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hep-ph/0106037
Johannes Bluemlein
J. Bl\"umlein and D. Robaschik
On the Scaling Violations of Diffractive Structure Functions: Operator Approach
12 pages LATEX, 2 style files
Phys.Lett.B517:222-232,2001
10.1016/S0370-2693(01)00999-6
DESY 01-072
hep-ph hep-ex hep-lat
null
A quantum field theoretic treatment of inclusive deep-inelastic diffractive scattering is given. The process can be described in the general framework of non-forward scattering processes using the light-cone expansion in the generalized Bjorken region. Evolution equations of the diffractive hadronic matrix elements a...
[ { "created": "Mon, 4 Jun 2001 18:15:50 GMT", "version": "v1" }, { "created": "Tue, 30 Oct 2001 05:35:14 GMT", "version": "v2" } ]
2008-11-26
[ [ "Blümlein", "J.", "" ], [ "Robaschik", "D.", "" ] ]
A quantum field theoretic treatment of inclusive deep-inelastic diffractive scattering is given. The process can be described in the general framework of non-forward scattering processes using the light-cone expansion in the generalized Bjorken region. Evolution equations of the diffractive hadronic matrix elements are...
2003.12050
Dimitrios K. Papoulias
O. G. Miranda, D. K. Papoulias, G. Sanchez Garcia, O. Sanders, M. T\'ortola, J. W. F. Valle
Implications of the first detection of coherent elastic neutrino-nucleus scattering (CEvNS) with Liquid Argon
discussion expanded including light mediators and nuclear uncertainties, figures added, references added. V3: Fig. 7 corrected, conclusions unchanged
JHEP 05 (2020) 130
10.1007/JHEP05(2020)130
IFIC/20-XXX
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The CENNS-10 experiment of the COHERENT collaboration has recently reported the first detection of coherent-elastic neutrino-nucleus scattering (CEvNS) in liquid Argon with more than $3 \sigma$ significance. In this work, we exploit the new data in order to probe various interesting parameters which are of key import...
[ { "created": "Thu, 26 Mar 2020 17:34:40 GMT", "version": "v1" }, { "created": "Fri, 3 Apr 2020 15:34:43 GMT", "version": "v2" }, { "created": "Sun, 8 Nov 2020 18:49:59 GMT", "version": "v3" } ]
2020-11-10
[ [ "Miranda", "O. G.", "" ], [ "Papoulias", "D. K.", "" ], [ "Garcia", "G. Sanchez", "" ], [ "Sanders", "O.", "" ], [ "Tórtola", "M.", "" ], [ "Valle", "J. W. F.", "" ] ]
The CENNS-10 experiment of the COHERENT collaboration has recently reported the first detection of coherent-elastic neutrino-nucleus scattering (CEvNS) in liquid Argon with more than $3 \sigma$ significance. In this work, we exploit the new data in order to probe various interesting parameters which are of key importan...
hep-ph/0202095
Alexander Friedland
Alexander Friedland (IAS, Princeton), Andrei Gruzinov (NYU, New York)
A new solution to the solar neutrino deficit
6 pages, 5 figures, version accepted for publication in Astroparticle Physics
Astropart.Phys.19:575-582,2003
10.1016/S0927-6505(02)00255-4
null
hep-ph astro-ph
null
We reexamine the transition magnetic moment solution to the solar neutrino problem. We argue that the absence of large time variations in the Super-Kamiokande rate provides strong evidence against spin-flavor flip in the solar convective zone. Spin-flavor flip could, however, occur in the primordial magnetic field in...
[ { "created": "Mon, 11 Feb 2002 19:15:20 GMT", "version": "v1" }, { "created": "Thu, 2 May 2002 01:15:47 GMT", "version": "v2" }, { "created": "Wed, 4 Dec 2002 03:40:43 GMT", "version": "v3" } ]
2011-05-23
[ [ "Friedland", "Alexander", "", "IAS, Princeton" ], [ "Gruzinov", "Andrei", "", "NYU, New York" ] ]
We reexamine the transition magnetic moment solution to the solar neutrino problem. We argue that the absence of large time variations in the Super-Kamiokande rate provides strong evidence against spin-flavor flip in the solar convective zone. Spin-flavor flip could, however, occur in the primordial magnetic field in t...
1403.3908
Liucheng Wang
Ran Ding, Liucheng Wang, Bin Zhu
Neutralino Dark Matter in Gauge Mediation After Run I of LHC and LUX
Minor changes, version to appear in Phys. Lett. B
null
10.1016/j.physletb.2014.05.007
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Neutralino can be the dark matter candidate in the gauge-mediated supersymmetry breaking models if the conformal sequestered mechanism is assumed in the hidden sector. In this paper, we study this mechanism by using the current experimental results after the run I of LHC and LUX. By adding new Yukawa couplings betwee...
[ { "created": "Sun, 16 Mar 2014 11:38:29 GMT", "version": "v1" }, { "created": "Tue, 1 Apr 2014 03:30:40 GMT", "version": "v2" }, { "created": "Mon, 5 May 2014 03:53:41 GMT", "version": "v3" } ]
2015-06-19
[ [ "Ding", "Ran", "" ], [ "Wang", "Liucheng", "" ], [ "Zhu", "Bin", "" ] ]
Neutralino can be the dark matter candidate in the gauge-mediated supersymmetry breaking models if the conformal sequestered mechanism is assumed in the hidden sector. In this paper, we study this mechanism by using the current experimental results after the run I of LHC and LUX. By adding new Yukawa couplings between ...
hep-ph/0505230
Andrei Kataev
A.L. Kataev
Renormalons at the boundaries between perturbative and non-perturbative QCD
16 pages, LaTeX, Extanded version of the talk at 19th Rencontre de Physique de la Vallee d" Aosta (27 February-5 March, 2005, La Thuile, Aosta Valley, Italy); Few additional comments added, several references added, accepted for publication in Mod.Phys.Lett.A as a Brief Review with the title "Deep inelastic sum...
Mod.Phys.Lett. A20 (2005) 2007-2022
10.1142/S0217732305018165
null
hep-ph hep-ex
null
The basis of renormalon calculus is briefly discussed. The method is applied to study QCD predictions for three sum rules of deep-inelastic scattering, namely for the Gross-Llewellyn Smith, Bjorken polarized and unpolarized sum rules. It is shown that the renormalon structures of theses sum rules are closely related....
[ { "created": "Fri, 27 May 2005 05:57:52 GMT", "version": "v1" }, { "created": "Mon, 27 Jun 2005 15:24:26 GMT", "version": "v2" } ]
2009-11-11
[ [ "Kataev", "A. L.", "" ] ]
The basis of renormalon calculus is briefly discussed. The method is applied to study QCD predictions for three sum rules of deep-inelastic scattering, namely for the Gross-Llewellyn Smith, Bjorken polarized and unpolarized sum rules. It is shown that the renormalon structures of theses sum rules are closely related. T...
hep-ph/9603220
null
M. Baillargeon(1), U. Baur(2), G. Belanger(3), F. Boudjema(3), G. Couture(4), M. Gintner(5) and S. Godfrey(5) ((1) GTAE, Lisbon, (2) SUNY Buffalo, (3) ENSLAPP-Annecy, (4) UQUAM Montreal, (5) Carleton, Ottawa)
Anomalous Couplings and Chiral Lagrangians: An Update
8 pages, 1 Postscript figure, LaTeX, uses epsfig.sty, to appear in the Proceedings of the LC2000 Workshop, Annecy, Gran Sasso and Hamburg, February -- September 1995
null
null
UB-HET-96-01
hep-ph
null
We present an update of the limits expected for anomalous gauge boson couplings in the language of chiral Lagrangian operators at the LHC and the Linear Collider. Both, the $e^+e^-$ and the $\gamma\gamma$ mode of the Linear Collider are analyzed. With a 500~GeV $e^+e^-$ collider, and an integrated luminosity of 50~--...
[ { "created": "Mon, 4 Mar 1996 18:03:37 GMT", "version": "v1" } ]
2007-05-23
[ [ "Baillargeon", "M.", "" ], [ "Baur", "U.", "" ], [ "Belanger", "G.", "" ], [ "Boudjema", "F.", "" ], [ "Couture", "G.", "" ], [ "Gintner", "M.", "" ], [ "Godfrey", "S.", "" ] ]
We present an update of the limits expected for anomalous gauge boson couplings in the language of chiral Lagrangian operators at the LHC and the Linear Collider. Both, the $e^+e^-$ and the $\gamma\gamma$ mode of the Linear Collider are analyzed. With a 500~GeV $e^+e^-$ collider, and an integrated luminosity of 50~--~8...
hep-ph/9811347
Juergen Berges
J. Berges, D.-U. Jungnickel, C. Wetterich
The Chiral Phase Transition at High Baryon Density from Nonperturbative Flow Equations
11 pages, 2 figures, LaTex
Eur.Phys.J.C13:323-329,2000
10.1007/s100520000275
MIT-CTP-2794, HD-THEP-98-57
hep-ph hep-lat
null
We investigate the QCD chiral phase transition at high baryon number density within the linear quark meson model for two flavors. The method we employ is based on an exact renormalization group equation for the free energy. Truncated nonperturbative flow equations are derived at nonzero chemical potential and tempera...
[ { "created": "Mon, 16 Nov 1998 16:38:14 GMT", "version": "v1" } ]
2010-02-04
[ [ "Berges", "J.", "" ], [ "Jungnickel", "D. -U.", "" ], [ "Wetterich", "C.", "" ] ]
We investigate the QCD chiral phase transition at high baryon number density within the linear quark meson model for two flavors. The method we employ is based on an exact renormalization group equation for the free energy. Truncated nonperturbative flow equations are derived at nonzero chemical potential and temperatu...
1912.11050
Ian Moult
Hao Chen, Ming-Xing Luo, Ian Moult, Tong-Zhi Yang, Xiaoyuan Zhang, and Hua Xing Zhu
Three Point Energy Correlators in the Collinear Limit: Symmetries, Dualities and Analytic Results
52 pages, 12 figures v2. Minor typos corrected, matches journal version
null
10.1007/JHEP08(2020)028
null
hep-ph hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Energy Correlators measure the energy deposited in multiple detectors as a function of the angles between the detectors. In this paper, we analytically compute the three particle correlator in the collinear limit in QCD for quark and gluon jets, and also in $\mathcal{N}=4$ super Yang-Mills theory. We find an intrigui...
[ { "created": "Mon, 23 Dec 2019 19:00:00 GMT", "version": "v1" }, { "created": "Fri, 6 Nov 2020 19:35:39 GMT", "version": "v2" } ]
2020-11-10
[ [ "Chen", "Hao", "" ], [ "Luo", "Ming-Xing", "" ], [ "Moult", "Ian", "" ], [ "Yang", "Tong-Zhi", "" ], [ "Zhang", "Xiaoyuan", "" ], [ "Zhu", "Hua Xing", "" ] ]
Energy Correlators measure the energy deposited in multiple detectors as a function of the angles between the detectors. In this paper, we analytically compute the three particle correlator in the collinear limit in QCD for quark and gluon jets, and also in $\mathcal{N}=4$ super Yang-Mills theory. We find an intriguing...
hep-ph/0508094
Yu-Xin Liu
Lei Chang, Huan Chen, Bin Wang, Wei Yuan, Yu-xin Liu
Chemical Potential Dependence of Chiral Quark Condensate in Dyson-Schwinger Equation Approach of QCD
19 pages, 3 figures, completely rewritten
Phys.Lett.B644:315-321,2007
10.1016/j.physletb.2006.11.073
null
hep-ph
null
We propose a chemical potential dependent effective gluon propagator and study the chiral quark condensate in strongly interacting matter in the framework of Dyson-Schwinger equation approach. The obtained results manifest that, as the effect of the chemical potential on the effective gluon propagator is taken into a...
[ { "created": "Mon, 8 Aug 2005 14:53:30 GMT", "version": "v1" }, { "created": "Mon, 6 Nov 2006 14:13:40 GMT", "version": "v2" } ]
2008-11-26
[ [ "Chang", "Lei", "" ], [ "Chen", "Huan", "" ], [ "Wang", "Bin", "" ], [ "Yuan", "Wei", "" ], [ "Liu", "Yu-xin", "" ] ]
We propose a chemical potential dependent effective gluon propagator and study the chiral quark condensate in strongly interacting matter in the framework of Dyson-Schwinger equation approach. The obtained results manifest that, as the effect of the chemical potential on the effective gluon propagator is taken into acc...
hep-ph/9502238
null
I.I. Bigi and H. Yamamoto
Interference Between Cabibbo Allowed and Doubly Forbidden Transitions in $D\ra K_{S,L} + \pi '$s Decays
6 pages, latex, no figures
Phys.Lett.B349:363-366,1995
10.1016/0370-2693(95)00285-S
UND-HEP-94-BIG09, HUTP-94/A029
hep-ph
null
Both Cabibbo allowed and doubly forbidden transitions contribute coherently to $D\rightarrow K_{S,L}+\pi 's$ decays. This leads to several intriguing and even quantitatively significant consequences, among them: (i) A difference between $\Gamma (D^+\rightarrow K_S \pi ^+)$ and $\Gamma (D^+\rightarrow K_L \pi ^+)$ and...
[ { "created": "Sat, 7 Jan 1995 04:41:30 GMT", "version": "v1" } ]
2016-09-01
[ [ "Bigi", "I. I.", "" ], [ "Yamamoto", "H.", "" ] ]
Both Cabibbo allowed and doubly forbidden transitions contribute coherently to $D\rightarrow K_{S,L}+\pi 's$ decays. This leads to several intriguing and even quantitatively significant consequences, among them: (i) A difference between $\Gamma (D^+\rightarrow K_S \pi ^+)$ and $\Gamma (D^+\rightarrow K_L \pi ^+)$ and b...
hep-ph/0207235
Cheng-Wei Chiang
Cheng-Wei Chiang, Zumin Luo, and Jonathan L. Rosner
Light Gluino and the Running of alpha_s
16 pages, 2 figures; text modified and references added for journal publication
Phys.Rev.D67:035008,2003
10.1103/PhysRevD.67.035008
ANL-HEP-PR-02-055, EFI-02-90
hep-ph
null
A gluino in the mass range 12--16 GeV combined with a light (2--5.5 GeV) bottom squark, as has been proposed recently to explain an excess of b quark hadroproduction, would affect the momentum-scale dependence (``running'') of the strong coupling constant alpha_s in such a way as to raise its value at M_Z by about 0....
[ { "created": "Thu, 18 Jul 2002 23:40:43 GMT", "version": "v1" }, { "created": "Fri, 19 Jul 2002 20:07:12 GMT", "version": "v2" }, { "created": "Mon, 29 Jul 2002 20:30:57 GMT", "version": "v3" }, { "created": "Tue, 3 Dec 2002 16:38:40 GMT", "version": "v4" } ]
2014-11-17
[ [ "Chiang", "Cheng-Wei", "" ], [ "Luo", "Zumin", "" ], [ "Rosner", "Jonathan L.", "" ] ]
A gluino in the mass range 12--16 GeV combined with a light (2--5.5 GeV) bottom squark, as has been proposed recently to explain an excess of b quark hadroproduction, would affect the momentum-scale dependence (``running'') of the strong coupling constant alpha_s in such a way as to raise its value at M_Z by about 0.01...
2212.10490
Roberto Frezzotti Prof
Constantia Alexandrou, Simone Bacchio, Petros Dimopoulos, Jacob Finkenrath, Roberto Frezzotti, Giuseppe Gagliardi, Marco Garofalo, Kyriakos Hadjiyiannakou, Bartosz Kostrzewa, Karl Jansen, Vittorio Lubicz, Marcus Petschlies, Francesco Sanfilippo, Silvano Simula, Carsten Urbach, Urs Wenger
Short \& intermediate distance HVP contributions to muon g-2: SM (lattice) prediction versus $e^+e^-$ annihilation data
Talk given at ICHEP 2022 (6-13 July 2022, Bologna - Italy) - Results here are almost final - Contribution accepted for publication on PoS
null
null
null
hep-ph hep-lat
http://creativecommons.org/licenses/by/4.0/
We present new lattice results of the ETM Collaboration, obtained from extensive simulations of lattice QCD with dynamical up, down, strange and charm quarks at physical mass values, different volumes and lattice spacings, concerning the SM prediction for the so-called intermediate window (W) and short-distance (SD) ...
[ { "created": "Tue, 20 Dec 2022 18:06:11 GMT", "version": "v1" } ]
2022-12-21
[ [ "Alexandrou", "Constantia", "" ], [ "Bacchio", "Simone", "" ], [ "Dimopoulos", "Petros", "" ], [ "Finkenrath", "Jacob", "" ], [ "Frezzotti", "Roberto", "" ], [ "Gagliardi", "Giuseppe", "" ], [ "Garofalo", "Marc...
We present new lattice results of the ETM Collaboration, obtained from extensive simulations of lattice QCD with dynamical up, down, strange and charm quarks at physical mass values, different volumes and lattice spacings, concerning the SM prediction for the so-called intermediate window (W) and short-distance (SD) co...
1711.03110
Dean Robinson
Florian U. Bernlochner, Zoltan Ligeti, Dean J. Robinson
Model independent analysis of semileptonic $B$ decays to $D^{**}$ for arbitrary new physics
17 pages, 4 figures, 5 tables; published version
Phys. Rev. D 97, 075011 (2018)
10.1103/PhysRevD.97.075011
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore semileptonic $B$ decays to the four lightest excited charm mesons, $D^{**} = \{D_0^*,\, D_1^*,$ $D_1,\, D_2^*\}$, for nonzero charged lepton mass and for all $b\to c \ell\bar\nu$ four-Fermi interactions, including calculation of the ${\cal O}(\Lambda_\text{QCD}/m_{c,b})$ and ${\cal O}(\alpha_s)$ correction...
[ { "created": "Wed, 8 Nov 2017 19:00:05 GMT", "version": "v1" }, { "created": "Fri, 4 May 2018 13:49:15 GMT", "version": "v2" } ]
2018-05-07
[ [ "Bernlochner", "Florian U.", "" ], [ "Ligeti", "Zoltan", "" ], [ "Robinson", "Dean J.", "" ] ]
We explore semileptonic $B$ decays to the four lightest excited charm mesons, $D^{**} = \{D_0^*,\, D_1^*,$ $D_1,\, D_2^*\}$, for nonzero charged lepton mass and for all $b\to c \ell\bar\nu$ four-Fermi interactions, including calculation of the ${\cal O}(\Lambda_\text{QCD}/m_{c,b})$ and ${\cal O}(\alpha_s)$ corrections ...
2211.02411
Zoltan Peli
Zolt\'an P\'eli
Vacuum stability and scalar masses in the superweak extension of the standard model
4 pages, 3 papers, ICHEP 2022 conference PoS
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We summarize our analysis for the vacuum stability of the superweak extension of the standard model. The parameter space allowed by the $W$-boson mass measurements and collider searches for a new scalar particle are also presented. The final result is a well defined non-vanishing portion of the parameter space, where...
[ { "created": "Fri, 4 Nov 2022 12:39:10 GMT", "version": "v1" } ]
2022-11-07
[ [ "Péli", "Zoltán", "" ] ]
We summarize our analysis for the vacuum stability of the superweak extension of the standard model. The parameter space allowed by the $W$-boson mass measurements and collider searches for a new scalar particle are also presented. The final result is a well defined non-vanishing portion of the parameter space, where t...
1207.2362
Andrea Mammarella
Francesco Fucito, Andrea Mammarella and Daniel Ricci Pacifici
Asymmetry at LHC for an U(1)' anomalous extension of MSSM
10 pages, 12 figures
null
10.1103/PhysRevD.86.095014
Phys. Rev. D 86, 095014 (2012)
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The measurement of the forward-backward asymmetry at LHC could be an important instrument to pinpoint the features of extra neutral gauge particles obtained by an extension of the gauge symmetry group of the standard model. For definitiveness, in this work we consider an extension of the gauge group of the Minimal Su...
[ { "created": "Tue, 10 Jul 2012 14:18:09 GMT", "version": "v1" }, { "created": "Tue, 18 Dec 2012 22:56:21 GMT", "version": "v2" } ]
2015-03-20
[ [ "Fucito", "Francesco", "" ], [ "Mammarella", "Andrea", "" ], [ "Pacifici", "Daniel Ricci", "" ] ]
The measurement of the forward-backward asymmetry at LHC could be an important instrument to pinpoint the features of extra neutral gauge particles obtained by an extension of the gauge symmetry group of the standard model. For definitiveness, in this work we consider an extension of the gauge group of the Minimal Supe...
0801.2237
Kirill Melnikov
Walter T. Giele, Zoltan Kunszt, Kirill Melnikov
Full one-loop amplitudes from tree amplitudes
27 pages, revtex
JHEP 0804:049,2008
10.1088/1126-6708/2008/04/049
null
hep-ph
null
We establish an efficient polynomial-complexity algorithm for one-loop calculations, based on generalized $D$-dimensional unitarity. It allows automated computations of both cut-constructible {\it and} rational parts of one-loop scattering amplitudes from on-shell tree amplitudes. We illustrate the method by (re)-com...
[ { "created": "Tue, 15 Jan 2008 09:33:20 GMT", "version": "v1" } ]
2009-09-17
[ [ "Giele", "Walter T.", "" ], [ "Kunszt", "Zoltan", "" ], [ "Melnikov", "Kirill", "" ] ]
We establish an efficient polynomial-complexity algorithm for one-loop calculations, based on generalized $D$-dimensional unitarity. It allows automated computations of both cut-constructible {\it and} rational parts of one-loop scattering amplitudes from on-shell tree amplitudes. We illustrate the method by (re)-compu...
hep-ph/9705365
Shaouly Bar-Shalom
Shaouly Bar-Shalom
Flavor Changing Transitions and the Top Quark in a Two Higgs Doublets Model; Application to e^+e^- --> t bar-c nu_e bar-nu_e, t bar -c e^+ e^-, t bar-c Z, t --> cW^+W^- and t --> cZZ
7 pages, latex, 4 figures embadded in the text using psfig. Talk presented at the first FCNC symposium, February 19-21, 1997, Santa Monica, CA. To appear in the proceedings of this symposium
null
null
UCRHEP-T190
hep-ph
null
Extension of the SM with one extra Higgs doublet may give rise to flavor-changing-scalar coupling of a neutral Higgs to a pair of top-charm quarks. This coupling gives rise to a large tree-level effective W^+W^-;ZZ - Higgs - t bar-c interaction. We find that the reactions e^+e^- --> t bar-c nu_e bar-nu_e, t bar-c e^+...
[ { "created": "Tue, 20 May 1997 17:45:45 GMT", "version": "v1" } ]
2007-05-23
[ [ "Bar-Shalom", "Shaouly", "" ] ]
Extension of the SM with one extra Higgs doublet may give rise to flavor-changing-scalar coupling of a neutral Higgs to a pair of top-charm quarks. This coupling gives rise to a large tree-level effective W^+W^-;ZZ - Higgs - t bar-c interaction. We find that the reactions e^+e^- --> t bar-c nu_e bar-nu_e, t bar-c e^+e^...
1009.4647
Stephen Adler
Stephen L. Adler
Parameterized Adaptive Multidimensional Integration Routines (PAMIR): Localization by Repeated 2^p Subdivision
84 pages Latex, figures included; minor changes to program descriptions and tildes added to Eqs. (63) and (65)
null
null
null
hep-ph cs.MS cs.NA math.NA
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This book draft gives the theory of a new method for p dimensional adaptive integration by repeated 2^p subdivision of simplexes and hypercubes. A new method of constructing high order integration routines for these geometries permits adjustable samplings of the integration region controlled by user supplied paramete...
[ { "created": "Thu, 23 Sep 2010 15:54:20 GMT", "version": "v1" }, { "created": "Thu, 28 Oct 2010 18:21:33 GMT", "version": "v2" } ]
2010-10-29
[ [ "Adler", "Stephen L.", "" ] ]
This book draft gives the theory of a new method for p dimensional adaptive integration by repeated 2^p subdivision of simplexes and hypercubes. A new method of constructing high order integration routines for these geometries permits adjustable samplings of the integration region controlled by user supplied parameters...
1706.10072
Davide Napoletano
Davide Napoletano, Frank Krauss and Steffen Schumann
Bottom-quark mass effects in associated production with $Z$ and $H$ bosons
Proceedings of XXV International Workshop on Deep-Inelastic Scattering and Related Subjects, 3-7 April 2017, University of Birmingham, UK. 10 pages, 6 figures
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this study, predictions obtained in the four and in the five flavour schemes are compared for two important processes involving heavy flavours at the LHC: the production of a $Z$ or a Higgs boson in association with $b$ quarks. In particular we obtain predictions with \Sherpa's \MCatNLO implementation for the four...
[ { "created": "Fri, 30 Jun 2017 09:14:28 GMT", "version": "v1" } ]
2017-07-03
[ [ "Napoletano", "Davide", "" ], [ "Krauss", "Frank", "" ], [ "Schumann", "Steffen", "" ] ]
In this study, predictions obtained in the four and in the five flavour schemes are compared for two important processes involving heavy flavours at the LHC: the production of a $Z$ or a Higgs boson in association with $b$ quarks. In particular we obtain predictions with \Sherpa's \MCatNLO implementation for the four--...
hep-ph/9509277
Gi-Chol Cho
G. C. Cho, Y. Kizukuri, and N. Oshimo
Constraints on Light Top Squark from $B^0$-$\bar{B}^0$ mixing
8 pages latex file, 2 figures
Phys.Lett.B372:101-105,1996
10.1016/0370-2693(96)00055-X
TKU-HEP 95/02, OCHA-PP-62
hep-ph
null
We discuss the constraints on the mass of the lighter top squark from \bbbar\ mixing in the minimal supersymmetric standard model. A light top squark whose mass is less than half of the $Z^0$-boson mass has not yet been excluded from direct search experiments at LEP. However, the existence of the light top squark may...
[ { "created": "Tue, 12 Sep 1995 11:20:02 GMT", "version": "v1" } ]
2008-11-26
[ [ "Cho", "G. C.", "" ], [ "Kizukuri", "Y.", "" ], [ "Oshimo", "N.", "" ] ]
We discuss the constraints on the mass of the lighter top squark from \bbbar\ mixing in the minimal supersymmetric standard model. A light top squark whose mass is less than half of the $Z^0$-boson mass has not yet been excluded from direct search experiments at LEP. However, the existence of the light top squark may e...
1103.1578
Christian Fischer
Jacqueline A. Bonnet, Christian S. Fischer and Richard Williams
Effects of Anisotropy in QED3 from Dyson-Schwinger equations in a box
9 pages, 7 figures, v2: minor changes, typos corrected, version accepted by PRB
null
10.1103/PhysRevB.84.024520
null
hep-ph cond-mat.supr-con hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the effect of anisotropies in the fermion velocities of 2+1 dimensional QED on the critical number N_f^c of fermions for dynamical mass generation. Our framework are the Dyson-Schwinger equations for the gauge boson and fermion propagators formulated in a finite volume. In contrast to previous Dyson-Sc...
[ { "created": "Tue, 8 Mar 2011 16:37:13 GMT", "version": "v1" }, { "created": "Wed, 29 Jun 2011 09:29:23 GMT", "version": "v2" } ]
2011-07-18
[ [ "Bonnet", "Jacqueline A.", "" ], [ "Fischer", "Christian S.", "" ], [ "Williams", "Richard", "" ] ]
We investigate the effect of anisotropies in the fermion velocities of 2+1 dimensional QED on the critical number N_f^c of fermions for dynamical mass generation. Our framework are the Dyson-Schwinger equations for the gauge boson and fermion propagators formulated in a finite volume. In contrast to previous Dyson-Schw...
hep-ph/9801453
Hector DE Vega
D. Boyanovsky, D. Cormier, H. J. de Vega, R. Holman, S. P. Kumar
Out of Equilibrium Fields in Inflationary Dynamics. Density Fluctuations
Latex file, 76 pages, 26 figures in .eps files. To appear in the Proceedings of the VIth. Erice Chalonge School on Astrofundamental Physics, N. S\'anchez and A. Zichichi eds., Kluwer, 1998
null
null
null
hep-ph astro-ph gr-qc hep-th
null
The energy and time scales during the inflationary stage of the universe calls for an out of equilibrium quantum field treatment. Moreover, the high energy densities involved make necessary the use of non-perturbative approaches as large N and Hartree methods. We start these lectures by introducing such non-perturbat...
[ { "created": "Fri, 30 Jan 1998 16:07:45 GMT", "version": "v1" } ]
2007-05-23
[ [ "Boyanovsky", "D.", "" ], [ "Cormier", "D.", "" ], [ "de Vega", "H. J.", "" ], [ "Holman", "R.", "" ], [ "Kumar", "S. P.", "" ] ]
The energy and time scales during the inflationary stage of the universe calls for an out of equilibrium quantum field treatment. Moreover, the high energy densities involved make necessary the use of non-perturbative approaches as large N and Hartree methods. We start these lectures by introducing such non-perturbativ...
1805.07522
Takaaki Nomura
Chuan-Hung Chen, Takaaki Nomura
$\epsilon'/\epsilon$ from charged-Higgs-induced gluonic dipole operators
15 pages, 4 figures, version accepted for publication in Physics Letters B
null
10.1016/j.physletb.2018.11.006
KIAS-P18043
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the effect of charged-Higgs-induced chromomagnetic operator, $Q_{8G}(-) \equiv \bar s \sigma^{\mu \nu} T^a \gamma_5 d G^a_{\mu \nu}$, on the Kaon direct CP violation $Re(\epsilon'/\epsilon)$. Using the matrix element $\langle \pi \pi | O_{8G}(-) | K^0 \rangle$ recently obtained by a large $N_c$ dual QCD appr...
[ { "created": "Sat, 19 May 2018 06:18:01 GMT", "version": "v1" }, { "created": "Mon, 19 Nov 2018 14:09:14 GMT", "version": "v2" } ]
2018-11-20
[ [ "Chen", "Chuan-Hung", "" ], [ "Nomura", "Takaaki", "" ] ]
We study the effect of charged-Higgs-induced chromomagnetic operator, $Q_{8G}(-) \equiv \bar s \sigma^{\mu \nu} T^a \gamma_5 d G^a_{\mu \nu}$, on the Kaon direct CP violation $Re(\epsilon'/\epsilon)$. Using the matrix element $\langle \pi \pi | O_{8G}(-) | K^0 \rangle$ recently obtained by a large $N_c$ dual QCD approa...
1302.6266
Alexander Natale
Subhaditya Bhattacharya, Ernest Ma, Alexander Natale, Ahmed Rashed
Radiative Scaling Neutrino Mass with $A_4$ Symmetry
11 pages, 1 figure
Phys. Rev. D 87, 097301 (2013)
10.1103/PhysRevD.87.097301
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A new idea for neutrino mass was proposed recently, where its smallness is not due to the seesaw mechanism, i.e. not inversely proportional to some large mass scale. It comes from a one-loop mechanism with dark matter in the loop consisting of singlet Majorana fermions $N_i$ with masses of order 10 keV and neutrino m...
[ { "created": "Mon, 25 Feb 2013 22:23:45 GMT", "version": "v1" } ]
2013-06-06
[ [ "Bhattacharya", "Subhaditya", "" ], [ "Ma", "Ernest", "" ], [ "Natale", "Alexander", "" ], [ "Rashed", "Ahmed", "" ] ]
A new idea for neutrino mass was proposed recently, where its smallness is not due to the seesaw mechanism, i.e. not inversely proportional to some large mass scale. It comes from a one-loop mechanism with dark matter in the loop consisting of singlet Majorana fermions $N_i$ with masses of order 10 keV and neutrino mas...
2108.13451
Julia Gonski
Julia Gonski, Jerry Lai, Benjamin Nachman, In\^es Ochoa
High-dimensional Anomaly Detection with Radiative Return in $e^{+}e^{-}$ Collisions
24 pages, 13 figures
null
10.1007/JHEP04(2022)156
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Experiments at a future $e^{+}e^{-}$ collider will be able to search for new particles with masses below the nominal centre-of-mass energy by analyzing collisions with initial-state radiation (radiative return). We show that machine learning methods that use imperfect or missing training labels can achieve sensitivit...
[ { "created": "Mon, 30 Aug 2021 18:07:03 GMT", "version": "v1" }, { "created": "Mon, 20 Sep 2021 13:11:15 GMT", "version": "v2" }, { "created": "Tue, 8 Feb 2022 18:14:41 GMT", "version": "v3" } ]
2022-05-11
[ [ "Gonski", "Julia", "" ], [ "Lai", "Jerry", "" ], [ "Nachman", "Benjamin", "" ], [ "Ochoa", "Inês", "" ] ]
Experiments at a future $e^{+}e^{-}$ collider will be able to search for new particles with masses below the nominal centre-of-mass energy by analyzing collisions with initial-state radiation (radiative return). We show that machine learning methods that use imperfect or missing training labels can achieve sensitivity ...
hep-ph/0209306
Apostolos Pilaftsis
Athanasios Dedes and Apostolos Pilaftsis
Resummed Effective Lagrangian for Higgs-Mediated FCNC Interactions in the CP-Violating MSSM
40 pages, version as to appear in Physical Review D
Phys.Rev. D67 (2003) 015012
10.1103/PhysRevD.67.015012
FERMILAB-Pub-02/226-T and MC-TH/2002-05
hep-ph
null
We derive the general resummed effective Lagrangian for Higgs-mediated flavour-changing neutral-current (FCNC) interactions in the Minimal Supersymmetric Standard Model (MSSM), without resorting to particular assumptions that rely on the squark-mass or the quark-Yukawa structure of the theory. In our derivation we al...
[ { "created": "Wed, 25 Sep 2002 20:29:22 GMT", "version": "v1" }, { "created": "Mon, 30 Sep 2002 16:21:12 GMT", "version": "v2" }, { "created": "Sat, 21 Dec 2002 17:15:07 GMT", "version": "v3" } ]
2009-11-07
[ [ "Dedes", "Athanasios", "" ], [ "Pilaftsis", "Apostolos", "" ] ]
We derive the general resummed effective Lagrangian for Higgs-mediated flavour-changing neutral-current (FCNC) interactions in the Minimal Supersymmetric Standard Model (MSSM), without resorting to particular assumptions that rely on the squark-mass or the quark-Yukawa structure of the theory. In our derivation we also...
1604.03298
Guo-Li Wang
Tianhong Wang, Yue Jiang, Han Yuan, Kan Chai, Guo-Li Wang
Weak Decays of $J/\psi$ and $\Upsilon(1S)$
26 pages, 12 figures, 17 tables
J. Phys. G: Nucl. Part. Phys. 44 (2017) 045004
10.1088/1361-6471/aa5f68
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we study the weak decays of $J/\psi$ and $\Upsilon(1S)$. Using the Bethe-Salpeter method, we calculate the hadronic transition amplitude and give the form factors. We find that two new form factors $h_1$ and $h_2$, which do not appear in existing literature, have contributions in $1^-\to 1^-$ decays. Th...
[ { "created": "Tue, 12 Apr 2016 08:36:35 GMT", "version": "v1" }, { "created": "Tue, 9 Aug 2016 02:45:22 GMT", "version": "v2" } ]
2021-11-05
[ [ "Wang", "Tianhong", "" ], [ "Jiang", "Yue", "" ], [ "Yuan", "Han", "" ], [ "Chai", "Kan", "" ], [ "Wang", "Guo-Li", "" ] ]
In this paper we study the weak decays of $J/\psi$ and $\Upsilon(1S)$. Using the Bethe-Salpeter method, we calculate the hadronic transition amplitude and give the form factors. We find that two new form factors $h_1$ and $h_2$, which do not appear in existing literature, have contributions in $1^-\to 1^-$ decays. They...
2102.10844
Dinh T Binh
D.T.Binh, L.T.Hue, V. H. Binh, H. N. Long
Neutrino Energy Loss Rates in 3-3-1 Models
Revised version, new references added. arXiv admin note: text overlap with arXiv:2005.03808 by other authors
Int. J. Mod. Phys. A 36, No 26 (2021) 2150179
10.1142/S0217751X21501797
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
The stellar energy-loss rates $\mathcal{Q}$ due to the production of neutrino pair in the framework of 3-3-1 models are presented. The energy loss rate $\mathcal{Q}$ is evaluated for different values of $\beta=\pm\fr{1}{\sqrt{3}},\pm\fr{2}{\sqrt{3}},\pm\sqrt{3}$ in which $\beta$ is a parameter used to define the char...
[ { "created": "Mon, 22 Feb 2021 09:13:58 GMT", "version": "v1" }, { "created": "Tue, 2 Mar 2021 12:22:15 GMT", "version": "v2" } ]
2021-10-11
[ [ "Binh", "D. T.", "" ], [ "Hue", "L. T.", "" ], [ "Binh", "V. H.", "" ], [ "Long", "H. N.", "" ] ]
The stellar energy-loss rates $\mathcal{Q}$ due to the production of neutrino pair in the framework of 3-3-1 models are presented. The energy loss rate $\mathcal{Q}$ is evaluated for different values of $\beta=\pm\fr{1}{\sqrt{3}},\pm\fr{2}{\sqrt{3}},\pm\sqrt{3}$ in which $\beta$ is a parameter used to define the charge...
hep-ph/0301155
Ma Jian-ping
J.P. Ma
Diffractive Photoproduction of Eta_c
20 pages with 3 figures. Text improved
Nucl.Phys.A727:333-352,2003
10.1016/j.nuclphysa.2003.08.016
AS-ITP-2003-001
hep-ph hep-ex
null
Diffractive photoproduction of $\eta_c$ is an important process to study the effect of Odderon, whose existence is still not confirmed in experiment. A detailed interpretation of Odderon in QCD, i.e., in terms of gluons is also unclear.Taking charm quarks as heavy quarks, we can use NRQCD and take $\eta_c$ as a $c\ba...
[ { "created": "Mon, 20 Jan 2003 04:10:59 GMT", "version": "v1" }, { "created": "Wed, 16 Apr 2003 03:28:38 GMT", "version": "v2" }, { "created": "Wed, 6 Aug 2003 18:49:09 GMT", "version": "v3" } ]
2009-11-05
[ [ "Ma", "J. P.", "" ] ]
Diffractive photoproduction of $\eta_c$ is an important process to study the effect of Odderon, whose existence is still not confirmed in experiment. A detailed interpretation of Odderon in QCD, i.e., in terms of gluons is also unclear.Taking charm quarks as heavy quarks, we can use NRQCD and take $\eta_c$ as a $c\bar ...
2307.01763
Yao Ji
Yao Ji, Alexander Manashov, Sven-Olaf Moch
On evolution kernels of twist-two operators
12 pages, two figures; The three-loop QCD kernel in electronic form is given in the ancillary file. V2: published version; reference added; typo corrected
null
null
TUM--HEP--1461/23, MPP--2023--137, DESY--23--091
hep-ph hep-th
http://creativecommons.org/licenses/by/4.0/
The evolution kernels that govern the scale dependence of the generalized parton distributions are invariant under transformations of the $\mathrm{SL}(2,\mathrm R)$ collinear subgroup of the conformal group. Beyond one loop the symmetry generators, due to quantum effects, differ from the canonical ones. We construct ...
[ { "created": "Tue, 4 Jul 2023 15:05:28 GMT", "version": "v1" }, { "created": "Fri, 29 Mar 2024 07:43:38 GMT", "version": "v2" } ]
2024-04-01
[ [ "Ji", "Yao", "" ], [ "Manashov", "Alexander", "" ], [ "Moch", "Sven-Olaf", "" ] ]
The evolution kernels that govern the scale dependence of the generalized parton distributions are invariant under transformations of the $\mathrm{SL}(2,\mathrm R)$ collinear subgroup of the conformal group. Beyond one loop the symmetry generators, due to quantum effects, differ from the canonical ones. We construct th...
0909.3204
Hiroshi Yokoya
Kaoru Hagiwara, Hiroshi Yokoya
Bound-state effects on gluino-pair production at hadron colliders
17 pages, 6 figures; references added, typos corrected
JHEP 0910:049,2009
10.1088/1126-6708/2009/10/049
KEK-TH-1330, CERN-PH-TH/2009-169
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study bound-state effects on the pair production of gluinos at hadron colliders, in a context of the minimal supersymmetric extension of the standard model. Due to the expected large mass and the octet color-charge of gluinos, the bound-state effects can be substantial at the LHC. We find significant deformation o...
[ { "created": "Thu, 17 Sep 2009 15:17:56 GMT", "version": "v1" }, { "created": "Mon, 21 Sep 2009 20:14:21 GMT", "version": "v2" } ]
2009-12-07
[ [ "Hagiwara", "Kaoru", "" ], [ "Yokoya", "Hiroshi", "" ] ]
We study bound-state effects on the pair production of gluinos at hadron colliders, in a context of the minimal supersymmetric extension of the standard model. Due to the expected large mass and the octet color-charge of gluinos, the bound-state effects can be substantial at the LHC. We find significant deformation of ...
2209.12555
Jorge Segovia
U. Taboada-Nieto, P.G. Ortega, D.R. Entem, F. Fern\'andez and J. Segovia
Kaon spectrum revisited
11 pages, 1 figure, 13 tables
null
null
null
hep-ph hep-ex hep-lat nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The European Organization for Nuclear Research (CERN) has recently approved a world-unique QCD facility in which an updated version of the external M2 beam line of the CERN SPS in conjunction with a universal spectrometer of the COMPASS experiment is used. One of its main goals is to use highly intense and energetic ...
[ { "created": "Mon, 26 Sep 2022 10:14:43 GMT", "version": "v1" } ]
2022-09-27
[ [ "Taboada-Nieto", "U.", "" ], [ "Ortega", "P. G.", "" ], [ "Entem", "D. R.", "" ], [ "Fernández", "F.", "" ], [ "Segovia", "J.", "" ] ]
The European Organization for Nuclear Research (CERN) has recently approved a world-unique QCD facility in which an updated version of the external M2 beam line of the CERN SPS in conjunction with a universal spectrometer of the COMPASS experiment is used. One of its main goals is to use highly intense and energetic ka...
1201.1794
Takuya Morozumi
D. Kimura, K. Y. Lee and T. Morozumi
The form factors of tau -> K pi(eta) nu and the predictions for CP violation beyond the standard model
51pages, 16figures. The version 7 incorporated the errata accepted to PTEP. In Fig. 9, the vertical axis label is corrected. In Fig.16, the numerical calculation was wrong and the figure is re-drawn. A typo of Eq.(21) is also corrected and the kinetic term is added to Eq.(A3)
null
10.1093/ptep/ptt084
HUPD1102
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the hadronic form factors of $\tau$ lepton decays $\tau \to K \pi(\eta) \nu$. We compute one loop corrections to the form factors using the chiral Lagrangian including vector mesons. The counterterms which subtract the divergence of the one-loop amplitudes are determined by using background field method. In ...
[ { "created": "Mon, 9 Jan 2012 15:14:10 GMT", "version": "v1" }, { "created": "Tue, 10 Jan 2012 13:44:38 GMT", "version": "v2" }, { "created": "Thu, 19 Jan 2012 08:53:27 GMT", "version": "v3" }, { "created": "Mon, 12 Nov 2012 15:08:44 GMT", "version": "v4" }, { "cr...
2014-05-07
[ [ "Kimura", "D.", "" ], [ "Lee", "K. Y.", "" ], [ "Morozumi", "T.", "" ] ]
We study the hadronic form factors of $\tau$ lepton decays $\tau \to K \pi(\eta) \nu$. We compute one loop corrections to the form factors using the chiral Lagrangian including vector mesons. The counterterms which subtract the divergence of the one-loop amplitudes are determined by using background field method. In th...
1012.5007
Sven Heinemeyer
S. Heinemeyer, V.A. Khoze, M.G. Ryskin, M. Tasevsky, G. Weiglein
BSM Higgs Physics in the Exclusive Forward Proton Mode at the LHC
36 pages, 15 figures; more explanations on changes with respect to previous analysis; version to appear in EPJC
null
10.1140/epjc/s10052-011-1649-7
DCPT/10/162, DESY 10-217, IPPP/10/81
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the prospects for Central Exclusive Diffractive (CED) production of BSM Higgs bosons at the LHC using forward proton detectors installed at 220 m and 420 m distance around ATLAS and / or CMS. We update a previous analysis for the MSSM taking into account improvements in the theoretical calculations and...
[ { "created": "Wed, 22 Dec 2010 15:24:46 GMT", "version": "v1" }, { "created": "Thu, 12 May 2011 17:29:47 GMT", "version": "v2" } ]
2015-05-20
[ [ "Heinemeyer", "S.", "" ], [ "Khoze", "V. A.", "" ], [ "Ryskin", "M. G.", "" ], [ "Tasevsky", "M.", "" ], [ "Weiglein", "G.", "" ] ]
We investigate the prospects for Central Exclusive Diffractive (CED) production of BSM Higgs bosons at the LHC using forward proton detectors installed at 220 m and 420 m distance around ATLAS and / or CMS. We update a previous analysis for the MSSM taking into account improvements in the theoretical calculations and t...
2209.03360
Torsten Bringmann
James Alvey, Torsten Bringmann and Helena Kolesova
No room to hide: implications of cosmic-ray upscattering for GeV-scale dark matter
44 pages, jheppub, 9 figures. Minor changes to match published version
JHEP 01 (2023) 123
10.1007/JHEP01(2023)123
CERN-TH-2022-147
hep-ph astro-ph.CO
http://creativecommons.org/licenses/by-nc-nd/4.0/
The irreducible upscattering of cold dark matter by cosmic rays opens up the intriguing possibility of detecting even light dark matter in conventional direct detection experiments or underground neutrino detectors. The mechanism also significantly enhances sensitivity to models with very large nuclear scattering rat...
[ { "created": "Wed, 7 Sep 2022 18:00:00 GMT", "version": "v1" }, { "created": "Wed, 1 Feb 2023 16:49:04 GMT", "version": "v2" } ]
2023-02-02
[ [ "Alvey", "James", "" ], [ "Bringmann", "Torsten", "" ], [ "Kolesova", "Helena", "" ] ]
The irreducible upscattering of cold dark matter by cosmic rays opens up the intriguing possibility of detecting even light dark matter in conventional direct detection experiments or underground neutrino detectors. The mechanism also significantly enhances sensitivity to models with very large nuclear scattering rates...
2204.05992
Jure Zupan
Reuven Balkin, Eric Madge, Tony Menzo, Gilad Perez, Yotam Soreq, and Jure Zupan
On the implications of positive W mass shift
18 pages, 4 figures, 1 Table, version matching the published one
null
10.1007/JHEP05(2022)133
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We investigate the phenomenological implications of the recent $W$ mass measurement by the CDF collaboration, which exhibits tension with the standard model (SM) electroweak fit. Performing the fit to the electroweak observables within the SM effective field theory, we find that the new physics that contributes eithe...
[ { "created": "Tue, 12 Apr 2022 17:56:22 GMT", "version": "v1" }, { "created": "Wed, 4 May 2022 20:42:07 GMT", "version": "v2" } ]
2022-06-08
[ [ "Balkin", "Reuven", "" ], [ "Madge", "Eric", "" ], [ "Menzo", "Tony", "" ], [ "Perez", "Gilad", "" ], [ "Soreq", "Yotam", "" ], [ "Zupan", "Jure", "" ] ]
We investigate the phenomenological implications of the recent $W$ mass measurement by the CDF collaboration, which exhibits tension with the standard model (SM) electroweak fit. Performing the fit to the electroweak observables within the SM effective field theory, we find that the new physics that contributes either ...
1512.03047
Andrei Angelescu
Andrei Angelescu, Abdelhak Djouadi, Gr\'egory Moreau and Fran\c{c}ois Richard
Diboson resonances within a custodially protected warped extra-dimensional scenario
10 pages, 2 figures
null
null
LPT-Orsay-15-94, LAL-Orsay-15-427
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose an interpretation of the diboson excess recently observed by the ATLAS and CMS collaborations in terms of Kaluza-Klein excitations of electroweak gauge bosons stemming from a realization of a warped extra-dimensional model that is protected by a custodial symmetry. Besides accounting for the LHC diboson da...
[ { "created": "Wed, 9 Dec 2015 20:56:26 GMT", "version": "v1" } ]
2015-12-10
[ [ "Angelescu", "Andrei", "" ], [ "Djouadi", "Abdelhak", "" ], [ "Moreau", "Grégory", "" ], [ "Richard", "François", "" ] ]
We propose an interpretation of the diboson excess recently observed by the ATLAS and CMS collaborations in terms of Kaluza-Klein excitations of electroweak gauge bosons stemming from a realization of a warped extra-dimensional model that is protected by a custodial symmetry. Besides accounting for the LHC diboson data...
hep-ph/0309311
Ji-Feng Yang
Ji-Feng Yang (ECNU, Shanghai)
Trace and chiral anomalies in QED and their underlying theory interpretation
18 pages, revtex, renewal of reference [4]
null
null
null
hep-ph hep-th
null
Parametrizing the possible underlying theory or new physics' decoupling effects in the most general way we reexamined the validity of canonical trace relation and chiral symmetry in certain one-loop two-point functions. The anomalies and the relation between chiral and trace Ward identities are investigated and inter...
[ { "created": "Sat, 27 Sep 2003 14:08:40 GMT", "version": "v1" }, { "created": "Wed, 1 Oct 2003 23:56:29 GMT", "version": "v2" }, { "created": "Tue, 25 Nov 2003 10:21:59 GMT", "version": "v3" } ]
2007-05-23
[ [ "Yang", "Ji-Feng", "", "ECNU, Shanghai" ] ]
Parametrizing the possible underlying theory or new physics' decoupling effects in the most general way we reexamined the validity of canonical trace relation and chiral symmetry in certain one-loop two-point functions. The anomalies and the relation between chiral and trace Ward identities are investigated and interpr...
1601.02659
Diego Cogollo
D. Cogollo, Jo\~ao P. Silva
Two Higgs doublet models with an $S_3$ symmetry
null
Phys. Rev. D 93, 095024 (2016)
10.1103/PhysRevD.93.095024
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study all implementations of the $S_3$ symmetry in the two Higgs doublet model with quarks, consistent with non-zero quark masses and a Cabibbo-Kobayashi-Maskawa (CKM) matrix which is not block diagonal. We study the impact of the various soft-breaking terms and vacuum expectation values, and find an interesting r...
[ { "created": "Mon, 11 Jan 2016 21:35:55 GMT", "version": "v1" }, { "created": "Sat, 28 May 2016 22:30:04 GMT", "version": "v2" } ]
2016-05-31
[ [ "Cogollo", "D.", "" ], [ "Silva", "João P.", "" ] ]
We study all implementations of the $S_3$ symmetry in the two Higgs doublet model with quarks, consistent with non-zero quark masses and a Cabibbo-Kobayashi-Maskawa (CKM) matrix which is not block diagonal. We study the impact of the various soft-breaking terms and vacuum expectation values, and find an interesting rel...
hep-ph/0604137
Stephen Clark
Stephen Clark (EPFL)
Interactions of Q-balls and matter
null
null
null
null
hep-ph
null
We know from previous work \cite{clark} that non topological solitons, Q balls, evaporate into fermions. All the constructions we used to find evaporation rate were dased on the fact that no fermions would move towards the Q ball. All these constructions left an opened question that is : what happens when a fermion i...
[ { "created": "Mon, 17 Apr 2006 19:34:15 GMT", "version": "v1" }, { "created": "Wed, 19 Apr 2006 13:34:02 GMT", "version": "v2" } ]
2007-05-23
[ [ "Clark", "Stephen", "", "EPFL" ] ]
We know from previous work \cite{clark} that non topological solitons, Q balls, evaporate into fermions. All the constructions we used to find evaporation rate were dased on the fact that no fermions would move towards the Q ball. All these constructions left an opened question that is : what happens when a fermion int...
hep-ph/0401067
Enrico Cattaruzza
Enrico Cattaruzza and Daniele Treleani
Cronin effect and energy conservation constraints in high energy proton-nucleus collisions
Accepted by Phys.Rev.D
Phys.Rev. D69 (2004) 094006
10.1103/PhysRevD.69.094006
null
hep-ph
null
We estimate the Cronin effect in pA collisions at the CERN LHC and at RHIC, using a Glauber-Eikonal model of initial state multiparton interactions. For a correct determination of the initial parton flux, we upgrade the model cross section, taking carefully into account all kinematical constraints of each multi-parto...
[ { "created": "Sun, 11 Jan 2004 11:17:54 GMT", "version": "v1" }, { "created": "Thu, 6 May 2004 13:05:52 GMT", "version": "v2" } ]
2009-11-10
[ [ "Cattaruzza", "Enrico", "" ], [ "Treleani", "Daniele", "" ] ]
We estimate the Cronin effect in pA collisions at the CERN LHC and at RHIC, using a Glauber-Eikonal model of initial state multiparton interactions. For a correct determination of the initial parton flux, we upgrade the model cross section, taking carefully into account all kinematical constraints of each multi-parton ...
hep-ph/0008275
Douglas Ross
D.A. Ross and L.J. Weston
Photon Structure Functions Beyind the SUSY Threshold
18 pages (LATEX), 5 figures
Eur.Phys.J.C18:593-599,2001
10.1007/s100520000552
null
hep-ph
null
We evolve virtual photon parton densities up to the SUSY threshold and higher using coupled inhomogeneous DGLAP differential equations. Reliable input parameterizations were available from the c-quark threshold. Limited $P^2$ ( target photon virtuality ) dependence is observed. The difference to the photon structur...
[ { "created": "Fri, 25 Aug 2000 15:27:07 GMT", "version": "v1" } ]
2010-03-25
[ [ "Ross", "D. A.", "" ], [ "Weston", "L. J.", "" ] ]
We evolve virtual photon parton densities up to the SUSY threshold and higher using coupled inhomogeneous DGLAP differential equations. Reliable input parameterizations were available from the c-quark threshold. Limited $P^2$ ( target photon virtuality ) dependence is observed. The difference to the photon structure fu...
0812.2631
Antonio Pich
Antonio Pich
Low-Energy Constants from Resonance Chiral Theory
Proceedings of the 8th International Conference on Quark Confinement and the Hadron Spectrum (Mainz, Germany, 1-6 September 2008). 10 pages
PoS Confinement8:026,2008
null
IFIC/08-65, FTUV/08-1215
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
I discuss the recent attempts to build an effective chiral Lagrangian incorporating massive resonance states. A useful approximation scheme to organize the resonance Lagrangian is provided by the large-Nc limit of QCD. Integrating out the resonance fields, one recovers the usual chiral perturbation theory Lagrangian ...
[ { "created": "Sun, 14 Dec 2008 13:12:27 GMT", "version": "v1" } ]
2009-06-25
[ [ "Pich", "Antonio", "" ] ]
I discuss the recent attempts to build an effective chiral Lagrangian incorporating massive resonance states. A useful approximation scheme to organize the resonance Lagrangian is provided by the large-Nc limit of QCD. Integrating out the resonance fields, one recovers the usual chiral perturbation theory Lagrangian wi...
2103.08598
Wen Yin
Ryuichiro Kitano and Wen Yin
Strong CP problem and axion dark matter with small instantons
32pages, 8figures
null
10.1007/JHEP07(2021)078
KEK-TH-2310
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The axion mass receives a large correction from small instantons if the QCD gets strongly coupled at high energies. We discuss the size of the new CP violating phases caused by the fact that the small instantons are sensitive to the UV physics. We also discuss the effects of the mass correction on the axion abundance...
[ { "created": "Mon, 15 Mar 2021 18:00:00 GMT", "version": "v1" } ]
2021-07-28
[ [ "Kitano", "Ryuichiro", "" ], [ "Yin", "Wen", "" ] ]
The axion mass receives a large correction from small instantons if the QCD gets strongly coupled at high energies. We discuss the size of the new CP violating phases caused by the fact that the small instantons are sensitive to the UV physics. We also discuss the effects of the mass correction on the axion abundance o...
1001.2563
Kathryn Zurek
Kathryn M. Zurek
TASI 2009 Lectures: Searching for Unexpected Physics at the LHC
35 pages, 21 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
These TASI lectures consider low mass hidden sectors from Hidden Valleys, Quirks and Unparticles. We show how each corresponds to a different limit of the same class of models: hidden sectors with non-abelian gauge groups with mass gaps well below a TeV that communicate to the Standard Model through weak scale suppre...
[ { "created": "Fri, 15 Jan 2010 16:46:12 GMT", "version": "v1" } ]
2016-09-08
[ [ "Zurek", "Kathryn M.", "" ] ]
These TASI lectures consider low mass hidden sectors from Hidden Valleys, Quirks and Unparticles. We show how each corresponds to a different limit of the same class of models: hidden sectors with non-abelian gauge groups with mass gaps well below a TeV that communicate to the Standard Model through weak scale suppress...
2206.07815
Francesco Giovanni Celiberto
Alessandro Bacchetta, Francesco Giovanni Celiberto, Marco Radici
Unveiling the proton structure via transverse-momentum-dependent gluon distributions
5 pages, 1 figure, presented by F.G. Celiberto, contribution to the proceedings of the 19th International Conference on Hadron Spectroscopy and Structure in memoriam Simon Eidelman (HADRON2021), version accepted for publication in Rev. Mex. Phys
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present exploratory studies of the proton content via unpolarized and polarized transverse-momentum-dependent gluon distributions in the proton at leading twist. We make use of an enhanced spectator-model approach to encode in our densities both small- and moderate-$x$ effects. These studies are relevant to the in...
[ { "created": "Wed, 15 Jun 2022 20:52:53 GMT", "version": "v1" } ]
2022-06-17
[ [ "Bacchetta", "Alessandro", "" ], [ "Celiberto", "Francesco Giovanni", "" ], [ "Radici", "Marco", "" ] ]
We present exploratory studies of the proton content via unpolarized and polarized transverse-momentum-dependent gluon distributions in the proton at leading twist. We make use of an enhanced spectator-model approach to encode in our densities both small- and moderate-$x$ effects. These studies are relevant to the inve...
2012.05135
Alexey Vladimirov
Marcin Bury, Alexei Prokudin, Alexey Vladimirov
N$^3$LO extraction of the Sivers function from SIDIS, Drell-Yan, and $W^\pm/Z$ data
6 pages, 3 figures
Phys. Rev. Lett. 126, 112002 (2021)
10.1103/PhysRevLett.126.112002
JLAB-THY-20-3296
hep-ph hep-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We perform the global analysis of polarized Semi-Inclusive Deep Inelastic Scattering (SIDIS), pion-induced polarized Drell-Yan (DY), and $W^\pm/Z$ boson production data and extract the Sivers function for $u$, $d$, $s$ and for sea-quarks. We use the framework of transverse momentum dependent factorization at N$^3$LO ...
[ { "created": "Wed, 9 Dec 2020 16:14:31 GMT", "version": "v1" } ]
2021-03-24
[ [ "Bury", "Marcin", "" ], [ "Prokudin", "Alexei", "" ], [ "Vladimirov", "Alexey", "" ] ]
We perform the global analysis of polarized Semi-Inclusive Deep Inelastic Scattering (SIDIS), pion-induced polarized Drell-Yan (DY), and $W^\pm/Z$ boson production data and extract the Sivers function for $u$, $d$, $s$ and for sea-quarks. We use the framework of transverse momentum dependent factorization at N$^3$LO ac...
1801.08259
Saeed Kamali
Saeed Kamali, Ahmed Rashed, Alakabha Datta
New physics in inclusive $B \to X_c\ell \bar{\nu}$ decay in light of $R(D^{(*)})$ measurements
29 pages, 59 figures
Phys. Rev. D 97, 095034 (2018)
10.1103/PhysRevD.97.095034
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work we study the effects of new-physics (NP) operators with different Lorentz structures on the inclusive $B \to X_c\tau \bar{\nu}$ decay and make predictions for the ratio of total decay rates $R(X_c)=\frac{\Gamma(B \to X_c\tau \bar{\nu}_\tau)}{\Gamma(B \to X_c \ell \bar{\nu}_\ell)}$ with $\ell=e, \mu$, the...
[ { "created": "Thu, 25 Jan 2018 02:49:00 GMT", "version": "v1" }, { "created": "Sat, 3 Feb 2018 20:22:04 GMT", "version": "v2" }, { "created": "Fri, 18 May 2018 02:05:02 GMT", "version": "v3" } ]
2018-05-31
[ [ "Kamali", "Saeed", "" ], [ "Rashed", "Ahmed", "" ], [ "Datta", "Alakabha", "" ] ]
In this work we study the effects of new-physics (NP) operators with different Lorentz structures on the inclusive $B \to X_c\tau \bar{\nu}$ decay and make predictions for the ratio of total decay rates $R(X_c)=\frac{\Gamma(B \to X_c\tau \bar{\nu}_\tau)}{\Gamma(B \to X_c \ell \bar{\nu}_\ell)}$ with $\ell=e, \mu$, the d...
hep-ph/9606268
null
Stefano Moretti (Cavendish Laboratory, Cambridge, UK)
Higgs signals and hard photons via $WW$-fusion in the Standard Model at the Next Linear Collider
27 pages, LaTeX, 10 PostScript figures embedded using epsfig, 8 figures bitmapped at 100dpi, complete paper with higher resolution figures available at ftp://axpa.hep.phy.cam.ac.uk/moretti/cavendish_9607 or at http://www.hep.phy.cam.ac.uk/theory/papers/
J.Phys.G22:1611-1632,1996
10.1088/0954-3899/22/11/009
Cavendish-HEP-96/07, DFTT 26/96, May 1996
hep-ph
null
Within the framework of the Standard Model, integrated and differential distributions are given for Higgs production via the $WW$-fusion mechanism and decay via the channels $H\ar b\bar b$ and $H\ar WW\ar {jjjj}$, with and without photon radiation, at Next Linear Collider energies. Calculations are carried out at tre...
[ { "created": "Fri, 7 Jun 1996 16:24:37 GMT", "version": "v1" } ]
2008-11-26
[ [ "Moretti", "Stefano", "", "Cavendish Laboratory, Cambridge, UK" ] ]
Within the framework of the Standard Model, integrated and differential distributions are given for Higgs production via the $WW$-fusion mechanism and decay via the channels $H\ar b\bar b$ and $H\ar WW\ar {jjjj}$, with and without photon radiation, at Next Linear Collider energies. Calculations are carried out at tree-...
0912.5210
Juan Carlos G \'omez Izquierdo
Juan Carlos G\'omez-Izquierdo and Abdel P\'erez-Lorenzana
Left-right symmetric model with $\mu\leftrightarrow\tau$ symmetry
9 pages, 4 figures. Title changed and we have added one new section: CP phase contribution. Minor corrections and references updated. Published version
Phys.Rev.D82:033008,2010
10.1103/PhysRevD.82.033008
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze the leptonic sector in the left-right symmetric model dressed with a $(Z_{2})^{3}$ discrete symmetry which realizes, after weak spontaneous breaking, a small broken $\mu\lra\tau$ symmetry that is suggested to explain observable neutrino oscillation data. $\mu\lra\tau$ symmetry is broken at tree level in th...
[ { "created": "Mon, 28 Dec 2009 19:37:54 GMT", "version": "v1" }, { "created": "Tue, 5 Jan 2010 20:10:37 GMT", "version": "v2" }, { "created": "Wed, 11 Aug 2010 19:12:25 GMT", "version": "v3" } ]
2014-11-20
[ [ "Gómez-Izquierdo", "Juan Carlos", "" ], [ "Pérez-Lorenzana", "Abdel", "" ] ]
We analyze the leptonic sector in the left-right symmetric model dressed with a $(Z_{2})^{3}$ discrete symmetry which realizes, after weak spontaneous breaking, a small broken $\mu\lra\tau$ symmetry that is suggested to explain observable neutrino oscillation data. $\mu\lra\tau$ symmetry is broken at tree level in the ...
1410.1742
Fernando Martinez-Vidal
J. Bernabeu and F. Martinez-Vidal
Colloquium: Time-reversal violation with quantum-entangled B mesons
20 pages, 18 figures, submitted to Reviews of Modern Physics Colloquia
null
10.1103/RevModPhys.87.165
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Symmetry transformations have been proven a bedrock tool for understanding the nature of particle interactions, formulating and testing fundamental theories. Based on the up to now unbroken CPT symmetry, the violation of the CP symmetry between matter and antimatter by weak interactions, discovered in the decay of ka...
[ { "created": "Tue, 7 Oct 2014 14:33:16 GMT", "version": "v1" } ]
2015-06-23
[ [ "Bernabeu", "J.", "" ], [ "Martinez-Vidal", "F.", "" ] ]
Symmetry transformations have been proven a bedrock tool for understanding the nature of particle interactions, formulating and testing fundamental theories. Based on the up to now unbroken CPT symmetry, the violation of the CP symmetry between matter and antimatter by weak interactions, discovered in the decay of kaon...
hep-ph/0209170
Ernest Ma
Ernest Ma (UC Riverside)
Theoretical Expectations for Rare and Forbidden Tau Decays
Talk at TAU 02 (Santa Cruz, CA)
eConf C0209101 (2002) WE01
10.1016/S0920-5632(03)80316-X
UCRHEP-T346 (September 2002)
hep-ph
null
Given the experimental evidence for $\nu_\mu - \nu_\tau$ oscillations, the existence of lepton flavor violation in $\tau$ decays is a theoretical certainty. In this brief review, I consider the connection between models of neutrino mass and the expected observability of some $\tau$ decays.
[ { "created": "Mon, 16 Sep 2002 15:16:39 GMT", "version": "v1" }, { "created": "Wed, 25 Sep 2002 15:44:51 GMT", "version": "v2" } ]
2009-11-07
[ [ "Ma", "Ernest", "", "UC Riverside" ] ]
Given the experimental evidence for $\nu_\mu - \nu_\tau$ oscillations, the existence of lepton flavor violation in $\tau$ decays is a theoretical certainty. In this brief review, I consider the connection between models of neutrino mass and the expected observability of some $\tau$ decays.
hep-ph/9709410
Peter Suranyi
P. Suranyi (University of Cincinnati)
Solution of gauge theories induced by fundamental representation scalars
12 pages, LaTeX
Phys. Rev. D 57, 5084 (1998)
10.1103/PhysRevD.57.5084
UCTP 105/97
hep-ph
null
Gauge theories induced by scalars in the fundamental representation of the $U(N_c)_{gauge}\times U(N_f)_{global}$ group are investigated in the large $N_c$ and $N_f$ limit. A master field is defined from bilinears of the scalar field following an Eguchi-Kawai type reduction of spacetime. The density function for the ...
[ { "created": "Fri, 19 Sep 1997 18:07:46 GMT", "version": "v1" } ]
2016-08-25
[ [ "Suranyi", "P.", "", "University of Cincinnati" ] ]
Gauge theories induced by scalars in the fundamental representation of the $U(N_c)_{gauge}\times U(N_f)_{global}$ group are investigated in the large $N_c$ and $N_f$ limit. A master field is defined from bilinears of the scalar field following an Eguchi-Kawai type reduction of spacetime. The density function for the ma...
1407.3331
Tirthabir Biswas
Tirthabir Biswas and Nobuchika Okada
Towards LHC Physics with Non-local Standard Model
Changes made to be consistent with the journal version
Nucl.Phys. B898 (2015) 113-131
10.1016/j.nuclphysb.2015.06.023
null
hep-ph gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We take a few steps towards constructing a string-inspired nonlocal extension of the Standard Model. We start by illustrating how quantum loop calculations can be performed in nonlocal scalar field theory. In particular, we show the potential to address the hierarchy problem in the nonlocal framework. Next, we constr...
[ { "created": "Sat, 12 Jul 2014 01:12:07 GMT", "version": "v1" }, { "created": "Thu, 24 Jul 2014 14:23:02 GMT", "version": "v2" }, { "created": "Thu, 10 Sep 2015 19:49:02 GMT", "version": "v3" } ]
2015-12-09
[ [ "Biswas", "Tirthabir", "" ], [ "Okada", "Nobuchika", "" ] ]
We take a few steps towards constructing a string-inspired nonlocal extension of the Standard Model. We start by illustrating how quantum loop calculations can be performed in nonlocal scalar field theory. In particular, we show the potential to address the hierarchy problem in the nonlocal framework. Next, we construc...
hep-ph/9601343
null
F. Buccella, M. Lusignoli and A. Pugliese
Charm nonleptonic decays and final state interactions
14 pages, no figures, plain TeX, uses harvmac.tex and tables.tex
Phys.Lett.B379:249-256,1996
10.1016/0370-2693(96)00460-1
ROMA1 Preprint n. 1130/96, NAPOLI DSF-T-2/96
hep-ph
null
A global previous analysis of two-body nonleptonic decays of $D$ mesons has been extended to the decays involving light scalar mesons. The allowance for final state interaction also in nonresonant channels provides a fit of much improved quality and with less symmetry breaking in the axial charges. We give prediction...
[ { "created": "Fri, 26 Jan 1996 12:37:49 GMT", "version": "v1" } ]
2008-11-26
[ [ "Buccella", "F.", "" ], [ "Lusignoli", "M.", "" ], [ "Pugliese", "A.", "" ] ]
A global previous analysis of two-body nonleptonic decays of $D$ mesons has been extended to the decays involving light scalar mesons. The allowance for final state interaction also in nonresonant channels provides a fit of much improved quality and with less symmetry breaking in the axial charges. We give predictions ...
hep-ph/0001134
Martin Beneke
M. Beneke (CERN, Aachen)
Applications of QCD
latex, 26 pages
Int.J.Mod.Phys. A15S1 (2000) 632-656; eConf C990809 (2000) 632-656
10.1142/S0217751X00005358
CERN-TH/99-414
hep-ph
null
Talk given at XIXth International Symposium on Lepton and Photon Interactions at High Energies (LP 99), Stanford, California, 9-14 August 1999.
[ { "created": "Fri, 14 Jan 2000 17:47:52 GMT", "version": "v1" } ]
2009-10-31
[ [ "Beneke", "M.", "", "CERN, Aachen" ] ]
Talk given at XIXth International Symposium on Lepton and Photon Interactions at High Energies (LP 99), Stanford, California, 9-14 August 1999.
hep-ph/0201062
Francesco Paccanoni
F. Paccanoni
Pomeron exchange and t-dependence of the scattering amplitude
21 pages, 1 figure
Eur.Phys.J.direct C4:17,2002
null
DFPD 02/TH/1
hep-ph
null
Constraints on the t-dependence of the hadronic scattering amplitude at asymptotic energies are derived by considering the exchange of the Pomeron, as a Regge pole, between off-shell gluons. Covariant reggeization ensures pure spin alpha exchange, where alpha is the Regge trajectory of the Pomeron. The structure of t...
[ { "created": "Wed, 9 Jan 2002 11:07:36 GMT", "version": "v1" } ]
2011-03-23
[ [ "Paccanoni", "F.", "" ] ]
Constraints on the t-dependence of the hadronic scattering amplitude at asymptotic energies are derived by considering the exchange of the Pomeron, as a Regge pole, between off-shell gluons. Covariant reggeization ensures pure spin alpha exchange, where alpha is the Regge trajectory of the Pomeron. The structure of the...
1308.0598
Stefano Forte
The NNPDF Collaboration: Richard D. Ball, Valerio Bertone, Stefano Carrazza, Luigi Del Debbio, Stefano Forte, Alberto Guffanti, Nathan P. Hartland, Juan Rojo
Parton distributions with QED corrections
38 pages, 27 figures. Final version, to be published in Nucl. Phys. B. Several corrections and improvements, in particular Fig.5 added, Fig.2, Fig. 6 and Fig.8 improved, Fig.21 corrected
null
10.1016/j.nuclphysb.2013.10.010
Edinburgh 2013/20, IFUM-1014-FT, FR-PHENO-2013-008, CERN-PH-TH/2013-075
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a set of parton distribution functions (PDFs), based on the NNPDF2.3 set, which includes a photon PDF, and QED contributions to parton evolution. We describe the implementation of the combined QCD+QED evolution in the NNPDF framework. We then provide a first determination of the full set of PDFs based on d...
[ { "created": "Fri, 2 Aug 2013 20:00:02 GMT", "version": "v1" }, { "created": "Mon, 4 Nov 2013 17:06:33 GMT", "version": "v2" } ]
2021-01-13
[ [ "The NNPDF Collaboration", "", "" ], [ "Ball", "Richard D.", "" ], [ "Bertone", "Valerio", "" ], [ "Carrazza", "Stefano", "" ], [ "Del Debbio", "Luigi", "" ], [ "Forte", "Stefano", "" ], [ "Guffanti", "Alberto"...
We present a set of parton distribution functions (PDFs), based on the NNPDF2.3 set, which includes a photon PDF, and QED contributions to parton evolution. We describe the implementation of the combined QCD+QED evolution in the NNPDF framework. We then provide a first determination of the full set of PDFs based on dee...
2002.03759
Robin Ekman
Robin Ekman, Anton Ilderton
Back-reaction in strong field QED: a toy model
9 pages, 6 figures. v2: typo corrected
Phys. Rev. D 101, 056022 (2020)
10.1103/PhysRevD.101.056022
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
As a toy model for QED in strong background fields, we consider the impact of back-reaction and loop effects on scattering processes in quantum optics. We show that neglecting back-reaction misses qualitative and quantitative features of strong-field physics. We are able to study an analogue of the Narozhny-Ritus con...
[ { "created": "Mon, 10 Feb 2020 14:07:57 GMT", "version": "v1" }, { "created": "Thu, 13 Feb 2020 14:16:53 GMT", "version": "v2" } ]
2020-04-08
[ [ "Ekman", "Robin", "" ], [ "Ilderton", "Anton", "" ] ]
As a toy model for QED in strong background fields, we consider the impact of back-reaction and loop effects on scattering processes in quantum optics. We show that neglecting back-reaction misses qualitative and quantitative features of strong-field physics. We are able to study an analogue of the Narozhny-Ritus conje...
hep-ph/0601198
Stephen Parke
Hiroshi Nunokawa, Stephen Parke and Renata Zukanovich Funchal
What Fraction of Boron-8 Solar Neutrinos arrive at the Earth as a nu_2 mass eigenstate?
23 pages, 8 postscript figures, latex. Dedicated to the memory of John Bahcall who championed solar neutrinos for many lonely years
Phys.Rev.D74:013006,2006
10.1103/PhysRevD.74.013006
Fermilab-Pub-05-049-T
hep-ph astro-ph hep-ex nucl-ex
null
We calculate the fraction of B^8 solar neutrinos that arrive at the Earth as a nu_2 mass eigenstate as a function of the neutrino energy. Weighting this fraction with the B^8 neutrino energy spectrum and the energy dependence of the cross section for the charged current interaction on deuteron with a threshold on the...
[ { "created": "Tue, 24 Jan 2006 19:35:15 GMT", "version": "v1" } ]
2008-11-26
[ [ "Nunokawa", "Hiroshi", "" ], [ "Parke", "Stephen", "" ], [ "Funchal", "Renata Zukanovich", "" ] ]
We calculate the fraction of B^8 solar neutrinos that arrive at the Earth as a nu_2 mass eigenstate as a function of the neutrino energy. Weighting this fraction with the B^8 neutrino energy spectrum and the energy dependence of the cross section for the charged current interaction on deuteron with a threshold on the k...
1811.11048
Charanjit Khosa
Genevieve Belanger, Rohini M. Godbole, Charanjit K. Khosa and Saurabh D. Rindani
Probing CP nature of a mediator in associated production of dark matter with single top quark
5 pages, 5 figures, proceedings for the 11^\mathrm{th}$ International Workshop on Top Quark Physics, Bad Neuenahr, Germany, September 16--21, 2018
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider associated production of dark matter with single top quark, in a simplified dark matter model with spin-0 mediators. The produced top quark is polarized and the polarization depends on the CP of the mediator. We calculate both the cross-section and top polarization for these processes. We compute angular ...
[ { "created": "Tue, 27 Nov 2018 15:17:15 GMT", "version": "v1" } ]
2018-11-28
[ [ "Belanger", "Genevieve", "" ], [ "Godbole", "Rohini M.", "" ], [ "Khosa", "Charanjit K.", "" ], [ "Rindani", "Saurabh D.", "" ] ]
We consider associated production of dark matter with single top quark, in a simplified dark matter model with spin-0 mediators. The produced top quark is polarized and the polarization depends on the CP of the mediator. We calculate both the cross-section and top polarization for these processes. We compute angular as...
1810.04518
D. J. Miller
John McDowall, David J Miller
High Scale Boundary Conditions in Models with Two Higgs Doublets
25 pages, 13 figures (25 plots); v3: version accepted for publication
Phys. Rev. D 100, 015018 (2019)
10.1103/PhysRevD.100.015018
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate high scale boundary conditions on the quartic Higgs-couplings and their $\beta$-functions in the Type-II Two Higgs Doublet Model and the Inert Doublet Model. These conditions are associated with two possible UV physics scenarios: the Multiple Point Principle, in which the potential exhibits a second mi...
[ { "created": "Wed, 10 Oct 2018 13:27:34 GMT", "version": "v1" }, { "created": "Thu, 25 Oct 2018 14:50:10 GMT", "version": "v2" }, { "created": "Wed, 19 Jun 2019 11:15:37 GMT", "version": "v3" } ]
2019-07-24
[ [ "McDowall", "John", "" ], [ "Miller", "David J", "" ] ]
We investigate high scale boundary conditions on the quartic Higgs-couplings and their $\beta$-functions in the Type-II Two Higgs Doublet Model and the Inert Doublet Model. These conditions are associated with two possible UV physics scenarios: the Multiple Point Principle, in which the potential exhibits a second mini...
hep-ph/9803396
null
M. Napsuciale (U. of Guanajuato, Mexico)
Scalar meson masses and mixing angle in a U(3)XU(3) Linear Sigma Model
24 pages, 3 figures. Scalar mesons exchange contributions to CHPT LEC included. New mixing angle and mass relations added. Scalar meson mixing angle and sigma mass corrected. 1/N counting rules for OZI violating terms reconsidered. New references added
null
null
IFUG-98-01
hep-ph
null
Meson properties are considered within a U(3)\times U(3) Linear Sigma Model(LSM). The importance of the U_A(1)-breaking term and the OZI rule violating term in the generation of meson masses and mixing angles is stressed. The LSM parameters are fitted to the pseudoscalar meson spectrum thus giving predictions for sca...
[ { "created": "Fri, 20 Mar 1998 03:12:39 GMT", "version": "v1" }, { "created": "Wed, 12 Aug 1998 21:36:52 GMT", "version": "v2" } ]
2007-05-23
[ [ "Napsuciale", "M.", "", "U. of Guanajuato, Mexico" ] ]
Meson properties are considered within a U(3)\times U(3) Linear Sigma Model(LSM). The importance of the U_A(1)-breaking term and the OZI rule violating term in the generation of meson masses and mixing angles is stressed. The LSM parameters are fitted to the pseudoscalar meson spectrum thus giving predictions for scala...
hep-ph/9402342
null
Andrei L. Kataev and Aleksander V. Sidorov
The Jacobi Polinomials QCD Analysis of the CCFR Data for xF_3 and the Q^2-Dependence of the Gross-Llewllyn Smith Sum Rule
LATEX, 14 pages, 2 Figures can be obtained by FAX after the request, CERN-TH.7160/94 and JINR E2-94-45
Phys.Lett. B331 (1994) 179-186
10.1016/0370-2693(94)90961-X
null
hep-ph
null
We present the results of our QCD analysis of the recent CCFR data for the structure function $xF_3 (x,Q^2)$ of the deep-inelastic neutrino--nucleon scattering. The analysis is based on the Jacobi polynomials expansion of the structure functions. The concrete results for the parameter $\Lambda_{\overline {MS}}^{(4)}$...
[ { "created": "Wed, 23 Feb 1994 15:34:10 GMT", "version": "v1" } ]
2009-10-28
[ [ "Kataev", "Andrei L.", "" ], [ "Sidorov", "Aleksander V.", "" ] ]
We present the results of our QCD analysis of the recent CCFR data for the structure function $xF_3 (x,Q^2)$ of the deep-inelastic neutrino--nucleon scattering. The analysis is based on the Jacobi polynomials expansion of the structure functions. The concrete results for the parameter $\Lambda_{\overline {MS}}^{(4)}$ a...
hep-ph/0307187
Kiyoshi Shiraishi
Yoshinori Cho, Nahomi Kan, Kenji Sakamoto and Kiyoshi Shiraishi (Yamaguchi U.)
One-loop finite potential for N-2 scalars from N quantum fields
11pages, two eps figures. RevTeX4
null
null
Guchi-TP-018
hep-ph hep-th math-ph math.MP
null
We study the one-loop effective potential induced from quantum fluctuation of a finite number of fields. A series expansion in terms of the modified Bessel functions is useful to evaluate the one-loop effective potential. We find that at most $N-2$ scalars parameterize the one-loop finite potential and the explicit p...
[ { "created": "Tue, 15 Jul 2003 02:47:15 GMT", "version": "v1" } ]
2007-05-23
[ [ "Cho", "Yoshinori", "", "Yamaguchi U." ], [ "Kan", "Nahomi", "", "Yamaguchi U." ], [ "Sakamoto", "Kenji", "", "Yamaguchi U." ], [ "Shiraishi", "Kiyoshi", "", "Yamaguchi U." ] ]
We study the one-loop effective potential induced from quantum fluctuation of a finite number of fields. A series expansion in terms of the modified Bessel functions is useful to evaluate the one-loop effective potential. We find that at most $N-2$ scalars parameterize the one-loop finite potential and the explicit par...
0801.0663
Sannino Francesco
Roshan Foadi and Francesco Sannino (University of Southern Denmark)
WW Scattering in Walking Technicolor
2 Columns RevTeX, 10 pages, 9 Figures
Phys.Rev.D78:037701,2008
10.1103/PhysRevD.78.037701
null
hep-ph
null
We analyze the WW scattering in scenarios of dynamical electroweak symmetry breaking of walking technicolor type. We show that in these theories there are regions of the parameters space allowed by the electroweak precision data, in which unitarity violation is delayed at tree level up to around 3-4 TeV without the i...
[ { "created": "Fri, 4 Jan 2008 13:43:19 GMT", "version": "v1" } ]
2008-11-26
[ [ "Foadi", "Roshan", "", "University of Southern Denmark" ], [ "Sannino", "Francesco", "", "University of Southern Denmark" ] ]
We analyze the WW scattering in scenarios of dynamical electroweak symmetry breaking of walking technicolor type. We show that in these theories there are regions of the parameters space allowed by the electroweak precision data, in which unitarity violation is delayed at tree level up to around 3-4 TeV without the inc...
1209.5650
Giulia Ricciardi
Giulia Ricciardi
Semileptonic B and D decays-latest developments
13 pages, no figures. Invited talk at Flavor Physics and CP Violation (FPCP 2012), USTC, Hefei, China, May 21-25, 2012
eConf C120521 (2012) 48
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Semileptonic B and D decays are on a well deserved podium to extract CKM matrix elements, to validate theoretical tools and, more recently, even to look for hints of new physics. Here we review the latest updates.
[ { "created": "Tue, 25 Sep 2012 15:46:20 GMT", "version": "v1" }, { "created": "Wed, 17 Oct 2012 12:43:17 GMT", "version": "v2" } ]
2013-09-19
[ [ "Ricciardi", "Giulia", "" ] ]
Semileptonic B and D decays are on a well deserved podium to extract CKM matrix elements, to validate theoretical tools and, more recently, even to look for hints of new physics. Here we review the latest updates.
hep-ph/9803301
Igor Halperin
Igor Halperin and Ariel Zhitnitsky (Univ. of British Columbia)
Anomalous Effective Lagrangian and Theta Dependence in QCD at Finite N_c
Changes in the presentation and discussion, formulas are unchanged. Latex, 7 pages, no figures
Phys.Rev.Lett. 81 (1998) 4071-4074
10.1103/PhysRevLett.81.4071
null
hep-ph hep-th
null
We generalize the large N_c Di Vecchia-Veneziano-Witten (VVW) effective chiral Lagrangian to the case of finite N_c by constructing the anomalous effective Lagrangian for QCD. The latter is similar to its SUSY counterpart, and has a holomorphic structure. The VVW construction is then recovered, along with 1/N_c corre...
[ { "created": "Wed, 11 Mar 1998 02:58:44 GMT", "version": "v1" }, { "created": "Tue, 9 Jun 1998 00:19:18 GMT", "version": "v2" } ]
2009-10-31
[ [ "Halperin", "Igor", "", "Univ. of British Columbia" ], [ "Zhitnitsky", "Ariel", "", "Univ. of British Columbia" ] ]
We generalize the large N_c Di Vecchia-Veneziano-Witten (VVW) effective chiral Lagrangian to the case of finite N_c by constructing the anomalous effective Lagrangian for QCD. The latter is similar to its SUSY counterpart, and has a holomorphic structure. The VVW construction is then recovered, along with 1/N_c correct...
0908.2020
Krzysztof Piotrzkowski
J. de Favereau de Jeneret, V. Lemaitre, Y. Liu, S. Ovyn, T. Pierzchala, K. Piotrzkowski, X. Rouby, N. Schul and M. Vander Donckt
High energy photon interactions at the LHC
17 pages, 16 tables and 14 figures
null
null
CP3-09-37
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Experimental prospects for studying high-energy photon-photon and photon-proton interactions at the CERN Large Hadron Collider (LHC) are discussed. Cross sections are calculated for many electroweak and beyond the Standard Model processes. Selection strategies based on photon interaction tagging techniques are studie...
[ { "created": "Fri, 14 Aug 2009 09:31:24 GMT", "version": "v1" } ]
2009-08-21
[ [ "de Jeneret", "J. de Favereau", "" ], [ "Lemaitre", "V.", "" ], [ "Liu", "Y.", "" ], [ "Ovyn", "S.", "" ], [ "Pierzchala", "T.", "" ], [ "Piotrzkowski", "K.", "" ], [ "Rouby", "X.", "" ], [ "Schul",...
Experimental prospects for studying high-energy photon-photon and photon-proton interactions at the CERN Large Hadron Collider (LHC) are discussed. Cross sections are calculated for many electroweak and beyond the Standard Model processes. Selection strategies based on photon interaction tagging techniques are studied....
1704.05558
Romulo Rougemont
Romulo Rougemont (IIP, Brazil), Renato Critelli (Sao Paulo U.), Jacquelyn Noronha-Hostler (Houston U.), Jorge Noronha (Sao Paulo U.), Claudia Ratti (Houston U.)
Dynamical vs. equilibrium properties of the QCD phase transition: a holographic perspective
20 pages, 19 figures, version accepted for publication in Physical Review D
Phys. Rev. D 96, 014032 (2017)
10.1103/PhysRevD.96.014032
null
hep-ph hep-th nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We employ an Einstein-Maxwell-Dilaton (EMD) holographic model, which is known to be in good agreement with lattice results for the QCD equation of state with $(2+1)$ flavors and physical quark masses, to investigate the temperature and baryon chemical potential dependence of the susceptibilities, conductivities, and ...
[ { "created": "Tue, 18 Apr 2017 22:47:21 GMT", "version": "v1" }, { "created": "Mon, 17 Jul 2017 17:08:39 GMT", "version": "v2" } ]
2017-08-01
[ [ "Rougemont", "Romulo", "", "IIP, Brazil" ], [ "Critelli", "Renato", "", "Sao Paulo U." ], [ "Noronha-Hostler", "Jacquelyn", "", "Houston U." ], [ "Noronha", "Jorge", "", "Sao Paulo U." ], [ "Ratti", "Claudia", "", "Hou...
We employ an Einstein-Maxwell-Dilaton (EMD) holographic model, which is known to be in good agreement with lattice results for the QCD equation of state with $(2+1)$ flavors and physical quark masses, to investigate the temperature and baryon chemical potential dependence of the susceptibilities, conductivities, and di...
hep-ph/0612060
Koichi Hamaguchi
Koichi Hamaguchi, Mihoko M. Nojiri, and Albert de Roeck
Prospects to study a long-lived charged next lightest supersymmetric particle at the LHC
39 pages, 23 figures
JHEP 0703:046,2007
10.1088/1126-6708/2007/03/046
UT-06-23, KEK-TH-1119
hep-ph
null
If the scalar tau $\stau$ is the next lightest supersymmetric particle and decays into a gravitino ($\gravitino$) being the lightest supersymmetric particle, it will have generally a very long lifetime. In this paper, we investigate the possibility to study the decay of such a long lived scalar tau at the LHC. If we ...
[ { "created": "Wed, 6 Dec 2006 08:28:36 GMT", "version": "v1" } ]
2010-10-27
[ [ "Hamaguchi", "Koichi", "" ], [ "Nojiri", "Mihoko M.", "" ], [ "de Roeck", "Albert", "" ] ]
If the scalar tau $\stau$ is the next lightest supersymmetric particle and decays into a gravitino ($\gravitino$) being the lightest supersymmetric particle, it will have generally a very long lifetime. In this paper, we investigate the possibility to study the decay of such a long lived scalar tau at the LHC. If we ca...
1504.01260
Xing-Gang Wu
Hong-Hao Ma, Xing-Gang Wu, Yang Ma, Stanley J. Brodsky and Matin Mojaza
Setting the Renormalization Scale in pQCD: Comparisons of the Principle of Maximum Conformality with the Sequential Extended Brodsky-Lepage-Mackenzie Approach
16 pages, 2 figures
Phys. Rev. D 91, 094028 (2015)
10.1103/PhysRevD.91.094028
SLAC-PUB-16236, NORDITA-2015-39
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A key problem in making precise perturbative QCD (pQCD) predictions is how to set the renormalization scale of the running coupling unambiguously at each finite order. The elimination of the uncertainty in setting the renormalization scale in pQCD will greatly increase the precision of collider tests of the Standard ...
[ { "created": "Mon, 6 Apr 2015 10:59:13 GMT", "version": "v1" } ]
2015-06-03
[ [ "Ma", "Hong-Hao", "" ], [ "Wu", "Xing-Gang", "" ], [ "Ma", "Yang", "" ], [ "Brodsky", "Stanley J.", "" ], [ "Mojaza", "Matin", "" ] ]
A key problem in making precise perturbative QCD (pQCD) predictions is how to set the renormalization scale of the running coupling unambiguously at each finite order. The elimination of the uncertainty in setting the renormalization scale in pQCD will greatly increase the precision of collider tests of the Standard Mo...
hep-ph/0411029
Stanley J. Brodsky
S. J. Brodsky (SLAC)
Novel Aspects of QCD in Leptoproduction
Presented at the conference, Electron-Nucleus Scattering VIII, Marciana Marina, Isola d'Elba, June 21-25, 2004
Eur.Phys.J.A24s1:129-135,2005
10.1140/epjad/s2005-05-023-9
SLAC-PUB-10778
hep-ph
null
I review several topics in electroproduction which test fundamental aspects of QCD. These include the role of final-state interactions in producing diffractive leptoproduction processes, the shadowing of nuclear structure functions, and target-spin asymmetries. The antishadowing of nuclear structure functions is show...
[ { "created": "Tue, 2 Nov 2004 03:13:32 GMT", "version": "v1" } ]
2009-09-11
[ [ "Brodsky", "S. J.", "", "SLAC" ] ]
I review several topics in electroproduction which test fundamental aspects of QCD. These include the role of final-state interactions in producing diffractive leptoproduction processes, the shadowing of nuclear structure functions, and target-spin asymmetries. The antishadowing of nuclear structure functions is shown ...
1107.2083
Bilal Masud
M. Imran Jamil, Bilal Masud, Faisal Akram and S. M. Sohail Gilani
$\bar{D}^{0}D^{0*}$ $(D^{0}\bar{D}^{0*})$ System in QCD-Improved Many Body Potential
It is to be published in Chinese Physics C
Chin. Phys. C, 2017, 41(1): 013103
10.1088/1674-1137/41/1/013103
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
For a system of current interest (composed of charm, anticharm quarks and a pair of light ones), we show trends in phenomenological implications of QCD-based improvements to a simple quark model treatment. We employ resonating group method to render this difficult four-body problem manageable. We use a quadratic conf...
[ { "created": "Mon, 11 Jul 2011 18:30:48 GMT", "version": "v1" }, { "created": "Wed, 9 Apr 2014 16:38:22 GMT", "version": "v2" }, { "created": "Thu, 18 Jun 2015 19:20:25 GMT", "version": "v3" }, { "created": "Sat, 26 Dec 2015 07:05:06 GMT", "version": "v4" }, { "cr...
2016-12-13
[ [ "Jamil", "M. Imran", "" ], [ "Masud", "Bilal", "" ], [ "Akram", "Faisal", "" ], [ "Gilani", "S. M. Sohail", "" ] ]
For a system of current interest (composed of charm, anticharm quarks and a pair of light ones), we show trends in phenomenological implications of QCD-based improvements to a simple quark model treatment. We employ resonating group method to render this difficult four-body problem manageable. We use a quadratic confin...
1404.3471
Masatoshi Yamada
Ken-Ichi Aoki, Daisuke Sato and Masatoshi Yamada
Analysis of the Dynamical Chiral Symmetry Breaking in QCD at Finite Temperature and Density using the Non-Perturbative Renormalization Group
5 pages, 4 figures, contribution to YITP-W-13-13 TQFT, 26-28 Aug. 2013, Kyoto University
Soryushiron Kenkyu 17 (2014) 2
null
KANAZAWA-14-03
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze the Nambu--Jona-Lasinio model which is a chiral effective model of QCD by using the non-perturbative renormalization group at finite temperature and finite density. We discuss the chiral phase diagram in the model. We include the large-$N$ non-leading contribution in the beta function and discuss its effec...
[ { "created": "Mon, 14 Apr 2014 06:55:07 GMT", "version": "v1" } ]
2018-12-21
[ [ "Aoki", "Ken-Ichi", "" ], [ "Sato", "Daisuke", "" ], [ "Yamada", "Masatoshi", "" ] ]
We analyze the Nambu--Jona-Lasinio model which is a chiral effective model of QCD by using the non-perturbative renormalization group at finite temperature and finite density. We discuss the chiral phase diagram in the model. We include the large-$N$ non-leading contribution in the beta function and discuss its effects...
1605.06506
Alexander Friedland
John F. Cherry (Virginia Tech.), Alexander Friedland (SLAC), Ian M. Shoemaker (Penn State U.)
Short-baseline neutrino oscillations, Planck, and IceCube
6 pages, 3 figures
null
null
SLAC-PUB-16517
hep-ph astro-ph.CO astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We examine a framework with light new physics, which couples to the Standard Model only via neutrino mixing. Taking the hints from the short-baseline anomalies seriously and combining them with modern cosmological data and recent IceCube measurements, we obtain surprisingly effective constraints on the hidden force: ...
[ { "created": "Fri, 20 May 2016 20:00:03 GMT", "version": "v1" } ]
2016-05-24
[ [ "Cherry", "John F.", "", "Virginia Tech." ], [ "Friedland", "Alexander", "", "SLAC" ], [ "Shoemaker", "Ian M.", "", "Penn State U." ] ]
We examine a framework with light new physics, which couples to the Standard Model only via neutrino mixing. Taking the hints from the short-baseline anomalies seriously and combining them with modern cosmological data and recent IceCube measurements, we obtain surprisingly effective constraints on the hidden force: ke...
hep-ph/0212189
Wolfgang Ochs
Matthew A. Buican, Valery A. Khoze and Wolfgang Ochs (MPI Munich/Univ. Durham)
Angular Distribution of Particle Flows and Perturbative QCD Predictions
14 pages, 4 Figs., more details of calculation in sect. 2.1
Eur.Phys.J.C28:313-319,2003
10.1140/epjc/s2003-01175-7
MPI-PhT/02-2002-78, IPPP/02/80; DCPT/02/160
hep-ph
null
We discuss the predictions of perturbative QCD for angular flows of final state particles in two and three jet events including their cms energy and jet resolution (y_{cut}) dependence. The simple analytical formulae for gluon bremsstrahlung from primary partons, modified for gluon cascading, reproduce the main featu...
[ { "created": "Fri, 13 Dec 2002 13:01:56 GMT", "version": "v1" }, { "created": "Wed, 19 Feb 2003 16:25:33 GMT", "version": "v2" } ]
2011-09-13
[ [ "Buican", "Matthew A.", "", "MPI Munich/Univ.\n Durham" ], [ "Khoze", "Valery A.", "", "MPI Munich/Univ.\n Durham" ], [ "Ochs", "Wolfgang", "", "MPI Munich/Univ.\n Durham" ] ]
We discuss the predictions of perturbative QCD for angular flows of final state particles in two and three jet events including their cms energy and jet resolution (y_{cut}) dependence. The simple analytical formulae for gluon bremsstrahlung from primary partons, modified for gluon cascading, reproduce the main feature...
1406.1944
Jian-Hua Gao
Jian-Hua Gao, Bin Qi, Shou-Yu Wang
Vorticity and magnetic field production in relativistic ideal fluids
13 pages, published version in PRD
Phys. Rev. D 90, 083001 (2014)
10.1103/PhysRevD.90.083001
null
hep-ph astro-ph.CO nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the framework of relativistic ideal hydrodynamics, we study the production mechanism for vorticity and magnetic field in relativistic ideal fluids. It is demonstrated that in the uncharged fluids the thermal vorticity will always satisfy the Kelvin's theorem and the circulation must be conserved. However, in the c...
[ { "created": "Sun, 8 Jun 2014 03:44:30 GMT", "version": "v1" }, { "created": "Mon, 26 Jan 2015 07:40:05 GMT", "version": "v2" } ]
2015-01-27
[ [ "Gao", "Jian-Hua", "" ], [ "Qi", "Bin", "" ], [ "Wang", "Shou-Yu", "" ] ]
In the framework of relativistic ideal hydrodynamics, we study the production mechanism for vorticity and magnetic field in relativistic ideal fluids. It is demonstrated that in the uncharged fluids the thermal vorticity will always satisfy the Kelvin's theorem and the circulation must be conserved. However, in the cha...
0809.0781
Shu Luo
Shu Luo, Zhi-zhong Xing, Xin Li
Generic Friedberg-Lee Symmetry of Dirac Neutrinos
RevTex4 10 pages, 1 figure
Phys.Rev.D78:117301,2008
10.1103/PhysRevD.78.117301
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We write out the generic Dirac neutrino mass operator which possesses the Friedberg-Lee (FL) symmetry and find that its corresponding neutrino mass matrix is asymmetric. Following a simple way to break the FL symmetry, we calculate the neutrino mass eigenvalues and show that the resultant neutrino mixing pattern is n...
[ { "created": "Thu, 4 Sep 2008 09:51:17 GMT", "version": "v1" } ]
2008-12-30
[ [ "Luo", "Shu", "" ], [ "Xing", "Zhi-zhong", "" ], [ "Li", "Xin", "" ] ]
We write out the generic Dirac neutrino mass operator which possesses the Friedberg-Lee (FL) symmetry and find that its corresponding neutrino mass matrix is asymmetric. Following a simple way to break the FL symmetry, we calculate the neutrino mass eigenvalues and show that the resultant neutrino mixing pattern is nea...
2012.02799
Juan Carlos Vasquez Carmona
Michael J. Ramsey-Musolf and Juan Carlos Vasquez
Left-right symmetry and electric dipole moments. A global analysis
8 pages, 5 figures
null
10.1016/j.physletb.2021.136136
ACFI-T20-17
hep-ph nucl-th
http://creativecommons.org/licenses/by/4.0/
We perform a global fit using results of searches for electric dipole moments (EDM) of diamagnetic systems within the context of the minimal left-right symmetric model. In this way, we disentangle the new "left-right" electroweak and $\bar{\theta}$ contributions that cannot be separated using a single EDM system. Alt...
[ { "created": "Fri, 4 Dec 2020 19:00:02 GMT", "version": "v1" } ]
2021-02-17
[ [ "Ramsey-Musolf", "Michael J.", "" ], [ "Vasquez", "Juan Carlos", "" ] ]
We perform a global fit using results of searches for electric dipole moments (EDM) of diamagnetic systems within the context of the minimal left-right symmetric model. In this way, we disentangle the new "left-right" electroweak and $\bar{\theta}$ contributions that cannot be separated using a single EDM system. Altho...
hep-ph/9407389
Mariano Quiros
J.A. Casas, J.R. Espinosa, M. Quir\'os and A. Riotto
The Lightest Higgs Boson Mass in the Minimal Supersymmetric Standard Model
24 pages + 15 figures in one compressed uuencoded tarred postscript file (The figures can be obtained by e-mail from QUIROS@ROCA.CSIC.ES; also, the whole postscript file of the text including the figures can be obtained by ANONYMOUS FTP from ROCA.CSIC.ES (161.111.20.20) at the directory HEP the file being HIGGS...
Nucl.Phys.B436:3-29,1995; ERRATUM-ibid.B439:466-468,1995
10.1016/0550-3213(94)00508-C
null
hep-ph
null
We compute the upper bound on the mass of the lightest Higgs boson in the Minimal Supersymmetric Standard Model in a model-independent way, including leading (one-loop) and next-to-leading order (two-loop) radiative corrections. We find that (contrary to some recent claims) the two-loop corrections are negative with ...
[ { "created": "Wed, 27 Jul 1994 15:01:06 GMT", "version": "v1" } ]
2011-05-05
[ [ "Casas", "J. A.", "" ], [ "Espinosa", "J. R.", "" ], [ "Quirós", "M.", "" ], [ "Riotto", "A.", "" ] ]
We compute the upper bound on the mass of the lightest Higgs boson in the Minimal Supersymmetric Standard Model in a model-independent way, including leading (one-loop) and next-to-leading order (two-loop) radiative corrections. We find that (contrary to some recent claims) the two-loop corrections are negative with re...
2101.04630
Francesco Giovanni Celiberto
Francesco Giovanni Celiberto
3D tomography of the nucleon: transverse-momentum-dependent gluon distributions
5 pages, 1 figure, 106th National Congress of the Italian Physical Society (SIF), contribution selected by the Scientific Committee for Best Communications, paper submitted to Nuovo Cim. C; version published in Nuovo Cim. C
Nuovo Cim. C 44 (2021) 36
10.1393/ncc/i2021-21036-3
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We perform explorative analyses of the 3D gluon content of the proton via a study of (un)polarized twist-2 gluon TMDs, calculated in a spectator model for the parent nucleon. Our approach encodes a flexible parametrization for the spectator-mass density, suited to describe both moderate and small-$x$ effects. All the...
[ { "created": "Tue, 12 Jan 2021 17:32:55 GMT", "version": "v1" }, { "created": "Tue, 7 Sep 2021 10:56:09 GMT", "version": "v2" } ]
2021-09-08
[ [ "Celiberto", "Francesco Giovanni", "" ] ]
We perform explorative analyses of the 3D gluon content of the proton via a study of (un)polarized twist-2 gluon TMDs, calculated in a spectator model for the parent nucleon. Our approach encodes a flexible parametrization for the spectator-mass density, suited to describe both moderate and small-$x$ effects. All these...
1711.01235
Daniel de Florian
Daniel de Florian (ICAS-UNSAM)
Transversely polarized Drell-Yan asymmetry A_TT at NLO
14 pages, 8 figures, typo corrected
null
null
ICAS 027/17
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present the first fully differential next-to-leading order QCD calculation for lepton production in transversely polarized hadronic collisions, pp -> l X , where the lepton arises from the decay of an electroweak gauge boson. The calculation is implemented in the Monte-Carlo like code `CHE' that already includes t...
[ { "created": "Fri, 3 Nov 2017 16:48:57 GMT", "version": "v1" }, { "created": "Mon, 13 Nov 2017 23:16:21 GMT", "version": "v2" } ]
2017-11-15
[ [ "de Florian", "Daniel", "", "ICAS-UNSAM" ] ]
We present the first fully differential next-to-leading order QCD calculation for lepton production in transversely polarized hadronic collisions, pp -> l X , where the lepton arises from the decay of an electroweak gauge boson. The calculation is implemented in the Monte-Carlo like code `CHE' that already includes the...
1811.10429
Zhihua Gu
Zhi-Hua Gu, Hai-Bin Zhang
The four-propagator three-loop vacuum integral by the hypergeometry
19 pages, 1 figure
null
10.1088/1674-1137/43/8/083102
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Hypergeometric function method is proposed to calculate the scalar integrals of Feynman diagrams. For the scalar integral of three-loop vacuum diagram with four-propagator, we verify the equivalency of Feynman parametrization and the hypergeometric technique. The result can be described as generalized hypergeometric ...
[ { "created": "Fri, 23 Nov 2018 02:54:39 GMT", "version": "v1" }, { "created": "Tue, 27 Nov 2018 03:13:51 GMT", "version": "v2" }, { "created": "Thu, 3 Jan 2019 08:31:15 GMT", "version": "v3" } ]
2019-09-04
[ [ "Gu", "Zhi-Hua", "" ], [ "Zhang", "Hai-Bin", "" ] ]
Hypergeometric function method is proposed to calculate the scalar integrals of Feynman diagrams. For the scalar integral of three-loop vacuum diagram with four-propagator, we verify the equivalency of Feynman parametrization and the hypergeometric technique. The result can be described as generalized hypergeometric fu...
1601.04228
Abolfazl Mirjalili
R. Taghavi, A. Mirjalili
Extracting the QCD ${\Lambda _{\overline {MS} }}$ parameter in Drell-Yan Process using Collins-Sopper-Sterman approach
12 pages, 2 figures
Mod. Phys. Lett. A, Vol. 32, No. 10 (2017) 1750040
10.1142/S0217732317500407
null
hep-ph
http://creativecommons.org/publicdomain/zero/1.0/
In this work we directly fit the QCD dimensional transmutation parameter, ${\Lambda _{\overline {MS} }}$, to experimental data of Drell-Yan (DY) observables. For this purpose we first obtain the evolution of transverse momentum dependent parton distribution functions (TMDPDFs) up to the NNLO approximation based on Co...
[ { "created": "Sat, 16 Jan 2016 23:10:59 GMT", "version": "v1" } ]
2017-03-22
[ [ "Taghavi", "R.", "" ], [ "Mirjalili", "A.", "" ] ]
In this work we directly fit the QCD dimensional transmutation parameter, ${\Lambda _{\overline {MS} }}$, to experimental data of Drell-Yan (DY) observables. For this purpose we first obtain the evolution of transverse momentum dependent parton distribution functions (TMDPDFs) up to the NNLO approximation based on Coll...
hep-ph/0310067
Roberto Casalbuoni
R. Casalbuoni
Inhomogeneous Color Superconductivity
LaTex,20 pages, 6 figures. Talk at the International Workshop on QCD: QCD@Work 2003 - Conversano (Italy) 14-18 June 2003 (eConf C030614). Change in the CERN preprint number
null
null
CERN-TH/2003-178
hep-ph cond-mat.supr-con
null
We discuss the possibility that in finite density QCD an anisotropic phase is realized. This case might arise for quarks with different chemical potential and/or different masses. In this phase crystalline structures may be formed. We consider this possibility and we describe, in the context of an effective lagrangia...
[ { "created": "Mon, 6 Oct 2003 13:30:28 GMT", "version": "v1" }, { "created": "Tue, 7 Oct 2003 14:50:52 GMT", "version": "v2" } ]
2007-05-23
[ [ "Casalbuoni", "R.", "" ] ]
We discuss the possibility that in finite density QCD an anisotropic phase is realized. This case might arise for quarks with different chemical potential and/or different masses. In this phase crystalline structures may be formed. We consider this possibility and we describe, in the context of an effective lagrangian,...
hep-ph/9701283
Lee Jae Sik
Ji-Ho Jang, Jae Kwan Kim, and Jae Sik Lee
Constraints on the R-parity- and Lepton-Flavor-Violating Couplings from B0 Decats to Two Charged Leptons
Table is changed; version to appear in Phys. Rev. D
Phys. Rev. D 55, 7296 (1997)
10.1103/PhysRevD.55.7296
KAIST-TH 97/02
hep-ph
null
We derive the upper bounds on certain products of R-parity- and lepton-flavor-violating couplings from the decays of the neutral $B$ meson into two charged leptons. These modes of $B^0$ decays can constrain the product combinations of the couplings with one or more heavy generation indices. We find that most of these...
[ { "created": "Fri, 14 Jun 1996 16:43:55 GMT", "version": "v1" }, { "created": "Fri, 21 Jun 1996 08:13:25 GMT", "version": "v2" }, { "created": "Sat, 21 Sep 1996 11:13:09 GMT", "version": "v3" } ]
2016-08-24
[ [ "Jang", "Ji-Ho", "" ], [ "Kim", "Jae Kwan", "" ], [ "Lee", "Jae Sik", "" ] ]
We derive the upper bounds on certain products of R-parity- and lepton-flavor-violating couplings from the decays of the neutral $B$ meson into two charged leptons. These modes of $B^0$ decays can constrain the product combinations of the couplings with one or more heavy generation indices. We find that most of these b...
0812.4448
Sergey Alekhin
S. Alekhin, S. Kulagin, R. Petti
Determination of Strange Sea Distributions from Neutrino-Nucleon Deep Inelastic Scattering
15 pages
Phys.Lett.B675:433-440,2009
10.1016/j.physletb.2009.04.033
DESY 08-185, SFB/CPP-08-99
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present an analysis of the nucleon strange sea extracted from a global Parton Distribution Function fit including the neutrino and anti-neutrino dimuon data by the CCFR and NuTeV collaborations, the inclusive charged lepton-nucleon Deep Inelastic Scattering and Drell-Yan data. The (anti-)neutrino induced dimuon an...
[ { "created": "Tue, 23 Dec 2008 20:43:31 GMT", "version": "v1" } ]
2009-11-19
[ [ "Alekhin", "S.", "" ], [ "Kulagin", "S.", "" ], [ "Petti", "R.", "" ] ]
We present an analysis of the nucleon strange sea extracted from a global Parton Distribution Function fit including the neutrino and anti-neutrino dimuon data by the CCFR and NuTeV collaborations, the inclusive charged lepton-nucleon Deep Inelastic Scattering and Drell-Yan data. The (anti-)neutrino induced dimuon anal...
hep-ph/9611368
Cliff Burgess
C.P. Burgess and D. Michaud
Neutrino Propagation Through a Fluctuating Sun (The Talk)
6 pages including 2 figures, Latex, uses epsf.tex, Presented to Neutrino-96, Helsinki, June 1996
null
null
McGill-96/43
hep-ph astro-ph
null
We summarize a general formulation of particle propagation in fluctuating media, as applied to the description of neutrino propagation through the sun. It contains the familiar MSW effective hamiltonian, plus corrections which describe neutrino interactions with fluctuations in the medium. An estimate of the size of ...
[ { "created": "Tue, 19 Nov 1996 20:29:53 GMT", "version": "v1" } ]
2007-05-23
[ [ "Burgess", "C. P.", "" ], [ "Michaud", "D.", "" ] ]
We summarize a general formulation of particle propagation in fluctuating media, as applied to the description of neutrino propagation through the sun. It contains the familiar MSW effective hamiltonian, plus corrections which describe neutrino interactions with fluctuations in the medium. An estimate of the size of th...
hep-ph/9712465
David Bowser-Chao
Ali Abbasabaddi, David Bowser-Chao, Duane A. Dicus, and Wayne W. Repko
Probing Anomalous Higgs Coupling through mu+ mu- --> H gamma
6 pages, 4 figures, aipproc.sty. Talk presented by David Bowser-Chao at the Workshop on Physics at the First Muon Collider and the Front End of a Muon Collider, Fermilab, November 6-9, 1997
Proceedings of the "Workshop on Physics at the First Muon Collider and at the Front End of a Muon Collider", Fermilab, November 6-9, 1997
null
UICHEP-TH/97-17
hep-ph
null
The process mu+ mu- --> H gamma, though small compared to the resonance process, could be observable at proposed muon colliders, given expected integrated luminosities. The apparently leading diagrams occur at tree-level, and are proportional to the Higgs-muon coupling. We show, however, that the one-loop contributio...
[ { "created": "Fri, 19 Dec 1997 20:57:57 GMT", "version": "v1" } ]
2007-05-23
[ [ "Abbasabaddi", "Ali", "" ], [ "Bowser-Chao", "David", "" ], [ "Dicus", "Duane A.", "" ], [ "Repko", "Wayne W.", "" ] ]
The process mu+ mu- --> H gamma, though small compared to the resonance process, could be observable at proposed muon colliders, given expected integrated luminosities. The apparently leading diagrams occur at tree-level, and are proportional to the Higgs-muon coupling. We show, however, that the one-loop contribution ...
hep-ph/9602438
Jim Cline
P. Bamert, C.P. Burgess, J.M. Cline, D. London and E. Nardi
R_b and New Physics: A Comprehensive Analysis
60 pages, 8 figures, plain tex, uses epsf. Final version to appear in Phys. Rev. D; propgating sign error corrected in eqs. 78, 87, 88, 89, 98, and 107; results unchanged
Phys.Rev. D54 (1996) 4275-4300
10.1103/PhysRevD.54.4275
McGill-96/04, UdeM-GPP-TH-96-34, WIS-96/09/Feb-PH
hep-ph
null
We survey the implications for new physics of the discrepancy between the LEP measurement of $R_b$ and its Standard Model prediction. Two broad classes of models are considered: ($i$) those in which new $Z\bbar b$ couplings arise at tree level, through $Z$ or $b$-quark mixing with new particles, and ($ii$) those in w...
[ { "created": "Fri, 1 Mar 1996 00:19:15 GMT", "version": "v1" }, { "created": "Thu, 14 Mar 1996 15:03:31 GMT", "version": "v2" }, { "created": "Mon, 12 Aug 1996 14:43:46 GMT", "version": "v3" } ]
2009-10-28
[ [ "Bamert", "P.", "" ], [ "Burgess", "C. P.", "" ], [ "Cline", "J. M.", "" ], [ "London", "D.", "" ], [ "Nardi", "E.", "" ] ]
We survey the implications for new physics of the discrepancy between the LEP measurement of $R_b$ and its Standard Model prediction. Two broad classes of models are considered: ($i$) those in which new $Z\bbar b$ couplings arise at tree level, through $Z$ or $b$-quark mixing with new particles, and ($ii$) those in whi...
hep-ph/9506346
Taco Nieuwenhuis
Taco Nieuwenhuis and J. A. Tjon (Institute for Theoretical Physics, Utrecht, the Netherlands)
Bound state solutions of scalar QED_{2+1} for zero photon mass
LaTeX, 11 pages, 2 Postscript figures; uses `elsart.sty' and `epsf.sty' (both included with the figures in one uuencoded- compressed-tar-package); accepted for publication in Physics Letters B. (elsart12.sty now also included)
Phys.Lett. B355 (1995) 283-287
10.1016/0370-2693(95)00753-8
THU-95/16
hep-ph nucl-th
null
The Feynman-Schwinger representation is used to study the behavior of solutions of scalar QED in (2+1) dimensions. The limit of zero photon mass is seen to be smooth. The Bethe-Salpeter equation in the ladder approximation also exhibits this property. They clearly deviate from the behavior in the nonrelativistic limi...
[ { "created": "Fri, 16 Jun 1995 13:28:59 GMT", "version": "v1" }, { "created": "Mon, 19 Jun 1995 08:17:37 GMT", "version": "v2" } ]
2009-10-28
[ [ "Nieuwenhuis", "Taco", "", "Institute for Theoretical Physics,\n Utrecht, the Netherlands" ], [ "Tjon", "J. A.", "", "Institute for Theoretical Physics,\n Utrecht, the Netherlands" ] ]
The Feynman-Schwinger representation is used to study the behavior of solutions of scalar QED in (2+1) dimensions. The limit of zero photon mass is seen to be smooth. The Bethe-Salpeter equation in the ladder approximation also exhibits this property. They clearly deviate from the behavior in the nonrelativistic limit....
hep-ph/9810328
Joaquim Inacio da Silva Marcos
G.C. Branco, M.N. Rebelo and J.I. Silva-Marcos
Degenerate and Quasi Degenerate Majorana Neutrinos
9 pages
Phys.Rev.Lett. 82 (1999) 683-686
10.1103/PhysRevLett.82.683
null
hep-ph
null
We study mixing and CP violation of three left-handed Majorana neutrinos in the limit of exactly degenerate masses, identify the weak-basis invariant relevant for CP violation and show that the leptonic mixing matrix is parametrized only by two angles and one phase. After the lifting of the degeneracy, this parametri...
[ { "created": "Mon, 12 Oct 1998 14:40:32 GMT", "version": "v1" } ]
2009-10-31
[ [ "Branco", "G. C.", "" ], [ "Rebelo", "M. N.", "" ], [ "Silva-Marcos", "J. I.", "" ] ]
We study mixing and CP violation of three left-handed Majorana neutrinos in the limit of exactly degenerate masses, identify the weak-basis invariant relevant for CP violation and show that the leptonic mixing matrix is parametrized only by two angles and one phase. After the lifting of the degeneracy, this parametriza...
1703.06019
Eugenio Megias
Eugenio Megias, Mariano Quiros, Lindber Salas
Lepton-flavor universality violation in $R_K$ and $R_{D^{(*)}}$ from warped space
40 pages, 20 figures; v2: Extended version with analyses of non-observation of FUV in the mu/e sector, LFU tests in tau decays, B->K nu nu and B->K tau tau; v3: Revised version where radiative corrections to observables $\tau\to\ell \nu\nu$ and the $Z\bar\ell\ell$ couplings ($\ell=\tau,\mu$), as well as the LHC...
null
10.1007/JHEP07(2017)102
UAB-FT-773
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Some anomalies in the processes $b\to s\ell\ell$ ($\ell=\mu,e$) and $b\to c \ell\bar\nu_\ell$ ($\ell=\tau,\mu,e$), in particular in the observables $R_K$ and $R_{D^{(\ast)}}$, have been found by the BaBar, LHCb and Belle Collaborations, leading to a possible lepton flavor universality violation. If these anomalies we...
[ { "created": "Fri, 17 Mar 2017 14:07:24 GMT", "version": "v1" }, { "created": "Thu, 13 Apr 2017 09:40:13 GMT", "version": "v2" }, { "created": "Mon, 26 Jun 2017 17:29:11 GMT", "version": "v3" } ]
2017-09-13
[ [ "Megias", "Eugenio", "" ], [ "Quiros", "Mariano", "" ], [ "Salas", "Lindber", "" ] ]
Some anomalies in the processes $b\to s\ell\ell$ ($\ell=\mu,e$) and $b\to c \ell\bar\nu_\ell$ ($\ell=\tau,\mu,e$), in particular in the observables $R_K$ and $R_{D^{(\ast)}}$, have been found by the BaBar, LHCb and Belle Collaborations, leading to a possible lepton flavor universality violation. If these anomalies were...
hep-ph/9311378
Michelangelo Mangano
Michelangelo MANGANO
Recent Progress in the Theory of Heavy Flavor Production
Invited talk presented at the 9th Topical Workshop on Proton-Antiproton Collider Physics, 18-22 October 1993, Tsukuba, Japan. 11 pages in Latex + 10 figs (full postscript version including figures available for copying from 39198::DISK$ALEPH:[MLM]KEK93.PS), IFUP-TH 60/93
null
null
null
hep-ph
null
We review some recent results on heavy quark production in high energy hadronic collisions. We will discuss in particular the status of production cross sections for bottom quarks and charmonium states and will present some studies on the production of bottom and charm jets, at the inclusive level and in association ...
[ { "created": "Tue, 30 Nov 1993 16:58:57 GMT", "version": "v1" } ]
2009-09-25
[ [ "MANGANO", "Michelangelo", "" ] ]
We review some recent results on heavy quark production in high energy hadronic collisions. We will discuss in particular the status of production cross sections for bottom quarks and charmonium states and will present some studies on the production of bottom and charm jets, at the inclusive level and in association wi...
0809.4354
Tobias Hurth
Tobias Hurth (CERN, Slac)
New physics search in the LHCb era
Based on invited talks given at the Second Workshop on Theory, Phenomenology and Experiments in Heavy Flavour Physics, 16th-19th of June, Capri, Italy and at the Fifth International Workshop on the CKM Unitarity, Triangle, 9th-13th of September, Rome, Italy; 8 pages, 12 figures, latex, changes: typos in (8) and...
Nucl.Phys.Proc.Suppl.185:54-61,2008
10.1016/j.nuclphysbps.2008.10.007
CERN-PH-TH/2008-174, SLAC-PUB-13407
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present theoretical and experimental preparations for an indirect search for new physics using the rare decay $\bar B_d \to \bar K^* l^+ l^-$. We design new observables with very small theoretical uncertainties and good experimental resolution.
[ { "created": "Thu, 25 Sep 2008 10:16:51 GMT", "version": "v1" }, { "created": "Wed, 1 Oct 2008 19:47:33 GMT", "version": "v2" }, { "created": "Tue, 23 Dec 2008 09:39:25 GMT", "version": "v3" } ]
2009-01-30
[ [ "Hurth", "Tobias", "", "CERN, Slac" ] ]
We present theoretical and experimental preparations for an indirect search for new physics using the rare decay $\bar B_d \to \bar K^* l^+ l^-$. We design new observables with very small theoretical uncertainties and good experimental resolution.
hep-ph/0207094
Joerg Jaeckel
Joerg Jaeckel and Christof Wetterich
Flow Equations without Mean Field Ambiguity
New version to match the one published in PRD. New title (former title: Solving Mean Field Ambiguity by Flow Equations), added section IX and appendix B. More explanations in the introduction and conclusions. 16 pages, 6 figures and 3 tables uses revtex4
Phys.Rev. D68 (2003) 025020
10.1103/PhysRevD.68.025020
HD-THEP-02-23
hep-ph cond-mat nucl-th
null
We compare different methods used for non-perturbative calculations in strongly interacting fermionic systems. Mean field theory often shows a basic ambiguity related to the possibility to perform Fierz transformations. The results may then depend strongly on an unphysical parameter which reflects the choice of the m...
[ { "created": "Fri, 5 Jul 2002 19:34:07 GMT", "version": "v1" }, { "created": "Mon, 8 Sep 2003 11:00:01 GMT", "version": "v2" } ]
2009-11-07
[ [ "Jaeckel", "Joerg", "" ], [ "Wetterich", "Christof", "" ] ]
We compare different methods used for non-perturbative calculations in strongly interacting fermionic systems. Mean field theory often shows a basic ambiguity related to the possibility to perform Fierz transformations. The results may then depend strongly on an unphysical parameter which reflects the choice of the mea...
0802.1937
Banu Sahin
B. Sahin
Unparticle Effects on Top Quark Spin Correlations in e^+e^- Collision
13 pages, 6 figures
Balk.Phys. Lett. 18N5:28-37,2010
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the effects of scalar and vector unparticles on top quark spin correlations via the process $e^{+}e^{-}\to t \bar{t}$. In addition to the Standard Model diagrams, there is a new contribution to top-antitop quark production process mediated by unparticle in the s-channel. It is shown that scalar and vec...
[ { "created": "Wed, 13 Feb 2008 22:53:45 GMT", "version": "v1" } ]
2010-04-30
[ [ "Sahin", "B.", "" ] ]
We investigate the effects of scalar and vector unparticles on top quark spin correlations via the process $e^{+}e^{-}\to t \bar{t}$. In addition to the Standard Model diagrams, there is a new contribution to top-antitop quark production process mediated by unparticle in the s-channel. It is shown that scalar and vecto...
1302.5262
D. Ghilencea
D. M. Ghilencea
Fixing the EW scale in supersymmetric models after the Higgs discovery
18 pages; (v4: added text in Conclusions)
null
10.1016/j.nuclphysb.2013.07.024
CERN-PH-TH/2013-033
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
TeV-scale supersymmetry was originally introduced to solve the hierarchy problem and therefore fix the electroweak (EW) scale in the presence of quantum corrections. Numerical methods testing the SUSY models often report a good likelihood L (or chi^2=-2ln L) to fit the data {\it including} the EW scale itself (m_Z^0)...
[ { "created": "Thu, 21 Feb 2013 12:06:55 GMT", "version": "v1" }, { "created": "Thu, 30 May 2013 18:27:53 GMT", "version": "v2" }, { "created": "Tue, 16 Jul 2013 20:40:41 GMT", "version": "v3" }, { "created": "Sun, 4 Aug 2013 21:14:20 GMT", "version": "v4" } ]
2015-06-15
[ [ "Ghilencea", "D. M.", "" ] ]
TeV-scale supersymmetry was originally introduced to solve the hierarchy problem and therefore fix the electroweak (EW) scale in the presence of quantum corrections. Numerical methods testing the SUSY models often report a good likelihood L (or chi^2=-2ln L) to fit the data {\it including} the EW scale itself (m_Z^0) w...
hep-ph/9808417
Chi-Sing Lam
C.S. Lam (McGill University)
QCD Phase Shifts and Rising Total Cross-Sections
Talk given at ICHEP98, Vancouver, July 23--29, 1998. To appear in the Proceedings. Needs style file ltwol2e.sty (attached)
null
null
McGill/98-999
hep-ph
null
Energy dependence of $\gamma^*p$ total cross section is considered. It is known from the HERA data that the cross section grows with energy, and the rate of growth is an increasing function of the virtuality $Q^2$ of the photon $\gamma^*$. This dependence can be explained in a simple and generic way by the Froissart ...
[ { "created": "Tue, 25 Aug 1998 17:21:25 GMT", "version": "v1" } ]
2007-05-23
[ [ "Lam", "C. S.", "", "McGill University" ] ]
Energy dependence of $\gamma^*p$ total cross section is considered. It is known from the HERA data that the cross section grows with energy, and the rate of growth is an increasing function of the virtuality $Q^2$ of the photon $\gamma^*$. This dependence can be explained in a simple and generic way by the Froissart bo...