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1605.08190
Juan Rojo
Juan Rojo
Weak boson production from D0 and LHCb in the NNPDF global analysis
6 pages, 3 figures, to appear in the proceedings of the XXIV International Workshop on Deep-Inelastic Scattering and Related Subjects, 11-15 April, 2016, DESY Hamburg, Germany
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
High-precision electroweak production measurements from the Tevatron and the LHC provide important constraints on the quark flavor separation in global PDF fits. In this contribution, we study the impact of the recent D0 W asymmetry measurements and of the LHCb W and Z Run I combination in the global NNPDF analysis. ...
[ { "created": "Thu, 26 May 2016 08:34:41 GMT", "version": "v1" } ]
2016-05-27
[ [ "Rojo", "Juan", "" ] ]
High-precision electroweak production measurements from the Tevatron and the LHC provide important constraints on the quark flavor separation in global PDF fits. In this contribution, we study the impact of the recent D0 W asymmetry measurements and of the LHCb W and Z Run I combination in the global NNPDF analysis. We...
0910.4535
Liam Keegan
Francis Bursa, Luigi Del Debbio, Liam Keegan, Claudio Pica, Thomas Pickup
Mass anomalous dimension in SU(2) with two adjoint fermions
30 pages, 11 figures
Phys.Rev.D81:014505,2010
10.1103/PhysRevD.81.014505
DAMTP-2009-65
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study SU(2) lattice gauge theory with two flavours of Dirac fermions in the adjoint representation. We measure the running of the coupling in the Schroedinger Functional (SF) scheme and find it is consistent with existing results. We discuss how systematic errors affect the evidence for an infrared fixed point (IR...
[ { "created": "Fri, 23 Oct 2009 16:49:12 GMT", "version": "v1" }, { "created": "Wed, 16 Dec 2009 11:29:45 GMT", "version": "v2" } ]
2010-04-06
[ [ "Bursa", "Francis", "" ], [ "Del Debbio", "Luigi", "" ], [ "Keegan", "Liam", "" ], [ "Pica", "Claudio", "" ], [ "Pickup", "Thomas", "" ] ]
We study SU(2) lattice gauge theory with two flavours of Dirac fermions in the adjoint representation. We measure the running of the coupling in the Schroedinger Functional (SF) scheme and find it is consistent with existing results. We discuss how systematic errors affect the evidence for an infrared fixed point (IRFP...
hep-ph/0602119
Andrej Arbuzov
A.B. Arbuzov, E.S. Scherbakova (JINR, Dubna)
Next-to-leading order corrections to Bhabha scattering in renormalization group approach (I). Soft and virtual photonic contributions
12 pages, 10 Figures, elsart.cls
JETP Lett. 83 (2006) 427-432
10.1134/S0021364006100018
null
hep-ph
null
Soft and virtual loop photonic contributions to the second order next-to-leading QED radiative corrections to Bhabha scattering are calculated with help of the renormalization group approach. The results are in agreement with earlier calculations, where other methods were used. Scale dependence and the present theore...
[ { "created": "Tue, 14 Feb 2006 09:00:13 GMT", "version": "v1" } ]
2022-06-01
[ [ "Arbuzov", "A. B.", "", "JINR, Dubna" ], [ "Scherbakova", "E. S.", "", "JINR, Dubna" ] ]
Soft and virtual loop photonic contributions to the second order next-to-leading QED radiative corrections to Bhabha scattering are calculated with help of the renormalization group approach. The results are in agreement with earlier calculations, where other methods were used. Scale dependence and the present theoreti...
1805.00615
Gilberto Tavares-Velasco
A. I. Hern\'andez-Ju\'arez, A. Moyotl, G. Tavares-Velasco
Chromomagnetic and chromoelectric dipole moments of the top quark in the 4GTHDM
Revised version
Phys. Rev. D 98, 035040 (2018)
10.1103/PhysRevD.98.035040
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The chromo magnetic dipole moment (CMDM) and chromo electric dipole moment (CEDM) of the top quark are calculated at the one-loop level in the framework of the two-Higgs doublet model with four fermion generations (4GTHDM), which is still consistent with experimental data and apart from new scalar bosons ($H^0$, $A^0...
[ { "created": "Wed, 2 May 2018 04:05:19 GMT", "version": "v1" }, { "created": "Mon, 27 Aug 2018 18:59:27 GMT", "version": "v2" } ]
2018-09-12
[ [ "Hernández-Juárez", "A. I.", "" ], [ "Moyotl", "A.", "" ], [ "Tavares-Velasco", "G.", "" ] ]
The chromo magnetic dipole moment (CMDM) and chromo electric dipole moment (CEDM) of the top quark are calculated at the one-loop level in the framework of the two-Higgs doublet model with four fermion generations (4GTHDM), which is still consistent with experimental data and apart from new scalar bosons ($H^0$, $A^0$,...
2001.04844
Vladimir Petrov A.
Vladimir A. Petrov
On the momentum transfer dependence of the phase in elastic scattering
8 pages
null
null
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The question is discussed: to what extent the often assumed independence of the phase of the elastic scattering amplitude from the momentum transfer \textit{in the region of only small values} of $ t $ limits $ t $-dependence of the phase generally. Analyticity allows to give a proof that if the phase of a strong int...
[ { "created": "Tue, 14 Jan 2020 15:12:49 GMT", "version": "v1" }, { "created": "Sun, 23 Feb 2020 11:30:59 GMT", "version": "v2" } ]
2020-02-25
[ [ "Petrov", "Vladimir A.", "" ] ]
The question is discussed: to what extent the often assumed independence of the phase of the elastic scattering amplitude from the momentum transfer \textit{in the region of only small values} of $ t $ limits $ t $-dependence of the phase generally. Analyticity allows to give a proof that if the phase of a strong inter...
1603.04884
Torsten Bringmann
Torsten Bringmann, Haavard Tveit Ihle, Joern Kersten and Parampreet Walia
Suppressing structure formation at dwarf galaxy scales and below: late kinetic decoupling as a compelling alternative to warm dark matter
23 pages revtex4, 11 figures. Extended discussion and model classification. Matches published version
Phys. Rev. D 94, 103529 (2016)
10.1103/PhysRevD.94.103529
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Warm dark matter cosmologies have been widely studied as an alternative to the cold dark matter paradigm, the characteristic feature being a suppression of structure formation on small cosmological scales. A very similar situation occurs if standard cold dark matter particles are kept in local thermal equilibrium wit...
[ { "created": "Tue, 15 Mar 2016 21:01:34 GMT", "version": "v1" }, { "created": "Sun, 26 Jun 2016 22:09:15 GMT", "version": "v2" }, { "created": "Wed, 30 Nov 2016 23:16:13 GMT", "version": "v3" } ]
2016-12-02
[ [ "Bringmann", "Torsten", "" ], [ "Ihle", "Haavard Tveit", "" ], [ "Kersten", "Joern", "" ], [ "Walia", "Parampreet", "" ] ]
Warm dark matter cosmologies have been widely studied as an alternative to the cold dark matter paradigm, the characteristic feature being a suppression of structure formation on small cosmological scales. A very similar situation occurs if standard cold dark matter particles are kept in local thermal equilibrium with ...
hep-ph/0204046
Jonathan Osborne
Jonathan Osborne and Xin-Nian Wang
Multiple Parton Scattering in Nuclei: Twist-Four Nuclear Matrix Elements and Off-Forward Parton Distributions
23 pages, 7 figures, minor corrections
Nucl.Phys. A710 (2002) 281-302
10.1016/S0375-9474(02)01085-0
null
hep-ph
null
Multiple parton scatterings inside a large nucleus generally involve higher-twist nuclear parton matrix elements. The gluon bremsstrahlung induced by multiple scattering depends not only on direct parton matrix elements but also on momentum-crossed ones, due to the Landau-Pomeranchuk-Migdal interference effect. We sh...
[ { "created": "Thu, 4 Apr 2002 00:43:26 GMT", "version": "v1" }, { "created": "Wed, 26 Jun 2002 23:18:03 GMT", "version": "v2" } ]
2010-04-05
[ [ "Osborne", "Jonathan", "" ], [ "Wang", "Xin-Nian", "" ] ]
Multiple parton scatterings inside a large nucleus generally involve higher-twist nuclear parton matrix elements. The gluon bremsstrahlung induced by multiple scattering depends not only on direct parton matrix elements but also on momentum-crossed ones, due to the Landau-Pomeranchuk-Migdal interference effect. We show...
hep-ph/9911415
Suvorova Olga
O.V.Suvorova (INR RAS, Moscow)
Status and Perspectives of Indirect Search for Dark Matter
15 pages LaTex file with iopconf1.sty and 3 EPS figures (to be published in Proc of the 2nd Int Conf on Physics beyond the Standart Model-- Beyond the Desert'99, June 1999, Castle Ringberg, Tegernsee, Germany)
null
null
null
hep-ph
null
I summarize here and discuss the results of presently operating neutrino telescopes in searching for a signal of dark matter weakly interacting massive particles (WIMPs).
[ { "created": "Fri, 19 Nov 1999 17:52:03 GMT", "version": "v1" } ]
2007-05-23
[ [ "Suvorova", "O. V.", "", "INR RAS, Moscow" ] ]
I summarize here and discuss the results of presently operating neutrino telescopes in searching for a signal of dark matter weakly interacting massive particles (WIMPs).
hep-ph/0204060
Christian Weiss
R.J. Fries, A. Schaefer, C. Weiss
Polarized antiquark flavor asymmetry: Pauli blocking vs. the pion cloud
4 pages, revtex, 3 eps figures
Eur.Phys.J.A17:509-512,2003
10.1140/epja/i2002-10161-2
null
hep-ph
null
The flavor asymmetry of the unpolarized antiquark distributions in the proton, dbar(x) - ubar(x) > 0, can qualitatively be explained either by Pauli blocking by the valence quarks, or as an effect of the pion cloud of the nucleon. In contrast, predictions for the polarized asymmetry Delta_ubar(x) - Delta_dbar(x) base...
[ { "created": "Fri, 5 Apr 2002 00:30:03 GMT", "version": "v1" } ]
2011-02-01
[ [ "Fries", "R. J.", "" ], [ "Schaefer", "A.", "" ], [ "Weiss", "C.", "" ] ]
The flavor asymmetry of the unpolarized antiquark distributions in the proton, dbar(x) - ubar(x) > 0, can qualitatively be explained either by Pauli blocking by the valence quarks, or as an effect of the pion cloud of the nucleon. In contrast, predictions for the polarized asymmetry Delta_ubar(x) - Delta_dbar(x) based ...
hep-ph/0108193
Patrick Huber
P. Huber and J.W.F. Valle
Non-Standard Interactions: Atmospheric versus Neutrino Factory Experiments
20 pages, 4 figures, references added, version to appear in Phys. Lett. B
Phys.Lett.B523:151-160,2001
10.1016/S0370-2693(01)01319-3
null
hep-ph
null
We consider the potential of a generic neutrino factory (NUFACT) in probing non-standard neutrino-matter interactions (NSI). We find that the sensitivity to flavour-changing (FC) NSI can be substantially improved with respect to present atmospheric neutrino data, especially at energies higher than approximately 50 Ge...
[ { "created": "Thu, 23 Aug 2001 13:32:05 GMT", "version": "v1" }, { "created": "Tue, 30 Oct 2001 16:28:35 GMT", "version": "v2" } ]
2009-09-17
[ [ "Huber", "P.", "" ], [ "Valle", "J. W. F.", "" ] ]
We consider the potential of a generic neutrino factory (NUFACT) in probing non-standard neutrino-matter interactions (NSI). We find that the sensitivity to flavour-changing (FC) NSI can be substantially improved with respect to present atmospheric neutrino data, especially at energies higher than approximately 50 GeV,...
hep-ph/9809264
Silvano Simula
G. Ricco and S. Simula
Longitudinal and transverse structure functions of proton and deuteron at large x
to appear in the Proceedings of the International Workshop on "JLab: Physics and Instrumentation with 6-12 GeV Beams", Jefferson Lab (Newport News, USA), June 15-18, 1998
null
null
null
hep-ph nucl-th
null
Higher-twist effects in the low-order moments of the longitudinal and transverse structure functions of proton and deuteron have been analyzed using available phenomenological fits of existing data in the Q**2 range between 1 and 20 (GeV/c)**2. Both twist-4 and twist-6 contributions have been determined adopting the ...
[ { "created": "Fri, 4 Sep 1998 11:05:26 GMT", "version": "v1" } ]
2007-05-23
[ [ "Ricco", "G.", "" ], [ "Simula", "S.", "" ] ]
Higher-twist effects in the low-order moments of the longitudinal and transverse structure functions of proton and deuteron have been analyzed using available phenomenological fits of existing data in the Q**2 range between 1 and 20 (GeV/c)**2. Both twist-4 and twist-6 contributions have been determined adopting the Na...
2011.02929
Anja Brenner
Anja Brenner, Alejandro Ibarra, Andreas Rappelt
Conservative constraints on the effective theory of dark matter-nucleon interactions from IceCube: the impact of operator interference
24 pages, matches published version
null
10.1088/1475-7516/2021/07/012
TUM-HEP 1295/20
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a method to derive conservative upper limits on the coupling constants of the effective theory of dark matter-nucleon interactions, taking into account the interference among operators. The method can be applied in any basis, and can be easily particularized to any UV complete model. To illustrate our meth...
[ { "created": "Thu, 5 Nov 2020 15:51:59 GMT", "version": "v1" }, { "created": "Wed, 18 Nov 2020 00:22:14 GMT", "version": "v2" }, { "created": "Tue, 11 May 2021 10:35:32 GMT", "version": "v3" } ]
2021-07-21
[ [ "Brenner", "Anja", "" ], [ "Ibarra", "Alejandro", "" ], [ "Rappelt", "Andreas", "" ] ]
We present a method to derive conservative upper limits on the coupling constants of the effective theory of dark matter-nucleon interactions, taking into account the interference among operators. The method can be applied in any basis, and can be easily particularized to any UV complete model. To illustrate our method...
hep-ph/0507187
Fumiko Okiharu
F. Okiharu (Nihon U.), T. Doi (RIKEN BNL), H. Ichie, H. Iida, N. Ishii, M. Oka, H. Suganuma (Tokyo Inst. Tech.), T. T. Takahashi, (YITP, Kyoto U.)
Tetraquark and Pentaquark Systems in Lattice QCD
22 pages, 3 tables, 16 figures. Talk given at International Workshop on Quark Nuclear Physics 2005 (QNP05), Phoenix Park, Korea, 22-24, Feb., 2005
J.Mod.Phys. 7 (2016) 774-789
10.4236/jmp.2016.78072
null
hep-ph
null
Motivated by the recent experimental discoveries of multi-quark candidates, e.g., the $\Theta^+(1540)$, we study multi-quark systems in lattice QCD. First, we perform accurate mass measurements of low-lying 5Q states with $J=1/2$ and I=0 in both positive- and negative-parity channels in anisotropic lattice QCD. The l...
[ { "created": "Fri, 15 Jul 2005 10:47:13 GMT", "version": "v1" } ]
2016-05-02
[ [ "Okiharu", "F.", "", "Nihon U." ], [ "Doi", "T.", "", "RIKEN BNL" ], [ "Ichie", "H.", "", "Tokyo Inst. Tech." ], [ "Iida", "H.", "", "Tokyo Inst. Tech." ], [ "Ishii", "N.", "", "Tokyo Inst. Tech." ], [ "Oka", ...
Motivated by the recent experimental discoveries of multi-quark candidates, e.g., the $\Theta^+(1540)$, we study multi-quark systems in lattice QCD. First, we perform accurate mass measurements of low-lying 5Q states with $J=1/2$ and I=0 in both positive- and negative-parity channels in anisotropic lattice QCD. The low...
0806.0667
Jackson Wu
We-Fu Chang, John N. Ng, Jackson M. S. Wu
Testing Realistic Quark Mass Matrices in the Custodial Randall-Sundrum Model with Flavor Changing Top Decays
30 pages, 6 figures. Reference added, typos corrected, discussions in Sec. IV B expanded. Version conforms to the published version
Phys.Rev.D78:096003,2008
10.1103/PhysRevD.78.096003
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study quark mass matrices in the Randall-Sundrum (RS) model with bulk symmetry $SU(2)_L \times SU(2)_R \times U(1)_{B-L}$. The Yukawa couplings are assumed to be within an order of magnitude of each other, and perturbative. We find that quark mass matrices of the symmetrical form proposed by Koide \textit{et. al.}...
[ { "created": "Wed, 4 Jun 2008 00:33:22 GMT", "version": "v1" }, { "created": "Wed, 5 Nov 2008 11:48:19 GMT", "version": "v2" } ]
2008-11-26
[ [ "Chang", "We-Fu", "" ], [ "Ng", "John N.", "" ], [ "Wu", "Jackson M. S.", "" ] ]
We study quark mass matrices in the Randall-Sundrum (RS) model with bulk symmetry $SU(2)_L \times SU(2)_R \times U(1)_{B-L}$. The Yukawa couplings are assumed to be within an order of magnitude of each other, and perturbative. We find that quark mass matrices of the symmetrical form proposed by Koide \textit{et. al.} [...
2404.05332
Chengfeng Cai
Borui Zhang, Zhao Zhang, Chengfeng Cai, Hong-Hao Zhang
Dark matter phenomenology and phase transition dynamics of the next to minimal composite Higgs model with dilaton
36 pages, 9 figures
null
null
null
hep-ph astro-ph.HE
http://creativecommons.org/licenses/by-nc-sa/4.0/
In this paper, we conduct a comprehensive study of the Next-to-Minimal Composite Higgs Model (NMCHM) extended with a dilaton field $\chi$ (denoted as NMCHM$_\chi$). A pseudo-Nambu-Goldstone boson (pNGB) $\eta$, resulting from the SO(6)$\to$SO(5) breaking, serves as a dark matter (DM) candidate. The inclusion of the d...
[ { "created": "Mon, 8 Apr 2024 09:20:22 GMT", "version": "v1" } ]
2024-04-09
[ [ "Zhang", "Borui", "" ], [ "Zhang", "Zhao", "" ], [ "Cai", "Chengfeng", "" ], [ "Zhang", "Hong-Hao", "" ] ]
In this paper, we conduct a comprehensive study of the Next-to-Minimal Composite Higgs Model (NMCHM) extended with a dilaton field $\chi$ (denoted as NMCHM$_\chi$). A pseudo-Nambu-Goldstone boson (pNGB) $\eta$, resulting from the SO(6)$\to$SO(5) breaking, serves as a dark matter (DM) candidate. The inclusion of the dil...
hep-ph/0306271
Tri Nang Pham
T. N. Pham
CP asymmetry in $B^- \to \pi^+ \pi^- K^-$ and $B^- \to K^+ K^- K^-$ decays
Invited talk at the Workshop on the CKM Unitarity Triangle, IPPP Durham, April 2003 (eConf C0304052). 4 pages LaTeX, 5 eps figures
ECONF C0304052:WG415,2003
null
CPHT-PC 031-0306
hep-ph hep-ex
null
The near equality between the measured value for $|V_{ub}|/|V_{cb}|$ and its unitarity triangle lower bound from $\sin 2\beta$ measurements suggests that $\alpha \approx 90^{\circ}$ and $\sin\gamma \approx \cos\beta = 0.91$ and a large direct CP violation in B decays would be possible. In this talk, I would like to d...
[ { "created": "Fri, 27 Jun 2003 09:20:32 GMT", "version": "v1" } ]
2010-11-23
[ [ "Pham", "T. N.", "" ] ]
The near equality between the measured value for $|V_{ub}|/|V_{cb}|$ and its unitarity triangle lower bound from $\sin 2\beta$ measurements suggests that $\alpha \approx 90^{\circ}$ and $\sin\gamma \approx \cos\beta = 0.91$ and a large direct CP violation in B decays would be possible. In this talk, I would like to dis...
hep-ph/9801305
Francisco Guerrero
Francisco Guerrero
Study of the resummation of chiral logarithms in the exponentiated expression for the pion form factor
11 pages, LaTeX, 1 PostScript figure. To appear in Physical Review D
Phys.Rev. D57 (1998) 4136-4141
10.1103/PhysRevD.57.4136
FTUV/97-53 IFIC/97-84
hep-ph
null
From the properties of analyticity and unitarity it has been recently obtained an exponentiated expression for the pion form factor. In this work I show the validity of this expression comparing its order p^6 term with the one exactly calculated in ChPT.
[ { "created": "Wed, 14 Jan 1998 17:39:25 GMT", "version": "v1" } ]
2009-10-31
[ [ "Guerrero", "Francisco", "" ] ]
From the properties of analyticity and unitarity it has been recently obtained an exponentiated expression for the pion form factor. In this work I show the validity of this expression comparing its order p^6 term with the one exactly calculated in ChPT.
hep-ph/0606240
Ilja Dorsner
Ilja Dorsner
Minimal Realistic SU(5) Scenario
6 pages, 1 figure, presented at the XLIst Rencontres de Moriond, Electroweak Interactions and Unified Theories, La Thuile, Italy, March 11-18, 2006
null
null
null
hep-ph
null
We present phenomenological aspects of the simplest realistic SU(5) grand unified theory--the theory with the 5, 15, and 24 dimensional representations in the Higgs sector. We show that a successful gauge coupling unification sets experimentally accessible upper bound on the total proton decay lifetime. It also relat...
[ { "created": "Thu, 22 Jun 2006 10:58:14 GMT", "version": "v1" } ]
2007-05-23
[ [ "Dorsner", "Ilja", "" ] ]
We present phenomenological aspects of the simplest realistic SU(5) grand unified theory--the theory with the 5, 15, and 24 dimensional representations in the Higgs sector. We show that a successful gauge coupling unification sets experimentally accessible upper bound on the total proton decay lifetime. It also relates...
2211.06085
Xu-Chang Zheng
Hong-Tai Li, Xu-Chang Zheng, Jiang Yan, Xing-Gang Wu, Gu Chen
Hadronic production of $\Xi_{bc}$ with the intrinsic heavy-quark content at a fixed-target experiment at the LHC
13 pages, 18 figures
Phys. Rev. D 106, 114030 (2022)
10.1103/PhysRevD.106.114030
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
In this paper, we make a detailed study on the hadronic production of the $\Xi_{bc}$ baryon at a fixed target experiment at the LHC (After@LHC). In estimating the production cross sections, the $(g+g)$, $(g+c)$ and $(g+b)$ production mechanisms are considered. For the initial heavy quarks, in addition to the extrinsi...
[ { "created": "Fri, 11 Nov 2022 09:38:52 GMT", "version": "v1" }, { "created": "Tue, 3 Jan 2023 13:38:58 GMT", "version": "v2" } ]
2023-01-04
[ [ "Li", "Hong-Tai", "" ], [ "Zheng", "Xu-Chang", "" ], [ "Yan", "Jiang", "" ], [ "Wu", "Xing-Gang", "" ], [ "Chen", "Gu", "" ] ]
In this paper, we make a detailed study on the hadronic production of the $\Xi_{bc}$ baryon at a fixed target experiment at the LHC (After@LHC). In estimating the production cross sections, the $(g+g)$, $(g+c)$ and $(g+b)$ production mechanisms are considered. For the initial heavy quarks, in addition to the extrinsic ...
hep-ph/9808266
Junya Hashida
J. Hashida, T. Muta, K. Ohkura
Pattern of Chiral Symmetry Restoration at Finite Temperature in A Supersymmetric Composite Model
12 pages, 4 figures, REVTeX
Phys.Lett. B451 (1999) 343-348
10.1016/S0370-2693(99)00215-4
HUPD-9821
hep-ph
null
The structure of chiral symmetry restorations at finite temperature is thoroughly investigated in the supersymmetric Nambu-Jona-Lasinio model with a soft supersymmetry breaking term. It is found that the broken chiral symmetry at vanishing temperature is restored at sufficiently high temperature in two patterns, i. e...
[ { "created": "Sat, 8 Aug 1998 15:15:44 GMT", "version": "v1" }, { "created": "Tue, 23 Feb 1999 14:48:39 GMT", "version": "v2" } ]
2009-10-31
[ [ "Hashida", "J.", "" ], [ "Muta", "T.", "" ], [ "Ohkura", "K.", "" ] ]
The structure of chiral symmetry restorations at finite temperature is thoroughly investigated in the supersymmetric Nambu-Jona-Lasinio model with a soft supersymmetry breaking term. It is found that the broken chiral symmetry at vanishing temperature is restored at sufficiently high temperature in two patterns, i. e.,...
2210.16532
Zhun Lu
Xiupeng Xie and Zhun Lu
T-even transverse momentum dependent gluon fragmentation functions in a spectator model
9 pages, 4 figures
null
10.1016/j.physletb.2023.137973
null
hep-ph
http://creativecommons.org/licenses/by-nc-sa/4.0/
We present a model calculation of transverse momentum dependent (TMD) gluon fragmentation functions for the spin-1/2 and spin-0 hadrons. The model is based on the assumption that a time-like off-shell gluon can fragments into a hadron and a single spectator particle. So far such spectator models have only been used t...
[ { "created": "Sat, 29 Oct 2022 08:45:58 GMT", "version": "v1" } ]
2023-06-14
[ [ "Xie", "Xiupeng", "" ], [ "Lu", "Zhun", "" ] ]
We present a model calculation of transverse momentum dependent (TMD) gluon fragmentation functions for the spin-1/2 and spin-0 hadrons. The model is based on the assumption that a time-like off-shell gluon can fragments into a hadron and a single spectator particle. So far such spectator models have only been used to ...
0812.1910
Werner Bernreuther
Stefan Berge, Werner Bernreuther
Determining the CP parity of Higgs bosons at the LHC in the $\tau$ to 1-prong decay channels
Latex, 15 pages, 6 figures
Phys.Lett.B671:470-476,2009
10.1016/j.physletb.2008.12.065
PITHA 08/29, MZ-TH/08-38
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a method for determining the CP nature of a neutral Higgs boson or spin-zero resonance $\phi$ at the CERN Large Hadron Collider (LHC) in its $\phi\to\tau^{-}\tau^{+}$ decay channel. The method can be applied to any 1-prong $\tau$-decay mode, which comprise the majority of the $\tau$-lepton decays. The prop...
[ { "created": "Wed, 10 Dec 2008 13:26:18 GMT", "version": "v1" } ]
2009-02-24
[ [ "Berge", "Stefan", "" ], [ "Bernreuther", "Werner", "" ] ]
We propose a method for determining the CP nature of a neutral Higgs boson or spin-zero resonance $\phi$ at the CERN Large Hadron Collider (LHC) in its $\phi\to\tau^{-}\tau^{+}$ decay channel. The method can be applied to any 1-prong $\tau$-decay mode, which comprise the majority of the $\tau$-lepton decays. The propos...
1203.0430
Shinya Kanemura
Shinya Kanemura, Eibun Senaha and Tetsuo Shindou
Decoupling Property of SUSY Extended Higgs Sectors and Implication for Electroweak Baryogenesis
7 pages, 3 figures, talk given at the LCWS 2011, September 2011, Granada, Spain
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
One-loop contributions to the Higgs potential at finite temperatures are discussed in the supersymmetric standard model with four Higgs doublet chiral superfields as well as a pair of charged singlet chiral superfields. The mass of the lightest Higgs boson $h$ is determined only by the D-term at the tree-level in thi...
[ { "created": "Fri, 2 Mar 2012 11:56:01 GMT", "version": "v1" } ]
2012-03-05
[ [ "Kanemura", "Shinya", "" ], [ "Senaha", "Eibun", "" ], [ "Shindou", "Tetsuo", "" ] ]
One-loop contributions to the Higgs potential at finite temperatures are discussed in the supersymmetric standard model with four Higgs doublet chiral superfields as well as a pair of charged singlet chiral superfields. The mass of the lightest Higgs boson $h$ is determined only by the D-term at the tree-level in this ...
hep-ph/0601023
Pran Nath
Pran Nath and Pavel Fileviez Perez
Proton stability in grand unified theories, in strings, and in branes
Published in Physics Reports. 258 pages, 11 figures
Phys.Rept.441:191-317,2007
10.1016/j.physrep.2007.02.010
null
hep-ph hep-th
null
A broad overview of the current status of proton stability in unified models of particle interactions is given which includes non - supersymmetric unification, SUSY and SUGRA unified models, unification based on extra dimensions, and string-M-theory models. The extra dimensional unification includes 5D and 6D and uni...
[ { "created": "Wed, 4 Jan 2006 20:50:46 GMT", "version": "v1" }, { "created": "Thu, 19 Jan 2006 14:46:18 GMT", "version": "v2" }, { "created": "Mon, 23 Apr 2007 23:48:59 GMT", "version": "v3" } ]
2007-05-23
[ [ "Nath", "Pran", "" ], [ "Perez", "Pavel Fileviez", "" ] ]
A broad overview of the current status of proton stability in unified models of particle interactions is given which includes non - supersymmetric unification, SUSY and SUGRA unified models, unification based on extra dimensions, and string-M-theory models. The extra dimensional unification includes 5D and 6D and unive...
hep-ph/0010343
Jean-Marc Laget
S.J. Brodsky, E. Chudakov, P. Hoyer and J.M. Laget
Photoproduction of charm near threshold
5 pages 5 figures Changes: 1- Added refs 24,25; 2- Added two sentences, top of column 2 of page 3, on the definition of x, its range and the domain of validity of the model
Phys.Lett.B498:23-28,2001
10.1016/S0370-2693(00)01373-3
SLAC-PUB-8677, NORDITA-2000/90 HE, DAPNIA/SPhN-00-72
hep-ph
null
Charm and bottom production near threshold is sensitive to the multi-quark, gluonic, and hidden-color correlations of hadronic and nuclear wavefunctions in QCD since all of the target's constituents must act coherently within the small interaction volume of the heavy quark production subprocess. Although such multi-p...
[ { "created": "Tue, 31 Oct 2000 09:26:23 GMT", "version": "v1" }, { "created": "Wed, 29 Nov 2000 11:08:43 GMT", "version": "v2" } ]
2009-09-11
[ [ "Brodsky", "S. J.", "" ], [ "Chudakov", "E.", "" ], [ "Hoyer", "P.", "" ], [ "Laget", "J. M.", "" ] ]
Charm and bottom production near threshold is sensitive to the multi-quark, gluonic, and hidden-color correlations of hadronic and nuclear wavefunctions in QCD since all of the target's constituents must act coherently within the small interaction volume of the heavy quark production subprocess. Although such multi-par...
hep-ph/0104244
Martin Buysse
M. Buysse
Natural Relations in the Standard Model
10 pages, 1 figure
null
null
null
hep-ph
null
We establish the potential existence of natural relations between the Cabibbo angle and the quark mass ratios, in a Standard Model with one Higgs doublet and two quark generations. The argument is based on the calculation of the divergent one-loop radiative corrections to the quark mass matrices.
[ { "created": "Tue, 24 Apr 2001 14:10:26 GMT", "version": "v1" } ]
2007-05-23
[ [ "Buysse", "M.", "" ] ]
We establish the potential existence of natural relations between the Cabibbo angle and the quark mass ratios, in a Standard Model with one Higgs doublet and two quark generations. The argument is based on the calculation of the divergent one-loop radiative corrections to the quark mass matrices.
2009.11889
Jorge Segovia
M.C. Gordillo, F. De Soto and J. Segovia
Diffusion Monte Carlo calculations of fully-heavy (multiquark) bound states
19 pages, 7 figures, 15 tables
null
10.1103/PhysRevD.102.114007
null
hep-ph hep-ex hep-lat nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We use a diffusion Monte Carlo method to solve the many-body Schr\"odinger equation describing fully-heavy tetraquark systems. This approach allows to reduce the uncertainty of the numerical calculation at the percent level, accounts for multi-particle correlations in the physical observables, and avoids the usual qu...
[ { "created": "Thu, 24 Sep 2020 18:19:20 GMT", "version": "v1" } ]
2020-12-30
[ [ "Gordillo", "M. C.", "" ], [ "De Soto", "F.", "" ], [ "Segovia", "J.", "" ] ]
We use a diffusion Monte Carlo method to solve the many-body Schr\"odinger equation describing fully-heavy tetraquark systems. This approach allows to reduce the uncertainty of the numerical calculation at the percent level, accounts for multi-particle correlations in the physical observables, and avoids the usual quar...
1506.06462
Soumya Rao
Subhendra Mohanty and Soumya Rao
Detecting Dipolar Dark Matter in Beam Dump Experiments
7 pages, 1 figure, minor corrections made, reference added
null
null
ADP-15-21/T923
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study interaction of low mass dark matter within beam dump experiments. In particular we study the dipolar dark matter model which assumes that the dark matter couples to Standard Model particles via its electric or magnetic dipole moment. We analyse the constraints on this model in the context of a particular bea...
[ { "created": "Mon, 22 Jun 2015 04:24:35 GMT", "version": "v1" }, { "created": "Wed, 1 Jul 2015 07:06:01 GMT", "version": "v2" } ]
2015-07-02
[ [ "Mohanty", "Subhendra", "" ], [ "Rao", "Soumya", "" ] ]
We study interaction of low mass dark matter within beam dump experiments. In particular we study the dipolar dark matter model which assumes that the dark matter couples to Standard Model particles via its electric or magnetic dipole moment. We analyse the constraints on this model in the context of a particular beam ...
hep-ph/0307243
Marek Karliner
Marek Karliner (Tel Aviv U.) and Harry J. Lipkin (Weizmann Inst. and Tel Aviv U.)
The Constituent Quark Model Revisited - Quark Masses, New Predictions for Hadron Masses and KN Pentaquark
LaTeX, 25 pages, no figures, typos corrected
null
null
TAUP 2735-03
hep-ph
null
Prompted by the recent surprising results in QCD spectroscopy, we extend to heavy flavors the hadron mass relations showing that the constituent quark mass differences and ratios have the same values when obtained from mesons and baryons. We obtain several new successful relations involving heavy quarks and provide s...
[ { "created": "Fri, 18 Jul 2003 20:08:26 GMT", "version": "v1" }, { "created": "Thu, 24 Jul 2003 15:36:37 GMT", "version": "v2" } ]
2007-05-23
[ [ "Karliner", "Marek", "", "Tel Aviv U." ], [ "Lipkin", "Harry J.", "", "Weizmann Inst. and\n Tel Aviv U." ] ]
Prompted by the recent surprising results in QCD spectroscopy, we extend to heavy flavors the hadron mass relations showing that the constituent quark mass differences and ratios have the same values when obtained from mesons and baryons. We obtain several new successful relations involving heavy quarks and provide som...
1107.0254
Feng-Kun Guo
Martin Cleven, Feng-Kun Guo, Christoph Hanhart and Ulf-G. Mei{\ss}ner
Bound state nature of the exotic Z_b states
8 pages, 5 figures. Typos corrected, version appeared in Eur. Phys. J. A
Eur. Phys. J. A (2011) 47: 120
10.1140/epja/i2011-11120-6
null
hep-ph hep-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The assumption that the newly observed charged bottomonia states Z_b(10610) and Z_b(10650) are of molecular nature is confronted with the measured invariant mass distributions for the transitions of the Upsilon(5S) to the final states h_b pi^+ pi^- and h_b(2P) pi^+ pi^-. It is shown that the assumption that the Z_b(1...
[ { "created": "Fri, 1 Jul 2011 15:43:11 GMT", "version": "v1" }, { "created": "Mon, 17 Oct 2011 08:57:10 GMT", "version": "v2" } ]
2011-10-18
[ [ "Cleven", "Martin", "" ], [ "Guo", "Feng-Kun", "" ], [ "Hanhart", "Christoph", "" ], [ "Meißner", "Ulf-G.", "" ] ]
The assumption that the newly observed charged bottomonia states Z_b(10610) and Z_b(10650) are of molecular nature is confronted with the measured invariant mass distributions for the transitions of the Upsilon(5S) to the final states h_b pi^+ pi^- and h_b(2P) pi^+ pi^-. It is shown that the assumption that the Z_b(106...
hep-ph/9304284
Mariano Quiros
Mariano Quir\'os
On Daisy and Superdaisy Resummation of the Effective Potential at Finite Temperature
Based on talk given at the 4th Hellenic School on Elementary Particle Physics (Corfu, Greece, Sept. 1992), 12 pages, LATEX, IEM-FT-71/93
null
null
null
hep-ph
null
We describe in detail, in the context of the simple scalar $\phi^4$ theory, the prescription for resummation of daisy and superdaisy diagrams in the effective potential using the solution of the gap equations in the infrared limit. We find that the latter procedure is consistent provided we neglect logarithmic terms ...
[ { "created": "Wed, 21 Apr 1993 14:31:27 GMT", "version": "v1" } ]
2007-05-23
[ [ "Quirós", "Mariano", "" ] ]
We describe in detail, in the context of the simple scalar $\phi^4$ theory, the prescription for resummation of daisy and superdaisy diagrams in the effective potential using the solution of the gap equations in the infrared limit. We find that the latter procedure is consistent provided we neglect logarithmic terms fr...
hep-ph/0702169
Felix Schwab
Christoph Promberger, Sebastian Schatt, Felix Schwab
Flavor Changing Neutral Current Effects and CP Violation in the Minimal 3-3-1 Model
29 pages, 11 figures, Some Comments and References added, version to appear in Phys Rev D
Phys.Rev.D75:115007,2007
10.1103/PhysRevD.75.115007
TUM-HEP-658/07, UAB-FT/624
hep-ph
null
We investigate in detail the flavor structure of the minimal 331 model and its implications for several flavor changing neutral current (FCNC) processes. In this model, where the weak SU(2)_L gauge group of the Standard Model is extended to a SU(3)_L, the by far dominant new contributions come from an additional neut...
[ { "created": "Fri, 16 Feb 2007 15:50:16 GMT", "version": "v1" }, { "created": "Fri, 15 Jun 2007 13:04:49 GMT", "version": "v2" } ]
2008-11-26
[ [ "Promberger", "Christoph", "" ], [ "Schatt", "Sebastian", "" ], [ "Schwab", "Felix", "" ] ]
We investigate in detail the flavor structure of the minimal 331 model and its implications for several flavor changing neutral current (FCNC) processes. In this model, where the weak SU(2)_L gauge group of the Standard Model is extended to a SU(3)_L, the by far dominant new contributions come from an additional neutra...
hep-ph/0510220
Kazuhiro Tanaka
Hiroyuki Kawamura (1), Jiro Kodaira (2), Kazuhiro Tanaka (3) ((1) RIKEN, (2) KEK, (3) Juntendo Univ.)
Unraveling Soft Components in the Shape Function for Inclusive B Decays
4 pages, contribution to proceedings of International Conference on QCD and Hadronic Physics, Beijing, June 16-20, 2005
null
null
null
hep-ph
null
We present a systematic study of the shape function for inclusive B-meson decays in the heavy-quark limit, which is based on the QCD equations of motion and heavy-quark symmetry, and takes into account the cusp divergence due to radiative corrections.
[ { "created": "Mon, 17 Oct 2005 13:44:09 GMT", "version": "v1" }, { "created": "Tue, 18 Oct 2005 07:10:25 GMT", "version": "v2" } ]
2007-05-23
[ [ "Kawamura", "Hiroyuki", "" ], [ "Kodaira", "Jiro", "" ], [ "Tanaka", "Kazuhiro", "" ] ]
We present a systematic study of the shape function for inclusive B-meson decays in the heavy-quark limit, which is based on the QCD equations of motion and heavy-quark symmetry, and takes into account the cusp divergence due to radiative corrections.
0807.1330
Robert Cousins
Robert D. Cousins
Comment on "Bayesian Analysis of Pentaquark Signals from CLAS Data", with Response to the Reply by Ireland and Protopopsecu
Section II is copied from Phys. Rev. Lett. 101 029101 (2008). In v2, my response to first italicized quote in Sec. III is changed
Phys.Rev.Lett.101:029101,2008
10.1103/PhysRevLett.101.029101
null
hep-ph physics.data-an
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The CLAS Collaboration has published an analysis using Bayesian model selection. My Comment criticizing their use of arbitrary prior probability density functions, and a Reply by D.G. Ireland and D. Protopopsecu, have now been published as well. This paper responds to the Reply and discusses the issues in more detail...
[ { "created": "Tue, 8 Jul 2008 20:10:14 GMT", "version": "v1" }, { "created": "Sun, 23 Aug 2009 18:27:28 GMT", "version": "v2" } ]
2009-08-23
[ [ "Cousins", "Robert D.", "" ] ]
The CLAS Collaboration has published an analysis using Bayesian model selection. My Comment criticizing their use of arbitrary prior probability density functions, and a Reply by D.G. Ireland and D. Protopopsecu, have now been published as well. This paper responds to the Reply and discusses the issues in more detail, ...
2002.10949
Victor Henner
Victor Henner, Tatyana Belozerova
Is the K-matrix approach adequate for describing overlapping resonances?
arXiv admin note: text overlap with arXiv:2002.07568
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The K-matrix method is widely used unitary parametrization for several resonances with the same quantum numbers. But in fact resonances in this approach are separated and do not overlap.
[ { "created": "Sat, 22 Feb 2020 11:41:26 GMT", "version": "v1" } ]
2020-02-26
[ [ "Henner", "Victor", "" ], [ "Belozerova", "Tatyana", "" ] ]
The K-matrix method is widely used unitary parametrization for several resonances with the same quantum numbers. But in fact resonances in this approach are separated and do not overlap.
2303.11252
Yushi Mura
Shinya Kanemura and Yushi Mura
Electroweak baryogenesis via top-charm mixing
26 pages, 4 figures, references and some explanation added
null
null
OU-HET-1174
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate a scenario of electroweak baryogenesis in the two Higgs doublet model with quark flavor mixing. In general, off-diagonal components of quark Yukawa interactions with additional Higgs bosons are strongly constrained by the data for flavor changing neutral currents. However, top-charm quark mixing is not...
[ { "created": "Mon, 20 Mar 2023 16:38:35 GMT", "version": "v1" }, { "created": "Fri, 31 Mar 2023 11:27:14 GMT", "version": "v2" } ]
2023-04-03
[ [ "Kanemura", "Shinya", "" ], [ "Mura", "Yushi", "" ] ]
We investigate a scenario of electroweak baryogenesis in the two Higgs doublet model with quark flavor mixing. In general, off-diagonal components of quark Yukawa interactions with additional Higgs bosons are strongly constrained by the data for flavor changing neutral currents. However, top-charm quark mixing is not t...
hep-ph/0605341
Roberto Contino
Kaustubh Agashe, Roberto Contino, Leandro Da Rold, Alex Pomarol
A custodial symmetry for Zbb
11 pages. v2: minor corrections
Phys.Lett.B641:62-66,2006
10.1016/j.physletb.2006.08.005
null
hep-ph
null
We show that a subgroup of the custodial symmetry O(3) that protects delta rho from radiative corrections can also protect the Zbb coupling. This allows one to build models of electroweak symmetry breaking, such as Higgsless, Little Higgs or 5D composite Higgs models, that are safe from corrections to Z-> bb. We show...
[ { "created": "Wed, 31 May 2006 18:28:34 GMT", "version": "v1" }, { "created": "Thu, 21 Sep 2006 08:18:14 GMT", "version": "v2" } ]
2008-11-26
[ [ "Agashe", "Kaustubh", "" ], [ "Contino", "Roberto", "" ], [ "Da Rold", "Leandro", "" ], [ "Pomarol", "Alex", "" ] ]
We show that a subgroup of the custodial symmetry O(3) that protects delta rho from radiative corrections can also protect the Zbb coupling. This allows one to build models of electroweak symmetry breaking, such as Higgsless, Little Higgs or 5D composite Higgs models, that are safe from corrections to Z-> bb. We show t...
1308.4428
Ichiro Oda
Ichiro Oda
Higgs Mechanism in Scale-Invariant Gravity
32 pages
null
null
DPUR/TH/39
hep-ph gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider a Higgs mechanism in scale-invariant theories of gravitation. It is shown that in spontaneous symmetry breakdown of scale invariance, gauge symmetries are also broken spontaneously even without the Higgs potential if the corresponding charged scalar fields couple to a scalar curvature in a non-minimal way...
[ { "created": "Tue, 20 Aug 2013 20:41:16 GMT", "version": "v1" } ]
2013-08-22
[ [ "Oda", "Ichiro", "" ] ]
We consider a Higgs mechanism in scale-invariant theories of gravitation. It is shown that in spontaneous symmetry breakdown of scale invariance, gauge symmetries are also broken spontaneously even without the Higgs potential if the corresponding charged scalar fields couple to a scalar curvature in a non-minimal way. ...
2211.08353
Andrei Gritsan
N. Castro, K. Cranmer, A. V. Gritsan, J. Howarth, G. Magni, K. Mimasu, J. Rojo, J. Roskes, E. Vryonidou, T. You
LHC EFT WG Report: Experimental Measurements and Observables
LHC EFT Working Group note, 55 pages, 17 figures
null
null
CERN-LHCEFTWG-2022-001, CERN-LPCC-2022-05
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
The LHC effective field theory working group gathers members of the LHC experiments and the theory community to provide a framework for the interpretation of LHC data in the context of EFT. In this note we discuss experimental observables and corresponding measurements in analysis of the Higgs, top, and electroweak d...
[ { "created": "Tue, 15 Nov 2022 18:00:09 GMT", "version": "v1" }, { "created": "Wed, 16 Nov 2022 14:45:28 GMT", "version": "v2" } ]
2022-11-17
[ [ "Castro", "N.", "" ], [ "Cranmer", "K.", "" ], [ "Gritsan", "A. V.", "" ], [ "Howarth", "J.", "" ], [ "Magni", "G.", "" ], [ "Mimasu", "K.", "" ], [ "Rojo", "J.", "" ], [ "Roskes", "J.", "" ...
The LHC effective field theory working group gathers members of the LHC experiments and the theory community to provide a framework for the interpretation of LHC data in the context of EFT. In this note we discuss experimental observables and corresponding measurements in analysis of the Higgs, top, and electroweak dat...
1512.01082
Sergey Goloskokov
Sergey Goloskokov
Role of pion pole in hard exlusive meson leptoproduction
6 pages, 9 figures, Contribution to the proceedings of the XVI WORKSHOP ON HIGH ENERGY SPIN PHYSICS DSPIN-15, Dubna, Russia, September 8 - 12, 2015
null
10.1088/1742-6596/678/1/012035
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the pion pole contribution and transversity effects determined by the $H_T$ and $\bar E_T$ Generalized Parton Distributions (GPDs) which are essential in hard pseudoscalar and vector meson leptoproduction. We investigate spin effects in the $\omega$ and $\rho^0$ reactions. It is shown that the pion pole c...
[ { "created": "Thu, 3 Dec 2015 14:16:01 GMT", "version": "v1" } ]
2016-02-17
[ [ "Goloskokov", "Sergey", "" ] ]
We consider the pion pole contribution and transversity effects determined by the $H_T$ and $\bar E_T$ Generalized Parton Distributions (GPDs) which are essential in hard pseudoscalar and vector meson leptoproduction. We investigate spin effects in the $\omega$ and $\rho^0$ reactions. It is shown that the pion pole con...
hep-ph/9308307
Alex Krasnitz
A. Krasnitz and R. Potting
Sphaleron transitions in a realistic heat bath
13 pages, LATeX + 3 figures included as postscript files, to be encapsulated using epsf. Also available as a compressed postscript file by anonymous ftp from maggia.ethz.ch (login ftp, pw ftp; then: cd pub, binary, get sphb.ps.Z). IPS Research Report No. 93-10
Phys.Lett. B318 (1993) 492-500
10.1016/0370-2693(93)91545-X
null
hep-ph hep-lat hep-th
null
We measure the diffusion rate of Chern-Simons number in the (1+1)-dimensional Abelian Higgs model interacting with a realistic heat bath for temperatures between 1/13 and 1/3 times the sphaleron energy. It is found that the measured rate is close to that predicted by one-loop calculation at the lower end of the tempe...
[ { "created": "Fri, 20 Aug 1993 16:27:00 GMT", "version": "v1" }, { "created": "Sat, 21 Aug 1993 17:59:05 GMT", "version": "v2" } ]
2009-10-22
[ [ "Krasnitz", "A.", "" ], [ "Potting", "R.", "" ] ]
We measure the diffusion rate of Chern-Simons number in the (1+1)-dimensional Abelian Higgs model interacting with a realistic heat bath for temperatures between 1/13 and 1/3 times the sphaleron energy. It is found that the measured rate is close to that predicted by one-loop calculation at the lower end of the tempera...
hep-ph/0512331
Kim Maltman
Kim Maltman
On the Leading ORder Hadronic Contribution to (g-2)_mu
3 pages, 1 figure; prepared for the proceedings of PANIC'05
null
10.1063/1.2220421
null
hep-ph
null
Sum rule constraints dominated by the independent high-scale input, alpha_s(M_Z), are shown to be satisfied by I=1 spectral data from hadronic tau decays, but violated by the pre-2005 electroproduction (EM) cross-section data. Determinations of the Standard Model (SM) hadronic contribution to (g-2)_mu incorporating t...
[ { "created": "Mon, 26 Dec 2005 21:42:33 GMT", "version": "v1" } ]
2009-11-11
[ [ "Maltman", "Kim", "" ] ]
Sum rule constraints dominated by the independent high-scale input, alpha_s(M_Z), are shown to be satisfied by I=1 spectral data from hadronic tau decays, but violated by the pre-2005 electroproduction (EM) cross-section data. Determinations of the Standard Model (SM) hadronic contribution to (g-2)_mu incorporating tau...
hep-ph/9907478
James Pantaleone
James Pantaleone, T.K. Kuo and Sadek Mansour
Constraints on Exotic Mixing of Three Neutrinos
27 pages, 4 figures
Phys.Rev.D61:033011,2000
10.1103/PhysRevD.61.033011
null
hep-ph
null
Exotic explanations are considered for atmospheric neutrino observations. Our analysis includes matter effects and the mixing of all three neutrinos under the simplifying assumption of only one relevant mixing scale. Constraints from accelerator, reactor and solar neutrinos are included. We find that the proposed mix...
[ { "created": "Fri, 23 Jul 1999 21:00:14 GMT", "version": "v1" } ]
2014-11-17
[ [ "Pantaleone", "James", "" ], [ "Kuo", "T. K.", "" ], [ "Mansour", "Sadek", "" ] ]
Exotic explanations are considered for atmospheric neutrino observations. Our analysis includes matter effects and the mixing of all three neutrinos under the simplifying assumption of only one relevant mixing scale. Constraints from accelerator, reactor and solar neutrinos are included. We find that the proposed mixin...
1506.04535
Rusa Mandal
Rusa Mandal and Rahul Sinha
Implications from ${B\to K^*\ell^+\ell^-}$ observables using $3 \text{fb}^{-1}$ of LHCb data
11 pages, 6 figures, Matches with the published version
Phys. Rev. D 95, 014026 (2017)
10.1103/PhysRevD.95.014026
IMSc/2015/06/05
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The decay mode $B\to K^*\ell^+\ell^-$ results in the measurement of a large number of related observables by studying the angular distribution of the decay products and is regarded as a sensitive probe of physics beyond the standard model (SM). Recently, LHCb has measured several of these observables using $3 \text{f...
[ { "created": "Mon, 15 Jun 2015 09:54:42 GMT", "version": "v1" }, { "created": "Mon, 11 Apr 2016 08:39:34 GMT", "version": "v2" }, { "created": "Tue, 10 Jan 2017 05:05:03 GMT", "version": "v3" }, { "created": "Fri, 27 Jan 2017 15:39:03 GMT", "version": "v4" } ]
2017-01-30
[ [ "Mandal", "Rusa", "" ], [ "Sinha", "Rahul", "" ] ]
The decay mode $B\to K^*\ell^+\ell^-$ results in the measurement of a large number of related observables by studying the angular distribution of the decay products and is regarded as a sensitive probe of physics beyond the standard model (SM). Recently, LHCb has measured several of these observables using $3 \text{fb}...
hep-ph/0311110
Jacques Soffer
Claude Bourrely and Jacques Soffer
Do we understand the single-spin asymmetry for $pi^0$ inclusive production in pp collisions?
text modified, version to be published in Eur. Phys. J. C, 6 pages, 5 figures
Eur.Phys.J.C36:371-374,2004
10.1140/epjc/s2004-01956-4
CPT-2003/P.4581
hep-ph
null
The cross section data for $\pi^0$ inclusive production in $pp$ collisions is considered in a rather broad kinematic region in energy $\sqrt{s}$, Feynman variable $x_F$ and transverse momentum $p_T$. The analysis of these data is done in the perturbative QCD framework at the next-to-leading order. We find that they c...
[ { "created": "Sun, 9 Nov 2003 15:42:41 GMT", "version": "v1" }, { "created": "Fri, 28 May 2004 14:07:43 GMT", "version": "v2" } ]
2008-11-26
[ [ "Bourrely", "Claude", "" ], [ "Soffer", "Jacques", "" ] ]
The cross section data for $\pi^0$ inclusive production in $pp$ collisions is considered in a rather broad kinematic region in energy $\sqrt{s}$, Feynman variable $x_F$ and transverse momentum $p_T$. The analysis of these data is done in the perturbative QCD framework at the next-to-leading order. We find that they can...
hep-ph/0112155
Ibigi
I.I. Bigi
On A Recent Claim Concerning $\tau (D_s)/\tau (D^0)$
pages, no figure, 1 reference updated
null
null
UND-HEP-01-BIG08
hep-ph
null
It has been suggested that the observed $D_s - D^0$ lifetime difference can be `understood' as due to $SU(3)_{Fl}$ breaking in the phase spaces for the exclusive $D^0$ and $D_s$ channels `removing' the need for weak annihilation. It is pointed out that several of the statements in this argument are misleading or even...
[ { "created": "Tue, 11 Dec 2001 15:06:46 GMT", "version": "v1" }, { "created": "Wed, 6 Feb 2002 15:48:40 GMT", "version": "v2" } ]
2007-05-23
[ [ "Bigi", "I. I.", "" ] ]
It has been suggested that the observed $D_s - D^0$ lifetime difference can be `understood' as due to $SU(3)_{Fl}$ breaking in the phase spaces for the exclusive $D^0$ and $D_s$ channels `removing' the need for weak annihilation. It is pointed out that several of the statements in this argument are misleading or even i...
hep-ph/9507403
null
Wei Lu and Bo-Qiang Ma
The strange quark spin of the proton in semi-inclusive $\Lambda$ leptoproduction
9 pages, revtex, no figures, to be published in Phys. Lett. B
Phys.Lett. B357 (1995) 419-422
10.1016/0370-2693(95)00927-D
null
hep-ph hep-ex
null
Considering the possible interpretation of the Ellis-Jaffe sum rule violation that the strange quark in the polarized proton is remarkably polarized in the opposite direction of the proton spin, we investigate its implication in the semi-inclusive $\Lambda$ production in deep inelastic process with the electron beam ...
[ { "created": "Tue, 25 Jul 1995 23:21:42 GMT", "version": "v1" } ]
2015-06-25
[ [ "Lu", "Wei", "" ], [ "Ma", "Bo-Qiang", "" ] ]
Considering the possible interpretation of the Ellis-Jaffe sum rule violation that the strange quark in the polarized proton is remarkably polarized in the opposite direction of the proton spin, we investigate its implication in the semi-inclusive $\Lambda$ production in deep inelastic process with the electron beam un...
hep-ph/0301032
Marshall Baker
M. Baker
From QCD to Dual Superconductivity to Effective String Theory
Talk given at the 5th International Conference on Quark Confinement and the Hadron Spectrum, Gargnano, Italy, September 2002
null
10.1142/9789812704269_0021
null
hep-ph
null
We show how an effective field theory of long distance QCD, describing a dual superconductor, can be expressed as an effective string theory of superconducting vortices. We use the semiclassical expansion of this effective string theory about a classical rotating string solution in any spacetime dimension D to obtain...
[ { "created": "Mon, 6 Jan 2003 18:09:50 GMT", "version": "v1" } ]
2017-08-23
[ [ "Baker", "M.", "" ] ]
We show how an effective field theory of long distance QCD, describing a dual superconductor, can be expressed as an effective string theory of superconducting vortices. We use the semiclassical expansion of this effective string theory about a classical rotating string solution in any spacetime dimension D to obtain t...
hep-ph/0009112
Anindya Datta
Anindya Datta, Partha Konar, Biswarup Mukhopadhyaya
New Higgs signals from vector boson fusion in R-parity violating supersymmetry
15 pages, LaTeX, 19 postscript figures Version accepted for publication in Phys. Rev. D
Phys.Rev.D63:095009,2001
10.1103/PhysRevD.63.095009
MRI-P-000802
hep-ph
null
We investigate signals of the lightest neutral Higgs in an R-parity violating supersymmetric model through the vector boson fusion mechanism. Assuming that R-parity is violated through lepton number, and locating regions in the parameter space where decays of such a neutral scalar into a pair of lightest neutralinos ...
[ { "created": "Sun, 10 Sep 2000 19:44:29 GMT", "version": "v1" }, { "created": "Sun, 11 Feb 2001 12:29:32 GMT", "version": "v2" } ]
2009-10-31
[ [ "Datta", "Anindya", "" ], [ "Konar", "Partha", "" ], [ "Mukhopadhyaya", "Biswarup", "" ] ]
We investigate signals of the lightest neutral Higgs in an R-parity violating supersymmetric model through the vector boson fusion mechanism. Assuming that R-parity is violated through lepton number, and locating regions in the parameter space where decays of such a neutral scalar into a pair of lightest neutralinos ca...
hep-ph/0309244
Kacper Zalewski
Kacper Zalewski
Surprises in Bose-Einstein correlations
LateX, 8 pages, no figures, Report at QCD'03 Montpellier, July 2003
null
10.1016/j.nuclphysbps.2004.04.133
TPJU 7/2003
hep-ph
null
Four experimental results, which seem to contradict the established ideas about the Bose-Einstein correlations in multiple particle production processes, are briefly presented and dicussed.
[ { "created": "Mon, 22 Sep 2003 11:32:47 GMT", "version": "v1" }, { "created": "Fri, 3 Oct 2003 11:07:01 GMT", "version": "v2" } ]
2009-11-10
[ [ "Zalewski", "Kacper", "" ] ]
Four experimental results, which seem to contradict the established ideas about the Bose-Einstein correlations in multiple particle production processes, are briefly presented and dicussed.
2111.10608
Yilei Tang
Ligong Bian, Yi-Lei Tang, Ruiyu Zhou
FIMP dark matter mediated by massive gauge boson around the phase transition period and the gravitational waves production
null
null
10.1103/PhysRevD.106.035028
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We study the feebly interacting massive particle dark matter whose production processes are significantly affected by the phase evolution and the complicated thermal corrections to the vector boson. We calculate the freeze-in processes to obtain the correct dark matter relic density by enumerating all the possible $1...
[ { "created": "Sat, 20 Nov 2021 15:14:26 GMT", "version": "v1" } ]
2022-09-14
[ [ "Bian", "Ligong", "" ], [ "Tang", "Yi-Lei", "" ], [ "Zhou", "Ruiyu", "" ] ]
We study the feebly interacting massive particle dark matter whose production processes are significantly affected by the phase evolution and the complicated thermal corrections to the vector boson. We calculate the freeze-in processes to obtain the correct dark matter relic density by enumerating all the possible $1 \...
1202.0692
Andrea De Simone
Paolo Ciafaloni, Denis Comelli, Andrea De Simone, Antonio Riotto, Alfredo Urbano
Electroweak bremsstrahlung for wino-like Dark Matter annihilations
13 pages, 3 figures. Minor corrections to match published version
JCAP 1206:016,2012
10.1088/1475-7516/2012/06/016
SISSA 01/2012/EP
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
If the Dark Matter is the neutral Majorana component of a multiplet which is charged under the electroweak interactions of the Standard Model, its main annihilation channel is into W+W-, while the annihilation into light fermions is helicity suppressed. As pointed out recently, the radiation of gauge bosons from the ...
[ { "created": "Fri, 3 Feb 2012 13:15:40 GMT", "version": "v1" }, { "created": "Wed, 25 Jul 2012 10:19:24 GMT", "version": "v2" } ]
2012-07-26
[ [ "Ciafaloni", "Paolo", "" ], [ "Comelli", "Denis", "" ], [ "De Simone", "Andrea", "" ], [ "Riotto", "Antonio", "" ], [ "Urbano", "Alfredo", "" ] ]
If the Dark Matter is the neutral Majorana component of a multiplet which is charged under the electroweak interactions of the Standard Model, its main annihilation channel is into W+W-, while the annihilation into light fermions is helicity suppressed. As pointed out recently, the radiation of gauge bosons from the in...
hep-ph/0405203
Mikhail Braun
M.A.Braun and C.Pajares
Colour strings vs. hard pomeron in perturbative QCD
10 pages, 8 figures
null
10.1016/j.physletb.2004.10.006
null
hep-ph
null
Average multiplicities and transverse momenta in AA collisions are studied in the soft and hard regions, in fusing string and perturbative QCD scenarios respectively. Striking similarities are found between the predictions of the two approaches. Multiplicities per string and average p_t^2 are found to, respectively, ...
[ { "created": "Fri, 21 May 2004 08:57:24 GMT", "version": "v1" } ]
2009-11-10
[ [ "Braun", "M. A.", "" ], [ "Pajares", "C.", "" ] ]
Average multiplicities and transverse momenta in AA collisions are studied in the soft and hard regions, in fusing string and perturbative QCD scenarios respectively. Striking similarities are found between the predictions of the two approaches. Multiplicities per string and average p_t^2 are found to, respectively, dr...
1106.2400
Mikhail Smolyakov
E.E. Boos, M.A. Perfilov, M.N. Smolyakov, I.P. Volobuev
Searches for W' and Z' in models with large extra dimensions
7 pages, 4 figures, added reference, corrected misprints. Talk given at 16th International Seminar on High Energy Physics "QUARKS-2010", Kolomna, Russia, 6-12 June, 2010. To appear in Theor. Math. Phys
Theor.Math.Phys.170: 90-96, 2012
10.1007/s11232-012-0009-6
SINP MSU 2011-1/865
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Characteristic features of processes mediated by gauge bosons are discussed in the framework of theories with large extra dimensions. It is shown that if gauge bosons propagate in the bulk, then there arises a destructive interference not only between W and W' (or Z and Z'), but also between W' and Z' and the Kaluza-...
[ { "created": "Mon, 13 Jun 2011 08:47:19 GMT", "version": "v1" }, { "created": "Mon, 11 Jul 2011 10:50:46 GMT", "version": "v2" } ]
2015-05-28
[ [ "Boos", "E. E.", "" ], [ "Perfilov", "M. A.", "" ], [ "Smolyakov", "M. N.", "" ], [ "Volobuev", "I. P.", "" ] ]
Characteristic features of processes mediated by gauge bosons are discussed in the framework of theories with large extra dimensions. It is shown that if gauge bosons propagate in the bulk, then there arises a destructive interference not only between W and W' (or Z and Z'), but also between W' and Z' and the Kaluza-Kl...
1905.03280
Sven Heinemeyer
T. Biek\"otter, M. Chakraborti, S. Heinemeyer
An N2HDM Solution for the possible 96 GeV Excess
23 pages, 7 figures. Talk given by S.H. at the Corfu Summer Institute 2018 "School and Workshops on Elementary Particle Physics and Gravity" (CORFU2018) 31 August - 28 September, 2018 Corfu, Greece; based on arXiv:1903.11661
null
null
IFT-UAM/CSIC-19-064
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss a ~3 sigma signal (local) in the light Higgs-boson search in the diphoton decay mode at ~96 GeV as reported by CMS, together with a ~2 sigma excess (local) in the bb final state at LEP in the same mass range. We review the interpretation of this possible signal as a Higgs boson in the 2~Higgs Doublet Model...
[ { "created": "Wed, 8 May 2019 18:13:36 GMT", "version": "v1" } ]
2019-05-10
[ [ "Biekötter", "T.", "" ], [ "Chakraborti", "M.", "" ], [ "Heinemeyer", "S.", "" ] ]
We discuss a ~3 sigma signal (local) in the light Higgs-boson search in the diphoton decay mode at ~96 GeV as reported by CMS, together with a ~2 sigma excess (local) in the bb final state at LEP in the same mass range. We review the interpretation of this possible signal as a Higgs boson in the 2~Higgs Doublet Model w...
2302.07008
Hiroshi Okada
Ujjal Kumar Dey, Hiroshi Okada
A hidden gauged $U(1)$ addressing radiative neutrino mass, dark matter, $(g-2)_{\mu}$, and $H_0$ tension
18 pages, 4 figures, and 1 table
null
null
null
hep-ph
http://creativecommons.org/publicdomain/zero/1.0/
We propose a radiative seesaw model with a hidden $U(1)$ gauge symmetry. In order to have anomaly cancellations, we need to introduce several new fermions that contribute to muon anomalous magnetic dipole moment $(g-2)_\mu$ as well as explain the neutrino oscillation data. We also consider a fermionic dark matter can...
[ { "created": "Tue, 14 Feb 2023 12:33:16 GMT", "version": "v1" } ]
2023-02-15
[ [ "Dey", "Ujjal Kumar", "" ], [ "Okada", "Hiroshi", "" ] ]
We propose a radiative seesaw model with a hidden $U(1)$ gauge symmetry. In order to have anomaly cancellations, we need to introduce several new fermions that contribute to muon anomalous magnetic dipole moment $(g-2)_\mu$ as well as explain the neutrino oscillation data. We also consider a fermionic dark matter candi...
hep-ph/9805457
Takayuki Hirayama
T.Hirayama, N.Ishimura and N.Maekawa
A Model with Simultaneous Dynamical Breaking of Supersymmetry and GUT Gauge Symmetry
9 pages; a reference added
Prog.Theor.Phys. 101 (1999) 1343-1351
10.1143/PTP.101.1343
KUNS-1511
hep-ph
null
We try to construct a model in which supersymmetry and grand unified gauge symmetry are dynamically broken at the same time. In this model SUSY breaking is mediated mainly by massive vector multiplet, and a new solution for the mu problem is proposed.
[ { "created": "Tue, 26 May 1998 06:37:48 GMT", "version": "v1" }, { "created": "Fri, 5 Jun 1998 09:48:37 GMT", "version": "v2" } ]
2009-10-31
[ [ "Hirayama", "T.", "" ], [ "Ishimura", "N.", "" ], [ "Maekawa", "N.", "" ] ]
We try to construct a model in which supersymmetry and grand unified gauge symmetry are dynamically broken at the same time. In this model SUSY breaking is mediated mainly by massive vector multiplet, and a new solution for the mu problem is proposed.
hep-ph/9905335
Javier M. Hernandez
J.L. Diaz-Cruz, J.M. Hernandez and J.J. Toscano
Impacts of the bounds on the Higgs mass and m_W on effective theories
8 pages, 3 ps figures, uses elsevier style
Mod.Phys.Lett. A15 (2000) 1377-1384
10.1142/S0217732300001468
null
hep-ph
null
We study the inter-relations that exist between the present experimental bounds on the Higgs mass, as obtained from radiative corrections to $m_W$, and the effective parameters, $\alpha_i$ and $\Lambda$. We find that the SM bounds on $m_H$, arising from a precise determination of the $m_W$ mass, can be substantially ...
[ { "created": "Thu, 13 May 1999 20:37:19 GMT", "version": "v1" } ]
2009-10-31
[ [ "Diaz-Cruz", "J. L.", "" ], [ "Hernandez", "J. M.", "" ], [ "Toscano", "J. J.", "" ] ]
We study the inter-relations that exist between the present experimental bounds on the Higgs mass, as obtained from radiative corrections to $m_W$, and the effective parameters, $\alpha_i$ and $\Lambda$. We find that the SM bounds on $m_H$, arising from a precise determination of the $m_W$ mass, can be substantially mo...
1204.5678
John M. Campbell
John M. Campbell and R. Keith Ellis
t \bar{t} W production and decay at NLO
10 pages, 7 figures
null
10.1007/JHEP07(2012)052
FERMILAB-PUB-12-109-T
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present results for the production of a top pair in association with a W-boson at next-to-leading order. We have implemented this process into the parton-level integrator MCFM including the decays of both the top quarks and the W-bosons with full spin correlations. Although the cross section for this process is sm...
[ { "created": "Wed, 25 Apr 2012 15:18:09 GMT", "version": "v1" } ]
2015-06-04
[ [ "Campbell", "John M.", "" ], [ "Ellis", "R. Keith", "" ] ]
We present results for the production of a top pair in association with a W-boson at next-to-leading order. We have implemented this process into the parton-level integrator MCFM including the decays of both the top quarks and the W-bosons with full spin correlations. Although the cross section for this process is smal...
hep-ph/0610079
Oliver Brein
Oliver Brein and Thomas Hahn
On MSSM charged Higgs boson production in association with an electroweak W boson at electron positron colliders
25 pages, 10 figures (two in colour). Substantially improved on the MSSM parameter restrictions taken into account. Added some references
Eur.Phys.J.C52:397-411,2007
10.1140/epjc/s10052-007-0397-1
IPPP/06/67, DCPT/06/134, MPP-2006-128
hep-ph hep-ex
null
We present a calculation of the cross section for the process e+ e- --> W+/- H-/+ in the minimal supersymmetric standard model (MSSM) and the Two Higgs Doublet Model (THDM). We study the basic features of the MSSM prediction for some distinctive parameter scenarios. We find large effects from virtual squarks for scen...
[ { "created": "Fri, 6 Oct 2006 16:05:07 GMT", "version": "v1" }, { "created": "Fri, 23 Mar 2007 16:23:17 GMT", "version": "v2" } ]
2010-10-27
[ [ "Brein", "Oliver", "" ], [ "Hahn", "Thomas", "" ] ]
We present a calculation of the cross section for the process e+ e- --> W+/- H-/+ in the minimal supersymmetric standard model (MSSM) and the Two Higgs Doublet Model (THDM). We study the basic features of the MSSM prediction for some distinctive parameter scenarios. We find large effects from virtual squarks for scenar...
0711.4461
Liana Abesalashvili
L.N.Abesalashvili, L.T.Akhobadze
Description of Multiparticle Production by Gluon Dominance Model
25 pages, 9 figures
null
null
null
hep-ph
null
The obtained $\pi^{-}$ and charged multiplicity distribution parameters of Gluon Dominance Model explain the experimental data in nucleus-nucleus, p nucleus, pd, pp, p antip and $\pi^{-}$(p,n) interactions. We have undertaken an attempt to give description in different processes of multiparticle production by means o...
[ { "created": "Wed, 28 Nov 2007 11:02:14 GMT", "version": "v1" } ]
2007-11-29
[ [ "Abesalashvili", "L. N.", "" ], [ "Akhobadze", "L. T.", "" ] ]
The obtained $\pi^{-}$ and charged multiplicity distribution parameters of Gluon Dominance Model explain the experimental data in nucleus-nucleus, p nucleus, pd, pp, p antip and $\pi^{-}$(p,n) interactions. We have undertaken an attempt to give description in different processes of multiparticle production by means of ...
hep-ph/9808451
Utpal Sarkar
Subhendra Mohanty, D.P. Roy and Utpal Sarkar
Texture of a Four-Neutrino Mass Matrix
11 pages latex file; Revised version (to be published in Phys. Lett. B)
Phys.Lett. B445 (1998) 185-190
10.1016/S0370-2693(98)01481-6
DESY 98-117
hep-ph
null
We propose a simple texture of the neutrino mass matrix with one sterile neutrino along with the three standard ones. It gives maximal mixing angles for $\nu_e \to \nu_S$ and $\nu_\mu \to \nu_\tau$ oscillations or vice versa. Thus with only four parameters, this mass matrix can explain the solar neutrino anomaly, atm...
[ { "created": "Fri, 28 Aug 1998 10:16:20 GMT", "version": "v1" }, { "created": "Fri, 25 Sep 1998 18:41:46 GMT", "version": "v2" }, { "created": "Fri, 20 Nov 1998 12:24:52 GMT", "version": "v3" } ]
2009-10-31
[ [ "Mohanty", "Subhendra", "" ], [ "Roy", "D. P.", "" ], [ "Sarkar", "Utpal", "" ] ]
We propose a simple texture of the neutrino mass matrix with one sterile neutrino along with the three standard ones. It gives maximal mixing angles for $\nu_e \to \nu_S$ and $\nu_\mu \to \nu_\tau$ oscillations or vice versa. Thus with only four parameters, this mass matrix can explain the solar neutrino anomaly, atmos...
1806.11344
Stefano Gariazzo
S. Gariazzo
Neutrino mass eigenstates and their ordering: a Bayesian approach
3 pages, 2 figures. To appear in the Proceedings of Incontri di Fisica delle Alte Energie (IFAE) 2018
null
null
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
One of the not-yet determined properties of neutrinos is the ordering of their mass eigenstates. We combine the available data from neutrino oscillations, neutrinoless double beta decay and Cosmic Microwave Background observations to derive robust constraints on the mass ordering in a Bayesian context. Based on arxiv...
[ { "created": "Fri, 29 Jun 2018 10:39:52 GMT", "version": "v1" } ]
2018-07-02
[ [ "Gariazzo", "S.", "" ] ]
One of the not-yet determined properties of neutrinos is the ordering of their mass eigenstates. We combine the available data from neutrino oscillations, neutrinoless double beta decay and Cosmic Microwave Background observations to derive robust constraints on the mass ordering in a Bayesian context. Based on arxiv:1...
1202.3895
Vladimir Skalozub
E. Elizalde and V. Skalozub
Spontaneous magnetization of the vacuum and the strength of the magnetic field in the hot Universe
18 pages. arXiv admin note: substantial text overlap with arXiv:1106.4962
Eur.Phys.J. (2012) 72:1968
10.1140/epjc/s10052-012-1968-3
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Intergalactic magnetic fields are assumed to have been spontaneously generated at the reheating stage of the early Universe, due to vacuum polarization of non-Abelian gauge fields at high temperature. The fact that the screening mass of this type of fields has zero value was discovered recently. A procedure to estima...
[ { "created": "Fri, 17 Feb 2012 12:29:36 GMT", "version": "v1" } ]
2015-06-04
[ [ "Elizalde", "E.", "" ], [ "Skalozub", "V.", "" ] ]
Intergalactic magnetic fields are assumed to have been spontaneously generated at the reheating stage of the early Universe, due to vacuum polarization of non-Abelian gauge fields at high temperature. The fact that the screening mass of this type of fields has zero value was discovered recently. A procedure to estimate...
hep-ph/0102085
Paul Langacker
Paul Langacker
Physics Implications of Precision Electroweak Experiments
27 pages, 7 figures. Based on invited talks presented at the LEP Fest 2000, CERN, October 2000, and the Alberto Sirlin Symposium, New York University, October 2000
J.Phys.G29:35-48,2003
10.1088/0954-3899/29/1/305
UPR-0925T
hep-ph hep-ex
null
A brief review is given of precision electroweak physics, and its implications for establishing the standard model and constraining the possibilities for new physics at the TeV scale and beyond.
[ { "created": "Wed, 7 Feb 2001 18:10:55 GMT", "version": "v1" } ]
2008-11-26
[ [ "Langacker", "Paul", "" ] ]
A brief review is given of precision electroweak physics, and its implications for establishing the standard model and constraining the possibilities for new physics at the TeV scale and beyond.
0707.3446
Michael Salem
Lawrence J. Hall, Michael P. Salem and Taizan Watari
Statistical Understanding of Quark and Lepton Masses in Gaussian Landscapes
86 pages, 26 figures, 2 tables, and table of contents
Phys.Rev.D76:093001,2007
10.1103/PhysRevD.76.093001
UCB-PTH-07/12, LBNL-62798, CALT-68-2654, UT-07-19
hep-ph hep-th
null
The fundamental theory of nature may allow a large landscape of vacua. Even if the theory contains a unified gauge symmetry, the 22 flavor parameters of the Standard Model, including neutrino masses, may be largely determined by the statistics of this landscape, and not by any symmetry. Then the measured values of th...
[ { "created": "Tue, 24 Jul 2007 16:25:50 GMT", "version": "v1" }, { "created": "Fri, 10 Aug 2007 12:16:38 GMT", "version": "v2" } ]
2008-12-18
[ [ "Hall", "Lawrence J.", "" ], [ "Salem", "Michael P.", "" ], [ "Watari", "Taizan", "" ] ]
The fundamental theory of nature may allow a large landscape of vacua. Even if the theory contains a unified gauge symmetry, the 22 flavor parameters of the Standard Model, including neutrino masses, may be largely determined by the statistics of this landscape, and not by any symmetry. Then the measured values of the ...
2308.09337
Raghunath Sahoo
Kshitish Kumar Pradhan, Ronald Scaria, Dushmanta Sahu, and Raghunath Sahoo
Proton number cumulants in a modified van der Waals hadron resonance gas
9-pages and 6-captioned figures, Submitted for publication
null
null
null
hep-ph hep-ex nucl-ex nucl-th
http://creativecommons.org/licenses/by-sa/4.0/
An estimate of the proton number cumulants in the hadronic matter is presented considering a van der Waals-type interaction between the constituent particles. We argue that the attractive and repulsive parameters in the VDW hadron resonance gas (VDWHRG) model change as functions of baryochemical potential ($\mu_{B}$)...
[ { "created": "Fri, 18 Aug 2023 06:43:05 GMT", "version": "v1" } ]
2023-08-21
[ [ "Pradhan", "Kshitish Kumar", "" ], [ "Scaria", "Ronald", "" ], [ "Sahu", "Dushmanta", "" ], [ "Sahoo", "Raghunath", "" ] ]
An estimate of the proton number cumulants in the hadronic matter is presented considering a van der Waals-type interaction between the constituent particles. We argue that the attractive and repulsive parameters in the VDW hadron resonance gas (VDWHRG) model change as functions of baryochemical potential ($\mu_{B}$) a...
hep-ph/0106217
Haim Goldberg
Luis A. Anchordoqui and Haim Goldberg
A lower bound on the local extragalactic magnetic field
Includes extensive discussion of particle acceleration above 10^20 eV in the hot spot-like region of Cen A
Phys.Rev. D65 (2002) 021302
10.1103/PhysRevD.65.021302
NUB-3217/Th-01
hep-ph astro-ph
null
Assuming that the hard gamma-ray emission of Cen A is a result of synchrotron radiation of ultra-relativistic electrons, we derive a lower bound on the local extragalactic magnetic field, $B> 10^{-8}$ G. This result is consistent with (and close to) upper bounds on magnetic fields derived from consideration of cosmic...
[ { "created": "Tue, 19 Jun 2001 15:30:04 GMT", "version": "v1" }, { "created": "Wed, 20 Jun 2001 17:50:43 GMT", "version": "v2" }, { "created": "Tue, 16 Oct 2001 21:17:47 GMT", "version": "v3" } ]
2009-11-07
[ [ "Anchordoqui", "Luis A.", "" ], [ "Goldberg", "Haim", "" ] ]
Assuming that the hard gamma-ray emission of Cen A is a result of synchrotron radiation of ultra-relativistic electrons, we derive a lower bound on the local extragalactic magnetic field, $B> 10^{-8}$ G. This result is consistent with (and close to) upper bounds on magnetic fields derived from consideration of cosmic m...
hep-ph/9512398
Bhaskar Dutta
N. G. Deshpande, B. Dutta and E. Keith
Intermediate scale as a source of lepton flavor violation in SUSY SO(10)
12 pages (Latex), 3 PS Figures (uuencoded, epsf.tex), small addition to discussion in the text, as to appear in Phys. Rev. D Rapid Communications
Phys.Rev.D54:730-734,1996
10.1103/PhysRevD.54.R730
OITS-595, UCRHEP-T157
hep-ph
null
In supersymmetric SO(10) grand unified models, we examine the lepton flavor violation process $\mu \rightarrow e\gamma$ from having the SU(2)$_R\times $U(1)$_{B-L}$ gauge symmetry broken at an intermediate scale $M_I$ below the SO(10) grand unification scale $M_G$. Even in the case that supersymmetry is broken by uni...
[ { "created": "Fri, 22 Dec 1995 00:55:52 GMT", "version": "v1" }, { "created": "Fri, 24 May 1996 01:04:13 GMT", "version": "v2" } ]
2009-09-28
[ [ "Deshpande", "N. G.", "" ], [ "Dutta", "B.", "" ], [ "Keith", "E.", "" ] ]
In supersymmetric SO(10) grand unified models, we examine the lepton flavor violation process $\mu \rightarrow e\gamma$ from having the SU(2)$_R\times $U(1)$_{B-L}$ gauge symmetry broken at an intermediate scale $M_I$ below the SO(10) grand unification scale $M_G$. Even in the case that supersymmetry is broken by unive...
1807.00256
Henry Lamm
Thomas D. Cohen, Henry Lamm, Richard F. Lebed
Tests of the Standard Model in $B \to D\ell \nu_\ell$, $B \to D^* \ell \nu_\ell$ and $B_c \to J/\psi \, \ell \nu_\ell$
11 pages, 1 figure, additional references and discussion
Phys. Rev. D 98, 034022 (2018)
10.1103/PhysRevD.98.034022
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A number of recent experimental measurements suggest the possibility of a breakdown of lepton ($\ell$) universality in exclusive $b \to c \ell \nu_\ell$ semileptonic meson decays. We analyze the full differential decay rates for several such processes, and show how to extract combinations of the underlying helicity a...
[ { "created": "Sun, 1 Jul 2018 02:19:49 GMT", "version": "v1" }, { "created": "Tue, 10 Jul 2018 02:36:33 GMT", "version": "v2" } ]
2018-08-29
[ [ "Cohen", "Thomas D.", "" ], [ "Lamm", "Henry", "" ], [ "Lebed", "Richard F.", "" ] ]
A number of recent experimental measurements suggest the possibility of a breakdown of lepton ($\ell$) universality in exclusive $b \to c \ell \nu_\ell$ semileptonic meson decays. We analyze the full differential decay rates for several such processes, and show how to extract combinations of the underlying helicity amp...
2404.10871
Ijaz Ahmed
Ijaz Ahmed, Sidra Swalheen, Mansoor Ur Rehman, Rimsha Tariq
Magnetic Monopole Phenomenology at Future Hadron Colliders
22 pages, 15 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the grand tapestry of Physics, the magnetic monopole is a holy grail. Therefore, numerous efforts are underway in search of this hypothetical particle at CMS, ATLAS and MoEDAL experiments of LHC by employing different production mechanisms. The cornerstone of our comprehension of monopoles lies in Dirac's theory w...
[ { "created": "Tue, 16 Apr 2024 19:41:21 GMT", "version": "v1" } ]
2024-04-18
[ [ "Ahmed", "Ijaz", "" ], [ "Swalheen", "Sidra", "" ], [ "Rehman", "Mansoor Ur", "" ], [ "Tariq", "Rimsha", "" ] ]
In the grand tapestry of Physics, the magnetic monopole is a holy grail. Therefore, numerous efforts are underway in search of this hypothetical particle at CMS, ATLAS and MoEDAL experiments of LHC by employing different production mechanisms. The cornerstone of our comprehension of monopoles lies in Dirac's theory whi...
hep-ph/0410228
Jacques Soffer
Jacques Soffer and Oleg Teryaev
QCD radiative and power corrections and Generalized GDH sum rules
10 pages, 4 figures (to be published in Physical Review D)
Phys.Rev. D70 (2004) 116004
10.1103/PhysRevD.70.116004
CPT-2004/P.017
hep-ph
null
We extend the earlier suggested QCD-motivated model for the $Q^2$-dependence of the generalized Gerasimov-Drell-Hearn (GDH) sum rule which assumes the smooth dependence of the structure function $g_T$, while the sharp dependence is due to the $g_2$ contribution and is described by the elastic part of the Burkhardt-Co...
[ { "created": "Fri, 15 Oct 2004 12:50:10 GMT", "version": "v1" } ]
2009-11-10
[ [ "Soffer", "Jacques", "" ], [ "Teryaev", "Oleg", "" ] ]
We extend the earlier suggested QCD-motivated model for the $Q^2$-dependence of the generalized Gerasimov-Drell-Hearn (GDH) sum rule which assumes the smooth dependence of the structure function $g_T$, while the sharp dependence is due to the $g_2$ contribution and is described by the elastic part of the Burkhardt-Cott...
1006.3766
Scott A. Yost
Nadia Adam, Valerie Halyo, Scott A. Yost
Theoretical Uncertainties in Electroweak Boson Production Cross Sections at 7, 10, and 14 TeV at the LHC
PDFLatex with JHEP3.cls. 22 pages, 43 figures. Version 2 adds the CT10W PDF set to analysis and updates the final systematic error table and conclusions, plus several citations and minor wording changes. Version 3 adds some references on electroweak and mixed QED/QCD corrections. Version 4 adds more references ...
JHEP 1011:074,2010
10.1007/JHEP11(2010)074
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present an updated study of the systematic errors in the measurements of the electroweak boson cross-sections at the LHC for various experimental cuts for a center of mass energy of 7, 10 and 14 TeV. The size of both electroweak and NNLO QCD contributions are estimated, together with the systematic error from the ...
[ { "created": "Fri, 18 Jun 2010 18:09:47 GMT", "version": "v1" }, { "created": "Thu, 15 Jul 2010 16:03:03 GMT", "version": "v2" }, { "created": "Fri, 16 Jul 2010 17:45:55 GMT", "version": "v3" }, { "created": "Mon, 30 Aug 2010 22:06:38 GMT", "version": "v4" } ]
2011-02-16
[ [ "Adam", "Nadia", "" ], [ "Halyo", "Valerie", "" ], [ "Yost", "Scott A.", "" ] ]
We present an updated study of the systematic errors in the measurements of the electroweak boson cross-sections at the LHC for various experimental cuts for a center of mass energy of 7, 10 and 14 TeV. The size of both electroweak and NNLO QCD contributions are estimated, together with the systematic error from the pa...
hep-ph/0307197
Luis Oliver
A. Le Yaouanc, L. Oliver and J.-C. Raynal
Lower bounds on the curvature of the Isgur-Wise function
39 pages, 2 figures
Phys.Rev. D69 (2004) 094022
10.1103/PhysRevD.69.094022
LPT Orsay 02-108
hep-ph
null
Using the OPE, we obtain new sum rules in the heavy quark limit of QCD, in addition to those previously formulated. Key elements in their derivation are the consideration of the non-forward amplitude, plus the systematic use of boundary conditions that ensure that only a finite number of $j^P$ intermediate states (wi...
[ { "created": "Tue, 15 Jul 2003 16:16:38 GMT", "version": "v1" } ]
2009-11-10
[ [ "Yaouanc", "A. Le", "" ], [ "Oliver", "L.", "" ], [ "Raynal", "J. -C.", "" ] ]
Using the OPE, we obtain new sum rules in the heavy quark limit of QCD, in addition to those previously formulated. Key elements in their derivation are the consideration of the non-forward amplitude, plus the systematic use of boundary conditions that ensure that only a finite number of $j^P$ intermediate states (with...
1202.0486
Yusuke Shimizu
Atsushi Hayakawa, Yusuke Shimizu, Morimitsu Tanimoto, Kei Yamamoto
Squark flavor mixing and CP asymmetry of neutral $B$ mesons at LHCb
16 pages, 14 figures, 2 figures are added, minor modifications
null
10.1016/j.physletb.2012.03.020
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The CP violation of the neutral $B$ meson is the important phenomenon to search for the new physics. The like-sign dimuon charge asymmetry observed by the D$\O$ Collaboration indicates the CP-violating new physics in the $B_s-\bar B_s$ mixing. On the other hand, LHCb observed the CP-violating asymmetry in $B_s^0\to J...
[ { "created": "Thu, 2 Feb 2012 17:00:40 GMT", "version": "v1" }, { "created": "Thu, 9 Feb 2012 11:29:40 GMT", "version": "v2" }, { "created": "Tue, 6 Mar 2012 10:30:03 GMT", "version": "v3" } ]
2015-06-04
[ [ "Hayakawa", "Atsushi", "" ], [ "Shimizu", "Yusuke", "" ], [ "Tanimoto", "Morimitsu", "" ], [ "Yamamoto", "Kei", "" ] ]
The CP violation of the neutral $B$ meson is the important phenomenon to search for the new physics. The like-sign dimuon charge asymmetry observed by the D$\O$ Collaboration indicates the CP-violating new physics in the $B_s-\bar B_s$ mixing. On the other hand, LHCb observed the CP-violating asymmetry in $B_s^0\to J/\...
hep-ph/9410403
Cliff Burgess
A. Marini and C.P. Burgess
A Renormalization-Group Approach to Finite-Temperature Mass Corrections
plain TeX, 6 pages plus 1 figure attached, McGill-94/01
null
null
null
hep-ph
null
We illustrate how the reorganization of perturbation theory at finite temperature can be economically cast in terms of the Wilson-Polchinski renormalization methods. We take as an example the old saw of the induced thermal mass of a hot scalar field with a quartic coupling, which we compute to second order in the cou...
[ { "created": "Fri, 28 Oct 1994 19:11:19 GMT", "version": "v1" } ]
2007-05-23
[ [ "Marini", "A.", "" ], [ "Burgess", "C. P.", "" ] ]
We illustrate how the reorganization of perturbation theory at finite temperature can be economically cast in terms of the Wilson-Polchinski renormalization methods. We take as an example the old saw of the induced thermal mass of a hot scalar field with a quartic coupling, which we compute to second order in the coupl...
1410.4203
Jacopo Ghiglieri
Jacopo Ghiglieri, Guy D. Moore
Low Mass Thermal Dilepton Production at NLO in a Weakly Coupled Quark-Gluon Plasma
24 pages plus appendices, 17 figures. v2: fixed a caption, removed unneeded .pdf files. v3: minor clarifications, matches journal version
JHEP12(2014)029
10.1007/JHEP12(2014)029
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a computation, within weakly-coupled thermal QCD, of the production rate of low invariant mass ($M^2 \sim g^2 T^2$) dileptons, at next-to-leading order (NLO) in the coupling (which is $O(g^3 e^2 T^2)$). This involves extending the NLO calculation of the photon rate which we recently presented to the case o...
[ { "created": "Wed, 15 Oct 2014 20:01:16 GMT", "version": "v1" }, { "created": "Mon, 20 Oct 2014 15:44:42 GMT", "version": "v2" }, { "created": "Wed, 3 Dec 2014 12:16:10 GMT", "version": "v3" } ]
2014-12-05
[ [ "Ghiglieri", "Jacopo", "" ], [ "Moore", "Guy D.", "" ] ]
We present a computation, within weakly-coupled thermal QCD, of the production rate of low invariant mass ($M^2 \sim g^2 T^2$) dileptons, at next-to-leading order (NLO) in the coupling (which is $O(g^3 e^2 T^2)$). This involves extending the NLO calculation of the photon rate which we recently presented to the case of ...
1401.5217
Alexander Dolgov
A.D. Dolgov, V.A. Novikov
A cosmological bound on $e^+ e^-$ mass difference
8 pages
null
10.1016/j.physletb.2014.03.058
null
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We demonstrate that CPT-violation due to $e^+ e^-$ mass difference generates a non-zero photon mass. As a result the cosmological bounds on the photon mass lead to the bounds on $e^+ e^-$ mass difference which are at least by 10 orders of magnitude stronger than the direct experimental bound.
[ { "created": "Tue, 21 Jan 2014 08:34:57 GMT", "version": "v1" } ]
2015-06-18
[ [ "Dolgov", "A. D.", "" ], [ "Novikov", "V. A.", "" ] ]
We demonstrate that CPT-violation due to $e^+ e^-$ mass difference generates a non-zero photon mass. As a result the cosmological bounds on the photon mass lead to the bounds on $e^+ e^-$ mass difference which are at least by 10 orders of magnitude stronger than the direct experimental bound.
1507.07926
Dorival Goncalves
Matthew R. Buckley and Dorival Goncalves
Boosting the Direct CP Measurement of the Higgs-Top Coupling
v1: 6 pages, 5 figures and 1 table; v2: matches the PRL version
Phys. Rev. Lett. 116, 091801 (2016)
10.1103/PhysRevLett.116.091801
IPPP/15/49, DCPT/15/98
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Characterizing the 125 GeV Higgs is a critical component of the physics program at the LHC Run II. In this Letter, we consider $t\bar{t}H$ associated production in the dileptonic mode. We demonstrate that the difference in azimuthal angle between the leptons from top decays can directly reveal the CP-structure of the...
[ { "created": "Tue, 28 Jul 2015 20:00:32 GMT", "version": "v1" }, { "created": "Thu, 3 Mar 2016 15:30:26 GMT", "version": "v2" } ]
2016-03-09
[ [ "Buckley", "Matthew R.", "" ], [ "Goncalves", "Dorival", "" ] ]
Characterizing the 125 GeV Higgs is a critical component of the physics program at the LHC Run II. In this Letter, we consider $t\bar{t}H$ associated production in the dileptonic mode. We demonstrate that the difference in azimuthal angle between the leptons from top decays can directly reveal the CP-structure of the t...
hep-ph/0405280
Je-An Gu
Je-An Gu
The Interplay of Ultrahigh-Energy Cosmic Rays and Extra Dimensions
5 pages, LaTeX. Contribution to 2003 International Symposium on Cosmology and Particle Astrophysics (CosPA 2003), Taipei, Taiwan, 13-15 Nov 2003
Mod.Phys.Lett. A19 (2004) 1133-1136
10.1142/S0217732304014471
null
hep-ph astro-ph hep-th
null
Regarding ultrahigh-energy cosmic rays (UHECRs) as a probe and extra dimensions as a possible ingredient of the fantastic ultrahigh-energy world, we discuss possible interplay between them. On the one hand small extra dimensions and Kaluza-Klein bursts present a feasible way to the origin of UHECRs. On the other hand...
[ { "created": "Fri, 28 May 2004 10:10:39 GMT", "version": "v1" } ]
2009-11-10
[ [ "Gu", "Je-An", "" ] ]
Regarding ultrahigh-energy cosmic rays (UHECRs) as a probe and extra dimensions as a possible ingredient of the fantastic ultrahigh-energy world, we discuss possible interplay between them. On the one hand small extra dimensions and Kaluza-Klein bursts present a feasible way to the origin of UHECRs. On the other hand l...
hep-ph/0609108
Wei-Min Sun
Hong-shi Zong, Deng-ke He, Feng-yao Hou, Wei-Min Sun
General formula for the four-quark condensate and vacuum factorization assumption
Revtex4, 11 pages, no figures
Int.J.Mod.Phys.A23:1507-1520,2008
10.1142/S0217751X08039700
null
hep-ph
null
By differentiating the dressed quark propagator with respect to a variable background field, the linear response of the dressed quark propagator in the presence of the background field can be obtained. From this general method, using the vector background field as an illustration, we derive a general formula for the ...
[ { "created": "Tue, 12 Sep 2006 01:42:40 GMT", "version": "v1" } ]
2008-11-26
[ [ "Zong", "Hong-shi", "" ], [ "He", "Deng-ke", "" ], [ "Hou", "Feng-yao", "" ], [ "Sun", "Wei-Min", "" ] ]
By differentiating the dressed quark propagator with respect to a variable background field, the linear response of the dressed quark propagator in the presence of the background field can be obtained. From this general method, using the vector background field as an illustration, we derive a general formula for the fo...
2008.10650
Julio Leite
Alex G. Dias, Julio Leite, Jos\'e W. F. Valle, and Carlos A. Vaquera-Araujo
Reloading the Axion in a 3-3-1 setup
16 pages, 1 table, 2 figures. v2: matches the accepted version to appear in PLB
null
10.1016/j.physletb.2020.135829
IFIC/20-XXX
hep-ph hep-ex hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We generalize the idea of the axion to an extended electroweak gauge symmetry setup. We propose a minimal axion extension of the Singer-Valle-Schechter (SVS) theory, in which the standard model fits in $\mathrm{SU(3)_L\otimes U(1)_X}$, the number of families results from anomaly cancellation, and the Peccei-Quinn (PQ...
[ { "created": "Mon, 24 Aug 2020 18:45:29 GMT", "version": "v1" }, { "created": "Tue, 6 Oct 2020 17:41:21 GMT", "version": "v2" } ]
2020-10-07
[ [ "Dias", "Alex G.", "" ], [ "Leite", "Julio", "" ], [ "Valle", "José W. F.", "" ], [ "Vaquera-Araujo", "Carlos A.", "" ] ]
We generalize the idea of the axion to an extended electroweak gauge symmetry setup. We propose a minimal axion extension of the Singer-Valle-Schechter (SVS) theory, in which the standard model fits in $\mathrm{SU(3)_L\otimes U(1)_X}$, the number of families results from anomaly cancellation, and the Peccei-Quinn (PQ) ...
0904.0318
Rumin Wang
C. S. Kim and Ru-Min Wang
Studying Exclusive Semi-leptonic $b\to (s,d) \nu \bar{\nu}$ Decays in the MSSM without R-parity
17 pages, 4 figures, inclusive decays considered, references added
Phys.Lett.B681:44-51,2009
10.1016/j.physletb.2009.09.054
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a complete study of R-parity violating supersymmetric effects in thirteen exclusive and inclusive semi-leptonic $b \to (s,d) \nu \bar{\nu}$ decays, including $B^+_u\to K^{(*)+}\nu\bar{\nu}$, $B^0_d\to K^{(*)0}\nu\bar{\nu}$, $B^0_s\to \phi\nu\bar{\nu}$, $B^0_d\to \pi^0(\rho^0)\nu\bar{\nu}$, $B^+_u\to \pi^+(...
[ { "created": "Thu, 2 Apr 2009 06:33:25 GMT", "version": "v1" }, { "created": "Mon, 24 Aug 2009 16:23:10 GMT", "version": "v2" } ]
2009-11-19
[ [ "Kim", "C. S.", "" ], [ "Wang", "Ru-Min", "" ] ]
We present a complete study of R-parity violating supersymmetric effects in thirteen exclusive and inclusive semi-leptonic $b \to (s,d) \nu \bar{\nu}$ decays, including $B^+_u\to K^{(*)+}\nu\bar{\nu}$, $B^0_d\to K^{(*)0}\nu\bar{\nu}$, $B^0_s\to \phi\nu\bar{\nu}$, $B^0_d\to \pi^0(\rho^0)\nu\bar{\nu}$, $B^+_u\to \pi^+(\r...
hep-ph/0205312
Bernd Andreas Kniehl
Bernd A. Kniehl (CERN), Fantina Madricardo, Matthias Steinhauser (Hamburg U.)
QCD Corrections to t anti-b H^- Associated Production in e^+ e^- Annihilation
21 pages (Latex), 8 figures (Postscript); detailed discussion of scheme and scale dependences added
Phys.Rev.D66:054016,2002
10.1103/PhysRevD.66.054016
CERN-TH/2002-095, DESY 02-057
hep-ph
null
We calculate the QCD corrections to the cross section of e^+ e^- -> t anti-b H^- and its charge-conjugate counterpart within the minimal supersymmetric extension of the Standard Model. This process is particularly important if m_t < m_H + m_b and root(s) < 2 m_H, so that t -> b H^+ and e^+ e^- -> H^+ H^- are not allo...
[ { "created": "Tue, 28 May 2002 15:44:16 GMT", "version": "v1" }, { "created": "Fri, 12 Jul 2002 17:36:22 GMT", "version": "v2" } ]
2011-08-17
[ [ "Kniehl", "Bernd A.", "", "CERN" ], [ "Madricardo", "Fantina", "", "Hamburg U." ], [ "Steinhauser", "Matthias", "", "Hamburg U." ] ]
We calculate the QCD corrections to the cross section of e^+ e^- -> t anti-b H^- and its charge-conjugate counterpart within the minimal supersymmetric extension of the Standard Model. This process is particularly important if m_t < m_H + m_b and root(s) < 2 m_H, so that t -> b H^+ and e^+ e^- -> H^+ H^- are not allowe...
1405.6647
Ulrich Ellwanger
Ulrich Ellwanger, Cyril Hugonie
The semi-constrained NMSSM satisfying bounds from the LHC, LUX and Planck
19 pages, 13 Figures
null
10.1007/JHEP08(2014)046
LPT Orsay 14-30, LUPM 14-015
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the parameter space of the semi-constrained NMSSM, compatible with constraints on the Standard Model like Higgs mass and signal rates, constraints from searches for squarks and gluinos, a dark matter relic density compatible with bounds from WMAP/Planck, and direct detection cross sections compatible with co...
[ { "created": "Mon, 26 May 2014 17:17:56 GMT", "version": "v1" } ]
2015-06-19
[ [ "Ellwanger", "Ulrich", "" ], [ "Hugonie", "Cyril", "" ] ]
We study the parameter space of the semi-constrained NMSSM, compatible with constraints on the Standard Model like Higgs mass and signal rates, constraints from searches for squarks and gluinos, a dark matter relic density compatible with bounds from WMAP/Planck, and direct detection cross sections compatible with cons...
1502.02682
Francesco Giacosa
Francesco Giacosa
Non-conventional mesons at PANDA
5 pages. Lecture prepared for FAIRNESS 2014 (3rd International Workshop for young scientists with research interests focused on physics at FAIR), 22-27/9/2014. Contribution to appear in the workshop proceedings
null
10.1088/1742-6596/599/1/012004
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Non-conventional mesons, such as glueballs and tetraquarks, will be in the focus of the PANDA experiment at the FAIR facility. In this lecture we recall the basic properties of QCD and describe some features of unconventional states.\ We focus on the search of the not-yet discovered glueballs and the use of the exten...
[ { "created": "Mon, 9 Feb 2015 21:05:49 GMT", "version": "v1" } ]
2015-06-23
[ [ "Giacosa", "Francesco", "" ] ]
Non-conventional mesons, such as glueballs and tetraquarks, will be in the focus of the PANDA experiment at the FAIR facility. In this lecture we recall the basic properties of QCD and describe some features of unconventional states.\ We focus on the search of the not-yet discovered glueballs and the use of the extende...
hep-ph/9701417
null
Stefano Borgani (1,2) and Antonio Masiero (2,3) ((1) INFN, Perugia - Italy; (2) SISSA, Trieste - Italy; (3) Phys. Dept., Perugia - Italy)
Dark Matter and the Scale of SUSY Breaking
11 pages plus one postscript figure, LaTeX used; Invited talk at the XII International Conference of the Italian Society of General Relativity and Physics of Gravitation, Rome, Sept.23-27, 1996
null
null
null
hep-ph astro-ph
null
We review the prospects for dark matter (DM) in two classes of supersymmetric (SUSY) models which are characterized by the different mechanism of SUSY breaking, namely the more common supergravity models with very large scale of SUSY breaking and the recent schemes where SUSY is broken at a relatively low scale and g...
[ { "created": "Thu, 30 Jan 1997 15:43:36 GMT", "version": "v1" } ]
2007-05-23
[ [ "Borgani", "Stefano", "" ], [ "Masiero", "Antonio", "" ] ]
We review the prospects for dark matter (DM) in two classes of supersymmetric (SUSY) models which are characterized by the different mechanism of SUSY breaking, namely the more common supergravity models with very large scale of SUSY breaking and the recent schemes where SUSY is broken at a relatively low scale and gra...
hep-ph/9709303
Victor Kim
Victor T. Kim (PNPI, St.Petersburg), Grigorii B. Pivovarov (INR, Moscow) & James P. Vary (IITAP, Ames)
A New Qualitative Prediction of the Parton Model for High Energy Hadron Collisions
8 pages, 3 EPS figures; revised version, to appear in Foundations of Physics
Found.Phys. 30 (2000) 519-527
null
IITAP-97-011
hep-ph hep-ex
null
Inclusive single jet production in hadron collisions is considered. It is shown that the QCD parton model predicts a nonmonotonic dependence of the inclusive cross section on the fraction of the energy deposited in the jet registered, if it is normalized on the same cross section measured at another collision energy....
[ { "created": "Wed, 10 Sep 1997 16:46:34 GMT", "version": "v1" }, { "created": "Mon, 25 Oct 1999 19:36:35 GMT", "version": "v2" } ]
2008-02-03
[ [ "Kim", "Victor T.", "", "PNPI, St.Petersburg" ], [ "Pivovarov", "Grigorii B.", "", "INR,\n Moscow" ], [ "Vary", "James P.", "", "IITAP, Ames" ] ]
Inclusive single jet production in hadron collisions is considered. It is shown that the QCD parton model predicts a nonmonotonic dependence of the inclusive cross section on the fraction of the energy deposited in the jet registered, if it is normalized on the same cross section measured at another collision energy. S...
2003.04903
Reuven Balkin
Reuven Balkin, Javi Serra, Konstantin Springmann, Andreas Weiler
The QCD Axion at Finite Density
39 pages + appendices and updated references, 6 figures
null
10.1007/JHEP07(2020)221
TUM-HEP-1255/20
hep-ph astro-ph.HE nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show how the properties of the QCD axion change in systems at finite baryonic density, such as neutron stars. At nuclear saturation densities, where corrections can be reliably computed, we find a mild reduction of the axion mass and up to an order of magnitude enhancement in the model-independent axion coupling t...
[ { "created": "Tue, 10 Mar 2020 18:00:03 GMT", "version": "v1" }, { "created": "Thu, 15 Jul 2021 07:51:17 GMT", "version": "v2" } ]
2021-07-16
[ [ "Balkin", "Reuven", "" ], [ "Serra", "Javi", "" ], [ "Springmann", "Konstantin", "" ], [ "Weiler", "Andreas", "" ] ]
We show how the properties of the QCD axion change in systems at finite baryonic density, such as neutron stars. At nuclear saturation densities, where corrections can be reliably computed, we find a mild reduction of the axion mass and up to an order of magnitude enhancement in the model-independent axion coupling to ...
hep-ph/0305125
Dimitri Bourilkov
Dimitri Bourilkov
Sensitivity to Contact Interactions and Extra Dimensions in Di-lepton and Di-photon Channels at Future Colliders
13 pages, 2 figures, 8 tables; Contribution to LHC / LC Study Group Working Document
null
null
null
hep-ph
null
Virtual effects from a generic description of physics beyond the Standard Model in terms of contact interactions, or from large extra dimensions will modify the observed cross sections for easy to detect final states like lepton or photon pairs, and can be used to probe scales much higher than the center-of-mass ener...
[ { "created": "Mon, 12 May 2003 17:04:14 GMT", "version": "v1" } ]
2007-05-23
[ [ "Bourilkov", "Dimitri", "" ] ]
Virtual effects from a generic description of physics beyond the Standard Model in terms of contact interactions, or from large extra dimensions will modify the observed cross sections for easy to detect final states like lepton or photon pairs, and can be used to probe scales much higher than the center-of-mass energy...
hep-ph/9210232
Lisa Randall
L. Randall
Testing ETC Generation of the Top Quark Mass
LaTeX, 40 Pages, 1 figure (not included), CTP 2111
Phys.Lett.B297:309-317,1992
10.1016/0370-2693(92)91268-E
null
hep-ph
null
We consider constraints on models in which a top quark mass is generated through unenhanced extended technicolor interactions. The deviation in the $\rho$ parameter from unity and $B$--$\overline{B}$ mixing could be large, but given the uncertainties in strong dynamics and variations in the parameters of models, no c...
[ { "created": "Tue, 13 Oct 1992 15:40:27 GMT", "version": "v1" } ]
2009-09-15
[ [ "Randall", "L.", "" ] ]
We consider constraints on models in which a top quark mass is generated through unenhanced extended technicolor interactions. The deviation in the $\rho$ parameter from unity and $B$--$\overline{B}$ mixing could be large, but given the uncertainties in strong dynamics and variations in the parameters of models, no con...
1212.6728
Lei Wu
Chengcheng Han, Ning Liu, Lei Wu, Jin Min Yang, Yang Zhang
Two-Higgs-doublet model with a color-triplet scalar: a joint explanation for top quark forward-backward asymmetry and Higgs decay to diphoton
18pages, 4figures, references added
null
10.1140/epjc/s10052-013-2664-7
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The excess of top quark forward-backward asymmetry ($A^t_{FB}$) reported by the Tevatron and the enhancement of the Higgs decay to diphoton observed by the LHC may point to a same origin of new physics. In this note we examined such anomalies in the two-Higgs-doublet model with a color-triplet scalar. We found that u...
[ { "created": "Sun, 30 Dec 2012 14:50:51 GMT", "version": "v1" }, { "created": "Sun, 6 Jan 2013 14:55:40 GMT", "version": "v2" } ]
2015-06-12
[ [ "Han", "Chengcheng", "" ], [ "Liu", "Ning", "" ], [ "Wu", "Lei", "" ], [ "Yang", "Jin Min", "" ], [ "Zhang", "Yang", "" ] ]
The excess of top quark forward-backward asymmetry ($A^t_{FB}$) reported by the Tevatron and the enhancement of the Higgs decay to diphoton observed by the LHC may point to a same origin of new physics. In this note we examined such anomalies in the two-Higgs-doublet model with a color-triplet scalar. We found that und...
hep-ph/0603243
S. Nandi
S. Nandi, C. M. Rujoiu
A Model for Neutrino and Charged Lepton Masses in Extra Dimensions
11 pages, no figures
Phys.Rev.D76:015003,2007
10.1103/PhysRevD.76.015003
OSU-HEP-06-3
hep-ph
null
We propose a model with one large submm size extra dimension in which the gravity and right-handed (RH) neutrino propagate, but the three Standard Model (SM) families are confined to fat branes of TeV^(-1) size or smaller. The charged leptons and the light neutrinos receive mass from the five dimensional Yukawa coupl...
[ { "created": "Wed, 29 Mar 2006 17:59:42 GMT", "version": "v1" } ]
2008-11-26
[ [ "Nandi", "S.", "" ], [ "Rujoiu", "C. M.", "" ] ]
We propose a model with one large submm size extra dimension in which the gravity and right-handed (RH) neutrino propagate, but the three Standard Model (SM) families are confined to fat branes of TeV^(-1) size or smaller. The charged leptons and the light neutrinos receive mass from the five dimensional Yukawa couplin...
hep-ph/9810375
null
Harry J. Lipkin (Weizmann Institute of Science, Tel Aviv University and Argonne National Laboratory)
Search for New Physics in $D^\pm \to K_S X^{\pm} $ and $D^\pm \to K_S K_S K^{\pm}$
9 pages
null
null
WIS-98/27/Oct-PH, TAUP 2530-98, ANL-HEP-CP-98-122
hep-ph
null
Direct CP violation beyond the standard model can be produced in charged D decays to final states with a $K_S$ by small new physics contributions to the transitions $D^+ \to K^o X^+$, where $X^+$ denotes any positively charged hadronic state or transitions $D^+ \to K^o \bar K^o K^{(*)+}$, where $K^{(*)+}$ denotes any...
[ { "created": "Thu, 15 Oct 1998 17:20:07 GMT", "version": "v1" } ]
2007-05-23
[ [ "Lipkin", "Harry J.", "", "Weizmann Institute of Science, Tel Aviv University\n and Argonne National Laboratory" ] ]
Direct CP violation beyond the standard model can be produced in charged D decays to final states with a $K_S$ by small new physics contributions to the transitions $D^+ \to K^o X^+$, where $X^+$ denotes any positively charged hadronic state or transitions $D^+ \to K^o \bar K^o K^{(*)+}$, where $K^{(*)+}$ denotes any p...
hep-ph/0612369
Aleksander Filip Zarnecki
M.Spira, P.Niezurawski, M.Krawczyk, A.F.Zarnecki
Heavy neutral MSSM Higgs Bosons at the PLC - a comparison of two analyses
To appear in the proceedings of Linear Collider Workshop (LCWS06), Banagalore, India, 9-13 Mar 2006
Pramana69:931-936,2007
10.1007/s12043-007-0207-1
null
hep-ph
null
Measurement of the heavy neutral MSSM Higgs bosons H and A production in the process gamma gamma --> A, H --> b anti-b at the Photon Linear Collider has been considered in two independent analyses for the parameter range corresponding to the so-called "LHC wedge". Significantly different conclusions were obtained; si...
[ { "created": "Fri, 29 Dec 2006 14:16:40 GMT", "version": "v1" } ]
2008-11-26
[ [ "Spira", "M.", "" ], [ "Niezurawski", "P.", "" ], [ "Krawczyk", "M.", "" ], [ "Zarnecki", "A. F.", "" ] ]
Measurement of the heavy neutral MSSM Higgs bosons H and A production in the process gamma gamma --> A, H --> b anti-b at the Photon Linear Collider has been considered in two independent analyses for the parameter range corresponding to the so-called "LHC wedge". Significantly different conclusions were obtained; sign...
1310.6315
Andrii Salii
L\'aszl\'o Jenkovszky, Andrii Salii
Diffraction dissociation at the LHC
Presented at EDS Blois 2013 (arXiv:1309.5705)
null
10.1063/1.4802105
EDSBlois/2013/06
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Predictions for the squared momentum transfer and missing mass dependence of the differential and integrated single- and double low missing-mass diffraction dissociation in the kinematical range of present and future LHC measurements are summarized.
[ { "created": "Tue, 22 Oct 2013 13:07:10 GMT", "version": "v1" } ]
2015-06-17
[ [ "Jenkovszky", "László", "" ], [ "Salii", "Andrii", "" ] ]
Predictions for the squared momentum transfer and missing mass dependence of the differential and integrated single- and double low missing-mass diffraction dissociation in the kinematical range of present and future LHC measurements are summarized.
hep-ph/9406234
Stephen Hsu
Stephen D.H. Hsu
Quantum Scattering and Classical Solutions
17 pages, uses latex and pictex
null
null
null
hep-ph hep-th
null
I discuss a formalism for computing quantum scattering amplitudes using a semiclassical expansion of a functional integral representation for the S-matrix. The classical background for the expansion is determined by solving the equations of motion subject to nontrivial boundary conditions determined by the initial an...
[ { "created": "Mon, 6 Jun 1994 17:33:45 GMT", "version": "v1" } ]
2007-05-23
[ [ "Hsu", "Stephen D. H.", "" ] ]
I discuss a formalism for computing quantum scattering amplitudes using a semiclassical expansion of a functional integral representation for the S-matrix. The classical background for the expansion is determined by solving the equations of motion subject to nontrivial boundary conditions determined by the initial and ...
hep-ph/9708438
Boris Kastening
J.J. van der Bij and Boris Kastening (Universitaet Freiburg)
Corrections to oblique parameters induced by anomalous vector boson couplings
32 pages, LaTeX; cross reference corrected, minor beautifications, version to be published in Phys.Rev.D
Phys.Rev. D57 (1998) 2903-2926
10.1103/PhysRevD.57.2903
Freiburg-THEP 97/17
hep-ph
null
We study quadratically divergent radiative corrections to the oblique parameters at LEP1 induced by non-standard vector boson self-couplings. We work in the Stueckelberg formalism and regulate the divergences through a gauge-invariant higher derivative scheme. Using consistency arguments together with the data we fin...
[ { "created": "Fri, 22 Aug 1997 15:16:32 GMT", "version": "v1" }, { "created": "Mon, 15 Dec 1997 16:00:48 GMT", "version": "v2" }, { "created": "Tue, 13 Jan 1998 09:27:54 GMT", "version": "v3" } ]
2009-10-30
[ [ "van der Bij", "J. J.", "", "Universitaet Freiburg" ], [ "Kastening", "Boris", "", "Universitaet Freiburg" ] ]
We study quadratically divergent radiative corrections to the oblique parameters at LEP1 induced by non-standard vector boson self-couplings. We work in the Stueckelberg formalism and regulate the divergences through a gauge-invariant higher derivative scheme. Using consistency arguments together with the data we find ...
0907.2754
Luis. A. Sanchez
Jorge L. Nisperuza, Luis A. Sanchez
Effects of quark family nonuniversality in SU(3)_c X SU(4)_L X U(1)_x models
27 pages, 10 tables, 2 figures. Equation (19) and typos corrected. Matches version to appear in Phys. Rev. D
Phys.Rev.D80:035003,2009
10.1103/PhysRevD.80.035003
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Flavour changing neutral currents arise in the $SU(3)_c\otimes SU(4)_L\otimes U(1)_X$ extension of the standard model because anomaly cancellation among the fermion families requires one generation of quarks to transform differently from the other two under the gauge group. In the weak basis the distinction between q...
[ { "created": "Thu, 16 Jul 2009 05:40:49 GMT", "version": "v1" }, { "created": "Tue, 25 Aug 2009 21:20:03 GMT", "version": "v2" } ]
2009-10-06
[ [ "Nisperuza", "Jorge L.", "" ], [ "Sanchez", "Luis A.", "" ] ]
Flavour changing neutral currents arise in the $SU(3)_c\otimes SU(4)_L\otimes U(1)_X$ extension of the standard model because anomaly cancellation among the fermion families requires one generation of quarks to transform differently from the other two under the gauge group. In the weak basis the distinction between qua...
hep-ph/0001152
Pushpalatha Bhat
Pushpalatha C. Bhat, Russell Gilmartin, Harrison B. Prosper
Strategy for discovering a low-mass Higgs boson at the Fermilab Tevatron
26 pages, 8 figures, 7 tables, to appear in Physical Review D, Minor fixes and revisions
Phys.Rev. D62 (2000) 074022
10.1103/PhysRevD.62.074022
Fermilab-Pub-00/006, FSU-HEP-2000-0101
hep-ph
null
We have studied the potential of the CDF and DZero experiments to discover a low-mass Standard Model Higgs boson, during Run II, via the processes $p\bar{p}$ -> WH -> $\ell\nu b\bar{b}$, $p\bar{p}$ -> ZH -> $\ell^{+}\ell^{-}b\bar{b}$ and $p\bar{p}$ -> ZH ->$\nu \bar{\nu} b\bar{b}$. We show that a multivariate analysi...
[ { "created": "Mon, 17 Jan 2000 06:00:07 GMT", "version": "v1" }, { "created": "Fri, 4 Feb 2000 06:40:03 GMT", "version": "v2" }, { "created": "Sun, 20 Aug 2000 18:56:03 GMT", "version": "v3" } ]
2009-10-31
[ [ "Bhat", "Pushpalatha C.", "" ], [ "Gilmartin", "Russell", "" ], [ "Prosper", "Harrison B.", "" ] ]
We have studied the potential of the CDF and DZero experiments to discover a low-mass Standard Model Higgs boson, during Run II, via the processes $p\bar{p}$ -> WH -> $\ell\nu b\bar{b}$, $p\bar{p}$ -> ZH -> $\ell^{+}\ell^{-}b\bar{b}$ and $p\bar{p}$ -> ZH ->$\nu \bar{\nu} b\bar{b}$. We show that a multivariate analysis ...