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1408.1315
HongWei Ke
Hong-Wei Ke, Tan Liu and Xue-Qian Li
Determination of the mixing between active neutrinos and sterile neutrino through the quark-lepton complementarity and self-complementarity
10 pages, Accepted by PRD
Phys. Rev. D 90, 053009 (2014)
10.1103/PhysRevD.90.053009
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is suggested that there is an underlying symmetry which relates the quark and lepton sectors. Namely, among the mixing matrix elements of CKM for quarks and PMNS for leptons there exist complementarity relations at a high energy scale (such as the see-saw or even the GUT scales). Assuming that the relations would ...
[ { "created": "Wed, 6 Aug 2014 15:13:13 GMT", "version": "v1" }, { "created": "Mon, 22 Sep 2014 06:39:11 GMT", "version": "v2" } ]
2014-10-01
[ [ "Ke", "Hong-Wei", "" ], [ "Liu", "Tan", "" ], [ "Li", "Xue-Qian", "" ] ]
It is suggested that there is an underlying symmetry which relates the quark and lepton sectors. Namely, among the mixing matrix elements of CKM for quarks and PMNS for leptons there exist complementarity relations at a high energy scale (such as the see-saw or even the GUT scales). Assuming that the relations would re...
1911.09255
Martin Mosny
Martin Mosny
A study of Higgs $\boldsymbol{CP}$ properties using the Higgs Characterization Model and top associated production
21 pages, 8 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This study utilises the Higgs Characterization model to investigate the $CP$ properties of the Higgs coupling to the top quark using the $tH$ and $t\bar{t}H$ generation processes. This is done via simulations of proton-proton collisions with ATLAS detector conditions, which are calculated for seven different $CP$ eig...
[ { "created": "Thu, 21 Nov 2019 02:50:16 GMT", "version": "v1" } ]
2019-11-22
[ [ "Mosny", "Martin", "" ] ]
This study utilises the Higgs Characterization model to investigate the $CP$ properties of the Higgs coupling to the top quark using the $tH$ and $t\bar{t}H$ generation processes. This is done via simulations of proton-proton collisions with ATLAS detector conditions, which are calculated for seven different $CP$ eigen...
hep-ph/0605294
Andre Peshier
A. Peshier
The QCD collisional energy loss revised
2 figures
Phys.Rev.Lett. 97 (2006) 212301
10.1103/PhysRevLett.97.212301
null
hep-ph nucl-ex nucl-th
null
It is shown that to leading order the QCD collisional energy loss reads $dE/dx \sim \alpha(m_D^2)T^2$. Compared to prevalent expressions, $dE^B/dx \sim \alpha^2 T^2 \ln(ET/m_D^2)$, which could be considered adaptions of the (QED) Bethe-Bloch formula, the rectified result takes into account the running coupling, as di...
[ { "created": "Mon, 29 May 2006 19:58:09 GMT", "version": "v1" } ]
2009-11-11
[ [ "Peshier", "A.", "" ] ]
It is shown that to leading order the QCD collisional energy loss reads $dE/dx \sim \alpha(m_D^2)T^2$. Compared to prevalent expressions, $dE^B/dx \sim \alpha^2 T^2 \ln(ET/m_D^2)$, which could be considered adaptions of the (QED) Bethe-Bloch formula, the rectified result takes into account the running coupling, as dict...
2104.03280
Matteo Cadeddu Dr.
M. Cadeddu, N. Cargioli, F. Dordei, C. Giunti and E. Picciau
Muon and electron g-2 and proton and cesium weak charges implications on dark $\mathbf{Z_d}$ models
6 pages, 5 figures. Matches version published in Physical Review D Letter
Phys. Rev. D 104, 011701 (2021)
10.1103/PhysRevD.104.L011701
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Theories beyond the standard model involving a sub-GeV-scale vector $Z_d$ mediator have been largely studied as a possible explanation of the experimental values of the muon and electron anomalous magnetic moments. Motivated by the recent determination of the anomalous muon magnetic moment performed at Fermilab, we d...
[ { "created": "Wed, 7 Apr 2021 17:36:01 GMT", "version": "v1" }, { "created": "Wed, 21 Apr 2021 18:08:36 GMT", "version": "v2" }, { "created": "Mon, 19 Jul 2021 09:45:48 GMT", "version": "v3" } ]
2021-07-21
[ [ "Cadeddu", "M.", "" ], [ "Cargioli", "N.", "" ], [ "Dordei", "F.", "" ], [ "Giunti", "C.", "" ], [ "Picciau", "E.", "" ] ]
Theories beyond the standard model involving a sub-GeV-scale vector $Z_d$ mediator have been largely studied as a possible explanation of the experimental values of the muon and electron anomalous magnetic moments. Motivated by the recent determination of the anomalous muon magnetic moment performed at Fermilab, we der...
1112.0277
Oleg Moroz
Oleg N. Moroz
Towards precise calculation of transport coefficients in the hadron gas. The shear and the bulk viscosities
40 pages, 8 figures; mass spectrum dependence investigation is extended a little
null
null
null
hep-ph physics.flu-dyn
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The shear and the bulk viscosities of the hadron gas at low temperatures are studied in the model with constant elastic cross sections being relativistic generalization of the hard spheres model. One effective radius ${r=0.4 fm}$ is chosen for all elastic collisions. Only elastic collisions are considered which are s...
[ { "created": "Thu, 1 Dec 2011 19:23:53 GMT", "version": "v1" }, { "created": "Wed, 21 Nov 2012 16:25:38 GMT", "version": "v2" }, { "created": "Sun, 23 Dec 2012 14:19:20 GMT", "version": "v3" }, { "created": "Tue, 29 Jan 2013 07:31:58 GMT", "version": "v4" }, { "cr...
2015-03-19
[ [ "Moroz", "Oleg N.", "" ] ]
The shear and the bulk viscosities of the hadron gas at low temperatures are studied in the model with constant elastic cross sections being relativistic generalization of the hard spheres model. One effective radius ${r=0.4 fm}$ is chosen for all elastic collisions. Only elastic collisions are considered which are sup...
1802.07174
Matthias Heller
Matthias Heller, Oleksandr Tomalak, Marc Vanderhaeghen
Soft-photon corrections to the Bethe-Heitler process in the $\gamma p\rightarrow l^+l^-p$ reaction
23 pages, 10 figures, fixed typo in Eqs 64 and 66, minor corrections in text and figures, Version published in Phys. Rev. D
Phys. Rev. D 97, 076012 (2018)
10.1103/PhysRevD.97.076012
null
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We report on the calculation of first-order QED corrections for the $\gamma p\rightarrow l^+l^-p^{\prime}$ process. An upcoming experiment at MAMI (Mainz) aims to compare the cross sections of muon- and electron-pair production in this reaction to test lepton universality. Precise knowledge of the electromagnetic rad...
[ { "created": "Tue, 20 Feb 2018 16:15:05 GMT", "version": "v1" }, { "created": "Fri, 23 Feb 2018 15:46:05 GMT", "version": "v2" }, { "created": "Thu, 19 Apr 2018 10:04:05 GMT", "version": "v3" } ]
2018-05-09
[ [ "Heller", "Matthias", "" ], [ "Tomalak", "Oleksandr", "" ], [ "Vanderhaeghen", "Marc", "" ] ]
We report on the calculation of first-order QED corrections for the $\gamma p\rightarrow l^+l^-p^{\prime}$ process. An upcoming experiment at MAMI (Mainz) aims to compare the cross sections of muon- and electron-pair production in this reaction to test lepton universality. Precise knowledge of the electromagnetic radia...
hep-ph/0410293
C. Hanhart
C. Hanhart, J. Haidenbauer, K. Nakayama, U.-G. Mei{\ss}ner
Remarks on the parity determination of narrow resonances
Invited talk presented at PENTAQUARK04 July 20-23, 2004 at SPring-8, Japan
null
10.1142/9789812701855_0020
FZJ-IKP(TH)-2004-17, HISKP-TH-04-21
hep-ph
null
Recently several proposals were put forward to determine the parity of narrow baryonic resonances, in particular the $\Theta^+$. In these proceedings we will briefly comment on the general problems in this task and then discuss in detail the potential of reactions of the type $\vec N\vec N\to\Theta^+Y$, where $Y$ den...
[ { "created": "Thu, 21 Oct 2004 13:42:39 GMT", "version": "v1" } ]
2017-08-23
[ [ "Hanhart", "C.", "" ], [ "Haidenbauer", "J.", "" ], [ "Nakayama", "K.", "" ], [ "Meißner", "U. -G.", "" ] ]
Recently several proposals were put forward to determine the parity of narrow baryonic resonances, in particular the $\Theta^+$. In these proceedings we will briefly comment on the general problems in this task and then discuss in detail the potential of reactions of the type $\vec N\vec N\to\Theta^+Y$, where $Y$ denot...
0808.2318
Jonathan Feng
Jonathan L. Feng, Huitzu Tu, Hai-Bo Yu
Thermal Relics in Hidden Sectors
20 pages, 8 figures; v2: references added; v3: published version
JCAP 0810:043,2008
10.1088/1475-7516/2008/10/043
UCI-TR-2008-26
hep-ph astro-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Dark matter may be hidden, with no standard model gauge interactions. At the same time, in WIMPless models with hidden matter masses proportional to hidden gauge couplings squared, the hidden dark matter's thermal relic density may naturally be in the right range, preserving the key quantitative virtue of WIMPs. We c...
[ { "created": "Mon, 18 Aug 2008 19:19:45 GMT", "version": "v1" }, { "created": "Thu, 21 Aug 2008 21:17:13 GMT", "version": "v2" }, { "created": "Mon, 3 Nov 2008 23:22:49 GMT", "version": "v3" } ]
2009-11-18
[ [ "Feng", "Jonathan L.", "" ], [ "Tu", "Huitzu", "" ], [ "Yu", "Hai-Bo", "" ] ]
Dark matter may be hidden, with no standard model gauge interactions. At the same time, in WIMPless models with hidden matter masses proportional to hidden gauge couplings squared, the hidden dark matter's thermal relic density may naturally be in the right range, preserving the key quantitative virtue of WIMPs. We con...
hep-ph/0010146
Andreas Vogt
A. Vogt (Leiden University)
Next-to-next-to-leading logarithmic threshold resummation for deep-inelastic scattering and the Drell-Yan process
9 pages, LaTeX, 2 eps-figures
Phys.Lett. B497 (2001) 228-234
10.1016/S0370-2693(00)01344-7
INLO-PUB 10/00
hep-ph
null
The soft-gluon resummation exponents G^N in moment space are investigated for the quark coefficient functions in deep-inelastic structure functions and the quark-antiquark contribution to the Drell-Yan cross section dsigma/dM. Employing results from two- and three-loop calculations we obtain the next-to-next-to-leadi...
[ { "created": "Sat, 14 Oct 2000 13:32:53 GMT", "version": "v1" } ]
2009-10-31
[ [ "Vogt", "A.", "", "Leiden University" ] ]
The soft-gluon resummation exponents G^N in moment space are investigated for the quark coefficient functions in deep-inelastic structure functions and the quark-antiquark contribution to the Drell-Yan cross section dsigma/dM. Employing results from two- and three-loop calculations we obtain the next-to-next-to-leading...
hep-ph/0607303
Fabrizio Nesti
Zurab Berezhiani, Fabrizio Nesti, Luigi Pilo
Soft SUSY breaking contributions to proton decay
16 pages, 2 figures, LaTeX, JHEP3 class, axodraw
JHEP 0610 (2006) 030
10.1088/1126-6708/2006/10/030
null
hep-ph
null
We show that in supersymmetric grand unified theories new effective D=4 and D=5 operators for proton decay are induced by soft SUSY-breaking terms, when heavy GUT gauge bosons are integrated out, in addition to the standard D=6 ones. As a result, the proton lifetime in gauge mediated channels can be enhanced or even ...
[ { "created": "Thu, 27 Jul 2006 11:41:52 GMT", "version": "v1" } ]
2009-11-11
[ [ "Berezhiani", "Zurab", "" ], [ "Nesti", "Fabrizio", "" ], [ "Pilo", "Luigi", "" ] ]
We show that in supersymmetric grand unified theories new effective D=4 and D=5 operators for proton decay are induced by soft SUSY-breaking terms, when heavy GUT gauge bosons are integrated out, in addition to the standard D=6 ones. As a result, the proton lifetime in gauge mediated channels can be enhanced or even su...
hep-ph/9609508
Gregory D. Mahlon
Gregory Mahlon (U. Michigan)
How to Search for a Light Stop at the Tevatron
3 pages, 1 figure, latex, uses sprocl.sty and psfig.tex. Talk given at DPF96, Minneapolis, MN, Aug. 11-15, 1996
null
null
UM-TH-96-15
hep-ph
null
We describe a method for searching for a light stop squark [M(stop)+M(LSP)<M(t)] at the Fermilab Tevatron. Traditional searches rely upon stringent background-reducing cuts which, unfortunately, leave very few signal events given the present data set. To avoid this difficulty, we suggest using a milder set of cuts, c...
[ { "created": "Fri, 27 Sep 1996 20:00:23 GMT", "version": "v1" } ]
2007-05-23
[ [ "Mahlon", "Gregory", "", "U. Michigan" ] ]
We describe a method for searching for a light stop squark [M(stop)+M(LSP)<M(t)] at the Fermilab Tevatron. Traditional searches rely upon stringent background-reducing cuts which, unfortunately, leave very few signal events given the present data set. To avoid this difficulty, we suggest using a milder set of cuts, com...
hep-ph/0207055
Zack Sullivan
B. W. Harris, E. Laenen, L. Phaf, Z. Sullivan, and S. Weinzierl
The fully differential single-top-quark cross section in next-to-leading order QCD
37 pages, latex, 2 ps figures
Phys.Rev.D66:054024,2002
10.1103/PhysRevD.66.054024
null
hep-ph hep-ex
null
We present a new next-to-leading order calculation for fully differential single-top-quark final states. The calculation is performed using phase space slicing and dipole subtraction methods. The results of the methods are found to be in agreement. The dipole subtraction method calculation retains the full spin depen...
[ { "created": "Wed, 3 Jul 2002 20:00:23 GMT", "version": "v1" } ]
2008-11-26
[ [ "Harris", "B. W.", "" ], [ "Laenen", "E.", "" ], [ "Phaf", "L.", "" ], [ "Sullivan", "Z.", "" ], [ "Weinzierl", "S.", "" ] ]
We present a new next-to-leading order calculation for fully differential single-top-quark final states. The calculation is performed using phase space slicing and dipole subtraction methods. The results of the methods are found to be in agreement. The dipole subtraction method calculation retains the full spin depende...
1011.4587
Maxim Khlopov
Maxim Yu. Khlopov, Andrey G. Mayorov, Evgeny Yu. Soldatov
Puzzles of Dark Matter - More Light on Dark Atoms?
Contribution to Proceedings of XIII Bled Workshop "What Comes beyond the Standard Model?"
null
10.1088/1742-6596/309/1/012013
null
hep-ph astro-ph.CO hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Positive results of dark matter searches in experiments DAMA/NaI and DAMA/LIBRA confronted with results of other groups can imply nontrivial particle physics solutions for cosmological dark matter. Stable particles with charge -2, bound with primordial helium in O-helium "atoms" (OHe), represent a specific nuclear-in...
[ { "created": "Sat, 20 Nov 2010 15:20:39 GMT", "version": "v1" } ]
2015-05-20
[ [ "Khlopov", "Maxim Yu.", "" ], [ "Mayorov", "Andrey G.", "" ], [ "Soldatov", "Evgeny Yu.", "" ] ]
Positive results of dark matter searches in experiments DAMA/NaI and DAMA/LIBRA confronted with results of other groups can imply nontrivial particle physics solutions for cosmological dark matter. Stable particles with charge -2, bound with primordial helium in O-helium "atoms" (OHe), represent a specific nuclear-inte...
hep-ph/9903458
Smaragda Lola
L. Alvarez-Gaume, C. Kounnas, S. Lola and P. Pavlopoulos
Direct T-violation measurements and T-odd effects in decay experiments
11 pages, no figures. Presented at the 34th Rencontres de Moriond on Electroweak Interactions and Unified Theories, Les Arcs, 13-20 March, 1999
null
null
CERN-TH/99-80, LPTENS-99-12
hep-ph
null
Motivated by the recent experimental announcements for direct measurements of time-reversal non-invariance in the neutral kaon system, we make a comparative discussion of the CPLEAR and KTeV measurements. The most suitable way to consistently incorporate the mixing, the time evolution and the decays of kaons, is to d...
[ { "created": "Tue, 23 Mar 1999 16:28:42 GMT", "version": "v1" } ]
2007-05-23
[ [ "Alvarez-Gaume", "L.", "" ], [ "Kounnas", "C.", "" ], [ "Lola", "S.", "" ], [ "Pavlopoulos", "P.", "" ] ]
Motivated by the recent experimental announcements for direct measurements of time-reversal non-invariance in the neutral kaon system, we make a comparative discussion of the CPLEAR and KTeV measurements. The most suitable way to consistently incorporate the mixing, the time evolution and the decays of kaons, is to des...
hep-ph/0007108
Raju Venugopalan
Alex Krasnitz and Raju Venugopalan
The initial gluon multiplicity in heavy ion collisions
LaTex 10 pgs., 3 figures
Phys.Rev.Lett. 86 (2001) 1717-1720
10.1103/PhysRevLett.86.1717
null
hep-ph nucl-ex nucl-th
null
The initial gluon multiplicity per unit area per unit rapidity, dN/L^2/d\eta, in high energy nuclear collisions, is equal to f_N (g^2\mu L) (g^2\mu)^2/g^2, with \mu^2 proportional to the gluon density per unit area of the colliding nuclei. For an SU(2) gauge theory, we compute f_N (g^2\mu L)=0.14\pm 0.01 for a wide r...
[ { "created": "Tue, 11 Jul 2000 21:03:23 GMT", "version": "v1" } ]
2009-10-31
[ [ "Krasnitz", "Alex", "" ], [ "Venugopalan", "Raju", "" ] ]
The initial gluon multiplicity per unit area per unit rapidity, dN/L^2/d\eta, in high energy nuclear collisions, is equal to f_N (g^2\mu L) (g^2\mu)^2/g^2, with \mu^2 proportional to the gluon density per unit area of the colliding nuclei. For an SU(2) gauge theory, we compute f_N (g^2\mu L)=0.14\pm 0.01 for a wide ran...
0806.1375
Bernard Pire
M. El Beiyad, B. Pire, L. Szymanowski, S. Wallon
Two Photon Distribution Amplitudes
to be published in the proceedings of the workshop HLPW08, Spa, March 6-8, 2008, AIP conference proceedings series
AIPConf.Proc.1038:305-310,2008
10.1063/1.2987183
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The factorization of the amplitude of the process gamma* gamma -> gamma gamma in the low energy and high photon virtuality region is demonstrated at the Born order and in the leading logarithmic approximation. The leading order two photon (generalized) distribution amplitudes exhibit a characteristic ln Q2 behaviour ...
[ { "created": "Mon, 9 Jun 2008 06:48:14 GMT", "version": "v1" } ]
2008-11-26
[ [ "Beiyad", "M. El", "" ], [ "Pire", "B.", "" ], [ "Szymanowski", "L.", "" ], [ "Wallon", "S.", "" ] ]
The factorization of the amplitude of the process gamma* gamma -> gamma gamma in the low energy and high photon virtuality region is demonstrated at the Born order and in the leading logarithmic approximation. The leading order two photon (generalized) distribution amplitudes exhibit a characteristic ln Q2 behaviour an...
2102.01610
Rong Wang
Rong Wang, Wei Kou, Ya-Ping Xie, Xurong Chen
Extraction of the proton mass radius from the vector meson photoproductions near thresholds
5 pages, 2 figures, minor modifications
Phys. Rev. D 103, 091501 (2021)
10.1103/PhysRevD.103.L091501
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present an analysis of the proton mass radius by studying the $t$-dependence of the differential cross sections of the vector meson photoproductions near the thresholds. At low energy, the photoproduction of a quarkonium off the proton is connected to the scalar gravitational form factor of the proton, which is se...
[ { "created": "Tue, 2 Feb 2021 17:13:22 GMT", "version": "v1" }, { "created": "Thu, 4 Feb 2021 17:38:44 GMT", "version": "v2" }, { "created": "Wed, 10 Mar 2021 15:29:21 GMT", "version": "v3" }, { "created": "Thu, 13 May 2021 01:49:46 GMT", "version": "v4" } ]
2021-05-19
[ [ "Wang", "Rong", "" ], [ "Kou", "Wei", "" ], [ "Xie", "Ya-Ping", "" ], [ "Chen", "Xurong", "" ] ]
We present an analysis of the proton mass radius by studying the $t$-dependence of the differential cross sections of the vector meson photoproductions near the thresholds. At low energy, the photoproduction of a quarkonium off the proton is connected to the scalar gravitational form factor of the proton, which is sens...
hep-ph/9804461
Xiaotong Song
Xiaotong Song
Baryon Magnetic Moments and Quark Orbital Motion in the Chiral Quark Model
15 pages, 7 tables; one more reference added
null
null
INPP-UVA-98-03, January, 1997 (Revised April 29, 1998)
hep-ph nucl-th
null
Using the unified scheme for describing both quark spin and orbital angular momenta in the chiral quark model developed in the previous work, the magnetic moments of octet and decuplet baryons are calculated. The numerical result shows that the overall agreement with data is improved by including the orbital contribu...
[ { "created": "Thu, 30 Apr 1998 17:18:52 GMT", "version": "v1" }, { "created": "Mon, 4 May 1998 21:47:57 GMT", "version": "v2" }, { "created": "Tue, 5 May 1998 23:58:48 GMT", "version": "v3" }, { "created": "Tue, 12 May 1998 17:31:35 GMT", "version": "v4" }, { "cre...
2007-05-23
[ [ "Song", "Xiaotong", "" ] ]
Using the unified scheme for describing both quark spin and orbital angular momenta in the chiral quark model developed in the previous work, the magnetic moments of octet and decuplet baryons are calculated. The numerical result shows that the overall agreement with data is improved by including the orbital contributi...
2402.14659
Mauro Chiesa
Mauro Chiesa, Clara Lavinia Del Pio, Fulvio Piccinini
On electroweak corrections to neutral current Drell-Yan with the POWHEG BOX
Minimal changes. References added. Published in EPJC
Eur. Phys. J. C 84 (2024) no.5, 539
10.1140/epjc/s10052-024-12908-1
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivated by the requirement of a refined and flexible treatment of electroweak corrections to the neutral current Drell-Yan process, we report on recent developments on various input parameter/renormalization schemes for the calculation of fully differential cross sections, including both on-shell and MSbar schemes....
[ { "created": "Thu, 22 Feb 2024 16:06:33 GMT", "version": "v1" }, { "created": "Wed, 5 Jun 2024 20:58:32 GMT", "version": "v2" } ]
2024-06-07
[ [ "Chiesa", "Mauro", "" ], [ "Del Pio", "Clara Lavinia", "" ], [ "Piccinini", "Fulvio", "" ] ]
Motivated by the requirement of a refined and flexible treatment of electroweak corrections to the neutral current Drell-Yan process, we report on recent developments on various input parameter/renormalization schemes for the calculation of fully differential cross sections, including both on-shell and MSbar schemes. T...
hep-ph/0111354
Minos Axenides
Minos Axenides
Semitopological Q-Rings
4 pages, Contributed to the 4th Workshop "What Comes Beyond The Standard Model", Bled, Slovenia, July 17-27 2001 in honor of Holger Beck Nielsen's 60th Birthday
null
null
null
hep-ph
null
Semitopological Vortices (Q-Rings) are identified to be classical soliton configurations whose stability is attributed to both topological and nontopological charges. We discuss some recent work on the simplest possible realization of such a configuration in a scalar field theory with an unbroken U(1) global symmetry...
[ { "created": "Tue, 27 Nov 2001 17:48:42 GMT", "version": "v1" } ]
2007-05-23
[ [ "Axenides", "Minos", "" ] ]
Semitopological Vortices (Q-Rings) are identified to be classical soliton configurations whose stability is attributed to both topological and nontopological charges. We discuss some recent work on the simplest possible realization of such a configuration in a scalar field theory with an unbroken U(1) global symmetry. ...
hep-ph/9707349
Mike Seymour
Michael H. Seymour (RAL)
Jet Phenomenology
Replaced version adds several references and corrects several minor inconsistencies. No results are affected. 17 pages, 13 figures. Contributed to Proceedings of Les Rencontres de la Valee d'Aoste: Results and Perspectives in Particle Physics, La Thuile, Italy, March 2-8, 1997. This paper can also be obtained f...
null
null
null
hep-ph
null
We discuss the phenomenology of jet physics at hadron colliders, concentrating on the internal structure of jets, which is studied using the jet shape distribution or subjet distributions.
[ { "created": "Mon, 14 Jul 1997 19:11:34 GMT", "version": "v1" }, { "created": "Thu, 17 Jul 1997 14:02:54 GMT", "version": "v2" }, { "created": "Sun, 3 Aug 1997 09:57:46 GMT", "version": "v3" } ]
2008-02-03
[ [ "Seymour", "Michael H.", "", "RAL" ] ]
We discuss the phenomenology of jet physics at hadron colliders, concentrating on the internal structure of jets, which is studied using the jet shape distribution or subjet distributions.
2212.04007
Emerson Luna
G. B. Bopsin, E. G. S. Luna, A. A. Natale, M. Pel\'aez
Nonperturbative gluon exchange in $pp$ elastic scattering at TeV energies
9 pages, 6 figures, 2 tables, text improved, references added. Version to be published in Phys. Rev. D
null
10.1103/PhysRevD.107.114011
null
hep-ph hep-th
http://creativecommons.org/licenses/by/4.0/
We investigate the two-gluon-exchange model of the Pomeron using nonperturbative gluon propagators characterized by a dynamical mass scale. We present the results for an analysis of the available $pp$ differential cross section data at TeV energies which accounts for dynamical gluon masses obtained from a non-linear ...
[ { "created": "Wed, 7 Dec 2022 23:50:57 GMT", "version": "v1" }, { "created": "Tue, 13 Jun 2023 16:53:36 GMT", "version": "v2" } ]
2023-06-21
[ [ "Bopsin", "G. B.", "" ], [ "Luna", "E. G. S.", "" ], [ "Natale", "A. A.", "" ], [ "Peláez", "M.", "" ] ]
We investigate the two-gluon-exchange model of the Pomeron using nonperturbative gluon propagators characterized by a dynamical mass scale. We present the results for an analysis of the available $pp$ differential cross section data at TeV energies which accounts for dynamical gluon masses obtained from a non-linear ve...
hep-ph/9606447
Biswa
M. Bastero-Gil (SISSA), B. Brahmachari (ICTP) and R. N. Mohapatra (U. Maryland)
Magnitude of R-parity violation in String Inspired GUTs
New references included. 16 pages, two figures
null
null
null
hep-ph
null
The nature of R-parity violating interactions in two classes of string inspired supersymmetric grand unified theories (SISUSY GUT), based on the gauge groups $SO(10)$ (and its subgroup $SU(2)_L\times SU(2)_R\times SU(4)_c\equiv G_{224}$) as well as $[SU(3)]^3$, are discussed and their strengths are related to the rat...
[ { "created": "Wed, 26 Jun 1996 19:19:55 GMT", "version": "v1" }, { "created": "Wed, 3 Jul 1996 20:10:44 GMT", "version": "v2" } ]
2008-02-03
[ [ "Bastero-Gil", "M.", "", "SISSA" ], [ "Brahmachari", "B.", "", "ICTP" ], [ "Mohapatra", "R. N.", "", "U.\n Maryland" ] ]
The nature of R-parity violating interactions in two classes of string inspired supersymmetric grand unified theories (SISUSY GUT), based on the gauge groups $SO(10)$ (and its subgroup $SU(2)_L\times SU(2)_R\times SU(4)_c\equiv G_{224}$) as well as $[SU(3)]^3$, are discussed and their strengths are related to the ratio...
hep-ph/0211228
Steve King
S. F. King
Leptogenesis-MNS Link in Unified Models with Natural Neutrino Mass Hierarchy
Version to appear in PRD
Phys.Rev. D67 (2003) 113010
10.1103/PhysRevD.67.113010
null
hep-ph
null
We discuss the relation between leptogenesis and the MNS phases in the class of see-saw models called light sequential dominance in which the right-handed neutrinos dominate sequentially, with the dominant right-handed neutrino being the lightest one. The heaviest right-handed neutrino then decouples, leaving effecti...
[ { "created": "Thu, 14 Nov 2002 19:28:07 GMT", "version": "v1" }, { "created": "Mon, 18 Nov 2002 20:10:01 GMT", "version": "v2" }, { "created": "Thu, 21 Nov 2002 20:42:49 GMT", "version": "v3" }, { "created": "Thu, 21 Nov 2002 21:01:26 GMT", "version": "v4" }, { "c...
2009-11-07
[ [ "King", "S. F.", "" ] ]
We discuss the relation between leptogenesis and the MNS phases in the class of see-saw models called light sequential dominance in which the right-handed neutrinos dominate sequentially, with the dominant right-handed neutrino being the lightest one. The heaviest right-handed neutrino then decouples, leaving effective...
hep-ph/0002089
Frank Krueger
F. Kr\"uger, J. C. Rom\~ao
Flavour-Conserving CP Phases in Supersymmetry and Implications for Exclusive B Decays
34 pages, REVTeX, 6 figures, final version to appear in Phys. Rev. D, with some minor additions
Phys.Rev.D62:034020,2000
10.1103/PhysRevD.62.034020
FISIST/20-99/CFIF
hep-ph
null
We study rare exclusive B decays based on the quark-level transition b->s(d)l^+l^-, where l=e or mu, in the context of supersymmetric theories with minimal flavour violation. We present analytic expressions for various mixing matrices in the presence of new CP-violating phases, and examine their impact on observables...
[ { "created": "Tue, 8 Feb 2000 17:37:20 GMT", "version": "v1" }, { "created": "Mon, 5 Jun 2000 12:28:24 GMT", "version": "v2" } ]
2014-11-17
[ [ "Krüger", "F.", "" ], [ "Romão", "J. C.", "" ] ]
We study rare exclusive B decays based on the quark-level transition b->s(d)l^+l^-, where l=e or mu, in the context of supersymmetric theories with minimal flavour violation. We present analytic expressions for various mixing matrices in the presence of new CP-violating phases, and examine their impact on observables i...
1104.4962
Bhubanjyoti Bhattacharya
Bhubanjyoti Bhattacharya and Jonathan L. Rosner
Relative Phases in $D^0\to K^0 K^-\pi^+$ AND $D^0\to\ok K^+\pi^-$ Dalitz Plots
7 pages, 1 figure; Submitted to Phys. Rev. D
null
null
EFI 11-10
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The processes $D^0\to K^0 K^-\pi^+$ and $D^0\to\ok K^+\pi^-$ involve intermediate vector resonances whose amplitudes and phases are related to each other via flavor SU(3) symmetry. A closer look at Dalitz plots for these two processes is expected to shed light on our understanding of the usefulness of flavor SU(3) sy...
[ { "created": "Tue, 26 Apr 2011 16:36:21 GMT", "version": "v1" }, { "created": "Wed, 4 May 2011 17:09:52 GMT", "version": "v2" }, { "created": "Fri, 10 Jun 2011 06:25:10 GMT", "version": "v3" }, { "created": "Mon, 18 Jul 2011 22:13:03 GMT", "version": "v4" } ]
2011-07-20
[ [ "Bhattacharya", "Bhubanjyoti", "" ], [ "Rosner", "Jonathan L.", "" ] ]
The processes $D^0\to K^0 K^-\pi^+$ and $D^0\to\ok K^+\pi^-$ involve intermediate vector resonances whose amplitudes and phases are related to each other via flavor SU(3) symmetry. A closer look at Dalitz plots for these two processes is expected to shed light on our understanding of the usefulness of flavor SU(3) symm...
1004.1949
Jean-Marc Laget
J.-M. Laget
Unitarity constraints on neutral pion electroproduction
7 pages; 12 figures Figures 1, 2, 10, 11, 12 updated. Axial-tensor coupling, instead of axial-vector coupling, at the b1NN vertex
Phys.Lett.B695:199-204,2011
10.1016/j.physletb.2010.11.014
JLAB-THY-10-1161
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
At large virtuality $Q^2$, the coupling to the vector meson production channels provides us with a natural explanation of the surprisingly large cross section of the neutral pion electroproduction recently measured at Jefferson Laboratory, without destroying the good agreement between the Regge pole model and the dat...
[ { "created": "Mon, 12 Apr 2010 13:21:00 GMT", "version": "v1" }, { "created": "Wed, 13 Oct 2010 16:55:29 GMT", "version": "v2" } ]
2011-06-27
[ [ "Laget", "J. -M.", "" ] ]
At large virtuality $Q^2$, the coupling to the vector meson production channels provides us with a natural explanation of the surprisingly large cross section of the neutral pion electroproduction recently measured at Jefferson Laboratory, without destroying the good agreement between the Regge pole model and the data ...
1509.00197
Alexander Nesterenko
A.V.Nesterenko
Hadronic contributions to electroweak observables within DPT
Talk given at 18th International QCD Conference (QCD 15), 29 June - 3 July 2015, Montpellier, France; 5 pages, 3 figures
Nucl. Part. Phys. Proc. 270, 206 (2016)
10.1016/j.nuclphysbps.2016.02.041
null
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Dispersive approach to quantum chromodynamics is applied to the assessment of hadronic contributions to electroweak observables. The employed approach merges the corresponding perturbative input with intrinsically nonperturbative constraints, which originate in the respective kinematic restrictions. The evaluated had...
[ { "created": "Tue, 1 Sep 2015 09:46:04 GMT", "version": "v1" } ]
2016-04-18
[ [ "Nesterenko", "A. V.", "" ] ]
Dispersive approach to quantum chromodynamics is applied to the assessment of hadronic contributions to electroweak observables. The employed approach merges the corresponding perturbative input with intrinsically nonperturbative constraints, which originate in the respective kinematic restrictions. The evaluated hadro...
0706.1591
Cyrille Marquet
Cyrille Marquet
Hard diffraction and the Color Glass Condensate
4 pages, 2 figures, Proceedings of the XVth International Workshop on Deep Inelastic Scattering (DIS07), Munich, Germany, April 16-20 2007
null
null
null
hep-ph
null
Following the Good-and-Walker picture, hard diffraction in the high-energy/small-x limit of QCD can be described in terms of eigenstates of the scattering matrix off a Color Glass Condensate. From the CGC non-linear evolution equations, it is then possible to derive the behavior of diffractive cross-sections at small...
[ { "created": "Mon, 11 Jun 2007 22:38:17 GMT", "version": "v1" } ]
2007-06-13
[ [ "Marquet", "Cyrille", "" ] ]
Following the Good-and-Walker picture, hard diffraction in the high-energy/small-x limit of QCD can be described in terms of eigenstates of the scattering matrix off a Color Glass Condensate. From the CGC non-linear evolution equations, it is then possible to derive the behavior of diffractive cross-sections at small $...
1812.09671
Shantanu Desai
Ashwani Rajan, Shantanu Desai
A meta-analysis of neutron lifetime measurements
6 pages
Prog Theor Exp Phys (2020)
10.1093/ptep/ptz153
null
hep-ph astro-ph.CO hep-ex nucl-ex physics.data-an
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculated the median as well as weighted mean central estimates for the neutron lifetime, from a subset of measurements compiled in the 2019 update of the Particle Data Group (PDG). We then reconstruct the error distributions for the residuals using three different central estimates and then check for consistency...
[ { "created": "Sun, 23 Dec 2018 08:37:01 GMT", "version": "v1" }, { "created": "Wed, 13 Nov 2019 08:47:18 GMT", "version": "v2" } ]
2020-01-29
[ [ "Rajan", "Ashwani", "" ], [ "Desai", "Shantanu", "" ] ]
We calculated the median as well as weighted mean central estimates for the neutron lifetime, from a subset of measurements compiled in the 2019 update of the Particle Data Group (PDG). We then reconstruct the error distributions for the residuals using three different central estimates and then check for consistency w...
0903.0747
Poulose Poulose Dr.
S. Hesselbach (IPPP, University of Durham, UK), S. Moretti (University of Southampton, UK), S. Munir (Instituto de Fisica, Mexico), P. Poulose (IIT Guwahati, India)
Explicit CP violation in the MSSM through gg-->H1-->gamma.gamma
16 pages, latex, corrected version
Phys.Rev.D82:074004,2010
10.1103/PhysRevD.82.074004
DCPT-09-26, IPPP-09-13, SHEP-08-36
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We prove the strong sensitivity of the gg --> H1 --> gamma.gamma cross section at the Large Hadron Collider on the explicitly CP-violating phases of the Minimal Supersymmetric Standard Model, where H1 is the lightest Supersymmetric Higgs boson.
[ { "created": "Wed, 4 Mar 2009 12:25:03 GMT", "version": "v1" }, { "created": "Fri, 13 Mar 2009 17:13:57 GMT", "version": "v2" }, { "created": "Thu, 19 Mar 2009 13:24:42 GMT", "version": "v3" }, { "created": "Thu, 11 Nov 2010 13:25:54 GMT", "version": "v4" } ]
2010-11-12
[ [ "Hesselbach", "S.", "", "IPPP, University of Durham, UK" ], [ "Moretti", "S.", "", "University\n of Southampton, UK" ], [ "Munir", "S.", "", "Instituto de Fisica, Mexico" ], [ "Poulose", "P.", "", "IIT\n Guwahati, India" ] ]
We prove the strong sensitivity of the gg --> H1 --> gamma.gamma cross section at the Large Hadron Collider on the explicitly CP-violating phases of the Minimal Supersymmetric Standard Model, where H1 is the lightest Supersymmetric Higgs boson.
1007.5411
Robert Harlander
Robert V. Harlander, Kemal J. Ozeren, Marius Wiesemann
Higgs plus jet production in bottom quark annihilation at next-to-leading order
11 pages, 7 figures
Phys.Lett.B693:269-273,2010
10.1016/j.physletb.2010.08.038
WUB/10-20
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The cross section for Higgs+jet production in bottom quark annihilation is calculated through NLO QCD. The five-flavour scheme is used to derive this contribution to the Higgs+jet production cross section which becomes numerically important in the MSSM for large values of tan(beta). We present numerical results for a...
[ { "created": "Fri, 30 Jul 2010 10:54:28 GMT", "version": "v1" } ]
2014-11-21
[ [ "Harlander", "Robert V.", "" ], [ "Ozeren", "Kemal J.", "" ], [ "Wiesemann", "Marius", "" ] ]
The cross section for Higgs+jet production in bottom quark annihilation is calculated through NLO QCD. The five-flavour scheme is used to derive this contribution to the Higgs+jet production cross section which becomes numerically important in the MSSM for large values of tan(beta). We present numerical results for a p...
hep-ph/9904328
Carlo Giunti
S.M. Bilenky and C. Giunti
Neutrino oscillation constraints on neutrinoless double-beta decay
6 pages. Talk presented by C. Giunti at WIN99, Cape Town, South Africa, 24-30 January 1999
null
null
UWThPh-1999-26, DFTT 21/99
hep-ph
null
It is shown that, in the framework of the scheme with three-neutrino mixing and a mass hierarchy, the results of neutrino oscillation experiments imply an upper bound of about 10^{-2} eV for the effective Majorana mass in neutrinoless double-beta decay. The schemes with four massive neutrinos are also briefly discuss...
[ { "created": "Wed, 14 Apr 1999 09:49:00 GMT", "version": "v1" } ]
2007-05-23
[ [ "Bilenky", "S. M.", "" ], [ "Giunti", "C.", "" ] ]
It is shown that, in the framework of the scheme with three-neutrino mixing and a mass hierarchy, the results of neutrino oscillation experiments imply an upper bound of about 10^{-2} eV for the effective Majorana mass in neutrinoless double-beta decay. The schemes with four massive neutrinos are also briefly discussed...
1504.00991
Nikolai Kivel
N. Kivel and M. Vanderhaeghen
Wide angle Compton scattering on the proton: study of power suppressed corrections
15 pages, 5 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the wide angle Compton scattering process on a proton within the soft collinear factorization (SCET) framework. The main purpose of this work is to estimate the effect due to certain power suppressed corrections. We consider all possible kinematical power corrections and also include the subleading amplitude...
[ { "created": "Sat, 4 Apr 2015 08:41:43 GMT", "version": "v1" } ]
2015-04-07
[ [ "Kivel", "N.", "" ], [ "Vanderhaeghen", "M.", "" ] ]
We study the wide angle Compton scattering process on a proton within the soft collinear factorization (SCET) framework. The main purpose of this work is to estimate the effect due to certain power suppressed corrections. We consider all possible kinematical power corrections and also include the subleading amplitudes ...
2207.09365
Jaume Tarr\'us Castell\`a
Jaume Tarr\'us Castell\`a
Heavy meson thresholds in Born-Oppenheimer Effective field theory
28 pages, 11 figures. Typos corrected
null
10.1103/PhysRevD.106.094020
null
hep-ph hep-ex hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider heavy meson-antimeson pairs and their coupling to quarkonium in the context of nonrelativistic EFTs incorporating the adiabatic expansion. We work out all the leading order couplings of quarkonium to heavy meson-antimeson pairs and obtain their contributions to the masses and widths of quarkonia. We match...
[ { "created": "Tue, 19 Jul 2022 16:09:26 GMT", "version": "v1" }, { "created": "Thu, 17 Nov 2022 17:55:03 GMT", "version": "v2" }, { "created": "Tue, 16 Jan 2024 14:29:30 GMT", "version": "v3" } ]
2024-01-17
[ [ "Castellà", "Jaume Tarrús", "" ] ]
We consider heavy meson-antimeson pairs and their coupling to quarkonium in the context of nonrelativistic EFTs incorporating the adiabatic expansion. We work out all the leading order couplings of quarkonium to heavy meson-antimeson pairs and obtain their contributions to the masses and widths of quarkonia. We match t...
1704.08512
Kei Yagyu
Simone Blasi, Stefania De Curtis, Kei Yagyu
Effects of custodial symmetry breaking in the Georgi-Machacek model at high energies
25 pages, 13 figures
Phys. Rev. D 96, 015001 (2017)
10.1103/PhysRevD.96.015001
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The model proposed by Georgi and Machacek enables the Higgs sector to involve isospin triplet scalar fields while retaining a custodial $SU(2)_V$ symmetry in the potential and thus ensuring the electroweak $\rho$ parameter to be one at tree level. This custodial symmetry, however, is explicitly broken by loop effects...
[ { "created": "Thu, 27 Apr 2017 11:24:20 GMT", "version": "v1" } ]
2017-07-12
[ [ "Blasi", "Simone", "" ], [ "De Curtis", "Stefania", "" ], [ "Yagyu", "Kei", "" ] ]
The model proposed by Georgi and Machacek enables the Higgs sector to involve isospin triplet scalar fields while retaining a custodial $SU(2)_V$ symmetry in the potential and thus ensuring the electroweak $\rho$ parameter to be one at tree level. This custodial symmetry, however, is explicitly broken by loop effects o...
2311.07859
Jose Jorge Medina Serna
Alejandro Ayala, Santiago Bernal-Langarica, Isabel Dom\'inguez Jim\'enez, Ivonne Maldonado, Jos\'e Jorge Medina-Serna, Javier Rend\'on and Mar\'ia Elena Tejeda-Yeomans
Relaxation time for the alignment between quark spin and angular velocity in a rotating QCD medium
9 pages, 10 figures
null
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We compute the relaxation times for massive quarks and anti-quarks to align their spins with the angular velocity in a rigidly rotating medium at finite temperature and baryon density. The rotation effects are implemented using a fermion propagator immersed in a cylindrical rotating environment. The relaxation time i...
[ { "created": "Tue, 14 Nov 2023 02:24:08 GMT", "version": "v1" }, { "created": "Wed, 26 Jun 2024 18:34:07 GMT", "version": "v2" } ]
2024-06-28
[ [ "Ayala", "Alejandro", "" ], [ "Bernal-Langarica", "Santiago", "" ], [ "Jiménez", "Isabel Domínguez", "" ], [ "Maldonado", "Ivonne", "" ], [ "Medina-Serna", "José Jorge", "" ], [ "Rendón", "Javier", "" ], [ "Tejeda-...
We compute the relaxation times for massive quarks and anti-quarks to align their spins with the angular velocity in a rigidly rotating medium at finite temperature and baryon density. The rotation effects are implemented using a fermion propagator immersed in a cylindrical rotating environment. The relaxation time is ...
1601.02027
Alexander Huss
Stefan Dittmaier, Alexander Huss, Christian Schwinn
Dominant $\mathcal{O}(\alpha_s\alpha)$ corrections to Drell-Yan processes in the resonance region
16 pages, 6 figures, to appear in the proceedings of the 12th International Symposium on Radiative Corrections (Radcor 2015) and LoopFest XIV (Radiative Corrections for the LHC and Future Colliders), UCLA Department of Physics & Astronomy Los Angeles, USA, 2015
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Apart from the well-known NNLO QCD and NLO electroweak corrections to W- and Z-boson production at hadron colliders, the most important fixed-order corrections are given by the mixed QCD-electroweak corrections of $\mathcal{O}(\alpha_s\alpha)$. The knowledge of these corrections is of particular importance to control...
[ { "created": "Fri, 8 Jan 2016 21:11:34 GMT", "version": "v1" } ]
2016-01-12
[ [ "Dittmaier", "Stefan", "" ], [ "Huss", "Alexander", "" ], [ "Schwinn", "Christian", "" ] ]
Apart from the well-known NNLO QCD and NLO electroweak corrections to W- and Z-boson production at hadron colliders, the most important fixed-order corrections are given by the mixed QCD-electroweak corrections of $\mathcal{O}(\alpha_s\alpha)$. The knowledge of these corrections is of particular importance to control t...
hep-ph/9608286
Supratim Sengupta
Sanatan Digal, Supratim Sengupta and Ajit M. Srivastava
Defect-Antidefect pair production via field oscillations
5 pages, 6 figures
Phys.Rev. D55 (1997) 3824-3829
10.1103/PhysRevD.55.3824
IP/BBSR/96-42
hep-ph cond-mat hep-th
null
We show that the mechanism of vortex-antivortex pair production via field oscillations, earlier proposed by two of us for systems with first order transitions in presence of explicit symmetry breaking, is in fact very generally applicable. We further argue that this mechanism applies to all sorts of topological defec...
[ { "created": "Sun, 11 Aug 1996 17:44:54 GMT", "version": "v1" } ]
2009-10-28
[ [ "Digal", "Sanatan", "" ], [ "Sengupta", "Supratim", "" ], [ "Srivastava", "Ajit M.", "" ] ]
We show that the mechanism of vortex-antivortex pair production via field oscillations, earlier proposed by two of us for systems with first order transitions in presence of explicit symmetry breaking, is in fact very generally applicable. We further argue that this mechanism applies to all sorts of topological defects...
1610.08748
Fabian Rennecke
Fabian Rennecke, Bernd-Jochen Schaefer
Fluctuation-induced modifications of the phase structure in (2+1)-flavor QCD
21 pages, 9 figures; v2: published version
Phys. Rev. D 96, 016009 (2017)
10.1103/PhysRevD.96.016009
null
hep-ph hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The low-energy sector of QCD with $N_f = 2\!+\!1$ dynamical quark flavors at non-vanishing chemical potential and temperature is studied with a non-perturbative functional renormalization group method. The analysis is performed in different truncations in order to explore fluctuation-induced modifications of the quar...
[ { "created": "Thu, 27 Oct 2016 12:31:16 GMT", "version": "v1" }, { "created": "Wed, 28 Jun 2017 09:41:59 GMT", "version": "v2" } ]
2017-07-26
[ [ "Rennecke", "Fabian", "" ], [ "Schaefer", "Bernd-Jochen", "" ] ]
The low-energy sector of QCD with $N_f = 2\!+\!1$ dynamical quark flavors at non-vanishing chemical potential and temperature is studied with a non-perturbative functional renormalization group method. The analysis is performed in different truncations in order to explore fluctuation-induced modifications of the quark-...
hep-ph/0507020
Malcolm Fairbairn
Jarah Evslin (Brussels U.) Malcolm Fairbairn (Stockholm U.)
Photon Mixing in Domain Walls and the Cosmic Coincidence Problem
4 pages, 3 figs h
JCAP 0602 (2006) 011
10.1088/1475-7516/2006/02/011
null
hep-ph astro-ph hep-th
null
A model is presented where there exists another U(1) gauge group which is extremely weakly coupled to that of QED except inside the core of domain walls. It is possible to choose parameters such that standard model photons crossing such a wall are mixed maximally with the 'para-photons' of the other U(1). We use this...
[ { "created": "Sat, 2 Jul 2005 23:13:40 GMT", "version": "v1" } ]
2009-11-11
[ [ "Evslin", "Jarah", "", "Brussels U." ], [ "Fairbairn", "Malcolm", "", "Stockholm U." ] ]
A model is presented where there exists another U(1) gauge group which is extremely weakly coupled to that of QED except inside the core of domain walls. It is possible to choose parameters such that standard model photons crossing such a wall are mixed maximally with the 'para-photons' of the other U(1). We use this m...
2408.01190
Vladimir Skalozub
Volodymyr Skalozub
Spontaneous magnetization and effective interactions in QGP at high temperature
2 figures
null
null
null
hep-ph
http://creativecommons.org/publicdomain/zero/1.0/
In quark-gluon plasma (QGP), at higher deconfinement temperatures $T \ge T_d$ the spontaneous generation of color magnetic fields, $b^3(T), b^8(T) \not = 0$ (3, 8 are color indexes), and usual magnetic field $b(T) \not = 0$ happens. Simultaneously, the Polyakov loop and/or algebraically related to it $A_0(T)$ condens...
[ { "created": "Fri, 2 Aug 2024 11:18:14 GMT", "version": "v1" } ]
2024-08-05
[ [ "Skalozub", "Volodymyr", "" ] ]
In quark-gluon plasma (QGP), at higher deconfinement temperatures $T \ge T_d$ the spontaneous generation of color magnetic fields, $b^3(T), b^8(T) \not = 0$ (3, 8 are color indexes), and usual magnetic field $b(T) \not = 0$ happens. Simultaneously, the Polyakov loop and/or algebraically related to it $A_0(T)$ condensat...
2201.06316
Christian Bierlich
Christian Bierlich, Smita Chakraborty, G\"osta Gustafson, Leif L\"onnblad
Hyperfine splitting effects in string hadronization
17 pages, 4 figures
null
10.1140/epjc/s10052-022-10172-9
LU TP 22-02, MCnet-22-01
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We revisit the recipe for hadron formation in the Lund string hadronization model. Given an incoming quark or quark-diquark pair, weights for hadron formation are updated to take hyperfine splitting effects arising from the mass difference between u, d-type and s-type quarks. We find that the procedure improves the d...
[ { "created": "Mon, 17 Jan 2022 10:03:43 GMT", "version": "v1" } ]
2022-03-30
[ [ "Bierlich", "Christian", "" ], [ "Chakraborty", "Smita", "" ], [ "Gustafson", "Gösta", "" ], [ "Lönnblad", "Leif", "" ] ]
We revisit the recipe for hadron formation in the Lund string hadronization model. Given an incoming quark or quark-diquark pair, weights for hadron formation are updated to take hyperfine splitting effects arising from the mass difference between u, d-type and s-type quarks. We find that the procedure improves the des...
hep-ph/9307289
null
P.Lipari (INFN sezione di Roma)
TeV Muons in Hadronic Showers
standard latex, 17 pages + 16 figures (not included available on request); preprint 956, Dipartimento di Fisica Universita' di Roma "La Sapienza", and INFN sezione di Roma
Astropart.Phys.1:399-416,1993
10.1016/0927-6505(93)90006-Y
null
hep-ph
null
{}From the study of the multiple muon events in deep underground detectors, it is possible to extract information about the spectrum and composition of the primary cosmic rays. In this work the number of TeV muons produced by a primary cosmic ray of a given energy and zenith angle is computed using analytic and monte...
[ { "created": "Fri, 16 Jul 1993 22:16:23 GMT", "version": "v1" } ]
2010-11-01
[ [ "Lipari", "P.", "", "INFN sezione di Roma" ] ]
{}From the study of the multiple muon events in deep underground detectors, it is possible to extract information about the spectrum and composition of the primary cosmic rays. In this work the number of TeV muons produced by a primary cosmic ray of a given energy and zenith angle is computed using analytic and monteca...
hep-ph/0204275
Micaela Oertel
M. Buballa, J. Hosek, M. Oertel
Anisotropic admixture in color-superconducting quark matter
v2: references added, angular dependence of the gap clarified, v3: extended discussion, typo in eq. (5) corrected, version accepted for publication in PRL
Phys.Rev.Lett.90:182002,2003
10.1103/PhysRevLett.90.182002
null
hep-ph nucl-th
null
The analysis of color-superconducting two-flavor deconfined quark matter at moderate densities is extended to include a particular spin-1 Cooper pairing of those quarks which do not participate in the standard spin-0 diquark condensate. (i) The relativistic spin-1 gap Delta' implies spontaneous breakdown of rotation ...
[ { "created": "Wed, 24 Apr 2002 01:16:41 GMT", "version": "v1" }, { "created": "Mon, 6 May 2002 17:31:17 GMT", "version": "v2" }, { "created": "Wed, 2 Apr 2003 16:35:15 GMT", "version": "v3" } ]
2010-11-19
[ [ "Buballa", "M.", "" ], [ "Hosek", "J.", "" ], [ "Oertel", "M.", "" ] ]
The analysis of color-superconducting two-flavor deconfined quark matter at moderate densities is extended to include a particular spin-1 Cooper pairing of those quarks which do not participate in the standard spin-0 diquark condensate. (i) The relativistic spin-1 gap Delta' implies spontaneous breakdown of rotation in...
hep-ph/0403068
Thomas Schwetz
P. Huber, M. Lindner, M. Rolinec, T. Schwetz, W. Winter
Prospects of accelerator and reactor neutrino oscillation experiments for the coming ten years
38 pages, 13 figures, Eqs. (1) and (5) corrected, small corrections in Figs. 8, 9, and Tab. 4, discussion improved, ref. added, version to appear in PRD, high resolution figures are available at http://www.sns.ias.edu/~winter/figs0403068.html
Phys.Rev. D70 (2004) 073014
10.1103/PhysRevD.70.073014
TUM-HEP-545/04, MPP-2004-28
hep-ph hep-ex
null
We analyze the physics potential of long baseline neutrino oscillation experiments planned for the coming ten years, where the main focus is the sensitivity limit to the small mixing angle $\theta_{13}$. The discussed experiments include the conventional beam experiments MINOS, ICARUS, and OPERA, which are under cons...
[ { "created": "Fri, 5 Mar 2004 17:44:27 GMT", "version": "v1" }, { "created": "Wed, 13 Oct 2004 08:56:05 GMT", "version": "v2" } ]
2009-11-10
[ [ "Huber", "P.", "" ], [ "Lindner", "M.", "" ], [ "Rolinec", "M.", "" ], [ "Schwetz", "T.", "" ], [ "Winter", "W.", "" ] ]
We analyze the physics potential of long baseline neutrino oscillation experiments planned for the coming ten years, where the main focus is the sensitivity limit to the small mixing angle $\theta_{13}$. The discussed experiments include the conventional beam experiments MINOS, ICARUS, and OPERA, which are under constr...
2209.15244
Yuta Hamada
Yuta Hamada, Juven Wang
Flavor Hierarchy from Smooth Confinement
11 pages, 1 figure (v1); references add, modifications for clarity (v2); matches published version (v3)
Phys. Rev. D 108, 016018 (2023)
10.1103/PhysRevD.108.016018
KEK-TH-2452
hep-ph cond-mat.str-el hep-lat hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a model to explain the Standard Model flavor hierarchy. Our model is based on explicit smooth confinement (namely confinement without chiral symmetry breaking in a supersymmetric gauge theory) at an intermediate energy scale, before the electroweak symmetry breaking by the Higgs condensation at lower energ...
[ { "created": "Fri, 30 Sep 2022 05:32:36 GMT", "version": "v1" }, { "created": "Thu, 20 Oct 2022 02:35:45 GMT", "version": "v2" }, { "created": "Wed, 2 Aug 2023 23:41:48 GMT", "version": "v3" } ]
2023-08-04
[ [ "Hamada", "Yuta", "" ], [ "Wang", "Juven", "" ] ]
We present a model to explain the Standard Model flavor hierarchy. Our model is based on explicit smooth confinement (namely confinement without chiral symmetry breaking in a supersymmetric gauge theory) at an intermediate energy scale, before the electroweak symmetry breaking by the Higgs condensation at lower energy....
2209.10483
Chandrodoy Chattopadhyay
Chandrodoy Chattopadhyay (North Carolina State University), Ulrich Heinz (Ohio State University), and Thomas Schaefer (North Carolina State University)
Far-off-equilibrium expansion trajectories in the QCD phase diagram
25 pages, 14 figures (manuscript now in PRC format, added references)
null
10.1103/PhysRevC.107.044905
null
hep-ph nucl-th
http://creativecommons.org/licenses/by/4.0/
We consider the hydrodynamic evolution of a quark-gluon gas with non-zero quark masses and net baryon number in its phase diagram. For far-off-equilibrium initial conditions the expansion trajectories appear to violate simple rules based on the second law of thermodynamics that were previously established for ideal o...
[ { "created": "Wed, 21 Sep 2022 16:38:24 GMT", "version": "v1" }, { "created": "Sat, 1 Oct 2022 20:38:46 GMT", "version": "v2" } ]
2023-05-03
[ [ "Chattopadhyay", "Chandrodoy", "", "North Carolina State University" ], [ "Heinz", "Ulrich", "", "Ohio State University" ], [ "Schaefer", "Thomas", "", "North Carolina State\n University" ] ]
We consider the hydrodynamic evolution of a quark-gluon gas with non-zero quark masses and net baryon number in its phase diagram. For far-off-equilibrium initial conditions the expansion trajectories appear to violate simple rules based on the second law of thermodynamics that were previously established for ideal or ...
1409.8294
Grigory Ovanesyan
Grigory Ovanesyan, Tracy R. Slatyer, Iain W. Stewart
Heavy Dark Matter Annihilation from Effective Field Theory
5 pages, 2 figures
Phys. Rev. Lett. 114, 211302 (2015)
10.1103/PhysRevLett.114.211302
ACFI-T14-18, MIT-CTP 4593
hep-ph astro-ph.CO astro-ph.HE nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We formulate an effective field theory description for SU(2)$_L$ triplet fermionic dark matter by combining nonrelativistic dark matter with gauge bosons in the soft-collinear effective theory. For a given dark matter mass, the annihilation cross section to line photons is obtained with 5% precision by simultaneously...
[ { "created": "Mon, 29 Sep 2014 20:00:17 GMT", "version": "v1" } ]
2015-06-03
[ [ "Ovanesyan", "Grigory", "" ], [ "Slatyer", "Tracy R.", "" ], [ "Stewart", "Iain W.", "" ] ]
We formulate an effective field theory description for SU(2)$_L$ triplet fermionic dark matter by combining nonrelativistic dark matter with gauge bosons in the soft-collinear effective theory. For a given dark matter mass, the annihilation cross section to line photons is obtained with 5% precision by simultaneously i...
1307.4082
Timothy Cohen
Timothy Cohen, Mariangela Lisanti, Aaron Pierce, and Tracy R. Slatyer
Wino Dark Matter Under Siege
29 pages plus references, 9 figures, 2 appendices; v2 references added; v3 minor changes, journal version
JCAP 1310 (2013) 061
10.1088/1475-7516/2013/10/061
MCTP-13-19, MIT-CTP 4482, SLAC-PUB-15664
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A fermion triplet of SU(2)_L - a wino - is a well-motivated dark matter candidate. This work shows that present-day wino annihilations are constrained by indirect detection experiments, with the strongest limits coming from H.E.S.S. and Fermi. The bounds on wino dark matter are presented as a function of mass for two...
[ { "created": "Mon, 15 Jul 2013 20:00:01 GMT", "version": "v1" }, { "created": "Thu, 15 Aug 2013 21:17:23 GMT", "version": "v2" }, { "created": "Sun, 24 Nov 2013 00:16:29 GMT", "version": "v3" } ]
2013-11-26
[ [ "Cohen", "Timothy", "" ], [ "Lisanti", "Mariangela", "" ], [ "Pierce", "Aaron", "" ], [ "Slatyer", "Tracy R.", "" ] ]
A fermion triplet of SU(2)_L - a wino - is a well-motivated dark matter candidate. This work shows that present-day wino annihilations are constrained by indirect detection experiments, with the strongest limits coming from H.E.S.S. and Fermi. The bounds on wino dark matter are presented as a function of mass for two s...
hep-ph/9404299
J. W. F. Valle
V. Semikoz and J. W. F. Valle
New Supernova Constraints on active-sterile neutrino conversions
12 pages, 1 figure, available upon request
Astropart.Phys.3:87-94,1995
10.1016/0927-6505(94)00029-3
null
hep-ph
null
We consider active-sterile neutrino conversions in a supernova in the presence of random magnetic field domains. For large enough fields the magnetization of the medium may enhance the active to sterile neutrino conversion rates. Neglecting neutrino transition magnetic moments we show that for KeV neutrino mass squar...
[ { "created": "Tue, 19 Apr 1994 19:00:00 GMT", "version": "v1" } ]
2009-09-25
[ [ "Semikoz", "V.", "" ], [ "Valle", "J. W. F.", "" ] ]
We consider active-sterile neutrino conversions in a supernova in the presence of random magnetic field domains. For large enough fields the magnetization of the medium may enhance the active to sterile neutrino conversion rates. Neglecting neutrino transition magnetic moments we show that for KeV neutrino mass squared...
hep-ph/9505339
Cliff Burgess
P. Bamert, C. P. Burgess and I. Maksymyk
NEW PHYSICS AND RECENT HIGH PRECISION ELECTROWEAK MEASUREMENTS
Plain TeX, 9 pages, one figure (uuencoded), and 8 tables
Phys.Lett. B356 (1995) 282-290
10.1016/0370-2693(95)00796-N
McGill-95/18, NEIP-95-005, UTTG-09-95
hep-ph
null
We analyze LEP and SLC data from the 1995 Winter Conferences for signals of new physics. We compare the data with the Standard Model (SM) as well as a number of test hypotheses concerning the nature of new physics: (i) nonstandard Zbb couplings, (ii) nonstandard Zff couplings for the entire third generation, (iii) no...
[ { "created": "Fri, 19 May 1995 03:07:43 GMT", "version": "v1" } ]
2009-10-28
[ [ "Bamert", "P.", "" ], [ "Burgess", "C. P.", "" ], [ "Maksymyk", "I.", "" ] ]
We analyze LEP and SLC data from the 1995 Winter Conferences for signals of new physics. We compare the data with the Standard Model (SM) as well as a number of test hypotheses concerning the nature of new physics: (i) nonstandard Zbb couplings, (ii) nonstandard Zff couplings for the entire third generation, (iii) nons...
hep-ph/9805358
Hong-Yi Zhou
Hong-Yi Zhou
CP Violation in Top Quark Pair Production at Hadron Colliders
28 pages,3 figures, 38 refs
Phys.Rev. D58 (1998) 114002
10.1103/PhysRevD.58.114002
HD-THEP-98-21,TUIMP-TH-98/96
hep-ph
null
CP violating effects in top quark pair production at the future 2 TeV $p\bar p$ Tevatron and 14 TeV $pp$ LHC colliders are investigated. We study three kinds of CP violating sources:the supersymmetric CP-odd phase of the stop trilinear soft breaking term: $arg(A_t)$, the CP-odd parameter in two-Higgs doublet extensio...
[ { "created": "Mon, 18 May 1998 15:15:11 GMT", "version": "v1" } ]
2009-10-31
[ [ "Zhou", "Hong-Yi", "" ] ]
CP violating effects in top quark pair production at the future 2 TeV $p\bar p$ Tevatron and 14 TeV $pp$ LHC colliders are investigated. We study three kinds of CP violating sources:the supersymmetric CP-odd phase of the stop trilinear soft breaking term: $arg(A_t)$, the CP-odd parameter in two-Higgs doublet extensions...
1711.10957
Javier Quilis
J. A. Casas, G. A. Gomez-Vargas, J. M. Moreno, J. Quilis and R. Ruiz de Austri
Extended Higgs-portal dark matter and the Fermi-LAT Galactic Center Excess
20 pages, 7 figures. Version published in JCAP
null
10.1088/1475-7516/2018/06/031
IFT-UAM/CSIC-17-113
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show that the Galactic Center Excess (GCE) emission, as recently updated by the Fermi-LAT Collaboration, could be explained by the sum of Fermi-bubbles-like emission plus dark matter (DM) annihilation, in the context of a scalar-singlet Higgs portal scenario (SHP). In fact, the standard SHP, where the DM particle,...
[ { "created": "Wed, 29 Nov 2017 16:42:43 GMT", "version": "v1" }, { "created": "Wed, 25 Jul 2018 09:44:40 GMT", "version": "v2" } ]
2018-07-26
[ [ "Casas", "J. A.", "" ], [ "Gomez-Vargas", "G. A.", "" ], [ "Moreno", "J. M.", "" ], [ "Quilis", "J.", "" ], [ "de Austri", "R. Ruiz", "" ] ]
We show that the Galactic Center Excess (GCE) emission, as recently updated by the Fermi-LAT Collaboration, could be explained by the sum of Fermi-bubbles-like emission plus dark matter (DM) annihilation, in the context of a scalar-singlet Higgs portal scenario (SHP). In fact, the standard SHP, where the DM particle, $...
1206.4993
Satoshi Shirai
Hitoshi Murayama, Yasunori Nomura, Satoshi Shirai, and Kohsaku Tobioka
Compact Supersymmetry
6 pages 5 figures, version accepted for publication in PRD. SLHA files are available at http://www-theory.lbl.gov/~shirai/compactSUSY.php
null
10.1103/PhysRevD.86.115014
UCB-PTH-12/08; IPMU12-0127
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Supersymmetry broken geometrically in extra dimensions naturally leads to a nearly degenerate spectrum for superparticles, ameliorating the bounds from the current searches at the LHC. We present a minimal such model with a single extra dimension, and show that it leads to viable phenomenology despite the fact that i...
[ { "created": "Thu, 21 Jun 2012 19:35:52 GMT", "version": "v1" }, { "created": "Sun, 9 Dec 2012 05:11:22 GMT", "version": "v2" } ]
2015-03-20
[ [ "Murayama", "Hitoshi", "" ], [ "Nomura", "Yasunori", "" ], [ "Shirai", "Satoshi", "" ], [ "Tobioka", "Kohsaku", "" ] ]
Supersymmetry broken geometrically in extra dimensions naturally leads to a nearly degenerate spectrum for superparticles, ameliorating the bounds from the current searches at the LHC. We present a minimal such model with a single extra dimension, and show that it leads to viable phenomenology despite the fact that it ...
hep-ph/0606160
Michael Strickland
Bjoern Schenke and Michael Strickland
Fermionic Collective Modes of an Anisotropic Quark-Gluon Plasma
16 pages, 8 figures; v2 typos fixed and one reference added
Phys. Rev. D 74, 065004 (2006)
10.1103/PhysRevD.74.065004
null
hep-ph
null
We determine the fermionic collective modes of a quark-gluon plasma which is anisotropic in momentum space. We calculate the fermion self-energy in both the imaginary- and real-time formalisms and find that numerically and analytically (for two special cases) there are no unstable fermionic modes. In addition we demo...
[ { "created": "Wed, 14 Jun 2006 10:59:46 GMT", "version": "v1" }, { "created": "Tue, 20 Jun 2006 11:56:32 GMT", "version": "v2" } ]
2008-10-18
[ [ "Schenke", "Bjoern", "" ], [ "Strickland", "Michael", "" ] ]
We determine the fermionic collective modes of a quark-gluon plasma which is anisotropic in momentum space. We calculate the fermion self-energy in both the imaginary- and real-time formalisms and find that numerically and analytically (for two special cases) there are no unstable fermionic modes. In addition we demons...
2301.02846
Yu-Gang Ma
Ting-Ting Wang, Yu-Gang Ma, Song Zhang
Simulations of momentum correlation functions of light (anti)nuclei in relativistic heavy-ion collisions at $\sqrt{s_{NN}}$ = 39 GeV
12 pages, 11 figures; Phys. Rev. C, accepted
null
null
null
hep-ph nucl-th
http://creativecommons.org/licenses/by/4.0/
Momentum correlation functions of light (anti)nuclei formed by the coalescence mechanism of (anti)nucleons are calculated for several central heavy-ion collision systems, namely $_{5}^{10}\textrm{B}+_{5}^{10}\textrm{B}$, $_{8}^{16}\textrm{O}+_{8}^{16}\textrm{O}$, $_{20}^{40}\textrm{Ca}+_{20}^{40}\textrm{Ca}$ as well ...
[ { "created": "Sat, 7 Jan 2023 13:15:55 GMT", "version": "v1" } ]
2023-01-10
[ [ "Wang", "Ting-Ting", "" ], [ "Ma", "Yu-Gang", "" ], [ "Zhang", "Song", "" ] ]
Momentum correlation functions of light (anti)nuclei formed by the coalescence mechanism of (anti)nucleons are calculated for several central heavy-ion collision systems, namely $_{5}^{10}\textrm{B}+_{5}^{10}\textrm{B}$, $_{8}^{16}\textrm{O}+_{8}^{16}\textrm{O}$, $_{20}^{40}\textrm{Ca}+_{20}^{40}\textrm{Ca}$ as well as...
1411.4773
Gudrun Hiller
Gudrun Hiller, Martin Schmaltz
Diagnosing lepton-nonuniversality in $b \to s \ell \ell$
20 pages, 4 plots; axialvector K1 included
null
10.1007/JHEP02(2015)055
DO-TH 14/25, QFET-2014-21
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Ratios of branching fractions of semileptonic B decays, $(B \to H \mu \mu)$ over $(B \to H ee)$ with $H=K, K^*,X_s, K_0(1430), \phi, \ldots$ are sensitive probes of lepton universality. In the Standard Model, the underlying flavor changing neutral current process $b\rightarrow s \ell \ell$ is lepton flavor universal....
[ { "created": "Tue, 18 Nov 2014 09:19:51 GMT", "version": "v1" }, { "created": "Sun, 8 Feb 2015 15:20:36 GMT", "version": "v2" } ]
2015-06-23
[ [ "Hiller", "Gudrun", "" ], [ "Schmaltz", "Martin", "" ] ]
Ratios of branching fractions of semileptonic B decays, $(B \to H \mu \mu)$ over $(B \to H ee)$ with $H=K, K^*,X_s, K_0(1430), \phi, \ldots$ are sensitive probes of lepton universality. In the Standard Model, the underlying flavor changing neutral current process $b\rightarrow s \ell \ell$ is lepton flavor universal. H...
hep-ph/9803233
Claudio M. Maekawa
C. M. Maekawa and M. R. Robilotta
Sigma-fields x Chiral Scalars in Nuclear Three Body Potentials
Latex, 22 pages, 7 figures appended with epsf.sty, to be appear in Phys. Rev C
Phys.Rev.C57:2839-2846,1998
10.1103/PhysRevC.57.2839
null
hep-ph
null
The scalar-isoscalar field of an effective chiral Lagrangian transforms differently in either linear or non-linear frameworks: in the former case it is the counterpart of the pion whereas in the latter it is chiral invariant on its own. We compare the predictions from these two models for nucleon interactions and fin...
[ { "created": "Tue, 3 Mar 1998 19:02:20 GMT", "version": "v1" } ]
2008-11-26
[ [ "Maekawa", "C. M.", "" ], [ "Robilotta", "M. R.", "" ] ]
The scalar-isoscalar field of an effective chiral Lagrangian transforms differently in either linear or non-linear frameworks: in the former case it is the counterpart of the pion whereas in the latter it is chiral invariant on its own. We compare the predictions from these two models for nucleon interactions and find ...
1704.06284
Andre Peshier
Greg Jackson and Andre Peshier
Low-shear QCD plasma from perturbation theory
4 pages, 2 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We argue that the phenomenologically inferred ratio of shear viscosity to entropy density of the quark-gluon plasma, $\eta/\s < 0.5$ near the deconfinement temperature $T_c$, can be understood from perturbative QCD. To rebut the widespread, opposite view we first show that, and why, the existing leading order result ...
[ { "created": "Thu, 20 Apr 2017 18:08:13 GMT", "version": "v1" } ]
2017-04-24
[ [ "Jackson", "Greg", "" ], [ "Peshier", "Andre", "" ] ]
We argue that the phenomenologically inferred ratio of shear viscosity to entropy density of the quark-gluon plasma, $\eta/\s < 0.5$ near the deconfinement temperature $T_c$, can be understood from perturbative QCD. To rebut the widespread, opposite view we first show that, and why, the existing leading order result in...
hep-ph/0506190
Konosuke Sawa
Konosuke Sawa
Muon anomalous magnetic moment due to the brane-stretching effect
17 pages, 1 figure, minor changed, accepted for Phys. Rev. D
Phys.Rev. D73 (2006) 025010
10.1103/PhysRevD.73.025010
null
hep-ph astro-ph gr-qc hep-th
null
We investigate the contribution of extra dimensions to the muon anomalous magnetic moment by using an ADD-type 6-dimensional model. This approach analyzes the extent of the influence of classical brane fluctuations on the magnetic moment. When we consider that the brane fluctuations are static in time, they add new p...
[ { "created": "Mon, 20 Jun 2005 11:24:58 GMT", "version": "v1" }, { "created": "Thu, 21 Jul 2005 10:30:42 GMT", "version": "v2" }, { "created": "Tue, 13 Sep 2005 14:39:00 GMT", "version": "v3" }, { "created": "Mon, 9 Jan 2006 15:49:48 GMT", "version": "v4" } ]
2007-05-23
[ [ "Sawa", "Konosuke", "" ] ]
We investigate the contribution of extra dimensions to the muon anomalous magnetic moment by using an ADD-type 6-dimensional model. This approach analyzes the extent of the influence of classical brane fluctuations on the magnetic moment. When we consider that the brane fluctuations are static in time, they add new pot...
hep-ph/9409258
Lu Cai-dian
Cai-Dian L\"u, Jing-Liang Hu and Chong-Shou Gao
Comments on QCD Corrections to $b \to s \gamma$ Decay
LaTex, 9 pages, 3 figures (not included). AS-ITP 94-45. This is a short outline of our paper submitted to Phys. Rev. D on Oct. 11 1993
Commun.Theor.Phys. 25 (1996) 347-352
null
null
hep-ph
null
We find some errors in previous calculation of leading log QCD corrections to $b \to s\gamma $ decay, which include corrections from $m_{top}$ to $M_W$ in addition to corrections from $M_{W}$ to $m_b$. The inclusive decay rate is found to be enhanced more than previous calculations. At $m_t=170$GeV, the running from ...
[ { "created": "Fri, 9 Sep 1994 01:15:06 GMT", "version": "v1" } ]
2016-08-14
[ [ "Lü", "Cai-Dian", "" ], [ "Hu", "Jing-Liang", "" ], [ "Gao", "Chong-Shou", "" ] ]
We find some errors in previous calculation of leading log QCD corrections to $b \to s\gamma $ decay, which include corrections from $m_{top}$ to $M_W$ in addition to corrections from $M_{W}$ to $m_b$. The inclusive decay rate is found to be enhanced more than previous calculations. At $m_t=170$GeV, the running from $m...
hep-ph/9501225
Alimi Ichola
M.A. ICHOLA and J. PARISI
Glueball plus Pion Production in Photon-Photon Collisions.
To appear in Zeit. fur Phys. C; Plain Latex file, 16 pages; 5 figures appended as a uuencoded postscript file.
Z.Phys. C66 (1995) 653-657
10.1007/BF01579640
LPC-93-06, College de France, IN2P3-CNRS, Paris, France;
hep-ph
null
We here compute the reaction $ \gamma \; \gamma \rightarrow G \; \pi^{0} $ for various glueball candidates $ G $ and their assumed quantum states, using a non-relativistic gluon bound-state model for the glueball.
[ { "created": "Fri, 6 Jan 1995 10:04:57 GMT", "version": "v1" } ]
2015-06-25
[ [ "ICHOLA", "M. A.", "" ], [ "PARISI", "J.", "" ] ]
We here compute the reaction $ \gamma \; \gamma \rightarrow G \; \pi^{0} $ for various glueball candidates $ G $ and their assumed quantum states, using a non-relativistic gluon bound-state model for the glueball.
2011.09496
Tongyan Lin
Simon Knapen, Jonathan Kozaczuk, Tongyan Lin
The Migdal effect in semiconductors
5+11 pages. v2: journal version with results updated to include ion effective charge
Phys. Rev. Lett. 127, 081805 (2021)
10.1103/PhysRevLett.127.081805
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
When a nucleus in an atom undergoes a collision, there is a small probability to inelastically excite an electron as a result of the Migdal effect. In this Letter, we present a first complete derivation of the Migdal effect from dark matter-nucleus scattering in semiconductors, which also accounts for multiphonon pro...
[ { "created": "Wed, 18 Nov 2020 19:06:16 GMT", "version": "v1" }, { "created": "Fri, 3 Sep 2021 18:23:41 GMT", "version": "v2" } ]
2021-09-07
[ [ "Knapen", "Simon", "" ], [ "Kozaczuk", "Jonathan", "" ], [ "Lin", "Tongyan", "" ] ]
When a nucleus in an atom undergoes a collision, there is a small probability to inelastically excite an electron as a result of the Migdal effect. In this Letter, we present a first complete derivation of the Migdal effect from dark matter-nucleus scattering in semiconductors, which also accounts for multiphonon produ...
1407.7176
Amir Fariborz
Amir H. Fariborz, Renata Jora, Joseph Schechter and M. Naeem Shahid
Probing scalar mesons in semi-leptonic decays of $D_s^+$, $D^+$ and $D^0$
null
null
10.1142/S0217751X15500128
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
With the primary motivation of probing the quark substructure of scalar mesons, a generalized linear sigma model for the lowest and the next-to-lowest scalar and pseudoscalar mesons is employed to investigate several semi-leptonic decays of $D$ mesons. The free parameters of the model (in its leading approximation) h...
[ { "created": "Sun, 27 Jul 2014 02:10:23 GMT", "version": "v1" } ]
2015-06-22
[ [ "Fariborz", "Amir H.", "" ], [ "Jora", "Renata", "" ], [ "Schechter", "Joseph", "" ], [ "Shahid", "M. Naeem", "" ] ]
With the primary motivation of probing the quark substructure of scalar mesons, a generalized linear sigma model for the lowest and the next-to-lowest scalar and pseudoscalar mesons is employed to investigate several semi-leptonic decays of $D$ mesons. The free parameters of the model (in its leading approximation) hav...
hep-ph/0703281
Stanislaw Jadach
S. Jadach, W. Placzek, M. Skrzypek, P. Stephens and Z. Was
Constrained MC for QCD evolution with rapidity ordering and minimum kT
Submitted to Computer Physics Communications
Comput.Phys.Commun.180:675-698,2009
10.1016/j.cpc.2008.11.014
FJPAN-IV-2007-3, CERN-PH-TH/2007-059
hep-ph
null
With the imminent start of LHC experiments, development of phenomenological tools, and in particular the Monte Carlo programs and algorithms, becomes urgent. A new algorithm for the generation of a parton shower initiated by the single initial hadron beam is presented. The new algorithm is of the class of the so call...
[ { "created": "Tue, 27 Mar 2007 19:25:56 GMT", "version": "v1" }, { "created": "Tue, 14 Aug 2007 13:56:13 GMT", "version": "v2" } ]
2010-03-25
[ [ "Jadach", "S.", "" ], [ "Placzek", "W.", "" ], [ "Skrzypek", "M.", "" ], [ "Stephens", "P.", "" ], [ "Was", "Z.", "" ] ]
With the imminent start of LHC experiments, development of phenomenological tools, and in particular the Monte Carlo programs and algorithms, becomes urgent. A new algorithm for the generation of a parton shower initiated by the single initial hadron beam is presented. The new algorithm is of the class of the so called...
1911.12819
Aleksey Rusov
Aleksey V. Rusov
Probing New Physics in $b \to d$ Transitions
16 pages, 3 figures, 1 table. Slightly modified version, published in JHEP
JHEP07 (2020) 158
10.1007/JHEP07(2020)158
IPPP/19/88
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recent experimental data on several observables in semileptonic $B$-meson decays are found to be in tension with the corresponding Standard Model predictions. Most of these deviations are related to $b \to c$ and $b \to s$ flavour changing transitions. In this work, we estimate possible New Physics effects in $b \to ...
[ { "created": "Thu, 28 Nov 2019 18:17:01 GMT", "version": "v1" }, { "created": "Fri, 24 Jul 2020 14:03:13 GMT", "version": "v2" } ]
2020-07-27
[ [ "Rusov", "Aleksey V.", "" ] ]
Recent experimental data on several observables in semileptonic $B$-meson decays are found to be in tension with the corresponding Standard Model predictions. Most of these deviations are related to $b \to c$ and $b \to s$ flavour changing transitions. In this work, we estimate possible New Physics effects in $b \to d ...
hep-ph/9410413
Matsuda Masahisa
Takemi HAYASHI, Yoshio Koide, Masahisa Matsuda, Morimitsu Tanimoto and Seiichi Wakaizumi
Electric Dipole Moments of Neutron and Electron in Two-Higgs-Doublet Model with Maximal $CP$ violation
15pages, UWThPh-1994-48, AUE-08-94, US-94-06. The post-script files of figures will be sent by request by electric mail
Phys.Lett.B348:489-495,1995
10.1016/0370-2693(95)00156-F
null
hep-ph
null
We study the electric dipole moments(EDM) of the neutron and the electron in the two-Higgs-doublet model, in the case that $CP$ symmetry is violated maximally in the neutral Higgs sector. We take account of the Weinberg's operator $O_{3g}=GG\t G$ as well as the operator $O_{qg}=\bar q\sigma\tilde Gq$ for the neutron,...
[ { "created": "Mon, 31 Oct 1994 12:03:52 GMT", "version": "v1" } ]
2010-11-01
[ [ "HAYASHI", "Takemi", "" ], [ "Koide", "Yoshio", "" ], [ "Matsuda", "Masahisa", "" ], [ "Tanimoto", "Morimitsu", "" ], [ "Wakaizumi", "Seiichi", "" ] ]
We study the electric dipole moments(EDM) of the neutron and the electron in the two-Higgs-doublet model, in the case that $CP$ symmetry is violated maximally in the neutral Higgs sector. We take account of the Weinberg's operator $O_{3g}=GG\t G$ as well as the operator $O_{qg}=\bar q\sigma\tilde Gq$ for the neutron, a...
1410.6216
Boris Blankleider
B. Blankleider, A. N. Kvinikhidze, Z. K. Silagadze
Gauge invariant formulation of 3$\gamma$ decay of particle-antiparticle bound states
33 pages, 11 figures, version accepted for publication in Phys Rev D
Phys. Rev. D 92, 045032 (2015)
10.1103/PhysRevD.92.045032
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We construct the gauge invariant three-photon decay amplitude of particle-antiparticle bound states modeled by the Dyson-Schwinger and Bethe-Salpeter equations. Application to the quark-antiquark ($q\bar{q}$) bound states is emphasized. An essential aspect of our formulation is that it applies to any underlying quant...
[ { "created": "Thu, 23 Oct 2014 00:25:27 GMT", "version": "v1" }, { "created": "Mon, 20 Jul 2015 13:37:31 GMT", "version": "v2" } ]
2015-09-02
[ [ "Blankleider", "B.", "" ], [ "Kvinikhidze", "A. N.", "" ], [ "Silagadze", "Z. K.", "" ] ]
We construct the gauge invariant three-photon decay amplitude of particle-antiparticle bound states modeled by the Dyson-Schwinger and Bethe-Salpeter equations. Application to the quark-antiquark ($q\bar{q}$) bound states is emphasized. An essential aspect of our formulation is that it applies to any underlying quantum...
2209.13093
Thomas Flacke
Alan S. Cornell, Aldo Deandrea, Thomas Flacke, Benjamin Fuks and Lara Mason
Top partners and scalar dark matter -- a non-minimal reappraisal
7 pages, 4 figures. v2: discussion on collider constraints extended
Phys.Rev.D 107 (2023) 7, 075004
10.1103/PhysRevD.107.075004
KIAS-A22010
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A large set of models beyond the Standard Model of particle physics suggest that the top quark plays a special role in fundamental interactions. At the same time some of these models predict that a particle responsible for dark matter is present in the physical spectrum of the theory, and in particular cases dark mat...
[ { "created": "Tue, 27 Sep 2022 01:01:59 GMT", "version": "v1" }, { "created": "Thu, 30 Mar 2023 06:01:02 GMT", "version": "v2" } ]
2023-04-11
[ [ "Cornell", "Alan S.", "" ], [ "Deandrea", "Aldo", "" ], [ "Flacke", "Thomas", "" ], [ "Fuks", "Benjamin", "" ], [ "Mason", "Lara", "" ] ]
A large set of models beyond the Standard Model of particle physics suggest that the top quark plays a special role in fundamental interactions. At the same time some of these models predict that a particle responsible for dark matter is present in the physical spectrum of the theory, and in particular cases dark matte...
hep-ph/0311105
Laura Reina
S. Dawson (BNL), C.B. Jackson (FSU), L.H. Orr (Rochester), L. Reina (FSU), D. Wackeroth (SUNY, Buffalo)
NLO QCD corrections to hadronic Higgs production with heavy quarks
6 pages, 6 figures, espcrc2.sty. Talk given at the International Conference QCD03, 2-7 July 2003, Montpellier, France. To be published in Nucl. Phys. B Proc. Suppl
null
10.1016/j.nuclphysbps.2004.04.146
BNL-HET-03/25, FSU-HEP-2003-1025, UB-HET-03/07
hep-ph
null
The production of a Higgs boson in association with a pair of top-antitop or bottom-antibottom quarks plays a very important role at both the Tevatron and the Large Hadron Collider. The theoretical prediction of the corresponding cross sections has been improved by including the complete next-to-leading order QCD cor...
[ { "created": "Sat, 8 Nov 2003 16:51:44 GMT", "version": "v1" } ]
2009-11-10
[ [ "Dawson", "S.", "", "BNL" ], [ "Jackson", "C. B.", "", "FSU" ], [ "Orr", "L. H.", "", "Rochester" ], [ "Reina", "L.", "", "FSU" ], [ "Wackeroth", "D.", "", "SUNY, Buffalo" ] ]
The production of a Higgs boson in association with a pair of top-antitop or bottom-antibottom quarks plays a very important role at both the Tevatron and the Large Hadron Collider. The theoretical prediction of the corresponding cross sections has been improved by including the complete next-to-leading order QCD corre...
hep-ph/0109203
Nello Paver
A. Pankov and N. Paver
Model independent constraints on contact interactions from polarized Bhabha scattering at LC
12 pages, latex, 6 figures
null
null
null
hep-ph
null
We discuss electron-electron contact-interaction searches in the process e^+e^- -->e^+e^- at a future e^+e^- Linear Collider with c.m. energy \sqrt{s}=0.5 TeV and with both beams longitudinally polarized. Our analysis is based on the measurement of the polarized differential cross sections, and allows to simultaneous...
[ { "created": "Fri, 21 Sep 2001 19:20:26 GMT", "version": "v1" } ]
2007-05-23
[ [ "Pankov", "A.", "" ], [ "Paver", "N.", "" ] ]
We discuss electron-electron contact-interaction searches in the process e^+e^- -->e^+e^- at a future e^+e^- Linear Collider with c.m. energy \sqrt{s}=0.5 TeV and with both beams longitudinally polarized. Our analysis is based on the measurement of the polarized differential cross sections, and allows to simultaneously...
1708.02678
Joachim Brod
Fady Bishara, Joachim Brod, Benjamin Grinstein, Jure Zupan
DirectDM: a tool for dark matter direct detection
19 pages, 2 figures; the companion code can be downloaded from https://directdm.github.io
null
null
DO-TH 17/11, OUTP-17-08P
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We provide a Mathematica package, DirectDM, that takes as input the Wilson coefficients of the relativistic effective theory describing the interactions of dark matter with quarks, gluons and photons, and matches it onto an effective theory describing the interactions of dark matter with neutrons and protons. The non...
[ { "created": "Tue, 8 Aug 2017 23:43:28 GMT", "version": "v1" } ]
2017-08-10
[ [ "Bishara", "Fady", "" ], [ "Brod", "Joachim", "" ], [ "Grinstein", "Benjamin", "" ], [ "Zupan", "Jure", "" ] ]
We provide a Mathematica package, DirectDM, that takes as input the Wilson coefficients of the relativistic effective theory describing the interactions of dark matter with quarks, gluons and photons, and matches it onto an effective theory describing the interactions of dark matter with neutrons and protons. The nonpe...
1410.6421
Vladimir Saleev
Maxim Nefedov and Vladimir Saleev
Heavy quarkonium production at the LHC in the framework of NRQCD and parton Reggeization approach
5 pages, 2 figures. Talk at the Helmholtz International Summer School "Physics of Heavy Quarks and Hadrons", JINR, Dubna, July 15 - 28, 2013
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Heavy quarkonium production in the framework of the nonrelativistic quantum chromodynamics and leading order of the parton Reggeization approach at the Tevatron and LHC Colliders is discussed. The new results, which are reviewed in this report, include the comparison with recent data on chi_{c1,c2} production from AT...
[ { "created": "Thu, 23 Oct 2014 17:17:38 GMT", "version": "v1" } ]
2014-10-24
[ [ "Nefedov", "Maxim", "" ], [ "Saleev", "Vladimir", "" ] ]
Heavy quarkonium production in the framework of the nonrelativistic quantum chromodynamics and leading order of the parton Reggeization approach at the Tevatron and LHC Colliders is discussed. The new results, which are reviewed in this report, include the comparison with recent data on chi_{c1,c2} production from ATLA...
1804.02373
Alejandro Gutierrez-Rodriguez
M. Koksal, A. A. Billur, A. Gutierrez-Rodriguez, M. A. Hernandez-Ruiz
Model-independent bounds probing on the electromagnetic dipole moments of the $\tau$-lepton at the CLIC
38 pages, 26 figures
Phys. Rev. D 98, 015017 (2018)
10.1103/PhysRevD.98.015017
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We establish model independent bounds on the anomalous magnetic and electric dipole moments of the tau-lepton using the two-photon processes $\gamma\gamma \to \tau^+\tau^-$ and $\gamma\gamma \to \tau^+\tau^-\gamma$. We use ${\cal L}=10, 50, 100, 300, 500, 1000, 1500, 2000, 3000 \hspace{0.8mm}fb^{-1}$ of data collecte...
[ { "created": "Fri, 6 Apr 2018 17:45:38 GMT", "version": "v1" } ]
2018-07-18
[ [ "Koksal", "M.", "" ], [ "Billur", "A. A.", "" ], [ "Gutierrez-Rodriguez", "A.", "" ], [ "Hernandez-Ruiz", "M. A.", "" ] ]
We establish model independent bounds on the anomalous magnetic and electric dipole moments of the tau-lepton using the two-photon processes $\gamma\gamma \to \tau^+\tau^-$ and $\gamma\gamma \to \tau^+\tau^-\gamma$. We use ${\cal L}=10, 50, 100, 300, 500, 1000, 1500, 2000, 3000 \hspace{0.8mm}fb^{-1}$ of data collected ...
1102.4700
Harry Lipkin J
Harry J. Lipkin
New $B^{\pm}\to K\pi$ data explain absence of CP violation Tree-penguin interference canceled by Pauli effects
21 pages, 3 figurew
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Observation of CP violation in $B^o\to K^\pm\pi^{\mp}$ decays and its absence in $B^+\to K^+\pi^o$ decays are explained in new improved data analysis of more precise $B\to K\pi$ data. Success of the "Lipkin Sum Rule" indicates that four $B\tow K\pi$ branching ratios are determined by three parameters, the penguin dia...
[ { "created": "Wed, 23 Feb 2011 09:38:47 GMT", "version": "v1" }, { "created": "Wed, 23 Mar 2011 22:12:50 GMT", "version": "v2" }, { "created": "Sat, 2 Apr 2011 20:06:54 GMT", "version": "v3" } ]
2011-04-05
[ [ "Lipkin", "Harry J.", "" ] ]
Observation of CP violation in $B^o\to K^\pm\pi^{\mp}$ decays and its absence in $B^+\to K^+\pi^o$ decays are explained in new improved data analysis of more precise $B\to K\pi$ data. Success of the "Lipkin Sum Rule" indicates that four $B\tow K\pi$ branching ratios are determined by three parameters, the penguin diagr...
1903.12168
Andrea Palessandro
Niklas G. Nielsen, Andrea Palessandro, Martin S. Sloth
Gravitational Atoms
31 pages, 7 figures
Phys. Rev. D 99, 123011 (2019)
10.1103/PhysRevD.99.123011
null
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Particles in a yet unexplored dark sector with sufficiently large mass and small gauge coupling may form purely gravitational atoms (quantum gravitational bound states) with a rich phenomenology. In particular, we investigate the possibility of having an observable signal of gravitational waves or ultra high energy c...
[ { "created": "Thu, 28 Mar 2019 17:53:48 GMT", "version": "v1" } ]
2019-06-26
[ [ "Nielsen", "Niklas G.", "" ], [ "Palessandro", "Andrea", "" ], [ "Sloth", "Martin S.", "" ] ]
Particles in a yet unexplored dark sector with sufficiently large mass and small gauge coupling may form purely gravitational atoms (quantum gravitational bound states) with a rich phenomenology. In particular, we investigate the possibility of having an observable signal of gravitational waves or ultra high energy cos...
hep-ph/9611453
Einan Gardi
Einan Gardi (Tel Aviv U.)
Why Pad\'e Approximants reduce the Renormalization-Scale dependence in QFT?
25 pages, LateX. Replaced so that the figures would fit into the page size
Phys.Rev. D56 (1997) 68-79
10.1103/PhysRevD.56.68
TAUP-2393-96
hep-ph
null
We prove that in the limit where the beta function is dominated by the 1-loop contribution (``large beta_0 limit'') diagonal Pad\'e Approximants (PA's) of perturbative series become exactly renormalization scale (RS) independent. This symmetry suggest that diagonal PA's are resumming correctly contributions from high...
[ { "created": "Wed, 27 Nov 1996 19:27:37 GMT", "version": "v1" }, { "created": "Mon, 2 Dec 1996 10:01:00 GMT", "version": "v2" } ]
2009-10-30
[ [ "Gardi", "Einan", "", "Tel Aviv U." ] ]
We prove that in the limit where the beta function is dominated by the 1-loop contribution (``large beta_0 limit'') diagonal Pad\'e Approximants (PA's) of perturbative series become exactly renormalization scale (RS) independent. This symmetry suggest that diagonal PA's are resumming correctly contributions from higher...
1504.06346
Patricia Magalhaes
P. C. Magalh\~aes and M. R. Robilotta
$D^+ \to K^- \pi^+ \pi^+$ - the weak vector current
22 pages, 15 figs
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Studies of D and B mesons decays into hadrons have been used to test the standard model in the last fifteen years. A heavy meson decay involves the combined effects of a primary weak vertex and subsequent hadronic final state interactions, which determine the shapes of Dalitz plots. The fact that final products invol...
[ { "created": "Thu, 23 Apr 2015 21:09:58 GMT", "version": "v1" } ]
2015-04-27
[ [ "Magalhães", "P. C.", "" ], [ "Robilotta", "M. R.", "" ] ]
Studies of D and B mesons decays into hadrons have been used to test the standard model in the last fifteen years. A heavy meson decay involves the combined effects of a primary weak vertex and subsequent hadronic final state interactions, which determine the shapes of Dalitz plots. The fact that final products involve...
hep-ph/0307163
Rabindra N. Mohapatra
Bhaskar Dutta and Rabindra N. Mohapatra
Lepton Electric Dipole Moments, Supersymmetric Seesaw and Leptogenesis Phase
22 pages, 6 figures, one reference added and monor typos corrected
Phys.Rev. D68 (2003) 113008
10.1103/PhysRevD.68.113008
UMD-PP-03-062
hep-ph
null
We calculate the lepton electric dipole moments in a class of supersymmetric seesaw models and explore the possibility that they may provide a way to probe some of the CP violating phases responsible for the origin of matter via leptogenesis. We show that in models where the right handed neutrino masses, $M_R$ arise ...
[ { "created": "Fri, 11 Jul 2003 16:14:03 GMT", "version": "v1" }, { "created": "Sun, 20 Jul 2003 20:02:43 GMT", "version": "v2" } ]
2009-11-10
[ [ "Dutta", "Bhaskar", "" ], [ "Mohapatra", "Rabindra N.", "" ] ]
We calculate the lepton electric dipole moments in a class of supersymmetric seesaw models and explore the possibility that they may provide a way to probe some of the CP violating phases responsible for the origin of matter via leptogenesis. We show that in models where the right handed neutrino masses, $M_R$ arise fr...
1412.7951
Fatemeh Najafi
Fatemeh Najafi Hossein Mehraban
Analysis of B to J a1(1260)in pertubative QCD approach
1figure. arXiv admin note: text overlap with arXiv:1203.6135 by other authors
Prog. Theor. Exp. Phys. 2015, 033B09
10.1093/ptep/ptv001
1409-023
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, we analyse the hadronic decay of B to J a1(1260) in pertubative QCD approach (pQCD), where a1(1260) is a axial-vector meson and J{psi} is a vector meson.
[ { "created": "Fri, 26 Dec 2014 15:55:52 GMT", "version": "v1" } ]
2015-03-24
[ [ "Mehraban", "Fatemeh Najafi Hossein", "" ] ]
In this paper, we analyse the hadronic decay of B to J a1(1260) in pertubative QCD approach (pQCD), where a1(1260) is a axial-vector meson and J{psi} is a vector meson.
hep-ph/9612404
Nikolai N. Achasov
M.N. Achasov (2), N.N. Achasov (1), V.B. Golubev (2), S.I. Serednyakov (2) ((1) S.L. Sobolev Institute for Mathematics, Novosibirsk, (2) G.I. Budker Institute for Nuclear Physics, Novosibirsk)
Isobar Electroproduction as a Background from Interaction of Beams with Residual Gas at $\phi$-Factories
10 pages, revtex, 2 ps files of figures, two misprints are corrected (in Eqs. (5) and (7) $\pi$ is removed), English is improved
Phys.Lett. B404 (1997) 173-178
10.1016/S0370-2693(97)00572-8
IM SB RAS NNA 8-96
hep-ph hep-ex
null
It is shown that when beams interact with a residual gas at $\phi$-factories the reaction of the electroproduction of the $\Delta (1232)$ isobar proceeds vigorously. The isobar decay gives $\sim 10^7$ pions during an effective year of $10^7$ s per meter of a residual gas. These pions are emitted largely across the be...
[ { "created": "Thu, 19 Dec 1996 07:59:59 GMT", "version": "v1" }, { "created": "Mon, 3 Feb 1997 12:14:03 GMT", "version": "v2" } ]
2009-10-30
[ [ "Achasov", "M. N.", "" ], [ "Achasov", "N. N.", "" ], [ "Golubev", "V. B.", "" ], [ "Serednyakov", "S. I.", "" ] ]
It is shown that when beams interact with a residual gas at $\phi$-factories the reaction of the electroproduction of the $\Delta (1232)$ isobar proceeds vigorously. The isobar decay gives $\sim 10^7$ pions during an effective year of $10^7$ s per meter of a residual gas. These pions are emitted largely across the beam...
hep-ph/0303174
Peschanski
R. Peschanski
Testing resummed NLO-BFKL kernels
12 pages,2 figures, To appear in the special issue of Acta Physica Polonica to celebrate the 65th Birthday of Professor Jan Kwiecinski
Acta Phys.Polon.B34:3001-3012,2003
null
null
hep-ph
null
We propose a new method to test the (resummed) next-to-leading-order BFKL evolution kernels using the Mellin transformed j-moments of the proton structure function F_2.
[ { "created": "Thu, 20 Mar 2003 10:41:34 GMT", "version": "v1" } ]
2014-11-17
[ [ "Peschanski", "R.", "" ] ]
We propose a new method to test the (resummed) next-to-leading-order BFKL evolution kernels using the Mellin transformed j-moments of the proton structure function F_2.
hep-ph/0012373
Stuart Raby
Stuart Raby (The Ohio State University and A. v. Humboldt Fellow, University of Bonn)
Neutrino Masses and SO(10) SUSY GUTs
5 pages, talk presented at NOW2000, Otranto, Italy, Sept. 2000 on work in collaboration with T. Blazek and K. Tobe
Nucl.Phys.Proc.Suppl. 100 (2001) 282-286; Int.J.Mod.Phys. A16S1B (2001) 569-575
10.1142/S0217751X01007510
null
hep-ph
null
In this talk I discuss the qualitative features of an SO(10) SUSY GUT with an SU(2)x U(1)$^n$ family symmetry. I then describe the global fit of this theory to precision electroweak data [including charged fermion masses and mixing angles]. Finally, the predictions of the model for neutrino masses and mixing are disc...
[ { "created": "Fri, 29 Dec 2000 13:05:08 GMT", "version": "v1" } ]
2009-10-31
[ [ "Raby", "Stuart", "", "The Ohio State University and A. v. Humboldt Fellow,\n University of Bonn" ] ]
In this talk I discuss the qualitative features of an SO(10) SUSY GUT with an SU(2)x U(1)$^n$ family symmetry. I then describe the global fit of this theory to precision electroweak data [including charged fermion masses and mixing angles]. Finally, the predictions of the model for neutrino masses and mixing are discus...
hep-ph/0112331
N. Nikolaev
A. Szczurek (Institute of Nuclear Physics, Cracow), N.N. Nikolaev (Landau Institut and IKP, FZJ) and J. Speth (IKP FZJ)
From soft to hard regime in elastic pion-pion scattering above resonances
16 pages, 11 figures
Phys.Rev. C66 (2002) 055206
10.1103/PhysRevC.66.055206
null
hep-ph
null
We discuss the onset of the dominance of the Glauber-Gribov-Landshoff (GGL) component of pQCD hard two-gluon (2G) exchange contribution to hard elastic $\pi\pi$ scattering at moderate energies . Such a hard $\pi\pi$ scattering could via final state interaction on the $\gamma \gamma \to \pi^+ \pi^-$ reaction in which ...
[ { "created": "Wed, 26 Dec 2001 17:05:59 GMT", "version": "v1" } ]
2009-11-07
[ [ "Szczurek", "A.", "", "Institute of Nuclear Physics, Cracow" ], [ "Nikolaev", "N. N.", "", "Landau Institut and IKP, FZJ" ], [ "Speth", "J.", "", "IKP FZJ" ] ]
We discuss the onset of the dominance of the Glauber-Gribov-Landshoff (GGL) component of pQCD hard two-gluon (2G) exchange contribution to hard elastic $\pi\pi$ scattering at moderate energies . Such a hard $\pi\pi$ scattering could via final state interaction on the $\gamma \gamma \to \pi^+ \pi^-$ reaction in which pQ...
2105.10512
Sebastian Macaluso
Kyle Cranmer, Matthew Drnevich, Sebastian Macaluso and Duccio Pappadopulo
Reframing Jet Physics with New Computational Methods
21 pages, 8 figures
null
10.1051/epjconf/202125103059
null
hep-ph hep-ex physics.data-an
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We reframe common tasks in jet physics in probabilistic terms, including jet reconstruction, Monte Carlo tuning, matrix element - parton shower matching for large jet multiplicity, and efficient event generation of jets in complex, signal-like regions of phase space. We also introduce Ginkgo, a simplified, generative...
[ { "created": "Fri, 21 May 2021 18:00:05 GMT", "version": "v1" } ]
2021-09-08
[ [ "Cranmer", "Kyle", "" ], [ "Drnevich", "Matthew", "" ], [ "Macaluso", "Sebastian", "" ], [ "Pappadopulo", "Duccio", "" ] ]
We reframe common tasks in jet physics in probabilistic terms, including jet reconstruction, Monte Carlo tuning, matrix element - parton shower matching for large jet multiplicity, and efficient event generation of jets in complex, signal-like regions of phase space. We also introduce Ginkgo, a simplified, generative m...
hep-ph/0511308
Vadim Naumov
Konstantin S. Kuzmin (JINR & ITEP), Vladimir V. Lyubushkin (JINR & Irkutsk State U.), and Vadim A. Naumov (JINR & INFN, Florence)
How to Sum Contributions into the Total Charged-Current Neutrino-Nucleon Cross Section
11 pages, 9 figures
null
null
null
hep-ph hep-ex nucl-ex nucl-th physics.acc-ph
null
The total charged-current (anti)neutrino-nucleon cross section is usually estimated by the sum of contributions from quasi-elastic scattering (QES), single-pion production through baryon resonances (RES), and deep inelastic scattering (DIS) with an appropriate scratching the phase space of the RES and DIS contributio...
[ { "created": "Mon, 28 Nov 2005 15:04:49 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kuzmin", "Konstantin S.", "", "JINR & ITEP" ], [ "Lyubushkin", "Vladimir V.", "", "JINR &\n Irkutsk State U." ], [ "Naumov", "Vadim A.", "", "JINR & INFN, Florence" ] ]
The total charged-current (anti)neutrino-nucleon cross section is usually estimated by the sum of contributions from quasi-elastic scattering (QES), single-pion production through baryon resonances (RES), and deep inelastic scattering (DIS) with an appropriate scratching the phase space of the RES and DIS contributions...
hep-ph/9904335
Kovalenko S. G.
Amand Faessler, T.S. Kosmas, Sergey Kovalenko and J.D. Vergados
Exotic muon-electron conversion in nuclei and R-parity violating supersymmetry
22 pages, 2 figures. Version appeared in Nucl.Phys. B
Nucl.Phys. B 587 (2000) 25-44
10.1016/S0550-3213(00)00446-6
null
hep-ph
null
The flavor violating $\mu^--e^-$ conversion in nuclei is studied within the minimal supersymmetric standard model. We focus on the R-parity violating contributions at tree level including the trilinear and the bilinear terms in the superpotential as well as in the soft supersymmetry breaking sector. The nucleon and n...
[ { "created": "Wed, 14 Apr 1999 20:50:54 GMT", "version": "v1" }, { "created": "Mon, 7 Feb 2000 17:41:09 GMT", "version": "v2" }, { "created": "Mon, 19 Feb 2001 19:40:09 GMT", "version": "v3" } ]
2009-10-31
[ [ "Faessler", "Amand", "" ], [ "Kosmas", "T. S.", "" ], [ "Kovalenko", "Sergey", "" ], [ "Vergados", "J. D.", "" ] ]
The flavor violating $\mu^--e^-$ conversion in nuclei is studied within the minimal supersymmetric standard model. We focus on the R-parity violating contributions at tree level including the trilinear and the bilinear terms in the superpotential as well as in the soft supersymmetry breaking sector. The nucleon and nuc...
1704.02911
Hua-Sheng Shao
Hua-Sheng Shao
Colored Particle Production in New Physics at NLO QCD and Its Matching to Parton Showers
12 pages, 3 figures, 2 tables, contribution to proceedings of XXIII Cracow EPIPHANY Conference, 9-12 January 2017, IFJ PAN, Cracow, Poland
null
10.5506/APhysPolB.48.1183
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this talk, I show the automated Monte Carlo simulations at next-to-leading order in QCD as well as its matching to parton showers are already feasible within the framework of \MG5aMC. I briefly overview the recent activities and take the colored particle production at the LHC as examples. The tools and the models ...
[ { "created": "Mon, 10 Apr 2017 15:36:52 GMT", "version": "v1" } ]
2017-08-02
[ [ "Shao", "Hua-Sheng", "" ] ]
In this talk, I show the automated Monte Carlo simulations at next-to-leading order in QCD as well as its matching to parton showers are already feasible within the framework of \MG5aMC. I briefly overview the recent activities and take the colored particle production at the LHC as examples. The tools and the models ar...
hep-ph/0308110
Tatsuo Kobayashi
Tetsutaro Higaki, Yoshiharu Kawamura, Tatsuo Kobayashi and Hiroaki Nakano
Anomalous U(1) D-term Contribution in Type I String Models
16 pages, latex, no figure
Phys.Rev. D69 (2004) 086004
10.1103/PhysRevD.69.086004
null
hep-ph hep-th
null
We study the $D$-term contribution for anomalous U(1) symmetries in type I string models and derive general formula for the $D$-term contribution, assuming that the dominant source of SUSY breaking is given by $F$-terms of the dilaton, (overall) moduli or twisted moduli fields. On the basis of the formula, we also po...
[ { "created": "Mon, 11 Aug 2003 07:10:45 GMT", "version": "v1" } ]
2009-11-10
[ [ "Higaki", "Tetsutaro", "" ], [ "Kawamura", "Yoshiharu", "" ], [ "Kobayashi", "Tatsuo", "" ], [ "Nakano", "Hiroaki", "" ] ]
We study the $D$-term contribution for anomalous U(1) symmetries in type I string models and derive general formula for the $D$-term contribution, assuming that the dominant source of SUSY breaking is given by $F$-terms of the dilaton, (overall) moduli or twisted moduli fields. On the basis of the formula, we also poin...
2111.04521
Maxim Malyshev
S. P. Baranov, A. Bermudez Martinez, H. Jung, A. V. Lipatov, M. A. Malyshev, S. Taheri Monfared
Discriminating the heavy jet production mechanisms in associated $Z$ + heavy flavor events at the LHC
11 pages, 4 figures
null
10.1140/epjc/s10052-022-10104-7
DESY-21-184
hep-ph
http://creativecommons.org/licenses/by/4.0/
We reconsider the associated $Z$ boson and charm or beauty jet production at the LHC with paying special attention to the formation dynamics of heavy jets. Two different approaches are studied: first one, where heavy quarks are produced in the hard scattering subprocesses, implemented in the Monte-Carlo generator PEG...
[ { "created": "Mon, 8 Nov 2021 14:09:31 GMT", "version": "v1" } ]
2022-03-09
[ [ "Baranov", "S. P.", "" ], [ "Martinez", "A. Bermudez", "" ], [ "Jung", "H.", "" ], [ "Lipatov", "A. V.", "" ], [ "Malyshev", "M. A.", "" ], [ "Monfared", "S. Taheri", "" ] ]
We reconsider the associated $Z$ boson and charm or beauty jet production at the LHC with paying special attention to the formation dynamics of heavy jets. Two different approaches are studied: first one, where heavy quarks are produced in the hard scattering subprocesses, implemented in the Monte-Carlo generator PEGAS...
1703.05345
Jihn E. Kim
Jihn E. Kim, Bumseok Kyae, Soonkeon Nam
The anomalous U(1) global symmetry and flavors from an SU(5) x SU(5)$'$ GUT in $Z_{12-I}$ orbifold compactification
18 pages, 4 figure
Eur. Phys. J. C77 (2017) 847
10.1140/epjc/s10052-017-5408-2
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In string compactifications, frequently there appears the anomalous U(1) gauge symmetry which belonged to E8$\times$E8 of the heterotic string. This anomalous U(1) gauge boson obtains mass at the compactification scale, just below $10^{18\,}$GeV, by absorbing one pseudoscalar (corresponding to the model-independent a...
[ { "created": "Wed, 15 Mar 2017 18:47:24 GMT", "version": "v1" }, { "created": "Fri, 9 Jun 2017 02:17:15 GMT", "version": "v2" }, { "created": "Thu, 23 Nov 2017 21:53:48 GMT", "version": "v3" } ]
2017-12-13
[ [ "Kim", "Jihn E.", "" ], [ "Kyae", "Bumseok", "" ], [ "Nam", "Soonkeon", "" ] ]
In string compactifications, frequently there appears the anomalous U(1) gauge symmetry which belonged to E8$\times$E8 of the heterotic string. This anomalous U(1) gauge boson obtains mass at the compactification scale, just below $10^{18\,}$GeV, by absorbing one pseudoscalar (corresponding to the model-independent axi...
2205.02235
Alexis Plascencia
Pavel Fileviez Perez, Elliot Golias, Alexis D. Plascencia
Two-Higgs-Doublet Model and Quark-Lepton Unification
16 pages, 10 figures
JHEP 08 (2022) 293
10.1007/JHEP08(2022)293
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
We study the Two-Higgs-Doublet Model predicted in the minimal theory for quark-lepton unification that can describe physics at the low scale. We discuss the relations among the different decay widths of the new Higgs bosons and study their phenomenology at the Large Hadron Collider. As a result of matter unification,...
[ { "created": "Wed, 4 May 2022 18:00:00 GMT", "version": "v1" } ]
2022-09-01
[ [ "Perez", "Pavel Fileviez", "" ], [ "Golias", "Elliot", "" ], [ "Plascencia", "Alexis D.", "" ] ]
We study the Two-Higgs-Doublet Model predicted in the minimal theory for quark-lepton unification that can describe physics at the low scale. We discuss the relations among the different decay widths of the new Higgs bosons and study their phenomenology at the Large Hadron Collider. As a result of matter unification, t...
hep-ph/9709234
Paul Stadler
A. Love and P. Stadler
The Supersymmetric Particle Spectrum in Orbifold Compactifications of String Theory
23 pages, 3 figures, LaTeX, uses epsf
Nucl.Phys.B515:34-54,1998
10.1016/S0550-3213(97)00824-9
null
hep-ph
null
The supersymmetry breaking parameters and the resulting supersymmetric particle spectrum are studied in orbifold compactifications of string theory under the assumption that unification of gauge coupling constants at about $10^{16}$ GeV is a consequence of large moduli dependent string loop threshold corrections. The...
[ { "created": "Wed, 3 Sep 1997 23:44:17 GMT", "version": "v1" } ]
2010-11-19
[ [ "Love", "A.", "" ], [ "Stadler", "P.", "" ] ]
The supersymmetry breaking parameters and the resulting supersymmetric particle spectrum are studied in orbifold compactifications of string theory under the assumption that unification of gauge coupling constants at about $10^{16}$ GeV is a consequence of large moduli dependent string loop threshold corrections. The e...
hep-ph/0602196
Elena G. Ferreiro
A. Capella, E. G. Ferreiro
Elliptic Flow and Fixed p_T Suppression in a Final State Interaction Model
21 pages, 6 figures
Phys.Rev.C75:024905,2007
10.1103/PhysRevC.75.024905
null
hep-ph
null
It has been shown that a final state interaction model, used to describe J/psi suppression, can also describe the fixed p_T suppression of the pi^0 (and charged pions) yield at all values of p_T, with a final state interaction cross-section sigma close to one milibarn. We propose an extension of the model to the pion...
[ { "created": "Tue, 21 Feb 2006 16:44:42 GMT", "version": "v1" }, { "created": "Thu, 11 May 2006 19:10:28 GMT", "version": "v2" } ]
2008-11-26
[ [ "Capella", "A.", "" ], [ "Ferreiro", "E. G.", "" ] ]
It has been shown that a final state interaction model, used to describe J/psi suppression, can also describe the fixed p_T suppression of the pi^0 (and charged pions) yield at all values of p_T, with a final state interaction cross-section sigma close to one milibarn. We propose an extension of the model to the pion m...
1108.5363
Inanc Sahin
I. Sahin and M. Koksal
Lepton flavor violation in medium energy setup of a beta-beam facility
15 pages, 5 figures
null
null
TFD 29 Congress Proceedings; BPL, 21, 211005, pp. 35 - 50
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We examine lepton flavor violating couplings of the neutrinos to W boson in medium energy setup of a beta-beam experiment. We show that muon production via quasielastic scattering and deep inelastic scattering processes nu_e n-> mu p and nu_e N-> mu X are very sensitive to W-mu-nu_e couplings. We perform a model inde...
[ { "created": "Fri, 26 Aug 2011 18:12:37 GMT", "version": "v1" } ]
2013-09-05
[ [ "Sahin", "I.", "" ], [ "Koksal", "M.", "" ] ]
We examine lepton flavor violating couplings of the neutrinos to W boson in medium energy setup of a beta-beam experiment. We show that muon production via quasielastic scattering and deep inelastic scattering processes nu_e n-> mu p and nu_e N-> mu X are very sensitive to W-mu-nu_e couplings. We perform a model indepe...
hep-ph/9911201
Jan Kalinowski
W. Krolikowski
An unorthodox alternative for righthanded neutrinos: lefthanded see-saw
LaTeX, 7 pages, no figures, four wrapping errors removed
Acta Phys.Polon. B31 (2000) 673-679
null
IFT/99-27
hep-ph
null
A new lefthanded see-saw mechanism is constructed, implying both the smallness of active-neutrino masses and decoupling of heavy passive neutrinos, similarly to the situation in the case of conventional see-saw. But now, in place of the conventional righthanded neutrinos, the lefthanded sterile neutrinos play the rol...
[ { "created": "Tue, 2 Nov 1999 13:21:19 GMT", "version": "v1" }, { "created": "Thu, 4 Nov 1999 09:08:28 GMT", "version": "v2" } ]
2007-05-23
[ [ "Krolikowski", "W.", "" ] ]
A new lefthanded see-saw mechanism is constructed, implying both the smallness of active-neutrino masses and decoupling of heavy passive neutrinos, similarly to the situation in the case of conventional see-saw. But now, in place of the conventional righthanded neutrinos, the lefthanded sterile neutrinos play the role ...
hep-ph/0104029
Dirk Merten
Dirk Merten, Ralf Ricken, Matthias Koll, Bernard Metsch, Herbert Petry
Weak Decays Of Heavy Mesons In A Covariant Quark Model
20 pages including 13 tables and 6 figures; Corrected typos
Eur.Phys.J.A13:477-491,2002
10.1007/s10050-002-8778-1
TK-01-08
hep-ph
null
In this paper we investigate weak decays of heavy mesons in the framework of a covariant quark model, which is based on the Bethe-Salpeter equation in instantaneous approximation. Apart from a phenomenological confinement potential, a residual interaction induced by instantons is adopted. Masses and many decay observ...
[ { "created": "Tue, 3 Apr 2001 12:55:59 GMT", "version": "v1" }, { "created": "Tue, 10 Apr 2001 11:45:14 GMT", "version": "v2" } ]
2011-07-19
[ [ "Merten", "Dirk", "" ], [ "Ricken", "Ralf", "" ], [ "Koll", "Matthias", "" ], [ "Metsch", "Bernard", "" ], [ "Petry", "Herbert", "" ] ]
In this paper we investigate weak decays of heavy mesons in the framework of a covariant quark model, which is based on the Bethe-Salpeter equation in instantaneous approximation. Apart from a phenomenological confinement potential, a residual interaction induced by instantons is adopted. Masses and many decay observab...
1912.01036
Nina Coyle
Nina M. Coyle and Carlos E.M. Wagner
Dynamical Higgs Field Alignment in the NMSSM
Version published in Phys. Rev. D
Phys. Rev. D 101, 055037 (2020)
10.1103/PhysRevD.101.055037
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Experimental probes of the recently discovered Higgs boson show that its behavior is close to that of the Standard Model (SM) Higgs particle. Extensions of the SM which include extra Higgs bosons are constrained by these observations, implying either the decoupling of the heavy non-standard Higgs particles or the rea...
[ { "created": "Mon, 2 Dec 2019 19:04:39 GMT", "version": "v1" }, { "created": "Thu, 2 Apr 2020 05:45:25 GMT", "version": "v2" } ]
2020-04-03
[ [ "Coyle", "Nina M.", "" ], [ "Wagner", "Carlos E. M.", "" ] ]
Experimental probes of the recently discovered Higgs boson show that its behavior is close to that of the Standard Model (SM) Higgs particle. Extensions of the SM which include extra Higgs bosons are constrained by these observations, implying either the decoupling of the heavy non-standard Higgs particles or the reali...
hep-ph/0006133
Petros Draggiotis
Petros D. Draggiotis, Ronald Kleiss
Parton counting: physical and computational complexity of multi-jet production at hadron colliders
18 pages
Eur.Phys.J.C17:437-445,2000
10.1007/s100520000475
null
hep-ph
null
We present an enumeration of all possible amplitudes that contribute to an n-jet process in QCD. We estimate the number of amplitudes for large number of jets and determine the actual number of amplitudes to be calculated, which is smaller due to relabelling among (massless) quark flavours.
[ { "created": "Tue, 13 Jun 2000 13:26:54 GMT", "version": "v1" } ]
2011-09-13
[ [ "Draggiotis", "Petros D.", "" ], [ "Kleiss", "Ronald", "" ] ]
We present an enumeration of all possible amplitudes that contribute to an n-jet process in QCD. We estimate the number of amplitudes for large number of jets and determine the actual number of amplitudes to be calculated, which is smaller due to relabelling among (massless) quark flavours.