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hep-ph/9406380
Kurt Langfeld
K. Langfeld, H. Reinhardt
Scale Anomaly Induced Instanton Interaction
11 LaTex pages (3 figures available on request), in press by Physics Letters B, UNITUE-THEP-4-1994
Phys.Lett. B333 (1994) 396-402
10.1016/0370-2693(94)90159-7
null
hep-ph
null
The binary interaction of large size instantons in a SU(2) Yang-Mills theory is obtained from the one-loop effective action for the field strength. The instanton interaction is calculated as a function of the instanton separation and in dependence on radius and relative orientation of the instantons. Two equally orie...
[ { "created": "Thu, 23 Jun 1994 15:01:09 GMT", "version": "v1" } ]
2009-10-28
[ [ "Langfeld", "K.", "" ], [ "Reinhardt", "H.", "" ] ]
The binary interaction of large size instantons in a SU(2) Yang-Mills theory is obtained from the one-loop effective action for the field strength. The instanton interaction is calculated as a function of the instanton separation and in dependence on radius and relative orientation of the instantons. Two equally orient...
2112.12051
P. S. Bhupal Dev
Ingolf Bischer, P. S. Bhupal Dev, Werner Rodejohann, Xun-Jie Xu, Yongchao Zhang
Searching for new physics from SMEFT and leptoquarks at the P2 experiment
16 pages, 3 figures, 5 tables; published version
Phys. Rev. D 105, 095016 (2022)
10.1103/PhysRevD.105.095016
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
The P2 experiment aims at high-precision measurements of the parity-violating asymmetry in elastic electron-proton and electron-$^{12}$C scatterings with longitudinally polarized electrons. We discuss here the sensitivity of P2 to leptoquarks, which within the P2 energy range can be described in the language of Stand...
[ { "created": "Wed, 22 Dec 2021 17:21:44 GMT", "version": "v1" }, { "created": "Fri, 20 May 2022 16:14:45 GMT", "version": "v2" } ]
2022-05-23
[ [ "Bischer", "Ingolf", "" ], [ "Dev", "P. S. Bhupal", "" ], [ "Rodejohann", "Werner", "" ], [ "Xu", "Xun-Jie", "" ], [ "Zhang", "Yongchao", "" ] ]
The P2 experiment aims at high-precision measurements of the parity-violating asymmetry in elastic electron-proton and electron-$^{12}$C scatterings with longitudinally polarized electrons. We discuss here the sensitivity of P2 to leptoquarks, which within the P2 energy range can be described in the language of Standar...
1907.04665
Ernest Ma
Ernest Ma (UC Riverside)
Two-Loop $Z_4$ Dirac Neutrino Masses and Mixing, with Self-Interacting Dark Matter
15 pages, 2 figures. arXiv admin note: substantial text overlap with arXiv:1905.01535
null
10.1016/j.nuclphysb.2019.114725
UCRHEP-T599 (July 2019)
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Choosing how gauge $U(1)_\chi$ breaks in the context of $SO(10) \to SU(5) \times U(1)_\chi$, $Z_4$ lepton number may be obtained which maintains neutrinos as Dirac fermions. Choosing $\Delta(27)$ as the family symmetry of leptons, tree-level Dirac neutrino masses may be forbidden. Choosing a specific set of self-inte...
[ { "created": "Mon, 8 Jul 2019 18:02:38 GMT", "version": "v1" } ]
2019-10-02
[ [ "Ma", "Ernest", "", "UC Riverside" ] ]
Choosing how gauge $U(1)_\chi$ breaks in the context of $SO(10) \to SU(5) \times U(1)_\chi$, $Z_4$ lepton number may be obtained which maintains neutrinos as Dirac fermions. Choosing $\Delta(27)$ as the family symmetry of leptons, tree-level Dirac neutrino masses may be forbidden. Choosing a specific set of self-intera...
1809.02097
Martin White Dr
The GAMBIT Collaboration: Peter Athron, Csaba Bal\'azs, Andy Buckley, Jonathan M. Cornell, Matthias Danninger, Ben Farmer, Andrew Fowlie, Tom\'as E. Gonzalo, Julia Harz, Paul Jackson, Rose Kudzman-Blais, Anders Kvellestad, Gregory D. Martinez, Andreas Petridis, Are Raklev, Christopher Rogan, Pat Scott, Abhishek...
Combined collider constraints on neutralinos and charginos
38 pages, 16 figures, v3 is the version accepted by EPJC
Eur.Phys.J. C79 (2019) no.5, 395
10.1140/epjc/s10052-019-6837-x
CoEPP-MN-18-7, gambit-physics-2018
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Searches for supersymmetric electroweakinos have entered a crucial phase, as the integrated luminosity of the Large Hadron Collider is now high enough to compensate for their weak production cross-sections. Working in a framework where the neutralinos and charginos are the only light sparticles in the Minimal Supersy...
[ { "created": "Thu, 6 Sep 2018 17:11:57 GMT", "version": "v1" }, { "created": "Fri, 5 Oct 2018 01:59:52 GMT", "version": "v2" }, { "created": "Thu, 20 Jun 2019 22:59:27 GMT", "version": "v3" } ]
2020-08-06
[ [ "The GAMBIT Collaboration", "", "" ], [ "Athron", "Peter", "" ], [ "Balázs", "Csaba", "" ], [ "Buckley", "Andy", "" ], [ "Cornell", "Jonathan M.", "" ], [ "Danninger", "Matthias", "" ], [ "Farmer", "Ben", "...
Searches for supersymmetric electroweakinos have entered a crucial phase, as the integrated luminosity of the Large Hadron Collider is now high enough to compensate for their weak production cross-sections. Working in a framework where the neutralinos and charginos are the only light sparticles in the Minimal Supersymm...
1906.11414
CaiChang Li
Ping-Tao Chen, Gui-Jun Ding, Stephen F. King, Cai-Chang Li
A New Littlest Seesaw Model
29 pages, 5 figures
null
10.1088/1361-6471/ab7e8d
USTC-ICTS-19-15
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose and discuss a new Littlest Seesaw model, realised in the tri-direct CP approach, in which the couplings of the two right-handed neutrinos to the lepton doublets are proportional to $(0,-1,1)$ and $(1,5/2,-1/2)$ respectively with the relative phase $\eta=-\pi/2$. This model can give an excellent description...
[ { "created": "Thu, 27 Jun 2019 02:37:12 GMT", "version": "v1" }, { "created": "Tue, 26 Nov 2019 17:39:37 GMT", "version": "v2" }, { "created": "Mon, 27 Apr 2020 08:25:54 GMT", "version": "v3" } ]
2020-06-24
[ [ "Chen", "Ping-Tao", "" ], [ "Ding", "Gui-Jun", "" ], [ "King", "Stephen F.", "" ], [ "Li", "Cai-Chang", "" ] ]
We propose and discuss a new Littlest Seesaw model, realised in the tri-direct CP approach, in which the couplings of the two right-handed neutrinos to the lepton doublets are proportional to $(0,-1,1)$ and $(1,5/2,-1/2)$ respectively with the relative phase $\eta=-\pi/2$. This model can give an excellent description o...
1412.7196
Alessandro Pilloni
R. Faccini, G. Filaci, A.L. Guerrieri, A. Pilloni, A.D. Polosa
A note on the newly observed Y(4220) resonance
6 pages, 3 figures. Version accepted on Phys.Rev.D
Phys. Rev. D 91, 117501 (2015)
10.1103/PhysRevD.91.117501
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
BES III Collaboration has recently observed a vector resonance in the chi_{c0} omega channel, at a mass of about 4220 MeV, named Y(4220). Hints of a similar structure appear in the h_c pi+ pi- channel. We find that the two observations are likely due to the same state, which we identify with one of the expected diqua...
[ { "created": "Mon, 22 Dec 2014 22:46:26 GMT", "version": "v1" }, { "created": "Fri, 15 May 2015 14:22:37 GMT", "version": "v2" } ]
2015-06-10
[ [ "Faccini", "R.", "" ], [ "Filaci", "G.", "" ], [ "Guerrieri", "A. L.", "" ], [ "Pilloni", "A.", "" ], [ "Polosa", "A. D.", "" ] ]
BES III Collaboration has recently observed a vector resonance in the chi_{c0} omega channel, at a mass of about 4220 MeV, named Y(4220). Hints of a similar structure appear in the h_c pi+ pi- channel. We find that the two observations are likely due to the same state, which we identify with one of the expected diquark...
hep-ph/0002278
Gabriela Miu
G\"osta Gustafson and Gabriela Miu
Minijets and Transverse Energy Flow in High Energy Collisions
1+19 pages, 6 eps-figures, submitted to Physical Review D, text somewhat modified, results unchanged
Phys.Rev. D63 (2001) 034004
10.1103/PhysRevD.63.034004
LU TP 99-43
hep-ph
null
When studying the production of minijets and transverse energy flow in high energy hadron-hadron or nucleus-nucleus collisions, two essential points have to be taken into account. First, one has to account for the virtuality of the colliding partons and secondly, it is important to avoid double counting, when many li...
[ { "created": "Fri, 25 Feb 2000 20:34:25 GMT", "version": "v1" }, { "created": "Thu, 14 Sep 2000 16:13:18 GMT", "version": "v2" } ]
2009-10-31
[ [ "Gustafson", "Gösta", "" ], [ "Miu", "Gabriela", "" ] ]
When studying the production of minijets and transverse energy flow in high energy hadron-hadron or nucleus-nucleus collisions, two essential points have to be taken into account. First, one has to account for the virtuality of the colliding partons and secondly, it is important to avoid double counting, when many link...
hep-ph/0011324
Sancho Moura Oliveira
S. M. Oliveira, L. Bruecher, R. Santos, A. Barroso
Electroweak Corrections to the Top Quark Decay
7 pages, 2 figures
Phys.Rev. D64 (2001) 017301
10.1103/PhysRevD.64.017301
null
hep-ph
null
We have calculated the one-loop electroweak corrections to the decay t-> bW+, including the counterterm for the CKM matrix elements V(tb). Previous calculations used an incorrect delta V(tb) that led to a gauge dependent amplitude. However, since the contribution stemming from delta V(tb) is small, those calculations...
[ { "created": "Mon, 27 Nov 2000 16:52:25 GMT", "version": "v1" }, { "created": "Thu, 18 Jan 2001 15:42:40 GMT", "version": "v2" } ]
2009-10-31
[ [ "Oliveira", "S. M.", "" ], [ "Bruecher", "L.", "" ], [ "Santos", "R.", "" ], [ "Barroso", "A.", "" ] ]
We have calculated the one-loop electroweak corrections to the decay t-> bW+, including the counterterm for the CKM matrix elements V(tb). Previous calculations used an incorrect delta V(tb) that led to a gauge dependent amplitude. However, since the contribution stemming from delta V(tb) is small, those calculations o...
0811.0855
Boyang Liu
Boyang Liu
Muonium-Antimuonium Oscillations in an extended Minimal Supersymmetric Standard Model with right-handed neutrinos
29 pages, 7 figures, 3 tables, Latex
Phys.Rev.D79:015001,2009
10.1103/PhysRevD.79.015001
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The electron and muon number violating muonium-antimuonium oscillation process in an extended Minimal Supersymmetric Standard Model is investigated. The Minimal Supersymmetric Standard Model is modified by the inclusion of three right-handed neutrino superfields. While the model allows the neutrino mass terms to mix ...
[ { "created": "Thu, 6 Nov 2008 01:55:51 GMT", "version": "v1" }, { "created": "Tue, 2 Dec 2008 18:37:38 GMT", "version": "v2" }, { "created": "Wed, 10 Dec 2008 00:27:57 GMT", "version": "v3" } ]
2009-01-16
[ [ "Liu", "Boyang", "" ] ]
The electron and muon number violating muonium-antimuonium oscillation process in an extended Minimal Supersymmetric Standard Model is investigated. The Minimal Supersymmetric Standard Model is modified by the inclusion of three right-handed neutrino superfields. While the model allows the neutrino mass terms to mix am...
0907.2160
Pietro Colangelo
M.V. Carlucci, P. Colangelo and F. De Fazio
Rare $B_s$ decays to $\eta$ and $\eta^\prime$ final states
RevTeX, 10 pages, 4 figures
Phys.Rev.D80:055023,2009
10.1103/PhysRevD.80.055023
BARI-TH/09-611
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study exclusive $B_s$ decays to final states with $\eta$ and $\eta^\prime$, induced by the rare $b \to s \ell^+ \ell^-$ and $b \to s \nu \bar \nu$ transitions. Differential decay rates and total branching fractions are predicted in the Standard Model, adopting the flavour scheme for the description of the $\eta$-$...
[ { "created": "Mon, 13 Jul 2009 16:22:11 GMT", "version": "v1" } ]
2009-11-06
[ [ "Carlucci", "M. V.", "" ], [ "Colangelo", "P.", "" ], [ "De Fazio", "F.", "" ] ]
We study exclusive $B_s$ decays to final states with $\eta$ and $\eta^\prime$, induced by the rare $b \to s \ell^+ \ell^-$ and $b \to s \nu \bar \nu$ transitions. Differential decay rates and total branching fractions are predicted in the Standard Model, adopting the flavour scheme for the description of the $\eta$-$\e...
hep-ph/0211057
Magno Machado
A. Lengyel (IEP, National Academy of Sciences of Ukraine, Uzhgorod), M.V.T. Machado (GFPAE, UFRGS)
The QCD gluon ladders and HERA structure function
10 pages, 3 figures, uses crckapb.sty. To appear in the proceedings of Diffraction 2002: Second International "Cetraro" Workshop and NATO Advanced Research Workshop
null
null
null
hep-ph
null
We report on the extension of the data fitting considering the QCD inspired model based on the summation of gluon ladders applied to the $ep$ scattering. In lines of a two Pomeron approach, the structure function $F_2$ has a hard piece given by the model and the remaining soft contribution: a soft Pomeron and non-sin...
[ { "created": "Tue, 5 Nov 2002 14:16:58 GMT", "version": "v1" } ]
2007-05-23
[ [ "Lengyel", "A.", "", "IEP, National Academy of Sciences of Ukraine, Uzhgorod" ], [ "Machado", "M. V. T.", "", "GFPAE, UFRGS" ] ]
We report on the extension of the data fitting considering the QCD inspired model based on the summation of gluon ladders applied to the $ep$ scattering. In lines of a two Pomeron approach, the structure function $F_2$ has a hard piece given by the model and the remaining soft contribution: a soft Pomeron and non-singl...
2310.13737
Reed Hodges
Marston Copeland, Sean Fleming, Rohit Gupta, Reed Hodges, Thomas Mehen
Polarized $J/\psi$ production in semi-inclusive DIS at large $Q^2$: Comparing quark fragmentation and photon-gluon fusion
22 pages, 7 figures
Phys. Rev. D 109 (2024), 074032
10.1103/PhysRevD.109.074032
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We compare the relative importance of different mechanisms for polarized $J/\psi$ production in semi-inclusive deep inelastic scattering processes at large $Q^2$. The transverse momentum dependent (TMD) factorization framework and nonrelativistic quantum chromodynamics are used to study the leading contributions from...
[ { "created": "Fri, 20 Oct 2023 18:00:02 GMT", "version": "v1" }, { "created": "Mon, 29 Apr 2024 14:23:43 GMT", "version": "v2" } ]
2024-04-30
[ [ "Copeland", "Marston", "" ], [ "Fleming", "Sean", "" ], [ "Gupta", "Rohit", "" ], [ "Hodges", "Reed", "" ], [ "Mehen", "Thomas", "" ] ]
We compare the relative importance of different mechanisms for polarized $J/\psi$ production in semi-inclusive deep inelastic scattering processes at large $Q^2$. The transverse momentum dependent (TMD) factorization framework and nonrelativistic quantum chromodynamics are used to study the leading contributions from l...
1305.0299
Uri Maor
Uri Maor
Unitarity Saturation In P-P Scattering
6 pages, 3 figures. To be published in the LISHEP13 proceedings
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The properties of soft p-p scattering amplitudes at the TeV-scale are studied so as to identify the impact of s and t channel unitarity screenings on their behavior at exceedingly high energies and determine the rate at which they approach the bounds implied by unitarity saturation. I shall examine the relevant high ...
[ { "created": "Wed, 1 May 2013 21:35:22 GMT", "version": "v1" } ]
2013-05-03
[ [ "Maor", "Uri", "" ] ]
The properties of soft p-p scattering amplitudes at the TeV-scale are studied so as to identify the impact of s and t channel unitarity screenings on their behavior at exceedingly high energies and determine the rate at which they approach the bounds implied by unitarity saturation. I shall examine the relevant high en...
hep-ph/0607141
Michal Czakon
R. Boughezal, M. Czakon, T. Schutzmeier
Four-Loop Tadpoles: Applications in QCD
5 pages, 1 figure, to appear in the proceedings of the 8th DESY Workshop on Elementary Particle Theory, Loops and Legs in Quantum Field Theory, April 23-28, 2006, Eisenach, Germany
null
10.1016/j.nuclphysbps.2006.09.041
null
hep-ph
null
Recent applications of single-scale four-loop tadpoles are briefly reviewed. An algorithm for the evaluation of current correlators based on differential equations is described and applied to obtain high moments of the vacuum polarization function at O(alphas^2) as a preparation of O(alphas^3) calculations.
[ { "created": "Wed, 12 Jul 2006 15:55:06 GMT", "version": "v1" } ]
2009-11-11
[ [ "Boughezal", "R.", "" ], [ "Czakon", "M.", "" ], [ "Schutzmeier", "T.", "" ] ]
Recent applications of single-scale four-loop tadpoles are briefly reviewed. An algorithm for the evaluation of current correlators based on differential equations is described and applied to obtain high moments of the vacuum polarization function at O(alphas^2) as a preparation of O(alphas^3) calculations.
1311.1348
Christoph Bobeth
Christoph Bobeth and Martin Gorbahn and Emmanuel Stamou
Electroweak Corrections to $B_{s,d} \to \ell^+ \ell^-$
16 pages, 6 figures, supplementary Mathematica file "c10.m" with analytical results; v2: references updated
Phys. Rev. D 89, 034023 (2014)
10.1103/PhysRevD.89.034023
FLAVOUR(267104)-ERC-54, LTH 991
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the full two-loop electroweak matching corrections to the operator governing the decay B_q --> l^+ l^- in the Standard Model. Their inclusion removes an electroweak scheme and scale uncertainty of about 7% of the branching ratio. Using different renormalization schemes of the involved electroweak paramet...
[ { "created": "Wed, 6 Nov 2013 11:00:29 GMT", "version": "v1" }, { "created": "Tue, 12 Nov 2013 08:45:08 GMT", "version": "v2" } ]
2014-02-26
[ [ "Bobeth", "Christoph", "" ], [ "Gorbahn", "Martin", "" ], [ "Stamou", "Emmanuel", "" ] ]
We calculate the full two-loop electroweak matching corrections to the operator governing the decay B_q --> l^+ l^- in the Standard Model. Their inclusion removes an electroweak scheme and scale uncertainty of about 7% of the branching ratio. Using different renormalization schemes of the involved electroweak parameter...
0811.4133
Zhe Xu
I. Bouras (1), L. Cheng (1,2), A. El (1), O. Fochler (1), J. Uphoff (1), Z. Xu (1), and C. Greiner (1) ((1) Uni. Frankfurt, (2) Huazhong Normal University, Wuhan)
Viscous Effects on Elliptic Flow and Shock Waves
7 pages, 8 figures, to appear in the proceedings of the 2008 Erice School on Nuclear Physics, Sicily
null
10.1016/j.ppnp.2008.12.043
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Fast thermalization and a strong buildup of elliptic flow of QCD matter as found at RHIC are understood as the consequence of perturbative QCD (pQCD) interactions within the 3+1 dimensional parton cascade BAMPS. The main contributions stem from pQCD bremsstrahlung $2 \leftrightarrow 3 $ processes. By comparing to Au+...
[ { "created": "Tue, 25 Nov 2008 17:04:32 GMT", "version": "v1" } ]
2015-05-13
[ [ "Bouras", "I.", "" ], [ "Cheng", "L.", "" ], [ "El", "A.", "" ], [ "Fochler", "O.", "" ], [ "Uphoff", "J.", "" ], [ "Xu", "Z.", "" ], [ "Greiner", "C.", "" ] ]
Fast thermalization and a strong buildup of elliptic flow of QCD matter as found at RHIC are understood as the consequence of perturbative QCD (pQCD) interactions within the 3+1 dimensional parton cascade BAMPS. The main contributions stem from pQCD bremsstrahlung $2 \leftrightarrow 3 $ processes. By comparing to Au+Au...
1601.04537
Piotr Lebiedowicz
Piotr Lebiedowicz, Otto Nachtmann, Antoni Szczurek
Central exclusive diffractive production of $\pi^{+}\pi^{-}$ continuum, scalar and tensor resonances in $pp$ and $p \bar{p}$ scattering within tensor pomeron approach
30 pages, 15 figures
Phys. Rev. D 93, 054015 (2016)
10.1103/PhysRevD.93.054015
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider central exclusive diffractive dipion production in the reactions $pp \to pp \pi^{+} \pi^{-}$ and $p\bar{p} \to p\bar{p} \pi^{+} \pi^{-}$ at high energies. We include the dipion continuum, the dominant scalar $f_{0}(500)$, $f_{0}(980)$, and tensor $f_{2}(1270)$ resonances decaying into the $\pi^{+} \pi^{-}...
[ { "created": "Mon, 18 Jan 2016 14:40:54 GMT", "version": "v1" } ]
2016-03-23
[ [ "Lebiedowicz", "Piotr", "" ], [ "Nachtmann", "Otto", "" ], [ "Szczurek", "Antoni", "" ] ]
We consider central exclusive diffractive dipion production in the reactions $pp \to pp \pi^{+} \pi^{-}$ and $p\bar{p} \to p\bar{p} \pi^{+} \pi^{-}$ at high energies. We include the dipion continuum, the dominant scalar $f_{0}(500)$, $f_{0}(980)$, and tensor $f_{2}(1270)$ resonances decaying into the $\pi^{+} \pi^{-}$ ...
hep-ph/0101210
Mar Bastero
Laura Mersini, Mar Bastero-Gil and Panagiota Kanti
Relic Dark energy from Trans-Planckian Regime
17 pages, 2 eps fig, new references added, final version, to appear in Phys. Rev. D
Phys.Rev. D64 (2001) 043508
10.1103/PhysRevD.64.043508
SNS-PH/01-01
hep-ph astro-ph gr-qc hep-th
null
As yet, there is no underlying fundamental theory for the transplanckian regime. There is a need to address the issue of how the observables in our present universe are affected by processes that may have occured during the transplanckian regime. A particular feature of the family of dispersion functions chosen is th...
[ { "created": "Thu, 18 Jan 2001 22:36:10 GMT", "version": "v1" }, { "created": "Tue, 23 Jan 2001 14:53:38 GMT", "version": "v2" }, { "created": "Wed, 6 Jun 2001 09:27:07 GMT", "version": "v3" } ]
2009-11-07
[ [ "Mersini", "Laura", "" ], [ "Bastero-Gil", "Mar", "" ], [ "Kanti", "Panagiota", "" ] ]
As yet, there is no underlying fundamental theory for the transplanckian regime. There is a need to address the issue of how the observables in our present universe are affected by processes that may have occured during the transplanckian regime. A particular feature of the family of dispersion functions chosen is the ...
hep-ph/0202237
Fabio Maltoni
V. Del Duca, F. Maltoni, Z. Trocsanyi
The contribution of the four-parton final states to gamma* gamma* -> hadrons
32 pages, 10 figures, published version
JHEP 0205 (2002) 005
10.1088/1126-6708/2002/05/005
null
hep-ph
null
In the analysis of the total cross section for the gamma* gamma* -> hadrons process, we include the four parton final states, which are part of the O(alpha_s^2) corrections. The four-parton final states contain the diagrams with gluon exchange in the crossed channel, which constitute the leading order of the BFKL res...
[ { "created": "Mon, 25 Feb 2002 21:12:50 GMT", "version": "v1" }, { "created": "Tue, 21 May 2002 16:45:44 GMT", "version": "v2" } ]
2009-11-07
[ [ "Del Duca", "V.", "" ], [ "Maltoni", "F.", "" ], [ "Trocsanyi", "Z.", "" ] ]
In the analysis of the total cross section for the gamma* gamma* -> hadrons process, we include the four parton final states, which are part of the O(alpha_s^2) corrections. The four-parton final states contain the diagrams with gluon exchange in the crossed channel, which constitute the leading order of the BFKL resum...
1603.06566
Jernej Kamenik
Jernej F. Kamenik, Benjamin R. Safdi, Yotam Soreq and Jure Zupan
Comments on the diphoton excess: critical reappraisal of effective field theory interpretations
31 pages, 8 figures; version as published
null
10.1007/JHEP07(2016)042
MIT-CPT/4786
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the diphoton excess observed by ATLAS and CMS using the most up-to-date data and estimate the preferred enhancement in the production rate between 8 TeV and 13 TeV. Within the framework of effective field theory (EFT), we then show that for both spin-0 and spin-2 Standard Model (SM) gauge-singlet resonanc...
[ { "created": "Mon, 21 Mar 2016 19:58:38 GMT", "version": "v1" }, { "created": "Tue, 12 Jul 2016 07:51:12 GMT", "version": "v2" } ]
2016-08-03
[ [ "Kamenik", "Jernej F.", "" ], [ "Safdi", "Benjamin R.", "" ], [ "Soreq", "Yotam", "" ], [ "Zupan", "Jure", "" ] ]
We consider the diphoton excess observed by ATLAS and CMS using the most up-to-date data and estimate the preferred enhancement in the production rate between 8 TeV and 13 TeV. Within the framework of effective field theory (EFT), we then show that for both spin-0 and spin-2 Standard Model (SM) gauge-singlet resonances...
hep-ph/9808257
Evgene Levin
E.Gotsman (Tel Aviv Un.), E.Levin (Tel Aviv Un./DESY), U. Maor (Tel Aviv Un.) and E.Naftali (Tel Aviv Un.)
The effect of screening on the $x$ and $Q^2$ bhaviour of $F_2$ slopes
26 pages in latex file,9 figure in eps files, Fig. 3 replaced
Nucl.Phys.B539:535-554,1999
10.1016/S0550-3213(98)00740-8
DESY-98-102, TAUP 2515/98
hep-ph
null
A systematic study of $\frac{\partial F_2(x,Q^2)}{\partial \ln Q^2}$ and $\frac{\partial \ln F_2(x,Q^2)}{\partial \ln (1/x)}$ is carried out in pQCD taking screening corrections into account. The result of calculations, which are different from the non screened DGLAP prediction, are compared and shown to agree with t...
[ { "created": "Fri, 7 Aug 1998 10:23:52 GMT", "version": "v1" }, { "created": "Fri, 14 Aug 1998 10:14:37 GMT", "version": "v2" }, { "created": "Sun, 16 Aug 1998 13:33:58 GMT", "version": "v3" } ]
2014-11-17
[ [ "Gotsman", "E.", "", "Tel Aviv Un." ], [ "Levin", "E.", "", "Tel Aviv Un./DESY" ], [ "Maor", "U.", "", "Tel\n Aviv Un." ], [ "Naftali", "E.", "", "Tel Aviv Un." ] ]
A systematic study of $\frac{\partial F_2(x,Q^2)}{\partial \ln Q^2}$ and $\frac{\partial \ln F_2(x,Q^2)}{\partial \ln (1/x)}$ is carried out in pQCD taking screening corrections into account. The result of calculations, which are different from the non screened DGLAP prediction, are compared and shown to agree with the...
hep-ph/9709365
Omar Miranda
J. W. F. Valle (U. Valencia-Ific/Csic)
Neutrinos Properties Beyond the Standard Model
14 pages. Latex. 12 figures. Plenary talk, WIN97, Capri, Italy, June 1997. Minor changes, references and acknowledgements added
Phys.Atom.Nucl.61:1012-1023,1998; Nucl.Phys.Proc.Suppl.66:141-154,1998
10.1016/S0920-5632(98)00027-9
FTUV/97-54, IFIC/97-70
hep-ph
null
The present observational status of neutrino physics is sketched, with emphasis on the hints that follow from solar and atmospheric neutrino observations, as well as dark matter. I also briefly review the ways to account for the observed anomalies and some of their implications
[ { "created": "Tue, 16 Sep 1997 17:04:57 GMT", "version": "v1" }, { "created": "Fri, 26 Sep 1997 18:10:39 GMT", "version": "v2" } ]
2009-09-17
[ [ "Valle", "J. W. F.", "", "U. Valencia-Ific/Csic" ] ]
The present observational status of neutrino physics is sketched, with emphasis on the hints that follow from solar and atmospheric neutrino observations, as well as dark matter. I also briefly review the ways to account for the observed anomalies and some of their implications
hep-ph/9912266
Panagiota Kanti
P. Kanti, I.I. Kogan, K.A. Olive and M. Pospelov
Single-Brane Cosmological Solutions with a Stable Compact Extra Dimension
25 pages, Latex file, no figures, comments added, references updated, final version to appear in Physical Review D
Phys.Rev.D61:106004,2000
10.1103/PhysRevD.61.106004
UMN-TH-1829/99, TPI-MINN-99/54, OUTP-99-62P
hep-ph astro-ph gr-qc hep-th
null
We consider 5-dimensional cosmological solutions of a single brane. The correct cosmology on the brane, i.e., governed by the standard 4-dimensional Friedmann equation, and stable compactification of the extra dimension is guaranteed by the existence of a non-vanishing \hat{T}^5_5 which is proportional to the 4-dimen...
[ { "created": "Wed, 8 Dec 1999 00:04:02 GMT", "version": "v1" }, { "created": "Tue, 29 Feb 2000 15:54:02 GMT", "version": "v2" } ]
2009-09-15
[ [ "Kanti", "P.", "" ], [ "Kogan", "I. I.", "" ], [ "Olive", "K. A.", "" ], [ "Pospelov", "M.", "" ] ]
We consider 5-dimensional cosmological solutions of a single brane. The correct cosmology on the brane, i.e., governed by the standard 4-dimensional Friedmann equation, and stable compactification of the extra dimension is guaranteed by the existence of a non-vanishing \hat{T}^5_5 which is proportional to the 4-dimensi...
hep-ph/9712530
Koichi Yoshioka
M. Bando, J. Sato and K. Yoshioka
Quark and Lepton Mass Matrix in an Asymptotically Non-Free Theory
22 pages, 6 eps figures, typos corrected, version to be published
Prog.Theor.Phys.100:797-815,1998
10.1143/PTP.100.797
UT-801, KUNS-1479
hep-ph
null
We analyze fermion mass-matrix structure in an asymptotically non-free model with 4 + 1bar generations. The texture at the GUT scale is uniquely determined by supposing that the masses of heavy up-type quarks (charm as well as top) are realized as their infrared fixed point values. By assuming SO(10) GUT-like relatio...
[ { "created": "Sun, 28 Dec 1997 16:11:19 GMT", "version": "v1" }, { "created": "Tue, 20 Jan 1998 12:18:00 GMT", "version": "v2" }, { "created": "Sun, 20 Sep 1998 11:48:18 GMT", "version": "v3" } ]
2014-11-17
[ [ "Bando", "M.", "" ], [ "Sato", "J.", "" ], [ "Yoshioka", "K.", "" ] ]
We analyze fermion mass-matrix structure in an asymptotically non-free model with 4 + 1bar generations. The texture at the GUT scale is uniquely determined by supposing that the masses of heavy up-type quarks (charm as well as top) are realized as their infrared fixed point values. By assuming SO(10) GUT-like relations...
hep-ph/0006348
Steven D. Bass
Steven D. Bass
Proton spin structure and the low-energy pp -> pp eta' reaction
2 pages, LaTeX, talk at DIS 2000, Liverpool, April 2000
null
null
TUM/T39-00-08
hep-ph
null
Gluonic degrees of freedom induce a contact term in the effective chiral Lagrangian description of the low-energy pp -> pp eta' reaction. The strength of this contact term is, in part, related to the amount of spin carried by polarised gluons in a polarised proton.
[ { "created": "Fri, 30 Jun 2000 14:15:42 GMT", "version": "v1" } ]
2007-05-23
[ [ "Bass", "Steven D.", "" ] ]
Gluonic degrees of freedom induce a contact term in the effective chiral Lagrangian description of the low-energy pp -> pp eta' reaction. The strength of this contact term is, in part, related to the amount of spin carried by polarised gluons in a polarised proton.
1304.7888
Debtosh Chowdhury
Debtosh Chowdhury, Ketan M. Patel
Revisiting lepton flavor violation in supersymmetric type II seesaw
Minor changes in text; accepted for publication in Phys. Rev. D
Phys. Rev. D87 (2013) 095018
10.1103/PhysRevD.87.095018
TIFR/TH/13-12
hep-ph
http://creativecommons.org/licenses/publicdomain/
In view of the recent measurement of reactor mixing angle $\theta_{13}$ and updated limit on $BR(\mu \to e \gamma)$ by the MEG experiment, we re-examine the charged lepton flavor violations in a framework of supersymmetric type II seesaw mechanism. Supersymmetric type II seesaw predicts strong correlation between $BR...
[ { "created": "Tue, 30 Apr 2013 05:57:48 GMT", "version": "v1" }, { "created": "Thu, 23 May 2013 01:26:43 GMT", "version": "v2" } ]
2013-08-05
[ [ "Chowdhury", "Debtosh", "" ], [ "Patel", "Ketan M.", "" ] ]
In view of the recent measurement of reactor mixing angle $\theta_{13}$ and updated limit on $BR(\mu \to e \gamma)$ by the MEG experiment, we re-examine the charged lepton flavor violations in a framework of supersymmetric type II seesaw mechanism. Supersymmetric type II seesaw predicts strong correlation between $BR(\...
hep-ph/9802439
null
Stefano Catani (CERN)
The Singular Behaviour of QCD Amplitudes at Two-loop Order
14 pages, latex, no figures
Phys.Lett. B427 (1998) 161-171
10.1016/S0370-2693(98)00332-3
CERN-TH/98-42
hep-ph
null
We discuss the structure of infrared singularities in on-shell QCD amplitudes at two-loop order. We present a general factorization formula that controls all the $\ep$-poles of the dimensionally regularized amplitudes. The dependence on the regularization scheme is considered and the coefficients of the $1/\ep^4, 1/\...
[ { "created": "Thu, 26 Feb 1998 19:15:08 GMT", "version": "v1" } ]
2009-10-31
[ [ "Catani", "Stefano", "", "CERN" ] ]
We discuss the structure of infrared singularities in on-shell QCD amplitudes at two-loop order. We present a general factorization formula that controls all the $\ep$-poles of the dimensionally regularized amplitudes. The dependence on the regularization scheme is considered and the coefficients of the $1/\ep^4, 1/\ep...
1009.4588
Francesco Giacosa
Francesco Giacosa
Analytical study of a gas of gluonic quasiparticles at high temperature: effective mass, pressure and trace anomaly
Revised version accepted for publication in Phys. Rev. D. 10 pages and 3 figures
Phys.Rev.D83:114002,2011
10.1103/PhysRevD.83.114002
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The thermodynamical properties of a pure Yang-Mills theory SU(N) is described by a gas of gluonic quasiparticles with temperature dependent mass $m(T)$ and a bag function $B(T).$ The analytic behavior of $m(T)$ and the pressure $p$ at high $T$ are derived and constraints on the parameters defining $B(T)$ are discusse...
[ { "created": "Thu, 23 Sep 2010 11:54:27 GMT", "version": "v1" }, { "created": "Tue, 17 May 2011 15:51:39 GMT", "version": "v2" } ]
2011-06-13
[ [ "Giacosa", "Francesco", "" ] ]
The thermodynamical properties of a pure Yang-Mills theory SU(N) is described by a gas of gluonic quasiparticles with temperature dependent mass $m(T)$ and a bag function $B(T).$ The analytic behavior of $m(T)$ and the pressure $p$ at high $T$ are derived and constraints on the parameters defining $B(T)$ are discussed....
2003.04828
John Terry
Daniel Callos, Zhong-Bo Kang, John Terry
Extracting the Transverse Momentum Dependent Polarizing Fragmentation Functions
9 pages, 7 figures, updated fit and improved text
Phys. Rev. D 102, 096007 (2020)
10.1103/PhysRevD.102.096007
null
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We demonstrate that spontaneous transverse polarization of Lambda baryon ($\Lambda$) production in $e^+e^-$ annihilation can be described using the transverse momentum dependent polarizing fragmentation functions (TMD PFFs). Using a simple Gaussian model, we perform an extraction of the TMD PFFs by fitting the BELLE ...
[ { "created": "Tue, 10 Mar 2020 16:18:45 GMT", "version": "v1" }, { "created": "Fri, 27 Mar 2020 06:15:20 GMT", "version": "v2" } ]
2020-11-18
[ [ "Callos", "Daniel", "" ], [ "Kang", "Zhong-Bo", "" ], [ "Terry", "John", "" ] ]
We demonstrate that spontaneous transverse polarization of Lambda baryon ($\Lambda$) production in $e^+e^-$ annihilation can be described using the transverse momentum dependent polarizing fragmentation functions (TMD PFFs). Using a simple Gaussian model, we perform an extraction of the TMD PFFs by fitting the BELLE co...
2106.06393
Petr Satunin
Petr Satunin
Two-sided constraints on Lorentz Invariance violation from Tibet-AS$\gamma$ and LHAASO Very-High-Energy photon observations
11 pages, 2 figures, 1 table. v2: the effect of pair production on CMB has been added
Eur. Phys. J. C 81, 750 (2021)
10.1140/epjc/s10052-021-09547-1
INR-TH-2021-014
hep-ph astro-ph.HE
http://creativecommons.org/licenses/by/4.0/
We present new two-sided constraints on Lorentz Invariance violation energy scale for photons with quartic dispersion relation from recent gamma ray observations by Tibet-AS$\gamma$ and LHAASO experiments. The constraints are based on the consideration of the processes of photon triple splitting (superluminal scenari...
[ { "created": "Fri, 11 Jun 2021 13:52:33 GMT", "version": "v1" }, { "created": "Thu, 1 Jul 2021 09:12:10 GMT", "version": "v2" }, { "created": "Mon, 2 Aug 2021 07:39:30 GMT", "version": "v3" } ]
2021-08-26
[ [ "Satunin", "Petr", "" ] ]
We present new two-sided constraints on Lorentz Invariance violation energy scale for photons with quartic dispersion relation from recent gamma ray observations by Tibet-AS$\gamma$ and LHAASO experiments. The constraints are based on the consideration of the processes of photon triple splitting (superluminal scenario)...
1104.4225
Arkadii Kozhevnikov
N.N. Achasov, A.A. Kozhevnikov
Electromagnetic form factor of pion in the field theory inspired approach
12 pages, 8 figures. Text rearranged. Clarifying remarks and references added
Phys.Rev.D83:113005,2011
10.1103/PhysRevD.83.113005
null
hep-ph hep-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A new formula for the pion form factor F_pi is proposed which takes into account the pseudoscalar meson loops and the mixing among rho(770), rho(1450), and rho(1700). The expression possesses correct analytical properties and can be used in both timelike and spacelike kinematical regions. The comparison is made with ...
[ { "created": "Thu, 21 Apr 2011 10:38:07 GMT", "version": "v1" }, { "created": "Mon, 20 Jun 2011 05:34:13 GMT", "version": "v2" } ]
2011-06-30
[ [ "Achasov", "N. N.", "" ], [ "Kozhevnikov", "A. A.", "" ] ]
A new formula for the pion form factor F_pi is proposed which takes into account the pseudoscalar meson loops and the mixing among rho(770), rho(1450), and rho(1700). The expression possesses correct analytical properties and can be used in both timelike and spacelike kinematical regions. The comparison is made with th...
2105.09044
Kousik Loho
Tanushree Basak, Baradhwaj Coleppa, Kousik Loho
An update on the two singlet Dark Matter model
14 pages, 9 figures
null
10.1007/JHEP06(2021)104
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We revisit the two real singlet extension of the Standard Model with a $Z_2\times Z_2^\prime$ symmetry. One of the singlet scalars $S_2$, by virtue of an unbroken $Z_2^\prime$ symmetry, plays the role of a stable dark matter candidate. The other scalar $S_1$, with spontaneously broken $Z_2$-symmetry, mixes with the S...
[ { "created": "Wed, 19 May 2021 10:23:29 GMT", "version": "v1" }, { "created": "Fri, 18 Jun 2021 05:11:37 GMT", "version": "v2" } ]
2021-06-21
[ [ "Basak", "Tanushree", "" ], [ "Coleppa", "Baradhwaj", "" ], [ "Loho", "Kousik", "" ] ]
We revisit the two real singlet extension of the Standard Model with a $Z_2\times Z_2^\prime$ symmetry. One of the singlet scalars $S_2$, by virtue of an unbroken $Z_2^\prime$ symmetry, plays the role of a stable dark matter candidate. The other scalar $S_1$, with spontaneously broken $Z_2$-symmetry, mixes with the SM ...
hep-ph/0210031
Luca Silvestrini
L.Silvestrini
B Physics and Supersymmetry
5 pages, uses espcrc2.sty. Contributed talk at ICHEP02
null
10.1016/S0920-5632(03)90677-3
null
hep-ph
null
In this talk, I briefly review a selection of SUSY effects in B physics. First, I consider models with Minimal Flavour Violation. Then I discuss SUSY models with new sources of flavour violation in squark mass matrices, analyzing present constraints and possible developments with forthcoming data on b -> s and b -> d...
[ { "created": "Wed, 2 Oct 2002 10:53:41 GMT", "version": "v1" } ]
2009-11-07
[ [ "Silvestrini", "L.", "" ] ]
In this talk, I briefly review a selection of SUSY effects in B physics. First, I consider models with Minimal Flavour Violation. Then I discuss SUSY models with new sources of flavour violation in squark mass matrices, analyzing present constraints and possible developments with forthcoming data on b -> s and b -> d t...
1309.3462
Dorota Sokolowska
Dorota Sokolowska
Dark Matter and 125 GeV Higgs for IDM
4 pages, 3 figures, Proceeding of 25th Rencontres de Blois, May 26-31, 2013
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss a scalar Dark Matter candidate from the Inert Doublet Model in light of discovery of a 125 GeV SM-like Higgs boson at the LHC. We explore the possibility of using the recent and future data from LHC experiments, namely the Higgs diphoton decay measurements, to constrain the properties of Dark Matter partic...
[ { "created": "Fri, 13 Sep 2013 14:16:32 GMT", "version": "v1" } ]
2013-09-16
[ [ "Sokolowska", "Dorota", "" ] ]
We discuss a scalar Dark Matter candidate from the Inert Doublet Model in light of discovery of a 125 GeV SM-like Higgs boson at the LHC. We explore the possibility of using the recent and future data from LHC experiments, namely the Higgs diphoton decay measurements, to constrain the properties of Dark Matter particle...
hep-ph/9609309
Richard Ball
R.D. Ball and A. De Roeck
Structure Functions
25 pages, LaTeX with sprocl.sty, 14 figures in postscript. Summary Talk of WG1 at DIS96
null
null
DESY 96-185, Edinburgh 96/24.
hep-ph hep-ex
null
We summarize recent developments in the understanding of nucleon structure. New data on F2, R and F2c, over a wide range of Q2 and x, are described. Conventional leading twist NLO perturbative QCD gives an excellent account of all the new data with Q2 above a GeV, leaving very little room for either higher twists or ...
[ { "created": "Tue, 10 Sep 1996 16:54:54 GMT", "version": "v1" } ]
2007-05-23
[ [ "Ball", "R. D.", "" ], [ "De Roeck", "A.", "" ] ]
We summarize recent developments in the understanding of nucleon structure. New data on F2, R and F2c, over a wide range of Q2 and x, are described. Conventional leading twist NLO perturbative QCD gives an excellent account of all the new data with Q2 above a GeV, leaving very little room for either higher twists or hi...
2305.01449
Alessandro Pilloni
JPAC Collaboration: D. Winney, C. Fernandez-Ramirez, A. Pilloni, A. N. Hiller Blin, M. Albaladejo, L. Bibrzycki, N. Hammoud, J. Liao, V. Mathieu, G. Montana, R. J. Perry, V. Shastry, W. A. Smith, A. P. Szczepaniak
Dynamics in near-threshold $J/\psi$ photoproduction
15 pages, 7 figures, 2 tables. Version to appear on Phys. Rev. D
Phys. Rev. D 108 (2023) 5, 054018
null
JLAB-THY-23-3802
hep-ph hep-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The study of $J/\psi$ photoproduction at low energies has consequences for the understanding of multiple aspects of nonperturbative QCD, ranging from mechanical properties of the proton, to the binding inside nuclei, and the existence of hidden-charm pentaquarks. Factorization of the photon-$c \bar c$ and nucleon dyn...
[ { "created": "Tue, 2 May 2023 14:29:06 GMT", "version": "v1" }, { "created": "Wed, 13 Sep 2023 15:58:57 GMT", "version": "v2" } ]
2023-09-14
[ [ "JPAC Collaboration", "", "" ], [ "Winney", "D.", "" ], [ "Fernandez-Ramirez", "C.", "" ], [ "Pilloni", "A.", "" ], [ "Blin", "A. N. Hiller", "" ], [ "Albaladejo", "M.", "" ], [ "Bibrzycki", "L.", "" ], ...
The study of $J/\psi$ photoproduction at low energies has consequences for the understanding of multiple aspects of nonperturbative QCD, ranging from mechanical properties of the proton, to the binding inside nuclei, and the existence of hidden-charm pentaquarks. Factorization of the photon-$c \bar c$ and nucleon dynam...
1207.4926
Grigory Kirilin
Martin Beneke, Grisha Kirilin
Soft-collinear gravity
16 pages, 2 figures
null
10.1007/JHEP09(2012)066
TUM-HEP-848/12; TTK-12-31
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study collinear and soft singularities in perturbative quantum gravity by constructing an effective field theory similar to soft-collinear effective theory for QCD (SCET). We find that the soft sector exhibits factorization properties similar to those of SCET. The collinear sector is, however, quite different. Whi...
[ { "created": "Fri, 20 Jul 2012 11:54:49 GMT", "version": "v1" } ]
2015-06-05
[ [ "Beneke", "Martin", "" ], [ "Kirilin", "Grisha", "" ] ]
We study collinear and soft singularities in perturbative quantum gravity by constructing an effective field theory similar to soft-collinear effective theory for QCD (SCET). We find that the soft sector exhibits factorization properties similar to those of SCET. The collinear sector is, however, quite different. While...
0705.1330
Pedro David Ruiz-Femenia
Pedro D. Ruiz-Femenia
The soft-energy region in the radiative decay of bound states
28 pages, 5 figures; typos corrected, one reference added, published version
Nucl.Phys.B788:21-46,2008
10.1016/j.nuclphysb.2007.07.013
MPP-2007-46
hep-ph
null
The orthopositronium decay to three photons is studied in the phase-space region where one of the photons has an energy comparable to the relative three-momentum of the e+e- system (w ~ m alpha). The NRQED computation in this regime shows that the dominant contribution arises from distances ~ 1/(mw)^(1/2), which allo...
[ { "created": "Wed, 9 May 2007 19:10:53 GMT", "version": "v1" }, { "created": "Thu, 20 Sep 2007 17:01:24 GMT", "version": "v2" } ]
2008-11-26
[ [ "Ruiz-Femenia", "Pedro D.", "" ] ]
The orthopositronium decay to three photons is studied in the phase-space region where one of the photons has an energy comparable to the relative three-momentum of the e+e- system (w ~ m alpha). The NRQED computation in this regime shows that the dominant contribution arises from distances ~ 1/(mw)^(1/2), which allows...
hep-ph/9307348
Raju
Raju Venugopalan and Axel Vischer
Dynamical Growth Rate of a Diffuse Interface in First Order Phase Transitions
LaTex, 9 pages, TPI-MINN-93-34/T, NUC-MINN-93-17/T
Phys.Rev. E49 (2004) 5849
10.1103/PhysRevE.49.5849
null
hep-ph cond-mat nucl-th
null
We compute the dynamical prefactor in the nucleation rate of bubbles or droplets in first order phase transitions for the case where both viscous damping and thermal dissipation are significant. This result, which generalizes previous work on nucleation, may be applied to study the growth of bubbles or droplets in co...
[ { "created": "Tue, 27 Jul 1993 19:57:06 GMT", "version": "v1" } ]
2009-10-22
[ [ "Venugopalan", "Raju", "" ], [ "Vischer", "Axel", "" ] ]
We compute the dynamical prefactor in the nucleation rate of bubbles or droplets in first order phase transitions for the case where both viscous damping and thermal dissipation are significant. This result, which generalizes previous work on nucleation, may be applied to study the growth of bubbles or droplets in cond...
hep-ph/0102004
James Letts
J. Letts and P. Mattig
Direct Determination of the CKM Matrix from Decays of W Bosons and Top Quarks at High Energy e+e- Colliders
28 pages, 4 figures; Submitted to Eur. Phys. J. C
Eur.Phys.J.C21:211-223,2001
10.1007/s100520100722
LC-PHSM-2001-008
hep-ph
null
At proposed high energy linear e+e- colliders a large number of W bosons and top quarks will be produced. We evaluate the potential precision to which the decay branching ratios into the various quark species can be measured, implying also the determination of the respective CKM matrix elements. Crucial is the identi...
[ { "created": "Thu, 1 Feb 2001 14:15:46 GMT", "version": "v1" } ]
2008-11-26
[ [ "Letts", "J.", "" ], [ "Mattig", "P.", "" ] ]
At proposed high energy linear e+e- colliders a large number of W bosons and top quarks will be produced. We evaluate the potential precision to which the decay branching ratios into the various quark species can be measured, implying also the determination of the respective CKM matrix elements. Crucial is the identifi...
1401.5586
Dong-Won Jung
Dong-Won Jung, P. Ko
Higgs-dilaton(radion) system confronting the LHC Higgs data
Minor corrections, including a few new figures, version appearing in Physics Letters B
null
10.1016/j.physletb.2014.04.005
KIAS-P13004
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the Higgs-dilaton(radion) system using the trace of energy-momentum tensor ($T_{~\mu}^\mu$) with the full Standard Model (SM) gauge symmetry $G_{\rm SM} \equiv SU(3)_c \times SU(2)_L \times U(1)_Y$, and find out that the resulting phenomenology for the Higgs-dilaton(radion) system is distinctly different ...
[ { "created": "Wed, 22 Jan 2014 08:42:01 GMT", "version": "v1" }, { "created": "Tue, 4 Feb 2014 14:11:32 GMT", "version": "v2" }, { "created": "Mon, 21 Apr 2014 07:10:34 GMT", "version": "v3" } ]
2015-06-18
[ [ "Jung", "Dong-Won", "" ], [ "Ko", "P.", "" ] ]
We consider the Higgs-dilaton(radion) system using the trace of energy-momentum tensor ($T_{~\mu}^\mu$) with the full Standard Model (SM) gauge symmetry $G_{\rm SM} \equiv SU(3)_c \times SU(2)_L \times U(1)_Y$, and find out that the resulting phenomenology for the Higgs-dilaton(radion) system is distinctly different fr...
1107.3529
Kang Zhao-Feng
Xin Gao, Zhaofeng Kang, Tianjun Li
Origins of the Isospin Violation of Dark Matter Interactions
References added and English greatly improved
null
10.1088/1475-7516/2013/01/021
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Light dark matter (DM) with a large DM-nucleon spin-independent cross section and furthermore proper isospin violation (ISV) $f_n/f_p\approx-0.7$ may provide a way to understand the confusing DM direct detection results. Combing with the stringent astrophysical and collider constraints, we systematically investigate ...
[ { "created": "Mon, 18 Jul 2011 19:13:02 GMT", "version": "v1" }, { "created": "Tue, 6 Nov 2012 19:10:42 GMT", "version": "v2" } ]
2015-05-28
[ [ "Gao", "Xin", "" ], [ "Kang", "Zhaofeng", "" ], [ "Li", "Tianjun", "" ] ]
Light dark matter (DM) with a large DM-nucleon spin-independent cross section and furthermore proper isospin violation (ISV) $f_n/f_p\approx-0.7$ may provide a way to understand the confusing DM direct detection results. Combing with the stringent astrophysical and collider constraints, we systematically investigate th...
1302.6215
Christian Bogner
Christian Bogner and Martin L\"uders
Multiple polylogarithms and linearly reducible Feynman graphs
17 pages, to appear in the proceedings of the workshop "Periods and Motives", Madrid, July 2012
null
null
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We review an approach for the computation of Feynman integrals by use of multiple polylogarithms, with an emphasis on the related criterion of linear reducibility of the graph. We show that the set of graphs which satisfies the linear reducibility with respect to both Symanzik polynomials is closed under taking minor...
[ { "created": "Mon, 25 Feb 2013 20:19:27 GMT", "version": "v1" } ]
2013-02-26
[ [ "Bogner", "Christian", "" ], [ "Lüders", "Martin", "" ] ]
We review an approach for the computation of Feynman integrals by use of multiple polylogarithms, with an emphasis on the related criterion of linear reducibility of the graph. We show that the set of graphs which satisfies the linear reducibility with respect to both Symanzik polynomials is closed under taking minors....
1206.5047
Jackson Wu
We-Fu Chang, John N. Ng, Jackson M. S. Wu
Constraints on New Scalars from the LHC 125 GeV Higgs Signal
23 pages, 8 figures; references addded, typos corrected. Published in PRD
null
10.1103/PhysRevD.86.033003
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the implications the recent results from the LHC Higgs searches have on scalar new physics. We study the impact on both the Higgs production and decay from scalars with and without colour, and in cases where decoupling do and do not happen. We investigate possible constraints on scalar parameters from the pr...
[ { "created": "Fri, 22 Jun 2012 03:37:49 GMT", "version": "v1" }, { "created": "Tue, 7 Aug 2012 02:46:27 GMT", "version": "v2" } ]
2013-05-30
[ [ "Chang", "We-Fu", "" ], [ "Ng", "John N.", "" ], [ "Wu", "Jackson M. S.", "" ] ]
We study the implications the recent results from the LHC Higgs searches have on scalar new physics. We study the impact on both the Higgs production and decay from scalars with and without colour, and in cases where decoupling do and do not happen. We investigate possible constraints on scalar parameters from the prod...
1406.6965
Cem Salih Un
K. S. Babu, Ilia Gogoladze, Qaisar Shafi and Cem Salih Un
Muon g-2, 125 GeV Higgs and Neutralino Dark Matter in sMSSM
null
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the sparticle (and Higgs) spectrum in a class of flavor symmetry-based minimal supersymmetric standard models, referred to here as sMSSM. In this framework the SUSY breaking Lagrangian takes the most general form consistent with a grand unified symmetry such as SO(10) and a non-Abelian flavor symmetry acti...
[ { "created": "Thu, 26 Jun 2014 18:10:50 GMT", "version": "v1" } ]
2014-06-27
[ [ "Babu", "K. S.", "" ], [ "Gogoladze", "Ilia", "" ], [ "Shafi", "Qaisar", "" ], [ "Un", "Cem Salih", "" ] ]
We discuss the sparticle (and Higgs) spectrum in a class of flavor symmetry-based minimal supersymmetric standard models, referred to here as sMSSM. In this framework the SUSY breaking Lagrangian takes the most general form consistent with a grand unified symmetry such as SO(10) and a non-Abelian flavor symmetry acting...
hep-ph/9404332
Boucaud
V. N. Gribov
Orsay lectures on confinement (II)
LPTHE 94-20, 13 pages with 4 figures in PostScript; uses plain TeX with epsf.tex (included)
null
null
null
hep-ph
null
The behaviour of the light quark vacuum in the presence of a heavy quark is investigated.
[ { "created": "Mon, 25 Apr 1994 14:59:49 GMT", "version": "v1" } ]
2007-05-23
[ [ "Gribov", "V. N.", "" ] ]
The behaviour of the light quark vacuum in the presence of a heavy quark is investigated.
hep-ph/0411173
Pedro Fernando Simoes Costa
Pedro Costa, M. C. Ruivo, Yu. L. Kalinovsky
Two photon decay of $\pi^0$ and $\eta$ at finite temperature and density
5 pages, 1 figure. Talk given at Strange Quark Matter 2004, Cape Town, South Africa, 15-20 September, 2004
J.Phys. G31 (2005) S1171-S1174
10.1088/0954-3899/31/6/080
null
hep-ph
null
A comparative study of the anomalous decays $\pi^0, \eta \to\gamma\gamma$, at finite temperature and at finite density, is performed in the framework of the three--flavor Nambu--Jona-Lasinio. The similarities and differences between both scenarios are discussed. In both cases the lifetimes of these mesons decrease si...
[ { "created": "Fri, 12 Nov 2004 16:35:04 GMT", "version": "v1" } ]
2007-05-23
[ [ "Costa", "Pedro", "" ], [ "Ruivo", "M. C.", "" ], [ "Kalinovsky", "Yu. L.", "" ] ]
A comparative study of the anomalous decays $\pi^0, \eta \to\gamma\gamma$, at finite temperature and at finite density, is performed in the framework of the three--flavor Nambu--Jona-Lasinio. The similarities and differences between both scenarios are discussed. In both cases the lifetimes of these mesons decrease sign...
hep-ph/9804412
Seiichi Wakaizumi
T. Hattori(Univ. Tokushima), T. Hasuike(Anan Col. Technology), S. Wakaizumi(Univ. Tokushima)
K^+\to\pi^+\nu\bar{\nu} with four generations and its effects on unitarity triangle
14 pages written in LaTex, 2 figures available upon request
null
null
TOKUSHIMA 98-01
hep-ph
null
We analyze in the four-generation model the first measurement of the branching ratio of rare kaon decay K^+\to\pi^+\nu\bar{\nu}, using the constraints from \Delta m_K, \epsilon_K, B_d-\bar{B_d} mixing, \Gamma (b\to s\gamma), B_s-\bar{B_s} mixing, D^0-\bar{D^0} mixing, B(K_L\to\pi^0\nu\bar{\nu}) and B(K_L\to\mu\bar{\m...
[ { "created": "Mon, 27 Apr 1998 09:29:56 GMT", "version": "v1" } ]
2009-09-25
[ [ "Hattori", "T.", "", "Univ. Tokushima" ], [ "Hasuike", "T.", "", "Anan Col. Technology" ], [ "Wakaizumi", "S.", "", "Univ. Tokushima" ] ]
We analyze in the four-generation model the first measurement of the branching ratio of rare kaon decay K^+\to\pi^+\nu\bar{\nu}, using the constraints from \Delta m_K, \epsilon_K, B_d-\bar{B_d} mixing, \Gamma (b\to s\gamma), B_s-\bar{B_s} mixing, D^0-\bar{D^0} mixing, B(K_L\to\pi^0\nu\bar{\nu}) and B(K_L\to\mu\bar{\mu}...
hep-ph/0504015
Sergio Palomares-Ruiz
Olga Mena Requejo (Fermilab), Sergio Palomares-Ruiz (Vanderbilt U.) and Silvia Pascoli (CERN)
Super-NOvA: a long-baseline neutrino experiment with two off-axis detectors
17 pp and 7 figs
Phys.Rev.D72:053002,2005
10.1103/PhysRevD.72.053002
CERN-PH-TH/2005-050, FERMILAB-PUB-05-050-T
hep-ph
null
Establishing the neutrino mass hierarchy is one of the fundamental questions that will have to be addressed in the next future. Its determination could be obtained with long-baseline experiments but typically suffers from degeneracies with other neutrino parameters. We consider here the NOvA experiment configuration ...
[ { "created": "Sun, 3 Apr 2005 22:44:49 GMT", "version": "v1" } ]
2008-11-26
[ [ "Requejo", "Olga Mena", "", "Fermilab" ], [ "Palomares-Ruiz", "Sergio", "", "Vanderbilt U." ], [ "Pascoli", "Silvia", "", "CERN" ] ]
Establishing the neutrino mass hierarchy is one of the fundamental questions that will have to be addressed in the next future. Its determination could be obtained with long-baseline experiments but typically suffers from degeneracies with other neutrino parameters. We consider here the NOvA experiment configuration an...
hep-ph/0303004
Narison
Stephan Narison (LPMT-CNRS-Montpellier-FR)
Scalar mesons and the muon anomaly
Latex file, 5 pages, 2 tables, 1 eps figure. Version to appear in Phys. Lett. B. Separation of the pure theoretical based and experimental PDG based estimates of a_mu^SM
Phys.Lett. B568 (2003) 231-236
10.1016/j.physletb.2003.06.058
null
hep-ph astro-ph hep-ex hep-th
null
We evaluate systematically some new contributions of the QCD scalar mesons, including radiative decay-productions, not considered with a better attention until now in the evaluation of the hadronic contributions to the muon anomaly. The sum of the scalar contributions to be added to the existing Standard Model predic...
[ { "created": "Sun, 2 Mar 2003 14:57:11 GMT", "version": "v1" }, { "created": "Sun, 29 Jun 2003 07:29:15 GMT", "version": "v2" } ]
2009-11-10
[ [ "Narison", "Stephan", "", "LPMT-CNRS-Montpellier-FR" ] ]
We evaluate systematically some new contributions of the QCD scalar mesons, including radiative decay-productions, not considered with a better attention until now in the evaluation of the hadronic contributions to the muon anomaly. The sum of the scalar contributions to be added to the existing Standard Model predicti...
1612.02511
Kyu Jung Bae
Kyu Jung Bae, Howard Baer, Koichi Hamaguchi, and Kazunori Nakayama
Affleck-Dine Leptogenesis with Varying Peccei-Quinn Scale
1+21 pages, 1 figure
null
10.1007/JHEP02(2017)017
CTPU-16-44, UT-16-37, IPMU-16-0190
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Affleck-Dine leptogenesis scenario along the LHu flat direction is reconsidered. It is known that successful Affleck-Dine leptogenesis requires that the lightest neutrino mass is extremely small. This situation can be significantly relaxed if the neutrino mass in the early universe is different from the present o...
[ { "created": "Thu, 8 Dec 2016 02:18:47 GMT", "version": "v1" } ]
2017-03-08
[ [ "Bae", "Kyu Jung", "" ], [ "Baer", "Howard", "" ], [ "Hamaguchi", "Koichi", "" ], [ "Nakayama", "Kazunori", "" ] ]
The Affleck-Dine leptogenesis scenario along the LHu flat direction is reconsidered. It is known that successful Affleck-Dine leptogenesis requires that the lightest neutrino mass is extremely small. This situation can be significantly relaxed if the neutrino mass in the early universe is different from the present one...
1610.08530
Greg Jackson B.Sc.
G. Jackson and A. Peshier
Tracing the pressure of the gluon plasma
18 pages, 7 figures, published version
Phys. Rev. D 95, 054021 (2017)
10.1103/PhysRevD.95.054021
null
hep-ph hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Being interested in how a strongly coupled system approaches asymptotic freedom, we re-examine existing precision lattice QCD results for thermodynamic properties of the gluon plasma in a large temperature range. We discuss and thoroughly test the applicability of perturbative results, on which grounds we then infer ...
[ { "created": "Wed, 26 Oct 2016 20:04:35 GMT", "version": "v1" }, { "created": "Thu, 30 Mar 2017 13:16:55 GMT", "version": "v2" } ]
2017-04-05
[ [ "Jackson", "G.", "" ], [ "Peshier", "A.", "" ] ]
Being interested in how a strongly coupled system approaches asymptotic freedom, we re-examine existing precision lattice QCD results for thermodynamic properties of the gluon plasma in a large temperature range. We discuss and thoroughly test the applicability of perturbative results, on which grounds we then infer th...
hep-ph/9506317
Paolo Nason
P. Nason and M.H. Seymour
Infrared Renormalons and Power Suppressed Effects in $e^+e^-$ Jet Events
20 pages, Latex, epsfig, 3 tar-gzip-uuencoded figures. Also available from http://surya11.cern.ch/users/nason/misc/
Nucl.Phys. B454 (1995) 291-312
10.1016/0550-3213(95)00461-Z
CERN-TH/95-150, IFUM 507/FT
hep-ph
null
We study the effect of infrared renormalons upon shape variables that are commonly used to determine the strong coupling constant in $e^+e^-$ annihilation into hadronic jets. We consider the model of QCD in the limit of large $n_f$. We find a wide variety of different behaviours of shape variables with respect to pow...
[ { "created": "Tue, 13 Jun 1995 15:55:14 GMT", "version": "v1" }, { "created": "Wed, 14 Jun 1995 09:12:53 GMT", "version": "v2" }, { "created": "Fri, 16 Jun 1995 14:03:46 GMT", "version": "v3" } ]
2009-10-28
[ [ "Nason", "P.", "" ], [ "Seymour", "M. H.", "" ] ]
We study the effect of infrared renormalons upon shape variables that are commonly used to determine the strong coupling constant in $e^+e^-$ annihilation into hadronic jets. We consider the model of QCD in the limit of large $n_f$. We find a wide variety of different behaviours of shape variables with respect to power...
1712.07237
Jia Liu
Jia Liu, Lian-Tao Wang, Xiao-Ping Wang, Wei Xue
Exposing Dark Sector with Future Z-Factories
42 pages, 16 figures, 2 tables. v2: references added, particle separation improved, minor changes in figures, version matched to the journal
Phys. Rev. D 97, 095044 (2018)
10.1103/PhysRevD.97.095044
CERN-TH-2017-278, EFI-17-28, MITP/17-102, MIT-CTP/4972
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the prospects of searching dark sector models via exotic Z-boson decay at future $e^+ e^-$ colliders with Giga Z and Tera Z options. Four general categories of dark sector models: Higgs portal dark matter, vector portal dark matter, inelastic dark matter and axion-like particles, are considered. Focusi...
[ { "created": "Tue, 19 Dec 2017 22:04:18 GMT", "version": "v1" }, { "created": "Fri, 11 May 2018 23:52:09 GMT", "version": "v2" } ]
2018-06-06
[ [ "Liu", "Jia", "" ], [ "Wang", "Lian-Tao", "" ], [ "Wang", "Xiao-Ping", "" ], [ "Xue", "Wei", "" ] ]
We investigate the prospects of searching dark sector models via exotic Z-boson decay at future $e^+ e^-$ colliders with Giga Z and Tera Z options. Four general categories of dark sector models: Higgs portal dark matter, vector portal dark matter, inelastic dark matter and axion-like particles, are considered. Focusing...
hep-ph/9806212
Anna Stasto
A.D.Martin, M.G.Ryskin and A.M.Stasto
The description of $F_2$ at low $Q^2$
18 pages, Latex, 10 ps figures; references to the photoproduction data points have been changed
Eur.Phys.J.C7:643-654,1999
10.1007/s100529801035
DTP/98/20
hep-ph
null
We analyse the data for the proton structure function $F_2$ over the entire $Q^2$ domain, including especially low $Q^2$, in terms of perturbative and non-perturbative QCD contributions. The small distance configurations are given by perturbative QCD, while the large distance contributions are given by the vector dom...
[ { "created": "Mon, 1 Jun 1998 08:07:57 GMT", "version": "v1" }, { "created": "Sun, 21 Jun 1998 16:39:48 GMT", "version": "v2" } ]
2011-09-13
[ [ "Martin", "A. D.", "" ], [ "Ryskin", "M. G.", "" ], [ "Stasto", "A. M.", "" ] ]
We analyse the data for the proton structure function $F_2$ over the entire $Q^2$ domain, including especially low $Q^2$, in terms of perturbative and non-perturbative QCD contributions. The small distance configurations are given by perturbative QCD, while the large distance contributions are given by the vector domin...
hep-ph/9305288
Mike Berger
V. Barger, M. S. Berger, P. Ohmann, and R.J.N. Phillips
Phenomenological Implications of the m_t RGE Fixed Point for SUSY Higgs Boson Searches
(Talk given at the Hawaii LCWS VB), 4 pages + 4 EPS figures included (uuencoded), MAD/PH/760
Phys. Lett. B314 (1993) 351
10.1016/0370-2693(93)91248-L
null
hep-ph
null
In minimal SUSY-GUT models with $M_{SUSY}\alt 1$ TeV, the renormalization group equations have a solution dominated by the infrared fixed point of the top Yukawa coupling. This fixed point predicts $m_t\simeq (200\; {\rm GeV})\sin \beta $; combined with the LEP results it excludes $m_t\alt 130$ GeV. For $m_t$ in the ...
[ { "created": "Wed, 19 May 1993 17:08:14 GMT", "version": "v1" } ]
2009-10-22
[ [ "Barger", "V.", "" ], [ "Berger", "M. S.", "" ], [ "Ohmann", "P.", "" ], [ "Phillips", "R. J. N.", "" ] ]
In minimal SUSY-GUT models with $M_{SUSY}\alt 1$ TeV, the renormalization group equations have a solution dominated by the infrared fixed point of the top Yukawa coupling. This fixed point predicts $m_t\simeq (200\; {\rm GeV})\sin \beta $; combined with the LEP results it excludes $m_t\alt 130$ GeV. For $m_t$ in the ra...
hep-ph/9507214
null
L. Dixon
Strings and Supersymmetry as Tools for Perturbative QCD
LaTex, 11 pages with 2 encapsulated figures in a uuencoded file. Presented at SUSY95, Paris, May, 1995
null
null
SLAC-PUB-95-6946
hep-ph hep-th
null
We review techniques simplifying the analytic calculation of one-loop QCD amplitudes with many external legs, for use in next-to-leading-order corrections to multi-jet processes. We explain how a supersymmetry-inspired organization works well in conjunction with other tools, namely the color and helicity decompositio...
[ { "created": "Tue, 4 Jul 1995 00:52:57 GMT", "version": "v1" } ]
2007-05-23
[ [ "Dixon", "L.", "" ] ]
We review techniques simplifying the analytic calculation of one-loop QCD amplitudes with many external legs, for use in next-to-leading-order corrections to multi-jet processes. We explain how a supersymmetry-inspired organization works well in conjunction with other tools, namely the color and helicity decompositions...
1210.7584
Prashant Shukla
A. Abdulsalam and Prashant Shukla
Suppression of bottomonia states in finite size quark gluon plasma in PbPb collisions at Large Hadron Collider
14 pages, 5 figures, To appear in Int. j. of Mod. Phys
null
10.1142/S0217751X13501054
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The bottomonium states due to their varying binding energies dissolve at different temperatures and thus their nuclear modification factors and relative yields have potential to map the properties of Quark Gluon Plasma (QGP). We estimate the suppression of bottomonia states due to color screening in an expanding QGP ...
[ { "created": "Mon, 29 Oct 2012 08:04:22 GMT", "version": "v1" }, { "created": "Fri, 30 Aug 2013 06:50:08 GMT", "version": "v2" } ]
2015-06-11
[ [ "Abdulsalam", "A.", "" ], [ "Shukla", "Prashant", "" ] ]
The bottomonium states due to their varying binding energies dissolve at different temperatures and thus their nuclear modification factors and relative yields have potential to map the properties of Quark Gluon Plasma (QGP). We estimate the suppression of bottomonia states due to color screening in an expanding QGP of...
hep-ph/9605387
Mariano Quiros
J.M. Moreno, D.H. Oaknin and M. Quiros
Sphalerons in the MSSM
36 pages, latex+psfig, 15 figures
Nucl.Phys.B483:267-290,1997
10.1016/S0550-3213(96)00562-7
IEM-FT-127/96
hep-ph
null
We construct the sphaleron solution, at zero and finite temperature, in the Minimal Supersymmetric Standard Model as a function of the supersymmetric parameters, including the leading one-loop corrections to the effective potential in the presence of the sphaleron. At zero temperature we have included the one-loop ra...
[ { "created": "Fri, 24 May 1996 01:18:39 GMT", "version": "v1" } ]
2008-12-25
[ [ "Moreno", "J. M.", "" ], [ "Oaknin", "D. H.", "" ], [ "Quiros", "M.", "" ] ]
We construct the sphaleron solution, at zero and finite temperature, in the Minimal Supersymmetric Standard Model as a function of the supersymmetric parameters, including the leading one-loop corrections to the effective potential in the presence of the sphaleron. At zero temperature we have included the one-loop radi...
1408.2620
Pankaj Jain
Pankaj Jain, Gopal Kashyap and Subhadip Mitra
The fine tuning of the cosmological constant in a conformal model
26 pages 12 figures, substantial revisions
null
10.1142/S0217751X15501717
null
hep-ph astro-ph.CO gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider a conformal model involving two real scalar fields in which the conformal symmetry is broken by a soft mechanism and is not anomalous. One of these scalar fields is representative of the standard model Higgs. The model predicts exactly zero cosmological constant. In the simplest version of the model, some...
[ { "created": "Tue, 12 Aug 2014 05:17:13 GMT", "version": "v1" }, { "created": "Tue, 12 May 2015 12:25:39 GMT", "version": "v2" } ]
2015-12-02
[ [ "Jain", "Pankaj", "" ], [ "Kashyap", "Gopal", "" ], [ "Mitra", "Subhadip", "" ] ]
We consider a conformal model involving two real scalar fields in which the conformal symmetry is broken by a soft mechanism and is not anomalous. One of these scalar fields is representative of the standard model Higgs. The model predicts exactly zero cosmological constant. In the simplest version of the model, some o...
hep-ph/0512113
Vladimir Shevchenko
V.I.Shevchenko (ITEP)
Chiral symmetry breaking in confining theories and asymptotic limits of operator product expansion
LaTeX, 20 pages; minor revisions
JHEP 0603 (2006) 082
10.1088/1126-6708/2006/03/082
null
hep-ph hep-th
null
The pattern of spontaneous chiral symmetry breaking (CSB) in confining background fields is analyzed. It is explicitly demonstrated how to get the inverse square root large proper time asymptotic of the operator product expansion which is needed for CSB.
[ { "created": "Fri, 9 Dec 2005 16:00:48 GMT", "version": "v1" }, { "created": "Tue, 4 Apr 2006 13:21:30 GMT", "version": "v2" } ]
2009-11-11
[ [ "Shevchenko", "V. I.", "", "ITEP" ] ]
The pattern of spontaneous chiral symmetry breaking (CSB) in confining background fields is analyzed. It is explicitly demonstrated how to get the inverse square root large proper time asymptotic of the operator product expansion which is needed for CSB.
hep-ph/0102280
Willy van Neerven
V. Ravindran and W.L. van Neerven
QCD and power corrections to sum rules in deep-inelastic lepton-nucleon scattering
47 pages, LaTeX
Nucl.Phys. B605 (2001) 517-557
10.1016/S0550-3213(01)00190-0
null
hep-ph
null
In this paper we study QCD and power corrections to sum rules which show up in deep inelastic lepton-hadron scattering. Furthermore we will make a distinction between fundamental sum rules which can be derived from quantum field theory and those which are of a phenomenological origin. Using current algebra techniques...
[ { "created": "Thu, 22 Feb 2001 18:00:55 GMT", "version": "v1" }, { "created": "Tue, 27 Feb 2001 10:39:10 GMT", "version": "v2" } ]
2009-11-07
[ [ "Ravindran", "V.", "" ], [ "van Neerven", "W. L.", "" ] ]
In this paper we study QCD and power corrections to sum rules which show up in deep inelastic lepton-hadron scattering. Furthermore we will make a distinction between fundamental sum rules which can be derived from quantum field theory and those which are of a phenomenological origin. Using current algebra techniques t...
hep-ph/9412362
Alexander Makhlin
A.Makhlin
Quantum Field Kinetics
13 pages, REVTeX, 2 postscript figures appended
Phys.Rev.C51:3454-3464,1995
10.1103/PhysRevC.51.3454
WSU-NP-94-3
hep-ph
null
Using the general framework of quantum field theory, we derive basic equations of quantum field kinetics. The main goal of this approach is to compute the observables associated with a quark-gluon plasma at different stages of its evolution. We start by rewriting the integral equations for the field correlators in di...
[ { "created": "Thu, 22 Dec 1994 19:14:11 GMT", "version": "v1" } ]
2009-09-25
[ [ "Makhlin", "A.", "" ] ]
Using the general framework of quantum field theory, we derive basic equations of quantum field kinetics. The main goal of this approach is to compute the observables associated with a quark-gluon plasma at different stages of its evolution. We start by rewriting the integral equations for the field correlators in diff...
2008.05703
Claude Bourrely
Claude Bourrely, Franco Buccella, Jen-Chieh Peng
A New Extraction of Pion Parton Distributions in the Statistical Model
5 pages, 5 figures
null
10.1016/j.physletb.2020.136021
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a new analysis to extract pion's parton distribution functions (PDFs) in the framework of the statistical model. Starting from the statistical model framework first developed for the spin-1/2 nucleon, we apply appropriate modifications taking into account the spin-0 nature of pion and the isospin and charg...
[ { "created": "Thu, 13 Aug 2020 06:06:07 GMT", "version": "v1" } ]
2021-02-03
[ [ "Bourrely", "Claude", "" ], [ "Buccella", "Franco", "" ], [ "Peng", "Jen-Chieh", "" ] ]
We present a new analysis to extract pion's parton distribution functions (PDFs) in the framework of the statistical model. Starting from the statistical model framework first developed for the spin-1/2 nucleon, we apply appropriate modifications taking into account the spin-0 nature of pion and the isospin and charge-...
0710.3100
Mikhail Smolyakov
Edward E. Boos, Viacheslav E. Bunichev, Mikhail N. Smolyakov, Igor P. Volobuev
Testing extra dimensions below the production threshold of Kaluza-Klein excitations
20 pages, 8 figures, LaTeX. Added figures, enlarged phenomenological part
Phys.Rev.D79:104013,2009
10.1103/PhysRevD.79.104013
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider a stabilized RS1 model in the energy range below the direct production of KK states. In this range we work out the effective Lagrangian due to exchange of heavy KK tensor graviton and scalar radion states and compute explicitly the corresponding effective coupling constants. As an example, the Drell-Yan l...
[ { "created": "Tue, 16 Oct 2007 15:54:42 GMT", "version": "v1" }, { "created": "Fri, 26 Oct 2007 14:54:19 GMT", "version": "v2" }, { "created": "Tue, 30 Oct 2007 21:46:32 GMT", "version": "v3" }, { "created": "Sun, 19 Oct 2008 11:35:45 GMT", "version": "v4" }, { "c...
2013-05-29
[ [ "Boos", "Edward E.", "" ], [ "Bunichev", "Viacheslav E.", "" ], [ "Smolyakov", "Mikhail N.", "" ], [ "Volobuev", "Igor P.", "" ] ]
We consider a stabilized RS1 model in the energy range below the direct production of KK states. In this range we work out the effective Lagrangian due to exchange of heavy KK tensor graviton and scalar radion states and compute explicitly the corresponding effective coupling constants. As an example, the Drell-Yan lep...
1007.5520
JoAnne Hewett
R.C. Cotta, J.A. Conley, J.S. Gainer, J.L. Hewett, and T.G. Rizzo
Cosmic Ray Anomalies from the MSSM?
57 pages, 31 figures, references added
JHEP 1101:064,2011
10.1007/JHEP01(2011)064
SLAC-PUB-14211, Bonn-TH-2010-05, ANL-HEP-PR-10-40, NUHEP-TH/10-10
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The recent positron excess in cosmic rays (CR) observed by the PAMELA satellite may be a signal for dark matter (DM) annihilation. When these measurements are combined with those from FERMI on the total ($e^++e^-$) flux and from PAMELA itself on the $\bar p/p$ ratio, these and other results are difficult to reconcile...
[ { "created": "Fri, 30 Jul 2010 19:47:18 GMT", "version": "v1" }, { "created": "Mon, 16 Aug 2010 20:52:31 GMT", "version": "v2" } ]
2011-03-07
[ [ "Cotta", "R. C.", "" ], [ "Conley", "J. A.", "" ], [ "Gainer", "J. S.", "" ], [ "Hewett", "J. L.", "" ], [ "Rizzo", "T. G.", "" ] ]
The recent positron excess in cosmic rays (CR) observed by the PAMELA satellite may be a signal for dark matter (DM) annihilation. When these measurements are combined with those from FERMI on the total ($e^++e^-$) flux and from PAMELA itself on the $\bar p/p$ ratio, these and other results are difficult to reconcile w...
hep-ph/0212390
Yan QiShu
Qi-Shu Yan and Dong-Sheng Du
The one loop renormalization of the effective Higgs sector and its implications
ReVTeX, 18 pages; in the sequel to hep-ph/0211258, hep-ph/0211301, and hep-ph/0212367
null
null
null
hep-ph
null
We study the one-loop renormalization the standard model with anomalous Higgs couplings ($O(p^2)$) by using the background field method, and provide the whole divergence structure at one loop level. The one-loop divergence structure indicates that, under the quantum corrections, only after taking into account the mas...
[ { "created": "Mon, 30 Dec 2002 11:47:03 GMT", "version": "v1" } ]
2007-05-23
[ [ "Yan", "Qi-Shu", "" ], [ "Du", "Dong-Sheng", "" ] ]
We study the one-loop renormalization the standard model with anomalous Higgs couplings ($O(p^2)$) by using the background field method, and provide the whole divergence structure at one loop level. The one-loop divergence structure indicates that, under the quantum corrections, only after taking into account the mass ...
0902.1728
A. N. Ivanov
M. Faber, A. N. Ivanov, V. A. Ivanova, J. Marton, M. Pitschmann, N. I. Troitskaya, M. Wellenzohn
On Bound-State beta^- Decay Rate of the Free Neutron
3 pages
null
null
null
hep-ph hep-ex nucl-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the bound-state beta^- decay rate of the free neutron. We show that hydrogen in the final state of the decay is produced with a probability of about 99% in the hyperfine state with zero orbital l = 0 and atomic angular momentum F = 0.
[ { "created": "Tue, 10 Feb 2009 19:32:42 GMT", "version": "v1" } ]
2009-02-11
[ [ "Faber", "M.", "" ], [ "Ivanov", "A. N.", "" ], [ "Ivanova", "V. A.", "" ], [ "Marton", "J.", "" ], [ "Pitschmann", "M.", "" ], [ "Troitskaya", "N. I.", "" ], [ "Wellenzohn", "M.", "" ] ]
We calculate the bound-state beta^- decay rate of the free neutron. We show that hydrogen in the final state of the decay is produced with a probability of about 99% in the hyperfine state with zero orbital l = 0 and atomic angular momentum F = 0.
1603.08187
Alexander Snigirev
A.M. Snigirev
Triple parton scattering in collinear approximation of perturbative QCD
10 pages, considerably extended version, accepted for publication in Phys. Rev. D
Phys. Rev. D 94, 034026 (2016)
10.1103/PhysRevD.94.034026
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Revised formulas for the inclusive cross section of a triple parton scattering process in a hadron collision are suggested basing on the modified collinear three-parton distributions. The possible phenomenological issues are discussed.
[ { "created": "Sun, 27 Mar 2016 08:46:43 GMT", "version": "v1" }, { "created": "Thu, 4 Aug 2016 17:23:16 GMT", "version": "v2" } ]
2016-08-17
[ [ "Snigirev", "A. M.", "" ] ]
Revised formulas for the inclusive cross section of a triple parton scattering process in a hadron collision are suggested basing on the modified collinear three-parton distributions. The possible phenomenological issues are discussed.
2104.14881
Yu-Feng Zhou
Yu-Chen Ding, Yu-Lin Ku, Chun-Cheng Wei, Yu-Feng Zhou
Consistent explanation for the cosmic-ray positron excess in p-wave Sommerfeld-enhanced dark matter annihilation
33 pages, 9 figures, discussions on bound-state formation added, version to appear in JCAP
null
10.1088/1475-7516/2021/09/005
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Sommerfeld-enhanced dark matter (DM) annihilation through $s$-wave has been widely considered as a consistent explanation for both the observed cosmic-ray (CR) positron excess and the DM thermal relic density. However, as the $s$-wave Sommerfeld-enhanced annihilation cross section increases monotonically with decreas...
[ { "created": "Fri, 30 Apr 2021 10:09:14 GMT", "version": "v1" }, { "created": "Tue, 10 Aug 2021 10:30:14 GMT", "version": "v2" } ]
2021-09-29
[ [ "Ding", "Yu-Chen", "" ], [ "Ku", "Yu-Lin", "" ], [ "Wei", "Chun-Cheng", "" ], [ "Zhou", "Yu-Feng", "" ] ]
Sommerfeld-enhanced dark matter (DM) annihilation through $s$-wave has been widely considered as a consistent explanation for both the observed cosmic-ray (CR) positron excess and the DM thermal relic density. However, as the $s$-wave Sommerfeld-enhanced annihilation cross section increases monotonically with decreasin...
hep-ph/0107007
Toshihiko Ota
Toshihiko Ota, Joe Sato, and Yoshitaka Kuno
Search for T-violation in Neutrino Oscillation with the Use of Muon Polarization at a Neutrino Factory
13 pages, 4 figures
Phys.Lett. B520 (2001) 289-297
10.1016/S0370-2693(01)01135-2
KYUSHU-HET 57, OUHEP-01-1
hep-ph
null
A possibility to search for T-violation in neutrino oscillation with the use of muon polarization is studied. The sensitivity to T-violation is examined with different muon polarization as a function of muon energy and long-baseline distances.
[ { "created": "Mon, 2 Jul 2001 08:35:18 GMT", "version": "v1" }, { "created": "Tue, 3 Jul 2001 01:48:14 GMT", "version": "v2" }, { "created": "Tue, 6 Nov 2001 05:53:52 GMT", "version": "v3" } ]
2009-11-07
[ [ "Ota", "Toshihiko", "" ], [ "Sato", "Joe", "" ], [ "Kuno", "Yoshitaka", "" ] ]
A possibility to search for T-violation in neutrino oscillation with the use of muon polarization is studied. The sensitivity to T-violation is examined with different muon polarization as a function of muon energy and long-baseline distances.
1003.1838
Yutaka Tobita
K. Ishikawa and Y. Tobita
Macroscopic Interferences of Neutrino Waves
12 pages, 2 figures
null
null
EPHOU-10-001
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Interference phenomena of neutrinos are studied. High energy neutrino in T2K near detector and low energy neutrino in KamLAND are possible experiments that could show macroscopic interferences of neutrino waves. In both experiments interference patterns may give new insights on the absolute value of the neutrino mass...
[ { "created": "Tue, 9 Mar 2010 10:21:44 GMT", "version": "v1" } ]
2010-03-10
[ [ "Ishikawa", "K.", "" ], [ "Tobita", "Y.", "" ] ]
Interference phenomena of neutrinos are studied. High energy neutrino in T2K near detector and low energy neutrino in KamLAND are possible experiments that could show macroscopic interferences of neutrino waves. In both experiments interference patterns may give new insights on the absolute value of the neutrino mass.
1206.0699
Jorge de Blas Mateo
Jorge de Blas, Antonio Delgado, Bryan Ostdiek, Alejandro de la Puente
LHC Signals of Non-Custodial Warped 5D Models
pdfLateX, 22 pages, 17 figures
null
10.1103/PhysRevD.86.015028
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the implications at the LHC for a recent class of non-custodial warped extra-dimensional models where the AdS_5 metric is modified near the infrared brane. Such models allow for TeV Kaluza-Klein excitations without conflict with electroweak precision tests. We discuss both the production of electroweak and s...
[ { "created": "Mon, 4 Jun 2012 18:45:26 GMT", "version": "v1" } ]
2013-05-30
[ [ "de Blas", "Jorge", "" ], [ "Delgado", "Antonio", "" ], [ "Ostdiek", "Bryan", "" ], [ "de la Puente", "Alejandro", "" ] ]
We study the implications at the LHC for a recent class of non-custodial warped extra-dimensional models where the AdS_5 metric is modified near the infrared brane. Such models allow for TeV Kaluza-Klein excitations without conflict with electroweak precision tests. We discuss both the production of electroweak and str...
1306.3861
Bhavik Kodrani
Amol Dighe (Tata Inst.), Diptimoy Ghosh (INFN, Rome), Bhavik P. Kodrani (Tata Inst.)
Nonuniversality of indirect CP asymmetries in $D \to \pi\pi, KK$ decays
23 pages, 14 Postscript figures, matches published version
Phys. Rev. D. 89, 096008 (2014)
10.1103/PhysRevD.89.096008
TIFR/TH/13-20
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We point out that, if the direct CP asymmetries in the $D \to \pi^+ \pi^-$ and $D \to K^+ K^-$ decays are unequal, the indirect CP asymmetries as measured in these modes are necessarily unequal. This nonuniversality of indirect CP asymmetries can be significant with the right amount of new physics contributions, a sc...
[ { "created": "Mon, 17 Jun 2013 13:57:02 GMT", "version": "v1" }, { "created": "Sat, 17 May 2014 10:32:10 GMT", "version": "v2" }, { "created": "Tue, 3 Jun 2014 11:35:25 GMT", "version": "v3" } ]
2014-06-04
[ [ "Dighe", "Amol", "", "Tata Inst." ], [ "Ghosh", "Diptimoy", "", "INFN, Rome" ], [ "Kodrani", "Bhavik P.", "", "Tata Inst." ] ]
We point out that, if the direct CP asymmetries in the $D \to \pi^+ \pi^-$ and $D \to K^+ K^-$ decays are unequal, the indirect CP asymmetries as measured in these modes are necessarily unequal. This nonuniversality of indirect CP asymmetries can be significant with the right amount of new physics contributions, a scen...
1310.6263
Walter Grimus
Walter Grimus
Residual symmetries in the lepton mass matrices
7 pages no figures, talk presented at XXXVII International Conference of Theoretical Physics, "Matter to the Deepest," Ustron, September 1-6, 2013
null
10.5506/APhysPolB.44.2331
UWThPh-2013-30
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It has been suggested that residual symmetries in the charged-lepton and neutrino mass matrices can possibly reveal the flavour symmetry group of the lepton sector. We review the basic ideas of this purely group-theoretical approach and discuss some of its results. Finally, we also list its shortcomings.
[ { "created": "Wed, 23 Oct 2013 15:37:04 GMT", "version": "v1" } ]
2015-06-17
[ [ "Grimus", "Walter", "" ] ]
It has been suggested that residual symmetries in the charged-lepton and neutrino mass matrices can possibly reveal the flavour symmetry group of the lepton sector. We review the basic ideas of this purely group-theoretical approach and discuss some of its results. Finally, we also list its shortcomings.
hep-ph/0701276
Edmond Iancu
Edmond Iancu, Larry McLerran
Liouville field theory for gluon saturation in QCD at high energy
33 pages, 9 figures
Nucl.Phys.A793:96-127,2007
10.1016/j.nuclphysa.2007.06.010
SACLAY-T07/013, BNL-NT-07/10
hep-ph hep-th
null
We argue that quantum Liouville field theory supplemented with a suitable source term is the effective theory which describes the short-range correlations of the gluon saturation momentum in the two-dimensional impact-parameter space, at sufficiently high energy and for a large number of colors. This is motivated by ...
[ { "created": "Wed, 31 Jan 2007 19:01:55 GMT", "version": "v1" } ]
2008-11-26
[ [ "Iancu", "Edmond", "" ], [ "McLerran", "Larry", "" ] ]
We argue that quantum Liouville field theory supplemented with a suitable source term is the effective theory which describes the short-range correlations of the gluon saturation momentum in the two-dimensional impact-parameter space, at sufficiently high energy and for a large number of colors. This is motivated by re...
1305.3392
Valerie Fiona Domcke
Wilfried Buchmuller, Valerie Domcke, Kohei Kamada, Kai Schmitz
The Gravitational Wave Spectrum from Cosmological B-L Breaking
minor changes: references and comments added, experimental sensitivities updated. Matches version published in JCAP
JCAP10(2013)003
10.1088/1475-7516/2013/10/003
DESY 13-050, IPMU 13-0091
hep-ph astro-ph.CO gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Cosmological B-L breaking is a natural and testable mechanism to generate the initial conditions of the hot early universe. If B-L is broken at the grand unification scale, the false vacuum phase drives hybrid inflation, ending in tachyonic preheating. The decays of heavy B-L Higgs bosons and heavy neutrinos generate...
[ { "created": "Wed, 15 May 2013 09:02:48 GMT", "version": "v1" }, { "created": "Fri, 4 Oct 2013 12:24:45 GMT", "version": "v2" } ]
2015-06-15
[ [ "Buchmuller", "Wilfried", "" ], [ "Domcke", "Valerie", "" ], [ "Kamada", "Kohei", "" ], [ "Schmitz", "Kai", "" ] ]
Cosmological B-L breaking is a natural and testable mechanism to generate the initial conditions of the hot early universe. If B-L is broken at the grand unification scale, the false vacuum phase drives hybrid inflation, ending in tachyonic preheating. The decays of heavy B-L Higgs bosons and heavy neutrinos generate e...
1105.0180
Daniel Almeida Fagundes
D.A. Fagundes and M.J. Menon
Applicability of a Representation for the Martin's Real-Part Formula in Model-Independent Analyses
Two comments and one reference added at the end of Subsec. 3.3; 23 pages, 9 figures; to be published in Int. J. Mod. Phys. A
Int.J.Mod.Phys.A26:3219-3247,2011
10.1142/S0217751X1105378X
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Using a novel representation for the Martin's real-part formula without the full scaling property, an almost model-independent description of the proton-proton differential cross section data at high energies (19.4 GeV - 62.5 GeV) is obtained. In the impact parameter and eikonal frameworks, the extracted inelastic ov...
[ { "created": "Sun, 1 May 2011 15:55:48 GMT", "version": "v1" }, { "created": "Fri, 29 Jul 2011 14:13:11 GMT", "version": "v2" } ]
2011-08-03
[ [ "Fagundes", "D. A.", "" ], [ "Menon", "M. J.", "" ] ]
Using a novel representation for the Martin's real-part formula without the full scaling property, an almost model-independent description of the proton-proton differential cross section data at high energies (19.4 GeV - 62.5 GeV) is obtained. In the impact parameter and eikonal frameworks, the extracted inelastic over...
hep-ph/0601117
Andrey Bogdan V.
A.V.Bogdan, V.S. Fadin
A proof of the reggeized form of amplitudes with quark exchanges
22 pages, 7 figures, use elsart.cls
Nucl.Phys. B740 (2006) 36-57
10.1016/j.nuclphysb.2006.01.033
null
hep-ph
null
A complete proof of the quark Reggeization hypothesis in the leading logarithmic approximation for any quark--gluon inelastic process in the multi--Regge kinematics in all orders of $\alpha_s$ is given. First, we show that the multi--Regge form of QCD amplitudes is guarantied if a set of conditions on the Reggeon ver...
[ { "created": "Sat, 14 Jan 2006 09:38:00 GMT", "version": "v1" } ]
2009-11-11
[ [ "Bogdan", "A. V.", "" ], [ "Fadin", "V. S.", "" ] ]
A complete proof of the quark Reggeization hypothesis in the leading logarithmic approximation for any quark--gluon inelastic process in the multi--Regge kinematics in all orders of $\alpha_s$ is given. First, we show that the multi--Regge form of QCD amplitudes is guarantied if a set of conditions on the Reggeon verti...
0904.0925
Hiroaki Kouno
Hiroaki Kouno, Yuji Sakai, Kouji Kashiwa, Masanobu Yahiro
Roberge-Weiss phase transition and its endpoint
24 pages, 19 figures. Journal version. Some sentences have been revised and added. Fig. 9 has been revised. (New panels have been added.)
J.Phys.G36:115010,2009
10.1088/0954-3899/36/11/115010
SAGA-HE-246
hep-ph hep-lat hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Roberge-Weiss (RW) phase transition in the imaginary chemical potential region is analyzed by the Polyakov-loop extended Nambu--Jona-Lasinio (PNJL) model. In the RW phase transition, the charge-conjugation symmetry is spontaneously broken, while the extended Z3 symmetry (the RW periodicity) is preserved. The RW t...
[ { "created": "Mon, 6 Apr 2009 14:10:14 GMT", "version": "v1" }, { "created": "Wed, 14 Jul 2010 09:43:34 GMT", "version": "v2" } ]
2010-07-15
[ [ "Kouno", "Hiroaki", "" ], [ "Sakai", "Yuji", "" ], [ "Kashiwa", "Kouji", "" ], [ "Yahiro", "Masanobu", "" ] ]
The Roberge-Weiss (RW) phase transition in the imaginary chemical potential region is analyzed by the Polyakov-loop extended Nambu--Jona-Lasinio (PNJL) model. In the RW phase transition, the charge-conjugation symmetry is spontaneously broken, while the extended Z3 symmetry (the RW periodicity) is preserved. The RW tra...
1004.1424
Robert Foot
R. Foot
A CoGeNT confirmation of the DAMA signal
About 8 pages, expanded and updated
Phys.Lett.B692:65-69,2010
10.1016/j.physletb.2010.07.022
null
hep-ph astro-ph.GA
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The CoGeNT collaboration has recently reported a rising low energy spectrum in their ultra low noise germanium detector. This is particularly interesting as the energy range probed by CoGeNT overlaps with the energy region in which DAMA has observed their annual modulation signal. We show that the mirror dark matter ...
[ { "created": "Thu, 8 Apr 2010 20:45:35 GMT", "version": "v1" }, { "created": "Mon, 12 Jul 2010 12:49:51 GMT", "version": "v2" } ]
2010-11-16
[ [ "Foot", "R.", "" ] ]
The CoGeNT collaboration has recently reported a rising low energy spectrum in their ultra low noise germanium detector. This is particularly interesting as the energy range probed by CoGeNT overlaps with the energy region in which DAMA has observed their annual modulation signal. We show that the mirror dark matter ca...
2302.01356
Matthias Steinhauser
Joshua Davies, Go Mishima, Kay Sch\"onwald, Matthias Steinhauser
Analytic approximations of $2\to 2$ processes with massive internal particles
25 pages
null
10.1007/JHEP06(2023)063
P3H-23-008, TTP23-004, TU-1178, ZU-TH 06/23
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider two-loop corrections to $2\to 2$ scattering processes with massive particles in the final state and massive particles in the loop. We discuss the combination of analytic expansions in the high-energy limit and for small Mandelstam variable~$t$. For the example of double Higgs boson production we show that...
[ { "created": "Thu, 2 Feb 2023 19:00:06 GMT", "version": "v1" } ]
2023-06-28
[ [ "Davies", "Joshua", "" ], [ "Mishima", "Go", "" ], [ "Schönwald", "Kay", "" ], [ "Steinhauser", "Matthias", "" ] ]
We consider two-loop corrections to $2\to 2$ scattering processes with massive particles in the final state and massive particles in the loop. We discuss the combination of analytic expansions in the high-energy limit and for small Mandelstam variable~$t$. For the example of double Higgs boson production we show that t...
hep-ph/9803311
Robert Baur
Robert Baur, Joachim Kambor (University of Zurich)
Generalized Heavy Baryon Chiral Perturbation Theory
36 pages, 3 ps-figures, uses Latex2e; discussion of results in sect. 4 improved, Appendix A and typos corrected
Eur.Phys.J.C7:507-524,1999
10.1007/s100529801024
null
hep-ph
null
Standard SU(2) Heavy Baryon Chiral Perturbation Theory is extended in order to include the case of small or even vanishing quark condensate. The effective lagrangian is given to ${\cal O}(p^2)$ in its most general form and to ${\cal O}(p^3)$ in the scalar sector. A method is developed to efficiently construct the rel...
[ { "created": "Wed, 11 Mar 1998 17:11:30 GMT", "version": "v1" }, { "created": "Tue, 3 Nov 1998 10:44:53 GMT", "version": "v2" } ]
2011-09-13
[ [ "Baur", "Robert", "", "University of Zurich" ], [ "Kambor", "Joachim", "", "University of Zurich" ] ]
Standard SU(2) Heavy Baryon Chiral Perturbation Theory is extended in order to include the case of small or even vanishing quark condensate. The effective lagrangian is given to ${\cal O}(p^2)$ in its most general form and to ${\cal O}(p^3)$ in the scalar sector. A method is developed to efficiently construct the relat...
2407.21496
Wenyang Qian
Kazuki Ikeda, Zhong-Bo Kang, Dmitri E. Kharzeev, Wenyang Qian, Fanyi Zhao
Real-time chiral dynamics at finite temperature from quantum simulation
16 pages, 4 figures
null
null
null
hep-ph hep-lat hep-th nucl-th quant-ph
http://creativecommons.org/licenses/by-nc-nd/4.0/
In this study, we explore the real-time dynamics of the chiral magnetic effect (CME) at a finite temperature in the (1+1)-dimensional QED, the massive Schwinger model. By introducing a chiral chemical potential $\mu_5$ through a quench process, we drive the system out of equilibrium and analyze the induced vector cur...
[ { "created": "Wed, 31 Jul 2024 10:10:42 GMT", "version": "v1" } ]
2024-08-01
[ [ "Ikeda", "Kazuki", "" ], [ "Kang", "Zhong-Bo", "" ], [ "Kharzeev", "Dmitri E.", "" ], [ "Qian", "Wenyang", "" ], [ "Zhao", "Fanyi", "" ] ]
In this study, we explore the real-time dynamics of the chiral magnetic effect (CME) at a finite temperature in the (1+1)-dimensional QED, the massive Schwinger model. By introducing a chiral chemical potential $\mu_5$ through a quench process, we drive the system out of equilibrium and analyze the induced vector curre...
0804.0056
Seung-il Nam
Seung-il Nam, Hui-Young Ryu, M.M.Musakhanov, Hyun-Chul Kim
Magnetic susceptibility of the QCD vacuum at finite quark-chemical potential
12 pages, 2 figures
J.Korean Phys.Soc.55:429-434,2009
10.3938/jkps.55.429
CYCU-HEP-09-06, YITP-08-13, INHA-NTG-07/2008
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the QCD magnetic susceptibility chi at the finite quark-chemical potential (mu>0) and at zero temperature (T=0) to explore the pattern of the magnetic phase transition of the QCD vacuum. For this purpose, we employ the nonlocal chiral quark model derived from the instanton vacuum in the presence of the...
[ { "created": "Tue, 1 Apr 2008 05:58:00 GMT", "version": "v1" }, { "created": "Mon, 21 Jul 2008 10:05:33 GMT", "version": "v2" }, { "created": "Mon, 13 Apr 2009 10:10:36 GMT", "version": "v3" }, { "created": "Thu, 7 May 2009 06:37:40 GMT", "version": "v4" } ]
2009-12-15
[ [ "Nam", "Seung-il", "" ], [ "Ryu", "Hui-Young", "" ], [ "Musakhanov", "M. M.", "" ], [ "Kim", "Hyun-Chul", "" ] ]
We investigate the QCD magnetic susceptibility chi at the finite quark-chemical potential (mu>0) and at zero temperature (T=0) to explore the pattern of the magnetic phase transition of the QCD vacuum. For this purpose, we employ the nonlocal chiral quark model derived from the instanton vacuum in the presence of the c...
hep-ph/0207335
Alex Kovner
Alexander Kovner, Urs Achim Wiedemann
No Froissart Bound from Gluon Saturation
5 pages LaTex, final version to be published in Phys. Lett. B, Note added referring to recent controversy
Phys.Lett. B551 (2003) 311-316
10.1016/S0370-2693(02)02907-6
null
hep-ph
null
In the previous work hep-ph/0112140, hep-ph/0204277, we showed that while the nonlinear QCD evolution equation of Balitsky and Kovchegov (BK) leads to saturation of the scattering amplitude locally in impact parameter space, it does not unitarize the total cross section. This result was recently challenged by Ferreir...
[ { "created": "Sun, 28 Jul 2002 16:15:34 GMT", "version": "v1" }, { "created": "Tue, 5 Nov 2002 17:19:34 GMT", "version": "v2" } ]
2009-11-07
[ [ "Kovner", "Alexander", "" ], [ "Wiedemann", "Urs Achim", "" ] ]
In the previous work hep-ph/0112140, hep-ph/0204277, we showed that while the nonlinear QCD evolution equation of Balitsky and Kovchegov (BK) leads to saturation of the scattering amplitude locally in impact parameter space, it does not unitarize the total cross section. This result was recently challenged by Ferreiro,...
2008.06821
Zhao-Huan Yu
Dan-Yang Liu, Chengfeng Cai, Zhao-Huan Yu, Yu-Pan Zeng, Hong-Hao Zhang
Inert sextuplet scalar dark matter at the LHC and future colliders
37 pages, 11 figures
JHEP 10 (2020) 212
10.1007/JHEP10(2020)212
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study a dark matter model constructed by extending the standard model with an inert $\mathrm{SU}(2)_\mathrm{L}$ sextuplet scalar of hypercharge 1/2. The sextuplet components are split by the quartic couplings between the sextuplet and the Higgs doublet after electroweak symmetry breaking, resulting in a dark secto...
[ { "created": "Sun, 16 Aug 2020 02:43:45 GMT", "version": "v1" }, { "created": "Tue, 3 Nov 2020 02:54:30 GMT", "version": "v2" } ]
2020-11-04
[ [ "Liu", "Dan-Yang", "" ], [ "Cai", "Chengfeng", "" ], [ "Yu", "Zhao-Huan", "" ], [ "Zeng", "Yu-Pan", "" ], [ "Zhang", "Hong-Hao", "" ] ]
We study a dark matter model constructed by extending the standard model with an inert $\mathrm{SU}(2)_\mathrm{L}$ sextuplet scalar of hypercharge 1/2. The sextuplet components are split by the quartic couplings between the sextuplet and the Higgs doublet after electroweak symmetry breaking, resulting in a dark sector ...
2308.02004
Paolo Salucci
Fabrizio Nesti, Paolo Salucci and Nicola Turini
The Quest for the Nature of the Dark Matter: The Need of a New Paradigm
15 pages. 9 figures
Astronomy, 2023, 2, 90-104
10.3390/astronomy2020007
null
hep-ph astro-ph.CO
http://creativecommons.org/licenses/by/4.0/
The phenomenon of the Dark matter baffles the researchers: the underlying dark particle has escaped so far the detection and its astrophysical role appears complex and entangled with that of the standard luminous particles. We propose that, in order to act efficiently, alongside with abandoning the current $\Lambda C...
[ { "created": "Thu, 3 Aug 2023 19:39:03 GMT", "version": "v1" } ]
2023-08-07
[ [ "Nesti", "Fabrizio", "" ], [ "Salucci", "Paolo", "" ], [ "Turini", "Nicola", "" ] ]
The phenomenon of the Dark matter baffles the researchers: the underlying dark particle has escaped so far the detection and its astrophysical role appears complex and entangled with that of the standard luminous particles. We propose that, in order to act efficiently, alongside with abandoning the current $\Lambda CDM...
hep-ph/0605209
Mikko Laine
Takehiko Asaka, Mikko Laine, Mikhail Shaposhnikov
On the hadronic contribution to sterile neutrino production
28 pages. v2: small clarifications added, published version
JHEP 0606 (2006) 053
10.1088/1126-6708/2006/06/053
null
hep-ph astro-ph
null
Sterile neutrinos with masses in the keV range are considered to be a viable candidate for warm dark matter. The rate of their production through active-sterile neutrino transitions peaks, however, at temperatures of the order of the QCD scale, which makes it difficult to estimate their relic abundance quantitatively...
[ { "created": "Fri, 19 May 2006 12:31:32 GMT", "version": "v1" }, { "created": "Mon, 26 Jun 2006 12:30:38 GMT", "version": "v2" } ]
2009-11-11
[ [ "Asaka", "Takehiko", "" ], [ "Laine", "Mikko", "" ], [ "Shaposhnikov", "Mikhail", "" ] ]
Sterile neutrinos with masses in the keV range are considered to be a viable candidate for warm dark matter. The rate of their production through active-sterile neutrino transitions peaks, however, at temperatures of the order of the QCD scale, which makes it difficult to estimate their relic abundance quantitatively, ...
hep-ph/9411385
null
Michael Gronau
Testing the Standard Model of CP Violation in the B System
21 pages, Figures can be obtained from PHSECRT@TECHNION
null
null
null
hep-ph
null
We review the subject of CP violation in the $B$ meson system within the Standard Model of CP violation, which is based on a complex phase in the Cabibbo-Kobayashi-Maskawa (CKM) matrix. Three kinds of CP nonconservation are studied: In $B^0-\Bbar$ mixing, in mixed neutral $B$ decays to states which are common decay p...
[ { "created": "Thu, 24 Nov 1994 14:01:51 GMT", "version": "v1" } ]
2007-05-23
[ [ "Gronau", "Michael", "" ] ]
We review the subject of CP violation in the $B$ meson system within the Standard Model of CP violation, which is based on a complex phase in the Cabibbo-Kobayashi-Maskawa (CKM) matrix. Three kinds of CP nonconservation are studied: In $B^0-\Bbar$ mixing, in mixed neutral $B$ decays to states which are common decay pro...
hep-ph/9506303
null
F. Hautmann
Resummed Predictions for the Structure Function F2 at Small x
8 pages, uuencoded postscript
null
null
Cavendish-HEP-95/04
hep-ph
null
We report the results of including resummed splitting functions in the QCD evolution equations at small x, and discuss the predictions that follow for the deep inelastic structure functions. *Contribution at XXX Rencontres de Moriond, Les Arcs, March 1995
[ { "created": "Mon, 12 Jun 1995 20:32:45 GMT", "version": "v1" } ]
2016-09-01
[ [ "Hautmann", "F.", "" ] ]
We report the results of including resummed splitting functions in the QCD evolution equations at small x, and discuss the predictions that follow for the deep inelastic structure functions. *Contribution at XXX Rencontres de Moriond, Les Arcs, March 1995
hep-ph/0312277
Jens Braun
Jens Braun, Kai Schwenzer, Hans-J\"urgen Pirner
Linking the Quark Meson Model with QCD at High Temperature
11 pages, 4 figures additional discussion of the second order phase transition
Phys.Rev. D70 (2004) 085016
10.1103/PhysRevD.70.085016
null
hep-ph
null
We model the transition of a system of quarks and gluons at high energies to a system of quarks and mesons at low energies in a consistent renormalization group approach. Flow equations interpolate between the physics of the high-temperature degrees of freedom and the low-temperature dynamics at a scale of 1 GeV. We ...
[ { "created": "Fri, 19 Dec 2003 11:00:15 GMT", "version": "v1" }, { "created": "Mon, 5 Apr 2004 14:39:08 GMT", "version": "v2" } ]
2009-11-10
[ [ "Braun", "Jens", "" ], [ "Schwenzer", "Kai", "" ], [ "Pirner", "Hans-Jürgen", "" ] ]
We model the transition of a system of quarks and gluons at high energies to a system of quarks and mesons at low energies in a consistent renormalization group approach. Flow equations interpolate between the physics of the high-temperature degrees of freedom and the low-temperature dynamics at a scale of 1 GeV. We al...
1304.6732
Howard Baer
Howard Baer, Vernon Barger and Maren Padeffke-Kirkland
Electroweak versus high scale finetuning in the 19-parameter SUGRA model
25 pages with 17 figures; some references added and figures clarified in version 2
Phys. Rev. D 88, 055026 (2013)
10.1103/PhysRevD.88.055026
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recently, two measures of electroweak finetuning (EWFT) have been introduced for SUSY models: \Delta_{EW} compares the Z mass to each separate weak scale contribution to m_Z while \Delta_{HS} compares the Z mass to high scale input parameters and their consequent renormalizaton group evolution (1/\Delta is the % of f...
[ { "created": "Wed, 24 Apr 2013 20:04:02 GMT", "version": "v1" }, { "created": "Thu, 2 May 2013 16:38:23 GMT", "version": "v2" } ]
2013-10-30
[ [ "Baer", "Howard", "" ], [ "Barger", "Vernon", "" ], [ "Padeffke-Kirkland", "Maren", "" ] ]
Recently, two measures of electroweak finetuning (EWFT) have been introduced for SUSY models: \Delta_{EW} compares the Z mass to each separate weak scale contribution to m_Z while \Delta_{HS} compares the Z mass to high scale input parameters and their consequent renormalizaton group evolution (1/\Delta is the % of fin...
hep-ph/0209366
Reinhard Alkofer
Reinhard Alkofer, Christian S. Fischer and Lorenz von Smekal
Infrared Exponents and the Running Coupling of Landau gauge QCD and their Relation to Confinement
3 pages, 3 figures; talk given by R.A. at the conference Quark Nuclear Physics 2002
Eur.Phys.J. A17 (2003) 773
10.1140/epja/i2002-10212-8
UNITUE-THEP-23/2002, FAU-TP3-02/26
hep-ph
null
The infrared behaviour of the gluon and ghost propagators in Landau gauge QCD is reviewed. The Kugo-Ojima confinement criterion and the Gribov-Zwanziger horizon condition result from quite general properties of the ghost Dyson-Schwinger equation. The numerical solutions for the gluon and ghost propagators obtained fr...
[ { "created": "Mon, 30 Sep 2002 12:12:31 GMT", "version": "v1" } ]
2007-05-23
[ [ "Alkofer", "Reinhard", "" ], [ "Fischer", "Christian S.", "" ], [ "von Smekal", "Lorenz", "" ] ]
The infrared behaviour of the gluon and ghost propagators in Landau gauge QCD is reviewed. The Kugo-Ojima confinement criterion and the Gribov-Zwanziger horizon condition result from quite general properties of the ghost Dyson-Schwinger equation. The numerical solutions for the gluon and ghost propagators obtained from...
1305.3870
Massimiliano Grazzini
S. Catani, M. Grazzini, A. Torre
Soft-gluon resummation for single-particle inclusive hadroproduction at high transverse momentum
References added. Version published on Nucl. Phys. B
Nucl. Phys. B 874 (2013) 720
null
ZU-TH 09/13
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the cross section for one-particle inclusive production at high transverse momentum in hadronic collisions. We present the all-order resummation formula that controls the logarithmically-enhanced perturbative QCD contributions to the partonic cross section in the threshold region, at fixed rapidity of the...
[ { "created": "Thu, 16 May 2013 16:57:50 GMT", "version": "v1" }, { "created": "Wed, 24 Jul 2013 10:07:39 GMT", "version": "v2" } ]
2013-07-25
[ [ "Catani", "S.", "" ], [ "Grazzini", "M.", "" ], [ "Torre", "A.", "" ] ]
We consider the cross section for one-particle inclusive production at high transverse momentum in hadronic collisions. We present the all-order resummation formula that controls the logarithmically-enhanced perturbative QCD contributions to the partonic cross section in the threshold region, at fixed rapidity of the o...
1411.7876
Gernot Eichmann
Gernot Eichmann, Christian S. Fischer, Walter Heupel, Richard Williams
The muon g-2: Dyson-Schwinger status on hadronic light-by-light scattering
11 pages, 7 figures, 2 tables. Proceedings of the 'XIth Quark Confinement and the Hadron Spectrum', September 8-12, 2014, St. Petersburg, Russia. Added references & fixed typos
null
null
null
hep-ph hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We give a status report on the hadronic light-by-light scattering contribution to the muon's anomalous magnetic moment from the Dyson-Schwinger approach. We discuss novel, model-independent properties of the light-by-light amplitude: we give its covariant decomposition in view of electromagnetic gauge invariance and ...
[ { "created": "Fri, 28 Nov 2014 14:27:52 GMT", "version": "v1" }, { "created": "Wed, 17 Dec 2014 13:47:04 GMT", "version": "v2" } ]
2014-12-18
[ [ "Eichmann", "Gernot", "" ], [ "Fischer", "Christian S.", "" ], [ "Heupel", "Walter", "" ], [ "Williams", "Richard", "" ] ]
We give a status report on the hadronic light-by-light scattering contribution to the muon's anomalous magnetic moment from the Dyson-Schwinger approach. We discuss novel, model-independent properties of the light-by-light amplitude: we give its covariant decomposition in view of electromagnetic gauge invariance and Bo...
hep-ph/0102192
Burkhard Kaempfer
B. Kampfer, K. Gallmeister, O.P. Pavlenko, C. Gale
Dileptons and photons from central heavy-ion collisions at CERN-SPS
4 pages, talk at QM2001, Jan. 15 -20, 2001, Stony Brook
Nucl.Phys.A698:424-427,2002
10.1016/S0375-9474(01)01395-1
null
hep-ph
null
A unique parameterization of secondary (thermal) dilepton and photon yields in heavy-ion experiments at CERN-SPS is proposed. Adding those thermal yields to background contributions the spectral shapes of the CERES/NA45, NA38, NA50, HELIOS/3 and WA98 data from experiments with lead and sulfur beams can be well descri...
[ { "created": "Thu, 15 Feb 2001 15:12:39 GMT", "version": "v1" } ]
2008-11-26
[ [ "Kampfer", "B.", "" ], [ "Gallmeister", "K.", "" ], [ "Pavlenko", "O. P.", "" ], [ "Gale", "C.", "" ] ]
A unique parameterization of secondary (thermal) dilepton and photon yields in heavy-ion experiments at CERN-SPS is proposed. Adding those thermal yields to background contributions the spectral shapes of the CERES/NA45, NA38, NA50, HELIOS/3 and WA98 data from experiments with lead and sulfur beams can be well describe...
1512.09276
Igor Ivanov
I. P. Ivanov, Joao P. Silva
A CP-conserving multi-Higgs model without real basis
6 pages; v2: abstract, introduction, conclusions reformulated, all the results stay unchanged
Phys. Rev. D 93, 095014 (2016)
10.1103/PhysRevD.93.095014
CFTP/16-001
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Models beyond the Standard Model (bSM) often involve elaborate Higgs sectors, which can be a source of CP-violation. It brings up the question of recognizing in an efficient way whether a model is CP-violating. There is a diffuse belief that the issue of explicit CP invariance can be linked to the existence of a basi...
[ { "created": "Thu, 31 Dec 2015 13:08:01 GMT", "version": "v1" }, { "created": "Tue, 12 Jan 2016 17:31:48 GMT", "version": "v2" } ]
2016-05-25
[ [ "Ivanov", "I. P.", "" ], [ "Silva", "Joao P.", "" ] ]
Models beyond the Standard Model (bSM) often involve elaborate Higgs sectors, which can be a source of CP-violation. It brings up the question of recognizing in an efficient way whether a model is CP-violating. There is a diffuse belief that the issue of explicit CP invariance can be linked to the existence of a basis ...
2212.10043
Zhi-Long Han
Ang Liu, Feng-Lan Shao, Zhi-Long Han, Yi Jin, Honglei Li
Shinning Light on Sterile Neutrino Portal Dark Matter from Cosmology and Collider
18 pages,8 figures
null
null
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
Provided the dark sector consisted of a dark scalar $\phi$ and a dark fermion $\chi$ under an exact $Z_2$ symmetry, the sterile neutrino $N$ can act as the messenger between the dark sector and standard model via the Yukawa coupling $\lambda_{ds} \bar{\chi}\phi N$. In this paper, we focus on the specific scenario $m_...
[ { "created": "Tue, 20 Dec 2022 07:29:51 GMT", "version": "v1" } ]
2022-12-21
[ [ "Liu", "Ang", "" ], [ "Shao", "Feng-Lan", "" ], [ "Han", "Zhi-Long", "" ], [ "Jin", "Yi", "" ], [ "Li", "Honglei", "" ] ]
Provided the dark sector consisted of a dark scalar $\phi$ and a dark fermion $\chi$ under an exact $Z_2$ symmetry, the sterile neutrino $N$ can act as the messenger between the dark sector and standard model via the Yukawa coupling $\lambda_{ds} \bar{\chi}\phi N$. In this paper, we focus on the specific scenario $m_N>...
hep-ph/0409132
Victor Abramovsky
V.A. Abramovsky, A.V. Dmitriev, A.A. Shneider
Diffractive processes at high energies
To be published in proceedings of Quarks-2004. 14 pages, 8 figures
null
null
null
hep-ph
null
In this work we calculate pomeron flux in the single diffraction processes. We consider two models: quasi-eikonal model and low constituent model. Both models give the pictures different from the traditional three-reggeon model. Successive developing of modeles gives some indications, that the low constituent model i...
[ { "created": "Sat, 11 Sep 2004 06:25:18 GMT", "version": "v1" } ]
2007-05-23
[ [ "Abramovsky", "V. A.", "" ], [ "Dmitriev", "A. V.", "" ], [ "Shneider", "A. A.", "" ] ]
In this work we calculate pomeron flux in the single diffraction processes. We consider two models: quasi-eikonal model and low constituent model. Both models give the pictures different from the traditional three-reggeon model. Successive developing of modeles gives some indications, that the low constituent model is ...