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1906.11800
Francesco Giovanni Celiberto
Andr\`ee Dafne Bolognino, Francesco Giovanni Celiberto, Dmitry Yu. Ivanov, Mohammed M.A. Mohammed, Alessandro Papa
High-energy effects in forward inclusive dijet and hadron-jet production
6 pages, 2 figures; contribution to the proceedings of the XXVII International Workshop on Deep Inelastic Scattering and Related Subjects (DIS2019), Torino, Italy, 8-12 April, 2019; to appear on Proceedings of Science
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Pursuing the goal to single out the validity region of the high-energy resummation, better known as BFKL approach, and to possibly disentangle BFKL effects from the ones coming from a DGLAP-inspired, fixed-order description, new predictions for the forward inclusive hadron-jet production, tailored on the CMS and CAST...
[ { "created": "Thu, 27 Jun 2019 17:14:53 GMT", "version": "v1" } ]
2019-06-28
[ [ "Bolognino", "Andrèe Dafne", "" ], [ "Celiberto", "Francesco Giovanni", "" ], [ "Ivanov", "Dmitry Yu.", "" ], [ "Mohammed", "Mohammed M. A.", "" ], [ "Papa", "Alessandro", "" ] ]
Pursuing the goal to single out the validity region of the high-energy resummation, better known as BFKL approach, and to possibly disentangle BFKL effects from the ones coming from a DGLAP-inspired, fixed-order description, new predictions for the forward inclusive hadron-jet production, tailored on the CMS and CASTOR...
2402.18870
Vinod Chandra
Vinod Chandra and Santosh K. Das
B-mesons as essential probes of hot QCD matter
17 Pages, 3 Figures, Invited Review for The European Physical Journal Special Topics
Eur. Phys. J. Spec. Top. (2024)
10.1140/epjs/s11734-024-01123-4
null
hep-ph nucl-th
http://creativecommons.org/licenses/by/4.0/
This article elucidates the pivotal role of b-mesons and bottomonium states in exploring the existence and properties of hot QCD matter (commonly known as quark-gluon-plasma (QGP) produced within the crucible heavy-ion collision experiments). Owing to the complex and confounding nature of strong interaction force the...
[ { "created": "Thu, 29 Feb 2024 05:39:33 GMT", "version": "v1" } ]
2024-03-01
[ [ "Chandra", "Vinod", "" ], [ "Das", "Santosh K.", "" ] ]
This article elucidates the pivotal role of b-mesons and bottomonium states in exploring the existence and properties of hot QCD matter (commonly known as quark-gluon-plasma (QGP) produced within the crucible heavy-ion collision experiments). Owing to the complex and confounding nature of strong interaction force the d...
2309.07840
Vishvas Pandey
V. Pandey
Recent Progress in Low Energy Neutrino Scattering Physics and Its Implications for the Standard and Beyond the Standard Model Physics
Invited review article for the Progress in Particle and Nuclear Physics. Published version. 58 pages, 11 figures, 5 tables
Prog. Part. Nucl. Phys. 134, 104078 (2024)
10.1016/j.ppnp.2023.104078
FERMILAB-PUB-23-245-ND
hep-ph hep-ex nucl-ex nucl-th
http://creativecommons.org/licenses/by/4.0/
Neutrinos continue to provide a testing ground for the structure of the standard model of particle physics as well as hints towards the physics beyond the standard model. Neutrinos of energies spanning over several orders of magnitude, originating in many terrestrial and astrophysical processes, have been detected vi...
[ { "created": "Thu, 14 Sep 2023 16:36:36 GMT", "version": "v1" } ]
2023-12-19
[ [ "Pandey", "V.", "" ] ]
Neutrinos continue to provide a testing ground for the structure of the standard model of particle physics as well as hints towards the physics beyond the standard model. Neutrinos of energies spanning over several orders of magnitude, originating in many terrestrial and astrophysical processes, have been detected via ...
0807.3775
Hitoshi Murayama
Hitoshi Murayama
Looking up at seesaw and GUT scales from TeV
Proceedings of "Grand Unified Theories: Current Status and Future Prospects: An International Workshop", Kusatsu, Shiga, Japan, 17-19 December 2007
AIP Conference Proceedings, High Energy Physics, Vol. 1015, 2008
10.1063/1.2939052
IPMU08-0018
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this talk, I discuss how we may approach physics at the seesaw- and GUT-scales using data from the TeV scale. Even though we cannot hope to directly reach these energy scales using particle accelerators, we may get convinced of grand unification and seesaw mechanism based on experimental data if Nature is kind to ...
[ { "created": "Thu, 24 Jul 2008 01:27:45 GMT", "version": "v1" } ]
2009-11-13
[ [ "Murayama", "Hitoshi", "" ] ]
In this talk, I discuss how we may approach physics at the seesaw- and GUT-scales using data from the TeV scale. Even though we cannot hope to directly reach these energy scales using particle accelerators, we may get convinced of grand unification and seesaw mechanism based on experimental data if Nature is kind to us...
hep-ph/0602027
Shrihari Gopalakrishna
Shrihari Gopalakrishna, Andre de Gouvea, Werner Porod
Right-handed Sneutrinos as Nonthermal Dark Matter
17 pages v.2: References added
JCAP 0605 (2006) 005
10.1088/1475-7516/2006/05/005
IFIC/06-01, NUHEP-TH/06-01
hep-ph astro-ph
null
When the minimal supersymmetric standard model is augmented by three right-handed neutrino superfields, one generically predicts that the neutrinos acquire Majorana masses. We postulate that all supersymmetry (SUSY) breaking masses as well as the Majorana masses of the right-handed neutrinos are around the electrowea...
[ { "created": "Thu, 2 Feb 2006 20:53:04 GMT", "version": "v1" }, { "created": "Wed, 15 Feb 2006 00:45:52 GMT", "version": "v2" } ]
2009-11-11
[ [ "Gopalakrishna", "Shrihari", "" ], [ "de Gouvea", "Andre", "" ], [ "Porod", "Werner", "" ] ]
When the minimal supersymmetric standard model is augmented by three right-handed neutrino superfields, one generically predicts that the neutrinos acquire Majorana masses. We postulate that all supersymmetry (SUSY) breaking masses as well as the Majorana masses of the right-handed neutrinos are around the electroweak ...
1512.08221
Hyung Do Kim
Dongjin Chway, Radovan Dermisek, Tae Hyun Jung, Hyung Do Kim
Glue to light signal of a new particle
5 pages, 8 figures, resummation of gluon exchanges near the threshold and discussion added
Phys. Rev. Lett. 117, 061801 (2016)
10.1103/PhysRevLett.117.061801
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Any new particle charged under $SU(3)_C$ and carrying electric charge will leave an imprint in the di-photon invariant mass spectrum as it can mediate $gg \to \gamma \gamma$ process through loops. The combination of properties of loop functions, threshold resummation and gluon pdfs can result in a peak-like feature i...
[ { "created": "Sun, 27 Dec 2015 13:55:02 GMT", "version": "v1" }, { "created": "Sun, 1 May 2016 14:28:27 GMT", "version": "v2" } ]
2016-08-10
[ [ "Chway", "Dongjin", "" ], [ "Dermisek", "Radovan", "" ], [ "Jung", "Tae Hyun", "" ], [ "Kim", "Hyung Do", "" ] ]
Any new particle charged under $SU(3)_C$ and carrying electric charge will leave an imprint in the di-photon invariant mass spectrum as it can mediate $gg \to \gamma \gamma$ process through loops. The combination of properties of loop functions, threshold resummation and gluon pdfs can result in a peak-like feature in ...
hep-ph/9908391
Bogdan A. Dobrescu
Bogdan A. Dobrescu
Minimal Composite Higgs Model with Light Bosons
33 pages, latex. Corrections in eqs. 3.21, 3.23, 4.1, 4.5-10. One figure added
Phys.Rev. D63 (2001) 015004
10.1103/PhysRevD.63.015004
FERMILAB-PUB-99-234-T
hep-ph
null
We analyze a composite Higgs model with the minimal content that allows a light Standard-Model-like Higgs boson, potentially just above the current LEP limit. The Higgs boson is a bound state made up of the top quark and a heavy vector-like quark. The model predicts that only one other bound state may be lighter than...
[ { "created": "Tue, 17 Aug 1999 22:54:33 GMT", "version": "v1" }, { "created": "Wed, 15 Sep 1999 21:08:34 GMT", "version": "v2" } ]
2009-10-31
[ [ "Dobrescu", "Bogdan A.", "" ] ]
We analyze a composite Higgs model with the minimal content that allows a light Standard-Model-like Higgs boson, potentially just above the current LEP limit. The Higgs boson is a bound state made up of the top quark and a heavy vector-like quark. The model predicts that only one other bound state may be lighter than t...
0911.3694
Xiang Liu
Xiang Liu, Zhi-Gang Luo and Zhi-Feng Sun
X(3915) and X(4350) as new members in P-wave charmonium family
4 pages, 2 figures, 2 tables. More references and discussions added, typos corrected. Accepted for publication in Phys. Rev. Lett.
Phys.Rev.Lett.104:122001,2010
10.1103/PhysRevLett.104.122001
null
hep-ph hep-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The analysis of the mass spectrum and the calculation of the strong decay of P-wave charmonium states strongly support to explain the newly observed X(3915) and X(4350) as new members in P-wave charmonium family, i.e., $\chi_{c0}^\prime$ for X(3915) and $\chi_{c2}^{\prime\prime}$ for X(4350). Under the P-wave charmon...
[ { "created": "Thu, 19 Nov 2009 13:52:52 GMT", "version": "v1" }, { "created": "Sun, 3 Jan 2010 07:52:57 GMT", "version": "v2" }, { "created": "Sat, 6 Mar 2010 08:27:02 GMT", "version": "v3" } ]
2010-04-06
[ [ "Liu", "Xiang", "" ], [ "Luo", "Zhi-Gang", "" ], [ "Sun", "Zhi-Feng", "" ] ]
The analysis of the mass spectrum and the calculation of the strong decay of P-wave charmonium states strongly support to explain the newly observed X(3915) and X(4350) as new members in P-wave charmonium family, i.e., $\chi_{c0}^\prime$ for X(3915) and $\chi_{c2}^{\prime\prime}$ for X(4350). Under the P-wave charmoniu...
hep-ph/0008328
Shinji Tsujikawa
Bruce A. Bassett (Portsmouth), Shinji Tsujikawa (Waseda)
Inflationary preheating and primordial black holes
7 pages, 6 figures. Fig 6 is added to show the weak dependence of the mass variance on the initial condition
Phys.Rev. D63 (2001) 123503
10.1103/PhysRevD.63.123503
RCG-00/27, WUAP-00/22
hep-ph astro-ph gr-qc hep-th
null
Preheating after inflation may over-produce primordial black holes (PBH's) in many regions of parameter space. As an example we study two-field models with a massless self-interacting inflaton, taking into account second order field and metric backreaction effects as spatial averages. We find that a complex quilt of ...
[ { "created": "Thu, 31 Aug 2000 09:09:09 GMT", "version": "v1" }, { "created": "Thu, 11 Jan 2001 04:28:30 GMT", "version": "v2" } ]
2009-10-31
[ [ "Bassett", "Bruce A.", "", "Portsmouth" ], [ "Tsujikawa", "Shinji", "", "Waseda" ] ]
Preheating after inflation may over-produce primordial black holes (PBH's) in many regions of parameter space. As an example we study two-field models with a massless self-interacting inflaton, taking into account second order field and metric backreaction effects as spatial averages. We find that a complex quilt of pa...
1708.02047
Kimberley Keri Vos
Rebecca Klein, Thomas Mannel, Javier Virto and K. Keri Vos
CP Violation in Multibody $B$ Decays from QCD Factorization
17 pages, 6 figures, added references
JHEP 10, 117 (2017)
10.1007/JHEP10(2017)117
SI-HEP-2017-15, QFET-2017-13, MIT-CTP-4926, NIOBE-2017-03, TUM-1095/17
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We test a data-driven approach based on QCD factorization for charmless three-body $B$-decays by confronting it to measurements of CP violation in $B^- \to \pi^- \pi^+ \pi^-$. While some of the needed non-perturbative objects can be directly extracted from data, some others can, so far, only be modelled. Although thi...
[ { "created": "Mon, 7 Aug 2017 09:14:33 GMT", "version": "v1" }, { "created": "Fri, 20 Oct 2017 13:57:35 GMT", "version": "v2" } ]
2017-10-23
[ [ "Klein", "Rebecca", "" ], [ "Mannel", "Thomas", "" ], [ "Virto", "Javier", "" ], [ "Vos", "K. Keri", "" ] ]
We test a data-driven approach based on QCD factorization for charmless three-body $B$-decays by confronting it to measurements of CP violation in $B^- \to \pi^- \pi^+ \pi^-$. While some of the needed non-perturbative objects can be directly extracted from data, some others can, so far, only be modelled. Although this ...
hep-ph/0509312
Leonard Gamberg
Leonard P. Gamberg and Gary R. Goldstein
Transversity Properties of Quarks and Hadrons in SIDIS and Drell-Yan
4 pages, 8 figures. To appear in the proceedings of the XIII International Workshop on Deep Inelastic Scattering (DIS 2005, Madison)
null
10.1063/1.2122192
null
hep-ph
null
We consider the leading twist $T$-odd contributions as the dominant source of the azimuthal and transverse single spin asymmetries in SIDIS and dilepton production in Drell-Yan Scattering. These asymmetries contain information on the distribution of quark transverse spin in (un)polarized protons. In the spectator fra...
[ { "created": "Tue, 27 Sep 2005 18:18:30 GMT", "version": "v1" } ]
2015-06-25
[ [ "Gamberg", "Leonard P.", "" ], [ "Goldstein", "Gary R.", "" ] ]
We consider the leading twist $T$-odd contributions as the dominant source of the azimuthal and transverse single spin asymmetries in SIDIS and dilepton production in Drell-Yan Scattering. These asymmetries contain information on the distribution of quark transverse spin in (un)polarized protons. In the spectator frame...
2406.08143
Cornelis J.G. Mommers
Cornelis J.G. Mommers, Marc Vanderhaeghen
Constraining the axial-vector X17 interpretation with ${}^{12}$C data
1 figure
null
null
null
hep-ph nucl-th
http://creativecommons.org/licenses/by/4.0/
Recent findings of an unexpected, narrow resonance in the $e^+e^-$ decay spectra of excited states of $^8$Be, $^4$He and $^{12}$C by the ATOMKI collaboration have received considerable experimental and theoretical attention, whereby a new, 17-MeV vector-like or axial-vector-like boson termed X17 was conjectured as an...
[ { "created": "Wed, 12 Jun 2024 12:34:44 GMT", "version": "v1" } ]
2024-06-13
[ [ "Mommers", "Cornelis J. G.", "" ], [ "Vanderhaeghen", "Marc", "" ] ]
Recent findings of an unexpected, narrow resonance in the $e^+e^-$ decay spectra of excited states of $^8$Be, $^4$He and $^{12}$C by the ATOMKI collaboration have received considerable experimental and theoretical attention, whereby a new, 17-MeV vector-like or axial-vector-like boson termed X17 was conjectured as an e...
hep-ph/9809350
null
Ignazio Scimemi
NLO corrections to Delta F=2 effective Hamiltonians and SUSY contribution to FCNC
4 pages. Talk given at International Euroconference on Quantum Chromodynamics (QCD98), Montpellier, France, 2-8 july 1998. Submitted to Nucl. Phys. B (Proc. Suppl.)
Nucl.Phys.Proc.Suppl.74:243-246,1999
10.1016/S0920-5632(99)00172-3
null
hep-ph
null
The most general QCD-NLO Anomalous-Dimension Matrix of all four-fermion dimension six Delta F=2 operators is presented. Two applications of this Anomalous-Dimension Matrix to the study of SUSY contribution to K- Kbar mixing are also discussed.
[ { "created": "Sat, 12 Sep 1998 13:31:06 GMT", "version": "v1" } ]
2008-11-26
[ [ "Scimemi", "Ignazio", "" ] ]
The most general QCD-NLO Anomalous-Dimension Matrix of all four-fermion dimension six Delta F=2 operators is presented. Two applications of this Anomalous-Dimension Matrix to the study of SUSY contribution to K- Kbar mixing are also discussed.
1402.3087
Tai Li
Tai Li and Yu-Feng Zhou
Strongly first order phase transition in the singlet fermionic dark matter model after LUX
37 pages, 9 figures; v4: the version accepted by JHEP
null
10.1007/JHEP07(2014)006
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate an extension of the standard model (SM) with a singlet fermionic dark matter (DM) particle which interacts with the SM sector through a real singlet scalar. The presence of a new scalar provides the possibility of generating a strongly first order phase transition needed for electroweak baryogenesis. T...
[ { "created": "Thu, 13 Feb 2014 11:02:35 GMT", "version": "v1" }, { "created": "Mon, 17 Feb 2014 14:06:15 GMT", "version": "v2" }, { "created": "Mon, 23 Jun 2014 09:22:30 GMT", "version": "v3" }, { "created": "Tue, 24 Jun 2014 11:46:54 GMT", "version": "v4" } ]
2015-06-18
[ [ "Li", "Tai", "" ], [ "Zhou", "Yu-Feng", "" ] ]
We investigate an extension of the standard model (SM) with a singlet fermionic dark matter (DM) particle which interacts with the SM sector through a real singlet scalar. The presence of a new scalar provides the possibility of generating a strongly first order phase transition needed for electroweak baryogenesis. Tak...
1108.0890
Feng Feng
Juan Zhang, Hairong Dong, and Feng Feng
Exclusive decay of P-wave Bottomonium into double J/\psi
16 pages, 2 figures, published version. arXiv admin note: text overlap with arXiv:0912.5498 and arXiv:hep-ph/0611130v2
null
10.1103/PhysRevD.84.094031
Phys. Rev. D 84, 094031 (2011)
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the order-v^2 relativistic correction of J/\psi, including electromagnetic correction, to \chi_{bJ}-> J/\psi J/\psi, in the framework of NRQCD factorization formula. The relativistic order-v^2 effect is found to increase the lower-order prediction for the decay width by about 10%, while the electromagnet...
[ { "created": "Wed, 3 Aug 2011 16:47:00 GMT", "version": "v1" }, { "created": "Fri, 5 Aug 2011 16:52:46 GMT", "version": "v2" }, { "created": "Mon, 8 Aug 2011 14:27:03 GMT", "version": "v3" }, { "created": "Wed, 30 Nov 2011 11:33:05 GMT", "version": "v4" } ]
2012-04-01
[ [ "Zhang", "Juan", "" ], [ "Dong", "Hairong", "" ], [ "Feng", "Feng", "" ] ]
We calculate the order-v^2 relativistic correction of J/\psi, including electromagnetic correction, to \chi_{bJ}-> J/\psi J/\psi, in the framework of NRQCD factorization formula. The relativistic order-v^2 effect is found to increase the lower-order prediction for the decay width by about 10%, while the electromagnetis...
hep-ph/0301199
Juergen Wentz
J. Wentz, I.M. Brancus, A. Bercuci, D. Heck, J. Oehlschl\"ager, H. Rebel, B. Vulpescu
Simulation of Atmospheric Muon and Neutrino Fluxes with CORSIKA
revtex, 19 pages, 19 Postscript figures, submitted to Phys. Rev. D
Phys.Rev. D67 (2003) 073020
10.1103/PhysRevD.67.073020
null
hep-ph
null
The fluxes of atmospheric muons and neutrinos are calculated by a three dimensional Monte Carlo simulation with the air shower code CORSIKA using the hadronic interaction models DPMJET, VENUS, GHEISHA, and UrQMD. For the simulation of low energy primary particles the original CORSIKA has been extended by a parametriz...
[ { "created": "Thu, 23 Jan 2003 12:36:35 GMT", "version": "v1" }, { "created": "Mon, 3 Feb 2003 15:57:04 GMT", "version": "v2" } ]
2016-08-16
[ [ "Wentz", "J.", "" ], [ "Brancus", "I. M.", "" ], [ "Bercuci", "A.", "" ], [ "Heck", "D.", "" ], [ "Oehlschläger", "J.", "" ], [ "Rebel", "H.", "" ], [ "Vulpescu", "B.", "" ] ]
The fluxes of atmospheric muons and neutrinos are calculated by a three dimensional Monte Carlo simulation with the air shower code CORSIKA using the hadronic interaction models DPMJET, VENUS, GHEISHA, and UrQMD. For the simulation of low energy primary particles the original CORSIKA has been extended by a parametrizat...
hep-ph/0210303
Mark Strikman
L. Frankfurt (TAU), M. Strikman (PSU), M. Zhalov (PNPI)
Predictions of the Generalized Glauber Model for the coherent $\rho$-production at RHIC and the STAR data
a typo after Eq.6 is corrected
Phys.Rev.C67:034901,2003
10.1103/PhysRevC.67.034901
null
hep-ph nucl-ex nucl-th
null
We calculate the rapidity distribution and the total cross section of coherent and incoherent $\rho$-production in the heavy ion ultraperipheral collisions (UPC) at $\surd s_{NN}=130$ GeV using the generalized vector dominance model(GVDM) and the Gribov- Glauber approach. We find the coherent cross section of $\rho $...
[ { "created": "Wed, 23 Oct 2002 13:05:36 GMT", "version": "v1" }, { "created": "Thu, 24 Oct 2002 15:07:50 GMT", "version": "v2" }, { "created": "Tue, 10 Dec 2002 18:47:06 GMT", "version": "v3" } ]
2011-07-19
[ [ "Frankfurt", "L.", "", "TAU" ], [ "Strikman", "M.", "", "PSU" ], [ "Zhalov", "M.", "", "PNPI" ] ]
We calculate the rapidity distribution and the total cross section of coherent and incoherent $\rho$-production in the heavy ion ultraperipheral collisions (UPC) at $\surd s_{NN}=130$ GeV using the generalized vector dominance model(GVDM) and the Gribov- Glauber approach. We find the coherent cross section of $\rho $-p...
1008.0917
Stefan Groote
S. Groote, H. Liivat, I. Ots
Symmetries and similarities for spin orientation parameters in e^+ e^- -> ZH, Z\gamma, ZZ at SM thresholds
16 pages, 3 figures, published version
Nucl.Phys.B843:213-222,2010
10.1016/j.nuclphysb.2010.10.002
MZ-TH/10-29
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the spin orentation of the final Z bosons for the processes in the Standard Model. We demonstrate that at the threshold energies of these processes the analytical expressions for the Z boson polarization vectors and alignment tensors coincide (e^+ e^- -> ZH, Z\gamma) or are very similar (e^+ e^- -> ZZ). I...
[ { "created": "Thu, 5 Aug 2010 06:27:03 GMT", "version": "v1" }, { "created": "Thu, 28 Oct 2010 07:05:30 GMT", "version": "v2" } ]
2011-03-28
[ [ "Groote", "S.", "" ], [ "Liivat", "H.", "" ], [ "Ots", "I.", "" ] ]
We consider the spin orentation of the final Z bosons for the processes in the Standard Model. We demonstrate that at the threshold energies of these processes the analytical expressions for the Z boson polarization vectors and alignment tensors coincide (e^+ e^- -> ZH, Z\gamma) or are very similar (e^+ e^- -> ZZ). In ...
1212.1304
Victor Chernyak
Victor L. Chernyak
Hard two photon processes \gamma\gamma --> M_2 M_1 in QCD
19 pages, 22 figures, talk given at the Taipei International Workshop "QCD in two photon processes", 2 - 4 October 2012, Taipei, Taiwan
null
null
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/3.0/
A short review of leading term QCD predictions vs those of the handbag model for large angle cross sections \gamma\gamma --> P_2 P_1 (P is the pseudoscalar meson \pi^{\pm,o}, K^{\pm,o}, \eta), and for \gamma\gamma --> V_2 V_1 (V is the neutral vector meson \rho^o, \omega, \phi), in comparison with Belle Collaboration...
[ { "created": "Thu, 6 Dec 2012 12:05:42 GMT", "version": "v1" } ]
2012-12-07
[ [ "Chernyak", "Victor L.", "" ] ]
A short review of leading term QCD predictions vs those of the handbag model for large angle cross sections \gamma\gamma --> P_2 P_1 (P is the pseudoscalar meson \pi^{\pm,o}, K^{\pm,o}, \eta), and for \gamma\gamma --> V_2 V_1 (V is the neutral vector meson \rho^o, \omega, \phi), in comparison with Belle Collaboration m...
2203.00702
Julian Heeck
Julian Heeck, Robert Szafron, Yuichi Uesaka
Isotope dependence of muon-to-electron conversion
13 pages, matches NPB version; table included as ancillary file
Nucl. Phys. B 980 (2022) 115833
10.1016/j.nuclphysb.2022.115833
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The lepton-flavor-violating conversion of a muon into an electron in the field of a nucleus is one of the most sensitive probes of physics beyond the Standard Model and the experiments Mu2e, COMET, and DeeMe will explore uncharted terrain in the near future. An observation of this $\mu^-\to e^-$ conversion process op...
[ { "created": "Tue, 1 Mar 2022 19:00:08 GMT", "version": "v1" }, { "created": "Mon, 16 May 2022 19:26:36 GMT", "version": "v2" } ]
2022-05-18
[ [ "Heeck", "Julian", "" ], [ "Szafron", "Robert", "" ], [ "Uesaka", "Yuichi", "" ] ]
The lepton-flavor-violating conversion of a muon into an electron in the field of a nucleus is one of the most sensitive probes of physics beyond the Standard Model and the experiments Mu2e, COMET, and DeeMe will explore uncharted terrain in the near future. An observation of this $\mu^-\to e^-$ conversion process open...
1605.07164
Le Tho Hue
K. H. Phan, H.T. Hung, L.T. Hue
One loop contributions to neutral Higgs decay h-->mu tau
Improved version accepted by PTEP. New discussions and references are added
Prog. Theor. Exp. Phys. (2016) 113B03
10.1093/ptep/ptw158
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In calculating one-loop contributions to amplitudes of the lepton-flavor violating decays of the neutral Higgses (LFVHD) to different flavor charged leptons, the analytic expressions can be written in term of Passarino-Veltman functions. Then, they can be computed numerically by Looptools [1]. Another approach is usi...
[ { "created": "Mon, 23 May 2016 19:56:07 GMT", "version": "v1" }, { "created": "Thu, 27 Oct 2016 03:37:12 GMT", "version": "v2" } ]
2016-11-17
[ [ "Phan", "K. H.", "" ], [ "Hung", "H. T.", "" ], [ "Hue", "L. T.", "" ] ]
In calculating one-loop contributions to amplitudes of the lepton-flavor violating decays of the neutral Higgses (LFVHD) to different flavor charged leptons, the analytic expressions can be written in term of Passarino-Veltman functions. Then, they can be computed numerically by Looptools [1]. Another approach is using...
1909.04994
Xun Chen Mr
Yan-Qing Zhao, Zhou-Run Zhu and Xun Chen
The effect of gluon condensate on imaginary potential and thermal width from holography
6 pages, 6 figures
null
10.1140/epja/s10050-020-00072-5
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
By the use of the gauge/gravity duality, we calculate the imaginary part of heavy quarkonium potential and thermal width with the effect of gluon condensate which is absent in AdS$_{5}$ background. Our results show that the dropping gluon condensate reduces the absolute value of imaginary potential and therefore decr...
[ { "created": "Wed, 11 Sep 2019 12:05:00 GMT", "version": "v1" }, { "created": "Sat, 2 Nov 2019 10:09:25 GMT", "version": "v2" }, { "created": "Tue, 10 Mar 2020 02:30:41 GMT", "version": "v3" } ]
2020-03-18
[ [ "Zhao", "Yan-Qing", "" ], [ "Zhu", "Zhou-Run", "" ], [ "Chen", "Xun", "" ] ]
By the use of the gauge/gravity duality, we calculate the imaginary part of heavy quarkonium potential and thermal width with the effect of gluon condensate which is absent in AdS$_{5}$ background. Our results show that the dropping gluon condensate reduces the absolute value of imaginary potential and therefore decrea...
0903.4409
James Gainer
R. C. Cotta, J. S. Gainer, J. L. Hewett, T. G. Rizzo
Dark Matter in the MSSM
27 pages, 19 figs; Journal version in NJP issue "Focus on Dark Matter and Particle Physics". Previous version had 26 pages, 19 figures. Text and some figures have been updated
New J.Phys.11:105026,2009
10.1088/1367-2630/11/10/105026
SLAC-PUB-13562
hep-ph astro-ph.CO hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We have recently examined a large number of points in the parameter space of the phenomenological MSSM, the 19-dimensional parameter space of the CP-conserving MSSM with Minimal Flavor Violation. We determined whether each of these points satisfied existing experimental and theoretical constraints. This analysis prov...
[ { "created": "Wed, 25 Mar 2009 17:53:06 GMT", "version": "v1" }, { "created": "Sat, 24 Oct 2009 02:01:28 GMT", "version": "v2" } ]
2014-11-18
[ [ "Cotta", "R. C.", "" ], [ "Gainer", "J. S.", "" ], [ "Hewett", "J. L.", "" ], [ "Rizzo", "T. G.", "" ] ]
We have recently examined a large number of points in the parameter space of the phenomenological MSSM, the 19-dimensional parameter space of the CP-conserving MSSM with Minimal Flavor Violation. We determined whether each of these points satisfied existing experimental and theoretical constraints. This analysis provid...
1810.00016
Mikhail Mikhasenko
JPAC Collaboration: M.Mikhasenko, A.Pilloni, M.Albaladejo, C.Fernandez-Ramirez, A.Jackura, V.Mathieu, J.Nys, A.Rodas, B.Ketzer, A.P.Szczepaniak
Pole position of the $a_1(1260)$ from $\tau$-decay
20 pages, 22 figures
Phys. Rev. D 98, 096021 (2018)
10.1103/PhysRevD.98.096021
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We perform an analysis of the three-pion system with quantum numbers $J^{PC}=1^{++}$ produced in the weak decay of $\tau$ leptons. The interaction is known to be dominated by the axial meson $a_1(1260)$. We build a model based on approximate three-body unitarity and fix the free parameters by fitting it to the ALEPH ...
[ { "created": "Fri, 28 Sep 2018 18:01:15 GMT", "version": "v1" }, { "created": "Thu, 10 Jan 2019 09:18:13 GMT", "version": "v2" } ]
2019-01-11
[ [ "JPAC Collaboration", "", "" ], [ "Mikhasenko", "M.", "" ], [ "Pilloni", "A.", "" ], [ "Albaladejo", "M.", "" ], [ "Fernandez-Ramirez", "C.", "" ], [ "Jackura", "A.", "" ], [ "Mathieu", "V.", "" ], [ ...
We perform an analysis of the three-pion system with quantum numbers $J^{PC}=1^{++}$ produced in the weak decay of $\tau$ leptons. The interaction is known to be dominated by the axial meson $a_1(1260)$. We build a model based on approximate three-body unitarity and fix the free parameters by fitting it to the ALEPH da...
hep-ph/0211152
David Rayner
V. Di Clemente, S. F. King and D. A. J. Rayner
Supersymmetric Higgs Bosons in a 5D Orbifold Model
5 pages, 3 eps figures, ws-procs9x6.cls included. Based on a talk given by V.D.C. at 1st International Conference on String Phenomenology, Oxford, England, 6-11 Jul 2002
null
null
SHEP 02-31
hep-ph
null
We analyze the phenomenology of the Higgs sector in a 5D model compactified on an $S_1/Z_2$ orbifold with a compactification scale $M_C \sim {\mathcal O}(TeV)$ where supersymmetry breaking is localized on a brane at one of the fixed points. We show that the conventional MSSM Higgs boson mass bounds in 4D can be viola...
[ { "created": "Mon, 11 Nov 2002 14:38:45 GMT", "version": "v1" } ]
2007-05-23
[ [ "Di Clemente", "V.", "" ], [ "King", "S. F.", "" ], [ "Rayner", "D. A. J.", "" ] ]
We analyze the phenomenology of the Higgs sector in a 5D model compactified on an $S_1/Z_2$ orbifold with a compactification scale $M_C \sim {\mathcal O}(TeV)$ where supersymmetry breaking is localized on a brane at one of the fixed points. We show that the conventional MSSM Higgs boson mass bounds in 4D can be violate...
1509.04164
Junya Nakamura
Junya Nakamura
A simple merging algorithm for jet angular correlation studies
15 pages, 2 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A tree level merging algorithm which guarantees the leading order (LO) accuracy of angular correlations between jets is proposed and studied. The algorithm is designed so that n-jet events are generated exclusively according to the LO n-parton production cross section and each of the n-jet is close to each of the n-p...
[ { "created": "Mon, 14 Sep 2015 15:43:12 GMT", "version": "v1" } ]
2015-09-15
[ [ "Nakamura", "Junya", "" ] ]
A tree level merging algorithm which guarantees the leading order (LO) accuracy of angular correlations between jets is proposed and studied. The algorithm is designed so that n-jet events are generated exclusively according to the LO n-parton production cross section and each of the n-jet is close to each of the n-par...
hep-ph/9903421
A. Khodjamirian
A. Khodjamirian, R. R\"uckl, S. Weinzierl, O.Yakovlev
Perturbative QCD Correction to the Light-Cone Sum Rule for the $B^*B\pi $ and $D^*D\pi$ Couplings
11 pages, 1 figure, Latex, epsfig
Phys.Lett. B457 (1999) 245-252
10.1016/S0370-2693(99)00518-3
WUE-ITP-98-043
hep-ph
null
The $B^*B\pi$ and $D^*D\pi$ couplings have previously been derived from a QCD light-cone sum rule in leading order. Here, we describe the calculation of the $O(\alpha_s)$ correction to the twist 2 term of this sum rule. The result is used for a first next-to-leading order analysis. We obtain $g_{B^*B\pi}= 22\pm 7$ an...
[ { "created": "Sat, 20 Mar 1999 20:44:24 GMT", "version": "v1" } ]
2009-10-31
[ [ "Khodjamirian", "A.", "" ], [ "Rückl", "R.", "" ], [ "Weinzierl", "S.", "" ], [ "Yakovlev", "O.", "" ] ]
The $B^*B\pi$ and $D^*D\pi$ couplings have previously been derived from a QCD light-cone sum rule in leading order. Here, we describe the calculation of the $O(\alpha_s)$ correction to the twist 2 term of this sum rule. The result is used for a first next-to-leading order analysis. We obtain $g_{B^*B\pi}= 22\pm 7$ and ...
hep-ph/0202013
Subir Sarkar
Subir Sarkar (Oxford U.)
Ultra-high energy cosmic rays and new physics
15 pages (LaTeX), 6 figures; Invited talk at COSMO-01 Workshop, Rovaniemi, Finland, August 30-September 4, 2001; Changes: typos fixed, references added
null
null
null
hep-ph astro-ph
null
Cosmic rays with energies beyond the Greisen-Zatsepin-Kuzmin `cutoff' at $\sim 4 \times 10^{10}$ GeV pose a conundrum, the solution of which requires either drastic revision of our astrophysical understanding, or new physics beyond the Standard Model. Nucleons of such energies must originate within the local superclu...
[ { "created": "Sun, 3 Feb 2002 23:47:20 GMT", "version": "v1" }, { "created": "Fri, 8 Feb 2002 16:09:32 GMT", "version": "v2" } ]
2007-05-23
[ [ "Sarkar", "Subir", "", "Oxford U." ] ]
Cosmic rays with energies beyond the Greisen-Zatsepin-Kuzmin `cutoff' at $\sim 4 \times 10^{10}$ GeV pose a conundrum, the solution of which requires either drastic revision of our astrophysical understanding, or new physics beyond the Standard Model. Nucleons of such energies must originate within the local superclust...
1904.08271
Wei-Hong Liang
Sheng-Juan Jiang, S. Sakai, Wei-Hong Liang, E. Oset
The $\chi_{cJ}$ decay to $\phi K^* \bar K, \phi h_1(1380)$ testing the nature of axial vector meson resonances
11 pages, 3 figures; V2: version accepted for publication in Phys. Lett. B
null
10.1016/j.physletb.2019.134831
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We perform a theoretical study of the $\chi_{cJ} \to \phi K^* \bar K \to \phi K\pi \bar K$ reaction taking into account the $K^* \bar K$ final state interaction, which in the chiral unitary approach is responsible, together with its coupled channels, for the formation of the low lying axial vector mesons, in this cas...
[ { "created": "Wed, 17 Apr 2019 13:43:30 GMT", "version": "v1" }, { "created": "Wed, 7 Aug 2019 15:45:07 GMT", "version": "v2" } ]
2019-08-14
[ [ "Jiang", "Sheng-Juan", "" ], [ "Sakai", "S.", "" ], [ "Liang", "Wei-Hong", "" ], [ "Oset", "E.", "" ] ]
We perform a theoretical study of the $\chi_{cJ} \to \phi K^* \bar K \to \phi K\pi \bar K$ reaction taking into account the $K^* \bar K$ final state interaction, which in the chiral unitary approach is responsible, together with its coupled channels, for the formation of the low lying axial vector mesons, in this case ...
hep-ph/0209310
Tai-Fu Feng
Tai-Fu Feng, Xue-Qian Li, Yan-An Luo
Neutrinoless Double Beta Decay in Supersymmetric Seesaw model
latex, 25 pages, include 5 figures, final version in Phys. Rev. D
Phys.Rev. D66 (2002) 056011
10.1103/PhysRevD.66.056011
BIHEP-TH-2002-33
hep-ph
null
Inspired by the recent HEIDELBERG-MOSCOW double beta decay experiment, we discuss the neutrinoless double beta decay in the supersymmetric seesaw model. Our numerical analysis indicates that we can naturally explain the data of the observed neutrinoless double beta decay, as well as that of the solar and atmospheric ...
[ { "created": "Thu, 26 Sep 2002 02:24:23 GMT", "version": "v1" } ]
2009-11-07
[ [ "Feng", "Tai-Fu", "" ], [ "Li", "Xue-Qian", "" ], [ "Luo", "Yan-An", "" ] ]
Inspired by the recent HEIDELBERG-MOSCOW double beta decay experiment, we discuss the neutrinoless double beta decay in the supersymmetric seesaw model. Our numerical analysis indicates that we can naturally explain the data of the observed neutrinoless double beta decay, as well as that of the solar and atmospheric ne...
2206.01148
Ziyan Yuwen
Shao-Jiang Wang, Zi-Yan Yuwen
The energy budget of cosmological first-order phase transitions beyond the bag equation of state
34 pages, 9 figures
JCAP10(2022)047
10.1088/1475-7516/2022/10/047
null
hep-ph astro-ph.CO gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The stochastic gravitational-wave backgrounds (SGWBs) from the cosmological first-order phase transitions (FOPTs) serve as a promising probe for the new physics beyond the standard model of particle physics. When most of the bubble walls collide with each other long after they had reached the terminal wall velocity, ...
[ { "created": "Thu, 2 Jun 2022 16:58:32 GMT", "version": "v1" }, { "created": "Sat, 15 Oct 2022 10:54:10 GMT", "version": "v2" } ]
2022-10-18
[ [ "Wang", "Shao-Jiang", "" ], [ "Yuwen", "Zi-Yan", "" ] ]
The stochastic gravitational-wave backgrounds (SGWBs) from the cosmological first-order phase transitions (FOPTs) serve as a promising probe for the new physics beyond the standard model of particle physics. When most of the bubble walls collide with each other long after they had reached the terminal wall velocity, th...
1411.2843
Max Zoller
Max F. Zoller
Standard Model beta-functions to three-loop order and vacuum stability
Contribution to the proceedings of the 42nd ITEP Winter School of Physics, Moscow
null
null
TTP14-030, SFB/CPP-14-87
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Since the discovery of a Higgs particle the effective Higgs potential of the Standard Model or extensions and the stability of the ground state corresponding to its minimum at the electroweak scale have been subject to a lot of investigation. The vacuum expectation value of the scalar SU(2) doublet field in the Stand...
[ { "created": "Tue, 11 Nov 2014 15:05:25 GMT", "version": "v1" } ]
2014-11-12
[ [ "Zoller", "Max F.", "" ] ]
Since the discovery of a Higgs particle the effective Higgs potential of the Standard Model or extensions and the stability of the ground state corresponding to its minimum at the electroweak scale have been subject to a lot of investigation. The vacuum expectation value of the scalar SU(2) doublet field in the Standar...
1911.03111
Rafiqul Rahaman
Rafiqul Rahaman and Ritesh K. Singh
Unravelling the anomalous gauge boson couplings in $ZW^\pm$ production at the LHC and the role of spin-$1$ polarizations
32 pages, 13 figures and 6 tables
null
10.1007/JHEP04(2020)075
null
hep-ph hep-ex hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the anomalous triple gauge boson couplings (aTGC) in $ZW^\pm$ production in $3l$ + missing $E_T$ channel at the LHC for $\sqrt{s}=13$ TeV. We use cross sections, azimuthal asymmetry, forward-backward asymmetry, and polarization asymmetries of $Z$ and reconstructed $W$ to estimate simultaneous limits on the a...
[ { "created": "Fri, 8 Nov 2019 08:01:28 GMT", "version": "v1" }, { "created": "Wed, 15 Jul 2020 07:52:12 GMT", "version": "v2" } ]
2020-07-16
[ [ "Rahaman", "Rafiqul", "" ], [ "Singh", "Ritesh K.", "" ] ]
We study the anomalous triple gauge boson couplings (aTGC) in $ZW^\pm$ production in $3l$ + missing $E_T$ channel at the LHC for $\sqrt{s}=13$ TeV. We use cross sections, azimuthal asymmetry, forward-backward asymmetry, and polarization asymmetries of $Z$ and reconstructed $W$ to estimate simultaneous limits on the ano...
hep-ph/9605393
Andreas Blumhofer
Andreas Blumhofer and Marcus Hutter
Family Structure from Periodic Solutions of an Improved Gap Equation
19 pages, 8 figures
Nucl.Phys. B484 (1997) 80-96; Erratum-ibid. B494 (1997) 485
10.1016/S0550-3213(97)00228-9
LMU-05/96
hep-ph
null
Fermion mass models usually contain a horizontal symmetry and therefore fail to predict the exponential mass spectrum of the Standard Model in a natural way. In dynamical symmetry breaking there are different concepts to introduce a fermion mass spectrum, which automatically has the desired hierarchy. In constructing...
[ { "created": "Fri, 24 May 1996 14:11:56 GMT", "version": "v1" } ]
2009-10-28
[ [ "Blumhofer", "Andreas", "" ], [ "Hutter", "Marcus", "" ] ]
Fermion mass models usually contain a horizontal symmetry and therefore fail to predict the exponential mass spectrum of the Standard Model in a natural way. In dynamical symmetry breaking there are different concepts to introduce a fermion mass spectrum, which automatically has the desired hierarchy. In constructing a...
0810.3889
Chong Sheng Li
Jia Jun Zhang, Chong Sheng Li, Jun Gao, Hao Zhang, Zhao Li, C.-P. Yuan and Tzu-Chiang Yuan
Next-to-leading order QCD corrections to the top quark decay via model-independent FCNC couplings
4 pages, 3 figures, minor changes, typos corrected
Phys.Rev.Lett.102:072001,2009
10.1103/PhysRevLett.102.072001
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
D0 and CDF collaborations at the Fermilab Tevatron have searched for non-standard-model single top-quark production and set upper limits on the anomalous top quark flavor-changing neutral current (FCNC) couplings $\kappa^g_{tc}/\Lambda$ and $\kappa^g_{tu}/\Lambda$ using the measurement of total cross section calculat...
[ { "created": "Tue, 21 Oct 2008 18:10:05 GMT", "version": "v1" }, { "created": "Wed, 22 Oct 2008 16:39:34 GMT", "version": "v2" }, { "created": "Wed, 5 Nov 2008 10:25:07 GMT", "version": "v3" }, { "created": "Sat, 3 Jan 2009 14:55:54 GMT", "version": "v4" } ]
2009-02-27
[ [ "Zhang", "Jia Jun", "" ], [ "Li", "Chong Sheng", "" ], [ "Gao", "Jun", "" ], [ "Zhang", "Hao", "" ], [ "Li", "Zhao", "" ], [ "Yuan", "C. -P.", "" ], [ "Yuan", "Tzu-Chiang", "" ] ]
D0 and CDF collaborations at the Fermilab Tevatron have searched for non-standard-model single top-quark production and set upper limits on the anomalous top quark flavor-changing neutral current (FCNC) couplings $\kappa^g_{tc}/\Lambda$ and $\kappa^g_{tu}/\Lambda$ using the measurement of total cross section calculated...
1308.1426
Thomas J. Weiler
Thomas J. Weiler (Vanderbilt University)
Likely Dominance of WIMP Annihilation to Fermion Pair + W/Z
Talk presented at ICRC2013, July 2-9, Rio de Janeiro, Brazil; 4 pages, includes two paneled figures and two tables
null
null
null
hep-ph astro-ph.CO astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Arguably, the most popular candidate for Dark Matter (DM) is a massive, stable, Majorana fermion. However, annihilation of Majorana DM to two fermions features a helicity-suppressed s-wave rate. The process radiating a gauge boson via electroweak (EW) and electromagnetic (EM) bremsstrahlung removes this s-wave suppre...
[ { "created": "Tue, 6 Aug 2013 21:37:53 GMT", "version": "v1" } ]
2013-08-08
[ [ "Weiler", "Thomas J.", "", "Vanderbilt University" ] ]
Arguably, the most popular candidate for Dark Matter (DM) is a massive, stable, Majorana fermion. However, annihilation of Majorana DM to two fermions features a helicity-suppressed s-wave rate. The process radiating a gauge boson via electroweak (EW) and electromagnetic (EM) bremsstrahlung removes this s-wave suppress...
0810.3899
Vadim Guzey
V. Guzey (Jefferson Lab), T. Teckentrup (Ruhr U., Bochum)
On the mistake in the implementation of the minimal model of the dual parameterization and resulting inability to describe the high-energy DVCS data
8 pages, 1 figure
Phys.Rev.D79:017501,2009
10.1103/PhysRevD.79.017501
JLAB-THY-08-897
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We correct the mistaken claim made in \cite{Guzey:2005ec,Guzey:2006xi} that the minimal model of the dual parameterization of nucleon generalized parton distributions (GPDs) gives a good, essentially model-independent description of high-energy data on deeply virtual Compton scattering (DVCS). In the implementation o...
[ { "created": "Tue, 21 Oct 2008 18:55:33 GMT", "version": "v1" } ]
2009-01-16
[ [ "Guzey", "V.", "", "Jefferson Lab" ], [ "Teckentrup", "T.", "", "Ruhr U., Bochum" ] ]
We correct the mistaken claim made in \cite{Guzey:2005ec,Guzey:2006xi} that the minimal model of the dual parameterization of nucleon generalized parton distributions (GPDs) gives a good, essentially model-independent description of high-energy data on deeply virtual Compton scattering (DVCS). In the implementation of ...
0811.1812
Yonglu Liu
Yong-Lu Liu and Ming-Qiu Huang
Distribution amplitudes of $\Sigma$ and $\Lambda$ and their electromagnetic form factors
40 pages, 19 figures
Nucl.Phys.A821:80-105, 2009
10.1016/j.nuclphysa.2009.02.003
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Based on QCD conformal partial wave expansion to leading order conformal spin accuracy, we present the light-cone distribution amplitudes (DAs) of $\Sigma$ and $\Lambda$ baryons up to twist 6. It is concluded that fourteen ndependent DAs are needed to describe the valence three-quark states of the baryons at small tr...
[ { "created": "Wed, 12 Nov 2008 03:44:20 GMT", "version": "v1" }, { "created": "Sat, 21 Mar 2009 04:50:12 GMT", "version": "v2" } ]
2009-03-24
[ [ "Liu", "Yong-Lu", "" ], [ "Huang", "Ming-Qiu", "" ] ]
Based on QCD conformal partial wave expansion to leading order conformal spin accuracy, we present the light-cone distribution amplitudes (DAs) of $\Sigma$ and $\Lambda$ baryons up to twist 6. It is concluded that fourteen ndependent DAs are needed to describe the valence three-quark states of the baryons at small tran...
1012.2806
Pere Masjuan
Pere Masjuan
Hunting resonance poles with Rational Approximants
8 pages, 4 figures. This letter partially covers the material presented by the author at the 15th International QCD Conference: QCD 10 (25th anniversary), Montpellier, France, 28 Jun - 3 Jul 2010 and at the Quark Confinement and the Hadron Spectrum IX, 30 August - 3 September 2010, Madrid, Spain
null
null
UGFT-279/10, CAFPE-149/10
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Based on the mathematically well defined Pad\'e Theory, a theoretically safe new procedure for the extraction of the pole mass and width of resonances is proposed. In particular, thanks to the Montessus de Ballore's theorem we are able to unfold the Second Riemann sheet of an amplitude to search the position of the r...
[ { "created": "Mon, 13 Dec 2010 17:21:06 GMT", "version": "v1" } ]
2010-12-14
[ [ "Masjuan", "Pere", "" ] ]
Based on the mathematically well defined Pad\'e Theory, a theoretically safe new procedure for the extraction of the pole mass and width of resonances is proposed. In particular, thanks to the Montessus de Ballore's theorem we are able to unfold the Second Riemann sheet of an amplitude to search the position of the res...
hep-ph/9707425
Jisuke Kubo
Tatsuo Kobayashi, Jisuke Kubo, Myriam Mondragon, George Zoupanos
Constraints on Finite Soft Supersymmetry-Breaking Terms
34 pages
Nucl.Phys. B511 (1998) 45-68
10.1016/S0550-3213(97)00765-7
Kanazawa University Report, KANAZAWA-97-12
hep-ph
null
Requiring the soft supersymmetry-breaking (SSB) parameters in finite gauge-Yukawa unified models to be finite up to and including two-loop order, we derive a two-loop sum rule for the soft scalar-masses. It is shown that this sum rule coincides with that of a certain class of string models in which the massive string...
[ { "created": "Tue, 22 Jul 1997 14:38:06 GMT", "version": "v1" } ]
2015-06-25
[ [ "Kobayashi", "Tatsuo", "" ], [ "Kubo", "Jisuke", "" ], [ "Mondragon", "Myriam", "" ], [ "Zoupanos", "George", "" ] ]
Requiring the soft supersymmetry-breaking (SSB) parameters in finite gauge-Yukawa unified models to be finite up to and including two-loop order, we derive a two-loop sum rule for the soft scalar-masses. It is shown that this sum rule coincides with that of a certain class of string models in which the massive string s...
hep-ph/0408123
Morimitsu Tanimoto
Walter Grimus, Anjan S.Joshipura, Satoru Kaneko, Lu\'is Lavoura, Hideyuki Sawanaka, Morimitsu Tanimoto
Non-vanishing $U_{e3}$ and $\cos{2 \theta_{23}}$ from a broken $Z_2$ symmetry
28 pages, 12 figures, Some discussions are revised, references are corrected, Conclusions are unchanged
Nucl.Phys.B713:151-172,2005
10.1016/j.nuclphysb.2005.01.049
UWThPh-2004-19, OCHA-PP-244
hep-ph
null
It is shown that the neutrino mass matrices in the flavour basis yielding a vanishing $U_{e3}$ are characterized by invariance under a class of $Z_2$ symmetries. A specific $Z_2$ in this class also leads to a maximal atmospheric mixing angle $\theta_{23}$. The breaking of that $Z_2$ can be parameterized by two dimens...
[ { "created": "Tue, 10 Aug 2004 05:40:27 GMT", "version": "v1" }, { "created": "Tue, 24 Aug 2004 01:15:56 GMT", "version": "v2" }, { "created": "Fri, 3 Dec 2004 09:34:24 GMT", "version": "v3" }, { "created": "Wed, 19 Jan 2005 09:22:54 GMT", "version": "v4" } ]
2016-08-16
[ [ "Grimus", "Walter", "" ], [ "Joshipura", "Anjan S.", "" ], [ "Kaneko", "Satoru", "" ], [ "Lavoura", "Luís", "" ], [ "Sawanaka", "Hideyuki", "" ], [ "Tanimoto", "Morimitsu", "" ] ]
It is shown that the neutrino mass matrices in the flavour basis yielding a vanishing $U_{e3}$ are characterized by invariance under a class of $Z_2$ symmetries. A specific $Z_2$ in this class also leads to a maximal atmospheric mixing angle $\theta_{23}$. The breaking of that $Z_2$ can be parameterized by two dimensio...
1706.07648
Olga I. Piskounova
Olga I. Piskounova
Baryon Production at LHC Experiments: Average pt of Hyperons vs. Energy
12 pages, 10 .eps figures, arXiv admin note: text overlap with arXiv:1602.08003
International Journal of Modern Physics A Vol. 35, No. 13 (2020) 2050067 (12 pages)
10.1142/S0217-75X12(05)00670
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This paper examines the transverse momentum spectra of baryons in the multi-particle production at modern colliders using Quark-Gluon String Model (QGSM). It discusses 1) the difference in \Lambda^0 hyperon spectra at antiproton-proton vs. proton-proton reactions; 2) the growth of average transverse momenta of \Lambd...
[ { "created": "Fri, 23 Jun 2017 11:49:41 GMT", "version": "v1" }, { "created": "Wed, 1 Apr 2020 13:26:19 GMT", "version": "v10" }, { "created": "Tue, 2 Jun 2020 11:15:12 GMT", "version": "v11" }, { "created": "Tue, 4 Jul 2017 10:25:10 GMT", "version": "v2" }, { "cr...
2020-06-03
[ [ "Piskounova", "Olga I.", "" ] ]
This paper examines the transverse momentum spectra of baryons in the multi-particle production at modern colliders using Quark-Gluon String Model (QGSM). It discusses 1) the difference in \Lambda^0 hyperon spectra at antiproton-proton vs. proton-proton reactions; 2) the growth of average transverse momenta of \Lambda ...
hep-ph/0412049
Cristian Pisano
M.Gl\"uck, C.Pisano, E. Reya
Probing the Perturbative NLO Parton Evolution in the Small-$x$ Region
Revised version, to appear in EPJC
Eur.Phys.J.C40:515-517,2005
10.1140/epjc/s2005-02167-3
DO-TH 2004/13
hep-ph hep-ex
null
A dedicated test of the perturbative QCD NLO parton evolution in the very small-$x$ region is performed. We find a good agreement with recent precision HERA-data for $F_2^p(x,Q^2)$, as well as with the present determination of the curvature of $F_2^p$. Characteristically, perturbative QCD evolutions result in a posit...
[ { "created": "Fri, 3 Dec 2004 15:38:19 GMT", "version": "v1" }, { "created": "Tue, 15 Feb 2005 10:24:13 GMT", "version": "v2" } ]
2009-04-15
[ [ "Glück", "M.", "" ], [ "Pisano", "C.", "" ], [ "Reya", "E.", "" ] ]
A dedicated test of the perturbative QCD NLO parton evolution in the very small-$x$ region is performed. We find a good agreement with recent precision HERA-data for $F_2^p(x,Q^2)$, as well as with the present determination of the curvature of $F_2^p$. Characteristically, perturbative QCD evolutions result in a positiv...
hep-ph/0410122
Sabine Hossenfelder
Sabine Hossenfelder
The Minimal Length and Large Extra Dimensions
18 pages, 5 figures, brief review to appear in Mod. Phys. Let. A
Mod.Phys.Lett. A19 (2004) 2727-2744
10.1142/S0217732304015919
null
hep-ph hep-th
null
Planck scale physics represents a future challenge, located between particle physics and general relativity. The Planck scale marks a threshold beyond which the old description of spacetime breaks down and conceptually new phenomena must appear. Little is known about the fundamental theory valid at Planckian energies...
[ { "created": "Fri, 8 Oct 2004 00:49:41 GMT", "version": "v1" } ]
2009-11-10
[ [ "Hossenfelder", "Sabine", "" ] ]
Planck scale physics represents a future challenge, located between particle physics and general relativity. The Planck scale marks a threshold beyond which the old description of spacetime breaks down and conceptually new phenomena must appear. Little is known about the fundamental theory valid at Planckian energies, ...
2201.08577
Tian-Xing Bai
Wei-Jie Xu, Tian-Xing Bai and Chun-Gui Duan
Atomic mass, Bjorken variable and scale dependence of quark transport coefficient in Drell-Yan process for proton incident on nucleus
arXiv admin note: text overlap with arXiv:2012.03167
Chin. Phys. C 47, (2023)
10.1088/1674-1137/acb8a4
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
By means of the nuclear parton distributions determined without the fixed-target Drell-Yan experimental data and the analytic expression of quenching weight based on BDMPS formalism, a next-to-leading order analyses are performed on the Drell-Yan differential cross section ratios from Fermilab E906 and E866 Collabora...
[ { "created": "Fri, 21 Jan 2022 07:43:49 GMT", "version": "v1" } ]
2023-02-10
[ [ "Xu", "Wei-Jie", "" ], [ "Bai", "Tian-Xing", "" ], [ "Duan", "Chun-Gui", "" ] ]
By means of the nuclear parton distributions determined without the fixed-target Drell-Yan experimental data and the analytic expression of quenching weight based on BDMPS formalism, a next-to-leading order analyses are performed on the Drell-Yan differential cross section ratios from Fermilab E906 and E866 Collaborati...
1312.0307
Toshitaka Tatsumi
T. Tatsumi, K. Nishiyama and S. Karasawa
Inhomogeneous chiral phase in the magnetic field
8 pages, 3 figures, Proc. of the 2nd International Conference on New Frontiers in Physics (ICNFP 2013)
null
10.1051/epjconf/20147100131
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Inhomogeneous chiral phase is discussed in the presence of the magnetic field. A topological aspect is pointed out for the complex order parameter, in relation to the spectral asymmetry of the Dirac operator. It induces an anomalous baryon number and extremely extends the region of the inhomogeneous chiral phase in t...
[ { "created": "Mon, 2 Dec 2013 02:40:58 GMT", "version": "v1" } ]
2015-06-18
[ [ "Tatsumi", "T.", "" ], [ "Nishiyama", "K.", "" ], [ "Karasawa", "S.", "" ] ]
Inhomogeneous chiral phase is discussed in the presence of the magnetic field. A topological aspect is pointed out for the complex order parameter, in relation to the spectral asymmetry of the Dirac operator. It induces an anomalous baryon number and extremely extends the region of the inhomogeneous chiral phase in the...
1404.7139
Andreas Papaefstathiou
Danilo Enoque Ferreira de Lima, Andreas Papaefstathiou, Michael Spannowsky
Standard Model Higgs boson pair production in the $(b\bar{b})(b\bar{b})$ final state
19 pages, 9 figures, matches published JHEP version
null
10.1007/JHEP08(2014)030
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Measuring the Higgs boson couplings as precisely as possible is one of the major goals of the High Luminosity LHC. We show that the $(b\bar{b})(b\bar{b})$ final state in Higgs boson pair production can be exploited in the boosted regime to give constraints on the trilinear Higgs boson self-coupling. In these exclusiv...
[ { "created": "Mon, 28 Apr 2014 20:00:19 GMT", "version": "v1" }, { "created": "Wed, 13 Aug 2014 15:28:34 GMT", "version": "v2" } ]
2014-08-14
[ [ "de Lima", "Danilo Enoque Ferreira", "" ], [ "Papaefstathiou", "Andreas", "" ], [ "Spannowsky", "Michael", "" ] ]
Measuring the Higgs boson couplings as precisely as possible is one of the major goals of the High Luminosity LHC. We show that the $(b\bar{b})(b\bar{b})$ final state in Higgs boson pair production can be exploited in the boosted regime to give constraints on the trilinear Higgs boson self-coupling. In these exclusive ...
1911.10596
Mikhail Vysotsky
M.A. Andreichikov, M.I. Eides, V.A. Novikov and M.I. Vysotsky
The physics of the $\eta$--$\eta'$ system versus $B^0 \rightarrow J/\Psi \ \eta (\eta')$ and $B_s \rightarrow J/\Psi \ \eta (\eta')$ decays
8 pages
null
10.1142/S0217751X20501110
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
An approach to the properties of the $\eta$--$\eta'$ system developed to solve the famous $U(1)$ problem is used to calculate the partial widths ratios to $\eta$ and $\eta'$ in the $B^0 \rightarrow J/\Psi \ \eta(\eta',\ \pi^0)$ and $B_s \rightarrow J/\Psi \ \eta(\eta')$ decays. We obtain the results in agreement with...
[ { "created": "Sun, 24 Nov 2019 19:35:10 GMT", "version": "v1" } ]
2020-08-26
[ [ "Andreichikov", "M. A.", "" ], [ "Eides", "M. I.", "" ], [ "Novikov", "V. A.", "" ], [ "Vysotsky", "M. I.", "" ] ]
An approach to the properties of the $\eta$--$\eta'$ system developed to solve the famous $U(1)$ problem is used to calculate the partial widths ratios to $\eta$ and $\eta'$ in the $B^0 \rightarrow J/\Psi \ \eta(\eta',\ \pi^0)$ and $B_s \rightarrow J/\Psi \ \eta(\eta')$ decays. We obtain the results in agreement with t...
hep-ph/0401046
Zhi-Gang Wang
Zhi-Gang Wang (CCAST, Ncepu), Wei-Min Yang (USTC) and Shao-Long Wan (USTC)
Structures of the $f_0(980)$, $a_0(980)$ mesons and the strong coupling constants $g_{f_0 K^+ K^-}$, $g_{a_0 K^+ K^-}$ with the light-cone QCD sum rules
14 pages; Revised version
Eur.Phys.J.C37:223-231,2004
10.1140/epjc/s2004-01992-0
null
hep-ph
null
In this article, with the assumption of explicit isospin violation arising from the $f_0(980)-a_0(980)$ mixing, we take the point of view that the scalar mesons $f_0(980)$ and $a_0(980)$ have both strange and non-strange quark-antiquark components and evaluate the strong coupling constants $g_{f_0 K^+ K^-}$ and $g_{a...
[ { "created": "Fri, 9 Jan 2004 02:07:12 GMT", "version": "v1" }, { "created": "Mon, 15 Mar 2004 02:11:28 GMT", "version": "v2" }, { "created": "Sun, 25 Jul 2004 02:57:38 GMT", "version": "v3" } ]
2016-09-06
[ [ "Wang", "Zhi-Gang", "", "CCAST, Ncepu" ], [ "Yang", "Wei-Min", "", "USTC" ], [ "Wan", "Shao-Long", "", "USTC" ] ]
In this article, with the assumption of explicit isospin violation arising from the $f_0(980)-a_0(980)$ mixing, we take the point of view that the scalar mesons $f_0(980)$ and $a_0(980)$ have both strange and non-strange quark-antiquark components and evaluate the strong coupling constants $g_{f_0 K^+ K^-}$ and $g_{a_0...
2110.00286
Tsuneo Uematsu
Ken Sasaki, Tsuneo Uematsu
Timelike Transition Form Factor for CP-odd Higgs Boson Production
9 pages PDFLatex, SciPost.cls used, 6 figures (12 PDFs) and 1 jpeg file, Contribution to the Proceedings of Radcor and LoopFest 2021
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We investigate the production of CP-odd Higgs boson $A^0$ associated with a real $\gamma$ in $e^+e^-$ collisions. Because of the properties of $A^0$ coupling to the other fields, the main contribution comes from the top-quark triangle loop diagrams. We obtain the timelike transition form factor which describes the pr...
[ { "created": "Fri, 1 Oct 2021 09:47:39 GMT", "version": "v1" } ]
2021-10-04
[ [ "Sasaki", "Ken", "" ], [ "Uematsu", "Tsuneo", "" ] ]
We investigate the production of CP-odd Higgs boson $A^0$ associated with a real $\gamma$ in $e^+e^-$ collisions. Because of the properties of $A^0$ coupling to the other fields, the main contribution comes from the top-quark triangle loop diagrams. We obtain the timelike transition form factor which describes the prod...
1708.09518
Alexander Parada Dr.
B. C. Ca\~nas, E. A. Garc\'es, O. G. Miranda, and A. Parada
The reactor antineutrino anomaly and low energy threshold neutrino experiments
9 pages, 6 figures, 1 table, matches published version
null
10.1016/j.physletb.2017.11.074
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Short distance reactor antineutrino experiments measure an antineutrino spectrum a few percent lower than expected from theoretical predictions. In this work we study the potential of low energy threshold reactor experiments in the context of a light sterile neutrino signal. We discuss the perspectives of the recentl...
[ { "created": "Thu, 31 Aug 2017 01:08:41 GMT", "version": "v1" }, { "created": "Sat, 17 Aug 2019 16:02:31 GMT", "version": "v2" } ]
2019-08-20
[ [ "Cañas", "B. C.", "" ], [ "Garcés", "E. A.", "" ], [ "Miranda", "O. G.", "" ], [ "Parada", "A.", "" ] ]
Short distance reactor antineutrino experiments measure an antineutrino spectrum a few percent lower than expected from theoretical predictions. In this work we study the potential of low energy threshold reactor experiments in the context of a light sterile neutrino signal. We discuss the perspectives of the recently ...
1508.07923
Sergey Alekhin
S. Alekhin, J. Bluemlein, S. Moch, R. Placakyte
Iso-spin asymmetry of quark distributions and implications for single top-quark production at the LHC
21 pages, 13 figures
Phys. Rev. D 94, 114038 (2016)
10.1103/PhysRevD.94.114038
DESY 15-161
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present an improved determination of the up- and down-quark distributions in the proton using recent data on charged lepton asymmetries from $W^\pm$ gauge-boson production at the LHC and Tevatron. The analysis is performed in the framework of a global fit of parton distribution functions. The fit results are consi...
[ { "created": "Mon, 31 Aug 2015 17:18:23 GMT", "version": "v1" } ]
2017-01-04
[ [ "Alekhin", "S.", "" ], [ "Bluemlein", "J.", "" ], [ "Moch", "S.", "" ], [ "Placakyte", "R.", "" ] ]
We present an improved determination of the up- and down-quark distributions in the proton using recent data on charged lepton asymmetries from $W^\pm$ gauge-boson production at the LHC and Tevatron. The analysis is performed in the framework of a global fit of parton distribution functions. The fit results are consist...
1308.0166
Alfonso Zerwekh
Bastian Diaz and Alfonso R. Zerwekh
Axigluon Phenomenology using ATLAS dijet data
null
null
10.1142/S0217751X13501339
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In recent years, there has been a renewed interest on axigluons as part of a possible extension of strong interactions at high energies. In this work, we use recent ATLAS measurements of the dijet spectrum in order to set limits on the axigluon mass and coupling to quarks. We pay special attention to the methodology ...
[ { "created": "Thu, 1 Aug 2013 12:13:26 GMT", "version": "v1" } ]
2015-06-16
[ [ "Diaz", "Bastian", "" ], [ "Zerwekh", "Alfonso R.", "" ] ]
In recent years, there has been a renewed interest on axigluons as part of a possible extension of strong interactions at high energies. In this work, we use recent ATLAS measurements of the dijet spectrum in order to set limits on the axigluon mass and coupling to quarks. We pay special attention to the methodology us...
hep-ph/0502150
Yasaman Farzan
Y. Farzan, G. Gelmini and A. Kusenko
Pulsar Kicks from Majoron Emission
4 pages, no figures
Phys.Lett.B621:22-27,2005
10.1016/j.physletb.2005.06.060
UCLA/05/TEP/6 and IPM/P-2005/008
hep-ph astro-ph
null
We show that Majoron emission from a hot nascent neutron star can be anisotropic in the presence of a strong magnetic field. If Majorons carry a non-negligible fraction of the supernova energy, the resulting recoil velocity of a neutron star can explain the observed velocities of pulsars.
[ { "created": "Wed, 16 Feb 2005 14:47:29 GMT", "version": "v1" } ]
2008-11-26
[ [ "Farzan", "Y.", "" ], [ "Gelmini", "G.", "" ], [ "Kusenko", "A.", "" ] ]
We show that Majoron emission from a hot nascent neutron star can be anisotropic in the presence of a strong magnetic field. If Majorons carry a non-negligible fraction of the supernova energy, the resulting recoil velocity of a neutron star can explain the observed velocities of pulsars.
1910.06279
Mikael Mieskolainen
Mikael Mieskolainen
Combinatorial Superstatistics for Soft QCD
51 pages, 14 figures, v2 minor corrections
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
High energy diffraction and soft QCD span exciting final state topologies and fluctuations which have not yet been measured or characterized in a fully exhaustive way. In this work, we go beyond the standard measures and formulate a new framework to generalize rapidity gap counting with emphasis on abstract structure...
[ { "created": "Mon, 14 Oct 2019 17:04:58 GMT", "version": "v1" }, { "created": "Tue, 15 Oct 2019 16:02:33 GMT", "version": "v2" } ]
2019-10-16
[ [ "Mieskolainen", "Mikael", "" ] ]
High energy diffraction and soft QCD span exciting final state topologies and fluctuations which have not yet been measured or characterized in a fully exhaustive way. In this work, we go beyond the standard measures and formulate a new framework to generalize rapidity gap counting with emphasis on abstract structure, ...
1707.08366
Rafal Maciula
Rafal Maciula and Antoni Szczurek
Double-parton scattering effects in associated production of charm mesons and dijets at the LHC
18 pages, 11 figures
Phys. Rev. D 96, 074013 (2017)
10.1103/PhysRevD.96.074013
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate several differential distributions for the production of charm and dijets. Both single-parton scattering (SPS) and double-parton scattering (DPS) contributions are calculated in the $k_T$-factorization approach. The Kimber-Martin-Ryskin unintegrated parton distributions are used in our calculations. Rela...
[ { "created": "Wed, 26 Jul 2017 10:45:11 GMT", "version": "v1" } ]
2017-10-25
[ [ "Maciula", "Rafal", "" ], [ "Szczurek", "Antoni", "" ] ]
We calculate several differential distributions for the production of charm and dijets. Both single-parton scattering (SPS) and double-parton scattering (DPS) contributions are calculated in the $k_T$-factorization approach. The Kimber-Martin-Ryskin unintegrated parton distributions are used in our calculations. Relati...
2304.13665
Bing-Long Zhang
Jian Tang, Bing-Long Zhang
Asymptotic Analysis on Binned Likelihood and Neutrino Floor
29 pages, 8 figures, github repository: https://github.com/zhangblong/AsymptoticAnalysisAndNeutrinoFog
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Observations of suspected coherent elastic neutrino-nucleus scatterings by dark matter direct detection experiments highlight the need for an investigation into the so-called "neutrino floor". We focus on the discovery limit, a statistical concept to identify the neutrino floor, and analyze the asymptotic behaviour o...
[ { "created": "Wed, 26 Apr 2023 16:39:32 GMT", "version": "v1" }, { "created": "Wed, 10 May 2023 07:35:24 GMT", "version": "v2" }, { "created": "Tue, 8 Aug 2023 01:50:14 GMT", "version": "v3" } ]
2023-08-09
[ [ "Tang", "Jian", "" ], [ "Zhang", "Bing-Long", "" ] ]
Observations of suspected coherent elastic neutrino-nucleus scatterings by dark matter direct detection experiments highlight the need for an investigation into the so-called "neutrino floor". We focus on the discovery limit, a statistical concept to identify the neutrino floor, and analyze the asymptotic behaviour of ...
1305.2407
Magno Machado
M.B. Gay Ducati, M.T. Griep, M.V.T. Machado
Diffractive photoproduction of radially excited psi(2S) mesons in photon-Pomeron reactions in PbPb collisions at the CERN LHC
06 pages, 3 figures. Version to be published in Physical Review C
Phys. Rev. C 88, 014910 (2013)
10.1103/PhysRevC.88.014910
null
hep-ph hep-ex nucl-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work we investigate the photoproduction of radially excited vector mesons off nuclei in heavy ion relativistic collisions. In particular, we analyze the exclusive photoproduction of psi(2S) off nuclei, evaluating the coherent and the incoherent contributions to that process. The theoretical framework used in ...
[ { "created": "Fri, 10 May 2013 19:29:03 GMT", "version": "v1" }, { "created": "Thu, 25 Jul 2013 19:04:29 GMT", "version": "v2" }, { "created": "Wed, 18 Jun 2014 16:40:38 GMT", "version": "v3" } ]
2014-06-19
[ [ "Ducati", "M. B. Gay", "" ], [ "Griep", "M. T.", "" ], [ "Machado", "M. V. T.", "" ] ]
In this work we investigate the photoproduction of radially excited vector mesons off nuclei in heavy ion relativistic collisions. In particular, we analyze the exclusive photoproduction of psi(2S) off nuclei, evaluating the coherent and the incoherent contributions to that process. The theoretical framework used in th...
2301.07571
Baisakhi Mitra
B. Mitra
Search for CPT and Lorentz Invariance Violation in the Muon g-2 Experiment at Fermilab
Presented at the Ninth Meeting on CPT and Lorentz Symmetry, Bloomington, Indiana, May 17-26, 2022
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Muon g-2 data can be used to study sidereal variation of anomalous muon precession rate, which is one of the important signatures of CPT and Lorentz invariance violation. The discussion in this proceeding will focus on the framework which has been used to study sidereal variation of anomalous muon precession rate in ...
[ { "created": "Tue, 17 Jan 2023 17:06:25 GMT", "version": "v1" }, { "created": "Sat, 21 Jan 2023 00:26:47 GMT", "version": "v2" } ]
2023-01-24
[ [ "Mitra", "B.", "" ] ]
Muon g-2 data can be used to study sidereal variation of anomalous muon precession rate, which is one of the important signatures of CPT and Lorentz invariance violation. The discussion in this proceeding will focus on the framework which has been used to study sidereal variation of anomalous muon precession rate in Mu...
1204.1735
Robert Fleischer
Kristof De Bruyn, Robert Fleischer, Robert Knegjens, Patrick Koppenburg, Marcel Merk, Niels Tuning
Branching Ratio Measurements of $B_s$ Decays
7 pages, 1 figure, title matches published version in Physical Review D
Phys. Rev. D 86, 014027 (2012)
10.1103/PhysRevD.86.014027
Nikhef-2012-005
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We have just entered an era of precision measurements for $B_s$-decay observables. A characteristic feature of the $B_s$-meson system is $B^0_s$--$\bar B^0_s$ mixing, which exhibits a sizable decay width difference. The latter feature leads to a subtle complication for the extraction of branching ratios of $B_s$ deca...
[ { "created": "Sun, 8 Apr 2012 15:10:01 GMT", "version": "v1" }, { "created": "Wed, 11 Apr 2012 16:21:44 GMT", "version": "v2" }, { "created": "Thu, 12 Jul 2012 15:04:12 GMT", "version": "v3" }, { "created": "Fri, 27 Jul 2012 09:00:12 GMT", "version": "v4" } ]
2012-07-30
[ [ "De Bruyn", "Kristof", "" ], [ "Fleischer", "Robert", "" ], [ "Knegjens", "Robert", "" ], [ "Koppenburg", "Patrick", "" ], [ "Merk", "Marcel", "" ], [ "Tuning", "Niels", "" ] ]
We have just entered an era of precision measurements for $B_s$-decay observables. A characteristic feature of the $B_s$-meson system is $B^0_s$--$\bar B^0_s$ mixing, which exhibits a sizable decay width difference. The latter feature leads to a subtle complication for the extraction of branching ratios of $B_s$ decays...
0901.4175
Seung-il Nam
Seung-il Nam, Daisuke Jido
Lambda(1405) photoprodcution with p-wave contributions
10 pages, 7 figures, Talk given at the Workshop "Strangeness in Multi-Quark Systems", 29 ~ 31 Oct 2008, Kaga, Japan
null
null
YITP-09-03
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this report, we present our recent studies on the Lambda(1405,1/2-)=Lambda* photoproduction via the gamma p -> K+ pi Sigma scattering process, employing a coupled-channel formalism, i.e., the chiral unitary model, which respects chiral dynamics in terms of the Weinberg-Tomozawa meson baryon interaction. In additio...
[ { "created": "Tue, 27 Jan 2009 04:57:20 GMT", "version": "v1" } ]
2009-01-28
[ [ "Nam", "Seung-il", "" ], [ "Jido", "Daisuke", "" ] ]
In this report, we present our recent studies on the Lambda(1405,1/2-)=Lambda* photoproduction via the gamma p -> K+ pi Sigma scattering process, employing a coupled-channel formalism, i.e., the chiral unitary model, which respects chiral dynamics in terms of the Weinberg-Tomozawa meson baryon interaction. In addition ...
2007.03939
Amaresh Jaiswal
Partha Pratim Bhaduri, Mubarak Alqahtani, Nicolas Borghini, Amaresh Jaiswal, Michael Strickland
Fireball tomography from bottomonia elliptic flow in relativistic heavy-ion collisions
8 pages, 5 figures, ancillary files with data of the figures are included in the source
Eur. Phys. J. C 81, 585 (2021)
10.1140/epjc/s10052-021-09383-3
null
hep-ph hep-ex hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the elliptic flow of bottomonia produced in Pb$\,+\,$Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV. We consider temperature-dependent decay widths for the anisotropic escape of various bottomonium states and observe that the transverse momentum dependence of bottomonia elliptic flow provides a tomographi...
[ { "created": "Wed, 8 Jul 2020 07:45:01 GMT", "version": "v1" }, { "created": "Thu, 8 Jul 2021 10:03:00 GMT", "version": "v2" } ]
2021-07-09
[ [ "Bhaduri", "Partha Pratim", "" ], [ "Alqahtani", "Mubarak", "" ], [ "Borghini", "Nicolas", "" ], [ "Jaiswal", "Amaresh", "" ], [ "Strickland", "Michael", "" ] ]
We calculate the elliptic flow of bottomonia produced in Pb$\,+\,$Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV. We consider temperature-dependent decay widths for the anisotropic escape of various bottomonium states and observe that the transverse momentum dependence of bottomonia elliptic flow provides a tomographic ...
hep-ph/0006311
Stephen Parke
J. Goldstein, C.S. Hill, J. Incandela, Stephen Parke, D. Rainwater and D. Stuart
P Pbar to T Tbar H: A Discovery mode for the Higgs boson at the Tevatron
10 pages, Latex, RevTex, 3 ps figures: Updated reconstruction efficiency and figures
Phys.Rev.Lett.86:1694-1697,2001
10.1103/PhysRevLett.86.1694
FERMILAB-Pub-00/146-T
hep-ph hep-ex
null
The production of a Standard Model Higgs boson in association with a top quark pair at the upcoming high luminosity run (15 inverse fb integrated luminosity) of the Fermilab Tevatron (root s = 2.0 TeV) is revisited. For Higgs masses below 140 GeV we demonstrate that the production cross section times branching ratio ...
[ { "created": "Tue, 27 Jun 2000 21:15:07 GMT", "version": "v1" }, { "created": "Tue, 16 Jan 2001 23:21:03 GMT", "version": "v2" } ]
2008-11-26
[ [ "Goldstein", "J.", "" ], [ "Hill", "C. S.", "" ], [ "Incandela", "J.", "" ], [ "Parke", "Stephen", "" ], [ "Rainwater", "D.", "" ], [ "Stuart", "D.", "" ] ]
The production of a Standard Model Higgs boson in association with a top quark pair at the upcoming high luminosity run (15 inverse fb integrated luminosity) of the Fermilab Tevatron (root s = 2.0 TeV) is revisited. For Higgs masses below 140 GeV we demonstrate that the production cross section times branching ratio fo...
hep-ph/0008108
Sven-Olaf Moch
T.O. Eynck, S. Moch (NIKHEF, Amsterdam)
Soft Gluon Resummation for Polarized Deep-inelastic Production of Heavy Quarks
11 pages, 5 figures, latex, minor changes
Phys.Lett. B495 (2000) 87-97
10.1016/S0370-2693(00)01211-9
NIKHEF 00-022
hep-ph
null
We present the threshold resummation for the cross section of heavy quark production in polarized deep-inelastic scattering to next-to-leading logarithmic accuracy and in single-particle inclusive kinematics. We expand our resummed result in alpha_s to next-to-leading and next-to-next-to-leading order and study the i...
[ { "created": "Fri, 11 Aug 2000 11:55:28 GMT", "version": "v1" }, { "created": "Wed, 18 Oct 2000 14:31:49 GMT", "version": "v2" } ]
2009-10-31
[ [ "Eynck", "T. O.", "", "NIKHEF, Amsterdam" ], [ "Moch", "S.", "", "NIKHEF, Amsterdam" ] ]
We present the threshold resummation for the cross section of heavy quark production in polarized deep-inelastic scattering to next-to-leading logarithmic accuracy and in single-particle inclusive kinematics. We expand our resummed result in alpha_s to next-to-leading and next-to-next-to-leading order and study the imp...
hep-ph/0201020
Pedro Vieira Alberto
M. Fiolhais, P. Alberto, J. Marques and B. Golli
Roper Electroproduction Amplitudes in a Chiral Confinement Model
10 pages, 8 figures, uses World Scientific macros. Talk presented at EMI2001 in Osaka, Japan
null
10.1142/9789812777218_0025
null
hep-ph
null
A description of the Roper using the chiral chromodielectric model is presented and the transverse $A_{1/2}$ and the scalar $S_{1/2}$ helicity amplitudes for the electromagnetic Nucleon--Roper transition are obtained for small and moderate $Q^2$. The sign of the amplitudes is correct but the model predictions underes...
[ { "created": "Fri, 4 Jan 2002 19:42:51 GMT", "version": "v1" } ]
2017-08-23
[ [ "Fiolhais", "M.", "" ], [ "Alberto", "P.", "" ], [ "Marques", "J.", "" ], [ "Golli", "B.", "" ] ]
A description of the Roper using the chiral chromodielectric model is presented and the transverse $A_{1/2}$ and the scalar $S_{1/2}$ helicity amplitudes for the electromagnetic Nucleon--Roper transition are obtained for small and moderate $Q^2$. The sign of the amplitudes is correct but the model predictions underesti...
1609.03309
A. Tureanu
Kazuo Fujikawa and Anca Tureanu
Naturalness in see-saw mechanism and Bogoliubov transformation
14 pages; version published in Phys. Lett. B
Phys.Lett. B767 (2017) 199-204
10.1016/j.physletb.2017.01.069
null
hep-ph cond-mat.str-el cond-mat.supr-con hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present an alternative perspective on the see-saw mechanism for the neutrino mass, according to which the small neutrino mass is given as a difference of two large masses. This view emerges when an analogue of the Bogoliubov transformation is used to describe Majorana neutrinos in the Lagrangian of the see-saw mec...
[ { "created": "Mon, 12 Sep 2016 08:46:37 GMT", "version": "v1" }, { "created": "Wed, 4 Jan 2017 11:50:47 GMT", "version": "v2" }, { "created": "Fri, 4 Aug 2017 20:12:54 GMT", "version": "v3" } ]
2017-08-08
[ [ "Fujikawa", "Kazuo", "" ], [ "Tureanu", "Anca", "" ] ]
We present an alternative perspective on the see-saw mechanism for the neutrino mass, according to which the small neutrino mass is given as a difference of two large masses. This view emerges when an analogue of the Bogoliubov transformation is used to describe Majorana neutrinos in the Lagrangian of the see-saw mecha...
2310.12023
Kunio Kaneta
Shinya Kanemura and Kunio Kaneta
Gravitational Waves from Particle Decays during Reheating
7 pages, 2 figures, error fixed, new model added
null
null
OU--HET--1206
hep-ph astro-ph.CO gr-qc
http://creativecommons.org/licenses/by/4.0/
Gravitational waves have become an irreplaceable tool for exploring the post-inflationary universe. Their cosmological and astrophysical origins have been attracting numerous attention. In this Letter, we point out a novel source of ultra-high frequency gravitational waves: the decay of particles produced during the ...
[ { "created": "Wed, 18 Oct 2023 14:57:19 GMT", "version": "v1" }, { "created": "Mon, 18 Mar 2024 05:09:53 GMT", "version": "v2" } ]
2024-03-19
[ [ "Kanemura", "Shinya", "" ], [ "Kaneta", "Kunio", "" ] ]
Gravitational waves have become an irreplaceable tool for exploring the post-inflationary universe. Their cosmological and astrophysical origins have been attracting numerous attention. In this Letter, we point out a novel source of ultra-high frequency gravitational waves: the decay of particles produced during the re...
2008.06494
Fabian Lange
Jonas Klappert, Fabian Lange, Philipp Maierh\"ofer, and Johann Usovitsch
Integral Reduction with Kira 2.0 and Finite Field Methods
32 pages, v2: minor changes and clarifications, matches published version except for another fixed typo in Eq. (7)
Comput. Phys. Commun. 266 (2021) 108024
10.1016/j.cpc.2021.108024
TTK-20-24, P3H-20-041, FR-PHENO-2020-11, MITP/20-044
hep-ph hep-th
http://creativecommons.org/licenses/by/4.0/
We present the new version 2.0 of the Feynman integral reduction program Kira and describe the new features. The primary new feature is the reconstruction of the final coefficients in integration-by-parts reductions by means of finite field methods with the help of FireFly. This procedure can be parallelized on compu...
[ { "created": "Fri, 14 Aug 2020 17:58:33 GMT", "version": "v1" }, { "created": "Wed, 22 Feb 2023 22:51:09 GMT", "version": "v2" } ]
2023-02-24
[ [ "Klappert", "Jonas", "" ], [ "Lange", "Fabian", "" ], [ "Maierhöfer", "Philipp", "" ], [ "Usovitsch", "Johann", "" ] ]
We present the new version 2.0 of the Feynman integral reduction program Kira and describe the new features. The primary new feature is the reconstruction of the final coefficients in integration-by-parts reductions by means of finite field methods with the help of FireFly. This procedure can be parallelized on compute...
hep-ph/0610099
Nicolas Matagne SE
N. Matagne, Fl. Stancu
New look at the $[{\bf 70},1^-]$ baryon multiplet in the $1/N_c$ expansion
12 pages, 7 tables, to be published in Nuclear Physics A
Nucl.Phys.A811:291-305,2008
10.1016/j.nuclphysa.2008.07.006
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
So far, the masses of excited states of mixed orbital symmetry and in particular those of nonstrange $[{\bf 70},1^-]$ baryons derived in the $1/N_c$ expansion were based on the separation of a system of $N_c$ quarks into a symmetric core and an excited quark. Here we avoid this separation and show that an advantage o...
[ { "created": "Mon, 9 Oct 2006 14:59:20 GMT", "version": "v1" }, { "created": "Tue, 21 Nov 2006 14:06:34 GMT", "version": "v2" }, { "created": "Thu, 4 Jan 2007 16:31:03 GMT", "version": "v3" }, { "created": "Wed, 16 Jul 2008 14:59:48 GMT", "version": "v4" } ]
2008-11-26
[ [ "Matagne", "N.", "" ], [ "Stancu", "Fl.", "" ] ]
So far, the masses of excited states of mixed orbital symmetry and in particular those of nonstrange $[{\bf 70},1^-]$ baryons derived in the $1/N_c$ expansion were based on the separation of a system of $N_c$ quarks into a symmetric core and an excited quark. Here we avoid this separation and show that an advantage of ...
hep-ph/0102150
Zhang Zhao-xi
Chao-Hsi Chang, Yu-Qi Chen, Guo-Li Wang and Hong-Shi Zong
Semileptonic Decays of $B_c$ Meson to a P-Wave Charmonium State $\chi_c$ or $h_c$
8 pages, 2 figures
Commun.Theor.Phys.35:395-398,2001
10.1088/0253-6102/35/4/395
null
hep-ph
null
The semileptonic decays of meson $B_c$ to a P-wave charmonium state $\chi_c(^3P_J)$ or $h_c(^1P_1)$ are computed. The results show that the decays are sizable so they are accessible in Tevatron and in LHC, especially, with the detectors LHCB and BTeV in the foreseeable future, and of them, the one to the $^1P_1$ char...
[ { "created": "Tue, 13 Feb 2001 12:19:59 GMT", "version": "v1" }, { "created": "Wed, 14 Feb 2001 03:48:45 GMT", "version": "v2" } ]
2018-01-17
[ [ "Chang", "Chao-Hsi", "" ], [ "Chen", "Yu-Qi", "" ], [ "Wang", "Guo-Li", "" ], [ "Zong", "Hong-Shi", "" ] ]
The semileptonic decays of meson $B_c$ to a P-wave charmonium state $\chi_c(^3P_J)$ or $h_c(^1P_1)$ are computed. The results show that the decays are sizable so they are accessible in Tevatron and in LHC, especially, with the detectors LHCB and BTeV in the foreseeable future, and of them, the one to the $^1P_1$ charmo...
2111.02091
C. Q. Geng
Chia-Wei Liu and Chao-Qiang Geng
Sizable Time-reversal violating effects in bottom baryon decays
15 pages, 2 figures, revised version accepted by JHEP
null
10.1007/JHEP01(2022)128
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
We study time-reversal~(T) asymmetries in the charmless two-body decays of antitriplet bottom baryons. We find that in ${\bf B}_b \to {\bf B}_n P$ with ${\bf B}_b = (\Xi _b ^- , \,\Xi_b^0, \,\Lambda_b)$ and ${\bf B}_n(P)$ a octet baryon (pseudoscalar meson), the positive and negative helicity amplitudes are both siza...
[ { "created": "Wed, 3 Nov 2021 09:19:20 GMT", "version": "v1" }, { "created": "Tue, 11 Jan 2022 05:36:20 GMT", "version": "v2" } ]
2022-02-09
[ [ "Liu", "Chia-Wei", "" ], [ "Geng", "Chao-Qiang", "" ] ]
We study time-reversal~(T) asymmetries in the charmless two-body decays of antitriplet bottom baryons. We find that in ${\bf B}_b \to {\bf B}_n P$ with ${\bf B}_b = (\Xi _b ^- , \,\Xi_b^0, \,\Lambda_b)$ and ${\bf B}_n(P)$ a octet baryon (pseudoscalar meson), the positive and negative helicity amplitudes are both sizabl...
2403.07981
Neil Christensen
Neil Christensen
SPINAS: Spinor Amplitude Subroutines for Constructive Diagram Evaluations
39 pages, 0 figures
null
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
SPINAS is a C++ package created for the implementation and numerical computation of phase-space points of constructive amplitudes in particle physics. This package contains a suite of classes and methods for handling particles, propagators, spinor products, and processes. SPINAS is structured to offer straightforward...
[ { "created": "Tue, 12 Mar 2024 18:00:03 GMT", "version": "v1" } ]
2024-03-14
[ [ "Christensen", "Neil", "" ] ]
SPINAS is a C++ package created for the implementation and numerical computation of phase-space points of constructive amplitudes in particle physics. This package contains a suite of classes and methods for handling particles, propagators, spinor products, and processes. SPINAS is structured to offer straightforward u...
1603.09527
Simone Pacetti
Earle L. Lomon and Simone Pacetti
Analytic pion form factor
10 pages, 7 figures
Phys. Rev. D 94, 056002 (2016)
10.1103/PhysRevD.94.056002
MIT-CTP/4795
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The pion electromagnetic form factor and two-pion production in electron-positron collisions are simultaneously fitted by a vector dominance model evolving to perturbative QCD at large momentum transfer. This model was previously successful in simultaneously fitting the nucleon electromagnetic form factors (spacelike...
[ { "created": "Thu, 31 Mar 2016 11:21:55 GMT", "version": "v1" }, { "created": "Thu, 25 Aug 2016 05:22:44 GMT", "version": "v2" }, { "created": "Fri, 9 Sep 2016 08:35:24 GMT", "version": "v3" } ]
2016-09-14
[ [ "Lomon", "Earle L.", "" ], [ "Pacetti", "Simone", "" ] ]
The pion electromagnetic form factor and two-pion production in electron-positron collisions are simultaneously fitted by a vector dominance model evolving to perturbative QCD at large momentum transfer. This model was previously successful in simultaneously fitting the nucleon electromagnetic form factors (spacelike r...
2102.04280
Guo-Yuan Huang
Guo-yuan Huang and Werner Rodejohann
Solving the Hubble tension without spoiling Big Bang Nucleosynthesis
9 pages, 4 figures
Phys. Rev. D 103, 123007 (2021)
10.1103/PhysRevD.103.123007
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Hubble parameter inferred from cosmic microwave background observations is consistently lower than that from local measurements, which could hint towards new physics. Solutions to the Hubble tension typically require a sizable amount of extra radiation $\Delta N^{}_{\rm eff}$ during recombination. However, the am...
[ { "created": "Mon, 8 Feb 2021 15:33:31 GMT", "version": "v1" } ]
2021-06-16
[ [ "Huang", "Guo-yuan", "" ], [ "Rodejohann", "Werner", "" ] ]
The Hubble parameter inferred from cosmic microwave background observations is consistently lower than that from local measurements, which could hint towards new physics. Solutions to the Hubble tension typically require a sizable amount of extra radiation $\Delta N^{}_{\rm eff}$ during recombination. However, the amou...
2305.11775
Rinku Maji
Rinku Maji, Wan-Il Park, Qaisar Shafi
Gravitational waves from walls bounded by strings in $SO(10)$ model of pseudo-Goldstone dark matter
8 pages, 3 figures, version published in PLB
Physics Letters B 845 (2023) 138127
10.1016/j.physletb.2023.138127
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore the gravitational wave spectrum generated by string-wall structures in an $SO(10)$ ($Spin(10)$) based scenario of pseudo-Goldstone boson dark matter (pGDM) particle. This dark matter candidate is a linear combination of the Standard Model (SM) singlets present in the 126 and 16 dimensional Higgs fields. Th...
[ { "created": "Fri, 19 May 2023 16:03:39 GMT", "version": "v1" }, { "created": "Mon, 4 Sep 2023 03:16:40 GMT", "version": "v2" } ]
2023-09-07
[ [ "Maji", "Rinku", "" ], [ "Park", "Wan-Il", "" ], [ "Shafi", "Qaisar", "" ] ]
We explore the gravitational wave spectrum generated by string-wall structures in an $SO(10)$ ($Spin(10)$) based scenario of pseudo-Goldstone boson dark matter (pGDM) particle. This dark matter candidate is a linear combination of the Standard Model (SM) singlets present in the 126 and 16 dimensional Higgs fields. The ...
hep-ph/9710398
Alexander L. Bondarev
Alexander L. Bondarev (NC PHEP, Minsk, Belarus)
Methods of Minimization of Calculations in High Energy Physics: 1. A Covariant Method of the Calculation of Amplitudes of Processes Involving Polarized Dirac Particles
38 pages, LaTeX
null
null
null
hep-ph hep-th
null
The article deals with a number of the existings variants of direct calculation of amplitudes of processes with polarized Dirac particles. It is shown, that all of them are special cases of one and the same mathematical scheme. The advantages and disadvantages of this scheme are considered. A new variant of the metho...
[ { "created": "Sat, 18 Oct 1997 19:44:49 GMT", "version": "v1" }, { "created": "Mon, 2 Feb 1998 20:09:43 GMT", "version": "v2" } ]
2007-05-23
[ [ "Bondarev", "Alexander L.", "", "NC PHEP, Minsk, Belarus" ] ]
The article deals with a number of the existings variants of direct calculation of amplitudes of processes with polarized Dirac particles. It is shown, that all of them are special cases of one and the same mathematical scheme. The advantages and disadvantages of this scheme are considered. A new variant of the method ...
hep-ph/9911321
Yosef Nir
Yosef Nir
CP Violation In and Beyond the Standard Model
85 pages, harvmac, Lectures given in the XXVII SLAC Summer Institute on Particle Physics, July 7 - 16, 1999. v2: references added
null
null
IASSNS-HEP-99-96
hep-ph
null
The special features of CP violation in the Standard Model are presented. The significance of measuring CP violation in B, K and D decays is explained. The predictions of the Standard Model for CP asymmetries in B decays are analyzed in detail. Then, four frameworks of new physics are reviewed: (i) Supersymmetry prov...
[ { "created": "Thu, 11 Nov 1999 22:11:05 GMT", "version": "v1" }, { "created": "Tue, 23 Nov 1999 19:17:02 GMT", "version": "v2" } ]
2007-05-23
[ [ "Nir", "Yosef", "" ] ]
The special features of CP violation in the Standard Model are presented. The significance of measuring CP violation in B, K and D decays is explained. The predictions of the Standard Model for CP asymmetries in B decays are analyzed in detail. Then, four frameworks of new physics are reviewed: (i) Supersymmetry provid...
2109.01015
Luciano Abreu
Luciano M. Abreu and Felipe J. Llanes-Estrada
Triangle singularities waning in Heavy Ion Collisions: the case of $Y(4260)\to \pi (\pi J/\psi)$
5 pages, 4 figures. Contribution to the proceedings of the 24th High-Energy Physics International Conference in Quantum ChromoDynamics (QCD21), 5-9 Jul 2021 Montpellier-France
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We have recently observed that hadron triangle singularities, that can mock new exotic hadrons, can be significanttly suppressed in relativistic heavy ion collisions, provided two conditions are met: these are, first, that the fireball lives long enough so that the triangle process has enough time to complete in the ...
[ { "created": "Thu, 2 Sep 2021 15:22:48 GMT", "version": "v1" } ]
2021-09-03
[ [ "Abreu", "Luciano M.", "" ], [ "Llanes-Estrada", "Felipe J.", "" ] ]
We have recently observed that hadron triangle singularities, that can mock new exotic hadrons, can be significanttly suppressed in relativistic heavy ion collisions, provided two conditions are met: these are, first, that the fireball lives long enough so that the triangle process has enough time to complete in the No...
2011.08313
Bahram Shakerin
B. Shakerin, B.F.L. Ward
IR-improved DGLAP parton shower effects for associated production of a W boson and jets in pp collisions at $\sqrt{s}=$8 and 13 TeV
42 pages, 38 figures. To appear in IJMPA
International Journal of Modern Physics A Vol. 35 (2020) 2050197
10.1142/S0217751X20501973
BU-HEPP-19-05
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In a previous paper, hereafter referred to as I, we have analyzed the 7 TeV LHC data on W + jets events from the standpoint of IR-improved DGLAP parton shower effects, using the IR-improved Herwiri1.031 parton shower MC in comparison with the Herwig6.5 parton shower MC in the context of the exact $O(\alpha_s)$ matrix...
[ { "created": "Mon, 16 Nov 2020 22:24:47 GMT", "version": "v1" } ]
2020-11-18
[ [ "Shakerin", "B.", "" ], [ "Ward", "B. F. L.", "" ] ]
In a previous paper, hereafter referred to as I, we have analyzed the 7 TeV LHC data on W + jets events from the standpoint of IR-improved DGLAP parton shower effects, using the IR-improved Herwiri1.031 parton shower MC in comparison with the Herwig6.5 parton shower MC in the context of the exact $O(\alpha_s)$ matrix e...
hep-ph/9907480
Max Chaves
M. Chaves and H. Morales
The Standard Model and the Generalized Covariant Derivative
8 pages, no figures. To be published in the proceedings of the International Workshop "Lorentz Group, CPT and Neutrinos", (Zacatecas, Mexico, June 23-26, 1999)
null
null
null
hep-ph hep-th
null
The generalized covariant derivative, that uses both scalar and vector bosons, is defined. It is shown how a grand unified theory of the Standard Model can be constructed using a generalized Yang-Mills theory.
[ { "created": "Fri, 23 Jul 1999 23:07:59 GMT", "version": "v1" } ]
2007-05-23
[ [ "Chaves", "M.", "" ], [ "Morales", "H.", "" ] ]
The generalized covariant derivative, that uses both scalar and vector bosons, is defined. It is shown how a grand unified theory of the Standard Model can be constructed using a generalized Yang-Mills theory.
1808.08358
Bao-Xi Sun
Da-Ming Wan, Si-Yu Zhao and Bao-Xi Sun
The $K\bar{K}^*$ interaction in the unitary coupled-channel approximation
10 pages, 1 figure and 1 table
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The $K\bar{K}^*$ interaction Lagrangian is constructed when the $SU(3)$ hidden gauge symmetry is taken into account, and then the $K\bar{K}^*$ potential is obtained. In the low energy region, the $K\bar{K}^*$ potential mainly comes from the contribution of the $t-$channel interaction by exchanging $\rho$,$\omega$ and...
[ { "created": "Sat, 25 Aug 2018 05:44:06 GMT", "version": "v1" } ]
2018-08-28
[ [ "Wan", "Da-Ming", "" ], [ "Zhao", "Si-Yu", "" ], [ "Sun", "Bao-Xi", "" ] ]
The $K\bar{K}^*$ interaction Lagrangian is constructed when the $SU(3)$ hidden gauge symmetry is taken into account, and then the $K\bar{K}^*$ potential is obtained. In the low energy region, the $K\bar{K}^*$ potential mainly comes from the contribution of the $t-$channel interaction by exchanging $\rho$,$\omega$ and $...
0706.3987
Cristina Manuel
Massimo Mannarelli and Cristina Manuel
Exciting the quark-gluon plasma with a relativistic jet
2 pages, 2 figures. Presented at "Heavy Ion Collisions at the LHC: Last Call for Predictions", CERN, Geneva, May-June 2007
null
null
null
hep-ph
null
We discuss the properties of a system composed by a static plasma traversed by a jet of particles. Assuming that both the jet and the plasma can be described using a hydrodynamical approach, and in the conformal limit, we find that unstable modes arise when the velocity of the jet is larger than the speed of the soun...
[ { "created": "Wed, 27 Jun 2007 09:20:35 GMT", "version": "v1" } ]
2007-06-28
[ [ "Mannarelli", "Massimo", "" ], [ "Manuel", "Cristina", "" ] ]
We discuss the properties of a system composed by a static plasma traversed by a jet of particles. Assuming that both the jet and the plasma can be described using a hydrodynamical approach, and in the conformal limit, we find that unstable modes arise when the velocity of the jet is larger than the speed of the sound ...
2007.00029
Kre\v{s}imir Kumeri\v{c}ki
Marija Cuic, Kresimir Kumericki and Andreas Schafer
Separation of Quark Flavors using DVCS Data
6 pages, 5 figures
null
null
ZTF-EP-20-04
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Using the available data on deeply virtual Compton scattering (DVCS) off protons and utilizing neural networks enhanced by the dispersion relation constraint, we determine six out of eight leading Compton form factors in the valence quark kinematic region. Furthermore, adding recent data on DVCS off neutrons, we sepa...
[ { "created": "Tue, 30 Jun 2020 18:02:00 GMT", "version": "v1" } ]
2020-07-02
[ [ "Cuic", "Marija", "" ], [ "Kumericki", "Kresimir", "" ], [ "Schafer", "Andreas", "" ] ]
Using the available data on deeply virtual Compton scattering (DVCS) off protons and utilizing neural networks enhanced by the dispersion relation constraint, we determine six out of eight leading Compton form factors in the valence quark kinematic region. Furthermore, adding recent data on DVCS off neutrons, we separa...
hep-ph/9308280
null
J. Garriga
Nucleation Rates in Flat and Curved Space
57 pages, TUTP-10-93
Phys.Rev.D49:6327-6342,1994
10.1103/PhysRevD.49.6327
null
hep-ph gr-qc hep-th
null
Nucleation rates for tunneling processes in Minkowski and de Sitter space are investigated, taking into account one loop prefactors. In particular, we con- sider the creation of membranes by an antisymmetric tensor field, analogous to Schwinger pair production. This can be viewed as a model for the decay of false (or...
[ { "created": "Mon, 16 Aug 1993 20:39:00 GMT", "version": "v1" } ]
2010-11-01
[ [ "Garriga", "J.", "" ] ]
Nucleation rates for tunneling processes in Minkowski and de Sitter space are investigated, taking into account one loop prefactors. In particular, we con- sider the creation of membranes by an antisymmetric tensor field, analogous to Schwinger pair production. This can be viewed as a model for the decay of false (or t...
1501.03283
Poulose Poulose Dr.
Satendra Kumar, P. Poulose, Shibananda Sahoo
Study of Higgs-gauge boson anomalous couplings through $e^-e^+ \rightarrow W^-W^+H$ at ILC
pdflatex, 15 pages, 11 figures, 3 tables. arXiv admin note: text overlap with arXiv:1408.3563. published version with minor changes in the figure presentation, updated references
null
10.1103/PhysRevD.91.073016
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, Higgs couplings with gauge bosons is probed through $e^-e^+ \rightarrow W^-W^+H$ in an effective Lagrangian framework. An ILC of 500 $GeV$ center of mass energy with possible beam polarization is considered for this purpose. The reach of ILC with integrated luminosity of 300 $fb^{-1}$ in the determinati...
[ { "created": "Wed, 14 Jan 2015 08:50:14 GMT", "version": "v1" }, { "created": "Tue, 19 May 2015 07:36:03 GMT", "version": "v2" } ]
2015-06-11
[ [ "Kumar", "Satendra", "" ], [ "Poulose", "P.", "" ], [ "Sahoo", "Shibananda", "" ] ]
In this work, Higgs couplings with gauge bosons is probed through $e^-e^+ \rightarrow W^-W^+H$ in an effective Lagrangian framework. An ILC of 500 $GeV$ center of mass energy with possible beam polarization is considered for this purpose. The reach of ILC with integrated luminosity of 300 $fb^{-1}$ in the determination...
1207.6812
Ramona Vogt
R. Vogt (LLNL and UC Davis), R. E. Nelson (LLNL and UC Davis) and A. D. Frawley (Florida State)
Improving the J/psi Production Baseline at RHIC and the LHC
Proceedings for Hard Probes 2012, Cagliari, Italy
null
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We assess the theoretical uncertainties on the inclusive J/psi production cross section in the Color Evaporation Model (CEM) using values for the charm quark mass, renormalization and factorization scales obtained from a fit to the charm production data. We use our new results to provide improved baseline comparison ...
[ { "created": "Mon, 30 Jul 2012 00:33:28 GMT", "version": "v1" } ]
2012-07-31
[ [ "Vogt", "R.", "", "LLNL and UC Davis" ], [ "Nelson", "R. E.", "", "LLNL and UC Davis" ], [ "Frawley", "A. D.", "", "Florida State" ] ]
We assess the theoretical uncertainties on the inclusive J/psi production cross section in the Color Evaporation Model (CEM) using values for the charm quark mass, renormalization and factorization scales obtained from a fit to the charm production data. We use our new results to provide improved baseline comparison ca...
1201.6305
Sven Heinemeyer
S. Heinemeyer, F. v. d. Pahlen, H. Rzehak, C. Schappacher
MSSM Higgs Bosons from Stop and Chargino Decays
7 pages, 2 figures, talk given at the LCWS 2011, September 2011, Granada, Spain
null
null
CERN-PH-TH/2012-022; KA-TP-03-2012
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Higgs bosons of the MSSM can be produced from the decay of SUSY particles. We review the evalulation of two decay modes in the MSSM with complex parameters (cMSSM). The first type is the decay of the heavy scalar top quark to a lighter scalar quark and a Higgs boson. The second type is the decay of the heavy char...
[ { "created": "Mon, 30 Jan 2012 18:04:39 GMT", "version": "v1" } ]
2015-03-13
[ [ "Heinemeyer", "S.", "" ], [ "Pahlen", "F. v. d.", "" ], [ "Rzehak", "H.", "" ], [ "Schappacher", "C.", "" ] ]
The Higgs bosons of the MSSM can be produced from the decay of SUSY particles. We review the evalulation of two decay modes in the MSSM with complex parameters (cMSSM). The first type is the decay of the heavy scalar top quark to a lighter scalar quark and a Higgs boson. The second type is the decay of the heavy chargi...
hep-ph/9502342
Valentin Khoze
Valentin V. Khoze
Fermion Number Violation in the Background of a Gauge Field in Minkowski Space
Few misprints are eliminated and the discussion leading to eqs. (3.31) is reiterated. Accepted in Nucl. Phys. B, 29 Plain TEX pages plus 3 uuencoded PS figures. The hard copies of the figs are available from valya.khoze@durham.ac.uk
Nucl.Phys. B445 (1995) 270-294
10.1016/0550-3213(95)00188-X
DTP/95/16
hep-ph hep-th
null
Anomalous fermion number violation is studied in the background of a pure SU(2) gauge field in Minkowski space using the method of N. Christ. It is demonstrated that the chiral fermion number is violated by at most an integer amount. Then the method is applied for a spherically symmetric Minkowski space classical gau...
[ { "created": "Fri, 17 Feb 1995 18:54:05 GMT", "version": "v1" }, { "created": "Mon, 20 Feb 1995 11:19:14 GMT", "version": "v2" }, { "created": "Tue, 16 May 1995 14:54:56 GMT", "version": "v3" }, { "created": "Wed, 17 May 1995 10:02:39 GMT", "version": "v4" } ]
2009-10-28
[ [ "Khoze", "Valentin V.", "" ] ]
Anomalous fermion number violation is studied in the background of a pure SU(2) gauge field in Minkowski space using the method of N. Christ. It is demonstrated that the chiral fermion number is violated by at most an integer amount. Then the method is applied for a spherically symmetric Minkowski space classical gauge...
1607.01165
Thomas Becher
Thomas Becher
QCD and High Energy Interactions: Moriond 2016 Theory Summary
14 pages, 5 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
I summarize the theory talks presented at the 50 year anniversary conference. The talks covered a wide range of topics, but common threads included next-to-next-to-leading order predictions for many 2 -> 2 processes, beyond QCD lattice simulations, work on the set of persistent flavor physics anomalies, and discussio...
[ { "created": "Tue, 5 Jul 2016 09:31:15 GMT", "version": "v1" } ]
2016-07-06
[ [ "Becher", "Thomas", "" ] ]
I summarize the theory talks presented at the 50 year anniversary conference. The talks covered a wide range of topics, but common threads included next-to-next-to-leading order predictions for many 2 -> 2 processes, beyond QCD lattice simulations, work on the set of persistent flavor physics anomalies, and discussions...
hep-ph/0605108
Matteo Beccaria
M. Beccaria, G. Macorini, F.M. Renard, C. Verzegnassi
Single top production in the $t$-channel at LHC: a realistic test of electroweak models
28 pages, 10 eps figures
Phys.Rev.D74:013008,2006
10.1103/PhysRevD.74.013008
PTA-06/14
hep-ph
null
We compute the complete electroweak one-loop effect on the process of $t$-channel single top production at LHC in the Standard Model and in the MSSM within the mSUGRA symmetry breaking scheme. We find that the one-loop electroweak SM effect is large, and decreases the cross section of an amount that is of the same si...
[ { "created": "Wed, 10 May 2006 07:55:31 GMT", "version": "v1" } ]
2008-11-26
[ [ "Beccaria", "M.", "" ], [ "Macorini", "G.", "" ], [ "Renard", "F. M.", "" ], [ "Verzegnassi", "C.", "" ] ]
We compute the complete electroweak one-loop effect on the process of $t$-channel single top production at LHC in the Standard Model and in the MSSM within the mSUGRA symmetry breaking scheme. We find that the one-loop electroweak SM effect is large, and decreases the cross section of an amount that is of the same size...
hep-ph/9412282
Ulf Meissner
V. Bernard, N. Kaiser and Ulf-G. Mei{\ss}ner
Novel Pion Electroproduction Low-Energy Theorems
6 pp, plain LaTeX, one figure available from the authors via fax or normal mail
Phys.Rev.Lett. 74 (1995) 3752-3755
10.1103/PhysRevLett.74.3752
CRN 94-66 and TK 94 19
hep-ph nucl-th
null
We present novel low--energy theorems for the P--wave multipoles $2M_{1+} + M_{1-}$, $M_{1+} -M_{1-}$, $E_{1+}$ and $L_{1\pm}$ for neutral pion electroproduction off protons. These should be very useful for the analysis of existing or future threshold data.
[ { "created": "Tue, 13 Dec 1994 08:52:14 GMT", "version": "v1" } ]
2009-10-28
[ [ "Bernard", "V.", "" ], [ "Kaiser", "N.", "" ], [ "Meißner", "Ulf-G.", "" ] ]
We present novel low--energy theorems for the P--wave multipoles $2M_{1+} + M_{1-}$, $M_{1+} -M_{1-}$, $E_{1+}$ and $L_{1\pm}$ for neutral pion electroproduction off protons. These should be very useful for the analysis of existing or future threshold data.
hep-ph/9905337
Michael Strickland
Jens O. Andersen, Eric Braaten, and Michael Strickland
Hard-thermal-loop Resummation of the Thermodynamics of a Hot Gluon Plasma
35 pages, 6 figures
Phys.Rev.D61:014017,2000
10.1103/PhysRevD.61.014017
null
hep-ph
null
We calculate the thermodynamic functions of a hot gluon plasma to leading order in hard-thermal-loop (HTL) perturbation theory. Effects associated with screening, gluon quasiparticles, and Landau damping are resummed to all orders. The ultraviolet divergences generated by the HTL propagator corrections can be cancell...
[ { "created": "Fri, 14 May 1999 03:15:34 GMT", "version": "v1" }, { "created": "Mon, 2 Aug 1999 16:57:53 GMT", "version": "v2" }, { "created": "Fri, 27 Aug 1999 20:43:43 GMT", "version": "v3" } ]
2016-09-06
[ [ "Andersen", "Jens O.", "" ], [ "Braaten", "Eric", "" ], [ "Strickland", "Michael", "" ] ]
We calculate the thermodynamic functions of a hot gluon plasma to leading order in hard-thermal-loop (HTL) perturbation theory. Effects associated with screening, gluon quasiparticles, and Landau damping are resummed to all orders. The ultraviolet divergences generated by the HTL propagator corrections can be cancelled...
1811.08899
Teppei Kitahara
Syuhei Iguro, Teppei Kitahara, Yuji Omura, Ryoutaro Watanabe, Kei Yamamoto
$D^{\ast}$ polarization vs. $R_{D^{(\ast)}}$ anomalies in the leptoquark models
24 pages, 3 figures, 1 table; references added, version published in JHEP
JHEP 1902 (2019) 194
10.1007/JHEP02(2019)194
TTP18-037, ZU-TH-39/18
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Polarization measurements in $\bar{B} \to D^{(\ast)} \tau \overline{\nu}$ are useful to check consistency in new physics explanations for the $R_{D}$ and $R_{D^{\ast}}$ anomalies. In this paper, we investigate the $D^{\ast}$ and $\tau$ polarizations and focus on the new physics contributions to the fraction of a long...
[ { "created": "Wed, 21 Nov 2018 19:00:00 GMT", "version": "v1" }, { "created": "Mon, 3 Dec 2018 21:09:27 GMT", "version": "v2" }, { "created": "Mon, 4 Mar 2019 16:25:38 GMT", "version": "v3" } ]
2019-03-05
[ [ "Iguro", "Syuhei", "" ], [ "Kitahara", "Teppei", "" ], [ "Omura", "Yuji", "" ], [ "Watanabe", "Ryoutaro", "" ], [ "Yamamoto", "Kei", "" ] ]
Polarization measurements in $\bar{B} \to D^{(\ast)} \tau \overline{\nu}$ are useful to check consistency in new physics explanations for the $R_{D}$ and $R_{D^{\ast}}$ anomalies. In this paper, we investigate the $D^{\ast}$ and $\tau$ polarizations and focus on the new physics contributions to the fraction of a longit...
1509.04596
Xin Liu
Defa Dou, Xin Liu, Jing-Wu Li, and Zhen-Jun Xiao
Large non-factorizable contributions in $B \to a_0 a_0$ decays
17 pages, 3 figures, and 2 tables; references added, contents improved, to appear in JPG, matching the published version
null
10.1088/0954-3899/43/4/045001
JSNU/PHY-TH-2015
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate three tree-dominated $B \to a_0 a_0$ decays for the first time in the perturbative QCD(pQCD) approach at leading order in the standard model, with $a_0$ standing for the light scalar $a_0(980)$ state, which is assumed as a meson based on the model of conventional two-quark$(q\bar q)$ structure. All the...
[ { "created": "Tue, 15 Sep 2015 15:08:55 GMT", "version": "v1" }, { "created": "Mon, 25 Jan 2016 15:16:26 GMT", "version": "v2" } ]
2016-03-23
[ [ "Dou", "Defa", "" ], [ "Liu", "Xin", "" ], [ "Li", "Jing-Wu", "" ], [ "Xiao", "Zhen-Jun", "" ] ]
We investigate three tree-dominated $B \to a_0 a_0$ decays for the first time in the perturbative QCD(pQCD) approach at leading order in the standard model, with $a_0$ standing for the light scalar $a_0(980)$ state, which is assumed as a meson based on the model of conventional two-quark$(q\bar q)$ structure. All the t...
2008.13304
Xin-Nian Wang
Yayun He, Longgang Pang and Xin-Nian Wang
Gradient tomography of jet quenching in high-energy heavy-ion collisions
4 pages in Latex format for POS with 4 PDF figures, prepared for publication in the proceedings of Hard Probes 2020 conference, 1-6 June 2020, Austin, Texas
null
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We illustrate with both a Boltzmann diffusion equation and full simulations of jet propagation in heavy-ion collisions within the Linear Boltzmann Transport (LBT) model that the spatial gradient of the jet transport coefficient perpendicular to the propagation direction can lead to a drift and asymmetry in the transv...
[ { "created": "Mon, 31 Aug 2020 00:23:00 GMT", "version": "v1" } ]
2020-09-01
[ [ "He", "Yayun", "" ], [ "Pang", "Longgang", "" ], [ "Wang", "Xin-Nian", "" ] ]
We illustrate with both a Boltzmann diffusion equation and full simulations of jet propagation in heavy-ion collisions within the Linear Boltzmann Transport (LBT) model that the spatial gradient of the jet transport coefficient perpendicular to the propagation direction can lead to a drift and asymmetry in the transver...
2212.03336
Rudnei Ramos
Lucas G. C\^amara and Rudnei O. Ramos
Finite size effects in the phase transition patterns of coupled scalar field systems
19 pages, 8 figures. Many clarifications added. Version matching the published one in the Physical Review D
Phys. Rev. D 107, 056021 (2023)
10.1103/PhysRevD.107.056021
null
hep-ph cond-mat.stat-mech hep-th
http://creativecommons.org/licenses/by/4.0/
It is considered in this work the phase transition patterns for a coupled two-scalar field system model under the combined effects of finite sizes and temperature. The scalar fields are taken as propagating in a D=4 Euclidean space with the usual periodic compactification in the Euclidean time direction (with dimensi...
[ { "created": "Tue, 6 Dec 2022 21:39:16 GMT", "version": "v1" }, { "created": "Wed, 29 Mar 2023 17:08:50 GMT", "version": "v2" } ]
2023-03-30
[ [ "Câmara", "Lucas G.", "" ], [ "Ramos", "Rudnei O.", "" ] ]
It is considered in this work the phase transition patterns for a coupled two-scalar field system model under the combined effects of finite sizes and temperature. The scalar fields are taken as propagating in a D=4 Euclidean space with the usual periodic compactification in the Euclidean time direction (with dimension...
2208.03852
Shinsuke Yoshida
Shinsuke Yoshida, Difei Zheng
Reformulation of the twist-3 gluon Sivers effect toward the application to the heavy quarkonium production
15 pages, 6 figures, to be published in Physical Review D
null
10.1103/PhysRevD.106.034019
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
In this paper, we propose a new calculation method for the twist-3 gluon Sivers effect within the collinear factorization approach. The method called pole calculation has been used to derive the cross section formula for the single transverse-spin asymmetry(SSA) as a standard method. We point out that we encounter a ...
[ { "created": "Mon, 8 Aug 2022 00:23:32 GMT", "version": "v1" } ]
2022-08-31
[ [ "Yoshida", "Shinsuke", "" ], [ "Zheng", "Difei", "" ] ]
In this paper, we propose a new calculation method for the twist-3 gluon Sivers effect within the collinear factorization approach. The method called pole calculation has been used to derive the cross section formula for the single transverse-spin asymmetry(SSA) as a standard method. We point out that we encounter a pr...
1706.03891
Savely G. Karshenboim
Andrzej Czarnecki, Savely G. Karshenboim
Decay of the dimuonium into a photon and a neutral pion
corrected and extended list of references
null
10.1103/PhysRevD.96.011302
Alberta Thy 28-16
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We compute the decay rate of dimuonium into a neutral pion and a photon. We find that approximately one in 10^5 ortho-dimuonia decays into this channel. We also determine the contribution of the virtual photon-pion loop to the hyperfine splitting in dimuonium and reproduce its leading effect in the anomalous magnetic...
[ { "created": "Tue, 13 Jun 2017 02:25:02 GMT", "version": "v1" }, { "created": "Mon, 26 Jun 2017 08:02:55 GMT", "version": "v2" } ]
2017-08-02
[ [ "Czarnecki", "Andrzej", "" ], [ "Karshenboim", "Savely G.", "" ] ]
We compute the decay rate of dimuonium into a neutral pion and a photon. We find that approximately one in 10^5 ortho-dimuonia decays into this channel. We also determine the contribution of the virtual photon-pion loop to the hyperfine splitting in dimuonium and reproduce its leading effect in the anomalous magnetic m...
2311.06469
Wei Chao
Wei Chao, Ying-Quan Peng
Majorana Majoron and the Baryon Asymmetry of the Universe
15 pages, 4 figures, comments are welcome!
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The spontaneous breaking of the global lepton number, an accidental symmetry in the Standard Model of particle physics, results in a massless goldstone boson, the Majoron, which can be taken as a cold dark matter candidate with properties similar to these of the axion. In this letter, we propose a novel mass generati...
[ { "created": "Sat, 11 Nov 2023 03:40:01 GMT", "version": "v1" } ]
2023-11-14
[ [ "Chao", "Wei", "" ], [ "Peng", "Ying-Quan", "" ] ]
The spontaneous breaking of the global lepton number, an accidental symmetry in the Standard Model of particle physics, results in a massless goldstone boson, the Majoron, which can be taken as a cold dark matter candidate with properties similar to these of the axion. In this letter, we propose a novel mass generation...
2211.16265
Berndt Muller
Berndt M\"uller and Andreas Sch\"afer
Quark-Hadron Transition and Entanglement
null
null
null
null
hep-ph nucl-th
http://creativecommons.org/licenses/by/4.0/
The dual holographic description has enjoyed many successes in explaining fundamental properties of the early stages of relativistic heavy ion collisions up to the formation of a minimal-viscosity quark-gluon fluid. However, there have been few attempts to extend its application beyond this stage. Here we explore the...
[ { "created": "Tue, 29 Nov 2022 14:53:01 GMT", "version": "v1" } ]
2022-11-30
[ [ "Müller", "Berndt", "" ], [ "Schäfer", "Andreas", "" ] ]
The dual holographic description has enjoyed many successes in explaining fundamental properties of the early stages of relativistic heavy ion collisions up to the formation of a minimal-viscosity quark-gluon fluid. However, there have been few attempts to extend its application beyond this stage. Here we explore the p...