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1102.3510
Valery Katkov
V.M. Katkov
Pair Photoproduction in Constant and Homogeneous Electromagnetic Fields
11 pages
null
10.1393/ncc/i2011-10973-y
null
hep-ph
http://creativecommons.org/licenses/by/3.0/
The process of pair creation by a photon in a constant and homogeneous electromagnetic field of an arbitrary configuration is investigating. At high energy the correction to the standard quasiclassical approximation (SQA) has been calculated. In the region of intermediate photon energies where SQA is inapplicable the...
[ { "created": "Thu, 17 Feb 2011 07:11:34 GMT", "version": "v1" } ]
2022-03-02
[ [ "Katkov", "V. M.", "" ] ]
The process of pair creation by a photon in a constant and homogeneous electromagnetic field of an arbitrary configuration is investigating. At high energy the correction to the standard quasiclassical approximation (SQA) has been calculated. In the region of intermediate photon energies where SQA is inapplicable the n...
1003.1139
Norbert Kaiser
N. Kaiser
Radiative corrections to real and virtual muon Compton scattering revisited
20 pages, 10 figure, to be published in Nuclear Physics A
Nucl.Phys.A837:87-109,2010
10.1016/j.nuclphysa.2010.02.008
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate in closed analytical form the one-photon loop radiative corrections to muon Compton scattering $\mu^- \gamma \to \mu^- \gamma $. Ultraviolet and infrared divergencies are both treated in dimensional regularization. Infrared finiteness of the (virtual) radiative corrections is achieved (in the standard wa...
[ { "created": "Thu, 4 Mar 2010 21:02:21 GMT", "version": "v1" } ]
2010-05-28
[ [ "Kaiser", "N.", "" ] ]
We calculate in closed analytical form the one-photon loop radiative corrections to muon Compton scattering $\mu^- \gamma \to \mu^- \gamma $. Ultraviolet and infrared divergencies are both treated in dimensional regularization. Infrared finiteness of the (virtual) radiative corrections is achieved (in the standard way)...
2209.08393
Carlos Henrique de Lima
Carlos Henrique de Lima and Heather E. Logan
Unavoidable Higgs coupling deviations in the $Z_2$-symmetric Georgi-Machacek model
30 pages, 11 figures. small updates to references and discussion, version accepted for publication in PRD
null
10.1103/PhysRevD.106.115020
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
The $Z_{2}$-symmetric version of the Georgi-Machacek model does not possess a decoupling limit in which all the new particles can be made arbitrarily heavy, opening the possibility that the model can be entirely excluded if experiments reveal no deviations from the Standard Model. We explore this model, focusing on t...
[ { "created": "Sat, 17 Sep 2022 19:15:51 GMT", "version": "v1" }, { "created": "Tue, 22 Nov 2022 20:14:59 GMT", "version": "v2" } ]
2023-01-04
[ [ "de Lima", "Carlos Henrique", "" ], [ "Logan", "Heather E.", "" ] ]
The $Z_{2}$-symmetric version of the Georgi-Machacek model does not possess a decoupling limit in which all the new particles can be made arbitrarily heavy, opening the possibility that the model can be entirely excluded if experiments reveal no deviations from the Standard Model. We explore this model, focusing on the...
2307.15537
Zhijie Zhao
Zhijie Zhao, Mikael Berggren, Jenny List
Tuning Pythia8 for future $e^+e^-$ colliders
8 pages, 7 figures, 1 table. Talk presented at the International Workshop on Future Linear Colliders (LCWS 2023), 15-19 May 2023. C23-05-15.3
null
null
ILD-PHYS-PROC-2023-002, DESY-23-111
hep-ph
http://creativecommons.org/publicdomain/zero/1.0/
The majority of Monte-Carlo (MC) simulation campaigns for future $e^+e^-$ colliders has so far been based on the leading-order (LO) matrix elements provided by Whizard 1.95, followed by parton shower and hadronization in Pythia6, using the tune of the OPAL experiment at LEP. In this contribution, we test and develop ...
[ { "created": "Fri, 28 Jul 2023 13:01:20 GMT", "version": "v1" }, { "created": "Fri, 18 Aug 2023 09:13:43 GMT", "version": "v2" }, { "created": "Thu, 31 Aug 2023 09:13:23 GMT", "version": "v3" } ]
2023-09-01
[ [ "Zhao", "Zhijie", "" ], [ "Berggren", "Mikael", "" ], [ "List", "Jenny", "" ] ]
The majority of Monte-Carlo (MC) simulation campaigns for future $e^+e^-$ colliders has so far been based on the leading-order (LO) matrix elements provided by Whizard 1.95, followed by parton shower and hadronization in Pythia6, using the tune of the OPAL experiment at LEP. In this contribution, we test and develop th...
0903.4285
Emil Avsar
Emil Avsar, Yoshitaka Hatta, Toshihiro Matsuo
Soft gluons away from jets: distribution and correlation
25 pages, v2: minor corrections, to be published in jhep
JHEP 0906:011,2009
10.1088/1126-6708/2009/06/011
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recently, an exact conformal mapping between soft gluons emitted from jets at large angle in e+e- annihilation and those in the BFKL evolution of a high energy hadron has been proposed. We elucidate some remarkable aspects of this correspondence and use them to analytically compute the distribution and correlation of...
[ { "created": "Wed, 25 Mar 2009 14:32:31 GMT", "version": "v1" }, { "created": "Fri, 22 May 2009 12:12:06 GMT", "version": "v2" } ]
2010-02-25
[ [ "Avsar", "Emil", "" ], [ "Hatta", "Yoshitaka", "" ], [ "Matsuo", "Toshihiro", "" ] ]
Recently, an exact conformal mapping between soft gluons emitted from jets at large angle in e+e- annihilation and those in the BFKL evolution of a high energy hadron has been proposed. We elucidate some remarkable aspects of this correspondence and use them to analytically compute the distribution and correlation of g...
hep-ph/0703061
Taku Gunji
T. Gunji, H. Hamagaki, T. Hatsuda and T. Hirano
Onset of $J/\psi$ Melting in Quark-Gluon Fluid at RHIC
5 pages, 5 figures, Submitted to Phys. Rev. C. (Rapid Communication)
Phys.Rev.C76:051901,2007
10.1103/PhysRevC.76.051901
TKYNT-07-06, CNS-REP-70
hep-ph nucl-th
null
A strong $J/\psi$ suppression in central Au+Au collisions has been observed by the PHENIX experiment at the Relativistic Heavy Ion Collider (RHIC). We develop a hydro+$J/\psi$ model in which hot quark-gluon matter is described by the full (3+1)-dimensional relativistic hydrodynamics and $J/\psi$ is treated as an impu...
[ { "created": "Tue, 6 Mar 2007 15:27:01 GMT", "version": "v1" }, { "created": "Fri, 6 Jul 2007 05:51:54 GMT", "version": "v2" } ]
2008-11-26
[ [ "Gunji", "T.", "" ], [ "Hamagaki", "H.", "" ], [ "Hatsuda", "T.", "" ], [ "Hirano", "T.", "" ] ]
A strong $J/\psi$ suppression in central Au+Au collisions has been observed by the PHENIX experiment at the Relativistic Heavy Ion Collider (RHIC). We develop a hydro+$J/\psi$ model in which hot quark-gluon matter is described by the full (3+1)-dimensional relativistic hydrodynamics and $J/\psi$ is treated as an impuri...
2305.01491
Julia Panteleeva
J. Yu. Panteleeva, E. Epelbaum, J. Gegelia, U.-G. Mei{\ss}ner
Electromagnetic and gravitational local spatial densities for spin-1 systems
null
null
10.1007/JHEP07(2023)237
null
hep-ph hep-th
http://creativecommons.org/licenses/by/4.0/
The matrix elements of the electromagnetic current and the energy-momentum tensor for sharply localized states of spin-1 systems are considered. Their interpretation as local spatial densities of various characteristics of the considered system is discussed.
[ { "created": "Tue, 2 May 2023 15:13:56 GMT", "version": "v1" } ]
2023-08-16
[ [ "Panteleeva", "J. Yu.", "" ], [ "Epelbaum", "E.", "" ], [ "Gegelia", "J.", "" ], [ "Meißner", "U. -G.", "" ] ]
The matrix elements of the electromagnetic current and the energy-momentum tensor for sharply localized states of spin-1 systems are considered. Their interpretation as local spatial densities of various characteristics of the considered system is discussed.
hep-ph/9912544
Miroslav Pardy
Miroslav Pardy (Department of Theoretical Physics, Masaryk University, Brno, Czech Republic)
The Cherenkov effect with massive photons
13 pages
Int.J.Theor.Phys. 41 (2002) 887-901
null
MUNI 99-11
hep-ph
null
The equations of massive electrodynamics are derived and the power spectrum formula for the Cherenkov radiation of massive photons is found. The Cherenkov power spectrum is determined also for the two-charge system. It is argued that the massive Cherenkov effect can be observed in superconductive media, ionosphere pl...
[ { "created": "Thu, 30 Dec 1999 00:54:20 GMT", "version": "v1" } ]
2007-05-23
[ [ "Pardy", "Miroslav", "", "Department of Theoretical Physics, Masaryk University,\n Brno, Czech Republic" ] ]
The equations of massive electrodynamics are derived and the power spectrum formula for the Cherenkov radiation of massive photons is found. The Cherenkov power spectrum is determined also for the two-charge system. It is argued that the massive Cherenkov effect can be observed in superconductive media, ionosphere plas...
2404.08000
Ruggero Caravita Dr
Ruggero Caravita
Perspectives from a cold antideuteron beam in the AD/ELENA facility
null
null
null
null
hep-ph nucl-ex physics.acc-ph physics.atom-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The perspectives opened by the development of a low-energy antideuteron beam are here reviewed: precision measurements of the antideuteron properties; formation and spectroscopic analysis of antideuteronic atoms and antideuterium; the pioneering synthesis of heavier anti-elements in particle traps and at low energies...
[ { "created": "Sun, 7 Apr 2024 23:03:36 GMT", "version": "v1" } ]
2024-04-15
[ [ "Caravita", "Ruggero", "" ] ]
The perspectives opened by the development of a low-energy antideuteron beam are here reviewed: precision measurements of the antideuteron properties; formation and spectroscopic analysis of antideuteronic atoms and antideuterium; the pioneering synthesis of heavier anti-elements in particle traps and at low energies. ...
hep-ph/9802371
Yoshio Koide
Yoshio Koide
Coupling Constants Evolution in a Universal Seesaw Mass Matrix Model
LaTex, 21 pages, 3 Postscript figures. Title was changed
Phys.Rev.D58:053008,1998
10.1103/PhysRevD.58.053008
US-98-02/Revised
hep-ph
null
Stimulated by a universal seesaw mass matrix model which can successfully give quark masses and CKM matrix elements in terms of charged lepton masses, the evolution of the seesaw mass matrices is investigated. Especially, an investigation is made as to whether the evolution can constrain the necessary intermediate sc...
[ { "created": "Fri, 20 Feb 1998 02:22:16 GMT", "version": "v1" }, { "created": "Fri, 22 May 1998 11:23:04 GMT", "version": "v2" } ]
2014-11-17
[ [ "Koide", "Yoshio", "" ] ]
Stimulated by a universal seesaw mass matrix model which can successfully give quark masses and CKM matrix elements in terms of charged lepton masses, the evolution of the seesaw mass matrices is investigated. Especially, an investigation is made as to whether the evolution can constrain the necessary intermediate scal...
hep-ph/0607044
Vladimir Nikolaenko
V.Dorofeev, R.Dzheliadin, A.Ekimov, A.Fenyuk, Yu.Gavrilov, Yu.Gouz, A.Ivashin, V.Kabachenko, I.Kachaev, A.Karyukhin, Yu.Khokhlov, A.Konoplyannikov, V.Konstantinov, M.Makouski, V.Matveev, V.Nikolaenko, A.Ostankov, B.Polyakov, D.Ryabchikov, S.Shushkevich, A.A.Solodkov, A.V.Solodkov, O.Solovianov, E.Starchenko, A....
Study of $\eta'\to\eta\pi^+\pi^-$ Dalitz plot
9 pages, 4 figures, submitted to Physics Letters B
Phys.Lett.B651:22-26,2007
10.1016/j.physletb.2007.05.060
null
hep-ph
null
Dalitz plot of the $\eta' \to \eta\pi^+\pi^-$ decay is studied using the data collected with the VES spectrometer in two different exclusive reactions. The coefficients for the matrix element squared decomposition are measured on the largest statistics of $\eta'$ decays reported so far.
[ { "created": "Tue, 4 Jul 2006 17:36:01 GMT", "version": "v1" } ]
2008-11-26
[ [ "Dorofeev", "V.", "" ], [ "Dzheliadin", "R.", "" ], [ "Ekimov", "A.", "" ], [ "Fenyuk", "A.", "" ], [ "Gavrilov", "Yu.", "" ], [ "Gouz", "Yu.", "" ], [ "Ivashin", "A.", "" ], [ "Kabachenko", "V....
Dalitz plot of the $\eta' \to \eta\pi^+\pi^-$ decay is studied using the data collected with the VES spectrometer in two different exclusive reactions. The coefficients for the matrix element squared decomposition are measured on the largest statistics of $\eta'$ decays reported so far.
2003.02950
Carlos Alberto Vaquera-Araujo
Julio Leite, Am\'erica Morales, Jos\'e W. F. Valle, Carlos A. Vaquera-Araujo
Scotogenic dark matter and Dirac neutrinos from unbroken gauged $B-L$ symmetry
9 pages, 3 tables, 1 figure
null
10.1016/j.physletb.2020.135537
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a simple extension of the standard model where neutrinos get naturally small "scotogenic" Dirac masses from an unbroken gauged $B-L$ symmetry, ensuring dark matter stability. The associated gauge boson gets mass through the Stueckelberg mechanism. Two scenarios are identified, and the resulting phenomenolo...
[ { "created": "Thu, 5 Mar 2020 22:36:10 GMT", "version": "v1" }, { "created": "Tue, 14 Jul 2020 17:09:40 GMT", "version": "v2" } ]
2020-07-15
[ [ "Leite", "Julio", "" ], [ "Morales", "América", "" ], [ "Valle", "José W. F.", "" ], [ "Vaquera-Araujo", "Carlos A.", "" ] ]
We propose a simple extension of the standard model where neutrinos get naturally small "scotogenic" Dirac masses from an unbroken gauged $B-L$ symmetry, ensuring dark matter stability. The associated gauge boson gets mass through the Stueckelberg mechanism. Two scenarios are identified, and the resulting phenomenology...
1712.04571
Juan Guerrero
Juan V. Guerrero and Alberto Accardi
Hadron Mass Effects: Kaons at HERMES vs. COMPASS
9 pages, 4 figures. Talk at the 2017 QCD Evolution Workshop
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Experimental data for integrated kaon multiplicities taken at HERMES and COMPASS measurements look incompatible with each other. In this talk, we investigate the effects of hadron masses calculated at leading-order and leading twist at the kinematics of these two experiments. We present evidence that Hadron Mass Corr...
[ { "created": "Tue, 12 Dec 2017 23:54:47 GMT", "version": "v1" } ]
2017-12-14
[ [ "Guerrero", "Juan V.", "" ], [ "Accardi", "Alberto", "" ] ]
Experimental data for integrated kaon multiplicities taken at HERMES and COMPASS measurements look incompatible with each other. In this talk, we investigate the effects of hadron masses calculated at leading-order and leading twist at the kinematics of these two experiments. We present evidence that Hadron Mass Correc...
hep-ph/9812357
Robert Harlander
R. Harlander and M. Steinhauser
Automatic Computation of Feynman Diagrams
Latex, 62 pages. Typos corrected, references updated and some comments added. Vertical offset changed. The complete paper is also available via anonymous ftp at ftp://ttpux2.physik.uni-karlsruhe.de/ttp98/ttp98-41/ or via www at http://www-ttp.physik.uni-karlsruhe.de/Preprints/
Prog.Part.Nucl.Phys.43:167-228,1999
10.1016/S0146-6410(99)00095-2
TTP98-41, BUTP-98/28
hep-ph
null
Quantum corrections significantly influence the quantities observed in modern particle physics. The corresponding theoretical computations are usually quite lengthy which makes their automation mandatory. This review reports on the current status of automatic calculation of Feynman diagrams in particle physics. The m...
[ { "created": "Mon, 14 Dec 1998 16:16:42 GMT", "version": "v1" }, { "created": "Tue, 2 Mar 1999 12:31:47 GMT", "version": "v2" } ]
2011-08-17
[ [ "Harlander", "R.", "" ], [ "Steinhauser", "M.", "" ] ]
Quantum corrections significantly influence the quantities observed in modern particle physics. The corresponding theoretical computations are usually quite lengthy which makes their automation mandatory. This review reports on the current status of automatic calculation of Feynman diagrams in particle physics. The mos...
1210.4945
Grigory Ovanesyan
Grigory Ovanesyan
Medium-induced splitting kernels from SCET_G
4 pages, 2figures, proceedings of QM2012
null
10.1016/j.nuclphysa.2013.02.179
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Using the framework of soft-collinear effective theory with Glauber gluons ($\SCETG$), we evaluate medium-induced splitting kernels. Because of the power counting of the effective theory, our results are valid for arbitrary, not necessarily small values of the energy fraction $x$ taken by the emitted parton. In this ...
[ { "created": "Wed, 17 Oct 2012 20:11:16 GMT", "version": "v1" } ]
2015-06-11
[ [ "Ovanesyan", "Grigory", "" ] ]
Using the framework of soft-collinear effective theory with Glauber gluons ($\SCETG$), we evaluate medium-induced splitting kernels. Because of the power counting of the effective theory, our results are valid for arbitrary, not necessarily small values of the energy fraction $x$ taken by the emitted parton. In this fr...
2108.03199
Giacomo Boldrini
Riccardo Bellan, Giacomo Boldrini, Daniele Brambilla, Ilaria Brivio, Riccardo Brusa, Flavia Cetorelli, Marco Chiusi, Roberto Covarelli, Vittorio Del Tatto, Pietro Govoni, Andrea Massironi, Leonardo Olivi, Giacomo Ortona, Giorgio Pizzati, Alessandro Tarabini, Antonio Vagnerini, Elena Vernazza, Jie Xiao
A sensitivity study of VBS and diboson WW to dimension-6 EFT operators at the LHC
Final version after editor's revision. Improved text descriptions and plots styling. Added subparagraph in chapter 5.1 discussing the impact of SMEFT corrections in propagators which was previously ignored
JHEP05(2022)039
10.1007/JHEP05(2022)039
VBSCAN-PUB-05-21
hep-ph
http://creativecommons.org/licenses/by-nc-nd/4.0/
We present a parton-level study of electro-weak production of vector-boson pairs at the Large Hadron Collider, establishing the sensitivity to a set of dimension-six operators in the Standard Model Effective Field Theory (SMEFT). Different final states are statistically combined, and we discuss how the orthogonality ...
[ { "created": "Fri, 6 Aug 2021 16:42:22 GMT", "version": "v1" }, { "created": "Mon, 17 Jan 2022 16:50:27 GMT", "version": "v2" }, { "created": "Mon, 11 Apr 2022 08:38:06 GMT", "version": "v3" } ]
2022-06-14
[ [ "Bellan", "Riccardo", "" ], [ "Boldrini", "Giacomo", "" ], [ "Brambilla", "Daniele", "" ], [ "Brivio", "Ilaria", "" ], [ "Brusa", "Riccardo", "" ], [ "Cetorelli", "Flavia", "" ], [ "Chiusi", "Marco", "" ]...
We present a parton-level study of electro-weak production of vector-boson pairs at the Large Hadron Collider, establishing the sensitivity to a set of dimension-six operators in the Standard Model Effective Field Theory (SMEFT). Different final states are statistically combined, and we discuss how the orthogonality an...
2201.06890
Jeonghyeon Song
Kingman Cheung, Adil Jueid, Jinheung Kim, Soojin Lee, Chih-Ting Lu, and Jeonghyeon Song
Comprehensive study of the light charged Higgs boson in the type-I two-Higgs-doublet model
The final version to appear in PRD
null
10.1103/PhysRevD.105.095044
KIAS-Q22002
hep-ph
http://creativecommons.org/licenses/by/4.0/
In the type-I two-Higgs-doublet model, existing theoretical and experimental constraints still permit the light charged Higgs boson with a mass below the top quark mass. We present a complete roadmap for the light charged Higgs boson at the LHC through the comprehensive phenomenology study, focusing on the normal sce...
[ { "created": "Tue, 18 Jan 2022 11:46:28 GMT", "version": "v1" }, { "created": "Mon, 23 May 2022 06:53:31 GMT", "version": "v2" } ]
2022-06-08
[ [ "Cheung", "Kingman", "" ], [ "Jueid", "Adil", "" ], [ "Kim", "Jinheung", "" ], [ "Lee", "Soojin", "" ], [ "Lu", "Chih-Ting", "" ], [ "Song", "Jeonghyeon", "" ] ]
In the type-I two-Higgs-doublet model, existing theoretical and experimental constraints still permit the light charged Higgs boson with a mass below the top quark mass. We present a complete roadmap for the light charged Higgs boson at the LHC through the comprehensive phenomenology study, focusing on the normal scena...
2203.05484
Tong Li
Tao Han, Tong Li, Xing Wang
Axion-Like Particles at High Energy Muon Colliders -- A White paper for Snowmass 2021
16 pages, 4 figures. Contribution to Snowmass 2021
null
null
PITT-PACC-2202
hep-ph
http://creativecommons.org/licenses/by/4.0/
We study the discovery potential for heavy axion-like particles (ALPs) and the perspectives for determining their coupling properties at a muon collider. Focusing on their couplings to the Standard Model (SM) gauge bosons $\gamma, Z, W^\pm$, we show that a high-energy muon collider can substantially extend the mass c...
[ { "created": "Thu, 10 Mar 2022 17:06:01 GMT", "version": "v1" } ]
2022-03-11
[ [ "Han", "Tao", "" ], [ "Li", "Tong", "" ], [ "Wang", "Xing", "" ] ]
We study the discovery potential for heavy axion-like particles (ALPs) and the perspectives for determining their coupling properties at a muon collider. Focusing on their couplings to the Standard Model (SM) gauge bosons $\gamma, Z, W^\pm$, we show that a high-energy muon collider can substantially extend the mass cov...
hep-ph/9807275
Jose Ramon Espinosa
J.R. Espinosa (CERN) and J.F. Gunion (UC Davis)
A No-Lose Theorem for Higgs Searches at a Future Linear Collider
4 pages, LaTeX
Phys.Rev.Lett.82:1084-1087,1999
10.1103/PhysRevLett.82.1084
CERN-TH/98-225, UCD-98-12, IEM-FT-176/98
hep-ph
null
Assuming perturbativity up to a high energy scale $\sim 10^{16}$ GeV, we demonstrate that a future $e^+e^-$ linear collider operating at $\sqrt{s} =$ 500 GeV with $\int{\cal L}=$ 500 fb$^{-1}$ per year (such as the recently proposed TESLA facility) will detect a Higgs boson signal regardless of the complexity of the ...
[ { "created": "Tue, 7 Jul 1998 13:42:27 GMT", "version": "v1" } ]
2008-11-26
[ [ "Espinosa", "J. R.", "", "CERN" ], [ "Gunion", "J. F.", "", "UC Davis" ] ]
Assuming perturbativity up to a high energy scale $\sim 10^{16}$ GeV, we demonstrate that a future $e^+e^-$ linear collider operating at $\sqrt{s} =$ 500 GeV with $\int{\cal L}=$ 500 fb$^{-1}$ per year (such as the recently proposed TESLA facility) will detect a Higgs boson signal regardless of the complexity of the Hi...
hep-ph/9609410
Liu Chun
Chun Liu
Phenomenology of A Supersymmetric Model for Fermion Mass Hierarchy
13 pages, latex, two figures, substantially revised
Mod.Phys.Lett. A12 (1997) 329-336
10.1142/S0217732397000339
SNUTP 96-095
hep-ph
null
Some phenomenological aspects of a supersymmetric model for fermion mass hierarchy proposed previously are discussed. It is required that the lepton universality violation is near to its current experimental bound. The lepton number violation decay modes $\tau \to 2e\mu$ and $3\mu$ maybe observable in the near future...
[ { "created": "Thu, 19 Sep 1996 14:35:30 GMT", "version": "v1" }, { "created": "Thu, 20 Feb 1997 11:50:09 GMT", "version": "v2" } ]
2009-10-28
[ [ "Liu", "Chun", "" ] ]
Some phenomenological aspects of a supersymmetric model for fermion mass hierarchy proposed previously are discussed. It is required that the lepton universality violation is near to its current experimental bound. The lepton number violation decay modes $\tau \to 2e\mu$ and $3\mu$ maybe observable in the near future. ...
1201.6187
Sergey Troshin
S. M. Troshin, N. E. Tyurin
On the possible decoherence observed at \sqrt{s}=7 TeV
4 pages, 2 figures
Mod. Phys. Lett. A, Vol. 27, No. 14 (2012) 1271001
10.1142/S0217732312710010
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We briefly discuss the possible decoherence observed at the LHC emphasizing that the value of the average transverse momentum at \sqrt{s}=7 TeV can be interpreted as a manifestation of the deviation from the mechanism of the transient state of rotating matter.
[ { "created": "Mon, 30 Jan 2012 11:55:47 GMT", "version": "v1" } ]
2012-04-25
[ [ "Troshin", "S. M.", "" ], [ "Tyurin", "N. E.", "" ] ]
We briefly discuss the possible decoherence observed at the LHC emphasizing that the value of the average transverse momentum at \sqrt{s}=7 TeV can be interpreted as a manifestation of the deviation from the mechanism of the transient state of rotating matter.
1609.05028
Yuta Hamada
Yuta Hamada, Ryuichiro Kitano
Primordial Lepton Oscillations and Baryogenesis
10 pages; published version(v2)
null
10.1007/JHEP11(2016)010
KEK-TH-1932, MAD-TH-16-06
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The baryon asymmetry of the Universe should have been produced after the inflation era. We consider the possibility that the asymmetry is generated by the flavor oscillations in the reheating process after inflation, so that the baryon asymmetry is realized already at the beginning of the radiation dominated era. In ...
[ { "created": "Fri, 16 Sep 2016 12:42:26 GMT", "version": "v1" }, { "created": "Sat, 29 Oct 2016 03:25:19 GMT", "version": "v2" } ]
2016-11-10
[ [ "Hamada", "Yuta", "" ], [ "Kitano", "Ryuichiro", "" ] ]
The baryon asymmetry of the Universe should have been produced after the inflation era. We consider the possibility that the asymmetry is generated by the flavor oscillations in the reheating process after inflation, so that the baryon asymmetry is realized already at the beginning of the radiation dominated era. In th...
2309.05860
Garv Chauhan
Garv Chauhan, Shunsaku Horiuchi, Patrick Huber, Ian M. Shoemaker
Low-Energy Supernovae Bounds on Sterile Neutrinos
7 pages, 3 figures, 1 table
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Sterile neutrinos can be produced through mixing with active neutrinos in the hot and dense core of a core-collapse supernova (SN). The standard bounds on the active-sterile mixing ($\sin^2 \theta$) from SN arise from SN1987A energy-loss, requiring $E_{\text{loss}}<10^{52}~{\rm erg}$. In this letter, we discuss a nov...
[ { "created": "Mon, 11 Sep 2023 22:50:26 GMT", "version": "v1" } ]
2023-09-13
[ [ "Chauhan", "Garv", "" ], [ "Horiuchi", "Shunsaku", "" ], [ "Huber", "Patrick", "" ], [ "Shoemaker", "Ian M.", "" ] ]
Sterile neutrinos can be produced through mixing with active neutrinos in the hot and dense core of a core-collapse supernova (SN). The standard bounds on the active-sterile mixing ($\sin^2 \theta$) from SN arise from SN1987A energy-loss, requiring $E_{\text{loss}}<10^{52}~{\rm erg}$. In this letter, we discuss a novel...
hep-ph/9803364
Alexander Makhlin
A. Makhlin and E. Surdutovich (Wayne State University)
Scenario for Ultrarelativistic Nuclear Collisions: Space--Time Picture of Quantum Fluctuations and the Birth of QGP
54 pages, 11 Postscript figures, uses RevTeX
Phys.Rev.C58:389-425,1998
10.1103/PhysRevC.58.389
WSU-NP-2-1998
hep-ph nucl-th
null
We study the dynamics of quantum fluctuations which take place at the earliest stage of high-energy processes and the conditions under which the data from e-p deep-inelastic scattering may serve as an input for computing the initial data for heavy-ion collisions at high energies. Our method is essentially based on th...
[ { "created": "Mon, 16 Mar 1998 22:10:43 GMT", "version": "v1" } ]
2008-11-26
[ [ "Makhlin", "A.", "", "Wayne State University" ], [ "Surdutovich", "E.", "", "Wayne State University" ] ]
We study the dynamics of quantum fluctuations which take place at the earliest stage of high-energy processes and the conditions under which the data from e-p deep-inelastic scattering may serve as an input for computing the initial data for heavy-ion collisions at high energies. Our method is essentially based on the ...
1008.5328
Xingbo Zhao
Xingbo Zhao, Ralf Rapp
Charmonium in Medium: From Correlators to Experiment
18 pages, 30 figures
Phys.Rev.C82:064905,2010
10.1103/PhysRevC.82.064905
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We set up a framework in which in-medium charmonium properties are constrained by thermal lattice QCD and subsequently implemented into a thermal rate equation enabling the comparison with experimental data in heavy-ion collisions. Specifically, we evaluate phenomenological consequences for charmonium production orig...
[ { "created": "Tue, 31 Aug 2010 14:43:04 GMT", "version": "v1" } ]
2011-01-28
[ [ "Zhao", "Xingbo", "" ], [ "Rapp", "Ralf", "" ] ]
We set up a framework in which in-medium charmonium properties are constrained by thermal lattice QCD and subsequently implemented into a thermal rate equation enabling the comparison with experimental data in heavy-ion collisions. Specifically, we evaluate phenomenological consequences for charmonium production origin...
1709.07882
Simon Knapen
Simon Knapen, Tongyan Lin, Kathryn M. Zurek
Light Dark Matter: Models and Constraints
44 pages, 13 figures, reference added and minor updates to some of the constraints, conclusions unchanged
Phys. Rev. D 96, 115021 (2017)
10.1103/PhysRevD.96.115021
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the direct detection prospects for a representative set of simplified models of sub-GeV dark matter (DM), accounting for existing terrestrial, astrophysical and cosmological constraints. We focus on dark matter lighter than an MeV, where these constraints are most stringent, and find three scenarios with acc...
[ { "created": "Fri, 22 Sep 2017 18:00:03 GMT", "version": "v1" }, { "created": "Tue, 31 Oct 2017 00:24:07 GMT", "version": "v2" } ]
2018-01-03
[ [ "Knapen", "Simon", "" ], [ "Lin", "Tongyan", "" ], [ "Zurek", "Kathryn M.", "" ] ]
We study the direct detection prospects for a representative set of simplified models of sub-GeV dark matter (DM), accounting for existing terrestrial, astrophysical and cosmological constraints. We focus on dark matter lighter than an MeV, where these constraints are most stringent, and find three scenarios with acces...
hep-ph/9408395
null
A.L. Kataev and V.V. Starshenko
Estimates of the higher-order QCD corrections: Theory and Applications
revised version and improved version of CERN.TH-7400/94, LATEX 10 pages, six-loop estimates for R(s) in Table 2 are revised, thanks to J. Ellis for pointing numerical shortcomings (general formulae are non-affected). Details of derivations of six-loop estimates for R_tau are presented
Nucl.Phys.Proc.Suppl. 39BC (1995) 312-317
10.1016/0920-5632(95)00094-P
null
hep-ph
null
We consider the further development of the formalism of the estimates of higher-order perturbative corrections in the Euclidean region, which is based on the application of the scheme-invariant methods, namely the principle of minimal sensitivity and the effective charges approach. We present the estimates of the ord...
[ { "created": "Tue, 30 Aug 1994 21:37:21 GMT", "version": "v1" }, { "created": "Thu, 15 Sep 1994 16:55:09 GMT", "version": "v2" } ]
2009-10-28
[ [ "Kataev", "A. L.", "" ], [ "Starshenko", "V. V.", "" ] ]
We consider the further development of the formalism of the estimates of higher-order perturbative corrections in the Euclidean region, which is based on the application of the scheme-invariant methods, namely the principle of minimal sensitivity and the effective charges approach. We present the estimates of the order...
1409.6959
Jian Wang
Li Lin Yang, Chong Sheng Li, Jun Gao and Jian Wang
NNLL momentum-space threshold resummation in direct top quark production at the LHC
17 pages, 5 figures, version published in JHEP. v3: two plots in Fig.1 replaced, with nothing else changed
JHEP12(2014)123
10.1007/JHEP12(2014)123
MITP/14-068
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We update the theoretical precision of the total cross section for direct top quark production at the LHC by extending the threshold resummation to the next-to-next-to-leading logarithmic accuracy.
[ { "created": "Wed, 24 Sep 2014 13:43:49 GMT", "version": "v1" }, { "created": "Thu, 18 Dec 2014 19:29:28 GMT", "version": "v2" }, { "created": "Thu, 19 Mar 2015 16:51:38 GMT", "version": "v3" }, { "created": "Fri, 20 Mar 2015 10:03:15 GMT", "version": "v4" } ]
2015-03-23
[ [ "Yang", "Li Lin", "" ], [ "Li", "Chong Sheng", "" ], [ "Gao", "Jun", "" ], [ "Wang", "Jian", "" ] ]
We update the theoretical precision of the total cross section for direct top quark production at the LHC by extending the threshold resummation to the next-to-next-to-leading logarithmic accuracy.
hep-ph/9812410
Markus Thoma
Andreas Schaefer, Markus H. Thoma
Gluon Condensate and Parton Propagation in a Quark-Gluon Plasma
5 pages, LATEX, 2 PostScript figures, to be published in the proceedings of the workshop "Strong and Electroweak Matter" (Copenhagen, 2-5 December 1998)
null
null
null
hep-ph nucl-th
null
A calculation of the thermal quark propagator is presented taking the gluon condensate above the critical temperature into account. The quark dispersion relation following from this propagator is derived.
[ { "created": "Thu, 17 Dec 1998 13:35:41 GMT", "version": "v1" } ]
2007-05-23
[ [ "Schaefer", "Andreas", "" ], [ "Thoma", "Markus H.", "" ] ]
A calculation of the thermal quark propagator is presented taking the gluon condensate above the critical temperature into account. The quark dispersion relation following from this propagator is derived.
2208.14464
Jason Arakawa
Jason Arakawa, Arvind Rajaraman, Taotao Sui, Tim M.P. Tait
Probing Muon $g-2$ at a Future Muon Collider
5 pages, 6 figures, 2 tables. Added additional plots and table
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
The $4.2\sigma$ discrepancy in the $(g-2)$ of the muon provides a hint that may indicate that physics beyond the standard model is at play. A multi-TeV scale muon collider provides a natural testing ground for this physics. In this paper, we discuss the potential to probe the BSM parameter space that is consistent wi...
[ { "created": "Tue, 30 Aug 2022 18:00:08 GMT", "version": "v1" }, { "created": "Mon, 22 Jan 2024 19:05:48 GMT", "version": "v2" } ]
2024-01-24
[ [ "Arakawa", "Jason", "" ], [ "Rajaraman", "Arvind", "" ], [ "Sui", "Taotao", "" ], [ "Tait", "Tim M. P.", "" ] ]
The $4.2\sigma$ discrepancy in the $(g-2)$ of the muon provides a hint that may indicate that physics beyond the standard model is at play. A multi-TeV scale muon collider provides a natural testing ground for this physics. In this paper, we discuss the potential to probe the BSM parameter space that is consistent with...
1707.04374
Martin Spinrath
Jung Chang, Kingman Cheung, Hiroyuki Ishida, Chih-Ting Lu, Martin Spinrath and Yue-Lin Sming Tsai
A supersymmetric electroweak scale seesaw model
20 pages, 1 figure; version published in JHEP
JHEP 10 (2017) 039
10.1007/JHEP10(2017)039
NCTS-PH/1722
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we propose a novel supersymmetric inverse seesaw model which has only one additional $Z_6$ symmetry. The field content is minimal to get a viable neutrino spectrum at tree-level. Interestingly, the inverse seesaw scale in our model is related to the scale of electroweak symmetry breaking. Due to that or...
[ { "created": "Fri, 14 Jul 2017 03:04:33 GMT", "version": "v1" }, { "created": "Mon, 9 Oct 2017 09:52:25 GMT", "version": "v2" } ]
2017-10-10
[ [ "Chang", "Jung", "" ], [ "Cheung", "Kingman", "" ], [ "Ishida", "Hiroyuki", "" ], [ "Lu", "Chih-Ting", "" ], [ "Spinrath", "Martin", "" ], [ "Tsai", "Yue-Lin Sming", "" ] ]
In this paper we propose a novel supersymmetric inverse seesaw model which has only one additional $Z_6$ symmetry. The field content is minimal to get a viable neutrino spectrum at tree-level. Interestingly, the inverse seesaw scale in our model is related to the scale of electroweak symmetry breaking. Due to that orig...
hep-ph/9803489
Jong-Pil Lee
Jong-Phil Lee, Chun Liu and H.S. Song
Analysis of Lambda_b to Lambda_c Weak Decays in Heavy Quark Effective Theory
20 pages, latex, 4 figures, to appear in Phys. Rev. D (1998)
Phys.Rev.D58:014013,1998
10.1103/PhysRevD.58.014013
SNUTP 97-099
hep-ph
null
The Lambda_b to Lambda_c semileptonic decay is analyzed in the framework of heavy quark effective theory to the order of 1/m_c and 1/m_b. The QCD sum rule and large N_c predictions to the decay form factors are applied. It argues that the subleading baryonic Isgur-Wise function in the large N_c limit vanishes. The de...
[ { "created": "Mon, 30 Mar 1998 11:16:08 GMT", "version": "v1" } ]
2011-01-27
[ [ "Lee", "Jong-Phil", "" ], [ "Liu", "Chun", "" ], [ "Song", "H. S.", "" ] ]
The Lambda_b to Lambda_c semileptonic decay is analyzed in the framework of heavy quark effective theory to the order of 1/m_c and 1/m_b. The QCD sum rule and large N_c predictions to the decay form factors are applied. It argues that the subleading baryonic Isgur-Wise function in the large N_c limit vanishes. The deca...
2007.08029
Jun'ya Kume
Kohei Kamada, Jun'ya Kume, Yusuke Yamada
Renormalization in gravitational leptogenesis with pseudo-scalar-tensor coupling
22 pages, 3 figures; v3: published version
JCAP 10 (2020) 030
10.1088/1475-7516/2020/10/030
RESCEU-12/20
hep-ph astro-ph.CO gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the renormalization in the pseudo-scalar inflation models with the gravitational Chern-Simons term. In this model, lepton asymmetry is generated from the chiral gravitational waves produced due to the Chern-Simons term through the gravitational chiral anomaly. However, it is known that the naive estimate ...
[ { "created": "Wed, 15 Jul 2020 22:55:23 GMT", "version": "v1" }, { "created": "Wed, 29 Jul 2020 02:45:59 GMT", "version": "v2" }, { "created": "Mon, 16 Nov 2020 12:18:49 GMT", "version": "v3" } ]
2020-11-17
[ [ "Kamada", "Kohei", "" ], [ "Kume", "Jun'ya", "" ], [ "Yamada", "Yusuke", "" ] ]
We consider the renormalization in the pseudo-scalar inflation models with the gravitational Chern-Simons term. In this model, lepton asymmetry is generated from the chiral gravitational waves produced due to the Chern-Simons term through the gravitational chiral anomaly. However, it is known that the naive estimate of...
hep-ph/9606419
null
Stephen Parke and Yael Shadmi (Fermilab)
Spin Correlations in Top-Quark Pair Production at $e^+e^-$ Colliders
17 pages, Revtex, 7 figures. Minor changes so as to make all archival versions consistent
Phys.Lett.B387:199-206,1996
10.1016/0370-2693(96)00998-7
Fermilab-Pub-96/042-T
hep-ph hep-ex
null
We show that top-quark pairs are produced in an essentially unique spin configuration in polarized $e^+e^-$ colliders at all energies above the threshold region. Since the directions of the electroweak decay products of polarized top-quarks are strongly correlated to the top-quark spin axis, this unique spin configur...
[ { "created": "Mon, 24 Jun 1996 21:12:42 GMT", "version": "v1" }, { "created": "Fri, 30 Aug 1996 16:41:55 GMT", "version": "v2" } ]
2011-05-05
[ [ "Parke", "Stephen", "", "Fermilab" ], [ "Shadmi", "Yael", "", "Fermilab" ] ]
We show that top-quark pairs are produced in an essentially unique spin configuration in polarized $e^+e^-$ colliders at all energies above the threshold region. Since the directions of the electroweak decay products of polarized top-quarks are strongly correlated to the top-quark spin axis, this unique spin configurat...
1110.0849
Jens Braun
Jens Braun, Bertram Klein, Bernd-Jochen Schaefer
On the Phase Structure of QCD in a Finite Volume
11 pages, 3 figures, 4 tables; minor text corrections, one figure added, appendix added, references added, matches PLB version
Phys. Lett. B713 (2012) 216-223
10.1016/j.physletb.2012.05.053
null
hep-ph hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The chiral phase transition in QCD at finite chemical potential and temperature can be characterized for small chemical potential by its curvature and the transition temperature. The curvature is accessible to QCD lattice simulations, which are always performed at finite pion masses and in finite simulation volumes. ...
[ { "created": "Tue, 4 Oct 2011 21:04:08 GMT", "version": "v1" }, { "created": "Mon, 2 Jul 2012 13:30:16 GMT", "version": "v2" } ]
2012-07-03
[ [ "Braun", "Jens", "" ], [ "Klein", "Bertram", "" ], [ "Schaefer", "Bernd-Jochen", "" ] ]
The chiral phase transition in QCD at finite chemical potential and temperature can be characterized for small chemical potential by its curvature and the transition temperature. The curvature is accessible to QCD lattice simulations, which are always performed at finite pion masses and in finite simulation volumes. We...
2202.08218
Wen-Yuan Ai
Zi-Liang Wang and Wen-Yuan Ai
Dissipation of oscillating scalar backgrounds in an FLRW universe
32 pages + appendix, 18 figures; v2: minor typos corrected; v3: clarifying comments added; v4: time-dependence of the microscopic quantities discussed, refs updated, to appear in JHEP; v5: matches the published version
JHEP 11 (2022) 075
10.1007/JHEP11(2022)075
KCL-PH-TH/2022-06
hep-ph gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the dissipation of oscillating scalar backgrounds in a spatially flat Friedmann-Lema\^{i}tre-Robertson-Walker universe using non-equilibrium quantum field theory. To be concrete, a $Z_2$-symmetric two-scalar model with quartic interactions is used. For quasi-harmonic oscillations, we adopt the multi-scale an...
[ { "created": "Wed, 16 Feb 2022 18:00:23 GMT", "version": "v1" }, { "created": "Tue, 1 Mar 2022 22:25:09 GMT", "version": "v2" }, { "created": "Mon, 18 Apr 2022 12:21:08 GMT", "version": "v3" }, { "created": "Sun, 6 Nov 2022 15:18:34 GMT", "version": "v4" }, { "cre...
2022-11-15
[ [ "Wang", "Zi-Liang", "" ], [ "Ai", "Wen-Yuan", "" ] ]
We study the dissipation of oscillating scalar backgrounds in a spatially flat Friedmann-Lema\^{i}tre-Robertson-Walker universe using non-equilibrium quantum field theory. To be concrete, a $Z_2$-symmetric two-scalar model with quartic interactions is used. For quasi-harmonic oscillations, we adopt the multi-scale anal...
1608.03356
Jia Zhou
John M. Campbell, Doreen Wackeroth, and Jia Zhou
Study of weak corrections to Drell-Yan, top-quark pair and dijet Production at high energies with MCFM
68 pages, 29 figures, matches published version
Phys. Rev. D 94, 093009 (2016)
10.1103/PhysRevD.94.093009
FERMILAB-PUB-16-314-T
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Electroweak (EW) corrections can be enhanced at high energies due to the soft or collinear radiation of virtual and real $W$ and $Z$ bosons that result in Sudakov-like corrections of the form $\alpha_W^l\log^n(Q^2/M_{W,Z}^2)$, where $\alpha_W =\alpha/(4\pi\sin^2\theta_W)$ and $n\le 2l-1$. The inclusion of EW correcti...
[ { "created": "Thu, 11 Aug 2016 03:32:52 GMT", "version": "v1" }, { "created": "Thu, 9 Feb 2017 18:33:34 GMT", "version": "v2" } ]
2017-02-10
[ [ "Campbell", "John M.", "" ], [ "Wackeroth", "Doreen", "" ], [ "Zhou", "Jia", "" ] ]
Electroweak (EW) corrections can be enhanced at high energies due to the soft or collinear radiation of virtual and real $W$ and $Z$ bosons that result in Sudakov-like corrections of the form $\alpha_W^l\log^n(Q^2/M_{W,Z}^2)$, where $\alpha_W =\alpha/(4\pi\sin^2\theta_W)$ and $n\le 2l-1$. The inclusion of EW correction...
1710.01335
Shibasis Roy
Shibasis Roy, Ria Sain, Rahul Sinha
Lepton mass effects and angular observables in $\Lambda_b \to \Lambda (\to p \pi) \ell^+\ell^-$
Typos corrected, matches published version
Phys. Rev. D 96, 116005 (2017)
10.1103/PhysRevD.96.116005
IMSc/2017/10/09
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The flavor changing rare decay $B\to K^{*}(\to K\pi)\ell^+\ell^-$ is one of the most studied modes due to its sensitivity to physics beyond the standard model and several discrepancies have come to light among the plethora of observables that are measured. In this paper we revisit the analogous baryonic decay mode $\...
[ { "created": "Tue, 3 Oct 2017 18:23:48 GMT", "version": "v1" }, { "created": "Tue, 5 Mar 2019 16:23:42 GMT", "version": "v2" } ]
2019-03-06
[ [ "Roy", "Shibasis", "" ], [ "Sain", "Ria", "" ], [ "Sinha", "Rahul", "" ] ]
The flavor changing rare decay $B\to K^{*}(\to K\pi)\ell^+\ell^-$ is one of the most studied modes due to its sensitivity to physics beyond the standard model and several discrepancies have come to light among the plethora of observables that are measured. In this paper we revisit the analogous baryonic decay mode $\La...
2105.06470
Nicholas Kamp
Stefano Vergani, Nicholas W. Kamp, Alejandro Diaz, Carlos A. Arg\"uelles, Janet M. Conrad, Michael H. Shaevitz, Melissa A. Uchida
Explaining the MiniBooNE Excess Through a Mixed Model of Oscillation and Decay
16 pages
null
10.1103/PhysRevD.104.095005
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
The electron-like excess observed by the MiniBooNE experiment is explained with a model comprising a new low mass state ($\mathcal{O}(1)$ eV) participating in neutrino oscillations and a new high mass state ($\mathcal{O}(100)$ MeV) that decays to $\nu+\gamma$. Short-baseline oscillation data sets are used to predict ...
[ { "created": "Thu, 13 May 2021 17:59:59 GMT", "version": "v1" }, { "created": "Fri, 14 May 2021 16:54:27 GMT", "version": "v2" }, { "created": "Wed, 26 May 2021 14:14:57 GMT", "version": "v3" }, { "created": "Wed, 15 Sep 2021 21:44:26 GMT", "version": "v4" }, { "c...
2021-11-17
[ [ "Vergani", "Stefano", "" ], [ "Kamp", "Nicholas W.", "" ], [ "Diaz", "Alejandro", "" ], [ "Argüelles", "Carlos A.", "" ], [ "Conrad", "Janet M.", "" ], [ "Shaevitz", "Michael H.", "" ], [ "Uchida", "Melissa A."...
The electron-like excess observed by the MiniBooNE experiment is explained with a model comprising a new low mass state ($\mathcal{O}(1)$ eV) participating in neutrino oscillations and a new high mass state ($\mathcal{O}(100)$ MeV) that decays to $\nu+\gamma$. Short-baseline oscillation data sets are used to predict th...
0901.2190
Alexandre Deur
A. Deur
The strong coupling constant at large distances
Proceedings for Spin2008 symposium. v2: added 2 referecences re. infrared fixed point
AIP Conf.Proc.1149:281-284,2009
10.1063/1.3215646
JLAB-PHY-09-935
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we discuss effective strong coupling constants. Those are well behaved in the low-Q^2 domain, contrarily to alpha_s from pQCD. We present an extraction of an effective strong coupling constant from Jefferson Lab polarized data at intermediate and low Q^2. We also show how these data, together with spin ...
[ { "created": "Thu, 15 Jan 2009 13:54:37 GMT", "version": "v1" }, { "created": "Fri, 16 Jan 2009 15:31:46 GMT", "version": "v2" } ]
2009-08-24
[ [ "Deur", "A.", "" ] ]
In this paper we discuss effective strong coupling constants. Those are well behaved in the low-Q^2 domain, contrarily to alpha_s from pQCD. We present an extraction of an effective strong coupling constant from Jefferson Lab polarized data at intermediate and low Q^2. We also show how these data, together with spin su...
hep-ph/0407318
Miranda van Iersel
M. van Iersel and B.L.G. Bakker
Bound States in the LFD Yukawa Model
Proceedings of the international workshop on: Light Cone Physics: Hadrons and Beyond, Durham (UK), August 5th-9th 2003
null
null
null
hep-ph
null
Our purpose is to calculate relativistic bound states in a quantum filed theoretical approach. We work in the Yukawa model and first calculate the bound-state equation in the ladder approximation. We discuss why this is not a complete treatment and what possibilities there are to extend this equation.
[ { "created": "Wed, 28 Jul 2004 08:55:08 GMT", "version": "v1" } ]
2007-05-23
[ [ "van Iersel", "M.", "" ], [ "Bakker", "B. L. G.", "" ] ]
Our purpose is to calculate relativistic bound states in a quantum filed theoretical approach. We work in the Yukawa model and first calculate the bound-state equation in the ladder approximation. We discuss why this is not a complete treatment and what possibilities there are to extend this equation.
1009.2510
Eric Kuflik
Eric Kuflik and Joseph Marsano
Comments on Flipped SU(5) (and F-theory)
39 pages
JHEP 1103:020,2011
10.1007/JHEP03(2011)020
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the impact of nonrenormalizable operators in flipped SU(5) that can generate a large mu term, R-parity violation, and rapid proton decay. While our motivation is to determine whether F-theory can naturally realize flipped SU(5), this analysis is general and leads to a characterization of symmetries capable o...
[ { "created": "Mon, 13 Sep 2010 20:16:33 GMT", "version": "v1" } ]
2011-03-14
[ [ "Kuflik", "Eric", "" ], [ "Marsano", "Joseph", "" ] ]
We study the impact of nonrenormalizable operators in flipped SU(5) that can generate a large mu term, R-parity violation, and rapid proton decay. While our motivation is to determine whether F-theory can naturally realize flipped SU(5), this analysis is general and leads to a characterization of symmetries capable of ...
hep-ph/9307353
Jean Cleymans
J. Cleymans, S.V. Ilyun, S.A. Smolyansky and G.M. Zinovjev
Dissipative Processes in an Expanding Massive Gluon Gas
8 pages Latex, 5 figures available as Postscript files, University of Bielefeld preprint 93/36
Z.Phys.C62:75-80,1994
10.1007/BF01559526
null
hep-ph
null
The temperature dependence of the kinetic coefficients is obtained in the non-perturbative region with the help of Green-Kubo-type formulae in the model of massive gluon gas motivated by numerical results from simulations of lattice QCD. The entropy production rate is estimated using scaling hydrodynamics. It is show...
[ { "created": "Wed, 28 Jul 1993 12:55:40 GMT", "version": "v1" } ]
2010-11-01
[ [ "Cleymans", "J.", "" ], [ "Ilyun", "S. V.", "" ], [ "Smolyansky", "S. A.", "" ], [ "Zinovjev", "G. M.", "" ] ]
The temperature dependence of the kinetic coefficients is obtained in the non-perturbative region with the help of Green-Kubo-type formulae in the model of massive gluon gas motivated by numerical results from simulations of lattice QCD. The entropy production rate is estimated using scaling hydrodynamics. It is shown ...
0708.4222
Kuang-Ta Chao
Ce Meng, Kuang-Ta Chao
$Z^+(4430)$ as a resonance in the $D_1(D_1^\prime)D^*$ channel
5 pages, 2 figures
null
null
null
hep-ph
null
We study the possibility that the $Z^+(4430)$ state observed by Belle is a $D_1D^*$ (or $D_1'D^*$) resonance in S-wave. Focusing on its decays, We find that the open-charm decay into $D^*D^*\pi$ is dominant. Furthermore, we use the re-scattering mechanism to study its hidden-charm decays and find that the re-scatteri...
[ { "created": "Thu, 30 Aug 2007 19:43:00 GMT", "version": "v1" } ]
2007-08-31
[ [ "Meng", "Ce", "" ], [ "Chao", "Kuang-Ta", "" ] ]
We study the possibility that the $Z^+(4430)$ state observed by Belle is a $D_1D^*$ (or $D_1'D^*$) resonance in S-wave. Focusing on its decays, We find that the open-charm decay into $D^*D^*\pi$ is dominant. Furthermore, we use the re-scattering mechanism to study its hidden-charm decays and find that the re-scattering...
hep-ph/9910346
Michael A. Doncheski
M. A. Doncheski and R. W. Robinett
Extra-dimensional gravity and dijet production at gamma gamma colliders
14 pages, LaTex, 1 figure (postscript) included in submission
Phys.Rev.D61:117701,2000
10.1103/PhysRevD.61.117701
PSU/TH-218
hep-ph
null
In this note, we consider dijet production at gamma gamma colliders as a probe of recently proposed, large extra-dimensional gravity models. The exchange of virtual, spin-2 graviton towers (Kaluza-Klein excitations) significantly modifies the cross section, as compared to the Standard Model predictions. We find that,...
[ { "created": "Thu, 14 Oct 1999 19:17:39 GMT", "version": "v1" } ]
2008-11-26
[ [ "Doncheski", "M. A.", "" ], [ "Robinett", "R. W.", "" ] ]
In this note, we consider dijet production at gamma gamma colliders as a probe of recently proposed, large extra-dimensional gravity models. The exchange of virtual, spin-2 graviton towers (Kaluza-Klein excitations) significantly modifies the cross section, as compared to the Standard Model predictions. We find that, i...
2104.02248
Yoshihiro Gunji
Yoshihiro Gunji, Koji Ishiwata
Subcritical hybrid inflation in a generalized superconformal model
26 pages, 12 figures; figures added, conclusion unchanged, published version
null
10.1103/PhysRevD.104.123545
KANAZAWA-21-05
hep-ph astro-ph.CO hep-th
http://creativecommons.org/licenses/by/4.0/
We study a generalized superconformal model that gives rise to a subcritical regime of $D$-term hybrid inflation. Exhibiting the model both in a Jordan frame and in the Einstein frame, the effective potential of the subcritical regime is derived in the Einstein frame. It turns out the inflaton-waterfall field dynamic...
[ { "created": "Tue, 6 Apr 2021 02:29:14 GMT", "version": "v1" }, { "created": "Thu, 6 Jan 2022 06:45:35 GMT", "version": "v2" } ]
2022-01-07
[ [ "Gunji", "Yoshihiro", "" ], [ "Ishiwata", "Koji", "" ] ]
We study a generalized superconformal model that gives rise to a subcritical regime of $D$-term hybrid inflation. Exhibiting the model both in a Jordan frame and in the Einstein frame, the effective potential of the subcritical regime is derived in the Einstein frame. It turns out the inflaton-waterfall field dynamics ...
hep-ph/0407309
A. Cooper-Sarkar
A. M. Cooper-Sarkar
An NLO QCD Analysis of Inclusive Cross-section Data and Jet Production Data from the ZEUS Experiment at HERA-I
8 pages, 9 figures, ZEUS Collaboration presentation at DIS04, Strbske Pleso,, Slovakia, April 2004
null
null
null
hep-ph hep-ex
null
The ZEUS inclusive cross-section data from HERA-I, for charged and neutral current processes, taken with $e^+$ and $e^-$ beams, have been used in a new NLO QCD analysis to extract the parton distribution functions (PDFs) of the proton within a single experiment. The precision of the high-$x$ gluon determination is im...
[ { "created": "Tue, 27 Jul 2004 15:48:44 GMT", "version": "v1" } ]
2007-05-23
[ [ "Cooper-Sarkar", "A. M.", "" ] ]
The ZEUS inclusive cross-section data from HERA-I, for charged and neutral current processes, taken with $e^+$ and $e^-$ beams, have been used in a new NLO QCD analysis to extract the parton distribution functions (PDFs) of the proton within a single experiment. The precision of the high-$x$ gluon determination is impr...
0705.3071
Swapan Majhi
Swapan Majhi
Dijet production in generic contact interaction at linear colliders
13 pages 4 figures
null
null
null
hep-ph
null
We consider dijet production at a $e^+ e^-$ collider in a class of effective theories with the relevant operators being four-fermion contact interaction. Despite the nonrenormalizable nature of the interaction, we explicitly demonstrate that calculating QCD corrections is both possible and meaningful. Calculating the...
[ { "created": "Mon, 21 May 2007 23:11:51 GMT", "version": "v1" } ]
2007-05-23
[ [ "Majhi", "Swapan", "" ] ]
We consider dijet production at a $e^+ e^-$ collider in a class of effective theories with the relevant operators being four-fermion contact interaction. Despite the nonrenormalizable nature of the interaction, we explicitly demonstrate that calculating QCD corrections is both possible and meaningful. Calculating the c...
1803.03262
Yu-Dai Tsai
Gabriel Magill, Ryan Plestid, Maxim Pospelov, Yu-Dai Tsai
Dipole portal to heavy neutral leptons
26 pages, 11 figures
Phys. Rev. D 98, 115015 (2018)
10.1103/PhysRevD.98.115015
null
hep-ph hep-ex
http://creativecommons.org/licenses/by-nc-sa/4.0/
We consider generic neutrino dipole portals between left-handed neutrinos, photons, and right-handed heavy neutral leptons (HNL) with Dirac masses. The dominance of this portal significantly alters the conventional phenomenology of HNLs. We derive a comprehensive set of constraints on the dipole portal to HNLs by uti...
[ { "created": "Thu, 8 Mar 2018 19:00:00 GMT", "version": "v1" } ]
2018-12-21
[ [ "Magill", "Gabriel", "" ], [ "Plestid", "Ryan", "" ], [ "Pospelov", "Maxim", "" ], [ "Tsai", "Yu-Dai", "" ] ]
We consider generic neutrino dipole portals between left-handed neutrinos, photons, and right-handed heavy neutral leptons (HNL) with Dirac masses. The dominance of this portal significantly alters the conventional phenomenology of HNLs. We derive a comprehensive set of constraints on the dipole portal to HNLs by utili...
hep-ph/0406275
Patrick Janot
Patrick Janot
Dark Matter and Sparticle Reconstruction at the LHC
Talk given at the XXXIXth Recontres de Moriond, Electroweak Interactions and Unified Theories, La Thuile, Italy, March 21-28, 2004 9 pages, 10 figures
null
null
CMS-CR/2004-023
hep-ph
null
The present knowledge of the dark matter discovery and measurement potential of the LHC is reviewed, in the framework of Supersymmetry with R-parity conservation.
[ { "created": "Thu, 24 Jun 2004 14:49:02 GMT", "version": "v1" } ]
2007-05-23
[ [ "Janot", "Patrick", "" ] ]
The present knowledge of the dark matter discovery and measurement potential of the LHC is reviewed, in the framework of Supersymmetry with R-parity conservation.
2101.10607
Yueling Yang
Yueling Yang, Xule Zhao, Shuangshi Fang, Jinshu Huang, Junfeng Sun
The study of ${\eta}_{c}(1S)$ ${\to}$ $PP^{\prime}$ decays
13 pages
Int. J. Their. Phys. 60, 3041-3050 (2021)
10.1007/s10773-021-04892-z
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
The ${\eta}_{c}(1S)$ ${\to}$ $PP^{\prime}$ decays are the parity violation modes. These decays can be induced by the weak interactions within the standard model, and have been searched for based on the available experimental data. To meet the needs of experimental investigation, the ${\eta}_{c}(1S)$ ${\to}$ $PP^{\pri...
[ { "created": "Tue, 26 Jan 2021 07:39:41 GMT", "version": "v1" } ]
2021-08-17
[ [ "Yang", "Yueling", "" ], [ "Zhao", "Xule", "" ], [ "Fang", "Shuangshi", "" ], [ "Huang", "Jinshu", "" ], [ "Sun", "Junfeng", "" ] ]
The ${\eta}_{c}(1S)$ ${\to}$ $PP^{\prime}$ decays are the parity violation modes. These decays can be induced by the weak interactions within the standard model, and have been searched for based on the available experimental data. To meet the needs of experimental investigation, the ${\eta}_{c}(1S)$ ${\to}$ $PP^{\prime...
0911.1193
Eliecer Hernandez-Gajate
C. Albertus, E. Hern\'andez, J. Nieves
The role of hyperfine mixing in $b\to c$ semileptonic decays of doubly-heavy baryons
3 latex pages. Talk given at The 5-th International Conference on Quarks and Nuclear Physics (QNP09), Beijing, September 2009
null
10.1088/1674-1137/34/9/080
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze the effects of hyperfine mixing in $b \to c$ semileptonic decays of doubly heavy baryons. We qualitatively confirm the results by W. Roberts and M. Pervin in Int. J. Mod. Phys. A, 2009, {\bf 24}: 2401-2413, finding that mixing has a great impact on those transitions. However, predictions without mixing dif...
[ { "created": "Fri, 6 Nov 2009 07:50:08 GMT", "version": "v1" } ]
2015-05-14
[ [ "Albertus", "C.", "" ], [ "Hernández", "E.", "" ], [ "Nieves", "J.", "" ] ]
We analyze the effects of hyperfine mixing in $b \to c$ semileptonic decays of doubly heavy baryons. We qualitatively confirm the results by W. Roberts and M. Pervin in Int. J. Mod. Phys. A, 2009, {\bf 24}: 2401-2413, finding that mixing has a great impact on those transitions. However, predictions without mixing diffe...
hep-ph/0402009
Dmitri Melikhov
Dmitri Melikhov and Silvano Simula
Correspondence between QCD sum rules and constituent quark models
8 pages, discussion of scale dependence of quark-model parameters above the chiral symmetry breaking scale is added
Eur.Phys.J. C37 (2004) 437-444
10.1140/epjc/s2004-02012-3
HD-THEP-04-1, RM3-TH/04-2
hep-ph
null
We compare two widely used approaches to the description of hadron properties: QCD sum rules and constituent quark models. Making use of the dispersion formulation of the quark model, we show that both approaches lead to similar spectral representations for hadron observables with an important difference that quark m...
[ { "created": "Sun, 1 Feb 2004 14:37:38 GMT", "version": "v1" }, { "created": "Fri, 2 Jul 2004 13:26:19 GMT", "version": "v2" } ]
2009-11-10
[ [ "Melikhov", "Dmitri", "" ], [ "Simula", "Silvano", "" ] ]
We compare two widely used approaches to the description of hadron properties: QCD sum rules and constituent quark models. Making use of the dispersion formulation of the quark model, we show that both approaches lead to similar spectral representations for hadron observables with an important difference that quark mod...
hep-ph/0003251
Carl Albright
Carl H. Albright (Northern Illinois U./Fermilab), S.M. Barr (Bartol Research Institute)
Construction of a Minimal Higgs SO(10) SUSY GUT Model
37 pages including 4 figures, corrected a misprint in Table I and several misprints in Fig. 4
Phys.Rev.D62:093008,2000
10.1103/PhysRevD.62.093008
BA-00-17, FERMILAB-Pub-00/068-T
hep-ph
null
A full account is given of the procedure used by the authors to construct an SO(10) supersymmetric grand unified model of the fermion mass matrices. Various features of the model which gives remarkably accurate results for the quark and lepton masses and mixings were presented earlier in separate publications. The co...
[ { "created": "Fri, 24 Mar 2000 23:37:09 GMT", "version": "v1" }, { "created": "Mon, 17 Apr 2000 19:59:19 GMT", "version": "v2" } ]
2011-05-12
[ [ "Albright", "Carl H.", "", "Northern Illinois U./Fermilab" ], [ "Barr", "S. M.", "", "Bartol\n Research Institute" ] ]
A full account is given of the procedure used by the authors to construct an SO(10) supersymmetric grand unified model of the fermion mass matrices. Various features of the model which gives remarkably accurate results for the quark and lepton masses and mixings were presented earlier in separate publications. The cons...
hep-ph/0606126
Boris Kopeliovich
M.B. Johnson, B.Z. Kopeliovich, M.J. Leitch, P.L. McGaughey, J.M. Moss, I.K. Potashnikova, Ivan Schmidt
Nuclear Broadening of Transverse Momentum in Drell-Yan Reactions
8 pages, 6 figures, fig.4 is added. The version to appear in Phys. Rev. C
Phys.Rev.C75:035206,2007
10.1103/PhysRevC.75.035206
null
hep-ph
null
Data for Drell-Yan (DY) processes on nuclei are currently available from fixed target experiments up to the highest energy of $\sqrt{s}=40\GeV$. The bulk of the data cover the range of short coherence length, where the amplitudes of the DY reaction on different nucleons do not interfere. In this regime, DY processes ...
[ { "created": "Sat, 10 Jun 2006 12:03:25 GMT", "version": "v1" }, { "created": "Wed, 24 Jan 2007 02:51:18 GMT", "version": "v2" } ]
2008-11-26
[ [ "Johnson", "M. B.", "" ], [ "Kopeliovich", "B. Z.", "" ], [ "Leitch", "M. J.", "" ], [ "McGaughey", "P. L.", "" ], [ "Moss", "J. M.", "" ], [ "Potashnikova", "I. K.", "" ], [ "Schmidt", "Ivan", "" ] ]
Data for Drell-Yan (DY) processes on nuclei are currently available from fixed target experiments up to the highest energy of $\sqrt{s}=40\GeV$. The bulk of the data cover the range of short coherence length, where the amplitudes of the DY reaction on different nucleons do not interfere. In this regime, DY processes pr...
2104.11740
Sanjib Kumar Agarwalla
Anil Kumar, Sanjib Kumar Agarwalla
Validating the Earth's Core using Atmospheric Neutrinos with ICAL at INO
29 pages, 7 figures, 7 tables. Published in JHEP. Matches with the published version
null
10.1007/JHEP08(2021)139
IP/BBSR/2021-2
hep-ph hep-ex physics.ins-det
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Iron Calorimeter (ICAL) detector at the proposed India-based Neutrino Observatory (INO) aims to detect atmospheric neutrinos and antineutrinos separately in the multi-GeV range of energies and over a wide range of baselines. By utilizing its charge identification capability, ICAL can efficiently distinguish $\mu^...
[ { "created": "Fri, 23 Apr 2021 17:51:26 GMT", "version": "v1" }, { "created": "Sun, 29 Aug 2021 19:34:20 GMT", "version": "v2" } ]
2021-09-15
[ [ "Kumar", "Anil", "" ], [ "Agarwalla", "Sanjib Kumar", "" ] ]
The Iron Calorimeter (ICAL) detector at the proposed India-based Neutrino Observatory (INO) aims to detect atmospheric neutrinos and antineutrinos separately in the multi-GeV range of energies and over a wide range of baselines. By utilizing its charge identification capability, ICAL can efficiently distinguish $\mu^-$...
hep-ph/9801261
F. V. Tkachov
N.I. Ussyukina
Spectral representation for on-shell massless double box
5p PS (Gsview 2.0); Talk at XII QFTHEP workshop (September 1997, Samara, Russia), to be published in proceedings (Inst. Nucl. Physics of MSU, Moscow)
null
null
null
hep-ph
null
A method is presented for obtaining the $\epsilon$-expansion for on-shell massless scalar double-box diagram.
[ { "created": "Sun, 11 Jan 1998 16:38:38 GMT", "version": "v1" } ]
2007-05-23
[ [ "Ussyukina", "N. I.", "" ] ]
A method is presented for obtaining the $\epsilon$-expansion for on-shell massless scalar double-box diagram.
2407.21113
Daisuke Fujii
Daisuke Fujii, Akihiro Iwanaka, Mitsuru Tanaka
Gravitational form factors of pion from top-down holographic QCD
8 pages, 1 figures
null
null
null
hep-ph hep-lat hep-th nucl-th
http://creativecommons.org/licenses/by/4.0/
The gravitational form factors (GFFs) of pions has been calculated from a top-down holographic QCD approach with momentum transfer dependence for the first time. It is important because the GFFs of hadrons have information on the internal stress distribution that may provide insight into the mechanism of how QCD form...
[ { "created": "Tue, 30 Jul 2024 18:05:47 GMT", "version": "v1" } ]
2024-08-01
[ [ "Fujii", "Daisuke", "" ], [ "Iwanaka", "Akihiro", "" ], [ "Tanaka", "Mitsuru", "" ] ]
The gravitational form factors (GFFs) of pions has been calculated from a top-down holographic QCD approach with momentum transfer dependence for the first time. It is important because the GFFs of hadrons have information on the internal stress distribution that may provide insight into the mechanism of how QCD forms ...
2006.14680
Andrew Larkoski
Andrew J. Larkoski
Improving the Understanding of Jet Grooming in Perturbation Theory
12 pages, 5 figures; v2: JHEP version, fixed typos and added discussion for $\beta >0$ and non-perturbative power corrections
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Jet grooming has emerged as a necessary and powerful tool in a precision jet physics program. In this paper, we present three results on jet grooming in perturbation theory, focusing on heavy jet mass in $e^+e^-\to$ hadrons collisions, groomed with the modified mass drop tagger. First, we calculate the analytic cross...
[ { "created": "Thu, 25 Jun 2020 20:15:42 GMT", "version": "v1" }, { "created": "Fri, 14 Aug 2020 20:27:07 GMT", "version": "v2" } ]
2020-08-18
[ [ "Larkoski", "Andrew J.", "" ] ]
Jet grooming has emerged as a necessary and powerful tool in a precision jet physics program. In this paper, we present three results on jet grooming in perturbation theory, focusing on heavy jet mass in $e^+e^-\to$ hadrons collisions, groomed with the modified mass drop tagger. First, we calculate the analytic cross s...
hep-ph/0510205
Fukuko Yuasa
F. Yuasa, K. Tobimatsu and S. Kawabata
Recent Developments in Parallelization of the Multidimensional Integration Package DICE
5 pages, 2 figures, Talk given at the X International Workshop on Advanced Computing and Analysis Techniques in Physics Research, ACAT 2005, DESY-Zeuthen, Germany, 22-27 May 2005
Nucl.Instrum.Meth. A559 (2006) 306-309
10.1016/j.nima.2005.11.218
null
hep-ph
null
DICE is a general purpose multidimensional numerical integration package. There can be two ways in the parallelization of DICE, "distributing random numbers into workers" and "distributing hypercubes into workers". Furthermore, there can be the combination of both ways. So far, we had developed the parallelization co...
[ { "created": "Sat, 15 Oct 2005 08:38:25 GMT", "version": "v1" } ]
2009-11-11
[ [ "Yuasa", "F.", "" ], [ "Tobimatsu", "K.", "" ], [ "Kawabata", "S.", "" ] ]
DICE is a general purpose multidimensional numerical integration package. There can be two ways in the parallelization of DICE, "distributing random numbers into workers" and "distributing hypercubes into workers". Furthermore, there can be the combination of both ways. So far, we had developed the parallelization code...
hep-ph/9810309
Utpal Sarkar
Ernest Ma, D.P. Roy and Utpal Sarkar
A See-Saw Model for Atmospheric and Solar Neutrino Oscillations
10 pages latex file; Minor changes (to be published in Phys Lett B)
Phys.Lett. B444 (1998) 391-396
10.1016/S0370-2693(98)01395-1
UCRHEP-T236; DTP/98/62
hep-ph
null
We have constructed an explicit see-saw model containing two singlet neutrinos, one carrying a $(B-3L_e)$ gauge charge with an intermediate mass scale of $\sim O(10^{10})$ GeV along with a sterile one near the GUT (grand unification theory) scale of $\sim O(10^{16})$ GeV. With these mass scales and a reasonable range...
[ { "created": "Fri, 9 Oct 1998 14:03:06 GMT", "version": "v1" }, { "created": "Fri, 20 Nov 1998 12:28:12 GMT", "version": "v2" } ]
2009-10-31
[ [ "Ma", "Ernest", "" ], [ "Roy", "D. P.", "" ], [ "Sarkar", "Utpal", "" ] ]
We have constructed an explicit see-saw model containing two singlet neutrinos, one carrying a $(B-3L_e)$ gauge charge with an intermediate mass scale of $\sim O(10^{10})$ GeV along with a sterile one near the GUT (grand unification theory) scale of $\sim O(10^{16})$ GeV. With these mass scales and a reasonable range o...
1804.07619
Mansoor Ur Rehman
Mansoor Ur Rehman, Mian Muhammad Azeem Abid and Amna Ejaz
New Inflation in Supersymmetric SU(5) and Flipped SU(5) GUT Models
24 pages and 8 figures; published revision
JCAP 11 (2020)019
10.1088/1475-7516/2020/11/019
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the feasibility of realizing supersymmetric new inflation model, introduced by Senoguz and Shafi in [1], for $SU(5)$ and flipped $SU(5)$ models of grand unified theories (GUTs). This realization requires an additional $U(1)_R \times Z_{n}$ symmetry for its successful implementation. The standard model (SM) g...
[ { "created": "Fri, 20 Apr 2018 13:56:10 GMT", "version": "v1" }, { "created": "Tue, 21 Apr 2020 17:13:27 GMT", "version": "v2" }, { "created": "Thu, 12 Nov 2020 16:27:26 GMT", "version": "v3" } ]
2020-11-13
[ [ "Rehman", "Mansoor Ur", "" ], [ "Abid", "Mian Muhammad Azeem", "" ], [ "Ejaz", "Amna", "" ] ]
We study the feasibility of realizing supersymmetric new inflation model, introduced by Senoguz and Shafi in [1], for $SU(5)$ and flipped $SU(5)$ models of grand unified theories (GUTs). This realization requires an additional $U(1)_R \times Z_{n}$ symmetry for its successful implementation. The standard model (SM) gau...
hep-ph/9705202
Yan Vtorov-Karevsky
Zurab Kakushadze, Gary Shiu, S.-H. Henry Tye, Yan Vtorov-Karevsky
Phenomenology of 3-Family Grand Unified String Models
12 pages, Revtex 3.0. Minor corrections made
Phys.Lett. B408 (1997) 173-182
10.1016/S0370-2693(97)00831-9
CLNS 97/1468, HUTP-97/A016, NUB 3138
hep-ph hep-th
null
In the 3-family grand unified string models constructed so far, there is only one adjoint (and no higher dimensional representation) Higgs field in the grand unified gauge group. In this preliminary analysis, we address the proton-decay problem in the 3-family E_6 and related SO(10) string models. In particular, we a...
[ { "created": "Thu, 1 May 1997 19:01:28 GMT", "version": "v1" }, { "created": "Wed, 16 Jul 1997 00:50:14 GMT", "version": "v2" } ]
2009-10-30
[ [ "Kakushadze", "Zurab", "" ], [ "Shiu", "Gary", "" ], [ "Tye", "S. -H. Henry", "" ], [ "Vtorov-Karevsky", "Yan", "" ] ]
In the 3-family grand unified string models constructed so far, there is only one adjoint (and no higher dimensional representation) Higgs field in the grand unified gauge group. In this preliminary analysis, we address the proton-decay problem in the 3-family E_6 and related SO(10) string models. In particular, we ana...
hep-ph/9909243
Renard Fernand Michel
G.J. Gounaris, J. Layssac, P.I. Porfyriadis and F.M. Renard
The gamma gamma to Z Z process and the search for virtual SUSY effects at a gamma gamma Collider
28 pages and 6 figures; version to appear in E.P.J.C e-mail: renard@lpm.univ-montp2.fr
Eur.Phys.J.C13:79-97,2000
10.1007/s100520000307
PM/99-32, THES-TP 99-08
hep-ph
null
We study the helicity amplitudes of the process gamma gamma to ZZ in the Standard Model at high energy. These amplitudes receive contributions from the W and charged quark and lepton loops, analogous to those encountered in the gamma gamma to gamma gamma, gamma Z cases studied before. But gamma gamma to ZZ also recei...
[ { "created": "Fri, 3 Sep 1999 12:10:37 GMT", "version": "v1" }, { "created": "Wed, 8 Dec 1999 15:30:13 GMT", "version": "v2" }, { "created": "Mon, 13 Dec 1999 09:13:29 GMT", "version": "v3" } ]
2015-06-25
[ [ "Gounaris", "G. J.", "" ], [ "Layssac", "J.", "" ], [ "Porfyriadis", "P. I.", "" ], [ "Renard", "F. M.", "" ] ]
We study the helicity amplitudes of the process gamma gamma to ZZ in the Standard Model at high energy. These amplitudes receive contributions from the W and charged quark and lepton loops, analogous to those encountered in the gamma gamma to gamma gamma, gamma Z cases studied before. But gamma gamma to ZZ also receive...
1505.03583
Shou-Shan Bao
Shou-Shan Bao, Zhuo Liu, Yue-Liang Wu
$SU(3)_{F}$ Gauge Family Model and New Symmetry Breaking Scale From FCNC Processes
3figures
null
10.1016/j.nuclphysb.2016.01.002
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Based on the $SU(3)_{F}$ gauge family symmetry model which was proposed to explain the observed mass and mixing pattern of neutrinos, we investigate the symmetry breaking, the mixing pattern in quark and lepton sectors, and the contribution of the new gauge bosons to some flavour changing neutral currents (FCNC) proc...
[ { "created": "Thu, 14 May 2015 00:41:30 GMT", "version": "v1" }, { "created": "Mon, 18 Jan 2016 21:12:33 GMT", "version": "v2" } ]
2016-01-20
[ [ "Bao", "Shou-Shan", "" ], [ "Liu", "Zhuo", "" ], [ "Wu", "Yue-Liang", "" ] ]
Based on the $SU(3)_{F}$ gauge family symmetry model which was proposed to explain the observed mass and mixing pattern of neutrinos, we investigate the symmetry breaking, the mixing pattern in quark and lepton sectors, and the contribution of the new gauge bosons to some flavour changing neutral currents (FCNC) proces...
hep-ph/9904478
Andrzej Czarnecki
Andrzej Czarnecki, Kirill Melnikov, and Alexander Yelkhovsky
alpha^2 corrections to parapositronium decay
4 pages, revtex
Phys.Rev.Lett. 83 (1999) 1135-1138
10.1103/PhysRevLett.83.1135
BNL-HET-99/7, TTP 99-20
hep-ph physics.atom-ph
null
Two-loop QED corrections to the decay rate of parapositronium (p-Ps) into two photons are presented. We find Gamma(p-Ps --> 2 photons) = 7989.64(2)/microsec. The non-logarithmic O(alpha^2) corrections turn out to be small, contrary to some earlier estimates. We speculate that the so-called ``orthopositronium lifetime...
[ { "created": "Wed, 28 Apr 1999 14:38:58 GMT", "version": "v1" }, { "created": "Mon, 17 Jul 2000 19:10:45 GMT", "version": "v2" } ]
2009-10-31
[ [ "Czarnecki", "Andrzej", "" ], [ "Melnikov", "Kirill", "" ], [ "Yelkhovsky", "Alexander", "" ] ]
Two-loop QED corrections to the decay rate of parapositronium (p-Ps) into two photons are presented. We find Gamma(p-Ps --> 2 photons) = 7989.64(2)/microsec. The non-logarithmic O(alpha^2) corrections turn out to be small, contrary to some earlier estimates. We speculate that the so-called ``orthopositronium lifetime p...
hep-ph/0411110
A. Guffanti
J. Bl\"umlein, A. Guffanti
Scheme-invariant NNLO evolution for unpolarized DIS structure functions
6 pages, 1 LaTeX file, 2 eps figures, 1 style file. Contribution to the proceedings of the "11th International QCD Conference: QCD04", Montpellier, France, 5-10 July 2004
null
10.1016/j.nuclphysbps.2005.08.017
null
hep-ph
null
We discuss the combination of NNLO standard QCD evolution and scheme-invariant analysis for unpolarized DIS structure functions data as a method to reduce the theoretical errors on the determination of $\alpha_s(M_Z^2)$ to $\sim 1$% in order to match the accuracy forseen for experimental errors from future high stati...
[ { "created": "Mon, 8 Nov 2004 14:37:50 GMT", "version": "v1" } ]
2015-06-25
[ [ "Blümlein", "J.", "" ], [ "Guffanti", "A.", "" ] ]
We discuss the combination of NNLO standard QCD evolution and scheme-invariant analysis for unpolarized DIS structure functions data as a method to reduce the theoretical errors on the determination of $\alpha_s(M_Z^2)$ to $\sim 1$% in order to match the accuracy forseen for experimental errors from future high statist...
2006.13929
Josef Pradler
Haipeng An, Maxim Pospelov, Josef Pradler, Adam Ritz
New limits on dark photons from solar emission and keV scale dark matter
5 pages, 4 figures; references added, conclusions unchanged; journal version
Phys. Rev. D 102, 115022 (2020)
10.1103/PhysRevD.102.115022
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We provide updates to the limits on solar emission of dark photons, or more generally any light vector particle coupled to the electron vector current. The recent 2019 and 2020 electronic recoil data from XENON1T now provides more stringent constraints on these models than stellar energy loss in the sub-keV mass regi...
[ { "created": "Wed, 24 Jun 2020 17:58:07 GMT", "version": "v1" }, { "created": "Mon, 7 Dec 2020 14:36:09 GMT", "version": "v2" } ]
2021-01-04
[ [ "An", "Haipeng", "" ], [ "Pospelov", "Maxim", "" ], [ "Pradler", "Josef", "" ], [ "Ritz", "Adam", "" ] ]
We provide updates to the limits on solar emission of dark photons, or more generally any light vector particle coupled to the electron vector current. The recent 2019 and 2020 electronic recoil data from XENON1T now provides more stringent constraints on these models than stellar energy loss in the sub-keV mass region...
0901.0424
Emil Akhmedov
E.T. Akhmedov (ITEP, Moscow) and E.T. Musaev (ITEP, Moscow)
Comments on QED with background electric fields
14 pages, 1 figure
New J.Phys.11:103048,2009
10.1088/1367-2630/11/10/103048
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is well known that there is a total cancellation of the \emph{factorizable} IR divergences in unitary interacting field theories, such as QED and quantum gravity. In this note we show that such a cancellation does not happen in QED with background electric fields which can produce pairs. There is no factorization ...
[ { "created": "Mon, 5 Jan 2009 15:50:43 GMT", "version": "v1" }, { "created": "Mon, 26 Jan 2009 14:36:26 GMT", "version": "v2" }, { "created": "Mon, 23 Feb 2009 18:03:17 GMT", "version": "v3" } ]
2009-11-05
[ [ "Akhmedov", "E. T.", "", "ITEP, Moscow" ], [ "Musaev", "E. T.", "", "ITEP, Moscow" ] ]
It is well known that there is a total cancellation of the \emph{factorizable} IR divergences in unitary interacting field theories, such as QED and quantum gravity. In this note we show that such a cancellation does not happen in QED with background electric fields which can produce pairs. There is no factorization of...
hep-ph/9502218
Zpli
Zhenping Li
The Kaon-Photoproduction Of Nucleons In The Quark Model
25 pages, 9 postscript figures can be obtained from the author.
Phys.Rev.C52:1648-1661,1995
10.1103/PhysRevC.52.1648
null
hep-ph nucl-th
null
In this paper, we develop a general framework to study the meson-photoproductions of nucleons in the chiral quark model. The S and U channel resonance contributions are expressed in terms of the Chew-Goldberger-Low-Nambu (CGLN) amplitudes. The kaon-photoproduction processes, $\gamma p\to K^+ \Lambda$, $\gamma p\to K^...
[ { "created": "Thu, 2 Feb 1995 17:45:49 GMT", "version": "v1" } ]
2016-09-01
[ [ "Li", "Zhenping", "" ] ]
In this paper, we develop a general framework to study the meson-photoproductions of nucleons in the chiral quark model. The S and U channel resonance contributions are expressed in terms of the Chew-Goldberger-Low-Nambu (CGLN) amplitudes. The kaon-photoproduction processes, $\gamma p\to K^+ \Lambda$, $\gamma p\to K^+ ...
1705.03144
Xiang Liu
Cheng-Qun Pang, Jun-Zhang Wang, Xiang Liu and Takayuki Matsuki
A systematic study of mass spectra and strong decay of strange mesons
19 pages, 7 figures, and 17 tables. More discussions added and typos corrected. Accepted by Eur. Phys. J. C
Eur. Phys. J. C 77, 861 (2017)
10.1140/epjc/s10052-017-5434-0
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The mass spectrum of the kaon family is analyzed by the {modified} Godfrey-Isgur model with a color screening effect approximating the kaon as a heavy-light meson system. This analysis gives us the structure and possible assignments of the observed kaon candidates, which can be tested by comparing the theoretical res...
[ { "created": "Tue, 9 May 2017 01:56:05 GMT", "version": "v1" }, { "created": "Thu, 30 Nov 2017 02:01:15 GMT", "version": "v2" } ]
2017-12-27
[ [ "Pang", "Cheng-Qun", "" ], [ "Wang", "Jun-Zhang", "" ], [ "Liu", "Xiang", "" ], [ "Matsuki", "Takayuki", "" ] ]
The mass spectrum of the kaon family is analyzed by the {modified} Godfrey-Isgur model with a color screening effect approximating the kaon as a heavy-light meson system. This analysis gives us the structure and possible assignments of the observed kaon candidates, which can be tested by comparing the theoretical resul...
1409.5947
Zhenjun Xiao
Shan Cheng, Ya-Lan Zhang and Zhen-Jun Xiao
The NLO contributions to the scalar pion form factors and the ${\cal O}(\alpha_s^2)$ annihilation corrections to the $B\to \pi\pi$ decays
26 pages, 12 figures, 1 Table; Minor corrections
null
10.1016/j.nuclphysb.2015.04.021
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, by employing the $k_{T}$ factorization theorem, we made the first calculation for the space-like scalar pion form factor $Q^2 F(Q^2)$ at the leading order (LO) and the next-to-leading order (NLO) level, and then found the time-like scalar pion form factor $F'^{(1)}_{\rm a,I}$ by analytic continuation f...
[ { "created": "Sun, 21 Sep 2014 06:50:59 GMT", "version": "v1" }, { "created": "Tue, 11 Nov 2014 06:43:18 GMT", "version": "v2" }, { "created": "Sat, 31 Jan 2015 02:10:54 GMT", "version": "v3" }, { "created": "Wed, 1 Apr 2015 00:58:09 GMT", "version": "v4" } ]
2015-05-20
[ [ "Cheng", "Shan", "" ], [ "Zhang", "Ya-Lan", "" ], [ "Xiao", "Zhen-Jun", "" ] ]
In this paper, by employing the $k_{T}$ factorization theorem, we made the first calculation for the space-like scalar pion form factor $Q^2 F(Q^2)$ at the leading order (LO) and the next-to-leading order (NLO) level, and then found the time-like scalar pion form factor $F'^{(1)}_{\rm a,I}$ by analytic continuation fro...
2307.02309
Shan Cheng
Shan Cheng and Shu-Lei Zhang
$D_s \to f_0$ form factors and the $D_s^+ \to \left[ \pi\pi \right]_{\rm S} e^+ \nu_e$ decay from light-cone sum rules
23 pages, 14 figures, 7 tables
null
null
null
hep-ph hep-ex
http://creativecommons.org/publicdomain/zero/1.0/
In this paper we revisit $D_s \to f_0$ form factors from the light-cone sum rules with the light meson light-cone distribution amplitudes. The main motivation of this study is the differential decay width of $D_s \to \left[\pi\pi \right]_{\rm S} e \nu_e$ measured recently by BESIII collaboration and the $D_s \to f_0$...
[ { "created": "Wed, 5 Jul 2023 14:11:51 GMT", "version": "v1" } ]
2023-07-06
[ [ "Cheng", "Shan", "" ], [ "Zhang", "Shu-Lei", "" ] ]
In this paper we revisit $D_s \to f_0$ form factors from the light-cone sum rules with the light meson light-cone distribution amplitudes. The main motivation of this study is the differential decay width of $D_s \to \left[\pi\pi \right]_{\rm S} e \nu_e$ measured recently by BESIII collaboration and the $D_s \to f_0$ f...
0801.1845
Martin Snoager Sloth
Antonio Riotto and Martin S. Sloth
On Resumming Inflationary Perturbations beyond One-loop
17 pages, v2: minor corrections, to appear in jcap
JCAP0804:030,2008
10.1088/1475-7516/2008/04/030
CERN-PH-TH/2008-006
hep-ph astro-ph hep-th
null
It is well known that the correlation functions of a scalar field in a quasi-de Sitter space exhibit at the loop level cumulative infra-red effects proportional to the total number of e-foldings of inflation. Using the in-in formalism, we explore the behavior of these infra-red effects in the large N limit of an O(N)...
[ { "created": "Fri, 11 Jan 2008 21:19:58 GMT", "version": "v1" }, { "created": "Tue, 8 Apr 2008 11:13:34 GMT", "version": "v2" } ]
2008-11-26
[ [ "Riotto", "Antonio", "" ], [ "Sloth", "Martin S.", "" ] ]
It is well known that the correlation functions of a scalar field in a quasi-de Sitter space exhibit at the loop level cumulative infra-red effects proportional to the total number of e-foldings of inflation. Using the in-in formalism, we explore the behavior of these infra-red effects in the large N limit of an O(N) i...
hep-ph/0411172
Peter Schweitzer
J.Ossmann, M.V.Polyakov, P.Schweitzer, D.Urbano, K.Goeke
The generalized parton distribution function (E^u+E^d)(x,xi,t) of the nucleon in the chiral quark soliton model
20 pages, 12 figures
Phys.Rev.D71:034011,2005
10.1103/PhysRevD.71.034011
RUB-TPII-6/04
hep-ph
null
The unpolarized spin-flip isoscalar generalized parton distribution function (E^u+E^d)(x,xi,t) is studied in the large-Nc limit at a low normalization point in the framework of the chiral quark-soliton model. This is the first study of generalized parton distribution functions in this model, which appear only at the ...
[ { "created": "Fri, 12 Nov 2004 16:09:00 GMT", "version": "v1" }, { "created": "Tue, 15 Feb 2005 13:18:10 GMT", "version": "v2" } ]
2008-11-26
[ [ "Ossmann", "J.", "" ], [ "Polyakov", "M. V.", "" ], [ "Schweitzer", "P.", "" ], [ "Urbano", "D.", "" ], [ "Goeke", "K.", "" ] ]
The unpolarized spin-flip isoscalar generalized parton distribution function (E^u+E^d)(x,xi,t) is studied in the large-Nc limit at a low normalization point in the framework of the chiral quark-soliton model. This is the first study of generalized parton distribution functions in this model, which appear only at the su...
2303.12015
Bachir Moussallam
Emi Kou, Tetiana Moskalets, Bachir Moussallam
Isospin symmetry and analyticity in $D\to\bar{K}\pi\pi$ decays
55 pages,13 figures
null
null
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
We perform a detailed study of the consequences of isospin symmetry in the Cabibbo favoured $D\to\Kbar\pi\pi$ decays. These processes are important for precision testing of the Standard Model and for hadronic physics. Combining isospin symmetry with a dispersive reconstruction theorem we derive a representation in te...
[ { "created": "Tue, 21 Mar 2023 16:51:56 GMT", "version": "v1" }, { "created": "Thu, 28 Dec 2023 14:54:05 GMT", "version": "v2" } ]
2023-12-29
[ [ "Kou", "Emi", "" ], [ "Moskalets", "Tetiana", "" ], [ "Moussallam", "Bachir", "" ] ]
We perform a detailed study of the consequences of isospin symmetry in the Cabibbo favoured $D\to\Kbar\pi\pi$ decays. These processes are important for precision testing of the Standard Model and for hadronic physics. Combining isospin symmetry with a dispersive reconstruction theorem we derive a representation in term...
1405.2529
Sergey Kulagin
S.A. Kulagin and R. Petti
Nuclear parton distributions and the Drell-Yan process
34 pages, 8 figures, 2 tables. Final version to appear in Phys. Rev. C
null
10.1103/PhysRevC.90.045204
INR-TH-2014-004; CETUP2014-002
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the nuclear parton distribution functions on the basis of our recently developed semi-microscopic model, which takes into account a number of nuclear effects including nuclear shadowing, Fermi motion and nuclear binding, nuclear meson-exchange currents, and off-shell corrections to bound nucleon distribution...
[ { "created": "Sun, 11 May 2014 12:45:57 GMT", "version": "v1" }, { "created": "Tue, 14 Oct 2014 18:39:59 GMT", "version": "v2" } ]
2015-06-19
[ [ "Kulagin", "S. A.", "" ], [ "Petti", "R.", "" ] ]
We study the nuclear parton distribution functions on the basis of our recently developed semi-microscopic model, which takes into account a number of nuclear effects including nuclear shadowing, Fermi motion and nuclear binding, nuclear meson-exchange currents, and off-shell corrections to bound nucleon distributions....
0911.1480
Xiao-Gang He
Cheng-Wei Chiang, N.G. Deshpande, Xiao-Gang He, J. Jiang
The Family SU(2)_l x SU(2)_h x U(1) Model
Latex 18 pages. No figure. Some references added. Version appeared in PRD
Phys.Rev.D81:015006,2010
10.1103/PhysRevD.81.015006
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider extension of the standard model $SU(2)_l \times SU(2)_h \times U(1)$ where the first two families of quarks and leptons transform according to the $SU(2)_l$ group and the third family according to the $SU(2)_h$ group. In this approach, the largeness of top-quark mass is associated with the large vacuum ex...
[ { "created": "Sun, 8 Nov 2009 02:00:19 GMT", "version": "v1" }, { "created": "Sun, 15 Nov 2009 09:23:04 GMT", "version": "v2" }, { "created": "Mon, 18 Jan 2010 07:53:47 GMT", "version": "v3" } ]
2010-04-06
[ [ "Chiang", "Cheng-Wei", "" ], [ "Deshpande", "N. G.", "" ], [ "He", "Xiao-Gang", "" ], [ "Jiang", "J.", "" ] ]
We consider extension of the standard model $SU(2)_l \times SU(2)_h \times U(1)$ where the first two families of quarks and leptons transform according to the $SU(2)_l$ group and the third family according to the $SU(2)_h$ group. In this approach, the largeness of top-quark mass is associated with the large vacuum expe...
1011.0960
Leonard Lesniak
J.-P. Dedonder, A. Furman, R. Kaminski, L. Lesniak, B. Loiseau
S-, P- and D-wave final state interactions and CP violation in B+- --> pi+- pi-+ pi+- decays
33 pages, 7 figures, D-wave pi pi interactions included
Acta Phys. Polon. B42: 2013,2011
10.5506/APhysPolB.42.2013
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study CP violation and the contribution of the strong pion-pion interactions in the three-body B+- --> pi+- pi-+ pi+- decays within a quasi two-body QCD factorization approach. The short distance interaction amplitude is calculated in the next-to-leading order in the strong coupling constant with vertex and pengui...
[ { "created": "Wed, 3 Nov 2010 18:29:52 GMT", "version": "v1" }, { "created": "Fri, 9 Sep 2011 19:10:34 GMT", "version": "v2" } ]
2011-09-16
[ [ "Dedonder", "J. -P.", "" ], [ "Furman", "A.", "" ], [ "Kaminski", "R.", "" ], [ "Lesniak", "L.", "" ], [ "Loiseau", "B.", "" ] ]
We study CP violation and the contribution of the strong pion-pion interactions in the three-body B+- --> pi+- pi-+ pi+- decays within a quasi two-body QCD factorization approach. The short distance interaction amplitude is calculated in the next-to-leading order in the strong coupling constant with vertex and penguin ...
1008.5223
Yoshiharu Kawamura
Yoshiharu Kawamura
Limitation on Magnitude of $D$-components
12 pages, revised in 2 and 3.1, other minor changes and typos fixed
Prog.Theor.Phys.125:509-520,2011
10.1143/PTP.125.509
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the magnitude of $D$-components in a generic supersymmetric field theory. There exists $F$-component whose vacuum expectation value is comparable to or bigger than that of $D$-component, in the absence of Fayet-Iliopoulos term, the large hierarchy in the charge spectrum and strongly interacting higher-dimens...
[ { "created": "Tue, 31 Aug 2010 05:40:48 GMT", "version": "v1" }, { "created": "Fri, 24 Dec 2010 00:07:08 GMT", "version": "v2" } ]
2011-06-07
[ [ "Kawamura", "Yoshiharu", "" ] ]
We study the magnitude of $D$-components in a generic supersymmetric field theory. There exists $F$-component whose vacuum expectation value is comparable to or bigger than that of $D$-component, in the absence of Fayet-Iliopoulos term, the large hierarchy in the charge spectrum and strongly interacting higher-dimensio...
1301.4189
John McDonald
John McDonald
Explaining the Dark Energy, Baryon and Dark Matter Coincidence via Domain-Dependent Random Densities
9 pages, 6 figures, version to be published in JCAP
null
10.1088/1475-7516/2013/05/019
null
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The dark energy, dark matter and baryon densities in the Universe are observed to be similar, with a factor of no more than 20 between the largest and smallest densities. We show that this coincidence can be understood via superhorizon domains of randomly varying densities when the baryon density at initial collapse ...
[ { "created": "Thu, 17 Jan 2013 19:05:46 GMT", "version": "v1" }, { "created": "Wed, 15 May 2013 11:33:59 GMT", "version": "v2" } ]
2015-06-12
[ [ "McDonald", "John", "" ] ]
The dark energy, dark matter and baryon densities in the Universe are observed to be similar, with a factor of no more than 20 between the largest and smallest densities. We show that this coincidence can be understood via superhorizon domains of randomly varying densities when the baryon density at initial collapse of...
1407.7968
Guo-Li Wang
Wan-Li Ju, Guo-Li Wang, Hui-Feng Fu, Zhi-Hui Wang, Ying Li
The rare semi-leptonic $B_c$ decays involving orbitally excited final mesons
null
JHEP 1509 (2015) 171
10.1007/JHEP09(2015)171
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The rare processes $B_c\to D_{(s)J} ^{(*)}\mu\bar{\mu}$, where $D_{(s)J}^{(*)}$ stands for the final meson $D_{s0}^*(2317)$, $D_{s1}(2460,2536)$,~$D_{s2}^*(2573)$, $D_0^*(2400)$, $D_{1}(2420,2430)$ or~$D_{2}^*(2460)$, are studied within the Standard Model. The hadronic matrix elements are evaluated in the Bethe-Salpe...
[ { "created": "Wed, 30 Jul 2014 08:26:32 GMT", "version": "v1" }, { "created": "Mon, 9 Mar 2015 11:16:50 GMT", "version": "v2" }, { "created": "Thu, 16 Jul 2015 13:06:15 GMT", "version": "v3" } ]
2016-01-05
[ [ "Ju", "Wan-Li", "" ], [ "Wang", "Guo-Li", "" ], [ "Fu", "Hui-Feng", "" ], [ "Wang", "Zhi-Hui", "" ], [ "Li", "Ying", "" ] ]
The rare processes $B_c\to D_{(s)J} ^{(*)}\mu\bar{\mu}$, where $D_{(s)J}^{(*)}$ stands for the final meson $D_{s0}^*(2317)$, $D_{s1}(2460,2536)$,~$D_{s2}^*(2573)$, $D_0^*(2400)$, $D_{1}(2420,2430)$ or~$D_{2}^*(2460)$, are studied within the Standard Model. The hadronic matrix elements are evaluated in the Bethe-Salpete...
2008.05813
Jan Staudenmaier
Jan Staudenmaier, Natey K\"ubler, Hannah Elfner
Particle Production in AgAg Collisions at $E_{\rm Kin}=1.58A$ GeV within a Hadronic Transport Approach
13 pages, 13 figures, text files with the data to reproduce the figures provided in source; replaced with published version, only minor changes and 1 figure removed
Phys. Rev. C 103, 044904 (2021)
10.1103/PhysRevC.103.044904
null
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Heavy-ion collisions at low beam energies explore the high density regime of strongly-interacting matter. The dynamical evolution of these collisions can be successfully described by hadronic transport approaches. In March 2019, the HADES collaboration has taken data for AgAg collisions at $E_{\rm Kin}=1.58A$ GeV and...
[ { "created": "Thu, 13 Aug 2020 10:58:31 GMT", "version": "v1" }, { "created": "Mon, 31 Aug 2020 15:22:19 GMT", "version": "v2" }, { "created": "Mon, 26 Apr 2021 14:00:57 GMT", "version": "v3" } ]
2021-04-27
[ [ "Staudenmaier", "Jan", "" ], [ "Kübler", "Natey", "" ], [ "Elfner", "Hannah", "" ] ]
Heavy-ion collisions at low beam energies explore the high density regime of strongly-interacting matter. The dynamical evolution of these collisions can be successfully described by hadronic transport approaches. In March 2019, the HADES collaboration has taken data for AgAg collisions at $E_{\rm Kin}=1.58A$ GeV and i...
1609.04966
Jingyi Chao
Jingyi Chao and Mei Huang
Photon polarization tensor in a magnetized plasma system
9 pages
null
null
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the photon polarization tensor at finite temperature in the presence of a static and homogeneous external magnetic field. In our scheme, the Matsubara frequency summation is performed after Poisson summation, which will be taken easily and convergent quickly in the frame of proper time representation. ...
[ { "created": "Fri, 16 Sep 2016 09:32:23 GMT", "version": "v1" } ]
2016-09-19
[ [ "Chao", "Jingyi", "" ], [ "Huang", "Mei", "" ] ]
We investigate the photon polarization tensor at finite temperature in the presence of a static and homogeneous external magnetic field. In our scheme, the Matsubara frequency summation is performed after Poisson summation, which will be taken easily and convergent quickly in the frame of proper time representation. Mo...
hep-ph/0202198
Werner Porod
A. Bartl, T. Kernreiter and W. Porod
A CP sensitive asymmetry in the three--body decay stop_1 -> b tau+ tau-sneutrino
LaTex, 9 pages, 3 figures, v2, improved treatment of transversal polarized taus, modified table, conclusions unchanged
Phys.Lett.B538:59-65,2002
10.1016/S0370-2693(02)01953-6
UWThPh-2001-36, HEPHY-PUB 746, ZU-TH 5/02
hep-ph hep-ex
null
We consider the three--body decay stop_1 -> b tau+ tau-sneutrino and propose the asymmetry of the tau polarization perpendicular to the decay plane as a CP sensitive observable. We calculate this asymmetry in the Minimal Supersymmetric Standard Model taking the parameters mu and A_t complex. In the parameter domain w...
[ { "created": "Thu, 21 Feb 2002 12:58:52 GMT", "version": "v1" }, { "created": "Tue, 21 May 2002 08:44:49 GMT", "version": "v2" } ]
2008-11-26
[ [ "Bartl", "A.", "" ], [ "Kernreiter", "T.", "" ], [ "Porod", "W.", "" ] ]
We consider the three--body decay stop_1 -> b tau+ tau-sneutrino and propose the asymmetry of the tau polarization perpendicular to the decay plane as a CP sensitive observable. We calculate this asymmetry in the Minimal Supersymmetric Standard Model taking the parameters mu and A_t complex. In the parameter domain whe...
2103.07167
Ryuta Kasuya
Takeshi Araki, Kento Asai, Kei Honda, Ryuta Kasuya, Joe Sato, Takashi Shimomura, Masaki J.S. Yang
Resolving the Hubble tension in a U(1)$_{L_\mu-L_\tau}$ model with Majoron
19 pages, 7 figures, published in PTEP
Prog. Theor. Exp. Phys. 2021, 103B05
10.1093/ptep/ptab108
STUPP-20-242, UME-PP-18
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, we explore possibilities of resolving the Hubble tension and $(g-2)_{\mu}$ anomaly simultaneously in a U(1)$_{L_\mu - L_\tau}$ model with Majoron. We only focus on a case where the Majoron $\phi$ does not exist at the beginning of the universe and is created by neutrino inverse decay $\nu\nu\to \phi$ a...
[ { "created": "Fri, 12 Mar 2021 09:35:37 GMT", "version": "v1" }, { "created": "Sat, 6 Nov 2021 01:35:13 GMT", "version": "v2" } ]
2021-11-09
[ [ "Araki", "Takeshi", "" ], [ "Asai", "Kento", "" ], [ "Honda", "Kei", "" ], [ "Kasuya", "Ryuta", "" ], [ "Sato", "Joe", "" ], [ "Shimomura", "Takashi", "" ], [ "Yang", "Masaki J. S.", "" ] ]
In this paper, we explore possibilities of resolving the Hubble tension and $(g-2)_{\mu}$ anomaly simultaneously in a U(1)$_{L_\mu - L_\tau}$ model with Majoron. We only focus on a case where the Majoron $\phi$ does not exist at the beginning of the universe and is created by neutrino inverse decay $\nu\nu\to \phi$ aft...
1004.3464
Jusak Tandean
Xiao-Gang He, Shu-Yu Ho, Jusak Tandean, Ho-Chin Tsai
Scalar Dark Matter and Standard Model with Four Generations
18 pages, 5 figures
Phys.Rev.D82:035016,2010
10.1103/PhysRevD.82.035016
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider a scalar dark matter model, the SM4+D, consisting of the standard model with four generations (SM4) and a real gauge-singlet scalar called darkon, D, as the weakly interacting massive particle (WIMP) dark-matter (DM) candidate. We explore constraints on the darkon sector of the SM4+D from WIMP DM direct-s...
[ { "created": "Tue, 20 Apr 2010 14:34:35 GMT", "version": "v1" } ]
2014-11-20
[ [ "He", "Xiao-Gang", "" ], [ "Ho", "Shu-Yu", "" ], [ "Tandean", "Jusak", "" ], [ "Tsai", "Ho-Chin", "" ] ]
We consider a scalar dark matter model, the SM4+D, consisting of the standard model with four generations (SM4) and a real gauge-singlet scalar called darkon, D, as the weakly interacting massive particle (WIMP) dark-matter (DM) candidate. We explore constraints on the darkon sector of the SM4+D from WIMP DM direct-sea...
hep-ph/0602190
Kuang-Ta Chao
Kuang-Ta Chao
A short note on $q\bar qg$ hybrid assignment for $X(1812)\to \omega\phi$
3 pages, no figures
null
null
null
hep-ph
null
BES Collaboration has recently observed an enhancement near the $\omega\phi$ threshold in the double OZI suppressed decay $J/\psi \to\gamma\omega\phi$. This $\omega\phi$ enhancement is probably due to a new $J^{PC}=0^{++}$ X(1812) state. We discuss a possible assignment that the X(1812) is a $ 1/\sqrt{2}(u\bar u+d\ba...
[ { "created": "Tue, 21 Feb 2006 07:50:35 GMT", "version": "v1" } ]
2007-05-23
[ [ "Chao", "Kuang-Ta", "" ] ]
BES Collaboration has recently observed an enhancement near the $\omega\phi$ threshold in the double OZI suppressed decay $J/\psi \to\gamma\omega\phi$. This $\omega\phi$ enhancement is probably due to a new $J^{PC}=0^{++}$ X(1812) state. We discuss a possible assignment that the X(1812) is a $ 1/\sqrt{2}(u\bar u+d\bar ...
0910.0860
Tianjun Li
Tianjun Li, Dimitri V. Nanopoulos, Joel W. Walker
Fast Proton Decay
RevTex4, 5 pages, 3 figures, 1 table, comments added, version to appear in PLB
null
10.1016/j.physletb.2010.09.015
ACT-10-09, MIFP-09-39
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider proton decay in the testable flipped SU(5) X U(1)_X models with TeV-scale vector-like particles which can be realized in free fermionic string constructions and F-theory model building. We significantly improve upon the determination of light threshold effects from prior studies, and perform a fresh calcu...
[ { "created": "Mon, 5 Oct 2009 20:43:29 GMT", "version": "v1" }, { "created": "Fri, 10 Sep 2010 14:47:30 GMT", "version": "v2" } ]
2015-05-14
[ [ "Li", "Tianjun", "" ], [ "Nanopoulos", "Dimitri V.", "" ], [ "Walker", "Joel W.", "" ] ]
We consider proton decay in the testable flipped SU(5) X U(1)_X models with TeV-scale vector-like particles which can be realized in free fermionic string constructions and F-theory model building. We significantly improve upon the determination of light threshold effects from prior studies, and perform a fresh calcula...
1112.4809
Aron Bernstein
A. M. Bernstein and Barry R. Holstein
Neutral Pion Lifetime Measurements and the QCD Chiral Anomaly
75 pages, 17 figures
Reviews of Modern Physics, 85, 49(2013)
10.1103/RevModPhys.85.49
null
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A fundamental property of QCD is the presence of the chiral anomaly, which is the primary component of the $\pi^0\rightarrow\gamma\gamma$ decay amplitude. Based on this anomaly and its small ($\simeq$ 4.5%) chiral correction, a firm prediction of the $\pi^0$ lifetime can be used as a test of QCD at confinement scale ...
[ { "created": "Tue, 20 Dec 2011 19:46:21 GMT", "version": "v1" }, { "created": "Tue, 2 Jul 2013 20:05:37 GMT", "version": "v2" } ]
2015-06-03
[ [ "Bernstein", "A. M.", "" ], [ "Holstein", "Barry R.", "" ] ]
A fundamental property of QCD is the presence of the chiral anomaly, which is the primary component of the $\pi^0\rightarrow\gamma\gamma$ decay amplitude. Based on this anomaly and its small ($\simeq$ 4.5%) chiral correction, a firm prediction of the $\pi^0$ lifetime can be used as a test of QCD at confinement scale en...
1707.09977
Sunando Patra
Sneha Jaiswal, Soumitra Nandi, Sunando Kumar Patra
Extraction of $|V_{cb}|$ from $B\to D^{(*)}\ell\nu_\ell$ and the Standard Model predictions of $R(D^{(*)})$
8 pages, 2 captioned figures (5 figures and detailed discussion added, accepted for publication in JHEP)
null
10.1007/JHEP12(2017)060
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We extract $|V_{cb}|$ from the available data in the decay $B \to D^{(*)}\ell\nu_{\ell}$. Our analysis uses the $q^2(w)$ binned differential decay rates in different subsamples of $B\to D\ell\nu_\ell$ ($\ell = e, \mu$), while for the decay $B\to D^*\ell\nu_\ell$, the unfolded binned differential decay rates of four k...
[ { "created": "Mon, 31 Jul 2017 17:52:27 GMT", "version": "v1" }, { "created": "Sun, 26 Nov 2017 13:27:46 GMT", "version": "v2" } ]
2018-01-17
[ [ "Jaiswal", "Sneha", "" ], [ "Nandi", "Soumitra", "" ], [ "Patra", "Sunando Kumar", "" ] ]
We extract $|V_{cb}|$ from the available data in the decay $B \to D^{(*)}\ell\nu_{\ell}$. Our analysis uses the $q^2(w)$ binned differential decay rates in different subsamples of $B\to D\ell\nu_\ell$ ($\ell = e, \mu$), while for the decay $B\to D^*\ell\nu_\ell$, the unfolded binned differential decay rates of four kin...
hep-ph/9710358
Z. Hioki
L. Brzezinski, B. Grzadkowski and Z. Hioki
Effects of Non-Standard Interactions for the Energy Spectrum of Secondary Leptons in e^+e^- --> t t-bar
Final version, to appear in Int. J. Mod. Phys. A
Int.J.Mod.Phys. A14 (1999) 1261-1282
10.1142/S0217751X99000646
IFT-10-97 -- TOKUSHIMA 97-01
hep-ph hep-ex
null
The process of top-quark pair production followed by semileptonic decays at future high-energy e^+e^- linear colliders is investigated as a possible test of physics beyond the Standard Model. Assuming the most general non-standard forms for gamma t t-bar, Z t t-bar and Wtb couplings, the energy spectrum of the single...
[ { "created": "Tue, 14 Oct 1997 23:47:03 GMT", "version": "v1" }, { "created": "Fri, 17 Oct 1997 07:00:24 GMT", "version": "v2" }, { "created": "Fri, 31 Oct 1997 03:37:19 GMT", "version": "v3" }, { "created": "Fri, 25 Sep 1998 08:48:05 GMT", "version": "v4" } ]
2009-10-30
[ [ "Brzezinski", "L.", "" ], [ "Grzadkowski", "B.", "" ], [ "Hioki", "Z.", "" ] ]
The process of top-quark pair production followed by semileptonic decays at future high-energy e^+e^- linear colliders is investigated as a possible test of physics beyond the Standard Model. Assuming the most general non-standard forms for gamma t t-bar, Z t t-bar and Wtb couplings, the energy spectrum of the single l...
hep-ph/9304218
Rick Weller
John S. Hagelin, S. Kelley and Toshiaki Tanaka
Exact Supersymmetric Amplitude for \kkb\/ and \bbb\/ Mixing
11 pages plus 2 figures available on request, MIU-THP-92/60
Mod.Phys.Lett.A8:2737-2746,1993
10.1142/S0217732393003123
null
hep-ph
null
We present the most general supersymmetric amplitude for \kkb\/ and \bbb\/ mixing resulting from gluino box diagrams. We use this amplitude to place general constraints on the magnitude of flavor-changing squark mass mixings, and compare these constraints to theoretical predictions both in and beyond the Minimal Supe...
[ { "created": "Mon, 5 Apr 1993 18:35:24 GMT", "version": "v1" } ]
2010-11-01
[ [ "Hagelin", "John S.", "" ], [ "Kelley", "S.", "" ], [ "Tanaka", "Toshiaki", "" ] ]
We present the most general supersymmetric amplitude for \kkb\/ and \bbb\/ mixing resulting from gluino box diagrams. We use this amplitude to place general constraints on the magnitude of flavor-changing squark mass mixings, and compare these constraints to theoretical predictions both in and beyond the Minimal Supers...
1905.06322
Sergi Gonz\`alez-Sol\'is
Sergi Gonz\`alez-Sol\'is
Tau decays into two mesons: an overview
6 pages, 4 figures. Contribution to the Proceedings of the International Workshop "e+e- Collisions From Phi to Psi 2019", held in Novosibirsk, Russia, from February 25 to March 1, 2019. To be published in EPJ Web Of Conferences
null
10.1051/epjconf/201921208003
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We review the state-of-the-art theoretical analyses of tau decays into a pair of mesons and a neutrino. The participant vector and scalar form factors, $f_{+}(s)$ and $f_{0}(s)$, are described in the frame of Chiral Perturbation Theory with resonances supplemented by dispersion relations, and the physical parameters ...
[ { "created": "Wed, 15 May 2019 17:53:50 GMT", "version": "v1" } ]
2019-07-24
[ [ "Gonzàlez-Solís", "Sergi", "" ] ]
We review the state-of-the-art theoretical analyses of tau decays into a pair of mesons and a neutrino. The participant vector and scalar form factors, $f_{+}(s)$ and $f_{0}(s)$, are described in the frame of Chiral Perturbation Theory with resonances supplemented by dispersion relations, and the physical parameters of...
1308.6114
Thorsten Feldmann
Guido Bell (Univ. Oxford), Thorsten Feldmann (Univ. Siegen), Yu-Ming Wang (RWTH Aachen, TU Munich), Matthew W Y Yip (IPPP, Durham)
Light-Cone Distribution Amplitudes for Heavy-Quark Hadrons
39 pages, 11 figures
null
10.1007/JHEP11(2013)191
OUTP-13-15P; SI-HEP-2013-05, QFET-2013-05; TTK-13-19, SFB/CPP-13-60; TUM-HEP-899/13; IPPP/13/55, DCPT/13/110
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We construct parametrizations of light-cone distribution amplitudes (LCDAs) for B-mesons and Lambda_b-baryons that obey various theoretical constraints, and which are simple to use in factorization theorems relevant for phenomenological applications in heavy-flavour physics. In particular, we find the eigenfunctions ...
[ { "created": "Wed, 28 Aug 2013 10:11:15 GMT", "version": "v1" } ]
2015-06-17
[ [ "Bell", "Guido", "", "Univ. Oxford" ], [ "Feldmann", "Thorsten", "", "Univ. Siegen" ], [ "Wang", "Yu-Ming", "", "RWTH Aachen, TU Munich" ], [ "Yip", "Matthew W Y", "", "IPPP, Durham" ] ]
We construct parametrizations of light-cone distribution amplitudes (LCDAs) for B-mesons and Lambda_b-baryons that obey various theoretical constraints, and which are simple to use in factorization theorems relevant for phenomenological applications in heavy-flavour physics. In particular, we find the eigenfunctions of...
hep-ph/0208128
Mustafa Savci
T. M. Aliev, A. Ozpineci, M. Savci, C. Yuce
T--odd correlations in (B -> K* l^+ l^-) decay beyond standard model
15 pages, 8 figures, LaTeX formatted
Phys.Rev. D66 (2002) 115006
10.1103/PhysRevD.66.115006
metu-phys-hep-02-18
hep-ph
null
T--odd correlations as physical observables in the $B \rar K^\ast \ell^+ \ell^-$ decay have been studied using the most general form of the effective Hamiltonian. It is observed that these quantities are very sensitive to the new physics. We estimate the potential of discovery of these quantities at future hadron col...
[ { "created": "Tue, 13 Aug 2002 14:43:12 GMT", "version": "v1" }, { "created": "Wed, 30 Oct 2002 13:29:53 GMT", "version": "v2" } ]
2009-11-07
[ [ "Aliev", "T. M.", "" ], [ "Ozpineci", "A.", "" ], [ "Savci", "M.", "" ], [ "Yuce", "C.", "" ] ]
T--odd correlations as physical observables in the $B \rar K^\ast \ell^+ \ell^-$ decay have been studied using the most general form of the effective Hamiltonian. It is observed that these quantities are very sensitive to the new physics. We estimate the potential of discovery of these quantities at future hadron colli...
hep-ph/0012011
Uzan
Jean-Philippe Uzan (LPT, Orsay) and Francis Bernardeau (SPhT, CEA Saclay)
Lensing at cosmological scales: a test of higher dimensional gravity
4 pages, latex, 3 figures
Phys.Rev. D64 (2001) 083004
10.1103/PhysRevD.64.083004
LPT-ORSAY 00/129, SPhT-Saclay t00/169
hep-ph astro-ph gr-qc
null
Recent developments in gravitational lensing astronomy have paved the way to genuine mappings of the gravitational potential at cosmological scales. We stress that comparing these data with traditional large scale structure surveys will provide us with a test of gravity at such scales. These constraints could be of g...
[ { "created": "Fri, 1 Dec 2000 14:56:28 GMT", "version": "v1" } ]
2009-10-31
[ [ "Uzan", "Jean-Philippe", "", "LPT, Orsay" ], [ "Bernardeau", "Francis", "", "SPhT, CEA\n Saclay" ] ]
Recent developments in gravitational lensing astronomy have paved the way to genuine mappings of the gravitational potential at cosmological scales. We stress that comparing these data with traditional large scale structure surveys will provide us with a test of gravity at such scales. These constraints could be of gre...
1801.05432
Daniel Egana-Ugrinovic
Daniel Egana-Ugrinovic, Matthew Low, Joshua T. Ruderman
Charged Fermions Below 100 GeV
35 pages, 11 figures, 2 tables
null
10.1007/JHEP05(2018)012
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
How light can a fermion be if it has unit electric charge? We revisit the lore that LEP robustly excludes charged fermions lighter than about 100 GeV. We review LEP chargino searches, and find them to exclude charged fermions lighter than 90 GeV, assuming a higgsino-like cross section. However, if the charged fermion...
[ { "created": "Tue, 16 Jan 2018 19:00:05 GMT", "version": "v1" } ]
2018-05-23
[ [ "Egana-Ugrinovic", "Daniel", "" ], [ "Low", "Matthew", "" ], [ "Ruderman", "Joshua T.", "" ] ]
How light can a fermion be if it has unit electric charge? We revisit the lore that LEP robustly excludes charged fermions lighter than about 100 GeV. We review LEP chargino searches, and find them to exclude charged fermions lighter than 90 GeV, assuming a higgsino-like cross section. However, if the charged fermion c...
hep-ph/9311213
Gregory D. Mahlon
Gregory Mahlon
One Loop Multiphoton Helicity Amplitudes
27 pages + 4 uuencoded figures (included), Fermilab-Pub-93/327-T, RevTeX
Phys.Rev. D49 (1994) 2197-2210
10.1103/PhysRevD.49.2197
null
hep-ph
null
We use the solutions to the recursion relations for double-off-shell fermion currents to compute helicity amplitudes for $n$-photon scattering and electron-positron annihilation to photons in the massless limit of QED. The form of these solutions is simple enough to allow {\it all}\ of the integrations to be performe...
[ { "created": "Tue, 2 Nov 1993 22:28:39 GMT", "version": "v1" } ]
2009-10-22
[ [ "Mahlon", "Gregory", "" ] ]
We use the solutions to the recursion relations for double-off-shell fermion currents to compute helicity amplitudes for $n$-photon scattering and electron-positron annihilation to photons in the massless limit of QED. The form of these solutions is simple enough to allow {\it all}\ of the integrations to be performed ...
hep-ph/9510347
Michael Spira
M. Spira
HIGLU: A Program for the Calculation of the Total Higgs Production Cross Section at Hadron Colliders via Gluon Fusion including QCD Corrections
12 pages, latex, program available from spira@desy.de
null
null
DESY T-95-05
hep-ph
null
A program for the calculation of the total Higgs production cross section via gluon fusion at hadron colliders including next--to--leading order QCD corrections is presented. It is suitable especially for Standard Model Higgs bosons and the neutral Higgs particles of the minimal supersymmetric extension. The program ...
[ { "created": "Thu, 19 Oct 1995 17:54:46 GMT", "version": "v1" } ]
2007-05-23
[ [ "Spira", "M.", "" ] ]
A program for the calculation of the total Higgs production cross section via gluon fusion at hadron colliders including next--to--leading order QCD corrections is presented. It is suitable especially for Standard Model Higgs bosons and the neutral Higgs particles of the minimal supersymmetric extension. The program pr...