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hep-ph/0511332
Sven Heinemeyer
S. Heinemeyer, S. Kanemura, H. Logan, A. Raspereza, T. Tait, H. Baer, E.L. Berger, A. Birkedal, J.-C. Brient, M. Carena, J.A.R. Cembranos, S. Choi, S. Godfrey, J. Gunion, H.E. Haber, T. Han, H. Heath, S. Hesselbach, J. Kalinowski, W. Kilian, G. Moortgat-Pick, S. Moretti, S. Mrenna, M. Muhlleitner, F. Petriello,...
Toward High Precision Higgs-Boson Measurements at the International Linear e+e- Collider
128 pages, lots of figures. One subsection added and other minor modifications
ECONF C0508141:ALCPG0214,2005; ECONF C0508141:PLEN0044,2005
null
CERN-PH-TH/2005-228
hep-ph
null
This report reviews the properties of Higgs bosons in the Standard Model (SM) and its various extensions. We give an extensive overview about the potential of the ILC operated at centre-of-mass energies up to 1 TeV (including the gamma gamma option) for the determination of the Higgs boson properties. This comprises ...
[ { "created": "Tue, 29 Nov 2005 19:48:51 GMT", "version": "v1" }, { "created": "Thu, 23 Feb 2006 20:01:58 GMT", "version": "v2" } ]
2009-12-15
[ [ "Heinemeyer", "S.", "" ], [ "Kanemura", "S.", "" ], [ "Logan", "H.", "" ], [ "Raspereza", "A.", "" ], [ "Tait", "T.", "" ], [ "Baer", "H.", "" ], [ "Berger", "E. L.", "" ], [ "Birkedal", "A.", ...
This report reviews the properties of Higgs bosons in the Standard Model (SM) and its various extensions. We give an extensive overview about the potential of the ILC operated at centre-of-mass energies up to 1 TeV (including the gamma gamma option) for the determination of the Higgs boson properties. This comprises th...
hep-ph/0303048
Yu-Ping Kuang
Bin Zhang, Yu-Ping Kuang, Hong-Jian He, and C.-P. Yuan
Testing anomalous gauge couplings of the Higgs boson via weak-boson scatterings at the LHC
26-page RevTex file with 6 eps files for the figures using epsfig.sty. Some typos are corrected. This version is the same as that published in Phys. Rev. D 67, 114024 (2003)
Phys.Rev.D67:114024,2003
10.1103/PhysRevD.67.114024
TUHEP-TH-01127, UTHEP-03-13, MSUHEP-030103
hep-ph
null
We propose a sensitive way to test the anomalous HVV couplings (V=W(+/-),Z(0)) of the Higgs boson (H), which can arise from either the dimension-3 effective operator in a nonlinearly realized Higgs sector or the dimension-6 effective operators in a linearly realized Higgs sector, via studying the VV scattering proces...
[ { "created": "Thu, 6 Mar 2003 03:13:11 GMT", "version": "v1" }, { "created": "Sat, 26 Apr 2003 04:48:19 GMT", "version": "v2" }, { "created": "Thu, 3 Jul 2003 04:22:09 GMT", "version": "v3" } ]
2008-11-26
[ [ "Zhang", "Bin", "" ], [ "Kuang", "Yu-Ping", "" ], [ "He", "Hong-Jian", "" ], [ "Yuan", "C. -P.", "" ] ]
We propose a sensitive way to test the anomalous HVV couplings (V=W(+/-),Z(0)) of the Higgs boson (H), which can arise from either the dimension-3 effective operator in a nonlinearly realized Higgs sector or the dimension-6 effective operators in a linearly realized Higgs sector, via studying the VV scattering processe...
1910.06683
Roman Ryutin Dr
R.A. Ryutin
Central exclusive diffractive production of two-pion continuum at hadron colliders
14 pages, 16 figures, 3 Appendixes, corrected typos and new comments on the page 2
Eur.Phys.J. C79 (2019) no.12, 981
10.1140/epjc/s10052-019-7497-6
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Calculations of central exclusive diffractive di-pion continuum production are presented in the Regge-eikonal approach. Data from ISR, STAR, CDF and CMS were analyzed and compared with theoretical description. We also consider theoretical predictions for LHC, possible nuances and problems of calculations and prospect...
[ { "created": "Tue, 15 Oct 2019 12:33:51 GMT", "version": "v1" }, { "created": "Fri, 17 Jan 2020 11:13:05 GMT", "version": "v2" } ]
2020-01-20
[ [ "Ryutin", "R. A.", "" ] ]
Calculations of central exclusive diffractive di-pion continuum production are presented in the Regge-eikonal approach. Data from ISR, STAR, CDF and CMS were analyzed and compared with theoretical description. We also consider theoretical predictions for LHC, possible nuances and problems of calculations and prospects ...
2012.09120
Simone Amoroso
Simone Amoroso and Deepak Kar and Matthias Schott
How to discover QCD Instantons at the LHC
Work prepared in the context of the CERN TH workshop "Topological Effects in the Standard Model: Instantons, Sphalerons and Beyond at LHC"
null
10.1140/epjc/s10052-021-09412-1
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
The Standard Model of particle physics predicts the existence of quantum tunnelling processes across topological inequivalent vacua, known as Instantons. In the electroweak sector, instantons provide a source of baryon asymmetry within the Standard Model. In Quantum Chromodynamics they are linked to chiral symmetry b...
[ { "created": "Wed, 16 Dec 2020 18:03:10 GMT", "version": "v1" } ]
2021-07-28
[ [ "Amoroso", "Simone", "" ], [ "Kar", "Deepak", "" ], [ "Schott", "Matthias", "" ] ]
The Standard Model of particle physics predicts the existence of quantum tunnelling processes across topological inequivalent vacua, known as Instantons. In the electroweak sector, instantons provide a source of baryon asymmetry within the Standard Model. In Quantum Chromodynamics they are linked to chiral symmetry bre...
hep-ph/9308360
Stefan Dittmaier
A. Denner, S. Dittmaier
Gauge-Boson Production in Electron-Photon Collisions
7 pages + 5 figures appended as ps-files (uuencoded), latex, CERN-TH. 6980/93
null
null
null
hep-ph
null
We summarize results for the processes $e^-\gamma \to \nu W^-, e^-Z, e^-\gamma$ within the electroweak Standard Model. We discuss the essential features of the corresponding lowest-order cross-sections and present numerical results for the unpolarized cross-sections including the complete $O(\alpha)$ virtual, soft-ph...
[ { "created": "Mon, 30 Aug 1993 12:17:52 GMT", "version": "v1" }, { "created": "Wed, 1 Sep 1993 11:12:05 GMT", "version": "v2" } ]
2008-02-03
[ [ "Denner", "A.", "" ], [ "Dittmaier", "S.", "" ] ]
We summarize results for the processes $e^-\gamma \to \nu W^-, e^-Z, e^-\gamma$ within the electroweak Standard Model. We discuss the essential features of the corresponding lowest-order cross-sections and present numerical results for the unpolarized cross-sections including the complete $O(\alpha)$ virtual, soft-phot...
2212.02874
Hiromasa Takaura
Hiromasa Takaura
Determination of HQET nonperturbative matrix elements with renormalon subtraction using Fourier transform
6 pages, contribution to the proceedings of the 15th Quark Confinement and the Hadron Spectrum conference (ConfXV)
null
10.1051/epjconf/202227403003
KEK-TH-2479
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
As higher order perturbative series are available, it is becoming necessary to include nonperturbative effects in QCD calculations using the OPE. In order to systematically determine nonperturbative effects and to incorporate them into theoretical calculations, the renormalon problem should be resolved. We use a reno...
[ { "created": "Tue, 6 Dec 2022 10:31:36 GMT", "version": "v1" } ]
2023-01-11
[ [ "Takaura", "Hiromasa", "" ] ]
As higher order perturbative series are available, it is becoming necessary to include nonperturbative effects in QCD calculations using the OPE. In order to systematically determine nonperturbative effects and to incorporate them into theoretical calculations, the renormalon problem should be resolved. We use a renorm...
1105.5417
Camilo Garcia Cely
Antonio Delgado, Camilo Garcia Cely, Tao Han, Zhihui Wang
Phenomenology of a lepton triplet
28 pages, 17 figures. Version to appear in PRD
null
10.1103/PhysRevD.84.073007
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The most general phenomenological model involving a lepton triplet with hypercharge $\pm 1$ is constructed. A distinctive feature of this model is the prediction of a doubly charged lepton, and a new heavy Dirac neutrino. We study the phenomenology of these exotic leptons in both low-energy experiments and at the LHC...
[ { "created": "Thu, 26 May 2011 22:06:40 GMT", "version": "v1" }, { "created": "Tue, 4 Oct 2011 11:42:39 GMT", "version": "v2" } ]
2013-05-29
[ [ "Delgado", "Antonio", "" ], [ "Cely", "Camilo Garcia", "" ], [ "Han", "Tao", "" ], [ "Wang", "Zhihui", "" ] ]
The most general phenomenological model involving a lepton triplet with hypercharge $\pm 1$ is constructed. A distinctive feature of this model is the prediction of a doubly charged lepton, and a new heavy Dirac neutrino. We study the phenomenology of these exotic leptons in both low-energy experiments and at the LHC. ...
1007.3492
Richard Keith Ellis
John M Campbell and R. K. Ellis
MCFM for the Tevatron and the LHC
Talk presented by R.K Ellis at Loops and Legs in Quantum Field Theory 2010, Woerlitz, Germany, April 25-30, 2010, (6 pages and 4 figures)
Nucl.Phys.Proc.Suppl.205-206:10-15,2010
10.1016/j.nuclphysbps.2010.08.011
FERMILAB-CONF-10-244-T
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A summary is given of the current status of the next-to-leading order (NLO) parton-level integrator MCFM. Some details are given about the Higgs + 2-jet process and the production and decay of $t \bar{t}$, both of which have recently been added to the code. Using MCFM, comparisons between the Tevatron running at $\sq...
[ { "created": "Tue, 20 Jul 2010 19:50:43 GMT", "version": "v1" } ]
2010-12-13
[ [ "Campbell", "John M", "" ], [ "Ellis", "R. K.", "" ] ]
A summary is given of the current status of the next-to-leading order (NLO) parton-level integrator MCFM. Some details are given about the Higgs + 2-jet process and the production and decay of $t \bar{t}$, both of which have recently been added to the code. Using MCFM, comparisons between the Tevatron running at $\sqrt...
hep-ph/0409251
Don Colladay
Don Colladay and Patrick McDonald
Deformed Instantons
6 pages, proceedings for CPT and Lorentz Symmetry, Bloomington, IN, 2004
null
10.1142/9789812702173_0040
null
hep-ph
null
In this talk, instantons are discussed in the presence of Lorentz violation. Conventional topological arguments are applied to classify the modified solutions to the Yang-Mills equations according to the topological charge. Explicit perturbations to the instantons are calculated in detail for the case of unit topolog...
[ { "created": "Tue, 21 Sep 2004 18:48:51 GMT", "version": "v1" } ]
2016-11-03
[ [ "Colladay", "Don", "" ], [ "McDonald", "Patrick", "" ] ]
In this talk, instantons are discussed in the presence of Lorentz violation. Conventional topological arguments are applied to classify the modified solutions to the Yang-Mills equations according to the topological charge. Explicit perturbations to the instantons are calculated in detail for the case of unit topologic...
1404.5951
Johann Brehmer Mr
Johann Brehmer, Joerg Jaeckel, Tilman Plehn
Polarized WW Scattering on the Higgs Pole
20 pages, 11 figures, 2 tables. v2: minor changes, matches version to appear in PRD
Phys. Rev. D 90, 054023 (2014)
10.1103/PhysRevD.90.054023
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Higgs discovery has given us the Higgs-gauge sector as a new handle to search for physics beyond the Standard Model. This includes physics scenarios originally linked to massive gauge boson scattering at high energies. We investigate how one can separately probe the Higgs couplings to the longitudinal and transve...
[ { "created": "Wed, 23 Apr 2014 20:00:01 GMT", "version": "v1" }, { "created": "Mon, 15 Sep 2014 11:37:02 GMT", "version": "v2" } ]
2014-10-01
[ [ "Brehmer", "Johann", "" ], [ "Jaeckel", "Joerg", "" ], [ "Plehn", "Tilman", "" ] ]
The Higgs discovery has given us the Higgs-gauge sector as a new handle to search for physics beyond the Standard Model. This includes physics scenarios originally linked to massive gauge boson scattering at high energies. We investigate how one can separately probe the Higgs couplings to the longitudinal and transvers...
hep-ph/0309136
Yadong Yang
Xinqiang Li, Gongru Lu, Yadong Yang
Charmless $\bar{B}_s\to VV$ Decays in QCD Factorization
16pages. Typos and mistakes fixed. Numerical results changed
Phys.Rev.D68:114015,2003; Erratum-ibid.D71:019902,2005
10.1103/PhysRevD.68.114015 10.1103/PhysRevD.71.019902
null
hep-ph
null
The two body charmless decays of $B_s$ meson to light vector mesons are analyzed within the framework of QCD factorization. This approach implies that the nonfactorizable corrections to different helicity amplitudes are not the same. The effective parameters $a_i^h$ for helicity $h=0,+,-$ states receive different non...
[ { "created": "Fri, 12 Sep 2003 08:02:25 GMT", "version": "v1" }, { "created": "Wed, 15 Dec 2004 09:01:46 GMT", "version": "v2" } ]
2014-11-17
[ [ "Li", "Xinqiang", "" ], [ "Lu", "Gongru", "" ], [ "Yang", "Yadong", "" ] ]
The two body charmless decays of $B_s$ meson to light vector mesons are analyzed within the framework of QCD factorization. This approach implies that the nonfactorizable corrections to different helicity amplitudes are not the same. The effective parameters $a_i^h$ for helicity $h=0,+,-$ states receive different nonfa...
hep-ph/9705224
Matthias Burkardt
Matthias Burkardt
Mesons a in Collinear QCD Model
final version, to appear in PRD
Phys.Rev. D56 (1997) 7105-7118
10.1103/PhysRevD.56.7105
null
hep-ph hep-th
null
A phenomenological model for the quark structure of mesons is considered. The model is based on the tube model for QCD, where all quanta with nonzero transverse momenta are neglected. In the limit that the mass term of the gluons goes to infinity, the model is equivalent to a combination of the 't Hooft and Gross-Nev...
[ { "created": "Sun, 4 May 1997 14:22:21 GMT", "version": "v1" }, { "created": "Thu, 18 Sep 1997 15:36:16 GMT", "version": "v2" } ]
2009-10-30
[ [ "Burkardt", "Matthias", "" ] ]
A phenomenological model for the quark structure of mesons is considered. The model is based on the tube model for QCD, where all quanta with nonzero transverse momenta are neglected. In the limit that the mass term of the gluons goes to infinity, the model is equivalent to a combination of the 't Hooft and Gross-Neveu...
1304.4414
Balasubramanian Ananthanarayan
B. Ananthanarayan, Sumit K. Garg, Jayita Lahiri, P. Poulose
Probing the indefinite CP nature of the Higgs Boson through decay distributions in the process $e^+e^-\to t\bar{t}\Phi$
14 pages using revtex, 10 figures, corresponds to version accepted for publication in Phys. Rev. D.; compared to v1, discussion extended, figure added, table added, section reorganized
Phys. Rev. D 87, 114002 (2013)
10.1103/PhysRevD.87.114002
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The recently discovered scalar resonance at the LHC is now almost confirmed to be a Higgs Boson, whose CP properties are yet to be established. At the ILC with and without polarized beams, it may be possible to probe these properties at high precision. In this work, we study the possibility of probing departures from...
[ { "created": "Tue, 16 Apr 2013 12:21:02 GMT", "version": "v1" }, { "created": "Mon, 20 May 2013 05:00:17 GMT", "version": "v2" } ]
2013-06-05
[ [ "Ananthanarayan", "B.", "" ], [ "Garg", "Sumit K.", "" ], [ "Lahiri", "Jayita", "" ], [ "Poulose", "P.", "" ] ]
The recently discovered scalar resonance at the LHC is now almost confirmed to be a Higgs Boson, whose CP properties are yet to be established. At the ILC with and without polarized beams, it may be possible to probe these properties at high precision. In this work, we study the possibility of probing departures from t...
hep-ph/9612465
Valera Lyubovitskij
M.A.Ivanov (JINR, Dubna), M.P.Locher (PSI, Villigen), V.E.Lyubovitskij (JINR, Dubna and Tomsk Uni.)
Nucleon Form Factors in a Relativistic Three-Quark Model
Talk presented at the XIII International Seminar on High Energy Physics Problems "Relativistic Nuclear Physics and Quantum Chromodynamics", Dubna, Russia, 2-7 Sept. 1996, 8 pages, LaTeX, 6 Figures, 1 Table
null
null
null
hep-ph
null
We report the calculation of electromagnetic form factors of nucleons within a relativistic three-quark model with Gaussian shape for the nucleon-quark vertex. The allowed region for two adjustable parameters, the range parameter $\Lambda_N$ in the Gaussian and the constituent quark mass $m_q$, is obtained from fitti...
[ { "created": "Wed, 25 Dec 1996 06:41:46 GMT", "version": "v1" } ]
2007-05-23
[ [ "Ivanov", "M. A.", "", "JINR, Dubna" ], [ "Locher", "M. P.", "", "PSI, Villigen" ], [ "Lyubovitskij", "V. E.", "", "JINR, Dubna and Tomsk Uni." ] ]
We report the calculation of electromagnetic form factors of nucleons within a relativistic three-quark model with Gaussian shape for the nucleon-quark vertex. The allowed region for two adjustable parameters, the range parameter $\Lambda_N$ in the Gaussian and the constituent quark mass $m_q$, is obtained from fitting...
hep-ph/9910476
Andrey Egorov
A.M. Egorov, A.E. Lobanov, A.I. Studenikin
Neutrino Oscillations in Electromagnetic Fields
revised v4; 11 pages; significant revisions: (1) derivation of the Hamiltonian for the neutrino spin evolution in an electromangnetic field is included, (2) discussions of the influence of the longitudinal magnetic field on neutrino oscillations is also added. Accepted for publication in Phys. Lett. B, 2000
Phys.Lett. B491 (2000) 137-142
10.1016/S0370-2693(00)01006-6
null
hep-ph
null
Oscillations of neutrinos $\nu_L \leftrightarrow \nu_R$ in presence of an arbitrary electromagnetic field are considered. We introduce the Hamiltonian for the neutrino spin evolution equation that accounts for possible effects of interaction of neutrino magnetic $\mu$ and electric $\epsilon$ dipole moments with the t...
[ { "created": "Mon, 25 Oct 1999 17:16:42 GMT", "version": "v1" }, { "created": "Thu, 13 Jan 2000 16:53:09 GMT", "version": "v2" }, { "created": "Thu, 3 Feb 2000 19:08:44 GMT", "version": "v3" }, { "created": "Tue, 22 Aug 2000 17:52:08 GMT", "version": "v4" } ]
2009-10-31
[ [ "Egorov", "A. M.", "" ], [ "Lobanov", "A. E.", "" ], [ "Studenikin", "A. I.", "" ] ]
Oscillations of neutrinos $\nu_L \leftrightarrow \nu_R$ in presence of an arbitrary electromagnetic field are considered. We introduce the Hamiltonian for the neutrino spin evolution equation that accounts for possible effects of interaction of neutrino magnetic $\mu$ and electric $\epsilon$ dipole moments with the tra...
1608.04056
Lei Feng
Lei Feng, Yun-Feng Liang, Tie-Kuang Dong and Yi-Zhong Fan
Interpretations of the possible 42.7 GeV $\gamma$-ray line
6 pages, 4 figures; Physical Review D in press
null
10.1103/PhysRevD.94.043535
null
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recently Liang et al. found a tentative line signal at about 43 GeV in the directions of sixteen nearby Galaxy Clusters. If arising from dark matter annihilation, the mass of the dark matter particles should be $m_{\chi}\sim 43$ GeV and the annihilation cross section $\langle \sigma v \rangle \sim 5\times10^{-28}(\ov...
[ { "created": "Sun, 14 Aug 2016 03:57:33 GMT", "version": "v1" } ]
2016-09-21
[ [ "Feng", "Lei", "" ], [ "Liang", "Yun-Feng", "" ], [ "Dong", "Tie-Kuang", "" ], [ "Fan", "Yi-Zhong", "" ] ]
Recently Liang et al. found a tentative line signal at about 43 GeV in the directions of sixteen nearby Galaxy Clusters. If arising from dark matter annihilation, the mass of the dark matter particles should be $m_{\chi}\sim 43$ GeV and the annihilation cross section $\langle \sigma v \rangle \sim 5\times10^{-28}(\over...
1508.05180
T. Lappi
T. Lappi
Small-x, Diffraction and Vector Mesons
15 pages, 14 figures. Plenary talk at DIS 2015, Dallas, TX, April 2015
PoS(DIS2015)012
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This talk discusses recent progress in some topics relevant for deep inelastic scattering at small x. We discuss first differences and similarities between conventional collinear factorization and the dipole picture of deep inelastic scattering. Many of the recent theoretical advances at small x are related to taking...
[ { "created": "Fri, 21 Aug 2015 06:14:59 GMT", "version": "v1" } ]
2016-01-19
[ [ "Lappi", "T.", "" ] ]
This talk discusses recent progress in some topics relevant for deep inelastic scattering at small x. We discuss first differences and similarities between conventional collinear factorization and the dipole picture of deep inelastic scattering. Many of the recent theoretical advances at small x are related to taking c...
0809.4768
Tamas Biro S
T. S. Biro and G. Purcsel
Non-extensive equilibration in relativistic matter
Talk presented at SigmaPhi 2008 Conference, Crete, Greece. Submitted to Central European Journal for Physics
null
10.2478/s11534-009-0004-1
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a view of the non-extensive thermodynamics based on general composition rules. A formal logarithm maps these rules to the addition, which can be used to generate stationary distributions by standard techniques. We review the most commonly used rules and as an application we discuss the Tsallis-Pareto distr...
[ { "created": "Sat, 27 Sep 2008 12:59:41 GMT", "version": "v1" } ]
2009-11-13
[ [ "Biro", "T. S.", "" ], [ "Purcsel", "G.", "" ] ]
We present a view of the non-extensive thermodynamics based on general composition rules. A formal logarithm maps these rules to the addition, which can be used to generate stationary distributions by standard techniques. We review the most commonly used rules and as an application we discuss the Tsallis-Pareto distrib...
hep-ph/0309318
Sourov Roy
Subhendu Rakshit, Guy Raz, Sourov Roy, Yael Shadmi
Light GUT Triplets and Yukawa Splitting
5 pages, Revtex4, 1 EPS figure. To appear in PRD: Minor changes. Appendix dropped
Phys.Rev. D69 (2004) 095006
10.1103/PhysRevD.69.095006
WIS/24/03-SEPT-DPP
hep-ph
null
Triplet-mediated proton decay in Grand Unified Theories (GUTs) is usually suppressed by arranging a large triplet mass. Here we explore instead a mechanism for suppressing the couplings of the triplets to the first and second generations compared to the Yukawa couplings, so that the triplets' mass can be below the GU...
[ { "created": "Mon, 29 Sep 2003 09:33:46 GMT", "version": "v1" }, { "created": "Thu, 20 May 2004 09:00:48 GMT", "version": "v2" } ]
2009-11-10
[ [ "Rakshit", "Subhendu", "" ], [ "Raz", "Guy", "" ], [ "Roy", "Sourov", "" ], [ "Shadmi", "Yael", "" ] ]
Triplet-mediated proton decay in Grand Unified Theories (GUTs) is usually suppressed by arranging a large triplet mass. Here we explore instead a mechanism for suppressing the couplings of the triplets to the first and second generations compared to the Yukawa couplings, so that the triplets' mass can be below the GUT ...
hep-ph/0508066
Begum Umme Jamil
U. Jamil and J.K. Sarma
Regge behaviour of distribution functions and t and x-evolutions of gluon distribution function at low-x
19 pages, 7 figures
Pramana 69:167,2007
10.1007/s12043-007-0118-1
null
hep-ph
null
In this paper t and x-evolutions of gluon distribution function from Dokshitzer-Gribov-Lipatov-Altarelli-Parisi(DGLAP) evolution equation in leading order(LO) at low-x, assuming the Regge behaviour of quark and gluon at this limit, are presented. We compare our results of gluon distribution function with MRST 2001, M...
[ { "created": "Fri, 5 Aug 2005 07:01:12 GMT", "version": "v1" } ]
2014-11-18
[ [ "Jamil", "U.", "" ], [ "Sarma", "J. K.", "" ] ]
In this paper t and x-evolutions of gluon distribution function from Dokshitzer-Gribov-Lipatov-Altarelli-Parisi(DGLAP) evolution equation in leading order(LO) at low-x, assuming the Regge behaviour of quark and gluon at this limit, are presented. We compare our results of gluon distribution function with MRST 2001, MRS...
1104.0994
Kensuke Homma
Kensuke Homma, Dieter Habs, and Toshiki Tajima
Probing vacuum birefringence by phase-contrast Fourier imaging under fields of high-intensity lasers
14 pages, 9 figures. Accepted by Applied Physics B
null
10.1007/s00340-011-4568-2
null
hep-ph physics.optics quant-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In vacuum high-intensity lasers can cause photon-photon interaction via the process of virtual vacuum polarization which may be measured by the phase velocity shift of photons across intense fields. In the optical frequency domain, the photon-photon interaction is polarization-mediated described by the Euler-Heisenbe...
[ { "created": "Wed, 6 Apr 2011 02:46:21 GMT", "version": "v1" } ]
2015-05-27
[ [ "Homma", "Kensuke", "" ], [ "Habs", "Dieter", "" ], [ "Tajima", "Toshiki", "" ] ]
In vacuum high-intensity lasers can cause photon-photon interaction via the process of virtual vacuum polarization which may be measured by the phase velocity shift of photons across intense fields. In the optical frequency domain, the photon-photon interaction is polarization-mediated described by the Euler-Heisenberg...
1301.7654
Zhi-zhong Xing
Zhi-zhong Xing
Properties of CP Violation in Neutrino-Antineutrino Oscillations
LaTex 9 pages, 1 figure. More discussions and references added. Accepted for publication in Phys. Rev. D
null
10.1103/PhysRevD.87.053019
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
If the massive neutrinos are the Majorana particles, how to pin down the Majorana CP-violating phases will eventually become an unavoidable question relevant to the future neutrino experiments. We argue that a study of neutrino-antineutrino oscillations will greatly help in this regard, although the issue remains pur...
[ { "created": "Thu, 31 Jan 2013 15:46:12 GMT", "version": "v1" }, { "created": "Fri, 15 Mar 2013 02:20:57 GMT", "version": "v2" } ]
2013-04-03
[ [ "Xing", "Zhi-zhong", "" ] ]
If the massive neutrinos are the Majorana particles, how to pin down the Majorana CP-violating phases will eventually become an unavoidable question relevant to the future neutrino experiments. We argue that a study of neutrino-antineutrino oscillations will greatly help in this regard, although the issue remains purel...
hep-ph/9709277
Alessandro
Elena Accomando, Alessandro Ballestrero and Marco Pizzio
Six fermion processes at future $e^+ e^-$ colliders: signal and irreducible background for top, WWZ and Higgs physics in charged current final states
Latex, 16 pages, 8 ps figures included; to appear in the Proceedings of the "Joint ECFA/DESY Study on Physics and Detectors for the Linear Collider", February to November 1996, ed. R. Settles, Desy 97-123E
null
null
null
hep-ph
null
We compute several total and differential cross sections relevant to top, WWZ and Higgs physics at future $e^+e^-$ colliders taking into account the full set of Feynman diagrams for six fermion final states. We examine in particular charged current processes, in which final particles cannot be formed by three Z's d...
[ { "created": "Mon, 8 Sep 1997 08:31:29 GMT", "version": "v1" } ]
2016-09-06
[ [ "Accomando", "Elena", "" ], [ "Ballestrero", "Alessandro", "" ], [ "Pizzio", "Marco", "" ] ]
We compute several total and differential cross sections relevant to top, WWZ and Higgs physics at future $e^+e^-$ colliders taking into account the full set of Feynman diagrams for six fermion final states. We examine in particular charged current processes, in which final particles cannot be formed by three Z's decay...
hep-ph/0503090
D. Delepine
D.Delepine, G. Lopez Castro, L.T. Lopez Lozano
CP violation in semileptonic tau lepton decays
5 pages, 3 figures, version published in Phys.Rev.D
Phys.Rev. D72 (2005) 033009
10.1103/PhysRevD.72.033009
null
hep-ph
null
The leading order contribution to the direct CP asymmetry in tau^{+/-} -> K^{+/-} pi^0 nu_{tau} decay rates is evaluated within the Standard Model. The weak phase required for CP violation is introduced through an interesting mechanism involving second order weak interactions, which is also responsible for tiny viola...
[ { "created": "Wed, 9 Mar 2005 21:58:19 GMT", "version": "v1" }, { "created": "Tue, 16 Aug 2005 01:40:26 GMT", "version": "v2" } ]
2009-11-11
[ [ "Delepine", "D.", "" ], [ "Castro", "G. Lopez", "" ], [ "Lozano", "L. T. Lopez", "" ] ]
The leading order contribution to the direct CP asymmetry in tau^{+/-} -> K^{+/-} pi^0 nu_{tau} decay rates is evaluated within the Standard Model. The weak phase required for CP violation is introduced through an interesting mechanism involving second order weak interactions, which is also responsible for tiny violati...
1403.1495
Wieslaw Sobk\'ow
W. Sobk\'ow (Institute of Theoretical Physics, University of Wroclaw, Poland)
Right-handed chirality of muon neutrinos in polarized muon decay at rest
9 pages, 2 figures, 1 table. arXiv admin note: substantial text overlap with arXiv:1102.1331 (unpublished)
Eur. Phys. J. C 74, 2997 (2014)
10.1140/epjc/s10052-014-2997-x
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, we analyze the polarized muon decay at rest (PMDaR) admitting the non-standard V+A interaction in addition to the standard V-A interaction. We show that the angle-energy distribution of Dirac muon neutrinos is sensitive to the interference terms between the standard V-A coupling of left-chirality muon ...
[ { "created": "Thu, 6 Mar 2014 17:05:40 GMT", "version": "v1" }, { "created": "Thu, 24 Jul 2014 23:52:32 GMT", "version": "v2" } ]
2016-05-30
[ [ "Sobków", "W.", "", "Institute of Theoretical Physics, University of Wroclaw,\n Poland" ] ]
In this paper, we analyze the polarized muon decay at rest (PMDaR) admitting the non-standard V+A interaction in addition to the standard V-A interaction. We show that the angle-energy distribution of Dirac muon neutrinos is sensitive to the interference terms between the standard V-A coupling of left-chirality muon ne...
hep-ph/0311111
Tentyukov Mikhail
M. Tentyukov and J. Fleischer
Parallel Computation of Feynman diagrams with DIANA
23 pages, Latex using psfig, epsf and alltt, 3 figures
Comput.Phys.Commun. 160 (2004) 167-186
10.1016/j.cpc.2004.03.005
null
hep-ph
null
Co-operation of the Feynman DIagram ANAlyzer (DIANA) with the underlying operational system (UNIX) is presented. We discuss operators to run external commands and a recent development of parallel processing facilities and an extension in the spirit of a component model.
[ { "created": "Sun, 9 Nov 2003 21:02:17 GMT", "version": "v1" } ]
2009-11-10
[ [ "Tentyukov", "M.", "" ], [ "Fleischer", "J.", "" ] ]
Co-operation of the Feynman DIagram ANAlyzer (DIANA) with the underlying operational system (UNIX) is presented. We discuss operators to run external commands and a recent development of parallel processing facilities and an extension in the spirit of a component model.
1607.01212
Wolfgang Waltenberger
W. Adam, J. Pradler, J. Schieck, C. Schwanda, W. Waltenberger (editors), A. Celis, A. Crivellin, C. V. Welke, C. Kiesling, C. Niehoff, D. Salerno, D. Straub, E. Molinaro, E. J. Chun, F. Kahlhoefer, F. Sannino, J. List, J. F. Kamenik, K. Iordanidou, K. Howe, L. Li Gioi, M. Jeitler, M. Schumann, M. Flechl, M. Bro...
LHCSki 2016 - A First Discussion of 13 TeV Results
Proceedings of the LHCSki2016 Workshop, with contributions from the ATLAS, Belle II, CMS, and LHCb collaborations
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
These are the proceedings of the LHCSki 2016 workshop "A First Discussion of 13 TeV Results" that has been held at the Obergurgl Universit\"atszentrum, Tirol, Austria, April 10 - 15, 2016. In this workshop the consequences of the most recent results from the LHC have been discussed, with a focus also on the interplay...
[ { "created": "Tue, 5 Jul 2016 12:03:26 GMT", "version": "v1" }, { "created": "Fri, 8 Jul 2016 20:03:44 GMT", "version": "v2" } ]
2016-07-12
[ [ "Adam", "W.", "", "editors" ], [ "Pradler", "J.", "", "editors" ], [ "Schieck", "J.", "", "editors" ], [ "Schwanda", "C.", "", "editors" ], [ "Waltenberger", "W.", "", "editors" ], [ "Celis", "A.", "" ...
These are the proceedings of the LHCSki 2016 workshop "A First Discussion of 13 TeV Results" that has been held at the Obergurgl Universit\"atszentrum, Tirol, Austria, April 10 - 15, 2016. In this workshop the consequences of the most recent results from the LHC have been discussed, with a focus also on the interplay w...
hep-ph/9808455
Mark Wusthoff
D.Yu. Ivanov, M. Wusthoff
Hard diffractive Photon-Proton Scattering at large t
14 pages, LaTex, 2 figures
Eur.Phys.J.C8:107-114,1999
10.1007/s100529901049
DTP/98/56
hep-ph
null
We propose to test perturbative QCD in the Regge limit by means of diffractive photon scattering $\gamma p \to \gamma X$ at large $t$ and very high energies $W^2\gg |t|\gg \Lambda^2_{QCD}$. The helicity amplitudes of this process were calculated using the Lipatov solution of the BFKL equation for $t\neq 0$. We found ...
[ { "created": "Fri, 28 Aug 1998 15:54:47 GMT", "version": "v1" } ]
2011-09-13
[ [ "Ivanov", "D. Yu.", "" ], [ "Wusthoff", "M.", "" ] ]
We propose to test perturbative QCD in the Regge limit by means of diffractive photon scattering $\gamma p \to \gamma X$ at large $t$ and very high energies $W^2\gg |t|\gg \Lambda^2_{QCD}$. The helicity amplitudes of this process were calculated using the Lipatov solution of the BFKL equation for $t\neq 0$. We found th...
hep-ph/0101196
Fritz W. Bopp
Fritz W. Bopp
Baryon Transport in Dual Models and the Possibility of a Backward Peak in Diffraction
presented at the conference 30th International Symposium on Multiparticle Dynamics, Tihani, October 9 - 15, 2000
null
null
SI-01-2
hep-ph
null
Dual string models contain significant baryon transfers and seem essentially consistent with the available data. We here turn to a careful consideration of the relevant topological structures. The baryon transfer is associated with one of two possible types of cuts in various baryonium exchanges. As the baryonium wit...
[ { "created": "Wed, 17 Jan 2001 18:29:25 GMT", "version": "v1" } ]
2007-05-23
[ [ "Bopp", "Fritz W.", "" ] ]
Dual string models contain significant baryon transfers and seem essentially consistent with the available data. We here turn to a careful consideration of the relevant topological structures. The baryon transfer is associated with one of two possible types of cuts in various baryonium exchanges. As the baryonium with ...
1201.2747
Asan Damanik
Asan Damanik
Nonzero $\theta_{13}$ and Neutrino Masses from Modified Neutrino Mixing Matrix
13 pages, no figure, some references added, and slight revision due to reviewer(s) comments, to be published in IJMPA
Int. J. Mod. Phys. A 27:1250091, 2012
10.1142/S0217751X12500911
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The nonzero and relatively large $\theta_{13}$ have been reported by Daya Bay, T2K, MINOS, and Double Chooz Collaborations. In order to accommodate the nonzero $\theta_{13}$, we modified the tribimaximal (TB), bimaxima (BM), and democratic (DC) neutrino mixing matrices. From three modified neutrino mixing matrices, t...
[ { "created": "Fri, 13 Jan 2012 06:41:07 GMT", "version": "v1" }, { "created": "Wed, 29 Feb 2012 17:26:03 GMT", "version": "v2" }, { "created": "Mon, 12 Mar 2012 13:03:21 GMT", "version": "v3" }, { "created": "Mon, 11 Jun 2012 10:54:51 GMT", "version": "v4" } ]
2012-07-02
[ [ "Damanik", "Asan", "" ] ]
The nonzero and relatively large $\theta_{13}$ have been reported by Daya Bay, T2K, MINOS, and Double Chooz Collaborations. In order to accommodate the nonzero $\theta_{13}$, we modified the tribimaximal (TB), bimaxima (BM), and democratic (DC) neutrino mixing matrices. From three modified neutrino mixing matrices, two...
hep-ph/9512287
John F. Donoghue
John F. Donoghue (Univ. of Massachusetts, Amherst)
Gravity and Effective Field Theory: A Talk for Phenomenologists
4 pages, Latex, no figures, Invited talk at the Intl. Symposium on Particle Theory and Phenomenology (Iowa State Univ., May 1995) to be published in the proceedings. (Readers desiring a more thorough treatment are referred instead to gr-qc/9512024, cross-listed below)
null
null
null
hep-ph
null
I briefly summarized some recent work which uses the techniques of effective field theory to make quantum predictions in general relativity. In contrast to conventional expectations, these are in fact well behaved. The leading quantum correction to the interaction of two heavy masses is used as a specific example.
[ { "created": "Tue, 12 Dec 1995 19:23:20 GMT", "version": "v1" } ]
2007-05-23
[ [ "Donoghue", "John F.", "", "Univ. of Massachusetts, Amherst" ] ]
I briefly summarized some recent work which uses the techniques of effective field theory to make quantum predictions in general relativity. In contrast to conventional expectations, these are in fact well behaved. The leading quantum correction to the interaction of two heavy masses is used as a specific example.
1109.3236
Seung-il Nam
Seung-il Nam, Byung-Geel Yu
Photoproduction of K* meson off the proton target with the Regge contributions
10 pages, 11 figures
null
null
KIAS-P11055
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the K* Lambda(1116) photoproduction off the proton target, employing the tree-level Born approximation within the effective Lagrangian approach. We take into account the kappa, K, and K* exchanges in the t channel in addition to the ground-state nucleon- and hyperon-pole contributions in the s and u ch...
[ { "created": "Thu, 15 Sep 2011 01:40:48 GMT", "version": "v1" }, { "created": "Tue, 19 Jun 2012 04:23:29 GMT", "version": "v2" } ]
2012-06-20
[ [ "Nam", "Seung-il", "" ], [ "Yu", "Byung-Geel", "" ] ]
We investigate the K* Lambda(1116) photoproduction off the proton target, employing the tree-level Born approximation within the effective Lagrangian approach. We take into account the kappa, K, and K* exchanges in the t channel in addition to the ground-state nucleon- and hyperon-pole contributions in the s and u chan...
1412.8717
Bennie F. L. Ward
A. Mukhopadhyay (1), B.F.L. Ward (1) ((1) Baylor University, Waco, TX, USA)
Interplay between IR-Improved DGLAP-CS Theory and the Precision of an NLO ME Matched Parton Shower MC in Relation to LHCb Data
15 pages; 4 figures. arXiv admin note: substantial text overlap with arXiv:1305.0023, arXiv:1208.4750; improved text, improved figures
Mod. Phys. Lett. A 31 (2016) 1650063
10.1142/S0217732316500632
BU-HEPP-14-10
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We use comparison with recent LHCb data on single Z/\gamma^* production and decay to lepton pairs as a vehicle to study the current status of the application of our approach of {\it exact} amplitude-based resummation in quantum field theory to precision QCD calculations, by realistic MC event generator methods, as ne...
[ { "created": "Tue, 30 Dec 2014 18:21:12 GMT", "version": "v1" }, { "created": "Tue, 10 Mar 2015 20:05:38 GMT", "version": "v2" } ]
2016-03-30
[ [ "Mukhopadhyay", "A.", "" ], [ "Ward", "B. F. L.", "" ] ]
We use comparison with recent LHCb data on single Z/\gamma^* production and decay to lepton pairs as a vehicle to study the current status of the application of our approach of {\it exact} amplitude-based resummation in quantum field theory to precision QCD calculations, by realistic MC event generator methods, as need...
1009.4612
Fulvia De Fazio
Pietro Colangelo, Fulvia De Fazio and Wei Wang
Nonleptonic $B_s$ to charmonium decays: analyses in pursuit of determining the weak phase $\beta_s$
LaTeX, 17 pages, 2 Eps figures
Phys.Rev.D83:094027,2011
10.1103/PhysRevD.83.094027
BARI-TH/2010-634
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze nonleptonic $B_s$ decays to a charmonium state and a light meson, induced by the $b \to c {\bar c}s$ transition, which are useful to access the $B_s$-${\bar B}_s$ mixing phase $\beta_s$. We use generalized factorization and $SU(3)_F$ symmetry to relate such modes to correspondent $B$ decay channels. We dis...
[ { "created": "Thu, 23 Sep 2010 13:40:12 GMT", "version": "v1" } ]
2011-06-06
[ [ "Colangelo", "Pietro", "" ], [ "De Fazio", "Fulvia", "" ], [ "Wang", "Wei", "" ] ]
We analyze nonleptonic $B_s$ decays to a charmonium state and a light meson, induced by the $b \to c {\bar c}s$ transition, which are useful to access the $B_s$-${\bar B}_s$ mixing phase $\beta_s$. We use generalized factorization and $SU(3)_F$ symmetry to relate such modes to correspondent $B$ decay channels. We discu...
1802.09498
Soumya Sadhukhan
Subhendra Mohanty and Soumya Sadhukhan
Explanation of IceCube spectrum with $\nu\rightarrow 3 \nu$ neutrino splitting in a $\nu$2HDM model
19 pages, 8 figures, Journal version to appear in JHEP
null
10.1007/JHEP10(2018)111
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A single power law flux spectrum of high energy neutrinos does not adequately explain the entire 60 TeV to 10 PeV event spectrum observed at IceCube, specially the excess of PeV events and the lack of Glashow resonance events expected at 6.3 PeV cannot be simultaneously explained by a single power law source neutrino...
[ { "created": "Mon, 26 Feb 2018 18:27:46 GMT", "version": "v1" }, { "created": "Sun, 7 Oct 2018 15:02:43 GMT", "version": "v2" } ]
2018-11-14
[ [ "Mohanty", "Subhendra", "" ], [ "Sadhukhan", "Soumya", "" ] ]
A single power law flux spectrum of high energy neutrinos does not adequately explain the entire 60 TeV to 10 PeV event spectrum observed at IceCube, specially the excess of PeV events and the lack of Glashow resonance events expected at 6.3 PeV cannot be simultaneously explained by a single power law source neutrino f...
1701.07894
Yoritaka Iwata
Yoritaka Iwata
Heavy neutrino potential for neutrinoless double beta decay
To be published in Proc. Sci. (oral presentation at INPC 2016)
PoS (INPC2016) 240
10.22323/1.281.0240
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Heavy neutrino potential for neutrinoless double beta decay is studied with focusing on its statistical property. The existence condition for heavy neutrinos is also presented. In particular sterile neutrinos are possible candidate for heavy nuetrinos. The statistics provide a gross view of understanding amplitude of...
[ { "created": "Thu, 26 Jan 2017 22:33:50 GMT", "version": "v1" } ]
2018-04-13
[ [ "Iwata", "Yoritaka", "" ] ]
Heavy neutrino potential for neutrinoless double beta decay is studied with focusing on its statistical property. The existence condition for heavy neutrinos is also presented. In particular sterile neutrinos are possible candidate for heavy nuetrinos. The statistics provide a gross view of understanding amplitude of c...
0912.4829
Takahiro Ueda
Yoshio Kitadono, Ken Sasaki, Takahiro Ueda and Tsuneo Uematsu
Heavy quark effects on parton distribution functions in the unpolarized virtual photon up to the next-to-leading order in QCD
16 pages, 16 figures, version to appear in Phys. Rev. D
null
10.1103/PhysRevD.81.074029
HUPD-0901, YNU-HEPTh-09-102, UTHEP-602, KUNS-2243
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the heavy quark mass effects on the parton distribution functions in the unpolarized virtual photon up to the next-to-leading order in QCD. Our formalism is based on the QCD-improved parton model described by the DGLAP evolution equation as well as on the operator product expansion supplemented by the ...
[ { "created": "Thu, 24 Dec 2009 11:04:07 GMT", "version": "v1" }, { "created": "Wed, 31 Mar 2010 07:45:59 GMT", "version": "v2" } ]
2015-03-13
[ [ "Kitadono", "Yoshio", "" ], [ "Sasaki", "Ken", "" ], [ "Ueda", "Takahiro", "" ], [ "Uematsu", "Tsuneo", "" ] ]
We investigate the heavy quark mass effects on the parton distribution functions in the unpolarized virtual photon up to the next-to-leading order in QCD. Our formalism is based on the QCD-improved parton model described by the DGLAP evolution equation as well as on the operator product expansion supplemented by the ma...
hep-ph/9210255
Oleg Tarasov
D.J. Broadhurst, A.L. Kataev and O.V. Tarasov
Analytical on-shell QED results: 3-loop vacuum polarization, 4-loop beta-function and the muon anomaly
LaTex, 11 pages, figures available from O.V.T. CERN--TH. 6602/92, OUT--4102--39, BI--TP--92/33
Phys.Lett.B298:445-452,1993
10.1016/0370-2693(93)91849-I
null
hep-ph hep-th
null
We present the results of analytical calculations of the 3-loop contributions to the asymptotic photon vacuum polarization function, in the on shell scheme, and of the 4-loop contributions to the on shell QED beta-function. These are used to evaluate various 4-loop and 5-loop contributions to the muon anomaly. Our an...
[ { "created": "Wed, 21 Oct 1992 10:56:07 GMT", "version": "v1" } ]
2019-08-17
[ [ "Broadhurst", "D. J.", "" ], [ "Kataev", "A. L.", "" ], [ "Tarasov", "O. V.", "" ] ]
We present the results of analytical calculations of the 3-loop contributions to the asymptotic photon vacuum polarization function, in the on shell scheme, and of the 4-loop contributions to the on shell QED beta-function. These are used to evaluate various 4-loop and 5-loop contributions to the muon anomaly. Our anal...
hep-ph/0409343
Asmaa Abada
Asmaa Abada, Habib Aissaoui, Marta Losada
A model for leptogenesis at the TeV scale
14 pages, 2 eps figures to appear in Nuclear Physics B
Nucl.Phys. B728 (2005) 55-66
10.1016/j.nuclphysb.2005.08.003
LPT Orsay/04-30,CI-UAN 04-16FT
hep-ph
null
We consider the mechanism of thermal leptogenesis at the TeV scale in the context of an extension of the Standard Model with 4 generations and the inclusion of four right-handed Majorana neutrinos. We obtain a value for the baryon asymmetry of the Universe in accordance with observations by solving the full set of ...
[ { "created": "Wed, 29 Sep 2004 15:26:26 GMT", "version": "v1" }, { "created": "Fri, 2 Sep 2005 16:41:16 GMT", "version": "v2" } ]
2016-09-06
[ [ "Abada", "Asmaa", "" ], [ "Aissaoui", "Habib", "" ], [ "Losada", "Marta", "" ] ]
We consider the mechanism of thermal leptogenesis at the TeV scale in the context of an extension of the Standard Model with 4 generations and the inclusion of four right-handed Majorana neutrinos. We obtain a value for the baryon asymmetry of the Universe in accordance with observations by solving the full set of coup...
1111.5835
Sergey Afonin
S.S. Afonin
Veneziano like amplitude as a test for AdS/QCD models
9 pages, accepted by the European Physical Journal C. arXiv admin note: substantial text overlap with arXiv:1102.2740
null
10.1140/epjc/s10052-011-1830-z
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The high energy asymptotics of QCD correlation functions is often used as a test for bottom-up holographic models. Since QCD is not strongly coupled in the ultraviolet domain, such a test may look questionable. We propose that the sum over resonance poles emerging in correlators of a bottom-up model should reproduce ...
[ { "created": "Thu, 24 Nov 2011 19:06:16 GMT", "version": "v1" } ]
2015-06-03
[ [ "Afonin", "S. S.", "" ] ]
The high energy asymptotics of QCD correlation functions is often used as a test for bottom-up holographic models. Since QCD is not strongly coupled in the ultraviolet domain, such a test may look questionable. We propose that the sum over resonance poles emerging in correlators of a bottom-up model should reproduce th...
hep-ph/9802207
Peter Filip
Peter Filip
Jupiter Effect (Asymmetrical Production of Dilepton Pairs)
TeX+lamuphys.sty, talk presented at HEP97 EPS Conference, Jerusalem
null
null
EPS/HEP97/T-608
hep-ph
null
Specific results of the computer simulation of dilepton production from expanding pion gas created in Pb+Pb 160 GeV/n collisions are presented. Azimuthal asymmetry of dilepton pairs in non-central collisions and interesting shape of the rapidity distribution of dilepton pairs are predicted. These results are understo...
[ { "created": "Sun, 1 Feb 1998 13:01:46 GMT", "version": "v1" } ]
2007-05-23
[ [ "Filip", "Peter", "" ] ]
Specific results of the computer simulation of dilepton production from expanding pion gas created in Pb+Pb 160 GeV/n collisions are presented. Azimuthal asymmetry of dilepton pairs in non-central collisions and interesting shape of the rapidity distribution of dilepton pairs are predicted. These results are understood...
1308.3176
Mario Mitter
Mario Mitter, Bernd-Jochen Schaefer
Fluctuations and the axial anomaly with three quark flavors
12 pages, 11 figures, accepted version
Phys. Rev. D 89, 054027 (2014)
10.1103/PhysRevD.89.054027
null
hep-ph hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The role of the axial anomaly in the chiral phase transition at finite temperature and quark chemical potential is investigated within a non-perturbative functional renormalization group approach. The flow equation for the grand potential is solved to leading-order in a derivative expansion of a three flavor quark-me...
[ { "created": "Wed, 14 Aug 2013 17:02:47 GMT", "version": "v1" }, { "created": "Thu, 24 Apr 2014 12:58:59 GMT", "version": "v2" } ]
2014-04-25
[ [ "Mitter", "Mario", "" ], [ "Schaefer", "Bernd-Jochen", "" ] ]
The role of the axial anomaly in the chiral phase transition at finite temperature and quark chemical potential is investigated within a non-perturbative functional renormalization group approach. The flow equation for the grand potential is solved to leading-order in a derivative expansion of a three flavor quark-meso...
1302.4438
Bryan Zald\'ivar Montero
Yann Mambrini, Keith A. Olive, Jeremie Quevillon and Bryan Zaldivar
Gauge Coupling Unification and Non-Equilibrium Thermal Dark Matter
4 pages, 2 figures, 1 table
null
10.1103/PhysRevLett.110.241306
null
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study a new mechanism for the production of dark matter in the universe which does not rely on thermal equilibrium. Dark matter is populated from the thermal bath subsequent to inflationary reheating via a massive mediator whose mass is above the reheating scale, T_R. To this end, we consider models with an extra ...
[ { "created": "Mon, 18 Feb 2013 21:00:01 GMT", "version": "v1" } ]
2013-06-19
[ [ "Mambrini", "Yann", "" ], [ "Olive", "Keith A.", "" ], [ "Quevillon", "Jeremie", "" ], [ "Zaldivar", "Bryan", "" ] ]
We study a new mechanism for the production of dark matter in the universe which does not rely on thermal equilibrium. Dark matter is populated from the thermal bath subsequent to inflationary reheating via a massive mediator whose mass is above the reheating scale, T_R. To this end, we consider models with an extra U(...
1801.01124
Bartosz Fornal
Bartosz Fornal, Benjamin Grinstein
Dark Matter Interpretation of the Neutron Decay Anomaly
5 pages, 2 figures; v2: references added, further nuclear physics experimental signatures proposed; v3: published PRL version with an extended section on $n \rightarrow \chi \ e^+ e^-$ and some inline equations highlighted for visibility
Phys. Rev. Lett. 120, 191801 (2018)
10.1103/PhysRevLett.120.191801
null
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
There is a long-standing discrepancy between the neutron lifetime measured in beam and bottle experiments. We propose to explain this anomaly by a dark decay channel for the neutron, involving one or more dark sector particles in the final state. If any of these particles are stable, they can be the dark matter. We c...
[ { "created": "Wed, 3 Jan 2018 19:00:00 GMT", "version": "v1" }, { "created": "Mon, 15 Jan 2018 10:20:02 GMT", "version": "v2" }, { "created": "Wed, 9 May 2018 17:40:05 GMT", "version": "v3" } ]
2018-05-10
[ [ "Fornal", "Bartosz", "" ], [ "Grinstein", "Benjamin", "" ] ]
There is a long-standing discrepancy between the neutron lifetime measured in beam and bottle experiments. We propose to explain this anomaly by a dark decay channel for the neutron, involving one or more dark sector particles in the final state. If any of these particles are stable, they can be the dark matter. We con...
0806.3662
Jean-Philippe Lansberg
M. Klasen, J.P. Lansberg
Perspectives for inclusive quarkonium production in photon-photon collisions at the LHC
6 pages, 4 figures. Invited talk given by J.P. Lansberg at the Workshop on "High-energy photon collisions at the LHC", April 22-25, 2008, CERN, Switzerland. To appear in the proceedings
Nucl.Phys.Proc.Suppl.179-180:226-231,2008
10.1016/j.nuclphysbps.2008.07.028
LPSC 08-068
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We report on the current status of knowledge on inclusive quarkonium production in high-energy photon-photon collisions. As a perspective for the LHC, we compute various production cross sections via direct photon-photon fusion in ultra-peripheral pp, pA and AA collisions at the LHC using the tree-level quarkonium am...
[ { "created": "Mon, 23 Jun 2008 12:22:08 GMT", "version": "v1" } ]
2008-12-18
[ [ "Klasen", "M.", "" ], [ "Lansberg", "J. P.", "" ] ]
We report on the current status of knowledge on inclusive quarkonium production in high-energy photon-photon collisions. As a perspective for the LHC, we compute various production cross sections via direct photon-photon fusion in ultra-peripheral pp, pA and AA collisions at the LHC using the tree-level quarkonium ampl...
1101.1289
Kentarou Mawatari
K. Mawatari, Y. Takaesu
HELAS and MadGraph with goldstinos
9 pages, 6 figures; a footnote and a reference added, version to appear in EPJC
Eur.Phys.J.C71:1640,2011
10.1140/epjc/s10052-011-1640-3
KEK-TH-1437
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Fortran subroutines to calculate helicity amplitudes with goldstinos, which appear as the longitudinal modes of massive gravitinos in high energy processes, are added to the HELAS (HELicity Amplitude Subroutines) library. They are coded in such a way that arbitrary amplitudes with external goldstinos can be generated...
[ { "created": "Thu, 6 Jan 2011 20:33:57 GMT", "version": "v1" }, { "created": "Tue, 28 Jun 2011 13:11:48 GMT", "version": "v2" } ]
2011-06-29
[ [ "Mawatari", "K.", "" ], [ "Takaesu", "Y.", "" ] ]
Fortran subroutines to calculate helicity amplitudes with goldstinos, which appear as the longitudinal modes of massive gravitinos in high energy processes, are added to the HELAS (HELicity Amplitude Subroutines) library. They are coded in such a way that arbitrary amplitudes with external goldstinos can be generated a...
1103.4624
Yanrui Liu
Yan-Rui Liu and Makoto Oka
$\Lambda_c N$ bound states revisited
25 pages, 8 figures, 15 tables; publication version
Phys. Rev. D 85, 014015 (2012)
10.1103/PhysRevD.85.014015
null
hep-ph hep-ex hep-lat nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The one-boson exchange potential model for $\Lambda_cN$ is constructed and the possibility of $\Lambda_cN$ bound states is examined. We consider an effective Lagrangian for the charmed baryons, $\Lambda_c$, $\Sigma_c$, and $\Sigma_c^*$, reflecting the heavy quark symmetry, chiral symmetry, and hidden local symmetry. ...
[ { "created": "Wed, 23 Mar 2011 20:34:56 GMT", "version": "v1" }, { "created": "Sat, 14 Jan 2012 13:15:24 GMT", "version": "v2" } ]
2012-01-17
[ [ "Liu", "Yan-Rui", "" ], [ "Oka", "Makoto", "" ] ]
The one-boson exchange potential model for $\Lambda_cN$ is constructed and the possibility of $\Lambda_cN$ bound states is examined. We consider an effective Lagrangian for the charmed baryons, $\Lambda_c$, $\Sigma_c$, and $\Sigma_c^*$, reflecting the heavy quark symmetry, chiral symmetry, and hidden local symmetry. We...
1208.3065
C\'edric Lorc\'e
Cedric Lorce (Orsay, IPN and Orsay, LPT), Barbara Pasquini (Pavia U. and INFN, Pavia)
Wigner distributions and quark orbital angular momentum
8 pages, 2 figures, 1 table, contribution to the proceedings of the QCD Evolution workshop 2012, May 14-17, JLab
null
10.1142/S2010194512009129
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the quark phase-space or Wigner distributions of the nucleon which combine in a single picture all the information contained in the generalized parton distributions and the transverse-momentum dependent parton distributions. In particular, we present results for the distribution of unpolarized quarks in a ...
[ { "created": "Wed, 15 Aug 2012 09:17:25 GMT", "version": "v1" } ]
2015-06-11
[ [ "Lorce", "Cedric", "", "Orsay, IPN and Orsay, LPT" ], [ "Pasquini", "Barbara", "", "Pavia U.\n and INFN, Pavia" ] ]
We discuss the quark phase-space or Wigner distributions of the nucleon which combine in a single picture all the information contained in the generalized parton distributions and the transverse-momentum dependent parton distributions. In particular, we present results for the distribution of unpolarized quarks in a lo...
1004.4819
Rosti Konoplich
J. DiBello, R. Konoplich, N. Lavini, and T. St.Laurent
Endpoints of invariant mass distribution in SUSY particle decays into massive particles
8 pages, 4 figures, 4 references added
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Kinematic limits on an invariant mass distribution of bc-pairs for a three-step decay chain A -> bB -> bcC involving all massive particles are found. It is shown that an application of these limits to a stop quark production at the LHC could reduce significantly Standard Model background contribution.
[ { "created": "Tue, 27 Apr 2010 14:39:23 GMT", "version": "v1" }, { "created": "Mon, 10 May 2010 04:29:18 GMT", "version": "v2" } ]
2010-05-11
[ [ "DiBello", "J.", "" ], [ "Konoplich", "R.", "" ], [ "Lavini", "N.", "" ], [ "Laurent", "T. St.", "" ] ]
Kinematic limits on an invariant mass distribution of bc-pairs for a three-step decay chain A -> bB -> bcC involving all massive particles are found. It is shown that an application of these limits to a stop quark production at the LHC could reduce significantly Standard Model background contribution.
1307.2873
Alessandro Pilloni
A. Esposito, M. Papinutto, A. Pilloni, A.D. Polosa, N. Tantalo
Doubly Charmed Tetraquarks in B_c and Xi_bc Decays
12 pages, 8 figures. Comments and references added. Version to appear in Phys.Rev.D
Phys. Rev. D 88, 054029 (2013)
10.1103/PhysRevD.88.054029
null
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The phenomenology of the so-called X, Y and Z hadronic resonances is hard to reconcile with standard charmonium or bottomonium interpretations. It has been suggested that some of these new hadrons can possibly be described as tightly bound tetraquark states and/or as loosely bound two-meson molecules. In the present ...
[ { "created": "Wed, 10 Jul 2013 18:28:32 GMT", "version": "v1" }, { "created": "Thu, 19 Sep 2013 08:54:27 GMT", "version": "v2" } ]
2013-10-30
[ [ "Esposito", "A.", "" ], [ "Papinutto", "M.", "" ], [ "Pilloni", "A.", "" ], [ "Polosa", "A. D.", "" ], [ "Tantalo", "N.", "" ] ]
The phenomenology of the so-called X, Y and Z hadronic resonances is hard to reconcile with standard charmonium or bottomonium interpretations. It has been suggested that some of these new hadrons can possibly be described as tightly bound tetraquark states and/or as loosely bound two-meson molecules. In the present pa...
hep-ph/9801407
Tao Han
Marcel Demarteau and Tao Han
Higgs Boson and Z Physics at the First Muon Collider
Working group summary (17 pages, 8 figs), to appear in the Proceedings of ``Workshop on the Physics at the First Muon Collider and at the Front End of a Muon Collider''
AIPConf.Proc.435:177-192,1998
10.1063/1.56200
Fermilab-Conf-98/030, MADPH-98-1037
hep-ph hep-ex
null
The potential for the Higgs boson and Z-pole physics at the first muon collider is summarized, based on the discussions at the ``Workshop on the Physics at the First Muon Collider and at the Front End of a Muon Collider'' .
[ { "created": "Sat, 24 Jan 1998 17:51:40 GMT", "version": "v1" } ]
2009-10-31
[ [ "Demarteau", "Marcel", "" ], [ "Han", "Tao", "" ] ]
The potential for the Higgs boson and Z-pole physics at the first muon collider is summarized, based on the discussions at the ``Workshop on the Physics at the First Muon Collider and at the Front End of a Muon Collider'' .
hep-ph/0308205
Shi-Lin Zhu
Chong-Shou Gao and Shi-Lin Zhu
Understanding the Possible Proton Antiproton Bound State Observed by BES Collaboration
null
Commun.Theor.Phys.42:844,2004
10.1088/0253-6102/42/6/844
null
hep-ph hep-ex nucl-ex nucl-th
null
We comment on the quantum numbers and decay channels of the possible proton antiproton bound state observed by BES Collaboration. Based on the general symmetry consideration and available experimental information, we conclude that the quantum number of this state is very likely to be $J^{PC}=0^{-+}, I^G=0^+$, which c...
[ { "created": "Wed, 20 Aug 2003 11:59:25 GMT", "version": "v1" }, { "created": "Sun, 31 Aug 2003 04:45:50 GMT", "version": "v2" } ]
2018-01-17
[ [ "Gao", "Chong-Shou", "" ], [ "Zhu", "Shi-Lin", "" ] ]
We comment on the quantum numbers and decay channels of the possible proton antiproton bound state observed by BES Collaboration. Based on the general symmetry consideration and available experimental information, we conclude that the quantum number of this state is very likely to be $J^{PC}=0^{-+}, I^G=0^+$, which can...
hep-ph/0312092
Stephen P. Martin
Stephen P. Martin
Two-loop scalar self-energies in a general renormalizable theory at leading order in gauge couplings
26 pages, 4 figures, revtex4, axodraw.sty. Version 2: sentence after eq. (A.13) corrected, references added. Version 3: typos in eqs. (5.17), (5.20), (5.21), (5.32) are corrected. Also, the MSbar versions of eqs. (5.32) and (5.33) are now included
Phys.Rev. D70 (2004) 016005
10.1103/PhysRevD.70.016005
null
hep-ph
null
I present results for the two-loop self-energy functions for scalars in a general renormalizable field theory, using mass-independent renormalization schemes based on dimensional regularization and dimensional reduction. The results are given in terms of a minimal set of loop-integral basis functions, which are readi...
[ { "created": "Mon, 8 Dec 2003 19:33:39 GMT", "version": "v1" }, { "created": "Fri, 23 Jan 2004 16:18:44 GMT", "version": "v2" }, { "created": "Wed, 14 Apr 2004 22:03:19 GMT", "version": "v3" } ]
2009-11-10
[ [ "Martin", "Stephen P.", "" ] ]
I present results for the two-loop self-energy functions for scalars in a general renormalizable field theory, using mass-independent renormalization schemes based on dimensional regularization and dimensional reduction. The results are given in terms of a minimal set of loop-integral basis functions, which are readily...
1112.4894
Lei Guo
Bai Yu-Ming, Guo Lei, Li Xiao-Zhou, Ma Wen-Gan, and Zhang Ren-You
Revisiting the large extra dimension effects on $W$-pair production at the LHC in NLO QCD
25 pages, 14 figures
Phys. Rev. D85(2012) 016008
10.1103/PhysRevD.85.016008
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the framework of the large extra dimensions (LED) model, we investigate the effects induced by the Kaluza-Klein (KK) gravitons up to the QCD next-to-leading order (NLO) on the $W$-pair production followed by a subsequential $W$-decay at the CERN LHC. We depict the regions in the $\mathcal{L}-M_{S}$ parameter space...
[ { "created": "Wed, 21 Dec 2011 00:38:58 GMT", "version": "v1" }, { "created": "Tue, 14 Feb 2012 02:39:08 GMT", "version": "v2" } ]
2015-06-03
[ [ "Yu-Ming", "Bai", "" ], [ "Lei", "Guo", "" ], [ "Xiao-Zhou", "Li", "" ], [ "Wen-Gan", "Ma", "" ], [ "Ren-You", "Zhang", "" ] ]
In the framework of the large extra dimensions (LED) model, we investigate the effects induced by the Kaluza-Klein (KK) gravitons up to the QCD next-to-leading order (NLO) on the $W$-pair production followed by a subsequential $W$-decay at the CERN LHC. We depict the regions in the $\mathcal{L}-M_{S}$ parameter space w...
1206.5974
Alan Chodos
Alan Chodos
Light Cone Reflection and the Spectrum of Neutrinos
8 pages, no figures; references added
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We extend the treatment of neutrinos within the context of SIM(2) Very Special Relativity (VSR) by adding a new discrete symmetry that we call Light Cone Reflection (LCR). We construct a Lagrangian that exhibits both VSR and LCR symmetry, and find that the spectrum involves two neutrinos, one tachyonic and the other ...
[ { "created": "Tue, 26 Jun 2012 12:53:17 GMT", "version": "v1" }, { "created": "Tue, 24 Jul 2012 22:18:26 GMT", "version": "v2" } ]
2012-07-26
[ [ "Chodos", "Alan", "" ] ]
We extend the treatment of neutrinos within the context of SIM(2) Very Special Relativity (VSR) by adding a new discrete symmetry that we call Light Cone Reflection (LCR). We construct a Lagrangian that exhibits both VSR and LCR symmetry, and find that the spectrum involves two neutrinos, one tachyonic and the other no...
hep-ph/0508206
Damien George
Damien P. George, Raymond R. Volkas
Stability of domain walls coupled to Abelian gauge fields
9 pages, 9 figures
Phys.Rev. D72 (2005) 105011
10.1103/PhysRevD.72.105011
null
hep-ph hep-th
null
Rozowsky, Volkas and Wali recently found interesting numerical solutions to the field equations for a gauged U1xU1 scalar field model. Their solutions describe a reflection-symmetric domain wall with scalar fields and coupled gauge configurations that interpolate between constant magnetic fields on one side of the wa...
[ { "created": "Fri, 19 Aug 2005 03:36:05 GMT", "version": "v1" } ]
2009-11-11
[ [ "George", "Damien P.", "" ], [ "Volkas", "Raymond R.", "" ] ]
Rozowsky, Volkas and Wali recently found interesting numerical solutions to the field equations for a gauged U1xU1 scalar field model. Their solutions describe a reflection-symmetric domain wall with scalar fields and coupled gauge configurations that interpolate between constant magnetic fields on one side of the wall...
hep-ph/9804284
Oleg Teryaev
B. Pire, J. Soffer, O. Teryaev
Positivity Constraints for off-Forward Parton Distributions
LaTeX, 10 pages; The extended discussion for various definitions
Eur.Phys.J.C8:103-106,1999
10.1007/s100529901063
null
hep-ph nucl-th
null
Off-Forward Parton Distributions (OFPD's) are new hadronic objects which may be measured in various exclusive reactions. We derive non-trivial positivity constraints for them that should allow to get extra restrictions for model inputs.
[ { "created": "Tue, 14 Apr 1998 14:55:31 GMT", "version": "v1" }, { "created": "Wed, 29 Apr 1998 13:37:08 GMT", "version": "v2" }, { "created": "Wed, 17 Jun 1998 14:53:41 GMT", "version": "v3" }, { "created": "Thu, 24 Sep 1998 16:02:22 GMT", "version": "v4" } ]
2011-09-13
[ [ "Pire", "B.", "" ], [ "Soffer", "J.", "" ], [ "Teryaev", "O.", "" ] ]
Off-Forward Parton Distributions (OFPD's) are new hadronic objects which may be measured in various exclusive reactions. We derive non-trivial positivity constraints for them that should allow to get extra restrictions for model inputs.
1006.5578
Alexey Gladyshev
A. V. Gladyshev and R. S. Parpalak (JINR)
R-Parity Violation and Supersymmetric Higgs Masses
8 pages, 2 Postscript figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the supersymmetric extension of the Standard Model with neutrino Yukawa interactions and R-parity violation. We found that R-parity breaking term \lambda \nu H_u H_d leads to an additional F-type contribution to the Higgs scalar potential, and thus to the masses of supersymmetric Higgs bosons. The most in...
[ { "created": "Tue, 29 Jun 2010 11:55:48 GMT", "version": "v1" } ]
2010-06-30
[ [ "Gladyshev", "A. V.", "", "JINR" ], [ "Parpalak", "R. S.", "", "JINR" ] ]
We consider the supersymmetric extension of the Standard Model with neutrino Yukawa interactions and R-parity violation. We found that R-parity breaking term \lambda \nu H_u H_d leads to an additional F-type contribution to the Higgs scalar potential, and thus to the masses of supersymmetric Higgs bosons. The most inte...
hep-ph/0507211
Daniel Gr\"unewald
H.J. Pirner
QCD - NLC
10 pages, Talk given at Three Days of Hadronic Physics (HLPR04): Joint Meeting Heidelberg-Liege-Paris-Rostock, Liege, Belgium, 16-18 Dec 2004. Published in AIP Conf.Proc.775:252,2005
null
10.1063/1.1961062
null
hep-ph
null
We give a status report of our current theoretical work on QCD near the light-cone.
[ { "created": "Mon, 18 Jul 2005 14:43:58 GMT", "version": "v1" } ]
2009-11-11
[ [ "Pirner", "H. J.", "" ] ]
We give a status report of our current theoretical work on QCD near the light-cone.
1710.11396
Matthew Talia Mr
Neil D. Barrie, Archil Kobakhidze, Shelley Liang, Matthew Talia, Lei Wu
Exotic Lepton Searches via Bound State Production at the LHC
9 pages, 3 figures, Updated to match PLB
null
10.1016/j.physletb.2018.03.087
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Heavy long-lived multi-charged leptons (MCLs) are predicted by various new physics models. These hypothetical MCLs can form bound states, due to their high electric charges and long life times. In this work, we propose a novel strategy of searching for MCLs through their bound state productions and decays. By utilizi...
[ { "created": "Tue, 31 Oct 2017 10:16:43 GMT", "version": "v1" }, { "created": "Fri, 20 Apr 2018 12:33:05 GMT", "version": "v2" } ]
2018-04-23
[ [ "Barrie", "Neil D.", "" ], [ "Kobakhidze", "Archil", "" ], [ "Liang", "Shelley", "" ], [ "Talia", "Matthew", "" ], [ "Wu", "Lei", "" ] ]
Heavy long-lived multi-charged leptons (MCLs) are predicted by various new physics models. These hypothetical MCLs can form bound states, due to their high electric charges and long life times. In this work, we propose a novel strategy of searching for MCLs through their bound state productions and decays. By utilizing...
hep-ph/0508309
Cecilia Tarantino
C. Tarantino
B-Meson Mixing and Lifetimes
5 pages, 1 table, 3 figures, talk given at Beauty 2005 (Assisi, June 20-24, 2005)
Nucl.Phys.Proc.Suppl.156:33-37,2006
10.1016/j.nuclphysbps.2006.02.119
null
hep-ph hep-lat
null
$B_d$ and $B_s$ meson systems play a fundamental role to test and improve our understanding of Standard Model flavor dynamics. The mixing parameters $\Delta m_{d,s}$ represent important constraints in the unitarity triangle analysis. Their theoretical estimates require non-perturbative calculations of B-meson decay c...
[ { "created": "Tue, 30 Aug 2005 14:35:18 GMT", "version": "v1" }, { "created": "Thu, 1 Sep 2005 11:24:13 GMT", "version": "v2" } ]
2008-11-26
[ [ "Tarantino", "C.", "" ] ]
$B_d$ and $B_s$ meson systems play a fundamental role to test and improve our understanding of Standard Model flavor dynamics. The mixing parameters $\Delta m_{d,s}$ represent important constraints in the unitarity triangle analysis. Their theoretical estimates require non-perturbative calculations of B-meson decay con...
1606.08956
Prashant Srivastava Kumar
O. S. K. Chaturvedi, P. K. Srivastava, Ashwini Kumar, B. K. Singh
Multiplicity and Pseudorapidity distributions of charged particles in asymmetric and deformed nuclear collisions in a Wounded Quark Model
25 pages, 15 figures, 3 tables
Eur. Phys. J. Plus (2016) 131: 438
10.1140/epjp/i2016-16438-2
null
hep-ph nucl-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The charged particle multiplicity ($n_{ch}$) and pseudorapidity density $(dn_{ch}/d\eta)$ are key observables to characterize the properties of matter created in heavy ion collisions. The dependence of these observables on collision energy and the collision geometry are a key tool to understand the underlying particl...
[ { "created": "Wed, 29 Jun 2016 05:28:49 GMT", "version": "v1" }, { "created": "Tue, 15 Nov 2016 07:25:25 GMT", "version": "v2" } ]
2016-12-30
[ [ "Chaturvedi", "O. S. K.", "" ], [ "Srivastava", "P. K.", "" ], [ "Kumar", "Ashwini", "" ], [ "Singh", "B. K.", "" ] ]
The charged particle multiplicity ($n_{ch}$) and pseudorapidity density $(dn_{ch}/d\eta)$ are key observables to characterize the properties of matter created in heavy ion collisions. The dependence of these observables on collision energy and the collision geometry are a key tool to understand the underlying particle ...
2107.13297
Henri Sieber
D. V. Kirpichnikov and H. Sieber and L. Molina Bueno and P. Crivelli and M. M. Kirsanov
Probing Hidden Sectors with a muon beam: Total and differential cross-sections for vector boson production in muon bremsstrahlung
null
null
10.1103/PhysRevD.104.076012
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
Vector bosons, such as Dark Photon $A'$ or $Z'$, can couple to muons and be produced in the bremsstrahlung reaction $\mu^- + N \rightarrow \mu^- + N + A'(Z')$. Their possible subsequent invisible decay can be detected in fixed target experiments through missing energy/momentum signature. In such experiments, not only...
[ { "created": "Wed, 28 Jul 2021 11:44:03 GMT", "version": "v1" }, { "created": "Thu, 5 Aug 2021 13:25:07 GMT", "version": "v2" } ]
2021-10-27
[ [ "Kirpichnikov", "D. V.", "" ], [ "Sieber", "H.", "" ], [ "Bueno", "L. Molina", "" ], [ "Crivelli", "P.", "" ], [ "Kirsanov", "M. M.", "" ] ]
Vector bosons, such as Dark Photon $A'$ or $Z'$, can couple to muons and be produced in the bremsstrahlung reaction $\mu^- + N \rightarrow \mu^- + N + A'(Z')$. Their possible subsequent invisible decay can be detected in fixed target experiments through missing energy/momentum signature. In such experiments, not only i...
2201.02637
Jeffrey Berryman
Jeffrey M. Berryman, Susan Gardner and Mohammadreza Zakeri
Neutron Stars with Baryon Number Violation, Probing Dark Sectors
81 pages, 16 figures. Invited contribution to special issue of Symmetry, "The Neutron Star-Dark Matter Connection: Bridge Through the Baryon Symmetry Violation." Updated to reflect accepted version
Symmetry 14 (2022) 518
10.3390/sym14030518
INT-PUB-22-001, N3AS-22-004
hep-ph astro-ph.CO astro-ph.HE gr-qc nucl-th
http://creativecommons.org/licenses/by/4.0/
The neutron lifetime anomaly has been used to motivate the introduction of new physics with hidden-sector particles coupled to baryon number, and on which neutron stars provide powerful constraints. Although the neutron lifetime anomaly may eventually prove to be of mundane origin, we use it as motivation for a broad...
[ { "created": "Fri, 7 Jan 2022 19:00:04 GMT", "version": "v1" }, { "created": "Fri, 8 Apr 2022 18:10:24 GMT", "version": "v2" } ]
2022-04-12
[ [ "Berryman", "Jeffrey M.", "" ], [ "Gardner", "Susan", "" ], [ "Zakeri", "Mohammadreza", "" ] ]
The neutron lifetime anomaly has been used to motivate the introduction of new physics with hidden-sector particles coupled to baryon number, and on which neutron stars provide powerful constraints. Although the neutron lifetime anomaly may eventually prove to be of mundane origin, we use it as motivation for a broader...
1806.06852
Lev Fil'kov
L.V. Fil'kov, V.L. Kashevarov
Dipole Polarizabilities of $\pi^{\pm}$-Mesons
6 pages, 2 figures. XXXI International Workshop on High Energy Physics: Critical Points in the Modern Particle Physics. arXiv admin note: substantial text overlap with arXiv:1703.01233
Int. J. Mod. Phys. Conf. Ser., Vol. 47 (2018) 1860092
10.1142/S2010194518600923
Conference: C17-07-05.1
hep-ph hep-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The main experimental works, where dipole polarizabilities of charged pions have been determined, are considered. Possible reasons for the differences between the experimental data are discussed. In particular, it is shown that the account of the $\sigma$-meson gives a significant correction to the value of the polar...
[ { "created": "Sat, 16 Jun 2018 15:48:27 GMT", "version": "v1" } ]
2018-06-20
[ [ "Fil'kov", "L. V.", "" ], [ "Kashevarov", "V. L.", "" ] ]
The main experimental works, where dipole polarizabilities of charged pions have been determined, are considered. Possible reasons for the differences between the experimental data are discussed. In particular, it is shown that the account of the $\sigma$-meson gives a significant correction to the value of the polariz...
0709.3249
Florian Schwennsen
J. Bartels (Hamburg U.), A. Sabio Vera (CERN), F. Schwennsen (Hamburg U.)
NLO jet production in k_T factorization
7 pages, 1 figure, prepared for the 12th International Conference on Elastic and Diffractive Scattering, DESY, Hamburg, 21-25 May 2007
null
null
null
hep-ph
null
We discuss the inclusive production of jets in the central region of rapidity in the context of k_T-factorization at next-to-leading order (NLO). Calculations are performed in the Regge limit making use of the NLO BFKL results. We introduce a jet cone definition and carry out a proper phase--space separation into mul...
[ { "created": "Thu, 20 Sep 2007 14:49:46 GMT", "version": "v1" } ]
2007-09-21
[ [ "Bartels", "J.", "", "Hamburg U." ], [ "Vera", "A. Sabio", "", "CERN" ], [ "Schwennsen", "F.", "", "Hamburg\n U." ] ]
We discuss the inclusive production of jets in the central region of rapidity in the context of k_T-factorization at next-to-leading order (NLO). Calculations are performed in the Regge limit making use of the NLO BFKL results. We introduce a jet cone definition and carry out a proper phase--space separation into multi...
hep-ph/0105247
Oliver
A. Le Yaouanc, L. Oliver, O. P\`ene and J.-C. Raynal
Uraltsev Sum Rule in Bakamjian-Thomas Quark Models
16 pages, Latex
Phys.Lett.B520:25-32,2001
10.1016/S0370-2693(01)00943-1
LPT Orsay/01-20
hep-ph
null
We show that the sum rule recently proved by Uraltsev in the heavy quark limit of QCD holds in relativistic quark models \`a la Bakamjian and Thomas, that were already shown to satisfy Isgur-Wise scaling and Bjorken sum rule. This new sum rule provides a {\it rationale} for the lower bound of the slope of the elastic...
[ { "created": "Wed, 23 May 2001 15:16:25 GMT", "version": "v1" }, { "created": "Tue, 29 May 2001 16:36:08 GMT", "version": "v2" } ]
2014-11-17
[ [ "Yaouanc", "A. Le", "" ], [ "Oliver", "L.", "" ], [ "Pène", "O.", "" ], [ "Raynal", "J. -C.", "" ] ]
We show that the sum rule recently proved by Uraltsev in the heavy quark limit of QCD holds in relativistic quark models \`a la Bakamjian and Thomas, that were already shown to satisfy Isgur-Wise scaling and Bjorken sum rule. This new sum rule provides a {\it rationale} for the lower bound of the slope of the elastic I...
1505.00549
Alka Upadhyay
Meenakshi Batra, Alka Upadhyay
Strong Decay widths and Coupling Constant of Recent Charm Meson States
13 pages, 3 tables and 6 plots, 2015(EPJC: Communicated)
Eur. Phys. J. C (2015) 75:319
10.1140/epjc/s10052-015-3516-4
null
hep-ph
http://creativecommons.org/licenses/by/3.0/
Using an effective Lagrangian approach based on heavy quark symmetry and chiral dynamics, we explore the strong decay widths and branching ratios of various resonances and suggest their JP find the coupling constants involved in the strong decays through pseudoscalar mesons. The present work also discusses about the ...
[ { "created": "Mon, 4 May 2015 08:16:47 GMT", "version": "v1" } ]
2015-08-19
[ [ "Batra", "Meenakshi", "" ], [ "Upadhyay", "Alka", "" ] ]
Using an effective Lagrangian approach based on heavy quark symmetry and chiral dynamics, we explore the strong decay widths and branching ratios of various resonances and suggest their JP find the coupling constants involved in the strong decays through pseudoscalar mesons. The present work also discusses about the po...
hep-ph/9511273
Mohamed Benmerrouche
M. Benmerrouche, G. Orlandini, T.G. Steele
Lower Bound on the Pion Polarizability from QCD Sum Rules
9 pages, RevTeX, 3 figures added as uu-encoded g-zipped tarred eps files, to appear in Phys. Lett B
Phys.Lett.B366:354-359,1996
10.1016/0370-2693(95)01386-5
SAL-TH-95-05
hep-ph
null
Making use of QCD sum rules a lower bound is found which relates the electromagnetic polarizability $\alpha_{_E}$ and mean-square radius $\langle r_\pi^2\rangle$ of charged pions through the intrinsic polarizability $\tilde\alpha_{_E}= \alpha_{_E}-\alpha\langle r_\pi^2\rangle/(3M_\pi)$. We find that if present constr...
[ { "created": "Wed, 8 Nov 1995 21:03:33 GMT", "version": "v1" } ]
2011-07-19
[ [ "Benmerrouche", "M.", "" ], [ "Orlandini", "G.", "" ], [ "Steele", "T. G.", "" ] ]
Making use of QCD sum rules a lower bound is found which relates the electromagnetic polarizability $\alpha_{_E}$ and mean-square radius $\langle r_\pi^2\rangle$ of charged pions through the intrinsic polarizability $\tilde\alpha_{_E}= \alpha_{_E}-\alpha\langle r_\pi^2\rangle/(3M_\pi)$. We find that if present constrai...
hep-ph/9704392
Defu Hou
Hou Defu and U. Heinz(Uni.Regensburg)
Three-Point Spectral Functions in $\phi^3_6$ Theory at Finite Temperature
Revtex, 24 pages,one figure,correction in theory area in Sec.3
Eur.Phys.J.C4:129-137,1998
10.1007/s100520050192
null
hep-ph hep-th
null
We derive a set of relations among the thermal components of the 3-point function and its spectral representations at finite temperature in the real-time formalism. We then use these to explicitly calculate the 3-point spectral densities for $\phi^3_6$ theory and relate the result to the case of hot QCD.
[ { "created": "Thu, 24 Apr 1997 09:10:00 GMT", "version": "v1" }, { "created": "Mon, 7 Jul 1997 16:02:44 GMT", "version": "v2" } ]
2016-09-06
[ [ "Defu", "Hou", "", "Uni.Regensburg" ], [ "Heinz", "U.", "", "Uni.Regensburg" ] ]
We derive a set of relations among the thermal components of the 3-point function and its spectral representations at finite temperature in the real-time formalism. We then use these to explicitly calculate the 3-point spectral densities for $\phi^3_6$ theory and relate the result to the case of hot QCD.
hep-ph/0112127
Cai-Dian Lu
Cai-Dian Lu (IHEP, Beijing)
Calculation of pure annihilation type decay $B^+ \to D_s^+ \phi$
13 pages, including 1 figure, revtex4
Eur.Phys.J.C24:121-126,2002
10.1007/s100520200929
null
hep-ph hep-ex
null
The rare decay $B^+ \to D_s^+ \phi$ can occur only via annihilation type diagrams in the standard model. We calculate this decay in perturbative QCD approach with Sudakov resummation. We found that the branching ratio of $B^+ \to D_s^+ \phi$ is of order $10^{-7}$ which may be measured in the near future by KEK and SL...
[ { "created": "Sun, 9 Dec 2001 09:32:56 GMT", "version": "v1" } ]
2011-09-13
[ [ "Lu", "Cai-Dian", "", "IHEP, Beijing" ] ]
The rare decay $B^+ \to D_s^+ \phi$ can occur only via annihilation type diagrams in the standard model. We calculate this decay in perturbative QCD approach with Sudakov resummation. We found that the branching ratio of $B^+ \to D_s^+ \phi$ is of order $10^{-7}$ which may be measured in the near future by KEK and SLAC...
1802.07269
Hyungjin Kim
Kiwoon Choi, Hyungjin Kim, Toyokazu Sekiguchi
Late-time magnetogenesis driven by ALP dark matter and dark photon
6 pages, 2 figures; discussions rearranged, minor numerical errors fixed, conclusion unchanged; discussion improved, accepted for publication in PRL
Phys. Rev. Lett. 121, 031102 (2018)
10.1103/PhysRevLett.121.031102
CTPU-PTC-18-04, RESCEU-4/18
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a mechanism generating primordial magnetic fields after the $e^+e^-$ annihilations. Our mechanism involves an ultra-light axion-like particle (ALP) which constitutes the dark matter, and a dark $U(1)_X$ gauge boson introduced to bypass the obstacle placed by the conductivity of cosmic plasma. In our scheme...
[ { "created": "Tue, 20 Feb 2018 19:00:03 GMT", "version": "v1" }, { "created": "Wed, 25 Apr 2018 18:54:19 GMT", "version": "v2" }, { "created": "Mon, 9 Jul 2018 16:59:13 GMT", "version": "v3" } ]
2018-07-25
[ [ "Choi", "Kiwoon", "" ], [ "Kim", "Hyungjin", "" ], [ "Sekiguchi", "Toyokazu", "" ] ]
We propose a mechanism generating primordial magnetic fields after the $e^+e^-$ annihilations. Our mechanism involves an ultra-light axion-like particle (ALP) which constitutes the dark matter, and a dark $U(1)_X$ gauge boson introduced to bypass the obstacle placed by the conductivity of cosmic plasma. In our scheme, ...
2009.12552
Piotr Zenczykowski
Piotr Zenczykowski
Revisiting Weak Radiative Decays of Hyperons
12 pages
null
10.5506/APhysPolB.51.2111
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Triggered by experimentally driven renewed interest in hyperon properties we address the subject of weak radiative hyperon decays (WRHD). We start with the issue of Hara's theorem and briefly discuss the question of its possible evasion. Then, we give a short review of the story of vector-meson-dominance (VMD) approa...
[ { "created": "Sat, 26 Sep 2020 09:41:38 GMT", "version": "v1" } ]
2021-02-03
[ [ "Zenczykowski", "Piotr", "" ] ]
Triggered by experimentally driven renewed interest in hyperon properties we address the subject of weak radiative hyperon decays (WRHD). We start with the issue of Hara's theorem and briefly discuss the question of its possible evasion. Then, we give a short review of the story of vector-meson-dominance (VMD) approach...
hep-ph/0512254
Alexander Prygarin
E. Gotsman, H. Kowalski, E. Levin, U. Maor, A. Prygarin
Survival probability for exclusive central diffractive production of colorless states at the LHC
33 pages, 26 figures
Eur.Phys.J.C47:655-669,2006
10.1140/epjc/s2006-02600-1
TAUP-2816-05
hep-ph
null
In this paper we discuss the survival probability for exclusive central diffractive production of a colorless small size system at the LHC. This process has a clear signature of two large rapidity gaps. Using the eikonal approach for the description of soft interactions, we predict the value of the survival probabili...
[ { "created": "Tue, 20 Dec 2005 13:49:19 GMT", "version": "v1" }, { "created": "Mon, 20 Mar 2006 08:22:31 GMT", "version": "v2" }, { "created": "Sat, 3 Jun 2006 12:02:09 GMT", "version": "v3" } ]
2009-01-07
[ [ "Gotsman", "E.", "" ], [ "Kowalski", "H.", "" ], [ "Levin", "E.", "" ], [ "Maor", "U.", "" ], [ "Prygarin", "A.", "" ] ]
In this paper we discuss the survival probability for exclusive central diffractive production of a colorless small size system at the LHC. This process has a clear signature of two large rapidity gaps. Using the eikonal approach for the description of soft interactions, we predict the value of the survival probability...
1411.6783
Mahatsab Mandal
Biswarup Paul, Mahatsab Mandal, Pradip Roy, Sukalyan Chattapadhyay
Systematic study of Charmonium production in pp collisions at the LHC energies
Small changes in summary and title, figures and references added
null
10.1088/0954-3899/42/6/065101
null
hep-ph hep-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We have performed a systematic study of $J/\psi$ and $\psi(2S)$ production in $p-p$ collisions at different LHC energies and at different rapidities using the leading order (LO) non-relativistic QCD (NRQCD) model of heavy quarkonium production. We have included the contributions from $\chi_{cJ}$ ($J$ = 0, 1, 2) and $...
[ { "created": "Tue, 25 Nov 2014 09:34:30 GMT", "version": "v1" }, { "created": "Mon, 1 Dec 2014 09:43:05 GMT", "version": "v2" }, { "created": "Tue, 30 Dec 2014 14:32:39 GMT", "version": "v3" } ]
2015-06-23
[ [ "Paul", "Biswarup", "" ], [ "Mandal", "Mahatsab", "" ], [ "Roy", "Pradip", "" ], [ "Chattapadhyay", "Sukalyan", "" ] ]
We have performed a systematic study of $J/\psi$ and $\psi(2S)$ production in $p-p$ collisions at different LHC energies and at different rapidities using the leading order (LO) non-relativistic QCD (NRQCD) model of heavy quarkonium production. We have included the contributions from $\chi_{cJ}$ ($J$ = 0, 1, 2) and $\p...
1605.03464
Andreas Krassnigg
T. Hilger and A. Krassnigg
Quasi-exotic open-flavor mesons
10 pages, 5 figures, 2 tables, revised version incorporating reviewer comments
Eur. Phys. J. A (2017) 53: 142
10.1140/epja/i2017-12330-6
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Meson states with exotic quantum numbers arise naturally in a covariant bound-state framework in QCD. We investigate the consequences of shifting quark masses such that the states are no longer restricted to certain C-parities, but only by J^P. Then, a priori, one can no longer distinguish exotic or conventional stat...
[ { "created": "Wed, 11 May 2016 14:47:59 GMT", "version": "v1" }, { "created": "Tue, 4 Oct 2016 10:41:26 GMT", "version": "v2" }, { "created": "Wed, 24 May 2017 02:54:04 GMT", "version": "v3" } ]
2017-06-29
[ [ "Hilger", "T.", "" ], [ "Krassnigg", "A.", "" ] ]
Meson states with exotic quantum numbers arise naturally in a covariant bound-state framework in QCD. We investigate the consequences of shifting quark masses such that the states are no longer restricted to certain C-parities, but only by J^P. Then, a priori, one can no longer distinguish exotic or conventional states...
2005.00503
Mrunal Prashant Korwar
Yang Bai, Mrunal Korwar, and Nicholas Orlofsky
Electroweak-Symmetric Dark Monopoles from Preheating
31 pages, 5 figures
null
10.1007/JHEP07(2020)167
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
If the dark sector contains 't Hooft-Polyakov monopoles and a small enough dark gauge coupling, dark monopoles could be a macroscopic dark matter candidate. Its Higgs-portal coupling to the Standard Model can modify the electroweak vacuum in the monopole interior. In the most striking cases, dark monopoles could even...
[ { "created": "Fri, 1 May 2020 17:16:50 GMT", "version": "v1" } ]
2020-08-26
[ [ "Bai", "Yang", "" ], [ "Korwar", "Mrunal", "" ], [ "Orlofsky", "Nicholas", "" ] ]
If the dark sector contains 't Hooft-Polyakov monopoles and a small enough dark gauge coupling, dark monopoles could be a macroscopic dark matter candidate. Its Higgs-portal coupling to the Standard Model can modify the electroweak vacuum in the monopole interior. In the most striking cases, dark monopoles could even c...
1906.04873
Hao Sun
Tichouk, Hao Sun and Xuan Luo
Photoproduction of $\rm J/\psi$ with forward hadron tagging in hadronic collisions
14pages, 8figs
Phys. Rev. D 99, 114026 (2019)
10.1103/PhysRevD.99.114026
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the photoproduction of $\rm J/\psi$ using the NRQCD formalism with forward hadron tagging at the Large Hadron Collider. We estimate the total cross sections and event rates with and without nuclear shadowing effects in high energy proton-proton, proton-nucleus and nucleus-nucleus collisions. Our results show...
[ { "created": "Wed, 12 Jun 2019 01:14:45 GMT", "version": "v1" } ]
2019-07-02
[ [ "Tichouk", "", "" ], [ "Sun", "Hao", "" ], [ "Luo", "Xuan", "" ] ]
We study the photoproduction of $\rm J/\psi$ using the NRQCD formalism with forward hadron tagging at the Large Hadron Collider. We estimate the total cross sections and event rates with and without nuclear shadowing effects in high energy proton-proton, proton-nucleus and nucleus-nucleus collisions. Our results show t...
2012.10997
Zbigniew Was
E. Richter-Was and Z. Was
Adequacy of Effective Born for electroweak effects and TauSpinner algorithms for LEP, Tevatron, HL-LHC and FCC simulated samples
30+1 pages, 9 figures, language improvements introduced
null
null
IFJPAN-IV-2020-10
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Matching and comparing measurements of past and future experiments calls for consistency checks of calculations used for their interpretation. New schemes of the field theory may optimize precision, but obscure comparisons with earlier results. Over years concepts of Improved Born, Effective Born, effective couplings...
[ { "created": "Sun, 20 Dec 2020 18:59:15 GMT", "version": "v1" }, { "created": "Sat, 13 Feb 2021 09:29:56 GMT", "version": "v2" } ]
2021-02-16
[ [ "Richter-Was", "E.", "" ], [ "Was", "Z.", "" ] ]
Matching and comparing measurements of past and future experiments calls for consistency checks of calculations used for their interpretation. New schemes of the field theory may optimize precision, but obscure comparisons with earlier results. Over years concepts of Improved Born, Effective Born, effective couplings, ...
2311.11857
Ye-Ling Zhou
Stephen F. King, George K. Leontaris, Ye-Ling Zhou
Flipped SU(5): unification, proton decay, fermion masses and gravitational waves
24 pages, 7 figures
JHEP 03 (2024) 006
10.1007/JHEP03(2024)006
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study supersymmetric (SUSY) flipped $SU(5)\times U(1)$ unification, focussing on its predictions for proton decay, fermion masses and gravitational waves. We performed a two-loop renormalisation group analysis and showed that the SUSY flipped $SU(5)$ model predicts a high GUT scale $M_{\rm GUT} > 10^{16}$ GeV. We ...
[ { "created": "Mon, 20 Nov 2023 15:52:08 GMT", "version": "v1" }, { "created": "Sat, 2 Mar 2024 09:30:06 GMT", "version": "v2" } ]
2024-03-05
[ [ "King", "Stephen F.", "" ], [ "Leontaris", "George K.", "" ], [ "Zhou", "Ye-Ling", "" ] ]
We study supersymmetric (SUSY) flipped $SU(5)\times U(1)$ unification, focussing on its predictions for proton decay, fermion masses and gravitational waves. We performed a two-loop renormalisation group analysis and showed that the SUSY flipped $SU(5)$ model predicts a high GUT scale $M_{\rm GUT} > 10^{16}$ GeV. We al...
1407.1782
Stefan Floerchinger
Stefan Floerchinger and Korinna C. Zapp
Hydrodynamics and Jets in Dialogue
18 pages, 9 figures
null
null
CERN-PH-TH/2014-126, MCNET-14-13
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Energy and momentum loss of jets in heavy ion collisions can affect the fluid dynamic evolution of the medium. We determine realistic event-by-event averages and correlation functions of the local energy-momentum transfer from hard particles to the soft sector using the jet-quenching Monte-Carlo code JEWEL combined w...
[ { "created": "Mon, 7 Jul 2014 17:38:41 GMT", "version": "v1" } ]
2014-07-08
[ [ "Floerchinger", "Stefan", "" ], [ "Zapp", "Korinna C.", "" ] ]
Energy and momentum loss of jets in heavy ion collisions can affect the fluid dynamic evolution of the medium. We determine realistic event-by-event averages and correlation functions of the local energy-momentum transfer from hard particles to the soft sector using the jet-quenching Monte-Carlo code JEWEL combined wit...
0807.4515
Federico Wagner M.Sc.
Daniel de Florian, Werner Vogelsang, Federico Wagner
Single-inclusive hadron production in transversely polarized p-p and pbar-p collisions with threshold resummation
17 pages, 6 figures
Phys.Rev.D78:074025,2008
10.1103/PhysRevD.78.074025
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the resummation of large logarithmic perturbative corrections to the partonic cross sections for single-inclusive high-p_T hadron production in collisions of transversely polarized hadrons. We perform the resummation to next-to-leading logarithmic accuracy. Phenomenological results are given for pbar-p...
[ { "created": "Mon, 28 Jul 2008 18:13:42 GMT", "version": "v1" } ]
2008-11-26
[ [ "de Florian", "Daniel", "" ], [ "Vogelsang", "Werner", "" ], [ "Wagner", "Federico", "" ] ]
We investigate the resummation of large logarithmic perturbative corrections to the partonic cross sections for single-inclusive high-p_T hadron production in collisions of transversely polarized hadrons. We perform the resummation to next-to-leading logarithmic accuracy. Phenomenological results are given for pbar-p c...
0802.1876
Roberto Pittau
Giovanni Ossola, Costas G. Papadopoulos, Roberto Pittau
On the Rational Terms of the one-loop amplitudes
14 pages, 3 figures, uses axodraw.sty
JHEP0805:004,2008
10.1088/1126-6708/2008/05/004
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The various sources of Rational Terms contributing to the one-loop amplitudes are critically discussed. We show that the terms originating from the generic (n-4)-dimensional structure of the numerator of the one-loop amplitude can be derived by using appropriate Feynman rules within a tree-like computation. For the t...
[ { "created": "Wed, 13 Feb 2008 17:57:47 GMT", "version": "v1" } ]
2008-11-26
[ [ "Ossola", "Giovanni", "" ], [ "Papadopoulos", "Costas G.", "" ], [ "Pittau", "Roberto", "" ] ]
The various sources of Rational Terms contributing to the one-loop amplitudes are critically discussed. We show that the terms originating from the generic (n-4)-dimensional structure of the numerator of the one-loop amplitude can be derived by using appropriate Feynman rules within a tree-like computation. For the ter...
hep-ph/9211216
Paul F. Mende
Benjamin Grinstein and Paul F. Mende
On Constraints for Heavy-Meson Form Factors
11 pp.+ 1 postscript figure, harvmac, SSCL-PP-167, BROWN-HET-882
Phys.Lett. B299 (1993) 127-132
10.1016/0370-2693(93)90893-M
null
hep-ph
null
We examine the recent work of de Rafael and Taron where model-independent bounds on the Isgur-Wise function are presented. We first argue that the bounds cannot hold in as much generality as implied. We show that the effects of resonances omitted in their discussion (such as heavy-heavy ``onium'' states below thresho...
[ { "created": "Fri, 6 Nov 1992 21:55:22 GMT", "version": "v1" } ]
2009-10-22
[ [ "Grinstein", "Benjamin", "" ], [ "Mende", "Paul F.", "" ] ]
We examine the recent work of de Rafael and Taron where model-independent bounds on the Isgur-Wise function are presented. We first argue that the bounds cannot hold in as much generality as implied. We show that the effects of resonances omitted in their discussion (such as heavy-heavy ``onium'' states below threshold...
hep-ph/9210230
Jonathan Bagger
Jonathan A. Bagger
Observing Electroweak Symmetry Breaking at the SSC
5 pages; JHU-TIPAC-920028; Talk given at the XXVI ICHEP, Dallas
null
10.1063/1.43427
null
hep-ph
null
In this talk we survey the SSC signals and backgrounds for the physics of electroweak symmetry breaking. We study the process $pp \rightarrow WWX$ and compute the rate for the ``gold-plated'' signals $W^\pm \rightarrow \ell^\pm \nu$ and $Z \rightarrow \ell^+\ell^-$ $(\ell = e,\mu)$ for a wide variety of models. We us...
[ { "created": "Tue, 13 Oct 1992 13:03:14 GMT", "version": "v1" }, { "created": "Fri, 20 Nov 1992 14:35:55 GMT", "version": "v2" } ]
2009-10-22
[ [ "Bagger", "Jonathan A.", "" ] ]
In this talk we survey the SSC signals and backgrounds for the physics of electroweak symmetry breaking. We study the process $pp \rightarrow WWX$ and compute the rate for the ``gold-plated'' signals $W^\pm \rightarrow \ell^\pm \nu$ and $Z \rightarrow \ell^+\ell^-$ $(\ell = e,\mu)$ for a wide variety of models. We use ...
1704.04407
Takaaki Nomura
Chuan-Hung Chen, Takaaki Nomura
$L_\mu -L_\tau$ gauge-boson production from lepton flavor violating $\tau$ decays at Belle II
23 pages, 7 figures, 4 tables, version to appear in Phys. Rev. D
Phys. Rev. D 96, 095023 (2017)
10.1103/PhysRevD.96.095023
KIAS-P17025
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
$L_\mu -L_\tau$ gauge boson ($Z'$) with a mass in the MeV to GeV region can resolve not only the muon $g-2$ excess, but also the gap in the high-energy cosmic neutrino spectrum at IceCube. It was recently proposed that such a light gauge boson can be detected during the Belle II experiment with a luminosity of 50 ab$...
[ { "created": "Fri, 14 Apr 2017 12:26:38 GMT", "version": "v1" }, { "created": "Sat, 18 Nov 2017 09:03:40 GMT", "version": "v2" } ]
2017-11-29
[ [ "Chen", "Chuan-Hung", "" ], [ "Nomura", "Takaaki", "" ] ]
$L_\mu -L_\tau$ gauge boson ($Z'$) with a mass in the MeV to GeV region can resolve not only the muon $g-2$ excess, but also the gap in the high-energy cosmic neutrino spectrum at IceCube. It was recently proposed that such a light gauge boson can be detected during the Belle II experiment with a luminosity of 50 ab$^{...
hep-ph/9706264
Nikolai P. Zotov
N.I. Starkov, N.P. Zotov
Diffractive photoproduction of meson pairs in the S\"oding model
7 pages, 7 figures, latex; Talk at DIS 97 Workshop (Chicago, 1997)
null
10.1063/1.53720
INP MSU preprint - 96 - 33/440 (revised version)
hep-ph
null
We consider the diffractive photoproduction of $\pi^+\pi^- , K^+K^- , D^+D^-$ meson pairs with high masses and transverse momenta in the framework of the S\"oding model. The total and differential cross sections are calculated for these processes. The role of the form factors is stressed.
[ { "created": "Thu, 5 Jun 1997 16:34:00 GMT", "version": "v1" } ]
2015-06-25
[ [ "Starkov", "N. I.", "" ], [ "Zotov", "N. P.", "" ] ]
We consider the diffractive photoproduction of $\pi^+\pi^- , K^+K^- , D^+D^-$ meson pairs with high masses and transverse momenta in the framework of the S\"oding model. The total and differential cross sections are calculated for these processes. The role of the form factors is stressed.
1210.0525
Randel Cotta
R. C. Cotta, J. L. Hewett, M. P. Le, T. G. Rizzo
Bounds on Dark Matter Interactions with Electroweak Gauge Bosons
45 pages, 26 figures
Phys. Rev. D 88, 116009 (2013)
10.1103/PhysRevD.88.116009
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate scenarios in which dark matter interacts with the Standard Model primarily through electroweak gauge bosons. We employ an effective field theory framework wherein the Standard Model and the dark matter particle are the only light states in order to derive model-independent bounds. Bounds on such intera...
[ { "created": "Mon, 1 Oct 2012 19:58:37 GMT", "version": "v1" } ]
2013-12-16
[ [ "Cotta", "R. C.", "" ], [ "Hewett", "J. L.", "" ], [ "Le", "M. P.", "" ], [ "Rizzo", "T. G.", "" ] ]
We investigate scenarios in which dark matter interacts with the Standard Model primarily through electroweak gauge bosons. We employ an effective field theory framework wherein the Standard Model and the dark matter particle are the only light states in order to derive model-independent bounds. Bounds on such interact...
hep-ph/9609485
Julian Phillips
A. Mehta, J. Phillips, B. Waugh
Future Diffractive Structure Function Measurements at HERA
15 pages, 7 figures. To appear in the proceedings "Future Physics at HERA", DESY, Hamburg, 1996
null
null
null
hep-ph hep-ex
null
The purposes and possibilities of future diffractive structure function measurements at HERA are presented. A review of the current range and accuracy of the measurement of $F_2^{D(3)}(\beta, x_p, Q^2)$ is presented and an estimate of the precision of future measurements is given. A feasibility study is performed on ...
[ { "created": "Thu, 26 Sep 1996 09:41:16 GMT", "version": "v1" } ]
2016-09-06
[ [ "Mehta", "A.", "" ], [ "Phillips", "J.", "" ], [ "Waugh", "B.", "" ] ]
The purposes and possibilities of future diffractive structure function measurements at HERA are presented. A review of the current range and accuracy of the measurement of $F_2^{D(3)}(\beta, x_p, Q^2)$ is presented and an estimate of the precision of future measurements is given. A feasibility study is performed on th...
1809.06123
{\L}ukasz Bibrzycki
{\L}. Bibrzycki, P. Byd\v{z}ovsk\'y, R. Kami\'nski, A. P. Szczepaniak
Meson resonances in forward-angle $\pi^+\pi^-$ photoproduction
6 pages, 7 figures
null
10.1016/j.physletb.2018.12.045
JLAB-THY-18-2808
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Assuming that the $\pi^+\pi^-$ photoproduction at forward angles and high energies is dominated by one pion exchange we calculate the $\pi^+\pi^-$ mass distributions for low partial waves. Predictions of the model agree well Assuming that the $\pi^+\pi^-$ photoproduction at forward angles and high energies is dominat...
[ { "created": "Mon, 17 Sep 2018 10:40:54 GMT", "version": "v1" }, { "created": "Thu, 27 Sep 2018 19:16:11 GMT", "version": "v2" }, { "created": "Sat, 19 Jan 2019 20:59:45 GMT", "version": "v3" } ]
2019-01-23
[ [ "Bibrzycki", "Ł.", "" ], [ "Bydžovský", "P.", "" ], [ "Kamiński", "R.", "" ], [ "Szczepaniak", "A. P.", "" ] ]
Assuming that the $\pi^+\pi^-$ photoproduction at forward angles and high energies is dominated by one pion exchange we calculate the $\pi^+\pi^-$ mass distributions for low partial waves. Predictions of the model agree well Assuming that the $\pi^+\pi^-$ photoproduction at forward angles and high energies is dominated...
2206.06894
Samina S. Masood
Samina Masood and Holly Mein
Comparative Study of Magnetic Moment of Leptons in Hot and Dense Media
This paper is 14 pages long and has 6 figures Accepted for publication in International Journal of Modern Physics. arXiv admin note: substantial text overlap with arXiv:1901.08569
null
10.1142/S0217751X22501202
null
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the magnetic moment of leptons in extremely hot universe and superdense media of stars at high temperatures. Anomalous magnetic moment of charged leptons is inversely proportional to its mass, whereas, the induced dipole moment of neutral leptons is directly proportional to their mass. Neutral massive point ...
[ { "created": "Tue, 14 Jun 2022 14:51:07 GMT", "version": "v1" } ]
2022-09-07
[ [ "Masood", "Samina", "" ], [ "Mein", "Holly", "" ] ]
We study the magnetic moment of leptons in extremely hot universe and superdense media of stars at high temperatures. Anomalous magnetic moment of charged leptons is inversely proportional to its mass, whereas, the induced dipole moment of neutral leptons is directly proportional to their mass. Neutral massive point pa...
1903.08933
Davide Meloni
Davide Meloni
Exploring New Physics from nu_tau events in OPERA
11 pages, 9 figures, paper accepted for publication in Physics Letters B
null
10.1016/j.physletb.2019.03.042
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze in details the impact of the $10$ $\nu_\tau$ events seen in the OPERA experiment in constraining the Non Standard Interaction parameter $\varepsilon_{\mu\tau}$ affecting neutrino propagation in matter and the allowed parameter space of models with one sterile neutrino of the $3+1$ type.
[ { "created": "Thu, 21 Mar 2019 11:43:16 GMT", "version": "v1" } ]
2019-05-01
[ [ "Meloni", "Davide", "" ] ]
We analyze in details the impact of the $10$ $\nu_\tau$ events seen in the OPERA experiment in constraining the Non Standard Interaction parameter $\varepsilon_{\mu\tau}$ affecting neutrino propagation in matter and the allowed parameter space of models with one sterile neutrino of the $3+1$ type.
0906.0984
James Jenkins Jr
James Jenkins and Terry Goldman (Los Alamos National Laboratory)
Some Radiative Corrections to Neutrino Scattering: I Neutral Currents
17 Pages, 7 .pdf Figures
Phys.Rev.D80:053005,2009
10.1103/PhysRevD.80.053005
LA-UR-09-02131
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
With the advent of high precision neutrino scattering experiments comes the need for improved radiative corrections. We present a phenomenological analysis of some contributions to the production of photons in neutrino neutral current scattering that are relevant to experiments subsuming the 1% level.
[ { "created": "Thu, 4 Jun 2009 20:01:54 GMT", "version": "v1" } ]
2009-09-24
[ [ "Jenkins", "James", "", "Los Alamos National Laboratory" ], [ "Goldman", "Terry", "", "Los Alamos National Laboratory" ] ]
With the advent of high precision neutrino scattering experiments comes the need for improved radiative corrections. We present a phenomenological analysis of some contributions to the production of photons in neutrino neutral current scattering that are relevant to experiments subsuming the 1% level.
2007.14709
Kaushal Thakkar
Kaushal Thakkar
Semileptonic Transition of $\Lambda_{b}$ Baryon
null
null
10.1140/epjc/s10052-020-08481-y
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The semileptonic transition of $\Lambda_b$ baryon is studied using the Hypercentral constituent quark model. The six-dimensional hyperradial $Schr\ddot{o}dinger$ equation is solved in the variational approach to get masses and wavefunctions of heavy baryons. The matrix elements of weak decay are written in terms of t...
[ { "created": "Wed, 29 Jul 2020 09:40:56 GMT", "version": "v1" }, { "created": "Mon, 31 Aug 2020 10:43:17 GMT", "version": "v2" } ]
2020-10-28
[ [ "Thakkar", "Kaushal", "" ] ]
The semileptonic transition of $\Lambda_b$ baryon is studied using the Hypercentral constituent quark model. The six-dimensional hyperradial $Schr\ddot{o}dinger$ equation is solved in the variational approach to get masses and wavefunctions of heavy baryons. The matrix elements of weak decay are written in terms of the...
hep-ph/9601227
Christoph Adam
Christoph Adam
The boson-boson bound state in the massive Schwinger model
8 pages, LATEX file, 7 figures, needed macro: psbox.tex
Z.Phys.C74:727-730,1997
10.1007/s002880050438
MP 96/01
hep-ph hep-th
null
We use (fermion) mass perturbation theory for the massive Schwinger model to compute the boson-boson bound state mass in lowest order. For small fermion mass the lowest possible Fock state turns out to give the main contribution and leads to a second order result for the bound state mass.
[ { "created": "Mon, 8 Jan 1996 16:17:36 GMT", "version": "v1" } ]
2009-07-24
[ [ "Adam", "Christoph", "" ] ]
We use (fermion) mass perturbation theory for the massive Schwinger model to compute the boson-boson bound state mass in lowest order. For small fermion mass the lowest possible Fock state turns out to give the main contribution and leads to a second order result for the bound state mass.
1005.5066
Shuiguo Wen PhD.
Shuiguo Wen and Jueping Liu
$D_s(0^\pm)$ Mesons spectroscopy in Gaussian Sum Rules
5 pages, 4 figures
Chin. Phys. Lett.26:021201, 2009
10.1088/0256-307X/26/2/021201
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The masses of the $D_s(0^\pm)$ mesons are investigated from a view-point of ordinary light-heavy system in the framework of the Gaussian sum rules, which are worked out by means of the Laplacian transformation to the usual Borel sum rules. Using the standard input of QCD non-perturbative parameters, the corresponding...
[ { "created": "Thu, 27 May 2010 13:30:24 GMT", "version": "v1" } ]
2014-11-21
[ [ "Wen", "Shuiguo", "" ], [ "Liu", "Jueping", "" ] ]
The masses of the $D_s(0^\pm)$ mesons are investigated from a view-point of ordinary light-heavy system in the framework of the Gaussian sum rules, which are worked out by means of the Laplacian transformation to the usual Borel sum rules. Using the standard input of QCD non-perturbative parameters, the corresponding m...
1407.3148
Debmalya Mukhopadhyay
Debmalya Mukhopadhyay, Amitabha Lahiri
$\beta$-function for topologically massive gluons
Pages:17, Figures:12. This is the final version of the paper published in Phys Rev. D
Phys. Rev. D 90, 025015(2014)
10.1103/PhysRevD.90.025015
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the quantum corrections to the two-point function of four dimensional topologically massive non-Abelian vector fields at one loop order for $SU(N)$ gauge theory in Feynman-'t Hooft gauge. We calculate the beta function of the gauge coupling constant and find that the theory becomes asymptotically free fa...
[ { "created": "Fri, 11 Jul 2014 13:20:27 GMT", "version": "v1" }, { "created": "Mon, 14 Jul 2014 07:34:02 GMT", "version": "v2" } ]
2014-07-15
[ [ "Mukhopadhyay", "Debmalya", "" ], [ "Lahiri", "Amitabha", "" ] ]
We calculate the quantum corrections to the two-point function of four dimensional topologically massive non-Abelian vector fields at one loop order for $SU(N)$ gauge theory in Feynman-'t Hooft gauge. We calculate the beta function of the gauge coupling constant and find that the theory becomes asymptotically free fast...
1109.5106
Edoardo Mirabella Dr.
Ruth Britto and Edoardo Mirabella
External leg corrections in the unitarity method
28 pages, 9 figures. Published version. Eq. (B.17) corrected, minor clarifications, typos fixed
null
10.1007/JHEP01(2012)045
IPhT-t11/185
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Unitarity cuts diverge in the channel of a single massive external fermion. We propose an off-shell continuation of the momentum that allows a finite evaluation of the unitarity cuts. If the cut is taken with complete amplitudes on each side, our continuation and expansion around the on-shell configuration produces t...
[ { "created": "Fri, 23 Sep 2011 15:09:22 GMT", "version": "v1" }, { "created": "Sat, 11 Feb 2012 09:48:56 GMT", "version": "v2" } ]
2015-05-30
[ [ "Britto", "Ruth", "" ], [ "Mirabella", "Edoardo", "" ] ]
Unitarity cuts diverge in the channel of a single massive external fermion. We propose an off-shell continuation of the momentum that allows a finite evaluation of the unitarity cuts. If the cut is taken with complete amplitudes on each side, our continuation and expansion around the on-shell configuration produces the...
2407.20658
Christian K\"ading
Hauke Fischer, Christian K\"ading, Mario Pitschmann
Quantum and thermal pressures from light scalar fields
18 pages, 4 figures
null
null
null
hep-ph astro-ph.CO gr-qc hep-th quant-ph
http://creativecommons.org/licenses/by/4.0/
Light scalar fields play a variety of roles in modern physics, especially in cosmology and modified theories of gravity. For this reason, there is a zoo of experiments actively trying to find evidence for many scalar field models that have been proposed in theoretical considerations. Among those are setups in which t...
[ { "created": "Tue, 30 Jul 2024 08:52:19 GMT", "version": "v1" } ]
2024-07-31
[ [ "Fischer", "Hauke", "" ], [ "Käding", "Christian", "" ], [ "Pitschmann", "Mario", "" ] ]
Light scalar fields play a variety of roles in modern physics, especially in cosmology and modified theories of gravity. For this reason, there is a zoo of experiments actively trying to find evidence for many scalar field models that have been proposed in theoretical considerations. Among those are setups in which the...
hep-ph/9909202
Susan Gardner
S. Gardner (Kentucky) and G. Valencia (Iowa State)
Additional Isospin-Breaking Effects in \epsilon^\prime/\epsilon
11 pages, LaTeX; notational errors rectified, refs. added, footnote corrected
Phys.Lett.B466:355-362,1999
10.1016/S0370-2693(99)01164-8
ISU-HET-99-05, UK/TP 99-09
hep-ph
null
In the analysis of \epsilon^\prime/\epsilon it has been traditional to consider the isospin-breaking effects arising from electroweak-penguin contributions and from \pi^0-\eta and \pi^0-\eta^\prime mixing, yet additional isospin-violating effects exist. In particular, we study the isospin violation which arises from ...
[ { "created": "Wed, 1 Sep 1999 00:08:11 GMT", "version": "v1" }, { "created": "Mon, 13 Sep 1999 21:00:56 GMT", "version": "v2" } ]
2008-11-26
[ [ "Gardner", "S.", "", "Kentucky" ], [ "Valencia", "G.", "", "Iowa State" ] ]
In the analysis of \epsilon^\prime/\epsilon it has been traditional to consider the isospin-breaking effects arising from electroweak-penguin contributions and from \pi^0-\eta and \pi^0-\eta^\prime mixing, yet additional isospin-violating effects exist. In particular, we study the isospin violation which arises from th...