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1305.1281
Adrian Pallares MSc
A. Pallares-Rivera, F. de J. Rosales-Aldape, M. Kirchbach
Breaking so(4) symmetry without degeneracy lift
Prepared for the proceedings of the conference "Lie Theory and Its Applications In Physics", June 17-23, 2013, Varna, Bulgaria
Springer Proceedings in Mathematics and Statistics, Vol. 111 pp. 395-404 (2014)
10.1007/978-4-431-55285-7
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We argue that in the quantum motion of a scalar particle of mass "m" on S^3_R perturbed by the trigonometric Scarf potential (Scarf I) with one internal quantized dimensionless parameter, \ell, the 3D orbital angular momentum, and another, an external scale introducing continuous parameter, B, a loss of the geometric...
[ { "created": "Mon, 6 May 2013 19:24:33 GMT", "version": "v1" }, { "created": "Mon, 17 Feb 2014 22:17:43 GMT", "version": "v2" } ]
2015-02-09
[ [ "Pallares-Rivera", "A.", "" ], [ "Rosales-Aldape", "F. de J.", "" ], [ "Kirchbach", "M.", "" ] ]
We argue that in the quantum motion of a scalar particle of mass "m" on S^3_R perturbed by the trigonometric Scarf potential (Scarf I) with one internal quantized dimensionless parameter, \ell, the 3D orbital angular momentum, and another, an external scale introducing continuous parameter, B, a loss of the geometric h...
1902.00008
Xiaoyun Chen
Xiaoyun Chen
Analysis of hidden-bottom bb\bar{b}\bar{b} states
7 pages, 1 figure
null
10.1140/epja/i2019-12807-2
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivated by the searching for $bb\bar{b}\bar{b}$ states at LHC recently, we calculate the ground-state energies of $bb\bar{b}\bar{b}$ states with quantum numbers $IJ^P=00^+,01^+,02^+$ in a nonrelativistic chiral quark model using the Gaussian expansion method. In our calculations, two structures, meson-meson and diq...
[ { "created": "Thu, 31 Jan 2019 07:56:02 GMT", "version": "v1" }, { "created": "Sat, 20 Apr 2019 09:09:33 GMT", "version": "v2" } ]
2022-10-12
[ [ "Chen", "Xiaoyun", "" ] ]
Motivated by the searching for $bb\bar{b}\bar{b}$ states at LHC recently, we calculate the ground-state energies of $bb\bar{b}\bar{b}$ states with quantum numbers $IJ^P=00^+,01^+,02^+$ in a nonrelativistic chiral quark model using the Gaussian expansion method. In our calculations, two structures, meson-meson and diqua...
0803.0446
Emil Avsar
Emil Avsar
On the High Energy Behaviour of The Total Cross Section in the QCD Dipole Model
v2:reference added v3:section 2.2 extended, some new figures and references. Version to appear in JHEP
JHEP0804:033,2008
10.1088/1126-6708/2008/04/033
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we perform a numerical study of the tranverse expansion of hadronic scattering amplitudes in the dipole picture of high energy QCD. We go beyond the mean field approximation by including fluctuations and also wave function saturation effects, and the evolution with both a fixed and a running coupling is...
[ { "created": "Tue, 4 Mar 2008 14:03:37 GMT", "version": "v1" }, { "created": "Fri, 7 Mar 2008 10:12:08 GMT", "version": "v2" }, { "created": "Thu, 10 Apr 2008 13:12:00 GMT", "version": "v3" } ]
2008-11-26
[ [ "Avsar", "Emil", "" ] ]
In this paper we perform a numerical study of the tranverse expansion of hadronic scattering amplitudes in the dipole picture of high energy QCD. We go beyond the mean field approximation by including fluctuations and also wave function saturation effects, and the evolution with both a fixed and a running coupling is i...
1003.0828
Victor Goncalves
V.P. Goncalves, M.V.T. Machado, A.R. Meneses
Non-linear QCD dynamics and exclusive production in $ep$ collisions
6 pages, 4 figures
Eur.Phys.J.C68:133-139,2010
10.1140/epjc/s10052-010-1332-4
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The exclusive processes in electron-proton ($ep$) interactions are an important tool to investigate the QCD dynamics at high energies as they are in general driven by the gluon content of proton which is strongly subject to parton saturation effects. In this paper we compute the cross sections for the exclusive vecto...
[ { "created": "Wed, 3 Mar 2010 16:13:26 GMT", "version": "v1" } ]
2014-11-20
[ [ "Goncalves", "V. P.", "" ], [ "Machado", "M. V. T.", "" ], [ "Meneses", "A. R.", "" ] ]
The exclusive processes in electron-proton ($ep$) interactions are an important tool to investigate the QCD dynamics at high energies as they are in general driven by the gluon content of proton which is strongly subject to parton saturation effects. In this paper we compute the cross sections for the exclusive vector ...
hep-ph/9405241
Matteo Cacciari
M. Cacciari and M. Greco
J/psi Production via Fragmentation at the Tevatron
LaTeX, 7 pages. Preprint FNT/T-94/13, LNF-94/024(P). Data taken from a reference were incorrect and have been changed. Complete postscript file available via anonymous ftp at cobra1.pv.infn.it, as pub/jpsi.ps(.Z)(.gz)
Phys.Rev.Lett. 73 (1994) 1586-1589
10.1103/PhysRevLett.73.1586
null
hep-ph
null
The production of $\jpsi$ at large transverse momenta ($\pt > M_\jpsi$) in $p\bar p$ collisions is considered by including the mechanism of fragmentation. Both contributions of fragmentation to $\jpsi$ and of fragmentation to $\chi$ states followed by radiative decay to $\jpsi$ are taken into account. The latter is f...
[ { "created": "Fri, 6 May 1994 09:54:25 GMT", "version": "v1" }, { "created": "Tue, 31 May 1994 09:29:19 GMT", "version": "v2" } ]
2009-10-28
[ [ "Cacciari", "M.", "" ], [ "Greco", "M.", "" ] ]
The production of $\jpsi$ at large transverse momenta ($\pt > M_\jpsi$) in $p\bar p$ collisions is considered by including the mechanism of fragmentation. Both contributions of fragmentation to $\jpsi$ and of fragmentation to $\chi$ states followed by radiative decay to $\jpsi$ are taken into account. The latter is fou...
1201.3996
Henry Tsz-King Wong
S. Bilmis, M. Deniz, H. B. Li, J. Li, H. Y. Liao, S. T. Lin, V. Singh, H. T. Wong, I. O. Yildirim, Q. Yue, and M. Zeyrek
Constraints on Non-Commutative Physics Scale with Neutrino-Electron Scattering
6 pages, 2 figures, 2 tables, V2: minor revisions to match published version
Phys. Rev. D 85, 073011 (2012)
10.1103/PhysRevD.85.073011
AS-TEXONO/12-01
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Neutrino-electron scatterings ($\nu - e$) are purely leptonic processes with robust Standard Model (SM) predictions. Their measurements can therefore provide constraints to physics beyond SM. Non-commutative (NC) field theories modify space-time commutation relations, and allow neutrino electromagnetic couplings at t...
[ { "created": "Thu, 19 Jan 2012 09:39:04 GMT", "version": "v1" }, { "created": "Sat, 21 Apr 2012 08:05:50 GMT", "version": "v2" } ]
2012-04-24
[ [ "Bilmis", "S.", "" ], [ "Deniz", "M.", "" ], [ "Li", "H. B.", "" ], [ "Li", "J.", "" ], [ "Liao", "H. Y.", "" ], [ "Lin", "S. T.", "" ], [ "Singh", "V.", "" ], [ "Wong", "H. T.", "" ], [...
Neutrino-electron scatterings ($\nu - e$) are purely leptonic processes with robust Standard Model (SM) predictions. Their measurements can therefore provide constraints to physics beyond SM. Non-commutative (NC) field theories modify space-time commutation relations, and allow neutrino electromagnetic couplings at the...
hep-ph/0111369
Tsou Sheung Tsun
J. Bordes (Valencia), H.M. Chan (Rutherford Appleton Lab) and S.T. Tsou (Oxford)
Lepton Transmutation in the Dualized Standard Model
25 pages, Latex, 8 figures embedded in text
Phys.Rev. D65 (2002) 093006
10.1103/PhysRevD.65.093006
null
hep-ph
null
The successful explanation of fermion mixing and of the fermion mass hierarchy by the Dualized Standard Model (DSM) scheme is based on the premises of a fermion mass matrix rotating in generation space with changing scales at a certain speed, which could in principle lead to sizeable flavour-violation observable in h...
[ { "created": "Wed, 28 Nov 2001 11:18:08 GMT", "version": "v1" } ]
2009-11-07
[ [ "Bordes", "J.", "", "Valencia" ], [ "Chan", "H. M.", "", "Rutherford Appleton Lab" ], [ "Tsou", "S. T.", "", "Oxford" ] ]
The successful explanation of fermion mixing and of the fermion mass hierarchy by the Dualized Standard Model (DSM) scheme is based on the premises of a fermion mass matrix rotating in generation space with changing scales at a certain speed, which could in principle lead to sizeable flavour-violation observable in hig...
hep-ph/9609366
Daniel Boyanovsky
D. Boyanovsky, H. J. de Vega and R. Holman
Reply to: Comments on ``Analytic and Numerical Study of Preheating Dynamics''
5 pages, revtex
null
null
PITT 1244-95, LPTHE 4832-95,CMU-HEP 4988-95
hep-ph
null
Reply to the comment by L. Kofman, A. Linde and A.A. Starobinsky (hep-ph/9608341) to our article ``Analytic and Numerical Study of Preheating Dynamics'' (hep-ph/9608205).
[ { "created": "Mon, 16 Sep 1996 14:11:35 GMT", "version": "v1" } ]
2007-05-23
[ [ "Boyanovsky", "D.", "" ], [ "de Vega", "H. J.", "" ], [ "Holman", "R.", "" ] ]
Reply to the comment by L. Kofman, A. Linde and A.A. Starobinsky (hep-ph/9608341) to our article ``Analytic and Numerical Study of Preheating Dynamics'' (hep-ph/9608205).
1402.0323
Bernard Pire
H. Moutarde, B. Pire, F. Sabati\'e, L. Szymanowski, J. Wagner
On Deeply Virtual Compton Scattering at next-to-leading order
10 pages, conference LIGHTCONE 2013, 20-24 May 2013, Skiathos, Greece
null
10.1007/s00601-014-0857-8
CPHT- PC101.1213
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Deeply Virtual Compton Scattering in the near forward kinematic region is the golden access to Generalized Parton Distributions. We studied the O(alphaS) corrections to the scattering amplitude for both spacelike and timelike kinematics relevant respectively to the leptoproduction of a real photon and to the photopro...
[ { "created": "Mon, 3 Feb 2014 09:45:14 GMT", "version": "v1" } ]
2015-06-18
[ [ "Moutarde", "H.", "" ], [ "Pire", "B.", "" ], [ "Sabatié", "F.", "" ], [ "Szymanowski", "L.", "" ], [ "Wagner", "J.", "" ] ]
Deeply Virtual Compton Scattering in the near forward kinematic region is the golden access to Generalized Parton Distributions. We studied the O(alphaS) corrections to the scattering amplitude for both spacelike and timelike kinematics relevant respectively to the leptoproduction of a real photon and to the photoprodu...
2401.02514
Xiaojun Yao
Bruno Scheihing Hitschfeld and Xiaojun Yao
Recent Developments in Quarkonium as an Open Quantum System in Quark-Gluon Plasma
4 pages, contribution to the proceedings of the 9th Workshop for Young Scientists on the Physics of Ultra-relativistic Nucleus-Nucleus Collisions (Hot Quarks 2022)
null
null
MIT-CTP/5663, IQuS@UW-21-068
hep-ph nucl-th quant-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We review recent progress in understanding quarkonium dynamics inside the quark-gluon plasma as an open quantum system with a focus on the definition and nonperturbative calculations of relevant transport coefficients and generalized gluon distributions.
[ { "created": "Thu, 4 Jan 2024 19:49:21 GMT", "version": "v1" } ]
2024-01-08
[ [ "Hitschfeld", "Bruno Scheihing", "" ], [ "Yao", "Xiaojun", "" ] ]
We review recent progress in understanding quarkonium dynamics inside the quark-gluon plasma as an open quantum system with a focus on the definition and nonperturbative calculations of relevant transport coefficients and generalized gluon distributions.
1503.06075
David Nolde
Stefan Antusch, David Nolde, Stefano Orani
Hill crossing during preheating after hilltop inflation
22 pages, 10 figures, v2 matches publication in JCAP. Animated movies of our simulations are available online at https://particlesandcosmology.unibas.ch/files/hilltop_preheating.html
JCAP 1506 (2015) 06, 009
10.1088/1475-7516/2015/06/009
null
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In 'hilltop inflation', inflation takes place when the inflaton field slowly rolls from close to a maximum of its potential (i.e. the 'hilltop') towards its minimum. When the inflaton potential is associated with a phase transition, possible topological defects produced during this phase transition, such as domain wa...
[ { "created": "Fri, 20 Mar 2015 14:04:35 GMT", "version": "v1" }, { "created": "Tue, 23 Jun 2015 10:56:29 GMT", "version": "v2" } ]
2015-06-24
[ [ "Antusch", "Stefan", "" ], [ "Nolde", "David", "" ], [ "Orani", "Stefano", "" ] ]
In 'hilltop inflation', inflation takes place when the inflaton field slowly rolls from close to a maximum of its potential (i.e. the 'hilltop') towards its minimum. When the inflaton potential is associated with a phase transition, possible topological defects produced during this phase transition, such as domain wall...
hep-ph/9306332
Shafi Qaisar
G.Lazarides, C.Panagiotakopoulos, Q.Shafi
Supersymmetric Unification without Proton Decay
15 pages, LATEX, BA-93-23
Phys.Lett.B315:325-330,1993; ERRATUM-ibid.B317:661,1993
10.1016/0370-2693(93)91620-3
null
hep-ph
null
We present a supersymmetric grand unification scheme based on the gauge group SU(3)_c X SU(3)_L X SU(3)_R in which the proton and the lightest supersymmetric particle are stable, neutrinos are necessarily massive, and the observed baryon asymmetry originates in the lepton sector. Such models are also consistent with ...
[ { "created": "Wed, 30 Jun 1993 12:37:00 GMT", "version": "v1" } ]
2008-11-26
[ [ "Lazarides", "G.", "" ], [ "Panagiotakopoulos", "C.", "" ], [ "Shafi", "Q.", "" ] ]
We present a supersymmetric grand unification scheme based on the gauge group SU(3)_c X SU(3)_L X SU(3)_R in which the proton and the lightest supersymmetric particle are stable, neutrinos are necessarily massive, and the observed baryon asymmetry originates in the lepton sector. Such models are also consistent with th...
1202.6621
Rachid Benbrik
A. Arhrib, R. Benbrik, M. Chabab, G. Moultaka and L. Rahili
h \gamma \gamma Coupling in Higgs Triplet Model
Latex, 7 pages, 2 Figures. The 2011 International Workshop on Future Linear Colliders (LCWS11), Granada, Spain
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate Higgs boson decay into two photons in the type-II seesaw model. The rate of $h\to \gamma\gamma$ gets suppressed/enhanced in this model compared to the Standard Model (SM) due to the presence of the singly and doubly charged Higgs $H^\pm$ and $H^{\pm\pm}$.
[ { "created": "Wed, 29 Feb 2012 17:45:17 GMT", "version": "v1" } ]
2015-03-20
[ [ "Arhrib", "A.", "" ], [ "Benbrik", "R.", "" ], [ "Chabab", "M.", "" ], [ "Moultaka", "G.", "" ], [ "Rahili", "L.", "" ] ]
We investigate Higgs boson decay into two photons in the type-II seesaw model. The rate of $h\to \gamma\gamma$ gets suppressed/enhanced in this model compared to the Standard Model (SM) due to the presence of the singly and doubly charged Higgs $H^\pm$ and $H^{\pm\pm}$.
hep-ph/9911207
Elena Boglione
M. Boglione and E. Leader
Reassessment of the Collins Mechanism for Single-spin Asymmetries and the behavior of Delta d(x) at large x
13 pages, 11 figures, 1 table and 4 figures changed. Revised version to appear in Phys. Rev. D
Phys.Rev.D61:114001,2000
10.1103/PhysRevD.61.114001
null
hep-ph
null
It is shown that the Collins mechanism explanation of the transverse single-spin asymmetries in p^{\uparrow} p -> \pi X leads to a transversely polarized d quark density Delta_T d(x) which violates the Soffer bound when one uses several standard forms for the longitudinally polarized d quark density Delta d(x) obtain...
[ { "created": "Tue, 2 Nov 1999 16:55:34 GMT", "version": "v1" }, { "created": "Tue, 21 Dec 1999 08:33:23 GMT", "version": "v2" }, { "created": "Thu, 9 Mar 2000 15:45:23 GMT", "version": "v3" } ]
2011-02-01
[ [ "Boglione", "M.", "" ], [ "Leader", "E.", "" ] ]
It is shown that the Collins mechanism explanation of the transverse single-spin asymmetries in p^{\uparrow} p -> \pi X leads to a transversely polarized d quark density Delta_T d(x) which violates the Soffer bound when one uses several standard forms for the longitudinally polarized d quark density Delta d(x) obtained...
1909.04228
Ayuki Kamada
Ayuki Kamada, Takumi Kuwahara
Lessons from $T^{\mu}_{~ \mu}$ on inflation models: two-scalar theory and Yukawa theory
18+9 pages, 5 figures; minor changes to match the version accepted in PRD
Phys. Rev. D 101, 096012 (2020)
10.1103/PhysRevD.101.096012
CTPU-PTC-19-24
hep-ph gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We demonstrate two properties of the trace of the energy-momentum tensor $T^{\mu}_{~ \mu}$ in the flat spacetime. One is the decoupling of heavy degrees of freedom; i.e., heavy degrees of freedom leave no effect for low-energy $T^{\mu}_{~ \mu}$-inserted amplitudes. This is intuitively apparent from the effective fiel...
[ { "created": "Tue, 10 Sep 2019 01:37:02 GMT", "version": "v1" }, { "created": "Fri, 15 May 2020 01:52:45 GMT", "version": "v2" } ]
2020-05-27
[ [ "Kamada", "Ayuki", "" ], [ "Kuwahara", "Takumi", "" ] ]
We demonstrate two properties of the trace of the energy-momentum tensor $T^{\mu}_{~ \mu}$ in the flat spacetime. One is the decoupling of heavy degrees of freedom; i.e., heavy degrees of freedom leave no effect for low-energy $T^{\mu}_{~ \mu}$-inserted amplitudes. This is intuitively apparent from the effective field ...
hep-ph/0602163
Ronny Thomas
R. Thomas, S. Zschocke, T. Hilger, B. Kampfer
Hunting Medium Modifications of the Chiral Condensate
Invited talk at the 44th International Winter Meeting on Nuclear Physics, Bormio, Italy, Jan 29 - Feb 5, 2006
null
null
null
hep-ph
null
With QCD sum rule evaluations, spectral changes of hadrons inside nuclear matter are considered, which shed light on QCD condensates and thus on the non-perturbative structure of the QCD ground state. For some light quark configurations, omega meson and nucleon, the relevance of four-quark condensates is compared; th...
[ { "created": "Fri, 17 Feb 2006 14:54:14 GMT", "version": "v1" } ]
2007-05-23
[ [ "Thomas", "R.", "" ], [ "Zschocke", "S.", "" ], [ "Hilger", "T.", "" ], [ "Kampfer", "B.", "" ] ]
With QCD sum rule evaluations, spectral changes of hadrons inside nuclear matter are considered, which shed light on QCD condensates and thus on the non-perturbative structure of the QCD ground state. For some light quark configurations, omega meson and nucleon, the relevance of four-quark condensates is compared; the ...
hep-ph/0111015
Robert L. Thews
R. L. Thews (Department of Physics, University of Arizona)
Quarkonium Formation at High Energy
5 pages, 4 figures, Presented at International Conference on Statistical QCD, Bielefeld, Germany, August 26-30, 2001, to be published in Proceedings
Nucl.Phys. A702 (2002) 341-345
10.1016/S0375-9474(02)00721-2
null
hep-ph nucl-th
null
The production of quarkonium in heavy ion collisions is studied at RHIC and LHC energies. General arguments indicate that, due to initial production of multiple quark pairs in each central collision, the final population of quarkonium may exhibit significant enhancements over straightforward extrapolation of behavior...
[ { "created": "Thu, 1 Nov 2001 18:42:17 GMT", "version": "v1" } ]
2009-11-07
[ [ "Thews", "R. L.", "", "Department of Physics, University of Arizona" ] ]
The production of quarkonium in heavy ion collisions is studied at RHIC and LHC energies. General arguments indicate that, due to initial production of multiple quark pairs in each central collision, the final population of quarkonium may exhibit significant enhancements over straightforward extrapolation of behavior a...
hep-ph/0002092
Juan Maldacena
Juan Maldacena
Gravity, particle physics and their unification
latex, 8 figures. Talk at Lepton-Photon 99. Talk for non-string-theorists
Int.J.Mod.Phys. A15S1 (2000) 840-852; eConf C990809 (2000) 840-852
10.1142/S0217751X00005449
null
hep-ph hep-th
null
We explain the need for a theory of quantum gravity and some general ideas about string theory, including the idea of the derivation of the Hawking Bekenstein entropy formula for extremal black holes. We then give a general description of the correspondence between the large N limit of certain gauge theories and stri...
[ { "created": "Tue, 8 Feb 2000 22:35:38 GMT", "version": "v1" } ]
2009-10-31
[ [ "Maldacena", "Juan", "" ] ]
We explain the need for a theory of quantum gravity and some general ideas about string theory, including the idea of the derivation of the Hawking Bekenstein entropy formula for extremal black holes. We then give a general description of the correspondence between the large N limit of certain gauge theories and string...
hep-ph/9911301
Philip Page
Philip R. Page
(Field) Symmetrization Selection Rules
20 pages, LaTeX. Two postscript figures. Final published version
Phys.Rev. D64 (2001) 056009
10.1103/PhysRevD.64.056009
LA-UR-99-5756
hep-ph hep-th
null
QCD and QED exhibit an infinite set of three-point Green's functions that contain only OZI rule violating contributions, and (for QCD) are subleading in the large N_c expansion. The Green's functions describe the ``decay'' of a J^{PC}={1,3,5 ...}^{-+} exotic hybrid meson current to two J=0 (hybrid) meson currents wit...
[ { "created": "Wed, 10 Nov 1999 14:35:23 GMT", "version": "v1" }, { "created": "Fri, 12 Nov 1999 20:11:02 GMT", "version": "v2" }, { "created": "Thu, 6 Jan 2000 02:31:01 GMT", "version": "v3" }, { "created": "Wed, 18 Jul 2001 22:55:13 GMT", "version": "v4" } ]
2009-10-31
[ [ "Page", "Philip R.", "" ] ]
QCD and QED exhibit an infinite set of three-point Green's functions that contain only OZI rule violating contributions, and (for QCD) are subleading in the large N_c expansion. The Green's functions describe the ``decay'' of a J^{PC}={1,3,5 ...}^{-+} exotic hybrid meson current to two J=0 (hybrid) meson currents with ...
1907.00611
Francisco Torrenti
Stefan Antusch, Francesco Cefala, Francisco Torrenti
Properties of oscillons in hilltop potentials: energies, shapes, and lifetimes
22 pages, 11 figures. Minor changes to match version published in JCAP
JCAP 1910 (2019) no.10, 002
10.1088/1475-7516/2019/10/002
null
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Oscillons are spatially localised strong fluctuations of a scalar field. They can e.g. form after inflation when the scalar field potential is shallower than quadratic away from the minimum. Although oscillons are not protected by topology, they can be remarkably stable and have a significant impact on the (p)reheati...
[ { "created": "Mon, 1 Jul 2019 08:48:31 GMT", "version": "v1" }, { "created": "Wed, 9 Oct 2019 13:35:36 GMT", "version": "v2" } ]
2019-10-10
[ [ "Antusch", "Stefan", "" ], [ "Cefala", "Francesco", "" ], [ "Torrenti", "Francisco", "" ] ]
Oscillons are spatially localised strong fluctuations of a scalar field. They can e.g. form after inflation when the scalar field potential is shallower than quadratic away from the minimum. Although oscillons are not protected by topology, they can be remarkably stable and have a significant impact on the (p)reheating...
hep-ph/0106002
Solveig Skadhauge
G. Barenboim, A. Dighe, S. Skadhauge
Combining LSND and Atmospheric Anomalies in a Three-Neutrino Picture
null
Phys.Rev.D65:053001,2002
10.1103/PhysRevD.65.053001
null
hep-ph
null
We investigate the three-neutrino mixing scheme for solving the atmospheric and LSND anomalies. We find the region in the parameter space that provides a good fit to the LSND and the SK atmospheric data, taking into account the CHOOZ constraint. We demonstrate that the goodness of this fit is comparable to that of th...
[ { "created": "Fri, 1 Jun 2001 04:24:02 GMT", "version": "v1" }, { "created": "Mon, 4 Jun 2001 01:20:36 GMT", "version": "v2" } ]
2011-02-07
[ [ "Barenboim", "G.", "" ], [ "Dighe", "A.", "" ], [ "Skadhauge", "S.", "" ] ]
We investigate the three-neutrino mixing scheme for solving the atmospheric and LSND anomalies. We find the region in the parameter space that provides a good fit to the LSND and the SK atmospheric data, taking into account the CHOOZ constraint. We demonstrate that the goodness of this fit is comparable to that of the ...
1706.08372
George Leontaris
George K. Leontaris and Qaisar Shafi
Phenomenology with F-theory SU(5)
24 pages
Phys. Rev. D 96, 066023 (2017)
10.1103/PhysRevD.96.066023
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore the low energy phenomenology of an F-theory based SU(5) model which, in addition to the known quarks and leptons, contains Standard Model singlets, and vector-like color triplets and SU(2) doublets. Depending on their masses and couplings, some of these new particles may be observed at the LHC and future c...
[ { "created": "Mon, 26 Jun 2017 13:53:27 GMT", "version": "v1" } ]
2017-09-27
[ [ "Leontaris", "George K.", "" ], [ "Shafi", "Qaisar", "" ] ]
We explore the low energy phenomenology of an F-theory based SU(5) model which, in addition to the known quarks and leptons, contains Standard Model singlets, and vector-like color triplets and SU(2) doublets. Depending on their masses and couplings, some of these new particles may be observed at the LHC and future col...
hep-ph/0110058
Alexei Nefediev
Yu.S.Kalashnikova (ITEP, Moscow), A.V.Nefediev (IST, Lisbon and ITEP, Moscow)
QCD_2 in the axial gauge revisited
6 pages, no figures, specialized style files included. Talk given by A.V.Nefediev at 10th Lomonosov Conference on Elementary Particle Physics, Moscow, Russia, 23-29 August 2001, to appear in Proceedings
null
null
null
hep-ph
null
The 't Hooft model for the two-dimensional QCD in the limit of infinite number of colours is studied in the axial gauge. The mass-gap and the bound-state equations are derived using the two consequent Bogoliubov-like transformations. Chiral properties of the model are studied in the Hamiltonian and matrix approaches ...
[ { "created": "Thu, 4 Oct 2001 10:42:47 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kalashnikova", "Yu. S.", "", "ITEP, Moscow" ], [ "Nefediev", "A. V.", "", "IST, Lisbon and ITEP,\n Moscow" ] ]
The 't Hooft model for the two-dimensional QCD in the limit of infinite number of colours is studied in the axial gauge. The mass-gap and the bound-state equations are derived using the two consequent Bogoliubov-like transformations. Chiral properties of the model are studied in the Hamiltonian and matrix approaches to...
2311.18011
David London
Rapha\"el Berthiaume, Bhubanjyoti Bhattacharya, Rida Boumris, Alexandre Jean, Suman Kumbhakar and David London
Anomalies in Hadronic $B$ Decays
5 pages, 1 figure. v2: new references added, experimental numbers updated. Discrepancy with SM now 3.6sigma
null
null
UdeM-GPP-TH-23-299
hep-ph hep-ex
http://creativecommons.org/licenses/by-nc-sa/4.0/
In this paper, we perform fits to $B \to PP$ decays, where $B = \{B^0, B^+, B_s^0\}$ and the pseudoscalar $P = \{\pi, K\}$, under the assumption of flavor SU(3) symmetry [SU(3)$_F$]. Although the fits to $\Delta S=0$ or $\Delta S=1$ decays individually are good, the combined fit is very poor: there is a $3.6\sigma$ d...
[ { "created": "Wed, 29 Nov 2023 19:01:04 GMT", "version": "v1" }, { "created": "Tue, 12 Dec 2023 04:32:44 GMT", "version": "v2" } ]
2023-12-13
[ [ "Berthiaume", "Raphaël", "" ], [ "Bhattacharya", "Bhubanjyoti", "" ], [ "Boumris", "Rida", "" ], [ "Jean", "Alexandre", "" ], [ "Kumbhakar", "Suman", "" ], [ "London", "David", "" ] ]
In this paper, we perform fits to $B \to PP$ decays, where $B = \{B^0, B^+, B_s^0\}$ and the pseudoscalar $P = \{\pi, K\}$, under the assumption of flavor SU(3) symmetry [SU(3)$_F$]. Although the fits to $\Delta S=0$ or $\Delta S=1$ decays individually are good, the combined fit is very poor: there is a $3.6\sigma$ dis...
0902.0180
Paolo Nason
F. Ambroglini, R. Armillis, P. Azzi, G. Bagliesi, A. Ballestrero, G. Balossini, A. Banfi, P. Bartalini, D. Benedetti, G. Bevilacqua, S. Bolognesi, A. Cafarella, C.M. Carloni Calame, L. Carminati, M. Cobal, G. Corcella, C. Coriano', A. Dainese, V. Del Duca, F. Fabbri, M. Fabbrichesi, L. Fano', Alon E. Faraggi, S...
Proceedings of the Workshop on Monte Carlo's, Physics and Simulations at the LHC PART II
157 pages, 136 figures; contribution by M. Grazzini has been added
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
These proceedings collect the presentations given at the first three meetings of the INFN "Workshop on Monte Carlo's, Physics and Simulations at the LHC", held at the Frascati National Laboratories in 2006. The first part of these proceedings contains pedagogical introductions to several basic topics of both theoreti...
[ { "created": "Mon, 2 Feb 2009 18:44:50 GMT", "version": "v1" }, { "created": "Fri, 13 Feb 2009 09:50:58 GMT", "version": "v2" } ]
2009-02-13
[ [ "Ambroglini", "F.", "" ], [ "Armillis", "R.", "" ], [ "Azzi", "P.", "" ], [ "Bagliesi", "G.", "" ], [ "Ballestrero", "A.", "" ], [ "Balossini", "G.", "" ], [ "Banfi", "A.", "" ], [ "Bartalini", ...
These proceedings collect the presentations given at the first three meetings of the INFN "Workshop on Monte Carlo's, Physics and Simulations at the LHC", held at the Frascati National Laboratories in 2006. The first part of these proceedings contains pedagogical introductions to several basic topics of both theoretica...
1405.0301
Stefano Frixione
J. Alwall, R. Frederix, S. Frixione, V. Hirschi, F. Maltoni, O. Mattelaer, H.-S. Shao, T. Stelzer, P. Torrielli, M. Zaro
The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
158 pages, 27 figures; a few references have been added
JHEP07(2014)079
10.1007/JHEP07(2014)079
CERN-PH-TH/2014-064, CP3-14-18, LPN14-066, MCNET-14-09, ZU-TH 14/14
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the theoretical bases that underpin the automation of the computations of tree-level and next-to-leading order cross sections, of their matching to parton shower simulations, and of the merging of matched samples that differ by light-parton multiplicities. We present a computer program, MadGraph5_aMC@NLO, ...
[ { "created": "Thu, 1 May 2014 20:24:46 GMT", "version": "v1" }, { "created": "Mon, 21 Jul 2014 09:46:15 GMT", "version": "v2" } ]
2015-06-19
[ [ "Alwall", "J.", "" ], [ "Frederix", "R.", "" ], [ "Frixione", "S.", "" ], [ "Hirschi", "V.", "" ], [ "Maltoni", "F.", "" ], [ "Mattelaer", "O.", "" ], [ "Shao", "H. -S.", "" ], [ "Stelzer", "T."...
We discuss the theoretical bases that underpin the automation of the computations of tree-level and next-to-leading order cross sections, of their matching to parton shower simulations, and of the merging of matched samples that differ by light-parton multiplicities. We present a computer program, MadGraph5_aMC@NLO, ca...
1203.6192
Ragavachariar Parthasarathy
R. Parthasarathy
Causality of the Brane Universe - OPERA and ICARUS
7 Pages; No figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The apparent violation of causality in the brane Universe can be avoided by taking the bulk spacetime modelled by a 5-dimensional Kaluza theory with factorizable ansatz for the 5-dimensional metric whose components do not depend on the fifth coordinate and with $G_{55}$ not a constant. The geodesic in the bulk does n...
[ { "created": "Wed, 28 Mar 2012 08:44:00 GMT", "version": "v1" } ]
2012-03-29
[ [ "Parthasarathy", "R.", "" ] ]
The apparent violation of causality in the brane Universe can be avoided by taking the bulk spacetime modelled by a 5-dimensional Kaluza theory with factorizable ansatz for the 5-dimensional metric whose components do not depend on the fifth coordinate and with $G_{55}$ not a constant. The geodesic in the bulk does not...
2202.12907
Xu Li
Xu Li, Shun Zhou
Origin of Neutrino Masses on the Convex Cone of Positivity Bounds
7 pages, 2 tables, 2 figures
Phys. Rev. D 107, L031902, Published 13 February 2023
10.1103/PhysRevD.107.L031902
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We exhibit the geometric structure of the convex cone in the linear space of the Wilson coefficients for the dimension-8 operators involving the left-handed lepton doublet $L$ and the Higgs doublet $H$ in the Standard Model effective field theory (SMEFT). The boundary of the convex cone gives rise to the positivity b...
[ { "created": "Fri, 25 Feb 2022 19:00:38 GMT", "version": "v1" }, { "created": "Mon, 20 Feb 2023 15:57:22 GMT", "version": "v2" } ]
2023-02-21
[ [ "Li", "Xu", "" ], [ "Zhou", "Shun", "" ] ]
We exhibit the geometric structure of the convex cone in the linear space of the Wilson coefficients for the dimension-8 operators involving the left-handed lepton doublet $L$ and the Higgs doublet $H$ in the Standard Model effective field theory (SMEFT). The boundary of the convex cone gives rise to the positivity bou...
1701.04816
Abdel Nasser Tawfik
Abdel Nasser Tawfik (Egyptian Ctr. Theor. Phys., Cairo, WLCAPP, Cairo), Hayam Yassin, Eman R. Abo Elyazeed (Ain Shams U., Cairo), Muhammad Maher (Helwan U., Cairo), Abdel Magied Diab (Egyptian Ctr. Theor. Phys., Cairo, WLCAPP, Cairo), Magda Abdel Wahab (Ain Shams U., Cairo), Eiman Abou El Dahab (MTI U., Cairo, ...
Phenomenology of strangeness production at high energies
6 pages, 2 figures, accepted for publication in EPL
EPL, 116 (2016) 62001
10.1209/0295-5075/116/62001
ECTP-2016-13, WLCAPP-2016-13
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The strange-quark occupation factor ($\gamma_s$) is determined from the statistical fit of the multiplicity ratio $\mathrm{K}^+/\pi^+$ in a wide range of nucleon-nucleon center-of-mass energies ($\sqrt{s_{NN}}$). From this single-strange-quark-subsystem, $\gamma_s(\sqrt{s_{NN}})$ was parametrized as a damped trigonom...
[ { "created": "Mon, 16 Jan 2017 20:16:44 GMT", "version": "v1" } ]
2017-02-06
[ [ "Tawfik", "Abdel Nasser", "", "Egyptian Ctr. Theor. Phys., Cairo, WLCAPP,\n Cairo" ], [ "Yassin", "Hayam", "", "Ain Shams U., Cairo" ], [ "Elyazeed", "Eman R. Abo", "", "Ain Shams U., Cairo" ], [ "Maher", "Muhammad", "", "Helwan U., Cair...
The strange-quark occupation factor ($\gamma_s$) is determined from the statistical fit of the multiplicity ratio $\mathrm{K}^+/\pi^+$ in a wide range of nucleon-nucleon center-of-mass energies ($\sqrt{s_{NN}}$). From this single-strange-quark-subsystem, $\gamma_s(\sqrt{s_{NN}})$ was parametrized as a damped trigonomet...
1309.7707
Maxim Perelstein
Michael Saelim and Maxim Perelstein
RPV SUSY with Same-Sign Dileptons at LHC-14
4 pages, 1 figure. Contributed to Snowmass Community Summer Study 2013. v2: references added
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We estimate the sensitivity of the 14 TeV LHC run to an R-parity violating supersymmetric model, via the same-sign dilepton (SSDL) signature. We consider the simplified model with light gluinos and stops, motivated by naturalness. We find that gluinos up to 1.4 TeV can be discovered with an integrated luminosity of 3...
[ { "created": "Mon, 30 Sep 2013 02:31:13 GMT", "version": "v1" }, { "created": "Mon, 7 Oct 2013 14:51:54 GMT", "version": "v2" } ]
2013-10-08
[ [ "Saelim", "Michael", "" ], [ "Perelstein", "Maxim", "" ] ]
We estimate the sensitivity of the 14 TeV LHC run to an R-parity violating supersymmetric model, via the same-sign dilepton (SSDL) signature. We consider the simplified model with light gluinos and stops, motivated by naturalness. We find that gluinos up to 1.4 TeV can be discovered with an integrated luminosity of 300...
1601.01569
Nirakar Sahoo
Subhaditya Bhattacharya, Sudhanwa Patra, Nirakar Sahoo and Narendra Sahu
750 GeV Di-photon excess at CERN LHC from a dark sector assisted scalar decay
20 pages, 11 figures, accepted for publication in JCAP
null
10.1088/1475-7516/2016/06/010
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a simple extension of the standard model (SM) to explain the diphoton excess, reported by CMS and ATLAS at CERN LHC. The SM is extended by a dark sector including a vector-like lepton doublet and a singlet of zero electromagnetic charge, which are odd under a $Z_2$ symmetry. These vector-like leptons assis...
[ { "created": "Thu, 7 Jan 2016 15:38:41 GMT", "version": "v1" }, { "created": "Fri, 27 May 2016 10:19:41 GMT", "version": "v2" } ]
2016-06-15
[ [ "Bhattacharya", "Subhaditya", "" ], [ "Patra", "Sudhanwa", "" ], [ "Sahoo", "Nirakar", "" ], [ "Sahu", "Narendra", "" ] ]
We present a simple extension of the standard model (SM) to explain the diphoton excess, reported by CMS and ATLAS at CERN LHC. The SM is extended by a dark sector including a vector-like lepton doublet and a singlet of zero electromagnetic charge, which are odd under a $Z_2$ symmetry. These vector-like leptons assist ...
1205.4231
C\'eline Degrande
Celine Degrande, Nicolas Greiner, Wolfgang Kilian, Olivier Mattelaer, Harrison Mebane, Tim Stelzer, Scott Willenbrock, Cen Zhang
Effective Field Theory: A Modern Approach to Anomalous Couplings
16 pages, 1 figure
null
10.1016/j.aop.2013.04.016
MPP-2011-149, SI-HEP-2011-17, CP3-12-25
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We advocate an effective field theory approach to anomalous couplings. The effective field theory approach is the natural way to extend the standard model such that the gauge symmetries are respected. It is general enough to capture any physics beyond the standard model, yet also provides guidance as to the most like...
[ { "created": "Fri, 18 May 2012 19:58:08 GMT", "version": "v1" } ]
2015-06-05
[ [ "Degrande", "Celine", "" ], [ "Greiner", "Nicolas", "" ], [ "Kilian", "Wolfgang", "" ], [ "Mattelaer", "Olivier", "" ], [ "Mebane", "Harrison", "" ], [ "Stelzer", "Tim", "" ], [ "Willenbrock", "Scott", "" ...
We advocate an effective field theory approach to anomalous couplings. The effective field theory approach is the natural way to extend the standard model such that the gauge symmetries are respected. It is general enough to capture any physics beyond the standard model, yet also provides guidance as to the most likely...
hep-ph/9911219
Chris Michael
Chris Michael
Quarkonia and Hybrids from the Lattice
10 pages, LATEX using JHEP.cls, 8 figures, talk presented at the 8th International Symposium on Heavy Flavours, July 1999, Southampton, UK
null
null
LTH465
hep-ph
null
The status of lattice determinations of quarkonia and hybrid meson spectra is presented and compared with experiment. Both quenched and unquenched results are discussed. Hybrid meson decays are considered.
[ { "created": "Wed, 3 Nov 1999 11:58:47 GMT", "version": "v1" } ]
2007-05-23
[ [ "Michael", "Chris", "" ] ]
The status of lattice determinations of quarkonia and hybrid meson spectra is presented and compared with experiment. Both quenched and unquenched results are discussed. Hybrid meson decays are considered.
1511.02858
Antonio Racioppi
Stefano Di Chiara, Kristjan Kannike, Luca Marzola, Antonio Racioppi, Martti Raidal, Christian Spethmann
Relaxion Cosmology and the Price of Fine-Tuning
6 pages, 2 figures, 1 table, revised version published on PRD
Phys. Rev. D 93, 103527 (2016)
10.1103/PhysRevD.93.103527
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The relaxion scenario presents an intriguing extension of the standard model in which the particle introduced to solve to the strong CP problem, the axion, also achieves the dynamical relaxation of the Higgs boson mass term. In this work we complete this framework by proposing a scenario of inflationary cosmology tha...
[ { "created": "Mon, 9 Nov 2015 21:00:01 GMT", "version": "v1" }, { "created": "Thu, 8 Sep 2016 12:47:02 GMT", "version": "v2" } ]
2016-09-09
[ [ "Di Chiara", "Stefano", "" ], [ "Kannike", "Kristjan", "" ], [ "Marzola", "Luca", "" ], [ "Racioppi", "Antonio", "" ], [ "Raidal", "Martti", "" ], [ "Spethmann", "Christian", "" ] ]
The relaxion scenario presents an intriguing extension of the standard model in which the particle introduced to solve to the strong CP problem, the axion, also achieves the dynamical relaxation of the Higgs boson mass term. In this work we complete this framework by proposing a scenario of inflationary cosmology that ...
1003.3827
Chao-Hsi Chang
Chao-Hsi Chang and Guo-Li Wang
Spectrum for Heavy Quankonia and Mixture of the Relevant Wave Functions within the Framework of Bethe-Salpeter Equation
26 pages, 8 figures
Sci. China G53:2005-2018,2010
10.1007/s11433-010-4156-1
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Considering the fact that some excited states of the heavy quarkonia (charmonium and bottomonium) still missing in experimental observations and potential applications of the relevant wave functions of the bound states, we re-analyze the spectrum and the relevant wave functions of the heavy quarkonia within the frame...
[ { "created": "Fri, 19 Mar 2010 16:10:50 GMT", "version": "v1" } ]
2011-01-28
[ [ "Chang", "Chao-Hsi", "" ], [ "Wang", "Guo-Li", "" ] ]
Considering the fact that some excited states of the heavy quarkonia (charmonium and bottomonium) still missing in experimental observations and potential applications of the relevant wave functions of the bound states, we re-analyze the spectrum and the relevant wave functions of the heavy quarkonia within the framewo...
1703.03445
Li Cheng
Li Cheng and German Valencia
Validity of two Higgs doublet models with a scalar color octet up to a high energy scale
16 pages, 5 figures; referenced added; typos fixed
Phys. Rev. D 96, 035021 (2017)
10.1103/PhysRevD.96.035021
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We have recently studied theoretical constraints on the parameters of a 2HDM augmented with a color-octet scalar. In this paper we consider the consequences of requiring the model to remain valid up to very high energy scales, such as the GUT scale. The acceptable region of parameter space is reduced when one insists...
[ { "created": "Thu, 9 Mar 2017 19:58:53 GMT", "version": "v1" }, { "created": "Wed, 22 Mar 2017 16:02:29 GMT", "version": "v2" } ]
2017-08-30
[ [ "Cheng", "Li", "" ], [ "Valencia", "German", "" ] ]
We have recently studied theoretical constraints on the parameters of a 2HDM augmented with a color-octet scalar. In this paper we consider the consequences of requiring the model to remain valid up to very high energy scales, such as the GUT scale. The acceptable region of parameter space is reduced when one insists o...
0810.3080
Panying Chen
Panying Chen, Hongwei Ke, Xiangdong Ji
Chiral Logarithms in $\Delta S=1$ Kaon Decay Amplitudes in General Effective Flavor Theories
null
Phys.Rev.D80:014018,2009
10.1103/PhysRevD.80.014018
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the chiral logarithms in $\Delta S=1$ kaon decay amplitudes from new flavor physics in beyond-standard-model theories. We systematically classify the chiral structures of dimension-5, 6 and 7 effective QCD operators constructed out of light-quark (up, down and strange) and gluon fields. Using the standard ch...
[ { "created": "Fri, 17 Oct 2008 08:12:06 GMT", "version": "v1" } ]
2010-04-23
[ [ "Chen", "Panying", "" ], [ "Ke", "Hongwei", "" ], [ "Ji", "Xiangdong", "" ] ]
We study the chiral logarithms in $\Delta S=1$ kaon decay amplitudes from new flavor physics in beyond-standard-model theories. We systematically classify the chiral structures of dimension-5, 6 and 7 effective QCD operators constructed out of light-quark (up, down and strange) and gluon fields. Using the standard chir...
hep-ph/0610223
Qiang Zhao
Qiang Zhao, Gang Li, and Chao-Hsi Chang
Study of electromagnetic decay of $J/\psi$ and $\psi^\prime$ to vector and pseudoscalar
Revtex, 10 pages, 1 eps figure; further discussions about the helicity conservation rule and exp. constraints are included; version to appear in Phys. Lett. B
Phys.Lett.B645:173-179,2007
10.1016/j.physletb.2006.12.037
null
hep-ph hep-ex
null
The electromagnetic decay contributions to $J/\psi(\psi^\prime)\to VP$, where $V$ and $P$ stand for vector and pseudoscalar meson, respectively, are investigated in a vector meson dominance (VMD) model. We show that $J/\psi (\psi^\prime)\to \gamma^*\to VP$ can be constrained well with the available experimental infor...
[ { "created": "Wed, 18 Oct 2006 08:47:58 GMT", "version": "v1" }, { "created": "Thu, 26 Oct 2006 15:10:29 GMT", "version": "v2" }, { "created": "Mon, 18 Dec 2006 11:28:18 GMT", "version": "v3" } ]
2008-11-26
[ [ "Zhao", "Qiang", "" ], [ "Li", "Gang", "" ], [ "Chang", "Chao-Hsi", "" ] ]
The electromagnetic decay contributions to $J/\psi(\psi^\prime)\to VP$, where $V$ and $P$ stand for vector and pseudoscalar meson, respectively, are investigated in a vector meson dominance (VMD) model. We show that $J/\psi (\psi^\prime)\to \gamma^*\to VP$ can be constrained well with the available experimental informa...
hep-ph/0309120
Chao-Hsi Chang
Chao-Hsi Chang, Chafik Driouichi, Paula Eerola and Xing-Gang Wu
BCVEGPY: An Event Generator for Hadronic Production of the B_c Meson
47 pages, 12 figures
Comput.Phys.Commun.159:192-224,2004
10.1016/j.cpc.2004.02.005
null
hep-ph hep-ex
null
We have written a Fortran programme BCVEGPY, which is an event generator for the hadronic production of the $B_c$ meson through the dominant hard subprocess $gg\to B_c(B_c^*) +b+\bar{c}$. To achieve a compact programme, we have written the amplitude of the subprocess with the particle helicity technique and made it a...
[ { "created": "Thu, 11 Sep 2003 08:44:06 GMT", "version": "v1" } ]
2011-03-23
[ [ "Chang", "Chao-Hsi", "" ], [ "Driouichi", "Chafik", "" ], [ "Eerola", "Paula", "" ], [ "Wu", "Xing-Gang", "" ] ]
We have written a Fortran programme BCVEGPY, which is an event generator for the hadronic production of the $B_c$ meson through the dominant hard subprocess $gg\to B_c(B_c^*) +b+\bar{c}$. To achieve a compact programme, we have written the amplitude of the subprocess with the particle helicity technique and made it as ...
hep-ph/0611304
Oleg Andreev
Oleg Andreev, Valentin I. Zakharov
On Heavy-Quark Free Energies, Entropies, Polyakov Loop, and AdS/QCD
15 pages, 10 figures; v2: comments added, misprints corrected
JHEP 0704:100,2007
10.1088/1126-6708/2007/04/100
MPP-2006-162
hep-ph hep-lat hep-th
null
In this paper we explore some of the features of a heavy quark-antiquark pair at finite temperature using a five-dimensional framework nowadays known as AdS/QCD. We shall show that the resulting behavior is consistent with our qualitative expectations of thermal gauge theory. Some of the results are in good agreement...
[ { "created": "Fri, 24 Nov 2006 12:57:21 GMT", "version": "v1" }, { "created": "Mon, 23 Apr 2007 11:57:12 GMT", "version": "v2" } ]
2010-02-03
[ [ "Andreev", "Oleg", "" ], [ "Zakharov", "Valentin I.", "" ] ]
In this paper we explore some of the features of a heavy quark-antiquark pair at finite temperature using a five-dimensional framework nowadays known as AdS/QCD. We shall show that the resulting behavior is consistent with our qualitative expectations of thermal gauge theory. Some of the results are in good agreement w...
hep-ph/9708372
Kirill Melnikov
Andrzej Czarnecki, Kirill Melnikov, Nikolaj Uraltsev
Non-Abelian Dipole Radiation and the Heavy Quark Expansion
12 pages, Latex
Phys.Rev.Lett. 80 (1998) 3189-3192
10.1103/PhysRevLett.80.3189
UND-HEP-97-BIG06, TTP97-33
hep-ph
null
Dipole radiation in QCD is derived to the second order in $\alpha_s$. A power-like evolution of the spin-singlet heavy quark operators is obtained to the same accuracy. In particular, ${\cal O}(\alpha_s^2)$ relation between a short-distance low-scale running heavy quark mass and the $\barMS$ mass is given. We discuss...
[ { "created": "Fri, 15 Aug 1997 18:58:41 GMT", "version": "v1" } ]
2009-10-30
[ [ "Czarnecki", "Andrzej", "" ], [ "Melnikov", "Kirill", "" ], [ "Uraltsev", "Nikolaj", "" ] ]
Dipole radiation in QCD is derived to the second order in $\alpha_s$. A power-like evolution of the spin-singlet heavy quark operators is obtained to the same accuracy. In particular, ${\cal O}(\alpha_s^2)$ relation between a short-distance low-scale running heavy quark mass and the $\barMS$ mass is given. We discuss t...
0812.4165
Heinrich Leutwyler
H.Leutwyler
Recent developments in the physics of light quarks
Contribution to Proc. Confinement and the Hadron Spectrum VIII, Mainz, Germany, Sept. 1-6, 2008
PoS Confinement8:068,2008
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
My talk was dedicated to the memory of Jan Stern. The brief account given below focuses on the progress achieved in the determination of the $\pi\pi$ S-wave scattering lengths, both experimentally and with light dynamical quarks on a lattice. In view of the excellent agreement, we can conclude that (a) the expansion ...
[ { "created": "Mon, 22 Dec 2008 12:19:40 GMT", "version": "v1" } ]
2009-06-25
[ [ "Leutwyler", "H.", "" ] ]
My talk was dedicated to the memory of Jan Stern. The brief account given below focuses on the progress achieved in the determination of the $\pi\pi$ S-wave scattering lengths, both experimentally and with light dynamical quarks on a lattice. In view of the excellent agreement, we can conclude that (a) the expansion in...
hep-ph/0411006
Yogendra Srivastava
G. Pancheri, R. Godbole, A. Grau, Y. N. Srivastava
Total Cross-sections and Bloch-Nordsieck Gluon Resummation
Presented by G. Pancheri at ISMD04, Sonoma State University. Under publication in Acta Physica Polonica. LaTeX format, 10 *.eps files, 7 pages
Acta Phys.Polon. B36 (2005) 735-742
null
null
hep-ph
null
The physics underlying the fall and eventual rise in various total cross-sections at high energies has been investigated over a decade using a model based on the Bloch-Nordsieck resummation in QCD. Here a brief review of our latest results is presented and comparison made with experimental data on $pp$, $\gamma proto...
[ { "created": "Sat, 30 Oct 2004 20:08:32 GMT", "version": "v1" } ]
2007-05-23
[ [ "Pancheri", "G.", "" ], [ "Godbole", "R.", "" ], [ "Grau", "A.", "" ], [ "Srivastava", "Y. N.", "" ] ]
The physics underlying the fall and eventual rise in various total cross-sections at high energies has been investigated over a decade using a model based on the Bloch-Nordsieck resummation in QCD. Here a brief review of our latest results is presented and comparison made with experimental data on $pp$, $\gamma proton$...
hep-ph/0110311
Schildknecht
D. Schildknecht
The $\gamma^* \lowercase{p}$ total cross section at low x
8 pages, Latex using psfig, 5 figures Invited Talk presented at the XXXVth Internat. School of Theoretical Physics, Ustron, Poland, Sept. 10-16, 2001 and at the Internat. Conf. "New Trends in High-Energy Physics", Yalta, Crimea, Ukraine, Sept. 22-29, 2001
Acta Phys.Polon. B32 (2001) 3745-3754
null
null
hep-ph
null
The scaling in $\sigma_{\gamma^*p}(W^2, Q^2)$ cross sections (for $Q^2/W^2 << 1$) in terms of the scaling variable $\eta = (Q^2 + m^2_0)/\Lambda^2 (W^2)$ is interpreted in the generalized vector dominance/color-dipole picture (GVD/CDP). The quantity $\Lambda^2 (W^2)$ is identified as the average gluon transverse mome...
[ { "created": "Wed, 24 Oct 2001 13:17:34 GMT", "version": "v1" }, { "created": "Thu, 25 Oct 2001 09:33:29 GMT", "version": "v2" } ]
2007-05-23
[ [ "Schildknecht", "D.", "" ] ]
The scaling in $\sigma_{\gamma^*p}(W^2, Q^2)$ cross sections (for $Q^2/W^2 << 1$) in terms of the scaling variable $\eta = (Q^2 + m^2_0)/\Lambda^2 (W^2)$ is interpreted in the generalized vector dominance/color-dipole picture (GVD/CDP). The quantity $\Lambda^2 (W^2)$ is identified as the average gluon transverse moment...
1306.1872
Xurong Chen
Xurong Chen, Jianhong Ruan, Rong Wang, Pengming Zhang and Wei Zhu
Applications of a nonlinear evolution equation I: the parton distributions in the proton
30 pages, 18 figures, Published version in Int. J. Mod. Phys. E
Int. J. Mod. Phys. E vol 23 (2014) 1450057
10.1142/S0218301314500578
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The parton distributions in the proton are evaluated dynamically using a nonlinear QCD evolution equation - the DGLAP equation with twist-4 (the GLR-MQ-ZSR) corrections - starting from a low scale $\mu^2$, where the nucleon consists of valence quarks. We find that the negative nonlinear corrections can improve the pe...
[ { "created": "Sat, 8 Jun 2013 03:23:20 GMT", "version": "v1" }, { "created": "Wed, 10 Sep 2014 08:47:41 GMT", "version": "v2" } ]
2014-09-11
[ [ "Chen", "Xurong", "" ], [ "Ruan", "Jianhong", "" ], [ "Wang", "Rong", "" ], [ "Zhang", "Pengming", "" ], [ "Zhu", "Wei", "" ] ]
The parton distributions in the proton are evaluated dynamically using a nonlinear QCD evolution equation - the DGLAP equation with twist-4 (the GLR-MQ-ZSR) corrections - starting from a low scale $\mu^2$, where the nucleon consists of valence quarks. We find that the negative nonlinear corrections can improve the pert...
hep-ph/0209111
Paolo Gondolo
Graciela Gelmini (UCLA), Paolo Gondolo (CWRU), Gabriele Varieschi (LMU)
Measuring the prompt atmospheric neutrino flux with down-going muons in neutrino telescopes
4 pages, 3 figures
Phys.Rev. D67 (2003) 017301
10.1103/PhysRevD.67.017301
UCLA/02/TEP/23, CWRU-P13-02, NSF-ITP-02-97
hep-ph
null
In the TeV energy region and above, the uncertainty in the level of prompt atmospheric neutrinos would limit the search for diffuse astrophysical neutrinos. We suggest that neutrino telescopes may provide an empirical determination of the flux of prompt atmospheric electron and muon neutrinos by measuring the flux of...
[ { "created": "Tue, 10 Sep 2002 22:16:55 GMT", "version": "v1" } ]
2009-11-07
[ [ "Gelmini", "Graciela", "", "UCLA" ], [ "Gondolo", "Paolo", "", "CWRU" ], [ "Varieschi", "Gabriele", "", "LMU" ] ]
In the TeV energy region and above, the uncertainty in the level of prompt atmospheric neutrinos would limit the search for diffuse astrophysical neutrinos. We suggest that neutrino telescopes may provide an empirical determination of the flux of prompt atmospheric electron and muon neutrinos by measuring the flux of p...
0805.0281
Thomas G. Rizzo
Thomas G. Rizzo
Identification of the Origin of Monojet Signatures at the LHC
17 pages, 6 figs; figure and discussions added
Phys.Lett.B665:361-368,2008
10.1016/j.physletb.2008.06.043
SLAC-PUB-13222
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Several new physics scenarios can lead to monojet signatures at the LHC. If such events are observed above the Standard Model background it will be important to identify their origin. In this paper we compare and contrast these signatures as produced in two very different pictures: vector or scalar unparticle product...
[ { "created": "Fri, 2 May 2008 18:33:21 GMT", "version": "v1" }, { "created": "Wed, 11 Jun 2008 14:46:26 GMT", "version": "v2" } ]
2008-11-26
[ [ "Rizzo", "Thomas G.", "" ] ]
Several new physics scenarios can lead to monojet signatures at the LHC. If such events are observed above the Standard Model background it will be important to identify their origin. In this paper we compare and contrast these signatures as produced in two very different pictures: vector or scalar unparticle productio...
hep-ph/9506208
null
G.Montagna(Pavia), O.Nicrosini(CERN) and F.Piccinini(Pavia)
WWGENPV - A Monte Carlo Event Generator For Four-Fermion Production in $e^+ e^- \to W^+ W^- \to 4f$
15 pages, LaTeX, no figures, no macros
Comput.Phys.Commun. 90 (1995) 141-150
10.1016/0010-4655(95)00077-S
CERN-TH/95-100
hep-ph
null
The Monte Carlo program {\tt WWGENPV}, designed for computing distributions and generating events for the four-fermion process $e^+ e^- \to W^+ W^- \to 4f$, is described. It is based on the calculation of the exact tree-level matrix element of the four-fermion reaction and includes initial-state radiation in the lead...
[ { "created": "Thu, 1 Jun 1995 17:34:04 GMT", "version": "v1" } ]
2009-10-28
[ [ "Montagna", "G.", "", "Pavia" ], [ "Nicrosini", "O.", "", "CERN" ], [ "Piccinini", "F.", "", "Pavia" ] ]
The Monte Carlo program {\tt WWGENPV}, designed for computing distributions and generating events for the four-fermion process $e^+ e^- \to W^+ W^- \to 4f$, is described. It is based on the calculation of the exact tree-level matrix element of the four-fermion reaction and includes initial-state radiation in the leadin...
hep-ph/0505042
Ansgar Denner
A. Denner, S. Dittmaier, M. Roth, L.H. Wieders
Electroweak corrections to charged-current e+e- --> 4 fermion processes - technical details and further results
52 pages, latex, 28 postscript figures, error in implementation of complex-mass scheme corrected, relative corrections shifted by 0.4-0.5%, description of complex-mass scheme improved
Nucl.Phys.B724:247-294,2005
10.1016/j.nuclphysb.2005.06.033
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The complete electroweak O(alpha) corrections have been calculated for the charged-current four-fermion production processes e+e- --> nu_tau tau+ mu- anti-nu_mu, u anti-d mu- anti-nu_mu, and u anti-d s anti-c. Here, technical details of this calculation are presented. These include the algebraic reduction of spinor c...
[ { "created": "Fri, 6 May 2005 08:21:41 GMT", "version": "v1" }, { "created": "Tue, 26 Jul 2005 12:46:43 GMT", "version": "v2" }, { "created": "Mon, 29 Aug 2011 14:39:29 GMT", "version": "v3" } ]
2011-08-30
[ [ "Denner", "A.", "" ], [ "Dittmaier", "S.", "" ], [ "Roth", "M.", "" ], [ "Wieders", "L. H.", "" ] ]
The complete electroweak O(alpha) corrections have been calculated for the charged-current four-fermion production processes e+e- --> nu_tau tau+ mu- anti-nu_mu, u anti-d mu- anti-nu_mu, and u anti-d s anti-c. Here, technical details of this calculation are presented. These include the algebraic reduction of spinor cha...
hep-ph/0310288
Jen-Chieh Peng
Jen-Chieh Peng
Structure Functions - Status and Prospect
11 pages, 5 figures, Invited talk at the CIPANP2003 Conference
null
10.1063/1.1664195
null
hep-ph
null
Current status and future prospect of structure function and parton distribution studies are presented.
[ { "created": "Fri, 24 Oct 2003 20:21:07 GMT", "version": "v1" } ]
2009-11-10
[ [ "Peng", "Jen-Chieh", "" ] ]
Current status and future prospect of structure function and parton distribution studies are presented.
1903.12046
Lampros Trifyllis
A. Dedes, K. Suxho and L. Trifyllis
The decay $h\to Z \gamma$ in the Standard-Model Effective Field Theory
16 pages, 1 Table. v3: matches published version
null
10.1007/JHEP06(2019)115
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the $S$-matrix element for the Higgs boson decay to a $Z$-boson and a photon, $h\to Z\gamma$, at one-loop in the Standard-Model Effective Field Theory (SMEFT) framework and in linear $R_{\xi}$-gauges. Our SMEFT expansion includes all relevant operators up to dimension-6 considered in Warsaw basis without...
[ { "created": "Thu, 28 Mar 2019 15:26:44 GMT", "version": "v1" }, { "created": "Thu, 4 Apr 2019 17:10:04 GMT", "version": "v2" }, { "created": "Fri, 21 Jun 2019 14:24:33 GMT", "version": "v3" } ]
2019-06-28
[ [ "Dedes", "A.", "" ], [ "Suxho", "K.", "" ], [ "Trifyllis", "L.", "" ] ]
We calculate the $S$-matrix element for the Higgs boson decay to a $Z$-boson and a photon, $h\to Z\gamma$, at one-loop in the Standard-Model Effective Field Theory (SMEFT) framework and in linear $R_{\xi}$-gauges. Our SMEFT expansion includes all relevant operators up to dimension-6 considered in Warsaw basis without r...
hep-ph/0212288
Armen Oganesian
M.Dey, V.L.Eletsky and B.L.Ioffe
Comment on "Vector and axial-vector mesons at finite temperature"
Typos were corrected, one reference was added, 2 pages, LaTeX 2e
null
null
null
hep-ph
null
It is shown, that the correlators of vector and axial-vector currents at finite temperature T in order T^2 reduce to mixing of vacuum VV and AA correlators with universal mixing coefficient given by the parameter \epsilon = T^2/6 F^2_{\pi}, unlike the claim in the recent paper by Mallik and Sarkar [1].
[ { "created": "Thu, 19 Dec 2002 12:58:58 GMT", "version": "v1" }, { "created": "Mon, 13 Jan 2003 14:44:05 GMT", "version": "v2" } ]
2007-05-23
[ [ "Dey", "M.", "" ], [ "Eletsky", "V. L.", "" ], [ "Ioffe", "B. L.", "" ] ]
It is shown, that the correlators of vector and axial-vector currents at finite temperature T in order T^2 reduce to mixing of vacuum VV and AA correlators with universal mixing coefficient given by the parameter \epsilon = T^2/6 F^2_{\pi}, unlike the claim in the recent paper by Mallik and Sarkar [1].
hep-ph/0108114
Gilberto Tavares Velasco
G. Tavares-Velasco and J. J. Toscano
Bilepton gauge boson contribution to the static electromagnetic properties of the W boson in the minimal 331 model
19 pages, 10 figures, REVTEX
Phys.Rev. D65 (2002) 013005
10.1103/PhysRevD.65.013005
null
hep-ph
null
We present a complete calculation of the singly and doubly charged gauge bosons (bileptons) contribution to the static properties of the W boson in the framework of the minimal 331 model, which accommodates the bileptons in an SU_L(2) doublet. A nonlinear R_\xi gauge is used and a slightly modified version of the Pas...
[ { "created": "Mon, 13 Aug 2001 20:55:56 GMT", "version": "v1" } ]
2009-11-07
[ [ "Tavares-Velasco", "G.", "" ], [ "Toscano", "J. J.", "" ] ]
We present a complete calculation of the singly and doubly charged gauge bosons (bileptons) contribution to the static properties of the W boson in the framework of the minimal 331 model, which accommodates the bileptons in an SU_L(2) doublet. A nonlinear R_\xi gauge is used and a slightly modified version of the Passa...
hep-ph/0303039
Nicos Stefanis
Alexander P. Bakulev (JINR, Dubna), S. V. Mikhailov (JINR, Dubna), N. G. Stefanis (U. of Bochum)
CLEO and E791 data: A smoking gun for the pion distribution amplitude?
11 pages, 5 figures as EPS files. 2 figures added; discussion of NNLO effects added and discussion of twist-4 uncertainties expanded; some typos corrected; physics unchanged; some references added. Matches version to appear in PLB
Phys.Lett.B578:91-98,2004
10.1016/j.physletb.2003.10.033
RUB-TPII-04/03, E2-2003-85
hep-ph
null
The CLEO experimental data on the $\pi\gamma$ transition are analyzed to next-to-leading order accuracy in QCD perturbation theory using light-cone QCD sum rules. By processing these data along the lines proposed by Schmedding and Yakovlev, and recently revised by us, we obtain new constraints for the Gegenbauer coef...
[ { "created": "Wed, 5 Mar 2003 17:40:18 GMT", "version": "v1" }, { "created": "Fri, 10 Oct 2003 10:34:20 GMT", "version": "v2" } ]
2008-11-26
[ [ "Bakulev", "Alexander P.", "", "JINR, Dubna" ], [ "Mikhailov", "S. V.", "", "JINR, Dubna" ], [ "Stefanis", "N. G.", "", "U. of Bochum" ] ]
The CLEO experimental data on the $\pi\gamma$ transition are analyzed to next-to-leading order accuracy in QCD perturbation theory using light-cone QCD sum rules. By processing these data along the lines proposed by Schmedding and Yakovlev, and recently revised by us, we obtain new constraints for the Gegenbauer coeffi...
hep-ph/0511021
Siannah Penaranda
W. Hollik, S. Penaranda and M. Vogt
Flavour changing effects on e^+ e^- -> H b \bar{s}, H \bar{b} s in the MSSM
LaTeX, 20 pages, 11 figures. Discussion and references added. Published version in Eur.Phys.J.C
Eur.Phys.J.C47:207-217,2006
10.1140/epjc/s2006-02526-6
MPP-2004-33, CERN-PH-TH/2004-072
hep-ph
null
Flavour changing effects originating from the exchange of scalar particles in the processes e^+ e^- -> H b \bar{s}, H \bar{b} s, with H = h^0, H^0, A^0, are investigated in the Minimal Supersymmetric Standard Model with non-minimal flavour violation at the one-loop level. The dominating SUSY-QCD contributions with sq...
[ { "created": "Wed, 2 Nov 2005 17:13:50 GMT", "version": "v1" }, { "created": "Fri, 20 Jul 2007 10:00:40 GMT", "version": "v2" } ]
2009-01-07
[ [ "Hollik", "W.", "" ], [ "Penaranda", "S.", "" ], [ "Vogt", "M.", "" ] ]
Flavour changing effects originating from the exchange of scalar particles in the processes e^+ e^- -> H b \bar{s}, H \bar{b} s, with H = h^0, H^0, A^0, are investigated in the Minimal Supersymmetric Standard Model with non-minimal flavour violation at the one-loop level. The dominating SUSY-QCD contributions with squa...
1409.3291
Eric S. Swanson
E.S. Swanson
$Z_b$ and $Z_c$ Exotic States as Coupled Channel Cusps
9 pages, 9 figures. Expanded discussion of previous work; expanded discussion of B decays; analysis of Zc(4025) added; additional implications added
Phys. Rev. D 91, 034009 (2015)
10.1103/PhysRevD.91.034009
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is demonstrated that the candidate tetraquark states $Z_b(10610)$, $Z_b(10650)$, $Z_c(3900)$, and $Z_c(4025)$ are coupled channel cusp effects. The model explains in a natural way the masses and quantum numbers of the putative states and the near equality of the widths of the $Z_b$ states. It is argued that the $Z...
[ { "created": "Thu, 11 Sep 2014 01:31:22 GMT", "version": "v1" }, { "created": "Tue, 28 Oct 2014 16:04:39 GMT", "version": "v2" } ]
2015-03-05
[ [ "Swanson", "E. S.", "" ] ]
It is demonstrated that the candidate tetraquark states $Z_b(10610)$, $Z_b(10650)$, $Z_c(3900)$, and $Z_c(4025)$ are coupled channel cusp effects. The model explains in a natural way the masses and quantum numbers of the putative states and the near equality of the widths of the $Z_b$ states. It is argued that the $Z_c...
1205.1051
Christian Gross
Stefan Antusch, Christian Gross, Vinzenz Maurer, Constantin Sluka
\theta^PMNS_13 = \theta_C / \sqrt2 from GUTs
v3: 18 pages, section on corrections to exact relation added
Nucl.Phys. B866 (2013) 255-269
10.1016/j.nuclphysb.2012.09.002
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The recent observations of the leptonic mixing angle \theta^PMNS_13 are consistent with \theta^PMNS_13 = \theta_C / \sqrt2 (with \theta_C being the Cabibbo angle \theta^CKM_12). We discuss how this relation can emerge in Grand Unified Theories (GUTs) via charged lepton corrections. The key ingredient is that in GUTs ...
[ { "created": "Fri, 4 May 2012 19:58:30 GMT", "version": "v1" }, { "created": "Fri, 11 May 2012 16:43:08 GMT", "version": "v2" }, { "created": "Thu, 9 Aug 2012 17:47:35 GMT", "version": "v3" } ]
2013-02-07
[ [ "Antusch", "Stefan", "" ], [ "Gross", "Christian", "" ], [ "Maurer", "Vinzenz", "" ], [ "Sluka", "Constantin", "" ] ]
The recent observations of the leptonic mixing angle \theta^PMNS_13 are consistent with \theta^PMNS_13 = \theta_C / \sqrt2 (with \theta_C being the Cabibbo angle \theta^CKM_12). We discuss how this relation can emerge in Grand Unified Theories (GUTs) via charged lepton corrections. The key ingredient is that in GUTs th...
hep-ph/0407329
Thomas Schaefer
Andrei Kryjevski (INT, Washington) and Thomas Schaefer (North Carolina State and Riken-BNL)
An Effective Theory for Baryons in the CFL Phase
12 pages, 2 figures; corrected Fig. 2; clarified eq.(23)
Phys.Lett. B606 (2005) 52-58
10.1016/j.physletb.2004.11.081
INT-PUB 04-18
hep-ph
null
We study the effective field theory for fermions in the color-flavor locked (CFL) phase of high density QCD. The effective theory contains a flavor nonet of baryons interacting with a nonet of pseudoscalar Goldstone bosons as well as a singlet scalar Goldstone boson. The theory is similar to chiral perturbation theor...
[ { "created": "Thu, 29 Jul 2004 01:02:18 GMT", "version": "v1" }, { "created": "Tue, 10 Aug 2004 23:47:32 GMT", "version": "v2" } ]
2009-11-10
[ [ "Kryjevski", "Andrei", "", "INT, Washington" ], [ "Schaefer", "Thomas", "", "North Carolina\n State and Riken-BNL" ] ]
We study the effective field theory for fermions in the color-flavor locked (CFL) phase of high density QCD. The effective theory contains a flavor nonet of baryons interacting with a nonet of pseudoscalar Goldstone bosons as well as a singlet scalar Goldstone boson. The theory is similar to chiral perturbation theory ...
hep-ph/0203228
Marek Nowakowski
Marek Nowakowski, (Universidad de Guanajuato, Mexico)
Quantum Instability for Mixed States
11 pages
Mod.Phys.Lett. A17 (2002) 2039-2048
10.1142/S0217732302008642
null
hep-ph
null
The analysis of the time evolution of unstable states which are linear superposition of other, observable, states can, in principle, be carried out in two distinct, non-equivalent ways. One of the methods, usually employed for the neutral kaon system, combines the mixing and instability into one single step which the...
[ { "created": "Sun, 24 Mar 2002 19:04:50 GMT", "version": "v1" } ]
2009-11-07
[ [ "Nowakowski", "Marek", "" ] ]
The analysis of the time evolution of unstable states which are linear superposition of other, observable, states can, in principle, be carried out in two distinct, non-equivalent ways. One of the methods, usually employed for the neutral kaon system, combines the mixing and instability into one single step which then ...
2102.06692
Antonino Di Piazza
A. Di Piazza
WKB Electron Wave Functions in a Tightly Focused Laser Beam
49 pages, no figures. Misprints corrected in Eqs. (B2) and (B3)
Phys. Rev. D 103, 076011 (2021)
10.1103/PhysRevD.103.076011
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Available laser technology is opening the possibility of testing QED experimentally in the so-called strong-field regime. This calls for developing theoretical tools to investigate strong-field QED processes in electromagnetic fields of complex spacetime structure. Here, we propose a scheme to compute electron wave f...
[ { "created": "Fri, 12 Feb 2021 18:48:53 GMT", "version": "v1" }, { "created": "Wed, 14 Apr 2021 17:09:07 GMT", "version": "v2" }, { "created": "Mon, 22 May 2023 14:42:08 GMT", "version": "v3" } ]
2023-05-23
[ [ "Di Piazza", "A.", "" ] ]
Available laser technology is opening the possibility of testing QED experimentally in the so-called strong-field regime. This calls for developing theoretical tools to investigate strong-field QED processes in electromagnetic fields of complex spacetime structure. Here, we propose a scheme to compute electron wave fun...
1701.02213
Hong-Bo Jin
Hong-Bo Jin, Yue-Liang Wu, and Yu-Feng Zhou
Astrophysical background and dark matter implication based on latest AMS-02 data
30 pages, 10 figures, 4 tables, some MCMC results are added
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The cosmic ray(CR) positrons and antiprotons are often regarded as the collision products of CR nucleons with the interstellar medium. However this conclusion is challenged by recent experimental data. In this work, we choose the latest AMS-02 data to analyze the astrophysical background of CR positrons and antiproto...
[ { "created": "Mon, 9 Jan 2017 15:31:14 GMT", "version": "v1" }, { "created": "Wed, 18 Jan 2017 14:35:35 GMT", "version": "v2" }, { "created": "Tue, 14 Nov 2017 10:34:32 GMT", "version": "v3" }, { "created": "Fri, 29 Jun 2018 23:04:47 GMT", "version": "v4" } ]
2018-07-03
[ [ "Jin", "Hong-Bo", "" ], [ "Wu", "Yue-Liang", "" ], [ "Zhou", "Yu-Feng", "" ] ]
The cosmic ray(CR) positrons and antiprotons are often regarded as the collision products of CR nucleons with the interstellar medium. However this conclusion is challenged by recent experimental data. In this work, we choose the latest AMS-02 data to analyze the astrophysical background of CR positrons and antiprotons...
hep-ph/0203126
Yukihiro Mimura
Yukihiro Mimura and S. Nandi
Orbifold Breaking of Left-Right Gauge Symmetry
13 pages, no figures, Added clarifying comments in the beginning of Section 4, corrected few minor errors, and included two additional references
Phys.Lett.B538:406-414,2002
10.1016/S0370-2693(02)02000-2
OSU-HEP-02-03
hep-ph
null
We study the five dimensional left-right symmetric gauge theory in which the gauge symmetry is broken down through orbifold compactification to four dimensions. The right handed charged gauge boson, W_R is a Kaluza-Klein excited state in this model, and unlike the usual left-right symmetric model in four dimension, t...
[ { "created": "Wed, 13 Mar 2002 23:28:09 GMT", "version": "v1" }, { "created": "Thu, 16 May 2002 19:19:47 GMT", "version": "v2" } ]
2010-11-19
[ [ "Mimura", "Yukihiro", "" ], [ "Nandi", "S.", "" ] ]
We study the five dimensional left-right symmetric gauge theory in which the gauge symmetry is broken down through orbifold compactification to four dimensions. The right handed charged gauge boson, W_R is a Kaluza-Klein excited state in this model, and unlike the usual left-right symmetric model in four dimension, the...
0910.0138
Gideon Alexander
Gideon Alexander and Erez Reinherz-Aronis
On the role of the time scale Delta t in Bose-Einstein correlations
8 pages, 5 figures
Phys.Lett.B687:310-313,2010
10.1016/j.physletb.2010.03.039
TAUP-2902-09
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The time scale $\Delta t$ parameter, which appears in the Bose-Einstein Correlations (BEC) treated in term of the Heisenberg uncertainty relations, is reexamined. Arguments are given for the role of $\Delta t$ as a measure of the particles' emission time rather than representing the strength property of the correlate...
[ { "created": "Thu, 1 Oct 2009 11:36:15 GMT", "version": "v1" }, { "created": "Mon, 28 Dec 2009 11:42:25 GMT", "version": "v2" }, { "created": "Tue, 9 Feb 2010 09:17:11 GMT", "version": "v3" }, { "created": "Sun, 21 Mar 2010 09:25:26 GMT", "version": "v4" } ]
2014-11-20
[ [ "Alexander", "Gideon", "" ], [ "Reinherz-Aronis", "Erez", "" ] ]
The time scale $\Delta t$ parameter, which appears in the Bose-Einstein Correlations (BEC) treated in term of the Heisenberg uncertainty relations, is reexamined. Arguments are given for the role of $\Delta t$ as a measure of the particles' emission time rather than representing the strength property of the correlated ...
1007.4739
Yoshio Koide
Yoshio Koide, Yukinari Sumino, Masato Yamanaka
Tests of a Family Gauge Symmetry Model at 10^3 TeV Scale
12 pages, 2 figures, title changed, minor modification, to appear in PLB
Phys.Lett.B695:279-284,2011
10.1016/j.physletb.2010.11.048
OU-HET-673/2010, MISC-2010-05, TU-871
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Based on a specific model with U(3) family gauge symmetry at $10^3$ TeV scale, we show its experimental signatures to search for. Since the gauge symmetry is introduced with a special purpose, its gauge coupling constant and gauge boson mass spectrum are not free. The current structure in this model leads to family n...
[ { "created": "Tue, 27 Jul 2010 14:43:07 GMT", "version": "v1" }, { "created": "Tue, 30 Nov 2010 03:20:41 GMT", "version": "v2" } ]
2011-06-27
[ [ "Koide", "Yoshio", "" ], [ "Sumino", "Yukinari", "" ], [ "Yamanaka", "Masato", "" ] ]
Based on a specific model with U(3) family gauge symmetry at $10^3$ TeV scale, we show its experimental signatures to search for. Since the gauge symmetry is introduced with a special purpose, its gauge coupling constant and gauge boson mass spectrum are not free. The current structure in this model leads to family num...
2102.07391
Qi-Fang L\"u
Hui-Zhen He, Wei Liang, Qi-Fang L\"u, and Yu-Bing Dong
Strong decays of the low-lying bottom strange baryons
7 pages, 3 figures. Minor modifications, accepted version
Sci.China Phys.Mech.Astron. 64 (2021) 261012
10.1007/s11433-021-1704-x
null
hep-ph hep-ex nucl-th
http://creativecommons.org/licenses/by/4.0/
In this work, the strong decay behaviors of the $\lambda-$mode low-lying $\Xi_{b}$ and $\Xi_{b}^\prime$ baryons are investigated within the $^3P_0$ model. Our results suggest that all of the low-lying $\bar 3_F$ states $\Xi_b(2S)$, $\Xi_b(1P)$, and $\Xi_b(1D)$ have small decay widths of less than 20 MeV, and these st...
[ { "created": "Mon, 15 Feb 2021 08:23:58 GMT", "version": "v1" }, { "created": "Fri, 7 May 2021 08:58:36 GMT", "version": "v2" } ]
2021-05-10
[ [ "He", "Hui-Zhen", "" ], [ "Liang", "Wei", "" ], [ "Lü", "Qi-Fang", "" ], [ "Dong", "Yu-Bing", "" ] ]
In this work, the strong decay behaviors of the $\lambda-$mode low-lying $\Xi_{b}$ and $\Xi_{b}^\prime$ baryons are investigated within the $^3P_0$ model. Our results suggest that all of the low-lying $\bar 3_F$ states $\Xi_b(2S)$, $\Xi_b(1P)$, and $\Xi_b(1D)$ have small decay widths of less than 20 MeV, and these stat...
1201.3440
Yasuhiko Tsue
Y. Tsue (Kochi Univ., Japan), C. Providencia (Univ. de Coimbra, Portugal), J. da Providencia (Univ. de Coimbra, Portugal), M. Yamamura (Kansai Univ., Japan)
Color-Singlet Three-Quark States in the su(4)-Algebraic Many-Quark Model
11 pages, 1 figure, using PTP class
Prog. Theor. Phys. 127 (2012), 769-779
10.1143/PTP.127.769
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
As announced in last paper by the present authors, the color-singlet three-quark states are investigated for the case of the spherical j-j coupling and L-S coupling shell models. The latter case automatically leads to the su(4)*su(4)-model. For a certain type of Hamiltonian, the states of individual "nucleons" are ch...
[ { "created": "Tue, 17 Jan 2012 07:07:44 GMT", "version": "v1" } ]
2012-05-03
[ [ "Tsue", "Y.", "", "Kochi Univ., Japan" ], [ "Providencia", "C.", "", "Univ. de Coimbra,\n Portugal" ], [ "da Providencia", "J.", "", "Univ. de Coimbra, Portugal" ], [ "Yamamura", "M.", "", "Kansai Univ., Japan" ] ]
As announced in last paper by the present authors, the color-singlet three-quark states are investigated for the case of the spherical j-j coupling and L-S coupling shell models. The latter case automatically leads to the su(4)*su(4)-model. For a certain type of Hamiltonian, the states of individual "nucleons" are char...
hep-ph/9809420
Valeri V. Ianovski
I.V. Kolokolov, P.V. Vorob'ev and V.V. Ianovski
Slow Magnetic Monopole: Interaction with Matter and New Possibility of Their Detection
LaTeX 23 pages, no figures. This revised version subm to Phys. Rev. D
null
null
Talk was given at XXXII PNPI Winter School, St. Petersburg, 1998
hep-ph astro-ph cond-mat.mtrl-sci hep-ex physics.ins-det
null
The possibility of existence of a magnetic monopole has been surveyed by P. Dirac even in 1931, and then from the point of view of the modern theory by A.M. Polyakov and G.~ 'tHooft in 1974. Numerous and unsuccessful attempts of experimental search for monopole in cosmic rays and on accelerators in high energy partic...
[ { "created": "Wed, 16 Sep 1998 19:35:28 GMT", "version": "v1" }, { "created": "Sun, 20 Sep 1998 06:41:12 GMT", "version": "v2" }, { "created": "Fri, 3 Dec 1999 07:34:35 GMT", "version": "v3" } ]
2007-05-23
[ [ "Kolokolov", "I. V.", "" ], [ "Vorob'ev", "P. V.", "" ], [ "Ianovski", "V. V.", "" ] ]
The possibility of existence of a magnetic monopole has been surveyed by P. Dirac even in 1931, and then from the point of view of the modern theory by A.M. Polyakov and G.~ 'tHooft in 1974. Numerous and unsuccessful attempts of experimental search for monopole in cosmic rays and on accelerators in high energy particle...
hep-ph/0104236
Jure Zupan
S. Fajfer, P. Singer, J. Zupan
The Rare Decay D^0 -> gamma gamma
16 pages, 5 figures, additional reference and several remarks added, results unchanged
Phys.Rev. D64 (2001) 074008
10.1103/PhysRevD.64.074008
null
hep-ph
null
We present a calculation of the rare decay mode D^0 -> gamma gamma, in which the long distance contributions are expected to be dominant. Using the Heavy Quark Chiral Perturbation Theory Lagrangian with a strong g coupling as recently determined by CLEO from the D^* -> D pi width, we consider both the anomaly contrib...
[ { "created": "Tue, 24 Apr 2001 07:50:21 GMT", "version": "v1" }, { "created": "Fri, 20 Jul 2001 10:58:10 GMT", "version": "v2" } ]
2009-11-07
[ [ "Fajfer", "S.", "" ], [ "Singer", "P.", "" ], [ "Zupan", "J.", "" ] ]
We present a calculation of the rare decay mode D^0 -> gamma gamma, in which the long distance contributions are expected to be dominant. Using the Heavy Quark Chiral Perturbation Theory Lagrangian with a strong g coupling as recently determined by CLEO from the D^* -> D pi width, we consider both the anomaly contribut...
hep-ph/9411396
null
Jonathan L. Rosner
Overview of the Standard Model
16 pages, LaTeX, 3 figures (submitted separately); uses world_sci.sty (appended); epsf.tex (not included). Figures now embedded and caption to Fig. 2 replaced
null
null
EFI 94-59
hep-ph
null
A brief overview is presented of the standard model of electroweak interactions, including precision tests, the role of the Cabibbo-Kobayashi-Maskawa (CKM) matrix in describing CP violation, windows on intermediate-scale physics, and the nature of the Higgs phenomenon.
[ { "created": "Fri, 25 Nov 1994 17:49:44 GMT", "version": "v1" }, { "created": "Mon, 28 Nov 1994 17:03:10 GMT", "version": "v2" } ]
2009-09-25
[ [ "Rosner", "Jonathan L.", "" ] ]
A brief overview is presented of the standard model of electroweak interactions, including precision tests, the role of the Cabibbo-Kobayashi-Maskawa (CKM) matrix in describing CP violation, windows on intermediate-scale physics, and the nature of the Higgs phenomenon.
hep-ph/0311064
Fredrick Olness
Fredrick I. Olness
Neutrino Charm Production and Implications for PDF's
6 pages, 2 figures, uses LaTeX
null
null
null
hep-ph
null
We have performed the first comprehensive global QCD analysis including the CCFR and NuTeV di-muon data; this data provides strong constraints on the strange quark PDF.
[ { "created": "Wed, 5 Nov 2003 17:33:50 GMT", "version": "v1" } ]
2007-05-23
[ [ "Olness", "Fredrick I.", "" ] ]
We have performed the first comprehensive global QCD analysis including the CCFR and NuTeV di-muon data; this data provides strong constraints on the strange quark PDF.
1203.4854
James Unwin
John March-Russell, James Unwin, Stephen M. West
Closing in on Asymmetric Dark Matter I: Model independent limits for interactions with quarks
18+6 pages, 18 figures. v2: version accepted for publication
null
10.1007/JHEP08(2012)029
OUTP-12-01P
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is argued that experimental constraints on theories of asymmetric dark matter (ADM) almost certainly require that the DM be part of a richer hidden sector of interacting states of comparable mass or lighter. A general requisite of models of ADM is that the vast majority of the symmetric component of the DM number ...
[ { "created": "Wed, 21 Mar 2012 23:13:07 GMT", "version": "v1" }, { "created": "Fri, 27 Jul 2012 19:51:04 GMT", "version": "v2" } ]
2015-06-04
[ [ "March-Russell", "John", "" ], [ "Unwin", "James", "" ], [ "West", "Stephen M.", "" ] ]
It is argued that experimental constraints on theories of asymmetric dark matter (ADM) almost certainly require that the DM be part of a richer hidden sector of interacting states of comparable mass or lighter. A general requisite of models of ADM is that the vast majority of the symmetric component of the DM number de...
1406.2570
Daniel Cabrera
Daniel Cabrera, Laura Tolos, J\"org Aichelin and Elena Bratkovskaya
Anti-strange meson-baryon interaction in hot and dense nuclear matter
33 pages, 7 figures; enhanced discussion in Sec. 3; order of presentation of results modified in Sec. 4; updated reference list; corrected typos and wording; version to match publication in Phys. Rev. C
null
10.1103/PhysRevC.90.055207
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a study of in-medium cross sections and (off-shell) transition rates for the most relevant binary reactions for strange pseudoscalar meson production close to threshold in heavy-ion collisions at FAIR energies. Our results rely on a chiral unitary approach in coupled channels which incorporates the $s$- an...
[ { "created": "Tue, 10 Jun 2014 14:36:37 GMT", "version": "v1" }, { "created": "Fri, 14 Nov 2014 16:22:06 GMT", "version": "v2" } ]
2015-06-19
[ [ "Cabrera", "Daniel", "" ], [ "Tolos", "Laura", "" ], [ "Aichelin", "Jörg", "" ], [ "Bratkovskaya", "Elena", "" ] ]
We present a study of in-medium cross sections and (off-shell) transition rates for the most relevant binary reactions for strange pseudoscalar meson production close to threshold in heavy-ion collisions at FAIR energies. Our results rely on a chiral unitary approach in coupled channels which incorporates the $s$- and ...
1302.2894
Jusak Tandean
Cheng-Wei Chiang, Takaaki Nomura, Jusak Tandean
Effects of Family Nonuniversal Z' Boson on Leptonic Decays of Higgs and Weak Bosons
17 pages, 5 figures, slightly revised, references added, matches publication
Phys. Rev. D 87, 075020 (2013)
10.1103/PhysRevD.87.075020
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Though not completely a surprise according to the standard model and existing indirect constraints, the Higgs-like particle, h, of mass around 125 GeV recently observed at the LHC may offer an additional window to physics beyond the standard model. In particular, its decay pattern can be modified by the existence of ...
[ { "created": "Tue, 12 Feb 2013 19:19:55 GMT", "version": "v1" }, { "created": "Mon, 10 Feb 2014 15:39:04 GMT", "version": "v2" } ]
2014-02-13
[ [ "Chiang", "Cheng-Wei", "" ], [ "Nomura", "Takaaki", "" ], [ "Tandean", "Jusak", "" ] ]
Though not completely a surprise according to the standard model and existing indirect constraints, the Higgs-like particle, h, of mass around 125 GeV recently observed at the LHC may offer an additional window to physics beyond the standard model. In particular, its decay pattern can be modified by the existence of ne...
hep-ph/0010065
Kayser
Boris Kayser
Neutrino Properties
LaTeX2e; 7 pp. with 2 figures
Nucl.Phys.Proc.Suppl. 91 (2000) 299-305
10.1016/S0920-5632(00)00955-5
NSF-PT-00-6
hep-ph
null
The experimental discovery that neutrinos almost certainly have masses and mix raises a number of fundamental questions about the neutrinos. We discuss what is presently known about the answers to these questions, and how we can learn more.
[ { "created": "Fri, 6 Oct 2000 22:15:49 GMT", "version": "v1" } ]
2009-10-31
[ [ "Kayser", "Boris", "" ] ]
The experimental discovery that neutrinos almost certainly have masses and mix raises a number of fundamental questions about the neutrinos. We discuss what is presently known about the answers to these questions, and how we can learn more.
hep-ph/9407310
null
Ketino Aladashvili and Murman Margvelashvili
Determination of QCD Condensates Without Hadronic Spectra
Latex file, 9 pages, 4 figures available on request from mm@infn.ferrara.it INFN-FE 07-94
Phys.Lett. B339 (1994) 263-269
10.1016/0370-2693(94)90642-4
null
hep-ph
null
The bounds on the values of gluon, four-quark and quark-gluon condensates are derived from the requirement of consistency of the sum rules for various correlators of the hybrid current $a_{\mu}=g\bar d\gamma_{\rho}\tilde G_{\rho\mu}u$. The upper bound for the gluon condensate is found to be less then twice its standa...
[ { "created": "Sat, 16 Jul 1994 22:56:19 GMT", "version": "v1" } ]
2009-10-28
[ [ "Aladashvili", "Ketino", "" ], [ "Margvelashvili", "Murman", "" ] ]
The bounds on the values of gluon, four-quark and quark-gluon condensates are derived from the requirement of consistency of the sum rules for various correlators of the hybrid current $a_{\mu}=g\bar d\gamma_{\rho}\tilde G_{\rho\mu}u$. The upper bound for the gluon condensate is found to be less then twice its standard...
1805.09727
Jan Plefka
Florian Loebbert, Julian Miczajka, Jan Plefka
Consistent Conformal Extensions of the Standard Model
20 pages, 19 figures. v2: Typo in (3.3) corrected, references added
Phys. Rev. D 99, 015026 (2019)
10.1103/PhysRevD.99.015026
HU-EP-18/16, CERN-TH-2018-125
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The question of whether classically conformal modifications of the standard model are consistent with experimental obervations has recently been subject to renewed interest. The method of Gildener and Weinberg provides a natural framework for the study of the effective potential of the resulting multi-scalar standard...
[ { "created": "Thu, 24 May 2018 15:25:35 GMT", "version": "v1" }, { "created": "Wed, 6 Jun 2018 08:14:48 GMT", "version": "v2" } ]
2019-01-30
[ [ "Loebbert", "Florian", "" ], [ "Miczajka", "Julian", "" ], [ "Plefka", "Jan", "" ] ]
The question of whether classically conformal modifications of the standard model are consistent with experimental obervations has recently been subject to renewed interest. The method of Gildener and Weinberg provides a natural framework for the study of the effective potential of the resulting multi-scalar standard m...
1512.06909
Hamza Berrehrah
Hamza Berrehrah, Wolfgang Cassing, Elena Bratkovskaya, Thorsten Steinert
The quark susceptibility in a generalized dynamical quasiparticle model
12 pages, 11 figures
Phys. Rev. C 93, 044914 (2016)
10.1103/PhysRevC.93.044914
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The quark susceptibility $\chi_q$ at zero and finite quark chemical potential provides a critical benchmark to determine the quark-gluon-plasma (QGP) degrees of freedom in relation to the results from lattice QCD (lQCD) in addition to the equation of state and transport coefficients. Here we extend the familiar dynam...
[ { "created": "Mon, 21 Dec 2015 23:40:11 GMT", "version": "v1" } ]
2016-05-04
[ [ "Berrehrah", "Hamza", "" ], [ "Cassing", "Wolfgang", "" ], [ "Bratkovskaya", "Elena", "" ], [ "Steinert", "Thorsten", "" ] ]
The quark susceptibility $\chi_q$ at zero and finite quark chemical potential provides a critical benchmark to determine the quark-gluon-plasma (QGP) degrees of freedom in relation to the results from lattice QCD (lQCD) in addition to the equation of state and transport coefficients. Here we extend the familiar dynamic...
0810.5756
Michael Seymour
Michael H. Seymour (1 and 2) and Malin Sjodahl (1) ((1) University of Manchester, (2) CERN)
Symmetry of anomalous dimension matrices explained
4 pages
JHEP 0812:066,2008
10.1088/1126-6708/2008/12/066
MAN/HEP/2008/39, CERN-TH/2008-211
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In a previous paper, one of us pointed out that the anomalous dimension matrices for all physical processes that have been calculated to date are complex symmetric, if stated in an orthonormal basis. In this paper we prove this fact and show that it is only true in a subset of all possible orthonormal bases, but that...
[ { "created": "Fri, 31 Oct 2008 18:38:46 GMT", "version": "v1" }, { "created": "Mon, 3 Nov 2008 18:10:55 GMT", "version": "v2" } ]
2009-01-27
[ [ "Seymour", "Michael H.", "", "1 and 2" ], [ "Sjodahl", "Malin", "" ] ]
In a previous paper, one of us pointed out that the anomalous dimension matrices for all physical processes that have been calculated to date are complex symmetric, if stated in an orthonormal basis. In this paper we prove this fact and show that it is only true in a subset of all possible orthonormal bases, but that t...
1912.10053
Sayipjamal Dulat
Tie-Jiun Hou, Jun Gao, T. J. Hobbs, Keping Xie, Sayipjamal Dulat, Marco Guzzi, Joey Huston, Pavel Nadolsky, Jon Pumplin, Carl Schmidt, Ibrahim Sitiwaldi, Daniel Stump, C.-P. Yuan
New CTEQ global analysis of quantum chromodynamics with high-precision data from the LHC
106 pages + 10 pages supplemental material, 88 figures and 13 tables; discussions expanded with additional results and references
Phys. Rev. D 103, 014013 (2021)
10.1103/PhysRevD.103.014013
MSUHEP-19-025, PITT-PACC-1911, SMU-HEP-19-03
hep-ph hep-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present the new parton distribution functions (PDFs) from the CTEQ-TEA collaboration, obtained using a wide variety of high-precision Large Hadron Collider (LHC) data, in addition to the combined HERA I+II deep-inelastic scattering data set, along with the data sets present in the CT14 global QCD analysis. New LHC...
[ { "created": "Fri, 20 Dec 2019 19:00:05 GMT", "version": "v1" }, { "created": "Sat, 22 Feb 2020 02:00:01 GMT", "version": "v2" }, { "created": "Fri, 13 Nov 2020 09:43:03 GMT", "version": "v3" } ]
2021-01-20
[ [ "Hou", "Tie-Jiun", "" ], [ "Gao", "Jun", "" ], [ "Hobbs", "T. J.", "" ], [ "Xie", "Keping", "" ], [ "Dulat", "Sayipjamal", "" ], [ "Guzzi", "Marco", "" ], [ "Huston", "Joey", "" ], [ "Nadolsky", ...
We present the new parton distribution functions (PDFs) from the CTEQ-TEA collaboration, obtained using a wide variety of high-precision Large Hadron Collider (LHC) data, in addition to the combined HERA I+II deep-inelastic scattering data set, along with the data sets present in the CT14 global QCD analysis. New LHC m...
1307.5205
Jeremie Quevillon
A. Djouadi, L. Maiani, G. Moreau, A. Polosa, J. Quevillon, V. Riquer
The post-Higgs MSSM scenario: Habemus MSSM?
1+12 pages, pdflatex, 7 figures
Eur. Phys. J. C 73 (2013) 2650
10.1140/epjc/s10052-013-2650-0
LPT-ORSAY-13-56
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze the Minimal Supersymmetric extension of the Standard Model that we have after the discovery of the Higgs boson at the LHC, the hMSSM (habemus MSSM?), i.e. a model in which the lighter $h$ boson has a mass of approximately 125 GeV which, together with the non-observation of superparticles at the LHC, indica...
[ { "created": "Fri, 19 Jul 2013 12:54:23 GMT", "version": "v1" } ]
2014-05-12
[ [ "Djouadi", "A.", "" ], [ "Maiani", "L.", "" ], [ "Moreau", "G.", "" ], [ "Polosa", "A.", "" ], [ "Quevillon", "J.", "" ], [ "Riquer", "V.", "" ] ]
We analyze the Minimal Supersymmetric extension of the Standard Model that we have after the discovery of the Higgs boson at the LHC, the hMSSM (habemus MSSM?), i.e. a model in which the lighter $h$ boson has a mass of approximately 125 GeV which, together with the non-observation of superparticles at the LHC, indicate...
hep-ph/9612388
Laura Reina
David Atwood (CEBAF), Laura Reina (BNL) and Amarjit Soni (BNL)
Signals from Flavor Changing Scalar Currents at the Future Colliders
5 pages, 2 EPS figures, requires Latex2e, snow2e.cls (included) and graphics.sty
null
null
BNL-63704
hep-ph
null
We present a general phenomenological analysis of a class of Two Higgs Doublet Models with Flavor Changing Neutral Currents arising at the tree level. The existing constraints mainly affect the couplings of the first two generations of quarks, leaving the possibility for non negligible Flavor Changing couplings of th...
[ { "created": "Tue, 17 Dec 1996 17:37:01 GMT", "version": "v1" } ]
2007-05-23
[ [ "Atwood", "David", "", "CEBAF" ], [ "Reina", "Laura", "", "BNL" ], [ "Soni", "Amarjit", "", "BNL" ] ]
We present a general phenomenological analysis of a class of Two Higgs Doublet Models with Flavor Changing Neutral Currents arising at the tree level. The existing constraints mainly affect the couplings of the first two generations of quarks, leaving the possibility for non negligible Flavor Changing couplings of the ...
2002.12269
Marc Bergevin
M. Bergevin
Reinterpreting Neutrino Oscillations
9 pages, 5 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This letter proposes an alternative quantum mechanical picture for the observed phenomena of neutrino oscillations. It is assumed in the following that neutrinos interact via diabatic (or localised) interactions with a new particle field, which changes their flavor. Furthermore, it is assumed that each neutrino flavo...
[ { "created": "Thu, 27 Feb 2020 17:17:31 GMT", "version": "v1" }, { "created": "Thu, 17 Dec 2020 17:31:03 GMT", "version": "v2" } ]
2020-12-18
[ [ "Bergevin", "M.", "" ] ]
This letter proposes an alternative quantum mechanical picture for the observed phenomena of neutrino oscillations. It is assumed in the following that neutrinos interact via diabatic (or localised) interactions with a new particle field, which changes their flavor. Furthermore, it is assumed that each neutrino flavor ...
0705.4559
Alessandro Strumia
Yuji Kajiyama, Martti Raidal and Alessandro Strumia
The golden ratio prediction for the solar neutrino mixing
5 pages. Final version, to appear on PRD
Phys.Rev.D76:117301,2007
10.1103/PhysRevD.76.117301
IFUP-TH/11-2007
hep-ph
null
We present a simple texture that predicts the cotangent of the solar neutrino mixing angle to be equal to the golden ratio. This prediction is 1.4 standard deviations below the present best-fit value and final SNO and KamLAND data could discriminate it from tri-bi-maximal mixing. The neutrino mass matrix is invariant...
[ { "created": "Thu, 31 May 2007 10:17:59 GMT", "version": "v1" }, { "created": "Wed, 28 Nov 2007 08:06:11 GMT", "version": "v2" } ]
2008-11-26
[ [ "Kajiyama", "Yuji", "" ], [ "Raidal", "Martti", "" ], [ "Strumia", "Alessandro", "" ] ]
We present a simple texture that predicts the cotangent of the solar neutrino mixing angle to be equal to the golden ratio. This prediction is 1.4 standard deviations below the present best-fit value and final SNO and KamLAND data could discriminate it from tri-bi-maximal mixing. The neutrino mass matrix is invariant u...
hep-ph/9708385
Arkadii A. Kozhevnikov
A.A. Kozhevnikov (Laboratory of Theoretical Physics, S.L. Sobolev Institute for Mathematics)
Decay of Z-string due to the fermion emission
19 pages, revtex, no figures
null
null
null
hep-ph
null
The question of classical topological stability of the gauge vortex defects is reanalyzed upon taking into account the quantum perturbative effects. The purely Abelian Higgs string remains stable while the coupling of the effectively Abelian Z-string (with the fixed zero upper component of the scalar doublet) to the ...
[ { "created": "Mon, 18 Aug 1997 13:54:28 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kozhevnikov", "A. A.", "", "Laboratory of Theoretical Physics, S.L. Sobolev\n Institute for Mathematics" ] ]
The question of classical topological stability of the gauge vortex defects is reanalyzed upon taking into account the quantum perturbative effects. The purely Abelian Higgs string remains stable while the coupling of the effectively Abelian Z-string (with the fixed zero upper component of the scalar doublet) to the fe...
1607.01287
Tareq Alhalholy Dr
Tareq Alhalholy and Matthias Burkardt
Transverse Target Single Spin Asymmetry in Elastic e-{\p} Scattering
null
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Using the Coulomb Eikonal Phase associated with a transversely polarized nucleon, we calculate the azimuthal single spin asymmetry of unpolarized electrons elastically scattered from a transversely polarized nucleon target. The azimuthal asymmetry in this case is attributed to the fact that in a transversely polarize...
[ { "created": "Sat, 2 Jul 2016 00:09:09 GMT", "version": "v1" } ]
2016-07-06
[ [ "Alhalholy", "Tareq", "" ], [ "Burkardt", "Matthias", "" ] ]
Using the Coulomb Eikonal Phase associated with a transversely polarized nucleon, we calculate the azimuthal single spin asymmetry of unpolarized electrons elastically scattered from a transversely polarized nucleon target. The azimuthal asymmetry in this case is attributed to the fact that in a transversely polarized ...
hep-ph/0412251
Sven Heinemeyer
CLIC Physics Working Group: E. Accomando, A. Aranda, E. Ateser, C. Balazs, D. Bardin, T. Barklow, M. Battaglia, W. Beenakker, S. Berge, G. Blair, E. Boos, F. Boudjema, H. Braun, P. Burikham, H. Burkhardt, M. Cacciari, O. Cakir, A. Ciftci, R. Ciftci, B. Cox, C. Da Via, A. Datta, S. De Curtis, A. De Roeck, M. Die...
Physics at the CLIC Multi-TeV Linear Collider
226 pages, lots of figures. A version with high resolution figures can be found at http://cern.ch/d/deroeck/www/clic/clic_report.html
null
null
CERN-2004-005
hep-ph
null
This report summarizes a study of the physics potential of the CLIC e+e- linear collider operating at centre-of-mass energies from 1 TeV to 5 TeV with luminosity of the order of 10^35 cm^-2 s^-1. First, the CLIC collider complex is surveyed, with emphasis on aspects related to its physics capabilities, particularly t...
[ { "created": "Fri, 17 Dec 2004 14:05:11 GMT", "version": "v1" } ]
2009-09-29
[ [ "CLIC Physics Working Group", "", "" ], [ "Accomando", "E.", "" ], [ "Aranda", "A.", "" ], [ "Ateser", "E.", "" ], [ "Balazs", "C.", "" ], [ "Bardin", "D.", "" ], [ "Barklow", "T.", "" ], [ "Battagl...
This report summarizes a study of the physics potential of the CLIC e+e- linear collider operating at centre-of-mass energies from 1 TeV to 5 TeV with luminosity of the order of 10^35 cm^-2 s^-1. First, the CLIC collider complex is surveyed, with emphasis on aspects related to its physics capabilities, particularly the...
1902.10148
Javier Rubio
Javier Rubio and Eemeli S. Tomberg
Preheating in Palatini Higgs inflation
21 pages, 6 figures
null
10.1088/1475-7516/2019/04/021
null
hep-ph astro-ph.CO gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the details of preheating in Palatini Higgs inflation. We show, that contrary to what happens in the metric formulation of the model, the Universe does not reheat through the creation of gauge bosons only, but also through the tachyonic production of Higgs excitations. The latest entropy production channel t...
[ { "created": "Tue, 26 Feb 2019 19:00:02 GMT", "version": "v1" } ]
2019-04-17
[ [ "Rubio", "Javier", "" ], [ "Tomberg", "Eemeli S.", "" ] ]
We study the details of preheating in Palatini Higgs inflation. We show, that contrary to what happens in the metric formulation of the model, the Universe does not reheat through the creation of gauge bosons only, but also through the tachyonic production of Higgs excitations. The latest entropy production channel tur...
1206.4870
Peter Kroll
Peter Kroll and Kornelija Passek-Kumericki
The eta (eta') gamma transition form factor and the gluon-gluon distribution amplitude
28 pages, 13 figures, the paper is shortened, the references are updated and the title changed
null
10.1088/0954-3899/40/7/075005
WU B 12-01
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The eta-gamma and eta'-gamma transition form factors are analyzed to leading-twist accuracy and next-to-leading order (NLO) of perturbative QCD. Using an eta-eta' mixing scheme and all currently available experimental data the lowest Gegenbauer coefficients of the distribution amplitudes for the valence octet and sin...
[ { "created": "Thu, 21 Jun 2012 13:26:54 GMT", "version": "v1" }, { "created": "Tue, 18 Jun 2013 10:42:24 GMT", "version": "v2" } ]
2015-06-05
[ [ "Kroll", "Peter", "" ], [ "Passek-Kumericki", "Kornelija", "" ] ]
The eta-gamma and eta'-gamma transition form factors are analyzed to leading-twist accuracy and next-to-leading order (NLO) of perturbative QCD. Using an eta-eta' mixing scheme and all currently available experimental data the lowest Gegenbauer coefficients of the distribution amplitudes for the valence octet and singl...
hep-ph/0509358
David A. Kosower
Darren Forde and David A. Kosower
All-Multiplicity One-Loop Corrections to MHV Amplitudes in QCD
5 pages; corrected typos, minor text addition; final Phys Rev version
Phys.Rev. D73 (2006) 061701
10.1103/PhysRevD.73.061701
Saclay/SPhT-T05/149
hep-ph hep-th
null
We compute the complete one-loop corrections to the simplest class of QCD gluon amplitudes, those with two color-adjacent opposite-helicity external particles. We present results for an arbitrary number of external legs. The computation uses the recently-developed on-shell recursion relations for the rational parts, ...
[ { "created": "Thu, 29 Sep 2005 19:54:01 GMT", "version": "v1" }, { "created": "Fri, 21 Apr 2006 16:08:43 GMT", "version": "v2" } ]
2009-11-11
[ [ "Forde", "Darren", "" ], [ "Kosower", "David A.", "" ] ]
We compute the complete one-loop corrections to the simplest class of QCD gluon amplitudes, those with two color-adjacent opposite-helicity external particles. We present results for an arbitrary number of external legs. The computation uses the recently-developed on-shell recursion relations for the rational parts, al...
2309.01311
Bernat Capdevila
Bernat Capdevila, Andreas Crivellin, Joaquim Matias
Review of Semileptonic $B$ Anomalies
Invited review for EPJST. 24 pages, 5 figures. Incorporated a footnote on page 3, introducing the newly included Ref. [33]. Additionally, added a note following the acknowledgments section on a newly released experimental analysis
Eur. Phys. J. Spec. Top. (2023) 1-20
10.1140/epjs/s11734-023-01012-2
PSI-PR-23-33, ZU-TH 50/23
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
We review the current status and implications of the anomalies (i.e. deviations from the Standard Model predictions) in semi-leptonic $B$ meson decays, both in the charged and in the neutral current. In $b\to s\ell^+\ell^-$ transitions significant tensions between measurements and the Standard Model predictions exist...
[ { "created": "Mon, 4 Sep 2023 01:54:20 GMT", "version": "v1" }, { "created": "Thu, 16 Nov 2023 03:32:22 GMT", "version": "v2" } ]
2023-12-25
[ [ "Capdevila", "Bernat", "" ], [ "Crivellin", "Andreas", "" ], [ "Matias", "Joaquim", "" ] ]
We review the current status and implications of the anomalies (i.e. deviations from the Standard Model predictions) in semi-leptonic $B$ meson decays, both in the charged and in the neutral current. In $b\to s\ell^+\ell^-$ transitions significant tensions between measurements and the Standard Model predictions exist. ...
hep-ph/9803343
D. I. Melikhov
D. Melikhov, N. Nikitin, and S. Simula
Lepton asymmetries in exclusive $b \to s\ell^+\ell^-$ decays as a test of the Standard Model
revtex, 9 pages, 5 figures
Phys.Lett. B430 (1998) 332-340
10.1016/S0370-2693(98)00524-3
null
hep-ph
null
We argue that the longitudinal lepton polarization and the forward-backward asymmetries in exclusive $B\to (K,K^*)\ell^+\ell^-$ decays are largely unaffected by the theoretical uncertainties in the long-distance contributions both induced by the long-range charming penguins in the $\ell^+\ell^-$ channel and those in ...
[ { "created": "Fri, 13 Mar 1998 15:12:24 GMT", "version": "v1" } ]
2009-10-31
[ [ "Melikhov", "D.", "" ], [ "Nikitin", "N.", "" ], [ "Simula", "S.", "" ] ]
We argue that the longitudinal lepton polarization and the forward-backward asymmetries in exclusive $B\to (K,K^*)\ell^+\ell^-$ decays are largely unaffected by the theoretical uncertainties in the long-distance contributions both induced by the long-range charming penguins in the $\ell^+\ell^-$ channel and those in th...
1601.05223
Raghunath Sahoo
Dhananjaya Thakur, Sushanta Tripathy, Prakhar Garg, Raghunath Sahoo, and Jean Cleymans
Indication of a Differential Freeze-out in Proton-Proton and Heavy-Ion Collisions at RHIC and LHC energies
Version equivalent to that published in Adv. in High. Eng. Physics
null
null
null
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The experimental data from the RHIC and LHC experiments of invariant pT spectra in A+A and p + p collisions are analysed with Tsallis distributions in different approaches. The information about the freeze-out surface in terms of freeze-out volume, temperature, chemical potential and radial flow velocity for differen...
[ { "created": "Wed, 20 Jan 2016 10:11:00 GMT", "version": "v1" }, { "created": "Mon, 21 Nov 2016 10:25:44 GMT", "version": "v2" } ]
2016-11-22
[ [ "Thakur", "Dhananjaya", "" ], [ "Tripathy", "Sushanta", "" ], [ "Garg", "Prakhar", "" ], [ "Sahoo", "Raghunath", "" ], [ "Cleymans", "Jean", "" ] ]
The experimental data from the RHIC and LHC experiments of invariant pT spectra in A+A and p + p collisions are analysed with Tsallis distributions in different approaches. The information about the freeze-out surface in terms of freeze-out volume, temperature, chemical potential and radial flow velocity for different ...
hep-ph/0101337
Nikolay Kochelev
N.I. Kochelev and V.Vento
Instantons and the $\Delta I=1/2 $ Rule
4 pages, 2 figures, Revtex; final version to appear in Phys.Rev.Lett
Phys.Rev.Lett. 87 (2001) 111601
10.1103/PhysRevLett.87.111601
null
hep-ph
null
The instanton induced interaction leads to a significant enhancement of the $A_0$ weak amplitude determining the $\Delta I=1/2$ rule, through the contribution of operators with dimension d=9, as we show in the weak $K\to \pi\pi$ decay.
[ { "created": "Tue, 30 Jan 2001 17:29:03 GMT", "version": "v1" }, { "created": "Fri, 27 Jul 2001 13:39:54 GMT", "version": "v2" } ]
2009-11-07
[ [ "Kochelev", "N. I.", "" ], [ "Vento", "V.", "" ] ]
The instanton induced interaction leads to a significant enhancement of the $A_0$ weak amplitude determining the $\Delta I=1/2$ rule, through the contribution of operators with dimension d=9, as we show in the weak $K\to \pi\pi$ decay.
1212.6386
Vassilis Spanos
Nick E. Mavromatos and Vassilis C. Spanos
On Gravitino properties in a Conformal Supergravity Model
7 pages latex, two eps figures incorporated
null
10.1103/PhysRevD.87.035025
KCL-PH-TH/2013-01; LCTS/2012-34
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the context of a conformal Supergravity (SUGRA) model in the Einstein frame, in which the (next to) minimal supersymmetric standard model can embedded naturally to produce chaotic inflation scenarios, we study properties of gravitino in the cases where it is stable or unstable. In the latter case, we demonstrate t...
[ { "created": "Thu, 27 Dec 2012 15:43:24 GMT", "version": "v1" } ]
2015-06-12
[ [ "Mavromatos", "Nick E.", "" ], [ "Spanos", "Vassilis C.", "" ] ]
In the context of a conformal Supergravity (SUGRA) model in the Einstein frame, in which the (next to) minimal supersymmetric standard model can embedded naturally to produce chaotic inflation scenarios, we study properties of gravitino in the cases where it is stable or unstable. In the latter case, we demonstrate tha...
1801.00301
Edward Shuryak
Edward Shuryak
Comments on the nucleon spin composition and diquark correlations
null
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss possible relation between recent lattice results on the flavor composition of the nucleon spin and the topology-induced quark correlations.
[ { "created": "Sun, 31 Dec 2017 15:18:28 GMT", "version": "v1" } ]
2018-01-03
[ [ "Shuryak", "Edward", "" ] ]
We discuss possible relation between recent lattice results on the flavor composition of the nucleon spin and the topology-induced quark correlations.
1304.4154
Alexander Rothkopf
Yannis Burnier and Alexander Rothkopf
A hard thermal loop benchmark for the extraction of the nonperturbative $Q\bar{Q}$ potential
18 pages, 15 figures
null
10.1103/PhysRevD.87.114019
null
hep-ph hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The extraction of the finite temperature heavy quark potential from lattice QCD relies on a spectral analysis of the Wilson loop. General arguments tell us that the lowest lying spectral peak encodes, through its position and shape, the real and imaginary part of this complex potential. Here we benchmark this extract...
[ { "created": "Mon, 15 Apr 2013 16:24:45 GMT", "version": "v1" } ]
2013-08-09
[ [ "Burnier", "Yannis", "" ], [ "Rothkopf", "Alexander", "" ] ]
The extraction of the finite temperature heavy quark potential from lattice QCD relies on a spectral analysis of the Wilson loop. General arguments tell us that the lowest lying spectral peak encodes, through its position and shape, the real and imaginary part of this complex potential. Here we benchmark this extractio...
hep-ph/0412238
Abdelhak Djouadi
Abdelhak Djouadi
Phenomenology of SM and SUSY Higgs bosons at the LHC
20 pages, 15 figures, talk at "Physics at the LHC", Vienna, July 2004
Czech.J.Phys. 55 (2005) B23-B44
null
LPT-04-133
hep-ph
null
I briefly review the physics of the Higgs sector in the Standard Model (SM) and its supersymmetric extension, in particular the MSSM, and discuss the prospects for discovering the Higgs particles at the Large Hadron Collider. Some emphasis will be put on the theoretical developments which occurred in the last few yea...
[ { "created": "Thu, 16 Dec 2004 16:28:13 GMT", "version": "v1" } ]
2007-05-23
[ [ "Djouadi", "Abdelhak", "" ] ]
I briefly review the physics of the Higgs sector in the Standard Model (SM) and its supersymmetric extension, in particular the MSSM, and discuss the prospects for discovering the Higgs particles at the Large Hadron Collider. Some emphasis will be put on the theoretical developments which occurred in the last few years...
1203.3020
Antonio Vairo
Nora Brambilla, Piotr Pietrulewicz, Antonio Vairo
Model-independent Study of Electric Dipole Transitions in Quarkonium
42 pages, 9 figures
Phys. Rev. D 85, 094005 (2012)
10.1103/PhysRevD.85.094005
TUM-EFT 25/11
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The paper contains a systematic, model-independent treatment of electric dipole (E1) transitions in heavy quarkonium. Within the effective field theory framework of potential non-relativistic QCD (pNRQCD), we derive the complete set of relativistic corrections of relative order v^2 both for weakly and strongly-couple...
[ { "created": "Wed, 14 Mar 2012 08:47:59 GMT", "version": "v1" } ]
2012-05-09
[ [ "Brambilla", "Nora", "" ], [ "Pietrulewicz", "Piotr", "" ], [ "Vairo", "Antonio", "" ] ]
The paper contains a systematic, model-independent treatment of electric dipole (E1) transitions in heavy quarkonium. Within the effective field theory framework of potential non-relativistic QCD (pNRQCD), we derive the complete set of relativistic corrections of relative order v^2 both for weakly and strongly-coupled ...
2208.02076
Leonardo Vernazza
Leonardo Vernazza
Threshold resummation of quark-gluon partonic channels at next-to-leading power
Contribution to the Proceedings of "Loops and Legs in Quantum Field Theory - LL2022", 25-30 April, 2022, Ettal, Germany
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We discuss recent progress concerning the resummation of large logarithms at next-to-leading power (NLP) in scattering processes near threshold. We begin by briefly reviewing the diagrammatic and SCET approach, which are used to derive factorization theorems for physical observables in this kinematic limit. Then, we ...
[ { "created": "Wed, 3 Aug 2022 13:56:34 GMT", "version": "v1" } ]
2022-08-04
[ [ "Vernazza", "Leonardo", "" ] ]
We discuss recent progress concerning the resummation of large logarithms at next-to-leading power (NLP) in scattering processes near threshold. We begin by briefly reviewing the diagrammatic and SCET approach, which are used to derive factorization theorems for physical observables in this kinematic limit. Then, we fo...
1806.06864
Vedran Brdar
Sven Baumholzer, Vedran Brdar, Pedro Schwaller
The New $\nu$MSM : Radiative Neutrino Masses, keV-Scale Dark Matter and Viable Leptogenesis with sub-TeV New Physics
28 pages, 9 figures
JHEP 1808 (2018) 067
10.1007/JHEP08(2018)067
MITP/18-050
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the scenario in which the Standard model is augmented by three generations of right-handed neutrinos and a scalar doublet. The newly introduced fields share an odd charge under a $\mathbb{Z}_2$ parity symmetry. This model, commonly known as "Scotogenic", was designed to provide a mechanism for active neutrin...
[ { "created": "Mon, 18 Jun 2018 18:00:04 GMT", "version": "v1" }, { "created": "Thu, 28 Jun 2018 09:21:50 GMT", "version": "v2" } ]
2018-09-27
[ [ "Baumholzer", "Sven", "" ], [ "Brdar", "Vedran", "" ], [ "Schwaller", "Pedro", "" ] ]
We study the scenario in which the Standard model is augmented by three generations of right-handed neutrinos and a scalar doublet. The newly introduced fields share an odd charge under a $\mathbb{Z}_2$ parity symmetry. This model, commonly known as "Scotogenic", was designed to provide a mechanism for active neutrino ...