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0811.2839
Yoshio Koide
Yoshio Koide and Hiroyuki Nishiura
Maximal CP Violation Hypothesis and a Lepton Mixing Matrix
10 pages, 4 figure, version in Phys.Rev.D
Phys.Rev.D79:093005,2009
10.1103/PhysRevD.79.093005
OU-HET 629/2009
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Maximal CP violation hypothesis is applied to a simple lepton mixing matrix form U=V_{CKM}^\dagger U_{TB}, which has recently been speculated under an ansatz that U becomes an exact tribimaximal mixing U_{TB} in a limit of the quark mixing matrix V_{CKM} \to {\bf 1}. The prediction \tan^2 \theta_{12} =1/2 in the case...
[ { "created": "Tue, 18 Nov 2008 05:41:59 GMT", "version": "v1" }, { "created": "Tue, 25 Nov 2008 05:59:44 GMT", "version": "v2" }, { "created": "Thu, 30 Apr 2009 09:30:35 GMT", "version": "v3" } ]
2010-04-28
[ [ "Koide", "Yoshio", "" ], [ "Nishiura", "Hiroyuki", "" ] ]
Maximal CP violation hypothesis is applied to a simple lepton mixing matrix form U=V_{CKM}^\dagger U_{TB}, which has recently been speculated under an ansatz that U becomes an exact tribimaximal mixing U_{TB} in a limit of the quark mixing matrix V_{CKM} \to {\bf 1}. The prediction \tan^2 \theta_{12} =1/2 in the case o...
hep-ph/9507337
V. Belyaev
V. M. Belyaev and A. V. Radyushkin
Quark-Hadron Duality and $\gamma^* p \to \Delta$ Form Factors
15 pages, LaTeX + 4 PS-figures enclosed in one uuencoded, compressed file
Phys.Lett.B359:194-200,1995
10.1016/0370-2693(95)01048-U
CEBAF-TH-95-11
hep-ph
null
We use local quark-hadron duality to estimate the purely nonperturbative soft contribution to the $\gamma^*p\to \Delta$ form factors. Our results are in agreement with existing experimental data. We predict that the ratio $G_E^*(Q^2)/G_M^*(Q^2)$ is small for all accessible $Q^2$, in contrast to the pQCD expectations ...
[ { "created": "Tue, 18 Jul 1995 23:42:40 GMT", "version": "v1" } ]
2014-11-17
[ [ "Belyaev", "V. M.", "" ], [ "Radyushkin", "A. V.", "" ] ]
We use local quark-hadron duality to estimate the purely nonperturbative soft contribution to the $\gamma^*p\to \Delta$ form factors. Our results are in agreement with existing experimental data. We predict that the ratio $G_E^*(Q^2)/G_M^*(Q^2)$ is small for all accessible $Q^2$, in contrast to the pQCD expectations th...
1008.4345
Ian Clo\"et
Ian C. Cloet and Gerald A. Miller
Third Zemach Moment of the Proton
3 pages, three figures
Phys.Rev.C83:012201,2011
10.1103/PhysRevC.83.012201
null
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Modern electron scattering experiments have determined the proton electric form factor, G_{Ep}(Q^2), to high precision. We utilize this data, represented by the different form factor parametrizations, to compute the third Zemach moment of the proton charge distribution. We find that existing data rule out a value of ...
[ { "created": "Wed, 25 Aug 2010 19:29:22 GMT", "version": "v1" }, { "created": "Tue, 31 Aug 2010 16:30:23 GMT", "version": "v2" }, { "created": "Thu, 9 Sep 2010 00:06:55 GMT", "version": "v3" } ]
2011-02-28
[ [ "Cloet", "Ian C.", "" ], [ "Miller", "Gerald A.", "" ] ]
Modern electron scattering experiments have determined the proton electric form factor, G_{Ep}(Q^2), to high precision. We utilize this data, represented by the different form factor parametrizations, to compute the third Zemach moment of the proton charge distribution. We find that existing data rule out a value of th...
1611.04297
Bernard Pire
B. Pire, K. Semenov-Tian-Shansky, L. Szymanowski
Baryon-to-meson transition distribution amplitudes: formalism and models
8 pages, to be published in the proceedings of the the Light Cone 2016 Conference, Lisbon, Portugal, September 5 - 8, 2016
null
10.1007/s00601-017-1244-z
null
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In specific kinematics, hard exclusive amplitudes may be factorized into a short distance dominated part computable in a perturbative way on the one hand, and universal, confinement related hadronic matrix elements on the other hand. The extension of this description to processes such as backward meson electroproduct...
[ { "created": "Mon, 14 Nov 2016 09:39:17 GMT", "version": "v1" } ]
2017-03-08
[ [ "Pire", "B.", "" ], [ "Semenov-Tian-Shansky", "K.", "" ], [ "Szymanowski", "L.", "" ] ]
In specific kinematics, hard exclusive amplitudes may be factorized into a short distance dominated part computable in a perturbative way on the one hand, and universal, confinement related hadronic matrix elements on the other hand. The extension of this description to processes such as backward meson electroproductio...
0712.0780
Arlene Cristina Aguilar
A. C. Aguilar, J. Papavassiliou
Infrared finite ghost propagator in the Feynman gauge
22 pages, 9 figures
Phys.Rev.D77:125022,2008
10.1103/PhysRevD.77.125022
null
hep-ph
null
We demonstrate how to obtain from the Schwinger-Dyson equations of QCD an infrared finite ghost propagator in the Feynman gauge. The key ingredient in this construction is the longitudinal form factor of the non-perturbative gluon-ghost vertex, which, contrary to what happens in the Landau gauge, contributes non-triv...
[ { "created": "Wed, 5 Dec 2007 17:02:19 GMT", "version": "v1" } ]
2008-11-26
[ [ "Aguilar", "A. C.", "" ], [ "Papavassiliou", "J.", "" ] ]
We demonstrate how to obtain from the Schwinger-Dyson equations of QCD an infrared finite ghost propagator in the Feynman gauge. The key ingredient in this construction is the longitudinal form factor of the non-perturbative gluon-ghost vertex, which, contrary to what happens in the Landau gauge, contributes non-trivia...
hep-ph/0205297
Dr Rukmani Mohanta
R. Mohanta
Searching for New Physics in the rare decay B^+ \to D_s^+ \phi
LaTex, 12 pages
Phys.Lett.B540:241-246,2002
10.1016/S0370-2693(02)02173-1
null
hep-ph
null
The rare decay $B^+ \to D_s^+ \phi $ can occur only via annihilation type diagram in the standard model. The small branching ratio predicted in the standard model makes this channel sensitive to new physics contributions. We analyze this decay mode, both in the standard model and in several extensions of it. The mode...
[ { "created": "Mon, 27 May 2002 03:01:56 GMT", "version": "v1" } ]
2011-03-23
[ [ "Mohanta", "R.", "" ] ]
The rare decay $B^+ \to D_s^+ \phi $ can occur only via annihilation type diagram in the standard model. The small branching ratio predicted in the standard model makes this channel sensitive to new physics contributions. We analyze this decay mode, both in the standard model and in several extensions of it. The models...
hep-ph/0005200
Berezhnoy Alexander V.
A.V. Berezhnoy, A.K. Likhoded
The contribution of the hadronic component of the photon into the $D^*$-meson photoproduction at HERA
12 pages, LATEX file, 5 ps-figures; changed LATEX style; estimated the model uncertainty
null
null
null
hep-ph
null
In the framework of the vector dominance model (VDM) new contribution into the cross-section of $D^*$-meson photoproduction at HERA has been estimated. This contribution is due to the interaction of the virtual vector $c\bar c$-mesons from photon with the proton. It has been shown that the mechanism under discussion ...
[ { "created": "Fri, 19 May 2000 11:43:58 GMT", "version": "v1" }, { "created": "Mon, 22 May 2000 14:02:34 GMT", "version": "v2" }, { "created": "Wed, 28 Jun 2000 12:15:34 GMT", "version": "v3" } ]
2007-05-23
[ [ "Berezhnoy", "A. V.", "" ], [ "Likhoded", "A. K.", "" ] ]
In the framework of the vector dominance model (VDM) new contribution into the cross-section of $D^*$-meson photoproduction at HERA has been estimated. This contribution is due to the interaction of the virtual vector $c\bar c$-mesons from photon with the proton. It has been shown that the mechanism under discussion pl...
2312.13125
Joon-Bin Lee
Joon-Bin Lee, M.R. Masouminia, Michael H. Seymour, Un-ki Yang
Generalized angular-order parton showers in Herwig 7
null
J. High Energ. Phys. 08 (2024) 064
null
IPPP/23/73, MCnet-23-21
hep-ph
http://creativecommons.org/publicdomain/zero/1.0/
This paper presents the inaugural investigation of beyond the Standard Model (BSM) radiation processes, framed as a generalized, process- and model-independent parton shower algorithm within Herwig 7, based on direct translations of Universal FeynRules Output (UFO) constructed via Herwig's ufo2herwig module. Leveragi...
[ { "created": "Wed, 20 Dec 2023 15:44:45 GMT", "version": "v1" }, { "created": "Fri, 9 Aug 2024 22:38:38 GMT", "version": "v2" } ]
2024-08-14
[ [ "Lee", "Joon-Bin", "" ], [ "Masouminia", "M. R.", "" ], [ "Seymour", "Michael H.", "" ], [ "Yang", "Un-ki", "" ] ]
This paper presents the inaugural investigation of beyond the Standard Model (BSM) radiation processes, framed as a generalized, process- and model-independent parton shower algorithm within Herwig 7, based on direct translations of Universal FeynRules Output (UFO) constructed via Herwig's ufo2herwig module. Leveraging...
1401.0276
Sabine Hossenfelder
Sabine Hossenfelder
Theory and Phenomenology of Spacetime Defects
Summary of arXiv:1309.0311 and arXiv:1309.0314. Prepared for the AHEP Special Issue on "Experimental Tests of Quantum Gravity and Exotic Quantum Field Theory Effects"
null
10.1155/2014/950672
null
hep-ph gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Whether or not space-time is fundamentally discrete is of central importance for the development of the theory of quantum gravity. If the fundamental description of space-time is discrete, typically represented in terms of a graph or network, then the apparent smoothness of geometry on large scales should be imperfec...
[ { "created": "Wed, 1 Jan 2014 11:41:19 GMT", "version": "v1" } ]
2014-03-24
[ [ "Hossenfelder", "Sabine", "" ] ]
Whether or not space-time is fundamentally discrete is of central importance for the development of the theory of quantum gravity. If the fundamental description of space-time is discrete, typically represented in terms of a graph or network, then the apparent smoothness of geometry on large scales should be imperfect ...
1107.0715
Marco Farina
Marco Farina, Duccio Pappadopulo, Alessandro Strumia, Tomer Volansky
Can CoGeNT and DAMA Modulations Be Due to Dark Matter?
30 pages, 14 figures. v2: error corrected, some figures changed, references added. Final version, to appear on JCAP
null
10.1088/1475-7516/2011/11/010
null
hep-ph astro-ph.CO astro-ph.HE hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore the dark matter interpretation of the anomalies claimed by the DAMA and CoGeNT experiments, in conjunction with the various null direct-detection experiments. An independent analysis of the CoGeNT data is employed and several experimental and astrophysical uncertainties are considered. Various phenomenolog...
[ { "created": "Mon, 4 Jul 2011 19:55:34 GMT", "version": "v1" }, { "created": "Thu, 27 Oct 2011 14:10:00 GMT", "version": "v2" } ]
2015-05-28
[ [ "Farina", "Marco", "" ], [ "Pappadopulo", "Duccio", "" ], [ "Strumia", "Alessandro", "" ], [ "Volansky", "Tomer", "" ] ]
We explore the dark matter interpretation of the anomalies claimed by the DAMA and CoGeNT experiments, in conjunction with the various null direct-detection experiments. An independent analysis of the CoGeNT data is employed and several experimental and astrophysical uncertainties are considered. Various phenomenologic...
1311.2072
Juan Gonzalez-Fraile
C\'edric Delaunay, Thomas Flacke, J. Gonzalez-Fraile, Seung J. Lee, Giuliano Panico, Gilad Perez
Light Non-degenerate Composite Partners at the LHC
49 pages, 18 figures
null
10.1007/JHEP02(2014)055
CERN-PH-TH/2013-259, LAPTh-064/13
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the implications of a large degree of compositeness for the light generation quarks in composite pseudo-Nambu-Goldstone-boson Higgs models. We focus in particular on viable scenarios where the right-handed up-type quarks have a sizable mixing with the strong dynamics. For concreteness we assume the latter to...
[ { "created": "Fri, 8 Nov 2013 21:00:01 GMT", "version": "v1" } ]
2015-06-17
[ [ "Delaunay", "Cédric", "" ], [ "Flacke", "Thomas", "" ], [ "Gonzalez-Fraile", "J.", "" ], [ "Lee", "Seung J.", "" ], [ "Panico", "Giuliano", "" ], [ "Perez", "Gilad", "" ] ]
We study the implications of a large degree of compositeness for the light generation quarks in composite pseudo-Nambu-Goldstone-boson Higgs models. We focus in particular on viable scenarios where the right-handed up-type quarks have a sizable mixing with the strong dynamics. For concreteness we assume the latter to b...
2001.02961
Zhi-Gang Wang
Zhi-Gang Wang
Analysis of the $\Omega_b(6316)$, $\Omega_b(6330)$, $\Omega_b(6340)$ and $\Omega_b(6350)$ with QCD sum rules
9 pages, 4 figures
Int. J. Mod. Phys. A35 (2020) 2050043
10.1142/S0217751X20500438
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this article, we introduce an explicit P-wave to construct three-quark currents to study the P-wave $\Omega_b$ states with the full QCD sum rules. The predicted masses have a hierarchy if the same parameters are chosen and favor assigning the $\Omega_b(6316)$, $\Omega_b(6330)$, $\Omega_b(6340)$ and $\Omega_b(6350)...
[ { "created": "Thu, 9 Jan 2020 13:15:34 GMT", "version": "v1" }, { "created": "Mon, 9 Mar 2020 07:24:27 GMT", "version": "v2" } ]
2020-04-15
[ [ "Wang", "Zhi-Gang", "" ] ]
In this article, we introduce an explicit P-wave to construct three-quark currents to study the P-wave $\Omega_b$ states with the full QCD sum rules. The predicted masses have a hierarchy if the same parameters are chosen and favor assigning the $\Omega_b(6316)$, $\Omega_b(6330)$, $\Omega_b(6340)$ and $\Omega_b(6350)$ ...
1108.2694
Ricardo Gonzalez Felipe
R. Gonzalez Felipe
Neutrinos and the matter-antimatter asymmetry in the Universe
8 pages, 1 table, 1 figure; Based on talk given at the Symposium STARS2011, 1 - 4 May 2011, Havana, Cuba; to be published in the Proceedings
null
10.1142/S0218301311040074
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The discovery of neutrino oscillations provides a solid evidence for nonzero neutrino masses and leptonic mixing. The fact that neutrino masses are so tiny constitutes a puzzling problem in particle physics. From the theoretical viewpoint, the smallness of neutrino masses can be elegantly explained through the seesaw...
[ { "created": "Fri, 12 Aug 2011 19:38:17 GMT", "version": "v1" } ]
2015-05-30
[ [ "Felipe", "R. Gonzalez", "" ] ]
The discovery of neutrino oscillations provides a solid evidence for nonzero neutrino masses and leptonic mixing. The fact that neutrino masses are so tiny constitutes a puzzling problem in particle physics. From the theoretical viewpoint, the smallness of neutrino masses can be elegantly explained through the seesaw m...
hep-ph/9806525
Tetsuya Shiromizu
Tetsuya Shiromizu
Generation of Magnetic Field due to Excited Q-Balls
6 pages, LaTex, to appear in Phys.Rev.D
Phys.Rev. D58 (1998) 107301
10.1103/PhysRevD.58.107301
DAMTP/R/98/25, UTAP-192
hep-ph astro-ph
null
We investigate phase transitions due to excited Q-balls. As excited Q-balls have angular momentum, a magnetic field can be generated if one considers gauged Q-balls. Based on the course of the phase transition we estimate the strength of the magnetic field and then we find that it might be the origin of observed magn...
[ { "created": "Tue, 30 Jun 1998 09:48:57 GMT", "version": "v1" } ]
2009-10-31
[ [ "Shiromizu", "Tetsuya", "" ] ]
We investigate phase transitions due to excited Q-balls. As excited Q-balls have angular momentum, a magnetic field can be generated if one considers gauged Q-balls. Based on the course of the phase transition we estimate the strength of the magnetic field and then we find that it might be the origin of observed magnet...
hep-ph/9805412
null
Hongying Jin and X.M. Zhang
Scalar Glueball Decay Into Pions In Effective Theory
10 pages, latex, 3 ps figures
null
null
null
hep-ph
null
We examine the mixing between the sigma meson $\sigma$ and the "pure" glueball field $H$ and study the decays of the scalar glueball candidate $f_0(1500)$ (a linear combination of $\sigma$ and $H$) into two and four pions in effective linear sigma model. From recent experimental data on $f_0(1500)$ decay to pions we ...
[ { "created": "Thu, 21 May 1998 14:44:38 GMT", "version": "v1" } ]
2007-05-23
[ [ "Jin", "Hongying", "" ], [ "Zhang", "X. M.", "" ] ]
We examine the mixing between the sigma meson $\sigma$ and the "pure" glueball field $H$ and study the decays of the scalar glueball candidate $f_0(1500)$ (a linear combination of $\sigma$ and $H$) into two and four pions in effective linear sigma model. From recent experimental data on $f_0(1500)$ decay to pions we po...
1206.5701
K. S. Babu
K. S. Babu and R. N. Mohapatra
Coupling Unification, GUT-Scale Baryogenesis and Neutron-Antineutron Oscillation in SO(10)
15 pages, 4 eps figures, references added, to appear in Phys. Lett. B
null
10.1016/j.physletb.2012.08.006
OSU-HEP-12-06; UMD-PP-012-009
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show that unification of the three gauge couplings can be realized consistently in a class of non-supersymmetric SO(10) models with a one-step breaking to the Standard Model if a color-sextet scalar field survives down to the TeV scale. Such scalars, which should be accessible to the LHC for direct detection, aris...
[ { "created": "Mon, 25 Jun 2012 15:07:21 GMT", "version": "v1" }, { "created": "Mon, 20 Aug 2012 18:32:46 GMT", "version": "v2" } ]
2015-06-05
[ [ "Babu", "K. S.", "" ], [ "Mohapatra", "R. N.", "" ] ]
We show that unification of the three gauge couplings can be realized consistently in a class of non-supersymmetric SO(10) models with a one-step breaking to the Standard Model if a color-sextet scalar field survives down to the TeV scale. Such scalars, which should be accessible to the LHC for direct detection, arise ...
1808.09014
Nikolaos Kidonakis
Matthew Forslund and Nikolaos Kidonakis
Associated production of a top quark with a photon via anomalous couplings
11 pages, 6 figures; published version
Phys. Rev. D 98, 074017 (2018)
10.1103/PhysRevD.98.074017
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the associated production of a top quark with a photon via anomalous $t$-$q$-$\gamma$ couplings, and present higher-order corrections from soft-gluon emission for the processes $gq \rightarrow t\gamma$ at LHC energies. We perform soft-gluon resummation at next-to-leading-logarithm accuracy and derive appro...
[ { "created": "Mon, 27 Aug 2018 19:48:49 GMT", "version": "v1" }, { "created": "Thu, 18 Oct 2018 19:39:55 GMT", "version": "v2" } ]
2018-10-24
[ [ "Forslund", "Matthew", "" ], [ "Kidonakis", "Nikolaos", "" ] ]
We discuss the associated production of a top quark with a photon via anomalous $t$-$q$-$\gamma$ couplings, and present higher-order corrections from soft-gluon emission for the processes $gq \rightarrow t\gamma$ at LHC energies. We perform soft-gluon resummation at next-to-leading-logarithm accuracy and derive approxi...
1512.05731
Tuhin Subhra Mukherjee
Shrihari Gopalakrishna, Tuhin Subhra Mukherjee, Soumya Sadhukhan
Status and Prospects of the Two-Higgs-Doublet SU(6)/Sp(6) little-Higgs Model and the Alignment Limit
21 pages, 11 figures, Comments added
Phys. Rev. D 94, 015034 (2016)
10.1103/PhysRevD.94.015034
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study in detail the little-Higgs model proposed by Low, Skiba and Smith with an SU(6)/Sp(6) group structure. The effective theory at the TeV scale is a two-Higgs doublet model (2HDM) with additional heavy vector-like fermions and vector-bosons. We identify a set of independent input parameters and develop expressi...
[ { "created": "Thu, 17 Dec 2015 19:29:49 GMT", "version": "v1" }, { "created": "Mon, 1 Aug 2016 21:41:41 GMT", "version": "v2" } ]
2016-08-03
[ [ "Gopalakrishna", "Shrihari", "" ], [ "Mukherjee", "Tuhin Subhra", "" ], [ "Sadhukhan", "Soumya", "" ] ]
We study in detail the little-Higgs model proposed by Low, Skiba and Smith with an SU(6)/Sp(6) group structure. The effective theory at the TeV scale is a two-Higgs doublet model (2HDM) with additional heavy vector-like fermions and vector-bosons. We identify a set of independent input parameters and develop expression...
1611.05270
Cem Salih Un
Ali Cici, Zerrin Kirca and Cem Salih Un
Light Stops and Fine-Tuning in MSSM
null
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the fine-tuning issue within the MSSM framework. Following the idea that the fine-tuning can measure effects of some missing mechanism, we impose non-universal gaugino masses at the GUT scalem and explore the low scale implications. We realize that the fine-tuning parametrized with Delta_EW can be as low a...
[ { "created": "Wed, 16 Nov 2016 13:33:10 GMT", "version": "v1" }, { "created": "Thu, 17 Nov 2016 13:22:18 GMT", "version": "v2" }, { "created": "Mon, 31 Jul 2017 19:05:55 GMT", "version": "v3" } ]
2017-08-02
[ [ "Cici", "Ali", "" ], [ "Kirca", "Zerrin", "" ], [ "Un", "Cem Salih", "" ] ]
We discuss the fine-tuning issue within the MSSM framework. Following the idea that the fine-tuning can measure effects of some missing mechanism, we impose non-universal gaugino masses at the GUT scalem and explore the low scale implications. We realize that the fine-tuning parametrized with Delta_EW can be as low as ...
hep-ph/0109275
Francesco Villante
G. Fiorentini, F.L. Villante and B. Ricci
A few comments after the charged current measurement at the Sudbury Neutrino Observatory
13 pages, 2 figures. Based on the talks given by G.Fiorentini and F.L.Villante at the NO-VE Workshop, Venice, Italy, 24-26 July 2001. To be published in the proceedings
null
null
null
hep-ph astro-ph
null
The comparison of the SNO charged current result with the solar neutrino signal measured by Super-Kamiokande has provided, for the first time, the evidence of a non electron flavour active neutrino component in the solar flux. We remark here that this evidence can be obtained in a model independent way, i.e. without ...
[ { "created": "Fri, 28 Sep 2001 18:33:46 GMT", "version": "v1" } ]
2007-05-23
[ [ "Fiorentini", "G.", "" ], [ "Villante", "F. L.", "" ], [ "Ricci", "B.", "" ] ]
The comparison of the SNO charged current result with the solar neutrino signal measured by Super-Kamiokande has provided, for the first time, the evidence of a non electron flavour active neutrino component in the solar flux. We remark here that this evidence can be obtained in a model independent way, i.e. without an...
1511.09461
Giuseppe Ruoso
Giuseppe Ruoso, Augusto Lombardi, Antonello Ortolan, Ruggero Pengo, Caterina Braggio, Giovanni Carugno, Carmelo Sebastiano Gallo, Clive C. Speake
The QUAX proposal: a search of galactic axion with magnetic materials
5 pages, Contribution for the proceedings of the TAUP2015, International Conference on Topics in Astroparticle and Underground Physics, 7-11 September 2015, Torino, Italy
null
10.1088/1742-6596/718/4/042051
null
hep-ph physics.ins-det
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Aim of the QUAX (QUaerere AXion) proposal is to exploit the interaction of cosmological axions with the spin of electrons in a magnetized sample. Their effect is equivalent to the application of an oscillating rf field with frequency and amplitude which are fixed by axion mass and coupling constant, respectively. The...
[ { "created": "Mon, 30 Nov 2015 20:38:55 GMT", "version": "v1" } ]
2016-06-22
[ [ "Ruoso", "Giuseppe", "" ], [ "Lombardi", "Augusto", "" ], [ "Ortolan", "Antonello", "" ], [ "Pengo", "Ruggero", "" ], [ "Braggio", "Caterina", "" ], [ "Carugno", "Giovanni", "" ], [ "Gallo", "Carmelo Sebastiano...
Aim of the QUAX (QUaerere AXion) proposal is to exploit the interaction of cosmological axions with the spin of electrons in a magnetized sample. Their effect is equivalent to the application of an oscillating rf field with frequency and amplitude which are fixed by axion mass and coupling constant, respectively. The r...
hep-ph/0408301
Chris Korthals Altes
C.P. Korthals Altes
Dilute monopole gas, magnetic screening and k-tensions in hot gluodynamics
13 pages, talk given at Workshop on Continuous Advances in QCD 2004, Minneapolis, Minnesota, 13-16 May 2004
null
10.1142/9789812702326_0036
null
hep-ph
null
An adjoint multiplet of screened monopoles forming a dilute gas fits very well lattice data at high $T$. There are now seven ratios for k-strings available, checking within a few percent with the prediction $k(N-k)$. The diluteness turns out to be a small parameter for SU(N) gluodynamics, to a good approximation ($1\...
[ { "created": "Thu, 26 Aug 2004 13:02:58 GMT", "version": "v1" } ]
2017-08-23
[ [ "Altes", "C. P. Korthals", "" ] ]
An adjoint multiplet of screened monopoles forming a dilute gas fits very well lattice data at high $T$. There are now seven ratios for k-strings available, checking within a few percent with the prediction $k(N-k)$. The diluteness turns out to be a small parameter for SU(N) gluodynamics, to a good approximation ($1\ov...
1510.08738
Miguel Sanchis
Miguel-Angel Sanchis-Lozano, Edward K. Sarkisyan-Grinbaum and Salvador Moreno-Picot
Searching for hidden sector in multiparticle production at the LHC
13 pages, 7 figures
null
10.1016/j.physletb.2016.01.038
IFIC/15-83, FTUV-15-1028
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the impact of a hidden sector beyond the Standard Model, e.g. a Hidden Valley model, on factorial moments and cumulants of multiplicity distributions in multiparticle production with a special emphasis on the prospects for LHC results.
[ { "created": "Thu, 29 Oct 2015 15:27:54 GMT", "version": "v1" }, { "created": "Thu, 14 Jan 2016 16:14:01 GMT", "version": "v2" } ]
2016-01-27
[ [ "Sanchis-Lozano", "Miguel-Angel", "" ], [ "Sarkisyan-Grinbaum", "Edward K.", "" ], [ "Moreno-Picot", "Salvador", "" ] ]
We study the impact of a hidden sector beyond the Standard Model, e.g. a Hidden Valley model, on factorial moments and cumulants of multiplicity distributions in multiparticle production with a special emphasis on the prospects for LHC results.
hep-ph/9605352
Thomas G. Rizzo
Thomas G. Rizzo
The Polarization Asymmetry and Triple Gauge Boson Couplings in $\gamma e$ Collisions at the NLC
8 pages plus figures, gzipped compressed postscript file
null
null
SLAC-PUB-7155
hep-ph
null
We examine the capability of the NLC in the $\gamma e$ collider mode to probe the CP-conserving $\gamma WW$ and $\gamma ZZ$ anomalous couplings through the use of the polarization asymmetry. When combined with other measurements, very strong constraints on both varieties of anomalous couplings can be obtained. [To ap...
[ { "created": "Mon, 20 May 1996 02:29:57 GMT", "version": "v1" } ]
2007-05-23
[ [ "Rizzo", "Thomas G.", "" ] ]
We examine the capability of the NLC in the $\gamma e$ collider mode to probe the CP-conserving $\gamma WW$ and $\gamma ZZ$ anomalous couplings through the use of the polarization asymmetry. When combined with other measurements, very strong constraints on both varieties of anomalous couplings can be obtained. [To appe...
2403.02147
Selcuk Bilmis
T.M.Aliev, S.Bilmis, M.Savci
QCD Sum Rule study of $J^P = 1^\pm$ exotic states with two heavy quarks in the molecular picture
To be published in Chinese Physics C
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
In this study, the spectroscopic parameters of the exotic molecular states composed of mesons containing two heavy quarks (scalar-axial and pseudoscalar-axial meson combinations) are investigated within QCD sum rules. Our findings reveal that the molecular states containing charm quarks do not form bound states, wher...
[ { "created": "Mon, 4 Mar 2024 15:57:05 GMT", "version": "v1" } ]
2024-03-05
[ [ "Aliev", "T. M.", "" ], [ "Bilmis", "S.", "" ], [ "Savci", "M.", "" ] ]
In this study, the spectroscopic parameters of the exotic molecular states composed of mesons containing two heavy quarks (scalar-axial and pseudoscalar-axial meson combinations) are investigated within QCD sum rules. Our findings reveal that the molecular states containing charm quarks do not form bound states, wherea...
1910.06025
Ajay Kumar Rai
Raghav Chaturvedi and Ajay Kumar Rai
Charmonium spectroscopy motivated by general features of pNRQCD
17 pages, 4 figures (Suggestions and comments are invited)
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Mass spectrum of charmonium is computed in the framework of potential non-relativistic quantum chromodynamics. \textit{O}$(1/m)$ and \textit{O}$(1/m^2)$ relativistic corrections to the Cornell potential and spin-dependent potential have been added, and is solved numerically. New experimentally observed and modified p...
[ { "created": "Mon, 14 Oct 2019 10:23:55 GMT", "version": "v1" } ]
2020-10-29
[ [ "Chaturvedi", "Raghav", "" ], [ "Rai", "Ajay Kumar", "" ] ]
Mass spectrum of charmonium is computed in the framework of potential non-relativistic quantum chromodynamics. \textit{O}$(1/m)$ and \textit{O}$(1/m^2)$ relativistic corrections to the Cornell potential and spin-dependent potential have been added, and is solved numerically. New experimentally observed and modified pos...
2312.10236
Jo\~ao Barata
Jo\~ao Barata, Jean-Paul Blaizot, Yacine Mehtar-Tani
Quantum to classical parton evolution in the QGP
4 pages, Proceedings of Quark Matter 2023
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We study the time evolution of the density matrix of a high energy quark in the presence of a dense QCD background that is modeled as a stochastic Gaussian color field. At late times, we find that only the color singlet component of the quark's reduced density matrix survives the in-medium evolution and that the dens...
[ { "created": "Fri, 15 Dec 2023 22:08:44 GMT", "version": "v1" } ]
2023-12-19
[ [ "Barata", "João", "" ], [ "Blaizot", "Jean-Paul", "" ], [ "Mehtar-Tani", "Yacine", "" ] ]
We study the time evolution of the density matrix of a high energy quark in the presence of a dense QCD background that is modeled as a stochastic Gaussian color field. At late times, we find that only the color singlet component of the quark's reduced density matrix survives the in-medium evolution and that the densit...
1901.04126
Yun-Hua Chen
Yun-Hua Chen
Chromopolarizability of charmonium and $\pi\pi$ final state interaction revisited
8 pages, 1 figure
Advances in High Energy Physics, Volume 2019, Article ID 7650678
10.1155/2019/7650678
null
hep-ph hep-ex hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The chromopolarizability of a quarknonium describes the quarknonium's interaction with soft gluonic fields and can be measured in the heavy quarkonium decays. Within the framework of dispersion theory which consider the $\pi\pi$ final state interaction (FSI) model-independently, we analyze the transition $\psi^\prime...
[ { "created": "Mon, 14 Jan 2019 04:38:34 GMT", "version": "v1" }, { "created": "Thu, 17 Jan 2019 14:24:01 GMT", "version": "v2" }, { "created": "Thu, 7 Mar 2019 13:42:28 GMT", "version": "v3" }, { "created": "Thu, 2 May 2019 16:11:32 GMT", "version": "v4" } ]
2019-05-03
[ [ "Chen", "Yun-Hua", "" ] ]
The chromopolarizability of a quarknonium describes the quarknonium's interaction with soft gluonic fields and can be measured in the heavy quarkonium decays. Within the framework of dispersion theory which consider the $\pi\pi$ final state interaction (FSI) model-independently, we analyze the transition $\psi^\prime\t...
hep-ph/9610223
Paul Mackenzie
Brian J. Gough, George M. Hockney, Aida X. El-Khadra, Andreas S. Kronfeld, Paul B. Mackenzie, Bart P. Mertens, Tetsuya Onogi, and James N. Simone
The Light Quark Masses from Lattice Gauge Theory
4 pages, two embedded figures
Phys.Rev.Lett.79:1622-1625,1997
10.1103/PhysRevLett.79.1622
Fermilab Pub-96-283, Illinois ILL-TH-96-07, Hiroshima HUPD-961
hep-ph
null
We investigate the masses of the light quarks with lattice QCD. We show that most of the large dependence on the lattice spacing, a, observed in previous determinations using Wilson fermions is removed with the use of an O(a) corrected action. In the quenched approximation, we obtain for the strange quark MS bar mass...
[ { "created": "Wed, 2 Oct 1996 22:01:25 GMT", "version": "v1" } ]
2008-11-26
[ [ "Gough", "Brian J.", "" ], [ "Hockney", "George M.", "" ], [ "El-Khadra", "Aida X.", "" ], [ "Kronfeld", "Andreas S.", "" ], [ "Mackenzie", "Paul B.", "" ], [ "Mertens", "Bart P.", "" ], [ "Onogi", "Tetsuya", ...
We investigate the masses of the light quarks with lattice QCD. We show that most of the large dependence on the lattice spacing, a, observed in previous determinations using Wilson fermions is removed with the use of an O(a) corrected action. In the quenched approximation, we obtain for the strange quark MS bar mass m...
hep-ph/0509371
Stefano Forte
Stefano Forte
Progress in Small x Resummation
8 pages, 6 figures, LaTeX with IJMPA document class, invited plenary talk at the conference on QCD and hadronic physics, Beijing 2005
Int.J.Mod.Phys. A21 (2006) 769-776
10.1142/S0217751X06032010
IFUM-847/FT
hep-ph
null
I review recent theoretical progress in the resummation of small x contributions to the evolution of parton distributions, in view of its potential significance for accurate phenomenology at future colliders. I show that a consistent perturbative resummation of collinear and energy logs is now possible, and necessary...
[ { "created": "Fri, 30 Sep 2005 16:38:59 GMT", "version": "v1" } ]
2016-09-06
[ [ "Forte", "Stefano", "" ] ]
I review recent theoretical progress in the resummation of small x contributions to the evolution of parton distributions, in view of its potential significance for accurate phenomenology at future colliders. I show that a consistent perturbative resummation of collinear and energy logs is now possible, and necessary i...
0911.4091
Dmitry Borisyuk
Dmitry Borisyuk
Proton charge and magnetic rms radii from the elastic $ep$ scattering data
6 pages, 4 figures. Numbers slightly changed due to discovered error in minimization program. Sec.III revised, discussion of G_E behaviour added.
Nucl.Phys.A843:59-67,2010
10.1016/j.nuclphysa.2010.05.054
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The elastic electron-proton scattering data are analysed in order to determine proton charge and magnetic rms radii, r_E and r_M. Along with the usual statistical error, we try to estimate a systematic error in the radii, caused by the inadequacy of particular form factor parameterization employed. The range of data ...
[ { "created": "Fri, 20 Nov 2009 20:26:03 GMT", "version": "v1" }, { "created": "Mon, 26 Apr 2010 20:39:43 GMT", "version": "v2" } ]
2014-11-20
[ [ "Borisyuk", "Dmitry", "" ] ]
The elastic electron-proton scattering data are analysed in order to determine proton charge and magnetic rms radii, r_E and r_M. Along with the usual statistical error, we try to estimate a systematic error in the radii, caused by the inadequacy of particular form factor parameterization employed. The range of data to...
2405.18017
Di Zhang
Di Zhang
Threshold Effects on the Massless Neutrino in the Canonical Seesaw Mechanism
8 pages, 3 figures
null
null
TUM-HEP 1512/24
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, we revisit the one-loop renormalization group equations (RGEs) among non-degenerate seesaw scales, i.e., threshold effects in the canonical seesaw mechanism, which have been obtained for more than two decades. We find some contributions from the Weinberg operator to its Wilson coefficient, the neutrino ...
[ { "created": "Tue, 28 May 2024 09:59:08 GMT", "version": "v1" } ]
2024-05-29
[ [ "Zhang", "Di", "" ] ]
In this work, we revisit the one-loop renormalization group equations (RGEs) among non-degenerate seesaw scales, i.e., threshold effects in the canonical seesaw mechanism, which have been obtained for more than two decades. We find some contributions from the Weinberg operator to its Wilson coefficient, the neutrino Yu...
2210.05703
Xabier Marcano
Fabiola Fortuna, Alejandro Ibarra, Xabier Marcano, Marcela Mar\'in, Pablo Roig
Indirect upper limits on $\ell_i\to\ell_j\gamma\gamma$ from $\ell_i\to\ell_j\gamma$
5 pages, 3 figures
Phys. Rev. D 107, 2023, 015027
10.1103/PhysRevD.107.015027
TUM-HEP 1422/22, IFT-UAM/CSIC-22-124
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
We perform an effective field theory analysis to correlate the charged lepton flavor violating processes $\ell_i\to\ell_j\gamma\gamma$ and $\ell_i\to\ell_j\gamma$. Using the current upper bounds on the rate for $\ell_i\to\ell_j\gamma$, we derive model-independent upper limits on the rates for $\ell_i\to\ell_j\gamma\g...
[ { "created": "Tue, 11 Oct 2022 18:05:55 GMT", "version": "v1" } ]
2023-01-31
[ [ "Fortuna", "Fabiola", "" ], [ "Ibarra", "Alejandro", "" ], [ "Marcano", "Xabier", "" ], [ "Marín", "Marcela", "" ], [ "Roig", "Pablo", "" ] ]
We perform an effective field theory analysis to correlate the charged lepton flavor violating processes $\ell_i\to\ell_j\gamma\gamma$ and $\ell_i\to\ell_j\gamma$. Using the current upper bounds on the rate for $\ell_i\to\ell_j\gamma$, we derive model-independent upper limits on the rates for $\ell_i\to\ell_j\gamma\gam...
1712.02202
J\'er\^ome Charles
J\'er\^ome Charles, David Greynat, Eduardo de Rafael
The Mellin-Barnes Approach to Hadronic Vacuum Polarization and $g_{\mu}-2$
37 pages, many figures. V2: Numerical results updated according to arXiv:1802.02995v1. V3: Published version with improvements suggested by the referee, conclusions unchanged
Phys. Rev. D 97, 076014 (2018)
10.1103/PhysRevD.97.076014
null
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is shown that with a precise determination of a few derivatives of the hadronic vacuum polarization (HVP) self-energy function $\Pi(Q^2)$ at $Q^2=0$, from lattice QCD (LQCD) or from a dedicated low-energy experiment, one can obtain an evaluation of the lowest order HVP contribution to the anomalous magnetic moment...
[ { "created": "Wed, 6 Dec 2017 14:38:21 GMT", "version": "v1" }, { "created": "Tue, 20 Feb 2018 14:51:29 GMT", "version": "v2" }, { "created": "Wed, 9 May 2018 10:10:02 GMT", "version": "v3" } ]
2018-05-16
[ [ "Charles", "Jérôme", "" ], [ "Greynat", "David", "" ], [ "de Rafael", "Eduardo", "" ] ]
It is shown that with a precise determination of a few derivatives of the hadronic vacuum polarization (HVP) self-energy function $\Pi(Q^2)$ at $Q^2=0$, from lattice QCD (LQCD) or from a dedicated low-energy experiment, one can obtain an evaluation of the lowest order HVP contribution to the anomalous magnetic moment o...
hep-ph/0305072
Ulrich Jentschura
Ulrich D. Jentschura
Extrapolation of the Zalpha-Expansion and Two--Loop Bound--State Energy Shifts
10 pages, LaTeX, Phys. Lett. B, in press
Phys.Lett. B564 (2003) 225-230
10.1016/S0370-2693(03)00562-8
null
hep-ph
null
Quantum electrodynamic (QED) effects that shift the binding energies of hydrogenic energy levels have been expressed in terms of a semi-analytic expansion in powers of Zalpha and ln[(Zalpha)^{-2}], where Z is the nuclear charge number and alpha is the fine-structure constant. For many QED effects, numerical data are ...
[ { "created": "Wed, 7 May 2003 13:29:10 GMT", "version": "v1" } ]
2009-11-10
[ [ "Jentschura", "Ulrich D.", "" ] ]
Quantum electrodynamic (QED) effects that shift the binding energies of hydrogenic energy levels have been expressed in terms of a semi-analytic expansion in powers of Zalpha and ln[(Zalpha)^{-2}], where Z is the nuclear charge number and alpha is the fine-structure constant. For many QED effects, numerical data are av...
0804.2858
Federico Urban
Federico R. Urban
On the Brane Cosmology of KK Gravitinos
To appear in the Proceedings of the XXXVI ITEP Winter School 2008, Session ``Particle Physics'', held in Otradnoe, Moscow Region, Russia, February 8--16, 2008
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this report I consider the cosmology of KK gravitinos in models with extra dimensions, in particular in connection with the known non--standard high energy regime of expansion which is associated with them. The main result is that the production of such KK modes, once one considers BBN constraints on the allowed e...
[ { "created": "Thu, 17 Apr 2008 17:17:37 GMT", "version": "v1" } ]
2008-04-18
[ [ "Urban", "Federico R.", "" ] ]
In this report I consider the cosmology of KK gravitinos in models with extra dimensions, in particular in connection with the known non--standard high energy regime of expansion which is associated with them. The main result is that the production of such KK modes, once one considers BBN constraints on the allowed ent...
1807.07823
Salvatore Marco Giampaolo
A. Capolupo, S. M. Giampaolo, G. Lambiase
Decoherence in neutrino oscillations, neutrino nature and CPT violation
7 pages, 3 figures
null
10.1016/j.physletb.2019.03.062
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze many aspects of the phenomenon of the decoherence for neutrinos propagating in long baseline experiments. We show that, in the presence of an off-diagonal term in the dissipative matrix, the Majorana neutrino can violate the CP T symmetry, which, on the contrary, is preserved for Dirac neutrinos. We show t...
[ { "created": "Fri, 20 Jul 2018 13:03:59 GMT", "version": "v1" }, { "created": "Tue, 11 Sep 2018 11:35:27 GMT", "version": "v2" } ]
2019-05-22
[ [ "Capolupo", "A.", "" ], [ "Giampaolo", "S. M.", "" ], [ "Lambiase", "G.", "" ] ]
We analyze many aspects of the phenomenon of the decoherence for neutrinos propagating in long baseline experiments. We show that, in the presence of an off-diagonal term in the dissipative matrix, the Majorana neutrino can violate the CP T symmetry, which, on the contrary, is preserved for Dirac neutrinos. We show tha...
hep-ph/9312225
Noriaki Kitazawa
N.Kitazawa and T.Kurimoto
Heavy meson effective thoery with 1/M_Q correction
14pages, revtex
Phys.Lett. B323 (1994) 65-70
10.1016/0370-2693(94)00047-6
DPNU-93-37, OS-GE 38-93
hep-ph
null
We construct an effective Lagrangian of heavy and light mesons with $1/M_Q$ correction. The Lagrangian is constructed model independent way by using only the information of the symmetry of QCD. Reparameterisation invariance at the meson level is taken into account for the consistency of the theory. The partial decay ...
[ { "created": "Mon, 6 Dec 1993 09:23:03 GMT", "version": "v1" } ]
2009-10-22
[ [ "Kitazawa", "N.", "" ], [ "Kurimoto", "T.", "" ] ]
We construct an effective Lagrangian of heavy and light mesons with $1/M_Q$ correction. The Lagrangian is constructed model independent way by using only the information of the symmetry of QCD. Reparameterisation invariance at the meson level is taken into account for the consistency of the theory. The partial decay wi...
hep-ph/0508009
Debajyoti Choudhury
Debajyoti Choudhury (Univ of Delhi, India), Madhumita Datta and Manas Maity (Visva-Bharati, India)
Looking for the Top-squark at the Tevatron with four jets
4 pages, 4 embedded figures, RevTeX
Phys.Rev. D73 (2006) 055013
10.1103/PhysRevD.73.055013
null
hep-ph
null
The scalar partner of the top quark is relatively light in many models of supersymmetry breaking. We study the production of top squarks (stops) at the Tevatron collider and their subsequent decay through baryon-number violating couplings such that the final state contains no leptons. Performing a detector-level anal...
[ { "created": "Sun, 31 Jul 2005 05:27:17 GMT", "version": "v1" } ]
2009-11-11
[ [ "Choudhury", "Debajyoti", "", "Univ of Delhi, India" ], [ "Datta", "Madhumita", "", "Visva-Bharati, India" ], [ "Maity", "Manas", "", "Visva-Bharati, India" ] ]
The scalar partner of the top quark is relatively light in many models of supersymmetry breaking. We study the production of top squarks (stops) at the Tevatron collider and their subsequent decay through baryon-number violating couplings such that the final state contains no leptons. Performing a detector-level analys...
hep-ph/9703211
Stephen P. Martin
S. Ambrosanio, Graham D. Kribs and Stephen P. Martin
Signals for gauge-mediated supersymmetry breaking models at the CERN LEP2 collider
36 pages, LaTeX, 10 figures embedded using epsf.sty (published version; minor changes in wording)
Phys.Rev.D56:1761-1777,1997
10.1103/PhysRevD.56.1761
null
hep-ph hep-ex
null
We consider a general class of models with gauge-mediated supersymmetry breaking in which the gravitino is the lightest supersymmetric particle. Several qualitatively different scenarios arise for the phenomenology of such models, depending on which superpartner(s) decay dominantly to the gravitino. At LEP2, neutrali...
[ { "created": "Sun, 2 Mar 1997 22:29:30 GMT", "version": "v1" }, { "created": "Wed, 25 Jun 1997 15:22:42 GMT", "version": "v2" } ]
2010-04-06
[ [ "Ambrosanio", "S.", "" ], [ "Kribs", "Graham D.", "" ], [ "Martin", "Stephen P.", "" ] ]
We consider a general class of models with gauge-mediated supersymmetry breaking in which the gravitino is the lightest supersymmetric particle. Several qualitatively different scenarios arise for the phenomenology of such models, depending on which superpartner(s) decay dominantly to the gravitino. At LEP2, neutralino...
0710.2846
Tri-Nang Pham
T. N. Pham
Two-photon decay of heavy quarkonium from heavy-quark spin symmetry
9 pages, Talk given at the QCD@Work 2007 International Workshop on QCD: Theory and Experiment}, Martina Franca, Italy, 16--20 June 2007
AIPConf.Proc.964:124-131,2007
10.1063/1.2823837
null
hep-ph
null
With the recent measurements on $\eta_{c}$ and $\eta_{c}^{\prime}$ at CLEO, Babar and Belle, and with the prospect of finding the $\eta_{b}$ at the Tevatron, it seems appropriate to have another look at the two-photon decay of heavy quarkonium from the standpoint of an effective Lagrangian based on local operator exp...
[ { "created": "Mon, 15 Oct 2007 15:31:56 GMT", "version": "v1" } ]
2008-11-26
[ [ "Pham", "T. N.", "" ] ]
With the recent measurements on $\eta_{c}$ and $\eta_{c}^{\prime}$ at CLEO, Babar and Belle, and with the prospect of finding the $\eta_{b}$ at the Tevatron, it seems appropriate to have another look at the two-photon decay of heavy quarkonium from the standpoint of an effective Lagrangian based on local operator expan...
hep-ph/9612247
L. B. Okun
L. B. Okun
Tests of CPT
Latex, 5 pages,Talk at the Workshop on $K$-physics, ORSAY, France, 30 May - 4 June, 1996
null
null
ITEP-TH-55/96
hep-ph
null
A few remarks concerning theoretical suggestions and experimental tests of CPT during 1980's - 1990's. Is it worth to search for the particle-antiparticle mass differences in sectors other than $K^0\bar{K}^0$?
[ { "created": "Wed, 4 Dec 1996 13:20:15 GMT", "version": "v1" } ]
2007-05-23
[ [ "Okun", "L. B.", "" ] ]
A few remarks concerning theoretical suggestions and experimental tests of CPT during 1980's - 1990's. Is it worth to search for the particle-antiparticle mass differences in sectors other than $K^0\bar{K}^0$?
hep-ph/0301022
Prasanta Kumar Das
Uma Mahanta and Prasanta Das
The effect of a light radion on the triviality bound on higgs mass
9 pages, latex, 2 eps figures
Int.J.Mod.Phys.A20:1089-1093,2005
10.1142/S0217751X05020719
null
hep-ph
null
In this paper we study how the triviality bound on higgs mass in the context of the SM is modified by a light stabilized radion of the Goldberger-Wise variety. Our approach is inherently perturbative. Including the radion contribution to $\bt(\l)$ and $\bt(g_t)$ to one loop we evolve the higgs self coupling $\l$ from...
[ { "created": "Sun, 5 Jan 2003 18:13:30 GMT", "version": "v1" } ]
2010-11-05
[ [ "Mahanta", "Uma", "" ], [ "Das", "Prasanta", "" ] ]
In this paper we study how the triviality bound on higgs mass in the context of the SM is modified by a light stabilized radion of the Goldberger-Wise variety. Our approach is inherently perturbative. Including the radion contribution to $\bt(\l)$ and $\bt(g_t)$ to one loop we evolve the higgs self coupling $\l$ from t...
1605.02496
Kazem Azizi
S. S. Agaev, K. Azizi, H. Sundu
Application of the QCD light cone sum rule to tetraquarks: the strong vertices $X_bX_b\rho$ and $X_cX_c\rho$
10 Pages, 5 Figures and 1 Table
Phys. Rev. D 93, 114036 (2016)
10.1103/PhysRevD.93.114036
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The full version of QCD light-cone sum rule method is applied to tetraquarks containing a single heavy $b$ or $c$ quark. To this end, investigations of the strong vertices $X_{b}X_{b}\rho$ and $X_{c}X_{c}\rho$ are performed, where $X_b=[su][\bar b\bar d]$ and $X_c=[su][\bar c\bar d]$ are the exotic states built of fo...
[ { "created": "Mon, 9 May 2016 09:51:43 GMT", "version": "v1" }, { "created": "Mon, 27 Jun 2016 18:31:26 GMT", "version": "v2" }, { "created": "Fri, 24 Feb 2017 11:46:35 GMT", "version": "v3" } ]
2017-02-27
[ [ "Agaev", "S. S.", "" ], [ "Azizi", "K.", "" ], [ "Sundu", "H.", "" ] ]
The full version of QCD light-cone sum rule method is applied to tetraquarks containing a single heavy $b$ or $c$ quark. To this end, investigations of the strong vertices $X_{b}X_{b}\rho$ and $X_{c}X_{c}\rho$ are performed, where $X_b=[su][\bar b\bar d]$ and $X_c=[su][\bar c\bar d]$ are the exotic states built of four...
2101.00142
Xingchen Xu
Xingchen Xu, Glennys R. Farrar
Resonant Scattering between Dark Matter and Baryons: Revised Direct Detection and CMB Limits
31+10 pages,15+3 figures. v2 adds some citations and additional analyses: (1) repulsive as well as attractive interaction, (2) separate analysis of CMB and CMB+Ly-alpha limits & non-trivial role of DM-He scattering relative to Born case, (3) Milky Way gas clouds and Milky Way satellites, (4) velocity dependence...
null
null
null
hep-ph astro-ph.CO astro-ph.HE hep-ex
http://creativecommons.org/licenses/by-nc-nd/4.0/
Traditional dark matter models, eg. WIMPs, assume dark matter is weakly coupled to the standard model so that elastic scattering between dark matter and baryons can be described perturbatively by Born approximation. Most direct detection experiments are analyzed according to that assumption. We show that when the fun...
[ { "created": "Fri, 1 Jan 2021 02:41:08 GMT", "version": "v1" }, { "created": "Thu, 2 Dec 2021 12:52:26 GMT", "version": "v2" } ]
2021-12-03
[ [ "Xu", "Xingchen", "" ], [ "Farrar", "Glennys R.", "" ] ]
Traditional dark matter models, eg. WIMPs, assume dark matter is weakly coupled to the standard model so that elastic scattering between dark matter and baryons can be described perturbatively by Born approximation. Most direct detection experiments are analyzed according to that assumption. We show that when the funda...
2102.12237
Johannes Bl\"umlein
J. Bl\"umlein, A. De Freitas, and K. Sch\"onwald
The QED Initial State Corrections to the Forward-Backward Asymmetry of $e^+e^- \to \gamma^*/Z^{0*}$ to Higher Orders
Dedicated to the Memory of Tini Veltman, who made it possible to probe the Standard Model at high precision
null
10.1016/j.physletb.2021.136250
DESY 21--013, DO--TH 21/04, TTP21--004, SAGEX--21--03
hep-ph hep-ex
http://creativecommons.org/licenses/by-sa/4.0/
The QED initial state corrections are calculated to the forward-backward asymmetry for $e^+e^- \rightarrow \gamma^*/{Z^{0}}^*$ in the leading logarithmic approximation to $O(\alpha^6 L^6)$ extending the known corrections up to $O(\alpha^2 L^2)$ in analytic form. We use the method of massive on-shell operator matrix e...
[ { "created": "Wed, 24 Feb 2021 11:59:59 GMT", "version": "v1" } ]
2021-04-28
[ [ "Blümlein", "J.", "" ], [ "De Freitas", "A.", "" ], [ "Schönwald", "K.", "" ] ]
The QED initial state corrections are calculated to the forward-backward asymmetry for $e^+e^- \rightarrow \gamma^*/{Z^{0}}^*$ in the leading logarithmic approximation to $O(\alpha^6 L^6)$ extending the known corrections up to $O(\alpha^2 L^2)$ in analytic form. We use the method of massive on-shell operator matrix ele...
hep-ph/9311294
Gregory Korchemsky
G.P.Korchemsky
On near forward high energy scattering in QCD
LaTeX style, 13 pages, 4 figures (included)
Phys.Lett. B325 (1994) 459-466
10.1016/0370-2693(94)90040-X
ITP-SB-93-73
hep-ph hep-th
null
We consider elastic quark-quark scattering at high energy and fixed transferred momentum. Performing factorization of soft gluon exchanges into Wilson lines vacuum expectation values and studying their properties, we find that the asymptotics of the scattering amplitude is controlled by the renormalization properties...
[ { "created": "Mon, 15 Nov 1993 17:25:07 GMT", "version": "v1" }, { "created": "Tue, 23 Nov 1993 18:39:12 GMT", "version": "v2" } ]
2009-10-22
[ [ "Korchemsky", "G. P.", "" ] ]
We consider elastic quark-quark scattering at high energy and fixed transferred momentum. Performing factorization of soft gluon exchanges into Wilson lines vacuum expectation values and studying their properties, we find that the asymptotics of the scattering amplitude is controlled by the renormalization properties o...
1903.00698
Aleksey Pivovarov
M. K. Volkov, Aleksey A. Pivovarov and K. Nurlan
The tetraquark $K_{1}(1400)$ in the decays $\tau \to [\omega(782), \phi(1020)] K^{-} \nu_{\tau}$
Another explanation of the nature of the physical state $K_{1}(1400)$ was found
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the extended Nambu--Jona-Lasinio model, the decay widths of the processes $\tau \to [\omega(782), \phi(1020)] K^{-} \nu_{\tau}$ were calculated. The intermediate strange quark-antiquark mesons in both the ground and the first radially excited states were taken into account. The meson $K_{1}(1400)$, being a possibl...
[ { "created": "Sat, 2 Mar 2019 13:21:42 GMT", "version": "v1" }, { "created": "Tue, 25 Jun 2019 09:22:59 GMT", "version": "v2" } ]
2019-06-26
[ [ "Volkov", "M. K.", "" ], [ "Pivovarov", "Aleksey A.", "" ], [ "Nurlan", "K.", "" ] ]
In the extended Nambu--Jona-Lasinio model, the decay widths of the processes $\tau \to [\omega(782), \phi(1020)] K^{-} \nu_{\tau}$ were calculated. The intermediate strange quark-antiquark mesons in both the ground and the first radially excited states were taken into account. The meson $K_{1}(1400)$, being a possible ...
1610.08196
Ilya F. Ginzburg
I.F. Ginzburg
What tell us LHC data about Higgs boson parity
4 pages
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recently CMS and ATLAS announced that they had measured the Higgs boson parity. Here we note that their approach can determine this parity only under the additional assumption that this particle has a definite parity. If parity conservation is violated in the Higgs sector, the parity of observed "Higgs" boson does ...
[ { "created": "Wed, 26 Oct 2016 06:42:31 GMT", "version": "v1" } ]
2016-10-27
[ [ "Ginzburg", "I. F.", "" ] ]
Recently CMS and ATLAS announced that they had measured the Higgs boson parity. Here we note that their approach can determine this parity only under the additional assumption that this particle has a definite parity. If parity conservation is violated in the Higgs sector, the parity of observed "Higgs" boson does not ...
1006.2379
Charles Gale
Simon Caron-Huot and Charles Gale
Finite-size effects on the radiative energy loss of a fast parton in hot and dense strongly interacting matter
15 pages, 7 figures, typos and references corrected. Clearer figures. Harmonized with published version
Phys.Rev.C82:064902,2010
10.1103/PhysRevC.82.064902
null
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider finite-size effects on the radiative energy loss of a fast parton moving in a finite temperature strongly interacting medium, using the light cone path integral formalism put forward by Zakharov. We present a convenient reformulation of the problem which makes possible its exact numerical analysis. This i...
[ { "created": "Fri, 11 Jun 2010 19:55:54 GMT", "version": "v1" }, { "created": "Mon, 6 Dec 2010 16:12:03 GMT", "version": "v2" } ]
2010-12-24
[ [ "Caron-Huot", "Simon", "" ], [ "Gale", "Charles", "" ] ]
We consider finite-size effects on the radiative energy loss of a fast parton moving in a finite temperature strongly interacting medium, using the light cone path integral formalism put forward by Zakharov. We present a convenient reformulation of the problem which makes possible its exact numerical analysis. This is ...
1605.08442
Sebastian Macaluso
Aria Basirnia, Sebastian Macaluso and David Shih
Dark Matter and the Higgs in Natural SUSY
37 pages, 15 figures, updated LUX limits
null
10.1007/JHEP03(2017)073
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Null results from dark matter (DM) direct detection experiments and the 125 GeV Higgs both pose serious challenges to minimal supersymmetry. In this paper, we propose a simple extension of the MSSM that economically solves both problems: a "dark sector" consisting of a singlet and a pair of $SU(2)$ doublets. Loops of...
[ { "created": "Thu, 26 May 2016 20:02:20 GMT", "version": "v1" }, { "created": "Tue, 22 Nov 2016 19:22:32 GMT", "version": "v2" } ]
2017-04-05
[ [ "Basirnia", "Aria", "" ], [ "Macaluso", "Sebastian", "" ], [ "Shih", "David", "" ] ]
Null results from dark matter (DM) direct detection experiments and the 125 GeV Higgs both pose serious challenges to minimal supersymmetry. In this paper, we propose a simple extension of the MSSM that economically solves both problems: a "dark sector" consisting of a singlet and a pair of $SU(2)$ doublets. Loops of t...
hep-ph/0701253
Kevin Dusling
Kevin Dusling and Ismail Zahed
Transverse momentum spectra of dileptons at NA60
10 pages, 5 figures
Phys.Rev.C80:014902,2009
10.1103/PhysRevC.80.014902
null
hep-ph
null
Recently the NA60 collaboration has reported the transverse mass spectra of dimuons coming from In-In collisions at 158 GeV/A. The measured yields display a strong invariant mass dependence not typical of radial flow, suggesting that different sources contribute in different mass regions. We interpret the dimuon tran...
[ { "created": "Tue, 30 Jan 2007 18:45:18 GMT", "version": "v1" } ]
2009-08-18
[ [ "Dusling", "Kevin", "" ], [ "Zahed", "Ismail", "" ] ]
Recently the NA60 collaboration has reported the transverse mass spectra of dimuons coming from In-In collisions at 158 GeV/A. The measured yields display a strong invariant mass dependence not typical of radial flow, suggesting that different sources contribute in different mass regions. We interpret the dimuon transv...
2012.06911
Luigi Delle Rose
Luigi Delle Rose, Shaaban Khalil, Stefano Moretti
Explaining electron and muon $g-2$ anomalies in an Aligned 2-Higgs Doublet Model with Right-Handed Neutrinos
9 pages, 4 figures
null
10.1016/j.physletb.2021.136216
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explain anomalies currently present in various data samples used for the measurement of the anomalous magnetic moment of electron ($a_e$) and muon ($a_\mu$) in terms of an Aligned 2-Higgs Doublet Model with right-handed neutrinos. The explanation is driven by one and two-loop topologies wherein a very light CP-odd...
[ { "created": "Sat, 12 Dec 2020 22:19:47 GMT", "version": "v1" } ]
2021-03-24
[ [ "Rose", "Luigi Delle", "" ], [ "Khalil", "Shaaban", "" ], [ "Moretti", "Stefano", "" ] ]
We explain anomalies currently present in various data samples used for the measurement of the anomalous magnetic moment of electron ($a_e$) and muon ($a_\mu$) in terms of an Aligned 2-Higgs Doublet Model with right-handed neutrinos. The explanation is driven by one and two-loop topologies wherein a very light CP-odd n...
1909.09527
Bj\"orn Herrmann
J. Branahl, J. Harz, B. Herrmann, M. Klasen, K. Kova\v{r}\'ik, S. Schmiemann
SUSY-QCD corrected and Sommerfeld enhanced stau annihilation into heavy quarks with scheme and scale uncertainties
12 pages, 11 figures. Minor changes, matches published version
Phys. Rev. D 100, 115003 (2019)
10.1103/PhysRevD.100.115003
LAPTH-045/19, MS-TP-19-28, TUM-HEP-1226-19
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate stau-antistau annihilation into heavy quarks in the phenomenological Minimal Supersymmetric Standard Model within the DM@NLO project. We present the calculation of the corresponding cross section including corrections up to $\mathcal{O}(\alpha_s)$ and QED Sommerfeld enhancement. The numerical impact of...
[ { "created": "Fri, 20 Sep 2019 14:29:06 GMT", "version": "v1" }, { "created": "Tue, 26 Nov 2019 17:15:53 GMT", "version": "v2" } ]
2019-12-11
[ [ "Branahl", "J.", "" ], [ "Harz", "J.", "" ], [ "Herrmann", "B.", "" ], [ "Klasen", "M.", "" ], [ "Kovařík", "K.", "" ], [ "Schmiemann", "S.", "" ] ]
We investigate stau-antistau annihilation into heavy quarks in the phenomenological Minimal Supersymmetric Standard Model within the DM@NLO project. We present the calculation of the corresponding cross section including corrections up to $\mathcal{O}(\alpha_s)$ and QED Sommerfeld enhancement. The numerical impact of t...
hep-ph/0411096
Giacomo Sguazzoni
Giacomo Sguazzoni
Higgs and Beyond Standard Model Searches at LEP
10 pages, 7 figures, talk presented at Hadron Structure 2004, Smolenice Castle, Slovakia
Acta Phys.Slov. 55 (2005) 93-102
null
null
hep-ph
null
Extensive searches for Higgs bosons and other new phenomena predicted by extensions of the Standard Model have been performed at LEP. A summary is given reviewing the principal aspects and presenting a selection of results.
[ { "created": "Sat, 6 Nov 2004 00:37:29 GMT", "version": "v1" } ]
2007-05-23
[ [ "Sguazzoni", "Giacomo", "" ] ]
Extensive searches for Higgs bosons and other new phenomena predicted by extensions of the Standard Model have been performed at LEP. A summary is given reviewing the principal aspects and presenting a selection of results.
1603.05808
Samoil Bilenky M.
S. M. Bilenky
Comments on the determination of the neutrino mass ordering in reactor neutrino experiments
null
null
10.1134/S1547477117030050
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the problem of determination of the neutrino mass ordering via precise study of the vacuum neutrino oscillations in the JUNO and other future medium baseline reactor neutrino experiments. We are proposing to resolve neutrino mass ordering by determination of the neutrino oscillation parameters from analys...
[ { "created": "Fri, 18 Mar 2016 09:54:17 GMT", "version": "v1" } ]
2017-06-07
[ [ "Bilenky", "S. M.", "" ] ]
We consider the problem of determination of the neutrino mass ordering via precise study of the vacuum neutrino oscillations in the JUNO and other future medium baseline reactor neutrino experiments. We are proposing to resolve neutrino mass ordering by determination of the neutrino oscillation parameters from analysis...
0706.1729
Bruno Machet
Quentin Duret (LPTHE), Bruno Machet (LPTHE)
Mixing angles of quarks and leptons as an outcome of SU(2) horizontal symmetries
While calculations are unchanged w.r.t. arXiv:0705.1237, the horizontal symmetries controlling the mixing angles have been uncovered, motivating a change of title and a new entry in the arXiv. A new point of view about which angles are measured has also been adopted
null
null
null
hep-ph
null
We show that all mixing angles are determined, within experimental uncertainty, by a product of SU(2) horizontal symmetries intimately linked to the algebra of weak neutral currents. This concerns: on one hand, the three quark mixing angles; on the other hand, a neutrino-like pattern in which theta_{23} is maximal an...
[ { "created": "Tue, 12 Jun 2007 15:30:46 GMT", "version": "v1" } ]
2007-06-13
[ [ "Duret", "Quentin", "", "LPTHE" ], [ "Machet", "Bruno", "", "LPTHE" ] ]
We show that all mixing angles are determined, within experimental uncertainty, by a product of SU(2) horizontal symmetries intimately linked to the algebra of weak neutral currents. This concerns: on one hand, the three quark mixing angles; on the other hand, a neutrino-like pattern in which theta_{23} is maximal and ...
1209.0817
Soeren Schlichting
J. Berges, S. Schlichting
The non-linear Glasma
16 pages, 7 figures, to appear in Phys. Rev. D
null
10.1103/PhysRevD.87.014026
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the evolution of quantum fluctuations in the Glasma created immediately after the collision of heavy nuclei. It is shown how the presence of instabilities leads to an enhancement of non-linear interactions among initially small fluctuations. The non-linear dynamics leads to an enhanced growth of fluctuations...
[ { "created": "Tue, 4 Sep 2012 22:15:59 GMT", "version": "v1" }, { "created": "Tue, 8 Jan 2013 15:26:51 GMT", "version": "v2" } ]
2013-05-30
[ [ "Berges", "J.", "" ], [ "Schlichting", "S.", "" ] ]
We study the evolution of quantum fluctuations in the Glasma created immediately after the collision of heavy nuclei. It is shown how the presence of instabilities leads to an enhancement of non-linear interactions among initially small fluctuations. The non-linear dynamics leads to an enhanced growth of fluctuations i...
hep-ph/0512025
Massimiliano Grazzini
M. Grazzini
The transverse-momentum distribution of the Higgs boson at the LHC
4 pages, 2 figures, to appear in the Proceedings of the International Europhysics Conference on High Energy Physics, July 21st - 27th 2005, Lisboa, Portugal
null
null
DFF 430/12/05
hep-ph
null
We present QCD predictions for the transverse momentum (q_T) distribution of the Higgs boson at the LHC. At small q_T the logarithmically-enhanced terms are resummed to all orders up to next-to-next-to-leading logarithmic accuracy. The resummed component is consistently matched to the next-to-leading order calculatio...
[ { "created": "Fri, 2 Dec 2005 09:48:01 GMT", "version": "v1" } ]
2007-05-23
[ [ "Grazzini", "M.", "" ] ]
We present QCD predictions for the transverse momentum (q_T) distribution of the Higgs boson at the LHC. At small q_T the logarithmically-enhanced terms are resummed to all orders up to next-to-next-to-leading logarithmic accuracy. The resummed component is consistently matched to the next-to-leading order calculation ...
hep-ph/0408024
Shunzo Kumano
M. Hirai, S. Kumano, and N. Saito (Asymmetry Analysis Collaboration)
AAC analysis of polarized parton distributions with uncertainties
4 pages, LaTeX, 4 eps files, dis04.cls, to be published in the proceedings of the 12th International Workshop on Deep Inelastic Scattering (DIS04), Strbske-Pleso, Slovakia, April 14-18, 2004. Polarized PDF library is available at http://spin.riken.bnl.gov/aac/
null
null
SAGA-HE-210-04
hep-ph hep-ex nucl-ex nucl-th
null
We report recent studies of the Asymmetry Analysis Collaboration (AAC) on polarized parton distribution functions (PDFs). Using the data on the spin symmetry A_1 in deep inelastic lepton scattering, we investigate optimum polarized PDFs. Their uncertainties are estimated by the Hessian method. The uncertainties are l...
[ { "created": "Tue, 3 Aug 2004 01:33:08 GMT", "version": "v1" } ]
2007-05-23
[ [ "Hirai", "M.", "", "Asymmetry Analysis Collaboration" ], [ "Kumano", "S.", "", "Asymmetry Analysis Collaboration" ], [ "Saito", "N.", "", "Asymmetry Analysis Collaboration" ] ]
We report recent studies of the Asymmetry Analysis Collaboration (AAC) on polarized parton distribution functions (PDFs). Using the data on the spin symmetry A_1 in deep inelastic lepton scattering, we investigate optimum polarized PDFs. Their uncertainties are estimated by the Hessian method. The uncertainties are lar...
hep-ph/0307318
Sancho Moura Oliveira
S. M. Oliveira and R. Santos (CFTC, Univ. de Lisboa)
Bounds on the mass of the b' quark, revisited
9 pages and 7 figures. REVTEX4
Phys.Rev.D68:093012,2003
10.1103/PhysRevD.68.093012
null
hep-ph
null
Recent results from the DELPHI collaboration led us to review the present bounds on the b' quark mass. We use all available experimental data for m_b' > 96 GeV to constrain the b' quark mass as a function of the Cabibbo-Kobayashi-Maskawa elements in a sequential four generations model. We find that there is still roo...
[ { "created": "Fri, 25 Jul 2003 15:03:34 GMT", "version": "v1" }, { "created": "Thu, 31 Jul 2003 12:43:02 GMT", "version": "v2" } ]
2011-03-23
[ [ "Oliveira", "S. M.", "", "CFTC, Univ. de Lisboa" ], [ "Santos", "R.", "", "CFTC, Univ. de Lisboa" ] ]
Recent results from the DELPHI collaboration led us to review the present bounds on the b' quark mass. We use all available experimental data for m_b' > 96 GeV to constrain the b' quark mass as a function of the Cabibbo-Kobayashi-Maskawa elements in a sequential four generations model. We find that there is still room ...
hep-ph/0002104
Adam Lewandowski
Adam Lewandowski
Constraints on a Model with Pure Right-Handed Third Generation Couplings
14 pages
Phys.Rev. D62 (2000) 055007
10.1103/PhysRevD.62.055007
JHU-TIPAC-200001
hep-ph
null
We examine constraints on a model with pure right-handed third generation charged couplings. The parameters of the right-handed mixing matrix and the right-handed coupling strength are constrained from semi-leptonic B decays, the mass difference of neutral mesons, the CP violating observables epsilon and epsilon', an...
[ { "created": "Wed, 9 Feb 2000 18:50:33 GMT", "version": "v1" } ]
2009-10-31
[ [ "Lewandowski", "Adam", "" ] ]
We examine constraints on a model with pure right-handed third generation charged couplings. The parameters of the right-handed mixing matrix and the right-handed coupling strength are constrained from semi-leptonic B decays, the mass difference of neutral mesons, the CP violating observables epsilon and epsilon', and ...
0805.3015
Wei Khim Ng
Wei Khim Ng and Rajesh R. Parwani
Probing Quantum Nonlinearities through Neutrino Oscillations
null
Mod.Phys.Lett.A25:793-804,2010
10.1142/S0217732310032792
null
hep-ph hep-th quant-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate potential quantum nonlinear corrections to Dirac's equation through its sub-leading effect on neutrino oscillation probabilities. Working in the plane-wave approximation and in the $\mu-\tau$ sector, we explore various classes of nonlinearities, with or without an accompanying Lorentz violation. The pa...
[ { "created": "Tue, 20 May 2008 07:01:26 GMT", "version": "v1" }, { "created": "Sat, 5 Feb 2011 06:37:27 GMT", "version": "v2" } ]
2011-02-08
[ [ "Ng", "Wei Khim", "" ], [ "Parwani", "Rajesh R.", "" ] ]
We investigate potential quantum nonlinear corrections to Dirac's equation through its sub-leading effect on neutrino oscillation probabilities. Working in the plane-wave approximation and in the $\mu-\tau$ sector, we explore various classes of nonlinearities, with or without an accompanying Lorentz violation. The para...
1908.11816
Matthias Lutz F.M.
Yonggoo Heo, C. Kobdaj and M.F.M. Lutz
Constraints from a large-N_c analysis on meson-baryon interactions at chiral order Q^3
24 pages
Phys. Rev. D 100, 094035 (2019)
10.1103/PhysRevD.100.094035
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the chiral Lagrangian for baryon fields with J^P =\frac{1}{2}^+ or J^P =\frac{3}{2}^+ quantum numbers as constructed from QCD with up, down and strange quarks. The specific class of counter terms that are of chiral order Q^3 and contribute to meson-baryon interactions at the two-body level is constructed....
[ { "created": "Fri, 30 Aug 2019 16:14:40 GMT", "version": "v1" } ]
2019-12-04
[ [ "Heo", "Yonggoo", "" ], [ "Kobdaj", "C.", "" ], [ "Lutz", "M. F. M.", "" ] ]
We consider the chiral Lagrangian for baryon fields with J^P =\frac{1}{2}^+ or J^P =\frac{3}{2}^+ quantum numbers as constructed from QCD with up, down and strange quarks. The specific class of counter terms that are of chiral order Q^3 and contribute to meson-baryon interactions at the two-body level is constructed. A...
hep-ph/0006295
Andrey Onishenko
A.I.Onishchenko (ITEP, Moscow)
Inclusive and exclusive decays of doubly heavy baryons
8 pages, JHEP-class, 7 eps-figures, 5 tables, Talk given at Vth International Workshop "HEAVY QUARK PHYSICS" April 6-8, 2000, Dubna, Russia
null
null
null
hep-ph
null
In this paper we give a short review of the recently obtained results on inclusive and exclusive decays of doubly heavy baryons.
[ { "created": "Mon, 26 Jun 2000 18:01:36 GMT", "version": "v1" } ]
2007-05-23
[ [ "Onishchenko", "A. I.", "", "ITEP, Moscow" ] ]
In this paper we give a short review of the recently obtained results on inclusive and exclusive decays of doubly heavy baryons.
0912.5278
Alexander E. Dorokhov
A.E. Dorokhov
How the recent BABAR data for P to \gamma\gamma* affect the Standard Model predictions for the rare decays P to l+l-
11 pages, 3 figures
JETP Lett.91:163-169,2010
10.1134/S0021364010040016
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Measuring the lepton anomalous magnetic moments $(g-2)$ and the rare decays of light pseudoscalar mesons into lepton pairs $P\to l^{+}l^{-} $, serve as important tests of the Standard Model. To reduce the theoretical uncertainty in the standard model predictions, the data on the charge and transition form factors of ...
[ { "created": "Wed, 30 Dec 2009 14:06:14 GMT", "version": "v1" }, { "created": "Thu, 14 Jan 2010 08:40:48 GMT", "version": "v2" } ]
2014-11-20
[ [ "Dorokhov", "A. E.", "" ] ]
Measuring the lepton anomalous magnetic moments $(g-2)$ and the rare decays of light pseudoscalar mesons into lepton pairs $P\to l^{+}l^{-} $, serve as important tests of the Standard Model. To reduce the theoretical uncertainty in the standard model predictions, the data on the charge and transition form factors of th...
1211.1186
Ilya Gorbunov N
Gennady Kozlov
Dilaton vs Higgs: Nearly Conformal theory with confinement-like pattern
8 pages, 1 fig., Talk at the Conference "Quark Confinement and the Hadron Spectrum X" (8-12 October, 2012, TUM Campus Garching, Munich, Germany) to appear in the Proceedings
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the model containing a dilaton vs Higgs boson in the nearly conformal sector (NCS). The potential of a dilaton in NCS is linearly rising with distances. The light scalar dilaton would be one of the best candidates to explain the LHC data in recent discovery of a Higgs-like resonance at 125 GeV.
[ { "created": "Tue, 6 Nov 2012 11:31:32 GMT", "version": "v1" } ]
2012-11-07
[ [ "Kozlov", "Gennady", "" ] ]
We consider the model containing a dilaton vs Higgs boson in the nearly conformal sector (NCS). The potential of a dilaton in NCS is linearly rising with distances. The light scalar dilaton would be one of the best candidates to explain the LHC data in recent discovery of a Higgs-like resonance at 125 GeV.
hep-ph/9706439
Graciela Gelmini
J. A. Casas (CSIC, Spain) and G. B. Gelmini (UCLA, Usa)
Conditions for Viable Affleck-Dine Baryogenesis -- Implications for String Theories
13 pp., LaTex file
Phys.Lett. B410 (1997) 36-44
10.1016/S0370-2693(97)00971-4
IEM-FT-157/97 and UCLA/97/TEP/15
hep-ph
null
We examine the conditions for a viable Affleck-Dine baryogenesis in supergravity (SUGRA) scenarios, finding surprisingly strong constraints on the type of SUGRA theory. These constraints are beautifully fulfilled by string-based SUGRA models provided that inflation is driven by a modulus (T) field.
[ { "created": "Sat, 21 Jun 1997 00:44:35 GMT", "version": "v1" } ]
2009-10-30
[ [ "Casas", "J. A.", "", "CSIC, Spain" ], [ "Gelmini", "G. B.", "", "UCLA, Usa" ] ]
We examine the conditions for a viable Affleck-Dine baryogenesis in supergravity (SUGRA) scenarios, finding surprisingly strong constraints on the type of SUGRA theory. These constraints are beautifully fulfilled by string-based SUGRA models provided that inflation is driven by a modulus (T) field.
2301.07456
Vinod Mamale
Shreyansh S. Dave, Sanatan Digal, Vinod Mamale
Parametric resonance in abelian and non-abelian gauge fields via space-time oscillations
22 pages, 21 figures
Phys. Rev. D 109, 076023 (2024)
10.1103/PhysRevD.109.076023
null
hep-ph astro-ph.HE gr-qc hep-th
http://creativecommons.org/licenses/by/4.0/
We study the evolution of abelian $U(1)$ electromagnetic as well as non-abelian $SU(2)$ gauge fields, in the presence of space-time oscillations. Analysis of the time evolution of abelian gauge fields shows the presence of parametric resonance in spatial modes. A similar analysis in the case of non-abelian gauge fiel...
[ { "created": "Wed, 18 Jan 2023 12:01:04 GMT", "version": "v1" }, { "created": "Wed, 27 Mar 2024 16:03:35 GMT", "version": "v2" } ]
2024-04-26
[ [ "Dave", "Shreyansh S.", "" ], [ "Digal", "Sanatan", "" ], [ "Mamale", "Vinod", "" ] ]
We study the evolution of abelian $U(1)$ electromagnetic as well as non-abelian $SU(2)$ gauge fields, in the presence of space-time oscillations. Analysis of the time evolution of abelian gauge fields shows the presence of parametric resonance in spatial modes. A similar analysis in the case of non-abelian gauge fields...
hep-ph/9911337
Oscar Vives
D.A. Demir (1), A. Masiero (2) and O. Vives (2), ((1) ICTP, Trieste, (2) SISSA-ISAS and INFN, Trieste)
CP violation as a probe of flavor origin in Supersymmetry
Reference added. 7 pages, no figures
Phys.Lett. B479 (2000) 230-234
10.1016/S0370-2693(00)00321-X
SISSA/134/99/EP, IC/99/165
hep-ph
null
We address the question of the relation between supersymmetry breaking and the origin of flavor in the context of CP violating phenomena. We prove that, in the absence of the Cabibbo-Kobayashi-Maskawa phase, a general Minimal Supersymmetric Standard Model with all possible phases in the soft-breaking terms, but no ne...
[ { "created": "Fri, 12 Nov 1999 18:32:56 GMT", "version": "v1" }, { "created": "Mon, 7 Feb 2000 17:48:42 GMT", "version": "v2" } ]
2009-10-31
[ [ "Demir", "D. A.", "" ], [ "Masiero", "A.", "" ], [ "Vives", "O.", "" ] ]
We address the question of the relation between supersymmetry breaking and the origin of flavor in the context of CP violating phenomena. We prove that, in the absence of the Cabibbo-Kobayashi-Maskawa phase, a general Minimal Supersymmetric Standard Model with all possible phases in the soft-breaking terms, but no new ...
2003.14293
Giuseppe Bevilacqua
Giuseppe Bevilacqua
Effects of top-quark decay modeling in $t\bar{t}\gamma$ production at the LHC
13 pages, 1 table, 3 figures. To appear in the Proceedings of the XXVI Cracow Epiphany Conference on LHC Physics: Standard Model and Beyond, 7-10 January 2020, Cracow, Poland
null
10.5506/APhysPolB.51.1267
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a systematic comparison of different approaches for the modeling of $t\bar{t}\gamma$ final states with leptonic decays at the LHC. On the one hand, we consider a complete calculation at NLO QCD accuracy which includes all resonant and non-resonant diagrams. On the other hand, we consider predictions in the...
[ { "created": "Tue, 31 Mar 2020 15:29:39 GMT", "version": "v1" } ]
2020-08-26
[ [ "Bevilacqua", "Giuseppe", "" ] ]
We present a systematic comparison of different approaches for the modeling of $t\bar{t}\gamma$ final states with leptonic decays at the LHC. On the one hand, we consider a complete calculation at NLO QCD accuracy which includes all resonant and non-resonant diagrams. On the other hand, we consider predictions in the n...
1502.06767
Carlos Merino
G.H. Arakelyan, C. Merino, and Yu.M. Shabelski
Midrapidity Hyperon Production in pp and pA Collisions
Proceedings of Initial Stages 2014 Conference (6 pages, 2 figures, and 2 tables)
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we present the description of the production of strange and mulistrange baryons in a wide energy region, from CERN SpS up to LHC, in the framework of the Quark-Gluon String model.
[ { "created": "Tue, 24 Feb 2015 11:24:21 GMT", "version": "v1" } ]
2015-02-25
[ [ "Arakelyan", "G. H.", "" ], [ "Merino", "C.", "" ], [ "Shabelski", "Yu. M.", "" ] ]
In this paper we present the description of the production of strange and mulistrange baryons in a wide energy region, from CERN SpS up to LHC, in the framework of the Quark-Gluon String model.
2211.00022
Jonas Frerick
Jonas Frerick, Felix Kahlhoefer, Kai Schmidt-Hoberg
$A'$ view of the sunrise: Boosting helioscopes with angular information
29 pages, 14 figures
null
10.1088/1475-7516/2023/03/001
DESY-22-165, TTP22-065
hep-ph astro-ph.SR
http://creativecommons.org/licenses/by/4.0/
The Sun may copiously produce hypothetical light particles such as axions or dark photons, a scenario which can be experimentally probed with so-called helioscopes. Here we investigate the impact of the angular and spectral distribution of solar dark photons on the sensitivity of such instruments. For the first time ...
[ { "created": "Mon, 31 Oct 2022 18:00:02 GMT", "version": "v1" } ]
2023-03-08
[ [ "Frerick", "Jonas", "" ], [ "Kahlhoefer", "Felix", "" ], [ "Schmidt-Hoberg", "Kai", "" ] ]
The Sun may copiously produce hypothetical light particles such as axions or dark photons, a scenario which can be experimentally probed with so-called helioscopes. Here we investigate the impact of the angular and spectral distribution of solar dark photons on the sensitivity of such instruments. For the first time we...
0904.4025
Kuang-Ta Chao
Ying Fan, Yan-Qing Ma, Kuang-Ta Chao
Relativistic Correction to J/\psi Production at Hadron Colliders
9 pages, 5 figures
Phys.Rev.D79:114009,2009
10.1103/PhysRevD.79.114009
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Relativistic corrections to the color-singlet J/\psi hadroproduction at the Tevatron and LHC are calculated up to O(v^2) in nonrelativistic QCD (NRQCD). The short distance coefficients are obtained by matching full QCD with NRQCD results for the subprocess g+g\to J/\psi+g. The long distance matrix elements are extrac...
[ { "created": "Sun, 26 Apr 2009 13:44:24 GMT", "version": "v1" } ]
2009-11-19
[ [ "Fan", "Ying", "" ], [ "Ma", "Yan-Qing", "" ], [ "Chao", "Kuang-Ta", "" ] ]
Relativistic corrections to the color-singlet J/\psi hadroproduction at the Tevatron and LHC are calculated up to O(v^2) in nonrelativistic QCD (NRQCD). The short distance coefficients are obtained by matching full QCD with NRQCD results for the subprocess g+g\to J/\psi+g. The long distance matrix elements are extracte...
hep-ph/0110077
Misha Stephanov
M. Stephanov
Thermal fluctuations in the interacting pion gas
12 pages, 4 figures, RevTeX
Phys.Rev. D65 (2002) 096008
10.1103/PhysRevD.65.096008
null
hep-ph nucl-th
null
We derive the two-particle fluctuation correlator in a thermal gas of pi-mesons to the lowest order in an interaction due to a resonance exchange. A diagrammatic technique is used. We discuss how this result can be applied to event-by-event fluctuations in heavy-ion collisions, in particular, to search for the critic...
[ { "created": "Fri, 5 Oct 2001 17:58:39 GMT", "version": "v1" } ]
2009-11-07
[ [ "Stephanov", "M.", "" ] ]
We derive the two-particle fluctuation correlator in a thermal gas of pi-mesons to the lowest order in an interaction due to a resonance exchange. A diagrammatic technique is used. We discuss how this result can be applied to event-by-event fluctuations in heavy-ion collisions, in particular, to search for the critical...
hep-ph/0512067
Tobias Huber
T. Huber, S. Schilling
B -> X_s l+ l- in the Standard Model and in Two-Higgs-Doublet Models
9 pages, 2 Figures, uses moriond.sty. Presented at 40th Rencontres de Moriond on QCD and High Energy Hadronic Interactions, La Thuile, Aosta Valley, Italy, 12-19 Mar 2005
null
null
null
hep-ph
null
We present recent results of the rare semileptonic decay B -> X_s l+ l-. We particularly focus on higher order electroweak corrections in the Standard Model (SM) as well as O(alpha_s) corrections in Two-Higgs-doublet models (THDM), both of which are computed within an effective field theory approach. The calculatio...
[ { "created": "Mon, 5 Dec 2005 18:45:17 GMT", "version": "v1" } ]
2016-09-06
[ [ "Huber", "T.", "" ], [ "Schilling", "S.", "" ] ]
We present recent results of the rare semileptonic decay B -> X_s l+ l-. We particularly focus on higher order electroweak corrections in the Standard Model (SM) as well as O(alpha_s) corrections in Two-Higgs-doublet models (THDM), both of which are computed within an effective field theory approach. The calculation of...
hep-ph/0310296
Tetsuo Nishikawa
Tetsuo Nishikawa, Yoshimasa Hidaka, Munehisa Ohtani and Osamu Morimatsu
Effect of pion thermal width on the sigma spectrum
Contribution to the International Workshop on QCD: QCD@Work 2003 - Conversano (Italy) 14-18 June 2003 (eConf C030614)
null
null
null
hep-ph
null
We study the effect of the thermal width of $\pi$ on the spectral function of $\sigma$. In order to take into account a finite thermal width of $\pi$, we replace the internal pion mass in the self-energy of $\sigma$ with that of the complex pole found in a previous paper. The obtained spectral function for $T\aplg 10...
[ { "created": "Mon, 27 Oct 2003 09:22:53 GMT", "version": "v1" } ]
2007-05-23
[ [ "Nishikawa", "Tetsuo", "" ], [ "Hidaka", "Yoshimasa", "" ], [ "Ohtani", "Munehisa", "" ], [ "Morimatsu", "Osamu", "" ] ]
We study the effect of the thermal width of $\pi$ on the spectral function of $\sigma$. In order to take into account a finite thermal width of $\pi$, we replace the internal pion mass in the self-energy of $\sigma$ with that of the complex pole found in a previous paper. The obtained spectral function for $T\aplg 100 ...
2007.09897
C. Q. Geng
Chao-Qiang Geng, Chia-Wei Liu, Tien-Hsueh Tsai
Nonleptonic two-body weak decays of $\Lambda_b$ in modified MIT bag model
16 pages, no figure, revised version accepted by PRD
Phys. Rev. D 102, 034033 (2020)
10.1103/PhysRevD.102.034033
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the nonleptonic two-body weak decays of $\Lambda_b$ by modifying the MIT bag model without introducing new parameters to construct the momentum eigenstates of the baryons. We find that the branching ratios of $\Lambda_b^0 \to \Lambda_c^+ \pi^-$, $\Lambda_c^+ K^-$, $p \pi^-$ and $pK^-$ are $(4.5\pm0.2)\times ...
[ { "created": "Mon, 20 Jul 2020 05:53:39 GMT", "version": "v1" }, { "created": "Thu, 13 Aug 2020 04:58:35 GMT", "version": "v2" } ]
2020-09-02
[ [ "Geng", "Chao-Qiang", "" ], [ "Liu", "Chia-Wei", "" ], [ "Tsai", "Tien-Hsueh", "" ] ]
We study the nonleptonic two-body weak decays of $\Lambda_b$ by modifying the MIT bag model without introducing new parameters to construct the momentum eigenstates of the baryons. We find that the branching ratios of $\Lambda_b^0 \to \Lambda_c^+ \pi^-$, $\Lambda_c^+ K^-$, $p \pi^-$ and $pK^-$ are $(4.5\pm0.2)\times 10...
hep-ph/9710374
Basim Kamal
B. Kamal (Brookhaven)
Drell-Yan forward-backward and spin asymmetries for arbitrary vector boson production at next-to-leading order
34 pages, figures included, revtex. Some discussions and references added/modified. In more compact form. To appear in Phys. Rev. D
Phys.Rev. D57 (1998) 6663-6691
10.1103/PhysRevD.57.6663
BNL-64853
hep-ph
null
Longitudinally polarized, unpolarized and forward-backward mass differential cross sections for Drell-Yan lepton-pair production by arbitrary vector bosons are calculated in next-to-leading order (NLO) QCD. Analytical results are presented in a form valid for all consistent $n$-dimensional regularization schemes, wit...
[ { "created": "Thu, 16 Oct 1997 07:12:56 GMT", "version": "v1" }, { "created": "Wed, 11 Mar 1998 01:26:46 GMT", "version": "v2" } ]
2009-10-30
[ [ "Kamal", "B.", "", "Brookhaven" ] ]
Longitudinally polarized, unpolarized and forward-backward mass differential cross sections for Drell-Yan lepton-pair production by arbitrary vector bosons are calculated in next-to-leading order (NLO) QCD. Analytical results are presented in a form valid for all consistent $n$-dimensional regularization schemes, with ...
hep-ph/9304239
null
U. Baur, S. Errede, and J. Ohnemus
Ratios of $W^\pm\gamma$ and $Z\gamma$ Cross Sections: New Tools in Probing the Weak Boson Sector at the Tevatron
TeX, 39 pages, FSU-HEP-930322, UIUC-HEP-93-01, DTP/93/14, 15 Figures (uuencoded tar file, postscript) appended
Phys.Rev. D48 (1993) 4103-4120
10.1103/PhysRevD.48.4103
null
hep-ph
null
The ratios ${\cal R}_{\gamma ,\ell}=B(Z\to\ell^+\ell^-)\cdot\sigma(Z\gamma) /\allowbreak B(W\to\ell\nu)\cdot\sigma(W^\pm\gamma)$, ${\cal R}_{\gamma , \nu}= B(Z\to\bar\nu\nu)\cdot\sigma(Z\gamma)/\allowbreak B(W\to\ell\nu)\cdot\sigma(W^ \pm\gamma)$, ${\cal R}_{W\gamma}=\sigma(W^\pm\gamma)/\allowbreak\sigma(W^\pm)$, and...
[ { "created": "Thu, 8 Apr 1993 20:57:31 GMT", "version": "v1" } ]
2009-10-22
[ [ "Baur", "U.", "" ], [ "Errede", "S.", "" ], [ "Ohnemus", "J.", "" ] ]
The ratios ${\cal R}_{\gamma ,\ell}=B(Z\to\ell^+\ell^-)\cdot\sigma(Z\gamma) /\allowbreak B(W\to\ell\nu)\cdot\sigma(W^\pm\gamma)$, ${\cal R}_{\gamma , \nu}= B(Z\to\bar\nu\nu)\cdot\sigma(Z\gamma)/\allowbreak B(W\to\ell\nu)\cdot\sigma(W^ \pm\gamma)$, ${\cal R}_{W\gamma}=\sigma(W^\pm\gamma)/\allowbreak\sigma(W^\pm)$, and $...
0901.2208
Dmitri Kazakov
D.I.Kazakov
Radiative Corrections, Divergences, Regularization, Renormalization, Renormalization Group and All That in Examples in Quantum Field Theory
Lectures, 91 pages, 46 figures, Russian version can be found at http://theor.jinr.ru/~kazakovd
null
null
JINR, UC-2008-34
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The present lectures are a practical guide to the calculation of radiative corrections to the Green functions in quantum field theory. The appearance of ultraviolet divergences is explained, their classification is given, the renormalization procedure which allows one to get the finite results is described, and the b...
[ { "created": "Thu, 15 Jan 2009 09:49:15 GMT", "version": "v1" } ]
2009-01-16
[ [ "Kazakov", "D. I.", "" ] ]
The present lectures are a practical guide to the calculation of radiative corrections to the Green functions in quantum field theory. The appearance of ultraviolet divergences is explained, their classification is given, the renormalization procedure which allows one to get the finite results is described, and the bas...
1111.5813
Elliot Leader
Elliot Leader
Reply to the comment of Huey-Wen Lin and Keh-Fei Liu on "Controversy concerning the definition of quark and gluon angular momentum" by E. Leader (arXiv:1111.0678, PRD 83, 096012 (2011))
2 pages, no figures
null
10.1103/PhysRevD.85.058902
null
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Lin and Liu evaluate the nucleon expectation value of the non gauge-invariant canonical quark momentum operator on a lattice, and obtain zero. They conclude that my argument that, despite the non gauge-invariance of the operator, its physical matrix elements \emph{are} gauge-invariant, cannot be correct. I show that ...
[ { "created": "Thu, 24 Nov 2011 16:33:54 GMT", "version": "v1" } ]
2013-05-30
[ [ "Leader", "Elliot", "" ] ]
Lin and Liu evaluate the nucleon expectation value of the non gauge-invariant canonical quark momentum operator on a lattice, and obtain zero. They conclude that my argument that, despite the non gauge-invariance of the operator, its physical matrix elements \emph{are} gauge-invariant, cannot be correct. I show that th...
hep-ph/9912314
Gayane A. Amatuni
N.A. Korkhmazyan (Armenian Pedagogical Institute), N.N. Korkhmazyan (Armenian Pedagogical Institute)
On Quark-Lepton Symmetry
5 pages, 1 figure
null
null
null
hep-ph
null
The new quantum number is introduced. It is shown that the conservation of -number results in the conservation of difference between baryon and lepton numbers. The problem of quark-lepton symmetry is discussed. It is shown that the nature of quark-lepton symmetry stems from the fact that the particles of one generati...
[ { "created": "Sun, 12 Dec 1999 21:41:40 GMT", "version": "v1" } ]
2007-05-23
[ [ "Korkhmazyan", "N. A.", "", "Armenian Pedagogical Institute" ], [ "Korkhmazyan", "N. N.", "", "Armenian Pedagogical Institute" ] ]
The new quantum number is introduced. It is shown that the conservation of -number results in the conservation of difference between baryon and lepton numbers. The problem of quark-lepton symmetry is discussed. It is shown that the nature of quark-lepton symmetry stems from the fact that the particles of one generation...
hep-ph/0010160
Alessandro Papa
R. Fiore, L.L. Jenkovszky, E.A. Kuraev, A.I. Lengyel, F. Paccanoni, A. Papa
Finite sum of gluon ladders and high energy cross sections
18 pages, LaTeX, 2 EPS figures, uses axodraw.sty
Phys.Rev. D63 (2001) 056010
10.1103/PhysRevD.63.056010
DFPD 00/TH/48, UNICAL-TH 00/7
hep-ph
null
A model for the Pomeron at $t=0$ is suggested. It is based on the idea of a finite sum of ladder diagrams in QCD. Accordingly, the number of $s$-channel gluon rungs and correspondingly the powers of logarithms in the forward scattering amplitude depends on the phase space (energy) available, i.e. as energy increases,...
[ { "created": "Mon, 16 Oct 2000 09:59:21 GMT", "version": "v1" } ]
2009-10-31
[ [ "Fiore", "R.", "" ], [ "Jenkovszky", "L. L.", "" ], [ "Kuraev", "E. A.", "" ], [ "Lengyel", "A. I.", "" ], [ "Paccanoni", "F.", "" ], [ "Papa", "A.", "" ] ]
A model for the Pomeron at $t=0$ is suggested. It is based on the idea of a finite sum of ladder diagrams in QCD. Accordingly, the number of $s$-channel gluon rungs and correspondingly the powers of logarithms in the forward scattering amplitude depends on the phase space (energy) available, i.e. as energy increases, p...
hep-ph/0111187
Marcus Bleicher
M. Bleicher, F. M. Liu, A. Ker\"anen, J. Aichelin, S.A. Bass, F. Becattini, K. Redlich, K. Werner
Overpopulation of $\bar \Omega$ in pp collisions: a way to distinguish statistical hadronization from string dynamics
4 pages, 4 figures
Phys.Rev.Lett. 88 (2002) 202501
10.1103/PhysRevLett.88.202501
CERN-TH/2001-316
hep-ph
null
The $\bar{\Omega}/\Omega$ ratio originating from string decays is predicted to be larger than unity in proton proton interactions at SPS energies ($E_{\rm lab}$=160 GeV). The anti-omega dominance increases with decreasing beam energy. This surprising behavior is caused by the combinatorics of quark-antiquark producti...
[ { "created": "Thu, 15 Nov 2001 12:24:06 GMT", "version": "v1" } ]
2009-11-07
[ [ "Bleicher", "M.", "" ], [ "Liu", "F. M.", "" ], [ "Keränen", "A.", "" ], [ "Aichelin", "J.", "" ], [ "Bass", "S. A.", "" ], [ "Becattini", "F.", "" ], [ "Redlich", "K.", "" ], [ "Werner", "K.", ...
The $\bar{\Omega}/\Omega$ ratio originating from string decays is predicted to be larger than unity in proton proton interactions at SPS energies ($E_{\rm lab}$=160 GeV). The anti-omega dominance increases with decreasing beam energy. This surprising behavior is caused by the combinatorics of quark-antiquark production...
1606.02558
Jonathan Davis
Jonathan H. Davis
Projections for measuring the size of the solar core with neutrino-electron scattering
5 pages, 2 figures. Matches version accepted to PRL. Improved 2D analysis and results discussion
Phys. Rev. Lett. 117, 211101 (2016)
10.1103/PhysRevLett.117.211101
KCL-PH-TH/2016-36
hep-ph astro-ph.SR hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We quantify the amount of data needed in order to measure the size and position of the $^8$B neutrino production region within the solar core, for experiments looking at elastic scattering between electrons and solar neutrinos. The directions of the electrons immediately after scattering are strongly correlated with ...
[ { "created": "Wed, 8 Jun 2016 14:00:40 GMT", "version": "v1" }, { "created": "Mon, 20 Jun 2016 15:43:54 GMT", "version": "v2" }, { "created": "Mon, 31 Oct 2016 08:34:10 GMT", "version": "v3" } ]
2016-11-16
[ [ "Davis", "Jonathan H.", "" ] ]
We quantify the amount of data needed in order to measure the size and position of the $^8$B neutrino production region within the solar core, for experiments looking at elastic scattering between electrons and solar neutrinos. The directions of the electrons immediately after scattering are strongly correlated with th...
hep-ph/9909418
Stefano Moretti
A. Dedes (RAL) and S. Moretti (RAL and Uppsala University)
Effects of CP-violating phases on Higgs boson production at hadron colliders in the Minimal Supersymmetric Standard Model
31 pages, latex (uses axodraw.sty), 14 figures - typos corrected in Tab. I, eqs. (A.6) and (A.15): version to appear in Nucl. Phys. B
Nucl.Phys. B576 (2000) 29-55
10.1016/S0550-3213(00)00144-9
RAL-TR-1999-042, TSL/ISV-99-0218
hep-ph
null
If the soft Supersymmetry (SUSY) breaking masses and couplings are complex, then the associated CP-violating phases can in principle modify the known phenomenological pattern of the Minimal Supersymmetric Standard Model (MSSM). We investigate here their effects on Higgs boson production in the gluon-gluon fusion mode...
[ { "created": "Fri, 17 Sep 1999 13:02:14 GMT", "version": "v1" }, { "created": "Fri, 3 Mar 2000 16:47:54 GMT", "version": "v2" } ]
2009-10-31
[ [ "Dedes", "A.", "", "RAL" ], [ "Moretti", "S.", "", "RAL and Uppsala University" ] ]
If the soft Supersymmetry (SUSY) breaking masses and couplings are complex, then the associated CP-violating phases can in principle modify the known phenomenological pattern of the Minimal Supersymmetric Standard Model (MSSM). We investigate here their effects on Higgs boson production in the gluon-gluon fusion mode a...
1008.3785
Majid Hashemi
Majid Hashemi
Possibility of observing MSSM charged Higgs in association with a W boson at LHC
20 pages, 19 figures
Phys.Rev.D83:055004,2011
10.1103/PhysRevD.83.055004
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Possibility of observing associated production of charged Higgs and W boson in the framework of MSSM at LHC is studied. Both leptonic and hadronic decays of W boson are studied while the charged Higgs boson is considered to decay to a $\tau$ lepton and a neutrino. Therefore two search categories are defined based on ...
[ { "created": "Mon, 23 Aug 2010 09:59:08 GMT", "version": "v1" }, { "created": "Wed, 25 Aug 2010 05:30:17 GMT", "version": "v2" }, { "created": "Tue, 11 Jan 2011 13:11:35 GMT", "version": "v3" } ]
2011-03-21
[ [ "Hashemi", "Majid", "" ] ]
Possibility of observing associated production of charged Higgs and W boson in the framework of MSSM at LHC is studied. Both leptonic and hadronic decays of W boson are studied while the charged Higgs boson is considered to decay to a $\tau$ lepton and a neutrino. Therefore two search categories are defined based on th...
1501.03151
Dietrich Bodeker
D. Bodeker and M. Sangel
Order g^2 susceptibilities in the symmetric phase of the Standard Model
18 pages, 2 figures
null
10.1088/1475-7516/2015/04/040
BI-TP 2014/25
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Susceptibilities of conserved charges such as baryon minus lepton number enter baryogenesis computations, since they provide the relationship between conserved charges and chemical potentials. Their next-to-leading order corrections are of order g, where g is a generic Standard Model coupling. They are due to soft Hi...
[ { "created": "Tue, 13 Jan 2015 21:00:01 GMT", "version": "v1" } ]
2015-06-23
[ [ "Bodeker", "D.", "" ], [ "Sangel", "M.", "" ] ]
Susceptibilities of conserved charges such as baryon minus lepton number enter baryogenesis computations, since they provide the relationship between conserved charges and chemical potentials. Their next-to-leading order corrections are of order g, where g is a generic Standard Model coupling. They are due to soft Higg...
1504.04604
Yu-Feng Zhou
Hong-Bo Jin, Yue-Liang Wu, Yu-Feng Zhou
Upper limits on DM annihilation cross sections from the first AMS-02 antiproton data
15 pages, 6 figures. More discussions on DM contributions added, to appear in PRD. arXiv admin note: text overlap with arXiv:1410.0171
Phys. Rev. D 92, 055027 (2015)
10.1103/PhysRevD.92.055027
null
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The first measurement on the antiproton to proton ratio made by the AMS-02 collaboration agrees with the expection from conventional cosmic-ray secondaries in the kinetic energy range $\sim 10-100$ GeV, which can be turned into stringent upper limits on the dark matter (DM) annihilation cross sections above $\sim 300...
[ { "created": "Fri, 17 Apr 2015 18:59:15 GMT", "version": "v1" }, { "created": "Wed, 29 Apr 2015 15:57:16 GMT", "version": "v2" }, { "created": "Thu, 27 Aug 2015 12:29:17 GMT", "version": "v3" } ]
2015-09-30
[ [ "Jin", "Hong-Bo", "" ], [ "Wu", "Yue-Liang", "" ], [ "Zhou", "Yu-Feng", "" ] ]
The first measurement on the antiproton to proton ratio made by the AMS-02 collaboration agrees with the expection from conventional cosmic-ray secondaries in the kinetic energy range $\sim 10-100$ GeV, which can be turned into stringent upper limits on the dark matter (DM) annihilation cross sections above $\sim 300$ ...
2102.13175
Ulugbek Yakhshiev
Ulugbek Yakhshiev
Test of the nonrelativistic $c\bar{c}$ potential
5 pages
null
10.1007/s40042-021-00234-8
null
hep-ph nucl-th
http://creativecommons.org/licenses/by/4.0/
We analyze the charmonium states by testing a phenomenological nonrelativistic potential and propose a new set of parameters. This new set of parameters are fixed using only the lowest lying S-wave states of charmonia where the spin-orbit and tensor interactions will not contribute. After fitting the parameters we an...
[ { "created": "Thu, 25 Feb 2021 21:05:11 GMT", "version": "v1" } ]
2021-07-14
[ [ "Yakhshiev", "Ulugbek", "" ] ]
We analyze the charmonium states by testing a phenomenological nonrelativistic potential and propose a new set of parameters. This new set of parameters are fixed using only the lowest lying S-wave states of charmonia where the spin-orbit and tensor interactions will not contribute. After fitting the parameters we anal...
1710.02463
Nelia Mann
Ziyi Hu, Brian Maddock, Nelia Mann
A Second Look at String-Inspired Models for Proton-Proton Scattering via Pomeron Exchange
16 pages, 7 figures, 2 tables
null
10.1007/JHEP08(2018)093
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We re-examine a string dual model for elastic proton-proton scattering via Pomeron exchange. We argue that the method of "Reggeizing" a propagator to take into account an entire trajectory of exchanged particles can be generalized, in particular by modifying the value of the mass-shell parameter in the model. We then...
[ { "created": "Fri, 6 Oct 2017 15:51:30 GMT", "version": "v1" } ]
2018-09-26
[ [ "Hu", "Ziyi", "" ], [ "Maddock", "Brian", "" ], [ "Mann", "Nelia", "" ] ]
We re-examine a string dual model for elastic proton-proton scattering via Pomeron exchange. We argue that the method of "Reggeizing" a propagator to take into account an entire trajectory of exchanged particles can be generalized, in particular by modifying the value of the mass-shell parameter in the model. We then f...
2212.01794
Michael Fucilla
Michael Fucilla
The Higgs impact factor at next-to-leading order
6 pages, 2 Figures. Presented by Michael Fucilla at Diffraction and Low-x 2022, Corigliano Calabro (Italy), September 24-30, 2022
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We compute at next-to-leading order level the impact factor for the production of a forward Higgs boson from a colliding proton. Combined with other forward impact factors, it can be used to describe, at next-to-leading logarithmic accuracy, processes in which two objects featuring large separation in rapidity are de...
[ { "created": "Sun, 4 Dec 2022 10:45:53 GMT", "version": "v1" } ]
2022-12-06
[ [ "Fucilla", "Michael", "" ] ]
We compute at next-to-leading order level the impact factor for the production of a forward Higgs boson from a colliding proton. Combined with other forward impact factors, it can be used to describe, at next-to-leading logarithmic accuracy, processes in which two objects featuring large separation in rapidity are dete...
hep-ph/9605225
null
Stefano Moretti (Cavendish Laboratory, Cambridge, UK)
The process $e^+e^-\to b\bar bW^+W^-$ at the Next Linear Collider in the Minimal Supersymmetric Standard Model
43 pages, latex, 20 PostScript figures included, complete file and full resolution figures available at ftp://axpa.hep.phy.cam.ac.uk/moretti or at http://www.hep.phy.cam.ac.uk/theory/papers/
Z.Phys. C73 (1997) 653-668
null
Cavendish-HEP-96/03, DFTT 19/96
hep-ph
null
The complete matrix element for $e^+e^-\rightarrow b\bar b W^+W^-$ is computed at tree-level within the Minimal Supersymmetric Standard Model. Rates of interest to phenomenological analyses at the Next Linear Collider are given. In particular, we study: - $t\bar t$ production and decay $t\bar t\ar (bW^+)(\bar bW^-)$;...
[ { "created": "Sun, 5 May 1996 16:38:38 GMT", "version": "v1" } ]
2007-05-23
[ [ "Moretti", "Stefano", "", "Cavendish Laboratory, Cambridge, UK" ] ]
The complete matrix element for $e^+e^-\rightarrow b\bar b W^+W^-$ is computed at tree-level within the Minimal Supersymmetric Standard Model. Rates of interest to phenomenological analyses at the Next Linear Collider are given. In particular, we study: - $t\bar t$ production and decay $t\bar t\ar (bW^+)(\bar bW^-)$; -...
1610.00009
Matthias Neubert
Martin Bauer (U. Heidelberg), Matthias Neubert (MITP and JGU Mainz, Cornell U.) and Andrea Thamm (JGU Mainz)
Analyzing the CP Nature of a New Scalar Particle via S->Zh Decay
This letter is a significantly rewritten descendent of our previous work arXiv:1607.01016, which was motivated by the 750 GeV diphoton resonance. The current version contains relevant new material and is independent of the existence of such a resonance (6 pages, 4 figures; accepted for publication in Phys. Rev....
Phys. Rev. Lett. 117, 181801 (2016)
10.1103/PhysRevLett.117.181801
MITP/16-105
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Scalar particles $S$ which are singlets under the Standard Model gauge group are generic features of many models of fundamental physics, in particular as possible mediators to a hidden sector. We show that the decay $S\to Zh$ provides a powerful probe of the CP nature of the scalar, because it is allowed only if $S$ ...
[ { "created": "Fri, 30 Sep 2016 20:00:02 GMT", "version": "v1" } ]
2016-11-02
[ [ "Bauer", "Martin", "", "U. Heidelberg" ], [ "Neubert", "Matthias", "", "MITP and JGU Mainz,\n Cornell U." ], [ "Thamm", "Andrea", "", "JGU Mainz" ] ]
Scalar particles $S$ which are singlets under the Standard Model gauge group are generic features of many models of fundamental physics, in particular as possible mediators to a hidden sector. We show that the decay $S\to Zh$ provides a powerful probe of the CP nature of the scalar, because it is allowed only if $S$ ha...
2005.03016
Rhorry Gauld
R. Gauld, A. Gehrmann-De Ridder, E. W. N. Glover, A. Huss, I. Majer
Predictions for $\mathrm{Z}$-boson production in association with a $\mathrm{b}$-jet at $\mathcal{O}(\alpha_s^3)$
7 pages including references, 3 figures. v2 matches PRL version
null
10.1103/PhysRevLett.125.222002
NIKHEF 2020-012, ZU-TH 12/20, IPPP/20/13, CERN-TH-2020-071
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Precise predictions are provided for the production of a $\mathrm{Z}$-boson and a $\mathrm{b}$-jet in hadron-hadron collisions within the framework of perturbative QCD, at $\mathcal{O}(\alpha_s^3)$. To obtain these predictions we perform the first calculation of a hadronic scattering process involving the direct prod...
[ { "created": "Wed, 6 May 2020 18:00:00 GMT", "version": "v1" }, { "created": "Mon, 11 Jan 2021 11:51:45 GMT", "version": "v2" } ]
2021-01-12
[ [ "Gauld", "R.", "" ], [ "Ridder", "A. Gehrmann-De", "" ], [ "Glover", "E. W. N.", "" ], [ "Huss", "A.", "" ], [ "Majer", "I.", "" ] ]
Precise predictions are provided for the production of a $\mathrm{Z}$-boson and a $\mathrm{b}$-jet in hadron-hadron collisions within the framework of perturbative QCD, at $\mathcal{O}(\alpha_s^3)$. To obtain these predictions we perform the first calculation of a hadronic scattering process involving the direct produc...
1512.00913
Teruyuki Kitabayashi
Teruyuki Kitabayashi and Masaki Yasu\`e
Formulae for flavour neutrino masses and its application to texture two zeros
8 pages, 2 figures, version accepted for publication in Physical Review D
Phys. Rev. D 93, 053012 (2016)
10.1103/PhysRevD.93.053012
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We demonstrate the usefulness of flavour neutrino masses expressed in terms of $M_{ee},M_{e\mu}$ and $M_{e\tau}$. The analytical expressions for the flavour neutrino masses, mass eigenstates and physical CP-violating Majorana phases for texture two zeros are obtained exactly.
[ { "created": "Thu, 3 Dec 2015 00:41:06 GMT", "version": "v1" }, { "created": "Wed, 24 Feb 2016 02:11:13 GMT", "version": "v2" } ]
2016-03-30
[ [ "Kitabayashi", "Teruyuki", "" ], [ "Yasuè", "Masaki", "" ] ]
We demonstrate the usefulness of flavour neutrino masses expressed in terms of $M_{ee},M_{e\mu}$ and $M_{e\tau}$. The analytical expressions for the flavour neutrino masses, mass eigenstates and physical CP-violating Majorana phases for texture two zeros are obtained exactly.
hep-ph/0311307
Ilya Lvovich Shapiro
Ilya L. Shapiro
An Overview of the Anomaly-Induced Inflation
Talk presented at IRGA2003 (Renormalization Group and Anomalies in Gravitation and Cosmology, Ouro Preto, Brazil, 16-23 March, 2003)
null
10.1016/S0920-5632(03)02431-9
null
hep-ph
null
The anomaly-induced inflation (modified Starobinsky model) is based on the application of the effective quantum field theory approach to the Early Universe. We present a brief general review of this model with a special attention to the existing difficulties and unsolved problems.
[ { "created": "Mon, 24 Nov 2003 17:50:39 GMT", "version": "v1" } ]
2009-11-10
[ [ "Shapiro", "Ilya L.", "" ] ]
The anomaly-induced inflation (modified Starobinsky model) is based on the application of the effective quantum field theory approach to the Early Universe. We present a brief general review of this model with a special attention to the existing difficulties and unsolved problems.
hep-ph/9902377
A. N. Mitra
A.N.Mitra
Soft-QCD Effects In B to gamma gamma Decay: Quark Level Form Factors
11 pages, 1 figure, LaTex
null
10.1016/S0370-2693(99)01504-X
null
hep-ph
null
Soft-QCD effects of quark-level form factors in $\gamma\gamma$ decay of $B_s$-mesons via $D{\bar D}$ intermediate states, suggested by Ellis et al, are examined in the "Salpeter" model [reinterpreted in terms of the Markov-Yukawa Transversality Principle (MYTP)] when formulated on a covariant light front (null-plane)...
[ { "created": "Wed, 17 Feb 1999 16:49:13 GMT", "version": "v1" }, { "created": "Tue, 8 Jun 1999 12:53:04 GMT", "version": "v2" }, { "created": "Sun, 17 Oct 1999 15:17:28 GMT", "version": "v3" } ]
2009-10-31
[ [ "Mitra", "A. N.", "" ] ]
Soft-QCD effects of quark-level form factors in $\gamma\gamma$ decay of $B_s$-mesons via $D{\bar D}$ intermediate states, suggested by Ellis et al, are examined in the "Salpeter" model [reinterpreted in terms of the Markov-Yukawa Transversality Principle (MYTP)] when formulated on a covariant light front (null-plane). ...
hep-ph/9703435
David Bowser-Chao
David Bowser-Chao, Darwin Chang, Wai-Yee Keung
Electron Electric Dipole Moment from CP Violation in the Charged Higgs Sector
resubmission now matches published version in PRL, plus adds reference to AGS proposal to measure the muon edm to 10^-24 e-cm; complete uncompressed postscript at http://hepster.phy.uic.edu/~davechao/work/default.html
Phys.Rev.Lett.79:1988-1991,1997
10.1103/PhysRevLett.79.1988
NHCU-HEP-97-5, UICHEP-TH/97-3
hep-ph
null
The leading contributions to the electron (or muon) electric dipole moment due to CP violation in the charged Higgs sector are at the two-loop level. A careful analysis of the model-independent contribution is provided. We also consider specific scenarios to demonstrate how charged Higgs sector CP violation can natur...
[ { "created": "Wed, 26 Mar 1997 22:34:12 GMT", "version": "v1" }, { "created": "Tue, 2 Dec 1997 23:15:08 GMT", "version": "v2" } ]
2009-09-01
[ [ "Bowser-Chao", "David", "" ], [ "Chang", "Darwin", "" ], [ "Keung", "Wai-Yee", "" ] ]
The leading contributions to the electron (or muon) electric dipole moment due to CP violation in the charged Higgs sector are at the two-loop level. A careful analysis of the model-independent contribution is provided. We also consider specific scenarios to demonstrate how charged Higgs sector CP violation can natural...