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1708.05776
Babette D\"obrich
Babette D\"obrich
Axion-like Particles from Primakov production in beam-dumps
contribution to PHOTON 2017 at CERN, May 22-26
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss searches for Axion-like Particles which are coupled predominantly to photons from proton- or electron beam-dumps. In particular, we scrutinize the present state of exclusions from SLAC 141 in the mass range of $\sim$ 10-30 MeV
[ { "created": "Fri, 18 Aug 2017 22:12:12 GMT", "version": "v1" } ]
2017-08-22
[ [ "Döbrich", "Babette", "" ] ]
We discuss searches for Axion-like Particles which are coupled predominantly to photons from proton- or electron beam-dumps. In particular, we scrutinize the present state of exclusions from SLAC 141 in the mass range of $\sim$ 10-30 MeV
1509.00955
Astrid Nathalie Hiller Blin
Astrid Hiller Blin, Thomas Gutsche, Tim Ledwig and Valery E. Lyubovitskij
Hyperon forward spin polarizability gamma0 in baryon chiral perturbation theory
null
Phys. Rev. D 92, 096004 (2015)
10.1103/PhysRevD.92.096004
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present the calculation of the hyperon forward spin polarizability gamma0 using manifestly Lorentz covariant baryon chiral perturbation theory including the intermediate contribution of the spin 3/2 states. As at the considered order the extraction of gamma0 is a pure prediction of chiral perturbation theory, the ...
[ { "created": "Thu, 3 Sep 2015 07:01:28 GMT", "version": "v1" } ]
2015-11-11
[ [ "Blin", "Astrid Hiller", "" ], [ "Gutsche", "Thomas", "" ], [ "Ledwig", "Tim", "" ], [ "Lyubovitskij", "Valery E.", "" ] ]
We present the calculation of the hyperon forward spin polarizability gamma0 using manifestly Lorentz covariant baryon chiral perturbation theory including the intermediate contribution of the spin 3/2 states. As at the considered order the extraction of gamma0 is a pure prediction of chiral perturbation theory, the ob...
1212.6554
Yogiro Hama
Yogiro Hama, Rone P. G. Andrade, Frederique Grassi, Jorge Noronha and Wei-Liang Qian
Further results on peripheral-tube model for ridge correlation
6 pages, 3 figures, prepared for ISMD 2012 Proceedings
null
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Peripheral one-tube model has shown to be a nice tool for dynamically understanding several aspects of ridge structures in long-range two-particle correlations, observed experimentally and obtained also in our model calculations using NexSPheRIO code. Here, we study an extension of the model, to initial configuration...
[ { "created": "Fri, 28 Dec 2012 19:07:06 GMT", "version": "v1" } ]
2013-01-01
[ [ "Hama", "Yogiro", "" ], [ "Andrade", "Rone P. G.", "" ], [ "Grassi", "Frederique", "" ], [ "Noronha", "Jorge", "" ], [ "Qian", "Wei-Liang", "" ] ]
Peripheral one-tube model has shown to be a nice tool for dynamically understanding several aspects of ridge structures in long-range two-particle correlations, observed experimentally and obtained also in our model calculations using NexSPheRIO code. Here, we study an extension of the model, to initial configurations ...
0804.1045
Dimitrios Metaxas
Dimitrios Metaxas
Effects of the cosmological expansion on the bubble nucleation rate for relativistic first-order phase transitions
14 pages, LaTeX, no figures, final version to appear in PRD
Phys.Rev.D78:063533,2008
10.1103/PhysRevD.78.063533
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
I calculate the first corrections to the dynamical pre-exponential factor of the bubble nucleation rate for a relativistic first-order phase transition in an expanding cosmological background by estimating the effects of the Hubble expansion rate on the critical bubbles of Langer's statistical theory of metastability...
[ { "created": "Mon, 7 Apr 2008 14:39:43 GMT", "version": "v1" }, { "created": "Thu, 17 Apr 2008 20:59:33 GMT", "version": "v2" }, { "created": "Mon, 1 Sep 2008 14:38:59 GMT", "version": "v3" } ]
2009-02-23
[ [ "Metaxas", "Dimitrios", "" ] ]
I calculate the first corrections to the dynamical pre-exponential factor of the bubble nucleation rate for a relativistic first-order phase transition in an expanding cosmological background by estimating the effects of the Hubble expansion rate on the critical bubbles of Langer's statistical theory of metastability. ...
2301.03483
Jialun Ping
ManYing Pan, Xinmei Zhu, Jialun Ping
Is $d^*(2380)$ a compact hexaquark state?
7 pages, 8 tables
Eur. Phys. J. C 83 (2023) 645
10.1140/epjc/s10052-023-11814-2
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The most fascinating dibaryon in the non-strange quark sector is $d^*(2380)$, which was reported by WASA-at-COSY Collaboration and confirmed by A2@MAMI Collaboration. The reported mass and width are $M\approx2.37$ GeV, $\Gamma\approx70$ MeV and the quantum numbers $IJ^P=03^+$. The structure of $d^*(2380)$ is still in...
[ { "created": "Mon, 9 Jan 2023 16:16:18 GMT", "version": "v1" }, { "created": "Sun, 23 Jul 2023 10:35:50 GMT", "version": "v2" } ]
2023-08-09
[ [ "Pan", "ManYing", "" ], [ "Zhu", "Xinmei", "" ], [ "Ping", "Jialun", "" ] ]
The most fascinating dibaryon in the non-strange quark sector is $d^*(2380)$, which was reported by WASA-at-COSY Collaboration and confirmed by A2@MAMI Collaboration. The reported mass and width are $M\approx2.37$ GeV, $\Gamma\approx70$ MeV and the quantum numbers $IJ^P=03^+$. The structure of $d^*(2380)$ is still in c...
hep-ph/9504278
Owe Philipsen
W. Buchmuller, O. Philipsen
Abelian versus Non-Abelian Higgs Model in Three Dimensions
8 pages Latex, 4 figures in separate uu-file
Phys.Lett. B354 (1995) 403-408
10.1016/0370-2693(95)00708-S
DESY 95-045, OUTP 95-10 P
hep-ph
null
We study the phase structure of the abelian Higgs model in three dimensions based on perturbation theory and a set of gauge independent gap equations for Higgs boson and vector boson masses. Contrary to the non-abelian Higgs model, the vector boson mass vanishes in the symmetric phase. In the Higgs phase the gap equa...
[ { "created": "Tue, 11 Apr 1995 10:16:48 GMT", "version": "v1" } ]
2009-10-28
[ [ "Buchmuller", "W.", "" ], [ "Philipsen", "O.", "" ] ]
We study the phase structure of the abelian Higgs model in three dimensions based on perturbation theory and a set of gauge independent gap equations for Higgs boson and vector boson masses. Contrary to the non-abelian Higgs model, the vector boson mass vanishes in the symmetric phase. In the Higgs phase the gap equati...
1704.07343
Peter Onyisi
Peter Onyisi and Aaron Webb
Impact of Rare Decays $t \to \ell' \nu b \ell\ell$ and $t \to q q' b \ell\ell$ on Searches for Top-Associated Physics
13 pages, 6 figures
JHEP 02(2018) 156
10.1007/JHEP02(2018)156
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Searches for top quark-associated physics such as $t\bar t W$ or $t\bar t H$ in final states with multiple leptons require a careful accounting of expected backgrounds due to the lack of reconstructible resonances. We demonstrate that the rare top quark decays $t \to \ell' \nu b \ell\ell$ and $t \to q q' b \ell\ell$,...
[ { "created": "Mon, 24 Apr 2017 17:37:38 GMT", "version": "v1" }, { "created": "Tue, 27 Feb 2018 22:04:51 GMT", "version": "v2" } ]
2018-03-01
[ [ "Onyisi", "Peter", "" ], [ "Webb", "Aaron", "" ] ]
Searches for top quark-associated physics such as $t\bar t W$ or $t\bar t H$ in final states with multiple leptons require a careful accounting of expected backgrounds due to the lack of reconstructible resonances. We demonstrate that the rare top quark decays $t \to \ell' \nu b \ell\ell$ and $t \to q q' b \ell\ell$, w...
hep-ph/0409133
Jong-Phil Lee
Y.J. Kwon and Jong-Phil Lee
Implications of the first observation of $B\to K_1\gamma$
4 pages, 3 figures
Phys.Rev. D71 (2005) 014009
10.1103/PhysRevD.71.014009
null
hep-ph
null
Implications of the recent new measurements of $B\to K_1\gamma$ by Belle are examined. It is shown that the new branching ratio $\calB(B\to K_1(1270)\gamma)$ requires very large form factor compared to the theoretically predicted one. This is an opposite case to $B\to K^*\gamma$ where theory expected larger branching...
[ { "created": "Sat, 11 Sep 2004 06:50:34 GMT", "version": "v1" } ]
2009-11-10
[ [ "Kwon", "Y. J.", "" ], [ "Lee", "Jong-Phil", "" ] ]
Implications of the recent new measurements of $B\to K_1\gamma$ by Belle are examined. It is shown that the new branching ratio $\calB(B\to K_1(1270)\gamma)$ requires very large form factor compared to the theoretically predicted one. This is an opposite case to $B\to K^*\gamma$ where theory expected larger branching r...
hep-ph/0611063
Antoni Szczurek
Antoni Szczurek
Central meson production in diffractive reactions
7 pages, 6 figures a talk at International Workshop on Diffraction in High-Energy Physics - DIFFRACTION 2006, Adamantas, Milos island, Greece, September 5-10, 2006
PoSDIFF2006:056,2006
null
null
hep-ph
null
I discuss double-diffractive (double-elastic) production of the $\eta'$ and $\eta_c$ mesons in the $pp \to p X p$ reaction within the formalism of unintegrated gluon distribution functions (UGDF). The contribution of $\gamma^* \gamma^* \to \eta'$ fusion is estimated. The distributions in the Feynman $x_F$ (or rapidit...
[ { "created": "Mon, 6 Nov 2006 18:17:34 GMT", "version": "v1" } ]
2008-11-26
[ [ "Szczurek", "Antoni", "" ] ]
I discuss double-diffractive (double-elastic) production of the $\eta'$ and $\eta_c$ mesons in the $pp \to p X p$ reaction within the formalism of unintegrated gluon distribution functions (UGDF). The contribution of $\gamma^* \gamma^* \to \eta'$ fusion is estimated. The distributions in the Feynman $x_F$ (or rapidity)...
hep-ph/0602123
Mattias Marklund
M. Marklund and P. K. Shukla
Nonlinear collective effects in photon-photon and photon-plasma interactions
47 pages, accepted for publication in Rev. Mod. Phys
Rev.Mod.Phys.78:591-640,2006
10.1103/RevModPhys.78.591
null
hep-ph
null
We consider strong-field effects in laboratory and astrophysical plasmas and high intensity laser and cavity systems. Current state-of-the-art laser facilities are close to reaching energy scales at which quantum electrodynamics will play a crucial role in the dynamics of plasmas and indeed the vacuum itself. Develop...
[ { "created": "Tue, 14 Feb 2006 10:19:49 GMT", "version": "v1" } ]
2008-11-26
[ [ "Marklund", "M.", "" ], [ "Shukla", "P. K.", "" ] ]
We consider strong-field effects in laboratory and astrophysical plasmas and high intensity laser and cavity systems. Current state-of-the-art laser facilities are close to reaching energy scales at which quantum electrodynamics will play a crucial role in the dynamics of plasmas and indeed the vacuum itself. Developme...
1702.05098
Dorival Goncalves
Dorival Goncalves, Tilman Plehn, Jennifer M. Thompson
Weak Boson Fusion at 100 TeV
18 pages, 16 figures
Phys. Rev. D 95, 095011 (2017)
10.1103/PhysRevD.95.095011
PITT-PACC-1702
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
From the LHC runs we know that, with increasing collider energy, weak-boson-fusion Higgs production dominates as an environment for precision measurements. We show how a future hadron collider performs for three challenging benchmark signatures. Because all of these measurements rely on the tagging jet signature, we ...
[ { "created": "Thu, 16 Feb 2017 19:00:01 GMT", "version": "v1" } ]
2017-05-24
[ [ "Goncalves", "Dorival", "" ], [ "Plehn", "Tilman", "" ], [ "Thompson", "Jennifer M.", "" ] ]
From the LHC runs we know that, with increasing collider energy, weak-boson-fusion Higgs production dominates as an environment for precision measurements. We show how a future hadron collider performs for three challenging benchmark signatures. Because all of these measurements rely on the tagging jet signature, we fi...
1511.07736
Seyed Yaser Ayazi
Seyed Yaser Ayazi, S. Mahdi Firouzabadi and S. Peyman Zakeri
Freeze-in production of Fermionic Dark Matter with Pseudo-scalar and Phenomenological Aspects
29 pages, 11 figures
null
10.1088/0954-3899/43/9/095006
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, we study freeze-in production of fermionic dark matter with a pseudo scalar as the mediator between dark sector and Standard Model (SM). While the fermionic DM is non-thermal, we will explain two scenarios in which production of pseudo-scalar particles are either thermal or non thermal. We'll present e...
[ { "created": "Tue, 24 Nov 2015 14:45:20 GMT", "version": "v1" }, { "created": "Sun, 19 Jun 2016 22:28:49 GMT", "version": "v2" } ]
2016-09-21
[ [ "Ayazi", "Seyed Yaser", "" ], [ "Firouzabadi", "S. Mahdi", "" ], [ "Zakeri", "S. Peyman", "" ] ]
In this paper, we study freeze-in production of fermionic dark matter with a pseudo scalar as the mediator between dark sector and Standard Model (SM). While the fermionic DM is non-thermal, we will explain two scenarios in which production of pseudo-scalar particles are either thermal or non thermal. We'll present ela...
2202.09066
Hyun-Chul Kim
Jung-Min Suh, Yu-Son Jun, Hyun-Chul Kim
Axial-vector transition form factors of the baryon octet to the baryon decuplet with flavor SU(3) symmetry breaking
22 pages, 4 figures. Final version accepted for publication in Physical Review D
null
10.1103/PhysRevD.105.114040
INHA-NTG-01/2022
hep-ph hep-ex hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the axial-vector transition form factors of the baryon octet to the baryon decuplet within the framework of the chiral quark-soliton model, with the effects of flavor SU(3) symmetry breaking included. We consider the rotational $1/N_c$ corrections and regard the strange current quark mass as a perturba...
[ { "created": "Fri, 18 Feb 2022 08:14:53 GMT", "version": "v1" }, { "created": "Thu, 16 Jun 2022 04:59:31 GMT", "version": "v2" } ]
2022-07-13
[ [ "Suh", "Jung-Min", "" ], [ "Jun", "Yu-Son", "" ], [ "Kim", "Hyun-Chul", "" ] ]
We investigate the axial-vector transition form factors of the baryon octet to the baryon decuplet within the framework of the chiral quark-soliton model, with the effects of flavor SU(3) symmetry breaking included. We consider the rotational $1/N_c$ corrections and regard the strange current quark mass as a perturbati...
1405.6897
Stefan Dittmaier
Stefan Dittmaier, Alexander Huss, Christian Schwinn
O(\alpha_s\alpha) corrections to Drell-Yan processes in the resonance region
9 pages, latex, postscript figures, contribution to the proceedings of the conference "Loops and Legs in Quantum Field Theory - LL 2014, 27 April - 2 May 2014, Weimar, Germany, discussion of factorizable O(\alpha_s\alpha) corrections extended in version 2
null
null
FR-PHENO-2014-005
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Drell-Yan-like W-boson and Z-boson production in the resonance region allows for some high-precision measurements that are crucial to carry experimental tests of the Standard Model to the extremes, such as the determinations of the W-boson mass and the effective weak mixing angle. We describe how the Standard Model p...
[ { "created": "Tue, 27 May 2014 13:03:55 GMT", "version": "v1" }, { "created": "Mon, 14 Jul 2014 16:25:06 GMT", "version": "v2" } ]
2014-07-15
[ [ "Dittmaier", "Stefan", "" ], [ "Huss", "Alexander", "" ], [ "Schwinn", "Christian", "" ] ]
Drell-Yan-like W-boson and Z-boson production in the resonance region allows for some high-precision measurements that are crucial to carry experimental tests of the Standard Model to the extremes, such as the determinations of the W-boson mass and the effective weak mixing angle. We describe how the Standard Model pre...
2301.05607
Anastasia Boushmelev
Anastasia Boushmelev and Thomas Mannel and K. Keri Vos
Alternative Treatment of the Quark Mass in the Heavy Quark Expansion
20 pages
null
10.1007/JHEP07(2023)175
SI-HEP-2023-01 NIKHEF-2023-001
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The treatment of the quark mass plays an important role when it comes to increasing the precision of the predictions of the heavy quark expansion for inclusive heavy hadron decays. Various short-distance mass schemes have been invented to minimize the uncertainties induced by the quark mass, which needs to be extract...
[ { "created": "Fri, 13 Jan 2023 15:23:39 GMT", "version": "v1" } ]
2023-08-09
[ [ "Boushmelev", "Anastasia", "" ], [ "Mannel", "Thomas", "" ], [ "Vos", "K. Keri", "" ] ]
The treatment of the quark mass plays an important role when it comes to increasing the precision of the predictions of the heavy quark expansion for inclusive heavy hadron decays. Various short-distance mass schemes have been invented to minimize the uncertainties induced by the quark mass, which needs to be extracted...
1308.0231
Selym Villalba-Chavez Dr.
S. Ahrens, T. O. M\"uller, S. Villalba-Ch\'avez, H. Bauke and C. M\"uller
Spin effects in strong-field laser-electron interactions
9 pages, 6 figures
J.Phys.:Conf.Ser.414(2013)012012
10.1088/1742-6596/414/1/012012
null
hep-ph physics.atom-ph quant-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The electron spin degree of freedom can play a significant role in relativistic scattering processes involving intense laser fields. In this contribution we discuss the influence of the electron spin on (i) Kapitza-Dirac scattering in an x-ray laser field of high intensity, (ii) photo-induced electron-positron pair p...
[ { "created": "Thu, 1 Aug 2013 14:53:04 GMT", "version": "v1" }, { "created": "Fri, 2 Aug 2013 10:44:04 GMT", "version": "v2" } ]
2013-08-05
[ [ "Ahrens", "S.", "" ], [ "Müller", "T. O.", "" ], [ "Villalba-Chávez", "S.", "" ], [ "Bauke", "H.", "" ], [ "Müller", "C.", "" ] ]
The electron spin degree of freedom can play a significant role in relativistic scattering processes involving intense laser fields. In this contribution we discuss the influence of the electron spin on (i) Kapitza-Dirac scattering in an x-ray laser field of high intensity, (ii) photo-induced electron-positron pair pro...
hep-ph/9812507
null
Reginald T. Cahill, Susan M. Gunner (Department of Physics, Flinders University)
Low Energy Quark-Gluon Processes from Experimental Data using the Global Colour Model
null
null
null
null
hep-ph
null
The Global Colour Model(GCM) of QCD is used to extract low energy quark-gluon processes from experimental data. The resultant effective quark-quark coupling correlator is compared with that of Jain and Munczek, and with the combined lattice results of Marenzoni et al. and Skullerud, and with the two-loop form. The re...
[ { "created": "Mon, 28 Dec 1998 05:52:26 GMT", "version": "v1" } ]
2007-05-23
[ [ "Cahill", "Reginald T.", "", "Department of Physics, Flinders\n University" ], [ "Gunner", "Susan M.", "", "Department of Physics, Flinders\n University" ] ]
The Global Colour Model(GCM) of QCD is used to extract low energy quark-gluon processes from experimental data. The resultant effective quark-quark coupling correlator is compared with that of Jain and Munczek, and with the combined lattice results of Marenzoni et al. and Skullerud, and with the two-loop form. The resu...
hep-ph/0204025
Paolo Nason
M. Cacciari and P. Nason
Is There a Significant Excess in Bottom Hadroproduction at the Tevatron?
5 pages, Latex, 4 figures. Submitted to Phys. Rev. Lett
Phys.Rev.Lett. 89 (2002) 122003
10.1103/PhysRevLett.89.122003
Bicocca-FT-02-5, UPRF-2002-4
hep-ph
null
We discuss the excess in the hadroproduction of B mesons at the Tevatron. We show that an accurate use of up-to-date information on the B fragmentation function reduces the observed excess to an acceptable level. Possible implications for experimental results reporting bottom quark cross sections, also showing an exc...
[ { "created": "Tue, 2 Apr 2002 16:24:39 GMT", "version": "v1" } ]
2009-11-07
[ [ "Cacciari", "M.", "" ], [ "Nason", "P.", "" ] ]
We discuss the excess in the hadroproduction of B mesons at the Tevatron. We show that an accurate use of up-to-date information on the B fragmentation function reduces the observed excess to an acceptable level. Possible implications for experimental results reporting bottom quark cross sections, also showing an exces...
hep-ph/0102136
Domenico Falcone
D. Falcone, F. Tramontano
Neutrino oscillations and neutrinoless double beta decay
RevTex, 9 pages with 3 figures. Few comments and references added
Phys.Rev. D64 (2001) 077302
10.1103/PhysRevD.64.077302
DSF-07/2001
hep-ph
null
The relation between neutrino oscillation parameters and neutrinoless double beta decay is studied, assuming normal and inverse hierarchies for Majorana neutrino masses. For normal hierarchy the crucial dependence on U_{e3} is explored. The link with tritium beta decay is also briefly discussed.
[ { "created": "Mon, 12 Feb 2001 14:02:46 GMT", "version": "v1" }, { "created": "Thu, 15 Feb 2001 09:20:28 GMT", "version": "v2" }, { "created": "Fri, 16 Mar 2001 15:00:53 GMT", "version": "v3" } ]
2009-11-07
[ [ "Falcone", "D.", "" ], [ "Tramontano", "F.", "" ] ]
The relation between neutrino oscillation parameters and neutrinoless double beta decay is studied, assuming normal and inverse hierarchies for Majorana neutrino masses. For normal hierarchy the crucial dependence on U_{e3} is explored. The link with tritium beta decay is also briefly discussed.
2407.02487
Simone Marciano
Alessio Giarnetti, Simone Marciano, Davide Meloni
On quark-lepton mixing and the leptonic CP violation
null
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
In the absence of a Grand Unified Theory framework, connecting the values of the mixing parameters in the quark and lepton sector is a difficult task, unless one introduces ad-hoc relations among the matrices that diagonalize such different kinds of fermions. In this paper, we discuss in detail the possibility that t...
[ { "created": "Tue, 2 Jul 2024 17:59:42 GMT", "version": "v1" } ]
2024-07-03
[ [ "Giarnetti", "Alessio", "" ], [ "Marciano", "Simone", "" ], [ "Meloni", "Davide", "" ] ]
In the absence of a Grand Unified Theory framework, connecting the values of the mixing parameters in the quark and lepton sector is a difficult task, unless one introduces ad-hoc relations among the matrices that diagonalize such different kinds of fermions. In this paper, we discuss in detail the possibility that the...
2012.05406
George Wojcik
George N. Wojcik and Thomas G. Rizzo
$SU(4)$ Flavorful Portal Matter
53 pages plus references, 8 figures. v4: Some discussions added
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
In this paper, we present a model which attempts to unify a new dark sector force with a local $SU(3)$ flavor symmetry. Dark Matter (DM) and its potential interactions with the Standard Model (SM) continue to present a rich framework for model building. In the case of thermal DM of a mass between a few MeV and a few ...
[ { "created": "Thu, 10 Dec 2020 01:54:10 GMT", "version": "v1" }, { "created": "Mon, 21 Jun 2021 17:31:33 GMT", "version": "v2" }, { "created": "Mon, 8 Nov 2021 19:42:33 GMT", "version": "v3" }, { "created": "Fri, 7 Jan 2022 16:27:18 GMT", "version": "v4" } ]
2022-01-10
[ [ "Wojcik", "George N.", "" ], [ "Rizzo", "Thomas G.", "" ] ]
In this paper, we present a model which attempts to unify a new dark sector force with a local $SU(3)$ flavor symmetry. Dark Matter (DM) and its potential interactions with the Standard Model (SM) continue to present a rich framework for model building. In the case of thermal DM of a mass between a few MeV and a few Ge...
2108.00070
Bj\"orn Schenke
Bjoern Schenke
Theory progress at Strange Quark Matter 2021
6 pages
null
10.1051/epjconf/202225909005
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
I review recent theory progress reported at the 19th International Conference on Strangeness in Quark Matter (SQM), and discuss open questions to be addressed by the coming editions of SQM.
[ { "created": "Fri, 30 Jul 2021 20:36:43 GMT", "version": "v1" } ]
2022-02-16
[ [ "Schenke", "Bjoern", "" ] ]
I review recent theory progress reported at the 19th International Conference on Strangeness in Quark Matter (SQM), and discuss open questions to be addressed by the coming editions of SQM.
2101.09784
Ilia Belov
A.V. Berezhnoy, I.N. Belov and A.K. Likhoded
Production of $D$-wave states of $\bar b c$ quarkonium at the LHC
The paper is published in Phys. Rev. D. The last version is committed
Phys. Rev. D 103, 114001 (2021)
10.1103/PhysRevD.103.114001
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The hadronic production of $D$-wave states of $\bar b c$ is studied. The relative yield of such states is estimated for kinematic conditions of LHC experiments.
[ { "created": "Sun, 24 Jan 2021 19:54:08 GMT", "version": "v1" }, { "created": "Tue, 16 Feb 2021 16:45:51 GMT", "version": "v2" }, { "created": "Mon, 26 Apr 2021 13:28:32 GMT", "version": "v3" }, { "created": "Thu, 3 Jun 2021 19:15:57 GMT", "version": "v4" } ]
2021-06-09
[ [ "Berezhnoy", "A. V.", "" ], [ "Belov", "I. N.", "" ], [ "Likhoded", "A. K.", "" ] ]
The hadronic production of $D$-wave states of $\bar b c$ is studied. The relative yield of such states is estimated for kinematic conditions of LHC experiments.
hep-ph/9809243
Mary Alberg
Mary Alberg (1 and 2), Thomas Falter (1 and 3) and Ernest M. Henley (1 and 4) ((1) University of Washington, (2) Seattle University, (3) Universitaet Giessen, (4) Institute for Nuclear Theory)
The Quark Distributions in the \Sigma^+ Hyperon
13 pages, 11 figures
Nucl.Phys.A644:93-104,1998
10.1016/S0375-9474(98)89010-6
NT@UW-98-27
hep-ph
null
We use the meson cloud model and the Sullivan mechanism to estimate the sea flavor asymmetry in the \Sigma^+ baryon and calculate the distribution functions of both sea and valence quarks. We find large deviations from SU(3).
[ { "created": "Thu, 3 Sep 1998 00:58:38 GMT", "version": "v1" } ]
2008-11-26
[ [ "Alberg", "Mary", "", "1 and 2" ], [ "Falter", "Thomas", "", "1 and 3" ], [ "Henley", "Ernest M.", "", "1\n and 4" ] ]
We use the meson cloud model and the Sullivan mechanism to estimate the sea flavor asymmetry in the \Sigma^+ baryon and calculate the distribution functions of both sea and valence quarks. We find large deviations from SU(3).
2210.01215
Bibhushan Shakya
Bibhushan Shakya
Exponential Enhancement of Dark Matter Freezeout Abundance
Contribution to SciPost Proceedings of the Identification of Dark Matter (IDM) Conference 2022
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A novel paradigm for thermal dark matter (DM), termed "bouncing dark matter", is presented. In canonical thermal DM scenarios, the DM abundance falls exponentially as the temperature drops below the mass of DM, until thermal freezeout occurs. This note explores a broader class of thermal DM models that are exceptions...
[ { "created": "Mon, 3 Oct 2022 20:19:18 GMT", "version": "v1" } ]
2022-10-05
[ [ "Shakya", "Bibhushan", "" ] ]
A novel paradigm for thermal dark matter (DM), termed "bouncing dark matter", is presented. In canonical thermal DM scenarios, the DM abundance falls exponentially as the temperature drops below the mass of DM, until thermal freezeout occurs. This note explores a broader class of thermal DM models that are exceptions t...
hep-ph/0302126
Wayne W. Repko
Ali Abbasabadi and Wayne W. Repko
Optical activity of neutrinos and antineutrinos
Additional references
Phys.Rev. D67 (2003) 073018
10.1103/PhysRevD.67.073018
null
hep-ph
null
Using the one-loop helicity amplitudes for low-energy $\nu\gamma\to\nu\gamma$ and $\bar\nu\gamma\to\bar\nu\gamma$ scattering in the standard model with massless neutrinos, we study the optical activity of a sea of neutrinos and antineutrinos. In particular, we estimate the values of the index of refraction and rotary...
[ { "created": "Sat, 15 Feb 2003 19:10:49 GMT", "version": "v1" }, { "created": "Mon, 3 Mar 2003 21:58:44 GMT", "version": "v2" } ]
2009-11-10
[ [ "Abbasabadi", "Ali", "" ], [ "Repko", "Wayne W.", "" ] ]
Using the one-loop helicity amplitudes for low-energy $\nu\gamma\to\nu\gamma$ and $\bar\nu\gamma\to\bar\nu\gamma$ scattering in the standard model with massless neutrinos, we study the optical activity of a sea of neutrinos and antineutrinos. In particular, we estimate the values of the index of refraction and rotary p...
hep-ph/9305324
Hai-Yang Cheng
Hai-Yang Cheng
Direct CP Violation in $K_L\to\pi^+\pi^-\gamma$
Latex, 14 pages, ITP-SB-93-32, IP-ASTP-20-93
Phys.Lett.B315:170-178,1993
10.1016/0370-2693(93)90176-I
null
hep-ph
null
CP violation due to interference between $K_L$ and $K_S$ decays into $\pi ^+\pi^-\gamma$ is analyzed in the Standard Model. The CP-violating parameter $\epsilon'_{+- \gamma}$, which is the difference between $\eta_{+-\gamma}$ and $\eta_{+-}$, receives dominant contributions from $K^0-\bar{K}^0$ mixing and the gluon p...
[ { "created": "Wed, 26 May 1993 18:22:54 GMT", "version": "v1" } ]
2010-11-01
[ [ "Cheng", "Hai-Yang", "" ] ]
CP violation due to interference between $K_L$ and $K_S$ decays into $\pi ^+\pi^-\gamma$ is analyzed in the Standard Model. The CP-violating parameter $\epsilon'_{+- \gamma}$, which is the difference between $\eta_{+-\gamma}$ and $\eta_{+-}$, receives dominant contributions from $K^0-\bar{K}^0$ mixing and the gluon pen...
2405.03127
Van Que Tran
Abdesslam Arhrib, Khiem Hong Phan, Van Que Tran and Tzu-Chiang Yuan
When Standard Model Higgs Meets Its Lighter 95 GeV Higgs
32 pages, 5 figures
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Two excesses reported recently at the LHC in the lighter Higgs mass region around 95 GeV and in the rare $Z \gamma$ final state of the Standard Model (SM) 125 GeV Higgs decay are simultaneously scrutinized within the framework of minimal gauged two-Higgs-doublet model (G2HDM). Viable parameter space in G2HDM is obtai...
[ { "created": "Mon, 6 May 2024 02:46:12 GMT", "version": "v1" } ]
2024-05-07
[ [ "Arhrib", "Abdesslam", "" ], [ "Phan", "Khiem Hong", "" ], [ "Tran", "Van Que", "" ], [ "Yuan", "Tzu-Chiang", "" ] ]
Two excesses reported recently at the LHC in the lighter Higgs mass region around 95 GeV and in the rare $Z \gamma$ final state of the Standard Model (SM) 125 GeV Higgs decay are simultaneously scrutinized within the framework of minimal gauged two-Higgs-doublet model (G2HDM). Viable parameter space in G2HDM is obtaine...
hep-ph/0011387
Toshihiko Ota
M. Koike, T. Ota and J. Sato
Ambiguities of theoretical parameters and CP/T violation in neutrino factories
32pages, 15figures, Accepted for publication in Physical Review D Discussion about CP violation is based on chi_{3}^{2} in this version
Phys.Rev.D65:053015,2002
10.1103/PhysRevD.65.053015
KYUSHU-HET 48
hep-ph
null
We study the sensitivity to the CP/T-violation search in the presence of ambiguities of the theoretical parameters. Three generations of neutrinos are considered. The parameters whose ambiguities are considered are the differences of the squared masses, the mixing angles, and the density of matter. We first conside...
[ { "created": "Thu, 30 Nov 2000 11:07:16 GMT", "version": "v1" }, { "created": "Mon, 5 Feb 2001 08:55:05 GMT", "version": "v2" }, { "created": "Wed, 19 Dec 2001 10:00:09 GMT", "version": "v3" } ]
2011-02-21
[ [ "Koike", "M.", "" ], [ "Ota", "T.", "" ], [ "Sato", "J.", "" ] ]
We study the sensitivity to the CP/T-violation search in the presence of ambiguities of the theoretical parameters. Three generations of neutrinos are considered. The parameters whose ambiguities are considered are the differences of the squared masses, the mixing angles, and the density of matter. We first consider th...
hep-ph/9910380
Eduard Masso
E. Masso (Univ. Autonoma Barcelona)
Bounds on the Coupling of Light Pseudoscalars to Nucleons from Optical Laser Experiments
5 pages, 1 figure, to be published in Phys. Rev. D., corrected some typos
Phys.Rev.D61:011701,2000
10.1103/PhysRevD.61.011701
UAB-FT-472
hep-ph
null
We find the following improved laboratory bounds on the coupling of light pseudoscalars to protons and neutrons: $g_p^2/4\pi < 1.7 \times 10^{-9}$ and $g_n^2/4\pi < 6.8 \times 10^{-8}$. The limit on $g_p$ arises since a nonzero $g_p$ would induce a coupling of the pseudoscalar to two photons, which is limited by expe...
[ { "created": "Mon, 18 Oct 1999 11:26:03 GMT", "version": "v1" }, { "created": "Tue, 19 Oct 1999 14:37:05 GMT", "version": "v2" } ]
2008-11-26
[ [ "Masso", "E.", "", "Univ. Autonoma Barcelona" ] ]
We find the following improved laboratory bounds on the coupling of light pseudoscalars to protons and neutrons: $g_p^2/4\pi < 1.7 \times 10^{-9}$ and $g_n^2/4\pi < 6.8 \times 10^{-8}$. The limit on $g_p$ arises since a nonzero $g_p$ would induce a coupling of the pseudoscalar to two photons, which is limited by experi...
1301.4057
Arlene Cristina Aguilar
A. C. Aguilar, D. Binosi, J. C. Cardona, J. Papavassiliou
Nonperturbative results on the quark-gluon vertex
8 pages, 6 figures. Talk presented by A.C.A at Xth Quark Confinement and the Hadron Spectrum, 8-12 October 2012, TUM Campus Garching, Munich, Germany
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present analytical and numerical results for the Dirac form factor of the quark-gluon vertex in the quark symmetric limit, where the incoming and outgoing quark momenta have the same magnitude but opposite sign. To accomplish this, we compute the relevant components of the quark-ghost scattering kernel at the one-...
[ { "created": "Thu, 17 Jan 2013 11:44:31 GMT", "version": "v1" } ]
2013-01-18
[ [ "Aguilar", "A. C.", "" ], [ "Binosi", "D.", "" ], [ "Cardona", "J. C.", "" ], [ "Papavassiliou", "J.", "" ] ]
We present analytical and numerical results for the Dirac form factor of the quark-gluon vertex in the quark symmetric limit, where the incoming and outgoing quark momenta have the same magnitude but opposite sign. To accomplish this, we compute the relevant components of the quark-ghost scattering kernel at the one-lo...
1103.6178
George Leontaris
G.K. Leontaris, N.D. Vlachos
Knitting neutrino mass textures with or without Tri-Bi maximal mixing
17 pages, expanded version, to appear in PLB
Phys.Lett.B702:34-42,2011
10.1016/j.physletb.2011.06.057
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The solar and baseline neutrino oscillation data suggest bimaximal neutrino mixing among the first two generations, and trimaximal mixing between all three neutrino flavors. It has been conjectured that this indicates the existence of an underlying symmetry for the leptonic fermion mass textures. The experimentally m...
[ { "created": "Thu, 31 Mar 2011 13:34:44 GMT", "version": "v1" }, { "created": "Sat, 18 Jun 2011 07:14:26 GMT", "version": "v2" } ]
2011-07-26
[ [ "Leontaris", "G. K.", "" ], [ "Vlachos", "N. D.", "" ] ]
The solar and baseline neutrino oscillation data suggest bimaximal neutrino mixing among the first two generations, and trimaximal mixing between all three neutrino flavors. It has been conjectured that this indicates the existence of an underlying symmetry for the leptonic fermion mass textures. The experimentally mea...
hep-ph/9408382
Christoph Greub
C. Greub, A. Ioannissian and D. Wyler
Effects of new physics in the rare decays $B \to K \ell^+ \ell^-$ and $B \to K^\ast \ell^+ \ell^-$
10 pages and 9 Figures, ZU-TH 25/94, August 1994
Phys.Lett.B346:149-158,1995
10.1016/0370-2693(94)01624-L
null
hep-ph
null
We parametrize phenomenologically possible new physics effects and calculate their influence on the invariant dilepton mass spectrum and the Dalitz plot for the decays $B \to K \ell^+ \ell^-$ and $B \to K^\ast \ell^+ \ell^-$. Especially the decay into $K^*$ yields a wealth of new information on the form of the new in...
[ { "created": "Mon, 29 Aug 1994 09:53:43 GMT", "version": "v1" } ]
2011-01-05
[ [ "Greub", "C.", "" ], [ "Ioannissian", "A.", "" ], [ "Wyler", "D.", "" ] ]
We parametrize phenomenologically possible new physics effects and calculate their influence on the invariant dilepton mass spectrum and the Dalitz plot for the decays $B \to K \ell^+ \ell^-$ and $B \to K^\ast \ell^+ \ell^-$. Especially the decay into $K^*$ yields a wealth of new information on the form of the new inte...
2202.09103
Alexander Bernal
A. Bernal, J. A. Casas and J.M. Moreno
Fine-Tuning in the 2HDM
null
null
10.1140/epjc/s10052-022-10886-w
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Two-Higgs Doublet Model (2HDM) is one of the most popular and natural extensions of the Higgs sector; but it has two potential fine-tuning problems, related to the electroweak (EW) breaking and the requirement of alignment with the SM Higgs boson. We have quantified the fine-tunings obtaining analytical expressio...
[ { "created": "Fri, 18 Feb 2022 10:09:02 GMT", "version": "v1" } ]
2022-11-23
[ [ "Bernal", "A.", "" ], [ "Casas", "J. A.", "" ], [ "Moreno", "J. M.", "" ] ]
The Two-Higgs Doublet Model (2HDM) is one of the most popular and natural extensions of the Higgs sector; but it has two potential fine-tuning problems, related to the electroweak (EW) breaking and the requirement of alignment with the SM Higgs boson. We have quantified the fine-tunings obtaining analytical expressions...
2103.01944
Tobias Binder
Tobias Binder, Torsten Bringmann, Michael Gustafsson and Andrzej Hryczuk
DRAKE: Dark matter Relic Abundance beyond Kinetic Equilibrium
23 pages, 12 figures, v2: minor changes to match published version
Eur. Phys. J. C 81, 577 (2021)
10.1140/epjc/s10052-021-09357-5
null
hep-ph astro-ph.CO
http://creativecommons.org/licenses/by/4.0/
We introduce DRAKE, a numerical precision tool for predicting the dark matter relic abundance also in situations where the standard assumption of kinetic equilibrium during the freeze-out process may not be satisfied. DRAKE comes with a set of three dedicated Boltzmann equation solvers that implement, respectively, t...
[ { "created": "Tue, 2 Mar 2021 18:58:12 GMT", "version": "v1" }, { "created": "Wed, 4 Aug 2021 11:39:21 GMT", "version": "v2" } ]
2021-08-05
[ [ "Binder", "Tobias", "" ], [ "Bringmann", "Torsten", "" ], [ "Gustafsson", "Michael", "" ], [ "Hryczuk", "Andrzej", "" ] ]
We introduce DRAKE, a numerical precision tool for predicting the dark matter relic abundance also in situations where the standard assumption of kinetic equilibrium during the freeze-out process may not be satisfied. DRAKE comes with a set of three dedicated Boltzmann equation solvers that implement, respectively, the...
hep-ph/0109099
Vladimir Baryshevsky
Vladimir G. Baryshevsky
Spin rotation and oscillation of high energy particles in storage ring
Latex
Czech.J.Phys.52:C113-C118,2002
10.1007/s10582-002-0101-5
null
hep-ph
null
Phenomena of rotation and oscillations of particle spin are discussed for particles rotating in storage ring. The fact that these effects are described by spin-dependent part of zero-angle scattering amplitude allows to use them for the measurement of this amplitude at different energies of colliding particles. It is...
[ { "created": "Wed, 12 Sep 2001 09:47:55 GMT", "version": "v1" } ]
2009-11-07
[ [ "Baryshevsky", "Vladimir G.", "" ] ]
Phenomena of rotation and oscillations of particle spin are discussed for particles rotating in storage ring. The fact that these effects are described by spin-dependent part of zero-angle scattering amplitude allows to use them for the measurement of this amplitude at different energies of colliding particles. It is s...
1110.4989
Poslavsky Stanislav
A. V. Luchinsky, S. V. Poslavsky
Inclusive charmonium production at PANDA experiment
19 pages, 9 figures
Phys. Rev. D 85 (2012) 074016
10.1103/PhysRevD.85.074016
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The production of the charmonium states in proton-antiproton experiments is considered at the energy rates near threshold in NLO. Such a consideration allows one to obtain non zero distributions over the transverse momentum of the final charmonium and gives a natural explanation to the existence of $\chi_{c1}$-meson ...
[ { "created": "Sat, 22 Oct 2011 19:16:13 GMT", "version": "v1" }, { "created": "Sun, 25 Mar 2012 13:28:38 GMT", "version": "v2" } ]
2012-06-29
[ [ "Luchinsky", "A. V.", "" ], [ "Poslavsky", "S. V.", "" ] ]
The production of the charmonium states in proton-antiproton experiments is considered at the energy rates near threshold in NLO. Such a consideration allows one to obtain non zero distributions over the transverse momentum of the final charmonium and gives a natural explanation to the existence of $\chi_{c1}$-meson in...
1208.1507
Stefan Berge
Stefan Berge, Werner Bernreuther, Hubert Spiesberger
Determination of the CP parity of Higgs bosons in their tau decay channels at the ILC
Contribution to the 2011 International Workshop on Future Linear Colliders (LCWS11), Granada, Spain, 26-30 September, 2011
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate a method for determining the CP nature of a neutral Higgs boson or spin-zero resonance at a future linear e+e- collider (ILC) in its tau decay channel. Our procedure is applicable if the production vertex of the Higgs boson can be measured. This will be the case, for example, for the Higgs-strahlung pr...
[ { "created": "Tue, 7 Aug 2012 20:00:08 GMT", "version": "v1" } ]
2012-08-09
[ [ "Berge", "Stefan", "" ], [ "Bernreuther", "Werner", "" ], [ "Spiesberger", "Hubert", "" ] ]
We investigate a method for determining the CP nature of a neutral Higgs boson or spin-zero resonance at a future linear e+e- collider (ILC) in its tau decay channel. Our procedure is applicable if the production vertex of the Higgs boson can be measured. This will be the case, for example, for the Higgs-strahlung proc...
hep-ph/9904305
Robert D. Pisarski
C. P. Korthals Altes, Robert D. Pisarski, and Annamaria Sinkovics
The Potential for the Phase of the Wilson line at Nonzero Quark Density
7 pages, LaTeX
Phys.Rev. D61 (2000) 056007
10.1103/PhysRevD.61.056007
null
hep-ph
null
The contribution of quarks to the effective potential for the phase of the Wilson line is computed at nonzero temperature and quark chemical potential to one and two loop order. At zero temperature, regardless of the value of the quark chemical potential, the effective potential for the phase of the Wilson line vanis...
[ { "created": "Mon, 12 Apr 1999 16:27:45 GMT", "version": "v1" } ]
2009-10-31
[ [ "Altes", "C. P. Korthals", "" ], [ "Pisarski", "Robert D.", "" ], [ "Sinkovics", "Annamaria", "" ] ]
The contribution of quarks to the effective potential for the phase of the Wilson line is computed at nonzero temperature and quark chemical potential to one and two loop order. At zero temperature, regardless of the value of the quark chemical potential, the effective potential for the phase of the Wilson line vanishe...
1306.3988
Mattias Blennow
Mattias Blennow, Thomas Schwetz
Determination of the neutrino mass ordering by combining PINGU and Daya Bay II
23 pages, 7 figures (15 eps files), typos and minor mistakes corrected, final version to appear in JHEP
null
10.1007/JHEP09(2013)089
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The relatively large measured value of theta_13 has opened various possiblities to determine the neutrino mass ordering, among them using PINGU, the low-energy extention of the IceCube neutrino telescope, to observe matter effects in atmospheric neutrinos, or a high statistics measurment of the neutrino energy spectr...
[ { "created": "Mon, 17 Jun 2013 20:00:01 GMT", "version": "v1" }, { "created": "Tue, 17 Sep 2013 20:14:36 GMT", "version": "v2" } ]
2015-06-16
[ [ "Blennow", "Mattias", "" ], [ "Schwetz", "Thomas", "" ] ]
The relatively large measured value of theta_13 has opened various possiblities to determine the neutrino mass ordering, among them using PINGU, the low-energy extention of the IceCube neutrino telescope, to observe matter effects in atmospheric neutrinos, or a high statistics measurment of the neutrino energy spectrum...
1406.1722
Jure Zupan
Alexander L. Kagan, Gilad Perez, Frank Petriello, Yotam Soreq, Stoyan Stoynev, Jure Zupan
An Exclusive Window onto Higgs Yukawa Couplings
6 pages, 2 figures, 1 table
Phys. Rev. Lett. 114, 101802 (2015)
10.1103/PhysRevLett.114.101802
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show that both flavor-conserving and flavor-violating Yukawa couplings of the Higgs boson to first- and second-generation quarks can be probed by measuring rare decays of the form h->MV, where M denotes a vector meson and V indicates either gamma, W or Z. We calculate the branching ratios for these processes in bo...
[ { "created": "Fri, 6 Jun 2014 16:06:54 GMT", "version": "v1" } ]
2015-03-18
[ [ "Kagan", "Alexander L.", "" ], [ "Perez", "Gilad", "" ], [ "Petriello", "Frank", "" ], [ "Soreq", "Yotam", "" ], [ "Stoynev", "Stoyan", "" ], [ "Zupan", "Jure", "" ] ]
We show that both flavor-conserving and flavor-violating Yukawa couplings of the Higgs boson to first- and second-generation quarks can be probed by measuring rare decays of the form h->MV, where M denotes a vector meson and V indicates either gamma, W or Z. We calculate the branching ratios for these processes in both...
hep-ph/9409450
Department of Theoretical Physics
A.A.Gvozdev, N.V.Mikheev and L.A.Vassilevskaya
Rare Electroweak Processes $K^0_L \to \mu^+ \mu^-$ and $K^0_L \to \gamma \gamma$ and Heavy Top Quark
(talk given at the 5th Conference on the Intersections of Particle and Nuclear Physics, St. Petersburg, Florida, USA, May 31-June 6, 1994), 6 pages, LaTeX, Yaroslavl, Yaroslavl State University preprint YARU-HE-94/08
null
10.1063/1.48443
null
hep-ph
null
A brief overview of the recent measurements of the branching ratio of the rare $K_L^0 \to \mu^+ \mu^-$ decay in the context of their agreement with the Standard Model (SM) is given. It is shown that KEK result well correlates with the SM and B-physics, whereas the BNL results are in conflict with the SM with the heav...
[ { "created": "Fri, 30 Sep 1994 09:22:03 GMT", "version": "v1" } ]
2009-10-28
[ [ "Gvozdev", "A. A.", "" ], [ "Mikheev", "N. V.", "" ], [ "Vassilevskaya", "L. A.", "" ] ]
A brief overview of the recent measurements of the branching ratio of the rare $K_L^0 \to \mu^+ \mu^-$ decay in the context of their agreement with the Standard Model (SM) is given. It is shown that KEK result well correlates with the SM and B-physics, whereas the BNL results are in conflict with the SM with the heavy ...
0910.1160
Yonglu Liu
Yong-Lu Liu, Ming-Qiu Huang and Dao-Wei Wang
Improved analysis on the semi-leptonic decay $\Lambda_c\to\Lambda\ell^+\nu$ from QCD light-cone sum rules
12 pages, 4 figures
Phys.Rev.D80:074011,2009
10.1103/PhysRevD.80.074011
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
With the renewed distribution amplitudes of $\Lambda$, we present a reanalysis on the semi-leptonic decay $\Lambda_c\to\Lambda\ell^+\nu$ by use of the light-cone sum rule approach with two kinds of interpolating currents. The form factors describing the decay process are obtained and used to predict the decay width. ...
[ { "created": "Wed, 7 Oct 2009 05:54:08 GMT", "version": "v1" } ]
2009-11-21
[ [ "Liu", "Yong-Lu", "" ], [ "Huang", "Ming-Qiu", "" ], [ "Wang", "Dao-Wei", "" ] ]
With the renewed distribution amplitudes of $\Lambda$, we present a reanalysis on the semi-leptonic decay $\Lambda_c\to\Lambda\ell^+\nu$ by use of the light-cone sum rule approach with two kinds of interpolating currents. The form factors describing the decay process are obtained and used to predict the decay width. Wi...
hep-ph/0410282
Patrick Aurenche
Patrick Aurenche (LAPTH)
Photon emission in a hot QCD plasma
Talk given at Strong and Electroweak Matter 2004, Helsinki, Finland, June 2004
null
10.1142/9789812702159_0003
LAPTH-Conf-1064/04
hep-ph
null
Various mechanisms of thermal photon production are reviewed and their implications for heavy ion collisions are briefly sketched.
[ { "created": "Wed, 20 Oct 2004 17:54:42 GMT", "version": "v1" } ]
2017-08-23
[ [ "Aurenche", "Patrick", "", "LAPTH" ] ]
Various mechanisms of thermal photon production are reviewed and their implications for heavy ion collisions are briefly sketched.
1501.04093
Mikkel Johnson
Mikkel B. Johnson, Ernest M. Henley, and Leonard S. Kisslinger
Analytical Theory of Neutrino Oscillations in Matter with CP violation
27 pages, 8 figures, minor typos corrected
Phys. Rev. D 91, 076005 (2015)
10.1103/PhysRevD.91.076005
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We develop an exact analytical formulation of neutrino oscillations in matter within the framework of the Standard Neutrino Model assuming 3 Dirac Neutrinos. Our Hamiltonian formulation, which includes CP violation, leads to expressions for the partial oscillation probabilities that are linear combinations of spheric...
[ { "created": "Fri, 16 Jan 2015 20:43:49 GMT", "version": "v1" }, { "created": "Thu, 16 Apr 2015 20:33:32 GMT", "version": "v2" }, { "created": "Fri, 10 Jun 2016 21:00:08 GMT", "version": "v3" } ]
2016-06-14
[ [ "Johnson", "Mikkel B.", "" ], [ "Henley", "Ernest M.", "" ], [ "Kisslinger", "Leonard S.", "" ] ]
We develop an exact analytical formulation of neutrino oscillations in matter within the framework of the Standard Neutrino Model assuming 3 Dirac Neutrinos. Our Hamiltonian formulation, which includes CP violation, leads to expressions for the partial oscillation probabilities that are linear combinations of spherical...
hep-ph/0606032
George Sterman
George Sterman (Stony Brook)
Review of Theoretical Status: the Long and Short of High Energy Jets
16 pages, 7 figures, revtex4. Talk presented at the FRIF Workshop on First Principles Non-Perturbative QCD of Hadron Jets, Paris, 2006
ECONF C0601121:R001,2006
null
YITP-SB-06-16
hep-ph
null
High energy jets and their associated event shapes provide a window into the transition between elementary and composite degrees of freedom in quantum chromodynamics. This talk reviews some methods and a few principles that have led to progress in this area.
[ { "created": "Fri, 2 Jun 2006 14:20:49 GMT", "version": "v1" } ]
2014-11-18
[ [ "Sterman", "George", "", "Stony Brook" ] ]
High energy jets and their associated event shapes provide a window into the transition between elementary and composite degrees of freedom in quantum chromodynamics. This talk reviews some methods and a few principles that have led to progress in this area.
1005.1802
Tuomas Honkavaara
Dilip Kumar Ghosh, Tuomas Honkavaara, Katri Huitu, and Sourov Roy
Ultrarelativistic sneutrinos at the LHC and sneutrino-antisneutrino oscillation
5 pages, 2 eps figures, REVTeX 4; v2: One mistake corrected in the numerical computation and discussion clarified. Matches the version in PRD
Phys.Rev.D82:115006,2010
10.1103/PhysRevD.82.115006
HIP-2010-07/TH
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Sneutrino-antisneutrino oscillation can be a very useful probe to look for signatures of lepton number violation ($\Delta L = 2$) at the LHC. Here, we discuss the effect of the boost factor $\gamma$ and the travelling distance $L$ on the probability of the oscillation. We demonstrate that these two parameters can sig...
[ { "created": "Tue, 11 May 2010 11:36:29 GMT", "version": "v1" }, { "created": "Tue, 14 Dec 2010 10:31:09 GMT", "version": "v2" } ]
2010-12-23
[ [ "Ghosh", "Dilip Kumar", "" ], [ "Honkavaara", "Tuomas", "" ], [ "Huitu", "Katri", "" ], [ "Roy", "Sourov", "" ] ]
Sneutrino-antisneutrino oscillation can be a very useful probe to look for signatures of lepton number violation ($\Delta L = 2$) at the LHC. Here, we discuss the effect of the boost factor $\gamma$ and the travelling distance $L$ on the probability of the oscillation. We demonstrate that these two parameters can signi...
1403.4186
Fuminobu Takahashi
Tetsutaro Higaki, Kwang Sik Jeong, Fuminobu Takahashi
Solving the Tension between High-Scale Inflation and Axion Isocurvature Perturbations
21 pages, 2 figures. v3: references and a note added
Phys. Lett. B 734 (2014) 21-26
10.1016/j.physletb.2014.05.014
KEK-TH-1711, DESY-14-033, TU-958, IPMU14-0060
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The BICEP2 experiment determined the Hubble parameter during inflation to be about $10^{14}$ GeV. Such high inflation scale is in tension with the QCD axion dark matter if the Peccei-Quinn (PQ) symmetry remains broken during and after inflation, because too large axion isocurvature perturbations would be generated. T...
[ { "created": "Mon, 17 Mar 2014 17:48:23 GMT", "version": "v1" }, { "created": "Mon, 24 Mar 2014 16:02:51 GMT", "version": "v2" }, { "created": "Tue, 19 Aug 2014 14:32:22 GMT", "version": "v3" } ]
2014-08-20
[ [ "Higaki", "Tetsutaro", "" ], [ "Jeong", "Kwang Sik", "" ], [ "Takahashi", "Fuminobu", "" ] ]
The BICEP2 experiment determined the Hubble parameter during inflation to be about $10^{14}$ GeV. Such high inflation scale is in tension with the QCD axion dark matter if the Peccei-Quinn (PQ) symmetry remains broken during and after inflation, because too large axion isocurvature perturbations would be generated. The...
hep-ph/9904431
Yu. A. Simonov
Yu.A.Simonov (ITEP)
High-momentum asymptotics from the Fock-Feynman- Schwinger path integral
LaTeX, 15 pages, 3 figures
Phys.Lett. B464 (1999) 265-271
10.1016/S0370-2693(99)00996-X
null
hep-ph
null
The asymptotics of n-point Green's function at large external momenta is obtained in the exponentiated form using the Fock-Feynman-Schwinger representation for propagators in the external field. The method is applied to gauge theories such as QCD and QED, and the Sudakov form-factor is calculated as an example in QED...
[ { "created": "Thu, 22 Apr 1999 17:15:49 GMT", "version": "v1" } ]
2009-10-31
[ [ "Simonov", "Yu. A.", "", "ITEP" ] ]
The asymptotics of n-point Green's function at large external momenta is obtained in the exponentiated form using the Fock-Feynman-Schwinger representation for propagators in the external field. The method is applied to gauge theories such as QCD and QED, and the Sudakov form-factor is calculated as an example in QED a...
hep-ph/9902376
Owe Philipsen
O.Philipsen (CERN)
Static mass scales in hot gauge theories
5 pages LaTeX, talk given at the workshop SEWM98, December 1998, Copenhagen
null
null
null
hep-ph
null
The static sectors of the electroweak Standard Model and QCD at finite temperatures are described by 3d SU(N) Higgs models with scalars in the fundamental and adjoint representation, respectively. I summarize the non-perturbative physics of these theories like mass spectrum, string tension, screening of the static po...
[ { "created": "Wed, 17 Feb 1999 16:42:16 GMT", "version": "v1" } ]
2007-05-23
[ [ "Philipsen", "O.", "", "CERN" ] ]
The static sectors of the electroweak Standard Model and QCD at finite temperatures are described by 3d SU(N) Higgs models with scalars in the fundamental and adjoint representation, respectively. I summarize the non-perturbative physics of these theories like mass spectrum, string tension, screening of the static pote...
2301.06560
Edoardo Vitagliano
Pierluca Carenza, Giuseppe Lucente and Edoardo Vitagliano
Probing the Blue Axion with Cosmic Optical Background Anisotropies
21 pages, 13 figures. Matches published version, with a note added to show Figure 1 expanded to smaller axion masses (Fig. 14)
Phys.Rev.D 107 (2023) 8, 083032
10.1103/PhysRevD.107.083032
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A radiative decaying Big Bang relic with a mass $m_a\simeq 5-25 \,\rm eV$, which we dub "blue axion", can be probed with direct and indirect observations of the cosmic optical background (COB). The strongest bounds on blue-axion cold dark matter come from the Hubble Space Telescope (HST) measurements of COB anisotrop...
[ { "created": "Mon, 16 Jan 2023 19:00:00 GMT", "version": "v1" }, { "created": "Mon, 8 May 2023 16:37:48 GMT", "version": "v2" }, { "created": "Wed, 24 Jul 2024 14:46:23 GMT", "version": "v3" } ]
2024-07-25
[ [ "Carenza", "Pierluca", "" ], [ "Lucente", "Giuseppe", "" ], [ "Vitagliano", "Edoardo", "" ] ]
A radiative decaying Big Bang relic with a mass $m_a\simeq 5-25 \,\rm eV$, which we dub "blue axion", can be probed with direct and indirect observations of the cosmic optical background (COB). The strongest bounds on blue-axion cold dark matter come from the Hubble Space Telescope (HST) measurements of COB anisotropie...
0711.1485
Gui-Jun Ding
Gui-Jun Ding
Understanding the Charged Meson Z(4430)
10 pages, 1 figure
null
null
null
hep-ph
null
The difference between Z(4430) as a $D^{*}D_1$ molecule and a tetraquark state and how to distinguish between them are discussed. We construct an effective Lagrangian with $D^{*}D_1$ contact interactions constrained by the heavy quark symmetry and chiral symmetry to study Z(4430). We find that if Z(4430) is a $D^{*}D...
[ { "created": "Fri, 9 Nov 2007 15:22:22 GMT", "version": "v1" }, { "created": "Mon, 26 Nov 2007 17:36:45 GMT", "version": "v2" } ]
2007-11-26
[ [ "Ding", "Gui-Jun", "" ] ]
The difference between Z(4430) as a $D^{*}D_1$ molecule and a tetraquark state and how to distinguish between them are discussed. We construct an effective Lagrangian with $D^{*}D_1$ contact interactions constrained by the heavy quark symmetry and chiral symmetry to study Z(4430). We find that if Z(4430) is a $D^{*}D_1...
hep-ph/9910542
Stephan Kolb
St. Kolb, M. Hirsch, H.V. Klapdor-Kleingrothaus, O. Panella
Collider Signatures of Sneutrino Cold Dark Matter
10 pages, 1 figure
Phys.Lett. B478 (2000) 262-268
10.1016/S0370-2693(00)00260-4
null
hep-ph
null
Decays of sneutrinos are considered in the case that in the presence of lepton-number violation in the sneutrino sector the lighter tau-sneutrino is the Lightest Supersymmetric Particle and the Cold Dark Matter in the Universe. In such circumstances the signals from sparticle decays differ considerably from the ``sta...
[ { "created": "Fri, 29 Oct 1999 12:06:08 GMT", "version": "v1" }, { "created": "Thu, 6 Apr 2000 16:47:57 GMT", "version": "v2" } ]
2009-10-31
[ [ "Kolb", "St.", "" ], [ "Hirsch", "M.", "" ], [ "Klapdor-Kleingrothaus", "H. V.", "" ], [ "Panella", "O.", "" ] ]
Decays of sneutrinos are considered in the case that in the presence of lepton-number violation in the sneutrino sector the lighter tau-sneutrino is the Lightest Supersymmetric Particle and the Cold Dark Matter in the Universe. In such circumstances the signals from sparticle decays differ considerably from the ``stand...
hep-ph/0211069
Christian Bauer
Christian W. Bauer, Dan Pirjol, Iain W. Stewart
Factorization and Endpoint Singularities in Heavy-to-Light decays
5 pages, Added details on comparison with the literature
Phys.Rev. D67 (2003) 071502
10.1103/PhysRevD.67.071502
UCSD/PTH 02-27, INT-PUB-02-49
hep-ph
null
We prove a factorization theorem for heavy-to-light form factors. Our result differs in several important ways from previous proposals. A proper separation of scales gives hard kernels that are free of endpoint singularities. A general procedure is described for including soft effects usually associated with the tail...
[ { "created": "Wed, 6 Nov 2002 20:50:40 GMT", "version": "v1" }, { "created": "Fri, 17 Jan 2003 20:07:49 GMT", "version": "v2" } ]
2009-11-07
[ [ "Bauer", "Christian W.", "" ], [ "Pirjol", "Dan", "" ], [ "Stewart", "Iain W.", "" ] ]
We prove a factorization theorem for heavy-to-light form factors. Our result differs in several important ways from previous proposals. A proper separation of scales gives hard kernels that are free of endpoint singularities. A general procedure is described for including soft effects usually associated with the tail o...
hep-ph/9608305
Andrei Afanas'ev
Andrei Afanasev (Jefferson Lab and Hampton U.)
Virtual Compton Scattering on the Proton at High s and Low t
LaTeX, 7 pages, 3 figures, requires sprocl.sty, psfig.sty
null
null
JLAB-THY-96-01
hep-ph
null
Virtual Compton Scattering (VCS) at low transferred momenta to the proton ($t$) and sufficiently high c.m. energies ($s$) may be used to a) study $Q^2$--dependence of leading $t$--channel exchanges and b) look for onset of scaling behavior with increasing $Q^2$. I discuss the implications for perturbative and nonpert...
[ { "created": "Mon, 12 Aug 1996 19:14:46 GMT", "version": "v1" } ]
2007-05-23
[ [ "Afanasev", "Andrei", "", "Jefferson Lab and Hampton U." ] ]
Virtual Compton Scattering (VCS) at low transferred momenta to the proton ($t$) and sufficiently high c.m. energies ($s$) may be used to a) study $Q^2$--dependence of leading $t$--channel exchanges and b) look for onset of scaling behavior with increasing $Q^2$. I discuss the implications for perturbative and nonpertur...
0705.3887
Massimiliano Grazzini
G. Bozzi, S. Catani, D. de Florian, M. Grazzini
Higgs boson production at the LHC: transverse-momentum resummation and rapidity dependence
References added
Nucl.Phys.B791:1-19,2008
10.1016/j.nuclphysb.2007.09.034
null
hep-ph
null
We consider Higgs boson production by gluon fusion in hadron collisions. We study the doubly-differential transverse-momentum (q_T) and rapidity (y) distribution of the Higgs boson in perturbative QCD. In the region of small q_T (q_T << M_H, M_H being the mass of the Higgs boson), we include the effect of logarithmic...
[ { "created": "Sat, 26 May 2007 09:49:07 GMT", "version": "v1" }, { "created": "Mon, 11 Feb 2008 11:56:13 GMT", "version": "v2" } ]
2008-11-26
[ [ "Bozzi", "G.", "" ], [ "Catani", "S.", "" ], [ "de Florian", "D.", "" ], [ "Grazzini", "M.", "" ] ]
We consider Higgs boson production by gluon fusion in hadron collisions. We study the doubly-differential transverse-momentum (q_T) and rapidity (y) distribution of the Higgs boson in perturbative QCD. In the region of small q_T (q_T << M_H, M_H being the mass of the Higgs boson), we include the effect of logarithmical...
hep-ph/0109184
Michael Plumacher
M. Kachelriess and M. Plumacher
Remarks on the high-energy behaviour of cross-sections in weak-scale string theories
5 pages, no figures
null
null
CERN-TH 2001-251, OUTP-01-48-P
hep-ph
null
We consider the high-energy behaviour of processes involving Kaluza-Klein (KK) gravitons of weak-scale string theories. We discuss how form-factors derived within string theory modify the couplings of KK gravitons and thereby lead to an exponential fall-off of cross sections in the high-energy limit. Further, we poin...
[ { "created": "Thu, 20 Sep 2001 13:55:42 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kachelriess", "M.", "" ], [ "Plumacher", "M.", "" ] ]
We consider the high-energy behaviour of processes involving Kaluza-Klein (KK) gravitons of weak-scale string theories. We discuss how form-factors derived within string theory modify the couplings of KK gravitons and thereby lead to an exponential fall-off of cross sections in the high-energy limit. Further, we point ...
1112.5823
Tomohiro Takesako
Masahiro Kawasaki, Tomohiro Takesako
Hubble Induced Mass in Radiation Dominated Universe
10 pages, v2:minor corrections and a reference added, v3:a footnote added, version accepted by PLB
null
10.1016/j.physletb.2012.03.069
ICRR-Report-602-2011-19; IPMU 11-0213
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We reconsider the effective mass of a scalar field which interact with visible sector via Planck-suppressed coupling in supergravity framework. We focus on the radiation-dominated (RD) era after inflation. In this era, the effective mass is given by thermal average of interaction terms. To make our analysis clear, we...
[ { "created": "Mon, 26 Dec 2011 07:54:00 GMT", "version": "v1" }, { "created": "Fri, 20 Jan 2012 02:45:24 GMT", "version": "v2" }, { "created": "Fri, 6 Apr 2012 08:28:45 GMT", "version": "v3" } ]
2015-06-03
[ [ "Kawasaki", "Masahiro", "" ], [ "Takesako", "Tomohiro", "" ] ]
We reconsider the effective mass of a scalar field which interact with visible sector via Planck-suppressed coupling in supergravity framework. We focus on the radiation-dominated (RD) era after inflation. In this era, the effective mass is given by thermal average of interaction terms. To make our analysis clear, we r...
hep-ph/0501227
Ting-Wai Chiu
Ting-Wai Chiu, Tung-Han Hsieh
Signal of Theta^+ in quenched lattice QCD with exact chiral symmetry
8 pages, 3 figures, to appear in the Proceedings of PENTAQUARK 2004, SPring8, Japan, July 20-23, 2004
null
10.1142/9789812701855_0047
null
hep-ph hep-lat nucl-th
null
We investigate the mass spectrum of the pentaquark baryon ($ udud \bar s $) in quenched lattice QCD with exact chiral symmetry. Using 3 different interpolating operators, we measure their $ 3 \times 3 $ correlation matrix and obtain the eigenvalues $ A^{\pm} (t) $ with $ \pm $ parity, for 100 gauge configurations gen...
[ { "created": "Tue, 25 Jan 2005 05:19:22 GMT", "version": "v1" } ]
2017-08-23
[ [ "Chiu", "Ting-Wai", "" ], [ "Hsieh", "Tung-Han", "" ] ]
We investigate the mass spectrum of the pentaquark baryon ($ udud \bar s $) in quenched lattice QCD with exact chiral symmetry. Using 3 different interpolating operators, we measure their $ 3 \times 3 $ correlation matrix and obtain the eigenvalues $ A^{\pm} (t) $ with $ \pm $ parity, for 100 gauge configurations gener...
hep-ph/0305250
Christian Weber
C. Weber, H. Eberl and W. Majerotto
Improved full one--loop corrections to A^0 -> \sq_1 \sq_2 and \sq_2 -> \sq_1 A^0
15 pages, 9 figures, Fig. 8 corrected
Phys.Lett.B572:56-67,2003
10.1016/j.physletb.2003.07.083
HEPHY-PUB 771/03
hep-ph
null
We calculate the full electroweak one-loop corrections to the decay of the CP-odd Higgs boson A^0 into scalar quarks in the minimal supersymmetric extension of the Standard Model (MSSM). Due to the complex structure of the electroweak sector a proper renormalization of many parameters in the on-shell renormalization ...
[ { "created": "Thu, 22 May 2003 13:02:32 GMT", "version": "v1" }, { "created": "Mon, 2 Jun 2003 14:54:14 GMT", "version": "v2" }, { "created": "Mon, 4 Aug 2003 15:57:59 GMT", "version": "v3" } ]
2014-11-17
[ [ "Weber", "C.", "" ], [ "Eberl", "H.", "" ], [ "Majerotto", "W.", "" ] ]
We calculate the full electroweak one-loop corrections to the decay of the CP-odd Higgs boson A^0 into scalar quarks in the minimal supersymmetric extension of the Standard Model (MSSM). Due to the complex structure of the electroweak sector a proper renormalization of many parameters in the on-shell renormalization sc...
1910.00117
Julia Harz
G. B\'elanger, N. Desai, A. Goudelis, J. Harz, A. Lessa, J. M. No, A. Pukhov, S. Sekmen, D. Sengupta, B. Zaldivar, J. Zurita
Confronting minimal freeze-in models with the LHC
6 pages, 3 figures. Contribution to the proceedings of Rencontres de Moriond EW 2019, 16-23 March 2019, La Thuile, Italy
null
null
TUM-HEP-1204-19
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a class of dark matter models, in which the dark matter particle is a feebly interacting massive particle (FIMP) produced via the decay of an electrically charged and/or colored parent particle. Given the feeble interaction, dark matter is produced via the freeze-in mechanism and the parent particle is lon...
[ { "created": "Mon, 30 Sep 2019 21:35:11 GMT", "version": "v1" } ]
2019-10-02
[ [ "Bélanger", "G.", "" ], [ "Desai", "N.", "" ], [ "Goudelis", "A.", "" ], [ "Harz", "J.", "" ], [ "Lessa", "A.", "" ], [ "No", "J. M.", "" ], [ "Pukhov", "A.", "" ], [ "Sekmen", "S.", "" ],...
We present a class of dark matter models, in which the dark matter particle is a feebly interacting massive particle (FIMP) produced via the decay of an electrically charged and/or colored parent particle. Given the feeble interaction, dark matter is produced via the freeze-in mechanism and the parent particle is long-...
1611.09605
Armen Oganesian Gourgenovitcv
Marina Kozhevnikova, Armen Oganesian and Oleg Teryaev
Search for short strings in~$e^+e^-$-annihilation
9 pages, 2 figures, a report on the XXIII Baldin ISHEPP, minor corrections, references added
null
10.1051/epjconf/201713802006
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work the behavior of power corrections to Adler finction in operator product expansion (OPE) is studied, in particular the possible contribution of operator of dimension 2. The OPE terms of dimension 4 and 6 are taken into account. Various experimental data on reactions of $e^+e^-$-annihilation to pion channe...
[ { "created": "Tue, 29 Nov 2016 12:46:07 GMT", "version": "v1" }, { "created": "Thu, 8 Dec 2016 11:22:25 GMT", "version": "v2" }, { "created": "Thu, 29 Dec 2016 14:21:34 GMT", "version": "v3" } ]
2017-04-26
[ [ "Kozhevnikova", "Marina", "" ], [ "Oganesian", "Armen", "" ], [ "Teryaev", "Oleg", "" ] ]
In this work the behavior of power corrections to Adler finction in operator product expansion (OPE) is studied, in particular the possible contribution of operator of dimension 2. The OPE terms of dimension 4 and 6 are taken into account. Various experimental data on reactions of $e^+e^-$-annihilation to pion channels...
1305.6468
Werner Vogelsang
Daniel de Florian, Melanie Pfeuffer, Andreas Schafer, Werner Vogelsang
Soft-gluon Resummation for High-pT Inclusive-Hadron Production at COMPASS
13 pages, 7 figures, journal version
Phys.Rev. D88 (2013), 014024
10.1103/PhysRevD.88.014024
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the cross section for the photoproduction reaction gamma N -> h X in fixed-target scattering at COMPASS, where the hadron h is produced at large transverse momentum. We investigate the role played by higher-order QCD corrections to the cross section. In particular we address large logarithmic "threshold" cor...
[ { "created": "Tue, 28 May 2013 12:23:44 GMT", "version": "v1" }, { "created": "Sun, 27 Jul 2014 15:19:26 GMT", "version": "v2" } ]
2015-06-16
[ [ "de Florian", "Daniel", "" ], [ "Pfeuffer", "Melanie", "" ], [ "Schafer", "Andreas", "" ], [ "Vogelsang", "Werner", "" ] ]
We study the cross section for the photoproduction reaction gamma N -> h X in fixed-target scattering at COMPASS, where the hadron h is produced at large transverse momentum. We investigate the role played by higher-order QCD corrections to the cross section. In particular we address large logarithmic "threshold" corre...
1401.7580
Zhi-Gang Wang
Zhi-Gang Wang
Strong decays of the bottom mesons $B_1(5721)$, $B_2(5747)$, $B_{s1}(5830)$, $B_{s2}(5840)$ and $B(5970)$
13 pages
Eur.Phys.J.Plus 129 (2014) 186
10.1140/epjp/i2014-14186-y
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this article, we study the two-body strong decays of the bottom mesons with the heavy meson effective theory in the leading order approximation, and obtain all the analytical expressions of the decay widths of the light pseudoscalar mesons transitions among the S-wave, P-wave and D-wave bottom mesons. As an applic...
[ { "created": "Fri, 24 Jan 2014 01:31:33 GMT", "version": "v1" }, { "created": "Tue, 20 May 2014 07:48:45 GMT", "version": "v2" } ]
2014-09-09
[ [ "Wang", "Zhi-Gang", "" ] ]
In this article, we study the two-body strong decays of the bottom mesons with the heavy meson effective theory in the leading order approximation, and obtain all the analytical expressions of the decay widths of the light pseudoscalar mesons transitions among the S-wave, P-wave and D-wave bottom mesons. As an applicat...
1203.6803
Emily Nurse
J. Alcaraz Maestre, S. Alioli, J. R. Andersen, R. D. Ball, A. Buckley, M. Cacciari, F. Campanario, N. Chanon, G. Chachamis, V. Ciulli, F. Cossutti, G. Cullen, A. Denner, S. Dittmaier, J. Fleischer, R. Frederix, S. Frixione, J. Gao, L. Garren, S. Gascon-Shotkin, N. Greiner, J. P. Guillet, T. Hapola, N. P. Hartla...
The SM and NLO Multileg and SM MC Working Groups: Summary Report
220 pages
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The 2011 Les Houches workshop was the first to confront LHC data. In the two years since the previous workshop there have been significant advances in both soft and hard QCD, particularly in the areas of multi-leg NLO calculations, the inclusion of those NLO calculations into parton shower Monte Carlos, and the tunin...
[ { "created": "Thu, 29 Mar 2012 10:21:16 GMT", "version": "v1" }, { "created": "Wed, 9 May 2012 11:37:20 GMT", "version": "v2" } ]
2012-05-10
[ [ "Maestre", "J. Alcaraz", "" ], [ "Alioli", "S.", "" ], [ "Andersen", "J. R.", "" ], [ "Ball", "R. D.", "" ], [ "Buckley", "A.", "" ], [ "Cacciari", "M.", "" ], [ "Campanario", "F.", "" ], [ "Chanon"...
The 2011 Les Houches workshop was the first to confront LHC data. In the two years since the previous workshop there have been significant advances in both soft and hard QCD, particularly in the areas of multi-leg NLO calculations, the inclusion of those NLO calculations into parton shower Monte Carlos, and the tuning ...
2012.05276
Rupert Coy
Rupert Coy and Thomas Hambye
Neutrino lines from DM decay induced by high-scale seesaw interactions
8 pages, 6 figures
null
10.1007/JHEP05(2021)101
ULB-TH/20-19
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
If the stability of the dark matter (DM) particle is due to an accidental symmetry, nothing prevents UV physics from destabilising it by inducing DM decays suppressed by powers of the UV scale. The seesaw physics, presumably at the origin of neutrino mass, could induce such a decay. We show that if the seesaw scale l...
[ { "created": "Wed, 9 Dec 2020 19:28:23 GMT", "version": "v1" } ]
2021-06-02
[ [ "Coy", "Rupert", "" ], [ "Hambye", "Thomas", "" ] ]
If the stability of the dark matter (DM) particle is due to an accidental symmetry, nothing prevents UV physics from destabilising it by inducing DM decays suppressed by powers of the UV scale. The seesaw physics, presumably at the origin of neutrino mass, could induce such a decay. We show that if the seesaw scale lie...
1205.1683
Mosleh Almarashi
Mosleh Almarashi and Stefano Moretti
Scope of Higgs production in association with a bottom quark pair in probing the Higgs sector of the NMSSM at the LHC
31 pages, 14 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We review the potential of the LHC to detect a very light CP-odd Higgs boson of the NMSSM, $a_1$, through its direct production in association with a bottom-quark pair at large tan$\beta$. We also review the LHC discovery potential of the two lightest CP-even Higgs states, decaying into two lighter Higgs states or in...
[ { "created": "Tue, 8 May 2012 12:59:01 GMT", "version": "v1" } ]
2012-05-09
[ [ "Almarashi", "Mosleh", "" ], [ "Moretti", "Stefano", "" ] ]
We review the potential of the LHC to detect a very light CP-odd Higgs boson of the NMSSM, $a_1$, through its direct production in association with a bottom-quark pair at large tan$\beta$. We also review the LHC discovery potential of the two lightest CP-even Higgs states, decaying into two lighter Higgs states or into...
0908.4470
Minoru Eto
Minoru Eto, Eiji Nakano, Muneto Nitta
Color Magnetic Flux Tubes in Dense QCD. II: Effective World-Sheet Theory
18 pages, 3 figures
Phys.Rev.D80:125011,2009
10.1103/PhysRevD.80.125011
null
hep-ph astro-ph.HE cond-mat.supr-con hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Color magnetic flux tubes appear in the color-flavor locked phase of high density QCD, which exhibits color superconductivity as well as superfluidity. They are non-Abelian superfluid vortices and are accompanied by orientational zero modes in the internal space associated with the color-flavor locked symmetry sponta...
[ { "created": "Mon, 31 Aug 2009 07:48:50 GMT", "version": "v1" } ]
2010-01-24
[ [ "Eto", "Minoru", "" ], [ "Nakano", "Eiji", "" ], [ "Nitta", "Muneto", "" ] ]
Color magnetic flux tubes appear in the color-flavor locked phase of high density QCD, which exhibits color superconductivity as well as superfluidity. They are non-Abelian superfluid vortices and are accompanied by orientational zero modes in the internal space associated with the color-flavor locked symmetry spontane...
hep-ph/0008187
Mihail Chizhov
M. V. Chizhov
On the two kinds of vector particles
4 pages, no figures
null
null
CERN-TH/2000-248
hep-ph
null
All known elementary vector particles, the photon, Z, W and the gluons, are described by the gauge theory. They belong to the real representation (1/2,1/2) of the Lorentz group. On the other hand inequivalent representations (1,0) and (0,1) also correspond to particles with spin 1. It is natural to suppose that, alon...
[ { "created": "Thu, 17 Aug 2000 16:52:23 GMT", "version": "v1" } ]
2007-05-23
[ [ "Chizhov", "M. V.", "" ] ]
All known elementary vector particles, the photon, Z, W and the gluons, are described by the gauge theory. They belong to the real representation (1/2,1/2) of the Lorentz group. On the other hand inequivalent representations (1,0) and (0,1) also correspond to particles with spin 1. It is natural to suppose that, along ...
1207.1229
Y.H Ahn
Y. H. Ahn, Seungwon Baek and Paolo Gondolo
Simple renormalizable flavor symmetry for neutrino oscillations
29 pages and 10 figures. No corrections. Version for Phys. Rev. D
null
10.1103/PhysRevD.86.053004
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The recent measurement of a non-zero neutrino mixing angle $\theta_{13}$ requires a modification of the tri-bimaximal mixing pattern that predicts a zero value for it. We propose a new neutrino mixing pattern based on a spontaneously-broken $A_{4}$ flavor symmetry and a type-I seesaw mechanism. Our model allows for a...
[ { "created": "Thu, 5 Jul 2012 11:36:19 GMT", "version": "v1" }, { "created": "Fri, 27 Jul 2012 07:11:39 GMT", "version": "v2" }, { "created": "Fri, 7 Sep 2012 07:37:08 GMT", "version": "v3" } ]
2013-05-30
[ [ "Ahn", "Y. H.", "" ], [ "Baek", "Seungwon", "" ], [ "Gondolo", "Paolo", "" ] ]
The recent measurement of a non-zero neutrino mixing angle $\theta_{13}$ requires a modification of the tri-bimaximal mixing pattern that predicts a zero value for it. We propose a new neutrino mixing pattern based on a spontaneously-broken $A_{4}$ flavor symmetry and a type-I seesaw mechanism. Our model allows for app...
hep-ph/9803340
Name
Kalman Varga, Marco Genovese, Jean-Marc Richard, Bernard Silvestre-Brac
Isospin Mass Splittings of Baryons in Potential Models
18 pages
Phys.Rev. D59 (1999) 014012
10.1103/PhysRevD.59.014012
null
hep-ph nucl-th
null
We discuss the isospin-breaking mass differences among baryons, with particular attention in the charm sector to the $\Sigma_c^{+}-\Sigma_c^0$, $\Sigma_c^{++}-\Sigma_c^0$, and $\Xi_c^+-\Xi_c^0$ splittings. Simple potential models cannot accommodate the trend of the available data on charmed baryons. More precise meas...
[ { "created": "Fri, 13 Mar 1998 14:05:26 GMT", "version": "v1" } ]
2016-09-06
[ [ "Varga", "Kalman", "" ], [ "Genovese", "Marco", "" ], [ "Richard", "Jean-Marc", "" ], [ "Silvestre-Brac", "Bernard", "" ] ]
We discuss the isospin-breaking mass differences among baryons, with particular attention in the charm sector to the $\Sigma_c^{+}-\Sigma_c^0$, $\Sigma_c^{++}-\Sigma_c^0$, and $\Xi_c^+-\Xi_c^0$ splittings. Simple potential models cannot accommodate the trend of the available data on charmed baryons. More precise measur...
hep-ph/0503147
Cosmin Macesanu
Cosmin Macesanu, Kameshwar C. Wali
The Higgs Sector on a Two-Sheeted Space Time
24 pages, uses revtex4
Int.J.Mod.Phys. A21 (2006) 4519-4542
10.1142/S0217751X05029344
null
hep-ph
null
We present a general formalism based on the framework of non-commutative geometry, suitable to the study the standard model of electroweak interactions, as well as that of more general gauge theories. Left- and right-handed chiral fields are assigned to two different sheets of space-time (a discretized version of Kal...
[ { "created": "Tue, 15 Mar 2005 18:55:38 GMT", "version": "v1" } ]
2009-11-11
[ [ "Macesanu", "Cosmin", "" ], [ "Wali", "Kameshwar C.", "" ] ]
We present a general formalism based on the framework of non-commutative geometry, suitable to the study the standard model of electroweak interactions, as well as that of more general gauge theories. Left- and right-handed chiral fields are assigned to two different sheets of space-time (a discretized version of Kaluz...
1106.4546
Keith R. Dienes
Keith R. Dienes, Brooks Thomas
Dynamical Dark Matter: I. Theoretical Overview
31 pages, LaTeX, 8 figures, 1 table. Replaced to match published version
Phys. Rev. D85 (2012) 083523
10.1103/PhysRevD.85.083523
null
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, we propose a new framework for dark-matter physics. Rather than focus on one or more stable dark-matter particles, we instead consider a multi-component framework in which the dark matter of the universe comprises a vast ensemble of interacting fields with a variety of different masses, mixings, and ab...
[ { "created": "Wed, 22 Jun 2011 20:00:02 GMT", "version": "v1" }, { "created": "Mon, 4 Jun 2012 18:01:58 GMT", "version": "v2" } ]
2013-05-30
[ [ "Dienes", "Keith R.", "" ], [ "Thomas", "Brooks", "" ] ]
In this paper, we propose a new framework for dark-matter physics. Rather than focus on one or more stable dark-matter particles, we instead consider a multi-component framework in which the dark matter of the universe comprises a vast ensemble of interacting fields with a variety of different masses, mixings, and abun...
2207.03930
Dian-Yong Chen
Man-Yu Duan, Dian-Yong Chen, and En Wang
The possibility of $X(4014)$ as a $D^\ast \bar{D}^\ast$ molecular state
6 pages, 5 figures
null
10.1140/epjc/s10052-022-10948-z
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Within the framework of the local hidden gauge approach, we have studied the near-threshold interaction of the $D^* \bar{D}^*$ channel with quantum numbers $I(J^{PC}) = 0(0^{++})$, $0(2^{++})$, $1(0^{++})$, and $1(2^{++})$, respectively. The contact interaction is taken into account alone, since it is expected to giv...
[ { "created": "Fri, 8 Jul 2022 14:29:55 GMT", "version": "v1" } ]
2022-11-23
[ [ "Duan", "Man-Yu", "" ], [ "Chen", "Dian-Yong", "" ], [ "Wang", "En", "" ] ]
Within the framework of the local hidden gauge approach, we have studied the near-threshold interaction of the $D^* \bar{D}^*$ channel with quantum numbers $I(J^{PC}) = 0(0^{++})$, $0(2^{++})$, $1(0^{++})$, and $1(2^{++})$, respectively. The contact interaction is taken into account alone, since it is expected to give ...
0904.3008
Maxim V. Polyakov
N.A. Kivel, M.V. Polyakov, A.A. Vladimirov
Leading Chiral Logarithms for Pion Form Factors to Arbitrary Number of Loops
5 pages
JETP Lett.89:529-534,2009
10.1134/S0021364009110022
null
hep-ph hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We develop the method of calculation of the leading chiral (infrared) logarithms to an arbitrary loop order for various form factors of Nambu-Goldstone bosons. The method is illustrated on example of scalar and vector form factors in massless 4D O(N+1)/O(N) sigma-model. The analytical properties of the form factors a...
[ { "created": "Mon, 20 Apr 2009 13:57:43 GMT", "version": "v1" } ]
2009-08-24
[ [ "Kivel", "N. A.", "" ], [ "Polyakov", "M. V.", "" ], [ "Vladimirov", "A. A.", "" ] ]
We develop the method of calculation of the leading chiral (infrared) logarithms to an arbitrary loop order for various form factors of Nambu-Goldstone bosons. The method is illustrated on example of scalar and vector form factors in massless 4D O(N+1)/O(N) sigma-model. The analytical properties of the form factors are...
1009.1222
Anna-Zuzana Dubnickova
S. Dubnicka, A.Z. Dubnickova and A. Liptaj
Two-Photon Decay Rates of True Neutral Pseudoscalar Mesons from Data on their Transition Form Factors
7 pages, 6 eps figures. Lecture given at Hadron Structure and QCD: from LOW to HIGH energies, Gatchina, Russia, July 5 - July 9, 2010
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
By means of the universal unitary and analytic model of electromagnetic structure of hadrons the two-photon decay rates of P=pi^0, eta, eta' mesons are determined in an alternative way from data on their transition form factors.
[ { "created": "Tue, 7 Sep 2010 08:16:26 GMT", "version": "v1" } ]
2010-09-08
[ [ "Dubnicka", "S.", "" ], [ "Dubnickova", "A. Z.", "" ], [ "Liptaj", "A.", "" ] ]
By means of the universal unitary and analytic model of electromagnetic structure of hadrons the two-photon decay rates of P=pi^0, eta, eta' mesons are determined in an alternative way from data on their transition form factors.
0907.5189
Kirill Tuchin
Kirill Tuchin
Multi-photon interactions in lepton photo-production on nuclei at high energies
18 pages, 4 figures; v3: final journal version
null
10.1103/PhysRevD.80.093006
RBRC-786
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study multi-photon effects in quantum electrodynamics in lepton photo-production on heavy nuclei and nuclear medium at high energies. We are interested in energy, charge density and nuclear geometry dependence of the cross sections. We use the impact parameter representation that allows us to reduce the problem of...
[ { "created": "Wed, 29 Jul 2009 18:36:36 GMT", "version": "v1" }, { "created": "Thu, 6 Aug 2009 16:02:50 GMT", "version": "v2" }, { "created": "Tue, 24 Nov 2009 18:13:55 GMT", "version": "v3" } ]
2013-05-29
[ [ "Tuchin", "Kirill", "" ] ]
We study multi-photon effects in quantum electrodynamics in lepton photo-production on heavy nuclei and nuclear medium at high energies. We are interested in energy, charge density and nuclear geometry dependence of the cross sections. We use the impact parameter representation that allows us to reduce the problem of p...
1012.5266
David Fogaca
D.A. Foga\c{c}a and F.S. Navarra
Gluon condensates in a cold quark gluon plasma
16 pages, 5 figures
Physics Letters B 700, 236 (2011)
10.1016/j.physletb.2011.05.011
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The quark gluon plasma which has been observed at RHIC is a strongly interacting system and has been called sQGP. This is a system at high temperatures and almost zero baryon chemical potential. A similar system with high chemical potential and almost zero temperature may exist in the core of compact stars. Most like...
[ { "created": "Thu, 23 Dec 2010 17:59:22 GMT", "version": "v1" } ]
2013-04-25
[ [ "Fogaça", "D. A.", "" ], [ "Navarra", "F. S.", "" ] ]
The quark gluon plasma which has been observed at RHIC is a strongly interacting system and has been called sQGP. This is a system at high temperatures and almost zero baryon chemical potential. A similar system with high chemical potential and almost zero temperature may exist in the core of compact stars. Most likely...
hep-ph/9605247
Anirban Kundu
Abhee K. Dutt-Mazumder, Binayak Dutta-Roy and Anirban Kundu
Matter induced rho-omega mixing
Contains two postscript figures in the uuencoded file
Phys.Lett.B399:196-200,1997
10.1016/S0370-2693(97)00270-0
SINP-TNP/96-07, TIFR/TH/96-22
hep-ph nucl-th
null
A novel mechanism for $\rho-\omega$ mixing induced by neutron-proton asymmetry in nuclear matter is uncovered and the variation of the mixing angle with the extent of asymmetry is presented.
[ { "created": "Wed, 8 May 1996 11:37:13 GMT", "version": "v1" } ]
2014-11-17
[ [ "Dutt-Mazumder", "Abhee K.", "" ], [ "Dutta-Roy", "Binayak", "" ], [ "Kundu", "Anirban", "" ] ]
A novel mechanism for $\rho-\omega$ mixing induced by neutron-proton asymmetry in nuclear matter is uncovered and the variation of the mixing angle with the extent of asymmetry is presented.
1806.01684
Cristina Manuel
Stefano Carignano, Cristina Manuel and Juan M. Torres-Rincon
Consistent Relativistic Chiral Kinetic Theory: a derivation from OSEFT
30 pages; It matches the published version, one appendix and explanations added
Phys. Rev. D 98, 076005 (2018)
10.1103/PhysRevD.98.076005
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We formulate the on-shell effective field theory (OSEFT) in an arbitrary frame and study its reparametrization invariance (RI), which ensures that it is respectful of Lorentz symmetry. In this formulation the OSEFT Lagrangian looks formally equivalent to the sum over light-like velocities of soft collinear effective ...
[ { "created": "Tue, 5 Jun 2018 13:34:27 GMT", "version": "v1" }, { "created": "Thu, 26 Jul 2018 12:30:21 GMT", "version": "v2" }, { "created": "Mon, 15 Oct 2018 07:44:29 GMT", "version": "v3" } ]
2018-10-17
[ [ "Carignano", "Stefano", "" ], [ "Manuel", "Cristina", "" ], [ "Torres-Rincon", "Juan M.", "" ] ]
We formulate the on-shell effective field theory (OSEFT) in an arbitrary frame and study its reparametrization invariance (RI), which ensures that it is respectful of Lorentz symmetry. In this formulation the OSEFT Lagrangian looks formally equivalent to the sum over light-like velocities of soft collinear effective fi...
hep-ph/0112145
Chung-Hsien Chou
Chung-Hsien Chou, Hsien-Hung Shih, Shih-Chang Lee, and Hsiang-nan Li
\Lambda_b \to \Lambda J/\psi decay in perturbative QCD
use revtex, 20 pages,1 figure
Phys.Rev. D65 (2002) 074030
10.1103/PhysRevD.65.074030
null
hep-ph
null
We calculate the amplitudes involved in the heavy baryon nonleptonic decay $\Lambda_b \rar \Lambda J/\psi$ using perturbative QCD factorization theorem, which are expressed as convolutions of hard $b$ quark decay amplitudes with the $\Lambda_b$ baryon, $\Lambda$ baryon and $J/\psi$ meson distribution amplitudes. It i...
[ { "created": "Tue, 11 Dec 2001 02:16:46 GMT", "version": "v1" } ]
2009-11-07
[ [ "Chou", "Chung-Hsien", "" ], [ "Shih", "Hsien-Hung", "" ], [ "Lee", "Shih-Chang", "" ], [ "Li", "Hsiang-nan", "" ] ]
We calculate the amplitudes involved in the heavy baryon nonleptonic decay $\Lambda_b \rar \Lambda J/\psi$ using perturbative QCD factorization theorem, which are expressed as convolutions of hard $b$ quark decay amplitudes with the $\Lambda_b$ baryon, $\Lambda$ baryon and $J/\psi$ meson distribution amplitudes. It is ...
2005.12936
Jun Gao
Jun Gao, Edmond L. Berger
Modeling of $t$-channel single top-quark production at the LHC
references added; published version
null
10.1016/j.physletb.2020.135886
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the modeling of $t$-channel single top-quark production at Large Hadron Collider (LHC) energies. We compare predictions at next-to-next-to-leading order in a 5-flavor scheme to those of next-to-leading order in a 4-flavor scheme, finding the two schemes agree within a few percent in general for the shape of ...
[ { "created": "Tue, 26 May 2020 18:00:34 GMT", "version": "v1" }, { "created": "Thu, 29 Oct 2020 05:04:03 GMT", "version": "v2" } ]
2020-10-30
[ [ "Gao", "Jun", "" ], [ "Berger", "Edmond L.", "" ] ]
We study the modeling of $t$-channel single top-quark production at Large Hadron Collider (LHC) energies. We compare predictions at next-to-next-to-leading order in a 5-flavor scheme to those of next-to-leading order in a 4-flavor scheme, finding the two schemes agree within a few percent in general for the shape of ki...
hep-ph/0003084
Anna Rossi
Zurab Berezhiani (L'Aquila & Tbilisi U.) and Anna Rossi (Padova U.)
Predictive Grand Unified Textures for Quark and Neutrino Masses and Mixings
52 LaTeX pages, 3 postscript figures, uses epsfig and feynmp. Typos corrected; in section 3 the presentation of the SO(10) x SU(3)_H model is expanded to motivate the pattern of both Higgs VEVs and Yukawa matrices. To be published on Nucl. Phys. B
Nucl.Phys.B594:113-168,2001
10.1016/S0550-3213(00)00653-2
DFAQ-99/TH/06, DFPD-99/TH/29
hep-ph
null
We propose new textures for the fermion Yukawa matrices which are generalizations of the so-called Stech ansatz. We discuss how these textures can be realized in supersymmetric grand unified models with horizontal symmetry SU(3)_H among the fermion generations. In this framework the mass and mixing hierarchy of fermi...
[ { "created": "Thu, 9 Mar 2000 18:10:38 GMT", "version": "v1" }, { "created": "Mon, 27 Nov 2000 12:36:34 GMT", "version": "v2" } ]
2014-11-17
[ [ "Berezhiani", "Zurab", "", "L'Aquila & Tbilisi U." ], [ "Rossi", "Anna", "", "Padova U." ] ]
We propose new textures for the fermion Yukawa matrices which are generalizations of the so-called Stech ansatz. We discuss how these textures can be realized in supersymmetric grand unified models with horizontal symmetry SU(3)_H among the fermion generations. In this framework the mass and mixing hierarchy of fermion...
2207.10151
York Schroder
Pablo Navarrete and York Schr\"oder
Tackling the infamous $g^6$ term of the QCD pressure
10 pages, 1 figure. Contribution to the proceedings of "Loops and Legs in Quantum Field Theory" (LL2022), Ettal, Germany; v2 to match the published version
null
null
null
hep-ph nucl-th
http://creativecommons.org/licenses/by/4.0/
We report on ongoing efforts to tackle an important open problem in QCD thermodynamics, namely an evaluation of the pressure to order $g^6$ in a weak-coupling expansion, corresponding to four loops. In particular, we identify a class of contributing Feynman sum-integrals with lower-loop factors, describe the formalis...
[ { "created": "Wed, 20 Jul 2022 19:09:14 GMT", "version": "v1" }, { "created": "Fri, 4 Nov 2022 15:27:53 GMT", "version": "v2" } ]
2022-11-07
[ [ "Navarrete", "Pablo", "" ], [ "Schröder", "York", "" ] ]
We report on ongoing efforts to tackle an important open problem in QCD thermodynamics, namely an evaluation of the pressure to order $g^6$ in a weak-coupling expansion, corresponding to four loops. In particular, we identify a class of contributing Feynman sum-integrals with lower-loop factors, describe the formalism ...
2102.10605
Wei Chen
Zi-Yan Yang, Qi-Nan Wang, Wei Chen and Hua-Xing Chen
Investigation of the stability for fully-heavy $bc\bar{b}\bar{c}$ tetraquark states
19 pages, 3 figures. Version appears in PRD
Phys. Rev. D 104, 014003 (2021)
10.1103/PhysRevD.104.014003
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
We study the existence of fully-heavy hidden-flavor $bc\bar{b}\bar{c}$ tetraquark states with various $J^{PC}=0^{\pm+}, 0^{--},1^{\pm\pm}, 2^{++}$, by using the moment QCD sum rule method augmented by fundamental inequalities. Using the moment sum rule analyses, our calculation shows that the masses for the S-wave po...
[ { "created": "Sun, 21 Feb 2021 13:43:41 GMT", "version": "v1" }, { "created": "Fri, 18 Jun 2021 14:35:26 GMT", "version": "v2" }, { "created": "Tue, 6 Jul 2021 16:11:04 GMT", "version": "v3" } ]
2021-07-13
[ [ "Yang", "Zi-Yan", "" ], [ "Wang", "Qi-Nan", "" ], [ "Chen", "Wei", "" ], [ "Chen", "Hua-Xing", "" ] ]
We study the existence of fully-heavy hidden-flavor $bc\bar{b}\bar{c}$ tetraquark states with various $J^{PC}=0^{\pm+}, 0^{--},1^{\pm\pm}, 2^{++}$, by using the moment QCD sum rule method augmented by fundamental inequalities. Using the moment sum rule analyses, our calculation shows that the masses for the S-wave posi...
hep-ph/9502341
Nikolaos Kidonakis
N. Kidonakis and J. Smith (ITP-Stony Brook)
Top quark inclusive differential distributions
20 pages LATEX uses REVTEX macros, 12 figures submitted as separate file. Complete postcript file including figures available at ftp://insti.physics.sunysb.edu/preprints/kidonaki/paper.tar.Z
Phys.Rev.D51:6092-6102,1995
10.1103/PhysRevD.51.6092
ITP-SB-94-63
hep-ph
null
The inclusive transverse momentum and rapidity distributions for top quark production at the Fermilab Tevatron are presented both in order $\alpha_s^3$ in QCD and using the resummation of the leading soft gluon corrections in all orders of QCD perturbation theory. The resummed results are uniformly larger than the $O...
[ { "created": "Fri, 17 Feb 1995 20:23:30 GMT", "version": "v1" } ]
2016-09-01
[ [ "Kidonakis", "N.", "", "ITP-Stony Brook" ], [ "Smith", "J.", "", "ITP-Stony Brook" ] ]
The inclusive transverse momentum and rapidity distributions for top quark production at the Fermilab Tevatron are presented both in order $\alpha_s^3$ in QCD and using the resummation of the leading soft gluon corrections in all orders of QCD perturbation theory. The resummed results are uniformly larger than the $O(\...
2004.05852
Takuya Shimazaki
Kenji Fukushima, Takuya Shimazaki, Lingxiao Wang
Mode Decomposed Chiral Magnetic Effect and Rotating Fermions
12 pages, 3 figures; references added, results unchanged, published in PRD
Phys. Rev. D 102, 014045 (2020)
10.1103/PhysRevD.102.014045
null
hep-ph quant-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a novel perspective to characterize the chiral magnetic and related effects in terms of angular decomposed modes. We find that the vector current and the chirality density are connected through a surprisingly simple relation for all the modes and any mass, which defines the mode decomposed chiral magnetic ...
[ { "created": "Mon, 13 Apr 2020 10:10:44 GMT", "version": "v1" }, { "created": "Thu, 30 Jul 2020 01:43:33 GMT", "version": "v2" } ]
2020-07-31
[ [ "Fukushima", "Kenji", "" ], [ "Shimazaki", "Takuya", "" ], [ "Wang", "Lingxiao", "" ] ]
We present a novel perspective to characterize the chiral magnetic and related effects in terms of angular decomposed modes. We find that the vector current and the chirality density are connected through a surprisingly simple relation for all the modes and any mass, which defines the mode decomposed chiral magnetic ef...
1702.02112
Harri Waltari
Mariana Frank, Benjamin Fuks, Katri Huitu, Santosh Kumar Rai and Harri Waltari
Resonant slepton production and right sneutrino dark matter in left-right supersymmetry
29 pages, 5 figures, revised version
JHEP 1705 (2017) 015
10.1007/JHEP05(2017)015
CUMQ-HEP-191, HIP-2017-01-TH, HRI-RECAPP-2017-001
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Right-handed sneutrinos are natural components of left-right symmetric supersymmetric models where the gauge sector is extended to include right-handed weak interactions. Unlike in other models where right-handed sneutrinos are gauge singlets, here the right sneutrino is part of a doublet and could be a dark matter c...
[ { "created": "Tue, 7 Feb 2017 17:35:52 GMT", "version": "v1" }, { "created": "Thu, 27 Apr 2017 11:20:09 GMT", "version": "v2" } ]
2017-05-09
[ [ "Frank", "Mariana", "" ], [ "Fuks", "Benjamin", "" ], [ "Huitu", "Katri", "" ], [ "Rai", "Santosh Kumar", "" ], [ "Waltari", "Harri", "" ] ]
Right-handed sneutrinos are natural components of left-right symmetric supersymmetric models where the gauge sector is extended to include right-handed weak interactions. Unlike in other models where right-handed sneutrinos are gauge singlets, here the right sneutrino is part of a doublet and could be a dark matter can...
1511.05242
Ivan Vitev
Leonard Gamberg, Zhong-Bo Kang, Ivan Vitev, Hongxi Xing
A Study of Quasi-parton Distribution Functions in the Diquark Spectator Model
10 pages, 5 eps figures, presented at QCD Evolution 2015
PoS QCDEV2015 (2015) 045
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
To facilitate lattice QCD calculations of nucleon structute, a set of quasi-parton distributions were recently introduced. These quasi-PDFs were shown to reduce to standard PDFs when the nucleon is boosted to high energies, $P_z\rightarrow \infty$. Since taking such limit is not feasible in lattice simulations, it is...
[ { "created": "Tue, 17 Nov 2015 01:16:16 GMT", "version": "v1" } ]
2016-05-24
[ [ "Gamberg", "Leonard", "" ], [ "Kang", "Zhong-Bo", "" ], [ "Vitev", "Ivan", "" ], [ "Xing", "Hongxi", "" ] ]
To facilitate lattice QCD calculations of nucleon structute, a set of quasi-parton distributions were recently introduced. These quasi-PDFs were shown to reduce to standard PDFs when the nucleon is boosted to high energies, $P_z\rightarrow \infty$. Since taking such limit is not feasible in lattice simulations, it is e...
1406.4513
Robert Schabinger
Andreas von Manteuffel and Robert M. Schabinger
A novel approach to integration by parts reduction
4 pages. Version 2 is the final, published version of this article
null
10.1016/j.physletb.2015.03.029
MITP/14-009
hep-ph cs.SC hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Integration by parts reduction is a standard component of most modern multi-loop calculations in quantum field theory. We present a novel strategy constructed to overcome the limitations of currently available reduction programs based on Laporta's algorithm. The key idea is to construct algebraic identities from nume...
[ { "created": "Tue, 17 Jun 2014 20:00:24 GMT", "version": "v1" }, { "created": "Mon, 21 Sep 2015 12:36:02 GMT", "version": "v2" } ]
2015-09-22
[ [ "von Manteuffel", "Andreas", "" ], [ "Schabinger", "Robert M.", "" ] ]
Integration by parts reduction is a standard component of most modern multi-loop calculations in quantum field theory. We present a novel strategy constructed to overcome the limitations of currently available reduction programs based on Laporta's algorithm. The key idea is to construct algebraic identities from numeri...
hep-ph/0012220
Nikolai Kivel
V.M.Braun and N.Kivel
Hard Exclusive Production of Tensor Mesons
7 pages, 3 figures
Phys.Lett. B501 (2001) 48-53
10.1016/S0370-2693(01)00095-8
TPR-00-23
hep-ph
null
We point out that hard exclusive production of tensor mesons $f_2(1270)$ with helicity $\lambda=\pm 2$ is dominated by the gluon component in the meson wave function and can be used to determine gluon admixture in tensor mesons in a theoretically clean manner. We present a detailed analysis of the tensor meson dist...
[ { "created": "Mon, 18 Dec 2000 11:54:14 GMT", "version": "v1" } ]
2016-09-06
[ [ "Braun", "V. M.", "" ], [ "Kivel", "N.", "" ] ]
We point out that hard exclusive production of tensor mesons $f_2(1270)$ with helicity $\lambda=\pm 2$ is dominated by the gluon component in the meson wave function and can be used to determine gluon admixture in tensor mesons in a theoretically clean manner. We present a detailed analysis of the tensor meson distribu...
2005.06983
Joan Elias-Mir\'o
Joan Elias Mir\'o, James Ingoldby, Marc Riembau
EFT anomalous dimensions from the S-matrix
v1: 22+9 pages. v2: 22+9 pages, typos corrected, edited for clarity. v3: minor changes, agrees with JHEP version
null
null
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We use the on-shell S-matrix and form factors to compute anomalous dimensions of higher dimension operators in the Standard Model Effective Field Theory. We find that in many instances, these computations are made simple by using the on-shell method. We first compute contributions to anomalous dimensions of operators...
[ { "created": "Thu, 14 May 2020 13:52:38 GMT", "version": "v1" }, { "created": "Wed, 27 May 2020 16:50:55 GMT", "version": "v2" }, { "created": "Fri, 18 Dec 2020 10:53:48 GMT", "version": "v3" } ]
2020-12-21
[ [ "Miró", "Joan Elias", "" ], [ "Ingoldby", "James", "" ], [ "Riembau", "Marc", "" ] ]
We use the on-shell S-matrix and form factors to compute anomalous dimensions of higher dimension operators in the Standard Model Effective Field Theory. We find that in many instances, these computations are made simple by using the on-shell method. We first compute contributions to anomalous dimensions of operators a...
2001.04516
Tomasz Stebel
Adrian Dumitru, Vladimir Skokov, Tomasz Stebel
Sub-femtometer scale color charge correlations in the proton
19 pages, 10 figures; tables of dipole scattering amplitude via two- and three-gluon exchange are available as ancillary files
Phys. Rev. D 101, 054004 (2020)
10.1103/PhysRevD.101.054004
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Color charge correlations in the proton at moderately small $x\sim 0.1$ are extracted from its light-cone wave function. The charge fluctuations are far from Gaussian and they exhibit interesting dependence on impact parameter and on the relative transverse momentum (or distance) of the gluon probes. We provide initi...
[ { "created": "Mon, 13 Jan 2020 19:46:52 GMT", "version": "v1" }, { "created": "Wed, 19 Feb 2020 21:59:02 GMT", "version": "v2" } ]
2020-03-11
[ [ "Dumitru", "Adrian", "" ], [ "Skokov", "Vladimir", "" ], [ "Stebel", "Tomasz", "" ] ]
Color charge correlations in the proton at moderately small $x\sim 0.1$ are extracted from its light-cone wave function. The charge fluctuations are far from Gaussian and they exhibit interesting dependence on impact parameter and on the relative transverse momentum (or distance) of the gluon probes. We provide initial...
hep-ph/9309202
Cvetic
G. Cvetic
CP-Violation in Bosonic Sector of SM with two Higgs Doublets
11 pages (standard LaTeX), 3 figures (available from the author), DO-TH 93-11
Phys.Rev.D48:5280-5285,1993
10.1103/PhysRevD.48.5280
null
hep-ph
null
We investigate CP-violation effects in the bosonic sector of the Standard Model (SM) with two Higgs doublets. First we calculate the mass eigenstates of the physical neutral Higgses for small but nonzero CP-violation parameter $\xi_{\ast}$, and then a ``forward-backward'' asymmetry ${\cal A}_{fb}$ for the decay $H \t...
[ { "created": "Wed, 1 Sep 1993 09:03:48 GMT", "version": "v1" } ]
2010-11-01
[ [ "Cvetic", "G.", "" ] ]
We investigate CP-violation effects in the bosonic sector of the Standard Model (SM) with two Higgs doublets. First we calculate the mass eigenstates of the physical neutral Higgses for small but nonzero CP-violation parameter $\xi_{\ast}$, and then a ``forward-backward'' asymmetry ${\cal A}_{fb}$ for the decay $H \to ...
hep-ph/0105181
Carlo Ewerz
Carlo Ewerz
Conformal Invariance of Unitarity Corrections
11 pages
Phys.Lett. B512 (2001) 239-246
10.1016/S0370-2693(01)00710-9
HD-THEP-01-16
hep-ph
null
We study perturbative unitarity corrections in the generalized leading logarithmic approximation in high energy QCD. It is shown that the corresponding amplitudes with up to six gluons in the t-channel are conformally invariant in impact parameter space. In particular we give a new representation for the two-to-six r...
[ { "created": "Thu, 17 May 2001 20:47:21 GMT", "version": "v1" } ]
2009-11-07
[ [ "Ewerz", "Carlo", "" ] ]
We study perturbative unitarity corrections in the generalized leading logarithmic approximation in high energy QCD. It is shown that the corresponding amplitudes with up to six gluons in the t-channel are conformally invariant in impact parameter space. In particular we give a new representation for the two-to-six reg...
2406.18734
Liner Santos
Liner Santos and Thiago Domingues
Introdu\c{c}\~ao \`a infer\^encia Bayesiana: t\'ecnicas estat\'isticas para an\'alise de dados de \'ions pesados relativ\'isticos
9 pages, in Portuguese language
Revista Brasileira de Fisica, 2024
10.5281/zenodo.11430830
null
hep-ph hep-th
http://creativecommons.org/licenses/by/4.0/
Under extreme conditions of temperature and pressure, it is believed that quarks and gluons (particles that mediate the interaction between quarks) can be "free" in a given volume. This hypothetical phase of matter is called plasma of quarks and gluons, QGP for its acronym in English. It is speculated that it existed...
[ { "created": "Wed, 26 Jun 2024 20:01:13 GMT", "version": "v1" } ]
2024-06-28
[ [ "Santos", "Liner", "" ], [ "Domingues", "Thiago", "" ] ]
Under extreme conditions of temperature and pressure, it is believed that quarks and gluons (particles that mediate the interaction between quarks) can be "free" in a given volume. This hypothetical phase of matter is called plasma of quarks and gluons, QGP for its acronym in English. It is speculated that it existed i...
1906.10137
Anders Johan Andreassen
Anders Andreassen, Ilya Feige, Christopher Frye, Matthew D. Schwartz
Binary JUNIPR: an interpretable probabilistic model for discrimination
6 pages, 3 figures
Phys. Rev. Lett. 123, 182001 (2019)
10.1103/PhysRevLett.123.182001
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
JUNIPR is an approach to unsupervised learning in particle physics that scaffolds a probabilistic model for jets around their representation as binary trees. Separate JUNIPR models can be learned for different event or jet types, then compared and explored for physical insight. The relative probabilities can also be ...
[ { "created": "Mon, 24 Jun 2019 18:00:02 GMT", "version": "v1" } ]
2019-11-06
[ [ "Andreassen", "Anders", "" ], [ "Feige", "Ilya", "" ], [ "Frye", "Christopher", "" ], [ "Schwartz", "Matthew D.", "" ] ]
JUNIPR is an approach to unsupervised learning in particle physics that scaffolds a probabilistic model for jets around their representation as binary trees. Separate JUNIPR models can be learned for different event or jet types, then compared and explored for physical insight. The relative probabilities can also be us...
hep-ph/0006172
Gerhard Ecker
G. Ecker, G. Isidori, G. Mueller, H. Neufeld and A. Pich
Electromagnetism in nonleptonic weak interactions
17 pages, 1 figure; 2 references added, final version for publication in Nucl. Phys. B
Nucl.Phys. B591 (2000) 419-434
10.1016/S0550-3213(00)00568-X
UWThPh-2000-17, LNF-00/016(P),FTUV/00-0614,IFIC/00-29
hep-ph
null
We construct a low-energy effective field theory that permits the complete treatment of isospin-breaking effects in nonleptonic weak interactions to next-to-leading order. To this end, we enlarge the chiral Lagrangian describing strong and Delta S=1 weak interactions by including electromagnetic terms with the photon...
[ { "created": "Thu, 15 Jun 2000 13:51:59 GMT", "version": "v1" }, { "created": "Tue, 10 Oct 2000 09:42:51 GMT", "version": "v2" } ]
2009-10-31
[ [ "Ecker", "G.", "" ], [ "Isidori", "G.", "" ], [ "Mueller", "G.", "" ], [ "Neufeld", "H.", "" ], [ "Pich", "A.", "" ] ]
We construct a low-energy effective field theory that permits the complete treatment of isospin-breaking effects in nonleptonic weak interactions to next-to-leading order. To this end, we enlarge the chiral Lagrangian describing strong and Delta S=1 weak interactions by including electromagnetic terms with the photon a...
1904.09785
Wei Chao
Wei Chao
Direct detections of Majorana dark matter in vector portal
16 pages, 6 figures
null
10.1007/JHEP11(2019)013
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we investigate the direct detections of Majorana dark matter (MDM) in vector portal. Taking into account that the tree-level scattering cross sections in these models are either dark matter velocity suppressed or spin-dependent, we calculate radiative corrections to the spin-independent cross section in...
[ { "created": "Mon, 22 Apr 2019 09:49:59 GMT", "version": "v1" } ]
2020-01-08
[ [ "Chao", "Wei", "" ] ]
In this paper we investigate the direct detections of Majorana dark matter (MDM) in vector portal. Taking into account that the tree-level scattering cross sections in these models are either dark matter velocity suppressed or spin-dependent, we calculate radiative corrections to the spin-independent cross section in e...
hep-ph/0208215
A. A. Arkhipov
A.A. Arkhipov
L-Particle and Kaluza-Klein World
11 pages, 3 figures, Latex2e;an explanation of (super)narrowness of dibaryon resonances added; Table 2 slightly corrected, some explanation added
null
null
null
hep-ph nucl-th
null
We present some arguments in favour of that the Kaluza-Klein picture of the world has been confirmed in the experiments at very low energies where the nucleon-nucleon dynamics has been studied. Early predicted ${\cal L}$-particle is related to the new scale of strong nucleon-nucleon forces in the spirit of Kaluza-Kle...
[ { "created": "Fri, 23 Aug 2002 17:36:33 GMT", "version": "v1" }, { "created": "Tue, 22 Oct 2002 08:40:48 GMT", "version": "v2" }, { "created": "Thu, 20 Feb 2003 09:15:11 GMT", "version": "v3" }, { "created": "Wed, 9 Apr 2003 08:29:11 GMT", "version": "v4" } ]
2007-05-23
[ [ "Arkhipov", "A. A.", "" ] ]
We present some arguments in favour of that the Kaluza-Klein picture of the world has been confirmed in the experiments at very low energies where the nucleon-nucleon dynamics has been studied. Early predicted ${\cal L}$-particle is related to the new scale of strong nucleon-nucleon forces in the spirit of Kaluza-Klein...