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hep-ph/9312290
Tatsuya Nakada
Tatsuya Nakada
Review on CP Violation
35, PSI-PR-93-18
AIP Conf.Proc.302:425-463,1994
10.1063/1.45461
null
hep-ph
null
A phenomenological description of the neutral K and B meson systems is presented. The situation of the current CP violation experiments is described and a detailed discussion of their results is given, followed by some future prospects.
[ { "created": "Wed, 15 Dec 1993 18:36:02 GMT", "version": "v1" } ]
2015-06-25
[ [ "Nakada", "Tatsuya", "" ] ]
A phenomenological description of the neutral K and B meson systems is presented. The situation of the current CP violation experiments is described and a detailed discussion of their results is given, followed by some future prospects.
2306.00912
Theodore Brennan
T. Daniel Brennan and Sungwoo Hong
Introduction to Generalized Global Symmetries in QFT and Particle Physics
74 pages plus appendices
null
null
null
hep-ph hep-th
http://creativecommons.org/licenses/by/4.0/
Generalized symmetries (also known as categorical symmetries) is a newly developing technique for studying quantum field theories. It has given us new insights into the structure of QFT and many new powerful tools that can be applied to the study of particle phenomenology. In these notes we give an exposition to the ...
[ { "created": "Thu, 1 Jun 2023 17:14:35 GMT", "version": "v1" }, { "created": "Fri, 2 Jun 2023 16:28:51 GMT", "version": "v2" } ]
2023-06-06
[ [ "Brennan", "T. Daniel", "" ], [ "Hong", "Sungwoo", "" ] ]
Generalized symmetries (also known as categorical symmetries) is a newly developing technique for studying quantum field theories. It has given us new insights into the structure of QFT and many new powerful tools that can be applied to the study of particle phenomenology. In these notes we give an exposition to the to...
1609.07759
Chandan Mondal
Chandan Mondal
Form factors and transverse charge and magnetization densities in the hard-wall AdS/QCD model
22 pages, 12 figures; version to appear in Phys. Rev. D
Phys. Rev. D 94, 073001 (2016)
10.1103/PhysRevD.94.073001
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a study of the flavor form factors in the framework of a hard-wall AdS/QCD model and compare with the available experimental data. We obtain the flavor form factors by decomposing the Dirac and Pauli form factors for the nucleons using the charge and isospin symmetry. Further, we present a detailed study o...
[ { "created": "Sun, 25 Sep 2016 15:26:51 GMT", "version": "v1" }, { "created": "Wed, 28 Sep 2016 11:00:30 GMT", "version": "v2" } ]
2016-10-25
[ [ "Mondal", "Chandan", "" ] ]
We present a study of the flavor form factors in the framework of a hard-wall AdS/QCD model and compare with the available experimental data. We obtain the flavor form factors by decomposing the Dirac and Pauli form factors for the nucleons using the charge and isospin symmetry. Further, we present a detailed study of ...
2302.03968
Lingyun Dai
Shi-Qing Kuang, Qi Zhou, Di Guo, Qin-He Yang, and Ling-Yun Dai
Study of $X(6900)$ with unitarized coupled channel scattering amplitudes
23 pages, 4 figures, add a few discussions
null
10.1140/epjc/s10052-023-11473-3
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, we study the resonant state $X(6900)$. The scattering amplitudes of coupled channels, $J/\psi J/\psi$-$J/\psi \psi(2S)$-$J/\psi \psi(3770)$, are constructed with the interaction of four vector mesons described by effective Lagrangians. The amplitudes are calculated up to one loop, decomposed by partial...
[ { "created": "Wed, 8 Feb 2023 09:53:19 GMT", "version": "v1" }, { "created": "Sun, 5 Mar 2023 09:32:40 GMT", "version": "v2" } ]
2023-05-24
[ [ "Kuang", "Shi-Qing", "" ], [ "Zhou", "Qi", "" ], [ "Guo", "Di", "" ], [ "Yang", "Qin-He", "" ], [ "Dai", "Ling-Yun", "" ] ]
In this paper, we study the resonant state $X(6900)$. The scattering amplitudes of coupled channels, $J/\psi J/\psi$-$J/\psi \psi(2S)$-$J/\psi \psi(3770)$, are constructed with the interaction of four vector mesons described by effective Lagrangians. The amplitudes are calculated up to one loop, decomposed by partial w...
hep-ph/0207051
Jan Kalinowski
Jan Kalinowski
Slepton Flavour Violation at Colliders
8 pages, latex, 1 figure, a typo in Tab.1 fixed
Acta Phys.Polon. B33 (2002) 2613-2620
null
null
hep-ph
null
In supersymmetric extensions of the Standard Model, the lepton flavour violation (LFV) is closely related to the structure of slepton masses and mixing. Allowing for the most general flavour structure of the slepton sector, consistent with the experimental limits on rare lepton decays, large and distinct signals of L...
[ { "created": "Wed, 3 Jul 2002 16:26:29 GMT", "version": "v1" }, { "created": "Fri, 12 Jul 2002 07:32:03 GMT", "version": "v2" } ]
2007-05-23
[ [ "Kalinowski", "Jan", "" ] ]
In supersymmetric extensions of the Standard Model, the lepton flavour violation (LFV) is closely related to the structure of slepton masses and mixing. Allowing for the most general flavour structure of the slepton sector, consistent with the experimental limits on rare lepton decays, large and distinct signals of LFV...
2011.03039
Yu Jia
Feng Feng, Yingsheng Huang, Yu Jia, Wen-Long Sang, Jia-Yue Zhang
Exclusive radiative production of fully-charmed tetraquarks at $B$ Factory
11 pages, 3 figures
null
10.1016/j.physletb.2021.136368
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We apply the newly developed NRQCD factorization formula to analyze the exclusive production of the fully-charmed tetraquark $T_{4c}$ plus a hard photon at $B$ factory. For simplicity, in this work we have concentrated on the associated production of the $0^{++}$ and $2^{++}$ tetraquarks with a photon. With some roug...
[ { "created": "Thu, 5 Nov 2020 18:57:00 GMT", "version": "v1" } ]
2021-05-19
[ [ "Feng", "Feng", "" ], [ "Huang", "Yingsheng", "" ], [ "Jia", "Yu", "" ], [ "Sang", "Wen-Long", "" ], [ "Zhang", "Jia-Yue", "" ] ]
We apply the newly developed NRQCD factorization formula to analyze the exclusive production of the fully-charmed tetraquark $T_{4c}$ plus a hard photon at $B$ factory. For simplicity, in this work we have concentrated on the associated production of the $0^{++}$ and $2^{++}$ tetraquarks with a photon. With some rough ...
1209.0040
Andr\'e David
LHC Higgs Cross Section Working Group: A. David, A. Denner, M. Duehrssen, M. Grazzini, C. Grojean, G. Passarino, M. Schumacher, M. Spira, G. Weiglein, M. Zanetti
LHC HXSWG interim recommendations to explore the coupling structure of a Higgs-like particle
null
null
null
LHCHXSWG-2012-001
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This document presents an interim framework in which the coupling structure of a Higgs-like particle can be studied. After discussing different options and approximations, recommendations on specific benchmark parametrizations to be used to fit the data are given.
[ { "created": "Sat, 1 Sep 2012 00:47:56 GMT", "version": "v1" } ]
2012-09-04
[ [ "LHC Higgs Cross Section Working Group", "", "" ], [ "David", "A.", "" ], [ "Denner", "A.", "" ], [ "Duehrssen", "M.", "" ], [ "Grazzini", "M.", "" ], [ "Grojean", "C.", "" ], [ "Passarino", "G.", "" ], ...
This document presents an interim framework in which the coupling structure of a Higgs-like particle can be studied. After discussing different options and approximations, recommendations on specific benchmark parametrizations to be used to fit the data are given.
hep-ph/0307331
Malgorzata Worek
K. Desch, A. Imhof, Z. Was and M. Worek
Probing the CP nature of the Higgs boson at linear colliders with tau spin correlations; the case of mixed scalar--pseudoscalar couplings
10 pages, 7 figures, LaTeX. Corrections of published version included
Phys.Lett. B579 (2004) 157-164
10.1016/j.physletb.2003.10.074
CERN-TH-2003-166, LC-PHSM-2003-068
hep-ph
null
The prospects for the measurement of the pseudoscalar admixture in the h-tau-tau coupling to a Standard Model Higgs boson of 120 GeV mass are discussed in a quantitative manner e+ e- collisions of 350 GeV centre-of-mass energy. Specific angular distributions in the h --> tau tau; tau --> rho nu decay chain can be use...
[ { "created": "Sat, 26 Jul 2003 20:25:05 GMT", "version": "v1" }, { "created": "Mon, 2 Feb 2004 19:40:41 GMT", "version": "v2" } ]
2010-04-05
[ [ "Desch", "K.", "" ], [ "Imhof", "A.", "" ], [ "Was", "Z.", "" ], [ "Worek", "M.", "" ] ]
The prospects for the measurement of the pseudoscalar admixture in the h-tau-tau coupling to a Standard Model Higgs boson of 120 GeV mass are discussed in a quantitative manner e+ e- collisions of 350 GeV centre-of-mass energy. Specific angular distributions in the h --> tau tau; tau --> rho nu decay chain can be used ...
2304.05921
Hsiang-nan Li
Hsiang-nan Li
Dispersive determination of electroweak-scale masses
9 pages, 4 figures, version to appear in Physical Review D
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We demonstrate that the Higgs boson mass can be extracted from the dispersion relation obeyed by the correlation function of two $b$-quark scalar currents. The solution to the dispersion relation with the input from the perturbative evaluation of the correlation function up to next-to-leading order in QCD and with th...
[ { "created": "Wed, 12 Apr 2023 15:39:43 GMT", "version": "v1" }, { "created": "Mon, 15 May 2023 14:56:35 GMT", "version": "v2" }, { "created": "Thu, 7 Sep 2023 13:03:25 GMT", "version": "v3" } ]
2023-09-08
[ [ "Li", "Hsiang-nan", "" ] ]
We demonstrate that the Higgs boson mass can be extracted from the dispersion relation obeyed by the correlation function of two $b$-quark scalar currents. The solution to the dispersion relation with the input from the perturbative evaluation of the correlation function up to next-to-leading order in QCD and with the ...
0908.0404
Gino Isidori
Gino Isidori
Effective Theories for Flavour Physics beyond the Standard Model
Invited talk at International Workshop on Effective Field Theories: From the Pion to the Upsilon (EFT 09), Valencia, Spain, 2-6 Feb 2009
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the role of flavour physics in building effective theories at the TeV scale. Particular attention is devoted to the Minimal Flavour Violation hypothesis, both in the quark and in the lepton sector. Alternative flavour-protection mechanisms, such as the hierarchical fermion profiles of models with a warped ...
[ { "created": "Tue, 4 Aug 2009 08:10:16 GMT", "version": "v1" } ]
2009-08-05
[ [ "Isidori", "Gino", "" ] ]
We discuss the role of flavour physics in building effective theories at the TeV scale. Particular attention is devoted to the Minimal Flavour Violation hypothesis, both in the quark and in the lepton sector. Alternative flavour-protection mechanisms, such as the hierarchical fermion profiles of models with a warped fi...
2010.11717
Minxi He
Minxi He
Perturbative Reheating in the Mixed Higgs-$R^2$ Model
20 pages plus appendices and references. Match published version
JCAP 05 (2021) 021
10.1088/1475-7516/2021/05/021
RESCEU-20/20
hep-ph astro-ph.CO gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The preheating process in the mixed Higgs-$ R^2 $ model has been investigated in depth recently, but the analysis of perturbative reheating is still missing. In this paper, we discuss the effect of perturbative decay during (p)reheating in this model. It is shown that perturbative decay can play an important role thr...
[ { "created": "Thu, 22 Oct 2020 13:44:19 GMT", "version": "v1" }, { "created": "Mon, 10 May 2021 12:23:00 GMT", "version": "v2" } ]
2021-06-14
[ [ "He", "Minxi", "" ] ]
The preheating process in the mixed Higgs-$ R^2 $ model has been investigated in depth recently, but the analysis of perturbative reheating is still missing. In this paper, we discuss the effect of perturbative decay during (p)reheating in this model. It is shown that perturbative decay can play an important role throu...
hep-ph/0105008
Antonio Pineda
Antonio Pineda
Determination of the bottom quark mass from the $\Upsilon(1S)$ system
32 pages, LaTeX, 7 figures; Minor changes, journal version
JHEP0106:022,2001
10.1088/1126-6708/2001/06/022
TTP01-12
hep-ph hep-ex hep-lat
null
We approximately compute the normalization constant of the first infrared renormalon of the pole mass (and the singlet static potential). Estimates of higher order terms in the perturbative relation between the pole mass and the $\MS$ mass (and in the relation between the singlet static potential and $\alpha_s$) are ...
[ { "created": "Tue, 1 May 2001 20:13:48 GMT", "version": "v1" }, { "created": "Thu, 28 Jun 2001 15:26:01 GMT", "version": "v2" } ]
2009-11-07
[ [ "Pineda", "Antonio", "" ] ]
We approximately compute the normalization constant of the first infrared renormalon of the pole mass (and the singlet static potential). Estimates of higher order terms in the perturbative relation between the pole mass and the $\MS$ mass (and in the relation between the singlet static potential and $\alpha_s$) are gi...
2302.01765
Joan Soto
Joan Soto and Sandra Tom\`as Valls
Hyperfine splittings of heavy quarkonium hybrids
10 pages, 3 figures, 5 tables, matches journal version
null
10.1103/PhysRevD.108.014025
null
hep-ph hep-lat
http://creativecommons.org/licenses/by/4.0/
In the framework of the Born-Oppenheimer Effective Field Theory, the hyperfine structure of heavy quarkonium hybrids at leading order in the 1/m Q expansion is determined by two potentials. We estimate those potentials by interpolating between the known short distance behavior and the long distance behavior calculate...
[ { "created": "Fri, 3 Feb 2023 14:25:27 GMT", "version": "v1" }, { "created": "Fri, 1 Sep 2023 11:06:57 GMT", "version": "v2" } ]
2023-09-04
[ [ "Soto", "Joan", "" ], [ "Valls", "Sandra Tomàs", "" ] ]
In the framework of the Born-Oppenheimer Effective Field Theory, the hyperfine structure of heavy quarkonium hybrids at leading order in the 1/m Q expansion is determined by two potentials. We estimate those potentials by interpolating between the known short distance behavior and the long distance behavior calculated ...
1606.02504
Sampsa Vihonen
C.R. Das, Jukka Maalampi, Joao Pulido and Sampsa Vihonen
Optimizing the $\theta_{23}$ octant search in long baseline neutrino experiments
16 pages, 4 figures
null
10.1088/1742-6596/888/1/012219
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the possibility of determining the octant of the neutrino mixing angle $\theta_{23}$, that is, whether $\theta_{23}> 45^\circ$ or $\theta_{23}<45^\circ$, in long baseline neutrino experiments. Here we numerically derived the sensitivity limits within which these experiments can determine, by measuring the pr...
[ { "created": "Wed, 8 Jun 2016 10:54:54 GMT", "version": "v1" }, { "created": "Fri, 14 Oct 2016 09:37:57 GMT", "version": "v2" }, { "created": "Mon, 17 Dec 2018 14:30:22 GMT", "version": "v3" } ]
2018-12-18
[ [ "Das", "C. R.", "" ], [ "Maalampi", "Jukka", "" ], [ "Pulido", "Joao", "" ], [ "Vihonen", "Sampsa", "" ] ]
We study the possibility of determining the octant of the neutrino mixing angle $\theta_{23}$, that is, whether $\theta_{23}> 45^\circ$ or $\theta_{23}<45^\circ$, in long baseline neutrino experiments. Here we numerically derived the sensitivity limits within which these experiments can determine, by measuring the prob...
2202.04336
Rishabh Jain
Wei-shu Hou, Rishabh Jain and Chung Kao
Searching for extra Higgs bosons via $pp\to H,A\to \tau\mu, \tau\tau $ at the Large Hadron Collider
20 pages, 11 figures, Version to appear in the European Physical Journal C
null
null
OU-HEP-220208
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
We extend heavy Higgs searches at the Large Hadron Collider for $H \to \tau \mu$ by CMS, and $H \to \tau\tau$ by ATLAS and CMS, to study discovery prospects of extra Higgs states in $pp \to H,A \to \tau \mu, \tau\tau$ with $e\mu + E_T$ and $j_{\tau} \mu + E_T$ final states, where $j_{\tau} = \pi \, , \rho\, , a_1$ an...
[ { "created": "Wed, 9 Feb 2022 08:45:36 GMT", "version": "v1" }, { "created": "Wed, 22 Nov 2023 09:36:18 GMT", "version": "v2" } ]
2023-11-23
[ [ "Hou", "Wei-shu", "" ], [ "Jain", "Rishabh", "" ], [ "Kao", "Chung", "" ] ]
We extend heavy Higgs searches at the Large Hadron Collider for $H \to \tau \mu$ by CMS, and $H \to \tau\tau$ by ATLAS and CMS, to study discovery prospects of extra Higgs states in $pp \to H,A \to \tau \mu, \tau\tau$ with $e\mu + E_T$ and $j_{\tau} \mu + E_T$ final states, where $j_{\tau} = \pi \, , \rho\, , a_1$ and ...
2210.06215
HongWei Ke
Hong-Wei Ke, Yi-Fan Shi, Xiao-Hai Liu and Xue-Qian Li
Possible molecular states of $\bar D^{*}K^{*}$ ($ D^{*}K^{*}$) and the new exotic states $X_0(2900)$ and $X_1(2900)$ ($T^a_{cs0}(2900)^0$ and $T^a_{cs0}(2900)^{++}$)
14 pages, 2 figures and 5 tables. Accepted by PRD. arXiv admin note: text overlap with arXiv:2112.14142
Physical Review D 106, 114032 (2022)
10.1103/PhysRevD.106.114032
null
hep-ph hep-ex
http://creativecommons.org/licenses/by-nc-nd/4.0/
Two iso-singlet hadron states $X_0(2900)$ and $X_1(2900)$ with $J=0$ and 1 respectively, discovered by the LHCb collaboration in 2020, were identified as molecular bound states of $\bar D^*K^*$. Recently two structures $T^a_{cs0}(2900)^0$ and $T^a_{cs0}(2900)^{++}$ have been observed at the hadron spectra, one would ...
[ { "created": "Wed, 12 Oct 2022 14:01:27 GMT", "version": "v1" }, { "created": "Mon, 19 Dec 2022 12:02:25 GMT", "version": "v2" } ]
2023-01-02
[ [ "Ke", "Hong-Wei", "" ], [ "Shi", "Yi-Fan", "" ], [ "Liu", "Xiao-Hai", "" ], [ "Li", "Xue-Qian", "" ] ]
Two iso-singlet hadron states $X_0(2900)$ and $X_1(2900)$ with $J=0$ and 1 respectively, discovered by the LHCb collaboration in 2020, were identified as molecular bound states of $\bar D^*K^*$. Recently two structures $T^a_{cs0}(2900)^0$ and $T^a_{cs0}(2900)^{++}$ have been observed at the hadron spectra, one would su...
1207.0462
Gavin Salam
Gavin P. Salam
QCD in hadron collisions
9 pages, 4 figures, contribution to the proceedings of La Thuile 2012, the XXVI Rencontres de Physique de la Vall\'ee d'Aoste
null
10.1393/ncc/i2012-11362-x
null
hep-ph
http://creativecommons.org/licenses/by-nc-sa/3.0/
This talk examines recent progress in collider QCD and some facets of the interplay between these developments and searches for new particles and phenomena at the Tevatron and LHC.
[ { "created": "Mon, 2 Jul 2012 18:24:41 GMT", "version": "v1" } ]
2022-03-02
[ [ "Salam", "Gavin P.", "" ] ]
This talk examines recent progress in collider QCD and some facets of the interplay between these developments and searches for new particles and phenomena at the Tevatron and LHC.
1805.07342
Kunio Kaneta
Emilian Dudas, Tony Gherghetta, Kunio Kaneta, Yann Mambrini, Keith A. Olive
Gravitino Decay in High Scale Supersymmetry with R-parity Violation
27 pages, 4 figures
Phys. Rev. D 98, 015030 (2018)
10.1103/PhysRevD.98.015030
CPHT-RR034.052018, UMN--TH--3718/18, FTPI--MINN--18/08, LPT-Orsay-18-62
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the effects of R-parity violation due to the inclusion of a bilinear $\mu^\prime L H_u$ superpotential term in high scale supersymmetric models with an EeV scale gravitino as dark matter. Although the typical phenomenological limits on this coupling (e.g. due to lepton number violation and the preservatio...
[ { "created": "Fri, 18 May 2018 17:50:23 GMT", "version": "v1" } ]
2018-08-01
[ [ "Dudas", "Emilian", "" ], [ "Gherghetta", "Tony", "" ], [ "Kaneta", "Kunio", "" ], [ "Mambrini", "Yann", "" ], [ "Olive", "Keith A.", "" ] ]
We consider the effects of R-parity violation due to the inclusion of a bilinear $\mu^\prime L H_u$ superpotential term in high scale supersymmetric models with an EeV scale gravitino as dark matter. Although the typical phenomenological limits on this coupling (e.g. due to lepton number violation and the preservation ...
hep-ph/9702317
Roman Nevzorov
J.M.Frere (Universite Libre de Bruxelles), R.B.Nevzorov, V.A.Novikov, M.I.Vysotsky (ITEP, Moscow)
Neutrino Magnetic Moment Behaviour in a Renormalizable Model
9 pages, 2 Postscript figures
Phys.Atom.Nucl. 60 (1997) 1662-1665; Yad.Fiz. 60N10 (1997) 1820-1823
null
ITEP-9-97
hep-ph
null
We have shown in hep-ph/9608266 that a neutrino magnetic moment form factor $\mu_{\nu} (q^2)$ could be considerably amplified at low momentum transfer,$q^2 \leq m_N^2$, at the cost of introducing an extra light neutral fermion $N$ with mass $m_N$ and nonzero magnetic moment. It was assumed that the magnetic moment of...
[ { "created": "Wed, 12 Feb 1997 19:15:54 GMT", "version": "v1" } ]
2016-09-06
[ [ "Frere", "J. M.", "", "Universite Libre de Bruxelles" ], [ "Nevzorov", "R. B.", "", "ITEP, Moscow" ], [ "Novikov", "V. A.", "", "ITEP, Moscow" ], [ "Vysotsky", "M. I.", "", "ITEP, Moscow" ] ]
We have shown in hep-ph/9608266 that a neutrino magnetic moment form factor $\mu_{\nu} (q^2)$ could be considerably amplified at low momentum transfer,$q^2 \leq m_N^2$, at the cost of introducing an extra light neutral fermion $N$ with mass $m_N$ and nonzero magnetic moment. It was assumed that the magnetic moment of $...
hep-ph/0310194
Konstantinos Dimopoulos
K. Dimopoulos and M. Axenides
Hybrid Inflation without Flat Directions and without Primordial Black Holes
20 pages, LaTeX, 4 figures, added material and references, version submitted to journal
JCAP 0506:008,2005
10.1088/1475-7516/2005/06/008
null
hep-ph astro-ph gr-qc hep-th
null
We investigate the possibility that the Universe may inflate due to moduli fields, corresponding to flat directions of supersymmetry, lifted by supergravity corrections. Using a hybrid-type potential we obtain a two-stage inflationary model. Depending on the curvature of the potential the first stage corresponds to a...
[ { "created": "Thu, 16 Oct 2003 15:37:06 GMT", "version": "v1" }, { "created": "Mon, 10 Nov 2003 16:15:43 GMT", "version": "v2" }, { "created": "Wed, 1 Sep 2004 17:03:22 GMT", "version": "v3" } ]
2011-01-20
[ [ "Dimopoulos", "K.", "" ], [ "Axenides", "M.", "" ] ]
We investigate the possibility that the Universe may inflate due to moduli fields, corresponding to flat directions of supersymmetry, lifted by supergravity corrections. Using a hybrid-type potential we obtain a two-stage inflationary model. Depending on the curvature of the potential the first stage corresponds to a p...
hep-ph/0404063
Pawel Jankowski
F.Cornet (Granada U.), P.Jankowski (Warsaw U.) and M.Krawczyk (Warsaw U.)
A New 5 Flavour NLO Analysis and Parametrizations of Parton Distributions of the Real Photon
49 pages, 27 postscript figures; FORTRAN programs available at http://www.fuw.edu.pl/~pjank/param.html
Phys.Rev.D70:093004,2004
10.1103/PhysRevD.70.093004
null
hep-ph
null
New, radiatively generated, NLO quark (u,d,s,c,b) and gluon densities in a real, unpolarized photon are presented. We perform three global fits, based on the NLO DGLAP evolution equations for Q^2>1 GeV^2, to all the available structure function F_2^gamma(x,Q^2) data. As in our previous LO analysis we utilize two theo...
[ { "created": "Wed, 7 Apr 2004 16:54:09 GMT", "version": "v1" } ]
2014-11-17
[ [ "Cornet", "F.", "", "Granada U." ], [ "Jankowski", "P.", "", "Warsaw U." ], [ "Krawczyk", "M.", "", "Warsaw\n U." ] ]
New, radiatively generated, NLO quark (u,d,s,c,b) and gluon densities in a real, unpolarized photon are presented. We perform three global fits, based on the NLO DGLAP evolution equations for Q^2>1 GeV^2, to all the available structure function F_2^gamma(x,Q^2) data. As in our previous LO analysis we utilize two theore...
1905.00253
Hamza Taibi
Hamza Taibi and Nourredine Mebarki
Constraints on electroweak gauged unparticle model from the oblique parameters S and T
5 pages, 4 figures
null
10.1142/S0217732320502417
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The oblique parameters $S$ and $T$ are calculated in a gauged unparticles model based on the electroweak group $SU(2)*U(1)$ and it's parameters space is constrained using electroweak precision measurements.
[ { "created": "Wed, 1 May 2019 10:47:21 GMT", "version": "v1" } ]
2020-10-28
[ [ "Taibi", "Hamza", "" ], [ "Mebarki", "Nourredine", "" ] ]
The oblique parameters $S$ and $T$ are calculated in a gauged unparticles model based on the electroweak group $SU(2)*U(1)$ and it's parameters space is constrained using electroweak precision measurements.
hep-ph/9412209
Stefano Moretti
S. Moretti and W.J. Stirling
Contributions of below--threshold decays to ${\cal {MSSM}}$ Higgs branching ratios
15 pages, latex, 5 figures appended as uuencoded files
Phys.Lett. B347 (1995) 291-299; Erratum-ibid. B366 (1996) 451
10.1016/0370-2693(95)00088-3
DFTT 60/94, DTP/94/104
hep-ph
null
We calculate all the experimentally relevant branching ratios of the Higgs bosons of the Minimal Supersymmetric Standard Model, paying particular attention to the contributions from below--threshold decays. We show that in some cases these can significantly change the pattern of branching ratios calculated without ta...
[ { "created": "Thu, 1 Dec 1994 22:53:41 GMT", "version": "v1" } ]
2009-10-28
[ [ "Moretti", "S.", "" ], [ "Stirling", "W. J.", "" ] ]
We calculate all the experimentally relevant branching ratios of the Higgs bosons of the Minimal Supersymmetric Standard Model, paying particular attention to the contributions from below--threshold decays. We show that in some cases these can significantly change the pattern of branching ratios calculated without taki...
0807.0020
Gregory Soyez
Gregory Soyez
The dipole picture in DIS: saturation and heavy quarks
4 pages, presented at the 16th workshop on Deep Inelastic Scattering, 7-11 April 2008, UCL, London, UK
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the description of the proton structure function within the dipole factorisation framework. We parametrise the forward dipole amplitude to account for saturation as predicted by the small-x QCD evolution equations. Contrarily to previous models, the saturation scale does not decrease when taking heavy quar...
[ { "created": "Mon, 30 Jun 2008 21:14:13 GMT", "version": "v1" } ]
2008-07-02
[ [ "Soyez", "Gregory", "" ] ]
We discuss the description of the proton structure function within the dipole factorisation framework. We parametrise the forward dipole amplitude to account for saturation as predicted by the small-x QCD evolution equations. Contrarily to previous models, the saturation scale does not decrease when taking heavy quarks...
hep-ph/0203274
Jun Tabei
J. Tabei and H. Hotta
Constraints on $\tan{\beta}$ in SUSY SU(5) GUT
21 pages, 12 figures, 2 tabels
null
null
null
hep-ph
null
On the evaluation of $\tan{\beta}$ is revisited by the method of the renormalization group with the criteria of the bottom-tau unification in the SUSY SU(5) GUT model. Among the conventional supersymmetric theories, an energy-scale constant $M_{SUSY}$ is introduced by-hand to decouple the lower energy-scale region fr...
[ { "created": "Fri, 29 Mar 2002 14:32:08 GMT", "version": "v1" }, { "created": "Mon, 8 Apr 2002 11:09:46 GMT", "version": "v2" } ]
2007-05-23
[ [ "Tabei", "J.", "" ], [ "Hotta", "H.", "" ] ]
On the evaluation of $\tan{\beta}$ is revisited by the method of the renormalization group with the criteria of the bottom-tau unification in the SUSY SU(5) GUT model. Among the conventional supersymmetric theories, an energy-scale constant $M_{SUSY}$ is introduced by-hand to decouple the lower energy-scale region from...
hep-ph/0503261
David Hitlin
JoAnne. L. Hewett, David G. Hitlin (eds), T. Abe, K. Agashe, J. Albert, A. Ali, D. Atwood, C. Bauer, C. Bernard, I. Bigi,, A.J. Buras, G. Burdman, M. Ciuchini, M. Convery, S. Dasu, A. Datta, M. Datta, A. Dedes, D. del Re, D.A. Demir, F. Di Lodovico, D. Dujmic, G. Eigen, U. Egede, A. Falk, Th. Feldmann, S. Gopal...
The Discovery Potential of a Super B Factory
476 pages. Printed copies may be obtained by request to kwebb@slac.stanford.edu . arXiv admin note: v2 appears to be identical to v1
null
null
SLAC-R-709
hep-ph
null
The Proceedings of the 2003 SLAC Workshops on flavor physics with a high luminosity asymmetric e+e- collider. The sensitivity of flavor physics to physics beyond the Standard Model is addressed in detail, in the context of the improvement of experimental measurements and theoretical calculations.
[ { "created": "Fri, 25 Mar 2005 13:28:30 GMT", "version": "v1" }, { "created": "Fri, 15 Apr 2005 17:28:31 GMT", "version": "v2" } ]
2012-04-15
[ [ "Hewett", "JoAnne. L.", "", "eds" ], [ "Hitlin", "David G.", "", "eds" ], [ "Abe", "T.", "" ], [ "Agashe", "K.", "" ], [ "Albert", "J.", "" ], [ "Ali", "A.", "" ], [ "Atwood", "D.", "" ], [ ...
The Proceedings of the 2003 SLAC Workshops on flavor physics with a high luminosity asymmetric e+e- collider. The sensitivity of flavor physics to physics beyond the Standard Model is addressed in detail, in the context of the improvement of experimental measurements and theoretical calculations.
2206.10320
Papia Panda
Papia Panda, Monojit Ghosh, Priya Mishra, Rukmani Mohanta
Extracting the best physics sensitivity from T2HKK: A study on optimal detector volume
22 pages, 12 figures, 3 tables, Version accepted for publication in Phys. Rev. D
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
T2HK is an upcoming long-baseline experiment in Japan which will have two water Cherenkov detector tanks of 187 kt volume each at distance of 295 km from the source. An alternative project, T2HKK is also under consideration where one of the water tanks will be moved to Korea at a distance of 1100 km. The flux at 295 ...
[ { "created": "Tue, 21 Jun 2022 12:40:58 GMT", "version": "v1" }, { "created": "Mon, 26 Sep 2022 12:57:17 GMT", "version": "v2" } ]
2022-09-27
[ [ "Panda", "Papia", "" ], [ "Ghosh", "Monojit", "" ], [ "Mishra", "Priya", "" ], [ "Mohanta", "Rukmani", "" ] ]
T2HK is an upcoming long-baseline experiment in Japan which will have two water Cherenkov detector tanks of 187 kt volume each at distance of 295 km from the source. An alternative project, T2HKK is also under consideration where one of the water tanks will be moved to Korea at a distance of 1100 km. The flux at 295 km...
hep-ph/9409250
Sangyong Jeon
Sangyong Jeon
Hydrodynamic Transport Coefficients in Relativistic Scalar Field Theory
116 pages. An error in printing the figures file is corrected. The bulk viscosity sections are corrected and entirely rewritten. 38 figures in post-script format. One style file is included
Phys.Rev. D52 (1995) 3591-3642
10.1103/PhysRevD.52.3591
UW/PT-94
hep-ph
null
Hydrodynamic transport coefficients may be evaluated from first principles in a weakly coupled scalar field theory at arbitrary temperature. In a theory with cubic and quartic interactions, the infinite class of diagrams which contribute to the leading weak coupling behavior are identified and summed. The resulting e...
[ { "created": "Thu, 8 Sep 1994 02:01:15 GMT", "version": "v1" }, { "created": "Wed, 26 Apr 1995 09:06:38 GMT", "version": "v2" }, { "created": "Thu, 27 Apr 1995 23:30:41 GMT", "version": "v3" } ]
2009-10-28
[ [ "Jeon", "Sangyong", "" ] ]
Hydrodynamic transport coefficients may be evaluated from first principles in a weakly coupled scalar field theory at arbitrary temperature. In a theory with cubic and quartic interactions, the infinite class of diagrams which contribute to the leading weak coupling behavior are identified and summed. The resulting exp...
2305.09338
Muhammad Al-Zafar Khan
Muhammad Al-Zafar Khan, Mervlyn Moodley, Francesco Petruccione
Soliton Solutions and Conservation Laws for a Self-interacting Scalar Field in \(\phi^{4}\) Theory
19 pages, 2 figures
null
null
null
hep-ph hep-th math-ph math.MP quant-ph
http://creativecommons.org/licenses/by/4.0/
We calculate soliton solutions to the scalar field equation of motion that arises for the 4th-order extended Lagrangian (\(\phi^{4}\) theory) in quantum field theory using the extended hyperbolic tangent and the sine-cosine methods. Using the former technique, ten complex soliton waves are obtained; we graphically re...
[ { "created": "Tue, 16 May 2023 10:33:55 GMT", "version": "v1" } ]
2023-05-17
[ [ "Khan", "Muhammad Al-Zafar", "" ], [ "Moodley", "Mervlyn", "" ], [ "Petruccione", "Francesco", "" ] ]
We calculate soliton solutions to the scalar field equation of motion that arises for the 4th-order extended Lagrangian (\(\phi^{4}\) theory) in quantum field theory using the extended hyperbolic tangent and the sine-cosine methods. Using the former technique, ten complex soliton waves are obtained; we graphically repr...
hep-ph/9406328
null
Dae-Gyu Lee and R. N. Mohapatra
Automatically R-Conserving SUSY SO(10) Models and Mixed Light Higgs Doublets
UMD-PP-94-166 (some minor misprints corrected; Latex file; one figure available on request )
Phys.Rev. D51 (1995) 1353-1361
10.1103/PhysRevD.51.1353
null
hep-ph
null
In automatic R-parity conserving SO(10) models, the simplest way to accomodate realistic fermion masses is to demand that that the light Higgs doublets be linear combinations of the {10} and {126}-bar grand unified Higgs representations. We study the realization of this mixed light Higgs property consistent with doub...
[ { "created": "Thu, 16 Jun 1994 20:33:16 GMT", "version": "v1" }, { "created": "Fri, 17 Jun 1994 19:03:47 GMT", "version": "v2" }, { "created": "Fri, 24 Jun 1994 17:58:56 GMT", "version": "v3" } ]
2009-10-28
[ [ "Lee", "Dae-Gyu", "" ], [ "Mohapatra", "R. N.", "" ] ]
In automatic R-parity conserving SO(10) models, the simplest way to accomodate realistic fermion masses is to demand that that the light Higgs doublets be linear combinations of the {10} and {126}-bar grand unified Higgs representations. We study the realization of this mixed light Higgs property consistent with double...
hep-ph/0305051
Erik Bartos
E. Bartos, S. Dubnicka, A. Z. Dubnickova, E.A.Kuraev, E.Zemlyanaya
Is there any room for new physics in the muon g-2 problem?
Contribution on International Conference Hadron Structure '02, September 23.-27., 2002, Herlany, Slovakia
null
null
null
hep-ph
null
Is there any room for new physics in the muon g-2 problem?
[ { "created": "Mon, 5 May 2003 22:43:16 GMT", "version": "v1" } ]
2007-05-23
[ [ "Bartos", "E.", "" ], [ "Dubnicka", "S.", "" ], [ "Dubnickova", "A. Z.", "" ], [ "Kuraev", "E. A.", "" ], [ "Zemlyanaya", "E.", "" ] ]
Is there any room for new physics in the muon g-2 problem?
hep-ph/0202177
Tomislav Prokopec
Kimmo Kainulainen, Tomislav Prokopec, Michael G. Schmidt and Steffen Weinstock
Semiclassical force for electroweak baryogenesis: three-dimensional derivation
19 pages
Phys.Rev.D66:043502,2002
10.1103/PhysRevD.66.043502
CERN-TH/2002-011, HD-THEP-02-7, NORDITA 2002-5 HE
hep-ph
null
We derive a semiclassical transport equation for fermions propagating in the presence of a CP-violating planar bubble wall at a first order electroweak phase transition. Starting from the Kadanoff-Baym (KB) equation for the two-point (Wightman) function we perform an expansion in gradients, or equivalently in the Pla...
[ { "created": "Tue, 19 Feb 2002 12:34:16 GMT", "version": "v1" } ]
2014-11-17
[ [ "Kainulainen", "Kimmo", "" ], [ "Prokopec", "Tomislav", "" ], [ "Schmidt", "Michael G.", "" ], [ "Weinstock", "Steffen", "" ] ]
We derive a semiclassical transport equation for fermions propagating in the presence of a CP-violating planar bubble wall at a first order electroweak phase transition. Starting from the Kadanoff-Baym (KB) equation for the two-point (Wightman) function we perform an expansion in gradients, or equivalently in the Planc...
1203.5153
John F. Donoghue
Ufuk Aydemir, Mohamed M. Anber and John F. Donoghue
Self-healing of unitarity in effective field theories and the onset of new physics
11 pages, 5 figures, typos corrected, reference added
null
10.1103/PhysRevD.86.014025
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In effective field theories it is common to identify the onset of new physics with the violation of tree-level unitarity. However, we show that this is parametrically incorrect in the case of chiral perturbation theory, and is probably theoretically incorrect in general. In the chiral theory, we explore perturbative ...
[ { "created": "Fri, 23 Mar 2012 01:52:13 GMT", "version": "v1" }, { "created": "Tue, 15 May 2012 13:18:24 GMT", "version": "v2" } ]
2013-05-30
[ [ "Aydemir", "Ufuk", "" ], [ "Anber", "Mohamed M.", "" ], [ "Donoghue", "John F.", "" ] ]
In effective field theories it is common to identify the onset of new physics with the violation of tree-level unitarity. However, we show that this is parametrically incorrect in the case of chiral perturbation theory, and is probably theoretically incorrect in general. In the chiral theory, we explore perturbative un...
1308.0575
J. G. Ferreira Jr
J. G. Ferreira Jr., C. A. de S. Pires, P. S. Rodrigues da Silva, A. Sampieri
The Higgs sector of the SUSY reduced 3-3-1 model
18 pages, 5 figures, new references added and figures resolution improved
Phys. Rev. D 88, 105013 (2013)
10.1103/PhysRevD.88.105013
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A supersymmetric version of the recently proposed reduced minimal 3-3-1 model is considered and its Higgs sector is investigated. We focus on the mass spectrum of the lightest scalars of the model. We show that Higgs mass of 125 GeV requires substantial radiative corrections. However, stops may develop small mixing a...
[ { "created": "Fri, 2 Aug 2013 18:31:49 GMT", "version": "v1" }, { "created": "Mon, 12 Aug 2013 16:38:25 GMT", "version": "v2" } ]
2013-11-14
[ [ "Ferreira", "J. G.", "Jr." ], [ "Pires", "C. A. de S.", "" ], [ "da Silva", "P. S. Rodrigues", "" ], [ "Sampieri", "A.", "" ] ]
A supersymmetric version of the recently proposed reduced minimal 3-3-1 model is considered and its Higgs sector is investigated. We focus on the mass spectrum of the lightest scalars of the model. We show that Higgs mass of 125 GeV requires substantial radiative corrections. However, stops may develop small mixing and...
1804.02886
Christian Carimalo
Christian Carimalo
Spinor Calculus in Particle Physics
208 pages, in French, 24 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Methods of spinor calculus in particle physics are described in this series of four chapters written in french. A special emphasis is made on the well-known helicity-coupling scheme which is the guiding thread of all these methods. Numerous explicit formulas are given for projectors onto two-particles helicity states...
[ { "created": "Mon, 9 Apr 2018 09:50:58 GMT", "version": "v1" } ]
2018-04-10
[ [ "Carimalo", "Christian", "" ] ]
Methods of spinor calculus in particle physics are described in this series of four chapters written in french. A special emphasis is made on the well-known helicity-coupling scheme which is the guiding thread of all these methods. Numerous explicit formulas are given for projectors onto two-particles helicity states a...
hep-ph/9812264
Csaba Boros
A.W. Thomas and C. Boros
Pion Exchange and the H1 Forward Spectrometer Data
title changed, new references added
Eur.Phys.J.C9:267-269,1999
10.1007/s100520050530
ADP-98-79/T346
hep-ph hep-ex
null
We point out that the $\Delta\pi$ component of the nucleon wave function is vital to the interpretation of the recent H1 data for leading baryon production. While the $n/p$ ratio is equal to two with the $N\pi$ component alone, the inclusion of the $\Delta\pi$ component brings this ratio very near to unity, as observ...
[ { "created": "Mon, 7 Dec 1998 00:44:57 GMT", "version": "v1" }, { "created": "Tue, 2 Mar 1999 05:40:11 GMT", "version": "v2" } ]
2010-02-17
[ [ "Thomas", "A. W.", "" ], [ "Boros", "C.", "" ] ]
We point out that the $\Delta\pi$ component of the nucleon wave function is vital to the interpretation of the recent H1 data for leading baryon production. While the $n/p$ ratio is equal to two with the $N\pi$ component alone, the inclusion of the $\Delta\pi$ component brings this ratio very near to unity, as observed...
1002.3982
Sergei Chekanov V.
S.Chekanov, J.Proudfoot
Searches for TeV-scale particles at the LHC using jet shapes
14 pages, 6 figures
Phys.Rev.D81:114038,2010
10.1103/PhysRevD.81.114038
ANL-HEP-PR-10-2
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
New particles at the TeV scale can decay hadronically with strongly collimated jets, thus the standard reconstruction methods based on invariant-masses of well-separated jets can fail. We discuss how to identify such particles in pp collisions at the LHC using jet shapes which help to reduce the contribution of QCD-i...
[ { "created": "Sun, 21 Feb 2010 18:00:02 GMT", "version": "v1" }, { "created": "Tue, 23 Feb 2010 22:15:17 GMT", "version": "v2" }, { "created": "Fri, 16 Apr 2010 15:22:32 GMT", "version": "v3" }, { "created": "Wed, 2 Jun 2010 19:21:19 GMT", "version": "v4" } ]
2014-11-20
[ [ "Chekanov", "S.", "" ], [ "Proudfoot", "J.", "" ] ]
New particles at the TeV scale can decay hadronically with strongly collimated jets, thus the standard reconstruction methods based on invariant-masses of well-separated jets can fail. We discuss how to identify such particles in pp collisions at the LHC using jet shapes which help to reduce the contribution of QCD-ind...
1106.5016
Renato Fonseca
Renato M. Fonseca
Calculating the renormalisation group equations of a SUSY model with Susyno
Describes version 1.1 of the program (matches published version). The program's webpage is in http://web.ist.utl.pt/renato.fonseca/susyno.html
null
10.1016/j.cpc.2012.05.017
CFTP/11-011
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Susyno is a Mathematica package dedicated to the computation of the 2-loop renormalisation group equations of a supersymmetric model based on any gauge group (the only exception being multiple U(1) groups) and for any field content.
[ { "created": "Fri, 24 Jun 2011 17:07:12 GMT", "version": "v1" }, { "created": "Wed, 6 Jun 2012 16:48:49 GMT", "version": "v2" } ]
2012-06-07
[ [ "Fonseca", "Renato M.", "" ] ]
Susyno is a Mathematica package dedicated to the computation of the 2-loop renormalisation group equations of a supersymmetric model based on any gauge group (the only exception being multiple U(1) groups) and for any field content.
0902.3322
Gi-Chol Cho
Gi-Chol Cho and Yoshimi Kanehata
Kaluza-Klein gluon and b-jet forward-backward asymmetry
5 pages, 4 figures. Version to appear in Phys.Lett.B
Phys.Lett.B694:134-137,2010
10.1016/j.physletb.2010.09.057
OCHA-PP-300
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The forward-backward asymmetry of $b$-quark jets on the $Z$-pole measured at LEP/SLD experiments shows us -2.8-$\sigma$ deviation from the Standard Model (SM) prediction. We examine a possibility of Kaluza-Klein (KK) gluon to explain the $\afbb$ data in a scenario based on the warped extra dimension model by Randall ...
[ { "created": "Thu, 19 Feb 2009 08:30:39 GMT", "version": "v1" }, { "created": "Wed, 3 Mar 2010 08:02:44 GMT", "version": "v2" }, { "created": "Sat, 11 Sep 2010 23:14:10 GMT", "version": "v3" } ]
2014-11-18
[ [ "Cho", "Gi-Chol", "" ], [ "Kanehata", "Yoshimi", "" ] ]
The forward-backward asymmetry of $b$-quark jets on the $Z$-pole measured at LEP/SLD experiments shows us -2.8-$\sigma$ deviation from the Standard Model (SM) prediction. We examine a possibility of Kaluza-Klein (KK) gluon to explain the $\afbb$ data in a scenario based on the warped extra dimension model by Randall an...
1806.05970
Alan D. Martin
V.A. Khoze, A.D. Martin and M.G. Ryskin
Elastic and diffractive scattering at the LHC
17 pages, 4 figures, version published in Phys. Lett. B
null
10.1016/j.physletb.2018.07.054
IPPP/18/42
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Inspired by the new TOTEM data on elastic $pp$ scattering at 13 TeV, we study the possibility to describe all the diffractive collider data ($\sigma_{\rm tot}, d\sigma_{\rm el}/dt$, $\rho\equiv$Re$A$/Im$A$, \sd) in a wide interval of energy (0.0625 to 13 TeV) in the framework of a two-channel eikonal model. We show t...
[ { "created": "Fri, 15 Jun 2018 13:52:49 GMT", "version": "v1" }, { "created": "Fri, 10 Aug 2018 09:20:06 GMT", "version": "v2" } ]
2018-10-17
[ [ "Khoze", "V. A.", "" ], [ "Martin", "A. D.", "" ], [ "Ryskin", "M. G.", "" ] ]
Inspired by the new TOTEM data on elastic $pp$ scattering at 13 TeV, we study the possibility to describe all the diffractive collider data ($\sigma_{\rm tot}, d\sigma_{\rm el}/dt$, $\rho\equiv$Re$A$/Im$A$, \sd) in a wide interval of energy (0.0625 to 13 TeV) in the framework of a two-channel eikonal model. We show tha...
0910.5517
Kenji Kadota
Kenji Kadota and Jing Shao
Enhanced Tau Lepton Signatures at LHC in Constrained Supersymmetric Seesaw
15 pages, 3 figures, references added
Phys.Rev.D80:115004,2009
10.1103/PhysRevD.80.115004
MCTP-09-50
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the possible enhancement of the tau lepton events at LHC when the left-handed stau doublet becomes light (which can be even lighter than the right-handed stau). This is illustrated in the constrained supersymmetric seesaw model where the slepton doublet mass is suppressed by the effects of a large neutrino...
[ { "created": "Wed, 28 Oct 2009 23:04:11 GMT", "version": "v1" }, { "created": "Tue, 8 Dec 2009 16:00:02 GMT", "version": "v2" } ]
2009-12-30
[ [ "Kadota", "Kenji", "" ], [ "Shao", "Jing", "" ] ]
We discuss the possible enhancement of the tau lepton events at LHC when the left-handed stau doublet becomes light (which can be even lighter than the right-handed stau). This is illustrated in the constrained supersymmetric seesaw model where the slepton doublet mass is suppressed by the effects of a large neutrino Y...
hep-ph/0310079
Urs Wiedemann A.
Carlos A. Salgado, Urs Achim Wiedemann
Medium Modification of Jet Shapes and Jet Multiplicities
4 pages, Latex, 3 eps figures. version2: error in eq. (6) corrected, Fig. 2 changed accordingly, conclusions unchanged
Phys.Rev.Lett. 93 (2004) 042301
10.1103/PhysRevLett.93.042301
CERN-TH/2003-244
hep-ph
null
Medium-induced parton energy loss is widely considered to underly the suppression of high-pt leading hadron spectra in 200 GeV/A Au+Au collisions at RHIC. Its description implies a characteristic kt-broadening of the subleading hadronic fragments associated to the hard parton. However, this latter effect is more diff...
[ { "created": "Tue, 7 Oct 2003 18:18:34 GMT", "version": "v1" }, { "created": "Fri, 24 Oct 2003 14:03:48 GMT", "version": "v2" } ]
2009-11-10
[ [ "Salgado", "Carlos A.", "" ], [ "Wiedemann", "Urs Achim", "" ] ]
Medium-induced parton energy loss is widely considered to underly the suppression of high-pt leading hadron spectra in 200 GeV/A Au+Au collisions at RHIC. Its description implies a characteristic kt-broadening of the subleading hadronic fragments associated to the hard parton. However, this latter effect is more diffic...
1402.3298
James Barnard Dr
James Barnard, Ben Farmer
A simple technique for combining simplified models and its application to direct stop production
25 pages, data included in source. V3: new content added, version accepted for publication
null
10.1007/JHEP06(2014)132
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The results of many LHC searches for supersymmetric particles are interpreted using simplified models, in which one fixes the masses and couplings of most sparticles then scans over a few remaining masses of interest. We present a new technique for combining multiple simplified models (that requires no additional sim...
[ { "created": "Thu, 13 Feb 2014 21:00:17 GMT", "version": "v1" }, { "created": "Wed, 5 Mar 2014 02:24:22 GMT", "version": "v2" }, { "created": "Tue, 27 May 2014 00:35:04 GMT", "version": "v3" } ]
2015-06-18
[ [ "Barnard", "James", "" ], [ "Farmer", "Ben", "" ] ]
The results of many LHC searches for supersymmetric particles are interpreted using simplified models, in which one fixes the masses and couplings of most sparticles then scans over a few remaining masses of interest. We present a new technique for combining multiple simplified models (that requires no additional simul...
2002.02935
Tanmay Kumar Poddar
Tanmay Kumar Poddar, Subhendra Mohanty, Soumya Jana
Constraints on long range force from perihelion precession of planets in a gauged $L_e-L_{\mu,\tau}$ scenario
19 pages, 3 figures, 2 tables
null
10.1140/epjc/s10052-021-09078-9
null
hep-ph astro-ph.EP astro-ph.HE gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The standard model particles can be gauged in an anomaly free way by three possible gauge symmetries namely ${L_e-L_\mu}$, ${L_e-L_\tau}$, and ${L_\mu-L_\tau}$. Of these, ${L_e-L_\mu}$ and ${L_e-L_\tau}$ forces can mediate between the Sun and the planets and change the perihelion precession of planetary orbits. It is...
[ { "created": "Wed, 5 Feb 2020 09:20:38 GMT", "version": "v1" }, { "created": "Mon, 27 Jul 2020 07:09:47 GMT", "version": "v2" } ]
2021-04-21
[ [ "Poddar", "Tanmay Kumar", "" ], [ "Mohanty", "Subhendra", "" ], [ "Jana", "Soumya", "" ] ]
The standard model particles can be gauged in an anomaly free way by three possible gauge symmetries namely ${L_e-L_\mu}$, ${L_e-L_\tau}$, and ${L_\mu-L_\tau}$. Of these, ${L_e-L_\mu}$ and ${L_e-L_\tau}$ forces can mediate between the Sun and the planets and change the perihelion precession of planetary orbits. It is w...
hep-ph/0605170
Ulrich Haisch
Ulrich Haisch
Theoretical Status of K->pinunubar Decays
5 pages, 2 figures, talk given at the XLIst Rencontres de Moriond QCD and High Energy Hadronic Interactions, La Thuile, Aosta Valley, Italy, March 18--25, 2006
null
null
null
hep-ph
null
We present a concise review of the theoretical status of rare K->pinunubar decays in and beyond the standard model. Particular attention is thereby devoted to the recent calculation of the next-to-next-to-leading order corrections to the charm quark contribution of K^+->pi^+nunubar which removes the last relevant the...
[ { "created": "Mon, 15 May 2006 13:58:57 GMT", "version": "v1" } ]
2007-05-23
[ [ "Haisch", "Ulrich", "" ] ]
We present a concise review of the theoretical status of rare K->pinunubar decays in and beyond the standard model. Particular attention is thereby devoted to the recent calculation of the next-to-next-to-leading order corrections to the charm quark contribution of K^+->pi^+nunubar which removes the last relevant theor...
1310.0222
Martin Kr\v{s}\v{s}\'ak
Martin Krssak
Energy Momentum Tensor Correlators in Improved Holographic QCD
107 pages, 14 figures, PhD thesis
null
null
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this thesis, we study the physics of the quark gluon plasma (QGP) using holographic methods borrowed from string theory. We start our discussion by motivating the use of such machinery, explaining how recent experimental results from the LHC and RHIC colliders suggests that the created QGP should be described as a...
[ { "created": "Tue, 1 Oct 2013 10:16:24 GMT", "version": "v1" } ]
2013-10-02
[ [ "Krssak", "Martin", "" ] ]
In this thesis, we study the physics of the quark gluon plasma (QGP) using holographic methods borrowed from string theory. We start our discussion by motivating the use of such machinery, explaining how recent experimental results from the LHC and RHIC colliders suggests that the created QGP should be described as a s...
2212.00978
Roman Nikolaevich Lee
Petr A. Krachkov and Roman N. Lee
Charge asymmetry in the spectra of bremsstrahlung and pair production
14 pages, 8 figures
null
10.1007/JHEP02(2023)033
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the first Coulomb correction to the spectra of two processes: the electron bremsstrahlung and electron-positron photoproduction in the Coulomb field. We show that, in contrast to the results obtained in the Born approximation and in the high-energy limit, the obtained corrections for these two process ar...
[ { "created": "Fri, 2 Dec 2022 05:15:15 GMT", "version": "v1" } ]
2023-02-22
[ [ "Krachkov", "Petr A.", "" ], [ "Lee", "Roman N.", "" ] ]
We calculate the first Coulomb correction to the spectra of two processes: the electron bremsstrahlung and electron-positron photoproduction in the Coulomb field. We show that, in contrast to the results obtained in the Born approximation and in the high-energy limit, the obtained corrections for these two process are ...
2001.03677
Sally Robertson
Spencer R. Klein, Sally A. Robertson, Ramona Vogt
Nuclear effects in high-energy neutrino interactions
null
Phys. Rev. C 102, 015808 (2020)
10.1103/PhysRevC.102.015808
null
hep-ph astro-ph.HE nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Neutrino telescopes like IceCube, KM3NeT and Baikal-GVD offer physicists the opportunity to study neutrinos with energies far beyond the reach of terrestrial accelerators. These neutrinos are used to study high-energy neutrino interactions and to probe the Earth through absorption tomography. Current studies of TeV n...
[ { "created": "Fri, 10 Jan 2020 22:08:22 GMT", "version": "v1" }, { "created": "Thu, 5 Mar 2020 00:36:28 GMT", "version": "v2" } ]
2020-08-05
[ [ "Klein", "Spencer R.", "" ], [ "Robertson", "Sally A.", "" ], [ "Vogt", "Ramona", "" ] ]
Neutrino telescopes like IceCube, KM3NeT and Baikal-GVD offer physicists the opportunity to study neutrinos with energies far beyond the reach of terrestrial accelerators. These neutrinos are used to study high-energy neutrino interactions and to probe the Earth through absorption tomography. Current studies of TeV neu...
1606.06686
Hiroyuki Ishida
Takehiko Asaka, Shintaro Eijima, and Hiroyuki Ishida
On neutrinoless double beta decay in the $\nu$MSM
10 pages, 6 figures, v2: published version to appear in Physics Letters B
null
10.1016/j.physletb.2016.09.044
SU-HET-05-2016
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the neutrinoless double beta ($0\nu \beta \beta$) decay in the so-called $\nu$MSM, in which three right-handed neutrinos with masses below the electroweak scale are additionally introduced to the Standard Model. In this model there appear three heavy neutral leptons $N_1$, $N_2$, and $N_3$ corresponding t...
[ { "created": "Tue, 21 Jun 2016 18:04:09 GMT", "version": "v1" }, { "created": "Tue, 15 Nov 2016 05:58:33 GMT", "version": "v2" } ]
2016-11-16
[ [ "Asaka", "Takehiko", "" ], [ "Eijima", "Shintaro", "" ], [ "Ishida", "Hiroyuki", "" ] ]
We consider the neutrinoless double beta ($0\nu \beta \beta$) decay in the so-called $\nu$MSM, in which three right-handed neutrinos with masses below the electroweak scale are additionally introduced to the Standard Model. In this model there appear three heavy neutral leptons $N_1$, $N_2$, and $N_3$ corresponding to ...
hep-ph/9905271
null
F. Gangemi, G. Montagna, M. Moretti, O. Nicrosini and F. Piccinini
Top-quark physics in six-quark final states at the Next Linear Collider
LaTeX (using elsart.sty), 17 pages, 9 figures included
Nucl.Phys. B559 (1999) 3-16
10.1016/S0550-3213(99)00450-2
CERN/TH 99-125, FNT/T 99/08
hep-ph
null
The processes of six-quark production with one $b\bar b$ pair are studied by means of a complete tree-level electroweak calculation. The top-quark signal is examined: the importance of electroweak backgrounds, of the order of 10% above the $t\bar t$ threshold and of about 30% of the purely electroweak signal at thres...
[ { "created": "Fri, 7 May 1999 16:00:30 GMT", "version": "v1" } ]
2009-10-31
[ [ "Gangemi", "F.", "" ], [ "Montagna", "G.", "" ], [ "Moretti", "M.", "" ], [ "Nicrosini", "O.", "" ], [ "Piccinini", "F.", "" ] ]
The processes of six-quark production with one $b\bar b$ pair are studied by means of a complete tree-level electroweak calculation. The top-quark signal is examined: the importance of electroweak backgrounds, of the order of 10% above the $t\bar t$ threshold and of about 30% of the purely electroweak signal at thresho...
hep-ph/0102061
Erhan Iltan
E. O. Iltan (ODTU, Ankara)
B --> K l^+ l^- decay in the general two Higgs doublet model
13 pages, 1 Table, 8 figures
Eur.Phys.J.direct C4 (2002) 8
null
null
hep-ph
null
We study the branching ratio, CP-violating asymmetry, forward-backward asymmetry and the CP-violating asymmetry in the forward-backward asymmetry for the exclusive decay B--> K l^+ l^-$ in the two Higgs doublet model with tree level flavor changing neutral currents (model III). We analyse the dependencies of these qu...
[ { "created": "Tue, 6 Feb 2001 12:07:45 GMT", "version": "v1" }, { "created": "Fri, 31 May 2002 19:46:37 GMT", "version": "v2" } ]
2007-05-23
[ [ "Iltan", "E. O.", "", "ODTU, Ankara" ] ]
We study the branching ratio, CP-violating asymmetry, forward-backward asymmetry and the CP-violating asymmetry in the forward-backward asymmetry for the exclusive decay B--> K l^+ l^-$ in the two Higgs doublet model with tree level flavor changing neutral currents (model III). We analyse the dependencies of these quan...
2005.00204
Xin-Li Sheng
Xin-Li Sheng, Qun Wang, Xu-Guang Huang
Kinetic theory with spin: From massive to massless fermions
12 pages, no figure
Phys. Rev. D 102, 025019 (2020)
10.1103/PhysRevD.102.025019
null
hep-ph hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We find that the recently developed kinetic theories with spin for massive and massless fermions are smoothly connected. By introducing a reference-frame vector, we decompose the dipole-moment tensor into electric and magnetic dipole moments. We show that the axial-vector component of the Wigner function contains a c...
[ { "created": "Fri, 1 May 2020 04:00:05 GMT", "version": "v1" } ]
2020-07-29
[ [ "Sheng", "Xin-Li", "" ], [ "Wang", "Qun", "" ], [ "Huang", "Xu-Guang", "" ] ]
We find that the recently developed kinetic theories with spin for massive and massless fermions are smoothly connected. By introducing a reference-frame vector, we decompose the dipole-moment tensor into electric and magnetic dipole moments. We show that the axial-vector component of the Wigner function contains a con...
hep-ph/0406112
Brigitte Hiller
A.A. Osipov, H. Hansen, and B. Hiller
Long distance expansion for the NJL model with SU(3) and U_A(1) breaking
LaTeX, 30 pages, added discussions and references, title change, version to appear in Nucl. Phys. A
Nucl.Phys. A745 (2004) 81-103
10.1016/j.nuclphysa.2004.08.022
null
hep-ph
null
This work is a follow up of recent investigations, where we study the implications of a generalized heat kernel expansion, constructed to incorporate non-perturbatively the effects of a non-commutative quark mass matrix in a fully covariant way at each order of the expansion. As underlying Lagrangian we use the Nambu...
[ { "created": "Wed, 9 Jun 2004 17:11:51 GMT", "version": "v1" }, { "created": "Mon, 30 Aug 2004 14:00:09 GMT", "version": "v2" } ]
2009-11-10
[ [ "Osipov", "A. A.", "" ], [ "Hansen", "H.", "" ], [ "Hiller", "B.", "" ] ]
This work is a follow up of recent investigations, where we study the implications of a generalized heat kernel expansion, constructed to incorporate non-perturbatively the effects of a non-commutative quark mass matrix in a fully covariant way at each order of the expansion. As underlying Lagrangian we use the Nambu -...
1301.4214
German Valencia
German Valencia
Probing new physics with tau-leptons at the LHC
Prepared for TAU2012
null
10.1016/j.nuclphysbps.2014.09.043
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss new physics that can show up in the $\tau^+\tau^-$ production process at the LHC but not in the dimuon or the dielectron channels. We consider three different generic possibilities: a new resonance in the Drell-Yan process in the form of a non-universal $Z^\prime$; a new non-resonant contribution to $q\bar...
[ { "created": "Thu, 17 Jan 2013 20:49:12 GMT", "version": "v1" } ]
2015-06-12
[ [ "Valencia", "German", "" ] ]
We discuss new physics that can show up in the $\tau^+\tau^-$ production process at the LHC but not in the dimuon or the dielectron channels. We consider three different generic possibilities: a new resonance in the Drell-Yan process in the form of a non-universal $Z^\prime$; a new non-resonant contribution to $q\bar{q...
hep-ph/9308329
Benjamin Grinstein
Alon E. Faraggi and Benjamin Grinstein
Light Threshold Effects in Supersymmetric Grand Unified Theories
33 pages (13 revised figures available by anonymous ftp), two new sections, some improvements, SSCL--Preprint--496 and WIS--93/61/JULY--PH
Nucl.Phys.B422:3-36,1994
10.1016/0550-3213(94)00101-4
null
hep-ph
null
Supersymmetric Grand Unified Theories have a rich spectrum of particles barely heavier than the intermediate vector bosons. As their non-supersymmetric counterparts, they lead to many relations among low energy observables. But the precise form of the predictions is modified by the extended spectrum. If the masses of...
[ { "created": "Tue, 24 Aug 1993 16:29:10 GMT", "version": "v1" }, { "created": "Thu, 2 Dec 1993 19:54:53 GMT", "version": "v2" }, { "created": "Tue, 14 Dec 1993 00:42:09 GMT", "version": "v3" } ]
2011-03-10
[ [ "Faraggi", "Alon E.", "" ], [ "Grinstein", "Benjamin", "" ] ]
Supersymmetric Grand Unified Theories have a rich spectrum of particles barely heavier than the intermediate vector bosons. As their non-supersymmetric counterparts, they lead to many relations among low energy observables. But the precise form of the predictions is modified by the extended spectrum. If the masses of t...
1309.0721
Wim de Boer
W. de Boer (for the CMS Collaboration, IEKP, Karlsruhe Institute of Technology, Germany)
The Discovery of the Higgs Boson with the CMS Detector and its Implications for Supersymmetry and Cosmology
26 pages, Conference Proceedings Time and Matter (TAM2013), Venice, Feb. 2013
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The discovery of the long awaited Higgs boson is described using data from the CMS detector at the LHC. In the SM the masses of fermions and the heavy gauge bosons are generated by the interactions with the Higgs field, so all couplings are related to the observed masses. Indeed, all observed couplings are consistent...
[ { "created": "Tue, 3 Sep 2013 15:23:33 GMT", "version": "v1" } ]
2013-09-04
[ [ "de Boer", "W.", "", "for the CMS Collaboration, IEKP, Karlsruhe Institute of\n Technology, Germany" ] ]
The discovery of the long awaited Higgs boson is described using data from the CMS detector at the LHC. In the SM the masses of fermions and the heavy gauge bosons are generated by the interactions with the Higgs field, so all couplings are related to the observed masses. Indeed, all observed couplings are consistent w...
2203.12871
Ijaz Ahmed
Ijaz Ahmed, Anwar Zada, Muhammad Waqas, M. U. Ashraf
Application of deep learning in top pair and single top quark production at the LHC
21 pages, 4 tables, 19 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We demonstrate the performance of a very efficient tagger applies on hadronically decaying top quark pairs as signal based on deep neural network algorithms and compares with the QCD multi-jet background events. A significant enhancement of performance in boosted top quark events is observed with our limited computin...
[ { "created": "Thu, 24 Mar 2022 06:26:10 GMT", "version": "v1" } ]
2022-03-25
[ [ "Ahmed", "Ijaz", "" ], [ "Zada", "Anwar", "" ], [ "Waqas", "Muhammad", "" ], [ "Ashraf", "M. U.", "" ] ]
We demonstrate the performance of a very efficient tagger applies on hadronically decaying top quark pairs as signal based on deep neural network algorithms and compares with the QCD multi-jet background events. A significant enhancement of performance in boosted top quark events is observed with our limited computing ...
1106.0340
Arie Bodek
A. Bodek, H. S. Budd and E. Christy
Neutrino Quasielastic Scattering on Nuclear Targets: Parametrizing Transverse Enhancement (Meson Exchange Currents)
Revised Version- July 21, 2011: 17 pages, 20 Figures. To be published in Eur. Phys. J. C
Eur. Phys. J. C 71 (2011) 1726
10.1140/epjc/s10052-011-1726-y
null
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a parametrization of the observed enhancement in the transverse electron quasielastic (QE) response function for nucleons bound in carbon as a function of the square of the four momentum transfer ($Q^2$) in terms of a correction to the magnetic form factors of bound nucleons. The parametrization should als...
[ { "created": "Wed, 1 Jun 2011 23:44:54 GMT", "version": "v1" }, { "created": "Sun, 3 Jul 2011 14:43:21 GMT", "version": "v2" }, { "created": "Thu, 21 Jul 2011 19:50:56 GMT", "version": "v3" } ]
2011-09-07
[ [ "Bodek", "A.", "" ], [ "Budd", "H. S.", "" ], [ "Christy", "E.", "" ] ]
We present a parametrization of the observed enhancement in the transverse electron quasielastic (QE) response function for nucleons bound in carbon as a function of the square of the four momentum transfer ($Q^2$) in terms of a correction to the magnetic form factors of bound nucleons. The parametrization should also ...
1610.03711
Jarkko Peuron
Tuomas Lappi, Jarkko Peuron
Plasmon mass scale in classical nonequilibrium gauge theory
9 pages, 10 figures, to appear in Phys. Rev. D
Phys. Rev. D 95, 014025 (2017)
10.1103/PhysRevD.95.014025
null
hep-ph hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Classical lattice Yang-Mills calculations provide a good way to understand different nonequilibrium phenomena in nonperturbatively overoccupied systems. Above the Debye scale the classical theory can be matched smoothly to kinetic theory. The aim of this work is to study the limits of this quasiparticle picture by de...
[ { "created": "Wed, 12 Oct 2016 13:50:17 GMT", "version": "v1" }, { "created": "Wed, 25 Jan 2017 13:13:08 GMT", "version": "v2" } ]
2017-02-01
[ [ "Lappi", "Tuomas", "" ], [ "Peuron", "Jarkko", "" ] ]
Classical lattice Yang-Mills calculations provide a good way to understand different nonequilibrium phenomena in nonperturbatively overoccupied systems. Above the Debye scale the classical theory can be matched smoothly to kinetic theory. The aim of this work is to study the limits of this quasiparticle picture by dete...
1107.1269
D.N. Triantafyllopoulos
D.N. Triantafyllopoulos
Forward and Mueller-Navelet Jets
6 pages, 4 figures. To appear in the proceedings of Excited QCD 2011, 20-25 Feb 2011, Les Houches, France
Acta Physica Polonica B Proceedings Supplement vol. 4 (2011) page 549
10.5506/APhysPolBSupp.4.549
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the production of forward jets in high energy processes where one probes a dense hadronic wavefunction. In particular, and as a signature of parton saturation, we discuss the possibility of a strong momentum decorrelation in Mueller-Navelet jets which leads to a geometric scaling behavior.
[ { "created": "Wed, 6 Jul 2011 22:11:54 GMT", "version": "v1" } ]
2011-10-24
[ [ "Triantafyllopoulos", "D. N.", "" ] ]
We discuss the production of forward jets in high energy processes where one probes a dense hadronic wavefunction. In particular, and as a signature of parton saturation, we discuss the possibility of a strong momentum decorrelation in Mueller-Navelet jets which leads to a geometric scaling behavior.
hep-ph/0006219
Victor Nikonov
V. A. Nikonov and J. Nyiri
Quark combinatorics for production ratios in hadronic Z^0 decays
5 pages, LaTeX, 8 EPS figures, epsfig.sty
null
null
null
hep-ph
null
Model independent verification of the quark combinatorics rules, which govern the ratios of the yields of secondaries, is presented for jet processes. Because of a large number of produced resonances in the hadron jets, a test of the quark combinatorics rules is hardly possible in the central region, x_{hadron} < 0.2...
[ { "created": "Mon, 19 Jun 2000 12:30:04 GMT", "version": "v1" } ]
2007-05-23
[ [ "Nikonov", "V. A.", "" ], [ "Nyiri", "J.", "" ] ]
Model independent verification of the quark combinatorics rules, which govern the ratios of the yields of secondaries, is presented for jet processes. Because of a large number of produced resonances in the hadron jets, a test of the quark combinatorics rules is hardly possible in the central region, x_{hadron} < 0.2. ...
2203.15452
Yong Tang
Qing-Yang Wang, Yong Tang, Yue-Liang Wu
Dark Matter Production in Weyl $R^2$ Inflation
26 pages, 5 figures
Phys. Rev. D 106, 023502, 2022
10.1103/PhysRevD.106.023502
null
hep-ph astro-ph.CO gr-qc
http://creativecommons.org/licenses/by/4.0/
Dark matter and inflation are two key elements to understand the origin of cosmic structures in modern cosmology, and yet their exact physical models remain largely uncertain. The Weyl scaling invariant theory of gravity may provide a feasible scheme to solve these two puzzles jointly, which contains a massive gauge ...
[ { "created": "Tue, 29 Mar 2022 11:51:24 GMT", "version": "v1" }, { "created": "Thu, 7 Jul 2022 02:50:03 GMT", "version": "v2" } ]
2022-07-08
[ [ "Wang", "Qing-Yang", "" ], [ "Tang", "Yong", "" ], [ "Wu", "Yue-Liang", "" ] ]
Dark matter and inflation are two key elements to understand the origin of cosmic structures in modern cosmology, and yet their exact physical models remain largely uncertain. The Weyl scaling invariant theory of gravity may provide a feasible scheme to solve these two puzzles jointly, which contains a massive gauge bo...
1311.5085
Max Zoller
M. F. Zoller
Beta-function for the Higgs self-interaction in the Standard Model at three-loop level
contribution to the proceedings of the European Physical Society Conference on High Energy Physics, 2013
PoS EPS-HEP2013 (2013) 322
null
TTP13-040, SFB/CPP-13-103
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The discovery of a Higgs particle has triggered numerous theoretical and experimental investigations concerning its production and decay rates and has led to interesting results concerning its interaction with fermions and gauge bosons. The self-interaction $\lambda$ of the Standard Model Higgs boson is particularly ...
[ { "created": "Wed, 20 Nov 2013 15:03:57 GMT", "version": "v1" } ]
2017-07-25
[ [ "Zoller", "M. F.", "" ] ]
The discovery of a Higgs particle has triggered numerous theoretical and experimental investigations concerning its production and decay rates and has led to interesting results concerning its interaction with fermions and gauge bosons. The self-interaction $\lambda$ of the Standard Model Higgs boson is particularly im...
hep-ph/9608421
M. Bisset
Mike Bisset, Dilip Kumar Ghosh and Sreerup Raychaudhuri
Combined Squark and Gluino Mass Bounds from LEP Data
13 page RevTeX file, 1 figure, uses epsf.sty; minor corrections made and references updated
null
null
TIFR/TH/96-05, BU-TH/96-4
hep-ph
null
Under the assumption of gaugino mass unification at a high scale, chargino and neutralino masses depend on the value of the gluino mass, which itself becomes a function of squark masses through self-energy corrections. We demonstrate that this leads to combined bounds on squark and gluino masses from the limits on ch...
[ { "created": "Fri, 23 Aug 1996 15:10:56 GMT", "version": "v1" }, { "created": "Fri, 30 Aug 1996 00:48:04 GMT", "version": "v2" } ]
2008-02-03
[ [ "Bisset", "Mike", "" ], [ "Ghosh", "Dilip Kumar", "" ], [ "Raychaudhuri", "Sreerup", "" ] ]
Under the assumption of gaugino mass unification at a high scale, chargino and neutralino masses depend on the value of the gluino mass, which itself becomes a function of squark masses through self-energy corrections. We demonstrate that this leads to combined bounds on squark and gluino masses from the limits on char...
hep-ph/0512106
Mikhail Gorshteyn
Mikhail Gorchtein
Doubly virtual Compton scattering and the beam normal spin asymmetry
13 pages, 2 figures, revtex, submitted to Phys. Rev. C; new version: two figures added, typos corrected
Phys.Rev.C73:035213,2006
10.1103/PhysRevC.73.035213
null
hep-ph nucl-th
null
We construct an invariant basis for Compton scattering with two virtual photons (VVCS). The basis tensors are chosen to be gauge invariant and orthogonal to each other. The properties of the corresponding 18 invariant amplitudes are studied in detail. We consider the special case of elastic VVCS with the virtualities...
[ { "created": "Thu, 8 Dec 2005 20:30:59 GMT", "version": "v1" }, { "created": "Fri, 16 Dec 2005 19:08:18 GMT", "version": "v2" }, { "created": "Tue, 17 Jan 2006 23:07:50 GMT", "version": "v3" } ]
2008-11-26
[ [ "Gorchtein", "Mikhail", "" ] ]
We construct an invariant basis for Compton scattering with two virtual photons (VVCS). The basis tensors are chosen to be gauge invariant and orthogonal to each other. The properties of the corresponding 18 invariant amplitudes are studied in detail. We consider the special case of elastic VVCS with the virtualities o...
2401.06716
Loris Del Grosso
Loris Del Grosso, Paolo Pani, Alfredo Urbano
Compact objects in and beyond the Standard Model from non-perturbative vacuum scalarization
12 pages, 6 figures. v2: matches version accepted in PRD
Phys. Rev. D 109, 095006 (2024)
10.1103/PhysRevD.109.095006
null
hep-ph astro-ph.CO gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider a theory in which a real scalar field is Yukawa-coupled to a fermion and has a potential with two non-degenerate vacua. If the coupling is sufficiently strong, a collection of N fermions deforms the true vacuum state, creating energetically-favored false-vacuum pockets in which fermions are trapped. We em...
[ { "created": "Fri, 12 Jan 2024 17:39:31 GMT", "version": "v1" }, { "created": "Tue, 7 May 2024 07:30:07 GMT", "version": "v2" } ]
2024-05-08
[ [ "Del Grosso", "Loris", "" ], [ "Pani", "Paolo", "" ], [ "Urbano", "Alfredo", "" ] ]
We consider a theory in which a real scalar field is Yukawa-coupled to a fermion and has a potential with two non-degenerate vacua. If the coupling is sufficiently strong, a collection of N fermions deforms the true vacuum state, creating energetically-favored false-vacuum pockets in which fermions are trapped. We embe...
hep-ph/9407350
Bashir "a."
A.Bashir and M.R.Pennington
Gauge independent Chiral Symmetry Breaking in Quenched QED
22 pages, DTP-94/48
Phys.Rev. D50 (1994) 7679-7689
10.1103/PhysRevD.50.7679
null
hep-ph
null
In quenched QED we construct a non-perturbative fermion-boson vertex that ensures the fermion propagator satisfies the Ward-Takahashi identity, is multiplicatively renormalizable, agrees with perturbation theory for weak couplings and has a critical coupling for dynamical mass generation that is strictly gauge indepe...
[ { "created": "Thu, 21 Jul 1994 12:55:07 GMT", "version": "v1" }, { "created": "Tue, 20 Sep 1994 14:26:49 GMT", "version": "v2" } ]
2009-10-28
[ [ "Bashir", "A.", "" ], [ "Pennington", "M. R.", "" ] ]
In quenched QED we construct a non-perturbative fermion-boson vertex that ensures the fermion propagator satisfies the Ward-Takahashi identity, is multiplicatively renormalizable, agrees with perturbation theory for weak couplings and has a critical coupling for dynamical mass generation that is strictly gauge independ...
1206.5720
Massimiliano Alvioli
M. Alvioli, H. Holopainen, K. J. Eskola, M. Strikman
Initial state anisotropies in ultrarelativistic heavy-ion collisions from the Monte Carlo Glauber model
Contribution to the Sixth International Conference on Quarks and Nuclear Physics (QNP12), April 16-20, 2012 Palaiseau (France)
PoS(QNP2012)172
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In hydrodynamicalmodeling of heavy-ion collisions the initial state spatial anisotropies translate into momentum anisotropies of the final state particle distributions. Thus, understanding the origin of the initial anisotropies and quantifying their uncertainties is important for the extraction of specific QCD matter...
[ { "created": "Mon, 25 Jun 2012 16:03:40 GMT", "version": "v1" } ]
2012-06-26
[ [ "Alvioli", "M.", "" ], [ "Holopainen", "H.", "" ], [ "Eskola", "K. J.", "" ], [ "Strikman", "M.", "" ] ]
In hydrodynamicalmodeling of heavy-ion collisions the initial state spatial anisotropies translate into momentum anisotropies of the final state particle distributions. Thus, understanding the origin of the initial anisotropies and quantifying their uncertainties is important for the extraction of specific QCD matter p...
hep-ph/0409002
Peter Arnold
Peter Arnold
Quark-Gluon Plasma Thermalization and Plasma Instabilities
10 pages, 7 figures
null
null
null
hep-ph
null
In this talk, I review the important role played by plasma instabilities in the thermalization of quark-gluon plasmas at very high energy. [Conference talk presented at Strong and Electroweak Mattter 2004, Helsinki, Finland, June 16--19.]
[ { "created": "Tue, 31 Aug 2004 20:15:49 GMT", "version": "v1" } ]
2007-05-23
[ [ "Arnold", "Peter", "" ] ]
In this talk, I review the important role played by plasma instabilities in the thermalization of quark-gluon plasmas at very high energy. [Conference talk presented at Strong and Electroweak Mattter 2004, Helsinki, Finland, June 16--19.]
2401.02082
Juhi Oudichhya
Juhi Oudichhya and Ajay Kumar Rai
Spectroscopic study of $D-$ meson in Regge phenomenology
9 pages, 4 figures
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
In last few years the experimental evidence of charmed mesons is increasing remarkably. In the present work we systematically studied the $D$ meson by employing Regge phenomenology. By assuming the existence of the quasilinear Regge trajectories, several relations between Regge slope, intercept, and meson masses have...
[ { "created": "Thu, 4 Jan 2024 06:14:26 GMT", "version": "v1" } ]
2024-01-05
[ [ "Oudichhya", "Juhi", "" ], [ "Rai", "Ajay Kumar", "" ] ]
In last few years the experimental evidence of charmed mesons is increasing remarkably. In the present work we systematically studied the $D$ meson by employing Regge phenomenology. By assuming the existence of the quasilinear Regge trajectories, several relations between Regge slope, intercept, and meson masses have b...
1811.03086
Bartosz Fornal
Bartosz Fornal, Benjamin Grinstein
Dark Side of the Neutron?
6 pages, 2 figures; Plenary talk presented at the International Workshop on Particle Physics at Neutron Sources 2018, Grenoble, France, May 24-26, 2018; based on: Phys. Rev. Lett. 120, 191801 (2018) [arXiv:1801.01124]; see also arXiv:1810.00862; to be published in EPJ Web of Conferences
null
null
null
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss our recently proposed interpretation of the discrepancy between the bottle and beam neutron lifetime experiments as a sign of a dark sector. The difference between the outcomes of the two types of measurements is explained by the existence of a neutron dark decay channel with a branching fraction 1%. Pheno...
[ { "created": "Wed, 7 Nov 2018 18:59:19 GMT", "version": "v1" } ]
2018-12-12
[ [ "Fornal", "Bartosz", "" ], [ "Grinstein", "Benjamin", "" ] ]
We discuss our recently proposed interpretation of the discrepancy between the bottle and beam neutron lifetime experiments as a sign of a dark sector. The difference between the outcomes of the two types of measurements is explained by the existence of a neutron dark decay channel with a branching fraction 1%. Phenome...
hep-ph/9605228
Grandou Thierry
Thierry Grandou
On the Light Cone Singularity of the Thermal Effective Expansion
18 pages
Phys.Lett. B367 (1996) 229-236
10.1016/0370-2693(95)01470-5
INLN 95/25
hep-ph
null
We consider a scalar massless quantum field model, at finite temperature $T$, both renormalizable and asymptotically free. Focussing on the singular structure of the effective perturbation theory about the light cone, several new insights are put forth, regarding the interplay between hard thermal loop resummation an...
[ { "created": "Mon, 6 May 1996 13:57:43 GMT", "version": "v1" } ]
2009-10-28
[ [ "Grandou", "Thierry", "" ] ]
We consider a scalar massless quantum field model, at finite temperature $T$, both renormalizable and asymptotically free. Focussing on the singular structure of the effective perturbation theory about the light cone, several new insights are put forth, regarding the interplay between hard thermal loop resummation and ...
1405.6639
Victor Ilisie
Victor Ilisie and Antonio Pich
Low-mass fermiophobic charged Higgs phenomenology in two-Higgs-doublet models
40 pages, 11 figures. Minor typos corrected
JHEP 1409 (2014) 089
10.1007/JHEP09(2014)089
FTUV/14-0526; IFIC/14-36
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
After the recent discovery of a Higgs-like boson, the possibility of an enlarged scalar sector arises as a natural question. Experimental searches for charged scalars have been already performed with negative results. We analyze the phenomenology associated with a fermiophobic charged Higgs (it does not couple to fer...
[ { "created": "Mon, 26 May 2014 16:59:43 GMT", "version": "v1" }, { "created": "Wed, 22 Oct 2014 16:12:55 GMT", "version": "v2" }, { "created": "Mon, 18 May 2015 14:11:13 GMT", "version": "v3" } ]
2015-05-19
[ [ "Ilisie", "Victor", "" ], [ "Pich", "Antonio", "" ] ]
After the recent discovery of a Higgs-like boson, the possibility of an enlarged scalar sector arises as a natural question. Experimental searches for charged scalars have been already performed with negative results. We analyze the phenomenology associated with a fermiophobic charged Higgs (it does not couple to fermi...
1507.02483
Hajime Fukuda
Cheng-Wei Chiang, Hajime Fukuda, Keisuke Harigaya, Masahiro Ibe and Tsutomu T. Yanagida
Diboson Resonance as a Portal to Hidden Strong Dynamics
21 pages, 4 figures
null
null
IPMU15-0104
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a new explanation for excess events observed in the search for a high-mass resonance decaying into dibosons by the ATLAS experiment. The resonance is identified as a composite spin-$0$ particle that couples to the Standard Model gauge bosons via dimension-5 operators. The excess events can be explained if ...
[ { "created": "Thu, 9 Jul 2015 12:37:03 GMT", "version": "v1" }, { "created": "Thu, 16 Jul 2015 05:23:48 GMT", "version": "v2" }, { "created": "Fri, 8 Jan 2016 01:54:24 GMT", "version": "v3" } ]
2016-01-11
[ [ "Chiang", "Cheng-Wei", "" ], [ "Fukuda", "Hajime", "" ], [ "Harigaya", "Keisuke", "" ], [ "Ibe", "Masahiro", "" ], [ "Yanagida", "Tsutomu T.", "" ] ]
We propose a new explanation for excess events observed in the search for a high-mass resonance decaying into dibosons by the ATLAS experiment. The resonance is identified as a composite spin-$0$ particle that couples to the Standard Model gauge bosons via dimension-5 operators. The excess events can be explained if th...
1412.2676
Jacques Soffer
Jacques Soffer, Claude Bourrely and Franco Buccella
How large is the gluon polarization in the statistical parton distributions approach?
4 pages, 3 figures, Invited talk presented by Jacques Soffer at " DIFFRACTION 2014 ",May 10 - 15, 2014, Primosten (Croatia) (to be published in the AIP Conference Proceedings{\deg}
null
10.1063/1.4915986
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We review the theoretical foundations of the quantum statistical approach to parton distributions and we show that by using some recent experimental results from Deep Inelastic Scattering, we are able to improve the description of the data by means of a new determination of the parton distributions. We will see that ...
[ { "created": "Mon, 8 Dec 2014 17:43:53 GMT", "version": "v1" } ]
2015-06-23
[ [ "Soffer", "Jacques", "" ], [ "Bourrely", "Claude", "" ], [ "Buccella", "Franco", "" ] ]
We review the theoretical foundations of the quantum statistical approach to parton distributions and we show that by using some recent experimental results from Deep Inelastic Scattering, we are able to improve the description of the data by means of a new determination of the parton distributions. We will see that a ...
0907.5465
HongWei Ke
Hong-Wei Ke, Xue-Qian Li and Zheng-Tao Wei
Whether new data on $D_s\to f_0(980) e^+ \nu_e$ can be understood if $f_0(980)$ consists of only the conventional $q\bar{q}$ structure
13pages, 3 figures; some changes were made, references added. Accepted by PRD
Phys.Rev.D80:074030,2009
10.1103/PhysRevD.80.074030
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Only two isospin-singlet scalar mesons $f_0(600)$ ($\sigma$) and $f_0(980)$ exist below 1 GeV, so that it is natural to suppose that they are two energy eigenstates which are mixtures of ${1\over\sqrt 2}(u\bar u+d\bar d)$ and $s\bar s$. Is this picture right? Generally, it is considered that $f_0(600)$ mainly consist...
[ { "created": "Fri, 31 Jul 2009 04:16:27 GMT", "version": "v1" }, { "created": "Wed, 7 Oct 2009 05:19:38 GMT", "version": "v2" } ]
2009-11-05
[ [ "Ke", "Hong-Wei", "" ], [ "Li", "Xue-Qian", "" ], [ "Wei", "Zheng-Tao", "" ] ]
Only two isospin-singlet scalar mesons $f_0(600)$ ($\sigma$) and $f_0(980)$ exist below 1 GeV, so that it is natural to suppose that they are two energy eigenstates which are mixtures of ${1\over\sqrt 2}(u\bar u+d\bar d)$ and $s\bar s$. Is this picture right? Generally, it is considered that $f_0(600)$ mainly consists ...
hep-ph/9708397
K. Matsuda
T. Fukuyama, K. Matsuda and H. Nishiura
CP Violation in Neutrinoless Double Beta Decay
14pp, LaTeX, 5 EPS Figures
null
null
null
hep-ph
null
We argue three-flavour neutrino mixing. We consider the neutrinos as Majorana particles and see how the neutrinoless double beta decay constrains the neutrino mixing angles. Our formulation is widely valid and is applied to the neutrino oscillation experiment.
[ { "created": "Tue, 19 Aug 1997 03:17:09 GMT", "version": "v1" } ]
2007-05-23
[ [ "Fukuyama", "T.", "" ], [ "Matsuda", "K.", "" ], [ "Nishiura", "H.", "" ] ]
We argue three-flavour neutrino mixing. We consider the neutrinos as Majorana particles and see how the neutrinoless double beta decay constrains the neutrino mixing angles. Our formulation is widely valid and is applied to the neutrino oscillation experiment.
hep-ph/9609411
Thomas Teubner
K. G. Chetyrkin (MPI fuer Physik, Munich, Germany), J. H. Kuhn (Uni. Karlsruhe, Germany), T. Teubner (Durham Uni., UK)
Extracting alpha_s from Electron-Positron Annihilation around 10 GeV
13 pages, LaTeX, 4 figures. Discussion of uncertainties slightly modified. Version to appear in Physical Review D. The complete paper, including figures, is also available via anonymous ftp at ftp://ttpux2.physik.uni-karlsruhe.de/ , or via www at http://www-ttp.physik.uni-karlsruhe.de/cgi-bin/preprints/
Phys. Rev. D 56, 3011 (1997)
10.1103/PhysRevD.56.3011
TTP96-35
hep-ph
null
The total cross section for electron-positron annihilation into hadrons is calculated in the region just below the B meson threshold. QCD corrections up to third order, quark mass effects, initial state radiation, the running of alpha_QED and the tails of the Upsilon resonances are included in the prediction. For giv...
[ { "created": "Thu, 19 Sep 1996 16:47:25 GMT", "version": "v1" }, { "created": "Wed, 11 Jun 1997 13:51:11 GMT", "version": "v2" } ]
2016-08-24
[ [ "Chetyrkin", "K. G.", "", "MPI fuer Physik, Munich, Germany" ], [ "Kuhn", "J. H.", "", "Uni.\n Karlsruhe, Germany" ], [ "Teubner", "T.", "", "Durham Uni., UK" ] ]
The total cross section for electron-positron annihilation into hadrons is calculated in the region just below the B meson threshold. QCD corrections up to third order, quark mass effects, initial state radiation, the running of alpha_QED and the tails of the Upsilon resonances are included in the prediction. For given...
1310.4751
Seishi Enomoto
Seishi Enomoto, Satoshi Iida, Nobuhiro Maekawa, Tomohiro Matsuda
Beauty is more attractive: Particle Production and Moduli trapping with Higher Dimensional Interaction
19 pages, 6 figures, 1 table
null
10.1007/JHEP01(2014)141
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study quantum effects on moduli dynamics arising from particle production near the enhanced symmetry point (ESP). We focus on non-renormalizable couplings between the moduli field and the field that becomes light at the ESP. Considering higher dimensional interaction, we find that particle production is significan...
[ { "created": "Thu, 17 Oct 2013 15:37:36 GMT", "version": "v1" }, { "created": "Sat, 26 Oct 2013 15:37:42 GMT", "version": "v2" }, { "created": "Wed, 29 Jan 2014 02:09:12 GMT", "version": "v3" } ]
2015-06-17
[ [ "Enomoto", "Seishi", "" ], [ "Iida", "Satoshi", "" ], [ "Maekawa", "Nobuhiro", "" ], [ "Matsuda", "Tomohiro", "" ] ]
We study quantum effects on moduli dynamics arising from particle production near the enhanced symmetry point (ESP). We focus on non-renormalizable couplings between the moduli field and the field that becomes light at the ESP. Considering higher dimensional interaction, we find that particle production is significant ...
1709.10508
Michael Russell
Michael Russell
Top quark physics in the Large Hadron Collider era
v1: 220 pages. PhD thesis, based on 1506.08845, 1512.03360, 1607.04304, 1701.08784 and 1704.01782. v2: typo in eq. (2.62) fixed
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore various aspects of top quark phenomenology at the Large Hadron Collider and proposed future machines. After summarising the role of the top quark in the Standard Model (and some of its well-known extensions), we discuss the formulation of the Standard Model as a low energy effective theory. We isolate the ...
[ { "created": "Fri, 29 Sep 2017 17:34:46 GMT", "version": "v1" }, { "created": "Wed, 31 Jan 2018 14:18:20 GMT", "version": "v2" } ]
2018-02-01
[ [ "Russell", "Michael", "" ] ]
We explore various aspects of top quark phenomenology at the Large Hadron Collider and proposed future machines. After summarising the role of the top quark in the Standard Model (and some of its well-known extensions), we discuss the formulation of the Standard Model as a low energy effective theory. We isolate the se...
2308.14682
Amit Tiwari
Qaisar Shafi, Amit Tiwari and Cem Salih Un
Muon $g-2$ and dark matter in Supersymmetric $SU(4)_c \times SU(2)_L \times SU(2)_R$
null
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
The latest FermiLab muon $g-2$ result shows a $5\sigma$ discrepancy with a ``widely advertised" Standard Model prediction. We consider a supersymmetric $SU(4)_c \times SU(2)_L \times SU(2)_R$ model in which this discrepancy is resolved by including contributions to muon $g-2$ from a relatively light SUSY sector. A va...
[ { "created": "Mon, 28 Aug 2023 16:17:28 GMT", "version": "v1" } ]
2023-08-29
[ [ "Shafi", "Qaisar", "" ], [ "Tiwari", "Amit", "" ], [ "Un", "Cem Salih", "" ] ]
The latest FermiLab muon $g-2$ result shows a $5\sigma$ discrepancy with a ``widely advertised" Standard Model prediction. We consider a supersymmetric $SU(4)_c \times SU(2)_L \times SU(2)_R$ model in which this discrepancy is resolved by including contributions to muon $g-2$ from a relatively light SUSY sector. A vari...
1905.07008
Cong Wang
Cong Wang, Jun-Kang He and Ming-Zhen Zhou
Twist-3 contributions to $\gamma\gamma\rightarrow\pi^+\pi^-,K^+K^-$ processes in perturbative QCD approach
19 pages, 7 figures and 2 tables. Contents improved and more discussions added
null
10.1140/epjc/s10052-019-7273-7
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
As one of the simplest hadronic processes, $\gamma\gamma\rightarrow M^{+}M^{-}$ ($M=\pi,K$) could be a good testing ground for our understanding of the perturbative and nonperturbative structure of QCD, and will be studied with high precision at BELLE-\RNum{2} in the near future. In this paper, we revisit these proce...
[ { "created": "Thu, 16 May 2019 19:36:10 GMT", "version": "v1" }, { "created": "Tue, 23 Jul 2019 09:56:10 GMT", "version": "v2" } ]
2019-10-02
[ [ "Wang", "Cong", "" ], [ "He", "Jun-Kang", "" ], [ "Zhou", "Ming-Zhen", "" ] ]
As one of the simplest hadronic processes, $\gamma\gamma\rightarrow M^{+}M^{-}$ ($M=\pi,K$) could be a good testing ground for our understanding of the perturbative and nonperturbative structure of QCD, and will be studied with high precision at BELLE-\RNum{2} in the near future. In this paper, we revisit these process...
hep-ph/0105246
Hai-Yang Cheng
Hai-Yang Cheng and Amarjit Soni
Semi-inclusive B Decays and Direct CP Violation in QCD Factorization
28 pages
Phys.Rev.D64:114013,2001
10.1103/PhysRevD.64.114013
BNL-HET-01/16
hep-ph hep-ex
null
We have systematically investigated the semi-inclusive B decays B->MX, which are manifestations of the quark decay b->Mq, within the framework of QCD-improved factorization. These decays are theoretically clean and have distinctive experimental signatures. We focus on a class of these that do not require any form fac...
[ { "created": "Wed, 23 May 2001 14:28:09 GMT", "version": "v1" } ]
2014-11-17
[ [ "Cheng", "Hai-Yang", "" ], [ "Soni", "Amarjit", "" ] ]
We have systematically investigated the semi-inclusive B decays B->MX, which are manifestations of the quark decay b->Mq, within the framework of QCD-improved factorization. These decays are theoretically clean and have distinctive experimental signatures. We focus on a class of these that do not require any form facto...
1706.00054
U. J. Salda\~na-Salazar
E. Barradas-Guevara, J. Lorenzo Diaz-Cruz, O. Felix-Beltran, U. J. Saldana-Salazar
Linking LFV Higgs decays $h\to \ell_i \ell_j$ with CP violation in multi-scalar models
25 pages, 11 figures; v2: new references added
null
null
CIFFU 17-01
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The study of LFV decays of the Higgs boson, $h\to \ell_i \ell_j$, has become an active research subject both from the experimental and theoretical points of view. Such decays vanish within the SM and are highly suppressed in several theoretical extensions. Due to its relevance and relative simplicity to reconstruct t...
[ { "created": "Wed, 31 May 2017 19:20:23 GMT", "version": "v1" }, { "created": "Sat, 10 Jun 2017 18:03:06 GMT", "version": "v2" } ]
2017-06-13
[ [ "Barradas-Guevara", "E.", "" ], [ "Diaz-Cruz", "J. Lorenzo", "" ], [ "Felix-Beltran", "O.", "" ], [ "Saldana-Salazar", "U. J.", "" ] ]
The study of LFV decays of the Higgs boson, $h\to \ell_i \ell_j$, has become an active research subject both from the experimental and theoretical points of view. Such decays vanish within the SM and are highly suppressed in several theoretical extensions. Due to its relevance and relative simplicity to reconstruct the...
1208.6202
Francesco Giacosa
F. Giacosa, D. Parganlija, P. Kovacs, and Gy. Wolf
Phenomenology of light mesons within a chiral approach
Contribution to the 12th International Workshop on Meson Production, Properties and Interaction, Krakow, Poland 31 May - 5 June 2012.5 pages, 1 Table
null
10.1051/epjconf/20123708006
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The so-called extended linear sigma model is a chiral model with (pseudo)scalar and (axial-)vector mesons. It is based on the requirements of (global) chiral symmetry and dilatation invariance. The purpose of this model is the description of the hadron phenomenology up to 1.7 GeV. We present the latest theoretical re...
[ { "created": "Thu, 30 Aug 2012 15:24:27 GMT", "version": "v1" } ]
2017-08-23
[ [ "Giacosa", "F.", "" ], [ "Parganlija", "D.", "" ], [ "Kovacs", "P.", "" ], [ "Wolf", "Gy.", "" ] ]
The so-called extended linear sigma model is a chiral model with (pseudo)scalar and (axial-)vector mesons. It is based on the requirements of (global) chiral symmetry and dilatation invariance. The purpose of this model is the description of the hadron phenomenology up to 1.7 GeV. We present the latest theoretical resu...
0802.4423
Vincenzo Branchina
Vincenzo Branchina, Hugo Faivre, Vincent Pangon
Effective potential and vacuum stability
10 pages, 4 figures
J.Phys.G36:015006,2009
10.1088/0954-3899/36/1/015006
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
By following previous work on this subject, we investigate the issue of the instability of the electroweak vacuum against the top loop corrections by performing an accurate analysis of a Higgs-Yukawa model. We find that, when the physical cutoff is properly implemented in the theory, the potential does not exhibit an...
[ { "created": "Fri, 29 Feb 2008 16:16:40 GMT", "version": "v1" } ]
2008-11-26
[ [ "Branchina", "Vincenzo", "" ], [ "Faivre", "Hugo", "" ], [ "Pangon", "Vincent", "" ] ]
By following previous work on this subject, we investigate the issue of the instability of the electroweak vacuum against the top loop corrections by performing an accurate analysis of a Higgs-Yukawa model. We find that, when the physical cutoff is properly implemented in the theory, the potential does not exhibit any ...
0710.4937
Gudrid Moortgat-Pick
K. Desch, J. Kalinowski, G. Moortgat-Pick, K. Rolbiecki, W.J. Stirling
Heavy sfermions in SUSY analysis at LHC and ILC
Submitted for the SUSY07 proceedings, 4 pages, LaTeX, 1 figure
null
null
IPPP/07/068, DCPT/07/136
hep-ph
null
The physics potential of the Large Hadron Collider in combination with the planned International Linear Collider is discussed for a difficult region of supersymmetry that is characterized by scalar SUSY particles with masses around 2 TeV. Precision measurements of masses, cross sections and forward-backward asymmetri...
[ { "created": "Thu, 25 Oct 2007 19:29:10 GMT", "version": "v1" } ]
2007-10-26
[ [ "Desch", "K.", "" ], [ "Kalinowski", "J.", "" ], [ "Moortgat-Pick", "G.", "" ], [ "Rolbiecki", "K.", "" ], [ "Stirling", "W. J.", "" ] ]
The physics potential of the Large Hadron Collider in combination with the planned International Linear Collider is discussed for a difficult region of supersymmetry that is characterized by scalar SUSY particles with masses around 2 TeV. Precision measurements of masses, cross sections and forward-backward asymmetries...
1606.06372
Seyda Ipek
Pilar Coloma and Seyda Ipek
Neutrino masses from a pseudo-Dirac Bino
5 pages, 2 figures, matches the published version
Phys. Rev. Lett. 117, 111803 (2016)
10.1103/PhysRevLett.117.111803
FERMILAB-PUB-16-225-T
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show that, in $U(1)_R$-symmetric supersymmetric models, the bino and its Dirac partner (the singlino) can play the role of right-handed neutrinos and generate the neutrino masses and mixing, without the need for traditional bilinear or trilinear R-parity violating operators. The two particles form a pseudo-Dirac p...
[ { "created": "Tue, 21 Jun 2016 00:21:14 GMT", "version": "v1" }, { "created": "Mon, 19 Sep 2016 17:24:29 GMT", "version": "v2" } ]
2016-09-20
[ [ "Coloma", "Pilar", "" ], [ "Ipek", "Seyda", "" ] ]
We show that, in $U(1)_R$-symmetric supersymmetric models, the bino and its Dirac partner (the singlino) can play the role of right-handed neutrinos and generate the neutrino masses and mixing, without the need for traditional bilinear or trilinear R-parity violating operators. The two particles form a pseudo-Dirac pai...
2107.03655
Stefano Carignano
Stefano Carignano and Cristina Manuel
Power corrections and gradient expansion in QED transport theory
14 pages, no figures
Phys. Rev. D 104, 056031 (2021)
10.1103/PhysRevD.104.056031
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The hard thermal loop (HTL) effective field theory of QED can be derived from the classical limit of transport theory, corresponding to the leading term in a gradient expansion of the quantum approach. In this paper, we show that power corrections to the HTL effective Lagrangian of QED can also be obtained from trans...
[ { "created": "Thu, 8 Jul 2021 07:42:10 GMT", "version": "v1" } ]
2021-10-04
[ [ "Carignano", "Stefano", "" ], [ "Manuel", "Cristina", "" ] ]
The hard thermal loop (HTL) effective field theory of QED can be derived from the classical limit of transport theory, corresponding to the leading term in a gradient expansion of the quantum approach. In this paper, we show that power corrections to the HTL effective Lagrangian of QED can also be obtained from transpo...
2302.02879
Hyun Min Lee
Seong-Sik Kim, Hyun Min Lee, Kimiko Yamashita
Positivity Bounds on Higgs-Portal Dark Matter
31 pages, 6 figures, v2: one-loop corrections to the positivity bounds added, version to be published in JHEP
null
10.1007/JHEP06(2023)124
null
hep-ph astro-ph.CO hep-th
http://creativecommons.org/licenses/by-nc-sa/4.0/
We consider the positivity bounds for WIMP scalar dark matter with effective Higgs-portal couplings up to dimension-8 operators. Taking the superposed states for Standard Model Higgs and scalar dark matter, we show that the part of the parameter space for the effective couplings, otherwise unconstrained by phenomenol...
[ { "created": "Mon, 6 Feb 2023 15:46:35 GMT", "version": "v1" }, { "created": "Mon, 5 Jun 2023 12:06:02 GMT", "version": "v2" } ]
2023-07-05
[ [ "Kim", "Seong-Sik", "" ], [ "Lee", "Hyun Min", "" ], [ "Yamashita", "Kimiko", "" ] ]
We consider the positivity bounds for WIMP scalar dark matter with effective Higgs-portal couplings up to dimension-8 operators. Taking the superposed states for Standard Model Higgs and scalar dark matter, we show that the part of the parameter space for the effective couplings, otherwise unconstrained by phenomenolog...
hep-ph/0111388
Martina Brisudova
Martina Brisudova
Small x divergences in a heavy quark-antiquark state
3 pgs. Talk, originally entitled "Die Hard with Vengence", presented at the Int. Light-Cone Workshop "Light-Cone Physics: Particles and Strings", Trento 2001
Nucl.Phys.Proc.Suppl. 108 (2002) 173-175
10.1016/S0920-5632(02)01324-5
null
hep-ph
null
With the current state of similarity renormalisation group approach to light-front QCD, it is possible to address with a degree of generality the issue of light-cone zero modes. We find, contrary to earlier results in a less general framework, that infrared divergences associated with the zero modes do not cancel out...
[ { "created": "Thu, 29 Nov 2001 00:15:26 GMT", "version": "v1" } ]
2009-11-07
[ [ "Brisudova", "Martina", "" ] ]
With the current state of similarity renormalisation group approach to light-front QCD, it is possible to address with a degree of generality the issue of light-cone zero modes. We find, contrary to earlier results in a less general framework, that infrared divergences associated with the zero modes do not cancel out i...
2306.11272
Sergey Salnikov
S.G. Salnikov, A.E. Bondar, A.I. Milstein
Coupled channels and production of near-threshold $B^{(*)}\bar{B}^{(*)}$ resonances in $e^{+}e^{-}$ annihilation
15 pages, 11 figures
Nucl. Phys. A 1041, 122764 (2024)
10.1016/j.nuclphysa.2023.122764
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The effects of final-state interaction of hadrons, produced in $e^{+}e^{-}$ annihilation near the threshold, are discussed. If there is a loosely bound state or a virtual state in a system of produced hadrons, then the energy dependence of hadroproduction cross section is very strong. Our approach is based on the use...
[ { "created": "Tue, 20 Jun 2023 03:59:37 GMT", "version": "v1" } ]
2023-11-21
[ [ "Salnikov", "S. G.", "" ], [ "Bondar", "A. E.", "" ], [ "Milstein", "A. I.", "" ] ]
The effects of final-state interaction of hadrons, produced in $e^{+}e^{-}$ annihilation near the threshold, are discussed. If there is a loosely bound state or a virtual state in a system of produced hadrons, then the energy dependence of hadroproduction cross section is very strong. Our approach is based on the use o...
1401.0206
Zhao Zhang
Zhao Zhang and Hai-Peng Su
Fate of separate chiral transitions at finite $\mu_I$ under the influence of mismatched vector interactions
12 pages, 8 figures
Phys. Rev. D 89, 054020 (2014)
10.1103/PhysRevD.89.054020
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The flavor-mixing induced by the mismatched vector-isoscalar and vector-isovector interactions at finite baryon chemical potential $\mu$ and isospin chemical potential $\mu_I$ is demonstrated in the Nambu-Jona-Lasinio (NJL) type model of QCD. The influence of this non-anomaly flavor-mixing on the possible separate ch...
[ { "created": "Tue, 31 Dec 2013 19:10:57 GMT", "version": "v1" } ]
2014-03-21
[ [ "Zhang", "Zhao", "" ], [ "Su", "Hai-Peng", "" ] ]
The flavor-mixing induced by the mismatched vector-isoscalar and vector-isovector interactions at finite baryon chemical potential $\mu$ and isospin chemical potential $\mu_I$ is demonstrated in the Nambu-Jona-Lasinio (NJL) type model of QCD. The influence of this non-anomaly flavor-mixing on the possible separate chir...
hep-ph/0105257
Firooz Arash
Firooz Arash and Ali N. Khorramian
Basic Structure in Hadrons
Contributed paper to XXXVIth RENCONTRES DE MORIOND on "QCD and High Energy Hadronic Interactions" ps file - 4 pages with 3 figures embeded in the text
null
null
null
hep-ph
null
We have calculated the Structure function a constituent quark in the NLO and from it we have derived the structure functions of hadrons. We found that perturbative generation of hadron structure falls short of conforming with data by a few percent. This is due to the presence of soft gluon and its radiation in the ha...
[ { "created": "Thu, 24 May 2001 15:54:58 GMT", "version": "v1" } ]
2007-05-23
[ [ "Arash", "Firooz", "" ], [ "Khorramian", "Ali N.", "" ] ]
We have calculated the Structure function a constituent quark in the NLO and from it we have derived the structure functions of hadrons. We found that perturbative generation of hadron structure falls short of conforming with data by a few percent. This is due to the presence of soft gluon and its radiation in the hadr...
1009.0270
Matthew Buckley
Matthew R. Buckley and Lisa Randall
Xogenesis
11 pages, 4 figures
JHEP 1109:009,2011
10.1007/JHEP09(2011)009
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a new paradigm for dark matter in which a dark matter asymmetry is established in the early universe that is then transferred to ordinary matter. We show this scenario can fit naturally into weak scale physics models, with a dark matter candidate mass of this order. We present several natural suppression m...
[ { "created": "Wed, 1 Sep 2010 20:06:54 GMT", "version": "v1" }, { "created": "Tue, 22 Feb 2011 16:02:12 GMT", "version": "v2" } ]
2011-09-13
[ [ "Buckley", "Matthew R.", "" ], [ "Randall", "Lisa", "" ] ]
We present a new paradigm for dark matter in which a dark matter asymmetry is established in the early universe that is then transferred to ordinary matter. We show this scenario can fit naturally into weak scale physics models, with a dark matter candidate mass of this order. We present several natural suppression mec...
2312.10828
Marcin Ku\'zniak Dr.
Marcin Ku\'zniak
Status of direct detection searches of heavy dark matter
Proceedings of XVIII International Conference on Topics in Astroparticle and Underground Physics (TAUP2023)
PoS(TAUP2023)018
10.22323/1.441.0018
null
hep-ph astro-ph.CO astro-ph.IM hep-ex nucl-ex
http://creativecommons.org/licenses/by/4.0/
Dark matter accounts for 26% of the mass-energy density of the Universe, however, its nature and origins remain the most important open questions in physics. The search for Weakly Interacting Massive Particles (WIMPs), one of the leading dark matter particle candidates, is now in a decisive phase, with experiments ta...
[ { "created": "Sun, 17 Dec 2023 21:56:10 GMT", "version": "v1" }, { "created": "Mon, 15 Jan 2024 22:13:55 GMT", "version": "v2" } ]
2024-01-17
[ [ "Kuźniak", "Marcin", "" ] ]
Dark matter accounts for 26% of the mass-energy density of the Universe, however, its nature and origins remain the most important open questions in physics. The search for Weakly Interacting Massive Particles (WIMPs), one of the leading dark matter particle candidates, is now in a decisive phase, with experiments targ...
1205.1557
Carlos Alberto Vaquera-Araujo
Carlos A. Vaquera-Araujo, Mauro Napsuciale, Rene Angeles-Martinez
Renormalization of the QED of self-interacting second order spin 1/2 fermions
32 pages, 9 figures. Published version
JHEP01(2013)011
10.1007/JHEP01(2013)011
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the one-loop level renormalization of the electrodynamics of spin 1/2 fermions in the Poincar\'e projector formalism, in arbitrary covariant gauge and including fermion self-interactions, which are dimension four operators in this framework. We show that the model is renormalizable for arbitrary values of th...
[ { "created": "Mon, 7 May 2012 22:59:10 GMT", "version": "v1" }, { "created": "Fri, 7 Sep 2012 00:44:39 GMT", "version": "v2" }, { "created": "Wed, 2 Jan 2013 19:28:02 GMT", "version": "v3" } ]
2013-01-03
[ [ "Vaquera-Araujo", "Carlos A.", "" ], [ "Napsuciale", "Mauro", "" ], [ "Angeles-Martinez", "Rene", "" ] ]
We study the one-loop level renormalization of the electrodynamics of spin 1/2 fermions in the Poincar\'e projector formalism, in arbitrary covariant gauge and including fermion self-interactions, which are dimension four operators in this framework. We show that the model is renormalizable for arbitrary values of the ...
hep-ph/9909490
Nikolai Krasnikov
N.V.Krasnikov and V.A.Matveev
Search for Standard Higgs Boson at Supercolliders
latex, 70 pages, 15 ps.figures
Phys.Part.Nucl.31:255-281,2000; Fiz.Elem.Chast.Atom.Yadra 31:525-575,2000
null
null
hep-ph
null
We review the standard Higgs boson physics and the search for higgs boson at LEP and LHC supercolliders
[ { "created": "Thu, 23 Sep 1999 16:29:42 GMT", "version": "v1" } ]
2014-11-17
[ [ "Krasnikov", "N. V.", "" ], [ "Matveev", "V. A.", "" ] ]
We review the standard Higgs boson physics and the search for higgs boson at LEP and LHC supercolliders
2106.14913
Miguel Vanvlasselaer
Aleksandr Azatov, Miguel Vanvlasselaer, Wen Yin
Baryogenesis via relativistic bubble walls
20 pages + appendix, 5 figures, references added, typos corrected, CP violation in decay taken into account, JHEP version
null
10.1007/JHEP10(2021)043
SISSA 13/2021/FISI TU-1127
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a novel mechanism which leads to the baryon asymmetry generation during the strong first order phase transition. If the bubble wall propagates with ultra-relativistic velocities, it has been shown that it can produce states much heavier than the scale of the transition and that those states are then out-of...
[ { "created": "Mon, 28 Jun 2021 18:00:49 GMT", "version": "v1" }, { "created": "Wed, 15 Sep 2021 08:54:13 GMT", "version": "v2" } ]
2021-10-27
[ [ "Azatov", "Aleksandr", "" ], [ "Vanvlasselaer", "Miguel", "" ], [ "Yin", "Wen", "" ] ]
We present a novel mechanism which leads to the baryon asymmetry generation during the strong first order phase transition. If the bubble wall propagates with ultra-relativistic velocities, it has been shown that it can produce states much heavier than the scale of the transition and that those states are then out-of-e...
hep-ph/9501385
Ramesh Verma
R. C. Verma and M. P. Khanna
Strong BBP couplings for the charmed baryons
18 pages, Latex, no figures
Indian J.Pure Appl.Phys. 39 (2001) 615-622
null
Alberta Thy-02-95; January, 1995
hep-ph
null
According to the Coleman-Glashow null theorem if all the symmetry breaking effects belong to the same regular representation (octet in the case of SU(3) and {\bf 15} in the case of SU(4)) and are generated in a tadpole type mechanism, the strangeness changing (charm changing) weak transitions generated through the S$...
[ { "created": "Thu, 26 Jan 1995 17:26:12 GMT", "version": "v1" } ]
2016-09-01
[ [ "Verma", "R. C.", "" ], [ "Khanna", "M. P.", "" ] ]
According to the Coleman-Glashow null theorem if all the symmetry breaking effects belong to the same regular representation (octet in the case of SU(3) and {\bf 15} in the case of SU(4)) and are generated in a tadpole type mechanism, the strangeness changing (charm changing) weak transitions generated through the S$_{...