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hep-ph/0611070
Wolfgang Sch\"afer
W. Sch\"afer
Nonlinear k_t factorisation: recent progress and perspectives
10 pages, 2 figs, talk given at Diffraction 2006, International Workshop on Diffraction in High-Energy Physics September 5-10, 2006, Adamantas, Milos island, Greece
PoSDIFF2006:040,2006
null
null
hep-ph
null
Hard scattering in a strongly absorptive regime requires a novel nonlinear k_t -- factorization. Here we discuss two recent developments: firstly the evaluation of radiative corrections to single particle spectra, and secondly an extension of the formalism to address topological cross sections and unitarity cutting r...
[ { "created": "Tue, 7 Nov 2006 15:31:58 GMT", "version": "v1" } ]
2008-11-26
[ [ "Schäfer", "W.", "" ] ]
Hard scattering in a strongly absorptive regime requires a novel nonlinear k_t -- factorization. Here we discuss two recent developments: firstly the evaluation of radiative corrections to single particle spectra, and secondly an extension of the formalism to address topological cross sections and unitarity cutting rul...
hep-ph/0406307
Yuki Kamo
Y. Kamo, S. Yajima, Y. Higasida, S.-I. Kubota, and S. Tokuo (Kumamoto University)
Studies of resonance conditions on neutrino oscillations in matter
20 pages, 4 Postscript figures
null
null
null
hep-ph
null
We analytically discuss the resonance conditions among several neutrinos in matter. The discriminant for the characteristic equation of the Hamiltonian is expressed by the coefficients of the equation. The result of the computation for the discriminants tells us that the neutrino energy and the matter density are in ...
[ { "created": "Mon, 28 Jun 2004 15:21:02 GMT", "version": "v1" }, { "created": "Wed, 18 Aug 2004 13:30:31 GMT", "version": "v2" }, { "created": "Wed, 22 Sep 2004 23:19:57 GMT", "version": "v3" } ]
2007-05-23
[ [ "Kamo", "Y.", "", "Kumamoto\n University" ], [ "Yajima", "S.", "", "Kumamoto\n University" ], [ "Higasida", "Y.", "", "Kumamoto\n University" ], [ "Kubota", "S. -I.", "", "Kumamoto\n University" ], [ "Tokuo", "S.", "",...
We analytically discuss the resonance conditions among several neutrinos in matter. The discriminant for the characteristic equation of the Hamiltonian is expressed by the coefficients of the equation. The result of the computation for the discriminants tells us that the neutrino energy and the matter density are in in...
hep-ph/0107218
Jeonghyeon Song
A.G. Akeroyd (KIAS), Chun Liu (ITP, Beijing), Jeonghyeon Song (KIAS)
Stau LSP and comparison with H^+(-) phenomenology
22 pages, 2 figures, Revtex, short discussion and references added
Phys.Rev. D65 (2002) 015008
10.1103/PhysRevD.65.015008
KIAS P01032, AS-ITP-2001-013
hep-ph hep-ex
null
In supersymmetric models with explicit breaking of R-parity the lightest supersymmetric particle (LSP) may be the lightest stau, $\stau_1$. Such a scenario would provide a clear sign of R-parity violating SUSY, although its phenomenology may resemble that of a charged Higgs boson, $H^\pm$. We discuss various ways of ...
[ { "created": "Fri, 20 Jul 2001 06:26:28 GMT", "version": "v1" }, { "created": "Tue, 31 Jul 2001 04:57:43 GMT", "version": "v2" }, { "created": "Sat, 15 Sep 2001 14:29:00 GMT", "version": "v3" } ]
2009-11-07
[ [ "Akeroyd", "A. G.", "", "KIAS" ], [ "Liu", "Chun", "", "ITP, Beijing" ], [ "Song", "Jeonghyeon", "", "KIAS" ] ]
In supersymmetric models with explicit breaking of R-parity the lightest supersymmetric particle (LSP) may be the lightest stau, $\stau_1$. Such a scenario would provide a clear sign of R-parity violating SUSY, although its phenomenology may resemble that of a charged Higgs boson, $H^\pm$. We discuss various ways of di...
hep-ph/0109162
Alon Faraggi
Alon E. Faraggi and Marc Thormeier
String Inspired Z' Model With Stable Proton and Light Neutrino Masses
20 pages. Standard LaTex. Version to appear in NPB
Nucl.Phys.B624:163-180,2002
10.1016/S0550-3213(01)00646-0
OUTP-01-36P
hep-ph hep-th
null
Grand unification, and its incarnation in the form of heterotic-string unification, are the only extensions of the Standard Model that are rooted in the structure of the Standard Model itself. In this context, it was proposed that the exclusiveness of proton stability and suppression of neutrino masses necessitates t...
[ { "created": "Tue, 18 Sep 2001 15:34:50 GMT", "version": "v1" }, { "created": "Tue, 11 Dec 2001 14:14:11 GMT", "version": "v2" } ]
2011-07-19
[ [ "Faraggi", "Alon E.", "" ], [ "Thormeier", "Marc", "" ] ]
Grand unification, and its incarnation in the form of heterotic-string unification, are the only extensions of the Standard Model that are rooted in the structure of the Standard Model itself. In this context, it was proposed that the exclusiveness of proton stability and suppression of neutrino masses necessitates the...
hep-ph/0204309
null
H.-Th. Elze
Relativistic Quantum Transport Theory
Lectures presented at PASI "New States of Matter in Hadronic Interactions", Campos do Jordao, Brazil, Jan.7-18, 2002. - 19 pages; LaTeX
AIP Conf.Proc.631:229,2002
10.1063/1.1513683
null
hep-ph astro-ph nucl-th
null
Relativistic quantum transport theory has begun to play an important role in the space-time description of matter under extreme conditions of high energy density in out-of-equilibrium situations. The following introductory lectures on some of its basic concepts and methods comprise the sections: 1. Introduction; 2. A...
[ { "created": "Fri, 26 Apr 2002 13:23:07 GMT", "version": "v1" } ]
2010-12-13
[ [ "Elze", "H. -Th.", "" ] ]
Relativistic quantum transport theory has begun to play an important role in the space-time description of matter under extreme conditions of high energy density in out-of-equilibrium situations. The following introductory lectures on some of its basic concepts and methods comprise the sections: 1. Introduction; 2. Aim...
1910.13963
Anatoly Radyushkin
Ian Balitsky, Wayne Morris and Anatoly Radyushkin
Gluon Pseudo-Distributions at Short Distances: Forward Case
8 pages, 5 figures. Gluon-quark term added
null
10.1016/j.physletb.2020.135621
JLAB-THY-19-3087
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present the results that are necessary in the ongoing lattice calculations of the gluon parton distribution functions (PDFs) within the pseudo-PDF approach. We give a classification of possible two-gluon correlator functions and identify those that contain the invariant amplitude determining the gluon PDF in the l...
[ { "created": "Wed, 30 Oct 2019 16:28:51 GMT", "version": "v1" }, { "created": "Thu, 30 Jan 2020 17:56:09 GMT", "version": "v2" }, { "created": "Tue, 20 Jul 2021 11:27:55 GMT", "version": "v3" } ]
2021-07-21
[ [ "Balitsky", "Ian", "" ], [ "Morris", "Wayne", "" ], [ "Radyushkin", "Anatoly", "" ] ]
We present the results that are necessary in the ongoing lattice calculations of the gluon parton distribution functions (PDFs) within the pseudo-PDF approach. We give a classification of possible two-gluon correlator functions and identify those that contain the invariant amplitude determining the gluon PDF in the lig...
1408.0299
Martin Wolfgang Winkler
Rolf Kappl, Martin Wolfgang Winkler
The Cosmic Ray Antiproton Background for AMS-02
24 pages, 10 figures, source term and secondary flux available in the ancillary files
null
10.1088/1475-7516/2014/09/051
DESY 14-138
hep-ph astro-ph.CO astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The AMS-02 experiment is measuring the cosmic ray antiproton flux with high precision. The interpretation of the upcoming data requires a thorough understanding of the secondary antiproton background. In this work, we employ newly available data of the NA49 experiment at CERN, in order to recalculate the antiproton s...
[ { "created": "Fri, 1 Aug 2014 20:27:07 GMT", "version": "v1" } ]
2015-06-22
[ [ "Kappl", "Rolf", "" ], [ "Winkler", "Martin Wolfgang", "" ] ]
The AMS-02 experiment is measuring the cosmic ray antiproton flux with high precision. The interpretation of the upcoming data requires a thorough understanding of the secondary antiproton background. In this work, we employ newly available data of the NA49 experiment at CERN, in order to recalculate the antiproton sou...
0906.0882
A. D. Polosa
C Bignamini, B Grinstein, F Piccinini, AD Polosa, C Sabelli
Is the X(3872) Production Cross Section at Tevatron Compatible with a Hadron Molecule Interpretation?
4 pages, 4 figures, accepted for publication in Phys. Rev. Lett
Phys.Rev.Lett.103:162001,2009
10.1103/PhysRevLett.103.162001
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The X(3872) is universally accepted to be an exotic hadron. In this letter we assume that the X(3872) is a D0 \bar D0* molecule, as claimed by many authors, and attempt an estimate of its prompt production cross section at Tevatron. A comparison with CDF data allows to draw some qualitative conclusions about this sta...
[ { "created": "Thu, 4 Jun 2009 11:10:33 GMT", "version": "v1" }, { "created": "Fri, 18 Sep 2009 13:03:59 GMT", "version": "v2" } ]
2009-10-29
[ [ "Bignamini", "C", "" ], [ "Grinstein", "B", "" ], [ "Piccinini", "F", "" ], [ "Polosa", "AD", "" ], [ "Sabelli", "C", "" ] ]
The X(3872) is universally accepted to be an exotic hadron. In this letter we assume that the X(3872) is a D0 \bar D0* molecule, as claimed by many authors, and attempt an estimate of its prompt production cross section at Tevatron. A comparison with CDF data allows to draw some qualitative conclusions about this state...
hep-ph/0106084
Erik Bartos
E. Bartos, A.-Z. Dubnickova, S. Dubnicka, E. Kuraev and E. Zemlyanaya
Scalar and pseudoscalar meson pole terms in the hadronic light-by-light contributions to $a_\mu^{had}$
16 LaTeX pages, 2 figures, revised paper
Nucl.Phys. B632 (2002) 330-342
10.1016/S0550-3213(02)00242-0
null
hep-ph
null
Third QED order hadronic light-by-light (LBL) contributions $a_\mu^{LBL}(M)$ to the anomalous magnetic moment of the muon $a_\mu^{had}$ from the pole terms of scalar $\sigma$, $a_0(980)$ and pseudoscalar $\pi^0$, $\eta$, $\eta '$ mesons (M) in the framework of the linearized extended Nambu-Jona-Lasinio model are eval...
[ { "created": "Fri, 8 Jun 2001 12:42:03 GMT", "version": "v1" }, { "created": "Sat, 9 Jun 2001 07:06:02 GMT", "version": "v2" }, { "created": "Mon, 21 Jan 2002 11:29:44 GMT", "version": "v3" } ]
2009-11-07
[ [ "Bartos", "E.", "" ], [ "Dubnickova", "A. -Z.", "" ], [ "Dubnicka", "S.", "" ], [ "Kuraev", "E.", "" ], [ "Zemlyanaya", "E.", "" ] ]
Third QED order hadronic light-by-light (LBL) contributions $a_\mu^{LBL}(M)$ to the anomalous magnetic moment of the muon $a_\mu^{had}$ from the pole terms of scalar $\sigma$, $a_0(980)$ and pseudoscalar $\pi^0$, $\eta$, $\eta '$ mesons (M) in the framework of the linearized extended Nambu-Jona-Lasinio model are evalua...
1907.06471
Christopher Flett
Chris A. Flett, Stephen P. Jones, Alan D. Martin, Misha G. Ryskin and Thomas Teubner
Towards a determination of the low $x$ gluon via exclusive $J/\psi$ production
5 pages, 5 figures. Proceedings of the XXVII International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS2019), submitted to PoS
null
null
CERN-TH-2019-107, IPPP/19/53, LTH 1209
hep-ph
http://creativecommons.org/licenses/by/4.0/
We discuss how the stability of the theoretical prediction for exclusive $J/\psi$ photoproduction has been improved through a systematic taming of the known $\overline{\text{MS}}$ coefficient functions by accounting for a formally power suppressed, but numerically significant, correction encoded within a $Q_0$ cut. T...
[ { "created": "Mon, 15 Jul 2019 12:42:16 GMT", "version": "v1" } ]
2019-07-16
[ [ "Flett", "Chris A.", "" ], [ "Jones", "Stephen P.", "" ], [ "Martin", "Alan D.", "" ], [ "Ryskin", "Misha G.", "" ], [ "Teubner", "Thomas", "" ] ]
We discuss how the stability of the theoretical prediction for exclusive $J/\psi$ photoproduction has been improved through a systematic taming of the known $\overline{\text{MS}}$ coefficient functions by accounting for a formally power suppressed, but numerically significant, correction encoded within a $Q_0$ cut. The...
1308.1879
Joan Elias-Miro
J. Elias-Miro, J.R. Espinosa, E. Masso, A. Pomarol
Higgs windows to new physics through d = 6 operators: Constraints and one-loop anomalous dimensions
45 pages. Some minor typos fixed. Matches published version
null
10.1007/JHEP11(2013)066
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The leading contributions from heavy new physics to Higgs processes can be captured in a model-independent way by dimension-six operators in an effective Lagrangian approach. We present a complete analysis of how these contributions affect Higgs couplings. Under certain well-motivated assumptions, we find that 8 CP-e...
[ { "created": "Thu, 8 Aug 2013 15:37:22 GMT", "version": "v1" }, { "created": "Sun, 17 Nov 2013 20:16:10 GMT", "version": "v2" } ]
2015-06-16
[ [ "Elias-Miro", "J.", "" ], [ "Espinosa", "J. R.", "" ], [ "Masso", "E.", "" ], [ "Pomarol", "A.", "" ] ]
The leading contributions from heavy new physics to Higgs processes can be captured in a model-independent way by dimension-six operators in an effective Lagrangian approach. We present a complete analysis of how these contributions affect Higgs couplings. Under certain well-motivated assumptions, we find that 8 CP-eve...
2406.01596
Giulio Barni Mr
Giulio Barni, Simone Blasi, Miguel Vanvlasselaer
The hydrodynamics of inverse phase transitions
29 pages + appendices
null
null
null
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
First order phase transitions are violent phenomena that occur when the state of the universe evolves abruptly from one vacuum to another. A \emph{direct} phase transition connects a local vacuum to a deeper vacuum of the zero--temperature potential, and the energy difference between the two minima manifests itself i...
[ { "created": "Mon, 3 Jun 2024 17:59:57 GMT", "version": "v1" } ]
2024-06-04
[ [ "Barni", "Giulio", "" ], [ "Blasi", "Simone", "" ], [ "Vanvlasselaer", "Miguel", "" ] ]
First order phase transitions are violent phenomena that occur when the state of the universe evolves abruptly from one vacuum to another. A \emph{direct} phase transition connects a local vacuum to a deeper vacuum of the zero--temperature potential, and the energy difference between the two minima manifests itself in ...
hep-ph/9806220
Wei-Min Zhang
A. Harindranath, Rajen Kundu, and Wei-Min Zhang
Nonperturbative Description of Deep Inelastic Structure Functions in Light-Front QCD
Revtex, 30 pages and no figure
Phys.Rev. D59 (1999) 094012
10.1103/PhysRevD.59.094012
null
hep-ph
null
We explore the deep inelastic structure functions of hadrons nonperturbatively in an inverse power expansion of the light-front energy of the probe in the framework of light-front QCD. We arrive at the general expressions for various structure functions as the Fourier transform of matrix elements of different compone...
[ { "created": "Tue, 2 Jun 1998 02:14:47 GMT", "version": "v1" } ]
2009-10-31
[ [ "Harindranath", "A.", "" ], [ "Kundu", "Rajen", "" ], [ "Zhang", "Wei-Min", "" ] ]
We explore the deep inelastic structure functions of hadrons nonperturbatively in an inverse power expansion of the light-front energy of the probe in the framework of light-front QCD. We arrive at the general expressions for various structure functions as the Fourier transform of matrix elements of different component...
hep-ph/0309047
Stefan Groote
M. Fischer, S. Groote, J.G. K\"orner, M.C. Mauser
Semi-inclusive decays Lambda_b -> X_c + D_s^* at O(alpha_s) including Lambda_b and D_s^* polarization effects
19 pages in LaTeX, including 5 encapsulated Postscript figures, published version
Phys.Rev.D70:094026,2004
10.1103/PhysRevD.70.094026
MZ-TH/03-06
hep-ph
null
In the leading order of the (1/m_b)-expansion in HQET the dominant contribution to the semi-inclusive decays of polarized Lambda_b baryons into the charm-strangeness mesons D_s and D_s^* is given by the partonic process b(up) -> c + (D_s^-, D_s^{*-}). Using standard values for the parameters of the process one expect...
[ { "created": "Thu, 4 Sep 2003 14:53:57 GMT", "version": "v1" }, { "created": "Thu, 18 Nov 2004 14:09:59 GMT", "version": "v2" } ]
2011-01-27
[ [ "Fischer", "M.", "" ], [ "Groote", "S.", "" ], [ "Körner", "J. G.", "" ], [ "Mauser", "M. C.", "" ] ]
In the leading order of the (1/m_b)-expansion in HQET the dominant contribution to the semi-inclusive decays of polarized Lambda_b baryons into the charm-strangeness mesons D_s and D_s^* is given by the partonic process b(up) -> c + (D_s^-, D_s^{*-}). Using standard values for the parameters of the process one expects ...
hep-ph/0003139
Miura
Takahiro Miura, Eiichi Takasugi, Masaki Yoshimura
Large CP Violation, Large Mixings of Neutrinos and the $Z_3$ Symmetry
LaTeX, 17 pages; minor corrections and some comments added
Phys.Rev.D63:013001,2001
10.1103/PhysRevD.63.013001
OU-HET 343
hep-ph
null
We present neutrino mass matrices which predict the atmospheric neutrino mixing to be almost maximal, $\sin^2 2\theta_{atm}>0.999$, as well as the large solar neutrino mixing, $8/9>\sin^2 2\theta_{sol}>0.87$, and the large CP violation (the CP violation phase in the standard form is maximal $\delta=\pi/2$), based on ...
[ { "created": "Wed, 15 Mar 2000 08:19:01 GMT", "version": "v1" }, { "created": "Tue, 11 Apr 2000 09:30:31 GMT", "version": "v2" }, { "created": "Thu, 27 Apr 2000 06:42:59 GMT", "version": "v3" } ]
2009-12-31
[ [ "Miura", "Takahiro", "" ], [ "Takasugi", "Eiichi", "" ], [ "Yoshimura", "Masaki", "" ] ]
We present neutrino mass matrices which predict the atmospheric neutrino mixing to be almost maximal, $\sin^2 2\theta_{atm}>0.999$, as well as the large solar neutrino mixing, $8/9>\sin^2 2\theta_{sol}>0.87$, and the large CP violation (the CP violation phase in the standard form is maximal $\delta=\pi/2$), based on th...
1405.7927
Lorenzo Luis Salcedo
Carmen Garcia-Recio and Lorenzo Luis Salcedo
Leptonic CP violating effective action for Dirac and Majorana neutrinos
47 pages, 4 figures
JHEP08:156,2014
10.1007/JHEP08(2014)156
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the Standard Model minimally extended to include massive neutrinos, we compute the leading CP-violating zero temperature contributions to the one-loop effective action induced by integration of the leptons. Such contributions start at operators of dimension six and they are P even for Dirac neutrinos and P even or...
[ { "created": "Fri, 30 May 2014 17:43:20 GMT", "version": "v1" } ]
2014-09-04
[ [ "Garcia-Recio", "Carmen", "" ], [ "Salcedo", "Lorenzo Luis", "" ] ]
In the Standard Model minimally extended to include massive neutrinos, we compute the leading CP-violating zero temperature contributions to the one-loop effective action induced by integration of the leptons. Such contributions start at operators of dimension six and they are P even for Dirac neutrinos and P even or o...
2404.15047
Jiang-Hao Yu
Chuan-Qiang Song, Hao Sun, Jiang-Hao Yu
Complete CP-eigen Bases of Meson-Baryon Chiral Lagrangian up to $p^5$-order
113 pages, 18 tables
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Chiral perturbation theory describes the low energy dynamics of mesons and baryons in terms of the nonlinear Goldstone boson and fermion degrees of freedom. Through the Young tensor technique, we construct the on-shell operator bases for the meson-baryon system up to $p^5$-order, using the chiral dimension power coun...
[ { "created": "Tue, 23 Apr 2024 13:48:04 GMT", "version": "v1" } ]
2024-04-24
[ [ "Song", "Chuan-Qiang", "" ], [ "Sun", "Hao", "" ], [ "Yu", "Jiang-Hao", "" ] ]
Chiral perturbation theory describes the low energy dynamics of mesons and baryons in terms of the nonlinear Goldstone boson and fermion degrees of freedom. Through the Young tensor technique, we construct the on-shell operator bases for the meson-baryon system up to $p^5$-order, using the chiral dimension power counti...
hep-ph/0608341
Jyoti Saha
Soumitra Nandi and Jyoti Prasad Saha
$B_s-\bar{B_s}$ mixing, B decays and R-parity violating supersymmetry
latex, 13 pages, 1 eps and 2 ps figures
Phys.Rev.D74:095007,2006
10.1103/PhysRevD.74.095007
null
hep-ph
null
We discuss the implications of the recent measurement of the $B_s-\bar{B_s}$ oscillation frequency $\Delta M_s$ on the parameter space of R-parity violating supersymmetry. For completeness, we also discuss the bounds coming from leptonic, semileptonic, and nonleptonic B decay modes, and point out some possibly intere...
[ { "created": "Thu, 31 Aug 2006 14:54:36 GMT", "version": "v1" } ]
2008-11-26
[ [ "Nandi", "Soumitra", "" ], [ "Saha", "Jyoti Prasad", "" ] ]
We discuss the implications of the recent measurement of the $B_s-\bar{B_s}$ oscillation frequency $\Delta M_s$ on the parameter space of R-parity violating supersymmetry. For completeness, we also discuss the bounds coming from leptonic, semileptonic, and nonleptonic B decay modes, and point out some possibly interest...
hep-ph/0311236
Hideaki Ozaki
H. Ozaki
Perturbative out of equilibrium quantum field theory beyond the gradient approximation and generalized Boltzmann equation
LaTeX2e, 20 pages
Prog.Theor.Phys. 111 (2004) 105-122
10.1143/PTP.111.105
null
hep-ph
null
Using the closed-time-path formalism, we construct perturbative frameworks, in terms of quasiparticle picture, for studying quasiuniform relativistic quantum field systems near equilibrium and non-equilibrium quasistationary systems. We employ the derivative expansion and take in up to the second-order term, i.e., on...
[ { "created": "Wed, 19 Nov 2003 09:53:27 GMT", "version": "v1" } ]
2009-11-10
[ [ "Ozaki", "H.", "" ] ]
Using the closed-time-path formalism, we construct perturbative frameworks, in terms of quasiparticle picture, for studying quasiuniform relativistic quantum field systems near equilibrium and non-equilibrium quasistationary systems. We employ the derivative expansion and take in up to the second-order term, i.e., one-...
1610.02147
Korneliy Todyshev
A.G. Shamov, K.Yu. Todyshev
Analysis of BaBar, Belle, BES-II, CLEO and KEDR data on $\psi(3770)$ line shape and determination of the resonance parameters
null
null
10.1016/j.physletb.2017.03.057
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The available data on the $D\overline{D}$ and inclusive hadronic cross sections in the $\psi(3770)$ region from the BaBar, Belle, BES-II, CLEO and KEDR experiments have been analyzed assuming that systematic uncertainties on cross sections measured by different detectors are not correlated. Four theoretical models pr...
[ { "created": "Fri, 7 Oct 2016 05:24:29 GMT", "version": "v1" }, { "created": "Wed, 15 Mar 2017 02:09:16 GMT", "version": "v2" } ]
2017-04-05
[ [ "Shamov", "A. G.", "" ], [ "Todyshev", "K. Yu.", "" ] ]
The available data on the $D\overline{D}$ and inclusive hadronic cross sections in the $\psi(3770)$ region from the BaBar, Belle, BES-II, CLEO and KEDR experiments have been analyzed assuming that systematic uncertainties on cross sections measured by different detectors are not correlated. Four theoretical models pred...
hep-ph/0010254
Jiri Chyla
Jiri Chyla and Marek Tasevsky
Resolved ${\mathbf {\gamma^*_L}}$ in hard collisions of virtual photons: QCD effects
7 pages, Latex using EPJ style, 8 eps figures
Eur.Phys.J.C18:723-729,2001
10.1007/s100520100560
PRA-HEP/00-07
hep-ph
null
The manifestations of QCD effects on quark and gluon distribution functions of longitudinally polarized virtual photons involved in hard collisions are investigated. It is shown that for moderate photon virtualities and in the kinematical region accessible at HERA and LEP these effects are sizable and significantly e...
[ { "created": "Sat, 21 Oct 2000 16:02:47 GMT", "version": "v1" } ]
2009-01-07
[ [ "Chyla", "Jiri", "" ], [ "Tasevsky", "Marek", "" ] ]
The manifestations of QCD effects on quark and gluon distribution functions of longitudinally polarized virtual photons involved in hard collisions are investigated. It is shown that for moderate photon virtualities and in the kinematical region accessible at HERA and LEP these effects are sizable and significantly enh...
1810.05202
Yuri Gomes
Y.M.P. Gomes, J. T. Guaitolini Junior
Elastic light-by-light scattering in a nonminimal Lorentz violation scenario
slight modification in text, to appear in PRD
Phys. Rev. D 99, 055006 (2019)
10.1103/PhysRevD.99.055006
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the last years the Lorentz Violation scheme was implemented in QFT, in special in standard model of particle physics, in an attempt to explain our actual open problems. In this work we analyze nonminimal couplings between a Lorentz-violating 4-vector and the photon field and the leptonic current of QED. The 1-loop...
[ { "created": "Thu, 11 Oct 2018 18:56:14 GMT", "version": "v1" }, { "created": "Tue, 19 Feb 2019 17:05:45 GMT", "version": "v2" } ]
2019-03-27
[ [ "Gomes", "Y. M. P.", "" ], [ "Junior", "J. T. Guaitolini", "" ] ]
In the last years the Lorentz Violation scheme was implemented in QFT, in special in standard model of particle physics, in an attempt to explain our actual open problems. In this work we analyze nonminimal couplings between a Lorentz-violating 4-vector and the photon field and the leptonic current of QED. The 1-loop c...
hep-ph/9510445
Wolfgang Ochs
Wolfgang Ochs (MPI Munich) and Jacek Wosiek (University Cracow)
Double Scaling of Angular Correlations inside Jets
LATEX file, 2 pages, uses wstwocl.sty and epsfig.sty, 2 figures added as uuencoded gzipped tarred psfile, to appear in the Proc. of the Int. Europhysics Conf. on High Energy Physics, Brussels
null
null
MPI-PhT/95-99
hep-ph
null
Angular correlations of partons have been derived for high energy jets in QCD. Interesting new scaling properties with two redundant variables (jet energy $P$ and jet opening angle $\Theta$) emerge which can be tested within a parton-hadron duality picture. Recent results from LEP support the scaling in $\Theta$; the...
[ { "created": "Mon, 30 Oct 1995 12:06:30 GMT", "version": "v1" } ]
2007-05-23
[ [ "Ochs", "Wolfgang", "", "MPI Munich" ], [ "Wosiek", "Jacek", "", "University Cracow" ] ]
Angular correlations of partons have been derived for high energy jets in QCD. Interesting new scaling properties with two redundant variables (jet energy $P$ and jet opening angle $\Theta$) emerge which can be tested within a parton-hadron duality picture. Recent results from LEP support the scaling in $\Theta$; the s...
2203.03660
Daniel Locke
Alexander Belyaev, Giacomo Cacciapaglia, Daniel Locke, Alexander Pukhov
Minimal Consistent Dark Matter models for systematic experimental characterisation: Fermion Dark Matter
55 pages, 19 figures
null
10.1007/JHEP10(2022)014
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The search for a Dark Matter particle is the new grail and hard-sought nirvana of the particle physics community. From the theoretical side, it is the main challenge to provide a consistent and model-independent tool for comparing the bounds and reach of the diverse experiments. We propose a first complete classifica...
[ { "created": "Mon, 7 Mar 2022 19:00:31 GMT", "version": "v1" } ]
2022-10-26
[ [ "Belyaev", "Alexander", "" ], [ "Cacciapaglia", "Giacomo", "" ], [ "Locke", "Daniel", "" ], [ "Pukhov", "Alexander", "" ] ]
The search for a Dark Matter particle is the new grail and hard-sought nirvana of the particle physics community. From the theoretical side, it is the main challenge to provide a consistent and model-independent tool for comparing the bounds and reach of the diverse experiments. We propose a first complete classificati...
1810.00496
Marco Radici
Marco Radici
First extraction of transversity from data on lepton-hadron scattering and hadronic collisions
Talk presented at CIPANP 2018. 9 pages, LaTeX, 4 double figures in pdf
null
null
CIPANP2018-Radici
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present the first extraction of the transversity distribution based on the global analysis of pion-pair production in deep-inelastic scattering and in proton-proton collisions with one transversely polarized proton. The extraction relies on the knowledge of di-hadron fragmentation functions, which are taken from t...
[ { "created": "Mon, 1 Oct 2018 00:57:15 GMT", "version": "v1" } ]
2018-10-02
[ [ "Radici", "Marco", "" ] ]
We present the first extraction of the transversity distribution based on the global analysis of pion-pair production in deep-inelastic scattering and in proton-proton collisions with one transversely polarized proton. The extraction relies on the knowledge of di-hadron fragmentation functions, which are taken from the...
0903.3629
Zhong-Bo Kang
Zhong-Bo Kang (Iowa State U.) and Jian-Wei Qiu (Iowa State U.)
Test the time-reversal modified universality of the Sivers function
4 pages, 4 figures
Phys.Rev.Lett.103:172001,2009
10.1103/PhysRevLett.103.172001
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We derive the time-reversal modified universality for both quark and gluon Sivers function from the parity and time-reversal invariance of QCD. We calculate the single transverse-spin asymmetry of inclusive lepton from the decay of $W$ bosons in polarized proton-proton collision at RHIC, in terms of the Sivers functi...
[ { "created": "Sun, 22 Mar 2009 20:24:00 GMT", "version": "v1" } ]
2009-10-29
[ [ "Kang", "Zhong-Bo", "", "Iowa State U." ], [ "Qiu", "Jian-Wei", "", "Iowa State U." ] ]
We derive the time-reversal modified universality for both quark and gluon Sivers function from the parity and time-reversal invariance of QCD. We calculate the single transverse-spin asymmetry of inclusive lepton from the decay of $W$ bosons in polarized proton-proton collision at RHIC, in terms of the Sivers function...
hep-ph/9803317
Gabriel Sanchez-Colon
V. Gupta (1), R. Huerta (1) and G. Sanchez-Colon (1,2) ((1) CINVESTAV-Merida, (2) UC-Riverside)
Semileptonic decays, magnetic moments and spin distributions of spin-1/2 baryons with sea contribution
To be published in Int. J. of Mod. Phys. A
Int.J.Mod.Phys. A13 (1998) 4195-4212
10.1142/S0217751X98001992
IJMPA/HE/RS/98/0028
hep-ph
null
Spin-1/2 baryons are considered as a composite system made out of a "core" of three quarks surrounded by a "sea" (of gluons and $q\bar{q}$-pairs) which is specified by its total quantum numbers. Specifically, we assume this sea to be a flavor octet with spin-0 or 1 but no color. We show our model can provide very goo...
[ { "created": "Thu, 12 Mar 1998 02:28:22 GMT", "version": "v1" } ]
2009-10-31
[ [ "Gupta", "V.", "" ], [ "Huerta", "R.", "" ], [ "Sanchez-Colon", "G.", "" ] ]
Spin-1/2 baryons are considered as a composite system made out of a "core" of three quarks surrounded by a "sea" (of gluons and $q\bar{q}$-pairs) which is specified by its total quantum numbers. Specifically, we assume this sea to be a flavor octet with spin-0 or 1 but no color. We show our model can provide very goods...
2203.09112
John Terry
Mishary Alrashed, Daniele Anderle, Zhong-Bo Kang, John Terry, and Hongxi Xing
Nuclear Modified Transverse Momentum Distributions and 3D Imaging in Nuclei
Spin2021 Conference Proceeding; 5 pages, 2 figures
null
10.7566/JPSCP.37.020126
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this proceeding, we review our recent work in which we performed the first global analysis of nuclear modified Transverse Momentum Distribution Functions (TMDs). We demonstrate for the first time that the global set of TMD experimental data from HERMES, E866, E772, RHIC, ATLAS, and CMS, can be described using a si...
[ { "created": "Thu, 17 Mar 2022 06:34:43 GMT", "version": "v1" } ]
2023-01-18
[ [ "Alrashed", "Mishary", "" ], [ "Anderle", "Daniele", "" ], [ "Kang", "Zhong-Bo", "" ], [ "Terry", "John", "" ], [ "Xing", "Hongxi", "" ] ]
In this proceeding, we review our recent work in which we performed the first global analysis of nuclear modified Transverse Momentum Distribution Functions (TMDs). We demonstrate for the first time that the global set of TMD experimental data from HERMES, E866, E772, RHIC, ATLAS, and CMS, can be described using a simp...
2209.06795
Tania Robens
Tania Robens
Di-Higgs production in BSM models
6 pages, 4 figures, contribution to the proceedings of "The Tenth Annual Conference on Large Hadron Collider Physics" (LHCP2022); v2: Some comments added regarding EFT benchmark clusters. Corresponds to accepted proceedings version
PoS(LHCP2022)221
null
RBI-ThPhys-2022-34
hep-ph
http://creativecommons.org/licenses/by/4.0/
I give a short overview on di-Higgs productions in models that extend the Standard Model of particle physics by additional fields and particle content, including EFT prescriptions.
[ { "created": "Wed, 14 Sep 2022 17:26:53 GMT", "version": "v1" }, { "created": "Wed, 11 Jan 2023 14:32:55 GMT", "version": "v2" } ]
2023-01-12
[ [ "Robens", "Tania", "" ] ]
I give a short overview on di-Higgs productions in models that extend the Standard Model of particle physics by additional fields and particle content, including EFT prescriptions.
hep-ph/0607103
Werner Rodejohann
Kathrin A. Hochmuth, Werner Rodejohann
Low and High Energy Phenomenology of Quark-Lepton Complementarity Scenarios
32 pages, 9 figures. Discussion on leptogenesis changed due to inclusion of flavor effects. To appear in PRD
Phys.Rev.D75:073001,2007
10.1103/PhysRevD.75.073001
MPP-2006-83, TUM-HEP-638/06
hep-ph
null
We conduct a detailed analysis of the phenomenology of two predictive see-saw scenarios leading to Quark-Lepton Complementarity. In both cases we discuss the neutrino mixing observables and their correlations, neutrinoless double beta decay and lepton flavor violating decays such as mu -> e gamma. We also comment on ...
[ { "created": "Mon, 10 Jul 2006 13:09:06 GMT", "version": "v1" }, { "created": "Tue, 11 Jul 2006 09:37:59 GMT", "version": "v2" }, { "created": "Tue, 24 Oct 2006 14:33:27 GMT", "version": "v3" }, { "created": "Fri, 16 Mar 2007 12:42:56 GMT", "version": "v4" } ]
2008-11-26
[ [ "Hochmuth", "Kathrin A.", "" ], [ "Rodejohann", "Werner", "" ] ]
We conduct a detailed analysis of the phenomenology of two predictive see-saw scenarios leading to Quark-Lepton Complementarity. In both cases we discuss the neutrino mixing observables and their correlations, neutrinoless double beta decay and lepton flavor violating decays such as mu -> e gamma. We also comment on le...
1611.04811
Francesco Giovanni Celiberto
Francesco G. Celiberto, Dmitry Yu. Ivanov, Beatrice Murdaca, Alessandro Papa
Dihadron Production at LHC: BFKL Predictions for Cross Sections and Azimuthal Correlations
4 pages, 2 figures; presented by F.G. Celiberto at "Diffraction 2016", International Workshop on Diffraction in High-Energy Physics, Acireale (Catania, Sicily), Sept. 2-8, 2016; to be published in the conference proceedings by AIP
null
10.1063/1.4977161
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A study of the inclusive production of a pair of hadrons (a "dihadron" system), having high transverse momenta and separated by a large interval of rapidity, is presented. This process has much in common with the widely discussed Mueller--Navelet jet production and can be also used to access the BFKL dynamics at prot...
[ { "created": "Tue, 15 Nov 2016 12:56:51 GMT", "version": "v1" }, { "created": "Sun, 22 Jan 2017 16:42:39 GMT", "version": "v2" } ]
2017-04-05
[ [ "Celiberto", "Francesco G.", "" ], [ "Ivanov", "Dmitry Yu.", "" ], [ "Murdaca", "Beatrice", "" ], [ "Papa", "Alessandro", "" ] ]
A study of the inclusive production of a pair of hadrons (a "dihadron" system), having high transverse momenta and separated by a large interval of rapidity, is presented. This process has much in common with the widely discussed Mueller--Navelet jet production and can be also used to access the BFKL dynamics at proton...
2210.13496
Julian Heeck
Jon Butterworth, Julian Heeck, Si Hyun Jeon, Olivier Mattelaer, Richard Ruiz
Testing the Scalar Triplet Solution to CDF's Fat $W$ Problem at the LHC
8 pages (incl. refs.), 3 figures; minor clarifications, matches published version
Phys. Rev. D 107, 075020 (2023)
10.1103/PhysRevD.107.075020
IRMP-CP3-22-47, IFJPAN-IV-2022-15, MCNET-22
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
The Type II Seesaw model remains a popular and viable explanation of neutrino masses and mixing angles. By hypothesizing the existence of a scalar that is a triplet under the weak gauge interaction, the model predicts strong correlations among neutrino oscillation parameters, signals at lepton flavor experiments, and...
[ { "created": "Mon, 24 Oct 2022 18:00:07 GMT", "version": "v1" }, { "created": "Thu, 27 Apr 2023 16:37:22 GMT", "version": "v2" } ]
2023-04-28
[ [ "Butterworth", "Jon", "" ], [ "Heeck", "Julian", "" ], [ "Jeon", "Si Hyun", "" ], [ "Mattelaer", "Olivier", "" ], [ "Ruiz", "Richard", "" ] ]
The Type II Seesaw model remains a popular and viable explanation of neutrino masses and mixing angles. By hypothesizing the existence of a scalar that is a triplet under the weak gauge interaction, the model predicts strong correlations among neutrino oscillation parameters, signals at lepton flavor experiments, and c...
1406.4137
Luca Panizzi
Stephen F. King, Alexander Merle and Luca Panizzi
Effective theory of a doubly charged singlet scalar: complementarity of neutrino physics and the LHC
57 pages, 14 figures, 10 tables, version accepted for publication in JHEP
null
10.1007/JHEP11(2014)124
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider a rather minimal extension of the Standard Model involving just one extra particle, namely a single $SU(2)_L$ singlet scalar $S^{++}$ and its antiparticle $S^{--}$. We propose a model independent effective operator, which yields an effective coupling of $S^{\pm \pm}$ to pairs of same sign weak gauge boson...
[ { "created": "Mon, 16 Jun 2014 20:00:04 GMT", "version": "v1" }, { "created": "Tue, 11 Nov 2014 17:17:18 GMT", "version": "v2" } ]
2015-06-22
[ [ "King", "Stephen F.", "" ], [ "Merle", "Alexander", "" ], [ "Panizzi", "Luca", "" ] ]
We consider a rather minimal extension of the Standard Model involving just one extra particle, namely a single $SU(2)_L$ singlet scalar $S^{++}$ and its antiparticle $S^{--}$. We propose a model independent effective operator, which yields an effective coupling of $S^{\pm \pm}$ to pairs of same sign weak gauge bosons,...
1308.6522
Shao-Feng Ge
Andrew D. Hanlon, Shao-Feng Ge, Wayne W. Repko
Phenomenological Study of Residual Z^s_2 and Zbar^s_2 Symmetries
8 pages, 6 figures, references and figures updated
null
10.1016/j.physletb.2013.12.063
KEK-TH-1665
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The phenomenological consequences of the residual Z^s_2 and Zbar^s_2 symmetries are explored in detail. With a precisely measured value of the reactor angle, these two residual symmetries predict distinct distributions for the Dirac CP phase and the atmospheric angle, which leads to the possibility of identifying the...
[ { "created": "Thu, 29 Aug 2013 17:05:35 GMT", "version": "v1" }, { "created": "Fri, 6 Sep 2013 15:49:40 GMT", "version": "v2" } ]
2014-01-15
[ [ "Hanlon", "Andrew D.", "" ], [ "Ge", "Shao-Feng", "" ], [ "Repko", "Wayne W.", "" ] ]
The phenomenological consequences of the residual Z^s_2 and Zbar^s_2 symmetries are explored in detail. With a precisely measured value of the reactor angle, these two residual symmetries predict distinct distributions for the Dirac CP phase and the atmospheric angle, which leads to the possibility of identifying them ...
hep-ph/9411230
null
H. Liebl and Gary R. Goldstein
Electromagnetic Polarizabilities and Charge Radii of the Nucleons in the Diquark-model
15 Pages, Latex, Figs on request, to be published Phys.Lett.B. Minor errors corrected and eqn 5,6,8,9 corrected
Phys.Lett. B343 (1995) 363-368
10.1016/0370-2693(94)01464-N
TUFTS-TH-94-G01
hep-ph
null
The diquark model is used to calculate the electromagnetic polarizabilities and charge radii of the nucleons for three different potentials. Making the scalar diquark lower in mass introduces a mixing angle $\theta $ between the $\left| 56\right\rangle $ and $\left| 70\right\rangle $ states ,which allows an improveme...
[ { "created": "Sat, 5 Nov 1994 19:39:35 GMT", "version": "v1" }, { "created": "Wed, 9 Nov 1994 22:03:09 GMT", "version": "v2" } ]
2009-10-28
[ [ "Liebl", "H.", "" ], [ "Goldstein", "Gary R.", "" ] ]
The diquark model is used to calculate the electromagnetic polarizabilities and charge radii of the nucleons for three different potentials. Making the scalar diquark lower in mass introduces a mixing angle $\theta $ between the $\left| 56\right\rangle $ and $\left| 70\right\rangle $ states ,which allows an improvement...
hep-ph/9508374
Oleg Teryaev
O.V. Teryaev
Relations between Spin Structure Functions and Quark Mass Corrections to Bjorken Sum Rule
LATEX, 7 pages, Contribution to 'Deuteron-95' International Symposium (JINR, Dubna, Russia, July 4-7, 1995)
null
null
null
hep-ph
null
The power correction, surviving the zero quark mass limit and found earlier to restore the validity of Burkhardt-Cottingham sum rule, provides the contribution to the Bjorken sum rule as well. The leading perturbative correction to the Bjorken sum rule is increased by the factor 4/3 for light quarks and 5/3 for heavy...
[ { "created": "Sat, 26 Aug 1995 16:29:47 GMT", "version": "v1" } ]
2007-05-23
[ [ "Teryaev", "O. V.", "" ] ]
The power correction, surviving the zero quark mass limit and found earlier to restore the validity of Burkhardt-Cottingham sum rule, provides the contribution to the Bjorken sum rule as well. The leading perturbative correction to the Bjorken sum rule is increased by the factor 4/3 for light quarks and 5/3 for heavy q...
1502.00925
Malgorzata Worek
M. Czakon, H. B. Hartanto, M. Kraus, M. Worek
Matching the Nagy-Soper parton shower at next-to-leading order
53 pages, 18 figures, 3 tables. References and a few typos corrected, acknowledgments added, dependence on the variation of the starting shower time corrected, version to appear in JHEP
JHEP 1506 (2015) 033
10.1007/JHEP06(2015)033
TTK-15-7
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present an MC@NLO-like matching of next-to-leading order QCD calculations with the Nagy-Soper parton shower. An implementation of the algorithm within the HELAC-DIPOLES Monte Carlo generator is used to address the uncertainties and ambiguities of the matching scheme. First results obtained using the Nagy-Soper par...
[ { "created": "Tue, 3 Feb 2015 16:53:14 GMT", "version": "v1" }, { "created": "Wed, 20 May 2015 09:17:35 GMT", "version": "v2" }, { "created": "Fri, 12 Jun 2015 10:39:17 GMT", "version": "v3" } ]
2015-06-15
[ [ "Czakon", "M.", "" ], [ "Hartanto", "H. B.", "" ], [ "Kraus", "M.", "" ], [ "Worek", "M.", "" ] ]
We present an MC@NLO-like matching of next-to-leading order QCD calculations with the Nagy-Soper parton shower. An implementation of the algorithm within the HELAC-DIPOLES Monte Carlo generator is used to address the uncertainties and ambiguities of the matching scheme. First results obtained using the Nagy-Soper parto...
2112.13702
Bo-Lin Huang
Bo-Lin Huang, Zi-Yang Lin, Shi-Lin Zhu
Light pseudoscalar meson and heavy meson scattering lengths to $\mathcal{O}(p^4)$ in heavy meson chiral perturbation theory
21 pages, 3 figures, 12 tables
Phys. Rev. D 105, 036016 (2022)
10.1103/PhysRevD.105.036016
null
hep-ph hep-ex hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the threshold $T$ matrices of the light pseudoscalar meson and heavy meson scattering to fourth order in heavy meson chiral perturbation theory. We determine the low-energy constants by fitting to the lattice QCD data points through both the perturbative and iterated methods and obtain the physical scatt...
[ { "created": "Mon, 27 Dec 2021 14:21:59 GMT", "version": "v1" }, { "created": "Sat, 26 Feb 2022 07:05:22 GMT", "version": "v2" } ]
2022-03-01
[ [ "Huang", "Bo-Lin", "" ], [ "Lin", "Zi-Yang", "" ], [ "Zhu", "Shi-Lin", "" ] ]
We calculate the threshold $T$ matrices of the light pseudoscalar meson and heavy meson scattering to fourth order in heavy meson chiral perturbation theory. We determine the low-energy constants by fitting to the lattice QCD data points through both the perturbative and iterated methods and obtain the physical scatter...
1110.4787
Piotr Lebiedowicz
Piotr Lebiedowicz, Antoni Szczurek
$pp \to pp K^{+}K^{-}$ reaction at high energies
20 pages, 16 figures. text has been corrected and supplemented, cross section for forward/backward mechanisms has been corrected. arXiv admin note: substantial text overlap with arXiv:1103.5642
Phys. Rev. D85 (2012) 014026
10.1103/PhysRevD.85.014026
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We evaluate differential distributions for the four-body $p p \to p p K^{+} K^{-}$ reaction at high energies which constitutes an irreducible background to three-body processes $p p \to p p M$, where $M=\phi$, $f_{2}(1275)$, $f_{0}(1500)$, $f_{2}'(1525)$, $\chi_{c0}$. We consider central diffractive contribution medi...
[ { "created": "Fri, 21 Oct 2011 13:29:06 GMT", "version": "v1" }, { "created": "Fri, 11 Nov 2011 12:45:46 GMT", "version": "v2" } ]
2012-12-18
[ [ "Lebiedowicz", "Piotr", "" ], [ "Szczurek", "Antoni", "" ] ]
We evaluate differential distributions for the four-body $p p \to p p K^{+} K^{-}$ reaction at high energies which constitutes an irreducible background to three-body processes $p p \to p p M$, where $M=\phi$, $f_{2}(1275)$, $f_{0}(1500)$, $f_{2}'(1525)$, $\chi_{c0}$. We consider central diffractive contribution mediat...
0812.2468
Fred Myhrer
F. Myhrer
The spin content of the proton
6 pages, 1 figure, invited talk at SPIN2008
AIP Conf.Proc.1149:325-330,2009
10.1063/1.3215657
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Considerable progress has been made in our knowledge of the spin distribution within the proton. The recently measured limits on polarized gluons in the proton suggest polarized gluons contribute very modestly to the proton spin. We will show that a modern, relativistic and chirally symmetric description of the nucle...
[ { "created": "Fri, 12 Dec 2008 20:22:03 GMT", "version": "v1" } ]
2009-08-24
[ [ "Myhrer", "F.", "" ] ]
Considerable progress has been made in our knowledge of the spin distribution within the proton. The recently measured limits on polarized gluons in the proton suggest polarized gluons contribute very modestly to the proton spin. We will show that a modern, relativistic and chirally symmetric description of the nucleon...
1905.05330
Chunsheng An
C. S. An and B. Saghai
Orbital angular momentum of the proton and intrinsic five-quark Fock states
typos corrected
Phys. Rev. D 99, 094039 (2019)
10.1103/PhysRevD.99.094039
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The orbital angular momentum ($L_q$) of the proton is studied by employing the extended constituent quark model. Contributions from different flavors, namely, up, down, strange, and charm quarks in the proton are investigated. Probabilities of the intrinsic $q\bar{q}$ pairs are calculated using a $^{3}P_{0}$ transiti...
[ { "created": "Tue, 14 May 2019 00:53:49 GMT", "version": "v1" }, { "created": "Mon, 27 May 2019 00:26:17 GMT", "version": "v2" } ]
2019-06-05
[ [ "An", "C. S.", "" ], [ "Saghai", "B.", "" ] ]
The orbital angular momentum ($L_q$) of the proton is studied by employing the extended constituent quark model. Contributions from different flavors, namely, up, down, strange, and charm quarks in the proton are investigated. Probabilities of the intrinsic $q\bar{q}$ pairs are calculated using a $^{3}P_{0}$ transition...
hep-ph/9409237
PostDoc Its
Xiao-Gang He
A Light $Z'$ Boson
7pages, REvtex, OITS-549
null
null
null
hep-ph
null
A model of a light $Z'$ boson based on gauged $L_\mu - L_\tau$ $U(1)$ symmetry is constructed. The $Z'$ boson mass is constrained to be in the range of 0.8 to 1 GeV from Z and $Z'$ mass relation, g-2 of muon, and tau decays. The two body decay $\tau \rightarrow \mu Z'$ is possible. This will provide a striking signat...
[ { "created": "Tue, 6 Sep 1994 18:01:29 GMT", "version": "v1" } ]
2007-05-23
[ [ "He", "Xiao-Gang", "" ] ]
A model of a light $Z'$ boson based on gauged $L_\mu - L_\tau$ $U(1)$ symmetry is constructed. The $Z'$ boson mass is constrained to be in the range of 0.8 to 1 GeV from Z and $Z'$ mass relation, g-2 of muon, and tau decays. The two body decay $\tau \rightarrow \mu Z'$ is possible. This will provide a striking signatur...
hep-ph/9312327
Marie-Christine Harent
Eduardo de Rafael
Chiral Perturbation Theory
16 pages, CPT-93/P.2967
Nuovo Cim.A107:2573-2584,1994
10.1007/BF02734032
null
hep-ph
null
The basic ideas and some recent developments of the chiral perturbation theory approach to hadron dynamics at low-energies are reviewed. (Invited talk at the HADRON'93 Conference Como, Italy June 1993.)
[ { "created": "Wed, 22 Dec 1993 18:29:25 GMT", "version": "v1" }, { "created": "Wed, 5 Jan 1994 18:17:01 GMT", "version": "v2" } ]
2011-04-20
[ [ "de Rafael", "Eduardo", "" ] ]
The basic ideas and some recent developments of the chiral perturbation theory approach to hadron dynamics at low-energies are reviewed. (Invited talk at the HADRON'93 Conference Como, Italy June 1993.)
1505.07655
Salvatore Plumari Dr.
Paolo Castorina, Vincenzo Greco, Salvatore Plumari
QCD Equation of State and Cosmological Parameters in Early Universe
null
Phys. Rev. D 92, 063530 (2015)
10.1103/PhysRevD.92.063530
null
hep-ph astro-ph.CO nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The time evolution of cosmological parameters in early Universe at the deconfinement transition is studied by an equation of state (EoS) which takes into account the finite baryon density and the background magnetic field. The non perturbative dynamics is described by the Field Correlator Method (FCM) which gives, wi...
[ { "created": "Thu, 28 May 2015 11:43:37 GMT", "version": "v1" } ]
2015-09-30
[ [ "Castorina", "Paolo", "" ], [ "Greco", "Vincenzo", "" ], [ "Plumari", "Salvatore", "" ] ]
The time evolution of cosmological parameters in early Universe at the deconfinement transition is studied by an equation of state (EoS) which takes into account the finite baryon density and the background magnetic field. The non perturbative dynamics is described by the Field Correlator Method (FCM) which gives, with...
1801.03213
Wei-Jie Fu
Wei-jie Fu
Chiral criticality and glue dynamics
6 pages, 4 figures
null
10.1088/1674-1137/43/7/074101
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The chiral order-parameter $\sigma$ field and its higher-order cumulants of fluctuations are calculated within the functional renormalization group approach. The influence of the glue dynamics on the fluctuations of $\sigma$ field is investigated, and we find that the $\sigma$-field fluctuations are weakly affected b...
[ { "created": "Wed, 10 Jan 2018 02:03:19 GMT", "version": "v1" } ]
2019-09-04
[ [ "Fu", "Wei-jie", "" ] ]
The chiral order-parameter $\sigma$ field and its higher-order cumulants of fluctuations are calculated within the functional renormalization group approach. The influence of the glue dynamics on the fluctuations of $\sigma$ field is investigated, and we find that the $\sigma$-field fluctuations are weakly affected by ...
hep-ph/9808302
Sanghyeon Chang
S. Chang, C. Hagmann and P. Sikivie
Axions from wall decay
6 pages, 7 figures, to be published in the Proc. of the 5th IFT Axion workshop Gainesville FL, Mar 13-15 1998
Nucl.Phys.Proc.Suppl. 72 (1999) 99-104
10.1016/S0920-5632(98)00510-6
null
hep-ph
null
We discuss the decay of axion walls bounded by strings and present numerical simulations of the decay process. In these simulations, the decay happens immediately, in a time scale of order the light travel time, and the average energy of the radiated axions is $<\omega_a > \simeq 7 m_a$ for $v_a/m_a\simeq 500$. $<\om...
[ { "created": "Tue, 11 Aug 1998 20:04:34 GMT", "version": "v1" } ]
2009-10-31
[ [ "Chang", "S.", "" ], [ "Hagmann", "C.", "" ], [ "Sikivie", "P.", "" ] ]
We discuss the decay of axion walls bounded by strings and present numerical simulations of the decay process. In these simulations, the decay happens immediately, in a time scale of order the light travel time, and the average energy of the radiated axions is $<\omega_a > \simeq 7 m_a$ for $v_a/m_a\simeq 500$. $<\omeg...
hep-ph/0301059
Pelaez
Stefania De Curtis (1), Daniele Dominici (1), Jose R. Pelaez (1, 2) ((1) Univ. & INFN Florence, Italy; (2)Univ. Complutense, Madrid, Spain)
Strong tree level unitarity violations in the extra dimensional Standard Model with scalars in the bulk
Version to appear in Phys. Rev. D Typos corrected and remarks added to clarify figures
Phys.Rev. D67 (2003) 076010
10.1103/PhysRevD.67.076010
null
hep-ph
null
We show how the tree level unitarity violations of compactified extra dimensional extensions of the Standard Model become much stronger when the scalar sector is included in the bulk. This effect occurs when the couplings are not suppressed for larger Kaluza-Klein levels, and could have relevant consequences for the ...
[ { "created": "Thu, 9 Jan 2003 15:28:44 GMT", "version": "v1" }, { "created": "Mon, 14 Apr 2003 11:35:17 GMT", "version": "v2" } ]
2009-11-10
[ [ "De Curtis", "Stefania", "", "Univ. & INFN Florence, Italy;" ], [ "Dominici", "Daniele", "", "Univ. & INFN Florence, Italy;" ], [ "Pelaez", "Jose R.", "", "Univ. & INFN Florence, Italy;" ] ]
We show how the tree level unitarity violations of compactified extra dimensional extensions of the Standard Model become much stronger when the scalar sector is included in the bulk. This effect occurs when the couplings are not suppressed for larger Kaluza-Klein levels, and could have relevant consequences for the ph...
hep-ph/0108029
Per Osland
Erik Dvergsnes, Per Osland, Nurcan Ozturk
Characteristics of graviton-induced bremsstrahlung
14 pages, including 5 figures
null
null
null
hep-ph
null
We discuss Bremsstrahlung induced by graviton exchange in proton-proton interactions at hadronic colliders, resulting from gg\to G\to \mu^+\mu^-\gamma. Both the ADD and RS scenarios are discussed. Due to the coupling of the graviton to two photons, the cross section has a new kinematical singularity for hard photons....
[ { "created": "Fri, 3 Aug 2001 06:36:23 GMT", "version": "v1" } ]
2007-05-23
[ [ "Dvergsnes", "Erik", "" ], [ "Osland", "Per", "" ], [ "Ozturk", "Nurcan", "" ] ]
We discuss Bremsstrahlung induced by graviton exchange in proton-proton interactions at hadronic colliders, resulting from gg\to G\to \mu^+\mu^-\gamma. Both the ADD and RS scenarios are discussed. Due to the coupling of the graviton to two photons, the cross section has a new kinematical singularity for hard photons. T...
0801.1651
Pearl Sandick
John Ellis, Keith A. Olive, and Pearl Sandick
Sparticle Discovery Potentials in the CMSSM and GUT-less Supersymmetry-Breaking Scenarios
20 pages, 6 figures; Update to Fig. 4, references added
JHEP 0808:013,2008
10.1088/1126-6708/2008/08/013
CERN-PH-TH/2008-004, UMN-TH-2630/08, FTPI-MINN-08/01
hep-ph astro-ph hep-ex
null
We consider the potentials of the LHC and a linear e^+e^- collider (LC) for discovering supersymmetric particles in variants of the MSSM with soft supersymmetry-breaking mass parameters constrained to be universal at the GUT scale (CMSSM) or at some lower scale M_{in} (GUT-less models), as may occur in some scenarios...
[ { "created": "Thu, 10 Jan 2008 18:27:49 GMT", "version": "v1" }, { "created": "Tue, 15 Jan 2008 20:22:20 GMT", "version": "v2" } ]
2009-09-11
[ [ "Ellis", "John", "" ], [ "Olive", "Keith A.", "" ], [ "Sandick", "Pearl", "" ] ]
We consider the potentials of the LHC and a linear e^+e^- collider (LC) for discovering supersymmetric particles in variants of the MSSM with soft supersymmetry-breaking mass parameters constrained to be universal at the GUT scale (CMSSM) or at some lower scale M_{in} (GUT-less models), as may occur in some scenarios w...
1310.1730
Thomas Gajdosik
Adomas Jelinskas
Predicting \tau-lepton polarization at the LHC
Master's thesis in Lithuanian language; 65 pages; uses feyarts.sty
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This is a master's thesis and it is written in Lithuanian language. The goal of this thesis is to predict the polarization of a \tau-particle produced at the LHC and coming from a real W boson. This is achieved by calculating the projection of the expectation value of the polarization vector of the \tau-particle. C...
[ { "created": "Mon, 7 Oct 2013 10:58:56 GMT", "version": "v1" } ]
2013-10-08
[ [ "Jelinskas", "Adomas", "" ] ]
This is a master's thesis and it is written in Lithuanian language. The goal of this thesis is to predict the polarization of a \tau-particle produced at the LHC and coming from a real W boson. This is achieved by calculating the projection of the expectation value of the polarization vector of the \tau-particle. Calcu...
2102.10118
Xiao-Ping Wang
Jia Liu, Navin McGinnis, Carlos E.M. Wagner, Xiao-Ping Wang
Challenges for a QCD Axion at the 10 MeV Scale
30 pages, 4 figures, 1 table
JHEP05(2021)138
10.1007/JHEP05(2021)138
EFI-21-2
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We report on an interesting realization of the QCD axion, with mass in the range $\mathcal{O}(10)$ MeV. It has previously been shown that although this scenario is stringently constrained from multiple sources, the model remains viable for a range of parameters that leads to an explanation of the Atomki experiment an...
[ { "created": "Fri, 19 Feb 2021 19:00:03 GMT", "version": "v1" }, { "created": "Thu, 13 May 2021 09:40:49 GMT", "version": "v2" } ]
2021-05-18
[ [ "Liu", "Jia", "" ], [ "McGinnis", "Navin", "" ], [ "Wagner", "Carlos E. M.", "" ], [ "Wang", "Xiao-Ping", "" ] ]
We report on an interesting realization of the QCD axion, with mass in the range $\mathcal{O}(10)$ MeV. It has previously been shown that although this scenario is stringently constrained from multiple sources, the model remains viable for a range of parameters that leads to an explanation of the Atomki experiment anom...
1206.5191
Jan L\"ucker
Christian S. Fischer, Jan Luecker
Propagators and phase structure of Nf=2 and Nf=2+1 QCD
11 pages, 9 figures, 1 table
Phys.Lett. B718 (2013) 1036-1043
10.1016/j.physletb.2012.11.054
null
hep-ph hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the phase structure of QCD at finite temperature and chemical potential by solving a coupled set of truncated Dyson-Schwinger equations for the quark and gluon propagator. In contrast to previous calculations we take into account the full back-reaction of the quarks onto the Yang-Mills sector and we in...
[ { "created": "Fri, 22 Jun 2012 16:12:45 GMT", "version": "v1" }, { "created": "Wed, 30 Jan 2013 15:46:27 GMT", "version": "v2" } ]
2013-01-31
[ [ "Fischer", "Christian S.", "" ], [ "Luecker", "Jan", "" ] ]
We investigate the phase structure of QCD at finite temperature and chemical potential by solving a coupled set of truncated Dyson-Schwinger equations for the quark and gluon propagator. In contrast to previous calculations we take into account the full back-reaction of the quarks onto the Yang-Mills sector and we incl...
hep-ph/9911413
Jiri Chyla
Jiri Chyla
When semantics turns to substance: reformulating QCD analysis of F_2^{\gamma}(x,Q^2)}
24 pages, Latex, 7 encapsulated eps figures. Extended and substantially updated version of an earlier contribution hep-ph/9811455 Minor reformulation of the abstract
JHEP 0004 (2000) 007
10.1088/1126-6708/2000/04/007
PRA-HEP/99-05
hep-ph
null
QCD analysis of F_2^{\gamma}(x,Q^2) is revisited. It is emphasized that the presence of the inhomogeneous term in the evolution equations for quark distribution functions of the photon implies important difference in the way factorization mechanism works in photon-hadron and photon-photon collisions as compared to th...
[ { "created": "Fri, 19 Nov 1999 16:53:59 GMT", "version": "v1" }, { "created": "Mon, 22 Nov 1999 14:40:21 GMT", "version": "v2" } ]
2009-10-31
[ [ "Chyla", "Jiri", "" ] ]
QCD analysis of F_2^{\gamma}(x,Q^2) is revisited. It is emphasized that the presence of the inhomogeneous term in the evolution equations for quark distribution functions of the photon implies important difference in the way factorization mechanism works in photon-hadron and photon-photon collisions as compared to the ...
hep-ph/0207256
Hyun Kyu Lee
Hyun Kyu Lee (Hanyang University)
Thermodynamic constraint on the primordial black hole formation in the radiation dominated epoch
6 pages, accepted for publication in PRD
Phys.Rev. D66 (2002) 063001
10.1103/PhysRevD.66.063001
null
hep-ph gr-qc
null
It has been suggested that the overdense region as a result of inhomogeneities in the early Universe would have undergone a collapse into the primordial black holes(PBH). In this work, we discuss a possible constraint on the PBH formation in the radiation dominated epoch by imposing the generalized second law of ther...
[ { "created": "Mon, 22 Jul 2002 05:23:29 GMT", "version": "v1" } ]
2009-11-07
[ [ "Lee", "Hyun Kyu", "", "Hanyang University" ] ]
It has been suggested that the overdense region as a result of inhomogeneities in the early Universe would have undergone a collapse into the primordial black holes(PBH). In this work, we discuss a possible constraint on the PBH formation in the radiation dominated epoch by imposing the generalized second law of thermo...
0912.4731
Graham D. Kribs
Graham D. Kribs, Adam Martin, Tuhin S. Roy, Michael Spannowsky
Discovering the Higgs Boson in New Physics Events using Jet Substructure
6 pages, 2 figures
Phys.Rev.D81:111501,2010
10.1103/PhysRevD.81.111501
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a novel method to discover the Higgs boson in new physics event samples at the LHC. Our technique applies to broad classes of models where the Higgs has a significant branching fraction to b-bbar. We exploit the recently developed techniques for discovering a boosted Higgs using jet substructure. Our requi...
[ { "created": "Wed, 23 Dec 2009 21:00:10 GMT", "version": "v1" } ]
2014-11-20
[ [ "Kribs", "Graham D.", "" ], [ "Martin", "Adam", "" ], [ "Roy", "Tuhin S.", "" ], [ "Spannowsky", "Michael", "" ] ]
We present a novel method to discover the Higgs boson in new physics event samples at the LHC. Our technique applies to broad classes of models where the Higgs has a significant branching fraction to b-bbar. We exploit the recently developed techniques for discovering a boosted Higgs using jet substructure. Our require...
0710.4456
Andreas Fuhrer
M. Bissegger, A. Fuhrer, J. Gasser, B. Kubis, A. Rusetsky
Cusps in K_L --> 3 pi decays
15 pages, 3 figures, uses Elsevier style
Phys.Lett.B659:576-584,2008
10.1016/j.physletb.2007.11.008
preprint HISKP-TH-07/24 (University of Bonn)
hep-ph
null
The pion mass difference generates a pronounced cusp in K --> 3 pi decays, the strength of which is related to the pi pi S-wave scattering lengths. We apply an effective field theory framework developed earlier to evaluate the amplitudes for K_L --> 3 pi decays in a systematic manner, where the strictures imposed by ...
[ { "created": "Wed, 24 Oct 2007 13:09:59 GMT", "version": "v1" } ]
2008-11-26
[ [ "Bissegger", "M.", "" ], [ "Fuhrer", "A.", "" ], [ "Gasser", "J.", "" ], [ "Kubis", "B.", "" ], [ "Rusetsky", "A.", "" ] ]
The pion mass difference generates a pronounced cusp in K --> 3 pi decays, the strength of which is related to the pi pi S-wave scattering lengths. We apply an effective field theory framework developed earlier to evaluate the amplitudes for K_L --> 3 pi decays in a systematic manner, where the strictures imposed by an...
1507.03630
Rachid Benbrik
Abdesslam Arhrib, Rachid Benbrik, Jaouad El Falaki, Adil Jueid
Radiative corrections to the Triple Higgs Coupling in the Inert Higgs Doublet Model
25 pages, 10 figures
null
10.1007/JHEP12(2015)007
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the implication of the recent discovery of a Higgs-like particle in the first phase of the LHC Run 1 on the Inert Higgs Doublet Model (IHDM). The determination of the Higgs couplings to SM particles and its intrinsic properties will get improved during the new LHC Run 2 starting this year. The new LHC ...
[ { "created": "Mon, 13 Jul 2015 21:46:28 GMT", "version": "v1" } ]
2016-01-27
[ [ "Arhrib", "Abdesslam", "" ], [ "Benbrik", "Rachid", "" ], [ "Falaki", "Jaouad El", "" ], [ "Jueid", "Adil", "" ] ]
We investigate the implication of the recent discovery of a Higgs-like particle in the first phase of the LHC Run 1 on the Inert Higgs Doublet Model (IHDM). The determination of the Higgs couplings to SM particles and its intrinsic properties will get improved during the new LHC Run 2 starting this year. The new LHC Ru...
1907.08358
Waleed Abdallah
W. Abdallah, A. Hammad, S. Khalil, S. Moretti
Dark Matter Spin Characterisation in Mono-$Z$ Channels
6 pages, 6 figures, 2 tables, Fig. 5 and table 2 have been added. Final results and conclusions unchanged. Version to appear in PRD
Phys. Rev. D 100, 095006 (2019)
10.1103/PhysRevD.100.095006
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The $B-L$ Supersymmetric Standard Model (BLSSM) is an ideal testing ground of the spin nature of Dark Matter (DM) as it offers amongst its candidates both a spin-1/2 (the lightest neutralino) and spin-0 (the lightest right-handed sneutrino) state. We show that the mono-$Z$ channel can be used at the Large Hadron Coll...
[ { "created": "Fri, 19 Jul 2019 03:15:22 GMT", "version": "v1" }, { "created": "Fri, 8 Nov 2019 17:03:26 GMT", "version": "v2" } ]
2019-11-11
[ [ "Abdallah", "W.", "" ], [ "Hammad", "A.", "" ], [ "Khalil", "S.", "" ], [ "Moretti", "S.", "" ] ]
The $B-L$ Supersymmetric Standard Model (BLSSM) is an ideal testing ground of the spin nature of Dark Matter (DM) as it offers amongst its candidates both a spin-1/2 (the lightest neutralino) and spin-0 (the lightest right-handed sneutrino) state. We show that the mono-$Z$ channel can be used at the Large Hadron Collid...
hep-ph/0110387
Raghavan Rangarajan
Rathin Adhikari (1) and Raghavan Rangarajan (2) ((1) Jagadis Bose National Science Talent Search, Kolkota (Calcutta), India (2) Physical Research Laboratory, Ahmedabad, India)
Baryon Number Violation in Particle Decays
7 pages, Revtex, 3 eps figures
Phys.Rev. D65 (2002) 083504
10.1103/PhysRevD.65.083504
null
hep-ph
null
It has been argued in the past that in baryogenesis via out-of-equilibrium decays one must consider loop diagrams that contain more than one baryon number violating coupling. In this note we argue that the requirement with regard to baryon number violating couplings in loop diagrams is that the interaction between th...
[ { "created": "Tue, 30 Oct 2001 12:52:07 GMT", "version": "v1" } ]
2009-11-07
[ [ "Adhikari", "Rathin", "" ], [ "Rangarajan", "Raghavan", "" ] ]
It has been argued in the past that in baryogenesis via out-of-equilibrium decays one must consider loop diagrams that contain more than one baryon number violating coupling. In this note we argue that the requirement with regard to baryon number violating couplings in loop diagrams is that the interaction between the ...
hep-ph/0005041
Daniel R. Tovey
D. R. Tovey, R. J. Gaitskell, P. Gondolo, Y. Ramachers, L. Roszkowski
A New Model-Independent Method for Extracting Spin-Dependent Cross Section Limits from Dark Matter Searches
15 pages, 6 Encapsulated Postscript figures
Phys.Lett. B488 (2000) 17-26
10.1016/S0370-2693(00)00846-7
SHEF-HEP/00-2, MPI-PhT/2000-16
hep-ph
null
A new method is proposed for extracting limits on spin-dependent WIMP-nucleon interaction cross sections from direct detection dark matter experiments. The new method has the advantage that the limits on individual WIMP-proton and WIMP-neutron cross sections for a given WIMP mass can be combined in a simple way to gi...
[ { "created": "Thu, 4 May 2000 18:16:17 GMT", "version": "v1" } ]
2009-10-31
[ [ "Tovey", "D. R.", "" ], [ "Gaitskell", "R. J.", "" ], [ "Gondolo", "P.", "" ], [ "Ramachers", "Y.", "" ], [ "Roszkowski", "L.", "" ] ]
A new method is proposed for extracting limits on spin-dependent WIMP-nucleon interaction cross sections from direct detection dark matter experiments. The new method has the advantage that the limits on individual WIMP-proton and WIMP-neutron cross sections for a given WIMP mass can be combined in a simple way to give...
1911.05090
Simone Marzani
Andrew Larkoski, Simone Marzani, and Chang Wu
Safe Use of Jet Pull
21 pages, 6 figures. Version accepted for publication
JHEP 01 (2020) 104
10.1007/JHEP01(2020)104
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Jet pull is an observable designed to probe colour flow between jets. Thus far, a particular projection of the pull vector, the pull angle, has been employed to distinguish colour flow between jets produced by a colour singlet or an octet decay. This is of particular importance in order to separate the decay of a Hig...
[ { "created": "Tue, 12 Nov 2019 19:00:04 GMT", "version": "v1" }, { "created": "Mon, 20 Jan 2020 06:23:03 GMT", "version": "v2" } ]
2020-01-22
[ [ "Larkoski", "Andrew", "" ], [ "Marzani", "Simone", "" ], [ "Wu", "Chang", "" ] ]
Jet pull is an observable designed to probe colour flow between jets. Thus far, a particular projection of the pull vector, the pull angle, has been employed to distinguish colour flow between jets produced by a colour singlet or an octet decay. This is of particular importance in order to separate the decay of a Higgs...
1501.07275
Jonathan Kozaczuk
Jonathan Kozaczuk, Travis A. W. Martin
Extending LHC Coverage to Light Pseudoscalar Mediators and Coy Dark Sectors
27 pages + 3 appendices, 20 figures, 7 tables
null
10.1007/JHEP04(2015)046
null
hep-ph astro-ph.CO hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Many dark matter models involving weakly interacting massive particles (WIMPs) feature new, relatively light pseudoscalars that mediate dark matter pair annihilation into Standard Model fermions. In particular, simple models of this type can explain the gamma ray excess originating in the Galactic Center as observed ...
[ { "created": "Wed, 28 Jan 2015 21:00:11 GMT", "version": "v1" } ]
2015-06-23
[ [ "Kozaczuk", "Jonathan", "" ], [ "Martin", "Travis A. W.", "" ] ]
Many dark matter models involving weakly interacting massive particles (WIMPs) feature new, relatively light pseudoscalars that mediate dark matter pair annihilation into Standard Model fermions. In particular, simple models of this type can explain the gamma ray excess originating in the Galactic Center as observed by...
2112.14263
Olivier Lennon
Olivier Lennon
Multi-Field Q-balls with Real Scalars
14+2 pages
null
null
OUTP-21-30P
hep-ph hep-th
http://creativecommons.org/licenses/by/4.0/
Multi-field Q-balls, in which some, but not all, of the constituent fields are real scalars, are studied. Uncharged fields may classically contribute to Q-balls provided that their effect is to not destabilise the resulting object. The thin-wall limit is reviewed based on existing literature. Sufficient conditions fo...
[ { "created": "Tue, 28 Dec 2021 19:00:03 GMT", "version": "v1" } ]
2021-12-30
[ [ "Lennon", "Olivier", "" ] ]
Multi-field Q-balls, in which some, but not all, of the constituent fields are real scalars, are studied. Uncharged fields may classically contribute to Q-balls provided that their effect is to not destabilise the resulting object. The thin-wall limit is reviewed based on existing literature. Sufficient conditions for ...
1711.08353
Rainer Schicker M
R. Fiore, L. Jenkovszky and R. Schicker
Exclusive diffractive resonance production in proton-proton collisions at high energies
11 pages, 14 figures. arXiv admin note: text overlap with arXiv:1512.04977
Eur. Phys. J. C (2018) 78: 468
10.1140/epjc/s10052-018-5907-9
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A model for exclusive diffractive resonance production in proton-proton collisions at high energies is presented. This model is able to predict double differential distributions with respect to the mass and the transverse momentum of the produced resonance in the mass region $\sqrt{M^2}\le$5 GeV. The model is based o...
[ { "created": "Mon, 20 Nov 2017 23:21:31 GMT", "version": "v1" } ]
2018-06-13
[ [ "Fiore", "R.", "" ], [ "Jenkovszky", "L.", "" ], [ "Schicker", "R.", "" ] ]
A model for exclusive diffractive resonance production in proton-proton collisions at high energies is presented. This model is able to predict double differential distributions with respect to the mass and the transverse momentum of the produced resonance in the mass region $\sqrt{M^2}\le$5 GeV. The model is based on ...
hep-ph/0503087
Andreas Schaelicke
F. Krauss, A. Schaelicke, G. Soff
Apacic++ 2.0, A Parton Cascade In C++
42 pp
Comput.Phys.Commun.174:876-902,2006
10.1016/j.cpc.2005.11.009
null
hep-ph
null
The new version of the parton shower module APACIC++ for the SHERPA event generator framework is presented. It incorporates some features, that are specific for the consistent merging with multi-particle matrix elements at tree-level. This publication also includes some exemplary results and a short description of th...
[ { "created": "Wed, 9 Mar 2005 17:14:53 GMT", "version": "v1" } ]
2014-11-18
[ [ "Krauss", "F.", "" ], [ "Schaelicke", "A.", "" ], [ "Soff", "G.", "" ] ]
The new version of the parton shower module APACIC++ for the SHERPA event generator framework is presented. It incorporates some features, that are specific for the consistent merging with multi-particle matrix elements at tree-level. This publication also includes some exemplary results and a short description of the ...
hep-ph/0204088
B. L. G. Bakker
A.M. Badalian, B.L.G. Bakker, Yu.A. Simonov
Light meson radial Regge trajectories
25 pages, 1 figure
Phys.Rev.D66:034026,2002
10.1103/PhysRevD.66.034026
null
hep-ph hep-ex
null
A new physical mechanism is suggested to explain the universal depletion of high meson excitations. It takes into account the appearance of holes inside the string world sheet due to $q\bar{q}$ pair creation when the length of the string exceeds the critical value $R_1 \simeq 1.4$ fm. It is argued that a delicate bal...
[ { "created": "Mon, 8 Apr 2002 14:10:25 GMT", "version": "v1" } ]
2014-11-17
[ [ "Badalian", "A. M.", "" ], [ "Bakker", "B. L. G.", "" ], [ "Simonov", "Yu. A.", "" ] ]
A new physical mechanism is suggested to explain the universal depletion of high meson excitations. It takes into account the appearance of holes inside the string world sheet due to $q\bar{q}$ pair creation when the length of the string exceeds the critical value $R_1 \simeq 1.4$ fm. It is argued that a delicate balan...
2312.13959
Juhi Dutta
Juhi Dutta
Connecting Inflation and Low Energy Phenomenology in an Extended Two-Higgs-Doublet-Model
6 pages, 2 figures and 3 tables. Contribution submitted to the proceedings of EPS-HEP 2023, Hamburg, Germany
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We investigate the Two-Higgs-Doublet-Standard Model-Axion-Seesaw-Higgs-Portal inflation (2hdSMASH) model consisting of two Higgs doublets, a Standard Model (SM) singlet complex scalar and three SM singlet right-handed Majorana neutrinos that can address the strong CP problem, dark matter, neutrino masses, baryogenesi...
[ { "created": "Thu, 21 Dec 2023 15:45:58 GMT", "version": "v1" } ]
2023-12-22
[ [ "Dutta", "Juhi", "" ] ]
We investigate the Two-Higgs-Doublet-Standard Model-Axion-Seesaw-Higgs-Portal inflation (2hdSMASH) model consisting of two Higgs doublets, a Standard Model (SM) singlet complex scalar and three SM singlet right-handed Majorana neutrinos that can address the strong CP problem, dark matter, neutrino masses, baryogenesis ...
hep-ph/0207113
null
Thomas G. Rizzo
Effects on Higgs Boson Properties From Radion Mixing
6 pages, 7 figs., LaTex; talk given at DPF2002 and SUSY02
null
null
SLAC-PUB-9278
hep-ph
null
We discuss how mixing between the Standard Model Higgs boson, $h$, and the radion of the Randall-Sundrum model can lead to significant shifts in the expected properties of the Higgs boson. In particular we show that the total and partial decay widths of the Higgs, as well as the $h\to gg$ branching fraction, can be s...
[ { "created": "Mon, 8 Jul 2002 20:18:06 GMT", "version": "v1" } ]
2007-05-23
[ [ "Rizzo", "Thomas G.", "" ] ]
We discuss how mixing between the Standard Model Higgs boson, $h$, and the radion of the Randall-Sundrum model can lead to significant shifts in the expected properties of the Higgs boson. In particular we show that the total and partial decay widths of the Higgs, as well as the $h\to gg$ branching fraction, can be sub...
2212.03268
Bulat Farkhtdinov
S.V. Demidov, B.R. Farkhtdinov, D.G. Levkov
Suppression exponent for multiparticle production in $\lambda\phi^{4}$ theory
38 pages, 24 figures, 1 table, 3 ancillary data files, 3 videos
J. High Energ. Phys. 2023, 205 (2023)
10.1007/JHEP02(2023)205
INR-TH-2022-026
hep-ph hep-th
http://creativecommons.org/licenses/by/4.0/
We compute the probability of producing $n$ particles from few colliding particles in the unbroken $(3+1)$-dimensional $\lambda\phi^4$ theory. To this end we numerically implement semiclassical method of singular solutions which works at ${n \gg 1}$ in the weakly coupled regime ${\lambda \ll 1}$. For the first time, ...
[ { "created": "Tue, 6 Dec 2022 19:00:13 GMT", "version": "v1" } ]
2023-02-27
[ [ "Demidov", "S. V.", "" ], [ "Farkhtdinov", "B. R.", "" ], [ "Levkov", "D. G.", "" ] ]
We compute the probability of producing $n$ particles from few colliding particles in the unbroken $(3+1)$-dimensional $\lambda\phi^4$ theory. To this end we numerically implement semiclassical method of singular solutions which works at ${n \gg 1}$ in the weakly coupled regime ${\lambda \ll 1}$. For the first time, we...
hep-ph/0203083
Abbas Kenan Ciftci
R. Ciftci, A.K. Ciftci, E. Recepoglu, S. Sultansoy
Fourth SM Family Manifestations at CLIC
7 pages, 6 Tables
Turk.J.Phys.27:179-186,2003
null
null
hep-ph
null
The latest electroweak precision data allow the existence of additional chiral generations in the standard model. We study prospects of search for the fourth standard model family fermions and quarkonia at $e^{+}e^{-}$ and $\gamma \gamma $ options of CLIC. It is shown that CLIC will be powerfull machine for discovery...
[ { "created": "Fri, 8 Mar 2002 10:16:01 GMT", "version": "v1" }, { "created": "Wed, 18 Sep 2002 12:57:10 GMT", "version": "v2" } ]
2008-11-26
[ [ "Ciftci", "R.", "" ], [ "Ciftci", "A. K.", "" ], [ "Recepoglu", "E.", "" ], [ "Sultansoy", "S.", "" ] ]
The latest electroweak precision data allow the existence of additional chiral generations in the standard model. We study prospects of search for the fourth standard model family fermions and quarkonia at $e^{+}e^{-}$ and $\gamma \gamma $ options of CLIC. It is shown that CLIC will be powerfull machine for discovery a...
2402.11578
Shigehiro Yasui
Shigehiro Yasui, Daiki Suenaga, Kei Suzuki
QCD Kondo effect for single heavy quark in chiral-symmetry broken phase
14 pages, 1 figure
Phys. Rev. D 109, 094031 (2024)
10.1103/PhysRevD.109.094031
null
hep-ph cond-mat.str-el nucl-th
http://creativecommons.org/licenses/by/4.0/
We consider the quantum chromodynamics (QCD) Kondo effect for a single heavy quark in quark matter composed of light quarks with chiral symmetry breaking. Introducing several spinor structures in QCD Kondo condensates, i.e., particle-projected condensate, antiparticle-projected condensate, and normal condensate witho...
[ { "created": "Sun, 18 Feb 2024 12:52:27 GMT", "version": "v1" }, { "created": "Thu, 23 May 2024 05:27:46 GMT", "version": "v2" } ]
2024-05-24
[ [ "Yasui", "Shigehiro", "" ], [ "Suenaga", "Daiki", "" ], [ "Suzuki", "Kei", "" ] ]
We consider the quantum chromodynamics (QCD) Kondo effect for a single heavy quark in quark matter composed of light quarks with chiral symmetry breaking. Introducing several spinor structures in QCD Kondo condensates, i.e., particle-projected condensate, antiparticle-projected condensate, and normal condensate without...
1804.07731
Davide Racco
Jos\'e Ram\'on Espinosa, Davide Racco, Antonio Riotto
Primordial Black Holes from Higgs Vacuum Instability: Avoiding Fine-tuning through an Ultraviolet Safe Mechanism
5 pages, 4 figures
null
null
null
hep-ph astro-ph.CO gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We have recently proposed the idea that dark matter in our universe is formed by primordial black holes generated by Standard Model Higgs fluctuations during inflation and thanks to the fact that the Standard Model Higgs potential develops an instability at a scale of the order of $10^{11}$ GeV. In this sense, dark m...
[ { "created": "Fri, 20 Apr 2018 17:13:42 GMT", "version": "v1" } ]
2018-04-23
[ [ "Espinosa", "José Ramón", "" ], [ "Racco", "Davide", "" ], [ "Riotto", "Antonio", "" ] ]
We have recently proposed the idea that dark matter in our universe is formed by primordial black holes generated by Standard Model Higgs fluctuations during inflation and thanks to the fact that the Standard Model Higgs potential develops an instability at a scale of the order of $10^{11}$ GeV. In this sense, dark mat...
1009.1148
Jay Hubisz
Jay Hubisz and Jing Shao
Mass Measurement in Boosted Decay Chains with Missing Energy
5 pages, 5 figures, v2: typos fixed, references added, figures aesthetically improved
null
10.1103/PhysRevD.84.035031
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore a novel method of mass reconstruction in events with missing transverse momentum at hadron colliders. In events with sizeable boost factors in the final steps of dual multi-stage decay chains, the missing energy particles may each be approximately collinear with a visible standard model particle, spanning ...
[ { "created": "Mon, 6 Sep 2010 20:01:02 GMT", "version": "v1" }, { "created": "Mon, 4 Oct 2010 20:56:46 GMT", "version": "v2" } ]
2013-05-29
[ [ "Hubisz", "Jay", "" ], [ "Shao", "Jing", "" ] ]
We explore a novel method of mass reconstruction in events with missing transverse momentum at hadron colliders. In events with sizeable boost factors in the final steps of dual multi-stage decay chains, the missing energy particles may each be approximately collinear with a visible standard model particle, spanning a ...
2312.00129
Yue Zhang
Miha Nemev\v{s}ek, Yue Zhang
Anatomy of Diluted Dark Matter in the Minimal Left-Right Symmetric Model
48 pages, 11 figures
null
null
null
hep-ph astro-ph.CO
http://creativecommons.org/licenses/by/4.0/
Temporary matter domination and late entropy dilution, injected by a "long-lived" particle in the early universe, serves as a standard mechanism for yielding the correct dark matter relic density. We recently pointed out the cosmological significance of diluting particle's partial decay into dark matter. When repopul...
[ { "created": "Thu, 30 Nov 2023 19:00:03 GMT", "version": "v1" } ]
2023-12-04
[ [ "Nemevšek", "Miha", "" ], [ "Zhang", "Yue", "" ] ]
Temporary matter domination and late entropy dilution, injected by a "long-lived" particle in the early universe, serves as a standard mechanism for yielding the correct dark matter relic density. We recently pointed out the cosmological significance of diluting particle's partial decay into dark matter. When repopulat...
hep-ph/0107144
Iain W. Stewart
A.H. Hoang, A.V. Manohar, I.W. Stewart, and T. Teubner
The Threshold t-tbar Cross Section at NNLL Order
33 pages, 11 figs, a program to produce the cross section will be available soon
Phys.Rev.D65:014014,2002
10.1103/PhysRevD.65.014014
UCSD/PTH 2001-06, MPI-PhT/2001-17, PITHA 01/07
hep-ph
null
The total cross section for top quark pair production close to threshold in e+e- annihilation is investigated. Details are given about the calculation at next-to-next-to-leading logarithmic order. The summation of logarithms leads to a convergent expansion for the normalization of the cross section, and small residua...
[ { "created": "Fri, 13 Jul 2001 20:53:23 GMT", "version": "v1" } ]
2008-11-26
[ [ "Hoang", "A. H.", "" ], [ "Manohar", "A. V.", "" ], [ "Stewart", "I. W.", "" ], [ "Teubner", "T.", "" ] ]
The total cross section for top quark pair production close to threshold in e+e- annihilation is investigated. Details are given about the calculation at next-to-next-to-leading logarithmic order. The summation of logarithms leads to a convergent expansion for the normalization of the cross section, and small residual ...
hep-ph/9502212
J. W. F. Valle
Jos\'e W. F. Valle
SIGNATURES FROM PHYSICS BEYOND THE STANDARD MODEL
invited lectures given at XVII International meeting on Fundamental Physics, held at Jaca, February 1994, addressed to young experimentalists; 24 pages, latex, figures available by fax
null
null
null
hep-ph
null
A brief review is made of some of the experimental signatures that may be associated to a certain class of extensions of the standard model. The material of these lectures is divided into two sections. After briefly sketching the present observational status of the neutrino masses I consider various schemes of neutri...
[ { "created": "Wed, 1 Feb 1995 19:24:50 GMT", "version": "v1" } ]
2016-09-01
[ [ "Valle", "José W. F.", "" ] ]
A brief review is made of some of the experimental signatures that may be associated to a certain class of extensions of the standard model. The material of these lectures is divided into two sections. After briefly sketching the present observational status of the neutrino masses I consider various schemes of neutrino...
1404.4903
Francisco Caruso
Francisco Caruso, Enrico Predazzi
Is There Flavour Independence in Tensor Glueball Decays?
5 pages
Europhysics Letters 3 (6), pp. 677-680 (1987)
10.1209/0295-5075/3/6/005
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The flavour independence hypothesis for (tensor) glueball decays into exclusive final states is not ruled out by the existing data. A new methodology for testing its validity and accuracy is proposed in the framework of a particular mixing scheme. As an important consequence of our analysis, a relative factor of the ...
[ { "created": "Sat, 19 Apr 2014 00:28:16 GMT", "version": "v1" } ]
2021-10-19
[ [ "Caruso", "Francisco", "" ], [ "Predazzi", "Enrico", "" ] ]
The flavour independence hypothesis for (tensor) glueball decays into exclusive final states is not ruled out by the existing data. A new methodology for testing its validity and accuracy is proposed in the framework of a particular mixing scheme. As an important consequence of our analysis, a relative factor of the or...
1001.4877
Yoshio Koide
Yoshio Koide
Yukawaon Approach to the Sumino Relation for Charged Lepton Masses
14 pages, 3 figures, version accepted by PLB
Phys.Lett.B687:219-224,2010
10.1016/j.physletb.2010.03.019
OU-HET-653/2010
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
On the basis of a supersymmetric yukawaon model, Sumino's relation for charged lepton masses is re-derived. A relation between values of $K(\mu) \equiv (m_e +m_\mu + m_\tau)/(\sqrt{m_e} + \sqrt{m_\mu} + \sqrt{m_\tau})^2$ and $\kappa(\mu) \equiv \sqrt{m_e m_\mu m_\tau}/ (\sqrt{m_e} + \sqrt{m_\mu}+ \sqrt{m_\tau})^3$ is...
[ { "created": "Wed, 27 Jan 2010 09:25:29 GMT", "version": "v1" }, { "created": "Fri, 5 Mar 2010 05:18:44 GMT", "version": "v2" } ]
2010-04-30
[ [ "Koide", "Yoshio", "" ] ]
On the basis of a supersymmetric yukawaon model, Sumino's relation for charged lepton masses is re-derived. A relation between values of $K(\mu) \equiv (m_e +m_\mu + m_\tau)/(\sqrt{m_e} + \sqrt{m_\mu} + \sqrt{m_\tau})^2$ and $\kappa(\mu) \equiv \sqrt{m_e m_\mu m_\tau}/ (\sqrt{m_e} + \sqrt{m_\mu}+ \sqrt{m_\tau})^3$ is i...
1603.05958
Florian Staub
Florian Staub
Tutorial to SARAH
8 pages, 1 figure; Tutorial (based on lecture arXiv:1509.07061) given at "School and Workshops on Elementary Particle Physics and Gravity", Corfu Summer Institute, September 2015
null
null
CERN-TH-2016-062
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
I give in this brief tutorial a short practical introduction to the Mathematica package SARAH. First, it is shown how an existing model file can be changed to implement a new model in SARAH. In the second part, masses, vertices and renormalisation group equations are calculated with SARAH. Finally, the main commands ...
[ { "created": "Fri, 18 Mar 2016 19:06:06 GMT", "version": "v1" } ]
2016-03-21
[ [ "Staub", "Florian", "" ] ]
I give in this brief tutorial a short practical introduction to the Mathematica package SARAH. First, it is shown how an existing model file can be changed to implement a new model in SARAH. In the second part, masses, vertices and renormalisation group equations are calculated with SARAH. Finally, the main commands to...
hep-ph/9704246
Rob Leigh
Robert G. Leigh, Lisa Randall and Riccardo Rattazzi
Unity of Supersymmetry Breaking Models
harvmac, 40 pages
Nucl.Phys.B501:375-408,1997
10.1016/S0550-3213(97)00386-6
ILL-(TH)-97-1, MIT-CTP-2613, CERN-TH/97-07
hep-ph hep-th
null
We examine the models with gauge group U(1)^{k-1}\times\prod_{i=1}^k SU(n_i), which are obtained from decomposing the supersymmetry breaking model of Affleck, Dine and Seiberg containing an antisymmetric tensor field. We note that all of these models are distinct vacua of a single SU(N) gauge theory with an adjoint s...
[ { "created": "Sun, 6 Apr 1997 02:00:23 GMT", "version": "v1" } ]
2009-09-15
[ [ "Leigh", "Robert G.", "" ], [ "Randall", "Lisa", "" ], [ "Rattazzi", "Riccardo", "" ] ]
We examine the models with gauge group U(1)^{k-1}\times\prod_{i=1}^k SU(n_i), which are obtained from decomposing the supersymmetry breaking model of Affleck, Dine and Seiberg containing an antisymmetric tensor field. We note that all of these models are distinct vacua of a single SU(N) gauge theory with an adjoint sup...
1402.2174
Rohit Verma Prof.
Rohit Verma
Generic lepton mass matrices and neutrino oscillations
Accepted for publication in Physical Review D
Published in Phys. Rev. D 89, 053007 (2014)
10.1103/PhysRevD.89.053007
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Several intriguing aspects of neutrino oscillation phenomenology like the origin of small neutrino masses, the absolute neutrino mass scale, the neutrino mass hierarchy, i.e. normal or inverted and the nature of neutrinos, i.e. Dirac or Majorana, etc. have been addressed from a general perspective. We show how the fu...
[ { "created": "Mon, 10 Feb 2014 15:01:06 GMT", "version": "v1" } ]
2014-03-18
[ [ "Verma", "Rohit", "" ] ]
Several intriguing aspects of neutrino oscillation phenomenology like the origin of small neutrino masses, the absolute neutrino mass scale, the neutrino mass hierarchy, i.e. normal or inverted and the nature of neutrinos, i.e. Dirac or Majorana, etc. have been addressed from a general perspective. We show how the fund...
hep-ph/0504032
Jan Winter
T. Gleisberg, F. Krauss, A. Schaelicke, S. Schumann, J. Winter
Studying W+W- production at the Fermilab Tevatron with SHERPA
15 pages, 27 figures
Phys.Rev.D72:034028,2005
10.1103/PhysRevD.72.034028
null
hep-ph
null
The merging procedure of tree-level matrix elements with the subsequent parton shower as implemented in SHERPA will be studied for the example of W boson pair production at the Fermilab Tevatron. Comparisons with fixed order calculations at leading and next-to-leading order in the strong coupling constant and with ot...
[ { "created": "Tue, 5 Apr 2005 16:03:40 GMT", "version": "v1" } ]
2011-03-23
[ [ "Gleisberg", "T.", "" ], [ "Krauss", "F.", "" ], [ "Schaelicke", "A.", "" ], [ "Schumann", "S.", "" ], [ "Winter", "J.", "" ] ]
The merging procedure of tree-level matrix elements with the subsequent parton shower as implemented in SHERPA will be studied for the example of W boson pair production at the Fermilab Tevatron. Comparisons with fixed order calculations at leading and next-to-leading order in the strong coupling constant and with othe...
1409.3167
Valerie Fiona Domcke
Valerie Domcke and Alfredo Urbano
Dwarf spheroidal galaxies as degenerate gas of free fermions
17 pages, 7 figures. v3: Comparison with numerical data on mean densities added (Fig. 7). Version to be published in JCAP
null
10.1088/1475-7516/2015/01/002
SISSA 48/2014/FISI
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we analyze a simple scenario in which Dark Matter (DM) consists of free fermions with mass $m_f$. We assume that on galactic scales these fermions are capable of forming a degenerate Fermi gas, in which stability against gravitational collapse is ensured by the Pauli exclusion principle. The mass densit...
[ { "created": "Wed, 10 Sep 2014 18:15:44 GMT", "version": "v1" }, { "created": "Thu, 18 Sep 2014 12:33:54 GMT", "version": "v2" }, { "created": "Tue, 16 Dec 2014 15:26:12 GMT", "version": "v3" } ]
2015-06-22
[ [ "Domcke", "Valerie", "" ], [ "Urbano", "Alfredo", "" ] ]
In this paper we analyze a simple scenario in which Dark Matter (DM) consists of free fermions with mass $m_f$. We assume that on galactic scales these fermions are capable of forming a degenerate Fermi gas, in which stability against gravitational collapse is ensured by the Pauli exclusion principle. The mass density ...
hep-ph/9903322
Thomas Teubner
J.H. Kuhn and T. Teubner
Axial Contributions at the Top Threshold
LaTeX, 12 pages, including 5 Postscript figures using epsf
Eur.Phys.J.C9:221-228,1999
10.1007/s100529900062
DESY 99-031 and TTP99-12
hep-ph
null
We calculate the contributions of the axial current to top quark pair production in e+ e- annihilation at threshold. The QCD dynamics is taken into account by solving the Lippmann-Schwinger equation for the P wave production using the QCD potential up to two loops. We demonstrate that the dependence of the total and ...
[ { "created": "Thu, 11 Mar 1999 10:40:58 GMT", "version": "v1" } ]
2011-09-13
[ [ "Kuhn", "J. H.", "" ], [ "Teubner", "T.", "" ] ]
We calculate the contributions of the axial current to top quark pair production in e+ e- annihilation at threshold. The QCD dynamics is taken into account by solving the Lippmann-Schwinger equation for the P wave production using the QCD potential up to two loops. We demonstrate that the dependence of the total and di...
2311.06431
Rolando Martinez-Ramirez
Yessica Lenis, R. Martinez-Ramirez, Eduardo Peinado and William A. Ponce
Two-zero textures for Dirac Neutrinos
8 pages, 4 figures
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We review the two-zero mass matrix textures approach for Dirac neutrinos with the most recent global fit in the oscillation parameters. We found that three of the 15 possible textures are compatible with current experimental data, while the remaining two-zero textures are ruled out. Two textures are consistent with t...
[ { "created": "Fri, 10 Nov 2023 23:31:55 GMT", "version": "v1" } ]
2023-11-14
[ [ "Lenis", "Yessica", "" ], [ "Martinez-Ramirez", "R.", "" ], [ "Peinado", "Eduardo", "" ], [ "Ponce", "William A.", "" ] ]
We review the two-zero mass matrix textures approach for Dirac neutrinos with the most recent global fit in the oscillation parameters. We found that three of the 15 possible textures are compatible with current experimental data, while the remaining two-zero textures are ruled out. Two textures are consistent with the...
1906.01863
Mathieu Pellen
Mauro Chiesa, Ansgar Denner, Jean-Nicolas Lang, Mathieu Pellen
An event generator for same-sign W-boson scattering at the LHC including electroweak corrections
20 pages, 12 Figures. Matches the journal version. Acknowledgement added
null
10.1140/epjc/s10052-019-7290-6
Cavendish-HEP-19/09, ZU-TH-28/19, VBSCAN-PUB-04-19
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this article we present an event generator based on the Monte Carlo program Powheg in combination with the matrix-element generator Recola. We apply it to compute NLO electroweak corrections to same-sign W-boson scattering, which have been shown to be large at the LHC. The event generator allows for the generation...
[ { "created": "Wed, 5 Jun 2019 07:37:47 GMT", "version": "v1" }, { "created": "Fri, 27 Sep 2019 01:46:44 GMT", "version": "v2" }, { "created": "Tue, 18 Feb 2020 09:28:56 GMT", "version": "v3" } ]
2020-02-19
[ [ "Chiesa", "Mauro", "" ], [ "Denner", "Ansgar", "" ], [ "Lang", "Jean-Nicolas", "" ], [ "Pellen", "Mathieu", "" ] ]
In this article we present an event generator based on the Monte Carlo program Powheg in combination with the matrix-element generator Recola. We apply it to compute NLO electroweak corrections to same-sign W-boson scattering, which have been shown to be large at the LHC. The event generator allows for the generation o...
hep-ph/9910457
Yasuhiro Okada
Yasuhiro Okada (KEK)
Indirect Search for Supersymmetry
22 pages, 11 figures, lecture given at International Symposium on Supersymmetry, Supergravity, and Superstring, June 23 -26, 1999, Seoul, Korea
null
null
KEK-TH-657
hep-ph
null
Effects of supersymmetric particles may appear in various low energy experiments through loop diagrams. We discuss various flavor changing neutral current processes, the muon anomalous magnetic moment and lepton flavor violation in the context of the supergravity model. In particular the $B^0$-$\ol{B}^0$ mixing and t...
[ { "created": "Sat, 23 Oct 1999 11:23:18 GMT", "version": "v1" } ]
2007-05-23
[ [ "Okada", "Yasuhiro", "", "KEK" ] ]
Effects of supersymmetric particles may appear in various low energy experiments through loop diagrams. We discuss various flavor changing neutral current processes, the muon anomalous magnetic moment and lepton flavor violation in the context of the supergravity model. In particular the $B^0$-$\ol{B}^0$ mixing and the...
1207.1678
Walter Grimus
W. Grimus, L. Lavoura
mu-tau Interchange symmetry and lepton mixing
11 pages, no figures, to appear in the special issue "Flavor Symmetries" in Fortschritte der Physik, edited by S. Morisi, H.P. Nilles, and J.W.F. Valle
null
10.1002/prop.201200118
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We focus on the use of a mu-tau interchange symmetry to explain features of lepton mixing, especially maximal atmospheric neutrino mixing. We review two models which achieve this goal and are based on the seesaw mechanism and on the soft breaking of the family-lepton-number symmetries. We also note that that symmetry...
[ { "created": "Fri, 6 Jul 2012 16:37:10 GMT", "version": "v1" } ]
2015-06-05
[ [ "Grimus", "W.", "" ], [ "Lavoura", "L.", "" ] ]
We focus on the use of a mu-tau interchange symmetry to explain features of lepton mixing, especially maximal atmospheric neutrino mixing. We review two models which achieve this goal and are based on the seesaw mechanism and on the soft breaking of the family-lepton-number symmetries. We also note that that symmetry m...
0908.3567
Ulrich Langenfeld
U. Langenfeld
Squark pair production at the LHC
4 pages, 4 figures, v2: some typos corrected, to be published in the proceedings of SUSY09, the 17th International Conference on Supersymmetry and the Unification of Fundamental Interactions, 5-10 June, Boston, MA
AIP Conf.Proc.1200:333-336,2010
10.1063/1.3327583
DESY-09-122, SFB/CPP-09-70
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present NNLO cross sections for squark- antisquark production at the LHC. We have calculated new analytic expressions for the scale dependent scaling functions at one and two loop.
[ { "created": "Tue, 25 Aug 2009 09:09:16 GMT", "version": "v1" }, { "created": "Mon, 9 Nov 2009 16:04:18 GMT", "version": "v2" } ]
2015-05-14
[ [ "Langenfeld", "U.", "" ] ]
We present NNLO cross sections for squark- antisquark production at the LHC. We have calculated new analytic expressions for the scale dependent scaling functions at one and two loop.
2308.15255
Fu-Lai Wang
Fu-Lai Wang and Xiang Liu
New type of doubly charmed molecular pentaquarks containing most strange quarks: Mass spectra, radiative decays, and magnetic moments
16 pages, 1 figure, and 7 tables
Phys. Rev. D 108, 074022(2023)
10.1103/PhysRevD.108.074022
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, we first predict the mass spectra of the $\Omega_{c}^{(*)}{D}_s^{(*)}$-type doubly charmed molecular pentaquark candidates, where the one-boson-exchange model is adopted by considering both the $S$-$D$ wave mixing effect and the coupled channel effect. Our findings indicate that the $\Omega_{c}{D}_s^*$ ...
[ { "created": "Tue, 29 Aug 2023 12:29:03 GMT", "version": "v1" }, { "created": "Thu, 7 Sep 2023 11:17:12 GMT", "version": "v2" }, { "created": "Thu, 26 Oct 2023 07:45:51 GMT", "version": "v3" } ]
2023-10-27
[ [ "Wang", "Fu-Lai", "" ], [ "Liu", "Xiang", "" ] ]
In this work, we first predict the mass spectra of the $\Omega_{c}^{(*)}{D}_s^{(*)}$-type doubly charmed molecular pentaquark candidates, where the one-boson-exchange model is adopted by considering both the $S$-$D$ wave mixing effect and the coupled channel effect. Our findings indicate that the $\Omega_{c}{D}_s^*$ st...
1410.8645
Jun He Dr.
Jun He
$D^*\bar{D}_1(2420)$ and $D\bar{D}'^*(2600)$ interactions and the charged charmonium-like state $Z(4430)$
6 pages, 1 tables, 2 figures
Chinese Physics C Vol. 40, No. 4 (2016) 043001
10.1088/1674-1137/40/4/043101
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The $D^*\bar{D}_1(2420)$ and $D\bar{D}'^*(2600)$ interactions are studied in a one-boson-exchange model. Isovector bound state solutions with spin parity $J^P=1^{+}$ are found from the $D^*\bar{D}_1(2420)$ interaction, which may be related to the observed charged charmonium-like state $Z(4430)$. There is no bound sta...
[ { "created": "Fri, 31 Oct 2014 05:34:02 GMT", "version": "v1" }, { "created": "Fri, 24 Apr 2015 14:39:47 GMT", "version": "v2" }, { "created": "Thu, 24 Sep 2015 05:31:12 GMT", "version": "v3" } ]
2016-02-16
[ [ "He", "Jun", "" ] ]
The $D^*\bar{D}_1(2420)$ and $D\bar{D}'^*(2600)$ interactions are studied in a one-boson-exchange model. Isovector bound state solutions with spin parity $J^P=1^{+}$ are found from the $D^*\bar{D}_1(2420)$ interaction, which may be related to the observed charged charmonium-like state $Z(4430)$. There is no bound state...
hep-ph/0503025
Amjad Gilani
Amjad Hussain Shah Gilani (NCP, QAU, Pakistan)
Mass relations among quarks and/or leptons
04 pages, 01 ps figure
null
null
null
hep-ph
null
The mass relations among respective quark family members are predicted and similar mass relation for the lepton family member are obtained. The volume of the volume element is also calculated which is (3/2)^(1/2).
[ { "created": "Wed, 2 Mar 2005 16:53:52 GMT", "version": "v1" } ]
2007-05-23
[ [ "Gilani", "Amjad Hussain Shah", "", "NCP, QAU, Pakistan" ] ]
The mass relations among respective quark family members are predicted and similar mass relation for the lepton family member are obtained. The volume of the volume element is also calculated which is (3/2)^(1/2).
0808.2020
Wolfgang Sch\"afer
Anna Rybarska, Wolfgang Sch\"afer, Antoni Szczurek
Exclusive J/psi photoproduction in pp and ppbar collisions
4 pages, 4 figs. A talk given by WS at Meson2008, Cracow, Poland, 6-10 June 2008
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We report on a detailed investigation of exclusive J/psi production in proton--proton and proton-antiproton collisions. Predictions for Tevatron and LHC energies are included.
[ { "created": "Thu, 14 Aug 2008 16:30:06 GMT", "version": "v1" } ]
2008-08-15
[ [ "Rybarska", "Anna", "" ], [ "Schäfer", "Wolfgang", "" ], [ "Szczurek", "Antoni", "" ] ]
We report on a detailed investigation of exclusive J/psi production in proton--proton and proton-antiproton collisions. Predictions for Tevatron and LHC energies are included.
2103.05646
Michael Nee
Prateek Agrawal and Michael Nee
Avoided Deconfinement in Randall-Sundrum Models
22 pages, 5 figures, journal version
null
10.1007/JHEP10(2021)105
null
hep-ph hep-th
http://creativecommons.org/licenses/by/4.0/
We study first order phase transitions in Randall-Sundrum models in the early universe dual to confinement in large-$N$ gauge theories. The transition rate to the confined phase is suppressed by a factor $\exp(-N^2)$, and may not complete for $N \gg 1$, instead leading to an eternally inflating phase. To avoid this f...
[ { "created": "Tue, 9 Mar 2021 19:00:02 GMT", "version": "v1" }, { "created": "Fri, 30 Apr 2021 10:06:10 GMT", "version": "v2" }, { "created": "Wed, 25 Aug 2021 13:53:33 GMT", "version": "v3" }, { "created": "Fri, 29 Oct 2021 10:26:55 GMT", "version": "v4" } ]
2021-11-01
[ [ "Agrawal", "Prateek", "" ], [ "Nee", "Michael", "" ] ]
We study first order phase transitions in Randall-Sundrum models in the early universe dual to confinement in large-$N$ gauge theories. The transition rate to the confined phase is suppressed by a factor $\exp(-N^2)$, and may not complete for $N \gg 1$, instead leading to an eternally inflating phase. To avoid this fat...
1607.07693
Matthew Mewes
Matthew Mewes
Nonminimal Lorentz violation
Presented at the Seventh Meeting on CPT and Lorentz Symmetry, Bloomington, Indiana, June 20-24, 2016
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This contribution to the CPT'16 meeting provides a brief overview of recent studies of nonminimal Lorentz violation in the Standard-Model Extension.
[ { "created": "Mon, 25 Jul 2016 16:42:11 GMT", "version": "v1" } ]
2016-07-27
[ [ "Mewes", "Matthew", "" ] ]
This contribution to the CPT'16 meeting provides a brief overview of recent studies of nonminimal Lorentz violation in the Standard-Model Extension.
hep-ph/9409235
PostDoc Its
N.G. Deshpande, Xiao-Gang He and E. Keith
Proton Decay In Supersymmetric Finite Grand Unificatione
7 pages, Revtex. Talk presented by X.-G. He at the Eighth Meeting the American Physical Society, Division of Particles and Fields (DPF'94), Albuqurque, New Mexico, August 2-6, 1994
null
null
OITS-548
hep-ph
null
We study proton decay in finite supersymmetric SU(5) grand unified theories. We find that the finite supersymmetric SU(5) models are ruled out from this consideration.
[ { "created": "Tue, 6 Sep 1994 17:55:11 GMT", "version": "v1" } ]
2007-05-23
[ [ "Deshpande", "N. G.", "" ], [ "He", "Xiao-Gang", "" ], [ "Keith", "E.", "" ] ]
We study proton decay in finite supersymmetric SU(5) grand unified theories. We find that the finite supersymmetric SU(5) models are ruled out from this consideration.
1507.08161
Ali Chamseddine
Ali H. Chamseddine, Alain Connes and Walter D. van Suijlekom
Grand Unification in the Spectral Pati-Salam Model
8 pages
JHEP 1511 (2015) 011
10.1007/JHEP11(2015)011
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze the running at one-loop of the gauge couplings in the spectral Pati-Salam model that was derived in the framework of noncommutative geometry. There are a few different scenario's for the scalar particle content which are determined by the precise form of the Dirac operator for the finite noncommutative spa...
[ { "created": "Wed, 29 Jul 2015 14:38:44 GMT", "version": "v1" } ]
2017-01-02
[ [ "Chamseddine", "Ali H.", "" ], [ "Connes", "Alain", "" ], [ "van Suijlekom", "Walter D.", "" ] ]
We analyze the running at one-loop of the gauge couplings in the spectral Pati-Salam model that was derived in the framework of noncommutative geometry. There are a few different scenario's for the scalar particle content which are determined by the precise form of the Dirac operator for the finite noncommutative space...
1610.04112
Keith R. Dienes
Keith R. Dienes, Fei Huang, Shufang Su, Brooks Thomas
Dynamical Dark Matter from Strongly-Coupled Dark Sectors
29 pages, LaTeX, 10 figures
Phys. Rev. D 95, 043526 (2017)
10.1103/PhysRevD.95.043526
null
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Dynamical Dark Matter (DDM) is an alternative framework for dark-matter physics in which the dark sector comprises a vast ensemble of particle species whose decay widths are balanced against their cosmological abundances. Previous studies of this framework have focused on a particular class of DDM ensembles --- motiv...
[ { "created": "Thu, 13 Oct 2016 14:55:14 GMT", "version": "v1" } ]
2017-03-01
[ [ "Dienes", "Keith R.", "" ], [ "Huang", "Fei", "" ], [ "Su", "Shufang", "" ], [ "Thomas", "Brooks", "" ] ]
Dynamical Dark Matter (DDM) is an alternative framework for dark-matter physics in which the dark sector comprises a vast ensemble of particle species whose decay widths are balanced against their cosmological abundances. Previous studies of this framework have focused on a particular class of DDM ensembles --- motivat...
2205.06272
Madhurima Chakraborty
Francesco Capozzi, Madhurima Chakraborty, Sovan Chakraborty, Manibrata Sen
Supernova fast flavor conversions in 1+1D : Influence of mu-tau neutrinos
9 pages, 3 figures
Phys. Rev. D 106, 083011 ,2022
10.1103/PhysRevD.106.083011
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
In the dense supernova environment, neutrinos can undergo fast flavor conversions which depend on the large neutrino-neutrino interaction strength. It has been recently shown that both their presence and outcome can be affected when passing from the commonly used three neutrino species approach to the more general on...
[ { "created": "Thu, 12 May 2022 18:00:01 GMT", "version": "v1" }, { "created": "Thu, 27 Oct 2022 14:10:17 GMT", "version": "v2" } ]
2022-10-28
[ [ "Capozzi", "Francesco", "" ], [ "Chakraborty", "Madhurima", "" ], [ "Chakraborty", "Sovan", "" ], [ "Sen", "Manibrata", "" ] ]
In the dense supernova environment, neutrinos can undergo fast flavor conversions which depend on the large neutrino-neutrino interaction strength. It has been recently shown that both their presence and outcome can be affected when passing from the commonly used three neutrino species approach to the more general one ...
1312.7505
Bibhushan Shakya
Bibhushan Shakya
The Status of Neutralino Dark Matter
Contribution to the proceedings of the CETUP* 2013 Dark Matter Program, Lead/Deadwood, South Dakota
null
10.1063/1.4883417
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The lightest neutralino in supersymmetry is the most studied dark matter candidate. This writeup reviews the status of neutralino dark matter in minimal and nonminimal supersymmetric models in light of recent null results at the XENON100 experiment and the observation of a 130 GeV gamma ray signal from the Galactic C...
[ { "created": "Sun, 29 Dec 2013 05:40:09 GMT", "version": "v1" } ]
2015-06-18
[ [ "Shakya", "Bibhushan", "" ] ]
The lightest neutralino in supersymmetry is the most studied dark matter candidate. This writeup reviews the status of neutralino dark matter in minimal and nonminimal supersymmetric models in light of recent null results at the XENON100 experiment and the observation of a 130 GeV gamma ray signal from the Galactic Cen...