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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0911.2309 | H Zeen Devi | H. Zeen Devi, Amal Kr Sarma, N. Nimai Singh | Flavour leptogenesis with tribimaximal mixings and beyond | 24 pages, 10 tables, no figures | null | null | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We compute and compare the baryon asymmetry of the universe in thermal
leptogenesis scenario with and without flavour effects for different neutrino
mass models namely degenerate, inverted hierarchical and normal hierarchical
models, with tribimaximal mixings and beyond. Considering three possible
diagonal forms of D... | [
{
"created": "Thu, 12 Nov 2009 07:56:25 GMT",
"version": "v1"
}
] | 2009-11-13 | [
[
"Devi",
"H. Zeen",
""
],
[
"Sarma",
"Amal Kr",
""
],
[
"Singh",
"N. Nimai",
""
]
] | We compute and compare the baryon asymmetry of the universe in thermal leptogenesis scenario with and without flavour effects for different neutrino mass models namely degenerate, inverted hierarchical and normal hierarchical models, with tribimaximal mixings and beyond. Considering three possible diagonal forms of Dir... |
hep-ph/0604226 | Fetze Pijlman | Fetze Pijlman | Single spin asymmetries and gauge invariance in hard scattering
processes | 160 pages, 138 figures, PhD thesis | null | null | null | hep-ph | null | In this PhD-thesis effects from intrinsic transverse momentum are studied in
several hard scattering processes with an emphasis on color gauge invariance.
The thesis is intended for beginning PhD-students as well as for the experts.
| [
{
"created": "Wed, 26 Apr 2006 12:48:50 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Pijlman",
"Fetze",
""
]
] | In this PhD-thesis effects from intrinsic transverse momentum are studied in several hard scattering processes with an emphasis on color gauge invariance. The thesis is intended for beginning PhD-students as well as for the experts. |
hep-ph/0510031 | Oleg Teryaev | O.V. Teryaev | Analytic Properties of Hard Exclusive Amplitudes | 4 pages, contribution to XIth International Conference on Elastic and
Diffractive Scattering, Chateau de Blois, France, May 15 - 20, 2005 | null | null | null | hep-ph | null | Analytic properties of hard exclusive processes described by Generalized
Parton Distributions (GPD's) are considered. The analytic continuation of GPD
is provided by Generalized Distribution Amplitudes (GDA). The GDA's for the
production of two $\rho-$mesons may give an access to four-quark exotic states.
The crucial... | [
{
"created": "Mon, 3 Oct 2005 17:45:41 GMT",
"version": "v1"
},
{
"created": "Mon, 10 Oct 2005 15:50:35 GMT",
"version": "v2"
}
] | 2007-05-23 | [
[
"Teryaev",
"O. V.",
""
]
] | Analytic properties of hard exclusive processes described by Generalized Parton Distributions (GPD's) are considered. The analytic continuation of GPD is provided by Generalized Distribution Amplitudes (GDA). The GDA's for the production of two $\rho-$mesons may give an access to four-quark exotic states. The crucial r... |
hep-ph/9510341 | Carlos Wagner | C.E.M. Wagner | Physics at LEP and Yukawa Coupling Unification | 9 pages, Latex, talk presented at the Conference SUSY95, Palaiseau,
France, May 1995, to appear in the Proceedings | null | null | CERN-TH/95-261 | hep-ph | null | We discuss the impact of the recent precision measurements at LEP on the
minimal supersymmetric standard model. We show that the values of $\tan\beta$
necessary to induce large positive corrections to $R_b$ are the same as the
ones preferred by the unification of the bottom and $\tau$ Yukawa couplings in
the MSSM for... | [
{
"created": "Wed, 18 Oct 1995 20:02:22 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Wagner",
"C. E. M.",
""
]
] | We discuss the impact of the recent precision measurements at LEP on the minimal supersymmetric standard model. We show that the values of $\tan\beta$ necessary to induce large positive corrections to $R_b$ are the same as the ones preferred by the unification of the bottom and $\tau$ Yukawa couplings in the MSSM for t... |
2406.09193 | Venugopal Ellajosyula | Avik Banerjee, Elin Bergeaas Kuutmann, Venugopal Ellajosyula, Rikard
Enberg, Gabriele Ferretti, Luca Panizzi | Vector-like quarks: status and new directions at the LHC | 25 pages, 7 figures | null | null | null | hep-ph hep-ex | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Experimental searches for vector-like quarks have until now only considered
their decays into Standard Model particles. However, various new physics
scenarios predict additional scalars, so that these vector-like quarks can
decay to new channels. These new channels reduce the branching ratios into
Standard Model fina... | [
{
"created": "Thu, 13 Jun 2024 14:53:57 GMT",
"version": "v1"
}
] | 2024-06-14 | [
[
"Banerjee",
"Avik",
""
],
[
"Kuutmann",
"Elin Bergeaas",
""
],
[
"Ellajosyula",
"Venugopal",
""
],
[
"Enberg",
"Rikard",
""
],
[
"Ferretti",
"Gabriele",
""
],
[
"Panizzi",
"Luca",
""
]
] | Experimental searches for vector-like quarks have until now only considered their decays into Standard Model particles. However, various new physics scenarios predict additional scalars, so that these vector-like quarks can decay to new channels. These new channels reduce the branching ratios into Standard Model final ... |
hep-ph/0211040 | Gudrid Moortgat-Pick | E. Boos, G. Moortgat-Pick, H.U. Martyn, M. Sachwitz, A.Vologdin | Impact of Tau Polarization for the determination of high \tan\beta and
A_{\tau} | 11 pages,8 figures; to appear in the Proceedings of SUSY02,
references added | null | null | null | hep-ph | null | In order to determine the fundamental MSSM parameters M_1, M_2, \mu and
\tan\beta the tau polarization from stau decays can be explored as a `bridge'
between the gaugino/higgsino and the stau sector in particular in the high
\tan\beta range. Even in the case of high \tan\beta an accuracy of
\delta(\tan\beta)\approx 5... | [
{
"created": "Mon, 4 Nov 2002 20:08:39 GMT",
"version": "v1"
},
{
"created": "Thu, 13 Mar 2003 19:46:49 GMT",
"version": "v2"
}
] | 2007-05-23 | [
[
"Boos",
"E.",
""
],
[
"Moortgat-Pick",
"G.",
""
],
[
"Martyn",
"H. U.",
""
],
[
"Sachwitz",
"M.",
""
],
[
"Vologdin",
"A.",
""
]
] | In order to determine the fundamental MSSM parameters M_1, M_2, \mu and \tan\beta the tau polarization from stau decays can be explored as a `bridge' between the gaugino/higgsino and the stau sector in particular in the high \tan\beta range. Even in the case of high \tan\beta an accuracy of \delta(\tan\beta)\approx 5% ... |
1602.03803 | Peter Kroll | Peter Kroll | Hard exclusive pion leptoproduction | 8 pages, 8 figures, uses svglov2.clo and svjour2.cls talk presented
at the ECT* workshop "Nucleon Resonances: From Photoproduction to High Photon
Virtualities | null | 10.1007/s00601-016-1146-5 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this talk it is reported on an analysis of hard exclusive leptoproduction
of pions within the handbag approach. It is argued that recent measurements of
this process performed by HERMES and CLAS clearly indicate the occurrence of
strong contributions from transversely polarized photons. Within the handbag
approach... | [
{
"created": "Thu, 11 Feb 2016 17:58:00 GMT",
"version": "v1"
}
] | 2016-09-21 | [
[
"Kroll",
"Peter",
""
]
] | In this talk it is reported on an analysis of hard exclusive leptoproduction of pions within the handbag approach. It is argued that recent measurements of this process performed by HERMES and CLAS clearly indicate the occurrence of strong contributions from transversely polarized photons. Within the handbag approach s... |
hep-ph/0506314 | Kazuo Tsushima | K. Saito, K. Tsushima, A.W. Thomas | Nucleon and hadron structure changes in the nuclear medium and impact on
observables | 143 pages, 77 figures, references added, a review article accepted in
Prog. Part. Nucl. Phys | Prog.Part.Nucl.Phys.58:1-167,2007 | 10.1016/j.ppnp.2005.07.003 | JLAB-THY-05-326 | hep-ph hep-ex nucl-ex nucl-th | null | We review the effect of hadron structure changes in a nuclear medium using
the quark-meson coupling (QMC) model, which is based on a mean field
description of non-overlapping nucleon (or baryon) bags bound by the
self-consistent exchange of scalar and vector mesons. This approach leads to
simple scaling relations for... | [
{
"created": "Thu, 30 Jun 2005 02:52:53 GMT",
"version": "v1"
},
{
"created": "Tue, 5 Jul 2005 10:58:24 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Saito",
"K.",
""
],
[
"Tsushima",
"K.",
""
],
[
"Thomas",
"A. W.",
""
]
] | We review the effect of hadron structure changes in a nuclear medium using the quark-meson coupling (QMC) model, which is based on a mean field description of non-overlapping nucleon (or baryon) bags bound by the self-consistent exchange of scalar and vector mesons. This approach leads to simple scaling relations for t... |
1108.2782 | Giuseppe Pagliara | Giuseppe Pagliara and Francesco Giacosa | Non exponential decays of hadrons | Prepared for the Proceedings of the Workshop "Excited QCD 2011", Les
Houches (France), 20-25 February 2011; 6 pages, 1 figure | null | null | null | hep-ph quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We analyze the survival probability of unstable particles in the context of
quantum field theory. After introducing the spectral function of resonances, we
show that deviations from the exponential decay law occur at short times after
the creation of the unstable particle. For hadronic decays, these deviations
are si... | [
{
"created": "Sat, 13 Aug 2011 10:28:01 GMT",
"version": "v1"
}
] | 2011-08-16 | [
[
"Pagliara",
"Giuseppe",
""
],
[
"Giacosa",
"Francesco",
""
]
] | We analyze the survival probability of unstable particles in the context of quantum field theory. After introducing the spectral function of resonances, we show that deviations from the exponential decay law occur at short times after the creation of the unstable particle. For hadronic decays, these deviations are siza... |
hep-ph/9607212 | Don Weingarten | Don Weingarten | Evidence for the Observation of a Glueball | 12 pages of Latex, 5 PostScript figures, uses sprocl.sty which is
included, invited talk at Continuous Advances in QCD, '96 | null | null | IBM-HET-96-1 | hep-ph | null | I briefly review lattice QCD, the valence (quenched) approximation, and the
application of both to the determination of the mass and two-body decay
couplings of the lightest scalar glueball. Results in agreement with the
observed properties of $f_J(1710)$ strongly suggest this resonance is largely a
scalar glueball.
| [
{
"created": "Tue, 2 Jul 1996 00:13:32 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Weingarten",
"Don",
""
]
] | I briefly review lattice QCD, the valence (quenched) approximation, and the application of both to the determination of the mass and two-body decay couplings of the lightest scalar glueball. Results in agreement with the observed properties of $f_J(1710)$ strongly suggest this resonance is largely a scalar glueball. |
0801.4324 | Daniel Arteaga | Daniel Arteaga | Quasiparticle excitations in relativistic quantum field theory | 53 pages, 4 figures. Version accepted for publication in Ann. Phys | Annals Phys.324:920-954,2009 | 10.1016/j.aop.2008.12.002 | null | hep-ph cond-mat.stat-mech hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We analyze the particle-like excitations arising in relativistic field
theories in states different than the vacuum. The basic properties
characterizing the quasiparticle propagation are studied using two different
complementary methods. First we introduce a frequency-based approach, wherein
the quasiparticle propert... | [
{
"created": "Mon, 28 Jan 2008 16:21:14 GMT",
"version": "v1"
},
{
"created": "Fri, 5 Dec 2008 11:40:42 GMT",
"version": "v2"
}
] | 2010-11-23 | [
[
"Arteaga",
"Daniel",
""
]
] | We analyze the particle-like excitations arising in relativistic field theories in states different than the vacuum. The basic properties characterizing the quasiparticle propagation are studied using two different complementary methods. First we introduce a frequency-based approach, wherein the quasiparticle propertie... |
1908.05491 | Oleg Lebedev | Oleg Lebedev and Takashi Toma | Relativistic Freeze-in | 10+1 pages, 2 figures | Phys.Lett. B798 (2019) 134961 | 10.1016/j.physletb.2019.134961 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study production of scalar dark matter via the freeze--in mechanism in the
relativistic regime, focussing on the simplest Higgs portal model. We derive
the corresponding relativistic reaction rates based on the Bose--Einstein
statistics taking into account the thermal mass effects as well as the change
in the Higg... | [
{
"created": "Thu, 15 Aug 2019 11:02:05 GMT",
"version": "v1"
}
] | 2019-10-29 | [
[
"Lebedev",
"Oleg",
""
],
[
"Toma",
"Takashi",
""
]
] | We study production of scalar dark matter via the freeze--in mechanism in the relativistic regime, focussing on the simplest Higgs portal model. We derive the corresponding relativistic reaction rates based on the Bose--Einstein statistics taking into account the thermal mass effects as well as the change in the Higgs ... |
1506.06131 | Bartosz Fornal | Bartosz Fornal, Arvind Rajaraman, Tim M. P. Tait | Baryon Number as the Fourth Color | 6 pages, 3 figures | Phys. Rev. D 92, 055022 (2015) | 10.1103/PhysRevD.92.055022 | UCI-HEP-TR-2015-05 | hep-ph hep-ex hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We propose an extension of the Standard Model in which baryon number is
promoted to be part of a non-Abelian gauge symmetry at high energies.
Specifically, we consider the gauge group SU(4) x SU(2)_L x U(1)_X, where the
SU(4) unifies baryon number and color. This symmetry is spontaneously broken
down to the Standard ... | [
{
"created": "Fri, 19 Jun 2015 20:00:11 GMT",
"version": "v1"
}
] | 2015-09-23 | [
[
"Fornal",
"Bartosz",
""
],
[
"Rajaraman",
"Arvind",
""
],
[
"Tait",
"Tim M. P.",
""
]
] | We propose an extension of the Standard Model in which baryon number is promoted to be part of a non-Abelian gauge symmetry at high energies. Specifically, we consider the gauge group SU(4) x SU(2)_L x U(1)_X, where the SU(4) unifies baryon number and color. This symmetry is spontaneously broken down to the Standard Mo... |
2105.14128 | Ernest Ma | Ernest Ma (UC Riverside) | New $[SU(3)]^4$ Realization of Lepton/Dark Symmetry | 9 pages, no figure | null | 10.1016/j.physletb.2021.136561 | UCRHEP-T616 (May 2021) | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Extending the well-known $SU(3)_C \times SU(3)_L \times SU(3)_R$ model of
quarks and leptons to include a fourth $SU(3)_N$ gauge factor, a new
realization is obtained, different from leptonic color, which contains a
lepton/dark symmetry with the help of an input $Z_4$ symmetry. It is seen to
encompass a previous exte... | [
{
"created": "Fri, 28 May 2021 22:32:38 GMT",
"version": "v1"
}
] | 2021-08-11 | [
[
"Ma",
"Ernest",
"",
"UC Riverside"
]
] | Extending the well-known $SU(3)_C \times SU(3)_L \times SU(3)_R$ model of quarks and leptons to include a fourth $SU(3)_N$ gauge factor, a new realization is obtained, different from leptonic color, which contains a lepton/dark symmetry with the help of an input $Z_4$ symmetry. It is seen to encompass a previous extens... |
2404.00734 | Rohit Dhir | Thejus Mary S., Avijit Hazra, Neelesh Sharma, and Rohit Dhir | Weak decays of $\pmb{B_c}$ involving vector mesons in self-consistent
covariant light-front approach | 57 pages, 11 figures | null | null | null | hep-ph hep-ex | http://creativecommons.org/licenses/by/4.0/ | We present a comprehensive analysis of weak transition form factors,
semileptonic decays, and nonleptonic decays of $B_c$ meson involving
pseudoscalar ($P$) and vector ($V$) meson for bottom-conserving and
bottom-changing decay modes. We employ self-consistent covariant light-front
quark model (CLFQM), termed as Type... | [
{
"created": "Sun, 31 Mar 2024 16:35:49 GMT",
"version": "v1"
}
] | 2024-04-02 | [
[
"S.",
"Thejus Mary",
""
],
[
"Hazra",
"Avijit",
""
],
[
"Sharma",
"Neelesh",
""
],
[
"Dhir",
"Rohit",
""
]
] | We present a comprehensive analysis of weak transition form factors, semileptonic decays, and nonleptonic decays of $B_c$ meson involving pseudoscalar ($P$) and vector ($V$) meson for bottom-conserving and bottom-changing decay modes. We employ self-consistent covariant light-front quark model (CLFQM), termed as Type-I... |
hep-ph/9505310 | null | Konstantin Goulianos (The Rockefeller University) | THE STRUCTURE OF THE POMERON | 13 pages with 4 eps figures. Please send comments to
DINO@rock02.rockefeller.edu | null | null | RU 95/E-26 | hep-ph | null | Results of experiments probing the structure of the pomeron at hadron
colliders and at HERA are reviewed. By renormalizing the pomeron flux factor in
diffraction dissociation as dictated by unitarity, a picture emerges from the
data in which the pomeron appears to be made of valence quark and gluon
color-singlets in ... | [
{
"created": "Mon, 15 May 1995 21:46:27 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Goulianos",
"Konstantin",
"",
"The Rockefeller University"
]
] | Results of experiments probing the structure of the pomeron at hadron colliders and at HERA are reviewed. By renormalizing the pomeron flux factor in diffraction dissociation as dictated by unitarity, a picture emerges from the data in which the pomeron appears to be made of valence quark and gluon color-singlets in a ... |
hep-ph/0511348 | Marco Serone | Giuliano Panico and Marco Serone | The Electroweak Phase Transition in Models with Gauge-Higgs Unification | 4 pages, 2 figures, contribution to the Proceedings of the Int.
Europhysics Conf. on High Energy Physics (HEP2005), July 21-27 2005, Lisboa,
Portugal | null | null | null | hep-ph | null | The dynamics of five dimensional Wilson line phases at finite temperature is
studied in the one-loop approximation. We show that at temperatures of order
$T\sim 1/L$, where L is the length of the compact space, the gauge symmetry is
always restored and the electroweak phase transition appears to be of first
order.
... | [
{
"created": "Wed, 30 Nov 2005 15:06:30 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Panico",
"Giuliano",
""
],
[
"Serone",
"Marco",
""
]
] | The dynamics of five dimensional Wilson line phases at finite temperature is studied in the one-loop approximation. We show that at temperatures of order $T\sim 1/L$, where L is the length of the compact space, the gauge symmetry is always restored and the electroweak phase transition appears to be of first order. We f... |
1206.3989 | Jinfeng Liao | Jinfeng Liao and Edward Shuryak | Effect of Light Fermions on the Confinement Transition in QCD-like
Theories | 4 pages, 1 figure; few references added; close to the final published
version | null | 10.1103/PhysRevLett.109.152001 | null | hep-ph hep-lat hep-th nucl-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Dependence of the confinement transition parameters on the fermion content
provides information on the mechanism of confinement. Recent progress in
lattice gauge theories has allowed to study it for light flavor number $N_f\sim
O(10)$ and found this transition to shift toward significantly stronger
coupling. We propo... | [
{
"created": "Mon, 18 Jun 2012 17:04:03 GMT",
"version": "v1"
},
{
"created": "Mon, 12 Nov 2012 21:52:03 GMT",
"version": "v2"
}
] | 2015-06-05 | [
[
"Liao",
"Jinfeng",
""
],
[
"Shuryak",
"Edward",
""
]
] | Dependence of the confinement transition parameters on the fermion content provides information on the mechanism of confinement. Recent progress in lattice gauge theories has allowed to study it for light flavor number $N_f\sim O(10)$ and found this transition to shift toward significantly stronger coupling. We propose... |
2305.19073 | Zi-Yang Lin | Zi-Yang Lin, Jian-Bo Cheng, Bo-Lin Huang and Shi-Lin Zhu | $P_c$ states and their open-charm decays with the complex scaling method | 16 pages, 5 figures | Phys. Rev. D 108 (2023) 11, 114014 | 10.1103/PhysRevD.108.114014 | null | hep-ph hep-ex hep-lat nucl-th | http://creativecommons.org/licenses/by-nc-sa/4.0/ | A partial width formula is proposed using the analytical extension of the
wave function in momentum space. The distinction of the Riemann sheets is
explained from the perspective of the Schrodinger equation. The analytical form
in coordinate space and the partial width are derived subsequently. Then a
coupled-channel... | [
{
"created": "Tue, 30 May 2023 14:37:54 GMT",
"version": "v1"
}
] | 2023-12-19 | [
[
"Lin",
"Zi-Yang",
""
],
[
"Cheng",
"Jian-Bo",
""
],
[
"Huang",
"Bo-Lin",
""
],
[
"Zhu",
"Shi-Lin",
""
]
] | A partial width formula is proposed using the analytical extension of the wave function in momentum space. The distinction of the Riemann sheets is explained from the perspective of the Schrodinger equation. The analytical form in coordinate space and the partial width are derived subsequently. Then a coupled-channel a... |
1910.03984 | Valery Lyubovitskij | Thomas Gutsche, Valery E. Lyubovitskij | Structure and decays of hidden heavy pentaquarks | null | Phys. Rev. D 100, 094031 (2019) | 10.1103/PhysRevD.100.094031 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We study the hadronic molecular structure of hidden heavy pentaquarks - new
exotic states composed of charmed/bottom baryons and $D(D^*)/B(B^*)$ mesons.
Based on the observation of three pentaquark candidates $P_c^+(4312)$,
$P_c^+(4440)$, and $P_c^+(4457)$ by the LHCb Collaboration we consider the
classification of p... | [
{
"created": "Wed, 9 Oct 2019 13:42:02 GMT",
"version": "v1"
},
{
"created": "Wed, 27 Nov 2019 14:42:47 GMT",
"version": "v2"
}
] | 2019-11-28 | [
[
"Gutsche",
"Thomas",
""
],
[
"Lyubovitskij",
"Valery E.",
""
]
] | We study the hadronic molecular structure of hidden heavy pentaquarks - new exotic states composed of charmed/bottom baryons and $D(D^*)/B(B^*)$ mesons. Based on the observation of three pentaquark candidates $P_c^+(4312)$, $P_c^+(4440)$, and $P_c^+(4457)$ by the LHCb Collaboration we consider the classification of pos... |
hep-ph/9704306 | Heinz Konig | G. Couture, M. Frank and H. K\"onig | Doubly charged Higgsino contribution to the decays mu-->e photon and
mu-->3e and to the anomalous magnetic moment of the muon within the
left-right supersymmetric model | 13 pages, latex, 1 figure | Phys. Rev. D 56, 4219 (1997) | 10.1103/PhysRevD.56.4219 | UQAM-PHE-97-03, CUMQ/HEP 96 | hep-ph | null | We present a detailed and complete calculation of the doubly charged Higgsino
contribution to the decays mu--> e photon and mu--> 3e and to the anomalous
magnetic moment of the muon within the left-right supersymmetric model. We
include the mixing of the scalar partners of the left and right handed leptons,
and show ... | [
{
"created": "Sat, 12 Apr 1997 02:33:16 GMT",
"version": "v1"
}
] | 2016-08-25 | [
[
"Couture",
"G.",
""
],
[
"Frank",
"M.",
""
],
[
"König",
"H.",
""
]
] | We present a detailed and complete calculation of the doubly charged Higgsino contribution to the decays mu--> e photon and mu--> 3e and to the anomalous magnetic moment of the muon within the left-right supersymmetric model. We include the mixing of the scalar partners of the left and right handed leptons, and show th... |
hep-ph/9808378 | Boris Kopeliovich | B.Z. Kopeliovich (Heidelberg/Dubna), A. Schaefer (U. Regensburg), A.V.
Tarasov (Heidelberg/Dubna) | Bremsstrahlung of a Quark Propagating through a Nucleus | Appendix A is extended compared to the version to be published in
Phys.Rev.C | Phys.Rev. C59 (1999) 1609-1619 | 10.1103/PhysRevC.59.1609 | null | hep-ph nucl-th | null | The density of gluons produced in the central rapidity region of a heavy ion
collision is poorly known. We investigate the influence of the effects of
quantum coherence on the transverse momentum distribution of photons and gluons
radiated by a quark propagating through nuclear matter. We describe the case
that the r... | [
{
"created": "Thu, 20 Aug 1998 20:06:42 GMT",
"version": "v1"
},
{
"created": "Fri, 21 Aug 1998 18:30:05 GMT",
"version": "v2"
},
{
"created": "Wed, 21 Oct 1998 12:15:12 GMT",
"version": "v3"
},
{
"created": "Mon, 30 Nov 1998 13:04:45 GMT",
"version": "v4"
},
{
"c... | 2009-10-31 | [
[
"Kopeliovich",
"B. Z.",
"",
"Heidelberg/Dubna"
],
[
"Schaefer",
"A.",
"",
"U. Regensburg"
],
[
"Tarasov",
"A. V.",
"",
"Heidelberg/Dubna"
]
] | The density of gluons produced in the central rapidity region of a heavy ion collision is poorly known. We investigate the influence of the effects of quantum coherence on the transverse momentum distribution of photons and gluons radiated by a quark propagating through nuclear matter. We describe the case that the rad... |
1403.4594 | Paolo Gondolo | L. Visinelli, P. Gondolo | Axion cold dark matter in view of BICEP2 results | fixed colors in figure, references added | Phys. Rev. Lett. 113, 011802 (2014) | 10.1103/PhysRevLett.113.011802 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The properties of axions that constitute 100% of cold dark matter (CDM)
depend on the tensor-to-scalar ratio $r$ at the end of inflation. If
$r=0.20^{+0.07}_{-0.05}$ as reported by the BICEP2 collaboration, then "half"
of the CDM axion parameter space is ruled out. Namely, the Peccei-Quinn
symmetry must be broken aft... | [
{
"created": "Tue, 18 Mar 2014 19:56:43 GMT",
"version": "v1"
},
{
"created": "Wed, 19 Mar 2014 17:54:55 GMT",
"version": "v2"
}
] | 2014-07-09 | [
[
"Visinelli",
"L.",
""
],
[
"Gondolo",
"P.",
""
]
] | The properties of axions that constitute 100% of cold dark matter (CDM) depend on the tensor-to-scalar ratio $r$ at the end of inflation. If $r=0.20^{+0.07}_{-0.05}$ as reported by the BICEP2 collaboration, then "half" of the CDM axion parameter space is ruled out. Namely, the Peccei-Quinn symmetry must be broken after... |
0910.5483 | Markus Ahlers | M. Ahlers, L. A. Anchordoqui and M. C. Gonzalez-Garcia | Quantum Decoherence of Photons in the Presence of Hidden U(1)s | 8 pages, 9 figures | Phys.Rev.D81:085025,2010 | 10.1103/PhysRevD.81.085025 | YITP-SB-09-35 | hep-ph astro-ph.HE hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Many extensions of the standard model predict the existence of hidden sectors
that may contain unbroken abelian gauge groups. We argue that in the presence
of quantum decoherence photons may convert into hidden photons on sufficiently
long time scales and show that this effect is strongly constrained by CMB and
super... | [
{
"created": "Thu, 29 Oct 2009 16:22:23 GMT",
"version": "v1"
}
] | 2010-05-12 | [
[
"Ahlers",
"M.",
""
],
[
"Anchordoqui",
"L. A.",
""
],
[
"Gonzalez-Garcia",
"M. C.",
""
]
] | Many extensions of the standard model predict the existence of hidden sectors that may contain unbroken abelian gauge groups. We argue that in the presence of quantum decoherence photons may convert into hidden photons on sufficiently long time scales and show that this effect is strongly constrained by CMB and superno... |
1602.07770 | Gil Paz | Steven P. Dye, Matthew Gonderinger, Gil Paz | Elements of QED-NRQED Effective Field Theory: I. NLO scattering at
leading power | 15 pages, 3 figures. v2: text and references added, journal version | Phys. Rev. D 94, 013006 (2016) | 10.1103/PhysRevD.94.013006 | WSU-HEP-1601 | hep-ph nucl-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The proton radius puzzle, i.e. the large discrepancy in the extraction of the
proton charge radius between regular and muonic hydrogen, challenges our
understanding of the structure of the proton. It can also be an indication of a
new force that couples to muons, but not to electrons. An effective field
theory analys... | [
{
"created": "Thu, 25 Feb 2016 02:19:23 GMT",
"version": "v1"
},
{
"created": "Fri, 8 Jul 2016 20:17:58 GMT",
"version": "v2"
}
] | 2016-07-13 | [
[
"Dye",
"Steven P.",
""
],
[
"Gonderinger",
"Matthew",
""
],
[
"Paz",
"Gil",
""
]
] | The proton radius puzzle, i.e. the large discrepancy in the extraction of the proton charge radius between regular and muonic hydrogen, challenges our understanding of the structure of the proton. It can also be an indication of a new force that couples to muons, but not to electrons. An effective field theory analysis... |
1310.6582 | Atsushi Watanabe | Manfred Lindner, Daniel Schmidt, Atsushi Watanabe | Dark matter and U(1)' symmetry for the right-handed neutrinos | 16 pages, 4 figures | Phys. Rev. D 89, 013007 (2014) | 10.1103/PhysRevD.89.013007 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider a U(1)' gauge symmetry acting on three generations of
right-handed neutrinos. The U(1)' symmetry is broken at the TeV scale and its
remnant discrete symmetry makes one of the right-handed neutrinos stable. As a
natural consequence of the anomaly cancellation, the neutrino mass matrix
consists of a combina... | [
{
"created": "Thu, 24 Oct 2013 12:29:34 GMT",
"version": "v1"
},
{
"created": "Mon, 27 Jan 2014 17:12:58 GMT",
"version": "v2"
}
] | 2014-01-29 | [
[
"Lindner",
"Manfred",
""
],
[
"Schmidt",
"Daniel",
""
],
[
"Watanabe",
"Atsushi",
""
]
] | We consider a U(1)' gauge symmetry acting on three generations of right-handed neutrinos. The U(1)' symmetry is broken at the TeV scale and its remnant discrete symmetry makes one of the right-handed neutrinos stable. As a natural consequence of the anomaly cancellation, the neutrino mass matrix consists of a combinati... |
1603.04144 | Michael Maziashvili | Michael Maziashvili | Macroscopic detection of deformed QM by the harmonic oscillator | 4 pages | Annals of Physics 343, 545 (2017) | 10.1016/j.aop.2017.06.007 | null | hep-ph quant-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Based on the nonperturbative analysis, we show that the classical motion of
harmonic oscillator derived from the deformed QM is manifestly in contradiction
with observations. For this reason, we take an alternate way for estimating the
effect and discuss its possible observational manifestations in macrophysics.
| [
{
"created": "Mon, 14 Mar 2016 06:25:48 GMT",
"version": "v1"
}
] | 2017-07-11 | [
[
"Maziashvili",
"Michael",
""
]
] | Based on the nonperturbative analysis, we show that the classical motion of harmonic oscillator derived from the deformed QM is manifestly in contradiction with observations. For this reason, we take an alternate way for estimating the effect and discuss its possible observational manifestations in macrophysics. |
hep-ph/0002050 | Peter John | P. John and M.G. Schmidt | Do Stops Slow Down Electroweak Bubble Walls? | Numerical error corrected, result qualitatively unchanged | Nucl.Phys. B598 (2001) 291-305; Erratum-ibid. B648 (2003) 449-452 | 10.1016/S0550-3213(00)00768-9 | null | hep-ph | null | We compute the wall velocity in the MSSM. We therefore generalize the SM
equations of motion for bubble walls moving through a hot plasma at the
electroweak phase transition and calculate the friction terms which describe
the viscosity of the plasma. We give the general expressions and apply them to
a simple model wh... | [
{
"created": "Fri, 4 Feb 2000 13:50:54 GMT",
"version": "v1"
},
{
"created": "Tue, 5 Dec 2000 16:45:13 GMT",
"version": "v2"
},
{
"created": "Mon, 14 Oct 2002 16:37:34 GMT",
"version": "v3"
}
] | 2009-10-31 | [
[
"John",
"P.",
""
],
[
"Schmidt",
"M. G.",
""
]
] | We compute the wall velocity in the MSSM. We therefore generalize the SM equations of motion for bubble walls moving through a hot plasma at the electroweak phase transition and calculate the friction terms which describe the viscosity of the plasma. We give the general expressions and apply them to a simple model wher... |
2310.17598 | Davide Maria Tagliabue | Federica Devoto, Kirill Melnikov, Raoul R\"ontsch, Chiara
Signorile-Signorile, Davide Maria Tagliabue | A fresh look at the nested soft-collinear subtraction scheme: NNLO QCD
corrections to $N$-gluon final states in $q\bar{q}$ annihilation | 116 pages, 9 appendices, 1 figure, alphabetic index | null | null | TIF-UNIMI-2023-29, TTP23-050, P3H-23-077, OUTP-23-11P, MPP-2023-250 | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We describe how the nested soft-collinear subtraction scheme [1] can be used
to compute the next-to-next-to-leading order (NNLO) QCD corrections to the
production of an arbitrary number of gluonic jets in hadron collisions. We show
that the infrared subtraction terms can be combined into recurring structures
that in ... | [
{
"created": "Thu, 26 Oct 2023 17:20:57 GMT",
"version": "v1"
}
] | 2023-10-27 | [
[
"Devoto",
"Federica",
""
],
[
"Melnikov",
"Kirill",
""
],
[
"Röntsch",
"Raoul",
""
],
[
"Signorile-Signorile",
"Chiara",
""
],
[
"Tagliabue",
"Davide Maria",
""
]
] | We describe how the nested soft-collinear subtraction scheme [1] can be used to compute the next-to-next-to-leading order (NNLO) QCD corrections to the production of an arbitrary number of gluonic jets in hadron collisions. We show that the infrared subtraction terms can be combined into recurring structures that in ma... |
hep-ph/0012162 | Sheldon Stone | Sheldon Stone | Conference Summary - Beauty 2000 | 19 pages, 8 figures; to be published in Proceedings of Beauty 2000,
Kibbutz Maagan, Israel, September, 2000, edited by S. Erhan, Y. Rozen, and P.
E. Schlein, Nucl. Inst. Meth. A, 2001. Corrected references | Nucl.Instrum.Meth.A462:323-333,2001 | 10.1016/S0168-9002(01)00133-4 | null | hep-ph | null | I discuss some key issues covered at the Conference including physics goals,
current results on CKM angles, rare decays, status of $|V_{cb}|$ and
$|V_{ub}|$, CKM fits and progress on hardware.
| [
{
"created": "Wed, 13 Dec 2000 21:58:31 GMT",
"version": "v1"
},
{
"created": "Mon, 18 Dec 2000 19:46:27 GMT",
"version": "v2"
}
] | 2014-11-17 | [
[
"Stone",
"Sheldon",
""
]
] | I discuss some key issues covered at the Conference including physics goals, current results on CKM angles, rare decays, status of $|V_{cb}|$ and $|V_{ub}|$, CKM fits and progress on hardware. |
1907.11772 | Maria Vittoria Garzelli | Andrea Ceccarelli, Andrea Cioni, Maria Vittoria Garzelli, Piergiulio
Lenzi, Laura Redapi | Towards enhanced databases for High Energy Physics | *the HepData dump on which this work is based was kindly provided us
by K. Ellis, F. Krauss, G. Watt (IPPP Durham). 6 pages, 3 figures,to be
published as PoS (DIS2019) 223, in Proceedings of the XXVII International
Workshop on Deep Inelastic Scattering and Related Subjects, Torino Italy, 8 -
12 April 2019 | null | null | null | hep-ph physics.data-an | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The accumulation of a large amount of new experimental data at an impressive
rate at present and future collider experiments has led to important questions
concerning data storage and organization, their public access and usability, as
well as their efficient usage in order to discriminate between different
theories.... | [
{
"created": "Fri, 26 Jul 2019 19:45:54 GMT",
"version": "v1"
}
] | 2019-07-30 | [
[
"Ceccarelli",
"Andrea",
""
],
[
"Cioni",
"Andrea",
""
],
[
"Garzelli",
"Maria Vittoria",
""
],
[
"Lenzi",
"Piergiulio",
""
],
[
"Redapi",
"Laura",
""
]
] | The accumulation of a large amount of new experimental data at an impressive rate at present and future collider experiments has led to important questions concerning data storage and organization, their public access and usability, as well as their efficient usage in order to discriminate between different theories. F... |
2306.09963 | Marion Thomas | Alejo N. Rossia, Marion O. A. Thomas and Eleni Vryonidou | Diboson production in the SMEFT from gluon fusion | 31 + 16 pages, 14 figures, 23 tables, 6 appendices | null | null | null | hep-ph | http://creativecommons.org/licenses/by-nc-nd/4.0/ | Precision measurements of diboson production at the LHC is an important probe
of the limits of the Standard Model. The gluon-fusion channel of this process
offers a connection between the Higgs and top sectors. We study in a systematic
way gluon-induced diboson production in the Standard Model Effective Field
Theory.... | [
{
"created": "Fri, 16 Jun 2023 16:45:13 GMT",
"version": "v1"
}
] | 2023-06-19 | [
[
"Rossia",
"Alejo N.",
""
],
[
"Thomas",
"Marion O. A.",
""
],
[
"Vryonidou",
"Eleni",
""
]
] | Precision measurements of diboson production at the LHC is an important probe of the limits of the Standard Model. The gluon-fusion channel of this process offers a connection between the Higgs and top sectors. We study in a systematic way gluon-induced diboson production in the Standard Model Effective Field Theory. W... |
2301.09283 | Yang Xiao | Csaba Bal\'azs, Yang Xiao, Jin Min Yang, Yang Zhang | New vacuum stability limit from cosmological history | Pubulished version, 9 pages,4 figures, 1 table | null | null | null | hep-ph astro-ph.CO | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The stability of the electroweak vacuum imposes important constraints on new
physics models. Such new physics models may introduce one or more new thermal
phases with a lower free energy than that of the electroweak vacuum. In this
case, the early universe may stay or have already evolved into one of these
deeper vac... | [
{
"created": "Mon, 23 Jan 2023 05:59:44 GMT",
"version": "v1"
},
{
"created": "Wed, 10 Apr 2024 13:07:23 GMT",
"version": "v2"
}
] | 2024-04-11 | [
[
"Balázs",
"Csaba",
""
],
[
"Xiao",
"Yang",
""
],
[
"Yang",
"Jin Min",
""
],
[
"Zhang",
"Yang",
""
]
] | The stability of the electroweak vacuum imposes important constraints on new physics models. Such new physics models may introduce one or more new thermal phases with a lower free energy than that of the electroweak vacuum. In this case, the early universe may stay or have already evolved into one of these deeper vacuu... |
hep-ph/0001053 | shunzo Kumano | S. Kumano (Saga University) | Possible Studies of Parton Distributions at JHF: polarized pd Drell-Yan
process | 1+6 pages LATEX2e, amsmath.sty, epsfig.sty, wrapfig.sty, 1 eps
figure. Talk given at the Workshop on "Di-lepton Experiments at 50-GeV PS",
KEK, Japan, Oct.29-30, 1999, to be published in proceedings. Complete
postscript file is available at http://www-hs.phys.saga-u.ac.jp Email:
kumanos@cc.saga-u.ac.jp | null | null | SAGA-HE-156-99 | hep-ph hep-ex nucl-th | null | We discuss possible studies of parton distributions at the proposed 50-GeV PS
facility. First, comments are given in general on the importance of large-x
physics for finding new physics. Second, polarized deuteron reactions are
discussed in connection with new structure functions which are specific for a
spin-1 hadro... | [
{
"created": "Fri, 7 Jan 2000 02:55:49 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Kumano",
"S.",
"",
"Saga University"
]
] | We discuss possible studies of parton distributions at the proposed 50-GeV PS facility. First, comments are given in general on the importance of large-x physics for finding new physics. Second, polarized deuteron reactions are discussed in connection with new structure functions which are specific for a spin-1 hadron.... |
1610.09977 | Osamu Yasuda | Osamu Yasuda | Will atmospheric neutrino experiment at Hyper-Kamiokande see
non-standard interaction effects? | 5 pages, 2 figures. Talk at 18th International Workshop on Neutrino
Factories, Super beams and Beta beams (NuFact2016), August 21-27 2016, Quy
Nhon, Vietnam | null | null | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this talk we discuss the possibility to test the hypothesis, which has
been proposed to explain the tension between the mass-squared differences of
the solar neutrino and KamLAND experiments by the non-standard flavor-dependent
interaction in neutrino propagation, with the atmospheric neutrino observations
at the ... | [
{
"created": "Mon, 31 Oct 2016 15:37:49 GMT",
"version": "v1"
}
] | 2016-11-01 | [
[
"Yasuda",
"Osamu",
""
]
] | In this talk we discuss the possibility to test the hypothesis, which has been proposed to explain the tension between the mass-squared differences of the solar neutrino and KamLAND experiments by the non-standard flavor-dependent interaction in neutrino propagation, with the atmospheric neutrino observations at the fu... |
1710.08474 | H\'ector Novales-S\'anchez | H. Novales-S\'anchez, M. Salinas, J. J. Toscano | About heavy neutrinos: Lepton-flavor violation in decays of charged
leptons | Accepted for publication in Journal of Physics G, 26 pages, 12
figures, 4 tables, several new elements were added for this version of the
manuscript, the whole discussion was improved as well | null | 10.1088/1361-6471/aad53c | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The fundamental description of nature, beyond the Standard Model (SM), may
include heavy neutrinos that mix and thus allow processes in which lepton
flavor is not preserved. We investigate the impact of charged currents that
couple heavy gauge bosons to heavy neutrinos and SM leptons on
lepton-flavor-violating decays... | [
{
"created": "Mon, 23 Oct 2017 19:43:35 GMT",
"version": "v1"
},
{
"created": "Mon, 23 Jul 2018 15:55:33 GMT",
"version": "v2"
}
] | 2018-07-24 | [
[
"Novales-Sánchez",
"H.",
""
],
[
"Salinas",
"M.",
""
],
[
"Toscano",
"J. J.",
""
]
] | The fundamental description of nature, beyond the Standard Model (SM), may include heavy neutrinos that mix and thus allow processes in which lepton flavor is not preserved. We investigate the impact of charged currents that couple heavy gauge bosons to heavy neutrinos and SM leptons on lepton-flavor-violating decays o... |
hep-ph/9301296 | null | X. Artru | Probes of parton transversity | 4 pages, Tex, 3 figures (gathered in one and appended as Postscript
file), LYCEN/9301 | null | null | null | hep-ph | null | An inventory is made of the experiments which can measure the transversely
polarized quark distributions and fragmentation functions at leading twist.
(Contribution to the 10th International Symposium on High Energy Spin Physics,
Nagoya, Japan, Nov. 9-14, 1992)
| [
{
"created": "Mon, 1 Feb 1993 15:04:24 GMT",
"version": "v1"
},
{
"created": "Tue, 2 Feb 1993 11:10:55 GMT",
"version": "v2"
}
] | 2008-02-03 | [
[
"Artru",
"X.",
""
]
] | An inventory is made of the experiments which can measure the transversely polarized quark distributions and fragmentation functions at leading twist. (Contribution to the 10th International Symposium on High Energy Spin Physics, Nagoya, Japan, Nov. 9-14, 1992) |
hep-ph/0207211 | Mark Trodden | Antonio De Felice, Salah Nasri and Mark Trodden | Quintessential Baryogenesis | 22 pages, 1 figure, uses RevTeX | Phys.Rev. D67 (2003) 043509 | 10.1103/PhysRevD.67.043509 | SU-GP-02/7-2, SU-4252-766 | hep-ph astro-ph hep-th | null | The simplest explanation for early time acceleration (inflation) and the late
time acceleration indicated by recent data is that they have a common origin.
We investigate another generic cosmological implication of this possiblity,
that the baryon asymmetry of the universe may be generated in such models. We
identify... | [
{
"created": "Wed, 17 Jul 2002 19:33:36 GMT",
"version": "v1"
}
] | 2009-11-07 | [
[
"De Felice",
"Antonio",
""
],
[
"Nasri",
"Salah",
""
],
[
"Trodden",
"Mark",
""
]
] | The simplest explanation for early time acceleration (inflation) and the late time acceleration indicated by recent data is that they have a common origin. We investigate another generic cosmological implication of this possiblity, that the baryon asymmetry of the universe may be generated in such models. We identify s... |
2210.08436 | Xiaoyan Wang | Xiao-Yan Wang, Xiang-Jun Chen | Neutrino Oscillation Caused by Local Symmetry Broken | null | null | null | null | hep-ph | http://creativecommons.org/licenses/by/4.0/ | Neutrino flavor conversion is assumed to be induced by right-handed neutrino
flavor conversion via seesaw mechanism. Neutrino oscillation is the macroscopic
phenomenon before all neutrino flavor-flip interactions reaching equilibrium.
The model for the hypothesis is the extension by introducing large mass
Majorana ri... | [
{
"created": "Sun, 16 Oct 2022 03:56:11 GMT",
"version": "v1"
}
] | 2022-10-18 | [
[
"Wang",
"Xiao-Yan",
""
],
[
"Chen",
"Xiang-Jun",
""
]
] | Neutrino flavor conversion is assumed to be induced by right-handed neutrino flavor conversion via seesaw mechanism. Neutrino oscillation is the macroscopic phenomenon before all neutrino flavor-flip interactions reaching equilibrium. The model for the hypothesis is the extension by introducing large mass Majorana righ... |
hep-ph/0509098 | Bilenky Samoil | S. M. Bilenky | Neutrinoless Double $\beta$-Decay: Status and Future | A report at the International conference ``Non-Accelerator New
Physics'' NANP05 Dubna, Russia, June 20-25, 2005 | Phys.Atom.Nucl.69:2134-2140,2006 | 10.1134/S1063778806120192 | null | hep-ph | null | A brief summary of the status of neutrino masses, mixing and oscillations is
presented. Neutrinoless double $\beta$-decay is considered. Predictions for the
effective Majorana mass are reviewed. A possible test of the calculations of
nuclear matrix elements of the $0\nu\beta\beta$-decay is proposed.
| [
{
"created": "Sun, 11 Sep 2005 17:20:04 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Bilenky",
"S. M.",
""
]
] | A brief summary of the status of neutrino masses, mixing and oscillations is presented. Neutrinoless double $\beta$-decay is considered. Predictions for the effective Majorana mass are reviewed. A possible test of the calculations of nuclear matrix elements of the $0\nu\beta\beta$-decay is proposed. |
1002.2503 | Mannque Rho | Mannque Rho | Cold Compressed Baryonic Matter with Hidden Local Symmetry and
Holography | 15 pages, to appear in proceedings of "Strong Coupling Gauge Theories
in LHC Era (SCGT09)," Nagoya, Japan | Int.J.Mod.Phys.A25:5040-5054,2010 | 10.1142/S0217751X10050846 | null | hep-ph nucl-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | I describe a novel phase structure of cold dense baryonic matter predicted in
a hidden local symmetry approach anchored on gauge theory and in a holographic
dual approach based on the Sakai-Sugimoto model of string theory. This new
phase is populated with baryons with half-instanton quantum number in the
gravity sect... | [
{
"created": "Fri, 12 Feb 2010 09:20:02 GMT",
"version": "v1"
},
{
"created": "Sat, 13 Feb 2010 15:00:48 GMT",
"version": "v2"
}
] | 2010-12-09 | [
[
"Rho",
"Mannque",
""
]
] | I describe a novel phase structure of cold dense baryonic matter predicted in a hidden local symmetry approach anchored on gauge theory and in a holographic dual approach based on the Sakai-Sugimoto model of string theory. This new phase is populated with baryons with half-instanton quantum number in the gravity sector... |
hep-ph/9503255 | Jose Ramon | J.R. Espinosa | THE SUPERSYMMETRIC SINGLET MAJORON MODEL AND THE GENERAL UPPER BOUND ON
THE LIGHTEST HIGGS BOSON MASS | Version to be published in Phys. Lett. B. It includes some minor
modifications | Phys.Lett. B353 (1995) 243-256 | 10.1016/0370-2693(95)00543-T | DESY 95-037, IEM-FT-102/95 | hep-ph | null | An upper bound on the tree-level mass of the lightest Higgs boson of the
Supersymmetric Singlet Majoron Model is obtained. Contrary to some recent
claims, it is shown to be of the same form as the general mass bound previously
calculated for supersymmetric models with an extended Higgs sector.
Soft-breaking masses or... | [
{
"created": "Tue, 7 Mar 1995 14:28:11 GMT",
"version": "v1"
},
{
"created": "Wed, 24 May 1995 17:01:33 GMT",
"version": "v2"
}
] | 2009-10-28 | [
[
"Espinosa",
"J. R.",
""
]
] | An upper bound on the tree-level mass of the lightest Higgs boson of the Supersymmetric Singlet Majoron Model is obtained. Contrary to some recent claims, it is shown to be of the same form as the general mass bound previously calculated for supersymmetric models with an extended Higgs sector. Soft-breaking masses or e... |
2405.09226 | En Wang | Wen-Tao Lyu, Sheng-Chao Zhang, Guan-Ying Wang, Jia-Jun Wu, En Wang,
Li-Sheng Geng, and Ju-Jun Xie | Evidence of the low-lying baryon $\Sigma^*(1/2^-)$ in the process
$\Lambda_c^+\to \eta\pi^+\Lambda$ | 11 pages, 14 figures, comments are welcome | null | null | null | hep-ph | http://creativecommons.org/licenses/by/4.0/ | Motivated by the Belle measurements of the process $\Lambda_c^+\to
\eta\pi^+\Lambda$, we investigate this process by considering the contributions
from the $\Lambda(1670)$, $a_0(980)$, and $\Sigma(1385)$. In addition, we also
consider the predicted low-lying baryon $\Sigma^*(1/2^-)$. Our results
involving the $\Sigma... | [
{
"created": "Wed, 15 May 2024 10:06:27 GMT",
"version": "v1"
}
] | 2024-05-16 | [
[
"Lyu",
"Wen-Tao",
""
],
[
"Zhang",
"Sheng-Chao",
""
],
[
"Wang",
"Guan-Ying",
""
],
[
"Wu",
"Jia-Jun",
""
],
[
"Wang",
"En",
""
],
[
"Geng",
"Li-Sheng",
""
],
[
"Xie",
"Ju-Jun",
""
]
] | Motivated by the Belle measurements of the process $\Lambda_c^+\to \eta\pi^+\Lambda$, we investigate this process by considering the contributions from the $\Lambda(1670)$, $a_0(980)$, and $\Sigma(1385)$. In addition, we also consider the predicted low-lying baryon $\Sigma^*(1/2^-)$. Our results involving the $\Sigma^*... |
hep-ph/0511260 | Nicholas Setzer | R. N. Mohapatra, N. Setzer and S. Spinner | Predicting the Seesaw Scale in a Minimal Bottom-Up Extension of MSSM | 23 pages, no figures | Phys.Rev. D73 (2006) 075001 | 10.1103/PhysRevD.73.075001 | UMD-PP-05-053 | hep-ph | null | We analyze a minimal bottom-up seesaw scenario where we require the theory to
satisfy three phenomenological conditions: (i)it is supersymmetric; (ii) it has
a local B-L symmetry as part of the SU(2)_L x SU(2)_R x U(1)_{B-L} gauge theory
to implement the seesaw mechanism and (iii) B-L symmetry breaking is such that
i... | [
{
"created": "Tue, 22 Nov 2005 19:52:05 GMT",
"version": "v1"
}
] | 2009-11-11 | [
[
"Mohapatra",
"R. N.",
""
],
[
"Setzer",
"N.",
""
],
[
"Spinner",
"S.",
""
]
] | We analyze a minimal bottom-up seesaw scenario where we require the theory to satisfy three phenomenological conditions: (i)it is supersymmetric; (ii) it has a local B-L symmetry as part of the SU(2)_L x SU(2)_R x U(1)_{B-L} gauge theory to implement the seesaw mechanism and (iii) B-L symmetry breaking is such that it ... |
hep-ph/0610267 | Xu Qingjun | Manuel Drees, Wolfgang Hollik and Qingjun Xu | One-loop calculations of the decay of the next-to-lightest neutralino in
the MSSM | 32 pages, 11 figures | JHEP 0702:032,2007 | 10.1088/1126-6708/2007/02/032 | MPP-2006-117, Freiburg-THEP 06/16 | hep-ph | null | We calculate one-loop corrections to the decays of the next-to-lightest
neutralino $\tilde{\chi}_2^0$ into the lightest neutralino $\tilde{\chi}_1^0$
and two leptons; this includes diagrams where a real photon is emitted. In
cases where two-body decays $\tilde{\chi}_2^0 \to \tilde{l}^\pm_1 l^\mp \to
\tilde{\chi}_1^0 ... | [
{
"created": "Fri, 20 Oct 2006 13:00:43 GMT",
"version": "v1"
}
] | 2010-10-27 | [
[
"Drees",
"Manuel",
""
],
[
"Hollik",
"Wolfgang",
""
],
[
"Xu",
"Qingjun",
""
]
] | We calculate one-loop corrections to the decays of the next-to-lightest neutralino $\tilde{\chi}_2^0$ into the lightest neutralino $\tilde{\chi}_1^0$ and two leptons; this includes diagrams where a real photon is emitted. In cases where two-body decays $\tilde{\chi}_2^0 \to \tilde{l}^\pm_1 l^\mp \to \tilde{\chi}_1^0 l^... |
hep-ph/0004060 | Mikko Laine | A. Hart, M. Laine, O. Philipsen | Static correlation lengths in QCD at high temperatures and finite
densities | 34 pages; references, clarifications and a note on recent literature
added; to appear in Nucl.Phys.B | Nucl.Phys. B586 (2000) 443-474 | 10.1016/S0550-3213(00)00418-1 | null | hep-ph hep-lat nucl-th | null | We use a perturbatively derived effective field theory and three-dimensional
lattice simulations to determine the longest static correlation lengths in the
deconfined QCD plasma phase at high temperatures (T\gsim 2 Tc) and finite
densities (\mu\lsim 4 T). For vanishing chemical potential, we refine a
previous determi... | [
{
"created": "Thu, 6 Apr 2000 17:28:54 GMT",
"version": "v1"
},
{
"created": "Thu, 29 Jun 2000 13:33:36 GMT",
"version": "v2"
}
] | 2009-10-31 | [
[
"Hart",
"A.",
""
],
[
"Laine",
"M.",
""
],
[
"Philipsen",
"O.",
""
]
] | We use a perturbatively derived effective field theory and three-dimensional lattice simulations to determine the longest static correlation lengths in the deconfined QCD plasma phase at high temperatures (T\gsim 2 Tc) and finite densities (\mu\lsim 4 T). For vanishing chemical potential, we refine a previous determina... |
hep-ph/9612293 | null | Ikaros I. Bigi | Heavy Quark Expansions for Inclusive Heavy-Flavour Decays and the
Lifetimes of Charm and Beauty Hadrons | LATEX, 27 pages,Invited Lecture given at HQ96 "Heavy Quarks at Fixed
Target", St. Goar, Germany, Oct. 3 - 6, 1996, one reference added | null | null | UND-HEP-96-BIG06 | hep-ph | null | Inclusive heavy-flavour decays can be described through $1/m_Q$ expansions
derived from QCD with the help of an operator product expansion. I sketch their
methodology and apply them first to semileptonic B decays; $|V(cb)|$ can be
extracted from $\Gamma _{SL}(B)$ and $\bar B \to l \nu D^*$ with the result:
$|V(cb)|_{... | [
{
"created": "Mon, 9 Dec 1996 05:12:16 GMT",
"version": "v1"
},
{
"created": "Fri, 13 Dec 1996 03:05:45 GMT",
"version": "v2"
}
] | 2008-02-03 | [
[
"Bigi",
"Ikaros I.",
""
]
] | Inclusive heavy-flavour decays can be described through $1/m_Q$ expansions derived from QCD with the help of an operator product expansion. I sketch their methodology and apply them first to semileptonic B decays; $|V(cb)|$ can be extracted from $\Gamma _{SL}(B)$ and $\bar B \to l \nu D^*$ with the result: $|V(cb)|_{in... |
2405.20372 | Marco Vitti | Joshua Davies, Kay Sch\"onwald, Matthias Steinhauser and Marco Vitti | Three-loop corrections to Higgs boson pair production: reducible
contribution | 19 pages, 6 figures | null | null | LTH 1371, P3H-24-034, TTP24-016, ZU-TH 27/24 | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We compute three-loop corrections to the process $gg\to HH$ originating from
one-particle reducible diagrams. This requires the computation of two-loop
corrections to the gluon-gluon-Higgs vertex with an off-shell gluon. We
describe in detail our approach to obtain semi-analytic results for the vertex
form factors an... | [
{
"created": "Thu, 30 May 2024 18:00:01 GMT",
"version": "v1"
}
] | 2024-06-03 | [
[
"Davies",
"Joshua",
""
],
[
"Schönwald",
"Kay",
""
],
[
"Steinhauser",
"Matthias",
""
],
[
"Vitti",
"Marco",
""
]
] | We compute three-loop corrections to the process $gg\to HH$ originating from one-particle reducible diagrams. This requires the computation of two-loop corrections to the gluon-gluon-Higgs vertex with an off-shell gluon. We describe in detail our approach to obtain semi-analytic results for the vertex form factors and ... |
1502.00370 | Naveen Gaur | Giacomo Cacciapaglia, Aldo Deandrea, Naveen Gaur, Daisuke Harada,
Yasuhiro Okada, Luca Panizzi | Interplay of vector-like top partner multiplets in a realistic mixing
set-up | 50 pages, 38 figures, 6 tables | null | null | KEK-TH-1729, LYCEN-2014-09 | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The ATLAS and CMS collaborations at the LHC have performed analyses on the
existing data sets, studying the case of one vector-like fermion or multiplet
coupling to the standard model Yukawa sector. In the near future, with more
data available, these experimental collaborations will start to investigate
more realisti... | [
{
"created": "Mon, 2 Feb 2015 06:21:18 GMT",
"version": "v1"
}
] | 2015-02-03 | [
[
"Cacciapaglia",
"Giacomo",
""
],
[
"Deandrea",
"Aldo",
""
],
[
"Gaur",
"Naveen",
""
],
[
"Harada",
"Daisuke",
""
],
[
"Okada",
"Yasuhiro",
""
],
[
"Panizzi",
"Luca",
""
]
] | The ATLAS and CMS collaborations at the LHC have performed analyses on the existing data sets, studying the case of one vector-like fermion or multiplet coupling to the standard model Yukawa sector. In the near future, with more data available, these experimental collaborations will start to investigate more realistic ... |
hep-ph/9602383 | Carlo Giunti | S.M. Bilenky, C. Giunti and C. W. Kim | Possible tests of neutrino maximal mixing and comments on matter effects | RevTeX file, 11 pages including 1 figure. The postscript file is
available at http://www.to.infn.it/teorici/giunti/papers.html | Phys.Lett. B380 (1996) 331-336 | 10.1016/0370-2693(96)00484-4 | DFTT 6/96, SISSA Ref.28/96/EP | hep-ph | null | We show in a simple and general way that matter effects do not contribute to
the averaged value of the probabilities of transition of solar $\nu_e$'s into
other states in the case of maximal mixing of any number of massive neutrinos.
We also show that future solar neutrino experiments (Super-Kamiokande and SNO)
will ... | [
{
"created": "Fri, 23 Feb 1996 14:44:10 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Bilenky",
"S. M.",
""
],
[
"Giunti",
"C.",
""
],
[
"Kim",
"C. W.",
""
]
] | We show in a simple and general way that matter effects do not contribute to the averaged value of the probabilities of transition of solar $\nu_e$'s into other states in the case of maximal mixing of any number of massive neutrinos. We also show that future solar neutrino experiments (Super-Kamiokande and SNO) will al... |
1401.3333 | Dejan Stojkovic | De-Chang Dai and Dejan Stojkovic | Volume Renormalization and the Higgs | Published in Europhysics Letters, Volume 105, Issue 1, article id.
11002 (2014) | Europhysics Letters, 105, 11002 (2014) | 10.1209/0295-5075/105/11002 | null | hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Traditionally, Quantum Field Theory (QFT) treats particle excitations as
point-like objects, which is the source of ubiquitous divergences. We
demonstrate that a minimal modification of QFT with finite volume particles may
cure QFT of divergences and illuminate the physics behind the mathematical
construct of our the... | [
{
"created": "Tue, 14 Jan 2014 21:00:03 GMT",
"version": "v1"
},
{
"created": "Mon, 17 Feb 2014 20:35:41 GMT",
"version": "v2"
}
] | 2015-06-18 | [
[
"Dai",
"De-Chang",
""
],
[
"Stojkovic",
"Dejan",
""
]
] | Traditionally, Quantum Field Theory (QFT) treats particle excitations as point-like objects, which is the source of ubiquitous divergences. We demonstrate that a minimal modification of QFT with finite volume particles may cure QFT of divergences and illuminate the physics behind the mathematical construct of our theor... |
hep-ph/0307356 | Yudi Santoso | Yudi Santoso | The MSSM with Non-Universal Higgs Masses | 6 pages, 4 figures; to appear in the proceedings of the SUGRA-20
conference, Boston, March 17-20, 2003 | null | null | UMN-TH-2206/03, FTPI-MINN-03/17 | hep-ph | null | I review a generalization of CMSSM/mSUGRA model in which the Higgs masses are
let to be free, namely the Non Universal Higgs Masses (NUHM) model. In our
study we explore this model by employing constraints from cosmology as well as
from particle physics to restrict the parameter space. We also calculate the
neutralin... | [
{
"created": "Tue, 29 Jul 2003 20:28:33 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Santoso",
"Yudi",
""
]
] | I review a generalization of CMSSM/mSUGRA model in which the Higgs masses are let to be free, namely the Non Universal Higgs Masses (NUHM) model. In our study we explore this model by employing constraints from cosmology as well as from particle physics to restrict the parameter space. We also calculate the neutralino-... |
0710.3905 | Ze'ev Surujon | Omri Bahat-Treidel, Ze'ev Surujon | The (ir)Relevance of Initial Conditions in Soft Leptogenesis | v1: 12 pages; v2: typos corrected; v3: published version with new
discussions and references | JHEP 0811:046,2008 | 10.1088/1126-6708/2008/11/046 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We explore how the initial conditions affect the final lepton asymmetry in
Soft Leptogenesis. It has been usually assumed that the initial state is a
statistical mixture of sterile sneutrinos and anti-sneutrinos with equal
abundances. We calculate the lepton asymmetry due to the most general initial
mixture. The usua... | [
{
"created": "Sun, 21 Oct 2007 04:06:45 GMT",
"version": "v1"
},
{
"created": "Wed, 25 Jun 2008 18:48:35 GMT",
"version": "v2"
},
{
"created": "Mon, 17 Nov 2008 21:29:59 GMT",
"version": "v3"
}
] | 2010-02-03 | [
[
"Bahat-Treidel",
"Omri",
""
],
[
"Surujon",
"Ze'ev",
""
]
] | We explore how the initial conditions affect the final lepton asymmetry in Soft Leptogenesis. It has been usually assumed that the initial state is a statistical mixture of sterile sneutrinos and anti-sneutrinos with equal abundances. We calculate the lepton asymmetry due to the most general initial mixture. The usuall... |
1504.07549 | Hugo Serodio | Seung J. Lee and Hugo Ser\^odio | A Short Guide to Flavour Physics and CP Violation | 51 pages, 19 figures, paper submitted for publication in a CERN
Yellow Report (YR) | null | null | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We present the invited lectures given at the second Asia-Europe-Pacific
School of High-Energy Physics (AEPSHEP), which took place in Puri, India in
November 2014. The series of lectures aimed at graduate students in particle
experiment/theory, covering the very basics of flavor physics and CP violation,
some useful t... | [
{
"created": "Tue, 28 Apr 2015 16:08:47 GMT",
"version": "v1"
}
] | 2015-04-29 | [
[
"Lee",
"Seung J.",
""
],
[
"Serôdio",
"Hugo",
""
]
] | We present the invited lectures given at the second Asia-Europe-Pacific School of High-Energy Physics (AEPSHEP), which took place in Puri, India in November 2014. The series of lectures aimed at graduate students in particle experiment/theory, covering the very basics of flavor physics and CP violation, some useful the... |
hep-ph/0211098 | Marcus Mauser | A. Kadeer, J.G. K\"orner, M.C. Mauser | $ O(\alpha_s) $ corrections to polarized top decay into a charged Higgs
$ t(\uparrow) \to H^+ + b $ | 24 pages, 5 figures in the text, content modified, comments added,
appendices added, references updated, replaced with published version | Eur.Phys.J.C54:175-185,2008 | 10.1140/epjc/s10052-007-0510-5 | MZ-TH/02-14 | hep-ph | null | We calculate the $ O(\alpha_s) $ radiative corrections to polarized top quark
decay into a charged Higgs boson and a massive bottom quark in two variants of
the two-Higgs-doublet model. The radiative corrections to the polarization
asymmetry of the decay may become as large as $ 25 % $. We provide analytical
formulae... | [
{
"created": "Thu, 7 Nov 2002 13:45:33 GMT",
"version": "v1"
},
{
"created": "Mon, 25 Feb 2008 22:44:19 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Kadeer",
"A.",
""
],
[
"Körner",
"J. G.",
""
],
[
"Mauser",
"M. C.",
""
]
] | We calculate the $ O(\alpha_s) $ radiative corrections to polarized top quark decay into a charged Higgs boson and a massive bottom quark in two variants of the two-Higgs-doublet model. The radiative corrections to the polarization asymmetry of the decay may become as large as $ 25 % $. We provide analytical formulae f... |
hep-ph/9605447 | Manoranjan Guchait | Manuel Drees, R.M. Godbole, Monoranjan Guchait, Sreerup Raychaudhuri
and D.P. Roy | SUSY Contributions to R_b and Top Quark Decay | 16 pages, LaTeX, 4 figures enhanced postscript | Phys.Rev. D54 (1996) 5598-5605 | 10.1103/PhysRevD.54.5598 | MADPH-96-944, IISc-CTS-11/96, TIFR/TH/96-25 | hep-ph | null | Stop contributions to radiative corrections to R_b and the top quark decay
are analysed over the relevant MSSM parameter space. One sees a 30 % increase
in the former along with a similar drop in the latter in going from the
higgsino dominated to the mixed region. Consequently one can get a viable SUSY
contribution t... | [
{
"created": "Fri, 31 May 1996 10:17:22 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Drees",
"Manuel",
""
],
[
"Godbole",
"R. M.",
""
],
[
"Guchait",
"Monoranjan",
""
],
[
"Raychaudhuri",
"Sreerup",
""
],
[
"Roy",
"D. P.",
""
]
] | Stop contributions to radiative corrections to R_b and the top quark decay are analysed over the relevant MSSM parameter space. One sees a 30 % increase in the former along with a similar drop in the latter in going from the higgsino dominated to the mixed region. Consequently one can get a viable SUSY contribution to ... |
1403.4948 | Bob Zheng | Bobby S. Acharya, Gordon L. Kane, Piyush Kumar, Ran Lu, Bob Zheng | R-Parity Conservation from a Top Down Perspective | Citations added, accepted to JHEP with minor revisions | null | 10.1007/JHEP10(2014)001 | null | hep-ph hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | Motivated by results from the LHC and dark matter searches, we study the
possibility of phenomenologically viable R-parity violation in $SU(5)$ GUT
models from a top-down point of view. We show that in contrast to the more
model dependent bounds on the proton lifetime, the limits on neutrino masses
provide a robust, ... | [
{
"created": "Wed, 19 Mar 2014 20:01:03 GMT",
"version": "v1"
},
{
"created": "Tue, 26 Aug 2014 23:05:30 GMT",
"version": "v2"
}
] | 2015-06-19 | [
[
"Acharya",
"Bobby S.",
""
],
[
"Kane",
"Gordon L.",
""
],
[
"Kumar",
"Piyush",
""
],
[
"Lu",
"Ran",
""
],
[
"Zheng",
"Bob",
""
]
] | Motivated by results from the LHC and dark matter searches, we study the possibility of phenomenologically viable R-parity violation in $SU(5)$ GUT models from a top-down point of view. We show that in contrast to the more model dependent bounds on the proton lifetime, the limits on neutrino masses provide a robust, st... |
hep-ph/9209257 | null | Steven Weinberg | Three-Body Interactions Among Nucleons and Pions | 16 pages plus four figures, LATEX, Texas preprint UTTG-11-92 | Phys.Lett. B295 (1992) 114-121 | 10.1016/0370-2693(92)90099-P | null | hep-ph nucl-th | null | A chiral invariant effective Lagrangian may be used to calculate the
three-body interactions among low-energy pions and nucleons in terms of known
parameters. This method is illustrated by the calculation of the pion-nucleus
scattering length.
| [
{
"created": "Sun, 20 Sep 1992 15:43:39 GMT",
"version": "v1"
}
] | 2009-10-22 | [
[
"Weinberg",
"Steven",
""
]
] | A chiral invariant effective Lagrangian may be used to calculate the three-body interactions among low-energy pions and nucleons in terms of known parameters. This method is illustrated by the calculation of the pion-nucleus scattering length. |
hep-ph/0008094 | Thorsten Seidensticker | K.G. Chetyrkin and T. Seidensticker | Two Loop QCD Vertices and Three Loop MOM $\beta$ functions | LaTeX, 10 pages, corrected two references and some misprints | Phys.Lett. B495 (2000) 74-80 | 10.1016/S0370-2693(00)01217-X | null | hep-ph | null | We present numerical results for the two loop QCD corrections to the ghost
gluon vertex, the quark gluon vertex, and the triple gluon vertex in the
massless limit at the symmetric point. We restrict ourselves to the tensor
structures existing in the tree level. The corrections are used to examine
different coupling c... | [
{
"created": "Thu, 10 Aug 2000 11:19:11 GMT",
"version": "v1"
},
{
"created": "Tue, 29 Aug 2000 10:06:29 GMT",
"version": "v2"
}
] | 2009-10-31 | [
[
"Chetyrkin",
"K. G.",
""
],
[
"Seidensticker",
"T.",
""
]
] | We present numerical results for the two loop QCD corrections to the ghost gluon vertex, the quark gluon vertex, and the triple gluon vertex in the massless limit at the symmetric point. We restrict ourselves to the tensor structures existing in the tree level. The corrections are used to examine different coupling con... |
hep-ph/9805422 | Patricia Ball | Patricia Ball and V.M. Braun | Exclusive Semileptonic and Rare B-Meson Decays in QCD | 35 pages, 9 figures; English phrasing polished, lattice-data in Figs.
6 and 7 corrected; accepted for publication in PRD | Phys. Rev. D 58, 094016 (1998) | 10.1103/PhysRevD.58.094016 | CERN-TH/98-162 | hep-ph | null | We present the first complete results for the semileptonic and rare radiative
form factors of B-mesons weak decay into a light vector-meson (rho, omega, K*,
phi) in the light-cone sum-rule approach. The calculation includes radiative
corrections, higher-twist corrections and SU(3)-breaking effects. The
theoretical un... | [
{
"created": "Fri, 22 May 1998 12:25:00 GMT",
"version": "v1"
},
{
"created": "Fri, 10 Jul 1998 08:43:26 GMT",
"version": "v2"
}
] | 2016-08-25 | [
[
"Ball",
"Patricia",
""
],
[
"Braun",
"V. M.",
""
]
] | We present the first complete results for the semileptonic and rare radiative form factors of B-mesons weak decay into a light vector-meson (rho, omega, K*, phi) in the light-cone sum-rule approach. The calculation includes radiative corrections, higher-twist corrections and SU(3)-breaking effects. The theoretical unce... |
hep-ph/0212078 | Sven Menke | Stanley J. Brodsky (1), Sven Menke (1 and 2), Carlos Merino (1 and 3),
Johan Rathsman (4) ((1) SLAC, Stanford University, (2) MPI fuer Physik,
Muenchen, (3) Department of Particle Physics, University of Santiago de
Compostela, (4) High Energy Physics, Uppsala University) | On the Behavior of the Effective QCD Coupling alpha_tau(s) at Low Scales | 15 pages, 4 figures, submitted to Physical Review D, added
references, some text added, no results nor figures changed | Phys.Rev.D67:055008,2003 | 10.1103/PhysRevD.67.055008 | US-FT/4-02, MPI-PhE/2002-16, SLAC-PUB-9559, TSL/ISV-2002-0267 | hep-ph hep-ex hep-th | null | The hadronic decays of the tau lepton can be used to determine the effective
charge alpha_tau(m^2_tau') for a hypothetical tau-lepton with mass in the range
0 < m_tau' < m_tau. This definition provides a fundamental definition of the
QCD coupling at low mass scales. We study the behavior of alpha_tau at low mass
scal... | [
{
"created": "Thu, 5 Dec 2002 08:23:49 GMT",
"version": "v1"
},
{
"created": "Wed, 11 Dec 2002 08:45:10 GMT",
"version": "v2"
},
{
"created": "Thu, 23 Jan 2003 15:05:20 GMT",
"version": "v3"
}
] | 2008-11-26 | [
[
"Brodsky",
"Stanley J.",
"",
"1 and 2"
],
[
"Menke",
"Sven",
"",
"1 and 2"
],
[
"Merino",
"Carlos",
"",
"1 and 3"
],
[
"Rathsman",
"Johan",
""
]
] | The hadronic decays of the tau lepton can be used to determine the effective charge alpha_tau(m^2_tau') for a hypothetical tau-lepton with mass in the range 0 < m_tau' < m_tau. This definition provides a fundamental definition of the QCD coupling at low mass scales. We study the behavior of alpha_tau at low mass scales... |
hep-ph/9507331 | Christoph Adam | C. Adam | The Schwinger Mass in the Massive Schwinger Model | Latex, 7 pages, no figures | Phys. Lett. B382 (1996) 383 | 10.1016/0370-2693(96)00695-8 | BUTP-95/27 | hep-ph hep-th | null | We derive a systematic procedure to compute Green functions for the massive
Schwinger model via a perturbation expansion in the fermion mass. The known
exact solution of the massless Schwinger model is used as a starting point. We
compute the corrections to the Schwinger mass up to second order.
| [
{
"created": "Tue, 18 Jul 1995 16:30:12 GMT",
"version": "v1"
}
] | 2009-10-28 | [
[
"Adam",
"C.",
""
]
] | We derive a systematic procedure to compute Green functions for the massive Schwinger model via a perturbation expansion in the fermion mass. The known exact solution of the massless Schwinger model is used as a starting point. We compute the corrections to the Schwinger mass up to second order. |
0708.0475 | Antonino Di Piazza | A. Di Piazza, K. Z. Hatsagortsyan, and C. H. Keitel | Non-perturbative vacuum-polarization effects in proton-laser collisions | 5 pages, 2 figures | Phys.Rev.Lett.100:010403,2008 | 10.1103/PhysRevLett.100.010403 | null | hep-ph physics.atom-ph | null | In the collision of a high-energy proton beam and a strong laser field,
merging of the laser photons can occur due to the polarization of vacuum. The
probability of photon merging is calculated by accounting exactly for the laser
field and presents a highly non-perturbative dependence on the laser intensity
and frequ... | [
{
"created": "Fri, 3 Aug 2007 09:08:40 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Di Piazza",
"A.",
""
],
[
"Hatsagortsyan",
"K. Z.",
""
],
[
"Keitel",
"C. H.",
""
]
] | In the collision of a high-energy proton beam and a strong laser field, merging of the laser photons can occur due to the polarization of vacuum. The probability of photon merging is calculated by accounting exactly for the laser field and presents a highly non-perturbative dependence on the laser intensity and frequen... |
hep-ph/0110230 | Peter Kroll | P. Kroll (Wuppertal Univ.) | The transition of virtual photons into pseudoscalar mesons | 4 pages, 1 figure (using LATEX with ws-p8-50x6-00.cls), talk
presented at the International Conference on the Structure and Interactions
of the Photon (PHOTON2001), Ascona, September 2001 | null | 10.1142/9789812777157_0049 | null | hep-ph | null | The possibility to constrain the meson distribution amplitude from the
transitions of virtual photons to pseudoscalar mesons is investigated. It is
shown that for a large range in the two photon virtualities the transition form
factors are essentially independent of the distribution amplitudes. This in
turn entails p... | [
{
"created": "Wed, 17 Oct 2001 11:48:58 GMT",
"version": "v1"
}
] | 2017-08-23 | [
[
"Kroll",
"P.",
"",
"Wuppertal Univ."
]
] | The possibility to constrain the meson distribution amplitude from the transitions of virtual photons to pseudoscalar mesons is investigated. It is shown that for a large range in the two photon virtualities the transition form factors are essentially independent of the distribution amplitudes. This in turn entails par... |
hep-ph/0011019 | Ariel Megevand | Ariel Megevand | Effect of reheating on electroweak baryogenesis | 4 pages, 3 figures. References added. Revised version to be published
in Phys.Rev.D | Phys.Rev. D64 (2001) 027303 | 10.1103/PhysRevD.64.027303 | null | hep-ph astro-ph | null | The latent heat released during the expansion of bubbles in the electroweak
phase transition reheats the plasma and causes the bubble growth to slow down.
This decrease of the bubble wall velocity affects the result of electroweak
baryogenesis. Since the efficiency of baryogenesis peaks for a wall velocity
$\sim 10^{... | [
{
"created": "Wed, 1 Nov 2000 21:39:47 GMT",
"version": "v1"
},
{
"created": "Sun, 12 Nov 2000 15:11:35 GMT",
"version": "v2"
},
{
"created": "Tue, 24 Apr 2001 12:47:49 GMT",
"version": "v3"
}
] | 2009-10-31 | [
[
"Megevand",
"Ariel",
""
]
] | The latent heat released during the expansion of bubbles in the electroweak phase transition reheats the plasma and causes the bubble growth to slow down. This decrease of the bubble wall velocity affects the result of electroweak baryogenesis. Since the efficiency of baryogenesis peaks for a wall velocity $\sim 10^{-2... |
1502.07879 | Vladimir Grichine M | V.M. Grichine | Simulation of diffraction dissociation in quark-diquark representation | 6 pages, 12 figures | null | null | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | A low mass single diffraction dissociation mode based on the quark-diquark
representation of hadron-nucleon interaction is proposed. The mass spectra of
nucleon-pion system are compared with experimental data and predictions of
other models. The hadron-nucleus single-diffraction cross-sections are
calculated in the f... | [
{
"created": "Fri, 27 Feb 2015 12:35:06 GMT",
"version": "v1"
}
] | 2015-03-02 | [
[
"Grichine",
"V. M.",
""
]
] | A low mass single diffraction dissociation mode based on the quark-diquark representation of hadron-nucleon interaction is proposed. The mass spectra of nucleon-pion system are compared with experimental data and predictions of other models. The hadron-nucleus single-diffraction cross-sections are calculated in the fra... |
1905.10234 | Rui Santos | P.M. Ferreira, Margarete M\"uhlleitner, Rui Santos, Georg Weiglein,
Jonas Wittbrodt | Vacuum Instabilities in the N2HDM | 23 pages, 5 figures, 3 tables | null | 10.1007/JHEP09(2019)006 | DESY 19-085, KA-TP-07-2019 | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The Higgs sector of the Next-to-Minimal Two-Higgs-Doublet Model (N2HDM) is
obtained from the Two-Higgs-Doublet Model (2HDM) containing two complex Higgs
doublets, by adding a real singlet field. In this paper, we analyse the vacuum
structure of the N2HDM with respect to the possibility of vacuum instabilities.
We sho... | [
{
"created": "Fri, 24 May 2019 13:42:51 GMT",
"version": "v1"
}
] | 2019-10-02 | [
[
"Ferreira",
"P. M.",
""
],
[
"Mühlleitner",
"Margarete",
""
],
[
"Santos",
"Rui",
""
],
[
"Weiglein",
"Georg",
""
],
[
"Wittbrodt",
"Jonas",
""
]
] | The Higgs sector of the Next-to-Minimal Two-Higgs-Doublet Model (N2HDM) is obtained from the Two-Higgs-Doublet Model (2HDM) containing two complex Higgs doublets, by adding a real singlet field. In this paper, we analyse the vacuum structure of the N2HDM with respect to the possibility of vacuum instabilities. We show ... |
hep-ph/0005042 | Wanders | G. Wanders | The role of the input in Roy's equations for pion-pion scattering | 33 pages, 8 figures | Eur.Phys.J.C17:323-336,2000 | 10.1007/s100520000459 | null | hep-ph | null | The Roy equations determine the S- and P-wave pion-pion phase shifts on a low
energy interval. They allow the derivation of threshold parameters from
experimental data. We examine the solutions of these equations that are in the
neighborhood of a given solution by means of a linearization procedure. An
updated survey... | [
{
"created": "Thu, 4 May 2000 18:53:51 GMT",
"version": "v1"
}
] | 2009-01-07 | [
[
"Wanders",
"G.",
""
]
] | The Roy equations determine the S- and P-wave pion-pion phase shifts on a low energy interval. They allow the derivation of threshold parameters from experimental data. We examine the solutions of these equations that are in the neighborhood of a given solution by means of a linearization procedure. An updated survey o... |
1903.11624 | Andrey Tarasov | Andrey Tarasov and Raju Venugopalan | Structure functions at small x from world-lines. I: Unpolarized
distributions | 29 pages, 7 figures | Phys. Rev. D 100, 054007 (2019) | 10.1103/PhysRevD.100.054007 | null | hep-ph hep-th nucl-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The world-line representation of quantum field theory is a powerful framework
for the computation of perturbative multi-leg Feynman amplitudes. In
particular, in gauge theories, it provides an efficient way, via point particle
Grassmann functional integrals, to compute spinor and color traces in these
amplitudes. Fur... | [
{
"created": "Wed, 27 Mar 2019 18:05:32 GMT",
"version": "v1"
},
{
"created": "Thu, 5 Sep 2019 23:07:14 GMT",
"version": "v2"
}
] | 2019-09-18 | [
[
"Tarasov",
"Andrey",
""
],
[
"Venugopalan",
"Raju",
""
]
] | The world-line representation of quantum field theory is a powerful framework for the computation of perturbative multi-leg Feynman amplitudes. In particular, in gauge theories, it provides an efficient way, via point particle Grassmann functional integrals, to compute spinor and color traces in these amplitudes. Furth... |
hep-ph/9811339 | null | D. Falcone | Lepton mass matrices from a quark-lepton analogy | 11 pages LaTex, no figures | null | null | DSF-T-98/41 | hep-ph | null | We study the implications of having a similarity between quark and lepton
mixing in the Dirac sector of the Standard Model plus the right-handed
neutrino. This enable us to describe all masses and mixings in the Dirac sector
in terms of only five parameters: three mass scales $m_b$, $m_{\tau}$ and
$m_t$, one paramete... | [
{
"created": "Mon, 16 Nov 1998 09:24:32 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Falcone",
"D.",
""
]
] | We study the implications of having a similarity between quark and lepton mixing in the Dirac sector of the Standard Model plus the right-handed neutrino. This enable us to describe all masses and mixings in the Dirac sector in terms of only five parameters: three mass scales $m_b$, $m_{\tau}$ and $m_t$, one parameter ... |
2004.05402 | Ruben Flores | M. J. Sanchez-Glez, A. Martinez, C. Juarez-Leon, M. Neri, J. J.
Torres, Ruben Flores-Mendieta | Precision radiative corrections to the muon polarization in the
semileptonic decay of a charged kaon | 20 pages, 4 figures, 3 tables | null | null | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | An expression for the Dalitz plot of the semileptonic decay of a charged
kaon, including radiative corrections to order O[\alpha \pi)(q/M_1)], where q
is the four-momentum transfer and M_1 is the mass of the decaying kaon, is
obtained. Contributions of both the three- and four-body regions are accounted
for. Besides,... | [
{
"created": "Sat, 11 Apr 2020 13:40:46 GMT",
"version": "v1"
}
] | 2020-04-14 | [
[
"Sanchez-Glez",
"M. J.",
""
],
[
"Martinez",
"A.",
""
],
[
"Juarez-Leon",
"C.",
""
],
[
"Neri",
"M.",
""
],
[
"Torres",
"J. J.",
""
],
[
"Flores-Mendieta",
"Ruben",
""
]
] | An expression for the Dalitz plot of the semileptonic decay of a charged kaon, including radiative corrections to order O[\alpha \pi)(q/M_1)], where q is the four-momentum transfer and M_1 is the mass of the decaying kaon, is obtained. Contributions of both the three- and four-body regions are accounted for. Besides, t... |
1103.4036 | Poulose Poulose Dr. | Satendra Kumar, P. Poulose | Study of Single W production in e-gamma collisions through the decay
lepton spectrum to probe gamma-WW couplings | Typos corrected, discussion added in section 2 for clarity, error in
fig.2 corrected, figures 7 and 8 replaced with better resolution | null | 10.1007/s12043-012-0433-z | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We investigate the effect of anomalous gamma-W-W couplings in e-gamma --> nu
W through the angular and energy spectrum of the secondary leptons. Within the
narrow-width approximation, a semi-analytical study of the secondary lepton
energy-angle double distribution is considered. Utility of observables derived
from th... | [
{
"created": "Mon, 21 Mar 2011 14:42:26 GMT",
"version": "v1"
},
{
"created": "Thu, 24 Mar 2011 12:50:41 GMT",
"version": "v2"
}
] | 2015-05-27 | [
[
"Kumar",
"Satendra",
""
],
[
"Poulose",
"P.",
""
]
] | We investigate the effect of anomalous gamma-W-W couplings in e-gamma --> nu W through the angular and energy spectrum of the secondary leptons. Within the narrow-width approximation, a semi-analytical study of the secondary lepton energy-angle double distribution is considered. Utility of observables derived from this... |
1405.1937 | Aaron Pierce | Aaron Pierce and Zhengkang Zhang | Hidden Dipole Dark Matter | 23 pages, 4 figures | Phys. Rev. D 90, 015026 (2014) | 10.1103/PhysRevD.90.015026 | MCTP-14-11 | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider models where a hidden U(1)' interacts with the Standard Model via
kinetic mixing. We assume the dark matter is neutral under this U(1)', but
interacts with it via higher dimension operators. In particular, we consider a
hidden dipole operator for fermionic dark matter, and charge radius and
Rayleigh opera... | [
{
"created": "Thu, 8 May 2014 14:22:23 GMT",
"version": "v1"
}
] | 2014-07-30 | [
[
"Pierce",
"Aaron",
""
],
[
"Zhang",
"Zhengkang",
""
]
] | We consider models where a hidden U(1)' interacts with the Standard Model via kinetic mixing. We assume the dark matter is neutral under this U(1)', but interacts with it via higher dimension operators. In particular, we consider a hidden dipole operator for fermionic dark matter, and charge radius and Rayleigh operato... |
hep-ph/9806352 | Gerhard Kulzinger | G.Kulzinger, H.G.Dosch and H.J.Pirner | Diffractive photo- and leptoproduction of vector mesons $\rho$, $\rho'$
and $\rho''$ | 28 pages, LaTeX2e, 16 ps/eps figures included, accepted for
publication in Eur.Phys.J.C; revised v2: one reference added, one typo
corrected | Eur.Phys.J.C7:73-86,1999 | 10.1007/s100529800986 | null | hep-ph | null | We calculate diffractive photo- and leptoproduction of $\rho$-, $\rho'$- and
$\rho''$-mesons. The incoming photon dissociates into a $q\bar{q}$-dipole which
scatters on the nucleon and transforms into a vector meson state. The
scattering amplitude is calculated in non-perturbative QCD with the model of
the stochastic... | [
{
"created": "Fri, 12 Jun 1998 16:25:04 GMT",
"version": "v1"
},
{
"created": "Thu, 13 Aug 1998 11:36:07 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Kulzinger",
"G.",
""
],
[
"Dosch",
"H. G.",
""
],
[
"Pirner",
"H. J.",
""
]
] | We calculate diffractive photo- and leptoproduction of $\rho$-, $\rho'$- and $\rho''$-mesons. The incoming photon dissociates into a $q\bar{q}$-dipole which scatters on the nucleon and transforms into a vector meson state. The scattering amplitude is calculated in non-perturbative QCD with the model of the stochastic v... |
hep-ph/0702097 | Per Osland | Abdul Wahab El Kaffas, Odd Magne Ogreid, Per Osland | CP Violation, Stability and Unitarity of the Two Higgs Doublet Model | 9 pages, Contribution to "FANS2006", to be published in " Nonlinear
Phenomena in Complex Systems" | Nonlin.Phenom.ComplexSyst.10:347-357,2007 | null | null | hep-ph | null | The Two-Higgs-Doublet Model is considered, in its CP-non-conserving version.
It is shown quantitatively how vacuum stability and tree-level unitarity in the
Higgs-Higgs-scattering sector constrain the parameter space of the model. In
particular, at high values of tanbeta, the model violates unitarity, unless
some of ... | [
{
"created": "Fri, 9 Feb 2007 11:28:42 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Kaffas",
"Abdul Wahab El",
""
],
[
"Ogreid",
"Odd Magne",
""
],
[
"Osland",
"Per",
""
]
] | The Two-Higgs-Doublet Model is considered, in its CP-non-conserving version. It is shown quantitatively how vacuum stability and tree-level unitarity in the Higgs-Higgs-scattering sector constrain the parameter space of the model. In particular, at high values of tanbeta, the model violates unitarity, unless some of th... |
0906.1734 | Frank Michler | F. Michler, B. Schenke, C. Greiner | Finite lifetime effects on the photon production from a quark-gluon
plasma | Contributed to the proceedings of the XLVII International Winter
Meeting on Nuclear Physics, Bormio (Italy), Jan. 26-30, 2009 | null | null | null | hep-ph nucl-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We use the real-time Keldysh formalism to investigate finite lifetime effects
on the photon emission from a quark-gluon plasma (QGP). We provide an ansatz
which eliminates the divergent contribution from the vacuum polarization and
renders the photon spectrum UV-finite if the time evolution of the QGP is
described in... | [
{
"created": "Tue, 9 Jun 2009 14:05:09 GMT",
"version": "v1"
}
] | 2009-06-10 | [
[
"Michler",
"F.",
""
],
[
"Schenke",
"B.",
""
],
[
"Greiner",
"C.",
""
]
] | We use the real-time Keldysh formalism to investigate finite lifetime effects on the photon emission from a quark-gluon plasma (QGP). We provide an ansatz which eliminates the divergent contribution from the vacuum polarization and renders the photon spectrum UV-finite if the time evolution of the QGP is described in a... |
1106.1547 | Gudrun Hiller | Gudrun Hiller | The Pheno-analysis of B-> K(*) mu^+ mu^- decays in 2011 plus | Prepared for the 2011 Moriond Electroweak session, March 13-20, 2011;
6 pages | null | null | DO-TH 11/14 | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We report on recent developments in the phenomenology of exclusive b -> s
mu^+ mu^- decays in testing the standard model and explore its borders: the
benefits of the region of large dimuon invariant masses and the exploitation of
the angular distributions. Consequences of model-independent analyses from
current and f... | [
{
"created": "Wed, 8 Jun 2011 12:21:01 GMT",
"version": "v1"
}
] | 2011-06-09 | [
[
"Hiller",
"Gudrun",
""
]
] | We report on recent developments in the phenomenology of exclusive b -> s mu^+ mu^- decays in testing the standard model and explore its borders: the benefits of the region of large dimuon invariant masses and the exploitation of the angular distributions. Consequences of model-independent analyses from current and fut... |
hep-ph/0006289 | Nadareishvili Temur | A.A.Khelashvili | Logarithmic Potential Model of Quigg and Rosner as a Generalization of
Naive Quark Model | 5 pages | null | null | TSU HEPI 2000-03 | hep-ph | null | Exploiting the explicit mass formulae for logarithmic potential model of
Quigg and Rosner it is shown that at least on the level of mass-relations this
model reproduces the naive quark model relations and generalizes the last one
in case of highly non-trivial potential. Generalization includes the relations
for highe... | [
{
"created": "Mon, 26 Jun 2000 09:26:48 GMT",
"version": "v1"
}
] | 2007-05-23 | [
[
"Khelashvili",
"A. A.",
""
]
] | Exploiting the explicit mass formulae for logarithmic potential model of Quigg and Rosner it is shown that at least on the level of mass-relations this model reproduces the naive quark model relations and generalizes the last one in case of highly non-trivial potential. Generalization includes the relations for higher ... |
hep-ph/0410130 | York Schroder | Y. Schroder (Bielefeld U.) | Evading the Infrared Problem of Thermal QCD | To appear in the proceedings of SEWM04, Helsinki, Finland, 16-19 Jun
2004 | null | 10.1142/9789812702159_0035 | null | hep-ph | null | Due to asymptotic freedom, QCD is guaranteed to be accessible to perturbative
methods at asymptotically high temperatures. However, in 1979 Linde has pointed
out the existence of an "infrared wall", beyond which an infinite number of
Feynman diagrams contribute. Following a proposal by Braaten and Nieto, it is
shown ... | [
{
"created": "Fri, 8 Oct 2004 13:06:19 GMT",
"version": "v1"
}
] | 2017-08-23 | [
[
"Schroder",
"Y.",
"",
"Bielefeld U."
]
] | Due to asymptotic freedom, QCD is guaranteed to be accessible to perturbative methods at asymptotically high temperatures. However, in 1979 Linde has pointed out the existence of an "infrared wall", beyond which an infinite number of Feynman diagrams contribute. Following a proposal by Braaten and Nieto, it is shown ex... |
1104.0873 | FuKun Xu | Fukun Xu, Hong Mao, Tamal K. Mukherjee, and Mei Huang | Dressed Polyakov loop and flavor dependent phase transitions | 9 pages, 9 figures; Version accepted in Phys. Rev. D | null | 10.1103/PhysRevD.84.074009 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The chiral condensate and dressed Polyakov loop at finite temperature and
density have been investigated in the framework of Nf = 2+1 Nambu-Jona-Lasinio
(NJL) model with two degenerate u, d quarks and one strange quark. In the case
of explicit chiral symmetry breaking with physical quark masses, it is found
that the ... | [
{
"created": "Tue, 5 Apr 2011 15:49:07 GMT",
"version": "v1"
},
{
"created": "Wed, 6 Apr 2011 08:16:45 GMT",
"version": "v2"
},
{
"created": "Sat, 3 Sep 2011 11:15:39 GMT",
"version": "v3"
}
] | 2015-05-27 | [
[
"Xu",
"Fukun",
""
],
[
"Mao",
"Hong",
""
],
[
"Mukherjee",
"Tamal K.",
""
],
[
"Huang",
"Mei",
""
]
] | The chiral condensate and dressed Polyakov loop at finite temperature and density have been investigated in the framework of Nf = 2+1 Nambu-Jona-Lasinio (NJL) model with two degenerate u, d quarks and one strange quark. In the case of explicit chiral symmetry breaking with physical quark masses, it is found that the ph... |
0801.4389 | Frank J. Petriello | Frank Petriello, Seth Quackenbush | Measuring Z' couplings at the LHC | 22 pgs., 6 figs; refs and discussion added | Phys.Rev.D77:115004,2008 | 10.1103/PhysRevD.77.115004 | null | hep-ph | null | We study the properties of potential new Z' gauge bosons produced through the
Drell-Yan mechanism at the LHC. Our analysis is performed using a fully
differential next-to-leading order QCD calculation with spin correlations,
interference effects, and experimental acceptances included. We examine the
distinguishabilit... | [
{
"created": "Mon, 28 Jan 2008 22:07:12 GMT",
"version": "v1"
},
{
"created": "Fri, 11 Apr 2008 21:14:46 GMT",
"version": "v2"
}
] | 2008-11-26 | [
[
"Petriello",
"Frank",
""
],
[
"Quackenbush",
"Seth",
""
]
] | We study the properties of potential new Z' gauge bosons produced through the Drell-Yan mechanism at the LHC. Our analysis is performed using a fully differential next-to-leading order QCD calculation with spin correlations, interference effects, and experimental acceptances included. We examine the distinguishability ... |
hep-ph/9906297 | Carl Albright | Carl H. Albright (Northern Illinois U./Fermilab), S.M. Barr (Bartol
Research Institute) | Bimaximal Mixing in an SO(10) Minimal Higgs Model | 10 pages, LaTeX, several references added | Phys.Lett.B461:218-223,1999 | 10.1016/S0370-2693(99)00854-0 | BA-99-49, FERMILAB-Pub-99/159-T | hep-ph | null | An SO(10) SUSY GUT model was previously presented based on a minimal set of
Higgs fields. The quark and lepton mass matrices derived fitted the data
extremely well and led to large mixing of muon- and tau-neutrinos in agreement
with the atmospheric neutrino data and to the small-angle MSW solution for the
solar neutr... | [
{
"created": "Tue, 8 Jun 1999 21:33:30 GMT",
"version": "v1"
},
{
"created": "Thu, 24 Jun 1999 16:54:55 GMT",
"version": "v2"
}
] | 2011-05-12 | [
[
"Albright",
"Carl H.",
"",
"Northern Illinois U./Fermilab"
],
[
"Barr",
"S. M.",
"",
"Bartol\n Research Institute"
]
] | An SO(10) SUSY GUT model was previously presented based on a minimal set of Higgs fields. The quark and lepton mass matrices derived fitted the data extremely well and led to large mixing of muon- and tau-neutrinos in agreement with the atmospheric neutrino data and to the small-angle MSW solution for the solar neutrin... |
1108.2522 | Piotr Lebiedowicz | Piotr Lebiedowicz, Roman Pasechnik, Antoni Szczurek | Exclusive production of \chi_{c}(0^{+}) meson and its measurement in the
\pi^{+}\pi^{-} channel | 4 pages, 6 figures, talk by P.Lebiedowicz at the 5th International
Hadron Structure'11 Conference, Tatransk\'a \v{S}trba, Slovakia, June 27th -
July 1st, 2011 | Nucl.Phys.Proc.Suppl. 219-220 (2011) 284-287 | 10.1016/j.nuclphysbps.2011.10.112 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We report on the results of a theoretical study of the central exclusive
production of scalar $\chi_{c}(0^{+})$ meson via $\chi_{c0} \to \pi^{+}\pi^{-}$
decay in high-energy hadron collisions at the RHIC, Tevatron and LHC. The
corresponding amplitude for exclusive double-diffractive $\chi_{c0}$ meson
production was o... | [
{
"created": "Thu, 11 Aug 2011 21:14:05 GMT",
"version": "v1"
}
] | 2015-03-19 | [
[
"Lebiedowicz",
"Piotr",
""
],
[
"Pasechnik",
"Roman",
""
],
[
"Szczurek",
"Antoni",
""
]
] | We report on the results of a theoretical study of the central exclusive production of scalar $\chi_{c}(0^{+})$ meson via $\chi_{c0} \to \pi^{+}\pi^{-}$ decay in high-energy hadron collisions at the RHIC, Tevatron and LHC. The corresponding amplitude for exclusive double-diffractive $\chi_{c0}$ meson production was obt... |
1201.4025 | S. Weinzierl | Stefan Weinzierl | Theoretical overview on top pair production and single top production | Presented at the 2011 Hadron Collider Physics symposium (HCP-2011),
Paris, France, November 14-18 2011, 6 pages, 5 figures | null | 10.1051/epjconf/20122805001 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | In this talk I will give an overview on theoretical aspects of top quark
physics. The focus lies on top pair production and single top production.
| [
{
"created": "Thu, 19 Jan 2012 11:17:07 GMT",
"version": "v1"
}
] | 2015-06-03 | [
[
"Weinzierl",
"Stefan",
""
]
] | In this talk I will give an overview on theoretical aspects of top quark physics. The focus lies on top pair production and single top production. |
hep-ph/0412421 | A. J. Buchmann | A.J. Buchmann | Electromagnetic N->Delta transition and neutron form factors | 4 pages, 2 figures | Phys.Rev.Lett. 93 (2004) 212301 | 10.1103/PhysRevLett.93.212301 | null | hep-ph nucl-th | null | The C2/M1 ratio of the electromagnetic N->Delta(1232) transition, which is
important for determining the geometric shape of the nucleon, is shown to be
related to the neutron elastic form factor ratio G_C^n/G_M^n. The proposed
relation holds with good accuracy for the entire range of momentum transfers
where data are... | [
{
"created": "Thu, 30 Dec 2004 17:19:21 GMT",
"version": "v1"
}
] | 2009-11-10 | [
[
"Buchmann",
"A. J.",
""
]
] | The C2/M1 ratio of the electromagnetic N->Delta(1232) transition, which is important for determining the geometric shape of the nucleon, is shown to be related to the neutron elastic form factor ratio G_C^n/G_M^n. The proposed relation holds with good accuracy for the entire range of momentum transfers where data are a... |
hep-ph/0502233 | Jean-Marc Laget | J.M. Laget | The Primakoff effect on a proton target | 4 pages; 5 Figures | Phys.Rev.C72:022202,2005 | 10.1103/PhysRevC.72.022202 | JLAB-TH-05-303 | hep-ph | null | Primakoff effect offers us with a way to determine the radiative decay width
of pseudo-scalar mesons when they are photo-produced in the electromagnetic
field of hadronic systems. Taking advantage of recent developments in the Regge
description of the production of mesons in the strong hadronic field, this
paper eval... | [
{
"created": "Fri, 25 Feb 2005 18:00:00 GMT",
"version": "v1"
}
] | 2014-11-18 | [
[
"Laget",
"J. M.",
""
]
] | Primakoff effect offers us with a way to determine the radiative decay width of pseudo-scalar mesons when they are photo-produced in the electromagnetic field of hadronic systems. Taking advantage of recent developments in the Regge description of the production of mesons in the strong hadronic field, this paper evalua... |
2203.02930 | Di Wang | Di Wang | From topological amplitude to rescattering dynamics in doubly charmed
baryon decays | 14 pages, 10 figures | Phys. Rev. D 105, 073002 (2022) | 10.1103/PhysRevD.105.073002 | null | hep-ph | http://creativecommons.org/licenses/by/4.0/ | The doubly charmed baryon $\Xi^{++}_{cc}$ was observed by LHCb cooperation in
2017. The branching fractions of two-body doubly charmed baryon decays were
predicted in the framework of rescattering mechanism, and some $SU(3)_F$
relations were investigated in the topological amplitudes. In this work, we
study the corre... | [
{
"created": "Sun, 6 Mar 2022 10:27:38 GMT",
"version": "v1"
}
] | 2022-04-12 | [
[
"Wang",
"Di",
""
]
] | The doubly charmed baryon $\Xi^{++}_{cc}$ was observed by LHCb cooperation in 2017. The branching fractions of two-body doubly charmed baryon decays were predicted in the framework of rescattering mechanism, and some $SU(3)_F$ relations were investigated in the topological amplitudes. In this work, we study the correla... |
hep-ph/9707379 | J. Gunion | J.F. Gunion (U.C. Davis) | Muon Colliders: The Machine and The Physics | 18 pages, full postscript file is available via anonymous ftp at
ftp://ucdhep.ucdavis.edu/gunion/bsmv.ps | AIP Conf.Proc. 415 (1997) 234-251 | 10.1063/1.54477 | UCD-97-17 | hep-ph hep-ex | null | A review of muon colliders is presented. Basic features of the accelerator
and detector are outlined, and the very exciting physics prospects are
reviewed.
| [
{
"created": "Thu, 17 Jul 1997 22:28:19 GMT",
"version": "v1"
},
{
"created": "Fri, 18 Jul 1997 02:16:38 GMT",
"version": "v2"
}
] | 2009-10-30 | [
[
"Gunion",
"J. F.",
"",
"U.C. Davis"
]
] | A review of muon colliders is presented. Basic features of the accelerator and detector are outlined, and the very exciting physics prospects are reviewed. |
2108.07310 | Ivan Martinez Soler | G. Fernandez-Moroni, R. Harnik, P. A. N. Machado, I. Martinez-Soler,
Y. F. Perez-Gonzalez, D. Rodrigues, and S. Rosauro-Alcaraz | The physics potential of a reactor neutrino experiment with
Skipper-CCDs: Searching for new physics with light mediators | 17 pages, 7 figures | null | 10.1007/JHEP02(2022)127 | FERMILAB-PUB-21-357-T, NUHEP-TH/21-08, IFT-UAM/CSIC-21-92 | hep-ph hep-ex | http://creativecommons.org/licenses/by/4.0/ | We explore the sensitivity to new physics of the recently proposed vIOLETA
experiment: a 10 kg Skipper Charged Coupled Device detector deployed 12 meters
away from a commercial nuclear reactor core. We investigate two broad classes
of models which benefit from the very low energy recoil threshold of these
detectors, ... | [
{
"created": "Mon, 16 Aug 2021 18:45:07 GMT",
"version": "v1"
}
] | 2022-03-09 | [
[
"Fernandez-Moroni",
"G.",
""
],
[
"Harnik",
"R.",
""
],
[
"Machado",
"P. A. N.",
""
],
[
"Martinez-Soler",
"I.",
""
],
[
"Perez-Gonzalez",
"Y. F.",
""
],
[
"Rodrigues",
"D.",
""
],
[
"Rosauro-Alcaraz",
"S.",
... | We explore the sensitivity to new physics of the recently proposed vIOLETA experiment: a 10 kg Skipper Charged Coupled Device detector deployed 12 meters away from a commercial nuclear reactor core. We investigate two broad classes of models which benefit from the very low energy recoil threshold of these detectors, na... |
0707.2523 | Magno Machado | V.P. Goncalves, M.V.T. Machado | Quarkonium production in coherent hadron-hadron interactions at the LHC | null | Phys.Rev.D77:014037,2008 | 10.1103/PhysRevD.77.014037 | null | hep-ph | null | The photoproduction of quarkonium in coherent hadron-hadron (pp/pA/AA$)
interactions for LHC energies is an important tool to investigate the QCD
dynamics at high energies. In this paper we estimate the integrated cross
section and rapidity distribution for J/Psi and Upsilon production using the
Color Glass Condensat... | [
{
"created": "Tue, 17 Jul 2007 13:46:19 GMT",
"version": "v1"
}
] | 2008-11-26 | [
[
"Goncalves",
"V. P.",
""
],
[
"Machado",
"M. V. T.",
""
]
] | The photoproduction of quarkonium in coherent hadron-hadron (pp/pA/AA$) interactions for LHC energies is an important tool to investigate the QCD dynamics at high energies. In this paper we estimate the integrated cross section and rapidity distribution for J/Psi and Upsilon production using the Color Glass Condensate ... |
2301.10994 | Joshua Hoffer | Joshua Hoffer, Christian S. Fischer | Four-quark states from functional methods | 5 pages, 2 figures; contribution to the proceedings of the FAIR next
generation scientists workshop (FAIRNESS), 7th edition, 23-27 May 2022,
Paralia, Greece | null | null | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The discovery of four-quark states attracted a lot of attention from the
theoretical as well as the experimental side. To study their properties from
QCD we use a functional framework which combines (truncated) Dyson-Schwinger
and Bethe-Salpeter equations in Landau gauge. This approach allows us to
extract qualitativ... | [
{
"created": "Thu, 26 Jan 2023 08:49:52 GMT",
"version": "v1"
}
] | 2023-01-27 | [
[
"Hoffer",
"Joshua",
""
],
[
"Fischer",
"Christian S.",
""
]
] | The discovery of four-quark states attracted a lot of attention from the theoretical as well as the experimental side. To study their properties from QCD we use a functional framework which combines (truncated) Dyson-Schwinger and Bethe-Salpeter equations in Landau gauge. This approach allows us to extract qualitative ... |
hep-ph/9907377 | Porod | A. Bartl, W. Majerotto, and W. Porod | Large Higgs Boson Exchange Contribution in Three-Body Neutralino Decays | 16 pages, 7 figures included as PS-files | Phys.Lett. B465 (1999) 187-192 | 10.1016/S0370-2693(99)01042-4 | UWThPh-1999-44, HEPHY-PUB 717/99 | hep-ph | null | We show that the Higgs boson exchange contribution can be large in three-body
decays of neutralinos even in the case of small tan(beta). This enlarges the
branching ratios for the decays neutralino_2 -> neutralino_1 b \bar{b} and
neutralino_2 -> neutralino_1 tau- tau+. This is the case in the region of the
parameter ... | [
{
"created": "Thu, 15 Jul 1999 15:14:34 GMT",
"version": "v1"
}
] | 2009-10-31 | [
[
"Bartl",
"A.",
""
],
[
"Majerotto",
"W.",
""
],
[
"Porod",
"W.",
""
]
] | We show that the Higgs boson exchange contribution can be large in three-body decays of neutralinos even in the case of small tan(beta). This enlarges the branching ratios for the decays neutralino_2 -> neutralino_1 b \bar{b} and neutralino_2 -> neutralino_1 tau- tau+. This is the case in the region of the parameter sp... |
1308.6651 | Yuta Hamada | Yuta Hamada, Hikaru Kawai, Kin-ya Oda | Minimal Higgs inflation | 25 pages, 9 figures; references added(v2); Version to appear in
PTEP(v3) | Prog. Theor. Exp. Phys. (2014) 023B02 | 10.1093/ptep/ptt116 | KUNS-2461, OU-HET/792 | hep-ph astro-ph.CO hep-ex hep-th | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We consider a possibility that the Higgs field in the Standard Model (SM)
serves as an inflaton when its value is around the Planck scale. We assume that
the SM is valid up to an ultraviolet cutoff scale \Lambda, which is slightly
below the Planck scale, and that the Higgs potential becomes almost flat above
\Lambda.... | [
{
"created": "Fri, 30 Aug 2013 05:32:32 GMT",
"version": "v1"
},
{
"created": "Tue, 10 Sep 2013 15:09:05 GMT",
"version": "v2"
},
{
"created": "Sat, 14 Dec 2013 17:34:05 GMT",
"version": "v3"
}
] | 2014-02-11 | [
[
"Hamada",
"Yuta",
""
],
[
"Kawai",
"Hikaru",
""
],
[
"Oda",
"Kin-ya",
""
]
] | We consider a possibility that the Higgs field in the Standard Model (SM) serves as an inflaton when its value is around the Planck scale. We assume that the SM is valid up to an ultraviolet cutoff scale \Lambda, which is slightly below the Planck scale, and that the Higgs potential becomes almost flat above \Lambda. C... |
1603.05070 | Peihong Gu | Pei-Hong Gu | Peccei-Quinn symmetry for Dirac seesaw and leptogenesis | 12 pages, 8 figures, numerical estimations and more references are
added to match the journal version | null | 10.1088/1475-7516/2016/07/004 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | We extend the DFSZ invisible axion model to simultaneously explain small
Dirac neutrino masses and cosmic matter-antimatter asymmetry. After the
Peccei-Quinn and electroweak symmetry breaking, the effective Yukawa couplings
of the Dirac neutrinos to the standard model Higgs scalar can be highly
suppressed by the rati... | [
{
"created": "Wed, 16 Mar 2016 12:54:05 GMT",
"version": "v1"
},
{
"created": "Tue, 6 Sep 2016 12:35:16 GMT",
"version": "v2"
}
] | 2016-09-07 | [
[
"Gu",
"Pei-Hong",
""
]
] | We extend the DFSZ invisible axion model to simultaneously explain small Dirac neutrino masses and cosmic matter-antimatter asymmetry. After the Peccei-Quinn and electroweak symmetry breaking, the effective Yukawa couplings of the Dirac neutrinos to the standard model Higgs scalar can be highly suppressed by the ratio ... |
0706.2810 | Magno Machado | V.P. Goncalves, M.V.T. Machado | Quarkonium production in coherent pp/AA collisions and small-x physics | 2 pages, 2 figures, 1 table. Contributed to Workshop on Heavy Ion
Collisions at the LHC: Last Call for Predictions, Geneva, Switzerland, 14 May
- 8 Jun 2007 | null | null | null | hep-ph | null | In this contribution we study the photoproduction of quarkonium in coherent
proton-proton and nucleus-nucleus interactions at the LHC. The integrated cross
sections and rapidity distributions are estimated using the Color Glass
Condensate (CGC) formalism, which takes into account the parton saturation
effects at high... | [
{
"created": "Tue, 19 Jun 2007 14:57:07 GMT",
"version": "v1"
}
] | 2007-06-20 | [
[
"Goncalves",
"V. P.",
""
],
[
"Machado",
"M. V. T.",
""
]
] | In this contribution we study the photoproduction of quarkonium in coherent proton-proton and nucleus-nucleus interactions at the LHC. The integrated cross sections and rapidity distributions are estimated using the Color Glass Condensate (CGC) formalism, which takes into account the parton saturation effects at high e... |
1907.11464 | Shin Kobayashi | Masahiro Ibe, Shin Kobayashi, Ryo Nagai, and Wakutaka Nakano | Oscillating Composite Asymmetric Dark Matter | 38 pages, 12 figures | null | 10.1007/JHEP01(2020)027 | IPMU 19-0103 | hep-ph astro-ph.HE | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The asymmetric dark matter (ADM) scenario can solve the coincidence problem
between the baryon and the dark matter (DM) abundance when the DM mass is of
${\cal O}(1)\,$GeV. In the ADM scenarios, composite dark matter is particularly
motivated, as it can naturally provide the DM mass in the ${\cal O}(1)\,$GeV
range an... | [
{
"created": "Fri, 26 Jul 2019 09:57:57 GMT",
"version": "v1"
},
{
"created": "Wed, 5 Feb 2020 07:15:03 GMT",
"version": "v2"
}
] | 2020-02-06 | [
[
"Ibe",
"Masahiro",
""
],
[
"Kobayashi",
"Shin",
""
],
[
"Nagai",
"Ryo",
""
],
[
"Nakano",
"Wakutaka",
""
]
] | The asymmetric dark matter (ADM) scenario can solve the coincidence problem between the baryon and the dark matter (DM) abundance when the DM mass is of ${\cal O}(1)\,$GeV. In the ADM scenarios, composite dark matter is particularly motivated, as it can naturally provide the DM mass in the ${\cal O}(1)\,$GeV range and ... |
1810.06597 | Pouya Asadi | Pouya Asadi, Matthew R. Buckley, David Shih | Asymmetry Observables and the Origin of $R_{D^{(*)}}$ Anomalies | 28 pages+appendices, 10 figures. v2: typos fixed, references added,
some constraints and the list of viable models updated | Phys. Rev. D 99, 035015 (2019) | 10.1103/PhysRevD.99.035015 | null | hep-ph | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | The $R_{D^{(*)}}$ anomalies are among the longest-standing and most
statistically significant hints of physics beyond the Standard Model. Many
models have been proposed to explain these anomalies, including the interesting
possibility that right-handed neutrinos could be involved in the $B$ decays. In
this paper, we ... | [
{
"created": "Mon, 15 Oct 2018 18:21:04 GMT",
"version": "v1"
},
{
"created": "Tue, 8 Jan 2019 14:54:56 GMT",
"version": "v2"
}
] | 2019-02-20 | [
[
"Asadi",
"Pouya",
""
],
[
"Buckley",
"Matthew R.",
""
],
[
"Shih",
"David",
""
]
] | The $R_{D^{(*)}}$ anomalies are among the longest-standing and most statistically significant hints of physics beyond the Standard Model. Many models have been proposed to explain these anomalies, including the interesting possibility that right-handed neutrinos could be involved in the $B$ decays. In this paper, we in... |
hep-ph/9402287 | null | Christian F. W\"ohler and Edward Shuryak | Two-loop Correction to the Instanton Density for the Double Well
Potential | null | Phys.Lett. B333 (1994) 467-470 | 10.1016/0370-2693(94)90169-4 | null | hep-ph hep-th | null | Feynman diagrams in the instanton background are used for the calculation of
the tunneling amplitude, up to the two-loops order. Some mistakes made in the
previous works are corrected. The same method is applied to the next-order
corrections to the ground state wave function.
| [
{
"created": "Tue, 15 Feb 1994 15:38:11 GMT",
"version": "v1"
}
] | 2016-08-14 | [
[
"Wöhler",
"Christian F.",
""
],
[
"Shuryak",
"Edward",
""
]
] | Feynman diagrams in the instanton background are used for the calculation of the tunneling amplitude, up to the two-loops order. Some mistakes made in the previous works are corrected. The same method is applied to the next-order corrections to the ground state wave function. |
1407.1019 | Damir Becirevic | Damir Becirevic, Alain Le Yaouanc, Arantza Oyanguren, Patrick Roudeau
and Francesco Sanfilippo | Insight into $D/B\to \pi \ell \nu_\ell$ decay using the pole models | 33 pages, 5 figs [all available experimental data included!] | null | null | LPT 14-58 | hep-ph hep-ex hep-lat | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ | After improving the knowledge about residua of the semileptonic form factor
at its first two poles we show that $f_+^{D\pi}(q^2)$ is not saturated when
compared with the experimental data. To fill the difference we approximate the
rest of discontinuity by an effective pole and show that the data can be
described very... | [
{
"created": "Thu, 3 Jul 2014 19:11:22 GMT",
"version": "v1"
},
{
"created": "Fri, 17 Oct 2014 11:17:46 GMT",
"version": "v2"
}
] | 2014-10-20 | [
[
"Becirevic",
"Damir",
""
],
[
"Yaouanc",
"Alain Le",
""
],
[
"Oyanguren",
"Arantza",
""
],
[
"Roudeau",
"Patrick",
""
],
[
"Sanfilippo",
"Francesco",
""
]
] | After improving the knowledge about residua of the semileptonic form factor at its first two poles we show that $f_+^{D\pi}(q^2)$ is not saturated when compared with the experimental data. To fill the difference we approximate the rest of discontinuity by an effective pole and show that the data can be described very w... |
hep-ph/9512305 | Takayuki Shigetani Rcnp | Takayuki Shigetani (Tokyo Metropolitan University), Katsuhiko Suzuki
(Technische Universit\"at M\"unchen) and Hiroshi Toki (RCNP) | Off-shell pion structure function and flavor asymmetry in the nucleon
sea | 19 pages with 6 figures as uuencoded postscript files, (plain LaTeX)
(6 figures - available on request from shige@miho.rcnp.osaka-u.ac.jp) | null | null | null | hep-ph | null | We study off-shell effects of the pion cloud on the sea quark distribution in
the nucleon. The structure function of the off-mass-shell pion is obtained
within the Nambu and Jona-Lasinio model, where the shape of the distribution
function depends on the pion momentum. By using the momentum dependent pion
structure fu... | [
{
"created": "Thu, 14 Dec 1995 07:45:04 GMT",
"version": "v1"
}
] | 2016-08-15 | [
[
"Shigetani",
"Takayuki",
"",
"Tokyo Metropolitan University"
],
[
"Suzuki",
"Katsuhiko",
"",
"Technische Universität München"
],
[
"Toki",
"Hiroshi",
"",
"RCNP"
]
] | We study off-shell effects of the pion cloud on the sea quark distribution in the nucleon. The structure function of the off-mass-shell pion is obtained within the Nambu and Jona-Lasinio model, where the shape of the distribution function depends on the pion momentum. By using the momentum dependent pion structure func... |
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