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hep-ph/0603231
C\'edric Lorc\'e
C\'edric Lorc\'e
Improvement of the Theta+ width estimation method on the Light Cone
28 pages, 15 figures; typo corrected and few comments added
Phys.Rev. D74 (2006) 054019
10.1103/PhysRevD.74.054019
null
hep-ph
null
Recently, Diakonov and Petrov have suggested a formalism in the Relativistic Mean Field Approximation allowing one to derive the 3-, 5-, 7-,... quark wavefunctions for the octet, decuplet and antidecuplet. They have used this formalism and many strong approximations in order to estimate the exotic Theta+ width. The l...
[ { "created": "Tue, 28 Mar 2006 18:24:11 GMT", "version": "v1" }, { "created": "Thu, 13 Apr 2006 18:14:51 GMT", "version": "v2" }, { "created": "Fri, 14 Apr 2006 09:59:42 GMT", "version": "v3" }, { "created": "Thu, 29 Jun 2006 12:33:02 GMT", "version": "v4" } ]
2009-11-11
[ [ "Lorcé", "Cédric", "" ] ]
Recently, Diakonov and Petrov have suggested a formalism in the Relativistic Mean Field Approximation allowing one to derive the 3-, 5-, 7-,... quark wavefunctions for the octet, decuplet and antidecuplet. They have used this formalism and many strong approximations in order to estimate the exotic Theta+ width. The lat...
0805.1474
Andrey Grozin
A. G. Grozin
Three-loop results in HQET
Talk at Loops and Legs 2008
Nucl.Phys.Proc.Suppl.183:302-307,2008
10.1016/j.nuclphysbps.2008.09.121
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recent results and methods of three-loop calculations in HQET are reviewed.
[ { "created": "Sat, 10 May 2008 13:54:47 GMT", "version": "v1" } ]
2008-11-26
[ [ "Grozin", "A. G.", "" ] ]
Recent results and methods of three-loop calculations in HQET are reviewed.
hep-ph/0101240
Roman Nikolaevich Lee
R.N.Lee, A.I.Milstein, M.Schumacher
Relativistic corrections to the electromagnetic polarizabilities of compound systems
19 pages, LaTeX
Phys.Rev.Lett.87:051601,2001
10.1103/PhysRevLett.87.051601
Budker INP 2001-4
hep-ph nucl-th
null
The low-energy amplitude of Compton scattering on the bound state of two charged particles of arbitrary masses, charges and spins is calculated. A case in which the bound state exists due to electromagnetic interaction (QED) is considered. The term, proportional to $\omega^2$, is obtained taking into account the firs...
[ { "created": "Mon, 22 Jan 2001 11:10:01 GMT", "version": "v1" } ]
2011-01-25
[ [ "Lee", "R. N.", "" ], [ "Milstein", "A. I.", "" ], [ "Schumacher", "M.", "" ] ]
The low-energy amplitude of Compton scattering on the bound state of two charged particles of arbitrary masses, charges and spins is calculated. A case in which the bound state exists due to electromagnetic interaction (QED) is considered. The term, proportional to $\omega^2$, is obtained taking into account the first ...
0903.2729
Vladimir Zoller
N.N. Nikolaev and V.R.Zoller
Beauty, charm and $F_L$ at HERA: new data vs. early predictions
16 pages, 4 figures. The contribution to the volume in honor of Lev Okun's 80 birthday
Phys.Atom.Nucl.73:672-679,2010
10.1134/S1063778810040137
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
One of the well known effects of the asymptotic freedom is splitting of the leading-$\log$ BFKL pomeron into a series of isolated poles in complex angular momentum plane. Following our earlier works we explore the phenomenological consequences of the emerging BFKL-Regge factorized expansion for the small-$x$ charm ($...
[ { "created": "Mon, 16 Mar 2009 12:08:08 GMT", "version": "v1" } ]
2010-04-30
[ [ "Nikolaev", "N. N.", "" ], [ "Zoller", "V. R.", "" ] ]
One of the well known effects of the asymptotic freedom is splitting of the leading-$\log$ BFKL pomeron into a series of isolated poles in complex angular momentum plane. Following our earlier works we explore the phenomenological consequences of the emerging BFKL-Regge factorized expansion for the small-$x$ charm ($F_...
1709.03326
Romain Contant
Romain Contant, Markus Q. Huber
The quark propagators of QCD and QCD-like theories
6 pages, 3 figures, submitted to proceedings of Excited QCD 2017, 7-13 May 2017, Sintra, Portugal
null
null
null
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the phase structures of theories which differ from QCD only in the gauge group and can be simulated on the lattice at non-vanishing chemical potential $\mu$. These theories can thus serve as testing ground for functional methods at non-vanishing density. We determine the chiral and confinement/deconfin...
[ { "created": "Mon, 11 Sep 2017 10:55:16 GMT", "version": "v1" } ]
2017-09-12
[ [ "Contant", "Romain", "" ], [ "Huber", "Markus Q.", "" ] ]
We investigate the phase structures of theories which differ from QCD only in the gauge group and can be simulated on the lattice at non-vanishing chemical potential $\mu$. These theories can thus serve as testing ground for functional methods at non-vanishing density. We determine the chiral and confinement/deconfinem...
hep-ph/0610088
Asimina Arvanitaki
Asimina Arvanitaki
Discovering Chiral Higgsinos at the LHC
10 pages, 5 figures v2: minor corrections, 11 pages, 5 figures
Phys.Rev.D81:075008,2010
10.1103/PhysRevD.81.075008
null
hep-ph
null
The concept of chirality is extended to the Minimal Supersymmetric Standard Model (MSSM) and the mu term is forbidden by a gauged U(1)' symmetry. R-parity automatically emerges after symmetry breaking, suppressing proton decay and protecting the LSP. Exotics charged under the SM pose a challenge to traditional SU(5) ...
[ { "created": "Sun, 8 Oct 2006 19:16:39 GMT", "version": "v1" }, { "created": "Thu, 12 Oct 2006 16:15:50 GMT", "version": "v2" } ]
2010-04-21
[ [ "Arvanitaki", "Asimina", "" ] ]
The concept of chirality is extended to the Minimal Supersymmetric Standard Model (MSSM) and the mu term is forbidden by a gauged U(1)' symmetry. R-parity automatically emerges after symmetry breaking, suppressing proton decay and protecting the LSP. Exotics charged under the SM pose a challenge to traditional SU(5) un...
hep-ph/9604380
Uma Mahanta
Uma Mahanta
Dipole moments of tau as a sensitive probe for beyond standard model physics
Tex file
Phys.Rev. D54 (1996) 3377-3381
10.1103/PhysRevD.54.3377
MRI-PHY/16-96
hep-ph
null
CP violating dipole moments of leptons vanish at least to three loop order and are estimated to be $({m_l\over Mev})\times 1.6\times 10^{- 40}$ e-cm in the standard model (SM), where $m_l$ is the mass of the lepton. However they can receive potentially large contributions in some beyond SM scenarios and this makes th...
[ { "created": "Mon, 22 Apr 1996 10:21:27 GMT", "version": "v1" } ]
2016-09-01
[ [ "Mahanta", "Uma", "" ] ]
CP violating dipole moments of leptons vanish at least to three loop order and are estimated to be $({m_l\over Mev})\times 1.6\times 10^{- 40}$ e-cm in the standard model (SM), where $m_l$ is the mass of the lepton. However they can receive potentially large contributions in some beyond SM scenarios and this makes them...
hep-ph/0304248
Yili Wang
Yili Wang and David Atwood
Rate difference between b $\to$ s mu^+ mu^- and b $\to$ s e^+e^- in SUSY with large tan$\beta$
9 pages and 4 figures
Phys.Rev.D68:094016,2003
10.1103/PhysRevD.68.094016
null
hep-ph
null
We study the inclusive semileptonic rare decay $b \to s l^+ l^-$ in minimal supergravity model (mSUGRA). If tan$\beta$ is large, down-type quark mass matrices and their Yukawa couplings cannot be diagonalized at the same basis. This induces the flavor violating neutral Higgs boson couplings. These couplings contribut...
[ { "created": "Fri, 25 Apr 2003 21:15:12 GMT", "version": "v1" }, { "created": "Wed, 18 Jun 2003 15:20:59 GMT", "version": "v2" }, { "created": "Fri, 28 Nov 2003 20:57:56 GMT", "version": "v3" } ]
2008-11-26
[ [ "Wang", "Yili", "" ], [ "Atwood", "David", "" ] ]
We study the inclusive semileptonic rare decay $b \to s l^+ l^-$ in minimal supergravity model (mSUGRA). If tan$\beta$ is large, down-type quark mass matrices and their Yukawa couplings cannot be diagonalized at the same basis. This induces the flavor violating neutral Higgs boson couplings. These couplings contribute ...
hep-ph/9709457
Changhao Jin
Changhao Jin
Calculation of the semileptonic decay width of the $\Lambda_b$ baryon
11 pages, REVTeX
Phys.Rev. D56 (1997) 7267-7272
10.1103/PhysRevD.56.7267
TTP97-31
hep-ph
null
We extend the approach based on the light-cone expansion and the heavy quark effective theory to the inclusive semileptonic decay of an unpolarized $b$-flavored hadron. It is applied to calculate the semileptonic decay width of the $\Lambda_b$ baryon and its ratio to that of the B meson. We obtain $\Gamma_{SL}(\Lambd...
[ { "created": "Thu, 25 Sep 1997 13:43:21 GMT", "version": "v1" } ]
2009-10-30
[ [ "Jin", "Changhao", "" ] ]
We extend the approach based on the light-cone expansion and the heavy quark effective theory to the inclusive semileptonic decay of an unpolarized $b$-flavored hadron. It is applied to calculate the semileptonic decay width of the $\Lambda_b$ baryon and its ratio to that of the B meson. We obtain $\Gamma_{SL}(\Lambda_...
1402.5501
Zhenjun Xiao
Shan Cheng, Ying-Ying Fan, Xin Yu, Cai-Dian L\"u and Zhen-Jun Xiao
The NLO twist-3 contributions to $B \to \pi$ form factors in $k_{T}$ factorization
25 pages, 12 figures, 5 Tables. More discussions, several new references are added. The version to be published in Phys.Rev.D
Phys. Rev. D 89, 094004 (2014)
10.1103/PhysRevD.89.094004
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, we calculate the next-to-leading-order (NLO) twist-3 contribution to the form factors of $B \to \pi$ transitions by employing the $k_{T}$ factorization theorem. All the infrared divergences regulated by the logarithms $\ln(k_{iT}^{2})$ cancel between those from the quark diagrams and from the effective...
[ { "created": "Sat, 22 Feb 2014 11:41:46 GMT", "version": "v1" }, { "created": "Thu, 27 Feb 2014 07:13:28 GMT", "version": "v2" }, { "created": "Wed, 16 Apr 2014 23:29:19 GMT", "version": "v3" } ]
2014-05-14
[ [ "Cheng", "Shan", "" ], [ "Fan", "Ying-Ying", "" ], [ "Yu", "Xin", "" ], [ "Lü", "Cai-Dian", "" ], [ "Xiao", "Zhen-Jun", "" ] ]
In this paper, we calculate the next-to-leading-order (NLO) twist-3 contribution to the form factors of $B \to \pi$ transitions by employing the $k_{T}$ factorization theorem. All the infrared divergences regulated by the logarithms $\ln(k_{iT}^{2})$ cancel between those from the quark diagrams and from the effective d...
hep-ph/0407371
Jean-Michel Levy
Jean-Michel Levy
Cross-section and polarization of neutrino-produced $\tau$'s made simple
10 pages, no figures
J.Phys.G36:055002,2009
10.1088/0954-3899/36/5/055002
LPNHE 2004-09
hep-ph
null
Practical formulae are derived for the cross-section and polarization of the $\tau$ lepton produced in deep-inelastic neutrino-nucleon scattering in the frame of the simple quark-parton model.
[ { "created": "Fri, 30 Jul 2004 19:59:24 GMT", "version": "v1" }, { "created": "Sun, 1 Aug 2004 11:33:26 GMT", "version": "v2" } ]
2009-04-03
[ [ "Levy", "Jean-Michel", "" ] ]
Practical formulae are derived for the cross-section and polarization of the $\tau$ lepton produced in deep-inelastic neutrino-nucleon scattering in the frame of the simple quark-parton model.
hep-ph/0204230
Timo Arvid Lahde
T.A. Lahde, D.O. Riska (Helsinki Institute of Physics and Department of Physics, University of Helsinki, Finland)
The Coupling of eta Mesons to Quarks and Baryons from D_s^* -> D_s pi^0 Decay
17 pages, uses Feynmf. Submitted to Nuclear Physics A, accepted version
Nucl.Phys. A710 (2002) 99-116
10.1016/S0375-9474(02)01125-9
null
hep-ph
null
The known ratio of the branching fractions for D_s^* --> D_s pi^0 and D_s^* --> D_s gamma may be used to extract the coupling of eta mesons to strange quarks once the value of the pi^0-eta mixing angle is known. This requires that realistic models for the spectra as well as the magnetic dipole (M1) decays of the heav...
[ { "created": "Fri, 19 Apr 2002 10:59:12 GMT", "version": "v1" }, { "created": "Wed, 7 Aug 2002 13:28:20 GMT", "version": "v2" } ]
2009-11-07
[ [ "Lahde", "T. A.", "", "Helsinki Institute of Physics and Department\n of Physics, University of Helsinki, Finland" ], [ "Riska", "D. O.", "", "Helsinki Institute of Physics and Department\n of Physics, University of Helsinki, Finland" ] ]
The known ratio of the branching fractions for D_s^* --> D_s pi^0 and D_s^* --> D_s gamma may be used to extract the coupling of eta mesons to strange quarks once the value of the pi^0-eta mixing angle is known. This requires that realistic models for the spectra as well as the magnetic dipole (M1) decays of the heavy-...
1503.07996
Philipp Gubler
Philipp Gubler, Kie Sang Jeong, Su Houng Lee
New determination of $\mathcal{S} \mathcal{T} \langle N| \overline{q} D_{\mu} D_{\nu} q |N \rangle$ based on recent experimental constraints
22 pages, 4 figures, 4 tables; published version
Phys. Rev. D 92, 014010 (2015)
10.1103/PhysRevD.92.014010
null
hep-ph hep-ex hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The symmetric and traceless part of the matrix element $\mathcal{S} \mathcal{T} \langle N| \overline{q} D_{\mu} D_{\nu} q |N \rangle$ can be determined from the second moment of the twist-3 parton distribution function $e(x)$. Recently, novel experimental data on $e(x)$ have become available, which enables us to eval...
[ { "created": "Fri, 27 Mar 2015 09:17:07 GMT", "version": "v1" }, { "created": "Thu, 9 Jul 2015 14:45:41 GMT", "version": "v2" } ]
2015-07-10
[ [ "Gubler", "Philipp", "" ], [ "Jeong", "Kie Sang", "" ], [ "Lee", "Su Houng", "" ] ]
The symmetric and traceless part of the matrix element $\mathcal{S} \mathcal{T} \langle N| \overline{q} D_{\mu} D_{\nu} q |N \rangle$ can be determined from the second moment of the twist-3 parton distribution function $e(x)$. Recently, novel experimental data on $e(x)$ have become available, which enables us to evalua...
hep-ph/9904302
Uma Sankar
Mohan Narayan and S. Uma Sankar (I.I.T., Bombay, India)
Probing the matter term at long baseline experiments
9 pages including three figures
Phys.Rev. D61 (2000) 013003
10.1103/PhysRevD.61.013003
null
hep-ph
null
We consider (\nu_\mu --> \nu_e) oscillations in long baseline experiments within a three flavor framework. A non-zero measurement of this oscillation probability implies that the (13) mixing angle `phi' is non-zero. We consider the effect of neutrino propagation through the matter of earth's crust and show that, give...
[ { "created": "Mon, 12 Apr 1999 14:37:26 GMT", "version": "v1" } ]
2009-10-31
[ [ "Narayan", "Mohan", "", "I.I.T., Bombay, India" ], [ "Sankar", "S. Uma", "", "I.I.T., Bombay, India" ] ]
We consider (\nu_\mu --> \nu_e) oscillations in long baseline experiments within a three flavor framework. A non-zero measurement of this oscillation probability implies that the (13) mixing angle `phi' is non-zero. We consider the effect of neutrino propagation through the matter of earth's crust and show that, given ...
2107.01552
Sk Noor Alam
Sk Noor Alam, Victor Roy, Shakeel Ahmad and Subhasis Chattopadhyay
Electro-magnetic field fluctuation and its correlation with the participant plane in Au+Au and isobaric collisions at $\sqrt{s_{NN}}=200$ GeV
null
null
10.1103/PhysRevD.104.114031
null
hep-ph nucl-th
http://creativecommons.org/licenses/by/4.0/
Intense transient electric ({\bf E}) and magnetic ({\bf B}) fields are produced in the high energy heavy-ion collisions. The electromagnetic fields produced in such high-energy heavy-ion collisions are proposed to give rise to a multitude of exciting phenomenon including the Chiral Magnetic Effect. We use a Monte Car...
[ { "created": "Sun, 4 Jul 2021 06:00:14 GMT", "version": "v1" } ]
2021-12-28
[ [ "Alam", "Sk Noor", "" ], [ "Roy", "Victor", "" ], [ "Ahmad", "Shakeel", "" ], [ "Chattopadhyay", "Subhasis", "" ] ]
Intense transient electric ({\bf E}) and magnetic ({\bf B}) fields are produced in the high energy heavy-ion collisions. The electromagnetic fields produced in such high-energy heavy-ion collisions are proposed to give rise to a multitude of exciting phenomenon including the Chiral Magnetic Effect. We use a Monte Carlo...
0807.4442
C. J. A. P. Martins
P.P. Avelino, C.J.A.P. Martins, J. Menezes, R. Menezes, J.C.R.E. Oliveira
Dynamics of domain wall networks with junctions
Submitted to Phys. Rev. D
Phys.Rev.D78:103508,2008
10.1103/PhysRevD.78.103508
null
hep-ph astro-ph gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We use a combination of analytic tools and an extensive set of the largest and most accurate three-dimensional field theory numerical simulations to study the dynamics of domain wall networks with junctions. We build upon our previous work and consider a class of models which, in the limit of large number $N$ of coup...
[ { "created": "Mon, 28 Jul 2008 13:13:11 GMT", "version": "v1" } ]
2008-11-26
[ [ "Avelino", "P. P.", "" ], [ "Martins", "C. J. A. P.", "" ], [ "Menezes", "J.", "" ], [ "Menezes", "R.", "" ], [ "Oliveira", "J. C. R. E.", "" ] ]
We use a combination of analytic tools and an extensive set of the largest and most accurate three-dimensional field theory numerical simulations to study the dynamics of domain wall networks with junctions. We build upon our previous work and consider a class of models which, in the limit of large number $N$ of couple...
hep-ph/9609380
Adam Falk
Adam F. Falk
The Many Uses of Excited Heavy Hadrons
30 pages, LaTeX with sprocl.sty, to appear in the Proceedings of the Twentieth Johns Hopkins Workshop on Current Problems in Particle Theory, Heidelberg, Germany, June 27-29, 1996
null
null
JHU-TIPAC-96014
hep-ph
null
I discuss a variety of issues in the physics of excited bottom and charmed hadrons. Recent developments in spectroscopy, strong decays, and production in fragmentation and weak decays are reviewed.
[ { "created": "Tue, 17 Sep 1996 13:05:55 GMT", "version": "v1" } ]
2007-05-23
[ [ "Falk", "Adam F.", "" ] ]
I discuss a variety of issues in the physics of excited bottom and charmed hadrons. Recent developments in spectroscopy, strong decays, and production in fragmentation and weak decays are reviewed.
1706.08524
Michael Andreas Schmidt
Yi Cai, Juan Herrero-Garc\'ia, Michael A. Schmidt, Avelino Vicente and Raymond R. Volkas
From the trees to the forest: a review of radiative neutrino mass models
90 pages, 23 figures and 11 tables. Minor changes, references and one figure added, matches published version in Frontiers in Physics
Front. in Phys. 5 (2017) 63
10.3389/fphy.2017.00063
ADP-17-29-T1035
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A plausible explanation for the lightness of neutrino masses is that neutrinos are massless at tree level, with their mass (typically Majorana) being generated radiatively at one or more loops. The new couplings, together with the suppression coming from the loop factors, imply that the new degrees of freedom cannot ...
[ { "created": "Mon, 26 Jun 2017 18:00:01 GMT", "version": "v1" }, { "created": "Wed, 19 Jul 2017 16:41:03 GMT", "version": "v2" }, { "created": "Sat, 25 Nov 2017 05:56:16 GMT", "version": "v3" } ]
2017-12-18
[ [ "Cai", "Yi", "" ], [ "Herrero-García", "Juan", "" ], [ "Schmidt", "Michael A.", "" ], [ "Vicente", "Avelino", "" ], [ "Volkas", "Raymond R.", "" ] ]
A plausible explanation for the lightness of neutrino masses is that neutrinos are massless at tree level, with their mass (typically Majorana) being generated radiatively at one or more loops. The new couplings, together with the suppression coming from the loop factors, imply that the new degrees of freedom cannot be...
hep-ph/0102036
Steven D. Bass
Steven D. Bass
Spin structure in non-forward partons
15 pages
Phys.Rev. D65 (2002) 074025
10.1103/PhysRevD.65.074025
TUM/T39-01-01
hep-ph
null
Renormalisation induces anomalous contributions in light-cone correlation functions. We discuss the role of the axial anomaly and gluon topology in non-forward parton distributions noting that non-forward matrix elements of the gluonic Chern-Simons current K_{\mu} are not gauge-invariant even in perturbation theory. ...
[ { "created": "Sun, 4 Feb 2001 16:50:26 GMT", "version": "v1" } ]
2009-11-07
[ [ "Bass", "Steven D.", "" ] ]
Renormalisation induces anomalous contributions in light-cone correlation functions. We discuss the role of the axial anomaly and gluon topology in non-forward parton distributions noting that non-forward matrix elements of the gluonic Chern-Simons current K_{\mu} are not gauge-invariant even in perturbation theory. Th...
1705.01837
Kevork Abazajian
Kevork N. Abazajian (UC Irvine)
Sterile neutrinos in cosmology
Accepted version of an invited review for Physics Reports. 33 pages, 7 figures, approximately 16,000 words; v3: expanded discussion of low reheating temperature universe models with a new figure, large scale structure effects, scalar decay models
Physics Reports, Volumes 711-712, 10 November 2017, Pages 1-28
10.1016/j.physrep.2017.10.003
UCI-TR-2017-03
hep-ph astro-ph.CO astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Sterile neutrinos are natural extensions to the standard model of particle physics in neutrino mass generation mechanisms. If they are relatively light, less than approximately 10 keV, they can alter cosmology significantly, from the early Universe to the matter and radiation energy density today. Here, we review the...
[ { "created": "Thu, 4 May 2017 13:48:23 GMT", "version": "v1" }, { "created": "Wed, 10 May 2017 16:50:36 GMT", "version": "v2" }, { "created": "Wed, 25 Oct 2017 17:38:59 GMT", "version": "v3" } ]
2018-12-19
[ [ "Abazajian", "Kevork N.", "", "UC Irvine" ] ]
Sterile neutrinos are natural extensions to the standard model of particle physics in neutrino mass generation mechanisms. If they are relatively light, less than approximately 10 keV, they can alter cosmology significantly, from the early Universe to the matter and radiation energy density today. Here, we review the c...
2210.02456
Ameen Ismail
Csaba Csaki, Ameen Ismail, Maximilian Ruhdorfer, Joseph Tooby-Smith
Higgs Squared
27 + 9 pages, 4 figures
null
10.1007/JHEP04(2023)082
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a novel construction for a Higgs-VEV sensitive operator, which can be used as a trigger operator in cosmic selection models for the electroweak hierarchy problem. Our operator does not contain any degrees of freedom charged under the SM gauge symmetries, leading to reduced tuning in the resulting models. O...
[ { "created": "Wed, 5 Oct 2022 18:00:00 GMT", "version": "v1" } ]
2023-05-10
[ [ "Csaki", "Csaba", "" ], [ "Ismail", "Ameen", "" ], [ "Ruhdorfer", "Maximilian", "" ], [ "Tooby-Smith", "Joseph", "" ] ]
We present a novel construction for a Higgs-VEV sensitive operator, which can be used as a trigger operator in cosmic selection models for the electroweak hierarchy problem. Our operator does not contain any degrees of freedom charged under the SM gauge symmetries, leading to reduced tuning in the resulting models. Our...
hep-ph/0309327
A. A. Arkhipov
A.A. Arkhipov
Hadronic Spectra and Kaluza-Klein Picture of the World
28 pages, 14 tables, Extended version of the talk presented at Xth International Conference on Hadron Spectroscopy HADRON '03, August 31 -- September 6, 2003, Aschaffenburg, Germany; few clarifying comments added; discussion of experiment and conclusion extended, available at http://dbserv.ihep.su/~pubs/prep200...
null
10.1063/1.1799779
IHEP 2003-37
hep-ph hep-ex nucl-ex
null
A manifestation of Kaluza-Klein picture in hadron spectra is discussed. It is argued that the experimentally observed structures in hadron spectra confirm the Kaluza-Klein picture of the world.
[ { "created": "Mon, 29 Sep 2003 18:18:57 GMT", "version": "v1" }, { "created": "Tue, 30 Sep 2003 16:04:17 GMT", "version": "v2" }, { "created": "Tue, 21 Oct 2003 16:48:03 GMT", "version": "v3" }, { "created": "Wed, 22 Oct 2003 15:58:01 GMT", "version": "v4" }, { "c...
2009-11-10
[ [ "Arkhipov", "A. A.", "" ] ]
A manifestation of Kaluza-Klein picture in hadron spectra is discussed. It is argued that the experimentally observed structures in hadron spectra confirm the Kaluza-Klein picture of the world.
hep-ph/0403251
Kai-Peer Oliver Diener
Kai-Peer O. Diener
Electron to Muon Conversion in Low-Energy Electron-Nucleus Scattering
9 pages, 1 figure
Nucl.Phys. B697 (2004) 387-396
10.1016/j.nuclphysb.2004.07.034
PSI-PR-04-05
hep-ph
null
We present an estimate of the electron to muon conversion cross section in fixed-target elastic electron scattering. The matrix element $<\mu | j_\mathrm{em}^\mu(0) | e>$ is calculated analytically in two scenarios introducing suitable approximations. We consider on the one hand side the case of three light Dirac neu...
[ { "created": "Wed, 24 Mar 2004 09:15:54 GMT", "version": "v1" } ]
2009-11-10
[ [ "Diener", "Kai-Peer O.", "" ] ]
We present an estimate of the electron to muon conversion cross section in fixed-target elastic electron scattering. The matrix element $<\mu | j_\mathrm{em}^\mu(0) | e>$ is calculated analytically in two scenarios introducing suitable approximations. We consider on the one hand side the case of three light Dirac neutr...
2307.15117
Marco Fedele
Marco Fedele, Felix Wuest and Ulrich Nierste
Renormalisation group analysis of scalar Leptoquark couplings addressing flavour anomalies: emergence of lepton-flavour universality
30 pages, 4 figures. References added, matching journal version
null
null
TTP23-027, P3H-23-048
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Leptoquarks with masses between 2 TeV and 50 TeV are commonly invoked to explain deviations between data and Standard-Model (SM) predictions of several observables in the decays $b\to c\tau \bar\nu$ and $b\to s \ell^+\ell^-$ with $\ell=e,\mu$. While Leptoquarks appear in theories unifying quarks and leptons, the corr...
[ { "created": "Thu, 27 Jul 2023 18:00:02 GMT", "version": "v1" }, { "created": "Fri, 24 Nov 2023 17:55:14 GMT", "version": "v2" } ]
2023-11-27
[ [ "Fedele", "Marco", "" ], [ "Wuest", "Felix", "" ], [ "Nierste", "Ulrich", "" ] ]
Leptoquarks with masses between 2 TeV and 50 TeV are commonly invoked to explain deviations between data and Standard-Model (SM) predictions of several observables in the decays $b\to c\tau \bar\nu$ and $b\to s \ell^+\ell^-$ with $\ell=e,\mu$. While Leptoquarks appear in theories unifying quarks and leptons, the corres...
0906.0538
Maxim V. Polyakov
M.V. Polyakov
On the Pion Distribution Amplitude Shape
Refernces and more discussion are added. Version published in JETP Letters, v 90 p. 250 (2009)
JETP Lett.90:228-231,2009
10.1134/S0021364009160024
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We argue that the recent BaBar data on $\gamma \to \pi$ e.m. transition form factor at large photon virtuality supports the idea that pion distribution amplitude (DA) is close to unity with $\phi_\pi^\prime(0)/6\gg 1$ at a normalization point of $\mu=0.6\div 0.8$ GeV. Such pion DA can be obtained in the effective chi...
[ { "created": "Tue, 2 Jun 2009 17:15:52 GMT", "version": "v1" }, { "created": "Wed, 28 Oct 2009 09:00:53 GMT", "version": "v2" } ]
2009-11-10
[ [ "Polyakov", "M. V.", "" ] ]
We argue that the recent BaBar data on $\gamma \to \pi$ e.m. transition form factor at large photon virtuality supports the idea that pion distribution amplitude (DA) is close to unity with $\phi_\pi^\prime(0)/6\gg 1$ at a normalization point of $\mu=0.6\div 0.8$ GeV. Such pion DA can be obtained in the effective chira...
hep-ph/0602061
Fuminobu Takahashi
Motoi Endo, Koichi Hamaguchi, Fuminobu Takahashi
Moduli-Induced Gravitino Problem
5 pages, 1 figure. v2: minor changes, note added
Phys.Rev.Lett.96:211301,2006
10.1103/PhysRevLett.96.211301
DESY06-014
hep-ph astro-ph hep-th
null
We investigate the cosmological moduli problem by studying a modulus decay in detail and find that the branching ratio of the gravitino production is generically of O(0.01-1), which causes another cosmological disaster. Consequently, the cosmological moduli problem cannot be solved simply by making the modulus mass h...
[ { "created": "Tue, 7 Feb 2006 15:13:09 GMT", "version": "v1" }, { "created": "Wed, 10 May 2006 08:50:14 GMT", "version": "v2" } ]
2008-11-26
[ [ "Endo", "Motoi", "" ], [ "Hamaguchi", "Koichi", "" ], [ "Takahashi", "Fuminobu", "" ] ]
We investigate the cosmological moduli problem by studying a modulus decay in detail and find that the branching ratio of the gravitino production is generically of O(0.01-1), which causes another cosmological disaster. Consequently, the cosmological moduli problem cannot be solved simply by making the modulus mass hea...
hep-ph/9607295
Joao Soares
Joao M. Soares (University of Massachusetts, Amherst)
Combining exclusive semi-leptonic and hadronic B decays to measure |V_ub|
Latex, 7 pages, no figures
Phys.Rev. D55 (1997) 1418-1420
10.1103/PhysRevD.55.1418
UMHEP-431
hep-ph
null
The Cabibbo-Kobayashi-Maskawa matrix element |V_ub| can be extracted from the rate for the semi-leptonic decay B -> pi + l + antineutrino_l, with little theoretical uncertainty, provided the hadronic form factor for the B -> pi transition can be measured from some other B decay. In here, we suggest using the decay B ...
[ { "created": "Thu, 11 Jul 1996 19:37:37 GMT", "version": "v1" }, { "created": "Thu, 26 Dec 1996 16:30:33 GMT", "version": "v2" }, { "created": "Wed, 23 Apr 1997 14:59:21 GMT", "version": "v3" } ]
2016-09-06
[ [ "Soares", "Joao M.", "", "University of Massachusetts, Amherst" ] ]
The Cabibbo-Kobayashi-Maskawa matrix element |V_ub| can be extracted from the rate for the semi-leptonic decay B -> pi + l + antineutrino_l, with little theoretical uncertainty, provided the hadronic form factor for the B -> pi transition can be measured from some other B decay. In here, we suggest using the decay B ->...
1510.03626
Luciano Maiani prof
H.-X. Chen, L. Maiani, A.D. Polosa, V. Riquer
Y(4260) --> gamma + X(3872) in the diquarkonium picture
references added and minor corrections, 11 pages, 1 figure
null
10.1140/epjc/s10052-015-3781-2
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The observed Y(4260)\to \gamma + X(3872) decay is a natural consequence of the diquark-antidiquark description of Y and X resonances. In this note we attempt an estimate of the transition rate, \Gamma_{\rm rad}, by a non-relativistic calculation of the electric dipole term of a diquarkonium bound state. We compute \G...
[ { "created": "Tue, 13 Oct 2015 11:21:14 GMT", "version": "v1" }, { "created": "Mon, 9 Nov 2015 09:18:30 GMT", "version": "v2" } ]
2016-01-20
[ [ "Chen", "H. -X.", "" ], [ "Maiani", "L.", "" ], [ "Polosa", "A. D.", "" ], [ "Riquer", "V.", "" ] ]
The observed Y(4260)\to \gamma + X(3872) decay is a natural consequence of the diquark-antidiquark description of Y and X resonances. In this note we attempt an estimate of the transition rate, \Gamma_{\rm rad}, by a non-relativistic calculation of the electric dipole term of a diquarkonium bound state. We compute \Gam...
1410.4817
Roberto Vega-Morales
Yi Chen, Emanuele DiMarco, Joe Lykken, Maria Spiropulu, Roberto Vega-Morales, Si Xie
Technical Note for 8D Likelihood Effective Higgs Couplings Extraction Framework in the Golden Channel
Technical note to accompany arXiv:1401.2077
null
null
FERMILAB-PUB-14-396-T, LPT-Orsay-14-76, nuhep-th/14-06
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this technical note we present technical details on various aspects of the framework introduced in arXiv:1401.2077 aimed at extracting effective Higgs couplings in the $h\to 4\ell$ `golden channel'. Since it is the primary feature of the framework, we focus in particular on the convolution integral which takes us ...
[ { "created": "Fri, 17 Oct 2014 18:28:33 GMT", "version": "v1" } ]
2014-10-20
[ [ "Chen", "Yi", "" ], [ "DiMarco", "Emanuele", "" ], [ "Lykken", "Joe", "" ], [ "Spiropulu", "Maria", "" ], [ "Vega-Morales", "Roberto", "" ], [ "Xie", "Si", "" ] ]
In this technical note we present technical details on various aspects of the framework introduced in arXiv:1401.2077 aimed at extracting effective Higgs couplings in the $h\to 4\ell$ `golden channel'. Since it is the primary feature of the framework, we focus in particular on the convolution integral which takes us fr...
1906.11862
Heribertus B. Hartanto
Heribertus Bayu Hartanto, Simon Badger, Christian Br{\o}nnum-Hansen, Tiziano Peraro
A numerical evaluation of planar two-loop helicity amplitudes for a W-boson plus four partons
24 pages, 3 figures
null
null
IPPP/19/56, ZU-TH 33/19
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present the first numerical results for the two-loop helicity amplitudes for the scattering of four partons and a W-boson in QCD. We use a finite field sampling method to reduce directly from Feynman diagrams to the coefficients of a set of master integrals after applying integration-by-parts identities. Since the...
[ { "created": "Thu, 27 Jun 2019 18:24:17 GMT", "version": "v1" } ]
2019-07-01
[ [ "Hartanto", "Heribertus Bayu", "" ], [ "Badger", "Simon", "" ], [ "Brønnum-Hansen", "Christian", "" ], [ "Peraro", "Tiziano", "" ] ]
We present the first numerical results for the two-loop helicity amplitudes for the scattering of four partons and a W-boson in QCD. We use a finite field sampling method to reduce directly from Feynman diagrams to the coefficients of a set of master integrals after applying integration-by-parts identities. Since the b...
hep-ph/0306243
Jose Ramon Espinosa
J.A. Casas, J.R. Espinosa and I. Navarro
Large mixing angles for neutrinos from infrared fixed points
36 pages, 7 ps figures
JHEP 0309 (2003) 048
10.1088/1126-6708/2003/09/048
IFT-UAM/CSIC-03-20
hep-ph
null
Radiative amplification of neutrino mixing angles may explain the large values required by solar and atmospheric neutrino oscillations. Implementation of such mechanism in the Standard Model and many of its extensions (including the Minimal Supersymmetric Standard Model) to amplify the solar angle, the atmospheric or...
[ { "created": "Tue, 24 Jun 2003 18:04:11 GMT", "version": "v1" } ]
2009-11-10
[ [ "Casas", "J. A.", "" ], [ "Espinosa", "J. R.", "" ], [ "Navarro", "I.", "" ] ]
Radiative amplification of neutrino mixing angles may explain the large values required by solar and atmospheric neutrino oscillations. Implementation of such mechanism in the Standard Model and many of its extensions (including the Minimal Supersymmetric Standard Model) to amplify the solar angle, the atmospheric or b...
0810.4685
Owe Philipsen
Owe Philipsen (ITP, U. Munster)
Static potentials for quarkonia at finite temperatures
8 p. 3 figures; Invited talk at 'Strong and Electroweak Matter 2008', 26-29 August, Amsterdam, The Netherlands
null
10.1016/j.nuclphysa.2009.01.016
MS-TP-08-27
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We review non-perturbative static potentials commonly used in potential models for quarkonia at finite T. Potentials derived from Polyakov loop correlators are shown to be inappropriate for this purpose. The q\bar{q} free energy is physical but has the wrong spatial decay and perturbative limit. The so-called singlet...
[ { "created": "Sun, 26 Oct 2008 11:53:20 GMT", "version": "v1" } ]
2009-11-13
[ [ "Philipsen", "Owe", "", "ITP, U. Munster" ] ]
We review non-perturbative static potentials commonly used in potential models for quarkonia at finite T. Potentials derived from Polyakov loop correlators are shown to be inappropriate for this purpose. The q\bar{q} free energy is physical but has the wrong spatial decay and perturbative limit. The so-called singlet f...
2004.12662
CaiChang Li
Gui-Jun Ding, Stephen F. King, Cai-Chang Li, Ye-Ling Zhou
Modular Invariant Models of Leptons at Level 7
45 pages, 3 figures
null
null
USTC-ICTS/PCFT-20-11
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider for the first time level 7 modular invariant flavour models where the lepton mixing originates from the breaking of modular symmetry and couplings responsible for lepton masses are modular forms. The latter are decomposed into irreducible multiplets of the finite modular group $\Gamma_7$, which is isomorp...
[ { "created": "Mon, 27 Apr 2020 09:22:01 GMT", "version": "v1" } ]
2020-04-28
[ [ "Ding", "Gui-Jun", "" ], [ "King", "Stephen F.", "" ], [ "Li", "Cai-Chang", "" ], [ "Zhou", "Ye-Ling", "" ] ]
We consider for the first time level 7 modular invariant flavour models where the lepton mixing originates from the breaking of modular symmetry and couplings responsible for lepton masses are modular forms. The latter are decomposed into irreducible multiplets of the finite modular group $\Gamma_7$, which is isomorphi...
1008.4479
Wan-lei Guo
Wan-Lei Guo, Yue-Liang Wu, Yu-Feng Zhou
Searching for Dark Matter Signals in the Left-Right Symmetric Gauge Model with CP Symmetry
24 pages, 8 figures. minor changes and a reference added, published in Phys. Rev. D
Phys.Rev.D82:095004,2010
10.1103/PhysRevD.82.095004
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate singlet scalar dark matter (DM) candidate in a left-right symmetric gauge model with two Higgs bidoublets (2HBDM) in which the stabilization of the DM particle is induced by the discrete symmetries P and CP. According to the observed DM abundance, we predict the DM direct and indirect detection cross s...
[ { "created": "Thu, 26 Aug 2010 11:38:41 GMT", "version": "v1" }, { "created": "Tue, 16 Nov 2010 09:11:22 GMT", "version": "v2" } ]
2010-12-13
[ [ "Guo", "Wan-Lei", "" ], [ "Wu", "Yue-Liang", "" ], [ "Zhou", "Yu-Feng", "" ] ]
We investigate singlet scalar dark matter (DM) candidate in a left-right symmetric gauge model with two Higgs bidoublets (2HBDM) in which the stabilization of the DM particle is induced by the discrete symmetries P and CP. According to the observed DM abundance, we predict the DM direct and indirect detection cross sec...
1507.08471
Yang Zhang
Junjie Cao, Liangliang Shang, Jin Min Yang, Yang Zhang
Explanation of the ATLAS Z-peaked excess by squark pair production in the NMSSM
19 pages, 4 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The ATLAS collaboration recently reported a $3\sigma$ excess in the leptonic-$Z+jets+E_{T}^{miss}$ channel. We intend to interpret this excess by squark pair production in the Next-to-Minimal Supersymmetric Standard Model (NMSSM). The decay chain we employ is $\tilde{q} \to q \tilde{\chi}_2^0 \to q \tilde{\chi}_1^0 Z...
[ { "created": "Thu, 30 Jul 2015 12:06:29 GMT", "version": "v1" }, { "created": "Mon, 3 Aug 2015 01:47:18 GMT", "version": "v2" }, { "created": "Wed, 23 Sep 2015 14:34:59 GMT", "version": "v3" } ]
2015-09-24
[ [ "Cao", "Junjie", "" ], [ "Shang", "Liangliang", "" ], [ "Yang", "Jin Min", "" ], [ "Zhang", "Yang", "" ] ]
The ATLAS collaboration recently reported a $3\sigma$ excess in the leptonic-$Z+jets+E_{T}^{miss}$ channel. We intend to interpret this excess by squark pair production in the Next-to-Minimal Supersymmetric Standard Model (NMSSM). The decay chain we employ is $\tilde{q} \to q \tilde{\chi}_2^0 \to q \tilde{\chi}_1^0 Z$,...
hep-ph/9504352
null
D.J. Broadhurst, D. Kreimer
Knots and Numbers in $\phi^4$ Theory to 7 Loops and Beyond
6 pages plain LaTex
Int.J.Mod.Phys. C6 (1995) 519-524
10.1142/S012918319500037X
OUT-4102-57
hep-ph hep-th math.QA q-alg
null
We evaluate all the primitive divergences contributing to the 7--loop $\beta$\/--function of $\phi^4$ theory, i.e.\ all 59 diagrams that are free of subdivergences and hence give scheme--independent contributions. Guided by the association of diagrams with knots, we obtain analytical results for 56 diagrams. The rema...
[ { "created": "Fri, 21 Apr 1995 14:27:00 GMT", "version": "v1" } ]
2009-10-28
[ [ "Broadhurst", "D. J.", "" ], [ "Kreimer", "D.", "" ] ]
We evaluate all the primitive divergences contributing to the 7--loop $\beta$\/--function of $\phi^4$ theory, i.e.\ all 59 diagrams that are free of subdivergences and hence give scheme--independent contributions. Guided by the association of diagrams with knots, we obtain analytical results for 56 diagrams. The remain...
0902.1211
Mauro Napsuciale
C. A. Vaquera-Araujo, M. Napsuciale
Is there an isovector companion of the X(2175)?
revised version accepted in PLB
Phys.Lett.B681:434-438,2009
10.1016/j.physletb.2009.10.049
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this letter we study the reaction e^{+}e^{-}\to\phi \pi^0 \eta with the \pi^{0}\eta system in an isoscalar s-wave configuration. We use a formalism recently developed for the study of e^{+}e^{-}\to\phi \pi\pi and e^{+}e^{-}\to\phi K^{+}K^{-}. The obtained cross section is within the reach of present e^{+}e^{-} mac...
[ { "created": "Sat, 7 Feb 2009 01:43:15 GMT", "version": "v1" }, { "created": "Sun, 25 Oct 2009 16:45:53 GMT", "version": "v2" } ]
2014-11-18
[ [ "Vaquera-Araujo", "C. A.", "" ], [ "Napsuciale", "M.", "" ] ]
In this letter we study the reaction e^{+}e^{-}\to\phi \pi^0 \eta with the \pi^{0}\eta system in an isoscalar s-wave configuration. We use a formalism recently developed for the study of e^{+}e^{-}\to\phi \pi\pi and e^{+}e^{-}\to\phi K^{+}K^{-}. The obtained cross section is within the reach of present e^{+}e^{-} machi...
2104.07994
Sven-Olaf Moch
S. Moch and V. Magerya
Calculating Four-Loop Corrections in QCD
13 pages LaTeX, 2 figures; based on the talk given by S.Moch at the DESY workshop "Antidifferentiation and the Calculation of Feynman Amplitudes", Zeuthen, Oct 04-09, 2020
null
null
DESY 21-047, KA-TP-05-2021
hep-ph
http://creativecommons.org/licenses/by/4.0/
We review the current status of perturbative corrections in QCD at four loops for scattering processes with space- and time-like kinematics at colliders, with specific focus on deep-inelastic scattering and electron-positron annihilation. The calculations build on the parametric reduction of loop and phase space inte...
[ { "created": "Fri, 16 Apr 2021 09:44:03 GMT", "version": "v1" } ]
2021-04-19
[ [ "Moch", "S.", "" ], [ "Magerya", "V.", "" ] ]
We review the current status of perturbative corrections in QCD at four loops for scattering processes with space- and time-like kinematics at colliders, with specific focus on deep-inelastic scattering and electron-positron annihilation. The calculations build on the parametric reduction of loop and phase space integr...
2010.08535
Linda Ghegal
Linda Ghegal
Probing Space-Time Noncommutativity in the Bhabha Scattering
null
null
10.5506/APhysPolB.51.2031
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate Bhabha scattering with the Seiberg-Witten expended noncommutative standard model scenario to first order of the noncommutativity parameter $\Theta_{\mu \nu }$. This study is based on the definition of the noncommutativity parameter that we have assumed. We explore the noncommutative scale $\Lambda_{_{N...
[ { "created": "Thu, 15 Oct 2020 16:01:52 GMT", "version": "v1" } ]
2020-12-30
[ [ "Ghegal", "Linda", "" ] ]
We investigate Bhabha scattering with the Seiberg-Witten expended noncommutative standard model scenario to first order of the noncommutativity parameter $\Theta_{\mu \nu }$. This study is based on the definition of the noncommutativity parameter that we have assumed. We explore the noncommutative scale $\Lambda_{_{NC}...
hep-ph/0609214
Luis Anchordoqui
Luis A. Anchordoqui, Carlos A. Garcia Canal, Haim Goldberg, Daniel Gomez Dumm, and Francis Halzen
Probing leptoquark production at IceCube
Matching version to be published in Phys. Rev. D
Phys.Rev.D74:125021,2006
10.1103/PhysRevD.74.125021
null
hep-ph astro-ph hep-th
null
We emphasize the inelasticity distribution of events detected at the IceCube neutrino telescope as an important tool for revealing new physics. This is possible because the unique energy resolution at this facility allows to separately assign the energy fractions for emergent muons and taus in neutrino interactions. ...
[ { "created": "Thu, 21 Sep 2006 17:48:32 GMT", "version": "v1" }, { "created": "Tue, 5 Dec 2006 14:55:50 GMT", "version": "v2" } ]
2008-11-26
[ [ "Anchordoqui", "Luis A.", "" ], [ "Canal", "Carlos A. Garcia", "" ], [ "Goldberg", "Haim", "" ], [ "Dumm", "Daniel Gomez", "" ], [ "Halzen", "Francis", "" ] ]
We emphasize the inelasticity distribution of events detected at the IceCube neutrino telescope as an important tool for revealing new physics. This is possible because the unique energy resolution at this facility allows to separately assign the energy fractions for emergent muons and taus in neutrino interactions. As...
hep-ph/9704267
null
V.S. Fadin, M.I. Kotsky, L.N. Lipatov
Gluon Pair Production in the Quasi-Multi-Regge Kinematics
15 pages, LaTeX, 1 eps-figure is included
null
null
BudkerINP 96-92
hep-ph
null
To find the region of applicability of the leading log(1/x) approximation for parton distributions in the small x region and to fix the argument of the QCD running coupling it is necessary to know radiative corrections to the kernel of the BFKL equation. The next-to-leading corrections to the BFKL kernel are expresse...
[ { "created": "Wed, 9 Apr 1997 08:05:40 GMT", "version": "v1" }, { "created": "Thu, 10 Apr 1997 10:48:51 GMT", "version": "v2" } ]
2008-02-03
[ [ "Fadin", "V. S.", "" ], [ "Kotsky", "M. I.", "" ], [ "Lipatov", "L. N.", "" ] ]
To find the region of applicability of the leading log(1/x) approximation for parton distributions in the small x region and to fix the argument of the QCD running coupling it is necessary to know radiative corrections to the kernel of the BFKL equation. The next-to-leading corrections to the BFKL kernel are expressed ...
hep-ph/0012245
Covi Laura
Laura Covi (DESY)
Models of inflation, supersymmetry breaking and observational constraints
16 pages, 2 figures, LaTeX. To appear in the Proceedings of the Conference ``DARK2000 - Third international conference on dark matter in astro and particle physics'' at Heidelberg, Germanyon 10-15 July 2000
null
null
DESY-00-184
hep-ph
null
We review the connection between inflationary models and observations and concentrate to describe models based on softly broken supersymmetry, in particular running mass models, and their predictions. We then present a fit of the spectral index of the curvature perturbation, assuming a flat $\Lambda$CDM cosmology.
[ { "created": "Tue, 19 Dec 2000 14:41:52 GMT", "version": "v1" } ]
2007-05-23
[ [ "Covi", "Laura", "", "DESY" ] ]
We review the connection between inflationary models and observations and concentrate to describe models based on softly broken supersymmetry, in particular running mass models, and their predictions. We then present a fit of the spectral index of the curvature perturbation, assuming a flat $\Lambda$CDM cosmology.
1912.04888
Keith Olive
John Ellis, Jason L. Evans, Natsumi Nagata, Keith A. Olive, and Liliana Velasco-Sevilla
Supersymmetric Proton Decay Revisited
53 pages, 17 figures
null
10.1140/epjc/s10052-020-7872-3
KCL-PH-TH/2019-91, CERN-TH-2019-216, UT-19-30, UMN-TH-3907/19, FTPI-MINN-19/28
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Encouraged by the advent of a new generation of underground detectors---JUNO, DUNE and Hyper-Kamiokande---that are projected to improve significantly on the present sensitivities to various baryon decay modes, we revisit baryon decay in the minimal supersymmetric SU(5) GUT. We discuss the phenomenological uncertainti...
[ { "created": "Tue, 10 Dec 2019 18:55:57 GMT", "version": "v1" } ]
2020-05-20
[ [ "Ellis", "John", "" ], [ "Evans", "Jason L.", "" ], [ "Nagata", "Natsumi", "" ], [ "Olive", "Keith A.", "" ], [ "Velasco-Sevilla", "Liliana", "" ] ]
Encouraged by the advent of a new generation of underground detectors---JUNO, DUNE and Hyper-Kamiokande---that are projected to improve significantly on the present sensitivities to various baryon decay modes, we revisit baryon decay in the minimal supersymmetric SU(5) GUT. We discuss the phenomenological uncertainties...
1905.13335
Ermal Rrapaj
Ermal Rrapaj
Exact solution of multi-angle quantum many-body collective neutrino flavor oscillations
null
Phys. Rev. C 101, 065805 (2020)
10.1103/PhysRevC.101.065805
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
I study the flavor evolution of a dense neutrino gas by considering vacuum contributions, matter effects and neutrino self-interactions. Assuming a system of two flavors in a uniform matter background, the time evolution of the many-body system in discretized momentum space is computed. The multi-angle neutrino-neutr...
[ { "created": "Thu, 30 May 2019 22:11:14 GMT", "version": "v1" }, { "created": "Mon, 15 Jul 2019 17:40:37 GMT", "version": "v2" }, { "created": "Mon, 19 Aug 2019 21:08:54 GMT", "version": "v3" }, { "created": "Thu, 25 Jun 2020 16:21:10 GMT", "version": "v4" } ]
2020-07-01
[ [ "Rrapaj", "Ermal", "" ] ]
I study the flavor evolution of a dense neutrino gas by considering vacuum contributions, matter effects and neutrino self-interactions. Assuming a system of two flavors in a uniform matter background, the time evolution of the many-body system in discretized momentum space is computed. The multi-angle neutrino-neutrin...
hep-ph/0305011
Ralf Rapp
R. Rapp
Pi+ Pi- Emission in High-Energy Nuclear Collisions
9 pages RevTeX including 5 eps-figures, summary slightly expanded and 5 references added
Nucl.Phys. A725 (2003) 254-268
10.1016/S0375-9474(03)01581-1
null
hep-ph nucl-th
null
Realistic vacuum $\pi\pi$ interactions are employed to investigate thermal $\pi^+\pi^-$ emission spectra from the late stages of heavy-ion reactions at ultrarelativistic energies. Hadronic in-medium effects, including many-body $\rho$-meson spectral functions used earlier to describe the dilepton excess observed at C...
[ { "created": "Thu, 1 May 2003 19:36:46 GMT", "version": "v1" }, { "created": "Sat, 10 May 2003 20:37:28 GMT", "version": "v2" } ]
2009-11-10
[ [ "Rapp", "R.", "" ] ]
Realistic vacuum $\pi\pi$ interactions are employed to investigate thermal $\pi^+\pi^-$ emission spectra from the late stages of heavy-ion reactions at ultrarelativistic energies. Hadronic in-medium effects, including many-body $\rho$-meson spectral functions used earlier to describe the dilepton excess observed at CER...
hep-ph/9910473
Dario Grasso
Dario Grasso and Anna Rossi (Padua U.,Italy)
Macroscopic Forces driven by Resonant Neutrino Conversion
9 LaTeX pages, 1 ps figure file. Format changed. One formula corrected. Some comments added to the text. Accepted for publication on Phys. Lett. B
Phys.Lett. B483 (2000) 157-162
10.1016/S0370-2693(00)00594-3
DFPD/99/TH/45
hep-ph astro-ph
null
We show that neutrino oscillations in matter are always accompanied by collective forces on the medium. This effect may produce interesting consequences for the background and the neutrino oscillations themselves. The force is maximal in the case of resonant neutrino conversion in the adiabatic regime. We study here ...
[ { "created": "Mon, 25 Oct 1999 14:39:43 GMT", "version": "v1" }, { "created": "Wed, 10 May 2000 13:19:58 GMT", "version": "v2" } ]
2009-10-31
[ [ "Grasso", "Dario", "", "Padua U.,Italy" ], [ "Rossi", "Anna", "", "Padua U.,Italy" ] ]
We show that neutrino oscillations in matter are always accompanied by collective forces on the medium. This effect may produce interesting consequences for the background and the neutrino oscillations themselves. The force is maximal in the case of resonant neutrino conversion in the adiabatic regime. We study here th...
hep-ph/0506308
Arata Hayashigaki
Adrian Dumitru, Arata Hayashigaki and Jamal Jalilian-Marian
The Color Glass Condensate and hadron production in the forward region
Final version to appear in NPA; 22 pages, 10 figures, v3; three new figures in appendix show that BRAHMS/STAR kinematics probe momentum fractions in the nucleus of 0.001 - 0.0001
Nucl.Phys.A765:464-482,2006
10.1016/j.nuclphysa.2005.11.014
INT-PUB 05-14
hep-ph nucl-ex nucl-th
null
We consider one loop corrections to single inclusive particle production in parton-nucleus scattering at high energies, treating the target nucleus as a Color Glass Condensate. We prove by explicit computation that in the leading log Q^2 approximation, these corrections lead to collinear factorization and DGLAP evolu...
[ { "created": "Wed, 29 Jun 2005 15:08:21 GMT", "version": "v1" }, { "created": "Mon, 11 Jul 2005 10:15:26 GMT", "version": "v2" }, { "created": "Tue, 6 Sep 2005 15:49:18 GMT", "version": "v3" } ]
2014-11-18
[ [ "Dumitru", "Adrian", "" ], [ "Hayashigaki", "Arata", "" ], [ "Jalilian-Marian", "Jamal", "" ] ]
We consider one loop corrections to single inclusive particle production in parton-nucleus scattering at high energies, treating the target nucleus as a Color Glass Condensate. We prove by explicit computation that in the leading log Q^2 approximation, these corrections lead to collinear factorization and DGLAP evoluti...
1705.10458
Sukadev Sahoo
D. Banerjee and S. Sahoo
Analysis of ${\Lambda}_b\rightarrow{\Lambda}l^+ l^-$ rare decays in a non-universal $Z'$ model
20 pages, 7 figures, 3 tables, It is accepted and to be published in Chinese Physics C
Chinese Physics C, Vol. 41, Issue. 8, pp. 083101 (10 pages August 2017)
10.1088/1674-1137/41/8/083101
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the rare baryonic ${\Lambda}_b\rightarrow{\Lambda}l^+ l^-$ decays in a non-universal $Z'$ model, which is one of the well-motivated extensions of the standard model (SM). Considering the effects of $Z'$-mediated flavour-changing neutral currents (FCNCs) we analyse the differential decay rate, forward-b...
[ { "created": "Tue, 30 May 2017 05:31:10 GMT", "version": "v1" } ]
2017-12-18
[ [ "Banerjee", "D.", "" ], [ "Sahoo", "S.", "" ] ]
We investigate the rare baryonic ${\Lambda}_b\rightarrow{\Lambda}l^+ l^-$ decays in a non-universal $Z'$ model, which is one of the well-motivated extensions of the standard model (SM). Considering the effects of $Z'$-mediated flavour-changing neutral currents (FCNCs) we analyse the differential decay rate, forward-bac...
2405.18054
Andrei Prokhorov
S.P. Baranov, A.V. Lipatov, M.A. Malyshev, A.A. Prokhorov, P.M. Zhang
Forward $J/\psi + J/\psi$ and $J/\psi + \psi^\prime$ production with High Energy Factorization
null
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We calculate the cross sections of associated $J/\psi + \psi^\prime$ and $J/\psi + J/\psi$ production in $pp$ collisions at $\sqrt s = 13$ TeV in the forward kinematic region. The High Energy Factorization ($k_T$-factorization) framework supplemented with the Catani-Ciafaloni-Fiorani-Marchesini evolution of gluon den...
[ { "created": "Tue, 28 May 2024 11:09:37 GMT", "version": "v1" } ]
2024-05-29
[ [ "Baranov", "S. P.", "" ], [ "Lipatov", "A. V.", "" ], [ "Malyshev", "M. A.", "" ], [ "Prokhorov", "A. A.", "" ], [ "Zhang", "P. M.", "" ] ]
We calculate the cross sections of associated $J/\psi + \psi^\prime$ and $J/\psi + J/\psi$ production in $pp$ collisions at $\sqrt s = 13$ TeV in the forward kinematic region. The High Energy Factorization ($k_T$-factorization) framework supplemented with the Catani-Ciafaloni-Fiorani-Marchesini evolution of gluon densi...
2407.13385
Weitao Ye
Zhaofeng Kang, Tianjun Li and Weitao Ye
The Stochastic Gravitational Wave Background from Primordial Gravitational Atoms
null
null
null
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a scenario of primordial gravitational atoms (PGAs), which may exist in the current and past universe due to spinning primordial black holes (PBHs) and very light bosonic fields. In a monochromatic mass scenario with a sizable dimensionless spin, which may arise in a short matter dominated (MD) era, we ana...
[ { "created": "Thu, 18 Jul 2024 10:43:32 GMT", "version": "v1" } ]
2024-07-22
[ [ "Kang", "Zhaofeng", "" ], [ "Li", "Tianjun", "" ], [ "Ye", "Weitao", "" ] ]
We propose a scenario of primordial gravitational atoms (PGAs), which may exist in the current and past universe due to spinning primordial black holes (PBHs) and very light bosonic fields. In a monochromatic mass scenario with a sizable dimensionless spin, which may arise in a short matter dominated (MD) era, we analy...
2301.08152
Oleg Boyarkin
O. M. Boyarkin and I. O. Boyarkina
Neutrino oscillations in vortex and twisting magnetic fields
25 pages
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
The behavior of the neutrino flux in vortex and twisting magnetic fields is considered within the left-right symmetric model. By way of illustration of the magnetic fields we discuss the magnetic fields of the coupled sunspots (CS's) which are the sources of the future solar flares. It is expected that the neutrinos ...
[ { "created": "Thu, 19 Jan 2023 16:14:27 GMT", "version": "v1" }, { "created": "Mon, 23 Jan 2023 13:19:12 GMT", "version": "v2" }, { "created": "Sat, 15 Jul 2023 17:59:41 GMT", "version": "v3" } ]
2023-07-18
[ [ "Boyarkin", "O. M.", "" ], [ "Boyarkina", "I. O.", "" ] ]
The behavior of the neutrino flux in vortex and twisting magnetic fields is considered within the left-right symmetric model. By way of illustration of the magnetic fields we discuss the magnetic fields of the coupled sunspots (CS's) which are the sources of the future solar flares. It is expected that the neutrinos ha...
2001.00175
Xiang Liu
Jun-Zhang Wang, Ri-Qing Qian, Xiang Liu and Takayuki Matsuki
Are the $Y$ states around 4.6 GeV from $e^+e^-$ annihilation higher charmonia?
11 pages, 4 tables and 8 figures. More discussions and references added. Accepted by Phys. Rev. D
Phys. Rev. D 101, 034001 (2020)
10.1103/PhysRevD.101.034001
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, we present the mass spectrum of higher charomona around and above 4.6 GeV by adopting the unquenched potential model. We perform a combined fit to the updated experimental data of $e^+e^- \to \psi(2S)\pi^+\pi^-$ and $e^+e^-\to \Lambda_c\bar{\Lambda}_c$. To understand the "platform" structure observed in...
[ { "created": "Wed, 1 Jan 2020 09:33:20 GMT", "version": "v1" }, { "created": "Wed, 22 Jan 2020 02:25:44 GMT", "version": "v2" } ]
2020-02-06
[ [ "Wang", "Jun-Zhang", "" ], [ "Qian", "Ri-Qing", "" ], [ "Liu", "Xiang", "" ], [ "Matsuki", "Takayuki", "" ] ]
In this work, we present the mass spectrum of higher charomona around and above 4.6 GeV by adopting the unquenched potential model. We perform a combined fit to the updated experimental data of $e^+e^- \to \psi(2S)\pi^+\pi^-$ and $e^+e^-\to \Lambda_c\bar{\Lambda}_c$. To understand the "platform" structure observed in t...
hep-ph/0303098
C. Pallis
C. Pallis and M.E. Gomez
Yukawa Quasi-Unification and Neutralino Relic Density
null
null
null
SISSA-19/2003/EP
hep-ph
null
The construction of a Supersymmetric Grand Unified Model based on the Pati-Salam gauge group is briefly reviewed and the low energy consequences of the derived asymptotic Yukawa quasi-unification conditions are examined. In the framework of the resulting Constrained Minimal Supersymmetric Standard Model, the cosmolog...
[ { "created": "Wed, 12 Mar 2003 18:15:27 GMT", "version": "v1" } ]
2007-05-23
[ [ "Pallis", "C.", "" ], [ "Gomez", "M. E.", "" ] ]
The construction of a Supersymmetric Grand Unified Model based on the Pati-Salam gauge group is briefly reviewed and the low energy consequences of the derived asymptotic Yukawa quasi-unification conditions are examined. In the framework of the resulting Constrained Minimal Supersymmetric Standard Model, the cosmologic...
1909.02018
Vedran Brdar
Vedran Brdar, Lukas Graf, Alexander J. Helmboldt, Xun-Jie Xu
Gravitational Waves as a Probe of Left-Right Symmetry Breaking
21 pages, 3 figures
JCAP12(2019)027
10.1088/1475-7516/2019/12/027
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Left-right symmetry at high energy scales is a well-motivated extension of the Standard Model. In this paper we consider a typical minimal scenario in which it gets spontaneously broken by scalar triplets. Such a realization has been scrutinized over the past few decades chiefly in the context of collider studies. In...
[ { "created": "Wed, 4 Sep 2019 18:00:06 GMT", "version": "v1" }, { "created": "Mon, 9 Dec 2019 16:50:29 GMT", "version": "v2" } ]
2019-12-10
[ [ "Brdar", "Vedran", "" ], [ "Graf", "Lukas", "" ], [ "Helmboldt", "Alexander J.", "" ], [ "Xu", "Xun-Jie", "" ] ]
Left-right symmetry at high energy scales is a well-motivated extension of the Standard Model. In this paper we consider a typical minimal scenario in which it gets spontaneously broken by scalar triplets. Such a realization has been scrutinized over the past few decades chiefly in the context of collider studies. In t...
hep-ph/9910400
Alexander Belyaev
A.Belyaev, M.Drees, O.J.P Eboli, J.K. Mizukoshi, S.F. Novaes
Supersymmetric Higgs pair discovery prospects at hadron colliders
5 pages, hep99, 6 figures; Presented at the International Europhysics Conference on High Energy Physics, Tampere, Finland, 15-21 July 1999
null
null
CERN-TH/99-325
hep-ph
null
We study the potential of hadron colliders in the search for the pair production of neutral Higgs bosons in the framework of the Minimal Supersymmetric Standard Model. Using analytical expressions for the relevant amplitudes, we perform a detailed signal and background analysis, working out efficient kinematical cuts...
[ { "created": "Tue, 19 Oct 1999 10:51:08 GMT", "version": "v1" }, { "created": "Fri, 12 Nov 1999 13:30:52 GMT", "version": "v2" } ]
2007-05-23
[ [ "Belyaev", "A.", "" ], [ "Drees", "M.", "" ], [ "Eboli", "O. J. P", "" ], [ "Mizukoshi", "J. K.", "" ], [ "Novaes", "S. F.", "" ] ]
We study the potential of hadron colliders in the search for the pair production of neutral Higgs bosons in the framework of the Minimal Supersymmetric Standard Model. Using analytical expressions for the relevant amplitudes, we perform a detailed signal and background analysis, working out efficient kinematical cuts f...
0711.3069
Artem Lipatov
A.V. Lipatov, N.P. Zotov
Beauty production in two-photon interactions at LEP2: kt-factorization versus data
10 pages, 4 figures
JETP Lett.87:7-11,2008
10.1007/s11448-008-1003-y
null
hep-ph
null
Inclusive beauty quark production in photon-photon collisions at CERN LEP2 is considered in the framework of the kt-factorization approach. Both direct and resolved photon contributions are taken into account. The unintegrated gluon distributions in a photon are either obtained from the full CCFM evolution equation o...
[ { "created": "Tue, 20 Nov 2007 06:44:30 GMT", "version": "v1" } ]
2011-03-23
[ [ "Lipatov", "A. V.", "" ], [ "Zotov", "N. P.", "" ] ]
Inclusive beauty quark production in photon-photon collisions at CERN LEP2 is considered in the framework of the kt-factorization approach. Both direct and resolved photon contributions are taken into account. The unintegrated gluon distributions in a photon are either obtained from the full CCFM evolution equation or ...
0810.0020
Pavel Nadolsky
Edmond L. Berger, Pavel M. Nadolsky
Longitudinal parity-violating asymmetry in hadronic decays of weak bosons in polarized proton collisions
16 pages, 6 figures; accepted by Phys. Rev. D; extended discussion of the sensitivity of A_L to the down-type antiquark PDF and other minor modifications
Phys.Rev.D78:114010,2008
10.1103/PhysRevD.78.114010
ANL-HEP-PR-08-59, NSF-KITP-08-46, SMU-HEP-08-16
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the possible measurement of parity-violating spin asymmetries in jet pair production in proton-proton collisions at the Brookhaven Relativistic Heavy Ion Collider (RHIC), with the goal to constrain longitudinally polarized quark and antiquark distribution functions. A measurable asymmetry could be obse...
[ { "created": "Wed, 1 Oct 2008 17:48:32 GMT", "version": "v1" }, { "created": "Mon, 10 Nov 2008 17:49:41 GMT", "version": "v2" } ]
2008-12-30
[ [ "Berger", "Edmond L.", "" ], [ "Nadolsky", "Pavel M.", "" ] ]
We investigate the possible measurement of parity-violating spin asymmetries in jet pair production in proton-proton collisions at the Brookhaven Relativistic Heavy Ion Collider (RHIC), with the goal to constrain longitudinally polarized quark and antiquark distribution functions. A measurable asymmetry could be observ...
hep-ph/9902478
Asakawa Eri
Eri Asakawa, Miho Marui, Noriyuki Oshimo, Tomomi Saito, and Akio Sugamoto
CP-odd WWZ couplings induced by vector-like quarks
13 pages, 3 Postscript figures, figure sizes changed
Eur.Phys.J.C10:327-330,1999
10.1007/s100529900117
ICRR-Report-448-99-6, OCHA-PP-132, KURE-PP/99-01
hep-ph
null
A minimal extension of the standard model includes extra quarks with charges 2/3 and/or -1/3, whose left-handed and right-handed components are both SU(2) singlets. This model predicts new interactions of flavor-changing neutral current at the tree level, which also violate CP invariance. We study CP-odd anomalous co...
[ { "created": "Fri, 26 Feb 1999 12:01:10 GMT", "version": "v1" }, { "created": "Sat, 13 Mar 1999 09:44:01 GMT", "version": "v2" } ]
2011-09-13
[ [ "Asakawa", "Eri", "" ], [ "Marui", "Miho", "" ], [ "Oshimo", "Noriyuki", "" ], [ "Saito", "Tomomi", "" ], [ "Sugamoto", "Akio", "" ] ]
A minimal extension of the standard model includes extra quarks with charges 2/3 and/or -1/3, whose left-handed and right-handed components are both SU(2) singlets. This model predicts new interactions of flavor-changing neutral current at the tree level, which also violate CP invariance. We study CP-odd anomalous coup...
1609.08847
Oleg Selyugin
O.V. Selyugin
The energy dependence of the diffraction minimum in the elastic scattering and new LHC data
10 pages, 3 Tables, 8 figures (add the journal reference)
Nucl.Phys. A 959 (2017) 116-128
10.1016/j.nuclphysa.2017.01.002
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The soft diffraction phenomena in the elastic proton-proton scattering are reviewed from the viewpoint of experiments at the LHC (TOTEM and ATLAS collaboration). In the framework of the High Energy Generalized Structure (HEGS) model the form of the diffraction minimum in the nucleon-nucleon elastic scattering in a wi...
[ { "created": "Wed, 28 Sep 2016 10:12:28 GMT", "version": "v1" }, { "created": "Fri, 28 Oct 2016 11:00:32 GMT", "version": "v2" }, { "created": "Mon, 14 Nov 2016 10:16:32 GMT", "version": "v3" }, { "created": "Thu, 12 Jan 2017 11:08:14 GMT", "version": "v4" }, { "c...
2017-04-17
[ [ "Selyugin", "O. V.", "" ] ]
The soft diffraction phenomena in the elastic proton-proton scattering are reviewed from the viewpoint of experiments at the LHC (TOTEM and ATLAS collaboration). In the framework of the High Energy Generalized Structure (HEGS) model the form of the diffraction minimum in the nucleon-nucleon elastic scattering in a wide...
1108.4903
Alessandro Strumia
Martti Raidal and Alessandro Strumia
Hints for a non-standard Higgs boson from the LHC
6 pages, 2 figures. Final version to appear on PRD
null
10.1103/PhysRevD.84.077701
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We reconsider Higgs boson invisible decays into Dark Matter in the light of recent Higgs searches at the LHC. Present hints in the CMS and ATLAS data favor a non-standard Higgs boson with approximately 50% invisible branching ratio, and mass around 143 GeV. This situation can be realized within the simplest thermal s...
[ { "created": "Wed, 24 Aug 2011 18:20:03 GMT", "version": "v1" }, { "created": "Sat, 24 Sep 2011 19:10:18 GMT", "version": "v2" } ]
2015-05-30
[ [ "Raidal", "Martti", "" ], [ "Strumia", "Alessandro", "" ] ]
We reconsider Higgs boson invisible decays into Dark Matter in the light of recent Higgs searches at the LHC. Present hints in the CMS and ATLAS data favor a non-standard Higgs boson with approximately 50% invisible branching ratio, and mass around 143 GeV. This situation can be realized within the simplest thermal sca...
0907.5159
Mingzhe Li
Mingzhe Li, Yi-Fu Cai, Xiulian Wang, Xinmin Zhang
$CPT$ Violating Electrodynamics and Chern-Simons Modified Gravity
11 pages, 1 figure, the version to appear in Physics Letters B
Phys.Lett.B680:118-124,2009
10.1016/j.physletb.2009.08.053
null
hep-ph astro-ph.CO gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The electrodynamics with a Chern-Simons term $p_{\mu}A_{\nu}\widetilde{F}^{\mu\nu}$ violates Lorentz and $CPT$ symmetries with a non-vanishing $p_{\mu}$. For a fixed vector $p_{\mu}$, in this paper we point out that the energy-momentum tensor of this theory coupled to the gravity minimally is symmetric but not diverg...
[ { "created": "Wed, 29 Jul 2009 15:32:36 GMT", "version": "v1" }, { "created": "Thu, 27 Aug 2009 03:49:53 GMT", "version": "v2" } ]
2009-10-16
[ [ "Li", "Mingzhe", "" ], [ "Cai", "Yi-Fu", "" ], [ "Wang", "Xiulian", "" ], [ "Zhang", "Xinmin", "" ] ]
The electrodynamics with a Chern-Simons term $p_{\mu}A_{\nu}\widetilde{F}^{\mu\nu}$ violates Lorentz and $CPT$ symmetries with a non-vanishing $p_{\mu}$. For a fixed vector $p_{\mu}$, in this paper we point out that the energy-momentum tensor of this theory coupled to the gravity minimally is symmetric but not divergen...
hep-ph/0011159
Gary Felder
Gary Felder and Igor Tkachev
LATTICEEASY: A Program for Lattice Simulations of Scalar Fields in an Expanding Universe
4 pages, 2 figures
Comput.Phys.Commun.178:929-932.2008
10.1016/j.cpc.2008.02.009
null
hep-ph gr-qc hep-lat hep-th
null
We describe a C++ program that we have written and made available for calculating the evolution of interacting scalar fields in an expanding universe. The program is particularly useful for the study of reheating and thermalization after inflation. The program and its full documentation are available on the Web at ht...
[ { "created": "Mon, 13 Nov 2000 16:59:24 GMT", "version": "v1" } ]
2010-11-11
[ [ "Felder", "Gary", "" ], [ "Tkachev", "Igor", "" ] ]
We describe a C++ program that we have written and made available for calculating the evolution of interacting scalar fields in an expanding universe. The program is particularly useful for the study of reheating and thermalization after inflation. The program and its full documentation are available on the Web at http...
1303.2917
Leo Stodolsky
Leo Stodolsky
Observability of`Cascade Mixing' in B0 --> J/psi K0
21 pages, 3 tables, no figures, many small corrections and improvements, notation for m_k made consistent. One substantive change: sign of Eq 51, corresponding element in Table 3 changed
null
10.1103/PhysRevD.87.096007
null
hep-ph quant-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In high statistics observations of B^o --> J/\psi K0, originating from the process Upsilon(4S)--> B0 B0, it should be possible to observe `cascade mixing', where one mixing particle, the B0, turns into another, the K0. This is possible despite the difficulty that the length of the beam crossing region makes a precise...
[ { "created": "Tue, 12 Mar 2013 15:35:11 GMT", "version": "v1" }, { "created": "Fri, 19 Apr 2013 10:03:26 GMT", "version": "v2" } ]
2013-05-22
[ [ "Stodolsky", "Leo", "" ] ]
In high statistics observations of B^o --> J/\psi K0, originating from the process Upsilon(4S)--> B0 B0, it should be possible to observe `cascade mixing', where one mixing particle, the B0, turns into another, the K0. This is possible despite the difficulty that the length of the beam crossing region makes a precise d...
hep-ph/9706280
J. L. Chkareuli
Jon Chkareuli
Natural Flavour-Unifying GUTs: SU(8)
9 pages, LaTeX, Talk given at the Trieste Conference on Quarks and Leptons: Masses and Mixings (Trieste, October 7-11, 1996)
null
null
IOP-TH-97/12
hep-ph
null
Some implications of flavour unification in supersymmetric Grand Unified Theories are briefly reviewed. We argue that the gauge hierarchy phenomenon properly interpreted in terms of the natural missing VEV solution for the adjoint scalar in general SU(N) SUSY GUT could give insight into both of the basic features of ...
[ { "created": "Sat, 7 Jun 1997 16:55:30 GMT", "version": "v1" } ]
2007-05-23
[ [ "Chkareuli", "Jon", "" ] ]
Some implications of flavour unification in supersymmetric Grand Unified Theories are briefly reviewed. We argue that the gauge hierarchy phenomenon properly interpreted in terms of the natural missing VEV solution for the adjoint scalar in general SU(N) SUSY GUT could give insight into both of the basic features of lo...
hep-ph/9910351
Amir Fariborz
Deirdre Black, Amir H. Fariborz, Joseph Schechter
Chiral Lagrangian treatment of pi eta scattering
29 pages, 15 figures
Phys.Rev.D61:074030,2000
10.1103/PhysRevD.61.074030
SU-4240-711
hep-ph
null
We study pi eta scattering in a model which starts from the tree diagrams of a non-linear chiral Lagrangian including appropriate resonances. Previously, models of this type were applied to pi pi and pi K scattering and were seen to require the existence of light scalar sigma(560) and kappa(900) mesons and to be cons...
[ { "created": "Fri, 15 Oct 1999 00:41:52 GMT", "version": "v1" } ]
2008-11-26
[ [ "Black", "Deirdre", "" ], [ "Fariborz", "Amir H.", "" ], [ "Schechter", "Joseph", "" ] ]
We study pi eta scattering in a model which starts from the tree diagrams of a non-linear chiral Lagrangian including appropriate resonances. Previously, models of this type were applied to pi pi and pi K scattering and were seen to require the existence of light scalar sigma(560) and kappa(900) mesons and to be consis...
hep-ph/9907565
Don Colladay
Don Colladay
Possible Spontaneous Breaking of Lorentz and CPT Symmetry
Talk presented at Non-Accelerator New Physics, Dubna, Russia, July 1999
Phys.Atom.Nucl.63:1097-1102,2000; Yad.Fiz.63N6:1172-1177,2000
10.1134/1.855753
null
hep-ph
null
One possible ramification of unified theories of nature such as string theory that may underlie the conventional standard model is the possible spontaneous breakdown of Lorentz and CPT symmetry. In this talk, the formalism for inclusion of such effects into a low-energy effective field theory is presented. An extensi...
[ { "created": "Fri, 30 Jul 1999 15:25:44 GMT", "version": "v1" } ]
2011-04-15
[ [ "Colladay", "Don", "" ] ]
One possible ramification of unified theories of nature such as string theory that may underlie the conventional standard model is the possible spontaneous breakdown of Lorentz and CPT symmetry. In this talk, the formalism for inclusion of such effects into a low-energy effective field theory is presented. An extension...
0705.4117
Juan Antonio Aguilar-Saavedra
F. del Aguila, J. A. Aguilar-Saavedra
Like-sign dilepton signals from a leptophobic Z' boson
19 pages, 11 PS figures. Paper significantly enlarged to include analysis for LHC
JHEP 0711:072,2007
10.1088/1126-6708/2007/11/072
null
hep-ph
null
A new leptophobic neutral gauge boson Z' with small mixing to the Z can have a mass as light as M_Z' ~ 350 GeV, and still have escaped detection at LEP and Tevatron. Such a Z' boson can be derived from E6 and, if the new heavy neutrino singlets in the 27 representation are lighter than M_Z'/2, the process p p(pbar) -...
[ { "created": "Tue, 29 May 2007 18:22:06 GMT", "version": "v1" }, { "created": "Wed, 10 Oct 2007 10:05:38 GMT", "version": "v2" } ]
2009-01-06
[ [ "del Aguila", "F.", "" ], [ "Aguilar-Saavedra", "J. A.", "" ] ]
A new leptophobic neutral gauge boson Z' with small mixing to the Z can have a mass as light as M_Z' ~ 350 GeV, and still have escaped detection at LEP and Tevatron. Such a Z' boson can be derived from E6 and, if the new heavy neutrino singlets in the 27 representation are lighter than M_Z'/2, the process p p(pbar) -> ...
0803.1592
Guidal
M. Guidal
Discussion on the recent proton-DVCS results of Jefferson Lab
proceeding of the Photon2007 conference (International Conference on the Structure and Interactions of the Photon, Paris 9-13 July 2007)
Nucl.Phys.Proc.Suppl.184:234-238,2008
10.1016/j.nuclphysbps.2008.09.171
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present the recent data issued from the Halls A and B of Jefferson Laboratory for the Deep Virtual Compton Scattering Process on the proton. An important set of data for beam spin asymmetries, unpolarized cross sections and differences of polarized cross sections have been obtained. We modestly attempt a first "gl...
[ { "created": "Tue, 11 Mar 2008 14:05:24 GMT", "version": "v1" }, { "created": "Thu, 13 Mar 2008 22:26:13 GMT", "version": "v2" } ]
2008-12-18
[ [ "Guidal", "M.", "" ] ]
We present the recent data issued from the Halls A and B of Jefferson Laboratory for the Deep Virtual Compton Scattering Process on the proton. An important set of data for beam spin asymmetries, unpolarized cross sections and differences of polarized cross sections have been obtained. We modestly attempt a first "glob...
hep-ph/9504419
Valery Nazaruk
V.I.Nazaruk
Neutron-antineutron transitions
8 pages, Text on pg.4 was slightly changed
null
null
INR-995
hep-ph nucl-th
null
We confirm our previous limit on the free-space neutron-antineutron oscillation time t>4.7*10**31 y. The approach is verified by the example of exactly solvable model. We also discuss the all existing remarks. The approach with finite time interval includes potential model as an extremely simplified special case. It ...
[ { "created": "Thu, 27 Apr 1995 19:48:00 GMT", "version": "v1" }, { "created": "Wed, 3 May 1995 19:13:00 GMT", "version": "v2" } ]
2008-02-03
[ [ "Nazaruk", "V. I.", "" ] ]
We confirm our previous limit on the free-space neutron-antineutron oscillation time t>4.7*10**31 y. The approach is verified by the example of exactly solvable model. We also discuss the all existing remarks. The approach with finite time interval includes potential model as an extremely simplified special case. It is...
hep-ph/0510386
J\"org Ruppert
Jorg Ruppert
Jet-medium interactions: wakes in the QCD medium
4 pages, poster proceedings for Quark Matter 2005
ActaPhys.Hung.A27:267-270,2006
10.1556/APH.27.2006.2-3.20
null
hep-ph
null
We calculate the wake induced in a hot, dense QCD medium by a fast parton in the framework of linear response theory. We discuss two different scenarios: (i) a weakly coupled quark gluon plasma (pQGP) described by hard-thermal loop (HTL) perturbation theory and (ii) a scenario where the plasma has the properties of a...
[ { "created": "Fri, 28 Oct 2005 17:55:50 GMT", "version": "v1" } ]
2008-11-26
[ [ "Ruppert", "Jorg", "" ] ]
We calculate the wake induced in a hot, dense QCD medium by a fast parton in the framework of linear response theory. We discuss two different scenarios: (i) a weakly coupled quark gluon plasma (pQGP) described by hard-thermal loop (HTL) perturbation theory and (ii) a scenario where the plasma has the properties of a q...
hep-ph/0412011
Nobuchika Okada
Darwin Chang, Takeshi Fukuyama, Yong-Yeon Keum, Tatsuru Kikuchi, and Nobuchika Okada
Perturbative SO(10) Grand Unification
14 pages, no figure, section5 was slightly modified
Phys.Rev. D71 (2005) 095002
10.1103/PhysRevD.71.095002
KEK-TH-995
hep-ph
null
We consider a phenomenologically viable SO(10) grand unification model of the unification scale $M_G$ around $10^{16} $ GeV which reproduces the MSSM at low energy and allows perturbative calculations up to the Planck scale $M_P$ or the string scale $M_{st}$. Both requirements strongly restrict a choice of Higgs repr...
[ { "created": "Wed, 1 Dec 2004 15:26:39 GMT", "version": "v1" }, { "created": "Thu, 10 Mar 2005 06:06:45 GMT", "version": "v2" } ]
2009-11-10
[ [ "Chang", "Darwin", "" ], [ "Fukuyama", "Takeshi", "" ], [ "Keum", "Yong-Yeon", "" ], [ "Kikuchi", "Tatsuru", "" ], [ "Okada", "Nobuchika", "" ] ]
We consider a phenomenologically viable SO(10) grand unification model of the unification scale $M_G$ around $10^{16} $ GeV which reproduces the MSSM at low energy and allows perturbative calculations up to the Planck scale $M_P$ or the string scale $M_{st}$. Both requirements strongly restrict a choice of Higgs repres...
hep-ph/0102272
Tomoi Koide
T.Koide, M.Maruyama and F.Takagi
Projection Operator Approach to Langevin Equations in $\phi^4$ Theory
35pages,2figures, Prog. Theor. Phys. Vol. 107 No. 5 in press
Prog.Theor.Phys. 107 (2002) 1001-1035
10.1143/PTP.107.1001
null
hep-ph hep-th nucl-th quant-ph
null
We apply the projection operator method (POM) to $\phi^4$ theory and derive both quantum and semiclassical equations of motion for the soft modes. These equations have no time-convolution integral term, in sharp contrast with other well-known results obtained using the influence functional method (IFM) and the closed...
[ { "created": "Thu, 22 Feb 2001 06:14:17 GMT", "version": "v1" }, { "created": "Sat, 27 Apr 2002 12:10:40 GMT", "version": "v2" } ]
2009-11-07
[ [ "Koide", "T.", "" ], [ "Maruyama", "M.", "" ], [ "Takagi", "F.", "" ] ]
We apply the projection operator method (POM) to $\phi^4$ theory and derive both quantum and semiclassical equations of motion for the soft modes. These equations have no time-convolution integral term, in sharp contrast with other well-known results obtained using the influence functional method (IFM) and the closed t...
1401.7243
Monojit Ghosh
Monojit Ghosh, Pomita Ghoshal, Srubabati Goswami, Sushant K. Raut
Evidence for leptonic CP phase from NO$\nu$A, T2K and ICAL: A chronological progression
38 pages, 21 figures, version accepted in Nuclear Physics B
null
10.1016/j.nuclphysb.2014.04.013
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the synergy between the long-baseline (LBL) experiments NO$\nu$A and T2K and the atmospheric neutrino experiment ICAL@INO for obtaining the first hint of CP violation in the lepton sector. We also discuss how precisely the leptonic CP phase ($\delta_{CP}$) can be measured by these experiments. The CP sensiti...
[ { "created": "Tue, 28 Jan 2014 16:11:09 GMT", "version": "v1" }, { "created": "Thu, 17 Apr 2014 13:39:25 GMT", "version": "v2" } ]
2014-06-02
[ [ "Ghosh", "Monojit", "" ], [ "Ghoshal", "Pomita", "" ], [ "Goswami", "Srubabati", "" ], [ "Raut", "Sushant K.", "" ] ]
We study the synergy between the long-baseline (LBL) experiments NO$\nu$A and T2K and the atmospheric neutrino experiment ICAL@INO for obtaining the first hint of CP violation in the lepton sector. We also discuss how precisely the leptonic CP phase ($\delta_{CP}$) can be measured by these experiments. The CP sensitivi...
1002.0473
Xavier Calmet
X. Calmet
Renormalization of Newton's constant and Particle Physics
3 pages, to appear in the proceedings of the 12th Marcel Grossman Meeting
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We report on particle physics applications of the renormalization group equation of Newton's constant.
[ { "created": "Tue, 2 Feb 2010 13:06:51 GMT", "version": "v1" } ]
2010-02-03
[ [ "Calmet", "X.", "" ] ]
We report on particle physics applications of the renormalization group equation of Newton's constant.
hep-ph/0210290
Per Osland
Per Osland (Bergen)
Three-Neutrino MSW Effect and the Lehmann Mass Matrix
6 pages, LaTeX, 1 figure. Invited talk given at the conference "Beyond the Desert 2002", 2-7 June 2002, Oulu, Finland, to be published in the proceedings
null
null
null
hep-ph
null
Recent work on analytical solutions to the MSW equations for three neutrino flavours is reviewed, with emphasis on the exponential density. Application to a particular mass matrix, proposed by Lehmann, Newton and Wu, is also discussed. Within this model, the experimental data allow a determination of the three neutri...
[ { "created": "Tue, 22 Oct 2002 09:07:51 GMT", "version": "v1" } ]
2007-05-23
[ [ "Osland", "Per", "", "Bergen" ] ]
Recent work on analytical solutions to the MSW equations for three neutrino flavours is reviewed, with emphasis on the exponential density. Application to a particular mass matrix, proposed by Lehmann, Newton and Wu, is also discussed. Within this model, the experimental data allow a determination of the three neutrino...
2010.02590
Miguel Vanvlasselaer
Aleksandr Azatov, Miguel Vanvlasselaer
Bubble wall velocity: heavy physics effects
Non-vanishing width of the bubble wall effects are taken into account
null
10.1088/1475-7516/2021/01/058
SISSA 247/2020/FISI
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyse the dynamics of the relativistic bubble expansion during the first order phase transition focusing on the ultra relativistic velocities $\gamma\gg 1$. We show that fields much heavier than the scale of the phase transition can significantly contribute to the friction and modify the motion of the bubble wal...
[ { "created": "Tue, 6 Oct 2020 10:00:44 GMT", "version": "v1" }, { "created": "Wed, 14 Oct 2020 08:58:17 GMT", "version": "v2" }, { "created": "Thu, 26 Nov 2020 12:17:38 GMT", "version": "v3" } ]
2021-02-03
[ [ "Azatov", "Aleksandr", "" ], [ "Vanvlasselaer", "Miguel", "" ] ]
We analyse the dynamics of the relativistic bubble expansion during the first order phase transition focusing on the ultra relativistic velocities $\gamma\gg 1$. We show that fields much heavier than the scale of the phase transition can significantly contribute to the friction and modify the motion of the bubble wall ...
0805.4088
Alexandr Korchin
S. Ivashyn, A. Korchin
Radiative decays with a0(980) and f0(980) from ChPT at order p^4
5 pages, 2 figures; talk presented at Workshop on Scalar Mesons and Related Topics (SCADRON 70), Lisbon, Portugal, 11-16 Feb 2008; to appear in AIP Conf. Proc
AIPConf.Proc.1030:123-127,2008
10.1063/1.2973485
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A consistent description of the pi0 pi0 invariant mass distribution in the phi(1020) -> f0(980) gamma -> pi0 pi0 gamma decay and the pi0 eta in phi(1020) -> a0(980) gamma -> pi0 eta gamma is suggested. A search for the consequences of the flavor SU(3) symmetry for the scalar mesons can be based on such an analysis. I...
[ { "created": "Tue, 27 May 2008 10:08:39 GMT", "version": "v1" } ]
2008-11-26
[ [ "Ivashyn", "S.", "" ], [ "Korchin", "A.", "" ] ]
A consistent description of the pi0 pi0 invariant mass distribution in the phi(1020) -> f0(980) gamma -> pi0 pi0 gamma decay and the pi0 eta in phi(1020) -> a0(980) gamma -> pi0 eta gamma is suggested. A search for the consequences of the flavor SU(3) symmetry for the scalar mesons can be based on such an analysis. In ...
hep-ph/0408206
Tim Stockamp
T. Stockamp (Universitaet Bielefeld)
Classical approximation of the Boltzmann equation in high energy QCD
10 pages, 12 figures
J.Phys. G32 (2006) 39-46
10.1088/0954-3899/32/1/004
null
hep-ph
null
Recently, Mueller and Son discussed the time evolution of a dense system towards equilibrium in a scalar field theory. They show the equivalence of the classical field approximation and the Boltzmann equation in all but linear terms in the occupation number. Here we present the generalization to high energy QCD.
[ { "created": "Wed, 18 Aug 2004 11:07:16 GMT", "version": "v1" } ]
2009-11-10
[ [ "Stockamp", "T.", "", "Universitaet Bielefeld" ] ]
Recently, Mueller and Son discussed the time evolution of a dense system towards equilibrium in a scalar field theory. They show the equivalence of the classical field approximation and the Boltzmann equation in all but linear terms in the occupation number. Here we present the generalization to high energy QCD.
0710.1563
Zsolt Szep
P. Kovacs, Zs. Szep
Influence of the isospin and hypercharge chemical potentials on the location of the CEP in the mu_B-T phase diagram of the SU(3)_L x SU(3)_R chiral quark model
RevTeX4, 13 pages, 6 figures, version accepted for publication in Phys. Rev. D
Phys.Rev.D77:065016,2008
10.1103/PhysRevD.77.065016
null
hep-ph
null
We investigate the influence of the asymmetric quark matter (rho_u\ne rho_d\ne rho_s) on the mass of the quasiparticles and the phase diagram of the chiral quark model parametrized at one-loop level of the renormalized theory, using the optimized perturbation theory for the resummation of the perturbative series. The...
[ { "created": "Mon, 8 Oct 2007 14:42:08 GMT", "version": "v1" }, { "created": "Sun, 3 Feb 2008 22:08:31 GMT", "version": "v2" } ]
2008-11-26
[ [ "Kovacs", "P.", "" ], [ "Szep", "Zs.", "" ] ]
We investigate the influence of the asymmetric quark matter (rho_u\ne rho_d\ne rho_s) on the mass of the quasiparticles and the phase diagram of the chiral quark model parametrized at one-loop level of the renormalized theory, using the optimized perturbation theory for the resummation of the perturbative series. The e...
0711.3424
Claudio Coriano
R. Armillis, C. Coriano and M. Guzzi
Trilinear Anomalous Gauge Interactions from Intersecting Branes and the Neutral Currents Sector
68 pages, 21 figures Revised Version, to appear in JHEP
JHEP0805:015,2008
10.1088/1126-6708/2008/05/015
null
hep-ph
null
We present a study of the trilinear gauge interactions in extensions of the Standard Model (SM) with several anomalous extra U(1)'s, identified in various constructions, from special vacua of string theory to large extra dimensions. In these models an axion and generalized Chern-Simons interactions for anomalies canc...
[ { "created": "Wed, 21 Nov 2007 18:18:51 GMT", "version": "v1" }, { "created": "Thu, 22 Nov 2007 08:42:01 GMT", "version": "v2" }, { "created": "Wed, 19 Mar 2008 15:33:20 GMT", "version": "v3" }, { "created": "Wed, 19 Mar 2008 20:11:44 GMT", "version": "v4" }, { "c...
2008-11-26
[ [ "Armillis", "R.", "" ], [ "Coriano", "C.", "" ], [ "Guzzi", "M.", "" ] ]
We present a study of the trilinear gauge interactions in extensions of the Standard Model (SM) with several anomalous extra U(1)'s, identified in various constructions, from special vacua of string theory to large extra dimensions. In these models an axion and generalized Chern-Simons interactions for anomalies cancel...
0710.1267
Jean-Philippe Lansberg
J.P. Lansberg, B. Pire and L. Szymanowski
Production of a pion in association with a high-Q2 dilepton pair in antiproton-proton annihilation at GSI-FAIR
Latex, 5 pages, 3 figures
Phys.Rev.D76:111502,2007
10.1103/PhysRevD.76.111502
null
hep-ph hep-ex nucl-th
null
We evaluate the cross section for anti-p p -> l+ l- pi0 in the forward direction and for large lepton pair invariant mass. In this kinematical region, the leading-twist amplitude factorises into a short-distance matrix element, long-distance dominated antiproton Distribution Amplitudes and proton to pion Transition D...
[ { "created": "Fri, 5 Oct 2007 16:59:11 GMT", "version": "v1" } ]
2008-11-26
[ [ "Lansberg", "J. P.", "" ], [ "Pire", "B.", "" ], [ "Szymanowski", "L.", "" ] ]
We evaluate the cross section for anti-p p -> l+ l- pi0 in the forward direction and for large lepton pair invariant mass. In this kinematical region, the leading-twist amplitude factorises into a short-distance matrix element, long-distance dominated antiproton Distribution Amplitudes and proton to pion Transition Dis...
hep-ph/0402062
John F. Gunion
M. Battaglia (U.C. Berkeley and LBNL), D. Dominici (CERN and INFN, Florence), J.F. Gunion (U.C. Davis) and J.D. Wells (Michigan)
The Invisible Higgs Decay Width in the Add Model at the LHC
6 pages, 2 figures, To appear in the Proceedings of the Les Houches Workshop 2003: ``Physics at TeV Colliders'', ed. F. Boudjema
null
null
UCD-2004-18
hep-ph
null
Assuming flat universal extra dimensions, we demonstrate that for a light Higgs boson the process $pp\to W^*W^* +X \to Higgs,graviscalars +X \to invisible+X$ will be observable at the $5 \sigma$ level at the LHC for the portion of the Higgs-graviscalar mixing ($\xi$) and effective Planck mass ($M_D$) parameter space ...
[ { "created": "Thu, 5 Feb 2004 23:54:18 GMT", "version": "v1" } ]
2007-05-23
[ [ "Battaglia", "M.", "", "U.C. Berkeley and LBNL" ], [ "Dominici", "D.", "", "CERN and INFN,\n Florence" ], [ "Gunion", "J. F.", "", "U.C. Davis" ], [ "Wells", "J. D.", "", "Michigan" ] ]
Assuming flat universal extra dimensions, we demonstrate that for a light Higgs boson the process $pp\to W^*W^* +X \to Higgs,graviscalars +X \to invisible+X$ will be observable at the $5 \sigma$ level at the LHC for the portion of the Higgs-graviscalar mixing ($\xi$) and effective Planck mass ($M_D$) parameter space wh...
2301.10461
Zhi-zhong Xing
Zhi-zhong Xing
The formal seesaw mechanism of Majorana neutrinos with unbroken gauge symmetry
18 pages. The title changed, more discussions and references added, accepted for publication in NPB
null
10.1016/j.nuclphysb.2023.116106
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We reformulate the canonical seesaw mechanism in the case that the electroweak gauge symmetry is unbroken, and show that it can "formally" work and allow us to derive an exact seesaw formula for the light and heavy Majorana neutrinos. We elucidate the reason why there is a mismatch between the mass eigenstates of hea...
[ { "created": "Wed, 25 Jan 2023 08:42:16 GMT", "version": "v1" }, { "created": "Wed, 1 Feb 2023 09:20:46 GMT", "version": "v2" } ]
2023-02-22
[ [ "Xing", "Zhi-zhong", "" ] ]
We reformulate the canonical seesaw mechanism in the case that the electroweak gauge symmetry is unbroken, and show that it can "formally" work and allow us to derive an exact seesaw formula for the light and heavy Majorana neutrinos. We elucidate the reason why there is a mismatch between the mass eigenstates of heavy...
hep-ph/0209266
Paolo Gondolo
Gintaras Duda (UCLA), Graciela Gelmini (UCLA), Paolo Gondolo (CWRU), Joakim Edsjo (Stockholm), Joseph Silk (Oxford)
Indirect detection of a subdominant density component of cold dark matter
15 pages plus 17 figures
Phys.Rev. D67 (2003) 023505
10.1103/PhysRevD.67.023505
UCLA/02/TEP/22, CWRU-P11-02, NSF-ITP-02-96
hep-ph
null
We examine the detectability through indirect means of weakly interacting dark matter candidates that may constitute not all but only a subdominant component of galactic cold dark matter. We show that the possibility of indirect detection of neutralinos from their annihilations in the Earth and Sun is not severely ha...
[ { "created": "Mon, 23 Sep 2002 19:38:30 GMT", "version": "v1" } ]
2009-11-07
[ [ "Duda", "Gintaras", "", "UCLA" ], [ "Gelmini", "Graciela", "", "UCLA" ], [ "Gondolo", "Paolo", "", "CWRU" ], [ "Edsjo", "Joakim", "", "Stockholm" ], [ "Silk", "Joseph", "", "Oxford" ] ]
We examine the detectability through indirect means of weakly interacting dark matter candidates that may constitute not all but only a subdominant component of galactic cold dark matter. We show that the possibility of indirect detection of neutralinos from their annihilations in the Earth and Sun is not severely hamp...
hep-ph/9509417
Harald Griesshammer
H. W. Grie\{ss}hammer (Uni Erlangen-N"urnberg, Germany)
Large Gauge Transformations and Magnetic Vortices in Axial Gauge QCD_{3+1}
LaTeX, 14 pages, to be published in the proceedings of the "Workshop on Nonperturbative Approaches to QCD" at the ECT, Trento; no special macros
null
null
FAU-TP3-95/9
hep-ph
null
It is shown that in the modified axial gauge version of canonically quantized QCD$_{3+1}$ on a torus only nongeneric gauge field configurations allow for large gauge transformations. For the other configurations, the gauge is fixed completely. Such configurations carry nonzero total magnetic abelian fluxes, correspon...
[ { "created": "Fri, 29 Sep 1995 11:51:51 GMT", "version": "v1" } ]
2007-05-23
[ [ "Grie\\{ss}hammer", "H. W.", "", "Uni Erlangen-N\"urnberg, Germany" ] ]
It is shown that in the modified axial gauge version of canonically quantized QCD$_{3+1}$ on a torus only nongeneric gauge field configurations allow for large gauge transformations. For the other configurations, the gauge is fixed completely. Such configurations carry nonzero total magnetic abelian fluxes, correspond ...
1403.6695
Ivanka Bozovic-Jelisavcic
I. Bozovic-Jelisavcic, S. Lukic, G. Milutinovic-Dumbelovic and M. Pandurovic
SM-like Higgs decay into two muons at 1.4 TeV CLIC
Talk presented at the International Workshop on Future Linear Colliders (LCWS13), Tokyo, Japan, 11-15 November 2013 on behalf of the CLIC Detector and Physics Collaboration
null
null
CLICdp-Draft-2014-005
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The branching fraction measurement of the SM-like Higgs boson decay into two muons at 1.4 TeV CLIC will be described in this paper contributed to the LCWS13. The study is performed in the fully simulated ILD detector concept for CLIC, taking into consideration all the relevant physics and the beam-induced backgrounds...
[ { "created": "Wed, 26 Mar 2014 14:41:45 GMT", "version": "v1" } ]
2014-03-27
[ [ "Bozovic-Jelisavcic", "I.", "" ], [ "Lukic", "S.", "" ], [ "Milutinovic-Dumbelovic", "G.", "" ], [ "Pandurovic", "M.", "" ] ]
The branching fraction measurement of the SM-like Higgs boson decay into two muons at 1.4 TeV CLIC will be described in this paper contributed to the LCWS13. The study is performed in the fully simulated ILD detector concept for CLIC, taking into consideration all the relevant physics and the beam-induced backgrounds, ...
hep-ph/0212115
Haibin Wang
R. Akhoury, H. Wang and O. Yakovlev
On the Resummation of Large QCD Corrections to photon photon to b anti-b
31 pages, 14 figures
Phys.Rev.D68:073006,2003
10.1103/PhysRevD.68.073006
MCTP-02-66
hep-ph
null
We study the resummation of large QCD radiative corrections up to the next to leading logarithmic accuracy to the process photon photon to b anti-b; i.e., we resum logarithms of the type alpha_s^p log^{2p}{m^2/s} and alpha_s^p log^{2p-1}{m^2/s} (m is the quark mass). The only source of all the logarithms to this accu...
[ { "created": "Sun, 8 Dec 2002 15:59:16 GMT", "version": "v1" } ]
2011-01-25
[ [ "Akhoury", "R.", "" ], [ "Wang", "H.", "" ], [ "Yakovlev", "O.", "" ] ]
We study the resummation of large QCD radiative corrections up to the next to leading logarithmic accuracy to the process photon photon to b anti-b; i.e., we resum logarithms of the type alpha_s^p log^{2p}{m^2/s} and alpha_s^p log^{2p-1}{m^2/s} (m is the quark mass). The only source of all the logarithms to this accura...
hep-ph/9604300
Zheng Huang
Zheng Huang (U. of Arizona) and Xin-Nian Wang (LBL)
Dilepton and Photon Productions from a Coherent Pion Oscillation
11 pages in RevTeX with 2 figures (epsfig style) embedded
Phys.Lett. B383 (1996) 457-462
10.1016/0370-2693(96)00814-3
AZPH-TH/96-11, LBL-38582
hep-ph nucl-th
null
Since the electromagnetic current for a pion system coincides with the third component of the isovector current, the isospin angular oscillation of a coherent field can be a significant source for the electromagnetic emissions. We study the characteristic dilepton and photon emissions from the classical pion field os...
[ { "created": "Thu, 11 Apr 1996 21:50:48 GMT", "version": "v1" } ]
2015-06-25
[ [ "Huang", "Zheng", "", "U. of Arizona" ], [ "Wang", "Xin-Nian", "", "LBL" ] ]
Since the electromagnetic current for a pion system coincides with the third component of the isovector current, the isospin angular oscillation of a coherent field can be a significant source for the electromagnetic emissions. We study the characteristic dilepton and photon emissions from the classical pion field osci...
hep-ph/0110376
Chao-Qiang Geng
C.Q. Geng, C.W. Hwang, and C.C. Liu
Study of Rare $B_c^+\to D_{d,s}^{(*) +}l\bar{l}$ Decays
22 pages, 9 Figures, version to appear in PRD
Phys.Rev.D65:094037,2002
10.1103/PhysRevD.65.094037
null
hep-ph
null
We study the rare decays of $B_c^+\to D_{q}^{(*)+}l\bar{l}$ ($q=d,s$ and $l=\nu_l,e,\mu,\tau)$ in the standard model. The form factors are evaluated in the light front and constituent quark models, respectively. We find that the decay branching ratios calculated in the two models for $B_c^+\to D^+_q l\bar{l}$ agree w...
[ { "created": "Mon, 29 Oct 2001 19:18:38 GMT", "version": "v1" }, { "created": "Sun, 31 Mar 2002 10:28:04 GMT", "version": "v2" } ]
2011-03-23
[ [ "Geng", "C. Q.", "" ], [ "Hwang", "C. W.", "" ], [ "Liu", "C. C.", "" ] ]
We study the rare decays of $B_c^+\to D_{q}^{(*)+}l\bar{l}$ ($q=d,s$ and $l=\nu_l,e,\mu,\tau)$ in the standard model. The form factors are evaluated in the light front and constituent quark models, respectively. We find that the decay branching ratios calculated in the two models for $B_c^+\to D^+_q l\bar{l}$ agree wel...
hep-ph/0208090
Stanislaw Tatur
J. Bartelski, S. Tatur
A determination of gluon spin distribution from the deep inelastic scattering data
latex, 8 pages, 2 eps figures. To apear in Acta Physica Polonica. Dedicated to prof. Stefan Pokorski on the occasion of his 60th birthday
Acta Phys.Polon. B33 (2002) 2673-2680
null
null
hep-ph
null
In order to determine polarized parton densities in nucleon we have made fits using all experimental data on spin asymmetries measured in the deep inelastic scattering on different nucleon targets. We have used in our analysis next to leading order QCD corrections in bar{MS} renormalization scheme. The functional for...
[ { "created": "Fri, 9 Aug 2002 12:41:31 GMT", "version": "v1" } ]
2007-05-23
[ [ "Bartelski", "J.", "" ], [ "Tatur", "S.", "" ] ]
In order to determine polarized parton densities in nucleon we have made fits using all experimental data on spin asymmetries measured in the deep inelastic scattering on different nucleon targets. We have used in our analysis next to leading order QCD corrections in bar{MS} renormalization scheme. The functional forms...
2308.16436
Bo-Yan Cui
Bo-Yan Cui, Yue-Long Shen, Chao Wang and Yan-Bing Wei
QCD factorization for the $B\to \gamma\ell\nu_{\ell}$ decay beyond leading power
29 pages, 6 figures
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
The radiative leptonic $B\to \gamma\ell\nu_{\ell}$ decay serves as an ideal platform to determine the $B$-meson inverse moment which is a fundamental nonperturbative parameter for the $B$ meson. In this paper, we explore precise QCD contributions to this decay with an energetic photon. We reproduce the next-to-next-t...
[ { "created": "Thu, 31 Aug 2023 03:52:47 GMT", "version": "v1" } ]
2023-09-01
[ [ "Cui", "Bo-Yan", "" ], [ "Shen", "Yue-Long", "" ], [ "Wang", "Chao", "" ], [ "Wei", "Yan-Bing", "" ] ]
The radiative leptonic $B\to \gamma\ell\nu_{\ell}$ decay serves as an ideal platform to determine the $B$-meson inverse moment which is a fundamental nonperturbative parameter for the $B$ meson. In this paper, we explore precise QCD contributions to this decay with an energetic photon. We reproduce the next-to-next-to-...
1711.05741
Fredrik Bj\"orkeroth
Fredrik Bj\"orkeroth, Eung Jin Chun, Stephen F. King
Accidental Peccei-Quinn Symmetry from Discrete Flavour Symmetry and Pati-Salam
14 pages, 2 figures
null
10.1016/j.physletb.2017.12.058
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show how an accidental $U(1)$ Peccei-Quinn (PQ) symmetry can arise from a discrete $A_4$ family symmetry combined with a discrete flavour symmetry $ \mathbb{Z}_3 \times \mathbb{Z}_5^2 $, in a realistic Pati-Salam unified theory of flavour. Imposing only these discrete flavour symmetries, the axion solution to the ...
[ { "created": "Wed, 15 Nov 2017 19:00:01 GMT", "version": "v1" } ]
2018-02-01
[ [ "Björkeroth", "Fredrik", "" ], [ "Chun", "Eung Jin", "" ], [ "King", "Stephen F.", "" ] ]
We show how an accidental $U(1)$ Peccei-Quinn (PQ) symmetry can arise from a discrete $A_4$ family symmetry combined with a discrete flavour symmetry $ \mathbb{Z}_3 \times \mathbb{Z}_5^2 $, in a realistic Pati-Salam unified theory of flavour. Imposing only these discrete flavour symmetries, the axion solution to the st...
1306.2897
Nils Strodthoff
Nils Strodthoff and Lorenz von Smekal
Polyakov-Quark-Meson-Diquark Model for two-color QCD
8 pages, 9 figures; published version
Physics Letters B 731C (2014), pp. 350-357
10.1016/j.physletb.2014.03.008
null
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present an update on the phase diagram of two-color QCD from a chiral effective model approach based on a quark-meson-diquark model using the Functional Renormalization Group (FRG). We discuss the impact of perturbative UV contributions, the inclusion of gauge field dynamics via a phenomenological Polyakov loop po...
[ { "created": "Wed, 12 Jun 2013 17:01:24 GMT", "version": "v1" }, { "created": "Wed, 26 Mar 2014 12:36:57 GMT", "version": "v2" } ]
2014-03-27
[ [ "Strodthoff", "Nils", "" ], [ "von Smekal", "Lorenz", "" ] ]
We present an update on the phase diagram of two-color QCD from a chiral effective model approach based on a quark-meson-diquark model using the Functional Renormalization Group (FRG). We discuss the impact of perturbative UV contributions, the inclusion of gauge field dynamics via a phenomenological Polyakov loop pote...
1601.00138
Ernest Ma
Ernest Ma (UC Riverside and HKUST/JCIAS)
Soft $A_4 \to Z_3$ Symmetry Breaking and Cobimaximal Neutrino Mixing
8 pages, 4 figures
null
10.1016/j.physletb.2016.02.032
UCRHEP-T562 (Jan 2016)
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
I propose a model of radiative charged-lepton and neutrino masses with $A_4$ symmetry. The soft breaking of $A_4$ to $Z_3$ lepton triality is accomplished by dimension-three terms. The breaking of $Z_3$ by dimension-two terms allow cobimaximal neutrino mixing $(\theta_{13} \neq 0, \theta_{23} = \pi/4, \delta_{CP} = \...
[ { "created": "Sat, 2 Jan 2016 04:46:58 GMT", "version": "v1" } ]
2016-03-23
[ [ "Ma", "Ernest", "", "UC Riverside and HKUST/JCIAS" ] ]
I propose a model of radiative charged-lepton and neutrino masses with $A_4$ symmetry. The soft breaking of $A_4$ to $Z_3$ lepton triality is accomplished by dimension-three terms. The breaking of $Z_3$ by dimension-two terms allow cobimaximal neutrino mixing $(\theta_{13} \neq 0, \theta_{23} = \pi/4, \delta_{CP} = \pm...
1207.5177
Ivan Vitev
Wei Dai, Ivan Vitev, Ben-Wei Zhang
Momentum imbalance of isolated photon-tagged jet production at RHIC and LHC
4 pages, 3 eps figures, 1 table. Version to appear in PRL
Phys. Rev. Lett. 110, 142001 (2013)
10.1103/PhysRevLett.110.142001
null
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In collisions of ultra-relativistic nuclei, photon-tagged jets provide a unique opportunity to compare jet production and modification due to parton shower formation and propagation in strongly-interacting matter at vastly different center-of-mass energies. We present first results for the cross sections of jets tagg...
[ { "created": "Sat, 21 Jul 2012 20:44:42 GMT", "version": "v1" }, { "created": "Thu, 7 Mar 2013 19:53:24 GMT", "version": "v2" } ]
2015-03-20
[ [ "Dai", "Wei", "" ], [ "Vitev", "Ivan", "" ], [ "Zhang", "Ben-Wei", "" ] ]
In collisions of ultra-relativistic nuclei, photon-tagged jets provide a unique opportunity to compare jet production and modification due to parton shower formation and propagation in strongly-interacting matter at vastly different center-of-mass energies. We present first results for the cross sections of jets tagged...
2407.07944
Lucian Harland-Lang
L. A. Harland-Lang, T. Cridge, R.S. Thorne
A Stress Test of Global PDF Fits: Closure Testing the MSHT PDFs and a First Direct Comparison to the Neural Net Approach
95 pages, 44 figures, 7 tables. Version submitted to journal: Section 3.3 rewritten and expanded, Section 8 describing PDF availability added, Appendix A added
null
null
DESY-24-101
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a first global closure test of the fixed parameterisation (MSHT) approach to PDF fitting. We find that the default MSHT20 parameterisation can reproduce the features of the input set in such a closure test to well within the textbook uncertainties. This provides strong evidence that parameterisation inflex...
[ { "created": "Wed, 10 Jul 2024 18:00:02 GMT", "version": "v1" }, { "created": "Fri, 9 Aug 2024 12:31:47 GMT", "version": "v2" } ]
2024-08-12
[ [ "Harland-Lang", "L. A.", "" ], [ "Cridge", "T.", "" ], [ "Thorne", "R. S.", "" ] ]
We present a first global closure test of the fixed parameterisation (MSHT) approach to PDF fitting. We find that the default MSHT20 parameterisation can reproduce the features of the input set in such a closure test to well within the textbook uncertainties. This provides strong evidence that parameterisation inflexib...
0805.0354
Ashutosh Alok
Ashutosh Kumar Alok, Amol Dighe, S. Uma Sankar
Probing extended Higgs sector through rare b --> s mu+ mu- transitions
21 pages, 4 figures
Phys.Rev.D78:034020,2008
10.1103/PhysRevD.78.034020
TIFR/TH/08-15
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the constraints on the contribution of new physics in the form of scalar/pseudoscalar operators to the average forward backward asymmetry <A_{FB}> of muons in B --> K mu+ mu- and the longitudinal polarization asymmetry A_{LP} of muons in B_s --> mu+ mu-. We find that the maximum possible value of <A_{FB}> al...
[ { "created": "Sat, 3 May 2008 10:49:30 GMT", "version": "v1" } ]
2008-11-26
[ [ "Alok", "Ashutosh Kumar", "" ], [ "Dighe", "Amol", "" ], [ "Sankar", "S. Uma", "" ] ]
We study the constraints on the contribution of new physics in the form of scalar/pseudoscalar operators to the average forward backward asymmetry <A_{FB}> of muons in B --> K mu+ mu- and the longitudinal polarization asymmetry A_{LP} of muons in B_s --> mu+ mu-. We find that the maximum possible value of <A_{FB}> allo...
hep-ph/0012266
C. S. Lim
Makoto Kobayashi (KEK) and C.S. Lim (Kobe U.)
Pseudo-Dirac Scenario for Neutrino Oscillations
17 pages, LaTeX file
Phys.Rev. D64 (2001) 013003
10.1103/PhysRevD.64.013003
KEK-TH-733, KOBE-TH-00-10
hep-ph
null
We argue how pseudo-Dirac scenario for neutrinos leads to rich neutrino oscillation phenomena, including oscillation inside each generation. The pseudo-Dirac scenario is generalized by incorporating generation mixings and formulae for the various neutrino oscillations are derived. As the application we compare the fo...
[ { "created": "Wed, 20 Dec 2000 10:03:53 GMT", "version": "v1" } ]
2009-10-31
[ [ "Kobayashi", "Makoto", "", "KEK" ], [ "Lim", "C. S.", "", "Kobe U." ] ]
We argue how pseudo-Dirac scenario for neutrinos leads to rich neutrino oscillation phenomena, including oscillation inside each generation. The pseudo-Dirac scenario is generalized by incorporating generation mixings and formulae for the various neutrino oscillations are derived. As the application we compare the form...
1709.09781
Guanwen Yan
Guanwen Yan
Effect of sterile Neutrinos and Nonstandard Interactions on the Geo-neutrino Flux
5 pages, 4 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the effect of sterile neutrinos and nonstandard neutrino interactions on the flux of active neutrinos from the Earth's crust and mantle taking matter effect into account in both cases. For simple Earth model and using previous emission flux estimates at the source, we find that for reasonable choice of p...
[ { "created": "Thu, 28 Sep 2017 02:05:13 GMT", "version": "v1" }, { "created": "Thu, 18 Jan 2018 04:00:11 GMT", "version": "v2" } ]
2018-01-19
[ [ "Yan", "Guanwen", "" ] ]
We calculate the effect of sterile neutrinos and nonstandard neutrino interactions on the flux of active neutrinos from the Earth's crust and mantle taking matter effect into account in both cases. For simple Earth model and using previous emission flux estimates at the source, we find that for reasonable choice of par...
hep-ph/9701360
Richard Holman
D. Boyanovsky, H.J. de Vega, R. Holman, and S. Prem Kumar
Photoproduction Enhancement from Non Equilibrium Disoriented Chiral Condensates
33 pages, 11 figures, uses revtex and epsfig
Phys.Rev.D56:5233-5250,1997
10.1103/PhysRevD.56.5233
PITT-97-1; CMU-HEP-97-03; DOR-ER/40682-128
hep-ph nucl-th
null
We study photoproduction during the non-equilibrium stages of the formation of chiral condensates within the ``quench'' scenario of the chiral phase transition. The dynamics is modeled with a gauged linear sigma model. A novel quantum kinetic approach to the description of photoproduction far off equilibrium is devel...
[ { "created": "Thu, 23 Jan 1997 22:07:57 GMT", "version": "v1" } ]
2011-04-15
[ [ "Boyanovsky", "D.", "" ], [ "de Vega", "H. J.", "" ], [ "Holman", "R.", "" ], [ "Kumar", "S. Prem", "" ] ]
We study photoproduction during the non-equilibrium stages of the formation of chiral condensates within the ``quench'' scenario of the chiral phase transition. The dynamics is modeled with a gauged linear sigma model. A novel quantum kinetic approach to the description of photoproduction far off equilibrium is develop...