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2302.02905
Amit Tiwari
Qaisar Shafi, Amit Tiwari and Cem Salih Un
Third family quasi-Yukawa unification: Higgsino dark matter, NLSP gluino and all that
The revised draft includes Higgsino dark matter solutions and other improvements. Neutralino mixing and RGE evolutions of Yukawa couplings are corrected
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We explore the implications of third family ($t-b-\tau$) quasi-Yukawa unification (QYU) for collider and dark matter (DM) searches within the framework of a supersymmetric $SU(4)_c \times SU(2)_L \times SU(2)_R$ model. The deviation from exact Yukawa unification is quantified through the relation $y_t : y_b : y_\tau ...
[ { "created": "Mon, 6 Feb 2023 16:21:23 GMT", "version": "v1" }, { "created": "Fri, 17 Mar 2023 00:32:41 GMT", "version": "v2" } ]
2023-03-20
[ [ "Shafi", "Qaisar", "" ], [ "Tiwari", "Amit", "" ], [ "Un", "Cem Salih", "" ] ]
We explore the implications of third family ($t-b-\tau$) quasi-Yukawa unification (QYU) for collider and dark matter (DM) searches within the framework of a supersymmetric $SU(4)_c \times SU(2)_L \times SU(2)_R$ model. The deviation from exact Yukawa unification is quantified through the relation $y_t : y_b : y_\tau = ...
1112.5339
Henrik Melbeus
Mattias Blennow, Henrik Melbeus, Tommy Ohlsson, He Zhang
RG running in a minimal UED model in light of recent LHC Higgs mass bounds
16 pages, 6 figures, RevTeX4. Final version published in Phys. Lett. B
Phys. Lett. B 712 (2012) 419-424
10.1016/j.physletb.2012.05.029
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study how the recent ATLAS and CMS Higgs mass bounds affect the renormalization group running of the physical parameters in universal extra dimensions. Using the running of the Higgs self-coupling constant, we derive bounds on the cutoff scale of the extra-dimensional theory itself. We show that the running of phy...
[ { "created": "Thu, 22 Dec 2011 14:57:22 GMT", "version": "v1" }, { "created": "Tue, 29 May 2012 11:43:55 GMT", "version": "v2" } ]
2015-06-03
[ [ "Blennow", "Mattias", "" ], [ "Melbeus", "Henrik", "" ], [ "Ohlsson", "Tommy", "" ], [ "Zhang", "He", "" ] ]
We study how the recent ATLAS and CMS Higgs mass bounds affect the renormalization group running of the physical parameters in universal extra dimensions. Using the running of the Higgs self-coupling constant, we derive bounds on the cutoff scale of the extra-dimensional theory itself. We show that the running of physi...
0812.2051
Linda Carpenter
Linda M. Carpenter
Surveying the Phenomenology of General Gauge Mediation
21 pages, 3 figures
null
null
SCIPP 08/13
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
I explore the phenomenology, constraints and tuning for several weakly coupled implementations of multi-parameter gauge mediation and compare to minimal gauge mediation. The low energy spectra are distinct from that of minimal gauge mediation, a wide range of NLSPs is found and spectra are significantly compressed th...
[ { "created": "Thu, 11 Dec 2008 11:49:08 GMT", "version": "v1" } ]
2008-12-12
[ [ "Carpenter", "Linda M.", "" ] ]
I explore the phenomenology, constraints and tuning for several weakly coupled implementations of multi-parameter gauge mediation and compare to minimal gauge mediation. The low energy spectra are distinct from that of minimal gauge mediation, a wide range of NLSPs is found and spectra are significantly compressed thus...
hep-ph/0409102
Atsushi Hosaka
A. Hosaka, M. Oka and T. Shinozaki
Decay of Theta+ in a quark model
14 pages, to appear in Phys. Rev. D
Phys.Rev. D71 (2005) 074021
10.1103/PhysRevD.71.074021
RCNP-Th04028
hep-ph
null
We study the decay of Theta+ in a non-relativistic quark model. The wave function of Theta+ is constructed for the two cases JP = 1/2+- as products of color, spin, flavor and orbital parts respecting total antisymmetrization among the four quarks. We find that for the negative parity Theta+ the width becomes very lar...
[ { "created": "Thu, 9 Sep 2004 03:21:54 GMT", "version": "v1" }, { "created": "Sat, 9 Apr 2005 12:32:51 GMT", "version": "v2" } ]
2009-11-10
[ [ "Hosaka", "A.", "" ], [ "Oka", "M.", "" ], [ "Shinozaki", "T.", "" ] ]
We study the decay of Theta+ in a non-relativistic quark model. The wave function of Theta+ is constructed for the two cases JP = 1/2+- as products of color, spin, flavor and orbital parts respecting total antisymmetrization among the four quarks. We find that for the negative parity Theta+ the width becomes very large...
0806.0889
Wei Chao
Wei Chao
The Muon Magnetic Moment in the TeV Scale Seesaw Models
12 pages, 3 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The reported discrepancy of the muon abnormal magnetic moment $a_\mu^{}$ has impacts on the low energy phenomenology. In this paper we calculate the corrections to $a_\mu$ in the standard model extended by the TeV scale seesaw models. We show that the correction induced by the type-I seesaw model is negative and of t...
[ { "created": "Thu, 5 Jun 2008 02:48:28 GMT", "version": "v1" } ]
2008-06-06
[ [ "Chao", "Wei", "" ] ]
The reported discrepancy of the muon abnormal magnetic moment $a_\mu^{}$ has impacts on the low energy phenomenology. In this paper we calculate the corrections to $a_\mu$ in the standard model extended by the TeV scale seesaw models. We show that the correction induced by the type-I seesaw model is negative and of the...
hep-ph/0412054
Keith Olive
Keith A. Olive
Dark Matter Candidates in Supersymmetric Models
22 pages, 23 eps figures, Summary of talk at "Dark 2004", proceedings of 5th International Heidelberg Conference on Dark Matter in Astro and Particle Physics
null
null
UMN-TH-2332/04, FTPI-MINN-04/45
hep-ph
null
The status of the constrained minimal supersymmetric standard model (CMSSM) will be discussed in light of our current understanding of the relic density after WMAP. A global likelihood analysis of the model is performed including data from direct Higgs searches, global fits to electroweak data, b to s gamma, the anom...
[ { "created": "Fri, 3 Dec 2004 18:12:45 GMT", "version": "v1" } ]
2007-05-23
[ [ "Olive", "Keith A.", "" ] ]
The status of the constrained minimal supersymmetric standard model (CMSSM) will be discussed in light of our current understanding of the relic density after WMAP. A global likelihood analysis of the model is performed including data from direct Higgs searches, global fits to electroweak data, b to s gamma, the anomal...
hep-ph/9208229
Ernest Ma
T. V. Duong and Ernest Ma
Decay of the Z Boson into Scalar Particles
11 pages (2 figures, not included) (Revised, Oct 1992). Some equations have been corrected and 1 figure has been eliminated
Phys.Rev. D47 (1993) 2020-2024
10.1103/PhysRevD.47.2020
UCRHEP-T96
hep-ph
null
In extensions of the standard model, light scalar particles are often possible because of symmetry considerations. We study the decay of the Z boson into such particles. In particular, we consider for illustration the scalar sector of a recently proposed model of the 17-keV neutrino which satisfies all laboratory, as...
[ { "created": "Mon, 17 Aug 1992 18:50:46 GMT", "version": "v1" }, { "created": "Thu, 8 Oct 1992 15:53:37 GMT", "version": "v2" } ]
2009-10-22
[ [ "Duong", "T. V.", "" ], [ "Ma", "Ernest", "" ] ]
In extensions of the standard model, light scalar particles are often possible because of symmetry considerations. We study the decay of the Z boson into such particles. In particular, we consider for illustration the scalar sector of a recently proposed model of the 17-keV neutrino which satisfies all laboratory, astr...
hep-ph/0506198
Bibhuti Bhusan Deo
B. B. Deo, P. K. Mishra
Calculation of the Masses and the Running Masses of the Quarks and Leptons from Electroweak to Supersymmetric Grand Unification Mass
18 pages, 5 figures
null
null
null
hep-ph
null
We make a systematic theoretical analysis of the masses and their variation with energy by solving the renormalization group equation (RGE) in the Minimal Supersymmetric Standard Model (MSSM). The unification fermion masses of around 115 GeV at GeV scale has been derived by Deo and Maharana. Here we undertake the unf...
[ { "created": "Mon, 20 Jun 2005 20:11:04 GMT", "version": "v1" }, { "created": "Sun, 26 Jun 2005 06:57:11 GMT", "version": "v2" }, { "created": "Mon, 8 Aug 2005 08:40:53 GMT", "version": "v3" }, { "created": "Thu, 19 Jan 2006 07:05:33 GMT", "version": "v4" } ]
2007-05-23
[ [ "Deo", "B. B.", "" ], [ "Mishra", "P. K.", "" ] ]
We make a systematic theoretical analysis of the masses and their variation with energy by solving the renormalization group equation (RGE) in the Minimal Supersymmetric Standard Model (MSSM). The unification fermion masses of around 115 GeV at GeV scale has been derived by Deo and Maharana. Here we undertake the unfin...
hep-ph/0508207
Jitesh Bhatt
Jitesh Bhatt and Raghavan Rangarajan
Thermalisation in Thick Wall Electroweak Baryogenesis
Final version published Physical Review D75, 087305, 2007 Significant changes from the previous version. (4pages no figures)
Phys.Rev.D75:087305,2007
10.1103/PhysRevD.75.087305
null
hep-ph
null
In models of thick wall electroweak baryogenesis a common assumption is that the plasma interacting with the expanding Higgs bubble wall during the electroweak phase transition is in kinetic equilibrium (or close to it). We point out that, in addition to the requirement of low wall velocity, kinetic equilibrium requi...
[ { "created": "Fri, 19 Aug 2005 06:29:15 GMT", "version": "v1" }, { "created": "Mon, 4 Jun 2007 11:01:40 GMT", "version": "v2" } ]
2008-11-26
[ [ "Bhatt", "Jitesh", "" ], [ "Rangarajan", "Raghavan", "" ] ]
In models of thick wall electroweak baryogenesis a common assumption is that the plasma interacting with the expanding Higgs bubble wall during the electroweak phase transition is in kinetic equilibrium (or close to it). We point out that, in addition to the requirement of low wall velocity, kinetic equilibrium require...
1407.8332
Marek Tasevsky
Marek Tasevsky
Review of Central Exclusive Production of the Higgs Boson Beyond the Standard Model
19 pages, 3 figures; to appear as review article in Int J Mod Phys A
null
10.1142/S0217751X14460129
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We review activities in the field of theoretical, phenomenological and experimental studies related to the production of the Higgs boson in central exclusive processes at LHC in models beyond Standard Model. Prospects in the context of the Higgs boson discovery at LHC in 2012 and of proposals to build forward proton ...
[ { "created": "Thu, 31 Jul 2014 09:49:00 GMT", "version": "v1" } ]
2015-06-22
[ [ "Tasevsky", "Marek", "" ] ]
We review activities in the field of theoretical, phenomenological and experimental studies related to the production of the Higgs boson in central exclusive processes at LHC in models beyond Standard Model. Prospects in the context of the Higgs boson discovery at LHC in 2012 and of proposals to build forward proton de...
hep-ph/9808399
Zhen Cao
Zhen Cao and Rudolph C. Hwa
A Color Mutation Model of Soft Interaction in High Energy Hadronic Collisions
24 pages including 11 figures in revtex epsf style
Phys.Rev. D59 (1999) 114023
10.1103/PhysRevD.59.114023
OITS-645
hep-ph nucl-th
null
A comprehensive model, called ECOMB, is proposed to describe multiparticle production by soft interaction. It incorporates the eikonal formalism, parton model, color mutation, branching and recombination. The physics is conceptually opposite to the dynamics that underlies the fragmentation of a string. The partons ar...
[ { "created": "Mon, 24 Aug 1998 16:50:12 GMT", "version": "v1" } ]
2009-10-31
[ [ "Cao", "Zhen", "" ], [ "Hwa", "Rudolph C.", "" ] ]
A comprehensive model, called ECOMB, is proposed to describe multiparticle production by soft interaction. It incorporates the eikonal formalism, parton model, color mutation, branching and recombination. The physics is conceptually opposite to the dynamics that underlies the fragmentation of a string. The partons are ...
hep-ph/9703271
Leonid Burakovsky
L. Burakovsky and T. Goldman
Towards resolution of the enigmas of P-wave meson spectroscopy
22 pages, LaTeX
Phys.Rev.D57:2879-2888,1998
10.1103/PhysRevD.57.2879
LA-UR-97-717
hep-ph
null
The mass spectrum of P-wave mesons is considered in a nonrelativistic constituent quark model. The results show the common mass degeneracy of the isovector and isodoublet states of the scalar and tensor meson nonets, and do not exclude the possibility of a similar degeneracy of the same states of the axial-vector and...
[ { "created": "Sat, 8 Mar 1997 00:03:23 GMT", "version": "v1" }, { "created": "Wed, 7 May 1997 18:51:58 GMT", "version": "v2" } ]
2008-11-26
[ [ "Burakovsky", "L.", "" ], [ "Goldman", "T.", "" ] ]
The mass spectrum of P-wave mesons is considered in a nonrelativistic constituent quark model. The results show the common mass degeneracy of the isovector and isodoublet states of the scalar and tensor meson nonets, and do not exclude the possibility of a similar degeneracy of the same states of the axial-vector and p...
hep-ph/9606250
Ephraim Fischbach
Ephraim Fischbach
A Lower Bound on Neutrino Mass
4 pages; Moriond Proceedings
null
null
null
hep-ph
null
The exchange of massless neutrinos between heavy fermions (e.g. $e,p,n$) gives rise to a long-range 2-body force. It is shown that the analogous many-body force can lead to an unphysically large energy density in white dwarfs and neutron stars. To reduce the energy density to a physically acceptable value, the neutri...
[ { "created": "Wed, 5 Jun 1996 19:20:53 GMT", "version": "v1" } ]
2007-05-23
[ [ "Fischbach", "Ephraim", "" ] ]
The exchange of massless neutrinos between heavy fermions (e.g. $e,p,n$) gives rise to a long-range 2-body force. It is shown that the analogous many-body force can lead to an unphysically large energy density in white dwarfs and neutron stars. To reduce the energy density to a physically acceptable value, the neutrino...
hep-ph/9910218
Silvano Simula
F. Cardarelli and S. Simula
Analysis of the exclusive semileptonic decay Lambda_b -> Lambda_c + l nu_l within a light-front constituent quark model
in Proceedings of the International Conference PANIC '99, Uppsala (Sweden), June 1999
Nucl.Phys. A663 (2000) 931-934
10.1016/S0375-9474(99)00800-3
preprint RM3-TH/99-10
hep-ph
null
The exclusive semileptonic decay Lambda_b -> Lambda_c + l nu_l is investigated including both radiative and first-order power corrections in the inverse heavy-quark mass, while the Isgur-Wise function is calculated within a light-front constituent quark model. It turns out that the dependence on the model parameters ...
[ { "created": "Mon, 4 Oct 1999 10:36:04 GMT", "version": "v1" } ]
2009-10-31
[ [ "Cardarelli", "F.", "" ], [ "Simula", "S.", "" ] ]
The exclusive semileptonic decay Lambda_b -> Lambda_c + l nu_l is investigated including both radiative and first-order power corrections in the inverse heavy-quark mass, while the Isgur-Wise function is calculated within a light-front constituent quark model. It turns out that the dependence on the model parameters ca...
2109.10414
Anja Butter
Anja Butter, Tilman Plehn, Nathalie Soybelman, and Johann Brehmer
Back to the Formula -- LHC Edition
null
SciPost Phys. 16, 037 (2024)
10.21468/SciPostPhys.16.1.037
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
While neural networks offer an attractive way to numerically encode functions, actual formulas remain the language of theoretical particle physics. We show how symbolic regression trained on matrix-element information provides, for instance, optimal LHC observables in an easily interpretable form. We introduce the me...
[ { "created": "Tue, 21 Sep 2021 19:38:27 GMT", "version": "v1" }, { "created": "Mon, 15 Nov 2021 08:58:45 GMT", "version": "v2" }, { "created": "Tue, 31 Jan 2023 09:14:32 GMT", "version": "v3" } ]
2024-01-31
[ [ "Butter", "Anja", "" ], [ "Plehn", "Tilman", "" ], [ "Soybelman", "Nathalie", "" ], [ "Brehmer", "Johann", "" ] ]
While neural networks offer an attractive way to numerically encode functions, actual formulas remain the language of theoretical particle physics. We show how symbolic regression trained on matrix-element information provides, for instance, optimal LHC observables in an easily interpretable form. We introduce the meth...
hep-ph/9906233
null
Howard Baer, Manuel Drees, Frank Paige, Pamela Quintana and Xerxes Tata
Trilepton Signal for Supersymmetry at the Fermilab Tevatron Revisited
final version to coincide with published manuscript
Phys.Rev. D61 (2000) 095007
10.1103/PhysRevD.61.095007
FSU-HEP-990509, IFT-P.041/99, BNL-HET-99/12, UH-511-933-99
hep-ph
null
Within a wide class of models, the LEP2 lower limit of 95 GeV on the chargino mass implies gluinos are heavier than $\sim$300 GeV. In this case electroweak $\tw_1\twb_1$ and $\tw_1\tz_2$ production are the dominant SUSY processes at the Tevatron, and the extensively examined isolated trilepton signal from $\tw_1\tz_2...
[ { "created": "Thu, 3 Jun 1999 14:15:49 GMT", "version": "v1" }, { "created": "Thu, 8 Jul 1999 19:30:29 GMT", "version": "v2" }, { "created": "Thu, 6 Apr 2000 21:01:02 GMT", "version": "v3" } ]
2016-09-06
[ [ "Baer", "Howard", "" ], [ "Drees", "Manuel", "" ], [ "Paige", "Frank", "" ], [ "Quintana", "Pamela", "" ], [ "Tata", "Xerxes", "" ] ]
Within a wide class of models, the LEP2 lower limit of 95 GeV on the chargino mass implies gluinos are heavier than $\sim$300 GeV. In this case electroweak $\tw_1\twb_1$ and $\tw_1\tz_2$ production are the dominant SUSY processes at the Tevatron, and the extensively examined isolated trilepton signal from $\tw_1\tz_2$ ...
hep-ph/9702379
Wally Melnitchouk
Xiangdong Ji, W. Melnitchouk (U. Maryland) and X. Song (U. Virginia)
A Study of Off-Forward Parton Distributions
29 pages revtex, 12 postscript figures, minor corrections, references updated
Phys.Rev. D56 (1997) 5511-5523
10.1103/PhysRevD.56.5511
UMD PP 97-085, INPP-UVA-97-01
hep-ph nucl-th
null
An extensive theoretical analysis of off-forward parton distributions (OFPDs) is presented. The OFPDs and the form factors of the quark energy-momentum tensor are estimated at a low-energy scale using a bag model. Relations among the second moments of OFPDs, the form factors, and the fraction of the nucleon spin carr...
[ { "created": "Fri, 21 Feb 1997 00:53:49 GMT", "version": "v1" }, { "created": "Thu, 27 Feb 1997 22:07:13 GMT", "version": "v2" } ]
2009-10-30
[ [ "Ji", "Xiangdong", "", "U. Maryland" ], [ "Melnitchouk", "W.", "", "U. Maryland" ], [ "Song", "X.", "", "U. Virginia" ] ]
An extensive theoretical analysis of off-forward parton distributions (OFPDs) is presented. The OFPDs and the form factors of the quark energy-momentum tensor are estimated at a low-energy scale using a bag model. Relations among the second moments of OFPDs, the form factors, and the fraction of the nucleon spin carrie...
hep-ph/0412424
James Wells
Stephen P. Martin, Kazuhiro Tobe, James D. Wells
Virtual effects of light gauginos and higgsinos: a precision electroweak analysis of split supersymmetry
22 pages, 5 figures, v2: typos fixed and note added
Phys.Rev. D71 (2005) 073014
10.1103/PhysRevD.71.073014
null
hep-ph
null
We compute corrections to precision electroweak observables in supersymmetry in the limit that scalar superpartners are very massive and decoupled. This leaves charginos and neutralinos and a Standard Model-like Higgs boson as the only states with unknown mass substantially affecting the analysis. We give complete fo...
[ { "created": "Thu, 30 Dec 2004 19:55:03 GMT", "version": "v1" }, { "created": "Wed, 20 Apr 2005 18:28:28 GMT", "version": "v2" } ]
2009-11-10
[ [ "Martin", "Stephen P.", "" ], [ "Tobe", "Kazuhiro", "" ], [ "Wells", "James D.", "" ] ]
We compute corrections to precision electroweak observables in supersymmetry in the limit that scalar superpartners are very massive and decoupled. This leaves charginos and neutralinos and a Standard Model-like Higgs boson as the only states with unknown mass substantially affecting the analysis. We give complete form...
hep-ph/9712298
Martin Beneke
M. Beneke (CERN)
Quarkonium polarization as a test of non-relativistic effective theory
6 pages, LaTeX, 3 figures included via epsf.sty, uses sprocl.sty (provided)
null
null
CERN-TH/97-355
hep-ph
null
I compare current approaches to quarkonium production with regard to what they tell us about quarkonium polarization. Predictions for $J/\psi$ polarization in hadron-hadron and photon-hadron collisions are summarized.
[ { "created": "Mon, 8 Dec 1997 15:00:31 GMT", "version": "v1" } ]
2007-05-23
[ [ "Beneke", "M.", "", "CERN" ] ]
I compare current approaches to quarkonium production with regard to what they tell us about quarkonium polarization. Predictions for $J/\psi$ polarization in hadron-hadron and photon-hadron collisions are summarized.
2112.09867
Samadrita Mukherjee
Md. Isha Ali, Manimala Chakraborti, Utpal Chattopadhyay, Samadrita Mukherjee
Muon and Electron $(g-2)$ Anomalies with Non-Holomorphic Interactions in MSSM
Some changes in the texts and in a few figures, results and conclusion unchanged, accepted in EPJC
The European Physical Journal C volume 83, Article number: 60 (2023)
10.1140/epjc/s10052-023-11216-4
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
The recent Fermilab muon $g-2$ result and the same for electron due to fine-structure constant measurement through ${}^{133}{\rm Cs}$ matter-wave interferometry are probed in relation to MSSM with non-holomorphic (NH) trilinear soft SUSY breaking terms, referred as NHSSM. Supersymmetric contributions to charged lepto...
[ { "created": "Sat, 18 Dec 2021 07:44:43 GMT", "version": "v1" }, { "created": "Fri, 24 Jun 2022 15:04:06 GMT", "version": "v2" }, { "created": "Tue, 24 Jan 2023 06:10:00 GMT", "version": "v3" } ]
2023-01-25
[ [ "Ali", "Md. Isha", "" ], [ "Chakraborti", "Manimala", "" ], [ "Chattopadhyay", "Utpal", "" ], [ "Mukherjee", "Samadrita", "" ] ]
The recent Fermilab muon $g-2$ result and the same for electron due to fine-structure constant measurement through ${}^{133}{\rm Cs}$ matter-wave interferometry are probed in relation to MSSM with non-holomorphic (NH) trilinear soft SUSY breaking terms, referred as NHSSM. Supersymmetric contributions to charged lepton ...
hep-ph/0605246
Fran\c{c}ois Gelis
Francois Gelis, Raju Venugopalan
Particle production in field theories coupled to strong external sources. II: Generating functions
24 pages, 6 figures, version to appear in NPA
Nucl.Phys. A779 (2006) 177-196
10.1016/j.nuclphysa.2006.08.015
null
hep-ph hep-th nucl-ex nucl-th
null
We discuss a method for computing the generating function for the multiplicity distribution in field theories with strong time dependent external sources. At leading order, the computation of the generating function reduces to finding a pair of solutions of the classical equations of motion, with non-standard tempora...
[ { "created": "Tue, 23 May 2006 14:43:19 GMT", "version": "v1" }, { "created": "Mon, 2 Oct 2006 08:42:19 GMT", "version": "v2" } ]
2009-11-11
[ [ "Gelis", "Francois", "" ], [ "Venugopalan", "Raju", "" ] ]
We discuss a method for computing the generating function for the multiplicity distribution in field theories with strong time dependent external sources. At leading order, the computation of the generating function reduces to finding a pair of solutions of the classical equations of motion, with non-standard temporal ...
hep-ph/0105104
Kristof Redlich
Krzysztof Redlich
Strangeness production in heavy ion collisions
10 pages, 14 figures, Plenary talk given at 15th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (QM2001), Stony Brook, New York, 15-20 Jan 2001
Nucl.Phys. A698 (2002) 94-103
10.1016/S0375-9474(01)01352-5
GSI-Preprint-2001-14
hep-ph
null
Strangeness production in heavy ion collisions is discussed in a broad energy range from SIS to RHIC. %We emphasize that in the In the whole energy range particle yields are showing high level of chemical equilibration which can be described by the unified freezeout conditions of fixed energy/particle $\simeq 1$GeV. ...
[ { "created": "Fri, 11 May 2001 18:11:08 GMT", "version": "v1" } ]
2009-11-07
[ [ "Redlich", "Krzysztof", "" ] ]
Strangeness production in heavy ion collisions is discussed in a broad energy range from SIS to RHIC. %We emphasize that in the In the whole energy range particle yields are showing high level of chemical equilibration which can be described by the unified freezeout conditions of fixed energy/particle $\simeq 1$GeV. Th...
0809.4835
Zhang He
Tommy Ohlsson and He Zhang
Non-Standard Interaction Effects at Reactor Neutrino Experiments
17 pages, 5 figures, version to appear in PLB
Phys.Lett.B671:99-104,2009
10.1016/j.physletb.2008.12.005
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study non-standard interactions (NSIs) at reactor neutrino experiments, and in particular, the mimicking effects on \theta_13. We present generic formulas for oscillation probabilities including NSIs from sources and detectors. Instructive mappings between the fundamental leptonic mixing parameters and the effecti...
[ { "created": "Sun, 28 Sep 2008 10:46:47 GMT", "version": "v1" }, { "created": "Wed, 10 Dec 2008 09:17:48 GMT", "version": "v2" } ]
2009-01-16
[ [ "Ohlsson", "Tommy", "" ], [ "Zhang", "He", "" ] ]
We study non-standard interactions (NSIs) at reactor neutrino experiments, and in particular, the mimicking effects on \theta_13. We present generic formulas for oscillation probabilities including NSIs from sources and detectors. Instructive mappings between the fundamental leptonic mixing parameters and the effective...
hep-ph/0306304
Thomas Kernreiter
A. Bartl, H. Fraas, T. Kernreiter, O. Kittel
T-odd Correlations in the Decay of Scalar Fermions
18 pages, 5 figures, 2 tables; comments and references added; two tables added; version to appear in Eur. Phys. J
Eur.Phys.J. C33 (2004) 433-442
10.1140/epjc/s2003-01521-9
null
hep-ph
null
We define a CP sensitive asymmetry in the sfermion decays $\ti f \to f \ti\chi^0_j \ell \bar \ell, f \ti\chi^0_j q \bar q$, based on triple product correlations between the momenta of the outgoing fermions. We study this asymmetry in the MSSM with complex parameters. We show that the asymmetry is sensitive to the pha...
[ { "created": "Mon, 30 Jun 2003 15:17:12 GMT", "version": "v1" }, { "created": "Fri, 21 Nov 2003 14:07:14 GMT", "version": "v2" } ]
2009-11-10
[ [ "Bartl", "A.", "" ], [ "Fraas", "H.", "" ], [ "Kernreiter", "T.", "" ], [ "Kittel", "O.", "" ] ]
We define a CP sensitive asymmetry in the sfermion decays $\ti f \to f \ti\chi^0_j \ell \bar \ell, f \ti\chi^0_j q \bar q$, based on triple product correlations between the momenta of the outgoing fermions. We study this asymmetry in the MSSM with complex parameters. We show that the asymmetry is sensitive to the phase...
hep-ph/0609180
Ayres Freitas
A. Freitas, P. Z. Skands
Testing the SUSY-QCD Yukawa coupling in a combined LHC/ILC analysis
5pp, slightly expanded version of contributions to the Proc. of the Linear Collider Workshop (LCWS 06), Bangalore, India, 9-13 March 2006, and the Proc. of the 14th International Conference on Supersymmetry and the Unification of Fundamental Interactions (SUSY 06), Irvine, California, USA, 12-17 June 2006
Pramana 69:843-848,2007
10.1007/s12043-007-0193-3
FERMILAB-CONF-06-322-T
hep-ph
null
In order to establish supersymmetry (SUSY) at future colliders, the identity of gauge couplings and the corresponding Yukawa couplings between gauginos, sfermions and fermions needs to be verified. Here a first phenomenological study for determining the Yukawa coupling of the SUSY-QCD sector is presented, using a met...
[ { "created": "Tue, 19 Sep 2006 13:22:59 GMT", "version": "v1" } ]
2009-12-15
[ [ "Freitas", "A.", "" ], [ "Skands", "P. Z.", "" ] ]
In order to establish supersymmetry (SUSY) at future colliders, the identity of gauge couplings and the corresponding Yukawa couplings between gauginos, sfermions and fermions needs to be verified. Here a first phenomenological study for determining the Yukawa coupling of the SUSY-QCD sector is presented, using a metho...
2301.11484
Fabian Rennecke
Fabian Rennecke, Robert D. Pisarski and Dirk H. Rischke
Particle Interferometry in a Moat Regime
14 pages, 8 figures
null
10.1103/PhysRevD.107.116011
null
hep-ph nucl-ex nucl-th
http://creativecommons.org/licenses/by/4.0/
Dense strongly interacting matter can exhibit regimes with spatial modulations, akin to crystalline phases. In this case particles can have a moat spectrum with minimal energy at nonzero momentum. We show that particle interferometry is a sensitive probe of such a regime in heavy-ion collisions. To this end, we devel...
[ { "created": "Fri, 27 Jan 2023 01:26:45 GMT", "version": "v1" } ]
2023-06-21
[ [ "Rennecke", "Fabian", "" ], [ "Pisarski", "Robert D.", "" ], [ "Rischke", "Dirk H.", "" ] ]
Dense strongly interacting matter can exhibit regimes with spatial modulations, akin to crystalline phases. In this case particles can have a moat spectrum with minimal energy at nonzero momentum. We show that particle interferometry is a sensitive probe of such a regime in heavy-ion collisions. To this end, we develop...
0809.0710
Howard Baer
Howard Baer, Sabine Kraml, Sezen Sekmen, Heaya Summy
Prospects for Yukawa Unified SO(10) SUSY GUTs at the CERN LHC
25 pages including 18 EPS figures
JHEP 0810:079,2008
10.1088/1126-6708/2008/10/079
FSU-HEP-080822, LPSC 08-133
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The requirement of t-b-\tau Yukawa coupling unification is common in simple grand unified models based on the gauge group SO(10), and it also places a severe constraint on the expected spectrum of superpartners. For Yukawa-unified models with \mu >0, the spectrum is characterized by three mass scales: {\it i}). first...
[ { "created": "Wed, 3 Sep 2008 21:13:29 GMT", "version": "v1" } ]
2009-05-08
[ [ "Baer", "Howard", "" ], [ "Kraml", "Sabine", "" ], [ "Sekmen", "Sezen", "" ], [ "Summy", "Heaya", "" ] ]
The requirement of t-b-\tau Yukawa coupling unification is common in simple grand unified models based on the gauge group SO(10), and it also places a severe constraint on the expected spectrum of superpartners. For Yukawa-unified models with \mu >0, the spectrum is characterized by three mass scales: {\it i}). first a...
1201.2085
Ernst Trojan
Ernst Trojan
Superluminal self-interacting neutrino
13 pages, no figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The effect of nonlinear self-interaction can be associated with superluminal velocity of neutrino. The power energy spectrum E=p+Cp^a is derived from the nonlinear Dirac equation when interaction term V=\lambda (\psi \gamma_\mu \psi \psi \gamma^\mu \psi)^a is added to the Lagrangian of a free spin-1/2 particle. The s...
[ { "created": "Mon, 9 Jan 2012 16:24:44 GMT", "version": "v1" } ]
2012-01-11
[ [ "Trojan", "Ernst", "" ] ]
The effect of nonlinear self-interaction can be associated with superluminal velocity of neutrino. The power energy spectrum E=p+Cp^a is derived from the nonlinear Dirac equation when interaction term V=\lambda (\psi \gamma_\mu \psi \psi \gamma^\mu \psi)^a is added to the Lagrangian of a free spin-1/2 particle. The sup...
1111.6576
Christian Spethmann
Christian Spethmann
Constraints on W Prime Models for the ttbar Asymmetry
Talk given at the SUSY 2011 conference. 5 pages, 3 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss if the Tevatron ttbar asymmetry can be explained by T-channel exchange of a W' gauge boson coupling to down and top quarks. In a spontaneously broken gauge theory, such a W' is necessarily accompanied by a Z' at a similar mass scale. Null results from Tevatron searches for dijet and dilepton resonances imp...
[ { "created": "Mon, 28 Nov 2011 20:44:10 GMT", "version": "v1" } ]
2011-11-29
[ [ "Spethmann", "Christian", "" ] ]
We discuss if the Tevatron ttbar asymmetry can be explained by T-channel exchange of a W' gauge boson coupling to down and top quarks. In a spontaneously broken gauge theory, such a W' is necessarily accompanied by a Z' at a similar mass scale. Null results from Tevatron searches for dijet and dilepton resonances imply...
1501.04103
Mao Zeng
S. Dawson, I. M. Lewis, Mao Zeng
Usefulness of effective field theory for boosted Higgs production
21 pages, 13 figures. Minor changes made in version 2
Phys. Rev. D 91, 074012 (2015)
10.1103/PhysRevD.91.074012
SLAC-PUB-16208
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Higgs + jet channel at the LHC is sensitive to the effects of new physics both in the total rate and in the transverse momentum distribution at high p_T. We examine the production process using an effective field theory (EFT) language and discuss the possibility of determining the nature of the underlying high sc...
[ { "created": "Fri, 16 Jan 2015 21:00:04 GMT", "version": "v1" }, { "created": "Wed, 22 Apr 2015 17:14:02 GMT", "version": "v2" } ]
2015-04-24
[ [ "Dawson", "S.", "" ], [ "Lewis", "I. M.", "" ], [ "Zeng", "Mao", "" ] ]
The Higgs + jet channel at the LHC is sensitive to the effects of new physics both in the total rate and in the transverse momentum distribution at high p_T. We examine the production process using an effective field theory (EFT) language and discuss the possibility of determining the nature of the underlying high scal...
0709.2438
Gino Isidori
Gino Isidori
KAON 2007: Conference Summary
16 pages, 10 figures, to appear in the proceedings of the International Conference Kaon'07, Laboratori Nazionali di Frascati, Italy, 21-25 May 2007
PoSKAON:064,2008
null
null
hep-ph
null
A concise overview of the interesting recent developments in kaon phyiscs discussed at KAON 2007 is presented.
[ { "created": "Sat, 15 Sep 2007 18:03:27 GMT", "version": "v1" } ]
2008-11-26
[ [ "Isidori", "Gino", "" ] ]
A concise overview of the interesting recent developments in kaon phyiscs discussed at KAON 2007 is presented.
1112.5158
Torsten Bringmann
Masaki Asano, Torsten Bringmann, Christoph Weniger
Indirect dark matter searches as a probe of degenerate particle spectra
6 pages, 4 figures; minor updates to match the published version
Physics Letters B 709 (2012), pp. 128-132
10.1016/j.physletb.2012.02.017
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the possibility that the cosmological dark matter consists of particles very close in mass to new colored particles below the TeV scale. While such a scenario is inherently difficult to directly confirm at colliders, we find that indirect dark matter searches may be a powerful alternative. In particular, ...
[ { "created": "Wed, 21 Dec 2011 20:59:24 GMT", "version": "v1" }, { "created": "Fri, 2 Mar 2012 09:21:23 GMT", "version": "v2" } ]
2012-03-05
[ [ "Asano", "Masaki", "" ], [ "Bringmann", "Torsten", "" ], [ "Weniger", "Christoph", "" ] ]
We consider the possibility that the cosmological dark matter consists of particles very close in mass to new colored particles below the TeV scale. While such a scenario is inherently difficult to directly confirm at colliders, we find that indirect dark matter searches may be a powerful alternative. In particular, we...
hep-ph/0008223
Maxim Pospelov
Alon E. Faraggi and Maxim Pospelov
Self-Interacting Dark Matter from the Hidden Heterotic-String Sector
16 pages. standard LaTex
Astropart.Phys.16:451-461,2002
10.1016/S0927-6505(01)00121-9
OUTP-00-37P, UMN-TH-1918-00, TPI-MINN-00/42
hep-ph astro-ph hep-th
null
It has been suggested recently that self-interacting dark matter fits better the observational characteristics of galaxy dynamics. We propose that the self-interacting dark matter is composed from the glueballs of the hidden sector non-Abelian gauge group, while the hidden matter states exist in vector-like represent...
[ { "created": "Mon, 21 Aug 2000 23:27:02 GMT", "version": "v1" } ]
2011-05-23
[ [ "Faraggi", "Alon E.", "" ], [ "Pospelov", "Maxim", "" ] ]
It has been suggested recently that self-interacting dark matter fits better the observational characteristics of galaxy dynamics. We propose that the self-interacting dark matter is composed from the glueballs of the hidden sector non-Abelian gauge group, while the hidden matter states exist in vector-like representat...
hep-ph/0212153
Alexey Kiselev
N.N. Achasov and A.V. Kiselev
The new analysis of the KLOE data on the phi->eta pi0 gamma decay
11 pages, 2 figures
Phys.Rev.D68:014006,2003
10.1103/PhysRevD.68.014006
null
hep-ph hep-ex nucl-th
null
In this paper we present the fit to the recent high-statistical KLOE data on the phi -> eta pi^0 gamma decay. This decay mainly goes through the a_0 gamma intermediate state. The obtained results differ from those of the previous fits: data prefer a high a_0 mass and a considerably large a_0 coupling to the K\bar K}....
[ { "created": "Wed, 11 Dec 2002 06:08:14 GMT", "version": "v1" } ]
2008-11-26
[ [ "Achasov", "N. N.", "" ], [ "Kiselev", "A. V.", "" ] ]
In this paper we present the fit to the recent high-statistical KLOE data on the phi -> eta pi^0 gamma decay. This decay mainly goes through the a_0 gamma intermediate state. The obtained results differ from those of the previous fits: data prefer a high a_0 mass and a considerably large a_0 coupling to the K\bar K}.
hep-ph/0308304
Magno Machado
M.A. Betemps, M.B. Gay Ducati, M.V.T. Machado, J. Raufeisen
Dilepton Transverse Momentum in the Color Dipole Approach
6 pages, 2 figures. Contribution to 11th International Workshop on Deep-Inelastic Scattering (DIS03), St. Petersburg, April 2003
null
null
LA-UR-03-5879
hep-ph
null
We investigate the Drell-Yan transverse momentum distribution in the framework of the color dipole approach. Special attention is paid to parton saturation effects at high energies. Predictions at LHC energies ($\sqrt{s}=14$ TeV) are given and extrapolated down to ISR energies ($\sqrt{s}=62$ GeV). Unitarity correctio...
[ { "created": "Thu, 28 Aug 2003 20:52:00 GMT", "version": "v1" } ]
2007-05-23
[ [ "Betemps", "M. A.", "" ], [ "Ducati", "M. B. Gay", "" ], [ "Machado", "M. V. T.", "" ], [ "Raufeisen", "J.", "" ] ]
We investigate the Drell-Yan transverse momentum distribution in the framework of the color dipole approach. Special attention is paid to parton saturation effects at high energies. Predictions at LHC energies ($\sqrt{s}=14$ TeV) are given and extrapolated down to ISR energies ($\sqrt{s}=62$ GeV). Unitarity corrections...
2211.14562
Ya-Juan Zheng
Junmou Chen, Kaoru Hagiwara, Junichi Kanzaki, Kentarou Mawatari and Ya-Juan Zheng
Helicity amplitudes in light-cone and Feynman-diagram gauges
20 pages, 14 figures; references added
null
null
KEK-TH-2471, IPMU22-0055
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recently proposed Feynman-diagram (FD) gauge propagator for massless and massive gauge bosons is obtained from a light-cone (LC) gauge propagator, by choosing the gauge vector along the opposite direction of the gauge boson three-momentum. We implement a general LC gauge propagator for all the gauge bosons of the Sta...
[ { "created": "Sat, 26 Nov 2022 13:25:03 GMT", "version": "v1" }, { "created": "Sun, 19 Nov 2023 07:30:06 GMT", "version": "v2" } ]
2023-11-21
[ [ "Chen", "Junmou", "" ], [ "Hagiwara", "Kaoru", "" ], [ "Kanzaki", "Junichi", "" ], [ "Mawatari", "Kentarou", "" ], [ "Zheng", "Ya-Juan", "" ] ]
Recently proposed Feynman-diagram (FD) gauge propagator for massless and massive gauge bosons is obtained from a light-cone (LC) gauge propagator, by choosing the gauge vector along the opposite direction of the gauge boson three-momentum. We implement a general LC gauge propagator for all the gauge bosons of the Stand...
0902.2803
A. D. Polosa
NV Drenska, R Faccini, AD Polosa
Exotic Hadrons with Hidden Charm and Strangeness
6 pages, 2 figures, minor changes made, references added
Phys.Rev.D79:077502,2009
10.1103/PhysRevD.79.077502
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate on exotic tetraquark hadrons of the kind [cs][cbar sbar] by computing their spectrum and decay modes within a constituent diquark-antidiquark model. We also compare these predictions with the present experimental knowledge.
[ { "created": "Mon, 16 Feb 2009 22:52:15 GMT", "version": "v1" }, { "created": "Fri, 3 Apr 2009 08:59:24 GMT", "version": "v2" } ]
2013-05-29
[ [ "Drenska", "NV", "" ], [ "Faccini", "R", "" ], [ "Polosa", "AD", "" ] ]
We investigate on exotic tetraquark hadrons of the kind [cs][cbar sbar] by computing their spectrum and decay modes within a constituent diquark-antidiquark model. We also compare these predictions with the present experimental knowledge.
1007.0375
Johannes Bluemlein
J. Ablinger, I. Bierenbaum, J. Bl\"umlein, A. Hasselhuhhn, S. Klein, C. Schneider, and F. Wi{\ss}brock
Heavy Flavor DIS Wilson coefficients in the asymptotic regime
8 pages LATEX, 4 figures, 1 style file
Nucl.Phys.Proc.Suppl.205-206:242-249,2010
10.1016/j.nuclphysbps.2010.08.050
DESY 10-093, SFB/CPP-10-58, IFIC/10-22, TTK-10-38
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We report on results for the heavy flavor contributions to $F_2(x,Q^2)$ in the limit $Q^2\gg m^2$ at {\sf NNLO}. By calculating the massive $3$--loop operator matrix elements, we account for all but the power suppressed terms in $m^2/Q^2$. Recently, the calculation of fixed Mellin moments of all $3$--loop massive ope...
[ { "created": "Fri, 2 Jul 2010 14:43:49 GMT", "version": "v1" } ]
2016-08-14
[ [ "Ablinger", "J.", "" ], [ "Bierenbaum", "I.", "" ], [ "Blümlein", "J.", "" ], [ "Hasselhuhhn", "A.", "" ], [ "Klein", "S.", "" ], [ "Schneider", "C.", "" ], [ "Wißbrock", "F.", "" ] ]
We report on results for the heavy flavor contributions to $F_2(x,Q^2)$ in the limit $Q^2\gg m^2$ at {\sf NNLO}. By calculating the massive $3$--loop operator matrix elements, we account for all but the power suppressed terms in $m^2/Q^2$. Recently, the calculation of fixed Mellin moments of all $3$--loop massive opera...
0810.5730
Fotios Ptochos
P. Giromini, F. Happacher, M. J. Kim, M. Kruse, K. Pitts, F. Ptohos, and S. Torre
Phenomenological interpretation of the multi-muon events reported by the CDF collaboration
6 pages, 9 figures. Submitted to Phys. Rev. D. Rapid Communication
null
null
FERMILAB-PUB-08-231-E
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a phenomenological conjecture of new physics that is suggested by the topology and kinematic properties of the multi-muon events recently reported by the CDF collaboration. We show that the salient features of the data can be accounted for by postulating the pair production of three new states h1, h2, and ...
[ { "created": "Fri, 31 Oct 2008 16:30:33 GMT", "version": "v1" } ]
2008-11-03
[ [ "Giromini", "P.", "" ], [ "Happacher", "F.", "" ], [ "Kim", "M. J.", "" ], [ "Kruse", "M.", "" ], [ "Pitts", "K.", "" ], [ "Ptohos", "F.", "" ], [ "Torre", "S.", "" ] ]
We present a phenomenological conjecture of new physics that is suggested by the topology and kinematic properties of the multi-muon events recently reported by the CDF collaboration. We show that the salient features of the data can be accounted for by postulating the pair production of three new states h1, h2, and h3...
1304.6856
Tanushree Basak
Tanushree Basak, Subhendra Mohanty
130 GeV gamma ray line and enhanced Higgs di-photon rate from Triplet-Singlet extended MSSM
ref. updated, version accepted for publication in JHEP
JHEP08(2013)020
10.1007/JHEP08(2013)020
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose an economic extension of minimal supersymmetric standard model with a SU(2) singlet and Y=0 triplet, which can explain (i) the 125 GeV Higgs boson without fine tuning, (ii) the 130 GeV $\gamma$-ray line seen at Fermi-LAT, (as well as a second photon line at 114 GeV)(iii) an enhanced Higgs di-photon decay r...
[ { "created": "Thu, 25 Apr 2013 10:04:06 GMT", "version": "v1" }, { "created": "Sun, 7 Jul 2013 16:08:15 GMT", "version": "v2" } ]
2015-06-15
[ [ "Basak", "Tanushree", "" ], [ "Mohanty", "Subhendra", "" ] ]
We propose an economic extension of minimal supersymmetric standard model with a SU(2) singlet and Y=0 triplet, which can explain (i) the 125 GeV Higgs boson without fine tuning, (ii) the 130 GeV $\gamma$-ray line seen at Fermi-LAT, (as well as a second photon line at 114 GeV)(iii) an enhanced Higgs di-photon decay rat...
hep-ph/9308356
Qiping Xu
Q. P. Xu and A. N. Kamal
Chiral symmetry and many-body nonleptonic decays of bottom hadrons
6 pages, latex, figures included. Talk presented at the 5th International Symposium on Heavy Flavour Physics, Montreal, Canada, July 6-10, 1993
null
null
Alberta Thy-39-93
hep-ph
null
Chiral symmetry can be applied to many-body nonleptonic decays of heavy hadrons. We establish the chiral effective Hamiltonian for some typical many-body nonleptonic decays of bottom hadrons. We discuss the lowest-order contributions coming from such a Hamiltonian and present, as an example, a calculation of decay di...
[ { "created": "Sat, 28 Aug 1993 19:44:58 GMT", "version": "v1" } ]
2007-05-23
[ [ "Xu", "Q. P.", "" ], [ "Kamal", "A. N.", "" ] ]
Chiral symmetry can be applied to many-body nonleptonic decays of heavy hadrons. We establish the chiral effective Hamiltonian for some typical many-body nonleptonic decays of bottom hadrons. We discuss the lowest-order contributions coming from such a Hamiltonian and present, as an example, a calculation of decay dist...
2005.07737
Celso de Camargo Barros Jr.
Marcelo G. L. Nogueira-Santos, Celso C. Barros Jr
Low energy pion-$\Lambda_b$ interaction
8 pages, 7 figures
null
10.1140/epjc/s10052-020-8151-z
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work we study the low energy pion-$\Lambda_b$ interaction considering effecective chiral Lagrangians that include pions, baryons and the corresponding resonances. Interactions mediated by a $\sigma$ meson exchange are also considered. The scattering amplitudes are calculated and then we determine the angular ...
[ { "created": "Fri, 15 May 2020 18:44:28 GMT", "version": "v1" } ]
2020-07-15
[ [ "Nogueira-Santos", "Marcelo G. L.", "" ], [ "Barros", "Celso C.", "Jr" ] ]
In this work we study the low energy pion-$\Lambda_b$ interaction considering effecective chiral Lagrangians that include pions, baryons and the corresponding resonances. Interactions mediated by a $\sigma$ meson exchange are also considered. The scattering amplitudes are calculated and then we determine the angular di...
hep-ph/0610351
Ivo de Medeiros Varzielas
I. de Medeiros Varzielas
Neutrino tri-bi-maximal mixing from Delta(27)
to appear in Proceedings of SUSY06, the 14th International Conference on Supersymmetry and the Unification of Fundamental Interactions, UC Irvine, California, 12-17 June 2006
AIPConf.Proc.903:397-400,2007
10.1063/1.2735208
null
hep-ph
null
The observed neutrino mixing, having a near maximal atmospheric neutrino mixing angle and a large solar mixing angle, is close to tri-bi-maximal, putting leptonic mixing in contrast with the small mixing of the quark sector. We discuss a model in which Delta(27) (a subgroup of SU(3)) is the family symmetry, and tri-b...
[ { "created": "Thu, 26 Oct 2006 09:23:21 GMT", "version": "v1" } ]
2008-11-26
[ [ "Varzielas", "I. de Medeiros", "" ] ]
The observed neutrino mixing, having a near maximal atmospheric neutrino mixing angle and a large solar mixing angle, is close to tri-bi-maximal, putting leptonic mixing in contrast with the small mixing of the quark sector. We discuss a model in which Delta(27) (a subgroup of SU(3)) is the family symmetry, and tri-bi-...
1106.5927
Zhen-hua Zhao
Chun Liu, Jin-tao Tian, Zhen-hua Zhao
MINOS Anomaly as A Signal of Lorentz Violation
9 pages, 4 figures, references added, accepted for publication in PLB
Phys.Lett.B702:154-157,2011
10.1016/j.physletb.2011.06.084
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recently, the MINOS collaboration reported an anomaly that the mass-squared difference and mixing angle of $\bar{\nu}_\mu$ $\leftrightarrow$ $\bar{\nu}_\tau$ are both different from that of $\nu_\mu$ $\leftrightarrow$ $\nu_\tau$. In this paper, based on the framework of neutrino oscillations, terms that break the Lor...
[ { "created": "Wed, 29 Jun 2011 12:56:16 GMT", "version": "v1" }, { "created": "Tue, 5 Jul 2011 14:56:29 GMT", "version": "v2" } ]
2011-07-25
[ [ "Liu", "Chun", "" ], [ "Tian", "Jin-tao", "" ], [ "Zhao", "Zhen-hua", "" ] ]
Recently, the MINOS collaboration reported an anomaly that the mass-squared difference and mixing angle of $\bar{\nu}_\mu$ $\leftrightarrow$ $\bar{\nu}_\tau$ are both different from that of $\nu_\mu$ $\leftrightarrow$ $\nu_\tau$. In this paper, based on the framework of neutrino oscillations, terms that break the Loren...
hep-ph/9307252
null
R. Alemany, J.J. Gomez-Cadenas, M.C. Gonzalez-Garcia and J.W.F. Valle
Searching for Exotic Tau Decays
CERN-PPE/93-49, MAD/PH/741, FTUV/92-588. 29 Pages in REVTeX. 13 Figures available upon request
null
null
null
hep-ph
null
We discuss the potential of $\tau$-charm and B factories for the search of new physics through the study of rare $\tau$ decays. We consider decays that involve the violation of lepton flavour conservation. Such decays bear a close relationship to the physics of neutrino mass and the properties of the lepton sector of...
[ { "created": "Mon, 12 Jul 1993 15:55:00 GMT", "version": "v1" } ]
2007-05-23
[ [ "Alemany", "R.", "" ], [ "Gomez-Cadenas", "J. J.", "" ], [ "Gonzalez-Garcia", "M. C.", "" ], [ "Valle", "J. W. F.", "" ] ]
We discuss the potential of $\tau$-charm and B factories for the search of new physics through the study of rare $\tau$ decays. We consider decays that involve the violation of lepton flavour conservation. Such decays bear a close relationship to the physics of neutrino mass and the properties of the lepton sector of t...
1202.5592
Lei Guo
Li Xiao-Peng, Guo Lei, Ma Wen-Gan, Han Liang, Zhang Ren-You, and Wang Shao-Ming
Single slepton production associated with a top quark at LHC in NLO QCD
33 pages, 18 figures, published version of EPJC
Eur. Phys. J. C (2012) 72:1918
10.1140/epjc/s10052-012-1918-0
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Single slepton production in association with a top quark at the CERN Large Hadron Collider (LHC) is one of the important processes in probing the R-parity violation couplings. We calculate the QCD next-to-leading order (NLO) corrections to the $pp \to t\slep^{-}(\bar{t}\slep^{+})+X$ process at the LHC and discuss th...
[ { "created": "Sat, 25 Feb 2012 00:44:12 GMT", "version": "v1" }, { "created": "Fri, 9 Mar 2012 06:40:23 GMT", "version": "v2" } ]
2012-03-29
[ [ "Xiao-Peng", "Li", "" ], [ "Lei", "Guo", "" ], [ "Wen-Gan", "Ma", "" ], [ "Liang", "Han", "" ], [ "Ren-You", "Zhang", "" ], [ "Shao-Ming", "Wang", "" ] ]
Single slepton production in association with a top quark at the CERN Large Hadron Collider (LHC) is one of the important processes in probing the R-parity violation couplings. We calculate the QCD next-to-leading order (NLO) corrections to the $pp \to t\slep^{-}(\bar{t}\slep^{+})+X$ process at the LHC and discuss the ...
1102.2340
Encieh Erfani
Manuel Drees and Encieh Erfani
Running-Mass Inflation Model and Primordial Black Holes
22 pages, 6 figures, Refs. added, Published in JCAP
JCAP 1104:005,2011
10.1088/1475-7516/2011/04/005
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We revisit the question whether the running-mass inflation model allows the formation of Primordial Black Holes (PBHs) that are sufficiently long-lived to serve as candidates for Dark Matter. We incorporate recent cosmological data, including the WMAP 7-year results. Moreover, we include "the running of the running" ...
[ { "created": "Fri, 11 Feb 2011 12:57:44 GMT", "version": "v1" }, { "created": "Mon, 4 Apr 2011 08:12:43 GMT", "version": "v2" }, { "created": "Fri, 8 Apr 2011 08:04:25 GMT", "version": "v3" } ]
2015-03-18
[ [ "Drees", "Manuel", "" ], [ "Erfani", "Encieh", "" ] ]
We revisit the question whether the running-mass inflation model allows the formation of Primordial Black Holes (PBHs) that are sufficiently long-lived to serve as candidates for Dark Matter. We incorporate recent cosmological data, including the WMAP 7-year results. Moreover, we include "the running of the running" of...
hep-ph/9801348
Gomez Mario
M.E. Gomez and K. Tamvakis
A Note On R-Parity Violation and Fermion Masses
8 pages, uses LaTeX2e
Phys. Rev. D 58, 057701 (1998)
10.1103/PhysRevD.58.057701
null
hep-ph
null
We consider a class of supersymmetric SU(3)\times SU(2)\times U(1) multihiggs models in which R-parity is violated through bilinear Higgs-lepton interactions. The required, due to R-parity violation, higgs-lepton rotations introduce an alternative way to generate the phenomenologically desirable fermion mass matrix s...
[ { "created": "Mon, 19 Jan 1998 18:08:32 GMT", "version": "v1" } ]
2016-08-25
[ [ "Gomez", "M. E.", "" ], [ "Tamvakis", "K.", "" ] ]
We consider a class of supersymmetric SU(3)\times SU(2)\times U(1) multihiggs models in which R-parity is violated through bilinear Higgs-lepton interactions. The required, due to R-parity violation, higgs-lepton rotations introduce an alternative way to generate the phenomenologically desirable fermion mass matrix str...
hep-ph/0504258
Torleif E. O. Ericson
T. E. O. Ericson (CERN)
Isospin Violation in Pion-Nucleon Scattering at Threshold
10 pages, 1 eps figure. Invited talk to appear in Proceedings of EXA05, Vienna, Feb. 21-25 2005, Verlag der oesterreichischen Akademie des Wissenschaften
null
null
CERN-PH-TH/2005-075
hep-ph
null
We discuss the electromagnetic corrections to the pion-nucleon scattering lengths generated by minimal e. m. coupling from a knowledge of the low energy expansion of the pion-nucleon elastic scattering amplitude as well as from the nucleon and delta pole terms, all a consequence of purely strong interactions. We assu...
[ { "created": "Wed, 27 Apr 2005 13:44:38 GMT", "version": "v1" } ]
2007-05-23
[ [ "Ericson", "T. E. O.", "", "CERN" ] ]
We discuss the electromagnetic corrections to the pion-nucleon scattering lengths generated by minimal e. m. coupling from a knowledge of the low energy expansion of the pion-nucleon elastic scattering amplitude as well as from the nucleon and delta pole terms, all a consequence of purely strong interactions. We assume...
hep-ph/0004160
Gabriela Barenboim
G. Barenboim and F. Scheck (Mainz)
Tau neutrinos from muon storage rings
11 pages, 5 postscript figures (eps)
Phys.Lett.B485:171-177,2000
10.1016/S0370-2693(00)00708-5
null
hep-ph
null
Charged tau leptons emerging in a long baseline experiment with a muon storage ring and a far-away detector will positively establish neutrino oscillations. We study the conversion of $\nu_\mu$ ($\bar{\nu}_\mu$) and of $\bar{\nu}_e$ ($\nu_e$) to $\nu_\tau$ or $\bar{\nu}_\tau$ for neutrinos from a 20 GeV muon storage ...
[ { "created": "Mon, 17 Apr 2000 11:00:00 GMT", "version": "v1" } ]
2014-11-17
[ [ "Barenboim", "G.", "", "Mainz" ], [ "Scheck", "F.", "", "Mainz" ] ]
Charged tau leptons emerging in a long baseline experiment with a muon storage ring and a far-away detector will positively establish neutrino oscillations. We study the conversion of $\nu_\mu$ ($\bar{\nu}_\mu$) and of $\bar{\nu}_e$ ($\nu_e$) to $\nu_\tau$ or $\bar{\nu}_\tau$ for neutrinos from a 20 GeV muon storage ri...
0911.0734
Yu-Kuo Hsiao
Kingman Cheung, Cheng-Wei Chiang, Yu-Kuo Hsiao, and Tzu-Chiang Yuan
Longitudinal Weak Gauge Bosons Scattering in Hidden Z' Models
18 pages, 4 figures, and 2 tables, version to appear in PRD
Phys.Rev.D81:053001,2010
10.1103/PhysRevD.81.053001
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Longitudinal weak gauge boson scattering has been well known as a powerful method to probe the underlying mechanism of the electroweak symmetry breaking sector of the Standard Model. We point out that longitudinal weak gauge boson scattering is also sensitive to the gauge sector when the non-Abelian trilinear and qua...
[ { "created": "Wed, 4 Nov 2009 05:49:42 GMT", "version": "v1" }, { "created": "Wed, 18 Nov 2009 06:51:28 GMT", "version": "v2" }, { "created": "Tue, 2 Mar 2010 09:07:37 GMT", "version": "v3" } ]
2010-04-06
[ [ "Cheung", "Kingman", "" ], [ "Chiang", "Cheng-Wei", "" ], [ "Hsiao", "Yu-Kuo", "" ], [ "Yuan", "Tzu-Chiang", "" ] ]
Longitudinal weak gauge boson scattering has been well known as a powerful method to probe the underlying mechanism of the electroweak symmetry breaking sector of the Standard Model. We point out that longitudinal weak gauge boson scattering is also sensitive to the gauge sector when the non-Abelian trilinear and quart...
2009.05779
Andrew Akeroyd
A.G. Akeroyd, Stefano Moretti, Tetsuo Shindou, Muyuan Song
CP asymmetries of ${\overline B}\to X_s/X_d\gamma$ in models with three Higgs doublets
25 pages, 14 figures
Phys. Rev. D 103, 015035 (2021)
10.1103/PhysRevD.103.015035
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Direct CP asymmetries (${\cal A}_{CP}$) in the inclusive decays of ${\overline B}\to X_s\gamma$ and ${\overline B}\to X_{s+d}\gamma$ of the order of $1\%$ will be probed at the BELLE II experiment. In this work, three such asymmetries are studied in the context of a three-Higgs-doublet model (3HDM), and it is shown t...
[ { "created": "Sat, 12 Sep 2020 12:34:14 GMT", "version": "v1" } ]
2021-02-03
[ [ "Akeroyd", "A. G.", "" ], [ "Moretti", "Stefano", "" ], [ "Shindou", "Tetsuo", "" ], [ "Song", "Muyuan", "" ] ]
Direct CP asymmetries (${\cal A}_{CP}$) in the inclusive decays of ${\overline B}\to X_s\gamma$ and ${\overline B}\to X_{s+d}\gamma$ of the order of $1\%$ will be probed at the BELLE II experiment. In this work, three such asymmetries are studied in the context of a three-Higgs-doublet model (3HDM), and it is shown tha...
1404.7510
Howard Baer
Howard Baer, Vernon Barger, Dan Mickelson, Azar Mustafayev and Xerxes Tata
Physics at a Higgsino Factory
28 pages
null
10.1007/JHEP06(2014)172
UH-511-1234-14
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Naturalness arguments applied to supersymmetric theories imply a spectrum containing four light higgsinos \tz_{1,2} and \tw_1^+- with masses ~ 100-300 GeV (the closer to M_Z the more natural). The compressed mass spectrum and associated low energy release from \tw_1 and \tz_2 three-body decay makes higgsinos difficul...
[ { "created": "Tue, 29 Apr 2014 20:02:15 GMT", "version": "v1" } ]
2015-06-19
[ [ "Baer", "Howard", "" ], [ "Barger", "Vernon", "" ], [ "Mickelson", "Dan", "" ], [ "Mustafayev", "Azar", "" ], [ "Tata", "Xerxes", "" ] ]
Naturalness arguments applied to supersymmetric theories imply a spectrum containing four light higgsinos \tz_{1,2} and \tw_1^+- with masses ~ 100-300 GeV (the closer to M_Z the more natural). The compressed mass spectrum and associated low energy release from \tw_1 and \tz_2 three-body decay makes higgsinos difficult ...
hep-ph/9805414
David Miller
D. J. Miller (RAL) and Michael H. Seymour (RAL)
Secondary Heavy Quark Pair Production in e+e- Annihilation
11 pages, 4 postscript figures
Phys.Lett.B435:213-220,1998
10.1016/S0370-2693(98)00773-4
RAL-TR-98-042
hep-ph
null
The multiplicity of heavy quarks from gluon splitting in e+e- annihilation has now been theoretically calculated and experimentally measured at LEP. However, the experimental measurement requires theoretical input for the shape of the multiplicity with respect to an event shape. In this paper we calculate the multipl...
[ { "created": "Thu, 21 May 1998 16:41:59 GMT", "version": "v1" } ]
2009-04-13
[ [ "Miller", "D. J.", "", "RAL" ], [ "Seymour", "Michael H.", "", "RAL" ] ]
The multiplicity of heavy quarks from gluon splitting in e+e- annihilation has now been theoretically calculated and experimentally measured at LEP. However, the experimental measurement requires theoretical input for the shape of the multiplicity with respect to an event shape. In this paper we calculate the multiplic...
2009.13547
Subhasis Samanta
Subhasis Samanta and Francesco Giacosa
QFT treatment of a bound state in a thermal gas
Accepted for publication in Physical Review D
Phys. Rev. D 102, 116023 (2020)
10.1103/PhysRevD.102.116023
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate how to include bound states in a thermal gas in the context of quantum field theory (QFT). To this end, we use for definiteness a scalar QFT with a $\varphi^{4}$ interaction, where the field $\varphi$ represents a particle with mass $m$. A bound state of the $\varphi$-$\varphi$ type is created when the...
[ { "created": "Mon, 28 Sep 2020 18:00:23 GMT", "version": "v1" }, { "created": "Wed, 16 Dec 2020 13:49:39 GMT", "version": "v2" } ]
2021-01-01
[ [ "Samanta", "Subhasis", "" ], [ "Giacosa", "Francesco", "" ] ]
We investigate how to include bound states in a thermal gas in the context of quantum field theory (QFT). To this end, we use for definiteness a scalar QFT with a $\varphi^{4}$ interaction, where the field $\varphi$ represents a particle with mass $m$. A bound state of the $\varphi$-$\varphi$ type is created when the c...
hep-ph/9209263
Jim Amundson
James F. Amundson and Jonathan L. Rosner
Heavy Quark Symmetry Violation in Semileptonic Decays of D Mesons
25 pages (LaTeX) + 7 pages of Postscript figures (included at end), EFI-92-36
Phys.Rev. D47 (1993) 1951-1963
10.1103/PhysRevD.47.1951
null
hep-ph
null
The decays of $D$ mesons to $K l \nu$ and $K^* l \nu$ final states exhibit significant deviations from the predictions of heavy-quark symmetry, as one might expect since the strange quark's mass is of the same order as the QCD scale. Nonetheless, in order to understand where the most significant effects might lie for...
[ { "created": "Tue, 22 Sep 1992 03:28:23 GMT", "version": "v1" } ]
2009-10-22
[ [ "Amundson", "James F.", "" ], [ "Rosner", "Jonathan L.", "" ] ]
The decays of $D$ mesons to $K l \nu$ and $K^* l \nu$ final states exhibit significant deviations from the predictions of heavy-quark symmetry, as one might expect since the strange quark's mass is of the same order as the QCD scale. Nonetheless, in order to understand where the most significant effects might lie for h...
1109.6293
Bowen Xiao
Fabio Dominguez, Jian-Wei Qiu, Bo-Wen Xiao, Feng Yuan
On the linearly polarized gluon distributions in the color dipole model
10 pages,v2 with minor revision
null
10.1103/PhysRevD.85.045003
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show that the linearly polarized gluon distributions appear in the color dipole model as we derive the full cross sections of the DIS dijet production and the Drell-Yan dijet ($\gamma^*$ jet correlation) process. Together with the normal Weizs\"acker-Williams gluon distribution, the linearly polarized one will con...
[ { "created": "Wed, 28 Sep 2011 18:48:07 GMT", "version": "v1" }, { "created": "Tue, 31 Jan 2012 01:36:45 GMT", "version": "v2" } ]
2015-05-30
[ [ "Dominguez", "Fabio", "" ], [ "Qiu", "Jian-Wei", "" ], [ "Xiao", "Bo-Wen", "" ], [ "Yuan", "Feng", "" ] ]
We show that the linearly polarized gluon distributions appear in the color dipole model as we derive the full cross sections of the DIS dijet production and the Drell-Yan dijet ($\gamma^*$ jet correlation) process. Together with the normal Weizs\"acker-Williams gluon distribution, the linearly polarized one will contr...
hep-ph/9405370
Leonid Burakovsky
L. Burakovsky and L.P. Horwitz
Relativistic mass distribution in event-anti-event system and ``realistic'' equation of state for hot hadronic matter
19 pages, report TAUP-2161-94
Found.Phys. 25 (1995) 1127-1146
10.1007/BF02055255
null
hep-ph hep-th
null
We find the equation of state $p,\rho \propto T^6,$ which gives the value of the sound velocity $c^2=0.20,$ in agreement with the ``realistic'' equation of state for hot hadronic matter suggested by Shuryak, in the framework of a covariant relativistic statistical mechanics of an event--anti-event system with small c...
[ { "created": "Tue, 24 May 1994 11:35:15 GMT", "version": "v1" } ]
2009-10-28
[ [ "Burakovsky", "L.", "" ], [ "Horwitz", "L. P.", "" ] ]
We find the equation of state $p,\rho \propto T^6,$ which gives the value of the sound velocity $c^2=0.20,$ in agreement with the ``realistic'' equation of state for hot hadronic matter suggested by Shuryak, in the framework of a covariant relativistic statistical mechanics of an event--anti-event system with small che...
1408.1811
Mustafa Amin
Kaloian D. Lozanov and Mustafa A. Amin
End of inflation, oscillons and matter-antimatter asymmetry
19 pages, 9 figures. v3: references added and minor changes in text. Published in Phys. Rev. D
Phys. Rev. D 90, 083528 (2014)
10.1103/PhysRevD.90.083528
null
hep-ph astro-ph.CO hep-th nlin.PS
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The dynamics at the end of inflation can generate an asymmetry between particles and anti-particles of the inflaton field. This asymmetry can be transferred to baryons via decays, generating a baryon asymmetry in our Universe. We explore this idea in detail for a complex inflaton governed by an observationally consis...
[ { "created": "Fri, 8 Aug 2014 10:40:53 GMT", "version": "v1" }, { "created": "Mon, 1 Sep 2014 18:56:44 GMT", "version": "v2" }, { "created": "Thu, 4 Dec 2014 14:20:04 GMT", "version": "v3" } ]
2014-12-05
[ [ "Lozanov", "Kaloian D.", "" ], [ "Amin", "Mustafa A.", "" ] ]
The dynamics at the end of inflation can generate an asymmetry between particles and anti-particles of the inflaton field. This asymmetry can be transferred to baryons via decays, generating a baryon asymmetry in our Universe. We explore this idea in detail for a complex inflaton governed by an observationally consiste...
hep-ph/0607129
Shahida Dar
Shahida Dar, Qaisar Shafi, Arunansu Sil
Flux of Primordial Monopoles
17 pages, 4 figures, revtex4
Phys.Rev.D74:035013,2006
10.1103/PhysRevD.74.035013
BA-06-11
hep-ph
null
We discuss how in supersymmetric models with D and F-flat directions, a primordial monopole flux of order 10^{-16} - 10^{-18} cm^{-2} sec^{-1} sr^{-1} can coexist with the observed baryon asymmetry. A modified Affleck-Dine scenario yields the desired asymmetry if the monopoles are superheavy (~ 10^{13}-10^{18} GeV). ...
[ { "created": "Tue, 11 Jul 2006 19:08:06 GMT", "version": "v1" } ]
2011-05-12
[ [ "Dar", "Shahida", "" ], [ "Shafi", "Qaisar", "" ], [ "Sil", "Arunansu", "" ] ]
We discuss how in supersymmetric models with D and F-flat directions, a primordial monopole flux of order 10^{-16} - 10^{-18} cm^{-2} sec^{-1} sr^{-1} can coexist with the observed baryon asymmetry. A modified Affleck-Dine scenario yields the desired asymmetry if the monopoles are superheavy (~ 10^{13}-10^{18} GeV). Fo...
1611.05211
Guanghua Duan
Guang Hua Duan, Ken-ichi Hikasa, Lei Wu, Jin Min Yang, Mengchao Zhang
Leptonic mono-top from single stop production at LHC
15 pages, discussions added, version accepted by JHEP
null
10.1007/JHEP03(2017)091
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Top squark (stop) can be produced via QCD interaction but also the electroweak interaction at the LHC. In this paper, we investigate the observability of the associated production of stop and chargino, $pp \to \tilde{t}_1\tilde{\chi}^-_1$, in compressed electroweakino scenario at the 14 TeV LHC. Due to the small mass...
[ { "created": "Wed, 16 Nov 2016 10:31:02 GMT", "version": "v1" }, { "created": "Mon, 13 Mar 2017 09:40:23 GMT", "version": "v2" } ]
2017-04-05
[ [ "Duan", "Guang Hua", "" ], [ "Hikasa", "Ken-ichi", "" ], [ "Wu", "Lei", "" ], [ "Yang", "Jin Min", "" ], [ "Zhang", "Mengchao", "" ] ]
Top squark (stop) can be produced via QCD interaction but also the electroweak interaction at the LHC. In this paper, we investigate the observability of the associated production of stop and chargino, $pp \to \tilde{t}_1\tilde{\chi}^-_1$, in compressed electroweakino scenario at the 14 TeV LHC. Due to the small mass-s...
1412.2724
Wan-Il Park
Gabriela Barenboim, Wan-Il Park
Spiral Inflation
5 pages, 7 figures, typos corrected, matched to journal version
null
10.1016/j.physletb.2014.12.042
FTUV-14-12-25, IFIC-14-79
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a novel scenario of primordial inflation in which the inflaton goes through a spiral motion starting from around the top of a symmetry breaking potential. We show that, even though inflation takes place for a field value much smaller than Planck scale, it is possible to obtain relatively large tensor to sc...
[ { "created": "Mon, 8 Dec 2014 20:31:32 GMT", "version": "v1" }, { "created": "Tue, 16 Dec 2014 18:08:41 GMT", "version": "v2" }, { "created": "Wed, 21 Jan 2015 20:01:44 GMT", "version": "v3" } ]
2018-05-09
[ [ "Barenboim", "Gabriela", "" ], [ "Park", "Wan-Il", "" ] ]
We propose a novel scenario of primordial inflation in which the inflaton goes through a spiral motion starting from around the top of a symmetry breaking potential. We show that, even though inflation takes place for a field value much smaller than Planck scale, it is possible to obtain relatively large tensor to scal...
hep-ph/0107139
Bojan Golli
Wojciech Broniowski, Bojan Golli, Georges Ripka
Solitons in nonlocal chiral quark models
42 pages, 8 figures, a new section presenting the results with the chiral-circle constraint
Nucl.Phys. A703 (2002) 667-701
10.1016/S0375-9474(01)01670-0
null
hep-ph nucl-th
null
Properties of hedgehog solitons in a chiral quark model with nonlocal regulators are described. We discuss the formation of the hedgehog soliton, the quantization of the baryon number, the energetic stability, the gauging and construction of Noether currents with help of path-ordered P-exponents, and the evaluation o...
[ { "created": "Thu, 12 Jul 2001 17:26:25 GMT", "version": "v1" }, { "created": "Wed, 7 Nov 2001 19:55:23 GMT", "version": "v2" } ]
2009-11-07
[ [ "Broniowski", "Wojciech", "" ], [ "Golli", "Bojan", "" ], [ "Ripka", "Georges", "" ] ]
Properties of hedgehog solitons in a chiral quark model with nonlocal regulators are described. We discuss the formation of the hedgehog soliton, the quantization of the baryon number, the energetic stability, the gauging and construction of Noether currents with help of path-ordered P-exponents, and the evaluation of ...
hep-ph/0008293
Sharon Jensen
Prem P. Srivastava and Stanley J. Brodsky
Light-Front QCD in Light-Cone Gauge
Presented at VII Hadron Physics 2000, Caraguatatuba, Sao Paulo, Brazil, 10-15 April 2000
null
10.1142/9789812811653_0056
SLAC-PUB-8591
hep-ph
null
The light-front (LF) quantization of QCD in light-cone (l.c.) gauge is discussed. The Dirac method is employed to construct the LF Hamiltonian and theory quantized canonically. The Dyson-Wick perturbation theory expansion based on LF-time ordering is constructed. The framework incorporates in it simultaneously the Lo...
[ { "created": "Mon, 28 Aug 2000 22:28:55 GMT", "version": "v1" } ]
2017-08-23
[ [ "Srivastava", "Prem P.", "" ], [ "Brodsky", "Stanley J.", "" ] ]
The light-front (LF) quantization of QCD in light-cone (l.c.) gauge is discussed. The Dirac method is employed to construct the LF Hamiltonian and theory quantized canonically. The Dyson-Wick perturbation theory expansion based on LF-time ordering is constructed. The framework incorporates in it simultaneously the Lore...
1912.09843
Hee Sok Chung
Geoffrey T. Bodwin, Hee Sok Chung
New method for fitting coefficients in standard model effective theory
27 pages, 3 tables, minor clarifications, corrections, improvements in notation. Corresponds to published version
Phys. Rev. D 101, 115039 (2020)
10.1103/PhysRevD.101.115039
TUM-EFT 134/19
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present an alternative method for carrying out a principal-component analysis of Wilson coefficients in standard model effective field theory (SMEFT). The method is based on singular-value decomposition (SVD). The SVD method provides information about the sensitivity of experimental observables to physics beyond t...
[ { "created": "Fri, 20 Dec 2019 14:23:22 GMT", "version": "v1" }, { "created": "Fri, 24 Jan 2020 11:20:21 GMT", "version": "v2" }, { "created": "Sat, 18 Apr 2020 20:52:42 GMT", "version": "v3" }, { "created": "Fri, 5 Jun 2020 14:55:33 GMT", "version": "v4" }, { "cr...
2020-07-03
[ [ "Bodwin", "Geoffrey T.", "" ], [ "Chung", "Hee Sok", "" ] ]
We present an alternative method for carrying out a principal-component analysis of Wilson coefficients in standard model effective field theory (SMEFT). The method is based on singular-value decomposition (SVD). The SVD method provides information about the sensitivity of experimental observables to physics beyond the...
hep-ph/0003252
Shinji Tsujikawa
S. Tsujikawa (Waseda University)
Particle production in the oscillating inflation model
18 pages, 14 figures
Phys.Rev.D61:083516,2000
10.1103/PhysRevD.61.083516
WU-AP/94/00
hep-ph astro-ph gr-qc hep-th
null
We investigate the particle production of a scalar field $\chi$ coupled to an inflaton field $\phi$ ($g^2\phi^2\chi^2/2$) in the {\it oscillating inflation} model, which was recently proposed by Damour and Mukhanov. Although the fluctuation of the $\phi$ field can be effectively enhanced during a stage of the oscilla...
[ { "created": "Sun, 26 Mar 2000 05:18:43 GMT", "version": "v1" } ]
2008-11-26
[ [ "Tsujikawa", "S.", "", "Waseda University" ] ]
We investigate the particle production of a scalar field $\chi$ coupled to an inflaton field $\phi$ ($g^2\phi^2\chi^2/2$) in the {\it oscillating inflation} model, which was recently proposed by Damour and Mukhanov. Although the fluctuation of the $\phi$ field can be effectively enhanced during a stage of the oscillati...
0710.4110
Javier Magnin
C. Avila, I. Monroy, J.C. Sanabria, J. Magnin
On the s-sbar asymmetry of the nucleon sea
6 pages, 2 figures
null
null
null
hep-ph
null
We study the $s-\bar s$ asymmetry in the nucleon sea using a model in which the proton wave function includes a Kaon-Hyperon Fock state. Parameters of the model are fixed by fitting the $s-\bar s$ asymmetry obtained from global fits to Deep Inelastic Scattering data. We discuss possible effects of the $s-\bar s$ asym...
[ { "created": "Mon, 22 Oct 2007 17:18:37 GMT", "version": "v1" } ]
2007-10-23
[ [ "Avila", "C.", "" ], [ "Monroy", "I.", "" ], [ "Sanabria", "J. C.", "" ], [ "Magnin", "J.", "" ] ]
We study the $s-\bar s$ asymmetry in the nucleon sea using a model in which the proton wave function includes a Kaon-Hyperon Fock state. Parameters of the model are fixed by fitting the $s-\bar s$ asymmetry obtained from global fits to Deep Inelastic Scattering data. We discuss possible effects of the $s-\bar s$ asymme...
hep-ph/0209203
Ram Brustein
Irit Maor, Ram Brustein
Distinguishing among Scalar Field Models of Dark Energy
15 pages, 5 figures
Phys.Rev. D67 (2003) 103508
10.1103/PhysRevD.67.103508
null
hep-ph astro-ph
null
We show that various scalar field models of dark energy predict degenerate luminosity distance history of the Universe and thus cannot be distinguished by supernovae measurements alone. In particular, models with a vanishing cosmological constant (the value of the potential at its minimum) are degenerate with models ...
[ { "created": "Wed, 18 Sep 2002 13:33:18 GMT", "version": "v1" } ]
2009-11-07
[ [ "Maor", "Irit", "" ], [ "Brustein", "Ram", "" ] ]
We show that various scalar field models of dark energy predict degenerate luminosity distance history of the Universe and thus cannot be distinguished by supernovae measurements alone. In particular, models with a vanishing cosmological constant (the value of the potential at its minimum) are degenerate with models wi...
0904.0921
Manuel Masip
Manuel Masip, Iacopo Mastromatteo
Cosmic-ray knee and flux of secondaries from interactions of cosmic rays with dark matter
Talk presented at 44th Rencontres de Moriond ("Very High Energy Phenomena in the Universe", La Thuile, Feb. 1-8 2009)
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss possible implications of a large interaction cross section between cosmic rays and dark matter particles due to new physics at the TeV scale. In particular, in models with extra dimensions and a low fundamental scale of gravity the cross section grows very fast at transplanckian energies. We argue that the...
[ { "created": "Mon, 6 Apr 2009 13:50:13 GMT", "version": "v1" } ]
2009-04-07
[ [ "Masip", "Manuel", "" ], [ "Mastromatteo", "Iacopo", "" ] ]
We discuss possible implications of a large interaction cross section between cosmic rays and dark matter particles due to new physics at the TeV scale. In particular, in models with extra dimensions and a low fundamental scale of gravity the cross section grows very fast at transplanckian energies. We argue that the k...
0710.1922
Bowen Xiao
Bo-Wen Xiao
On the anomalous dimensions of the multiple pomeron exchanges
26 pages, 7 figures. A few changes are made in Appendix F
Nucl.Phys.A798:132-164,2008
10.1016/j.nuclphysa.2007.10.013
null
hep-ph
null
High energy hard scattering in large $N_{c}$ limit can be described by the QCD dipole model. In this paper, single, double and triple BFKL pomeron exchange amplitudes are computed explicitly within the dipole model. Based on the calculation, the general formula $\gamma^{(k)*}_{0}=\chi^{-1}(k\chi({1/2}))$ which govern...
[ { "created": "Wed, 10 Oct 2007 04:20:06 GMT", "version": "v1" }, { "created": "Fri, 12 Oct 2007 01:13:37 GMT", "version": "v2" }, { "created": "Tue, 20 Nov 2007 05:55:28 GMT", "version": "v3" } ]
2010-03-25
[ [ "Xiao", "Bo-Wen", "" ] ]
High energy hard scattering in large $N_{c}$ limit can be described by the QCD dipole model. In this paper, single, double and triple BFKL pomeron exchange amplitudes are computed explicitly within the dipole model. Based on the calculation, the general formula $\gamma^{(k)*}_{0}=\chi^{-1}(k\chi({1/2}))$ which governs ...
hep-ph/0307015
J. A. R. Cembranos
J.A.R. Cembranos, A. Dobado, A. L. Maroto
Living on a brane
4 pages, 1 figure. Proceedings of the 29th Spanish Physical Royal Society Biennial on the centennial of the society, Madrid, Spain, July 2003
RSEF Conf.Proc. M-30628 (2003) 808
null
null
hep-ph
null
We briefly review the distinctive signals of brane world models with low tension. We pay special attention to the brane fluctuations (branons), whose phenomenological consequences could be important both in high energy particle physics experiments and in astrophysical and cosmological observations.
[ { "created": "Tue, 1 Jul 2003 11:11:37 GMT", "version": "v1" } ]
2007-05-23
[ [ "Cembranos", "J. A. R.", "" ], [ "Dobado", "A.", "" ], [ "Maroto", "A. L.", "" ] ]
We briefly review the distinctive signals of brane world models with low tension. We pay special attention to the brane fluctuations (branons), whose phenomenological consequences could be important both in high energy particle physics experiments and in astrophysical and cosmological observations.
2112.10618
Giovanni Barontini
G. Barontini, L. Blackburn, V. Boyer, F. Butuc-Mayer, X. Calmet, J. R. Crespo Lopez-Urrutia, E. A. Curtis, B. Darquie, J. Dunningham, N. J. Fitch, E. M. Forgan, K. Georgiou, P. Gill, R. M. Godun, J. Goldwin, V. Guarrera, A. C. Harwood, I. R. Hill, R. J. Hendricks, M. Jeong, M. Y. H. Johnson, M. Keller, L. P. Ko...
Measuring the stability of fundamental constants with a network of clocks
null
EPJ Quantum Technology volume 9, Article number: 12 (2022)
10.1140/epjqt/s40507-022-00130-5
null
hep-ph astro-ph.CO gr-qc hep-ex physics.atom-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The detection of variations of fundamental constants of the Standard Model would provide us with compelling evidence of new physics, and could lift the veil on the nature of dark matter and dark energy. In this work, we discuss how a network of atomic and molecular clocks can be used to look for such variations with ...
[ { "created": "Mon, 20 Dec 2021 15:31:35 GMT", "version": "v1" }, { "created": "Wed, 11 May 2022 11:12:17 GMT", "version": "v2" } ]
2022-05-12
[ [ "Barontini", "G.", "" ], [ "Blackburn", "L.", "" ], [ "Boyer", "V.", "" ], [ "Butuc-Mayer", "F.", "" ], [ "Calmet", "X.", "" ], [ "Lopez-Urrutia", "J. R. Crespo", "" ], [ "Curtis", "E. A.", "" ], [ ...
The detection of variations of fundamental constants of the Standard Model would provide us with compelling evidence of new physics, and could lift the veil on the nature of dark matter and dark energy. In this work, we discuss how a network of atomic and molecular clocks can be used to look for such variations with un...
1101.1832
Julien Baglio
J. Baglio, A. Djouadi, S. Ferrag and R.M. Godbole
The Tevatron Higgs exclusion limits and theoretical uncertainties: a critical appraisal
11 pages, 5 Figures. Version published in Physics Letter B, including an erratum
Phys.Lett.B699:368-371,2011; Erratum-ibid.B702:105-106,2011
10.1016/j.physletb.2011.04.039 10.1016/j.physletb.2011.06.074
CERN-PH-TH/2010-315, LPT-ORSAY-10-107
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We examine the exclusion limits set by the CDF and D0 experiments on the Standard Model Higgs boson mass from their searches at the Tevatron in the light of large theoretical uncertainties on the signal and background cross sections. We show that when these uncertainties are consistently taken into account, the sensi...
[ { "created": "Mon, 10 Jan 2011 14:40:53 GMT", "version": "v1" }, { "created": "Thu, 28 Apr 2011 17:24:13 GMT", "version": "v2" }, { "created": "Sat, 25 Jun 2011 07:39:25 GMT", "version": "v3" } ]
2011-07-26
[ [ "Baglio", "J.", "" ], [ "Djouadi", "A.", "" ], [ "Ferrag", "S.", "" ], [ "Godbole", "R. M.", "" ] ]
We examine the exclusion limits set by the CDF and D0 experiments on the Standard Model Higgs boson mass from their searches at the Tevatron in the light of large theoretical uncertainties on the signal and background cross sections. We show that when these uncertainties are consistently taken into account, the sensiti...
1705.08192
Ahmad Farzaneh Kord Dr
M. Haddadi Moghaddam, B. Azadegan, A. F. Kord and W. M. Alberico
Non-relativistic approximate numerical ideal-magneto hydrodynamics of (1+1) D transverse flow in Bjorken scenario
null
Eur.Phys.J. C78 (2018) no.3, 255
10.1140/epjc/s10052-018-5708-1
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this study, we investigate the impact of the magnetic field on the evolution of the transverse flow of QGP matter in the magneto-hydrodynamic (MHD) framework. We assume that the magnetic field is perpendicular to the reaction plane and then we solve the coupled Maxwell and conservation equations in (1+1D) transver...
[ { "created": "Tue, 23 May 2017 11:39:06 GMT", "version": "v1" }, { "created": "Sun, 15 Oct 2017 09:38:21 GMT", "version": "v2" } ]
2019-12-03
[ [ "Moghaddam", "M. Haddadi", "" ], [ "Azadegan", "B.", "" ], [ "Kord", "A. F.", "" ], [ "Alberico", "W. M.", "" ] ]
In this study, we investigate the impact of the magnetic field on the evolution of the transverse flow of QGP matter in the magneto-hydrodynamic (MHD) framework. We assume that the magnetic field is perpendicular to the reaction plane and then we solve the coupled Maxwell and conservation equations in (1+1D) transverse...
2404.18667
Juliane Haug
Juliane Haug, Oliver Sch\"ule, and Fabian Wunder
A semi-analytical $x$-space solution for parton evolution -- Application to non-singlet and singlet DGLAP equation
29 pages, 11 figures, ancillary files with Mathematica and Python implementations of POMPOM, updated to match journal version
JHEP 07 (2024) 072
10.1007/JHEP07(2024)072
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We present a novel semi-analytical method for parton evolution. It is based on constructing a family of analytic functions spanning $x$-space which is closed under the considered evolution equation. Using these functions as a basis, the original integro-differential evolution equation transforms into a system of coup...
[ { "created": "Mon, 29 Apr 2024 12:55:22 GMT", "version": "v1" }, { "created": "Tue, 30 Apr 2024 14:54:10 GMT", "version": "v2" }, { "created": "Mon, 10 Jun 2024 14:11:47 GMT", "version": "v3" }, { "created": "Fri, 2 Aug 2024 12:01:07 GMT", "version": "v4" } ]
2024-08-05
[ [ "Haug", "Juliane", "" ], [ "Schüle", "Oliver", "" ], [ "Wunder", "Fabian", "" ] ]
We present a novel semi-analytical method for parton evolution. It is based on constructing a family of analytic functions spanning $x$-space which is closed under the considered evolution equation. Using these functions as a basis, the original integro-differential evolution equation transforms into a system of couple...
1605.03224
Fei Teng
Jason Kumar, Pearl Sandick, Fei Teng and Takahiro Yamamoto
Gamma-ray Signals from Dark Matter Annihilation Via Charged Mediators
34 pages, 27 figures. One reference added. Published version
Phys. Rev. D 94, 015022 (2016)
10.1103/PhysRevD.94.015022
null
hep-ph astro-ph.CO astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider a simplified model in which Majorana fermion dark matter annihilates to charged fermions through exchange of charged mediators. We consider the gamma-ray signals arising from the processes $XX \rightarrow \bar f f \gamma$, $\gamma \gamma$, and $\gamma Z$ in the most general case, including non-trivial fer...
[ { "created": "Tue, 10 May 2016 21:53:39 GMT", "version": "v1" }, { "created": "Tue, 19 Jul 2016 06:12:29 GMT", "version": "v2" } ]
2016-07-27
[ [ "Kumar", "Jason", "" ], [ "Sandick", "Pearl", "" ], [ "Teng", "Fei", "" ], [ "Yamamoto", "Takahiro", "" ] ]
We consider a simplified model in which Majorana fermion dark matter annihilates to charged fermions through exchange of charged mediators. We consider the gamma-ray signals arising from the processes $XX \rightarrow \bar f f \gamma$, $\gamma \gamma$, and $\gamma Z$ in the most general case, including non-trivial fermi...
hep-ph/0005097
W. Des Ramsay
Willem T.H. van Oers (University of Manitoba, Canada)
Constraints on a Parity-even/Time-Reversal-odd Interaction
7 Pages LaTeX, 2 PostScript figures, uses aipproc.sty. Written version of Invited Paper presented at the 3rd International Symposium on Symmetries in Subatomic Physics, Adelaide, SA, Australia, March 13-17, 2000
AIP Conf.Proc. 539 (2000) 66-72
10.1063/1.1330903
TRI-PP-00-18
hep-ph
null
Time-Reversal-Invariance non-conservation has for the first time been unequivocally demonstrated in a direct measurement, one of the results of the CPLEAR experiment. What is the situation then with regard to time-reversal-invariance non-conservation in systems other than the neutral kaon system? Two classes of tests...
[ { "created": "Wed, 10 May 2000 22:37:16 GMT", "version": "v1" } ]
2009-10-31
[ [ "van Oers", "Willem T. H.", "", "University of Manitoba, Canada" ] ]
Time-Reversal-Invariance non-conservation has for the first time been unequivocally demonstrated in a direct measurement, one of the results of the CPLEAR experiment. What is the situation then with regard to time-reversal-invariance non-conservation in systems other than the neutral kaon system? Two classes of tests o...
hep-ph/9711431
Peter Minkowski
P. Minkowski
Note on the Mass Square of the Eta' Meson
8 pages
Phys.Lett. B423 (1998) 157-161
10.1016/S0370-2693(98)00130-0
BUTP-97/35
hep-ph
null
We propose to use as a mathematical tool to study the mass square of the etaprime meson an infinitely heavy supplementary quark flavor Q. This is understood in the framework of QCD with one light quark flavor (or n_fl light flavors) and the gauge group SU3 colour (or SUN colour). The full system thus consists of n_fl...
[ { "created": "Mon, 24 Nov 1997 08:05:52 GMT", "version": "v1" } ]
2009-10-30
[ [ "Minkowski", "P.", "" ] ]
We propose to use as a mathematical tool to study the mass square of the etaprime meson an infinitely heavy supplementary quark flavor Q. This is understood in the framework of QCD with one light quark flavor (or n_fl light flavors) and the gauge group SU3 colour (or SUN colour). The full system thus consists of n_fl +...
1603.09152
Manjit Kaur Dr.
M. Kaur and Ruchi Gupta
Parton level study of high ET jets in hard QCD processes at LHC
5 pages
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Inclusive jet production will dominate the high $Q^{2}$ final states at the LHC.~In this work we try to estimate the up-to-date expectations, for high $E_{T}$ jets and their expected origin from the various parton-parton scattering processes. For these studies we have used a standard Parton Distribution Function (PDF...
[ { "created": "Wed, 30 Mar 2016 12:23:27 GMT", "version": "v1" } ]
2016-03-31
[ [ "Kaur", "M.", "" ], [ "Gupta", "Ruchi", "" ] ]
Inclusive jet production will dominate the high $Q^{2}$ final states at the LHC.~In this work we try to estimate the up-to-date expectations, for high $E_{T}$ jets and their expected origin from the various parton-parton scattering processes. For these studies we have used a standard Parton Distribution Function (PDF) ...
0804.1521
Stefano Morisi
M.Hirsch, S.Morisi and J.W.F.Valle
Tri-bimaximal neutrino mixing and neutrinoless double beta decay
4 pages and 3 figures
Phys.Rev.D78:093007,2008
10.1103/PhysRevD.78.093007
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a tri-bimaximal lepton mixing scheme where the neutrinoless double beta decay rate (bb0v) has a lower bound which correlates with the ratio alpha = Dmsol/Dmatm well determined by current data, as well as with the unknown Majorana CP phase phi12 characterizing the solar neutrino sub-system. For the special ...
[ { "created": "Wed, 9 Apr 2008 19:32:18 GMT", "version": "v1" } ]
2008-12-18
[ [ "Hirsch", "M.", "" ], [ "Morisi", "S.", "" ], [ "Valle", "J. W. F.", "" ] ]
We present a tri-bimaximal lepton mixing scheme where the neutrinoless double beta decay rate (bb0v) has a lower bound which correlates with the ratio alpha = Dmsol/Dmatm well determined by current data, as well as with the unknown Majorana CP phase phi12 characterizing the solar neutrino sub-system. For the special va...
hep-ph/0001139
Lynne Orr
Lynne H. Orr (Rochester) and W.J. Stirling (Durham)
BFKL Monte Carlo for Dijet Production at Hadron Colliders
3 pages including 2 figures, Latex, uses fleqn,epsfig,run2col; contribution to the proceedings of the Fermilab Run II Workshop, QCD and Weak Boson Physics
null
null
UR-1599
hep-ph
null
The production of jet pairs at large rapidity difference at hadron colliders is potentially sensitive to BFKL physics. We present the results of a BFKL Monte Carlo calculation of dijets at the Tevatron. The Monte Carlo incorporates kinematic effects that are absent in analytic BFKL calculations; these effects signifi...
[ { "created": "Fri, 14 Jan 2000 21:35:06 GMT", "version": "v1" } ]
2007-05-23
[ [ "Orr", "Lynne H.", "", "Rochester" ], [ "Stirling", "W. J.", "", "Durham" ] ]
The production of jet pairs at large rapidity difference at hadron colliders is potentially sensitive to BFKL physics. We present the results of a BFKL Monte Carlo calculation of dijets at the Tevatron. The Monte Carlo incorporates kinematic effects that are absent in analytic BFKL calculations; these effects significa...
1706.04598
Bhavesh Chauhan
Bhavesh Chauhan, Bharti Kindra, Ashish Narang
Discrepancies in simultaneous explanation of Flavor Anomalies and IceCube PeV Events using Leptoquarks
References updated; Conclusion Changed; Matches published version
Phys. Rev. D 97, 095007 (2018)
10.1103/PhysRevD.97.095007
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Leptoquarks have been suggested to solve a variety of discrepancies between the expected and observed phenomenon. In this paper, we show that the scalar doublet Leptoquark with Hypercharge 7/6 can simultaneously explain the recent measurement of $R_{K}$, $R_{K^*}$, the excess in anomalous magnetic moment of muon, and...
[ { "created": "Wed, 14 Jun 2017 17:32:11 GMT", "version": "v1" }, { "created": "Thu, 29 Jun 2017 07:40:16 GMT", "version": "v2" }, { "created": "Wed, 16 May 2018 08:10:55 GMT", "version": "v3" } ]
2018-05-23
[ [ "Chauhan", "Bhavesh", "" ], [ "Kindra", "Bharti", "" ], [ "Narang", "Ashish", "" ] ]
Leptoquarks have been suggested to solve a variety of discrepancies between the expected and observed phenomenon. In this paper, we show that the scalar doublet Leptoquark with Hypercharge 7/6 can simultaneously explain the recent measurement of $R_{K}$, $R_{K^*}$, the excess in anomalous magnetic moment of muon, and t...
1304.0202
Mikko Laine
M. Laine
Thermal 2-loop master spectral function at finite momentum
29 pages. v2: numerics improved; to appear in JHEP
null
10.1007/JHEP05(2013)083
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
When considering NLO corrections to thermal particle production in the "relativistic" regime, in which the invariant mass squared of the produced particle is K^2 ~ (pi T)^2, then the production rate can be expressed as a sum of a few universal "master" spectral functions. Taking the most complicated 2-loop master as ...
[ { "created": "Sun, 31 Mar 2013 13:07:19 GMT", "version": "v1" }, { "created": "Thu, 2 May 2013 07:03:41 GMT", "version": "v2" } ]
2015-06-15
[ [ "Laine", "M.", "" ] ]
When considering NLO corrections to thermal particle production in the "relativistic" regime, in which the invariant mass squared of the produced particle is K^2 ~ (pi T)^2, then the production rate can be expressed as a sum of a few universal "master" spectral functions. Taking the most complicated 2-loop master as an...
1303.2740
Yutaka Ookouchi
Kohei Kamada, Tatsuo Kobayashi, Keisuke Ohashi and Yutaka Ookouchi
Cosmic R-string in thermal history
28 pages, 11 figures, v2: references added
null
10.1007/JHEP05(2013)091
KUNS-2437, DESY 13-033, OCU-PHYS-381
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study stabilization of an unstable cosmic string associated with spontaneously broken $U(1)_R$ symmetry, which otherwise causes a dangerous roll-over process. We demonstrate that in a gauge mediation model, messengers can receive enough corrections from the thermal plasma of the supersymmetric standard model parti...
[ { "created": "Tue, 12 Mar 2013 01:17:27 GMT", "version": "v1" }, { "created": "Thu, 2 May 2013 05:50:53 GMT", "version": "v2" } ]
2015-06-15
[ [ "Kamada", "Kohei", "" ], [ "Kobayashi", "Tatsuo", "" ], [ "Ohashi", "Keisuke", "" ], [ "Ookouchi", "Yutaka", "" ] ]
We study stabilization of an unstable cosmic string associated with spontaneously broken $U(1)_R$ symmetry, which otherwise causes a dangerous roll-over process. We demonstrate that in a gauge mediation model, messengers can receive enough corrections from the thermal plasma of the supersymmetric standard model particl...
1207.0331
German Rodrigo
German Rodrigo
The ttbar asymmetry in the Standard Model and beyond
8 pages. Contribution to the proceedings of the 47th Renc\^ontres de Moriond, EW 2012 session
null
null
LPN12-074; IFIC/12-47
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A sizable charge asymmetry in top quark pair production has been observed at the Tevatron. The experimental results seem to exceed systematically the Standard Model theory predictions by a significant amount and have triggered a large number of suggestions for 'new physics'. The effect is also visible at the LHC, and...
[ { "created": "Mon, 2 Jul 2012 10:38:46 GMT", "version": "v1" } ]
2012-07-03
[ [ "Rodrigo", "German", "" ] ]
A sizable charge asymmetry in top quark pair production has been observed at the Tevatron. The experimental results seem to exceed systematically the Standard Model theory predictions by a significant amount and have triggered a large number of suggestions for 'new physics'. The effect is also visible at the LHC, and p...
hep-ph/0212325
Leutwyler
H. Leutwyler (University of Bern)
Strong Interactions at Low Energy
Lectures given at the school of physics "Understanding the structure of hadrons", Prague, July 2001, 20 pp
Czech.J.Phys. 52 (2002) B9-B27
10.1007/s10582-002-0077-1
null
hep-ph
null
The lectures review some of the basic concepts relevant for an understanding of the low energy properties of the strong interactions: chiral symmetry, spontaneous symmetry breakdown, Goldstone bosons, quark condensate. The effective field theory used to analyze the low energy structure is briefly sketched. As an illu...
[ { "created": "Fri, 20 Dec 2002 23:55:10 GMT", "version": "v1" } ]
2015-06-25
[ [ "Leutwyler", "H.", "", "University of Bern" ] ]
The lectures review some of the basic concepts relevant for an understanding of the low energy properties of the strong interactions: chiral symmetry, spontaneous symmetry breakdown, Goldstone bosons, quark condensate. The effective field theory used to analyze the low energy structure is briefly sketched. As an illust...
1012.1595
Mu-Chun Chen
Mu-Chun Chen, K.T. Mahanthappa
Models and Phenomenology of Neutrino Masses circa 2010
Plenary Talk presented at the XXIV International Conference on Neutrino Physics and Astrophysics (Neutrino 2010), Athens, Greece, June 14-19, 2010; v2: content expanded; 5 pages, no figure
null
null
COLO-HEP-560; UCI-TR-2010-32
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We review recent developments in models of neutrino masses and mixing. Emphases are given to models based on finite group family symmetries from which the tri-bimaximal neutrino mixing can arise. In particular, we describe one recent model based on SUSY SU(5) combined with a family symmetry based on the double tetrah...
[ { "created": "Tue, 7 Dec 2010 21:00:00 GMT", "version": "v1" }, { "created": "Thu, 9 Dec 2010 18:56:30 GMT", "version": "v2" } ]
2015-03-17
[ [ "Chen", "Mu-Chun", "" ], [ "Mahanthappa", "K. T.", "" ] ]
We review recent developments in models of neutrino masses and mixing. Emphases are given to models based on finite group family symmetries from which the tri-bimaximal neutrino mixing can arise. In particular, we describe one recent model based on SUSY SU(5) combined with a family symmetry based on the double tetrahed...
hep-ph/9509219
Jakub Rembielinski
J. Rembielinski
Quantization of the tachyonic field and the preferred frame
LaTeX2e or Latex 2.09, 24pp.; 2 references added, formulae (26), (27), (31) corrected
null
null
null
hep-ph gr-qc hep-th
null
A consistent quantization scheme for imaginary-mass field is proposed. It is related to an appropriate choice of the synchronization procedure (definition of time), which guarantee an absolute causality in agreement with Lorentz covariance. In that formulation a possible existence of field excitations (tachyons) dist...
[ { "created": "Mon, 4 Sep 1995 20:45:26 GMT", "version": "v1" }, { "created": "Fri, 15 Sep 1995 18:18:01 GMT", "version": "v2" } ]
2008-02-03
[ [ "Rembielinski", "J.", "" ] ]
A consistent quantization scheme for imaginary-mass field is proposed. It is related to an appropriate choice of the synchronization procedure (definition of time), which guarantee an absolute causality in agreement with Lorentz covariance. In that formulation a possible existence of field excitations (tachyons) distin...
hep-ph/0208114
Michael Luke
Aida X. El-Khadra and Michael Luke
The Mass of the b Quark
54 pages, 5 figures. With permission from the Annual Review of Nuclear & Particle Science. Final version of this material is scheduled to appear in the Annual Review of Nuclear & Particle Science, Vol. 52, to be published in December 2002 by Annual Reviews (http://AnnualReviews.org)
Ann.Rev.Nucl.Part.Sci.52:201-251,2002
10.1146/annurev.nucl.52.050102.090710
null
hep-ph
null
We review the current status of determinations of the b-quark mass, m_b. We describe the theoretical tools required for determining m_b, with particular emphasis on effective field theories both in the continuum and on the lattice. We present several definitions of m_b and highlight their advantages and disadvantages...
[ { "created": "Mon, 12 Aug 2002 19:22:29 GMT", "version": "v1" } ]
2008-11-26
[ [ "El-Khadra", "Aida X.", "" ], [ "Luke", "Michael", "" ] ]
We review the current status of determinations of the b-quark mass, m_b. We describe the theoretical tools required for determining m_b, with particular emphasis on effective field theories both in the continuum and on the lattice. We present several definitions of m_b and highlight their advantages and disadvantages. ...
hep-ph/0001212
Passarino Giampiero
G. Passarino (Turin Univ. and INFN Turin)
Single-W Production and Fermion-Loop Scheme: Numerical Results
27 pages(Latex), 7 figures
Nucl.Phys. B578 (2000) 3-26
10.1016/S0550-3213(00)00172-3
null
hep-ph hep-ex
null
The single-W production mechanism is synonymous to the electron-positron annihilation into electron, neutrino and a W boson with the outgoing electron lost in a small cone around the beam direction. It requires a Renormalization Scheme that preserves gauge invariance and fermion masses cannot be neglected in the calc...
[ { "created": "Thu, 20 Jan 2000 14:53:20 GMT", "version": "v1" } ]
2009-10-31
[ [ "Passarino", "G.", "", "Turin Univ. and INFN Turin" ] ]
The single-W production mechanism is synonymous to the electron-positron annihilation into electron, neutrino and a W boson with the outgoing electron lost in a small cone around the beam direction. It requires a Renormalization Scheme that preserves gauge invariance and fermion masses cannot be neglected in the calcul...
1502.05409
Daniel Stolarski
Pedro Schwaller, Daniel Stolarski, and Andreas Weiler
Emerging Jets
45 pages, 22 figures. v2: Typos fixed. v3: Minor modifications, references added, version accepted in JHEP. Supplementary code can be found at github.com/pedroschwaller/EmergingJets
null
10.1007/JHEP05(2015)059
CERN-PH-TH-2015-031, DESY 15-026
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, we propose a novel search strategy for new physics at the LHC that utilizes calorimeter jets that (i) are composed dominantly of displaced tracks and (ii) have many different vertices within the jet cone. Such emerging jet signatures are smoking guns for models with a composite dark sector where a parto...
[ { "created": "Wed, 18 Feb 2015 21:00:15 GMT", "version": "v1" }, { "created": "Tue, 24 Feb 2015 14:04:15 GMT", "version": "v2" }, { "created": "Mon, 11 May 2015 08:02:07 GMT", "version": "v3" } ]
2015-05-19
[ [ "Schwaller", "Pedro", "" ], [ "Stolarski", "Daniel", "" ], [ "Weiler", "Andreas", "" ] ]
In this work, we propose a novel search strategy for new physics at the LHC that utilizes calorimeter jets that (i) are composed dominantly of displaced tracks and (ii) have many different vertices within the jet cone. Such emerging jet signatures are smoking guns for models with a composite dark sector where a parton ...
1605.09378
Antonio Racioppi
Kristjan Kannike, Antonio Racioppi and Martti Raidal
Super-Heavy Dark Matter - Towards Predictive Scenarios from Inflation
10 pages, 4 figures. Matches the published version on NPB
Nuclear Physics B 918 (2017) 162-177
10.1016/j.nuclphysb.2017.02.019
null
hep-ph astro-ph.CO gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A generic prediction of the Coleman-Weinberg inflation is the existence of a heavy particle sector whose interactions with the inflaton, the lightest state in this sector, generate the inflaton potential at loop level. For typical interactions the heavy sector may contain stable states whose relic abundance is genera...
[ { "created": "Mon, 30 May 2016 20:00:01 GMT", "version": "v1" }, { "created": "Fri, 17 Mar 2017 15:24:53 GMT", "version": "v2" } ]
2017-03-20
[ [ "Kannike", "Kristjan", "" ], [ "Racioppi", "Antonio", "" ], [ "Raidal", "Martti", "" ] ]
A generic prediction of the Coleman-Weinberg inflation is the existence of a heavy particle sector whose interactions with the inflaton, the lightest state in this sector, generate the inflaton potential at loop level. For typical interactions the heavy sector may contain stable states whose relic abundance is generate...
2206.05965
Zhan Sun
Xuan Luo, Ying-Zhao Jiang, Gui-Yuan Zhang, and Zhan Sun
Doubly-charmed baryon production in $Z$ boson decay
v1: 14pages, 2 figures, and 1 table; v2: references added
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
In this paper, we carry out a detailed study of doubly-charmed baryon production in $Z$ boson decay, on the basis of the nonrelativistic QCD factorization. With the inclusion of the di-quark states $(cc)[^3S_1]_{\bar{\textbf{3}}}$ and $(cc)[^1S_0]_{{\textbf{6}}}$, the branching ratio of $\mathcal{B}_{Z \to \Xi_{cc}+X...
[ { "created": "Mon, 13 Jun 2022 08:25:38 GMT", "version": "v1" }, { "created": "Tue, 14 Jun 2022 12:16:35 GMT", "version": "v2" } ]
2022-06-15
[ [ "Luo", "Xuan", "" ], [ "Jiang", "Ying-Zhao", "" ], [ "Zhang", "Gui-Yuan", "" ], [ "Sun", "Zhan", "" ] ]
In this paper, we carry out a detailed study of doubly-charmed baryon production in $Z$ boson decay, on the basis of the nonrelativistic QCD factorization. With the inclusion of the di-quark states $(cc)[^3S_1]_{\bar{\textbf{3}}}$ and $(cc)[^1S_0]_{{\textbf{6}}}$, the branching ratio of $\mathcal{B}_{Z \to \Xi_{cc}+X}$...
1911.03370
Babak Salehi Kasmaei
Babak Salehi Kasmaei and Michael Strickland
Photon production and elliptic flow from momentum-anisotropic quark-gluon plasma
19 pages, 10 figures
Phys. Rev. D 102, 014037 (2020)
10.1103/PhysRevD.102.014037
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The emission of real photons from a momentum-anisotropic quark-gluon plasma (QGP) is affected by both the collective flow of the radiating medium and the modification of local rest frame emission rate due to the anisotropic momentum distribution of partonic degrees of freedom. In this paper, we first calculate the ph...
[ { "created": "Fri, 8 Nov 2019 16:51:05 GMT", "version": "v1" } ]
2020-07-29
[ [ "Kasmaei", "Babak Salehi", "" ], [ "Strickland", "Michael", "" ] ]
The emission of real photons from a momentum-anisotropic quark-gluon plasma (QGP) is affected by both the collective flow of the radiating medium and the modification of local rest frame emission rate due to the anisotropic momentum distribution of partonic degrees of freedom. In this paper, we first calculate the phot...
1207.6390
Bhubanjyoti Bhattacharya
Bhubanjyoti Bhattacharya, Michael Gronau, Jonathan L. Rosner
Nonleptonic Charm Decays and CP Violation
16 pages, 5 figures, to appear in the proceedings of The 5th International Workshop on Charm Physics (Charm 2012), 14-17 May 2012, Honolulu, Hawai'i 96822
null
null
UdeM-GPP-TH-12-211; EFI 12-19; TECHNION-PH-12-11
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this talk we briefly present a flavor-SU(3) technique to study branching ratios and direct CP asymmetries $D$-meson decays. The first part of the talk is meant to set up a foundation, based on previous work, to deal with flavor-SU(3) amplitudes and relative strong phases. In addition, we present a model for dealin...
[ { "created": "Thu, 26 Jul 2012 19:55:33 GMT", "version": "v1" }, { "created": "Sun, 5 Aug 2012 23:24:24 GMT", "version": "v2" } ]
2012-08-07
[ [ "Bhattacharya", "Bhubanjyoti", "" ], [ "Gronau", "Michael", "" ], [ "Rosner", "Jonathan L.", "" ] ]
In this talk we briefly present a flavor-SU(3) technique to study branching ratios and direct CP asymmetries $D$-meson decays. The first part of the talk is meant to set up a foundation, based on previous work, to deal with flavor-SU(3) amplitudes and relative strong phases. In addition, we present a model for dealing ...
hep-ph/9501257
Yong Yeon Keum
M. Gourdin, Y. Y. Keum and X. Y. Pham
Factorization and SU(2) Heavy Flavor Symmetry for B-Meson Decays Producing Charmonium
35 pages ( Latex ) with 10 figures (available by request)
Phys.Rev. D52 (1995) 1597-1613
10.1103/PhysRevD.52.1597
PAR/LPTHE/95-01
hep-ph
null
We show that the factorization assumption in color-suppressed $B$ meson decays is not ruled out by experimental data on $B \ra K(K^*) + J/\Psi(\Psi^{'})$. The problem previously pointed out might be due to an inadequate choice of hadronic form factors. Within the Isgur-Wise SU(2) heavy flavor symmetry framework, we s...
[ { "created": "Tue, 10 Jan 1995 16:32:44 GMT", "version": "v1" } ]
2016-09-01
[ [ "Gourdin", "M.", "" ], [ "Keum", "Y. Y.", "" ], [ "Pham", "X. Y.", "" ] ]
We show that the factorization assumption in color-suppressed $B$ meson decays is not ruled out by experimental data on $B \ra K(K^*) + J/\Psi(\Psi^{'})$. The problem previously pointed out might be due to an inadequate choice of hadronic form factors. Within the Isgur-Wise SU(2) heavy flavor symmetry framework, we sea...
2204.04805
Lingfeng Li
JiJi Fan, Lingfeng Li, Tao Liu, Kun-Feng Lyu
$W$-Boson Mass, Electroweak Precision Tests and SMEFT
8 pages, 3 figures, version accepted by PRD for publication
null
10.1103/PhysRevD.106.073010
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recently the CDF collaboration at the Tevatron reported a significant discrepancy between the direct measurement of the $W$-boson mass and its Standard Model (SM) prediction based on electroweak precision tests (EWPTs). In this paper we explore the potential origin of this discrepancy from physics beyond the SM. Expl...
[ { "created": "Mon, 11 Apr 2022 00:31:30 GMT", "version": "v1" }, { "created": "Tue, 1 Nov 2022 21:57:41 GMT", "version": "v2" } ]
2022-11-09
[ [ "Fan", "JiJi", "" ], [ "Li", "Lingfeng", "" ], [ "Liu", "Tao", "" ], [ "Lyu", "Kun-Feng", "" ] ]
Recently the CDF collaboration at the Tevatron reported a significant discrepancy between the direct measurement of the $W$-boson mass and its Standard Model (SM) prediction based on electroweak precision tests (EWPTs). In this paper we explore the potential origin of this discrepancy from physics beyond the SM. Explic...
1710.02719
Dmitri Melikhov
Dmitri Melikhov, Anastasiia Kozachuk, Nikolai Nikitin
Rare FCNC radiative leptonic decays $B\to\gamma\ell^+\ell^-$
6 pages, talk given at "The European Physical Society Conference on High Energy Physics - EPS-HEP 2017" (5 - 12 July 2017, Venice, Italy)
PoS (EPS-HEP2017) 228
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present our recent results for long-distance QCD effects in the FCNC radiative leptonic decays $B\to\gamma\ell^+\ell^-$, $\ell=\{e,\mu\}$. One encounters here two distinct types of long-distance effects: those encoded in the $B\to\gamma$ transition form factors induced by the $b\to q$ quark currents, and those rel...
[ { "created": "Sat, 7 Oct 2017 18:46:59 GMT", "version": "v1" } ]
2017-10-10
[ [ "Melikhov", "Dmitri", "" ], [ "Kozachuk", "Anastasiia", "" ], [ "Nikitin", "Nikolai", "" ] ]
We present our recent results for long-distance QCD effects in the FCNC radiative leptonic decays $B\to\gamma\ell^+\ell^-$, $\ell=\{e,\mu\}$. One encounters here two distinct types of long-distance effects: those encoded in the $B\to\gamma$ transition form factors induced by the $b\to q$ quark currents, and those relat...
1511.06039
Simone Marzani
Simone Marzani
Combining $Q_T$ and small-$x$ resummations
Corrected a mistake in Eq.(40)
Phys. Rev. D 93, 054047 (2016)
10.1103/PhysRevD.93.054047
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze transverse momentum ($Q_T$) resummation of a colorless final state, e.g. Higgs production in gluon fusion or the production of a lepton pair via the Drell-Yan mechanism, in the limit where the invariant mass of the final state is much less then the center-of-mass energy, i.e. $Q^2\ll s$. We show how the tr...
[ { "created": "Thu, 19 Nov 2015 01:28:05 GMT", "version": "v1" }, { "created": "Thu, 24 Mar 2016 16:37:13 GMT", "version": "v2" }, { "created": "Sat, 12 Nov 2016 15:42:23 GMT", "version": "v3" }, { "created": "Fri, 11 Dec 2020 09:56:27 GMT", "version": "v4" } ]
2020-12-14
[ [ "Marzani", "Simone", "" ] ]
We analyze transverse momentum ($Q_T$) resummation of a colorless final state, e.g. Higgs production in gluon fusion or the production of a lepton pair via the Drell-Yan mechanism, in the limit where the invariant mass of the final state is much less then the center-of-mass energy, i.e. $Q^2\ll s$. We show how the trad...
hep-ph/9407232
Dietrich Lehner
D. Lehner
Initial State Radiation to Off-shell $\Z^0$ Pair Production in $e^+e^-$ Annihilation
6 pages (LaTeX), 2 figures (not included, a uuencoded file containing the LaTeX and all postscript files is available via anonymous ftp from convex.ifh.de as /pub/preprint/desy94-105.uu), DESY 94-105
Mod. Phys. Lett. A9 (1994) 2937
10.1142/S021773239400277X
null
hep-ph
null
A study of the Standard Model reaction $\e^+e^- \rightarrow (\Z^0\Z^0) \rightarrow f_1\bar{f_1}f_2\bar{f_2}$ including the effects of the finite $\Z^0$~width and initial state radiative corrections is presented. All angular phase space integrations are performed analytically. The remaining invariant masses are integr...
[ { "created": "Tue, 5 Jul 1994 19:26:21 GMT", "version": "v1" } ]
2015-06-25
[ [ "Lehner", "D.", "" ] ]
A study of the Standard Model reaction $\e^+e^- \rightarrow (\Z^0\Z^0) \rightarrow f_1\bar{f_1}f_2\bar{f_2}$ including the effects of the finite $\Z^0$~width and initial state radiative corrections is presented. All angular phase space integrations are performed analytically. The remaining invariant masses are integrat...