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hep-ph/0608001
Jean-Marc Richard
Franco Buccella, Hallstein Hogaasen, Jean-Marc Richard, Paul Sorba
Chromomagnetism, flavour symmetry breaking and S-wave tetraquarks
16 pages, 2 figures, RevTeX, Refs. updated, further typos corrected, to appear in EPJC
Eur.Phys.J.C49:743-754,2007
10.1140/epjc/s10052-006-0142-1
DSF/13(2006), LAPTH-1150/06,LPSC-06-37
hep-ph
null
The chromomagnetic interaction, with full account for flavour-symmetry breaking, is applied to S-wave configurations containing two quarks and two antiquarks. Phenomenological implications are discussed for light, charmed, charmed and strange, hidden-charm and double-charm mesons, and extended to their analogues with...
[ { "created": "Tue, 1 Aug 2006 07:51:33 GMT", "version": "v1" }, { "created": "Mon, 7 Aug 2006 05:35:53 GMT", "version": "v2" }, { "created": "Tue, 10 Oct 2006 10:36:53 GMT", "version": "v3" }, { "created": "Sat, 20 Jan 2007 08:00:10 GMT", "version": "v4" } ]
2008-11-26
[ [ "Buccella", "Franco", "" ], [ "Hogaasen", "Hallstein", "" ], [ "Richard", "Jean-Marc", "" ], [ "Sorba", "Paul", "" ] ]
The chromomagnetic interaction, with full account for flavour-symmetry breaking, is applied to S-wave configurations containing two quarks and two antiquarks. Phenomenological implications are discussed for light, charmed, charmed and strange, hidden-charm and double-charm mesons, and extended to their analogues with b...
hep-ph/9909237
Spencer Klein
Spencer R. Klein and Joakim Nystrand
Interference in Exclusive Vector Meson Production in Heavy Ion Collisions
13 pages with 3 figures; submitted to Physical Review Letters
Phys.Rev.Lett.84:2330-2333,2000
10.1103/PhysRevLett.84.2330
LBNL-PUB-43907
hep-ph nucl-th quant-ph
null
Photons emitted from the electromagnetic fields of relativistic heavy ions can fluctuate into quark anti-quark pairs and scatter from a target nucleus, emerging as vector mesons. These coherent interactions are identifiable by final states consisting of the two nuclei and a vector meson with a small transverse moment...
[ { "created": "Fri, 3 Sep 1999 01:42:38 GMT", "version": "v1" } ]
2014-11-17
[ [ "Klein", "Spencer R.", "" ], [ "Nystrand", "Joakim", "" ] ]
Photons emitted from the electromagnetic fields of relativistic heavy ions can fluctuate into quark anti-quark pairs and scatter from a target nucleus, emerging as vector mesons. These coherent interactions are identifiable by final states consisting of the two nuclei and a vector meson with a small transverse momentum...
2405.18990
Sarah Alanazi
A.G. Akeroyd, S. Alanazi and S. Moretti
The Process $gg\to h^0 Z^{*}$ in the Inverted Hierarchy Scenario of the 2HDM Type-I at the LHC
19 pages, 7 figures. arXiv admin note: text overlap with arXiv:2301.00728
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
While searching at the Large Hadron Collider (LHC) for the production and decay of the CP-odd scalar ($A^0$) in the 2-Higgs-Doublet Model (2HDM) with Natural Flavour Conservation (NFC) via the channels $gg\to A^0$ (through one-loop triangle diagrams) and $A^0\to h^0 Z^*$ (with $m_{h^0} =125$ GeV or $m_{h^0} < 125$ Ge...
[ { "created": "Wed, 29 May 2024 11:10:06 GMT", "version": "v1" } ]
2024-05-30
[ [ "Akeroyd", "A. G.", "" ], [ "Alanazi", "S.", "" ], [ "Moretti", "S.", "" ] ]
While searching at the Large Hadron Collider (LHC) for the production and decay of the CP-odd scalar ($A^0$) in the 2-Higgs-Doublet Model (2HDM) with Natural Flavour Conservation (NFC) via the channels $gg\to A^0$ (through one-loop triangle diagrams) and $A^0\to h^0 Z^*$ (with $m_{h^0} =125$ GeV or $m_{h^0} < 125$ GeV,...
2406.03540
Marc Riembau
Timothy Cohen, Marc Riembau
Recursion for Wilson-line Form Factors
28 pages + appendix
null
null
CERN-TH-2024-069
hep-ph hep-th
http://creativecommons.org/licenses/by/4.0/
Matrix elements of Wilson-line dressed operators play a central role in the factorization of soft and collinear modes in gauge theories. When expressed using spinor helicity variables, these so-called form factors admit a classification starting from a Maximally Helicity Violating configuration, in close analogy with...
[ { "created": "Wed, 5 Jun 2024 18:00:03 GMT", "version": "v1" } ]
2024-06-07
[ [ "Cohen", "Timothy", "" ], [ "Riembau", "Marc", "" ] ]
Matrix elements of Wilson-line dressed operators play a central role in the factorization of soft and collinear modes in gauge theories. When expressed using spinor helicity variables, these so-called form factors admit a classification starting from a Maximally Helicity Violating configuration, in close analogy with g...
hep-ph/0106260
Yuji Koike
Yuji Koike (Niigata Univ.)
Single-spin asymmetries and soft-gluon poles
Talk presented at the conference DIS2001 held at Bologna, Italy from April 27 to May 1, 2001. 4 pages with 2 figures in Latex
null
10.1142/9789812778345_0090
null
hep-ph
null
Mechanism for the single transverse spin asymmeties in the pion production, p^\uparrow + p'\to \pi(\ell_T) + X, and the \Lambda hyperon polarization, p + p' \to \Lambda^\uparrow (\ell_T)+ X, is investigated in the framework of QCD factorization theorem. We identify all the soft-gluon pole contributions coming from th...
[ { "created": "Sat, 23 Jun 2001 04:27:47 GMT", "version": "v1" } ]
2015-06-25
[ [ "Koike", "Yuji", "", "Niigata Univ." ] ]
Mechanism for the single transverse spin asymmeties in the pion production, p^\uparrow + p'\to \pi(\ell_T) + X, and the \Lambda hyperon polarization, p + p' \to \Lambda^\uparrow (\ell_T)+ X, is investigated in the framework of QCD factorization theorem. We identify all the soft-gluon pole contributions coming from the ...
hep-ph/9709427
Giovanni Ridolfi
G. Ridolfi (INFN Genoa, Italy)
Heavy quark production: recent developments
5 pages Latex, uses epsfig.sty,aipproc.sty, 7 eps figures included. Talk given at the 5th International Workshop on Deep Inelastic Scattering and QCD (DIS 97), Chicago, IL, 14-18 Apr 1997
null
10.1063/1.53736
null
hep-ph
null
I discuss some aspects of the comparison between QCD predictions and experimental data in charm and bottom production.
[ { "created": "Tue, 23 Sep 1997 12:22:20 GMT", "version": "v1" } ]
2009-10-30
[ [ "Ridolfi", "G.", "", "INFN Genoa, Italy" ] ]
I discuss some aspects of the comparison between QCD predictions and experimental data in charm and bottom production.
2009.01917
Ahmad Hoseinpour
Hassan Manshouri, Ahmad Hoseinpour and Moslem Zarei
Quantum Boltzmann equation for fermions: An attempt to calculate the NMR relaxation and decoherence times using quantum field theory techniques
20 pages, 5 figures
Phys. Rev. D 103, 096020 (2021)
10.1103/PhysRevD.103.096020
null
hep-ph cond-mat.quant-gas quant-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Extracting macroscopic properties of a system from microscopic interactions has always been an interesting topic with the most diverse applications. Here, we use the quantum Boltzmann equation to investigate the density matrix evolution of a system of nucleons. Using the quantum field theory tools for constructing th...
[ { "created": "Thu, 3 Sep 2020 20:41:49 GMT", "version": "v1" }, { "created": "Tue, 22 Sep 2020 18:07:08 GMT", "version": "v2" }, { "created": "Sat, 12 Jun 2021 07:19:13 GMT", "version": "v3" } ]
2021-06-15
[ [ "Manshouri", "Hassan", "" ], [ "Hoseinpour", "Ahmad", "" ], [ "Zarei", "Moslem", "" ] ]
Extracting macroscopic properties of a system from microscopic interactions has always been an interesting topic with the most diverse applications. Here, we use the quantum Boltzmann equation to investigate the density matrix evolution of a system of nucleons. Using the quantum field theory tools for constructing the ...
hep-ph/9412204
Vadim Zeitlin
Vadim Zeitlin (P.N.Lebedev Physical Institute)
Low-Temperature QED with External Magnetic Field
9 pages, LaTeX
null
null
FIAN/TD/94-10
hep-ph cond-mat
null
Low-temperature expansion of the effective Lagrangian of the QED$_{3+1}$ with a uniform magnetic field and a finite chemical potential is performed. Temperature corrections, as well as zero-temperature expression for the effective Lagrangian are presented as finite sums over partially filled Landau levels.
[ { "created": "Thu, 1 Dec 1994 12:41:05 GMT", "version": "v1" } ]
2007-05-23
[ [ "Zeitlin", "Vadim", "", "P.N.Lebedev Physical Institute" ] ]
Low-temperature expansion of the effective Lagrangian of the QED$_{3+1}$ with a uniform magnetic field and a finite chemical potential is performed. Temperature corrections, as well as zero-temperature expression for the effective Lagrangian are presented as finite sums over partially filled Landau levels.
0712.3193
Ivanov Dmitry
D.Yu. Ivanov
Exclusive vector meson electroproduction
7 pages; Talk given at 12th International Conference on Elastic and Diffractive Scattering: Forward Physics and QCD, Hamburg, DESY, Germany, 21-25 May 2007
null
null
null
hep-ph
null
We discuss exclusive vector meson electroproduction within the QCD collinear factorization framework. In Bjorken kinematics the amplitude factorizes in a convolution of the nonperturbative meson distribution amplitude and the generalized parton densities with the perturbatively calculable hard-scattering amplitudes, ...
[ { "created": "Wed, 19 Dec 2007 14:29:32 GMT", "version": "v1" } ]
2007-12-20
[ [ "Ivanov", "D. Yu.", "" ] ]
We discuss exclusive vector meson electroproduction within the QCD collinear factorization framework. In Bjorken kinematics the amplitude factorizes in a convolution of the nonperturbative meson distribution amplitude and the generalized parton densities with the perturbatively calculable hard-scattering amplitudes, wh...
2311.02149
Xucheng Gan
Xucheng Gan, Lian-Tao Wang, Huangyu Xiao
Detecting Axion Dark Matter with Black Hole Polarimetry
13 pages, 4 appendices, 3 figures
null
null
FERMILAB-PUB-23-635-T
hep-ph astro-ph.CO astro-ph.GA astro-ph.HE
http://creativecommons.org/licenses/by/4.0/
The axion, as a leading dark matter candidate, is the target of many on-going and proposed experimental searches based on its coupling to photons. Ultralight axions that couple to photons can also cause polarization rotation of light which can be probed by cosmic microwave background. In this work, we show that a lar...
[ { "created": "Fri, 3 Nov 2023 18:00:00 GMT", "version": "v1" } ]
2023-11-07
[ [ "Gan", "Xucheng", "" ], [ "Wang", "Lian-Tao", "" ], [ "Xiao", "Huangyu", "" ] ]
The axion, as a leading dark matter candidate, is the target of many on-going and proposed experimental searches based on its coupling to photons. Ultralight axions that couple to photons can also cause polarization rotation of light which can be probed by cosmic microwave background. In this work, we show that a large...
hep-ph/0408193
Adriano Gomes doff
A. Doff and A. A. Natale
A dynamical mechanism to explain the top-bottom quark mass hierarchy
Changes are made in sections I, II and IV; an new figure added; results unchanged; accepted for publication in Int. J. Mod. Phys. A
Int.J.Mod.Phys.A20:7567-7578,2005
10.1142/S0217751X05021269
null
hep-ph
null
We discuss the mass splitting between the the top and bottom quarks in a technicolor scenario. The model proposed here contains a left-right electroweak gauge group. An extended technicolor group and mirror fermions are introduced. The top-bottom quark mass splitting turns out to be intimately connected to the breaki...
[ { "created": "Tue, 17 Aug 2004 19:09:36 GMT", "version": "v1" }, { "created": "Wed, 18 Aug 2004 18:20:49 GMT", "version": "v2" }, { "created": "Tue, 21 Sep 2004 02:48:38 GMT", "version": "v3" }, { "created": "Thu, 20 Jan 2005 12:13:54 GMT", "version": "v4" } ]
2011-01-27
[ [ "Doff", "A.", "" ], [ "Natale", "A. A.", "" ] ]
We discuss the mass splitting between the the top and bottom quarks in a technicolor scenario. The model proposed here contains a left-right electroweak gauge group. An extended technicolor group and mirror fermions are introduced. The top-bottom quark mass splitting turns out to be intimately connected to the breaking...
2305.02682
Luca Paolo Wiggering
Luca Paolo Wiggering
Radiative corrections to stop-antistop annihilation
4 pages, 3 figures, contribution to the 2023 Electroweak session of the 57th Rencontres de Moriond
null
null
MS-TP-23-17
hep-ph
http://creativecommons.org/licenses/by/4.0/
We compute the full $\mathcal{O}(\alpha_s)$ corrections to stop-antistop annihilation into two gluons and a light quark-antiquark pair within the framework of the Minimal Supersymmetric Standard Model (MSSM), including the non-perturbative Sommerfeld enhancement effect. Numerical results for the total annihilation cr...
[ { "created": "Thu, 4 May 2023 09:53:48 GMT", "version": "v1" } ]
2023-05-05
[ [ "Wiggering", "Luca Paolo", "" ] ]
We compute the full $\mathcal{O}(\alpha_s)$ corrections to stop-antistop annihilation into two gluons and a light quark-antiquark pair within the framework of the Minimal Supersymmetric Standard Model (MSSM), including the non-perturbative Sommerfeld enhancement effect. Numerical results for the total annihilation cros...
2102.05124
Taegyun Kim
Taegyun Kim and Adam Martin
A $W^\pm$ polarization analyzer from Deep Neural Networks
null
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, we train a Convolutional Neural Network to classify longitudinally and transversely polarized hadronic $W^\pm$ using the images of boosted $W^{\pm}$ jets as input. The images capture angular and energy information from the jet constituents that is faithful to properties of the original quark/anti-quark...
[ { "created": "Tue, 9 Feb 2021 20:49:13 GMT", "version": "v1" } ]
2021-02-11
[ [ "Kim", "Taegyun", "" ], [ "Martin", "Adam", "" ] ]
In this paper, we train a Convolutional Neural Network to classify longitudinally and transversely polarized hadronic $W^\pm$ using the images of boosted $W^{\pm}$ jets as input. The images capture angular and energy information from the jet constituents that is faithful to properties of the original quark/anti-quark $...
1801.10244
Takahiro Morishima
Takahiro Morishima, Toshifumi Futamase, Hirohiko M. Shimizu
The general relativistic effects to the magnetic moment in the Earth's gravity
This is a revised version of arXiv:1801.10244. Our three submitted papers of series (arXiv:1801.10244, arXiv:1801.10245, arXiv:1801.10246) are combined into a single paper
Prog. Theor. Exp. Phys. 063B07 (2018)
10.1093/ptep/pty066
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The magnetic moment of free fermions in the Earth's gravitational field has been studied on the basis of the general relativity. Adopting the Schwarzschild metric for the background spacetime, the dipole coupling between the magnetic moment and the magnetic field has been found to be dependent of the gravity in the c...
[ { "created": "Tue, 30 Jan 2018 22:29:34 GMT", "version": "v1" }, { "created": "Tue, 27 Mar 2018 09:28:04 GMT", "version": "v2" }, { "created": "Thu, 17 May 2018 05:47:12 GMT", "version": "v3" } ]
2018-07-02
[ [ "Morishima", "Takahiro", "" ], [ "Futamase", "Toshifumi", "" ], [ "Shimizu", "Hirohiko M.", "" ] ]
The magnetic moment of free fermions in the Earth's gravitational field has been studied on the basis of the general relativity. Adopting the Schwarzschild metric for the background spacetime, the dipole coupling between the magnetic moment and the magnetic field has been found to be dependent of the gravity in the cal...
2308.14438
Peiwen Wu
Chengcheng Han, Peiwen Wu, Jin Min Yang, Mengchao Zhang
Freeze-in bino dark matter in high scale supersymmetry
23 pages, 4 figures, revised version accepted by Physical Review D for publication
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We explore a scenario of high scale supersymmetry where all supersymmetric particles except gauginos stay at a high energy scale $M_{\rm SUSY}$ which is much larger than the reheating temperature $T_\text{RH}$. The dark matter is dominated by bino component with mass around the electroweak scale and the observed reli...
[ { "created": "Mon, 28 Aug 2023 09:24:11 GMT", "version": "v1" }, { "created": "Fri, 8 Dec 2023 08:36:15 GMT", "version": "v2" } ]
2023-12-11
[ [ "Han", "Chengcheng", "" ], [ "Wu", "Peiwen", "" ], [ "Yang", "Jin Min", "" ], [ "Zhang", "Mengchao", "" ] ]
We explore a scenario of high scale supersymmetry where all supersymmetric particles except gauginos stay at a high energy scale $M_{\rm SUSY}$ which is much larger than the reheating temperature $T_\text{RH}$. The dark matter is dominated by bino component with mass around the electroweak scale and the observed relic ...
2212.06491
Steven Cotterill
R. A. Battye, S. J. Cotterill
Pinching instabilities in superconducting strings
14 pages, 7 figures
null
10.1103/PhysRevD.107.063534
null
hep-ph astro-ph.CO hep-th
http://creativecommons.org/licenses/by/4.0/
Superconducting cosmic strings can exhibit longitudinal, pinching instabilities in some regions of the parameter space. We make predictions about the onset of this instability using the thin string approximation (TSA) and develop an improved analysis that remains applicable for small wavelength perturbations, where t...
[ { "created": "Tue, 13 Dec 2022 11:17:02 GMT", "version": "v1" } ]
2023-03-29
[ [ "Battye", "R. A.", "" ], [ "Cotterill", "S. J.", "" ] ]
Superconducting cosmic strings can exhibit longitudinal, pinching instabilities in some regions of the parameter space. We make predictions about the onset of this instability using the thin string approximation (TSA) and develop an improved analysis that remains applicable for small wavelength perturbations, where the...
0911.2242
Rabindra N. Mohapatra
Bhaskar Dutta, Yukihiro Mimura and R.N. Mohapatra
An SO(10) Grand Unified Theory of Flavor
Final version of the paper as it will appear in JHEP.
JHEP 1005:034,2010
10.1007/JHEP05(2010)034
MIFP-09-45, UMD-PP-09-059
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a supersymmetric SO(10) grand unified theory (GUT) of flavor based on an $S_4$ family symmetry. It makes use of our recent proposal to use SO(10) with type II seesaw mechanism for neutrino masses combined with a simple ansatz that the dominant Yukawa matrix (the {\bf 10}-Higgs coupling to matter) has rank ...
[ { "created": "Wed, 11 Nov 2009 21:10:47 GMT", "version": "v1" }, { "created": "Thu, 17 Dec 2009 19:33:19 GMT", "version": "v2" }, { "created": "Sun, 25 Apr 2010 17:52:47 GMT", "version": "v3" } ]
2010-05-28
[ [ "Dutta", "Bhaskar", "" ], [ "Mimura", "Yukihiro", "" ], [ "Mohapatra", "R. N.", "" ] ]
We present a supersymmetric SO(10) grand unified theory (GUT) of flavor based on an $S_4$ family symmetry. It makes use of our recent proposal to use SO(10) with type II seesaw mechanism for neutrino masses combined with a simple ansatz that the dominant Yukawa matrix (the {\bf 10}-Higgs coupling to matter) has rank on...
1506.06128
Igor M. Suslov
I. M. Suslov (Kapitza Institute for Physical Problems, Moscow, Russia)
A thorny path of field theory: from triviality to interaction and confinement
Review article, 30 pages, 15 figures. arXiv admin note: substantial text overlap with arXiv:1102.4534, arXiv:0911.1149
null
null
null
hep-ph cond-mat.stat-mech hep-lat hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Summation of the perturbation series for the Gell-Mann--Low function \beta(g) of \phi^4 theory leads to the asymptotics \beta(g)=\beta_\infty g^\alpha at g\to\infty, where \alpha\approx 1 for space dimensions d=2,3,4. The natural hypothesis arises, that asymptotic behavior is \beta(g) \sim g for all d. Consideration ...
[ { "created": "Thu, 18 Jun 2015 23:59:27 GMT", "version": "v1" } ]
2015-06-24
[ [ "Suslov", "I. M.", "", "Kapitza Institute for Physical Problems, Moscow, Russia" ] ]
Summation of the perturbation series for the Gell-Mann--Low function \beta(g) of \phi^4 theory leads to the asymptotics \beta(g)=\beta_\infty g^\alpha at g\to\infty, where \alpha\approx 1 for space dimensions d=2,3,4. The natural hypothesis arises, that asymptotic behavior is \beta(g) \sim g for all d. Consideration of...
hep-ph/9806396
Javier Magnin
J.C. Anjos, J. Magnin, F.R.A. Simao and J. Solano
Asymmetry studies in Lambda 0/Lambda 0-bar, Xi-/Xi+ and Omega-/Omega+ production
One reference corrected
null
10.1063/1.56627
CBPF-NF-045/98
hep-ph
null
We present a study on hyperon/anti-hyperon production asymmetries in the framework of the recombination model. The production asymmetries for Lambda 0/Lambda 0-bar, Xi-/Xi+ and Omega-/Omega+ are studied as a function of x_F. Predictions of the model are compared to preliminary data on hyperon/anti-hyperon production ...
[ { "created": "Wed, 17 Jun 1998 19:31:35 GMT", "version": "v1" }, { "created": "Fri, 19 Jun 1998 12:00:38 GMT", "version": "v2" }, { "created": "Wed, 24 Jun 1998 20:30:54 GMT", "version": "v3" } ]
2009-10-31
[ [ "Anjos", "J. C.", "" ], [ "Magnin", "J.", "" ], [ "Simao", "F. R. A.", "" ], [ "Solano", "J.", "" ] ]
We present a study on hyperon/anti-hyperon production asymmetries in the framework of the recombination model. The production asymmetries for Lambda 0/Lambda 0-bar, Xi-/Xi+ and Omega-/Omega+ are studied as a function of x_F. Predictions of the model are compared to preliminary data on hyperon/anti-hyperon production as...
2205.05145
Andreas Ekstedt
Andreas Ekstedt
Convergence of the nucleation rate for first-order phase transitions
6 pages, 3 figures
null
10.1103/PhysRevD.106.095026
null
hep-ph hep-th
http://creativecommons.org/licenses/by/4.0/
This paper investigates the importance of radiative corrections for first-order phase transitions, with particular focus on the bubble-nucleation rate. All calculations are done with a strict power-counting, and observables are consistently calculated at every order. This ensures that physical quantities are gauge an...
[ { "created": "Tue, 10 May 2022 19:55:05 GMT", "version": "v1" } ]
2022-12-07
[ [ "Ekstedt", "Andreas", "" ] ]
This paper investigates the importance of radiative corrections for first-order phase transitions, with particular focus on the bubble-nucleation rate. All calculations are done with a strict power-counting, and observables are consistently calculated at every order. This ensures that physical quantities are gauge and ...
1501.03604
Jinn-Ouk Gong
Jinn-Ouk Gong, Shi Pi and Godfrey Leung
Probing reheating with primordial spectrum
(v1) 12 pages, 2 figures; (v2) references added; (v3) typos corrected, figures improved with Planck 2015 data, to appear in Journal of Cosmology and Astroparticle Physics
null
10.1088/1475-7516/2015/05/027
APCTP-Pre2015-001
hep-ph astro-ph.CO gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the impacts of reheating temperature on the inflationary predictions of the spectral index and tensor-to-scalar ratio. Assuming sinusoidal oscillations and that reheating process is very fast, the reheating temperature can be constrained for sinusoidal oscillation within a factor of 10 - 100 or even better w...
[ { "created": "Thu, 15 Jan 2015 09:09:19 GMT", "version": "v1" }, { "created": "Thu, 29 Jan 2015 02:16:49 GMT", "version": "v2" }, { "created": "Mon, 11 May 2015 13:39:35 GMT", "version": "v3" } ]
2015-05-27
[ [ "Gong", "Jinn-Ouk", "" ], [ "Pi", "Shi", "" ], [ "Leung", "Godfrey", "" ] ]
We study the impacts of reheating temperature on the inflationary predictions of the spectral index and tensor-to-scalar ratio. Assuming sinusoidal oscillations and that reheating process is very fast, the reheating temperature can be constrained for sinusoidal oscillation within a factor of 10 - 100 or even better wit...
2104.03223
Norimi Yokozaki
Sho Iwamoto, Tsutomu T. Yanagida and Norimi Yokozaki
Wino-Higgsino dark matter in the MSSM from the $g-2$ anomaly
Figures and benchmark point for tanb=40 added, typos corrected
null
10.1016/j.physletb.2021.136768
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
In this letter, we show that the wino-Higgsino dark matter (DM) is detectable in near future DM direct detection experiments for almost all consistent parameter space in the spontaneously broken supergravity (SUGRA) if the muon g-2 anomaly is explained by the wino-Higgsino loop diagrams. We also point out that the pr...
[ { "created": "Wed, 7 Apr 2021 16:23:13 GMT", "version": "v1" }, { "created": "Thu, 8 Apr 2021 14:52:30 GMT", "version": "v2" } ]
2021-11-10
[ [ "Iwamoto", "Sho", "" ], [ "Yanagida", "Tsutomu T.", "" ], [ "Yokozaki", "Norimi", "" ] ]
In this letter, we show that the wino-Higgsino dark matter (DM) is detectable in near future DM direct detection experiments for almost all consistent parameter space in the spontaneously broken supergravity (SUGRA) if the muon g-2 anomaly is explained by the wino-Higgsino loop diagrams. We also point out that the pres...
1112.5978
Mikolaj Misiak
Mikolaj Misiak
Rare B-Meson Decays
Talk presented at the 15th Lomonosov Conference on Elementary Particle Physics, Moscow, Russia, August 18-24th, 2011. 5 pages, no figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Rare decays of the B-meson that arise due to loop-mediated FCNC transitions are known to provide important constraints on beyond-SM theories. Basic properties of several such decays are reviewed here.
[ { "created": "Tue, 27 Dec 2011 15:46:58 GMT", "version": "v1" } ]
2011-12-30
[ [ "Misiak", "Mikolaj", "" ] ]
Rare decays of the B-meson that arise due to loop-mediated FCNC transitions are known to provide important constraints on beyond-SM theories. Basic properties of several such decays are reviewed here.
hep-ph/0409271
Ulrich Jentschura
Ulrich D. Jentschura
Two-Loop Bethe Logarithms for Higher Excited S Levels
14 pages, RevTeX, to appear in Phys. Rev. A
Phys.Rev. A70 (2004) 052108
10.1103/PhysRevA.70.052108
null
hep-ph
null
Processes mediated by two virtual low-energy photons contribute quite significantly to the energy of hydrogenic S states. The corresponding level shift is of the order of (alpha/pi)^2 (Zalpha)^6 m_e c^2 and may be ascribed to a two-loop generalization of the Bethe logarithm. For 1S and 2S states, the correction has r...
[ { "created": "Thu, 23 Sep 2004 15:12:06 GMT", "version": "v1" }, { "created": "Thu, 23 Sep 2004 21:36:04 GMT", "version": "v2" } ]
2007-05-23
[ [ "Jentschura", "Ulrich D.", "" ] ]
Processes mediated by two virtual low-energy photons contribute quite significantly to the energy of hydrogenic S states. The corresponding level shift is of the order of (alpha/pi)^2 (Zalpha)^6 m_e c^2 and may be ascribed to a two-loop generalization of the Bethe logarithm. For 1S and 2S states, the correction has rec...
hep-ph/0306078
Luis Anchordoqui
Luis A. Anchordoqui
Prospects for discovery of physics beyond the Standard Model at the Pierre Auger Observatory
(v1) Talk given at the SUGRA 20 Meeting, Boston 2003. http://www.sugra20.neu.edu To be published in the Conference Proceedings. (v2) References added
null
null
null
hep-ph astro-ph gr-qc hep-ex
null
I summarize the discovery potential for physics beyond the electroweak scale at the Pierre Auger Observatory. This observatory is designed to study ultra-high energy cosmic rays with unprecedented precision, with the primary goal of shedding light on their composition and origins. In addition, since the center-of-mas...
[ { "created": "Tue, 10 Jun 2003 15:24:27 GMT", "version": "v1" }, { "created": "Mon, 7 Jul 2003 15:07:20 GMT", "version": "v2" } ]
2007-05-23
[ [ "Anchordoqui", "Luis A.", "" ] ]
I summarize the discovery potential for physics beyond the electroweak scale at the Pierre Auger Observatory. This observatory is designed to study ultra-high energy cosmic rays with unprecedented precision, with the primary goal of shedding light on their composition and origins. In addition, since the center-of-mass ...
hep-ph/9512363
null
C. Glenn Boyd and Richard F. Lebed
Improved QCD Form Factor Constraints and Lambda_b --> Lambda_c l nu
19 pages, 2 figures, one in eps, one in ps; uses epsf.tex and lanlmac.tex (harvmac.tex). Version accepted by Nuc. Phys. B. Includes a more detailed discussion of branch cuts and minor modifications to wording and numerical results
Nucl.Phys. B485 (1997) 275-290
null
UCSD/PTH 95-23
hep-ph
null
We construct model-independent parametrizations of the individual QCD form factors relevant to Lambda_b --> Lambda_c l nu decays. These results follow from dispersion relations and analyticity, and incorporate an improvement in the technique that reduces the number of necessary parameters. To describe most form facto...
[ { "created": "Wed, 20 Dec 1995 00:00:50 GMT", "version": "v1" }, { "created": "Thu, 17 Oct 1996 17:53:15 GMT", "version": "v2" } ]
2008-02-03
[ [ "Boyd", "C. Glenn", "" ], [ "Lebed", "Richard F.", "" ] ]
We construct model-independent parametrizations of the individual QCD form factors relevant to Lambda_b --> Lambda_c l nu decays. These results follow from dispersion relations and analyticity, and incorporate an improvement in the technique that reduces the number of necessary parameters. To describe most form factors...
hep-ph/0111029
Csaba Balazs
Howard Baer, Csaba Balazs, J.Kenichi Mizukoshi
The complementary roles of the LHC and the LC in discovering supersymmetry
3 pages, 4 figures. Contribution to Snowmass 2001
eConf C010630 (2001) P348
null
null
hep-ph
null
We address the complementarity of the CERN Large Hadron Collider and an $e^+ e^-$ Linear Collider in determining SUSY model parameters for a particular SO(10) SUSY GUT case study.
[ { "created": "Fri, 2 Nov 2001 20:37:28 GMT", "version": "v1" } ]
2007-05-23
[ [ "Baer", "Howard", "" ], [ "Balazs", "Csaba", "" ], [ "Mizukoshi", "J. Kenichi", "" ] ]
We address the complementarity of the CERN Large Hadron Collider and an $e^+ e^-$ Linear Collider in determining SUSY model parameters for a particular SO(10) SUSY GUT case study.
1608.03982
Alfredo Valcarce
J. Vijande, A. Valcarce, J.-M. Richard, and P. Sorba
Search for doubly-heavy dibaryons in a quark model
6 pages. To be published in Phys. Rev. D
Phys. Rev. D 94, 034038 (2016)
10.1103/PhysRevD.94.034038
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the stability of hexaquark systems containing two heavy quarks and four light quarks within a simple quark model. No bound or metastable state is found. The reason stems on a delicate interplay between chromoelectric and chromomagnetic effects. Our calculation provides also information about anticharmed pent...
[ { "created": "Sat, 13 Aug 2016 13:38:49 GMT", "version": "v1" } ]
2016-08-26
[ [ "Vijande", "J.", "" ], [ "Valcarce", "A.", "" ], [ "Richard", "J. -M.", "" ], [ "Sorba", "P.", "" ] ]
We study the stability of hexaquark systems containing two heavy quarks and four light quarks within a simple quark model. No bound or metastable state is found. The reason stems on a delicate interplay between chromoelectric and chromomagnetic effects. Our calculation provides also information about anticharmed pentaq...
hep-ph/0701100
Marcelo Loewe
M.L. El-Sheikh and M. Loewe
Isospin Chemical potential and temperature effects in the Linear Sigma Model
12 pages, 10 figures. A new reference has been added and some typos have been corrected
null
null
null
hep-ph
null
In this letter we explore the temperature and isospin chemical potential ($\mu_I$) dependence of the vacuum structure and the meson masses in the linear sigma model, at the one loop level. The sigma meson mass grows steadily with temperature. This behavior does not agree with previous mean field calculations. For the...
[ { "created": "Fri, 12 Jan 2007 20:13:43 GMT", "version": "v1" }, { "created": "Wed, 17 Jan 2007 14:48:49 GMT", "version": "v2" } ]
2007-05-23
[ [ "El-Sheikh", "M. L.", "" ], [ "Loewe", "M.", "" ] ]
In this letter we explore the temperature and isospin chemical potential ($\mu_I$) dependence of the vacuum structure and the meson masses in the linear sigma model, at the one loop level. The sigma meson mass grows steadily with temperature. This behavior does not agree with previous mean field calculations. For the p...
hep-ph/0702130
Felipe J. Llanes-Estrada
Antonio Dobado Gonzalez, Felipe J. Llanes-Estrada and Juan M. Torres Rincon (U. Complutense Madrid)
Heat conductivity of a pion gas
3 pgs., 3 figs., Contribution to the proceedings of QNP06, IVth Intnal. Conference on Quarks and Nuclear Physics, Madrid June 5th-10th 2006
null
null
null
hep-ph
null
We evaluate the heat conductivity of a dilute pion gas employing the Uehling-Uehlenbeck equation and experimental phase-shifts parameterized by means of the SU(2) Inverse Amplitude Method. Our results are consistent with previous evaluations. For comparison we also give results for an (unphysical) hard sphere gas.
[ { "created": "Tue, 13 Feb 2007 15:07:32 GMT", "version": "v1" } ]
2007-05-23
[ [ "Gonzalez", "Antonio Dobado", "", "U. Complutense Madrid" ], [ "Llanes-Estrada", "Felipe J.", "", "U. Complutense Madrid" ], [ "Rincon", "Juan M. Torres", "", "U. Complutense Madrid" ] ]
We evaluate the heat conductivity of a dilute pion gas employing the Uehling-Uehlenbeck equation and experimental phase-shifts parameterized by means of the SU(2) Inverse Amplitude Method. Our results are consistent with previous evaluations. For comparison we also give results for an (unphysical) hard sphere gas.
hep-ph/0012294
null
Alexandre A. Osipov and Brigitte Hiller (University of Coimbra, Portugal)
Generalized Proper-Time Approach For The Case Of Broken Isospin Symmetry
24 pages, plain LaTeX, no figures
Phys.Rev.D63:094009,2001
10.1103/PhysRevD.63.094009
null
hep-ph
null
We present a derivation of the low-energy effective meson Lagrangian of the Nambu -- Jona-Lasinio (NJL) model on the basis of Schwinger's proper-time regularization of the one-loop fermion determinant. We consider the case in which the $SU(2)\times SU(2)$ chiral symmetry of the NJL Lagrangian is broken by the current...
[ { "created": "Thu, 21 Dec 2000 17:36:19 GMT", "version": "v1" } ]
2011-02-01
[ [ "Osipov", "Alexandre A.", "", "University of Coimbra,\n Portugal" ], [ "Hiller", "Brigitte", "", "University of Coimbra,\n Portugal" ] ]
We present a derivation of the low-energy effective meson Lagrangian of the Nambu -- Jona-Lasinio (NJL) model on the basis of Schwinger's proper-time regularization of the one-loop fermion determinant. We consider the case in which the $SU(2)\times SU(2)$ chiral symmetry of the NJL Lagrangian is broken by the current q...
0801.0041
Nick Kersting
P. Huang, N. Kersting, H.H. Yang
Extracting MSSM Masses From Heavy Higgs Decays to Four Leptons at the LHC
version to be published in PRD
Phys.Rev.D77:075011,2008
10.1103/PhysRevD.77.075011
SCUPHY-TH-08001
hep-ph
null
It is well known that finding and measuring the masses of particles in the Minimal Supersymmetric Standard Model (MSSM) at the Large Hadron Collider (LHC) may be possible using invariant mass distributions in exclusive channels containing n_j jets and n_l leptons. We perform this analysis for the (n_j, n_l) = (0,4) d...
[ { "created": "Sat, 29 Dec 2007 14:12:19 GMT", "version": "v1" }, { "created": "Thu, 10 Jan 2008 18:03:07 GMT", "version": "v2" }, { "created": "Tue, 11 Mar 2008 13:55:55 GMT", "version": "v3" } ]
2008-11-26
[ [ "Huang", "P.", "" ], [ "Kersting", "N.", "" ], [ "Yang", "H. H.", "" ] ]
It is well known that finding and measuring the masses of particles in the Minimal Supersymmetric Standard Model (MSSM) at the Large Hadron Collider (LHC) may be possible using invariant mass distributions in exclusive channels containing n_j jets and n_l leptons. We perform this analysis for the (n_j, n_l) = (0,4) dec...
hep-ph/9808401
Tony Gherghetta
T.Gherghetta, G.F.Giudice and A.Riotto
Nucleosynthesis Bounds in Gauge-Mediated Supersymmetry Breaking Theories
13 pages, 4 figures, LaTeX
Phys.Lett. B446 (1999) 28-36
10.1016/S0370-2693(98)01527-5
CERN-TH/98-271
hep-ph astro-ph
null
In gauge-mediated supersymmetry breaking theories the next-to-lightest supersymmetric particle can decay during or after the nucleosynthesis epoch. The decay products such as photons and hadrons can destroy the light element abundances. Restricting the damage that these decays can do leads to constraints on the abund...
[ { "created": "Mon, 24 Aug 1998 17:41:22 GMT", "version": "v1" } ]
2015-06-25
[ [ "Gherghetta", "T.", "" ], [ "Giudice", "G. F.", "" ], [ "Riotto", "A.", "" ] ]
In gauge-mediated supersymmetry breaking theories the next-to-lightest supersymmetric particle can decay during or after the nucleosynthesis epoch. The decay products such as photons and hadrons can destroy the light element abundances. Restricting the damage that these decays can do leads to constraints on the abundan...
hep-ph/0410016
Biagio Lucini
Biagio Lucini
The large $N$ limit from the lattice
Talk presented at Light-Cone 2004, Amsterdam, 16 - 20 August 2004. 6 pages, 4 figures. Include latex style files
Few Body Syst. 36 (2005) 161-166
10.1007/s00601-004-0094-7
null
hep-ph hep-lat hep-th
null
A numerical study of the string tension and of the masses of the lowest-lying glueballs is performed in SU($N$) gauge theories for $2 \le N \le 8$ in D=3+1 and $2 \le N \le 6$ in D=2+1. It is shown that for the string tension a smooth $N \to \infty$ limit exists that depends only on the 't Hooft coupling $\lambda = g...
[ { "created": "Fri, 1 Oct 2004 14:44:14 GMT", "version": "v1" } ]
2009-11-10
[ [ "Lucini", "Biagio", "" ] ]
A numerical study of the string tension and of the masses of the lowest-lying glueballs is performed in SU($N$) gauge theories for $2 \le N \le 8$ in D=3+1 and $2 \le N \le 6$ in D=2+1. It is shown that for the string tension a smooth $N \to \infty$ limit exists that depends only on the 't Hooft coupling $\lambda = g^2...
1306.0252
Zakhar Khaidukov
Zakhar Khaidukov
Q-balls and the chiral vortical effect
5 pages
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The paper considers the possibility of the existence of the axial current, that is directed along the axis of rotation and arises due to the presence of the Q-ball.
[ { "created": "Sun, 2 Jun 2013 21:41:05 GMT", "version": "v1" } ]
2013-06-04
[ [ "Khaidukov", "Zakhar", "" ] ]
The paper considers the possibility of the existence of the axial current, that is directed along the axis of rotation and arises due to the presence of the Q-ball.
hep-ph/9701375
Matthias Neubert
G. Amor\'os, M. Beneke and M. Neubert (CERN)
Two-Loop Anomalous Dimension of the Chromo-Magnetic Moment of a Heavy Quark
13 pages, 4 figures
Phys.Lett. B401 (1997) 81-90
10.1016/S0370-2693(97)00345-6
CERN-TH/97-3
hep-ph
null
We find that the anomalous dimension (in the $\bar{MS}$ scheme) of the chromo-magnetic operator $g_s\bar h_v\sigma_{\mu\nu} G^{\mu\nu} h_v$ in the heavy-quark effective theory is \gamma_{mag} = (C_A\alpha_s / 2\pi) [1 + ( 17/18 C_A - 13/18 T_F n_f)\alpha_s/\pi + O(\alpha_s^2)] generalizing the one-loop expression kno...
[ { "created": "Fri, 24 Jan 1997 18:32:56 GMT", "version": "v1" } ]
2009-10-30
[ [ "Amorós", "G.", "", "CERN" ], [ "Beneke", "M.", "", "CERN" ], [ "Neubert", "M.", "", "CERN" ] ]
We find that the anomalous dimension (in the $\bar{MS}$ scheme) of the chromo-magnetic operator $g_s\bar h_v\sigma_{\mu\nu} G^{\mu\nu} h_v$ in the heavy-quark effective theory is \gamma_{mag} = (C_A\alpha_s / 2\pi) [1 + ( 17/18 C_A - 13/18 T_F n_f)\alpha_s/\pi + O(\alpha_s^2)] generalizing the one-loop expression known...
hep-ph/9711425
Cliff Burgess
C.P. Burgess
Solar Fluctuations and the MSW Effect
10 pages, LaTeX, talk given at the Erice School on Neutrinos in Astro, Particle and Nuclear Physics
Prog.Part.Nucl.Phys. 40 (1998) 137-146
10.1016/S0146-6410(98)00018-0
McGill-97/32
hep-ph astro-ph nucl-th
null
This talk summarizes the results of recent calculations of how fluctuations within the solar medium can influence resonant neutrino oscillations within the sun. Although initial calculations pointed to helioseismic waves as possibly producing detectable effects, recent more careful calculations show this not to be tr...
[ { "created": "Fri, 21 Nov 1997 22:34:08 GMT", "version": "v1" } ]
2009-10-30
[ [ "Burgess", "C. P.", "" ] ]
This talk summarizes the results of recent calculations of how fluctuations within the solar medium can influence resonant neutrino oscillations within the sun. Although initial calculations pointed to helioseismic waves as possibly producing detectable effects, recent more careful calculations show this not to be true...
1107.1343
Chun-Yu Cui
Chun-Yu Cui, Yong-Lu Liu and Ming-Qiu Huang
Investigating different structures of the Z_{b}(10610) and Z_{b}(10650)
17 pages, 9 figures
Phys. Rev. D 85, 074014 (2012)
10.1103/PhysRevD.85.074014
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The recently observed narrow resonance $Z_{b}(10610)$ is examined with the assumptions both as a $B^{*}\bar{B}$ molecular state and a $[bd][\bar{b}\bar{u}]$ tetraquark state with quantum numbers $I^{G}J^{P}=1^{+}1^{+}$. Possible interpolating currents are constructed to describe the $Z_{b}(10650)$ as an axial-vector ...
[ { "created": "Thu, 7 Jul 2011 11:09:13 GMT", "version": "v1" }, { "created": "Fri, 11 Nov 2011 18:10:09 GMT", "version": "v2" }, { "created": "Wed, 18 Apr 2012 07:42:42 GMT", "version": "v3" } ]
2012-04-19
[ [ "Cui", "Chun-Yu", "" ], [ "Liu", "Yong-Lu", "" ], [ "Huang", "Ming-Qiu", "" ] ]
The recently observed narrow resonance $Z_{b}(10610)$ is examined with the assumptions both as a $B^{*}\bar{B}$ molecular state and a $[bd][\bar{b}\bar{u}]$ tetraquark state with quantum numbers $I^{G}J^{P}=1^{+}1^{+}$. Possible interpolating currents are constructed to describe the $Z_{b}(10650)$ as an axial-vector $B...
hep-ph/9512308
Kraizelman Riva
Paul Singer(Technion,Haifa,Israel)
Weak Radiative Decays of Hyperons and of Charm and Beauty Baryons
9 pages. Invited Lecture at the Conference on "Production and Decay of Hyperons, Charm and Beauty Hadrons",September 5-8,1995;Strasbourg, France
Nucl.Phys.Proc.Suppl. 50 (1996) 202-210
10.1016/0920-5632(96)00392-1
null
hep-ph
null
A review is presented of the weak radiative decays of baryons.It includes an anlysis of the possible contributions of electromagnetic penguins to these decays,a survey of the difficulties still encountered in the sector of hyperon decays and a short account on some new developments on this topic. The theoretical trea...
[ { "created": "Thu, 14 Dec 1995 11:38:22 GMT", "version": "v1" } ]
2009-10-28
[ [ "Singer", "Paul", "", "Technion,Haifa,Israel" ] ]
A review is presented of the weak radiative decays of baryons.It includes an anlysis of the possible contributions of electromagnetic penguins to these decays,a survey of the difficulties still encountered in the sector of hyperon decays and a short account on some new developments on this topic. The theoretical treatm...
2112.14076
Fernando Alvarado
Fernando Alvarado and Luis Alvarez-Ruso
Light-quark mass dependence of the nucleon axial charge and pion-nucleon scattering phenomenology
Minor change: corrected a term in the expression "dZDlessp3" in the Mathematica notebook
Phys. Rev. D 105, 074001 (2022)
10.1103/PhysRevD.105.074001
null
hep-ph hep-lat nucl-th
http://creativecommons.org/licenses/by/4.0/
The light-quark mass dependence of the nucleon axial isovector charge ($g_A$) has been studied up to next-to-next-to-leading order, $O(p^4)$, in relativistic chiral perturbation theory using extended-on-mass-shell renormalization, without and with explicit $\Delta (1232)$ degrees of freedom. We show that in the $\Del...
[ { "created": "Tue, 28 Dec 2021 10:17:34 GMT", "version": "v1" }, { "created": "Thu, 14 Apr 2022 09:32:05 GMT", "version": "v2" }, { "created": "Wed, 29 Jun 2022 15:46:04 GMT", "version": "v3" } ]
2022-06-30
[ [ "Alvarado", "Fernando", "" ], [ "Alvarez-Ruso", "Luis", "" ] ]
The light-quark mass dependence of the nucleon axial isovector charge ($g_A$) has been studied up to next-to-next-to-leading order, $O(p^4)$, in relativistic chiral perturbation theory using extended-on-mass-shell renormalization, without and with explicit $\Delta (1232)$ degrees of freedom. We show that in the $\Delta...
1210.5347
Tom Zirke
Oliver Brein, Robert V. Harlander, Tom J. E. Zirke
vh@nnlo - Higgs Strahlung at hadron colliders
16 pages, 4 Figures; v2: reference added, some typos removed, version published in CPC
Computer Physics Communications 184 (2013) pp. 998-1003
10.1016/j.cpc.2012.11.002
WUB/12-20
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A numerical program for the evaluation of the inclusive cross section for associated Higgs production with a massive weak gauge boson at hadron colliders is described, sigma(pp/pbar p -> HV), V=W,Z. The calculation is performed in the framework of the Standard Model and includes next-to-next-to-leading order QCD as w...
[ { "created": "Fri, 19 Oct 2012 09:04:24 GMT", "version": "v1" }, { "created": "Thu, 13 Dec 2012 08:44:17 GMT", "version": "v2" } ]
2012-12-20
[ [ "Brein", "Oliver", "" ], [ "Harlander", "Robert V.", "" ], [ "Zirke", "Tom J. E.", "" ] ]
A numerical program for the evaluation of the inclusive cross section for associated Higgs production with a massive weak gauge boson at hadron colliders is described, sigma(pp/pbar p -> HV), V=W,Z. The calculation is performed in the framework of the Standard Model and includes next-to-next-to-leading order QCD as wel...
hep-ph/0603152
Alison Demaria
Alison Demaria, Catherine I. Low and Raymond R. Volkas
Neutrino masses in quartification schemes
12 pages, minor changes. To appear in Phys. Rev.D
Phys.Rev. D74 (2006) 033005
10.1103/PhysRevD.74.033005
null
hep-ph
null
The idea of quark-lepton universality at high energies has recently been explored in unified theories based upon the quartification gauge group SU(3)^4. These schemes encompass a quark-lepton exchange symmetry that results upon the introduction of leptonic colour. It has been demonstrated that in models in which the ...
[ { "created": "Mon, 20 Mar 2006 22:29:28 GMT", "version": "v1" }, { "created": "Thu, 20 Jul 2006 23:36:18 GMT", "version": "v2" } ]
2009-11-11
[ [ "Demaria", "Alison", "" ], [ "Low", "Catherine I.", "" ], [ "Volkas", "Raymond R.", "" ] ]
The idea of quark-lepton universality at high energies has recently been explored in unified theories based upon the quartification gauge group SU(3)^4. These schemes encompass a quark-lepton exchange symmetry that results upon the introduction of leptonic colour. It has been demonstrated that in models in which the qu...
1607.03125
Sylvain Fichet
Sylvain Fichet, Gero von Gersdorff, Eduardo Ponton, Rogerio Rosenfeld
The Excitation of the Global Symmetry-Breaking Vacuum in Composite Higgs Models
27 pages, 2 figures. v3: References and comments added. Matches JHEP version
null
10.1007/JHEP09(2016)158
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider scenarios of Higgs compositeness where the Higgs doublet arises as a pseudo-Nambu Goldstone boson. Our focus is the physical scalar ("radial") excitation associated with the global symmetry breaking vacuum, which we call the "global Higgs". For the minimal case of a $SO(5)/SO(4)$ coset, the couplings of t...
[ { "created": "Mon, 11 Jul 2016 20:02:48 GMT", "version": "v1" }, { "created": "Wed, 10 Aug 2016 18:20:31 GMT", "version": "v2" }, { "created": "Wed, 28 Sep 2016 04:58:32 GMT", "version": "v3" } ]
2016-11-03
[ [ "Fichet", "Sylvain", "" ], [ "von Gersdorff", "Gero", "" ], [ "Ponton", "Eduardo", "" ], [ "Rosenfeld", "Rogerio", "" ] ]
We consider scenarios of Higgs compositeness where the Higgs doublet arises as a pseudo-Nambu Goldstone boson. Our focus is the physical scalar ("radial") excitation associated with the global symmetry breaking vacuum, which we call the "global Higgs". For the minimal case of a $SO(5)/SO(4)$ coset, the couplings of the...
hep-ph/0102001
Chikage Habe
K. Fujii, C. Habe (Hokkaido Univi.), T. Yabuki (Rakunou Gakuen Univ.)
Remarks on flavor-neutrino propagators and oscillation formulae
revtex, 16 pages
Phys.Rev. D64 (2001) 013011
10.1103/PhysRevD.64.013011
null
hep-ph
null
We examine the general structure of the formulae of neutrino oscillations proposed by Blasone and Vitiello(BV). Reconstructing their formulae with the retarded propagators of the flavor neutrino fields for the case of many flavors, we can get easily the formulae which satisfy the suitable boundary conditions and are ...
[ { "created": "Thu, 1 Feb 2001 05:47:16 GMT", "version": "v1" } ]
2009-11-07
[ [ "Fujii", "K.", "", "Hokkaido Univi." ], [ "Habe", "C.", "", "Hokkaido Univi." ], [ "Yabuki", "T.", "", "Rakunou Gakuen Univ." ] ]
We examine the general structure of the formulae of neutrino oscillations proposed by Blasone and Vitiello(BV). Reconstructing their formulae with the retarded propagators of the flavor neutrino fields for the case of many flavors, we can get easily the formulae which satisfy the suitable boundary conditions and are in...
0810.4303
J. -Alexis Rodriguez L.
R. Martinez, J.-Alexis Rodriguez and S. Sanchez
Charged Higgs production at photon colliders in 2HDM-III
5 pages, 4 figures, to appear Brazilian Journal of Physics
Braz.J.Phys.38:507-510,2008
10.1590/S0103-97332008000400025
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study charged Higgs production in the process $\gamma\gamma\to A^0\to W^- H^+$. The processes $\gamma\gamma\to A^0$ are loop mediated in a 2HDM. This is due to the fact that photons only couple directly to charged particles and the Higgs only couples to particles with mass acquired via Higgs mechanism. Although in...
[ { "created": "Thu, 23 Oct 2008 15:33:55 GMT", "version": "v1" } ]
2011-08-31
[ [ "Martinez", "R.", "" ], [ "Rodriguez", "J. -Alexis", "" ], [ "Sanchez", "S.", "" ] ]
We study charged Higgs production in the process $\gamma\gamma\to A^0\to W^- H^+$. The processes $\gamma\gamma\to A^0$ are loop mediated in a 2HDM. This is due to the fact that photons only couple directly to charged particles and the Higgs only couples to particles with mass acquired via Higgs mechanism. Although in M...
0805.1965
Bob Holdom
B. Holdom
New Flavor Interactions at the LHC
11 pages, 3 figures, improved version to appear in Physics Letters B
Phys.Lett.B666:77-81,2008
10.1016/j.physletb.2008.07.001
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
For a new family-nonuniversal gauge interaction to be accessible at the LHC it will most likely couple preferentially to the third family. By coupling to all members of the third family the production of a new gauge boson (the $X$ with $M_X\approx1$ TeV) will lead to final states with a distinctive $\tau^+\tau^-$ pai...
[ { "created": "Wed, 14 May 2008 03:16:38 GMT", "version": "v1" }, { "created": "Wed, 2 Jul 2008 01:05:53 GMT", "version": "v2" } ]
2008-11-26
[ [ "Holdom", "B.", "" ] ]
For a new family-nonuniversal gauge interaction to be accessible at the LHC it will most likely couple preferentially to the third family. By coupling to all members of the third family the production of a new gauge boson (the $X$ with $M_X\approx1$ TeV) will lead to final states with a distinctive $\tau^+\tau^-$ pair....
0705.2705
Vasile Topor Pop N
V. Topor Pop, J. Barrette, C. Gale, S. Jeon (McGill Univ., Canada), M. Gyulassy (Columbia Univ.NY, USA and FIAS, Frankfurt am Main, Germany)
(Multi)Strangeness Production in Pb+Pb collisions at LHC. HIJING/BBar v2.0 predictions
Comments: 3 pages, 2 figures, submitted to the CERN Theory Institute Workshop, Heavy Ion Collisions at the LHC. Last Call Predictions, May 14 - June 8, 2007
null
null
null
hep-ph
null
Strangeness and multi-strangeness particles production can be used to explore the initial transient field fluctuations in heavy ion collisions. We emphasize the role played by Junction anti-Junction (JJbar) loops and strong color electric fields (SCF) in these collisions. Transient field fluctuations of SCF on the ba...
[ { "created": "Fri, 18 May 2007 19:04:49 GMT", "version": "v1" } ]
2007-05-23
[ [ "Pop", "V. Topor", "", "McGill Univ., Canada" ], [ "Barrette", "J.", "", "McGill Univ., Canada" ], [ "Gale", "C.", "", "McGill Univ., Canada" ], [ "Jeon", "S.", "", "McGill Univ., Canada" ], [ "Gyulassy", "M.", "", "Co...
Strangeness and multi-strangeness particles production can be used to explore the initial transient field fluctuations in heavy ion collisions. We emphasize the role played by Junction anti-Junction (JJbar) loops and strong color electric fields (SCF) in these collisions. Transient field fluctuations of SCF on the bary...
hep-ph/9503223
null
Julian Borrill, T.W.B. Kibble, Tanmay Vachaspati and Alexander Vilenkin
Defect Production in Slow First Order Phase Transitions
13 pages, RevTeX, 15 uuencoded postscript figures
Phys.Rev.D52:1934-1943,1995
10.1103/PhysRevD.52.1934
IMPERIAL/TP/94-95/18, CWRU-P2-1995, NI94043
hep-ph astro-ph
null
We study the formation of vortices in a U(1) gauge theory following a first-order transition proceeding by bubble nucleation, in particular the effect of a low velocity of expansion of the bubble walls. To do this, we use a two-dimensional model in which bubbles are nucleated at random points in a plane and at random...
[ { "created": "Fri, 3 Mar 1995 11:42:31 GMT", "version": "v1" } ]
2010-11-01
[ [ "Borrill", "Julian", "" ], [ "Kibble", "T. W. B.", "" ], [ "Vachaspati", "Tanmay", "" ], [ "Vilenkin", "Alexander", "" ] ]
We study the formation of vortices in a U(1) gauge theory following a first-order transition proceeding by bubble nucleation, in particular the effect of a low velocity of expansion of the bubble walls. To do this, we use a two-dimensional model in which bubbles are nucleated at random points in a plane and at random t...
hep-ph/9303306
null
S. Kumano (U. Mainz and Indiana U.)
Nuclear Shadowing in a Parton Recombination Model
preprint MKPH-T-93-04, IU/NTC 92-20, 25 pages, TEX file (without Figs. 1-14)., (address after April 1: Saga U., Japan)
Phys.Rev.C48:2016-2028,1993
10.1103/PhysRevC.48.2016
null
hep-ph nucl-th
null
Deep inelastic structure functions $F_2^A(x)$ are investigated in a $Q^2$ rescaling model with parton recombination effects. We find that the model can explain experimentally measured $F_2^A(x)$ structure functions reasonably well in the wide Bjorken$-x$ range ($0.005<x<0.8$). In the very small $x$ region ($x<0.02$),...
[ { "created": "Thu, 25 Mar 1993 17:10:00 GMT", "version": "v1" } ]
2008-11-26
[ [ "Kumano", "S.", "", "U. Mainz and Indiana U." ] ]
Deep inelastic structure functions $F_2^A(x)$ are investigated in a $Q^2$ rescaling model with parton recombination effects. We find that the model can explain experimentally measured $F_2^A(x)$ structure functions reasonably well in the wide Bjorken$-x$ range ($0.005<x<0.8$). In the very small $x$ region ($x<0.02$), r...
1108.4640
Bachir Moussallam
B. Moussallam
Properties of light scalar mesons in the complex plane
Talk given at the XIV international conference on hadron spectroscopy (hadron 2011), june 2011 Munich
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The flavour and glue structure of the light scalar mesons in QCD are probed by studying the couplings of the $\sigma(600)$ and $f_0(980)$ to the operators $\bar{q}q$, $\theta_\mu^\mu$ and to two photons.
[ { "created": "Tue, 23 Aug 2011 15:51:32 GMT", "version": "v1" } ]
2011-08-24
[ [ "Moussallam", "B.", "" ] ]
The flavour and glue structure of the light scalar mesons in QCD are probed by studying the couplings of the $\sigma(600)$ and $f_0(980)$ to the operators $\bar{q}q$, $\theta_\mu^\mu$ and to two photons.
1802.00064
Marco Bonvini
xFitter Developers' team: Hamed Abdolmaleki, Valerio Bertone, Daniel Britzger, Stefano Camarda, Amanda Cooper-Sarkar, Francesco Giuli, Alexander Glazov, Aleksander Kusina, Agnieszka Luszczak, Fred Olness, Andrey Sapronov, Pavel Shvydkin, Katarzyna Wichmann, Oleksandr Zenaiev, and Marco Bonvini
Impact of low-$x$ resummation on QCD analysis of HERA data
14 pages, 12 figures. Additional studies and various improvements. EPJC version
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Fits to the final combined HERA deep-inelastic scattering cross-section data within the conventional DGLAP framework of QCD have shown some tension at low $x$ and low $Q^2$. A resolution of this tension incorporating $\ln(1/x)$-resummation terms into the HERAPDF fits is investigated using the xFitter program. The kin...
[ { "created": "Wed, 31 Jan 2018 21:00:14 GMT", "version": "v1" }, { "created": "Tue, 24 Jul 2018 16:23:30 GMT", "version": "v2" } ]
2018-07-25
[ [ "team", "xFitter Developers'", "" ], [ ":", "", "" ], [ "Abdolmaleki", "Hamed", "" ], [ "Bertone", "Valerio", "" ], [ "Britzger", "Daniel", "" ], [ "Camarda", "Stefano", "" ], [ "Cooper-Sarkar", "Amanda", "...
Fits to the final combined HERA deep-inelastic scattering cross-section data within the conventional DGLAP framework of QCD have shown some tension at low $x$ and low $Q^2$. A resolution of this tension incorporating $\ln(1/x)$-resummation terms into the HERAPDF fits is investigated using the xFitter program. The kinem...
hep-ph/0204119
Durmus Demir
D. A. Demir, Keith A. Olive, and M.B. Voloshin
The Forward-Backward Asymmetry of B to (pi,K) l^+ l^-: Supersymmetry at Work
18 pages; 11 eps figures; minor changes in text; journal version
Phys.Rev.D66:034015,2002
10.1103/PhysRevD.66.034015
UMN-TH-2047/02, TPI-MINN-02/07
hep-ph
null
We analyze the forward-backward asymmetry of the decays B to (pi,K) l^+ l^- with l = mu or tau in the framework of the constrained minimal supersymmetric standard model. We find that, the asymmetry is enhanced at large tan beta and depends strongly on the sign of the mu parameter. For mu > 0, the asymmetry is typical...
[ { "created": "Wed, 10 Apr 2002 18:53:48 GMT", "version": "v1" }, { "created": "Wed, 10 Apr 2002 20:44:49 GMT", "version": "v2" }, { "created": "Tue, 25 Jun 2002 21:44:58 GMT", "version": "v3" } ]
2009-09-15
[ [ "Demir", "D. A.", "" ], [ "Olive", "Keith A.", "" ], [ "Voloshin", "M. B.", "" ] ]
We analyze the forward-backward asymmetry of the decays B to (pi,K) l^+ l^- with l = mu or tau in the framework of the constrained minimal supersymmetric standard model. We find that, the asymmetry is enhanced at large tan beta and depends strongly on the sign of the mu parameter. For mu > 0, the asymmetry is typically...
hep-ph/0703024
Howard Baer
Howard Baer, Eun-Kyung Park, Xerxes Tata and Ting T. Wang
Collider and Dark Matter Phenomenology of Models with Mirage Unification
34 pages plus 42 EPS figures; version with high resolution figures is at http://www.hep.fsu.edu/~baer
JHEP 0706:033,2007
10.1088/1126-6708/2007/06/033
FSU-HEP-070228, UH-511-1100-07
hep-ph
null
We examine supersymmetric models with mixed modulus-anomaly mediated SUSY breaking (MM-AMSB) soft terms which get comparable contributions to SUSY breaking from moduli-mediation and anomaly-mediation. The apparent (mirage) unification of soft SUSY breaking terms at Q=mu_mir not associated with any physical threshold ...
[ { "created": "Fri, 2 Mar 2007 16:10:27 GMT", "version": "v1" }, { "created": "Thu, 3 May 2007 15:52:23 GMT", "version": "v2" } ]
2010-10-27
[ [ "Baer", "Howard", "" ], [ "Park", "Eun-Kyung", "" ], [ "Tata", "Xerxes", "" ], [ "Wang", "Ting T.", "" ] ]
We examine supersymmetric models with mixed modulus-anomaly mediated SUSY breaking (MM-AMSB) soft terms which get comparable contributions to SUSY breaking from moduli-mediation and anomaly-mediation. The apparent (mirage) unification of soft SUSY breaking terms at Q=mu_mir not associated with any physical threshold is...
1004.4692
Ben Kain
Ben Kain and Hong Y. Ling
Vortices in Bose-Einstein Condensate Dark Matter
10 pages, 3 figures; minor corrections, references added
Phys.Rev.D82:064042,2010
10.1103/PhysRevD.82.064042
null
hep-ph astro-ph.CO astro-ph.GA
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
If dark matter in the galactic halo is composed of bosons that form a Bose-Einstein condensate then it is likely that the rotation of the halo will lead to the nucleation of vortices. After a review of the Gross-Pitaevskii equation, the Thomas-Fermi approximation and vortices in general, we consider vortices in detai...
[ { "created": "Tue, 27 Apr 2010 01:53:51 GMT", "version": "v1" }, { "created": "Thu, 30 Sep 2010 14:26:44 GMT", "version": "v2" } ]
2014-11-20
[ [ "Kain", "Ben", "" ], [ "Ling", "Hong Y.", "" ] ]
If dark matter in the galactic halo is composed of bosons that form a Bose-Einstein condensate then it is likely that the rotation of the halo will lead to the nucleation of vortices. After a review of the Gross-Pitaevskii equation, the Thomas-Fermi approximation and vortices in general, we consider vortices in detail....
1804.10777
Sergei Demidov
Mikhail Danilov, Sergey Demidov, Dmitry Gorbunov
Constraints on hidden photons produced in nuclear reactors
5 pages, 1 figure, version accepted by PRL
Phys. Rev. Lett. 122, 041801 (2019)
10.1103/PhysRevLett.122.041801
INR-TH-2018-009
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
New light vector particles - hidden photons - are present in many extensions of the Standard Model of particle physics. They can be produced in nuclear reactors and registered by neutrino detectors. We obtain new limits on the models with the hidden photons from an analysis of published results of the TEXONO neutrino...
[ { "created": "Sat, 28 Apr 2018 09:52:07 GMT", "version": "v1" }, { "created": "Tue, 22 Jan 2019 10:09:17 GMT", "version": "v2" } ]
2019-02-06
[ [ "Danilov", "Mikhail", "" ], [ "Demidov", "Sergey", "" ], [ "Gorbunov", "Dmitry", "" ] ]
New light vector particles - hidden photons - are present in many extensions of the Standard Model of particle physics. They can be produced in nuclear reactors and registered by neutrino detectors. We obtain new limits on the models with the hidden photons from an analysis of published results of the TEXONO neutrino e...
2203.07729
Tarik Akan
Tarik Akan, Elif Cincioglu, Altug Ozpineci, Adnan Tegmen
Semileptonic B_c decays to P-wave charmonia in the light-cone QCDSR
25 pages, 9 figures, 7 tables, minor changes, typos corrected
null
10.1016/j.nuclphysa.2023.122642
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
B_c mesons are laboratories for probing heavy quark physics. Furthermore, they decay into charmonia and hence their decays can be used to analyze possible exotic charmonium. In this work, the semileptonic decays of B_c mesons into P wave charmonia are analysed using light cone QCD sum rules (LCSR). The distributions ...
[ { "created": "Tue, 15 Mar 2022 08:49:40 GMT", "version": "v1" }, { "created": "Tue, 6 Sep 2022 07:54:01 GMT", "version": "v2" }, { "created": "Mon, 27 Mar 2023 11:32:53 GMT", "version": "v3" } ]
2023-03-28
[ [ "Akan", "Tarik", "" ], [ "Cincioglu", "Elif", "" ], [ "Ozpineci", "Altug", "" ], [ "Tegmen", "Adnan", "" ] ]
B_c mesons are laboratories for probing heavy quark physics. Furthermore, they decay into charmonia and hence their decays can be used to analyze possible exotic charmonium. In this work, the semileptonic decays of B_c mesons into P wave charmonia are analysed using light cone QCD sum rules (LCSR). The distributions am...
2205.01574
Shokoufe Faraji
Shokoufe Faraji
Summary of the parallel session HR3
null
null
null
null
hep-ph gr-qc physics.hist-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This is the summary of the parallel session entitled "Time and Philosophy in Physics", chaired by Shokoufe Faraji at the sixteenth Marcel Grossmann Meeting. This parallel session aimed to discuss open issues related to Time and fundamental laws from different perspectives in a complementary point of view.
[ { "created": "Sun, 1 May 2022 03:46:19 GMT", "version": "v1" } ]
2022-05-04
[ [ "Faraji", "Shokoufe", "" ] ]
This is the summary of the parallel session entitled "Time and Philosophy in Physics", chaired by Shokoufe Faraji at the sixteenth Marcel Grossmann Meeting. This parallel session aimed to discuss open issues related to Time and fundamental laws from different perspectives in a complementary point of view.
1710.07758
Stefan Groote Dr.
S. Groote and J.G. K\"orner
Bread and butter physics: NLO electroweak corrections to polarized top quark decays
10 pages, 2 figures. Contribution to the proceedings of the XVII Workshop on High Energy Spin Physics DSPIN-17, September 11-15, Dubna (Russia)
Journal of Physics: Conference Series 938 (2018) 012053
10.1088/1742-6596/938/1/012053
MITP/17-072
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We report on the status of an ongoing calculation of the NLO electroweak corrections to sequential polarized top quark decays $t(\uparrow) \to X_b +W^+ (\to \ell^+ +\nu_\ell)$.
[ { "created": "Sat, 21 Oct 2017 06:04:34 GMT", "version": "v1" }, { "created": "Mon, 8 Jan 2018 12:10:05 GMT", "version": "v2" } ]
2018-01-09
[ [ "Groote", "S.", "" ], [ "Körner", "J. G.", "" ] ]
We report on the status of an ongoing calculation of the NLO electroweak corrections to sequential polarized top quark decays $t(\uparrow) \to X_b +W^+ (\to \ell^+ +\nu_\ell)$.
1310.5991
Osamu Seto
Nobuchika Okada and Osamu Seto
Gamma ray emission in Fermi bubbles and Higgs portal dark matter
13 pages, 4 figures, discussions and references added. typos corrected. the final journal version
Phys. Rev. D 89, 043525 (2014)
10.1103/PhysRevD.89.043525
HGU-CAP 026
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It has been recently pointed out that the excess of the gamma ray spectrum in the Fermi Bubbles at low latitude can be well explained by the annihilation of dark matter particles. The best-fit candidate corresponds to the annihilation of a dark matter with mass of around $62$ GeV into $b \bar{b}$ with the cross secti...
[ { "created": "Tue, 22 Oct 2013 17:20:13 GMT", "version": "v1" }, { "created": "Tue, 11 Mar 2014 07:33:34 GMT", "version": "v2" } ]
2015-06-17
[ [ "Okada", "Nobuchika", "" ], [ "Seto", "Osamu", "" ] ]
It has been recently pointed out that the excess of the gamma ray spectrum in the Fermi Bubbles at low latitude can be well explained by the annihilation of dark matter particles. The best-fit candidate corresponds to the annihilation of a dark matter with mass of around $62$ GeV into $b \bar{b}$ with the cross section...
hep-ph/0601031
Bo-Qiang Ma
Nan Li, Bo-Qiang Ma
Energy scale independence of Koide's relation for quark and lepton masses
16 Latex pages, 2 figures, final version to appear in PRD
Phys.Rev. D73 (2006) 013009
10.1103/PhysRevD.73.013009
null
hep-ph
null
Koide's mass relation of charged leptons has been extended to quarks and neutrinos, and we prove here that this relation is independent of energy scale in a huge energy range from $1 {GeV}$ to $2\times10^{16} {GeV}$. By using the parameters $k_u$, $k_d$ and $k_{\nu}$ to describe the deviations of quarks and neutrinos...
[ { "created": "Thu, 5 Jan 2006 01:17:19 GMT", "version": "v1" }, { "created": "Sun, 15 Jan 2006 04:19:37 GMT", "version": "v2" } ]
2009-11-11
[ [ "Li", "Nan", "" ], [ "Ma", "Bo-Qiang", "" ] ]
Koide's mass relation of charged leptons has been extended to quarks and neutrinos, and we prove here that this relation is independent of energy scale in a huge energy range from $1 {GeV}$ to $2\times10^{16} {GeV}$. By using the parameters $k_u$, $k_d$ and $k_{\nu}$ to describe the deviations of quarks and neutrinos f...
1204.5495
Min-Seok Seo
Jihn E. Kim, Min-Seok Seo
Mixing of axino and goldstino, and axino mass
11 pages, 5 figures, Formulae corrected
null
10.1016/j.nuclphysb.2012.06.018
null
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Axino, related to the SUSY transformation of axion, can mix with goldstino in principle. This case is realized when some superfields carrying nonvanishing Peccei-Quinn charges develop both scalar VEVs and F-terms. In this case, we present a proper definition of axion and axino. With this definition, we present the QC...
[ { "created": "Tue, 24 Apr 2012 21:00:20 GMT", "version": "v1" }, { "created": "Mon, 2 Jul 2012 00:52:57 GMT", "version": "v2" } ]
2015-06-04
[ [ "Kim", "Jihn E.", "" ], [ "Seo", "Min-Seok", "" ] ]
Axino, related to the SUSY transformation of axion, can mix with goldstino in principle. This case is realized when some superfields carrying nonvanishing Peccei-Quinn charges develop both scalar VEVs and F-terms. In this case, we present a proper definition of axion and axino. With this definition, we present the QCD ...
2212.08685
Daniel Green
Daniel Green
TASI Lectures on Cosmic Signals of Fundamental Physics
72 pages, 14 figures, 2 tables
null
null
null
hep-ph astro-ph.CO gr-qc hep-th
http://creativecommons.org/licenses/by/4.0/
The history of the Universe and the forces that shaped it are encoded in maps of the cosmos. From understanding these maps, we gain insights into nature that are inaccessible by other means. Unfortunately, the connection between fundamental physics and cosmic observables is often left to experts (and/or computers), m...
[ { "created": "Fri, 16 Dec 2022 19:29:09 GMT", "version": "v1" } ]
2022-12-20
[ [ "Green", "Daniel", "" ] ]
The history of the Universe and the forces that shaped it are encoded in maps of the cosmos. From understanding these maps, we gain insights into nature that are inaccessible by other means. Unfortunately, the connection between fundamental physics and cosmic observables is often left to experts (and/or computers), mak...
2405.07165
Surender Verma Ph. D.
Labh Singh, Monal Kashav and Surender Verma
Minimal Type-I Dirac seesaw and Leptogenesis under $A_{4}$ modular invariance
22 pages, 8 figures
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We present a Dirac mass model based on $A_{4}$ modular symmetry within Type-I seesaw framework. This extension of Standard Model requires three right-handed neutrinos and three heavy Dirac fermions superfields, all singlet under $SU(2)_{L}$ symmetry. The scalar sector is extended by the inclusion of a $SU(2)_{L}$ sin...
[ { "created": "Sun, 12 May 2024 05:16:26 GMT", "version": "v1" } ]
2024-05-14
[ [ "Singh", "Labh", "" ], [ "Kashav", "Monal", "" ], [ "Verma", "Surender", "" ] ]
We present a Dirac mass model based on $A_{4}$ modular symmetry within Type-I seesaw framework. This extension of Standard Model requires three right-handed neutrinos and three heavy Dirac fermions superfields, all singlet under $SU(2)_{L}$ symmetry. The scalar sector is extended by the inclusion of a $SU(2)_{L}$ singl...
1606.06695
Heinrich P\"as
Elke Aeikens, Heinrich P\"as, Sandip Pakvasa, Thomas J. Weiler
Big Bang Nucleosynthesis in the presence of sterile neutrinos with altered dispersion relations
15 pages, 7 figures
Phys. Rev. D 94, 113010 (2016)
10.1103/PhysRevD.94.113010
null
hep-ph astro-ph.CO nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Big Bang Nucleosynthesis imposes stringent bounds on light sterile neutrinos mixing with the active flavors. Here we discuss how altered dispersion relations can weaken such bounds and allow compatibility of new sterile neutrino degrees of freedom with a successful generation of the light elements in the early Univer...
[ { "created": "Tue, 21 Jun 2016 18:26:44 GMT", "version": "v1" } ]
2016-12-28
[ [ "Aeikens", "Elke", "" ], [ "Päs", "Heinrich", "" ], [ "Pakvasa", "Sandip", "" ], [ "Weiler", "Thomas J.", "" ] ]
Big Bang Nucleosynthesis imposes stringent bounds on light sterile neutrinos mixing with the active flavors. Here we discuss how altered dispersion relations can weaken such bounds and allow compatibility of new sterile neutrino degrees of freedom with a successful generation of the light elements in the early Universe...
0805.3719
Marcelo Loewe
M. Loewe, Jorge Ruiz A. and J. C. Rojas
Thermal Behaviour of $\pi-\pi$ Scattering Lengths in the Nambu--Jona-Lasinio model
Revtex4, 6 pages, 5 figures
Phys.Rev.D78:096007,2008
10.1103/PhysRevD.78.096007
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the thermal evolution of $\pi-\pi$ scattering lengths, in the frame of the Nambu--Jona-Lasinio model. The thermal corrections were calculated at the one loop level using Thermofield Dynamics. We present also results for the pion thermal mass. Our procedure implies the modeling of a propagating scalar mes...
[ { "created": "Fri, 23 May 2008 20:57:44 GMT", "version": "v1" } ]
2008-12-18
[ [ "Loewe", "M.", "" ], [ "A.", "Jorge Ruiz", "" ], [ "Rojas", "J. C.", "" ] ]
We calculate the thermal evolution of $\pi-\pi$ scattering lengths, in the frame of the Nambu--Jona-Lasinio model. The thermal corrections were calculated at the one loop level using Thermofield Dynamics. We present also results for the pion thermal mass. Our procedure implies the modeling of a propagating scalar meson...
1108.0909
Keith Hamilton
Simone Alioli, Keith Hamilton, Emanuele Re
Practical improvements and merging of POWHEG simulations for vector boson production
41 pages, 19 figures. Figures updated from v1.5 to 1.6 of external Rivet program, reference line in figs. 4,5,11 corrected. Citations added, text unchanged
null
10.1007/JHEP09(2011)104
DESY 11-133, IPPP/11/43, DCPT/11/86, MCnet/11/17, LPN11-43
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this article we generalise POWHEG next-to-leading order parton shower (NLOPS) simulations of vector boson production and vector boson production in association with a single jet, to give matrix element corrected MENLOPS simulations. In so doing we extend and provide, for the first time, an exact and faithful imple...
[ { "created": "Wed, 3 Aug 2011 18:28:04 GMT", "version": "v1" }, { "created": "Wed, 10 Aug 2011 15:58:17 GMT", "version": "v2" } ]
2015-05-30
[ [ "Alioli", "Simone", "" ], [ "Hamilton", "Keith", "" ], [ "Re", "Emanuele", "" ] ]
In this article we generalise POWHEG next-to-leading order parton shower (NLOPS) simulations of vector boson production and vector boson production in association with a single jet, to give matrix element corrected MENLOPS simulations. In so doing we extend and provide, for the first time, an exact and faithful impleme...
2405.16162
Zhen-Yu Li
Zhen-Yu Li, Guo-Liang Yu, Zhi-Gang Wang, Jian-Zhong Gu
Heavy-quark dominance and fine structure of excited heavy baryons $\Sigma_{Q}$, $\Xi '_{Q}$ and $\Omega_{Q}$
8 pages, 3 figures, 2 tables
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
In the framework of the relativized quark model, the calculation of spin-orbit interactions is improved by considering the contribution from the light quark cluster in a singly heavy baryon. It modifies the energy level splitting of the orbital excitation significantly and causes the emergence of fine structures for ...
[ { "created": "Sat, 25 May 2024 10:10:52 GMT", "version": "v1" }, { "created": "Sat, 3 Aug 2024 02:28:24 GMT", "version": "v2" } ]
2024-08-06
[ [ "Li", "Zhen-Yu", "" ], [ "Yu", "Guo-Liang", "" ], [ "Wang", "Zhi-Gang", "" ], [ "Gu", "Jian-Zhong", "" ] ]
In the framework of the relativized quark model, the calculation of spin-orbit interactions is improved by considering the contribution from the light quark cluster in a singly heavy baryon. It modifies the energy level splitting of the orbital excitation significantly and causes the emergence of fine structures for $\...
2405.06509
Julien Froustey
Julien Froustey, Cyril Pitrou
Constraints on primordial lepton asymmetries with full neutrino transport
22 pages, 16 figures. Datasets available at [https://doi.org/10.5281/zenodo.11123226]
null
null
N3AS-24-015
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Primordial neutrino-antineutrino asymmetries can be constrained through big-bang nucleosynthesis (BBN) relic abundances and cosmic microwave background (CMB) anisotropies, both observables being sensitive to neutrino properties. The latter constraint, which is due to gravitational effects from all neutrino flavors, i...
[ { "created": "Fri, 10 May 2024 14:42:38 GMT", "version": "v1" } ]
2024-05-13
[ [ "Froustey", "Julien", "" ], [ "Pitrou", "Cyril", "" ] ]
Primordial neutrino-antineutrino asymmetries can be constrained through big-bang nucleosynthesis (BBN) relic abundances and cosmic microwave background (CMB) anisotropies, both observables being sensitive to neutrino properties. The latter constraint, which is due to gravitational effects from all neutrino flavors, is ...
hep-ph/0212382
Alan Kostelecky
Alan Kostelecky and Austin Pickering
Vacuum Photon Splitting in Lorentz-Violating Quantum Electrodynamics
4 pages, minor wording changes, references added, accepted in Physical Review Letters
Phys.Rev.Lett.91:031801,2003
10.1103/PhysRevLett.91.031801
IUHET 453, December 2002
hep-ph hep-th
null
Radiative corrections arising from Lorentz violation in the fermion sector induce a nonzero amplitude for vacuum photon splitting. At one loop, the on-shell amplitude acquires both CPT-even and CPT-odd contributions forbidden in conventional electrodynamics.
[ { "created": "Sat, 28 Dec 2002 16:20:44 GMT", "version": "v1" }, { "created": "Fri, 20 Jun 2003 20:12:36 GMT", "version": "v2" } ]
2009-09-25
[ [ "Kostelecky", "Alan", "" ], [ "Pickering", "Austin", "" ] ]
Radiative corrections arising from Lorentz violation in the fermion sector induce a nonzero amplitude for vacuum photon splitting. At one loop, the on-shell amplitude acquires both CPT-even and CPT-odd contributions forbidden in conventional electrodynamics.
hep-ph/9406337
null
Stephen Mrenna and G.L. Kane
Possible Detection of a Higgs Boson at Higher Luminosity Hadron Colliders
20 REVTEX pages plus 3 figures using psfig.sty, CIT 68--1938
null
null
null
hep-ph
null
We have examined how a Standard Model or Supersymmetric Higgs boson h might be detected at possible hadron colliders. The channels W(to ell nu)h(to b b~), Z(to ell ell~)h(to b b~) and W/Z(to jets)h(to tau+ tau-) are most useful. The results imply that h with mass M_h can be detected or excluded for M_h between about ...
[ { "created": "Sat, 18 Jun 1994 00:34:30 GMT", "version": "v1" } ]
2016-09-01
[ [ "Mrenna", "Stephen", "" ], [ "Kane", "G. L.", "" ] ]
We have examined how a Standard Model or Supersymmetric Higgs boson h might be detected at possible hadron colliders. The channels W(to ell nu)h(to b b~), Z(to ell ell~)h(to b b~) and W/Z(to jets)h(to tau+ tau-) are most useful. The results imply that h with mass M_h can be detected or excluded for M_h between about 80...
hep-ph/9702331
Hoang
A.H. Hoang (University of California, San Diego)
The Vacuum Polarization Function to O(alpha^2) Accuracy Near Threshold and Darwin Corrections
26 pages, latex, five ps figures included
Phys. Rev. D 57, 1615 (1998)
10.1103/PhysRevD.57.1615
UCSD/PTH 97-04
hep-ph
null
The QED vacuum polarization function is calculated to O(alpha^2) (next-to-leading order) accuracy in the threshold regime by using the concept of effective field theories to resum diagrams with the instantaneous Coulomb exchange of longitudinally polarized photons. It is shown that the O(alpha^2) contributions are of...
[ { "created": "Thu, 13 Feb 1997 21:08:35 GMT", "version": "v1" } ]
2016-08-25
[ [ "Hoang", "A. H.", "", "University of California, San Diego" ] ]
The QED vacuum polarization function is calculated to O(alpha^2) (next-to-leading order) accuracy in the threshold regime by using the concept of effective field theories to resum diagrams with the instantaneous Coulomb exchange of longitudinally polarized photons. It is shown that the O(alpha^2) contributions are of o...
1502.07987
Peter Millington
P. S. Bhupal Dev, Peter Millington, Apostolos Pilaftsis, Daniele Teresi
Flavour effects in Resonant Leptogenesis from semi-classical and Kadanoff-Baym approaches
15 pages, 4 figures; one reference added; contribution to the Proceedings of DISCRETE 2014, London
2015 J. Phys.: Conf. Ser. 631 012087
10.1088/1742-6596/631/1/012087
MAN/HEP/2015/01, TUM-HEP-982-15
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Flavour effects play an important role in the statistical evolution of particle number densities in several particle physics phenomena. We present a fully flavour-covariant formalism for transport phenomena, in order to consistently capture all flavour effects in the system. We explicitly study the scenario of Resona...
[ { "created": "Fri, 27 Feb 2015 17:56:04 GMT", "version": "v1" }, { "created": "Fri, 24 Apr 2015 16:30:23 GMT", "version": "v2" }, { "created": "Wed, 26 Aug 2015 06:41:58 GMT", "version": "v3" } ]
2015-08-27
[ [ "Dev", "P. S. Bhupal", "" ], [ "Millington", "Peter", "" ], [ "Pilaftsis", "Apostolos", "" ], [ "Teresi", "Daniele", "" ] ]
Flavour effects play an important role in the statistical evolution of particle number densities in several particle physics phenomena. We present a fully flavour-covariant formalism for transport phenomena, in order to consistently capture all flavour effects in the system. We explicitly study the scenario of Resonant...
hep-ph/9508202
Alexander Krasnitz
J. Ambj{\o}rn and A. Krasnitz
The classical sphaleron transition rate exists and is equal to $1.1(\alpha_w T)^4$
12 pages, plain LaTeX, figures part of the LaTeX source, minor errors corrected, acknowledgment added, to be published in Phys. Lett. B
Phys.Lett. B362 (1995) 97-104
10.1016/0370-2693(95)01157-L
NBI-HE-95-23
hep-ph hep-lat hep-th
null
Results of a large scale numerical simulation show that the high temperature Chern-Simons number diffusion rate in the electroweak theory has a classical limit $\Gamma = \kappa (\alpha_w T)^4$, where $\kappa = 1.09\pm 0.04$ and $\alpha_w$ is the weak fine structure constant.
[ { "created": "Tue, 1 Aug 1995 11:42:15 GMT", "version": "v1" }, { "created": "Tue, 26 Sep 1995 12:52:08 GMT", "version": "v2" } ]
2009-10-28
[ [ "Ambjørn", "J.", "" ], [ "Krasnitz", "A.", "" ] ]
Results of a large scale numerical simulation show that the high temperature Chern-Simons number diffusion rate in the electroweak theory has a classical limit $\Gamma = \kappa (\alpha_w T)^4$, where $\kappa = 1.09\pm 0.04$ and $\alpha_w$ is the weak fine structure constant.
hep-ph/0609232
Mikolaj Misiak
M.Misiak, H.M.Asatrian, K.Bieri, M.Czakon, A.Czarnecki, T.Ewerth, A.Ferroglia, P.Gambino, M.Gorbahn, C.Greub, U.Haisch, A.Hovhannisyan, T.Hurth, A.Mitov, V.Poghosyan, M.Slusarczyk and M.Steinhauser
Estimate of BR(B -> X_s gamma) at O(alpha_s^2)
4 pages, 4 figures. Version accepted by the PRL. Words disallowed by the journal removed from the title. References updated and a note added
Phys.Rev.Lett.98:022002,2007
10.1103/PhysRevLett.98.022002
IFT-18/2006, CERN-PH-TH/2006-184, YERPHI-1608(6), Freiburg-THEP 06/13, DFTT-20/2006, SFB/CPP-06-45, TTP06-26, ZU-TH 22/06, SLAC-PUB-12117, DESY 06-168
hep-ph
null
Combining our results for various O(alpha_s^2) corrections to the weak radiative B-meson decay, we are able to present the first estimate of the branching ratio at the next-to-next-to-leading order in QCD. We find BR(B -> X_s gamma) = (3.15 +_ 0.23) x 10^-4 for E_gamma > 1.6 GeV in the B-meson rest frame. The four ty...
[ { "created": "Fri, 22 Sep 2006 17:36:46 GMT", "version": "v1" }, { "created": "Sun, 31 Dec 2006 19:05:03 GMT", "version": "v2" } ]
2008-11-26
[ [ "Misiak", "M.", "" ], [ "Asatrian", "H. M.", "" ], [ "Bieri", "K.", "" ], [ "Czakon", "M.", "" ], [ "Czarnecki", "A.", "" ], [ "Ewerth", "T.", "" ], [ "Ferroglia", "A.", "" ], [ "Gambino", "P.",...
Combining our results for various O(alpha_s^2) corrections to the weak radiative B-meson decay, we are able to present the first estimate of the branching ratio at the next-to-next-to-leading order in QCD. We find BR(B -> X_s gamma) = (3.15 +_ 0.23) x 10^-4 for E_gamma > 1.6 GeV in the B-meson rest frame. The four type...
1209.6375
Gustavo Marques Tavares
Christian Gross, Gustavo Marques Tavares, Martin Schmaltz and Christian Spethmann
Light axigluon explanation of the Tevatron ttbar asymmetry and multijet signals at the LHC
35 pages, 15 figures; references added
null
10.1103/PhysRevD.87.014004
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The ttbar asymmetry measured at the Tevatron continues to disagree with Standard Model predictions at the 3 sigma level. We update the status of the phenomenological light axigluon model in explaining the asymmetry data, taking into account constraints from the charge asymmetry at the LHC and the ttbar cross section ...
[ { "created": "Thu, 27 Sep 2012 20:57:12 GMT", "version": "v1" }, { "created": "Wed, 17 Oct 2012 19:38:15 GMT", "version": "v2" } ]
2013-05-30
[ [ "Gross", "Christian", "" ], [ "Tavares", "Gustavo Marques", "" ], [ "Schmaltz", "Martin", "" ], [ "Spethmann", "Christian", "" ] ]
The ttbar asymmetry measured at the Tevatron continues to disagree with Standard Model predictions at the 3 sigma level. We update the status of the phenomenological light axigluon model in explaining the asymmetry data, taking into account constraints from the charge asymmetry at the LHC and the ttbar cross section at...
1502.07260
Yithsbey Giraldo
Yithsbey Giraldo
Reply to "Comment on "Texture Zeros and WB Transformations in the Quark Sector of the Standard Model"
null
Phys. Rev. D 91, 038302 (2015)
10.1103/PhysRevD.91.038302
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We respond to the comments of S. Sharma et al. [Phys. Rev. D 91, 038301 (2015)] on my recent paper, Y. Giraldo [Phys. Rev. D 86, 093021 (2012)]. In their comments, they begin discussing a particular class of five-zero texture non-Fritzsch-like quark mass matrix, which was proposed by me, and questioning its validity....
[ { "created": "Wed, 25 Feb 2015 17:19:45 GMT", "version": "v1" } ]
2015-06-24
[ [ "Giraldo", "Yithsbey", "" ] ]
We respond to the comments of S. Sharma et al. [Phys. Rev. D 91, 038301 (2015)] on my recent paper, Y. Giraldo [Phys. Rev. D 86, 093021 (2012)]. In their comments, they begin discussing a particular class of five-zero texture non-Fritzsch-like quark mass matrix, which was proposed by me, and questioning its validity. T...
hep-ph/0403095
Josep F. Oliver
Josep F. Oliver
Aspects of universal extra dimensional models and their latticized versions
Ph.D. Thesis, 94 pages
null
null
null
hep-ph
null
In this work some aspects of models with universal extra dimensions are studied. In particular, in the case of models with one universal extra dimension their phenomenology is investigated and used to extract bounds on the size of the extra dimension. In addition, the phenomenology of their latticized counterparts is...
[ { "created": "Tue, 9 Mar 2004 09:38:20 GMT", "version": "v1" } ]
2007-05-23
[ [ "Oliver", "Josep F.", "" ] ]
In this work some aspects of models with universal extra dimensions are studied. In particular, in the case of models with one universal extra dimension their phenomenology is investigated and used to extract bounds on the size of the extra dimension. In addition, the phenomenology of their latticized counterparts is a...
1112.0626
Stanley J. Brodsky
Stanley J. Brodsky
Transversity from First Principles in QCD
Presented at Transversity 2011: The 3rd International Workshop On Transverse Polarization Phenomena In Hard Scattering, 29 August - 2 September 2011, Veli Lozinj, Croatia
null
10.1393/ncc/i2012-11180-2
SLAC-PUB-14704
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Transversity observables, such as the T-odd single-spin asymmetry measured in deep inelastic lepton scattering on polarized protons, and the distributions which are measured in deeply virtual Compton scattering provide important constraints on the fundamental quark and gluon structure of the proton. In this talk I di...
[ { "created": "Sat, 3 Dec 2011 07:21:37 GMT", "version": "v1" }, { "created": "Wed, 7 Dec 2011 06:29:27 GMT", "version": "v2" } ]
2022-03-02
[ [ "Brodsky", "Stanley J.", "" ] ]
Transversity observables, such as the T-odd single-spin asymmetry measured in deep inelastic lepton scattering on polarized protons, and the distributions which are measured in deeply virtual Compton scattering provide important constraints on the fundamental quark and gluon structure of the proton. In this talk I disc...
0905.3329
Dmitri Antonov
Dmitri Antonov
Shear viscosity of the gluon plasma in the stochastic-vacuum approach
19 pages, 4 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Shear viscosity of the gluon plasma in SU(3) YM theory is calculated nonperturbatively, within the stochastic vacuum model. The result for the ratio of the shear viscosity to the entropy density, proportional to the squared chromo-magnetic gluon condensate and the fifth power of the correlation length of the chromo-m...
[ { "created": "Wed, 20 May 2009 15:02:17 GMT", "version": "v1" } ]
2009-05-21
[ [ "Antonov", "Dmitri", "" ] ]
Shear viscosity of the gluon plasma in SU(3) YM theory is calculated nonperturbatively, within the stochastic vacuum model. The result for the ratio of the shear viscosity to the entropy density, proportional to the squared chromo-magnetic gluon condensate and the fifth power of the correlation length of the chromo-mag...
1301.5167
Luis Ibanez
Luis E. Ibanez and Irene Valenzuela
The Higgs Mass as a Signature of Heavy SUSY
25 pages, 7 figures. Slight changes in figures. Conclusions unchanged
null
10.1007/JHEP05(2013)064
IFT-UAM/CSIC-13-008; FTUAM-13-126
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We compute the mass of the Higgs particle in a scheme in which SUSY is broken at a large scale M_{SS} well above the electroweak scale M_{EW}. Below M_{SS} one assumes one is just left with the SM with a fine-tuned Higgs potential. Under standard unification assumptions one can compute the mass of the Higgs particle ...
[ { "created": "Tue, 22 Jan 2013 12:25:38 GMT", "version": "v1" }, { "created": "Wed, 20 Feb 2013 10:56:03 GMT", "version": "v2" }, { "created": "Fri, 1 Mar 2013 09:18:07 GMT", "version": "v3" } ]
2015-06-12
[ [ "Ibanez", "Luis E.", "" ], [ "Valenzuela", "Irene", "" ] ]
We compute the mass of the Higgs particle in a scheme in which SUSY is broken at a large scale M_{SS} well above the electroweak scale M_{EW}. Below M_{SS} one assumes one is just left with the SM with a fine-tuned Higgs potential. Under standard unification assumptions one can compute the mass of the Higgs particle as...
1904.11249
Antonio Capolupo Dr
A. Capolupo and S.M. Giampaolo
Neutrino nature, total and geometric phase
5 pages, 2 figures, presented at 9th International Conference DICE2018: Spacetime - Matter - Quantum Mechanics : From discrete structures and dynamics to top-down causation
Physics Letters B Volume 792, 10 May 2019, Pages 298-303
10.1088/1742-6596/1275/1/012053
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the total and the geometric phase associated with neutrino mixing and we show that the phases produced by the neutrino oscillations have different values depending on the representation of the mixing matrix and on the neutrino nature. Therefore the phases represent a possible probe to distinguish between Dir...
[ { "created": "Thu, 25 Apr 2019 10:16:36 GMT", "version": "v1" } ]
2020-01-08
[ [ "Capolupo", "A.", "" ], [ "Giampaolo", "S. M.", "" ] ]
We study the total and the geometric phase associated with neutrino mixing and we show that the phases produced by the neutrino oscillations have different values depending on the representation of the mixing matrix and on the neutrino nature. Therefore the phases represent a possible probe to distinguish between Dirac...
hep-ph/0406220
Sergey Kulagin
S.A. Kulagin (Institute for Nuclear Research, Moscow)
On the Paschos-Wolfenstein Relationship for Nuclei
6 pages, talk at XXXIX Recontres de Moriond "Electroweak Interactions and Unified Theories", La Thuile, March 21-28, 2004
null
null
null
hep-ph
null
Nuclear effects and QCD perturbative corrections to the Paschos-Wolfenstein relationship are discussed. We argue that perturbative corrections largely cancel out in this relationship for total cross sections while the neutron excess correction in heavy nuclei is enhanced by Fermi motion and nuclear binding effects. T...
[ { "created": "Mon, 21 Jun 2004 11:58:26 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kulagin", "S. A.", "", "Institute for Nuclear Research, Moscow" ] ]
Nuclear effects and QCD perturbative corrections to the Paschos-Wolfenstein relationship are discussed. We argue that perturbative corrections largely cancel out in this relationship for total cross sections while the neutron excess correction in heavy nuclei is enhanced by Fermi motion and nuclear binding effects. The...
1104.5613
Rikkert Frederix
Rikkert Frederix, Stefano Frixione, Valentin Hirschi, Fabio Maltoni, Roberto Pittau, Paolo Torrielli
Scalar and pseudoscalar Higgs production in association with a top-antitop pair
15 pages, 8 figures, published version. (2 references added, improved description of the decay of the top and Higgs bosons)
Phys.Lett.B701:427-433,2011
10.1016/j.physletb.2011.06.012
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present the calculation of scalar and pseudoscalar Higgs production in association with a top-antitop pair to the next-to-leading order (NLO) accuracy in QCD, interfaced with parton showers according to the MC@NLO formalism. We apply our results to the cases of light and very light Higgs boson production at the LH...
[ { "created": "Fri, 29 Apr 2011 12:32:25 GMT", "version": "v1" }, { "created": "Fri, 17 Jun 2011 22:03:58 GMT", "version": "v2" } ]
2011-07-06
[ [ "Frederix", "Rikkert", "" ], [ "Frixione", "Stefano", "" ], [ "Hirschi", "Valentin", "" ], [ "Maltoni", "Fabio", "" ], [ "Pittau", "Roberto", "" ], [ "Torrielli", "Paolo", "" ] ]
We present the calculation of scalar and pseudoscalar Higgs production in association with a top-antitop pair to the next-to-leading order (NLO) accuracy in QCD, interfaced with parton showers according to the MC@NLO formalism. We apply our results to the cases of light and very light Higgs boson production at the LHC,...
0806.4503
Piet Mulders J
P.J. Mulders
Single spin asymmetries and gluonic pole matrix elements
4 pages, 1 figure, contribution to DIS2008 (April 2008), London (UK)
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the emergence of single spin asymmetries (SSA) in hard processes using transverse momentum dependent (TMD) distribution and fragmentation functions. Specifically, the description of SSA involves time reversal-odd functions. Process-dependence (non-universality) in measurements of SSA can be attributed ...
[ { "created": "Fri, 27 Jun 2008 12:23:28 GMT", "version": "v1" } ]
2008-06-30
[ [ "Mulders", "P. J.", "" ] ]
We investigate the emergence of single spin asymmetries (SSA) in hard processes using transverse momentum dependent (TMD) distribution and fragmentation functions. Specifically, the description of SSA involves time reversal-odd functions. Process-dependence (non-universality) in measurements of SSA can be attributed to...
2406.03755
Jan Nemchik
B.Z. Kopeliovich and J. Nemchik
Flavor-independent yield of high-$p_T$ hadrons from nuclear collisions
9 pages, 5 figures
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Data on high-$p_T$ hadron production in heavy ion collisions at Feynman $x_F=0$ indicate at universality of the observed nuclear suppression. Our analysis of the production mechanisms demonstrates important role of the color transparency effects which make the survival probability of a quark-antiquark dipole independ...
[ { "created": "Thu, 6 Jun 2024 05:35:33 GMT", "version": "v1" } ]
2024-06-07
[ [ "Kopeliovich", "B. Z.", "" ], [ "Nemchik", "J.", "" ] ]
Data on high-$p_T$ hadron production in heavy ion collisions at Feynman $x_F=0$ indicate at universality of the observed nuclear suppression. Our analysis of the production mechanisms demonstrates important role of the color transparency effects which make the survival probability of a quark-antiquark dipole independen...
1206.4038
Pilar Coloma
Pilar Coloma, Tracey Li and Silvia Pascoli
A comparative study of long-baseline superbeams within LAGUNA for large $\theta_{13}$
32 pages, 10 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Daya Bay and RENO experiments have recently observed a non-zero $\theta_{13}$ at more than $5\sigma$ CL. This has important consequences for future neutrino oscillation experiments. We analyze these within the LAGUNA design study which considers seven possible locations for a European neutrino observatory for pro...
[ { "created": "Mon, 18 Jun 2012 19:53:28 GMT", "version": "v1" } ]
2012-06-19
[ [ "Coloma", "Pilar", "" ], [ "Li", "Tracey", "" ], [ "Pascoli", "Silvia", "" ] ]
The Daya Bay and RENO experiments have recently observed a non-zero $\theta_{13}$ at more than $5\sigma$ CL. This has important consequences for future neutrino oscillation experiments. We analyze these within the LAGUNA design study which considers seven possible locations for a European neutrino observatory for proto...
2312.10296
Xianhui Zhong
Qian Deng, Ru-Hui Ni, Qi Li, and Xian-Hui Zhong
Charmonia in an unquenched quark model
24 pages, 3 figures, 15 tables
null
null
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
In this work, we study the charmonium spectrum within an unquenched quark model including coupled-channel effects. In couple-channel calculations, we include all of the opened charmed meson channels with the once-subtracted method, meanwhile adopt a suppressed factor to soften the hard vertices given by the $^3P_0$ m...
[ { "created": "Sat, 16 Dec 2023 02:47:27 GMT", "version": "v1" } ]
2023-12-19
[ [ "Deng", "Qian", "" ], [ "Ni", "Ru-Hui", "" ], [ "Li", "Qi", "" ], [ "Zhong", "Xian-Hui", "" ] ]
In this work, we study the charmonium spectrum within an unquenched quark model including coupled-channel effects. In couple-channel calculations, we include all of the opened charmed meson channels with the once-subtracted method, meanwhile adopt a suppressed factor to soften the hard vertices given by the $^3P_0$ mod...
hep-ph/0112038
Ma Jian-ping
J.P. Ma
Spin Alignment of Heavy Meson Revisited
6 pages, Talk given at 3rd Circum-Pan-Pacific Symposium on "High Energy Spin Physics", Beijing, China, 8-13, 2001
Int.J.Mod.Phys. A18 (2003) 1351-1356
10.1142/S0217751X03014708
null
hep-ph
null
Using heavy quark effective theory a factorized form for inclusive production rate of a heavy meson can be obtained, in which the nonperturbative effect related to the heavy meson can be characterized by matrix elements defined in the heavy quark effective theory. Using this factorization, predictions for the full sp...
[ { "created": "Tue, 4 Dec 2001 01:01:05 GMT", "version": "v1" } ]
2009-11-07
[ [ "Ma", "J. P.", "" ] ]
Using heavy quark effective theory a factorized form for inclusive production rate of a heavy meson can be obtained, in which the nonperturbative effect related to the heavy meson can be characterized by matrix elements defined in the heavy quark effective theory. Using this factorization, predictions for the full spin...
1710.02319
Alexander Rothkopf
Brandon Krouppa, Alexander Rothkopf and Michael Strickland
Bottomonium suppression using a lattice QCD vetted potential
27 pages, 6 figures
Phys. Rev. D 97, 016017 (2018)
10.1103/PhysRevD.97.016017
null
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We estimate bottomonium yields in relativistic heavy-ion collisions using a lattice QCD vetted, complex-valued, heavy-quark potential embedded in a realistic, hydrodynamically evolving medium background. We find that the lattice-vetted functional form and temperature dependence of the proper heavy-quark potential dra...
[ { "created": "Fri, 6 Oct 2017 09:09:30 GMT", "version": "v1" } ]
2018-01-31
[ [ "Krouppa", "Brandon", "" ], [ "Rothkopf", "Alexander", "" ], [ "Strickland", "Michael", "" ] ]
We estimate bottomonium yields in relativistic heavy-ion collisions using a lattice QCD vetted, complex-valued, heavy-quark potential embedded in a realistic, hydrodynamically evolving medium background. We find that the lattice-vetted functional form and temperature dependence of the proper heavy-quark potential drama...
hep-ph/0003043
Willy van Neerven
W.L. van Neerven
Higher Order Corrections in Perturbative Quantum Chromo Dynamics
10 pages, LaTex. To appear in PRAMANA journal of physics
Pramana 55:101-111,2000
10.1007/s12043-000-0087-0
null
hep-ph
null
We present some techniques which have been developed recently or in the recent past to compute Feynman graphs beyond one-loop order. These techniques are useful to compute the three-loop splitting functions in QCD and to obtain the complete second order QED corrections to Bhabha scattering.
[ { "created": "Mon, 6 Mar 2000 17:06:32 GMT", "version": "v1" } ]
2015-06-25
[ [ "van Neerven", "W. L.", "" ] ]
We present some techniques which have been developed recently or in the recent past to compute Feynman graphs beyond one-loop order. These techniques are useful to compute the three-loop splitting functions in QCD and to obtain the complete second order QED corrections to Bhabha scattering.
hep-ph/9505330
James V. Steele
James V. Steele, Hidenaga Yamagishi, and Ismail Zahed
Master Formula Approach to Chiral Symmetry Breaking: Pi-Pi scattering
17 pages, LaTeX, 1 postscript file of 12 figures in addition. Equation 2 is changed, the rest is the same
Nucl.Phys. A615 (1997) 305-324
10.1016/S0375-9474(96)00488-5
SUNY-NTG-95-14
hep-ph
null
The master formula approach to chiral symmetry breaking is used to analyze the phase shifts for $\pi\pi$ scattering in the elastic region. The results are in excellent agreement with the data for the phase shifts up to the K-K bar threshold. Our analysis shows that the pi-pi data near threshold in the scalar channel ...
[ { "created": "Wed, 17 May 1995 13:23:00 GMT", "version": "v1" }, { "created": "Sun, 28 May 1995 22:23:00 GMT", "version": "v2" } ]
2009-10-28
[ [ "Steele", "James V.", "" ], [ "Yamagishi", "Hidenaga", "" ], [ "Zahed", "Ismail", "" ] ]
The master formula approach to chiral symmetry breaking is used to analyze the phase shifts for $\pi\pi$ scattering in the elastic region. The results are in excellent agreement with the data for the phase shifts up to the K-K bar threshold. Our analysis shows that the pi-pi data near threshold in the scalar channel fa...
hep-ph/0003254
Martin Maul
Martin Maul (Lund U)
Semi-classical Description of Exclusive Meson Pair Production in $\gamma^*\gamma$ Scattering
26 pages, Revtex, one minor typo corrected (proof reading)
Phys.Rev.D63:036003,2001
10.1103/PhysRevD.63.036003
LU TP 00-08
hep-ph
null
A semi-classical picture is given for the production of exclusive meson pairs in \gamma\gamma^* scattering using elements of the Lund string fragmentation model, spin and C-parity conservation. The model can be generalized to the production of any few meson states in scattering reactions at intermediate momentum tran...
[ { "created": "Sun, 26 Mar 2000 16:31:57 GMT", "version": "v1" }, { "created": "Mon, 19 Jun 2000 12:04:11 GMT", "version": "v2" }, { "created": "Fri, 17 Nov 2000 13:33:47 GMT", "version": "v3" }, { "created": "Sat, 6 Jan 2001 15:35:31 GMT", "version": "v4" } ]
2011-07-19
[ [ "Maul", "Martin", "", "Lund U" ] ]
A semi-classical picture is given for the production of exclusive meson pairs in \gamma\gamma^* scattering using elements of the Lund string fragmentation model, spin and C-parity conservation. The model can be generalized to the production of any few meson states in scattering reactions at intermediate momentum transf...
hep-ph/0004192
Nora Brambilla
N. Brambilla and A. Vairo
The Role of the QCD Vacuum in the Heavy-Quark Bound State Dynamics
Invited talk presented at the Fifth Workshop on Quantum Chromodynamics, Villefranche-sur-Mer, France, 3-7 January 2000; 9 pages, sprocl.sty
Proceedings of the Fifth Workshop on Quantum Chromodynamics, 8-17, ed. H. Fried, B. Mueller and Y. Gabellini (World Scientific, Singapore, 2000)
null
HD-THEP-00-24
hep-ph hep-lat
null
The effective field theory approach allows a rigorous disentangling of high and low energy effects in the heavy quarkonium dynamics. Focusing in particular on the spectrum, we describe the nature of the non-perturbative effects and discuss our present knowledge of them.
[ { "created": "Thu, 20 Apr 2000 11:53:13 GMT", "version": "v1" } ]
2007-05-23
[ [ "Brambilla", "N.", "" ], [ "Vairo", "A.", "" ] ]
The effective field theory approach allows a rigorous disentangling of high and low energy effects in the heavy quarkonium dynamics. Focusing in particular on the spectrum, we describe the nature of the non-perturbative effects and discuss our present knowledge of them.
hep-ph/9309334
null
R. Casalbuoni, P. Chiappetta, A. Deandrea, S. De Curtis, D. Dominici and R. Gatto
The Bess Model at e+ e- Colliders
14 pages and 6 figures, TeX (uses epsf.tex for figures), UGVA-DPT 1993/09-836
null
null
null
hep-ph
null
We consider the possibility of detecting vector resonances from a strong electroweak sector, in the framework of the BESS model, at future $e^+ e^-$ colliders up to the TeV range. If the mass $M_V$ of the new vector boson multiplet is not far above or if it is below the maximum machine energy, such a contribution wou...
[ { "created": "Wed, 29 Sep 1993 17:05:00 GMT", "version": "v1" } ]
2007-05-23
[ [ "Casalbuoni", "R.", "" ], [ "Chiappetta", "P.", "" ], [ "Deandrea", "A.", "" ], [ "De Curtis", "S.", "" ], [ "Dominici", "D.", "" ], [ "Gatto", "R.", "" ] ]
We consider the possibility of detecting vector resonances from a strong electroweak sector, in the framework of the BESS model, at future $e^+ e^-$ colliders up to the TeV range. If the mass $M_V$ of the new vector boson multiplet is not far above or if it is below the maximum machine energy, such a contribution would...
2301.06311
B\'arbara Cid-Mora
B.A. Cid-Mora, T.G. Steele
NLO Effects in QCD Sum-Rule Analyses of $f_{0}(500)$ as a Tetraquark state
null
PoS \textbf{LATTICE2022} (2023)
10.22323/1.430.0258
258
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
QCD sum-rule studies have been useful to understand and get an insight on the structure of exotic states, such as tetraquark systems. Moreover, the majority of these studies are performed only at leading-order (LO) within the light tetraquarks systems picture, overlooking the effects of higher order corrections, thus...
[ { "created": "Mon, 16 Jan 2023 08:53:55 GMT", "version": "v1" } ]
2024-01-22
[ [ "Cid-Mora", "B. A.", "" ], [ "Steele", "T. G.", "" ] ]
QCD sum-rule studies have been useful to understand and get an insight on the structure of exotic states, such as tetraquark systems. Moreover, the majority of these studies are performed only at leading-order (LO) within the light tetraquarks systems picture, overlooking the effects of higher order corrections, thus m...
2310.12420
Waqas Ahmed
Imtiaz Khan, Waqas Ahmed, Tianjun Li, Shabbar Raza
Revisit a realistic intersecting D6-brane with modified soft SUSY terms
18 pages, 6 figures
null
null
null
hep-ph hep-th
http://creativecommons.org/licenses/by-nc-nd/4.0/
Because there are a few typos in the supersymmetry breaking sfermion masses and trilinear soft term, regarding the current Large Hadron Collider (LHC) and dark matter searches, we revisit a three-family Pati-Salam model based on intersecting D6-branes in Type IIA string theory on a $\mathbf{T^6/(\Z_2\times \Z_2)}$ or...
[ { "created": "Thu, 19 Oct 2023 02:14:36 GMT", "version": "v1" } ]
2023-10-20
[ [ "Khan", "Imtiaz", "" ], [ "Ahmed", "Waqas", "" ], [ "Li", "Tianjun", "" ], [ "Raza", "Shabbar", "" ] ]
Because there are a few typos in the supersymmetry breaking sfermion masses and trilinear soft term, regarding the current Large Hadron Collider (LHC) and dark matter searches, we revisit a three-family Pati-Salam model based on intersecting D6-branes in Type IIA string theory on a $\mathbf{T^6/(\Z_2\times \Z_2)}$ orie...
hep-ph/0010121
Abdelkader-Salim Safir
F. Iddir and A. S. Safir
The decay of the observed $J^{PC}=1^{-+}$ (1400) and $J^{PC}=1^{-+}$(1600) hybrid candidates
13 pages, 1 figure
Phys.Lett.B507:183-192,2001
10.1016/S0370-2693(01)00470-1
null
hep-ph
null
We study the possible interpretation of the two exotic resonances $J^{PC}= 1^{-+}$ at 1400 and 1600 MeV, claimed to be observed by BNL, decaying respectively into $\eta\pi$, $\eta'\pi$, $f_{1}\pi$ and $\rho\pi$. These objects are interpreted as hybrid mesons, in the quark-gluon constituent model using a chromoharmoni...
[ { "created": "Thu, 12 Oct 2000 14:46:22 GMT", "version": "v1" }, { "created": "Tue, 20 Mar 2001 14:43:45 GMT", "version": "v2" } ]
2008-11-26
[ [ "Iddir", "F.", "" ], [ "Safir", "A. S.", "" ] ]
We study the possible interpretation of the two exotic resonances $J^{PC}= 1^{-+}$ at 1400 and 1600 MeV, claimed to be observed by BNL, decaying respectively into $\eta\pi$, $\eta'\pi$, $f_{1}\pi$ and $\rho\pi$. These objects are interpreted as hybrid mesons, in the quark-gluon constituent model using a chromoharmonic ...
hep-ph/0601069
Jing-Jing Liu
Wu Peng, Ma Wen-Gan, Zhang Ren-You, Jiang Yi, Han Liang, Guo Lei
NLO supersymmetric QCD corrections to the $t \bar b H^-$ associated production at hadron colliders
Latex files, 26 eps figures included. Accepted for publication in Phys. Rev. D
Phys.Rev.D73:015012,2006; Erratum-ibid.D80:059901,2009
10.1103/PhysRevD.73.015012 10.1103/PhysRevD.80.059901
null
hep-ph
null
We present the next-to-leading order QCD corrected total cross sections and the distributions of the transverse momenta of the final anti-bottom-quark, top-quark and charged Higgs-boson for the processes of $p\bar p/pp \to t\bar b H^-+X$ in the minimal supersymmetric standard model(MSSM) at the Tevatron and the LHC. ...
[ { "created": "Tue, 10 Jan 2006 08:56:01 GMT", "version": "v1" } ]
2014-11-18
[ [ "Peng", "Wu", "" ], [ "Wen-Gan", "Ma", "" ], [ "Ren-You", "Zhang", "" ], [ "Yi", "Jiang", "" ], [ "Liang", "Han", "" ], [ "Lei", "Guo", "" ] ]
We present the next-to-leading order QCD corrected total cross sections and the distributions of the transverse momenta of the final anti-bottom-quark, top-quark and charged Higgs-boson for the processes of $p\bar p/pp \to t\bar b H^-+X$ in the minimal supersymmetric standard model(MSSM) at the Tevatron and the LHC. We...
hep-ph/0205016
Osman Yilmaz
A. Gokalp, A. Kucukarslan, S. Solmaz, O. Yilmaz (Middle East Technical University, Ankara-Turkey)
Scalar $a_0(980)$ meson in $\phi\to \pi^{0}\eta\gamma$ decay
18 pages, RevTeX, 6 PS figures. A rounding-off error in printing the horizontal axes of figures resulting from the computer program Grapher is corrected. Journal Ref.: J. Phys. G: Nucl. Part. Phys. 28 (2002) 2783-2793
J.Phys.G28:2783-2793,2002; Erratum-ibid.G28:3021,2002
10.1088/0954-3899/28/11/304
null
hep-ph
null
We study the radiative decay $\phi\to\pi^{0}\eta\gamma$ within the framework of a phenomenological approach in which the contributions of $\rho$-meson, chiral loop and $a_0$-meson are considered. We analyze the interference effects between different contributions and utilizing the experimental branching ratio and inv...
[ { "created": "Thu, 2 May 2002 11:01:20 GMT", "version": "v1" }, { "created": "Wed, 30 Oct 2002 14:34:32 GMT", "version": "v2" } ]
2008-11-26
[ [ "Gokalp", "A.", "", "Middle East Technical\n University, Ankara-Turkey" ], [ "Kucukarslan", "A.", "", "Middle East Technical\n University, Ankara-Turkey" ], [ "Solmaz", "S.", "", "Middle East Technical\n University, Ankara-Turkey" ], [ "Yilmaz", ...
We study the radiative decay $\phi\to\pi^{0}\eta\gamma$ within the framework of a phenomenological approach in which the contributions of $\rho$-meson, chiral loop and $a_0$-meson are considered. We analyze the interference effects between different contributions and utilizing the experimental branching ratio and invar...
hep-ph/0104009
Dr Rukmani Mohanta
A. K. Giri, R. Mohanta and M. P. Khanna
Determination of the angle $\gamma$ from nonleptonic $B_c \to D_s D^0$ decays
12 pages, LaTeX, 2 references added, Minor changes in the text, to appear in Phys. Rev. D
Phys.Rev.D65:034016,2002
10.1103/PhysRevD.65.034016
null
hep-ph
null
We note that the two body nonleptonic pure tree decays $B_c^\pm \to D_s^\pm D^0(\bar D^0)$ and the corresponding vector-vector modes $B_c^\pm \to D_s^{* \pm} D^{*0}(\bar D^{* 0}) $ are well suited to extract the weak phase $\gamma$ of the unitarity triangle. The CP violating phase $\gamma$ can be determined cleanly a...
[ { "created": "Mon, 2 Apr 2001 07:47:53 GMT", "version": "v1" }, { "created": "Mon, 17 Dec 2001 03:03:59 GMT", "version": "v2" } ]
2014-11-17
[ [ "Giri", "A. K.", "" ], [ "Mohanta", "R.", "" ], [ "Khanna", "M. P.", "" ] ]
We note that the two body nonleptonic pure tree decays $B_c^\pm \to D_s^\pm D^0(\bar D^0)$ and the corresponding vector-vector modes $B_c^\pm \to D_s^{* \pm} D^{*0}(\bar D^{* 0}) $ are well suited to extract the weak phase $\gamma$ of the unitarity triangle. The CP violating phase $\gamma$ can be determined cleanly as ...