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2011.05330
Chang-Hun Lee
Chang-Hun Lee
Flavor mixing and renormalization in a perturbation theory
40 pages, 5 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The renormalization of theories with flavor mixing is discussed, and it is shown that the physical unstable particles should be interpreted as quasiparticles which cannot be regarded as external states. Several popular beliefs on renormalization are disproved accordingly, and the limitations of physical renormalizati...
[ { "created": "Tue, 10 Nov 2020 18:55:04 GMT", "version": "v1" } ]
2020-11-12
[ [ "Lee", "Chang-Hun", "" ] ]
The renormalization of theories with flavor mixing is discussed, and it is shown that the physical unstable particles should be interpreted as quasiparticles which cannot be regarded as external states. Several popular beliefs on renormalization are disproved accordingly, and the limitations of physical renormalization...
hep-ph/0109091
Stefan Recksiegel
A.G. Akeroyd, S. Recksiegel
Direct CP Asymmetry of B -> X_d,s \gamma in a model with Vector quarks
12 pages, 6 figures. v2: Minor changes, 3 references added, to be publ. in PLB
Phys.Lett.B525:81-88,2002
10.1016/S0370-2693(01)01419-8
KEK-TH-782, KIAS-P01037
hep-ph
null
We investigate the effect of vector quarks on the inclusive decays B -> X_d,s \gamma. We show that the branching ratio of B -> X_d \gamma can differ sizably from the SM and MSSM predictions, being enhanced to present experimental observability or suppressed such that present runs of the B factories would not observe ...
[ { "created": "Tue, 11 Sep 2001 08:37:11 GMT", "version": "v1" }, { "created": "Thu, 29 Nov 2001 09:17:06 GMT", "version": "v2" } ]
2014-11-17
[ [ "Akeroyd", "A. G.", "" ], [ "Recksiegel", "S.", "" ] ]
We investigate the effect of vector quarks on the inclusive decays B -> X_d,s \gamma. We show that the branching ratio of B -> X_d \gamma can differ sizably from the SM and MSSM predictions, being enhanced to present experimental observability or suppressed such that present runs of the B factories would not observe it...
hep-ph/9810339
Biswarup Mukhopadhyaya
Debajyoti Choudhury, Anirban Kundu and Biswarup Mukhopadhyaya
Semileptonic charm decay as a test for the spectator model in the $B_c$-meson
Plain LaTeX file, with 5 postscript figures
null
null
MRI-PHY/P981063
hep-ph
null
The $b$ and the $c$ quark compete with each other in decays of the $B_c$-meson. We emphasize the need of obtaining reliable signals of $c \to s$ in order to assess the merits of the spectator approximation in calculating the relative strengths of the two types of decays. This, we argue, can be done by considering the...
[ { "created": "Tue, 13 Oct 1998 09:22:54 GMT", "version": "v1" } ]
2007-05-23
[ [ "Choudhury", "Debajyoti", "" ], [ "Kundu", "Anirban", "" ], [ "Mukhopadhyaya", "Biswarup", "" ] ]
The $b$ and the $c$ quark compete with each other in decays of the $B_c$-meson. We emphasize the need of obtaining reliable signals of $c \to s$ in order to assess the merits of the spectator approximation in calculating the relative strengths of the two types of decays. This, we argue, can be done by considering the d...
hep-ph/9610220
Mihail Tchijov
M.V. Chizhov
Tensor Excitations in Nambu - Jona-Lasinio Model
LaTeX, 8 pages
null
null
MIH-1996-002
hep-ph
null
It is shown that in the one-flavour NJL model the vector and axial-vector quasiparticles described by the antisymmetric tensor field are generated. These excitations have tensor interactions with quarks in contrast to usual vector ones. Phenomenological applications are discussed.
[ { "created": "Wed, 2 Oct 1996 18:16:02 GMT", "version": "v1" } ]
2007-05-23
[ [ "Chizhov", "M. V.", "" ] ]
It is shown that in the one-flavour NJL model the vector and axial-vector quasiparticles described by the antisymmetric tensor field are generated. These excitations have tensor interactions with quarks in contrast to usual vector ones. Phenomenological applications are discussed.
0907.4940
Hsiang-nan Li
Hsiang-nan Li
General Theoretical Introduction to Hadronic $B$ Decays
11 pages, 7 figures, presented at Flavor Physics and CP Violation 2009, Lake Placid, NY, May 27 - June 1, 2009
PoS FPCP2009:026,2009
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
I briefly introduce the theoretical frameworks for studies of two-body hadronic $B$ meson decays, which include the factorization assumption, the QCD-improved factorization, the perturbative QCD, the soft-collinear effective theory, the light-cone QCD sum rules, and the quark-diagram parametrization.
[ { "created": "Tue, 28 Jul 2009 15:51:42 GMT", "version": "v1" } ]
2014-11-20
[ [ "Li", "Hsiang-nan", "" ] ]
I briefly introduce the theoretical frameworks for studies of two-body hadronic $B$ meson decays, which include the factorization assumption, the QCD-improved factorization, the perturbative QCD, the soft-collinear effective theory, the light-cone QCD sum rules, and the quark-diagram parametrization.
1805.10730
Jinmian Li
Jun Guo, Jinmian Li, Tianjun Li, Fangzhou Xu, Wenxing Zhang
Deep learning for the R-parity violating supersymmetry searches at the LHC
17 pages, 6 figures, version accepted by PRD
Phys. Rev. D 98, 076017 (2018)
10.1103/PhysRevD.98.076017
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Supersymmetry with hadronic R-parity violation in which the lightest neutralino decays into three quarks is still weakly constrained. This work aims to further improve the current search for this scenario by the boosted decision tree method with additional information from jet substructure. In particular, we find a d...
[ { "created": "Mon, 28 May 2018 01:56:11 GMT", "version": "v1" }, { "created": "Mon, 15 Oct 2018 02:14:44 GMT", "version": "v2" } ]
2018-11-07
[ [ "Guo", "Jun", "" ], [ "Li", "Jinmian", "" ], [ "Li", "Tianjun", "" ], [ "Xu", "Fangzhou", "" ], [ "Zhang", "Wenxing", "" ] ]
Supersymmetry with hadronic R-parity violation in which the lightest neutralino decays into three quarks is still weakly constrained. This work aims to further improve the current search for this scenario by the boosted decision tree method with additional information from jet substructure. In particular, we find a dee...
hep-ph/0204239
James J. Kelly
James J. Kelly
Nucleon Charge and Magnetization Densities from Sachs Form Factors
To appear in Phys. Rev. C. Two new figures and accompanying text have been added and several discussions have been clarified with no significant changes to the conclusions. Now contains 47 pages including 21 figures and 2 tables
Phys.Rev. C66 (2002) 065203
10.1103/PhysRevC.66.065203
null
hep-ph nucl-th
null
Relativistic prescriptions relating Sachs form factors to nucleon charge and magnetization densities are used to fit recent data for both the proton and the neutron. The analysis uses expansions in complete radial bases to minimize model dependence and to estimate the uncertainties in radial densities due to limitati...
[ { "created": "Fri, 19 Apr 2002 22:24:10 GMT", "version": "v1" }, { "created": "Mon, 11 Nov 2002 14:20:38 GMT", "version": "v2" } ]
2009-11-07
[ [ "Kelly", "James J.", "" ] ]
Relativistic prescriptions relating Sachs form factors to nucleon charge and magnetization densities are used to fit recent data for both the proton and the neutron. The analysis uses expansions in complete radial bases to minimize model dependence and to estimate the uncertainties in radial densities due to limitation...
1003.0962
Chung-Lin Shan
Chung-Lin Shan
Extracting Dark Matter Properties Model-Independently from Direct Detection Experiments
10 pages, to appear in the proceedings of the International Workshop on Dark Matter, Dark Eaergy, and Matter-Antimatter Asymmetry, Hsinchu, Taiwan, November 20-21, 2009
Mod.Phys.Lett.A25:951-961,2010
10.1142/S0217732310000101
null
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this article I review model-independent procedures for extracting properties of Weakly Interacting Massive Particles (WIMPs) from direct Dark Matter detection experiments. Neither prior knowledge about the velocity distribution function of halo Dark Matter particles nor about their mass or cross sections on target...
[ { "created": "Thu, 4 Mar 2010 04:01:03 GMT", "version": "v1" } ]
2010-05-27
[ [ "Shan", "Chung-Lin", "" ] ]
In this article I review model-independent procedures for extracting properties of Weakly Interacting Massive Particles (WIMPs) from direct Dark Matter detection experiments. Neither prior knowledge about the velocity distribution function of halo Dark Matter particles nor about their mass or cross sections on target n...
hep-ph/0208190
Paul Hoyer
Paul Hoyer
Duality in Semi-Exclusive Processes
Talk at the ``Workshop on Exclusive Processes at High Momentum Transfer'' at Jefferson Laboratory, Newport News, USA (May 2002). 7 pages
null
10.1142/9789812776211_0043
NORDITA-2002-58 HE
hep-ph
null
Bloom-Gilman duality relates parton distributions to nucleon form factors and thus constrains the dynamics of exclusive processes. The quark electric charge dependence implies that exclusive scattering is incoherent on the quarks even at high momentum transfers. Data on semi-exclusive meson production exceeds the dua...
[ { "created": "Wed, 21 Aug 2002 10:11:20 GMT", "version": "v1" } ]
2017-08-23
[ [ "Hoyer", "Paul", "" ] ]
Bloom-Gilman duality relates parton distributions to nucleon form factors and thus constrains the dynamics of exclusive processes. The quark electric charge dependence implies that exclusive scattering is incoherent on the quarks even at high momentum transfers. Data on semi-exclusive meson production exceeds the duali...
0809.5053
Heinrich Leutwyler
H. Leutwyler
On the low energy end of the QCD spectrum
Talks given at QCD08 and Confinement8
null
10.1016/j.nuclphysbps.2008.12.076
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The energy gap of QCD is now understood very well. There is no doubt that the expansion in powers of the two lightest quark masses does represent a very useful tool for the analysis of the low energy structure. Concerning the expansion in powers of m_s, however, the current situation leaves much to be desired. While ...
[ { "created": "Mon, 29 Sep 2008 20:54:30 GMT", "version": "v1" } ]
2009-11-13
[ [ "Leutwyler", "H.", "" ] ]
The energy gap of QCD is now understood very well. There is no doubt that the expansion in powers of the two lightest quark masses does represent a very useful tool for the analysis of the low energy structure. Concerning the expansion in powers of m_s, however, the current situation leaves much to be desired. While so...
0903.1383
Alejandro Gutierrez-Rodriguez
A. Gutierrez-Rodriguez, M. A. Hernandez-Ruiz and O. A. Sampayo
Neutral Higgs Boson Pair-Production and Trilinear Self-Couplings in the MSSM at ILC and CLIC Energies
26 pages, 11 figures
Int.J.Mod.Phys.A24:5299-5318,2009
10.1142/S0217751X09044784
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study pair-production as well as the triple self-couplings of the neutral Higgs bosons of the Minimal Supersymmetric Standard Model (MSSM) at the Future International Linear $e^{+}e^{-}$ Collider (ILC) and Compact Linear Collider (CLIC). The analysis is based on the reactions $e^{+}e^{-}\to b \bar b h_ih_i, t \bar...
[ { "created": "Mon, 9 Mar 2009 14:49:34 GMT", "version": "v1" } ]
2009-11-30
[ [ "Gutierrez-Rodriguez", "A.", "" ], [ "Hernandez-Ruiz", "M. A.", "" ], [ "Sampayo", "O. A.", "" ] ]
We study pair-production as well as the triple self-couplings of the neutral Higgs bosons of the Minimal Supersymmetric Standard Model (MSSM) at the Future International Linear $e^{+}e^{-}$ Collider (ILC) and Compact Linear Collider (CLIC). The analysis is based on the reactions $e^{+}e^{-}\to b \bar b h_ih_i, t \bar t...
2111.00420
Yuta Michimura Dr.
Yuta Michimura, Tomohiro Fujita, Jun'ya Kume, Soichiro Morisaki, Koji Nagano, Hiromasa Nakatsuka, Atsushi Nishizawa, Ippei Obata
Ultralight dark matter searches with KAGRA gravitational wave telescope
5 pages, 2 figures, Proceedings for the 17th International Conference on Topics in Astroparticle and Underground Physics, Online, August 26 - September 3, 2021
null
10.1088/1742-6596/2156/1/012071
JGW-P2113400
hep-ph astro-ph.CO astro-ph.IM gr-qc physics.optics
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Among various dark matter candidates, bosonic ultralight fields with masses below 1~eV are well motivated. Recently, a number of novel approaches have been put forward to search for ultralight dark matter candidates using laser interferometers at various scales. Those include our proposals to search for axion-like pa...
[ { "created": "Sun, 31 Oct 2021 07:20:40 GMT", "version": "v1" } ]
2022-03-02
[ [ "Michimura", "Yuta", "" ], [ "Fujita", "Tomohiro", "" ], [ "Kume", "Jun'ya", "" ], [ "Morisaki", "Soichiro", "" ], [ "Nagano", "Koji", "" ], [ "Nakatsuka", "Hiromasa", "" ], [ "Nishizawa", "Atsushi", "" ]...
Among various dark matter candidates, bosonic ultralight fields with masses below 1~eV are well motivated. Recently, a number of novel approaches have been put forward to search for ultralight dark matter candidates using laser interferometers at various scales. Those include our proposals to search for axion-like part...
1104.3017
Florian Staub
Florian Staub
Considerations on supersymmetric Dark Matter beyond the MSSM
Ph. D. thesis. 230 pages. Universit\"at W\"urzburg
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The standard model (SM) of particle physics is for the last three decades a very successful description of the properties and interactions of all known elementary particles. Currently, it is again probed with the first collisions at the Large Hadron Collider (LHC). It is widely expected that new physics will be detec...
[ { "created": "Fri, 15 Apr 2011 11:15:47 GMT", "version": "v1" } ]
2011-04-18
[ [ "Staub", "Florian", "" ] ]
The standard model (SM) of particle physics is for the last three decades a very successful description of the properties and interactions of all known elementary particles. Currently, it is again probed with the first collisions at the Large Hadron Collider (LHC). It is widely expected that new physics will be detecte...
0903.1217
Alfredo Cocco Dr.
Alfredo G. Cocco, Gianpiero Mangano and Marcello Messina
Low Energy Antineutrino Detection Using Neutrino Capture on EC Decaying Nuclei
6 pages, 2 figures
null
10.1103/PhysRevD.79.053009
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we present a study of the interaction of low energy electron antineutrino on nuclei that undergo electron capture. We show that the two corresponding crossed reactions have a sizeable cross section and are both suitable for detection of low energy antineutrino. However, only in case very specific condit...
[ { "created": "Fri, 6 Mar 2009 14:51:39 GMT", "version": "v1" } ]
2009-11-13
[ [ "Cocco", "Alfredo G.", "" ], [ "Mangano", "Gianpiero", "" ], [ "Messina", "Marcello", "" ] ]
In this paper we present a study of the interaction of low energy electron antineutrino on nuclei that undergo electron capture. We show that the two corresponding crossed reactions have a sizeable cross section and are both suitable for detection of low energy antineutrino. However, only in case very specific conditio...
0705.3527
Hiroto Nakajima
Hiroto Nakajima
Testing the seesaw mechanism at collider energies in the Randall-Sundrum model
13 pages, 6 figures
null
null
UT-07-17
hep-ph
null
The Randall-Sundrum model with gauge fields and fermions in the bulk has several attractive features including the gauge coupling unification, a candidate for the dark matter, and an explanation for the hierarchical Yukawa couplings. In this paper, we point out that the 1st Kaluza-Klein modes of right-handed neutri...
[ { "created": "Thu, 24 May 2007 08:38:32 GMT", "version": "v1" } ]
2007-05-25
[ [ "Nakajima", "Hiroto", "" ] ]
The Randall-Sundrum model with gauge fields and fermions in the bulk has several attractive features including the gauge coupling unification, a candidate for the dark matter, and an explanation for the hierarchical Yukawa couplings. In this paper, we point out that the 1st Kaluza-Klein modes of right-handed neutrinos ...
2210.05426
Jo\~ao Paulo Pinheiro
Joao Paulo Pinheiro and C. A. de S. Pires
On the Higgs spectra of the 3-3-1 model
null
null
10.1016/j.physletb.2022.137584
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The minimal scalar sector of the 3-3-1 model is composed by the SU(3)$_L$ triplet scalars $\eta$, $\rho$, $\chi$ and its potential allows the trilinear term $\frac{f}{\sqrt{2}}\chi \eta \rho$. Since $f$ is an energy scale associated to the explicit violation of Peccei-Quinn global symmetry, it is natural to consider ...
[ { "created": "Tue, 11 Oct 2022 13:09:12 GMT", "version": "v1" }, { "created": "Fri, 28 Oct 2022 09:26:46 GMT", "version": "v2" } ]
2022-12-07
[ [ "Pinheiro", "Joao Paulo", "" ], [ "Pires", "C. A. de S.", "" ] ]
The minimal scalar sector of the 3-3-1 model is composed by the SU(3)$_L$ triplet scalars $\eta$, $\rho$, $\chi$ and its potential allows the trilinear term $\frac{f}{\sqrt{2}}\chi \eta \rho$. Since $f$ is an energy scale associated to the explicit violation of Peccei-Quinn global symmetry, it is natural to consider in...
hep-ph/0007011
Walter Grimus
W. Grimus and L. Lavoura
A neutrino mass matrix with seesaw mechanism and two-loop mass splitting
8 pages, Latex
Phys.Rev. D62 (2000) 093012
10.1103/PhysRevD.62.093012
UWThPh-2000-26
hep-ph
null
We propose a model which uses the seesaw mechanism and the lepton number $\bar L = L_e - L_\mu - L_\tau$ to achieve the neutrino mass spectrum $m_1 = m_2$ and $m_3 = 0$, together with a lepton mixing matrix $U$ with $U_{e3} = 0$. In this way, we accommodate atmospheric neutrino oscillations. A small mass splitting $m...
[ { "created": "Mon, 3 Jul 2000 11:43:19 GMT", "version": "v1" } ]
2009-10-31
[ [ "Grimus", "W.", "" ], [ "Lavoura", "L.", "" ] ]
We propose a model which uses the seesaw mechanism and the lepton number $\bar L = L_e - L_\mu - L_\tau$ to achieve the neutrino mass spectrum $m_1 = m_2$ and $m_3 = 0$, together with a lepton mixing matrix $U$ with $U_{e3} = 0$. In this way, we accommodate atmospheric neutrino oscillations. A small mass splitting $m_1...
1808.02579
Jason Kumar
Jason Kumar
Indirect Detection of Sub-GeV Dark Matter Coupling to Quarks
12 pages, 3 figures, LaTeX. Minor errors fixed, results unchanged. Matches journal version
Phys. Rev. D 98, 116009 (2018)
10.1103/PhysRevD.98.116009
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider photon signals arising from the annihilation or decay of low-mass (sub-GeV) dark matter which couples dominantly to quarks. In this scenario, the branching fractions to the various kinematically accessible hadronic final states can largely be determined from chiral perturbation theory. Several of these fi...
[ { "created": "Tue, 7 Aug 2018 23:08:54 GMT", "version": "v1" }, { "created": "Mon, 17 Dec 2018 19:59:35 GMT", "version": "v2" } ]
2018-12-26
[ [ "Kumar", "Jason", "" ] ]
We consider photon signals arising from the annihilation or decay of low-mass (sub-GeV) dark matter which couples dominantly to quarks. In this scenario, the branching fractions to the various kinematically accessible hadronic final states can largely be determined from chiral perturbation theory. Several of these fina...
hep-ph/9405374
null
Shyamoli Chaudhuri, Stephen-wei Chung, and Joseph D. Lykken
Fermion Masses from Superstring Models with Adjoint Scalars
LaTeX, 14 pages, FERMILAB-PUB-94/137-T. (references and ITP preprint number added)
null
null
null
hep-ph hep-th
null
We explore the possibility of embedding supersymmetric GUT texture ideas into superstring models. We discuss the construction of GUT models using free fermionic strings. We find SO(10) models with adjoint scalars, three generations of chiral fermions, and a fundamental Higgs with a Yukawa coupling to only the third g...
[ { "created": "Tue, 24 May 1994 22:28:32 GMT", "version": "v1" }, { "created": "Thu, 26 May 1994 20:35:22 GMT", "version": "v2" } ]
2008-02-03
[ [ "Chaudhuri", "Shyamoli", "" ], [ "Chung", "Stephen-wei", "" ], [ "Lykken", "Joseph D.", "" ] ]
We explore the possibility of embedding supersymmetric GUT texture ideas into superstring models. We discuss the construction of GUT models using free fermionic strings. We find SO(10) models with adjoint scalars, three generations of chiral fermions, and a fundamental Higgs with a Yukawa coupling to only the third gen...
2306.14463
Rajesh Sangem
Khatiza Banu, Asmita Mukherjee, Amol Pawar, and Sangem Rajesh
Azimuthal asymmetries in $D$-meson and jet production at the EIC
19 pages, 13 figures, the version to be published in PRD
null
10.1103/PhysRevD.108.034005
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the azimuthal asymmetries in back-to-back leptoproduction of $D$-meson and jet to probe the gluon TMDs in an unpolarized and transversely polarized electron-proton collision at the kinematics of EIC. We give predictions for unpolarized cross-sections within the TMD factorization framework. In $D$-meson and j...
[ { "created": "Mon, 26 Jun 2023 07:05:34 GMT", "version": "v1" }, { "created": "Mon, 24 Jul 2023 14:20:47 GMT", "version": "v2" } ]
2023-08-16
[ [ "Banu", "Khatiza", "" ], [ "Mukherjee", "Asmita", "" ], [ "Pawar", "Amol", "" ], [ "Rajesh", "Sangem", "" ] ]
We study the azimuthal asymmetries in back-to-back leptoproduction of $D$-meson and jet to probe the gluon TMDs in an unpolarized and transversely polarized electron-proton collision at the kinematics of EIC. We give predictions for unpolarized cross-sections within the TMD factorization framework. In $D$-meson and jet...
1311.0775
Borut Bajc
Borut Bajc and Vasja Susi\v{c}
Towards the minimal renormalizable supersymmetric $E_6$ model
36 pages, a new section on proton decay added, new reference, results unchanged. To be published in JHEP
null
10.1007/JHEP02(2014)058
CETUP2013-019
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We find an explicit renormalizable supersymmetric $E_6$ model with all the ingredients for being realistic. It consists of the Higgs sector $351'+\overline{351'}+27+\overline{27}$, which breaks $E_6$ directly to the Standard Model gauge group. Three copies of $27$ dimensional representations then describe the matter ...
[ { "created": "Mon, 4 Nov 2013 17:17:16 GMT", "version": "v1" }, { "created": "Mon, 13 Jan 2014 14:09:04 GMT", "version": "v2" } ]
2015-06-17
[ [ "Bajc", "Borut", "" ], [ "Susič", "Vasja", "" ] ]
We find an explicit renormalizable supersymmetric $E_6$ model with all the ingredients for being realistic. It consists of the Higgs sector $351'+\overline{351'}+27+\overline{27}$, which breaks $E_6$ directly to the Standard Model gauge group. Three copies of $27$ dimensional representations then describe the matter se...
1008.3120
Takayuki Matsuki
Zhi-Feng Sun, Jie-Sheng Yu, Xiang Liu, and Takayuki Matsuki
Newly observed D(2550), D(2610), and D(2760) as 2S and 1D charmed mesons
5 pages, 4 figures, 2 tables, Accepted by Rapid Communications of Phys. Rev. D
Phys.Rev.D82:111501,2010
10.1103/PhysRevD.82.111501
null
hep-ph hep-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study three newly observed D(2550), D(2610), and D(2760) by the BaBar Collaboration utilizing the mass spectra and investigating the strong decays. Our calculation indicates that D(2610) is an admixture of $2^3S_1$ and $1^3D_1$ with $J^P=1^-$. $D(2760)$ can be explained as either the orthogonal partner of D(2610) ...
[ { "created": "Wed, 18 Aug 2010 15:52:46 GMT", "version": "v1" }, { "created": "Wed, 25 Aug 2010 02:33:05 GMT", "version": "v2" }, { "created": "Sat, 4 Sep 2010 08:40:32 GMT", "version": "v3" }, { "created": "Tue, 26 Oct 2010 16:30:21 GMT", "version": "v4" } ]
2010-12-02
[ [ "Sun", "Zhi-Feng", "" ], [ "Yu", "Jie-Sheng", "" ], [ "Liu", "Xiang", "" ], [ "Matsuki", "Takayuki", "" ] ]
We study three newly observed D(2550), D(2610), and D(2760) by the BaBar Collaboration utilizing the mass spectra and investigating the strong decays. Our calculation indicates that D(2610) is an admixture of $2^3S_1$ and $1^3D_1$ with $J^P=1^-$. $D(2760)$ can be explained as either the orthogonal partner of D(2610) or...
0907.4682
Pietro Slavich
G. Degrassi and P. Slavich
On the radiative corrections to the neutral Higgs boson masses in the NMSSM
34 pages, 5 figures
Nucl.Phys.B825:119-150,2010
10.1016/j.nuclphysb.2009.09.018
RM3-TH/09-15, LAPTH-1337/09
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We provide a full one-loop calculation of the self energies and tadpoles of the neutral Higgs bosons of the NMSSM. In addition, we compute the two-loop O(alpha_t*alpha_s+alpha_b*alpha_s) corrections to the neutral Higgs boson masses in the effective potential approximation. With respect to earlier calculations, the n...
[ { "created": "Mon, 27 Jul 2009 16:18:39 GMT", "version": "v1" } ]
2009-11-09
[ [ "Degrassi", "G.", "" ], [ "Slavich", "P.", "" ] ]
We provide a full one-loop calculation of the self energies and tadpoles of the neutral Higgs bosons of the NMSSM. In addition, we compute the two-loop O(alpha_t*alpha_s+alpha_b*alpha_s) corrections to the neutral Higgs boson masses in the effective potential approximation. With respect to earlier calculations, the new...
1906.01665
Luis F. Urrutia
O. J. Franca, L. F. Urrutia and Omar Rodr\'iguez-Tzompantzi
Explicit spacetime symmetry breaking in matter: the reversed Vavilov-\v{C}erenkov radiation
Four pages, 1 figure, tex, ws-procs9x6-cpt19.cls, Presented at the Eighth Meeting on CPT and Lorentz Symmetry, Bloomington, Indiana, May 12-16, 2019, typos corrected
null
10.1142/9789811213984_0040
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show that reversed Vavilov-\v{C}erenkov radiation occurs simultaneously with the forward output in naturally existing materials when an electric charge moves with a constant velocity perpendicular to the planar interface between two magnetoelectric media. Using the Green's function in the far-field approximation w...
[ { "created": "Tue, 4 Jun 2019 18:14:03 GMT", "version": "v1" }, { "created": "Thu, 6 Jun 2019 14:55:23 GMT", "version": "v2" } ]
2020-10-30
[ [ "Franca", "O. J.", "" ], [ "Urrutia", "L. F.", "" ], [ "Rodríguez-Tzompantzi", "Omar", "" ] ]
We show that reversed Vavilov-\v{C}erenkov radiation occurs simultaneously with the forward output in naturally existing materials when an electric charge moves with a constant velocity perpendicular to the planar interface between two magnetoelectric media. Using the Green's function in the far-field approximation we ...
hep-ph/9803269
Silvano Simula
D. Melikhov, N. Nikitin and S. Simula
Right-handed currents in rare exclusive B -> (K, K*) nu bar{nu} decays
latex, 10 pp., 4 figures with epsfig.sty
Phys.Lett. B428 (1998) 171-178
10.1016/S0370-2693(98)00407-9
preprint INFN-ISS 98/2
hep-ph
null
The effects of possible right-handed weak hadronic currents in rare exclusive semileptonic decays B -> (K, K*) nu bar{nu} are investigated using a lattice-constrained dispersion quark model for the calculation of the relevant mesonic form factors. The results obtained for the branching ratios and the missing energy s...
[ { "created": "Fri, 6 Mar 1998 14:30:22 GMT", "version": "v1" } ]
2009-10-31
[ [ "Melikhov", "D.", "" ], [ "Nikitin", "N.", "" ], [ "Simula", "S.", "" ] ]
The effects of possible right-handed weak hadronic currents in rare exclusive semileptonic decays B -> (K, K*) nu bar{nu} are investigated using a lattice-constrained dispersion quark model for the calculation of the relevant mesonic form factors. The results obtained for the branching ratios and the missing energy spe...
1505.05038
Rafal Maciula
Rafal Maciula, Antoni Szczurek and Marta Luszczak
Open charm meson production at BNL RHIC within $k_{t}$-factorization approach and revision of their semileptonic decays
22 pages, 6 figures
Phys. Rev. D 92, 054006 (2015)
10.1103/PhysRevD.92.054006
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss inclusive production of open charm mesons in proton-proton scattering at the BNL RHIC. The calculation is performed in the framework of $k_t$-factorization approach which effectively includes higher-order pQCD corrections. Different models of unintegrated gluon distributions (UGDF) from the literature are ...
[ { "created": "Tue, 19 May 2015 15:08:26 GMT", "version": "v1" } ]
2015-09-09
[ [ "Maciula", "Rafal", "" ], [ "Szczurek", "Antoni", "" ], [ "Luszczak", "Marta", "" ] ]
We discuss inclusive production of open charm mesons in proton-proton scattering at the BNL RHIC. The calculation is performed in the framework of $k_t$-factorization approach which effectively includes higher-order pQCD corrections. Different models of unintegrated gluon distributions (UGDF) from the literature are us...
hep-ph/0006285
Marco Stratmann
M. Stratmann (Regensburg Univ.)
Determining the Spin Structure of the Photon at Future Colliders
3 pages, LaTeX, 1 eps figure, uses sprocl style (included); Contribution to the proceedings of the workshop `DIS 2000', Liverpool, UK, April 2000
null
null
null
hep-ph
null
It is demonstrated that measurements of the spin asymmetry for di-jet production at future polarized colliders appear to be particularly suited for a first determination of the so far unmeasured parton densities of circularly polarized photons.
[ { "created": "Mon, 26 Jun 2000 06:53:23 GMT", "version": "v1" } ]
2007-05-23
[ [ "Stratmann", "M.", "", "Regensburg Univ." ] ]
It is demonstrated that measurements of the spin asymmetry for di-jet production at future polarized colliders appear to be particularly suited for a first determination of the so far unmeasured parton densities of circularly polarized photons.
0708.1948
Cheuk-Yin Wong
Cheuk-Yin Wong (ORNL) and Wei-Ning Zhang (Dalian Univ. Tech. and Harbin Inst. Tech.)
Chaoticity Parameter Lambda in Hanbury-Brown Twiss Interferometry
23 pages in Latex, 13 figures
Phys.Rev.C76:034905,2007
10.1103/PhysRevC.76.034905
null
hep-ph nucl-th quant-ph
null
In Hanbury-Brown-Twiss interferometry measurements using identical bosons, the chaoticity parameter lambda has been introduced phenomenologically to represent the momentum correlation function at zero relative momentum. It is useful to study an exactly solvable problem in which the lambda parameter and its dependence...
[ { "created": "Tue, 14 Aug 2007 20:01:45 GMT", "version": "v1" }, { "created": "Mon, 15 Oct 2007 18:19:18 GMT", "version": "v2" } ]
2008-11-26
[ [ "Wong", "Cheuk-Yin", "", "ORNL" ], [ "Zhang", "Wei-Ning", "", "Dalian Univ. Tech. and\n Harbin Inst. Tech." ] ]
In Hanbury-Brown-Twiss interferometry measurements using identical bosons, the chaoticity parameter lambda has been introduced phenomenologically to represent the momentum correlation function at zero relative momentum. It is useful to study an exactly solvable problem in which the lambda parameter and its dependence o...
hep-ph/9311326
Hitoshi Murayama
Hitoshi Murayama (LBL), Hiroshi Suzuki (Genova), T. Yanagida (Tohoku), and Jun'ichi Yokoyama (YITP, Kyoto)
Chaotic Inflation and Baryogenesis in Supergravity
YITP/U-93-29, LBL-34887 10 pages, LaTeX file, requires REVTEX 3.0. Two PostScript figures attached in tar+compress+uuencode format after \end{document}
Phys.Rev.D50:2356-2360,1994
10.1103/PhysRevD.50.R2356
null
hep-ph
null
We propose a K\"ahler potential in supergravity which successfully accommodates chaotic inflation. This model can have a large gravitino mass without giving a large mass to squarks and sleptons, and thus is free from both the gravitino problem and entropy crisis. In this model baryogenesis takes place naturally, iden...
[ { "created": "Sun, 21 Nov 1993 21:24:09 GMT", "version": "v1" } ]
2009-09-29
[ [ "Murayama", "Hitoshi", "", "LBL" ], [ "Suzuki", "Hiroshi", "", "Genova" ], [ "Yanagida", "T.", "", "Tohoku" ], [ "Yokoyama", "Jun'ichi", "", "YITP, Kyoto" ] ]
We propose a K\"ahler potential in supergravity which successfully accommodates chaotic inflation. This model can have a large gravitino mass without giving a large mass to squarks and sleptons, and thus is free from both the gravitino problem and entropy crisis. In this model baryogenesis takes place naturally, identi...
hep-ph/9308219
Ernest Ma
Ernest Ma
Two New Supersymmetric Options for Two Higgs Doublets at the Electroweak Energy Scale
7 pages, UCRHEP-T114, August 1993, to appear in Proc. of 14th International Workshop on Weak Interactions and Neutrinos, Seoul, Korea, July 1993
null
null
null
hep-ph
null
Contrary to common belief, the requirement that supersymmetry exists and that there are two Higgs doublets and no singlet at the electroweak energy scale does not necessarily result in the minimal supersymmetric standard model (MSSM). Two interesting alternatives are presented.
[ { "created": "Tue, 3 Aug 1993 22:37:38 GMT", "version": "v1" } ]
2007-05-23
[ [ "Ma", "Ernest", "" ] ]
Contrary to common belief, the requirement that supersymmetry exists and that there are two Higgs doublets and no singlet at the electroweak energy scale does not necessarily result in the minimal supersymmetric standard model (MSSM). Two interesting alternatives are presented.
hep-ph/0305335
Y. Y. Keum
Yong-Yeon Keum, T. Kurimoto, H.-n. Li, C.-D. Lu and A.I. Sanda
Nonfactorizable contributions to $B \to D^{(*)} M$ decays
25 pages with Latex, axodraw.sty, 6 figures and 5 tables, Version published in PRD, Added new section 5 and references
Phys.Rev. D69 (2004) 094018
10.1103/PhysRevD.69.094018
null
hep-ph
null
While the factorization assumption works well for many two-body nonleptonic $B$ meson decay modes, the recent measurement of $\bar B\to D^{(*)0}M^0$ with $M=\pi$, $\rho$ and $\omega$ shows large deviation from this assumption. We analyze the $B\to D^{(*)}M$ decays in the perturbative QCD approach based on $k_T$ facto...
[ { "created": "Fri, 30 May 2003 17:00:15 GMT", "version": "v1" }, { "created": "Tue, 17 Jun 2003 08:53:09 GMT", "version": "v2" }, { "created": "Fri, 11 Feb 2005 14:40:19 GMT", "version": "v3" } ]
2009-11-10
[ [ "Keum", "Yong-Yeon", "" ], [ "Kurimoto", "T.", "" ], [ "Li", "H. -n.", "" ], [ "Lu", "C. -D.", "" ], [ "Sanda", "A. I.", "" ] ]
While the factorization assumption works well for many two-body nonleptonic $B$ meson decay modes, the recent measurement of $\bar B\to D^{(*)0}M^0$ with $M=\pi$, $\rho$ and $\omega$ shows large deviation from this assumption. We analyze the $B\to D^{(*)}M$ decays in the perturbative QCD approach based on $k_T$ factori...
hep-ph/0210386
Zbigniew Was
Z. Was
Status report on TAUOLA, its environment, and its applications
Talk at the Seventh International Workshop on Tau Lepton Physics (TAU02), Santa Cruz, Ca, USA, Sept 2002, 5 pages, LaTeX, 4 eps/ps figures
eConf C0209101 (2002) FR01
10.1016/S0920-5632(03)02190-X
CERN-TH/2002-302
hep-ph
null
The status of the Monte Carlo programs for the simulation of the tau-lepton production and decay in high energy accelerator experiments is reviewed. In particular, the status of the following packages is discussed: (i) TAUOLA for tau-lepton decay and PHOTOS for radiative corrections in decays, (ii) MC-TESTER for univ...
[ { "created": "Mon, 28 Oct 2002 18:12:44 GMT", "version": "v1" } ]
2009-11-07
[ [ "Was", "Z.", "" ] ]
The status of the Monte Carlo programs for the simulation of the tau-lepton production and decay in high energy accelerator experiments is reviewed. In particular, the status of the following packages is discussed: (i) TAUOLA for tau-lepton decay and PHOTOS for radiative corrections in decays, (ii) MC-TESTER for univer...
1912.02436
Simon Platzer
Jimmy Olsson, Simon Pl\"atzer, Malin Sjodahl
Resampling Algorithms for High Energy Physics Simulations
7 pages, 3 figures
null
10.1140/epjc/s10052-020-08500-y
LU-TP 19-54, UWTHPH-2019-12, MCnet-19-25
hep-ph physics.comp-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We demonstrate that the method of interleaved resampling in the context of parton showers can tremendously improve the statistical convergence of weighted parton shower evolution algorithms. We illustrate this by several examples showing significant statistical improvement.
[ { "created": "Thu, 5 Dec 2019 08:45:16 GMT", "version": "v1" } ]
2020-10-28
[ [ "Olsson", "Jimmy", "" ], [ "Plätzer", "Simon", "" ], [ "Sjodahl", "Malin", "" ] ]
We demonstrate that the method of interleaved resampling in the context of parton showers can tremendously improve the statistical convergence of weighted parton shower evolution algorithms. We illustrate this by several examples showing significant statistical improvement.
1910.02931
Wally Melnitchouk
A. Accardi, C.E. Keppel, S. Li, W. Melnitchouk, J.F. Owens
On the shape of the $\bar d-\bar u$ asymmetry
17 pages, 6 figures
Phys. Lett. B 801, 135143 (2020)
null
JLAB-THY-19-3053
hep-ph hep-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Using data from a recent reanalysis of neutron structure functions extracted from inclusive proton and deuteron deep-inelastic scattering (DIS), we re-examine the constraints on the shape of the $\bar d-\bar u$ asymmetry in the proton at large parton momentum fractions $x$. A global analysis of the proton-neutron str...
[ { "created": "Mon, 7 Oct 2019 17:44:09 GMT", "version": "v1" } ]
2020-01-31
[ [ "Accardi", "A.", "" ], [ "Keppel", "C. E.", "" ], [ "Li", "S.", "" ], [ "Melnitchouk", "W.", "" ], [ "Owens", "J. F.", "" ] ]
Using data from a recent reanalysis of neutron structure functions extracted from inclusive proton and deuteron deep-inelastic scattering (DIS), we re-examine the constraints on the shape of the $\bar d-\bar u$ asymmetry in the proton at large parton momentum fractions $x$. A global analysis of the proton-neutron struc...
1404.6161
Valery Lyubovitskij
Yubing Dong, Amand Faessler, Thomas Gutsche, Valery E. Lyubovitskij
Radiative decay Y(4260) -> X(3872) + gamma involving hadronic molecular and charmonium components
12 pages
Phys. Rev. D 90, 074032 (2014)
10.1103/PhysRevD.90.074032
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We apply a phenomenological Lagrangian approach to the radiative decay Y(4260) -> X(3872) + gamma. The Y(4260) and X(3872) resonances are considered as composite states containing both molecular hadronic and charmonium components. Having a leading molecular component in the X(3872) and a sole molecular configuration ...
[ { "created": "Thu, 24 Apr 2014 15:35:44 GMT", "version": "v1" }, { "created": "Wed, 29 Oct 2014 12:52:42 GMT", "version": "v2" } ]
2014-10-30
[ [ "Dong", "Yubing", "" ], [ "Faessler", "Amand", "" ], [ "Gutsche", "Thomas", "" ], [ "Lyubovitskij", "Valery E.", "" ] ]
We apply a phenomenological Lagrangian approach to the radiative decay Y(4260) -> X(3872) + gamma. The Y(4260) and X(3872) resonances are considered as composite states containing both molecular hadronic and charmonium components. Having a leading molecular component in the X(3872) and a sole molecular configuration fo...
2005.12917
Julio Parra-Martinez
Zvi Bern, Julio Parra-Martinez, Eric Sawyer
Structure of two-loop SMEFT anomalous dimensions via on-shell methods
58 pages, 8 figures, 6 tables
null
10.1007/JHEP10(2020)211
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We describe on-shell methods for computing one- and two-loop anomalous dimensions in the context of effective field theories containing higher-dimension operators. We also summarize methods for computing one-loop amplitudes, which are used as inputs to the computation of two-loop anomalous dimensions, and we explain ...
[ { "created": "Tue, 26 May 2020 18:00:00 GMT", "version": "v1" } ]
2020-12-02
[ [ "Bern", "Zvi", "" ], [ "Parra-Martinez", "Julio", "" ], [ "Sawyer", "Eric", "" ] ]
We describe on-shell methods for computing one- and two-loop anomalous dimensions in the context of effective field theories containing higher-dimension operators. We also summarize methods for computing one-loop amplitudes, which are used as inputs to the computation of two-loop anomalous dimensions, and we explain ho...
hep-ph/9503364
Masato Jimbo
Masato Jimbo, Tadashi Kon and Minami-Tateya collaboration
The automatic computation for SUSY processes
total 4 pages
null
10.24532/soken.92.1_A31
TMCP-95-2
hep-ph
null
We have constructed a system for the automatic computation of cross-sections for the processes of the SUSY QED by the extension of the GRACE system including a Majorana fermion. The system has also been applied to another model including Majorana fermions, MSSM, by the definition of the model file.
[ { "created": "Fri, 17 Mar 1995 18:23:20 GMT", "version": "v1" }, { "created": "Fri, 17 Mar 1995 18:30:35 GMT", "version": "v2" } ]
2023-05-08
[ [ "Jimbo", "Masato", "" ], [ "Kon", "Tadashi", "" ], [ "collaboration", "Minami-Tateya", "" ] ]
We have constructed a system for the automatic computation of cross-sections for the processes of the SUSY QED by the extension of the GRACE system including a Majorana fermion. The system has also been applied to another model including Majorana fermions, MSSM, by the definition of the model file.
1101.0750
Ahmed Ali
Ahmed Ali
Tetraquark interpretation of $e^+ e^- \to \Upsilon \pi^+\pi^-$ Belle data and $e^+ e^- \to b \bar{b}$ BaBar data
6 pages, 2 figures; talk presented at the 35th. International Conference on High Energy Physics - ICHEP2010, July 22-28, 2010, Paris, France
PoS ICHEP2010:136,2010
null
DESY 10-248
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We summarize the main features of the spectroscopy, production and decays of the $J^{PC}=1^{--}$ tetraquarks in the $b\bar{b}$ sector, concentrating on the lowest state called $Y_b(10890)$. The tetraquark framework is used to analyze the BaBar data on the $e^+ e^- \to b\bar{b}$ cross section ($R_b$ energy scan) betwe...
[ { "created": "Tue, 4 Jan 2011 16:06:42 GMT", "version": "v1" } ]
2015-03-17
[ [ "Ali", "Ahmed", "" ] ]
We summarize the main features of the spectroscopy, production and decays of the $J^{PC}=1^{--}$ tetraquarks in the $b\bar{b}$ sector, concentrating on the lowest state called $Y_b(10890)$. The tetraquark framework is used to analyze the BaBar data on the $e^+ e^- \to b\bar{b}$ cross section ($R_b$ energy scan) between...
1504.07608
Heather E. Logan
Heather E. Logan (Carleton U.)
Enhanced hVV couplings in the Georgi-Machacek model and beyond
6 pages, 2 figures. Talk given at the 2nd Toyama International Workshop on Higgs as a Probe of New Physics 2015, 11-15 February 2015, Toyama, Japan
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this talk I discuss extended Higgs sectors in which the 125 GeV Higgs boson couplings to W and Z bosons can be larger than in the Standard Model. Constraints from perturbative unitarity and the electroweak rho parameter limit the number of possible models to a tractable few. Focusing on generalizations of the Geor...
[ { "created": "Tue, 28 Apr 2015 19:28:04 GMT", "version": "v1" } ]
2015-04-29
[ [ "Logan", "Heather E.", "", "Carleton U." ] ]
In this talk I discuss extended Higgs sectors in which the 125 GeV Higgs boson couplings to W and Z bosons can be larger than in the Standard Model. Constraints from perturbative unitarity and the electroweak rho parameter limit the number of possible models to a tractable few. Focusing on generalizations of the Georgi...
hep-ph/9701208
Lee Jungil
Seungwon Baek (Seoul National Univ.), P. Ko (Hong-Ik Univ.), Jungil Lee and H.S. Song (Seoul National Univ.)
Color-octet mechanism and J/psi polarization at LEP
15 pages, minor changes, version to be published in Phys. Rev. D
Phys.Rev. D55 (1997) 6839-6843
10.1103/PhysRevD.55.6839
SNUTP-97-001
hep-ph
null
Polarized heavy quarkonium productions in $Z^0$ decays are considered. We find that polarizations of the produced quarkonia are independent of that of the parent Z^0 provided that one considers the energy distribution or the total production rate. Produced J/psi's via the color-octet and the color- singlet mechanisms...
[ { "created": "Fri, 3 Jan 1997 11:35:26 GMT", "version": "v1" }, { "created": "Thu, 13 Mar 1997 13:23:31 GMT", "version": "v2" } ]
2009-10-30
[ [ "Baek", "Seungwon", "", "Seoul National Univ." ], [ "Ko", "P.", "", "Hong-Ik Univ." ], [ "Lee", "Jungil", "", "Seoul National Univ." ], [ "Song", "H. S.", "", "Seoul National Univ." ] ]
Polarized heavy quarkonium productions in $Z^0$ decays are considered. We find that polarizations of the produced quarkonia are independent of that of the parent Z^0 provided that one considers the energy distribution or the total production rate. Produced J/psi's via the color-octet and the color- singlet mechanisms a...
hep-ph/0309341
Wolfgang Lucha
Wolfgang Lucha and F. F. Schoberl
The charmed strange meson system
11 pages LaTeX
Mod.Phys.Lett. A18 (2003) 2837-2847
10.1142/S0217732303012453
HEPHY-PUB 775/03
hep-ph hep-ex hep-lat nucl-ex nucl-th
null
Motivated by the recent surprising discovery of two new meson states with c s-bar quark content but unexpectedly low masses and narrow total decay widths, we work out, in a nonrelativistic potential-model approach developed already some two decades ago, the predictions for the energy levels of the corresponding charm...
[ { "created": "Tue, 30 Sep 2003 13:33:59 GMT", "version": "v1" } ]
2009-11-10
[ [ "Lucha", "Wolfgang", "" ], [ "Schoberl", "F. F.", "" ] ]
Motivated by the recent surprising discovery of two new meson states with c s-bar quark content but unexpectedly low masses and narrow total decay widths, we work out, in a nonrelativistic potential-model approach developed already some two decades ago, the predictions for the energy levels of the corresponding charm-a...
hep-ph/9405274
null
F.J. Botella (Valencia U.), S. Noguera (Valencia U.), J. Portoles (Durham U.)
Parameter free calculation of non-resonant three body decays of charmed mesons in a weak gauged U(4)_L x U(4)_R Chiral Lagrangian Model
20 pages, LaTeX (no macros needed) , two figures included (feynman.tex file needed for the figures appended at the end of the file). Version accepted for publication in Phys. Lett. B
Phys.Lett. B360 (1995) 101-108
10.1016/0370-2693(95)01126-B
FTUV/94-24, IFIC/94-22, DTP/94-28
hep-ph
null
Non--resonant decays of charmed mesons into three pseudoscalars are analyzed in a weak gauged $U(4)_L \otimes U(4)_R$ chiral lagrangian model. The calculation is free of unknown parameters and only requires the masses of pseudoscalar mesons as hadronic inputs. When comparison with experimental data is possible we fin...
[ { "created": "Thu, 12 May 1994 19:29:06 GMT", "version": "v1" }, { "created": "Fri, 8 Sep 1995 13:19:10 GMT", "version": "v2" } ]
2009-10-28
[ [ "Botella", "F. J.", "", "Valencia U." ], [ "Noguera", "S.", "", "Valencia U." ], [ "Portoles", "J.", "", "Durham U." ] ]
Non--resonant decays of charmed mesons into three pseudoscalars are analyzed in a weak gauged $U(4)_L \otimes U(4)_R$ chiral lagrangian model. The calculation is free of unknown parameters and only requires the masses of pseudoscalar mesons as hadronic inputs. When comparison with experimental data is possible we find ...
hep-ph/9411210
Nicola Di Bartolomeo
N. Di Bartolomeo, F. Feruglio, R. Gatto and G. Nardulli
Heavy Meson Hyperfine Splitting: A Complete $1/m_Q$ Calculation
11 pages, LaTeX, no figures
Phys.Lett. B347 (1995) 405-412
10.1016/0370-2693(95)00071-R
UGVA-DPT 1994/10-864, BARI/TH 190-94
hep-ph
null
The hyperfine splittings $\Delta_D=(m_{D^*_s}-m_{D_s})-(m_{D^{*+}}-m_{D^+})$ and $\Delta_B=(m_{B^*_s}-m_{B_s})-(m_{B^{*0}}-m_{B^0})$ are analyzed in the framework of an effective lagrangian possessing chiral, heavy flavour and spin symmetries, explicitly broken by a complete set of first order terms. Among these term...
[ { "created": "Wed, 2 Nov 1994 17:25:56 GMT", "version": "v1" } ]
2009-10-28
[ [ "Di Bartolomeo", "N.", "" ], [ "Feruglio", "F.", "" ], [ "Gatto", "R.", "" ], [ "Nardulli", "G.", "" ] ]
The hyperfine splittings $\Delta_D=(m_{D^*_s}-m_{D_s})-(m_{D^{*+}}-m_{D^+})$ and $\Delta_B=(m_{B^*_s}-m_{B_s})-(m_{B^{*0}}-m_{B^0})$ are analyzed in the framework of an effective lagrangian possessing chiral, heavy flavour and spin symmetries, explicitly broken by a complete set of first order terms. Among these terms,...
1312.3081
Antony Martini
J.M. Gerard and A. Martini
Ultimate survival in anomalous psi(2S) decays
6 pages, 3 figures, 1 table
null
10.1016/j.physletb.2014.01.068
CP3-13-54
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The hierarchy among the radiative $\gamma$($\pi^0$, $\eta$, $\eta^{\prime}$) decay channels for the $\psi^{\prime}$ looks quite different from the $J/\psi$ one. The fate of charm, namely an ultimate survival of on-shell $c \bar{c}$ intermediate states, might give us the clue for this new puzzle in exclusive charmoniu...
[ { "created": "Wed, 11 Dec 2013 09:02:33 GMT", "version": "v1" } ]
2014-02-12
[ [ "Gerard", "J. M.", "" ], [ "Martini", "A.", "" ] ]
The hierarchy among the radiative $\gamma$($\pi^0$, $\eta$, $\eta^{\prime}$) decay channels for the $\psi^{\prime}$ looks quite different from the $J/\psi$ one. The fate of charm, namely an ultimate survival of on-shell $c \bar{c}$ intermediate states, might give us the clue for this new puzzle in exclusive charmonium ...
2005.06475
Ulrich Haisch
Luca Buonocore, Ulrich Haisch, Paolo Nason, Francesco Tramontano and Giulia Zanderighi
Lepton-quark collisions at the Large Hadron Collider
7 pages, 4 figures, v2: extended version of the manuscript that has been accepted for publication by PRL
null
10.1103/PhysRevLett.125.231804
MPP-2020-69, ZU-TH 14/20
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Processes commonly studied at the Large Hadron Collider (LHC) are induced by quarks and gluons inside the protons of the LHC beams. In this letter we demonstrate that, since protons also contain leptons, it is possible to target lepton-induced processes at the LHC as well. In particular, by picking a lepton from one ...
[ { "created": "Wed, 13 May 2020 18:00:01 GMT", "version": "v1" }, { "created": "Tue, 10 Nov 2020 14:06:45 GMT", "version": "v2" } ]
2020-12-30
[ [ "Buonocore", "Luca", "" ], [ "Haisch", "Ulrich", "" ], [ "Nason", "Paolo", "" ], [ "Tramontano", "Francesco", "" ], [ "Zanderighi", "Giulia", "" ] ]
Processes commonly studied at the Large Hadron Collider (LHC) are induced by quarks and gluons inside the protons of the LHC beams. In this letter we demonstrate that, since protons also contain leptons, it is possible to target lepton-induced processes at the LHC as well. In particular, by picking a lepton from one be...
2402.03057
Leon von Detten
Leon von Detten, Vadim Baru, Christoph Hanhart, Qian Wang, Daniel Winney, Qiang Zhao
How many vector charmonium(-like) states sit in the energy range from $4.2$ to $4.35$ GeV?
42 pages, published in PRD
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In recent years many vector charmonium(-like) states were reported by different electron-positron collider experiments above $4.2$ GeV. However, so far, there not only exists sizable tension in the parameters of those states, but there is also no consensus on the number of the vector states in this energy range. To s...
[ { "created": "Mon, 5 Feb 2024 14:45:07 GMT", "version": "v1" }, { "created": "Thu, 8 Feb 2024 14:04:44 GMT", "version": "v2" }, { "created": "Tue, 25 Jun 2024 07:56:10 GMT", "version": "v3" } ]
2024-06-26
[ [ "von Detten", "Leon", "" ], [ "Baru", "Vadim", "" ], [ "Hanhart", "Christoph", "" ], [ "Wang", "Qian", "" ], [ "Winney", "Daniel", "" ], [ "Zhao", "Qiang", "" ] ]
In recent years many vector charmonium(-like) states were reported by different electron-positron collider experiments above $4.2$ GeV. However, so far, there not only exists sizable tension in the parameters of those states, but there is also no consensus on the number of the vector states in this energy range. To som...
hep-ph/0602216
Qiang Zhao
Qiang Zhao
A study of the Okubo-Zweig-Iizuka rule violations in $\eta_c\to VV$
6 pages, 1 figure; typos corrected; version to appear in Phys. Lett. B
Phys.Lett.B636:197-200,2006
10.1016/j.physletb.2006.03.043
null
hep-ph hep-ex
null
We discuss the Okubo-Zweig-Iizuka (OZI) rule violation effects in $\eta_c\to VV$ in light of the new data from BES Collaboration. In particular, a possible non-vanishing branching ratio for $\eta_c\to \omega\phi$ provides a hint of the degrees of OZI violations based on a recent factorization proposed for charmonium ...
[ { "created": "Thu, 23 Feb 2006 10:58:16 GMT", "version": "v1" }, { "created": "Tue, 21 Mar 2006 14:37:14 GMT", "version": "v2" } ]
2008-11-26
[ [ "Zhao", "Qiang", "" ] ]
We discuss the Okubo-Zweig-Iizuka (OZI) rule violation effects in $\eta_c\to VV$ in light of the new data from BES Collaboration. In particular, a possible non-vanishing branching ratio for $\eta_c\to \omega\phi$ provides a hint of the degrees of OZI violations based on a recent factorization proposed for charmonium ha...
hep-ph/9607370
null
L. E. Gordon (ANL), J. K. Storrow (Manchester)
New Parton Distribution Functions for the Photon
33 pages, 8 figures, uses epsf
Nucl.Phys.B489:405-426,1997
10.1016/S0550-3213(97)00048-5
ANL-HEP-PR-96-33, MC-TH-96/16
hep-ph
null
We present new improved parton distributions for the photon. We fit {\bf all} available data on the photon structure function, $F^{\gamma}_{2}(x,Q^2)$, with $Q^2\ge 3$ GeV$^2$, in order to determine the quark distributions. We also pay particular attention to the gluon distribution in the photon, $g^{\gamma}(x,Q^2)$,...
[ { "created": "Thu, 18 Jul 1996 20:45:52 GMT", "version": "v1" } ]
2011-07-19
[ [ "Gordon", "L. E.", "", "ANL" ], [ "Storrow", "J. K.", "", "Manchester" ] ]
We present new improved parton distributions for the photon. We fit {\bf all} available data on the photon structure function, $F^{\gamma}_{2}(x,Q^2)$, with $Q^2\ge 3$ GeV$^2$, in order to determine the quark distributions. We also pay particular attention to the gluon distribution in the photon, $g^{\gamma}(x,Q^2)$, w...
2208.08453
Ennio Salvioni
Lucas Puetter, Joshua T. Ruderman, Ennio Salvioni, Bibhushan Shakya
Bouncing Dark Matter
9 pages, 7 figures; v2: minor changes and references added, matches published version
Phys. Rev. D 109, 023032 (2024)
10.1103/PhysRevD.109.023032
DESY-22-125
hep-ph astro-ph.CO astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a novel mechanism for thermal dark matter production, characterized by a "bounce": the dark matter equilibrium distribution transitions from the canonical exponentially falling abundance to an exponentially rising one, resulting in an enhancement of the freezeout abundance by many orders of magnitude. We d...
[ { "created": "Wed, 17 Aug 2022 18:00:03 GMT", "version": "v1" }, { "created": "Fri, 2 Feb 2024 14:53:27 GMT", "version": "v2" } ]
2024-02-05
[ [ "Puetter", "Lucas", "" ], [ "Ruderman", "Joshua T.", "" ], [ "Salvioni", "Ennio", "" ], [ "Shakya", "Bibhushan", "" ] ]
We present a novel mechanism for thermal dark matter production, characterized by a "bounce": the dark matter equilibrium distribution transitions from the canonical exponentially falling abundance to an exponentially rising one, resulting in an enhancement of the freezeout abundance by many orders of magnitude. We dis...
hep-ph/0107069
Cvetic
Gorazd Cvetic (UTFSM, Valparaiso), Taekoon Lee (KAIST, Daejon), and Ivan Schmidt (UTFSM)
Resummations with renormalon effects for the hadronic vacuum polarization contribution to the muon (g-2)
16 pages, 2 eps-figures, revtex; changes in presentation; different consideration of the (rho -> pi pi gamma) channel in the data part; as a consequence, the results change slightly
Phys.Lett. B520 (2001) 222-232
10.1016/S0370-2693(01)01151-0
null
hep-ph
null
The hadronic vacuum polarization contribution to the muon (g-2) value is calculated by considering a known dispersion integral which involves the $R_{e+ e-}(s)$ ratio. The theoretical part stemming from the region below 1.8 GeV is the largest contribution in our approach, and is calculated by using a contour integral...
[ { "created": "Fri, 6 Jul 2001 15:48:20 GMT", "version": "v1" }, { "created": "Tue, 7 Aug 2001 13:13:04 GMT", "version": "v2" }, { "created": "Tue, 21 Aug 2001 16:02:33 GMT", "version": "v3" } ]
2009-11-07
[ [ "Cvetic", "Gorazd", "", "UTFSM, Valparaiso" ], [ "Lee", "Taekoon", "", "KAIST, Daejon" ], [ "Schmidt", "Ivan", "", "UTFSM" ] ]
The hadronic vacuum polarization contribution to the muon (g-2) value is calculated by considering a known dispersion integral which involves the $R_{e+ e-}(s)$ ratio. The theoretical part stemming from the region below 1.8 GeV is the largest contribution in our approach, and is calculated by using a contour integral i...
hep-ph/0309115
Ngoc-Khanh Tran
Pham Quang Hung, Ngoc-Khanh Tran
Kaluza-Klein Structure Associated With Fat Brane
RevTex4, 29 pages, 7 ps figures, new references added
Phys.Rev. D69 (2004) 064003
10.1103/PhysRevD.69.064003
null
hep-ph
null
It is known that the imposition of orbifold boundary conditions on background scalar field can give rise to a non-trivial vacuum expectation value (VEV) along extra dimensions, which in turn generates fat branes and associated unconventional Kaluza-Klein (KK) towers of fermions. We study the structure of these KK tow...
[ { "created": "Wed, 10 Sep 2003 21:56:25 GMT", "version": "v1" }, { "created": "Tue, 23 Sep 2003 18:19:56 GMT", "version": "v2" } ]
2009-11-10
[ [ "Hung", "Pham Quang", "" ], [ "Tran", "Ngoc-Khanh", "" ] ]
It is known that the imposition of orbifold boundary conditions on background scalar field can give rise to a non-trivial vacuum expectation value (VEV) along extra dimensions, which in turn generates fat branes and associated unconventional Kaluza-Klein (KK) towers of fermions. We study the structure of these KK tower...
2302.10782
Federico Vazzoler
Simone Amoroso, Mauro Chiesa, Clara Lavinia Del Pio, Katerina Lipka, Fulvio Piccinini, Federico Vazzoler, Alessandro Vicini
Probing the weak mixing angle at high energies at the LHC and HL-LHC
null
null
10.1016/j.physletb.2023.138103
DESY 23-028
hep-ph
http://creativecommons.org/licenses/by/4.0/
Measurements of neutral current Drell-Yan production at large invariant dilepton masses can be used to test the energy scale dependence (running) of the electroweak mixing angle. In this work, we make use of a novel implementation of the full next-to-leading order electroweak radiative corrections to the Drell-Yan pr...
[ { "created": "Tue, 21 Feb 2023 16:18:41 GMT", "version": "v1" }, { "created": "Mon, 11 Mar 2024 09:09:36 GMT", "version": "v2" } ]
2024-03-12
[ [ "Amoroso", "Simone", "" ], [ "Chiesa", "Mauro", "" ], [ "Del Pio", "Clara Lavinia", "" ], [ "Lipka", "Katerina", "" ], [ "Piccinini", "Fulvio", "" ], [ "Vazzoler", "Federico", "" ], [ "Vicini", "Alessandro", ...
Measurements of neutral current Drell-Yan production at large invariant dilepton masses can be used to test the energy scale dependence (running) of the electroweak mixing angle. In this work, we make use of a novel implementation of the full next-to-leading order electroweak radiative corrections to the Drell-Yan proc...
1906.10739
Yang Bai
Eduardo Pont\'on, Yang Bai and Bithika Jain
Electroweak Symmetric Dark Matter Balls
50 pages, 10 figures
null
10.1007/s13130-019-11194-5
null
hep-ph astro-ph.HE hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the simple Higgs-portal dark matter model with a conserved dark matter number, we show that there exists a non-topological soliton state of dark matter. This state has smaller energy per dark matter number than a free particle state and has its interior in the electroweak symmetric vacuum. It could be produced in ...
[ { "created": "Tue, 25 Jun 2019 19:42:58 GMT", "version": "v1" } ]
2019-10-02
[ [ "Pontón", "Eduardo", "" ], [ "Bai", "Yang", "" ], [ "Jain", "Bithika", "" ] ]
In the simple Higgs-portal dark matter model with a conserved dark matter number, we show that there exists a non-topological soliton state of dark matter. This state has smaller energy per dark matter number than a free particle state and has its interior in the electroweak symmetric vacuum. It could be produced in th...
1209.0907
Laura Tolos
L. Tolos, C. Garcia-Recio, J. Nieves, O. Romanets and L. L. Salcedo
Charm and Strangeness with Heavy-Quark Spin Symmetry
10 pages, 5 figures, to appear in the proceedings of The 5th International Workshop on Charm Physics (Charm 2012)
null
null
null
hep-ph hep-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study charmed and strange baryon resonances that are generated dynamically within a unitary meson-baryon coupled-channel model which incorporates heavy-quark spin symmetry. This is accomplished by extending the SU(3) Weinberg-Tomozawa chiral Lagrangian to SU(8) spin-flavor symmetry and implementing a strong flavor...
[ { "created": "Wed, 5 Sep 2012 09:41:09 GMT", "version": "v1" } ]
2012-09-06
[ [ "Tolos", "L.", "" ], [ "Garcia-Recio", "C.", "" ], [ "Nieves", "J.", "" ], [ "Romanets", "O.", "" ], [ "Salcedo", "L. L.", "" ] ]
We study charmed and strange baryon resonances that are generated dynamically within a unitary meson-baryon coupled-channel model which incorporates heavy-quark spin symmetry. This is accomplished by extending the SU(3) Weinberg-Tomozawa chiral Lagrangian to SU(8) spin-flavor symmetry and implementing a strong flavor s...
2210.05260
Luca Paolo Wiggering
Michael Klasen, Karol Kova\v{r}\'ik and Luca Paolo Wiggering
Radiative corrections to stop-antistop annihilation into gluons and light quarks
20 pages, 20 figures, 2 tables; content matches published version
Phys. Rev. D 106, 115032 (2022)
10.1103/PhysRevD.106.115032
MS-TP-22-16
hep-ph
http://creativecommons.org/licenses/by/4.0/
We present the full one-loop SUSY-QCD corrections to stop-antistop annihilation into gluons and light quarks within the Minimal Supersymmetric Standard Model including Sommerfeld enhancement effects from the exchange of multiple gluons between the incoming particles. These corrections are important as stop (co)annihi...
[ { "created": "Tue, 11 Oct 2022 08:42:19 GMT", "version": "v1" }, { "created": "Tue, 10 Jan 2023 09:44:44 GMT", "version": "v2" } ]
2023-01-11
[ [ "Klasen", "Michael", "" ], [ "Kovařík", "Karol", "" ], [ "Wiggering", "Luca Paolo", "" ] ]
We present the full one-loop SUSY-QCD corrections to stop-antistop annihilation into gluons and light quarks within the Minimal Supersymmetric Standard Model including Sommerfeld enhancement effects from the exchange of multiple gluons between the incoming particles. These corrections are important as stop (co)annihila...
hep-ph/0106139
Robert Shrock
Irina Mocioiu and Robert Shrock
Neutrino Oscillations with Two $\Delta m^2$ Scales
24 pages, revtex, 5 postscript figures, some refs. added
JHEP 0111:050,2001
10.1088/1126-6708/2001/11/050
null
hep-ph hep-ex
null
An approximation that is often used in fits to reactor and atmospheric neutrino data and in some studies of future neutrino oscillation experiments is to assume one dominant scale, $\Delta m^2$, of neutrino mass squared differences, in particular, $\Delta m^2_{atm} \sim 3 \times 10^{-3}$ eV$^2$. Here we investigate t...
[ { "created": "Wed, 13 Jun 2001 18:42:18 GMT", "version": "v1" }, { "created": "Mon, 25 Jun 2001 15:26:32 GMT", "version": "v2" }, { "created": "Thu, 15 Nov 2001 00:10:37 GMT", "version": "v3" } ]
2010-05-28
[ [ "Mocioiu", "Irina", "" ], [ "Shrock", "Robert", "" ] ]
An approximation that is often used in fits to reactor and atmospheric neutrino data and in some studies of future neutrino oscillation experiments is to assume one dominant scale, $\Delta m^2$, of neutrino mass squared differences, in particular, $\Delta m^2_{atm} \sim 3 \times 10^{-3}$ eV$^2$. Here we investigate the...
0711.1328
Nora Brambilla
N. Brambilla, A. Vairo
Heavy Quarkonium Physics-Theoretical Status
To be published in Acta Physica Polonica, based on the invited talk given at 31st International Conference of Theoretical Physics: Matter to the Deepest: Recent Development in Physics of Fundamental Interactions, Ustron, Katowice, Poland, 5-11 Sep 2007. References added
ActaPhys.Polon.B38:3429-3440,2007
null
IFUM-907-FT
hep-ph hep-ex
null
We briefly review the theoretical status and the open theoretical challenges in the physics of heavy quarkonium.
[ { "created": "Thu, 8 Nov 2007 17:38:07 GMT", "version": "v1" }, { "created": "Wed, 14 Nov 2007 13:43:43 GMT", "version": "v2" } ]
2008-11-26
[ [ "Brambilla", "N.", "" ], [ "Vairo", "A.", "" ] ]
We briefly review the theoretical status and the open theoretical challenges in the physics of heavy quarkonium.
1802.09467
Neelima Kelkar Dr
D. F. Ram\'irez Jim\'enez, N. G. Kelkar
Different manifestations of S-matrix poles
37 pages, 4 figures
Annals of Physics 396, 18-43 (2018)
10.1016/j.aop.2018.07.001
null
hep-ph nucl-th quant-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Making use of the analytical properties of the $S$-matrix and a theorem of Mittag-Leffler, model independent non-relativistic expressions for cross sections in single channel elastic scattering, scattering phase shifts and survival probabilities of resonances are derived. Provided certain conditions are satisfied by ...
[ { "created": "Mon, 26 Feb 2018 17:28:05 GMT", "version": "v1" }, { "created": "Mon, 16 Jul 2018 19:19:14 GMT", "version": "v2" } ]
2018-07-18
[ [ "Jiménez", "D. F. Ramírez", "" ], [ "Kelkar", "N. G.", "" ] ]
Making use of the analytical properties of the $S$-matrix and a theorem of Mittag-Leffler, model independent non-relativistic expressions for cross sections in single channel elastic scattering, scattering phase shifts and survival probabilities of resonances are derived. Provided certain conditions are satisfied by th...
1903.04289
Urs Wiedemann A
Federico Antinori, Peter Braun-Munzinger, Jan-Fiete Grosse-Oetringhaus, Ulrich Heinz, Barbara Jacak, Peter Jacobs, Alexander Kalweit, Volker Koch, Yen-Jie Lee, Marco Van Leeuwen, Silvia Masciocchi, Guilherme Teixeira De Almeida Milhano, Alexander Milov, Andreas Morsch, Berndt Mueller, James Lawrence Nagle, Anto...
Thoughts on opportunities in high-energy nuclear collisions
10 pages, pdf
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This document reflects thoughts on opportunities from high-energy nuclear collisions in the 2020s.
[ { "created": "Mon, 11 Mar 2019 13:26:15 GMT", "version": "v1" } ]
2019-03-12
[ [ "Antinori", "Federico", "" ], [ "Braun-Munzinger", "Peter", "" ], [ "Grosse-Oetringhaus", "Jan-Fiete", "" ], [ "Heinz", "Ulrich", "" ], [ "Jacak", "Barbara", "" ], [ "Jacobs", "Peter", "" ], [ "Kalweit", "Alexa...
This document reflects thoughts on opportunities from high-energy nuclear collisions in the 2020s.
hep-ph/0012008
Dr. Abdelnasser Tawfik
A.M. Tawfik, E. Ganssauge (Marburg University)
Levy Stable Law Description of the Intermittent Behavior in Pb+Pb Collisions at 158 AGeV/c
24 pages, 11 postscript figures, 2 tables
Heavy Ion Phys. 12 (2000) 53
null
null
hep-ph
null
The factorial moments (FM) of multiplicity distributions in one- and two-dimensions are studied for Pb+Pb collisions at 158 AGeV/c. The results are compared with FRITIOF, RQMD and VENUS predictions. In the relation between FM and the number of partitions, $M$, obvious {\it positive} intermittence exponents, $\phi_q$,...
[ { "created": "Fri, 1 Dec 2000 21:54:34 GMT", "version": "v1" } ]
2009-09-25
[ [ "Tawfik", "A. M.", "", "Marburg University" ], [ "Ganssauge", "E.", "", "Marburg University" ] ]
The factorial moments (FM) of multiplicity distributions in one- and two-dimensions are studied for Pb+Pb collisions at 158 AGeV/c. The results are compared with FRITIOF, RQMD and VENUS predictions. In the relation between FM and the number of partitions, $M$, obvious {\it positive} intermittence exponents, $\phi_q$, a...
1103.0018
Andre Lessa
Vernon Barger, Yu Gao, Andre Lessa and Xerxes Tata
Determining the squark mass at the LHC
20 pages, 9 figures. Footnote added, updated references
Phys.Rev.D83:095013,2011
10.1103/PhysRevD.83.095013
MADPH-11-1569, UH-511-1158-11
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a new way to determine the squark mass based on the shape of di-jet invariant mass distribution of supersymmetry (SUSY) di-jet events at the Large Hadron Collider (LHC). Our algorithm, which is based on event kinematics, requires that the branching ratio $B(\tilde{q} \rightarrow q \tilde{z}_1)$ is substant...
[ { "created": "Mon, 28 Feb 2011 21:03:14 GMT", "version": "v1" }, { "created": "Mon, 4 Jul 2011 20:35:20 GMT", "version": "v2" } ]
2011-07-06
[ [ "Barger", "Vernon", "" ], [ "Gao", "Yu", "" ], [ "Lessa", "Andre", "" ], [ "Tata", "Xerxes", "" ] ]
We propose a new way to determine the squark mass based on the shape of di-jet invariant mass distribution of supersymmetry (SUSY) di-jet events at the Large Hadron Collider (LHC). Our algorithm, which is based on event kinematics, requires that the branching ratio $B(\tilde{q} \rightarrow q \tilde{z}_1)$ is substantia...
1509.06261
Stefan Dittmaier
Stefan Dittmaier
Standard Model Theory
8 pages, pdflatex, 5 figures, contribution to the Proceedings of the 27th Rencontres de Blois
null
null
FR-PHENO-2015-009
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recent progress in the field of precision calculations for Standard Model processes at the LHC is reviewed, highlighting examples of weak gauge-boson and Higgs-boson production, as discussed at the 27th Rencontres de Blois, 2015.
[ { "created": "Mon, 21 Sep 2015 15:08:54 GMT", "version": "v1" } ]
2015-09-22
[ [ "Dittmaier", "Stefan", "" ] ]
Recent progress in the field of precision calculations for Standard Model processes at the LHC is reviewed, highlighting examples of weak gauge-boson and Higgs-boson production, as discussed at the 27th Rencontres de Blois, 2015.
1906.10631
Emma Slade
Emma Slade
Towards global fits in EFT's and New Physics implications
10 pages, 8 figures. To appear in the proceedings of the 7th Annual Conference on Large Hadron Collider Physics - LHCP2019, 20-25 May, 2019, Puebla, Mexico
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
I discuss recent progress on fits to dimension-six operators in the Standard Model Effective Theory (SMEFT). I focus on the top quark sector of the SMEFT, as well as the theoretical advances made in computing SMEFT effects through to next-to-leading order in QCD and the use of these calculations in global fits. I als...
[ { "created": "Tue, 25 Jun 2019 16:17:31 GMT", "version": "v1" } ]
2019-06-26
[ [ "Slade", "Emma", "" ] ]
I discuss recent progress on fits to dimension-six operators in the Standard Model Effective Theory (SMEFT). I focus on the top quark sector of the SMEFT, as well as the theoretical advances made in computing SMEFT effects through to next-to-leading order in QCD and the use of these calculations in global fits. I also ...
hep-ph/9807501
Pran Nath
Tarek Ibrahim and Pran Nath
The Neutron and the Lepton EDMs in MSSM, Large CP violating Phases, and the Cancellation Mechanism
10 pages, Latex, no figures
Phys.Rev.D58:111301,1998; Erratum-ibid.D60:099902,1999
10.1103/PhysRevD.58.111301 10.1103/PhysRevD.60.099902
null
hep-ph
null
An analysis of the electric dipole moment (EDM) of the neutron and of the leptons in the minimal supersymmetric standard model (MSSM) with the most general allowed set of CP violating phases without generational mixing is given. The analysis includes the contributions from the gluino, the chargino and the neutralino ...
[ { "created": "Sun, 26 Jul 1998 18:47:37 GMT", "version": "v1" } ]
2014-11-17
[ [ "Ibrahim", "Tarek", "" ], [ "Nath", "Pran", "" ] ]
An analysis of the electric dipole moment (EDM) of the neutron and of the leptons in the minimal supersymmetric standard model (MSSM) with the most general allowed set of CP violating phases without generational mixing is given. The analysis includes the contributions from the gluino, the chargino and the neutralino ex...
hep-ph/0003162
B. Ananthanarayan
B. Ananthanarayan (Bangalore)
Infra-red fixed points in supersymmetry
5 pages Latex with 2 figures embedded as eps files Talk given at WHEPP6, Chennai, India, January 3-15, 2000, to appear in special issue of Pramana
Pramana 55 (2000) 253-258
10.1007/s12043-000-0102-5
IISc-CTS-5/00
hep-ph
null
Model independent constraints on supersymmetric models emerge when certain couplings are drawn towards their infra-red (quasi) fixed points in the course of their renormalization group evolution. The general principles are first reviewed and the conclusions for some recent studies of theories with R-parity and baryon...
[ { "created": "Thu, 16 Mar 2000 12:15:53 GMT", "version": "v1" } ]
2009-10-31
[ [ "Ananthanarayan", "B.", "", "Bangalore" ] ]
Model independent constraints on supersymmetric models emerge when certain couplings are drawn towards their infra-red (quasi) fixed points in the course of their renormalization group evolution. The general principles are first reviewed and the conclusions for some recent studies of theories with R-parity and baryon a...
1110.1162
D. V. Ahluwalia
S. P. Horvath, D. Schritt, D. V. Ahluwalia
Amplitudes for space-like separations and causality
Re-written, takes into account latest ICARUS data
null
null
null
hep-ph hep-ex
http://creativecommons.org/licenses/by-nc-sa/3.0/
This paper explores whether quantum field theory allows the events of emission and absorption of a single particle to be separated by a space-like interval without violating Lorentz symmetries and causality. Although the answer is indeed affirmative, traditionally such effects have been considered negligible. We show...
[ { "created": "Thu, 6 Oct 2011 07:13:45 GMT", "version": "v1" }, { "created": "Wed, 28 Dec 2011 03:11:46 GMT", "version": "v2" }, { "created": "Mon, 2 Apr 2012 01:25:56 GMT", "version": "v3" } ]
2012-04-03
[ [ "Horvath", "S. P.", "" ], [ "Schritt", "D.", "" ], [ "Ahluwalia", "D. V.", "" ] ]
This paper explores whether quantum field theory allows the events of emission and absorption of a single particle to be separated by a space-like interval without violating Lorentz symmetries and causality. Although the answer is indeed affirmative, traditionally such effects have been considered negligible. We show t...
1412.1806
Peter Schichtel
Erik Gerwick, Peter Schichtel
Jet properties at high-multiplicity
17 pages, 5 figures; v2: that typo never happened
null
null
IPPP/14/104, DCPT/14/208, MCnet-14-24
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the behaviour of jets at high-multiplicity using analytic techniques. We consider in detail the rates, areas and the intermediate splitting scales as a function of the number of jets. In each case, we are able to characterise a general scaling behaviour characteristic for QCD processes, which we compar...
[ { "created": "Thu, 4 Dec 2014 20:36:44 GMT", "version": "v1" }, { "created": "Fri, 5 Dec 2014 10:20:45 GMT", "version": "v2" } ]
2014-12-08
[ [ "Gerwick", "Erik", "" ], [ "Schichtel", "Peter", "" ] ]
We investigate the behaviour of jets at high-multiplicity using analytic techniques. We consider in detail the rates, areas and the intermediate splitting scales as a function of the number of jets. In each case, we are able to characterise a general scaling behaviour characteristic for QCD processes, which we compare ...
1212.6486
Yusuke Shimizu
Yusuke Shimizu, Morimitsu Tanimoto, Kei Yamamoto
SUSY contributions to CP violations in $b\to s$ and $b\to d$ transitions facing on new data
17 pages, 12 figures, some discussions are added
null
10.1103/PhysRevD.87.056004
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the contribution of the gluino-squark mediated flavor changing process for the CP violation in $b\to s$ and $b\to d$ transitions facing on recent experimental data. The mass insertion parameters of squarks are constrained by the branching ratios of $b\to s\gamma $ and $b\to d\gamma $ decays. In addition, the...
[ { "created": "Fri, 28 Dec 2012 08:54:34 GMT", "version": "v1" }, { "created": "Tue, 8 Jan 2013 07:46:24 GMT", "version": "v2" }, { "created": "Wed, 6 Feb 2013 17:54:43 GMT", "version": "v3" } ]
2013-03-14
[ [ "Shimizu", "Yusuke", "" ], [ "Tanimoto", "Morimitsu", "" ], [ "Yamamoto", "Kei", "" ] ]
We study the contribution of the gluino-squark mediated flavor changing process for the CP violation in $b\to s$ and $b\to d$ transitions facing on recent experimental data. The mass insertion parameters of squarks are constrained by the branching ratios of $b\to s\gamma $ and $b\to d\gamma $ decays. In addition, the t...
0809.0130
Fen Zuo
Tao Huang, Zuo-Hong Li and Fen Zuo
Heavy-to-light transition form factors and their relations in light-cone QCD sum rules
1+16 pages, no figures
Eur.Phys.J.C60:63-71,2009
10.1140/epjc/s10052-008-0855-4
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The improved light-cone QCD sum rules by using chiral current correlator is systematically reviewed and applied to the calculation of all the heavy-to-light form factors, including all the semileptonic and penguin ones. By choosing suitable chiral currents, the light-cone sum rules for all the form factors are greatl...
[ { "created": "Sun, 31 Aug 2008 15:06:35 GMT", "version": "v1" } ]
2009-03-12
[ [ "Huang", "Tao", "" ], [ "Li", "Zuo-Hong", "" ], [ "Zuo", "Fen", "" ] ]
The improved light-cone QCD sum rules by using chiral current correlator is systematically reviewed and applied to the calculation of all the heavy-to-light form factors, including all the semileptonic and penguin ones. By choosing suitable chiral currents, the light-cone sum rules for all the form factors are greatly ...
1504.02780
Nima Pourtolami
Mariana Frank, Cherif Hamzaoui, Nima Pourtolami, Manuel Toharia
Fermion Masses and Mixing in General Warped Extra Dimensional Models
33 pages, 7 figures
Phys. Rev. D 91, 116001 (2015)
10.1103/PhysRevD.91.116001
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze fermion masses and mixing in a general warped extra dimensional model, where all the Standard Model (SM) fields, including the Higgs, are allowed to propagate in the bulk. In this context, a slightly broken flavor symmetry imposed universally on all fermion fields, without distinction, can generate the ful...
[ { "created": "Fri, 10 Apr 2015 20:00:59 GMT", "version": "v1" } ]
2015-06-10
[ [ "Frank", "Mariana", "" ], [ "Hamzaoui", "Cherif", "" ], [ "Pourtolami", "Nima", "" ], [ "Toharia", "Manuel", "" ] ]
We analyze fermion masses and mixing in a general warped extra dimensional model, where all the Standard Model (SM) fields, including the Higgs, are allowed to propagate in the bulk. In this context, a slightly broken flavor symmetry imposed universally on all fermion fields, without distinction, can generate the full ...
hep-ph/0508159
Mrinal Dasgupta
A. Banfi and M. Dasgupta
Problems in resumming interjet energy flows with k_t clustering
11 pages, 5 figures
Phys.Lett.B628:49-56,2005
10.1016/j.physletb.2005.08.125
null
hep-ph
null
We consider the energy flow into gaps between hard jets. It was previously believed that the accuracy of resummed predictions for such observables can be improved by employing the $k_t$ clustering procedure to define the gap energy in terms of a sum of energies of soft jets (rather than individual hadrons) in the gap...
[ { "created": "Sat, 13 Aug 2005 20:59:59 GMT", "version": "v1" } ]
2011-03-23
[ [ "Banfi", "A.", "" ], [ "Dasgupta", "M.", "" ] ]
We consider the energy flow into gaps between hard jets. It was previously believed that the accuracy of resummed predictions for such observables can be improved by employing the $k_t$ clustering procedure to define the gap energy in terms of a sum of energies of soft jets (rather than individual hadrons) in the gap. ...
1008.3949
Tom Steele
Martin Lavelle, David McMullan, Tom Steele
Soft Collinear Degeneracies in an Asymptotically Free Theory
10 pages with embedded figures in LaTeX
null
null
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In asymptotically free theories with collinear divergences it is sometimes claimed that these divergences cancel if one sums over initial and final state degenerate cross-sections and uses an off-shell renormalisation scheme. We show for scalar $\phi^3$ theory in six dimensions that there are further classes of soft ...
[ { "created": "Tue, 24 Aug 2010 01:53:35 GMT", "version": "v1" } ]
2010-08-25
[ [ "Lavelle", "Martin", "" ], [ "McMullan", "David", "" ], [ "Steele", "Tom", "" ] ]
In asymptotically free theories with collinear divergences it is sometimes claimed that these divergences cancel if one sums over initial and final state degenerate cross-sections and uses an off-shell renormalisation scheme. We show for scalar $\phi^3$ theory in six dimensions that there are further classes of soft co...
hep-ph/0111307
Marco Battaglia
M. Battaglia and A. De Roeck
Determination of the muon Yukawa coupling at high energy e+e- linear colliders
3 pages, 2 figures, to appear on the proceedings of the Snowmass 2001 Summer Study, Snowmass CO, June-July 2001
eConf C010630:E3066,2001
null
null
hep-ph
null
The perspectives for the observation of the rare decay H -> mumu decay and the determination of the muon Yukawa coupling at a TeV-class and at a multi-TeV e+e- linear colliders are discussed. The signal for the decay can be obtained at 0.8 TeV and a first estimate of the coupling derived. A linear collider operating ...
[ { "created": "Fri, 23 Nov 2001 17:26:18 GMT", "version": "v1" } ]
2014-11-17
[ [ "Battaglia", "M.", "" ], [ "De Roeck", "A.", "" ] ]
The perspectives for the observation of the rare decay H -> mumu decay and the determination of the muon Yukawa coupling at a TeV-class and at a multi-TeV e+e- linear colliders are discussed. The signal for the decay can be obtained at 0.8 TeV and a first estimate of the coupling derived. A linear collider operating at...
hep-ph/9501245
Marcus Hutter
Marcus Hutter
Instantons and Meson Correlators in QCD
43 latex pages, 7 1/2 figures included by epsf.tex-macro
Z.Phys.C74:131-143,1997
10.1007/s002880050376
LMU-Muenchen HEP-93-18
hep-ph
null
Various QCD correlators are calculated in the instanton liquid model in zeromode approximation and $1/N_c$ expansion. Previous works are extended by including dynamical quark loops. In contrast to the original "perturbative" $1/N_c$ expansion not all quark loops are suppressed. In the flavor singlet meson correlators...
[ { "created": "Mon, 9 Jan 1995 16:11:33 GMT", "version": "v1" } ]
2014-11-17
[ [ "Hutter", "Marcus", "" ] ]
Various QCD correlators are calculated in the instanton liquid model in zeromode approximation and $1/N_c$ expansion. Previous works are extended by including dynamical quark loops. In contrast to the original "perturbative" $1/N_c$ expansion not all quark loops are suppressed. In the flavor singlet meson correlators a...
0711.2870
Stefano Scopel
Stefano Scopel (Korea Inst. Advanced Study, Seoul)
Particle Dark Matter Candidates
7 pages, 4 figures, 3 references added. Contribution to the proceedings of the TAUP 07 conference, Sep. 11-15, Sendai, Japan
J.Phys.Conf.Ser.120:042003,2008
10.1088/1742-6596/120/4/042003
null
hep-ph
null
I give a short overview on some of the favorite particle Cold Dark Matter candidates today, focusing on those having detectable interactions: the axion, the KK-photon in Universal Extra Dimensions, the heavy photon in Little Higgs and the neutralino in Supersymmetry. The neutralino is still the most popular, and toda...
[ { "created": "Mon, 19 Nov 2007 09:45:02 GMT", "version": "v1" }, { "created": "Tue, 27 Nov 2007 10:27:33 GMT", "version": "v2" } ]
2008-11-26
[ [ "Scopel", "Stefano", "", "Korea Inst. Advanced Study, Seoul" ] ]
I give a short overview on some of the favorite particle Cold Dark Matter candidates today, focusing on those having detectable interactions: the axion, the KK-photon in Universal Extra Dimensions, the heavy photon in Little Higgs and the neutralino in Supersymmetry. The neutralino is still the most popular, and today ...
hep-ph/9602218
null
Benjamin Grinstein and Richard F. Lebed
SU(3) Decomposition of Two-Body B Decay Amplitudes
31 pages, revtex, no figures
Phys.Rev. D53 (1996) 6344-6360
10.1103/PhysRevD.53.6344
UCSD/PTH 96-01
hep-ph
null
We present the complete flavor SU(3) decomposition of decay amplitudes for decays of the triplet (B^+_u, B^0_d, B^0_s) of B mesons nonleptonically into two pseudoscalar mesons. This analysis holds for arbitrarily broken SU(3) and can be used to generate amplitude relations when physical arguments permit one to neglec...
[ { "created": "Sat, 3 Feb 1996 00:08:26 GMT", "version": "v1" } ]
2009-10-28
[ [ "Grinstein", "Benjamin", "" ], [ "Lebed", "Richard F.", "" ] ]
We present the complete flavor SU(3) decomposition of decay amplitudes for decays of the triplet (B^+_u, B^0_d, B^0_s) of B mesons nonleptonically into two pseudoscalar mesons. This analysis holds for arbitrarily broken SU(3) and can be used to generate amplitude relations when physical arguments permit one to neglect ...
hep-ph/0702006
Zhun Lu
Zhun Lu, Bo-Qiang Ma, Ivan Schmidt
Flavor separation of the Boer-Mulders function from unpolarized $\pi^- p$ and $\pi^- D$ Drell-Yan processes
10 pages, 2 figures, published in Physics Letters B
Phys.Lett. B639 (2006) 494-498
10.1016/j.physletb.2006.06.053
USM-TH-177
hep-ph
null
We show that measuring the $\cos 2\phi $ angular dependence in unpolarized Drell-Yan processes with $\pi^-$ beams colliding on proton and deuteron targets can determine the ratio of the Boer-Mulders functions for $d$ and $u$ quarks inside the proton $h_1^{\perp,d}/h_1^{\perp,u}$, which is still lack of theoretical co...
[ { "created": "Wed, 31 Jan 2007 23:23:19 GMT", "version": "v1" } ]
2009-11-13
[ [ "Lu", "Zhun", "" ], [ "Ma", "Bo-Qiang", "" ], [ "Schmidt", "Ivan", "" ] ]
We show that measuring the $\cos 2\phi $ angular dependence in unpolarized Drell-Yan processes with $\pi^-$ beams colliding on proton and deuteron targets can determine the ratio of the Boer-Mulders functions for $d$ and $u$ quarks inside the proton $h_1^{\perp,d}/h_1^{\perp,u}$, which is still lack of theoretical cons...
hep-ph/9605385
Apostolos Pilaftsis
Joannis Papavassiliou (CPT) and Apostolos Pilaftsis (Rutherford)
Gauge-Invariant Resummation Formalism for Two-Point Correlation Functions
50 pages, LaTeX (axodraw.sty included)
Phys.Rev.D54:5315-5335,1996
10.1103/PhysRevD.54.5315
RAL-TR/96-029
hep-ph
null
The consistent description of unstable particles, renormalons, or other Schwinger--Dyson-type of solutions within the framework of perturbative gauge field theories necessitates the definition and resummation of off-shell Green's functions, which must respect several crucial physical requirements. A formalism is pres...
[ { "created": "Thu, 23 May 1996 16:13:57 GMT", "version": "v1" } ]
2011-08-17
[ [ "Papavassiliou", "Joannis", "", "CPT" ], [ "Pilaftsis", "Apostolos", "", "Rutherford" ] ]
The consistent description of unstable particles, renormalons, or other Schwinger--Dyson-type of solutions within the framework of perturbative gauge field theories necessitates the definition and resummation of off-shell Green's functions, which must respect several crucial physical requirements. A formalism is presen...
1606.02716
Andreas Papaefstathiou
Adrian Carmona, Florian Goertz, Andreas Papaefstathiou
Uncovering the relation of a scalar resonance to the Higgs boson
17 pages, 29 figures. Version matches published version
Phys. Rev. D 95, 095022 (2017)
10.1103/PhysRevD.95.095022
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the associated production of a scalar resonance with the standard model Higgs boson. We demonstrate via a realistic phenomenological analysis that couplings of such a resonance to the Higgs boson can be constrained in a meaningful way in future runs of the LHC, providing insights on its origin and its rel...
[ { "created": "Wed, 8 Jun 2016 20:00:01 GMT", "version": "v1" }, { "created": "Wed, 23 Aug 2017 16:06:29 GMT", "version": "v2" } ]
2017-08-24
[ [ "Carmona", "Adrian", "" ], [ "Goertz", "Florian", "" ], [ "Papaefstathiou", "Andreas", "" ] ]
We consider the associated production of a scalar resonance with the standard model Higgs boson. We demonstrate via a realistic phenomenological analysis that couplings of such a resonance to the Higgs boson can be constrained in a meaningful way in future runs of the LHC, providing insights on its origin and its relat...
1001.0400
Alejandro Gutierrez-Rodriguez
A. Gutierrez-Rodriguez, E. Torres-Lomas, A. Gonzalez-Sanchez
Emissivity of neutrinos in supernova in a left-right symmetric model
13 pages, 2 figures
Int.J.Mod.Phys.A25:2551-2560,2010
10.1142/S0217751X10048342
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the emissivity due to neutrino-pair production in $e^+e^-$ annihilation in the context of a left-right symmetric model in a way that can be used in supernova calculations. We also present some simple estimates which show that such process can act as an efficient energy-loss mechanism in the shocked super...
[ { "created": "Sun, 3 Jan 2010 19:22:23 GMT", "version": "v1" } ]
2010-05-25
[ [ "Gutierrez-Rodriguez", "A.", "" ], [ "Torres-Lomas", "E.", "" ], [ "Gonzalez-Sanchez", "A.", "" ] ]
We calculate the emissivity due to neutrino-pair production in $e^+e^-$ annihilation in the context of a left-right symmetric model in a way that can be used in supernova calculations. We also present some simple estimates which show that such process can act as an efficient energy-loss mechanism in the shocked superno...
2404.18099
Zihang Wang
Qiming Qiu, Yu Gao, Hai-jun Tian, Kechen Wang, Zihang Wang, Xiang-Ming Yang
Wide Binary Evaporation by Dark Solitons: Implications from the GAIA Catalog
15 pages, 4 figures, 3 tables
null
null
null
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
An analytic calculation is given for binary star evaporation under the tidal perturbation from randomly distributed, spatially extended dark objects. In particular, the Milky Way's wide binary star population are susceptible to such disruption from dark matter solitons of comparable and larger sizes. We identify high...
[ { "created": "Sun, 28 Apr 2024 07:24:16 GMT", "version": "v1" } ]
2024-04-30
[ [ "Qiu", "Qiming", "" ], [ "Gao", "Yu", "" ], [ "Tian", "Hai-jun", "" ], [ "Wang", "Kechen", "" ], [ "Wang", "Zihang", "" ], [ "Yang", "Xiang-Ming", "" ] ]
An analytic calculation is given for binary star evaporation under the tidal perturbation from randomly distributed, spatially extended dark objects. In particular, the Milky Way's wide binary star population are susceptible to such disruption from dark matter solitons of comparable and larger sizes. We identify high-p...
1812.10092
Siamak Sadat Gousheh
S. Rostam Zadeh, S. S. Gousheh
A Minimal System Including Weak Sphalerons for Investigating the Evolution of Matter Asymmetries and Hypermagnetic Fields
40 pages, 5 figures, 7 tables
Phys. Rev. D 99, 096009 (2019)
10.1103/PhysRevD.99.096009
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study simultaneous evolution of large scale hypermagnetic fields and the asymmetries of quarks, leptons and Higgs boson in the temperature range from 10TeV to 100GeV. Above 10TeV, we identify all of the major fast interactions and use the associated conservation laws as constraints on the initial conditions at 10T...
[ { "created": "Tue, 25 Dec 2018 11:29:40 GMT", "version": "v1" }, { "created": "Tue, 19 Mar 2019 10:30:38 GMT", "version": "v2" } ]
2019-05-15
[ [ "Zadeh", "S. Rostam", "" ], [ "Gousheh", "S. S.", "" ] ]
We study simultaneous evolution of large scale hypermagnetic fields and the asymmetries of quarks, leptons and Higgs boson in the temperature range from 10TeV to 100GeV. Above 10TeV, we identify all of the major fast interactions and use the associated conservation laws as constraints on the initial conditions at 10TeV...
2105.14896
Emidio Gabrielli
Emidio Gabrielli, Barbara Mele, Roberto Onofrio
Bounds on charged-lepton flavor violations via resonant scattering
11 pages, 3 figures, new references and results included, same as published version
Physics Letters B 822 (2021) 136656
10.1016/j.physletb.2021.136656
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore the possibility of probing flavor violations in the charged-lepton sector by means of high-luminosity lepton-photon and electron-muon collisions, by inverting initial and final states in a variety of decay channels presently used to bound such violations. In particular, we analyse the resonant lepton, $\ga...
[ { "created": "Mon, 31 May 2021 11:38:09 GMT", "version": "v1" }, { "created": "Wed, 29 Sep 2021 16:23:34 GMT", "version": "v2" } ]
2021-09-30
[ [ "Gabrielli", "Emidio", "" ], [ "Mele", "Barbara", "" ], [ "Onofrio", "Roberto", "" ] ]
We explore the possibility of probing flavor violations in the charged-lepton sector by means of high-luminosity lepton-photon and electron-muon collisions, by inverting initial and final states in a variety of decay channels presently used to bound such violations. In particular, we analyse the resonant lepton, $\gamm...
1911.08319
Jingya Zhu
Kun Wang and Jingya Zhu
The Light Higgsino-dominated NLSPs in the Semi-constrained NMSSM
Version accepted by CPC, journal information added
Chinese Physics C Vol. 44, No. 06 (2020) 061001
10.1088/1674-1137/44/6/061001
WHU-HEP-PH-TEV005
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the semi-constrained NMSSM (scNMSSM, or NMSSM with non-universal Higgs mass) under current constraints, we consider a scenario where $h_2$ is the SM-like Higgs, $\tilde{\chi}^0_1$ is singlino-dominated LSP, $\tilde{\chi}^{\pm}_1$ and $\tilde{\chi}^0_{2,3}$ are mass-degenerated, light and higgsino-dominated NLSPs (...
[ { "created": "Tue, 19 Nov 2019 14:51:52 GMT", "version": "v1" }, { "created": "Tue, 3 Mar 2020 17:50:43 GMT", "version": "v2" }, { "created": "Fri, 5 Jun 2020 15:31:27 GMT", "version": "v3" } ]
2020-08-26
[ [ "Wang", "Kun", "" ], [ "Zhu", "Jingya", "" ] ]
In the semi-constrained NMSSM (scNMSSM, or NMSSM with non-universal Higgs mass) under current constraints, we consider a scenario where $h_2$ is the SM-like Higgs, $\tilde{\chi}^0_1$ is singlino-dominated LSP, $\tilde{\chi}^{\pm}_1$ and $\tilde{\chi}^0_{2,3}$ are mass-degenerated, light and higgsino-dominated NLSPs (ne...
1704.04617
Juhi Dutta
Juhi Dutta, Partha Konar, Subhadeep Mondal, Biswarup Mukhopadhyaya, Santosh Kumar Rai
Search for a compressed supersymmetric spectrum with a light Gravitino
32 pages, 7 figures, 4 tables. Published in JHEP, minor modifications in text and few references added
JHEP09(2017)026
10.1007/JHEP09(2017)026
HRI-RECAPP-2017-005
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Presence of the light gravitino as dark matter candidate in a supersymmetric (SUSY) model opens up interesting collider signatures consisting of one or more hard photons together with multiple jets and missing transverse energy from the cascade decay. We investigate such signals at the 13 TeV LHC in presence of compr...
[ { "created": "Sat, 15 Apr 2017 10:17:06 GMT", "version": "v1" }, { "created": "Tue, 12 Sep 2017 10:10:50 GMT", "version": "v2" } ]
2017-09-13
[ [ "Dutta", "Juhi", "" ], [ "Konar", "Partha", "" ], [ "Mondal", "Subhadeep", "" ], [ "Mukhopadhyaya", "Biswarup", "" ], [ "Rai", "Santosh Kumar", "" ] ]
Presence of the light gravitino as dark matter candidate in a supersymmetric (SUSY) model opens up interesting collider signatures consisting of one or more hard photons together with multiple jets and missing transverse energy from the cascade decay. We investigate such signals at the 13 TeV LHC in presence of compres...
2306.13060
Kazem Azizi
Fatemeh Irani, Muhammad Goharipour, Hadi Hashamipour, K. Azizi
Impact of recent MINERvA measurement of the antineutrino-proton scattering cross-section on the generalized parton distributions
16 Pages, 9 Figures and 2 Tables
null
null
null
hep-ph hep-ex hep-lat
http://creativecommons.org/licenses/by/4.0/
We investigate the impact of the new measurement of the antineutrino-proton scattering cross-section from the MINERvA Collaboration on generalized parton distributions (GPDs), particularly the polarized GPDs denoted as $\widetilde{H}^q$. To achieve this, we perform some QCD analyses of the MINERvA data, in addition t...
[ { "created": "Thu, 22 Jun 2023 17:27:04 GMT", "version": "v1" }, { "created": "Fri, 6 Oct 2023 07:26:51 GMT", "version": "v2" }, { "created": "Fri, 20 Oct 2023 15:53:36 GMT", "version": "v3" } ]
2023-10-23
[ [ "Irani", "Fatemeh", "" ], [ "Goharipour", "Muhammad", "" ], [ "Hashamipour", "Hadi", "" ], [ "Azizi", "K.", "" ] ]
We investigate the impact of the new measurement of the antineutrino-proton scattering cross-section from the MINERvA Collaboration on generalized parton distributions (GPDs), particularly the polarized GPDs denoted as $\widetilde{H}^q$. To achieve this, we perform some QCD analyses of the MINERvA data, in addition to ...
hep-ph/0008296
Yoichior Suzuki
Y. Suzuki
Low Energy Solar Neutrino Detection by using Liquid Xenon
16 pages, 4 figures, Talk presented at LowNu workshop, June-15-2000, Sudbury, Canada
null
10.1142/9789812778000_0009
null
hep-ph
null
Possibility to use ultra pure liquid Xenon as a low energy solar neutrino detector by means of $\nu$+e scatterings is evaluated. A possible detector with 10 tons of fiducial volume will give $\sim$14 events for pp-neutrinos and $\sim$6 events for $^{7}$Be neutrinos with the energy threshold at 50 keV. The detector ca...
[ { "created": "Tue, 29 Aug 2000 06:11:32 GMT", "version": "v1" } ]
2017-08-23
[ [ "Suzuki", "Y.", "" ] ]
Possibility to use ultra pure liquid Xenon as a low energy solar neutrino detector by means of $\nu$+e scatterings is evaluated. A possible detector with 10 tons of fiducial volume will give $\sim$14 events for pp-neutrinos and $\sim$6 events for $^{7}$Be neutrinos with the energy threshold at 50 keV. The detector can ...
hep-ph/0605118
Anirban Kundu
Biplob Bhattacherjee and Anirban Kundu
The Excited Scalars of the Universal Extra Dimension Model
12 pages, 9 figures: minor changes from v1, version to be published
J.Phys. G32 (2006) 2123-2136
10.1088/0954-3899/32/11/007
CU-PHYSICS/06-2006
hep-ph
null
In the minimal Universal Extra Dimension (mUED) model, there are four physical scalar particles at the n=1 level, two charged and two neutral. Due to the almost degenerate nature of the spectrum, the detection of these scalars is a major challenge, perhaps the greatest experimental challenge if UED-type new physics i...
[ { "created": "Wed, 10 May 2006 19:01:26 GMT", "version": "v1" }, { "created": "Fri, 18 Aug 2006 06:50:37 GMT", "version": "v2" } ]
2009-11-11
[ [ "Bhattacherjee", "Biplob", "" ], [ "Kundu", "Anirban", "" ] ]
In the minimal Universal Extra Dimension (mUED) model, there are four physical scalar particles at the n=1 level, two charged and two neutral. Due to the almost degenerate nature of the spectrum, the detection of these scalars is a major challenge, perhaps the greatest experimental challenge if UED-type new physics is ...
2103.15313
Thomas Stuttard
Thomas Stuttard
Neutrino signals of lightcone fluctuations resulting from fluctuating space-time
13 pages, 7 figure
Phys. Rev. D 104, 056007 (2021)
10.1103/PhysRevD.104.056007
null
hep-ph gr-qc hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
One of the most common expectations of a quantum theory of gravity is that space-time is uncertain or fluctuating at microscopic scales, making it a stochastic medium for particle propagation. Particles traversing this space-time may experience fluctuations in travel times or velocities, together referred to as light...
[ { "created": "Mon, 29 Mar 2021 03:44:43 GMT", "version": "v1" }, { "created": "Mon, 17 Jan 2022 10:57:43 GMT", "version": "v2" } ]
2022-01-19
[ [ "Stuttard", "Thomas", "" ] ]
One of the most common expectations of a quantum theory of gravity is that space-time is uncertain or fluctuating at microscopic scales, making it a stochastic medium for particle propagation. Particles traversing this space-time may experience fluctuations in travel times or velocities, together referred to as lightco...
hep-ph/9410404
Wu-Ki Tung
H.L. Lai, J. Botts, J. Huston, J.G. Morfin, J.F. Owen, J.W. Qiu, W.K. Tung and H. Weerts
Global QCD Analysis and the CTEQ Parton Distributions
(Change in Latex style only: 2up style removed since many don't have it.) 35 pages, 23 figures separately submitted as uuencoded compressed ps-file; Michigan State Report # MSU-HEP/41024 and CTEQ 404
Phys.Rev. D51 (1995) 4763-4782
10.1103/PhysRevD.51.4763
null
hep-ph
null
The CTEQ program for the determination of parton distributions through a global QCD analysis of data for various hard scattering processes is fully described. A new set of distributions, CTEQ3, incorporating several new types of data is reported and compared to the two previous sets of CTEQ distributions. Comparison ...
[ { "created": "Fri, 28 Oct 1994 23:48:15 GMT", "version": "v1" }, { "created": "Sun, 30 Oct 1994 20:09:57 GMT", "version": "v2" }, { "created": "Mon, 31 Oct 1994 22:52:33 GMT", "version": "v3" } ]
2009-10-28
[ [ "Lai", "H. L.", "" ], [ "Botts", "J.", "" ], [ "Huston", "J.", "" ], [ "Morfin", "J. G.", "" ], [ "Owen", "J. F.", "" ], [ "Qiu", "J. W.", "" ], [ "Tung", "W. K.", "" ], [ "Weerts", "H.", ""...
The CTEQ program for the determination of parton distributions through a global QCD analysis of data for various hard scattering processes is fully described. A new set of distributions, CTEQ3, incorporating several new types of data is reported and compared to the two previous sets of CTEQ distributions. Comparison wi...
hep-ph/0210037
Emilio Torrente-Lujan
E. Torrente-Lujan
Particle oscillations in external chaotic fields
Expanded version of the contribution in ``Field Theory and Statistical Mechanics, Rome 10-15 June 2002''
null
null
FTUAM-02-789
hep-ph
null
We review here the development of the general formalism for the study of fermion propagation in the presence of stochastic media. This formalism allows the systematic derivation of evolution equations for averaged quantities as survival probabilities and higher order distribution moments. The formalism equally applie...
[ { "created": "Wed, 2 Oct 2002 14:53:13 GMT", "version": "v1" } ]
2007-05-23
[ [ "Torrente-Lujan", "E.", "" ] ]
We review here the development of the general formalism for the study of fermion propagation in the presence of stochastic media. This formalism allows the systematic derivation of evolution equations for averaged quantities as survival probabilities and higher order distribution moments. The formalism equally applies ...
2310.03068
Mukul Sholapurkar
Peizhi Du, Daniel Ega\~na-Ugrinovic, Rouven Essig, Mukul Sholapurkar
Low-Energy Radiative Backgrounds in CCD-Based Dark-Matter Detectors
45 pages, 19 figures, 5 tables, 73 references
null
null
null
hep-ph astro-ph.IM hep-ex physics.ins-det
http://creativecommons.org/licenses/by/4.0/
The reach of sub-GeV dark-matter detectors is at present severely affected by low-energy events from various origins. We present the theoretical methods to compute the single- and few-electron events that arise from secondary radiation emitted by high-energy particles passing through detector materials and perform si...
[ { "created": "Wed, 4 Oct 2023 18:00:01 GMT", "version": "v1" } ]
2023-10-06
[ [ "Du", "Peizhi", "" ], [ "Egaña-Ugrinovic", "Daniel", "" ], [ "Essig", "Rouven", "" ], [ "Sholapurkar", "Mukul", "" ] ]
The reach of sub-GeV dark-matter detectors is at present severely affected by low-energy events from various origins. We present the theoretical methods to compute the single- and few-electron events that arise from secondary radiation emitted by high-energy particles passing through detector materials and perform simu...
2312.11760
Sung Hak Lim
Amon Furuichi, Sung Hak Lim, Mihoko M. Nojiri
Jet Classification Using High-Level Features from Anatomy of Top Jets
36 pages, 8 figures, 12 tables, version published in JHEP. A short discussion on the analysis model and high-level features at sub-hadronic calorimeter angular resolution is added. Code for computing Minkowski functionals is available at: https://github.com/sunghak-lim/mfjet
JHEP 07 (2024) 146
10.1007/JHEP07(2024)146
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
Recent advancements in deep learning models have significantly enhanced jet classification performance by analyzing low-level features (LLFs). However, this approach often leads to less interpretable models, emphasizing the need to understand the decision-making process and to identify the high-level features (HLFs) ...
[ { "created": "Tue, 19 Dec 2023 00:15:27 GMT", "version": "v1" }, { "created": "Fri, 26 Jul 2024 22:44:46 GMT", "version": "v2" } ]
2024-07-30
[ [ "Furuichi", "Amon", "" ], [ "Lim", "Sung Hak", "" ], [ "Nojiri", "Mihoko M.", "" ] ]
Recent advancements in deep learning models have significantly enhanced jet classification performance by analyzing low-level features (LLFs). However, this approach often leads to less interpretable models, emphasizing the need to understand the decision-making process and to identify the high-level features (HLFs) cr...
2205.01437
Jongkuk Kim
Jongkuk Kim
Compatibility of muon $g-2$, $W$ mass anomaly in type-X 2HDM
8 pages, 4figures
null
10.1016/j.physletb.2022.137220
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Recently CDF II Collaboration reported that they measured W boson mass precisely. The measurement is deviated from the Standard Model (SM) Prediction at 7$\sigma$. Also, the recent FNAL measurement of the muon magnetic moment shows a $4.2\sigma$ deviation. To resolve the W boson as well as the muon $(g-2)$ anomalies,...
[ { "created": "Tue, 3 May 2022 11:54:07 GMT", "version": "v1" } ]
2022-06-08
[ [ "Kim", "Jongkuk", "" ] ]
Recently CDF II Collaboration reported that they measured W boson mass precisely. The measurement is deviated from the Standard Model (SM) Prediction at 7$\sigma$. Also, the recent FNAL measurement of the muon magnetic moment shows a $4.2\sigma$ deviation. To resolve the W boson as well as the muon $(g-2)$ anomalies, w...
hep-ph/0004175
Koichi Yoshioka
Tatsuo Kobayashi and Koichi Yoshioka
New RG-invariants of Soft Supersymmetry Breaking Parameters
9 pages
Phys.Lett.B486:223-227,2000
10.1016/S0370-2693(00)00723-1
KUNS-1658, YITP-00-18
hep-ph
null
We study new renormalization-group invariant quantities of soft supersymmetry breaking parameters other than the ratio of gaugino mass to gauge coupling squared by using the spurion method. The obtained invariants are useful to probe supersymmetry breaking and mu-term generation mechanisms at high-energy scale. We al...
[ { "created": "Tue, 18 Apr 2000 10:46:50 GMT", "version": "v1" } ]
2008-11-26
[ [ "Kobayashi", "Tatsuo", "" ], [ "Yoshioka", "Koichi", "" ] ]
We study new renormalization-group invariant quantities of soft supersymmetry breaking parameters other than the ratio of gaugino mass to gauge coupling squared by using the spurion method. The obtained invariants are useful to probe supersymmetry breaking and mu-term generation mechanisms at high-energy scale. We also...
1112.4192
Charlotte Strege
C. Strege, G. Bertone, D. G. Cerdeno, M. Fornasa, R. Ruiz de Austri, R. Trotta
Updated global fits of the cMSSM including the latest LHC SUSY and Higgs searches and XENON100 data
18 pages, 5 figures, 2 tables; matches JCAP accepted version, profile likelihood contours slightly modified from v1, main conclusions unchanged
null
10.1088/1475-7516/2012/03/030
IFT-UAM/CSIC-11-99; FTUAM-11-66
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present new global fits of the cMSSM, including LHC 1/fb integrated luminosity SUSY exclusion limits, recent LHC 5/fb constraints on the mass of the Higgs boson and XENON100 direct detection data. Our analysis fully takes into account astrophysical and hadronic uncertainties that enter the analysis when translatin...
[ { "created": "Sun, 18 Dec 2011 21:38:38 GMT", "version": "v1" }, { "created": "Wed, 22 Feb 2012 14:07:58 GMT", "version": "v2" } ]
2015-06-03
[ [ "Strege", "C.", "" ], [ "Bertone", "G.", "" ], [ "Cerdeno", "D. G.", "" ], [ "Fornasa", "M.", "" ], [ "de Austri", "R. Ruiz", "" ], [ "Trotta", "R.", "" ] ]
We present new global fits of the cMSSM, including LHC 1/fb integrated luminosity SUSY exclusion limits, recent LHC 5/fb constraints on the mass of the Higgs boson and XENON100 direct detection data. Our analysis fully takes into account astrophysical and hadronic uncertainties that enter the analysis when translating ...
hep-ph/0004209
Gabriel Lopez Castro
G. Lopez Castro, J. Pestieau and C. Smith
Binding energy corrections in positronium decays
11 pages, 1 .ps figure, submitted for publication
null
null
null
hep-ph
null
Positronium annihilation amplitudes that are computed by assuming a factorization approximation with on-shell intermediate leptons, do not exhibit good analytical behavior. We propose an ansatz which allows to include binding energy corrections and obtain the correct analytical and gauge invariance behavior of these ...
[ { "created": "Fri, 21 Apr 2000 21:54:25 GMT", "version": "v1" } ]
2007-05-23
[ [ "Castro", "G. Lopez", "" ], [ "Pestieau", "J.", "" ], [ "Smith", "C.", "" ] ]
Positronium annihilation amplitudes that are computed by assuming a factorization approximation with on-shell intermediate leptons, do not exhibit good analytical behavior. We propose an ansatz which allows to include binding energy corrections and obtain the correct analytical and gauge invariance behavior of these QE...
hep-ph/9508212
null
S. Willenbrock (U. of Illinois)
Future of Top-Quark Physics at Fermilab
Latex, 8 pages, 5 Postscript figures to be added separately. Uses sprocl.sty and epsf.sty. Presented at the International Symposium on Particle Theory and Phenomenology, Iowa State University, May 22-24, 1995
null
null
ILL-(TH)-95-31
hep-ph
null
I discuss some of the physics of the top quark which will be explored in the near and more-distant future at the Tevatron.
[ { "created": "Wed, 2 Aug 1995 04:40:40 GMT", "version": "v1" } ]
2007-05-23
[ [ "Willenbrock", "S.", "", "U. of Illinois" ] ]
I discuss some of the physics of the top quark which will be explored in the near and more-distant future at the Tevatron.
hep-ph/0210287
German Rodrigo
German Rodrigo, Henryk Czyz, Johann H. Kuhn
Precision measurement of the hadronic cross-section through the radiative return method
Talk given at 7th International Workshop on Tau Lepton Physics (TAU 02), Santa Cruz, California, 10-13 Sep 2002. TAU-2002-WE06. 10 pages, 12 figures
eConf C0209101 (2002) WE06
10.1016/S0920-5632(03)80320-1
CERN-TH/2002-273, TTP02-25
hep-ph hep-ex
null
Electron--positron annihilation into hadrons plus an energetic photon from initial-state radiation allows the hadronic cross-section to be measured over a wide range of energies at high luminosity meson factories. Weighted integrals over this cross-section are a decisive input for electroweak precision tests. A Monte...
[ { "created": "Mon, 21 Oct 2002 20:35:51 GMT", "version": "v1" } ]
2009-11-07
[ [ "Rodrigo", "German", "" ], [ "Czyz", "Henryk", "" ], [ "Kuhn", "Johann H.", "" ] ]
Electron--positron annihilation into hadrons plus an energetic photon from initial-state radiation allows the hadronic cross-section to be measured over a wide range of energies at high luminosity meson factories. Weighted integrals over this cross-section are a decisive input for electroweak precision tests. A Monte C...
2208.01441
Long Chen
Taushif Ahmed, Long Chen, Micha{\l} Czakon
A note on quark and gluon energy-momentum tensors
Additional comments on the physics implications of the results and the scheme proposed added, matched to the version accepted for publication in JHEP
J. High Energ. Phys. 2023, 77 (2023)
10.1007/JHEP01(2023)077
P3H-22-088, TTK-22-28
hep-ph hep-lat hep-th
http://creativecommons.org/licenses/by/4.0/
We discuss the constraints on quark and gluon energy-momentum tensors in QCD that follow from the requirement of Renormalisation-Group invariance of the traces of these operators. Our study covers the most general form of the latter traces, while the energy-momentum tensors themselves are only subjected to very mild ...
[ { "created": "Tue, 2 Aug 2022 13:17:40 GMT", "version": "v1" }, { "created": "Sat, 22 Apr 2023 01:49:08 GMT", "version": "v2" } ]
2023-11-08
[ [ "Ahmed", "Taushif", "" ], [ "Chen", "Long", "" ], [ "Czakon", "Michał", "" ] ]
We discuss the constraints on quark and gluon energy-momentum tensors in QCD that follow from the requirement of Renormalisation-Group invariance of the traces of these operators. Our study covers the most general form of the latter traces, while the energy-momentum tensors themselves are only subjected to very mild co...