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2109.14799
Daiki Suenaga
Daiki Suenaga, Yasufumi Araki, Kei Suzuki, and Shigehiro Yasui
Heavy-quark spin polarization induced by the Kondo effect in a magnetic field
19 pages, 12 figures
Phys. Rev. D 105, 074028 (2022)
10.1103/PhysRevD.105.074028
RIKEN-iTHEMS-Report-21
hep-ph hep-lat nucl-th
http://creativecommons.org/licenses/by/4.0/
We propose a new mechanism of the heavy-quark spin polarization (HQSP) in quark matter induced by the Kondo effect under external magnetic field. The Kondo effect is caused by a condensate between a heavy and a light quark called the Kondo condensate leading to a mixing of the heavy and light quark spins. Thus the HQ...
[ { "created": "Thu, 30 Sep 2021 01:57:12 GMT", "version": "v1" }, { "created": "Wed, 27 Apr 2022 07:33:09 GMT", "version": "v2" } ]
2022-04-28
[ [ "Suenaga", "Daiki", "" ], [ "Araki", "Yasufumi", "" ], [ "Suzuki", "Kei", "" ], [ "Yasui", "Shigehiro", "" ] ]
We propose a new mechanism of the heavy-quark spin polarization (HQSP) in quark matter induced by the Kondo effect under external magnetic field. The Kondo effect is caused by a condensate between a heavy and a light quark called the Kondo condensate leading to a mixing of the heavy and light quark spins. Thus the HQSP...
2309.01337
Zhi-Gang Wang
Zhi-Gang Wang
Three-body strong decays of the $Y(4230)$ via the light-cone QCD sum rules
13 pages, 4 figures. arXiv admin note: text overlap with arXiv:2304.14153
Int. J. Mod. Phys. A38 (2023) 2350175
10.1142/S0217751X23501750
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We tentatively assign the $Y(4230)$ as the vector tetraquark state with a relative P-wave between the scalar diquark pair, and explore the three-body strong decays $Y(4230) \to \bar{D}^{*-}D^{*0}\pi^+$, $\bar{D}^{*-}D^0\pi^+$, $J/\psi\pi^+\pi^- $ and $ J/\psi K^+K^-$ with the light-cone QCD sum rules by assuming cont...
[ { "created": "Mon, 4 Sep 2023 03:45:35 GMT", "version": "v1" }, { "created": "Wed, 22 Nov 2023 07:47:23 GMT", "version": "v2" } ]
2024-02-13
[ [ "Wang", "Zhi-Gang", "" ] ]
We tentatively assign the $Y(4230)$ as the vector tetraquark state with a relative P-wave between the scalar diquark pair, and explore the three-body strong decays $Y(4230) \to \bar{D}^{*-}D^{*0}\pi^+$, $\bar{D}^{*-}D^0\pi^+$, $J/\psi\pi^+\pi^- $ and $ J/\psi K^+K^-$ with the light-cone QCD sum rules by assuming contac...
hep-ph/9404285
Martin Savage
Martin J. Savage
$\Lambda (1405)$ Contribution to Kaon-Nucleon Scattering Lengths In Chiral Perturbation Theory
11 pages, figure not included, uses harvmac, CMU-HEP 94-11, NSF-ITP-94-33
Phys.Lett.B331:411-417,1994
10.1016/0370-2693(94)91072-3
null
hep-ph nucl-th
null
We examine the role of the $\Lambda(1405)$ in kaon-nucleon scattering lengths using chiral perturbation theory. The leading nonanalytic SU(3) corrections reduce the coupling of the $\Lambda (1405)$ to $KN$ compared to $\Sigma\pi$. S-wave $K^-p$ scattering is the only channel significantly affected by the $ \Lambda (1...
[ { "created": "Mon, 18 Apr 1994 21:04:24 GMT", "version": "v1" } ]
2011-07-19
[ [ "Savage", "Martin J.", "" ] ]
We examine the role of the $\Lambda(1405)$ in kaon-nucleon scattering lengths using chiral perturbation theory. The leading nonanalytic SU(3) corrections reduce the coupling of the $\Lambda (1405)$ to $KN$ compared to $\Sigma\pi$. S-wave $K^-p$ scattering is the only channel significantly affected by the $ \Lambda (140...
hep-ph/0012181
James Wells
James D. Wells
The role of supersymmetry phenomenology in particle physics
11 pages, LaTeX
null
null
null
hep-ph
null
Supersymmetry phenomenology is an important component of particle physics today. I provide a definition of supersymmetry phenomenology, outline the scope of its activity, and argue its legitimacy. This essay derives from a presentation given at the 2000 SLAC Summer Institute.
[ { "created": "Thu, 14 Dec 2000 23:10:30 GMT", "version": "v1" } ]
2007-05-23
[ [ "Wells", "James D.", "" ] ]
Supersymmetry phenomenology is an important component of particle physics today. I provide a definition of supersymmetry phenomenology, outline the scope of its activity, and argue its legitimacy. This essay derives from a presentation given at the 2000 SLAC Summer Institute.
hep-ph/0202187
Hans-Christian Pauli
Hans-Christian Pauli (MPI Kernphysik, Heidelberg)
On flavor mixing by an effective Light-Cone QCD-Hamiltonian
LaTeX, 8 pages, 1 figure, 6 tables, 8 references. Submitted to Nuclear Physics B (2002)
null
null
null
hep-ph
null
The $\uparrow\downarrow$-model has produced the physical masses of all flavor-asymmetric mesons like the $\pi^\pm$ or the $\rho^\pm$. Can the same model also account for the flavor-symmetric mesons like the $\pi^0$ or the $\rho^0$? -- By adjusting one parameter in a $5\times5$-matrix, the $\pi$-$\eta$ degeneracy is l...
[ { "created": "Tue, 19 Feb 2002 17:24:06 GMT", "version": "v1" } ]
2007-05-23
[ [ "Pauli", "Hans-Christian", "", "MPI Kernphysik, Heidelberg" ] ]
The $\uparrow\downarrow$-model has produced the physical masses of all flavor-asymmetric mesons like the $\pi^\pm$ or the $\rho^\pm$. Can the same model also account for the flavor-symmetric mesons like the $\pi^0$ or the $\rho^0$? -- By adjusting one parameter in a $5\times5$-matrix, the $\pi$-$\eta$ degeneracy is lif...
hep-ph/0506289
John M. Campbell
John Campbell and Francesco Tramontano
Next-to-leading order corrections to Wt production and decay
31 pages, 12 figures
Nucl.Phys.B726:109-130,2005
10.1016/j.nuclphysb.2005.08.015
CERN-PH-TH/2005-110, DSF-18/2005
hep-ph
null
We present the results of a next-to-leading order calculation of Wt production, including the decays of both the top quark and the W boson. The effects of radiation in the decay of the top quark are also included. The separation of diagrams which appear in the real corrections, into singly- and doubly-resonant contri...
[ { "created": "Tue, 28 Jun 2005 12:11:50 GMT", "version": "v1" } ]
2009-02-05
[ [ "Campbell", "John", "" ], [ "Tramontano", "Francesco", "" ] ]
We present the results of a next-to-leading order calculation of Wt production, including the decays of both the top quark and the W boson. The effects of radiation in the decay of the top quark are also included. The separation of diagrams which appear in the real corrections, into singly- and doubly-resonant contribu...
2201.04492
Yan-Qing Ma
An-Ping Chen, Xiao-Bo Jin, Yan-Qing Ma, Ce Meng
Color-octet contributions for $J/\psi$ inclusive production at B factories in soft gluon factorization
35 pages, 5 figures, published version
JHEP03(2022)202
10.1007/JHEP03(2022)202
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We have studied color-octet contributions for $J/\psi$ inclusive production at B factories, i.e., $e^+e^-\to J/\psi(^3P_J^{[8]},^1S_0^{[8]}) + X_{\mathrm{non}-c\bar c}$, using the soft gluon factorization (SGF) approach, in which the $J/\psi$ energy spectrum is expressed in a form of perturbatively calculable short-d...
[ { "created": "Wed, 12 Jan 2022 14:43:44 GMT", "version": "v1" }, { "created": "Thu, 31 Mar 2022 14:35:29 GMT", "version": "v2" } ]
2022-04-01
[ [ "Chen", "An-Ping", "" ], [ "Jin", "Xiao-Bo", "" ], [ "Ma", "Yan-Qing", "" ], [ "Meng", "Ce", "" ] ]
We have studied color-octet contributions for $J/\psi$ inclusive production at B factories, i.e., $e^+e^-\to J/\psi(^3P_J^{[8]},^1S_0^{[8]}) + X_{\mathrm{non}-c\bar c}$, using the soft gluon factorization (SGF) approach, in which the $J/\psi$ energy spectrum is expressed in a form of perturbatively calculable short-dis...
hep-ph/0211395
Gouranga C. Nayak
Gouranga C. Nayak (LANL)
Graviton and Radion Production at LHC: From pp and PbPb Collisions
8 pages latex (double column), 7 eps figures
null
null
null
hep-ph gr-qc hep-th nucl-th
null
If the Planck scale is around a TeV in theories with large extra dimension, then gravitons should be produced in high energy hadronic collisions at the LHC. In this paper we compute the direct graviton production cross section in a pp and PbPb collision at LHC at \sqrt s^{NN}= 14 TeV and 5.5 TeV respectively. The gra...
[ { "created": "Tue, 26 Nov 2002 19:55:35 GMT", "version": "v1" } ]
2007-05-23
[ [ "Nayak", "Gouranga C.", "", "LANL" ] ]
If the Planck scale is around a TeV in theories with large extra dimension, then gravitons should be produced in high energy hadronic collisions at the LHC. In this paper we compute the direct graviton production cross section in a pp and PbPb collision at LHC at \sqrt s^{NN}= 14 TeV and 5.5 TeV respectively. The gravi...
1312.3830
Qiang Li
Qiang Li, Qi-Shu Yan, Xiaoran Zhao
Higgs Pair Production: Improved Description by Matrix Element Matching
accepted version in Phys. Rev. D. arXiv admin note: substantial text overlap with arXiv:1110.1728
Phys. Rev. D 89, 033015 (2014)
10.1103/PhysRevD.89.033015
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Higgs pair production is crucial for measuring the Higgs boson self-coupling. The dominant channel at hadron colliders is gluon fusion via heavy-quark loops. We present the results of a fully exclusive simulation of gluon fusion Higgs pair production based on the matrix elements for hh + 0, 1 partons including full h...
[ { "created": "Fri, 13 Dec 2013 15:10:12 GMT", "version": "v1" }, { "created": "Tue, 4 Feb 2014 15:46:06 GMT", "version": "v2" } ]
2014-03-05
[ [ "Li", "Qiang", "" ], [ "Yan", "Qi-Shu", "" ], [ "Zhao", "Xiaoran", "" ] ]
Higgs pair production is crucial for measuring the Higgs boson self-coupling. The dominant channel at hadron colliders is gluon fusion via heavy-quark loops. We present the results of a fully exclusive simulation of gluon fusion Higgs pair production based on the matrix elements for hh + 0, 1 partons including full hea...
hep-ph/0211103
Abdelkader-Salim Safir
A. Salim Safir (DESY, Hamburg)
Theoretical studies of exclusive rare B decays in the Standard Model and Supersymmetric theories
Ph.D. Thesis, 126 pages, 41 figures (requires epsfig, psfrag)
null
null
DESY-THESIS-2002-040
hep-ph
null
We calculate the independent helicity amplitudes in the decays $B \to K^* \ell^+ \ell^-$ and $B \to \rho \ell \nu_\ell$ in the so-called Large-Energy-Effective-Theory (LEET). Taking into account the dominant $O(\alpha_s)$ and SU(3) symmetry-breaking effects, we calculate various Dalitz distributions in these decays m...
[ { "created": "Thu, 7 Nov 2002 16:43:18 GMT", "version": "v1" } ]
2007-05-23
[ [ "Safir", "A. Salim", "", "DESY, Hamburg" ] ]
We calculate the independent helicity amplitudes in the decays $B \to K^* \ell^+ \ell^-$ and $B \to \rho \ell \nu_\ell$ in the so-called Large-Energy-Effective-Theory (LEET). Taking into account the dominant $O(\alpha_s)$ and SU(3) symmetry-breaking effects, we calculate various Dalitz distributions in these decays mak...
0812.4392
Helmut Eberl Dr.
E. Christova, H. Eberl, E. Ginina, W. Majerotto
CP violation in $H^\pm t$ production at the LHC
version published in PRD
Phys.Rev.D79:096005,2009
10.1103/PhysRevD.79.096005
HEPHY-PUB 876/08
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study effects of CP violation in the associated production of a charged Higgs boson and a top quark at the LHC, $pp \to tH^\pm + X$. We calculate the CP violating asymmetry between the total cross section for $H^+$ and $H^-$ production at next-to-leading order in the MSSM, and perform a detailed numerical analysis...
[ { "created": "Tue, 23 Dec 2008 15:54:04 GMT", "version": "v1" }, { "created": "Fri, 27 Feb 2009 15:04:15 GMT", "version": "v2" }, { "created": "Tue, 23 Jun 2009 15:07:53 GMT", "version": "v3" } ]
2009-10-29
[ [ "Christova", "E.", "" ], [ "Eberl", "H.", "" ], [ "Ginina", "E.", "" ], [ "Majerotto", "W.", "" ] ]
We study effects of CP violation in the associated production of a charged Higgs boson and a top quark at the LHC, $pp \to tH^\pm + X$. We calculate the CP violating asymmetry between the total cross section for $H^+$ and $H^-$ production at next-to-leading order in the MSSM, and perform a detailed numerical analysis. ...
2010.03297
Marzia Bordone
Marzia Bordone, Oscar Cata, Thorsten Feldmann, Rusa Mandal
Constraining flavour patterns of scalar leptoquarks in the effective field theory
45 pages, 2 figures, 4 tables; v2 as published in JHEP
null
10.1007/JHEP03(2021)122
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the viability of extending the Standard Model with $S_1$ and $S_3$ scalar leptoquarks when the flavour structure is parametrized in terms of Froggatt-Nielsen charges. In contrast to a similar analysis with a vector leptoquark, we find essentially two solutions for the charges that fit the experimental ...
[ { "created": "Wed, 7 Oct 2020 09:21:55 GMT", "version": "v1" }, { "created": "Tue, 16 Mar 2021 15:03:22 GMT", "version": "v2" } ]
2021-03-17
[ [ "Bordone", "Marzia", "" ], [ "Cata", "Oscar", "" ], [ "Feldmann", "Thorsten", "" ], [ "Mandal", "Rusa", "" ] ]
We investigate the viability of extending the Standard Model with $S_1$ and $S_3$ scalar leptoquarks when the flavour structure is parametrized in terms of Froggatt-Nielsen charges. In contrast to a similar analysis with a vector leptoquark, we find essentially two solutions for the charges that fit the experimental co...
2105.03355
Benoit Loiseau
J.-P.Dedonder, R. Kami\'nski, L. Le\'sniak, B. Loiseau
Dalitz plot studies of $D^0 \to K^0_S K^+ K^-$ decays in a factorization approach
50 pages, 17 figures; v2: figure 10 is now cited in the text, typos corrected, matches the published (PRD) version
Phys. Rev. D 103, 114028 (2021)
10.1103/PhysRevD.103.114028
null
hep-ph hep-ex nucl-th
http://creativecommons.org/licenses/by/4.0/
The $\textit{BABAR}$ Collaboration data of the $D^0 \to K^0_S K^+ K^-$ process are analyzed within a quasi two-body factorization framework. In earlier studies, assuming $D^0$ transitions to two kaons and the transitions between one kaon and two kaons to proceed through the dominant intermediate resonances, we approx...
[ { "created": "Fri, 7 May 2021 16:12:32 GMT", "version": "v1" }, { "created": "Thu, 1 Jul 2021 09:03:40 GMT", "version": "v2" } ]
2021-07-02
[ [ "Dedonder", "J. -P.", "" ], [ "Kamiński", "R.", "" ], [ "Leśniak", "L.", "" ], [ "Loiseau", "B.", "" ] ]
The $\textit{BABAR}$ Collaboration data of the $D^0 \to K^0_S K^+ K^-$ process are analyzed within a quasi two-body factorization framework. In earlier studies, assuming $D^0$ transitions to two kaons and the transitions between one kaon and two kaons to proceed through the dominant intermediate resonances, we approxim...
1310.5758
Jared Evans
Jared A. Evans, Yevgeny Kats, David Shih, and Matthew J. Strassler
Toward Full LHC Coverage of Natural Supersymmetry
53 pages, 16 figures, journal version
JHEP 1407 (2014) 101
10.1007/JHEP07(2014)101
RUNHETC-2013-19
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We argue that combining just a handful of searches for new physics at Run I of the LHC is sufficient to exclude most supersymmetric extensions of the Standard Model in which the gluino is kinematically accessible and the spectrum is natural. Such models typically give rise to significant MET, top quarks and/or high o...
[ { "created": "Mon, 21 Oct 2013 23:31:05 GMT", "version": "v1" }, { "created": "Thu, 7 Aug 2014 18:32:55 GMT", "version": "v2" } ]
2015-06-17
[ [ "Evans", "Jared A.", "" ], [ "Kats", "Yevgeny", "" ], [ "Shih", "David", "" ], [ "Strassler", "Matthew J.", "" ] ]
We argue that combining just a handful of searches for new physics at Run I of the LHC is sufficient to exclude most supersymmetric extensions of the Standard Model in which the gluino is kinematically accessible and the spectrum is natural. Such models typically give rise to significant MET, top quarks and/or high obj...
1908.09864
Thomas Hambye
Thomas Hambye, Michel H.G. Tytgat, J\'er\^ome Vandecasteele, Laurent Vanderheyden
Dark matter from dark photons: a taxonomy of dark matter production
18 pages, 14 figures
Phys. Rev. D 100, 095018 (2019)
10.1103/PhysRevD.100.095018
ULB-TH/19-07
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyse how dark matter (DM) can be produced in the early universe, working in the framework of a hidden sector charged under a U(1)' gauge symmetry and interacting with the Standard Model through kinetic mixing. Depending on the masses of the dark matter particle and of the dark photon, as well as on the hidden U...
[ { "created": "Mon, 26 Aug 2019 18:12:31 GMT", "version": "v1" } ]
2019-11-27
[ [ "Hambye", "Thomas", "" ], [ "Tytgat", "Michel H. G.", "" ], [ "Vandecasteele", "Jérôme", "" ], [ "Vanderheyden", "Laurent", "" ] ]
We analyse how dark matter (DM) can be produced in the early universe, working in the framework of a hidden sector charged under a U(1)' gauge symmetry and interacting with the Standard Model through kinetic mixing. Depending on the masses of the dark matter particle and of the dark photon, as well as on the hidden U(1...
2111.14760
Lingxiao Wang
Lingxiao Wang, Shuzhe Shi, Kai Zhou
Reconstructing spectral functions via automatic differentiation
9 pages, 10 figures. Updated to the published version
Phys.Rev.D 106 (2022) 5, L051502
10.1103/PhysRevD.106.L051502
null
hep-ph cs.LG hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Reconstructing spectral functions from Euclidean Green's functions is an important inverse problem in many-body physics. However, the inversion is proved to be ill-posed in the realistic systems with noisy Green's functions. In this Letter, we propose an automatic differentiation(AD) framework as a generic tool for t...
[ { "created": "Mon, 29 Nov 2021 18:09:49 GMT", "version": "v1" }, { "created": "Sat, 1 Jan 2022 23:21:17 GMT", "version": "v2" }, { "created": "Tue, 20 Sep 2022 18:59:18 GMT", "version": "v3" } ]
2022-09-22
[ [ "Wang", "Lingxiao", "" ], [ "Shi", "Shuzhe", "" ], [ "Zhou", "Kai", "" ] ]
Reconstructing spectral functions from Euclidean Green's functions is an important inverse problem in many-body physics. However, the inversion is proved to be ill-posed in the realistic systems with noisy Green's functions. In this Letter, we propose an automatic differentiation(AD) framework as a generic tool for the...
1112.1685
Francisco Larios
F. Larios and M. A. Perez
New Physics effects on hadronic decay asymmetries of the Top quark
null
null
10.1103/PhysRevD.85.017503
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study some New Physics effects on the hadronic decays of the Top quark, like t-> b bbar c, and on a forward-backward-like CP even asymmetry A_t constructed in such a way that it is zero in the SM. We find that an anomalous right-handed contribution of the effective tbW vertex may induce an asymmetry A_t of the ord...
[ { "created": "Wed, 7 Dec 2011 20:43:37 GMT", "version": "v1" } ]
2013-05-30
[ [ "Larios", "F.", "" ], [ "Perez", "M. A.", "" ] ]
We study some New Physics effects on the hadronic decays of the Top quark, like t-> b bbar c, and on a forward-backward-like CP even asymmetry A_t constructed in such a way that it is zero in the SM. We find that an anomalous right-handed contribution of the effective tbW vertex may induce an asymmetry A_t of the order...
1910.10166
Zhong-Bo Kang
Zhong-Bo Kang, Xiaohui Liu
Power Counting the Small-$x$ Observables
5 pages, 2 figures, statements clarified and references added
null
null
null
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We emphasize the importance of applying power counting to the small-$x$ observables, which introduces novel soft contributions usually missing and allows for a unified treatment of the Balitsky-Kovchegov (BK) evolution and various Sudakov logarithms. We use $pA \to h(p_{h\perp})X$ at forward rapidity to highlight how...
[ { "created": "Tue, 22 Oct 2019 18:00:08 GMT", "version": "v1" }, { "created": "Mon, 28 Oct 2019 15:48:06 GMT", "version": "v2" } ]
2019-10-29
[ [ "Kang", "Zhong-Bo", "" ], [ "Liu", "Xiaohui", "" ] ]
We emphasize the importance of applying power counting to the small-$x$ observables, which introduces novel soft contributions usually missing and allows for a unified treatment of the Balitsky-Kovchegov (BK) evolution and various Sudakov logarithms. We use $pA \to h(p_{h\perp})X$ at forward rapidity to highlight how t...
0808.0702
Thomas Dent
Thomas Dent, Steffen Stern and Christof Wetterich
Unifying cosmological and recent time variations of fundamental couplings
Formatting changes and minor typos, equivalent to published version. 35 pages (11pt article format), 8 figures
Phys.Rev.D78:103518,2008
10.1103/PhysRevD.78.103518
HD-THEP-08-18
hep-ph astro-ph gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A number of positive and null results on the time variation of fundamental constants have been reported. It is difficult to judge whether or not these claims are mutually consistent, since the observable quantities depend on several parameters, namely the coupling strengths and masses of particles. The evolution of t...
[ { "created": "Tue, 5 Aug 2008 18:30:18 GMT", "version": "v1" }, { "created": "Tue, 25 Nov 2008 20:07:54 GMT", "version": "v2" } ]
2009-02-23
[ [ "Dent", "Thomas", "" ], [ "Stern", "Steffen", "" ], [ "Wetterich", "Christof", "" ] ]
A number of positive and null results on the time variation of fundamental constants have been reported. It is difficult to judge whether or not these claims are mutually consistent, since the observable quantities depend on several parameters, namely the coupling strengths and masses of particles. The evolution of the...
hep-ph/9509315
null
Ion I. Cot\u{a}escu (The West University of Timi\c{s}oara, Timi\c{s}oara, Romania)
$SU(n)\otimes U(1)_c$ gauge models with spontaneous symmetry breaking
41 pages, REVTeX
Int.J.Mod.Phys. A12 (1997) 1483-1510
10.1142/S0217751X97001067
UTFT-S-1
hep-ph
null
A possible generalization of the technique of the standard model to $SU(n)\otimes U(1)$ gauge models is proposed. A special Higgs mechanism and a new kind of Yukawa couplings in unitary gauge are introduced. These allow us to obtain a general method of deriving boson mass spectrum and coupling coefficients which will...
[ { "created": "Fri, 15 Sep 1995 14:19:03 GMT", "version": "v1" } ]
2009-10-28
[ [ "Cotăescu", "Ion I.", "", "The West University of Timişoara,\n Timişoara, Romania" ] ]
A possible generalization of the technique of the standard model to $SU(n)\otimes U(1)$ gauge models is proposed. A special Higgs mechanism and a new kind of Yukawa couplings in unitary gauge are introduced. These allow us to obtain a general method of deriving boson mass spectrum and coupling coefficients which will b...
1608.07339
Bowen Xiao
A. H. Mueller, Bin Wu, Bo-Wen Xiao, Feng Yuan
Medium Induced Transverse Momentum Broadening in Hard Processes
16 pages, 8 figures; v2, minor revision
Phys. Rev. D 95, 034007 (2017)
10.1103/PhysRevD.95.034007
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Using deep inelastic scattering on a large nucleus as an example, we consider the transverse momentum broadening of partons in hard processes in the presence of medium. We find that one can factorize the vacuum radiation contribution and medium related $P_T$ broadening effects into the Sudakov factor and medium depen...
[ { "created": "Thu, 25 Aug 2016 23:48:57 GMT", "version": "v1" }, { "created": "Wed, 14 Sep 2016 18:50:53 GMT", "version": "v2" } ]
2017-02-15
[ [ "Mueller", "A. H.", "" ], [ "Wu", "Bin", "" ], [ "Xiao", "Bo-Wen", "" ], [ "Yuan", "Feng", "" ] ]
Using deep inelastic scattering on a large nucleus as an example, we consider the transverse momentum broadening of partons in hard processes in the presence of medium. We find that one can factorize the vacuum radiation contribution and medium related $P_T$ broadening effects into the Sudakov factor and medium depende...
1801.10161
Yue Zhao
Aaron Pierce, Keith Riles, Yue Zhao
Searching for Dark Photon Dark Matter with Gravitational Wave Detectors
6 pages, 2 figures
Phys. Rev. Lett. 121, 061102 (2018)
10.1103/PhysRevLett.121.061102
LCTP-18-04
hep-ph astro-ph.HE gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
If dark matter stems from the background of a very light gauge boson, this gauge boson could exert forces on test masses in gravitational wave detectors, resulting in displacements with a characteristic frequency set by the gauge boson mass. We outline a novel search strategy to hunt for such dark matter, and show th...
[ { "created": "Tue, 30 Jan 2018 19:00:01 GMT", "version": "v1" } ]
2018-08-15
[ [ "Pierce", "Aaron", "" ], [ "Riles", "Keith", "" ], [ "Zhao", "Yue", "" ] ]
If dark matter stems from the background of a very light gauge boson, this gauge boson could exert forces on test masses in gravitational wave detectors, resulting in displacements with a characteristic frequency set by the gauge boson mass. We outline a novel search strategy to hunt for such dark matter, and show that...
0804.0177
Ingo Augustin
I. Augustin, H.H. Gutbrod, D. Kraemer, K. Langanke, H. Stoecker
New Physics at the International Facility for Antiproton and Ion Research (FAIR) Next to GSI
7 pages, 1 figure. Invited Talk presented at the "Fourth International Conference on Fission and Properties of Neutron-Rich nuclei", held at Sanibel Island, Florida, November 11-17, 2007
null
10.1142/9789812833433_0016
null
hep-ph nucl-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The project of the international Facility for Antiproton and Ion Research (FAIR), co-located to the GSI facility in Darmstadt, has been officially started on November 7, 2007. The current plans of the facility and the planned research program will be described. An investment of about 1 billion euro will permit new ph...
[ { "created": "Tue, 1 Apr 2008 13:48:41 GMT", "version": "v1" } ]
2017-08-23
[ [ "Augustin", "I.", "" ], [ "Gutbrod", "H. H.", "" ], [ "Kraemer", "D.", "" ], [ "Langanke", "K.", "" ], [ "Stoecker", "H.", "" ] ]
The project of the international Facility for Antiproton and Ion Research (FAIR), co-located to the GSI facility in Darmstadt, has been officially started on November 7, 2007. The current plans of the facility and the planned research program will be described. An investment of about 1 billion euro will permit new phys...
1607.08614
Dorival Goncalves
Dorival Goncalves, David Lopez-Val
Boosting to identify: pseudoscalar searches with di-leptonic tops
10 pages, 7 figures, 4 tables
Phys. Rev. D 94, 095005 (2016)
10.1103/PhysRevD.94.095005
IPPP/16/76, DCPT/16/152
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The quest for new heavy states is a critical component of the LHC physics program. In this letter, we study the search for pseudoscalar bosons produced in association with a $t\bar{t}$ pair. We consider the final state $t\bar{t} A \to t\bar{t} b\bar{b}$ with di-leptonic top pair signature, and reconstruct the boosted...
[ { "created": "Thu, 28 Jul 2016 20:00:02 GMT", "version": "v1" } ]
2016-11-09
[ [ "Goncalves", "Dorival", "" ], [ "Lopez-Val", "David", "" ] ]
The quest for new heavy states is a critical component of the LHC physics program. In this letter, we study the search for pseudoscalar bosons produced in association with a $t\bar{t}$ pair. We consider the final state $t\bar{t} A \to t\bar{t} b\bar{b}$ with di-leptonic top pair signature, and reconstruct the boosted $...
hep-ph/0008169
Ted Barnes
T.Barnes (1-4) ((1) Physics Division ORNL, (2) Department of Physics and Astronomy, University of Tennessee, (3) ITKP, University of Bonn, (4) IKP, Forschungszentrum Juelich)
MESON2000 Conference Summary
11 pages, 3 figures, uses appolb.cps and epsfig. MESON2000 Conference Summary Talk
Acta Phys.Polon. B31 (2000) 2745-2754
null
null
hep-ph nucl-th
null
This short contribution is a {\it lite} MESON2000 conference summary. As appropriate for the 600th anniversary of the Jagellonian University, it begins with a brief summary of the last 600 years of European history and its place in hadron physics. Next a ``physicist chirality'' order parameter PC is introduced. When ...
[ { "created": "Wed, 16 Aug 2000 16:02:28 GMT", "version": "v1" } ]
2007-05-23
[ [ "Barnes", "T.", "", "1-4" ] ]
This short contribution is a {\it lite} MESON2000 conference summary. As appropriate for the 600th anniversary of the Jagellonian University, it begins with a brief summary of the last 600 years of European history and its place in hadron physics. Next a ``physicist chirality'' order parameter PC is introduced. When ap...
2108.10730
Paul Frampton
Paul H. Frampton
Additional Baryons and Mesons
11 pages LaTeX
null
10.1142/S0217732321501790
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
In a particle theory model whose most readily discovered new particle is the $\sim 1$TeV bilepton resonance in same-sign leptons, currently being sought at CERN's LHC, there exist three quarks ${\cal D, S, T}$ which will be bound by QCD into baryons and mesons. We consider the decays of these additional baryons and m...
[ { "created": "Tue, 17 Aug 2021 20:05:39 GMT", "version": "v1" } ]
2021-09-06
[ [ "Frampton", "Paul H.", "" ] ]
In a particle theory model whose most readily discovered new particle is the $\sim 1$TeV bilepton resonance in same-sign leptons, currently being sought at CERN's LHC, there exist three quarks ${\cal D, S, T}$ which will be bound by QCD into baryons and mesons. We consider the decays of these additional baryons and mes...
hep-ph/0412184
Kaminski
M. Gozdz, W. A. Kaminski
Localization on Fat Branes as the Source of Neutrino Mixing
null
Int.J.Mod.Phys. E14 (2005) 471-476
10.1142/S0218301305003296
null
hep-ph
null
The localization of fermions in extra dimensions, proposed by Arkani-Hamed and Schmaltz, is discussed as the source of the phenomenon of particle mixing. We work out the example of neutrinos in detail.
[ { "created": "Tue, 14 Dec 2004 14:31:04 GMT", "version": "v1" } ]
2009-11-10
[ [ "Gozdz", "M.", "" ], [ "Kaminski", "W. A.", "" ] ]
The localization of fermions in extra dimensions, proposed by Arkani-Hamed and Schmaltz, is discussed as the source of the phenomenon of particle mixing. We work out the example of neutrinos in detail.
hep-ph/9903297
Edward Shuryak
E.V.Shuryak
New phases of QCD, the tricritical point, and RHIC as a ``nutcracker''
Talk at 15-th Winter School on Nuclear Dynamics, Parkcity Utah, Jan.99
null
null
null
hep-ph
null
Because too many interesting things are going on now, I have tried to squeeze three different subjects into one talk. The first is a brief summary of the color super-conductivity. During the last year we learned that instanton-induced forces can not only break chiral symmetry in the QCD vacuum, but also create correl...
[ { "created": "Tue, 9 Mar 1999 14:56:25 GMT", "version": "v1" } ]
2016-09-06
[ [ "Shuryak", "E. V.", "" ] ]
Because too many interesting things are going on now, I have tried to squeeze three different subjects into one talk. The first is a brief summary of the color super-conductivity. During the last year we learned that instanton-induced forces can not only break chiral symmetry in the QCD vacuum, but also create correlat...
1103.2616
Yoni BenTov
Yoni BenTov and A. Zee
Neutrino Mass Matrices with $M_{ee} = 0$
23 pages, 26 figures. v2: Added references
null
10.1103/PhysRevD.84.073012
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivated by the possibility that the amplitude for neutrinoless double beta decay may be much smaller than the planned sensitivity of future experiments, we study ansatze for the neutrino mass matrix with $M_{ee} = 0$. For the case in which CP is conserved, we consider two classes of real-valued mass matrices: "Clas...
[ { "created": "Mon, 14 Mar 2011 10:00:56 GMT", "version": "v1" }, { "created": "Wed, 23 Mar 2011 14:59:17 GMT", "version": "v2" } ]
2013-01-15
[ [ "BenTov", "Yoni", "" ], [ "Zee", "A.", "" ] ]
Motivated by the possibility that the amplitude for neutrinoless double beta decay may be much smaller than the planned sensitivity of future experiments, we study ansatze for the neutrino mass matrix with $M_{ee} = 0$. For the case in which CP is conserved, we consider two classes of real-valued mass matrices: "Class ...
0706.3717
Igor Ivanov
I. P. Ivanov, S. Pacetti
Corrections to the generalized vector dominance due to diffractive rho_3 production
12 pages, 2 figures
Eur.Phys.J.C53:559-566,2008
10.1140/epjc/s10052-007-0488-z
null
hep-ph hep-ex
null
The idea of the vector dominance is still in use in various analyses of experimental data of photon-hadron reactions. It makes sense, therefore, to recast results of microscopic calculations of such reactions in this language. Here we present the diffractive DIS $\rho_3$ production as a specific correction to the gen...
[ { "created": "Mon, 25 Jun 2007 21:46:54 GMT", "version": "v1" } ]
2008-11-26
[ [ "Ivanov", "I. P.", "" ], [ "Pacetti", "S.", "" ] ]
The idea of the vector dominance is still in use in various analyses of experimental data of photon-hadron reactions. It makes sense, therefore, to recast results of microscopic calculations of such reactions in this language. Here we present the diffractive DIS $\rho_3$ production as a specific correction to the gener...
hep-ph/9801246
Pran Nath
R. Arnowitt and Pran Nath
Limits on SUSY particle Spectra from Proton Stability and Dark Matter Constraints
13 pages including 5 figures
Phys.Lett.B437:344-350,1998
10.1016/S0370-2693(98)00931-9
null
hep-ph hep-ex
null
It is shown that the combined constraints on the amount of cold dark matter and of proton stability produce a stringent upper limit on the gluino mass $m_{\tilde g}$ (and hence on the lightest neutralino mass $m_{\chi_1^0}\simeq m_{\tilde g}/7$) for a large class of gravity mediated supergravity unified models. One f...
[ { "created": "Thu, 8 Jan 1998 20:14:14 GMT", "version": "v1" } ]
2008-11-26
[ [ "Arnowitt", "R.", "" ], [ "Nath", "Pran", "" ] ]
It is shown that the combined constraints on the amount of cold dark matter and of proton stability produce a stringent upper limit on the gluino mass $m_{\tilde g}$ (and hence on the lightest neutralino mass $m_{\chi_1^0}\simeq m_{\tilde g}/7$) for a large class of gravity mediated supergravity unified models. One fin...
hep-ph/0506167
Ismail Turan
Shaouly Bar-Shalom (1), Gad Eilam (1,2), Mariana Frank (3) and Ismail Turan (3,4) ((1)TECHNION,(2)Univ. of Wisconsin, (3)Concordia Univ., (4)William and Mary)
Width Effects on Near Threshold Decays of the Top Quark t-> cWW,cZZ and of Neutral Higgs Bosons
18 pages, 6 figures, uses axodraw.sty, minor correction in few sentences, one equatin and 3 references added. To be published in Phys.Rev.D
Phys.Rev. D72 (2005) 055018
10.1103/PhysRevD.72.055018
MADPH-05-1425, CUMQ/HEP-134, WM-05-108
hep-ph
null
The nonzero widths of heavy particles become significant when they appear in the final state of any decay occurring just around its kinematical threshold. To take into account such effects, a procedure, called the convolution method, was proposed by Altarelli, Conti and Lubicz. We expand their study which included on...
[ { "created": "Thu, 16 Jun 2005 19:41:54 GMT", "version": "v1" }, { "created": "Tue, 20 Sep 2005 23:49:47 GMT", "version": "v2" } ]
2009-11-11
[ [ "Bar-Shalom", "Shaouly", "" ], [ "Eilam", "Gad", "" ], [ "Frank", "Mariana", "" ], [ "Turan", "Ismail", "" ] ]
The nonzero widths of heavy particles become significant when they appear in the final state of any decay occurring just around its kinematical threshold. To take into account such effects, a procedure, called the convolution method, was proposed by Altarelli, Conti and Lubicz. We expand their study which included only...
1109.2554
Michio Hashimoto
Michio Hashimoto
A note on the coupling of the techni-dilaton to the weak bosons
3 pages, 2 figures; minor changes, a reference added, to appear in PRD
null
10.1103/PhysRevD.84.111901
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this note, we study the coupling of the techni-dilaton to the weak bosons. We consider two cases: (1) The dilaton directly couples to the weak bosons similarly to the SM. (2) The coupling in question is effectively induced only through the techni-fermion loops. In both cases, we find that the coupling is essential...
[ { "created": "Mon, 12 Sep 2011 18:13:32 GMT", "version": "v1" }, { "created": "Thu, 15 Sep 2011 10:33:30 GMT", "version": "v2" }, { "created": "Sun, 11 Dec 2011 10:07:50 GMT", "version": "v3" } ]
2013-05-29
[ [ "Hashimoto", "Michio", "" ] ]
In this note, we study the coupling of the techni-dilaton to the weak bosons. We consider two cases: (1) The dilaton directly couples to the weak bosons similarly to the SM. (2) The coupling in question is effectively induced only through the techni-fermion loops. In both cases, we find that the coupling is essentially...
2406.08016
Robert J. Perry
{\L}ukasz Bibrzycki, Nadine Hammoud, Vincent Mathieu, Robert J. Perry, Alex Akridge, C\'esar Fern\'andez-Ram\'irez, Gloria Monta\~na, Alessandro Pilloni, Arkaitz Rodas, Vanamali Shastry, Wyatt A. Smith, Daniel Winney, Adam P. Szczepaniak
Studying $\pi^+\pi^-$ photoproduction beyond Pomeron exchange
30 pages, 21 figures
null
null
JLAB-THY-24-4078
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Forward photoproduction of $\pi^+\pi^-$ pairs with invariant mass of the order of $m_\rho\sim 770$ MeV is traditionally understood to be produced via Pomeron exchange. Based on a detailed analysis of the CLAS photoproduction data, it is shown that the dynamics of two-pion photoproduction for $|t|\gtrsim 0.5$ GeV$^2$ ...
[ { "created": "Wed, 12 Jun 2024 09:11:49 GMT", "version": "v1" } ]
2024-06-13
[ [ "Bibrzycki", "Łukasz", "" ], [ "Hammoud", "Nadine", "" ], [ "Mathieu", "Vincent", "" ], [ "Perry", "Robert J.", "" ], [ "Akridge", "Alex", "" ], [ "Fernández-Ramírez", "César", "" ], [ "Montaña", "Gloria", ...
Forward photoproduction of $\pi^+\pi^-$ pairs with invariant mass of the order of $m_\rho\sim 770$ MeV is traditionally understood to be produced via Pomeron exchange. Based on a detailed analysis of the CLAS photoproduction data, it is shown that the dynamics of two-pion photoproduction for $|t|\gtrsim 0.5$ GeV$^2$ ca...
1008.2570
Tony Gherghetta
Tony Gherghetta
TASI Lectures on a Holographic View of Beyond the Standard Model Physics
66 pages, 15 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We provide an introduction to the physics of a warped extra dimension and the AdS/CFT correspondence. An AdS/CFT dictionary is given which leads to a 4D holographic view of the 5th dimension. With a particular emphasis on beyond the standard model physics, this provides a window into the strong dynamics associated wi...
[ { "created": "Mon, 16 Aug 2010 04:15:49 GMT", "version": "v1" } ]
2010-08-17
[ [ "Gherghetta", "Tony", "" ] ]
We provide an introduction to the physics of a warped extra dimension and the AdS/CFT correspondence. An AdS/CFT dictionary is given which leads to a 4D holographic view of the 5th dimension. With a particular emphasis on beyond the standard model physics, this provides a window into the strong dynamics associated with...
1610.02189
Richard Keith Ellis
John M. Campbell and R. Keith Ellis
Top-quark loop corrections in Z+jet and Z+2 jet production
33 pages, 9 figures
null
10.1007/JHEP01(2017)020
Fermilab-PUB-16-429-T, IPPP/16/88
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The sophistication of current predictions for $Z+$jet production at hadron colliders necessitates a re-evaluation of any approximations inherent in the theoretical calculations. In this paper we address one such issue, the inclusion of mass effects in top-quark loops. We ameliorate an existing calculation of $Z+1$~je...
[ { "created": "Fri, 7 Oct 2016 08:49:28 GMT", "version": "v1" } ]
2017-02-01
[ [ "Campbell", "John M.", "" ], [ "Ellis", "R. Keith", "" ] ]
The sophistication of current predictions for $Z+$jet production at hadron colliders necessitates a re-evaluation of any approximations inherent in the theoretical calculations. In this paper we address one such issue, the inclusion of mass effects in top-quark loops. We ameliorate an existing calculation of $Z+1$~jet ...
2007.08125
Xiao-Dong Ma
Yi Liao and Xiao-Dong Ma
An explicit construction of the dimension-9 operator basis in the standard model effective field theory
31 pages, 10 tables; Section 3 is expanded with discussion on relevant phenomenologies; Typos are corrected; The version to be appear in JHEP
JHEP11(2020)152
10.1007/JHEP11(2020)152
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate systematically dimension-9 operators in the standard model effective field theory which contains only standard model fields and respects its gauge symmetry. With the help of the Hilbert series approach to classifying operators according to their lepton and baryon numbers and their field contents, we co...
[ { "created": "Thu, 16 Jul 2020 05:55:30 GMT", "version": "v1" }, { "created": "Wed, 28 Oct 2020 12:13:47 GMT", "version": "v2" } ]
2020-11-30
[ [ "Liao", "Yi", "" ], [ "Ma", "Xiao-Dong", "" ] ]
We investigate systematically dimension-9 operators in the standard model effective field theory which contains only standard model fields and respects its gauge symmetry. With the help of the Hilbert series approach to classifying operators according to their lepton and baryon numbers and their field contents, we cons...
hep-ph/0009217
Eugene Levin
Eugene Levin (Tel Aviv U./DESY),Uri Maor (Tel Aviv U.)
A manifestation of a gluon saturation in e-A DIS
13 pages,11 figures in eps files
null
null
TAUP-2643-2000
hep-ph
null
This is a short presentation of our talks given at eRHIC Workshop at the BNL. We give here a status report of our attempts to understand how gluon saturation will manifest itself in deep inelastic scattering with nuclei. This summary reflects our current understanding and shows directions of our research rather then ...
[ { "created": "Tue, 19 Sep 2000 09:33:54 GMT", "version": "v1" } ]
2007-05-23
[ [ "Levin", "Eugene", "", "Tel Aviv U./DESY" ], [ "Maor", "Uri", "", "Tel Aviv U." ] ]
This is a short presentation of our talks given at eRHIC Workshop at the BNL. We give here a status report of our attempts to understand how gluon saturation will manifest itself in deep inelastic scattering with nuclei. This summary reflects our current understanding and shows directions of our research rather then a ...
hep-ph/0512338
Marian Jurcisin
E. Jurcisinova, M. Jurcisin
Focus points and the Lightest Higgs Boson Mass in the Minimal Supersymmetric Standard Model
latex, 7 pages, 4 figures, references are added, one e-mail is corrected
Mod.Phys.Lett.A21:1923-1929,2006
10.1142/S021773230602130X
null
hep-ph
null
We investigate focus points of the renormalization group equations of the Minimal Supersymmetric Standard Model. We show that within this model the up- and down-type Higgs mass soft supersymmetry breaking parameters have focus point behavior at the electroweak scale simultaneously when appropriate conditions are fulf...
[ { "created": "Tue, 27 Dec 2005 12:48:26 GMT", "version": "v1" }, { "created": "Fri, 20 Jan 2006 08:36:11 GMT", "version": "v2" } ]
2010-11-11
[ [ "Jurcisinova", "E.", "" ], [ "Jurcisin", "M.", "" ] ]
We investigate focus points of the renormalization group equations of the Minimal Supersymmetric Standard Model. We show that within this model the up- and down-type Higgs mass soft supersymmetry breaking parameters have focus point behavior at the electroweak scale simultaneously when appropriate conditions are fulfil...
2201.00048
Giorgio Busoni
Giorgio Busoni
Capture of Dark Matter in Neutron Stars
6 pages, 2 figures
null
10.3103/S0027134922020205
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The extreme conditions in Neutron Stars make them ideal test facilities for fundamental interactions. A Neutron Star can capture Dark Matter via scattering. As a result of the scattering, Dark Matter kinetic energy is transferred to the star. An observational consequence of this can be the warming of old neutron star...
[ { "created": "Fri, 31 Dec 2021 20:18:15 GMT", "version": "v1" }, { "created": "Tue, 15 Mar 2022 07:05:56 GMT", "version": "v2" } ]
2022-09-21
[ [ "Busoni", "Giorgio", "" ] ]
The extreme conditions in Neutron Stars make them ideal test facilities for fundamental interactions. A Neutron Star can capture Dark Matter via scattering. As a result of the scattering, Dark Matter kinetic energy is transferred to the star. An observational consequence of this can be the warming of old neutron stars ...
hep-ph/9711232
Alessandro Strumia
R. Barbieri
Unified theories
11 pages, 2 figures
null
null
talk given at LP97
hep-ph
null
The present status of Unified Theories is summarized with special emphasis on their possible experimental tests. Outline: i) Unification of couplings; ii) Where can a positive signal come from? iii) HERA anomaly and Unification; iv) Recent progress in model building; v) Flavour and Unification.
[ { "created": "Tue, 4 Nov 1997 16:14:31 GMT", "version": "v1" } ]
2007-05-23
[ [ "Barbieri", "R.", "" ] ]
The present status of Unified Theories is summarized with special emphasis on their possible experimental tests. Outline: i) Unification of couplings; ii) Where can a positive signal come from? iii) HERA anomaly and Unification; iv) Recent progress in model building; v) Flavour and Unification.
hep-ph/9409410
null
AD Martin, WJ Stirling and RG Roberts
Parton Distributions for Low Q^2
University of Durham preprint DTP/94/78 Rutherford Appleton Laboratory preprint RAL-94-104 11 pages and 9 figures available from authors
Phys.Rev. D51 (1995) 4756-4762
10.1103/PhysRevD.51.4756
null
hep-ph
null
We extend the MRS(A) set of parton distributions, which provides an up-to-date description of the structure of the proton probed by hard interactions, into the region of $Q^2$ below $5\ {\rm GeV}^2$. After physically-motivated modifications, we obtain a smooth description of the data on the structure function $F_2(x,...
[ { "created": "Mon, 26 Sep 1994 09:27:31 GMT", "version": "v1" } ]
2009-10-28
[ [ "Martin", "AD", "" ], [ "Stirling", "WJ", "" ], [ "Roberts", "RG", "" ] ]
We extend the MRS(A) set of parton distributions, which provides an up-to-date description of the structure of the proton probed by hard interactions, into the region of $Q^2$ below $5\ {\rm GeV}^2$. After physically-motivated modifications, we obtain a smooth description of the data on the structure function $F_2(x,Q^...
1712.03533
Bruce Hoeneisen
B. Hoeneisen
Constraints on neutrino masses from Baryon Acoustic Oscillation measurements
2 pages, 0 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
From 21 independent Baryon Acoustic Oscillation (BAO) measurements we obtain the following sum of masses of active Dirac or Majorana neutrinos: $\sum m_\nu = 0.711 - 0.335 \cdot \delta h + 0.050 \cdot \delta b \pm 0.063 \textrm{ eV,}$ where $\delta h \equiv (h - 0.678) / 0.009$ and $\delta b \equiv (\Omega_b h^2 - 0....
[ { "created": "Sun, 10 Dec 2017 14:17:30 GMT", "version": "v1" } ]
2017-12-12
[ [ "Hoeneisen", "B.", "" ] ]
From 21 independent Baryon Acoustic Oscillation (BAO) measurements we obtain the following sum of masses of active Dirac or Majorana neutrinos: $\sum m_\nu = 0.711 - 0.335 \cdot \delta h + 0.050 \cdot \delta b \pm 0.063 \textrm{ eV,}$ where $\delta h \equiv (h - 0.678) / 0.009$ and $\delta b \equiv (\Omega_b h^2 - 0.02...
1306.1612
Maryam Soleymaninia
M. Soleymaninia, A. N. Khorramian, S. M. Moosavi Nejad, F. Arbabifar
Determination of pion and kaon fragmentation functions including spin asymmetries data in a global analysis
18 pages, 16 figures and 8 tables
Phys. Rev. D 88, 054019 (2013)
10.1103/PhysRevD.88.054019
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present new functional form of pion and kaon fragmentation functions up to next-to-leading order obtained through a global fit to single-inclusive electron-positron annihilation data and also employ, the semi-inclusive deep inelastic scattering asymmetry data from HERMES and COMPASS to determine fragmentation func...
[ { "created": "Fri, 7 Jun 2013 05:15:36 GMT", "version": "v1" }, { "created": "Fri, 14 Feb 2014 05:31:08 GMT", "version": "v2" } ]
2019-03-08
[ [ "Soleymaninia", "M.", "" ], [ "Khorramian", "A. N.", "" ], [ "Nejad", "S. M. Moosavi", "" ], [ "Arbabifar", "F.", "" ] ]
We present new functional form of pion and kaon fragmentation functions up to next-to-leading order obtained through a global fit to single-inclusive electron-positron annihilation data and also employ, the semi-inclusive deep inelastic scattering asymmetry data from HERMES and COMPASS to determine fragmentation functi...
0801.2361
Seung Woo Ham
S. W. Ham, Taeil Hur, P. Ko, and S.K. OH
Neutral scalar Higgs bosons in the USSM at the LHC
18 pages; changed content; JPhysG
J.Phys.G35:095007,2008
10.1088/0954-3899/35/9/095007
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the possibility of discovering neutral scalar Higgs bosons in the $U(1)'$-extended supersymmetric standard model (USSM) at the CERN Large Hadron Collider (LHC), by examining their productions via the exotic quark loop in the gluon fusion process at leading order. It is possible in some parameter region that ...
[ { "created": "Tue, 15 Jan 2008 18:55:31 GMT", "version": "v1" }, { "created": "Tue, 18 Mar 2008 02:12:27 GMT", "version": "v2" }, { "created": "Fri, 18 Jul 2008 00:07:44 GMT", "version": "v3" } ]
2008-11-26
[ [ "Ham", "S. W.", "" ], [ "Hur", "Taeil", "" ], [ "Ko", "P.", "" ], [ "OH", "S. K.", "" ] ]
We study the possibility of discovering neutral scalar Higgs bosons in the $U(1)'$-extended supersymmetric standard model (USSM) at the CERN Large Hadron Collider (LHC), by examining their productions via the exotic quark loop in the gluon fusion process at leading order. It is possible in some parameter region that th...
0705.4525
Gary Goldstein
Gary R. Goldstein (1) and Kameshwar C. Wali (2) ((1) Tufts University, (2) Syracuse University)
Baryons and Mesons with Beauty
9 pages, 5 figures, plain LateX
null
null
null
hep-ph
null
Recent experimental findings of several mesons and baryons with "beauty" and "charm" as flavors remind us of the days when strangeness was discovered, and how its inclusion led to SU(3)-flavor symmetry with enormous success in the classification of the "proliferated" states into SU(3) multiplets. One of the key eleme...
[ { "created": "Thu, 31 May 2007 06:34:06 GMT", "version": "v1" } ]
2007-06-01
[ [ "Goldstein", "Gary R.", "" ], [ "Wali", "Kameshwar C.", "" ] ]
Recent experimental findings of several mesons and baryons with "beauty" and "charm" as flavors remind us of the days when strangeness was discovered, and how its inclusion led to SU(3)-flavor symmetry with enormous success in the classification of the "proliferated" states into SU(3) multiplets. One of the key element...
1103.0857
Daijiro Suematsu
Daijiro Suematsu
Thermal leptogenesis in a TeV scale model for neutrino masses
21 pages, 3 figures, v2:large improvement by the analysis of Boltzmann equations, title changed, v3: abstract rewritten, some references added, accepted version for publication
null
10.1140/epjc/s10052-012-1951-z
KANAZAWA-11-04
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is known that the radiative neutrino mass model proposed by Ma could be a consistent framework for dark matter, leptogenesis and suppressed lepton flavor violation if a neutral component of the inert doublet is identified as dark matter and the right-handed neutrinos are of O(10^7) GeV or more. In the same model w...
[ { "created": "Fri, 4 Mar 2011 10:32:40 GMT", "version": "v1" }, { "created": "Mon, 6 Feb 2012 04:39:20 GMT", "version": "v2" }, { "created": "Wed, 14 Mar 2012 04:25:51 GMT", "version": "v3" } ]
2015-05-27
[ [ "Suematsu", "Daijiro", "" ] ]
It is known that the radiative neutrino mass model proposed by Ma could be a consistent framework for dark matter, leptogenesis and suppressed lepton flavor violation if a neutral component of the inert doublet is identified as dark matter and the right-handed neutrinos are of O(10^7) GeV or more. In the same model we ...
1102.2397
Andrzej Bialas
A. Bialas
Balance functions revisited
null
Phys.Rev.C83:024914,2011
10.1103/PhysRevC.83.024914
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The idea of glue clusters, i.e. short-range correlations in the quark-gluon plasma close to freeze-out, is used to estimate the width of balance functions in momentum space. A good agreement is found with the recent measurements of STAR collaboration for central $Au-Au$ collisions.
[ { "created": "Fri, 11 Feb 2011 17:17:16 GMT", "version": "v1" } ]
2011-03-22
[ [ "Bialas", "A.", "" ] ]
The idea of glue clusters, i.e. short-range correlations in the quark-gluon plasma close to freeze-out, is used to estimate the width of balance functions in momentum space. A good agreement is found with the recent measurements of STAR collaboration for central $Au-Au$ collisions.
0710.5581
Sho Ozaki
S. Ozaki, H. Nagahiro and A. Hosaka (RCNP, Osaka University)
Magnetic interaction induced by the anomaly in kaon-photoproductions
8 pages, 3 figures
Phys.Lett.B665:178-181,2008
10.1016/j.physletb.2008.06.020
RCNP-Th07015
hep-ph
null
We study the role of magnetic interaction in the photoproduction of the kaon and hyperon. We find that the inclusion of a higher order diagram induced by the Wess-Zumio-Witten term has a significant contribution to the magnetic amplitude, which is compatible to the observed photon asymmetry in the forward angle regio...
[ { "created": "Tue, 30 Oct 2007 07:27:03 GMT", "version": "v1" } ]
2008-11-26
[ [ "Ozaki", "S.", "", "RCNP, Osaka University" ], [ "Nagahiro", "H.", "", "RCNP, Osaka University" ], [ "Hosaka", "A.", "", "RCNP, Osaka University" ] ]
We study the role of magnetic interaction in the photoproduction of the kaon and hyperon. We find that the inclusion of a higher order diagram induced by the Wess-Zumio-Witten term has a significant contribution to the magnetic amplitude, which is compatible to the observed photon asymmetry in the forward angle region....
hep-ph/9306236
S. F. King
Stephen F. King
Low Scale Technicolour at LEP
12 pages+1 figure (available by post), Latex, SHEP92/93-22
Phys.Lett. B314 (1993) 364-370
10.1016/0370-2693(93)91250-Q
null
hep-ph
null
We discuss the phenomenology of an $SU(2)_{TC}$ technicolour model with a low technicolour confinement scale ${\Lambda}_{TC} \sim 50-100 GeV$. Such a low technicolour scale may give rise to the first hints of technicolour being seen at LEPI and spectacular technicolour signals at LEPII.
[ { "created": "Mon, 7 Jun 1993 11:48:57 GMT", "version": "v1" } ]
2009-10-22
[ [ "King", "Stephen F.", "" ] ]
We discuss the phenomenology of an $SU(2)_{TC}$ technicolour model with a low technicolour confinement scale ${\Lambda}_{TC} \sim 50-100 GeV$. Such a low technicolour scale may give rise to the first hints of technicolour being seen at LEPI and spectacular technicolour signals at LEPII.
hep-ph/9803450
Juan Carlos Montero
J. C. Montero, V. Pleitez and M. C. Rodriguez
Left-right asymmetries in polarized $e-\mu$ scattering
RevTeX, 9 pages, 5 gif figures
Phys.Rev. D58 (1998) 097505
10.1103/PhysRevD.58.097505
IFT-P.019/98
hep-ph
null
We consider, in the electroweak standard model context, several left-right asymmetries in $\mu e$ elastic scattering at fixed target and collider experiments. For the former case, we show that the muon mass effects are important in a wide energy range. We also show that these asymmetries are sensitive to the electrow...
[ { "created": "Wed, 25 Mar 1998 20:19:56 GMT", "version": "v1" } ]
2016-09-06
[ [ "Montero", "J. C.", "" ], [ "Pleitez", "V.", "" ], [ "Rodriguez", "M. C.", "" ] ]
We consider, in the electroweak standard model context, several left-right asymmetries in $\mu e$ elastic scattering at fixed target and collider experiments. For the former case, we show that the muon mass effects are important in a wide energy range. We also show that these asymmetries are sensitive to the electrowea...
2211.06949
Taewook Youn
Matthew Gignac, Can Kilic, Rakhi Mahbubani, Taewook Youn
Optimizing pixel tracklet searches for shorter lifetimes
27 pages, 12 figures; v2: Minor changes. Matches published version
null
10.1007/JHEP03(2023)040
UTWI-14-2022, RBI-ThPhys-2022-41
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Pixel tracklets, disappearing tracks reconstructed with only pixel hits, have proven to be a promising technique in LHC analyses to search for dark matter candidates at the LHC that belong to a nearly-degenerate electroweak multiplet. However, a Pseudo-Dirac electroweak doublet fermion, arguably the most interesting ...
[ { "created": "Sun, 13 Nov 2022 16:46:07 GMT", "version": "v1" }, { "created": "Wed, 8 Mar 2023 19:21:54 GMT", "version": "v2" } ]
2023-03-22
[ [ "Gignac", "Matthew", "" ], [ "Kilic", "Can", "" ], [ "Mahbubani", "Rakhi", "" ], [ "Youn", "Taewook", "" ] ]
Pixel tracklets, disappearing tracks reconstructed with only pixel hits, have proven to be a promising technique in LHC analyses to search for dark matter candidates at the LHC that belong to a nearly-degenerate electroweak multiplet. However, a Pseudo-Dirac electroweak doublet fermion, arguably the most interesting su...
hep-ph/0106131
Jure Zupan
S. Fajfer, P. Singer, J. Zupan
The Search for New Physics in D^0 --> gamma gamma Decay
7 pages, 3 figures, Contributed Paper for LPO1
null
null
null
hep-ph
null
We present main results of the investigation of the rare decay mode D^0 -->gamma gamma, in which the long distance contributions are expected to be dominant. Using the Heavy Quark Chiral Lagrangian we have considered the anomaly contribution which relates to the annihilation part of the weak Lagrangian and the one - ...
[ { "created": "Wed, 13 Jun 2001 08:06:25 GMT", "version": "v1" } ]
2007-05-23
[ [ "Fajfer", "S.", "" ], [ "Singer", "P.", "" ], [ "Zupan", "J.", "" ] ]
We present main results of the investigation of the rare decay mode D^0 -->gamma gamma, in which the long distance contributions are expected to be dominant. Using the Heavy Quark Chiral Lagrangian we have considered the anomaly contribution which relates to the annihilation part of the weak Lagrangian and the one - lo...
1401.0391
Wen-Fei Wang
Wen-Fei Wang, Xin Yu, Cai-Dian L\"u, and Zhen-Jun Xiao
Semileptonic decays $B_c^+\to D^{(*)}_{(s)}(l^+\nu,l^+l^-,\nu\bar\nu)$ in the perturbative QCD approach
13 pages, 1 figure
Phys. Rev. D 90, 094018 (2014)
10.1103/PhysRevD.90.094018
null
hep-ph
http://creativecommons.org/licenses/by/3.0/
In this paper we study the semileptonic decays of $B_c^+\to D^{(*)}_{(s)}(l^+\nu_l,l^+l^-,\nu\bar\nu)$ (here $l$ stands for $e$, $\mu$, or $\tau$). After evaluating the $B_c^+ \to (D_{(s)},D^*_{(s)})$ transition form factors $F_{0,+,T}(q^2)$ and $V(q^2), A_{0,1,2}(q^2), T_{1,2,3}(q^2)$ by employing the perturbative Q...
[ { "created": "Thu, 2 Jan 2014 08:55:35 GMT", "version": "v1" }, { "created": "Sun, 13 Jul 2014 03:33:10 GMT", "version": "v2" }, { "created": "Sat, 15 Nov 2014 06:28:02 GMT", "version": "v3" } ]
2014-11-18
[ [ "Wang", "Wen-Fei", "" ], [ "Yu", "Xin", "" ], [ "Lü", "Cai-Dian", "" ], [ "Xiao", "Zhen-Jun", "" ] ]
In this paper we study the semileptonic decays of $B_c^+\to D^{(*)}_{(s)}(l^+\nu_l,l^+l^-,\nu\bar\nu)$ (here $l$ stands for $e$, $\mu$, or $\tau$). After evaluating the $B_c^+ \to (D_{(s)},D^*_{(s)})$ transition form factors $F_{0,+,T}(q^2)$ and $V(q^2), A_{0,1,2}(q^2), T_{1,2,3}(q^2)$ by employing the perturbative QCD...
2301.11814
M. Cristina Volpe
M. Cristina Volpe
Neutrinos from dense environments : Flavor mechanisms, theoretical approaches, observations, and new directions
58 pages, text and References added, minor corrections
null
null
null
hep-ph astro-ph.SR hep-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Neutrino masses and mixings produce vacuum oscillations, an established quantum mechanical phenomenon. In matter, the Mikheev-Smirnov-Wolfenstein effect, due to neutrino interactions with the background particles, triggers resonant flavor modification. In dense environments, such as core-collapse supernovae or compac...
[ { "created": "Fri, 27 Jan 2023 16:07:03 GMT", "version": "v1" }, { "created": "Tue, 23 Jan 2024 14:34:24 GMT", "version": "v2" }, { "created": "Tue, 20 Feb 2024 23:21:15 GMT", "version": "v3" } ]
2024-02-22
[ [ "Volpe", "M. Cristina", "" ] ]
Neutrino masses and mixings produce vacuum oscillations, an established quantum mechanical phenomenon. In matter, the Mikheev-Smirnov-Wolfenstein effect, due to neutrino interactions with the background particles, triggers resonant flavor modification. In dense environments, such as core-collapse supernovae or compact ...
2304.05586
Sudhakantha Girmohanta
Sudhakantha Girmohanta, Seung J. Lee, Yuichiro Nakai, and Motoo Suzuki
Multi-brane cosmology
35 pages, 6 figures. v2: matches published version
JHEP 07 (2023) 182
10.1007/JHEP07(2023)182
null
hep-ph astro-ph.CO hep-th
http://creativecommons.org/licenses/by/4.0/
5D warped extra dimension models with multiple 3-branes can naturally realize multiple hierarchical mass scales which are ubiquitous in physics beyond the Standard Model. We discuss cosmological consequences of such multi-brane models with stabilized radions. It is confirmed that for temperatures below the scale of t...
[ { "created": "Wed, 12 Apr 2023 03:13:42 GMT", "version": "v1" }, { "created": "Tue, 25 Jul 2023 03:26:26 GMT", "version": "v2" } ]
2023-07-26
[ [ "Girmohanta", "Sudhakantha", "" ], [ "Lee", "Seung J.", "" ], [ "Nakai", "Yuichiro", "" ], [ "Suzuki", "Motoo", "" ] ]
5D warped extra dimension models with multiple 3-branes can naturally realize multiple hierarchical mass scales which are ubiquitous in physics beyond the Standard Model. We discuss cosmological consequences of such multi-brane models with stabilized radions. It is confirmed that for temperatures below the scale of the...
1912.04697
Xiu-Lei Ren
X.-L. Ren, B. B. Malabarba, L.-S. Geng, K. P. Khemchandani, and A. Martinez Torres
Heavy $K^*(4307)$ meson with hidden charm
Proceeding Hadron 2019, Guilin, China, 16-21 August 2019
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We report on a robust prediction of heavy $K^*$ meson by solving the Faddeev equations with fixed-center approximation for the three-body $KD\bar{D}^*$ system. As the excited Kaon state, $K^*$ is an exotic hidden charm meson with $M-i\Gamma/2=4307\pm2-i9\pm2$ MeV and $I(J^P)=1/2(1^-)$. We further performed the evalua...
[ { "created": "Tue, 10 Dec 2019 14:13:54 GMT", "version": "v1" } ]
2019-12-11
[ [ "Ren", "X. -L.", "" ], [ "Malabarba", "B. B.", "" ], [ "Geng", "L. -S.", "" ], [ "Khemchandani", "K. P.", "" ], [ "Torres", "A. Martinez", "" ] ]
We report on a robust prediction of heavy $K^*$ meson by solving the Faddeev equations with fixed-center approximation for the three-body $KD\bar{D}^*$ system. As the excited Kaon state, $K^*$ is an exotic hidden charm meson with $M-i\Gamma/2=4307\pm2-i9\pm2$ MeV and $I(J^P)=1/2(1^-)$. We further performed the evaluati...
1007.5313
Giulia Zanderighi
Tom Melia, Kirill Melnikov, Raoul Rontsch, Giulia Zanderighi
Next-to-leading order QCD predictions for W+W+jj production at the LHC
15 pages, 5 (lovely) figures, v3 accepted for publication in JHEP, corrects tables in appendix
JHEP 1012:053,2010
10.1007/JHEP12(2010)053
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Because the LHC is a proton-proton collider, sizable production of two positively charged W-bosons in association with two jets is possible. This process leads to a distinct signature of same sign high-pt leptons, missing energy and jets. We compute the NLO QCD corrections to the QCD-mediated part of pp -> W+W+jj. Th...
[ { "created": "Thu, 29 Jul 2010 20:00:24 GMT", "version": "v1" }, { "created": "Sun, 6 Mar 2011 07:18:44 GMT", "version": "v2" }, { "created": "Thu, 26 May 2011 10:28:21 GMT", "version": "v3" } ]
2011-05-27
[ [ "Melia", "Tom", "" ], [ "Melnikov", "Kirill", "" ], [ "Rontsch", "Raoul", "" ], [ "Zanderighi", "Giulia", "" ] ]
Because the LHC is a proton-proton collider, sizable production of two positively charged W-bosons in association with two jets is possible. This process leads to a distinct signature of same sign high-pt leptons, missing energy and jets. We compute the NLO QCD corrections to the QCD-mediated part of pp -> W+W+jj. Thes...
1903.10253
Luciano Maiani prof
L. Maiani, A. D. Polosa, V. Riquer
The Hydrogen Bond of QCD
5 pages, 3 figures, comments and references added. Table 1 extended
Phys. Rev. D 100, 014002 (2019)
10.1103/PhysRevD.100.014002
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Using the Born-Oppenheimer approximation, we show that exotic resonances, X and Z, may emerge as QCD molecular objects made of colored two-quark lumps, states with heavy-light diquarks spatially separated from antidiquarks. With the same method we confirm that doubly heavy tetraquarks are stable against strong decays...
[ { "created": "Mon, 25 Mar 2019 11:48:44 GMT", "version": "v1" }, { "created": "Fri, 17 May 2019 14:08:24 GMT", "version": "v2" } ]
2019-07-10
[ [ "Maiani", "L.", "" ], [ "Polosa", "A. D.", "" ], [ "Riquer", "V.", "" ] ]
Using the Born-Oppenheimer approximation, we show that exotic resonances, X and Z, may emerge as QCD molecular objects made of colored two-quark lumps, states with heavy-light diquarks spatially separated from antidiquarks. With the same method we confirm that doubly heavy tetraquarks are stable against strong decays. ...
1602.04970
Aleksey Pivovarov
M.K. Volkov and A.A. Pivovarov
The decays $\tau \rightarrow (\eta,\eta') K^{-} \nu_{\tau}$ in the extended Nambu-Jona-Lasinio model
8 pages, 4 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The decays $\tau \rightarrow (\eta,\eta') K^{-} \nu_{\tau}$ are described in the framework of the extended Nambu-Jona-Lasinio model. Both full and differential widths of these decays are calculated. The vector and scalar channels are considered. In the vector channels, the subprocesses with intermediate $K^{*}(892)$ ...
[ { "created": "Tue, 16 Feb 2016 10:13:16 GMT", "version": "v1" }, { "created": "Wed, 15 Feb 2017 09:08:26 GMT", "version": "v2" } ]
2017-02-16
[ [ "Volkov", "M. K.", "" ], [ "Pivovarov", "A. A.", "" ] ]
The decays $\tau \rightarrow (\eta,\eta') K^{-} \nu_{\tau}$ are described in the framework of the extended Nambu-Jona-Lasinio model. Both full and differential widths of these decays are calculated. The vector and scalar channels are considered. In the vector channels, the subprocesses with intermediate $K^{*}(892)$ an...
1503.03966
Antonio Palazzo
Antonio Palazzo
Consistent analysis of the $\nu_\mu \to \nu_e$ sterile neutrinos searches of ICARUS and OPERA
5 pages, 5 figures; references updated; to appear in PRD as a Rapid Communication
null
10.1103/PhysRevD.91.091301
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The two long-baseline experiments ICARUS and OPERA have recently provided bounds on light ($\sim$ eV) sterile neutrinos exploiting the negative results of the $\nu_\mu \to \nu_e$ appearance searches. Both collaborations have performed the data analysis using an effective 2-flavor description. We show that such a simp...
[ { "created": "Fri, 13 Mar 2015 07:08:59 GMT", "version": "v1" }, { "created": "Tue, 24 Mar 2015 13:23:15 GMT", "version": "v2" }, { "created": "Wed, 6 May 2015 10:19:41 GMT", "version": "v3" } ]
2015-06-11
[ [ "Palazzo", "Antonio", "" ] ]
The two long-baseline experiments ICARUS and OPERA have recently provided bounds on light ($\sim$ eV) sterile neutrinos exploiting the negative results of the $\nu_\mu \to \nu_e$ appearance searches. Both collaborations have performed the data analysis using an effective 2-flavor description. We show that such a simpli...
1010.4187
S. Weinzierl
Sebastian Becker, Christian Reuschle and Stefan Weinzierl
Numerical NLO QCD calculations
62 pages, version to be published
JHEP 1012:013,2010
10.1007/JHEP12(2010)013
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present an algorithm for the numerical calculation of one-loop QCD amplitudes. The algorithm consists of subtraction terms, approximating the soft, collinear and ultraviolet divergences of one-loop amplitudes and a method to deform the integration contour for the loop integration into the complex space. The algori...
[ { "created": "Wed, 20 Oct 2010 13:00:31 GMT", "version": "v1" }, { "created": "Mon, 22 Nov 2010 12:37:44 GMT", "version": "v2" } ]
2010-12-09
[ [ "Becker", "Sebastian", "" ], [ "Reuschle", "Christian", "" ], [ "Weinzierl", "Stefan", "" ] ]
We present an algorithm for the numerical calculation of one-loop QCD amplitudes. The algorithm consists of subtraction terms, approximating the soft, collinear and ultraviolet divergences of one-loop amplitudes and a method to deform the integration contour for the loop integration into the complex space. The algorith...
1908.08811
Xiaoyun Chen
Xiaoyun Chen
Fully-heavy tetraquarks: $bb\bar{c}\bar{c}$ and $bc\bar{b}\bar{c}$
arXiv admin note: text overlap with arXiv:1902.00008
Phys. Rev. D 100, 094009 (2019)
10.1103/PhysRevD.100.094009
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the framework of a nonrelativistic chiral quark model, we continue to study the mass spectra of the fully-heavy $bb\bar{c}\bar{c}$ and $bc\bar{b}\bar{c}$ tetraquarks. In the present calculations, two structures, meson-meson [$\bar{Q}Q$][$\bar{Q}Q$] and diquark-antidiquark [$QQ$][$\bar{Q}\bar{Q}$] ($Q$ = $c$ or $b$...
[ { "created": "Thu, 22 Aug 2019 11:46:18 GMT", "version": "v1" }, { "created": "Wed, 16 Oct 2019 11:35:38 GMT", "version": "v2" } ]
2019-11-20
[ [ "Chen", "Xiaoyun", "" ] ]
In the framework of a nonrelativistic chiral quark model, we continue to study the mass spectra of the fully-heavy $bb\bar{c}\bar{c}$ and $bc\bar{b}\bar{c}$ tetraquarks. In the present calculations, two structures, meson-meson [$\bar{Q}Q$][$\bar{Q}Q$] and diquark-antidiquark [$QQ$][$\bar{Q}\bar{Q}$] ($Q$ = $c$ or $b$),...
1707.00272
Gennady Kozlov
G. Kozlov
CP and particle correlations under thermal influence
Talk given at Workshop of Particle Correlations and Femtoscopy (XII WPCF), 12th to 16th of June 2017, Amsterdam, The Netherlands
null
null
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the phase transition of nuclear (baryonic) matter in the model of one-dimensional random fluctuation walk. The stochastic fields (forces) influence intrinsic to Bose-Einstein correlations between two identical particles is a particular ingridient of the model. The solution in terms of the characteristic func...
[ { "created": "Sun, 2 Jul 2017 10:00:15 GMT", "version": "v1" } ]
2017-07-04
[ [ "Kozlov", "G.", "" ] ]
We study the phase transition of nuclear (baryonic) matter in the model of one-dimensional random fluctuation walk. The stochastic fields (forces) influence intrinsic to Bose-Einstein correlations between two identical particles is a particular ingridient of the model. The solution in terms of the characteristic functi...
1908.06986
Hongwan Liu
Hongwan Liu, Nadav Joseph Outmezguine, Diego Redigolo and Tomer Volansky
Reviving Millicharged Dark Matter for 21-cm Cosmology
11 pages + appendices, 7 figures
Phys. Rev. D 100, 123011 (2019)
10.1103/PhysRevD.100.123011
MIT-CTP/5126
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The existence of millicharged dark matter (mDM) can leave a measurable imprint on 21-cm cosmology through mDM-baryon scattering. However, the minimal scenario is severely constrained by existing cosmological bounds on both the fraction of dark matter that can be millicharged and the mass of mDM particles. We point ou...
[ { "created": "Mon, 19 Aug 2019 18:00:01 GMT", "version": "v1" } ]
2019-12-25
[ [ "Liu", "Hongwan", "" ], [ "Outmezguine", "Nadav Joseph", "" ], [ "Redigolo", "Diego", "" ], [ "Volansky", "Tomer", "" ] ]
The existence of millicharged dark matter (mDM) can leave a measurable imprint on 21-cm cosmology through mDM-baryon scattering. However, the minimal scenario is severely constrained by existing cosmological bounds on both the fraction of dark matter that can be millicharged and the mass of mDM particles. We point out ...
1401.1827
Maxim Perelstein
Andrey Katz and Maxim Perelstein
Higgs Couplings and Electroweak Phase Transition
27 pages, 6 figures. v2: typos fixed, some clarifications added, results and conclusions unchanged
null
10.1007/JHEP07(2014)108
null
hep-ph astro-ph.CO hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We argue that extensions of the Standard Model (SM) with a strongly first-order electroweak phase transition generically predict significant deviations of the Higgs couplings to gluons, photons, and Z bosons from their SM values. Precise experimental measurements of the Higgs couplings at the LHC and at the proposed ...
[ { "created": "Wed, 8 Jan 2014 21:04:18 GMT", "version": "v1" }, { "created": "Mon, 14 Jul 2014 19:52:34 GMT", "version": "v2" } ]
2015-06-18
[ [ "Katz", "Andrey", "" ], [ "Perelstein", "Maxim", "" ] ]
We argue that extensions of the Standard Model (SM) with a strongly first-order electroweak phase transition generically predict significant deviations of the Higgs couplings to gluons, photons, and Z bosons from their SM values. Precise experimental measurements of the Higgs couplings at the LHC and at the proposed ne...
1810.04441
Pouya Bakhti
Pouya Bakhti, Yasaman Farzan, Meshkat Rajaee
Secret interactions of neutrinos with light gauge boson at the DUNE near detector
11 pages, 6 figures
Phys. Rev. D 99, 055019 (2019)
10.1103/PhysRevD.99.055019
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Secret interactions of neutrinos with light new gauge bosons, $Z^\prime$, can lead to a rich phenomenology in supernova explosion as well as in the early Universe. This interaction can also lead to new decay modes for charged mesons, $\pi^+ (K^+) \to e^+ \nu Z'$, and subsequently to $Z'\to \nu \bar{\nu}$. After demon...
[ { "created": "Wed, 10 Oct 2018 10:02:07 GMT", "version": "v1" }, { "created": "Fri, 5 Apr 2019 11:57:03 GMT", "version": "v2" } ]
2019-04-08
[ [ "Bakhti", "Pouya", "" ], [ "Farzan", "Yasaman", "" ], [ "Rajaee", "Meshkat", "" ] ]
Secret interactions of neutrinos with light new gauge bosons, $Z^\prime$, can lead to a rich phenomenology in supernova explosion as well as in the early Universe. This interaction can also lead to new decay modes for charged mesons, $\pi^+ (K^+) \to e^+ \nu Z'$, and subsequently to $Z'\to \nu \bar{\nu}$. After demonst...
1407.0378
Edgar Perez
Edgar Perez, Guy Paic, Antonio Ortiz, Eleazar Cuautle
Study of the PYTHIA $\Delta\eta\Delta\phi$ correlation as a function of multiplicity and transverse sphericity in proton-proton collisions at 7 TeV
6 pages, 4 figures
Journal of Physics: Conf. Ser. 578 012005, 2015
10.1088/1742-6596/578/1/012005
null
hep-ph nucl-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The study and understanding of the details of proton-proton collisions is important since they are the benchmark for the comparison with heavy ion results. In the present work we have studied the $\Delta\eta\Delta\phi$ correlations as a function of the event multiplicity and transverse sphericity in pp collisions at ...
[ { "created": "Tue, 1 Jul 2014 19:48:10 GMT", "version": "v1" } ]
2015-01-29
[ [ "Perez", "Edgar", "" ], [ "Paic", "Guy", "" ], [ "Ortiz", "Antonio", "" ], [ "Cuautle", "Eleazar", "" ] ]
The study and understanding of the details of proton-proton collisions is important since they are the benchmark for the comparison with heavy ion results. In the present work we have studied the $\Delta\eta\Delta\phi$ correlations as a function of the event multiplicity and transverse sphericity in pp collisions at $\...
hep-ph/0312135
Siannah Penaranda
A. M. Curiel, M. J. Herrero, W. Hollik, F. Merz and S. Penaranda
SUSY-electroweak one-loop contributions to Flavour-Changing Higgs-Boson Decays
LaTeX, 25 pages, 12 figures. Text improved and References added. Version to appear in Phys.Rev.D
Phys.Rev. D69 (2004) 075009
10.1103/PhysRevD.69.075009
MPP-2003-134, FTUAM-03-23, IFT-UAM/CSIC-03-52
hep-ph
null
The SUSY-EW one-loop quantum contributions to flavour-changing MSSM Higgs-boson decays into $b \bar s$ and $s \bar b$ are computed and discussed. We use the full diagrammatic approach that is valid for all $\tan \beta$ values and do not rely on the mass-insertion approximation for the characteristic flavour-changing ...
[ { "created": "Wed, 10 Dec 2003 13:17:13 GMT", "version": "v1" }, { "created": "Wed, 11 Feb 2004 16:21:08 GMT", "version": "v2" } ]
2009-11-10
[ [ "Curiel", "A. M.", "" ], [ "Herrero", "M. J.", "" ], [ "Hollik", "W.", "" ], [ "Merz", "F.", "" ], [ "Penaranda", "S.", "" ] ]
The SUSY-EW one-loop quantum contributions to flavour-changing MSSM Higgs-boson decays into $b \bar s$ and $s \bar b$ are computed and discussed. We use the full diagrammatic approach that is valid for all $\tan \beta$ values and do not rely on the mass-insertion approximation for the characteristic flavour-changing pa...
hep-ph/0308296
Werner Bernreuther
Werner Bernreuther, Michael Fuecker and Yoshiaki Umeda
Semileptonic decays of polarised top quarks: V + A admixture and QCD corrections
7 pages, 2 figures, Latex
Phys.Lett. B582 (2004) 32-38
10.1016/j.physletb.2003.12.010
PITHA 03/08
hep-ph
null
The semileptonic decays of polarised top quarks are analysed for a general chirality-conserving tbW vertex. We calculate double differential distributions for the charged lepton and the neutrino to order \alpha_s in the QCD coupling. We present these QCD corrections in terms of compact parameterisations that should b...
[ { "created": "Thu, 28 Aug 2003 11:49:17 GMT", "version": "v1" } ]
2009-11-10
[ [ "Bernreuther", "Werner", "" ], [ "Fuecker", "Michael", "" ], [ "Umeda", "Yoshiaki", "" ] ]
The semileptonic decays of polarised top quarks are analysed for a general chirality-conserving tbW vertex. We calculate double differential distributions for the charged lepton and the neutrino to order \alpha_s in the QCD coupling. We present these QCD corrections in terms of compact parameterisations that should be ...
hep-ph/9206232
null
Robert H. Brandenberger (Brown), Anne-Christine Davis (DAMTP, Cambridge), Andrew M. Matheson (Brown) and Mark Trodden (Cambridge)
Superconducting Cosmc Strings and Primordial Magnetic Fields
BROWN-HET-830, 14 pages, use phyzzx
Phys.Lett. B293 (1992) 287-293
10.1016/0370-2693(92)90885-8
null
hep-ph astro-ph
null
We consider grand unified theories with superconducting cosmic strings and which admit the mechanism for generating primordial magnetic fields recently discussed by Vachaspati. We show that these models are severely constrained by cosmological arguments. Quite generically, either stable springs or vortons will form. ...
[ { "created": "Thu, 18 Jun 1992 06:49:44 GMT", "version": "v1" } ]
2009-10-22
[ [ "Brandenberger", "Robert H.", "", "Brown" ], [ "Davis", "Anne-Christine", "", "DAMTP,\n Cambridge" ], [ "Matheson", "Andrew M.", "", "Brown" ], [ "Trodden", "Mark", "", "Cambridge" ] ]
We consider grand unified theories with superconducting cosmic strings and which admit the mechanism for generating primordial magnetic fields recently discussed by Vachaspati. We show that these models are severely constrained by cosmological arguments. Quite generically, either stable springs or vortons will form. Pr...
hep-ph/0502254
Arunansu Sil
Qaisar Shafi, Arunansu Sil, Siew-Phang Ng
Hybrid Inflation, Dark Energy And Dark Matter
11 pages, no figures
Phys.Lett. B620 (2005) 105-110
10.1016/j.physletb.2005.06.024
null
hep-ph
null
It has been suggested that the dark energy density \rho_v ~ 10^{-12} eV^4 in the universe is associated with a metastable (false) vacuum, while the true vacuum has a vanishing cosmological constant. By including supergravity corrections we show how this is naturally realized in realistic supersymmetric hybrid inflati...
[ { "created": "Mon, 28 Feb 2005 20:18:44 GMT", "version": "v1" } ]
2009-11-11
[ [ "Shafi", "Qaisar", "" ], [ "Sil", "Arunansu", "" ], [ "Ng", "Siew-Phang", "" ] ]
It has been suggested that the dark energy density \rho_v ~ 10^{-12} eV^4 in the universe is associated with a metastable (false) vacuum, while the true vacuum has a vanishing cosmological constant. By including supergravity corrections we show how this is naturally realized in realistic supersymmetric hybrid inflation...
2404.13962
Zhun Lu
Xiaoyan Luan and Zhun Lu
Chiral-odd generalized parton distributions of sea quarks at $\xi=0$ in the light-cone quark model
13 pages, 8 figures
null
null
null
hep-ph
http://creativecommons.org/licenses/by-nc-sa/4.0/
We study the chiral-odd generalized parton distributions (GPDs) of the $\bar{u}$ and $\bar{d}$ quarks inside the proton at zero skewness using the overlap representation within the light cone formalism. Using the light cone wave functions (LCWFs) of the proton obtained from the baryon-meson fluctuation model in terms...
[ { "created": "Mon, 22 Apr 2024 08:08:45 GMT", "version": "v1" } ]
2024-04-23
[ [ "Luan", "Xiaoyan", "" ], [ "Lu", "Zhun", "" ] ]
We study the chiral-odd generalized parton distributions (GPDs) of the $\bar{u}$ and $\bar{d}$ quarks inside the proton at zero skewness using the overlap representation within the light cone formalism. Using the light cone wave functions (LCWFs) of the proton obtained from the baryon-meson fluctuation model in terms o...
1405.2637
Riccardo Catena
Riccardo Catena and Paolo Gondolo
Global fits of the dark matter-nucleon effective interactions
32 pages, 11 figures, replaced to match the published version
JCAP 1409 (2014) 09, 045
10.1088/1475-7516/2014/09/045
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The effective theory of isoscalar dark matter-nucleon interactions mediated by heavy spin-one or spin-zero particles depends on 10 coupling constants besides the dark matter particle mass. Here we compare this 11-dimensional effective theory to current observations in a comprehensive statistical analysis of several d...
[ { "created": "Mon, 12 May 2014 06:28:47 GMT", "version": "v1" }, { "created": "Fri, 17 Jul 2015 15:19:02 GMT", "version": "v2" } ]
2015-07-20
[ [ "Catena", "Riccardo", "" ], [ "Gondolo", "Paolo", "" ] ]
The effective theory of isoscalar dark matter-nucleon interactions mediated by heavy spin-one or spin-zero particles depends on 10 coupling constants besides the dark matter particle mass. Here we compare this 11-dimensional effective theory to current observations in a comprehensive statistical analysis of several dir...
2006.02225
Sabir Ramazanov Dr.
E. Babichev, D. Gorbunov, S. Ramazanov, L. Reverberi
Gravitational reheating and superheavy Dark Matter creation after inflation with non-minimal coupling
26 pages, 3 figures; minor changes; matches journal version
JCAP09(2020)059
10.1088/1475-7516/2020/09/059
INR-TH-2020-029
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the gravitational creation of superheavy particles $\chi$ in an inflationary scenario with a quartic potential and a non-minimal coupling between the inflaton $\varphi$ and the Ricci curvature: $\xi \varphi^2 R/2$. We show that for large constants $\xi >> 1$, there can be abundant production of particles $...
[ { "created": "Wed, 3 Jun 2020 12:37:34 GMT", "version": "v1" }, { "created": "Wed, 30 Sep 2020 22:10:30 GMT", "version": "v2" } ]
2020-10-14
[ [ "Babichev", "E.", "" ], [ "Gorbunov", "D.", "" ], [ "Ramazanov", "S.", "" ], [ "Reverberi", "L.", "" ] ]
We discuss the gravitational creation of superheavy particles $\chi$ in an inflationary scenario with a quartic potential and a non-minimal coupling between the inflaton $\varphi$ and the Ricci curvature: $\xi \varphi^2 R/2$. We show that for large constants $\xi >> 1$, there can be abundant production of particles $\c...
1002.0103
Ishikawa Hirohisa
Susumu Furuichi (Department of Physics, Rikkyo University, Toshima Tokyo 171-8501, Japan), Hirohisa Ishikawa (Department of Economy, Meikai University, Urayasu Chiba, 279-8550, Japan), Keiji Watanbe (Department of Physics, Meisei University, Hino Tokyo 191-8506, Japan)
Dispersion Relation for the Nucleon Electromagnetic Form Factors
16pages 9figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Elastic electromagnetic form factors of nucleons are investigated both for the time-like and the space-like momentums by using the unsubtracted dispersion relation with QCD constraints. It is shown that the calculated form factors reproduce the experimental data reasonably well; they agree with recent experimental da...
[ { "created": "Sun, 31 Jan 2010 01:36:48 GMT", "version": "v1" } ]
2010-02-02
[ [ "Furuichi", "Susumu", "", "Department of Physics, Rikkyo University, Toshima\n Tokyo 171-8501, Japan" ], [ "Ishikawa", "Hirohisa", "", "Department of Economy, Meikai\n University, Urayasu Chiba, 279-8550, Japan" ], [ "Watanbe", "Keiji", "", "Department of\...
Elastic electromagnetic form factors of nucleons are investigated both for the time-like and the space-like momentums by using the unsubtracted dispersion relation with QCD constraints. It is shown that the calculated form factors reproduce the experimental data reasonably well; they agree with recent experimental data...
hep-ph/9505242
D. R. T. Jones
I. Jack, D.R.T. Jones and K.L. Roberts
Universality and the sparticle spectrum
18 pages, tex, six figures in a uuencoded postscript file. Uses harvmac and epsf; Revised version interprets universality conditions as an infra--red limit for the evolution of couplings and masses. The low energy phenomenology is unaffected
Nucl.Phys. B455 (1995) 83-96
null
LTH 374
hep-ph
null
We calculate the particle spectrum of the SSM which follows from the assumption that the commonly assumed universal form of the soft supersymmetry --breaking terms is invariant under renormalisation. It is argued that this ``strong'' universality might be approached as an infra--red fixed point for the unified theory...
[ { "created": "Fri, 5 May 1995 14:54:32 GMT", "version": "v1" }, { "created": "Tue, 30 May 1995 09:45:59 GMT", "version": "v2" } ]
2008-02-03
[ [ "Jack", "I.", "" ], [ "Jones", "D. R. T.", "" ], [ "Roberts", "K. L.", "" ] ]
We calculate the particle spectrum of the SSM which follows from the assumption that the commonly assumed universal form of the soft supersymmetry --breaking terms is invariant under renormalisation. It is argued that this ``strong'' universality might be approached as an infra--red fixed point for the unified theory a...
1511.00907
Alexander V. Kuznetsov
A.V. Kuznetsov, D.A. Rumyantsev (Yaroslavl State P.G. Demidov University, Russia) and V.N. Savin (Yaroslavl Higher Military School of Air Defence, Russia)
Neutrino processes $\nu \bar\nu \to e^- e^+$ and $\nu \to \nu e^- e^+$ in a strong magnetic field
4 pages, LaTeX, 1 EPS figure, based on the talk presented by V.N. Savin at the International Conference on Particle Physics and Astrophysics, Moscow, MEPhI, October 5-10, 2015, to be submitted to J. Phys.: Conf. Series. arXiv admin note: substantial text overlap with arXiv:1408.6985
null
10.1088/1742-6596/675/3/032019
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The processes of neutrino production of electron-positron pairs, $\nu \bar\nu \to e^- e^+$ and $\nu \to \nu e^- e^+$, in a magnetic field of arbitrary strength, where electrons and positrons can be created in the states corresponding to excited Landau levels, are analysed. The results can be applied for calculating t...
[ { "created": "Tue, 3 Nov 2015 13:44:16 GMT", "version": "v1" } ]
2016-02-17
[ [ "Kuznetsov", "A. V.", "", "Yaroslavl State P.G. Demidov\n University, Russia" ], [ "Rumyantsev", "D. A.", "", "Yaroslavl State P.G. Demidov\n University, Russia" ], [ "Savin", "V. N.", "", "Yaroslavl Higher Military School of Air\n Defence, Russia" ] ]
The processes of neutrino production of electron-positron pairs, $\nu \bar\nu \to e^- e^+$ and $\nu \to \nu e^- e^+$, in a magnetic field of arbitrary strength, where electrons and positrons can be created in the states corresponding to excited Landau levels, are analysed. The results can be applied for calculating the...
1004.0884
Daniel Elbio L\'opez-Fogliani
Daniel E. Lopez-Fogliani
The seesaw mechanism in the $\mu \nu$SSM
7 pages, 1 figure. Talk given at "BUE, CTP International Conference on Neutrino Physics in the LHC Era", Luxor, Egypt, 15-19 Nov. 2009.
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The $\mu \nu$SSM proposes to use right-handed neutrino supermultiplets in order to generate the $\mu$ term and neutrino masses simultaneously. We discuss neutrino physics and the associated electroweak seesaw mechanism in this model. We show how to obtain, from the neutralino-neutrino mass matrix of the $\mu \nu$SSM,...
[ { "created": "Tue, 6 Apr 2010 16:18:17 GMT", "version": "v1" } ]
2010-04-07
[ [ "Lopez-Fogliani", "Daniel E.", "" ] ]
The $\mu \nu$SSM proposes to use right-handed neutrino supermultiplets in order to generate the $\mu$ term and neutrino masses simultaneously. We discuss neutrino physics and the associated electroweak seesaw mechanism in this model. We show how to obtain, from the neutralino-neutrino mass matrix of the $\mu \nu$SSM, t...
hep-ph/0012018
Francesco Vissani
Francesco Vissani (Gran Sasso)
Non-Oscillation Searches of Neutrino Mass in the Age of Oscillations
3 pages, 1 figure. Matches the version to appear in the Proceedings of NOW 2000 Workshop
Nucl.Phys.Proc.Suppl. 100 (2001) 273-275
10.1016/S0920-5632(01)01454-2
null
hep-ph
null
We focus on the implications of the oscillations for the shape of nuclear beta-spectrum (=direct search for nu mass). This is of interest because of the existing bound, m_(nu_e)<2.2 eV, that could improve by one order of magnitude with future experiments. We stress important connections with the results of Liquid Sci...
[ { "created": "Sat, 2 Dec 2000 12:38:25 GMT", "version": "v1" }, { "created": "Fri, 15 Dec 2000 19:01:14 GMT", "version": "v2" } ]
2009-10-31
[ [ "Vissani", "Francesco", "", "Gran Sasso" ] ]
We focus on the implications of the oscillations for the shape of nuclear beta-spectrum (=direct search for nu mass). This is of interest because of the existing bound, m_(nu_e)<2.2 eV, that could improve by one order of magnitude with future experiments. We stress important connections with the results of Liquid Scint...
2112.13011
Andreas Windisch
Andreas Windisch, Thomas Gallien, Christopher Schwarzlmueller
A machine learning pipeline for autonomous numerical analytic continuation of Dyson-Schwinger equations
Proceedings of 'A Virtual Tribute to Quark Confinement and the Hadron Spectrum', August 2021
null
10.1051/epjconf/202225809003
null
hep-ph cs.LG hep-th
http://creativecommons.org/licenses/by-nc-nd/4.0/
Dyson-Schwinger equations (DSEs) are a non-perturbative way to express n-point functions in quantum field theory. Working in Euclidean space and in Landau gauge, for example, one can study the quark propagator Dyson-Schwinger equation in the real and complex domain, given that a suitable and tractable truncation has ...
[ { "created": "Fri, 24 Dec 2021 09:56:42 GMT", "version": "v1" } ]
2022-02-16
[ [ "Windisch", "Andreas", "" ], [ "Gallien", "Thomas", "" ], [ "Schwarzlmueller", "Christopher", "" ] ]
Dyson-Schwinger equations (DSEs) are a non-perturbative way to express n-point functions in quantum field theory. Working in Euclidean space and in Landau gauge, for example, one can study the quark propagator Dyson-Schwinger equation in the real and complex domain, given that a suitable and tractable truncation has be...
hep-ph/0304249
Schierholz
M. G\"ockeler, R. Horsley, D. Pleiter, P.E.L. Rakow, A. Sch\"afer, G. Schierholz and W. Schroers
Generalized Parton Distributions from Lattice QCD
11 pages, 4 figures; final version, to be published in Phys. Rev. Lett
Phys.Rev.Lett.92:042002,2004
10.1103/PhysRevLett.92.042002
DESY 03-051, LU-ITP 2003/006, Edinburgh-2003/04, LTH-573, MIT-CTP-3365
hep-ph hep-lat
null
We perform a quenched lattice calculation of the first moment of twist-two generalized parton distribution functions of the proton, and assess the total quark (spin and orbital angular momentum) contribution to the spin of the proton.
[ { "created": "Sat, 26 Apr 2003 16:26:01 GMT", "version": "v1" }, { "created": "Mon, 29 Dec 2003 14:15:31 GMT", "version": "v2" } ]
2008-11-26
[ [ "Göckeler", "M.", "" ], [ "Horsley", "R.", "" ], [ "Pleiter", "D.", "" ], [ "Rakow", "P. E. L.", "" ], [ "Schäfer", "A.", "" ], [ "Schierholz", "G.", "" ], [ "Schroers", "W.", "" ] ]
We perform a quenched lattice calculation of the first moment of twist-two generalized parton distribution functions of the proton, and assess the total quark (spin and orbital angular momentum) contribution to the spin of the proton.
hep-ph/9910513
Stefan Hesselbach
S. Hesselbach and H. Fraas
Selectron Mass Effects in Neutralino Production
5 pages, LaTeX, 8 eps figures, uses appolb.cls which is included; talk presented at the XXIII School of Theoretical Physics, Ustron, Poland, September 15-22, 1999
Acta Phys.Polon.B30:3423-3428,1999
null
WUE-ITP-99-026
hep-ph
null
We study the possibility to measure the masses of the selectrons in neutralino production at an e^+ e^- linear collider with polarized beams. The cross sections and polarization asymmetries of neutralinos with gaugino character strongly depend on the masses of the exchanged selectrons. If the usual GUT relations of t...
[ { "created": "Wed, 27 Oct 1999 15:41:06 GMT", "version": "v1" } ]
2011-04-15
[ [ "Hesselbach", "S.", "" ], [ "Fraas", "H.", "" ] ]
We study the possibility to measure the masses of the selectrons in neutralino production at an e^+ e^- linear collider with polarized beams. The cross sections and polarization asymmetries of neutralinos with gaugino character strongly depend on the masses of the exchanged selectrons. If the usual GUT relations of the...
hep-ph/9503211
null
D. Schildknecht
A Remark on the $Z^0 \to b\bar b$ Width
8 pages uuencoded postscript including 2 figures
Phys.Lett. B355 (1995) 325-328
10.1016/0370-2693(95)00662-5
BI-TP 95/09
hep-ph
null
The $Z^0 \to b\bar b$ width, $\Gamma_b$, is analysed in conjunction with the total and hadronic $Z^0$ widths, $\Gamma_T$ and $\Gamma_h$. Assuming, tentatively, that the present 2$\sigma$ discrepancy in $\Gamma_b$ will substantiate as time goes on, for large values of $m_H$ it will be sufficient to modify the $Z^0 b \...
[ { "created": "Thu, 2 Mar 1995 13:57:00 GMT", "version": "v1" } ]
2016-09-01
[ [ "Schildknecht", "D.", "" ] ]
The $Z^0 \to b\bar b$ width, $\Gamma_b$, is analysed in conjunction with the total and hadronic $Z^0$ widths, $\Gamma_T$ and $\Gamma_h$. Assuming, tentatively, that the present 2$\sigma$ discrepancy in $\Gamma_b$ will substantiate as time goes on, for large values of $m_H$ it will be sufficient to modify the $Z^0 b \ba...
1012.5620
Zoltan Ligeti
Zoltan Ligeti
Supermodels: Early new physics at the LHC?
5 pages, 2 figures, talk given at the 35th International Conference on High Energy Physics (ICHEP 2010), Paris, France, July 22-28, 2010
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate new physics that could be discovered with very little LHC data, beyond the expected sensitivity of the Tevatron. We construct "supermodels", for which the LHC sensitivity with 10 pb-1 luminosity is already greater than that of the Tevatron with 10 fb-1. The simplest supermodels involve s-channel resona...
[ { "created": "Mon, 27 Dec 2010 15:04:47 GMT", "version": "v1" } ]
2010-12-30
[ [ "Ligeti", "Zoltan", "" ] ]
We investigate new physics that could be discovered with very little LHC data, beyond the expected sensitivity of the Tevatron. We construct "supermodels", for which the LHC sensitivity with 10 pb-1 luminosity is already greater than that of the Tevatron with 10 fb-1. The simplest supermodels involve s-channel resonanc...
hep-ph/0608097
Vadim Bednyakov
V. A. Bednyakov (JINR, Dubna), F. Simkovic (Comenius University, Bratislava)
Nuclear spin structure in dark matter search: The finite momentum transfer limit
39 pages, 12 figures, a review in revtex4
Phys.Part.Nucl. 37 (2006) S106-S128
10.1134/S1063779606070057
null
hep-ph
null
Spin-dependent elastic scattering of weakly interacting massive dark matter particles (WIMP) off nuclei is reviewed. All available, within different nuclear models, structure functions S(q) for finite momentum transfer (q>0) are presented. These functions describe the recoil energy dependence of the differential even...
[ { "created": "Wed, 9 Aug 2006 10:20:29 GMT", "version": "v1" } ]
2009-11-11
[ [ "Bednyakov", "V. A.", "", "JINR, Dubna" ], [ "Simkovic", "F.", "", "Comenius University,\n Bratislava" ] ]
Spin-dependent elastic scattering of weakly interacting massive dark matter particles (WIMP) off nuclei is reviewed. All available, within different nuclear models, structure functions S(q) for finite momentum transfer (q>0) are presented. These functions describe the recoil energy dependence of the differential event ...
hep-ph/9609310
Ulrich Nierste
Ulrich Nierste
Phenomenology of epsilon_K in the top era
Talk given at the wokshop on K physics, Orsay, France, 30 May - 4 June 1996, 10 pages, LATEX2e, uses cite,subeqn,epsf,rotate,times. Two typos corrected. PostScript file now also available via anonymous ftp at ftp://feynman.t30.physik.tu-muenchen.de/pub/preprints/tum-254-96.ps.gz
null
null
TUM-HEP-254/96
hep-ph
null
Todays key information on the shape of the unitarity triangle is obtained from the well-measured quantity epsilon_K characterizing the CP-violation in |Delta S|=2 transitions. The phenomenological analysis requires the input of four key quantities: The magnitudes of the CKM elements V_cb and V_ub, the top quark mass ...
[ { "created": "Tue, 10 Sep 1996 17:47:21 GMT", "version": "v1" }, { "created": "Mon, 16 Sep 1996 18:29:10 GMT", "version": "v2" } ]
2008-02-03
[ [ "Nierste", "Ulrich", "" ] ]
Todays key information on the shape of the unitarity triangle is obtained from the well-measured quantity epsilon_K characterizing the CP-violation in |Delta S|=2 transitions. The phenomenological analysis requires the input of four key quantities: The magnitudes of the CKM elements V_cb and V_ub, the top quark mass an...
hep-ph/9509358
null
Laurent Lellouch (CPT, Luminy)
Lattice-Constrained Unitarity Bounds for $\bar B^0 \to \pi^+ l^- \bar \nu_l$ Decays
LaTeX, 34 pages, and 6 PostScript figures. Version to appear in Nuclear Physics B. Small changes in the numerical results as well as a few other minor changes
Nucl.Phys.B479:353-391,1996
10.1016/0550-3213(96)00443-9
CPT-95/P.3236
hep-ph hep-lat
null
Lattice results, kinematical constraints and QCD dispersion relations are combined for the first time to derive model-independent bounds for QCD form factors and corresponding rates. To take into account the error bars on the lattice results we develop a general formalism which ascribes well-defined statistical prope...
[ { "created": "Fri, 22 Sep 1995 10:10:45 GMT", "version": "v1" }, { "created": "Sun, 24 Sep 1995 20:30:32 GMT", "version": "v2" }, { "created": "Thu, 28 Sep 1995 01:25:12 GMT", "version": "v3" }, { "created": "Tue, 3 Oct 1995 11:36:26 GMT", "version": "v4" }, { "cr...
2011-05-05
[ [ "Lellouch", "Laurent", "", "CPT, Luminy" ] ]
Lattice results, kinematical constraints and QCD dispersion relations are combined for the first time to derive model-independent bounds for QCD form factors and corresponding rates. To take into account the error bars on the lattice results we develop a general formalism which ascribes well-defined statistical propert...
hep-ph/0512058
Matthias Steinhauser
Y. Schroder, M. Steinhauser
Four-Loop Decoupling Relations for the Strong Coupling
11 pages
JHEP 0601 (2006) 051
10.1088/1126-6708/2006/01/051
BI-TP 2005/44, SFB/CPP-05-70, TTP05-21
hep-ph
null
We compute the matching relation for the strong coupling constant within the framework of QCD up to four-loop order. This allows a consistent five-loop running (once the $\beta$ function is available to this order) taking into account threshold effects. As a side product we obtain the effective coupling of a Higgs bo...
[ { "created": "Mon, 5 Dec 2005 10:23:04 GMT", "version": "v1" } ]
2009-11-11
[ [ "Schroder", "Y.", "" ], [ "Steinhauser", "M.", "" ] ]
We compute the matching relation for the strong coupling constant within the framework of QCD up to four-loop order. This allows a consistent five-loop running (once the $\beta$ function is available to this order) taking into account threshold effects. As a side product we obtain the effective coupling of a Higgs boso...
2303.10869
Wei-Jie Fu
Chuang Huang, Yang-yang Tan, Rui Wen, Shi Yin, Wei-jie Fu
Reconstruction of baryon number distributions
11 pages, 8 figures, 2 tables
null
null
null
hep-ph nucl-th
http://creativecommons.org/licenses/by/4.0/
The maximum entropy method (MEM) and the Gaussian process (GP) regression, which are both well-suited for the treatment of inverse problems, are used to reconstruct net-baryon number distributions based on a finite number of cumulants of the distribution. Baryon number distributions across the chiral phase transition...
[ { "created": "Mon, 20 Mar 2023 05:08:25 GMT", "version": "v1" } ]
2023-03-21
[ [ "Huang", "Chuang", "" ], [ "Tan", "Yang-yang", "" ], [ "Wen", "Rui", "" ], [ "Yin", "Shi", "" ], [ "Fu", "Wei-jie", "" ] ]
The maximum entropy method (MEM) and the Gaussian process (GP) regression, which are both well-suited for the treatment of inverse problems, are used to reconstruct net-baryon number distributions based on a finite number of cumulants of the distribution. Baryon number distributions across the chiral phase transition a...
hep-ph/9602323
Patricia Ball
P. Ball, V.M. Braun
The $\rho$ Meson Light-Cone Distribution Amplitudes of Leading Twist Revisited
21 pages, latex2e, requires a4wide.sty and epsf.sty, 6 PS figures included
Phys. Rev. D 54, 2182 (1996)
10.1103/PhysRevD.54.2182
CERN-TH/96-12
hep-ph
null
We give a complete re-analysis of the leading twist quark-antiquark light-cone distribution amplitudes of longitudinal and transverse $\rho$ mesons. We derive Wandzura-Wilczek type relations between different distributions and update the coefficients in their conformal expansion using QCD sum rules including next-to-...
[ { "created": "Thu, 15 Feb 1996 23:31:37 GMT", "version": "v1" } ]
2016-08-24
[ [ "Ball", "P.", "" ], [ "Braun", "V. M.", "" ] ]
We give a complete re-analysis of the leading twist quark-antiquark light-cone distribution amplitudes of longitudinal and transverse $\rho$ mesons. We derive Wandzura-Wilczek type relations between different distributions and update the coefficients in their conformal expansion using QCD sum rules including next-to-le...
hep-ph/0607234
J. P. Ma
J.P. Ma and Q. Wang
Transverse-Momentum Dependent Factorization for gamma^* pi^0 to gamma
Published version in Phys.Rev.D75:014014,2007
Phys.Rev.D75:014014,2007
10.1103/PhysRevD.75.014014
null
hep-ph
null
With a consistent definition of transverse-momentum dependent (TMD) light-cone wave function, we show that the amplitude for the process $\gamma^* \pi^0 \to\gamma$ can be factorized when the virtuality of the initial photon is large. In contrast to the collinear factorization in which the amplitude is factorized as a...
[ { "created": "Fri, 21 Jul 2006 02:33:19 GMT", "version": "v1" }, { "created": "Wed, 18 Oct 2006 01:20:23 GMT", "version": "v2" }, { "created": "Tue, 6 Feb 2007 02:40:32 GMT", "version": "v3" } ]
2008-11-26
[ [ "Ma", "J. P.", "" ], [ "Wang", "Q.", "" ] ]
With a consistent definition of transverse-momentum dependent (TMD) light-cone wave function, we show that the amplitude for the process $\gamma^* \pi^0 \to\gamma$ can be factorized when the virtuality of the initial photon is large. In contrast to the collinear factorization in which the amplitude is factorized as a c...
hep-ph/0307348
Akira Niegawa
A. Niegawa
Self-energy-part resummed quark and gluon propagators in a spin-polarized quark matter and generalized Boltzmann equations
57 pages
Phys.Rev. D68 (2003) 116007
10.1103/PhysRevD.68.116007
OCU-PHYS 202
hep-ph
null
We construct perturbative frameworks for studying nonequilibrium spin-polarized quark matter. We employ the closed-time-path formalism and use the gradient approximation in the derivative expansion. After constructing self-energy-part resummed quark and gluon propagators, we formulate two kind of mutually equivalent ...
[ { "created": "Tue, 29 Jul 2003 09:39:08 GMT", "version": "v1" }, { "created": "Mon, 1 Dec 2003 06:27:29 GMT", "version": "v2" }, { "created": "Thu, 25 Nov 2004 07:31:59 GMT", "version": "v3" } ]
2009-11-10
[ [ "Niegawa", "A.", "" ] ]
We construct perturbative frameworks for studying nonequilibrium spin-polarized quark matter. We employ the closed-time-path formalism and use the gradient approximation in the derivative expansion. After constructing self-energy-part resummed quark and gluon propagators, we formulate two kind of mutually equivalent pe...
2209.10777
Xu-Dong Huang
Xu-Dong Huang, Xing-Gang Wu, Xu-Chang Zheng, Jiang Yan, Zhi-Fei Wu and Hong-Hao Ma
Precise determination of the top-quark on-shell mass $M_t$ via its scale-invariant perturbative relation to the top-quark $\overline{\rm MS}$ mass ${\overline m}_t({\overline m}_t)$
15 pages, 2 figures, to be published in Chinese Physics C
Chin. Phys. C 48, 053113 (2024)
10.1088/1674-1137/ad2dbf
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It has been shown that the principle of maximum conformality (PMC) provides a systematic way to solve conventional renormalization scheme and scale ambiguities. The scale-fixed predictions for physical observables using the PMC are independent of the choice of renormalization scheme -- a key requirement of renormaliz...
[ { "created": "Thu, 22 Sep 2022 04:39:59 GMT", "version": "v1" }, { "created": "Sun, 25 Feb 2024 11:02:05 GMT", "version": "v2" } ]
2024-04-11
[ [ "Huang", "Xu-Dong", "" ], [ "Wu", "Xing-Gang", "" ], [ "Zheng", "Xu-Chang", "" ], [ "Yan", "Jiang", "" ], [ "Wu", "Zhi-Fei", "" ], [ "Ma", "Hong-Hao", "" ] ]
It has been shown that the principle of maximum conformality (PMC) provides a systematic way to solve conventional renormalization scheme and scale ambiguities. The scale-fixed predictions for physical observables using the PMC are independent of the choice of renormalization scheme -- a key requirement of renormalizat...
0903.2266
Stephan Narison
Stephan Narison, (CNRS-IN2P3 & Univ-Montpellier)
1^{-+} light exotic mesons in QCD
Misprints corrected. Version to appear in Phys. Lett. B 8 pages, 1 table, 7 figures (available with a better resolution)
Phys.Lett.B675:319-325,2009
10.1016/j.physletb.2009.04.012
null
hep-ph hep-ex hep-lat nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We systematically re-examine the extraction of the masses and couplings of the 1^{-+} hybrid, four-quark and molecule mesons from QCD spectral sum rules (QSSR). To NLO for the perturbative and power corrections, the hybrid mass is M_H=1.81(6) GeV and M_H < 2.2(2) GeV from the positivity of the spectral function. In t...
[ { "created": "Thu, 12 Mar 2009 20:23:22 GMT", "version": "v1" }, { "created": "Tue, 14 Apr 2009 17:32:12 GMT", "version": "v2" } ]
2014-11-18
[ [ "Narison", "Stephan", "" ] ]
We systematically re-examine the extraction of the masses and couplings of the 1^{-+} hybrid, four-quark and molecule mesons from QCD spectral sum rules (QSSR). To NLO for the perturbative and power corrections, the hybrid mass is M_H=1.81(6) GeV and M_H < 2.2(2) GeV from the positivity of the spectral function. In the...
2011.05378
Thomas Edwards
Thomas D. P. Edwards, Bradley J. Kavanagh, Luca Visinelli, Christoph Weniger
Transient Radio Signatures from Neutron Star Encounters with QCD Axion Miniclusters
11 pages, 5 figures. Code is available online at https://github.com/bradkav/axion-miniclusters/ (archived at https://doi.org/10.5281/zenodo.4006128 ). Joint submission with "Stellar Disruption of Axion Miniclusters in the Milky Way" in astro-ph (arXiv:2011.05377). Updated to match published version
Phys. Rev. Lett. 127, 131103 (2021)
10.1103/PhysRevLett.127.131103
null
hep-ph astro-ph.CO astro-ph.GA
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The QCD axion is expected to form dense structures known as axion miniclusters if the Peccei-Quinn symmetry is broken after inflation. Miniclusters that have survived until today will interact with neutron stars (NSs) in the Milky Way to produce transient radio signals from axion-photon conversion in the NS magnetosp...
[ { "created": "Tue, 10 Nov 2020 20:17:35 GMT", "version": "v1" }, { "created": "Wed, 16 Dec 2020 17:55:51 GMT", "version": "v2" }, { "created": "Fri, 22 Oct 2021 11:21:05 GMT", "version": "v3" } ]
2021-10-25
[ [ "Edwards", "Thomas D. P.", "" ], [ "Kavanagh", "Bradley J.", "" ], [ "Visinelli", "Luca", "" ], [ "Weniger", "Christoph", "" ] ]
The QCD axion is expected to form dense structures known as axion miniclusters if the Peccei-Quinn symmetry is broken after inflation. Miniclusters that have survived until today will interact with neutron stars (NSs) in the Milky Way to produce transient radio signals from axion-photon conversion in the NS magnetosphe...
2108.02540
Abigail Keats MPhys
Fedor Bezrukov and Abigail Keats
Light inflaton model in a metastable Universe
22 pages, 2 figures Version accepted in PRD, improved plots
null
10.1103/PhysRevD.104.075020
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We minimally extend the SM with a Z$_2$ symmetric potential containing a single scalar field, serving as our inflaton with a quartic self-coupling. In the model we have symmetry breaking in both sectors, and with the addition of an inflaton-Higgs portal, the Universe is able to efficiently reheat via 2-2 inflaton-Hig...
[ { "created": "Thu, 5 Aug 2021 11:52:04 GMT", "version": "v1" }, { "created": "Thu, 30 Sep 2021 15:44:54 GMT", "version": "v2" } ]
2021-10-27
[ [ "Bezrukov", "Fedor", "" ], [ "Keats", "Abigail", "" ] ]
We minimally extend the SM with a Z$_2$ symmetric potential containing a single scalar field, serving as our inflaton with a quartic self-coupling. In the model we have symmetry breaking in both sectors, and with the addition of an inflaton-Higgs portal, the Universe is able to efficiently reheat via 2-2 inflaton-Higgs...
0802.4364
Stephane Peigne
Stephane Peigne, Andre Peshier
Collisional energy loss of a fast heavy quark in a quark-gluon plasma
6 pages
Phys.Rev.D77:114017,2008
10.1103/PhysRevD.77.114017
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the average collisional energy loss dE/dx of a heavy quark crossing a quark-gluon plasma, in the limit of high quark energy E >> M^2/T, where M is the quark mass and T >> M is the plasma temperature. In the fixed coupling approximation, at leading order dE/dx \propto \alpha_s^2, with a coefficient which is...
[ { "created": "Fri, 29 Feb 2008 11:23:09 GMT", "version": "v1" } ]
2008-11-26
[ [ "Peigne", "Stephane", "" ], [ "Peshier", "Andre", "" ] ]
We discuss the average collisional energy loss dE/dx of a heavy quark crossing a quark-gluon plasma, in the limit of high quark energy E >> M^2/T, where M is the quark mass and T >> M is the plasma temperature. In the fixed coupling approximation, at leading order dE/dx \propto \alpha_s^2, with a coefficient which is l...
2003.07626
Wei Cheng
Hai-Bing Fu, Wei Cheng, Long Zeng, Dan-Dan Hu and Tao Zhong
Branching fractions and polarizations of $D\to V(\omega,\rho, K^*) \ell \nu_\ell$ within QCD LCSR
15 pages, 5 figures, 7 tables; minor changes; revised version to appear in Physical Review Research
Phys. Rev. Research 2, 043129 (2020)
10.1103/PhysRevResearch.2.043129
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, we make a detailed study about the $D\to V$ helicity form factors (HFFs) within the framework of QCD light-cone sum rule (LCSR) up to twist-4 accuracy. After extrapolating the LCSR predictions of HFFs to the whole physical $q^2$-region, we get the longitudinal, transverse and total $|V_{cq}|$-independe...
[ { "created": "Tue, 17 Mar 2020 10:34:32 GMT", "version": "v1" }, { "created": "Wed, 25 Mar 2020 02:24:16 GMT", "version": "v2" }, { "created": "Sun, 4 Oct 2020 13:11:29 GMT", "version": "v3" } ]
2020-10-28
[ [ "Fu", "Hai-Bing", "" ], [ "Cheng", "Wei", "" ], [ "Zeng", "Long", "" ], [ "Hu", "Dan-Dan", "" ], [ "Zhong", "Tao", "" ] ]
In this paper, we make a detailed study about the $D\to V$ helicity form factors (HFFs) within the framework of QCD light-cone sum rule (LCSR) up to twist-4 accuracy. After extrapolating the LCSR predictions of HFFs to the whole physical $q^2$-region, we get the longitudinal, transverse and total $|V_{cq}|$-independent...
hep-ph/0411360
Toru Goto
Toru Goto (YITP, Kyoto U)
Neutralino polarization effect in the squark cascade decay at LHC
4 pages. Talk given at the 12th International Conference on Suypersymmetry and Unification of the Fundamental Interactions (SUSY04), June 17-23, 2004, in Epochal Tsukuba, Tsukuba, Japan
null
null
null
hep-ph
null
We study the effect of the neutralino polarization in a squark cascade decay $\tilde{q} \to q \tilde{\chi}^0_2 \to q l^\pm \tilde{l}^\mp \to q l^\pm \tilde{l}^\mp \to q l^\pm l^\mp \tilde{\chi}^0_1$. Charge asymmetry in the lepton-jet invariant mass distribution appears depending on the chirality structure of the sfe...
[ { "created": "Sun, 28 Nov 2004 09:20:56 GMT", "version": "v1" } ]
2007-05-23
[ [ "Goto", "Toru", "", "YITP, Kyoto U" ] ]
We study the effect of the neutralino polarization in a squark cascade decay $\tilde{q} \to q \tilde{\chi}^0_2 \to q l^\pm \tilde{l}^\mp \to q l^\pm \tilde{l}^\mp \to q l^\pm l^\mp \tilde{\chi}^0_1$. Charge asymmetry in the lepton-jet invariant mass distribution appears depending on the chirality structure of the sferm...