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hep-ph/0111075
Ulrich Heinz
Ulrich W. Heinz and Peter F. Kolb
Early thermalization at RHIC
12 pages, including 6 figures. Invited talk at the International Conference on "Statistical QCD", Bielefeld, August 26-30, 2001, to appear in the proceedings (F. Karsch and H. Satz, eds.) in Nucl. Phys. A
Nucl.Phys.A702:269-280,2002
10.1016/S0375-9474(02)00714-5
null
hep-ph
null
It is shown that recent RHIC data on hadron spectra and elliptic flow can be excellently reproduced within a hydrodynamic description of the collision dynamics, and that this provides strong evidence for rapid thermalization while the system is still in the quark-gluon plasma phase. But even though the hydrodynamic a...
[ { "created": "Wed, 7 Nov 2001 14:36:39 GMT", "version": "v1" } ]
2008-11-26
[ [ "Heinz", "Ulrich W.", "" ], [ "Kolb", "Peter F.", "" ] ]
It is shown that recent RHIC data on hadron spectra and elliptic flow can be excellently reproduced within a hydrodynamic description of the collision dynamics, and that this provides strong evidence for rapid thermalization while the system is still in the quark-gluon plasma phase. But even though the hydrodynamic app...
hep-ph/9712468
Esteban Roulet
Esteban Roulet, Laura Covi and Francesco Vissani
On the CP asymmetries in Majorana neutrino decays
null
Phys.Lett. B424 (1998) 101-105
10.1016/S0370-2693(98)00135-X
null
hep-ph
null
We study the CP asymmetries in lepton number violating two body scattering processes and show explicitly how they vanish, in agreement with unitarity constraints. We relate these cross section asymmetries to the CP decay rate asymmetries of the intermediate massive neutrinos and show how the inclusion of the Universe...
[ { "created": "Sat, 20 Dec 1997 15:20:29 GMT", "version": "v1" } ]
2009-10-30
[ [ "Roulet", "Esteban", "" ], [ "Covi", "Laura", "" ], [ "Vissani", "Francesco", "" ] ]
We study the CP asymmetries in lepton number violating two body scattering processes and show explicitly how they vanish, in agreement with unitarity constraints. We relate these cross section asymmetries to the CP decay rate asymmetries of the intermediate massive neutrinos and show how the inclusion of the Universe e...
hep-ph/9809587
Serguey Petcov
S. T. Petcov
New Enhancement Mechanism of the Transitions in the Earth of the Solar and Atmospheric Neutrinos Crossing the Earth Core
6 pages, two eps-files, one espcrc2.sty file; the text includes 2 figures. Talk given at the ``Neutrino'98'' International Conference on Neutrino Physics and Astrophysics, June 3 - 9, 1998, Takayama, Japan (to be published in the Proceedings of the Conference)
Nucl.Phys.Proc.Suppl. 77 (1999) 93-97
10.1016/S0920-5632(99)00403-X
SISSA 103/98/EP, September 1998
hep-ph astro-ph
null
It is shown that the $\nu_2 \to \nu_{e}$ and $\nu_{\mu} \to \nu_{e}$ ($\nu_e \to \nu_{\mu (\tau)}$) transitions respectively of the solar and atmospheric neutrinos in the Earth in the case of $\nu_e - \nu_{\mu (\tau)}$ mixing in vacuum, are strongly enhanced by a new type of resonance when the neutrinos cross the Ear...
[ { "created": "Wed, 30 Sep 1998 09:42:06 GMT", "version": "v1" } ]
2009-10-31
[ [ "Petcov", "S. T.", "" ] ]
It is shown that the $\nu_2 \to \nu_{e}$ and $\nu_{\mu} \to \nu_{e}$ ($\nu_e \to \nu_{\mu (\tau)}$) transitions respectively of the solar and atmospheric neutrinos in the Earth in the case of $\nu_e - \nu_{\mu (\tau)}$ mixing in vacuum, are strongly enhanced by a new type of resonance when the neutrinos cross the Earth...
2302.01354
Andrzej Buras
Andrzej J. Buras
$Z^\prime$-Tandem Mechanism for the Suppression of New Physics in Quark Mixing with Implications for K, D and B Decays
10 pages, no figures. V2: the use of the new mixing matrix for $Z^\prime$ interactions allows a much more transparent description of this tandem and provides new insights into this framework
null
null
null
hep-ph hep-ex hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
$Z^\prime$ models belong to the ones that can most easily explain the anomalies in $b\to s \mu^+\mu^-$ transitions. However, such an explanation by a single $Z^\prime$ gauge boson, as done in the literature, is severly constrained by the $B^0_s-\bar B_s^0$ mixing. Also the recent finding, hat the mass differences $\D...
[ { "created": "Thu, 2 Feb 2023 19:00:03 GMT", "version": "v1" }, { "created": "Mon, 20 Feb 2023 12:37:33 GMT", "version": "v2" } ]
2023-02-21
[ [ "Buras", "Andrzej J.", "" ] ]
$Z^\prime$ models belong to the ones that can most easily explain the anomalies in $b\to s \mu^+\mu^-$ transitions. However, such an explanation by a single $Z^\prime$ gauge boson, as done in the literature, is severly constrained by the $B^0_s-\bar B_s^0$ mixing. Also the recent finding, hat the mass differences $\Del...
hep-ph/9405333
Maria Krawczyk
I. Dymnikova and M. Krawczyk
Equation of State for Particles Arising at the Universe at Grand Unification Energies
8 pages, tex, IFT/9/1994
null
null
null
hep-ph gr-qc
null
First postinflationary stage of the Universe evolution is considered in more detail. It is shown that heavy particles with mass $M_{H}\sim M_{GUT}$ arising at the Universe at phase transitions at Grand Unification Energies behave like ideal quantum degenerate Bose gas. The equation of state for both scalar and gauge ...
[ { "created": "Thu, 19 May 1994 19:37:49 GMT", "version": "v1" } ]
2007-05-23
[ [ "Dymnikova", "I.", "" ], [ "Krawczyk", "M.", "" ] ]
First postinflationary stage of the Universe evolution is considered in more detail. It is shown that heavy particles with mass $M_{H}\sim M_{GUT}$ arising at the Universe at phase transitions at Grand Unification Energies behave like ideal quantum degenerate Bose gas. The equation of state for both scalar and gauge bo...
1203.1672
Zhi-zhong Xing
Zhi-zhong Xing
Implications of the Daya Bay observation of \theta_{13} on the leptonic flavor mixing structure and CP violation
RevTeX 25 pages, 1 figure, minor changes, version for publication
null
10.1088/1674-1137/36/4/L01
null
hep-ph astro-ph.HE hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Daya Bay Collaboration has recently reported its first \bar{\nu}_e \to \bar{\nu}_e oscillation result which points to \theta_{13} \simeq 8.8^\circ \pm 0.8^\circ (best-fit \pm 1\sigma range) or \theta_{13} \neq 0^\circ at the 5.2\sigma level. The fact that this smallest neutrino mixing angle is not strongly suppre...
[ { "created": "Thu, 8 Mar 2012 01:04:17 GMT", "version": "v1" }, { "created": "Mon, 12 Mar 2012 00:55:57 GMT", "version": "v2" } ]
2015-06-04
[ [ "Xing", "Zhi-zhong", "" ] ]
The Daya Bay Collaboration has recently reported its first \bar{\nu}_e \to \bar{\nu}_e oscillation result which points to \theta_{13} \simeq 8.8^\circ \pm 0.8^\circ (best-fit \pm 1\sigma range) or \theta_{13} \neq 0^\circ at the 5.2\sigma level. The fact that this smallest neutrino mixing angle is not strongly suppress...
1609.02899
Gauhar Abbas
Gauhar Abbas
Low scale left-right-right-left symmetry
version published in Phys. Rev. D
Phys. Rev. D 95, 015029 (2017)
10.1103/PhysRevD.95.015029
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose an effective left-right-right-left model with a parity breaking scale around a few TeV. One of the main achievements of the model is that the mirror fermions as well as the mirror gauge sector simultaneously could be at TeV scale. It is shown that the most dangerous quadratic divergence of the SM Higgs bos...
[ { "created": "Fri, 9 Sep 2016 19:26:02 GMT", "version": "v1" }, { "created": "Thu, 12 Jan 2017 17:31:12 GMT", "version": "v2" }, { "created": "Mon, 30 Jan 2017 15:56:48 GMT", "version": "v3" } ]
2017-02-08
[ [ "Abbas", "Gauhar", "" ] ]
We propose an effective left-right-right-left model with a parity breaking scale around a few TeV. One of the main achievements of the model is that the mirror fermions as well as the mirror gauge sector simultaneously could be at TeV scale. It is shown that the most dangerous quadratic divergence of the SM Higgs boson...
hep-ph/0506179
Stanislaw Mrowczynski
Stanislaw Mrowczynski
Thermalization vs. Isotropization & Azimuthal Fluctuations
12 pages, presented at `Correlations and Fluctuations in Relativistic Nuclear Collisions', MIT, April 05, minor corrections
J.Phys.Conf.Ser. 27 (2005) 204-216
10.1088/1742-6596/27/1/022
null
hep-ph nucl-ex nucl-th
null
Hydrodynamic description requires a local thermodynamic equilibrium of the system under study but an approximate hydrodynamic behaviour is already manifested when a momentum distribution of liquid components is not of equilibrium form but merely isotropic. While the process of equilibration is relatively slow, the pa...
[ { "created": "Fri, 17 Jun 2005 15:20:49 GMT", "version": "v1" }, { "created": "Wed, 29 Jun 2005 12:25:30 GMT", "version": "v2" } ]
2009-11-11
[ [ "Mrowczynski", "Stanislaw", "" ] ]
Hydrodynamic description requires a local thermodynamic equilibrium of the system under study but an approximate hydrodynamic behaviour is already manifested when a momentum distribution of liquid components is not of equilibrium form but merely isotropic. While the process of equilibration is relatively slow, the part...
1012.1134
Taekoon Lee
Jin Young Kim and Taekoon Lee
Light bending in a Coulombic field
4 pages; references and comments added
Mod. Phys. Lett. A, Vol. 26, No. 20 (2011) pp. 1481-1485
10.1142/S0217732311035924
null
hep-ph physics.class-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The nonlinear Euler-Heisenberg interaction bends light toward an electric charge. The bending angle and trajectory of light in a Coulombic field are computed in geometric optics.
[ { "created": "Mon, 6 Dec 2010 11:20:07 GMT", "version": "v1" }, { "created": "Fri, 7 Jan 2011 02:46:30 GMT", "version": "v2" } ]
2015-05-20
[ [ "Kim", "Jin Young", "" ], [ "Lee", "Taekoon", "" ] ]
The nonlinear Euler-Heisenberg interaction bends light toward an electric charge. The bending angle and trajectory of light in a Coulombic field are computed in geometric optics.
1408.2456
Juan Antonio Aguilar-Saavedra
J. A. Aguilar-Saavedra, F. R. Joaquim
A closer look at the possible CMS signal of a new gauge boson
ReVTeX 5 pages
Phys. Rev. D 90, 115010 (2014)
10.1103/PhysRevD.90.115010
CERN-PH-TH-2014-148, CFTP/14-017
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The CMS collaboration has recently reported a 2.8$\sigma$ excess of $eejj$ events with an invariant mass around 2 TeV. This observation can be explained in the context of standard model extensions with new gauge bosons $W'$, $Z'$ and heavy neutrinos coupling (mainly) to the electron. We discuss additional signals tha...
[ { "created": "Mon, 11 Aug 2014 16:10:49 GMT", "version": "v1" } ]
2014-12-17
[ [ "Aguilar-Saavedra", "J. A.", "" ], [ "Joaquim", "F. R.", "" ] ]
The CMS collaboration has recently reported a 2.8$\sigma$ excess of $eejj$ events with an invariant mass around 2 TeV. This observation can be explained in the context of standard model extensions with new gauge bosons $W'$, $Z'$ and heavy neutrinos coupling (mainly) to the electron. We discuss additional signals that ...
0810.4858
Nejc Ko\v{s}nik
Svjetlana Fajfer, Nejc Kosnik
Leptoquarks in FCNC charm decays
5 pages, 1 figure
Phys.Rev.D79:017502,2009
10.1103/PhysRevD.79.017502
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recently it was noticed that among many scenarios of new physics leptoquarks might compensate for the disagreement between the lattice and experimental results for the charmed strange meson decay constant. The leptoquarks might modify also the flavor changing neutral current charm decays. In this study we investigate...
[ { "created": "Mon, 27 Oct 2008 16:19:43 GMT", "version": "v1" } ]
2009-02-26
[ [ "Fajfer", "Svjetlana", "" ], [ "Kosnik", "Nejc", "" ] ]
Recently it was noticed that among many scenarios of new physics leptoquarks might compensate for the disagreement between the lattice and experimental results for the charmed strange meson decay constant. The leptoquarks might modify also the flavor changing neutral current charm decays. In this study we investigate i...
1602.06892
Sandra Robles
J. Alberto Casas, Jesus M. Moreno, Sandra Robles, Krzysztof Rolbiecki
Reducing the fine-tuning of gauge-mediated SUSY breaking
16 pages, 11 figures, 1 appendix. Discussion extended, matches EPJC published version
Eur. Phys. J. C (2016) 76:450
10.1140/epjc/s10052-016-4305-4
IFT-UAM/CSIC-16-017; FTUAM-16-6
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Despite their appealing features, models with gauge-mediated supersymmetry breaking (GMSB) typically present a high degree of fine-tuning, due to the initial absence of the top trilinear scalar couplings, $A_t=0$. In this paper, we carefully evaluate such a tuning, showing that is worse than per mil in the minimal mo...
[ { "created": "Mon, 22 Feb 2016 19:03:49 GMT", "version": "v1" }, { "created": "Tue, 30 Aug 2016 20:49:45 GMT", "version": "v2" } ]
2016-09-01
[ [ "Casas", "J. Alberto", "" ], [ "Moreno", "Jesus M.", "" ], [ "Robles", "Sandra", "" ], [ "Rolbiecki", "Krzysztof", "" ] ]
Despite their appealing features, models with gauge-mediated supersymmetry breaking (GMSB) typically present a high degree of fine-tuning, due to the initial absence of the top trilinear scalar couplings, $A_t=0$. In this paper, we carefully evaluate such a tuning, showing that is worse than per mil in the minimal mode...
hep-ph/0611225
Rabindra N. Mohapatra
S. K. Agarwalla, M. K. Parida, R. N. Mohapatra and G. Rajasekaran
Neutrino Mixings and Leptonic CP Violation from CKM Matrix and Majorana Phases
15 pages and 10 figures, typo corrected
Phys.Rev.D75:033007,2007
10.1103/PhysRevD.75.033007
HRI-P-06-11-004
hep-ph hep-ex
null
The high scale mixing unification hypothesis recently proposed by three of us (R. N. M., M. K. P. and G. R.) states that if at the seesaw scale, the quark and lepton mixing matrices are equal then for quasi-degenerate neutrinos, radiative corrections can lead to large solar and atmospheric mixings and small reactor a...
[ { "created": "Thu, 16 Nov 2006 20:53:07 GMT", "version": "v1" }, { "created": "Sun, 3 Dec 2006 14:32:21 GMT", "version": "v2" }, { "created": "Wed, 31 Jan 2007 16:11:30 GMT", "version": "v3" }, { "created": "Wed, 11 Apr 2007 18:36:11 GMT", "version": "v4" } ]
2008-11-26
[ [ "Agarwalla", "S. K.", "" ], [ "Parida", "M. K.", "" ], [ "Mohapatra", "R. N.", "" ], [ "Rajasekaran", "G.", "" ] ]
The high scale mixing unification hypothesis recently proposed by three of us (R. N. M., M. K. P. and G. R.) states that if at the seesaw scale, the quark and lepton mixing matrices are equal then for quasi-degenerate neutrinos, radiative corrections can lead to large solar and atmospheric mixings and small reactor ang...
1404.3048
Masafumi Kurachi
Masafumi Kurachi, Shinya Matsuzaki, Koichi Yamawaki
Discovering walking technirho mesons at the LHC
19 pages, 19 eps figures; (v2) a version to be published
Phys. Rev. D 90, 055028, 2014
10.1103/PhysRevD.90.055028
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We formulate a scale-invariant hidden local symmetry (HLS) as a low-energy effective theory of walking technicolor (WTC) which includes the technidilaton, technipions, and technirho mesons as the low-lying spectra. As a benchmark for LHC phenomenology, we in particular focus on the one-family model of WTC having eigh...
[ { "created": "Fri, 11 Apr 2014 09:31:37 GMT", "version": "v1" }, { "created": "Mon, 22 Sep 2014 14:11:16 GMT", "version": "v2" } ]
2014-11-10
[ [ "Kurachi", "Masafumi", "" ], [ "Matsuzaki", "Shinya", "" ], [ "Yamawaki", "Koichi", "" ] ]
We formulate a scale-invariant hidden local symmetry (HLS) as a low-energy effective theory of walking technicolor (WTC) which includes the technidilaton, technipions, and technirho mesons as the low-lying spectra. As a benchmark for LHC phenomenology, we in particular focus on the one-family model of WTC having eight ...
2306.14441
Bijaya Sahoo Dr.
B. K. Sahoo, Nodoka Yamanaka, Kota Yanase
Revisiting Theoretical Analysis of Electric Dipole Moment of $^{129}$Xe
15 pages including appendix, 8 tables and 1 figure
Phys. Rev. A 108, 042811 (2023)
10.1103/PhysRevA.108.042811
null
hep-ph hep-ex nucl-th physics.atom-ph physics.comp-ph
http://creativecommons.org/licenses/by/4.0/
Linear response approach to the relativistic coupled-cluster (RCC) theory has been extended to estimate contributions from the parity and time-reversal violating pseudoscalar-scalar (Ps-S) and scalar-pseudoscalar (S-Ps) electron-nucleus interactions along with electric dipole moments (EDMs) of electrons ($d_e$) inter...
[ { "created": "Mon, 26 Jun 2023 06:12:36 GMT", "version": "v1" } ]
2023-10-19
[ [ "Sahoo", "B. K.", "" ], [ "Yamanaka", "Nodoka", "" ], [ "Yanase", "Kota", "" ] ]
Linear response approach to the relativistic coupled-cluster (RCC) theory has been extended to estimate contributions from the parity and time-reversal violating pseudoscalar-scalar (Ps-S) and scalar-pseudoscalar (S-Ps) electron-nucleus interactions along with electric dipole moments (EDMs) of electrons ($d_e$) interac...
2201.05719
Benjamin Lehmann
Daniel Davies, Michael Dine and Benjamin V. Lehmann
Light Quarks at Large $N$
21 pages, no figures. Contribution to a Festschrift in honor of Peter Suranyi
null
null
null
hep-ph hep-lat hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Lattice gauge theory simulations are our principal probe of the masses of the light quarks. Results from such computations are the primary evidence against the $m_u=0$ solution to the strong CP problem. The large-$N$ approximation offers an independent approach to light quarks. We extend existing literature, noting t...
[ { "created": "Sat, 15 Jan 2022 00:33:28 GMT", "version": "v1" }, { "created": "Tue, 1 Feb 2022 05:53:07 GMT", "version": "v2" } ]
2022-02-02
[ [ "Davies", "Daniel", "" ], [ "Dine", "Michael", "" ], [ "Lehmann", "Benjamin V.", "" ] ]
Lattice gauge theory simulations are our principal probe of the masses of the light quarks. Results from such computations are the primary evidence against the $m_u=0$ solution to the strong CP problem. The large-$N$ approximation offers an independent approach to light quarks. We extend existing literature, noting tha...
1003.5277
Chung-Lin Shan
Yu-Ting Chou and Chung-Lin Shan
Effects of Residue Background Events in Direct Dark Matter Detection Experiments on the Determination of the WIMP Mass
27 pages, 22 eps figures; v2: revised version for publication, references added and updated
JCAP 1008:014,2010
10.1088/1475-7516/2010/08/014
null
hep-ph astro-ph.HE hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the earlier work on the development of a model-independent data analysis method for determining the mass of Weakly Interacting Massive Particles (WIMPs) by using measured recoil energies from direct Dark Matter detection experiments directly, it was assumed that the analyzed data sets are background-free, i.e., al...
[ { "created": "Sat, 27 Mar 2010 08:33:14 GMT", "version": "v1" }, { "created": "Fri, 6 Aug 2010 09:25:15 GMT", "version": "v2" } ]
2015-03-13
[ [ "Chou", "Yu-Ting", "" ], [ "Shan", "Chung-Lin", "" ] ]
In the earlier work on the development of a model-independent data analysis method for determining the mass of Weakly Interacting Massive Particles (WIMPs) by using measured recoil energies from direct Dark Matter detection experiments directly, it was assumed that the analyzed data sets are background-free, i.e., all ...
hep-ph/9610459
Ulf Meissner
Ulf-G. Mei{\ss}ner (FZ J\"ulich)
The role of massive states in chiral perturbation theory
10 pp, LaTeX, uses psfig, macro included, 1 figure, table 1 updated and corrected, some corrections in section 3, invited talk CEBAF/INT workshop on $N^*$ physics, Seattle, September 1996, to appear in the proceedings
null
null
KFA-IKP(Th)-1996-13
hep-ph nucl-th
null
I review some basic facts about the chiral limit of QCD. This allows to formulate an effective field theory below the chiral symmetry breaking scale, chiral perturbation theory (CHPT). I show that for threshold reactions, the spectrum of QCD is most economically encoded in a set of coupling constants of operators of ...
[ { "created": "Wed, 23 Oct 1996 17:58:15 GMT", "version": "v1" }, { "created": "Thu, 31 Oct 1996 07:41:50 GMT", "version": "v2" } ]
2008-02-03
[ [ "Meißner", "Ulf-G.", "", "FZ Jülich" ] ]
I review some basic facts about the chiral limit of QCD. This allows to formulate an effective field theory below the chiral symmetry breaking scale, chiral perturbation theory (CHPT). I show that for threshold reactions, the spectrum of QCD is most economically encoded in a set of coupling constants of operators of hi...
hep-ph/0610254
Daniel Cabrera
D. Cabrera, R. Rapp
Q\bar{Q} modes in the Quark-Gluon Plasma
3 pages, 6 figures, to appear in the proceedings of the IV International Conference on Quarks and Nuclear Physics (QNP06), Madrid, Spain, June 5-10, 2006
Eur.Phys.J.A31:858-861,2007
10.1140/epja/i2006-10237-y
null
hep-ph nucl-th
null
We study the evolution of heavy quarkonium states with temperature in a Quark-Gluon Plasma by evaluating an in-medium Q\bar{Q} T-matrix within a reduced Bethe-Salpeter equation in S- and P-wave channels. The interaction kernel is extracted from finite-temperature QCD lattice calculations of the singlet free energy of...
[ { "created": "Thu, 19 Oct 2006 18:07:38 GMT", "version": "v1" } ]
2008-11-26
[ [ "Cabrera", "D.", "" ], [ "Rapp", "R.", "" ] ]
We study the evolution of heavy quarkonium states with temperature in a Quark-Gluon Plasma by evaluating an in-medium Q\bar{Q} T-matrix within a reduced Bethe-Salpeter equation in S- and P-wave channels. The interaction kernel is extracted from finite-temperature QCD lattice calculations of the singlet free energy of a...
hep-ph/9412315
Norbert Ligterink
N.E. Ligterink and B.L.G. Bakker (Vrije Universiteit, Amsterdam, The Netherlands)
Equivalence of Light-Front and Covariant Field Theory
47 Pages, LaTeX with LaTeX figures included in the text
Phys.Rev. D52 (1995) 5954-5979
10.1103/PhysRevD.52.5954
null
hep-ph nucl-th
null
In this paper we discuss the relation between the standard covariant quantum field theory and light-front field theory. We define covariant theory by its Feynman diagrams, whereas light-front field theory is defined in terms of light-cone time-ordered diagrams. A general algorithm is proposed that produces the latter...
[ { "created": "Mon, 19 Dec 1994 12:34:48 GMT", "version": "v1" } ]
2009-10-28
[ [ "Ligterink", "N. E.", "", "Vrije Universiteit, Amsterdam, The\n Netherlands" ], [ "Bakker", "B. L. G.", "", "Vrije Universiteit, Amsterdam, The\n Netherlands" ] ]
In this paper we discuss the relation between the standard covariant quantum field theory and light-front field theory. We define covariant theory by its Feynman diagrams, whereas light-front field theory is defined in terms of light-cone time-ordered diagrams. A general algorithm is proposed that produces the latter f...
hep-ph/9603261
Andrzej Czarnecki
Andrzej Czarnecki
Two-loop QCD corrections to $b\to c$ transitions at zero recoil
8 pages, Revtex, one figure included
Phys. Rev. Lett. 76, 4124 (1996)
10.1103/PhysRevLett.76.4124
TTP96-05
hep-ph
null
Complete two-loop QCD corrections to $b\to c$ transitions are presented in the limit of zero recoil. Vector and axial-vector coefficients $\eta_{A,V}$ are calculated analytically in the limit of equal beauty and charm masses, and a series appoximation is obtained for the general mass case. $\eta_A$ is crucial for the...
[ { "created": "Sun, 10 Mar 1996 20:10:38 GMT", "version": "v1" } ]
2016-08-24
[ [ "Czarnecki", "Andrzej", "" ] ]
Complete two-loop QCD corrections to $b\to c$ transitions are presented in the limit of zero recoil. Vector and axial-vector coefficients $\eta_{A,V}$ are calculated analytically in the limit of equal beauty and charm masses, and a series appoximation is obtained for the general mass case. $\eta_A$ is crucial for the d...
1402.6813
Premomoy Ghosh
Premomoy Ghosh, Sanjib Muhuri, Jajati k. Nayak and Raghava Varma
Indication of transverse radial flow in high-multiplicity proton-proton collisions at the Large Hadron Collider
14 pages 8 figures
J. Phys. G: Nucl. Part. Phys. 41 (2014) 035106
10.1088/0954-3899/41/3/035106
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze the measured spectra of $\pi^\pm$, $K^\pm$, $p$($\bar p$) in $pp$ collisions at $\sqrt {s}$ = 0.9, 2.76 and 7 TeV, in the light of blast-wave model to extract the transverse radial flow velocity and kinetic temperature at freeze-out for the system formed in $pp$ collisions. The dependency of the blast-wave...
[ { "created": "Thu, 27 Feb 2014 07:43:16 GMT", "version": "v1" } ]
2014-02-28
[ [ "Ghosh", "Premomoy", "" ], [ "Muhuri", "Sanjib", "" ], [ "Nayak", "Jajati k.", "" ], [ "Varma", "Raghava", "" ] ]
We analyze the measured spectra of $\pi^\pm$, $K^\pm$, $p$($\bar p$) in $pp$ collisions at $\sqrt {s}$ = 0.9, 2.76 and 7 TeV, in the light of blast-wave model to extract the transverse radial flow velocity and kinetic temperature at freeze-out for the system formed in $pp$ collisions. The dependency of the blast-wave p...
hep-ph/9512414
Matthias Jamin
B. Stech
Form Factors for Semi-Leptonic and Radiative Decays of Heavy Mesons to Light Mesons
The definition of the radiative formfactor for the penguin has been changed to a more convenient notation, leading to T_1 = F_1 in the limit of spin symmetry. Additional minor corrections have been applied
Nucl.Phys.Proc.Suppl.50:45-49,1996
10.1016/0920-5632(96)00363-5
HD-THEP-95-54
hep-ph
null
To know and understand form factors of hadronic currents is of decisive importance for analysing exclusive weak decays. The ratios of different form factors of a given process depend on the relativistic spin structure of initial and final particles. It is shown --- assuming simple properties of the spectator particle...
[ { "created": "Sun, 24 Dec 1995 09:32:29 GMT", "version": "v1" }, { "created": "Fri, 19 Jan 1996 12:43:01 GMT", "version": "v2" } ]
2011-07-19
[ [ "Stech", "B.", "" ] ]
To know and understand form factors of hadronic currents is of decisive importance for analysing exclusive weak decays. The ratios of different form factors of a given process depend on the relativistic spin structure of initial and final particles. It is shown --- assuming simple properties of the spectator particle -...
hep-ph/0208088
Gino Isidori
A. Ghinculov, T. Hurth, G. Isidori, Y.-P. Yao
Forward--Backward Asymmetry in B -> X_s l^+ l^- at the NNLL Level
20 pages, 5 figures. v2: typo in (4.26) corrected; discussion on mu-dependence modified
Nucl.Phys. B648 (2003) 254-276
10.1016/S0550-3213(02)00998-7
CERN-TH/2002-161
hep-ph
null
We report the results of a new calculation of soft-gluon corrections in B -> X_s l^+ l^- decays. In particular, we present the first calculation of bremsstrahlung and corresponding virtual terms to the lepton forward-backward asymmetry, which allows us to systematically include all contributions to this observable be...
[ { "created": "Fri, 9 Aug 2002 11:07:02 GMT", "version": "v1" }, { "created": "Thu, 19 Sep 2002 18:15:07 GMT", "version": "v2" } ]
2009-11-07
[ [ "Ghinculov", "A.", "" ], [ "Hurth", "T.", "" ], [ "Isidori", "G.", "" ], [ "Yao", "Y. -P.", "" ] ]
We report the results of a new calculation of soft-gluon corrections in B -> X_s l^+ l^- decays. In particular, we present the first calculation of bremsstrahlung and corresponding virtual terms to the lepton forward-backward asymmetry, which allows us to systematically include all contributions to this observable beyo...
1203.5340
Enrico Bertuzzo Dr
Enrico Bertuzzo and Claudia Frugiuele
Fitting Neutrino Physics with a U(1)_R Lepton Number
19 pages, 3 figures; v2: references added, constraints updated, overall conclusions unchanged
null
10.1007/JHEP05(2012)100
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study neutrino physics in the context of a supersymmetric model where a continuous R-symmetry is identified with the total Lepton Number and one sneutrino can thus play the role of the down type Higgs. We show that R-breaking effects communicated to the visible sector by Anomaly Mediation can reproduce neutrino ma...
[ { "created": "Fri, 23 Mar 2012 20:00:07 GMT", "version": "v1" }, { "created": "Tue, 3 Apr 2012 19:19:12 GMT", "version": "v2" } ]
2012-05-28
[ [ "Bertuzzo", "Enrico", "" ], [ "Frugiuele", "Claudia", "" ] ]
We study neutrino physics in the context of a supersymmetric model where a continuous R-symmetry is identified with the total Lepton Number and one sneutrino can thus play the role of the down type Higgs. We show that R-breaking effects communicated to the visible sector by Anomaly Mediation can reproduce neutrino mass...
1612.05828
Andre Sopczak
Andre Sopczak (Institute of Experimental and Applied Physics, Czech Technical University in Prague)
Searches for ttH (Multilepton+Diphoton) Production in ATLAS
On behalf of the ATLAS Collaboration. Contribution to HC2016, Menlo Park, CA, USA, 9-12 November 2016. 10 pages, 13 figures
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
After the discovery of a Higgs boson, the measurements of its properties are at the forefront of research. The determination of the associated production of a Higgs boson and a pair of top quarks is of particular importance as the ttH Yukawa coupling is large and thus an excellent probe for physics beyond the Standar...
[ { "created": "Sat, 17 Dec 2016 21:44:59 GMT", "version": "v1" } ]
2016-12-31
[ [ "Sopczak", "Andre", "", "Institute of Experimental and Applied Physics, Czech\n Technical University in Prague" ] ]
After the discovery of a Higgs boson, the measurements of its properties are at the forefront of research. The determination of the associated production of a Higgs boson and a pair of top quarks is of particular importance as the ttH Yukawa coupling is large and thus an excellent probe for physics beyond the Standard ...
hep-ph/0312030
Biswajoy Brahmachari
Biswajoy Brahmachari and Eung Jin Chun
Supersymmetric threshold corrections to \Delta m^2_{\odot}
Revised version, Accepted for publication in Physics Letters B
Phys.Lett. B596 (2004) 184-190
10.1016/j.physletb.2004.03.004
KIAS-P03087,VEC/PHYSICS/P/2/2003-2004
hep-ph
null
For nearly degenerate neutrinos, quantum corrections can modify the tree-levelmasses via low energy supersymmetric threshold corrections comparable to the solar oscillation mass scale. We numerically calculate corrections to neutrino masses in minimal supergravity (mSugra) and Gauge Mediated Supersymmetry Breaking (G...
[ { "created": "Tue, 2 Dec 2003 12:38:41 GMT", "version": "v1" }, { "created": "Thu, 4 Mar 2004 09:34:38 GMT", "version": "v2" } ]
2009-11-10
[ [ "Brahmachari", "Biswajoy", "" ], [ "Chun", "Eung Jin", "" ] ]
For nearly degenerate neutrinos, quantum corrections can modify the tree-levelmasses via low energy supersymmetric threshold corrections comparable to the solar oscillation mass scale. We numerically calculate corrections to neutrino masses in minimal supergravity (mSugra) and Gauge Mediated Supersymmetry Breaking (GMS...
2312.17298
Krzysztof M. Graczyk
Beata E. Kowal, Krzysztof M. Graczyk, Artur M. Ankowski, Rwik Dharmapal Banerjee, Hemant Prasad, Jan T. Sobczyk
Empirical fits to inclusive electron-carbon scattering data obtained by deep-learning methods
12 pages, 9 figures; fits and full list of plots are available from repository: https://github.com/bekowal/CarbonElectronNeuralNetwork
null
null
null
hep-ph cs.LG hep-ex nucl-ex nucl-th
http://creativecommons.org/licenses/by/4.0/
Employing the neural network framework, we obtain empirical fits to the electron-scattering cross sections for carbon over a broad kinematic region, extending from the quasielastic peak through resonance excitation to the onset of deep-inelastic scattering. We consider two different methods of obtaining such model-in...
[ { "created": "Thu, 28 Dec 2023 17:03:17 GMT", "version": "v1" }, { "created": "Tue, 16 Jul 2024 09:00:04 GMT", "version": "v2" } ]
2024-07-17
[ [ "Kowal", "Beata E.", "" ], [ "Graczyk", "Krzysztof M.", "" ], [ "Ankowski", "Artur M.", "" ], [ "Banerjee", "Rwik Dharmapal", "" ], [ "Prasad", "Hemant", "" ], [ "Sobczyk", "Jan T.", "" ] ]
Employing the neural network framework, we obtain empirical fits to the electron-scattering cross sections for carbon over a broad kinematic region, extending from the quasielastic peak through resonance excitation to the onset of deep-inelastic scattering. We consider two different methods of obtaining such model-inde...
1112.4699
Oscar St{\aa}l
R. Enberg, R. Pasechnik, O. St{\aa}l
Enhancement of associated H^\pm W^\mp production in the NMSSM
25 pages, 12 figures
Phys. Rev. D 85, 075016 (2012)
10.1103/PhysRevD.85.075016
DESY 11-247; LU TP 11-47
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the associated production of a charged Higgs and a W boson in high-energy pp collisions at the Large Hadron Collider. This is an interesting process for charged Higgs discovery, or exclusion, since the production cross section could depend strongly on the model, offering potential discriminating power betwee...
[ { "created": "Tue, 20 Dec 2011 14:23:53 GMT", "version": "v1" } ]
2012-04-25
[ [ "Enberg", "R.", "" ], [ "Pasechnik", "R.", "" ], [ "Stål", "O.", "" ] ]
We study the associated production of a charged Higgs and a W boson in high-energy pp collisions at the Large Hadron Collider. This is an interesting process for charged Higgs discovery, or exclusion, since the production cross section could depend strongly on the model, offering potential discriminating power between ...
hep-ph/0002252
Shi-Lin Zhu
Shi-Lin Zhu, S.J. Puglia, B.R. Holstein, M. J. Ramsey-Musolf
The Nucleon Anapole Moment and Parity-Violating ep Scattering
RevTex 29 pages + 8 PS figures, references and discussions added, to appear in Phys. Rev. D
Phys.Rev. D62 (2000) 033008
10.1103/PhysRevD.62.033008
null
hep-ph hep-ex nucl-ex nucl-th
null
Parity-violating (PV) interactions among quarks in the nucleon induce a PV $\gamma NN$ coupling, or anapole moment (AM). We compute electroweak gauge-independent contributions to the AM through ${\cal O}(1/\lamchis)$ in chiral perturbation theory. We estimate short-distance PV effects using resonance saturation. The ...
[ { "created": "Thu, 24 Feb 2000 17:20:12 GMT", "version": "v1" }, { "created": "Mon, 28 Feb 2000 22:11:11 GMT", "version": "v2" }, { "created": "Mon, 10 Apr 2000 19:01:05 GMT", "version": "v3" } ]
2009-10-31
[ [ "Zhu", "Shi-Lin", "" ], [ "Puglia", "S. J.", "" ], [ "Holstein", "B. R.", "" ], [ "Ramsey-Musolf", "M. J.", "" ] ]
Parity-violating (PV) interactions among quarks in the nucleon induce a PV $\gamma NN$ coupling, or anapole moment (AM). We compute electroweak gauge-independent contributions to the AM through ${\cal O}(1/\lamchis)$ in chiral perturbation theory. We estimate short-distance PV effects using resonance saturation. The AM...
1311.6825
Hendrik van Hees
H. van Hees, C. Wesp, A. Meistrenko and C. Greiner
Dynamics of the chiral phase transition
10 pages, 5 figures; contribution to the proceedings of the "XXXI Max Born Symposium and HIC for FAIR Workshop", Wroclav, Poland, June 14-16, 2013
Acta Phys. Polonica Proc. Supp. 7, 59 (2014)
10.5506/APhysPolBSupp.7.59
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The intention of this study is the search for signatures of the chiral phase transition in heavy-ion collisions. To investigate the impact of fluctuations, e.g., of the baryon number, at the transition or at a critical point, the linear sigma model is treated in a dynamical (3+1)-dimensional numerical simulation. Chi...
[ { "created": "Tue, 26 Nov 2013 21:21:52 GMT", "version": "v1" } ]
2014-04-14
[ [ "van Hees", "H.", "" ], [ "Wesp", "C.", "" ], [ "Meistrenko", "A.", "" ], [ "Greiner", "C.", "" ] ]
The intention of this study is the search for signatures of the chiral phase transition in heavy-ion collisions. To investigate the impact of fluctuations, e.g., of the baryon number, at the transition or at a critical point, the linear sigma model is treated in a dynamical (3+1)-dimensional numerical simulation. Chira...
1912.09562
Giulia Ricciardi
Giulia Ricciardi, Marcello Rotondo
Determination of the Cabibbo-Kobayashi-Maskawa matrix element $|V_{cb}|$
Completely revised and updated: latest results (including baryons), details, tables, figures and references added; 77 pages, 19 figures (invited review on J. Phys. G: Nucl. Part. Phys)
J. Phys. G: Nucl. Part. Phys. 47 (2020) 113001
10.1088/1361-6471/ab9f01
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this review we present and discuss the determination of the magnitude of the Cabibbo-Kobayashi-Maskawa (CKM) matrix parameter $V_{cb}$. The CKM matrix parametrizes the weak charged current interactions of quarks in the Standard Model (SM), and a precise determination of its elements has always been one of the most...
[ { "created": "Thu, 19 Dec 2019 22:00:10 GMT", "version": "v1" }, { "created": "Sat, 30 May 2020 07:44:30 GMT", "version": "v2" } ]
2020-09-29
[ [ "Ricciardi", "Giulia", "" ], [ "Rotondo", "Marcello", "" ] ]
In this review we present and discuss the determination of the magnitude of the Cabibbo-Kobayashi-Maskawa (CKM) matrix parameter $V_{cb}$. The CKM matrix parametrizes the weak charged current interactions of quarks in the Standard Model (SM), and a precise determination of its elements has always been one of the most i...
1810.07656
Yan-Qing Ma
Peng Zhang, Chen-Yu Wang, Xiao Liu, Yan-Qing Ma, Ce Meng, Kuang-Ta Chao
Semi-analytical calculation of gluon fragmentation into ${^{1}\hspace{-0.6mm}S_{0}^{[1,8]}}$ quarkonia at next-to-leading order
28 pages, 9 figures
null
10.1007/JHEP04(2019)116
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the NLO corrections for the gluon fragmentation functions to a heavy quark-antiquark pair in ${^{1}\hspace{-0.6mm}S_{0}^{[1]}}$ or ${^{1}\hspace{-0.6mm}S_{0}^{[8]}}$ state within NRQCD factorization. We use integration-by-parts reduction to reduce the original expression to simpler master integrals (MIs)...
[ { "created": "Wed, 17 Oct 2018 16:41:33 GMT", "version": "v1" } ]
2019-05-22
[ [ "Zhang", "Peng", "" ], [ "Wang", "Chen-Yu", "" ], [ "Liu", "Xiao", "" ], [ "Ma", "Yan-Qing", "" ], [ "Meng", "Ce", "" ], [ "Chao", "Kuang-Ta", "" ] ]
We calculate the NLO corrections for the gluon fragmentation functions to a heavy quark-antiquark pair in ${^{1}\hspace{-0.6mm}S_{0}^{[1]}}$ or ${^{1}\hspace{-0.6mm}S_{0}^{[8]}}$ state within NRQCD factorization. We use integration-by-parts reduction to reduce the original expression to simpler master integrals (MIs), ...
hep-ph/0610082
Jose Wudka
Bohdan Grzadkowski, Jose Wudka
Strategies and obstacles in constructing realistic higher-dimensional models
4 pages, 1 fugure; contribution to the SUSY06 proceedings
AIPConf.Proc.903:423-426,2007
10.1063/1.2735214
IFT-06-20; UCRHEP-T421
hep-ph hep-th
null
We discuss several aspects of higher dimensional models that contain bulk gauge and fermion fields only. In particular we argue that non-standard boundary conditions involving charge-conjugate fermion fields offer attractive model building possibilities. We also discuss a no-go theorem for 5-dimensional models which ...
[ { "created": "Fri, 6 Oct 2006 20:26:33 GMT", "version": "v1" }, { "created": "Tue, 17 Oct 2006 22:29:40 GMT", "version": "v2" } ]
2008-11-26
[ [ "Grzadkowski", "Bohdan", "" ], [ "Wudka", "Jose", "" ] ]
We discuss several aspects of higher dimensional models that contain bulk gauge and fermion fields only. In particular we argue that non-standard boundary conditions involving charge-conjugate fermion fields offer attractive model building possibilities. We also discuss a no-go theorem for 5-dimensional models which se...
hep-ph/9704346
Ken Kiers
Ken Kiers and Nathan Weiss
Coherent Neutrino Interactions in a Dense Medium
28 pages, 6 figures, Latex; minor changes, one reference added; version to appear in Phys. Rev. D
Phys.Rev. D56 (1997) 5776-5785
10.1103/PhysRevD.56.5776
null
hep-ph astro-ph
null
Motivated by the effect of matter on neutrino oscillations (the MSW effect) we study in more detail the propagation of neutrinos in a dense medium. The dispersion relation for massive neutrinos in a medium is known to have a minimum at nonzero momentum p \sim (G_F\rho)/\sqrt{2}. We study in detail the origin and cons...
[ { "created": "Thu, 17 Apr 1997 18:27:56 GMT", "version": "v1" }, { "created": "Thu, 7 Aug 1997 15:37:27 GMT", "version": "v2" } ]
2009-10-30
[ [ "Kiers", "Ken", "" ], [ "Weiss", "Nathan", "" ] ]
Motivated by the effect of matter on neutrino oscillations (the MSW effect) we study in more detail the propagation of neutrinos in a dense medium. The dispersion relation for massive neutrinos in a medium is known to have a minimum at nonzero momentum p \sim (G_F\rho)/\sqrt{2}. We study in detail the origin and conseq...
hep-ph/0210242
Kingman Cheung
Kingman Cheung (NCTS)
Black hole, string ball, and $p$-brane production at hadronic supercolliders
7 pages, talk presented in the SUSY02, DESY, Hambury, June 2002, references added
null
null
NSC-NCTS-021017
hep-ph
null
In models of large extra dimensions, the string and Planck scales become accessible at future colliders. When the energy scale is above the string scale or Planck scale a number of interesting phenomena occur, namely, production of stringy states, $p$-branes, string balls, black hole, etc. In this Proceedings, we sum...
[ { "created": "Thu, 17 Oct 2002 04:25:32 GMT", "version": "v1" }, { "created": "Sat, 19 Oct 2002 07:05:38 GMT", "version": "v2" } ]
2007-05-23
[ [ "Cheung", "Kingman", "", "NCTS" ] ]
In models of large extra dimensions, the string and Planck scales become accessible at future colliders. When the energy scale is above the string scale or Planck scale a number of interesting phenomena occur, namely, production of stringy states, $p$-branes, string balls, black hole, etc. In this Proceedings, we summa...
1012.0116
Andrej Ficnar
Andrej Ficnar, Jorge Noronha, Miklos Gyulassy
Non-conformal Holography of Heavy Quark Quenching
4 pages, 2 figures. Proceedings for Hard Probes 2010
Nucl.Phys.A855:372-375,2011
10.1016/j.nuclphysa.2011.02.083
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We develop a holographic (bottom-up) gravity model for QCD to understand the connection between the peak in the trace anomaly and the magnitude of heavy quark energy loss in a strongly-coupled plasma. The potential of the scalar field on the gravity side is constructed to reproduce some properties of QCD at finite te...
[ { "created": "Wed, 1 Dec 2010 07:21:13 GMT", "version": "v1" }, { "created": "Mon, 20 Jun 2011 18:37:17 GMT", "version": "v2" } ]
2011-06-21
[ [ "Ficnar", "Andrej", "" ], [ "Noronha", "Jorge", "" ], [ "Gyulassy", "Miklos", "" ] ]
We develop a holographic (bottom-up) gravity model for QCD to understand the connection between the peak in the trace anomaly and the magnitude of heavy quark energy loss in a strongly-coupled plasma. The potential of the scalar field on the gravity side is constructed to reproduce some properties of QCD at finite temp...
hep-ph/0507223
Steve Geer
S. Geer
Physics at an Upgraded Fermilab Proton Driver
14 pages, 6 figures. Presented at the High Intensity Frontiers Workshop (HF05), Isola d'Elba, Italy, 28 May - 1 June, 2005
Nucl.Phys.Proc.Suppl.154:42-55,2006
10.1016/j.nuclphysbps.2006.01.063
FERMILAB-CONF-05-328-E
hep-ph
null
In 2004 the Fermilab Long Range Planning Committee identified a new high intensity Proton Driver as an attractive option for the future, primarily motivated by the recent exciting developments in neutrino physics. Over the last few months a physics study has developed the physics case for the Fermilab Proton Driver. ...
[ { "created": "Tue, 19 Jul 2005 18:52:31 GMT", "version": "v1" }, { "created": "Thu, 11 Aug 2005 21:39:03 GMT", "version": "v2" } ]
2009-11-11
[ [ "Geer", "S.", "" ] ]
In 2004 the Fermilab Long Range Planning Committee identified a new high intensity Proton Driver as an attractive option for the future, primarily motivated by the recent exciting developments in neutrino physics. Over the last few months a physics study has developed the physics case for the Fermilab Proton Driver. Th...
hep-ph/0407206
Singh N. Nimai
N. Nimai Singh (ICTP, Trieste, Italy, and Gauhati Univ) and Mrinal K. Das (Gauhati Univ)
Radiative generation of $\bigtriangleup m^2_{21}$ and $\theta_{13}$ in two-fold degenerate neutrino models
15 pages, 2 figures, some references added and minor changes in text
null
null
null
hep-ph
null
We study the implications on an important result on radiative corrections (JM conjecture) which states that the solar mass scale $\bigtriangleup m^2_{21}$ corresponding to the large mixing angle (LMA) MSW solution of the solar neutrino problem, can be generated through radiative corrections in the minimal supersymmet...
[ { "created": "Mon, 19 Jul 2004 10:03:44 GMT", "version": "v1" }, { "created": "Thu, 29 Jul 2004 15:09:49 GMT", "version": "v2" } ]
2007-05-23
[ [ "Singh", "N. Nimai", "", "ICTP, Trieste, Italy, and Gauhati Univ" ], [ "Das", "Mrinal K.", "", "Gauhati Univ" ] ]
We study the implications on an important result on radiative corrections (JM conjecture) which states that the solar mass scale $\bigtriangleup m^2_{21}$ corresponding to the large mixing angle (LMA) MSW solution of the solar neutrino problem, can be generated through radiative corrections in the minimal supersymmetri...
hep-ph/9810548
Xiaofeng Guo
Xiaofeng Guo (Kentucky) and Jianwei Qiu (BNL/Iowa State)
The Leading Power Corrections to the Structure Functions
Latex, 16 pages
null
null
UK/TP 98-13; BNL-HET-98/36
hep-ph
null
We show that when Bjorken $x_B$ is large, the leading order twist-four contributions to the structure functions can be expressed in terms of the derivatives of the normal twist-two parton distributions. Our analytical results are not only consistent with the parameterized power corrections extracted from the data, bu...
[ { "created": "Fri, 30 Oct 1998 16:18:30 GMT", "version": "v1" } ]
2007-05-23
[ [ "Guo", "Xiaofeng", "", "Kentucky" ], [ "Qiu", "Jianwei", "", "BNL/Iowa State" ] ]
We show that when Bjorken $x_B$ is large, the leading order twist-four contributions to the structure functions can be expressed in terms of the derivatives of the normal twist-two parton distributions. Our analytical results are not only consistent with the parameterized power corrections extracted from the data, but ...
1802.00651
Matt Visser
Matt Visser (Victoria University of Wellington)
Post-Newtonian particle physics in curved spacetime
4 pages
null
null
null
hep-ph gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In three very recent papers, (an initial paper by Morishima and Futamase, and two subsequent papers by Morishima, Futamase, and Shimizu), it has been argued that the observed experimental anomaly in the anomalous magnetic moment of the muon might be explained using general relativity. It is my melancholy duty to repo...
[ { "created": "Fri, 2 Feb 2018 12:05:51 GMT", "version": "v1" } ]
2018-02-05
[ [ "Visser", "Matt", "", "Victoria University of Wellington" ] ]
In three very recent papers, (an initial paper by Morishima and Futamase, and two subsequent papers by Morishima, Futamase, and Shimizu), it has been argued that the observed experimental anomaly in the anomalous magnetic moment of the muon might be explained using general relativity. It is my melancholy duty to report...
hep-ph/0306075
Smirnov Alexei
Alexei Yu. Smirnov
Neutrino Physics after KamLAND
21 pages, latex, 6 figures. Invited talk given at the International workshop NOON2003, February 10 - 14, 2003, Kanazawa, Japan
null
10.1142/9789812703101_0012
null
hep-ph hep-ex
null
The neutrino anomalies were driving force of the developments in neutrino physics during the last 30 - 35 years. I will consider status of the anomalies after the first KamLAND result. The main questions are "What is left?" and "What is the next?" In the new phase, the phenomenological objectives of neutrino physics ...
[ { "created": "Mon, 9 Jun 2003 16:37:14 GMT", "version": "v1" } ]
2017-08-23
[ [ "Smirnov", "Alexei Yu.", "" ] ]
The neutrino anomalies were driving force of the developments in neutrino physics during the last 30 - 35 years. I will consider status of the anomalies after the first KamLAND result. The main questions are "What is left?" and "What is the next?" In the new phase, the phenomenological objectives of neutrino physics co...
1707.05997
Mukesh Kumar
Chuene Mosomane, Mukesh Kumar, Alan S. Cornell and Bruce Mellado
Exploring CP-even scalars of a Two Higgs-doublet model in future $e^-\,p$ colliders
7 pages, 2 figures, 2 Tables, Accepted for publication in conference proceedings (Workshop on High Energy Particle Physics, iThemba LABS, Johannesburg, 1-3 Feb 2017)
null
10.1088/1742-6596/889/1/012004
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this proceeding we shall explore the potential of a future $e^- \,p$ collider to probe the CP-even scalars in a two Higgs doublet model. We consider Type-I in this study. The mass of the lighter scalar particle is considered to be the Higgs-boson, $m_h = 125$ GeV, and a heavy scalar $m_H = 270$ GeV. The centre of ...
[ { "created": "Wed, 19 Jul 2017 09:50:42 GMT", "version": "v1" } ]
2017-10-11
[ [ "Mosomane", "Chuene", "" ], [ "Kumar", "Mukesh", "" ], [ "Cornell", "Alan S.", "" ], [ "Mellado", "Bruce", "" ] ]
In this proceeding we shall explore the potential of a future $e^- \,p$ collider to probe the CP-even scalars in a two Higgs doublet model. We consider Type-I in this study. The mass of the lighter scalar particle is considered to be the Higgs-boson, $m_h = 125$ GeV, and a heavy scalar $m_H = 270$ GeV. The centre of ma...
hep-ph/0010033
Barry R. Holstein
Barry R. Holstein
Effective Interactions are Effective Interactions
52 page latex file, didactic lectures on effective field theory given at Hadron2000, Caraguatatuba, Brazil, April 2000
null
10.1142/9789812811653_0002
null
hep-ph nucl-th
null
The subject of effective interactions is introduced and applications in both quantum mechanics and quantum field theory are presented. In particular the use of chiral perturbation theory as an effective low energy description of QCD is developed and it is argued that such methods rally are effective in both the meson...
[ { "created": "Wed, 4 Oct 2000 15:13:33 GMT", "version": "v1" } ]
2017-08-23
[ [ "Holstein", "Barry R.", "" ] ]
The subject of effective interactions is introduced and applications in both quantum mechanics and quantum field theory are presented. In particular the use of chiral perturbation theory as an effective low energy description of QCD is developed and it is argued that such methods rally are effective in both the meson a...
2204.00663
Ulrich Haisch
Ulrich Haisch, Darren J. Scott, Marius Wiesemann, Giulia Zanderighi and Silvia Zanoli
NNLO event generation for $\boldsymbol{pp \to Zh \to \ell^+\ell^- b \bar b}$ production in the SM effective field theory
32 pages, 7 figures; v2: matches version accepted for publication in JHEP
null
null
MPP-2022-53
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
We consider associated $Zh$ production with $Z \to \ell^+ \ell^-$ and $h \to b \bar b$ decays in hadronic collisions. In the framework of the Standard Model effective field theory (SMEFT) we calculate the QCD corrections to this process and achieve next-to-next-to-leading order plus parton shower (NNLO$+$PS) accuracy...
[ { "created": "Fri, 1 Apr 2022 19:01:47 GMT", "version": "v1" }, { "created": "Fri, 8 Jul 2022 16:19:56 GMT", "version": "v2" } ]
2022-07-11
[ [ "Haisch", "Ulrich", "" ], [ "Scott", "Darren J.", "" ], [ "Wiesemann", "Marius", "" ], [ "Zanderighi", "Giulia", "" ], [ "Zanoli", "Silvia", "" ] ]
We consider associated $Zh$ production with $Z \to \ell^+ \ell^-$ and $h \to b \bar b$ decays in hadronic collisions. In the framework of the Standard Model effective field theory (SMEFT) we calculate the QCD corrections to this process and achieve next-to-next-to-leading order plus parton shower (NNLO$+$PS) accuracy u...
2112.03283
Vedran Brdar
Vedran Brdar, Andr\'e de Gouv\^ea, Pedro A. N. Machado, Ryan Plestid
Resonances in $\bar\nu_e-e^-$ scattering below a TeV
6 pages, 3 figures
Phys. Rev. D 105, 093004 (2022)
10.1103/PhysRevD.105.093004
FERMILAB-PUB-21-681-T, NUHEP-TH/21-18
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the resonant production and detection of charged mesons in existing and near-future neutrino scattering experiments with $E_\nu \lesssim 1$ TeV, characteristic of high-energy atmospheric neutrinos or collider-sourced neutrino beams. The most promising candidate is the reaction $\bar{\nu}_e e^-\rightarrow ...
[ { "created": "Mon, 6 Dec 2021 19:00:01 GMT", "version": "v1" }, { "created": "Mon, 16 May 2022 17:03:45 GMT", "version": "v2" } ]
2022-05-17
[ [ "Brdar", "Vedran", "" ], [ "de Gouvêa", "André", "" ], [ "Machado", "Pedro A. N.", "" ], [ "Plestid", "Ryan", "" ] ]
We consider the resonant production and detection of charged mesons in existing and near-future neutrino scattering experiments with $E_\nu \lesssim 1$ TeV, characteristic of high-energy atmospheric neutrinos or collider-sourced neutrino beams. The most promising candidate is the reaction $\bar{\nu}_e e^-\rightarrow \r...
1809.06812
Anna Radovskaya
A.V. Leonidov, A.A. Radovskaya
Quantum corrections to the Classical Statistical Approximation for the expanding quantum field
null
null
10.1140/epjc/s10052-019-6586-x
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We found the deviation of the equation of state from ultrarelativistic one due to quantum corrections for a nonequilibrium longitudinally expanding scalar field. Relaxation of highly excited quantum field is usually described in terms of Classical Statistical Approximation (CSA). However, the expansion of the system ...
[ { "created": "Tue, 18 Sep 2018 16:10:03 GMT", "version": "v1" } ]
2019-02-20
[ [ "Leonidov", "A. V.", "" ], [ "Radovskaya", "A. A.", "" ] ]
We found the deviation of the equation of state from ultrarelativistic one due to quantum corrections for a nonequilibrium longitudinally expanding scalar field. Relaxation of highly excited quantum field is usually described in terms of Classical Statistical Approximation (CSA). However, the expansion of the system re...
hep-ph/9710251
Carlo Giunti
S.M. Bilenky
Neutrinos: past, present, future
18 pages, no figures. Lecture presented at the International School of Physics "Enrico Fermi", Varenna, Italy, 22 July - 1 August 1997
null
null
IASSNS-AST 97/54
hep-ph
null
A general overview of neutrino physics is given. The history of the neutrino starting from Pauli and Fermi is briefly presented. Two-component neutrinos, the phenomenological V-A theory and the standard model are discussed. The problem of neutrino masses and mixing is reviewed.
[ { "created": "Mon, 6 Oct 1997 13:36:35 GMT", "version": "v1" } ]
2007-05-23
[ [ "Bilenky", "S. M.", "" ] ]
A general overview of neutrino physics is given. The history of the neutrino starting from Pauli and Fermi is briefly presented. Two-component neutrinos, the phenomenological V-A theory and the standard model are discussed. The problem of neutrino masses and mixing is reviewed.
2306.12489
Anson Hook
Anson Hook and Riccardo Rattazzi
Softening the UV without New Particles
22 pages, 2 figures, v2. fixed typos
null
null
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore an odd class of QFTs where a hierarchy problem is resolved with new dynamics as opposed to new particles. The essential element of our construction is a $U(1)$ pseudo-NG boson with symmetry breaking interactions all characterized by a large number $N$ of units of the fundamental charge. In the resulting ef...
[ { "created": "Wed, 21 Jun 2023 18:03:26 GMT", "version": "v1" }, { "created": "Tue, 12 Dec 2023 22:11:58 GMT", "version": "v2" } ]
2023-12-14
[ [ "Hook", "Anson", "" ], [ "Rattazzi", "Riccardo", "" ] ]
We explore an odd class of QFTs where a hierarchy problem is resolved with new dynamics as opposed to new particles. The essential element of our construction is a $U(1)$ pseudo-NG boson with symmetry breaking interactions all characterized by a large number $N$ of units of the fundamental charge. In the resulting effe...
0709.4092
S. Weinzierl
Christian Bogner and Stefan Weinzierl
Resolution of singularities for multi-loop integrals
23 pages, minor changes, version to be published
Comput.Phys.Commun.178:596-610,2008
10.1016/j.cpc.2007.11.012
null
hep-ph
null
We report on a program for the numerical evaluation of divergent multi-loop integrals. The program is based on iterated sector decomposition. We improve the original algorithm of Binoth and Heinrich such that the program is guaranteed to terminate. The program can be used to compute numerically the Laurent expansion ...
[ { "created": "Wed, 26 Sep 2007 07:46:42 GMT", "version": "v1" }, { "created": "Mon, 3 Dec 2007 18:52:11 GMT", "version": "v2" } ]
2008-11-26
[ [ "Bogner", "Christian", "" ], [ "Weinzierl", "Stefan", "" ] ]
We report on a program for the numerical evaluation of divergent multi-loop integrals. The program is based on iterated sector decomposition. We improve the original algorithm of Binoth and Heinrich such that the program is guaranteed to terminate. The program can be used to compute numerically the Laurent expansion of...
hep-ph/0504129
Gregory Soyez
G. Soyez
Fluctuations effects in high-energy evolution of QCD
12 pages, 7 figures, minor corrections, version appeared in Phys. Rev. D
Phys.Rev. D72 (2005) 016007
10.1103/PhysRevD.72.016007
null
hep-ph
null
Recently, Iancu and Triantafyllopoulos have proposed a hierarchy of evolution equations in QCD at high energy which generalises previous approaches by including the effects of gluon number fluctuations and thus the pomeron loops. In this paper, we present the first numerical simulations of the Langevin equation which...
[ { "created": "Fri, 15 Apr 2005 16:24:23 GMT", "version": "v1" }, { "created": "Wed, 7 Jun 2006 10:54:27 GMT", "version": "v2" } ]
2009-11-11
[ [ "Soyez", "G.", "" ] ]
Recently, Iancu and Triantafyllopoulos have proposed a hierarchy of evolution equations in QCD at high energy which generalises previous approaches by including the effects of gluon number fluctuations and thus the pomeron loops. In this paper, we present the first numerical simulations of the Langevin equation which r...
hep-ph/0107172
Beata Ziaja
B. Ziaja
Low x double $ln^2(1/x)$ resummation effects at the sum rules for nucleon structure function $g_1$
19 pages, latex, 7 figures
Acta Phys.Polon.B32:2863,2001
null
null
hep-ph
null
We have estimated the contributions to the moments of polarized nucleon structure function $g_1(x,Q^2)$ coming from the region of the very low x ($10^{-5}<x$). Our approach uses the nucleon structure function extrapolated to the region of low x by the means of the double $ln^2(1/x)$ resummation. The $Q^2$ evolution o...
[ { "created": "Mon, 16 Jul 2001 11:59:45 GMT", "version": "v1" } ]
2014-11-17
[ [ "Ziaja", "B.", "" ] ]
We have estimated the contributions to the moments of polarized nucleon structure function $g_1(x,Q^2)$ coming from the region of the very low x ($10^{-5}<x$). Our approach uses the nucleon structure function extrapolated to the region of low x by the means of the double $ln^2(1/x)$ resummation. The $Q^2$ evolution of ...
hep-ph/9910300
Johann Rafelski
Jan Rafelski (Department of Physics, University of Arizona), and Jean Letessier (LPTHE-Paris 7)
Diagnosis of QGP with Strange Hadrons
24 pages, including 5 figures; Presented at the 29th Krakow School of Theoretical Physics, Zakopane, June 1999, submitted to Acta Physica Polonica B
ActaPhys.Polon.B30:3559-3583,1999
null
null
hep-ph nucl-th
null
We review the current status of strangeness as signature of the formation and dissociation of the deconfined QGP at the SPS energy scale, and present the status of our considerations for RHIC energies. By analyzing, within the framework of a Fermi statistical model, the hadron abundance and spectra, the properties of...
[ { "created": "Mon, 11 Oct 1999 20:17:20 GMT", "version": "v1" } ]
2008-11-26
[ [ "Rafelski", "Jan", "", "Department of Physics, University of Arizona" ], [ "Letessier", "Jean", "", "LPTHE-Paris 7" ] ]
We review the current status of strangeness as signature of the formation and dissociation of the deconfined QGP at the SPS energy scale, and present the status of our considerations for RHIC energies. By analyzing, within the framework of a Fermi statistical model, the hadron abundance and spectra, the properties of a...
1703.02057
Sacha Davidson
Vincenzo Cirigliano, Sacha Davidson, Yoshitaka Kuno
Spin-dependent $\mu \to e$ conversion
6 pages, I figure, typo corrected in eqn 6
null
10.1016/j.physletb.2017.05.053
LA-UR-17-21718, OUHEP-17-1
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The experimental sensitivity to $\mu \to e$ conversion on nuclei is expected to improve by four orders of magnitude in coming years. We consider the impact of $\mu \to e$ flavour-changing tensor and axial-vector four-fermion operators which couple to the spin of nucleons. Such operators, which have not previously bee...
[ { "created": "Mon, 6 Mar 2017 19:00:17 GMT", "version": "v1" }, { "created": "Mon, 22 May 2017 06:39:19 GMT", "version": "v2" }, { "created": "Thu, 30 Aug 2018 10:36:32 GMT", "version": "v3" } ]
2018-08-31
[ [ "Cirigliano", "Vincenzo", "" ], [ "Davidson", "Sacha", "" ], [ "Kuno", "Yoshitaka", "" ] ]
The experimental sensitivity to $\mu \to e$ conversion on nuclei is expected to improve by four orders of magnitude in coming years. We consider the impact of $\mu \to e$ flavour-changing tensor and axial-vector four-fermion operators which couple to the spin of nucleons. Such operators, which have not previously been ...
2209.03546
Jian-Ming Shen
Jian-Ming Shen, Zhi-Jian Zhou, Sheng-Quan Wang, Jiang Yan, Zhi-Fei Wu, Xing-Gang Wu and Stanley J. Brodsky
Extending the Predictive Power of Perturbative QCD Using the Principle of Maximum Conformality and Bayesian Analysis
14 pages, 4 figures, published version
Eur.Phys.J.C 83, 326 (2023)
10.1140/epjc/s10052-023-11531-w
SLAC-PUB-17690
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In addition to the evaluation of high-order loop contributions, the precision and predictive power of perturbative QCD (pQCD) predictions depends on two important issues: (1) how to achieve a reliable, convergent fixed-order series, and (2) how to reliably estimate the contributions of unknown higher-order terms. The...
[ { "created": "Thu, 8 Sep 2022 03:18:32 GMT", "version": "v1" }, { "created": "Thu, 27 Apr 2023 19:14:29 GMT", "version": "v2" } ]
2023-05-01
[ [ "Shen", "Jian-Ming", "" ], [ "Zhou", "Zhi-Jian", "" ], [ "Wang", "Sheng-Quan", "" ], [ "Yan", "Jiang", "" ], [ "Wu", "Zhi-Fei", "" ], [ "Wu", "Xing-Gang", "" ], [ "Brodsky", "Stanley J.", "" ] ]
In addition to the evaluation of high-order loop contributions, the precision and predictive power of perturbative QCD (pQCD) predictions depends on two important issues: (1) how to achieve a reliable, convergent fixed-order series, and (2) how to reliably estimate the contributions of unknown higher-order terms. The r...
hep-ph/0612097
Oystein Elgaroy
Oystein Elgaroy (ITA, University of Oslo)
Upper limits on neutrino masses from cosmology
3 pages, 1 figure. Contribution to the proceedings from NOW2006
null
10.1016/j.nuclphysbps.2007.02.005
null
hep-ph astro-ph
null
Upper limits on neutrino masses from cosmology have been reported recently to reach the impressive sub-eV level, which is competitive with future terrestrial neutrino experiments. In this brief overview of the latest limits from cosmology I point out some of the caveats that should be borne in mind when interpreting ...
[ { "created": "Fri, 8 Dec 2006 14:54:54 GMT", "version": "v1" } ]
2009-11-11
[ [ "Elgaroy", "Oystein", "", "ITA, University of Oslo" ] ]
Upper limits on neutrino masses from cosmology have been reported recently to reach the impressive sub-eV level, which is competitive with future terrestrial neutrino experiments. In this brief overview of the latest limits from cosmology I point out some of the caveats that should be borne in mind when interpreting th...
1412.3811
Javier Rubio
Fedor Bezrukov, Javier Rubio and Mikhail Shaposhnikov
Living beyond the edge: Higgs inflation and vacuum metastability
20 pages, 23 figures, published version, added clarifications and references, new appendix, corrected typos
Phys. Rev. D 92, 083512 (2015)
10.1103/PhysRevD.92.083512
null
hep-ph astro-ph.CO gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The measurements of the Higgs mass and top Yukawa coupling indicate that we live in a very special Universe, at the edge of the absolute stability of the electroweak vacuum. If fully stable, the Standard Model (SM) can be extended all the way up to the inflationary scale and the Higgs field, non-minimally coupled to ...
[ { "created": "Thu, 11 Dec 2014 21:00:20 GMT", "version": "v1" }, { "created": "Mon, 26 Oct 2015 11:40:12 GMT", "version": "v2" } ]
2015-10-27
[ [ "Bezrukov", "Fedor", "" ], [ "Rubio", "Javier", "" ], [ "Shaposhnikov", "Mikhail", "" ] ]
The measurements of the Higgs mass and top Yukawa coupling indicate that we live in a very special Universe, at the edge of the absolute stability of the electroweak vacuum. If fully stable, the Standard Model (SM) can be extended all the way up to the inflationary scale and the Higgs field, non-minimally coupled to gr...
1806.10622
Massimiliano Procura
Massimiliano Procura, Wouter J. Waalewijn, Lisa Zeune
Joint resummation of two angularities at next-to-next-to-leading logarithmic order
40 pages, 13 figures. v3: fixed a few minor typos
null
10.1007/JHEP10(2018)098
Nikhef 2018-013, UWThPh 2018-19, MITP/18-051
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Multivariate analyses are emerging as important tools to understand properties of hadronic jets which play a key role in the LHC experimental program. We take a first step towards precise and differential theory predictions by calculating the cross section for $e^+ e^- \to$ 2 jets differential in the angularities $e_...
[ { "created": "Wed, 27 Jun 2018 18:00:23 GMT", "version": "v1" }, { "created": "Mon, 21 Jan 2019 14:23:33 GMT", "version": "v2" }, { "created": "Mon, 26 Aug 2019 13:17:24 GMT", "version": "v3" } ]
2019-08-27
[ [ "Procura", "Massimiliano", "" ], [ "Waalewijn", "Wouter J.", "" ], [ "Zeune", "Lisa", "" ] ]
Multivariate analyses are emerging as important tools to understand properties of hadronic jets which play a key role in the LHC experimental program. We take a first step towards precise and differential theory predictions by calculating the cross section for $e^+ e^- \to$ 2 jets differential in the angularities $e_\a...
2108.07730
Elliot Leader
Elliot Leader
On the role of the subsidiary fields in the momentum and angular momentum in covariantly quantized QED and QCD
14 pages
null
10.1103/PhysRevD.105.036005
null
hep-ph hep-th
http://creativecommons.org/licenses/by/4.0/
The covariant quantization of QED and QCD requires the introduction of subsidiary gauge-fixing and ghost fields and it is crucial to understand the role of these in the energy-momentum tensor, and in the momentum and angular momentum operators. These issues were studied in \cite{Leader:2011za}, and key results from t...
[ { "created": "Tue, 17 Aug 2021 16:04:20 GMT", "version": "v1" } ]
2022-02-16
[ [ "Leader", "Elliot", "" ] ]
The covariant quantization of QED and QCD requires the introduction of subsidiary gauge-fixing and ghost fields and it is crucial to understand the role of these in the energy-momentum tensor, and in the momentum and angular momentum operators. These issues were studied in \cite{Leader:2011za}, and key results from thi...
hep-ph/9303304
Paul Langacker0
Paul Langacker
Precision Tests of the Standard Model
Lectures presented at {\it TASI-92}, Boulder, June 1992, 22 Pages, Latex, 9 figures, available on request, UPR-0555T
null
null
null
hep-ph
null
The implications of recent precision $Z$-pole, $W$ mass, and weak neutral current data for testing the standard electroweak model, constraining the $t$ quark and Higgs masses, \alsz, and grand unification are discussed. A fit to all data yields $\siz = 0.2328 \pm 0.0007$ (\msb) or $\sinn \equiv 1 - \mw^2/\mz^2 = 0.22...
[ { "created": "Wed, 24 Mar 1993 23:08:43 GMT", "version": "v1" } ]
2007-05-23
[ [ "Langacker", "Paul", "" ] ]
The implications of recent precision $Z$-pole, $W$ mass, and weak neutral current data for testing the standard electroweak model, constraining the $t$ quark and Higgs masses, \alsz, and grand unification are discussed. A fit to all data yields $\siz = 0.2328 \pm 0.0007$ (\msb) or $\sinn \equiv 1 - \mw^2/\mz^2 = 0.2267...
1103.0558
Ernesto L\'opez
R. Gonzalez Felipe, E. Lopez Fune, D. Manreza Paret and A. Perez Martinez
Magnetized strangelets at finite temperature
10 pages, 10 figures, discussion extended, new references added
J.Phys.G39:045006,2012
10.1088/0954-3899/39/4/045006
null
hep-ph astro-ph.CO astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The main properties of magnetized strangelets, namely, their energy per baryon, radius and electric charge, are studied. Temperature effects are also taken into account in order to study their stability compared to the 56Fe isotope and non-magnetized strangelets using the liquid drop model. Massive quarks are conside...
[ { "created": "Wed, 2 Mar 2011 21:16:31 GMT", "version": "v1" }, { "created": "Mon, 26 Sep 2011 19:05:42 GMT", "version": "v2" } ]
2013-10-18
[ [ "Felipe", "R. Gonzalez", "" ], [ "Fune", "E. Lopez", "" ], [ "Paret", "D. Manreza", "" ], [ "Martinez", "A. Perez", "" ] ]
The main properties of magnetized strangelets, namely, their energy per baryon, radius and electric charge, are studied. Temperature effects are also taken into account in order to study their stability compared to the 56Fe isotope and non-magnetized strangelets using the liquid drop model. Massive quarks are considere...
1005.2811
Chien-Wen Hwang
Chien-Wen Hwang and Rurng-Sheng Guo
Two-photon and two-gluon decays of p-wave heavy quarkonium using a covariant light-front approach
19 pages, 3 figures, 3 tables, some typos are corrected, version to be published in Phys. Rev. D
Phys.Rev.D82:034021,2010
10.1103/PhysRevD.82.034021
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, a study of two-photon and two-gluon decays in the context of p-wave heavy quarkonia is presented. Within the covariant light-front framework, the annihilation rates of scalar and tensor quarkonium states are derived. In the absence of free parameters in this case, the results for the charmonium decay w...
[ { "created": "Mon, 17 May 2010 05:27:59 GMT", "version": "v1" }, { "created": "Thu, 29 Jul 2010 02:40:12 GMT", "version": "v2" }, { "created": "Wed, 18 Aug 2010 06:23:41 GMT", "version": "v3" } ]
2015-03-17
[ [ "Hwang", "Chien-Wen", "" ], [ "Guo", "Rurng-Sheng", "" ] ]
In this paper, a study of two-photon and two-gluon decays in the context of p-wave heavy quarkonia is presented. Within the covariant light-front framework, the annihilation rates of scalar and tensor quarkonium states are derived. In the absence of free parameters in this case, the results for the charmonium decay wid...
hep-ph/0510048
Dan Hooper
Francis Halzen and Dan Hooper
Prospects For Detecting Dark Matter With Neutrino Telescopes In Light Of Recent Results From Direct Detection Experiments
13 pages, 6 figures
Phys.Rev.D73:123507,2006
10.1103/PhysRevD.73.123507
MADPH-05-1446; FERMILAB-PUB-05-434-A
hep-ph astro-ph
null
Direct detection dark matter experiments, lead by the CDMS collaboration, have placed increasingly stronger constraints on the cross sections for elastic scattering of WIMPs on nucleons. These results impact the prospects for the indirect detection of dark matter using neutrino telescopes. With this in mind, we revis...
[ { "created": "Tue, 4 Oct 2005 19:03:37 GMT", "version": "v1" } ]
2016-09-06
[ [ "Halzen", "Francis", "" ], [ "Hooper", "Dan", "" ] ]
Direct detection dark matter experiments, lead by the CDMS collaboration, have placed increasingly stronger constraints on the cross sections for elastic scattering of WIMPs on nucleons. These results impact the prospects for the indirect detection of dark matter using neutrino telescopes. With this in mind, we revisit...
2312.06494
Kai Henryk Sieja
Martin Gorbahn, Ulserik Moldanazarova, Kai Henryk Sieja, Emmanuel Stamou, Mustafa Tabet
The Anatomy of $K^+\to\pi^+\nu\bar\nu$ Distributions
23 pages, 6 figures
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
The excellent experimental prospects to measure the invisible mass spectrum of the $K^+\to\pi^+\nu\bar\nu$ decay opens a new path to test generalised quark--neutrino interactions with flavour changing $s\to d$ transitions and as such to novel probes of Physics beyond the Standard Model. Such signals can be a conseque...
[ { "created": "Mon, 11 Dec 2023 16:18:55 GMT", "version": "v1" }, { "created": "Tue, 2 Jul 2024 11:34:21 GMT", "version": "v2" } ]
2024-07-03
[ [ "Gorbahn", "Martin", "" ], [ "Moldanazarova", "Ulserik", "" ], [ "Sieja", "Kai Henryk", "" ], [ "Stamou", "Emmanuel", "" ], [ "Tabet", "Mustafa", "" ] ]
The excellent experimental prospects to measure the invisible mass spectrum of the $K^+\to\pi^+\nu\bar\nu$ decay opens a new path to test generalised quark--neutrino interactions with flavour changing $s\to d$ transitions and as such to novel probes of Physics beyond the Standard Model. Such signals can be a consequenc...
hep-ph/9812466
Sheldon Lee Glashow, Hpop
Sheldon L. Glashow
Beating the Standard Model
8 pages, harvmac
null
null
null
hep-ph
null
This report, adapted from my talk at the 1998 Ettore Majorana Subnuclear School at Erice, proffers speculative explanations of the strong CP problem and the existence of cosmic rays beyond the GZK bound. It is based on works done with Sidney Coleman and Howard Georgi.
[ { "created": "Mon, 21 Dec 1998 19:55:45 GMT", "version": "v1" } ]
2007-05-23
[ [ "Glashow", "Sheldon L.", "" ] ]
This report, adapted from my talk at the 1998 Ettore Majorana Subnuclear School at Erice, proffers speculative explanations of the strong CP problem and the existence of cosmic rays beyond the GZK bound. It is based on works done with Sidney Coleman and Howard Georgi.
2009.03735
Shane Farnsworth
Shane Farnsworth
Incompatible coordinate algebra representations as the origin of particle generations
6 pages, 1 figure
null
null
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The success of the Higgs mechanism in the standard model has led to the speculation that the standard model gauge group might arise through an analogous breaking of a yet more unified group. Such `grand unified theories' have the advantage of unifying both the gauge structure and fermion representations of the standa...
[ { "created": "Mon, 17 Aug 2020 17:59:09 GMT", "version": "v1" } ]
2020-09-09
[ [ "Farnsworth", "Shane", "" ] ]
The success of the Higgs mechanism in the standard model has led to the speculation that the standard model gauge group might arise through an analogous breaking of a yet more unified group. Such `grand unified theories' have the advantage of unifying both the gauge structure and fermion representations of the standard...
hep-ph/0503199
Cecilia Jarlskog
C. Jarlskog
The quark mixing matrix with manifest Cabibbo substructure and an angle of the unitarity triangle as one of its parameters
null
Phys.Lett. B615 (2005) 207-212
10.1016/j.physletb.2005.04.033
null
hep-ph
null
The quark mixing matrix is parameterised such that its "Cabibbo substructure" is emphasised. One can choose one of the parameters to be an arbitrarily chosen angle of the unitarity triangle, for example the angle $\beta$ (also called $\Phi_1$).
[ { "created": "Mon, 21 Mar 2005 07:41:44 GMT", "version": "v1" } ]
2009-11-11
[ [ "Jarlskog", "C.", "" ] ]
The quark mixing matrix is parameterised such that its "Cabibbo substructure" is emphasised. One can choose one of the parameters to be an arbitrarily chosen angle of the unitarity triangle, for example the angle $\beta$ (also called $\Phi_1$).
hep-ph/9504351
Gabriel Lopez Castro
G. Lopez Castro, J. L. Lucio M. and J. Pestieau
Remarks on the $W$ propagator at the resonance
Latex file, 13 pages
Int.J.Mod.Phys. A11 (1996) 563-570
10.1142/S0217751X96000262
null
hep-ph
null
We address the problem of properly defining the $W^{\pm}, Z^0$ propagator in the resonance region. Particular attention is paid to the longitudinal piece of this propagator. We also discuss the related renormalization procedures and the unitarity property.
[ { "created": "Thu, 20 Apr 1995 21:07:02 GMT", "version": "v1" } ]
2009-10-28
[ [ "Castro", "G. Lopez", "" ], [ "M.", "J. L. Lucio", "" ], [ "Pestieau", "J.", "" ] ]
We address the problem of properly defining the $W^{\pm}, Z^0$ propagator in the resonance region. Particular attention is paid to the longitudinal piece of this propagator. We also discuss the related renormalization procedures and the unitarity property.
hep-ph/0507251
Krzysztof Golec-Biernat
K. Golec-Biernat
Theoretical review of diffractive phenomena
plenary presentation at the Baryon04, 25-29 October 2004, Palaiseau, France
Nucl.Phys.A755:133-142,2005
10.1016/j.nuclphysa.2005.03.116
null
hep-ph
null
We review QCD based descriptions of diffractive deep inelastic scattering emphasising the role of models with parton saturation. These models provide natural explanation of such experimentally observed facts as the constant ratio of the diffractive and total cross sections as a function of the Bjorken variable, and R...
[ { "created": "Thu, 21 Jul 2005 08:17:42 GMT", "version": "v1" } ]
2008-11-26
[ [ "Golec-Biernat", "K.", "" ] ]
We review QCD based descriptions of diffractive deep inelastic scattering emphasising the role of models with parton saturation. These models provide natural explanation of such experimentally observed facts as the constant ratio of the diffractive and total cross sections as a function of the Bjorken variable, and Reg...
1211.1014
Kristjan Kannike
Genevi\`eve B\'elanger, Kristjan Kannike, Alexander Pukhov and Martti Raidal
$Z_3$ Scalar Singlet Dark Matter
16 pages, 7 figures, metastability bounds added, conclusions unchanged, version accepted by JCAP
null
10.1088/1475-7516/2013/01/022
LAPTH-049/12
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the minimal scalar singlet dark matter stabilised by a $Z_3$ symmetry. Due to the cubic term in the scalar potential, semi-annihilations, besides annihilations, contribute to the dark matter relic density. Unlike in the $Z_2$ case, the dark matter spin independent direct detection cross section is no more...
[ { "created": "Mon, 5 Nov 2012 21:00:01 GMT", "version": "v1" }, { "created": "Thu, 10 Jan 2013 11:42:21 GMT", "version": "v2" } ]
2015-06-12
[ [ "Bélanger", "Geneviève", "" ], [ "Kannike", "Kristjan", "" ], [ "Pukhov", "Alexander", "" ], [ "Raidal", "Martti", "" ] ]
We consider the minimal scalar singlet dark matter stabilised by a $Z_3$ symmetry. Due to the cubic term in the scalar potential, semi-annihilations, besides annihilations, contribute to the dark matter relic density. Unlike in the $Z_2$ case, the dark matter spin independent direct detection cross section is no more l...
2202.10957
Andre Hoang
Miguel A. Benitez-Rathgeb, Diogo Boito, Andre H. Hoang, Matthias Jamin
Reconciling the Contour-Improved and Fixed-Order Approaches for $\tau$ Hadronic Spectral Moments I: Renormalon-Free Gluon Condensate Scheme
49 pages, 5 figures; Sec. 5.3 added; version published in the Journal of High Energy Physics
null
10.1007/JHEP07(2022)016
UWThPh-2022-2
hep-ph
http://creativecommons.org/licenses/by/4.0/
We propose a simple and easy-to-implement scheme for a renormalon-free gluon condensate (GC) matrix element, which is analogous to implementations of short-distance heavy-quark mass renormalization schemes existing in the literature already for a long time. Because the scheme is based on a perturbative subtraction at...
[ { "created": "Tue, 22 Feb 2022 14:56:55 GMT", "version": "v1" }, { "created": "Sun, 3 Jul 2022 19:53:46 GMT", "version": "v2" } ]
2022-07-13
[ [ "Benitez-Rathgeb", "Miguel A.", "" ], [ "Boito", "Diogo", "" ], [ "Hoang", "Andre H.", "" ], [ "Jamin", "Matthias", "" ] ]
We propose a simple and easy-to-implement scheme for a renormalon-free gluon condensate (GC) matrix element, which is analogous to implementations of short-distance heavy-quark mass renormalization schemes existing in the literature already for a long time. Because the scheme is based on a perturbative subtraction at t...
hep-ph/0211306
Andriy Kurylov
A. Kurylov, M.J. Ramsey-Musolf, P. Vogel
Radiative corrections to low energy neutrino reactions
23 pages, 5 figures
Phys.Rev. C67 (2003) 035502
10.1103/PhysRevC.67.035502
null
hep-ph nucl-th
null
We show that the radiative corrections to charged current (CC) nuclear reactions with an electron(positron) in the final state are described by a universal function. The consistency of our treatment of the radiative corrections with the procedure used to extract the value of the axial coupling constant $g_A$ is discu...
[ { "created": "Tue, 19 Nov 2002 23:04:23 GMT", "version": "v1" } ]
2009-11-07
[ [ "Kurylov", "A.", "" ], [ "Ramsey-Musolf", "M. J.", "" ], [ "Vogel", "P.", "" ] ]
We show that the radiative corrections to charged current (CC) nuclear reactions with an electron(positron) in the final state are described by a universal function. The consistency of our treatment of the radiative corrections with the procedure used to extract the value of the axial coupling constant $g_A$ is discuss...
1206.6675
Matthias Steinhauser
Alexander Kurz, Matthias Steinhauser, Nikolai Zerf
Decoupling constant for $\alpha_s$ and the effective gluon-Higgs coupling to three loops in supersymmetric QCD
21 pages, 5 figures, v2: figure with Feynman diagrams added, references added
JHEP 1207 (2012) 138
10.1007/JHEP07(2012)138
SFB/CPP-12-30; TTP12-22; LPN12-068
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We compute the three-loop QCD corrections to the decoupling constant for $\alpha_s$ which relates the Minimal Supersymmetric Standard Model to Quantum Chromodynamics with five or six active flavours. The new results can be used to study the stability of $\alpha_s$ evaluated at a high scale from the knowledge of its v...
[ { "created": "Thu, 28 Jun 2012 13:16:38 GMT", "version": "v1" }, { "created": "Fri, 14 Sep 2012 10:22:17 GMT", "version": "v2" } ]
2017-08-23
[ [ "Kurz", "Alexander", "" ], [ "Steinhauser", "Matthias", "" ], [ "Zerf", "Nikolai", "" ] ]
We compute the three-loop QCD corrections to the decoupling constant for $\alpha_s$ which relates the Minimal Supersymmetric Standard Model to Quantum Chromodynamics with five or six active flavours. The new results can be used to study the stability of $\alpha_s$ evaluated at a high scale from the knowledge of its val...
0909.4511
Jonas Mureika
J. R. Mureika
Constraints on vector unparticle physics from cosmic censorship
19 pp, LaTeX; 4 figs (pdf); enhanced discussion and references; to appear in IJTP
Int. J. Theor. Phys. 51, 1259-1267 (2012)
10.1007/s10773-011-1001-x
null
hep-ph gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Vector unparticle couplings to standard model fields produce repulsive corrections to gravity. From a general relativistic perspective, this leads to an effective Reissner-Nordstr\"om-like metric whose "charge" is a function of the unparticle coupling constant $\lambda$, and therefore can admit naked singularities. R...
[ { "created": "Thu, 24 Sep 2009 18:44:10 GMT", "version": "v1" }, { "created": "Mon, 17 Oct 2011 16:39:13 GMT", "version": "v2" } ]
2015-05-14
[ [ "Mureika", "J. R.", "" ] ]
Vector unparticle couplings to standard model fields produce repulsive corrections to gravity. From a general relativistic perspective, this leads to an effective Reissner-Nordstr\"om-like metric whose "charge" is a function of the unparticle coupling constant $\lambda$, and therefore can admit naked singularities. Req...
2108.08479
Yan-Qing Zhao
Yan-Qing Zhao and Defu Hou
Vector meson spectral function in a dynamical AdS/QCD model
null
null
10.1140/epjc/s10052-022-11065-7
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
By using gauge/gravity duality, we calculate the spectral function of the heavy vector mesons with the presence of an intense magnetic field in a hot and dense medium. The results show that, a general conclusion, as the increases of magnetic field, chemical potential and temperature, the height of the peak of the spe...
[ { "created": "Thu, 19 Aug 2021 03:49:00 GMT", "version": "v1" }, { "created": "Mon, 20 Jun 2022 09:25:30 GMT", "version": "v2" }, { "created": "Mon, 6 Feb 2023 02:10:56 GMT", "version": "v3" } ]
2023-02-07
[ [ "Zhao", "Yan-Qing", "" ], [ "Hou", "Defu", "" ] ]
By using gauge/gravity duality, we calculate the spectral function of the heavy vector mesons with the presence of an intense magnetic field in a hot and dense medium. The results show that, a general conclusion, as the increases of magnetic field, chemical potential and temperature, the height of the peak of the spect...
0802.4228
Carl Albright
Carl H. Albright and Mu-Chun Chen
Lepton Flavor Violation in Predictive Supersymmetric GUT Models
Published version: 25 pages including 11 figures; acknowledgment, references, and note added with minor changes from v2
Phys.Rev.D77:113010,2008
10.1103/PhysRevD.77.113010
FERMILAB-Pub-08-038-T, UCI-TR-2008-8
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
There have been many theoretical models constructed which aim to explain the neutrino masses and mixing patterns. While many of the models will be eliminated once more accurate determinations of the mixing parameters, especially $\sin^2 2\theta_{13}$, are obtained, charged lepton flavor violation (LFV) experiments ar...
[ { "created": "Thu, 28 Feb 2008 16:53:14 GMT", "version": "v1" }, { "created": "Wed, 12 Mar 2008 16:48:39 GMT", "version": "v2" }, { "created": "Fri, 20 Jun 2008 17:15:16 GMT", "version": "v3" } ]
2008-11-26
[ [ "Albright", "Carl H.", "" ], [ "Chen", "Mu-Chun", "" ] ]
There have been many theoretical models constructed which aim to explain the neutrino masses and mixing patterns. While many of the models will be eliminated once more accurate determinations of the mixing parameters, especially $\sin^2 2\theta_{13}$, are obtained, charged lepton flavor violation (LFV) experiments are ...
hep-ph/0301038
Yu-Feng Zhou
Harald Fritzsch and Yu-Feng Zhou
The gluonic B and J/psi decays into the eta' meson
8 pages, ReVTeX4, 2 figures reference added, version to appear in Phys.Rev.D
Phys.Rev. D68 (2003) 034015
10.1103/PhysRevD.68.034015
LMU 03-20
hep-ph
null
The inclusive and exclusive B decays into the eta' meson plus others are investigated in a model based on the QCD anomaly. The invariant mass distribution is discussed. The constraint of the effective coupling is obtained from the data of the exclusive decay modes. The branching ratio of J/psi -> eta'eta gamma is pre...
[ { "created": "Tue, 7 Jan 2003 15:38:43 GMT", "version": "v1" }, { "created": "Mon, 13 Jan 2003 16:06:17 GMT", "version": "v2" }, { "created": "Thu, 3 Jul 2003 14:06:57 GMT", "version": "v3" } ]
2009-11-10
[ [ "Fritzsch", "Harald", "" ], [ "Zhou", "Yu-Feng", "" ] ]
The inclusive and exclusive B decays into the eta' meson plus others are investigated in a model based on the QCD anomaly. The invariant mass distribution is discussed. The constraint of the effective coupling is obtained from the data of the exclusive decay modes. The branching ratio of J/psi -> eta'eta gamma is predi...
1011.6662
Ivo de Medeiros Varzielas
Ivo de Medeiros Varzielas, Luca Merlo
Ultraviolet Completion of Flavour Models
18 pages, 8 figures
JHEP 1102:062,2011
10.1007/JHEP02(2011)062
DO-TH 10/21, TUM-HEP-776/10
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Effective Flavour Models do not address questions related to the nature of the fundamental renormalisable theory at high energies. We study the ultraviolet completion of Flavour Models, which in general has the advantage of improving the predictivity of the effective models. In order to illustrate the important featu...
[ { "created": "Tue, 30 Nov 2010 20:10:12 GMT", "version": "v1" } ]
2011-03-18
[ [ "Varzielas", "Ivo de Medeiros", "" ], [ "Merlo", "Luca", "" ] ]
Effective Flavour Models do not address questions related to the nature of the fundamental renormalisable theory at high energies. We study the ultraviolet completion of Flavour Models, which in general has the advantage of improving the predictivity of the effective models. In order to illustrate the important feature...
2207.02789
Aleksey Rusov
Oliver Atkinson, Matthew Black, Christoph Englert, Alexander Lenz, and Aleksey Rusov
MUonE, muon $g-2$ and electroweak precision constraints within 2HDMs
11 pages, 5 figures, 3 tables
null
10.1103/PhysRevD.106.115031
SI-HEP-2022-15, P3H-22-070
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
Two Higgs doublet models are attractive scenarios for physics beyond the Standard Model. In particular, lepton-specific manifestations remain contenders to explain the observed discrepancy between the anomalous magnetic moment of the muon $a_\mu$ predicted within the Standard Model and recent observations at Fermilab...
[ { "created": "Wed, 6 Jul 2022 16:24:35 GMT", "version": "v1" } ]
2023-01-11
[ [ "Atkinson", "Oliver", "" ], [ "Black", "Matthew", "" ], [ "Englert", "Christoph", "" ], [ "Lenz", "Alexander", "" ], [ "Rusov", "Aleksey", "" ] ]
Two Higgs doublet models are attractive scenarios for physics beyond the Standard Model. In particular, lepton-specific manifestations remain contenders to explain the observed discrepancy between the anomalous magnetic moment of the muon $a_\mu$ predicted within the Standard Model and recent observations at Fermilab a...
1302.4325
Andrzej Siodmok
Manuel B\"ahr (Blue Yonder in Karlsruhe), Miroslav Myska (CTU in Prague), Michael H. Seymour, Andrzej Siodmok (University of Manchester)
Extracting sigma_effective from the CDF gamma+3jets measurement
19 pages
null
10.1007/JHEP03(2013)129
MAN/HEP/2013/02, MCnet-13-01
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In their 1997 paper, CDF measured sigma_effective, the normalization factor that relates the cross section for double parton scattering to the product of the inclusive cross sections of the two individual scatters, in a model in which they are assumed to be independent. In his 2007 paper, Treleani pointed out that CD...
[ { "created": "Mon, 18 Feb 2013 15:56:30 GMT", "version": "v1" } ]
2015-06-15
[ [ "Bähr", "Manuel", "", "Blue Yonder in Karlsruhe" ], [ "Myska", "Miroslav", "", "CTU in\n Prague" ], [ "Seymour", "Michael H.", "", "University of Manchester" ], [ "Siodmok", "Andrzej", "", "University of Manchester" ] ]
In their 1997 paper, CDF measured sigma_effective, the normalization factor that relates the cross section for double parton scattering to the product of the inclusive cross sections of the two individual scatters, in a model in which they are assumed to be independent. In his 2007 paper, Treleani pointed out that CDF ...
hep-ph/0212306
Ed Berger
E. L. Berger, M. Klasen, and T. M. P. Tait
Erratum: Next-to-leading order supersymmetric QCD predictions for associated production of gauginos and gluinos [Phys. Rev. D 62, 095014 (2000)]
3 pages, latex, 4 figures
Phys.Rev.D67:099901,2003
10.1103/PhysRevD.67.099901
null
hep-ph
null
Errors in the published version of the paper are corrected, and new figures are provided.
[ { "created": "Thu, 19 Dec 2002 20:26:37 GMT", "version": "v1" }, { "created": "Wed, 26 Mar 2003 18:58:27 GMT", "version": "v2" } ]
2008-11-26
[ [ "Berger", "E. L.", "" ], [ "Klasen", "M.", "" ], [ "Tait", "T. M. P.", "" ] ]
Errors in the published version of the paper are corrected, and new figures are provided.
0904.3067
Leonid Glozman
L. Ya. Glozman, A. V. Nefediev
Chiral symmetry, the angular content of the vector current in QED and QCD, and the holographic description of hadrons
4 pp. The title has been changed. Implications for OPE and holographic description of mesons have been added. To appear in PRD
Phys.Rev.D80:057901,2009
10.1103/PhysRevD.80.057901
null
hep-ph hep-lat hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We perform a general chiral symmetry and unitarity based analysis of a local process of the fermion-antifermion creation from the vacuum by a high-energy photon as well as an explicit partial wave analysis of the vector current in QED and QCD. It turns out that such a local process proceeds necessarily via a certain ...
[ { "created": "Mon, 20 Apr 2009 16:10:00 GMT", "version": "v1" }, { "created": "Fri, 24 Apr 2009 16:40:22 GMT", "version": "v2" }, { "created": "Fri, 4 Sep 2009 09:21:58 GMT", "version": "v3" } ]
2009-11-06
[ [ "Glozman", "L. Ya.", "" ], [ "Nefediev", "A. V.", "" ] ]
We perform a general chiral symmetry and unitarity based analysis of a local process of the fermion-antifermion creation from the vacuum by a high-energy photon as well as an explicit partial wave analysis of the vector current in QED and QCD. It turns out that such a local process proceeds necessarily via a certain su...
1311.3744
H\'ector Novales-S\'anchez
A. Moyotl, H. Novales-S\'anchez, J. J. Toscano, and E. S. Tututi
One-loop nonbirefringent effects on the electromagnetic vertex in the Standard Model Extension
11 pages, 2 figures, some references added
Int.J.Mod.Phys. A29 (2014) 22, 1450107
10.1142/S0217751X14501073
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Lorentz violation emerged from a fundamental description of nature may impact, at low energies, the Maxwell sector, so that contributions from such new physics to the electromagnetic vertex would be induced. Particularly, nonbirefringent $CPT$-even effects from the electromagnetic sector modified by the Lorentz- and ...
[ { "created": "Fri, 15 Nov 2013 07:03:09 GMT", "version": "v1" }, { "created": "Tue, 2 Sep 2014 15:43:44 GMT", "version": "v2" } ]
2014-09-03
[ [ "Moyotl", "A.", "" ], [ "Novales-Sánchez", "H.", "" ], [ "Toscano", "J. J.", "" ], [ "Tututi", "E. S.", "" ] ]
Lorentz violation emerged from a fundamental description of nature may impact, at low energies, the Maxwell sector, so that contributions from such new physics to the electromagnetic vertex would be induced. Particularly, nonbirefringent $CPT$-even effects from the electromagnetic sector modified by the Lorentz- and $C...
hep-ph/9903406
null
Micheal S. Berger and Biswajoy Brahmachari (Indiana U)
Leptogenesis and Yukawa textures
Revised version, to appear in Phys. ReV. D
Phys.Rev.D60:073009,1999
10.1103/PhysRevD.60.073009
null
hep-ph
null
We study a set of textures giving rise to correct masses and mixings of the charged fermions in the context of leptogenesis. The Dirac neutrino texture pattern is assumed to be identical with the up quark texture. The heavy Majonana neutrino mass matrix is obtained by inverting the type-I see-saw formula and using th...
[ { "created": "Thu, 18 Mar 1999 21:34:12 GMT", "version": "v1" }, { "created": "Sat, 17 Jul 1999 19:31:13 GMT", "version": "v2" } ]
2011-07-19
[ [ "Berger", "Micheal S.", "", "Indiana U" ], [ "Brahmachari", "Biswajoy", "", "Indiana U" ] ]
We study a set of textures giving rise to correct masses and mixings of the charged fermions in the context of leptogenesis. The Dirac neutrino texture pattern is assumed to be identical with the up quark texture. The heavy Majonana neutrino mass matrix is obtained by inverting the type-I see-saw formula and using the ...
hep-ph/0310293
Hanqing Zheng
H. Q. Zheng, Z. Y. Zhou, G. Y. Qin, Z. G. Xiao, J. J. Wang and N. Wu
The $\kappa$ resonance in s wave $\pi K$ scatterings
Minor corrections made on discussions and typos. 1 ref. added version to appear in Nuclear Physics A
Nucl.Phys.A733:235-261,2004
10.1016/j.nuclphysa.2003.12.021
null
hep-ph
null
A new unitarization approach incorporated with chiral symmetry is established and applied to study the $\pi K$ elastic scatterings. We demonstrate that the $\kappa$ resonance exists, if the scattering length parameter in the I=1/2, J=0 channel does not deviate much from its value predicted by chiral perturbation theo...
[ { "created": "Sun, 26 Oct 2003 15:07:36 GMT", "version": "v1" }, { "created": "Thu, 30 Oct 2003 14:49:19 GMT", "version": "v2" }, { "created": "Sun, 21 Dec 2003 11:17:28 GMT", "version": "v3" } ]
2008-11-26
[ [ "Zheng", "H. Q.", "" ], [ "Zhou", "Z. Y.", "" ], [ "Qin", "G. Y.", "" ], [ "Xiao", "Z. G.", "" ], [ "Wang", "J. J.", "" ], [ "Wu", "N.", "" ] ]
A new unitarization approach incorporated with chiral symmetry is established and applied to study the $\pi K$ elastic scatterings. We demonstrate that the $\kappa$ resonance exists, if the scattering length parameter in the I=1/2, J=0 channel does not deviate much from its value predicted by chiral perturbation theory...
1908.10164
Hagop Sazdjian
Wolfgang Lucha, Dmitri Melikhov, Hagop Sazdjian
Cluster reducibility of multiquark operators
16 pages, 12 figures. A sentence has been changed in the abstract. A few minor changes in the main text
Phys. Rev. D 100, 094017 (2019)
10.1103/PhysRevD.100.094017
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is shown that the multiquark gauge-invariant operators can, in general, be decomposed into combinations of products of ordinary hadronic operators, exhibiting their cluster reducibility. The latter property inhibits the formation of completely compact multiquark bound states. Multiquark operators still play a cruc...
[ { "created": "Tue, 27 Aug 2019 12:48:36 GMT", "version": "v1" }, { "created": "Fri, 29 Nov 2019 11:07:09 GMT", "version": "v2" } ]
2019-12-02
[ [ "Lucha", "Wolfgang", "" ], [ "Melikhov", "Dmitri", "" ], [ "Sazdjian", "Hagop", "" ] ]
It is shown that the multiquark gauge-invariant operators can, in general, be decomposed into combinations of products of ordinary hadronic operators, exhibiting their cluster reducibility. The latter property inhibits the formation of completely compact multiquark bound states. Multiquark operators still play a crucia...
1001.2997
Eberhard Klempt
E. Klempt
Nucleon Excitations
QNP-2009, Beijing, invited talk
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The mass pattern of nucleon and $\Delta$ resonances is compared with predictions based on quark models, the Skyrme model, AdS/QCD, and the conjecture of chiral symmetry restoration.
[ { "created": "Mon, 18 Jan 2010 10:07:59 GMT", "version": "v1" } ]
2010-01-19
[ [ "Klempt", "E.", "" ] ]
The mass pattern of nucleon and $\Delta$ resonances is compared with predictions based on quark models, the Skyrme model, AdS/QCD, and the conjecture of chiral symmetry restoration.
hep-ph/0112081
Thomas Gehrmann
L.W.Garland, T.Gehrmann, E.W.N.Glover, A.Koukoutsakis, E.Remiddi
The Two-Loop QCD Matrix Element for $e^+e^- \to 3$ Jets
52 pages, LaTeX
Nucl.Phys.B627:107-188,2002
10.1016/S0550-3213(02)00057-3
IPPP/01/59, DCTP/01/118, CERN-TH/2001-348
hep-ph
null
We compute the ${\cal O}(\alpha_s^3)$ virtual QCD corrections to the $\gamma^*\to q\bar q g$ matrix element arising from the interference of the two-loop with the tree-level amplitude and from the self-interference of the one-loop amplitude. The calculation is performed by reducing all loop integrals appearing in the...
[ { "created": "Wed, 5 Dec 2001 16:02:50 GMT", "version": "v1" } ]
2010-04-06
[ [ "Garland", "L. W.", "" ], [ "Gehrmann", "T.", "" ], [ "Glover", "E. W. N.", "" ], [ "Koukoutsakis", "A.", "" ], [ "Remiddi", "E.", "" ] ]
We compute the ${\cal O}(\alpha_s^3)$ virtual QCD corrections to the $\gamma^*\to q\bar q g$ matrix element arising from the interference of the two-loop with the tree-level amplitude and from the self-interference of the one-loop amplitude. The calculation is performed by reducing all loop integrals appearing in the t...
2203.15433
Abhisek Saha
Abhisek Saha, Debasis Dan, and Soma Sanyal
Machine Learning model driven prediction of the initial geometry in Heavy-Ion Collision experiments
31 pages, 13 figures
Phys. Rev. C 106, 014901 (2022)
10.1103/PhysRevC.106.014901
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We demonstrate high prediction accuracy of three important properties that determine the initial geometry of the heavy-ion collision (HIC) experiments by using supervised Machine Learning (ML) methods. These properties are the impact parameter, the eccentricity and the participant eccentricity. Though ML techniques h...
[ { "created": "Tue, 29 Mar 2022 10:58:31 GMT", "version": "v1" }, { "created": "Tue, 22 Nov 2022 11:46:18 GMT", "version": "v2" } ]
2022-11-23
[ [ "Saha", "Abhisek", "" ], [ "Dan", "Debasis", "" ], [ "Sanyal", "Soma", "" ] ]
We demonstrate high prediction accuracy of three important properties that determine the initial geometry of the heavy-ion collision (HIC) experiments by using supervised Machine Learning (ML) methods. These properties are the impact parameter, the eccentricity and the participant eccentricity. Though ML techniques hav...
1509.05391
Cem Salih Un
Shaaban Khalil and Cem Salih Un
Muon Anomalous Magnetic Moment in SUSY B-L Model with Inverse Seesaw
4 pages, 3 Figures
null
10.1016/j.physletb.2016.10.035
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivated by the tension between the Higgs mass and muon g-2 in minimal supersymmetric standard model (MSSM), we analyze the muon g-2 in supersymmertic B-L extension of the standard model (BLSSM) with inverse seesaw mechanism. In this model, the Higgs mass receives extra important radiative corrections proportional t...
[ { "created": "Thu, 17 Sep 2015 19:49:01 GMT", "version": "v1" } ]
2016-10-26
[ [ "Khalil", "Shaaban", "" ], [ "Un", "Cem Salih", "" ] ]
Motivated by the tension between the Higgs mass and muon g-2 in minimal supersymmetric standard model (MSSM), we analyze the muon g-2 in supersymmertic B-L extension of the standard model (BLSSM) with inverse seesaw mechanism. In this model, the Higgs mass receives extra important radiative corrections proportional to ...
hep-ph/9411337
Chung Kao
Chung Kao
Parity Violation in Top Quark Pair Production at the Fermilab Tevatron Collider
LaTeX, 17 pages, 5 figures, Figures 2-5 included, Figure 1 (Feynman Diagrams) available upon request
Phys.Lett. B348 (1995) 155-162
10.1016/0370-2693(95)00112-X
UR-1383, ER-40685-832
hep-ph
null
The leading weak corrections to the production of top quark pairs via $q\bar{q} \to t\bar{t}$ in $p\bar{p}$ collisions are evaluated. The chromo-anapole form factor of the top quark and effects of parity violation are studied in the Standard Model (SM) and the Minimal Supersymmetric Model (MSSM). The parity violation...
[ { "created": "Fri, 18 Nov 1994 22:34:48 GMT", "version": "v1" } ]
2009-10-28
[ [ "Kao", "Chung", "" ] ]
The leading weak corrections to the production of top quark pairs via $q\bar{q} \to t\bar{t}$ in $p\bar{p}$ collisions are evaluated. The chromo-anapole form factor of the top quark and effects of parity violation are studied in the Standard Model (SM) and the Minimal Supersymmetric Model (MSSM). The parity violation e...
hep-ph/9906550
Scott Griffiths
S. Griffiths and D. A. Ross
Studying the Perturbative Reggeon
LaTeX, 21 pages, 16 figures
Eur.Phys.J.C12:277-286,2000
10.1007/s100529900240
SHEP-99/08
hep-ph
null
We consider the flavour non-singlet Reggeon within the context of perturbative QCD. This consists of ladders built out of ``reggeized'' quarks. We propose a method for the numerical solution of the integro-differential equation for the amplitude describing the exchange of such a Reggeon. The solution is known to have...
[ { "created": "Wed, 30 Jun 1999 14:18:53 GMT", "version": "v1" } ]
2011-09-13
[ [ "Griffiths", "S.", "" ], [ "Ross", "D. A.", "" ] ]
We consider the flavour non-singlet Reggeon within the context of perturbative QCD. This consists of ladders built out of ``reggeized'' quarks. We propose a method for the numerical solution of the integro-differential equation for the amplitude describing the exchange of such a Reggeon. The solution is known to have a...
1511.03220
Silvia Pisano
Silvia Pisano and Marco Radici
Di-hadron fragmentation and mapping of the nucleon structure
19 pages, 18 figures. Contribution to the EPJA Special Issue on "3D Structure of the Nucleon"
null
10.1140/epja/i2016-16155-5
null
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The fragmentation of a colored parton directly into a pair of colorless hadrons is a non-perturbative mechanism that offers important insights into the nucleon structure. Di-hadron fragmentation functions can be extracted from semi-inclusive electron-positron annihilation data. They also appear in observables describ...
[ { "created": "Tue, 10 Nov 2015 18:34:39 GMT", "version": "v1" } ]
2016-07-20
[ [ "Pisano", "Silvia", "" ], [ "Radici", "Marco", "" ] ]
The fragmentation of a colored parton directly into a pair of colorless hadrons is a non-perturbative mechanism that offers important insights into the nucleon structure. Di-hadron fragmentation functions can be extracted from semi-inclusive electron-positron annihilation data. They also appear in observables describin...
2310.07634
Quan-Feng Wu
Quan-feng Wu and Zhao Li
FeAmGen.jl: A Julia Program for Feynman Amplitude Generation
39 pages, 9 figures, the version accepted by Comput. Phys. Commun, the corresponding codes are available at https://code.ihep.ac.cn/IHEP-Multiloop/FeAmGen.jl.git
Comput.Phys.Commun. 301 (2024) 109230
10.1016/j.cpc.2024.109230
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
FeAmGen.jl is a Julia package designed to generate Feynman diagrams and their corresponding amplitudes for various processes in particle physics. Utilizing the models in the Universal Feynman Output (UFO) format and Qgraf for diagram generation, it also employs SymEngine.jl and Form for amplitude generation. Addition...
[ { "created": "Wed, 11 Oct 2023 16:28:57 GMT", "version": "v1" }, { "created": "Mon, 6 May 2024 11:36:57 GMT", "version": "v2" } ]
2024-05-10
[ [ "Wu", "Quan-feng", "" ], [ "Li", "Zhao", "" ] ]
FeAmGen.jl is a Julia package designed to generate Feynman diagrams and their corresponding amplitudes for various processes in particle physics. Utilizing the models in the Universal Feynman Output (UFO) format and Qgraf for diagram generation, it also employs SymEngine.jl and Form for amplitude generation. Additional...
hep-ph/9409420
Jihn E. Kim
Jihn E. Kim
Cosmological Constant and Supergravity Soft Terms
(talk presented at SUSY94, Ann Arbor, May, 1994, and Frontiers in QFT, Beijing, June, 1994), Latex file 11 pages, 3 figures not included
null
null
null
hep-ph
null
In supergravity models, the quantum correction to the vacuum energy can be of order $M_I^4$, if the cutoff is of order the Planck mass $M^2_{P}$ and $Str\ {\cal M}^2\ne 0$. Therefore, the tree level cosmological constant must be nonzero (probably negative). Since the current practice of calculating soft parameters in...
[ { "created": "Tue, 27 Sep 1994 01:16:37 GMT", "version": "v1" } ]
2009-09-25
[ [ "Kim", "Jihn E.", "" ] ]
In supergravity models, the quantum correction to the vacuum energy can be of order $M_I^4$, if the cutoff is of order the Planck mass $M^2_{P}$ and $Str\ {\cal M}^2\ne 0$. Therefore, the tree level cosmological constant must be nonzero (probably negative). Since the current practice of calculating soft parameters in s...
hep-ph/0103106
Hans-Christian Pauli
Hans-Christian Pauli (MPI Kernphysik, Heidelberg)
A compendium of light-cone quantization
20 pages, no figures, 6 tables, 4 references
Nucl.Phys.Proc.Suppl. 90 (2000) 259-272
10.1016/S0920-5632(00)00904-X
null
hep-ph
null
For the purpose of consistent notation and easy reference the most important relations in light-cone quantization are compiled from a recent review (Brodsky, Pauli Pinsky, Physics Reports 301 (1998) 299), where all further details and derivations can be found. Some further typos are removed.
[ { "created": "Sat, 10 Mar 2001 16:15:31 GMT", "version": "v1" } ]
2009-11-07
[ [ "Pauli", "Hans-Christian", "", "MPI Kernphysik, Heidelberg" ] ]
For the purpose of consistent notation and easy reference the most important relations in light-cone quantization are compiled from a recent review (Brodsky, Pauli Pinsky, Physics Reports 301 (1998) 299), where all further details and derivations can be found. Some further typos are removed.
1402.1753
Hyun-Chul Kim
Sang-Ho Kim, Atsushi Hosaka, and Hyun-Chul Kim
Effects of $N(2000)\, 5/2^+$, $N(2060)\,5/2^-$, $N(2120)\,3/2^-$, and $N(2190)\,7/2^-$ on $K^*\Lambda$ photoproduction
16 pages, 14 figures
null
10.1103/PhysRevD.90.014021
INHA-NTG-02/2014
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We reinvestigate $K^*\Lambda(1116)$ photoproduction off the nucleon target, based on an effective Lagrangian approach. We include higher nucleon resonances such as $N(2000)\, 5/2^+$, $N(2060)\,5/2^-$, $N(2120)\,3/2^-$, and $N(2190)\,7/2^-$, of which the data are taken from the 2012 edition of Review of Paritcle Physi...
[ { "created": "Fri, 7 Feb 2014 20:33:48 GMT", "version": "v1" }, { "created": "Sat, 14 Jun 2014 07:28:57 GMT", "version": "v2" } ]
2015-06-18
[ [ "Kim", "Sang-Ho", "" ], [ "Hosaka", "Atsushi", "" ], [ "Kim", "Hyun-Chul", "" ] ]
We reinvestigate $K^*\Lambda(1116)$ photoproduction off the nucleon target, based on an effective Lagrangian approach. We include higher nucleon resonances such as $N(2000)\, 5/2^+$, $N(2060)\,5/2^-$, $N(2120)\,3/2^-$, and $N(2190)\,7/2^-$, of which the data are taken from the 2012 edition of Review of Paritcle Physics...
hep-ph/0409097
Jonathan Thomas Lenaghan
Adrian Dumitru, Jonathan T. Lenaghan
Renormalized Polyakov Loops, Matrix Models and the Gross-Witten Point
9 pages, 3 figures, Combined contribution to proceedings of Strong and Electroweak Matter 2004 (SEWM 2004), Helsinki, Finland, 16-19 June 2004
null
10.1142/9789812702159_0022
null
hep-ph hep-lat hep-th
null
The values of renormalized Polyakov loops in the three lowest representations of SU(3) were measured numerically on the lattice. We find that in magnitude, condensates respect the large-N property of factorization. In several ways, the deconfining phase transition for N=3 appears to be like that in the N=infinity mat...
[ { "created": "Wed, 8 Sep 2004 17:42:16 GMT", "version": "v1" } ]
2017-08-23
[ [ "Dumitru", "Adrian", "" ], [ "Lenaghan", "Jonathan T.", "" ] ]
The values of renormalized Polyakov loops in the three lowest representations of SU(3) were measured numerically on the lattice. We find that in magnitude, condensates respect the large-N property of factorization. In several ways, the deconfining phase transition for N=3 appears to be like that in the N=infinity matri...
1002.4633
Howard Baer
Howard Baer, Senarath de Alwis, Kevin Givens, Shibi Rajagopalan, Heaya Summy
Gaugino Anomaly Mediated SUSY Breaking: phenomenology and prospects for the LHC
30 pages including 14 .eps figures
JHEP 1005:069,2010
10.1007/JHEP05(2010)069
null
hep-ph hep-ex hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We examine the supersymmetry phenomenology of a novel scenario of supersymmetry (SUSY) breaking which we call Gaugino Anomaly Mediation, or inoAMSB. This is suggested by recent work on the phenomenology of flux compactified type IIB string theory. The essential features of this scenario are that the gaugino masses ar...
[ { "created": "Wed, 24 Feb 2010 21:13:16 GMT", "version": "v1" } ]
2014-11-20
[ [ "Baer", "Howard", "" ], [ "de Alwis", "Senarath", "" ], [ "Givens", "Kevin", "" ], [ "Rajagopalan", "Shibi", "" ], [ "Summy", "Heaya", "" ] ]
We examine the supersymmetry phenomenology of a novel scenario of supersymmetry (SUSY) breaking which we call Gaugino Anomaly Mediation, or inoAMSB. This is suggested by recent work on the phenomenology of flux compactified type IIB string theory. The essential features of this scenario are that the gaugino masses are ...
1008.4779
Brett D. Altschul
Brett Altschul
Testing Photons' Bose-Einstein Statistics With Compton Scattering
8 pages
Phys.Rev.D82:101703,2010
10.1103/PhysRevD.82.101703
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is an empirical question whether photons always obey Bose-Einstein statistics, but devising and interpreting experimental tests of photon statistics can be a challenge. The nonrelativistic cross section for Compton scattering illustrates how a small admixture nu of wrong-sign statistics leads to a loss of gauge in...
[ { "created": "Fri, 27 Aug 2010 18:47:46 GMT", "version": "v1" } ]
2010-12-23
[ [ "Altschul", "Brett", "" ] ]
It is an empirical question whether photons always obey Bose-Einstein statistics, but devising and interpreting experimental tests of photon statistics can be a challenge. The nonrelativistic cross section for Compton scattering illustrates how a small admixture nu of wrong-sign statistics leads to a loss of gauge inva...