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hep-ph/0601120
Feng-Kun Guo
Feng-Kun Guo, Peng-Nian Shen, Huan-Ching Chiang, Rong-Gang Ping
On the structure of the pi pi invariant mass spectra of the Upsilon(4S)-->Upsilon(1S,2S) pi^+ pi^- decays
11 pages, 5 figures. Extended to include new data; title changed. Version accepted for publication in Phys. Lett. B
Phys.Lett.B658:27-32,2007
10.1016/j.physletb.2007.10.021
null
hep-ph hep-ex
null
We perform a model-independent analysis for recently reported data of the $\pi^+\pi^-$ invariant mass spectra in the $\Upsilon(4S)\to\Upsilon(1S,2S)\pi^+\pi^-$ decays and point out that there does exist a broad peak below 0.6 GeV in the data of the $\Upsilon(4S)\to\Upsilon(1S)\pi^+\pi^-$ decay, which is analogous to ...
[ { "created": "Mon, 16 Jan 2006 05:24:44 GMT", "version": "v1" }, { "created": "Sat, 21 Jan 2006 04:16:39 GMT", "version": "v2" }, { "created": "Thu, 20 Apr 2006 16:29:57 GMT", "version": "v3" }, { "created": "Fri, 21 Apr 2006 05:21:35 GMT", "version": "v4" }, { "c...
2008-11-26
[ [ "Guo", "Feng-Kun", "" ], [ "Shen", "Peng-Nian", "" ], [ "Chiang", "Huan-Ching", "" ], [ "Ping", "Rong-Gang", "" ] ]
We perform a model-independent analysis for recently reported data of the $\pi^+\pi^-$ invariant mass spectra in the $\Upsilon(4S)\to\Upsilon(1S,2S)\pi^+\pi^-$ decays and point out that there does exist a broad peak below 0.6 GeV in the data of the $\Upsilon(4S)\to\Upsilon(1S)\pi^+\pi^-$ decay, which is analogous to th...
0907.2008
S. Bhattacharyya
P. Guptaroy, Goutam Sau, S. K. Biswas, S. Bhattacharyya
Understanding the Characteristics of Multiple Production of Light Hadrons in Cu + Cu Interactions at Various RHIC Energies: A Model-based Analysis
35 pages, 14 Figures, 4 Tables; Title, Abstract and the text changed; To appear in Il Nuovo Cimento B
Nuovo Cim. B125:1071-1097,2010
10.1393/ncb/i2010-10913-4
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Experiments involving copper-copper collisions at the RHIC-BNL (USA) at energies $\sqrt{s_{NN}}$ = 22.5, 62 and 200 GeV have produced a vast amount of high-precision data which are to be analysed in the light of various competing models in the domain of multiparicle production scenario. We have chosen to analyse here...
[ { "created": "Sun, 12 Jul 2009 06:35:46 GMT", "version": "v1" }, { "created": "Wed, 4 Aug 2010 17:54:24 GMT", "version": "v2" } ]
2015-03-13
[ [ "Guptaroy", "P.", "" ], [ "Sau", "Goutam", "" ], [ "Biswas", "S. K.", "" ], [ "Bhattacharyya", "S.", "" ] ]
Experiments involving copper-copper collisions at the RHIC-BNL (USA) at energies $\sqrt{s_{NN}}$ = 22.5, 62 and 200 GeV have produced a vast amount of high-precision data which are to be analysed in the light of various competing models in the domain of multiparicle production scenario. We have chosen to analyse here t...
hep-ph/0502147
Mattias Blennow
Mattias Blennow, Tommy Ohlsson, Walter Winter
Damping signatures in future neutrino oscillation experiments
33 pages, 5 figures, LaTeX. Final version published in JHEP
JHEP0506:049,2005
10.1088/1126-6708/2005/06/049
null
hep-ph
null
We discuss the phenomenology of damping signatures in the neutrino oscillation probabilities, where either the oscillating terms or the probabilities can be damped. This approach is a possibility for tests of non-oscillation effects in future neutrino oscillation experiments, where we mainly focus on reactor and long...
[ { "created": "Wed, 16 Feb 2005 10:35:56 GMT", "version": "v1" }, { "created": "Wed, 17 Aug 2005 12:57:31 GMT", "version": "v2" } ]
2009-11-11
[ [ "Blennow", "Mattias", "" ], [ "Ohlsson", "Tommy", "" ], [ "Winter", "Walter", "" ] ]
We discuss the phenomenology of damping signatures in the neutrino oscillation probabilities, where either the oscillating terms or the probabilities can be damped. This approach is a possibility for tests of non-oscillation effects in future neutrino oscillation experiments, where we mainly focus on reactor and long-b...
hep-ph/0406010
Richard Francois
P. Bambade, M. Berggren, F. Richard and Z. Zhang
Experimental Implications for a Linear Collider of the SUSY Dark Matter Scenario
24 pages, 13 figures, Work presented at the International Conference on Linear Colliders (LCWS04), 19-23 April 2004, Le Carre des Sciences, Paris, France
null
null
LAL 04-20
hep-ph
null
This paper presents the detection issues for the lightest slepton \tilde{\tau}_1 at a future e^+e^- TeV collider given the dark matter constraints set on the SUSY mass spectrum by the WMAP results. It intends to illustrate the importance of an optimal detection of energetic electrons in the very forward region for an...
[ { "created": "Tue, 1 Jun 2004 13:46:16 GMT", "version": "v1" } ]
2016-09-06
[ [ "Bambade", "P.", "" ], [ "Berggren", "M.", "" ], [ "Richard", "F.", "" ], [ "Zhang", "Z.", "" ] ]
This paper presents the detection issues for the lightest slepton \tilde{\tau}_1 at a future e^+e^- TeV collider given the dark matter constraints set on the SUSY mass spectrum by the WMAP results. It intends to illustrate the importance of an optimal detection of energetic electrons in the very forward region for an e...
hep-ph/0103101
Gurjav Ganbold
G.V.Efimov and G.Ganbold
Analytic Confinement and Regge Trajectories
RevTeX, 16 pages, 3 figures and 2 tables
Phys.Rev. D65 (2002) 054012
10.1103/PhysRevD.65.054012
null
hep-ph
null
A simple relativistic quantum field model with the Yukawa-type interaction is considered to demonstrate that the analytic confinement of the constituent ("quarks") and carrier ("gluons") particles explains qualitatively the basic dynamical properties of the spectrum of mesons considered as two-particle stable bound s...
[ { "created": "Sat, 10 Mar 2001 00:47:55 GMT", "version": "v1" }, { "created": "Fri, 21 Dec 2001 09:17:17 GMT", "version": "v2" } ]
2009-11-07
[ [ "Efimov", "G. V.", "" ], [ "Ganbold", "G.", "" ] ]
A simple relativistic quantum field model with the Yukawa-type interaction is considered to demonstrate that the analytic confinement of the constituent ("quarks") and carrier ("gluons") particles explains qualitatively the basic dynamical properties of the spectrum of mesons considered as two-particle stable bound sta...
0811.2710
Vincent Mathieu
V. Mathieu, F. Buisseret, C. Semay, B. Silvestre-Brac
The Glueball Spectrum from Constituent Models
Invited talk at 'Selected Problems of Modern Theoretical Physics', Dubna June 23-27 2008. Talk at 'Confinement 8', Mainz, September 1-6 2008
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a model for odd-$C$ (negative charge parity) glueballs with three constituent gluons. The model is an extension of a previous study of two-gluon glueballs. We show that, even if spin-1 gluons seem to reproduce properly the lattice QCD spectrum for $C=+$ states, the extension for $C=-$ cannot match with the...
[ { "created": "Mon, 17 Nov 2008 13:56:53 GMT", "version": "v1" } ]
2008-11-18
[ [ "Mathieu", "V.", "" ], [ "Buisseret", "F.", "" ], [ "Semay", "C.", "" ], [ "Silvestre-Brac", "B.", "" ] ]
We present a model for odd-$C$ (negative charge parity) glueballs with three constituent gluons. The model is an extension of a previous study of two-gluon glueballs. We show that, even if spin-1 gluons seem to reproduce properly the lattice QCD spectrum for $C=+$ states, the extension for $C=-$ cannot match with the l...
hep-ph/0107098
Marcus Hutter
Marcus Hutter
Instantons in QCD: Theory and Application of the Instanton Liquid Model
100 pages, thesis translated into english
null
null
null
hep-ph
null
Numerical and anaytical studies of the instanton liquid model have allowed the determination of many hadronic parameters during the last 13 years. Most part of this thesis is devoted to the extension of the analytical methods. The meson correlation (polarization) functions are calculated in the instanton liquid model...
[ { "created": "Mon, 9 Jul 2001 18:59:07 GMT", "version": "v1" } ]
2007-05-23
[ [ "Hutter", "Marcus", "" ] ]
Numerical and anaytical studies of the instanton liquid model have allowed the determination of many hadronic parameters during the last 13 years. Most part of this thesis is devoted to the extension of the analytical methods. The meson correlation (polarization) functions are calculated in the instanton liquid model i...
hep-ph/0611156
Sreerup Raychaudhuri
Rohini M. Godbole, Santosh Kumar Rai, Sreerup Raychaudhuri
Graviton Resonances in E+ E- -> MU+ MU- at Linear Colliders with Beamstrahlung and ISR Effects
20 pages Latex, 7 eps figures
Eur.Phys.J.C50:979-990,2007
10.1140/epjc/s10052-007-0247-1
null
hep-ph
null
Electromagnetic radiation emitted by the colliding beams is expected to play an important role at the next generation of high energy e^+ e^- linear collider(s). Focusing on the simplest process e+e- -> mu+ mu-, we show that radiative effects like initial state radiation (ISR) and beamstrahlung can lead to greatly-enh...
[ { "created": "Sat, 11 Nov 2006 21:04:56 GMT", "version": "v1" } ]
2008-11-26
[ [ "Godbole", "Rohini M.", "" ], [ "Rai", "Santosh Kumar", "" ], [ "Raychaudhuri", "Sreerup", "" ] ]
Electromagnetic radiation emitted by the colliding beams is expected to play an important role at the next generation of high energy e^+ e^- linear collider(s). Focusing on the simplest process e+e- -> mu+ mu-, we show that radiative effects like initial state radiation (ISR) and beamstrahlung can lead to greatly-enhan...
hep-ph/0610143
Antonio Vairo
Nora Brambilla, Xavier Garcia i Tormo, Joan Soto, Antonio Vairo
The logarithmic contribution to the QCD static energy at NNNNLO
16 pages, 5 figures. Minor modifications. References added. Journal version
Phys.Lett.B647:185-193,2007
10.1016/j.physletb.2007.02.015
ANL-HEP-PR-06-76, IFUM-872-FT, UB-ECM-PF 06/27
hep-ph hep-lat
null
Using pNRQCD and known results for the field strength correlator, we calculate the ultrasoft contribution to the QCD static energy of a quark-antiquark pair at short distances at NNNNLO in alpha_s. At the same order, this provides the logarithmic terms of the singlet static potential in pNRQCD and the log alpha_s ter...
[ { "created": "Wed, 11 Oct 2006 18:43:48 GMT", "version": "v1" }, { "created": "Fri, 9 Feb 2007 16:19:08 GMT", "version": "v2" } ]
2010-11-04
[ [ "Brambilla", "Nora", "" ], [ "Tormo", "Xavier Garcia i", "" ], [ "Soto", "Joan", "" ], [ "Vairo", "Antonio", "" ] ]
Using pNRQCD and known results for the field strength correlator, we calculate the ultrasoft contribution to the QCD static energy of a quark-antiquark pair at short distances at NNNNLO in alpha_s. At the same order, this provides the logarithmic terms of the singlet static potential in pNRQCD and the log alpha_s terms...
hep-ph/9707473
null
Jonathan L. Rosner (University of Chicago)
Improved Tests of Relations for Baryon Isomultiplet Splittings
16 pages, LaTeX, no figures. Revised February 1998: further text and references
Phys. Rev. D 57, 4310 (1998)
10.1103/PhysRevD.57.4310
EFI-97-33-Rev
hep-ph
null
The least well-known octet baryon mass is $M_{\Xi^0} = 1314.9 \pm 0.6$ MeV. The prospect of an improved measurement of its mass by the KTeV experimental program at Fermilab, and opportunities for improvements in charged and excited hyperon and $\Delta$ mass measurements, makes it timely to re-examine descriptions of ...
[ { "created": "Fri, 25 Jul 1997 16:50:31 GMT", "version": "v1" }, { "created": "Tue, 25 Nov 1997 19:27:52 GMT", "version": "v2" }, { "created": "Sun, 11 Jan 1998 23:40:21 GMT", "version": "v3" }, { "created": "Wed, 4 Feb 1998 04:45:48 GMT", "version": "v4" } ]
2016-08-25
[ [ "Rosner", "Jonathan L.", "", "University of Chicago" ] ]
The least well-known octet baryon mass is $M_{\Xi^0} = 1314.9 \pm 0.6$ MeV. The prospect of an improved measurement of its mass by the KTeV experimental program at Fermilab, and opportunities for improvements in charged and excited hyperon and $\Delta$ mass measurements, makes it timely to re-examine descriptions of is...
1405.4442
Saereh Najjari
Saereh Najjari
Lepton Flavor Violation in the Standard Model with dimension 6 operators
Contribution to Rencontres de Moriond EW 2014 proceedings
null
null
null
hep-ph
http://creativecommons.org/licenses/by/3.0/
We investigate Lepton Flavor Violation (LFV) in the general extension of the Standard Model parametrized by the gauge invariant operators of dimension-6. We discuss 3-body charged lepton decays and decay of $Z$ boson to lepton pair and compare the obtained analytical expression with the current experimental results. ...
[ { "created": "Sat, 17 May 2014 22:38:09 GMT", "version": "v1" } ]
2014-05-20
[ [ "Najjari", "Saereh", "" ] ]
We investigate Lepton Flavor Violation (LFV) in the general extension of the Standard Model parametrized by the gauge invariant operators of dimension-6. We discuss 3-body charged lepton decays and decay of $Z$ boson to lepton pair and compare the obtained analytical expression with the current experimental results. We...
0706.0955
Christoph Haefeli
Jurg Gasser, Christoph Haefeli, Mikhail A. Ivanov, Martin Schmid
Integrating out strange quarks in ChPT
14 pages, 3 figures, References added. Due to a typo in a form program, we missed a finite, scale independent part in l_7. Is now included. Version to appear in Phys.Lett.B
Phys.Lett.B652:21-26,2007
10.1016/j.physletb.2007.06.058
null
hep-ph
null
We study three flavour chiral perturbation theory in a limit where the strange quark mass is much larger than the external momenta and the up and down quark masses, and where the external fields are those of two-flavour chiral perturbation theory. In this case, the theory reduces to the one of SU(2)_L x SU(2)_R. Thro...
[ { "created": "Thu, 7 Jun 2007 07:29:41 GMT", "version": "v1" }, { "created": "Tue, 26 Jun 2007 12:37:34 GMT", "version": "v2" } ]
2008-11-26
[ [ "Gasser", "Jurg", "" ], [ "Haefeli", "Christoph", "" ], [ "Ivanov", "Mikhail A.", "" ], [ "Schmid", "Martin", "" ] ]
We study three flavour chiral perturbation theory in a limit where the strange quark mass is much larger than the external momenta and the up and down quark masses, and where the external fields are those of two-flavour chiral perturbation theory. In this case, the theory reduces to the one of SU(2)_L x SU(2)_R. Throug...
2407.16751
Marco Ardu
Marco Ardu and Xabier Marcano
Completing the one-loop $\nu$SMEFT Renormalization Group Evolution
Fixed typos and added missing references
null
null
IFT-UAM/CSIC-24-108
hep-ph
http://creativecommons.org/licenses/by/4.0/
In this work we consider the Standard Model Effective Field Theory extended with right-handed neutrinos, the $\nu$SMEFT, and calculate the full set of one-loop anomalous dimensions that are proportional to Yukawa couplings. These contributions are particularly relevant when symmetry-protected low scale seesaw models ...
[ { "created": "Tue, 23 Jul 2024 18:00:01 GMT", "version": "v1" }, { "created": "Mon, 5 Aug 2024 08:10:08 GMT", "version": "v2" } ]
2024-08-06
[ [ "Ardu", "Marco", "" ], [ "Marcano", "Xabier", "" ] ]
In this work we consider the Standard Model Effective Field Theory extended with right-handed neutrinos, the $\nu$SMEFT, and calculate the full set of one-loop anomalous dimensions that are proportional to Yukawa couplings. These contributions are particularly relevant when symmetry-protected low scale seesaw models ar...
0908.1156
Chung Kao
Chung Kao, Shankar Sachithanandam, Joshua Sayre, and Yili Wang
Discovering the Higgs Bosons of Minimal Supersymmetry with Bottom Quarks
Revised version to appear in Physics Letters B
Phys.Lett.B682:291-296,2009
10.1016/j.physletb.2009.11.024
OKHEP-090808
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the prospects for the discovery of a neutral Higgs boson produced with one bottom quark followed by Higgs decay into a pair of bottom quarks at the CERN Large Hadron Collider (LHC) and the Fermilab Tevatron Collider. We work within the framework of the minimal supersymmetric standard model. The dominan...
[ { "created": "Sat, 8 Aug 2009 08:39:43 GMT", "version": "v1" }, { "created": "Sat, 31 Oct 2009 01:19:29 GMT", "version": "v2" } ]
2009-12-04
[ [ "Kao", "Chung", "" ], [ "Sachithanandam", "Shankar", "" ], [ "Sayre", "Joshua", "" ], [ "Wang", "Yili", "" ] ]
We investigate the prospects for the discovery of a neutral Higgs boson produced with one bottom quark followed by Higgs decay into a pair of bottom quarks at the CERN Large Hadron Collider (LHC) and the Fermilab Tevatron Collider. We work within the framework of the minimal supersymmetric standard model. The dominant ...
1605.08265
Agustin Sabio Vera
Douglas A. Ross and Agustin Sabio Vera
The Effect of the Infrared Phase of the Discrete BFKL Pomeron on Transverse Momentum Diffusion
15 pages, 11 figures
null
10.1007/JHEP08(2016)071
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Imposing infrared boundary conditions on the BFKL equation with running coupling transforms the complex momentum w-plane cut present in the gluon Green function into an infinite series of positive Regge poles. In addition, a cut on the negative w line remains. We consider a Hermitian kernel at leading order with runn...
[ { "created": "Thu, 26 May 2016 13:22:56 GMT", "version": "v1" } ]
2016-09-21
[ [ "Ross", "Douglas A.", "" ], [ "Vera", "Agustin Sabio", "" ] ]
Imposing infrared boundary conditions on the BFKL equation with running coupling transforms the complex momentum w-plane cut present in the gluon Green function into an infinite series of positive Regge poles. In addition, a cut on the negative w line remains. We consider a Hermitian kernel at leading order with runnin...
hep-ph/9504265
null
D. Comelli, M. Pietroni, and A. Riotto
Particle Currents on a CP Violating Higgs Background and the Spontaneous Baryogenesis Mechanism
10 pages, LaTeX file, uses epsf.sty, 4 figures available as a compressed .eps file
Phys.Lett.B354:91-98,1995
10.1016/0370-2693(95)00645-2
null
hep-ph
null
We compute the particle currents induced on a bubble wall background at finite temperature in a model with CP violation in the Higgs sector. Using a field theory approach we show that fermionic currents arise at one loop, so that a suppression factor ${\cal O}(h_t \phi/\pi T)^2$ with respect to previous computations ...
[ { "created": "Mon, 10 Apr 1995 12:55:15 GMT", "version": "v1" } ]
2019-08-15
[ [ "Comelli", "D.", "" ], [ "Pietroni", "M.", "" ], [ "Riotto", "A.", "" ] ]
We compute the particle currents induced on a bubble wall background at finite temperature in a model with CP violation in the Higgs sector. Using a field theory approach we show that fermionic currents arise at one loop, so that a suppression factor ${\cal O}(h_t \phi/\pi T)^2$ with respect to previous computations is...
hep-ph/0407235
Osamu Seto
Nobuchika Okada and Osamu Seto
A brane world cosmological solution to the gravitino problem
8 pages, references and comments added, the version accepted for publication in Phys.Rev.D
Phys.Rev. D71 (2005) 023517
10.1103/PhysRevD.71.023517
null
hep-ph astro-ph
null
We investigate the thermal production of gravitinos in the context of the brane world cosmology. Since the expansion law is modified from the one in the standard cosmology, the Boltzmann equation for the gravitino production is altered. We find that the late-time gravitino abundance is proportional to the ``transitio...
[ { "created": "Tue, 20 Jul 2004 22:45:47 GMT", "version": "v1" }, { "created": "Thu, 13 Jan 2005 11:10:46 GMT", "version": "v2" } ]
2009-11-10
[ [ "Okada", "Nobuchika", "" ], [ "Seto", "Osamu", "" ] ]
We investigate the thermal production of gravitinos in the context of the brane world cosmology. Since the expansion law is modified from the one in the standard cosmology, the Boltzmann equation for the gravitino production is altered. We find that the late-time gravitino abundance is proportional to the ``transition ...
2308.04644
Xiao-Yun Wang
Xiao-Yun Wang, Fancong Zeng and Jiyuan Zhang
Gravitational form factors of the proton from near-threshold vector meson photoproduction
9 pages,8 figures
Chin.Phys.C 48 (2024) 5, 054102
10.1088/1674-1137/ad2a66
null
hep-ph nucl-th
http://creativecommons.org/licenses/by/4.0/
We embark on a systematical analysis of the quark and gluon gravitational form factors (GFFs) of the proton, by connecting energy-momentum tensor (EMT) and the near-threshold vector meson photoproduction (NTVMP). Concretely, the quark contributions of GFFs are determined by global fitting the cross section of the lig...
[ { "created": "Wed, 9 Aug 2023 00:59:20 GMT", "version": "v1" }, { "created": "Wed, 10 Jan 2024 01:21:14 GMT", "version": "v2" } ]
2024-04-04
[ [ "Wang", "Xiao-Yun", "" ], [ "Zeng", "Fancong", "" ], [ "Zhang", "Jiyuan", "" ] ]
We embark on a systematical analysis of the quark and gluon gravitational form factors (GFFs) of the proton, by connecting energy-momentum tensor (EMT) and the near-threshold vector meson photoproduction (NTVMP). Concretely, the quark contributions of GFFs are determined by global fitting the cross section of the light...
hep-ph/0212107
Hector DE Vega
D. Boyanovsky, H. J. de Vega and S.-Y. Wang
Dynamical renormalization group approach to transport in ultrarelativistic plasmas: the electrical conductivity in high temperature QED
LaTex, 48 pages, 14 .ps figures, final version to appear in Phys. Rev. D
Phys.Rev.D67:065022,2003
10.1103/PhysRevD.67.065022
null
hep-ph hep-th nucl-th
null
The DC electrical conductivity of an ultrarelativistic QED plasma is studied in real time by implementing the dynamical renormalization group. The conductivity is obtained from the realtime dependence of a dissipative kernel related to the retarded photon polarization. Pinch singularities in the imaginary part of the...
[ { "created": "Fri, 6 Dec 2002 20:17:23 GMT", "version": "v1" }, { "created": "Thu, 6 Feb 2003 13:19:40 GMT", "version": "v2" } ]
2014-11-17
[ [ "Boyanovsky", "D.", "" ], [ "de Vega", "H. J.", "" ], [ "Wang", "S. -Y.", "" ] ]
The DC electrical conductivity of an ultrarelativistic QED plasma is studied in real time by implementing the dynamical renormalization group. The conductivity is obtained from the realtime dependence of a dissipative kernel related to the retarded photon polarization. Pinch singularities in the imaginary part of the p...
1408.6946
Sergey Troshin
S.M. Troshin, N.E. Tyurin
The LHC data and an upper bound for the inelastic diffraction
5 pages, no figures
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We comment on the status of the Pumplin bound for the inelastic diffraction in the light of the recent LHC data for elastic scattering
[ { "created": "Fri, 29 Aug 2014 08:03:17 GMT", "version": "v1" } ]
2014-09-01
[ [ "Troshin", "S. M.", "" ], [ "Tyurin", "N. E.", "" ] ]
We comment on the status of the Pumplin bound for the inelastic diffraction in the light of the recent LHC data for elastic scattering
hep-ph/9804340
Gabriel Sanchez-Colon
A. Garcia (1), R. Huerta (2), and G. Sanchez-Colon (2,3) ((1) CINVESTAV-Mexico, (2) CINVESTAV-Merida, (3) UC-Riverside)
A detailed determination of the a priori mixing angles in non-leptonic decays of hyperons
null
J.Phys.G25:45-57,1999
10.1088/0954-3899/25/1/005
JPG-nldhd
hep-ph
null
Non-leptonic Decays of Hyperons can provide a detailed determination of the a priori mixing angles that appear in physical hadrons in the approach in which non-perturbative flavor and parity violations are present in tiny pieces of the hadron mass operator. The determination of such angles in these decays will provid...
[ { "created": "Tue, 21 Apr 1998 01:27:55 GMT", "version": "v1" }, { "created": "Tue, 12 May 1998 04:20:29 GMT", "version": "v2" } ]
2008-11-26
[ [ "Garcia", "A.", "" ], [ "Huerta", "R.", "" ], [ "Sanchez-Colon", "G.", "" ] ]
Non-leptonic Decays of Hyperons can provide a detailed determination of the a priori mixing angles that appear in physical hadrons in the approach in which non-perturbative flavor and parity violations are present in tiny pieces of the hadron mass operator. The determination of such angles in these decays will provide ...
hep-ph/9510418
Eckart Stein
Lech Mankiewicz, Eckart Stein, and Andreas Sch\"afer
$Q^2$ Dependence of the Bjorken Sum Rule
6 pages, standard Latex file, Talk given by L.M. at the `Workshop on the prospects of spin physics at HERA', DESY-Zeuthen, August 28-31, 1995
null
null
null
hep-ph
null
We discuss various estimates of the magnitude of higher-twist corrections to the Bjorken sum rule in polarized deep inelastic scattering.
[ { "created": "Thu, 26 Oct 1995 11:53:08 GMT", "version": "v1" } ]
2007-05-23
[ [ "Mankiewicz", "Lech", "" ], [ "Stein", "Eckart", "" ], [ "Schäfer", "Andreas", "" ] ]
We discuss various estimates of the magnitude of higher-twist corrections to the Bjorken sum rule in polarized deep inelastic scattering.
1210.7472
Ilya Gorbunov N
G. A. Kozlov
Towards the Bose symmetry violation issue
9 pages
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the Bose symmetry violation through the decays of heavy vector bosons at high energies. In particular, the decay of a Z'-boson into two photons where one of the photons is the vector unparticle in the scale invariant sector is considered as a sample. We find out that the Bose symmetry might be violated in th...
[ { "created": "Sun, 28 Oct 2012 16:17:34 GMT", "version": "v1" } ]
2012-10-30
[ [ "Kozlov", "G. A.", "" ] ]
We study the Bose symmetry violation through the decays of heavy vector bosons at high energies. In particular, the decay of a Z'-boson into two photons where one of the photons is the vector unparticle in the scale invariant sector is considered as a sample. We find out that the Bose symmetry might be violated in the ...
0711.3012
De-Chang Dai
De-Chang Dai, Glenn Starkman, Dejan Stojkovic, Cigdem Issever, Eram Rizvi, and Jeff Tseng
BlackMax: A black-hole event generator with rotation, recoil, split branes and brane tension
32 pages, 61 figures, webpage http://www-pnp.physics.ox.ac.uk/~issever/BlackMax/blackmax.html
Phys.Rev.D77:076007,2008
10.1103/PhysRevD.77.076007
null
hep-ph gr-qc hep-th
null
We present a comprehensive black-hole event generator, BlackMax, which simulates the experimental signatures of microscopic and Planckian black-hole production and evolution at the LHC in the context of brane world models with low-scale quantum gravity. The generator is based on phenomenologically realistic models fr...
[ { "created": "Mon, 19 Nov 2007 21:02:18 GMT", "version": "v1" }, { "created": "Mon, 10 Dec 2007 14:09:04 GMT", "version": "v2" }, { "created": "Fri, 28 Mar 2008 17:36:58 GMT", "version": "v3" }, { "created": "Wed, 16 Apr 2008 13:39:48 GMT", "version": "v4" } ]
2008-11-26
[ [ "Dai", "De-Chang", "" ], [ "Starkman", "Glenn", "" ], [ "Stojkovic", "Dejan", "" ], [ "Issever", "Cigdem", "" ], [ "Rizvi", "Eram", "" ], [ "Tseng", "Jeff", "" ] ]
We present a comprehensive black-hole event generator, BlackMax, which simulates the experimental signatures of microscopic and Planckian black-hole production and evolution at the LHC in the context of brane world models with low-scale quantum gravity. The generator is based on phenomenologically realistic models free...
1502.02581
Nikolas Kauer
Nikolas Kauer
Off-shell Higgs signal and total width determination at the LHC
8 pages, 6 figures, to appear in the proceedings of Frontiers of Fundamental Physics 14, 15-18 July 2014, Aix Marseille University Saint-Charles Campus, Marseille, France; updated references and figure 4
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A substantial off-shell Higgs boson signal in the gluon fusion and vector boson fusion H --> ZZ and H --> WW channels at the Large Hadron Collider (LHC) facilitates a novel, complementary approach to constraining the total Higgs width Gamma_H. With LHC Run 1 data, experimental analyses by CMS and ATLAS find Gamma_H <...
[ { "created": "Mon, 9 Feb 2015 17:54:39 GMT", "version": "v1" }, { "created": "Sun, 8 Mar 2015 19:04:27 GMT", "version": "v2" } ]
2015-03-10
[ [ "Kauer", "Nikolas", "" ] ]
A substantial off-shell Higgs boson signal in the gluon fusion and vector boson fusion H --> ZZ and H --> WW channels at the Large Hadron Collider (LHC) facilitates a novel, complementary approach to constraining the total Higgs width Gamma_H. With LHC Run 1 data, experimental analyses by CMS and ATLAS find Gamma_H < 5...
1911.01975
Maria Ubiali Dr
Giovanni Ridolfi, Maria Ubiali, Marco Zaro
A fragmentation-based study of heavy quark production
34 pages, 9 figures. v2: Minor revision suggested by JHEP implemented
null
10.1007/JHEP01(2020)196
DAMTP-2019-27, NIKHEF/2019-044
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Processes involving heavy quarks are a crucial component of the LHC physics program, both by themselves and as backgrounds for Higgs physics and new physics searches. In this work, we critically reconsider the validity of the widely-adopted approximation in which heavy quarks are generated at the matrix-element level...
[ { "created": "Tue, 5 Nov 2019 18:01:56 GMT", "version": "v1" }, { "created": "Wed, 12 Feb 2020 15:46:46 GMT", "version": "v2" } ]
2020-03-18
[ [ "Ridolfi", "Giovanni", "" ], [ "Ubiali", "Maria", "" ], [ "Zaro", "Marco", "" ] ]
Processes involving heavy quarks are a crucial component of the LHC physics program, both by themselves and as backgrounds for Higgs physics and new physics searches. In this work, we critically reconsider the validity of the widely-adopted approximation in which heavy quarks are generated at the matrix-element level, ...
hep-ph/9608370
Eric Braaten
Eric Braaten
Charmonium Production in High Energy Collisions
7 pages, 1 Postscript figure, uses epsfig.sty and espcrc1.sty, invited talk presented at Quark Matter 96
Nucl.Phys. A610 (1996) 386c-393c
10.1016/S0375-9474(96)00372-7
OHSTPY-HEP-T-96-016
hep-ph nucl-th
null
In recent years, there have been significant developments in heavy quarkonium production, both in theory and in experiment. These developments may have important implications for the use of charmonium as a probe in heavy-ion collisions. A summary of these developments is presented below. Those interested in more deta...
[ { "created": "Mon, 19 Aug 1996 21:00:58 GMT", "version": "v1" } ]
2009-10-28
[ [ "Braaten", "Eric", "" ] ]
In recent years, there have been significant developments in heavy quarkonium production, both in theory and in experiment. These developments may have important implications for the use of charmonium as a probe in heavy-ion collisions. A summary of these developments is presented below. Those interested in more detail...
1007.3083
Malgorzata Worek
Malgorzata Worek
Top quark pair production with two jets at next-to-leading order
8 pages, 6 figures, 2 tables. Presented at the 3rd International Workshop on Top Quark Physics, Top 2010, Bruges, Belgium, May 31 - June 4, 2010
Nuovo Cim.C33:57-64, 2010
10.1393/ncc/i2010-10658-1
WUB/10-18
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A report on the recent next-to-leading order QCD calculations to ttbb and ttjj at the CERN Large Hardon Collider is given. The elements of the calculation are briefly summarized and results for integrated and differential cross sections are presented.
[ { "created": "Mon, 19 Jul 2010 08:36:40 GMT", "version": "v1" } ]
2011-02-01
[ [ "Worek", "Malgorzata", "" ] ]
A report on the recent next-to-leading order QCD calculations to ttbb and ttjj at the CERN Large Hardon Collider is given. The elements of the calculation are briefly summarized and results for integrated and differential cross sections are presented.
hep-ph/0008096
Valeri Markushin
V.E. Markushin (Paul Scherrer Institute, Switzerland)
The structure of the light scalar mesons and QCD sum rules
5 pages, 3 PostScript figures; presented at Meson 2000, Cracow, Poland, May 19--23, 2000; to be published in Acta Phys. Pol. B
Acta Phys.Polon. B31 (2000) 2665-2668
null
PSI-PR-00-12
hep-ph
null
The structure of the light scalar mesons is elucidated by the investigation of the S-matrix poles and the q-qbar spectral density in a coupled channel model that includes pi-pi, K-Kbar and q-qbar channels. It is shown that the dynamical origin of the sigma and f0(980) mesons is consistent with the observed spectrum o...
[ { "created": "Thu, 10 Aug 2000 13:02:49 GMT", "version": "v1" } ]
2007-05-23
[ [ "Markushin", "V. E.", "", "Paul Scherrer Institute, Switzerland" ] ]
The structure of the light scalar mesons is elucidated by the investigation of the S-matrix poles and the q-qbar spectral density in a coupled channel model that includes pi-pi, K-Kbar and q-qbar channels. It is shown that the dynamical origin of the sigma and f0(980) mesons is consistent with the observed spectrum of ...
1711.08251
Iason Baldes
Iason Baldes
Generation of Asymmetric Dark Matter and Gravitational Waves
4 pages, 3 figures. Prepared for the proceedings of the 29th Rencontres de Blois on Particle Physics and Cosmology
null
null
DESY-17-208
hep-ph
http://creativecommons.org/licenses/by/4.0/
We consider the possibility of a gravitational wave signal in an asymmetric dark matter model. In this model a generative sector produces both the baryon asymmetry and a dark matter asymmetry in a strong first-order phase transtion. Bubble collisions during the phase transition lead to sound waves in the plasma which...
[ { "created": "Wed, 22 Nov 2017 12:36:36 GMT", "version": "v1" } ]
2017-11-27
[ [ "Baldes", "Iason", "" ] ]
We consider the possibility of a gravitational wave signal in an asymmetric dark matter model. In this model a generative sector produces both the baryon asymmetry and a dark matter asymmetry in a strong first-order phase transtion. Bubble collisions during the phase transition lead to sound waves in the plasma which a...
0904.1625
Anibal Medina
Anibal D. Medina, Nausheen R. Shah and Carlos E. M. Wagner
A Heavy Higgs and a Light Sneutrino NLSP in the MSSM with Enhanced SU(2) D-terms
30 pages, 8 figures
Phys.Rev.D80:015001,2009
10.1103/PhysRevD.80.015001
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Minimal Supersymmetric extension of the Standard Model provides a solution to the hierarchy problem and leads to the presence of a light Higgs. A Higgs boson with mass above the present experimental bound may only be obtained for relatively heavy third generation squarks, requiring a precise, somewhat unnatural b...
[ { "created": "Fri, 10 Apr 2009 04:21:05 GMT", "version": "v1" } ]
2009-10-07
[ [ "Medina", "Anibal D.", "" ], [ "Shah", "Nausheen R.", "" ], [ "Wagner", "Carlos E. M.", "" ] ]
The Minimal Supersymmetric extension of the Standard Model provides a solution to the hierarchy problem and leads to the presence of a light Higgs. A Higgs boson with mass above the present experimental bound may only be obtained for relatively heavy third generation squarks, requiring a precise, somewhat unnatural bal...
1811.10569
Stanislav Rusak
Stanislav Rusak
Destabilization of the EW vacuum in non-minimally coupled inflation
20 pages, 6 figures
null
10.1088/1475-7516/2020/05/020
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Current cosmological data favour inflationary models non-minimally coupled to gravity. In this work we study the implications of the metastability of the electroweak vacuum in this framework. We consider an inflaton field with a non-minimal coupling to Ricci curvature and a portal coupling between the Higgs field and...
[ { "created": "Mon, 26 Nov 2018 18:18:34 GMT", "version": "v1" } ]
2020-05-20
[ [ "Rusak", "Stanislav", "" ] ]
Current cosmological data favour inflationary models non-minimally coupled to gravity. In this work we study the implications of the metastability of the electroweak vacuum in this framework. We consider an inflaton field with a non-minimal coupling to Ricci curvature and a portal coupling between the Higgs field and t...
1111.3365
Valentin V. Khoze
David Grellscheid, Joerg Jaeckel, Valentin V. Khoze, Peter Richardson and Chris Wymant
Direct SUSY Searches at the LHC in the light of LEP Higgs Bounds
v2: comments and an update added, results unchanged, 15 pages, 5 figures
null
10.1007/JHEP03(2012)078
DCPT/11/148; IPPP/11/74
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this note we compare the latest 1.04 fb^{-1} LHC searches for squarks and gluinos from jets and missing transverse momentum (MET) with constraints arising from the LEP Higgs bound. For General Gauge Mediation models with moderate values of tan(beta) we find that the zero-lepton MET searches of supersymmetry at the...
[ { "created": "Mon, 14 Nov 2011 21:00:03 GMT", "version": "v1" }, { "created": "Thu, 19 Jan 2012 21:20:22 GMT", "version": "v2" } ]
2015-06-03
[ [ "Grellscheid", "David", "" ], [ "Jaeckel", "Joerg", "" ], [ "Khoze", "Valentin V.", "" ], [ "Richardson", "Peter", "" ], [ "Wymant", "Chris", "" ] ]
In this note we compare the latest 1.04 fb^{-1} LHC searches for squarks and gluinos from jets and missing transverse momentum (MET) with constraints arising from the LEP Higgs bound. For General Gauge Mediation models with moderate values of tan(beta) we find that the zero-lepton MET searches of supersymmetry at the L...
1902.00915
Feng Li
Feng Li
How a spinning quark moves in the NJL type mean field
9 pages
null
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The transport equation of the spinning quarks, moving in the Nambu-Jona-Lasinio (NJL) type mean field, is derived by solving the Schwinger-Dyson equations, up to the order of $\hbar$, under the mean field approximation. It shows that the scalar and the vector mean field potentials have different impacts on the quantu...
[ { "created": "Sun, 3 Feb 2019 16:09:08 GMT", "version": "v1" }, { "created": "Wed, 20 Feb 2019 16:29:22 GMT", "version": "v2" }, { "created": "Tue, 26 Mar 2019 09:57:22 GMT", "version": "v3" } ]
2019-03-27
[ [ "Li", "Feng", "" ] ]
The transport equation of the spinning quarks, moving in the Nambu-Jona-Lasinio (NJL) type mean field, is derived by solving the Schwinger-Dyson equations, up to the order of $\hbar$, under the mean field approximation. It shows that the scalar and the vector mean field potentials have different impacts on the quantum ...
hep-ph/0206028
Marcio Jose Menon
R. F. \'Avila, E. G. S. Luna and M. J. Menon
Analyticity Relations at High Energies and Forward Scattering
11 pages, 9 figures, aps-revtex. To be published in Proc. LISHEP 2002 - Session C: Workshop on Diffractive Physics - February 4 - 8, 2002, Rio de Janeiro, RJ, Brazil
null
null
null
hep-ph
null
Making use of a derivative dispersion approach, we investigate the behavior of the the total cross section and the rho parameter for pp and p(bar)p scattering from accelerator to cosmic ray energies. The discrepancies in the cosmic ray information is treated through the definition of two different ensembles of data. ...
[ { "created": "Tue, 4 Jun 2002 13:51:52 GMT", "version": "v1" } ]
2007-05-23
[ [ "Ávila", "R. F.", "" ], [ "Luna", "E. G. S.", "" ], [ "Menon", "M. J.", "" ] ]
Making use of a derivative dispersion approach, we investigate the behavior of the the total cross section and the rho parameter for pp and p(bar)p scattering from accelerator to cosmic ray energies. The discrepancies in the cosmic ray information is treated through the definition of two different ensembles of data. Si...
hep-ph/9607280
Martina Brisudova
Martina M. Brisudova, Robert J. Perry and Kenneth G. Wilson
Quarkonia in Hamiltonian Light-Front QCD
9 pages, 1 latex figure included in the text. Published version (much more reader-friendly); corrected error in self-energy
Phys.Rev.Lett. 78 (1997) 1227-1230
10.1103/PhysRevLett.78.1227
null
hep-ph hep-th
null
A constituent parton picture of hadrons with logarithmic confinement naturally arises in weak coupling light-front QCD. Confinement provides a mass gap that allows the constituent picture to emerge. The effective renormalized Hamiltonian is computed to ${\cal O}(g^2)$, and used to study charmonium and bottomonium. Ra...
[ { "created": "Wed, 10 Jul 1996 16:22:30 GMT", "version": "v1" }, { "created": "Wed, 31 Oct 2001 20:18:15 GMT", "version": "v2" } ]
2009-10-28
[ [ "Brisudova", "Martina M.", "" ], [ "Perry", "Robert J.", "" ], [ "Wilson", "Kenneth G.", "" ] ]
A constituent parton picture of hadrons with logarithmic confinement naturally arises in weak coupling light-front QCD. Confinement provides a mass gap that allows the constituent picture to emerge. The effective renormalized Hamiltonian is computed to ${\cal O}(g^2)$, and used to study charmonium and bottomonium. Radi...
2104.13270
Xiang Liu
Ri-Qing Qian, Jun-Zhang Wang, Xiang Liu and Takayuki Matsuki
Charmonium decays into ${\Lambda}_c\bar{\Lambda}_c$ pair governed by the hadronic loop mechanism
8 pages, 6 figures and 4 tables. Accepted by Phys. Rev. D
Phys. Rev. D 104, 094001 (2021)
10.1103/PhysRevD.104.094001
null
hep-ph hep-ex
http://creativecommons.org/publicdomain/zero/1.0/
In this work, we investigate the open-charm decay process $\psi\to\Lambda_c\bar{\Lambda}_c$ via the hadronic loop mechanism for vector charmonia above $\Lambda_c\bar{\Lambda}_c$ threshold. The branching ratios of these vector charmonium states to $\Lambda_c\bar{\Lambda}_c$ are estimated. The charmonium explanation of...
[ { "created": "Tue, 27 Apr 2021 15:41:26 GMT", "version": "v1" }, { "created": "Mon, 13 Sep 2021 05:36:21 GMT", "version": "v2" }, { "created": "Wed, 13 Oct 2021 01:00:14 GMT", "version": "v3" } ]
2021-11-04
[ [ "Qian", "Ri-Qing", "" ], [ "Wang", "Jun-Zhang", "" ], [ "Liu", "Xiang", "" ], [ "Matsuki", "Takayuki", "" ] ]
In this work, we investigate the open-charm decay process $\psi\to\Lambda_c\bar{\Lambda}_c$ via the hadronic loop mechanism for vector charmonia above $\Lambda_c\bar{\Lambda}_c$ threshold. The branching ratios of these vector charmonium states to $\Lambda_c\bar{\Lambda}_c$ are estimated. The charmonium explanation of t...
1206.3128
Kenji Fukushima
Kenji Fukushima and Kazuya Mameda
Wess-Zumino-Witten action and photons from the Chiral Magnetic Effect
5 pages, 1 figure; some discussions refined
null
10.1103/PhysRevD.86.071501
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We revisit the Chiral Magnetic Effect (CME) using the chiral Lagrangian. We demonstrate that the electric-current formula of the CME is derived immediately from the contact part of the Wess-Zumino-Witten action. This implies that the CME could be, if observed, a signature for the local parity violation, but a direct ...
[ { "created": "Thu, 14 Jun 2012 14:59:24 GMT", "version": "v1" }, { "created": "Sat, 21 Jul 2012 18:39:02 GMT", "version": "v2" } ]
2015-06-05
[ [ "Fukushima", "Kenji", "" ], [ "Mameda", "Kazuya", "" ] ]
We revisit the Chiral Magnetic Effect (CME) using the chiral Lagrangian. We demonstrate that the electric-current formula of the CME is derived immediately from the contact part of the Wess-Zumino-Witten action. This implies that the CME could be, if observed, a signature for the local parity violation, but a direct ev...
hep-ph/9911340
Jean Philippe Guillet
T. Binoth, J. Ph. Guillet, E. Pilon, M. Werlen
A full Next to Leading Order study of direct photon pair production in hadronic collisions
45 pages Latex, 16 eps files plus some metafont files; replaced by the version to appear in Eur. Phys. J. C
Eur.Phys.J.C16:311-330,2000
10.1007/s100520050024
LAPTH-760/99
hep-ph
null
We discuss the production of photon pairs in hadronic collisions, from fixed target to LHC energies. The study which follows is based on a QCD calculation at full next-to-leading order accuracy, including single and double fragmentation contributions, and implemented in the form of a general purpose computer program ...
[ { "created": "Fri, 12 Nov 1999 18:54:27 GMT", "version": "v1" }, { "created": "Mon, 22 Nov 1999 16:08:45 GMT", "version": "v2" }, { "created": "Tue, 4 Apr 2000 12:12:29 GMT", "version": "v3" } ]
2011-09-13
[ [ "Binoth", "T.", "" ], [ "Guillet", "J. Ph.", "" ], [ "Pilon", "E.", "" ], [ "Werlen", "M.", "" ] ]
We discuss the production of photon pairs in hadronic collisions, from fixed target to LHC energies. The study which follows is based on a QCD calculation at full next-to-leading order accuracy, including single and double fragmentation contributions, and implemented in the form of a general purpose computer program of...
1305.6397
James Wells
Rick S. Gupta, Heidi Rzehak, James D. Wells
How well do we need to measure the Higgs boson mass and self-coupling?
20 pages, 4 figures
Phys. Rev. D 88, 055024 (2013)
10.1103/PhysRevD.88.055024
CERN-PH-TH-2013-101
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Much of the discussion regarding future measurements of the Higgs boson mass and self-coupling is focussed on how well various collider options can do. In this article we ask a physics-based question of how well do we need colliders to measure these quantities to have an impact on discovery of new physics or an impac...
[ { "created": "Tue, 28 May 2013 07:45:32 GMT", "version": "v1" }, { "created": "Tue, 25 Jun 2013 18:25:46 GMT", "version": "v2" } ]
2013-10-30
[ [ "Gupta", "Rick S.", "" ], [ "Rzehak", "Heidi", "" ], [ "Wells", "James D.", "" ] ]
Much of the discussion regarding future measurements of the Higgs boson mass and self-coupling is focussed on how well various collider options can do. In this article we ask a physics-based question of how well do we need colliders to measure these quantities to have an impact on discovery of new physics or an impact ...
1302.0594
Jeonghyeon Song
Kingman Cheung, Kang Young Lee, So Young Shim, Jeonghyeon Song, and Namseok Yoo
Using the Higgs boson to probe the littlest Higgs model with T-parity through $Z_H W_H$ production at the LHC
references added: 12 pages, 2 figures, 1 table
null
10.1103/PhysRevD.87.097701
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the littlest Higgs model with T-parity, the production cross section of the T-odd heavy gauge boson pair $Z_H W_H$ is quite sizable at the LHC. In addition, both the $W_H$ and $Z_H$ bosons have almost exclusively one decay channel into $W A_H$ and $H A_H$ respectively, where the dark matter candidate $A_H$ yields ...
[ { "created": "Mon, 4 Feb 2013 06:36:49 GMT", "version": "v1" }, { "created": "Fri, 8 Feb 2013 10:14:54 GMT", "version": "v2" } ]
2013-05-08
[ [ "Cheung", "Kingman", "" ], [ "Lee", "Kang Young", "" ], [ "Shim", "So Young", "" ], [ "Song", "Jeonghyeon", "" ], [ "Yoo", "Namseok", "" ] ]
In the littlest Higgs model with T-parity, the production cross section of the T-odd heavy gauge boson pair $Z_H W_H$ is quite sizable at the LHC. In addition, both the $W_H$ and $Z_H$ bosons have almost exclusively one decay channel into $W A_H$ and $H A_H$ respectively, where the dark matter candidate $A_H$ yields a ...
hep-ph/0110207
Lev Leinson
L. B. Leinson and A. Perez
Relativistic direct Urca processes in cooling neutron stars
18 pages, 1 figure
Phys.Lett. B518 (2001) 15; Erratum-ibid. B522 (2001) 358
10.1016/S0370-2693(01)01042-5
null
hep-ph astro-ph nucl-th
null
We derive a relativistic expression for neutrino energy losses caused by the direct Urca processes in degenerate baryon matter of neutron stars. We use two different ways to calculate the emissivity caused by the reactions to our interest. First we perform a standard calculation by Fermi's ''golden'' rule. The second...
[ { "created": "Tue, 16 Oct 2001 07:45:04 GMT", "version": "v1" } ]
2009-11-07
[ [ "Leinson", "L. B.", "" ], [ "Perez", "A.", "" ] ]
We derive a relativistic expression for neutrino energy losses caused by the direct Urca processes in degenerate baryon matter of neutron stars. We use two different ways to calculate the emissivity caused by the reactions to our interest. First we perform a standard calculation by Fermi's ''golden'' rule. The second c...
1305.1686
Kenji Nishiwaki
Takuya Kakuda, Kenji Nishiwaki, Kin-ya Oda and Ryoutaro Watanabe
Universal extra dimensions after Higgs discovery
37 pages, 9 figures, 7 tables (v1); 38 pages, 9 figures, 7 tables, with minor modifications, typos fixed, references added (v2); 37 pages, 10 figures, 7 tables, published version in PRD, figures modified, a figure added, typos fixed, a reference added (v3)
Physical Review D 88, 035007 (2013)
10.1103/PhysRevD.88.035007
HRI-P-13-02-002, RECAPP-HRI-2013-003, KEK-TH-1631, OU-HET-789
hep-ph hep-ex
http://creativecommons.org/licenses/by/3.0/
We show bounds on five- and six-dimensional universal extra dimension (UED) models from the latest results of the Higgs searches at the LHC and from the electroweak precision data for the S and T parameters. We consider the minimal UED model in five dimensions and the ones in six dimensions. The highest possible ultr...
[ { "created": "Wed, 8 May 2013 00:55:44 GMT", "version": "v1" }, { "created": "Wed, 22 May 2013 05:14:24 GMT", "version": "v2" }, { "created": "Wed, 14 Aug 2013 17:20:51 GMT", "version": "v3" } ]
2013-08-15
[ [ "Kakuda", "Takuya", "" ], [ "Nishiwaki", "Kenji", "" ], [ "Oda", "Kin-ya", "" ], [ "Watanabe", "Ryoutaro", "" ] ]
We show bounds on five- and six-dimensional universal extra dimension (UED) models from the latest results of the Higgs searches at the LHC and from the electroweak precision data for the S and T parameters. We consider the minimal UED model in five dimensions and the ones in six dimensions. The highest possible ultrav...
hep-ph/0410366
Roni Harnik
Roni Harnik
The Supersymmetric Fat Higgs
Talk given at the 12th International Conference on Supersymmetry and Unification of Fundamental Interactions (SUSY 04), Tsukuba, Japan, 17-23 Jun 2004. To appear in the proceedings. 4 pages
null
null
LBNL-56564, UCB-PTH-04/29
hep-ph
null
Supersymmetric models have traditionally been assumed to be perturbative up to high scales due to the requirement of calculable unification. In this note I review the recently proposed `Fat Higgs' model which relaxes the requirement of perturbativity. In this framework, an NMSSM-like trilinear coupling becomes strong...
[ { "created": "Wed, 27 Oct 2004 17:07:05 GMT", "version": "v1" } ]
2007-05-23
[ [ "Harnik", "Roni", "" ] ]
Supersymmetric models have traditionally been assumed to be perturbative up to high scales due to the requirement of calculable unification. In this note I review the recently proposed `Fat Higgs' model which relaxes the requirement of perturbativity. In this framework, an NMSSM-like trilinear coupling becomes strong a...
1911.10210
Jonathan Kozaczuk
Jonathan Kozaczuk, Michael J. Ramsey-Musolf, Jessie Shelton
Exotic Higgs Decays and the Electroweak Phase Transition
26 pages, 4 figures. Happy Thanksgiving!
Phys. Rev. D 101, 115035 (2020)
10.1103/PhysRevD.101.115035
ACFI T19-10
hep-ph astro-ph.CO hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Light new physics weakly coupled to the Higgs can induce a strong first-order electroweak phase transition (EWPT). Here, we argue that scenarios in which the EWPT is driven first-order by a light scalar with mass between $\sim 10$ GeV - $m_h/2$ and small mixing with the Higgs will be conclusively probed by the high-l...
[ { "created": "Fri, 22 Nov 2019 19:00:02 GMT", "version": "v1" } ]
2020-07-01
[ [ "Kozaczuk", "Jonathan", "" ], [ "Ramsey-Musolf", "Michael J.", "" ], [ "Shelton", "Jessie", "" ] ]
Light new physics weakly coupled to the Higgs can induce a strong first-order electroweak phase transition (EWPT). Here, we argue that scenarios in which the EWPT is driven first-order by a light scalar with mass between $\sim 10$ GeV - $m_h/2$ and small mixing with the Higgs will be conclusively probed by the high-lum...
1312.0457
Shao-Feng Ge
Shao-Feng Ge and Kaoru Hagiwara
Physics Reach of Atmospheric Neutrino Measurements at PINGU
21 pages, 8 figures, 6 tables, to appear in JHEP
null
10.1007/JHEP09(2014)024
KEK-TH-1691
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The sensitivity of a huge underground water/ice Cherenkov detector, such as PINGU in IceCube, to the neutrino mass hierarchy, the atmospheric mixing angle and its octant, is studied in detail. Based on the event rate decomposition in the propagation basis, we illustrate the smearing effects from the neutrino scatteri...
[ { "created": "Mon, 2 Dec 2013 13:50:17 GMT", "version": "v1" }, { "created": "Sun, 11 May 2014 15:41:25 GMT", "version": "v2" }, { "created": "Wed, 6 Aug 2014 09:38:06 GMT", "version": "v3" } ]
2015-06-18
[ [ "Ge", "Shao-Feng", "" ], [ "Hagiwara", "Kaoru", "" ] ]
The sensitivity of a huge underground water/ice Cherenkov detector, such as PINGU in IceCube, to the neutrino mass hierarchy, the atmospheric mixing angle and its octant, is studied in detail. Based on the event rate decomposition in the propagation basis, we illustrate the smearing effects from the neutrino scattering...
hep-ph/9307269
null
J.H. K\"uhn
Tau Kinematics from Impact Parameters
4[pag]es, 1 figure available by FAX, TTP93-14
Phys.Lett. B313 (1993) 458-460
10.1016/0370-2693(93)90019-E
null
hep-ph
null
The momenta of $\tau$ decay products in the reaction $e^+e^-\to\tau^+\tau^-$ do not constrain the $\tau$ direction unambiguously. It is shown how the measurement of tracks of hadrons from semileptonic $\tau$ decays, in particular their relative impact parameters, allows to resolve this ambiguity.
[ { "created": "Wed, 14 Jul 1993 14:25:00 GMT", "version": "v1" } ]
2009-10-22
[ [ "Kühn", "J. H.", "" ] ]
The momenta of $\tau$ decay products in the reaction $e^+e^-\to\tau^+\tau^-$ do not constrain the $\tau$ direction unambiguously. It is shown how the measurement of tracks of hadrons from semileptonic $\tau$ decays, in particular their relative impact parameters, allows to resolve this ambiguity.
hep-ph/9608409
Gonzalo Parente Bermudez
A.V. Kotikov and G. Parente
The Longitudinal Structure Function $F_L$ at small x
Latex file (3 pages), 1 Postscript figures, uses procl.sty and psfig.tex. To appear in Proceedings of the Int. Workshop on DIS and Related Phenomena (Rome, April 1996)
null
null
null
hep-ph
null
We present a set of formulae to extract the longitudinal deep inelastic structure function $F_L$ from the transverse structure function $F_2$ and its derivative $dF_2/dlnQ^2$ at small $x$. Using $F_2$ HERA data we obtain $F_L$ in the range $10^{-4} \leq x \leq 10^{-2}$ at $Q^2=20$ GeV$^2$
[ { "created": "Thu, 22 Aug 1996 06:20:50 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kotikov", "A. V.", "" ], [ "Parente", "G.", "" ] ]
We present a set of formulae to extract the longitudinal deep inelastic structure function $F_L$ from the transverse structure function $F_2$ and its derivative $dF_2/dlnQ^2$ at small $x$. Using $F_2$ HERA data we obtain $F_L$ in the range $10^{-4} \leq x \leq 10^{-2}$ at $Q^2=20$ GeV$^2$
hep-ph/9805475
Ricardo Vazquez
C. Pajares, D. Sousa, and R.A. V\'azquez
Signals of phase transition in atmospheric showers
11 pages, 3 figures
null
null
null
hep-ph astro-ph
null
We discuss collective effects like percolation, quark gluon plasma, or string fusion and their effect on the longitudinal development of high energy showers in air. It is shown that iron-air showers could develop more slowly than expected and produce the observed change in the slope of $X_max$ at the highest energies...
[ { "created": "Wed, 27 May 1998 08:33:47 GMT", "version": "v1" } ]
2007-05-23
[ [ "Pajares", "C.", "" ], [ "Sousa", "D.", "" ], [ "Vázquez", "R. A.", "" ] ]
We discuss collective effects like percolation, quark gluon plasma, or string fusion and their effect on the longitudinal development of high energy showers in air. It is shown that iron-air showers could develop more slowly than expected and produce the observed change in the slope of $X_max$ at the highest energies.
hep-ph/9411219
Carlo Giunti
C. Giunti, C. W. Kim and J. D. Kim
Atmospheric Neutrino Problem in Maximally-Mixed Three Generations of Neutrinos
Revtex file, 11 pages + 3 figures (included). The postscript file of text and figures is available at ftp://toxd01.to.infn.it/pub/giunti/1994/dftt-54-94/dftt-54-94.ps.Z
Phys.Lett.B352:357-364,1995
10.1016/0370-2693(95)00424-J
DFTT 54/94; SNUTH-94-109
hep-ph astro-ph
null
Motivated by the indication that both the atmospheric and the solar neutrino puzzles may simultaneously be solved by (vacuum as well as matter-induced resonant) oscillations of two generations of neutrinos with large mixing, we have analyzed the data on the atmospheric and solar neutrinos assuming that all {\it three...
[ { "created": "Thu, 3 Nov 1994 16:40:11 GMT", "version": "v1" }, { "created": "Fri, 4 Nov 1994 08:02:27 GMT", "version": "v2" }, { "created": "Sun, 6 Nov 1994 16:56:17 GMT", "version": "v3" }, { "created": "Wed, 8 Mar 1995 16:05:04 GMT", "version": "v4" } ]
2014-11-17
[ [ "Giunti", "C.", "" ], [ "Kim", "C. W.", "" ], [ "Kim", "J. D.", "" ] ]
Motivated by the indication that both the atmospheric and the solar neutrino puzzles may simultaneously be solved by (vacuum as well as matter-induced resonant) oscillations of two generations of neutrinos with large mixing, we have analyzed the data on the atmospheric and solar neutrinos assuming that all {\it three} ...
2208.12234
Hoernisa Iminniyaz
Maqingshan, Hoernisa Iminniyaz
Asymmetric Dark Matter Abundance Including Non-thermal production
11 pages, 6 figures
null
10.1088/1572-9494/acde68
null
hep-ph
http://creativecommons.org/licenses/by-nc-nd/4.0/
We investigate the relic abundance of asymmetric Dark Matter where the asymmetric Dark Matter is non--thermally produced from the decay of heavier particles in addition to the usual thermal production. We discuss the relic density of asymmetric Dark Matter including the decay of heavy particles in low temperature sce...
[ { "created": "Thu, 25 Aug 2022 17:34:37 GMT", "version": "v1" }, { "created": "Sun, 1 Jan 2023 14:44:01 GMT", "version": "v2" } ]
2023-08-02
[ [ "Maqingshan", "", "" ], [ "Iminniyaz", "Hoernisa", "" ] ]
We investigate the relic abundance of asymmetric Dark Matter where the asymmetric Dark Matter is non--thermally produced from the decay of heavier particles in addition to the usual thermal production. We discuss the relic density of asymmetric Dark Matter including the decay of heavy particles in low temperature scena...
1208.1899
Alexander Rothkopf
Yannis Burnier and Alexander Rothkopf
Disentangling the timescales behind the non-perturbative heavy quark potential
5 pages, 3 figures
null
10.1103/PhysRevD.86.051503
null
hep-ph hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The static part of the heavy quark potential has been shown to be closely related to the spectrum of the rectangular Wilson loop. In particular the lowest lying positive frequency peak encodes the late time evolution of the two-body system, characterized by a complex potential. While initial studies assumed a perfect...
[ { "created": "Thu, 9 Aug 2012 13:14:01 GMT", "version": "v1" } ]
2013-05-30
[ [ "Burnier", "Yannis", "" ], [ "Rothkopf", "Alexander", "" ] ]
The static part of the heavy quark potential has been shown to be closely related to the spectrum of the rectangular Wilson loop. In particular the lowest lying positive frequency peak encodes the late time evolution of the two-body system, characterized by a complex potential. While initial studies assumed a perfect s...
0904.0542
Vladimir Efrosinin
V.P.Efrosinin
What are the Neutrino Masses
12 pages, 6 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The possible source of the production of neutrino with large masses is considered. For this purpose the reaction nu+n to e+p+gamma, in which the electron in neW+ vertex is produced off-mass-shell, is studied.
[ { "created": "Fri, 3 Apr 2009 10:13:31 GMT", "version": "v1" } ]
2009-04-06
[ [ "Efrosinin", "V. P.", "" ] ]
The possible source of the production of neutrino with large masses is considered. For this purpose the reaction nu+n to e+p+gamma, in which the electron in neW+ vertex is produced off-mass-shell, is studied.
1902.09268
Susana Coito
Susana Coito and Francesco Giacosa
On the origin of the $Y(4260)$
25 pages, 9 figures
Acta Phys.Polon.B 51 (2020) 8, 1713-1737
10.5506/APhysPolB.51.1713
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the relation between the $\psi(4160)$ and the $Y(4260)$ within an unitarized effective Lagrangian approach. The $Y(4260)$ arises as a manifestation of the $\psi(4160)$, when a loop-driven decay of the type $\psi(4160)\to D_s^*\bar{D}_s^*\to J/\psi f_0(980)$ is enhanced by the proximity of the pole, correspon...
[ { "created": "Mon, 25 Feb 2019 14:03:02 GMT", "version": "v1" }, { "created": "Fri, 17 Jan 2020 15:50:39 GMT", "version": "v2" } ]
2020-11-17
[ [ "Coito", "Susana", "" ], [ "Giacosa", "Francesco", "" ] ]
We study the relation between the $\psi(4160)$ and the $Y(4260)$ within an unitarized effective Lagrangian approach. The $Y(4260)$ arises as a manifestation of the $\psi(4160)$, when a loop-driven decay of the type $\psi(4160)\to D_s^*\bar{D}_s^*\to J/\psi f_0(980)$ is enhanced by the proximity of the pole, correspondi...
2102.01085
Christopher Lepenik
Andre H. Hoang, Christopher Lepenik, Vicent Mateu
REvolver: Automated running and matching of couplings and masses in QCD
94 pages + appendices, 6 figures; v2: journal version
null
10.1016/j.cpc.2021.108145
UWThPh-2020-18, IFT-UAM/CSIC-21-5
hep-ph
http://creativecommons.org/licenses/by/4.0/
In this article we present REvolver, a C++ library for renormalization group evolution and automatic flavor matching of the QCD coupling and quark masses, as well as precise conversion between various quark mass renormalization schemes. The library systematically accounts for the renormalization group evolution of lo...
[ { "created": "Mon, 1 Feb 2021 19:00:01 GMT", "version": "v1" }, { "created": "Mon, 27 Sep 2021 21:23:59 GMT", "version": "v2" } ]
2021-09-29
[ [ "Hoang", "Andre H.", "" ], [ "Lepenik", "Christopher", "" ], [ "Mateu", "Vicent", "" ] ]
In this article we present REvolver, a C++ library for renormalization group evolution and automatic flavor matching of the QCD coupling and quark masses, as well as precise conversion between various quark mass renormalization schemes. The library systematically accounts for the renormalization group evolution of low-...
2204.10845
Oliver Scholer
Luk\'a\v{s} Gr\'af, Manfred Lindner, Oliver Scholer
Unraveling the $0\nu\beta\beta$ Decay Mechanisms
53 pages, 22 figures, 6 tables
null
10.1103/PhysRevD.106.035022
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
We discuss the possibilities of distinguishing among different mechanisms of neutrinoless double beta decay arising in the effective field theory framework. Following the review and detailed investigation of the particular ways of discrimination, we conclude that the 32 different low-energy effective operators can be...
[ { "created": "Fri, 22 Apr 2022 17:50:36 GMT", "version": "v1" } ]
2022-08-31
[ [ "Gráf", "Lukáš", "" ], [ "Lindner", "Manfred", "" ], [ "Scholer", "Oliver", "" ] ]
We discuss the possibilities of distinguishing among different mechanisms of neutrinoless double beta decay arising in the effective field theory framework. Following the review and detailed investigation of the particular ways of discrimination, we conclude that the 32 different low-energy effective operators can be s...
hep-ph/0010143
Dmitri Petrov
Dmitri Petrov (1), Richard Easther (1 and 2), Gerald Guralnik (1), Stephen Hahn (1) and Wei-Mun Wang (3) ((1) Brown University, (2) Columbia University, (3) University of Pennsylvania)
Fermions, Gauge Theories, and the Sinc Function Representation for Feynman Diagrams
10 pages, Latex, 9 figures
Phys.Rev. D63 (2001) 105001
10.1103/PhysRevD.63.105001
BROWN-HET-1125
hep-ph hep-lat hep-th
null
We extend our new approach for numeric evaluation of Feynman diagrams to integrals that include fermionic and vector propagators. In this initial discussion we begin by deriving the Sinc function representation for the propagators of spin-1/2 and spin-1 fields and exploring their properties. We show that the attribut...
[ { "created": "Fri, 13 Oct 2000 20:14:58 GMT", "version": "v1" } ]
2009-10-31
[ [ "Petrov", "Dmitri", "", "1 and 2" ], [ "Easther", "Richard", "", "1 and 2" ], [ "Guralnik", "Gerald", "" ], [ "Hahn", "Stephen", "" ], [ "Wang", "Wei-Mun", "" ] ]
We extend our new approach for numeric evaluation of Feynman diagrams to integrals that include fermionic and vector propagators. In this initial discussion we begin by deriving the Sinc function representation for the propagators of spin-1/2 and spin-1 fields and exploring their properties. We show that the attributes...
0904.1416
David Sanford
Jonathan L. Feng, Iftah Galon, David Sanford, Yael Shadmi, Felix Yu
Three-Body Decays of Sleptons with General Flavor Violation and Left-Right Mixing
25 pages, 5 figures; v2: published version
Phys.Rev.D79:116009,2009
10.1103/PhysRevD.79.116009
UCI-TR-2009-07
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We determine the widths of three-body decays of sleptons, $\tilde{l}^- \to \tilde{l}^{\pm} l^- l^{\mp}, \tilde{l}^- \nu \bar{\nu}, \tilde{l}^- q \bar{q}$, in the presence of arbitrary slepton flavor violation and left-right mixing. These decays are important in scenarios in which the lightest supersymmetric particle ...
[ { "created": "Thu, 9 Apr 2009 00:01:28 GMT", "version": "v1" }, { "created": "Tue, 30 Jun 2009 20:02:44 GMT", "version": "v2" } ]
2009-07-09
[ [ "Feng", "Jonathan L.", "" ], [ "Galon", "Iftah", "" ], [ "Sanford", "David", "" ], [ "Shadmi", "Yael", "" ], [ "Yu", "Felix", "" ] ]
We determine the widths of three-body decays of sleptons, $\tilde{l}^- \to \tilde{l}^{\pm} l^- l^{\mp}, \tilde{l}^- \nu \bar{\nu}, \tilde{l}^- q \bar{q}$, in the presence of arbitrary slepton flavor violation and left-right mixing. These decays are important in scenarios in which the lightest supersymmetric particle is...
hep-ph/9810365
Alan Kostelecky
Alan Kostelecky
The Status of CPT
13 pages, talk presented at WEIN '98, Santa Fe, New Mexico, June 1998
null
null
IUHET 397, October 1998
hep-ph
null
A short review is given of some theoretical approaches to CPT violation. A potentially realistic possibility is that small apparent breaking of CPT and Lorentz symmetry could arise at the level of the standard model from spontaneous symmetry breaking in an underlying theory. Some experimental constraints are describe...
[ { "created": "Thu, 15 Oct 1998 01:07:40 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kostelecky", "Alan", "" ] ]
A short review is given of some theoretical approaches to CPT violation. A potentially realistic possibility is that small apparent breaking of CPT and Lorentz symmetry could arise at the level of the standard model from spontaneous symmetry breaking in an underlying theory. Some experimental constraints are described.
1104.1973
Redamy Perez Ramos
Redamy Perez Ramos (IFIC), Vincent Mathieu (IFIC), Miguel-Angel Sanchis-Lozano (IFIC)
Three-particle correlations in QCD parton showers
9 pages and 5 figures. Version published by Physical Review D with reference: Phys. Rev. D 84, 034015 (2011). Two more figures and one section added
Phys.Rev.D84:034015,2011
10.1103/PhysRevD.84.034015
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Three-particle correlations in quark and gluon jets are computed for the first time in perturbative QCD. We give results in the double logarithmic approximation and the modified leading logarithmic approximation. In both resummation schemes, we use the formalism of the generating functional and solve the evolution eq...
[ { "created": "Mon, 11 Apr 2011 15:15:52 GMT", "version": "v1" }, { "created": "Wed, 20 Apr 2011 06:05:26 GMT", "version": "v2" }, { "created": "Wed, 7 Sep 2011 19:38:12 GMT", "version": "v3" } ]
2011-09-08
[ [ "Ramos", "Redamy Perez", "", "IFIC" ], [ "Mathieu", "Vincent", "", "IFIC" ], [ "Sanchis-Lozano", "Miguel-Angel", "", "IFIC" ] ]
Three-particle correlations in quark and gluon jets are computed for the first time in perturbative QCD. We give results in the double logarithmic approximation and the modified leading logarithmic approximation. In both resummation schemes, we use the formalism of the generating functional and solve the evolution equa...
hep-ph/0009171
Ove Scavenius
O. Scavenius, A. Dumitru, E.S. Fraga, J.T. Lenaghan, A.D. Jackson
First-Order Chiral Phase Transition in High-Energy Collisions: Can Nucleation Prevent Spinodal Decomposition?
11 pages, latex, 10 figures, revised version added: 2 figures, references and an extended discussion. Accepted for publication in PRD
Phys.Rev. D63 (2001) 116003
10.1103/PhysRevD.63.116003
null
hep-ph nucl-th
null
We discuss homogeneous nucleation in a first-order chiral phase transition within an effective field theory approach to low-energy QCD. Exact decay rates and bubble profiles are obtained numerically and compared to analytic results obtained with the thin-wall approximation. The thin-wall approximation overestimates t...
[ { "created": "Thu, 14 Sep 2000 17:00:14 GMT", "version": "v1" }, { "created": "Mon, 26 Feb 2001 16:47:10 GMT", "version": "v2" } ]
2009-10-31
[ [ "Scavenius", "O.", "" ], [ "Dumitru", "A.", "" ], [ "Fraga", "E. S.", "" ], [ "Lenaghan", "J. T.", "" ], [ "Jackson", "A. D.", "" ] ]
We discuss homogeneous nucleation in a first-order chiral phase transition within an effective field theory approach to low-energy QCD. Exact decay rates and bubble profiles are obtained numerically and compared to analytic results obtained with the thin-wall approximation. The thin-wall approximation overestimates the...
0802.4098
Peter Graham
Savas Dimopoulos, Peter W. Graham, Jason M. Hogan, Mark A. Kasevich
General Relativistic Effects in Atom Interferometry
34 pages, 7 figures; v2: revised version to appear in Phys. Rev. D
Phys.Rev.D78:042003,2008
10.1103/PhysRevD.78.042003
null
hep-ph gr-qc hep-th physics.atom-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Atom interferometry is now reaching sufficient precision to motivate laboratory tests of general relativity. We begin by explaining the non-relativistic calculation of the phase shift in an atom interferometer and deriving its range of validity. From this we develop a method for calculating the phase shift in general...
[ { "created": "Thu, 28 Feb 2008 19:12:44 GMT", "version": "v1" }, { "created": "Tue, 26 Aug 2008 14:12:00 GMT", "version": "v2" } ]
2008-11-26
[ [ "Dimopoulos", "Savas", "" ], [ "Graham", "Peter W.", "" ], [ "Hogan", "Jason M.", "" ], [ "Kasevich", "Mark A.", "" ] ]
Atom interferometry is now reaching sufficient precision to motivate laboratory tests of general relativity. We begin by explaining the non-relativistic calculation of the phase shift in an atom interferometer and deriving its range of validity. From this we develop a method for calculating the phase shift in general r...
2402.14725
Juan Antonio Aguilar-Saavedra
J. A. Aguilar-Saavedra
Full quantum tomography of top quark decays
LaTeX 14 pages. Added systematics and discussions. Final version in PLB
null
null
IFT-UAM/CSIC-24-20
hep-ph hep-ex quant-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Quantum tomography in high-energy physics processes has usually been restricted to the spin degrees of freedom. We address the case of top quark decays $t \to W b$, in which the orbital angular momentum ($L$) and the spins of $W$ and $b$ are intertwined into a 54-dimensional $LWb$ density operator. The entanglement b...
[ { "created": "Thu, 22 Feb 2024 17:33:33 GMT", "version": "v1" }, { "created": "Thu, 11 Jul 2024 13:09:59 GMT", "version": "v2" } ]
2024-07-12
[ [ "Aguilar-Saavedra", "J. A.", "" ] ]
Quantum tomography in high-energy physics processes has usually been restricted to the spin degrees of freedom. We address the case of top quark decays $t \to W b$, in which the orbital angular momentum ($L$) and the spins of $W$ and $b$ are intertwined into a 54-dimensional $LWb$ density operator. The entanglement bet...
hep-ph/9901409
Andrzej J. Buras
Andrzej J. Buras
Operator Product Expansion, Renormalization Group and Weak Decays
latex-file and 5 figures, 24 pages. Dedicated to the 70th birthday of Wolfhart Zimmermann
Lect.Notes Phys.558:65-85,2000
null
TUM-HEP-343/99
hep-ph
null
A non-technical description of the Operator Product Expansion and Renormalization Group techniques as applied to weak decays of mesons is presented. We use this opportunity to summarize briefly the present status of the next-to-leading QCD corrections to weak decays and their implications for the unitarity triangle, ...
[ { "created": "Tue, 26 Jan 1999 07:36:42 GMT", "version": "v1" } ]
2014-11-17
[ [ "Buras", "Andrzej J.", "" ] ]
A non-technical description of the Operator Product Expansion and Renormalization Group techniques as applied to weak decays of mesons is presented. We use this opportunity to summarize briefly the present status of the next-to-leading QCD corrections to weak decays and their implications for the unitarity triangle, th...
hep-ph/9612221
Carlos Lourenco
C. Lourenco (for the ALICE Coll.)
Heavy Ion Collisions at the LHC; the ALICE Experiment
6 pages, 3 figures, LaTeX, uses packages graphicx,epsfig,amsmath,amssymb,cite,xspace,float
null
null
LIP/96-02
hep-ph
null
ALICE (A Large Ion Collider Experiment) is a detector designed to exploit the physics potential of nucleus-nucleus interactions at the LHC. Being a general purpose experiment, it will allow a comprehensive study of hadrons, electrons, muons and photons, produced in the collision of heavy nuclei, up to the highest par...
[ { "created": "Sun, 1 Dec 1996 22:58:09 GMT", "version": "v1" } ]
2016-09-06
[ [ "Lourenco", "C.", "", "for the ALICE Coll." ] ]
ALICE (A Large Ion Collider Experiment) is a detector designed to exploit the physics potential of nucleus-nucleus interactions at the LHC. Being a general purpose experiment, it will allow a comprehensive study of hadrons, electrons, muons and photons, produced in the collision of heavy nuclei, up to the highest parti...
hep-ph/0212085
Dimitar Stamenov
E. Leader, A.V. Sidorov, D.B. Stamenov
On the Role of Higher Twist in Polarized Deep Inelastic Scattering
18 pages, latex, 6 figures, final version which will be published in Phys. Rev. D, fig. 5 is changed, misprints in Table 2 are removed
Phys.Rev. D67 (2003) 074017
10.1103/PhysRevD.67.074017
null
hep-ph hep-ex
null
The higher twist corrections $h^N(x)/Q^2$ to the spin dependent proton and neutron structure functions $g_1^N(x, Q^2)$ are extracted in a model independent way from experimental data on $g_1^N$ and found to be non-negligible. It is shown that the NLO QCD polarized parton densities determined from the data on g1, incl...
[ { "created": "Thu, 5 Dec 2002 16:35:06 GMT", "version": "v1" }, { "created": "Wed, 12 Feb 2003 13:11:27 GMT", "version": "v2" } ]
2009-11-07
[ [ "Leader", "E.", "" ], [ "Sidorov", "A. V.", "" ], [ "Stamenov", "D. B.", "" ] ]
The higher twist corrections $h^N(x)/Q^2$ to the spin dependent proton and neutron structure functions $g_1^N(x, Q^2)$ are extracted in a model independent way from experimental data on $g_1^N$ and found to be non-negligible. It is shown that the NLO QCD polarized parton densities determined from the data on g1, includ...
0710.2601
Osamu Yasuda
Osamu Yasuda
New Physics Effects in Long Baseline Experiments
Invited talk at the XXXI International Conference of Theoretical Physics "Matter To The Deepest: Recent Developments In Physics of Fundamental Interactions", Ustron, 5-11 September 2007, Poland. 7 pages (uses appolb.cls), includes 7 figures
ActaPhys.Polon.B38:3381-3388,2007
null
null
hep-ph
null
We discuss the implications of new physics, which modifies the matter effect in neutrino oscillations, to long baseline experiments, particularly the MINOS experiment. An analytic formula in the presence of such a new physics interaction is derived for $P(\nu_\mu\to\nu_e)$, which is exact in the limit $\Delta m^2_{21...
[ { "created": "Sat, 13 Oct 2007 11:35:06 GMT", "version": "v1" } ]
2008-11-26
[ [ "Yasuda", "Osamu", "" ] ]
We discuss the implications of new physics, which modifies the matter effect in neutrino oscillations, to long baseline experiments, particularly the MINOS experiment. An analytic formula in the presence of such a new physics interaction is derived for $P(\nu_\mu\to\nu_e)$, which is exact in the limit $\Delta m^2_{21}\...
hep-ph/0203245
Alexander Dolgov
A.D. Dolgov
Mystery of Vacuum Energy or Rise and Fall of Cosmological Constant
12 pages; contribution to M. Novello Festschrift
null
null
null
hep-ph
null
Two sides of cosmological constant problem are discussed: a mysterious compensation of all contributions to vacuum energy with the accuracy of 100-50 orders of magnitude and a surprising equality of a constant vacuum energy density to the present-day value of time dependent cosmological energy density.
[ { "created": "Tue, 26 Mar 2002 16:08:27 GMT", "version": "v1" } ]
2007-05-23
[ [ "Dolgov", "A. D.", "" ] ]
Two sides of cosmological constant problem are discussed: a mysterious compensation of all contributions to vacuum energy with the accuracy of 100-50 orders of magnitude and a surprising equality of a constant vacuum energy density to the present-day value of time dependent cosmological energy density.
0712.4206
Michel Tytgat
Michel H.G. Tytgat
The Inert Doublet Model : a new archetype of WIMP dark matter?
Contribution the 10th International Conference on Topics in Astroparticle and Underground Physics (TAUP 2007), Sendai, Japan, 11-15 Sep 2007
J.Phys.Conf.Ser.120:042026,2008
10.1088/1742-6596/120/4/042026
null
hep-ph astro-ph
null
The Inert Doublet Model (IDM) is a two doublet extension of the Higgs-Brout-Englert sector of the Standard Model with a Z_2 symmetry in order to prevent FCNC. If the Z_2 symmetry is not spontaneously broken, the lightest neutral extra scalar is a dark matter candidate. We briefly review the phenomenology of the model...
[ { "created": "Thu, 27 Dec 2007 09:31:41 GMT", "version": "v1" } ]
2008-11-26
[ [ "Tytgat", "Michel H. G.", "" ] ]
The Inert Doublet Model (IDM) is a two doublet extension of the Higgs-Brout-Englert sector of the Standard Model with a Z_2 symmetry in order to prevent FCNC. If the Z_2 symmetry is not spontaneously broken, the lightest neutral extra scalar is a dark matter candidate. We briefly review the phenomenology of the model, ...
1503.02055
Christian Weiss
C. Granados and C. Weiss
Quantum-mechanical picture of peripheral chiral dynamics
4 pages, 4 figures
Phys. Rev. C 92, 025206 (2015)
10.1103/PhysRevC.92.025206
JLAB-THY-15-2016
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The nucleon's peripheral transverse charge and magnetization densities are computed in chiral effective field theory. The densities are represented in first-quantized form, as overlap integrals of chiral light-front wave functions describing the transition of the nucleon to soft pion-nucleon intermediate states. The ...
[ { "created": "Fri, 6 Mar 2015 20:25:11 GMT", "version": "v1" } ]
2015-09-02
[ [ "Granados", "C.", "" ], [ "Weiss", "C.", "" ] ]
The nucleon's peripheral transverse charge and magnetization densities are computed in chiral effective field theory. The densities are represented in first-quantized form, as overlap integrals of chiral light-front wave functions describing the transition of the nucleon to soft pion-nucleon intermediate states. The or...
hep-ph/9303290
David London
David London
Exotic Fermions
23 pages, LaTeX, to be published in "Precision Tests of the Standard Model", 1993, ed. Paul Langacker (World Scientific), UdeM-LPN-TH131
null
null
null
hep-ph
null
I review the current limits on the mixing of ordinary and exotic fermions.
[ { "created": "Mon, 22 Mar 1993 22:26:32 GMT", "version": "v1" } ]
2007-05-23
[ [ "London", "David", "" ] ]
I review the current limits on the mixing of ordinary and exotic fermions.
hep-ph/9809372
null
P. Colangelo, F. De Fazio, M. Ladisa, G. Nardulli, P. Santorelli, A. Tricarico
Semileptonic and Rare $B$-meson transitions in a QCD relativistic potential model
Latex, 19 pages, 3 figures
Eur.Phys.J.C8:81-90,1999
10.1007/s100529901060
BARI-TH/98-307
hep-ph
null
Using a QCD relativistic potential model, previously applied to the calculation of the heavy meson leptonic constants, we evaluate the form factors governing the exclusive decays $B\to\rho\ell\nu$, $B\to K^*\gamma$ and $B\to K^*\ell^+\ell^-$. In our approach the heavy meson is described as a $Q\bar q$ bound state, wh...
[ { "created": "Mon, 14 Sep 1998 12:47:45 GMT", "version": "v1" } ]
2011-09-13
[ [ "Colangelo", "P.", "" ], [ "De Fazio", "F.", "" ], [ "Ladisa", "M.", "" ], [ "Nardulli", "G.", "" ], [ "Santorelli", "P.", "" ], [ "Tricarico", "A.", "" ] ]
Using a QCD relativistic potential model, previously applied to the calculation of the heavy meson leptonic constants, we evaluate the form factors governing the exclusive decays $B\to\rho\ell\nu$, $B\to K^*\gamma$ and $B\to K^*\ell^+\ell^-$. In our approach the heavy meson is described as a $Q\bar q$ bound state, whos...
hep-ph/0211182
Park Jae-hyeon
P. Ko, G. Kramer, Jae-hyeon Park
B0 - B0 bar mixing, B -> J/psi K_S and B -> X_d gamma in general MSSM
Talk presented by P. Ko at SUSY02, Hamburg, June 2002, to appear in Proceedings
Eur.Phys.J. C25 (2002) 615-622
10.1140/epjc/s2002-01029-x
KAIST-TH 2002/22, MCTP-02-58
hep-ph
null
We consider the gluino-mediated SUSY contributions to B0 - B0 bar mixing, B -> J/psi K_S and B -> X_d gamma in the mass insertion approximation. We find the (LL) mixing parameter can be as large as |delta_{13}^d_{LL}| < 2*10^-1, but the (LR) mixing is strongly constrained by the B -> X_d gamma branching ratio and we ...
[ { "created": "Tue, 12 Nov 2002 18:42:09 GMT", "version": "v1" } ]
2009-11-07
[ [ "Ko", "P.", "" ], [ "Kramer", "G.", "" ], [ "Park", "Jae-hyeon", "" ] ]
We consider the gluino-mediated SUSY contributions to B0 - B0 bar mixing, B -> J/psi K_S and B -> X_d gamma in the mass insertion approximation. We find the (LL) mixing parameter can be as large as |delta_{13}^d_{LL}| < 2*10^-1, but the (LR) mixing is strongly constrained by the B -> X_d gamma branching ratio and we fi...
hep-ph/9908305
Fernando Quevedo
Luis Ibanez and Fernando Quevedo
Anomalous U(1)'s and Proton Stability in Brane Models
19 pages, Latex. Typos corrected and references added
JHEP 9910 (1999) 001
10.1088/1126-6708/1999/10/001
FTUAM-99/4, IFT-UAM/CSIC-99-4, DAMTP-1999-91
hep-ph hep-th
null
We consider the most general generation-independent U(1) gauge symmetry consistent with the presence of Yukawa couplings for all quarks and leptons in the SUSY version of the Standard Model. This U(1) has generically mixed anomalies with SM groups, which cannot be cancelled by the Green-Schwarz mechanism of heterotic...
[ { "created": "Mon, 9 Aug 1999 14:53:40 GMT", "version": "v1" }, { "created": "Fri, 8 Oct 1999 15:13:52 GMT", "version": "v2" } ]
2009-10-31
[ [ "Ibanez", "Luis", "" ], [ "Quevedo", "Fernando", "" ] ]
We consider the most general generation-independent U(1) gauge symmetry consistent with the presence of Yukawa couplings for all quarks and leptons in the SUSY version of the Standard Model. This U(1) has generically mixed anomalies with SM groups, which cannot be cancelled by the Green-Schwarz mechanism of heterotic D...
hep-ph/9408290
Matthias Neubert
M. Neubert
Theoretical Update on the Model-Independent Determination of |V_{cb}| Using Heavy Quark Symmetry
11 pages LaTeX, 2 figures. Revision - minor typographic changes made
Phys.Lett.B338:84-91,1994
10.1016/0370-2693(94)91348-X
CERN-TH.7395/94
hep-ph
null
In view of new precise measurements of the $\bar B\to D^*\ell \bar\nu$ decay rate near zero recoil, we reconsider the theoretical uncertainties in the extraction of $| V_{cb}|$ using heavy quark symmetry. In particular, we combine our previous estimate of $1/m_Q^2$ corrections to the normalization of the hadronic for...
[ { "created": "Mon, 15 Aug 1994 12:30:02 GMT", "version": "v1" }, { "created": "Mon, 22 Aug 1994 10:13:52 GMT", "version": "v2" } ]
2010-11-01
[ [ "Neubert", "M.", "" ] ]
In view of new precise measurements of the $\bar B\to D^*\ell \bar\nu$ decay rate near zero recoil, we reconsider the theoretical uncertainties in the extraction of $| V_{cb}|$ using heavy quark symmetry. In particular, we combine our previous estimate of $1/m_Q^2$ corrections to the normalization of the hadronic form ...
hep-ph/0112201
Jean-Paul Blaizot
Jean-Paul Blaizot
The Entropy of the Quark-Gluon Plasma
Talk given at "Statistical QCD", Bielefeld, August 26-30, 2001, 12 pages, 3 figures
Nucl.Phys.A702:99-110,2002
10.1016/S0375-9474(02)00692-9
T01/133
hep-ph
null
The entropy of the quark-gluon plasma can be calculated from QCD using (approximately) self-consistent approximations. Lattice results for pure gauge theories are accurately reproduced down to temperatures of the order of 2.5$T_c$. Comparisons with other approaches to the thermodynamics of the quark-gluon plasma are ...
[ { "created": "Fri, 14 Dec 2001 15:39:17 GMT", "version": "v1" } ]
2014-11-17
[ [ "Blaizot", "Jean-Paul", "" ] ]
The entropy of the quark-gluon plasma can be calculated from QCD using (approximately) self-consistent approximations. Lattice results for pure gauge theories are accurately reproduced down to temperatures of the order of 2.5$T_c$. Comparisons with other approaches to the thermodynamics of the quark-gluon plasma are br...
hep-ph/0107054
Anna Rossi
Zurab Berezhiani (L'Aquila & Tbilisi U.) and Anna Rossi (Padova U.)
Flavour structure, flavour symmetry and supersymmetry
12 LaTeX pages. Talk presented at the Int. Workshop `30 Years of Supersymmetry', Minneapolis, USA, 13-27 Oct. 2000. To appear in Nucl. Phys. Proc. Suppl
Nucl.Phys.Proc.Suppl.101:410-420,2001
10.1016/S0920-5632(01)01527-4
DFAQ-01/TH/01, DFPD-01/TH/23
hep-ph
null
We discuss the role played by the horizontal flavour symmetry in supersymmetric theories. In particular, we consider the horizontal symmetry $SU(3)_H$ between the three fermion families and show how this concept can help in explaining the fermion mass spectrum and mixing pattern in the context of SUSY GUTs.
[ { "created": "Thu, 5 Jul 2001 17:00:38 GMT", "version": "v1" } ]
2010-05-28
[ [ "Berezhiani", "Zurab", "", "L'Aquila & Tbilisi U." ], [ "Rossi", "Anna", "", "Padova U." ] ]
We discuss the role played by the horizontal flavour symmetry in supersymmetric theories. In particular, we consider the horizontal symmetry $SU(3)_H$ between the three fermion families and show how this concept can help in explaining the fermion mass spectrum and mixing pattern in the context of SUSY GUTs.
1610.07243
Christoph Peter Hofmann
Christoph P. Hofmann
Quantum Chromodynamics, Antiferromagnets and XY Models from a Unified Point of View
31 pages, 10 figures
null
10.1016/j.nuclphysb.2017.01.007
null
hep-ph cond-mat.str-el hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Antiferromagnets and quantum XY magnets in three space dimensions are described by an effective Lagrangian that exhibits the same structure as the effective Lagrangian of quantum chromodynamics with two light flavors. These systems all share a spontaneously broken internal symmetry O($N$) $\to$ O($N$-1). Although the...
[ { "created": "Sun, 23 Oct 2016 22:37:07 GMT", "version": "v1" } ]
2017-03-08
[ [ "Hofmann", "Christoph P.", "" ] ]
Antiferromagnets and quantum XY magnets in three space dimensions are described by an effective Lagrangian that exhibits the same structure as the effective Lagrangian of quantum chromodynamics with two light flavors. These systems all share a spontaneously broken internal symmetry O($N$) $\to$ O($N$-1). Although the r...
2208.05442
Bai-Cian Ke
Yao Yu, Xiong Zhuang, Han Zhang, Bai-Cian Ke, Yi Teng, and Qing-Shan Liu
Investigating $\eta^\prime_{1}(1855)$ exotic states in $J/\psi\to\eta^\prime_{1}(1855)\eta^{(\prime)}$ decays
Accepted by Physics Letters B
Physics Letters B 842 (2023) 137965
10.1016/j.physletb.2023.137965
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
An analysis of the $J/\psi\to \eta\eta^\prime\gamma$ decay by the BESIII collaboration claims the observation of an exotic state $\eta_1(1855)$ with $I^GJ^{PC}=0^+1^{-+}$. To establish its C-parity partner $\eta^\prime_{1}(1855)$ in the picture of the $K \bar{K}_1(1400)$ molecular state, we propose that $J/\psi\to\et...
[ { "created": "Wed, 10 Aug 2022 16:53:44 GMT", "version": "v1" }, { "created": "Sun, 14 May 2023 03:01:25 GMT", "version": "v2" } ]
2023-06-09
[ [ "Yu", "Yao", "" ], [ "Zhuang", "Xiong", "" ], [ "Zhang", "Han", "" ], [ "Ke", "Bai-Cian", "" ], [ "Teng", "Yi", "" ], [ "Liu", "Qing-Shan", "" ] ]
An analysis of the $J/\psi\to \eta\eta^\prime\gamma$ decay by the BESIII collaboration claims the observation of an exotic state $\eta_1(1855)$ with $I^GJ^{PC}=0^+1^{-+}$. To establish its C-parity partner $\eta^\prime_{1}(1855)$ in the picture of the $K \bar{K}_1(1400)$ molecular state, we propose that $J/\psi\to\eta^...
2302.09282
Bhag C. Chauhan
Rishu Verma, Ankush and B. C. Chauhan
Dark Matter and $(g-2)_{e,\mu}$ in ISS(2,3) based Gauged $U(1)_{L_{e}-L{\mu}}$ Symmetric Model
16 pages, 4 figures, 2 tables
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We proposed a model which can explain the neutrino phenomenology, dark matter and anomalous magnetic moment$(g-2)$ in a common framework. The inverted sea saw (ISS)(2,3) mechanism has been incorporated, in which we get an extra sterile state and this state act as a viable dark matter candidate. The right handed neutr...
[ { "created": "Sat, 18 Feb 2023 10:36:59 GMT", "version": "v1" } ]
2023-02-21
[ [ "Verma", "Rishu", "" ], [ "Ankush", "", "" ], [ "Chauhan", "B. C.", "" ] ]
We proposed a model which can explain the neutrino phenomenology, dark matter and anomalous magnetic moment$(g-2)$ in a common framework. The inverted sea saw (ISS)(2,3) mechanism has been incorporated, in which we get an extra sterile state and this state act as a viable dark matter candidate. The right handed neutrin...
hep-ph/0106298
Sven-Olaf Moch
J.H. K\"uhn, S. Moch, A.A. Penin, V.A. Smirnov
Next-to-Next-to-Leading Logarithms in Four-Fermion Electroweak Processes at High Energy
latex, 20 pages; coupling constant in the fermionic contribution to the electroweak corrections corrected
Nucl.Phys. B616 (2001) 286-306; Erratum-ibid. B648 (2003) 455-456
10.1016/S0550-3213(01)00454-0
DESY/01-086, TTP01-15
hep-ph
null
We sum up the next-to-next-to-leading logarithmic virtual electroweak corrections to the high energy asymptotics of the neutral current four-fermion processes for light fermions to all orders in the coupling constants using the evolution equation approach. From this all order result we derive finite order expressions...
[ { "created": "Wed, 27 Jun 2001 08:12:14 GMT", "version": "v1" }, { "created": "Fri, 18 Oct 2002 16:34:13 GMT", "version": "v2" }, { "created": "Fri, 22 Apr 2005 17:11:55 GMT", "version": "v3" } ]
2009-11-07
[ [ "Kühn", "J. H.", "" ], [ "Moch", "S.", "" ], [ "Penin", "A. A.", "" ], [ "Smirnov", "V. A.", "" ] ]
We sum up the next-to-next-to-leading logarithmic virtual electroweak corrections to the high energy asymptotics of the neutral current four-fermion processes for light fermions to all orders in the coupling constants using the evolution equation approach. From this all order result we derive finite order expressions t...
2407.12975
Ka\u{g}an \c{S}im\c{s}ek
Radja Boughezal, Frank Petriello, Ka\u{g}an \c{S}im\c{s}ek
Transverse spin asymmetries and the electron Yukawa coupling at an FCC-ee
18 pages, 5 figures
null
null
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
We show that measurements of single transverse-spin asymmetries at an $e^+e^-$ collider can enhance the sensitivity to the electron Yukawa coupling, possibly enabling observation of the Standard Model value for this quantity. We demonstrate that the significance in both the $b\bar{b}$ and semi-leptonic $WW$ final sta...
[ { "created": "Wed, 17 Jul 2024 19:44:42 GMT", "version": "v1" }, { "created": "Fri, 19 Jul 2024 15:21:41 GMT", "version": "v2" } ]
2024-07-22
[ [ "Boughezal", "Radja", "" ], [ "Petriello", "Frank", "" ], [ "Şimşek", "Kağan", "" ] ]
We show that measurements of single transverse-spin asymmetries at an $e^+e^-$ collider can enhance the sensitivity to the electron Yukawa coupling, possibly enabling observation of the Standard Model value for this quantity. We demonstrate that the significance in both the $b\bar{b}$ and semi-leptonic $WW$ final state...
0912.1599
Mathew McCaskey
Gardner Marshall, Mathew McCaskey, Marc Sher
A Supersymmetric Model with Dirac Neutrino Masses
18 pages, 3 figures, 6 tables; PRD version
Phys.Rev.D81:053006,2010
10.1103/PhysRevD.81.053006
MAD-PH-09-1551
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
New models have recently been proposed in which a second Higgs doublet couples only to the lepton doublets and right-handed neutrinos, yielding Dirac neutrino masses. The vacuum value of this second "nu-Higgs" doublet is made very small by means of a very softly-broken $Z_2$ or U(1) symmetry. The latter is technicall...
[ { "created": "Tue, 8 Dec 2009 22:08:36 GMT", "version": "v1" }, { "created": "Thu, 18 Mar 2010 16:50:02 GMT", "version": "v2" } ]
2010-03-19
[ [ "Marshall", "Gardner", "" ], [ "McCaskey", "Mathew", "" ], [ "Sher", "Marc", "" ] ]
New models have recently been proposed in which a second Higgs doublet couples only to the lepton doublets and right-handed neutrinos, yielding Dirac neutrino masses. The vacuum value of this second "nu-Higgs" doublet is made very small by means of a very softly-broken $Z_2$ or U(1) symmetry. The latter is technically ...
2303.04965
Salvador Alejandro Ochoa Oregon Salvador A. Ochoa Oregon
Salvador A. Ochoa-Oregon, David F. Renter\'ia-Estrada, Roger J. Hern\'andez-Pinto and German F. R. Sborlini
Constraining fragmentation functions through hadron-photon production at higher-orders
13 pages, 10 figures
null
10.1103/PhysRevD.107.096002
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
In certain situations, such as one-particle inclusive processes, it is possible to model the hadronization through Fragmentation Functions (FFs), which are universal non-perturbative functions extracted from experimental data through advanced fitting techniques. Constraining the parameters of such fits is crucial to ...
[ { "created": "Thu, 9 Mar 2023 00:54:46 GMT", "version": "v1" } ]
2023-05-17
[ [ "Ochoa-Oregon", "Salvador A.", "" ], [ "Rentería-Estrada", "David F.", "" ], [ "Hernández-Pinto", "Roger J.", "" ], [ "Sborlini", "German F. R.", "" ] ]
In certain situations, such as one-particle inclusive processes, it is possible to model the hadronization through Fragmentation Functions (FFs), which are universal non-perturbative functions extracted from experimental data through advanced fitting techniques. Constraining the parameters of such fits is crucial to re...
0802.2530
Zhi-Hui Guo
Zhi-Hui Guo
Resonance sum rules from large $N_C$ and partial wave dispersive analysis
4 pages, contribution to the Workshop on "Scalar meson and Related topics" (Scadron 70), during Feb 11-16, 2008, at IST, Lisbon, Portugal
null
10.1063/1.2973540
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Combining large $N_C$ techniques and partial wave dispersion theory to analyze the $\pi\pi$ scattering, without relying on any explicit resonance lagrangian, some interesting results are derived: (a) a general KSRF relation including the scalar meson contribution; (b) a new relation between resonance couplings, with ...
[ { "created": "Mon, 18 Feb 2008 18:45:51 GMT", "version": "v1" } ]
2009-11-13
[ [ "Guo", "Zhi-Hui", "" ] ]
Combining large $N_C$ techniques and partial wave dispersion theory to analyze the $\pi\pi$ scattering, without relying on any explicit resonance lagrangian, some interesting results are derived: (a) a general KSRF relation including the scalar meson contribution; (b) a new relation between resonance couplings, with wh...
2005.14417
Jose Antonio Oller
J. A. Oller
Unitarization Technics in Hadron Physics with Historical Remarks
45 pages, 2 figures. Invited contribution to a special issue on "Effective Field Theories - Chiral Perturbation Theory and Non-relativistic QFT". Updated to match the published version
null
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We review a series of unitarization techniques that have been used during the last decades, many of them in connection with the advent and development of current algebra and later of Chiral Perturbation Theory. Several methods are discussed like the generalized effective-range expansion, K-matrix approach, Inverse Am...
[ { "created": "Fri, 29 May 2020 06:51:39 GMT", "version": "v1" }, { "created": "Tue, 30 Jun 2020 19:14:32 GMT", "version": "v2" } ]
2020-07-02
[ [ "Oller", "J. A.", "" ] ]
We review a series of unitarization techniques that have been used during the last decades, many of them in connection with the advent and development of current algebra and later of Chiral Perturbation Theory. Several methods are discussed like the generalized effective-range expansion, K-matrix approach, Inverse Ampl...
hep-ph/0404033
Gabriella Piccinelli
Gabriella Piccinelli (1) and Alejandro Ayala (2) ((1)Centro Tecnologico Aragon UNAM, Mexico; (2)Instituto de Ciencias Nucleares UNAM, Mexico)
Electroweak baryogenesis and primordial hypermagnetic fields
16 pages, 2 figures, to appear in "The early universe and observational cosmology", eds. N. Breton, J.L. Cervantes-Cota, M. Salgado, Lecture Notes in Physics, Springer-Verlag (ISBN 3-540-21847-5)
Lect.Notes Phys. 646 (2004) 293-308
10.1007/b97189
null
hep-ph astro-ph
null
The origin of the matter-antimatter asymmetry of the universe remains one of the outstanding questions yet to be answered by modern cosmology and also one of only a handful of problems where the need of a larger number of degrees of freedom than those contained in the standard model (SM) is better illustrated. An app...
[ { "created": "Sun, 4 Apr 2004 03:34:36 GMT", "version": "v1" } ]
2017-08-23
[ [ "Piccinelli", "Gabriella", "" ], [ "Ayala", "Alejandro", "" ] ]
The origin of the matter-antimatter asymmetry of the universe remains one of the outstanding questions yet to be answered by modern cosmology and also one of only a handful of problems where the need of a larger number of degrees of freedom than those contained in the standard model (SM) is better illustrated. An appea...
hep-ph/0505020
Cai-Dian Lu
Bi-Hai Hong and Cai-Dian Lu
Direct CP Violation in Hadronic B Decays
11 pages, 3 figures, revtex4, Talk given at the Workshop on the Frontiers of Theoretical Physics and Cross-Disciplinary, NSFC, Beijing, March 2005
Sci. China G49:357-366,2006
10.1007/s11433-006-0357-z
null
hep-ph hep-ex
null
There are different approaches for the hadronic B decay calculations, recently. In this paper, we upgrade three of them, namely factorization, QCD factorization and the perturbative QCD approach based on $k_T$ factorization, by using new parameters and full wave functions. Although they get similar results for many...
[ { "created": "Tue, 3 May 2005 19:23:17 GMT", "version": "v1" }, { "created": "Tue, 23 Aug 2005 08:19:28 GMT", "version": "v2" }, { "created": "Thu, 10 Nov 2005 00:48:28 GMT", "version": "v3" } ]
2011-07-19
[ [ "Hong", "Bi-Hai", "" ], [ "Lu", "Cai-Dian", "" ] ]
There are different approaches for the hadronic B decay calculations, recently. In this paper, we upgrade three of them, namely factorization, QCD factorization and the perturbative QCD approach based on $k_T$ factorization, by using new parameters and full wave functions. Although they get similar results for many of ...
1903.09566
Zhi-zhong Xing
Zhi-zhong Xing
A U-spin prediction for the CP-forbidden transition $e^+ e^- \to D^0\bar{D}^0 \to (K^+ K^-)_D (\pi^+ \pi^-)_D$
7 pages, 2 figures. Modified version accepted for publication
null
10.1142/S0217732319502389
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The LHCb Collaboration has recently reported the discovery of direct CP violation in combined $D^0 \to K^+ K^-$ and $D^0 \to \pi^+ \pi^-$ decay modes at the $5.3 \sigma$ level. Assuming U-spin symmetry (i.e., $d \leftrightarrow s$ interchange symmetry) for the strong-interaction parts of these two channels, we find t...
[ { "created": "Fri, 22 Mar 2019 15:47:15 GMT", "version": "v1" }, { "created": "Tue, 26 Mar 2019 13:04:36 GMT", "version": "v2" }, { "created": "Fri, 29 Mar 2019 10:49:38 GMT", "version": "v3" }, { "created": "Sat, 18 May 2019 13:01:15 GMT", "version": "v4" } ]
2019-10-23
[ [ "Xing", "Zhi-zhong", "" ] ]
The LHCb Collaboration has recently reported the discovery of direct CP violation in combined $D^0 \to K^+ K^-$ and $D^0 \to \pi^+ \pi^-$ decay modes at the $5.3 \sigma$ level. Assuming U-spin symmetry (i.e., $d \leftrightarrow s$ interchange symmetry) for the strong-interaction parts of these two channels, we find tha...
0910.3477
Ryo Takahasi
Tatsuo Kobayashi, Yuichiro Nakai, Ryo Takahashi
Fine Tuning in General Gauge Mediation
22 pages, 16 figures, comment added
JHEP 1001:003,2010
10.1007/JHEP01(2010)003
KUNS-2235, YITP-09-62
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the fine-tuning problem in the context of general gauge mediation. Numerical analyses toward for relaxing fine-tuning are presented. We analyse the problem in typical three cases of the messenger scale, that is, GUT ($2\times10^{16}$ GeV), intermediate ($10^{10}$ GeV), and relatively low energy ($10^6$ GeV) ...
[ { "created": "Mon, 19 Oct 2009 08:23:31 GMT", "version": "v1" }, { "created": "Mon, 26 Oct 2009 12:29:16 GMT", "version": "v2" }, { "created": "Mon, 30 Nov 2009 08:57:49 GMT", "version": "v3" } ]
2010-02-17
[ [ "Kobayashi", "Tatsuo", "" ], [ "Nakai", "Yuichiro", "" ], [ "Takahashi", "Ryo", "" ] ]
We study the fine-tuning problem in the context of general gauge mediation. Numerical analyses toward for relaxing fine-tuning are presented. We analyse the problem in typical three cases of the messenger scale, that is, GUT ($2\times10^{16}$ GeV), intermediate ($10^{10}$ GeV), and relatively low energy ($10^6$ GeV) sc...
hep-ph/9912459
Cliff Burgess
C.P. Burgess (McGill University), J. Matias (IFAE, U. Aut. Barcelona) and M. Pospelov (U. Minnesota)
A Higgs or Not a Higgs? What to Do if You Discover a New Scalar Particle
66 pages, 14 figures, version to appear in International Journal of Mod. Phys. A
Int.J.Mod.Phys. A17 (2002) 1841-1918
10.1142/S0217751X02009813
CERN-TH/99-311, McGill-99/33, TPI-MINN-99/53, UMN-TH-1828-99
hep-ph
null
We show how to systematically analyze what may be inferred should a new scalar particle be discovered in collider experiments. Our approach is systematic in the sense that we perform the analysis in a manner which minimizes apriori theoretical assumptions as to the nature of the scalar particle. For instance, we do n...
[ { "created": "Wed, 22 Dec 1999 20:51:07 GMT", "version": "v1" }, { "created": "Tue, 5 Mar 2002 01:23:46 GMT", "version": "v2" } ]
2009-10-31
[ [ "Burgess", "C. P.", "", "McGill University" ], [ "Matias", "J.", "", "IFAE, U. Aut. Barcelona" ], [ "Pospelov", "M.", "", "U. Minnesota" ] ]
We show how to systematically analyze what may be inferred should a new scalar particle be discovered in collider experiments. Our approach is systematic in the sense that we perform the analysis in a manner which minimizes apriori theoretical assumptions as to the nature of the scalar particle. For instance, we do not...
2112.04858
Gernot Eichmann
Gernot Eichmann, Eduardo Ferreira, Alfred Stadler
Going to the light front with contour deformations
20 pages, 24 figures. Coincides with the version published in Phys. Rev. D
null
10.1103/PhysRevD.105.034009
null
hep-ph hep-lat hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore a new method to calculate the valence light-front wave function of a system of two interacting particles, which is based on contour deformations combined with analytic continuation methods to project the Bethe-Salpeter wave function onto the light front. In this proof-of-concept study, we solve the Bethe-S...
[ { "created": "Thu, 9 Dec 2021 12:10:01 GMT", "version": "v1" }, { "created": "Fri, 18 Feb 2022 18:52:13 GMT", "version": "v2" } ]
2022-02-23
[ [ "Eichmann", "Gernot", "" ], [ "Ferreira", "Eduardo", "" ], [ "Stadler", "Alfred", "" ] ]
We explore a new method to calculate the valence light-front wave function of a system of two interacting particles, which is based on contour deformations combined with analytic continuation methods to project the Bethe-Salpeter wave function onto the light front. In this proof-of-concept study, we solve the Bethe-Sal...
hep-ph/9311353
C. L. Lee
David Brahm and Clarence L.Y. Lee
The Exact Critical Bubble Free Energy and the Effectiveness of Effective Potential Approximations
11 pages plus 3 figures in jyTeX; CALT-68-1881
Phys.Rev. D49 (1994) 4094-4100
10.1103/PhysRevD.49.4094
null
hep-ph
null
To calculate the temperature at which a first-order cosmological phase transition occurs, one must calculate $F_c(T)$, the free energy of a critical bubble configuration. $F_c(T)$ is often approximated by the classical energy plus an integral over the bubble of the effective potential; one must choose a method for ca...
[ { "created": "Wed, 24 Nov 1993 08:13:49 GMT", "version": "v1" } ]
2009-10-22
[ [ "Brahm", "David", "" ], [ "Lee", "Clarence L. Y.", "" ] ]
To calculate the temperature at which a first-order cosmological phase transition occurs, one must calculate $F_c(T)$, the free energy of a critical bubble configuration. $F_c(T)$ is often approximated by the classical energy plus an integral over the bubble of the effective potential; one must choose a method for calc...
hep-ph/0212400
Yoshiaki Koma
Yoshiaki Koma, Miho Koma, Hiroshi Toki
Casimir scaling hypothesis on the nonperturbative force in QCD vs. dual superconducting scenario of confinement
4 pages, 1 figure, Talk given at XVI International Conference on Particles and Nuclei (PaNic02), Osaka, Japan, Sep.30 - Oct.4, 2002
Nucl.Phys. A721 (2003) 903-906
10.1016/S0375-9474(03)01239-9
MPI-THP-2002-83, RCNP-TH-02025
hep-ph
null
We discuss the Casimir scaling hypothesis on the nonperturbative force in terms of the dual superconducting picture of the QCD vacuum by calculating the string tensions of flux tubes associated with static charges in various SU(3) representations in the dual Ginzburg-Landau (DGL) theory.
[ { "created": "Mon, 30 Dec 2002 21:54:27 GMT", "version": "v1" } ]
2009-11-07
[ [ "Koma", "Yoshiaki", "" ], [ "Koma", "Miho", "" ], [ "Toki", "Hiroshi", "" ] ]
We discuss the Casimir scaling hypothesis on the nonperturbative force in terms of the dual superconducting picture of the QCD vacuum by calculating the string tensions of flux tubes associated with static charges in various SU(3) representations in the dual Ginzburg-Landau (DGL) theory.
1301.0329
Bob Holdom
B. Holdom
Dynamical symmetry breaking, CP violation, and a Higgs-like particle
10 pages, matches published version
Physics Letters B721 (2013) 290
10.1016/j.physletb.2013.03.039
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A pseudoscalar associated with dynamical symmetry breaking can mix with a heavier scalar when CP is violated. We study how such a mixed state that is mostly pseudoscalar can resemble the observed 125 GeV particle. The production rate from $gg$ is enhanced by the new heavy quarks and this compensates for the reduced $...
[ { "created": "Wed, 2 Jan 2013 21:02:19 GMT", "version": "v1" }, { "created": "Fri, 1 Mar 2013 20:28:53 GMT", "version": "v2" }, { "created": "Mon, 8 Apr 2013 14:21:55 GMT", "version": "v3" } ]
2013-04-09
[ [ "Holdom", "B.", "" ] ]
A pseudoscalar associated with dynamical symmetry breaking can mix with a heavier scalar when CP is violated. We study how such a mixed state that is mostly pseudoscalar can resemble the observed 125 GeV particle. The production rate from $gg$ is enhanced by the new heavy quarks and this compensates for the reduced $WW...
0911.2630
Cristina Volpe
Cristina Volpe
Low energy beta-beams
Proceedings to to the workshop 'European Strategy for Future Neutrino Physics', 1-3 October 2009, CERN
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The main goal of a beta-beam facility is to determine the possible existence of CP violation in the lepton sector, the value of the third neutrino mixing angle and the mass hierarchy. Here we argue that a much broader physics case can be covered since the beta-beam concept can also be used to establish a low energy b...
[ { "created": "Fri, 13 Nov 2009 15:03:20 GMT", "version": "v1" } ]
2009-11-16
[ [ "Volpe", "Cristina", "" ] ]
The main goal of a beta-beam facility is to determine the possible existence of CP violation in the lepton sector, the value of the third neutrino mixing angle and the mass hierarchy. Here we argue that a much broader physics case can be covered since the beta-beam concept can also be used to establish a low energy bet...
2012.09574
Steffen Schumann
Jeremy Baron, Daniel Reichelt, Steffen Schumann, Niklas Schwanemann, Vincent Theeuwes
Soft-drop grooming for hadronic event shapes
50 pages, 21 figures, extended discussion, version accepted for publication in JHEP
null
10.1007/JHEP07(2021)142
MCNET-20-26
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
Soft-drop grooming of hadron-collision final states has the potential to significantly reduce the impact of non-perturbative corrections, and in particular the underlying-event contribution. This eventually will enable a more direct comparison of accurate perturbative predictions with experimental measurements. In th...
[ { "created": "Thu, 17 Dec 2020 13:29:23 GMT", "version": "v1" }, { "created": "Mon, 19 Jul 2021 21:24:05 GMT", "version": "v2" } ]
2021-08-04
[ [ "Baron", "Jeremy", "" ], [ "Reichelt", "Daniel", "" ], [ "Schumann", "Steffen", "" ], [ "Schwanemann", "Niklas", "" ], [ "Theeuwes", "Vincent", "" ] ]
Soft-drop grooming of hadron-collision final states has the potential to significantly reduce the impact of non-perturbative corrections, and in particular the underlying-event contribution. This eventually will enable a more direct comparison of accurate perturbative predictions with experimental measurements. In this...
hep-ph/0001314
Jie Jie Zhu
Jie-Jie Zhu (USTC), Mu-Lin Yan (USTC)
CP violation in psi(2S) -> J/psi pi pi processes
7 pages, REVTeX, with 3 eps figures
null
null
null
hep-ph hep-ex
null
We propose to search for CP-violating effects in the decay psi(2S)->J/psi+pi+pi. The scheme has the advantage that one does not need to track two or more CP-conjugate processes. Model independent amplitudes are derived for this purpose. The fact that leading CP violating terms are O(k) under low energy expansion and ...
[ { "created": "Sun, 30 Jan 2000 06:57:31 GMT", "version": "v1" }, { "created": "Sat, 1 Apr 2000 01:49:24 GMT", "version": "v2" } ]
2007-05-23
[ [ "Zhu", "Jie-Jie", "", "USTC" ], [ "Yan", "Mu-Lin", "", "USTC" ] ]
We propose to search for CP-violating effects in the decay psi(2S)->J/psi+pi+pi. The scheme has the advantage that one does not need to track two or more CP-conjugate processes. Model independent amplitudes are derived for this purpose. The fact that leading CP violating terms are O(k) under low energy expansion and th...
2111.07682
Mihai Petrovici
A.Lindner, M.Petrovici and A.Pop
Geometrical scaling for light flavor hadrons
PANIC 2021 PoS(PANIC2021)197
null
null
null
hep-ph
http://creativecommons.org/publicdomain/zero/1.0/
As it is well known by now, the pre-partonic phase in hadron collisions is successfully described by the Color Glass Condensate (CGC) approach. Previous studies, based on experimental data obtained on a wide range of energies at the Relativistic Heavy Ion Collider (RHIC) and at the Large Hadron Collider (LHC) for $\p...
[ { "created": "Mon, 15 Nov 2021 11:31:59 GMT", "version": "v1" }, { "created": "Tue, 16 Nov 2021 07:51:07 GMT", "version": "v2" } ]
2021-11-17
[ [ "Lindner", "A.", "" ], [ "Petrovici", "M.", "" ], [ "Pop", "A.", "" ] ]
As it is well known by now, the pre-partonic phase in hadron collisions is successfully described by the Color Glass Condensate (CGC) approach. Previous studies, based on experimental data obtained on a wide range of energies at the Relativistic Heavy Ion Collider (RHIC) and at the Large Hadron Collider (LHC) for $\pi^...
hep-ph/9508271
Apostolos Pilaftsis
Marek Nowakowski (Frascati) and Apostolos Pilaftsis (Rutherford)
W- and Z-Boson Interactions in Supersymmetric Models with Explicit R-Parity Violation
39 pages, LaTeX, 2 figures
Nucl.Phys. B461 (1996) 19-49
10.1016/0550-3213(95)00594-3
RAL-TR/95-035
hep-ph
null
The minimal supersymmetric Standard Model with explicit R-parity nonconservation contains bilinear terms involving the left-handed lepton superfields and the Higgs chiral multiplet with hypercharge Y=+1, which cannot in general be rotated away in the presence of soft-supersymmetry- breaking interactions. These biline...
[ { "created": "Wed, 9 Aug 1995 14:03:33 GMT", "version": "v1" }, { "created": "Thu, 10 Aug 1995 14:09:09 GMT", "version": "v2" } ]
2009-10-28
[ [ "Nowakowski", "Marek", "", "Frascati" ], [ "Pilaftsis", "Apostolos", "", "Rutherford" ] ]
The minimal supersymmetric Standard Model with explicit R-parity nonconservation contains bilinear terms involving the left-handed lepton superfields and the Higgs chiral multiplet with hypercharge Y=+1, which cannot in general be rotated away in the presence of soft-supersymmetry- breaking interactions. These bilinear...