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1309.6229
Odd Magne Ogreid
B. Grzadkowski, O. M. Ogreid, P. Osland
Diagnosing CP properties of the 2HDM
32 pages, 5 figures. Minor changes. Version to appear in JHEP
null
10.1007/JHEP01(2014)105
NORDITA-2013-79
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We have investigated a Two-Higgs-Doublet Model (2HDM), focusing on CP violation. Various scenarios with spontaneous and explicit breaking of CP have been considered. Some features of CP violation related to a choice of the basis for the two Higgs doublets have been discussed and clarified. Regions in the physical par...
[ { "created": "Tue, 24 Sep 2013 15:59:30 GMT", "version": "v1" }, { "created": "Fri, 17 Jan 2014 17:13:03 GMT", "version": "v2" } ]
2015-06-17
[ [ "Grzadkowski", "B.", "" ], [ "Ogreid", "O. M.", "" ], [ "Osland", "P.", "" ] ]
We have investigated a Two-Higgs-Doublet Model (2HDM), focusing on CP violation. Various scenarios with spontaneous and explicit breaking of CP have been considered. Some features of CP violation related to a choice of the basis for the two Higgs doublets have been discussed and clarified. Regions in the physical param...
hep-ph/9307205
Mark Hindmarsh
Mark Hindmarsh and Margaret James
The Origin of the Sphaleron Dipole Moment
13pp Plain TeX, 2 ps figures in 2 files, self-unpacking uuencoded. (Tidied up, discussion of 't Hooft definition of electromagnetic charge, and 2 nice new figures showing charge and current distributions inside the sphaleron.)
Phys.Rev. D49 (1994) 6109-6114
10.1103/PhysRevD.49.6109
null
hep-ph
null
By providing a suitable definition of the electromagnetic field off the Higgs vacuum, we show that within the sphaleron there is a monopole-antimonopole pair with quantized charges, and a loop of electromagnetic current. On integration of the relevant charges and currents over the interior in the limit of small $\The...
[ { "created": "Thu, 1 Jul 1993 14:15:00 GMT", "version": "v1" }, { "created": "Wed, 9 Feb 1994 15:15:36 GMT", "version": "v2" } ]
2009-10-22
[ [ "Hindmarsh", "Mark", "" ], [ "James", "Margaret", "" ] ]
By providing a suitable definition of the electromagnetic field off the Higgs vacuum, we show that within the sphaleron there is a monopole-antimonopole pair with quantized charges, and a loop of electromagnetic current. On integration of the relevant charges and currents over the interior in the limit of small $\Theta...
hep-ph/0405049
Lokhtin
I.P.Lokhtin, A.V.Sherstnev, A.M.Snigirev
Pt-imbalance in dimuon+jet production as a signal of partonic energy loss in heavy ion collisions at LHC
17 pages in LaTeX including 5 eps-figures
Phys.Lett. B599 (2004) 260-268
10.1016/j.physletb.2004.08.036
null
hep-ph
null
We consider a hard jet production tagged by a muon pair in ultrarelativistic heavy ion collisions. The process cross section is calculated by the CompHEP Monte-Carlo generator taking into account full gamma*/Z interference pattern at LHC energies. We have found that reasonable statistics, ~1000 events per 1 month of ...
[ { "created": "Thu, 6 May 2004 12:54:09 GMT", "version": "v1" }, { "created": "Sun, 6 Jun 2004 17:19:25 GMT", "version": "v2" }, { "created": "Mon, 16 Aug 2004 08:11:33 GMT", "version": "v3" } ]
2009-11-10
[ [ "Lokhtin", "I. P.", "" ], [ "Sherstnev", "A. V.", "" ], [ "Snigirev", "A. M.", "" ] ]
We consider a hard jet production tagged by a muon pair in ultrarelativistic heavy ion collisions. The process cross section is calculated by the CompHEP Monte-Carlo generator taking into account full gamma*/Z interference pattern at LHC energies. We have found that reasonable statistics, ~1000 events per 1 month of LH...
hep-ph/0405033
Mattias Blennow
Mattias Blennow, Tommy Ohlsson
Exact series solution to the two flavor neutrino oscillation problem in matter
18 pages, 5 figures, RevTeX4. Final version to be published in Journal of Mathematical Physics
J.Math.Phys. 45 (2004) 4053-4063
10.1063/1.1793330
null
hep-ph
null
In this paper, we present a real non-linear differential equation for the two flavor neutrino oscillation problem in matter with an arbitrary density profile. We also present an exact series solution to this non-linear differential equation. In addition, we investigate numerically the convergence of this solution for...
[ { "created": "Wed, 5 May 2004 08:58:04 GMT", "version": "v1" }, { "created": "Mon, 26 Jul 2004 14:48:44 GMT", "version": "v2" } ]
2015-06-25
[ [ "Blennow", "Mattias", "" ], [ "Ohlsson", "Tommy", "" ] ]
In this paper, we present a real non-linear differential equation for the two flavor neutrino oscillation problem in matter with an arbitrary density profile. We also present an exact series solution to this non-linear differential equation. In addition, we investigate numerically the convergence of this solution for d...
1910.06689
Petr Mandrik
Petr Mandrik
Constraints on anomalous couplings of the Higgs boson from pair production searches
6 pages, presented at The XXIV International Workshop High Energy Physics and Quantum Field Theory
null
10.1051/epjconf/201922204003
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The study of the anomalous non-resonant $HH$ production is presented from the point of view of effective field theory (EFT) parameterization. The searches for $pp \rightarrow HH \rightarrow \gamma \gamma WW$, $pp \rightarrow HH \rightarrow \gamma \gamma bb$ and $pp \rightarrow HH \rightarrow bbbb$ processes by ATLAS ...
[ { "created": "Tue, 15 Oct 2019 12:47:08 GMT", "version": "v1" } ]
2020-01-08
[ [ "Mandrik", "Petr", "" ] ]
The study of the anomalous non-resonant $HH$ production is presented from the point of view of effective field theory (EFT) parameterization. The searches for $pp \rightarrow HH \rightarrow \gamma \gamma WW$, $pp \rightarrow HH \rightarrow \gamma \gamma bb$ and $pp \rightarrow HH \rightarrow bbbb$ processes by ATLAS ex...
1512.04708
Tetsuo Hyodo
Tetsuo Hyodo
What We Know About the Lambda(1405)
8 pages, 4 figures, Talk given at XVI International Conference on Hadron Spectroscopy (Hadron 2015), Sep. 13-18, 2015, Newport News, VA
null
10.1063/1.4949380
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The current status of the Lambda(1405) resonance in the Kbar N scattering is summarized. It is shown that the precise experimental data and the theoretical developments in chiral SU(3) dynamics enable us to quantitatively understand the physics around the Kbar N threshold. We present the recent theoretical prediction...
[ { "created": "Tue, 15 Dec 2015 10:23:24 GMT", "version": "v1" } ]
2016-06-22
[ [ "Hyodo", "Tetsuo", "" ] ]
The current status of the Lambda(1405) resonance in the Kbar N scattering is summarized. It is shown that the precise experimental data and the theoretical developments in chiral SU(3) dynamics enable us to quantitatively understand the physics around the Kbar N threshold. We present the recent theoretical predictions ...
hep-ph/9605398
Stephen Martin
S. Ambrosanio, G. L. Kane, Graham D. Kribs, Stephen P. Martin, S. Mrenna
Search for supersymmetry with a light gravitino at the Fermilab Tevatron and CERN LEP colliders
36 pages, LaTeX, uses epsf.sty, 17 figures, minor typos corrected, version to appear in Phys. Rev. D
Phys.Rev.D54:5395-5411,1996
10.1103/PhysRevD.54.5395
null
hep-ph hep-ex
null
We analyze the prospects for discovering supersymmetry at the Fermilab Tevatron and CERN LEP colliders in the scenario that the lightest supersymmetric particle is a gravitino of mass < 1 keV. We consider in particular the case that the lightest neutralino has a nearly 100% branching fraction into gravitino + photon ...
[ { "created": "Sun, 26 May 1996 01:10:57 GMT", "version": "v1" }, { "created": "Thu, 13 Jun 1996 23:36:22 GMT", "version": "v2" }, { "created": "Wed, 2 Oct 1996 22:11:35 GMT", "version": "v3" } ]
2009-07-09
[ [ "Ambrosanio", "S.", "" ], [ "Kane", "G. L.", "" ], [ "Kribs", "Graham D.", "" ], [ "Martin", "Stephen P.", "" ], [ "Mrenna", "S.", "" ] ]
We analyze the prospects for discovering supersymmetry at the Fermilab Tevatron and CERN LEP colliders in the scenario that the lightest supersymmetric particle is a gravitino of mass < 1 keV. We consider in particular the case that the lightest neutralino has a nearly 100% branching fraction into gravitino + photon wi...
1804.08284
Marthijn Sunder
M.P.A. Sunder
Simplified Gaugino-Higgsino Models in the MSSM
4 pages, 3 figures, conference proceedings of Moriond EW 2018
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a tool to produce benchmarks with realistic mass spectra and realistic mixing in the gaugino-higgsino sector of the MSSM. We suggest as a next-to-minimal approach the use of benchmarks, whose mass spectra and mixing matrix elements are the result of a proper matrix diagonalisation at treelevel. We scan ove...
[ { "created": "Mon, 23 Apr 2018 08:43:17 GMT", "version": "v1" } ]
2018-04-24
[ [ "Sunder", "M. P. A.", "" ] ]
We present a tool to produce benchmarks with realistic mass spectra and realistic mixing in the gaugino-higgsino sector of the MSSM. We suggest as a next-to-minimal approach the use of benchmarks, whose mass spectra and mixing matrix elements are the result of a proper matrix diagonalisation at treelevel. We scan over ...
hep-ph/9508312
null
Markus Finkemeier (Harvard) and Erwin Mirkes (Wisconsin)
Decay Rates, Structure Functions and New Physics Effects in Hadronic Tau Decays
16 pages, Latex, RevTex, no figures. Invited talk presented by E. Mirkes at the Workshop on the Tau/Charm Factory, Argonne National Laboratory, June 21-23, 1995
AIP Conf.Proc.349:119-136,1996
10.1063/1.49260
MADPH-95-906, HUTP-95/A030
hep-ph
null
Hadronic decays rates of the $\tau$ lepton into multi meson final states are presented. The structure of the hadronic matrix elements for various decay modes is discussed. The formalism of structure functions allows for a detailed test of these matrix elements. Various correlations are discussed which are sensitive t...
[ { "created": "Wed, 16 Aug 1995 15:44:29 GMT", "version": "v1" } ]
2015-06-25
[ [ "Finkemeier", "Markus", "", "Harvard" ], [ "Mirkes", "Erwin", "", "Wisconsin" ] ]
Hadronic decays rates of the $\tau$ lepton into multi meson final states are presented. The structure of the hadronic matrix elements for various decay modes is discussed. The formalism of structure functions allows for a detailed test of these matrix elements. Various correlations are discussed which are sensitive to ...
hep-ph/0407187
Matteo Cacciari
Matteo Cacciari
Rise and Fall of the Bottom Quark Production Excess
Talk given at the La Thuile (February 2004), Moriond QCD (March 2004), IFAE (April 2004) and Loops and Legs (April 2004) conferences. To be published, in slightly modified forms, in their respective Proceedings
null
null
LPTHE-P04-03
hep-ph
null
We review the history of comparisons between bottom production measurements and QCD predictions. We challenge the existence of a `significant discrepancy', and argue that standard approaches to QCD calculations do a good job in describing the experimental findings.
[ { "created": "Fri, 16 Jul 2004 17:19:25 GMT", "version": "v1" } ]
2007-05-23
[ [ "Cacciari", "Matteo", "" ] ]
We review the history of comparisons between bottom production measurements and QCD predictions. We challenge the existence of a `significant discrepancy', and argue that standard approaches to QCD calculations do a good job in describing the experimental findings.
hep-ph/0104099
Johannes Bluemlein
Johannes Bl\"umlein
On the Anomalous Dimension of the Transversity Distribution $h_1(x,Q^2)$
9 pages LATEX, 2 style files, more references added, to appear in Eur. Phys J. C
Eur.Phys.J.C20:683-687,2001
10.1007/s100520100703
DESY 01-032
hep-ph hep-ex
null
We calculate the leading order anomalous dimension of the transversity structure function directly using three different methods, the local light-cone expansion in the forward case, the non-forward case, and the short-distance expansion of the forward Compton amplitude. Our results agree with the original calculation...
[ { "created": "Tue, 10 Apr 2001 20:01:10 GMT", "version": "v1" }, { "created": "Tue, 15 May 2001 13:50:03 GMT", "version": "v2" } ]
2009-01-07
[ [ "Blümlein", "Johannes", "" ] ]
We calculate the leading order anomalous dimension of the transversity structure function directly using three different methods, the local light-cone expansion in the forward case, the non-forward case, and the short-distance expansion of the forward Compton amplitude. Our results agree with the original calculation b...
0808.1372
Abram Krislock
Bhaskar Dutta, Alfredo Gurrola, Teruki Kamon, Abram Krislock, A.B. Lahanas, N.E. Mavromatos, D.V. Nanopoulos
Supersymmetry Signals of Supercritical String Cosmology at the Large Hadron Collider
26 pages, 21 figures, minor changes and references added
Phys.Rev.D79:055002,2009
10.1103/PhysRevD.79.055002
MIFP-08-20
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the minimal supergravity (mSUGRA) signals at the LHC in the context of supercritical string cosmology (SSC). In this theory, the presence of a time dependent dilaton provides us with a smoothly evolving dark energy and modifies the dark matter allowed region of the mSUGRA model with standard cosmology....
[ { "created": "Sat, 9 Aug 2008 20:40:31 GMT", "version": "v1" }, { "created": "Tue, 5 May 2009 20:05:36 GMT", "version": "v2" } ]
2009-05-12
[ [ "Dutta", "Bhaskar", "" ], [ "Gurrola", "Alfredo", "" ], [ "Kamon", "Teruki", "" ], [ "Krislock", "Abram", "" ], [ "Lahanas", "A. B.", "" ], [ "Mavromatos", "N. E.", "" ], [ "Nanopoulos", "D. V.", "" ] ]
We investigate the minimal supergravity (mSUGRA) signals at the LHC in the context of supercritical string cosmology (SSC). In this theory, the presence of a time dependent dilaton provides us with a smoothly evolving dark energy and modifies the dark matter allowed region of the mSUGRA model with standard cosmology. S...
hep-ph/0601175
Matteo Beccaria
M. Beccaria, G. Macorini, F.M. Renard, C. Verzegnassi
Associated tW production at LHC: a complete calculation of electroweak supersymmetric effects at one loop
32 pages, 9 eps figures
Phys.Rev.D73:093001,2006
10.1103/PhysRevD.73.093001
PTA/06-2
hep-ph
null
We compute, in the MSSM framework, the total electroweak contributions at one loop for the process pp -> tW+X, initiated by the parton process bg -> tW. The supersymmetric effect is analyzed for various choices of the SUSY benchmark points. Choosing realistic unpolarized and polarized experimental quantities, we show...
[ { "created": "Fri, 20 Jan 2006 15:18:36 GMT", "version": "v1" } ]
2008-11-26
[ [ "Beccaria", "M.", "" ], [ "Macorini", "G.", "" ], [ "Renard", "F. M.", "" ], [ "Verzegnassi", "C.", "" ] ]
We compute, in the MSSM framework, the total electroweak contributions at one loop for the process pp -> tW+X, initiated by the parton process bg -> tW. The supersymmetric effect is analyzed for various choices of the SUSY benchmark points. Choosing realistic unpolarized and polarized experimental quantities, we show t...
hep-ph/9909314
Pankaj Jain
John P. Ralston, Pankaj Jain, Bijoy Kundu and Jim Samuelsson
Perturbative Color Transparency in Electron Beam Experiments via Impact-Parameter Factorization
8 pages, 2 figures to appear in Proceedings of the Exclusive and Semi-Exclusive Processes at High Momentum Transfer Workshop, CEBAF, May 20-22, 1999
null
null
IITK-HEP-99-54
hep-ph nucl-ex nucl-th
null
Color transparency is a prediction of perturbative QCD. Yet detailed calculations have been lacking, and aspects of the required factorization have been controversial. We report on the first complete calculations entirely within a perturbative QCD framework. We also comment on the underlying factorization method and ...
[ { "created": "Fri, 10 Sep 1999 03:19:05 GMT", "version": "v1" } ]
2007-05-23
[ [ "Ralston", "John P.", "" ], [ "Jain", "Pankaj", "" ], [ "Kundu", "Bijoy", "" ], [ "Samuelsson", "Jim", "" ] ]
Color transparency is a prediction of perturbative QCD. Yet detailed calculations have been lacking, and aspects of the required factorization have been controversial. We report on the first complete calculations entirely within a perturbative QCD framework. We also comment on the underlying factorization method and as...
2209.08115
Juan Rojo
Richard D. Ball, Alessandro Candido, Stefano Forte, Felix Hekhorn, Emanuele R. Nocera, Juan Rojo, Christopher Schwan
Parton Distributions and New Physics Searches: the Drell-Yan Forward-Backward Asymmetry as a Case Study
27 pages, 20 figures. v2: version accepted for publication in EPJC
null
10.1140/epjc/s10052-022-11133-y
Edinburgh 2022/14, Nikhef-2022-013, TIF-UNIMI-2022-13
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
We discuss the sensitivity of theoretical predictions of observables used in searches for new physics to parton distributions (PDFs) at large momentum fraction $x$. Specifically, we consider the neutral-current Drell-Yan production of gauge bosons with invariant masses in the TeV range, for which the forward-backward...
[ { "created": "Fri, 16 Sep 2022 18:01:49 GMT", "version": "v1" }, { "created": "Wed, 21 Dec 2022 14:23:54 GMT", "version": "v2" } ]
2023-01-18
[ [ "Ball", "Richard D.", "" ], [ "Candido", "Alessandro", "" ], [ "Forte", "Stefano", "" ], [ "Hekhorn", "Felix", "" ], [ "Nocera", "Emanuele R.", "" ], [ "Rojo", "Juan", "" ], [ "Schwan", "Christopher", "" ...
We discuss the sensitivity of theoretical predictions of observables used in searches for new physics to parton distributions (PDFs) at large momentum fraction $x$. Specifically, we consider the neutral-current Drell-Yan production of gauge bosons with invariant masses in the TeV range, for which the forward-backward a...
2109.07490
Luca Merlo Dr.
J. Alonso-Gonzalez, A. de Giorgi, L. Merlo, S. Pokorski
Searching for BSM Physics in Yukawa Couplings and Flavour Symmetries
34 pages, 13 tables, 4 figures. Version accepted for publication on JHEP: references added, typos corrected, results unchanged
null
10.1007/JHEP05(2022)041
FTUAM-21-3, IFT-UAM/CSIC-21-94
hep-ph
http://creativecommons.org/publicdomain/zero/1.0/
In the framework of the Standard Model Effective Field Theory, we compare the lower bounds on the scale of new physics possibly contributing to the $f\bar{f}h$ effective couplings, obtained from the measurements of different observables, under the assumption that the Wilson coefficients of the relevant dim 6 operator...
[ { "created": "Wed, 15 Sep 2021 18:00:07 GMT", "version": "v1" }, { "created": "Tue, 19 Apr 2022 10:27:42 GMT", "version": "v2" } ]
2022-05-25
[ [ "Alonso-Gonzalez", "J.", "" ], [ "de Giorgi", "A.", "" ], [ "Merlo", "L.", "" ], [ "Pokorski", "S.", "" ] ]
In the framework of the Standard Model Effective Field Theory, we compare the lower bounds on the scale of new physics possibly contributing to the $f\bar{f}h$ effective couplings, obtained from the measurements of different observables, under the assumption that the Wilson coefficients of the relevant dim 6 operators ...
2203.05982
Ernesto Alfonso-Pita
E. Alfonso-Pita, L. J. Flores, Eduardo Peinado and E. V\'azquez-J\'auregui
New Physics searches in a low threshold scintillating argon bubble chamber measuring coherent elastic neutrino-nucleus scattering in reactors
null
null
10.1103/PhysRevD.105.113005
null
hep-ph hep-ex nucl-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The sensitivity to New Physics of a low threshold scintillating argon bubble chamber measuring coherent elastic neutrino-nucleus scattering in reactors is reported. Namely, light scalar mediators, sterile neutrino oscillations, unitarity violation, and non-standard interactions are studied. The results indicate that ...
[ { "created": "Fri, 11 Mar 2022 15:09:15 GMT", "version": "v1" } ]
2022-07-13
[ [ "Alfonso-Pita", "E.", "" ], [ "Flores", "L. J.", "" ], [ "Peinado", "Eduardo", "" ], [ "Vázquez-Jáuregui", "E.", "" ] ]
The sensitivity to New Physics of a low threshold scintillating argon bubble chamber measuring coherent elastic neutrino-nucleus scattering in reactors is reported. Namely, light scalar mediators, sterile neutrino oscillations, unitarity violation, and non-standard interactions are studied. The results indicate that th...
2101.02685
Debojit Sarkar
Sumit Kumar Saha, Debojit Sarkar, Subhasis Chattopadhyay, Ashik Ikbal Sheikh, Sidharth Kumar Prasad
Study of medium modified jet shape observables in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV using EPOS and JEWEL event generators
Published in Nuclear Physics A
null
10.1016/j.nuclphysa.2020.122064
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The jet-medium interaction in high energy heavy ion collisions is an important phenomena to characterize the hot and dense medium produced in such collisions. The study of medium-induced modifications to the substructure of inclusive charged jets indicates a redistribution of energy inside the jet cone and provides i...
[ { "created": "Thu, 7 Jan 2021 18:45:58 GMT", "version": "v1" } ]
2021-02-03
[ [ "Saha", "Sumit Kumar", "" ], [ "Sarkar", "Debojit", "" ], [ "Chattopadhyay", "Subhasis", "" ], [ "Sheikh", "Ashik Ikbal", "" ], [ "Prasad", "Sidharth Kumar", "" ] ]
The jet-medium interaction in high energy heavy ion collisions is an important phenomena to characterize the hot and dense medium produced in such collisions. The study of medium-induced modifications to the substructure of inclusive charged jets indicates a redistribution of energy inside the jet cone and provides ins...
2012.11437
Bennie F. L. Ward
B.F.L. Ward (1), S. Jadach (2), W. Placzek (3), M. Skrzypek (2), S.A. Yost (4) ((1) Baylor University, Waco, TX, USA, (2) Institute of Nuclear Physics Polish Academy of Sciences, Krakow, PL, (3) Institute of Applied Computer Science, Jagiellonian University, Krakow, PL, (4) The Citadel, Charleston, SC, USA)
Overview of the Path to 0.01$\%$ Theoretical Luminosity Precision for the FCCee and Its Possible Synergistic Effects for Other FCC Precision Theory Requirements
6 pages, 3 tables, presented by B.F.L. Ward at ICHEP2020, Prague, CZ, July 29, 2020. arXiv admin note: substantial text overlap with arXiv:1902.05912
PoS(ICHEP2020)704
null
BU-HEPP-20-07
hep-ph
http://creativecommons.org/licenses/by/4.0/
To exploit properly the precision physics program at the FCC-ee, the theoretical precision tag on the respective luminosity will need to be improved from the 0.054$\%$ (0.061$\%$) results at LEP to 0.01$\%$, where the former (latter) LEP result has (does not have) the pairs correction. We present an overview of the r...
[ { "created": "Mon, 21 Dec 2020 15:41:03 GMT", "version": "v1" }, { "created": "Tue, 22 Dec 2020 13:21:10 GMT", "version": "v2" } ]
2021-01-27
[ [ "Ward", "B. F. L.", "" ], [ "Jadach", "S.", "" ], [ "Placzek", "W.", "" ], [ "Skrzypek", "M.", "" ], [ "Yost", "S. A.", "" ] ]
To exploit properly the precision physics program at the FCC-ee, the theoretical precision tag on the respective luminosity will need to be improved from the 0.054$\%$ (0.061$\%$) results at LEP to 0.01$\%$, where the former (latter) LEP result has (does not have) the pairs correction. We present an overview of the roa...
hep-ph/9508247
Morimitsu Tanimoto
M. Tanimoto
Renormalization Effect on Large Neutrino Flavor Mixing in the Minimal Supersymmetric Standard Model
15 pages, LATeX file, 4 figures available upon request
Phys.Lett. B360 (1995) 41-46
10.1016/0370-2693(95)01107-2
EHU-1995-08
hep-ph
null
In the minimal supersymmetric standard model, we have studied the evolution of the neutrino flavor mixing by using the renormalization group equation(RGE) with the Georgi-Jarlskog texture for the Yukawa coupling matrices.For the large Yukawa coupling of the charged lepton, i.e.,$\tan\b \gg 1$, the neutrino flavor mix...
[ { "created": "Sun, 6 Aug 1995 09:49:57 GMT", "version": "v1" } ]
2009-10-28
[ [ "Tanimoto", "M.", "" ] ]
In the minimal supersymmetric standard model, we have studied the evolution of the neutrino flavor mixing by using the renormalization group equation(RGE) with the Georgi-Jarlskog texture for the Yukawa coupling matrices.For the large Yukawa coupling of the charged lepton, i.e.,$\tan\b \gg 1$, the neutrino flavor mixin...
1409.5123
Duccio Pappadopulo
Francesco D'Eramo, Lawrence J. Hall and Duccio Pappadopulo
Multiverse Dark Matter: SUSY or Axions
32 pages, 14 figures, version published on JHEP
JHEP 1411 (2014) 108
10.1007/JHEP11(2014)108
UCB-PTH-14/35
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The observed values of the cosmological constant {\it and} the abundance of Dark Matter (DM) can be successfully understood, using certain measures, by imposing the anthropic requirement that density perturbations go non-linear and virialize to form halos. This requires a probability distribution favoring low amounts...
[ { "created": "Wed, 17 Sep 2014 20:00:03 GMT", "version": "v1" }, { "created": "Wed, 11 Mar 2015 22:50:40 GMT", "version": "v2" } ]
2015-03-13
[ [ "D'Eramo", "Francesco", "" ], [ "Hall", "Lawrence J.", "" ], [ "Pappadopulo", "Duccio", "" ] ]
The observed values of the cosmological constant {\it and} the abundance of Dark Matter (DM) can be successfully understood, using certain measures, by imposing the anthropic requirement that density perturbations go non-linear and virialize to form halos. This requires a probability distribution favoring low amounts o...
hep-ph/0006055
Jose Illana
Jose I. Illana and Tord Riemann
Predictions for Lepton Flavour Violation in Z decays
6 pages, 2 figures, uses npb.sty. Talk given by J.I.I. at Loops and Legs 2000, Bastei, Germany, April 9-14. Typos corrected, Figure 2 replaced. Conclusions unchanged
Nucl.Phys.Proc.Suppl. 89 (2000) 64-69
10.1016/S0920-5632(00)00824-0
DESY 00-072
hep-ph
null
Recent experimental results suggest that the neutrinos of the Standard Model are massive, though light. Therefore they may mix with each other giving rise to lepton flavour or even lepton number violating processes, depending on whether they are Dirac or Majorana particles. Furthermore, the lightness of the observed ...
[ { "created": "Tue, 6 Jun 2000 09:03:50 GMT", "version": "v1" }, { "created": "Thu, 28 Sep 2000 14:41:04 GMT", "version": "v2" } ]
2009-10-31
[ [ "Illana", "Jose I.", "" ], [ "Riemann", "Tord", "" ] ]
Recent experimental results suggest that the neutrinos of the Standard Model are massive, though light. Therefore they may mix with each other giving rise to lepton flavour or even lepton number violating processes, depending on whether they are Dirac or Majorana particles. Furthermore, the lightness of the observed ne...
2102.07991
Alexander Studenikin
Artem Popov, Alexander Studenikin
Manifestations of non-zero Majorana CP violating phases in oscillations of supernova neutrinos
14 pages in LaTex, 8 figures
Phys. Rev. D 103, 115027 (2021)
10.1103/PhysRevD.103.115027
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We investigate effects of non-zero Dirac and Majorana CP violating phases on neutrino-antineutrino oscillations in a magnetic field of astrophysical environments. It is shown that in the presence of strong magnetic fields and dense matter, non-zero CP phases can induce new resonances in the oscillations channels $\nu...
[ { "created": "Tue, 16 Feb 2021 07:37:55 GMT", "version": "v1" } ]
2021-06-30
[ [ "Popov", "Artem", "" ], [ "Studenikin", "Alexander", "" ] ]
We investigate effects of non-zero Dirac and Majorana CP violating phases on neutrino-antineutrino oscillations in a magnetic field of astrophysical environments. It is shown that in the presence of strong magnetic fields and dense matter, non-zero CP phases can induce new resonances in the oscillations channels $\nu_e...
hep-ph/0405243
Hsin-Chia Cheng
Hsin-Chia Cheng and Ian Low (Harvard University)
Little Hierarchy, Little Higgses, and a Little Symmetry
20 pages, 2 figures, RevTeX; v2: Yukawa sector in the SU(5)/SO(5) model slightly modified. Also added comments on the Dirac mass term for the fermionic doublet partner; v3: clarifying comments on the modified Yukawa sector. version to appear on JHEP
JHEP 0408:061,2004
10.1088/1126-6708/2004/08/061
null
hep-ph
null
Little Higgs theories are an attempt to address the little hierarchy problem, i.e., the tension between the naturalness of the electroweak scale and the precision measurements showing no evidence for new physics up to 5-10 TeV. In little Higgs theories, the Higgs mass-squareds are protected to the one-loop order from...
[ { "created": "Mon, 24 May 2004 21:44:32 GMT", "version": "v1" }, { "created": "Tue, 20 Jul 2004 14:53:09 GMT", "version": "v2" }, { "created": "Mon, 20 Sep 2004 15:50:41 GMT", "version": "v3" } ]
2011-07-19
[ [ "Cheng", "Hsin-Chia", "", "Harvard University" ], [ "Low", "Ian", "", "Harvard University" ] ]
Little Higgs theories are an attempt to address the little hierarchy problem, i.e., the tension between the naturalness of the electroweak scale and the precision measurements showing no evidence for new physics up to 5-10 TeV. In little Higgs theories, the Higgs mass-squareds are protected to the one-loop order from t...
1812.07575
William Shepherd
Stefan Alte, Matthias K\"onig, and William Shepherd
Consistent Searches for SMEFT Effects in Non-Resonant Dilepton Events
11 pages, 4 figures v2: updated to match version accepted for publication
null
10.1007/JHEP07(2019)144
MITP/18-124, ZU-TH 47/18
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Employing the framework of the Standard Model Effective Field Theory, we perform a detailed reinterpretation of measurements of the Weinberg angle in dilepton production as a search for new-physics effects. We truncate our signal prediction at order $1/\Lambda^2$, where $\Lambda$ denotes the new-physics mass scale, a...
[ { "created": "Tue, 18 Dec 2018 19:00:00 GMT", "version": "v1" }, { "created": "Thu, 18 Jul 2019 13:36:27 GMT", "version": "v2" } ]
2019-09-04
[ [ "Alte", "Stefan", "" ], [ "König", "Matthias", "" ], [ "Shepherd", "William", "" ] ]
Employing the framework of the Standard Model Effective Field Theory, we perform a detailed reinterpretation of measurements of the Weinberg angle in dilepton production as a search for new-physics effects. We truncate our signal prediction at order $1/\Lambda^2$, where $\Lambda$ denotes the new-physics mass scale, and...
hep-ph/0608115
Tomo Takahashi
Tomo Takahashi and Masahide Yamaguchi
Effects of Cosmic Strings on Free Streaming
14 pages, 9 figures
Phys.Rev. D74 (2006) 063512
10.1103/PhysRevD.74.063512
null
hep-ph astro-ph
null
We study the effect of free streaming in a universe with cosmic strings with time-varying tension as well as with constant tension. Although current cosmological observations suggest that fluctuation seeded by cosmic strings cannot be the primary source of cosmic density fluctuation, some contributions from them are ...
[ { "created": "Thu, 10 Aug 2006 13:32:13 GMT", "version": "v1" } ]
2009-11-11
[ [ "Takahashi", "Tomo", "" ], [ "Yamaguchi", "Masahide", "" ] ]
We study the effect of free streaming in a universe with cosmic strings with time-varying tension as well as with constant tension. Although current cosmological observations suggest that fluctuation seeded by cosmic strings cannot be the primary source of cosmic density fluctuation, some contributions from them are st...
2402.10594
Dian-Yong Chen
Zi-Li Yue, Quan-Yun Guo and Dian-Yong Chen
Strong decays of the $\Lambda_{c}(2910)$ and $\Lambda_{c}(2940)$ in the $ND^{*}$ molecular frame
12 pages, 13 figures, 3 tables, accepted for publication in PRD
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Stimulated by the observation of a new structure, named $\Lambda_{c}(2910)$, in the $\Sigma_{c}(2455)^{0,++}\pi^{+,-}$ decay channel from B meson decay process by the Belle Collaboration, and the similarity of the $\Lambda_{c}(2910)/\Lambda_{c}(2940)$ and $P_{c}$ states, we investigate the decay behavior of the $\Lam...
[ { "created": "Fri, 16 Feb 2024 11:28:46 GMT", "version": "v1" }, { "created": "Sun, 26 May 2024 16:24:48 GMT", "version": "v2" } ]
2024-05-28
[ [ "Yue", "Zi-Li", "" ], [ "Guo", "Quan-Yun", "" ], [ "Chen", "Dian-Yong", "" ] ]
Stimulated by the observation of a new structure, named $\Lambda_{c}(2910)$, in the $\Sigma_{c}(2455)^{0,++}\pi^{+,-}$ decay channel from B meson decay process by the Belle Collaboration, and the similarity of the $\Lambda_{c}(2910)/\Lambda_{c}(2940)$ and $P_{c}$ states, we investigate the decay behavior of the $\Lambd...
1704.01953
Stefano Di Vita
Stefano Di Vita, Christophe Grojean, Giuliano Panico, Marc Riembau, Thibaud Vantalon
A global view on the Higgs self-coupling
41 pages, 6 figures; v2: comments and references added, minor typos corrected, matches published version
JHEP 1709 (2017) 069
10.1007/JHEP09(2017)069
DESY 17-044
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
The Higgs self-coupling is notoriously intangible at the LHC. It was recently proposed to probe the trilinear Higgs interaction through its radiative corrections to single-Higgs processes. This approach however requires to disentangle these effects from those associated to deviations of other Higgs-couplings to fermi...
[ { "created": "Thu, 6 Apr 2017 17:41:41 GMT", "version": "v1" }, { "created": "Thu, 21 Sep 2017 09:02:45 GMT", "version": "v2" } ]
2017-09-22
[ [ "Di Vita", "Stefano", "" ], [ "Grojean", "Christophe", "" ], [ "Panico", "Giuliano", "" ], [ "Riembau", "Marc", "" ], [ "Vantalon", "Thibaud", "" ] ]
The Higgs self-coupling is notoriously intangible at the LHC. It was recently proposed to probe the trilinear Higgs interaction through its radiative corrections to single-Higgs processes. This approach however requires to disentangle these effects from those associated to deviations of other Higgs-couplings to fermion...
1110.1366
Bhupal Dev
Haipeng An, P. S. Bhupal Dev, Yi Cai, R. N. Mohapatra
Sneutrino Dark Matter in Gauged Inverse Seesaw Models for Neutrinos
5 pages, 4 figures; final version (to appear in Phys. Rev. Lett.)
null
10.1103/PhysRevLett.108.081806
PI-PARTPHYS-239; UM-DOE/ER/40762-506; UMD-PP-011-016
hep-ph astro-ph.CO hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Extending the Minimal Supersymmetric Standard Model (MSSM) to explain small neutrino masses via the inverse seesaw mechanism can lead to a new light supersymmetric scalar partner which can play the role of inelastic dark matter (iDM). It is a linear combination of the superpartners of the neutral fermions in the theo...
[ { "created": "Thu, 6 Oct 2011 19:38:00 GMT", "version": "v1" }, { "created": "Mon, 31 Oct 2011 18:38:22 GMT", "version": "v2" }, { "created": "Fri, 6 Jan 2012 14:04:08 GMT", "version": "v3" } ]
2013-05-30
[ [ "An", "Haipeng", "" ], [ "Dev", "P. S. Bhupal", "" ], [ "Cai", "Yi", "" ], [ "Mohapatra", "R. N.", "" ] ]
Extending the Minimal Supersymmetric Standard Model (MSSM) to explain small neutrino masses via the inverse seesaw mechanism can lead to a new light supersymmetric scalar partner which can play the role of inelastic dark matter (iDM). It is a linear combination of the superpartners of the neutral fermions in the theory...
hep-ph/0506058
Michael Trusov
Yu.A.Simonov and M.A.Trusov
Axial and tensor charge of the nucleon in the Dirac orbital model
5 pages, no figures, LaTeX2e
null
null
null
hep-ph
null
Using the expansion of the baryon wave function in a series of products of single quark bispinors (Dirac orbitals), the nonsinglet axial and tensor charge of the nucleon are calculated. The leading term yields ${G_A}/{G_V} = 1.27$ and in good agreement with experiment. Calculation is essentially parameter-free and de...
[ { "created": "Mon, 6 Jun 2005 20:25:03 GMT", "version": "v1" } ]
2007-05-23
[ [ "Simonov", "Yu. A.", "" ], [ "Trusov", "M. A.", "" ] ]
Using the expansion of the baryon wave function in a series of products of single quark bispinors (Dirac orbitals), the nonsinglet axial and tensor charge of the nucleon are calculated. The leading term yields ${G_A}/{G_V} = 1.27$ and in good agreement with experiment. Calculation is essentially parameter-free and depe...
1407.3030
Arindam Chatterjee
Arindam Chatterjee, Narendra Sahu
Resurrecting Sneutrino ($\tilde{\nu}_L$) Dark Matter in light of Neutrino Mass and LUX
null
Phys. Rev. D 90, 095021 (2014)
10.1103/PhysRevD.90.095021
HRI-RECAPP-2014-017
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the minimal supersymmetric standard model (MSSM) the lightest superpartner of the left-handed neutrinos is ruled out of being a candidate of dark matter because of its large elastic cross-section with the nucleus mediated via Z-boson. We resurrect it by extending the MSSM with two triplets with opposite hypercharg...
[ { "created": "Fri, 11 Jul 2014 05:13:38 GMT", "version": "v1" } ]
2014-11-26
[ [ "Chatterjee", "Arindam", "" ], [ "Sahu", "Narendra", "" ] ]
In the minimal supersymmetric standard model (MSSM) the lightest superpartner of the left-handed neutrinos is ruled out of being a candidate of dark matter because of its large elastic cross-section with the nucleus mediated via Z-boson. We resurrect it by extending the MSSM with two triplets with opposite hypercharge....
2111.00301
Sarka Todorova PhD
S.Todorova-Nova
Quantized fragmentation of three-dimensional QCD string
5 pages, 5 figures. Proceedings of ISMD2021
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recent developments of the model of quantized helical QCD string are presented, notably the baryon production. An overview of the experimental evidence is discussed as well as possible applications.
[ { "created": "Sat, 30 Oct 2021 18:09:42 GMT", "version": "v1" } ]
2021-11-02
[ [ "Todorova-Nova", "S.", "" ] ]
Recent developments of the model of quantized helical QCD string are presented, notably the baryon production. An overview of the experimental evidence is discussed as well as possible applications.
1502.02311
Bumseok Kyae
Bumseok Kyae
Shifted focus point of the Higgs mass parameter from the minimal mixed mediation of SUSY breaking
5 pages, 1 eps figure
Phys. Rev. D 92, 015027 (2015)
10.1103/PhysRevD.92.015027
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We employ both the minimal gravity- and the minimal gauge mediations of supersymmetry breaking at the grand unified theory (GUT) scale in a single supergravity framework, assuming the gaugino masses are generated dominantly by the minimal gauge mediation effects. In such a "minimal mixed mediation model," a "focus po...
[ { "created": "Sun, 8 Feb 2015 22:39:35 GMT", "version": "v1" }, { "created": "Mon, 23 Feb 2015 04:00:20 GMT", "version": "v2" }, { "created": "Thu, 28 May 2015 05:07:56 GMT", "version": "v3" } ]
2015-08-05
[ [ "Kyae", "Bumseok", "" ] ]
We employ both the minimal gravity- and the minimal gauge mediations of supersymmetry breaking at the grand unified theory (GUT) scale in a single supergravity framework, assuming the gaugino masses are generated dominantly by the minimal gauge mediation effects. In such a "minimal mixed mediation model," a "focus poin...
hep-ph/0207209
Stefano Forte
Stefano Forte
Hadron physics at a neutrino factory
7 pages, 5 figs, Latex with espcrc1 style
Nucl.Phys. A711 (2002) 323-329
10.1016/S0375-9474(02)01236-8
RM3-TH/02-10
hep-ph
null
We review the way intense neutrino beams at the front-end of a muon storage ring can be used to probe the structure of hadrons. Specifically, we discuss how the polarized and unpolarized flavor structure of the nucleon can be disentangled in inclusive deep-inelastic scattering, and how less inclusive measurements can...
[ { "created": "Wed, 17 Jul 2002 15:45:47 GMT", "version": "v1" } ]
2009-11-07
[ [ "Forte", "Stefano", "" ] ]
We review the way intense neutrino beams at the front-end of a muon storage ring can be used to probe the structure of hadrons. Specifically, we discuss how the polarized and unpolarized flavor structure of the nucleon can be disentangled in inclusive deep-inelastic scattering, and how less inclusive measurements can s...
hep-ph/9903503
Thomas Schaefer
Thomas Schaefer and Frank Wilczek (IAS, Princeton)
Quark Description of Hadronic Phases
21 pages, 2 figures
Phys.Rev. D60 (1999) 074014
10.1103/PhysRevD.60.074014
IASSNS-HEP 99/32
hep-ph nucl-th
null
We extend our proposal that major universality classes of hadronic matter can be understood, and in favorable cases calculated, directly in the microscopic quark variables, to allow for splitting between strange and light quark masses. A surprisingly simple but apparently viable picture emerges, featuring essentially...
[ { "created": "Fri, 26 Mar 1999 20:19:41 GMT", "version": "v1" } ]
2009-10-31
[ [ "Schaefer", "Thomas", "", "IAS, Princeton" ], [ "Wilczek", "Frank", "", "IAS, Princeton" ] ]
We extend our proposal that major universality classes of hadronic matter can be understood, and in favorable cases calculated, directly in the microscopic quark variables, to allow for splitting between strange and light quark masses. A surprisingly simple but apparently viable picture emerges, featuring essentially t...
0901.3498
Bj\"orn Schenke
Bjoern Schenke, Charles Gale and Guang-You Qin
The evolving distribution of hard partons traversing a hot strongly interacting plasma
7 pages, 9 figures, references updated and added
Phys.Rev.C79:054908,2009
10.1103/PhysRevC.79.054908
null
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present results for the evolution of the momentum distribution of a hard parton traversing a brick of quark-gluon plasma, considering both bremsstrahlung and collisional energy loss. The complete leading order transition rates are included. We find a significant modification of the evolving momentum distribution c...
[ { "created": "Thu, 22 Jan 2009 15:27:50 GMT", "version": "v1" }, { "created": "Wed, 13 May 2009 14:26:24 GMT", "version": "v2" } ]
2009-08-03
[ [ "Schenke", "Bjoern", "" ], [ "Gale", "Charles", "" ], [ "Qin", "Guang-You", "" ] ]
We present results for the evolution of the momentum distribution of a hard parton traversing a brick of quark-gluon plasma, considering both bremsstrahlung and collisional energy loss. The complete leading order transition rates are included. We find a significant modification of the evolving momentum distribution com...
0812.2679
Wolf-Dieter Nowak
Wolf-Dieter Nowak
The Angular Momentum Structure of the Nucleon
8 pages. Updated version of invited talk at Sixth Int. Conf. on Perspectives in Hadronic Physics (May 2008, Trieste, Italy), publ. in AIP Conf. Proc. Vol. 1056, pp.87-94 (2008), Eds. S. Boffi et al.: refs. 8,9 added, fig. 3 replaced
AIP Conf.Proc.1056:87-94,2008
10.1063/1.3013084
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The proton spin budget is discussed. Results are presented from inclusive and semi-inclusive deep inelastic scattering and from deeply virtual Compton scattering. They permit interpretations towards the determination of various contributions to the proton spin.
[ { "created": "Sun, 14 Dec 2008 20:57:59 GMT", "version": "v1" } ]
2009-11-13
[ [ "Nowak", "Wolf-Dieter", "" ] ]
The proton spin budget is discussed. Results are presented from inclusive and semi-inclusive deep inelastic scattering and from deeply virtual Compton scattering. They permit interpretations towards the determination of various contributions to the proton spin.
1511.08612
Andreas Vogt
A.A. Almasy (DESY, Zeuthen), N.A. Lo Presti (Zurich U.) and A. Vogt (Liverpool U., Dept. Math.)
Generalized threshold resummation in inclusive DIS and semi-inclusive electron-positron annihilation
20 pages, LaTeX, 3 figures (.eps). DESY address until 31 August 2013
null
10.1007/JHEP01(2016)028
DESY 15-228, ZU-TH 42/15, LTH 1066
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present analytic all-order results for the highest three threshold logarithms of the space-like and time-like off-diagonal splitting functions and the corresponding coefficient functions for inclusive deep-inelastic scattering (DIS) and semi-inclusive e^+ e^- annihilation. All these results, obtained through an or...
[ { "created": "Fri, 27 Nov 2015 10:34:14 GMT", "version": "v1" } ]
2016-02-17
[ [ "Almasy", "A. A.", "", "DESY, Zeuthen" ], [ "Presti", "N. A. Lo", "", "Zurich U." ], [ "Vogt", "A.", "", "Liverpool U., Dept. Math." ] ]
We present analytic all-order results for the highest three threshold logarithms of the space-like and time-like off-diagonal splitting functions and the corresponding coefficient functions for inclusive deep-inelastic scattering (DIS) and semi-inclusive e^+ e^- annihilation. All these results, obtained through an orde...
hep-ph/0409024
Marc Sher
Marc Sher (William and Mary)
Universal Extra Dimensions and Kaluza-Klein Bound States
4 pages, contribution to the Proceedings of SUSY2004, June 17-23, 2004, Tsukuba, Japan
null
null
WM-04-114
hep-ph
null
We study the bounds states of the Kaluza-Klein (KK) excitations of quarks in models of Universal Extra Dimensions. Such bound states may be detected at future lepton colliders in the cross section for the pair-production of KK-quarks near threshold. For typical values of model parameters, we find the ``KK-quarkonia''...
[ { "created": "Thu, 2 Sep 2004 18:02:10 GMT", "version": "v1" } ]
2007-05-23
[ [ "Sher", "Marc", "", "William and Mary" ] ]
We study the bounds states of the Kaluza-Klein (KK) excitations of quarks in models of Universal Extra Dimensions. Such bound states may be detected at future lepton colliders in the cross section for the pair-production of KK-quarks near threshold. For typical values of model parameters, we find the ``KK-quarkonia'' h...
hep-ph/0602121
Hans-Werner Hammer
H.-W. Hammer (Bonn U.)
Nucleon Form Factors in Dispersion Theory
9 pages, 9 figures, invited talk at the Symposium "20 Years of Physics at the Mainz Microtron MAMI", October 20-22, 2005, Mainz, Germany
Eur.Phys.J. A28 (2006) 49-57
10.1140/epja/i2006-09-006-5
HISKP-TH-05/25
hep-ph
null
Dispersion relations provide a powerful tool to analyse the electromagnetic form factors of the nucleon both in the space-like and time-like regions with constraints from other experiments, unitarity, and perturbative QCD. We give a brief introduction into dispersion theory for nucleon form factors and present first ...
[ { "created": "Tue, 14 Feb 2006 09:13:14 GMT", "version": "v1" } ]
2007-05-23
[ [ "Hammer", "H. -W.", "", "Bonn U." ] ]
Dispersion relations provide a powerful tool to analyse the electromagnetic form factors of the nucleon both in the space-like and time-like regions with constraints from other experiments, unitarity, and perturbative QCD. We give a brief introduction into dispersion theory for nucleon form factors and present first re...
hep-ph/0108013
Tomoharu Suzuki
N. Haba, K. Hamaguchi, and Tomoharu Suzuki
Cosmological Constraint on the Zee model
10 pages, LaTeX
Phys.Lett. B519 (2001) 243-248
10.1016/S0370-2693(01)01120-0
DPNU-01-18, UT-956
hep-ph
null
It is well known that the Zee model induces small neutrino masses by radiative corrections, where the bi-maximal flavor mixing is possible. We analyze the cosmological condition in order for the baryon asymmetry generated in the early universe not to be washed out in the Zee model. Since the lepton number is violat...
[ { "created": "Thu, 2 Aug 2001 09:21:31 GMT", "version": "v1" }, { "created": "Mon, 10 Sep 2001 04:18:22 GMT", "version": "v2" } ]
2016-09-06
[ [ "Haba", "N.", "" ], [ "Hamaguchi", "K.", "" ], [ "Suzuki", "Tomoharu", "" ] ]
It is well known that the Zee model induces small neutrino masses by radiative corrections, where the bi-maximal flavor mixing is possible. We analyze the cosmological condition in order for the baryon asymmetry generated in the early universe not to be washed out in the Zee model. Since the lepton number is violated e...
0912.5063
Takashi Sano
H. Fujii and T. Sano
A chiral random matrix model with 2+1 flavors at finite temperature and density
5 pages, 3 figures
Phys.Rev.D81:037502,2010
10.1103/PhysRevD.81.037502
UT-Komaba/09-8
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Phase diagram of a chiral random matrix model with the degenerate ud quarks and the s quark at finite temperature and density is presented. The model exhibits a first-order transition at finite temperature for three massless flavors, owing to the U_A(1) breaking determinant term. We study the order of the transition ...
[ { "created": "Mon, 28 Dec 2009 14:23:43 GMT", "version": "v1" } ]
2010-04-06
[ [ "Fujii", "H.", "" ], [ "Sano", "T.", "" ] ]
Phase diagram of a chiral random matrix model with the degenerate ud quarks and the s quark at finite temperature and density is presented. The model exhibits a first-order transition at finite temperature for three massless flavors, owing to the U_A(1) breaking determinant term. We study the order of the transition wi...
hep-ph/9812522
Anatoli Efremov
A.V.Efremov, O.G.Smirnova and L.G.Tkatchev
Study of T-odd Quark Fragmentation Function in $Z^0\to 2$-jet Decay
5 pages, 1 eps figure, latex, sprocl.sty and wrapfig.sty. Talk at 13 Int. Symp. on High Energy Spin Phys., submitted to Proc
Nucl.Phys.Proc.Suppl. 74 (1999) 49-52
10.1016/S0920-5632(99)00131-0
null
hep-ph
null
The first probe of the correlation of the T-odd one-particle fragmentation function responsible for the left--right asymmetry of fragmentation of a transversely polarized quark and an antiquark is done by using the 1991-95 DELPHI data for $Z\to 2$ jet decay. Integrated over the fraction of longitudinal and transversa...
[ { "created": "Wed, 30 Dec 1998 11:34:32 GMT", "version": "v1" } ]
2009-10-31
[ [ "Efremov", "A. V.", "" ], [ "Smirnova", "O. G.", "" ], [ "Tkatchev", "L. G.", "" ] ]
The first probe of the correlation of the T-odd one-particle fragmentation function responsible for the left--right asymmetry of fragmentation of a transversely polarized quark and an antiquark is done by using the 1991-95 DELPHI data for $Z\to 2$ jet decay. Integrated over the fraction of longitudinal and transversal ...
hep-ph/9710561
Xuemin Jin
R. L. Jaffe, Xuemin Jin, and Jian Tang
Interference Fragmentation Functions and Valence Quark Spin Distributions in the Nucleon
6 pages ReVTeX, one figure embedded An error in the earlier version is fixed
Phys.Rev. D57 (1998) 5920-5922
10.1103/PhysRevD.57.5920
MIT-CTP-2690
hep-ph hep-ex nucl-ex nucl-th
null
We explore further applications of the twist-two quark interference fragmentation functions introduced earlier. We show that semi-inclusive production of two pions in the current fragmentation region in deep inelastic scattering of a longitudinally polarized electron on a longitudinally polarized nucleon can provide ...
[ { "created": "Fri, 31 Oct 1997 21:55:02 GMT", "version": "v1" }, { "created": "Fri, 23 Jan 1998 20:28:56 GMT", "version": "v2" } ]
2009-10-30
[ [ "Jaffe", "R. L.", "" ], [ "Jin", "Xuemin", "" ], [ "Tang", "Jian", "" ] ]
We explore further applications of the twist-two quark interference fragmentation functions introduced earlier. We show that semi-inclusive production of two pions in the current fragmentation region in deep inelastic scattering of a longitudinally polarized electron on a longitudinally polarized nucleon can provide a ...
1508.04083
Christopher T. Hill
Christopher T. Hill
Axion Induced Oscillating Electric Dipole Moment of the Electron
18 pages, 1 figure, v5 is equivalent to the published document
Phys. Rev. D 93, 025007 (2016)
10.1103/PhysRevD.93.025007
FERMILAB-PUB-15-350-T
hep-ph astro-ph.CO hep-ex hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A cosmic axion, via the electromagnetic anomaly, induces an oscillating electric dipole for the electron of frequency $m_a$ and strength $\sim$(few)$\times 10^{-32}$ e-cm, two orders of magnitude above the nucleon, and within a few orders of magnitude of the present standard model constant limit. We give a detailed s...
[ { "created": "Mon, 17 Aug 2015 17:06:56 GMT", "version": "v1" }, { "created": "Wed, 19 Aug 2015 19:25:32 GMT", "version": "v2" }, { "created": "Mon, 28 Sep 2015 17:44:23 GMT", "version": "v3" }, { "created": "Mon, 14 Dec 2015 19:22:17 GMT", "version": "v4" }, { "c...
2016-01-27
[ [ "Hill", "Christopher T.", "" ] ]
A cosmic axion, via the electromagnetic anomaly, induces an oscillating electric dipole for the electron of frequency $m_a$ and strength $\sim$(few)$\times 10^{-32}$ e-cm, two orders of magnitude above the nucleon, and within a few orders of magnitude of the present standard model constant limit. We give a detailed stu...
1501.03729
Riccardo Catena
Riccardo Catena and Bodo Schwabe
Form factors for dark matter capture by the Sun in effective theories
35 pages, 9 figures. In all calculations, $^{59}$Ni replaced by $^{58}$Ni. Main results unchanged
JCAP 1504 (2015) 04, 042
10.1088/1475-7516/2015/04/042
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the effective theory of isoscalar and isovector dark matter-nucleon interactions mediated by a heavy spin-1 or spin-0 particle, 8 isotope-dependent nuclear response functions can be generated in the dark matter scattering by nuclei. We compute the 8 nuclear response functions for the 16 most abundant elements in t...
[ { "created": "Thu, 15 Jan 2015 16:09:55 GMT", "version": "v1" }, { "created": "Fri, 17 Jul 2015 15:28:14 GMT", "version": "v2" }, { "created": "Wed, 19 Oct 2016 13:34:03 GMT", "version": "v3" } ]
2016-10-20
[ [ "Catena", "Riccardo", "" ], [ "Schwabe", "Bodo", "" ] ]
In the effective theory of isoscalar and isovector dark matter-nucleon interactions mediated by a heavy spin-1 or spin-0 particle, 8 isotope-dependent nuclear response functions can be generated in the dark matter scattering by nuclei. We compute the 8 nuclear response functions for the 16 most abundant elements in the...
1903.04008
Fu-Hu Liu
Pei-Pin Yang, Mai-Ying Duan, Fu-Hu Liu, Raghunath Sahoo
Multiparticle production and initial quasi-temperature from proton induced carbon collisions at $p_{Lab}=31$ GeV/$c$
22 pages, 16 figures
Advances in High Energy Physics 2020, 9542196 (2020) (28 pages)
10.1155/2020/9542196
null
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The momentum spectra of charged pions ($\pi^+$ and $\pi^-$) and kaons ($K^+$ and $K^-$), as well as protons ($p$), produced in the beam protons induced collisions in a 90-cm-long graphite target [proton-carbon ($p$-C) collisions] at the beam momentum $p_{Lab}=31$ GeV/$c$ are studied in the framework of a multisource ...
[ { "created": "Sun, 10 Mar 2019 15:16:46 GMT", "version": "v1" }, { "created": "Mon, 9 Sep 2019 06:43:33 GMT", "version": "v2" }, { "created": "Mon, 2 Dec 2019 05:30:48 GMT", "version": "v3" } ]
2020-01-22
[ [ "Yang", "Pei-Pin", "" ], [ "Duan", "Mai-Ying", "" ], [ "Liu", "Fu-Hu", "" ], [ "Sahoo", "Raghunath", "" ] ]
The momentum spectra of charged pions ($\pi^+$ and $\pi^-$) and kaons ($K^+$ and $K^-$), as well as protons ($p$), produced in the beam protons induced collisions in a 90-cm-long graphite target [proton-carbon ($p$-C) collisions] at the beam momentum $p_{Lab}=31$ GeV/$c$ are studied in the framework of a multisource th...
0911.2154
Antonino Di Piazza
A. Di Piazza, E. L\"otstedt, A. I. Milstein and C. H. Keitel
Effect of a strong laser field on $e^+ e^-$ photoproduction by relativistic nuclei
21 pages, 4 figures
Phys.Rev.A81:062122,2010
10.1103/PhysRevA.81.062122
null
hep-ph physics.atom-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the influence of a strong laser field on the Bethe-Heitler photoproduction process by a relativistic nucleus. The laser field propagates in the same direction as the incoming high-energy photon and it is taken into account exactly in the calculations. Two cases are considered in detail. In the first case, th...
[ { "created": "Wed, 11 Nov 2009 14:53:37 GMT", "version": "v1" }, { "created": "Wed, 23 Jun 2010 20:22:01 GMT", "version": "v2" } ]
2014-11-20
[ [ "Di Piazza", "A.", "" ], [ "Lötstedt", "E.", "" ], [ "Milstein", "A. I.", "" ], [ "Keitel", "C. H.", "" ] ]
We study the influence of a strong laser field on the Bethe-Heitler photoproduction process by a relativistic nucleus. The laser field propagates in the same direction as the incoming high-energy photon and it is taken into account exactly in the calculations. Two cases are considered in detail. In the first case, the ...
2309.10700
Harun Acaro\u{g}lu
Harun Acaro\u{g}lu, Monika Blanke, Mustafa Tabet
Opening the Higgs Portal to Lepton-Flavoured Dark Matter
28 pages, 7 figures. v2: typos corrected, matches published version
JHEP 11 (2023) 079
10.1007/JHEP11(2023)079
TTP23-028, P3H-23-050, DO-TH 23/11
hep-ph
http://creativecommons.org/licenses/by/4.0/
We study a simplified model of lepton-flavoured complex scalar dark matter coupling to right-handed leptons and the Higgs boson. The model is set up in the Dark Minimal Flavour Violation framework. In contrast to previous studies of similar models we consider the most general case and do not a priori constrain the hi...
[ { "created": "Tue, 19 Sep 2023 15:38:06 GMT", "version": "v1" }, { "created": "Mon, 20 Nov 2023 14:57:29 GMT", "version": "v2" } ]
2023-11-21
[ [ "Acaroğlu", "Harun", "" ], [ "Blanke", "Monika", "" ], [ "Tabet", "Mustafa", "" ] ]
We study a simplified model of lepton-flavoured complex scalar dark matter coupling to right-handed leptons and the Higgs boson. The model is set up in the Dark Minimal Flavour Violation framework. In contrast to previous studies of similar models we consider the most general case and do not a priori constrain the hier...
hep-ph/9611282
null
N.V. Krasnikov
Search for flavor lepton number violation in slepton decays at LHC
14 pages, latex, no figures, to be published in Proceedings of Protvino summer seminar on high energy physics
JETP Lett.65:148-153,1997
10.1134/1.567315
Preprint INR 927r/96
hep-ph
null
We show that in supersymmetric models with explicit flavor lepton number violation due to soft supersymmetry breaking mass terms there could be detectable flavor lepton number violation in slepton decays. We estimate LHC discovery potential of the lepton flavor number violation in slepton decays.
[ { "created": "Fri, 8 Nov 1996 16:00:38 GMT", "version": "v1" } ]
2011-04-15
[ [ "Krasnikov", "N. V.", "" ] ]
We show that in supersymmetric models with explicit flavor lepton number violation due to soft supersymmetry breaking mass terms there could be detectable flavor lepton number violation in slepton decays. We estimate LHC discovery potential of the lepton flavor number violation in slepton decays.
hep-ph/9501281
null
A.J. Buras and M. Muenz
Effective Hamiltonian for $B \ra X_s e^+ e^-$ Beyond Leading Logarithms in the NDR and HV Schemes
18 pages, LaTeX, 5 postscript figures included
Phys.Rev.D52:186-195,1995
10.1103/PhysRevD.52.186
MPI-PhT/94-96, TUM-T31-82/94
hep-ph
null
We calculate the next-to-leading QCD corrections to the effective Hamiltonian for \Bsee in the NDR and HV schemes. We give for the first time analytic expressions for the Wilson Coefficient of the operator $Q_9 = (\bar s b)_{V-A}(\bar e e)_V$ in the NDR and HV schemes. Calculating the relevant matrix elements of loca...
[ { "created": "Thu, 12 Jan 1995 12:45:31 GMT", "version": "v1" } ]
2016-09-01
[ [ "Buras", "A. J.", "" ], [ "Muenz", "M.", "" ] ]
We calculate the next-to-leading QCD corrections to the effective Hamiltonian for \Bsee in the NDR and HV schemes. We give for the first time analytic expressions for the Wilson Coefficient of the operator $Q_9 = (\bar s b)_{V-A}(\bar e e)_V$ in the NDR and HV schemes. Calculating the relevant matrix elements of local ...
1608.03099
Korinna Zapp
Raghav Kunnawalkam Elayavalli and Korinna Christine Zapp
Simulating V+jet processes in heavy ion collisions with JEWEL
8 pages, v2: version to be published
Eur. Phys. J. C (2016) 76: 695
10.1140/epjc/s10052-016-4534-6
CERN-TH-2016-183, MCnet-16-33
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Processes in which a jet recoils against an electroweak boson complement studies of jet quenching in heavy ion collisions at the LHC. As the boson does not interact strongly it escapes the dense medium unmodified and thus provides a more direct access to the hard scattering kinematics than can be obtained in di-jet e...
[ { "created": "Wed, 10 Aug 2016 09:16:19 GMT", "version": "v1" }, { "created": "Mon, 28 Nov 2016 13:34:41 GMT", "version": "v2" } ]
2016-12-23
[ [ "Elayavalli", "Raghav Kunnawalkam", "" ], [ "Zapp", "Korinna Christine", "" ] ]
Processes in which a jet recoils against an electroweak boson complement studies of jet quenching in heavy ion collisions at the LHC. As the boson does not interact strongly it escapes the dense medium unmodified and thus provides a more direct access to the hard scattering kinematics than can be obtained in di-jet eve...
hep-ph/9903428
Manmohan Gupta
Monika Randhawa, V. Bhatnagar, P.S. Gill and M. Gupta
Unique Mass Texture for Quarks and Leptons
12 pages, LaTeX,some changes in the references,minor changes in the text,to appear in Phys Rev D(Rapid communications)
Phys.Rev.D60:051301,1999
10.1103/PhysRevD.60.051301
null
hep-ph
null
Texture specific quark mass matrices which are hermitian and hierarchical are examined in detail . In the case of texture 6 zeros matrices, out of sixteen possibilities examined by us, none is able to fit the low energy data (LED), for example, $V_{us} = 0.2196 \pm 0.0023$, $V_{cb} = 0.0395 \pm 0.0017$, $\frac{V_{ub}...
[ { "created": "Mon, 22 Mar 1999 11:47:44 GMT", "version": "v1" }, { "created": "Wed, 30 Jun 1999 06:14:41 GMT", "version": "v2" } ]
2009-12-30
[ [ "Randhawa", "Monika", "" ], [ "Bhatnagar", "V.", "" ], [ "Gill", "P. S.", "" ], [ "Gupta", "M.", "" ] ]
Texture specific quark mass matrices which are hermitian and hierarchical are examined in detail . In the case of texture 6 zeros matrices, out of sixteen possibilities examined by us, none is able to fit the low energy data (LED), for example, $V_{us} = 0.2196 \pm 0.0023$, $V_{cb} = 0.0395 \pm 0.0017$, $\frac{V_{ub}}{...
1503.02789
T. Lappi
B. Duclou\'e, T. Lappi and H. M\"antysaari
Forward $J/\psi$ production in proton-nucleus collisions at high energy
8 pages, 10 figures, RevTeX. V2: small clarifications, 1 added figure, published in PRD
Phys. Rev. D 91, 114005 (2015)
10.1103/PhysRevD.91.114005
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Inclusive production of $J/\psi$ mesons, especially at forward rapidities, is an important probe of small-x gluons in protons and nuclei. In this paper we re-evaluate the production cross sections in the Color Glass Condensate framework, where the process is described by a large x gluon from the probe splitting into ...
[ { "created": "Tue, 10 Mar 2015 07:17:48 GMT", "version": "v1" }, { "created": "Mon, 8 Jun 2015 11:16:54 GMT", "version": "v2" } ]
2015-06-10
[ [ "Ducloué", "B.", "" ], [ "Lappi", "T.", "" ], [ "Mäntysaari", "H.", "" ] ]
Inclusive production of $J/\psi$ mesons, especially at forward rapidities, is an important probe of small-x gluons in protons and nuclei. In this paper we re-evaluate the production cross sections in the Color Glass Condensate framework, where the process is described by a large x gluon from the probe splitting into a ...
hep-ph/9607235
C. S. Kim
C.S. Kim (KEK, Japan and Yonsei University, Korea)
A Model-independent Way to Measure $|V_{ub}/V_{cb}|$
10 pages, no figures. Talk given at Asian Science Seminar (KOSEF-JSPS Winter School), Seoul Korea, on February 21 - 28 (1996). Proceedings will be published by J. Kor. Phys. Soc. (1996)
J.Korean Phys.Soc.29:S257-S260,1996
null
null
hep-ph
null
We propose a new model-independent method, to determine the ratio $|V_{ub}/V_{cb}|$, which is theoretically described by the phase space factor and the well-known perturbative QCD correction only. We explore the possible experimental options: the measurement of inclusive hadronic invariant mass distributions. We also...
[ { "created": "Thu, 4 Jul 1996 06:44:26 GMT", "version": "v1" } ]
2014-11-17
[ [ "Kim", "C. S.", "", "KEK, Japan and Yonsei University, Korea" ] ]
We propose a new model-independent method, to determine the ratio $|V_{ub}/V_{cb}|$, which is theoretically described by the phase space factor and the well-known perturbative QCD correction only. We explore the possible experimental options: the measurement of inclusive hadronic invariant mass distributions. We also d...
hep-ph/9403251
null
R.D.Ball, V.Barone, S. Forte, M. Genovese
Anomalous Evolution of Nonsinglet Nucleon Structure Functions
13, harvmac 6 figures, CERN-TH.7189/94 and DFTT 02/94
Phys.Lett.B329:505-513,1994
10.1016/0370-2693(94)91096-0
null
hep-ph
null
We calculate the scale dependence of nonsinglet nucleon structure functions. Due to anomalous axial symmetry breaking a large flavour asymmetry of the quark--antiquark sea is generated nonperturbatively. This produces a strong scale dependence of the nonsinglet structure function in an intermediate range of $Q^2$. Ev...
[ { "created": "Wed, 9 Mar 1994 14:29:47 GMT", "version": "v1" } ]
2014-11-17
[ [ "Ball", "R. D.", "" ], [ "Barone", "V.", "" ], [ "Forte", "S.", "" ], [ "Genovese", "M.", "" ] ]
We calculate the scale dependence of nonsinglet nucleon structure functions. Due to anomalous axial symmetry breaking a large flavour asymmetry of the quark--antiquark sea is generated nonperturbatively. This produces a strong scale dependence of the nonsinglet structure function in an intermediate range of $Q^2$. Evol...
2012.06598
Janusz Gluza Dr
Ievgen Dubovyk, Ayres Freitas, Janusz Gluza, Krzysztof Grzanka, Tord Riemann, Johann Usovitsch
Electroweak precision pseudo-observables at the $e^+e^-$ Z-resonance peak
Contribution to ICHEP2020
null
null
DESY 20-184, KW 20-002
hep-ph
http://creativecommons.org/licenses/by/4.0/
Phenomenologically relevant electroweak precision pseudo-observables related to Z-boson physics are discussed in the context of the strong experimental demands of future $e^+e^-$ colliders. The recent completion of two-loop Z-boson results is summarized and a prospect for the 3-loop Standard Model calculation of the ...
[ { "created": "Fri, 11 Dec 2020 19:08:56 GMT", "version": "v1" } ]
2020-12-15
[ [ "Dubovyk", "Ievgen", "" ], [ "Freitas", "Ayres", "" ], [ "Gluza", "Janusz", "" ], [ "Grzanka", "Krzysztof", "" ], [ "Riemann", "Tord", "" ], [ "Usovitsch", "Johann", "" ] ]
Phenomenologically relevant electroweak precision pseudo-observables related to Z-boson physics are discussed in the context of the strong experimental demands of future $e^+e^-$ colliders. The recent completion of two-loop Z-boson results is summarized and a prospect for the 3-loop Standard Model calculation of the Z-...
1104.2264
Alon Faraggi
Kyriakos Christodoulides, Alon E. Faraggi and John Rizos
Top Quark Mass in Exophobic Pati--Salam Heterotic String Model
16 pages. 2 figures. Minor typos corrected
Phys.Lett.B702:81-89,2011
10.1016/j.physletb.2011.06.051
LTH-895
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyse the phenomenology of an exemplary exophobic Pati-Salam heterotic string vacuum, in which no exotic fractionally charged states exist in the massless string spectrum. Our model also contains the Higgs representations that are needed to break the gauge symmetry to that of the Standard Model and to generate f...
[ { "created": "Tue, 12 Apr 2011 16:35:31 GMT", "version": "v1" }, { "created": "Wed, 4 May 2011 17:18:10 GMT", "version": "v2" } ]
2011-07-26
[ [ "Christodoulides", "Kyriakos", "" ], [ "Faraggi", "Alon E.", "" ], [ "Rizos", "John", "" ] ]
We analyse the phenomenology of an exemplary exophobic Pati-Salam heterotic string vacuum, in which no exotic fractionally charged states exist in the massless string spectrum. Our model also contains the Higgs representations that are needed to break the gauge symmetry to that of the Standard Model and to generate fer...
1108.4025
Adam Martin
Adam Martin
Same bump, different channel: Higgs fakes from technicolor
6 pages, 9 figures
null
10.1103/PhysRevD.84.115007
FERMILAB-PUB-11-387-T
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Resonant production of a light, narrow techni-rho, followed by the decay $\rho_T \rightarrow W+\pi_T(jj)$ has been proposed as an explanation of the Wjj excess observed by CDF. If the $\pi_T$ decays to $\tau+\nu/\tau^+ \tau^-$ rather than to jets, subsequent leptonic $\tau$ decay leads to $\ell^+\ell^- \nu\nu\bar{\nu...
[ { "created": "Fri, 19 Aug 2011 18:47:12 GMT", "version": "v1" } ]
2013-05-29
[ [ "Martin", "Adam", "" ] ]
Resonant production of a light, narrow techni-rho, followed by the decay $\rho_T \rightarrow W+\pi_T(jj)$ has been proposed as an explanation of the Wjj excess observed by CDF. If the $\pi_T$ decays to $\tau+\nu/\tau^+ \tau^-$ rather than to jets, subsequent leptonic $\tau$ decay leads to $\ell^+\ell^- \nu\nu\bar{\nu}\...
1101.1130
Xing-Gang Wu
Jia-Wei Zhang, Xing-Gang Wu, Tao Zhong, Yao Yu and Zhen-Yun Fang
Hadronic Production of the Doubly Heavy Baryon $\Xi_{bc}$ at LHC
9 pages, 8 figures, 6 tables. References updated and more discussions are added. To be published in Phys.Rev.D
Phys.Rev.D83:034026,2011
10.1103/PhysRevD.83.034026
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the hadronic production of the doubly heavy baryon $\Xi_{bc}$ at the large hadron collider (LHC), where contributions from the four $(bc)$-diquark states $(bc)_{\bf\bar{3},6}[^1S_0]$ and $(bc)_{\bf\bar{3},6}[^3S_1]$ have been taken into consideration. Numerical results show that under the condition of ...
[ { "created": "Thu, 6 Jan 2011 02:35:23 GMT", "version": "v1" }, { "created": "Mon, 17 Jan 2011 15:45:48 GMT", "version": "v2" }, { "created": "Sat, 29 Jan 2011 03:55:26 GMT", "version": "v3" } ]
2011-02-25
[ [ "Zhang", "Jia-Wei", "" ], [ "Wu", "Xing-Gang", "" ], [ "Zhong", "Tao", "" ], [ "Yu", "Yao", "" ], [ "Fang", "Zhen-Yun", "" ] ]
We investigate the hadronic production of the doubly heavy baryon $\Xi_{bc}$ at the large hadron collider (LHC), where contributions from the four $(bc)$-diquark states $(bc)_{\bf\bar{3},6}[^1S_0]$ and $(bc)_{\bf\bar{3},6}[^3S_1]$ have been taken into consideration. Numerical results show that under the condition of $p...
1002.1155
Giovanni Salm\`e
T. Frederico (ITA- S. Jose' dosCampos), E. Pace (Rome Univ. "Tor Vergata" and INFN), S. Pisano (IPN - Orsay) G. Salme' (INFN-Rome)
A covariant investigation of Neutral Vector Mesons: dynamical properties and electromagnetic decay widths
6 pages, 4 figures. Proceedings of LC2009, to appear in Nucl. Phys. B suppl
null
10.1016/j.nuclphysbps.2010.02.042
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A simple, but fully-covariant model for describing neutral Vector Mesons, in both light and heavy sectors, is briefly illustrated. The main ingredients of our relativistic constituent model are i) an Ansatz for the Bethe-Salpeter vertex for Vector Mesons, and ii) a Mandelstam-like formula for the electromagnetic deca...
[ { "created": "Fri, 5 Feb 2010 08:54:17 GMT", "version": "v1" } ]
2015-05-18
[ [ "Frederico", "T.", "", "ITA- S. Jose' dosCampos" ], [ "Pace", "E.", "", "Rome Univ. \"Tor\n Vergata\" and INFN" ], [ "Pisano", "S.", "", "IPN - Orsay" ], [ "Salme'", "G.", "", "INFN-Rome" ] ]
A simple, but fully-covariant model for describing neutral Vector Mesons, in both light and heavy sectors, is briefly illustrated. The main ingredients of our relativistic constituent model are i) an Ansatz for the Bethe-Salpeter vertex for Vector Mesons, and ii) a Mandelstam-like formula for the electromagnetic decay ...
1502.07173
Benedict von Harling
Tony Gherghetta, Benedict von Harling, Anibal D. Medina, Michael A. Schmidt, Timothy Trott
SUSY Implications from WIMP Annihilation into Scalars at the Galactic Centre
45 pages, 18 figures, 5 tables; v2: references added, version published in PRD
Phys. Rev. D 91, 105004 (2015)
10.1103/PhysRevD.91.105004
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
An excess in gamma-rays emanating from the galactic centre has recently been observed in the Fermi-LAT data. This signal can be interpreted as resulting from WIMP annihilation, with the spectrum well-fit by dark matter annihilating dominantly into either bottom-quark or Higgs pairs. Supersymmetric models provide a we...
[ { "created": "Wed, 25 Feb 2015 14:18:56 GMT", "version": "v1" }, { "created": "Sun, 10 May 2015 18:35:59 GMT", "version": "v2" } ]
2015-05-13
[ [ "Gherghetta", "Tony", "" ], [ "von Harling", "Benedict", "" ], [ "Medina", "Anibal D.", "" ], [ "Schmidt", "Michael A.", "" ], [ "Trott", "Timothy", "" ] ]
An excess in gamma-rays emanating from the galactic centre has recently been observed in the Fermi-LAT data. This signal can be interpreted as resulting from WIMP annihilation, with the spectrum well-fit by dark matter annihilating dominantly into either bottom-quark or Higgs pairs. Supersymmetric models provide a well...
2005.05975
Christoph Andreas Ternes
Gabriela Barenboim, Christoph A. Ternes, Mariam T\'ortola
CPT and CP, an entangled couple
8 pages, 6 figures
null
10.1007/JHEP07(2020)155
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Even though it is undoubtedly very appealing to interpret the latest T2K results as evidence of CP violation, this claim assumes CPT conservation in the neutrino sector to an extent that has not been tested yet. As we will show, T2K results are not robust against a CPT-violating explanation. On the contrary, a CPT-vi...
[ { "created": "Tue, 12 May 2020 18:00:01 GMT", "version": "v1" } ]
2020-08-26
[ [ "Barenboim", "Gabriela", "" ], [ "Ternes", "Christoph A.", "" ], [ "Tórtola", "Mariam", "" ] ]
Even though it is undoubtedly very appealing to interpret the latest T2K results as evidence of CP violation, this claim assumes CPT conservation in the neutrino sector to an extent that has not been tested yet. As we will show, T2K results are not robust against a CPT-violating explanation. On the contrary, a CPT-viol...
1503.00419
Seung-il Nam
Seung-il Nam, Hyun-Kyu Jo
Photoproduction of $\Lambda(1405)$ with the two-pole structure
13 pages, 25 figures
null
null
PKNU-NuHaTh-2015-02
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the $\Lambda(1405,1/2^-)\equiv\Lambda^*$ photoproduction off the proton target, i.e. $\gamma p\to K^+\Lambda^*$, considering explicitly its two-pole structure, the higher ($\Lambda^*_H:\,1430\,\mathrm{MeV}$) and lower ($\Lambda^*_L:\,1390\,\mathrm{MeV}$) mass-pole contributions, suggested by the chiral...
[ { "created": "Mon, 2 Mar 2015 05:37:43 GMT", "version": "v1" } ]
2015-03-03
[ [ "Nam", "Seung-il", "" ], [ "Jo", "Hyun-Kyu", "" ] ]
We investigate the $\Lambda(1405,1/2^-)\equiv\Lambda^*$ photoproduction off the proton target, i.e. $\gamma p\to K^+\Lambda^*$, considering explicitly its two-pole structure, the higher ($\Lambda^*_H:\,1430\,\mathrm{MeV}$) and lower ($\Lambda^*_L:\,1390\,\mathrm{MeV}$) mass-pole contributions, suggested by the chiral-u...
hep-ph/0303131
David Blaschke
H.-J. Schulze (Catania), D. Blaschke (Rostock and Dubna)
Pion broadening and low-mass dilepton production
11 pages, 5 figures
Phys.Part.Nucl.Lett. 1 (2004) 70-75
null
E2-2002-225
hep-ph
null
We determine mass and transverse momentum spectra of dileptons produced in Pb+Au (158 GeV/u) collisions within a pion annihilation model. A fit to the data requires simultaneous mass reduction and broadening of the in-medium rho propagator. The introduction of a finite pion width, as required within self-consiste...
[ { "created": "Fri, 14 Mar 2003 20:56:55 GMT", "version": "v1" } ]
2016-09-06
[ [ "Schulze", "H. -J.", "", "Catania" ], [ "Blaschke", "D.", "", "Rostock and Dubna" ] ]
We determine mass and transverse momentum spectra of dileptons produced in Pb+Au (158 GeV/u) collisions within a pion annihilation model. A fit to the data requires simultaneous mass reduction and broadening of the in-medium rho propagator. The introduction of a finite pion width, as required within self-consistent app...
hep-ph/0305277
Andriy Kostyuk
A.P. Kostyuk, M.I. Gorenstein, H. Stoecker, and W. Greiner
Charm coalescence at relativistic energies
5 pages, RevTeX4, 1 PS-figure. V2: The final PHENIX data are analyzed
Phys.Rev. C68 (2003) 041902
10.1103/PhysRevC.68.041902
null
hep-ph
null
The J/psi yield at midrapidity at the top RHIC (relativistic heavy ion collider) energy is calculated within the statistical coalescence model, which assumes charmonium formation at the late stage of the reaction from the charm quarks and antiquarks created earlier in hard parton collisions. The results are compared ...
[ { "created": "Fri, 23 May 2003 22:37:47 GMT", "version": "v1" }, { "created": "Fri, 17 Oct 2003 21:31:57 GMT", "version": "v2" } ]
2009-11-10
[ [ "Kostyuk", "A. P.", "" ], [ "Gorenstein", "M. I.", "" ], [ "Stoecker", "H.", "" ], [ "Greiner", "W.", "" ] ]
The J/psi yield at midrapidity at the top RHIC (relativistic heavy ion collider) energy is calculated within the statistical coalescence model, which assumes charmonium formation at the late stage of the reaction from the charm quarks and antiquarks created earlier in hard parton collisions. The results are compared to...
hep-ph/0101191
null
V.A. Maisheev
On propagation of photon in a medium
11 pages, Latex, typos (text, Eq30,37) corrected, Eq41 added
null
null
null
hep-ph astro-ph cond-mat physics.optics
null
The equations for variation of the Stokes parameters and intensity of photons propagating in a medium, whose optical properties may be described by the permittivity tensor, are derived. Classification of different cases of photon propagation is suggested on a basis of these equations.
[ { "created": "Wed, 17 Jan 2001 06:46:53 GMT", "version": "v1" }, { "created": "Wed, 24 Jan 2001 06:47:23 GMT", "version": "v2" }, { "created": "Mon, 5 Feb 2001 07:55:38 GMT", "version": "v3" } ]
2007-05-23
[ [ "Maisheev", "V. A.", "" ] ]
The equations for variation of the Stokes parameters and intensity of photons propagating in a medium, whose optical properties may be described by the permittivity tensor, are derived. Classification of different cases of photon propagation is suggested on a basis of these equations.
hep-ph/0409163
Mu-Chun Chen
Mu-Chun Chen and Sally Dawson
The Littlest Higgs Model and One-Loop Electroweak Precision Constraints
4 pages; 2 figures; Talk presented at SUSY'04
Tsukuba 2004, Supersymmetry and Unification of Fundamental Interactions, 921-924.
null
BNL-HET-04/15
hep-ph
null
We present in this talk the one-loop electroweak precision constraints in the Littlest Higgs model, including the logarithmically enhanced contributions from both fermion and scalar loops. We find the one-loop contributions are comparable to the tree level corrections in some regions of parameter space. A low cutoff ...
[ { "created": "Tue, 14 Sep 2004 20:11:15 GMT", "version": "v1" } ]
2007-05-23
[ [ "Chen", "Mu-Chun", "" ], [ "Dawson", "Sally", "" ] ]
We present in this talk the one-loop electroweak precision constraints in the Littlest Higgs model, including the logarithmically enhanced contributions from both fermion and scalar loops. We find the one-loop contributions are comparable to the tree level corrections in some regions of parameter space. A low cutoff sc...
hep-ph/9706281
Hiroshi Nunokawa
Hisakazu Minakata and Hiroshi Nunokawa
How to Measure CP Violation in Neutrino Oscillation Experiments?
RevTex, 17 pages including 4 ps figures
Phys.Lett.B413:369-377,1997
10.1016/S0370-2693(97)01108-8
TMUP-HEL-9705, FTUV/97-31, IFIC/97-30
hep-ph
null
We propose a new method for measuring CP violation in neutrino oscillation experiments. The idea is to isolate the term due to the CP-violating phase out of the oscillation probability by taking difference between yields of two (or three) detectors at path-lengths $L = 250 (\frac{E}{1.35 {GeV}}) (\frac{\Delta m^2}{10...
[ { "created": "Sat, 7 Jun 1997 18:50:33 GMT", "version": "v1" } ]
2011-02-24
[ [ "Minakata", "Hisakazu", "" ], [ "Nunokawa", "Hiroshi", "" ] ]
We propose a new method for measuring CP violation in neutrino oscillation experiments. The idea is to isolate the term due to the CP-violating phase out of the oscillation probability by taking difference between yields of two (or three) detectors at path-lengths $L = 250 (\frac{E}{1.35 {GeV}}) (\frac{\Delta m^2}{10^{...
1209.3716
Mikhail Voloshin
M. B. Voloshin
Pion transitions from \chi_{cJ} to \eta_c
6 pages
null
10.1103/PhysRevD.86.074033
FTPI-MINN-12/30; UMN-TH-3118/12
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The charmonium transitions from the $\chi_{cJ}$ states to $\eta_c$ with emission of one or two pions are considered. It is shown that the only processes of such type arising in the leading order in the QCD multipole expansion are the decays $\chi_{c1} \to \eta_c \pi^+ \pi^-$ and $\chi_{c0} \to \eta_c \pi^0$. The abso...
[ { "created": "Mon, 17 Sep 2012 16:45:15 GMT", "version": "v1" } ]
2013-05-30
[ [ "Voloshin", "M. B.", "" ] ]
The charmonium transitions from the $\chi_{cJ}$ states to $\eta_c$ with emission of one or two pions are considered. It is shown that the only processes of such type arising in the leading order in the QCD multipole expansion are the decays $\chi_{c1} \to \eta_c \pi^+ \pi^-$ and $\chi_{c0} \to \eta_c \pi^0$. The absolu...
1004.0645
Chiara Arina
Chiara Arina, Francois-Xavier Josse-Michaux and Narendra Sahu
Constraining Sommerfeld Enhanced Annihilation Cross-sections of Dark Matter via Direct Searches
6 pages, 5 figures. v2: discussion on BBN constraints added and BBN bounds implementend in figure 3, updated references. Version to appear on Phys.Lett.B
Phys.Lett.B691:219-224,2010
10.1016/j.physletb.2010.06.037
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In a large class of models we show that the light scalar field responsible for the Sommerfeld enhancement in the annihilation of dark matter leads to observable direct detection rates, due to its mixing with the standard model Higgs. As a result the large annihilation cross-section of dark matter at present epoch, re...
[ { "created": "Mon, 5 Apr 2010 15:04:46 GMT", "version": "v1" }, { "created": "Mon, 5 Jul 2010 10:39:39 GMT", "version": "v2" } ]
2014-11-20
[ [ "Arina", "Chiara", "" ], [ "Josse-Michaux", "Francois-Xavier", "" ], [ "Sahu", "Narendra", "" ] ]
In a large class of models we show that the light scalar field responsible for the Sommerfeld enhancement in the annihilation of dark matter leads to observable direct detection rates, due to its mixing with the standard model Higgs. As a result the large annihilation cross-section of dark matter at present epoch, requ...
hep-ph/9812448
Dieter Mueller
D. M\"uller, D. Robaschik, B. Geyer (Univ. of Leipzig), F.-M. Dittes (Rossendorf), J. Ho\v{r}ej\v{s}i (Charles Univ. Prague)
Wave Functions, Evolution Equations and Evolution Kernels from Light-Ray Operators of QCD
RevTeX, 42 pages, 4 figures (LaTeX)
Fortsch.Phys. 42 (1994) 101
10.1002/prop.2190420202
NTZ 91/6
hep-ph
null
The widely used nonperturbative wave functions and distribution functions of QCD are determined as matrix elements of light-ray operators. These operators appear as large momentum limit of nonlocal hadron operators or as summed up local operators in light-cone expansions. Nonforward one-particle matrix elements of su...
[ { "created": "Sun, 20 Dec 1998 17:23:31 GMT", "version": "v1" } ]
2015-06-25
[ [ "Müller", "D.", "", "Univ. of Leipzig" ], [ "Robaschik", "D.", "", "Univ. of Leipzig" ], [ "Geyer", "B.", "", "Univ. of Leipzig" ], [ "Dittes", "F. -M.", "", "Rossendorf" ], [ "Hořejši", "J.", "", "Charles Univ. Prague...
The widely used nonperturbative wave functions and distribution functions of QCD are determined as matrix elements of light-ray operators. These operators appear as large momentum limit of nonlocal hadron operators or as summed up local operators in light-cone expansions. Nonforward one-particle matrix elements of such...
hep-ph/0306040
Toru Umekawa
Toru Umekawa (Tokyo Inst. Tech.)
Light Scalar Mesons in the Improved Ladder Approximation of QCD with Strong $U_A(1)$ Breaking
79 pages, 24 figures, Ph.D. Thesis (Advisor: Makoto Oka)
null
null
null
hep-ph
null
The spectrum and the mixing angle of the light scalar nonet mesons are studied using the extended Nambu-Jona-Lasinio (NJL) model as well as the improved ladder approximation (ILA) of QCD with U_A(1) symmetry breaking interaction. The U_A(1) breaking is represented by the Kobayashi-Maskawa-'t Hooft (KMT) interaction. ...
[ { "created": "Thu, 5 Jun 2003 05:23:29 GMT", "version": "v1" } ]
2016-09-06
[ [ "Umekawa", "Toru", "", "Tokyo Inst. Tech." ] ]
The spectrum and the mixing angle of the light scalar nonet mesons are studied using the extended Nambu-Jona-Lasinio (NJL) model as well as the improved ladder approximation (ILA) of QCD with U_A(1) symmetry breaking interaction. The U_A(1) breaking is represented by the Kobayashi-Maskawa-'t Hooft (KMT) interaction. Th...
1106.6141
Kingman Cheung
Kingman Cheung and Jeonghyeon Song
The Golden Mode for a Baryonic $Z'$ Boson at Hadronic Colliders: pp/ppbar -> WZ' -> l nu b b-bar
16 pages, no figures
PHYS. REV. D84, 034043 (2011)
10.1103/PhysRevD.84.034043
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Associated production of a baryonic Z' boson with the W boson can account for the excess in Wjj production observed by the CDF collaboration at the Tevatron. We analyze other possible channels of this Z' at the Tevatron and at the LHC, including \gamma Z' and Z Z' with the Z' -> jj. We show that the chances of confir...
[ { "created": "Thu, 30 Jun 2011 08:28:25 GMT", "version": "v1" } ]
2011-12-23
[ [ "Cheung", "Kingman", "" ], [ "Song", "Jeonghyeon", "" ] ]
Associated production of a baryonic Z' boson with the W boson can account for the excess in Wjj production observed by the CDF collaboration at the Tevatron. We analyze other possible channels of this Z' at the Tevatron and at the LHC, including \gamma Z' and Z Z' with the Z' -> jj. We show that the chances of confirmi...
hep-ph/0006345
Andreas S. Kronfeld
Andreas S. Kronfeld and James N. Simone
Computation of $\bar{\Lambda}$ and $\lambda_1$ with Lattice QCD
7 pp, 4 figs (in v2 Fig. 4 now shows Ref. 13, as advertised); in v3 error in BLM scale is corrected
Phys.Lett. B490 (2000) 228-235; Erratum-ibid. B495 (2000) 441-442
10.1016/S0370-2693(00)01277-6
FERMILAB-Pub-00/148-T
hep-ph hep-lat
null
We pursue a new method, based on lattice QCD, for determining the quantities $\bar{\Lambda}$, $\lambda_1$, and $\lambda_2$ of heavy-quark effective theory. We combine Monte Carlo data for the meson mass spectrum with perturbative calculations of the short-distance behavior, to extract $\bar{\Lambda}$ and $\lambda_1$ ...
[ { "created": "Thu, 29 Jun 2000 22:18:27 GMT", "version": "v1" }, { "created": "Fri, 30 Jun 2000 15:50:32 GMT", "version": "v2" }, { "created": "Mon, 31 Jul 2000 23:55:38 GMT", "version": "v3" } ]
2009-10-31
[ [ "Kronfeld", "Andreas S.", "" ], [ "Simone", "James N.", "" ] ]
We pursue a new method, based on lattice QCD, for determining the quantities $\bar{\Lambda}$, $\lambda_1$, and $\lambda_2$ of heavy-quark effective theory. We combine Monte Carlo data for the meson mass spectrum with perturbative calculations of the short-distance behavior, to extract $\bar{\Lambda}$ and $\lambda_1$ fr...
2110.10853
Hongxia Huang
Ye Yan, Yuheng Wu, Xiaohuang Hu, Hongxia Huang and Jialun Ping
Fully heavy pentaquarks in quark models
8 pages, 7 figures. arXiv admin note: text overlap with arXiv:2006.13745
null
10.1103/PhysRevD.105.014027
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
The fully heavy pentaquarks $cccc\bar{c}$ and $bbbb\bar{b}$ are systematically investigated within the chiral quark model and quark delocalization color screening model. The results are consistent in both two moelds, and the effect of the channel-coupling is crucial for forming a bound state of the fully heavy pentaq...
[ { "created": "Thu, 21 Oct 2021 02:18:19 GMT", "version": "v1" } ]
2022-02-09
[ [ "Yan", "Ye", "" ], [ "Wu", "Yuheng", "" ], [ "Hu", "Xiaohuang", "" ], [ "Huang", "Hongxia", "" ], [ "Ping", "Jialun", "" ] ]
The fully heavy pentaquarks $cccc\bar{c}$ and $bbbb\bar{b}$ are systematically investigated within the chiral quark model and quark delocalization color screening model. The results are consistent in both two moelds, and the effect of the channel-coupling is crucial for forming a bound state of the fully heavy pentaqua...
1111.2006
Hiroshi de Sandes
H. de Sandes and R. Rosenfeld
Radion-Higgs mixing effects on bounds from LHC Higgs Searches
v2: constrains updated using ATLAS/CMS combined data(HCP2011); new plots; discussion on LHC signals added; references added. v3: constrains updated using CMS 5fb^-1 data. v4: PRD version
Phys. Rev. D 85, 053003 (2012)
10.1103/PhysRevD.85.053003
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The radion, a scalar particle associated with the radius of a compact warped extra dimension, may be the lightest new particle in this class of models. Its couplings to SM particles are proportional to the their masses, similar to the usual Higgs boson, but suppressed by a scale $\Lambda_r$, the radion vacuum expecta...
[ { "created": "Tue, 8 Nov 2011 18:38:00 GMT", "version": "v1" }, { "created": "Sun, 11 Dec 2011 14:01:59 GMT", "version": "v2" }, { "created": "Thu, 15 Dec 2011 13:48:11 GMT", "version": "v3" }, { "created": "Wed, 21 Mar 2012 11:00:42 GMT", "version": "v4" } ]
2012-03-22
[ [ "de Sandes", "H.", "" ], [ "Rosenfeld", "R.", "" ] ]
The radion, a scalar particle associated with the radius of a compact warped extra dimension, may be the lightest new particle in this class of models. Its couplings to SM particles are proportional to the their masses, similar to the usual Higgs boson, but suppressed by a scale $\Lambda_r$, the radion vacuum expectati...
1510.06202
Steven D. Bass
Steven D. Bass, Pawel Moskal
Etaprime interactions with nucleons and nuclei
12 pages, invited talk at the Jagiellonian Symposium on Fundamental and Applied Subatomic Physics, Cracow, Poland, June 7-12 2015. arXiv admin note: substantial text overlap with arXiv:1411.7006, arXiv:1311.7248, arXiv:1411.6978
null
10.5506/APhysPolB.47.373
null
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We summarise recent progress in theory and experiment towards understanding etaprime meson interactions with nucleons and nuclei. Highlights include the production mechanism of etaprime mesons in proton-proton collisions close to threshold, the etaprime effective mass shift in nuclei and the determination of the etap...
[ { "created": "Wed, 21 Oct 2015 10:38:05 GMT", "version": "v1" }, { "created": "Thu, 21 Jan 2016 10:12:39 GMT", "version": "v2" } ]
2019-05-22
[ [ "Bass", "Steven D.", "" ], [ "Moskal", "Pawel", "" ] ]
We summarise recent progress in theory and experiment towards understanding etaprime meson interactions with nucleons and nuclei. Highlights include the production mechanism of etaprime mesons in proton-proton collisions close to threshold, the etaprime effective mass shift in nuclei and the determination of the etapri...
2402.19413
Cai-Ping Jia
Cai-Ping Jia, Yu Jia, Junliang Lu, Zhewen Mo, and Jia-Yue Zhang
Hard-scattering approach to strongly hindered electric dipole transitions between heavy quarkonia
18 pages, 2 figures, 4 tables
null
null
JLAB-THY-24-3998
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The conventional wisdom in dealing with electromagnetic transition between heavy quarkonia is the multipole expansion, when the emitted photon has a typical energy of order quarkonium binding energy. Nevertheless, in the case when the energy carried by the photon is of order typical heavy quark momentum, the multipol...
[ { "created": "Thu, 29 Feb 2024 18:10:33 GMT", "version": "v1" } ]
2024-03-14
[ [ "Jia", "Cai-Ping", "" ], [ "Jia", "Yu", "" ], [ "Lu", "Junliang", "" ], [ "Mo", "Zhewen", "" ], [ "Zhang", "Jia-Yue", "" ] ]
The conventional wisdom in dealing with electromagnetic transition between heavy quarkonia is the multipole expansion, when the emitted photon has a typical energy of order quarkonium binding energy. Nevertheless, in the case when the energy carried by the photon is of order typical heavy quark momentum, the multipole ...
hep-ph/0510380
Urko Reinosa
U. Reinosa
Non-perturbative renormalization of Phi-derivable approximations in theories with multiple fields
4 pages, poster contribution at the Workshop on Quark Gluon Plasma Thermalization, Vienna, August 10-12, 2005 Minor changes: added reference and definition
Eur.Phys.J. A29 (2006) 129-131
10.1140/epja/i2005-10312-y
null
hep-ph
null
We provide a renormalization procedure for Phi-derivable approximations in theories coupling different types of fields. We illustrate our approach on a scalar phi^4 theory coupled to fermions via a Yukawa-like interaction. The non-perturbative renormalization amounts to fixing the scalar coupling via a set of nested ...
[ { "created": "Fri, 28 Oct 2005 15:03:09 GMT", "version": "v1" }, { "created": "Wed, 14 Jun 2006 08:10:01 GMT", "version": "v2" } ]
2009-11-11
[ [ "Reinosa", "U.", "" ] ]
We provide a renormalization procedure for Phi-derivable approximations in theories coupling different types of fields. We illustrate our approach on a scalar phi^4 theory coupled to fermions via a Yukawa-like interaction. The non-perturbative renormalization amounts to fixing the scalar coupling via a set of nested Be...
1309.0933
Michal Praszalowicz
Michal Praszalowicz
Emergence and violation of geometrical scaling in pp collisions
8 pages, 5 figures, presented at the Low x Workshop, May 30 - June 4 2013, Rehovot and Eilat, Israel
null
null
null
hep-ph
http://creativecommons.org/licenses/by/3.0/
We argue that geometrical scaling (GS) proposed originally in the context of Deep Inelastic Scattering (DIS) at HERA works also in pp collisions at the LHC energies and in NA61/SHINE experiment. We show that in DIS GS is working up to relatively large Bjorken $x \sim 0.1$. As a consequence negative pion multiplicity ...
[ { "created": "Wed, 4 Sep 2013 07:17:38 GMT", "version": "v1" } ]
2013-09-05
[ [ "Praszalowicz", "Michal", "" ] ]
We argue that geometrical scaling (GS) proposed originally in the context of Deep Inelastic Scattering (DIS) at HERA works also in pp collisions at the LHC energies and in NA61/SHINE experiment. We show that in DIS GS is working up to relatively large Bjorken $x \sim 0.1$. As a consequence negative pion multiplicity $p...
1308.3490
Yonatan Kahn
Yonatan Kahn, Matthew McCullough, Jesse Thaler
Auxiliary Gauge Mediation: A New Route to Mini-Split Supersymmetry
28 pages, 4 figures, 3 tables; v3: minor wording changes and reference added to acknowledge priority of previous B-term calculations. Conclusions unchanged. To be published in JHEP. v2: references added and typos corrected
JHEP 1311:161, 2013
10.1007/JHEP11(2013)161
MIT-CTP 4475
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The discovery of a standard-model-like Higgs at 126 GeV and the absence of squark signals thus far at the LHC both point towards a mini-split spectrum for supersymmetry. Within standard paradigms, it is non-trivial to realize a mini-split spectrum with heavier sfermions but lighter gauginos while simultaneously gener...
[ { "created": "Thu, 15 Aug 2013 20:00:01 GMT", "version": "v1" }, { "created": "Tue, 10 Sep 2013 17:13:44 GMT", "version": "v2" }, { "created": "Sun, 10 Nov 2013 20:19:18 GMT", "version": "v3" } ]
2013-12-03
[ [ "Kahn", "Yonatan", "" ], [ "McCullough", "Matthew", "" ], [ "Thaler", "Jesse", "" ] ]
The discovery of a standard-model-like Higgs at 126 GeV and the absence of squark signals thus far at the LHC both point towards a mini-split spectrum for supersymmetry. Within standard paradigms, it is non-trivial to realize a mini-split spectrum with heavier sfermions but lighter gauginos while simultaneously generat...
1304.7492
Kang Zhao-Feng
Lei Feng and Zhaofeng Kang
Decaying Asymmetric Dark Matter Relaxes the AMS-Fermi Tension
The JCAP version; References and comments added; Improved fitting using MCMC
null
10.1088/1475-7516/2013/10/008
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The first result of AMS-02 confirms the positron fraction excess observed by PAMELA, but the spectrum is somewhat softer than that of PAMELA. In the dark matter (DM) interpretation it brings a tension between AMS-02 and Fermi-LAT, which reported an excess of the electron plus positron flux. In this work we point out ...
[ { "created": "Sun, 28 Apr 2013 18:09:51 GMT", "version": "v1" }, { "created": "Wed, 22 Jan 2014 10:19:15 GMT", "version": "v2" } ]
2015-06-15
[ [ "Feng", "Lei", "" ], [ "Kang", "Zhaofeng", "" ] ]
The first result of AMS-02 confirms the positron fraction excess observed by PAMELA, but the spectrum is somewhat softer than that of PAMELA. In the dark matter (DM) interpretation it brings a tension between AMS-02 and Fermi-LAT, which reported an excess of the electron plus positron flux. In this work we point out th...
hep-ph/9908336
Avtandil Tkabladze
George Japaridze (Clark Atlanta University, Atlanta), Wolf-Dieter Nowak, and Avto Tkabladze (DESY Zeuthen)
Color Octet Contribution to J/psi Photoproduction Asymmetries
10 pages, LaTeX, with 6 eps figs included with epsfig.sty
Phys.Rev.D62:034022,2000
10.1103/PhysRevD.62.034022
DESY 99-110
hep-ph
null
We investigate $J/\psi$ photoproduction asymmetries in the framework of the NRQCD factorization approach. It is shown that the color octet contribution leads to large uncertainties in the predicted asymmetries which rules out the possibility to precisely measure the gluon polarization in the nucleon through this fina...
[ { "created": "Thu, 12 Aug 1999 13:08:01 GMT", "version": "v1" } ]
2011-03-23
[ [ "Japaridze", "George", "", "Clark Atlanta University, Atlanta" ], [ "Nowak", "Wolf-Dieter", "", "DESY Zeuthen" ], [ "Tkabladze", "Avto", "", "DESY Zeuthen" ] ]
We investigate $J/\psi$ photoproduction asymmetries in the framework of the NRQCD factorization approach. It is shown that the color octet contribution leads to large uncertainties in the predicted asymmetries which rules out the possibility to precisely measure the gluon polarization in the nucleon through this final ...
1907.10018
Peihong Gu
Pei-Hong Gu
Minimal Dirac seesaw accompanied by Dirac fermionic dark matter
11 pages, 4 figures. Dirac seesaw mediated by heavy fermion doublets is included. References are added
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The $SU(3)_c^{}\times SU(2)_L^{} \times U(1)_Y^{}$ standard model is extended by a $U(1)_{B-L}^{}$ gauge symmetry with four right-handed neutrinos. Because of their Yukawa couplings to a Higgs singlet for spontaneously breaking the $U(1)_{B-L}^{}$ symmetry, two right-handed neutrinos can form a Dirac fermion to becom...
[ { "created": "Tue, 23 Jul 2019 17:24:06 GMT", "version": "v1" }, { "created": "Thu, 5 Oct 2023 14:53:23 GMT", "version": "v2" } ]
2023-10-06
[ [ "Gu", "Pei-Hong", "" ] ]
The $SU(3)_c^{}\times SU(2)_L^{} \times U(1)_Y^{}$ standard model is extended by a $U(1)_{B-L}^{}$ gauge symmetry with four right-handed neutrinos. Because of their Yukawa couplings to a Higgs singlet for spontaneously breaking the $U(1)_{B-L}^{}$ symmetry, two right-handed neutrinos can form a Dirac fermion to become ...
2104.14542
Vin\'icius Oliveira
Ma\'ira Dutra, Vin\'icius Oliveira, C. A. de S. Pires, Farinaldo S. Queiroz
A model for mixed warm and hot right-handed neutrino dark matter
23 pages, 4 figures. References added, matches published version
null
10.1007/JHEP10(2021)005
null
hep-ph astro-ph.HE hep-th
http://creativecommons.org/licenses/by/4.0/
We discuss a model where a mixed warm and hot keV neutrino dark matter rises naturally. We arrange active and sterile neutrinos in the same $SU(3)_L$ multiplet, with the lightest sterile neutrino being dark matter. The other two heavy sterile neutrinos, through their out-of-equilibrium decay, contribute both to the d...
[ { "created": "Thu, 29 Apr 2021 17:54:07 GMT", "version": "v1" }, { "created": "Tue, 12 Oct 2021 22:29:56 GMT", "version": "v2" } ]
2021-10-14
[ [ "Dutra", "Maíra", "" ], [ "Oliveira", "Vinícius", "" ], [ "Pires", "C. A. de S.", "" ], [ "Queiroz", "Farinaldo S.", "" ] ]
We discuss a model where a mixed warm and hot keV neutrino dark matter rises naturally. We arrange active and sterile neutrinos in the same $SU(3)_L$ multiplet, with the lightest sterile neutrino being dark matter. The other two heavy sterile neutrinos, through their out-of-equilibrium decay, contribute both to the dil...
hep-ph/0004269
Massimo Giovannini
M.Giovannini and M. Shaposhnikov (Institute for Theoretical Physics, Lausanne University)
Primordial magnetic fields from inflation?
32 pages in RevTex style
Phys.Rev. D62 (2000) 103512
10.1103/PhysRevD.62.103512
UNIL-IPT-00-09
hep-ph astro-ph gr-qc hep-th
null
The hot plasma above the electroweak scale contains (hyper) charged scalar particles which are coupled to Abelian gauge fields. Scalars may interact with gravity in a non-conformally invariant way and thus their fluctuations can be amplified during inflation. These fluctuations lead to creation of electric currents a...
[ { "created": "Fri, 28 Apr 2000 15:46:53 GMT", "version": "v1" } ]
2009-10-31
[ [ "Giovannini", "M.", "", "Institute for Theoretical Physics,\n Lausanne University" ], [ "Shaposhnikov", "M.", "", "Institute for Theoretical Physics,\n Lausanne University" ] ]
The hot plasma above the electroweak scale contains (hyper) charged scalar particles which are coupled to Abelian gauge fields. Scalars may interact with gravity in a non-conformally invariant way and thus their fluctuations can be amplified during inflation. These fluctuations lead to creation of electric currents and...
hep-ph/0310217
Paul Frampton
Paul H. Frampton
Status of the Standard Model of Particle Phenomenology
7 pages. Talk at Beyond the Standard Model EURESCO Conference Portoroz, Slovenia. July 2003
null
null
null
hep-ph
null
The standard model is healthy is all respects except for the non-zero neutrino masses which require an extension of the minimal version
[ { "created": "Fri, 17 Oct 2003 17:44:05 GMT", "version": "v1" } ]
2007-05-23
[ [ "Frampton", "Paul H.", "" ] ]
The standard model is healthy is all respects except for the non-zero neutrino masses which require an extension of the minimal version
hep-ph/9805507
Jean Guerrero
A.C. Melissinos
The Spontaneous Breakdown of the Vacuum
6 pages, TeX, figures included in 2 GIF files
null
null
UR-1520
hep-ph
null
We discuss the spontaneous breakdown of the vacuum by a strong electromagnetic field as observed in SLAC experiment E-144. We show that the data follow the Schwinger non-perturbative result obtained for a static field.
[ { "created": "Fri, 29 May 1998 14:20:38 GMT", "version": "v1" } ]
2009-09-25
[ [ "Melissinos", "A. C.", "" ] ]
We discuss the spontaneous breakdown of the vacuum by a strong electromagnetic field as observed in SLAC experiment E-144. We show that the data follow the Schwinger non-perturbative result obtained for a static field.
hep-ph/0211301
Yan QiShu
Qi-Shu Yan and Dong-Sheng Du
The renormalization of the effective Lagrangian with spontaneous symmetry breaking: the SU(2) case
ReVTeX, 12 figures, 22 pages, some bugs are kicked off from programs, numerical analysis is renewn
Phys.Rev. D69 (2004) 085006
10.1103/PhysRevD.69.085006
null
hep-ph
null
We study the renormalization of the nonlinear effective SU(2) Lagrangian up to $O(p^4)$ with spontaneous symmetry breaking. The Stueckelberg transformation, the background field gauge, the Schwinger proper time and heat kernel method, and the covariant short distance expansion technology, guarantee the gauge covarian...
[ { "created": "Tue, 19 Nov 2002 14:09:40 GMT", "version": "v1" }, { "created": "Mon, 16 Dec 2002 16:19:58 GMT", "version": "v2" } ]
2009-11-07
[ [ "Yan", "Qi-Shu", "" ], [ "Du", "Dong-Sheng", "" ] ]
We study the renormalization of the nonlinear effective SU(2) Lagrangian up to $O(p^4)$ with spontaneous symmetry breaking. The Stueckelberg transformation, the background field gauge, the Schwinger proper time and heat kernel method, and the covariant short distance expansion technology, guarantee the gauge covariance...
hep-ph/9707527
George W. S. Hou
George Wei-Shu Hou
Perspective on FCNC: From Rare to Well-done
6 pages, latex (uses sprocl.sty), no figures [NOTE ADDED: Talk presented at FCNC97 Workshop, Santa Monica, USA, February 19--21, 1997]
null
null
NTUTH-97-03
hep-ph
null
We briefly review the phenomenology of FCNC, from the very rare $\mu/K$, through the medium $b$, to the "pseudo-well-done" case of $b'$, extending to the possibility of large tree level FCNC at weak scale.
[ { "created": "Thu, 31 Jul 1997 01:37:14 GMT", "version": "v1" }, { "created": "Sat, 2 Aug 1997 06:04:10 GMT", "version": "v2" } ]
2008-02-03
[ [ "Hou", "George Wei-Shu", "" ] ]
We briefly review the phenomenology of FCNC, from the very rare $\mu/K$, through the medium $b$, to the "pseudo-well-done" case of $b'$, extending to the possibility of large tree level FCNC at weak scale.
hep-ph/0306131
Mauricio Bellini
Mauricio Bellini (CONICET & Mar del Plata University)
Scalar field perturbations in fresh inflation
4pages, 3 figures
Nuovo Cim. B118 (2003) 417-423
10.1393/ncb/i2003-10022-7
null
hep-ph astro-ph gr-qc
null
The model of fresh inflation with increasing cosmological parameter provides sufficient e-folds to solve the flatness/horizon problem and the density fluctuations agree with experimental values. In this model the temperature increases during inflation and reach its maximum value when inflation ends (where the number ...
[ { "created": "Sun, 15 Jun 2003 23:39:20 GMT", "version": "v1" } ]
2009-11-10
[ [ "Bellini", "Mauricio", "", "CONICET & Mar del Plata University" ] ]
The model of fresh inflation with increasing cosmological parameter provides sufficient e-folds to solve the flatness/horizon problem and the density fluctuations agree with experimental values. In this model the temperature increases during inflation and reach its maximum value when inflation ends (where the number of...
1407.0823
Stefano Frixione
S. Frixione, V. Hirschi, D. Pagani, H.-S. Shao, M. Zaro
Weak corrections to Higgs hadroproduction in association with a top-quark pair
29 pages, 38 figures
null
10.1007/JHEP09(2014)065
CERN-PH-TH-2014-123, CP3-14-49
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present the calculation of the next-to-leading contribution of order $\alpha_S^2\alpha^2$ to the production of a Standard Model Higgs boson in association with a top-quark pair at hadron colliders. All effects of weak and QCD origin are included, whereas those of QED origin are ignored. We work in the MadGraph5_aM...
[ { "created": "Thu, 3 Jul 2014 09:08:04 GMT", "version": "v1" } ]
2015-06-22
[ [ "Frixione", "S.", "" ], [ "Hirschi", "V.", "" ], [ "Pagani", "D.", "" ], [ "Shao", "H. -S.", "" ], [ "Zaro", "M.", "" ] ]
We present the calculation of the next-to-leading contribution of order $\alpha_S^2\alpha^2$ to the production of a Standard Model Higgs boson in association with a top-quark pair at hadron colliders. All effects of weak and QCD origin are included, whereas those of QED origin are ignored. We work in the MadGraph5_aMC@...
hep-ph/9505302
null
Alex Pomarol and Savas Dimopoulos (CERN)
Superfield Derivation of the Low-Energy Effective Theory of Softly Broken Supersymmetry
22 pages (Latex), 4 figures (compressed+uuencoded)
Nucl.Phys. B453 (1995) 83-99
10.1016/0550-3213(95)00422-O
CERN-TH/95-114
hep-ph hep-th
null
We analyze the soft supersymmetry breaking parameters obtained in grand unified theories after integrating out the heavy GUT-states. The superfield formalism greatly simplifies the calculations and allows us to derive the low-energy effective theory in the general case of non-universal and non-proportional soft terms...
[ { "created": "Sat, 13 May 1995 19:44:48 GMT", "version": "v1" } ]
2009-10-28
[ [ "Pomarol", "Alex", "", "CERN" ], [ "Dimopoulos", "Savas", "", "CERN" ] ]
We analyze the soft supersymmetry breaking parameters obtained in grand unified theories after integrating out the heavy GUT-states. The superfield formalism greatly simplifies the calculations and allows us to derive the low-energy effective theory in the general case of non-universal and non-proportional soft terms b...
hep-ph/9803312
John F. Donoghue
John F. Donoghue and Barry R. Holstein
Improving the convergence of SU(3) baryon chiral perturbation theory
12 pages Latex
null
null
null
hep-ph
null
Baryon chiral perturbation theory as conventionally applied using dimensional regularization has a well-known problem with the convergence of the SU(3) chiral expansion. One can reformulate the theory equally rigorously using a momentum-space cutoff and we show that the convergence is thereby greatly improved for rea...
[ { "created": "Wed, 11 Mar 1998 17:42:28 GMT", "version": "v1" } ]
2007-05-23
[ [ "Donoghue", "John F.", "" ], [ "Holstein", "Barry R.", "" ] ]
Baryon chiral perturbation theory as conventionally applied using dimensional regularization has a well-known problem with the convergence of the SU(3) chiral expansion. One can reformulate the theory equally rigorously using a momentum-space cutoff and we show that the convergence is thereby greatly improved for reaso...
hep-ph/9908209
Nikolaos Tetradis
N. Tetradis
The World as a Dual Josephson Junction
10 pages, 1 figure, minor clarifications added
Phys.Lett. B479 (2000) 265-272
10.1016/S0370-2693(00)00327-0
SNS-PH/1999-11
hep-ph hep-th
null
We examine some of the implications of the field-theoretical mechanism for the localization of gauge fields on hypersurfaces in higher-dimensional bulk space-time. This mechanism exploits the analogy between confinement and dual superconductivity. In the simplest case of a photon localized on a (2+1)-dimensional surf...
[ { "created": "Sun, 1 Aug 1999 10:36:09 GMT", "version": "v1" }, { "created": "Thu, 24 Feb 2000 11:09:51 GMT", "version": "v2" } ]
2009-10-31
[ [ "Tetradis", "N.", "" ] ]
We examine some of the implications of the field-theoretical mechanism for the localization of gauge fields on hypersurfaces in higher-dimensional bulk space-time. This mechanism exploits the analogy between confinement and dual superconductivity. In the simplest case of a photon localized on a (2+1)-dimensional surfac...
1403.8051
Martin S. Sloth
Martin S. Sloth
Chaotic inflation with curvaton induced running
V2: Extended version to appear in PRD
Phys. Rev. D 90, 063511 (2014)
10.1103/PhysRevD.90.063511
null
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
While dust contamination now appears as a likely explanation of the apparent tension between the recent BICEP2 data and the Planck data, we will here explore the consequences of a large running in the spectral index as suggested by the BICEP2 collaboration as an alternative explanation of the apparent tension, but wh...
[ { "created": "Mon, 31 Mar 2014 15:38:33 GMT", "version": "v1" }, { "created": "Mon, 8 Sep 2014 20:02:07 GMT", "version": "v2" } ]
2014-09-17
[ [ "Sloth", "Martin S.", "" ] ]
While dust contamination now appears as a likely explanation of the apparent tension between the recent BICEP2 data and the Planck data, we will here explore the consequences of a large running in the spectral index as suggested by the BICEP2 collaboration as an alternative explanation of the apparent tension, but whic...
2405.10111
Jean-Pierre Leroy
A. Le Yaouanc, J.-P. Leroy and P.Roudeau
The $a_1$ factorisation coefficient in ${\overline{B}^0} \to D^{(*)+}M^{-}$ and ${\overline{B}^0} \to D^{(*)+}D_s^{(*)-}$ decays: measurements versus theory
40 pages
null
null
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
Using recent measurements of exclusive B-meson decays we extract the $a_1$ factorization parameter in ${\overline{B}^{0}_{d}} \to D^{(*)^+} K^-/\pi^-$ decay channels. { The values obtained in the four channels are very similar, in agreement with the theoretical expectations obtained in the $m_Q \to \infty$ limit, but...
[ { "created": "Thu, 16 May 2024 14:03:25 GMT", "version": "v1" } ]
2024-05-17
[ [ "Yaouanc", "A. Le", "" ], [ "Leroy", "J. -P.", "" ], [ "Roudeau", "P.", "" ] ]
Using recent measurements of exclusive B-meson decays we extract the $a_1$ factorization parameter in ${\overline{B}^{0}_{d}} \to D^{(*)^+} K^-/\pi^-$ decay channels. { The values obtained in the four channels are very similar, in agreement with the theoretical expectations obtained in the $m_Q \to \infty$ limit, but t...
hep-ph/9706245
null
F. De Fazio
Beauty hadron lifetime ratios and the problem of $\tau(\Lambda_b)$
Talk presented at the Fifth Topical Seminar on The Irresistible Rise of the Standard Model, San Miniato, Italy, April 21-25, 1997. Latex, 4 pages, 1 figure
Nucl.Phys.Proc.Suppl.65:185-188,1998
10.1016/S0920-5632(97)00998-5
BARI-TH/96-271
hep-ph
null
We describe a theoretical approach to compute inclusive widths of heavy hadrons, based on a systematic expansion in the inverse powers of the heavy quark mass. The method reproduces quite well the experimental ratios of $B$ mesons lifetimes. As for $\tau(\Lambda_b)/\tau(B_d)$, we present a QCD sum rule calculation of...
[ { "created": "Wed, 4 Jun 1997 09:55:14 GMT", "version": "v1" } ]
2011-01-27
[ [ "De Fazio", "F.", "" ] ]
We describe a theoretical approach to compute inclusive widths of heavy hadrons, based on a systematic expansion in the inverse powers of the heavy quark mass. The method reproduces quite well the experimental ratios of $B$ mesons lifetimes. As for $\tau(\Lambda_b)/\tau(B_d)$, we present a QCD sum rule calculation of t...
hep-ph/9505217
Mary Louise Stong
M. L. Stong
Spectra of baryons containing two heavy quarks
7 pages Latex plus 3 Postscript figures. The complete paper, including figures, is also available via anonymous ftp at ftp://ttpux2.physik.uni-karlsruhe.de/ttp95-02/ttp95-02.ps , or via www at http://ttpux2.physik.uni-karlsruhe.de/cgi-bin/preprints/
null
null
TTP95-02
hep-ph
null
The spectra of baryons containing two heavy quarks test the form of the $QQ$ potential through the spin-averaged masses and hyperfine splittings. The mass splittings in these spectra are calculated in a nonrelativistic potential model and the effects of varying the potential studied. The simple description in terms o...
[ { "created": "Wed, 3 May 1995 08:49:08 GMT", "version": "v1" } ]
2007-05-23
[ [ "Stong", "M. L.", "" ] ]
The spectra of baryons containing two heavy quarks test the form of the $QQ$ potential through the spin-averaged masses and hyperfine splittings. The mass splittings in these spectra are calculated in a nonrelativistic potential model and the effects of varying the potential studied. The simple description in terms of ...