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0902.2749
Dmitri Kharzeev
D. E. Kharzeev
Hot and dense matter: from RHIC to LHC: Theoretical overview
10 pages, 7 figures; invited plenary talk at the PANIC'08 Conference, Eilat, Israel, 9-14 November 2008
Nucl.Phys.A827:118c-127c,2009
10.1016/j.nuclphysa.2009.05.026
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Relativistic heavy ion physics studies the phenomena that occur when a very large (in units of QCD scale $\Lambda_{\rm QCD}$) amount of energy is deposited into a large (in units of $\Lambda^{-3}_{\rm QCD}$) volume, creating an extended in space and time domain with an energy density that is large in units of $\Lambd...
[ { "created": "Mon, 16 Feb 2009 17:55:59 GMT", "version": "v1" } ]
2010-02-25
[ [ "Kharzeev", "D. E.", "" ] ]
Relativistic heavy ion physics studies the phenomena that occur when a very large (in units of QCD scale $\Lambda_{\rm QCD}$) amount of energy is deposited into a large (in units of $\Lambda^{-3}_{\rm QCD}$) volume, creating an extended in space and time domain with an energy density that is large in units of $\Lambda^...
1309.2430
Norma Susana Mankoc Borstnik
N.S. Mankoc Borstnik, H.B.F. Nielsen, M.Y. Khlopov and D. Lukman
Proceedings to the 14th International Workshop "What Comes Beyond the Standard Models", July 11-21, 2011, Bled, Slovenia
One article reference fixed (transposed digits in arXiv number); "Bled Workshops in Physics", Vol. 12, No.2, DMFA Zaloznistvo, Ljubljana, December 2011
null
null
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The contribution contains the preface to the Proceedings to the 14th Workshop What Comes Beyond the Standard Models, Bled, July 11 - 21, 2011, published in Bled workshops in physics, Vol.12, No. 2, DMFA-Zaloznistvo, Ljubljana, Dec. 2011, and links to the published contributions.
[ { "created": "Tue, 10 Sep 2013 09:37:11 GMT", "version": "v1" }, { "created": "Tue, 6 May 2014 07:12:57 GMT", "version": "v2" } ]
2014-05-07
[ [ "Borstnik", "N. S. Mankoc", "" ], [ "Nielsen", "H. B. F.", "" ], [ "Khlopov", "M. Y.", "" ], [ "Lukman", "D.", "" ] ]
The contribution contains the preface to the Proceedings to the 14th Workshop What Comes Beyond the Standard Models, Bled, July 11 - 21, 2011, published in Bled workshops in physics, Vol.12, No. 2, DMFA-Zaloznistvo, Ljubljana, Dec. 2011, and links to the published contributions.
hep-ph/9604219
null
P. Bicudo and J. Ribeiro (Centro de Fisica das Interacoes fundamentais, Instituto Superior Tecnico, Lisboa)
The solution to the strong CP problem at the BCS level of chiral rotations
13 pages in latex revtex, 2 Postscript figures
null
null
FISIST/2-96/CFIF
hep-ph
null
We briefly review the cases of forced and spontaneous chiral symmetry breaking. In particular the chiral condensate of q anti-q pairs is parametrized with two angles, phi which measures the chiral condensation, and theta which measures the chiral rotation. The strong CP problem arises when it is assumed that the curr...
[ { "created": "Sat, 2 Mar 1996 16:03:50 GMT", "version": "v1" } ]
2007-05-23
[ [ "Bicudo", "P.", "", "Centro de Fisica das Interacoes\n fundamentais, Instituto Superior Tecnico, Lisboa" ], [ "Ribeiro", "J.", "", "Centro de Fisica das Interacoes\n fundamentais, Instituto Superior Tecnico, Lisboa" ] ]
We briefly review the cases of forced and spontaneous chiral symmetry breaking. In particular the chiral condensate of q anti-q pairs is parametrized with two angles, phi which measures the chiral condensation, and theta which measures the chiral rotation. The strong CP problem arises when it is assumed that the curren...
hep-ph/9805451
Zhu Guo-Hai
Dongsheng Du, Yadong Yang and Guohuai Zhu
Further Analysis of $B \to \eta^{\prime} K(K^*),\eta K(K^*)$ Processes
18 pages, latex, 6 ps figures
Phys.Rev. D59 (1999) 014007
10.1103/PhysRevD.59.014007
BIHEP-Th/98-5
hep-ph
null
Combining three mechanisms, we reanalysis processes of $B \to \eta^{\prime} K(K^*),\eta K(K^*)$ and calculate their branching ratios. The results are compared with other mechanisms in the literature. The striking feature of the gluon fusion mechanism is emphasized and its experimental test is discussed.
[ { "created": "Tue, 26 May 1998 00:27:43 GMT", "version": "v1" } ]
2009-10-31
[ [ "Du", "Dongsheng", "" ], [ "Yang", "Yadong", "" ], [ "Zhu", "Guohuai", "" ] ]
Combining three mechanisms, we reanalysis processes of $B \to \eta^{\prime} K(K^*),\eta K(K^*)$ and calculate their branching ratios. The results are compared with other mechanisms in the literature. The striking feature of the gluon fusion mechanism is emphasized and its experimental test is discussed.
1012.4356
Carlo Giunti Dr.
Carlo Giunti, Marco Laveder
Short-BaseLine Electron Neutrino Disappearance
3 pages, proceedings of NOW 2010, 4-11 September 2010, Conca Specchiulla (Otranto, Lecce, Italy)
null
10.1016/j.nuclphysbps.2011.04.098
null
hep-ph astro-ph.CO hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyzed the electron neutrino data of the Gallium radioactive source experiments and the electron antineutrino data of the reactor Bugey and Chooz experiments in terms of neutrino oscillations. We found a hint of a CPT-violating asymmetry of the effective neutrino and antineutrino mixing angles.
[ { "created": "Mon, 20 Dec 2010 15:27:35 GMT", "version": "v1" } ]
2015-05-20
[ [ "Giunti", "Carlo", "" ], [ "Laveder", "Marco", "" ] ]
We analyzed the electron neutrino data of the Gallium radioactive source experiments and the electron antineutrino data of the reactor Bugey and Chooz experiments in terms of neutrino oscillations. We found a hint of a CPT-violating asymmetry of the effective neutrino and antineutrino mixing angles.
hep-ph/9403356
Rogerio Rosenfeld
Rogerio Rosenfeld
An alternative model for the electroweak symmetry breaking sector and its signature in future e-gamma colliders
LaTex , 14 pages, 5 figures not included but available as postscript files upon request, NUB-3086/94-Th
Phys. Rev. D 50, 4283 (1994)
10.1103/PhysRevD.50.4283
null
hep-ph
null
We perform a preliminary study of the deviations from the Standard Model prediction for the cross section for the process $e \gamma \rightarrow \nu_e W \gamma$. We work in the context of a higgsless chiral lagrangian model that includes an extra vector resonance $V$ and an anomalous $\gamma W V$ coupling. We find tha...
[ { "created": "Thu, 24 Mar 1994 19:06:10 GMT", "version": "v1" } ]
2013-11-13
[ [ "Rosenfeld", "Rogerio", "" ] ]
We perform a preliminary study of the deviations from the Standard Model prediction for the cross section for the process $e \gamma \rightarrow \nu_e W \gamma$. We work in the context of a higgsless chiral lagrangian model that includes an extra vector resonance $V$ and an anomalous $\gamma W V$ coupling. We find that ...
hep-ph/9812419
Fabrizio Gabbiani
Fabrizio Gabbiani
Unitarity corrections to K+ -> pi+ gamma l+l-
18 pages, 13 eps figures. LaTeX, uses epsfig.sty. Version accepted for publication on Phys. Rev. D. Misprints corrected
Phys.Rev.D59:094022,1999
10.1103/PhysRevD.59.094022
null
hep-ph
null
We perform a chiral one-loop calculation of the unitarity corrections to the processes K+ -> pi+ gamma l+l- up to O(E^6), taking into account pi+pi- intermediate states. Branching ratios and differential branching ratios are computed and presented to demonstrate the importance of the above corrections.
[ { "created": "Thu, 17 Dec 1998 20:05:32 GMT", "version": "v1" }, { "created": "Fri, 5 Mar 1999 15:08:59 GMT", "version": "v2" } ]
2011-08-17
[ [ "Gabbiani", "Fabrizio", "" ] ]
We perform a chiral one-loop calculation of the unitarity corrections to the processes K+ -> pi+ gamma l+l- up to O(E^6), taking into account pi+pi- intermediate states. Branching ratios and differential branching ratios are computed and presented to demonstrate the importance of the above corrections.
2109.11586
Guillermo Palacio
Amalia Betancur, Andr\'es Castillo, Guillermo Palacio and Juan Suarez
Multicomponent scalar dark matter at high-intensity proton beam experiments
17 pages, 13 figures, version accepted for publication in Journal of Physics G
null
10.1088/1361-6471/ac65a6
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study a scalar dark matter (DM) model with two DM species coupled to the Standard Model (SM) particles via a sub-GeV dark photon. In this model, we find that DM conversion occurs through the dark photon and it plays a fundamental role in setting the observed relic abundance. Furthermore, the two DM candidates can ...
[ { "created": "Thu, 23 Sep 2021 18:40:12 GMT", "version": "v1" }, { "created": "Tue, 12 Apr 2022 23:36:39 GMT", "version": "v2" } ]
2022-04-14
[ [ "Betancur", "Amalia", "" ], [ "Castillo", "Andrés", "" ], [ "Palacio", "Guillermo", "" ], [ "Suarez", "Juan", "" ] ]
We study a scalar dark matter (DM) model with two DM species coupled to the Standard Model (SM) particles via a sub-GeV dark photon. In this model, we find that DM conversion occurs through the dark photon and it plays a fundamental role in setting the observed relic abundance. Furthermore, the two DM candidates can be...
1605.05098
C. Q. Geng
Chao-Qiang Geng, Da Huang, Chun-Hao Lee and Qing Wang
Direct Detection of Exothermic Dark Matter with Light Mediator
29 pages, 8 figures
JCAP 08 (2016) 009
10.1088/1475-7516/2016/08/009
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the dark matter (DM) direct detection for the models with the effects of the isospin-violating couplings, exothermic scatterings, and/or the lightness of the mediator, proposed to relax the tension between the CDMS-Si signals and null experiments. In the light of the new updates of the LUX and CDMSlite data,...
[ { "created": "Tue, 17 May 2016 10:39:17 GMT", "version": "v1" } ]
2016-08-08
[ [ "Geng", "Chao-Qiang", "" ], [ "Huang", "Da", "" ], [ "Lee", "Chun-Hao", "" ], [ "Wang", "Qing", "" ] ]
We study the dark matter (DM) direct detection for the models with the effects of the isospin-violating couplings, exothermic scatterings, and/or the lightness of the mediator, proposed to relax the tension between the CDMS-Si signals and null experiments. In the light of the new updates of the LUX and CDMSlite data, w...
2010.03568
Davide Racco
Anson Hook, Gustavo Marques-Tavares, Davide Racco
Causal gravitational waves as a probe of free streaming particles and the expansion of the Universe
26 pages, 7 figures. v2: minor changes, matches the version published in JHEP
null
10.1007/JHEP02(2021)117
null
hep-ph astro-ph.CO gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The low frequency part of the gravitational wave spectrum generated by local physics, such as a phase transition or parametric resonance, is largely fixed by causality, offering a clean window into the early Universe. In this work, this low frequency end of the spectrum is analyzed with an emphasis on a physical unde...
[ { "created": "Wed, 7 Oct 2020 18:00:01 GMT", "version": "v1" }, { "created": "Sun, 17 Jan 2021 14:35:31 GMT", "version": "v2" } ]
2021-03-17
[ [ "Hook", "Anson", "" ], [ "Marques-Tavares", "Gustavo", "" ], [ "Racco", "Davide", "" ] ]
The low frequency part of the gravitational wave spectrum generated by local physics, such as a phase transition or parametric resonance, is largely fixed by causality, offering a clean window into the early Universe. In this work, this low frequency end of the spectrum is analyzed with an emphasis on a physical unders...
1805.08005
Venkata Suryanarayana Mummidi
V Suryanarayana Mummidi, Vishnu P. K. and Ketan M. Patel
Effects of heavy neutrinos on vacuum stability in two-Higgs-doublet model with GUT scale supersymmetry
34 pages, 7 figures, 1 table; minor changes, published version
JHEP 1808 (2018) 134
10.1007/JHEP08(2018)134
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We analyse the implications of right-handed neutrinos on the stability of the electroweak vacuum in two-Higgs-doublet models with supersymmetry at high scale. It is assumed that supersymmetry is broken at scale $M_S = 2 \times 10^{16}$ GeV and effective theory below $M_S$ is two-Higgs-doublet model of type II with th...
[ { "created": "Mon, 21 May 2018 12:04:40 GMT", "version": "v1" }, { "created": "Wed, 29 Aug 2018 12:18:41 GMT", "version": "v2" } ]
2018-08-30
[ [ "Mummidi", "V Suryanarayana", "" ], [ "K.", "Vishnu P.", "" ], [ "Patel", "Ketan M.", "" ] ]
We analyse the implications of right-handed neutrinos on the stability of the electroweak vacuum in two-Higgs-doublet models with supersymmetry at high scale. It is assumed that supersymmetry is broken at scale $M_S = 2 \times 10^{16}$ GeV and effective theory below $M_S$ is two-Higgs-doublet model of type II with thre...
hep-ph/9301249
Sumantra Chakravarty
Sumantra Chakravarty, Sun Myong Kim and Pyungwon Ko
Is Upsilon(3S) a pure S-wave?
18 pages (Latex), 2 figures (not included) available on request from Sun Myong Kim. UMN-TH-1122/92
Phys.Rev.D48:1212-1219,1993
10.1103/PhysRevD.48.1212
null
hep-ph
null
Assuming the QCD multipole expansion is applicable to hadronic transitions of Upsilon(3S) into lower level bottomonia, we consider the possibility that Upsilon(3S) has a D-wave component. This assumption leads to a natural explanation of the pi-pi spectrum in Upsilon(3S) -> Upsilon(1S) pi-pi. Consequences of this ass...
[ { "created": "Tue, 19 Jan 1993 20:50:04 GMT", "version": "v1" } ]
2011-01-27
[ [ "Chakravarty", "Sumantra", "" ], [ "Kim", "Sun Myong", "" ], [ "Ko", "Pyungwon", "" ] ]
Assuming the QCD multipole expansion is applicable to hadronic transitions of Upsilon(3S) into lower level bottomonia, we consider the possibility that Upsilon(3S) has a D-wave component. This assumption leads to a natural explanation of the pi-pi spectrum in Upsilon(3S) -> Upsilon(1S) pi-pi. Consequences of this assum...
0705.0329
Claudia Simolo
M. Baldicchi, A. V. Nesterenko, G. M. Prosperi, D. V. Shirkov and C. Simolo
Bound state approach to the QCD coupling at low energy scales
Revised version, to appear on Physical Review Letters. 7 pages, 2 figures, Revtex
Phys.Rev.Lett.99:242001,2007
10.1103/PhysRevLett.99.242001
null
hep-ph
null
We exploit theoretical results on the meson spectrum within the framework of a Bethe-Salpeter (BS) formalism adjusted for QCD, in order to extract an ``experimental'' coupling \alpha_s^{exp}(Q^2) below 1 GeV by comparison with the data. Our results for \alpha_s^{exp}(Q^2) exhibit a good agreement with the infrared sa...
[ { "created": "Wed, 2 May 2007 16:55:46 GMT", "version": "v1" }, { "created": "Thu, 22 Nov 2007 13:24:43 GMT", "version": "v2" } ]
2008-11-26
[ [ "Baldicchi", "M.", "" ], [ "Nesterenko", "A. V.", "" ], [ "Prosperi", "G. M.", "" ], [ "Shirkov", "D. V.", "" ], [ "Simolo", "C.", "" ] ]
We exploit theoretical results on the meson spectrum within the framework of a Bethe-Salpeter (BS) formalism adjusted for QCD, in order to extract an ``experimental'' coupling \alpha_s^{exp}(Q^2) below 1 GeV by comparison with the data. Our results for \alpha_s^{exp}(Q^2) exhibit a good agreement with the infrared safe...
hep-ph/0105212
Walter Grimus
W. Grimus, L. Lavoura
Softly broken lepton numbers and maximal neutrino mixing
Latex, 15 pages; two references added and minor changes in the text; final version accepted for publication in JHEP
JHEP 0107:045,2001
10.1088/1126-6708/2001/07/045
UWThPh-2001-21
hep-ph
null
We consider lepton mixing in an extension of the Standard Model with three right-handed neutrino singlets. We require that the three lepton numbers L_e, L_\mu, and L_\tau be separately conserved in the Yukawa couplings, and we assume that they are softly broken only by the Majorana mass matrix M_R of the neutrino sin...
[ { "created": "Mon, 21 May 2001 15:41:01 GMT", "version": "v1" }, { "created": "Tue, 14 Aug 2001 10:24:08 GMT", "version": "v2" } ]
2010-02-03
[ [ "Grimus", "W.", "" ], [ "Lavoura", "L.", "" ] ]
We consider lepton mixing in an extension of the Standard Model with three right-handed neutrino singlets. We require that the three lepton numbers L_e, L_\mu, and L_\tau be separately conserved in the Yukawa couplings, and we assume that they are softly broken only by the Majorana mass matrix M_R of the neutrino singl...
hep-ph/0302169
Peter Kroll
P. Kroll (Wuppertal Univ.)
A modern view of wide-angle exclusive scattering
10 pages, 6 figures (using LATEX with ws-procs9x6.cls), talk presented at the Nstar2002 workshop on the physics of excited nucleons, Pittsburgh, October 2002
null
10.1142/9789812705174_0013
null
hep-ph
null
The basic theoretical ideas of the handbag mechanism for wide-angle exclusive scattering reactions are discussed and, with regard to the present experimental program carried out at JLab, its application to Compton scattering is reviewed in some detail. Results for other wide-angle reactions such as two-photon annihil...
[ { "created": "Wed, 19 Feb 2003 09:55:35 GMT", "version": "v1" } ]
2017-08-23
[ [ "Kroll", "P.", "", "Wuppertal Univ." ] ]
The basic theoretical ideas of the handbag mechanism for wide-angle exclusive scattering reactions are discussed and, with regard to the present experimental program carried out at JLab, its application to Compton scattering is reviewed in some detail. Results for other wide-angle reactions such as two-photon annihilat...
hep-ph/0001262
Edward Sarkisyan
Edward K. G. Sarkisyan (Tel Aviv University)
Description of local multiplicity fluctuations and genuine multiparticle correlations
15 pages, 2 ps figures
Phys.Lett. B477 (2000) 1-12
10.1016/S0370-2693(00)00223-9
TAUP 2619-2000
hep-ph
null
Various parametrizations of the multiplicity distribution are studied using the recently published large statistics OPAL results on multidimensional local fluctuations and genuine correlations in e+e- -> Z -> hadrons. The measured normalized factorial and cumulant moments are compared to the predictions of the negati...
[ { "created": "Tue, 25 Jan 2000 19:15:15 GMT", "version": "v1" } ]
2009-10-31
[ [ "Sarkisyan", "Edward K. G.", "", "Tel Aviv University" ] ]
Various parametrizations of the multiplicity distribution are studied using the recently published large statistics OPAL results on multidimensional local fluctuations and genuine correlations in e+e- -> Z -> hadrons. The measured normalized factorial and cumulant moments are compared to the predictions of the negative...
1503.03836
Doojin Kim
Kaustubh Agashe, Roberto Franceschini, Doojin Kim, Kyle Wardlow
Mass Measurement Using Energy Spectra in Three-body Decays
42 pages, 12 figures, Journal-submitted version
JHEP 1605 (2016) 138
null
UMD-PP-015-004, CERN-PH-TH-2015-033
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In previous works we have demonstrated how the energy distribution of massless decay products in two body decays can be used to measure the mass of decaying particles. In this work we show how such results can be generalized to the case of multi-body decays. The key ideas that allow us to deal with multi-body final s...
[ { "created": "Thu, 12 Mar 2015 18:20:11 GMT", "version": "v1" }, { "created": "Thu, 9 Jun 2016 02:06:15 GMT", "version": "v2" } ]
2016-06-10
[ [ "Agashe", "Kaustubh", "" ], [ "Franceschini", "Roberto", "" ], [ "Kim", "Doojin", "" ], [ "Wardlow", "Kyle", "" ] ]
In previous works we have demonstrated how the energy distribution of massless decay products in two body decays can be used to measure the mass of decaying particles. In this work we show how such results can be generalized to the case of multi-body decays. The key ideas that allow us to deal with multi-body final sta...
2212.13193
Clay C\'ordova
Clay Cordova, Seth Koren
Higher Flavor Symmetries in the Standard Model
12 pages, 2 figures, 10 tables
null
null
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We initiate the study of the generalized global flavor symmetries of the Standard Model. The presence of nonzero triangle diagrams between the $U(3)^5$ flavor currents and the $U(1)_Y$ hypercharge current intertwines them in the form of a higher-group which mixes the zero-form flavor symmetries with the one-form magn...
[ { "created": "Mon, 26 Dec 2022 15:37:07 GMT", "version": "v1" } ]
2022-12-27
[ [ "Cordova", "Clay", "" ], [ "Koren", "Seth", "" ] ]
We initiate the study of the generalized global flavor symmetries of the Standard Model. The presence of nonzero triangle diagrams between the $U(3)^5$ flavor currents and the $U(1)_Y$ hypercharge current intertwines them in the form of a higher-group which mixes the zero-form flavor symmetries with the one-form magnet...
1912.06532
Alexey Vladimirov
Ignazio Scimemi and Alexey Vladimirov
Non-perturbative structure of semi-inclusive deep-inelastic and Drell-Yan scattering at small transverse momentum
62 pages with 24 figures, 9 tables, and 107 references. ver2: multiple small updates, matching the journal version
null
10.1007/JHEP06(2020)137
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider semi-inclusive deep inelastic scattering (SIDIS) and Drell-Yan events within transverse momentum dependent (TMD) factorization. Based on the simultaneous fit of multiple data points, we extract the unpolarized TMD distributions and the non-perturbative evolution kernel. The high quality of the fit confirm...
[ { "created": "Fri, 13 Dec 2019 14:36:11 GMT", "version": "v1" }, { "created": "Mon, 22 Jun 2020 08:01:41 GMT", "version": "v2" } ]
2020-07-15
[ [ "Scimemi", "Ignazio", "" ], [ "Vladimirov", "Alexey", "" ] ]
We consider semi-inclusive deep inelastic scattering (SIDIS) and Drell-Yan events within transverse momentum dependent (TMD) factorization. Based on the simultaneous fit of multiple data points, we extract the unpolarized TMD distributions and the non-perturbative evolution kernel. The high quality of the fit confirms ...
2309.09695
Matthias Lutz F.M.
Tobias Isken, Xiao-Yu Guo, Yonggoo Heo, Csaba L. Korpa and Matthias F.M. Lutz
Triangle and box diagrams in coupled-channel systems from the chiral Lagrangian
58 pages, 7 figures and 2 tables, minor corrections and extensions
null
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We perform an analysis of triangle- and box-loop contributions to the generalized potential in the scattering of Goldstone bosons off the J^P= 0^- and 1^- charmed mesons. Particular emphasis is put on the use of on-shell mass parameters in such contributions in terms of a renormalization scheme that ensures the absen...
[ { "created": "Mon, 18 Sep 2023 12:00:57 GMT", "version": "v1" }, { "created": "Thu, 21 Sep 2023 06:55:01 GMT", "version": "v2" }, { "created": "Tue, 28 Nov 2023 16:17:15 GMT", "version": "v3" } ]
2023-11-29
[ [ "Isken", "Tobias", "" ], [ "Guo", "Xiao-Yu", "" ], [ "Heo", "Yonggoo", "" ], [ "Korpa", "Csaba L.", "" ], [ "Lutz", "Matthias F. M.", "" ] ]
We perform an analysis of triangle- and box-loop contributions to the generalized potential in the scattering of Goldstone bosons off the J^P= 0^- and 1^- charmed mesons. Particular emphasis is put on the use of on-shell mass parameters in such contributions in terms of a renormalization scheme that ensures the absence...
hep-ph/9806434
Eugene Levin
E.Levin (Tel Aviv U.)
Evolution equations for high parton density QCD
13 pages in latex.file, 5 figs in eps files
null
null
TAUP 2506-98
hep-ph
null
This talk is given at "Continious Advances in QCD", Minnesota, April 16-19,1998. It is a brief report on our results in high parton density QCD. The main goal of this talk is to discuss the new evolution equation which was obtained and solved by A.Ayala, M. Ducati and E.Levin and by E. Gotsman, E. Levin and U. Maor, ...
[ { "created": "Mon, 22 Jun 1998 10:21:18 GMT", "version": "v1" } ]
2007-05-23
[ [ "Levin", "E.", "", "Tel Aviv U." ] ]
This talk is given at "Continious Advances in QCD", Minnesota, April 16-19,1998. It is a brief report on our results in high parton density QCD. The main goal of this talk is to discuss the new evolution equation which was obtained and solved by A.Ayala, M. Ducati and E.Levin and by E. Gotsman, E. Levin and U. Maor, an...
2007.06348
Alexander Manashov
V. M. Braun, A. N. Manashov, S. Moch and J. Schoenleber
Two-loop coefficient function for DVCS: Vector contributions
typos in Eq. (5.17) corrected
null
10.1007/JHEP09(2020)117
DESY 20-116
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Using the approach based on conformal symmetry we calculate the two-loop coefficient function for the vector flavor-nonsinglet contribution to deeply-virtual Compton scattering (DVCS). The analytic expression for the coefficient function in momentum fraction space is presented in the $\overline{\text{MS}}$ scheme. Th...
[ { "created": "Mon, 13 Jul 2020 12:35:39 GMT", "version": "v1" }, { "created": "Mon, 2 Aug 2021 13:08:30 GMT", "version": "v2" } ]
2021-08-03
[ [ "Braun", "V. M.", "" ], [ "Manashov", "A. N.", "" ], [ "Moch", "S.", "" ], [ "Schoenleber", "J.", "" ] ]
Using the approach based on conformal symmetry we calculate the two-loop coefficient function for the vector flavor-nonsinglet contribution to deeply-virtual Compton scattering (DVCS). The analytic expression for the coefficient function in momentum fraction space is presented in the $\overline{\text{MS}}$ scheme. The ...
1006.0867
Mikko Laine
Y. Burnier, M. Laine, J. Langelage, L. Mether
Colour-electric spectral function at next-to-leading order
38 pages
JHEP 1008:094,2010
10.1007/JHEP08(2010)094
null
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The spectral function related to the correlator of two colour-electric fields along a Polyakov loop determines the momentum diffusion coefficient of a heavy quark near rest with respect to a heat bath. We compute this spectral function at next-to-leading order, O(alpha_s^2), in the weak-coupling expansion. The high-f...
[ { "created": "Fri, 4 Jun 2010 11:28:17 GMT", "version": "v1" } ]
2014-11-21
[ [ "Burnier", "Y.", "" ], [ "Laine", "M.", "" ], [ "Langelage", "J.", "" ], [ "Mether", "L.", "" ] ]
The spectral function related to the correlator of two colour-electric fields along a Polyakov loop determines the momentum diffusion coefficient of a heavy quark near rest with respect to a heat bath. We compute this spectral function at next-to-leading order, O(alpha_s^2), in the weak-coupling expansion. The high-fre...
1003.2623
Stepan Bulanov
S. S. Bulanov, V. D. Mur, N. B. Narozhny, J. Nees, V. S. Popov
Multiple colliding electromagnetic pulses: a way to lower the threshold of $e^+e^-$ pair production from vacuum
10 pages, 4 figures
Phys.Rev.Lett.104:220404,2010
10.1103/PhysRevLett.104.220404
null
hep-ph physics.plasm-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The scheme of simultaneous multiple pulse focusing on one spot naturally arises from the structural features of projected new laser systems, such as ELI and HiPER. It is shown that the multiple pulse configuration is beneficial for observing $e^+e^-$ pair production from vacuum under the action of sufficiently strong...
[ { "created": "Fri, 12 Mar 2010 20:56:40 GMT", "version": "v1" } ]
2015-03-13
[ [ "Bulanov", "S. S.", "" ], [ "Mur", "V. D.", "" ], [ "Narozhny", "N. B.", "" ], [ "Nees", "J.", "" ], [ "Popov", "V. S.", "" ] ]
The scheme of simultaneous multiple pulse focusing on one spot naturally arises from the structural features of projected new laser systems, such as ELI and HiPER. It is shown that the multiple pulse configuration is beneficial for observing $e^+e^-$ pair production from vacuum under the action of sufficiently strong e...
1512.06245
Aiichi Iwazaki
Aiichi Iwazaki
FRBs and dark matter axions
6 pages, no figures
null
null
Nisho-2-2015
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We have proposed a model of a progenitor of fast radio bursts (FRBs): The FRBs are emitted by electrons in atmospheres of neutron stars when neutron stars collide with dark matter axion stars. We reexamine the model by taking account of the tidal forces of the neutron stars. The axion stars are distorted by the force...
[ { "created": "Sat, 19 Dec 2015 13:16:51 GMT", "version": "v1" } ]
2015-12-22
[ [ "Iwazaki", "Aiichi", "" ] ]
We have proposed a model of a progenitor of fast radio bursts (FRBs): The FRBs are emitted by electrons in atmospheres of neutron stars when neutron stars collide with dark matter axion stars. We reexamine the model by taking account of the tidal forces of the neutron stars. The axion stars are distorted by the forces ...
2004.09824
Feng-Kun Guo
Shuntaro Sakai, Feng-Kun Guo, Bastian Kubis
Extraction of $ND$ scattering lengths from the $\Lambda_b\rightarrow\pi^-pD^0$ decay and properties of the $\Sigma_c(2800)^+$
9 pages, 6 figures; version to be published in Phys. Lett. B
Phys. Lett. B 808 (2020) 135623
10.1016/j.physletb.2020.135623
null
hep-ph hep-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The isovector and isoscalar $ND$ $s$-wave scattering lengths are extracted by fitting to the LHCb data of the $pD^0$ invariant-mass distribution in the decay $\Lambda_b\rightarrow\pi^-pD^0$, making use of the cusp effect at the $nD^+$ threshold. The analysis is based on a coupled-channel nonrelativistic effective fie...
[ { "created": "Tue, 21 Apr 2020 08:42:00 GMT", "version": "v1" }, { "created": "Wed, 22 Jul 2020 09:29:24 GMT", "version": "v2" } ]
2020-07-29
[ [ "Sakai", "Shuntaro", "" ], [ "Guo", "Feng-Kun", "" ], [ "Kubis", "Bastian", "" ] ]
The isovector and isoscalar $ND$ $s$-wave scattering lengths are extracted by fitting to the LHCb data of the $pD^0$ invariant-mass distribution in the decay $\Lambda_b\rightarrow\pi^-pD^0$, making use of the cusp effect at the $nD^+$ threshold. The analysis is based on a coupled-channel nonrelativistic effective field...
hep-ph/0302083
Arcadi Santamaria
J.F. Oliver, J. Papavassiliou, A. Santamaria
Can power corrections be reliably computed in models with extra dimensions?
31 pages, 3 figures, RevTeX4
Phys.Rev.D67:125004,2003
10.1103/PhysRevD.67.125004
FTUV-03-0211, IFIC/03-04
hep-ph
null
We critically revisit the issue of power-law running in models with extra dimensions. The analysis is carried out in the context of a higher-dimensional extension of QED, with the extra dimensions compactified on a torus. It is shown that a naive $\beta$ function, which simply counts the number of modes, depends cruc...
[ { "created": "Tue, 11 Feb 2003 18:28:07 GMT", "version": "v1" } ]
2010-11-19
[ [ "Oliver", "J. F.", "" ], [ "Papavassiliou", "J.", "" ], [ "Santamaria", "A.", "" ] ]
We critically revisit the issue of power-law running in models with extra dimensions. The analysis is carried out in the context of a higher-dimensional extension of QED, with the extra dimensions compactified on a torus. It is shown that a naive $\beta$ function, which simply counts the number of modes, depends crucia...
2211.10910
Qiang Li
Qiang Li
Charged lepton flavor violation searches in the charmonium system
1 page. An invited research highlight article
Science China Physics, Mechanics & Astronomy volume 66, Article number: 221031 (2023)
10.1007/s11433-022-2013-6
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
An invited research highlight article on Charged lepton flavor violation searches in the charmonium system.
[ { "created": "Sun, 20 Nov 2022 09:01:36 GMT", "version": "v1" } ]
2022-11-22
[ [ "Li", "Qiang", "" ] ]
An invited research highlight article on Charged lepton flavor violation searches in the charmonium system.
0802.4124
Lei Guo
Guo Lei, Ma Wen-Gan, Zhang Ren-You, and Wang Shao-Ming
One-loop QCD corrections to the $e^+e^- \to W^+ W^- b\bar b$ process at the ILC
16 pages, 11 figures
Phys.Lett.B662:150-157,2008
10.1016/j.physletb.2008.02.058
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the full contributions at the leading order(LO) and QCD next-to-leading order(NLO) to the cross section of the \eewwbb process in the standard model(SM) at the ILC. In dealing the resonance problem we adopted the complex mass scheme in both tree-level and one-loop level perturbative calculations. Our numeric...
[ { "created": "Thu, 28 Feb 2008 04:14:55 GMT", "version": "v1" }, { "created": "Wed, 26 Mar 2008 08:27:05 GMT", "version": "v2" } ]
2008-11-26
[ [ "Lei", "Guo", "" ], [ "Wen-Gan", "Ma", "" ], [ "Ren-You", "Zhang", "" ], [ "Shao-Ming", "Wang", "" ] ]
We study the full contributions at the leading order(LO) and QCD next-to-leading order(NLO) to the cross section of the \eewwbb process in the standard model(SM) at the ILC. In dealing the resonance problem we adopted the complex mass scheme in both tree-level and one-loop level perturbative calculations. Our numerical...
2108.11878
Souvik Priyam Adhya
Sreemoyee Sarkar and Souvik Priyam Adhya
Quantized electrical conductivity in binary neutron star mergers
15 pages, 7 figures
null
null
null
hep-ph astro-ph.HE nucl-th physics.plasm-ph
http://creativecommons.org/licenses/by/4.0/
We examine nature of longitudinal electrical conductivity in magnetized electron-ion plasma in the context of binary neutron star mergers. In presence of strong magnetic field, high density and temperature, quantum oscillatory behaviour for electrons emerge due to breakdown of the classical description. For pronounce...
[ { "created": "Thu, 26 Aug 2021 16:13:47 GMT", "version": "v1" } ]
2021-08-27
[ [ "Sarkar", "Sreemoyee", "" ], [ "Adhya", "Souvik Priyam", "" ] ]
We examine nature of longitudinal electrical conductivity in magnetized electron-ion plasma in the context of binary neutron star mergers. In presence of strong magnetic field, high density and temperature, quantum oscillatory behaviour for electrons emerge due to breakdown of the classical description. For pronounced ...
hep-ph/0410136
Luis Anchordoqui
L. A. Anchordoqui, Z. Fodor, S. D. Katz, A. Ringwald, H. Tu
Upper Bounds on the Neutrino-Nucleon Inelastic Cross Section
To be published in JCAP
JCAP 0506 (2005) 013
10.1088/1475-7516/2005/06/013
DESY 04-192; NUB-3251-Th-04; WUB 04-12; ITP-BUDAPEST 615
hep-ph astro-ph
null
Extraterrestrial neutrinos can initiate deeply developing air showers, and those that traverse the atmosphere unscathed may produce cascades in the ice or water. Up to now, no such events have been observed. This can be translated into upper limits on the diffuse neutrino flux. On the other hand, the observation of c...
[ { "created": "Mon, 11 Oct 2004 14:02:26 GMT", "version": "v1" }, { "created": "Wed, 22 Jun 2005 15:22:48 GMT", "version": "v2" } ]
2009-11-10
[ [ "Anchordoqui", "L. A.", "" ], [ "Fodor", "Z.", "" ], [ "Katz", "S. D.", "" ], [ "Ringwald", "A.", "" ], [ "Tu", "H.", "" ] ]
Extraterrestrial neutrinos can initiate deeply developing air showers, and those that traverse the atmosphere unscathed may produce cascades in the ice or water. Up to now, no such events have been observed. This can be translated into upper limits on the diffuse neutrino flux. On the other hand, the observation of cos...
1508.00589
Sung Hak Lim
Won Sang Cho, James S. Gainer, Doojin Kim, Sung Hak Lim, Konstantin T. Matchev, Filip Moortgat, Luc Pape, Myeonghun Park
OPTIMASS: A Package for the Minimization of Kinematic Mass Functions with Constraints
39 pages, 12 figures, (1) minor revision in section 3, (2) figure added in section 4.3, (3) reference added and (4) matched with published version
null
10.1007/JHEP01(2016)026
CTPU-15-09, APCTP-PRE2015-020, IPMU15-0115
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Reconstructed mass variables, such as $M_2$, $M_{2C}$, $M_T^\star$, and $M_{T2}^W$, play an essential role in searches for new physics at hadron colliders. The calculation of these variables generally involves constrained minimization in a large parameter space, which is numerically challenging. We provide a C++ code...
[ { "created": "Mon, 3 Aug 2015 20:23:16 GMT", "version": "v1" }, { "created": "Tue, 12 Jan 2016 07:41:38 GMT", "version": "v2" } ]
2016-01-13
[ [ "Cho", "Won Sang", "" ], [ "Gainer", "James S.", "" ], [ "Kim", "Doojin", "" ], [ "Lim", "Sung Hak", "" ], [ "Matchev", "Konstantin T.", "" ], [ "Moortgat", "Filip", "" ], [ "Pape", "Luc", "" ], [ "...
Reconstructed mass variables, such as $M_2$, $M_{2C}$, $M_T^\star$, and $M_{T2}^W$, play an essential role in searches for new physics at hadron colliders. The calculation of these variables generally involves constrained minimization in a large parameter space, which is numerically challenging. We provide a C++ code, ...
1708.02899
Pilar Coloma
Pilar Coloma, M. C. Gonzalez-Garcia, Michele Maltoni and Thomas Schwetz
A COHERENT enlightenment of the neutrino Dark Side
5 pages, 3 figures
Phys. Rev. D 96, 115007 (2017)
10.1103/PhysRevD.96.115007
FERMILAB-PUB-17-308-T, YITP-SB-17-28, IFT-UAM/CSIC-17-073
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the presence of non-standard neutrino interactions (NSI), oscillation data are affected by a degeneracy which allows the solar mixing angle to be in the second octant (aka the dark side) and implies a sign flip of the atmospheric mass-squared difference. This leads to an ambiguity in the determination of the order...
[ { "created": "Wed, 9 Aug 2017 16:30:34 GMT", "version": "v1" } ]
2017-12-20
[ [ "Coloma", "Pilar", "" ], [ "Gonzalez-Garcia", "M. C.", "" ], [ "Maltoni", "Michele", "" ], [ "Schwetz", "Thomas", "" ] ]
In the presence of non-standard neutrino interactions (NSI), oscillation data are affected by a degeneracy which allows the solar mixing angle to be in the second octant (aka the dark side) and implies a sign flip of the atmospheric mass-squared difference. This leads to an ambiguity in the determination of the orderin...
2305.18520
Daniel Litim
Gudrun Hiller, Tim H\"ohne, Daniel F. Litim, and Tom Steudtner
Vacuum Stability as a Guide for Model Building
Proceedings Moriond EW 2023, 6 pages, 5 figures
null
null
DO-TH 23/05
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explain why vector-like fermions are natural candidates to lift the Standard Model vacuum instability. Results are further discussed from the viewpoint of criticality. Several models allow for vector-like quarks and leptons in the TeV-range which can be searched for at the LHC.
[ { "created": "Mon, 29 May 2023 18:00:02 GMT", "version": "v1" }, { "created": "Sat, 3 Jun 2023 13:06:09 GMT", "version": "v2" } ]
2023-06-06
[ [ "Hiller", "Gudrun", "" ], [ "Höhne", "Tim", "" ], [ "Litim", "Daniel F.", "" ], [ "Steudtner", "Tom", "" ] ]
We explain why vector-like fermions are natural candidates to lift the Standard Model vacuum instability. Results are further discussed from the viewpoint of criticality. Several models allow for vector-like quarks and leptons in the TeV-range which can be searched for at the LHC.
hep-ph/9903226
Timo van Ritbergen
T. van Ritbergen (Karlsruhe U.)
The second order QCD contribution to the semileptonic b -> u decay rate
10 pages, 1 figure
Phys.Lett. B454 (1999) 353-358
10.1016/S0370-2693(99)00407-4
TTP99-11
hep-ph
null
The order alpha_s^2 contribution to the inclusive semileptonic decay width of a b quark \Gamma(b -> X_u e \bar{\nu}_e) is calculated analytically for zero mass u quarks.
[ { "created": "Tue, 2 Mar 1999 14:25:43 GMT", "version": "v1" } ]
2009-10-31
[ [ "van Ritbergen", "T.", "", "Karlsruhe U." ] ]
The order alpha_s^2 contribution to the inclusive semileptonic decay width of a b quark \Gamma(b -> X_u e \bar{\nu}_e) is calculated analytically for zero mass u quarks.
hep-ph/0508008
Chi-Sing Lam
C.S. Lam
What if $\theta_{13}$ Is Small?
null
null
10.1139/P06-016
null
hep-ph
null
In the basis where the charged lepton mass matrix is diagonal, the left-handed neutrino mass matrix is invariant under the permutation of the second and third generations if, and only if, the reactor angle $\theta_{13}$ is zero and the atmospheric mixing angle $\theta_{23}$ is maximal. In the presence of the seesaw m...
[ { "created": "Sun, 31 Jul 2005 03:09:43 GMT", "version": "v1" } ]
2009-11-11
[ [ "Lam", "C. S.", "" ] ]
In the basis where the charged lepton mass matrix is diagonal, the left-handed neutrino mass matrix is invariant under the permutation of the second and third generations if, and only if, the reactor angle $\theta_{13}$ is zero and the atmospheric mixing angle $\theta_{23}$ is maximal. In the presence of the seesaw mec...
2309.13906
Li-Ye Xiao
Yu-Hui Zhou, Wen-Jia Wang, Li-Ye Xiao and Xian-Hui Zhong
Strong decays of low-lying $D$-wave $\Xi_b/\Xi_b'$ baryons with QPC model
11 pages, 5 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
For further decoding the inner structure of the two excited $\Xi_b$ states observed by LHCb, we perform a systematical study of the strong decays of the low-lying $1D$-wave $\Xi_b$ and $\Xi_b'$ excitations using the quark pair creation model within the $j-j$ coupling scheme. Combining with the measured masses and dec...
[ { "created": "Mon, 25 Sep 2023 07:05:44 GMT", "version": "v1" } ]
2023-09-26
[ [ "Zhou", "Yu-Hui", "" ], [ "Wang", "Wen-Jia", "" ], [ "Xiao", "Li-Ye", "" ], [ "Zhong", "Xian-Hui", "" ] ]
For further decoding the inner structure of the two excited $\Xi_b$ states observed by LHCb, we perform a systematical study of the strong decays of the low-lying $1D$-wave $\Xi_b$ and $\Xi_b'$ excitations using the quark pair creation model within the $j-j$ coupling scheme. Combining with the measured masses and decay...
hep-ph/0012136
Marc Vanderhaeghen
N. Kivel, M.V. Polyakov, M. Vanderhaeghen
DVCS on the nucleon : study of the twist-3 effects
20 pages, 6 figures
Phys.Rev. D63 (2001) 114014
10.1103/PhysRevD.63.114014
null
hep-ph
null
We estimate the size of the twist-3 effects on deeply virtual Compton scattering (DVCS) observables, in the Wandzura-Wilczek approximation. We present results in the valence region for the DVCS cross sections, charge asymmetries and single spin asymmetries, to twist-3 accuracy.
[ { "created": "Tue, 12 Dec 2000 18:51:46 GMT", "version": "v1" } ]
2016-09-06
[ [ "Kivel", "N.", "" ], [ "Polyakov", "M. V.", "" ], [ "Vanderhaeghen", "M.", "" ] ]
We estimate the size of the twist-3 effects on deeply virtual Compton scattering (DVCS) observables, in the Wandzura-Wilczek approximation. We present results in the valence region for the DVCS cross sections, charge asymmetries and single spin asymmetries, to twist-3 accuracy.
hep-ph/9801355
John H. Field
J.H.Field
Indications for an Anomalous Right-Handed Coupling of the b-Quark from a Model Independent Analysis of LEP and SLD Data on Z-Decays
16 pages, 2 figures, 11 tables
Mod.Phys.Lett. A13 (1998) 1937-1954
10.1142/S0217732398002059
UGVA-DPNC 1997/10-172 October 1997
hep-ph
null
A model independent analysis is made using the LEP and SLD data on Z decays available at the end of 1996. The effective weak coupling constants of leptons, c quarks and b quarks are extracted. Except for the right-handed b quark coupling, they all agree well with the predictions of the Standard Electroweak Model for ...
[ { "created": "Tue, 20 Jan 1998 11:00:23 GMT", "version": "v1" }, { "created": "Mon, 20 Jul 1998 11:35:37 GMT", "version": "v2" } ]
2009-10-31
[ [ "Field", "J. H.", "" ] ]
A model independent analysis is made using the LEP and SLD data on Z decays available at the end of 1996. The effective weak coupling constants of leptons, c quarks and b quarks are extracted. Except for the right-handed b quark coupling, they all agree well with the predictions of the Standard Electroweak Model for $m...
hep-ph/9508270
Aleksander Sidorov
A.V. Sidorov
The QCD Analysis of the Structure Functions and Effective Nucleon Mass
LATEX, 6 pages, no figures
Chin.J.Phys. 34 (1996) 916-919
null
RUB-TPII-20/95 Bochum
hep-ph
null
On the basis of the target mass corrections to structure functions of deep-inelastic scattering of leptons, we evaluate effective nucleon mass that turns out to be twice $M_{nucl.}$ for deep-inelastic scattering on the nucleus target and equals $M_{nucl.}$ for the hydrogen target.
[ { "created": "Wed, 9 Aug 1995 16:33:55 GMT", "version": "v1" }, { "created": "Thu, 10 Aug 1995 11:06:39 GMT", "version": "v2" } ]
2008-02-03
[ [ "Sidorov", "A. V.", "" ] ]
On the basis of the target mass corrections to structure functions of deep-inelastic scattering of leptons, we evaluate effective nucleon mass that turns out to be twice $M_{nucl.}$ for deep-inelastic scattering on the nucleus target and equals $M_{nucl.}$ for the hydrogen target.
hep-ph/0605270
Gavin Salam
Gavin P. Salam
Infrared safe definition of jet flavour
4 pages, 3 figures, to appear in the proceedings of XLIst Rencontres de Moriond QCD and High Energy Hadronic Interactions, La Thuile, Aosta Valley, Italy, March 2006 and (in abridged form) in the proceedings of DIS 2006, Tsukuba, Japan, April 2006
null
10.1142/9789812706706_0087
LPTHE-P06-02
hep-ph
null
Though it is widely taken for granted that it makes sense to separately discuss quark and gluon jets, normal jet algorithms lead to a net parton-level jet flavour that is infrared (IR) unsafe. This writeup illustrates the problem and explains how the kt algorithm can be modified to provide an IR safe parton-level fla...
[ { "created": "Thu, 25 May 2006 10:02:39 GMT", "version": "v1" } ]
2017-08-23
[ [ "Salam", "Gavin P.", "" ] ]
Though it is widely taken for granted that it makes sense to separately discuss quark and gluon jets, normal jet algorithms lead to a net parton-level jet flavour that is infrared (IR) unsafe. This writeup illustrates the problem and explains how the kt algorithm can be modified to provide an IR safe parton-level flavo...
2007.09105
Filippo Sala
Yohei Ema, Filippo Sala, Ryosuke Sato
Dark matter models for the 511 keV galactic line predict keV electron recoils on Earth
5+3 pages, 3+3 figures. v2: clarifications and references added
null
10.1140/epjc/s10052-021-08899-y
null
hep-ph astro-ph.GA hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose models of Dark Matter that account for the 511 keV photon emission from the Galactic Centre, compatibly with experimental constraints and theoretical consistency, and where the relic abundance is achieved via p-wave annihilations or, in inelastic models, via co-annihilations. Due to the Dark Matter compone...
[ { "created": "Fri, 17 Jul 2020 16:32:50 GMT", "version": "v1" }, { "created": "Sat, 30 Jan 2021 18:50:35 GMT", "version": "v2" } ]
2021-02-02
[ [ "Ema", "Yohei", "" ], [ "Sala", "Filippo", "" ], [ "Sato", "Ryosuke", "" ] ]
We propose models of Dark Matter that account for the 511 keV photon emission from the Galactic Centre, compatibly with experimental constraints and theoretical consistency, and where the relic abundance is achieved via p-wave annihilations or, in inelastic models, via co-annihilations. Due to the Dark Matter component...
hep-ph/0610441
Graham Shaw
Graham Shaw
Colour dipoles and the HERA data
12 pages, 10 Figures. Talk given at Diffraction 06, International Workshop on Diffraction in High-Energy Physics, September 5-10, 2006, Adamantas, Milos island, Greece}
PoSDIFF2006:038,2006
null
MAN/HEP/2006/31
hep-ph
null
A very wide body of HERA diffractive electroproduction data is confronted with the predictions of the colour dipole model. In doing so we focus upon three different parameterisations of the dipole scattering cross-section, whose parameters are fixed by analysis of DIS structure function data. This analysis strongly s...
[ { "created": "Tue, 31 Oct 2006 17:36:26 GMT", "version": "v1" } ]
2008-11-26
[ [ "Shaw", "Graham", "" ] ]
A very wide body of HERA diffractive electroproduction data is confronted with the predictions of the colour dipole model. In doing so we focus upon three different parameterisations of the dipole scattering cross-section, whose parameters are fixed by analysis of DIS structure function data. This analysis strongly sug...
hep-ph/9911280
Plaszczynski
S. Plaszczynski and M.H Schune
Overall determination of the CKM matrix
Talk given at Heavy Flavours 8, Southampton, UK, 1999
null
null
LAL 99-67
hep-ph
null
We discuss the problem of theoretical uncertainties in the combination of observables related to the CKM matrix elements and propose a statistically sensible method for combining them. The overall fit is performed on present data, and constraints on the matrix elements are presented as well as on fB*sqrt(Bb). We then...
[ { "created": "Tue, 9 Nov 1999 11:07:51 GMT", "version": "v1" } ]
2007-05-23
[ [ "Plaszczynski", "S.", "" ], [ "Schune", "M. H", "" ] ]
We discuss the problem of theoretical uncertainties in the combination of observables related to the CKM matrix elements and propose a statistically sensible method for combining them. The overall fit is performed on present data, and constraints on the matrix elements are presented as well as on fB*sqrt(Bb). We then e...
0910.1333
Enrique Ruiz Arriola
E. Ruiz Arriola, A. Calle Cordon
Renormalization and Universality of NN interactions in Chiral Quark and Soliton Models
Talk presented at Mini-Workshop Bled 2009: Problems in Multi-Quark States, Bled, Slovenia, 29 June - 6 July 2009, 8 pages, 1 figure
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We use renormalization as a tool to extract universal features of the NN interaction in quark and soliton nucleon models, having the same long distance behaviour but different short distance components. While fine tuning conditions in the models make difficult to fit NN data, the introduction of suitable renormalizat...
[ { "created": "Wed, 7 Oct 2009 18:31:18 GMT", "version": "v1" } ]
2009-10-08
[ [ "Arriola", "E. Ruiz", "" ], [ "Cordon", "A. Calle", "" ] ]
We use renormalization as a tool to extract universal features of the NN interaction in quark and soliton nucleon models, having the same long distance behaviour but different short distance components. While fine tuning conditions in the models make difficult to fit NN data, the introduction of suitable renormalizatio...
1710.06437
Lingfeng Li
Lingfeng Li, Ennio Salvioni, Yuhsin Tsai, Rui Zheng
Electroweak-Charged Bound States as LHC Probes of Hidden Forces
12 pages, 9 figures
Phys. Rev. D 97, 015010 (2018)
10.1103/PhysRevD.97.015010
TUM-HEP-1103-17, UMD-PP-017-032
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore the LHC reach on beyond-the-Standard Model (BSM) particles $X$ associated with a new strong force in a hidden sector. We focus on the motivated scenario where the SM and hidden sectors are connected by fermionic mediators $\psi^{+, 0}$ that carry SM electroweak charges. The most promising signal is the Dre...
[ { "created": "Tue, 17 Oct 2017 18:00:03 GMT", "version": "v1" }, { "created": "Fri, 20 Apr 2018 04:39:51 GMT", "version": "v2" } ]
2018-04-23
[ [ "Li", "Lingfeng", "" ], [ "Salvioni", "Ennio", "" ], [ "Tsai", "Yuhsin", "" ], [ "Zheng", "Rui", "" ] ]
We explore the LHC reach on beyond-the-Standard Model (BSM) particles $X$ associated with a new strong force in a hidden sector. We focus on the motivated scenario where the SM and hidden sectors are connected by fermionic mediators $\psi^{+, 0}$ that carry SM electroweak charges. The most promising signal is the Drell...
hep-ph/0511071
Emilio Torrente-Lujan
V. Antonelli, E. Torrente-Lujan
Statistically improved Analysis of Neutrino Oscillation Data with the latest KamLAND result
Author attributions corrected
null
null
null
hep-ph
null
We present an updated analysis of all available solar and reactor neutrino data, emphasizing in particular the totality of the KamLAND (314d live time) results and including for the first time the solar $SNO$ (391d live time, phase II NaCl-enhanced) spectrum data. As a novelty of the statistical analysis, we study th...
[ { "created": "Mon, 7 Nov 2005 12:19:15 GMT", "version": "v1" }, { "created": "Fri, 11 Nov 2005 15:42:01 GMT", "version": "v2" } ]
2007-05-23
[ [ "Antonelli", "V.", "" ], [ "Torrente-Lujan", "E.", "" ] ]
We present an updated analysis of all available solar and reactor neutrino data, emphasizing in particular the totality of the KamLAND (314d live time) results and including for the first time the solar $SNO$ (391d live time, phase II NaCl-enhanced) spectrum data. As a novelty of the statistical analysis, we study the ...
2108.04613
Aleksandra Lelek
Aleksandra Lelek
Drell-Yan $p_{\bot}$ with NLO-matched Parton Branching TMDs at energies from fixed-target to LHC
Contribution to the 2021 DIS conference, Submission to SciPost
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The description of the Drell-Yan (DY) transverse momentum spectrum requires matching of fixed order QCD calculations with soft gluon resummation up to all orders in the QCD coupling. It has been noticed in the literature that a consistent description of DY data in a wide kinematic regime from fixed-target to LHC ener...
[ { "created": "Tue, 10 Aug 2021 11:49:00 GMT", "version": "v1" }, { "created": "Fri, 18 Mar 2022 08:25:40 GMT", "version": "v2" } ]
2022-03-21
[ [ "Lelek", "Aleksandra", "" ] ]
The description of the Drell-Yan (DY) transverse momentum spectrum requires matching of fixed order QCD calculations with soft gluon resummation up to all orders in the QCD coupling. It has been noticed in the literature that a consistent description of DY data in a wide kinematic regime from fixed-target to LHC energi...
hep-ph/0403202
Yong Zhou
Yong Zhou
Singularities of Feynman propagators and Corrections of Cutting rules and usual momentum integral algorism in dimensional regularization prescription
This manuscript has been removed duo to incorrect contents
null
null
null
hep-ph
null
This manuscript has been removed duo to incorrect contents.
[ { "created": "Thu, 18 Mar 2004 13:13:10 GMT", "version": "v1" }, { "created": "Fri, 23 Jul 2004 09:00:50 GMT", "version": "v2" } ]
2007-05-23
[ [ "Zhou", "Yong", "" ] ]
This manuscript has been removed duo to incorrect contents.
1112.1533
Yu. A. Simonov
Yu. A. Simonov
Theory of time-like baryon form factors near thresholds
5 pages,4 figures
Phys. Rev. D 85, 125025 (2012)
10.1103/PhysRevD.85.125025
null
hep-ph hep-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A new mechanism of baryon-antibaryon production via nonperturbative double pair creation in intermediate mesons is proposed and the theory contains no fitting parameters. It is shown, that near-threshold resonances are responsible for enhancements in electroproduction cross sections: $\psi(4S)$ for $\Lambda^+_c \Lamb...
[ { "created": "Wed, 7 Dec 2011 11:47:43 GMT", "version": "v1" } ]
2014-01-29
[ [ "Simonov", "Yu. A.", "" ] ]
A new mechanism of baryon-antibaryon production via nonperturbative double pair creation in intermediate mesons is proposed and the theory contains no fitting parameters. It is shown, that near-threshold resonances are responsible for enhancements in electroproduction cross sections: $\psi(4S)$ for $\Lambda^+_c \Lambda...
2402.16441
Animesh Chatterjee
Animesh Chatterjee and Albert De Roeck
Neutrino oscillations with atmospheric neutrinos at large liquid argon TPCs
6 pages, 4 figures. Revised text,references added, result unchanged
null
null
null
hep-ph hep-ex
http://creativecommons.org/publicdomain/zero/1.0/
We propose to study atmospheric neutrino interactions with a unique event topology to distinguish neutrinos and anti-neutrinos using a liquid argon time projection chamber in an experiment such as DUNE. The detection of CC1P and CC0P events will allow to access neutrino oscillation physics complementary to accelerato...
[ { "created": "Mon, 26 Feb 2024 09:38:28 GMT", "version": "v1" }, { "created": "Wed, 6 Mar 2024 22:41:57 GMT", "version": "v2" }, { "created": "Thu, 4 Apr 2024 12:04:33 GMT", "version": "v3" } ]
2024-04-05
[ [ "Chatterjee", "Animesh", "" ], [ "De Roeck", "Albert", "" ] ]
We propose to study atmospheric neutrino interactions with a unique event topology to distinguish neutrinos and anti-neutrinos using a liquid argon time projection chamber in an experiment such as DUNE. The detection of CC1P and CC0P events will allow to access neutrino oscillation physics complementary to accelerator ...
hep-ph/0202225
Moninder Singh Modgil
Vikram Soni, Moninder Singh Modgil and Desdeep Sahdev
The Quark Gluon Pion Plasma
Rewritten, new figures
Phys.Lett. B552 (2003) 165-171
10.1016/S0370-2693(02)03149-0
IITK Physics Preprint, 2nd December 2002
hep-ph
null
While it is commonly believed that there is a {\it direct} transition from the hadronic to a quark gluon phase at high temperature, it would be prejudicial to rule out a sequence of dynamically generated intermediate scales. Using as guide, an effective lagrangian with unconfined gluons and constituent quarks, intera...
[ { "created": "Sun, 24 Feb 2002 20:38:23 GMT", "version": "v1" }, { "created": "Tue, 26 Feb 2002 14:06:51 GMT", "version": "v2" }, { "created": "Mon, 2 Dec 2002 23:30:02 GMT", "version": "v3" } ]
2009-11-07
[ [ "Soni", "Vikram", "" ], [ "Modgil", "Moninder Singh", "" ], [ "Sahdev", "Desdeep", "" ] ]
While it is commonly believed that there is a {\it direct} transition from the hadronic to a quark gluon phase at high temperature, it would be prejudicial to rule out a sequence of dynamically generated intermediate scales. Using as guide, an effective lagrangian with unconfined gluons and constituent quarks, interact...
hep-ph/9505201
Yoshio Koide
Y. Koide and H. Fusaoka
Top Quark Mass Enhancement in a Seesaw-Type Quark Mass Matrix
22 pages, Latex, 5 postscript figures available upon request
Z.Phys.C71:459-468,1996
10.1007/s002880050191
US-95-03 & AMU-95-04, Revised Version
hep-ph
null
We investigate the implications of a seesaw type mass matrix, i.e., $M_f\simeq m_L M_F^{-1} m_R$, for quarks and leptons $f$ under the assumption that the matrices $m_L$ and $m_R$ are common to all flavors (up-/down- and quark-/lepton- sectors) and the matrices $M_F$ characterizing the heavy fermion sectors have the ...
[ { "created": "Mon, 1 May 1995 12:16:07 GMT", "version": "v1" }, { "created": "Tue, 9 May 1995 12:45:44 GMT", "version": "v2" }, { "created": "Sun, 19 Nov 1995 05:50:56 GMT", "version": "v3" } ]
2010-11-01
[ [ "Koide", "Y.", "" ], [ "Fusaoka", "H.", "" ] ]
We investigate the implications of a seesaw type mass matrix, i.e., $M_f\simeq m_L M_F^{-1} m_R$, for quarks and leptons $f$ under the assumption that the matrices $m_L$ and $m_R$ are common to all flavors (up-/down- and quark-/lepton- sectors) and the matrices $M_F$ characterizing the heavy fermion sectors have the fo...
hep-ph/9408406
Lawrence Hall
R. Barbieri and L.J. Hall
Signals For Supersymmetric Unification
14 pages, LBL-36022
Phys.Lett.B338:212-218,1994
10.1016/0370-2693(94)91368-4
null
hep-ph
null
Using the Yukawa couplings of the minimal supersymmetric SU(5) model, the rates for $\mu \to e\gamma$, $\mu \to e$ conversion and $\tau \to \mu \gamma$ are computed. For a selectron mass of 100 GeV, and without exploring the full parameter space, we find rates which are one order of magnitude beneath present experime...
[ { "created": "Thu, 1 Sep 1994 01:51:02 GMT", "version": "v1" } ]
2008-11-26
[ [ "Barbieri", "R.", "" ], [ "Hall", "L. J.", "" ] ]
Using the Yukawa couplings of the minimal supersymmetric SU(5) model, the rates for $\mu \to e\gamma$, $\mu \to e$ conversion and $\tau \to \mu \gamma$ are computed. For a selectron mass of 100 GeV, and without exploring the full parameter space, we find rates which are one order of magnitude beneath present experiment...
hep-ph/9906518
Markus Diehl
M. Diehl
Diffractive Interactions: Theory Summary
9 pages, 3 figures. Talk given at the 7th International Workshop on Deep Inelastic Scattering and QCD (DIS 99), Zeuthen, Germany, 19-23 April 1999
Nucl.Phys.Proc.Suppl. 79 (1999) 723-731
10.1016/S0920-5632(99)00814-2
DESY 99-080
hep-ph
null
I review various theory issues in diffraction that have been presented and discussed in the working group on diffractive interactions, and a few points concerning the comparison of theory with data.
[ { "created": "Mon, 28 Jun 1999 07:30:47 GMT", "version": "v1" } ]
2009-10-31
[ [ "Diehl", "M.", "" ] ]
I review various theory issues in diffraction that have been presented and discussed in the working group on diffractive interactions, and a few points concerning the comparison of theory with data.
1708.08456
Nuno Rosa Agostinho
Nuno Rosa Agostinho, O.J.P.Eboli and M.C.Gonzalez-Garcia
LHC Run I Bounds on Minimal Lepton Flavour Violation in Type-III See-saw: A Case Study
21 pages, 6 figures
null
null
YITP-SB-17-31
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the bounds on minimal lepton flavour violation in the context of Type-III see-saw imposed by LHC Run I search for events which contain two charged leptons (either electron or muons of equal or opposite sign), two jets from a hadronically decaying $W$ boson and large missing transverse momentum. In this scena...
[ { "created": "Mon, 28 Aug 2017 18:00:02 GMT", "version": "v1" } ]
2017-08-30
[ [ "Agostinho", "Nuno Rosa", "" ], [ "Eboli", "O. J. P.", "" ], [ "Gonzalez-Garcia", "M. C.", "" ] ]
We study the bounds on minimal lepton flavour violation in the context of Type-III see-saw imposed by LHC Run I search for events which contain two charged leptons (either electron or muons of equal or opposite sign), two jets from a hadronically decaying $W$ boson and large missing transverse momentum. In this scenari...
hep-ph/9606357
null
Jens O. Andersen
The Electric Screening Mass in Scalar Electrodynamics at High Temperature
20 pages Latex, 6 figures included
Z.Phys. C75 (1997) 147-154
null
Oslo-TP 6-96
hep-ph
null
We study the screening of static electric fields in massless scalar electrodynamics at high temperature and zero chemical potential. Effective field theory methods are used to separate the contributions from the momentum scales T and eT to the electric screening mass. The effects of the distance scale 1/T are encoded...
[ { "created": "Tue, 18 Jun 1996 12:57:48 GMT", "version": "v1" } ]
2016-09-06
[ [ "Andersen", "Jens O.", "" ] ]
We study the screening of static electric fields in massless scalar electrodynamics at high temperature and zero chemical potential. Effective field theory methods are used to separate the contributions from the momentum scales T and eT to the electric screening mass. The effects of the distance scale 1/T are encoded i...
hep-ph/9707480
Channa Paranavitane
J.P. Ma, B.H.J. McKellar, C.B. Paranavitane
$J/\Psi$-Production at Photon-Photon Colliders as a Probe of the Color Octet Mechanism
9 pages, 3 Postscript figures
Phys.Rev. D57 (1998) 606-609
10.1103/PhysRevD.57.606
UM-P-97/46
hep-ph
null
We study $J/\Psi$ production at photon-photon colliders, which can be realised with Compton scaterring of laser photons at $e^+e^-$ colliders. We find that the production rate through the color-octet channel is comparable to that through the color-singlet channel. Experimentally the two mechanisms can be studied sepa...
[ { "created": "Sat, 26 Jul 1997 03:46:34 GMT", "version": "v1" } ]
2009-10-30
[ [ "Ma", "J. P.", "" ], [ "McKellar", "B. H. J.", "" ], [ "Paranavitane", "C. B.", "" ] ]
We study $J/\Psi$ production at photon-photon colliders, which can be realised with Compton scaterring of laser photons at $e^+e^-$ colliders. We find that the production rate through the color-octet channel is comparable to that through the color-singlet channel. Experimentally the two mechanisms can be studied separa...
hep-ph/9407371
Kiselev
V.V.Kiselev
Scaling Properties of $S$-wave Level Density for Heavy Quarkonium from QCD Sum Rules
Preprint IHEP 94-75, LATEX, 22 pages
null
null
null
hep-ph
null
In the framework of a specific scheme of the QCD sum rules for $S$-wave levels of the heavy quarkonium, one derives an expression, relating the energetic density of quarkonium states and universal characteristics in the heavy quarkonium physics, such as the difference between the masses of a heavy quark $Q$ and meson...
[ { "created": "Tue, 26 Jul 1994 10:55:25 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kiselev", "V. V.", "" ] ]
In the framework of a specific scheme of the QCD sum rules for $S$-wave levels of the heavy quarkonium, one derives an expression, relating the energetic density of quarkonium states and universal characteristics in the heavy quarkonium physics, such as the difference between the masses of a heavy quark $Q$ and meson $...
2301.07365
Gang Li
Xiao-Yun Wang, Zu-Xin Cai, Gang Li, Shi-Dong Liu, Chun-Sheng An, Ju-Jun Xie
Production of $X_b$ via $\Upsilon(5S, 6S)$ radiative decays
9 pages, 2 figures, comments are welcome
null
10.1140/epjc/s10052-023-11333-0
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We investigate the production of $X_b$ in the process $\Upsilon(5S,6S)\to \gamma X_b$, where $X_b$ is assumed to be a $B {\bar B}^*$ molecular state. Two kinds of meson loops of $B^{(*)}{\bar B}^{(*)}$ and $B_1^{\prime}{\bar B}^{(*)}$ were considered. To explore the rescattering mechanism, we calculated the relevant ...
[ { "created": "Wed, 18 Jan 2023 08:17:07 GMT", "version": "v1" } ]
2023-03-22
[ [ "Wang", "Xiao-Yun", "" ], [ "Cai", "Zu-Xin", "" ], [ "Li", "Gang", "" ], [ "Liu", "Shi-Dong", "" ], [ "An", "Chun-Sheng", "" ], [ "Xie", "Ju-Jun", "" ] ]
We investigate the production of $X_b$ in the process $\Upsilon(5S,6S)\to \gamma X_b$, where $X_b$ is assumed to be a $B {\bar B}^*$ molecular state. Two kinds of meson loops of $B^{(*)}{\bar B}^{(*)}$ and $B_1^{\prime}{\bar B}^{(*)}$ were considered. To explore the rescattering mechanism, we calculated the relevant br...
0707.4037
Pierpaolo Mastrolia
Mario Argeri, and Pierpaolo Mastrolia
Feynman Diagrams and Differential Equations
invited review article from Int. J. Mod. Phys. A
Int.J.Mod.Phys.A22:4375-4436,2007
10.1142/S0217751X07037147
ZU-TH 19/07
hep-ph
null
We review in a pedagogical way the method of differential equations for the evaluation of D-dimensionally regulated Feynman integrals. After dealing with the general features of the technique, we discuss its application in the context of one- and two-loop corrections to the photon propagator in QED, by computing the ...
[ { "created": "Fri, 27 Jul 2007 14:38:12 GMT", "version": "v1" } ]
2008-11-26
[ [ "Argeri", "Mario", "" ], [ "Mastrolia", "Pierpaolo", "" ] ]
We review in a pedagogical way the method of differential equations for the evaluation of D-dimensionally regulated Feynman integrals. After dealing with the general features of the technique, we discuss its application in the context of one- and two-loop corrections to the photon propagator in QED, by computing the Va...
2103.06225
Pier Paolo Giardino
Lina Alasfar, Giuseppe Degrassi, Pier Paolo Giardino, Ramona Gr\"ober and Marco Vitti
Virtual corrections to $gg\to ZH$ via a transverse momentum expansion
21 pages, 3 Figures and 1 Table
null
10.1007/JHEP05(2021)168
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We compute the next-to-leading virtual QCD corrections to the partonic cross section of the production of a Higgs boson in association with a $Z$ boson in gluon fusion. The calculation is based on the recently introduced method of evaluating the amplitude via an expansion in terms of a small transverse momentum. We g...
[ { "created": "Wed, 10 Mar 2021 17:50:33 GMT", "version": "v1" } ]
2023-01-11
[ [ "Alasfar", "Lina", "" ], [ "Degrassi", "Giuseppe", "" ], [ "Giardino", "Pier Paolo", "" ], [ "Gröber", "Ramona", "" ], [ "Vitti", "Marco", "" ] ]
We compute the next-to-leading virtual QCD corrections to the partonic cross section of the production of a Higgs boson in association with a $Z$ boson in gluon fusion. The calculation is based on the recently introduced method of evaluating the amplitude via an expansion in terms of a small transverse momentum. We gen...
hep-ph/0608122
Bernd Kniehl
B. A. Kniehl
D-meson production in the GM-VFN scheme
4 pages, 4 figures, to appear in the Proceedings of the XIV International Workshop on Deep Inelastic Scattering (DIS 2006), 20-24 April 2006, Tsukuba City, Japan
null
10.1142/9789812706706_0132
null
hep-ph
null
We study the inclusive hadrodroduction of D^0, D^+, D^{*+}, and D_s^+ mesons at next-to-leading order in the parton model of quantum chromodynamics endowed with universal non-perturbative fragmentation functions (FFs) fitted to e^+e^- annihilation data from CERN LEP1. Working in the general-mass variable-flavor-numbe...
[ { "created": "Thu, 10 Aug 2006 20:40:41 GMT", "version": "v1" } ]
2017-08-23
[ [ "Kniehl", "B. A.", "" ] ]
We study the inclusive hadrodroduction of D^0, D^+, D^{*+}, and D_s^+ mesons at next-to-leading order in the parton model of quantum chromodynamics endowed with universal non-perturbative fragmentation functions (FFs) fitted to e^+e^- annihilation data from CERN LEP1. Working in the general-mass variable-flavor-number ...
hep-ph/0207259
Johannes Bluemlein
J. Bl\"umlein and H. Kawamura
Universal QED Corrections to Polarized Electron Scattering in Higher Orders
6 pages LATEX, 1 style file, Contribution DIS 2002, April 2002, Cracow
Acta Phys.Polon. B33 (2002) 3719-3724
null
null
hep-ph
null
We derive QED radiators for the universal corrections to polarized electron scattering. To 5th order in the coupling constant the flavor non-singlet and singlet contributions are calculated. We derive the non-singlet and singlet exponentiation of the leading terms propertional to (alpha ln^2(x))^k to all orders.
[ { "created": "Mon, 22 Jul 2002 07:22:29 GMT", "version": "v1" } ]
2007-05-23
[ [ "Blümlein", "J.", "" ], [ "Kawamura", "H.", "" ] ]
We derive QED radiators for the universal corrections to polarized electron scattering. To 5th order in the coupling constant the flavor non-singlet and singlet contributions are calculated. We derive the non-singlet and singlet exponentiation of the leading terms propertional to (alpha ln^2(x))^k to all orders.
hep-ph/9809314
Levai Peter
Miklos Gyulassy (Columbia Univ.) and Peter Levai (Columbia Univ. and KFKI RMKI)
High p_T Phenomena in Heavy Ion Collisions at s^1/2=20 and 200 AGeV
9 pages, Latex, 3 EPS figures, contribution to the Proceedings of the 8th International Workshop on Multiparticle Production: Correlations and Fluctuations '98 (CF'98), Matrahaza, Hungary, 14-21 June 1998
null
null
null
hep-ph
null
Jet quenching as observed via high p_T hadron production is studied in the HIJING1.35 model. We test the model on recent WA98 data on 160 AGeV Pb+Pb -> pi0 up to 4 GeV/c. The results depend sensitively on the model of the Cronin effect. At (RHIC) collider energies (s^1/2 > 200 AGeV), on the other hand, semi-hard hadr...
[ { "created": "Wed, 9 Sep 1998 23:34:07 GMT", "version": "v1" } ]
2007-05-23
[ [ "Gyulassy", "Miklos", "", "Columbia Univ." ], [ "Levai", "Peter", "", "Columbia Univ. and\n KFKI RMKI" ] ]
Jet quenching as observed via high p_T hadron production is studied in the HIJING1.35 model. We test the model on recent WA98 data on 160 AGeV Pb+Pb -> pi0 up to 4 GeV/c. The results depend sensitively on the model of the Cronin effect. At (RHIC) collider energies (s^1/2 > 200 AGeV), on the other hand, semi-hard hadron...
1303.2307
Lei Guo
Li Xiao-Zhou, Ma Wen-Gan, Zhang Ren-You, and Guo Lei
$WW\gamma/Z$ production in the Randall-Sundrum model at LHC and CLIC
22 pages, 18 figures
Phys. Rev. D 87 (2013) 056008
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the $W^+W^-\gamma(Z)$ productions at both the CERN Large Hadron Collider (LHC) and the Compact Linear Collider (CLIC) in the framework of the Randall-Sundrum (RS) model. The impacts of the virtual RS Kaluza-Klein (KK) graviton on these processes are studied and compared with the standard model (SM) backgroun...
[ { "created": "Sun, 10 Mar 2013 10:57:03 GMT", "version": "v1" }, { "created": "Tue, 26 Mar 2013 03:02:07 GMT", "version": "v2" } ]
2013-03-27
[ [ "Xiao-Zhou", "Li", "" ], [ "Wen-Gan", "Ma", "" ], [ "Ren-You", "Zhang", "" ], [ "Lei", "Guo", "" ] ]
We study the $W^+W^-\gamma(Z)$ productions at both the CERN Large Hadron Collider (LHC) and the Compact Linear Collider (CLIC) in the framework of the Randall-Sundrum (RS) model. The impacts of the virtual RS Kaluza-Klein (KK) graviton on these processes are studied and compared with the standard model (SM) background....
1801.04722
Yu. A. Simonov
Yu.A. Simonov
Fractional dynamics of fermion generations
22 pages, 4 tables, no figures,new eqs and refs added
null
null
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The dynamics of fermion generations is treated in the framework of the fractional Lagrangian and Hamiltonian in the compact extra dimension. The resulting spectra for u, d, e generations are described by the only mass parameter and slightly different fractional numbers, while the neutrino spectra need another mass pa...
[ { "created": "Mon, 15 Jan 2018 10:25:53 GMT", "version": "v1" }, { "created": "Wed, 24 Jan 2018 10:12:38 GMT", "version": "v2" } ]
2018-01-25
[ [ "Simonov", "Yu. A.", "" ] ]
The dynamics of fermion generations is treated in the framework of the fractional Lagrangian and Hamiltonian in the compact extra dimension. The resulting spectra for u, d, e generations are described by the only mass parameter and slightly different fractional numbers, while the neutrino spectra need another mass para...
2211.10834
Tao Guo
Tao Guo, Jianing Li, Jiaxing Zhao, and Lianyi He
Investigation of the tetraquark states $Qq\bar{Q} \bar{q}$ in the improved chromomagnetic interaction model
11 pages, 9 figures, and 4 tables; accepted for publication in Chinese Physics C
Chin. Phys. C 47 (2023) 6, 063107
10.1088/1674-1137/accb87
null
hep-ph hep-ex
http://creativecommons.org/publicdomain/zero/1.0/
In the framework of the improved chromomagnetic interaction model, we complete a systematic study of the $S$-wave tetraquark states $Qq\bar{Q}\bar{q}$ ($Q=c,b$, and $q=u,d,s$) with different quantum numbers, $J^{PC}=0^{+(+)}$, $1^{+(\pm)}$, and $2^{+(+)}$. The mass spectra of tetraquark states are predicted and the p...
[ { "created": "Sun, 20 Nov 2022 01:08:29 GMT", "version": "v1" }, { "created": "Thu, 1 Dec 2022 13:07:12 GMT", "version": "v2" }, { "created": "Fri, 31 Mar 2023 07:30:13 GMT", "version": "v3" } ]
2023-05-26
[ [ "Guo", "Tao", "" ], [ "Li", "Jianing", "" ], [ "Zhao", "Jiaxing", "" ], [ "He", "Lianyi", "" ] ]
In the framework of the improved chromomagnetic interaction model, we complete a systematic study of the $S$-wave tetraquark states $Qq\bar{Q}\bar{q}$ ($Q=c,b$, and $q=u,d,s$) with different quantum numbers, $J^{PC}=0^{+(+)}$, $1^{+(\pm)}$, and $2^{+(+)}$. The mass spectra of tetraquark states are predicted and the pos...
hep-ph/0702199
Yosef Nir
Yosef Nir
Introduction to leptogenesis
7 pages, 1 figure; Invited talk at the 6th Recontres du Vietnam, `Challenges in Particle Astrophysics,' Hanoi, Vietnam, August 6-12, 2006
null
null
null
hep-ph
null
The discovery of neutrino masses makes leptogenesis a very attractive scenario for explaining the puzzle of the baryon asymmetry of the Universe. We present the basic ingredients of leptogenesis, explain the predictive power of this scenario (and its limitations), and describe recent theoretical developments.
[ { "created": "Tue, 20 Feb 2007 10:10:48 GMT", "version": "v1" } ]
2007-05-23
[ [ "Nir", "Yosef", "" ] ]
The discovery of neutrino masses makes leptogenesis a very attractive scenario for explaining the puzzle of the baryon asymmetry of the Universe. We present the basic ingredients of leptogenesis, explain the predictive power of this scenario (and its limitations), and describe recent theoretical developments.
1605.07475
Xing-Xing Dong
Xing-Xing Dong, Shu-Min Zhao, Hai-Bin Zhang, Fang Wang, Tai-Fu Feng
The Feynman rules for neutrinos and new neutralinos in BLMSSM
Accepted by Chinese Physics C
null
10.1088/1674-1137/40/9/093103
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In a supersymmetric extension of the standard model where baryon and lepton numbers are local gauge symmetries(BLMSSM), we deduce the Feynman rules for neutrinos and new neutralinos. We briey introduce the mass matrices for the particles and the related couplings in this work, which are very useful to research the ne...
[ { "created": "Tue, 24 May 2016 14:18:19 GMT", "version": "v1" }, { "created": "Wed, 25 May 2016 07:07:14 GMT", "version": "v2" } ]
2016-05-30
[ [ "Dong", "Xing-Xing", "" ], [ "Zhao", "Shu-Min", "" ], [ "Zhang", "Hai-Bin", "" ], [ "Wang", "Fang", "" ], [ "Feng", "Tai-Fu", "" ] ]
In a supersymmetric extension of the standard model where baryon and lepton numbers are local gauge symmetries(BLMSSM), we deduce the Feynman rules for neutrinos and new neutralinos. We briey introduce the mass matrices for the particles and the related couplings in this work, which are very useful to research the neut...
hep-ph/0208067
Christopher Kolda
Mark Byrne, Christopher Kolda and Jason E. Lennon
Updated Implications of the Muon Anomalous Magnetic Moment for Supersymmetry
21 pages, LaTeX, 15 figures. This paper is a major revision of hep-ph/0108122 with theoretical sections left mostly unchanged but with completely new discussions in light of the most recent E821 data and with all new abstract/conclusions. This version is updated to match published version
Phys.Rev. D67 (2003) 075004
10.1103/PhysRevD.67.075004
null
hep-ph
null
We re-examine the bounds on supersymmetric particle masses in light of the new E821 data on the muon anomalous magnetic moment and the revised theoretical calculations of its hadronic contributions. The current experimental excess is either 1.5 sigma or 3.2 sigma depending on whether e+e- or tau-decay data are used i...
[ { "created": "Wed, 7 Aug 2002 19:35:07 GMT", "version": "v1" }, { "created": "Mon, 7 Jul 2003 20:28:04 GMT", "version": "v2" } ]
2009-11-07
[ [ "Byrne", "Mark", "" ], [ "Kolda", "Christopher", "" ], [ "Lennon", "Jason E.", "" ] ]
We re-examine the bounds on supersymmetric particle masses in light of the new E821 data on the muon anomalous magnetic moment and the revised theoretical calculations of its hadronic contributions. The current experimental excess is either 1.5 sigma or 3.2 sigma depending on whether e+e- or tau-decay data are used in ...
1311.5297
P. S. Bhupal Dev
P. S. Bhupal Dev, Anupam Mazumdar, Saleh Qutub
Constraining Non-thermal and Thermal properties of Dark Matter
29 pages, 8 figures; some clarifications and references added; published version
Frontiers in Physics 2, 26 (2014)
10.3389/fphy.2014.00026
MAN/HEP/2013/23
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We describe the evolution of Dark Matter (DM) abundance from the very onset of its creation from inflaton decay under the assumption of an instantaneous reheating. Based on the initial conditions such as the inflaton mass and its decay branching ratio to DM, reheating temperature, and the DM mass and interaction rate...
[ { "created": "Thu, 21 Nov 2013 02:50:00 GMT", "version": "v1" }, { "created": "Fri, 9 May 2014 15:09:19 GMT", "version": "v2" } ]
2014-05-12
[ [ "Dev", "P. S. Bhupal", "" ], [ "Mazumdar", "Anupam", "" ], [ "Qutub", "Saleh", "" ] ]
We describe the evolution of Dark Matter (DM) abundance from the very onset of its creation from inflaton decay under the assumption of an instantaneous reheating. Based on the initial conditions such as the inflaton mass and its decay branching ratio to DM, reheating temperature, and the DM mass and interaction rate w...
1009.0232
Keith Olive
Keith A. Olive
Dark Matter in SuperGUT Unification Models
12 pages, 16 figures, To be published in the Proceedings of the 6th DSU Conference, Leon, Mexico, ed. D. Delepine
J.Phys.Conf.Ser.315:012021,2011
10.1088/1742-6596/315/1/012021
UMN-TH-2913/10, FTPI-MINN-10/21
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
After a brief update on the prospects for dark matter in the constrained version of the MSSM (CMSSM) and its differences with models based on minimal supergravity (mSUGRA), I will consider the effects of unifying the supersymmetry-breaking parameters at a scale above M_{GUT}. One of the consequences of superGUT unifi...
[ { "created": "Wed, 1 Sep 2010 17:54:40 GMT", "version": "v1" } ]
2011-08-25
[ [ "Olive", "Keith A.", "" ] ]
After a brief update on the prospects for dark matter in the constrained version of the MSSM (CMSSM) and its differences with models based on minimal supergravity (mSUGRA), I will consider the effects of unifying the supersymmetry-breaking parameters at a scale above M_{GUT}. One of the consequences of superGUT unifica...
0711.3143
Jan Michael Friedrich
Suh-Urk Chung and Jan Friedrich
Covariant Helicity-Coupling Amplitudes: A New Formulation
null
Phys.Rev.D78:074027,2008
10.1103/PhysRevD.78.074027
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We have worked out covariant amplitudes for any two-body decay of a resonance with an arbitrary non-zero mass, which involves arbitrary integer spins in the initial and the final states. One key new ingredient for this work is the application of the total intrinsic spin operator $\vec S$ which is given directly in te...
[ { "created": "Tue, 20 Nov 2007 14:21:44 GMT", "version": "v1" }, { "created": "Wed, 5 Mar 2008 20:34:36 GMT", "version": "v2" }, { "created": "Thu, 29 May 2008 21:41:04 GMT", "version": "v3" }, { "created": "Mon, 4 Aug 2008 21:13:14 GMT", "version": "v4" } ]
2008-11-26
[ [ "Chung", "Suh-Urk", "" ], [ "Friedrich", "Jan", "" ] ]
We have worked out covariant amplitudes for any two-body decay of a resonance with an arbitrary non-zero mass, which involves arbitrary integer spins in the initial and the final states. One key new ingredient for this work is the application of the total intrinsic spin operator $\vec S$ which is given directly in term...
1101.3072
Marcus Bluhm
M. Bluhm (SUBATECH, Nantes and CERN), B. Kampfer (Helmholtz-Zentrum Dresden-Rossendorf and Dresden, Tech. U.), K. Redlich (Wroclaw U. and CERN)
Ratio of bulk to shear viscosity in a quasigluon plasma: from weak to strong coupling
Jan 2012. 13 pages, 3 figures - Revised journal version
null
10.1016/j.physletb.2012.01.069
null
hep-ph hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The ratio of bulk to shear viscosity is expected to exhibit a different behaviour in weakly and in strongly coupled systems. This can be expressed by its dependence on the squared sound velocity. In the high temperature QCD plasma at small running coupling, the viscosity ratio is uniquely determined by a quadratic de...
[ { "created": "Sun, 16 Jan 2011 13:41:20 GMT", "version": "v1" }, { "created": "Wed, 19 Sep 2012 16:45:34 GMT", "version": "v2" } ]
2015-05-27
[ [ "Bluhm", "M.", "", "SUBATECH, Nantes and CERN" ], [ "Kampfer", "B.", "", "Helmholtz-Zentrum\n Dresden-Rossendorf and Dresden, Tech. U." ], [ "Redlich", "K.", "", "Wroclaw U. and CERN" ] ]
The ratio of bulk to shear viscosity is expected to exhibit a different behaviour in weakly and in strongly coupled systems. This can be expressed by its dependence on the squared sound velocity. In the high temperature QCD plasma at small running coupling, the viscosity ratio is uniquely determined by a quadratic depe...
hep-ph/0001038
Carlo Ewerz
Carlo Ewerz
Gribov's Equation for the Green Function of Light Quarks
30 pages, 18 figures
Eur.Phys.J.C13:503-518,2000
10.1007/s100520050713
Cavendish-HEP-99/11, DAMTP-1999-148
hep-ph
null
Gribov's scenario of supercritical charges in QCD is investigated. We perform a numerical study of the corresponding equation for the Green function of light quarks. This is done in an approximation which neglects all pion contributions. Different types of solutions in the Euclidean region are discussed and the mass ...
[ { "created": "Wed, 5 Jan 2000 17:21:43 GMT", "version": "v1" } ]
2011-09-13
[ [ "Ewerz", "Carlo", "" ] ]
Gribov's scenario of supercritical charges in QCD is investigated. We perform a numerical study of the corresponding equation for the Green function of light quarks. This is done in an approximation which neglects all pion contributions. Different types of solutions in the Euclidean region are discussed and the mass fu...
1403.8048
Paul Archer
Paul R. Archer
Fine Tuning in the Holographic Minimal Composite Higgs Model
19 pages plus appendices and references, 13 figures, v2: a few references added
null
null
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the minimal composite Higgs model (MCHM), the size of the Higgs mass and vacuum expectation value is determined, via the Higgs potential, by the size of operators that violate the global SO(5) symmetry. In 5D holographic realisations of this model, this translates into the inclusion of brane localised operators. H...
[ { "created": "Mon, 31 Mar 2014 15:31:04 GMT", "version": "v1" }, { "created": "Mon, 14 Apr 2014 15:52:01 GMT", "version": "v2" } ]
2014-04-15
[ [ "Archer", "Paul R.", "" ] ]
In the minimal composite Higgs model (MCHM), the size of the Higgs mass and vacuum expectation value is determined, via the Higgs potential, by the size of operators that violate the global SO(5) symmetry. In 5D holographic realisations of this model, this translates into the inclusion of brane localised operators. How...
0812.3238
Heribert Weigert
Yuri V. Kovchegov, Janne Kuokkanen, Kari Rummukainen and Heribert Weigert
Subleading-N_c corrections in non-linear small-x evolution
discussion of phase space regions streamlined, version to be published in NPA
Nucl.Phys.A823:47-82,2009
10.1016/j.nuclphysa.2009.03.006
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore the subleading-N_c corrections to the large-N_c Balitsky-Kovchegov (BK) evolution equation by comparing its solution to that of the all-N_c Jalilian-Marian-Iancu-McLerran-Weigert-Leonidov-Kovner (JIMWLK) equation. In earlier simulations it was observed that the difference between the solutions of JIMWLK an...
[ { "created": "Wed, 17 Dec 2008 10:29:34 GMT", "version": "v1" }, { "created": "Tue, 7 Apr 2009 08:23:21 GMT", "version": "v2" } ]
2009-11-19
[ [ "Kovchegov", "Yuri V.", "" ], [ "Kuokkanen", "Janne", "" ], [ "Rummukainen", "Kari", "" ], [ "Weigert", "Heribert", "" ] ]
We explore the subleading-N_c corrections to the large-N_c Balitsky-Kovchegov (BK) evolution equation by comparing its solution to that of the all-N_c Jalilian-Marian-Iancu-McLerran-Weigert-Leonidov-Kovner (JIMWLK) equation. In earlier simulations it was observed that the difference between the solutions of JIMWLK and ...
2403.11934
Hamza Kheddar
Hamza Kheddar, Yassine Himeur, Abbes Amira, Rachik Soualah
Image Classification in High-Energy Physics: A Comprehensive Survey of Applications to Jet Analysis
null
null
null
null
hep-ph cs.CV eess.IV hep-ex
http://creativecommons.org/licenses/by/4.0/
Nowadays, there has been a growing trend in the fields of high-energy physics (HEP) in its both parts experimental and phenomenological studies, to incorporate machine learning (ML) and its specialized branch, deep learning (DL). This review paper provides a thorough illustration of these applications using different...
[ { "created": "Mon, 18 Mar 2024 16:33:29 GMT", "version": "v1" }, { "created": "Thu, 23 May 2024 17:06:42 GMT", "version": "v2" } ]
2024-05-24
[ [ "Kheddar", "Hamza", "" ], [ "Himeur", "Yassine", "" ], [ "Amira", "Abbes", "" ], [ "Soualah", "Rachik", "" ] ]
Nowadays, there has been a growing trend in the fields of high-energy physics (HEP) in its both parts experimental and phenomenological studies, to incorporate machine learning (ML) and its specialized branch, deep learning (DL). This review paper provides a thorough illustration of these applications using different D...
hep-ph/0106068
Erhan Iltan
E. O. Iltan (METU, Ankara), I. Turan (METU,Ankara)
Lepton flavor violating $Z\to l_1^+ l_2^-$ decay in the general two Higgs Doublet model
9 pages, 8 Figures
Phys.Rev. D65 (2002) 013001
10.1103/PhysRevD.65.013001
null
hep-ph
null
We calculate lepton flavor violating Z -> l^+ l^- decay in the framework of the general two Higgs Doublet model. In our calculations we used the constraints for the Yukawa couplings \bar{\xi}^{D}_{N,\tau e} and \bar{\xi}^{D}_{N,\tau\mu} coming from the experimental result of muon electric dipole moment and upper limi...
[ { "created": "Wed, 6 Jun 2001 15:20:16 GMT", "version": "v1" }, { "created": "Fri, 21 Sep 2001 11:48:28 GMT", "version": "v2" } ]
2009-11-07
[ [ "Iltan", "E. O.", "", "METU, Ankara" ], [ "Turan", "I.", "", "METU,Ankara" ] ]
We calculate lepton flavor violating Z -> l^+ l^- decay in the framework of the general two Higgs Doublet model. In our calculations we used the constraints for the Yukawa couplings \bar{\xi}^{D}_{N,\tau e} and \bar{\xi}^{D}_{N,\tau\mu} coming from the experimental result of muon electric dipole moment and upper limit ...
2312.08266
Masaru Hongo
Yoshimasa Hidaka, Masaru Hongo, Mikhail Stephanov, Ho-Ung Yee
Spin relaxation rate for baryons in thermal pion gas
16 pages, 8 figures
null
null
RIKEN-iTHEMS-Report-23, KEK-TH-2565, J-PARC-TH-0294
hep-ph hep-th nucl-th
http://creativecommons.org/licenses/by/4.0/
We study the relaxation dynamics of the spin polarization of baryons (nucleon and $\Lambda$-baryon), in a thermal pion gas as a simple model of the hadronic phase of the QCD plasma produced in relativistic heavy-ion collisions. For this purpose, we formulate the quantum kinetic theory for the spin density matrix of b...
[ { "created": "Wed, 13 Dec 2023 16:28:53 GMT", "version": "v1" } ]
2023-12-14
[ [ "Hidaka", "Yoshimasa", "" ], [ "Hongo", "Masaru", "" ], [ "Stephanov", "Mikhail", "" ], [ "Yee", "Ho-Ung", "" ] ]
We study the relaxation dynamics of the spin polarization of baryons (nucleon and $\Lambda$-baryon), in a thermal pion gas as a simple model of the hadronic phase of the QCD plasma produced in relativistic heavy-ion collisions. For this purpose, we formulate the quantum kinetic theory for the spin density matrix of bar...
hep-ph/9907318
null
Mar Bastero-Gil and Biswajoy Brahmachari
Semi-perturbative unification with extra vector-like families
LaTeX, 38 pages and 7 eps figures. Many revisions included
Nucl.Phys. B575 (2000) 35-60
10.1016/S0550-3213(00)00069-9
IUHET-415
hep-ph
null
We make a comprehensive analysis of an extended supersymmetric model(ESSM) obtained by adding a pair of vector-like families to the minimal supersymmetric standard model and having specific forms of 5 x 5 fermion mass matrices. The singlet Higgs couplings which link the ordinary to vector-like generations do not have...
[ { "created": "Mon, 12 Jul 1999 22:21:02 GMT", "version": "v1" }, { "created": "Thu, 18 Nov 1999 18:22:34 GMT", "version": "v2" } ]
2009-10-31
[ [ "Bastero-Gil", "Mar", "" ], [ "Brahmachari", "Biswajoy", "" ] ]
We make a comprehensive analysis of an extended supersymmetric model(ESSM) obtained by adding a pair of vector-like families to the minimal supersymmetric standard model and having specific forms of 5 x 5 fermion mass matrices. The singlet Higgs couplings which link the ordinary to vector-like generations do not have t...
1611.08063
Chien Yeah Seng
Chien-Yeah Seng, Michael Ramsey-Musolf
Parity- and Time Reversal-Violating Pion Nucleon Couplings: Higher Order Chiral Matching Relations
50 pages, 2 figures, 4 tables
Phys. Rev. C 96, 065204 (2017)
10.1103/PhysRevC.96.065204
ACFI-T16-28
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Parity- and time reversal-violating (PVTV) pion-nucleon couplings govern the magnitude of long-range contributions to nucleon and atomic electric dipole moments. When these couplings arise from chiral symmetry-breaking CP-violating operators, such as the QCD $\theta$-term or quark chromoelectric dipole moments, one m...
[ { "created": "Thu, 24 Nov 2016 03:58:39 GMT", "version": "v1" }, { "created": "Mon, 11 Dec 2017 13:11:36 GMT", "version": "v2" } ]
2017-12-27
[ [ "Seng", "Chien-Yeah", "" ], [ "Ramsey-Musolf", "Michael", "" ] ]
Parity- and time reversal-violating (PVTV) pion-nucleon couplings govern the magnitude of long-range contributions to nucleon and atomic electric dipole moments. When these couplings arise from chiral symmetry-breaking CP-violating operators, such as the QCD $\theta$-term or quark chromoelectric dipole moments, one may...
hep-ph/0003160
K. Zuber
K. Zuber
New limits on effective Majorana neutrino masses from rare kaon decays
7 pages, 3 eps-figures, to be published in Phys. Lett. B
Phys.Lett. B479 (2000) 33-36
10.1016/S0370-2693(00)00333-6
null
hep-ph
null
The rare kaon decay $K^+ \ra \pi^- \mu^+ \mu^+$ is violating lepton number by two units and is investigated within the context of Majorana neutrino masses. Using a new upper bound for this decay from E865 an upper limit on the effective Majorana mass term $\m_{\mu \mu} < 500$ GeV could be obtained. This is improving ...
[ { "created": "Thu, 16 Mar 2000 12:57:11 GMT", "version": "v1" } ]
2009-10-31
[ [ "Zuber", "K.", "" ] ]
The rare kaon decay $K^+ \ra \pi^- \mu^+ \mu^+$ is violating lepton number by two units and is investigated within the context of Majorana neutrino masses. Using a new upper bound for this decay from E865 an upper limit on the effective Majorana mass term $\m_{\mu \mu} < 500$ GeV could be obtained. This is improving ex...
hep-ph/0412151
Mihai L. Ion
D. B. Ion (1 and 3) and M. L. Ion (2) ((1) NIPNE-HH, Bucharest, (2) University of Bucharest, (3) TH Division, CERN)
Super-Cerenkov Radiation: A new phenomenon useful for RICH Detectors
9 pages, 7 figures
Rom.J.Phys.51:867-882,2006
null
null
hep-ph
null
In this contribution the Super-Cerenkov radiation (SCR) as a new phenomenon which includes in a more general and exact form the usual Cerenkov effect is presented. The Super-Cerenkov effect at Cerenkov threshold in the radiators of RICH detectors is investigated. The results on the experimental test of the super- Cer...
[ { "created": "Sat, 11 Dec 2004 13:33:27 GMT", "version": "v1" } ]
2011-07-19
[ [ "Ion", "D. B.", "", "1 and 3" ], [ "Ion", "M. L.", "" ] ]
In this contribution the Super-Cerenkov radiation (SCR) as a new phenomenon which includes in a more general and exact form the usual Cerenkov effect is presented. The Super-Cerenkov effect at Cerenkov threshold in the radiators of RICH detectors is investigated. The results on the experimental test of the super- Ceren...
1211.0461
Kari J. Eskola
R. Paatelainen, K. J. Eskola, H. Holopainen, and K. Tuominen
Multiplicities and $p_T$ spectra in ultrarelativistic heavy ion collisions from a next-to-leading order improved perturbative QCD + saturation + hydrodynamics model
12 pages, 5 figures
null
10.1103/PhysRevC.87.044904
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We bring the EKRT framework, which combines perturbative QCD (pQCD) minijet production with gluon saturation and hydrodynamics, to next-to-leading order (NLO) in pQCD as rigorously as possible. We chart the model uncertainties, and study the viability and predictive power of the model in the light of the RHIC and LHC...
[ { "created": "Fri, 2 Nov 2012 14:40:31 GMT", "version": "v1" } ]
2013-04-17
[ [ "Paatelainen", "R.", "" ], [ "Eskola", "K. J.", "" ], [ "Holopainen", "H.", "" ], [ "Tuominen", "K.", "" ] ]
We bring the EKRT framework, which combines perturbative QCD (pQCD) minijet production with gluon saturation and hydrodynamics, to next-to-leading order (NLO) in pQCD as rigorously as possible. We chart the model uncertainties, and study the viability and predictive power of the model in the light of the RHIC and LHC m...
1201.1534
C. Q. Geng
Chao-Qiang Geng and Ryo Takahashi
Magnetic dipole moment and keV neutrino dark matter
11 pages, no figure, revised version accepted by PLB
null
10.1016/j.physletb.2012.02.080
null
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study magnetic dipole moments of right-handed neutrinos in a keV neutrino dark matter model. This model is a simple extension of the standard model with only right-handed neutrinos and a pair of charged particles added. One of the right-handed neutrinos is the candidate of dark matter with a keV mass. Some bounds ...
[ { "created": "Sat, 7 Jan 2012 07:41:25 GMT", "version": "v1" }, { "created": "Fri, 24 Feb 2012 12:17:46 GMT", "version": "v2" } ]
2015-06-03
[ [ "Geng", "Chao-Qiang", "" ], [ "Takahashi", "Ryo", "" ] ]
We study magnetic dipole moments of right-handed neutrinos in a keV neutrino dark matter model. This model is a simple extension of the standard model with only right-handed neutrinos and a pair of charged particles added. One of the right-handed neutrinos is the candidate of dark matter with a keV mass. Some bounds on...
hep-ph/0306093
Tetsuo Shindou
Toru Goto, Yasuhiro Okada, Yasuhiro Shimizu, Tetsuo Shindou, Minoru Tanaka
Exploring flavor structure of supersymmetry breaking from rare B decays and unitarity triangle
revtex4, 36 pages, 10 figures
Phys.Rev.D70:035012,2004
10.1103/PhysRevD.70.035012
OU-HET 443, KEK-TH-885, DPNU-03-14
hep-ph
null
We study effects of supersymmetric particles in various rare B decay processes as well as in the unitarity triangle analysis. We consider three different supersymmetric models, the minimal supergravity, SU(5) SUSY GUT with right-handed neutrinos, and the minimal supersymmetric standard model with U(2) flavor symmetry...
[ { "created": "Wed, 11 Jun 2003 13:08:00 GMT", "version": "v1" }, { "created": "Mon, 8 Dec 2003 13:39:00 GMT", "version": "v2" } ]
2014-11-17
[ [ "Goto", "Toru", "" ], [ "Okada", "Yasuhiro", "" ], [ "Shimizu", "Yasuhiro", "" ], [ "Shindou", "Tetsuo", "" ], [ "Tanaka", "Minoru", "" ] ]
We study effects of supersymmetric particles in various rare B decay processes as well as in the unitarity triangle analysis. We consider three different supersymmetric models, the minimal supergravity, SU(5) SUSY GUT with right-handed neutrinos, and the minimal supersymmetric standard model with U(2) flavor symmetry. ...
1807.03310
Emanuele Roberto Nocera
The NNPDF Collaboration: Valerio Bertone, Nathan P. Hartland, Emanuele R. Nocera, Juan Rojo and Luca Rottoli
Charged hadron fragmentation functions from collider data
11 pages, 8 figures, 3 tables, final version accepted for publication in EPJC - added a reference ([40]) to validphys
null
null
NIKHEF-2018-027, OUTP-18-01P
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present NNFF1.1h, a new determination of unidentified charged-hadron fragmentation functions (FFs) and their uncertainties. Experimental measurements of transverse-momentum distributions for charged-hadron production in proton-(anti)proton collisions at the Tevatron and at the LHC are used to constrain a set of FF...
[ { "created": "Mon, 9 Jul 2018 18:00:02 GMT", "version": "v1" }, { "created": "Wed, 15 Aug 2018 21:49:33 GMT", "version": "v2" }, { "created": "Thu, 21 Feb 2019 15:16:10 GMT", "version": "v3" } ]
2019-02-22
[ [ "The NNPDF Collaboration", "", "" ], [ "Bertone", "Valerio", "" ], [ "Hartland", "Nathan P.", "" ], [ "Nocera", "Emanuele R.", "" ], [ "Rojo", "Juan", "" ], [ "Rottoli", "Luca", "" ] ]
We present NNFF1.1h, a new determination of unidentified charged-hadron fragmentation functions (FFs) and their uncertainties. Experimental measurements of transverse-momentum distributions for charged-hadron production in proton-(anti)proton collisions at the Tevatron and at the LHC are used to constrain a set of FFs ...
2002.03524
Henry Diaz
Henry Diaz, E. Castillo-Ruiz, O. P. Ravinez and V. Pleitez
Explicit parity violation in $SU(2)_L\otimes SU(2)_R\otimes U(1)_{B-L}$ models
20 pages, 4 figures, we are replacing the previous version of our article Explicit parity violation in $SU(2)_L\otimes SU(2)_R\otimes U(1)_{B-L}$ models. This new version has already been published in the Journal of Physics G: Nuclear and Particle Physics
null
10.1088/1361-6471/abf9f2
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Here we propose models with $SU(2)_L\otimes SU(2)_R\otimes U(1)_{B-L}$ electroweak gauge symmetry in which parity (or charge conjugation) is broken explicitly and the interactions of left- and right-handed fermions are completely different from each other at any energy scale. In these sort of models there is no resto...
[ { "created": "Mon, 10 Feb 2020 03:33:55 GMT", "version": "v1" }, { "created": "Sun, 22 Mar 2020 17:19:04 GMT", "version": "v2" }, { "created": "Thu, 15 Oct 2020 06:22:03 GMT", "version": "v3" }, { "created": "Thu, 26 Nov 2020 07:54:48 GMT", "version": "v4" }, { "c...
2021-08-11
[ [ "Diaz", "Henry", "" ], [ "Castillo-Ruiz", "E.", "" ], [ "Ravinez", "O. P.", "" ], [ "Pleitez", "V.", "" ] ]
Here we propose models with $SU(2)_L\otimes SU(2)_R\otimes U(1)_{B-L}$ electroweak gauge symmetry in which parity (or charge conjugation) is broken explicitly and the interactions of left- and right-handed fermions are completely different from each other at any energy scale. In these sort of models there is no restora...
2006.04780
Alexander Bogatskiy
Alexander Bogatskiy, Brandon Anderson, Jan T. Offermann, Marwah Roussi, David W. Miller, Risi Kondor
Lorentz Group Equivariant Neural Network for Particle Physics
null
null
null
null
hep-ph cs.LG hep-ex physics.comp-ph stat.ML
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a neural network architecture that is fully equivariant with respect to transformations under the Lorentz group, a fundamental symmetry of space and time in physics. The architecture is based on the theory of the finite-dimensional representations of the Lorentz group and the equivariant nonlinearity invol...
[ { "created": "Mon, 8 Jun 2020 17:54:43 GMT", "version": "v1" } ]
2020-06-09
[ [ "Bogatskiy", "Alexander", "" ], [ "Anderson", "Brandon", "" ], [ "Offermann", "Jan T.", "" ], [ "Roussi", "Marwah", "" ], [ "Miller", "David W.", "" ], [ "Kondor", "Risi", "" ] ]
We present a neural network architecture that is fully equivariant with respect to transformations under the Lorentz group, a fundamental symmetry of space and time in physics. The architecture is based on the theory of the finite-dimensional representations of the Lorentz group and the equivariant nonlinearity involve...
1712.04721
Axel Maas
Axel Maas
Brout-Englert-Higgs physics: From foundations to phenomenology
116 pages, 19 figures, 1 table, v4: change of layout, added fully worked examples of gauge-invariant perturbation theory, other minor changes, version to appear in Prog. Part. Nucl. Phys. v3: added section on LSZ and asymptotic states, several minor changes, addition of references and further FAQs; v2: some add...
Progress in Particle and Nuclear Physics Volume 106, May 2019, Pages 132-209
10.1016/j.ppnp.2019.02.003
null
hep-ph hep-ex hep-lat hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The aim of this review is to describe the field-theoretical foundations of Brout-Englert-Higgs (BEH) physics, and to show how the usual phenomenology arises from it. This requires to give a precise and gauge-invariant meaning to the underlying physics. This is complicated by the fact that concepts like the Higgs vacu...
[ { "created": "Wed, 13 Dec 2017 12:01:29 GMT", "version": "v1" }, { "created": "Tue, 25 Sep 2018 13:44:43 GMT", "version": "v2" }, { "created": "Tue, 13 Nov 2018 13:05:28 GMT", "version": "v3" }, { "created": "Mon, 11 Feb 2019 08:12:34 GMT", "version": "v4" } ]
2019-04-17
[ [ "Maas", "Axel", "" ] ]
The aim of this review is to describe the field-theoretical foundations of Brout-Englert-Higgs (BEH) physics, and to show how the usual phenomenology arises from it. This requires to give a precise and gauge-invariant meaning to the underlying physics. This is complicated by the fact that concepts like the Higgs vacuum...
hep-ph/9701233
Chung-Yi Wu
Tsung-Wen Yeh and Hsiang-nan Li
Factorization theorems, effective field theory, and nonleptonic heavy meson decays
39 pages, latex, 5 figures, revised version with some corrections
Phys.Rev. D56 (1997) 1615-1631
10.1103/PhysRevD.56.1615
CCUTH-96-07
hep-ph
null
The nonleptonic heavy meson decays $B\to D^{(*)}\pi(\rho), J/\psi K^{(*)}$ and $D\to K^{(*)}\pi$ are studied based on the three-scale perturbative QCD factorization theorem developed recently. In this formalism the Bauer-Stech-Wirbel parameters a_1 and a_2 are treated as the Wilson coefficients, whose evolution from ...
[ { "created": "Tue, 7 Jan 1997 12:02:34 GMT", "version": "v1" }, { "created": "Mon, 27 Jan 1997 22:48:27 GMT", "version": "v2" } ]
2009-10-30
[ [ "Yeh", "Tsung-Wen", "" ], [ "Li", "Hsiang-nan", "" ] ]
The nonleptonic heavy meson decays $B\to D^{(*)}\pi(\rho), J/\psi K^{(*)}$ and $D\to K^{(*)}\pi$ are studied based on the three-scale perturbative QCD factorization theorem developed recently. In this formalism the Bauer-Stech-Wirbel parameters a_1 and a_2 are treated as the Wilson coefficients, whose evolution from th...
hep-ph/9407299
Miao Li
Miao Li and Chung-I Tan
High energy Scattering in 2+1 QCD: A Dipole Picture
minor typos corrected. Postscript files are available through anonymous ftp quark.het.brown.edu, in the directory /pub/preprints, file name is 9407299. Hard copy is available upon request
Phys. Rev. D 51, 3287 (1995)
10.1103/PhysRevD.51.3287
null
hep-ph hep-th
null
A dipole picture of high energy scattering is developed in the 2+1 dimensional QCD, following Mueller. A generalized integral equation for the dipole density with a given separation and center of mass position is derived, and meson-meson non-forward scattering amplitude is therefore calculated. We also calculate the ...
[ { "created": "Thu, 14 Jul 1994 21:27:02 GMT", "version": "v1" }, { "created": "Fri, 15 Jul 1994 20:17:28 GMT", "version": "v2" }, { "created": "Tue, 19 Jul 1994 23:49:02 GMT", "version": "v3" } ]
2016-08-24
[ [ "Li", "Miao", "" ], [ "Tan", "Chung-I", "" ] ]
A dipole picture of high energy scattering is developed in the 2+1 dimensional QCD, following Mueller. A generalized integral equation for the dipole density with a given separation and center of mass position is derived, and meson-meson non-forward scattering amplitude is therefore calculated. We also calculate the am...
hep-ph/9501311
M. McDermott
M.F. McDermott, J.R. Forshaw and G.G.Ross
An analytic solution of the BFKL equation with momentum cutoffs
14 pages, Latex, no figures
Phys.Lett.B349:189-196,1995
10.1016/0370-2693(95)00233-B
OUTP 94-38P, RAL-95-002, CERN-TH.7552/95
hep-ph
null
We outline a general method for obtaining the solution to the ($t=0$) BFKL equation in the presence of transverse momentum cutoffs. A lower cutoff allows one to avoid integration over nonperturbative momenta and an upper one is needed from energy-momentum conservation. Our method allows for the inclusion of an arbitr...
[ { "created": "Mon, 16 Jan 1995 21:56:42 GMT", "version": "v1" } ]
2016-09-01
[ [ "McDermott", "M. F.", "" ], [ "Forshaw", "J. R.", "" ], [ "Ross", "G. G.", "" ] ]
We outline a general method for obtaining the solution to the ($t=0$) BFKL equation in the presence of transverse momentum cutoffs. A lower cutoff allows one to avoid integration over nonperturbative momenta and an upper one is needed from energy-momentum conservation. Our method allows for the inclusion of an arbitrar...
hep-ph/9305303
null
Achilles D. Speliotopoulos
The Asymptotic Form of the Energy Density of Weakly Interacting Particles in a Static, Spherical Geometry
PlainTex, 12pages
null
null
IP-ASTP-19-93
hep-ph astro-ph gr-qc
null
The asymptotic form of the energy density for a gas of particles surrounding a sphere of mass $M$ and radius $R$ is studied using Einstein's equations. It is shown that if the pressure of the gas $p$ varies linearly with the energy density $\rho$ for small $\rho$, then $\rho\sim 1/r^2$ for large $r$.
[ { "created": "Mon, 24 May 1993 18:57:00 GMT", "version": "v1" } ]
2007-05-23
[ [ "Speliotopoulos", "Achilles D.", "" ] ]
The asymptotic form of the energy density for a gas of particles surrounding a sphere of mass $M$ and radius $R$ is studied using Einstein's equations. It is shown that if the pressure of the gas $p$ varies linearly with the energy density $\rho$ for small $\rho$, then $\rho\sim 1/r^2$ for large $r$.
1602.02356
Wolfgang Lucha
Wolfgang Lucha, Franz F. Sch\"oberl
Analytic Bethe-Salpeter Description of the Lightest Pseudoscalar Mesons
15 pages, 6 figures
Phys. Rev. D 93, 056006 (2016)
10.1103/PhysRevD.93.056006
HEPHY-PUB 957/16
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Within the Bethe-Salpeter formalism for instantaneous interactions, we describe, along a totally analytic route, the lightest pseudoscalar mesons by quark-antiquark bound states which show at least three indispensable general features, namely, the (almost) masslessness required for pions and kaons to be interpretable...
[ { "created": "Sun, 7 Feb 2016 10:45:44 GMT", "version": "v1" }, { "created": "Mon, 29 Feb 2016 09:13:14 GMT", "version": "v2" } ]
2016-03-18
[ [ "Lucha", "Wolfgang", "" ], [ "Schöberl", "Franz F.", "" ] ]
Within the Bethe-Salpeter formalism for instantaneous interactions, we describe, along a totally analytic route, the lightest pseudoscalar mesons by quark-antiquark bound states which show at least three indispensable general features, namely, the (almost) masslessness required for pions and kaons to be interpretable a...
1807.10039
Apriadi Salim Adam
Takuya Morozumi (Hiroshima-U), Keiko I. Nagao (Okayama University of Science), Apriadi Salim Adam (Hiroshima-U) and Hiroyuki Takata (TSPU)
Generation of particle number asymmetry in expanding universe
5 pages, 2 figures, contributed talk at 1st Workshop on Phenomenology for Particle and Anti-Particle 2018, minor modification
Soryushiron Kenkyu 28 (2019) no.3, 14-18
null
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study creation and time evolution of particle number asymmetry with nonequilibrium quantum field theory. We introduce a model of a neutral scalar and a complex scalar and it has CP violating and particle number violating features. Starting with an initial condition specified by density operator, we show how partic...
[ { "created": "Thu, 26 Jul 2018 09:49:46 GMT", "version": "v1" }, { "created": "Mon, 8 Apr 2019 05:48:24 GMT", "version": "v2" } ]
2019-04-11
[ [ "Morozumi", "Takuya", "", "Hiroshima-U" ], [ "Nagao", "Keiko I.", "", "Okayama University of\n Science" ], [ "Adam", "Apriadi Salim", "", "Hiroshima-U" ], [ "Takata", "Hiroyuki", "", "TSPU" ] ]
We study creation and time evolution of particle number asymmetry with nonequilibrium quantum field theory. We introduce a model of a neutral scalar and a complex scalar and it has CP violating and particle number violating features. Starting with an initial condition specified by density operator, we show how particle...
1512.06560
Bin Zhu
Ran Ding, Li Huang, Tianjun Li, Bin Zhu
Interpreting $750$ GeV Diphoton Excess with R-parity Violating Supersymmetry
Revised version, updated figures, clarified statements, added discussions on low-energy and LHC constraints
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose an supersymmetric explanation of the diphoton excess in the Minimal Supersymmetric Standard Model with the leptonic R-parity violation. Where the sneutrino serves as the 750 GeV resonance and produced through quark anti-quark annihilation. With introducing appropriate trilinear soft parameters, we show tha...
[ { "created": "Mon, 21 Dec 2015 10:10:30 GMT", "version": "v1" }, { "created": "Fri, 20 May 2016 08:11:17 GMT", "version": "v2" } ]
2016-05-23
[ [ "Ding", "Ran", "" ], [ "Huang", "Li", "" ], [ "Li", "Tianjun", "" ], [ "Zhu", "Bin", "" ] ]
We propose an supersymmetric explanation of the diphoton excess in the Minimal Supersymmetric Standard Model with the leptonic R-parity violation. Where the sneutrino serves as the 750 GeV resonance and produced through quark anti-quark annihilation. With introducing appropriate trilinear soft parameters, we show that ...
1112.5631
Keith R. Dienes
Sky Bauman, Keith R. Dienes
Kaluza-Klein Masses and Couplings: Radiative Corrections to Tree-Level Relations
34 pages, LaTeX, 12 figures
null
10.1103/PhysRevD.85.125011
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The most direct experimental signature of a compactified extra dimension is the appearance of towers of Kaluza-Klein particles obeying specific mass and coupling relations. However, such masses and couplings are subject to radiative corrections. In this paper, using techniques developed in previous work, we investiga...
[ { "created": "Fri, 23 Dec 2011 18:30:43 GMT", "version": "v1" } ]
2013-05-30
[ [ "Bauman", "Sky", "" ], [ "Dienes", "Keith R.", "" ] ]
The most direct experimental signature of a compactified extra dimension is the appearance of towers of Kaluza-Klein particles obeying specific mass and coupling relations. However, such masses and couplings are subject to radiative corrections. In this paper, using techniques developed in previous work, we investigate...