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hep-ph/0001278
Carimalo
N. Arteaga-Romero, C. Carimalo, V. G. Serbo
Production of bound triplet $\mu^{+} \mu^{-}$ system in collisions of electrons with atoms
Revtex style, 10 pages, 5 postscript figures
Phys.Rev. A62 (2000) 032501
10.1103/PhysRevA.62.032501
null
hep-ph
null
This paper deals with the production of orthodimuonium (OM) ($\mu^{+} \mu^{-}$ atom in triplet state) in collisions of high-energy electrons with nuclei or atoms. This reaction was previously studied by Holvik and Olsen [Phys. Rev. D 35, 2124 (1987)] on the basis of a bremsstrahlung mechanism where OM is produced by ...
[ { "created": "Thu, 27 Jan 2000 15:15:16 GMT", "version": "v1" } ]
2019-08-17
[ [ "Arteaga-Romero", "N.", "" ], [ "Carimalo", "C.", "" ], [ "Serbo", "V. G.", "" ] ]
This paper deals with the production of orthodimuonium (OM) ($\mu^{+} \mu^{-}$ atom in triplet state) in collisions of high-energy electrons with nuclei or atoms. This reaction was previously studied by Holvik and Olsen [Phys. Rev. D 35, 2124 (1987)] on the basis of a bremsstrahlung mechanism where OM is produced by on...
hep-ph/9406229
null
N.N.Nikolaev, B.G.Zakharov and V.R.Zoller
Why more hadronlike photons produce less particles on nuclear targets
28 pages, 7 figures (to be requested from kph154@zam001.zam.kfa-juelich.de), Juelich preprint KFA-IKP(TH)-1994-13
null
null
null
hep-ph nucl-th
null
In hadron-nucleus interactions, the stronger is nuclear shadowing in the total cross section the higher is the multiplicity of secondary hadrons. In deep inelastic scattering, nuclear shadowing at small $x$ is associated with the hadronlike behaviour of photons as contrasted to the pointlike behaviour in the non-shad...
[ { "created": "Sun, 5 Jun 1994 19:21:18 GMT", "version": "v1" } ]
2009-09-25
[ [ "Nikolaev", "N. N.", "" ], [ "Zakharov", "B. G.", "" ], [ "Zoller", "V. R.", "" ] ]
In hadron-nucleus interactions, the stronger is nuclear shadowing in the total cross section the higher is the multiplicity of secondary hadrons. In deep inelastic scattering, nuclear shadowing at small $x$ is associated with the hadronlike behaviour of photons as contrasted to the pointlike behaviour in the non-shadow...
1909.01213
Domagoj Leljak
Domagoj Leljak, Blazenka Melic
$|V_{ub}|$ determination and testing of lepton flavour universality in semileptonic $B_c \rightarrow D^{(\ast)}$ decays
46 pages, 13 figures, published version. Some clarifications of the method are given. New subsection 2.2 on the discussion of correlations between the pseudo-data points and on the error budget of the results is inserted. Additional references added
null
10.1007/JHEP02(2020)171
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In light of prospects for measurements of $B_c \rightarrow D^{(\ast)} l \nu$ decays in the upcoming Upgrade II of the LHC, we show that by using calculated $B_c \rightarrow D^{(\ast)}$ form factors competitive extraction of the $|V_{ub}|$ CKM matrix element from the $B_c \to D \mu \bar{\nu}_{\mu}$ decay might be poss...
[ { "created": "Tue, 3 Sep 2019 14:29:57 GMT", "version": "v1" }, { "created": "Wed, 4 Sep 2019 09:26:33 GMT", "version": "v2" }, { "created": "Fri, 21 Feb 2020 12:55:49 GMT", "version": "v3" } ]
2020-03-18
[ [ "Leljak", "Domagoj", "" ], [ "Melic", "Blazenka", "" ] ]
In light of prospects for measurements of $B_c \rightarrow D^{(\ast)} l \nu$ decays in the upcoming Upgrade II of the LHC, we show that by using calculated $B_c \rightarrow D^{(\ast)}$ form factors competitive extraction of the $|V_{ub}|$ CKM matrix element from the $B_c \to D \mu \bar{\nu}_{\mu}$ decay might be possib...
hep-ph/0212167
Renard Fernand Michel
M. Beccaria, F.M. Renard, S. Trimarchi and C. Verzegnassi
Charged Higgs Production in the 1 TeV Domain as a Probe of Supersymmetric Models
18 pages and 13 figures e-mail: renard@lpm.univ-montp2.fr
Phys.Rev. D68 (2003) 035014
10.1103/PhysRevD.68.035014
PM/02-54
hep-ph
null
We consider the production, at future lepton colliders, of charged Higgs pairs in supersymmetric models. Assuming a relatively light SUSY scenario, and working in the MSSM, we show that, for c.m. energies in the one TeV range, a one-loop logarithmic Sudakov expansion that includes an "effective" next-to subleading or...
[ { "created": "Thu, 12 Dec 2002 07:09:18 GMT", "version": "v1" } ]
2009-11-07
[ [ "Beccaria", "M.", "" ], [ "Renard", "F. M.", "" ], [ "Trimarchi", "S.", "" ], [ "Verzegnassi", "C.", "" ] ]
We consider the production, at future lepton colliders, of charged Higgs pairs in supersymmetric models. Assuming a relatively light SUSY scenario, and working in the MSSM, we show that, for c.m. energies in the one TeV range, a one-loop logarithmic Sudakov expansion that includes an "effective" next-to subleading orde...
hep-ph/0305075
Danny Marfatia
V. Barger, James P. Kneller, Hye-Sung Lee, Danny Marfatia and Gary Steigman
Effective number of neutrinos and baryon asymmetry from BBN and WMAP
10 pages, 10 figures, 2 tables
Phys.Lett.B566:8-18,2003
10.1016/S0370-2693(03)00800-1
MADPH-03-1322, NSF-KITP-03-31
hep-ph astro-ph
null
We place constraints on the number of relativistic degrees of freedom and on the baryon asymmetry at the epoch of Big Bang Nucleosynthesis (BBN) and at recombination, using cosmic background radiation (CBR) data from the Wilkinson Microwave Anisotropy Probe (WMAP), complemented by the Hubble Space Telescope (HST) Key...
[ { "created": "Thu, 8 May 2003 16:52:05 GMT", "version": "v1" } ]
2008-11-26
[ [ "Barger", "V.", "" ], [ "Kneller", "James P.", "" ], [ "Lee", "Hye-Sung", "" ], [ "Marfatia", "Danny", "" ], [ "Steigman", "Gary", "" ] ]
We place constraints on the number of relativistic degrees of freedom and on the baryon asymmetry at the epoch of Big Bang Nucleosynthesis (BBN) and at recombination, using cosmic background radiation (CBR) data from the Wilkinson Microwave Anisotropy Probe (WMAP), complemented by the Hubble Space Telescope (HST) Key P...
hep-ph/0206223
Jun-ichi Kamoshita
Jun-ichi Kamoshita
Probing Noncommutative Space-Time in the Laboratory Frame
12 pages, 7 figures, typos are corrected, one graph have been added in figure 5
Eur.Phys.J.C52:451-457,2007
10.1140/epjc/s10052-007-0371-y
OCHA-PP-191
hep-ph hep-ex
null
The phenomenological investigation of noncommutative space-time in the laboratory frame are presented. We formulate the apparent time variation of noncommutativity parameter $\theta_{\mu\nu}$ in the laboratory frame due to the earth's rotation. Furthermore, in the noncommutative QED, we discuss how to probe the elect...
[ { "created": "Mon, 24 Jun 2002 12:32:19 GMT", "version": "v1" }, { "created": "Sun, 14 Jul 2002 11:50:17 GMT", "version": "v2" } ]
2016-09-06
[ [ "Kamoshita", "Jun-ichi", "" ] ]
The phenomenological investigation of noncommutative space-time in the laboratory frame are presented. We formulate the apparent time variation of noncommutativity parameter $\theta_{\mu\nu}$ in the laboratory frame due to the earth's rotation. Furthermore, in the noncommutative QED, we discuss how to probe the electri...
hep-ph/9809212
Michael Melles
Michael Melles
Analytic QCD Flavor Thresholds Through Two Loops
TALK PRESENTED AT ICHEP'98 IN VANCOUVER, CA, JULY 1998; needs style file ltwol2e.sty and latex2e
To be published in the ICHEP'98-proceedings
null
null
hep-ph
null
In this talk \footnote{Presented at ICHEP'98, Vancouver, CA, July 1998}, we present a recently suggested way on how to analytically incorporate massive threshold effects into observables calculated in massless QCD. No matching is required since the renormalization scale is in this approach connected to the physical m...
[ { "created": "Tue, 1 Sep 1998 11:51:06 GMT", "version": "v1" } ]
2007-05-23
[ [ "Melles", "Michael", "" ] ]
In this talk \footnote{Presented at ICHEP'98, Vancouver, CA, July 1998}, we present a recently suggested way on how to analytically incorporate massive threshold effects into observables calculated in massless QCD. No matching is required since the renormalization scale is in this approach connected to the physical mom...
1107.0621
Ulrich Nierste
Ulrich Nierste
Flavour physics, supersymmetry and grand unification
8 pages, talk at Moriond 2011 conference on EW Interactions and Unified Theories
null
null
TTP11-19
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A global fit to quark flavour-physics data disfavours the Standard Model with 3.6 standard deviations and points towards new CP-violating physics in meson-antimeson mixing amplitudes. Tevatron data call for a new Bs-Bs-bar mixing phase and new physics in Bd-Bd-bar mixing alleviates the tension on the unitarity triang...
[ { "created": "Mon, 4 Jul 2011 13:32:29 GMT", "version": "v1" } ]
2011-07-05
[ [ "Nierste", "Ulrich", "" ] ]
A global fit to quark flavour-physics data disfavours the Standard Model with 3.6 standard deviations and points towards new CP-violating physics in meson-antimeson mixing amplitudes. Tevatron data call for a new Bs-Bs-bar mixing phase and new physics in Bd-Bd-bar mixing alleviates the tension on the unitarity triangle...
1403.1407
Norma Susana Mankoc Borstnik
H.B.F. Nielsen
Small Representation Principle
Appeared in Proceedings to the 16th Workshop "What Comes Beyond the Standard Models?", Bled 14-21 of July 2013, Vol. 14, No. 2, DMFA Zaloznistvo, Ljubljana, Dec. 2013
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In a previous article Don Bennett and I looked for, found and proposed a game in which the Standard Model Gauge Group $S(U(2) \times U(3))$ gets singled out as the "winner". This "game" means that the by Nature chosen gauge group should be just that one, which has the maximal value for a quantity, which is a modifica...
[ { "created": "Thu, 6 Mar 2014 11:15:19 GMT", "version": "v1" } ]
2014-03-07
[ [ "Nielsen", "H. B. F.", "" ] ]
In a previous article Don Bennett and I looked for, found and proposed a game in which the Standard Model Gauge Group $S(U(2) \times U(3))$ gets singled out as the "winner". This "game" means that the by Nature chosen gauge group should be just that one, which has the maximal value for a quantity, which is a modificati...
hep-ph/0110088
Annelies Oosterhof-Meij
Wolfram Kittel
Bose-Einstein Correlations in Z Fragmentation and Other Reactions
44 pages, 1 latex, appolb.cls, 25 eps figures, Lecture given at the Cracow School of Theoretical Physics, Zakopane, 2001
Acta Phys.Polon.B32:3927-3972,2001
null
null
hep-ph
null
Recent experimental studies of Bose-Einstein Correlations in Z fragmentation are reviewed in view of the need to understand their apparent suppression for pions originating from different W's. Particular features discussed are source elongation, position-momentum correlation, non-Gaussian shape of the correlator, tra...
[ { "created": "Fri, 5 Oct 2001 15:20:45 GMT", "version": "v1" }, { "created": "Wed, 7 Nov 2001 14:42:58 GMT", "version": "v2" }, { "created": "Tue, 13 Nov 2001 09:42:09 GMT", "version": "v3" } ]
2014-11-17
[ [ "Kittel", "Wolfram", "" ] ]
Recent experimental studies of Bose-Einstein Correlations in Z fragmentation are reviewed in view of the need to understand their apparent suppression for pions originating from different W's. Particular features discussed are source elongation, position-momentum correlation, non-Gaussian shape of the correlator, trans...
1405.3850
Jennifer Girrbach-Noe
Andrzej J. Buras, Fulvia De Fazio and Jennifer Girrbach-Noe
Z-Z' Mixing and Z-Mediated FCNCs in SU(3)_C x SU(3)_L x U(1)_X Models
44 pages, 15 figures, 9 tables; clarifying comments added; version accepted for publication in JHEP
null
10.1007/JHEP08(2014)039
FLAVOUR(267104)-ERC-70, BARI-TH/14-689
hep-ph hep-ex hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Most of the existing analyses of FCNC processes in the 331 models, based on the gauge group SU(3)_C x SU(3)_L x U(1)_X, take only into account tree-level exchanges of a new heavy neutral gauge boson Z'. However due to the Z-Z' mixing also corresponding contributions from Z boson are present that are usually neglected...
[ { "created": "Thu, 15 May 2014 13:47:50 GMT", "version": "v1" }, { "created": "Thu, 31 Jul 2014 12:00:59 GMT", "version": "v2" } ]
2014-08-19
[ [ "Buras", "Andrzej J.", "" ], [ "De Fazio", "Fulvia", "" ], [ "Girrbach-Noe", "Jennifer", "" ] ]
Most of the existing analyses of FCNC processes in the 331 models, based on the gauge group SU(3)_C x SU(3)_L x U(1)_X, take only into account tree-level exchanges of a new heavy neutral gauge boson Z'. However due to the Z-Z' mixing also corresponding contributions from Z boson are present that are usually neglected. ...
hep-ph/9712353
Taekoon Lee
T.E. Clark, Taekoon Lee, S.T. Love, Guo-Hong Wu
On the Interactions of Light Gravitinos
Latex, 14 pages
Phys. Rev. D 57, 5912 (1998)
10.1103/PhysRevD.57.5912
PURD-TH-97-10
hep-ph
null
In models of spontaneously broken supersymmetry, certain light gravitino processes are governed by the coupling of its Goldstino components. The rules for constructing SUSY and gauge invariant actions involving the Goldstino couplings to matter and gauge fields are presented. The explicit operator construction is fou...
[ { "created": "Thu, 11 Dec 1997 19:15:43 GMT", "version": "v1" } ]
2016-08-25
[ [ "Clark", "T. E.", "" ], [ "Lee", "Taekoon", "" ], [ "Love", "S. T.", "" ], [ "Wu", "Guo-Hong", "" ] ]
In models of spontaneously broken supersymmetry, certain light gravitino processes are governed by the coupling of its Goldstino components. The rules for constructing SUSY and gauge invariant actions involving the Goldstino couplings to matter and gauge fields are presented. The explicit operator construction is found...
hep-ph/0207134
Massimo Di Pierro
Massimo Di Pierro and Adam K. Leibovich (Fermilab)
Exclusive Semileptonic Decays of B Mesons to Orbitally and Radial Excited D
null
null
null
null
hep-ph
null
In this paper we compute, within in the context of a relativistic quark model, the Isgur-Wise functions for exclusive semileptonic $\bar B \to X_c$ decays, where $X_c$ is any charmed mesons with total spin $J=0,1,2$ or one of their first excited states. The relevant matrix elements are computed by a direct numerical ...
[ { "created": "Wed, 10 Jul 2002 18:17:01 GMT", "version": "v1" } ]
2007-05-23
[ [ "Di Pierro", "Massimo", "", "Fermilab" ], [ "Leibovich", "Adam K.", "", "Fermilab" ] ]
In this paper we compute, within in the context of a relativistic quark model, the Isgur-Wise functions for exclusive semileptonic $\bar B \to X_c$ decays, where $X_c$ is any charmed mesons with total spin $J=0,1,2$ or one of their first excited states. The relevant matrix elements are computed by a direct numerical in...
1312.1535
Jelena Aleksi\'c
J. Aleksi\'c (1), S. Ansoldi (2), L. A. Antonelli (3), P. Antoranz (4), A. Babic (5), P. Bangale (6), U. Barres de Almeida (6), J. A. Barrio (7), J. Becerra Gonz\'alez (8,25), W. Bednarek (9), K. Berger (8), E. Bernardini (10), A. Biland (11), O. Blanch (1), R. K. Bock (6), S. Bonnefoy (7), G. Bonnoli (3), F. B...
Optimized dark matter searches in deep observations of Segue 1 with MAGIC
32 pages, 19 figures
JCAP 02 (2014) 008
10.1088/1475-7516/2014/02/008
null
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present the results of stereoscopic observations of the satellite galaxy Segue 1 with the MAGIC Telescopes, carried out between 2011 and 2013. With almost 160 hours of good-quality data, this is the deepest observational campaign on any dwarf galaxy performed so far in the very high energy range of the electromagn...
[ { "created": "Thu, 5 Dec 2013 13:26:01 GMT", "version": "v1" }, { "created": "Mon, 20 Jan 2014 12:15:35 GMT", "version": "v2" }, { "created": "Thu, 6 Feb 2014 15:05:28 GMT", "version": "v3" } ]
2014-02-07
[ [ "Aleksić", "J.", "" ], [ "Ansoldi", "S.", "" ], [ "Antonelli", "L. A.", "" ], [ "Antoranz", "P.", "" ], [ "Babic", "A.", "" ], [ "Bangale", "P.", "" ], [ "de Almeida", "U. Barres", "" ], [ "Barrio",...
We present the results of stereoscopic observations of the satellite galaxy Segue 1 with the MAGIC Telescopes, carried out between 2011 and 2013. With almost 160 hours of good-quality data, this is the deepest observational campaign on any dwarf galaxy performed so far in the very high energy range of the electromagnet...
hep-ph/0312313
Gosta Gustafson
Gosta Gustafson
Unintegrated Parton Densities and Applications
Talk presented at the Ringberg Workshop, New Trends in HERA Physics, Schloss Ringberg, Germany, 28 Sept. - 3 Oct. 2003
null
10.1142/9789812702722_0025
LU-TP 03-55
hep-ph
null
Different formalisms for unintegrated parton densities are discussed, and some results and applications are presented.
[ { "created": "Mon, 22 Dec 2003 14:38:54 GMT", "version": "v1" } ]
2017-08-23
[ [ "Gustafson", "Gosta", "" ] ]
Different formalisms for unintegrated parton densities are discussed, and some results and applications are presented.
1004.2125
Takehiko Asaka
Takehiko Asaka and Hiroaki Nagao
Non-perturbative Corrections to Particle Production from Coherent Oscillation
24 pages, 8 figures
Prog.Theor.Phys.124:293-314,2010
10.1143/PTP.124.293
null
hep-ph astro-ph.CO gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate particle production from coherent oscillation by using the method based on the Bogolyubov transformation. Especially, we study the case when the amplitude of the oscillation and also the coupling constants with the oscillating field are small in order to avoid the non-perturbative corrections from the ...
[ { "created": "Tue, 13 Apr 2010 09:06:22 GMT", "version": "v1" } ]
2011-03-28
[ [ "Asaka", "Takehiko", "" ], [ "Nagao", "Hiroaki", "" ] ]
We investigate particle production from coherent oscillation by using the method based on the Bogolyubov transformation. Especially, we study the case when the amplitude of the oscillation and also the coupling constants with the oscillating field are small in order to avoid the non-perturbative corrections from the br...
1307.1559
D.N. Triantafyllopoulos
E. Iancu, D.N. Triantafyllopoulos
JIMWLK evolution for multi-particle production in Langevin form
28 pages, 5 figures
null
10.1007/JHEP11(2013)067
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Within the effective theory for the Color Glass Condensate, we study multi-particle production with rapidity correlations in proton-nucleus collisions at high energy. The high-energy evolution responsible for such correlations is governed by a generalization of the JIMWLK equation which describes the simultaneous evo...
[ { "created": "Fri, 5 Jul 2013 09:22:10 GMT", "version": "v1" } ]
2015-06-16
[ [ "Iancu", "E.", "" ], [ "Triantafyllopoulos", "D. N.", "" ] ]
Within the effective theory for the Color Glass Condensate, we study multi-particle production with rapidity correlations in proton-nucleus collisions at high energy. The high-energy evolution responsible for such correlations is governed by a generalization of the JIMWLK equation which describes the simultaneous evolu...
hep-ph/9810518
Elvio Disalvo
M. Conte, E. Di Salvo, A. Penzo and M. Pusterla
Perspectives for Direct CP Violation Tests in Hyperon Decays
8 pages, latex
NuovoCim.A111:1351-1357,1998
10.1007/BF03545800
null
hep-ph
null
We discuss the perspectives of measuring direct CP violation parameters in hyperon decays by measurements with proton and/or antiproton beams, to be carried out at various facilities, and in particular we propose new experiments at the Tevatron and at the LHC.
[ { "created": "Thu, 29 Oct 1998 10:03:16 GMT", "version": "v1" } ]
2022-03-02
[ [ "Conte", "M.", "" ], [ "Di Salvo", "E.", "" ], [ "Penzo", "A.", "" ], [ "Pusterla", "M.", "" ] ]
We discuss the perspectives of measuring direct CP violation parameters in hyperon decays by measurements with proton and/or antiproton beams, to be carried out at various facilities, and in particular we propose new experiments at the Tevatron and at the LHC.
0904.1604
Guo-Li Wang
Guo-Li Wang
Annihilation Rate of $2^{++}$ Charmonium and Bottomonium
9 pages,1 figure, 3 tables
Phys.Lett.B674:172-175,2009
10.1016/j.physletb.2009.03.030
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Two-photon annihilation rates of $2^+$ tensor charmonium and bottomonium up to third radial excited states are estimated in the relativistic Salpeter method. Full Salpeter equation for $2^+$ tensor state is solved with a well defined relativistic wave function and we calculated the annihilation amplitude using the Ma...
[ { "created": "Thu, 9 Apr 2009 20:55:11 GMT", "version": "v1" } ]
2009-12-10
[ [ "Wang", "Guo-Li", "" ] ]
Two-photon annihilation rates of $2^+$ tensor charmonium and bottomonium up to third radial excited states are estimated in the relativistic Salpeter method. Full Salpeter equation for $2^+$ tensor state is solved with a well defined relativistic wave function and we calculated the annihilation amplitude using the Mand...
hep-ph/9903548
Jianming Qian
Jianming Qian (Univ. of Michigan)
Sensitivity to Gauge-Mediated Supersymmetry Breaking Models of the Fermilab Upgraded Tevatron Collider
27 pages, 21 figures, Dzero GMSB report for the Tevatron Run II Higgs/Supersymmetry workshop
null
null
null
hep-ph hep-ex
null
This paper discusses supersymmetry discovery potential of the upgraded D\O experiment at the Tevatron $p\bar{p}$ collider. Six final states with large transverse energy (momentum) leptons or photons (with or without large transverse momentum imbalances) are studied. These final states are expected to have small backg...
[ { "created": "Wed, 31 Mar 1999 20:19:34 GMT", "version": "v1" }, { "created": "Thu, 14 Oct 1999 21:02:59 GMT", "version": "v2" } ]
2007-05-23
[ [ "Qian", "Jianming", "", "Univ. of Michigan" ] ]
This paper discusses supersymmetry discovery potential of the upgraded D\O experiment at the Tevatron $p\bar{p}$ collider. Six final states with large transverse energy (momentum) leptons or photons (with or without large transverse momentum imbalances) are studied. These final states are expected to have small backgro...
hep-ph/9710420
Arwed Schiller
E.A. Kuraev, A. Schiller, V.G. Serbo, D.V. Serebryakova
Helicity amplitudes for the small angle lepton pair production in e^+e^- or \mu^+ \mu^- collisions
19 pages, Latex
Eur.Phys.J.C4:631-639,1998
10.1007/s100520050233
UL-NTZ 28/97
hep-ph
null
The lepton pair production $e^- e^+ \to e^- e^+ l^- l^+ $ or $\mu^- \mu^+ \to \mu^- \mu^+ l^- l^+ $ is studied in the dominant cross section region of scattering angles ${m_j}/{E_j} \stackrel{<}{\sim} \theta_j \ll 1 $. An analytical expression is found for all 64 helicity amplitudes of these processes. The accuracy o...
[ { "created": "Tue, 21 Oct 1997 07:53:36 GMT", "version": "v1" } ]
2009-09-15
[ [ "Kuraev", "E. A.", "" ], [ "Schiller", "A.", "" ], [ "Serbo", "V. G.", "" ], [ "Serebryakova", "D. V.", "" ] ]
The lepton pair production $e^- e^+ \to e^- e^+ l^- l^+ $ or $\mu^- \mu^+ \to \mu^- \mu^+ l^- l^+ $ is studied in the dominant cross section region of scattering angles ${m_j}/{E_j} \stackrel{<}{\sim} \theta_j \ll 1 $. An analytical expression is found for all 64 helicity amplitudes of these processes. The accuracy of ...
2101.05819
Antonio Enrique C\'arcamo Hern\'andez
A. E. C\'arcamo Hern\'andez, S. F. King, H. Lee
Fermion mass hierarchies from vector-like families with an extended 2HDM and a possible explanation for the electron and muon anomalous magnetic moments
41 pages, 12 figures. References added, discussions enlarged. Matches published version in PRD
Phys. Rev. D 103, 115024 (2021)
10.1103/PhysRevD.103.115024
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study an extended 2 Higgs doublet model (2HDM) in which the Standard Model (SM) Yukawa interactions are forbidden due to a global $U(1)^\prime$ symmetry, but may arise via mixing with vector-like families. In this model, the hierarchical structure of Yukawa couplings of quarks and leptons in the SM arises from the...
[ { "created": "Thu, 14 Jan 2021 19:00:06 GMT", "version": "v1" }, { "created": "Mon, 7 Feb 2022 18:09:50 GMT", "version": "v2" } ]
2022-02-08
[ [ "Hernández", "A. E. Cárcamo", "" ], [ "King", "S. F.", "" ], [ "Lee", "H.", "" ] ]
We study an extended 2 Higgs doublet model (2HDM) in which the Standard Model (SM) Yukawa interactions are forbidden due to a global $U(1)^\prime$ symmetry, but may arise via mixing with vector-like families. In this model, the hierarchical structure of Yukawa couplings of quarks and leptons in the SM arises from the h...
2203.05846
Mirja Tevio
Nestor Armesto and Tuomas Lappi and Heikki M\"antysaari and Hannu Paukkunen and Mirja Tevio
Signatures of gluon saturation from structure-function measurements
14 pages, 11 figures, the coefficients determined in the reweighting process are included in the ancillary files. v2: version is published in Phys. Rev. D
null
10.1103/PhysRevD.105.114017
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study experimentally observable signals for nonlinear QCD dynamics in deep inelastic scattering (DIS) at small Bjorken variable $x$ and moderate virtuality $Q^2$, by quantifying differences between the linear Dokshitzer-Gribov-Lipatov-Altarelli-Parisi (DGLAP) evolution and nonlinear evolution with the Balitsky-Kov...
[ { "created": "Fri, 11 Mar 2022 10:48:19 GMT", "version": "v1" }, { "created": "Thu, 16 Jun 2022 13:23:44 GMT", "version": "v2" } ]
2022-06-17
[ [ "Armesto", "Nestor", "" ], [ "Lappi", "Tuomas", "" ], [ "Mäntysaari", "Heikki", "" ], [ "Paukkunen", "Hannu", "" ], [ "Tevio", "Mirja", "" ] ]
We study experimentally observable signals for nonlinear QCD dynamics in deep inelastic scattering (DIS) at small Bjorken variable $x$ and moderate virtuality $Q^2$, by quantifying differences between the linear Dokshitzer-Gribov-Lipatov-Altarelli-Parisi (DGLAP) evolution and nonlinear evolution with the Balitsky-Kovch...
1510.00246
Daniele Barducci
D. Barducci, G. B\'elanger, C. Hugonie and A. Pukhov
Status and prospects of the nMSSM after LHC Run-1
33 pages, 9 figures. Version accepted for publication in JHEP
null
10.1007/JHEP01(2016)050
LAPTH-053/15, LUPM:15-015
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The new minimal supersymmetric standard model (nMSSM), a variant of the general next to minimal supersymmetric standard model (NMSSM) without $Z_3$ symmetry, features a naturally light singlino with a mass below 75 GeV. In light of the new constraints from LHC Run-1 on the Higgs couplings, sparticles searches and fla...
[ { "created": "Thu, 1 Oct 2015 14:18:41 GMT", "version": "v1" }, { "created": "Mon, 14 Dec 2015 16:11:05 GMT", "version": "v2" } ]
2016-02-17
[ [ "Barducci", "D.", "" ], [ "Bélanger", "G.", "" ], [ "Hugonie", "C.", "" ], [ "Pukhov", "A.", "" ] ]
The new minimal supersymmetric standard model (nMSSM), a variant of the general next to minimal supersymmetric standard model (NMSSM) without $Z_3$ symmetry, features a naturally light singlino with a mass below 75 GeV. In light of the new constraints from LHC Run-1 on the Higgs couplings, sparticles searches and flavo...
hep-ph/0601048
Stefano Forte
Stefano Forte, Giovanni Ridolfi, Joan Rojo and Maria Ubiali
Borel resummation of soft gluon radiation and higher twists
12 pages, 3 figures, LaTeX
Phys.Lett.B635:313-319,2006
10.1016/j.physletb.2006.02.058
IFUM-860-FT, GeF/TH/14-05
hep-ph
null
We show that the well-known divergence of the perturbative expansion of resummed results for processes such as deep-inelastic scattering and Drell-Yan in the soft limit can be treated by Borel resummation. The divergence in the Borel inversion can be removed by the inclusion of suitable higher twist terms. This provi...
[ { "created": "Fri, 6 Jan 2006 14:53:06 GMT", "version": "v1" } ]
2008-11-26
[ [ "Forte", "Stefano", "" ], [ "Ridolfi", "Giovanni", "" ], [ "Rojo", "Joan", "" ], [ "Ubiali", "Maria", "" ] ]
We show that the well-known divergence of the perturbative expansion of resummed results for processes such as deep-inelastic scattering and Drell-Yan in the soft limit can be treated by Borel resummation. The divergence in the Borel inversion can be removed by the inclusion of suitable higher twist terms. This provide...
hep-ph/0111449
Ismd31
Errol Gotsman
Saturation in DIS processes
5 pages, 5 figures (1 in eps, 4 in ps) talk given at XXXI International Symposium on Multiparticle Dynamics, Sep. 1-7, 2001, Datong China URL http://ismd31.ccnu.edu.cn/
null
10.1142/9789812778048_0077
null
hep-ph
null
We examine HERA data with a view of determining whether unique signs of saturation can be identified. Concentrating on two channels the logarithmic slope of $F_{2}$, and the production of $J/\Psi$, which are sensitive to the behaviour of $xG(x,Q^{2})$ the gluon density distribution in the proton, we show that our mod...
[ { "created": "Fri, 30 Nov 2001 09:26:27 GMT", "version": "v1" } ]
2017-08-23
[ [ "Gotsman", "Errol", "" ] ]
We examine HERA data with a view of determining whether unique signs of saturation can be identified. Concentrating on two channels the logarithmic slope of $F_{2}$, and the production of $J/\Psi$, which are sensitive to the behaviour of $xG(x,Q^{2})$ the gluon density distribution in the proton, we show that our model...
2012.04994
George Rupp
Eef van Beveren and George Rupp
Understanding the $f_0(980)$ and $a_0(980)$ masses as well as their widths
Invited contribution to the Gribov-90 Memorial Volume, to be published by World Scientific Publishing Company; 15 pages, 5 figures
World Scientific, Gribov-90 Memorial Volume, pp. 201-216 (2021)
10.1142/9789811238406_0020
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The low and approximately equal masses of the scalar mesons $f_0(980)$ and $a_0(980)$, as well as their relatively small decay widths, are impossible to understand in terms of standard $P$-wave quark-antiquark states. Here, these mesons are studied in a unitarised quark-meson model, together with the other light isos...
[ { "created": "Wed, 9 Dec 2020 11:59:41 GMT", "version": "v1" } ]
2021-06-11
[ [ "van Beveren", "Eef", "" ], [ "Rupp", "George", "" ] ]
The low and approximately equal masses of the scalar mesons $f_0(980)$ and $a_0(980)$, as well as their relatively small decay widths, are impossible to understand in terms of standard $P$-wave quark-antiquark states. Here, these mesons are studied in a unitarised quark-meson model, together with the other light isosca...
hep-ph/9704317
Daniel Wyler
Wilfried Buchmuller, Daniel Wyler
Constraints on the Universal Contact Interaction
6 pages Latex, no figures
Phys.Lett. B407 (1997) 147-150
10.1016/S0370-2693(97)00734-X
DESY 97-066 and ZU-TH 9/97
hep-ph
null
Forces beyond those of the standard model may manifest themselves at low energies as four-fermion contact interactions. If these new forces are independent of colour and flavour quantum numbers including baryon and lepton number, then all low energy constraints, arising from quark-lepton universality, flavour-changin...
[ { "created": "Mon, 14 Apr 1997 12:11:15 GMT", "version": "v1" } ]
2009-10-30
[ [ "Buchmuller", "Wilfried", "" ], [ "Wyler", "Daniel", "" ] ]
Forces beyond those of the standard model may manifest themselves at low energies as four-fermion contact interactions. If these new forces are independent of colour and flavour quantum numbers including baryon and lepton number, then all low energy constraints, arising from quark-lepton universality, flavour-changing ...
hep-ph/0403211
Zhi-Qiang Shi
Zhi-Qiang Shi and Guang-Jiong Ni
The Lifetime Asymmetry of Polarized Muons in Flight
7 pages, 1 figure, revtex4
Frontiers in Horizons in World Physics, Volume Vol. 256, pp. 53-65 (2008)
null
null
hep-ph
null
Based on the parity violation in Standard Model, we study the dependence of the lifetime on the polarization of an initial-state fermion in weak interactions. The fermion lifetime was usually calculated in terms of spin states. However, after comparing spin states with helicity states and chirality states, it is poin...
[ { "created": "Fri, 19 Mar 2004 13:42:17 GMT", "version": "v1" } ]
2008-06-18
[ [ "Shi", "Zhi-Qiang", "" ], [ "Ni", "Guang-Jiong", "" ] ]
Based on the parity violation in Standard Model, we study the dependence of the lifetime on the polarization of an initial-state fermion in weak interactions. The fermion lifetime was usually calculated in terms of spin states. However, after comparing spin states with helicity states and chirality states, it is pointe...
hep-ph/0108223
Mirian E. Bracco
M.E. Bracco, M. Chiapparini, A. Lozea, F.S. Navarra, M. Nielsen
D and rho Mesons: Who resolves whom?
1 LaTeX file (9 pages), 2 .ps figures. Accepted for publication to Phys.Letts.B
Phys.Lett. B521 (2001) 1-6
10.1016/S0370-2693(01)01192-3
null
hep-ph
null
The DDrho form factor is evaluated in a QCD sum rule calculation for both D and rho off-shell mesons. We study the double Borel sum rule for the three point function of two pseudoscalar and one vector meson currents. We find that the momentum dependence of the form factors is very different if the D or the rho meson ...
[ { "created": "Mon, 27 Aug 2001 14:48:00 GMT", "version": "v1" }, { "created": "Thu, 18 Oct 2001 16:03:55 GMT", "version": "v2" } ]
2009-11-07
[ [ "Bracco", "M. E.", "" ], [ "Chiapparini", "M.", "" ], [ "Lozea", "A.", "" ], [ "Navarra", "F. S.", "" ], [ "Nielsen", "M.", "" ] ]
The DDrho form factor is evaluated in a QCD sum rule calculation for both D and rho off-shell mesons. We study the double Borel sum rule for the three point function of two pseudoscalar and one vector meson currents. We find that the momentum dependence of the form factors is very different if the D or the rho meson is...
2107.06292
Timofey Solomko
Oleg Lebedev, Fedor Smirnov, Timofey Solomko, Jong-Hyun Yoon
Dark matter production and reheating via direct inflaton couplings: collective effects
21 pages, 7 figures; v2: version accepted for publication in JCAP; v3: fixed a typo in eq. 3.45, added a title for ref. 39
JCAP10(2021)032
10.1088/1475-7516/2021/10/032
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study scalar dark matter production and reheating via renormalizable inflaton couplings, which include both quartic and trilinear interactions. These processes often depend crucially on collective effects such as resonances, backreaction and rescattering of the produced particles. To take them into account, we per...
[ { "created": "Tue, 13 Jul 2021 18:00:01 GMT", "version": "v1" }, { "created": "Tue, 5 Oct 2021 05:26:20 GMT", "version": "v2" }, { "created": "Sun, 10 Oct 2021 11:42:01 GMT", "version": "v3" } ]
2021-10-14
[ [ "Lebedev", "Oleg", "" ], [ "Smirnov", "Fedor", "" ], [ "Solomko", "Timofey", "" ], [ "Yoon", "Jong-Hyun", "" ] ]
We study scalar dark matter production and reheating via renormalizable inflaton couplings, which include both quartic and trilinear interactions. These processes often depend crucially on collective effects such as resonances, backreaction and rescattering of the produced particles. To take them into account, we perfo...
1303.5776
Diptimoy Ghosh
Amit Chakraborty, Dilip Kumar Ghosh, Diptimoy Ghosh, Dipan Sengupta
Stop and sbottom search using dileptonic $M_{T2}$ variable and boosted top technique at the LHC
Estimate of detector effects and some more benchmark points have been included, more discussion and references added, accepted for publication in JHEP
JHEP 1310 (2013) 122
10.1007/JHEP10(2013)122
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The ATLAS and CMS experiments at the CERN LHC have collected about 20 $fb^{-1}$ of data each at the end of their 8 TeV run, and ruled out a huge swath of parameter space in the context of Minimally Supersymmetric Standard Model(MSSM). Limits on masses of the gluino ($\tilde{g}$) and the squarks of the first two gener...
[ { "created": "Fri, 22 Mar 2013 20:43:08 GMT", "version": "v1" }, { "created": "Sun, 29 Sep 2013 18:41:57 GMT", "version": "v2" } ]
2013-10-29
[ [ "Chakraborty", "Amit", "" ], [ "Ghosh", "Dilip Kumar", "" ], [ "Ghosh", "Diptimoy", "" ], [ "Sengupta", "Dipan", "" ] ]
The ATLAS and CMS experiments at the CERN LHC have collected about 20 $fb^{-1}$ of data each at the end of their 8 TeV run, and ruled out a huge swath of parameter space in the context of Minimally Supersymmetric Standard Model(MSSM). Limits on masses of the gluino ($\tilde{g}$) and the squarks of the first two generat...
1501.07717
Kei Yamamoto
Morimitsu Tanimoto, Kei Yamamoto
Linking Leptonic CP violation to Quark Unitarity Triangle
14 pages, 8 figures, Some discussions and Appendix are added
null
10.1007/JHEP04(2015)037
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the linking between the CP violating phase of the lepton sectors and the unitarity triangle of the B0 meson system. Antusch, King, Malinsky and Spinrath have shown that the quark mass matrices with the negligible 1-3 mixing give an interesting relation between the phase of the quark mixing matrices and CP vi...
[ { "created": "Fri, 30 Jan 2015 10:00:48 GMT", "version": "v1" }, { "created": "Sat, 7 Feb 2015 08:20:34 GMT", "version": "v2" }, { "created": "Fri, 13 Mar 2015 00:57:10 GMT", "version": "v3" } ]
2015-06-23
[ [ "Tanimoto", "Morimitsu", "" ], [ "Yamamoto", "Kei", "" ] ]
We study the linking between the CP violating phase of the lepton sectors and the unitarity triangle of the B0 meson system. Antusch, King, Malinsky and Spinrath have shown that the quark mass matrices with the negligible 1-3 mixing give an interesting relation between the phase of the quark mixing matrices and CP viol...
2207.04807
Iver Brevik
Iver H. Brevik and Moshe M. Chaichian
Axion electrodynamics: Energy-momentum tensor, and possibilities for experimental tests
19 pages latex, slightly extended version. To appear in Int. J. Mod. Phys. A
Int. J. Mod. Phys. A 37, 22501512 (2022)
10.1142/S0217751X22501512
null
hep-ph hep-th
http://creativecommons.org/licenses/by/4.0/
Axion electrodynamics is based upon the Lagrangian of the electromagnetic (EM) field plus its interaction with the axions, and is accordingly a physically open system. It means that the four-divergence of the EM energy-momentum tensor is different from zero, implying in turn that the total EM energy and momentum (whe...
[ { "created": "Mon, 11 Jul 2022 12:08:53 GMT", "version": "v1" }, { "created": "Thu, 11 Aug 2022 14:39:41 GMT", "version": "v2" } ]
2022-11-01
[ [ "Brevik", "Iver H.", "" ], [ "Chaichian", "Moshe M.", "" ] ]
Axion electrodynamics is based upon the Lagrangian of the electromagnetic (EM) field plus its interaction with the axions, and is accordingly a physically open system. It means that the four-divergence of the EM energy-momentum tensor is different from zero, implying in turn that the total EM energy and momentum (when ...
hep-ph/0511003
Leszek Roszkowski
Ki-Young Choi, Leszek Roszkowski
E-Wimps
7 pages, plenary talk given by L. Roszkowski at PASCOS-05, Gyeongju, Korea
null
10.1063/1.2149672
null
hep-ph
null
Extremely weakly interacting massive particles (E-WIMPs) are intriguing candidates for cold dark matter in the Universe. We review two well motivated E-WIMPs, an axino and a gravitino, and point out their cosmological and phenomenological similarities and differences, the latter of which may allow one to distinguishi...
[ { "created": "Mon, 31 Oct 2005 23:26:14 GMT", "version": "v1" } ]
2011-02-19
[ [ "Choi", "Ki-Young", "" ], [ "Roszkowski", "Leszek", "" ] ]
Extremely weakly interacting massive particles (E-WIMPs) are intriguing candidates for cold dark matter in the Universe. We review two well motivated E-WIMPs, an axino and a gravitino, and point out their cosmological and phenomenological similarities and differences, the latter of which may allow one to distinguishing...
hep-ph/0310027
G. S. Krishnaswami
V. John, G. S. Krishnaswami and S. G. Rajeev
An Interacting Parton Model for Quark and Anti-quark distributions in the Baryon
14 pages
Phys.Lett.B487:125-132,2000
10.1016/S0370-2693(00)00808-X
null
hep-ph
null
In this paper we study a 1+1 dimensional relativistic parton model for the structure of baryons. The quarks and anti-quarks interact through a linear potential. We obtain an analytic formula for the isospin averaged valence quark distribution in the chiral and large Nc limits. The leading 1/Nc and non-zero current qu...
[ { "created": "Wed, 1 Oct 2003 23:05:10 GMT", "version": "v1" } ]
2008-11-26
[ [ "John", "V.", "" ], [ "Krishnaswami", "G. S.", "" ], [ "Rajeev", "S. G.", "" ] ]
In this paper we study a 1+1 dimensional relativistic parton model for the structure of baryons. The quarks and anti-quarks interact through a linear potential. We obtain an analytic formula for the isospin averaged valence quark distribution in the chiral and large Nc limits. The leading 1/Nc and non-zero current quar...
1712.05932
Krzysztof Marek Kutak
Marcin Bury, Andreas van Hameren, Hannes Jung, Krzysztof Kutak, Sebastian Sapeta, Mirko Serino
Calculations with off-shell matrix elements, TMD parton densities and TMD parton showers
12 pages
null
10.1140/epjc/s10052-018-5642-2
IFJPAN-IV-2017-28, DESY 17-222
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A new calculation using off-shell matrix elements with TMD parton densities supplemented with a newly developed initial state TMD parton shower is described. The calculation is based on the KaTie package for an automated calculation of the partonic process in high-energy factorization, making use of TMD parton densit...
[ { "created": "Sat, 16 Dec 2017 10:36:51 GMT", "version": "v1" } ]
2018-04-04
[ [ "Bury", "Marcin", "" ], [ "van Hameren", "Andreas", "" ], [ "Jung", "Hannes", "" ], [ "Kutak", "Krzysztof", "" ], [ "Sapeta", "Sebastian", "" ], [ "Serino", "Mirko", "" ] ]
A new calculation using off-shell matrix elements with TMD parton densities supplemented with a newly developed initial state TMD parton shower is described. The calculation is based on the KaTie package for an automated calculation of the partonic process in high-energy factorization, making use of TMD parton densitie...
1107.0914
Pietro Slavich
G. Degrassi, S. Di Vita and P. Slavich
NLO QCD corrections to pseudoscalar Higgs production in the MSSM
26 pages, 4 figures. v2: comments added in section 3, version published in JHEP
JHEP 1108:128,2011
10.1007/JHEP08(2011)128
RM3-TH/11-05
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a calculation of the two-loop quark-squark-gluino contributions to pseudoscalar Higgs boson production via gluon fusion in the MSSM. We regularize the loop integrals using the Pauli-Villars method, and obtain explicit and compact analytic results based on an expansion in the heavy particle masses. Our resu...
[ { "created": "Tue, 5 Jul 2011 16:11:35 GMT", "version": "v1" }, { "created": "Thu, 1 Sep 2011 10:31:40 GMT", "version": "v2" } ]
2011-09-02
[ [ "Degrassi", "G.", "" ], [ "Di Vita", "S.", "" ], [ "Slavich", "P.", "" ] ]
We present a calculation of the two-loop quark-squark-gluino contributions to pseudoscalar Higgs boson production via gluon fusion in the MSSM. We regularize the loop integrals using the Pauli-Villars method, and obtain explicit and compact analytic results based on an expansion in the heavy particle masses. Our result...
1202.3024
Marco Nardecchia
Tuomas Hapola, Federico Mescia, Marco Nardecchia, Francesco Sannino
Pseudo Goldstone Bosons Phenomenology in Minimal Walking Technicolor
25 pages, 5 figures
null
10.1140/epjc/s10052-012-2063-5
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We construct the non-linear realized Lagrangian for the Goldstone Bosons associated to the breaking pattern of SU(4) to SO(4). This pattern is expected to occur in any Technicolor extension of the standard model featuring two Dirac fermions transforming according to real representations of the underlying gauge group....
[ { "created": "Tue, 14 Feb 2012 12:54:20 GMT", "version": "v1" } ]
2015-06-04
[ [ "Hapola", "Tuomas", "" ], [ "Mescia", "Federico", "" ], [ "Nardecchia", "Marco", "" ], [ "Sannino", "Francesco", "" ] ]
We construct the non-linear realized Lagrangian for the Goldstone Bosons associated to the breaking pattern of SU(4) to SO(4). This pattern is expected to occur in any Technicolor extension of the standard model featuring two Dirac fermions transforming according to real representations of the underlying gauge group. W...
hep-ph/0106319
Andreas Freund
A. Freund (Regensburg) and M.F. McDermott (Liverpool)
A next-to-leading order QCD analysis of deeply virtual Compton scattering amplitudes
12 pages, 12 figures, revtex, final version to be published in Phys. Rev. D. Corrected error in MRSA' distribution and modified extraplation behavior of GRSV00 distribution. Corrected error in +i\epsilon treatment. Taking now correct sheaf of log. Errors in subtraction equations corrected. Figures and results f...
Phys.Rev. D65 (2002) 074008
10.1103/PhysRevD.65.074008
LTH 515
hep-ph
null
We present a next-to-leading order (NLO) QCD analysis of unpolarized and polarized deeply virtual Compton scattering (DVCS) amplitudes, for two different input scenarios, in the $\bar{MS}$ scheme. We illustrate and discuss the size of the NLO effects and the behavior of the amplitudes in skewedness, $\zeta$, and phot...
[ { "created": "Thu, 28 Jun 2001 07:55:24 GMT", "version": "v1" }, { "created": "Wed, 19 Sep 2001 13:43:35 GMT", "version": "v2" }, { "created": "Thu, 31 Jan 2002 13:27:32 GMT", "version": "v3" } ]
2009-11-07
[ [ "Freund", "A.", "", "Regensburg" ], [ "McDermott", "M. F.", "", "Liverpool" ] ]
We present a next-to-leading order (NLO) QCD analysis of unpolarized and polarized deeply virtual Compton scattering (DVCS) amplitudes, for two different input scenarios, in the $\bar{MS}$ scheme. We illustrate and discuss the size of the NLO effects and the behavior of the amplitudes in skewedness, $\zeta$, and photon...
1805.10793
Takehiko Asaka
Takehiko Asaka, Hisashi Okui, Minoru Tanaka, and Motohiko Yoshimura
Tomography by neutrino pair beam
16 pages, 8 figures
null
10.1016/j.physletb.2018.09.004
OU-HET 973
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider tomography of the Earth's interior using the neutrino pair beam which has recently been proposed. The beam produces a large amount of neutrino and antineutrino pairs from the circulating partially stripped ions and provides the possibility to measure precisely the energy spectrum of neutrino oscillation p...
[ { "created": "Mon, 28 May 2018 07:22:58 GMT", "version": "v1" } ]
2018-09-12
[ [ "Asaka", "Takehiko", "" ], [ "Okui", "Hisashi", "" ], [ "Tanaka", "Minoru", "" ], [ "Yoshimura", "Motohiko", "" ] ]
We consider tomography of the Earth's interior using the neutrino pair beam which has recently been proposed. The beam produces a large amount of neutrino and antineutrino pairs from the circulating partially stripped ions and provides the possibility to measure precisely the energy spectrum of neutrino oscillation pro...
hep-ph/0505088
Vadim Guzey
V. Guzey (Ruhr U., Bochum) and M. Strikman (Penn State U.)
Proton-nucleus scattering and cross section fluctuations at RHIC and LHC
18 pages, LaTeX, 1 table, 4 figures. This is the final version published in Phys. Lett. B 633 (2006) 245, with recent corrections published as Erratum in Phys. Lett. B 663 (2008) 456. The Erratum concerns Section 5 of the paper: we corrected the Lorentz factor for the calculation of the e.m. contribution and mo...
Phys.Lett.B633:245-252,2006; Phys.Lett.B663:456,2008
10.1016/j.physletb.2005.11.065 10.1016/j.physletb.2008.04.010
RUB-TPII-5/2005
hep-ph
null
We consider high-energy proton-heavy nucleus scattering within the framework of the Glauber-Gribov approximation and taking into account cross section fluctuations. Fixing parameters of the model for cross section fluctuations by the available data, we make predictions for the total, elastic and coherent diffractive ...
[ { "created": "Wed, 11 May 2005 07:36:46 GMT", "version": "v1" }, { "created": "Mon, 20 Feb 2006 10:38:56 GMT", "version": "v2" }, { "created": "Sat, 31 May 2008 14:37:50 GMT", "version": "v3" } ]
2008-11-26
[ [ "Guzey", "V.", "", "Ruhr U., Bochum" ], [ "Strikman", "M.", "", "Penn State U." ] ]
We consider high-energy proton-heavy nucleus scattering within the framework of the Glauber-Gribov approximation and taking into account cross section fluctuations. Fixing parameters of the model for cross section fluctuations by the available data, we make predictions for the total, elastic and coherent diffractive di...
1101.0078
Roman Ryutin Dr
R.A. Ryutin, V.A. Petrov, A.E. Sobol
Towards Extraction of $\pi^+ p$ and $\pi^+\pi^+$ cross-sections from Charge Exchange Processes at the LHC
8 pages, 9 figures, to be published
null
10.1140/epjc/s10052-011-1667-5
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the possibilities to analyse the data on leading neutrons production at first LHC runs. These data could be used to extract from it $\pi^+ p$ and $\pi^+\pi^+$ cross-sections. In this note we estimate relative contributions of $\pi$, $\rho$ and $a_2$ reggeons to charge exchanges and discuss related problems o...
[ { "created": "Thu, 30 Dec 2010 13:04:04 GMT", "version": "v1" } ]
2011-05-27
[ [ "Ryutin", "R. A.", "" ], [ "Petrov", "V. A.", "" ], [ "Sobol", "A. E.", "" ] ]
We study the possibilities to analyse the data on leading neutrons production at first LHC runs. These data could be used to extract from it $\pi^+ p$ and $\pi^+\pi^+$ cross-sections. In this note we estimate relative contributions of $\pi$, $\rho$ and $a_2$ reggeons to charge exchanges and discuss related problems of ...
2406.10097
Seyit Okan Kara
S. O. Kara, S. Akkoyun
A search for leptonic photon Z_l at all three CLIC energy stages by using artificial neural networks (ANN)
17 pages, 19 figures, 2 tables
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
In this work, the possible dynamics of the massive leptonic photon \(Z_{l}\) are reconsidered via the process \(e^{+}e^{-} \ rightarrow \mu^{+}\mu^{-}\) at Compact Linear Collider (CLIC) with updated center of mass energies (\(380\ GeV,\ 1500\ GeV\ and\ 3000\ GeV\)). We show that the new generation colliders as CLIC ...
[ { "created": "Fri, 14 Jun 2024 14:55:52 GMT", "version": "v1" } ]
2024-06-17
[ [ "Kara", "S. O.", "" ], [ "Akkoyun", "S.", "" ] ]
In this work, the possible dynamics of the massive leptonic photon \(Z_{l}\) are reconsidered via the process \(e^{+}e^{-} \ rightarrow \mu^{+}\mu^{-}\) at Compact Linear Collider (CLIC) with updated center of mass energies (\(380\ GeV,\ 1500\ GeV\ and\ 3000\ GeV\)). We show that the new generation colliders as CLIC ca...
hep-ph/9508404
Mariano Quiros
J.M. Moreno, D.H. Oaknin and M. Quir\'os
Top-bottom doublet in the sphaleron background
12 pages, latex + psfig, 4 uuencoded figures
Phys.Lett.B363:189-195,1995
10.1016/0370-2693(95)01183-Q
IMT-FT-111/95
hep-ph
null
We consider the top-bottom doublet in the background of the sphaleron for the realistic case of large non-degeneracy of fermion masses, in particular $m_b=5$ GeV and $m_t=175$ GeV. We propose an axially symmetric $(r,\theta)$-dependent ansatz for fermion fields and investigate the effects of the non-degeneracy on the...
[ { "created": "Wed, 30 Aug 1995 19:32:17 GMT", "version": "v1" } ]
2008-12-25
[ [ "Moreno", "J. M.", "" ], [ "Oaknin", "D. H.", "" ], [ "Quirós", "M.", "" ] ]
We consider the top-bottom doublet in the background of the sphaleron for the realistic case of large non-degeneracy of fermion masses, in particular $m_b=5$ GeV and $m_t=175$ GeV. We propose an axially symmetric $(r,\theta)$-dependent ansatz for fermion fields and investigate the effects of the non-degeneracy on them....
1507.04526
Bachir Moussallam
M. Albaladejo, B. Moussallam
Form factors of the isovector scalar current and the $\eta\pi$ scattering phase shifts
33 pages, 14 figures. v2: Some clarifications and corrections of typos
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A model for S-wave $\eta\pi$ scattering is proposed which could be realistic in an energy range from threshold up to above one GeV, where inelasticity is dominated by the $K\bar{K}$ channel. The $T$-matrix, satisfying two-channel unitarity, is given in a form which matches the chiral expansion results at order $p^4$ ...
[ { "created": "Thu, 16 Jul 2015 11:08:29 GMT", "version": "v1" }, { "created": "Thu, 22 Oct 2015 14:48:53 GMT", "version": "v2" } ]
2015-10-23
[ [ "Albaladejo", "M.", "" ], [ "Moussallam", "B.", "" ] ]
A model for S-wave $\eta\pi$ scattering is proposed which could be realistic in an energy range from threshold up to above one GeV, where inelasticity is dominated by the $K\bar{K}$ channel. The $T$-matrix, satisfying two-channel unitarity, is given in a form which matches the chiral expansion results at order $p^4$ ex...
1104.4791
Geraldine Servant
Thomas Konstandin and Geraldine Servant
Cosmological Consequences of Nearly Conformal Dynamics at the TeV scale
22 pages, 7 figures
null
10.1088/1475-7516/2011/12/009
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Nearly conformal dynamics at the TeV scale as motivated by the hierarchy problem can be characterized by a stage of significant supercooling at the electroweak epoch. This has important cosmological consequences. In particular, a common assumption about the history of the universe is that the reheating temperature is...
[ { "created": "Mon, 25 Apr 2011 20:01:17 GMT", "version": "v1" } ]
2015-05-28
[ [ "Konstandin", "Thomas", "" ], [ "Servant", "Geraldine", "" ] ]
Nearly conformal dynamics at the TeV scale as motivated by the hierarchy problem can be characterized by a stage of significant supercooling at the electroweak epoch. This has important cosmological consequences. In particular, a common assumption about the history of the universe is that the reheating temperature is h...
1311.0435
Evangelos Matsinos
Evangelos Matsinos and G\"unther Rasche
Aspects of the ETH model of the pion-nucleon interaction
66 pages, 8 figures
Nuclear Physics A 927 (2014) 147
10.1016/j.nuclphysa.2014.04.021
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The ETH model of the pion-nucleon ($\pi N$) interaction contains $t$-channel $\sigma$- and $\rho$-exchange graphs, as well as the $s$- and $u$-channel contributions with the well-established $s$ and $p$ baryon states with masses below $2$ GeV as virtual particles; the model amplitudes obey crossing symmetry and isosp...
[ { "created": "Sun, 3 Nov 2013 07:35:02 GMT", "version": "v1" }, { "created": "Sat, 30 Nov 2013 15:14:21 GMT", "version": "v2" }, { "created": "Thu, 8 May 2014 15:54:25 GMT", "version": "v3" } ]
2014-05-09
[ [ "Matsinos", "Evangelos", "" ], [ "Rasche", "Günther", "" ] ]
The ETH model of the pion-nucleon ($\pi N$) interaction contains $t$-channel $\sigma$- and $\rho$-exchange graphs, as well as the $s$- and $u$-channel contributions with the well-established $s$ and $p$ baryon states with masses below $2$ GeV as virtual particles; the model amplitudes obey crossing symmetry and isospin...
1812.09122
Josef Pradler
Josef Pradler
Dark radiation: 21cm signals and laboratory tests
4 pages; based on arXiv:1711.04531 and arXiv:1803.07048; contribution to the proceedings of the Neutrino Oscillation Workshop (NOW2018), 9-16 September 2018, Rosa Marina (Ostuni, Brindisi, Italy)
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is entirely possible that our Universe is filled with dark radiation, such as SM neutrinos or new physics states, that are sourced by the decay of dark matter with cosmologically long lifetime. If non-thermal neutrinos produced such way carry sufficient energy, they can leave a detectable imprint in experiments de...
[ { "created": "Fri, 21 Dec 2018 13:55:38 GMT", "version": "v1" } ]
2018-12-24
[ [ "Pradler", "Josef", "" ] ]
It is entirely possible that our Universe is filled with dark radiation, such as SM neutrinos or new physics states, that are sourced by the decay of dark matter with cosmologically long lifetime. If non-thermal neutrinos produced such way carry sufficient energy, they can leave a detectable imprint in experiments desi...
2007.14978
Sebastian Zell
Mikhail Shaposhnikov, Andrey Shkerin, Inar Timiryasov, Sebastian Zell
Higgs inflation in Einstein-Cartan gravity
26 pages, 8 figures, 1 appendix; v2: updated figures and references, added short comparison with arXiv:2007.12595, minor corrections to formulas in sections 6.2 and 6.3, other small improvements; matches published version (including erratum)
JCAP 02 (2021) 008 [Erratum: JCAP 10 (2021) E01]
10.1088/1475-7516/2021/02/008
null
hep-ph astro-ph.CO gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study inflation driven by the Higgs field in the Einstein-Cartan formulation of gravity. In this theory, the presence of the Holst and Nieh-Yan terms with the Higgs field non-minimally coupled to them leads to three additional coupling constants. For a broad range of parameters, we find that inflation is both poss...
[ { "created": "Wed, 29 Jul 2020 17:45:13 GMT", "version": "v1" }, { "created": "Thu, 21 Oct 2021 09:41:57 GMT", "version": "v2" } ]
2021-10-22
[ [ "Shaposhnikov", "Mikhail", "" ], [ "Shkerin", "Andrey", "" ], [ "Timiryasov", "Inar", "" ], [ "Zell", "Sebastian", "" ] ]
We study inflation driven by the Higgs field in the Einstein-Cartan formulation of gravity. In this theory, the presence of the Holst and Nieh-Yan terms with the Higgs field non-minimally coupled to them leads to three additional coupling constants. For a broad range of parameters, we find that inflation is both possib...
2012.15771
Taylor Murphy
Linda M. Carpenter and Taylor Murphy
Color-octet scalars in Dirac gaugino models with broken $R$ symmetry
69 pages, 14 figures. Updated to resemble JHEP Version of Record
JHEP 05 (2021) 079
10.1007/JHEP05(2021)079
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work we study the collider phenomenology of color-octet scalars (sgluons) in supersymmetric models with Dirac gaugino masses that feature an explicitly broken $R$ symmetry ($R$-broken models). We construct such models by augmenting minimal $R$-symmetric models with a fairly general set of supersymmetric and s...
[ { "created": "Thu, 31 Dec 2020 17:45:30 GMT", "version": "v1" }, { "created": "Fri, 22 Jan 2021 18:20:03 GMT", "version": "v2" }, { "created": "Wed, 12 May 2021 14:14:21 GMT", "version": "v3" } ]
2021-05-13
[ [ "Carpenter", "Linda M.", "" ], [ "Murphy", "Taylor", "" ] ]
In this work we study the collider phenomenology of color-octet scalars (sgluons) in supersymmetric models with Dirac gaugino masses that feature an explicitly broken $R$ symmetry ($R$-broken models). We construct such models by augmenting minimal $R$-symmetric models with a fairly general set of supersymmetric and sof...
1407.3272
Wouter Waalewijn
Mathias Ritzmann and Wouter J. Waalewijn
Fragmentation in Jets at NNLO
25 pages + Mathematica files with expressions, v2: introduction expanded, errors fixed in NNLO fragmenting jet matching coefficients (Sec. IV F), v3: journal version
Phys. Rev. D 90, 054029 (2014)
10.1103/PhysRevD.90.054029
NIKHEF 2014-015
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Beam and jet functions in Soft-Collinear Effective Theory describe collinear initial- and final-state radiation (jets), and enter in factorization theorems for N-jet production, the Higgs pT spectrum, etc. We show that they may directly be calculated as phase-space integrals of QCD splitting functions. At NLO all com...
[ { "created": "Fri, 11 Jul 2014 20:00:01 GMT", "version": "v1" }, { "created": "Fri, 18 Jul 2014 08:32:47 GMT", "version": "v2" }, { "created": "Thu, 16 Oct 2014 14:27:38 GMT", "version": "v3" } ]
2014-10-17
[ [ "Ritzmann", "Mathias", "" ], [ "Waalewijn", "Wouter J.", "" ] ]
Beam and jet functions in Soft-Collinear Effective Theory describe collinear initial- and final-state radiation (jets), and enter in factorization theorems for N-jet production, the Higgs pT spectrum, etc. We show that they may directly be calculated as phase-space integrals of QCD splitting functions. At NLO all compu...
1212.2974
A. H. Rezaeian
Amir H. Rezaeian, Marat Siddikov, Merijn Van de Klundert, Raju Venugopalan
Analysis of combined HERA data in the Impact-Parameter dependent Saturation model
17 pages, 18 figures
Phys.Rev.D87:034002,2013
10.1103/PhysRevD.87.034002
null
hep-ph hep-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Impact-Parameter dependent Saturation Model (IP-Sat) is a simple dipole model that incorporates key features of the physics of gluon saturation and matches smoothly to the perturbative QCD dipole expression at large Q^2 for a given x. It was previously shown that the model gives a good description of HERA data su...
[ { "created": "Wed, 12 Dec 2012 21:00:19 GMT", "version": "v1" } ]
2013-02-04
[ [ "Rezaeian", "Amir H.", "" ], [ "Siddikov", "Marat", "" ], [ "Van de Klundert", "Merijn", "" ], [ "Venugopalan", "Raju", "" ] ]
The Impact-Parameter dependent Saturation Model (IP-Sat) is a simple dipole model that incorporates key features of the physics of gluon saturation and matches smoothly to the perturbative QCD dipole expression at large Q^2 for a given x. It was previously shown that the model gives a good description of HERA data sugg...
1307.4593
James Callaghan
James C. Callaghan, Stephen F. King, George K. Leontaris
Gauge Coupling Unification in E6 F-Theory GUTs with Matter and Bulk Exotics from Flux Breaking
21 pages, 5 figures
JHEP 1312 (2013) 037
10.1007/JHEP12(2013)037
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider gauge coupling unification in E6 F-Theory Grand Unified Theories (GUTs) where E6 is broken to the Standard Model (SM) gauge group using fluxes. In such models there are two types of exotics that can affect gauge coupling unification, namely matter exotics from the matter curves in the 27 dimensional repre...
[ { "created": "Wed, 17 Jul 2013 12:14:54 GMT", "version": "v1" }, { "created": "Mon, 13 Jan 2014 18:12:22 GMT", "version": "v2" } ]
2014-01-14
[ [ "Callaghan", "James C.", "" ], [ "King", "Stephen F.", "" ], [ "Leontaris", "George K.", "" ] ]
We consider gauge coupling unification in E6 F-Theory Grand Unified Theories (GUTs) where E6 is broken to the Standard Model (SM) gauge group using fluxes. In such models there are two types of exotics that can affect gauge coupling unification, namely matter exotics from the matter curves in the 27 dimensional represe...
1507.05425
Simone Pacetti
Pedro Alberto, Alessandro Drago, Alessio Mangoni, Simone Moretti, Simone Pacetti
Analytic continuation of nucleon electromagnetic form factors in the time-like region
31 pages, 18 figures
J. Phys. G: Nucl. Part. Phys. 48 085007 (2021)
10.1088/1361-6471/abfbc2
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The possibility to compute nucleon electromagnetic form factors in the time-like region by analytic continuation of their space-like expressions has been explored in the framework of the Skyrme model. We have developed a procedure to solve analytically Fourier transforms of the nucleon electromagnetic current and hen...
[ { "created": "Mon, 20 Jul 2015 09:25:12 GMT", "version": "v1" }, { "created": "Fri, 20 Aug 2021 10:01:37 GMT", "version": "v2" } ]
2021-08-23
[ [ "Alberto", "Pedro", "" ], [ "Drago", "Alessandro", "" ], [ "Mangoni", "Alessio", "" ], [ "Moretti", "Simone", "" ], [ "Pacetti", "Simone", "" ] ]
The possibility to compute nucleon electromagnetic form factors in the time-like region by analytic continuation of their space-like expressions has been explored in the framework of the Skyrme model. We have developed a procedure to solve analytically Fourier transforms of the nucleon electromagnetic current and hence...
0901.0726
Cheuk-Yin Wong
Cheuk-Yin Wong
Momentum Kick Model Analysis of PHENIX Near-Side Ridge Data and Photon Jet
20 pages, 3 figures
Phys.Rev.C80:034908,2009
10.1103/PhysRevC.80.034908
null
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze PHENIX near-side ridge data for central Au+Au collisions at \sqrt{s_{NN}}=200 GeV with the momentum kick model, in which a near-side jet emerges near the surface, kicks medium partons, loses energy, and fragments into the trigger particle and fragmentation products. The kicked medium partons subsequently m...
[ { "created": "Wed, 7 Jan 2009 16:42:49 GMT", "version": "v1" }, { "created": "Fri, 9 Oct 2009 00:08:02 GMT", "version": "v2" } ]
2009-10-12
[ [ "Wong", "Cheuk-Yin", "" ] ]
We analyze PHENIX near-side ridge data for central Au+Au collisions at \sqrt{s_{NN}}=200 GeV with the momentum kick model, in which a near-side jet emerges near the surface, kicks medium partons, loses energy, and fragments into the trigger particle and fragmentation products. The kicked medium partons subsequently mat...
1001.2397
Gionata Luisoni
Alejandro Daleo, Aude Gehrmann-De Ridder, Thomas Gehrmann, Gionata Luisoni
NNLO Antenna Subtraction with One Hadronic Initial State
6 pages, 1 figure. Talk given at RADCOR 2009 - 9th International Symposium on Radiative Corrections (Applications of Quantum Field Theory to Phenomenology) October 25 - 30 2009
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this talk we present the extension of the antenna subtraction method to include initial states containing one hadron at NNLO. We sketch the requirements for the different necessary subtraction terms, and we explain how the antenna functions are integrated over the appropriate phase space by reducing the integrals ...
[ { "created": "Thu, 14 Jan 2010 10:10:10 GMT", "version": "v1" } ]
2010-01-15
[ [ "Daleo", "Alejandro", "" ], [ "Ridder", "Aude Gehrmann-De", "" ], [ "Gehrmann", "Thomas", "" ], [ "Luisoni", "Gionata", "" ] ]
In this talk we present the extension of the antenna subtraction method to include initial states containing one hadron at NNLO. We sketch the requirements for the different necessary subtraction terms, and we explain how the antenna functions are integrated over the appropriate phase space by reducing the integrals to...
1311.5106
Xing-Gang Wu
Sheng-Quan Wang, Xing-Gang Wu, Xu-Chang Zheng, Gu Chen and Jian-Ming Shen
An analysis of $H \to \gamma \gamma$ up to three-loop QCD corrections
16 pages, 2 figures. References updated and discussion improved, to be published in J.Phys.G
J. Phys. G: Nucl. Part. Phys. 41 (2014) 075010
10.1088/0954-3899/41/7/075010
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The principle of maximum conformality (PMC) provides a convenient way for setting the optimal renormalization scales for high-energy processes, which can eliminate the conventional renormalization scale error via an order-by-order manner. At present, we make a detailed PMC analysis on the Higgs decay $H\rightarrow \g...
[ { "created": "Wed, 20 Nov 2013 15:42:05 GMT", "version": "v1" }, { "created": "Tue, 24 Dec 2013 12:37:10 GMT", "version": "v2" }, { "created": "Sat, 1 Mar 2014 14:43:36 GMT", "version": "v3" }, { "created": "Mon, 12 May 2014 16:42:43 GMT", "version": "v4" } ]
2014-06-05
[ [ "Wang", "Sheng-Quan", "" ], [ "Wu", "Xing-Gang", "" ], [ "Zheng", "Xu-Chang", "" ], [ "Chen", "Gu", "" ], [ "Shen", "Jian-Ming", "" ] ]
The principle of maximum conformality (PMC) provides a convenient way for setting the optimal renormalization scales for high-energy processes, which can eliminate the conventional renormalization scale error via an order-by-order manner. At present, we make a detailed PMC analysis on the Higgs decay $H\rightarrow \gam...
2008.00642
Yilei Tang
Xue-Min Jiang, Yi-Lei Tang, Zhao-Huan Yu, Hong-Hao Zhang
$1 \leftrightarrow 2$ Processes of a Sterile Neutrino Around Electroweak Scale in the Thermal Plasma
HTL vertex corrections (Eqn.~(A4)) have been included to acquire the gauge invariant results. Data had been updated
Phys. Rev. D 103, 095003 (2021)
10.1103/PhysRevD.103.095003
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, we will apply the Goldstone equivalence gauge to calculate the $1 \leftrightarrow 2$ processes of a sterile neutrino in the thermal plasma below the standard model (SM) critical temperature $T_c \approx 160 \text{ GeV}$. The sterile neutrino's mass is around the electroweak scale $50 \text{ GeV} \leq m...
[ { "created": "Mon, 3 Aug 2020 04:53:30 GMT", "version": "v1" }, { "created": "Sat, 10 Oct 2020 06:28:20 GMT", "version": "v2" }, { "created": "Sat, 20 Mar 2021 16:27:46 GMT", "version": "v3" } ]
2021-05-12
[ [ "Jiang", "Xue-Min", "" ], [ "Tang", "Yi-Lei", "" ], [ "Yu", "Zhao-Huan", "" ], [ "Zhang", "Hong-Hao", "" ] ]
In this paper, we will apply the Goldstone equivalence gauge to calculate the $1 \leftrightarrow 2$ processes of a sterile neutrino in the thermal plasma below the standard model (SM) critical temperature $T_c \approx 160 \text{ GeV}$. The sterile neutrino's mass is around the electroweak scale $50 \text{ GeV} \leq m_N...
hep-ph/0404072
Kamil Nasriddinov K. N.
K.R. Nasriddinov, B.N. Kuranov, U.A. Khalikov, N.E. Iskandarov
The $\phi\to \omega \pi^0 $ Decay in the Chiral Model
10 pages, 7 figures, Phys. Rev. D
null
null
null
hep-ph
null
The $\phi \to \omega \pi^0$ decay is studied using the method of phenomenological chiral Lagrangians. It is shown that the weak hadronic current between $\omega$-and $\pi^0$ -mesons is equal to zero and this decay channel proceeds only due to the $\phi-\rho$ mixing diagram.
[ { "created": "Wed, 7 Apr 2004 15:46:58 GMT", "version": "v1" } ]
2007-05-23
[ [ "Nasriddinov", "K. R.", "" ], [ "Kuranov", "B. N.", "" ], [ "Khalikov", "U. A.", "" ], [ "Iskandarov", "N. E.", "" ] ]
The $\phi \to \omega \pi^0$ decay is studied using the method of phenomenological chiral Lagrangians. It is shown that the weak hadronic current between $\omega$-and $\pi^0$ -mesons is equal to zero and this decay channel proceeds only due to the $\phi-\rho$ mixing diagram.
0709.3020
Peter Bosted
H. Mkrtchyan, P.E. Bosted,, G.S. Adams, A. Ahmidouch, T. Angelescu, J. Arrington, R. Asaturyan, O.K. Baker,, N. Benmouna, C. Bertoncini, H.P. Blok, W.U. Boeglin, H. Breuer, M.E. Christy, S.H. Connell, Y. Cui, M.M. Dalton, S. Danagoulian, D. Day, T. Dodario, J.A. Dunne, D. Dutta, N. El Khayari, R. Ent, H.C. Fenk...
Transverse momentum dependence of semi-inclusive pion production
15 pages, 4 figures. Fit form changed to include Cahn effect Minor revisions. Added one new figure
Phys.Lett.B665:20-25,2008
10.1016/j.physletb.2008.05.047
JLAB-PHY-07-726
hep-ph
null
Cross sections for semi-inclusive electroproduction of charged pions ($\pi^{\pm}$) from both proton and deuteron targets were measured for $0.2<x<0.5$, $2<Q^2<4$ GeV$^2$, $0.3<z<1$, and $P_t^2<0.2$ GeV$^2$. For $P_t<0.1$ GeV, we find the azimuthal dependence to be small, as expected theoretically. For both $\pi^+$ an...
[ { "created": "Wed, 19 Sep 2007 14:09:04 GMT", "version": "v1" }, { "created": "Thu, 24 Jan 2008 15:52:03 GMT", "version": "v2" }, { "created": "Fri, 2 May 2008 13:05:16 GMT", "version": "v3" } ]
2008-11-26
[ [ "Mkrtchyan", "H.", "" ], [ "Bosted", "P. E.", "" ], [ "Adams", "G. S.", "" ], [ "Ahmidouch", "A.", "" ], [ "Angelescu", "T.", "" ], [ "Arrington", "J.", "" ], [ "Asaturyan", "R.", "" ], [ "Baker", ...
Cross sections for semi-inclusive electroproduction of charged pions ($\pi^{\pm}$) from both proton and deuteron targets were measured for $0.2<x<0.5$, $2<Q^2<4$ GeV$^2$, $0.3<z<1$, and $P_t^2<0.2$ GeV$^2$. For $P_t<0.1$ GeV, we find the azimuthal dependence to be small, as expected theoretically. For both $\pi^+$ and ...
hep-ph/0211063
Sabine Kraml
E. Christova, H. Eberl, S. Kraml, W. Majerotto
CP violation in charged Higgs boson decays into tau and neutrino
9 pages, 3 figures, uses JHEP3.cls
JHEP 0212 (2002) 021
10.1088/1126-6708/2002/12/021
CERN-TH/2002-309, HEPHY-PUB 767/02
hep-ph
null
We calculate the CP-violating rate asymmetry of H^\pm decays into tau and neutrino at one loop in the MSSM with complex parameters. We find that the asymmetry is typically of the order of 10^-3, depending mainly on the phases of the trilinear coupling A_\tau and of the gaugino mass M_1.
[ { "created": "Tue, 5 Nov 2002 17:13:39 GMT", "version": "v1" } ]
2009-11-07
[ [ "Christova", "E.", "" ], [ "Eberl", "H.", "" ], [ "Kraml", "S.", "" ], [ "Majerotto", "W.", "" ] ]
We calculate the CP-violating rate asymmetry of H^\pm decays into tau and neutrino at one loop in the MSSM with complex parameters. We find that the asymmetry is typically of the order of 10^-3, depending mainly on the phases of the trilinear coupling A_\tau and of the gaugino mass M_1.
hep-ph/0507230
Alfonso Rosado
A. Aranda, J.L. Diaz-Cruz, and A. Rosado
Electroweak-Higgs Unification and the Higgs Boson Mass
28 pages, 19 figures
Int.J.Mod.Phys.A22:1417-1440,2007
10.1142/S0217751X07034283
null
hep-ph
null
We propose an alternative unification scenario where the Higgs self-coupling (lambda) is unified with the electroweak SU(2)L x U(1)Y interactions at an intermediate scale MGH, lower than the GUT scale. In this model the SM remains valid up to this scale MGH, where the gauge and Higgs couplings satisfy the unification...
[ { "created": "Tue, 19 Jul 2005 16:05:10 GMT", "version": "v1" }, { "created": "Fri, 22 Jul 2005 17:03:35 GMT", "version": "v2" }, { "created": "Tue, 25 Oct 2005 15:51:18 GMT", "version": "v3" }, { "created": "Mon, 14 Aug 2006 16:17:29 GMT", "version": "v4" }, { "c...
2008-11-26
[ [ "Aranda", "A.", "" ], [ "Diaz-Cruz", "J. L.", "" ], [ "Rosado", "A.", "" ] ]
We propose an alternative unification scenario where the Higgs self-coupling (lambda) is unified with the electroweak SU(2)L x U(1)Y interactions at an intermediate scale MGH, lower than the GUT scale. In this model the SM remains valid up to this scale MGH, where the gauge and Higgs couplings satisfy the unification c...
2206.13530
Pranjal Ralegankar
Peter Adshead, Pranjal Ralegankar, and Jessie Shelton
Dark radiation constraints on portal interactions with hidden sectors
31 pages + 21 pages appendices, matches version accepted in jcap
null
10.1088/1475-7516/2022/09/056
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We update dark radiation constraints on millicharged particle (MCP) and gauged baryon-number-minus-lepton-number ($B-L$) extensions of the Standard Model (SM). In these models, a massive SM gauge singlet mediator couples the SM plasma to additional SM-singlet light degrees of freedom. In the early Universe, these new...
[ { "created": "Mon, 27 Jun 2022 18:00:02 GMT", "version": "v1" }, { "created": "Tue, 26 Jul 2022 23:55:12 GMT", "version": "v2" }, { "created": "Thu, 13 Oct 2022 08:48:37 GMT", "version": "v3" } ]
2023-05-25
[ [ "Adshead", "Peter", "" ], [ "Ralegankar", "Pranjal", "" ], [ "Shelton", "Jessie", "" ] ]
We update dark radiation constraints on millicharged particle (MCP) and gauged baryon-number-minus-lepton-number ($B-L$) extensions of the Standard Model (SM). In these models, a massive SM gauge singlet mediator couples the SM plasma to additional SM-singlet light degrees of freedom. In the early Universe, these new l...
hep-ph/0003224
Shao-Hsuan Chiu
Shao-Hsuan Chiu, T. K. Kuo, and Guo-Hong Wu
Hermitian quark mass matrices with four texture zeros
18 pages, no figure, references [8] and [10] added
Phys.Rev. D62 (2000) 053014
10.1103/PhysRevD.62.053014
null
hep-ph
null
We provide a complete and systematic analysis of hermitian, hierarchical quark mass matrices with four texture zeros. Using triangular mass matrices, each pattern of texture zeros is readily shown to lead to a definite relation between the CKM parameters and the quark masses. Nineteen pairs are found to be consistent...
[ { "created": "Wed, 22 Mar 2000 20:57:25 GMT", "version": "v1" }, { "created": "Fri, 14 Jul 2000 20:41:08 GMT", "version": "v2" } ]
2009-10-31
[ [ "Chiu", "Shao-Hsuan", "" ], [ "Kuo", "T. K.", "" ], [ "Wu", "Guo-Hong", "" ] ]
We provide a complete and systematic analysis of hermitian, hierarchical quark mass matrices with four texture zeros. Using triangular mass matrices, each pattern of texture zeros is readily shown to lead to a definite relation between the CKM parameters and the quark masses. Nineteen pairs are found to be consistent w...
2101.03702
Mitsunori Kubota
Shinya Kanemura, Mitsunori Kubota, Kei Yagyu
Testing aligned CP-violating Higgs sector at future lepton colliders
31 pages, 12 figures
null
10.1007/JHEP04(2021)144
OU-HET-1084
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the testability of CP-violating phases at future lepton colliders for the scenario which satisfies electric dipole moment data by destructive interferences among several phases. We consider the general but aligned two Higgs doublet model which has the CP-violating phases in the Higgs potential and the Yuka...
[ { "created": "Mon, 11 Jan 2021 05:11:36 GMT", "version": "v1" } ]
2021-05-05
[ [ "Kanemura", "Shinya", "" ], [ "Kubota", "Mitsunori", "" ], [ "Yagyu", "Kei", "" ] ]
We discuss the testability of CP-violating phases at future lepton colliders for the scenario which satisfies electric dipole moment data by destructive interferences among several phases. We consider the general but aligned two Higgs doublet model which has the CP-violating phases in the Higgs potential and the Yukawa...
hep-ph/9603235
Zoltan Kunszt
Z. Kunszt (ETH,Zurich)
From scattering amplitudes to cross sections in QCD
Latex 23 pages, with sprocl.sty file. Presented at the Theoretical Advanced Study Institute (TASI 95), Boulder, CO, June 4-30, 1995
null
null
ETH-TH-96/05
hep-ph
null
I describe how to calculate cross sections for hard-scattering processes in high energy collisions at next to leading order in QCD. I consider infrared-safe quantities and I assume that the scattering amplitudes are known in analytic form up to next-to-leading order. The main topic is the description of the algorithm...
[ { "created": "Wed, 6 Mar 1996 11:55:57 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kunszt", "Z.", "", "ETH,Zurich" ] ]
I describe how to calculate cross sections for hard-scattering processes in high energy collisions at next to leading order in QCD. I consider infrared-safe quantities and I assume that the scattering amplitudes are known in analytic form up to next-to-leading order. The main topic is the description of the algorithm f...
0809.3890
Walter Winter
Walter Winter
Optimizing the green-field beta beam: Small versus large theta_13
5 pages, 2 figures. Talk given at the 10th International Workshop on Neutrino factories, Super beams and Beta beams (NuFact08), Valencia, Spain
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the optimization of a green-field beta beam in terms of baseline, boost factor, luminosity, and isotope pair used. We identify two qualitatively different cases: theta_13 not discovered at the time a decision has to be made (theta_13 small), and theta_13 discovered at that time (theta_13 large). For small ...
[ { "created": "Tue, 23 Sep 2008 11:18:15 GMT", "version": "v1" } ]
2009-04-14
[ [ "Winter", "Walter", "" ] ]
We discuss the optimization of a green-field beta beam in terms of baseline, boost factor, luminosity, and isotope pair used. We identify two qualitatively different cases: theta_13 not discovered at the time a decision has to be made (theta_13 small), and theta_13 discovered at that time (theta_13 large). For small th...
0904.1962
Yevgeny Kats
Howard Georgi, Yevgeny Kats
Unparticle self-interactions
65 pages, 27 figures; v2: added section 8 on massive bosons, minor improvements, references; v3: references
JHEP 1002:065,2010
10.1007/JHEP02(2010)065
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We develop techniques for studying the effects of self-interactions in the conformal sector of an unparticle model. Their physics is encoded in the higher n-point functions of the conformal theory. We study inclusive processes and argue that the inclusive production of unparticle stuff in standard model processes due...
[ { "created": "Mon, 13 Apr 2009 16:18:04 GMT", "version": "v1" }, { "created": "Thu, 3 Dec 2009 03:31:18 GMT", "version": "v2" }, { "created": "Sat, 23 Jan 2010 04:58:42 GMT", "version": "v3" } ]
2010-04-15
[ [ "Georgi", "Howard", "" ], [ "Kats", "Yevgeny", "" ] ]
We develop techniques for studying the effects of self-interactions in the conformal sector of an unparticle model. Their physics is encoded in the higher n-point functions of the conformal theory. We study inclusive processes and argue that the inclusive production of unparticle stuff in standard model processes due t...
1704.05184
RongGang Ping Dr.
Hong Chen, Rong-Gang Ping
Coherent helicity amplitude for sequential decays
6pages, 1 figure
null
10.1103/PhysRevD.95.076010
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a derivation of coherent helicity amplitudes for a particle decaying into multifinal states with nonzero spins. The results show that the coherent amplitudes introduce additional rotations to transform the helicities into a consistent helicity system, which allows us to add helicity amplitudes for differen...
[ { "created": "Tue, 18 Apr 2017 03:02:53 GMT", "version": "v1" } ]
2017-05-24
[ [ "Chen", "Hong", "" ], [ "Ping", "Rong-Gang", "" ] ]
We present a derivation of coherent helicity amplitudes for a particle decaying into multifinal states with nonzero spins. The results show that the coherent amplitudes introduce additional rotations to transform the helicities into a consistent helicity system, which allows us to add helicity amplitudes for different ...
1412.6187
Amitabha Lahiri
Ambalika Biswas and Amitabha Lahiri
Masses of physical scalars in two Higgs doublet models
v3: 14pp 2fig. Minor changes. Content agrees with published version
Phys. Rev. D 91, 115012 (2015)
10.1103/PhysRevD.91.115012
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We find bounds on scalar masses resulting from a criterion of naturalness, in a broad class of two Higgs doublet models (2HDMs). Specifically, we assume the cancellation of quadratic divergences in what are called the type I, type II, lepton-specific and flipped 2HDMs, with an additional U(1) symmetry. This results i...
[ { "created": "Fri, 19 Dec 2014 00:38:08 GMT", "version": "v1" }, { "created": "Wed, 7 Jan 2015 07:21:20 GMT", "version": "v2" }, { "created": "Thu, 18 Jun 2015 10:18:46 GMT", "version": "v3" } ]
2015-06-19
[ [ "Biswas", "Ambalika", "" ], [ "Lahiri", "Amitabha", "" ] ]
We find bounds on scalar masses resulting from a criterion of naturalness, in a broad class of two Higgs doublet models (2HDMs). Specifically, we assume the cancellation of quadratic divergences in what are called the type I, type II, lepton-specific and flipped 2HDMs, with an additional U(1) symmetry. This results in ...
hep-ph/0402132
Massimo Passera
S. Actis, A. Ferroglia, G. Passarino, M. Passera, S. Uccirati
Two-Loop Tensor Integrals in Quantum Field Theory
95 pages, Latex. Presentation improved, substantial typographical restyling. To be published in Nuclear Physics B
Nucl.Phys. B703 (2004) 3-126
10.1016/j.nuclphysb.2004.10.018
null
hep-ph
null
A comprehensive study is performed of general massive, tensor, two-loop Feynman diagrams with two and three external legs. Reduction to generalized scalar functions is discussed. Integral representations, supporting the same class of smoothness algorithms already employed for the numerical evaluation of ordinary scal...
[ { "created": "Thu, 12 Feb 2004 14:09:05 GMT", "version": "v1" }, { "created": "Thu, 14 Oct 2004 09:05:17 GMT", "version": "v2" } ]
2009-11-10
[ [ "Actis", "S.", "" ], [ "Ferroglia", "A.", "" ], [ "Passarino", "G.", "" ], [ "Passera", "M.", "" ], [ "Uccirati", "S.", "" ] ]
A comprehensive study is performed of general massive, tensor, two-loop Feynman diagrams with two and three external legs. Reduction to generalized scalar functions is discussed. Integral representations, supporting the same class of smoothness algorithms already employed for the numerical evaluation of ordinary scalar...
1206.2590
C. A. de S. Pires
A. G. Dias, C. A. de S. Pires, P. S. Rodrigues da Silva, A. Sampieri
A Simple Realization of the Inverse Seesaw Mechanism
About 14pages, no figures, basis corrected, to appear at the PRD
null
10.1103/PhysRevD.86.035007
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Differently from the canonical seesaw mechanism, which is grounded in grand unified theories, the inverse seesaw mechanism lacks a special framework that realizes it naturally. In this work we advocate that the 3-3-1 model with right-handed neutrinos has such an appropriate framework to accommodate the inverse seesaw...
[ { "created": "Tue, 12 Jun 2012 16:56:59 GMT", "version": "v1" }, { "created": "Fri, 3 Aug 2012 20:07:04 GMT", "version": "v2" } ]
2013-05-30
[ [ "Dias", "A. G.", "" ], [ "Pires", "C. A. de S.", "" ], [ "da Silva", "P. S. Rodrigues", "" ], [ "Sampieri", "A.", "" ] ]
Differently from the canonical seesaw mechanism, which is grounded in grand unified theories, the inverse seesaw mechanism lacks a special framework that realizes it naturally. In this work we advocate that the 3-3-1 model with right-handed neutrinos has such an appropriate framework to accommodate the inverse seesaw m...
hep-ph/0606322
Minoru Nagai
Junji Hisano, Minoru Nagai, Paride Paradisi
New Two-loop Contributions to Hadronic EDMs in the MSSM
13 pages, 6 figures
Phys.Lett. B642 (2006) 510-517
10.1016/j.physletb.2006.07.073
null
hep-ph
null
Flavor-changing terms with CP-violating phases in the quark sector may contribute to the hadronic electric dipole moments (EDMs). However, within the Standard Model (SM), the source of CP violation comes from the unique CKM phase, and it turns out that the EDMs are strongly suppressed. This implies that the EDMs are ...
[ { "created": "Fri, 30 Jun 2006 15:44:51 GMT", "version": "v1" } ]
2009-11-11
[ [ "Hisano", "Junji", "" ], [ "Nagai", "Minoru", "" ], [ "Paradisi", "Paride", "" ] ]
Flavor-changing terms with CP-violating phases in the quark sector may contribute to the hadronic electric dipole moments (EDMs). However, within the Standard Model (SM), the source of CP violation comes from the unique CKM phase, and it turns out that the EDMs are strongly suppressed. This implies that the EDMs are ve...
2107.13940
Piotr Lebiedowicz
Piotr Lebiedowicz, Josef Leutgeb, Otto Nachtmann, Anton Rebhan, Antoni Szczurek
Central exclusive diffractive production of axial-vector $f_{1}$ mesons in proton-proton collisions
Submission to SciPost, presented by P. Lebiedowicz at XXVIII International Workshop on Deep-Inelastic Scattering and Related Subjects, Stony Brook University, New York, USA, 12-16 April 2021, Virtual Conference
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Exclusive production of axial-vector $f_{1}(1285)$ meson in proton-proton collisions via pomeron-pomeron fusion within the tensor-pomeron approach is discussed. Two ways to construct the pomeron-pomeron-$f_{1}$ coupling are presented. We adjust the parameters of our model to the WA102 experimental data and compare wi...
[ { "created": "Thu, 29 Jul 2021 13:01:07 GMT", "version": "v1" } ]
2021-07-30
[ [ "Lebiedowicz", "Piotr", "" ], [ "Leutgeb", "Josef", "" ], [ "Nachtmann", "Otto", "" ], [ "Rebhan", "Anton", "" ], [ "Szczurek", "Antoni", "" ] ]
Exclusive production of axial-vector $f_{1}(1285)$ meson in proton-proton collisions via pomeron-pomeron fusion within the tensor-pomeron approach is discussed. Two ways to construct the pomeron-pomeron-$f_{1}$ coupling are presented. We adjust the parameters of our model to the WA102 experimental data and compare with...
hep-ph/9405425
Terry Goldman
G. Burdman, T. Goldman and D. Wyler
Radiative Leptonic Decays of Heavy Mesons
12 pages, RevTex, 3 uuencoded figures included
Phys.Rev.D51:111-117,1995
10.1103/PhysRevD.51.111
FERMILAB-Pub-94/120-T, LA-UR-94-1637, ZU-TH-10/94
hep-ph nucl-th
null
We compute the photon spectrum and the rate for the decays $B(D)\to l\nu_l\gamma$ These photonic modes constitute a potentially large background for the purely leptonic decays which are used to extract the heavy meson decay constants. While the rate for $D\to l\n\g$ is small, the radiative decay in the $B$ meson case...
[ { "created": "Tue, 31 May 1994 14:50:34 GMT", "version": "v1" } ]
2009-09-25
[ [ "Burdman", "G.", "" ], [ "Goldman", "T.", "" ], [ "Wyler", "D.", "" ] ]
We compute the photon spectrum and the rate for the decays $B(D)\to l\nu_l\gamma$ These photonic modes constitute a potentially large background for the purely leptonic decays which are used to extract the heavy meson decay constants. While the rate for $D\to l\n\g$ is small, the radiative decay in the $B$ meson case c...
hep-ph/0601093
J.D. Vergados
J.D. Vergados (University of Ioannina, Ioannina, Greece), Y. Giomataris (CEA, Saclay, DAPNIA, Gif-sur-Yvette, Cedex, France)
Supernova Detection via a Network of Neutral Current Spherical TPC's
7 pages, 2 figures. Talk presented at the International Symposium on Origin of Matter and Evolution of Galaxies (OMEG05)- New Horizon of Nuclear Astrophysics and Cosmology November 8-11, 2005, University of Tokyo, Tokyo, Japan
AIP Conf.Proc.847:140-146,2006
10.1063/1.2234395
null
hep-ph
null
The coherent contribution of all neutrons in neutrino nucleus scattering due to the neutral current offers a realistic prospect of detecting supernova neutrinos. For a typical supernova at 10 kpc, about 1000 events are expected using a spherical gaseous detector of radius 4 m and employing Xe gas at a pressure of 10 ...
[ { "created": "Thu, 12 Jan 2006 09:55:25 GMT", "version": "v1" } ]
2011-07-19
[ [ "Vergados", "J. D.", "", "University of Ioannina, Ioannina, Greece" ], [ "Giomataris", "Y.", "", "CEA, Saclay, DAPNIA, Gif-sur-Yvette, Cedex, France" ] ]
The coherent contribution of all neutrons in neutrino nucleus scattering due to the neutral current offers a realistic prospect of detecting supernova neutrinos. For a typical supernova at 10 kpc, about 1000 events are expected using a spherical gaseous detector of radius 4 m and employing Xe gas at a pressure of 10 At...
1408.6674
Aram Kotzinian
Aram Kotzinian
Azimuthal Correlations in the Structure Functions of polarized Dihadron Semi-Inclusive Deep Inelastic Scattering
10 pages, 4 figures, PDFLaTeX, Replaced with published version
Phys. Rev. D 91, 054001 (2015)
10.1103/PhysRevD.91.054001
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Azimuthal correlations in two hadron production in deep inelastic scattering of unpolarized leptons off transversely polarized nucleon are discussed. Specifically, a simple approach for accessing ratios of structure functions corresponding to Sivers effect and transversity induced single spin azimuthal asymmetries to...
[ { "created": "Thu, 28 Aug 2014 10:34:57 GMT", "version": "v1" }, { "created": "Tue, 24 Mar 2015 17:14:49 GMT", "version": "v2" } ]
2015-03-25
[ [ "Kotzinian", "Aram", "" ] ]
Azimuthal correlations in two hadron production in deep inelastic scattering of unpolarized leptons off transversely polarized nucleon are discussed. Specifically, a simple approach for accessing ratios of structure functions corresponding to Sivers effect and transversity induced single spin azimuthal asymmetries to u...
1612.06574
Ulrich Ellwanger
Ulrich Ellwanger
Present Status and Future Tests of the Higgsino-Singlino Sector in the NMSSM
16 pages, 2 figures, added discussion on the remaining fine-tuning
null
10.1007/JHEP02(2017)051
LPT Orsay 16-91
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The light higgsino-singlino scenario of the NMSSM allows to combine a naturally small $\mu$ parameter with a good dark matter relic density. Given the new constraints on spin-dependent and spin-independent direct detection cross sections in 2016 we study first which regions in the plane of chargino- and LSP-masses be...
[ { "created": "Tue, 20 Dec 2016 09:58:06 GMT", "version": "v1" }, { "created": "Fri, 23 Dec 2016 09:04:07 GMT", "version": "v2" }, { "created": "Wed, 8 Feb 2017 17:19:42 GMT", "version": "v3" } ]
2017-03-08
[ [ "Ellwanger", "Ulrich", "" ] ]
The light higgsino-singlino scenario of the NMSSM allows to combine a naturally small $\mu$ parameter with a good dark matter relic density. Given the new constraints on spin-dependent and spin-independent direct detection cross sections in 2016 we study first which regions in the plane of chargino- and LSP-masses belo...
hep-ph/9909330
Toshiaki Tomoda
T. Tomoda
0+ -> 2+ neutrinoless double beta decay triggered directly by the Majorana neutrino mass
10 pages, 1 Postscript figure, Latex, uses elsart.sty and epsfig.sty
Phys.Lett. B474 (2000) 245-250
10.1016/S0370-2693(00)00025-3
null
hep-ph
null
We treat 0+ -> 2+ neutrinoless double beta decays taking into account recoil corrections to the nuclear currents. The decay probability can be written as a quadratic form of the effective coupling constants of the right-handed leptonic currents and the effective neutrino mass. We calculate the nuclear matrix elements...
[ { "created": "Sun, 12 Sep 1999 07:08:27 GMT", "version": "v1" } ]
2009-10-31
[ [ "Tomoda", "T.", "" ] ]
We treat 0+ -> 2+ neutrinoless double beta decays taking into account recoil corrections to the nuclear currents. The decay probability can be written as a quadratic form of the effective coupling constants of the right-handed leptonic currents and the effective neutrino mass. We calculate the nuclear matrix elements f...
hep-ph/0110208
Peter Kroll
H.W. Huang (Kobe Univ.), P. Kroll (Wuppertal Univ.) and T. Morii (Kobe Univ.)
Perturbative and non-perturbative QCD corrections to wide-angle Compton scattering
19 pages, 9 figures (using LATEX with epsfig)
Eur.Phys.J.C23:301-310,2002; Erratum-ibid.C31:279,2003
10.1007/s100520100883
WU-B 01-07
hep-ph
null
We investigate corrections to the handbag approach for wide-angle Compton scattering off protons at moderately large momentum transfer: the photon-parton subprocess is calculated to next-to-leading order QCD and contributions from the generalized parton distribution E} are taken into account. Photon and proton helici...
[ { "created": "Tue, 16 Oct 2001 08:49:27 GMT", "version": "v1" } ]
2011-09-13
[ [ "Huang", "H. W.", "", "Kobe Univ." ], [ "Kroll", "P.", "", "Wuppertal Univ." ], [ "Morii", "T.", "", "Kobe\n Univ." ] ]
We investigate corrections to the handbag approach for wide-angle Compton scattering off protons at moderately large momentum transfer: the photon-parton subprocess is calculated to next-to-leading order QCD and contributions from the generalized parton distribution E} are taken into account. Photon and proton helicity...
hep-ph/0501013
Richard Van de Water
G.T. Garvey, A. Green, C. Green, W.C. Louis, G.B. Mills, G. McGregor, H. Ray, R. Schirato, R.G. Van de Water, D.H. White
Measuring Active-Sterile Neutrino Oscillations with a Stopped Pion Neutrino Source
10 pages, 9 figures
Phys.Rev.D72:092001,2005
10.1103/PhysRevD.72.092001
LA-UR-04-8716
hep-ph
null
The question of the existence of light sterile neutrinos is of great interest in many areas of particle physics, astrophysics, and cosmology. Furthermore, should the MiniBooNE experiment at Fermilab confirm the LSND oscillation signal, then new measurements are required to identify the mechanism responsible for these...
[ { "created": "Mon, 3 Jan 2005 23:37:12 GMT", "version": "v1" }, { "created": "Wed, 21 Sep 2005 20:39:49 GMT", "version": "v2" } ]
2008-11-26
[ [ "Garvey", "G. T.", "" ], [ "Green", "A.", "" ], [ "Green", "C.", "" ], [ "Louis", "W. C.", "" ], [ "Mills", "G. B.", "" ], [ "McGregor", "G.", "" ], [ "Ray", "H.", "" ], [ "Schirato", "R.", ...
The question of the existence of light sterile neutrinos is of great interest in many areas of particle physics, astrophysics, and cosmology. Furthermore, should the MiniBooNE experiment at Fermilab confirm the LSND oscillation signal, then new measurements are required to identify the mechanism responsible for these o...
hep-ph/0212303
Konstantin Chetyrkin
P.A. Baikov, K.G. Chetyrkin and J.H. K\"uhn
Five-loop vacuum polarization in pQCD: O(m_q^2\alpha_s^4 n_f^2) contribution
The complete paper is also available via the www at http://www-ttp.physik.uni-karlsruhe.de/Preprints/
Phys.Lett.B559:245-251,2003
10.1016/S0370-2693(03)00186-2
THEP 02/18, TTP02-45
hep-ph
null
We present the analytical calculation of the contribution of order m_q^2 \alpha_s^4 n_f^2 to the absorptive part of the vacuum polarization function of vector currents. This term constitutes an important gauge-invariant part of the full O(m_q^2 alpha_s^4) correction to the total cross-section of e^+ e^- annihilation ...
[ { "created": "Thu, 19 Dec 2002 19:52:28 GMT", "version": "v1" }, { "created": "Tue, 11 Mar 2003 08:28:56 GMT", "version": "v2" } ]
2008-11-26
[ [ "Baikov", "P. A.", "" ], [ "Chetyrkin", "K. G.", "" ], [ "Kühn", "J. H.", "" ] ]
We present the analytical calculation of the contribution of order m_q^2 \alpha_s^4 n_f^2 to the absorptive part of the vacuum polarization function of vector currents. This term constitutes an important gauge-invariant part of the full O(m_q^2 alpha_s^4) correction to the total cross-section of e^+ e^- annihilation in...
hep-ph/0605272
Yaser Ayazi
Seyed Yaser Ayazi, Yasaman Farzan
Reconciling large CP-violating phases with bounds on the electric dipole moments in the MSSM
33 pages, 12 figures
Phys.Rev.D74:055008,2006
10.1103/PhysRevD.74.055008
IPM/P-2006/033
hep-ph
null
The possibility of cancelation between different contributions to d_e, d_n and d_{Hg} has been reconsidered with special emphasis on the region that is phenomenologically interesting (intermediate values of \tan \beta and sub-TeV sfermion masses). It is found that in the range favored by electroweak baryogenesis (\it...
[ { "created": "Thu, 25 May 2006 10:35:32 GMT", "version": "v1" }, { "created": "Sat, 3 Jun 2006 11:59:19 GMT", "version": "v2" }, { "created": "Fri, 9 Jun 2006 07:05:03 GMT", "version": "v3" } ]
2014-11-18
[ [ "Ayazi", "Seyed Yaser", "" ], [ "Farzan", "Yasaman", "" ] ]
The possibility of cancelation between different contributions to d_e, d_n and d_{Hg} has been reconsidered with special emphasis on the region that is phenomenologically interesting (intermediate values of \tan \beta and sub-TeV sfermion masses). It is found that in the range favored by electroweak baryogenesis (\it i...
1708.04737
Ke-Pan Xie
Qing-Hong Cao, Fa Peng Huang, Ke-Pan Xie, Xinmin Zhang
Testing the electroweak phase transition in scalar extension models at lepton colliders
11 pages, 3 figures; published version of Chinese Physics C; English typo corrected
Chinese Physics C Vol. 42, No. 2 (2018) 023103
10.1088/1674-1137/42/2/023103
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the electroweak phase transition in three scalar extension models beyond the Standard Model. Assuming new scalars are decoupled at some heavy scale, we use the covariant derivative expansion method to derive all of the dimension-6 effective operators, whose coefficients are highly correlated in a specific mo...
[ { "created": "Wed, 16 Aug 2017 01:27:20 GMT", "version": "v1" }, { "created": "Mon, 6 Nov 2017 14:16:20 GMT", "version": "v2" }, { "created": "Tue, 16 Jan 2018 21:48:27 GMT", "version": "v3" }, { "created": "Mon, 9 Apr 2018 02:24:09 GMT", "version": "v4" } ]
2018-04-10
[ [ "Cao", "Qing-Hong", "" ], [ "Huang", "Fa Peng", "" ], [ "Xie", "Ke-Pan", "" ], [ "Zhang", "Xinmin", "" ] ]
We study the electroweak phase transition in three scalar extension models beyond the Standard Model. Assuming new scalars are decoupled at some heavy scale, we use the covariant derivative expansion method to derive all of the dimension-6 effective operators, whose coefficients are highly correlated in a specific mode...
2106.03735
Shivaramakrishna Singirala
Shivaramakrishna Singirala, Suchismita Sahoo and Rukmani Mohanta
Light dark matter, rare $B$ decays with missing energy in $L_{\mu}-L_{\tau}$ model with a scalar leptoquark
34 pages, 8 figures, version to appear in PRD
null
10.1103/PhysRevD.105.015033
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the phenomenology of light GeV-scale fermionic dark matter in $U(1)_{L_\mu - L_{\tau}}$ gauge extension of the Standard Model. Heavy neutral fermions alongside with a $S_1(\overline{3}$,$1$,$1/3$) scalar leptoquark and an inert scalar doublet are added to address the flavor anomalies and light neutrino...
[ { "created": "Mon, 7 Jun 2021 16:00:03 GMT", "version": "v1" }, { "created": "Fri, 7 Jan 2022 02:55:33 GMT", "version": "v2" } ]
2022-02-09
[ [ "Singirala", "Shivaramakrishna", "" ], [ "Sahoo", "Suchismita", "" ], [ "Mohanta", "Rukmani", "" ] ]
We investigate the phenomenology of light GeV-scale fermionic dark matter in $U(1)_{L_\mu - L_{\tau}}$ gauge extension of the Standard Model. Heavy neutral fermions alongside with a $S_1(\overline{3}$,$1$,$1/3$) scalar leptoquark and an inert scalar doublet are added to address the flavor anomalies and light neutrino m...
hep-ph/0611059
Utpal Sarkar
E.A. Paschos
Neutrino Masses and Interactions in a Model with Nambu-Goldstone Bosons
Invited talk presented at the Second International Conference on High Energy Physics (CICHEP II), January 14-17, 2006, Cairo, Egypt
AIPConf.Proc.881:108-117,2007
10.1063/1.2435285
null
hep-ph
null
A natural scenario for the generation of neutrino masses is the see-saw mechanism, in which a large right-handed neutrino mass makes the left-handed neutrinos light. We review a special case when the Majorana masses originate from spontaneous breaking of a global U(1)XU(1) symmetry. The interactions of the right-hand...
[ { "created": "Mon, 6 Nov 2006 10:54:20 GMT", "version": "v1" }, { "created": "Wed, 8 Nov 2006 05:40:15 GMT", "version": "v2" } ]
2008-11-26
[ [ "Paschos", "E. A.", "" ] ]
A natural scenario for the generation of neutrino masses is the see-saw mechanism, in which a large right-handed neutrino mass makes the left-handed neutrinos light. We review a special case when the Majorana masses originate from spontaneous breaking of a global U(1)XU(1) symmetry. The interactions of the right-handed...
0909.2501
Joel Jones-Perez
L. Calibbi, J. Jones-Perez, A. Masiero, J.-h. Park, W. Porod, O. Vives
SU(3) Flavour Symmetries and CP Violation
4 pages, 4 figures; to appear in the proceedings of "The 2009 Europhysics Conference on High Energy Physics", 16-22 July 2009, Krakow, Poland
PoS EPS-HEP2009:167,2009
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In order to satisfy current FCNC and CP violation bounds, SUSY flavour structures cannot be generic. An interesting solution to these SUSY Flavour and CP Problems lies on the use of an SU(3) family symmetry which spontaneously breaks CP symmetry. Typical observables of such a model are electric dipole moments and LFV...
[ { "created": "Mon, 14 Sep 2009 09:52:01 GMT", "version": "v1" } ]
2014-11-20
[ [ "Calibbi", "L.", "" ], [ "Jones-Perez", "J.", "" ], [ "Masiero", "A.", "" ], [ "Park", "J. -h.", "" ], [ "Porod", "W.", "" ], [ "Vives", "O.", "" ] ]
In order to satisfy current FCNC and CP violation bounds, SUSY flavour structures cannot be generic. An interesting solution to these SUSY Flavour and CP Problems lies on the use of an SU(3) family symmetry which spontaneously breaks CP symmetry. Typical observables of such a model are electric dipole moments and LFV p...
hep-ph/9704335
Rainer Jakob
R. Jakob, P.J. Mulders and J. Rodrigues
Modelling quark distribution and fragmentation functions
27 pages, Revtex, 12 Postscript figures, uses epsfig.sty
Nucl.Phys. A626 (1997) 937-965
10.1016/S0375-9474(97)00588-5
NIKHEF 97-018, VUTH 97-7
hep-ph
null
The representation of quark distribution and fragmentation functions in terms of non-local operators is combined with a simple spectator model. This allows us to estimate these functions for the nucleon and the pion ensuring correct crossing and support properties. We give estimates for the unpolarized functions as w...
[ { "created": "Wed, 16 Apr 1997 13:58:05 GMT", "version": "v1" } ]
2009-10-30
[ [ "Jakob", "R.", "" ], [ "Mulders", "P. J.", "" ], [ "Rodrigues", "J.", "" ] ]
The representation of quark distribution and fragmentation functions in terms of non-local operators is combined with a simple spectator model. This allows us to estimate these functions for the nucleon and the pion ensuring correct crossing and support properties. We give estimates for the unpolarized functions as wel...
1411.1236
Binur Shaikhatdenov
A.V. Kotikov, V.G. Krivokhizhin, B.G. Shaikhatdenov
Improved nonsinglet QCD analysis of the fixed-target DIS data
19 pages, 11 figs, 8 tables, published in JPG42. arXiv admin note: text overlap with arXiv:0912.4672
null
10.1088/0954-3899/42/9/095004
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Deep inelastic scattering data on $F_2$ structure function obtained by BCDMS, SLAC and NMC collaborations in fixed-target experiments were analyzed in the non-singlet approximation with next-to-next-to-leading-order accuracy. The strong coupling constant is found to be $\alpha_s(M_Z^2) = 0.1157 \pm 0.0022 (total\,\,\...
[ { "created": "Wed, 5 Nov 2014 11:39:20 GMT", "version": "v1" }, { "created": "Tue, 1 Sep 2015 06:25:30 GMT", "version": "v2" } ]
2015-09-02
[ [ "Kotikov", "A. V.", "" ], [ "Krivokhizhin", "V. G.", "" ], [ "Shaikhatdenov", "B. G.", "" ] ]
Deep inelastic scattering data on $F_2$ structure function obtained by BCDMS, SLAC and NMC collaborations in fixed-target experiments were analyzed in the non-singlet approximation with next-to-next-to-leading-order accuracy. The strong coupling constant is found to be $\alpha_s(M_Z^2) = 0.1157 \pm 0.0022 (total\,\,\,e...
hep-ph/0403160
Agnes Mocsy
A.Mocsy, F.Sannino, K.Tuominen
Confinement and Chiral Symmetry
4 pages, 1 figure, proceedings of Quark Matter 2004
J.Phys. G30 (2004) S1255-S1258
10.1088/0954-3899/30/8/102
null
hep-ph
null
We illustrate why color deconfines when chiral symmetry is restored in gauge theories with quarks in the fundamental representation, and while these transitions do not need to coincide when quarks are in the adjoint representation, entanglement between them is still present.
[ { "created": "Mon, 15 Mar 2004 13:14:57 GMT", "version": "v1" } ]
2015-06-25
[ [ "Mocsy", "A.", "" ], [ "Sannino", "F.", "" ], [ "Tuominen", "K.", "" ] ]
We illustrate why color deconfines when chiral symmetry is restored in gauge theories with quarks in the fundamental representation, and while these transitions do not need to coincide when quarks are in the adjoint representation, entanglement between them is still present.
hep-ph/9404201
null
K. Farakos, K. Kajantie, K. Rummukainen and M. Shaposhnikov
3D Physics and the Electroweak Phase Transition: Perturbation Theory
44 pages, preprint CERN-TH.6973/94
Nucl.Phys. B425 (1994) 67-109
10.1016/0550-3213(94)90173-2
null
hep-ph
null
We develop a method for the construction of the effective potential at high temperatures based on the effective field theory approach and renormalization group. It allows one to sum up the leading logarithms in all orders of perturbation theory. The method reproduces the known one-loop and two-loop results in a very ...
[ { "created": "Fri, 1 Apr 1994 12:09:00 GMT", "version": "v1" } ]
2009-10-28
[ [ "Farakos", "K.", "" ], [ "Kajantie", "K.", "" ], [ "Rummukainen", "K.", "" ], [ "Shaposhnikov", "M.", "" ] ]
We develop a method for the construction of the effective potential at high temperatures based on the effective field theory approach and renormalization group. It allows one to sum up the leading logarithms in all orders of perturbation theory. The method reproduces the known one-loop and two-loop results in a very si...
hep-ph/9707246
Massimo Giovannini
Massimo Giovannini (Departement of Applied Mathematics and Theoretical Physics, Cambridge)
Resonant and non-resonant amplification of massless gauge fields during an oscillating dilaton phase
16 A4 pages in Latex style plus four figures combined into an eps file
null
10.1103/PhysRevD.56.631
DAMTP-97-54, to appear in Physical Review D, july 1997
hep-ph gr-qc hep-th
null
The resonant and non-resonant amplification of electromagnetic inhomogeneities is investigated within a phase of coherent dilaton oscillations. We show, in some explicit toy model, how the critical energy density bound applied to the amplified fluctuations of the massless gauge fields can constrain the dilaton mass.
[ { "created": "Fri, 4 Jul 1997 10:40:06 GMT", "version": "v1" } ]
2009-10-30
[ [ "Giovannini", "Massimo", "", "Departement of Applied Mathematics and Theoretical\n Physics, Cambridge" ] ]
The resonant and non-resonant amplification of electromagnetic inhomogeneities is investigated within a phase of coherent dilaton oscillations. We show, in some explicit toy model, how the critical energy density bound applied to the amplified fluctuations of the massless gauge fields can constrain the dilaton mass.
hep-ph/0702054
Chao-Hsi Chang
Chao-Hsi Chang, Jian-Xiong Wang and Xing-Gang Wu
GENXICC: A Generator for Hadronic Production of the Double Heavy Baryons $\Xi_{cc}$, $\Xi_{bc}$ and $\Xi_{bb}$
27 pages, 8 figures, an article on a M.C. generator (the relevant program is not involved but it can be obtained from the authors). submitted to CPC
Comput.Phys.Commun.177:467-478,2007
10.1016/j.cpc.2007.05.012
null
hep-ph
null
We write down a generator program for the hadronic production of the double-heavy baryons $\Xi_{cc}$, $\Xi_{bc}$ and $\Xi_{bb}$ according to relevant publications. We name it as GENXICC and we test it by comparing its numerical results with those in references. It is written in a PYTHIA-compatible format and it can b...
[ { "created": "Mon, 5 Feb 2007 10:07:37 GMT", "version": "v1" }, { "created": "Thu, 19 Apr 2007 10:57:20 GMT", "version": "v2" } ]
2008-11-26
[ [ "Chang", "Chao-Hsi", "" ], [ "Wang", "Jian-Xiong", "" ], [ "Wu", "Xing-Gang", "" ] ]
We write down a generator program for the hadronic production of the double-heavy baryons $\Xi_{cc}$, $\Xi_{bc}$ and $\Xi_{bb}$ according to relevant publications. We name it as GENXICC and we test it by comparing its numerical results with those in references. It is written in a PYTHIA-compatible format and it can be ...
hep-ph/9909411
Martin Schmaltz
Nima Arkani-Hamed, Yuval Grossman and Martin Schmaltz
Split Fermions in Extra Dimensions and Exponentially Small Cross-Sections at Future Colliders
18 pages, 3 figures
Phys.Rev.D61:115004,2000
10.1103/PhysRevD.61.115004
UCB-PTH-99/41, LBNL-44254, SLAC-PUB-8250
hep-ph
null
We point out a dramatic new experimental signature for a class of theories with extra dimensions, where quarks and leptons are localized at slightly separated parallel ``walls'' whereas gauge and Higgs fields live in the bulk of the extra dimensions. The separation forbids direct local couplings between quarks and le...
[ { "created": "Thu, 16 Sep 1999 23:46:15 GMT", "version": "v1" } ]
2010-04-06
[ [ "Arkani-Hamed", "Nima", "" ], [ "Grossman", "Yuval", "" ], [ "Schmaltz", "Martin", "" ] ]
We point out a dramatic new experimental signature for a class of theories with extra dimensions, where quarks and leptons are localized at slightly separated parallel ``walls'' whereas gauge and Higgs fields live in the bulk of the extra dimensions. The separation forbids direct local couplings between quarks and lept...
1805.06876
Shin Kobayashi
Masahiro Ibe, Ayuki Kamada, Shin Kobayashi and Wakutaka Nakano
Composite Asymmetric Dark Matter with a Dark Photon Portal
18 pages, 1 figures; presentation refined, results unchanged; matched to the JHEP version
null
10.1007/JHEP11(2018)203
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Asymmetric dark matter (ADM) is an attractive framework relating the observed baryon asymmetry of the Universe to the dark matter density. A composite particle in a new strong dynamics is a promising candidate for ADM as the strong dynamics naturally explains the ADM mass in the GeV range. Its large annihilation cros...
[ { "created": "Thu, 17 May 2018 17:37:50 GMT", "version": "v1" }, { "created": "Tue, 19 Jun 2018 06:21:27 GMT", "version": "v2" }, { "created": "Thu, 6 Dec 2018 08:30:48 GMT", "version": "v3" } ]
2018-12-26
[ [ "Ibe", "Masahiro", "" ], [ "Kamada", "Ayuki", "" ], [ "Kobayashi", "Shin", "" ], [ "Nakano", "Wakutaka", "" ] ]
Asymmetric dark matter (ADM) is an attractive framework relating the observed baryon asymmetry of the Universe to the dark matter density. A composite particle in a new strong dynamics is a promising candidate for ADM as the strong dynamics naturally explains the ADM mass in the GeV range. Its large annihilation cross ...
1401.1844
Bernd Kniehl
Bernd A. Kniehl, Oleg L. Veretin
Two-loop electroweak threshold corrections to the bottom and top Yukawa couplings
22 pages, 3 figures, matches journal publication including corrigendum
Nucl. Phys. B 885 (2014) 459-480; B 894 (2015) 56-57
10.1016/j.nuclphysb.2014.05.029; 10.1016/j.nuclphysb.2015.02.012
DESY 14-006
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the relationship between the $\overline{\mathrm{MS}}$ Yukawa coupling and the pole mass for the bottom and top quarks at the two-loop electroweak order ${\cal O}(\alpha^2)$ in the gaugeless limit of the standard model. We also consider the $\overline{\mathrm{MS}}$ to pole mass relationships at this order, wh...
[ { "created": "Wed, 8 Jan 2014 21:44:44 GMT", "version": "v1" }, { "created": "Thu, 22 May 2014 08:26:01 GMT", "version": "v2" }, { "created": "Fri, 20 Jun 2014 12:28:48 GMT", "version": "v3" }, { "created": "Tue, 5 May 2015 12:02:27 GMT", "version": "v4" } ]
2015-05-06
[ [ "Kniehl", "Bernd A.", "" ], [ "Veretin", "Oleg L.", "" ] ]
We study the relationship between the $\overline{\mathrm{MS}}$ Yukawa coupling and the pole mass for the bottom and top quarks at the two-loop electroweak order ${\cal O}(\alpha^2)$ in the gaugeless limit of the standard model. We also consider the $\overline{\mathrm{MS}}$ to pole mass relationships at this order, whic...
hep-ph/9411217
Annette Holtkamp
A. Ringwald and F. Schrempp
Towards the Phenomenology of QCD-Instanton Induced Particle Production
32 pages, latex, epsfig, 11 uuencoded figures
null
null
DESY 94-197
hep-ph
null
We present a first status report on a broad and systematic study of possible manifestations of QCD-instantons at HERA. Considerable motivation comes from the close analogy between instanton-induced $B+L$ violation in electroweak processes and effects of QCD-instantons in deep inelastic scattering. We concentrate on t...
[ { "created": "Thu, 3 Nov 1994 14:43:27 GMT", "version": "v1" } ]
2007-05-23
[ [ "Ringwald", "A.", "" ], [ "Schrempp", "F.", "" ] ]
We present a first status report on a broad and systematic study of possible manifestations of QCD-instantons at HERA. Considerable motivation comes from the close analogy between instanton-induced $B+L$ violation in electroweak processes and effects of QCD-instantons in deep inelastic scattering. We concentrate on the...
1804.06233
Ram Brustein
Ram Brustein, Yael Raveh
Signatures of HyperCharge Axions at Contemporary and Future Colliders
24 pages, 8 figures
Phys. Rev. D 98, 055010 (2018)
10.1103/PhysRevD.98.055010
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the possible detection of the Hypercharge Axion (HCA) in colliders. The HCA is a hypothetical pseudoscalar that couples to weak hypercharge topological density and could potentially explain the dominance of matter over antimatter in the observable universe. If the HCA exists, it can be produced in coll...
[ { "created": "Tue, 17 Apr 2018 13:34:27 GMT", "version": "v1" } ]
2018-09-19
[ [ "Brustein", "Ram", "" ], [ "Raveh", "Yael", "" ] ]
We investigate the possible detection of the Hypercharge Axion (HCA) in colliders. The HCA is a hypothetical pseudoscalar that couples to weak hypercharge topological density and could potentially explain the dominance of matter over antimatter in the observable universe. If the HCA exists, it can be produced in collid...
hep-ph/0211325
Edward A. Baltz
E. A. Baltz and L. Bergstrom
Detection of Leptonic Dark Matter
7 pages, 3 figures
Phys.Rev. D67 (2003) 043516
10.1103/PhysRevD.67.043516
null
hep-ph astro-ph
null
Weakly interacting massive particles (WIMPs) are among the favored candidates for cold dark matter in the universe. The phenomenology of supersymmetric WIMPs has been quite developed during recent years. However, there are other possibilities which have not been discussed as much. One example is a right-handed massiv...
[ { "created": "Wed, 20 Nov 2002 20:38:46 GMT", "version": "v1" } ]
2009-11-07
[ [ "Baltz", "E. A.", "" ], [ "Bergstrom", "L.", "" ] ]
Weakly interacting massive particles (WIMPs) are among the favored candidates for cold dark matter in the universe. The phenomenology of supersymmetric WIMPs has been quite developed during recent years. However, there are other possibilities which have not been discussed as much. One example is a right-handed massive ...