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1205.5698
Luca Merlo Dr.
Luca Merlo
Theoretical Models for Neutrino Masses
8 pages, 3 figures. Contribution at "Les Rencontres de Physique de la Vall\'ee d'Aoste". To be published as an issue of Nuovo Cimento C
null
10.1393/ncc/i2012-11351-1
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The recent measurements of the neutrino reactor angle require a re-examination of flavour models based on discrete groups. Indeed, when these models deal with the Tri-Bimaximal, the Bimaximal and the Golden Ratio mixing patterns, some tensions arise in order to accommodate the reactor angle. In particular, strong con...
[ { "created": "Fri, 25 May 2012 13:59:58 GMT", "version": "v1" } ]
2022-03-02
[ [ "Merlo", "Luca", "" ] ]
The recent measurements of the neutrino reactor angle require a re-examination of flavour models based on discrete groups. Indeed, when these models deal with the Tri-Bimaximal, the Bimaximal and the Golden Ratio mixing patterns, some tensions arise in order to accommodate the reactor angle. In particular, strong const...
0909.4334
Ernesto A. Matute
Ernesto A. Matute
Presymmetry beyond the Standard Model
6 pages, 11 figures. To be published in the proceedings of DPF-2009, Detroit, MI, July 2009, eConf C090726
null
10.1142/S0217732309031314
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We go beyond the Standard Model guided by presymmetry, the discrete electroweak quark-lepton symmetry hidden by topological effects which explain quark fractional charges as in condense matter physics. Partners of the particles of the Standard Model and the discrete symmetry associated with this partnership appear as...
[ { "created": "Wed, 23 Sep 2009 22:44:40 GMT", "version": "v1" } ]
2015-05-14
[ [ "Matute", "Ernesto A.", "" ] ]
We go beyond the Standard Model guided by presymmetry, the discrete electroweak quark-lepton symmetry hidden by topological effects which explain quark fractional charges as in condense matter physics. Partners of the particles of the Standard Model and the discrete symmetry associated with this partnership appear as m...
0912.5161
Oldrich Kepka
E. Chapon, O. Kepka, C. Royon
Anomalous quartic WWgamma gamma, ZZgamma gamma, and trilinear WWgamma couplings in two-photon processes at high luminosity at the LHC
22 pages, 17 figures, sumitted to Phys. Rev. D
Phys.Rev.D81:074003,2010
10.1103/PhysRevD.81.074003
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the W/Z pair production via two-photon exchange at the LHC and give the sensitivities on trilinear and quartic gauge anomalous couplings between photons and W/Z bosons for an integrated luminosity of 30 and 200 fb^{-1}. For simplicity and to obtain lower backgrounds, only the leptonic decays of the electrowe...
[ { "created": "Mon, 28 Dec 2009 11:59:50 GMT", "version": "v1" } ]
2010-04-21
[ [ "Chapon", "E.", "" ], [ "Kepka", "O.", "" ], [ "Royon", "C.", "" ] ]
We study the W/Z pair production via two-photon exchange at the LHC and give the sensitivities on trilinear and quartic gauge anomalous couplings between photons and W/Z bosons for an integrated luminosity of 30 and 200 fb^{-1}. For simplicity and to obtain lower backgrounds, only the leptonic decays of the electroweak...
1104.3342
Joaquim Matias
Sebastien Descotes-Genon, Diptimoy Ghosh, Joaquim Matias, Marc Ramon
Exploring New Physics in the C7-C7' plane
54 pages, 16 figures, 15 tables. Normalization factor introduced for the integrated AFB and FL in Sec.2.5 (Eq.2.35-2.38). Conclusions unchanged. Not updated in JHEP
null
10.1007/JHEP06(2011)099
TIFR/TH/11-13, UAB-FT/693, LPT-ORSAY/11-31
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Wilson coefficient C7 governing the radiative electromagnetic decays of B meson has been calculated to a very high accuracy in the Standard Model, but experimental bounds on either the magnitude or the sign of C7 are often model-dependent. In the present paper, we attempt at constraining both the magnitude and si...
[ { "created": "Sun, 17 Apr 2011 20:00:03 GMT", "version": "v1" }, { "created": "Thu, 16 Jun 2011 10:37:08 GMT", "version": "v2" }, { "created": "Wed, 18 Jul 2012 13:57:54 GMT", "version": "v3" } ]
2015-05-27
[ [ "Descotes-Genon", "Sebastien", "" ], [ "Ghosh", "Diptimoy", "" ], [ "Matias", "Joaquim", "" ], [ "Ramon", "Marc", "" ] ]
The Wilson coefficient C7 governing the radiative electromagnetic decays of B meson has been calculated to a very high accuracy in the Standard Model, but experimental bounds on either the magnitude or the sign of C7 are often model-dependent. In the present paper, we attempt at constraining both the magnitude and sign...
1101.2902
Oram Gedalia
Cedric Delaunay, Oram Gedalia, Seung J. Lee, Gilad Perez, Eduardo Ponton
Extraordinary Phenomenology from Warped Flavor Triviality
6 pages, 3 figures. Updated the EDM bound on the anarchic scenario; extended discussion on the KK gluon's width, discovery potential and resulting dijet signal; matches published version
Phys.Lett.B703:486-490,2011
10.1016/j.physletb.2011.08.031
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Anarchic warped extra dimensional models provide a solution to the hierarchy problem. They can also account for the observed flavor hierarchies, but only at the expense of little hierarchy and CP problems, which naturally require a Kaluza-Klein (KK) scale beyond the LHC reach. We have recently shown that when flavor ...
[ { "created": "Fri, 14 Jan 2011 21:02:47 GMT", "version": "v1" }, { "created": "Sun, 11 Sep 2011 07:32:32 GMT", "version": "v2" } ]
2011-09-13
[ [ "Delaunay", "Cedric", "" ], [ "Gedalia", "Oram", "" ], [ "Lee", "Seung J.", "" ], [ "Perez", "Gilad", "" ], [ "Ponton", "Eduardo", "" ] ]
Anarchic warped extra dimensional models provide a solution to the hierarchy problem. They can also account for the observed flavor hierarchies, but only at the expense of little hierarchy and CP problems, which naturally require a Kaluza-Klein (KK) scale beyond the LHC reach. We have recently shown that when flavor is...
1512.01328
Markus Diehl
Markus Diehl
Introduction to GPDs and TMDs
12 pages, 8 figures. v2: reference corrected
null
10.1140/epja/i2016-16149-3
DESY 15-234
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Generalised parton distributions (GPDs) and transverse momentum dependent parton distributions (TMDs) describe complementary aspects of the three-dimensional structure of hadrons. We discuss their relation to each other and recall important theory results concerning their properties and their connection with physical...
[ { "created": "Fri, 4 Dec 2015 07:22:45 GMT", "version": "v1" }, { "created": "Mon, 14 Dec 2015 15:04:20 GMT", "version": "v2" } ]
2016-06-22
[ [ "Diehl", "Markus", "" ] ]
Generalised parton distributions (GPDs) and transverse momentum dependent parton distributions (TMDs) describe complementary aspects of the three-dimensional structure of hadrons. We discuss their relation to each other and recall important theory results concerning their properties and their connection with physical o...
hep-ph/0309347
Gary Steigman
Gary Steigman
Forensic Cosmology: Probing Baryons and Neutrinos With BBN and the CBR
To appear in the proceedings of the IVth Marseille International Cosmology Conference, "Where Cosmology and Fundamental Physics Meet". 12 pages, 9 figures
null
null
null
hep-ph astro-ph
null
The primordial abundances of the light nuclides produced by Big Bang Nucleosynthesis (BBN) during the first 20 minutes in the evolution of the Universe are sensitive to the universal density of baryons and to the expansion rate of the early Universe. For example, while deuterium is an excellent baryometer, helium-4 p...
[ { "created": "Tue, 30 Sep 2003 19:25:10 GMT", "version": "v1" }, { "created": "Tue, 30 Sep 2003 20:52:16 GMT", "version": "v2" } ]
2007-05-23
[ [ "Steigman", "Gary", "" ] ]
The primordial abundances of the light nuclides produced by Big Bang Nucleosynthesis (BBN) during the first 20 minutes in the evolution of the Universe are sensitive to the universal density of baryons and to the expansion rate of the early Universe. For example, while deuterium is an excellent baryometer, helium-4 pro...
1309.1465
Anson Hook
Anson Hook
Naturalness from stop decays
15 pages, 6 figures, added citations, Journal version
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In supersymmetric theories, there is a scalar quartic related to the top and bottom yukawas that gives LHC observable decays of the stop or sbottom. After electroweak symmetry breaking, this quartic induces the decay of the stop (sbottom) to a charged Higgs and the sbottom (stop) without allowing for the correspondin...
[ { "created": "Thu, 5 Sep 2013 20:00:00 GMT", "version": "v1" }, { "created": "Tue, 24 Sep 2013 18:27:54 GMT", "version": "v2" } ]
2013-09-25
[ [ "Hook", "Anson", "" ] ]
In supersymmetric theories, there is a scalar quartic related to the top and bottom yukawas that gives LHC observable decays of the stop or sbottom. After electroweak symmetry breaking, this quartic induces the decay of the stop (sbottom) to a charged Higgs and the sbottom (stop) without allowing for the corresponding ...
0708.4098
Tomohiro Matsuda
Tomohiro Matsuda
Hybrid Curvatons from Broken Symmetry
21pages, 5 figures, accepted for publication in JHEP
JHEP0709:027,2007
10.1088/1126-6708/2007/09/027
null
hep-ph astro-ph hep-th
null
We present a new general mechanism for generating curvature perturbations after inflation. Our model is based on the simple assumption that a field that starts to oscillate after inflation has a potential characterized by an underlying global symmetry that is slightly or badly broken. Inhomogeneous preheating occurs ...
[ { "created": "Thu, 30 Aug 2007 08:13:41 GMT", "version": "v1" } ]
2008-11-26
[ [ "Matsuda", "Tomohiro", "" ] ]
We present a new general mechanism for generating curvature perturbations after inflation. Our model is based on the simple assumption that a field that starts to oscillate after inflation has a potential characterized by an underlying global symmetry that is slightly or badly broken. Inhomogeneous preheating occurs du...
1701.08214
Geoffrey T. Bodwin
Geoffrey T. Bodwin, Eric Braaten
Comment on "Single-inclusive jet production in electron-nucleon collisions through next-to-next-to-leading order in perturbative QCD" [Phys. Lett. B 763, 52--59 (2016)]
5 pages, minor corrections, version published in Physics Letters B
Phys. Lett. B 769 (2017) 82
10.1016/j.physletb.2017.03.033
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the cross section for single-inclusive jet production in electron-nucleon collisions, the distribution of a quark in an electron appears at next-to-next-to-leading order. The numerical calculations in Ref. [1] were carried out using a perturbative approximation for the distribution of a quark in an electron. We po...
[ { "created": "Fri, 27 Jan 2017 22:52:51 GMT", "version": "v1" }, { "created": "Mon, 13 Feb 2017 23:57:10 GMT", "version": "v2" }, { "created": "Wed, 22 Mar 2017 21:31:00 GMT", "version": "v3" } ]
2017-03-29
[ [ "Bodwin", "Geoffrey T.", "" ], [ "Braaten", "Eric", "" ] ]
In the cross section for single-inclusive jet production in electron-nucleon collisions, the distribution of a quark in an electron appears at next-to-next-to-leading order. The numerical calculations in Ref. [1] were carried out using a perturbative approximation for the distribution of a quark in an electron. We poin...
hep-ph/0205112
Zhang Zhao-xi
Chao-Hsi Chang (Zhao-Xi Chang)
The decays of $B_c$ meson to P-wave charmonium $\chi_c(h_c)$ and to leptons with gluon bremsstrahlung
4 pages, latex, A talk presented in XXXVIIth Rencontres de Moriond on QCD and High Energy Hadronic Interactions
null
null
null
hep-ph
null
Theoretical computations on the decays of $B_c$ meson to $P$-wave charmonium $\chi_c$ or $h_c$ with some particle(s) else and on the decays of $B_c$ meson to leptons with gluon bremsstrahlung, and the results as well are outlined.
[ { "created": "Sun, 12 May 2002 04:26:14 GMT", "version": "v1" } ]
2007-05-23
[ [ "Chang", "Chao-Hsi", "", "Zhao-Xi Chang" ] ]
Theoretical computations on the decays of $B_c$ meson to $P$-wave charmonium $\chi_c$ or $h_c$ with some particle(s) else and on the decays of $B_c$ meson to leptons with gluon bremsstrahlung, and the results as well are outlined.
2110.01198
Toshifumi Yamada
Naoyuki Haba and Toshifumi Yamada
Moderately Suppressed Dimension-five Proton Decay in a Flipped $SU(5)$ Model
22 pages, 2 figures. Version accepted for publication in JHEP
null
10.1007/JHEP01(2022)061
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study colored Higgsino-mediated proton decay (dimension-five proton decay) in a model based on the flipped $SU(5)$ GUT. In the model, the GUT-breaking ${\bf10}$, ${\bf \overline{10}}$ fields have a GUT-scale mass term and gain VEVs through higher-dimensional operators, which induces an effective mass term between ...
[ { "created": "Mon, 4 Oct 2021 05:33:25 GMT", "version": "v1" }, { "created": "Thu, 14 Oct 2021 08:09:13 GMT", "version": "v2" }, { "created": "Tue, 4 Jan 2022 03:15:22 GMT", "version": "v3" } ]
2022-02-02
[ [ "Haba", "Naoyuki", "" ], [ "Yamada", "Toshifumi", "" ] ]
We study colored Higgsino-mediated proton decay (dimension-five proton decay) in a model based on the flipped $SU(5)$ GUT. In the model, the GUT-breaking ${\bf10}$, ${\bf \overline{10}}$ fields have a GUT-scale mass term and gain VEVs through higher-dimensional operators, which induces an effective mass term between th...
hep-ph/9806268
E. Martynov
P.Desgrolard (IPNL, Lyon, France), A.Lengyel (IEP, Uzhgorod, Ukraine), E.Martynov (N.N.Bogoliubov ITP, Kiev, Ukraine)
New possibilities of old soft pomeron in DIS
19 pages LaTeX, 10 eps figures included, one of figure captions is corrected
Eur.Phys.J.C7:655-667,1999
10.1007/s100529901036
LYCEN 9835
hep-ph
null
A traditional Regge model with a $Q^2$-independent Pomeron intercept closed (or equal) to one is constructed in order to describe the available data on the proton structure function. A Dipole Pomeron model which does not explicitly violate unitarity is developed and investigated. An excellent agreement with the 1209 ...
[ { "created": "Fri, 5 Jun 1998 01:20:56 GMT", "version": "v1" }, { "created": "Thu, 11 Jun 1998 22:02:56 GMT", "version": "v2" } ]
2014-11-17
[ [ "Desgrolard", "P.", "", "IPNL, Lyon, France" ], [ "Lengyel", "A.", "", "IEP, Uzhgorod, Ukraine" ], [ "Martynov", "E.", "", "N.N.Bogoliubov ITP, Kiev, Ukraine" ] ]
A traditional Regge model with a $Q^2$-independent Pomeron intercept closed (or equal) to one is constructed in order to describe the available data on the proton structure function. A Dipole Pomeron model which does not explicitly violate unitarity is developed and investigated. An excellent agreement with the 1209 da...
0708.2735
Stephen D. H. Hsu
N.G. Deshpande, Stephen D.H. Hsu, Jing Jiang
Long range forces and limits on unparticle interactions
7 pages, revtex; v2 minor changes and added references
Phys.Lett.B659:888-890,2008
10.1016/j.physletb.2007.12.018
null
hep-ph
null
Couplings between standard model particles and unparticles from a nontrivial scale invariant sector can lead to long range forces. If the forces couple to quantities such as baryon or lepton (electron) number, stringent limits result from tests of the gravitational inverse square law. These limits are much stronger t...
[ { "created": "Tue, 21 Aug 2007 00:10:45 GMT", "version": "v1" }, { "created": "Fri, 24 Aug 2007 22:54:27 GMT", "version": "v2" } ]
2008-11-26
[ [ "Deshpande", "N. G.", "" ], [ "Hsu", "Stephen D. H.", "" ], [ "Jiang", "Jing", "" ] ]
Couplings between standard model particles and unparticles from a nontrivial scale invariant sector can lead to long range forces. If the forces couple to quantities such as baryon or lepton (electron) number, stringent limits result from tests of the gravitational inverse square law. These limits are much stronger tha...
hep-ph/0004029
Carlo Ewerz
Jochen Bartels, Carlo Ewerz, Ren\'e Staritzbichler
Effect of the Charm Quark Mass on the BFKL gamma^* gamma^* Total Cross Section at LEP
10 pages, 6 figures
Phys.Lett. B492 (2000) 56-62
10.1016/S0370-2693(00)01080-7
Cavendish-HEP-00/01, DAMTP-2000-36, DESY 00-055
hep-ph
null
We perform a numerical study of various improvements of the LO BFKL prediction for the gamma^* gamma^* total cross section in the kinematical region of the L3 detector at LEP. In particular, we study the effects of a massive charm quark and of different photon polarizations. The variation of the BFKL prediction under...
[ { "created": "Tue, 4 Apr 2000 16:05:10 GMT", "version": "v1" } ]
2009-10-31
[ [ "Bartels", "Jochen", "" ], [ "Ewerz", "Carlo", "" ], [ "Staritzbichler", "René", "" ] ]
We perform a numerical study of various improvements of the LO BFKL prediction for the gamma^* gamma^* total cross section in the kinematical region of the L3 detector at LEP. In particular, we study the effects of a massive charm quark and of different photon polarizations. The variation of the BFKL prediction under c...
2401.06632
Danila Sopin
V. A. Beylin, M. Yu. Khlopov, D. O. Sopin
Balancing baryon and asymmetric dark matter excess
This paper will be published in Proceedings of the 26th Bled Workshop "What Comes Beyond Standard Models", 2023 yr, 12 pages, 7 figures
null
null
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Effect of the electroweak non-conservation of the baryon number could be a key ingredient to explain the ratio of dark and baryonic densities. If dark matter is explained by dark atoms, in which stable -2n charged particles are bound with n nuclei of primordial helium, and this multiple charged particles possess SU(2...
[ { "created": "Fri, 12 Jan 2024 15:26:07 GMT", "version": "v1" } ]
2024-01-15
[ [ "Beylin", "V. A.", "" ], [ "Khlopov", "M. Yu.", "" ], [ "Sopin", "D. O.", "" ] ]
Effect of the electroweak non-conservation of the baryon number could be a key ingredient to explain the ratio of dark and baryonic densities. If dark matter is explained by dark atoms, in which stable -2n charged particles are bound with n nuclei of primordial helium, and this multiple charged particles possess SU(2) ...
1807.11757
Ran Ding
Tairan Liang, Bin Zhu, Ran Ding, Tianjun Li
Direct Detection of Axion-Like Particles in Bismuth-Based Topological Insulators
7 pages, 2 figures, matches published version in IJMPA
null
10.1142/S0217751X1850135X
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In recent years a new field emerged in dark matter community and immediately attracted a multitude of theoriests and experimentalists, that of light dark matter direct detection in electronic systems. The phenomenon is similar with nuclear recoil in elastic scattering between dark matter and nucleus but with differen...
[ { "created": "Tue, 31 Jul 2018 11:05:42 GMT", "version": "v1" } ]
2018-08-29
[ [ "Liang", "Tairan", "" ], [ "Zhu", "Bin", "" ], [ "Ding", "Ran", "" ], [ "Li", "Tianjun", "" ] ]
In recent years a new field emerged in dark matter community and immediately attracted a multitude of theoriests and experimentalists, that of light dark matter direct detection in electronic systems. The phenomenon is similar with nuclear recoil in elastic scattering between dark matter and nucleus but with different ...
hep-ph/9307300
null
U. Baur
Probing the $WW\gamma$ Vertex in Radiative $b$-Quark Decays
3 pages, LaTeX, B_PHYS.STY file supplied, 2 embedded figures enclosed as uuencoded postscript file, FSU-HEP-930719, to appear in the Proceedings of the Workshop on B physics at Hadron Accelerators, Snowmass, CO, June 21 - July 2, 1993
null
null
null
hep-ph
null
The recent CLEO results on on radiative $b$-quark decays are used to derive constraints on anomalous $WW\gamma$ couplings. These constraints are compared with expectations from $p\bar p\rightarrow e^\pm p\llap/_T\gamma+X$ at the Tevatron. The usefulness of exclusive radiative $B$ meson decay channels in probing the $...
[ { "created": "Mon, 19 Jul 1993 22:16:22 GMT", "version": "v1" } ]
2007-05-23
[ [ "Baur", "U.", "" ] ]
The recent CLEO results on on radiative $b$-quark decays are used to derive constraints on anomalous $WW\gamma$ couplings. These constraints are compared with expectations from $p\bar p\rightarrow e^\pm p\llap/_T\gamma+X$ at the Tevatron. The usefulness of exclusive radiative $B$ meson decay channels in probing the $WW...
1505.06731
Yevgeny Kats
Yevgeny Kats
Measuring polarization of light quarks at ATLAS and CMS
16 pages; v2: minor improvements, published version
Phys. Rev. D 92, 071503 (2015)
10.1103/PhysRevD.92.071503
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Polarization of strange quarks is preserved to a high degree when they hadronize into Lambda baryons, as observed in Z decays at LEP. This opens up the possibility for ATLAS and CMS to use strange-quark polarization measurements as a characterization tool for new physics scenarios that produce such quarks. Measuremen...
[ { "created": "Mon, 25 May 2015 20:00:18 GMT", "version": "v1" }, { "created": "Wed, 14 Oct 2015 14:45:13 GMT", "version": "v2" } ]
2015-11-04
[ [ "Kats", "Yevgeny", "" ] ]
Polarization of strange quarks is preserved to a high degree when they hadronize into Lambda baryons, as observed in Z decays at LEP. This opens up the possibility for ATLAS and CMS to use strange-quark polarization measurements as a characterization tool for new physics scenarios that produce such quarks. Measurements...
1011.4950
Manfred Lindner
Manfred Lindner, Alexander Merle and Viviana Niro
Soft L_e-L_mu-L_tau flavour symmetry breaking and sterile neutrino keV Dark Matter
14 pages
JCAP 1101:034,2011
10.1088/1475-7516/2011/01/034
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss how a $L_e-L_\mu-L_\tau$ flavour symmetry that is softly broken leads to keV sterile neutrinos, which are a prime candidate for Warm Dark Matter. This is to our knowledge the first model where flavour symmetries are applied simultaneously to active and sterile neutrinos explaining at the same time active n...
[ { "created": "Mon, 22 Nov 2010 21:03:23 GMT", "version": "v1" } ]
2011-06-30
[ [ "Lindner", "Manfred", "" ], [ "Merle", "Alexander", "" ], [ "Niro", "Viviana", "" ] ]
We discuss how a $L_e-L_\mu-L_\tau$ flavour symmetry that is softly broken leads to keV sterile neutrinos, which are a prime candidate for Warm Dark Matter. This is to our knowledge the first model where flavour symmetries are applied simultaneously to active and sterile neutrinos explaining at the same time active neu...
1105.5135
Joshua T. Ruderman
JiJi Fan, Matthew Reece, Joshua T. Ruderman
Stealth Supersymmetry
12 pages, 4 figures
JHEP 1111 (2011) 012
10.1007/JHEP11(2011)012
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a broad class of supersymmetric models that preserve R-parity but lack missing energy signatures. These models have new light particles with weak-scale supersymmetric masses that feel SUSY breaking only through couplings to the MSSM. This small SUSY breaking leads to nearly degenerate fermion/boson pairs, ...
[ { "created": "Wed, 25 May 2011 20:00:02 GMT", "version": "v1" } ]
2015-05-28
[ [ "Fan", "JiJi", "" ], [ "Reece", "Matthew", "" ], [ "Ruderman", "Joshua T.", "" ] ]
We present a broad class of supersymmetric models that preserve R-parity but lack missing energy signatures. These models have new light particles with weak-scale supersymmetric masses that feel SUSY breaking only through couplings to the MSSM. This small SUSY breaking leads to nearly degenerate fermion/boson pairs, wi...
2404.14844
Seulgi Kim
Amandeep Kaur Kalsi, Teruki Kamon, Seulgi Kim, Jason S.H. Lee, Denis Rathjens, Youn Jung Roh, Adrian Thompson, Ian James Watson
Probing bottom-associated production of a TeV scale scalar decaying to a top quark and dark matter at the LHC
null
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
A minimal non-thermal dark matter model that can explain both the existence of dark matter and the baryon asymmetry in the universe is studied. It requires two color-triplet, iso-singlet scalars with $\mathcal{O}$(TeV) masses and a singlet Majorana fermion with a mass of $\mathcal{O}$(GeV). The fermion becomes stable...
[ { "created": "Tue, 23 Apr 2024 08:50:55 GMT", "version": "v1" }, { "created": "Sun, 5 May 2024 08:27:48 GMT", "version": "v2" } ]
2024-05-07
[ [ "Kalsi", "Amandeep Kaur", "" ], [ "Kamon", "Teruki", "" ], [ "Kim", "Seulgi", "" ], [ "Lee", "Jason S. H.", "" ], [ "Rathjens", "Denis", "" ], [ "Roh", "Youn Jung", "" ], [ "Thompson", "Adrian", "" ], [...
A minimal non-thermal dark matter model that can explain both the existence of dark matter and the baryon asymmetry in the universe is studied. It requires two color-triplet, iso-singlet scalars with $\mathcal{O}$(TeV) masses and a singlet Majorana fermion with a mass of $\mathcal{O}$(GeV). The fermion becomes stable a...
hep-ph/9608203
Gerhard Kulzinger
H.G. Dosch, T. Gousset, G. Kulzinger, H.J. Pirner (Institut f\"ur Theoretische Physik der Universit\"at Heidelberg)
Vector meson leptoproduction and nonperturbative gluon fluctuations in QCD
28 pages LaTeX type and 17 Postscript figures uuencoded, uses epsfig. Submitted to Phys.Rev.D
Phys.Rev.D55:2602-2615,1997
10.1103/PhysRevD.55.2602
HD-THEP-96-31 and HD-TVP-96-8
hep-ph
null
We present a nonperturbative QCD calculation of diffractive vector meson production in virtual photon nucleon scattering at high energy. We use the nonperturbative model of the stochastic QCD vacuum which yields linear confinement and makes specific predictions for the dependence of high-energy scattering cross secti...
[ { "created": "Thu, 1 Aug 1996 14:58:46 GMT", "version": "v1" } ]
2008-11-26
[ [ "Dosch", "H. G.", "", "Institut für\n Theoretische Physik der Universität Heidelberg" ], [ "Gousset", "T.", "", "Institut für\n Theoretische Physik der Universität Heidelberg" ], [ "Kulzinger", "G.", "", "Institut für\n Theoretische Physik der Universität...
We present a nonperturbative QCD calculation of diffractive vector meson production in virtual photon nucleon scattering at high energy. We use the nonperturbative model of the stochastic QCD vacuum which yields linear confinement and makes specific predictions for the dependence of high-energy scattering cross section...
hep-ph/0208160
Martin McDermott
A. Freund, M. McDermott and M. Strikman
Modelling generalized parton distributions to describe deeply virtual Compton scattering data
12 pages, 12 figures, revtex4, shortened version accepted for publication in PRD, figures improved and references added
Phys.Rev. D67 (2003) 036001
10.1103/PhysRevD.67.036001
null
hep-ph
null
We present a new model for generalized parton distributions (GPDs), based on the aligned jet model, which successfully describes the deeply virtual Compton scattering (DVCS) data from H1, ZEUS, HERMES and CLAS. We also present an easily implementable and flexible algorithm for their construction. This new model is ne...
[ { "created": "Fri, 16 Aug 2002 10:54:12 GMT", "version": "v1" }, { "created": "Mon, 16 Dec 2002 09:07:07 GMT", "version": "v2" } ]
2009-11-07
[ [ "Freund", "A.", "" ], [ "McDermott", "M.", "" ], [ "Strikman", "M.", "" ] ]
We present a new model for generalized parton distributions (GPDs), based on the aligned jet model, which successfully describes the deeply virtual Compton scattering (DVCS) data from H1, ZEUS, HERMES and CLAS. We also present an easily implementable and flexible algorithm for their construction. This new model is nece...
1806.10088
Cristian Villavicencio
C. A. Dominguez, M. Loewe and Cristian Villavicencio
QCD determination of the magnetic field dependence of QCD and hadronic parameters
11 pages, 10 figures, version to appear in Physical Review D
Phys. Rev. D 98, 034015 (2018)
10.1103/PhysRevD.98.034015
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A set of four Finite Energy QCD sum rules are used to determine the magnetic field dependence of the sum of the up- and down-quark masses of QCD, $(m_u + m_d)$, the pion decay constant $f_\pi$, the pion mass $m_\pi$, the gluon condensate, $\langle 0| \alpha_s\, G^2|0\rangle$, and the squared energy threshold for the ...
[ { "created": "Tue, 26 Jun 2018 16:07:33 GMT", "version": "v1" }, { "created": "Mon, 13 Aug 2018 14:56:03 GMT", "version": "v2" } ]
2018-10-30
[ [ "Dominguez", "C. A.", "" ], [ "Loewe", "M.", "" ], [ "Villavicencio", "Cristian", "" ] ]
A set of four Finite Energy QCD sum rules are used to determine the magnetic field dependence of the sum of the up- and down-quark masses of QCD, $(m_u + m_d)$, the pion decay constant $f_\pi$, the pion mass $m_\pi$, the gluon condensate, $\langle 0| \alpha_s\, G^2|0\rangle$, and the squared energy threshold for the on...
1410.5730
Jonas Michael Lindert
Lorenzo Calibbi, Jonas M. Lindert, Toshihiko Ota, Yasutaka Takanishi
LHC Tests of Light Neutralino Dark Matter without Light Sfermions
22 pages, 8 figures
null
10.1007/JHEP11(2014)106
ULB-TH/14-15, LPN14-119, ZU-TH35/14, STUPP-14-220
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We address the question how light the lightest MSSM neutralino can be as dark matter candidate in a scenario where all supersymmetric scalar particles are heavy. The hypothesis that the neutralino accounts for the observed dark matter density sets strong requirements on the supersymmetric spectrum, thus providing an ...
[ { "created": "Tue, 21 Oct 2014 16:29:40 GMT", "version": "v1" } ]
2015-06-23
[ [ "Calibbi", "Lorenzo", "" ], [ "Lindert", "Jonas M.", "" ], [ "Ota", "Toshihiko", "" ], [ "Takanishi", "Yasutaka", "" ] ]
We address the question how light the lightest MSSM neutralino can be as dark matter candidate in a scenario where all supersymmetric scalar particles are heavy. The hypothesis that the neutralino accounts for the observed dark matter density sets strong requirements on the supersymmetric spectrum, thus providing an ha...
hep-ph/9911362
K. Zuber
K. Zuber
Terrestrial neutrino mass searches
7 pages, 4 eps-figures, to appear in a slightly modified form in the D. N. Schramm Memorial Symposium, Inner Space Outer Space II, Fermilab, May 1999
null
null
null
hep-ph
null
The current status of direct terrestrial neutrino mass searches is presented. This includes direct kinematical searches, double beta decay and the search for a magnetic moment.
[ { "created": "Mon, 15 Nov 1999 17:03:09 GMT", "version": "v1" } ]
2007-05-23
[ [ "Zuber", "K.", "" ] ]
The current status of direct terrestrial neutrino mass searches is presented. This includes direct kinematical searches, double beta decay and the search for a magnetic moment.
1707.03835
Jordan Smolinsky
Jonathan L. Feng, Jordan Smolinsky
Impact of Resonance on Thermal Targets for Invisible Dark Photon Searches
17 pages, 2 figures; v2: improved agreement with existing non-resonant results, added extensive discussion of implications for direct detection experiments
Phys. Rev. D 96, 095022 (2017)
10.1103/PhysRevD.96.095022
UCI-TR-2017-06
hep-ph astro-ph.CO hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Dark photons in the MeV to GeV mass range are important targets for experimental searches. We consider the case where dark photons $A'$ decay invisibly to hidden dark matter $X$ through $A' \to XX$. For generic masses, proposed accelerator searches are projected to probe the thermal target region of parameter space, ...
[ { "created": "Wed, 12 Jul 2017 18:00:03 GMT", "version": "v1" }, { "created": "Mon, 11 Sep 2017 18:59:50 GMT", "version": "v2" } ]
2017-11-29
[ [ "Feng", "Jonathan L.", "" ], [ "Smolinsky", "Jordan", "" ] ]
Dark photons in the MeV to GeV mass range are important targets for experimental searches. We consider the case where dark photons $A'$ decay invisibly to hidden dark matter $X$ through $A' \to XX$. For generic masses, proposed accelerator searches are projected to probe the thermal target region of parameter space, wh...
hep-ph/9707211
Charles A. Nelson
Charles A. Nelson, Brian T. Kress, Marco Lopes, and Thomas P. McCauley
General Tests for t ---> W+ b couplings at Hadron Colliders
Minor clarifications. Expressions for r_{+-}, rho_{+-}, and \xi for ( L + S-P) coupling corrected. 36 pages LaTex + Tables + 14 Figs
Phys.Rev. D56 (1997) 5928-5944
10.1103/PhysRevD.56.5928
SUNY BING 5/28/97
hep-ph
null
The modularity property of the helicity formalism is used to provide amplitude expressions and stage-two spin-correlation functions which can easily be used in direct experimental searches for electro-weak symmetries and dynamics in the decay processes $t \to W^+ b$, $\bar t \to W^- \bar b$. The formalism is used to ...
[ { "created": "Tue, 1 Jul 1997 15:30:16 GMT", "version": "v1" }, { "created": "Wed, 2 Jul 1997 18:06:49 GMT", "version": "v2" }, { "created": "Sat, 2 Aug 1997 15:50:18 GMT", "version": "v3" } ]
2009-10-30
[ [ "Nelson", "Charles A.", "" ], [ "Kress", "Brian T.", "" ], [ "Lopes", "Marco", "" ], [ "McCauley", "Thomas P.", "" ] ]
The modularity property of the helicity formalism is used to provide amplitude expressions and stage-two spin-correlation functions which can easily be used in direct experimental searches for electro-weak symmetries and dynamics in the decay processes $t \to W^+ b$, $\bar t \to W^- \bar b$. The formalism is used to de...
hep-ph/0610290
Ignasi Rosell
I. Rosell (1), J.J. Sanz-Cillero (2) and A. Pich (1) ((1) Valencia U. & Valencia U., IFIC, (2) Peking U.)
Towards a determination of the chiral couplings at NLO in 1/N(C): L_8(mu) and C_38(mu)
Extended version published at JHEP01(2007)039. A NLO prediction for the O(p6) chiral coupling C_38 has been added. The original L_8 results remain unchanged
JHEP 0701:039,2007
10.1088/1126-6708/2007/01/039
IFIC-06-36, FTUV-06-23-10
hep-ph
null
We present a dispersive method which allows to investigate the low-energy couplings of chiral perturbation theory at the next-to-leading order (NLO) in the 1/N(C) expansion, keeping full control of their renormalization scale dependence. Using the resonance chiral theory Lagrangian, we perform a NLO calculation of th...
[ { "created": "Mon, 23 Oct 2006 10:21:15 GMT", "version": "v1" }, { "created": "Wed, 10 Jan 2007 12:13:29 GMT", "version": "v2" } ]
2010-10-27
[ [ "Rosell", "I.", "" ], [ "Sanz-Cillero", "J. J.", "" ], [ "Pich", "A.", "" ] ]
We present a dispersive method which allows to investigate the low-energy couplings of chiral perturbation theory at the next-to-leading order (NLO) in the 1/N(C) expansion, keeping full control of their renormalization scale dependence. Using the resonance chiral theory Lagrangian, we perform a NLO calculation of the ...
hep-ph/0209041
Martin Maul
Jan Kwiecinski (Cracow, INP) and Martin Maul (Lund U.)
Integral equation for spin dependent unintegrated parton distributions incorporating double ln^2(1/x) effects at low x
24 pages, 3 figures, LaTeX, some discussion added, none of the results changed, version to appear in Phys. Rev. D
null
10.1103/PhysRevD.67.034014
LU TP 02-32
hep-ph
null
In this paper we derive an integral equation for the evolution of unintegrated (longitudinally) polarized quark and gluon parton distributions. The conventional CCFM framework is extended at small x in order to incorporate the QCD expectations concerning the double ln^2(1/x) resummation at low x for the integrated di...
[ { "created": "Wed, 4 Sep 2002 14:32:30 GMT", "version": "v1" }, { "created": "Sun, 19 Jan 2003 19:45:58 GMT", "version": "v2" } ]
2009-11-07
[ [ "Kwiecinski", "Jan", "", "Cracow, INP" ], [ "Maul", "Martin", "", "Lund U." ] ]
In this paper we derive an integral equation for the evolution of unintegrated (longitudinally) polarized quark and gluon parton distributions. The conventional CCFM framework is extended at small x in order to incorporate the QCD expectations concerning the double ln^2(1/x) resummation at low x for the integrated dist...
hep-ph/0007264
Mohamed Tarek Hussein
M. T. Hussein, N. M. Hassan and N. Elharby
High Energy Nucleus-Nucleus Collisions In View Of The Multi-Peripheral Model
9 pages (Latex), 9 eps figures
Heavy Ion Phys. 13 (2001) 277-288
10.1556/APH.13.2001.4.10
null
hep-ph
null
The hypothesis of the multi peripheral model is extended to the hadron-nucleus interactions and then generalized to the nucleus-nucleus case. The processing of the model depends on input parameters that are extracted from the features of the experiments in this field. The number of encountered nucleons from both targ...
[ { "created": "Mon, 24 Jul 2000 15:59:35 GMT", "version": "v1" }, { "created": "Thu, 3 Aug 2000 05:00:45 GMT", "version": "v2" }, { "created": "Sun, 6 Aug 2000 10:20:11 GMT", "version": "v3" }, { "created": "Thu, 24 Aug 2000 08:10:04 GMT", "version": "v4" } ]
2009-10-31
[ [ "Hussein", "M. T.", "" ], [ "Hassan", "N. M.", "" ], [ "Elharby", "N.", "" ] ]
The hypothesis of the multi peripheral model is extended to the hadron-nucleus interactions and then generalized to the nucleus-nucleus case. The processing of the model depends on input parameters that are extracted from the features of the experiments in this field. The number of encountered nucleons from both target...
hep-ph/0009299
Lisi Eligio
G.L. Fogli, E. Lisi, and A. Marrone (U. of Bari & INFN)
Four-neutrino oscillation solutions of the atmospheric neutrino anomaly
Added references. Accepted for publication in Phys. Rev. D
Phys.Rev.D63:053008,2001
10.1103/PhysRevD.63.053008
null
hep-ph
null
In the context of neutrino scenarios characterized by four (three active plus one sterile) neutrino species and by mass spectra with two separated doublets, we analyze solutions to the atmospheric neutrino anomaly which smoothly interpolate between \nu_\mu-->\nu_\tau and \nu_\mu-->\nu_s oscillations. We show that, al...
[ { "created": "Tue, 26 Sep 2000 15:19:15 GMT", "version": "v1" }, { "created": "Wed, 13 Dec 2000 14:18:03 GMT", "version": "v2" } ]
2009-10-07
[ [ "Fogli", "G. L.", "", "U. of Bari & INFN" ], [ "Lisi", "E.", "", "U. of Bari & INFN" ], [ "Marrone", "A.", "", "U. of Bari & INFN" ] ]
In the context of neutrino scenarios characterized by four (three active plus one sterile) neutrino species and by mass spectra with two separated doublets, we analyze solutions to the atmospheric neutrino anomaly which smoothly interpolate between \nu_\mu-->\nu_\tau and \nu_\mu-->\nu_s oscillations. We show that, alth...
hep-ph/9707324
Ruth A. W. Gregory
Malcolm Anderson, Filipe Bonjour, Ruth Gregory and John Stewart
Effective action and motion of a cosmic string
24 pages revtex, 12 figures
Phys.Rev. D56 (1997) 8014-8028
10.1103/PhysRevD.56.8014
DTP/97/5, DAMTP/R-97/27
hep-ph astro-ph hep-th
null
We examine the leading order corrections to the Nambu effective action for the motion of a cosmic string, which appear at fourth order in the ratio of the width to radius of curvature of the string. We determine the numerical coefficients of these extrinsic curvature corrections, and derive the equations of motion of...
[ { "created": "Fri, 11 Jul 1997 13:40:19 GMT", "version": "v1" } ]
2009-10-30
[ [ "Anderson", "Malcolm", "" ], [ "Bonjour", "Filipe", "" ], [ "Gregory", "Ruth", "" ], [ "Stewart", "John", "" ] ]
We examine the leading order corrections to the Nambu effective action for the motion of a cosmic string, which appear at fourth order in the ratio of the width to radius of curvature of the string. We determine the numerical coefficients of these extrinsic curvature corrections, and derive the equations of motion of t...
1101.3310
Frank Tackmann
Florian U. Bernlochner, Heiko Lacker, Zoltan Ligeti, Iain W. Stewart, Frank J. Tackmann, Kerstin Tackmann
Status of SIMBA
7 pages, 3 figures, Proceedings of CKM2010, the 6th International Workshop on the CKM Unitarity Triangle, University of Warwick, UK, 6-10 September 2010
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The goal of the SIMBA collaboration is to provide a global fit to the available data in inclusive B -> X_s gamma and B -> X_u l nu decays. By performing a global fit one is able to simultaneously determine the relevant normalizations, i.e. the total B -> X_s gamma rate and the CKM-matrix element |Vub|, together with ...
[ { "created": "Mon, 17 Jan 2011 21:00:02 GMT", "version": "v1" } ]
2011-01-19
[ [ "Bernlochner", "Florian U.", "" ], [ "Lacker", "Heiko", "" ], [ "Ligeti", "Zoltan", "" ], [ "Stewart", "Iain W.", "" ], [ "Tackmann", "Frank J.", "" ], [ "Tackmann", "Kerstin", "" ] ]
The goal of the SIMBA collaboration is to provide a global fit to the available data in inclusive B -> X_s gamma and B -> X_u l nu decays. By performing a global fit one is able to simultaneously determine the relevant normalizations, i.e. the total B -> X_s gamma rate and the CKM-matrix element |Vub|, together with th...
hep-ph/9711376
Milo Svec
M.Svec
Mass and width of sigma(750) scalar meson from measurements of pi(-)p->pi(-)pi(+)n on polarized target
4 pages, 3 figures
null
10.1063/1.55963
null
hep-ph
null
Model independent amplitude analyses of $\pi^- p_\uparrow \to \pi^- \pi^+ n$ on polarized target at 17.2 GeV/c reveal resonant structure of S-wave transversity amplitudes $|\bar S|^2\Sigma$ and $|S|^2\Sigma$ near 750 MeV. Simultaneous fit to $|\bar S|^2\Sigma$ and $|S|^2\Sigma$ with a single $\sigma$ pole yields $m_\...
[ { "created": "Tue, 18 Nov 1997 20:51:23 GMT", "version": "v1" } ]
2009-10-30
[ [ "Svec", "M.", "" ] ]
Model independent amplitude analyses of $\pi^- p_\uparrow \to \pi^- \pi^+ n$ on polarized target at 17.2 GeV/c reveal resonant structure of S-wave transversity amplitudes $|\bar S|^2\Sigma$ and $|S|^2\Sigma$ near 750 MeV. Simultaneous fit to $|\bar S|^2\Sigma$ and $|S|^2\Sigma$ with a single $\sigma$ pole yields $m_\si...
1212.3622
Riccardo Torre
Roberto Franceschini and Riccardo Torre
RPV stops bump off the background
9 pages, 1 figure, 1 table; references added, matches the published version
null
10.1140/epjc/s10052-013-2422-x
DFPD-2012/TH/26, IFT-UAM/CSIC-12-118, LPN12-135, UMD-PP-012-025
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the 8 TeV LHC reach on pair produced heavy flavored di-jet resonances. Motivated by theories of R-parity violation in supersymmetry we concentrate on a final state with two b-jets and two light jets. We exploit b-tagging to reject the background and discuss its importance at the trigger level to probe light ...
[ { "created": "Fri, 14 Dec 2012 21:22:24 GMT", "version": "v1" }, { "created": "Wed, 24 Sep 2014 08:10:10 GMT", "version": "v2" } ]
2015-06-12
[ [ "Franceschini", "Roberto", "" ], [ "Torre", "Riccardo", "" ] ]
We study the 8 TeV LHC reach on pair produced heavy flavored di-jet resonances. Motivated by theories of R-parity violation in supersymmetry we concentrate on a final state with two b-jets and two light jets. We exploit b-tagging to reject the background and discuss its importance at the trigger level to probe light st...
hep-ph/0403162
Osamu Yasuda
Osamu Yasuda
Measurement of $\sin^2{2\theta_{13}}$ by reactor experiments and its sensitivity
8 pages, 2 sets of figures, uses ws-procs9x6.cls. Talk presented at Coral Gables Conference On Lauching Of Belle Epoque In High-Energy Physics And Cosmology (CG 2003), 17-21 Dec 2003, Ft. Lauderdale, Florida
null
10.1142/9789812701992_0034
null
hep-ph
null
Reactor experiments offer a promising way to determine $\theta_{13}$ and are free from parameter degeneracies in neutrino oscillations. It is described how reactor measurements of $\sin^22\theta_{13}$ can be improved by a near-far detector complex. The experimental lower bound is derived on the sensitivity to $\sin^2...
[ { "created": "Mon, 15 Mar 2004 13:51:53 GMT", "version": "v1" } ]
2017-08-23
[ [ "Yasuda", "Osamu", "" ] ]
Reactor experiments offer a promising way to determine $\theta_{13}$ and are free from parameter degeneracies in neutrino oscillations. It is described how reactor measurements of $\sin^22\theta_{13}$ can be improved by a near-far detector complex. The experimental lower bound is derived on the sensitivity to $\sin^2{2...
hep-ph/0210370
Marc Kamionkowski
Marc Kamionkowski (Caltech)
New Views of Cosmology and the Microworld
Invited talk at Secrets of the B meson, XXX SLAC Summer Institute, August 2002 (SSI02), 37 pages, 13 figures. Also to appear in proceedings of ICHEP02, 31st International Conference on High Energy Physics, Amsterdam, July 2002
eConf C020805 (2002) TF04
null
null
hep-ph astro-ph
null
The past few years have seen several breakthroughs in particle astrophysics and cosmology. In several cases, new observations can only be explained with the introduction of new fundamental physics. In this talk I summarize some of these recent advances and describe several areas where progress may well be made in the...
[ { "created": "Mon, 28 Oct 2002 05:32:13 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kamionkowski", "Marc", "", "Caltech" ] ]
The past few years have seen several breakthroughs in particle astrophysics and cosmology. In several cases, new observations can only be explained with the introduction of new fundamental physics. In this talk I summarize some of these recent advances and describe several areas where progress may well be made in the f...
hep-ph/9911371
Raju Venugopalan
Raju Venugopalan (BNL)
Classical methods in DIS and nuclear scattering at small x
Latex, 41 pgs. Lectures at the XXXIX Cracow School of Theoretical Physics, Zakopane, Poland, May29th-June8th, 1999
Acta Phys.Polon.B30:3731-3761,1999
null
null
hep-ph
null
In hadrons and nuclei at very small x, parton distributions saturate at a scale Q_s(x). Since the occupation number is large, and $Q_s(x)>>\Lambda_{QCD}$, classical weak coupling methods may be used to study this novel regime of non-linear classical fields in QCD. In these lectures, we apply these methods to compute ...
[ { "created": "Tue, 16 Nov 1999 02:11:06 GMT", "version": "v1" } ]
2011-04-15
[ [ "Venugopalan", "Raju", "", "BNL" ] ]
In hadrons and nuclei at very small x, parton distributions saturate at a scale Q_s(x). Since the occupation number is large, and $Q_s(x)>>\Lambda_{QCD}$, classical weak coupling methods may be used to study this novel regime of non-linear classical fields in QCD. In these lectures, we apply these methods to compute st...
1008.5201
Xin Liu
Xin Liu and Zhen-Jun Xiao
Light scalar mesons and charmless hadronic $B_c \to SP, SV$ decays in the perturbative QCD approach
24 pages, 1 figure, accepted for publication in Physical Review D
Phys.Rev.D82:054029,2010
10.1103/PhysRevD.82.054029
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, based on the assumption of two-quark structure of the scalars, the charmless hadronic $B_c \to SP, SV$ decays(here, $S$, $P$, and $V$ denote the light scalar, pseudoscalar, and vector mesons, respectively) are investigated by employing the perturbative QCD(pQCD) factorization approach.From our numerical...
[ { "created": "Tue, 31 Aug 2010 02:21:17 GMT", "version": "v1" } ]
2014-11-21
[ [ "Liu", "Xin", "" ], [ "Xiao", "Zhen-Jun", "" ] ]
In this work, based on the assumption of two-quark structure of the scalars, the charmless hadronic $B_c \to SP, SV$ decays(here, $S$, $P$, and $V$ denote the light scalar, pseudoscalar, and vector mesons, respectively) are investigated by employing the perturbative QCD(pQCD) factorization approach.From our numerical e...
hep-ph/9406436
C. S. Kim
Daesung Hwang, C.S. Kim and Wuk Namgung
Fermi motion parameter $p_F$ of $B$ meson from relativistic quark model
11 pages (no figures)
null
null
SNUTP 94-58, YUMS 94-18 (June 1994)
hep-ph
null
The Fermi motion parameter $p_{_F}$ is the most important parameter of ACCMM model, and the value $p_{_F} \sim 0.3$ GeV has been used without clear theoretical or experimental evidence. So, we attempted to extract the possible value for $p_{_F}$ theoretically in the relativistic quark model using quantum mechanical v...
[ { "created": "Fri, 1 Jul 1994 04:20:20 GMT", "version": "v1" } ]
2007-05-23
[ [ "Hwang", "Daesung", "" ], [ "Kim", "C. S.", "" ], [ "Namgung", "Wuk", "" ] ]
The Fermi motion parameter $p_{_F}$ is the most important parameter of ACCMM model, and the value $p_{_F} \sim 0.3$ GeV has been used without clear theoretical or experimental evidence. So, we attempted to extract the possible value for $p_{_F}$ theoretically in the relativistic quark model using quantum mechanical var...
1908.06992
Antonio Palazzo
Francesco Capozzi, Sabya Sachi Chatterjee, Antonio Palazzo
Neutrino mass ordering obscured by non-standard interactions
7 pages, 4 figures. Supplemental Material included. Version accepted for publication in PRL
Phys. Rev. Lett. 124, 111801 (2020)
10.1103/PhysRevLett.124.111801
IPPP/19/69, MPP/2019/178
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
One of the major open questions in particle physics is the issue of the neutrino mass ordering (NMO). The current data of the two long-baseline experiments NO$\nu$A and T2K, interpreted in the standard 3-flavor scenario, provide a $\sim2.4\sigma$ indication in favor of the normal neutrino mass ordering. We show that ...
[ { "created": "Mon, 19 Aug 2019 18:00:07 GMT", "version": "v1" }, { "created": "Wed, 19 Feb 2020 14:48:36 GMT", "version": "v2" } ]
2020-03-25
[ [ "Capozzi", "Francesco", "" ], [ "Chatterjee", "Sabya Sachi", "" ], [ "Palazzo", "Antonio", "" ] ]
One of the major open questions in particle physics is the issue of the neutrino mass ordering (NMO). The current data of the two long-baseline experiments NO$\nu$A and T2K, interpreted in the standard 3-flavor scenario, provide a $\sim2.4\sigma$ indication in favor of the normal neutrino mass ordering. We show that su...
hep-ph/0103300
Martin Freund
Martin Freund
Analytic Approximations for Three Neutrino Oscillation Parameters and Probabilities in Matter
17 pages, 3 figures
Phys.Rev.D64:053003,2001
10.1103/PhysRevD.64.053003
TUM-HEP-404/01
hep-ph
null
The corrections to neutrino mixing parameters in the presence of matter of constant density are calculated systematically as series expansions in terms of the mass hierarchy $\dm{21}/\dm{31}$. The parameter mapping obtained is then used to find simple, but nevertheless accurate formulas for oscillation probabibilitie...
[ { "created": "Wed, 28 Mar 2001 15:46:22 GMT", "version": "v1" } ]
2014-11-17
[ [ "Freund", "Martin", "" ] ]
The corrections to neutrino mixing parameters in the presence of matter of constant density are calculated systematically as series expansions in terms of the mass hierarchy $\dm{21}/\dm{31}$. The parameter mapping obtained is then used to find simple, but nevertheless accurate formulas for oscillation probabibilities ...
2308.05578
Eetu Loisa
Eetu Loisa
Searching for the flavon at current and future colliders
10 pages, 5 figures. Contribution to the proceedings of the 21st Conference on Flavor Physics and CP Violation (FPCP2023)
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
The $ B_3 - L_2$ $ Z' $ model may explain certain features of the fermion mass spectrum as well as the $b \rightarrow s \mu^+ \mu^-$ anomalies. The $ Z' $ acquires its mass via a TeV-scale scalar field, the flavon, whose vacuum expectation value spontaneously breaks the family non-universal gauged $ U(1)_{B_3 - L_2} ...
[ { "created": "Thu, 10 Aug 2023 13:41:55 GMT", "version": "v1" } ]
2023-08-11
[ [ "Loisa", "Eetu", "" ] ]
The $ B_3 - L_2$ $ Z' $ model may explain certain features of the fermion mass spectrum as well as the $b \rightarrow s \mu^+ \mu^-$ anomalies. The $ Z' $ acquires its mass via a TeV-scale scalar field, the flavon, whose vacuum expectation value spontaneously breaks the family non-universal gauged $ U(1)_{B_3 - L_2} $ ...
0802.0830
Nikolai Krasnikov
N.V.Krasnikov
LHC signatures for Z` models with continuously distributed mass
7 pages
Mod.Phys.Lett.A23:3233-3237,2008
10.1142/S0217732308028582
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss phenomenological consequences of renormalizable Z` models with continuously distributed mass. We point out that one of possible LHC signatures for such nodel is the existence of broad resonance in Drell-Yan reaction $pp \to Z^{`} \to l^+l^-$.
[ { "created": "Wed, 6 Feb 2008 15:59:25 GMT", "version": "v1" } ]
2009-02-11
[ [ "Krasnikov", "N. V.", "" ] ]
We discuss phenomenological consequences of renormalizable Z` models with continuously distributed mass. We point out that one of possible LHC signatures for such nodel is the existence of broad resonance in Drell-Yan reaction $pp \to Z^{`} \to l^+l^-$.
1403.6028
Satyanarayan Mukhopadhyay
Satyanarayan Mukhopadhyay, Mihoko M. Nojiri and Tsutomu T. Yanagida
Compressed SUSY search at the 13 TeV LHC using kinematic correlations and structure of ISR jets
19 pages, 3 figures; v2: Standard model background estimates improved, comments and references added
JHEP10(2014)012
10.1007/JHEP10(2014)012
IPMU14-0071, KEK-TH-1718
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The LHC search for nearly degenerate gluinos and neutralinos, which can occur, for example, in SUSY axion models, is limited by the reduced missing transverse momentum and effective mass in the events. We propose the use of kinematic correlations between jets coming from initial state radiation (ISR) in gluino pair p...
[ { "created": "Mon, 24 Mar 2014 16:29:23 GMT", "version": "v1" }, { "created": "Wed, 20 Aug 2014 11:54:57 GMT", "version": "v2" } ]
2014-10-07
[ [ "Mukhopadhyay", "Satyanarayan", "" ], [ "Nojiri", "Mihoko M.", "" ], [ "Yanagida", "Tsutomu T.", "" ] ]
The LHC search for nearly degenerate gluinos and neutralinos, which can occur, for example, in SUSY axion models, is limited by the reduced missing transverse momentum and effective mass in the events. We propose the use of kinematic correlations between jets coming from initial state radiation (ISR) in gluino pair pro...
2105.06940
Rene Poncelet
Herschel A. Chawdhry, Michal Czakon, Alexander Mitov, Rene Poncelet
NNLO QCD corrections to diphoton production with an additional jet at the LHC
12 pages, 7 figures
JHEP 2109 (2021) 093
10.1007/JHEP09(2021)093
Cavendish-HEP-21/07, OUTP-21-13P, P3H-21-032
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
We calculate the NNLO QCD corrections to diphoton production with an additional jet at the LHC. Our calculation represents the first NNLO-accurate prediction for the transverse momentum distribution of the diphoton system. The improvement in the accuracy of the theoretical prediction is significant, by a factor of up...
[ { "created": "Fri, 14 May 2021 16:32:26 GMT", "version": "v1" } ]
2021-12-08
[ [ "Chawdhry", "Herschel A.", "" ], [ "Czakon", "Michal", "" ], [ "Mitov", "Alexander", "" ], [ "Poncelet", "Rene", "" ] ]
We calculate the NNLO QCD corrections to diphoton production with an additional jet at the LHC. Our calculation represents the first NNLO-accurate prediction for the transverse momentum distribution of the diphoton system. The improvement in the accuracy of the theoretical prediction is significant, by a factor of up t...
hep-ph/9706255
Frank Cuypers
Frank Cuypers (PSI)
Au-dela du Modele Standard [Beyond the Standard Model]
106 pages, in French, lectures given at the Spring School on High Energy Physics, Ecole des Mines de Nantes, France, 14-25 April 1997
null
null
PSI Report 97-03
hep-ph hep-ex hep-th
null
Ces notes de cours visent a decrire de maniere pedagogique certaines extensions populaires du modele standard des interactions fortes et electrofaibless. Les sujets abordes comprennent le secteur de Higgs, le modele symetrique gauche-droit, la grande unification et la supersymetrie. L'accent est mis sur les consequen...
[ { "created": "Thu, 5 Jun 1997 07:00:59 GMT", "version": "v1" } ]
2007-05-23
[ [ "Cuypers", "Frank", "", "PSI" ] ]
Ces notes de cours visent a decrire de maniere pedagogique certaines extensions populaires du modele standard des interactions fortes et electrofaibless. Les sujets abordes comprennent le secteur de Higgs, le modele symetrique gauche-droit, la grande unification et la supersymetrie. L'accent est mis sur les consequence...
1111.5211
Carlo Giunti Dr.
Carlo Giunti, Marco Laveder
First Double-Chooz Results and the Reactor Antineutrino Anomaly
4 pages
null
10.1103/PhysRevD.85.031301
null
hep-ph astro-ph.CO hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the possible effects of short-baseline antinu_e disappearance implied by the reactor antineutrino anomaly on the Double-Chooz determination of theta_{13} through the normalization of the initial antineutrino flux with the Bugey-4 measurement. We show that the effects are negligible and the value of the...
[ { "created": "Tue, 22 Nov 2011 15:04:39 GMT", "version": "v1" }, { "created": "Wed, 23 Nov 2011 20:21:52 GMT", "version": "v2" } ]
2013-05-30
[ [ "Giunti", "Carlo", "" ], [ "Laveder", "Marco", "" ] ]
We investigate the possible effects of short-baseline antinu_e disappearance implied by the reactor antineutrino anomaly on the Double-Chooz determination of theta_{13} through the normalization of the initial antineutrino flux with the Bugey-4 measurement. We show that the effects are negligible and the value of theta...
1003.2661
Thomas T. Dumitrescu
Thomas T. Dumitrescu, Zohar Komargodski, Nathan Seiberg and David Shih
General Messenger Gauge Mediation
37 pages; minor changes
JHEP 1005:096,2010
10.1007/JHEP05(2010)096
PUPT-2332
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss theories of gauge mediation in which the hidden sector consists of two subsectors which are weakly coupled to each other. One sector is made up of messengers and the other breaks supersymmetry. Each sector by itself may be strongly coupled. We provide a unifying framework for such theories and discuss thei...
[ { "created": "Sat, 13 Mar 2010 00:53:44 GMT", "version": "v1" }, { "created": "Tue, 16 Mar 2010 21:01:40 GMT", "version": "v2" }, { "created": "Fri, 9 Apr 2010 19:15:34 GMT", "version": "v3" } ]
2011-06-16
[ [ "Dumitrescu", "Thomas T.", "" ], [ "Komargodski", "Zohar", "" ], [ "Seiberg", "Nathan", "" ], [ "Shih", "David", "" ] ]
We discuss theories of gauge mediation in which the hidden sector consists of two subsectors which are weakly coupled to each other. One sector is made up of messengers and the other breaks supersymmetry. Each sector by itself may be strongly coupled. We provide a unifying framework for such theories and discuss their ...
hep-ph/0609112
Nick Evans
Nick Evans and Andrew Tedder
Perfecting the Ultra-violet of Holographic Descriptions of QCD
10 pages, 2 figures
Phys.Lett.B642:546-550,2006
10.1016/j.physletb.2006.10.019
SHEP-06-26
hep-ph hep-lat hep-th
null
We investigate imposing a UV cutoff into a simple AdS/QCD model of the rho mesons. The cutoff corresponds to the scale at which QCD moves from perturbative to non-perturbative behaviour, above which the gravity dual will itself become strongly coupled. Simply imposing a cutoff significantly improves the fit to the ma...
[ { "created": "Tue, 12 Sep 2006 11:11:39 GMT", "version": "v1" } ]
2008-11-26
[ [ "Evans", "Nick", "" ], [ "Tedder", "Andrew", "" ] ]
We investigate imposing a UV cutoff into a simple AdS/QCD model of the rho mesons. The cutoff corresponds to the scale at which QCD moves from perturbative to non-perturbative behaviour, above which the gravity dual will itself become strongly coupled. Simply imposing a cutoff significantly improves the fit to the mass...
1812.07362
Florian Goertz
Florian Goertz
Composite Higgs theory
12 pages, 5 figures, Proceedings of ALPS2018: An Alpine LHC Physics Summit
null
10.22323/1.330.0012
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
I review the idea of realizing the Higgs as a composite pseudo-Nambu-Goldstone boson of a new strongly-interacting sector and collect major constraints on the parameter space of minimal models. Besides limits from electroweak precision tests, LHC searches for resonances and bounds due to Higgs-coupling modifications ...
[ { "created": "Tue, 18 Dec 2018 13:45:32 GMT", "version": "v1" } ]
2022-09-21
[ [ "Goertz", "Florian", "" ] ]
I review the idea of realizing the Higgs as a composite pseudo-Nambu-Goldstone boson of a new strongly-interacting sector and collect major constraints on the parameter space of minimal models. Besides limits from electroweak precision tests, LHC searches for resonances and bounds due to Higgs-coupling modifications wi...
hep-ph/0010120
L. B. Okun
L.B.Okun (ITEP)
Photons and static gravity
LaTeX, 9 pages, no figures, the end of section 5 is modified
Mod.Phys.Lett.A15:1941,2000
10.1142/S0217732300002358
null
hep-ph gr-qc physics.ed-ph
null
The influence of static gravitational field on frequency, wave-length and velocity of photons and on the energy levels of atoms and nuclei is considered in the most elementary way. The interconnection between these phenomena is stressed.
[ { "created": "Thu, 12 Oct 2000 09:24:19 GMT", "version": "v1" }, { "created": "Mon, 20 Nov 2000 14:23:25 GMT", "version": "v2" } ]
2008-11-26
[ [ "Okun", "L. B.", "", "ITEP" ] ]
The influence of static gravitational field on frequency, wave-length and velocity of photons and on the energy levels of atoms and nuclei is considered in the most elementary way. The interconnection between these phenomena is stressed.
hep-ph/9908464
Jeff Forshaw
Brian Cox, Jeff Forshaw and Leif Lonnblad
Hard Colour Singlet Exchange at the Tevatron
22 pages, 19 figures
JHEP9910:023,1999
10.1088/1126-6708/1999/10/023
LU TP 99-13, CERN-TH/99-240, MAN/HEP/99/3, MC-TH-99/09
hep-ph
null
We have performed a detailed phenomenological investigation of the hard colour singlet exchange process which is observed at the Tevatron in events which have a large rapidity gap between outgoing jets. We include the effects of multiple interactions to obtain a prediction for the gap survival factor. Comparing the d...
[ { "created": "Wed, 25 Aug 1999 14:55:51 GMT", "version": "v1" } ]
2009-10-31
[ [ "Cox", "Brian", "" ], [ "Forshaw", "Jeff", "" ], [ "Lonnblad", "Leif", "" ] ]
We have performed a detailed phenomenological investigation of the hard colour singlet exchange process which is observed at the Tevatron in events which have a large rapidity gap between outgoing jets. We include the effects of multiple interactions to obtain a prediction for the gap survival factor. Comparing the dat...
1107.5694
Aqeel Ahmed
Ishtiaq Ahmed, M. Ali Paracha, M. Junaid, Aqeel Ahmed, Abdur Rehman and M. Jamil Aslam
Analysis of B_{C} --> D_{s}^{*}l^{+}l^{-} in the Standard Model Beyond Third Generation
28 pages, 14 figures, color figures with small corrections
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The weak decays of B_{c} --> D_{s}^{*}l^{+}l^{-} (l=mu,tau) are investigated in the Standard Model with fourth generation (SM4). Taking fourth generation quark mass m_{t'} of about 300 to 600 GeV with the CKM matrix elements V_{t'b}^{*}V_{t's} in the range (0.03-1.2)*10^{-2} and using the new CP odd phase (phi_{sb}) ...
[ { "created": "Thu, 28 Jul 2011 12:16:19 GMT", "version": "v1" }, { "created": "Tue, 23 Aug 2011 07:11:28 GMT", "version": "v2" } ]
2011-08-24
[ [ "Ahmed", "Ishtiaq", "" ], [ "Paracha", "M. Ali", "" ], [ "Junaid", "M.", "" ], [ "Ahmed", "Aqeel", "" ], [ "Rehman", "Abdur", "" ], [ "Aslam", "M. Jamil", "" ] ]
The weak decays of B_{c} --> D_{s}^{*}l^{+}l^{-} (l=mu,tau) are investigated in the Standard Model with fourth generation (SM4). Taking fourth generation quark mass m_{t'} of about 300 to 600 GeV with the CKM matrix elements V_{t'b}^{*}V_{t's} in the range (0.03-1.2)*10^{-2} and using the new CP odd phase (phi_{sb}) to...
0906.0067
Sergey Troshin
S.M. Troshin, N.E. Tyurin
Effects of reflective scattering in nuclear collisions
9 pages, 2 figures
null
10.1142/S0217732309031570
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss effects of reflective scattering for heavy nuclei collisions and the deconfined matter formation at the LHC and asymptotical energies. Reflective scattering in hadron collisions leads to decreasing matter density with energy beyond the LHC energies. Limiting form of energy dependence of hadron density is o...
[ { "created": "Mon, 1 Jun 2009 13:13:06 GMT", "version": "v1" } ]
2015-05-13
[ [ "Troshin", "S. M.", "" ], [ "Tyurin", "N. E.", "" ] ]
We discuss effects of reflective scattering for heavy nuclei collisions and the deconfined matter formation at the LHC and asymptotical energies. Reflective scattering in hadron collisions leads to decreasing matter density with energy beyond the LHC energies. Limiting form of energy dependence of hadron density is obt...
2006.15140
Nirmal Raj
David McKeen, Maxim Pospelov, Nirmal Raj
Hydrogen portal to exotic radioactivity
4 pages + refs, 3 figures
null
10.1103/PhysRevLett.125.231803
null
hep-ph astro-ph.HE hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show that in a special class of dark sector models, the hydrogen atom can serve as a portal to new physics, through its decay occurring in abundant populations in the Sun and on Earth. The large fluxes of hydrogen decay daughter states can be detected via their decay or scattering. By constructing two models for e...
[ { "created": "Fri, 26 Jun 2020 17:58:07 GMT", "version": "v1" } ]
2020-12-30
[ [ "McKeen", "David", "" ], [ "Pospelov", "Maxim", "" ], [ "Raj", "Nirmal", "" ] ]
We show that in a special class of dark sector models, the hydrogen atom can serve as a portal to new physics, through its decay occurring in abundant populations in the Sun and on Earth. The large fluxes of hydrogen decay daughter states can be detected via their decay or scattering. By constructing two models for eit...
hep-ph/9802396
Igor G. Alekseev
I. G. Alekseev, P. E. Budkovsky, V. P. Kanavets, L. I. Koroleva, I. I. Levintov, V. I. Martynov, B. V. Morozov, V. M. Nesterov, V. V. Ryltsov, D.N. Svirida, A. D. Sulimov, V. V. Sumachev (1), V. V. Zhurkin (Institute for Theoretical and Experimental Physics, (1) Petersburg Institute of Nuclear Physics)
Study of the reaction pi- p --> pi- pi+ n on the polarized proton target at 1.78 GeV/c. Experiment and amplitude analysis
36 pages, 10 figures, 9 tables. LaTeX documentclass: elsart.cls
Phys.Atom.Nucl.61:174-195,1998; Yad.Fiz.61:223-244,1998
null
ITEP-19-97
hep-ph
null
We present the results of the experimental study of the reaction of dipion production by the beam of the negative pions with momentum 1.78 GeV/c on the polarized proton and liquid hydrogen targets. The experiment covers the region of dipion masses near the mass of rho-meson and small momenta transferred |t|<0.2(GeV/c...
[ { "created": "Mon, 23 Feb 1998 17:24:37 GMT", "version": "v1" } ]
2008-11-26
[ [ "Alekseev", "I. G.", "", "Institute for\n Theoretical and Experimental Physics," ], [ "Budkovsky", "P. E.", "", "Institute for\n Theoretical and Experimental Physics," ], [ "Kanavets", "V. P.", "", "Institute for\n Theoretical and Experimental Physics," ...
We present the results of the experimental study of the reaction of dipion production by the beam of the negative pions with momentum 1.78 GeV/c on the polarized proton and liquid hydrogen targets. The experiment covers the region of dipion masses near the mass of rho-meson and small momenta transferred |t|<0.2(GeV/c)^...
2112.01407
Philipp Schicho
Jacopo Ghiglieri, Guy D. Moore, Philipp Schicho, Niels Schlusser
The force-force-correlator in hot QCD perturbatively and from the lattice
34 pages, 3 figures, 4 tables. Updates of (i) the NLO perturbative result in eq. (4.12), (ii) the numerical integration in eq. (5.2), (iii) numerical values in tabs. 1 and 3, and (iv) figures. Conclusions unchanged
JHEP 02 (2022) 058
10.1007/JHEP02(2022)058
HIP-2021-43/TH
hep-ph hep-lat
http://creativecommons.org/licenses/by/4.0/
High-energy particles traversing a medium experience modified dispersion. In the Quark-Gluon Plasma, such dispersion affects jet propagation and transport properties and should be determined better. Above $\sim 2T_c$ we expect strongly coupled infrared behavior and perturbative ultraviolet behavior, allowing a pertur...
[ { "created": "Thu, 2 Dec 2021 16:54:16 GMT", "version": "v1" }, { "created": "Wed, 9 Feb 2022 12:41:57 GMT", "version": "v2" }, { "created": "Thu, 13 Jul 2023 16:51:51 GMT", "version": "v3" } ]
2023-07-14
[ [ "Ghiglieri", "Jacopo", "" ], [ "Moore", "Guy D.", "" ], [ "Schicho", "Philipp", "" ], [ "Schlusser", "Niels", "" ] ]
High-energy particles traversing a medium experience modified dispersion. In the Quark-Gluon Plasma, such dispersion affects jet propagation and transport properties and should be determined better. Above $\sim 2T_c$ we expect strongly coupled infrared behavior and perturbative ultraviolet behavior, allowing a perturba...
1303.6355
Qiang Zhao
Qian Wang, Christoph Hanhart, Qiang Zhao
Decoding the riddle of Y(4260) and $Z_c(3900)$
Version to appear in Phys. Rev. Letters
null
10.1103/PhysRevLett.111.132003
null
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The observation of $Z_c(3900)$ by the BESIII collaboration in the invariant mass spectrum of $J/\psi\pi^\pm$ in $e^+e^-\to J/\psi\pi^+\pi^-$ at the center of mass 4.260 GeV suggests the existence of a charged $\bar D D^*+D\bar D^*$ molecular state with $I(J^P)=1(1^+)$, which could be an isovector brother of the famou...
[ { "created": "Tue, 26 Mar 2013 00:31:36 GMT", "version": "v1" }, { "created": "Thu, 12 Sep 2013 20:38:17 GMT", "version": "v2" } ]
2015-06-15
[ [ "Wang", "Qian", "" ], [ "Hanhart", "Christoph", "" ], [ "Zhao", "Qiang", "" ] ]
The observation of $Z_c(3900)$ by the BESIII collaboration in the invariant mass spectrum of $J/\psi\pi^\pm$ in $e^+e^-\to J/\psi\pi^+\pi^-$ at the center of mass 4.260 GeV suggests the existence of a charged $\bar D D^*+D\bar D^*$ molecular state with $I(J^P)=1(1^+)$, which could be an isovector brother of the famous ...
1012.0169
C\'edric Lorc\'e
C\'edric Lorc\'e, Barbara Pasquini and Marc Vanderhaeghen
Light-front transverse charge densities
Contributed to the 19th International Spin Physics Symposium (SPIN 2010), Sep 27-Oct 2, 2010, Juelich, Germany. 5 pages, 2 figures, 1 table, uses jpconf.cls, jpconf11.clo, iopams.sty (included)
null
10.1088/1742-6596/295/1/012050
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the recent interpretation of quark-distribution functions in the plane transverse to the light-cone direction. Such a mapping is model independent and allows one to build up multidimensional pictures of the hadron and to develop a semi-classical interpretation of the quark dynamics. We comment briefly the ...
[ { "created": "Wed, 1 Dec 2010 12:02:24 GMT", "version": "v1" } ]
2015-05-20
[ [ "Lorcé", "Cédric", "" ], [ "Pasquini", "Barbara", "" ], [ "Vanderhaeghen", "Marc", "" ] ]
We discuss the recent interpretation of quark-distribution functions in the plane transverse to the light-cone direction. Such a mapping is model independent and allows one to build up multidimensional pictures of the hadron and to develop a semi-classical interpretation of the quark dynamics. We comment briefly the re...
1210.6262
Anna-Zuzana Dubnickova
Stanislav Dubnicka and Anna Z. Dubnickova
Meson electromagnetic form factors
Invited talk on 12th International Workshop on Meson Production, Properties and Interaction Krakow, Poland, 31 May - 5 June 2012. (11 latex pages, 7 eps figures)
null
10.1051/epjconf/20123701003
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The electromagnetic structure of the pseudoscalar meson nonet is completely described by the sophisticated Unitary&Analytic model, respecting all known theoretical properties of the corresponding form factors.
[ { "created": "Tue, 23 Oct 2012 15:09:50 GMT", "version": "v1" } ]
2017-08-23
[ [ "Dubnicka", "Stanislav", "" ], [ "Dubnickova", "Anna Z.", "" ] ]
The electromagnetic structure of the pseudoscalar meson nonet is completely described by the sophisticated Unitary&Analytic model, respecting all known theoretical properties of the corresponding form factors.
1404.2472
Kazunori Nakayama
Kazunori Nakayama, Fuminobu Takahashi, Tsutomu T. Yanagida
Gravitino Problem in Supergravity Chaotic Inflation and SUSY Breaking Scale after BICEP2
18 pages, 1 figure
Phys. Lett. B 734 (2014) 358-363
10.1016/j.physletb.2014.05.078
UT-14-16, TU-965, IPMU14-0092
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Gravitinos are generically produced by inflaton decays, which place tight constraints on inflation models as well as supersymmetry breaking scale. We revisit the gravitino production from decays of the inflaton and the supersymmetry breaking field, based on a chaotic inflation model suggested by the recent BICEP2 res...
[ { "created": "Wed, 9 Apr 2014 13:00:47 GMT", "version": "v1" } ]
2014-07-15
[ [ "Nakayama", "Kazunori", "" ], [ "Takahashi", "Fuminobu", "" ], [ "Yanagida", "Tsutomu T.", "" ] ]
Gravitinos are generically produced by inflaton decays, which place tight constraints on inflation models as well as supersymmetry breaking scale. We revisit the gravitino production from decays of the inflaton and the supersymmetry breaking field, based on a chaotic inflation model suggested by the recent BICEP2 resul...
1712.01959
Daniel Hackett
Daniel C. Hackett
Stability Analysis of the Chiral Transition in SU(4) Gauge Theory with Fermions in Multiple Representations
16 pages, 2 appendices
Phys. Rev. D 97, 055050 (2018)
10.1103/PhysRevD.97.055050
COLO-HEP-594
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a Pisarski-Wilczek stability analysis of SU(4) gauge theory coupled simultaneously to fermions charged under the fundamental and two-index antisymmetric representations of the gauge group. We carry out the calculation to one loop in the $\epsilon$ expansion, assuming that the two species of fermion undergo...
[ { "created": "Tue, 5 Dec 2017 22:51:40 GMT", "version": "v1" } ]
2018-04-04
[ [ "Hackett", "Daniel C.", "" ] ]
We present a Pisarski-Wilczek stability analysis of SU(4) gauge theory coupled simultaneously to fermions charged under the fundamental and two-index antisymmetric representations of the gauge group. We carry out the calculation to one loop in the $\epsilon$ expansion, assuming that the two species of fermion undergo a...
0810.3411
Giulia Pancheri Dr.
A. Achilli (INFN & U. Perugia), R.M. Godbole (CTS, Bangalore), A. Grau (U. Granada), G. Pancheri (INFN Frascati), Y.N. Srivastava (INFN & U.Perugia)
Zero momentum gluons and the total pp and pbarp cross-sections
4 pages, 1 figure, uses slac_one.rtx, 34th ICHEP Conference, Philadelphia 2008
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We describe a QCD motivated model for total cross-sections which uses the eikonal representation and incorporates QCD mini-jets to drive the rise with energy of the cross-section, while the impact parameter distribution is obtained through the Fourier transform of the transverse momentum distribution of soft gluons e...
[ { "created": "Sun, 19 Oct 2008 16:08:03 GMT", "version": "v1" } ]
2008-10-21
[ [ "Achilli", "A.", "", "INFN & U. Perugia" ], [ "Godbole", "R. M.", "", "CTS, Bangalore" ], [ "Grau", "A.", "", "U. Granada" ], [ "Pancheri", "G.", "", "INFN Frascati" ], [ "Srivastava", "Y. N.", "", "INFN & U.Perugia" ...
We describe a QCD motivated model for total cross-sections which uses the eikonal representation and incorporates QCD mini-jets to drive the rise with energy of the cross-section, while the impact parameter distribution is obtained through the Fourier transform of the transverse momentum distribution of soft gluons emi...
2001.11232
Ralf-Arno Tripolt
Ralf-Arno Tripolt
Electromagnetic and weak probes: theory
Invited Plenary Talk given at Quark Matter 2019, to be published in Nuclear Physics A
null
10.1016/j.nuclphysa.2020.121755
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
An overview of the latest theoretical developments and results on electromagnetic and weak probes in relativistic heavy-ion collisions is presented. The possibilities to use electromagnetic probes, i.e., photons and dileptons, as a spectrometer, thermometer, chronometer, polarimeter, barometer, and multimeter of the ...
[ { "created": "Thu, 30 Jan 2020 09:49:45 GMT", "version": "v1" }, { "created": "Mon, 2 Mar 2020 14:27:17 GMT", "version": "v2" }, { "created": "Wed, 11 Mar 2020 12:39:58 GMT", "version": "v3" } ]
2021-02-03
[ [ "Tripolt", "Ralf-Arno", "" ] ]
An overview of the latest theoretical developments and results on electromagnetic and weak probes in relativistic heavy-ion collisions is presented. The possibilities to use electromagnetic probes, i.e., photons and dileptons, as a spectrometer, thermometer, chronometer, polarimeter, barometer, and multimeter of the co...
hep-ph/9506335
null
E.Kh. Akhmedov
A Dynamical Left--Right Symmetry Breaking Model
6 pages, latex, no figures
null
null
IC/95/105
hep-ph
null
Left--right symmetry breaking in a model with composite Higgs scalars is discussed. It is assumed that the low--energy degrees of freedom are just fermions and gauge bosons and that the Higgs bosons are generated dynamically through a set of gauge-- and parity--invariant 4-fermion operators. It is shown that in a mod...
[ { "created": "Thu, 15 Jun 1995 15:19:12 GMT", "version": "v1" } ]
2007-05-23
[ [ "Akhmedov", "E. Kh.", "" ] ]
Left--right symmetry breaking in a model with composite Higgs scalars is discussed. It is assumed that the low--energy degrees of freedom are just fermions and gauge bosons and that the Higgs bosons are generated dynamically through a set of gauge-- and parity--invariant 4-fermion operators. It is shown that in a model...
2405.19039
Xin-Zhen Weng
Xin-Zhen Weng and Wei-Zhen Deng and Shi-Lin Zhu
Heavy baryons in the relativized quark model with chromodynamics
20 pages, 10 figures
null
null
null
hep-ph hep-ex hep-lat
http://creativecommons.org/licenses/by/4.0/
Following the work of Capstick and Isgur [\href{https://doi.org/10.1103/PhysRevD.34.2809}{Phys.~Rev.~D~34,~2809~(1986)}], we systematically study the mass spectrum of the heavy baryons in the relativized quark potential model with chromodynamics. Besides the original Godfrey-Isgur (GI) model, we also adopt a modified...
[ { "created": "Wed, 29 May 2024 12:26:54 GMT", "version": "v1" } ]
2024-05-30
[ [ "Weng", "Xin-Zhen", "" ], [ "Deng", "Wei-Zhen", "" ], [ "Zhu", "Shi-Lin", "" ] ]
Following the work of Capstick and Isgur [\href{https://doi.org/10.1103/PhysRevD.34.2809}{Phys.~Rev.~D~34,~2809~(1986)}], we systematically study the mass spectrum of the heavy baryons in the relativized quark potential model with chromodynamics. Besides the original Godfrey-Isgur (GI) model, we also adopt a modified G...
2311.13023
Eduard De La Cruz-Burelo
J. A. Colorado-Caicedo, C. Lizama-Garcia, and E. De La Cruz-Burelo
Modeling of Energy Distributions in Pseudo-Rest Frame Analyses of Two-Body Decays with Missing Particles
5 pages, 7 figures
null
null
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
In this study, we introduce a parametric function designed to describe the energy distribution of the observed particle within the framework of two-body decays involving one undetected particle, analyzed using the pseudo-rest frame approximation. While we illustrate its effectiveness through the specific case study o...
[ { "created": "Tue, 21 Nov 2023 22:09:46 GMT", "version": "v1" } ]
2023-11-23
[ [ "Colorado-Caicedo", "J. A.", "" ], [ "Lizama-Garcia", "C.", "" ], [ "De La Cruz-Burelo", "E.", "" ] ]
In this study, we introduce a parametric function designed to describe the energy distribution of the observed particle within the framework of two-body decays involving one undetected particle, analyzed using the pseudo-rest frame approximation. While we illustrate its effectiveness through the specific case study of ...
1902.08096
Aravind Holur Vijay
Rohini Godbole, Monoranjan Guchait, Charanjit K. Khosa, Jayita Lahiri, Seema Sharma, Aravind H. Vijay
Boosted Top quark polarization
19 pages, 12 figures, Substantially revised text, results remain unchanged. Added few references. To be published in Physical Review D
Phys. Rev. D 100, 056010 (2019)
10.1103/PhysRevD.100.056010
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In top quark production, the polarization of top quarks, decided by the chiral structure of couplings, is likely to be modified in the presence of any new physics contribution to the production. Hence the same is a good discriminator for those new physics models wherein the couplings have a chiral structure different...
[ { "created": "Thu, 21 Feb 2019 15:23:38 GMT", "version": "v1" }, { "created": "Tue, 13 Aug 2019 13:39:21 GMT", "version": "v2" } ]
2019-09-25
[ [ "Godbole", "Rohini", "" ], [ "Guchait", "Monoranjan", "" ], [ "Khosa", "Charanjit K.", "" ], [ "Lahiri", "Jayita", "" ], [ "Sharma", "Seema", "" ], [ "Vijay", "Aravind H.", "" ] ]
In top quark production, the polarization of top quarks, decided by the chiral structure of couplings, is likely to be modified in the presence of any new physics contribution to the production. Hence the same is a good discriminator for those new physics models wherein the couplings have a chiral structure different t...
1506.01399
Philip D. Mannheim
Philip D. Mannheim
Living Without Supersymmetry -- the Conformal Alternative and a Dynamical Higgs Boson
53 pages, 12 figures. Added section on the all-order renormalizability of the four-fermion interaction
null
null
null
hep-ph gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show that key results of supersymmetry can be achieved via conformal symmetry. We propose that the Higgs boson be a dynamical bound state rather than an elementary scalar, so that there is no quadratic divergence self-energy problem for it and no need to invoke supersymmetry to resolve it. We study a conformal inv...
[ { "created": "Mon, 1 Jun 2015 19:40:21 GMT", "version": "v1" }, { "created": "Thu, 6 Aug 2015 17:59:37 GMT", "version": "v2" }, { "created": "Thu, 8 Sep 2016 19:20:21 GMT", "version": "v3" }, { "created": "Tue, 6 Jun 2017 17:51:30 GMT", "version": "v4" } ]
2017-06-07
[ [ "Mannheim", "Philip D.", "" ] ]
We show that key results of supersymmetry can be achieved via conformal symmetry. We propose that the Higgs boson be a dynamical bound state rather than an elementary scalar, so that there is no quadratic divergence self-energy problem for it and no need to invoke supersymmetry to resolve it. We study a conformal invar...
2007.12187
Kyle Lee
Pedro Cal, Kyle Lee, Felix Ringer, Wouter J. Waalewijn
Jet energy drop
49 pages, 25 figures, published version
null
10.1007/JHEP11(2020)012
NIKHEF 20-017, YITP-SB-20-16
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the jet energy drop, which is the relative difference between the groomed and ungroomed jet energy or transverse momentum. It is one of the fundamental quantities that characterizes the impact of grooming on jets produced in high energy collisions. We consider three different grooming algorithms i) soft drop...
[ { "created": "Thu, 23 Jul 2020 18:00:01 GMT", "version": "v1" }, { "created": "Mon, 14 Feb 2022 17:39:37 GMT", "version": "v2" } ]
2022-02-15
[ [ "Cal", "Pedro", "" ], [ "Lee", "Kyle", "" ], [ "Ringer", "Felix", "" ], [ "Waalewijn", "Wouter J.", "" ] ]
We study the jet energy drop, which is the relative difference between the groomed and ungroomed jet energy or transverse momentum. It is one of the fundamental quantities that characterizes the impact of grooming on jets produced in high energy collisions. We consider three different grooming algorithms i) soft drop, ...
2101.02607
Sanjib Kumar Agarwalla
Anil Kumar, Amina Khatun, Sanjib Kumar Agarwalla, Amol Dighe
A New Approach to Probe Non-Standard Interactions in Atmospheric Neutrino Experiments
30 pages, 11 figures, 4 tables. Published in JHEP. Matches with the published version
null
10.1007/JHEP04(2021)159
IP/BBSR/2020-8, TIFR/TH/20-49
hep-ph hep-ex physics.ins-det
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a new approach to explore the neutral-current non-standard neutrino interactions (NSI) in atmospheric neutrino experiments using oscillation dips and valleys in reconstructed muon observables, at a detector like ICAL that can identify the muon charge. We focus on the flavor-changing NSI parameter $\varepsi...
[ { "created": "Thu, 7 Jan 2021 16:13:44 GMT", "version": "v1" }, { "created": "Wed, 21 Apr 2021 06:50:58 GMT", "version": "v2" } ]
2021-05-05
[ [ "Kumar", "Anil", "" ], [ "Khatun", "Amina", "" ], [ "Agarwalla", "Sanjib Kumar", "" ], [ "Dighe", "Amol", "" ] ]
We propose a new approach to explore the neutral-current non-standard neutrino interactions (NSI) in atmospheric neutrino experiments using oscillation dips and valleys in reconstructed muon observables, at a detector like ICAL that can identify the muon charge. We focus on the flavor-changing NSI parameter $\varepsilo...
hep-ph/0210196
Rohini M. Godbole
Rohini M. Godbole
Exotic SUSY scenarios
5 pages, 3 figures, LaTeX, Talk presented at the International Conference of High Energy Physics, Amsterdam, July 24-31, 2002
null
10.1016/S0920-5632(03)90656-6
CERN-TH/2002-268
hep-ph
null
In this talk I discuss some scenarios which involve small extensions of the ideas usually considered in the Minimal Supersymmetric Standard Model (MSSM). I present results of a study of the implication of non-universal gaugino masses (NGM) for the invisible decays of the lightest scalar and the correlation of the sam...
[ { "created": "Sun, 13 Oct 2002 15:25:00 GMT", "version": "v1" } ]
2009-11-07
[ [ "Godbole", "Rohini M.", "" ] ]
In this talk I discuss some scenarios which involve small extensions of the ideas usually considered in the Minimal Supersymmetric Standard Model (MSSM). I present results of a study of the implication of non-universal gaugino masses (NGM) for the invisible decays of the lightest scalar and the correlation of the same ...
2104.03125
Yasemin \"Unal
Y. \"Unal, A. K\"u\c{c}\"ukarslan, S. Scherer
Axial-vector nucleon-to-delta transition form factors using the complex-mass renormalization scheme
22 pages, 8 figures
null
10.1103/PhysRevD.104.094014
null
hep-ph nucl-th
http://creativecommons.org/licenses/by/4.0/
We investigate the axial-vector nucleon-to-delta transition form factors in the framework of relativistic baryon chiral perturbation theory at the one-loop order using the complex-mass renormalization scheme. We determine the available six free parameters by fitting to an empirical parametrization of the form factors...
[ { "created": "Wed, 7 Apr 2021 13:55:36 GMT", "version": "v1" } ]
2021-11-24
[ [ "Ünal", "Y.", "" ], [ "Küçükarslan", "A.", "" ], [ "Scherer", "S.", "" ] ]
We investigate the axial-vector nucleon-to-delta transition form factors in the framework of relativistic baryon chiral perturbation theory at the one-loop order using the complex-mass renormalization scheme. We determine the available six free parameters by fitting to an empirical parametrization of the form factors o...
1912.09370
Lance Dixon
Lance J. Dixon, Enrico Herrmann, Kai Yan, Hua Xing Zhu
Soft gluon emission at two loops in full color
40 pages, 3 figures, 1 table. v2: important correction to eq. (3.12), leading to cancellation of potential factorization-violating terms in the cross section, eq. (4.30)
null
10.1007/JHEP05(2020)135
SLAC-PUB-17480, MPP-2019-255
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The soft emission factor is a central ingredient in the factorization of generic $n$-particle gauge theory amplitudes with one soft gluon in the external state. We present the complete two-loop soft factor, capturing the leading power behavior in the soft-gluon momentum. At two loops, the color structure and the kine...
[ { "created": "Thu, 19 Dec 2019 16:54:11 GMT", "version": "v1" }, { "created": "Thu, 23 May 2024 09:03:41 GMT", "version": "v2" } ]
2024-05-24
[ [ "Dixon", "Lance J.", "" ], [ "Herrmann", "Enrico", "" ], [ "Yan", "Kai", "" ], [ "Zhu", "Hua Xing", "" ] ]
The soft emission factor is a central ingredient in the factorization of generic $n$-particle gauge theory amplitudes with one soft gluon in the external state. We present the complete two-loop soft factor, capturing the leading power behavior in the soft-gluon momentum. At two loops, the color structure and the kinema...
2003.13712
F\'elix Napole\'on D\'iaz Desposorio MSc
F. N. D\'iaz, J. Hoefken, A. M. Gago
Effects of the Violation of the Equivalence Principle at DUNE
14 pages, 14 figures
Phys. Rev. D 102, 055020 (2020)
10.1103/PhysRevD.102.055020
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A number of different effects of the violation of the Equivalence Principle (VEP), taken as sub-leading mechanism of neutrino flavor oscillation, are examined within the framework of the DUNE experiment. We study the possibility of obtaining a misleading neutrino oscillation parameter region caused by our unawareness...
[ { "created": "Mon, 30 Mar 2020 18:00:15 GMT", "version": "v1" }, { "created": "Wed, 29 Apr 2020 03:22:33 GMT", "version": "v2" } ]
2020-10-07
[ [ "Díaz", "F. N.", "" ], [ "Hoefken", "J.", "" ], [ "Gago", "A. M.", "" ] ]
A number of different effects of the violation of the Equivalence Principle (VEP), taken as sub-leading mechanism of neutrino flavor oscillation, are examined within the framework of the DUNE experiment. We study the possibility of obtaining a misleading neutrino oscillation parameter region caused by our unawareness o...
0906.2834
Han-Xin He
Han-xin He
Transverse Symmetry Transformations and the Quark-Gluon Vertex Function in QCD
13 pages, no figure
Phys.Rev.D80:016004,2009
10.1103/PhysRevD.80.016004
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The transverse symmetry transformations associated with the normal symmetry transformations in gauge theories are introduced, which at first are used to reproduce the transverse Ward-Takahashi identities in the Abelian theory QED. Then the transverse symmetry transformations associated with the BRST symmetry and chir...
[ { "created": "Tue, 16 Jun 2009 01:50:23 GMT", "version": "v1" } ]
2009-09-02
[ [ "He", "Han-xin", "" ] ]
The transverse symmetry transformations associated with the normal symmetry transformations in gauge theories are introduced, which at first are used to reproduce the transverse Ward-Takahashi identities in the Abelian theory QED. Then the transverse symmetry transformations associated with the BRST symmetry and chiral...
hep-ph/0304055
Alexander Friedland
Alexander Friedland (LANL and IAS) and Cecilia Lunardini (IAS)
Neutrino flavor conversion in a neutrino background: single- versus multi-particle description
12 pages, 3 figures, minor typos corrected
Phys.Rev. D68 (2003) 013007
10.1103/PhysRevD.68.013007
LA-UR-03-2162, NSF-KITP-03-20
hep-ph
null
In the early Universe, or near a supernova core, neutrino flavor evolution may be affected by coherent neutrino-neutrino scattering. We develop a microscopic picture of this phenomenon. We show that coherent scattering does not lead to the formation of entangled states in the neutrino ensemble and therefore the evolu...
[ { "created": "Mon, 7 Apr 2003 19:51:28 GMT", "version": "v1" }, { "created": "Tue, 22 Jul 2003 01:36:13 GMT", "version": "v2" } ]
2009-11-10
[ [ "Friedland", "Alexander", "", "LANL and IAS" ], [ "Lunardini", "Cecilia", "", "IAS" ] ]
In the early Universe, or near a supernova core, neutrino flavor evolution may be affected by coherent neutrino-neutrino scattering. We develop a microscopic picture of this phenomenon. We show that coherent scattering does not lead to the formation of entangled states in the neutrino ensemble and therefore the evoluti...
1906.03030
Carolina Arbelaez
Carolina Arbel\'aez, Juan Carlos Helo, Martin Hirsch
Long-lived heavy particles in neutrino mass models
References added. Charged fermion decays corrected, main conclusions unchanged
Phys. Rev. D 100, 055001 (2019)
10.1103/PhysRevD.100.055001
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
All extensions of the standard model that generate Majorana neutrino masses at the electro-weak scale introduce some "heavy" mediators, either fermions and/or scalars, weakly coupled to leptons. Here, by "heavy" we understand implicitly the mass range between a few 100 GeV up to, say, roughly 2 TeV, such that these p...
[ { "created": "Fri, 7 Jun 2019 12:01:05 GMT", "version": "v1" }, { "created": "Fri, 5 Jul 2019 16:43:34 GMT", "version": "v2" } ]
2019-09-11
[ [ "Arbeláez", "Carolina", "" ], [ "Helo", "Juan Carlos", "" ], [ "Hirsch", "Martin", "" ] ]
All extensions of the standard model that generate Majorana neutrino masses at the electro-weak scale introduce some "heavy" mediators, either fermions and/or scalars, weakly coupled to leptons. Here, by "heavy" we understand implicitly the mass range between a few 100 GeV up to, say, roughly 2 TeV, such that these par...
hep-ph/0304001
Pavel Nadolsky
P.M. Nadolsky, C.-P. Yuan
Soft parton radiation in polarized vector boson production: theoretical issues
35 pages, 2 figures; minor modifications; bibliography references added
Nucl.Phys.B666:3-30,2003
10.1016/S0550-3213(03)00579-0
null
hep-ph
null
Accurate measurement of spin-dependent parton distributions in production of electroweak bosons with polarized proton beams at the Relativistic Heavy Ion Collider depends on good understanding of QCD radiation at small transverse momenta $q_T$ of vector bosons. We present a theoretical formalism for small-$q_T$ resum...
[ { "created": "Tue, 1 Apr 2003 20:41:32 GMT", "version": "v1" }, { "created": "Thu, 26 Jun 2003 20:12:34 GMT", "version": "v2" } ]
2008-11-26
[ [ "Nadolsky", "P. M.", "" ], [ "Yuan", "C. -P.", "" ] ]
Accurate measurement of spin-dependent parton distributions in production of electroweak bosons with polarized proton beams at the Relativistic Heavy Ion Collider depends on good understanding of QCD radiation at small transverse momenta $q_T$ of vector bosons. We present a theoretical formalism for small-$q_T$ resumma...
0904.1165
Marco Cirelli
Carolin B. Braeuninger, Marco Cirelli
Anti-deuterons from heavy Dark Matter
17 pages, 6 figures
Phys.Lett.B678:20-31,2009
10.1016/j.physletb.2009.05.059
SACLAY-T09/027
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the fluxes of anti-deuterons that could be produced by annihilations in the galactic halo of Dark Matter particles with multi-TeV mass and a large annihilation cross section, as indicated by the recent PAMELA results. The model of Minimal Dark Matter (MDM) is an example in this category. We find that the flu...
[ { "created": "Tue, 7 Apr 2009 15:20:09 GMT", "version": "v1" } ]
2010-12-17
[ [ "Braeuninger", "Carolin B.", "" ], [ "Cirelli", "Marco", "" ] ]
We study the fluxes of anti-deuterons that could be produced by annihilations in the galactic halo of Dark Matter particles with multi-TeV mass and a large annihilation cross section, as indicated by the recent PAMELA results. The model of Minimal Dark Matter (MDM) is an example in this category. We find that the fluxe...
hep-ph/9411314
Ed Stoeffhaas
A. Djouadi and M. Drees
Higgs and Z boson decays into light gluinos
Latex file, 16 pages of text. 8 uufiled postscript figures included. Compressed postscript version with figures available by anonymous ftp at ftp://phenom.physics.wisc.edu/pub/preprints/current/madph-94-853.ps.Z
Phys.Rev. D51 (1995) 4997-5006
10.1103/PhysRevD.51.4997
MADPH-94-853
hep-ph
null
We calculate the decay rate of scalar and pseudoscalar Higgs bosons into a pair of gluinos, within the Minimal Supersymmetric Standard Model. In the theoretically and experimentally allowed light gluino window, $\mg \sim $ 3--5 GeV, gluino pairs can completely dominate the decays of the light scalar Higgs boson and p...
[ { "created": "Wed, 16 Nov 1994 16:42:23 GMT", "version": "v1" } ]
2009-10-28
[ [ "Djouadi", "A.", "" ], [ "Drees", "M.", "" ] ]
We calculate the decay rate of scalar and pseudoscalar Higgs bosons into a pair of gluinos, within the Minimal Supersymmetric Standard Model. In the theoretically and experimentally allowed light gluino window, $\mg \sim $ 3--5 GeV, gluino pairs can completely dominate the decays of the light scalar Higgs boson and pla...
0707.0064
Luis Manuel Rico Gutierrez
L. M. Rico, M. Kirchbach
Causal Propagation of Spin-Cascades
10 pages
Mod.Phys.Lett.A21:2961-2969,2006
10.1142/S0217732306020779
null
hep-ph
null
We gauge the direct product of the Proca with the Dirac equation that describes the coupling to the electromagnetic field of the spin-cascade (1/2,3/2) residing in the four-vector spinor and analyze propagation of its wave fronts in terms of the Courant-Hilbert criteria. We show that the differential equation under c...
[ { "created": "Sat, 30 Jun 2007 14:25:30 GMT", "version": "v1" } ]
2008-11-26
[ [ "Rico", "L. M.", "" ], [ "Kirchbach", "M.", "" ] ]
We gauge the direct product of the Proca with the Dirac equation that describes the coupling to the electromagnetic field of the spin-cascade (1/2,3/2) residing in the four-vector spinor and analyze propagation of its wave fronts in terms of the Courant-Hilbert criteria. We show that the differential equation under con...
hep-ph/9409351
Thomas Gehrmann
T.Gehrmann and W.J.Stirling
Spin-dependent Parton Distributions
2 pages, DTP/94/82, three figures and ichep-LaTeX-style file included in .uu-format
null
null
null
hep-ph
null
We perform a global leading-order QCD fit to recent polarized structure function data in order to extract a consistent set of spin-dependent parton distributions. Assuming that there is no significant intrinsic polarization of the quark sea, the data are consistent with a modest amount of the proton's spin carried by...
[ { "created": "Mon, 19 Sep 1994 14:31:21 GMT", "version": "v1" } ]
2007-05-23
[ [ "Gehrmann", "T.", "" ], [ "Stirling", "W. J.", "" ] ]
We perform a global leading-order QCD fit to recent polarized structure function data in order to extract a consistent set of spin-dependent parton distributions. Assuming that there is no significant intrinsic polarization of the quark sea, the data are consistent with a modest amount of the proton's spin carried by t...
0808.3632
Michael Kuchiev
Michael Kuchiev, Victor Flambaum, and Edward Shuryak
On bound states of multiple t-quarks due to Higgs exchange
3 pages
Phys.Rev.D78:077502,2008
10.1103/PhysRevD.78.077502
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Froggatt, Nielsen et al suggested that the Higgs boson exchange between top quarks produces enough attraction to generate their multiple bound states. Furthermore they claimed that the system of 6 top and 6 anti-top quarks is bound so strongly that the binding energy nearly compensates the masses of t-quarks, making ...
[ { "created": "Wed, 27 Aug 2008 06:34:28 GMT", "version": "v1" } ]
2008-11-26
[ [ "Kuchiev", "Michael", "" ], [ "Flambaum", "Victor", "" ], [ "Shuryak", "Edward", "" ] ]
Froggatt, Nielsen et al suggested that the Higgs boson exchange between top quarks produces enough attraction to generate their multiple bound states. Furthermore they claimed that the system of 6 top and 6 anti-top quarks is bound so strongly that the binding energy nearly compensates the masses of t-quarks, making it...
1912.11256
Jialun Ping
Hongxia Huang, Xinmei Zhu, Jialun Ping
Reanalysis of the most strange dibaryon within constituent quark models
8 pages, 3 figures. arXiv admin note: text overlap with arXiv:1507.07124
Phys. Rev. C 101, 034004 (2020)
10.1103/PhysRevC.101.034004
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The most strange dibaryon $\Omega\Omega$ with quantum numbers $S=-6$, $I=0$, and $J^{P}=0^{+},~1^{-},~2^{+},~3^{-}$ is reanalyzed in the framework of quark delocalization color screening model (QDCSM) and chiral quark model (ChQM). The $\Omega\Omega$ dibaryon with $J^{P}=0^{+}$ is bound, and the one with other quantu...
[ { "created": "Tue, 24 Dec 2019 09:16:24 GMT", "version": "v1" } ]
2020-04-08
[ [ "Huang", "Hongxia", "" ], [ "Zhu", "Xinmei", "" ], [ "Ping", "Jialun", "" ] ]
The most strange dibaryon $\Omega\Omega$ with quantum numbers $S=-6$, $I=0$, and $J^{P}=0^{+},~1^{-},~2^{+},~3^{-}$ is reanalyzed in the framework of quark delocalization color screening model (QDCSM) and chiral quark model (ChQM). The $\Omega\Omega$ dibaryon with $J^{P}=0^{+}$ is bound, and the one with other quantum ...
1004.4635
Kyoungchul Kong
Kyoungchul Kong, Seong Chan Park, Thomas G. Rizzo
A vector-like fourth generation with a discrete symmetry from Split-UED
13 pages, 5 figures
JHEP 1007:059,2010
10.1007/JHEP07(2010)059
IPMU10-0054, SLAC-PUB-14049
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Split-UED allows for the possibility that the lowest lying KK excitations of the Standard Model fermions can be much lighter than the corresponding gauge or Higgs KK states. This can happen provided the fermion bulk masses are chosen to be large, in units of the inverse compactification radius, 1/R, and negative. In ...
[ { "created": "Mon, 26 Apr 2010 20:03:36 GMT", "version": "v1" } ]
2014-11-20
[ [ "Kong", "Kyoungchul", "" ], [ "Park", "Seong Chan", "" ], [ "Rizzo", "Thomas G.", "" ] ]
Split-UED allows for the possibility that the lowest lying KK excitations of the Standard Model fermions can be much lighter than the corresponding gauge or Higgs KK states. This can happen provided the fermion bulk masses are chosen to be large, in units of the inverse compactification radius, 1/R, and negative. In th...
1305.0621
H\'ector Novales-S\'anchez
M. A. L\'opez-Osorio, E. Mart\'inez-Pascual, J. Montano, H. Novales-S\'anchez, J. J. Toscano, and E. S. Tututi
Trilinear gauge boson couplings in the standard model with one universal extra dimension
25 pages, 6 figures, new references added, typos corrected
Phys.Rev. D88 (2013) 016010
10.1103/PhysRevD.88.016010
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
One-loop effects of Standard Model (SM) extensions comprising universal extra dimensions are essential as a consequence of Kaluza-Klein (KK) parity conservation, for they represent the very first presumable virtual effects on low-energy observables. In this paper, we calculate the one-loop CP-even contributions to th...
[ { "created": "Fri, 3 May 2013 04:23:34 GMT", "version": "v1" }, { "created": "Wed, 25 Sep 2013 04:57:00 GMT", "version": "v2" } ]
2013-09-26
[ [ "López-Osorio", "M. A.", "" ], [ "Martínez-Pascual", "E.", "" ], [ "Montano", "J.", "" ], [ "Novales-Sánchez", "H.", "" ], [ "Toscano", "J. J.", "" ], [ "Tututi", "E. S.", "" ] ]
One-loop effects of Standard Model (SM) extensions comprising universal extra dimensions are essential as a consequence of Kaluza-Klein (KK) parity conservation, for they represent the very first presumable virtual effects on low-energy observables. In this paper, we calculate the one-loop CP-even contributions to the ...
0803.4477
Chung-Lin Shan
Manuel Drees, Chung-Lin Shan
Model-Independent Determination of the WIMP Mass from Direct Dark Matter Detection Data
30 pages, 15 figures, typos fixed, one reference added
JCAP 0806:012,2008
10.1088/1475-7516/2008/06/012
KIAS-P08026
hep-ph astro-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Weakly Interacting Massive Particles (WIMPs) are one of the leading candidates for Dark Matter. We develop a model-independent method for determining the mass $m_\chi$ of the WIMP by using data (i.e., measured recoil energies) of direct detection experiments. Our method is independent of the as yet unknown WIMP densi...
[ { "created": "Mon, 31 Mar 2008 15:35:17 GMT", "version": "v1" }, { "created": "Thu, 10 Apr 2008 01:53:52 GMT", "version": "v2" }, { "created": "Tue, 17 Jun 2008 14:26:21 GMT", "version": "v3" } ]
2009-01-06
[ [ "Drees", "Manuel", "" ], [ "Shan", "Chung-Lin", "" ] ]
Weakly Interacting Massive Particles (WIMPs) are one of the leading candidates for Dark Matter. We develop a model-independent method for determining the mass $m_\chi$ of the WIMP by using data (i.e., measured recoil energies) of direct detection experiments. Our method is independent of the as yet unknown WIMP density...
2010.09523
Ryan Plestid
Ryan Plestid
Luminous solar neutrinos II: Mass-mixing portals
5 pages, companion paper to arXiv:2010.04193 | Discussion of BBN constraints added, small cosmetic changes, typos corrected
null
10.1103/PhysRevD.104.075028
null
hep-ph astro-ph.HE astro-ph.SR
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Solar neutrinos can be efficiently upscattered to MeV scale heavy neutral leptons (HNLs) within the Earth's mantle. HNLs can then decay to electron-positron pairs leading to energy deposition inside large-volume detectors. In this paper we consider mass-portal upscattering of solar neutrinos to HNLs of mass 20 MeV $\...
[ { "created": "Mon, 19 Oct 2020 13:55:27 GMT", "version": "v1" }, { "created": "Tue, 27 Apr 2021 15:29:52 GMT", "version": "v2" } ]
2021-11-03
[ [ "Plestid", "Ryan", "" ] ]
Solar neutrinos can be efficiently upscattered to MeV scale heavy neutral leptons (HNLs) within the Earth's mantle. HNLs can then decay to electron-positron pairs leading to energy deposition inside large-volume detectors. In this paper we consider mass-portal upscattering of solar neutrinos to HNLs of mass 20 MeV $\ge...
hep-ph/9805408
Jiang Yi
Chang Chao-Hsi, Han Liang, Jiang Yi, Li Xue-Qian, Ma Wen-Gan, Zhou Hong and Zhou Mian-Lai
CP violation in the annihilation $e^{+}~e^{-} \to t~\bar{t}$ within the Model-III of the two-Higgs-doublet extension
14 pages, LaTex, including 16 figures in eps files
null
null
null
hep-ph
null
The CP-violating effects are studied in the electron-positron annihilation to produce $t\bar{t}$ pair within the Model-III of the two-Higgs-doublet extensions, which allows flavor changing neutral currents via Higgs exchanges. Complete analytical expressions for the form factors of the top quark electric and weak dip...
[ { "created": "Thu, 21 May 1998 03:34:06 GMT", "version": "v1" }, { "created": "Mon, 22 Jun 1998 07:11:00 GMT", "version": "v2" } ]
2009-09-25
[ [ "Chao-Hsi", "Chang", "" ], [ "Liang", "Han", "" ], [ "Yi", "Jiang", "" ], [ "Xue-Qian", "Li", "" ], [ "Wen-Gan", "Ma", "" ], [ "Hong", "Zhou", "" ], [ "Mian-Lai", "Zhou", "" ] ]
The CP-violating effects are studied in the electron-positron annihilation to produce $t\bar{t}$ pair within the Model-III of the two-Higgs-doublet extensions, which allows flavor changing neutral currents via Higgs exchanges. Complete analytical expressions for the form factors of the top quark electric and weak dipol...
hep-ph/0207311
Alessio Del Fabbro
A. Del Fabbro, D. Treleani
Double parton scatterings in b-quark pairs production at the LHC
17 pages, 6 figures
Phys.Rev.D66:074012,2002
10.1103/PhysRevD.66.074012
null
hep-ph
null
A sizable rate of events where two pairs of b-quarks are produced contemporarily is foreseen at the CERN LHC, as a consequence of the large parton luminosity. At very high energies both single and the double parton scatterings contribute to the process, the latter mechanisms, although power suppressed, giving the dom...
[ { "created": "Thu, 25 Jul 2002 13:30:44 GMT", "version": "v1" } ]
2008-11-26
[ [ "Del Fabbro", "A.", "" ], [ "Treleani", "D.", "" ] ]
A sizable rate of events where two pairs of b-quarks are produced contemporarily is foreseen at the CERN LHC, as a consequence of the large parton luminosity. At very high energies both single and the double parton scatterings contribute to the process, the latter mechanisms, although power suppressed, giving the domin...
hep-ph/0007343
Dejan Stojkovic
Dejan Stojkovic
Fermionic Zero Modes on Domain Walls
6 pages, 3 figures, matches version published in PRD
Phys.Rev. D63 (2001) 025010
10.1103/PhysRevD.63.025010
null
hep-ph hep-th
null
We study fermionic zero modes in the domain wall background. The fermions have Dirac and left- and right-handed Majorana mass terms. The source of the Dirac mass term is the coupling to a scalar field $\Phi$. The source of the Majorana mass terms could also be the coupling to a scalar field $\Phi$ or a vacuum expecta...
[ { "created": "Fri, 28 Jul 2000 20:16:17 GMT", "version": "v1" }, { "created": "Tue, 30 Jan 2001 22:48:34 GMT", "version": "v2" } ]
2009-10-31
[ [ "Stojkovic", "Dejan", "" ] ]
We study fermionic zero modes in the domain wall background. The fermions have Dirac and left- and right-handed Majorana mass terms. The source of the Dirac mass term is the coupling to a scalar field $\Phi$. The source of the Majorana mass terms could also be the coupling to a scalar field $\Phi$ or a vacuum expectati...
1501.03443
Yacine Mehtar-Tani
Jean-Paul Blaizot, Yacine Mehtar-Tani
Energy flow along the medium-induced parton cascade
46 pages, 9 figures
null
10.1016/j.aop.2016.01.002
INT-PUB-15-002
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the dynamics of parton cascades that develop in dense QCD matter, and contrast their properties with those of similar cascades of gluon radiation in vacuum. We argue that such cascades belong to two distinct classes that are characterized respectively by an increasing or a constant (or decreasing) branchin...
[ { "created": "Wed, 14 Jan 2015 18:56:49 GMT", "version": "v1" } ]
2016-04-20
[ [ "Blaizot", "Jean-Paul", "" ], [ "Mehtar-Tani", "Yacine", "" ] ]
We discuss the dynamics of parton cascades that develop in dense QCD matter, and contrast their properties with those of similar cascades of gluon radiation in vacuum. We argue that such cascades belong to two distinct classes that are characterized respectively by an increasing or a constant (or decreasing) branching ...
1910.04781
Chia-Feng Chang
Chia-Feng Chang and Yanou Cui
Stochastic Gravitational Wave Background from Global Cosmic Strings
Journal version, 9 pages, 6 figures
Phys.Dark Univ. 29 (2020) 100604
10.1016/j.dark.2020.100604
null
hep-ph astro-ph.CO gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Global cosmic strings are generically predicted in particle physics beyond the Standard Model, e.g., a post-inflationary global $U(1)$ symmetry breaking which may associate with axion-like dark matter. We demonstrate that although subdominant to Goldstone emission, gravitational waves (GWs) radiated from global strin...
[ { "created": "Thu, 10 Oct 2019 18:00:32 GMT", "version": "v1" }, { "created": "Thu, 10 Sep 2020 16:58:52 GMT", "version": "v2" } ]
2020-09-11
[ [ "Chang", "Chia-Feng", "" ], [ "Cui", "Yanou", "" ] ]
Global cosmic strings are generically predicted in particle physics beyond the Standard Model, e.g., a post-inflationary global $U(1)$ symmetry breaking which may associate with axion-like dark matter. We demonstrate that although subdominant to Goldstone emission, gravitational waves (GWs) radiated from global strings...
1909.10146
Harleen Dahiya Dr.
Navdeep Kaur and Harleen Dahiya
Quark Wigner Distributions and GTMDs of Pion in the Light-Front Holographic Model
20 pages and 6 figures
null
10.1140/epja/s10050-020-00179-9
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the quark Wigner distributions of the pion to reveal the multidimensional picture of pion. We have used the spin improved wave functions of pion deduced from the light-front holographic model of mesons. By using the Fock-state overlap representation, the Wigner distributions of an unpolarized, longitud...
[ { "created": "Mon, 23 Sep 2019 03:54:09 GMT", "version": "v1" } ]
2020-07-15
[ [ "Kaur", "Navdeep", "" ], [ "Dahiya", "Harleen", "" ] ]
We investigate the quark Wigner distributions of the pion to reveal the multidimensional picture of pion. We have used the spin improved wave functions of pion deduced from the light-front holographic model of mesons. By using the Fock-state overlap representation, the Wigner distributions of an unpolarized, longitudin...
hep-ph/9611358
Paolo Gambino
Paolo Gambino (MPI Munich)
Precision tests of the SM and higher order effects: the example of the effective mixing angle
12 pages, Latex, 6 Pstscript figs included with psfig.sty. Lecture given at the XXXVI Cracow School of Theor. Physics (Zakopane, Poland, June '96). To appear in the proceedings, Acta Phys. Polonica
Acta Phys.Polon.B27:3671-3683,1996
null
MPI-PhT/96-77
hep-ph
null
The radiative corrections involved in the precise determination of the electroweak mixing angle measured at the Z-peak are reviewed in detail, with particular emphasis on the new calculation of two-loop heavy top effects. This example serves as a brief pedagogical introduction to the problems and techniques of higher...
[ { "created": "Tue, 19 Nov 1996 10:27:24 GMT", "version": "v1" } ]
2011-03-02
[ [ "Gambino", "Paolo", "", "MPI Munich" ] ]
The radiative corrections involved in the precise determination of the electroweak mixing angle measured at the Z-peak are reviewed in detail, with particular emphasis on the new calculation of two-loop heavy top effects. This example serves as a brief pedagogical introduction to the problems and techniques of higher o...
0804.0456
Christian Weiss
M. Strikman, C. Weiss
Exclusive electroproduction of strange mesons with JLab 12 GeV
9 pages, 4 figures. Prepared for the CLAS 12 RICH Detector Workshop, January 28-29, 2008, Jefferson Lab, Newport News, VA, USA; http://conferences.jlab.org/clas12/
null
null
JLAB-THY-08-810
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We summarize the physics topics which can be addressed by measurements of high-Q^2 exclusive electroproduction of strange mesons, gamma* N -> phi N, K* Lambda, K Lambda, K Sigma, at Jefferson Lab with 11 GeV beam energy. The proposed investigations are aimed both at exploring the reaction mechanism (dominance of poin...
[ { "created": "Thu, 3 Apr 2008 00:54:43 GMT", "version": "v1" } ]
2008-04-04
[ [ "Strikman", "M.", "" ], [ "Weiss", "C.", "" ] ]
We summarize the physics topics which can be addressed by measurements of high-Q^2 exclusive electroproduction of strange mesons, gamma* N -> phi N, K* Lambda, K Lambda, K Sigma, at Jefferson Lab with 11 GeV beam energy. The proposed investigations are aimed both at exploring the reaction mechanism (dominance of point-...