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1408.5005
Shu Luo
Shu Luo and Zhi-zhong Xing
Resolving the octant of theta_{23} via radiative mu-tau symmetry breaking
12 pages, 3 tables, 2 figures, minor changes, references updated, accepted for publication in Phys. Rev. D
null
10.1103/PhysRevD.90.073005
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We point out that the observed neutrino mixing pattern at low energies is very likely to originate from the 3 times 3 lepton flavor mixing matrix U which possesses the exact mu-tau permutation symmetry |U_{mu i}| = |U_{tau i}| (for i=1,2,3) at a superhigh energy scale Lambda_{mu tau} \sim 10^{14} GeV. The deviation o...
[ { "created": "Thu, 21 Aug 2014 13:53:32 GMT", "version": "v1" }, { "created": "Wed, 1 Oct 2014 19:21:23 GMT", "version": "v2" } ]
2015-06-22
[ [ "Luo", "Shu", "" ], [ "Xing", "Zhi-zhong", "" ] ]
We point out that the observed neutrino mixing pattern at low energies is very likely to originate from the 3 times 3 lepton flavor mixing matrix U which possesses the exact mu-tau permutation symmetry |U_{mu i}| = |U_{tau i}| (for i=1,2,3) at a superhigh energy scale Lambda_{mu tau} \sim 10^{14} GeV. The deviation of ...
1510.00714
Andrew Williams
Andrew J. Williams
Explaining the Fermi Galactic Centre Excess in the CMSSM
16 pages, 3 figures
null
null
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present an analysis of the compatibility between the Galactic Centre Excess (GCE) and the Constrained MSSM (CMSSM). We perform a global fit to the relevant experimental data including the GCE taking into account the systematic uncertainties. We find that the CMSSM is able to account for the GCE and maintain agreem...
[ { "created": "Fri, 2 Oct 2015 20:04:36 GMT", "version": "v1" } ]
2015-10-06
[ [ "Williams", "Andrew J.", "" ] ]
We present an analysis of the compatibility between the Galactic Centre Excess (GCE) and the Constrained MSSM (CMSSM). We perform a global fit to the relevant experimental data including the GCE taking into account the systematic uncertainties. We find that the CMSSM is able to account for the GCE and maintain agreemen...
hep-ph/0106119
Shinta Kasuya
S. Kasuya and M. Kawasaki
Q-ball formation: Obstacle to Affleck-Dine baryogenesis in the gauge-mediated SUSY breaking ?
27 pages, RevTeX, 21 postscript figures included. The version to be published
Phys.Rev. D64 (2001) 123515
10.1103/PhysRevD.64.123515
null
hep-ph
null
We consider the Affleck-Dine baryogenesis comprehensively in the minimal supersymmetric standard model with gauge-mediated supersymmetry breaking. Considering the high temperature effects, we see that the Affleck-Dine field is naturally deformed into the form of the Q ball. In the natural scenario where the initial a...
[ { "created": "Tue, 12 Jun 2001 11:16:46 GMT", "version": "v1" }, { "created": "Thu, 11 Oct 2001 06:47:05 GMT", "version": "v2" } ]
2009-11-07
[ [ "Kasuya", "S.", "" ], [ "Kawasaki", "M.", "" ] ]
We consider the Affleck-Dine baryogenesis comprehensively in the minimal supersymmetric standard model with gauge-mediated supersymmetry breaking. Considering the high temperature effects, we see that the Affleck-Dine field is naturally deformed into the form of the Q ball. In the natural scenario where the initial amp...
1702.02944
Doojin Kim
Doojin Kim, Jong-Chul Park, Seodong Shin
Dark Matter "Transporting" Mechanism Explaining Positron Excesses
14 pages, 3 figures
null
10.1007/JHEP04(2018)093
CERN-TH-2017-036
hep-ph astro-ph.HE hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a novel mechanism to explain the positron excesses, which are observed by satellite-based telescopes including PAMELA and AMS-02, in dark matter (DM) scenarios. The novelty behind the proposal is that it makes direct use of DM around the Galactic Center where DM populates most densely, allowing us to avoid...
[ { "created": "Thu, 9 Feb 2017 19:00:00 GMT", "version": "v1" }, { "created": "Fri, 20 Apr 2018 19:08:44 GMT", "version": "v2" } ]
2018-05-09
[ [ "Kim", "Doojin", "" ], [ "Park", "Jong-Chul", "" ], [ "Shin", "Seodong", "" ] ]
We propose a novel mechanism to explain the positron excesses, which are observed by satellite-based telescopes including PAMELA and AMS-02, in dark matter (DM) scenarios. The novelty behind the proposal is that it makes direct use of DM around the Galactic Center where DM populates most densely, allowing us to avoid t...
hep-ph/0004232
Ed Stoeffhaas
M. M. Block, F. Halzen, T. Stanev
Extending the Frontiers - Reconciling Accelerator and Cosmic Ray p-p Cross Sections
6 pages, Latex, uses epsfig.sty, 5 postscript figures
Phys.Rev.D62:077501,2000
10.1103/PhysRevD.62.077501
NUHEP 706, MADPH-00-1172
hep-ph
null
We simultaneously fit a QCD-inspired parameterization of all accelerator data on forward proton-proton and antiproton-proton scattering amplitudes, together with cosmic ray data (using Glauber theory), to predict proton-air and proton-proton cross sections at energies near \sqrt s \approx 30 TeV. The p-air cosmic ray...
[ { "created": "Tue, 25 Apr 2000 20:53:55 GMT", "version": "v1" } ]
2011-05-12
[ [ "Block", "M. M.", "" ], [ "Halzen", "F.", "" ], [ "Stanev", "T.", "" ] ]
We simultaneously fit a QCD-inspired parameterization of all accelerator data on forward proton-proton and antiproton-proton scattering amplitudes, together with cosmic ray data (using Glauber theory), to predict proton-air and proton-proton cross sections at energies near \sqrt s \approx 30 TeV. The p-air cosmic ray m...
hep-ph/9505229
Department of Theoretical Physics
A.A.Gvozdev, A.V.Kuznetsov, N.V.Mikheev and L.A.Vassilevskaya
THREE TYPES OF FERMION MIXING AND POSSIBLE MANIFESTATIONS OF A PATI--SALAM LEPTOQUARK IN THE LOW--ENERGY PROCESSES
9 pages, LaTeX, Talk given by A.V.Kuznetsov at the XXXth Rencontres de Moriond, Electroweak Interactions and Unified Theories, Les Arcs, Savoie, France, March 11-18, 1995
null
null
YARU-HE-95/02 (Yaroslavl State University)
hep-ph
null
I report the recent studies\cite{1,2} on the low--energy manifestations of a minimal extension of the Standard Model based on the quark-lepton symmetry $SU(4)_V \otimes SU(2)_L \otimes G_R$ of the Pati-Salam type. Given this symmetry the third type of mixing in the interactions ot the $SU(4)_V$ leptoquarks with quark...
[ { "created": "Thu, 4 May 1995 08:41:05 GMT", "version": "v1" } ]
2007-05-23
[ [ "Gvozdev", "A. A.", "" ], [ "Kuznetsov", "A. V.", "" ], [ "Mikheev", "N. V.", "" ], [ "Vassilevskaya", "L. A.", "" ] ]
I report the recent studies\cite{1,2} on the low--energy manifestations of a minimal extension of the Standard Model based on the quark-lepton symmetry $SU(4)_V \otimes SU(2)_L \otimes G_R$ of the Pati-Salam type. Given this symmetry the third type of mixing in the interactions ot the $SU(4)_V$ leptoquarks with quarks ...
hep-ph/9804257
null
Samim Erhan and Peter E. Schlein
Evidence for xi- and t-dependent damping of the Pomeron Flux in the proton
19 pages, 7 Encapsulated Postscript figures, LaTex, Phys. Lett. B (in press - 1998)
Phys.Lett. B427 (1998) 389-397
10.1016/S0370-2693(98)00405-5
null
hep-ph
null
We show that a triple-Regge parametrization of inclusive single diffraction agrees with the data in the following two domains: (a) xi > 0.03 at all t, (b) |t| > 1 GeV^2 at all xi. Since the triple-Regge parametrization fails when applied to the full xi-t range of the total single-diffractive cross section, we conclud...
[ { "created": "Wed, 8 Apr 1998 13:02:26 GMT", "version": "v1" } ]
2009-10-31
[ [ "Erhan", "Samim", "" ], [ "Schlein", "Peter E.", "" ] ]
We show that a triple-Regge parametrization of inclusive single diffraction agrees with the data in the following two domains: (a) xi > 0.03 at all t, (b) |t| > 1 GeV^2 at all xi. Since the triple-Regge parametrization fails when applied to the full xi-t range of the total single-diffractive cross section, we conclude ...
hep-ph/0011176
Raj Gandhi
Raj Gandhi
Ultra-High Energy Neutrinos: A Review of Theoretical and Phenomenological Issues
Invited Talk at Neutrino 2000, XIX International Conference on Neutrino Physics and Astrophysics, Sudbury, Canada, June 16-21, 2000. 12 pages. References updated; minor changes to text
Nucl.Phys.Proc.Suppl. 91 (2000) 453-461
10.1016/S0920-5632(00)00975-0
null
hep-ph astro-ph hep-ex
null
We review the phenomenology of ultra-high energy (UHE) neutrino detection. The motivations for looking for such neutrinos stemming from observational evidence and the potential for new physics discoveries are enumerated, and their expected sources and fluxes are given. Cross-sections with nucleons all the way upto ne...
[ { "created": "Tue, 14 Nov 2000 10:27:22 GMT", "version": "v1" }, { "created": "Wed, 6 Dec 2000 05:07:53 GMT", "version": "v2" }, { "created": "Sat, 3 Feb 2001 06:01:18 GMT", "version": "v3" } ]
2009-10-31
[ [ "Gandhi", "Raj", "" ] ]
We review the phenomenology of ultra-high energy (UHE) neutrino detection. The motivations for looking for such neutrinos stemming from observational evidence and the potential for new physics discoveries are enumerated, and their expected sources and fluxes are given. Cross-sections with nucleons all the way upto neut...
2005.13136
Carline Biesdorf
Luiz L. Lopes, Carline Biesdorf, D\'ebora P. Menezes
Modified MIT bag Models -- part I: Thermodynamic consistency, stability windows and symmetry group
14 pages, 10 figures
Phys. Scr. 96 065303 (2021)
10.1088/1402-4896/abef34
null
hep-ph astro-ph.HE nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work we study different variations of the MIT bag model. We start with the so called non-ideal bag model and discuss it in detail. Then we implement a vector interaction in the MIT bag model that simulates a meson exchange interaction and fix the quark-meson coupling constants via symmetry group theory. At th...
[ { "created": "Wed, 27 May 2020 02:48:34 GMT", "version": "v1" }, { "created": "Thu, 28 May 2020 18:15:14 GMT", "version": "v2" }, { "created": "Mon, 29 Mar 2021 15:00:18 GMT", "version": "v3" } ]
2021-03-30
[ [ "Lopes", "Luiz L.", "" ], [ "Biesdorf", "Carline", "" ], [ "Menezes", "Débora P.", "" ] ]
In this work we study different variations of the MIT bag model. We start with the so called non-ideal bag model and discuss it in detail. Then we implement a vector interaction in the MIT bag model that simulates a meson exchange interaction and fix the quark-meson coupling constants via symmetry group theory. At the ...
1008.3155
Cen Zhang
Cen Zhang and Scott Willenbrock
Effective Field Theory for Top Quark Physics
7 pages, 5 figures. To appear in the Proceedings of the International Workshop on Top Quark Physics (top2010), Bruges, Belgium, May 31 - June 4, 2010
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Physics beyond the standard model can affect top-quark physics indirectly. We describe the effective field theory approach to describing such physics, and contrast it with the vertex-function approach that has been pursued previously. We argue that the effective field theory approach has many fundamental advantages a...
[ { "created": "Wed, 18 Aug 2010 19:45:24 GMT", "version": "v1" } ]
2010-08-19
[ [ "Zhang", "Cen", "" ], [ "Willenbrock", "Scott", "" ] ]
Physics beyond the standard model can affect top-quark physics indirectly. We describe the effective field theory approach to describing such physics, and contrast it with the vertex-function approach that has been pursued previously. We argue that the effective field theory approach has many fundamental advantages and...
2212.11674
Takaaki Nomura
Arindam Das, Takaaki Nomura, Takashi Shimomura
Multi muon/anti-muon signals via productions of gauge and scalar bosons in a $U(1)_{L_\mu-L_\tau}$ model at muonic colliders
16 pages, 6 figures, minor corrections are made
null
null
UME-PP-024, KYUSHU-HET-252
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
We discuss the discovery potential of a promising signals, $3 \times \mu^+ \mu^-$ at a $\mu^+ \mu^-$ collider and $\mu^+ \mu^+ \mu^+ \mu^+ \mu^- \mu^- $ at a $\mu^+ \mu^+$ collider, that are obtained via production of $Z'$ and a new scalar boson $\phi$ in a spontaneously broken local $U(1)_{L_\mu - L_\tau}$ model. We...
[ { "created": "Thu, 22 Dec 2022 13:11:24 GMT", "version": "v1" }, { "created": "Wed, 4 Jan 2023 07:39:21 GMT", "version": "v2" } ]
2023-01-05
[ [ "Das", "Arindam", "" ], [ "Nomura", "Takaaki", "" ], [ "Shimomura", "Takashi", "" ] ]
We discuss the discovery potential of a promising signals, $3 \times \mu^+ \mu^-$ at a $\mu^+ \mu^-$ collider and $\mu^+ \mu^+ \mu^+ \mu^+ \mu^- \mu^- $ at a $\mu^+ \mu^+$ collider, that are obtained via production of $Z'$ and a new scalar boson $\phi$ in a spontaneously broken local $U(1)_{L_\mu - L_\tau}$ model. We c...
hep-ph/0311049
Andrei Leonidov
Andrei Leonidov
Dense Gluon Matter in Nuclear Collisions
null
Phys.Usp.48:323-344,2005
10.1070/PU2005v048n04ABEH001890
FIAN/TD-16/03
hep-ph
null
Theoretical and phenomenological aspects of high energy heavy ion collisions are reviewed. Main emphasis is on ideas related to Color Glass Condensate (CGC) physics.
[ { "created": "Tue, 4 Nov 2003 15:07:37 GMT", "version": "v1" } ]
2010-11-30
[ [ "Leonidov", "Andrei", "" ] ]
Theoretical and phenomenological aspects of high energy heavy ion collisions are reviewed. Main emphasis is on ideas related to Color Glass Condensate (CGC) physics.
1409.3648
Motohiko Yoshimura
M. Yoshimura, N. Sasao, and M. Tanaka
Experimental method of detecting relic neutrino by atomic de-excitation
7 pages, 4 figures
Phys. Rev. D 91, 063516 (2015)
10.1103/PhysRevD.91.063516
OU-HET 826
hep-ph astro-ph.CO hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The cosmic background neutrino of temperature 1.9 K affects rates of radiative emission of neutrino pair (RENP) from metastable excited atoms, since its presence blocks the pair emission by the Pauli exclusion principle. We quantitatively investigate how the Pauli blocking distorts the photon energy spectrum and calc...
[ { "created": "Fri, 12 Sep 2014 04:52:58 GMT", "version": "v1" } ]
2015-03-18
[ [ "Yoshimura", "M.", "" ], [ "Sasao", "N.", "" ], [ "Tanaka", "M.", "" ] ]
The cosmic background neutrino of temperature 1.9 K affects rates of radiative emission of neutrino pair (RENP) from metastable excited atoms, since its presence blocks the pair emission by the Pauli exclusion principle. We quantitatively investigate how the Pauli blocking distorts the photon energy spectrum and calcul...
hep-ph/9611273
null
R. N. Mohapatra and A. Riotto
Supersymmetric models with anomalous U(1) mediated supersymmetry breaking
18 pages latex; 3 figures
Phys.Rev. D55 (1997) 4262-4267
10.1103/PhysRevD.55.4262
Fermilab-Pub-96/410; UMD-PP-97-54
hep-ph
null
We construct realistic supergravity models where supersymmetry breaking arises from the D-terms of an anomalous U(1) gauge symmetry broken at the Planck scale. Effective action for these theories at sub-Planck energies (including higher dimensional terms in the superpotential) are severely restricted by the U(1) symm...
[ { "created": "Thu, 7 Nov 1996 20:50:13 GMT", "version": "v1" } ]
2016-09-06
[ [ "Mohapatra", "R. N.", "" ], [ "Riotto", "A.", "" ] ]
We construct realistic supergravity models where supersymmetry breaking arises from the D-terms of an anomalous U(1) gauge symmetry broken at the Planck scale. Effective action for these theories at sub-Planck energies (including higher dimensional terms in the superpotential) are severely restricted by the U(1) symmet...
hep-ph/9612358
Masayasu Harada
Masayasu Harada (Syracuse U.), Akihiro Shibata (KEK,Japan)
The Pion Decay Constants and the Rho-Meson Mass at Finite Temperature in the Hidden Local Symmetry
We added a comment on the correction to the rho-meson mass from the omega-pi loop. This is the final version to be published in Phys. Rev. D. 19 pages (LaTeX-RevTeX), 7 PostScript figures
Phys.Rev.D55:6716-6724,1997
10.1103/PhysRevD.55.6716
SU-4240-652 & KEK preprint 96-150
hep-ph nucl-th
null
We study the temperature dependence of the pion decay constant and rho-meson mass in the hidden local symmetry model at one loop. Using the standard imaginary time formalism, we include the thermal effect of rho meson as well as that of pion. We show that the pion gives a dominant contribution to the pion decay const...
[ { "created": "Fri, 13 Dec 1996 20:04:06 GMT", "version": "v1" }, { "created": "Tue, 18 Mar 1997 00:39:32 GMT", "version": "v2" } ]
2009-12-30
[ [ "Harada", "Masayasu", "", "Syracuse U." ], [ "Shibata", "Akihiro", "", "KEK,Japan" ] ]
We study the temperature dependence of the pion decay constant and rho-meson mass in the hidden local symmetry model at one loop. Using the standard imaginary time formalism, we include the thermal effect of rho meson as well as that of pion. We show that the pion gives a dominant contribution to the pion decay constan...
2008.09383
Yannick Ulrich
Yannick Ulrich
McMule -- QED Corrections for Low-Energy Experiments
PhD thesis, 155 pages, many figures, partially based on arXiv:2007.01654, arXiv:1909.10244, and arXiv:1811.06461
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We present McMule, a unified framework for the calculation of NLO and NNLO corrections to many processes in QED with massive fermions. This easily extendable program allows users to calculate an arbitrary observable for any of the processes implemented. These include various lepton decays as well as certain low-energ...
[ { "created": "Fri, 21 Aug 2020 09:23:02 GMT", "version": "v1" } ]
2020-08-24
[ [ "Ulrich", "Yannick", "" ] ]
We present McMule, a unified framework for the calculation of NLO and NNLO corrections to many processes in QED with massive fermions. This easily extendable program allows users to calculate an arbitrary observable for any of the processes implemented. These include various lepton decays as well as certain low-energy ...
1602.03627
Shasanka Mohan Roy
S. M. Roy (HBCSE, Tata Institute of Fundamental Research, Mumbai)
Pomeron pole plus grey disk model: real parts, inelastic cross sections and LHC data
6 pages, 5 figures, 2 tables
null
10.1016/j.physletb.2016.11.025
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
I propose a two component analytic formula $F(s,t)=F^{(1)}(s,t)+F^{(2)}(s,t)$ for $(ab\rightarrow ab) +(a\bar{b}\rightarrow a\bar{b})$ scattering at energies $\ge 100 GeV$ ,where $s,t$ denote squares of c.m. energy and momentum transfer.It saturates the Froissart-Martin bound and obeys Auberson-Kinoshita-Martin (AKM)...
[ { "created": "Thu, 11 Feb 2016 07:02:21 GMT", "version": "v1" }, { "created": "Tue, 16 Feb 2016 07:21:49 GMT", "version": "v2" }, { "created": "Wed, 1 Jun 2016 12:54:12 GMT", "version": "v3" }, { "created": "Sat, 18 Jun 2016 16:55:53 GMT", "version": "v4" }, { "cr...
2017-01-04
[ [ "Roy", "S. M.", "", "HBCSE, Tata Institute of Fundamental Research, Mumbai" ] ]
I propose a two component analytic formula $F(s,t)=F^{(1)}(s,t)+F^{(2)}(s,t)$ for $(ab\rightarrow ab) +(a\bar{b}\rightarrow a\bar{b})$ scattering at energies $\ge 100 GeV$ ,where $s,t$ denote squares of c.m. energy and momentum transfer.It saturates the Froissart-Martin bound and obeys Auberson-Kinoshita-Martin (AKM) \...
2312.13740
K{\aa}re Fridell
K\r{a}re Fridell, Chandan Hati, and Volodymyr Takhistov
Non-Canonical Nucleon Decays as Window into Light New Physics
8 pages, 2 figures, version accepted for publication
null
null
KEK-TH-2588, KEK-Cosmo-0336, KEK-QUP-2023-0038, IPMU23-0051, IFIC/23-54, ULB-TH/23-18
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Nucleon decays are generic predictions of motivated theories, including those based on the unification of forces and supersymmetry. We demonstrate that non-canonical nucleon decays offer a unique opportunity to broadly probe light new particles beyond the Standard Model with masses below $\sim$few GeV over decades in...
[ { "created": "Thu, 21 Dec 2023 11:18:51 GMT", "version": "v1" }, { "created": "Wed, 10 Jul 2024 02:38:03 GMT", "version": "v2" } ]
2024-07-11
[ [ "Fridell", "Kåre", "" ], [ "Hati", "Chandan", "" ], [ "Takhistov", "Volodymyr", "" ] ]
Nucleon decays are generic predictions of motivated theories, including those based on the unification of forces and supersymmetry. We demonstrate that non-canonical nucleon decays offer a unique opportunity to broadly probe light new particles beyond the Standard Model with masses below $\sim$few GeV over decades in m...
hep-ph/0002042
Tao Han
V. Barger, T. Han and C.-G. Zhou
Higgs Boson Decays to tau-pairs in the s-channel at a Muon Collider
to appear in PLB
Phys.Lett.B480:140-148,2000
10.1016/S0370-2693(00)00372-5
MADPH-00-1154
hep-ph
null
We study the observability of the $\tautau$ decay mode of a Higgs boson produced in the $s$-channel at a muon collider. We find that the spin correlations of the $\tautau$ in $\tau\to \pi\nu_{\tau}, \rho\nu_{\tau}$ decays are discriminative between the Higgs boson signal and the Standard Model background. Observation...
[ { "created": "Thu, 3 Feb 2000 17:51:17 GMT", "version": "v1" }, { "created": "Fri, 24 Mar 2000 17:40:48 GMT", "version": "v2" } ]
2009-09-15
[ [ "Barger", "V.", "" ], [ "Han", "T.", "" ], [ "Zhou", "C. -G.", "" ] ]
We study the observability of the $\tautau$ decay mode of a Higgs boson produced in the $s$-channel at a muon collider. We find that the spin correlations of the $\tautau$ in $\tau\to \pi\nu_{\tau}, \rho\nu_{\tau}$ decays are discriminative between the Higgs boson signal and the Standard Model background. Observation o...
2005.08920
Danny Marfatia
Alakabha Datta, Saeed Kamali, Danny Marfatia
Dark sector origin of the KOTO and MiniBooNE anomalies
10 pages, 1 figure, 2 tables. Version to appear in PLB
Phys. Lett. B 807 : 135579 (2020)
10.1016/j.physletb.2020.135579
UMISS-HEP-2010-02
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a dark sector model that reproduces the KOTO, MiniBooNE and muon anomalous magnetic moment anomalies. The dark sector is comprised of a light scalar singlet $S$ that has a large coupling to a slightly heavier sterile neutrino that mixes with the active neutrinos. The scalar couples to standard model fermio...
[ { "created": "Mon, 18 May 2020 17:46:27 GMT", "version": "v1" }, { "created": "Mon, 22 Jun 2020 15:31:33 GMT", "version": "v2" } ]
2020-07-02
[ [ "Datta", "Alakabha", "" ], [ "Kamali", "Saeed", "" ], [ "Marfatia", "Danny", "" ] ]
We present a dark sector model that reproduces the KOTO, MiniBooNE and muon anomalous magnetic moment anomalies. The dark sector is comprised of a light scalar singlet $S$ that has a large coupling to a slightly heavier sterile neutrino that mixes with the active neutrinos. The scalar couples to standard model fermions...
hep-ph/0601142
Piyabut Burikham
Piyabut Burikham
TeV-Scale Stringy Signatures at the Electron-positron Collider
22 pages,8 figures, expanded content, added references
Phys.Rev. D73 (2006) 055006
10.1103/PhysRevD.73.055006
null
hep-ph
null
We investigate the TeV-scale stringy signals of the four-fermion scattering at the electron-positron collider with the center of mass energy 500-1000 GeV. The nature of the stringy couplings leads to distinguishable asymmetries comparing to the other new physics models. Specifically, the stringy states in the four-fe...
[ { "created": "Tue, 17 Jan 2006 23:33:49 GMT", "version": "v1" }, { "created": "Tue, 28 Feb 2006 00:38:44 GMT", "version": "v2" } ]
2009-11-11
[ [ "Burikham", "Piyabut", "" ] ]
We investigate the TeV-scale stringy signals of the four-fermion scattering at the electron-positron collider with the center of mass energy 500-1000 GeV. The nature of the stringy couplings leads to distinguishable asymmetries comparing to the other new physics models. Specifically, the stringy states in the four-ferm...
1002.4252
Daniel Mueller
Daniel M\"uller, Michael Buballa and Jochen Wambach
The Quark Propagator in the NJL Model in a self-consistent 1/Nc Expansion
14 pages, 19 figures
Phys.Rev.D81:094022,2010
10.1103/PhysRevD.81.094022
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The quark propagator is calculated in the Nambu-Jona-Lasinio (NJL) model in a self-consistent 1/Nc-expansion at next-to-leading order. The calculations are carried out iteratively in Euclidean space. The chiral quark condensate and its dependence on temperature and chemical potential is calculated directly and compar...
[ { "created": "Tue, 23 Feb 2010 14:16:23 GMT", "version": "v1" }, { "created": "Tue, 4 May 2010 11:37:57 GMT", "version": "v2" } ]
2010-05-24
[ [ "Müller", "Daniel", "" ], [ "Buballa", "Michael", "" ], [ "Wambach", "Jochen", "" ] ]
The quark propagator is calculated in the Nambu-Jona-Lasinio (NJL) model in a self-consistent 1/Nc-expansion at next-to-leading order. The calculations are carried out iteratively in Euclidean space. The chiral quark condensate and its dependence on temperature and chemical potential is calculated directly and compared...
1203.4821
Adam Martin
Graham D. Kribs, Adam Martin
Supersoft Supersymmetry is Super-Safe
13 pages, 8 figures
null
10.1103/PhysRevD.85.115014
FERMILAB-PUB-12-074-T
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show that supersymmetric models with a large Dirac gluino mass can evade much of the jets plus missing energy searches at LHC. Dirac gaugino masses arise from "supersoft" operators that lead to finite one-loop suppressed contributions to the scalar masses. A little hierarchy between the Dirac gluino mass 5 - 10 ti...
[ { "created": "Wed, 21 Mar 2012 20:02:11 GMT", "version": "v1" } ]
2013-05-30
[ [ "Kribs", "Graham D.", "" ], [ "Martin", "Adam", "" ] ]
We show that supersymmetric models with a large Dirac gluino mass can evade much of the jets plus missing energy searches at LHC. Dirac gaugino masses arise from "supersoft" operators that lead to finite one-loop suppressed contributions to the scalar masses. A little hierarchy between the Dirac gluino mass 5 - 10 time...
hep-ph/0608340
Felipe J. Llanes-Estrada
Felipe J. Llanes-Estrada, Tim Van Cauteren and Angel Paramo Martin (Complutense)
Fermion family recurrences in the Dyson-Schwinger formalism
null
Eur.Phys.J.C51:945-952,2007
10.1140/epjc/s10052-007-0349-9
null
hep-ph
null
We study the multiple solutions of the truncated propagator Dyson-Schwinger equation for a simple fermion theory with Yukawa coupling to a scalar field. Upon increasing the coupling constant $g$, other parameters being fixed, more than one non-perturbative solution breaking chiral symmetry becomes possible and we fin...
[ { "created": "Thu, 31 Aug 2006 13:31:17 GMT", "version": "v1" }, { "created": "Wed, 9 May 2007 10:51:50 GMT", "version": "v2" } ]
2008-11-26
[ [ "Llanes-Estrada", "Felipe J.", "", "Complutense" ], [ "Van Cauteren", "Tim", "", "Complutense" ], [ "Martin", "Angel Paramo", "", "Complutense" ] ]
We study the multiple solutions of the truncated propagator Dyson-Schwinger equation for a simple fermion theory with Yukawa coupling to a scalar field. Upon increasing the coupling constant $g$, other parameters being fixed, more than one non-perturbative solution breaking chiral symmetry becomes possible and we find ...
1109.2444
Antonio Vairo
Antonio Vairo
Effective Field Theories for Quarkonium and Dipole Transitions
13 pages, 12 figures. Plenary talk at XIV International Conference on Hadron Spectroscopy (hadron2011), 13-17 June 2011, Munich, Germany
null
null
TUM-EFT 23/11
hep-ph hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Effective field theories for quarkonium at zero and finite temperature provide an unifying description for a wide class of phenomena. As an example, we discuss physical effects induced by dipole transitions.
[ { "created": "Mon, 12 Sep 2011 12:38:23 GMT", "version": "v1" } ]
2011-09-13
[ [ "Vairo", "Antonio", "" ] ]
Effective field theories for quarkonium at zero and finite temperature provide an unifying description for a wide class of phenomena. As an example, we discuss physical effects induced by dipole transitions.
0903.0396
Michael Mitrovski
Hannah Petersen, Michael Mitrovski, Tim Schuster, and Marcus Bleicher
Centrality and system size dependence of (multi-strange) hyperons at 40$A$ and 158$A$ GeV: A comparison between a binary collision and a Boltzmann + hydrodynamic hybrid model
8 pages, 8 figures
Phys.Rev.C80,054910,2009
10.1103/PhysRevC.80.054910
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present results on the centrality and system size dependence of (multi-strange)hyperons in Pb+Pb collisions at 40$A$ and 158$A$ GeV from the Ultra-relativistic Quantum Molecular Dynamics (UrQMD-v2.3) model and a coupled Boltzmann+hydrodynamics calculation. The second approach is realized in a hybrid fashion based ...
[ { "created": "Mon, 2 Mar 2009 22:08:15 GMT", "version": "v1" }, { "created": "Wed, 18 Nov 2009 10:13:30 GMT", "version": "v2" } ]
2013-05-29
[ [ "Petersen", "Hannah", "" ], [ "Mitrovski", "Michael", "" ], [ "Schuster", "Tim", "" ], [ "Bleicher", "Marcus", "" ] ]
We present results on the centrality and system size dependence of (multi-strange)hyperons in Pb+Pb collisions at 40$A$ and 158$A$ GeV from the Ultra-relativistic Quantum Molecular Dynamics (UrQMD-v2.3) model and a coupled Boltzmann+hydrodynamics calculation. The second approach is realized in a hybrid fashion based on...
1405.2324
Narayan Rana
Taushif Ahmed, Maguni Mahakhud, Prakash Mathews, Narayan Rana and V. Ravindran
Two-Loop QCD Corrections to Higgs $\rightarrow b + \bar{b} + g$ Amplitude
Published version; 25 pages, 2 figures; v2: analytically continued result added, typos are corrected
JHEP 1408 (2014) 075
10.1007/JHEP08(2014)075
HRI-RECAPP-2014-010
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Exclusive observables involving Higgs boson in association with jets are often well suited to study the Higgs boson properties. They are rates involving cuts on the final state jets or differential distributions of rapidity, transverse momentum of the observed Higgs boson. While they get dominant contributions from g...
[ { "created": "Fri, 9 May 2014 19:24:49 GMT", "version": "v1" }, { "created": "Tue, 19 Aug 2014 19:23:44 GMT", "version": "v2" } ]
2014-08-20
[ [ "Ahmed", "Taushif", "" ], [ "Mahakhud", "Maguni", "" ], [ "Mathews", "Prakash", "" ], [ "Rana", "Narayan", "" ], [ "Ravindran", "V.", "" ] ]
Exclusive observables involving Higgs boson in association with jets are often well suited to study the Higgs boson properties. They are rates involving cuts on the final state jets or differential distributions of rapidity, transverse momentum of the observed Higgs boson. While they get dominant contributions from glu...
2307.03640
Gl\`oria Monta\~na Faiget
Gloria Montana, Angels Ramos, Laura Tolos and Juan M. Torres-Rincon
Recent progress on in-medium properties of heavy mesons from finite-temperature EFTs
16 pages, 8 figures, Submitted to Front.Phys.-Nuclear Physics to contribute to the Research Topic: Excotic Aspects of Hadrons and Nuclei
null
null
JLAB-THY-23-3874
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Mesons with heavy flavor content are an exceptional probe of the hot QCD medium produced in heavy-ion collisions. In the past few years, significant progress has been made toward describing the modification of the properties of heavy mesons in the hadronic phase at finite temperature. Ground-state and excited-state t...
[ { "created": "Fri, 7 Jul 2023 15:01:59 GMT", "version": "v1" } ]
2023-07-10
[ [ "Montana", "Gloria", "" ], [ "Ramos", "Angels", "" ], [ "Tolos", "Laura", "" ], [ "Torres-Rincon", "Juan M.", "" ] ]
Mesons with heavy flavor content are an exceptional probe of the hot QCD medium produced in heavy-ion collisions. In the past few years, significant progress has been made toward describing the modification of the properties of heavy mesons in the hadronic phase at finite temperature. Ground-state and excited-state the...
hep-ph/9506354
null
K. S. Babu and R. N. Mohapatra
New vector-scalar contributions to neutrinoless double beta decay and constraints on R-parity violation
Latex file; 9 pages; 3 figures available on request
Phys.Rev.Lett.75:2276-2279,1995
10.1103/PhysRevLett.75.2276
null
hep-ph
null
We show that in minimal supersymmetric standard model (MSSM) with R-parity breaking as well as in the left-right symmetric model, there are new observable contributions to neutrinoless double beta decay arising from hitherto overlooked diagrams involving the exchange of one W boson and one scalar boson. In particular...
[ { "created": "Sun, 18 Jun 1995 00:13:34 GMT", "version": "v1" } ]
2011-05-12
[ [ "Babu", "K. S.", "" ], [ "Mohapatra", "R. N.", "" ] ]
We show that in minimal supersymmetric standard model (MSSM) with R-parity breaking as well as in the left-right symmetric model, there are new observable contributions to neutrinoless double beta decay arising from hitherto overlooked diagrams involving the exchange of one W boson and one scalar boson. In particular, ...
hep-ph/9609270
Lu Gong Ru
Zhenjun Xiao, Shunmin Liu, Xuelei Wang, Lingde Wan and Gongru Lu
Precision Data and Implications on the Parameters of TC theory
10 pages, Latex, no macros, no figures, hard copy is available upon request. to appear in Commun.Theor.Phys
Commun.Theor.Phys. 29 (1998) 431-436
null
HNU-TH-96/5
hep-ph
null
Assuming that the actual values of $m_t$ and the data set ($\Gamma_b$, $\Gamma_h$, $\Gamma_Z$, $R_b$, $R_c$, $R_l$) are within their $1-\sigma$ errors as reported by CDF, D0 and by LEP Collaborations, the parameter $\Delta^{new}_b$ which measures the nonoblique corrections on the $Zb\overline{b}$ vertex from new phys...
[ { "created": "Fri, 6 Sep 1996 16:05:44 GMT", "version": "v1" } ]
2007-05-23
[ [ "Xiao", "Zhenjun", "" ], [ "Liu", "Shunmin", "" ], [ "Wang", "Xuelei", "" ], [ "Wan", "Lingde", "" ], [ "Lu", "Gongru", "" ] ]
Assuming that the actual values of $m_t$ and the data set ($\Gamma_b$, $\Gamma_h$, $\Gamma_Z$, $R_b$, $R_c$, $R_l$) are within their $1-\sigma$ errors as reported by CDF, D0 and by LEP Collaborations, the parameter $\Delta^{new}_b$ which measures the nonoblique corrections on the $Zb\overline{b}$ vertex from new physic...
1611.07844
Agnes Roberts
\'Agnes Roberts
New Searches for CPT Violation in Neutral-Meson Oscillations
Presented at the Seventh Meeting on CPT and Lorentz Symmetry, Bloomington, Indiana, June 20-24, 2016
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Classic tests of CPT symmetry have been done in the neutral-meson system. These have been continued with new results in the framework of the Standard-Model Extension, where the coefficient for CPT violation is both boost and direction dependent. Recent contributions and new phenomenological improvements are discussed...
[ { "created": "Sun, 16 Oct 2016 16:32:02 GMT", "version": "v1" } ]
2016-11-24
[ [ "Roberts", "Ágnes", "" ] ]
Classic tests of CPT symmetry have been done in the neutral-meson system. These have been continued with new results in the framework of the Standard-Model Extension, where the coefficient for CPT violation is both boost and direction dependent. Recent contributions and new phenomenological improvements are discussed w...
1911.11254
Thomas Rueter
Thomas D. Rueter, Thomas G. Rizzo, JoAnne L. Hewett
Dark Matter Freeze Out with Tsallis Statistics in the Early Universe
19 pages, 9 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The nature of dark matter (DM) and how it might interact with the particles of the Standard Model (SM) is one of greatest mysteries currently facing particle physics, and addressing these issues should provide some understanding of how the observed relic abundance was produced. One widely considered production mechan...
[ { "created": "Mon, 25 Nov 2019 22:03:34 GMT", "version": "v1" }, { "created": "Wed, 14 Oct 2020 16:28:36 GMT", "version": "v2" } ]
2020-10-15
[ [ "Rueter", "Thomas D.", "" ], [ "Rizzo", "Thomas G.", "" ], [ "Hewett", "JoAnne L.", "" ] ]
The nature of dark matter (DM) and how it might interact with the particles of the Standard Model (SM) is one of greatest mysteries currently facing particle physics, and addressing these issues should provide some understanding of how the observed relic abundance was produced. One widely considered production mechanis...
1306.2500
Sushant Raut
Monojit Ghosh, Pomita Ghoshal, Srubabati Goswami, Sushant K. Raut
Can atmospheric neutrino experiments provide the first hint of leptonic CP violation?
5 pages, 4 figures. Version accepted for publication in Phys. Rev. D (Rapid Communication)
null
10.1103/PhysRevD.89.011301
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The measurement of a non-zero value of the 1-3 mixing angle has paved the way for the determination of leptonic CP violation. However the current generation long-baseline experiments T2K and NOvA have limited sensitivity to delta_{CP}. In this paper we show for the first time, the significance of that atmospheric neu...
[ { "created": "Tue, 11 Jun 2013 12:27:32 GMT", "version": "v1" }, { "created": "Thu, 27 Jun 2013 11:40:45 GMT", "version": "v2" }, { "created": "Fri, 28 Jun 2013 13:13:54 GMT", "version": "v3" }, { "created": "Wed, 4 Dec 2013 11:16:15 GMT", "version": "v4" } ]
2014-01-22
[ [ "Ghosh", "Monojit", "" ], [ "Ghoshal", "Pomita", "" ], [ "Goswami", "Srubabati", "" ], [ "Raut", "Sushant K.", "" ] ]
The measurement of a non-zero value of the 1-3 mixing angle has paved the way for the determination of leptonic CP violation. However the current generation long-baseline experiments T2K and NOvA have limited sensitivity to delta_{CP}. In this paper we show for the first time, the significance of that atmospheric neutr...
hep-ph/9912415
Fyodor V. Tkachov
D.Yu.Grigoriev and F.V.Tkachov (INR, Moscow)
An efficient implementation of the optimal jet definition
5p PS; corrections 2001-08: normalization of Y; code at http://www.inr.ac.ru/~ftkachov/projects/jets/
null
null
null
hep-ph hep-ex
null
We describe an efficient implementation of the optimal jet definition derived in hep-ph/9901444 (revision of January, 2000) and implemented in Fortran 77. The algorithm handles both c.m.s. and hadron collision kinematics.
[ { "created": "Sun, 19 Dec 1999 16:40:36 GMT", "version": "v1" }, { "created": "Sat, 8 Jan 2000 09:42:08 GMT", "version": "v2" }, { "created": "Thu, 16 Aug 2001 03:46:58 GMT", "version": "v3" } ]
2007-05-23
[ [ "Grigoriev", "D. Yu.", "", "INR, Moscow" ], [ "Tkachov", "F. V.", "", "INR, Moscow" ] ]
We describe an efficient implementation of the optimal jet definition derived in hep-ph/9901444 (revision of January, 2000) and implemented in Fortran 77. The algorithm handles both c.m.s. and hadron collision kinematics.
1312.2887
Alexandr Panin
Dmitry Gorbunov, Alexander Panin
On the minimal active-sterile neutrino mixing in seesaw type I mechanism with sterile neutrinos at GeV scale
7 pages, 2 figures
Phys. Rev. D 89, 017302 (2014)
10.1103/PhysRevD.89.017302
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Renewed interest in GeV-scale sterile neutrinos capable of explaining active neutrino oscillations via see-saw type I mechanism has been expressed in several proposals of direct searches. Given this activity we estimate the minimal values of sterile-active mixing angles provided one, two, or three sterile neutrinos a...
[ { "created": "Tue, 10 Dec 2013 17:22:42 GMT", "version": "v1" } ]
2014-02-05
[ [ "Gorbunov", "Dmitry", "" ], [ "Panin", "Alexander", "" ] ]
Renewed interest in GeV-scale sterile neutrinos capable of explaining active neutrino oscillations via see-saw type I mechanism has been expressed in several proposals of direct searches. Given this activity we estimate the minimal values of sterile-active mixing angles provided one, two, or three sterile neutrinos are...
hep-ph/0402086
Tianjun Li
Junhai Kang, Paul Langacker, Tianjun Li, Tao Liu
Electroweak Baryogenesis in a Supersymmetric U(1)' Model
RevTex, 4 pages, 2 figures, references added, version to appear in PRL
Phys.Rev.Lett. 94 (2005) 061801
10.1103/PhysRevLett.94.061801
null
hep-ph astro-ph
null
We construct an anomaly free supersymmetric U(1)' model with a secluded U(1)'-breaking sector. We study the one-loop effective potential at finite temperature, and show that there exists a strong enough first order electroweak phase transition for electroweak baryogenesis (EWBG) because of the large trilinear term $A...
[ { "created": "Mon, 9 Feb 2004 02:22:02 GMT", "version": "v1" }, { "created": "Thu, 20 Jan 2005 21:59:02 GMT", "version": "v2" } ]
2016-09-06
[ [ "Kang", "Junhai", "" ], [ "Langacker", "Paul", "" ], [ "Li", "Tianjun", "" ], [ "Liu", "Tao", "" ] ]
We construct an anomaly free supersymmetric U(1)' model with a secluded U(1)'-breaking sector. We study the one-loop effective potential at finite temperature, and show that there exists a strong enough first order electroweak phase transition for electroweak baryogenesis (EWBG) because of the large trilinear term $A_h...
hep-ph/9806531
Kosuke Odagiri
K. Odagiri (Cavendish Laboratory, Cambridge, UK)
Colour connection structure of (supersymmetric) QCD ($2\to2$) processes
12 pages, 4 figures, LaTeX2e
JHEP 9810:006,1998
10.1088/1126-6708/1998/10/006
Cavendish-HEP-98/05
hep-ph
null
The colour connection structure of QCD ($2\to2$) processes is discussed, with emphasis on its application to the supersymmetric 2 parton $\to$ 2 sparton processes, which are currently being implemented in the HERWIG Monte Carlo event generator. The procedure described by Marchesini and Webber is found to be inadequat...
[ { "created": "Tue, 30 Jun 1998 15:44:09 GMT", "version": "v1" }, { "created": "Wed, 10 Feb 1999 16:40:46 GMT", "version": "v2" } ]
2010-02-03
[ [ "Odagiri", "K.", "", "Cavendish Laboratory, Cambridge, UK" ] ]
The colour connection structure of QCD ($2\to2$) processes is discussed, with emphasis on its application to the supersymmetric 2 parton $\to$ 2 sparton processes, which are currently being implemented in the HERWIG Monte Carlo event generator. The procedure described by Marchesini and Webber is found to be inadequate,...
0807.2922
Gilberto Ramalho
G. Ramalho and M.T. Pena
Electromagnetic form factors of the Delta in a S-wave approach
11 pages, 3 figures
J.Phys.G36:085004,2009
10.1088/0954-3899/36/8/085004
JLAB-THY-08-857
hep-ph hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Without any further adjusting of parameters, a relativistic constituent quark model, successful in the description of the data for the nucleon elastic form factors and of the dominant contribution for the nucleon to Delta electromagnetic transition, is used here to predict the dominant electromagnetic form factors of...
[ { "created": "Fri, 18 Jul 2008 19:46:10 GMT", "version": "v1" }, { "created": "Thu, 21 Aug 2008 17:53:28 GMT", "version": "v2" }, { "created": "Thu, 4 Jun 2009 16:41:37 GMT", "version": "v3" } ]
2009-07-24
[ [ "Ramalho", "G.", "" ], [ "Pena", "M. T.", "" ] ]
Without any further adjusting of parameters, a relativistic constituent quark model, successful in the description of the data for the nucleon elastic form factors and of the dominant contribution for the nucleon to Delta electromagnetic transition, is used here to predict the dominant electromagnetic form factors of t...
1504.00749
Masatoshi Yamada
Ken-Ichi Aoki and Masatoshi Yamada
The RG flow of Nambu--Jona-Lasinio model at finite temperature and density
14 pages, 5 figures, published version
Int. J. Mod. Phys. A 30, 1550180 (2015)
10.1142/S0217751X15501808
KANAZAWA-15-03
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the Nambu--Jona-Lasinio model at finite temperature and finite density by using the functional renormalization group. The RG flows of the four-fermi coupling constant in the NJL model are investigated. We obtain the chiral phase boundary in cases of the large-$N$ leading approximation and an improved approxi...
[ { "created": "Fri, 3 Apr 2015 05:44:19 GMT", "version": "v1" }, { "created": "Fri, 2 Oct 2015 11:19:55 GMT", "version": "v2" } ]
2015-10-05
[ [ "Aoki", "Ken-Ichi", "" ], [ "Yamada", "Masatoshi", "" ] ]
We study the Nambu--Jona-Lasinio model at finite temperature and finite density by using the functional renormalization group. The RG flows of the four-fermi coupling constant in the NJL model are investigated. We obtain the chiral phase boundary in cases of the large-$N$ leading approximation and an improved approxima...
hep-ph/9712363
Michael Kachelriess
M. Kachelriess
Neutrino self-energy and pair creation in neutron stars
9 pages, latex2e, 1 figure
Phys.Lett. B426 (1998) 89-94
10.1016/S0370-2693(98)00076-8
null
hep-ph
null
Massless neutrino exchange leads to a new long-range force between matter. Recently, it was claimed both that the potential energy due to this interaction i) dominates the total energy of neutron stars and ii) that it is zero. We recalculate the energy of a neutrino propagating in a classical, uniform background of n...
[ { "created": "Fri, 12 Dec 1997 18:03:46 GMT", "version": "v1" } ]
2009-10-30
[ [ "Kachelriess", "M.", "" ] ]
Massless neutrino exchange leads to a new long-range force between matter. Recently, it was claimed both that the potential energy due to this interaction i) dominates the total energy of neutron stars and ii) that it is zero. We recalculate the energy of a neutrino propagating in a classical, uniform background of neu...
hep-ph/0010070
Badri Magradze
B.A. Magradze (Joint Institute for Nuclear Research, Dubna, and A. Razmadze Mathematical Institute, Tbilisi.)
QCD coupling up to third order in standard and analytic perturbation theories
21 pages, Latex, 12 tables. Abstract is changed. The recurrence formulas (18)-(20) are added. Formula (35) corrected and Table 2 is revised. Misprint in formula (37) is corrected. Formula (38) added
Communication of the Joint Institute for Nuclear Research, E2-2000-222, Dubna 2000
null
RMI-000-45
hep-ph
null
We analyze two sets of specific functions, that/which form the basis of the nonpower asymptotic expansions both in the timelike and spacelike regions for single scale dependent QCD observables in the Shirkov--Solovtsov's Analytic Perturbation Theory (APT) free of unphysical singularities. These functions are explicit...
[ { "created": "Sun, 8 Oct 2000 12:45:27 GMT", "version": "v1" }, { "created": "Thu, 9 Nov 2000 11:27:40 GMT", "version": "v2" }, { "created": "Tue, 14 Nov 2000 15:25:12 GMT", "version": "v3" }, { "created": "Sun, 7 Jan 2001 12:58:19 GMT", "version": "v4" } ]
2007-05-23
[ [ "Magradze", "B. A.", "", "Joint Institute for Nuclear Research, Dubna, and A.\n Razmadze Mathematical Institute, Tbilisi." ] ]
We analyze two sets of specific functions, that/which form the basis of the nonpower asymptotic expansions both in the timelike and spacelike regions for single scale dependent QCD observables in the Shirkov--Solovtsov's Analytic Perturbation Theory (APT) free of unphysical singularities. These functions are explicitly...
2103.04974
Giancarlo Ferrera
Stefano Camarda, Leandro Cieri and Giancarlo Ferrera
Drell-Yan lepton-pair production: $q_T$ resummation at N$^3$LL accuracy and fiducial cross sections at N$^3$LO
17 pages, 3 figures. Slightly expanded text, figure and references added, results unchanged. Version published on PRD
null
10.1103/PhysRevD.104.L111503
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present high-accuracy QCD predictions for the transverse-momentum ($q_T$) distribution and fiducial cross sections of Drell-Yan lepton pairs produced in hadronic collisions. At small value of $q_T$ we resum to all perturbative orders the logarithmically enhanced contributions up to next-to-next-to-next-to-leading ...
[ { "created": "Mon, 8 Mar 2021 18:52:05 GMT", "version": "v1" }, { "created": "Thu, 25 Mar 2021 15:57:40 GMT", "version": "v2" }, { "created": "Tue, 11 Jan 2022 13:13:08 GMT", "version": "v3" } ]
2022-01-12
[ [ "Camarda", "Stefano", "" ], [ "Cieri", "Leandro", "" ], [ "Ferrera", "Giancarlo", "" ] ]
We present high-accuracy QCD predictions for the transverse-momentum ($q_T$) distribution and fiducial cross sections of Drell-Yan lepton pairs produced in hadronic collisions. At small value of $q_T$ we resum to all perturbative orders the logarithmically enhanced contributions up to next-to-next-to-next-to-leading lo...
2009.11996
Xi-Jie Zhan
Xi-Jie Zhan, Jian-Xiong Wang
Inclusive $\Upsilon(1S,2S,3S)$ photoproduction at the CEPC
Version accepted for publication in Chinese Physics C
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The inclusive $\Upsilon(1S,2S,3S)$ photoproduction at the future Circular-Electron-Positron-Collider (CEPC) is studied based on the non-relativistic QCD (NRQCD). Including the contributions from both direct and resolved photons, we present different distributions for $\Upsilon(1S,2S,3S)$ production and the results sh...
[ { "created": "Fri, 25 Sep 2020 01:38:58 GMT", "version": "v1" }, { "created": "Sun, 1 Nov 2020 11:01:44 GMT", "version": "v2" } ]
2020-11-03
[ [ "Zhan", "Xi-Jie", "" ], [ "Wang", "Jian-Xiong", "" ] ]
The inclusive $\Upsilon(1S,2S,3S)$ photoproduction at the future Circular-Electron-Positron-Collider (CEPC) is studied based on the non-relativistic QCD (NRQCD). Including the contributions from both direct and resolved photons, we present different distributions for $\Upsilon(1S,2S,3S)$ production and the results show...
1303.2230
Dao-Neng Gao
Yi Sun, Hao-Ran Chang, Dao-Neng Gao
Higgs decays to gamma l+ l- in the standard model
16 pages, 9 figures. Typos corrected, references added
null
10.1007/JHEP05(2013)061
USTC-ICTS-12-15
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The radiative Higgs decays h -> gamma l+l- with l=e,mu and tau are analyzed in the standard model using m_h=125 GeV. Both tree and one-loop diagrams for the processes are evaluated. In addition to their decay rates and dilepton invariant mass distributions, we focus on the forward-back asymmetries in these modes. Our...
[ { "created": "Sat, 9 Mar 2013 16:30:10 GMT", "version": "v1" }, { "created": "Mon, 25 Mar 2013 09:58:50 GMT", "version": "v2" } ]
2015-06-15
[ [ "Sun", "Yi", "" ], [ "Chang", "Hao-Ran", "" ], [ "Gao", "Dao-Neng", "" ] ]
The radiative Higgs decays h -> gamma l+l- with l=e,mu and tau are analyzed in the standard model using m_h=125 GeV. Both tree and one-loop diagrams for the processes are evaluated. In addition to their decay rates and dilepton invariant mass distributions, we focus on the forward-back asymmetries in these modes. Our c...
hep-ph/9412257
null
V.P. Gusynin, V.A. Miransky and I.A. Shovkovy
Dimensional Reduction and Dynamical Chiral Symmetry Breaking by a Magnetic Field in $3+1$ Dimensions
13 pages, LaTeX, no figures
Phys.Lett. B349 (1995) 477-483
10.1016/0370-2693(95)00232-A
Kiev-ITP-94-58E
hep-ph hep-th
null
It is shown that in $3+1$ dimensions, a constant magnetic field is a catalyst of dynamical chiral symmetry breaking, leading to generating a fermion mass even at the weakest attractive interaction between fermions. The essence of this effect is the dimensional reduction $D \rightarrow D-2$ ($3+1 \rightarrow 1+1$) in ...
[ { "created": "Thu, 8 Dec 1994 08:44:14 GMT", "version": "v1" } ]
2019-08-15
[ [ "Gusynin", "V. P.", "" ], [ "Miransky", "V. A.", "" ], [ "Shovkovy", "I. A.", "" ] ]
It is shown that in $3+1$ dimensions, a constant magnetic field is a catalyst of dynamical chiral symmetry breaking, leading to generating a fermion mass even at the weakest attractive interaction between fermions. The essence of this effect is the dimensional reduction $D \rightarrow D-2$ ($3+1 \rightarrow 1+1$) in th...
1705.00948
C. Q. Geng
Y.K. Hsiao and C.Q. Geng
Determinations of $|V_{cb}|$ and $|V_{ub}|$ from baryonic $\Lambda_b$ decays
8 pages, i figure
Eur. Phys. J. C77, 714 (2017)
10.1140/epjc/s10052-017-5271-1
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We extract the Cabibbo-Kobayashi-Maskawa matrix element $V_{cb}$ from the exclusive decays of $\Lambda_b\to \Lambda_c\ell\bar \nu_\ell$ and $\Lambda_b\to \Lambda_c M_{(c)}$ with $M=(\pi^-,K^-)$ and $M_c=(D^-,D^-_s)$, where the branching ratios of $\Lambda_b\to \Lambda M_{(c)}$ measured with high precisions have not b...
[ { "created": "Tue, 2 May 2017 13:06:29 GMT", "version": "v1" } ]
2017-11-02
[ [ "Hsiao", "Y. K.", "" ], [ "Geng", "C. Q.", "" ] ]
We extract the Cabibbo-Kobayashi-Maskawa matrix element $V_{cb}$ from the exclusive decays of $\Lambda_b\to \Lambda_c\ell\bar \nu_\ell$ and $\Lambda_b\to \Lambda_c M_{(c)}$ with $M=(\pi^-,K^-)$ and $M_c=(D^-,D^-_s)$, where the branching ratios of $\Lambda_b\to \Lambda M_{(c)}$ measured with high precisions have not bee...
1611.04598
Xiao-Ping Wang
Vedran Brdar, Joachim Kopp, Xiao-Ping Wang (MITP, Johannes Gutenberg University Mainz)
Sterile Neutrinos and Flavor Ratios in IceCube
15 pages, 6 figures; v2 matched to journal version
JCAP01(2017)026
10.1088/1475-7516/2017/01/026
MITP/16-116
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The flavor composition of astrophysical neutrinos observed in neutrino telescopes is a powerful discriminator between different astrophysical neutrino production mechanisms and can also teach us about the particle physics properties of neutrinos. In this paper, we investigate how the possible existence of light steri...
[ { "created": "Mon, 14 Nov 2016 21:00:02 GMT", "version": "v1" }, { "created": "Tue, 17 Jan 2017 16:12:10 GMT", "version": "v2" } ]
2017-01-18
[ [ "Brdar", "Vedran", "", "MITP, Johannes Gutenberg\n University Mainz" ], [ "Kopp", "Joachim", "", "MITP, Johannes Gutenberg\n University Mainz" ], [ "Wang", "Xiao-Ping", "", "MITP, Johannes Gutenberg\n University Mainz" ] ]
The flavor composition of astrophysical neutrinos observed in neutrino telescopes is a powerful discriminator between different astrophysical neutrino production mechanisms and can also teach us about the particle physics properties of neutrinos. In this paper, we investigate how the possible existence of light sterile...
0804.4282
Bronislav Zakharov
P. Aurenche, B.G. Zakharov and H. Zaraket
Failure of the collinear expansion in calculation of the induced gluon emission
10 pages, 2 eps figures
JETP Lett.87:605-610,2008
10.1134/S0021364008110039
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We demonstrate that the collinear expansion fails in the case of gluon emission from a fast quark produced in $eA$ DIS. In this approximation the N=1 rescattering contribution to the gluon spectrum vanishes. We show that the higher-twist approach by Guo, Wang and Zhang [4,5] based on the collinear expansion is wrong....
[ { "created": "Sun, 27 Apr 2008 14:25:35 GMT", "version": "v1" } ]
2009-02-19
[ [ "Aurenche", "P.", "" ], [ "Zakharov", "B. G.", "" ], [ "Zaraket", "H.", "" ] ]
We demonstrate that the collinear expansion fails in the case of gluon emission from a fast quark produced in $eA$ DIS. In this approximation the N=1 rescattering contribution to the gluon spectrum vanishes. We show that the higher-twist approach by Guo, Wang and Zhang [4,5] based on the collinear expansion is wrong. T...
0903.4869
Lisheng Geng
L.S. Geng, J. Martin Camalich, and M.J. Vicente Vacas
SU(3)-breaking corrections to the hyperon vector coupling $f_1(0)$ in covariant baryon chiral perturbation theory
13 pages, 5 figures
Phys.Rev.D79:094022,2009
10.1103/PhysRevD.79.094022
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the SU(3)-breaking corrections to the hyperon vector coupling $f_1(0)$ up to $\mathcal{O}(p^4)$ in covariant baryon chiral perturbation theory with dynamical octet and decuplet contributions. We find that the decuplet contributions are of similar or even larger size than the octet ones. Combining both, w...
[ { "created": "Fri, 27 Mar 2009 18:32:35 GMT", "version": "v1" } ]
2009-07-30
[ [ "Geng", "L. S.", "" ], [ "Camalich", "J. Martin", "" ], [ "Vacas", "M. J. Vicente", "" ] ]
We calculate the SU(3)-breaking corrections to the hyperon vector coupling $f_1(0)$ up to $\mathcal{O}(p^4)$ in covariant baryon chiral perturbation theory with dynamical octet and decuplet contributions. We find that the decuplet contributions are of similar or even larger size than the octet ones. Combining both, we ...
hep-ph/0507095
Ivan Schmidt
Ivan Schmidt
Shadowing and Antishadowing in Neutrino Deep Inelastic Scattering
4 pages, 1 figure, Prepared for the International Conference on QCD and Hadronic Physics, Beijing, China, June 16-20 2005
Int.J.Mod.Phys. A21 (2006) 942-945
10.1142/S0217751X0603237X
USM-TH-170
hep-ph
null
The coherence of multiscattering quark nuclear processes leads to shadowing and antishadowing of the electromagnetic nuclear structure functions in agreement with measurements. This picture leads to substantially different antishadowing for charged and neutral current processes, particularly in anti-neutrino reaction...
[ { "created": "Thu, 7 Jul 2005 20:13:05 GMT", "version": "v1" } ]
2009-11-11
[ [ "Schmidt", "Ivan", "" ] ]
The coherence of multiscattering quark nuclear processes leads to shadowing and antishadowing of the electromagnetic nuclear structure functions in agreement with measurements. This picture leads to substantially different antishadowing for charged and neutral current processes, particularly in anti-neutrino reactions,...
1203.2068
Purnendu Chakraborty
Purnendu Chakraborty, Munshi G. Mustafa
D=2 gluon condensate and QCD propagators at finite temperature
Minor modifications. Accepted in PLB
null
10.1016/j.physletb.2012.04.030
null
hep-ph hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the dimension two gluon condensate contribution to quark, gluon and ghost propagators at finite temperature.
[ { "created": "Fri, 9 Mar 2012 13:02:26 GMT", "version": "v1" }, { "created": "Sat, 14 Apr 2012 02:46:36 GMT", "version": "v2" } ]
2015-06-04
[ [ "Chakraborty", "Purnendu", "" ], [ "Mustafa", "Munshi G.", "" ] ]
We calculate the dimension two gluon condensate contribution to quark, gluon and ghost propagators at finite temperature.
2406.03957
Ricardo Florentino
Ricardo R. Florentino, Shinya Kanemura, Masanori Tanaka
Exploring loop-induced first-order electroweak phase transition in the Higgs effective field theory
24 pages, 5 figures
null
null
OU-HET-1223
hep-ph astro-ph.CO
http://creativecommons.org/licenses/by/4.0/
The nearly aligned Higgs Effective Field Theory (naHEFT) is based on the general assumption: all deviations in the Higgs boson couplings are originated from quantum one-loop effects of new particles that are integrated out. If the new particles integrated out have the same non-decoupling property, physics of the elec...
[ { "created": "Thu, 6 Jun 2024 11:04:35 GMT", "version": "v1" } ]
2024-06-07
[ [ "Florentino", "Ricardo R.", "" ], [ "Kanemura", "Shinya", "" ], [ "Tanaka", "Masanori", "" ] ]
The nearly aligned Higgs Effective Field Theory (naHEFT) is based on the general assumption: all deviations in the Higgs boson couplings are originated from quantum one-loop effects of new particles that are integrated out. If the new particles integrated out have the same non-decoupling property, physics of the electr...
0704.1710
Kazuya Mitsutani
Kazuya Mitsutani, Masakiyo Kitazawa, Teiji Kunihiro, Yukio Nemoto
Further Analysis of Excitations of Quarks at Finite Temperature -- Mass Effect and Pole Structure --
6pages, 5 figures. Poster presentation at the 19th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions (QM2006) held in Shanghai, China on November 14-20, 2006
Int.J.Mod.Phys.E16:2263-2268,2007
10.1142/S0218301307007787
YITP-07-19
hep-ph
null
We calculate the spectral function of the massive quark at finite temperature (T) using a Yukawa model and show that the peak in the negative energy region among the three-peaks found in a previous work for the massless quark is largely suppressed. To explore the underlying mechanism of this behavior, we also investi...
[ { "created": "Fri, 13 Apr 2007 07:43:05 GMT", "version": "v1" } ]
2010-11-26
[ [ "Mitsutani", "Kazuya", "" ], [ "Kitazawa", "Masakiyo", "" ], [ "Kunihiro", "Teiji", "" ], [ "Nemoto", "Yukio", "" ] ]
We calculate the spectral function of the massive quark at finite temperature (T) using a Yukawa model and show that the peak in the negative energy region among the three-peaks found in a previous work for the massless quark is largely suppressed. To explore the underlying mechanism of this behavior, we also investiga...
hep-ph/0107224
Martin McDermott
M. McDermott, R. Sandapen and G. Shaw
Colour dipoles and virtual Compton scattering
Published version, 27 pages, 17 figures. Several minor changes made in response to the referee's comments: discussion concerning the azimuthal angle phi and the large Q^2 limit made more precise, two figures added to compare the transverse size profiles for DVCS and DIS. Eq.(34) corrected and asymmetry figures ...
Eur.Phys.J.C22:655-666,2002
10.1007/s100520100846
null
hep-ph
null
An analysis of Deeply Virtual Compton Scattering (DVCS) is made within the colour dipole model. We compare and contrast two models for the dipole cross-section which have been successful in describing structure function data. Both models agree with the available cross section data on DVCS from HERA. We give predictio...
[ { "created": "Fri, 20 Jul 2001 17:32:41 GMT", "version": "v1" }, { "created": "Thu, 8 Nov 2001 17:37:36 GMT", "version": "v2" } ]
2011-09-13
[ [ "McDermott", "M.", "" ], [ "Sandapen", "R.", "" ], [ "Shaw", "G.", "" ] ]
An analysis of Deeply Virtual Compton Scattering (DVCS) is made within the colour dipole model. We compare and contrast two models for the dipole cross-section which have been successful in describing structure function data. Both models agree with the available cross section data on DVCS from HERA. We give predictions...
hep-ph/9910228
Laura Reina
S. Dawson (BNL) and L. Reina (FSU)
Measuring the Higgs Yukawa Couplings at a Next Linear Collider
6 pages, 6 figures, use sprocl.sty. Proceedings of the LCWS99, International Workshop on Linear Colliders, Sitges, Spain, May 1999
null
null
null
hep-ph
null
We investigate the inclusive production of a Higgs boson with a pair of heavy quarks (t-tbar b-bbar), in e^+e^- collisions at high energies, sqrt(s)=500 GeV and sqrt(s)=1 TeV. We consider both the Standard Model and the supersymmetric case. In both cases O(alpha_s) QCD corrections are included. The associated product...
[ { "created": "Mon, 4 Oct 1999 21:51:19 GMT", "version": "v1" } ]
2007-05-23
[ [ "Dawson", "S.", "", "BNL" ], [ "Reina", "L.", "", "FSU" ] ]
We investigate the inclusive production of a Higgs boson with a pair of heavy quarks (t-tbar b-bbar), in e^+e^- collisions at high energies, sqrt(s)=500 GeV and sqrt(s)=1 TeV. We consider both the Standard Model and the supersymmetric case. In both cases O(alpha_s) QCD corrections are included. The associated productio...
1105.1760
Edmond Iancu
Jorge Casalderrey-Solana and Edmond Iancu
Interference effects in medium-induced gluon radiation
47 pages, 7 figures. Improved physical discussion in Sect. 2. New section added (Sect. 6) on possible implications for in-medium jet evolution. More references added. Conclusions unchanged
null
10.1007/JHEP08(2011)015
CERN-PH-TH-2011-104
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
As a step towards understanding the in-medium evolution of a hard jet, we consider the interference pattern for the medium induced gluon radiation produced by a color singlet quark-antiquark antenna embedded in a QCD medium with size L. We focus on the typical kinematics for medium-induced gluon radiation in the BDMP...
[ { "created": "Mon, 9 May 2011 19:17:36 GMT", "version": "v1" }, { "created": "Tue, 17 May 2011 17:17:43 GMT", "version": "v2" } ]
2015-05-28
[ [ "Casalderrey-Solana", "Jorge", "" ], [ "Iancu", "Edmond", "" ] ]
As a step towards understanding the in-medium evolution of a hard jet, we consider the interference pattern for the medium induced gluon radiation produced by a color singlet quark-antiquark antenna embedded in a QCD medium with size L. We focus on the typical kinematics for medium-induced gluon radiation in the BDMPS-...
1909.11470
Emi Masaki
Emi Masaki, Arata Aoki and Jiro Soda
Stability of Axion Dark Matter-Photon Conversion
29 pages, 5 figures, published version
Phys. Rev. D 101, 043505 (2020)
10.1103/PhysRevD.101.043505
KOBE-COSMO-19-17
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is known that a coherently oscillating axion field is a candidate of the dark matter. In the presence of the oscillating axion, the photon can be resonantly produced through the parametric amplification. In the universe, there also exist cosmological magnetic fields which are coherent electromagnetic fields. In th...
[ { "created": "Tue, 24 Sep 2019 11:06:00 GMT", "version": "v1" }, { "created": "Tue, 11 Feb 2020 10:22:39 GMT", "version": "v2" } ]
2020-02-12
[ [ "Masaki", "Emi", "" ], [ "Aoki", "Arata", "" ], [ "Soda", "Jiro", "" ] ]
It is known that a coherently oscillating axion field is a candidate of the dark matter. In the presence of the oscillating axion, the photon can be resonantly produced through the parametric amplification. In the universe, there also exist cosmological magnetic fields which are coherent electromagnetic fields. In the ...
hep-ph/0004074
Eugene Shuster
Krishna Rajagopal and Eugene Shuster
On the Applicability of Weak-Coupling Results in High Density QCD
21 pages, 3 figures, uses LaTeX2e and ReVTeX, updated figures, made minor text changes
Phys.Rev. D62 (2000) 085007
10.1103/PhysRevD.62.085007
MIT-CTP-2969
hep-ph nucl-th
null
Quark matter at asymptotically high baryon chemical potential is in a color superconducting state characterized by a gap Delta. We demonstrate that although present weak-coupling calculations of Delta are formally correct for mu -> Infinity, the contributions which have to this point been neglected are large enough t...
[ { "created": "Fri, 7 Apr 2000 17:41:30 GMT", "version": "v1" }, { "created": "Thu, 18 May 2000 00:50:55 GMT", "version": "v2" } ]
2009-10-31
[ [ "Rajagopal", "Krishna", "" ], [ "Shuster", "Eugene", "" ] ]
Quark matter at asymptotically high baryon chemical potential is in a color superconducting state characterized by a gap Delta. We demonstrate that although present weak-coupling calculations of Delta are formally correct for mu -> Infinity, the contributions which have to this point been neglected are large enough tha...
hep-ph/0105083
Alexander Friedland
A. Aguirre (IAS, Princeton), C.P. Burgess (IAS, Princeton and McGill University, Montreal, Canada), A. Friedland (IAS, Princeton), D. Nolte (IAS, Princeton)
Astrophysical Constraints on Modifying Gravity at Large Distances
References added, submitted to Classical & Quantum Gravity
Class.Quant.Grav.18:R223-R232,2001
10.1088/0264-9381/18/23/202
null
hep-ph astro-ph gr-qc hep-th
null
Recently, several interesting proposals were made modifying the law of gravity on large scales, within a sensible relativistic formulation. This allows a precise formulation of the idea that such a modification might account for galaxy rotation curves, instead of the usual interpretation of these curves as evidence f...
[ { "created": "Thu, 10 May 2001 22:17:45 GMT", "version": "v1" }, { "created": "Fri, 25 May 2001 21:42:54 GMT", "version": "v2" } ]
2010-04-06
[ [ "Aguirre", "A.", "", "IAS, Princeton" ], [ "Burgess", "C. P.", "", "IAS, Princeton and McGill\n University, Montreal, Canada" ], [ "Friedland", "A.", "", "IAS, Princeton" ], [ "Nolte", "D.", "", "IAS,\n Princeton" ] ]
Recently, several interesting proposals were made modifying the law of gravity on large scales, within a sensible relativistic formulation. This allows a precise formulation of the idea that such a modification might account for galaxy rotation curves, instead of the usual interpretation of these curves as evidence for...
hep-ph/0701212
Zongguo Si
S. Y. Li, Z. G. Si, Z. J. Yang
Doubly Heavy Baryon Production at \gamma \gamma Collider
errors/typos are corrected
Phys.Lett.B648:284-288,2007
10.1016/j.physletb.2007.03.029
SDU-HEP200701
hep-ph
null
The inclusive production of doubly heavy baryons $\Xi_{cc}$ and $\Xi_{bb}$ at $\gamma\gamma$ collider is investigated. It is found that the contribution from the heavy quark pair $QQ$ in color triplet and color sextet are important.
[ { "created": "Thu, 25 Jan 2007 07:21:26 GMT", "version": "v1" }, { "created": "Fri, 26 Jan 2007 10:21:38 GMT", "version": "v2" }, { "created": "Sat, 17 Mar 2007 17:43:01 GMT", "version": "v3" }, { "created": "Wed, 10 Oct 2007 09:50:58 GMT", "version": "v4" } ]
2008-11-26
[ [ "Li", "S. Y.", "" ], [ "Si", "Z. G.", "" ], [ "Yang", "Z. J.", "" ] ]
The inclusive production of doubly heavy baryons $\Xi_{cc}$ and $\Xi_{bb}$ at $\gamma\gamma$ collider is investigated. It is found that the contribution from the heavy quark pair $QQ$ in color triplet and color sextet are important.
hep-ph/0110135
Michal Praszalowicz
M. Praszalowicz, H.-Ch. Kim and K. Goeke
SU(3) Symmetry Breaking and Polarized Parton Densities
10 pages, 6 figures, presented at Dubna Workshop Spin 2001, uses wrapfig.sty
null
null
Jagellonian University preprint TPJU-9/2001
hep-ph
null
We analyze the semileptonic weak decays of the octet baryons in a "model independent" approach, based on the algebraic structure of the Chiral Quark-Soliton Model. We argue that this analysis is in fact more general than the model itself. While the symmetry breaking for the semileptonic decays themselves is not stron...
[ { "created": "Wed, 10 Oct 2001 12:26:29 GMT", "version": "v1" } ]
2010-06-23
[ [ "Praszalowicz", "M.", "" ], [ "Kim", "H. -Ch.", "" ], [ "Goeke", "K.", "" ] ]
We analyze the semileptonic weak decays of the octet baryons in a "model independent" approach, based on the algebraic structure of the Chiral Quark-Soliton Model. We argue that this analysis is in fact more general than the model itself. While the symmetry breaking for the semileptonic decays themselves is not strong,...
1509.01416
Kai Gallmeister
M. Beitel, K. Gallmeister, C. Greiner
Equilibration of hadrons in HICs via Hagedorn States
To appear in the proceedings of the 15th International Conference on Strangeness in Quark Matter (SQM2015), Dubna, Russian Federation, 6-11 July 2015
null
10.1088/1742-6596/668/1/012057
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Hagedorn states (HS) are a tool to model the hadronization process which occurs in the phase transition region between the quark gluon plasma (QGP) and the hadron resonance gas (HRG). These states are believed to appear near the Hagedorn temperature $T_H$ which in our understanding equals the critical temperature $T_...
[ { "created": "Fri, 4 Sep 2015 11:49:22 GMT", "version": "v1" } ]
2016-02-17
[ [ "Beitel", "M.", "" ], [ "Gallmeister", "K.", "" ], [ "Greiner", "C.", "" ] ]
Hagedorn states (HS) are a tool to model the hadronization process which occurs in the phase transition region between the quark gluon plasma (QGP) and the hadron resonance gas (HRG). These states are believed to appear near the Hagedorn temperature $T_H$ which in our understanding equals the critical temperature $T_c$...
hep-ph/9610226
Peter Arnold
Peter Arnold and David Wright
The tricritical point of finite-temperature phase transitions in large N(Higgs) gauge theories
33 pages, LaTex with RevTex, 15 figures in embeded postscript (epsf)
Phys.Rev.D55:6274-6286,1997
10.1103/PhysRevD.55.6274
UW/PT-96-27
hep-ph
null
Gauge theories broken by a single Higgs field are known to have first-order phase transitions in temperature if $\lambda/g^2 \ll 1$, where $g$ is the gauge coupling and $\lambda$ the Higgs self-coupling. If the theory is extended from one to $N$ Higgs doublets, with U($N$) flavor symmetry, the transition is known to ...
[ { "created": "Wed, 2 Oct 1996 22:38:53 GMT", "version": "v1" } ]
2010-02-16
[ [ "Arnold", "Peter", "" ], [ "Wright", "David", "" ] ]
Gauge theories broken by a single Higgs field are known to have first-order phase transitions in temperature if $\lambda/g^2 \ll 1$, where $g$ is the gauge coupling and $\lambda$ the Higgs self-coupling. If the theory is extended from one to $N$ Higgs doublets, with U($N$) flavor symmetry, the transition is known to be...
hep-ph/9403348
Larbi Beldjoudi
L.Beldjoudi and T.N Truong (CPT Ecole Polytechnique)
$\pi \pi$ Scattering and Pion Form Factors
8 pages, Tex, 4 postscript figures appended at the end. CPTH-A292.0294
null
null
null
hep-ph
null
The S and P wave $\pi \pi$ phase shifts are recalculated in terms of two phenomenological parameters using the one loop CPTh and the elastic unitarity condition. Using these phase shifts, the vector and scalar form factors are calculated and shown to be in a good agreement with experimental data. It is found that the...
[ { "created": "Wed, 23 Mar 1994 21:43:21 GMT", "version": "v1" } ]
2016-09-01
[ [ "Beldjoudi", "L.", "", "CPT Ecole Polytechnique" ], [ "Truong", "T. N", "", "CPT Ecole Polytechnique" ] ]
The S and P wave $\pi \pi$ phase shifts are recalculated in terms of two phenomenological parameters using the one loop CPTh and the elastic unitarity condition. Using these phase shifts, the vector and scalar form factors are calculated and shown to be in a good agreement with experimental data. It is found that the s...
0709.3272
Feng Yuan
Feng Yuan
Azimuthal Asymmetric Distribution of Hadrons Inside a Jet at Hadron Collider
10 pages, 4 figures
Phys.Rev.Lett.100:032003,2008
10.1103/PhysRevLett.100.032003
RBRC-689
hep-ph
null
We study the azimuthal asymmetric distribution of hadrons inside a high energy jet in the single transverse polarized proton proton scattering, coming from the Collins effect multiplied by the quark transversity distribution. We argue that the Collins function in this process is the same as that in the semi-inclusive...
[ { "created": "Thu, 20 Sep 2007 18:08:44 GMT", "version": "v1" } ]
2008-11-26
[ [ "Yuan", "Feng", "" ] ]
We study the azimuthal asymmetric distribution of hadrons inside a high energy jet in the single transverse polarized proton proton scattering, coming from the Collins effect multiplied by the quark transversity distribution. We argue that the Collins function in this process is the same as that in the semi-inclusive d...
hep-ph/0702278
Bumseok Kyae
Jihn E. Kim, Ji-Hun Kim, Bumseok Kyae
Superstring standard model from Z_{12-I} orbifold compactification with and without exotics, and effective R-parity
1+36 pages, JHEP3 class
JHEP 0706:034,2007
10.1088/1126-6708/2007/06/034
SNUTP 07-003, KIAS-P07009
hep-ph hep-th
null
We construct a supersymmetric standard model in the context of the $Z_{12-I}$ orbifold compactification of the heterotic string theory. The gauge group is $SU(3)_c\times SU(2)_L\times U(1)_Y\times U(1)^4\times[SO(10)\times U(1)^3]'$. We obtain three chiral families, $3\times\{Q,d^c,u^c,L,e^c,\nu^c\}$, and Higgs doubl...
[ { "created": "Tue, 27 Feb 2007 16:41:59 GMT", "version": "v1" } ]
2010-10-27
[ [ "Kim", "Jihn E.", "" ], [ "Kim", "Ji-Hun", "" ], [ "Kyae", "Bumseok", "" ] ]
We construct a supersymmetric standard model in the context of the $Z_{12-I}$ orbifold compactification of the heterotic string theory. The gauge group is $SU(3)_c\times SU(2)_L\times U(1)_Y\times U(1)^4\times[SO(10)\times U(1)^3]'$. We obtain three chiral families, $3\times\{Q,d^c,u^c,L,e^c,\nu^c\}$, and Higgs doublet...
2112.05058
Rainer Dick
Siddharth Tiwary and Rainer Dick
Constraints on antisymmetric tensor fields from Bhabha scattering
5 pages
Eur. Phys. J. C 81 (2021) 1115
10.1140/epjc/s10052-021-09915-x
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Antisymmetric tensor fields are a compelling prediction of string theory. This makes them an interesting target for particle physics because antisymmetric tensors may couple to electromagnetic dipole moments, thus opening a possible discovery opportunity for string theory. The strongest constraints on electromagnetic...
[ { "created": "Thu, 9 Dec 2021 17:35:02 GMT", "version": "v1" }, { "created": "Sat, 18 Dec 2021 16:34:49 GMT", "version": "v2" } ]
2021-12-21
[ [ "Tiwary", "Siddharth", "" ], [ "Dick", "Rainer", "" ] ]
Antisymmetric tensor fields are a compelling prediction of string theory. This makes them an interesting target for particle physics because antisymmetric tensors may couple to electromagnetic dipole moments, thus opening a possible discovery opportunity for string theory. The strongest constraints on electromagnetic d...
0906.2019
Edward Shuryak
Marco Cristoforetti and Edward Shuryak
Bose-Einstein Condensation of strongly interacting bosons: from liquid ${}^4$He to QCD monopoles
null
Phys.Rev.D80:054013,2009
10.1103/PhysRevD.80.054013
null
hep-ph cond-mat.stat-mech
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Starting from classic work of Feynman on the $\lambda$-point of liquid Helium, we show that his idea of universal action per particle at the BEC transition point is much more robust that it was known before. Using a simple "moving string model" for supercurrent and calculating the action, both semiclassically and num...
[ { "created": "Wed, 10 Jun 2009 21:20:08 GMT", "version": "v1" } ]
2009-11-06
[ [ "Cristoforetti", "Marco", "" ], [ "Shuryak", "Edward", "" ] ]
Starting from classic work of Feynman on the $\lambda$-point of liquid Helium, we show that his idea of universal action per particle at the BEC transition point is much more robust that it was known before. Using a simple "moving string model" for supercurrent and calculating the action, both semiclassically and numer...
1405.4633
Sara Taheri Monfared
Sara Taheri Monfared, Zahra Haddadi, Ali N. Khorramian
Target mass corrections and higher twist effects in polarized deep-inelastic scattering
14 pages, 13 figures, 8 tables
Physical Review D 89, 074052 (2014)
10.1103/PhysRevD.89.074052
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We perform a next-to-leading-order QCD analysis to world data on polarized structure functions $g_1$ and $g_2$ in a fixed-flavor number scheme. We include target mass corrections and higher twist effects in our fitting procedure and study their non-negligible effects on physically interesting quantities. Twist-3 cont...
[ { "created": "Mon, 19 May 2014 08:15:16 GMT", "version": "v1" } ]
2014-05-22
[ [ "Monfared", "Sara Taheri", "" ], [ "Haddadi", "Zahra", "" ], [ "Khorramian", "Ali N.", "" ] ]
We perform a next-to-leading-order QCD analysis to world data on polarized structure functions $g_1$ and $g_2$ in a fixed-flavor number scheme. We include target mass corrections and higher twist effects in our fitting procedure and study their non-negligible effects on physically interesting quantities. Twist-3 contri...
1005.0628
Linda Carpenter
Linda M. Carpenter and Arvind Rajaraman
Revisiting Constraints on Fourth Generation Neutrino Masses
7 pages 1 fig
Phys.Rev.D82:114019,2010
10.1103/PhysRevD.82.114019
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We revisit the current experimental bounds on fourth-generation Majorana neutrino masses, including the effects of right handed neutrinos. Current bounds from LEPII are significantly altered by a global analysis. We show that the current bounds on fourth generation neutrinos decaying to eW and mu W can be reduced to ...
[ { "created": "Tue, 4 May 2010 20:10:10 GMT", "version": "v1" } ]
2011-01-17
[ [ "Carpenter", "Linda M.", "" ], [ "Rajaraman", "Arvind", "" ] ]
We revisit the current experimental bounds on fourth-generation Majorana neutrino masses, including the effects of right handed neutrinos. Current bounds from LEPII are significantly altered by a global analysis. We show that the current bounds on fourth generation neutrinos decaying to eW and mu W can be reduced to ab...
hep-ph/9509267
null
V.M. Belyaev and A.V. Radyushkin
Soft Contribution to Form Factors of $\gamma^* p \to \Delta^+$ Transition
29 pages, REVTeX, 5 eps-figures in uuencoded gz-compressed .tar file
Phys.Rev.D53:6509-6521,1996
10.1103/PhysRevD.53.6509
CEBAF-TH-95-15
hep-ph
null
The purely nonperturbative soft contribution to the $\gamma^* p \to \Delta^+$ transition form factors is estimated using the local quark-hadron duality approach. Our results show that the soft contribution is dominated by the magnetic transition: the ratio $G_E^*(Q^2)/G_M^*(Q^2)$ is small for all accessible $Q^2$, in...
[ { "created": "Mon, 11 Sep 1995 23:54:42 GMT", "version": "v1" }, { "created": "Tue, 12 Sep 1995 13:32:33 GMT", "version": "v2" }, { "created": "Fri, 15 Sep 1995 21:54:05 GMT", "version": "v3" } ]
2014-11-17
[ [ "Belyaev", "V. M.", "" ], [ "Radyushkin", "A. V.", "" ] ]
The purely nonperturbative soft contribution to the $\gamma^* p \to \Delta^+$ transition form factors is estimated using the local quark-hadron duality approach. Our results show that the soft contribution is dominated by the magnetic transition: the ratio $G_E^*(Q^2)/G_M^*(Q^2)$ is small for all accessible $Q^2$, in c...
hep-ph/9910230
Gerald B. Cleaver
G.B. Cleaver, A.E. Faraggi, D.V. Nanopoulos, and J.W. Walker
A Minimal Superstring Standard Model II: A Phenomenological Study
41 pages. Standard Latex
Nucl.Phys. B593 (2001) 471-504
10.1016/S0550-3213(00)00543-5
ACT-9/99, CTP-TAMU-37/99, TPI-MINN-99/46, UMN-TH-1821-99
hep-ph hep-th
null
Recently, we demonstrated the existence of heterotic--string solutions in which the observable sector effective field theory just below the string scale reduces to that of the MSSM, with the standard observable gauge group being just SU(3)_C x SU(2)_L x U(1)_Y and the SU(3)_C x SU(2)_L x U(1)_Y-charged spectrum of th...
[ { "created": "Mon, 4 Oct 1999 22:50:42 GMT", "version": "v1" } ]
2009-10-31
[ [ "Cleaver", "G. B.", "" ], [ "Faraggi", "A. E.", "" ], [ "Nanopoulos", "D. V.", "" ], [ "Walker", "J. W.", "" ] ]
Recently, we demonstrated the existence of heterotic--string solutions in which the observable sector effective field theory just below the string scale reduces to that of the MSSM, with the standard observable gauge group being just SU(3)_C x SU(2)_L x U(1)_Y and the SU(3)_C x SU(2)_L x U(1)_Y-charged spectrum of the ...
1905.00703
Wayne de Paula
Tobias Frederico, Dyana C. Duarte, Wayne de Paula, Emanuel Ydrefors, Shaoyang Jia and Pieter Maris
Towards Minkowski space solutions of Dyson-Schwinger Equations through un-Wick rotation
null
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The fermion self-energy is calculated from the rainbow-ladder truncation of the Dyson-Schwinger equation (DSE) in quantum electrodynamics (QED) for spacelike momenta and in the complex momentum plane close to the timelike region, both using Pauli-Villars regularization. Specifically, the DSE is solved in the complex ...
[ { "created": "Wed, 1 May 2019 15:13:50 GMT", "version": "v1" }, { "created": "Fri, 3 May 2019 00:55:53 GMT", "version": "v2" } ]
2019-05-21
[ [ "Frederico", "Tobias", "" ], [ "Duarte", "Dyana C.", "" ], [ "de Paula", "Wayne", "" ], [ "Ydrefors", "Emanuel", "" ], [ "Jia", "Shaoyang", "" ], [ "Maris", "Pieter", "" ] ]
The fermion self-energy is calculated from the rainbow-ladder truncation of the Dyson-Schwinger equation (DSE) in quantum electrodynamics (QED) for spacelike momenta and in the complex momentum plane close to the timelike region, both using Pauli-Villars regularization. Specifically, the DSE is solved in the complex mo...
1502.01440
Osamu Yasuda
Osamu Yasuda
Constraints on non-standard flavor-dependent interactions from Superkamiokande and Hyperkamiokande
6 pages, 2 figures. Contribution to 16th International Workshop on Neutrino Factories and Future Neutrino Beam Facilities, 25-30 August, 2014. University of Glasgow, UK. A minor change added
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the constraint on the flavor-dependent neutral current Non-Standard Interactions in propagation from atmospheric neutrino experiments Superkamiokande and Hyperkamiokande. With the ansatz where the parameters which have strong constraints from other experiments are neglected, we show how these experimen...
[ { "created": "Thu, 5 Feb 2015 06:50:50 GMT", "version": "v1" }, { "created": "Fri, 6 Feb 2015 01:28:49 GMT", "version": "v2" } ]
2015-02-09
[ [ "Yasuda", "Osamu", "" ] ]
We investigate the constraint on the flavor-dependent neutral current Non-Standard Interactions in propagation from atmospheric neutrino experiments Superkamiokande and Hyperkamiokande. With the ansatz where the parameters which have strong constraints from other experiments are neglected, we show how these experiments...
1705.09292
Jan Heisig
Mathias Garny, Jan Heisig, Benedikt L\"ulf, Stefan Vogl
Coannihilation without chemical equilibrium
12 pages + references, 10 figures; v2: Discussion of kinetic equilibrium extended, matches published version
Phys. Rev. D 96, 103521 (2017)
10.1103/PhysRevD.96.103521
TUM-HEP 1085/17, TTK-17-18
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Chemical equilibrium is a commonly made assumption in the freeze-out calculation of coannihilating dark matter. We explore the possible failure of this assumption and find a new conversion-driven freeze-out mechanism. Considering a representative simplified model inspired by supersymmetry with a neutralino- and sbott...
[ { "created": "Thu, 25 May 2017 18:00:01 GMT", "version": "v1" }, { "created": "Fri, 17 Nov 2017 13:49:14 GMT", "version": "v2" } ]
2017-11-20
[ [ "Garny", "Mathias", "" ], [ "Heisig", "Jan", "" ], [ "Lülf", "Benedikt", "" ], [ "Vogl", "Stefan", "" ] ]
Chemical equilibrium is a commonly made assumption in the freeze-out calculation of coannihilating dark matter. We explore the possible failure of this assumption and find a new conversion-driven freeze-out mechanism. Considering a representative simplified model inspired by supersymmetry with a neutralino- and sbottom...
2307.09516
Martin Bauer
Martin Bauer and Guillaume Rostagni
Fifth forces from QCD axions scale differently
7 pages, 2 figures
null
null
IPPP/23/35
hep-ph
http://creativecommons.org/licenses/by/4.0/
We reexamine the low-energy potential for a macroscopic fifth force generated from the exchange of two axions. The shift-symmetry of the linear axion interactions leads to a potential falling off as $V(r) \sim 1/r^5$. We find that in the case of the QCD axion higher-order terms in the Lagrangian break the shift symme...
[ { "created": "Tue, 18 Jul 2023 18:00:33 GMT", "version": "v1" } ]
2023-07-20
[ [ "Bauer", "Martin", "" ], [ "Rostagni", "Guillaume", "" ] ]
We reexamine the low-energy potential for a macroscopic fifth force generated from the exchange of two axions. The shift-symmetry of the linear axion interactions leads to a potential falling off as $V(r) \sim 1/r^5$. We find that in the case of the QCD axion higher-order terms in the Lagrangian break the shift symmetr...
hep-ph/0701077
Boris Ioffe L
B.L.Ioffe and A.G.Oganesian
Axial anomaly and the precise value of the $\pi^0 \to 2 \gamma$ decay width
8 pages, few misprints are corrected
Phys.Lett.B647:389-393,2007
10.1016/j.physletb.2007.02.021
null
hep-ph
null
The anomaly in the vacuum expectation value of the product of axial and two vector currents (AVV) in QCD is investigated. The goal is to determine from its value the $\pi^0 \to 2 \gamma$ decay width with high precision. The sum rule for AVV formfactor is studied. The difference $f_{\pi^0} - f_{\pi^+}$ caused by stron...
[ { "created": "Wed, 10 Jan 2007 13:58:49 GMT", "version": "v1" }, { "created": "Mon, 5 Mar 2007 14:48:32 GMT", "version": "v2" } ]
2008-11-26
[ [ "Ioffe", "B. L.", "" ], [ "Oganesian", "A. G.", "" ] ]
The anomaly in the vacuum expectation value of the product of axial and two vector currents (AVV) in QCD is investigated. The goal is to determine from its value the $\pi^0 \to 2 \gamma$ decay width with high precision. The sum rule for AVV formfactor is studied. The difference $f_{\pi^0} - f_{\pi^+}$ caused by strong ...
hep-ph/0110337
Krzysztof Redlich
K. Redlich (GSI, Darmstadt & U. of Wroclaw), J. Cleymans (U. of Cape Town), H. Oeschler (U. of Darmstadt), A. Tounsi (U. of Paris 7)
Conservation Laws and Particle Production in Heavy Ion Collisions
Invited talk at International Symposium on Hadron and Nuclei, Seoul, Korea, 20-22 Feb 2001
null
10.1063/1.1425518
GSI-Preprint-2001-12
hep-ph
null
We discuss the role of the conservation laws related with U(1) internal symmetry group in the statistical model description of particle productions in ultrarelativistic heavy ion collisions. We derive and show the differences in particle multiplicities in the canonical and the grand canonical formulation of quantum n...
[ { "created": "Thu, 25 Oct 2001 18:42:23 GMT", "version": "v1" }, { "created": "Fri, 16 Nov 2001 14:00:13 GMT", "version": "v2" } ]
2009-11-07
[ [ "Redlich", "K.", "", "GSI, Darmstadt & U. of Wroclaw" ], [ "Cleymans", "J.", "", "U. of Cape\n Town" ], [ "Oeschler", "H.", "", "U. of Darmstadt" ], [ "Tounsi", "A.", "", "U. of Paris 7" ] ]
We discuss the role of the conservation laws related with U(1) internal symmetry group in the statistical model description of particle productions in ultrarelativistic heavy ion collisions. We derive and show the differences in particle multiplicities in the canonical and the grand canonical formulation of quantum num...
0802.3592
Thomas Kernreiter
A. Bartl, K. Hohenwarter-Sodek, T. Kernreiter, O. Kittel, M. Terwort
CP observables with spin-spin correlations in chargino production
21pp; discussion of background processes improved, references added; final version for Nucl. Phys. B
Nucl.Phys.B802:77-91,2008
10.1016/j.nuclphysb.2008.04.031
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the CP-violating terms of the spin-spin correlations in chargino production e+e- -> chi^+/-_1 chi^-/+_2, and their subsequent two-body decays into sneutrinos plus leptons. We propose novel CP-sensitive observables with the help of T-odd products of the spin-spin terms. These terms depend on the polarizations...
[ { "created": "Mon, 25 Feb 2008 11:05:08 GMT", "version": "v1" }, { "created": "Fri, 16 May 2008 18:16:04 GMT", "version": "v2" } ]
2008-11-26
[ [ "Bartl", "A.", "" ], [ "Hohenwarter-Sodek", "K.", "" ], [ "Kernreiter", "T.", "" ], [ "Kittel", "O.", "" ], [ "Terwort", "M.", "" ] ]
We study the CP-violating terms of the spin-spin correlations in chargino production e+e- -> chi^+/-_1 chi^-/+_2, and their subsequent two-body decays into sneutrinos plus leptons. We propose novel CP-sensitive observables with the help of T-odd products of the spin-spin terms. These terms depend on the polarizations o...
2111.09909
Ruben Sandapen
Ruben Sandapen
Two Schr\"odinger-like Equations for hadrons
8 pages, 4 figures. Talk given at the Virtual Tribute to Quark Confinement and the Hadron Spectrum, organized by the University of Stavanger, Norway. August 2nd - 6th, 2021
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this talk, based on [1,2], I argue that the holographic Schr\"odinger Equation of $(3+1)$-dim, conformal light-front QCD and the 't Hooft Equation of $(1+1)$-dim, large $N_c$ QCD, can be complementary to each other in providing a first approximation to hadron spectroscopy. Together, the two equations play a role i...
[ { "created": "Thu, 18 Nov 2021 19:12:12 GMT", "version": "v1" } ]
2021-11-22
[ [ "Sandapen", "Ruben", "" ] ]
In this talk, based on [1,2], I argue that the holographic Schr\"odinger Equation of $(3+1)$-dim, conformal light-front QCD and the 't Hooft Equation of $(1+1)$-dim, large $N_c$ QCD, can be complementary to each other in providing a first approximation to hadron spectroscopy. Together, the two equations play a role in ...
1306.4138
Y.H Ahn
Y. H. Ahn and Seungwon Baek
A dynamical CP source for CKM, PMNS and Leptogenesis
40 pages, 11 figures; version published in Phys. Rev. D. arXiv admin note: substantial text overlap with arXiv:1207.1229, arXiv:1304.0921, arXiv:1303.4863
null
10.1103/PhysRevD.88.036017
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a simple model for the spontaneous CP violation based on $SU(2)_{L}\times U(1)_{Y}\times A_{4}\times CP\times Z_{2}$ symmetry for quarks and leptons in a seesaw framework. In our model CP is spontaneously broken at high energies, after breaking of flavor symmetry, by a complex vacuum expectation value of $...
[ { "created": "Tue, 18 Jun 2013 11:01:58 GMT", "version": "v1" }, { "created": "Wed, 10 Jul 2013 00:40:16 GMT", "version": "v2" }, { "created": "Thu, 22 Aug 2013 06:13:19 GMT", "version": "v3" } ]
2013-09-03
[ [ "Ahn", "Y. H.", "" ], [ "Baek", "Seungwon", "" ] ]
We propose a simple model for the spontaneous CP violation based on $SU(2)_{L}\times U(1)_{Y}\times A_{4}\times CP\times Z_{2}$ symmetry for quarks and leptons in a seesaw framework. In our model CP is spontaneously broken at high energies, after breaking of flavor symmetry, by a complex vacuum expectation value of $A_...
hep-ph/9812202
Jay Watson
N.J. Watson
The Pinch Technique Beyond One Loop: The Gauge-Independent Two-Loop Quark Self-Energy
45 pages, 18 figures, Latex
Nucl.Phys.B552:461-507,1999
10.1016/S0550-3213(99)00197-2
null
hep-ph hep-th
null
It is shown how the pinch technique algorithm may be consistently extended beyond the one-loop level to obtain the gauge-independent two-loop fermion self-energy -i\hat\Sigma^(2)(p) in QCD in the pinch technique approach. The starting point for the construction is the general diagrammatic representation of the two-lo...
[ { "created": "Tue, 1 Dec 1998 01:46:18 GMT", "version": "v1" } ]
2011-07-19
[ [ "Watson", "N. J.", "" ] ]
It is shown how the pinch technique algorithm may be consistently extended beyond the one-loop level to obtain the gauge-independent two-loop fermion self-energy -i\hat\Sigma^(2)(p) in QCD in the pinch technique approach. The starting point for the construction is the general diagrammatic representation of the two-loop...
1207.2529
Pavel Fileviez Perez
Jonathan M. Arnold (Caltech), Pavel Fileviez Perez (CCPP, NYU), Bartosz Fornal (Caltech)
Supersymmetric Dark Matter Sectors
minor corrections, to appear in Physics Letters B
Phys.Lett. B718 (2012) 75-79
10.1016/j.physletb.2012.09.066
null
hep-ph astro-ph.CO hep-ex hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the properties of a dark matter sector where supersymmetry is a good symmetry. In this context we find that the stability of the dark matter candidate is possible even when R-parity is broken in the visible sector. In order to illustrate the idea we investigate a simple scenario where the dark matter c...
[ { "created": "Wed, 11 Jul 2012 02:09:25 GMT", "version": "v1" }, { "created": "Sat, 6 Oct 2012 13:12:19 GMT", "version": "v2" } ]
2012-10-31
[ [ "Arnold", "Jonathan M.", "", "Caltech" ], [ "Perez", "Pavel Fileviez", "", "CCPP, NYU" ], [ "Fornal", "Bartosz", "", "Caltech" ] ]
We investigate the properties of a dark matter sector where supersymmetry is a good symmetry. In this context we find that the stability of the dark matter candidate is possible even when R-parity is broken in the visible sector. In order to illustrate the idea we investigate a simple scenario where the dark matter can...
2004.12189
P. Divari C.
Paraskevi C. Divari
Supernova neutrino scattering off Gadolinium odd isotopes in water Cherenkov detectors
10 pages, 5 figures, 2 Tables. arXiv admin note: substantial text overlap with arXiv:1808.01677; text overlap with arXiv:nucl-th/9709006 by other authors
null
10.1088/1475-7516/2020/07/008
null
hep-ph astro-ph.IM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, the supernova neutrino(SN) charged-current interactions with Gd odd isotopes (A=155 and 157) are studied. We use measured spectra and the quasiparticle-phonon model (MQPM) to calculate the charged current response of odd Gd isotopes to supernova neutrinos. Flux-averaged cross-sections are obtained consi...
[ { "created": "Sat, 25 Apr 2020 17:05:51 GMT", "version": "v1" }, { "created": "Thu, 21 May 2020 09:29:50 GMT", "version": "v2" } ]
2020-07-22
[ [ "Divari", "Paraskevi C.", "" ] ]
In this work, the supernova neutrino(SN) charged-current interactions with Gd odd isotopes (A=155 and 157) are studied. We use measured spectra and the quasiparticle-phonon model (MQPM) to calculate the charged current response of odd Gd isotopes to supernova neutrinos. Flux-averaged cross-sections are obtained conside...
hep-ph/0609298
Martin White Mr
C. G. Lester, M. A. Parker and M. J. White
Three body kinematic endpoints in SUSY models with non-universal Higgs masses
21 pages, 13 figures, updated the preprint number to reflect status as an ATLAS scientific note
JHEP 0710:051,2007
10.1088/1126-6708/2007/10/051
Cavendish-HEP-2005-21, SN-ATLAS-2006-058
hep-ph
null
We derive and present expressions for the kinematic endpoints that arise in the invariant mass distributions of visible decay products of cascade decays featuring a two body decay followed by a three body decay. This is an extension of a current technique that addresses chains of successive two body decays. We then a...
[ { "created": "Thu, 28 Sep 2006 16:52:24 GMT", "version": "v1" }, { "created": "Fri, 29 Sep 2006 10:45:12 GMT", "version": "v2" }, { "created": "Tue, 28 Aug 2007 13:32:53 GMT", "version": "v3" } ]
2009-04-15
[ [ "Lester", "C. G.", "" ], [ "Parker", "M. A.", "" ], [ "White", "M. J.", "" ] ]
We derive and present expressions for the kinematic endpoints that arise in the invariant mass distributions of visible decay products of cascade decays featuring a two body decay followed by a three body decay. This is an extension of a current technique that addresses chains of successive two body decays. We then app...
2112.09713
Alberto Tonero Dr.
Wafia Bensalem, David London, Daniel Stolarski and Alberto Tonero
Searching for light new physics at the LHC via lepton-number violation
23 pages, 4 figures, 5 tables
null
10.1007/JHEP04(2022)049
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
We study the collider phenomenology of a simplified model containing a right-handed $W$ in which the $W_R$ couples predominantly to the third generation in the quark sector. The model also includes a light Majorana neutrino, with $M_1\sim {\cal O}(100)$ GeV, giving rise to lepton-number-violating signatures that are ...
[ { "created": "Fri, 17 Dec 2021 19:00:04 GMT", "version": "v1" } ]
2022-04-27
[ [ "Bensalem", "Wafia", "" ], [ "London", "David", "" ], [ "Stolarski", "Daniel", "" ], [ "Tonero", "Alberto", "" ] ]
We study the collider phenomenology of a simplified model containing a right-handed $W$ in which the $W_R$ couples predominantly to the third generation in the quark sector. The model also includes a light Majorana neutrino, with $M_1\sim {\cal O}(100)$ GeV, giving rise to lepton-number-violating signatures that are vi...
0909.4843
Manmohan Gupta
Neelu Mahajan, Rohit Verma, Manmohan Gupta
Investigating non-Fritzsch like texture specific quark mass matrices
13 pages, 4 figures, Accepted for publication in IJMPA
null
10.1142/S0217751X1004841X
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A detailed investigation of all possible textures of Fritzsch-like and non-Fritzsch like, 144 for texture 6 zero and 432 for texture 5 zero mass matrices, have been carried out to ascertain their compatibility with the existing quark mixing data. It seems that all the texture 6 zero possibilities are completely ruled...
[ { "created": "Sat, 26 Sep 2009 06:48:16 GMT", "version": "v1" }, { "created": "Mon, 19 Apr 2010 06:35:40 GMT", "version": "v2" } ]
2015-05-14
[ [ "Mahajan", "Neelu", "" ], [ "Verma", "Rohit", "" ], [ "Gupta", "Manmohan", "" ] ]
A detailed investigation of all possible textures of Fritzsch-like and non-Fritzsch like, 144 for texture 6 zero and 432 for texture 5 zero mass matrices, have been carried out to ascertain their compatibility with the existing quark mixing data. It seems that all the texture 6 zero possibilities are completely ruled o...
hep-ph/0701267
Johan Bijnens
Johan Bijnens, Niclas Danielsson and Timo A. Lahde
Partially Quenched and Three Flavour ChPT at Two Loops
11 pages, invited talk at ``Final Euridice Meeting'', August 24-28 2006, Kazimierz, Poland
ActaPhys.Polon.B38:2777-2788,2007
null
LU TP 07-03, NT@UW-07-02
hep-ph
null
A summary of recent progress in Chiral Perturbation Theory (ChPT) at the two-loop level is given. A short introduction to ChPT is included, along with an explanation of the usefulness of developing ChPT for partially quenched QCD. Further, our recent work in partially quenched ChPT is reviewed, and a few comments are...
[ { "created": "Wed, 31 Jan 2007 11:13:43 GMT", "version": "v1" } ]
2008-11-26
[ [ "Bijnens", "Johan", "" ], [ "Danielsson", "Niclas", "" ], [ "Lahde", "Timo A.", "" ] ]
A summary of recent progress in Chiral Perturbation Theory (ChPT) at the two-loop level is given. A short introduction to ChPT is included, along with an explanation of the usefulness of developing ChPT for partially quenched QCD. Further, our recent work in partially quenched ChPT is reviewed, and a few comments are g...
0809.2440
Seong Chan Park
Seong Chan Park
Inflation in the nonminimal theory with `K(phi)R' term
3 pages, 1 figure, Talk given at 16th International Conference on Supersymmetry and the Unification of Fundamental Interactions (SUSY08), Seoul, Korea, 16-21 Jun 2008
AIP Conf.Proc.1078:524-526,2009
10.1063/1.3052016
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A class of inflationary models with the nonminimal coupling term `K(phi)R' is considered. We show that the successful inflation can take place if the ratio between the square of the nonminimal coupling term and the potential for the scalar goes asymptotically constant.
[ { "created": "Mon, 15 Sep 2008 17:44:42 GMT", "version": "v1" } ]
2009-02-02
[ [ "Park", "Seong Chan", "" ] ]
A class of inflationary models with the nonminimal coupling term `K(phi)R' is considered. We show that the successful inflation can take place if the ratio between the square of the nonminimal coupling term and the potential for the scalar goes asymptotically constant.
hep-ph/9602289
Marcelo Gleiser
Marcelo Gleiser
The Origin of Baryonic Matter in the Universe: A Brief Review
15 pages, revtex, no figures. Plenary talk presented at the Brazilian Meeting on Particles and Fields, Caxambu, October 1995
null
10.1063/1.53231
DART-HEP-96/02
hep-ph astro-ph
null
I briefly review the main ideas and challenges involved in the computation of the observed baryonic asymmetry of the Universe.
[ { "created": "Tue, 13 Feb 1996 13:53:59 GMT", "version": "v1" } ]
2009-10-28
[ [ "Gleiser", "Marcelo", "" ] ]
I briefly review the main ideas and challenges involved in the computation of the observed baryonic asymmetry of the Universe.
0807.1121
Tomasz Pierzcha{\l}a
Tomasz Pierzchala, Krzysztof Piotrzkowski
Sensitivity to anomalous quartic gauge couplings in photon-photon interactions at the LHC
8 pages and 11 figures, Contribution to the CERN workshop on "High energy photon collisions at the LHC", 22-25 April 2008
Nucl.Phys.Proc.Suppl.179-180:257-264,2008
10.1016/j.nuclphysbps.2008.07.032
CP3-08-32
hep-ph hep-ex
http://creativecommons.org/licenses/publicdomain/
The exclusive two-photon production at the LHC of pairs of W and Z bosons provides a novel and unique test-ground for the electroweak gauge boson sector. In particular it offers, thanks to high gamma-gamma center-of-mass energies, large and direct sensitivity to the anomalous quartic gauge couplings otherwise very di...
[ { "created": "Mon, 7 Jul 2008 20:36:10 GMT", "version": "v1" } ]
2009-02-05
[ [ "Pierzchala", "Tomasz", "" ], [ "Piotrzkowski", "Krzysztof", "" ] ]
The exclusive two-photon production at the LHC of pairs of W and Z bosons provides a novel and unique test-ground for the electroweak gauge boson sector. In particular it offers, thanks to high gamma-gamma center-of-mass energies, large and direct sensitivity to the anomalous quartic gauge couplings otherwise very diff...
hep-ph/9909364
Marc Besancon
M. Besancon (CEA-Saclay-Dapnia)
Looking for extra-dimensions at the weak scale: experimental search for Kaluza-Klein states signatures at the e+e- linear collider
6 pages, 3 figures, corrected some typos
null
null
null
hep-ph
null
An experimental search for signatures of Kaluza-Klein graviton states at the 500 GeV e+e- linear collider, in which the graviton states are produced in association with a photon, is presented. The study of the signal extraction is performed with the help of Monte Carlo simulations
[ { "created": "Tue, 14 Sep 1999 14:41:03 GMT", "version": "v1" }, { "created": "Thu, 16 Sep 1999 08:32:09 GMT", "version": "v2" }, { "created": "Mon, 20 Sep 1999 14:01:06 GMT", "version": "v3" } ]
2007-05-23
[ [ "Besancon", "M.", "", "CEA-Saclay-Dapnia" ] ]
An experimental search for signatures of Kaluza-Klein graviton states at the 500 GeV e+e- linear collider, in which the graviton states are produced in association with a photon, is presented. The study of the signal extraction is performed with the help of Monte Carlo simulations
2206.14667
Javier Mazzitelli
Javier Mazzitelli
NNLO study of top-quark mass renormalization scheme uncertainties in Higgs boson production
15 pages, 4 figures. v2: added some references, minor changes in the text
null
10.1007/JHEP09(2022)065
MPP-2022-63
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The ambiguity in the choice of a renormalization scheme and scale for the top-quark mass leads to an additional source of theoretical uncertainty in the calculation of the Higgs boson production cross section via gluon fusion. These uncertainties were found to be dominant in the case of off-shell Higgs production at ...
[ { "created": "Wed, 29 Jun 2022 14:12:53 GMT", "version": "v1" }, { "created": "Mon, 19 Dec 2022 10:32:20 GMT", "version": "v2" } ]
2022-12-20
[ [ "Mazzitelli", "Javier", "" ] ]
The ambiguity in the choice of a renormalization scheme and scale for the top-quark mass leads to an additional source of theoretical uncertainty in the calculation of the Higgs boson production cross section via gluon fusion. These uncertainties were found to be dominant in the case of off-shell Higgs production at ne...
1307.7611
Stefan Floerchinger
Stefan Floerchinger and Urs Achim Wiedemann
Characterization of initial fluctuations for the hydrodynamical description of heavy ion collisions
40 pages, 16 figures
Phys. Rev. C 88, 044906 (2013)
10.1103/PhysRevC.88.044906
CERN-PH-TH/2013-179
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Event-by-event fluctuations in the initial conditions for a hydrodynamical description of heavy-ion collisions are characterized. We propose a Bessel-Fourier decomposition with respect to the azimuthal angle, the radius in the transverse plane and rapidity. This allows for a complete characterization of fluctuations ...
[ { "created": "Mon, 29 Jul 2013 15:16:10 GMT", "version": "v1" } ]
2013-10-30
[ [ "Floerchinger", "Stefan", "" ], [ "Wiedemann", "Urs Achim", "" ] ]
Event-by-event fluctuations in the initial conditions for a hydrodynamical description of heavy-ion collisions are characterized. We propose a Bessel-Fourier decomposition with respect to the azimuthal angle, the radius in the transverse plane and rapidity. This allows for a complete characterization of fluctuations in...
hep-ph/0604154
Rabindra N. Mohapatra
Ken Hsieh, R.N. Mohapatra and Salah Nasri
Dark Matter in Universal Extra Dimension Models: $\gamma_{KK}$ vrs $\nu_{R,KK}$
13 pages, 2 figures; minor changes; to appear in Phys. Rev.D
Phys.Rev.D74:066004,2006
10.1103/PhysRevD.74.066004
UMD-PP-06-004
hep-ph
null
We show that in a class of universal extra dimension models (UED), which solves both the neutrino mass and proton decay problem, an admixture of KK photon and KK right handed neutrinos can provide the required amount of cold dark matter (CDM). This model has two parameters $R^{-1}$ and $M_{Z'}$ ($R$ is the radius of ...
[ { "created": "Tue, 18 Apr 2006 19:07:06 GMT", "version": "v1" }, { "created": "Fri, 1 Sep 2006 17:20:28 GMT", "version": "v2" } ]
2008-11-26
[ [ "Hsieh", "Ken", "" ], [ "Mohapatra", "R. N.", "" ], [ "Nasri", "Salah", "" ] ]
We show that in a class of universal extra dimension models (UED), which solves both the neutrino mass and proton decay problem, an admixture of KK photon and KK right handed neutrinos can provide the required amount of cold dark matter (CDM). This model has two parameters $R^{-1}$ and $M_{Z'}$ ($R$ is the radius of th...
hep-ph/0101047
Jean-Marc Laget
J.-M. Laget
Strangeness Production by Electromagnetic and Hadronic Probes
10 pages, 9 figures; Invited talk at HYP2000 Conference, Torino, Italy, 23-27 October 2000. To appear in Nucl. Phys. A
Nucl.Phys. A691 (2001) 11-20
10.1016/S0375-9474(01)00996-4
null
hep-ph
null
After pioneering works on hypernuclei, strangeness production mechanisms have been studied in hadron collisions and photoreactions in the sixties. Recent experiments at SATURNE and COSY, in the hadronic sector, as well as ELSA and JLab, in the electromagnetic sector, have confirmed our basic ideas on the reaction mec...
[ { "created": "Fri, 5 Jan 2001 10:49:57 GMT", "version": "v1" } ]
2009-11-07
[ [ "Laget", "J. -M.", "" ] ]
After pioneering works on hypernuclei, strangeness production mechanisms have been studied in hadron collisions and photoreactions in the sixties. Recent experiments at SATURNE and COSY, in the hadronic sector, as well as ELSA and JLab, in the electromagnetic sector, have confirmed our basic ideas on the reaction mecha...
hep-ph/9809463
Grzegorz Wilk
G.Wilk and Z.Wlodarczyk
Do we observe L\'evy flights in cosmic rays?
LaTeX file and 1 LaTeX file with figure. Uses espcrc2.sty (included) and LaTeX2e. 4 pages
null
10.1016/S0920-5632(99)00239-X
null
hep-ph cond-mat nucl-th
null
We argue that the so called long flying component (LFC) observed in some cosmic ray experiments are yet another manifestation of L\'evy distributions (with index $q=1.3$), this time of the distribution observation probability of the depths of starting points of cascades. It means that LFC is governed by the so called...
[ { "created": "Mon, 21 Sep 1998 10:17:36 GMT", "version": "v1" } ]
2009-10-31
[ [ "Wilk", "G.", "" ], [ "Wlodarczyk", "Z.", "" ] ]
We argue that the so called long flying component (LFC) observed in some cosmic ray experiments are yet another manifestation of L\'evy distributions (with index $q=1.3$), this time of the distribution observation probability of the depths of starting points of cascades. It means that LFC is governed by the so called l...
hep-ph/9607228
null
A.B. Arbuzov (JINR, Dubna), V.S. Fadin (INP, Novosibirsk) E.A. Kuraev (JINR, Dubna), L.N. Lipatov (INP, St.-Petersburg), N.P. Merenkov (Phys.-Tech. Inst., Kharkov), L.G. Trentadue (Univ. & INFN Parma)
Small-Angle Bhabha Scattering
10 pages, Latex file epsfig.sty
Nucl.Phys.Proc.Suppl. 51C (1996) 154-163
10.1016/S0920-5632(96)90020-1
UPRF-96-476
hep-ph
null
We present the calculation of the elastic and inelastic high--energy small--angle electron--positron scattering with a {\it per mille} accuracy. PACS numbers 12.15.Lk, 12.20.--m, 12.20.Ds, 13.40.--f
[ { "created": "Wed, 3 Jul 1996 09:55:00 GMT", "version": "v1" } ]
2015-06-25
[ [ "Arbuzov", "A. B.", "", "JINR, Dubna" ], [ "Fadin", "V. S.", "", "INP, Novosibirsk" ], [ "Kuraev", "E. A.", "", "JINR, Dubna" ], [ "Lipatov", "L. N.", "", "INP, St.-Petersburg" ], [ "Merenkov", "N. P.", "", "Phys.-Tech...
We present the calculation of the elastic and inelastic high--energy small--angle electron--positron scattering with a {\it per mille} accuracy. PACS numbers 12.15.Lk, 12.20.--m, 12.20.Ds, 13.40.--f
hep-ph/9506463
null
Kacper Zalewski
Structure and Decays of Particles Containing Heavy Quarks (Theory)
12 pages, Proceedings of the conference Physics in Collision 1995
null
null
null
hep-ph
null
Some recent results and problems in the theory of particles containing heavy quarks ar reviewed.
[ { "created": "Fri, 30 Jun 1995 09:42:00 GMT", "version": "v1" } ]
2007-05-23
[ [ "Zalewski", "Kacper", "" ] ]
Some recent results and problems in the theory of particles containing heavy quarks ar reviewed.
1109.0512
Marco Taoso
Diego Restrepo, Marco Taoso, J. W. F. Valle, Oscar Zapata
Gravitino dark matter and neutrino masses with bilinear R-parity violation
10 pages, 4 figures, match the published version
Phys. Rev. D 85, 023523 (2012)
10.1103/PhysRevD.85.023523
IFIC/11-41
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Bilinear R-parity violation provides an attractive origin for neutrino masses and mixings. In such schemes the gravitino is a viable decaying dark matter particle whose R-parity violating decays lead to monochromatic photons with rates accessible to astrophysical observations. We determine the parameter region allowe...
[ { "created": "Fri, 2 Sep 2011 18:09:32 GMT", "version": "v1" }, { "created": "Wed, 1 Feb 2012 02:34:06 GMT", "version": "v2" } ]
2013-05-30
[ [ "Restrepo", "Diego", "" ], [ "Taoso", "Marco", "" ], [ "Valle", "J. W. F.", "" ], [ "Zapata", "Oscar", "" ] ]
Bilinear R-parity violation provides an attractive origin for neutrino masses and mixings. In such schemes the gravitino is a viable decaying dark matter particle whose R-parity violating decays lead to monochromatic photons with rates accessible to astrophysical observations. We determine the parameter region allowed ...