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2405.11127
Qi Huang
Qi Huang, Zi-Xuan Ma, Jia-Jun Wu, Rong-Gang Ping, Jun He, and Hong-Xia Huang
The role of triangle singularity in isospin breaking process $J/\psi \to \Lambda \bar{\Lambda} \pi$ and the possible evidence of $\Sigma^*(\frac{1}{2}^-)$ states
null
null
null
null
hep-ph
http://creativecommons.org/licenses/by-sa/4.0/
In this study, the impact of triangle singularity is investigated in the isospin-breaking process $J/\psi \to \Lambda \bar{\Lambda} \pi$. The triangle singularity is found to play a significant role in the process, resulting in the creation of a resonance-like structure around 1.4 GeV in the $\Lambda\pi(\bar{\Lambda}...
[ { "created": "Sat, 18 May 2024 00:05:24 GMT", "version": "v1" } ]
2024-05-21
[ [ "Huang", "Qi", "" ], [ "Ma", "Zi-Xuan", "" ], [ "Wu", "Jia-Jun", "" ], [ "Ping", "Rong-Gang", "" ], [ "He", "Jun", "" ], [ "Huang", "Hong-Xia", "" ] ]
In this study, the impact of triangle singularity is investigated in the isospin-breaking process $J/\psi \to \Lambda \bar{\Lambda} \pi$. The triangle singularity is found to play a significant role in the process, resulting in the creation of a resonance-like structure around 1.4 GeV in the $\Lambda\pi(\bar{\Lambda}\p...
0904.2528
Monika Blanke
Monika Blanke
Insights from the Interplay of K -> pi nu anti-nu and epsilon_K on the New Physics Flavour Structure
12 pages, 5 figures, clarifying comments and few references added
Acta Phys.Polon.B41:127,2010
null
TUM-HEP-714/09, MPP-2009-25
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In certain new physics (NP) models, such as the Littlest Higgs model with T-parity, a strict correlation between the K_L -> pi0 nu anti-nu and K+ -> pi+ nu anti-nu branching ratios has been observed, allowing essentially only for two branches of possible points, while in other NP frameworks, such as the general MSSM ...
[ { "created": "Thu, 16 Apr 2009 15:52:55 GMT", "version": "v1" }, { "created": "Thu, 6 Aug 2009 13:32:45 GMT", "version": "v2" } ]
2010-05-12
[ [ "Blanke", "Monika", "" ] ]
In certain new physics (NP) models, such as the Littlest Higgs model with T-parity, a strict correlation between the K_L -> pi0 nu anti-nu and K+ -> pi+ nu anti-nu branching ratios has been observed, allowing essentially only for two branches of possible points, while in other NP frameworks, such as the general MSSM or...
hep-ph/9709231
Philip Page
Philip R. Page
Implications of a J^PC exotic
10 pages, LaTeX, minor numerical corrections
Phys.Lett.B415:205-210,1997
10.1016/S0370-2693(97)01232-X
null
hep-ph
null
Recent experimental data from BNL on the isovector J^PC =1^-+ exotic at 1.6 GeV in \rho\pi indicate the existence of a non-quarkonium state consistent with lattice gauge theory predictions. We discuss how further experiments can strengthen this conclusion. We show that the \rho\pi, \eta'\pi and \eta\pi couplings of t...
[ { "created": "Wed, 3 Sep 1997 18:53:24 GMT", "version": "v1" }, { "created": "Fri, 3 Oct 1997 15:34:05 GMT", "version": "v2" } ]
2014-11-17
[ [ "Page", "Philip R.", "" ] ]
Recent experimental data from BNL on the isovector J^PC =1^-+ exotic at 1.6 GeV in \rho\pi indicate the existence of a non-quarkonium state consistent with lattice gauge theory predictions. We discuss how further experiments can strengthen this conclusion. We show that the \rho\pi, \eta'\pi and \eta\pi couplings of thi...
1710.05562
Beatrix Hiesmayr C.
Javid Naikoo, Ashutosh Kumar Alok, Subhashish Banerjee, S. Uma Sankar, Giacomo Guarnieri, Christiane Schultze and Beatrix C. Hiesmayr
A quantum information theoretic quantity sensitive to the neutrino mass-hierarchy
6 pages, 5 figures
Nuclear Physics B 951, 114872 (2020)
10.1016/j.nuclphysb.2019.114872
null
hep-ph quant-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, we derive a quantum information theoretic quantity similar to the Leggett-Garg inequality, which can be defined in terms of neutrino transition probabilities. For the case of $\nu_\mu \to \nu_e/\bar{\nu}_\mu\to\bar{\nu}_e$ transitions, this quantity is sensitive to CP violating effects as well as the ne...
[ { "created": "Mon, 16 Oct 2017 08:38:08 GMT", "version": "v1" }, { "created": "Sun, 11 Aug 2019 11:54:09 GMT", "version": "v2" } ]
2020-01-22
[ [ "Naikoo", "Javid", "" ], [ "Alok", "Ashutosh Kumar", "" ], [ "Banerjee", "Subhashish", "" ], [ "Sankar", "S. Uma", "" ], [ "Guarnieri", "Giacomo", "" ], [ "Schultze", "Christiane", "" ], [ "Hiesmayr", "Beatrix ...
In this work, we derive a quantum information theoretic quantity similar to the Leggett-Garg inequality, which can be defined in terms of neutrino transition probabilities. For the case of $\nu_\mu \to \nu_e/\bar{\nu}_\mu\to\bar{\nu}_e$ transitions, this quantity is sensitive to CP violating effects as well as the neut...
2408.03106
Zbigniew Drogosz
Zbigniew Drogosz, Wojciech Florkowski, Mykhailo Hontarenko
Hybrid approach to perfect and dissipative spin hydrodynamics
39 pages, no figures
null
null
null
hep-ph nucl-th
http://creativecommons.org/licenses/by/4.0/
A hybrid framework of spin hydrodynamics is proposed that combines the results of kinetic theory for particles with spin 1/2 with the Israel-Stewart method of introducing non-equilibrium dynamics. The framework of kinetic theory is used to define the perfect-fluid description that conserves baryon number, energy, lin...
[ { "created": "Tue, 6 Aug 2024 11:27:27 GMT", "version": "v1" } ]
2024-08-07
[ [ "Drogosz", "Zbigniew", "" ], [ "Florkowski", "Wojciech", "" ], [ "Hontarenko", "Mykhailo", "" ] ]
A hybrid framework of spin hydrodynamics is proposed that combines the results of kinetic theory for particles with spin 1/2 with the Israel-Stewart method of introducing non-equilibrium dynamics. The framework of kinetic theory is used to define the perfect-fluid description that conserves baryon number, energy, linea...
hep-ph/0407041
Prasanta Das Kumar
Prasanta Kumar Das
Muon anomaly and a lower bound on higgs mass due to a light stabilized radion in the Randall-Sundrum model
Version to be appeared in IJMPA
IJMPA, Vol. 21, No. 26 (2006) 5205-5220
10.1142/S0217751X06033222
null
hep-ph
null
We investigate the Randall-Sundrum model with a light stabilized radion (required to fix the size of the extra dimension) in the light of muon anomalous magnetic moment $a_\mu [= \frac{(g - 2)}{2}]$. Using the recent data (obtained from the E821 experiment of the BNL collaboration) which differs by $2.6 \sigma$ from ...
[ { "created": "Sat, 3 Jul 2004 15:26:49 GMT", "version": "v1" }, { "created": "Thu, 12 May 2005 05:51:41 GMT", "version": "v2" }, { "created": "Wed, 5 Jul 2006 07:39:17 GMT", "version": "v3" }, { "created": "Fri, 1 Dec 2006 18:10:34 GMT", "version": "v4" } ]
2009-11-10
[ [ "Das", "Prasanta Kumar", "" ] ]
We investigate the Randall-Sundrum model with a light stabilized radion (required to fix the size of the extra dimension) in the light of muon anomalous magnetic moment $a_\mu [= \frac{(g - 2)}{2}]$. Using the recent data (obtained from the E821 experiment of the BNL collaboration) which differs by $2.6 \sigma$ from th...
1305.6464
Christoph Greub
H.M. Asatrian and C. Greub
Tree-level contribution to \bar{B} -> X_d gamma using fragmentation functions
13 pages, 4 figures
Phys. Rev. D 88, 074014 (2013)
10.1103/PhysRevD.88.074014
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We evaluate the most important tree-level contributions connected with the b-> u \bar{u} d gamma transition to the inclusive radiative decay \bar{B}-> X_d gamma using fragmentation functions. In this framework the singularities arising from collinear photon emission from the light quarks (u, \bar{u} and d) can be abs...
[ { "created": "Tue, 28 May 2013 12:17:43 GMT", "version": "v1" } ]
2013-10-30
[ [ "Asatrian", "H. M.", "" ], [ "Greub", "C.", "" ] ]
We evaluate the most important tree-level contributions connected with the b-> u \bar{u} d gamma transition to the inclusive radiative decay \bar{B}-> X_d gamma using fragmentation functions. In this framework the singularities arising from collinear photon emission from the light quarks (u, \bar{u} and d) can be absor...
hep-ph/0210053
Gilad Perez
Yuval Grossman and Gilad Perez
Realistic construction of split fermion models
15 pages, 5 figures, typos corrected, discussion on the implications of SM rare decay processes added, to appear in PRD
Phys.Rev.D67:015011,2003
10.1103/PhysRevD.67.015011
null
hep-ph
null
The Standard Model flavor structure can be explained in theories where the fermions are localized on different points in a compact extra dimension. We show that models with two bulk scalars compactified on an orbifold can produce such separations in a natural way. We study the shapes and overlaps of the fermion wave ...
[ { "created": "Thu, 3 Oct 2002 11:24:33 GMT", "version": "v1" }, { "created": "Mon, 21 Oct 2002 10:16:40 GMT", "version": "v2" }, { "created": "Tue, 26 Nov 2002 13:35:13 GMT", "version": "v3" } ]
2014-11-17
[ [ "Grossman", "Yuval", "" ], [ "Perez", "Gilad", "" ] ]
The Standard Model flavor structure can be explained in theories where the fermions are localized on different points in a compact extra dimension. We show that models with two bulk scalars compactified on an orbifold can produce such separations in a natural way. We study the shapes and overlaps of the fermion wave fu...
hep-ph/0406149
Emidio Gabrielli
Anindya Datta, Emidio Gabrielli, and Barbara Mele
Rotationally non-invariant aspects of scattering amplitudes with graviton exchange
Latex 13 pages, 1 eps figure, improved text
null
null
null
hep-ph hep-th
null
We consider the s-channel scattering of massive fermion or vector-boson pairs with equal helicities, mediated by a graviton in the linearized Einstein theory. We show that, although in general both spin-2 and spin-0 components are present in the exchanged graviton, there is a special set of reference frames where the...
[ { "created": "Mon, 14 Jun 2004 13:09:47 GMT", "version": "v1" }, { "created": "Wed, 18 Apr 2007 13:41:31 GMT", "version": "v2" } ]
2007-05-23
[ [ "Datta", "Anindya", "" ], [ "Gabrielli", "Emidio", "" ], [ "Mele", "Barbara", "" ] ]
We consider the s-channel scattering of massive fermion or vector-boson pairs with equal helicities, mediated by a graviton in the linearized Einstein theory. We show that, although in general both spin-2 and spin-0 components are present in the exchanged graviton, there is a special set of reference frames where the s...
hep-ph/9403312
null
Alon E. Faraggi
Proton stability in superstring derived models
IASSNS--HEP--94/18, 19 pages, uses PHYZZX
Nucl.Phys. B428 (1994) 111-125
10.1016/0550-3213(94)90194-5
null
hep-ph hep-th
null
I discuss the problem of proton decay, from dimension four, five and six operators, in superstring derived standard--like models. I classify the sectors that produce color triplet superfields which may generate proton decay from dimension five and six operators. I show that for two of these sectors there exist a uniq...
[ { "created": "Sat, 19 Mar 1994 18:21:02 GMT", "version": "v1" } ]
2009-10-28
[ [ "Faraggi", "Alon E.", "" ] ]
I discuss the problem of proton decay, from dimension four, five and six operators, in superstring derived standard--like models. I classify the sectors that produce color triplet superfields which may generate proton decay from dimension five and six operators. I show that for two of these sectors there exist a unique...
hep-ph/9808278
Toni Coarasa
J.A. Coarasa, Jaume Guasch, Joan Sola and Wolfgang Hollik
Top quark decay into charged Higgs boson in a general Two-Higgs-Doublet model: implications for the TEVATRON data
11 pages, LaTeX, 4 figs included using epsfig
Phys.Lett.B442:326-334,1998
10.1016/S0370-2693(98)01246-5
UAB-FT-450, KA-TP-14-1998
hep-ph
null
We analyze the unconventional top quark decay mode t -> H^+ b at the quantum level within the context of general Two-Higgs-Doublet models by including the full electroweak effects from the Yukawa couplings. The results are presented in the on-shell renormalization scheme with a physically well motivated definition of...
[ { "created": "Mon, 10 Aug 1998 15:13:00 GMT", "version": "v1" } ]
2010-01-28
[ [ "Coarasa", "J. A.", "" ], [ "Guasch", "Jaume", "" ], [ "Sola", "Joan", "" ], [ "Hollik", "Wolfgang", "" ] ]
We analyze the unconventional top quark decay mode t -> H^+ b at the quantum level within the context of general Two-Higgs-Doublet models by including the full electroweak effects from the Yukawa couplings. The results are presented in the on-shell renormalization scheme with a physically well motivated definition of t...
0906.0604
Gregory Moreau
Abdelhak Djouadi, Gregory Moreau, Francois Richard and Ritesh K. Singh
The forward-backward asymmetry of top quark production at the Tevatron in warped extra dimensional models
4 pages, 1 figure, published version
Phys.Rev.D82:071702,2010
10.1103/PhysRevD.82.071702
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The CDF and D0 experiments have reported on the measurement of the forward-backward asymmetry of top quark pair production at the Tevatron and the result is that it is more than 2 standard deviations above the predicted value in the Standard Model. This has to be added to the longstanding anomaly in the forward-backw...
[ { "created": "Tue, 2 Jun 2009 21:20:06 GMT", "version": "v1" }, { "created": "Sat, 21 May 2011 21:01:12 GMT", "version": "v2" } ]
2011-05-24
[ [ "Djouadi", "Abdelhak", "" ], [ "Moreau", "Gregory", "" ], [ "Richard", "Francois", "" ], [ "Singh", "Ritesh K.", "" ] ]
The CDF and D0 experiments have reported on the measurement of the forward-backward asymmetry of top quark pair production at the Tevatron and the result is that it is more than 2 standard deviations above the predicted value in the Standard Model. This has to be added to the longstanding anomaly in the forward-backwar...
0810.5281
Tadeusz Wibig
Tadeusz Wibig
Ultra High-Energy Interaction of CR protons
to be published in Proc. 21st ECRS, Kosice, 2008
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The recent Auger results suggest that although coincidences of arrival directions with 'nearby' AGN and HiRes discovery of the GZK cut-off indicate protons, the measured longitudinal propagation characteristics indicate heavy nuclei, if the conventional interaction model is correct. Something has to change! Our own v...
[ { "created": "Wed, 29 Oct 2008 14:02:51 GMT", "version": "v1" } ]
2008-10-30
[ [ "Wibig", "Tadeusz", "" ] ]
The recent Auger results suggest that although coincidences of arrival directions with 'nearby' AGN and HiRes discovery of the GZK cut-off indicate protons, the measured longitudinal propagation characteristics indicate heavy nuclei, if the conventional interaction model is correct. Something has to change! Our own vie...
hep-ph/9506345
Warren Perkins
Warren B. Perkins
Baryon Number Violating Transitions in String Backgrounds
27 pages. Texing problems fixed
Nucl.Phys. B449 (1995) 265-288
10.1016/0550-3213(95)00297-6
SWAT80
hep-ph
null
We construct field configurations that interpolate between string background states of differing baryon number. Using these configurations we estimate the effect of the background fields on the energy barrier separating different vacua. In the background of a superconducting GUT string the energy barrier is increased...
[ { "created": "Fri, 16 Jun 1995 11:15:13 GMT", "version": "v1" }, { "created": "Wed, 21 Jun 1995 08:38:03 GMT", "version": "v2" } ]
2009-10-28
[ [ "Perkins", "Warren B.", "" ] ]
We construct field configurations that interpolate between string background states of differing baryon number. Using these configurations we estimate the effect of the background fields on the energy barrier separating different vacua. In the background of a superconducting GUT string the energy barrier is increased, ...
hep-ph/0301146
Magno Machado
C. Brenner Mariotto, M.B. Gay Ducati, M.V.T. Machado (Rio Grande do Sul U.)
Aspects of the Heavy-Quark Photoproduction in the Semihard Approach
4 pages, 1 figure. Contribution to the Workshop on Low x Physics, Antwerpen (Belgium), 16-19 Sept. 2002, and to the Brazilian National Meeting on Particle Physics and Fields, Aguas de Lindoia (Brazil), 15-19 Oct. 2002
null
null
null
hep-ph
null
In this contribution we report on the calculations of heavy-quark photoproduction using the semihard approach, emphasizing the results obtained with the phenomenological saturation model.
[ { "created": "Fri, 17 Jan 2003 21:26:44 GMT", "version": "v1" } ]
2007-05-23
[ [ "Mariotto", "C. Brenner", "", "Rio Grande do\n Sul U." ], [ "Ducati", "M. B. Gay", "", "Rio Grande do\n Sul U." ], [ "Machado", "M. V. T.", "", "Rio Grande do\n Sul U." ] ]
In this contribution we report on the calculations of heavy-quark photoproduction using the semihard approach, emphasizing the results obtained with the phenomenological saturation model.
hep-ph/9502326
Hua-Bin Tang
Hua-Bin Tang and R. J. Furnstahl
The Gluon Condensate and Running Coupling of QCD
10 pages, RevTex, No figures
null
null
OSU--95-101
hep-ph nucl-th
null
An expression for the photon condensate in quantum electrodynamics is presented and generalized to deduce a simple relation between the gluon condensate and the running coupling constant of quantum chromodynamics (QCD). Ambiguities in defining the condensates are discussed. The values of the gluon condensate from som...
[ { "created": "Thu, 16 Feb 1995 16:34:26 GMT", "version": "v1" } ]
2016-09-01
[ [ "Tang", "Hua-Bin", "" ], [ "Furnstahl", "R. J.", "" ] ]
An expression for the photon condensate in quantum electrodynamics is presented and generalized to deduce a simple relation between the gluon condensate and the running coupling constant of quantum chromodynamics (QCD). Ambiguities in defining the condensates are discussed. The values of the gluon condensate from some ...
1805.08189
Carlo Marzo
Sean Fraser, Carlo Marzo, Luca Marzola, Martti Raidal and Christian Spethmann
Towards a viable scalar interpretation of $R_{D^{(*)}}$
15 pages, 12 figures. v2: References updated, larger captions for most of the plots. Version to appear on PRD
Phys. Rev. D 98, 035016 (2018)
10.1103/PhysRevD.98.035016
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recent measurements of semileptonic B-meson decays seemingly imply violations of lepton flavor universality beyond the Standard Model predictions. With three-level explanations based on extended Higgs sectors being strongly challenged by the measurements of the $B_c^-$ lifetime, new theories invoking leptoquark or ve...
[ { "created": "Mon, 21 May 2018 17:22:19 GMT", "version": "v1" }, { "created": "Mon, 27 Aug 2018 08:50:02 GMT", "version": "v2" } ]
2018-08-28
[ [ "Fraser", "Sean", "" ], [ "Marzo", "Carlo", "" ], [ "Marzola", "Luca", "" ], [ "Raidal", "Martti", "" ], [ "Spethmann", "Christian", "" ] ]
Recent measurements of semileptonic B-meson decays seemingly imply violations of lepton flavor universality beyond the Standard Model predictions. With three-level explanations based on extended Higgs sectors being strongly challenged by the measurements of the $B_c^-$ lifetime, new theories invoking leptoquark or vect...
hep-ph/9211272
null
G.A. Ladinsky and C.-P. Yuan
A Probe of New Physics in Top Quark Pair Production at $e^-e^+$ Colliders
24 pages in TeXsis (figures available upon request) (revised July 1993)
Phys.Rev.D49:4415-4426,1994
10.1103/PhysRevD.49.4415
MSUTH-92/07
hep-ph
null
We describe how to probe new physics through examination of the form factors describing the Ztt couplings via the scattering process e^-e^+->t+tbar. We focus on experimental methods on how the top quark momentum can be determined and show how this can be applied to select polarized samples of $t\bar{t}$ pairs through...
[ { "created": "Wed, 18 Nov 1992 23:52:36 GMT", "version": "v1" }, { "created": "Fri, 3 Dec 1993 16:18:20 GMT", "version": "v2" } ]
2010-11-01
[ [ "Ladinsky", "G. A.", "" ], [ "Yuan", "C. -P.", "" ] ]
We describe how to probe new physics through examination of the form factors describing the Ztt couplings via the scattering process e^-e^+->t+tbar. We focus on experimental methods on how the top quark momentum can be determined and show how this can be applied to select polarized samples of $t\bar{t}$ pairs through t...
0903.4715
Sergey Gevorkyan
S. Gevorkyan, A. Gasparian, L. Gan, I. Larin, M. Khandaker
Photoproduction of Pseudoscalar Mesons off Nuclei at Forward Angles
22 pages, 8 figures
Phys.Rev.C80:055201,2009
10.1103/PhysRevC.80.055201
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
With the advent of new photon tagging facilities and novel experimental technologies it has become possible to perform photoproduction cross section measurements of pseudoscalar mesons on nuclei with a percent level accuracy. The extraction of the radiative decay widths from these measurements at forward angles is do...
[ { "created": "Thu, 26 Mar 2009 23:00:07 GMT", "version": "v1" } ]
2009-11-10
[ [ "Gevorkyan", "S.", "" ], [ "Gasparian", "A.", "" ], [ "Gan", "L.", "" ], [ "Larin", "I.", "" ], [ "Khandaker", "M.", "" ] ]
With the advent of new photon tagging facilities and novel experimental technologies it has become possible to perform photoproduction cross section measurements of pseudoscalar mesons on nuclei with a percent level accuracy. The extraction of the radiative decay widths from these measurements at forward angles is done...
hep-ph/0502234
David Atwood
David Atwood, Shaouly Bar-Shalom, Amarjit Soni
Neutrino masses, mixing and leptogenesis in a two Higgs doublet model for the third generation
2 pages, 2 figures. Important changes made in v2: 1) improved presentation of leptogenesis and 2) a more elaborate discussion on the assumed texture zeros in the neutrino Yukawa sector. Important changes made in v3: minor changes added to emphasize that in our model the CP-asymmetry in the decays of the lightes...
Phys.Lett. B635 (2006) 112-117
10.1016/j.physletb.2006.02.033
BNL-HET-05/1
hep-ph
null
We examine neutrino oscillations in a two Higgs doublet model (2HDM) in which the second doublet couples only to the third generation right-handed up-fermions, i.e., to t_R and to N_3 which is the heaviest right-handed Majorana neutrino. The inherently large tan(beta) of this model can naturally account for the large...
[ { "created": "Fri, 25 Feb 2005 19:55:30 GMT", "version": "v1" }, { "created": "Sun, 18 Sep 2005 20:49:52 GMT", "version": "v2" }, { "created": "Wed, 8 Feb 2006 18:39:51 GMT", "version": "v3" } ]
2009-11-11
[ [ "Atwood", "David", "" ], [ "Bar-Shalom", "Shaouly", "" ], [ "Soni", "Amarjit", "" ] ]
We examine neutrino oscillations in a two Higgs doublet model (2HDM) in which the second doublet couples only to the third generation right-handed up-fermions, i.e., to t_R and to N_3 which is the heaviest right-handed Majorana neutrino. The inherently large tan(beta) of this model can naturally account for the large t...
hep-ph/0003132
Dan-Olof Riska
D.O. Riska
Mesonic Anapole Form Factors of the Nucleons
Figure 8 corrected
Nucl.Phys. A678 (2000) 79-109
10.1016/S0375-9474(00)00315-8
null
hep-ph
null
The chiral quark model posits pseudoscalar and vector meson couplings to constituent quarks. The parity violating meson-quark couplings lead to anapole moments and form factors of the nucleons. These arise both as parity violating meson loop fluctuations as well as exchange currents and polarization currents that are...
[ { "created": "Tue, 14 Mar 2000 19:00:11 GMT", "version": "v1" }, { "created": "Thu, 16 Mar 2000 13:42:55 GMT", "version": "v2" } ]
2009-10-31
[ [ "Riska", "D. O.", "" ] ]
The chiral quark model posits pseudoscalar and vector meson couplings to constituent quarks. The parity violating meson-quark couplings lead to anapole moments and form factors of the nucleons. These arise both as parity violating meson loop fluctuations as well as exchange currents and polarization currents that are i...
1603.02145
Jihn E. Kim
Jihn E. Kim
Couplings between QCD axion and photon from string compactification
8 pages, 2 figures
Phys. Lett. B759 (2016) 149-153
10.1016/j.physletb.2016.05.067
null
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The QCD axion couplings of various invisible axion models are presented. In particular, the exact global symmetry U(1)$_{\rm PQ}$ in the superpotential is possible for the anomalous U(1) from string compactification, broken only by the gauge anomalies at one loop level, and is shown to have the resultant invisible ax...
[ { "created": "Mon, 7 Mar 2016 16:39:19 GMT", "version": "v1" }, { "created": "Tue, 8 Mar 2016 12:22:52 GMT", "version": "v2" } ]
2016-06-03
[ [ "Kim", "Jihn E.", "" ] ]
The QCD axion couplings of various invisible axion models are presented. In particular, the exact global symmetry U(1)$_{\rm PQ}$ in the superpotential is possible for the anomalous U(1) from string compactification, broken only by the gauge anomalies at one loop level, and is shown to have the resultant invisible axio...
hep-ph/0003104
E. Rodriguez-Jauregui
A. Mondragon and E. Rodriguez-Jauregui
CP violating phase and quark mixing angles from flavour permutational symmetry breaking
30 pages, Proceedings of the XXXIII Symposium on Nuclear Physics, Oaxtepec, Morelos, Mexico, 2000
Rev.Mex.Fis. 46 (2000) 5-22
null
null
hep-ph
null
The phase equivalence of the theoretical quark mixing matrix ${\bf V}^{th}$ derived from the breaking of the flavour permutational symmetry and the phenomenological parametrizations ${\bf V}^{PDG}$ and ${\bf V}^{KM}$ is explicitly exhibited. From here, we derive exact explicit expressions for the three mixing angles ...
[ { "created": "Fri, 10 Mar 2000 18:38:54 GMT", "version": "v1" } ]
2016-09-06
[ [ "Mondragon", "A.", "" ], [ "Rodriguez-Jauregui", "E.", "" ] ]
The phase equivalence of the theoretical quark mixing matrix ${\bf V}^{th}$ derived from the breaking of the flavour permutational symmetry and the phenomenological parametrizations ${\bf V}^{PDG}$ and ${\bf V}^{KM}$ is explicitly exhibited. From here, we derive exact explicit expressions for the three mixing angles an...
hep-ph/0204082
Di Qing
Bo-Qiang Ma, Di Qing, and Ivan Schmidt
Axial vector form factor of nucleons in a light-cone diquark model
8 pages, Revtex4, 1 figure, version to be published in Phys. Rev. C
Phys.Rev. C66 (2002) 048201
10.1103/PhysRevC.66.048201
null
hep-ph nucl-th
null
The nucleon axial vector form factor is investigated in a light-cone quark spectator diquark model, in which Melosh rotations are applied to both the quark and vector diquark. It is found that this model gives a very good description of available experimental data and the results have very little dependence on the pa...
[ { "created": "Sun, 7 Apr 2002 19:45:17 GMT", "version": "v1" }, { "created": "Sun, 8 Sep 2002 10:49:23 GMT", "version": "v2" } ]
2009-11-07
[ [ "Ma", "Bo-Qiang", "" ], [ "Qing", "Di", "" ], [ "Schmidt", "Ivan", "" ] ]
The nucleon axial vector form factor is investigated in a light-cone quark spectator diquark model, in which Melosh rotations are applied to both the quark and vector diquark. It is found that this model gives a very good description of available experimental data and the results have very little dependence on the para...
2006.05985
Jusak Tandean
Jhih-Ying Su, Jusak Tandean
Kaon decays shedding light on massless dark photons
11 pages, no figure, slightly revised, references added, matches publication
Eur. Phys. J. C 80, 824 (2020)
10.1140/epjc/s10052-020-8338-3
NCTS-PH/2008
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore kaon decays with missing energy carried away by a massless dark photon, $\bar\gamma$, assumed to have flavor-changing dipole-type couplings to the $d$ and $s$ quarks. We consider in particular the neutral-kaon modes $K_L\to\gamma\bar\gamma$ and $K_L\to\pi^0\gamma\bar\gamma$ and their $K_S$ counterparts, as...
[ { "created": "Wed, 10 Jun 2020 17:56:35 GMT", "version": "v1" }, { "created": "Mon, 7 Sep 2020 06:44:28 GMT", "version": "v2" } ]
2020-09-08
[ [ "Su", "Jhih-Ying", "" ], [ "Tandean", "Jusak", "" ] ]
We explore kaon decays with missing energy carried away by a massless dark photon, $\bar\gamma$, assumed to have flavor-changing dipole-type couplings to the $d$ and $s$ quarks. We consider in particular the neutral-kaon modes $K_L\to\gamma\bar\gamma$ and $K_L\to\pi^0\gamma\bar\gamma$ and their $K_S$ counterparts, as w...
1809.05728
Shahin Atashbar Tehrani
Javad Sheibani, Abolfazl Mirjalili, S. Atashbar Tehrani
EMC effect in the next-to-leading order approximation based on the Laplace transformation
12 Pages,11 figures
Phys. Rev. C 98, 045211 (2018)
10.1103/PhysRevC.98.045211
Phys. Rev. C 98, 045211 (2018)
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this article, using Laplace transformation , an analytical solution is obtained for the DGLAP evolution equation at the next-to-leading order of perturbative QCD. The technique is also employed to extract, in the Laplace $s$-space, an analytical solution for the nuclear structure function, $F_2^A(x, Q^2)$. Firstly...
[ { "created": "Sat, 15 Sep 2018 15:14:21 GMT", "version": "v1" }, { "created": "Thu, 25 Oct 2018 14:26:39 GMT", "version": "v2" } ]
2018-10-31
[ [ "Sheibani", "Javad", "" ], [ "Mirjalili", "Abolfazl", "" ], [ "Tehrani", "S. Atashbar", "" ] ]
In this article, using Laplace transformation , an analytical solution is obtained for the DGLAP evolution equation at the next-to-leading order of perturbative QCD. The technique is also employed to extract, in the Laplace $s$-space, an analytical solution for the nuclear structure function, $F_2^A(x, Q^2)$. Firstly, ...
1003.5812
Massimo Blasone Dr
Massimo Blasone, Marco Di Mauro and Giuseppe Vitiello
Non-abelian gauge structure in neutrino mixing
13 pages, 2 figures
Phys.Lett.B697:238-245,2011
10.1016/j.physletb.2011.01.041
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the existence of a non-abelian gauge structure associated with flavor mixing. In the specific case of two flavor mixing of Dirac neutrino fields, we show that this reformulation allows to define flavor neutrino states which preserve the Poincar\'e structure. Phenomenological consequences of our analysis ar...
[ { "created": "Tue, 30 Mar 2010 13:10:38 GMT", "version": "v1" } ]
2011-02-21
[ [ "Blasone", "Massimo", "" ], [ "Di Mauro", "Marco", "" ], [ "Vitiello", "Giuseppe", "" ] ]
We discuss the existence of a non-abelian gauge structure associated with flavor mixing. In the specific case of two flavor mixing of Dirac neutrino fields, we show that this reformulation allows to define flavor neutrino states which preserve the Poincar\'e structure. Phenomenological consequences of our analysis are ...
1212.2059
Cyrille Marquet
C. Marquet, C. Royon, M. Trzebinski and R. Zlebcik
Gaps between jets in double-Pomeron-exchange processes at the LHC
8 pages, 5 figures, version to appear in PRD
Phys. Rev. D 87 (2013) 034010
10.1103/PhysRevD.87.034010
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The possibility to measure jet-gap-jet final states in double-Pomeron-exchange events at the LHC is presented. In the context of the ATLAS experiment with additional forward physics detectors, cross sections for different experimental settings and gap definitions are estimated. This is done in the framework of the Fo...
[ { "created": "Mon, 10 Dec 2012 13:43:38 GMT", "version": "v1" }, { "created": "Tue, 26 Feb 2013 14:04:13 GMT", "version": "v2" } ]
2016-06-06
[ [ "Marquet", "C.", "" ], [ "Royon", "C.", "" ], [ "Trzebinski", "M.", "" ], [ "Zlebcik", "R.", "" ] ]
The possibility to measure jet-gap-jet final states in double-Pomeron-exchange events at the LHC is presented. In the context of the ATLAS experiment with additional forward physics detectors, cross sections for different experimental settings and gap definitions are estimated. This is done in the framework of the Forw...
hep-ph/0607005
Agam Jha
S.S. Singh and Agam K. Jha
Dilepton Production In Non-equilibriated Quark Gluon Plasma
Revtex 3 pages, 4 figures. To be submitted in Journal of Physics G
null
null
null
hep-ph
null
A model of cut-off momentum distribution functions in a Quark Gluon Plasma with finite baryon chemical potential is discussed. This produces a quark gluon plasma signature in Ultra Relativistic Nuclear Collisions with a specific structure of the dilepton spectrum in the transverse momentum region of $(1-4)~GeV$ and t...
[ { "created": "Sat, 1 Jul 2006 07:47:03 GMT", "version": "v1" } ]
2007-05-23
[ [ "Singh", "S. S.", "" ], [ "Jha", "Agam K.", "" ] ]
A model of cut-off momentum distribution functions in a Quark Gluon Plasma with finite baryon chemical potential is discussed. This produces a quark gluon plasma signature in Ultra Relativistic Nuclear Collisions with a specific structure of the dilepton spectrum in the transverse momentum region of $(1-4)~GeV$ and the...
hep-ph/9606355
null
Andree Blotz and Edward Shuryak (SUNY Stony Brook)
Pion electromagnetic formfactor in the instanton vacuum
35 pages, latex, revtex, epsfig, 8 color figures, 2 tables
Phys.Rev.D55:4055-4065,1997
10.1103/PhysRevD.55.4055
SUNY-NTG-96-9
hep-ph
null
We have calculated the 3-point correlation function for the electromagnetic interaction of the pion in an ensembles of instantons and anti-instantons, modelling the QCD vacuum. The results are well described by a pion pole and the pion formfactor is extracted, nicely following a standard monopole fit. The experimenta...
[ { "created": "Tue, 18 Jun 1996 03:20:00 GMT", "version": "v1" } ]
2014-11-17
[ [ "Blotz", "Andree", "", "SUNY Stony Brook" ], [ "Shuryak", "Edward", "", "SUNY Stony Brook" ] ]
We have calculated the 3-point correlation function for the electromagnetic interaction of the pion in an ensembles of instantons and anti-instantons, modelling the QCD vacuum. The results are well described by a pion pole and the pion formfactor is extracted, nicely following a standard monopole fit. The experimental ...
0806.2213
Elsen Veli Veliev
Elsen Veli Veliev, Takhmassib M. Aliev
Thermal QCD Sum Rules for sigma(600) Meson
10 pages, 2 figures
J.Phys.G35:125002,2008
10.1088/0954-3899/35/12/125002
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the present work, the temperature dependence of the scalar mesons parameters is investigated in the framework of thermal QCD sum rules. We calculate sigma-pole and the non-resonant two-pion continuum contributions to the spectral density. Taking into account additional operators appearing at finite temperature, th...
[ { "created": "Fri, 13 Jun 2008 09:28:26 GMT", "version": "v1" } ]
2008-11-26
[ [ "Veliev", "Elsen Veli", "" ], [ "Aliev", "Takhmassib M.", "" ] ]
In the present work, the temperature dependence of the scalar mesons parameters is investigated in the framework of thermal QCD sum rules. We calculate sigma-pole and the non-resonant two-pion continuum contributions to the spectral density. Taking into account additional operators appearing at finite temperature, the ...
hep-ph/9209278
null
M. Gronau and S. Wakaizumi
On Testing V-A in Lambda_b Decays
(6 pages, PHYZZX, 1 figure, available upon request), SLAC-PUB-5892
Phys.Rev. D47 (1993) 1262-1263
10.1103/PhysRevD.47.1262
null
hep-ph
null
We comment on a recent suggestion by Amundson, Rosner, Worah and Wise to test the chirality of the $b$-quark decay coupling via polarized $\Lambda_b$ baryons produced in $e^+e^-\rightarrow Z\rightarrow \Lambda_b +X$. We study the effect of contributions from an amplitude in which a right-handed $b$ to $c$ current cou...
[ { "created": "Thu, 24 Sep 1992 21:45:00 GMT", "version": "v1" } ]
2009-10-22
[ [ "Gronau", "M.", "" ], [ "Wakaizumi", "S.", "" ] ]
We comment on a recent suggestion by Amundson, Rosner, Worah and Wise to test the chirality of the $b$-quark decay coupling via polarized $\Lambda_b$ baryons produced in $e^+e^-\rightarrow Z\rightarrow \Lambda_b +X$. We study the effect of contributions from an amplitude in which a right-handed $b$ to $c$ current coupl...
1710.07609
A. F. W. van Hameren
A. van Hameren
Calculating off-shell one-loop amplitudes for $k_T$-dependent factorization: a proof of concept
50 pages, minor corrections
null
null
IFJPAN-IV-2017-21
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A method to define and calculate one-loop amplitudes with an off-shell space-like, or $k_T$-dependent, gluon is presented. It introduces a practical regularization to deal with the divergencies that appear due to linear denominators, and can be applied to arbitarary partonic scattering processes.
[ { "created": "Fri, 20 Oct 2017 17:11:49 GMT", "version": "v1" }, { "created": "Mon, 16 Jul 2018 15:34:35 GMT", "version": "v2" }, { "created": "Sun, 30 Jan 2022 17:06:49 GMT", "version": "v3" } ]
2022-02-01
[ [ "van Hameren", "A.", "" ] ]
A method to define and calculate one-loop amplitudes with an off-shell space-like, or $k_T$-dependent, gluon is presented. It introduces a practical regularization to deal with the divergencies that appear due to linear denominators, and can be applied to arbitarary partonic scattering processes.
hep-ph/0607074
Manmohan Gupta
Monika Randhawa, Gulsheen Ahuja, Manmohan Gupta
Implications of Fritzsch-like lepton mass matrices
13 pages, 4 figures. Small changes to the previous version and a new reference added
Phys.Lett.B643:175-181,2006
10.1016/j.physletb.2006.10.034
null
hep-ph
null
Using seesaw mechanism and Fritzsch-like texture 6 zero and 5 zero lepton Dirac mass matrices, detailed predictions for cases pertaining to normal/inverted hierarchy as well as degenerate scenario of neutrino masses have been carried out. All the cases considered here pertaining to inverted hierarchy and degenerate s...
[ { "created": "Fri, 7 Jul 2006 05:08:31 GMT", "version": "v1" }, { "created": "Fri, 15 Sep 2006 07:24:46 GMT", "version": "v2" } ]
2008-11-26
[ [ "Randhawa", "Monika", "" ], [ "Ahuja", "Gulsheen", "" ], [ "Gupta", "Manmohan", "" ] ]
Using seesaw mechanism and Fritzsch-like texture 6 zero and 5 zero lepton Dirac mass matrices, detailed predictions for cases pertaining to normal/inverted hierarchy as well as degenerate scenario of neutrino masses have been carried out. All the cases considered here pertaining to inverted hierarchy and degenerate sce...
2302.07210
Anton Kuncinas
A. Kun\v{c}inas, O. M. Ogreid, P. Osland, M. N. Rebelo
Complex $S_3$-symmetric 3HDM
42 pages, 2 figures, V2: version consistent with JHEP
null
10.1007/JHEP07(2023)013
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
CP violation plays a very important role in nature with implications both for Particle Physics and for Cosmology. Accounting for the observed matter anti-matter asymmetry of the Universe requires the existence of new sources of CP violation beyond the Standard Model. In models with an extended scalar sector CP violat...
[ { "created": "Tue, 14 Feb 2023 17:32:29 GMT", "version": "v1" }, { "created": "Mon, 10 Jul 2023 10:05:55 GMT", "version": "v2" } ]
2023-07-11
[ [ "Kunčinas", "A.", "" ], [ "Ogreid", "O. M.", "" ], [ "Osland", "P.", "" ], [ "Rebelo", "M. N.", "" ] ]
CP violation plays a very important role in nature with implications both for Particle Physics and for Cosmology. Accounting for the observed matter anti-matter asymmetry of the Universe requires the existence of new sources of CP violation beyond the Standard Model. In models with an extended scalar sector CP violatio...
hep-ph/0002225
R. D. Peccei
R. D. Peccei
Exact and Broken Symmetries in Particle Physics
Lectures given at the fifth Vietnam School of Physics, Hanoi, December 28, 1998- 9 January, 1999. To appear in the Proceedings of the School
null
null
null
hep-ph
null
In these lectures, I discuss the role of symmetries in particle physics. I begin by discussing global symmetries and show that they can be realized differently in nature, depending on whether or not the vacuum state is left invariant by the symmetry. I introduce next the notion of local symmetries and show how these ...
[ { "created": "Mon, 21 Feb 2000 22:40:53 GMT", "version": "v1" } ]
2007-05-23
[ [ "Peccei", "R. D.", "" ] ]
In these lectures, I discuss the role of symmetries in particle physics. I begin by discussing global symmetries and show that they can be realized differently in nature, depending on whether or not the vacuum state is left invariant by the symmetry. I introduce next the notion of local symmetries and show how these sy...
hep-ph/0503093
Patrick J. Fox
Linda Carpenter, Patrick J. Fox, and David E. Kaplan
The NMSSM, Anomaly Mediation and a Dirac Bino
20 pages, 1 figure
null
null
SCIPP-2004/18
hep-ph
null
We introduce a new model of supersymmetry breaking dominated by anomaly mediation. It has a viable spectrum, successful electroweak symmetry breaking, solves the mu-problem and maintains the anomaly-mediated form for soft-masses down to low energies thus solving the flavor problem. The model consists of the minimal s...
[ { "created": "Thu, 10 Mar 2005 19:37:17 GMT", "version": "v1" } ]
2007-05-23
[ [ "Carpenter", "Linda", "" ], [ "Fox", "Patrick J.", "" ], [ "Kaplan", "David E.", "" ] ]
We introduce a new model of supersymmetry breaking dominated by anomaly mediation. It has a viable spectrum, successful electroweak symmetry breaking, solves the mu-problem and maintains the anomaly-mediated form for soft-masses down to low energies thus solving the flavor problem. The model consists of the minimal sup...
hep-ph/0402156
Gilberto Tavares-Velasco
M. A. Perez, G. Tavares-Velasco and J. J. Toscano
Two-body $Z'$ decays in the minimal 331 model
14 pages, 3 figures, submitted to Physical Review D
Phys.Rev.D69:115004,2004
10.1103/PhysRevD.69.115004
null
hep-ph
null
The two-body decays of the extra neutral boson Z_2 predicted by the minimal 331 model are analyzed. At the three-level it can decay into standard model particles as well as exotic quarks and the new gauge bosons predicted by the model. The decays into a lepton pair are strongly suppressed, with $Br(Z_2 --> l^+l^-) ~ ...
[ { "created": "Sat, 14 Feb 2004 22:23:54 GMT", "version": "v1" } ]
2011-03-23
[ [ "Perez", "M. A.", "" ], [ "Tavares-Velasco", "G.", "" ], [ "Toscano", "J. J.", "" ] ]
The two-body decays of the extra neutral boson Z_2 predicted by the minimal 331 model are analyzed. At the three-level it can decay into standard model particles as well as exotic quarks and the new gauge bosons predicted by the model. The decays into a lepton pair are strongly suppressed, with $Br(Z_2 --> l^+l^-) ~ 10...
1903.06100
Jan Hajer
Marco Drewes, Jan Hajer
Heavy Neutrinos in displaced vertex searches at the LHC and HL-LHC
24 pages, 9 figures, 1 table; published version
J. High Energ. Phys. (2020) 2020: 70
10.1007/JHEP02(2020)070
CP3-19-11
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the sensitivity of displaced vertex searches for heavy neutrinos produced in W boson decays in the LHC detectors ATLAS, CMS and LHCb. We also propose a new search that uses the muon chambers to detect muons from heavy neutrino decays outside the tracker. The sensitivity estimates are based on benchmark model...
[ { "created": "Thu, 14 Mar 2019 16:16:45 GMT", "version": "v1" }, { "created": "Sat, 25 Apr 2020 13:03:43 GMT", "version": "v2" } ]
2020-04-28
[ [ "Drewes", "Marco", "" ], [ "Hajer", "Jan", "" ] ]
We study the sensitivity of displaced vertex searches for heavy neutrinos produced in W boson decays in the LHC detectors ATLAS, CMS and LHCb. We also propose a new search that uses the muon chambers to detect muons from heavy neutrino decays outside the tracker. The sensitivity estimates are based on benchmark models ...
1903.04976
Oleg Selyugin
O.V. Selyugin
New feature in the differential cross sections at $13$ TeV be measured at the LHC
4 pages, 9 figures, minor changing, Journal version
Phy.Lett. B 797, (2019) 134870
10.1016/j.physletb.2019.134870
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Analysis of $d\sigma/dt$ of the TOTEM Collaboration data, carried out without model assumptions, showed the existence of a new effect in the behavior of the hadron scattering amplitude at a small momentum transfer at a high confidence level. The quantitatively description of the data in the framework of the HEGS mode...
[ { "created": "Tue, 12 Mar 2019 15:07:08 GMT", "version": "v1" }, { "created": "Mon, 22 Apr 2019 18:26:36 GMT", "version": "v2" }, { "created": "Fri, 17 Jan 2020 10:27:51 GMT", "version": "v3" } ]
2020-01-20
[ [ "Selyugin", "O. V.", "" ] ]
Analysis of $d\sigma/dt$ of the TOTEM Collaboration data, carried out without model assumptions, showed the existence of a new effect in the behavior of the hadron scattering amplitude at a small momentum transfer at a high confidence level. The quantitatively description of the data in the framework of the HEGS model ...
hep-ph/0501088
Arif Shoshi
A.H.Mueller, A.I.Shoshi and S.M.H.Wong
Extension of the JIMWLK Equation in the Low Gluon Density Region
23 pages, 1 figure, corrected typos, corrected references, published version
Nucl.Phys. B715 (2005) 440-460
10.1016/j.nuclphysb.2005.03.002
CU-TP-1125
hep-ph
null
It has recently been realized that the Balitsky-JIMWLK equations have serious shortcomings as equations to be used in small-x evolution near the unitarity limit. A recent generalization of the Balitsky equations has been given which corrects these shortcomings. In this paper we present an equivalent discussion, but i...
[ { "created": "Tue, 11 Jan 2005 17:22:23 GMT", "version": "v1" }, { "created": "Thu, 13 Jan 2005 16:39:48 GMT", "version": "v2" }, { "created": "Wed, 4 May 2005 01:30:15 GMT", "version": "v3" } ]
2009-11-11
[ [ "Mueller", "A. H.", "" ], [ "Shoshi", "A. I.", "" ], [ "Wong", "S. M. H.", "" ] ]
It has recently been realized that the Balitsky-JIMWLK equations have serious shortcomings as equations to be used in small-x evolution near the unitarity limit. A recent generalization of the Balitsky equations has been given which corrects these shortcomings. In this paper we present an equivalent discussion, but in ...
1609.03450
Jordi Salvado
Jordi Salvado, Olga Mena, Sergio Palomares-Ruiz, Nuria Rius
Non-standard interactions with high-energy atmospheric neutrinos at IceCube
18 pages, 8 figures
null
10.1007/JHEP01(2017)141
IFIC/16-64
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Non-standard interactions in the propagation of neutrinos in matter can lead to significant deviations from expectations within the standard neutrino oscillation framework and atmospheric neutrino detectors have been considered to set constraints. However, most previous works have focused on relatively low-energy atm...
[ { "created": "Mon, 12 Sep 2016 15:39:58 GMT", "version": "v1" }, { "created": "Fri, 23 Sep 2016 17:14:10 GMT", "version": "v2" } ]
2017-03-08
[ [ "Salvado", "Jordi", "" ], [ "Mena", "Olga", "" ], [ "Palomares-Ruiz", "Sergio", "" ], [ "Rius", "Nuria", "" ] ]
Non-standard interactions in the propagation of neutrinos in matter can lead to significant deviations from expectations within the standard neutrino oscillation framework and atmospheric neutrino detectors have been considered to set constraints. However, most previous works have focused on relatively low-energy atmos...
hep-ph/9712350
Rogerio Rosenfeld
H.G. Dosch (U.Heidelberg), E. Ferreira (UFRJ-Brazil), M. Nielsen (USP-Brazil) and R. Rosenfeld (IFT-Brazil)
QCD Sum Rules Calculation of Heavy $\Lambda$ Semileptonic Decay
Revised version. Title changed. 11 pages (RevTex), 4 PS figures
Phys.Lett.B431:173-178,1998
10.1016/S0370-2693(98)00566-8
IFT-P.003/98
hep-ph
null
We set up sum rules for heavy lambda decays in a full QCD calculation which in the heavy quark mass limit incorporates the symmetries of heavy quark effective theory. For the semileptonic $\La_c$ decay we obtain a reasonable agreement with experiment. For the $\La_b$ semileptonic decay we find at the zero recoil poin...
[ { "created": "Thu, 11 Dec 1997 17:44:32 GMT", "version": "v1" }, { "created": "Mon, 29 Jun 1998 12:27:10 GMT", "version": "v2" } ]
2008-11-26
[ [ "Dosch", "H. G.", "", "U.Heidelberg" ], [ "Ferreira", "E.", "", "UFRJ-Brazil" ], [ "Nielsen", "M.", "", "USP-Brazil" ], [ "Rosenfeld", "R.", "", "IFT-Brazil" ] ]
We set up sum rules for heavy lambda decays in a full QCD calculation which in the heavy quark mass limit incorporates the symmetries of heavy quark effective theory. For the semileptonic $\La_c$ decay we obtain a reasonable agreement with experiment. For the $\La_b$ semileptonic decay we find at the zero recoil point ...
2105.14027
Bryan Ostdiek
T. Aarrestad, M. van Beekveld, M. Bona, A. Boveia, S. Caron, J. Davies, A. De Simone, C. Doglioni, J.M. Duarte, A. Farbin, H. Gupta, L. Hendriks, L. Heinrich, J. Howarth, P. Jawahar, A. Jueid, J. Lastow, A. Leinweber, J. Mamuzic, E. Mer\'enyi, A. Morandini, P. Moskvitina, C. Nellist, J. Ngadiuba, B. Ostdiek, M....
The Dark Machines Anomaly Score Challenge: Benchmark Data and Model Independent Event Classification for the Large Hadron Collider
v1: 54 pages, 24 figures. v2: 56 pages, citations added, extend discussion of look-elsewhere-effect, results unchanged; v3. minor typos and updated references
SciPost Phys. 12, 043 (2022)
10.21468/SciPostPhys.12.1.043
null
hep-ph hep-ex physics.data-an stat.ML
http://creativecommons.org/licenses/by/4.0/
We describe the outcome of a data challenge conducted as part of the Dark Machines Initiative and the Les Houches 2019 workshop on Physics at TeV colliders. The challenged aims at detecting signals of new physics at the LHC using unsupervised machine learning algorithms. First, we propose how an anomaly score could b...
[ { "created": "Fri, 28 May 2021 18:00:02 GMT", "version": "v1" }, { "created": "Thu, 7 Oct 2021 16:09:21 GMT", "version": "v2" }, { "created": "Thu, 9 Dec 2021 18:33:46 GMT", "version": "v3" } ]
2022-02-02
[ [ "Aarrestad", "T.", "" ], [ "van Beekveld", "M.", "" ], [ "Bona", "M.", "" ], [ "Boveia", "A.", "" ], [ "Caron", "S.", "" ], [ "Davies", "J.", "" ], [ "De Simone", "A.", "" ], [ "Doglioni", "C.",...
We describe the outcome of a data challenge conducted as part of the Dark Machines Initiative and the Les Houches 2019 workshop on Physics at TeV colliders. The challenged aims at detecting signals of new physics at the LHC using unsupervised machine learning algorithms. First, we propose how an anomaly score could be ...
0908.3727
Daniel Feldman
Daniel Feldman
Superparticle Signatures: from PAMELA to the LHC
To appear in Nuclear Physics B; conference proceedings for BSM-LHC 09
Nucl.Phys.Proc.Suppl.200-202:82-92,2010
10.1016/j.nuclphysbps.2010.02.070
MCTP-09-43
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Signatures of soft supersymmetry breaking at the CERN LHC and in dark matter experiments are discussed with focus drawn to light superparticles, and in particular light gauginos and their discovery prospects. Connected to the above is the recent PAMELA positron anomaly and its implications for signatures of SUSY in e...
[ { "created": "Wed, 26 Aug 2009 18:52:35 GMT", "version": "v1" }, { "created": "Wed, 26 Aug 2009 23:57:01 GMT", "version": "v2" }, { "created": "Fri, 2 Oct 2009 01:39:14 GMT", "version": "v3" } ]
2014-11-20
[ [ "Feldman", "Daniel", "" ] ]
Signatures of soft supersymmetry breaking at the CERN LHC and in dark matter experiments are discussed with focus drawn to light superparticles, and in particular light gauginos and their discovery prospects. Connected to the above is the recent PAMELA positron anomaly and its implications for signatures of SUSY in ear...
1007.4049
Florian Staub
Florian Staub, Werner Porod, Bj\"orn Herrmann
The electroweak sector of the NMSSM at the one-loop level
51 pages, 8 figures; introduction slightly changed, typos corrected: matches published version; v4: corrected typos in eqs. (C.102) & (C.110)-(C.113)
JHEP 1010:040, 2010
10.1007/JHEP10(2010)040
DESY 10-106
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present the electroweak spectrum for the Next-to-Minimal Supersymmetric Standard Model at the one-loop level, e.g.\ the masses of Higgs bosons, sleptons, charginos and neutralinos. For the numerical evaluation we present a mSUGRA variant with non-universal Higgs mass parameters squared and we compare our results w...
[ { "created": "Fri, 23 Jul 2010 06:22:42 GMT", "version": "v1" }, { "created": "Tue, 31 Aug 2010 12:01:35 GMT", "version": "v2" }, { "created": "Mon, 1 Nov 2010 13:40:42 GMT", "version": "v3" }, { "created": "Thu, 11 Jun 2015 08:18:36 GMT", "version": "v4" } ]
2015-06-12
[ [ "Staub", "Florian", "" ], [ "Porod", "Werner", "" ], [ "Herrmann", "Björn", "" ] ]
We present the electroweak spectrum for the Next-to-Minimal Supersymmetric Standard Model at the one-loop level, e.g.\ the masses of Higgs bosons, sleptons, charginos and neutralinos. For the numerical evaluation we present a mSUGRA variant with non-universal Higgs mass parameters squared and we compare our results wit...
1606.04837
Carlota Andr\'es
Carlota Andr\'es, N\'estor Armesto, Matthew Luzum, Carlos A. Salgado and P\'ia Zurita
Energy versus centrality dependence of the jet quenching parameter $\hat q$ at RHIC and LHC: a new puzzle?
26 pages, 7 figures
Eur. Phys. J. C (2016) 76, 475
10.1140/epjc/s10052-016-4320-5
null
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The central goal of jet quenching studies in high-energy nuclear collisions is the characterization of those QCD medium properties that are accessible by these probes. Most of the discussion in the last years has been focused on the determination of the jet quenching parameter, $\hat q$. We present here an extraction...
[ { "created": "Wed, 15 Jun 2016 16:15:38 GMT", "version": "v1" }, { "created": "Fri, 12 Aug 2016 10:51:28 GMT", "version": "v2" } ]
2016-09-02
[ [ "Andrés", "Carlota", "" ], [ "Armesto", "Néstor", "" ], [ "Luzum", "Matthew", "" ], [ "Salgado", "Carlos A.", "" ], [ "Zurita", "Pía", "" ] ]
The central goal of jet quenching studies in high-energy nuclear collisions is the characterization of those QCD medium properties that are accessible by these probes. Most of the discussion in the last years has been focused on the determination of the jet quenching parameter, $\hat q$. We present here an extraction o...
0908.4567
James Jenkins Jr
James Jenkins and Terry Goldman (Los Alamos National Laboratory)
A phenomenological study of photon production in low energy neutrino nucleon scattering
6 pages, 8 figures, Proceedings of the DPF-2009 Conference, Detroit, MI, July 27-31, 2009
null
null
LA-UR-09-05513
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Low energy photon production is an important background to many current and future precision neutrino experiments. We present a phenomenological study of t-channel radiative corrections to neutral current neutrino nucleus scattering. After introducing the relevant processes and phenomenological coupling constants, we...
[ { "created": "Mon, 31 Aug 2009 17:23:21 GMT", "version": "v1" } ]
2009-09-01
[ [ "Jenkins", "James", "", "Los Alamos National Laboratory" ], [ "Goldman", "Terry", "", "Los Alamos National Laboratory" ] ]
Low energy photon production is an important background to many current and future precision neutrino experiments. We present a phenomenological study of t-channel radiative corrections to neutral current neutrino nucleus scattering. After introducing the relevant processes and phenomenological coupling constants, we w...
1210.7496
Peter A. Sturrock
Peter A. Sturrock, Ephraim Fischbach, Jere H. Jenkins, Rafael Lang, Jonathan Nistor
Time-Series Analysis of Reconstructed DAMA Data
16 pages, 27 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
An analysis of DAMA data (as reconstructed from DAMA publications) confirms the presence of an annual oscillation, but with a lower significance level than that claimed by DAMA. The phase of their signal is 0.39 +/- 0.02, corresponding to a peak value at about May 22, which is consistent with both the DAMA estimate a...
[ { "created": "Sun, 28 Oct 2012 19:42:15 GMT", "version": "v1" } ]
2012-10-30
[ [ "Sturrock", "Peter A.", "" ], [ "Fischbach", "Ephraim", "" ], [ "Jenkins", "Jere H.", "" ], [ "Lang", "Rafael", "" ], [ "Nistor", "Jonathan", "" ] ]
An analysis of DAMA data (as reconstructed from DAMA publications) confirms the presence of an annual oscillation, but with a lower significance level than that claimed by DAMA. The phase of their signal is 0.39 +/- 0.02, corresponding to a peak value at about May 22, which is consistent with both the DAMA estimate and...
1510.01412
Richard F. Lebed
Richard F. Lebed
Diquark Substructure in $\phi$ Photoproduction
9 pages, 7 eps figures, REVTeX. Version accepted by Phys. Rev. D. Clarifications and additional references added
Phys. Rev. D 92, 114006 (2015)
10.1103/PhysRevD.92.114006
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Observed enhancements in the forward and backward directions for $\phi$ meson photoproduction off nucleons are shown to be explainable by the production of a nonresonant recoiling $(su)$ diquark, $(\bar s ud)$ triquark pair. We show that the necessity of maintaining approximate collinearity of the quarks within these...
[ { "created": "Tue, 6 Oct 2015 01:38:26 GMT", "version": "v1" }, { "created": "Fri, 20 Nov 2015 16:24:37 GMT", "version": "v2" } ]
2015-12-09
[ [ "Lebed", "Richard F.", "" ] ]
Observed enhancements in the forward and backward directions for $\phi$ meson photoproduction off nucleons are shown to be explainable by the production of a nonresonant recoiling $(su)$ diquark, $(\bar s ud)$ triquark pair. We show that the necessity of maintaining approximate collinearity of the quarks within these u...
1611.07352
Felix Driencourt-Mangin
Felix Driencourt-Mangin
Computation of NLO Processes Involving Heavy Quarks Using Loop-Tree Duality
Presented at Diffraction 2016 Workshop, 2-8 September 2016, Acireale. 4 pages, 1 figure
null
10.1063/1.4977166
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a new method to compute higher-order corrections to physical cross-sections, at Next-to-Leading Order and beyond. This method, based on the Loop Tree Duality, leads to locally integrable expressions in four dimensions. By introducing a physically motivated momentum mapping between the momenta involved in t...
[ { "created": "Tue, 22 Nov 2016 15:19:55 GMT", "version": "v1" } ]
2017-04-05
[ [ "Driencourt-Mangin", "Felix", "" ] ]
We present a new method to compute higher-order corrections to physical cross-sections, at Next-to-Leading Order and beyond. This method, based on the Loop Tree Duality, leads to locally integrable expressions in four dimensions. By introducing a physically motivated momentum mapping between the momenta involved in the...
1411.7305
Richard Ruiz
Daniel Alva, Tao Han, Richard Ruiz
Heavy Majorana Neutrinos from $W\gamma$ Fusion at Hadron Colliders
46 pages, three appendices, 17 figures, 12 tables. Updated to match published version. Enjoy
JHEP 1502 (2015) 072
10.1007/JHEP02(2015)072
PITT-PACC-1407
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Vector boson fusion processes become increasingly more important at higher collider energies and for probing larger mass scales due to collinear logarithmic enhancements of the cross section. In this context, we revisit the production of a hypothetic heavy Majorana neutrino $(N)$ at hadron colliders. Particular atten...
[ { "created": "Wed, 26 Nov 2014 17:25:26 GMT", "version": "v1" }, { "created": "Wed, 25 Feb 2015 21:00:00 GMT", "version": "v2" } ]
2015-02-27
[ [ "Alva", "Daniel", "" ], [ "Han", "Tao", "" ], [ "Ruiz", "Richard", "" ] ]
Vector boson fusion processes become increasingly more important at higher collider energies and for probing larger mass scales due to collinear logarithmic enhancements of the cross section. In this context, we revisit the production of a hypothetic heavy Majorana neutrino $(N)$ at hadron colliders. Particular attenti...
0706.4430
Andre Utermann
Daniel Boer, Andre Utermann, Erik Wessels
Investigating the extended geometric scaling region at LHC with polarized and unpolarized final states
2 pages, 2 figures. Contributed to Workshop on Heavy Ion Collisions at the LHC: Last Call for Predictions, Geneva, Switzerland, 14 May - 8 Jun 2007
null
null
null
hep-ph
null
We present predictions for charged hadron production and Lambda polarization in p-p and p-Pb collisions at the LHC using the saturation inspired DHJ model for the dipole cross section in the extended geometric scaling region.
[ { "created": "Fri, 29 Jun 2007 14:30:47 GMT", "version": "v1" } ]
2007-07-02
[ [ "Boer", "Daniel", "" ], [ "Utermann", "Andre", "" ], [ "Wessels", "Erik", "" ] ]
We present predictions for charged hadron production and Lambda polarization in p-p and p-Pb collisions at the LHC using the saturation inspired DHJ model for the dipole cross section in the extended geometric scaling region.
1502.00119
Raphael M. Albuquerque
R.M. Albuquerque, M. Nielsen and C.M. Zanetti
Production of the Y(4260) State in B Meson Decay
5 pages, 2 figures, 1 table. arXiv admin note: text overlap with arXiv:1105.1343
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the branching ratio for the production of the meson $Y(4260)$ in the decay $B^- \to Y(4260)K^-$. We use QCD sum rules approach and we consider the $Y(4260)$ to be a mixture between charmonium and exotic tetraquark, $[\bar{c}\bar{q}][qc]$, states with $J^{PC}=1^{--}$. Using the value of the mixing angle d...
[ { "created": "Sat, 31 Jan 2015 15:05:28 GMT", "version": "v1" } ]
2015-02-03
[ [ "Albuquerque", "R. M.", "" ], [ "Nielsen", "M.", "" ], [ "Zanetti", "C. M.", "" ] ]
We calculate the branching ratio for the production of the meson $Y(4260)$ in the decay $B^- \to Y(4260)K^-$. We use QCD sum rules approach and we consider the $Y(4260)$ to be a mixture between charmonium and exotic tetraquark, $[\bar{c}\bar{q}][qc]$, states with $J^{PC}=1^{--}$. Using the value of the mixing angle det...
hep-ph/9507247
Lee Kang Young
Kang Young Lee and Jae Kwan Kim
Approximate Flavour Symmetries and See-Saw Mechanism
10 pages, RevTex, 2 PS figures (uuencoded in seperate file). To appear in Mod. Phys. Lett. A
Mod.Phys.Lett. A10 (1995) 1761-1768
10.1142/S0217732395001885
KAIST-CHEP-95/03
hep-ph
null
We study the approximate flavour symmetries imposed on the lepton sector assuming see-saw mechanism as the neutrino mass structure. We apply the symmetry to various neutrino phenomenologies and obtain constraints on neutrino masses and mixings.
[ { "created": "Fri, 7 Jul 1995 10:08:22 GMT", "version": "v1" }, { "created": "Sat, 8 Jul 1995 00:57:27 GMT", "version": "v2" }, { "created": "Fri, 7 Jul 1995 22:32:40 GMT", "version": "v3" } ]
2009-10-28
[ [ "Lee", "Kang Young", "" ], [ "Kim", "Jae Kwan", "" ] ]
We study the approximate flavour symmetries imposed on the lepton sector assuming see-saw mechanism as the neutrino mass structure. We apply the symmetry to various neutrino phenomenologies and obtain constraints on neutrino masses and mixings.
hep-ph/0509128
Andrea Lionetto
Andrea M. Lionetto
Supersymmetry Breaking, Extra Dimensions and Neutralino Dark Matter
9 pages, 5 figures; typos removed and some minor correction. Talk given at the Third Workshop on Science with the New Generation of High Energy Gamma-ray Experiments Cividale del Friuli, Italy - May 30-31 and June 1, 2005
null
10.1142/9789812773548_0013
null
hep-ph
null
We show some phenomenological implications for the dark matter problem of a class of models with deflected anomaly mediated supersymmetry breaking in the context of the MSSM. This scenario can be naturally embedded in a brane world model with one compactified extra dimension. It turns out that in these models the neu...
[ { "created": "Tue, 13 Sep 2005 10:54:27 GMT", "version": "v1" }, { "created": "Fri, 4 Aug 2006 13:43:17 GMT", "version": "v2" } ]
2017-08-23
[ [ "Lionetto", "Andrea M.", "" ] ]
We show some phenomenological implications for the dark matter problem of a class of models with deflected anomaly mediated supersymmetry breaking in the context of the MSSM. This scenario can be naturally embedded in a brane world model with one compactified extra dimension. It turns out that in these models the neutr...
0709.3358
Per Osland
Per Osland, Jan Kalinowski, Krzysztof Rolbiecki, Alexander Vereshagin
Polarization-independent CP-odd Observable in e^+e^- Chargino Production at One Loop
4 pages, Latex, 3 eps-figures included, Talk given at 2007 International Linear Collider Workshop (LCWS07 and ILC07), Hamburg, Germany, 30 May - 3 Jun 2007
ECONF C0705302:SUS10,2007
null
null
hep-ph
null
We discuss CP violation in the process e^+e^- \to \tilde\chi^+_i\tilde\chi^-_j with unpolarized beams. When the scalars are heavy, the box-diagram results constitute a major part of the full result. However, there are situations when the vertex and self-energy corrections dominate over the box diagrams. We also comme...
[ { "created": "Fri, 21 Sep 2007 06:06:32 GMT", "version": "v1" } ]
2009-02-16
[ [ "Osland", "Per", "" ], [ "Kalinowski", "Jan", "" ], [ "Rolbiecki", "Krzysztof", "" ], [ "Vereshagin", "Alexander", "" ] ]
We discuss CP violation in the process e^+e^- \to \tilde\chi^+_i\tilde\chi^-_j with unpolarized beams. When the scalars are heavy, the box-diagram results constitute a major part of the full result. However, there are situations when the vertex and self-energy corrections dominate over the box diagrams. We also comment...
0709.1903
Anna Stasto
Anna M. Stasto
RHIC physics: short overview
8 pages, 5 figures, pdflatex. Talk presented at 12th International Conference on Elastic and Diffractive Scattering, in Hamburg, DESY
null
null
null
hep-ph
null
This talk gives a very short overview of some of the important physical phenomena observed at the Relativistic Heavy Ion Collider (RHIC). The emphasis is put on the multiplicities, hard probes and the properties of the initial state.
[ { "created": "Wed, 12 Sep 2007 15:27:13 GMT", "version": "v1" } ]
2007-09-13
[ [ "Stasto", "Anna M.", "" ] ]
This talk gives a very short overview of some of the important physical phenomena observed at the Relativistic Heavy Ion Collider (RHIC). The emphasis is put on the multiplicities, hard probes and the properties of the initial state.
hep-ph/9808387
Peter Minkowski
P. Minkowski
Deacay and scattering amplitudes are not the same
18 pages
null
null
null
hep-ph
null
We study the lowest lying $\pi^+ \pi^-$ resonance R, bound by the long range Coulomb potential and destabilized by short range strong interactions mediating the dominant decay into two neutral pions. Parametrizing the corresponding partial decay width by $\Gamma (R \to 2 \pi^0) = 2/9 \alpha^3 \sqrt{m_{\pi^+}^2 - m_{\...
[ { "created": "Mon, 24 Aug 1998 16:19:14 GMT", "version": "v1" } ]
2016-09-06
[ [ "Minkowski", "P.", "" ] ]
We study the lowest lying $\pi^+ \pi^-$ resonance R, bound by the long range Coulomb potential and destabilized by short range strong interactions mediating the dominant decay into two neutral pions. Parametrizing the corresponding partial decay width by $\Gamma (R \to 2 \pi^0) = 2/9 \alpha^3 \sqrt{m_{\pi^+}^2 - m_{\pi...
hep-ph/9404212
null
H. Baer, C. H. Chen, F. Paige and X. Tata
Trileptons from Chargino-Neutralino Production at the CERN Large Hadron Collider
preprint nos. FSU-HEP-940310 and UH-511-786-94, 13 pages (REVTEX) plus 7 uuencoded figures attached
Phys.Rev. D50 (1994) 4508-4516
10.1103/PhysRevD.50.4508
null
hep-ph
null
We study direct production of charginos and neutralinos at the CERN Large Hadron Collider. We simulate all channels of chargino and neutralino production using ISAJET 7.07. The best mode for observing such processes appears to be $pp\to\tw_1\tz_2\to 3\ell +\eslt$. We evaluate signal expectations and background levels...
[ { "created": "Tue, 5 Apr 1994 01:56:18 GMT", "version": "v1" } ]
2009-10-28
[ [ "Baer", "H.", "" ], [ "Chen", "C. H.", "" ], [ "Paige", "F.", "" ], [ "Tata", "X.", "" ] ]
We study direct production of charginos and neutralinos at the CERN Large Hadron Collider. We simulate all channels of chargino and neutralino production using ISAJET 7.07. The best mode for observing such processes appears to be $pp\to\tw_1\tz_2\to 3\ell +\eslt$. We evaluate signal expectations and background levels, ...
hep-ph/0105217
Matthias Neubert
Matthias Neubert, Thomas Becher (Cornell U.)
Improved Determination of |V_{ub}| from Inclusive Semileptonic B-Meson Decays
15 pages, 2 figures
Phys.Lett.B535:127-137,2002
10.1016/S0370-2693(02)01760-4
CLNS 01/1737
hep-ph
null
We reduce the perturbative uncertainty in the determination of |V_{ub}| from inclusive semileptonic B decays by calculating the rate of B -> X_u l nu events with dilepton invariant mass q^2>(M_B-M_D)^2 at subleading order in the hybrid expansion, and to next-to-leading order in renormalization-group improved perturba...
[ { "created": "Tue, 22 May 2001 17:07:22 GMT", "version": "v1" } ]
2014-11-17
[ [ "Neubert", "Matthias", "", "Cornell U." ], [ "Becher", "Thomas", "", "Cornell U." ] ]
We reduce the perturbative uncertainty in the determination of |V_{ub}| from inclusive semileptonic B decays by calculating the rate of B -> X_u l nu events with dilepton invariant mass q^2>(M_B-M_D)^2 at subleading order in the hybrid expansion, and to next-to-leading order in renormalization-group improved perturbati...
hep-ph/0009020
Yue-Liang Wu
Yue-Liang Wu (ITP)
Flavor Symmetry and Neutrino Oscillations
3 pages, using macro ws-p10x7.cls. Talk given at 30th International Conference on High-Energy Physics (ICHEP 2000), 27 Jul - 2 Aug 2000, Osaka, Japan
null
null
null
hep-ph
null
We show how the nearly bi-maximal mixing scenario comes out naturally from gauged $SO(3)_{F}$ flavor symmetry via spontaneous symmetry breaking. An interesting relation between the neutrino mass-squared differences and the mixing angle, i.e., $\Delta m_{\mu e}^2 / \Delta m_{\tau\mu}^2 \simeq 2|U_{e 3}|^2 $ is obtaine...
[ { "created": "Mon, 4 Sep 2000 01:51:19 GMT", "version": "v1" } ]
2007-05-23
[ [ "Wu", "Yue-Liang", "", "ITP" ] ]
We show how the nearly bi-maximal mixing scenario comes out naturally from gauged $SO(3)_{F}$ flavor symmetry via spontaneous symmetry breaking. An interesting relation between the neutrino mass-squared differences and the mixing angle, i.e., $\Delta m_{\mu e}^2 / \Delta m_{\tau\mu}^2 \simeq 2|U_{e 3}|^2 $ is obtained....
hep-ph/0009010
Victor Elias
V. Elias
Infrared Consistency of NSVZ and DRED Supersymmetric Gluodynamics
LaTeX, 15 pages
J.Phys.G27:217-226,2001
10.1088/0954-3899/27/2/307
null
hep-ph
null
Pade approximant methods are applied to known terms of the DRED beta- function for N = 1 supersymmetric SU(3) Yang-Mills theory. Each of the [N|M] approximants with N + M less than or equal to 4 (M not equal to zero) constructed from this series exhibits a positive pole which precedes any zeros of the approximant, co...
[ { "created": "Fri, 1 Sep 2000 16:35:22 GMT", "version": "v1" } ]
2008-11-26
[ [ "Elias", "V.", "" ] ]
Pade approximant methods are applied to known terms of the DRED beta- function for N = 1 supersymmetric SU(3) Yang-Mills theory. Each of the [N|M] approximants with N + M less than or equal to 4 (M not equal to zero) constructed from this series exhibits a positive pole which precedes any zeros of the approximant, cons...
2211.08038
Vadim Baru
V.Baru, E.Epelbaum, A.A.Filin, C.Hanhart, A.V.Nefediev
On the emergence of heavy quark spin symmetry breaking in heavy quarkonium decays
11 pages, 5 figures
Phys.Rev.D 107 (2023) 1, 014027
10.1103/PhysRevD.107.014027
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Heavy-quark spin symmetry (HQSS) implies that in the direct decay of a heavy quarkonium with spin $S$, only lower lying heavy quarkonia with the same spin $S$ can be produced. However, this selection rule, expected to work very well in the $b$-quark sector, can be overcome if multiquark intermediate states are involv...
[ { "created": "Tue, 15 Nov 2022 10:37:31 GMT", "version": "v1" }, { "created": "Thu, 9 Feb 2023 22:22:42 GMT", "version": "v2" } ]
2023-02-13
[ [ "Baru", "V.", "" ], [ "Epelbaum", "E.", "" ], [ "Filin", "A. A.", "" ], [ "Hanhart", "C.", "" ], [ "Nefediev", "A. V.", "" ] ]
Heavy-quark spin symmetry (HQSS) implies that in the direct decay of a heavy quarkonium with spin $S$, only lower lying heavy quarkonia with the same spin $S$ can be produced. However, this selection rule, expected to work very well in the $b$-quark sector, can be overcome if multiquark intermediate states are involved...
hep-ph/9903382
Abdelhak Djouadi
A. Djouadi (Univ. Montpellier)
Impact of the SUSY Decays on the Search for the MSSM Higgs bosons at the LHC
9 pages, latex, 4 figures using epsfig
Mod.Phys.Lett. A14 (1999) 359-368
10.1142/S0217732399000419
PM/98-18, GDR-S-012
hep-ph
null
In the context of the Minimal Supersymmetric extension of the Standard Model, we discuss the impact of the decays of the neutral Higgs bosons into supersymmetric particles, charginos/neutralinos and sfermions. We show that these decay modes could be dominant, when they are kinematically accessible, thus strongly supp...
[ { "created": "Wed, 17 Mar 1999 13:08:08 GMT", "version": "v1" } ]
2009-10-31
[ [ "Djouadi", "A.", "", "Univ. Montpellier" ] ]
In the context of the Minimal Supersymmetric extension of the Standard Model, we discuss the impact of the decays of the neutral Higgs bosons into supersymmetric particles, charginos/neutralinos and sfermions. We show that these decay modes could be dominant, when they are kinematically accessible, thus strongly suppre...
hep-ph/9502338
Patricia Ball
E. Bagan, Patricia Ball, B. Fiol and P. Gosdzinsky
Next-to-leading Order Radiative Corrections to the Decay $b\to ccs$
10 pages, requires a4wide.sty and epsf.sty, 1 uuencoded figure
Phys.Lett. B351 (1995) 546-554
10.1016/0370-2693(95)00437-P
CERN-TH/95-25
hep-ph
null
We calculate the complete ${\cal O}(\alpha_s)$ corrections to the quark decay $b\to ccs$ taking full account of the quark masses, but neglecting penguin contributions. For a c to the b quark mass ratio $m_c/m_b= 0.3$ and a strange quark mass of $0.2\,$GeV, we find that the next-to-leading order (NLO) corrections incr...
[ { "created": "Fri, 17 Feb 1995 17:13:45 GMT", "version": "v1" } ]
2016-09-01
[ [ "Bagan", "E.", "" ], [ "Ball", "Patricia", "" ], [ "Fiol", "B.", "" ], [ "Gosdzinsky", "P.", "" ] ]
We calculate the complete ${\cal O}(\alpha_s)$ corrections to the quark decay $b\to ccs$ taking full account of the quark masses, but neglecting penguin contributions. For a c to the b quark mass ratio $m_c/m_b= 0.3$ and a strange quark mass of $0.2\,$GeV, we find that the next-to-leading order (NLO) corrections increa...
hep-ph/9609428
Francesco Sannino
Masayasu Harada (Syracuse Univ.), Francesco Sannino (Syracuse Univ., Univ. ``Federico II'' & INFN (Napoli)) and Joseph Schechter (Syracuse Univ.)
Comment on ``Confirmation of the Sigma Meson''
3 pages (LaTeX), 1 PostScript Figure
Phys.Rev.Lett.78:1603,1997
10.1103/PhysRevLett.78.1603
SU-4240-650
hep-ph
null
We comment on the recent paper by N.A. Tornqvist and M. Roos published in Phys. Rev. Lett. 76, 1575 (1996).
[ { "created": "Sat, 21 Sep 1996 00:26:45 GMT", "version": "v1" } ]
2008-11-26
[ [ "Harada", "Masayasu", "", "Syracuse Univ." ], [ "Sannino", "Francesco", "", "Syracuse Univ.,\n Univ. ``Federico II'' & INFN" ], [ "Schechter", "Joseph", "", "Syracuse Univ." ] ]
We comment on the recent paper by N.A. Tornqvist and M. Roos published in Phys. Rev. Lett. 76, 1575 (1996).
2407.07661
Zhi-Lei She
Zhi-Lei She, An-Ke Lei, Wen-Chao Zhang, Yu-Liang Yan, Dai-Mei Zhou, Hua Zheng and Ben-Hao Sa
Confirming the glueball-like particle $X(2370)$ productions in $e^+e^-$ collisions at BESIII energy with PACIAE model
4 pages, 2 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The parton and hadron cascade model {\footnotesize PACIAE} is employed to confirm the BESIII newest observation of glueball-like particle $\rm X(2370)$ production in $e^+e^-$ collisions at $\sqrt{s}=4.95\,\mathrm{GeV}$. We coalesce the $\rm X(2370)$ glueball state with two gluons in the simulated partonic final state...
[ { "created": "Wed, 10 Jul 2024 13:43:44 GMT", "version": "v1" } ]
2024-07-11
[ [ "She", "Zhi-Lei", "" ], [ "Lei", "An-Ke", "" ], [ "Zhang", "Wen-Chao", "" ], [ "Yan", "Yu-Liang", "" ], [ "Zhou", "Dai-Mei", "" ], [ "Zheng", "Hua", "" ], [ "Sa", "Ben-Hao", "" ] ]
The parton and hadron cascade model {\footnotesize PACIAE} is employed to confirm the BESIII newest observation of glueball-like particle $\rm X(2370)$ production in $e^+e^-$ collisions at $\sqrt{s}=4.95\,\mathrm{GeV}$. We coalesce the $\rm X(2370)$ glueball state with two gluons in the simulated partonic final state b...
2407.13630
Dan Kondo
Dan Kondo
Exploration to early universe by Josephson Junction Switching Current Detector
22 pages, 8 figures
null
null
null
hep-ph cond-mat.mes-hall gr-qc quant-ph
http://creativecommons.org/licenses/by/4.0/
In this paper, we propose a method to probe a Stochastic Gravitational Wave Background (SGWB) with Josephson Junction Switching Current Detector (JJSCD). The sensitivity for the shear can reach $h\simeq 10^{-19}$ realistically, $10^{-21}$ in the near future, $10^{-24}$ optimistically. If we utilize the enhancement fa...
[ { "created": "Thu, 18 Jul 2024 16:01:40 GMT", "version": "v1" } ]
2024-07-19
[ [ "Kondo", "Dan", "" ] ]
In this paper, we propose a method to probe a Stochastic Gravitational Wave Background (SGWB) with Josephson Junction Switching Current Detector (JJSCD). The sensitivity for the shear can reach $h\simeq 10^{-19}$ realistically, $10^{-21}$ in the near future, $10^{-24}$ optimistically. If we utilize the enhancement fact...
hep-ph/0402010
Otto Kong
Otto C.W. Kong
Higgs sector contributions to \Delta a_\mu and the constraints on two-Higgs-doublet-model with and without SUSY
1+4 pages of latex with ws-procs9x6.cls,5 figure postscripts included; talk at SUSY03
null
null
NCU-HEP-k011
hep-ph
null
Interesting contributions to $\Delta a_\mu$ from a two-Higgs-doublet-model is coming from a two-loop Barr-Zee diagram for most part of the parameter space -- a fact that has been overlooked by some Higgs/SUSY experts. A definite positive contribution has requirements that go against precision EW data and other known ...
[ { "created": "Sun, 1 Feb 2004 14:20:17 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kong", "Otto C. W.", "" ] ]
Interesting contributions to $\Delta a_\mu$ from a two-Higgs-doublet-model is coming from a two-loop Barr-Zee diagram for most part of the parameter space -- a fact that has been overlooked by some Higgs/SUSY experts. A definite positive contribution has requirements that go against precision EW data and other known co...
2109.00585
Sebastian Pa{\ss}ehr
Florian Domingo and Sebastian Pa{\ss}ehr
Curing tachyonic tree-level syndrome in NMSSM light-singlet scenarios
30 pages, 9 figures, 3 tables
null
10.1140/epjc/s10052-022-09985-5
BONN-TH-2021-07 TTK-21-33
hep-ph
http://creativecommons.org/licenses/by/4.0/
Models with an extended Higgs sector open up the phenomenological possibility of additional scalars, beyond the SM-like boson observed by the LHC, with mass at or below the electroweak scale. Such scenarios are in particular viable in the presence of electroweak-singlet spin-0 fields, as expected for instance in the ...
[ { "created": "Wed, 1 Sep 2021 19:25:47 GMT", "version": "v1" } ]
2022-02-16
[ [ "Domingo", "Florian", "" ], [ "Paßehr", "Sebastian", "" ] ]
Models with an extended Higgs sector open up the phenomenological possibility of additional scalars, beyond the SM-like boson observed by the LHC, with mass at or below the electroweak scale. Such scenarios are in particular viable in the presence of electroweak-singlet spin-0 fields, as expected for instance in the co...
1801.09110
Stephan Narison
R.M Albuquerque (FAT, UERJ, Rio de Janeiro-BR), S. Narison (LUPM-CNRS, Montpellier-FR), F. Fanomezana, A. Rabemananjara, D. Rabetiarivony, G. Randriamanatrika (iHEPMAD, Antananarivo-MG)
0+ and 1+ heavy-light exotic mesons at N2LO in the chiral limit
5 pages, 2 Tables, 5 Figures, Part of the review talk presented by S. Narison at QCD17-Montpellier-FR (3-7 july 2017) and Talk presented by A. Rabemananjara at HEPMAD17-Antananarivo-MG (21-26 september2017). To appear in the proceedings
null
null
null
hep-ph hep-ex hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We use QCD spectral sum rules (QSSR) and the factorization properties of molecule and four-quark currents to estimate the masses and couplings of the 0+ and 1+ molecules and four-quark at N2LO of PT QCD. We include in the OPE the contributions of non-perturbative condensates up to dimension-six. Within the Laplace su...
[ { "created": "Sat, 27 Jan 2018 16:51:42 GMT", "version": "v1" } ]
2018-01-30
[ [ "Albuquerque", "R. M", "", "FAT, UERJ, Rio de Janeiro-BR" ], [ "Narison", "S.", "", "LUPM-CNRS,\n Montpellier-FR" ], [ "Fanomezana", "F.", "", "iHEPMAD, Antananarivo-MG" ], [ "Rabemananjara", "A.", "", "iHEPMAD, Antananarivo-MG" ], [...
We use QCD spectral sum rules (QSSR) and the factorization properties of molecule and four-quark currents to estimate the masses and couplings of the 0+ and 1+ molecules and four-quark at N2LO of PT QCD. We include in the OPE the contributions of non-perturbative condensates up to dimension-six. Within the Laplace sum ...
2407.14150
Xu-Dong Huang
Xu-Dong Huang, Xing-Gang Wu, Xu-Chang Zheng, Bin Gong, Jian-Xiong Wang
QCD corrections of $e^+e^- \to J/\psi+c+\bar{c}$ using the principle of maximum conformality
22 pages, 11 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, we compute the total and differential cross sections for $e^+e^- \to J/\psi+c+\bar{c}$ at the $B$ factories up to next-to-leading order (NLO) corrections within the framework of nonrelativistic QCD factorization theory. We then obtain an improved pQCD prediction for this process by using the Principle ...
[ { "created": "Fri, 19 Jul 2024 09:29:35 GMT", "version": "v1" } ]
2024-07-22
[ [ "Huang", "Xu-Dong", "" ], [ "Wu", "Xing-Gang", "" ], [ "Zheng", "Xu-Chang", "" ], [ "Gong", "Bin", "" ], [ "Wang", "Jian-Xiong", "" ] ]
In this paper, we compute the total and differential cross sections for $e^+e^- \to J/\psi+c+\bar{c}$ at the $B$ factories up to next-to-leading order (NLO) corrections within the framework of nonrelativistic QCD factorization theory. We then obtain an improved pQCD prediction for this process by using the Principle of...
2405.02626
Chaowei Shen
Chao-Wei Shen, Deborah R\"onchen, Ulf-G. Mei{\ss}ner, Bing-Song Zou and Yu-Fei Wang
Exploration of the LHCb $P_c$ states and possible resonances in a unitary coupled-channel model
9 pages
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We extend our previous study of the interactions of $\bar{D}^{(*)} \Lambda_c - \bar{D}^{(*)}\Sigma_c^{(*)}$ within an analytic, unitary, coupled-channel approach by including the $J/\psi p$ channel and performing fits to the $J/\psi p$ invariant mass distributions in the $\Lambda_b^0 \to J/\psi p K^-$ decay by the LH...
[ { "created": "Sat, 4 May 2024 09:58:29 GMT", "version": "v1" } ]
2024-05-07
[ [ "Shen", "Chao-Wei", "" ], [ "Rönchen", "Deborah", "" ], [ "Meißner", "Ulf-G.", "" ], [ "Zou", "Bing-Song", "" ], [ "Wang", "Yu-Fei", "" ] ]
We extend our previous study of the interactions of $\bar{D}^{(*)} \Lambda_c - \bar{D}^{(*)}\Sigma_c^{(*)}$ within an analytic, unitary, coupled-channel approach by including the $J/\psi p$ channel and performing fits to the $J/\psi p$ invariant mass distributions in the $\Lambda_b^0 \to J/\psi p K^-$ decay by the LHCb...
1908.06985
Ben King
B. King
A uniform locally constant field approximation for photon-seeded pair production
8 pages, 3 figures
Phys. Rev. A 101, 042508 (2020)
10.1103/PhysRevA.101.042508
null
hep-ph physics.plasm-ph quant-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A challenge to upcoming experiments that plan to collide a particle beam with laser pulses of moderate intensity is how to correctly incorporate quantum effects into simulation frameworks. Using a uniform approach, we extend the widely-used locally constant field approximation (LCFA) to derive an improved rate of pho...
[ { "created": "Mon, 19 Aug 2019 18:00:01 GMT", "version": "v1" } ]
2020-05-06
[ [ "King", "B.", "" ] ]
A challenge to upcoming experiments that plan to collide a particle beam with laser pulses of moderate intensity is how to correctly incorporate quantum effects into simulation frameworks. Using a uniform approach, we extend the widely-used locally constant field approximation (LCFA) to derive an improved rate of photo...
0805.0416
Zhi-Zhong Xing
Zhi-zhong Xing
Tetra-maximal Neutrino Mixing and Its Implications on Neutrino Oscillations and Collider Signatures
RevTex 11 pages. Minor changes made. Accepted for publication in Phys. Rev. D (Rapid Communication)
Phys.Rev.D78:011301,2008
10.1103/PhysRevD.78.011301
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a novel neutrino mixing pattern in terms of only two small integers 1 and 2 together with their square roots and the imaginary number $i$. This ansatz is referred to as the "tetra-maximal" mixing because it can be expressed as a product of four rotation matrices, whose mixing angles are all \pi/4 in the co...
[ { "created": "Sun, 4 May 2008 14:29:18 GMT", "version": "v1" }, { "created": "Fri, 9 May 2008 03:11:15 GMT", "version": "v2" }, { "created": "Wed, 4 Jun 2008 08:23:09 GMT", "version": "v3" } ]
2008-11-26
[ [ "Xing", "Zhi-zhong", "" ] ]
We propose a novel neutrino mixing pattern in terms of only two small integers 1 and 2 together with their square roots and the imaginary number $i$. This ansatz is referred to as the "tetra-maximal" mixing because it can be expressed as a product of four rotation matrices, whose mixing angles are all \pi/4 in the comp...
hep-ph/0303118
Sergey Bondarenko
S.Bondarenko, M.Kozlov and E.Levin
Gamma^* - Gamma^* Scattering: Saturation and Unitarization in the BFKL approach
22 pages, 7 figures
ActaPhys.Polon.B34:3081-3102,2003
null
TAUP-2731-2003
hep-ph
null
In this paper $\gamma^* - \gamma^*$ scattering with large, but more or less equal virtualities of two photons is discussed using BFKL dynamics, emphasizing the large impact parameter behavior ($b_t$) of the dipole-dipole amplitude. It is shown that the non-perturbative contribution is essential to fulfill the unitari...
[ { "created": "Fri, 14 Mar 2003 09:37:13 GMT", "version": "v1" } ]
2008-11-26
[ [ "Bondarenko", "S.", "" ], [ "Kozlov", "M.", "" ], [ "Levin", "E.", "" ] ]
In this paper $\gamma^* - \gamma^*$ scattering with large, but more or less equal virtualities of two photons is discussed using BFKL dynamics, emphasizing the large impact parameter behavior ($b_t$) of the dipole-dipole amplitude. It is shown that the non-perturbative contribution is essential to fulfill the unitarity...
0707.2641
Madhukar Mishra Mr.
M. Mishra, C. P. Singh, V. J. Menon and Ritesh Kumar Dubey
$J/\psi$ suppression in Au+Au collisions at RHIC : colour screening scenario in the bag model at variable participant numbers
13 pages, 2 figures
Phys.Lett.B656:45-50,2007
10.1016/j.physletb.2007.09.043
null
hep-ph
null
We have modified the colour screening theory of Chu and Matsui by properly incorporating bag model equation of state for quark gluon plasma (QGP). We have also chosen the pressure parametrization rather than parametrizing energy density in the transverse plane. We assume that the QGP dense medium is expanding in the ...
[ { "created": "Wed, 18 Jul 2007 06:04:33 GMT", "version": "v1" }, { "created": "Tue, 18 Sep 2007 12:06:38 GMT", "version": "v2" } ]
2008-11-26
[ [ "Mishra", "M.", "" ], [ "Singh", "C. P.", "" ], [ "Menon", "V. J.", "" ], [ "Dubey", "Ritesh Kumar", "" ] ]
We have modified the colour screening theory of Chu and Matsui by properly incorporating bag model equation of state for quark gluon plasma (QGP). We have also chosen the pressure parametrization rather than parametrizing energy density in the transverse plane. We assume that the QGP dense medium is expanding in the lo...
hep-ph/0105142
Reinhard Alkofer
Reinhard Alkofer, Lorenz von Smekal, Peter Watson
The Kugo-Ojima Confinement Criterion from Dyson-Schwinger Equations
8 pages, 5 figures; To be published in the proceedings of the Workshop on Dynamical aspects of the QCD phase transition, ECT* Trento, March 12 - 15, 2001. Typos corrected
null
null
UNITU-THEP-10/01, FAU-TP3-01/2
hep-ph
null
Prerequisites of confinement in the covariant and local description of QCD are reviewed. In particular, the Kugo-Ojima confinement criterion, the positivity violations of transverse gluon and quark states, and the conditions necessary to avoid the decomposition property for colored clusters are discussed. In Landau g...
[ { "created": "Tue, 15 May 2001 13:01:20 GMT", "version": "v1" }, { "created": "Fri, 18 May 2001 07:14:09 GMT", "version": "v2" } ]
2007-05-23
[ [ "Alkofer", "Reinhard", "" ], [ "von Smekal", "Lorenz", "" ], [ "Watson", "Peter", "" ] ]
Prerequisites of confinement in the covariant and local description of QCD are reviewed. In particular, the Kugo-Ojima confinement criterion, the positivity violations of transverse gluon and quark states, and the conditions necessary to avoid the decomposition property for colored clusters are discussed. In Landau gau...
hep-ph/9512335
null
John Ellis
Supersymmetry and Grand Unification
35 pages, latex, 14 figures (not included, but obtainable from johne@cernvm.cern.ch, thank you)
null
null
null
hep-ph hep-th
null
Supersymmetry and Grand Unification are the two most promising directions for physics beyond the Standard Model. They receive indirect experimental support from the apparent lightness of the Higgs boson, the values of the gauge couplings measured at LEP and elsewhere, and the persistent solar neutrino deficit. Phenom...
[ { "created": "Mon, 18 Dec 1995 14:18:53 GMT", "version": "v1" } ]
2009-09-25
[ [ "Ellis", "John", "" ] ]
Supersymmetry and Grand Unification are the two most promising directions for physics beyond the Standard Model. They receive indirect experimental support from the apparent lightness of the Higgs boson, the values of the gauge couplings measured at LEP and elsewhere, and the persistent solar neutrino deficit. Phenomen...
hep-ph/0509210
Zongguo Si
W. Bernreuther, M. Fuecker, Z. G. Si
Mixed QCD and Weak Corrections to $t\bar{t}$ Production by Quark-Antiquark Annihilation
Talk given at "International Conference on QCD and Hadronic Physics", Beijing, China, 16-20 Jun 2005
Int.J.Mod.Phys. A21 (2006) 914-917
10.1142/S0217751X06032307
SDU-HEP200504
hep-ph
null
We report on our computation of the mixed QCD and weak corrections to $q {\bar q} \to t\bar{t}$ including $t, \bar t$ spin effects, in particular on single top spin asymmetries.
[ { "created": "Wed, 21 Sep 2005 03:26:23 GMT", "version": "v1" } ]
2016-09-06
[ [ "Bernreuther", "W.", "" ], [ "Fuecker", "M.", "" ], [ "Si", "Z. G.", "" ] ]
We report on our computation of the mixed QCD and weak corrections to $q {\bar q} \to t\bar{t}$ including $t, \bar t$ spin effects, in particular on single top spin asymmetries.
hep-ph/9312227
null
A. Wambach
Heavy Quark S- to P-Wave Transitions in a Consistent Quark Model
18 pages, OUTP-93 28P, one figure available from the author by request
Nucl.Phys. B434 (1995) 647-661
10.1016/0550-3213(94)00485-W
null
hep-ph
null
In Heavy Quark Effective Theory the calculation of form-factors of higher excited states in a non-relativistic framework suffers severe inconsistencies due to frame dependencies. We show how careful inclusion of the Wigner-rotation of the spin of the light quark and a covariant description of the meson wave-function ...
[ { "created": "Mon, 6 Dec 1993 10:36:44 GMT", "version": "v1" } ]
2016-09-01
[ [ "Wambach", "A.", "" ] ]
In Heavy Quark Effective Theory the calculation of form-factors of higher excited states in a non-relativistic framework suffers severe inconsistencies due to frame dependencies. We show how careful inclusion of the Wigner-rotation of the spin of the light quark and a covariant description of the meson wave-function re...
0712.0621
Jean-Rene Cudell
O. V. Selyugin, J.-R. Cudell, E. Predazzi
Analytic properties of different unitarization schemes
Presented at the Advanced Studies Institute "SYMMETRIES AND SPIN", Prague, Czech Republic, July 8 - July 14, 2007. In version 2 figures are updated, a few typos are fixed, and a brief discussion on the real part is included
Eur.Phys.J.ST162:37-42,2008
10.1140/epjst/e2008-00773-0
null
hep-ph
null
The analytic properties of the eikonal and U-matrix unitarization schemes are examined. It is shown that the basic properties of these schemes are identical. Both can fill the full circle of unitarity, and both can lead to standard and non-standard asymptotic relations for the ratio of the elastic cross section to th...
[ { "created": "Tue, 4 Dec 2007 21:56:57 GMT", "version": "v1" }, { "created": "Mon, 7 Jan 2008 13:57:59 GMT", "version": "v2" } ]
2008-12-18
[ [ "Selyugin", "O. V.", "" ], [ "Cudell", "J. -R.", "" ], [ "Predazzi", "E.", "" ] ]
The analytic properties of the eikonal and U-matrix unitarization schemes are examined. It is shown that the basic properties of these schemes are identical. Both can fill the full circle of unitarity, and both can lead to standard and non-standard asymptotic relations for the ratio of the elastic cross section to the ...
2311.15853
M. Naeem Anwar
Muhammad Naeem Anwar, Timothy J. Burns
Structure of $cc \bar c \bar c$ tetraquarks and interpretation of LHC states
null
null
null
null
hep-ph hep-ex hep-lat
http://creativecommons.org/licenses/by/4.0/
Motivated by recent experimental evidence for apparent $cc\bar c \bar c$ states at LHCb, CMS and ATLAS, we consider how the mass spectrum and decays of such states can be used to discriminate among their possible theoretical interpretations, with a particular focus on identifying whether quarks or diquarks are the mo...
[ { "created": "Mon, 27 Nov 2023 14:20:56 GMT", "version": "v1" } ]
2023-11-28
[ [ "Anwar", "Muhammad Naeem", "" ], [ "Burns", "Timothy J.", "" ] ]
Motivated by recent experimental evidence for apparent $cc\bar c \bar c$ states at LHCb, CMS and ATLAS, we consider how the mass spectrum and decays of such states can be used to discriminate among their possible theoretical interpretations, with a particular focus on identifying whether quarks or diquarks are the most...
1508.01798
Ken Van Tilburg
Asimina Arvanitaki, Savas Dimopoulos, Ken Van Tilburg
Sound of Dark Matter: Searching for Light Scalars with Resonant-Mass Detectors
5 pages, 3 figures
Phys. Rev. Lett. 116, 031102 (2016)
10.1103/PhysRevLett.116.031102
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The fine-structure constant and the electron mass in string theory are determined by the values of scalar fields called moduli. If the dark matter takes on the form of such a light modulus, it oscillates with a frequency equal to its mass and an amplitude determined by the local dark-matter density. This translates i...
[ { "created": "Fri, 7 Aug 2015 20:03:47 GMT", "version": "v1" }, { "created": "Sun, 24 Jan 2016 00:21:41 GMT", "version": "v2" } ]
2016-01-26
[ [ "Arvanitaki", "Asimina", "" ], [ "Dimopoulos", "Savas", "" ], [ "Van Tilburg", "Ken", "" ] ]
The fine-structure constant and the electron mass in string theory are determined by the values of scalar fields called moduli. If the dark matter takes on the form of such a light modulus, it oscillates with a frequency equal to its mass and an amplitude determined by the local dark-matter density. This translates int...
hep-ph/0512364
Gilberto Colangelo
Irinel Caprini, Gilberto Colangelo and Heinrich Leutwyler
Mass and width of the lowest resonance in QCD
Revtex, 4 pages, 2 figures, two refences added, minor text changes, version appeared in Phys. Rev. Lett
Phys.Rev.Lett.96:132001,2006
10.1103/PhysRevLett.96.132001
null
hep-ph
null
We demonstrate that near the threshold, the pi pi scattering amplitude contains a pole with the quantum numbers of the vacuum - commonly referred to as the sigma - and determine its mass and width within small uncertainties. Our derivation does not involve models or parametrizations, but relies on a straightforward c...
[ { "created": "Thu, 29 Dec 2005 17:46:27 GMT", "version": "v1" }, { "created": "Fri, 7 Apr 2006 15:58:16 GMT", "version": "v2" } ]
2008-11-26
[ [ "Caprini", "Irinel", "" ], [ "Colangelo", "Gilberto", "" ], [ "Leutwyler", "Heinrich", "" ] ]
We demonstrate that near the threshold, the pi pi scattering amplitude contains a pole with the quantum numbers of the vacuum - commonly referred to as the sigma - and determine its mass and width within small uncertainties. Our derivation does not involve models or parametrizations, but relies on a straightforward cal...
hep-ph/9703338
Georgios Leontaris
G. K. Leontaris and J. D. Vergados
Constraints on Leptoquark Masses and Couplings from Rare Processes and Unification
Latex file, 10pages, reference added
Phys.Lett. B409 (1997) 283-287
10.1016/S0370-2693(97)00889-7
null
hep-ph
null
Motivated by the recent experimental data at HERA and ZEUS, which have reported evidence for leptoqark production at Sqrt{s}=314 GeV with a mass at M_D=200 GeV we consider its implications in unified supersymmetric theories. We also present calculations for leptoquark production incorporating the existing limits from...
[ { "created": "Mon, 17 Mar 1997 17:37:28 GMT", "version": "v1" }, { "created": "Tue, 18 Mar 1997 21:53:58 GMT", "version": "v2" }, { "created": "Thu, 20 Mar 1997 20:18:19 GMT", "version": "v3" } ]
2009-10-30
[ [ "Leontaris", "G. K.", "" ], [ "Vergados", "J. D.", "" ] ]
Motivated by the recent experimental data at HERA and ZEUS, which have reported evidence for leptoqark production at Sqrt{s}=314 GeV with a mass at M_D=200 GeV we consider its implications in unified supersymmetric theories. We also present calculations for leptoquark production incorporating the existing limits from o...
1607.04726
Kazuhiro Watanabe
Kazuhiro Watanabe and Bo-Wen Xiao
Forward Hadron Productions in Proton-Proton Collisions in Small-$x$ Formalism
24 pages, 7 figures
Phys. Rev. D 94, 094046 (2016)
10.1103/PhysRevD.94.094046
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Employing the so-called hybrid formalism, we calculate the cross section of inclusive hadron production in proton-proton collisions at forward rapidity in small-$x$ formalism at one-loop order. For the case of hadron production at forward rapidity, we can uses collinear parton distributions for projectile proton and ...
[ { "created": "Sat, 16 Jul 2016 11:03:18 GMT", "version": "v1" } ]
2016-12-07
[ [ "Watanabe", "Kazuhiro", "" ], [ "Xiao", "Bo-Wen", "" ] ]
Employing the so-called hybrid formalism, we calculate the cross section of inclusive hadron production in proton-proton collisions at forward rapidity in small-$x$ formalism at one-loop order. For the case of hadron production at forward rapidity, we can uses collinear parton distributions for projectile proton and $k...
hep-ph/9911523
Yuri V. Kovchegov
Yuri V. Kovchegov (BNL), Eugene Levin (BNL and Tel Aviv University)
Diffractive Dissociation Including Multiple Pomeron Exchanges in High Parton Density QCD
REVTeX, 14 pages, 9 figures
Nucl.Phys. B577 (2000) 221-239
10.1016/S0550-3213(00)00125-5
BNL-NT-99/6, TAUP-2612-99
hep-ph
null
We derive an evolution equation describing the high energy behavior of the cross section for the single diffractive dissociation in deep inelastic scattering on a hadron or a nucleus. The evolution equation resums multiple BFKL pomeron exchanges contributing to the cross section of the events with large rapidity gaps...
[ { "created": "Mon, 29 Nov 1999 19:29:49 GMT", "version": "v1" } ]
2009-10-31
[ [ "Kovchegov", "Yuri V.", "", "BNL" ], [ "Levin", "Eugene", "", "BNL and Tel Aviv University" ] ]
We derive an evolution equation describing the high energy behavior of the cross section for the single diffractive dissociation in deep inelastic scattering on a hadron or a nucleus. The evolution equation resums multiple BFKL pomeron exchanges contributing to the cross section of the events with large rapidity gaps. ...
0802.2727
Jacques Soffer
Jacques Soffer
Summary of the workshop DUBNA-SPIN 07
9 pages, 7 figures, to be published in the proceedings of the workshop DUBNA-SPIN 07, Sept. 02-09, 2007, Dubna (Russia)
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
During the five days of this workshop we had forty five hours of lectures, so a tremendous amount of new information was delivered. I will be able only to highlight some aspects of the numerous interesting topics, which were discussed, leaving out many of them.
[ { "created": "Tue, 19 Feb 2008 22:26:07 GMT", "version": "v1" } ]
2008-02-21
[ [ "Soffer", "Jacques", "" ] ]
During the five days of this workshop we had forty five hours of lectures, so a tremendous amount of new information was delivered. I will be able only to highlight some aspects of the numerous interesting topics, which were discussed, leaving out many of them.
1906.09101
Masashi Aiko
Masashi Aiko, Shinya Kanemura, Kentarou Mawatari
Exploring the global symmetry structure of the Higgs potential via same-sign pair production of charged Higgs bosons
5 pages, 3 figures
null
10.1016/j.physletb.2019.134854
OU-HET 995
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a novel process where singly charged Higgs bosons are produced in a same-sign pair via vector boson fusion at hadron colliders in two Higgs doublet models. The process directly relates to the global symmetry structure of the Higgs potential. The produced charged Higgs bosons predominantly decay into a tau ...
[ { "created": "Fri, 21 Jun 2019 12:48:04 GMT", "version": "v1" } ]
2019-08-14
[ [ "Aiko", "Masashi", "" ], [ "Kanemura", "Shinya", "" ], [ "Mawatari", "Kentarou", "" ] ]
We propose a novel process where singly charged Higgs bosons are produced in a same-sign pair via vector boson fusion at hadron colliders in two Higgs doublet models. The process directly relates to the global symmetry structure of the Higgs potential. The produced charged Higgs bosons predominantly decay into a tau le...
0911.2085
Laura Tolos
L. Tolos, D. Cabrera, D. Gamermann, C. Garcia-Recio, R. Molina, J. Nieves, E. Oset and A. Ramos
Strange and charm mesons at FAIR
12 pages, 9 figures, invited talk at XXXI Mazurian Lakes Conference on Physics: Nuclear Physics and the Road to FAIR, August 30-September 6, 2009, Piaski, Poland
null
null
null
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the properties of strange and charm mesons in hot and dense matter within a self-consistent coupled-channel approach for the experimental conditions of density and temperature expected for the CBM experiment at FAIR/GSI. The in-medium solution at finite temperature accounts for Pauli blocking effects, mean-f...
[ { "created": "Wed, 11 Nov 2009 09:15:47 GMT", "version": "v1" } ]
2009-11-12
[ [ "Tolos", "L.", "" ], [ "Cabrera", "D.", "" ], [ "Gamermann", "D.", "" ], [ "Garcia-Recio", "C.", "" ], [ "Molina", "R.", "" ], [ "Nieves", "J.", "" ], [ "Oset", "E.", "" ], [ "Ramos", "A.", ...
We study the properties of strange and charm mesons in hot and dense matter within a self-consistent coupled-channel approach for the experimental conditions of density and temperature expected for the CBM experiment at FAIR/GSI. The in-medium solution at finite temperature accounts for Pauli blocking effects, mean-fie...
0805.2439
Chien-Wen Hwang
Chien-Wen Hwang
Model-independent analysis for determining mass splittings of heavy baryons
14 pages, 1 figure
J.Phys.G35:075003,2008
10.1088/0954-3899/35/7/075003
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the hyperfine mass differences of heavy hadrons in the heavy quark effect theory (HQET). The effects of one-gluon exchange interaction are considered for the heavy mesons and baryons. Base on the known experimental data, we predict the masses of some heavy baryons in a model-independent way.
[ { "created": "Fri, 16 May 2008 04:51:31 GMT", "version": "v1" } ]
2008-11-26
[ [ "Hwang", "Chien-Wen", "" ] ]
We study the hyperfine mass differences of heavy hadrons in the heavy quark effect theory (HQET). The effects of one-gluon exchange interaction are considered for the heavy mesons and baryons. Base on the known experimental data, we predict the masses of some heavy baryons in a model-independent way.
1311.5537
Adam Ritz
Maxim Pospelov, Adam Ritz
CKM benchmarks for electron EDM experiments
7 pages, 4 figures; v2: references added
Phys. Rev. D 89, 056006 (2014)
10.1103/PhysRevD.89.056006
null
hep-ph nucl-th physics.atom-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
All current experiments searching for an electron EDM d_e are performed with atoms and diatomic molecules. Motivated by significant recent progress in searches for an EDM-type signal in diatomic molecules with an uncompensated electron spin, we provide an estimate for the expected signal in the Standard Model due to ...
[ { "created": "Thu, 21 Nov 2013 20:21:20 GMT", "version": "v1" }, { "created": "Thu, 28 Nov 2013 16:42:09 GMT", "version": "v2" } ]
2014-03-26
[ [ "Pospelov", "Maxim", "" ], [ "Ritz", "Adam", "" ] ]
All current experiments searching for an electron EDM d_e are performed with atoms and diatomic molecules. Motivated by significant recent progress in searches for an EDM-type signal in diatomic molecules with an uncompensated electron spin, we provide an estimate for the expected signal in the Standard Model due to th...
1901.02253
Wan-Li Ju
Jun Gao, Yinqiang Gong, Wan-Li Ju and Li Lin Yang
Thrust distribution in Higgs decays at the next-to-leading order and beyond
null
null
10.1007/JHEP03(2019)030
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present predictions for the thrust distribution in hadronic decays of the Higgs boson at the next-to-leading order and the approximate next-to-next-to-leading order. The approximate NNLO corrections are derived from a factorization formula in the soft/collinear phase-space regions. We find large corrections, espec...
[ { "created": "Tue, 8 Jan 2019 11:09:04 GMT", "version": "v1" }, { "created": "Sat, 12 Jan 2019 05:49:48 GMT", "version": "v2" }, { "created": "Tue, 5 Mar 2019 03:54:42 GMT", "version": "v3" }, { "created": "Mon, 11 Jul 2022 09:38:21 GMT", "version": "v4" } ]
2022-07-12
[ [ "Gao", "Jun", "" ], [ "Gong", "Yinqiang", "" ], [ "Ju", "Wan-Li", "" ], [ "Yang", "Li Lin", "" ] ]
We present predictions for the thrust distribution in hadronic decays of the Higgs boson at the next-to-leading order and the approximate next-to-next-to-leading order. The approximate NNLO corrections are derived from a factorization formula in the soft/collinear phase-space regions. We find large corrections, especia...
0807.5087
Mihail Chizhov
M. V. Chizhov
Disentangling between Z' and Z* with first LHC data
10 pages, 6 figures, talk prepared for the workshop "Physics Beyond the Standard Model at the LHC", Sao Paulo, Brazil, May 29-30, 2008
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The resonance production of new chiral spin-1 excited bosons, Z*, and their detection through the Drell-Yan process in the first physical runs at the CERN LHC are considered. The new neutral chiral bosons can be observed as a Breit-Wigner resonance peaks in the invariant dilepton mass distribution in the same way as ...
[ { "created": "Thu, 31 Jul 2008 15:11:00 GMT", "version": "v1" } ]
2008-08-01
[ [ "Chizhov", "M. V.", "" ] ]
The resonance production of new chiral spin-1 excited bosons, Z*, and their detection through the Drell-Yan process in the first physical runs at the CERN LHC are considered. The new neutral chiral bosons can be observed as a Breit-Wigner resonance peaks in the invariant dilepton mass distribution in the same way as th...
hep-ph/0601019
Chuan Hung Chen
Chuan-Hung Chen
Polarizations of two vector mesons in B decays
14 pages, 1 figure, typos and references revised
null
null
null
hep-ph hep-ex
null
Inspired by the small longitudinal polarizations (LPs) of $B\to K^* \phi$ decays observed by BELLE and BABAR, we revise the theoretical uncertainties of perturbative QCD approach for determining hard scales of B decays, we find that the LPs of $B\to K^* \phi$ could approach to 60% while the branching ratios (BRs) cou...
[ { "created": "Tue, 3 Jan 2006 17:10:15 GMT", "version": "v1" }, { "created": "Sun, 15 Jan 2006 15:13:51 GMT", "version": "v2" } ]
2016-09-06
[ [ "Chen", "Chuan-Hung", "" ] ]
Inspired by the small longitudinal polarizations (LPs) of $B\to K^* \phi$ decays observed by BELLE and BABAR, we revise the theoretical uncertainties of perturbative QCD approach for determining hard scales of B decays, we find that the LPs of $B\to K^* \phi$ could approach to 60% while the branching ratios (BRs) could...
1508.07002
Stefano Carrazza
Valerio Bertone, Stefano Carrazza, Davide Pagani, Marco Zaro
On the Impact of Lepton PDFs
32 pages, 19 figures, matches published version in JHEP
null
10.1007/JHEP11(2015)194
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we discuss the effect of the complete leading-order QED corrections to the DGLAP equations in the perturbative evolution of parton distribution functions (PDFs). This requires the extension of the purely QCD DGLAP evolution, including a PDF for the photons and, consistently, also for the charged leptons...
[ { "created": "Thu, 27 Aug 2015 20:08:51 GMT", "version": "v1" }, { "created": "Thu, 26 Nov 2015 17:32:54 GMT", "version": "v2" } ]
2016-01-27
[ [ "Bertone", "Valerio", "" ], [ "Carrazza", "Stefano", "" ], [ "Pagani", "Davide", "" ], [ "Zaro", "Marco", "" ] ]
In this paper we discuss the effect of the complete leading-order QED corrections to the DGLAP equations in the perturbative evolution of parton distribution functions (PDFs). This requires the extension of the purely QCD DGLAP evolution, including a PDF for the photons and, consistently, also for the charged leptons $...
1412.5266
Bo-Qiang Ma
Yujie Chi, Xiaozhen Du, Bo-Qiang Ma
Nucleon strange $s\bar s$ asymmetry to the $\Lambda/\bar\Lambda$ fragmentation
10 latex pages, 5 figures, final version in journal publication. arXiv admin note: text overlap with arXiv:1310.2005
Phys. Rev. D 90, 074003 (2014)
10.1103/PhysRevD.90.074003
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The difference between the $\Lambda$ and $\bar \Lambda$ longitudinal spin transfers in the semi-inclusive deep inelastic scattering process is intensively studied. The study is performed in the current fragmentation region, by considering the intermediate hyperon decay processes and sea quark fragmentation processes,...
[ { "created": "Wed, 17 Dec 2014 06:20:23 GMT", "version": "v1" } ]
2014-12-18
[ [ "Chi", "Yujie", "" ], [ "Du", "Xiaozhen", "" ], [ "Ma", "Bo-Qiang", "" ] ]
The difference between the $\Lambda$ and $\bar \Lambda$ longitudinal spin transfers in the semi-inclusive deep inelastic scattering process is intensively studied. The study is performed in the current fragmentation region, by considering the intermediate hyperon decay processes and sea quark fragmentation processes, w...
hep-ph/9903261
null
R. N. Mohapatra
Sterile Neutrinos
Invited talk at the COSMO98 workshop; 8 pages; (to appear in the proceedings)
null
null
null
hep-ph
null
A simultaneous understanding of the results of the LSND experiment indicating $\nu_{\mu}-\nu_e$ oscillation together with other evidences for neutrino oscillations from solar and atmospheric neutrino data seems to require the existence of at least one sterile neutrino. One can also give other plausible astrophysical ...
[ { "created": "Thu, 4 Mar 1999 18:59:39 GMT", "version": "v1" } ]
2007-05-23
[ [ "Mohapatra", "R. N.", "" ] ]
A simultaneous understanding of the results of the LSND experiment indicating $\nu_{\mu}-\nu_e$ oscillation together with other evidences for neutrino oscillations from solar and atmospheric neutrino data seems to require the existence of at least one sterile neutrino. One can also give other plausible astrophysical ar...