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2007.05082
Rui Santos
Da Huang, Ant\'onio P. Morais, Rui Santos
Anomalies in $B$ Decays and Muon $g-2$ from Dark Loops
33 pages, 8 figures
Phys. Rev. D 102, 075009 (2020)
10.1103/PhysRevD.102.075009
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore a class of models which can provide a common origin for the recently observed evidence for lepton flavor universality violation in $b \to s l^+ l^- $ decays, the dark matter (DM) problem and the long-standing muon $(g-2)$ anomaly. In particular, both anomalies in the $B$ meson decays and the muon $(g-2)$ c...
[ { "created": "Thu, 9 Jul 2020 21:48:51 GMT", "version": "v1" } ]
2020-10-14
[ [ "Huang", "Da", "" ], [ "Morais", "António P.", "" ], [ "Santos", "Rui", "" ] ]
We explore a class of models which can provide a common origin for the recently observed evidence for lepton flavor universality violation in $b \to s l^+ l^- $ decays, the dark matter (DM) problem and the long-standing muon $(g-2)$ anomaly. In particular, both anomalies in the $B$ meson decays and the muon $(g-2)$ can...
1611.03710
Pedro Gonzalez
P. Gonz\'alez
A quark model study of strong decays of $X\left( 3915\right) $
17 pages, 4 figures
J. Phys. G 44 (2017) 075004
10.1088/1361-6471/aa6d8a
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Strong decays of $X\left( 3915\right) $ are analyzed from two quark model descriptions of $X\left( 3915\right) $, a conventional one in terms of the Cornell potential and an unconventional one from a Generalized Screened potential. We conclude that the experimental suppression of the OZI allowed decay $X\left( 3915\r...
[ { "created": "Fri, 11 Nov 2016 14:10:04 GMT", "version": "v1" } ]
2017-06-01
[ [ "González", "P.", "" ] ]
Strong decays of $X\left( 3915\right) $ are analyzed from two quark model descriptions of $X\left( 3915\right) $, a conventional one in terms of the Cornell potential and an unconventional one from a Generalized Screened potential. We conclude that the experimental suppression of the OZI allowed decay $X\left( 3915\rig...
1203.1581
Jan Heisig
Jan Heisig and J\"orn Kersten
Long-lived staus from strong production in a simplified model approach
25 pages + references, 27 eps figures; v3: Matches journal version, typo in table 1 corrected
Phys. Rev. D86 (2012) 055020
10.1103/PhysRevD.86.055020
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the phenomenology of a supersymmetric scenario where the next-to-lightest superparticle is the lighter stau and long-lived due to a very weakly coupled lightest superparticle, such as the gravitino. We investigate the LHC sensitivity and its dependence on the superparticle spectrum with an emphasis on strong...
[ { "created": "Wed, 7 Mar 2012 19:41:06 GMT", "version": "v1" }, { "created": "Thu, 12 Jul 2012 18:37:56 GMT", "version": "v2" }, { "created": "Sat, 22 Dec 2012 17:52:56 GMT", "version": "v3" } ]
2012-12-27
[ [ "Heisig", "Jan", "" ], [ "Kersten", "Jörn", "" ] ]
We study the phenomenology of a supersymmetric scenario where the next-to-lightest superparticle is the lighter stau and long-lived due to a very weakly coupled lightest superparticle, such as the gravitino. We investigate the LHC sensitivity and its dependence on the superparticle spectrum with an emphasis on strong p...
0811.4457
Francis-Yan Cyr-Racine
Francis-Yan Cyr-Racine and Robert H. Brandenberger
Study of the Growth of Entropy Modes in MSSM Flat Directions Decay: Constraints on the Parameter Space
6 pages, 1 figure, revtex4, comments added in section II, 1 reference added
JCAP 0902:022,2009
10.1088/1475-7516/2009/02/022
null
hep-ph astro-ph gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study how the resonant decay of moduli fields arising in the Minimal Supersymmetric Standard Model (MSSM) could affect large scale curvature perturbations in the early universe. It has been known for some time that the presence of entropy perturbations in a multi-component system can act as seeds for the curvature...
[ { "created": "Thu, 27 Nov 2008 00:28:43 GMT", "version": "v1" }, { "created": "Mon, 5 Jan 2009 22:00:47 GMT", "version": "v2" } ]
2009-03-24
[ [ "Cyr-Racine", "Francis-Yan", "" ], [ "Brandenberger", "Robert H.", "" ] ]
We study how the resonant decay of moduli fields arising in the Minimal Supersymmetric Standard Model (MSSM) could affect large scale curvature perturbations in the early universe. It has been known for some time that the presence of entropy perturbations in a multi-component system can act as seeds for the curvature p...
hep-ph/0108108
Venya Berezinsky
V. Berezinsky and M.Lissia
Electron-neutrino survival probability from solar-neutrino data
9 pages, 3 figures, references added
Phys.Lett.B521:287-290,2001
10.1016/S0370-2693(01)01212-6
null
hep-ph astro-ph
null
With SNO data on electron-neutrino flux from the sun, it is possible to derive the $\nu_e$ survival probability $P_{ee}(E)$ from existing experimental data of Super-Kamiokande, gallium experiments and Homestake. The combined data of SNO and Super-Kamiokande provide boron $\nu_e$ flux and the total flux of all active ...
[ { "created": "Mon, 13 Aug 2001 07:55:35 GMT", "version": "v1" }, { "created": "Tue, 28 Aug 2001 13:23:54 GMT", "version": "v2" } ]
2011-01-04
[ [ "Berezinsky", "V.", "" ], [ "Lissia", "M.", "" ] ]
With SNO data on electron-neutrino flux from the sun, it is possible to derive the $\nu_e$ survival probability $P_{ee}(E)$ from existing experimental data of Super-Kamiokande, gallium experiments and Homestake. The combined data of SNO and Super-Kamiokande provide boron $\nu_e$ flux and the total flux of all active bo...
2310.06897
Vinicius Mikuni
Erik Buhmann, Cedric Ewen, Gregor Kasieczka, Vinicius Mikuni, Benjamin Nachman, David Shih
Full Phase Space Resonant Anomaly Detection
10 pages, 7 figures
Phys. Rev. D 109, 055015 (2024)
null
null
hep-ph hep-ex physics.data-an
http://creativecommons.org/licenses/by/4.0/
Physics beyond the Standard Model that is resonant in one or more dimensions has been a longstanding focus of countless searches at colliders and beyond. Recently, many new strategies for resonant anomaly detection have been developed, where sideband information can be used in conjunction with modern machine learning...
[ { "created": "Tue, 10 Oct 2023 18:00:13 GMT", "version": "v1" }, { "created": "Wed, 1 Nov 2023 18:23:15 GMT", "version": "v2" }, { "created": "Fri, 9 Feb 2024 19:21:15 GMT", "version": "v3" } ]
2024-03-18
[ [ "Buhmann", "Erik", "" ], [ "Ewen", "Cedric", "" ], [ "Kasieczka", "Gregor", "" ], [ "Mikuni", "Vinicius", "" ], [ "Nachman", "Benjamin", "" ], [ "Shih", "David", "" ] ]
Physics beyond the Standard Model that is resonant in one or more dimensions has been a longstanding focus of countless searches at colliders and beyond. Recently, many new strategies for resonant anomaly detection have been developed, where sideband information can be used in conjunction with modern machine learning, ...
1107.0598
Mikhail Ivanov
Mikhail A. Ivanov and Martin Schmid
Integrating out the heaviest quark in N--flavour ChPT
18 pages, 1 figure. Text and references added. To appear in EPJC
Eur.Phys.J.C71:1732,2011
10.1140/epjc/s10052-011-1732-0
null
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We extend a known method to integrate out the strange quark in three flavour chiral perturbation theory to the context of an arbitrary number of flavours. As an application, we present the explicit formulae to one--loop accuracy for the heavy quark mass dependency of the low energy constants after decreasing the numb...
[ { "created": "Mon, 4 Jul 2011 11:35:36 GMT", "version": "v1" }, { "created": "Fri, 19 Aug 2011 09:23:27 GMT", "version": "v2" } ]
2011-09-23
[ [ "Ivanov", "Mikhail A.", "" ], [ "Schmid", "Martin", "" ] ]
We extend a known method to integrate out the strange quark in three flavour chiral perturbation theory to the context of an arbitrary number of flavours. As an application, we present the explicit formulae to one--loop accuracy for the heavy quark mass dependency of the low energy constants after decreasing the number...
2402.00628
Georg Wolschin
Johannes Hoelck and Georg Wolschin
Cylindrically symmetric diffusion model for relativistic heavy-ion collisions
19 pages, 7 figures. Invited article for Annalen der Physik
Annalen Phys. 536, 2300307 (2024)
10.1002/andp.202300307
null
hep-ph nucl-th
http://creativecommons.org/licenses/by-nc-nd/4.0/
A relativistic diffusion model with cylindrical symmetry, which propagates an initial state based on quantum chromodynamics in time towards a thermal equilibrium limit, is derived from nonequilibrium-statistical considerations: Adapting an existing framework for Markovian stochastic processes representing relativisti...
[ { "created": "Thu, 1 Feb 2024 14:44:35 GMT", "version": "v1" } ]
2024-03-29
[ [ "Hoelck", "Johannes", "" ], [ "Wolschin", "Georg", "" ] ]
A relativistic diffusion model with cylindrical symmetry, which propagates an initial state based on quantum chromodynamics in time towards a thermal equilibrium limit, is derived from nonequilibrium-statistical considerations: Adapting an existing framework for Markovian stochastic processes representing relativistic ...
1101.3867
Luca Merlo Dr.
Luca Merlo
Bimaximal Neutrino Mixing with Discrete Flavour Symmetries
8 pages, 1 figure; contribution prepared for DISCRETE'10 - Symposium on Prospects in the Physics of Discrete Symmetries
null
10.1088/1742-6596/335/1/012049
TUM-HEP-790/11
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In view of the fact that the data on neutrino mixing are still compatible with a situation where Bimaximal mixing is valid in first approximation and it is then corrected by terms of order of the Cabibbo angle, we present examples where these properties are naturally realized. The models are supersymmetric in 4-dimen...
[ { "created": "Thu, 20 Jan 2011 11:27:42 GMT", "version": "v1" } ]
2015-05-27
[ [ "Merlo", "Luca", "" ] ]
In view of the fact that the data on neutrino mixing are still compatible with a situation where Bimaximal mixing is valid in first approximation and it is then corrected by terms of order of the Cabibbo angle, we present examples where these properties are naturally realized. The models are supersymmetric in 4-dimensi...
0706.1150
Yeo Woong Yoon
C.S. Kim, Sechul Oh, Chandradew Sharma, Rahul Sinha, Yeo Woong Yoon
Generalized analysis on $B\to K^* \rho$ within and beyond the Standard Model $-$ Can it help understand the $B \to K \pi$ puzzle?
25 pages, 2 figures
Phys.Rev.D76:074019,2007
10.1103/PhysRevD.76.074019
IMSc/2006/12/27
hep-ph
null
We study $B \to K^* \rho$ modes that are analogues of the much studied $B\to K \pi$ modes with B decaying to two vector mesons instead of pseudoscalar mesons, using topological amplitudes in the quark diagram approach. We show how $B \to K^*\rho$ modes can be used to obtain many more observables than those for $B \to...
[ { "created": "Fri, 8 Jun 2007 10:11:31 GMT", "version": "v1" } ]
2008-11-26
[ [ "Kim", "C. S.", "" ], [ "Oh", "Sechul", "" ], [ "Sharma", "Chandradew", "" ], [ "Sinha", "Rahul", "" ], [ "Yoon", "Yeo Woong", "" ] ]
We study $B \to K^* \rho$ modes that are analogues of the much studied $B\to K \pi$ modes with B decaying to two vector mesons instead of pseudoscalar mesons, using topological amplitudes in the quark diagram approach. We show how $B \to K^*\rho$ modes can be used to obtain many more observables than those for $B \to K...
1211.1962
Patrik Svantesson
Alexander Belyaev, Jonathan P. Hall, Stephen F. King, Patrik Svantesson
Discovering $E_6$ SUSY models in gluino cascade decays at the LHC
36 pages, 15 figures
null
10.1103/PhysRevD.87.035019
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We point out that the extra neutralinos and charginos generically appearing in a large class of $E_6$ inspired models lead to distinctive signatures from gluino cascade decays in comparison to those from the Minimal Supersymmetric Standard Model (MSSM). These signatures involve longer decay chains, more visible trans...
[ { "created": "Thu, 8 Nov 2012 20:14:56 GMT", "version": "v1" } ]
2013-03-14
[ [ "Belyaev", "Alexander", "" ], [ "Hall", "Jonathan P.", "" ], [ "King", "Stephen F.", "" ], [ "Svantesson", "Patrik", "" ] ]
We point out that the extra neutralinos and charginos generically appearing in a large class of $E_6$ inspired models lead to distinctive signatures from gluino cascade decays in comparison to those from the Minimal Supersymmetric Standard Model (MSSM). These signatures involve longer decay chains, more visible transve...
0710.4169
Alfonso Rosado
J.L. Diaz-Cruz, J. Hernandez-Sanchez, S. Moretti and A. Rosado
Charged Higgs boson phenomenology in Supersymmetric models with Higgs triplets
49 pages, 43 figures
Phys.Rev.D77:035007,2008
10.1103/PhysRevD.77.035007
null
hep-ph
null
We present a detailed study of the Higgs sector within an extension of the Minimal Supersymmetric Standard Model that includes one Complex Higgs Triplet (MSSM+1CHT). The model spectrum includes three singly charged Higgs bosons as well as three CP-even (or scalar) and two CP-odd (or pseudoscalar) neutral Higgs bosons...
[ { "created": "Tue, 23 Oct 2007 00:13:31 GMT", "version": "v1" }, { "created": "Thu, 3 Jan 2008 22:47:54 GMT", "version": "v2" } ]
2008-11-26
[ [ "Diaz-Cruz", "J. L.", "" ], [ "Hernandez-Sanchez", "J.", "" ], [ "Moretti", "S.", "" ], [ "Rosado", "A.", "" ] ]
We present a detailed study of the Higgs sector within an extension of the Minimal Supersymmetric Standard Model that includes one Complex Higgs Triplet (MSSM+1CHT). The model spectrum includes three singly charged Higgs bosons as well as three CP-even (or scalar) and two CP-odd (or pseudoscalar) neutral Higgs bosons. ...
1111.7213
Philipp Kant
Philipp Kant
Three-Loop Calculation of the Higgs Boson Mass in Supersymmetry
Talk given at ACAT 2011 conference in London, 5-9 September
null
10.1088/1742-6596/368/1/012053
HU-EP-11/55; SFB/CPP-11-71
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A Key feature of the minimal supersymmetric extension of the Standard Model (MSSM) is the existence of a light Higgs boson, the mass of which is not a free parameter but an observable that can be predicted from the theory. Given that the LHC is able to measure the mass of a light Higgs with very good accuracy, a lot ...
[ { "created": "Wed, 30 Nov 2011 15:39:51 GMT", "version": "v1" } ]
2015-06-03
[ [ "Kant", "Philipp", "" ] ]
A Key feature of the minimal supersymmetric extension of the Standard Model (MSSM) is the existence of a light Higgs boson, the mass of which is not a free parameter but an observable that can be predicted from the theory. Given that the LHC is able to measure the mass of a light Higgs with very good accuracy, a lot of...
hep-ph/9503493
German Valencia
G. Valencia (Iowa State University)
Experimental Signatures of a Parity Violating Anomalous Coupling $g_5^Z$
10 pages LaTeX, 2 postscript figures, uses epsf Invited talk at the International Symposium on Vector Boson Self-Interactions, UCLA 1995
null
10.1063/1.49301
ISU-HET-95-2
hep-ph
null
I discuss the experimental signatures of a parity violating but CP conserving interaction in the symmetry breaking sector of the electroweak theory.
[ { "created": "Sat, 1 Apr 1995 22:09:34 GMT", "version": "v1" } ]
2009-10-28
[ [ "Valencia", "G.", "", "Iowa State University" ] ]
I discuss the experimental signatures of a parity violating but CP conserving interaction in the symmetry breaking sector of the electroweak theory.
hep-ph/9905287
Mankiewicz
L. Mankiewicz and G. Piller
Comments on Exclusive Electroproduction of Transversely Polarized Vector Mesons
null
Phys.Rev. D61 (2000) 074013
10.1103/PhysRevD.61.074013
TUM/T39-99-6
hep-ph
null
We discuss the electroproduction of light vector mesons from transversely polarized photons. Here QCD factorization cannot be applied as shown explicitly in a leading order calculation of corresponding Feynman diagrams. It is emphasized that present infrared singular contributions cannot be regularized through phenom...
[ { "created": "Mon, 10 May 1999 14:18:29 GMT", "version": "v1" } ]
2009-10-31
[ [ "Mankiewicz", "L.", "" ], [ "Piller", "G.", "" ] ]
We discuss the electroproduction of light vector mesons from transversely polarized photons. Here QCD factorization cannot be applied as shown explicitly in a leading order calculation of corresponding Feynman diagrams. It is emphasized that present infrared singular contributions cannot be regularized through phenomen...
hep-ph/0204295
Marina Markina
B.L.Ioffe
Landau's Theoretical Minimum, Landau's Seminar, ITEP in the Beginning of the 1950's
Concluding talk at the Workshop ``QCD at the threshold of the fourth decide /Ioffefest", Gif-sur-Yvette, France, 3-5 September, 2001, 15 p., no figures, uses sprocle style. To be publish in: At the frontier of Particle Physics, Handbook of QCD, Boris Ioffe Festschrift, vol.4, edited by M.Shifman, World Scientif...
null
null
null
hep-ph
null
I recollect on the organization of the Landau school and describe the early history of the ITEP Theory Department, as well as the history of creation of famous Landau, Abrikosov, and Khalatnikov's papers, and Landau's papers on P-parity violation and CP-conservation. The recollections carry an imprint of the epoch lo...
[ { "created": "Thu, 25 Apr 2002 13:08:31 GMT", "version": "v1" } ]
2007-05-23
[ [ "Ioffe", "B. L.", "" ] ]
I recollect on the organization of the Landau school and describe the early history of the ITEP Theory Department, as well as the history of creation of famous Landau, Abrikosov, and Khalatnikov's papers, and Landau's papers on P-parity violation and CP-conservation. The recollections carry an imprint of the epoch long...
2108.04122
Aurore Courtoy
Aurore Courtoy and Pavel M. Nadolsky
Nucleon and pion PDFs: large-x asymptotics meets functional mimicry
7 pages, 3 figures, presented at the XXVIII International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS 2021), Stony Brook University, New York, USA, 12-16 April 2021; for submission to SciPost Physics Proceedings
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We review strategies to unveil the primordial large-$x$ structure of the nucleons as well as the pion from hard-scattering experiments. Ideas are presented for learning about the $x\to 1$ limit of nonperturbative QCD dynamics at energy scales of order 1 GeV from collider experiments at much higher scales. The behavio...
[ { "created": "Mon, 9 Aug 2021 15:47:15 GMT", "version": "v1" } ]
2021-08-10
[ [ "Courtoy", "Aurore", "" ], [ "Nadolsky", "Pavel M.", "" ] ]
We review strategies to unveil the primordial large-$x$ structure of the nucleons as well as the pion from hard-scattering experiments. Ideas are presented for learning about the $x\to 1$ limit of nonperturbative QCD dynamics at energy scales of order 1 GeV from collider experiments at much higher scales. The behavior ...
hep-ph/9401273
Martin John Savage
Martin J. Savage
Long-Distance Contributions to the $\Lambda_b\rightarrow\Lambda_ce^-\overline{\nu}_e$ Isgur-Wise Function
13 pages, 1 uuencoded figure included, uses harvmac and epsf, CMU-HEP 94-04
Phys.Lett.B325:488-494,1994
10.1016/0370-2693(94)90044-2
null
hep-ph
null
The six independent formfactors describing the weak decay \semi\ are determined in terms of one universal function when both the $b$ and $c$ quarks are treated as heavy. The relations between these formfactors are modified by terms suppressed by inverse powers of the charm quark mass. We compute the formally leading ...
[ { "created": "Mon, 17 Jan 1994 18:06:42 GMT", "version": "v1" } ]
2011-07-19
[ [ "Savage", "Martin J.", "" ] ]
The six independent formfactors describing the weak decay \semi\ are determined in terms of one universal function when both the $b$ and $c$ quarks are treated as heavy. The relations between these formfactors are modified by terms suppressed by inverse powers of the charm quark mass. We compute the formally leading lo...
hep-ph/9901449
Valerie Nowak
Stephen L. Adler
Higgs Mass Bounds in the Three- and Six-Higgs Doublet Models for Family Structure
32 pages, plain tex, 2 tables
Phys. Rev. D 60, 015002 (1999)
10.1103/PhysRevD.60.015002
IASSNS-HEP-99/01
hep-ph
null
We reanalyze our recently proposed mass matrix model based on spontaneously broken discrete chiral family symmetry, taking into account the additional flavor changing neutral current constraint implied by the bound on the $D_1-D_2$ mass difference, and including several corrections to our earlier analysis. When combi...
[ { "created": "Fri, 29 Jan 1999 16:10:40 GMT", "version": "v1" }, { "created": "Tue, 2 Feb 1999 19:46:27 GMT", "version": "v2" }, { "created": "Wed, 3 Feb 1999 21:11:07 GMT", "version": "v3" } ]
2016-08-25
[ [ "Adler", "Stephen L.", "" ] ]
We reanalyze our recently proposed mass matrix model based on spontaneously broken discrete chiral family symmetry, taking into account the additional flavor changing neutral current constraint implied by the bound on the $D_1-D_2$ mass difference, and including several corrections to our earlier analysis. When combine...
1109.6526
Sanjib Kumar Agarwalla
Sanjib Kumar Agarwalla, Tracey Li, Andre Rubbia
An incremental approach to unravel the neutrino mass hierarchy and CP violation with a long-baseline Superbeam for large $\theta_{13}$
30 pages, 32 pdf figures, 6 tables
null
10.1007/JHEP05(2012)154
EURONU-WP6-11-38, IFIC/11-48
hep-ph hep-ex physics.ins-det
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recent data from long-baseline neutrino oscillation experiments have provided new information on \theta_{13}, hinting that 0.01\lesssim sin^2 2\theta_{13} \lesssim 0.1 at 2 sigma C.L. Confirmation of this result with high significance will have a crucial impact on the optimization of the future long-baseline oscillat...
[ { "created": "Thu, 29 Sep 2011 13:57:52 GMT", "version": "v1" } ]
2015-05-30
[ [ "Agarwalla", "Sanjib Kumar", "" ], [ "Li", "Tracey", "" ], [ "Rubbia", "Andre", "" ] ]
Recent data from long-baseline neutrino oscillation experiments have provided new information on \theta_{13}, hinting that 0.01\lesssim sin^2 2\theta_{13} \lesssim 0.1 at 2 sigma C.L. Confirmation of this result with high significance will have a crucial impact on the optimization of the future long-baseline oscillatio...
hep-ph/0612026
Peter Kroll
P. Kroll (Wuppertal Univ.)
GPDs, the structure of the proton and wide-angle Compton scattering
11 pages, 16 figures, using aipproc.cls, aipxfm.sty, aip-8s.clo talk presented at the workshop on the Shape of Hadrons, Athens (2006)
AIP Conf.Proc.904:76-86,2007
10.1063/1.2734293
null
hep-ph
null
Results from a recent analysis of the zero-skewness generalized parton distributions (GPDs) for valence quarks are reviewed. The analysis bases on a physically motivated parameterization of the GPDs with a few free parameters adjusted to the nucleon form factor data. Results for the GPDs are presented and a number of...
[ { "created": "Mon, 4 Dec 2006 11:56:58 GMT", "version": "v1" } ]
2011-04-11
[ [ "Kroll", "P.", "", "Wuppertal Univ." ] ]
Results from a recent analysis of the zero-skewness generalized parton distributions (GPDs) for valence quarks are reviewed. The analysis bases on a physically motivated parameterization of the GPDs with a few free parameters adjusted to the nucleon form factor data. Results for the GPDs are presented and a number of a...
1402.7348
Michael Strickland
Wojciech Florkowski, Ewa Maksymiuk, Radoslaw Ryblewski, and Michael Strickland
Exact solution of the (0+1)-dimensional Boltzmann equation for a massive gas
23 pages, 8 figures
Phys. Rev. C 89, 054908 (2014)
10.1103/PhysRevC.89.054908
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We solve the one-dimensional boost-invariant kinetic equation for a relativistic massive system with the collision term treated in the relaxation time approximation. The result is an exact integral equation which can be solved numerically by the method of iteration to arbitrary precision. We compare predictions for t...
[ { "created": "Fri, 28 Feb 2014 19:08:15 GMT", "version": "v1" } ]
2014-05-22
[ [ "Florkowski", "Wojciech", "" ], [ "Maksymiuk", "Ewa", "" ], [ "Ryblewski", "Radoslaw", "" ], [ "Strickland", "Michael", "" ] ]
We solve the one-dimensional boost-invariant kinetic equation for a relativistic massive system with the collision term treated in the relaxation time approximation. The result is an exact integral equation which can be solved numerically by the method of iteration to arbitrary precision. We compare predictions for the...
1610.01027
Tommi Alanne
Tommi Alanne
Vacuum alignment and radiatively induced Fermi scale
7 pages. To appear in the proceedings of the 5th International Conference on New Frontiers in Physics ICNFP2016, July 06 - 14, 2016. Based on arXiv:1511.01910 and arXiv:1608.07442. arXiv admin note: text overlap with arXiv:1609.08491
null
10.1051/epjconf/201716407056
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We extend the discussion about vacuum misalignment by quantum corrections in models with composite pseudo-Goldstone Higgs boson to renormalisable models with elementary scalars. As a concrete example, we propose a framework, where the hierarchy between the unification and the Fermi scale emerges radiatively. This sce...
[ { "created": "Tue, 4 Oct 2016 14:45:19 GMT", "version": "v1" } ]
2018-02-14
[ [ "Alanne", "Tommi", "" ] ]
We extend the discussion about vacuum misalignment by quantum corrections in models with composite pseudo-Goldstone Higgs boson to renormalisable models with elementary scalars. As a concrete example, we propose a framework, where the hierarchy between the unification and the Fermi scale emerges radiatively. This scena...
hep-ph/9501354
Ian Hinchliffe
Ian Hinchliffe, Lawrence Berkeley Lab
Current Issues in Perturbative QCD
10 uuencoded gzipped encapsulated postscript figures. Complete postscript version at http://theor1.lbl.gov/www/theorygroup/papers/36374.ps
null
null
LBL- 36374
hep-ph
null
Invited talk presented at the 1994 Meeting of The Division of Particles and Fields of the American Physical Society, Albuquerque NM, August 1-6, 1994
[ { "created": "Fri, 20 Jan 1995 21:32:05 GMT", "version": "v1" }, { "created": "Sun, 22 Jan 1995 22:34:16 GMT", "version": "v2" } ]
2016-09-01
[ [ "Hinchliffe", "Ian", "" ], [ "Lab", "Lawrence Berkeley", "" ] ]
Invited talk presented at the 1994 Meeting of The Division of Particles and Fields of the American Physical Society, Albuquerque NM, August 1-6, 1994
1910.01457
Cem Salih Un
Zafer Altin, Ali Cici, Zerrin Kirca, Qaisar Shafi and Cem Salih Un
Gluino Search with Stop and Top in Nonuniversal Gaugino Mass Models at LHC and Future Colliders
null
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the gluino mass in the CMSSM and Nonuniversal Gaugino Mass Models (NUGM) frameworks in light of the results from the current LHC and Dark Matter experiments. We probe the gluino mass scales by considering its decay modes into stop and top quarks, $\tilde{g}\rightarrow \tilde{t}_{1}t$ and $\tilde{g}\rightar...
[ { "created": "Thu, 3 Oct 2019 13:29:10 GMT", "version": "v1" } ]
2019-10-04
[ [ "Altin", "Zafer", "" ], [ "Cici", "Ali", "" ], [ "Kirca", "Zerrin", "" ], [ "Shafi", "Qaisar", "" ], [ "Un", "Cem Salih", "" ] ]
We discuss the gluino mass in the CMSSM and Nonuniversal Gaugino Mass Models (NUGM) frameworks in light of the results from the current LHC and Dark Matter experiments. We probe the gluino mass scales by considering its decay modes into stop and top quarks, $\tilde{g}\rightarrow \tilde{t}_{1}t$ and $\tilde{g}\rightarro...
hep-ph/0411063
Luis Roca
J. E. Palomar, L. Roca, E. Oset, M. J. Vicente Vacas
Radiative vector meson decay
Prepared for the 10th International Symposium on Meson-Nucleon Physics and the Structure of the Nucleon
Int.J.Mod.Phys.A20:1901-1904,2005
10.1142/S0217751X05023591
null
hep-ph
null
We study the radiative $\rho$, $\omega$ and $\phi$ decay into $\pi^0 \pi^0 \gamma$ and $\pi^0 \eta \gamma $ taking into account mechanisms in which there are two sequential vector-vector-pseudoscalar or axial-vector--vector--pseudoscalar steps followed by the coupling of a vector meson to the photon, considering the ...
[ { "created": "Thu, 4 Nov 2004 13:40:07 GMT", "version": "v1" } ]
2011-02-09
[ [ "Palomar", "J. E.", "" ], [ "Roca", "L.", "" ], [ "Oset", "E.", "" ], [ "Vacas", "M. J. Vicente", "" ] ]
We study the radiative $\rho$, $\omega$ and $\phi$ decay into $\pi^0 \pi^0 \gamma$ and $\pi^0 \eta \gamma $ taking into account mechanisms in which there are two sequential vector-vector-pseudoscalar or axial-vector--vector--pseudoscalar steps followed by the coupling of a vector meson to the photon, considering the fi...
hep-ph/0011368
Stefano Frixione
M. Cacciari (SUNY), V. Del Duca (INFN), S. Frixione (INFN), Z. Trocsanyi (Debrecen)
QCD radiative corrections to $\gamma^*\gamma^* \to$ hadrons
25 pages Latex; 1 style file and 14 figures included
JHEP 0102 (2001) 029
10.1088/1126-6708/2001/02/029
YITP-SB-00-75, GEF-TH-7/2000
hep-ph
null
We compute the order-$\as$ corrections to the total cross section and to jet rates for the process $\epem\to\epem +$ hadrons, where the hadrons are produced through crossed-channel quark exchange in the hard scattering of two off-shell photons originating from the incoming leptons. We use a next-to-leading order gene...
[ { "created": "Wed, 29 Nov 2000 17:05:02 GMT", "version": "v1" } ]
2009-10-31
[ [ "Cacciari", "M.", "", "SUNY" ], [ "Del Duca", "V.", "", "INFN" ], [ "Frixione", "S.", "", "INFN" ], [ "Trocsanyi", "Z.", "", "Debrecen" ] ]
We compute the order-$\as$ corrections to the total cross section and to jet rates for the process $\epem\to\epem +$ hadrons, where the hadrons are produced through crossed-channel quark exchange in the hard scattering of two off-shell photons originating from the incoming leptons. We use a next-to-leading order genera...
1701.07839
Barbara Pasquini
S. Kofler (Graz U.), B. Pasquini (Pavia U. & INFN, Pavia)
Collinear parton distributions and the structure of the nucleon sea in a light-front meson-cloud model
20 pages, 9 figures
Phys. Rev. D 95, 094015 (2017)
10.1103/PhysRevD.95.094015
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The unpolarized, helicity and transversity parton distribution functions of the nucleon are studied within a convolution model where the bare nucleon is dressed by its virtual meson cloud. Using light-front time-ordered perturbation theory, the Fock states of the physical nucleon are expanded in a series involving a ...
[ { "created": "Thu, 26 Jan 2017 19:03:13 GMT", "version": "v1" } ]
2017-05-31
[ [ "Kofler", "S.", "", "Graz U." ], [ "Pasquini", "B.", "", "Pavia U. & INFN, Pavia" ] ]
The unpolarized, helicity and transversity parton distribution functions of the nucleon are studied within a convolution model where the bare nucleon is dressed by its virtual meson cloud. Using light-front time-ordered perturbation theory, the Fock states of the physical nucleon are expanded in a series involving a ba...
1211.5467
Simon Platzer
Simon Platzer
Controlling inclusive cross sections in parton shower + matrix element merging
9 pages, 2 figures; references updated
null
10.1007/JHEP08(2013)114
DESY 12-215; MCnet-12-13
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose an extension of matrix element plus parton shower merging at tree level to preserve inclusive cross sections obtained from the merged and showered sample. Implementing this constraint generates approximate next-to-leading order (NLO) contributions similar to the LoopSim approach. We then show how full NLO,...
[ { "created": "Fri, 23 Nov 2012 11:00:59 GMT", "version": "v1" }, { "created": "Mon, 3 Dec 2012 12:48:15 GMT", "version": "v2" } ]
2015-06-12
[ [ "Platzer", "Simon", "" ] ]
We propose an extension of matrix element plus parton shower merging at tree level to preserve inclusive cross sections obtained from the merged and showered sample. Implementing this constraint generates approximate next-to-leading order (NLO) contributions similar to the LoopSim approach. We then show how full NLO, o...
1702.01930
Lei Wang
Christoph Englert, Qiang Li, Michael Spannowsky, Mengmeng Wang, Lei Wang
VBS ${\rm W}^\pm {\rm W}^\pm {\rm H}$ production at the HL-LHC and a 100 TeV pp-collider
12 pages, 6 figures
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
${\rm W}^\pm {\rm W}^\pm {\rm H}$ production at hadron colliders through vector boson scattering is a so far unconsidered process, which leads to a clean signature of two same-sign charged leptons and two widely separated jets. This process is sensitive to the ${\rm HHH}$ and ${\rm WWHH}$ couplings and any deviation ...
[ { "created": "Tue, 7 Feb 2017 09:11:16 GMT", "version": "v1" } ]
2017-02-08
[ [ "Englert", "Christoph", "" ], [ "Li", "Qiang", "" ], [ "Spannowsky", "Michael", "" ], [ "Wang", "Mengmeng", "" ], [ "Wang", "Lei", "" ] ]
${\rm W}^\pm {\rm W}^\pm {\rm H}$ production at hadron colliders through vector boson scattering is a so far unconsidered process, which leads to a clean signature of two same-sign charged leptons and two widely separated jets. This process is sensitive to the ${\rm HHH}$ and ${\rm WWHH}$ couplings and any deviation of...
1803.10972
David Marzocca
David Marzocca
Addressing the B-physics anomalies in a fundamental Composite Higgs Model
46 pages, 4 figures, 1 table. v3: Minor modifications, matches the published version
null
10.1007/JHEP07(2018)121
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
I present a model addressing coherently the naturalness problem of the electroweak scale and the observed pattern of deviations from the Standard Model in semi-leptonic decays of $B$ mesons. The Higgs and the two scalar leptoquarks responsible for the $B$-physics anomalies, $S_1 = ({\bf \bar 3}, {\bf 1}, 1/3)$ and $S...
[ { "created": "Thu, 29 Mar 2018 09:14:22 GMT", "version": "v1" }, { "created": "Thu, 3 May 2018 09:04:52 GMT", "version": "v2" }, { "created": "Fri, 20 Jul 2018 08:09:13 GMT", "version": "v3" } ]
2018-07-23
[ [ "Marzocca", "David", "" ] ]
I present a model addressing coherently the naturalness problem of the electroweak scale and the observed pattern of deviations from the Standard Model in semi-leptonic decays of $B$ mesons. The Higgs and the two scalar leptoquarks responsible for the $B$-physics anomalies, $S_1 = ({\bf \bar 3}, {\bf 1}, 1/3)$ and $S_3...
1207.5486
Alexander Rothkopf
Alexander Rothkopf
Heavy Quarkonium in the Quark Gluon Plasma from Effective Field Theories and Potentials
Talk given at the 5th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions 2012, to be published in Nucl. Phys. A, 8 pages, 1 figure, (v2 replaced one reference, corrected typos)
null
null
null
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The measurements of heavy quarkonium suppression at RHIC and LHC urge theory to develop intuitive as well as quantitative methods for the description of $Q\bar{Q}$ melting in the quark-gluon plasma. Here I will present a brief sketch on the effective field theory strategies underlying the definition of the heavy quar...
[ { "created": "Mon, 23 Jul 2012 19:11:54 GMT", "version": "v1" }, { "created": "Wed, 29 Aug 2012 07:16:18 GMT", "version": "v2" } ]
2012-08-30
[ [ "Rothkopf", "Alexander", "" ] ]
The measurements of heavy quarkonium suppression at RHIC and LHC urge theory to develop intuitive as well as quantitative methods for the description of $Q\bar{Q}$ melting in the quark-gluon plasma. Here I will present a brief sketch on the effective field theory strategies underlying the definition of the heavy quark ...
hep-ph/0308208
Ralf Lehnert
Ralf Lehnert
Apparent Lorentz violation through spacetime-varying couplings
8 pages; Presented at the 4th Meeting on New Worlds in Astroparticle Physics
null
10.1142/9789812791160_0008
null
hep-ph
null
In this talk, we explore the relation between smoothly varying couplings and Lorentz violation. Within the context of a supergravity model, we present an explicit mechanism that causes the effective fine-structure parameter and the effective electromagnetic $\theta$ angle to acquire related spacetime dependences. We ...
[ { "created": "Wed, 20 Aug 2003 17:12:22 GMT", "version": "v1" } ]
2017-08-23
[ [ "Lehnert", "Ralf", "" ] ]
In this talk, we explore the relation between smoothly varying couplings and Lorentz violation. Within the context of a supergravity model, we present an explicit mechanism that causes the effective fine-structure parameter and the effective electromagnetic $\theta$ angle to acquire related spacetime dependences. We ar...
2211.13168
Debasish Borah
Debasish Borah, Pritam Das, Dibyendu Nanda
Observable ${\rm \Delta{N_{eff}}}$ in Dirac Scotogenic Model
31 pages, 15 captioned figures, matches version accepted for publication in EPJC
null
null
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the possibility of probing the radiative Dirac seesaw model with dark sector particles going inside the loop, popularly referred to as the Dirac scotogenic model via measurements of effective relativistic degrees of freedom ${\rm \Delta{N_{eff}}}$ at cosmic microwave background (CMB) experiments. The loop su...
[ { "created": "Wed, 23 Nov 2022 17:44:51 GMT", "version": "v1" }, { "created": "Thu, 18 Jan 2024 03:29:12 GMT", "version": "v2" } ]
2024-01-19
[ [ "Borah", "Debasish", "" ], [ "Das", "Pritam", "" ], [ "Nanda", "Dibyendu", "" ] ]
We study the possibility of probing the radiative Dirac seesaw model with dark sector particles going inside the loop, popularly referred to as the Dirac scotogenic model via measurements of effective relativistic degrees of freedom ${\rm \Delta{N_{eff}}}$ at cosmic microwave background (CMB) experiments. The loop supp...
1011.5023
Irinel Caprini
Irinel Caprini, Elena-Mirela Babalic
QCD Correlation Functions and the Shape of $K_{\ell 3}$ Form Factors
null
Rom.J.Phys.55:920,2010
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Bounds on the expansion coefficients of the strangeness changing $K\pi$ form factors were derived recently from analyticity and unitarity, using as input suitable correlation functions calculated by perturbative QCD in the Euclidian region. We investigate two types of invariant amplitudes and their corresponding disp...
[ { "created": "Tue, 23 Nov 2010 07:46:20 GMT", "version": "v1" } ]
2011-07-15
[ [ "Caprini", "Irinel", "" ], [ "Babalic", "Elena-Mirela", "" ] ]
Bounds on the expansion coefficients of the strangeness changing $K\pi$ form factors were derived recently from analyticity and unitarity, using as input suitable correlation functions calculated by perturbative QCD in the Euclidian region. We investigate two types of invariant amplitudes and their corresponding disper...
hep-ph/9910528
Claus Bloechinger
C. Bl\"ochinger and H. Fraas
Constraining the Selectron Mass in the Process e^- + gamma --> neutralino_1 +selectron_{L/R}^- --> e^- + 2 neutralino_1
5 pages, LaTeX, 4 ps figures, uses appolb.cls (included); talk presented at the XXIII School of Theoretical Physics, Ustron, Poland, September 15-22, 1999
Acta Phys.Polon.B30:3417-3421,1999
null
WUE-ITP-99-027
hep-ph
null
With the process $e^-\gamma \to \tilde{\chi}_1^0 \tilde{e}_{L/R}^- \to e^- \tilde{\chi}_1^0 \tilde{\chi}_1^0$ it is possible to constrain selectron masses above the kinematical limit of the pair production process in $e^+e^-$ colliders. We investigate these mass ranges and discuss the possibility to test the renormal...
[ { "created": "Thu, 28 Oct 1999 12:12:03 GMT", "version": "v1" } ]
2011-04-15
[ [ "Blöchinger", "C.", "" ], [ "Fraas", "H.", "" ] ]
With the process $e^-\gamma \to \tilde{\chi}_1^0 \tilde{e}_{L/R}^- \to e^- \tilde{\chi}_1^0 \tilde{\chi}_1^0$ it is possible to constrain selectron masses above the kinematical limit of the pair production process in $e^+e^-$ colliders. We investigate these mass ranges and discuss the possibility to test the renormaliz...
1808.08188
We-Fu Chang
We-Fu Chang and John N. Ng
Alternative Perspective on Gauged Lepton Number and Implications for Collider Physics
13 pages, 1 figure. Matches published version
Phys. Rev. D 99, 075025 (2019)
10.1103/PhysRevD.99.075025
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A new anomaly-free gauged $U(1)_\ell$ lepton-number model is studied. Two standard model lepton generations acquire the same but oppositive sign $U(1)_\ell$ charges, while four exotic chiral leptons cancel the anomalies of the remaining lepton family. We discuss a simplified case which has the universal Yukawa coupli...
[ { "created": "Fri, 24 Aug 2018 16:00:03 GMT", "version": "v1" }, { "created": "Thu, 25 Apr 2019 13:13:01 GMT", "version": "v2" } ]
2019-05-01
[ [ "Chang", "We-Fu", "" ], [ "Ng", "John N.", "" ] ]
A new anomaly-free gauged $U(1)_\ell$ lepton-number model is studied. Two standard model lepton generations acquire the same but oppositive sign $U(1)_\ell$ charges, while four exotic chiral leptons cancel the anomalies of the remaining lepton family. We discuss a simplified case which has the universal Yukawa coupling...
0911.1892
Juan Barranco
J. Barranco, A. Bolanos, O.G. Miranda, C.A. Moura and T.I. Rashba
Neutrino phenomenology and unparticle physics
6 pages, 3 Figures. Talk given at CINVESTAV's Advanced Summer School of Physics 2009. Mexico City, Mexico, 27-31 Jul, 2009
AIP Conf.Proc.1287:99-104,2010
10.1063/1.3507431
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show how neutrino data can be used in order to constrain the free parameters of possible extensions to the standard model of elementary particles (SM). For definiteness, we focus in the recently proposed unparticle scenario. We show that neutrino data, in particular the MUNU experiment, can set stronger bounds tha...
[ { "created": "Tue, 10 Nov 2009 12:05:55 GMT", "version": "v1" } ]
2014-11-20
[ [ "Barranco", "J.", "" ], [ "Bolanos", "A.", "" ], [ "Miranda", "O. G.", "" ], [ "Moura", "C. A.", "" ], [ "Rashba", "T. I.", "" ] ]
We show how neutrino data can be used in order to constrain the free parameters of possible extensions to the standard model of elementary particles (SM). For definiteness, we focus in the recently proposed unparticle scenario. We show that neutrino data, in particular the MUNU experiment, can set stronger bounds than ...
1308.5166
Sergey Alekhin
S. Alekhin, J. Bl\"umlein, S. Moch
ABM news and benchmarks
Contribution to the proceedings of the XXI international workshop on Deep-Inelastic Scattering and Related Subjects (DIS2013), Marseille, 22-26 April 2013
null
null
DESY 13--149, DO-TH 13/21, SFB/CPP-13-58, LPN 13-057
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We report on progress in the determination of the unpolarised nucleon PDFs within the ABM global fit framework. The data used in the ABM analysis are updated including the charm-production and the high-Q2 neutral-current samples obtained at the HERA collider, as well as the LHC data on the differential Drell-Yan cros...
[ { "created": "Fri, 23 Aug 2013 16:10:07 GMT", "version": "v1" } ]
2013-08-26
[ [ "Alekhin", "S.", "" ], [ "Blümlein", "J.", "" ], [ "Moch", "S.", "" ] ]
We report on progress in the determination of the unpolarised nucleon PDFs within the ABM global fit framework. The data used in the ABM analysis are updated including the charm-production and the high-Q2 neutral-current samples obtained at the HERA collider, as well as the LHC data on the differential Drell-Yan cross-...
hep-ph/9704229
Roberto Casalbuoni, Firenze
R. Casalbuoni, S. De Curtis, D. Dominici and M. Grazzini
New vector bosons in the electroweak sector: a renormalizable model with decoupling
39 pages, 16 Figures, Latex
Phys.Rev. D56 (1997) 5731-5747
10.1103/PhysRevD.56.5731
DFF 272/02/97
hep-ph
null
A linear realization of a model of dynamical electroweak symmetry breaking describing additional heavy vector bosons is proposed. The model is a SU(2)_L x U(1) x SU(2)_L' x SU(2)_R' gauge theory, breaking at some high scale u to SU(2)_weak x U(1)_Y and breaking again in the standard way at the electroweak scale v to ...
[ { "created": "Fri, 4 Apr 1997 09:09:47 GMT", "version": "v1" } ]
2009-10-30
[ [ "Casalbuoni", "R.", "" ], [ "De Curtis", "S.", "" ], [ "Dominici", "D.", "" ], [ "Grazzini", "M.", "" ] ]
A linear realization of a model of dynamical electroweak symmetry breaking describing additional heavy vector bosons is proposed. The model is a SU(2)_L x U(1) x SU(2)_L' x SU(2)_R' gauge theory, breaking at some high scale u to SU(2)_weak x U(1)_Y and breaking again in the standard way at the electroweak scale v to U(...
2211.13607
Toni M\"akel\"a
Toni M\"akel\"a, Andr\'e Hoang, Katerina Lipka, Sven-Olaf Moch
Single-differential top quark pair production cross sections with running mass schemes at NLO
To appear in the Proceedings of the 41st International Conference on High Energy physics - ICHEP2022, Bologna, Italy, 6-13 July, 2022
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Single-differential cross section predictions for top quark pair production are presented at next-to-leading order, using running top quark mass renormalization schemes. The evolution of the mass of the top quark is performed in the MSR scheme $m_{\mathrm{t}}^{\textrm{MSR}}(\mu)$ for renormalization scales $\mu$ belo...
[ { "created": "Thu, 24 Nov 2022 13:49:28 GMT", "version": "v1" } ]
2022-11-28
[ [ "Mäkelä", "Toni", "" ], [ "Hoang", "André", "" ], [ "Lipka", "Katerina", "" ], [ "Moch", "Sven-Olaf", "" ] ]
Single-differential cross section predictions for top quark pair production are presented at next-to-leading order, using running top quark mass renormalization schemes. The evolution of the mass of the top quark is performed in the MSR scheme $m_{\mathrm{t}}^{\textrm{MSR}}(\mu)$ for renormalization scales $\mu$ below ...
2310.12071
Clare Burrage
Clare Burrage, Peter Millington
Higgs-Induced Screening Mechanisms in Scalar-Tensor Theories
19 pages
Annals N.Y.Acad.Sci. 1531 (2024) 1, 95-103
10.1111/nyas.15092
null
hep-ph astro-ph.CO gr-qc
http://creativecommons.org/licenses/by/4.0/
We consider the theory of a light conformally coupled scalar field, i.e., one that is coupled directly to the Ricci scalar of the gravitational sector. This theory can be written equivalently as one of a light scalar that is coupled to the Standard Model of particle physics with a particular combination of Higgs-port...
[ { "created": "Wed, 18 Oct 2023 16:06:23 GMT", "version": "v1" } ]
2024-03-06
[ [ "Burrage", "Clare", "" ], [ "Millington", "Peter", "" ] ]
We consider the theory of a light conformally coupled scalar field, i.e., one that is coupled directly to the Ricci scalar of the gravitational sector. This theory can be written equivalently as one of a light scalar that is coupled to the Standard Model of particle physics with a particular combination of Higgs-portal...
1705.02027
Xun-Jie Xu
Werner Rodejohann and Xun-Jie Xu
Trimaximal $\mu$-$\tau$ reflection symmetry
12 pages, comments added, version to appear in PRD
Phys. Rev. D 96, 055039 (2017)
10.1103/PhysRevD.96.055039
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The $\mu$-$\tau$ reflection symmetry $(\nu_{e},\thinspace\nu_{\mu},\thinspace\nu_{\tau})\rightarrow(\overline{\nu}_{e},\thinspace\overline{\nu}_{\tau},\thinspace\overline{\nu}_{\mu})$ and the TM1 mixing (a PMNS matrix with the first column fixed to the TBM form) are both well compatible with experiments. If both appr...
[ { "created": "Thu, 4 May 2017 21:38:34 GMT", "version": "v1" }, { "created": "Sun, 27 Aug 2017 14:30:30 GMT", "version": "v2" }, { "created": "Sat, 16 Sep 2017 12:32:19 GMT", "version": "v3" } ]
2017-10-04
[ [ "Rodejohann", "Werner", "" ], [ "Xu", "Xun-Jie", "" ] ]
The $\mu$-$\tau$ reflection symmetry $(\nu_{e},\thinspace\nu_{\mu},\thinspace\nu_{\tau})\rightarrow(\overline{\nu}_{e},\thinspace\overline{\nu}_{\tau},\thinspace\overline{\nu}_{\mu})$ and the TM1 mixing (a PMNS matrix with the first column fixed to the TBM form) are both well compatible with experiments. If both approa...
hep-ph/0503190
Masayasu Harada
Masayasu Harada (Nagoya University)
Hidden LocaL Symmetry Theory as an Effective Field Theory of QCD
Talk given at International workshop on ``Dynamical Symmetry Breaking'' (December 21-22, 2004, Nagoya, Japan)
null
null
DPNU-05-04
hep-ph
null
In this write-up, I summarize the recent development of the hidden local symmetry (HLS) theory as an effective field theory of QCD. I first explain how the systematic chiral perturbation in the HLS is justified in the large Nc limit of QCD, and summarize the basic concept of the Wilsonian matching, through which some...
[ { "created": "Fri, 18 Mar 2005 19:58:32 GMT", "version": "v1" } ]
2007-05-23
[ [ "Harada", "Masayasu", "", "Nagoya University" ] ]
In this write-up, I summarize the recent development of the hidden local symmetry (HLS) theory as an effective field theory of QCD. I first explain how the systematic chiral perturbation in the HLS is justified in the large Nc limit of QCD, and summarize the basic concept of the Wilsonian matching, through which some o...
1202.1505
R. Sekhar Chivukula
R. Sekhar Chivukula, Pawin Ittisamai, Jing Ren, and Elizabeth H. Simmons
Technicolor in the LHC Era
15 pages, pdf figures embedded. Contribution to KMI Inauguration Conference "Quest for the Origin of Particles and the Universe" (KMIIN), 24-26 Nov. 2011, KMI, Nagoya University
null
null
MSUHEP-120207
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
LHC searches for the standard model Higgs Boson in \gamma\gamma\ or \tau\tau\ decay modes place strong constraints on the light technipion state predicted in technicolor models that include colored technifermions. Compared with the standard Higgs Boson, the technipions have an enhanced production rate (largely becaus...
[ { "created": "Tue, 7 Feb 2012 19:43:12 GMT", "version": "v1" } ]
2012-02-08
[ [ "Chivukula", "R. Sekhar", "" ], [ "Ittisamai", "Pawin", "" ], [ "Ren", "Jing", "" ], [ "Simmons", "Elizabeth H.", "" ] ]
LHC searches for the standard model Higgs Boson in \gamma\gamma\ or \tau\tau\ decay modes place strong constraints on the light technipion state predicted in technicolor models that include colored technifermions. Compared with the standard Higgs Boson, the technipions have an enhanced production rate (largely because ...
1812.02747
Tomas Gonzalo
Djuna Croon, Tom\'as E. Gonzalo, and Graham White
Gravitational Waves from a Pati-Salam Phase Transition
26 pages, 7 figures
JHEP 1902 (2019) 083
10.1007/JHEP02(2019)083
CoEPP-MN-18-11
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyse the gravitational wave and low energy signatures of a Pati-Salam phase transition. For a Pati-Salam scale of $M_{PS} \sim 10^5$ GeV, we find a stochastic power spectrum within reach of the next generation of ground-based interferometer experiments such as the Einstein Telescope, in parts of the parameter s...
[ { "created": "Thu, 6 Dec 2018 19:00:01 GMT", "version": "v1" }, { "created": "Wed, 20 Feb 2019 03:00:17 GMT", "version": "v2" } ]
2019-02-21
[ [ "Croon", "Djuna", "" ], [ "Gonzalo", "Tomás E.", "" ], [ "White", "Graham", "" ] ]
We analyse the gravitational wave and low energy signatures of a Pati-Salam phase transition. For a Pati-Salam scale of $M_{PS} \sim 10^5$ GeV, we find a stochastic power spectrum within reach of the next generation of ground-based interferometer experiments such as the Einstein Telescope, in parts of the parameter spa...
hep-ph/9811377
Nathan Isgur
Nathan Isgur
Duality-Violating 1/m_Q Effects in Heavy Quark Decay
16 pages, 5 figures, an abbreviated version of hep-ph/9809279, the original JLAB-THY-98-03 ``Duality in Inclusive Semileptonic Heavy Quark Decay"
Phys.Lett.B448:111-118,1999
10.1016/S0370-2693(98)01592-5
JLAB-THY-98-03*
hep-ph
null
I identify a source of \Lambda_{QCD}/m_Q corrections to the assumption of quark-hadron duality in the application of heavy quark methods to inclusive heavy quark decays. These corrections could substantially affect the accuracy of such methods in practical applications and in particular compromise their utility for t...
[ { "created": "Tue, 17 Nov 1998 22:52:31 GMT", "version": "v1" } ]
2014-11-17
[ [ "Isgur", "Nathan", "" ] ]
I identify a source of \Lambda_{QCD}/m_Q corrections to the assumption of quark-hadron duality in the application of heavy quark methods to inclusive heavy quark decays. These corrections could substantially affect the accuracy of such methods in practical applications and in particular compromise their utility for the...
hep-ph/9602221
null
Kenneth Lane (Boston University)
Symmetry Breaking and Generational Mixing in Topcolor--Assisted Technicolor
22 pages, uses harvmac.tex
Phys. Rev. D 54, 2204 (1996)
10.1103/PhysRevD.54.2204
BUHEP-96-2
hep-ph
null
Topcolor--assisted technicolor provides a dynamical explanation for electroweak and flavor symmetry breaking and for the large mass of the top quark without unnatural fine tuning. A major challenge is to generate the observed mixing between heavy and light generations while breaking the strong topcolor interactions n...
[ { "created": "Sun, 4 Feb 1996 18:57:42 GMT", "version": "v1" } ]
2016-08-24
[ [ "Lane", "Kenneth", "", "Boston University" ] ]
Topcolor--assisted technicolor provides a dynamical explanation for electroweak and flavor symmetry breaking and for the large mass of the top quark without unnatural fine tuning. A major challenge is to generate the observed mixing between heavy and light generations while breaking the strong topcolor interactions nea...
2103.09478
Konstantin Chetyrkin G.
V. M. Braun, K. G. Chetyrkin, B. A. Kniehl
Operator product expansion for the non-local gluon condensate
14 pages, a short discussion on the non-local gluon condensate in the context of nonrelativistic QCD (as well as pertinent citations) is added
null
10.1007/JHEP05(2021)231
Report-no: DESY 21-033, TTP21-005
hep-ph
http://creativecommons.org/licenses/by/4.0/
We consider the short-distance expansion of the product of two gluon field strength tensors connected by a straight-line-ordered Wilson line. The vacuum expectation value of this nonlocal operator is a common object in studies of the QCD vacuum structure, whereas its nucleon expectation value is known as the gluon qu...
[ { "created": "Wed, 17 Mar 2021 07:17:21 GMT", "version": "v1" }, { "created": "Thu, 13 May 2021 18:32:28 GMT", "version": "v2" } ]
2023-01-11
[ [ "Braun", "V. M.", "" ], [ "Chetyrkin", "K. G.", "" ], [ "Kniehl", "B. A.", "" ] ]
We consider the short-distance expansion of the product of two gluon field strength tensors connected by a straight-line-ordered Wilson line. The vacuum expectation value of this nonlocal operator is a common object in studies of the QCD vacuum structure, whereas its nucleon expectation value is known as the gluon quas...
0707.3954
Diego Guadagnoli
Michaela E. Albrecht, Wolfgang Altmannshofer, Andrzej J. Buras, Diego Guadagnoli, David M. Straub
Challenging SO(10) SUSY GUTs with family symmetries through FCNC processes
1 + 37 pages, 5 figures, 11 tables. v3: minor typos fixed. Matches JHEP published version
JHEP0710:055,2007
10.1088/1126-6708/2007/10/055
TUM-HEP-671/07
hep-ph
null
We perform a detailed analysis of the SO(10) SUSY GUT model with D3 family symmetry of Dermisek and Raby (DR). The model is specified in terms of 24 parameters and predicts, as a function of them, the whole MSSM set of parameters at low energy scales. Concerning the SM subset of such parameters, the model is able to ...
[ { "created": "Thu, 26 Jul 2007 15:41:40 GMT", "version": "v1" }, { "created": "Tue, 7 Aug 2007 16:34:59 GMT", "version": "v2" }, { "created": "Sun, 25 Nov 2007 13:24:20 GMT", "version": "v3" } ]
2008-11-26
[ [ "Albrecht", "Michaela E.", "" ], [ "Altmannshofer", "Wolfgang", "" ], [ "Buras", "Andrzej J.", "" ], [ "Guadagnoli", "Diego", "" ], [ "Straub", "David M.", "" ] ]
We perform a detailed analysis of the SO(10) SUSY GUT model with D3 family symmetry of Dermisek and Raby (DR). The model is specified in terms of 24 parameters and predicts, as a function of them, the whole MSSM set of parameters at low energy scales. Concerning the SM subset of such parameters, the model is able to gi...
1206.3824
Giampiero Passarino
Giampiero Passarino
Higgs Interference Effects in $\Pg \Pg \to \PZ\PZ$ and their Uncertainty
25 pages, 10 figures; improved numerical accuracy, Numerics updated, conclusions unchanged, references added. v2
null
10.1007/JHEP08(2012)146
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Interference between the Standard Model Higgs boson and continuum contributions is considered in the heavy-mass scenario. Results are available at leading order for the background. It is discussed how to combine the result with the next-to-next-to-leading order Higgs production cross-section and a proposal for estima...
[ { "created": "Mon, 18 Jun 2012 05:00:30 GMT", "version": "v1" }, { "created": "Mon, 2 Jul 2012 04:57:00 GMT", "version": "v2" } ]
2015-06-05
[ [ "Passarino", "Giampiero", "" ] ]
Interference between the Standard Model Higgs boson and continuum contributions is considered in the heavy-mass scenario. Results are available at leading order for the background. It is discussed how to combine the result with the next-to-next-to-leading order Higgs production cross-section and a proposal for estimati...
hep-ph/9709431
Ambar Ghosal
Ambar Ghosal, Anirban Kundu and Biswarup Mukhopadhyaya
Gauge-Mediated Supersymmetry Breaking Signals in an Electron-Photon Collider
LaTex, 12 pages including 4 figures
Phys.Rev. D57 (1998) 1972-1976
10.1103/PhysRevD.57.1972
MRI-PHY/P970923
hep-ph
null
We show the usefulness of an $e^-\gamma$ collider with backscattered laser photons in unveiling the signatures of Gauge-Mediated Supersymmetry Breaking models, with a right selectron as the next LSP. We also show how the signal can be distinguished from the Standard Model background as well as from signals of minimal...
[ { "created": "Tue, 23 Sep 1997 15:38:33 GMT", "version": "v1" } ]
2009-10-30
[ [ "Ghosal", "Ambar", "" ], [ "Kundu", "Anirban", "" ], [ "Mukhopadhyaya", "Biswarup", "" ] ]
We show the usefulness of an $e^-\gamma$ collider with backscattered laser photons in unveiling the signatures of Gauge-Mediated Supersymmetry Breaking models, with a right selectron as the next LSP. We also show how the signal can be distinguished from the Standard Model background as well as from signals of minimal s...
hep-ph/0208083
Robert Fleischer
Robert Fleischer (DESY Hamburg)
Status and Prospects of CKM Phase Determinations
22 pages, 6 figures. Invited talk given at the 8th International Conference on B Physics at Hadron Machines -- BEAUTY2002, Santiago de Compostela, Spain, 17-21 June 2002. To appear in the Proceedings
Nucl.Phys.Proc.Suppl.120:3-16,2003
10.1016/S0920-5632(03)01875-9
DESY 02-110
hep-ph
null
We give an overview of direct determinations of the angles of the unitarity triangle of the CKM matrix, using CP-violating effects in B-meson decays. After a discussion of B --> pi K modes, which can be described efficiently through allowed regions in observable space and play an important role to determine gamma, we...
[ { "created": "Thu, 8 Aug 2002 10:10:40 GMT", "version": "v1" } ]
2010-11-23
[ [ "Fleischer", "Robert", "", "DESY Hamburg" ] ]
We give an overview of direct determinations of the angles of the unitarity triangle of the CKM matrix, using CP-violating effects in B-meson decays. After a discussion of B --> pi K modes, which can be described efficiently through allowed regions in observable space and play an important role to determine gamma, we t...
hep-ph/0406011
Jan van Leusen
S. Barshay, L. M. Sehgal and J. van Leusen
CP Violation in the Decays B -> K Kbar in the Presence of D Dbar <-> K Kbar Mixing
9 pages, 6 figures
Phys.Lett. B596 (2004) 240-246
10.1016/j.physletb.2004.06.087
null
hep-ph
null
We have recently shown that the large direct CP violation observed in the decay B^0 -> pi^+ pi^-, and the enhanced branching ratio for B^0 -> pi^0 pi^0, can be understood by invoking a small mixing of the pi pi system with the dominant D Dbar channel. We examine here the analogous effect of D Dbar <-> K Kbar mixing o...
[ { "created": "Tue, 1 Jun 2004 14:26:17 GMT", "version": "v1" } ]
2009-11-10
[ [ "Barshay", "S.", "" ], [ "Sehgal", "L. M.", "" ], [ "van Leusen", "J.", "" ] ]
We have recently shown that the large direct CP violation observed in the decay B^0 -> pi^+ pi^-, and the enhanced branching ratio for B^0 -> pi^0 pi^0, can be understood by invoking a small mixing of the pi pi system with the dominant D Dbar channel. We examine here the analogous effect of D Dbar <-> K Kbar mixing on ...
hep-ph/9710203
Francois Gelis
Francois Gelis (ENSLAPP, Annecy)
Soft photons and hard thermal loops
13 pages, Latex2e, 11 postscript figures included with the package graphics. Talk given at the RHIC Summer Study '97, 6-16 July 1997, Brookhaven National Laboratory, USA
null
null
ENSLAPP-A-665
hep-ph
null
We calculate within the Hard Thermal Loop expansion the production rate of soft photons and lepton pairs by a hot quark-gluon plasma at thermal equilibrium, up to the 2-loop order. Strong collinear divergences appear to mix the orders of the perturbative expansion so that the 2-loop order is in fact dominant compared...
[ { "created": "Wed, 1 Oct 1997 10:04:30 GMT", "version": "v1" } ]
2007-05-23
[ [ "Gelis", "Francois", "", "ENSLAPP, Annecy" ] ]
We calculate within the Hard Thermal Loop expansion the production rate of soft photons and lepton pairs by a hot quark-gluon plasma at thermal equilibrium, up to the 2-loop order. Strong collinear divergences appear to mix the orders of the perturbative expansion so that the 2-loop order is in fact dominant compared t...
hep-ph/9504251
Teruya Yamanishi
T.Yamanishi, T.Morii and S.Tanaka
TWO--SPIN ASYMMETRY OF HEAVY QUARKONIA PRODUCTIONS AT RHIC ENERGY
LaTeX file, 8 pages+5 figures not included (available upon request), Talk delivered at 10th Lake Louise Winter Institute, Lake Louise (Canada), Feb. 19-25, 1995
null
null
KOBE-FHD-95-03
hep-ph
null
Hadroproductions of charmonium and bottomonium $\chi_J$ in polarized $pp$ collisions at RHIC energies are studied. Two--spin asymmetries $A_{LL}^{\chi_J}(pp)$ for these reactions are very good parameters for examining the polarized gluon distributions in a proton.
[ { "created": "Fri, 7 Apr 1995 01:25:41 GMT", "version": "v1" } ]
2009-09-25
[ [ "Yamanishi", "T.", "" ], [ "Morii", "T.", "" ], [ "Tanaka", "S.", "" ] ]
Hadroproductions of charmonium and bottomonium $\chi_J$ in polarized $pp$ collisions at RHIC energies are studied. Two--spin asymmetries $A_{LL}^{\chi_J}(pp)$ for these reactions are very good parameters for examining the polarized gluon distributions in a proton.
hep-ph/0307345
Shi-Lin Zhu
Shi-Lin Zhu
Understanding Pentaquark States in QCD
null
Phys.Rev.Lett. 91 (2003) 232002
10.1103/PhysRevLett.91.232002
null
hep-ph hep-ex nucl-ex nucl-th
null
We estimate the mass of the pentaquark state with QCD sum rules and find that pentaquark states with isospin $I=0, 1, 2$ lie close to each other around $(1.55\pm 0.15)$ GeV. The experimentally observed baryon resonance $\Theta^+ (1540)$ with $S=+1$ can be consistently identified as a pentaquark state if its $J^P={1\o...
[ { "created": "Tue, 29 Jul 2003 02:57:14 GMT", "version": "v1" }, { "created": "Sat, 25 Oct 2003 07:24:18 GMT", "version": "v2" } ]
2007-05-23
[ [ "Zhu", "Shi-Lin", "" ] ]
We estimate the mass of the pentaquark state with QCD sum rules and find that pentaquark states with isospin $I=0, 1, 2$ lie close to each other around $(1.55\pm 0.15)$ GeV. The experimentally observed baryon resonance $\Theta^+ (1540)$ with $S=+1$ can be consistently identified as a pentaquark state if its $J^P={1\ove...
hep-ph/9411392
Oscar J. P. Eboli
J.K. Mizukoshi (IFUSP), O.J.P. Eboli (CERN), and M.C. Gonzalez-Garcia (CERN)
Bounds on Scalar Leptoquarks from Z Physics
RevTeX 3.0, 26 pages, 4 postscript figures included as uufile
Nucl.Phys.B443:20-36,1995
10.1016/0550-3213(95)00162-L
IFUSP-P 1129, CERN-TH.7508/94
hep-ph
null
We analyse the constraints on scalar leptoquarks coming from radiative corrections to $Z$ physics. We perform a global fitting to the LEP data including the contributions of the most general effective Lagrangian for scalar leptoquarks, which exhibits the $SU(2)_L \times U(1)_Y$ gauge invariance. We show that the boun...
[ { "created": "Fri, 25 Nov 1994 10:02:56 GMT", "version": "v1" } ]
2008-11-26
[ [ "Mizukoshi", "J. K.", "", "IFUSP" ], [ "Eboli", "O. J. P.", "", "CERN" ], [ "Gonzalez-Garcia", "M. C.", "", "CERN" ] ]
We analyse the constraints on scalar leptoquarks coming from radiative corrections to $Z$ physics. We perform a global fitting to the LEP data including the contributions of the most general effective Lagrangian for scalar leptoquarks, which exhibits the $SU(2)_L \times U(1)_Y$ gauge invariance. We show that the bounds...
hep-ph/0505017
Athar Husain
H. Athar, C. S. Kim and Jake Lee
The intrinsic and oscillated astrophysical neutrino flavor ratios
23 pages, 5 figures, typos corrected, appeared in Mod. Phys. Lett. A
Mod.Phys.Lett. A21 (2006) 1049-1066
10.1142/S021773230602038X
null
hep-ph astro-ph hep-ex
null
The pp interactions taking place in the cosmos around us are a source of the astrophysical neutrinos of all the three flavors. In these interactions, the electron and the muon neutrinos mainly come from the production and the decay of the \pi^{\pm} mesons, whereas the tau neutrinos mainly come from the production and...
[ { "created": "Tue, 3 May 2005 10:49:01 GMT", "version": "v1" }, { "created": "Fri, 30 Jun 2006 14:35:03 GMT", "version": "v2" } ]
2009-11-11
[ [ "Athar", "H.", "" ], [ "Kim", "C. S.", "" ], [ "Lee", "Jake", "" ] ]
The pp interactions taking place in the cosmos around us are a source of the astrophysical neutrinos of all the three flavors. In these interactions, the electron and the muon neutrinos mainly come from the production and the decay of the \pi^{\pm} mesons, whereas the tau neutrinos mainly come from the production and t...
hep-ph/0511311
Alexander Studenikin
Alexander Studenikin
Quantum treatment of neutrino in background matter
10 pages, in: Proceedings of QFEXT'05 (The Seventh Workshop on Quantum Field Theory under the Influence of External Conditions, IEEC, CSIC and University of Barcelona, Barcelona, Catalonia, Spain, 5-9 September 2005.), ed. by Emilio Elizalde and Sergei Odintsov; published in Journal of Physics A
J.Phys. A39 (2006) 6769-6776
10.1088/0305-4470/39/21/S78
null
hep-ph
null
Motivated by the need of elaboration of the quantum theory of the spin light of neutrino in matter ($SL\nu$), we have studied in more detail the exact solutions of the Dirac equation for neutrinos moving in the background matter. These exact neutrino wavefunctions form a basis for a rather powerful method of investig...
[ { "created": "Mon, 28 Nov 2005 15:52:36 GMT", "version": "v1" }, { "created": "Wed, 8 Nov 2006 16:30:10 GMT", "version": "v2" } ]
2009-11-11
[ [ "Studenikin", "Alexander", "" ] ]
Motivated by the need of elaboration of the quantum theory of the spin light of neutrino in matter ($SL\nu$), we have studied in more detail the exact solutions of the Dirac equation for neutrinos moving in the background matter. These exact neutrino wavefunctions form a basis for a rather powerful method of investigat...
1711.02518
HongWei Ke
Hong-Wei Ke, Ning Hao and Xue-Qian Li
$\Sigma_{b}\to\Sigma_c^*$ weak decays in the light-front quark model with two schemes to deal with the polarization of diquark
25 pages, 8 figures and 6 tables, Accepted by JPG
J.Phys. G46 (2019) no.11, 115003
10.1088/1361-6471/ab29a7
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Thanks to the remarkable achievements of LHC, a large database on baryons has been accumulated, so it is believed that the time for precisely studying baryons especially heavy baryons, has come. By analyzing the data, the quark-diquark structure which has been under intensive discussions, can be tested. In this work ...
[ { "created": "Sat, 4 Nov 2017 15:06:27 GMT", "version": "v1" }, { "created": "Wed, 15 Nov 2017 12:13:10 GMT", "version": "v2" }, { "created": "Sun, 15 Jul 2018 14:16:18 GMT", "version": "v3" }, { "created": "Sat, 15 Jun 2019 06:42:31 GMT", "version": "v4" }, { "cr...
2020-03-17
[ [ "Ke", "Hong-Wei", "" ], [ "Hao", "Ning", "" ], [ "Li", "Xue-Qian", "" ] ]
Thanks to the remarkable achievements of LHC, a large database on baryons has been accumulated, so it is believed that the time for precisely studying baryons especially heavy baryons, has come. By analyzing the data, the quark-diquark structure which has been under intensive discussions, can be tested. In this work th...
1207.5317
Jochum van der Bij
J. J. van der Bij
A simple SU(5) model with unification near the Planck scale
6 pages
null
10.1209/0295-5075/100/29003
FR-PHENO-2012-19
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study unification in the SU(5) model with an extra Dirac multiplet in the ${\bf 24}$ representation. After spontaneous symmetry breaking we have at low energies a singlet, a colorless triplet and a neutral color-octet. All other particles can be taken at the unification scale. This combination leads to a unificati...
[ { "created": "Mon, 23 Jul 2012 08:33:31 GMT", "version": "v1" } ]
2015-06-05
[ [ "van der Bij", "J. J.", "" ] ]
We study unification in the SU(5) model with an extra Dirac multiplet in the ${\bf 24}$ representation. After spontaneous symmetry breaking we have at low energies a singlet, a colorless triplet and a neutral color-octet. All other particles can be taken at the unification scale. This combination leads to a unification...
hep-ph/0312047
Helio Portella Manoel
Helio Manoel Portella, Luiz Carlos Santos de Oliveira and Carlos Eduardo Campos Lima
Estimative of Inelasticity Coefficient from Emulsion Chamber Data
8 pages in Latex, 3 .ps figures
Int.J.Mod.Phys. A19 (2004) 3583-3594
null
null
hep-ph
null
Atmospheric diffusion of high energy cosmic rays is studied analytically and the obtained integral electromagnetic fluxes are compared with the data measured by emulsion chamber detectors at mountain altitudes. We find a good consistency between them when the average nucleon inelasticity coefficient is varying betwee...
[ { "created": "Wed, 3 Dec 2003 11:30:23 GMT", "version": "v1" } ]
2007-05-23
[ [ "Portella", "Helio Manoel", "" ], [ "de Oliveira", "Luiz Carlos Santos", "" ], [ "Lima", "Carlos Eduardo Campos", "" ] ]
Atmospheric diffusion of high energy cosmic rays is studied analytically and the obtained integral electromagnetic fluxes are compared with the data measured by emulsion chamber detectors at mountain altitudes. We find a good consistency between them when the average nucleon inelasticity coefficient is varying between ...
hep-ph/0107147
M. J. Herrero
Antonio Dobado, Maria J. Herrero, David Temes
Effective Higgs-quark-quark couplings from a heavy SUSY spectrum
21 pages, 1 ps figure. Version to appear in Phys. Rev, D
Phys.Rev. D65 (2002) 075023
10.1103/PhysRevD.65.075023
null
hep-ph hep-th
null
In this paper we study the Yukawa Higgs-quark-quark interactions that are generated from radiative corrections of squarks and gluinos, in the Minimal Supersymmetric Standard Model. We compute the corrections to the effective action for Higgs and quark fields that are produced by explicit integration, in the path inte...
[ { "created": "Fri, 13 Jul 2001 12:28:09 GMT", "version": "v1" }, { "created": "Thu, 19 Jul 2001 17:34:23 GMT", "version": "v2" }, { "created": "Fri, 8 Mar 2002 14:51:35 GMT", "version": "v3" } ]
2009-11-07
[ [ "Dobado", "Antonio", "" ], [ "Herrero", "Maria J.", "" ], [ "Temes", "David", "" ] ]
In this paper we study the Yukawa Higgs-quark-quark interactions that are generated from radiative corrections of squarks and gluinos, in the Minimal Supersymmetric Standard Model. We compute the corrections to the effective action for Higgs and quark fields that are produced by explicit integration, in the path integr...
0810.4853
Won Sang Cho
Won Sang Cho, Kiwoon Choi, Yeong Gyun Kim, Chan Beom Park
M_T2-assisted on-shell reconstruction of missing momenta and its application to spin measurement at the LHC
11 pages, 10 figures, typos are corrected, figures are replaced
Phys.Rev.D79:031701,2009
10.1103/PhysRevD.79.031701
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a scheme to assign a 4-momentum to each WIMP in new physics event producing a pair of mother particles each of which decays to an invisible weakly interacting massive particle (WIMP) plus some visible particle(s). The transverse components are given by the value that determines the event variable M_T2, whi...
[ { "created": "Mon, 27 Oct 2008 16:05:06 GMT", "version": "v1" }, { "created": "Thu, 30 Oct 2008 15:34:16 GMT", "version": "v2" }, { "created": "Tue, 20 Jan 2009 06:18:34 GMT", "version": "v3" } ]
2009-11-13
[ [ "Cho", "Won Sang", "" ], [ "Choi", "Kiwoon", "" ], [ "Kim", "Yeong Gyun", "" ], [ "Park", "Chan Beom", "" ] ]
We propose a scheme to assign a 4-momentum to each WIMP in new physics event producing a pair of mother particles each of which decays to an invisible weakly interacting massive particle (WIMP) plus some visible particle(s). The transverse components are given by the value that determines the event variable M_T2, while...
hep-ph/9702378
Stephen Adler
Stephen L. Adler
SU(4) Preonic Interpretation of the HERA Positron-Jet Events
plaintex, 7 Pages
null
null
IASSNS-HEP 97-12
hep-ph hep-th
null
We show that our recent SU(4) generalized ``rishon'' composite model for quarks and leptons, augmented either by the hypothesis of breaking of color SU(3) to ``glow'' SO(3), or by the hypothesis of incomplete color neutralization in very hard processes, leads to an interpretation of the HERA positron-jet events as th...
[ { "created": "Thu, 20 Feb 1997 20:06:00 GMT", "version": "v1" } ]
2007-05-23
[ [ "Adler", "Stephen L.", "" ] ]
We show that our recent SU(4) generalized ``rishon'' composite model for quarks and leptons, augmented either by the hypothesis of breaking of color SU(3) to ``glow'' SO(3), or by the hypothesis of incomplete color neutralization in very hard processes, leads to an interpretation of the HERA positron-jet events as the ...
1711.10828
Fabian Krinner
Fabian Krinner (for the COMPASS collaboration)
First results from an extended freed-isobar analysis at COMPASS
Proceedings for the HADRON 2017 Conference from 25 September 2017 to 29 September 2017 5 pages, 5 figures
PoS Hadron2017 (2018) 034
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
One of the goals of the COMPASS experiment is the precision study of light-meson spectroscopy with data for various final states. With $46\times10^6$ exclusive events, the process $\pi^- p\to\pi^-\pi^+\pi^- p$ constitutes the flagship channel. Based on this data set, the results of an extensive partial-wave analysis ...
[ { "created": "Wed, 29 Nov 2017 13:05:06 GMT", "version": "v1" } ]
2018-08-29
[ [ "Krinner", "Fabian", "", "for the COMPASS collaboration" ] ]
One of the goals of the COMPASS experiment is the precision study of light-meson spectroscopy with data for various final states. With $46\times10^6$ exclusive events, the process $\pi^- p\to\pi^-\pi^+\pi^- p$ constitutes the flagship channel. Based on this data set, the results of an extensive partial-wave analysis (P...
2310.05724
Jakob Schoenleber
Yao Ji and Jakob Schoenleber
Two-loop coefficient functions in deeply virtual Compton scattering: flavor-singlet axial-vector and transversity case
22 pages, 6 figures, 1 ancillary file "axial_and_transversity_CF.m''
null
null
TUM-HEP-1474/23
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the two-loop flavor-singlet axial-vector and gluon transversity coefficient functions for deeply virtual Compton scattering in QCD. We observe interesting properties regarding the transcendentality of the transversity coefficient function. Our results complete the calculation of the full next-to-next-to-...
[ { "created": "Mon, 9 Oct 2023 13:49:06 GMT", "version": "v1" }, { "created": "Mon, 5 Feb 2024 15:06:38 GMT", "version": "v2" } ]
2024-02-06
[ [ "Ji", "Yao", "" ], [ "Schoenleber", "Jakob", "" ] ]
We calculate the two-loop flavor-singlet axial-vector and gluon transversity coefficient functions for deeply virtual Compton scattering in QCD. We observe interesting properties regarding the transcendentality of the transversity coefficient function. Our results complete the calculation of the full next-to-next-to-le...
hep-ph/9711360
Andrei Linde
Juan Garcia-Bellido and Andrei Linde
Preheating in Hybrid Inflation
15 pages, 11 figures, new results illustrating a possibility of an efficient preheating are added
Phys.Rev.D57:6075-6088,1998
10.1103/PhysRevD.57.6075
CERN-TH/97-329, SU-ITP-97-49
hep-ph astro-ph hep-th
null
We investigate the possibility of preheating in hybrid inflation. This scenario involves at least two scalar fields, the inflaton field $\phi$, and the symmetry breaking field $\sigma$. We found that the behavior of these fields after inflation, as well as the possibility of preheating (particle production due to par...
[ { "created": "Tue, 18 Nov 1997 07:19:14 GMT", "version": "v1" }, { "created": "Sun, 21 Dec 1997 01:52:35 GMT", "version": "v2" } ]
2009-09-29
[ [ "Garcia-Bellido", "Juan", "" ], [ "Linde", "Andrei", "" ] ]
We investigate the possibility of preheating in hybrid inflation. This scenario involves at least two scalar fields, the inflaton field $\phi$, and the symmetry breaking field $\sigma$. We found that the behavior of these fields after inflation, as well as the possibility of preheating (particle production due to param...
1002.2626
Olga Guadalupe F\'elix Beltr\'an Olga
J. E. Barradas-Guevara, F. C\'azarez-Bush, A. Cordero-Cid, O. F\'elix-Beltr\'an, J. Hern\'andez-S\'anchez, R. Noriega-Papaqui
Implications of Yukawa Textures in the decay $H^+ \to W^+ \gamma$ within the 2HDM-III
20 pages, 4 figures
J.Phys.G37:115008,2010
10.1088/0954-3899/37/11/115008
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the implications of assuming a four-zero Yukawa texture for the charged Higgs decay $H^+ \to W^+ \gamma$ at one-loop level, within the context of the general 2-Higgs Doublet Model of Type III. We begin by presenting a detailed analysis of the charged Higgs boson couplings with heavy quarks and the resultin...
[ { "created": "Fri, 12 Feb 2010 19:32:29 GMT", "version": "v1" }, { "created": "Fri, 26 Feb 2010 02:02:34 GMT", "version": "v2" } ]
2011-01-27
[ [ "Barradas-Guevara", "J. E.", "" ], [ "Cázarez-Bush", "F.", "" ], [ "Cordero-Cid", "A.", "" ], [ "Félix-Beltrán", "O.", "" ], [ "Hernández-Sánchez", "J.", "" ], [ "Noriega-Papaqui", "R.", "" ] ]
We discuss the implications of assuming a four-zero Yukawa texture for the charged Higgs decay $H^+ \to W^+ \gamma$ at one-loop level, within the context of the general 2-Higgs Doublet Model of Type III. We begin by presenting a detailed analysis of the charged Higgs boson couplings with heavy quarks and the resulting ...
2207.04956
Siavash Neshatpour
S. Neshatpour, F. Mahmoudi
Flavour Physics Phenomenology with SuperIso
9 pages, 3 figures. Contribution to the proceedings of "Computational Tools for High Energy Physics and Cosmology (CompTools2021)", Lyon, France
PoS(CompTools2021)010
null
CERN-TH-2022-119
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present an overview of SuperIso v4.1 which is a public program for the calculation of flavour physics observables. We give examples of using SuperIso to constrain new physics scenarios with kaon physics and present the implications of rare B-decays.
[ { "created": "Mon, 11 Jul 2022 15:37:52 GMT", "version": "v1" } ]
2022-07-15
[ [ "Neshatpour", "S.", "" ], [ "Mahmoudi", "F.", "" ] ]
We present an overview of SuperIso v4.1 which is a public program for the calculation of flavour physics observables. We give examples of using SuperIso to constrain new physics scenarios with kaon physics and present the implications of rare B-decays.
hep-ph/0405030
Mikhail Kostin
M. A. Kostin and N. V. Mokhov
Parallelizing the MARS15 Code with MPI for Shielding Applications
5 pages, 5 figures. Presented paper at the 10th International Conference on Radiation Shielding, Funchal (Madeira), Portugal, May 9-14, 2004. This work was supported by the Universities Research Association, Inc., under contract DE-AC02-76CH03000 with the U.S. Department of Energy
Radiat.Prot.Dosim.116:297-300
null
FERMILAB-Conf-04/054-AD
hep-ph
null
The MARS15 Monte Carlo code capabilities to deal with time-consuming deep penetration shielding problems and other computationally tough tasks in accelerator, detector and shielding applications, have been enhanced by a parallel processing option. It has been developed, implemented and tested on the Fermilab Accelera...
[ { "created": "Tue, 4 May 2004 16:44:34 GMT", "version": "v1" } ]
2008-11-26
[ [ "Kostin", "M. A.", "" ], [ "Mokhov", "N. V.", "" ] ]
The MARS15 Monte Carlo code capabilities to deal with time-consuming deep penetration shielding problems and other computationally tough tasks in accelerator, detector and shielding applications, have been enhanced by a parallel processing option. It has been developed, implemented and tested on the Fermilab Accelerato...
1712.03615
Hua-Xing Chen
Er-Liang Cui, Hua-Xing Chen, Wei Chen, Xiang Liu and Shi-Lin Zhu
A suggested search for doubly charmed baryons of $J^P=3/2^+$ via their electromagnetic transitions
9 pages, 1 figure, 2 tables, accepted by PRD
Phys. Rev. D 97, 034018 (2018)
10.1103/PhysRevD.97.034018
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We use the method of light-cone sum rules to study the electromagnetic transition of the $\Xi^{*++}_{cc}$ into $\Xi^{++}_{cc}\gamma$, whose decay width is estimated to be $13.7~{^{+17.7}_{-~7.9}}$ keV. This value is large enough for the $\Xi^{*++}_{cc}$ to be observed in the $\Xi^{++}_{cc}\gamma$ channel, and we prop...
[ { "created": "Mon, 11 Dec 2017 00:35:14 GMT", "version": "v1" }, { "created": "Wed, 31 Jan 2018 23:21:13 GMT", "version": "v2" } ]
2018-02-20
[ [ "Cui", "Er-Liang", "" ], [ "Chen", "Hua-Xing", "" ], [ "Chen", "Wei", "" ], [ "Liu", "Xiang", "" ], [ "Zhu", "Shi-Lin", "" ] ]
We use the method of light-cone sum rules to study the electromagnetic transition of the $\Xi^{*++}_{cc}$ into $\Xi^{++}_{cc}\gamma$, whose decay width is estimated to be $13.7~{^{+17.7}_{-~7.9}}$ keV. This value is large enough for the $\Xi^{*++}_{cc}$ to be observed in the $\Xi^{++}_{cc}\gamma$ channel, and we propos...
1309.6599
Josef Pradler
Haipeng An, Maxim Pospelov, Josef Pradler
New Light on Dark Photons
4 pages, 2 figures; Proceedings of the 9th Patras Workshop on Axions, WIMPs and WISPs, Mainz, June 24-28, 2013
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
"Dark Photons", light new vector particles V kinetically mixed with the photon, are a frequently considered extension of the Standard Model. For masses below 10 keV they are emitted from the solar interior. In the limit of small mass m_V the dark photon flux is strongly peaked at low energies and we demonstrate that ...
[ { "created": "Wed, 25 Sep 2013 18:18:58 GMT", "version": "v1" } ]
2013-09-26
[ [ "An", "Haipeng", "" ], [ "Pospelov", "Maxim", "" ], [ "Pradler", "Josef", "" ] ]
"Dark Photons", light new vector particles V kinetically mixed with the photon, are a frequently considered extension of the Standard Model. For masses below 10 keV they are emitted from the solar interior. In the limit of small mass m_V the dark photon flux is strongly peaked at low energies and we demonstrate that th...
1610.08900
Diganta Das
B. Ananthanarayan, Diganta Das
Optimal renormalization and the extraction of the strange quark mass from moments of the $\tau$-decay spectral function
12 pages, 4 tables, 7 figures, v2 corresponds to version to appear in Physical Review D
Phys. Rev. D 94, 116014 (2016)
10.1103/PhysRevD.94.116014
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We introduce an optimal renormalization group analysis pertinent to the analysis of polarization functions associated with the $s$-quark mass relevant in $\tau$-decay. The technique is based on the renormalization group invariance constraints which lead to closed form summation of all the leading and next-to-leading ...
[ { "created": "Thu, 27 Oct 2016 17:47:13 GMT", "version": "v1" }, { "created": "Thu, 29 Dec 2016 06:54:35 GMT", "version": "v2" } ]
2016-12-30
[ [ "Ananthanarayan", "B.", "" ], [ "Das", "Diganta", "" ] ]
We introduce an optimal renormalization group analysis pertinent to the analysis of polarization functions associated with the $s$-quark mass relevant in $\tau$-decay. The technique is based on the renormalization group invariance constraints which lead to closed form summation of all the leading and next-to-leading lo...
2308.09686
Cem Murat Ayber
Cem Murat Ayber and Seyda Ipek
A Hybrid Type I + III Inverse Seesaw Mechanism in $U(1)_{R-L}$-symmetric MSSM
v2: 20 pages, 7 figures, plots updated, added clarifying comments, matches published version in JHEP
High Energ. Phys. 2023, 85 (2023)
10.1007/JHEP11(2023)085
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We show that, in a $U(1)_{R-L}$-symmetric supersymmetric model, the pseudo-Dirac bino and wino can give rise to three light neutrino masses through effective operators, generated at the messenger scale between a SUSY breaking hidden sector and the visible sector. The neutrino-bino/wino mixing follows a hybrid type I+...
[ { "created": "Fri, 18 Aug 2023 17:17:08 GMT", "version": "v1" }, { "created": "Fri, 17 Nov 2023 18:27:50 GMT", "version": "v2" } ]
2023-11-20
[ [ "Ayber", "Cem Murat", "" ], [ "Ipek", "Seyda", "" ] ]
We show that, in a $U(1)_{R-L}$-symmetric supersymmetric model, the pseudo-Dirac bino and wino can give rise to three light neutrino masses through effective operators, generated at the messenger scale between a SUSY breaking hidden sector and the visible sector. The neutrino-bino/wino mixing follows a hybrid type I+II...
hep-ph/9408291
null
B.L. Ioffe
The Nucleon Spin Problem
31 pages, 5 figures available upon request, ITEP-61(1994)
Surveys High Energ.Phys.8:107-134,1995
10.1080/01422419508201820
null
hep-ph
null
C o n t e n t s 1. Introduction. 2. General Relations. 3. Small $x$ Domain -- Regge Behaviour. 4. The Parton Model. 5. Sum Rules in the Parton Model. 6. QCD Corrections to Sum Rules. 7. Nucleon Axial Coupling Constants. 8. The Experimental Data on $g_1(x)$ and Their Interpretation. 9. Suggestions for Future Experimen...
[ { "created": "Mon, 15 Aug 1994 09:54:13 GMT", "version": "v1" } ]
2015-06-25
[ [ "Ioffe", "B. L.", "" ] ]
C o n t e n t s 1. Introduction. 2. General Relations. 3. Small $x$ Domain -- Regge Behaviour. 4. The Parton Model. 5. Sum Rules in the Parton Model. 6. QCD Corrections to Sum Rules. 7. Nucleon Axial Coupling Constants. 8. The Experimental Data on $g_1(x)$ and Their Interpretation. 9. Suggestions for Future Experiments...
hep-ph/0104315
Zoltan Nagy
Zoltan Nagy and Zoltan Trocsanyi
Multi-jet cross sections in deep inelastic scattering at next-to-leading order
5 pages, 3 figures
Phys.Rev.Lett.87:082001,2001
10.1103/PhysRevLett.87.082001
IPPP/01/18, DCPT/01/36
hep-ph
null
We present the perturbative prediction for three-jet production cross section in DIS at the NLO accuracy. We study the dependence on the renormalization and factorization scales of exclusive three-jet cross section. The perturbative prediction for the three-jet differential distribution as a function of the momentum ...
[ { "created": "Mon, 30 Apr 2001 20:32:27 GMT", "version": "v1" }, { "created": "Mon, 2 Jul 2001 14:11:42 GMT", "version": "v2" } ]
2011-07-19
[ [ "Nagy", "Zoltan", "" ], [ "Trocsanyi", "Zoltan", "" ] ]
We present the perturbative prediction for three-jet production cross section in DIS at the NLO accuracy. We study the dependence on the renormalization and factorization scales of exclusive three-jet cross section. The perturbative prediction for the three-jet differential distribution as a function of the momentum tr...
hep-ph/9910397
Stefano Forte
Stefano Forte
Tests of the Standard Model at HERA
4 pages, no figures, latex with hep99 class files. Invited talk at EPS-HEP99 (Tampere, Finland, July 1999). References corrected
null
null
RM3-TH/99-12
hep-ph
null
We review how experimental data collected at the HERA lepton-hadron collider have improved our theoretical and phenomenological understanding of the standard model, and specifically of its QCD sector.
[ { "created": "Tue, 19 Oct 1999 09:08:44 GMT", "version": "v1" }, { "created": "Thu, 21 Oct 1999 16:11:55 GMT", "version": "v2" } ]
2007-05-23
[ [ "Forte", "Stefano", "" ] ]
We review how experimental data collected at the HERA lepton-hadron collider have improved our theoretical and phenomenological understanding of the standard model, and specifically of its QCD sector.
hep-ph/0302046
Malgorzata Worek
K. Desch, Z. Was and M. Worek
Measuring the Higgs boson parity at a Linear Collider using the tau impact parameter and tau --> rho nu decay
12 pages, 12 figures, LaTeX
Eur.Phys.J.C29:491-496,2003
10.1140/epjc/s2003-01231-4
LC-PHSM-2003-003, CERN-TH/2003-009, TTP03-01
hep-ph
null
We demonstrate that a measurement of the impact parameter in one-prong tau decay can be useful for the determination of the Higgs boson parity in the H/A --> tau tau; tau --> rho nu decay chain. We have estimated that for a detection set-up such as TESLA, use of the information from the tau impact parameter can impro...
[ { "created": "Thu, 6 Feb 2003 17:33:36 GMT", "version": "v1" } ]
2011-09-13
[ [ "Desch", "K.", "" ], [ "Was", "Z.", "" ], [ "Worek", "M.", "" ] ]
We demonstrate that a measurement of the impact parameter in one-prong tau decay can be useful for the determination of the Higgs boson parity in the H/A --> tau tau; tau --> rho nu decay chain. We have estimated that for a detection set-up such as TESLA, use of the information from the tau impact parameter can improve...
1009.4363
Francois Gelis
K. Dusling, T. Epelbaum, F. Gelis, R. Venugopalan
Role of quantum fluctuations in a system with strong fields: Onset of hydrodynamical flow
45 pages, 17 figures
Nucl.Phys.A850:69-109,2011
10.1016/j.nuclphysa.2010.11.009
null
hep-ph hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Quantum fluctuations are believed to play an important role in the thermalization of classical fields in inflationary cosmology but their relevance for isotropization/thermalization of the classical fields produced in heavy ion collisions is not completely understood. We consider a scalar $\phi^4$ toy model coupled t...
[ { "created": "Wed, 22 Sep 2010 13:51:54 GMT", "version": "v1" } ]
2011-01-17
[ [ "Dusling", "K.", "" ], [ "Epelbaum", "T.", "" ], [ "Gelis", "F.", "" ], [ "Venugopalan", "R.", "" ] ]
Quantum fluctuations are believed to play an important role in the thermalization of classical fields in inflationary cosmology but their relevance for isotropization/thermalization of the classical fields produced in heavy ion collisions is not completely understood. We consider a scalar $\phi^4$ toy model coupled to ...
1101.2195
Alessandro Strumia
Alessandro Strumia
The fine-tuning price of the early LHC
7 pages. v3: updated with new bounds from ATLAS and CMS at 1.1/fb presented at the EPS-HEP-2011 conference
JHEP 1104:073,2011
10.1007/JHEP04(2011)073
IFUP-TH/2011-1
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
LHC already probed and excluded half of the parameter space of the Constrained Minimal Supersymmetric Standard Model allowed by previous experiments. Only about 0.3% of the CMSSM parameter space survives. This fraction rises to about 0.9% if the bound on the Higgs mass can be circumvented.
[ { "created": "Tue, 11 Jan 2011 20:33:40 GMT", "version": "v1" }, { "created": "Sun, 20 Feb 2011 16:05:05 GMT", "version": "v2" }, { "created": "Tue, 26 Jul 2011 07:47:24 GMT", "version": "v3" } ]
2015-03-17
[ [ "Strumia", "Alessandro", "" ] ]
LHC already probed and excluded half of the parameter space of the Constrained Minimal Supersymmetric Standard Model allowed by previous experiments. Only about 0.3% of the CMSSM parameter space survives. This fraction rises to about 0.9% if the bound on the Higgs mass can be circumvented.
2108.06222
Jiaxing Zhao
Tao Guo, Jianing Li, Jiaxing Zhao, and Lianyi He
Mass spectra and decays of open-heavy tetraquark states
14 pages, 2 figures
null
10.1103/PhysRevD.105.054018
null
hep-ph nucl-th
http://creativecommons.org/publicdomain/zero/1.0/
Open-heavy tetraquark states, especially those contain four different quarks have drawn much attention in both theoretical and experimental fields. In the framework of the improved chromomagnetic interaction (ICMI) model, we complete a systematic study on the mass spectra and possible strong decay channels of the $S$...
[ { "created": "Fri, 13 Aug 2021 13:05:08 GMT", "version": "v1" } ]
2022-04-06
[ [ "Guo", "Tao", "" ], [ "Li", "Jianing", "" ], [ "Zhao", "Jiaxing", "" ], [ "He", "Lianyi", "" ] ]
Open-heavy tetraquark states, especially those contain four different quarks have drawn much attention in both theoretical and experimental fields. In the framework of the improved chromomagnetic interaction (ICMI) model, we complete a systematic study on the mass spectra and possible strong decay channels of the $S$-w...
hep-ph/9307281
null
G. Azuelos and A. Djouadi
Signals of New Leptons
standard latex, 4 pages + 1 Postscript figure appended after \end{document}, Prep. UdeM-LPN-TH-93-159
null
null
null
hep-ph
null
We discuss the production of heavy leptons at a future high--energy $e^+e^-$ linear collider with a center of mass energy of 500 GeV. Signals and backgrounds are analyzed for their single production in association with ordinary leptons. [Talk given by A.D. at the second Workshop on "Physics and Experiments with Linea...
[ { "created": "Thu, 15 Jul 1993 23:07:23 GMT", "version": "v1" } ]
2007-05-23
[ [ "Azuelos", "G.", "" ], [ "Djouadi", "A.", "" ] ]
We discuss the production of heavy leptons at a future high--energy $e^+e^-$ linear collider with a center of mass energy of 500 GeV. Signals and backgrounds are analyzed for their single production in association with ordinary leptons. [Talk given by A.D. at the second Workshop on "Physics and Experiments with Linear ...
hep-ph/9710451
Tilman Plehn
W. Beenakker, M. Kr\"amer, T. Plehn, M. Spira, P.M. Zerwas
Stop Production at Hadron Colliders
15 pages, LaTeX
Nucl.Phys. B515 (1998) 3-14
10.1016/S0550-3213(98)00014-5
DESY 97-43, CERN-TH/97-177, RAL-TR-97-056
hep-ph
null
Stop particles are expected to be the lightest squarks in supersymmetric theories and the search for these particles is an important experimental task. We therefore present the cross sections for the production processes $p\bar{p}/pp \to \ste\steb$ and $\stz\stzb$ at Tevatron and LHC energies in next-to-leading order...
[ { "created": "Thu, 23 Oct 1997 16:52:19 GMT", "version": "v1" } ]
2009-10-30
[ [ "Beenakker", "W.", "" ], [ "Krämer", "M.", "" ], [ "Plehn", "T.", "" ], [ "Spira", "M.", "" ], [ "Zerwas", "P. M.", "" ] ]
Stop particles are expected to be the lightest squarks in supersymmetric theories and the search for these particles is an important experimental task. We therefore present the cross sections for the production processes $p\bar{p}/pp \to \ste\steb$ and $\stz\stzb$ at Tevatron and LHC energies in next-to-leading order s...
2212.09065
Andras Patkos
Andras Patkos
Electromagnetic energy loss of axion stars
6 pages; extended version to appear in Physical Review D
null
10.1103/PhysRevD.107.055017
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The rate of energy exchange of spatially localized and gravitationally bound axion configurations with electromagnetic radiation is investigated in presence of strong static magnetic field. Fully analytic treatment is achieved based on variationally optimized separable spatio-temporal clump profiles. For dilute axion...
[ { "created": "Sun, 18 Dec 2022 11:19:22 GMT", "version": "v1" }, { "created": "Sun, 26 Feb 2023 09:01:50 GMT", "version": "v2" } ]
2023-03-29
[ [ "Patkos", "Andras", "" ] ]
The rate of energy exchange of spatially localized and gravitationally bound axion configurations with electromagnetic radiation is investigated in presence of strong static magnetic field. Fully analytic treatment is achieved based on variationally optimized separable spatio-temporal clump profiles. For dilute axion s...
0807.2215
Bernd Kniehl
Bernd A. Kniehl
Inclusive production of heavy-flavored hadrons at NLO in the GM-VFNS
4 pages, 8 figures, to appear in the Proceedings of the XVI International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS 2008), 7-11 April 2008, University College London
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We summarize recent progress in the theoretical description of heavy-flavored-hadron inclusive production at next-to-leading order in the general-mass variable-flavor-number scheme. Specifically, we discuss the influence of finite-mass effects on the determination D-meson fragmentation functions from a global fit to ...
[ { "created": "Mon, 14 Jul 2008 17:41:21 GMT", "version": "v1" } ]
2008-07-15
[ [ "Kniehl", "Bernd A.", "" ] ]
We summarize recent progress in the theoretical description of heavy-flavored-hadron inclusive production at next-to-leading order in the general-mass variable-flavor-number scheme. Specifically, we discuss the influence of finite-mass effects on the determination D-meson fragmentation functions from a global fit to e^...
hep-ph/0506188
Alan Cornell
T. M. Aliev, S. Rai Choudhury, A. S. Cornell and Naveen Gaur
CP violation in the $B \to K \ell^+ \ell^-$ decay
16 pages, 6 figures
Eur.Phys.J.C49:657-664,2007
10.1140/epjc/s10052-006-0141-2
null
hep-ph
null
Standard Model (SM) CP asymmetries in $B \to K \ell^+ \ell^-$ are expected to be very small. This feature could help in the understanding of new physics scenarios which predict the existence of CP odd phases in various Wilson coefficients. In this paper we have analyzed the $B \to K \ell^+ \ell^-$ decay in beyond the...
[ { "created": "Sat, 18 Jun 2005 14:59:36 GMT", "version": "v1" } ]
2011-09-13
[ [ "Aliev", "T. M.", "" ], [ "Choudhury", "S. Rai", "" ], [ "Cornell", "A. S.", "" ], [ "Gaur", "Naveen", "" ] ]
Standard Model (SM) CP asymmetries in $B \to K \ell^+ \ell^-$ are expected to be very small. This feature could help in the understanding of new physics scenarios which predict the existence of CP odd phases in various Wilson coefficients. In this paper we have analyzed the $B \to K \ell^+ \ell^-$ decay in beyond the S...
1209.0030
Alvaro Calle Cordon
A. Calle Cordon and J. L. Goity
Baryon masses and axial charges in 1/Nc - ChPT
proceedings of parallel talk at QNP 2012
null
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
An analysis is presented of the ground state baryon's (N and \Delta) masses and axial couplings in the combined 1/Nc and chiral expansions. Renormalization and alternative power counting schemes are discussed to one loop (NNLO). An application is made to lattice QCD results for non-strange baryon masses and the nucle...
[ { "created": "Fri, 31 Aug 2012 23:14:49 GMT", "version": "v1" } ]
2012-09-04
[ [ "Cordon", "A. Calle", "" ], [ "Goity", "J. L.", "" ] ]
An analysis is presented of the ground state baryon's (N and \Delta) masses and axial couplings in the combined 1/Nc and chiral expansions. Renormalization and alternative power counting schemes are discussed to one loop (NNLO). An application is made to lattice QCD results for non-strange baryon masses and the nucleon...
hep-ph/0203254
Renard Fernand Michel
M. Beccaria, F.M. Renard and C. Verzegnassi
Logarithmic Fingerprints of Virtual Supersymmetry
11 pages e-mail: renard@lpm.univ-montp2.fr
null
null
DESY Linear Collider Note: LC-TH-2002-005
hep-ph
null
We consider the high energy behaviour of the amplitudes for production of leptons, quarks, Higgs bosons, sleptons, squarks, gauge bosons, charginos, neutralinos. We concentrate our discussion on the universal (process independent) logarithmic terms which factorize the Born amplitude and which are typically of the for...
[ { "created": "Wed, 27 Mar 2002 12:00:12 GMT", "version": "v1" }, { "created": "Fri, 31 Jan 2003 11:50:15 GMT", "version": "v2" } ]
2007-05-23
[ [ "Beccaria", "M.", "" ], [ "Renard", "F. M.", "" ], [ "Verzegnassi", "C.", "" ] ]
We consider the high energy behaviour of the amplitudes for production of leptons, quarks, Higgs bosons, sleptons, squarks, gauge bosons, charginos, neutralinos. We concentrate our discussion on the universal (process independent) logarithmic terms which factorize the Born amplitude and which are typically of the form ...
hep-ph/0508045
Marcos Rodriguez Cardoso
D. T. Huong, M. C. Rodriguez and H. N. Long
Scalar sector of Supersymmetric ${SU}(3)_C\otimes {SU}(3)_L \otimes {U}(1)_N$ Model with right-handed neutrinos
26 pages, 12 figures
null
null
null
hep-ph
null
We investigate a scalar sector of the supersymmetric $ SU_C(3) \otimes SU_L(3)\otimes U_N(1)$ model with right-handed neutrinos. The mass spectra are derived. We show that only neutral Higgs sector with lepton number L=0 could have a VEV. There is no mixing between scalars having L=0 and bilepton scalars having L=2. ...
[ { "created": "Wed, 3 Aug 2005 12:09:19 GMT", "version": "v1" } ]
2007-05-23
[ [ "Huong", "D. T.", "" ], [ "Rodriguez", "M. C.", "" ], [ "Long", "H. N.", "" ] ]
We investigate a scalar sector of the supersymmetric $ SU_C(3) \otimes SU_L(3)\otimes U_N(1)$ model with right-handed neutrinos. The mass spectra are derived. We show that only neutral Higgs sector with lepton number L=0 could have a VEV. There is no mixing between scalars having L=0 and bilepton scalars having L=2. Th...
0901.1045
S. Mallik
S. Mallik and Sourav Sarkar
Real-time propagators at finite temperature and chemical potential
null
Eur.Phys.J.C61:489-494,2009
10.1140/epjc/s10052-009-0990-6
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We derive a form of spectral representations for all bosonic and fermionic propagators in the real-time formulation of field theory at finite temperature and chemical potential. Besides being simple and symmetrical between the bosonic and the fermionic types, these representations depend explicitly on analytic functi...
[ { "created": "Thu, 8 Jan 2009 13:48:31 GMT", "version": "v1" } ]
2009-07-22
[ [ "Mallik", "S.", "" ], [ "Sarkar", "Sourav", "" ] ]
We derive a form of spectral representations for all bosonic and fermionic propagators in the real-time formulation of field theory at finite temperature and chemical potential. Besides being simple and symmetrical between the bosonic and the fermionic types, these representations depend explicitly on analytic function...
2307.09509
Rasmi Enrique Hajjar Mu\~noz
Rasmi Hajjar, Sergio Palomares-Ruiz, Olga Mena
Shedding light on the $\Delta m^2_{21}$ tension with supernova neutrinos
10 pages, 4 figures. It matches the version accepted for publication
Phys.Lett.B 854 (2024) 138719
10.1016/j.physletb.2024.138719
IFIC/23-26
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
One long-standing tension in the determination of neutrino parameters is the mismatched value of the solar mass square difference, $\Delta m_{21}^2$, measured by different experiments: the reactor antineutrino experiment KamLAND finds a best fit larger than the one obtained with solar neutrino data. Even if the curre...
[ { "created": "Tue, 18 Jul 2023 18:00:03 GMT", "version": "v1" }, { "created": "Thu, 30 May 2024 15:17:51 GMT", "version": "v2" } ]
2024-05-31
[ [ "Hajjar", "Rasmi", "" ], [ "Palomares-Ruiz", "Sergio", "" ], [ "Mena", "Olga", "" ] ]
One long-standing tension in the determination of neutrino parameters is the mismatched value of the solar mass square difference, $\Delta m_{21}^2$, measured by different experiments: the reactor antineutrino experiment KamLAND finds a best fit larger than the one obtained with solar neutrino data. Even if the current...
hep-ph/0411139
Chong-Sa Lim
C.S. Lim (Kobe U.), E. Takasugi (Osaka U.), M. Yoshimura (Okayama U.)
A variety of lepton number violating processes related to Majorana neutrino masses
15 pages, 1 figure
Prog.Theor.Phys. 113 (2005) 1367-1375
10.1143/PTP.113.1367
KOBE-TH-04-06
hep-ph
null
A Majorana type of the neutrino mass matrix induces a class of lepton number violating processes. Cross sections of these reactions are given in terms of the neutrino mass matrix element, and a semi-realistic event rate is estimated. These processes provide mass and mixing parameters not directly accessible by the ne...
[ { "created": "Wed, 10 Nov 2004 07:25:05 GMT", "version": "v1" } ]
2009-11-10
[ [ "Lim", "C. S.", "", "Kobe U." ], [ "Takasugi", "E.", "", "Osaka U." ], [ "Yoshimura", "M.", "", "Okayama U." ] ]
A Majorana type of the neutrino mass matrix induces a class of lepton number violating processes. Cross sections of these reactions are given in terms of the neutrino mass matrix element, and a semi-realistic event rate is estimated. These processes provide mass and mixing parameters not directly accessible by the neut...
1505.01721
Yuta Hamada
Yuta Hamada, Kiyoharu Kawana, Koji Tsumura
Landau pole in the Standard Model with weakly interacting scalar fields
8 pages, 2 figures, 2 tables(v1); published version(v2)
Phys.Lett. B747 (2015) 238-244
10.1016/j.physletb.2015.05.072
KUNS-2560
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the Standard Model with a new scalar field $X$ which is a $n_X^{}$ representation of the $SU(2)_L$ with a hypercharge $Y_X$. The renormalization group running effects on the new scalar quartic coupling constants are evaluated. Even if we set the scalar quartic coupling constants to be zero at the scale of...
[ { "created": "Thu, 7 May 2015 14:34:43 GMT", "version": "v1" }, { "created": "Tue, 16 Jun 2015 11:45:54 GMT", "version": "v2" } ]
2015-06-17
[ [ "Hamada", "Yuta", "" ], [ "Kawana", "Kiyoharu", "" ], [ "Tsumura", "Koji", "" ] ]
We consider the Standard Model with a new scalar field $X$ which is a $n_X^{}$ representation of the $SU(2)_L$ with a hypercharge $Y_X$. The renormalization group running effects on the new scalar quartic coupling constants are evaluated. Even if we set the scalar quartic coupling constants to be zero at the scale of t...
hep-ph/0211274
Utpal Sarkar
H.V. Klapdor-Kleingrothaus and U. Sarkar
Neutrinoless double beta decay with scalar bilinears
11 pages latex with 3 figures
Phys.Lett. B554 (2003) 45-50
10.1016/S0370-2693(02)03270-7
null
hep-ph
null
One possible probe to physics beyond the standard model is to look for scalar bilinears, which couple to two fermions of the standard model. We point out that the scalar bilinears allow new diagrams contributing to the neutrinoless double beta decay. The upper bound on the neutrinoless double beta decay lifetime woul...
[ { "created": "Mon, 18 Nov 2002 10:13:19 GMT", "version": "v1" } ]
2009-11-07
[ [ "Klapdor-Kleingrothaus", "H. V.", "" ], [ "Sarkar", "U.", "" ] ]
One possible probe to physics beyond the standard model is to look for scalar bilinears, which couple to two fermions of the standard model. We point out that the scalar bilinears allow new diagrams contributing to the neutrinoless double beta decay. The upper bound on the neutrinoless double beta decay lifetime would ...
1304.1997
Yu-Feng Zhou
Hong-Bo Jin, Yue-Liang Wu, Yu-Feng Zhou
Implications of the first AMS-02 measurement for dark matter annihilation and decay
27 pages, 12 figures, 3 tables, in-depth discussions on the uncertainties in backgrounds and propagation models added, version to appear in JCAP
null
10.1088/1475-7516/2013/11/026
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In light of the first measurement of the positron fraction by the AMS-02 experiment, we perform a detailed global analysis on the interpretation of the latest data of PAMELA, Fermi-LAT, and AMS-02 in terms of dark matter (DM) annihilation and decay in various propagation models. The allowed regions for the DM particl...
[ { "created": "Sun, 7 Apr 2013 13:39:54 GMT", "version": "v1" }, { "created": "Mon, 15 Apr 2013 14:43:25 GMT", "version": "v2" }, { "created": "Thu, 7 Nov 2013 12:29:44 GMT", "version": "v3" } ]
2015-06-15
[ [ "Jin", "Hong-Bo", "" ], [ "Wu", "Yue-Liang", "" ], [ "Zhou", "Yu-Feng", "" ] ]
In light of the first measurement of the positron fraction by the AMS-02 experiment, we perform a detailed global analysis on the interpretation of the latest data of PAMELA, Fermi-LAT, and AMS-02 in terms of dark matter (DM) annihilation and decay in various propagation models. The allowed regions for the DM particle ...
1412.4288
Giulia Ricciardi
Giulia Ricciardi
Status of $|V_{cb}|$ and $|V_{ub}|$ CKM matrix elements
12 pages, to be published in AIP Proceedings of the XI Quark Confinement and Hadron Spectrum Conference, Sep 8-12, 2014
AIP Conf. Proc. 1701, 050014 (2016)
10.1063/1.4938654
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We summarize the status of $|V_{cb}|$ and $|V_{ub}|$ determinations, including the long standing tension among exclusive and inclusive determinations. We also discuss $B$ meson semileptonic decays to excited states of the charm meson spectrum and leptonic and semileptonic $B$ decays into final states which include $\...
[ { "created": "Sat, 13 Dec 2014 22:09:04 GMT", "version": "v1" } ]
2016-01-28
[ [ "Ricciardi", "Giulia", "" ] ]
We summarize the status of $|V_{cb}|$ and $|V_{ub}|$ determinations, including the long standing tension among exclusive and inclusive determinations. We also discuss $B$ meson semileptonic decays to excited states of the charm meson spectrum and leptonic and semileptonic $B$ decays into final states which include $\ta...
1403.4903
Claudia Ratti
Paolo Alba, Wanda Alberico, Rene Bellwied, Marcus Bluhm, Valentina Mantovani Sarti, Marlene Nahrgang, Claudia Ratti
Freeze-out conditions from net-proton and net-charge fluctuations at RHIC
7 pages, 6 figures, particle ratio figure added
null
10.1016/j.physletb.2014.09.052
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate ratios of higher-order susceptibilities quantifying fluctuations in the number of net protons and in the net-electric charge using the Hadron Resonance Gas (HRG) model. We take into account the effect of resonance decays, the kinematic acceptance cuts in rapidity, pseudo-rapidity and transverse momentum ...
[ { "created": "Wed, 19 Mar 2014 18:26:52 GMT", "version": "v1" }, { "created": "Mon, 21 Jul 2014 10:38:10 GMT", "version": "v2" } ]
2015-06-19
[ [ "Alba", "Paolo", "" ], [ "Alberico", "Wanda", "" ], [ "Bellwied", "Rene", "" ], [ "Bluhm", "Marcus", "" ], [ "Sarti", "Valentina Mantovani", "" ], [ "Nahrgang", "Marlene", "" ], [ "Ratti", "Claudia", "" ]...
We calculate ratios of higher-order susceptibilities quantifying fluctuations in the number of net protons and in the net-electric charge using the Hadron Resonance Gas (HRG) model. We take into account the effect of resonance decays, the kinematic acceptance cuts in rapidity, pseudo-rapidity and transverse momentum us...
2405.12692
Aleksei Kampf
S. Bondarenko (1,5), Ya. Dydyshka (2,3,5), L. Kalinovskaya (2,4), A. Kampf (2,4), R. Sadykov (2), V. Yermolchyk (2,3,5) ((1) Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Dubna, Russia, (2) Dzhelepov Laboratory of Nuclear Problems, Joint Institute for Nuclear Research, Dubn...
EW one-loop corrections to the longitudinally polarized Drell-Yan process. Charged-current case II
null
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Complete one-loop electroweak radiative corrections to the charged-current Drell-Yan processes $pp \to \ell^{+}\nu_{\ell}(+X)$ and $pp \to \ell^{-}\bar{\nu}_{\ell}(+X)$ are presented for the case of longitudinal polarization of initial particles. The results can be used to obtain precise predictions for the kinematic...
[ { "created": "Tue, 21 May 2024 11:33:15 GMT", "version": "v1" }, { "created": "Thu, 20 Jun 2024 10:27:13 GMT", "version": "v2" } ]
2024-06-21
[ [ "Bondarenko", "S.", "" ], [ "Dydyshka", "Ya.", "" ], [ "Kalinovskaya", "L.", "" ], [ "Kampf", "A.", "" ], [ "Sadykov", "R.", "" ], [ "Yermolchyk", "V.", "" ] ]
Complete one-loop electroweak radiative corrections to the charged-current Drell-Yan processes $pp \to \ell^{+}\nu_{\ell}(+X)$ and $pp \to \ell^{-}\bar{\nu}_{\ell}(+X)$ are presented for the case of longitudinal polarization of initial particles. The results can be used to obtain precise predictions for the kinematic d...