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1111.5705
Valeriy Nazaruk
Valeriy Nazaruk
Models of $n\bar{n}$ transition in medium
10 pages, 2 figures. arXiv admin note: substantial text overlap with arXiv:1101.2310 and arXiv:1003.4360
null
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The present state of the $n\bar{n}$ transition problem is briefly outlined. The models based on the diagram technique for direct reactions, potential description of $\bar{n}$-medium interaction and field-theoretical approach are considered. It is shown that for the $n\bar{n}$ transition in medium field-theoretical ap...
[ { "created": "Thu, 24 Nov 2011 09:38:01 GMT", "version": "v1" } ]
2011-11-28
[ [ "Nazaruk", "Valeriy", "" ] ]
The present state of the $n\bar{n}$ transition problem is briefly outlined. The models based on the diagram technique for direct reactions, potential description of $\bar{n}$-medium interaction and field-theoretical approach are considered. It is shown that for the $n\bar{n}$ transition in medium field-theoretical appr...
1901.01936
Mikhail Voloshin
M.B. Voloshin
Strange hadrocharmonium
7 pages, 2 figures
null
10.1016/j.physletb.2019.135022
FTPI-MINN-19/02, UMN-TH-3811/19
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It has been recently suggested that the charged charmoniumlike resonances $Z_c(4100)$ and $Z_c(4200)$ are two states of hadrocharmonium, related by the charm quark spin symmetry in the same way as the lowest charmonium states $\eta_c$ and $J/\psi$. It is pointed out here that in this picture one might expect existenc...
[ { "created": "Mon, 7 Jan 2019 17:36:03 GMT", "version": "v1" }, { "created": "Mon, 14 Jan 2019 16:56:09 GMT", "version": "v2" } ]
2019-10-16
[ [ "Voloshin", "M. B.", "" ] ]
It has been recently suggested that the charged charmoniumlike resonances $Z_c(4100)$ and $Z_c(4200)$ are two states of hadrocharmonium, related by the charm quark spin symmetry in the same way as the lowest charmonium states $\eta_c$ and $J/\psi$. It is pointed out here that in this picture one might expect existence ...
hep-ph/9409210
Fredrick Olness
Fredrick I. Olness and Stephan T. Riemersma
Leptoproduction of Heavy Quarks in the Fixed and Variable Flavor Schemes (CONFERENCE Version)
LaTeX format, 4 pages, 2 figures in uuencoded format. Postscript file available from ftp://smuphy.physics.smu.edu/usr/ftpdir/pub/papers . **Presented at the Eighth DPF Meeting, Albuquerque, NM, August, 1994** (Conference version of SMU-HEP/94-21.)
null
null
SMU-HEP/94-22
hep-ph
null
We compare the results of the fixed-flavor scheme calculation of Laenen, Riemersma, Smith and van Neerven with the variable-flavor scheme calculation of Aivazis, Collins, Olness and Tung for neutral-current (photon-mediated) heavy-flavor (charm and bottom) production. We compare the structure function $F_2(x,Q^2)$ th...
[ { "created": "Fri, 2 Sep 1994 01:14:31 GMT", "version": "v1" } ]
2007-05-23
[ [ "Olness", "Fredrick I.", "" ], [ "Riemersma", "Stephan T.", "" ] ]
We compare the results of the fixed-flavor scheme calculation of Laenen, Riemersma, Smith and van Neerven with the variable-flavor scheme calculation of Aivazis, Collins, Olness and Tung for neutral-current (photon-mediated) heavy-flavor (charm and bottom) production. We compare the structure function $F_2(x,Q^2)$ thro...
hep-ph/9912490
Piet Mulders
A. Bacchetta, M. Boglione, A. Henneman and P.J. Mulders
Bounds on transverse momentum dependent distribution and fragmentation functions
5 pages, Revtex, 3 Postscript figures, version with minor changes, to be published in Physical Review Letters
Phys.Rev.Lett.85:712-715,2000
10.1103/PhysRevLett.85.712
VUTH 99-25
hep-ph
null
We give bounds on the distribution and fragmentation functions that appear at leading order in deep inelastic 1-particle inclusive leptoproduction or in Drell-Yan processes. These bounds simply follow from positivity of the defining matrix elements and are an important guidance in estimating the magnitude of the azim...
[ { "created": "Thu, 23 Dec 1999 15:26:26 GMT", "version": "v1" }, { "created": "Wed, 14 Jun 2000 14:46:13 GMT", "version": "v2" } ]
2011-07-19
[ [ "Bacchetta", "A.", "" ], [ "Boglione", "M.", "" ], [ "Henneman", "A.", "" ], [ "Mulders", "P. J.", "" ] ]
We give bounds on the distribution and fragmentation functions that appear at leading order in deep inelastic 1-particle inclusive leptoproduction or in Drell-Yan processes. These bounds simply follow from positivity of the defining matrix elements and are an important guidance in estimating the magnitude of the azimut...
1501.06806
Olga Piskounova I.
Olga I. Piskounova
Baryon Production at LHC and Very High Energy Cosmic Ray Spectra
7 pages with 7 figures, talk given at Symposium on Very High Energy Cosmic Rays Interactions, 18-22 August 2014, CERN
EPJ Web Conf. 99 (2015) 10007
10.1051/epjconf/20159910007
null
hep-ph astro-ph.HE hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The spectra of baryons at LHC can explain the features of the proton spectra in cosmic rays (CR). It seems important to study all baryon data that are available from collider experiments in wide range of energies. Transverse momentum spectra of baryons from RHIC ($\sqrt(s)$=62 and 200 GeV) and from LHC ($\sqrt(s)$=0....
[ { "created": "Tue, 27 Jan 2015 16:21:14 GMT", "version": "v1" } ]
2018-11-12
[ [ "Piskounova", "Olga I.", "" ] ]
The spectra of baryons at LHC can explain the features of the proton spectra in cosmic rays (CR). It seems important to study all baryon data that are available from collider experiments in wide range of energies. Transverse momentum spectra of baryons from RHIC ($\sqrt(s)$=62 and 200 GeV) and from LHC ($\sqrt(s)$=0.9 ...
1206.3420
Singh N.Nimai
Ng. K. Francis, N. Nimai Singh
Validity of quasi-degenerate neutrino mass models and their predictions on baryogenesis
17 pages, no figure, poster presentation in the 25th International Conference on neutrino physics and Astrophysics, Kyoto, Japan, July,2012
Nuclear Physics B 863 (2012)19-32
10.1016/j.nuclphysb.2012.05.017
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Quasi-degenerate neutrino mass models (QDN) which can explain the current data on neutrino masses and mixings,are studied. In the first part, we study the effect of CP-phases on QDN mass matrix obeying $\mu-\tau$ symmetry in normal hierarchical (QD-NH) and inverted hierarchical (QD-IH) patterns.The numerical predicti...
[ { "created": "Fri, 15 Jun 2012 10:48:03 GMT", "version": "v1" } ]
2012-06-18
[ [ "Francis", "Ng. K.", "" ], [ "Singh", "N. Nimai", "" ] ]
Quasi-degenerate neutrino mass models (QDN) which can explain the current data on neutrino masses and mixings,are studied. In the first part, we study the effect of CP-phases on QDN mass matrix obeying $\mu-\tau$ symmetry in normal hierarchical (QD-NH) and inverted hierarchical (QD-IH) patterns.The numerical prediction...
1206.0264
Enrico Maria Sessolo
Andrew Fowlie, Malgorzata Kazana, Kamila Kowalska, Shoaib Munir, Leszek Roszkowski, Enrico Maria Sessolo, Sebastian Trojanowski, Yue-Lin Sming Tsai
Constrained MSSM favoring new territories: The impact of new LHC limits and a 125 GeV Higgs boson
24 pages, 17 figures. PRD-approved version; Higgs bounds case removed as obsolete in light of the Higgs discovery
Phys.Rev. D86 (2012) 075010
10.1103/PhysRevD.86.075010
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present an updated and extended global analysis of the Constrained MSSM (CMSSM) taking into account new limits on supersymmetry from ~5/fb data sets at the LHC. In particular, in the case of the razor limit obtained by the CMS Collaboration we simulate detector efficiency for the experimental analysis and derive a...
[ { "created": "Fri, 1 Jun 2012 17:58:44 GMT", "version": "v1" }, { "created": "Tue, 19 Jun 2012 13:42:09 GMT", "version": "v2" }, { "created": "Thu, 5 Jul 2012 14:08:41 GMT", "version": "v3" }, { "created": "Wed, 3 Oct 2012 09:37:26 GMT", "version": "v4" } ]
2013-05-20
[ [ "Fowlie", "Andrew", "" ], [ "Kazana", "Malgorzata", "" ], [ "Kowalska", "Kamila", "" ], [ "Munir", "Shoaib", "" ], [ "Roszkowski", "Leszek", "" ], [ "Sessolo", "Enrico Maria", "" ], [ "Trojanowski", "Sebastian"...
We present an updated and extended global analysis of the Constrained MSSM (CMSSM) taking into account new limits on supersymmetry from ~5/fb data sets at the LHC. In particular, in the case of the razor limit obtained by the CMS Collaboration we simulate detector efficiency for the experimental analysis and derive an ...
0912.4299
Francesco Tramontano
Mario Abud, Franco Buccella, Francesco Tramontano
Hints for the existence of hexaquark states in the baryon-antibaryon sector
17 pages
Phys.Rev.D81:074018,2010
10.1103/PhysRevD.81.074018
DSF-NA 15-2009, CERN-PH-TH/2009-246
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The discovery of some baryon-antibaryon resonances has led us to consider 3q~3\bar{q} systems as possible candidates. We predict their spectrum in the framework of a constituent model, where the chromo-magnetic interaction plays the main role. The relevant parameters are fixed by the present knowledge on tetraquarks....
[ { "created": "Tue, 22 Dec 2009 00:22:35 GMT", "version": "v1" } ]
2010-05-12
[ [ "Abud", "Mario", "" ], [ "Buccella", "Franco", "" ], [ "Tramontano", "Francesco", "" ] ]
The discovery of some baryon-antibaryon resonances has led us to consider 3q~3\bar{q} systems as possible candidates. We predict their spectrum in the framework of a constituent model, where the chromo-magnetic interaction plays the main role. The relevant parameters are fixed by the present knowledge on tetraquarks. T...
2302.07574
St\'ephane Peign\'e
St\'ephane Peign\'e
Introduction to color in QCD: Initiation to the birdtrack pictorial technique
27 pages, Lectures given at the "6th Chilean School of High Energy Physics", Valparaiso, January 16-19, 2023
null
null
null
hep-ph hep-th math-ph math.MP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
These lectures are an elementary introduction to the "birdtrack" color pictorial technique, a useful tool in QCD. We review the basic rules, discuss color conservation and infinitesimal color rotations, learn how to project on partonic color states, how to derive their Casimir charges... and at the same time learn a ...
[ { "created": "Wed, 15 Feb 2023 10:33:44 GMT", "version": "v1" } ]
2023-02-16
[ [ "Peigné", "Stéphane", "" ] ]
These lectures are an elementary introduction to the "birdtrack" color pictorial technique, a useful tool in QCD. We review the basic rules, discuss color conservation and infinitesimal color rotations, learn how to project on partonic color states, how to derive their Casimir charges... and at the same time learn a li...
2112.08083
Motoo Suzuki
Seung J. Lee, Yuichiro Nakai, Motoo Suzuki
High Quality Axion via a Doubly Composite Dynamics
27 pages, 7 figures
null
10.1007/JHEP03(2022)038
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore a new framework that furnishes a mechanism to simultaneously address the electroweak naturalness problem and the axion high quality problem. The framework is based on a doubly composite dynamics where the second confinement takes place after the CFT encounters the first confinement and the theory flows int...
[ { "created": "Wed, 15 Dec 2021 12:37:58 GMT", "version": "v1" } ]
2022-03-23
[ [ "Lee", "Seung J.", "" ], [ "Nakai", "Yuichiro", "" ], [ "Suzuki", "Motoo", "" ] ]
We explore a new framework that furnishes a mechanism to simultaneously address the electroweak naturalness problem and the axion high quality problem. The framework is based on a doubly composite dynamics where the second confinement takes place after the CFT encounters the first confinement and the theory flows into ...
1310.4455
Patrick Otto Ludl
Patrick Otto Ludl
Current status of constraints on the elements of the neutrino mass matrix
7 pages, 1 figure; Talk presented at the XXXVII International Conference of Theoretical Physics "Matter to the deepest," Ustron, 1-6 September 2013
null
10.5506/APhysPolB.44.2339
UWThPh-2013-29
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyse the mass matrix of the three light neutrinos in the basis where the charged-lepton mass matrix is diagonal and discuss constraints on its elements for the Majorana and the Dirac case.
[ { "created": "Wed, 16 Oct 2013 17:18:18 GMT", "version": "v1" } ]
2015-06-17
[ [ "Ludl", "Patrick Otto", "" ] ]
We analyse the mass matrix of the three light neutrinos in the basis where the charged-lepton mass matrix is diagonal and discuss constraints on its elements for the Majorana and the Dirac case.
2310.07776
Harri Parkkinen
Kimmo Kainulainen and Harri Parkkinen
Quantum kinetic equations with flavor and particle-antiparticle coherences for neutrinos
8 pages, 2 figures. Presented at the 38th International Cosmic Ray Conference (ICRC2023)
null
null
null
hep-ph astro-ph.HE hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We develop a formalism to model neutrino evolution encompassing both flavor and particle-antiparticle mixings and decohering collisions. Our results include a quantum kinetic equation (a set of coupled scalar equations) for the generalized neutrino density matrix, valid for arbitrary neutrino masses and kinematics, a...
[ { "created": "Wed, 11 Oct 2023 18:04:30 GMT", "version": "v1" } ]
2023-10-13
[ [ "Kainulainen", "Kimmo", "" ], [ "Parkkinen", "Harri", "" ] ]
We develop a formalism to model neutrino evolution encompassing both flavor and particle-antiparticle mixings and decohering collisions. Our results include a quantum kinetic equation (a set of coupled scalar equations) for the generalized neutrino density matrix, valid for arbitrary neutrino masses and kinematics, and...
0803.0646
Eugene Levin
E. Levin and J. Miller (Tel Aviv Univ.)
Two parton shower background for associate W Higgs production
35 pages and 10 figures in eps files
Eur.Phys.J.C61:1-31,2009
10.1140/epjc/s10052-009-0961-y
TAUP-2870-08
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The estimates of the background for the associate W Higgs production, which stems from the two parton shower production. It is about 1 - 2.5 times larger than the signal. However, this background does not depend on the rapidity difference between the W and the $b \bar{b}$ pair, while the signal peaks when the rapidit...
[ { "created": "Wed, 5 Mar 2008 12:25:16 GMT", "version": "v1" } ]
2009-07-22
[ [ "Levin", "E.", "", "Tel Aviv Univ." ], [ "Miller", "J.", "", "Tel Aviv Univ." ] ]
The estimates of the background for the associate W Higgs production, which stems from the two parton shower production. It is about 1 - 2.5 times larger than the signal. However, this background does not depend on the rapidity difference between the W and the $b \bar{b}$ pair, while the signal peaks when the rapidity ...
1504.06944
Yong Tang
P. Ko, Wan-Il Park, Yong Tang
Higgs-Portal Dark Matter for GeV Gamma-Ray Excess
4 pages, 4 figures, proceeding of the 2nd Toyama Workshop on "Higgs as a Probe of New Physics 2015", 11-15 February 2015
null
null
null
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present Higgs-Portal dark matter (DM) models to explain the reported Galactic Center GeV gamma-ray excess. Naive effective theories are inconsistent with direct detection constraint for the relevant parameter range. Simple extended models with dark gauge symmetries can easily accommodate the gamma-ray excess throu...
[ { "created": "Mon, 27 Apr 2015 06:21:19 GMT", "version": "v1" } ]
2015-04-28
[ [ "Ko", "P.", "" ], [ "Park", "Wan-Il", "" ], [ "Tang", "Yong", "" ] ]
We present Higgs-Portal dark matter (DM) models to explain the reported Galactic Center GeV gamma-ray excess. Naive effective theories are inconsistent with direct detection constraint for the relevant parameter range. Simple extended models with dark gauge symmetries can easily accommodate the gamma-ray excess through...
2305.11205
Jack Manley
J. Manley and R. Stump and R. Petery and and S. Singh
Searching for Scalar Ultralight Dark Matter with Optical Fibers
null
null
null
null
hep-ph astro-ph.IM physics.ins-det physics.optics quant-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider optical fibers as detectors for scalar ultralight dark matter (UDM) and propose using a fiber-based interferometer to search for scalar UDM with particle mass in the range $10^{-17} - 10^{-13}$ eV/$c^2$ $\left(10^{-3}- 10 \text{ Hz}\right)$. Composed of a solid core and a hollow core fiber, the proposed d...
[ { "created": "Thu, 18 May 2023 17:23:09 GMT", "version": "v1" } ]
2023-05-22
[ [ "Manley", "J.", "" ], [ "Stump", "R.", "" ], [ "Petery", "R.", "" ], [ "Singh", "and S.", "" ] ]
We consider optical fibers as detectors for scalar ultralight dark matter (UDM) and propose using a fiber-based interferometer to search for scalar UDM with particle mass in the range $10^{-17} - 10^{-13}$ eV/$c^2$ $\left(10^{-3}- 10 \text{ Hz}\right)$. Composed of a solid core and a hollow core fiber, the proposed det...
1507.07380
Jens Krog Mr.
Jens Krog
SM vacuum stability and the Weyl consistency conditions: Counting to three
8 pages, 3 figures. Talk given at the Summer School and Workshop on the Standard Model and Beyond 2013; to appear in the Proceedings of the Corfu Summer Institute 2014 "School and Workshops on Elementary Particle Physics and Gravity" Proceedings of the Corfu Summer Institute 2014
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We demonstrate how a new perturbative ordering may result from the structure of the Weyl anomaly. Respecting the abelian nature of the Weyl anomaly at the lowest order enforces the use of beta functions calculated to a different loop order for different types of couplings. These consistency conditions are found to be...
[ { "created": "Mon, 27 Jul 2015 12:04:37 GMT", "version": "v1" } ]
2015-07-28
[ [ "Krog", "Jens", "" ] ]
We demonstrate how a new perturbative ordering may result from the structure of the Weyl anomaly. Respecting the abelian nature of the Weyl anomaly at the lowest order enforces the use of beta functions calculated to a different loop order for different types of couplings. These consistency conditions are found to be s...
hep-ph/9810469
J. G. Contreras
J. G. Contreras, R. Huerta and L. R. Quintero
The baryon magnetic moments of the octet and the decuplet using different limits of the SU(3) flavor group
Extended discussion of the decuplet baryons. Final published version
Rev. Mex. Fis. 50(5) (2004) 490-494
null
null
hep-ph
null
Working within the non relativistic quark model a two parameter fit to the magnetic moments of baryons is presented. The fit has an excellent $\chi^2$. The model is based on taking different flavor groups to describe the different magnetic moments. The selection of which group to assign to each baryon is guided by th...
[ { "created": "Sat, 24 Oct 1998 17:14:41 GMT", "version": "v1" }, { "created": "Mon, 8 Nov 2004 20:09:53 GMT", "version": "v2" } ]
2007-05-23
[ [ "Contreras", "J. G.", "" ], [ "Huerta", "R.", "" ], [ "Quintero", "L. R.", "" ] ]
Working within the non relativistic quark model a two parameter fit to the magnetic moments of baryons is presented. The fit has an excellent $\chi^2$. The model is based on taking different flavor groups to describe the different magnetic moments. The selection of which group to assign to each baryon is guided by the ...
hep-ph/9204212
Marek Karliner
John Ellis, Yitzhak Frishman, Amihay Hanany and Marek Karliner
Quark solitons as constituents of hadrons
27 p. + 8 figures (not included). Figures are available via ftp, see instructions in the paper
Nucl.Phys.B382:189-212,1992
10.1016/0550-3213(92)90183-C
null
hep-ph
null
We exhibit static solutions of multi-flavour QCD in two dimensions that have the quantum numbers of baryons and mesons, constructed out of quark and anti-quark solitons. In isolation the latter solitons have infinite energy, corresponding to the presence of a string carrying the non-singlet colour flux off to spatial...
[ { "created": "Tue, 7 Apr 1992 16:02:00 GMT", "version": "v1" } ]
2009-09-11
[ [ "Ellis", "John", "" ], [ "Frishman", "Yitzhak", "" ], [ "Hanany", "Amihay", "" ], [ "Karliner", "Marek", "" ] ]
We exhibit static solutions of multi-flavour QCD in two dimensions that have the quantum numbers of baryons and mesons, constructed out of quark and anti-quark solitons. In isolation the latter solitons have infinite energy, corresponding to the presence of a string carrying the non-singlet colour flux off to spatial i...
hep-ph/0204313
Oleg V. Pavlovsky
O. V. Pavlovsky (ITPM Msu)
Chiral Born-Infeld Theory: topological spherically symmetrical solitons
7 pages (LaTeX), 3 .eps figures, version to be published in Physics Letters B
Phys.Lett.B538:202,2002
10.1016/S0370-2693(02)01967-6
null
hep-ph
null
Finite-energy topological spherically symmetrical solutions of Chiral Born-Infeld Theory are studied. Properties of these solution are obtained, and a possible physical interpretation is also given.
[ { "created": "Fri, 26 Apr 2002 18:30:27 GMT", "version": "v1" }, { "created": "Mon, 13 May 2002 16:14:42 GMT", "version": "v2" }, { "created": "Tue, 9 Jul 2002 12:42:15 GMT", "version": "v3" } ]
2010-11-19
[ [ "Pavlovsky", "O. V.", "", "ITPM Msu" ] ]
Finite-energy topological spherically symmetrical solutions of Chiral Born-Infeld Theory are studied. Properties of these solution are obtained, and a possible physical interpretation is also given.
1007.2323
Peihong Gu
Pei-Hong Gu, Utpal Sarkar
Leptogenesis with Linear, Inverse or Double Seesaw
6 pages. Published in Phys. Lett. B
Phys.Lett.B694:226-232,2010
10.1016/j.physletb.2010.09.062
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The left-right symmetric model with doublet and bi-doublet Higgs scalars can accommodate linear, inverse or double seesaw for generating small neutrino masses in the presence of three singlet fermions. If the singlet fermions have small Majorana masses, they can form three pairs of quasi-degenerate Majorana fermions ...
[ { "created": "Wed, 14 Jul 2010 13:28:14 GMT", "version": "v1" }, { "created": "Thu, 28 Oct 2010 10:45:45 GMT", "version": "v2" } ]
2010-10-29
[ [ "Gu", "Pei-Hong", "" ], [ "Sarkar", "Utpal", "" ] ]
The left-right symmetric model with doublet and bi-doublet Higgs scalars can accommodate linear, inverse or double seesaw for generating small neutrino masses in the presence of three singlet fermions. If the singlet fermions have small Majorana masses, they can form three pairs of quasi-degenerate Majorana fermions wi...
1308.4331
Guido Macorini Dr
M. Beccaria, G. Macorini, G. Panizzo and C. Verzegnassi
New Physics signals from measurable polarization asymmetries at LHC
typo corrected
null
10.1016/j.physletb.2014.01.010
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a new type of Z polarization asymmetry in bottom-Z production at LHC that should be realistically measurable and would provide the determination of the so-called $A_b$ parameter, whose available measured value still appears to be in disagreement with the Standard Model prediction. This polarization can be ...
[ { "created": "Tue, 20 Aug 2013 15:45:56 GMT", "version": "v1" }, { "created": "Wed, 21 Aug 2013 16:15:32 GMT", "version": "v2" } ]
2015-06-16
[ [ "Beccaria", "M.", "" ], [ "Macorini", "G.", "" ], [ "Panizzo", "G.", "" ], [ "Verzegnassi", "C.", "" ] ]
We propose a new type of Z polarization asymmetry in bottom-Z production at LHC that should be realistically measurable and would provide the determination of the so-called $A_b$ parameter, whose available measured value still appears to be in disagreement with the Standard Model prediction. This polarization can be me...
1211.2272
Pedro Fernando Simoes Costa
M. C. Ruivo, Pedro Costa, C. A. de Sousa
Effects of entanglement and instanton suppression at finite temperature in a SU(2) EPNJL model with anomaly
19 pages, 4 figures; PRD version
Phys.Rev. D86 (2012) 116007
10.1103/PhysRevD.86.116007
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the phase transitions characterized by deconfinement and restoration of chiral and axial symmetries,at finite temperature, in the framework of QCD inspired models. We compare the results obtained in the SU(2) Polyakov-Nambu-Jona-Lasinio model with anomaly and in its extended version, the Entangled Poly...
[ { "created": "Sat, 10 Nov 2012 00:42:15 GMT", "version": "v1" }, { "created": "Sun, 12 May 2013 11:55:09 GMT", "version": "v2" } ]
2013-05-14
[ [ "Ruivo", "M. C.", "" ], [ "Costa", "Pedro", "" ], [ "de Sousa", "C. A.", "" ] ]
We investigate the phase transitions characterized by deconfinement and restoration of chiral and axial symmetries,at finite temperature, in the framework of QCD inspired models. We compare the results obtained in the SU(2) Polyakov-Nambu-Jona-Lasinio model with anomaly and in its extended version, the Entangled Polyak...
hep-ph/0007204
Ivan Gaidaenko
I. V. Gaidaenko, V. A. Novikov, M. I. Vysotsky
On the production of a lepton pair in the collision of ultrarelativistic neutral particle with nonzero magnetic moment with nuclei
9 pages, 4 figures, numerical estimates are improved
Phys.Lett. B497 (2001) 49-54
10.1016/S0370-2693(00)01305-8
null
hep-ph
null
Explicit formulas which describe muon pair production in reaction $\gamma\nu \to \mu^+ \mu^- \nu$ through neutrino magnetic moment are obtained and used to derive in the leading approximation cross section of muon pair production in $\nu N$-scattering due to neutrino magnetic moment. This cross section appears to be ...
[ { "created": "Wed, 19 Jul 2000 10:57:51 GMT", "version": "v1" }, { "created": "Wed, 4 Oct 2000 12:17:16 GMT", "version": "v2" }, { "created": "Tue, 24 Oct 2000 11:54:01 GMT", "version": "v3" } ]
2009-10-31
[ [ "Gaidaenko", "I. V.", "" ], [ "Novikov", "V. A.", "" ], [ "Vysotsky", "M. I.", "" ] ]
Explicit formulas which describe muon pair production in reaction $\gamma\nu \to \mu^+ \mu^- \nu$ through neutrino magnetic moment are obtained and used to derive in the leading approximation cross section of muon pair production in $\nu N$-scattering due to neutrino magnetic moment. This cross section appears to be pr...
0908.0457
Sergey Afonin
S. S. Afonin
A five-dimensional toy-model for light hadron excitations
10 pages, to be published in Int. J. Mod. Phys. A
Int.J.Mod.Phys.A25:3933-3940,2010
10.1142/S0217751X10050196
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the usual holographic approach to QCD, the meson spectrum is generated due to a non-trivial 5-dimensional background. We propose an alternative 5-dimensional scenario in which the spectrum emerges due to coupling to a scalar field whose condensation is supposed to be dual to the formation of gluon condensate and m...
[ { "created": "Tue, 4 Aug 2009 15:05:54 GMT", "version": "v1" }, { "created": "Thu, 17 Jun 2010 11:20:53 GMT", "version": "v2" } ]
2014-11-20
[ [ "Afonin", "S. S.", "" ] ]
In the usual holographic approach to QCD, the meson spectrum is generated due to a non-trivial 5-dimensional background. We propose an alternative 5-dimensional scenario in which the spectrum emerges due to coupling to a scalar field whose condensation is supposed to be dual to the formation of gluon condensate and mim...
hep-ph/0506145
Srubabati Goswami
Raj Gandhi, Pomita Ghoshal, Srubabati Goswami, Poonam Mehta, S Uma Sankar
Probing the Neutrino Mass Hierarchy via Atmospheric $\nu_\mu + \bar \nu_\mu$ Survival Rates in Megaton Water Cerenkov Detectors
18 pages, 4 figures. Sigma sensitivity to the mass hierarchy has been recalculated using the difference in expected events in matter for normal and inverted hierarchies. In addition to absolute event rates, sensitivities for up/down ratios have also been calculated. Figures and tables updated to incorporate the...
null
null
null
hep-ph hep-ex
null
The neutrino mass hierarchy, presently unknown, is a powerful discriminator among various classes of unification theories. We show that the $\nu_{\mu} + \bar{\nu}_\mu$ survival rate in atmospheric events can provide a novel method of determining the hierarchy in megaton water Cerenkov detectors. For pathlength and en...
[ { "created": "Wed, 15 Jun 2005 15:12:16 GMT", "version": "v1" }, { "created": "Thu, 4 Aug 2005 08:33:21 GMT", "version": "v2" } ]
2007-05-23
[ [ "Gandhi", "Raj", "" ], [ "Ghoshal", "Pomita", "" ], [ "Goswami", "Srubabati", "" ], [ "Mehta", "Poonam", "" ], [ "Sankar", "S Uma", "" ] ]
The neutrino mass hierarchy, presently unknown, is a powerful discriminator among various classes of unification theories. We show that the $\nu_{\mu} + \bar{\nu}_\mu$ survival rate in atmospheric events can provide a novel method of determining the hierarchy in megaton water Cerenkov detectors. For pathlength and ener...
hep-ph/0407225
Giulia Ricciardi
Ugo Aglietti and Giulia Ricciardi
A model for next-to-leading order threshold resummed form factors
13 pages, 7 figures; enlarged version, sections added, typos corrected
Phys.Rev. D70 (2004) 114008
10.1103/PhysRevD.70.114008
DSFNA/14/04, ROME1/1377/04
hep-ph
null
We present a model for next-to-leading order resummed threshold form factors based on a time-like coupling recently introduced in the framework of small x physics. Improved expressions for the form factors in N-space are obtained which are not plagued by Landau-pole singularities, as the included absorptive effects -...
[ { "created": "Tue, 20 Jul 2004 13:15:52 GMT", "version": "v1" }, { "created": "Tue, 2 Nov 2004 16:02:25 GMT", "version": "v2" }, { "created": "Tue, 23 Nov 2004 21:25:50 GMT", "version": "v3" } ]
2016-09-06
[ [ "Aglietti", "Ugo", "" ], [ "Ricciardi", "Giulia", "" ] ]
We present a model for next-to-leading order resummed threshold form factors based on a time-like coupling recently introduced in the framework of small x physics. Improved expressions for the form factors in N-space are obtained which are not plagued by Landau-pole singularities, as the included absorptive effects -- ...
hep-ph/9908525
Mihail Tchijov
M. V. Chizhov and D. P. Kirilova
On Neutrino-Mixing-Generated Lepton Asymmetry and the Primordial Helium-4 Abundance
13 pages, 2 eps figures
null
null
IC/99/112
hep-ph
null
In this article we discuss lepton asymmetry effect on BBN with neutrino oscillations. We argue that asymmetry much smaller than 0.01, although not big enough to influence directly the nucleosynthesis kinetics, can effect considerably BBN indirectly via neutrino oscillations. Namely, it distorts neutrino spectrum and ...
[ { "created": "Tue, 31 Aug 1999 18:46:40 GMT", "version": "v1" } ]
2007-05-23
[ [ "Chizhov", "M. V.", "" ], [ "Kirilova", "D. P.", "" ] ]
In this article we discuss lepton asymmetry effect on BBN with neutrino oscillations. We argue that asymmetry much smaller than 0.01, although not big enough to influence directly the nucleosynthesis kinetics, can effect considerably BBN indirectly via neutrino oscillations. Namely, it distorts neutrino spectrum and ch...
1810.02205
Xianhui Zhong
Kai-Lei Wang, Qi-Fang L\"u, Xian-Hui Zhong
Interpretation of the newly observed $\Sigma_b(6097)^{\pm}$ and $\Xi_b(6227)^-$ states as the $P$-wave bottom baryons
7 pages. arXiv admin note: text overlap with arXiv:1709.04268
Phys. Rev. D 99, 014011 (2019)
10.1103/PhysRevD.99.014011
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
The strong decays of the $P$-wave $\Sigma_b$, $\Xi_b'$ and $\Omega_b$ baryons are investigated with a constituent quark model in the $j$-$j$ coupling scheme. The results show that the newly observed $\Sigma_b(6097)$ and $\Xi_b(6227)$ states by the LHCb collaboration can be assigned as the $\lambda$-mode $P$-wave sing...
[ { "created": "Wed, 3 Oct 2018 14:28:22 GMT", "version": "v1" }, { "created": "Sat, 29 Dec 2018 07:40:18 GMT", "version": "v2" } ]
2019-01-16
[ [ "Wang", "Kai-Lei", "" ], [ "Lü", "Qi-Fang", "" ], [ "Zhong", "Xian-Hui", "" ] ]
The strong decays of the $P$-wave $\Sigma_b$, $\Xi_b'$ and $\Omega_b$ baryons are investigated with a constituent quark model in the $j$-$j$ coupling scheme. The results show that the newly observed $\Sigma_b(6097)$ and $\Xi_b(6227)$ states by the LHCb collaboration can be assigned as the $\lambda$-mode $P$-wave singly...
0912.4894
Edward Shuryak
Raffaele Millo and Edward Shuryak
Macroscopic Chirality Fluctuations in Heavy Ion Collisions should induce CP forbidden Decays
null
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
f large fluctuations of quark chirality occur in heavy ion collisions, they result in macroscopic CP-odd "spots" of the so called theta-vacua, with a non-zero $\theta(x)$. We consider particular decays of mesons, CP-forbidden in the vacuum with zero $\theta$, like $\eta\to \pi\pi$. We evaluate their rates for such de...
[ { "created": "Thu, 24 Dec 2009 17:45:42 GMT", "version": "v1" } ]
2009-12-25
[ [ "Millo", "Raffaele", "" ], [ "Shuryak", "Edward", "" ] ]
f large fluctuations of quark chirality occur in heavy ion collisions, they result in macroscopic CP-odd "spots" of the so called theta-vacua, with a non-zero $\theta(x)$. We consider particular decays of mesons, CP-forbidden in the vacuum with zero $\theta$, like $\eta\to \pi\pi$. We evaluate their rates for such deca...
hep-ph/0501260
Boris Kopeliovich
B.Z.Kopeliovich, J.Nemchik, I.K.Potashnikova, M.B.Johnson, Ivan Schmidt
Breakdown of QCD factorization at large Feynman x
12 pages Latex, 8 figures (only technical corrections in the replacement)
Phys.Rev. C72 (2005) 054606
10.1103/PhysRevC.72.054606
USM-TH-166
hep-ph nucl-th
null
Recent measurements by the BRAHMS collaboration of high-pT hadron production at forward rapidities at RHIC found the relative production rate(d-Au)/(p-p) to be suppressed, rather than enhanced. Examining other known reactions (forward production of light hadrons, the Drell-Yan process, heavy flavor production, etc.),...
[ { "created": "Thu, 27 Jan 2005 18:01:11 GMT", "version": "v1" }, { "created": "Fri, 28 Jan 2005 16:37:51 GMT", "version": "v2" }, { "created": "Mon, 6 Jun 2005 16:24:42 GMT", "version": "v3" } ]
2009-11-11
[ [ "Kopeliovich", "B. Z.", "" ], [ "Nemchik", "J.", "" ], [ "Potashnikova", "I. K.", "" ], [ "Johnson", "M. B.", "" ], [ "Schmidt", "Ivan", "" ] ]
Recent measurements by the BRAHMS collaboration of high-pT hadron production at forward rapidities at RHIC found the relative production rate(d-Au)/(p-p) to be suppressed, rather than enhanced. Examining other known reactions (forward production of light hadrons, the Drell-Yan process, heavy flavor production, etc.), o...
hep-ph/0510404
Tetsuo Shindou
S. T. Petcov, W. Rodejohann, T. Shindou, and Y. Takanishi
The See-Saw Mechanism, Neutrino Yukawa Couplings, LFV Decays l_i to l_j + gamma and Leptogenesis
25 pages, 9 figures; typos corrected, few clarifying comments and one figure added; version submitted for publication
Nucl.Phys. B739 (2006) 208-233
10.1016/j.nuclphysb.2006.01.034
SISSA 78/2005/EP, IC/2005/102, TUM-HEP-606/05
hep-ph
null
The LFV charged lepton decays mu to e + gamma, tau to e + gamma and tau to mu + gamma and thermal leptogenesis are analysed in the MSSM with see-saw mechanism of neutrino mass generation and soft SUSY breaking with universal boundary conditions. The case of hierarchical heavy Majorana neutrino mass spectrum, M_1 << M...
[ { "created": "Mon, 31 Oct 2005 07:50:49 GMT", "version": "v1" }, { "created": "Mon, 21 Nov 2005 17:52:51 GMT", "version": "v2" } ]
2010-04-05
[ [ "Petcov", "S. T.", "" ], [ "Rodejohann", "W.", "" ], [ "Shindou", "T.", "" ], [ "Takanishi", "Y.", "" ] ]
The LFV charged lepton decays mu to e + gamma, tau to e + gamma and tau to mu + gamma and thermal leptogenesis are analysed in the MSSM with see-saw mechanism of neutrino mass generation and soft SUSY breaking with universal boundary conditions. The case of hierarchical heavy Majorana neutrino mass spectrum, M_1 << M_2...
1407.4747
Giancarlo Ferrera
Giancarlo Ferrera (Milan U. and INFN, Milan), Massimiliano Grazzini (Zurich U.), Francesco Tramontano (Naples U. and INFN, Naples)
Associated ZH production at hadron colliders: the fully differential NNLO QCD calculation
10 pages, 2 figures
null
10.1016/j.physletb.2014.11.040
IFUM-1031-FT, ZU-TH 23/14
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider Standard Model Higgs boson production in association with a Z boson in hadron collisions. We present a fully exclusive computation of QCD radiative corrections up to next-to-next-to-leading order (NNLO). Our calculation includes the Higgs boson decay to bottom quarks (b) in next-to-leading order QCD and t...
[ { "created": "Thu, 17 Jul 2014 17:33:18 GMT", "version": "v1" } ]
2015-06-22
[ [ "Ferrera", "Giancarlo", "", "Milan U. and INFN, Milan" ], [ "Grazzini", "Massimiliano", "", "Zurich U." ], [ "Tramontano", "Francesco", "", "Naples U. and INFN, Naples" ] ]
We consider Standard Model Higgs boson production in association with a Z boson in hadron collisions. We present a fully exclusive computation of QCD radiative corrections up to next-to-next-to-leading order (NNLO). Our calculation includes the Higgs boson decay to bottom quarks (b) in next-to-leading order QCD and the...
hep-ph/9608369
Kotikov Anatoly
A.V.Kotikov (ENSLAPP & JINR) and D.V.Peshekhonov (JINR)
On the $Q^2$ Dependence of Asymmetry $A_1$
LATEX, 3 pages, procl.sty included; talk at DIS96, Roma, April 1996
null
null
null
hep-ph
null
We analyse the proton and deutron data on spin dependent asymmetry $A_1(x,Q^2)$ supposing the DIS structure functions $g_1(x,Q^2)$ and $F_3(x,Q^2)$ have the similar $Q^2$-dependence.
[ { "created": "Mon, 19 Aug 1996 17:43:24 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kotikov", "A. V.", "", "ENSLAPP & JINR" ], [ "Peshekhonov", "D. V.", "", "JINR" ] ]
We analyse the proton and deutron data on spin dependent asymmetry $A_1(x,Q^2)$ supposing the DIS structure functions $g_1(x,Q^2)$ and $F_3(x,Q^2)$ have the similar $Q^2$-dependence.
1706.08726
Gergely Mark\'o
Gergely Mark\'o, Urko Reinosa and Zsolt Sz\'ep
Pad\'e approximants and analytic continuation of Euclidean Phi-derivable approximations
20 pages, 8 figures, uses RevTeX 4-1
null
10.1103/PhysRevD.96.036002
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the Pad\'e approximation method for the analytic continuation of numerical data and its ability to access, from the Euclidean propagator, both the spectral function and part of the physical information hidden in the second Riemann sheet. We test this method using various benchmarks at zero temperature:...
[ { "created": "Tue, 27 Jun 2017 08:46:13 GMT", "version": "v1" } ]
2017-09-13
[ [ "Markó", "Gergely", "" ], [ "Reinosa", "Urko", "" ], [ "Szép", "Zsolt", "" ] ]
We investigate the Pad\'e approximation method for the analytic continuation of numerical data and its ability to access, from the Euclidean propagator, both the spectral function and part of the physical information hidden in the second Riemann sheet. We test this method using various benchmarks at zero temperature: a...
1105.3679
Sven Faller
Sven Faller, Thomas Mannel and Sascha Turczyk
Limits on New Physics from exclusive $B \to D^{(*)}\ell \bar\nu$ Decays
7 pages
Phys.Rev.D84:014022,2011
10.1103/PhysRevD.84.014022
SI-HEP-2010-06
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the exclusive decays $B \to D^{(*)}\,\ell \bar\nu$ and study the effect of non $V-A$ structures on the observables. We extend the standard model hadronic current by additional right-handed vector as well as left- and right-handed scalar and tensor contributions and calculate the decay rates including the ...
[ { "created": "Wed, 18 May 2011 16:20:56 GMT", "version": "v1" } ]
2011-08-09
[ [ "Faller", "Sven", "" ], [ "Mannel", "Thomas", "" ], [ "Turczyk", "Sascha", "" ] ]
We consider the exclusive decays $B \to D^{(*)}\,\ell \bar\nu$ and study the effect of non $V-A$ structures on the observables. We extend the standard model hadronic current by additional right-handed vector as well as left- and right-handed scalar and tensor contributions and calculate the decay rates including the pe...
1306.3759
Tomoya Hayata
Tomoya Hayata
Dynamical Mass Generation of Vector Mesons from QCD Trace Anomaly
5 pages, 1 figure. v2: published version
null
10.1103/PhysRevD.88.036007
RIKEN-QHP-87
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Mass formulas for the light-vector mesons written in terms of the gluon condensate i.e., the trace anomaly in quantum chromodynamics (QCD), are derived on the basis of finite energy QCD sum rules. We utilize sum rules with $s^n$ and $s^{n+1/2}$ weights, which relate the energy-weighted spectral sums to the vacuum exp...
[ { "created": "Mon, 17 Jun 2013 07:54:14 GMT", "version": "v1" }, { "created": "Fri, 6 Sep 2013 02:30:19 GMT", "version": "v2" } ]
2015-06-16
[ [ "Hayata", "Tomoya", "" ] ]
Mass formulas for the light-vector mesons written in terms of the gluon condensate i.e., the trace anomaly in quantum chromodynamics (QCD), are derived on the basis of finite energy QCD sum rules. We utilize sum rules with $s^n$ and $s^{n+1/2}$ weights, which relate the energy-weighted spectral sums to the vacuum expec...
2007.03857
Antonio Ortiz
Gyula Benc\'edi, Antonio Ortiz, Sushanta Tripathy
Apparent modification of the jet-like yield in proton-proton collisions with large underlying event
6 pages, 4 figures
J. Phys. G: Nucl. Part. Phys. 48 (2021) 015007
10.1088/1361-6471/abc5fb
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This paper presents the production of charged particles associated with high-$p_{\rm T}$ trigger particles ($8<p_{\rm T}^{\rm trig.}<15$ GeV/$c$) in proton-proton collisions at $\sqrt{s}=5.02$ TeV simulated with PYTHIA 8.244. The study is performed as a function of the relative transverse activity classifier, $R_{\rm...
[ { "created": "Wed, 8 Jul 2020 02:24:38 GMT", "version": "v1" }, { "created": "Wed, 9 Dec 2020 14:04:21 GMT", "version": "v2" } ]
2020-12-10
[ [ "Bencédi", "Gyula", "" ], [ "Ortiz", "Antonio", "" ], [ "Tripathy", "Sushanta", "" ] ]
This paper presents the production of charged particles associated with high-$p_{\rm T}$ trigger particles ($8<p_{\rm T}^{\rm trig.}<15$ GeV/$c$) in proton-proton collisions at $\sqrt{s}=5.02$ TeV simulated with PYTHIA 8.244. The study is performed as a function of the relative transverse activity classifier, $R_{\rm T...
hep-ph/9804427
Sandip Pakvasa
S. Pakvasa (University of Hawaii at Manoa)
Some Phenomenological Aspects of Neutrino Physics
8 pages, no figures, Presented at the Pacific Particle Physics Phenomenology Workshop, APCTP, Seoul, Korea, Nov. 1997. To appear in the Proceedings
null
null
UH-511-884-98
hep-ph hep-ex
null
I concentrate on two topics. One is techniques to distinguish amongst various oscillation scenarios from atmospheric neutrino data; and the other is the Borexino solar neutrino detector and its capabilities.
[ { "created": "Tue, 28 Apr 1998 01:23:31 GMT", "version": "v1" } ]
2007-05-23
[ [ "Pakvasa", "S.", "", "University of Hawaii at Manoa" ] ]
I concentrate on two topics. One is techniques to distinguish amongst various oscillation scenarios from atmospheric neutrino data; and the other is the Borexino solar neutrino detector and its capabilities.
hep-ph/9309253
Ngee-Pong Chang
Ngee-Pong Chang
Braaten-Pisarski Action, Disoriented Chiral Condensate, and Chiral Symmetry Non-Restoration
(Contributed talk at the 3rd Thermal Fields Workshop held Aug 16 - 27, 1993 at Banff, Canada. ) 6 pages, LaTeX, CCNY-HEP-93-15
null
null
null
hep-ph
null
The QCD effective action at high T shows a manifest global chiral symmetry. And calculations show that the order parameter \psibarpsi vanishes above T_c. It has been popular to refer to this T_c as chiral symmetry restoration temperature because it fits into our prejudice that chiral symmetry is like an `ordered' sta...
[ { "created": "Fri, 10 Sep 1993 12:52:30 GMT", "version": "v1" } ]
2007-05-23
[ [ "Chang", "Ngee-Pong", "" ] ]
The QCD effective action at high T shows a manifest global chiral symmetry. And calculations show that the order parameter \psibarpsi vanishes above T_c. It has been popular to refer to this T_c as chiral symmetry restoration temperature because it fits into our prejudice that chiral symmetry is like an `ordered' state...
hep-ph/0506266
Ting-Wai Chiu
Ting-Wai Chiu, Tung-Han Hsieh, Jon-Yu Lee, Pei-Hua Liu, Hsiu-Ju Chang
Pseudoscalar Decay Constants $ f_{D} $ and $ f_{D_s} $ in Lattice QCD with Exact Chiral Symmetry
14 pages, 6 eps figures
Phys.Lett.B624:31-38,2005
10.1016/j.physletb.2005.08.009
NTUTH-05-505C
hep-ph hep-ex hep-lat
null
We determine the masses and decay constants of pseudoscalar mesons $ D $, $ D_s $, and $ K $ in quenched lattice QCD with exact chiral symmetry. For 100 gauge configurations generated with single-plaquette action at $ \beta = 6.1 $ on the $ 20^3 \times 40 $ lattice, we compute point-to-point quark propagators for 30 ...
[ { "created": "Sun, 26 Jun 2005 12:07:04 GMT", "version": "v1" } ]
2011-02-16
[ [ "Chiu", "Ting-Wai", "" ], [ "Hsieh", "Tung-Han", "" ], [ "Lee", "Jon-Yu", "" ], [ "Liu", "Pei-Hua", "" ], [ "Chang", "Hsiu-Ju", "" ] ]
We determine the masses and decay constants of pseudoscalar mesons $ D $, $ D_s $, and $ K $ in quenched lattice QCD with exact chiral symmetry. For 100 gauge configurations generated with single-plaquette action at $ \beta = 6.1 $ on the $ 20^3 \times 40 $ lattice, we compute point-to-point quark propagators for 30 qu...
0808.1729
Ernest Ma
Ernest Ma (UC Riverside)
Dark Scalar Doublets and Neutrino Tribimaximal Mixing from A_4 Symmetry
8 pages, 2 figures, 1 reference and 1 paragraph added
Phys.Lett.B671:366-368,2009
10.1016/j.physletb.2008.12.038
UCRHEP-T453 (Aug 2008)
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the context of A_4 symmetry, neutrino tribimaximal mixing is achieved through the breaking of A_4 to Z_3 (Z_2) in the charged-lepton (neutrino) sector respectively. The implied vacuum misalignment of the (1,1,1) and (1,0,0) directions in A_4 space is a difficult technical problem, and cannot be treated without man...
[ { "created": "Wed, 13 Aug 2008 16:47:07 GMT", "version": "v1" }, { "created": "Mon, 18 Aug 2008 21:56:27 GMT", "version": "v2" } ]
2009-02-02
[ [ "Ma", "Ernest", "", "UC Riverside" ] ]
In the context of A_4 symmetry, neutrino tribimaximal mixing is achieved through the breaking of A_4 to Z_3 (Z_2) in the charged-lepton (neutrino) sector respectively. The implied vacuum misalignment of the (1,1,1) and (1,0,0) directions in A_4 space is a difficult technical problem, and cannot be treated without many ...
2406.18673
Jose Jorge Medina Serna
Alejandro Ayala, Santiago Bernal-Langarica, Jorge Jaber-Urquiza and Jos\'e Jorge Medina-Serna
Two-gluon one-photon vertex in a magnetic field and its explicit one-loop approximation in the intermediate field strength regime
Key words: magnetic fields, heavy-ion collisions, photon puzzle, gluon-photon vertex
null
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We find the general structure for the two-gluon one-photon vertex in the presence of a constant magnetic field. We show that, when accounting for the symmetries satisfied by the strong and electromagnetic interactions under parity, charge conjugation and gluon interchange, and for gluons and photons on mass-shell, th...
[ { "created": "Wed, 26 Jun 2024 18:21:08 GMT", "version": "v1" } ]
2024-06-28
[ [ "Ayala", "Alejandro", "" ], [ "Bernal-Langarica", "Santiago", "" ], [ "Jaber-Urquiza", "Jorge", "" ], [ "Medina-Serna", "José Jorge", "" ] ]
We find the general structure for the two-gluon one-photon vertex in the presence of a constant magnetic field. We show that, when accounting for the symmetries satisfied by the strong and electromagnetic interactions under parity, charge conjugation and gluon interchange, and for gluons and photons on mass-shell, ther...
hep-ph/0202140
Rudolph C. Hwa
Rudolph C. Hwa and C.B. Yang
Parton Distributions in the Valon Model
9 pages + 9 figures in eps
Phys.Rev. C66 (2002) 025204
10.1103/PhysRevC.66.025204
OITS-709
hep-ph
null
The parton distribution functions determined by CTEQ at low $Q^2$ are used as inputs to test the validity of the valon model. The valon distributions in a nucleon are first found to be nearly $Q$ independent. The parton distribution in a valon are shown to be consistent with being universal, independent of the valon ...
[ { "created": "Fri, 15 Feb 2002 00:31:57 GMT", "version": "v1" } ]
2009-11-07
[ [ "Hwa", "Rudolph C.", "" ], [ "Yang", "C. B.", "" ] ]
The parton distribution functions determined by CTEQ at low $Q^2$ are used as inputs to test the validity of the valon model. The valon distributions in a nucleon are first found to be nearly $Q$ independent. The parton distribution in a valon are shown to be consistent with being universal, independent of the valon ty...
1208.5301
Jungil Lee
Geoffrey T. Bodwin (Argonne), U-Rae Kim, Jungil Lee (Korea U.)
Higher-order relativistic corrections to gluon fragmentation into spin-triplet S-wave quarkonium
41 pages, 8 figures, 3 tables, minor corrections, version published in JHEP. Eq. (6.3) corrected. Incorporates erratum JHEP 07 (2023) 170 to JHEP 11 (2012) 020
JHEP 11 (2012) 020
10.1007/JHEP11(2012)020
ANL-HEP-PR-12-65
hep-ph
http://creativecommons.org/licenses/by-sa/4.0/
We compute the relative-order-v^4 contribution to gluon fragmentation into quarkonium in the 3S1 color-singlet channel, using the nonrelativistic QCD (NRQCD) factorization approach. The QCD fragmentation process contains infrared divergences that produce single and double poles in epsilon in 4-2epsilon dimensions. We...
[ { "created": "Mon, 27 Aug 2012 06:47:34 GMT", "version": "v1" }, { "created": "Fri, 9 Nov 2012 05:19:12 GMT", "version": "v2" }, { "created": "Mon, 24 Jul 2023 07:53:13 GMT", "version": "v3" } ]
2023-07-25
[ [ "Bodwin", "Geoffrey T.", "", "Argonne" ], [ "Kim", "U-Rae", "", "Korea U." ], [ "Lee", "Jungil", "", "Korea U." ] ]
We compute the relative-order-v^4 contribution to gluon fragmentation into quarkonium in the 3S1 color-singlet channel, using the nonrelativistic QCD (NRQCD) factorization approach. The QCD fragmentation process contains infrared divergences that produce single and double poles in epsilon in 4-2epsilon dimensions. We d...
hep-ph/0509313
Thomas Mehen
Sean Fleming (Arizona U.) Thomas Mehen (Duke U. & Jefferson Lab)
Doubly Heavy Baryons, Heavy Quark-DiQuark Symmetry and NRQCD
23 pages, 7 .ps figures
Phys.Rev.D73:034502,2006
10.1103/PhysRevD.73.034502
null
hep-ph
null
In the heavy quark limit, properties of heavy mesons and doubly heavy baryons are related by heavy quark-diquark symmetry. This problem is reanalyzed in the framework of Non-Relativistic QCD (NRQCD). We introduce a novel method for deriving Potential NRQCD (pNRQCD) Lagrangians for composite fields from vNRQCD, which ...
[ { "created": "Tue, 27 Sep 2005 19:39:27 GMT", "version": "v1" } ]
2014-11-18
[ [ "Fleming", "Sean", "", "Arizona U." ], [ "Mehen", "Thomas", "", "Duke U. & Jefferson Lab" ] ]
In the heavy quark limit, properties of heavy mesons and doubly heavy baryons are related by heavy quark-diquark symmetry. This problem is reanalyzed in the framework of Non-Relativistic QCD (NRQCD). We introduce a novel method for deriving Potential NRQCD (pNRQCD) Lagrangians for composite fields from vNRQCD, which co...
1911.13043
Marcos Rodriguez Cardoso
M. C. Rodriguez
The Minimal Supersymmetric Standard Model (MSSM) and General Singlet Extensions of the MSSM (GSEMSSM), a short review
54 pages, 22 figures, 8 tables. arXiv admin note: text overlap with arXiv:hep-ph/9903257, arXiv:hep-ph/0606288, arXiv:1205.5081, arXiv:hep-ph/9611409, arXiv:hep-ph/0012288 by other authors
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this lectures, we give a review about the Minimal Supersymmetric Standard Model (MSSM) and the General Singlet Extensions of the MSSM (GSEMSSM). We, first introduce the minimal set of fields to built both models. Then we introduce their superfields and using them we build the lagrangian of those models in the supe...
[ { "created": "Fri, 29 Nov 2019 10:36:53 GMT", "version": "v1" } ]
2019-12-02
[ [ "Rodriguez", "M. C.", "" ] ]
In this lectures, we give a review about the Minimal Supersymmetric Standard Model (MSSM) and the General Singlet Extensions of the MSSM (GSEMSSM). We, first introduce the minimal set of fields to built both models. Then we introduce their superfields and using them we build the lagrangian of those models in the supers...
1504.07966
Kunio Kaneta
Kunio Kaneta
Probing composite Higgs models by measuring phase shifts at LHC
4 pages, 5 figures, proceedings of the 2nd Toyama International Workshop on Higgs as a Probe of New Physics (HPNP 2015), February 11-15, 2015
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Composite Higgs models are an attractive scenario, where the discovered Higgs boson is regarded as a Nambu-Goldstone boson associated with spontaneous breakdown of a global symmetry of more fundamental theory. This class of models predicts violation of perturbative unitarity at high energies, and new resonances are e...
[ { "created": "Wed, 29 Apr 2015 18:59:53 GMT", "version": "v1" } ]
2015-04-30
[ [ "Kaneta", "Kunio", "" ] ]
Composite Higgs models are an attractive scenario, where the discovered Higgs boson is regarded as a Nambu-Goldstone boson associated with spontaneous breakdown of a global symmetry of more fundamental theory. This class of models predicts violation of perturbative unitarity at high energies, and new resonances are exp...
1409.8115
Diego Cogollo
D. Cogollo
Muon Anomalous Magnetic Moment in a $SU(4) \otimes U(1)_N$ Model
null
International Journal of Modern Physics A Vol. 30 (2015) 1550038
10.1142/S0217751X15500384
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the muon anomalous magnetic moment in an electroweak model based on the gauge symmetry $SU(4)_L\otimes U(1)_N$, which has right-handed neutrinos in its spectrum, and no flavor changing neutral currents at tree level. We discuss relevant collider and electroweak constraints on the model, and derive the most s...
[ { "created": "Mon, 29 Sep 2014 13:29:06 GMT", "version": "v1" }, { "created": "Wed, 1 Oct 2014 16:44:12 GMT", "version": "v2" }, { "created": "Tue, 17 Mar 2015 03:20:01 GMT", "version": "v3" } ]
2015-03-18
[ [ "Cogollo", "D.", "" ] ]
We study the muon anomalous magnetic moment in an electroweak model based on the gauge symmetry $SU(4)_L\otimes U(1)_N$, which has right-handed neutrinos in its spectrum, and no flavor changing neutral currents at tree level. We discuss relevant collider and electroweak constraints on the model, and derive the most str...
1912.10894
Valery Lyubovitskij
Thomas Gutsche, Valery E. Lyubovitskij
Strong decays of the hadronic molecule $\Omega^\ast (2012)$
null
J. Phys. G 48, 025001 (2020)
10.1088/1361-6471/abcb9f
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Strong two- and three-body decays of the new excited hyperon $\Omega^*(2012)$ are discussed in the hadronic molecular approach. The $\Omega^*(2012)$ state is considered to contain the mixed $\Xi \bar K$ and $\Omega \eta$ hadronic components. In our calculations we use a phenomenological hadronic Lagrangian describing...
[ { "created": "Mon, 23 Dec 2019 14:55:08 GMT", "version": "v1" }, { "created": "Wed, 23 Dec 2020 08:05:05 GMT", "version": "v2" } ]
2020-12-24
[ [ "Gutsche", "Thomas", "" ], [ "Lyubovitskij", "Valery E.", "" ] ]
Strong two- and three-body decays of the new excited hyperon $\Omega^*(2012)$ are discussed in the hadronic molecular approach. The $\Omega^*(2012)$ state is considered to contain the mixed $\Xi \bar K$ and $\Omega \eta$ hadronic components. In our calculations we use a phenomenological hadronic Lagrangian describing t...
hep-ph/0608287
Z. Merebashvili
J. G. Korner, Z. Merebashvili, and M. Rogal
Next-to-next-to-leading order ${\cal O}(\alpha^2\alpha_s^2)$ results for top quark pair production in photon--photon collisions: The one-loop squared contributions
11 pages, Revtex, slight change in title and abstract, one paragraph and reference added, matches published version
Phys.Rev.D74:094006,2006
10.1103/PhysRevD.74.094006
null
hep-ph
null
We calculate the one-loop squared contributions to the next-to-next-to-leading order ${\cal O}(\alpha^2\alpha_s^2)$ radiative QCD corrections for the production of heavy quark pairs in the collisions of unpolarized on--shell photons. In particular, we present analytical results for the squared matrix elements that co...
[ { "created": "Sat, 26 Aug 2006 14:14:42 GMT", "version": "v1" }, { "created": "Sat, 4 Nov 2006 07:35:15 GMT", "version": "v2" } ]
2008-11-26
[ [ "Korner", "J. G.", "" ], [ "Merebashvili", "Z.", "" ], [ "Rogal", "M.", "" ] ]
We calculate the one-loop squared contributions to the next-to-next-to-leading order ${\cal O}(\alpha^2\alpha_s^2)$ radiative QCD corrections for the production of heavy quark pairs in the collisions of unpolarized on--shell photons. In particular, we present analytical results for the squared matrix elements that corr...
hep-ph/0309324
Felipe J. Llanes-Estrada
Antonio Dobado and Felipe J. Llanes-Estrada
The Viscosity of Meson Matter
null
Phys.Rev. D69 (2004) 116004
10.1103/PhysRevD.69.116004
null
hep-ph
null
We report a calculation of the shear viscosity in a relativistic multicomponent meson gas as a function of temperature and chemical potentials. We approximately solve the Uehling-Uhlenbeck transport equation of kinetic theory, appropriate for a boson gas, with relativistic kinematics. Since at low temperatures the ga...
[ { "created": "Mon, 29 Sep 2003 16:14:15 GMT", "version": "v1" } ]
2009-11-10
[ [ "Dobado", "Antonio", "" ], [ "Llanes-Estrada", "Felipe J.", "" ] ]
We report a calculation of the shear viscosity in a relativistic multicomponent meson gas as a function of temperature and chemical potentials. We approximately solve the Uehling-Uhlenbeck transport equation of kinetic theory, appropriate for a boson gas, with relativistic kinematics. Since at low temperatures the gas ...
hep-ph/9206254
Stephen Naculich
S. G. Naculich and C.-P. Yuan
Can the Electroweak Symmetry-breaking Sector Be Hidden?
10 pages, phyzzx, JHU-TIPAC-920017
Phys.Lett.B293:395-399,1992
10.1016/0370-2693(92)90902-G
null
hep-ph
null
In a recent paper, Chivukula and Golden claimed that the electroweak symmetry--breaking sector could be hidden if there were many inelastic channels in the longitudinal $WW$ scattering process. They presented a model in which the $W$'s couple to pseudo--Goldstone bosons, which may be difficult to detect experimentall...
[ { "created": "Fri, 26 Jun 1992 17:29:00 GMT", "version": "v1" } ]
2008-11-26
[ [ "Naculich", "S. G.", "" ], [ "Yuan", "C. -P.", "" ] ]
In a recent paper, Chivukula and Golden claimed that the electroweak symmetry--breaking sector could be hidden if there were many inelastic channels in the longitudinal $WW$ scattering process. They presented a model in which the $W$'s couple to pseudo--Goldstone bosons, which may be difficult to detect experimentally....
1811.12302
Andreas Schmitt
Alexander Haber and Andreas Schmitt
Multi-winding flux tubes in CFL quark matter
12 pages, 3 figures, proceedings contribution to "XIIIth Quark Confinement and the Hadron Spectrum", 31 July - 6 August 2018, Maynooth University, Ireland
null
null
null
hep-ph astro-ph.HE nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Color-flavor locked quark matter can be described as a three-component superconductor and thus shows unconventional behavior in the transition regime from type-I to type-II superconductivity. We discuss this behavior by studying magnetic line defects in a Ginzburg-Landau approach, taking into account all possible val...
[ { "created": "Thu, 29 Nov 2018 16:51:59 GMT", "version": "v1" } ]
2018-11-30
[ [ "Haber", "Alexander", "" ], [ "Schmitt", "Andreas", "" ] ]
Color-flavor locked quark matter can be described as a three-component superconductor and thus shows unconventional behavior in the transition regime from type-I to type-II superconductivity. We discuss this behavior by studying magnetic line defects in a Ginzburg-Landau approach, taking into account all possible value...
1207.6968
Jordy Vries de
J. de Vries
Parity- and Time-Reversal-Violating Moments of Light Nuclei
8 pages, contribution to the proceedings of the 5th International Symposium on Symmetries in Subatomic Physics (SSP2012), June 18-22, 2012, Groningen, The Netherlands
Hyperfine Interact. 214, 79-86, 2013
10.1007/s10751-013-0807-8
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
I present the calculation of parity- and time-reversal-violating moments of the nucleon and light nuclei, originating from the QCD theta term and effective dimension-six operators. By applying chiral effective field theory these calculations are performed in a unified framework. I argue that measurements of a few lig...
[ { "created": "Mon, 30 Jul 2012 15:30:56 GMT", "version": "v1" }, { "created": "Tue, 31 Jul 2012 08:32:59 GMT", "version": "v2" }, { "created": "Mon, 25 Mar 2013 08:18:40 GMT", "version": "v3" } ]
2013-03-26
[ [ "de Vries", "J.", "" ] ]
I present the calculation of parity- and time-reversal-violating moments of the nucleon and light nuclei, originating from the QCD theta term and effective dimension-six operators. By applying chiral effective field theory these calculations are performed in a unified framework. I argue that measurements of a few light...
hep-ph/0206120
Sergio Daniel Grillo
S. Grillo and H. Montani
Integrable mixing of A_{n-1} type vertex models
REVTeX 28 pages. Here we complete the proof of integrability for mixed vertex models as defined in the first version
J.Math.Phys. 45 (2004) 2073-2089
10.1063/1.1704846
null
hep-ph hep-th
null
Given a family of monodromy matrices {T_u; u=0,1,...,K-1} corresponding to integrable anisotropic vertex models of A_{(n_u)-1}-type, we build up a related mixed vertex model by means of glueing the lattices on which they are defined, in such a way that integrability property is preserved. Algebraically, the glueing p...
[ { "created": "Thu, 13 Jun 2002 17:34:08 GMT", "version": "v1" }, { "created": "Fri, 30 Aug 2002 21:24:10 GMT", "version": "v2" }, { "created": "Fri, 15 Nov 2002 14:24:46 GMT", "version": "v3" } ]
2009-11-07
[ [ "Grillo", "S.", "" ], [ "Montani", "H.", "" ] ]
Given a family of monodromy matrices {T_u; u=0,1,...,K-1} corresponding to integrable anisotropic vertex models of A_{(n_u)-1}-type, we build up a related mixed vertex model by means of glueing the lattices on which they are defined, in such a way that integrability property is preserved. Algebraically, the glueing pro...
1512.08443
Matthias Berwein
Matthias Berwein, Nora Brambilla, Peter Petreczky, Antonio Vairo
The Polyakov loop at next-to-next-to leading order
65 pages, 13 figures
Phys. Rev. D 93, 034010 (2016)
10.1103/PhysRevD.93.034010
TUM-EFT 67/15
hep-ph hep-lat hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the next-to-next-to-leading correction to the expectation value of the Polyakov loop or equivalently to the free energy of a static charge. This correction is of order $g^5$. We show that up to this order the free energy of the static charge is proportional to the quadratic Casimir operator of the corres...
[ { "created": "Mon, 28 Dec 2015 16:20:33 GMT", "version": "v1" }, { "created": "Wed, 30 Dec 2015 15:13:39 GMT", "version": "v2" } ]
2016-02-17
[ [ "Berwein", "Matthias", "" ], [ "Brambilla", "Nora", "" ], [ "Petreczky", "Peter", "" ], [ "Vairo", "Antonio", "" ] ]
We calculate the next-to-next-to-leading correction to the expectation value of the Polyakov loop or equivalently to the free energy of a static charge. This correction is of order $g^5$. We show that up to this order the free energy of the static charge is proportional to the quadratic Casimir operator of the correspo...
hep-ph/9603443
Antonio Lanza
E.Kh. Akhmedov, A. Lanza, S.T. Petcov and D.W. Sciama
Resonant neutrino spin-flavor precession and supernova shock revival
16 pages, latex, 2 figures. added few references
Phys.Rev.D55:515-522,1997
10.1103/PhysRevD.55.515
SISSA 40/96/A-EP, TUM-HEP-239/96, SFB-375/83
hep-ph astro-ph
null
A new mechanism of supernova shock revival is proposed, which involves resonant spin--flavor precession of neutrinos with a transition magnetic moment in the magnetic field of the supernova. The mechanism can be operative in supernovae for transition magnetic moments as small as $10^{-14}\mu_B$ provided the neutrino ...
[ { "created": "Sat, 30 Mar 1996 11:11:52 GMT", "version": "v1" }, { "created": "Tue, 16 Apr 1996 13:26:06 GMT", "version": "v2" } ]
2008-11-26
[ [ "Akhmedov", "E. Kh.", "" ], [ "Lanza", "A.", "" ], [ "Petcov", "S. T.", "" ], [ "Sciama", "D. W.", "" ] ]
A new mechanism of supernova shock revival is proposed, which involves resonant spin--flavor precession of neutrinos with a transition magnetic moment in the magnetic field of the supernova. The mechanism can be operative in supernovae for transition magnetic moments as small as $10^{-14}\mu_B$ provided the neutrino ma...
hep-ph/9805479
Elisabetta Sassaroli
E. Sassaroli, Y. N. Srivastava, J. Swain, and A. Widom
The Dynamical and Static Casimir Effects and the Thermodynamic Instability
12 pages, Tex file, no figures. Talk presented by E. Sassaroli at the Casimir effect topical group meeting ITAMP, Smithsonian-Harvard Center for Astrophysics, March 1998
null
null
null
hep-ph
null
The dynamical Casimir effect for the ideal case of two perfectly conducting non-charged parallel plates, is discussed using the zero-point energy summation method to the first order in perturbation theory. We show that it is possible to create photon radiation when the two plates are modulated rapidly in time. Moreov...
[ { "created": "Wed, 27 May 1998 14:57:17 GMT", "version": "v1" } ]
2007-05-23
[ [ "Sassaroli", "E.", "" ], [ "Srivastava", "Y. N.", "" ], [ "Swain", "J.", "" ], [ "Widom", "A.", "" ] ]
The dynamical Casimir effect for the ideal case of two perfectly conducting non-charged parallel plates, is discussed using the zero-point energy summation method to the first order in perturbation theory. We show that it is possible to create photon radiation when the two plates are modulated rapidly in time. Moreover...
1711.10831
Nasuf Sonmez PhD
Nasuf Sonmez
Production of neutral Higgs bosons associated with Z-boson and photon in 2HDM at future lepton colliders
10 pages, 6 figures
null
null
17-FEN-054
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Inspired by precision tests of the Standard Model in future lepton colliders, the numerical analysis of the following scattering processes, $e^+e^- \rightarrow Z h^0\gamma$ and $e^+e^- \rightarrow Z H^0 \gamma$, are carried at the tree level including all possible diagrams in the two-Higgs-doublet model (2HDM). This ...
[ { "created": "Wed, 29 Nov 2017 13:08:55 GMT", "version": "v1" }, { "created": "Thu, 24 Jan 2019 13:58:24 GMT", "version": "v2" }, { "created": "Thu, 31 Jan 2019 13:09:47 GMT", "version": "v3" }, { "created": "Wed, 20 Feb 2019 12:33:20 GMT", "version": "v4" }, { "c...
2019-06-21
[ [ "Sonmez", "Nasuf", "" ] ]
Inspired by precision tests of the Standard Model in future lepton colliders, the numerical analysis of the following scattering processes, $e^+e^- \rightarrow Z h^0\gamma$ and $e^+e^- \rightarrow Z H^0 \gamma$, are carried at the tree level including all possible diagrams in the two-Higgs-doublet model (2HDM). This mo...
hep-ph/9511389
Erhan Iltan
T. M. Aliev, D. A. Demir, E. Iltan, N. K. Pak
Single Leptoquark Production at TeV Energy $\gamma p$ Colliders
14 pages, 4 figures, LaTeX formatted
null
10.1103/PhysRevD.54.4263
METU-PHYS-HEP-95-14, ICTP REPORT-95
hep-ph
null
The resolved and direct photon contributions to the single leptoquark (L) production process $\gamma p\rightarrow L e$ are analysed for both scalar (S) and vector (V) leptoquarks in detail. It is shown that resolved photon contribution dominates for $M_{L}\leq 300 GeV$. For $M_{V}\geq 1 TeV$ and $M_{S}\geq 0.5 TeV$ c...
[ { "created": "Wed, 22 Nov 1995 09:48:07 GMT", "version": "v1" }, { "created": "Tue, 28 Nov 1995 11:27:01 GMT", "version": "v2" } ]
2009-10-28
[ [ "Aliev", "T. M.", "" ], [ "Demir", "D. A.", "" ], [ "Iltan", "E.", "" ], [ "Pak", "N. K.", "" ] ]
The resolved and direct photon contributions to the single leptoquark (L) production process $\gamma p\rightarrow L e$ are analysed for both scalar (S) and vector (V) leptoquarks in detail. It is shown that resolved photon contribution dominates for $M_{L}\leq 300 GeV$. For $M_{V}\geq 1 TeV$ and $M_{S}\geq 0.5 TeV$ cro...
hep-ph/0404189
Vladimir Sauli
V. Sauli
Solving the Bethe-Salpeter equation for fermion-antifermion pseudoscalar bound state in Minkowski space
19 pages, 1 figure
null
null
null
hep-ph
null
The new method of solution of the Bethe-Salpeter equation for quark-antiquark pseudoscalar bound state is proposed. With the help of integral representation the results are directly obtained in Minkowski space. Dressing of Greens functions is naturally considered providing thus the correct inclusion of the running co...
[ { "created": "Thu, 22 Apr 2004 06:59:12 GMT", "version": "v1" }, { "created": "Thu, 22 Feb 2007 16:48:44 GMT", "version": "v2" } ]
2007-05-23
[ [ "Sauli", "V.", "" ] ]
The new method of solution of the Bethe-Salpeter equation for quark-antiquark pseudoscalar bound state is proposed. With the help of integral representation the results are directly obtained in Minkowski space. Dressing of Greens functions is naturally considered providing thus the correct inclusion of the running coup...
2007.15016
Matthew Kirk
Joe Davighi, Matthew Kirk, Marco Nardecchia
Anomalies and accidental symmetries: charging the scalar leptoquark under $L_\mu$-$L_\tau$
32 pages, 6 figures. v2: journal version - corrected diagrams in fig 6, improved discussion of baryon number violation and added brief discussion of neutrino mass generation, references added
JHEP 12 (2020) 111
10.1007/JHEP12(2020)111
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
While the $S_3$ scalar leptoquark presents a possible tree-level explanation of the $b \to s \ell \ell$ flavour anomalies, it suffers from two conceptual problems which are often disregarded by model-builders. Firstly, the quantum numbers of the $S_3$ allow for a renormalisable diquark operator that would trigger rap...
[ { "created": "Wed, 29 Jul 2020 18:00:03 GMT", "version": "v1" }, { "created": "Mon, 4 Jan 2021 11:47:57 GMT", "version": "v2" } ]
2021-01-05
[ [ "Davighi", "Joe", "" ], [ "Kirk", "Matthew", "" ], [ "Nardecchia", "Marco", "" ] ]
While the $S_3$ scalar leptoquark presents a possible tree-level explanation of the $b \to s \ell \ell$ flavour anomalies, it suffers from two conceptual problems which are often disregarded by model-builders. Firstly, the quantum numbers of the $S_3$ allow for a renormalisable diquark operator that would trigger rapid...
1808.06517
Jiro Hashiba Ph.D.
Jiro Hashiba
Dark Energy from Eternal Pair-production of Fermions
9 pages, 4 figures; v4: section II significantly revised, section VI added, and minor corrections
null
null
null
hep-ph gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study a toy model in which Majorana or Dirac fermions behave as the source for a small vacuum energy in the present Universe. In the model, a self-interacting scalar boson coupled with fermions induces attractive and repulsive interactions between the fermions simultaneously. These interactions allow for the exist...
[ { "created": "Mon, 20 Aug 2018 15:36:31 GMT", "version": "v1" }, { "created": "Mon, 17 Sep 2018 13:33:17 GMT", "version": "v2" }, { "created": "Mon, 29 Oct 2018 13:21:10 GMT", "version": "v3" }, { "created": "Mon, 7 Jan 2019 15:27:51 GMT", "version": "v4" } ]
2019-01-08
[ [ "Hashiba", "Jiro", "" ] ]
We study a toy model in which Majorana or Dirac fermions behave as the source for a small vacuum energy in the present Universe. In the model, a self-interacting scalar boson coupled with fermions induces attractive and repulsive interactions between the fermions simultaneously. These interactions allow for the existen...
hep-ph/0409080
Alexander Khodjamirian
Christine Bruch, Alexander Khodjamirian, Johann H.Kuhn
Modeling the Pion and Kaon Form Factors in the Timelike Region
31 pages, 7 figures,latex, one reference changed, version to appear in Eur.Phys.J C
Eur.Phys.J. C39 (2005) 41-54
10.1140/epjc/s2004-02064-3
TTP04-20, SI-HEP-2004-09
hep-ph
null
New, accurate measurements of the pion and kaon electromagnetic form factors are expected in the near future from experiments at electron-positron colliders,using the radiative return method. We construct a model for the timelike pion electromagnetic form factor, that is valid also at momentum transfers far above the...
[ { "created": "Tue, 7 Sep 2004 18:49:41 GMT", "version": "v1" }, { "created": "Sat, 18 Dec 2004 16:25:20 GMT", "version": "v2" } ]
2015-06-25
[ [ "Bruch", "Christine", "" ], [ "Khodjamirian", "Alexander", "" ], [ "Kuhn", "Johann H.", "" ] ]
New, accurate measurements of the pion and kaon electromagnetic form factors are expected in the near future from experiments at electron-positron colliders,using the radiative return method. We construct a model for the timelike pion electromagnetic form factor, that is valid also at momentum transfers far above the $...
1806.06997
Genaro Toledo
J. E. Chavez-Saab and Genaro Toledo
Closing the Gap on $R_{D^*}$ by including longitudinal effects
Table 1 updated. After publication we found a bug in the transcription code for the numerical integration. Using the corrected values, the results on $R_{D\pi}$ are consistent with $R_{D^*}$ at the current precision. This modifies our previous finding that lead us to a different conclusion
Phys. Rev. D 98, 056014 (2018)
10.1103/PhysRevD.98.056014
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Measurements of the $R_{D^*}\equiv\mathrm{Br}(B\rightarrow \tau\nu D^*)/\mathrm{Br}(B\rightarrow e\nu D^*)$ parameter remain in tension with the standard model prediction, despite recent results helping to close the gap. The standard model prediction it is compared with considers the $D^*$ as an external particle, ev...
[ { "created": "Tue, 19 Jun 2018 01:24:11 GMT", "version": "v1" }, { "created": "Tue, 11 Sep 2018 22:36:44 GMT", "version": "v2" }, { "created": "Wed, 8 May 2019 23:16:04 GMT", "version": "v3" } ]
2019-05-10
[ [ "Chavez-Saab", "J. E.", "" ], [ "Toledo", "Genaro", "" ] ]
Measurements of the $R_{D^*}\equiv\mathrm{Br}(B\rightarrow \tau\nu D^*)/\mathrm{Br}(B\rightarrow e\nu D^*)$ parameter remain in tension with the standard model prediction, despite recent results helping to close the gap. The standard model prediction it is compared with considers the $D^*$ as an external particle, even...
2401.14759
Hao-Song Li
Hao-Song Li
Ab initio calculation of molecular pentaquark magnetic moments in heavy pentaquark chiral perturbation theory
null
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We propose a new heavy pentaquark chiral perturbation theory for the recently observed hidden-charm pentaquark states by LHCb Collaboration. With the ab initio constructed chiral Lagrangians, we present a parameter-free calculation of the octet molecular pentaquark magnetic moments up to one-loop level. We improve th...
[ { "created": "Fri, 26 Jan 2024 10:34:24 GMT", "version": "v1" } ]
2024-01-29
[ [ "Li", "Hao-Song", "" ] ]
We propose a new heavy pentaquark chiral perturbation theory for the recently observed hidden-charm pentaquark states by LHCb Collaboration. With the ab initio constructed chiral Lagrangians, we present a parameter-free calculation of the octet molecular pentaquark magnetic moments up to one-loop level. We improve the ...
2201.10495
Juan M. Torres-Rincon
Juan M. Torres-Rincon and Derek Teaney
Kinetics of hydrodynamic pions in chiral perturbation theory
30.5 pages, 7 figures. Generalization to arbitrary number of flavors, by considering pion-pion scattering in SU(N) instead of SU(2). Explanations and extra references added. Accepted for publication in Physical Review D journal
null
10.1103/PhysRevD.106.056012
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We determine the kinetic coefficients of ultrasoft pions using chiral perturbation theory at finite temperature close to the chiral limit. This is used to compute the axial charge diffusion and damping coefficients in the hydrodynamic effective theory for these pion waves. We show that to provide a leading order answ...
[ { "created": "Tue, 25 Jan 2022 17:38:42 GMT", "version": "v1" }, { "created": "Tue, 13 Sep 2022 16:43:45 GMT", "version": "v2" } ]
2022-10-05
[ [ "Torres-Rincon", "Juan M.", "" ], [ "Teaney", "Derek", "" ] ]
We determine the kinetic coefficients of ultrasoft pions using chiral perturbation theory at finite temperature close to the chiral limit. This is used to compute the axial charge diffusion and damping coefficients in the hydrodynamic effective theory for these pion waves. We show that to provide a leading order answer...
1509.07666
Gavin Salam
Gavin P. Salam
Summary of the XXVIIth Rencontres de Blois: Particle Physics and Cosmology
22 pages, 24 figures, presented at XXVIIth Rencontres de Blois, France, 31 May - 5 June 2015
null
null
CERN-PH-TH-2015-234
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This writeup summarises some of the highlights from the 2015 Rencontres de Blois, with a compression ratio of about 100:1 relative to the original presentations.
[ { "created": "Fri, 25 Sep 2015 10:31:22 GMT", "version": "v1" } ]
2015-09-28
[ [ "Salam", "Gavin P.", "" ] ]
This writeup summarises some of the highlights from the 2015 Rencontres de Blois, with a compression ratio of about 100:1 relative to the original presentations.
0706.4212
Andrej El
A. El, C. Greiner, Z. Xu
Shear Viscosity to Entropy within a Parton Cascade
2 pages, 4 Figures. Contributed by C.Greiner by Workshop on Heavy Ion Collisions at the LHC: Last Call for Predictions, Geneva, Switzerland, 14 May-8 Jun 2007
null
null
null
hep-ph
null
The shear viscosity is calculated by means of the perturbative kinetic partonic cascade BAMPS with CGC initial conditons for various saturation momentum scale Q_s. eta/s ~ 0.15 stays approximately constant when going from RHIC to LHC.
[ { "created": "Thu, 28 Jun 2007 12:30:50 GMT", "version": "v1" } ]
2007-06-29
[ [ "El", "A.", "" ], [ "Greiner", "C.", "" ], [ "Xu", "Z.", "" ] ]
The shear viscosity is calculated by means of the perturbative kinetic partonic cascade BAMPS with CGC initial conditons for various saturation momentum scale Q_s. eta/s ~ 0.15 stays approximately constant when going from RHIC to LHC.
1008.2202
Michael Spannowsky
Christoph Hackstein, Michael Spannowsky
Boosting Higgs discovery - the forgotten channel
12 pages, 3 figures
Phys.Rev.D82:113012,2010
10.1103/PhysRevD.82.113012
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Searches for a heavy Standard Model Higgs boson focus on the 'gold plated mode' where the Higgs decays to two leptonic Z bosons. This channel provides a clean signature, in spite of the small leptonic branching ratios. We show that using fat jets the semi-leptonic ZZ mode significantly increases the number of signal ...
[ { "created": "Thu, 12 Aug 2010 20:00:03 GMT", "version": "v1" } ]
2010-12-28
[ [ "Hackstein", "Christoph", "" ], [ "Spannowsky", "Michael", "" ] ]
Searches for a heavy Standard Model Higgs boson focus on the 'gold plated mode' where the Higgs decays to two leptonic Z bosons. This channel provides a clean signature, in spite of the small leptonic branching ratios. We show that using fat jets the semi-leptonic ZZ mode significantly increases the number of signal ev...
hep-ph/9609422
Georg Weiglein
A. Denner, S. Dittmaier, G. Weiglein
The background-field formulation of the electroweak Standard Model
13 pages, LaTeX, no figures. Lecture given by G. Weiglein at the XXXVI Cracow School of Theoretical Physics, Zakopane, Poland, June 1--10, 1996. The paper is also available via www at http://www-itp.physik.uni-karlsruhe.de/prep/prep96/preplist96.html
Acta Phys.Polon.B27:3645-3660,1996
null
BI-TP 96/39, KA-TP-22-1996
hep-ph
null
The application of the background-field method to the electroweak Standard Model and its virtues are reviewed. Special emphasis is directed to the Ward identities that follow from the gauge invariance of the background-field effective action. They are compatible with on-shell renormalization and imply a decent behavi...
[ { "created": "Fri, 20 Sep 1996 16:23:43 GMT", "version": "v1" } ]
2011-04-15
[ [ "Denner", "A.", "" ], [ "Dittmaier", "S.", "" ], [ "Weiglein", "G.", "" ] ]
The application of the background-field method to the electroweak Standard Model and its virtues are reviewed. Special emphasis is directed to the Ward identities that follow from the gauge invariance of the background-field effective action. They are compatible with on-shell renormalization and imply a decent behavior...
hep-ph/0412416
Benjamin Grinstein
Benjamin Grinstein
Heavy Meson Physics: What have we learned in Twenty Years?
This talk was presented during the ceremony awarding the Medalla 2003 of the Division of Particles and Fields of The Mexican Phsyical Society, at the IX Mexican Workshop on Particles and Fields; submitted for proceedings; 9 pages, 9 figures; replacement: fix multiple typos
J.Phys.Conf.Ser.37:44-58,2006
10.1088/1742-6596/37/1/011
UCSD/PTH 04-18
hep-ph
null
I give a personal account of the development of the field of heavy quarks. After reviewing the experimental discovery of charm and bottom quarks, I describe how the field's focus shifted towards determination of CKM elements and how this has matured into a precision science.
[ { "created": "Thu, 30 Dec 2004 01:55:32 GMT", "version": "v1" }, { "created": "Tue, 4 Jan 2005 02:17:30 GMT", "version": "v2" } ]
2014-11-18
[ [ "Grinstein", "Benjamin", "" ] ]
I give a personal account of the development of the field of heavy quarks. After reviewing the experimental discovery of charm and bottom quarks, I describe how the field's focus shifted towards determination of CKM elements and how this has matured into a precision science.
1204.0340
Antoni Szczurek
Antoni Szczurek
Production of digluon and quark-antiquark dijets in central exclusive processes
7 pages, 8 figures, invited talk at the EDS Blois workshop in Qui Nhon, Vietnam, December 15-21, 2011
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss exclusive central production of Higgs boson, quark-antiquark and digluon dijets. Some differential distributions are shown and disussed. Irreducible leading-order $b \bar b $ background to Higgs production is calculated. The signal-to-background ratio is shown and improvements are suggested by imposing cut...
[ { "created": "Mon, 2 Apr 2012 08:37:58 GMT", "version": "v1" } ]
2012-04-03
[ [ "Szczurek", "Antoni", "" ] ]
We discuss exclusive central production of Higgs boson, quark-antiquark and digluon dijets. Some differential distributions are shown and disussed. Irreducible leading-order $b \bar b $ background to Higgs production is calculated. The signal-to-background ratio is shown and improvements are suggested by imposing cuts ...
2401.03732
Sindhu D G
Sindhu D G, Akhilesh Ranjan, Hemwati Nandan and V. Sharma
Heavy Hexaquarks in the Flux Tube Model
Preprint of an article submitted for consideration in [Modern Physics Letters A] \c{opyright} [2023] [copyright World Scientific Publishing Company] [https://www.worldscientific.com/worldscinet/mpla]
Mod. Phys. Lett. A, (2024) 2450008
10.1142/S0217732324500081
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Hexaquarks are one of the currently emerging topics in both experimental and theoretical high energy physics. Hexaquarks have been examined in relation to particle physics, however, there are still some research and theoretical conjectures surrounding their relationship to dark matter. Due to some experimental discov...
[ { "created": "Mon, 8 Jan 2024 08:41:55 GMT", "version": "v1" } ]
2024-02-09
[ [ "G", "Sindhu D", "" ], [ "Ranjan", "Akhilesh", "" ], [ "Nandan", "Hemwati", "" ], [ "Sharma", "V.", "" ] ]
Hexaquarks are one of the currently emerging topics in both experimental and theoretical high energy physics. Hexaquarks have been examined in relation to particle physics, however, there are still some research and theoretical conjectures surrounding their relationship to dark matter. Due to some experimental discover...
hep-ph/9607313
Juan Antonio Aguilar Saavedra
J. A. Aguilar-Saavedra
Numerical diagonalization of fermion mass matrices
LaTeX, 10 pages, no figures. PostScript available at http://deneb.ugr.es/papers/ugft67.ps.gz. Package available by anonymous ftp at deneb.ugr.es in directory pub/packages/
Int.J.Mod.Phys. C8 (1997) 147-154
10.1142/S0129183197000151
UG-FT-67/96
hep-ph
null
The diagonalization of general mass matrices is a more delicate problem when eigenvalue degeneracies exist. In this case, often overlooked in the literature, some difficulties arise related to the freedom in the choice of basis in degenerate subspaces. Here two simple algorithms are developed to deal with quark and n...
[ { "created": "Mon, 15 Jul 1996 12:08:39 GMT", "version": "v1" } ]
2015-06-25
[ [ "Aguilar-Saavedra", "J. A.", "" ] ]
The diagonalization of general mass matrices is a more delicate problem when eigenvalue degeneracies exist. In this case, often overlooked in the literature, some difficulties arise related to the freedom in the choice of basis in degenerate subspaces. Here two simple algorithms are developed to deal with quark and neu...
2404.08622
Johannes Michel
Rebecca von Kuk, Johannes K. L. Michel, and Zhiquan Sun
Transverse Momentum-Dependent Heavy-Quark Fragmentation at Next-to-Leading Order
34 pages + appendices and references, 5 figures; v2: corrected secondary mass effects in Sec. 6
null
null
MIT-CTP 5643, DESY-23-174, Nikhef 2023-018
hep-ph
http://creativecommons.org/licenses/by/4.0/
The transverse momentum-dependent fragmentation functions (TMD FFs) of heavy (bottom and charm) quarks, which we recently introduced, are universal building blocks that enter predictions for a large number of observables involving final-state heavy quarks or hadrons. They enable the extension of fixed-order subtracti...
[ { "created": "Fri, 12 Apr 2024 17:32:58 GMT", "version": "v1" }, { "created": "Thu, 25 Apr 2024 09:07:53 GMT", "version": "v2" } ]
2024-04-26
[ [ "von Kuk", "Rebecca", "" ], [ "Michel", "Johannes K. L.", "" ], [ "Sun", "Zhiquan", "" ] ]
The transverse momentum-dependent fragmentation functions (TMD FFs) of heavy (bottom and charm) quarks, which we recently introduced, are universal building blocks that enter predictions for a large number of observables involving final-state heavy quarks or hadrons. They enable the extension of fixed-order subtraction...
2012.00184
Breno Chrispim
B. A. S. D. Chrispim, R. C. L. Bruni and M. S. Guimaraes
Massive photon propagator in the presence of axionic fluctuations
32 pages and 7 figures; added Acknowledgements section; Version to appear in PhysRevB
Phys. Rev. B 103, 165120 (2021)
10.1103/PhysRevB.103.165120
null
hep-ph cond-mat.str-el cond-mat.supr-con hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The theory of massive photons in the presence of axions is studied as the effective theory describing the electromagnetic response of semimetals when a particular quartic fermionic pairing perturbation triggers the formation of charged chiral condensates, giving rise to an axionic superconductor. We investigate corre...
[ { "created": "Tue, 1 Dec 2020 00:33:04 GMT", "version": "v1" }, { "created": "Mon, 18 Jan 2021 20:35:04 GMT", "version": "v2" }, { "created": "Fri, 23 Apr 2021 20:43:32 GMT", "version": "v3" } ]
2021-04-27
[ [ "Chrispim", "B. A. S. D.", "" ], [ "Bruni", "R. C. L.", "" ], [ "Guimaraes", "M. S.", "" ] ]
The theory of massive photons in the presence of axions is studied as the effective theory describing the electromagnetic response of semimetals when a particular quartic fermionic pairing perturbation triggers the formation of charged chiral condensates, giving rise to an axionic superconductor. We investigate correct...
hep-ph/0401057
Deog Ki Hong
Deog Ki Hong (Pusan Nat'l Univ.)
High Density Effective Theory of QCD
13 pages, 10 figures, revtex 4, Talk given at Workshop on Finite Density QCD at Nara, Nara, Japan, 10-12 Jul 2003 and also at NATO Advanced Research Workshop on Superdense QCD Matter and Compact Stars, Yerevan, Armenia, 27 Sep - 4 Oct 2003
Prog.Theor.Phys.Suppl.153:241-258,2004
10.1143/PTPS.153.241
PNUTP-03/A02
hep-ph
null
We discuss the salient features of the high density effective theory (HDET) of QCD, elaborating more on the matching for vector-vector correlators and axial-vector-vector correlators, which are related to screening mass and axial anomaly, respectively. We then apply HDET to discuss various color-superconducting phase...
[ { "created": "Sat, 10 Jan 2004 06:17:51 GMT", "version": "v1" } ]
2008-11-26
[ [ "Hong", "Deog Ki", "", "Pusan Nat'l Univ." ] ]
We discuss the salient features of the high density effective theory (HDET) of QCD, elaborating more on the matching for vector-vector correlators and axial-vector-vector correlators, which are related to screening mass and axial anomaly, respectively. We then apply HDET to discuss various color-superconducting phases ...
1105.5367
Mathias Garny
Mathias Garny, Alejandro Ibarra, Stefan Vogl
Antiproton constraints on dark matter annihilations from internal electroweak bremsstrahlung
32 pages; 13 figures
null
10.1088/1475-7516/2011/07/028
TUM-HEP 808/11
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
If the dark matter particle is a Majorana fermion, annihilations into two fermions and one gauge boson could have, for some choices of the parameters of the model, a non-negligible cross-section. Using a toy model of leptophilic dark matter, we calculate the constraints on the annihilation cross-section into two elec...
[ { "created": "Thu, 26 May 2011 18:16:43 GMT", "version": "v1" } ]
2015-05-28
[ [ "Garny", "Mathias", "" ], [ "Ibarra", "Alejandro", "" ], [ "Vogl", "Stefan", "" ] ]
If the dark matter particle is a Majorana fermion, annihilations into two fermions and one gauge boson could have, for some choices of the parameters of the model, a non-negligible cross-section. Using a toy model of leptophilic dark matter, we calculate the constraints on the annihilation cross-section into two electr...
1307.8011
Philipp Grothaus
Malcolm Fairbairn and Philipp Grothaus
Baryogenesis and Dark Matter with Vector-like Fermions
21 pages, 11 figures, references added, includes discussion of vacuum stability, matches published version
null
10.1007/JHEP10(2013)176
KCL-PH-TH/2013-23
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show that vector-like fermions can act as the dark matter candidate in the universe whilst also playing a crucial role in electroweak baryogenesis through contributing to the barrier in the one-loop thermal scalar potential. In order for the new fermions to give rise to a strong first order phase transition, we sh...
[ { "created": "Tue, 30 Jul 2013 15:09:29 GMT", "version": "v1" }, { "created": "Tue, 5 Nov 2013 12:24:19 GMT", "version": "v2" } ]
2013-11-06
[ [ "Fairbairn", "Malcolm", "" ], [ "Grothaus", "Philipp", "" ] ]
We show that vector-like fermions can act as the dark matter candidate in the universe whilst also playing a crucial role in electroweak baryogenesis through contributing to the barrier in the one-loop thermal scalar potential. In order for the new fermions to give rise to a strong first order phase transition, we show...
hep-ph/0607242
Sascha Vogel
S. Vogel, M. Bleicher
Resonance Production in Heavy Ion Collisions - what can we learn from RHIC?
Proceedings of the 22nd Winter Workshop on Nuclear Dynamics
null
null
null
hep-ph
null
In these proceedings we concentrate on the refeeding and rescattering probability of hadronic resonances. We discuss the probability to form resonances in binary baryon-meson or meson-meson collisions as a function of time for various resonances using a transport model approach (UrQMD). We give an estimate of the re-...
[ { "created": "Fri, 21 Jul 2006 14:53:57 GMT", "version": "v1" }, { "created": "Thu, 27 Jul 2006 10:12:36 GMT", "version": "v2" }, { "created": "Thu, 10 Aug 2006 14:10:13 GMT", "version": "v3" } ]
2007-05-23
[ [ "Vogel", "S.", "" ], [ "Bleicher", "M.", "" ] ]
In these proceedings we concentrate on the refeeding and rescattering probability of hadronic resonances. We discuss the probability to form resonances in binary baryon-meson or meson-meson collisions as a function of time for various resonances using a transport model approach (UrQMD). We give an estimate of the re-fe...
hep-ph/9903287
Alexandr Andrianov
A. A. Andrianov, V. A. Andrianov, R. Rodenberg
Composite Two-Higgs Models and Chiral Symmetry Restoration
17 pages, JHEP Latex, in memory of Alexei A.Anselm
JHEP 9906 (1999) 003
10.1088/1126-6708/1999/06/003
PITHA 99/6, Feb.1999
hep-ph
null
The effective quark models with quasilocal interaction are used for description of two composite Higgs doublets, in strong coupling (tricritical) regime below the compositeness scale \Lambda_{C}. The low energy effective action of Two-Higgs Doublet Standard Model (2HD SM) is obtained in the large N_c and large-log ap...
[ { "created": "Mon, 8 Mar 1999 14:18:06 GMT", "version": "v1" }, { "created": "Wed, 10 Mar 1999 20:02:41 GMT", "version": "v2" } ]
2009-10-31
[ [ "Andrianov", "A. A.", "" ], [ "Andrianov", "V. A.", "" ], [ "Rodenberg", "R.", "" ] ]
The effective quark models with quasilocal interaction are used for description of two composite Higgs doublets, in strong coupling (tricritical) regime below the compositeness scale \Lambda_{C}. The low energy effective action of Two-Higgs Doublet Standard Model (2HD SM) is obtained in the large N_c and large-log appr...
1707.04557
Philip Diessner
Philip Diessner, Wojciech Kotlarski, Sebastian Liebschner, Dominik St\"ockinger
Squark production in R-symmetric SUSY with Dirac gluinos: NLO corrections
46 pages, 15 figures; updated to match published version
J. High Energ. Phys. (2017) 2017: 142
10.1007/JHEP10(2017)142
DESY-17-100
hep-ph
http://creativecommons.org/licenses/by/4.0/
R-symmetry leads to a distinct realisation of SUSY with a significantly modified coloured sector featuring a Dirac gluino and a scalar colour octet (sgluon). We present the impact of R-symmetry on squark production at the 13 TeV LHC. We study the total cross sections and their NLO corrections from all strongly intera...
[ { "created": "Fri, 14 Jul 2017 16:20:27 GMT", "version": "v1" }, { "created": "Wed, 8 Nov 2017 13:41:39 GMT", "version": "v2" } ]
2017-11-22
[ [ "Diessner", "Philip", "" ], [ "Kotlarski", "Wojciech", "" ], [ "Liebschner", "Sebastian", "" ], [ "Stöckinger", "Dominik", "" ] ]
R-symmetry leads to a distinct realisation of SUSY with a significantly modified coloured sector featuring a Dirac gluino and a scalar colour octet (sgluon). We present the impact of R-symmetry on squark production at the 13 TeV LHC. We study the total cross sections and their NLO corrections from all strongly interact...
2305.02588
Chandni Menapara Ms
C. Menapara, A. K. Rai
Properties of N, $\Delta$ Baryons with Screened Potential
15 pages, 6 figures, Suggestions are welcome
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
N and $\Delta$ baryons hold an important place towards understanding the quark dynamics inside hadrons. The hypercentral Constituent Quark Model (hCQM) has been employed in various studies ranging from light to heavy hadrons. In the present article, screened potential has been used to study light baryon resonances. T...
[ { "created": "Thu, 4 May 2023 06:46:13 GMT", "version": "v1" } ]
2023-05-05
[ [ "Menapara", "C.", "" ], [ "Rai", "A. K.", "" ] ]
N and $\Delta$ baryons hold an important place towards understanding the quark dynamics inside hadrons. The hypercentral Constituent Quark Model (hCQM) has been employed in various studies ranging from light to heavy hadrons. In the present article, screened potential has been used to study light baryon resonances. The...
hep-ph/9706225
Fukuko Yuasa
F. Yuasa, Y. Kurihara, S. Kawabata (High Energy Accelerator Research Organization, KEK)
$e^+e^- \to b \bar{b} u \bar{d} \mu^- \bar{\nu}_\mu$ with a $t\bar{t}$ production
17 pages, 8 PostScript figures, LateX; To appear in Phys. Lett. B
Phys.Lett. B414 (1997) 178-186
10.1016/S0370-2693(97)01117-9
KEK Preprint 97-42
hep-ph
null
The cross section of $e^+e^- \to b \bar{b} u \bar{d} \mu^- \bar{\nu}_\mu$ process with a complete set of tree diagrams, 232 diagrams in the unitary gauge, was calculated at the energy range of $\sqrt{s}$ = 340 - 500 GeV by using GRACE system. A main contribution to the cross section comes from $t\bar{t}$ production, ...
[ { "created": "Tue, 3 Jun 1997 09:52:51 GMT", "version": "v1" }, { "created": "Fri, 19 Sep 1997 07:57:13 GMT", "version": "v2" } ]
2009-10-30
[ [ "Yuasa", "F.", "", "High Energy Accelerator Research\n Organization, KEK" ], [ "Kurihara", "Y.", "", "High Energy Accelerator Research\n Organization, KEK" ], [ "Kawabata", "S.", "", "High Energy Accelerator Research\n Organization, KEK" ] ]
The cross section of $e^+e^- \to b \bar{b} u \bar{d} \mu^- \bar{\nu}_\mu$ process with a complete set of tree diagrams, 232 diagrams in the unitary gauge, was calculated at the energy range of $\sqrt{s}$ = 340 - 500 GeV by using GRACE system. A main contribution to the cross section comes from $t\bar{t}$ production, wh...
1904.02631
Nikolaos Stefanis
N. G. Stefanis
Pion-photon transition form factor in QCD. Theoretical predictions and topology-based data analysis
26 pages, 2 tables, 9 figures, uses two-column format. In V2, url's in [22] and [24] removed to resolve problem with format. V3 contains in Figs. 2, 3, 8, 9 comparison with preliminary BESIII data [48] and extended explanations in text
null
null
RUB-TPII-01/2019
hep-ph hep-ex hep-lat physics.data-an
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the evaluation of the transition form factor (TFF) $F^{\gamma*\gamma\pi^0}(Q^2)$ by means of QCD theory and by state-space reconstruction from topological data analysis. We first calculate this quantity in terms of quark-gluon interactions using light cone sum rules (LCSRs). The spectral density includes r...
[ { "created": "Thu, 4 Apr 2019 16:04:02 GMT", "version": "v1" }, { "created": "Fri, 5 Apr 2019 16:20:35 GMT", "version": "v2" }, { "created": "Thu, 20 Jun 2019 14:21:41 GMT", "version": "v3" } ]
2019-06-21
[ [ "Stefanis", "N. G.", "" ] ]
We discuss the evaluation of the transition form factor (TFF) $F^{\gamma*\gamma\pi^0}(Q^2)$ by means of QCD theory and by state-space reconstruction from topological data analysis. We first calculate this quantity in terms of quark-gluon interactions using light cone sum rules (LCSRs). The spectral density includes rad...
0901.1903
Dmitri Kharzeev
Theodor Brasoveanu, Dmitri Kharzeev and Mauricio Martinez
In search of the QCD-Gravity correspondence
31 pages, 7 figures; Lectures delivered by D. Kharzeev at the International QGP Winter School, Jaipur, India, February 1-3, 2008
Lect.Notes Phys.785:341-369,2010
10.1007/978-3-642-02286-9_10
null
hep-ph hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Quantum Chromodynamics (QCD) is the fundamental theory of strong interactions. It describes the behavior of quarks and gluons which are the smallest known constituents of nuclear matter. The difficulties in solving the theory at low energies in the strongly interacting, non-perturbative regime have left unanswered ma...
[ { "created": "Tue, 13 Jan 2009 22:55:49 GMT", "version": "v1" } ]
2009-12-22
[ [ "Brasoveanu", "Theodor", "" ], [ "Kharzeev", "Dmitri", "" ], [ "Martinez", "Mauricio", "" ] ]
Quantum Chromodynamics (QCD) is the fundamental theory of strong interactions. It describes the behavior of quarks and gluons which are the smallest known constituents of nuclear matter. The difficulties in solving the theory at low energies in the strongly interacting, non-perturbative regime have left unanswered many...
0903.3691
George Leontaris
G. K. Leontaris
Instanton induced charged fermion and neutrino masses in a minimal Standard Model scenario from intersecting D-branes
17 pages, 3 figures
Int.J.Mod.Phys.A24:6035-6049,2009
10.1142/S0217751X09047351
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
String instanton Yukawa corrections from Euclidean D-branes are investigated in an effective Standard Model theory obtained from the minimal U(3)xU(2)xU(1) D-brane configuration. In the case of the minimal chiral and Higgs spectrum, it is found that superpotential contributions are induced by string instantons for th...
[ { "created": "Sat, 21 Mar 2009 21:08:05 GMT", "version": "v1" } ]
2010-01-21
[ [ "Leontaris", "G. K.", "" ] ]
String instanton Yukawa corrections from Euclidean D-branes are investigated in an effective Standard Model theory obtained from the minimal U(3)xU(2)xU(1) D-brane configuration. In the case of the minimal chiral and Higgs spectrum, it is found that superpotential contributions are induced by string instantons for the ...
hep-ph/0208126
Igor Anikin
I.V. Anikin (JINR, Dubna), O.V. Teryaev (JINR, Dubna)
Non-factorized genuine twist 3 in exclusive electro-production of vector mesons
4 pages. Talk presented by I.V. Anikin at European Workshop on the QCD Structure of the Nucleon (QCD-N'02), Ferrara, Italy, 3-6 Apr 2002 (to appear in Nucl. Phys. A, Proc. Suppl.)
Nucl.Phys. A711 (2002) 199-202
10.1016/S0375-9474(02)01216-2
null
hep-ph
null
We present an analysis of genuine twist-3 quark contributions to the amplitude of exclusive electro-production of transversely polarized vector mesons. Using the formalism based on the momentum representation we calculated all the genuine twist-3 terms of quark contributions to gamma_T^* --> rho_T amplitude. We found...
[ { "created": "Tue, 13 Aug 2002 15:49:20 GMT", "version": "v1" } ]
2009-11-07
[ [ "Anikin", "I. V.", "", "JINR, Dubna" ], [ "Teryaev", "O. V.", "", "JINR, Dubna" ] ]
We present an analysis of genuine twist-3 quark contributions to the amplitude of exclusive electro-production of transversely polarized vector mesons. Using the formalism based on the momentum representation we calculated all the genuine twist-3 terms of quark contributions to gamma_T^* --> rho_T amplitude. We found t...
hep-ph/9502215
Stanislaw Mrowczynski
Stanislaw Mrowczynski
Sum rule of the correlation function
6 pages, no macros
Phys.Lett. B345 (1995) 393-396
10.1016/0370-2693(94)01631-L
null
hep-ph
null
We derive a sum rule satisfied by the correlation function of two particles with small relative momenta, which results from the completeness condition of the quantum states.
[ { "created": "Thu, 2 Feb 1995 09:39:33 GMT", "version": "v1" } ]
2009-10-28
[ [ "Mrowczynski", "Stanislaw", "" ] ]
We derive a sum rule satisfied by the correlation function of two particles with small relative momenta, which results from the completeness condition of the quantum states.
1902.07200
Jorge Fern\'andez Soriano
Jorge F. Soriano, Antonio L. Maroto
Isotropic charged cosmologies in infrared-modified electrodynamics
10 pages, 6 figures
Phys. Rev. D 100, 083532 (2019)
10.1103/PhysRevD.100.083532
null
hep-ph astro-ph.CO gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It has long been known that the covariant formulation of quantum electrodynamics conflicts with the local description of states in the charged sector. Some of the solutions to this problem amount to modifications of the subsidiary conditions below some arbitrarily low photon frequency. Such infrared modified theories...
[ { "created": "Tue, 19 Feb 2019 18:54:16 GMT", "version": "v1" }, { "created": "Wed, 12 Jun 2019 21:58:16 GMT", "version": "v2" }, { "created": "Mon, 18 Nov 2019 04:53:48 GMT", "version": "v3" } ]
2019-11-19
[ [ "Soriano", "Jorge F.", "" ], [ "Maroto", "Antonio L.", "" ] ]
It has long been known that the covariant formulation of quantum electrodynamics conflicts with the local description of states in the charged sector. Some of the solutions to this problem amount to modifications of the subsidiary conditions below some arbitrarily low photon frequency. Such infrared modified theories h...
2401.05174
Sanjoy Mandal
Eung Jin Chun, Sanjoy Mandal and Rojalin Padhan
Collider imprints of right handed neutrino magnetic moment operator
28 pages, 10 figures
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We consider most general effective Lagrangian up to dimension five, built with Standard Model~(SM) fields and right-handed neutrinos~(RHNs) $N_i$. Assuming that the RHNs are present near the electroweak scale, we study the phenomenology of the RHNs and highlight the differences that arise due to the inclusion of dime...
[ { "created": "Wed, 10 Jan 2024 14:17:24 GMT", "version": "v1" } ]
2024-01-11
[ [ "Chun", "Eung Jin", "" ], [ "Mandal", "Sanjoy", "" ], [ "Padhan", "Rojalin", "" ] ]
We consider most general effective Lagrangian up to dimension five, built with Standard Model~(SM) fields and right-handed neutrinos~(RHNs) $N_i$. Assuming that the RHNs are present near the electroweak scale, we study the phenomenology of the RHNs and highlight the differences that arise due to the inclusion of dimens...
1801.10159
Mukul Sholapurkar
Rouven Essig, Mukul Sholapurkar, Tien-Tien Yu
Solar Neutrinos as a Signal and Background in Direct-Detection Experiments Searching for Sub-GeV Dark Matter With Electron Recoils
17 pages + refs, 15 figures, 4 tables. v3 minor corrections. Scaling of Fig. 9 corrected. Minor corrections to Fig. 4,7,8 and 15. Conclusions unchanged
Phys. Rev. D 97, 095029 (2018)
10.1103/PhysRevD.97.095029
YITP-SB-17-36, CERN-TH-2017-194
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Direct-detection experiments sensitive to low-energy electron recoils from sub-GeV dark matter (DM) interactions will also be sensitive to solar neutrinos via coherent neutrino-nucleus scattering (CNS), since the recoiling nucleus can produce a small ionization signal. Solar neutrinos constitute both an interesting s...
[ { "created": "Tue, 30 Jan 2018 19:00:00 GMT", "version": "v1" }, { "created": "Sat, 2 Jun 2018 18:17:50 GMT", "version": "v2" }, { "created": "Wed, 19 Sep 2018 05:46:37 GMT", "version": "v3" } ]
2018-09-20
[ [ "Essig", "Rouven", "" ], [ "Sholapurkar", "Mukul", "" ], [ "Yu", "Tien-Tien", "" ] ]
Direct-detection experiments sensitive to low-energy electron recoils from sub-GeV dark matter (DM) interactions will also be sensitive to solar neutrinos via coherent neutrino-nucleus scattering (CNS), since the recoiling nucleus can produce a small ionization signal. Solar neutrinos constitute both an interesting sig...
0901.2504
Stefano Forte
M. Dittmar, S. Forte, A. Glazov, S. Moch (convenors), G. Altarelli, J. Anderson, R. D. Ball, G. Beuf, M. Boonekamp, H. Burkhardt, F. Caola, M. Ciafaloni, D. Colferai, A. Cooper-Sarkar, A. de Roeck, L. Del Debbio, J. Feltesse, F. Gelis, J. Grebenyuk, A. Guffanti, V. Halyo, J. I. Latorre, V. Lendermann, Gang Li, ...
Parton Distributions
99 pages, 61 figures; summary report of Working Group I for the HERA-LHC workshop. Requires cernrep.cls and mcite.sty. Various typos corrected
null
null
IFUM-936-FT
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We provide an assessment of the state of the art in various issues related to experimental measurements, phenomenological methods and theoretical results relevant for the determination of parton distribution functions (PDFs) and their uncertainties, with the specific aim of providing benchmarks of different existing ...
[ { "created": "Fri, 16 Jan 2009 15:14:30 GMT", "version": "v1" }, { "created": "Fri, 23 Jan 2009 11:09:18 GMT", "version": "v2" } ]
2009-01-23
[ [ "Dittmar", "M.", "", "convenors" ], [ "Forte", "S.", "", "convenors" ], [ "Glazov", "A.", "", "convenors" ], [ "Moch", "S.", "", "convenors" ], [ "Altarelli", "G.", "" ], [ "Anderson", "J.", "" ], [ ...
We provide an assessment of the state of the art in various issues related to experimental measurements, phenomenological methods and theoretical results relevant for the determination of parton distribution functions (PDFs) and their uncertainties, with the specific aim of providing benchmarks of different existing ap...
1703.05947
Gabor Andras Almasi
Gabor Almasi, Bengt Friman, Krzysztof Redlich
Baryon number fluctuations in chiral effective models and their phenomenological implications
15 pages, 13 figures
Phys. Rev. D 96, 014027 (2017)
10.1103/PhysRevD.96.014027
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the critical properties of net-baryon-number fluctuations at the chiral restoration transition in a medium at finite temperature and net baryon density. The chiral dynamics of quantum chromodynamics (QCD) is modeled by the Polykov-loop extended Quark-Meson Lagrangian, that includes the coupling of quarks to ...
[ { "created": "Fri, 17 Mar 2017 10:05:50 GMT", "version": "v1" } ]
2017-08-02
[ [ "Almasi", "Gabor", "" ], [ "Friman", "Bengt", "" ], [ "Redlich", "Krzysztof", "" ] ]
We study the critical properties of net-baryon-number fluctuations at the chiral restoration transition in a medium at finite temperature and net baryon density. The chiral dynamics of quantum chromodynamics (QCD) is modeled by the Polykov-loop extended Quark-Meson Lagrangian, that includes the coupling of quarks to ve...
2204.11885
Anirban Das
Anirban Das, Yuber F. Perez-Gonzalez, and Manibrata Sen
Neutrino secret self-interactions: a booster shot for the cosmic neutrino background
v1: 9 pages, 6 figures, v2: Figures improved, references added, v3: Text improved, matches published version
null
10.1103/PhysRevD.106.095042
SLAC-PUB-17673, IPPP/22/24
hep-ph astro-ph.CO astro-ph.HE
http://creativecommons.org/licenses/by/4.0/
Neutrinos might interact among themselves through forces that have so far remained hidden. Throughout the history of the Universe, such \emph{secret} interactions could lead to scatterings between the neutrinos from supernova explosions and the non-relativistic relic neutrinos left over from the Big Bang. Such scatte...
[ { "created": "Mon, 25 Apr 2022 18:00:08 GMT", "version": "v1" }, { "created": "Wed, 27 Apr 2022 16:45:40 GMT", "version": "v2" }, { "created": "Mon, 9 Jan 2023 23:52:57 GMT", "version": "v3" } ]
2023-01-11
[ [ "Das", "Anirban", "" ], [ "Perez-Gonzalez", "Yuber F.", "" ], [ "Sen", "Manibrata", "" ] ]
Neutrinos might interact among themselves through forces that have so far remained hidden. Throughout the history of the Universe, such \emph{secret} interactions could lead to scatterings between the neutrinos from supernova explosions and the non-relativistic relic neutrinos left over from the Big Bang. Such scatteri...
hep-ph/0703104
Carlos A. Salgado
Kari J. Eskola, Vesa J. Kolhinen, Hannu Paukkunen and Carlos A. Salgado
A global reanalysis of nuclear parton distribution functions
33 pages, 14 figures
JHEP 0705:002,2007
10.1088/1126-6708/2007/05/002
HIP-2007-10/TH, Roma1-1448/2007
hep-ph
null
We determine the nuclear modifications of parton distribution functions of bound protons at scales $Q^2\ge 1.69$ GeV$^2$ and momentum fractions $10^{-5}\le x\le 1$ in a global analysis which utilizes nuclear hard process data, sum rules and leading-order DGLAP scale evolution. The main improvements over our earlier w...
[ { "created": "Fri, 9 Mar 2007 14:36:56 GMT", "version": "v1" } ]
2014-11-18
[ [ "Eskola", "Kari J.", "" ], [ "Kolhinen", "Vesa J.", "" ], [ "Paukkunen", "Hannu", "" ], [ "Salgado", "Carlos A.", "" ] ]
We determine the nuclear modifications of parton distribution functions of bound protons at scales $Q^2\ge 1.69$ GeV$^2$ and momentum fractions $10^{-5}\le x\le 1$ in a global analysis which utilizes nuclear hard process data, sum rules and leading-order DGLAP scale evolution. The main improvements over our earlier wor...
1711.03925
Wolfgang Lucha
Wolfgang Lucha, Dmitri Melikhov, Hagop Sazdjian
Constraints from the $1/N_{\rm c}$ Expansion on Properties of Exotic Tetraquark Mesons
4 pages, 2 figures, contributed to "XVII International Conference on Hadron Spectroscopy and Structure - Hadron2017" (25 - 29 September 2017, Salamanca, Spain)
PoS Hadron2017 (2017) 233
null
HEPHY-PUB 995/17 (2017)
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Scrutinizing the scattering of ordinary mesons in the limiting case of the number of colour degrees of freedom $N_{\rm c}$ of quantum chromodynamics approaching infinity, we formulate Feynman-diagram selection criteria and from these deduce rigorous self-consistency conditions for the manifestation of a tetraquark, a...
[ { "created": "Fri, 10 Nov 2017 17:22:30 GMT", "version": "v1" } ]
2018-02-20
[ [ "Lucha", "Wolfgang", "" ], [ "Melikhov", "Dmitri", "" ], [ "Sazdjian", "Hagop", "" ] ]
Scrutinizing the scattering of ordinary mesons in the limiting case of the number of colour degrees of freedom $N_{\rm c}$ of quantum chromodynamics approaching infinity, we formulate Feynman-diagram selection criteria and from these deduce rigorous self-consistency conditions for the manifestation of a tetraquark, a t...
2303.11352
Lucien Heurtier
Robert Heighton, Lucien Heurtier and Michael Spannowsky
Hunting for Neutral Leptons with Ultra-High-Energy Cosmic Rays
14 pages, 11 figures. Manuscript updated with additional references
null
null
null
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Next-generation large-volume detectors, such as GRAND, POEMMA, Trinity, TAROGE-M, TAMBO, or PUEO, have been designed to search for ultra-high-energy cosmic rays (UHECRs) with unprecedented sensitivity. We propose to use these detectors to search for new physics beyond the Standard Model (BSM). By considering the simp...
[ { "created": "Mon, 20 Mar 2023 18:00:01 GMT", "version": "v1" }, { "created": "Thu, 27 Apr 2023 11:49:50 GMT", "version": "v2" } ]
2023-04-28
[ [ "Heighton", "Robert", "" ], [ "Heurtier", "Lucien", "" ], [ "Spannowsky", "Michael", "" ] ]
Next-generation large-volume detectors, such as GRAND, POEMMA, Trinity, TAROGE-M, TAMBO, or PUEO, have been designed to search for ultra-high-energy cosmic rays (UHECRs) with unprecedented sensitivity. We propose to use these detectors to search for new physics beyond the Standard Model (BSM). By considering the simple...
2102.05818
Boris Blankleider
B. Blankleider and A. N. Kvinikhidze
Comment on "$\sigma$-meson: Four-quark versus two-quark components and decay width in a Bethe-Salpeter approach"
4 pages, 2 figures, misprints in Eq.(5) and Eq.(7) corrected
null
null
null
hep-ph nucl-th
http://creativecommons.org/licenses/by/4.0/
In a recent paper by N. Santowsky et al. [Phys. Rev. D 102, 056014 (2020)], covariant coupled equations were derived to describe a tetraquark in terms of a mix of four-quark states $2q 2\bar{q}$ and two-quark states $q\bar{q}$. These equations were expressed in terms of vertices describing the disintegration of a tet...
[ { "created": "Thu, 11 Feb 2021 02:49:19 GMT", "version": "v1" }, { "created": "Sat, 27 Feb 2021 20:51:52 GMT", "version": "v2" } ]
2021-03-02
[ [ "Blankleider", "B.", "" ], [ "Kvinikhidze", "A. N.", "" ] ]
In a recent paper by N. Santowsky et al. [Phys. Rev. D 102, 056014 (2020)], covariant coupled equations were derived to describe a tetraquark in terms of a mix of four-quark states $2q 2\bar{q}$ and two-quark states $q\bar{q}$. These equations were expressed in terms of vertices describing the disintegration of a tetra...