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0901.4599
Bjoern Duling
Bjoern Duling
K and B meson mixing in warped extra dimensions with custodial protection
9 pages, 4 figures. To appear in the Discrete'08 proceedings
J.Phys.Conf.Ser.171:012061,2009
10.1088/1742-6596/171/1/012061
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
After a brief theoretical introduction of the warped extra-dimensional model with custodial protection the results of arXiv:0809.1073 [hep-ph] are presented. In this work we analyze the impact of Kaluza-Klein (KK) gauge boson modes on Delta F=2 observables, for the first time considering the full operator basis and i...
[ { "created": "Thu, 29 Jan 2009 16:09:38 GMT", "version": "v1" } ]
2009-07-22
[ [ "Duling", "Bjoern", "" ] ]
After a brief theoretical introduction of the warped extra-dimensional model with custodial protection the results of arXiv:0809.1073 [hep-ph] are presented. In this work we analyze the impact of Kaluza-Klein (KK) gauge boson modes on Delta F=2 observables, for the first time considering the full operator basis and inc...
1304.3356
Angel Gomez Nicola
A. Gomez Nicola, J. Ruiz de Elvira, R. Torres Andres
Chiral Symmetry Restoration and Scalar-Pseudoscalar partners in QCD
9 pages, 4 figures. Enlarged version to appear in Phys.Rev.D
Phys. Rev. D 88, 076007 (2013)
10.1103/PhysRevD.88.076007
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We describe Scalar-Pseudoscalar partner degeneration at the QCD chiral transition in terms of the dominant low-energy physical states for the light quark sector. First, we obtain within model-independent one-loop Chiral Perturbation Theory (ChPT) that the QCD pseudoscalar susceptibility is proportional to the quark c...
[ { "created": "Thu, 11 Apr 2013 16:16:05 GMT", "version": "v1" }, { "created": "Thu, 17 Oct 2013 18:54:44 GMT", "version": "v2" } ]
2013-10-30
[ [ "Nicola", "A. Gomez", "" ], [ "de Elvira", "J. Ruiz", "" ], [ "Andres", "R. Torres", "" ] ]
We describe Scalar-Pseudoscalar partner degeneration at the QCD chiral transition in terms of the dominant low-energy physical states for the light quark sector. First, we obtain within model-independent one-loop Chiral Perturbation Theory (ChPT) that the QCD pseudoscalar susceptibility is proportional to the quark con...
1112.2047
Claude Semay
Fabien Buisseret, Nicolas Matagne, Claude Semay
Spin contribution to light baryons in different large-$N$ limits
1 figure
Phys. Rev. D 85, 036010 (2012)
10.1103/PhysRevD.85.036010
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the spin contribution to light baryon ground states in three inequivalent large-$N$ limits: 't Hooft, QCD antisymmetric and QCD symmetric. Our framework is a constituent quark model with a relativistic Hamiltonian containing a stringlike confinement and a one-gluon exchange term. Two spin-dependent pot...
[ { "created": "Fri, 9 Dec 2011 08:39:45 GMT", "version": "v1" } ]
2012-02-29
[ [ "Buisseret", "Fabien", "" ], [ "Matagne", "Nicolas", "" ], [ "Semay", "Claude", "" ] ]
We investigate the spin contribution to light baryon ground states in three inequivalent large-$N$ limits: 't Hooft, QCD antisymmetric and QCD symmetric. Our framework is a constituent quark model with a relativistic Hamiltonian containing a stringlike confinement and a one-gluon exchange term. Two spin-dependent poten...
1310.1070
Martin Bauer
Kaustubh Agashe, Martin Bauer, Florian Goertz, Seung J. Lee, Luca Vecchi, Lian-Tao Wang, Felix Yu
Constraining RS Models by Future Flavor and Collider Measurements: A Snowmass Whitepaper
20 pages, 9 figures
null
null
FERMILAB-CONF-13-435-T
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Randall-Sundrum models are models of quark flavor, because they explain the hierarchies in the quark masses and mixings in terms of order one localization parameters of extra dimensional wavefunctions. The same small numbers which generate the light quark masses suppress contributions to flavor violating tree level a...
[ { "created": "Thu, 3 Oct 2013 19:17:52 GMT", "version": "v1" } ]
2013-10-04
[ [ "Agashe", "Kaustubh", "" ], [ "Bauer", "Martin", "" ], [ "Goertz", "Florian", "" ], [ "Lee", "Seung J.", "" ], [ "Vecchi", "Luca", "" ], [ "Wang", "Lian-Tao", "" ], [ "Yu", "Felix", "" ] ]
Randall-Sundrum models are models of quark flavor, because they explain the hierarchies in the quark masses and mixings in terms of order one localization parameters of extra dimensional wavefunctions. The same small numbers which generate the light quark masses suppress contributions to flavor violating tree level amp...
1202.3556
Alexander Semke
A. Semke and M. F. M. Lutz
Strangeness in the baryon ground states
15 pages, 5 tables, 3 figures. There are two significant extensions in the revised manuscript. First, a precise determination of the axial coupling constants F and D from the lattice data on the baryon masses is provided. Second, it is shown that the lattice data of the QCDSF-UKQCD group on the baryon masses in...
null
10.1016/j.physletb.2012.09.008
null
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We compute the strangeness content of the baryon octet and decuplet states based on an analysis of recent lattice simulations of the BMW, PACS, LHPC and HSC groups for the pion-mass dependence of the baryon masses. Our results rely on the relativistic chiral Lagrangian and large-$N_c$ sum rule estimates of the counte...
[ { "created": "Thu, 16 Feb 2012 10:33:58 GMT", "version": "v1" }, { "created": "Mon, 18 Jun 2012 18:59:16 GMT", "version": "v2" }, { "created": "Fri, 14 Sep 2012 19:06:12 GMT", "version": "v3" } ]
2015-06-04
[ [ "Semke", "A.", "" ], [ "Lutz", "M. F. M.", "" ] ]
We compute the strangeness content of the baryon octet and decuplet states based on an analysis of recent lattice simulations of the BMW, PACS, LHPC and HSC groups for the pion-mass dependence of the baryon masses. Our results rely on the relativistic chiral Lagrangian and large-$N_c$ sum rule estimates of the counter ...
2108.05398
Yohei Ema
Yohei Ema, Ting Gao, Maxim Pospelov
Improved indirect limits on muon EDM
5 pages, 2 figures; v2: references added; v3: supplemental material added, version accepted in PRL
null
null
DESY 21-118
hep-ph
http://creativecommons.org/licenses/by/4.0/
Given current discrepancy in muon $g-2$ and future dedicated efforts to measure muon electric dipole moment (EDM) $d_\mu$, we assess the indirect constraints imposed on $d_\mu$ by the EDM measurements performed with heavy atoms and molecules. We notice that the dominant muon EDM effect arises via the muon-loop induce...
[ { "created": "Wed, 11 Aug 2021 18:27:27 GMT", "version": "v1" }, { "created": "Wed, 6 Oct 2021 02:31:22 GMT", "version": "v2" }, { "created": "Sat, 26 Mar 2022 18:51:53 GMT", "version": "v3" } ]
2022-03-29
[ [ "Ema", "Yohei", "" ], [ "Gao", "Ting", "" ], [ "Pospelov", "Maxim", "" ] ]
Given current discrepancy in muon $g-2$ and future dedicated efforts to measure muon electric dipole moment (EDM) $d_\mu$, we assess the indirect constraints imposed on $d_\mu$ by the EDM measurements performed with heavy atoms and molecules. We notice that the dominant muon EDM effect arises via the muon-loop induced ...
2203.02981
J.K. Chen
Jiao-Kai Chen
Revisiting the pion Regge trajectories
14 pages, 9 figures, 4 tables. V3: Nucl. Phys. B
Nucl. Phys. B 983 (2022) 115911
10.1016/j.nuclphysb.2022.115911
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a model-independent ansatz $M={\beta_x}\left(x+c_0\right)^{\nu}+c_1$ ($x=l,\,n_r$) and then use it to fit the orbital and radial pion Regge trajectories without the preset values. It is shown that nonzero $c_1$ is reasonable and acceptable. Nonzero $c_1$ gives an explanation for the nonlinearity of the pio...
[ { "created": "Sun, 6 Mar 2022 15:10:51 GMT", "version": "v1" }, { "created": "Sun, 17 Jul 2022 10:12:12 GMT", "version": "v2" }, { "created": "Sun, 7 Aug 2022 04:03:48 GMT", "version": "v3" } ]
2022-08-17
[ [ "Chen", "Jiao-Kai", "" ] ]
We propose a model-independent ansatz $M={\beta_x}\left(x+c_0\right)^{\nu}+c_1$ ($x=l,\,n_r$) and then use it to fit the orbital and radial pion Regge trajectories without the preset values. It is shown that nonzero $c_1$ is reasonable and acceptable. Nonzero $c_1$ gives an explanation for the nonlinearity of the pion ...
hep-ph/0102211
Uma Mahanta
Uma Mahanta
Constraining new physics in the Tev range by the recent BNL measurement of (g-2)_{\mu}
Final version to be published in Physics Letters B
Phys.Lett. B511 (2001) 235-239
10.1016/S0370-2693(01)00637-2
null
hep-ph
null
In this paper we study the implications of the recent high precision measurement of (g-2)_{\mu} by BNL on new heavy physics beyond the SM in a model independent way. We find that if the new physics responsible for the muon anomaly is due to d=6 direct operators then they could arise from the following follwing three ...
[ { "created": "Fri, 16 Feb 2001 18:24:46 GMT", "version": "v1" }, { "created": "Sun, 18 Feb 2001 12:23:38 GMT", "version": "v2" }, { "created": "Sun, 18 Mar 2001 13:42:22 GMT", "version": "v3" }, { "created": "Tue, 19 Jun 2001 11:22:53 GMT", "version": "v4" } ]
2009-11-07
[ [ "Mahanta", "Uma", "" ] ]
In this paper we study the implications of the recent high precision measurement of (g-2)_{\mu} by BNL on new heavy physics beyond the SM in a model independent way. We find that if the new physics responsible for the muon anomaly is due to d=6 direct operators then they could arise from the following follwing three br...
1209.0042
Qingfeng Li
Qingfeng Li, Gunnar Graef and Marcus Bleicher
UrQMD calculations of two-pion HBT correlations in p+p and Pb+Pb collisions at LHC energies
9 pages, 4 figures, 1 table. Talk given by Qingfeng Li at the 11th International Conference on Nucleus-Nucleus Collisions (NN2012), San Antonio, Texas, USA, May 27-June 1, 2012. To appear in the NN2012 Proceedings in Journal of Physics: Conference Series (JPCS)
null
10.1088/1742-6596/420/1/012039
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Two-pion Hanbury-Brown-Twiss (HBT) correlations for p+p and central Pb+Pb collisions at the Large-Hadron-Collider (LHC) energies are investigated with the ultra-relativistic quantum molecular dynamics model combined with a correlation afterburner. The transverse momentum dependence of the Pratt-Bertsch HBT radii $R_{...
[ { "created": "Sat, 1 Sep 2012 01:06:35 GMT", "version": "v1" } ]
2015-06-11
[ [ "Li", "Qingfeng", "" ], [ "Graef", "Gunnar", "" ], [ "Bleicher", "Marcus", "" ] ]
Two-pion Hanbury-Brown-Twiss (HBT) correlations for p+p and central Pb+Pb collisions at the Large-Hadron-Collider (LHC) energies are investigated with the ultra-relativistic quantum molecular dynamics model combined with a correlation afterburner. The transverse momentum dependence of the Pratt-Bertsch HBT radii $R_{lo...
1611.08511
Howard Baer
Howard Baer, Vernon Barger, Natsumi Nagata and Michael Savoy
A top-squark hunter's guide
20 pages with 10 .png figures; version 2 contains updated b->s gamma data and added references
Phys. Rev. D 95, 055012 (2017)
10.1103/PhysRevD.95.055012
UT-16-32
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In supersymmetric models with radiatively-driven naturalness and light higgsinos, the top squarks may lie in the 0.5- 3TeV range and thus only a fraction of natural parameter space is accessible to LHC searches. We outline the range of top squark and lightest SUSY particle masses preferred by electroweak naturalness ...
[ { "created": "Fri, 25 Nov 2016 16:35:31 GMT", "version": "v1" }, { "created": "Thu, 1 Dec 2016 17:44:06 GMT", "version": "v2" } ]
2017-03-22
[ [ "Baer", "Howard", "" ], [ "Barger", "Vernon", "" ], [ "Nagata", "Natsumi", "" ], [ "Savoy", "Michael", "" ] ]
In supersymmetric models with radiatively-driven naturalness and light higgsinos, the top squarks may lie in the 0.5- 3TeV range and thus only a fraction of natural parameter space is accessible to LHC searches. We outline the range of top squark and lightest SUSY particle masses preferred by electroweak naturalness in...
2308.07133
Shi-Ping He
Shi-Ping He
Handbook of the analytic and expansion formulae for the muon $g-2$ anomaly
25 pages, 1 captioned figure, 2 tables. This manuscript will continue to be updated. Suggestions and comments are welcome
null
null
null
hep-ph hep-ex
http://creativecommons.org/licenses/by-nc-nd/4.0/
Since announcement of the muon $g-2$ anomaly, plenty of papers have devoted to this anomaly. The approximate formulae are always adopted when determining the new physics contributions to $(g-2)_{\mu}$, while clear scope of applications are always absent. This manuscript is dedicated to the comprehensive analytical re...
[ { "created": "Mon, 14 Aug 2023 13:39:24 GMT", "version": "v1" } ]
2023-08-15
[ [ "He", "Shi-Ping", "" ] ]
Since announcement of the muon $g-2$ anomaly, plenty of papers have devoted to this anomaly. The approximate formulae are always adopted when determining the new physics contributions to $(g-2)_{\mu}$, while clear scope of applications are always absent. This manuscript is dedicated to the comprehensive analytical resu...
hep-ph/9312344
Dr. Dubravko Klabucar
D. Klabu\v{c}ar
Instantons And Baryon Mass Splittings in the MIT Bag Model
23 pages, report ZTF-93/10 (to appear in Phys.Rev. D)
Phys.Rev. D49 (1994) 1506-1512
10.1103/PhysRevD.49.1506
null
hep-ph
null
The contribution of instanton-induced effective inter-quark interactions to the baryon mass splittings was considered in the bag model. It is found that results are different from those obtained in the constituent quark model where the instanton effects are like those from one-gluon exchange. This is because in the c...
[ { "created": "Mon, 27 Dec 1993 17:17:20 GMT", "version": "v1" } ]
2009-10-22
[ [ "Klabučar", "D.", "" ] ]
The contribution of instanton-induced effective inter-quark interactions to the baryon mass splittings was considered in the bag model. It is found that results are different from those obtained in the constituent quark model where the instanton effects are like those from one-gluon exchange. This is because in the con...
hep-ph/9901232
Mohammad Ahmady
Mohammad R. Ahmady (RIKEN, Wako) and Victor Elias (Western Ontario)
Nonperturbative QCD corrections to the effective coefficients of the four-Fermi operators
12 pages, Revtex, 3 postscript figures (included)
Phys.Rev. D60 (1999) 074013
10.1103/PhysRevD.60.074013
RIKEN-AF-NP-295
hep-ph
null
We calculate the leading nonperturbative contributions to the effective Wilson coefficient of the four-fermion operators arising from the QCD penguin, and we demonstrate how the usual perturbative one loop contribution is augmented by nonperturbative condensates. These corrections, which are obtained by quark and glu...
[ { "created": "Wed, 6 Jan 1999 06:23:43 GMT", "version": "v1" } ]
2016-09-06
[ [ "Ahmady", "Mohammad R.", "", "RIKEN, Wako" ], [ "Elias", "Victor", "", "Western Ontario" ] ]
We calculate the leading nonperturbative contributions to the effective Wilson coefficient of the four-fermion operators arising from the QCD penguin, and we demonstrate how the usual perturbative one loop contribution is augmented by nonperturbative condensates. These corrections, which are obtained by quark and gluon...
1708.02764
Vinicius Rodrigues Debastiani
M. Bayar and V. R. Debastiani
$a_0(980) - f_0(980)$ mixing in $\chi_{c1} \to \pi^0 f_0(980) \to \pi^0 \pi^+ \pi^-$ and $\chi_{c1} \to \pi^0 a_0(980) \to \pi^0 \pi^0 \eta$
revised manuscript, new figures, new references; 8 pages, 6 figures
Phys. Lett. B 775, 94 (2017)
10.1016/j.physletb.2017.10.061
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the isospin breaking in the reactions $\chi_{c1} \to \pi^0 \pi^+ \pi^-$ and $\chi_{c1} \to \pi^0 \pi^0 \eta$ and its relation to the $a_0(980) - f_0(980)$ mixing, which was measured by the BESIII Collaboration. We show that the same theoretical model previously developed to study the $\chi_{c1} \to \eta \pi^...
[ { "created": "Wed, 9 Aug 2017 08:56:23 GMT", "version": "v1" }, { "created": "Tue, 17 Oct 2017 16:59:53 GMT", "version": "v2" } ]
2017-11-03
[ [ "Bayar", "M.", "" ], [ "Debastiani", "V. R.", "" ] ]
We study the isospin breaking in the reactions $\chi_{c1} \to \pi^0 \pi^+ \pi^-$ and $\chi_{c1} \to \pi^0 \pi^0 \eta$ and its relation to the $a_0(980) - f_0(980)$ mixing, which was measured by the BESIII Collaboration. We show that the same theoretical model previously developed to study the $\chi_{c1} \to \eta \pi^+ ...
1306.5546
Hyejung St\"ockinger-Kim
C. Gnendiger, D. St\"ockinger, H. St\"ockinger-Kim
The electroweak contributions to (g-2)_\mu\ after the Higgs boson mass measurement
11 pages, 5 figures. Slight update of numbers. Version to appear in Phys.Rev.D
null
10.1103/PhysRevD.88.053005
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Higgs boson mass used to be the only unknown input parameter of the electroweak contributions to (g-2)_\mu\ in the Standard Model. It enters at the two-loop level in diagrams with e.g. top loops, W- or Z-exchange. We re-evaluate these contributions, providing analytic expressions and exact numerical results for t...
[ { "created": "Mon, 24 Jun 2013 09:21:14 GMT", "version": "v1" }, { "created": "Tue, 3 Sep 2013 08:30:31 GMT", "version": "v2" } ]
2013-09-18
[ [ "Gnendiger", "C.", "" ], [ "Stöckinger", "D.", "" ], [ "Stöckinger-Kim", "H.", "" ] ]
The Higgs boson mass used to be the only unknown input parameter of the electroweak contributions to (g-2)_\mu\ in the Standard Model. It enters at the two-loop level in diagrams with e.g. top loops, W- or Z-exchange. We re-evaluate these contributions, providing analytic expressions and exact numerical results for the...
1701.00812
Renata Jora
Amir H. Fariborz and Renata Jora
Electromagnetic axial anomaly in a generalized linear sigma model
15 pages; version to be published in Phys. Rev. D
Phys. Rev. D 95, 114001 (2017)
10.1103/PhysRevD.95.114001
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We construct the electromagnetic anomaly effective term for a generalized linear sigma model with two chiral nonets, one with a quark-antiquark structure, the other one with a four quark content. We compute in the leading order of this framework the decays into two photons of six pseudoscalars: $\pi_0(137)$, $\pi_0(1...
[ { "created": "Tue, 3 Jan 2017 20:25:48 GMT", "version": "v1" }, { "created": "Thu, 27 Apr 2017 11:04:25 GMT", "version": "v2" } ]
2017-06-07
[ [ "Fariborz", "Amir H.", "" ], [ "Jora", "Renata", "" ] ]
We construct the electromagnetic anomaly effective term for a generalized linear sigma model with two chiral nonets, one with a quark-antiquark structure, the other one with a four quark content. We compute in the leading order of this framework the decays into two photons of six pseudoscalars: $\pi_0(137)$, $\pi_0(130...
hep-ph/9408227
null
E.M. Henley and G.A. Miller
A Proposed Test of Charge Symmetry in $\Sigma$ Decay
6 pages, submitted to Physical Review D, Brief Reports, Report # DOE/ER/40427-14-N94
Phys.Rev. D50 (1994) 7077-7078
10.1103/PhysRevD.50.7077
null
hep-ph
null
The semi-leptonic decays of $\Sigma^\pm$ offer a vehicle for observing charge symmetry-breaking. The effect is expected to be about 6\%, enhanced due to the replacement of two u quarks by d quarks. We propose that present experimental data be improved to search for this effect.
[ { "created": "Wed, 3 Aug 1994 20:09:58 GMT", "version": "v1" } ]
2009-10-28
[ [ "Henley", "E. M.", "" ], [ "Miller", "G. A.", "" ] ]
The semi-leptonic decays of $\Sigma^\pm$ offer a vehicle for observing charge symmetry-breaking. The effect is expected to be about 6\%, enhanced due to the replacement of two u quarks by d quarks. We propose that present experimental data be improved to search for this effect.
1510.00128
Andrzej Buras
Andrzej J. Buras
Kaon Theory News
Talk presented at HEP-EPS in Vienna, July 2015, 15 pages, 3 figures
null
null
null
hep-ph hep-ex hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
During the last fifteen years B_{s,d} decays, B_{s,d}^0-\bar B^0_{s,d} mixings, CP-violating asymmetries S_{\psi K_S} and S_{\psi\phi} provided the dominant information about the pattern of flavour violation within the SM and its extensions. We emphasize that in the coming years K meson physics will certainly strike ...
[ { "created": "Thu, 1 Oct 2015 07:35:43 GMT", "version": "v1" } ]
2015-10-02
[ [ "Buras", "Andrzej J.", "" ] ]
During the last fifteen years B_{s,d} decays, B_{s,d}^0-\bar B^0_{s,d} mixings, CP-violating asymmetries S_{\psi K_S} and S_{\psi\phi} provided the dominant information about the pattern of flavour violation within the SM and its extensions. We emphasize that in the coming years K meson physics will certainly strike ba...
hep-ph/0308317
Igor Marfin
I. Marfin, V. Mossolov, T. Shishkina
Study of Quartic Boson Vertices at Photon Colliders in the Standard Model and Beyond
Invited talk at the XXIII Physics in Collisions Conference (PIC03), Zeuthen, Germany, June 2003, 3 pages, LaTeX, 4 eps figures. PSN FRAP11
null
null
null
hep-ph
null
The production of several vector bosons in $\gamma\gamma$-interactions is the best place to search directly for any anomalous behavior of triple and quartic couplings. A few anomalous quartic boson operators are considered in the paper. A high precision of anomalous effects can be achieved by calculation of the lowes...
[ { "created": "Fri, 29 Aug 2003 14:05:48 GMT", "version": "v1" } ]
2007-05-23
[ [ "Marfin", "I.", "" ], [ "Mossolov", "V.", "" ], [ "Shishkina", "T.", "" ] ]
The production of several vector bosons in $\gamma\gamma$-interactions is the best place to search directly for any anomalous behavior of triple and quartic couplings. A few anomalous quartic boson operators are considered in the paper. A high precision of anomalous effects can be achieved by calculation of the lowest ...
1504.07415
Fanrong Xu
Fanrong Xu
Dark $Z$ Implication for Flavor Physics
13 pages, 3 figures; For V2 typo corrected, references added, published in JHEP
JHEP 06 (2015) 170
10.1007/JHEP06(2015)170
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Dark $Z$/dark photon ($Z'$) is one candidate of dark force carrier, which helps to interpret the properties of dark matter (DM). Other than traditional studies of DM including direct detection, indirect detection and collider simulation, in this work we take flavor physics as a complementary approach to investigate t...
[ { "created": "Tue, 28 Apr 2015 10:38:06 GMT", "version": "v1" }, { "created": "Fri, 3 Jul 2015 01:12:50 GMT", "version": "v2" } ]
2015-07-06
[ [ "Xu", "Fanrong", "" ] ]
Dark $Z$/dark photon ($Z'$) is one candidate of dark force carrier, which helps to interpret the properties of dark matter (DM). Other than traditional studies of DM including direct detection, indirect detection and collider simulation, in this work we take flavor physics as a complementary approach to investigate the...
2003.05976
Michelangelo Mangano
Michelangelo Mangano
LHC at 10: the physics legacy
8 pages, 6 figures. Published in CERN Courier March/April 2020 p 40, submitted to arXiv with permission
CERN Courier March/April 2020 p 40
null
CERN-TH-2020-030
hep-ph hep-ex hep-th
http://creativecommons.org/licenses/by/4.0/
Ten years into the LHC physics programme, I reflect on the vast amount of extraordinary results that have emerged so far.
[ { "created": "Thu, 12 Mar 2020 19:00:17 GMT", "version": "v1" } ]
2020-03-16
[ [ "Mangano", "Michelangelo", "" ] ]
Ten years into the LHC physics programme, I reflect on the vast amount of extraordinary results that have emerged so far.
1209.3374
Ernest Ma
Ernest Ma (UC Riverside)
Self-Organizing Neutrino Mixing Matrix
7 pages, no figure (expanded discussion)
Phys. Rev. D86, 117301 (2012)
10.1103/PhysRevD.86.117301
UCRHEP-T523 (September 2012)
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A new and novel idea for a predictive neutrino mass matrix is presented, using the non-Abelian discrete symmetry A(4) and the seesaw mechanism with only two heavy neutral fermion singlets. Given the components of the one necessarily massless neutrino eigenstate, the other two massive states are automatically generate...
[ { "created": "Sat, 15 Sep 2012 08:58:27 GMT", "version": "v1" }, { "created": "Tue, 25 Sep 2012 15:11:05 GMT", "version": "v2" } ]
2015-06-11
[ [ "Ma", "Ernest", "", "UC Riverside" ] ]
A new and novel idea for a predictive neutrino mass matrix is presented, using the non-Abelian discrete symmetry A(4) and the seesaw mechanism with only two heavy neutral fermion singlets. Given the components of the one necessarily massless neutrino eigenstate, the other two massive states are automatically generated....
hep-ph/0408181
Kingman Cheung
Kingman Cheung (NTHU)
Summary Report for the $e^- e^-$ session in LCWS 2004
4 pages and 1 figures. Plenary talk given at the International Conference on Linear Colliders, LCWS04, 19-23 April 2004, Paris, France
null
null
null
hep-ph
null
In this talk, I summarize the activities in the $e^- e^-$ session. The consensus is that if the next generation $e^+ e^-$ linear collider wants to include an $e^- e^-$ option, the planning has to include it as early as possible. By doing so the extra cost would be only a small fraction of the total, and of course the...
[ { "created": "Tue, 17 Aug 2004 07:27:34 GMT", "version": "v1" } ]
2007-05-23
[ [ "Cheung", "Kingman", "", "NTHU" ] ]
In this talk, I summarize the activities in the $e^- e^-$ session. The consensus is that if the next generation $e^+ e^-$ linear collider wants to include an $e^- e^-$ option, the planning has to include it as early as possible. By doing so the extra cost would be only a small fraction of the total, and of course the p...
hep-ph/0101334
Koichi Yoshioka
N. Haba, J. Sato, M. Tanimoto and K. Yoshioka
Possible Flavor Mixing Structures of Lepton Mass Matrices
21 pages
Phys.Rev. D64 (2001) 113016
10.1103/PhysRevD.64.113016
null
hep-ph
null
To search for possible textures of lepton mass matrices, we systematically examine flavor mixing structures which can lead to large lepton mixing angles. We find out 37 mixing patterns are consistent with experimental data, taking into account phase factors in the mixing matrices. Only six of the patterns can explain...
[ { "created": "Tue, 30 Jan 2001 14:24:52 GMT", "version": "v1" }, { "created": "Wed, 7 Feb 2001 11:08:43 GMT", "version": "v2" }, { "created": "Mon, 7 May 2001 07:32:49 GMT", "version": "v3" }, { "created": "Fri, 19 Oct 2001 06:06:02 GMT", "version": "v4" } ]
2009-11-07
[ [ "Haba", "N.", "" ], [ "Sato", "J.", "" ], [ "Tanimoto", "M.", "" ], [ "Yoshioka", "K.", "" ] ]
To search for possible textures of lepton mass matrices, we systematically examine flavor mixing structures which can lead to large lepton mixing angles. We find out 37 mixing patterns are consistent with experimental data, taking into account phase factors in the mixing matrices. Only six of the patterns can explain t...
hep-ph/9401294
Adrian Signer
Zoltan Kunszt, Adrian Signer and Zoltan Trocsanyi
Singular terms of helicity amplitudes at one-loop in QCD and the soft limit of the cross sections of multi-parton processes
Latex,13 pages, ETH-TH/94-3
Nucl.Phys. B420 (1994) 550-564
10.1016/0550-3213(94)90077-9
null
hep-ph
null
We describe a general method that enables us to obtain all the singular terms of helicity amplitudes of n-parton processes at one loop. The algorithm uses helicity amplitudes at tree level and simple color algebra. We illustrate the method by calculating the singular part of the one loop helicity amplitudes of all ...
[ { "created": "Thu, 20 Jan 1994 16:18:52 GMT", "version": "v1" } ]
2009-10-28
[ [ "Kunszt", "Zoltan", "" ], [ "Signer", "Adrian", "" ], [ "Trocsanyi", "Zoltan", "" ] ]
We describe a general method that enables us to obtain all the singular terms of helicity amplitudes of n-parton processes at one loop. The algorithm uses helicity amplitudes at tree level and simple color algebra. We illustrate the method by calculating the singular part of the one loop helicity amplitudes of all $ 2\...
1007.1497
Wataru Sakamoto
Masako Hayashi, Tomohiro Inagaki, Wataru Sakamoto
Phase Structure of a Four- and Eight-Fermion Interaction Model at Finite Temperature and Chemical Potential in Arbitrary Dimensions
20 pages, 26 figures; revised argument and added reference for section 5
Int.J.Mod.Phys.A25:4757-4774,2010
10.1142/S0217751X10050627
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The phase structure of a four- and eight-fermion interaction model is investigated at finite temperature and chemical potential in arbitrary space-time dimensions, $2\leq D<4$. The effective potential and the gap equation are calculated in the leading order of the 1/N expansion. If the first order phase transition ta...
[ { "created": "Fri, 9 Jul 2010 02:28:25 GMT", "version": "v1" }, { "created": "Tue, 27 Jul 2010 05:48:53 GMT", "version": "v2" } ]
2011-03-14
[ [ "Hayashi", "Masako", "" ], [ "Inagaki", "Tomohiro", "" ], [ "Sakamoto", "Wataru", "" ] ]
The phase structure of a four- and eight-fermion interaction model is investigated at finite temperature and chemical potential in arbitrary space-time dimensions, $2\leq D<4$. The effective potential and the gap equation are calculated in the leading order of the 1/N expansion. If the first order phase transition take...
1409.6517
Juan Jose Sanz-Cillero
J.J. Sanz-Cillero
Electroweak chiral Lagrangians and the Higgs properties at the one-loop level
6 pages, 2 eps figures. Proceedings of the 7th Edition of the International Workshop on Quantum Chromodynamics -QCD@Work: Interantional Workshop on QCD, Theory and Experiment- (16-19 June 2014, Giovinazzo, Italy)
null
10.1051/epjconf/20148000053
IFT-UAM/CSIC-14-096, FTUAM-14-37
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In these proceedings we explore the use of (non-linear) electroweak chiral Lagrangians for the description of possible beyond the Standard Model strong dynamics in the electroweak sector. Experimentally one observes an approximate electroweak symmetry breaking pattern $SU(2)_L\times SU(2)_R/SU(2)_{L+R}$. Quantum Chro...
[ { "created": "Tue, 23 Sep 2014 12:48:37 GMT", "version": "v1" } ]
2015-06-23
[ [ "Sanz-Cillero", "J. J.", "" ] ]
In these proceedings we explore the use of (non-linear) electroweak chiral Lagrangians for the description of possible beyond the Standard Model strong dynamics in the electroweak sector. Experimentally one observes an approximate electroweak symmetry breaking pattern $SU(2)_L\times SU(2)_R/SU(2)_{L+R}$. Quantum Chromo...
1812.07187
Murat Koksal
V. Ari, E. Gurkanli, A. A. Billur and M. Koksal
Model independent study for the anomalous quartic $WW\gamma\gamma$ couplings at Future Electron-Proton Colliders
28 Pages, 15 Figures and 7 Tables
null
10.1016/j.nuclphysb.2020.115102
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Large Hadron Electron Collider and the Future Circular Collider-hadron electron with high center-of-mass energy and luminosity allow to better understand the Standard Model and to examine new physics beyond the Standard Model in the electroweak sector. Multi-boson processes permit for a measurement of the gauge b...
[ { "created": "Tue, 18 Dec 2018 06:14:57 GMT", "version": "v1" }, { "created": "Sat, 8 Aug 2020 11:25:17 GMT", "version": "v2" } ]
2020-08-11
[ [ "Ari", "V.", "" ], [ "Gurkanli", "E.", "" ], [ "Billur", "A. A.", "" ], [ "Koksal", "M.", "" ] ]
The Large Hadron Electron Collider and the Future Circular Collider-hadron electron with high center-of-mass energy and luminosity allow to better understand the Standard Model and to examine new physics beyond the Standard Model in the electroweak sector. Multi-boson processes permit for a measurement of the gauge bos...
2209.03538
M. Gabriel Santiago
Yuri V. Kovchegov, M. Gabriel Santiago
T-odd Leading-Twist Quark TMDs at Small $x$
50 pages, 5 figures
null
10.1007/JHEP11(2022)098
null
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the small-$x$ asymptotics of the flavor non-singlet T-odd leading-twist quark transverse momentum dependent parton distributions (TMDs), the Sivers and Boer-Mulders functions. While the leading eikonal small-$x$ asymptotics of the quark Sivers function is given by the spin-dependent odderon, we are intereste...
[ { "created": "Thu, 8 Sep 2022 02:36:54 GMT", "version": "v1" } ]
2022-11-30
[ [ "Kovchegov", "Yuri V.", "" ], [ "Santiago", "M. Gabriel", "" ] ]
We study the small-$x$ asymptotics of the flavor non-singlet T-odd leading-twist quark transverse momentum dependent parton distributions (TMDs), the Sivers and Boer-Mulders functions. While the leading eikonal small-$x$ asymptotics of the quark Sivers function is given by the spin-dependent odderon, we are interested ...
hep-ph/0404238
Otto Kong
Otto C.W. Kong (Nat'l Central U., Taiwan)
On Extended Electroweak Symmetries
1+8 pages of latex with ws-procs9x6.cls; talk presented at Coral Gables Conference 2003
Int.J.Mod.Phys. A20 (2005) 1295-1302
10.1142/S0217751X05024195
NCU-HEP-k016
hep-ph
null
We discuss extensions of the Standard Model through extending the electroweak gauge symmetry. An extended electroweak symmetry requires a list of extra fermionic and scalar states. The former is necessary to maintain cancellation of gauge anomalies, and largely fixed by the symmetry embedding itself. The latter is us...
[ { "created": "Tue, 27 Apr 2004 12:56:11 GMT", "version": "v1" } ]
2009-11-10
[ [ "Kong", "Otto C. W.", "", "Nat'l Central U., Taiwan" ] ]
We discuss extensions of the Standard Model through extending the electroweak gauge symmetry. An extended electroweak symmetry requires a list of extra fermionic and scalar states. The former is necessary to maintain cancellation of gauge anomalies, and largely fixed by the symmetry embedding itself. The latter is usua...
1903.05116
Joachim Brod
Joachim Brod, Martin Gorbahn
The Z Penguin in Generic Extensions of the Standard Model
28 pages, 2 figures; improved discussion, version as published in JHEP
JHEP 1909 (2019) 027
10.1007/JHEP09(2019)027
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Precision flavour observables play an important role in the interpretation of results at the LHC in terms of models of new physics. We present the result for the one-loop Z penguin in generic extensions of the standard model which exhibit exact perturbative unitarity. We use Slavnov-Taylor identities to study the imp...
[ { "created": "Tue, 12 Mar 2019 18:04:02 GMT", "version": "v1" }, { "created": "Thu, 15 Apr 2021 21:45:14 GMT", "version": "v2" } ]
2021-04-19
[ [ "Brod", "Joachim", "" ], [ "Gorbahn", "Martin", "" ] ]
Precision flavour observables play an important role in the interpretation of results at the LHC in terms of models of new physics. We present the result for the one-loop Z penguin in generic extensions of the standard model which exhibit exact perturbative unitarity. We use Slavnov-Taylor identities to study the impli...
hep-ph/9605347
Felice Pisano
F. Pisano (IFT - S.Paulo - Brazil), J.A. Silva-Sobrinho (IFT -S.Paulo - Brazil) and M.D. Tonasse (UERJ - Rio de Janeiro - Brazil)
Neutrinos and Electromagnetic Gauge Invariance
10 pages, Revtex 3.0, no figures
Phys.Lett. B388 (1996) 338-345
10.1016/S0370-2693(96)01250-6
IFT-P.005/96
hep-ph
null
It is discussed a recently proposed connection among U(1)$_{\rm em}$ electromagnetic gauge invariance and the nature of the neutrino mass terms in the framework of $\mbox {SU(3)}_C\otimes G_W \otimes {\mbox U(1)}_N$, $G_W$ = SU(3)$_L$, extensions of the Standard Model. The impossibility of that connection, also in th...
[ { "created": "Fri, 17 May 1996 20:12:58 GMT", "version": "v1" } ]
2009-10-28
[ [ "Pisano", "F.", "", "IFT - S.Paulo - Brazil" ], [ "Silva-Sobrinho", "J. A.", "", "IFT -S.Paulo\n - Brazil" ], [ "Tonasse", "M. D.", "", "UERJ - Rio de Janeiro - Brazil" ] ]
It is discussed a recently proposed connection among U(1)$_{\rm em}$ electromagnetic gauge invariance and the nature of the neutrino mass terms in the framework of $\mbox {SU(3)}_C\otimes G_W \otimes {\mbox U(1)}_N$, $G_W$ = SU(3)$_L$, extensions of the Standard Model. The impossibility of that connection, also in the ...
hep-ph/9806390
Christian Weiss
M.V. Polyakov and C. Weiss
Two-pion light-cone distribution amplitudes from the instanton vacuum
13 pages, LaTeX, 4 figures included using epsf
Phys.Rev.D59:091502,1999
10.1103/PhysRevD.59.091502
RUB-TPII-7/98
hep-ph
null
We calculate the two-pion light-cone distribution amplitudes in the effective low-energy theory based on the instanton vacuum. These generalized distribution amplitudes describe the soft (non-perturbative) part of the process $\gamma^*\gamma \to \pi\pi$ in the region where the c.m. energy is much smaller than the pho...
[ { "created": "Tue, 16 Jun 1998 23:32:36 GMT", "version": "v1" } ]
2009-12-30
[ [ "Polyakov", "M. V.", "" ], [ "Weiss", "C.", "" ] ]
We calculate the two-pion light-cone distribution amplitudes in the effective low-energy theory based on the instanton vacuum. These generalized distribution amplitudes describe the soft (non-perturbative) part of the process $\gamma^*\gamma \to \pi\pi$ in the region where the c.m. energy is much smaller than the photo...
0912.0351
Fu-Guang Cao
H. Chen, F.-G. Cao, A. I. Signal
Strange sea distributions of the nucleon
version published in J. Phys. G, 14 pages, 3 figures
J.Phys.G37:105006,2010
10.1088/0954-3899/37/10/105006
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The strange and antistrange quark distributions of the nucleon are less constrained by experimental data than the non-strange quark sea. The combination of light quark sea distributions, $\Delta(x)=\dbar(x)+\ubar(x)-s(x)-\sbar(x)$, originates mainly from non-perturbative processes and can be calculated using non-pert...
[ { "created": "Wed, 2 Dec 2009 07:29:20 GMT", "version": "v1" }, { "created": "Tue, 24 Aug 2010 23:16:37 GMT", "version": "v2" } ]
2010-08-26
[ [ "Chen", "H.", "" ], [ "Cao", "F. -G.", "" ], [ "Signal", "A. I.", "" ] ]
The strange and antistrange quark distributions of the nucleon are less constrained by experimental data than the non-strange quark sea. The combination of light quark sea distributions, $\Delta(x)=\dbar(x)+\ubar(x)-s(x)-\sbar(x)$, originates mainly from non-perturbative processes and can be calculated using non-pertur...
1411.5584
Qian Wang
Feng-Kun Guo, Christoph Hanhart, Qian Wang, Qiang Zhao
Could the near-threshold $XYZ$ states be simply kinematic effects?
Accepted by Phys. Rev. D as a rapid communication
Phys. Rev. D 91, 051504 (2015)
10.1103/PhysRevD.91.051504
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We demonstrate that the spectacular structures discovered recently in various experiments and named as $X$, $Y$ and $Z$ states cannot be purely kinematic effects. Their existence necessarily calls for nearby poles in the $S$--matrix and they therefore qualify as states. We propose a way to distinguishing kinematic cu...
[ { "created": "Thu, 20 Nov 2014 15:58:06 GMT", "version": "v1" }, { "created": "Wed, 18 Mar 2015 19:34:59 GMT", "version": "v2" } ]
2015-04-01
[ [ "Guo", "Feng-Kun", "" ], [ "Hanhart", "Christoph", "" ], [ "Wang", "Qian", "" ], [ "Zhao", "Qiang", "" ] ]
We demonstrate that the spectacular structures discovered recently in various experiments and named as $X$, $Y$ and $Z$ states cannot be purely kinematic effects. Their existence necessarily calls for nearby poles in the $S$--matrix and they therefore qualify as states. We propose a way to distinguishing kinematic cusp...
hep-ph/0301005
Jiri Novotny
M. Kolesar, J. Novotny
The eta->pi^0 pi^0 gamma gamma decay in generalized chiral perturbation theory
7 pages, 6 figures, Talk presented at Int. Conf. Hadron Structure '02, Herlany, Slovakia, September 22-27, 2002
null
null
null
hep-ph
null
Calculations of eta->pi^0 pi^0 gamma gamma decay in generalized chiral perturbation theory are presented. Tree level and some of next-to-leading corrections are involved. Sensitivity to the deviations from the standard chiral perturbation theory is discussed.
[ { "created": "Thu, 2 Jan 2003 14:47:38 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kolesar", "M.", "" ], [ "Novotny", "J.", "" ] ]
Calculations of eta->pi^0 pi^0 gamma gamma decay in generalized chiral perturbation theory are presented. Tree level and some of next-to-leading corrections are involved. Sensitivity to the deviations from the standard chiral perturbation theory is discussed.
hep-ph/0607193
Bruno Machet
Quentin Duret (LPTHE), Bruno Machet (LPTHE)
The Cabibbo angle : an algebraic calculation
The Cabibbo angle can be positive or negative, which was overlooked in the first version. Minor addenda
null
null
null
hep-ph hep-th
null
We show that the Cabibbo angle theta\_c satisfies the relation tan(2 theta\_c)=-+/- 1/2 when universality for diagonal neutral currents of mass eigenstates is satisfied at the same level of accuracy as the absence of their off-diagonal counterparts. The predicted value is cos theta\_c \approx 0.9732, only 7/10000 awa...
[ { "created": "Tue, 18 Jul 2006 05:15:55 GMT", "version": "v1" }, { "created": "Mon, 11 Sep 2006 08:33:30 GMT", "version": "v2" } ]
2007-05-23
[ [ "Duret", "Quentin", "", "LPTHE" ], [ "Machet", "Bruno", "", "LPTHE" ] ]
We show that the Cabibbo angle theta\_c satisfies the relation tan(2 theta\_c)=-+/- 1/2 when universality for diagonal neutral currents of mass eigenstates is satisfied at the same level of accuracy as the absence of their off-diagonal counterparts. The predicted value is cos theta\_c \approx 0.9732, only 7/10000 away ...
hep-ph/9906305
Andre Peshier
A. Peshier, B. Kampfer, G. Soff
Thermodynamics of Deconfined Matter at Finite Chemical Potential in a Quasiparticle Description
4 pages REVTEX, 3 eps figures
null
null
null
hep-ph
null
An effective quasiparticle description of the thermodynamics of deconfined matter, compatible with both finite-temperature lattice data and the perturbative limit, is generalized to finite chemical potential. Within this approach, the available 4-flavor lattice equation of state is extended to finite baryon density, ...
[ { "created": "Wed, 9 Jun 1999 14:42:47 GMT", "version": "v1" } ]
2007-05-23
[ [ "Peshier", "A.", "" ], [ "Kampfer", "B.", "" ], [ "Soff", "G.", "" ] ]
An effective quasiparticle description of the thermodynamics of deconfined matter, compatible with both finite-temperature lattice data and the perturbative limit, is generalized to finite chemical potential. Within this approach, the available 4-flavor lattice equation of state is extended to finite baryon density, an...
1601.04954
Xiao-Fang Han
Xiao-Fang Han, Lei Wang, Jin Min Yang
An extension of two-Higgs-doublet model and the excesses of 750 GeV diphoton, muon g-2 and $h\to\mu\tau$
18 pages, 3 figures and references added
null
10.1016/j.physletb.2016.04.036
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we simultaneously explain the excesses of the 750 GeV diphoton, muon g-2 and $h\to \mu\tau$ in an extension of the two-Higgs-doublet model (2HDM) with additional vector-like fermions and a CP-odd scalar singlet ($P$) which is identified as the 750 GeV resonance. This 750 GeV resonance has a mixing with ...
[ { "created": "Tue, 19 Jan 2016 15:32:18 GMT", "version": "v1" }, { "created": "Thu, 21 Jan 2016 15:24:19 GMT", "version": "v2" } ]
2016-05-25
[ [ "Han", "Xiao-Fang", "" ], [ "Wang", "Lei", "" ], [ "Yang", "Jin Min", "" ] ]
In this paper we simultaneously explain the excesses of the 750 GeV diphoton, muon g-2 and $h\to \mu\tau$ in an extension of the two-Higgs-doublet model (2HDM) with additional vector-like fermions and a CP-odd scalar singlet ($P$) which is identified as the 750 GeV resonance. This 750 GeV resonance has a mixing with th...
0707.1723
Pomita Ghoshal
Raj Gandhi, Pomita Ghoshal, Srubabati Goswami, Poonam Mehta, S Uma Sankar, Shashank Shalgar
Mass Hierarchy Determination via future Atmospheric Neutrino Detectors
36 pages, 13 figures, revised version accepted in Physical Review D
Phys.Rev.D76:073012,2007
10.1103/PhysRevD.76.073012
null
hep-ph hep-ex
null
We study the problem of determination of the sign of Delta m^2_{31}, or the neutrino mass hierarchy, through observations of atmospheric neutrinos in future detectors. We consider two proposed detector types : (a) Megaton sized water Cerenkov detectors, which can measure the survival rates of nu_\mu + \bar{\nu}_\mu...
[ { "created": "Thu, 12 Jul 2007 00:32:01 GMT", "version": "v1" }, { "created": "Thu, 6 Sep 2007 13:02:31 GMT", "version": "v2" } ]
2008-11-26
[ [ "Gandhi", "Raj", "" ], [ "Ghoshal", "Pomita", "" ], [ "Goswami", "Srubabati", "" ], [ "Mehta", "Poonam", "" ], [ "Sankar", "S Uma", "" ], [ "Shalgar", "Shashank", "" ] ]
We study the problem of determination of the sign of Delta m^2_{31}, or the neutrino mass hierarchy, through observations of atmospheric neutrinos in future detectors. We consider two proposed detector types : (a) Megaton sized water Cerenkov detectors, which can measure the survival rates of nu_\mu + \bar{\nu}_\mu and...
1512.09318
Peter Petreczky
Swagato Mukherjee, P. Petreczky and S. Sharma
Charm hadrons above $T_c$
Talk presented at Quark Matter 2015, LaTeX, 4 pages, uses nupha_ecrc.sty, ecrc.sty
null
10.1016/j.nuclphysa.2016.02.017
null
hep-ph hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
From the analysis of the lattice data on fluctuations and correlations of charm we conclude that open charm meson and baryon-like excitations exist above the QCD crossover temperature, and in fact are the dominant degrees of freedom for thermodynamics in the vicinity of the transition. Charm quarks become the dominan...
[ { "created": "Thu, 31 Dec 2015 16:22:51 GMT", "version": "v1" } ]
2016-11-23
[ [ "Mukherjee", "Swagato", "" ], [ "Petreczky", "P.", "" ], [ "Sharma", "S.", "" ] ]
From the analysis of the lattice data on fluctuations and correlations of charm we conclude that open charm meson and baryon-like excitations exist above the QCD crossover temperature, and in fact are the dominant degrees of freedom for thermodynamics in the vicinity of the transition. Charm quarks become the dominant ...
hep-ph/0105329
Adam Szczepaniak
Adam P. Szczepaniak and Maciej Swat
Role of Photoproduction in Exotic Meson Searches
10 pages, 2 figures inculded
Phys.Lett. B516 (2001) 72-76
10.1016/S0370-2693(01)00905-4
null
hep-ph
null
We discuss two production mechanisms of the $J^{PC}=1^{-+}$ exotic meson, hadroproduction, using pion beams and photoproduction. We show that the ratio of exotic to non-exotic, in particular the $a_2$, meson production cross sections is expected to be by a factor of 5 to 10 larger, in photoproduction then in hadrop...
[ { "created": "Thu, 31 May 2001 02:07:31 GMT", "version": "v1" } ]
2009-11-07
[ [ "Szczepaniak", "Adam P.", "" ], [ "Swat", "Maciej", "" ] ]
We discuss two production mechanisms of the $J^{PC}=1^{-+}$ exotic meson, hadroproduction, using pion beams and photoproduction. We show that the ratio of exotic to non-exotic, in particular the $a_2$, meson production cross sections is expected to be by a factor of 5 to 10 larger, in photoproduction then in hadroprodu...
hep-ph/9308279
Marcelo Gleiser
Marcelo Gleiser
Pseudo-Stable Bubbles
10 pages, LaTeX (uses revtex 3.0), 4 figures (postscript files of figs.1 and 2 appended starting on line 497), report DART-HEP-93/05
Phys.Rev. D49 (1994) 2978-2981
10.1103/PhysRevD.49.2978
null
hep-ph
null
The evolution of spherically symmetric unstable scalar field configurations (``bubbles'') is examined for both symmetric (SDWP) and asymmetric (ADWP) double-well potentials. Bubbles with initial static energies $E_0\la E_{{\rm crit}}$, where $E_{{\rm crit}}$ is some critical value, shrink in a time scale determined b...
[ { "created": "Mon, 16 Aug 1993 17:36:36 GMT", "version": "v1" } ]
2009-10-22
[ [ "Gleiser", "Marcelo", "" ] ]
The evolution of spherically symmetric unstable scalar field configurations (``bubbles'') is examined for both symmetric (SDWP) and asymmetric (ADWP) double-well potentials. Bubbles with initial static energies $E_0\la E_{{\rm crit}}$, where $E_{{\rm crit}}$ is some critical value, shrink in a time scale determined by ...
2009.14209
Imre Majer
R. Gauld, A. Gehrmann-De Ridder, E. W. N. Glover, A. Huss, and I. Majer
Precise predictions for $\mathrm{WH}$+jet production at the LHC
6 pages, 2 figures, 1 table
null
10.1016/j.physletb.2021.136335
NIKHEF 2020-034, ZU-TH 34/20, IPPP/20/45, CERN-TH-2020-163
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present precise predictions for the production of a Higgs boson in association with a hadronic jet and a $\mathrm{W}$ boson at hadron colliders. The behaviour of QCD corrections are studied for fiducial cross sections and distributions of the charged gauge boson and jet-related observables. The inclusive process (...
[ { "created": "Tue, 29 Sep 2020 18:00:02 GMT", "version": "v1" } ]
2021-06-02
[ [ "Gauld", "R.", "" ], [ "Ridder", "A. Gehrmann-De", "" ], [ "Glover", "E. W. N.", "" ], [ "Huss", "A.", "" ], [ "Majer", "I.", "" ] ]
We present precise predictions for the production of a Higgs boson in association with a hadronic jet and a $\mathrm{W}$ boson at hadron colliders. The behaviour of QCD corrections are studied for fiducial cross sections and distributions of the charged gauge boson and jet-related observables. The inclusive process (at...
1510.00799
Kei Yagyu
Hiroshi Okada, Yuta Orikasa, Kei Yagyu
Higgs Triplet Model with Classically Conformal Invariance
References added
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss an extension of the minimal Higgs triplet model with a classically conformal invariance and with a gauged $U(1)_{B-L}$ symmetry. In our scenario, tiny masses of neutrinos are generated by a hybrid contribution from the type-I and type-II seesaw mechanisms. The shape of the Higgs potential at low energies i...
[ { "created": "Sat, 3 Oct 2015 09:21:01 GMT", "version": "v1" }, { "created": "Tue, 13 Oct 2015 17:20:40 GMT", "version": "v2" } ]
2015-10-14
[ [ "Okada", "Hiroshi", "" ], [ "Orikasa", "Yuta", "" ], [ "Yagyu", "Kei", "" ] ]
We discuss an extension of the minimal Higgs triplet model with a classically conformal invariance and with a gauged $U(1)_{B-L}$ symmetry. In our scenario, tiny masses of neutrinos are generated by a hybrid contribution from the type-I and type-II seesaw mechanisms. The shape of the Higgs potential at low energies is ...
hep-ph/0610214
Adeola Adeluyi
A. Adeluyi, G. Fai
Mass dependence of nuclear shadowing at small Bjorken-x from diffractive scattering
To be published in Phys. Rev. C
Phys.Rev.C74:054904,2006
10.1103/PhysRevC.74.054904
KSUCNR-204-07
hep-ph
null
We calculate the nuclear shadowing ratio for a wide range of nuclei at small Bjorken-x in the framework of Gribov theory. The coherent contribution to the (virtual) photon-nucleon cross section is obtained in terms of the diffractive dissociation cross section. Information on diffraction from FNAL and HERA is used. O...
[ { "created": "Tue, 17 Oct 2006 15:43:44 GMT", "version": "v1" } ]
2008-11-26
[ [ "Adeluyi", "A.", "" ], [ "Fai", "G.", "" ] ]
We calculate the nuclear shadowing ratio for a wide range of nuclei at small Bjorken-x in the framework of Gribov theory. The coherent contribution to the (virtual) photon-nucleon cross section is obtained in terms of the diffractive dissociation cross section. Information on diffraction from FNAL and HERA is used. Our...
hep-ph/0310240
Hans-Werner Hammer
H.-W. Hammer (Bonn U.), D. Drechsel (Mainz U.), and Ulf-G. Mei{\ss}ner (Bonn U. and FZ J\"ulich)
On the pion cloud of the nucleon
7 pages, latex, 3 ps figures, minor changes
Phys.Lett. B586 (2004) 291-296
10.1016/j.physletb.2003.12.073
HISKP-TH-03/21
hep-ph nucl-th
null
We evaluate the two--pion contribution to the nucleon electromagnetic form factors by use of dispersion analysis and chiral perturbation theory. After subtraction of the rho--meson component, we calculate the distributions of charge and magnetization in coordinate space, which can be interpreted as the effects of the...
[ { "created": "Mon, 20 Oct 2003 15:55:01 GMT", "version": "v1" }, { "created": "Fri, 19 Dec 2003 14:12:27 GMT", "version": "v2" } ]
2009-11-10
[ [ "Hammer", "H. -W.", "", "Bonn U." ], [ "Drechsel", "D.", "", "Mainz U." ], [ "Meißner", "Ulf-G.", "", "Bonn U. and FZ Jülich" ] ]
We evaluate the two--pion contribution to the nucleon electromagnetic form factors by use of dispersion analysis and chiral perturbation theory. After subtraction of the rho--meson component, we calculate the distributions of charge and magnetization in coordinate space, which can be interpreted as the effects of the p...
hep-ph/0410107
Federica Bazzocchi
F. Bazzocchi, M. Fabbrichesi
Flavor and electroweak symmetry breaking at the TeV scale
null
Nucl.Phys. B715 (2005) 372-412
10.1016/j.nuclphysb.2005.03.004
null
hep-ph
null
We present a unified picture of flavor and electroweak symmetry breaking at the TeV scale. Flavor and Higgs bosons arise as pseudo-Goldstone modes in a nonlinear sigma model. Explicit collective symmetry breaking yields stable vacuum expectation values and masses protected at one loop by the little-Higgs mechanism. T...
[ { "created": "Thu, 7 Oct 2004 14:01:24 GMT", "version": "v1" } ]
2009-11-10
[ [ "Bazzocchi", "F.", "" ], [ "Fabbrichesi", "M.", "" ] ]
We present a unified picture of flavor and electroweak symmetry breaking at the TeV scale. Flavor and Higgs bosons arise as pseudo-Goldstone modes in a nonlinear sigma model. Explicit collective symmetry breaking yields stable vacuum expectation values and masses protected at one loop by the little-Higgs mechanism. The...
2111.04088
Volodymyr Takhistov
Volodymyr Takhistov
Neutrino and Axion Astronomy with Dark Matter Experiments
5 pages, 3 figures, Proceedings of the 17th International Conference on Topics in Astroparticle and Underground Physics (TAUP 2021), 30 August - 3 September 2021, Valencia, Spain - Online
null
10.1088/1742-6596/2156/1/012049
IPMU21-0077
hep-ph astro-ph.CO astro-ph.HE hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Sensitive dark matter (DM) experiments can be well exploited beyond their designated targets, allowing to explore a breadth of physics topics. As we discuss, future large direct DM detection experiments constitute impressive telescopes, complementary to conventional neutrino detectors. This opens a new window into ne...
[ { "created": "Sun, 7 Nov 2021 13:41:52 GMT", "version": "v1" } ]
2022-03-02
[ [ "Takhistov", "Volodymyr", "" ] ]
Sensitive dark matter (DM) experiments can be well exploited beyond their designated targets, allowing to explore a breadth of physics topics. As we discuss, future large direct DM detection experiments constitute impressive telescopes, complementary to conventional neutrino detectors. This opens a new window into neut...
1307.6460
Sonny Mantry
Zhong-Bo Kang, Xiaohui Liu, Sonny Mantry, Jian-Wei Qiu
The 1-Jettiness event shape for DIS with NNLL resummation
To appear in the proceedings of the QCD Evolution Workshop, JLab, May 6th-10th, 2013
Int. J. Mod. Phys. Conf. Ser. 25, 1460041 (2014)
10.1142/S2010194514600416
null
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose the use of 1-jettiness, a global event shape, for exclusive single jet production in lepton-nucleus deep inelastic scattering (DIS). We derive a factorization formula, using the Soft-Collinear Effective Theory, differential in the transverse momentum and rapidity of the jet and the 1-jettiness event shape....
[ { "created": "Wed, 24 Jul 2013 15:38:45 GMT", "version": "v1" } ]
2014-01-13
[ [ "Kang", "Zhong-Bo", "" ], [ "Liu", "Xiaohui", "" ], [ "Mantry", "Sonny", "" ], [ "Qiu", "Jian-Wei", "" ] ]
We propose the use of 1-jettiness, a global event shape, for exclusive single jet production in lepton-nucleus deep inelastic scattering (DIS). We derive a factorization formula, using the Soft-Collinear Effective Theory, differential in the transverse momentum and rapidity of the jet and the 1-jettiness event shape. I...
1612.05194
Kei Yagyu
A. G. Akeroyd, Stefano Moretti, Kei Yagyu, Emine Yildirim
Light charged Higgs boson scenario in 3HDMs
Prepared for proceedings for Charged2016, talk presented by Kei Yagyu
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The measurement of the $B\to X_s\gamma$ process gives important constraints on physics related to charged Higgs bosons ($H^\pm$). In 2-Higgs Doublet Models (2HDMs) with a softly-broken $Z_2$ symmetry, a light $H^\pm$ scenario, in which $H^\pm$ can be produced via the top decay, is possible in two of four types of Yuk...
[ { "created": "Thu, 15 Dec 2016 19:12:23 GMT", "version": "v1" } ]
2016-12-16
[ [ "Akeroyd", "A. G.", "" ], [ "Moretti", "Stefano", "" ], [ "Yagyu", "Kei", "" ], [ "Yildirim", "Emine", "" ] ]
The measurement of the $B\to X_s\gamma$ process gives important constraints on physics related to charged Higgs bosons ($H^\pm$). In 2-Higgs Doublet Models (2HDMs) with a softly-broken $Z_2$ symmetry, a light $H^\pm$ scenario, in which $H^\pm$ can be produced via the top decay, is possible in two of four types of Yukaw...
hep-ph/0404010
Franco Giuliani
F. Giuliani
Model-independent assessment of current direct searches for spin-dependent dark matter
4 pages, 4 figures, revised and accepted for publication on Phys. Rev. Lett
Phys.Rev.Lett.93:161301,2004
10.1103/PhysRevLett.93.161301
null
hep-ph astro-ph
null
I evaluate the current results of spin-dependent weakly interacting massive particle (WIMP) searches within a model-independent framework, showing the most restrictive limits to date derive from the combination of xenon and sodium iodide experiments. The extension of this analysis to the case of positive signal exper...
[ { "created": "Thu, 1 Apr 2004 17:20:16 GMT", "version": "v1" }, { "created": "Mon, 13 Sep 2004 14:24:39 GMT", "version": "v2" } ]
2008-11-26
[ [ "Giuliani", "F.", "" ] ]
I evaluate the current results of spin-dependent weakly interacting massive particle (WIMP) searches within a model-independent framework, showing the most restrictive limits to date derive from the combination of xenon and sodium iodide experiments. The extension of this analysis to the case of positive signal experim...
hep-ph/0002082
Costas Papadopoulos
Aggeliki Kanaki and Costas G. Papadopoulos
HELAC: a package to compute electroweak helicity amplitudes
14 pages
Comput.Phys.Commun. 132 (2000) 306-315
10.1016/S0010-4655(00)00151-X
DEMO-HEP-2000/01
hep-ph
null
HELAC is a FORTRAN based package that is able to compute efficiently helicity amplitudes for arbitrary scattering processes within the standard electroweak theory. The algorithm exploits the virtues of the Dyson-Schwinger equations as compared to the traditional Feynman graph approach. All electroweak vertices are in...
[ { "created": "Tue, 8 Feb 2000 09:27:06 GMT", "version": "v1" }, { "created": "Wed, 9 Feb 2000 07:54:24 GMT", "version": "v2" } ]
2009-10-31
[ [ "Kanaki", "Aggeliki", "" ], [ "Papadopoulos", "Costas G.", "" ] ]
HELAC is a FORTRAN based package that is able to compute efficiently helicity amplitudes for arbitrary scattering processes within the standard electroweak theory. The algorithm exploits the virtues of the Dyson-Schwinger equations as compared to the traditional Feynman graph approach. All electroweak vertices are incl...
hep-ph/0206166
Ed Stoeffhaas
M.M. Block and G. Pancheri
Forward Elastic Scattering of Light on Light, \gamma+\gamma\to\gamma+\gamma
5 pages, Latex2e, 2 postscript figures, uses epsfig.sty
Eur.Phys.J.C25:287-289,2002
10.1007/s10052-002-1019-6
NUHEP 1001
hep-ph
null
The forward elastic scattering of light on light, {\em i.e.,} the reaction $\gamma+\gamma \to \gamma+\gamma$ in the forward direction, is analyzed utilizing real analytic amplitudes. We calculate $\rho_{\gamma \gamma}$, the ratio of the real to the imaginary portion of the forward scattering amplitude, by fitting the...
[ { "created": "Tue, 18 Jun 2002 20:17:37 GMT", "version": "v1" } ]
2009-01-07
[ [ "Block", "M. M.", "" ], [ "Pancheri", "G.", "" ] ]
The forward elastic scattering of light on light, {\em i.e.,} the reaction $\gamma+\gamma \to \gamma+\gamma$ in the forward direction, is analyzed utilizing real analytic amplitudes. We calculate $\rho_{\gamma \gamma}$, the ratio of the real to the imaginary portion of the forward scattering amplitude, by fitting the t...
hep-ph/0309290
Yili Wang
Yili Wang
Chargino Contributions in $B \to \phi K_S$ Asymmetry
null
Phys.Rev. D69 (2004) 054001
10.1103/PhysRevD.69.054001
null
hep-ph
null
CP asymmetry in $B \to \phi K_S$ decay is studied in a special context of supersymmetry theories, in which the charginos play an important role. We find that in addition to the gluino, chargino can also make large contributions to CP asymmetry in $B \to \phi K_S$ decay. After considering the constraints from $B \to J...
[ { "created": "Thu, 25 Sep 2003 15:52:32 GMT", "version": "v1" }, { "created": "Sat, 1 Nov 2003 23:23:56 GMT", "version": "v2" } ]
2009-11-10
[ [ "Wang", "Yili", "" ] ]
CP asymmetry in $B \to \phi K_S$ decay is studied in a special context of supersymmetry theories, in which the charginos play an important role. We find that in addition to the gluino, chargino can also make large contributions to CP asymmetry in $B \to \phi K_S$ decay. After considering the constraints from $B \to J/p...
1708.08233
Jiri Hosek
Jiri Hosek and J.Adam, Jr
On the Origin of Lepton and Quark Masses
6 pages
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Gauging the flavor (family, generation, horizontal) index of the chiral fermion fields of the Standard model, for anomaly freedom extended by three sterile right-handed neutrino fields, results in asymptotically free, {\it bona fide} nonconfining $SU(3)_f$ quantum flavor dynamics. Approximate nonperturbative strong-c...
[ { "created": "Mon, 28 Aug 2017 08:26:48 GMT", "version": "v1" } ]
2017-08-29
[ [ "Hosek", "Jiri", "" ], [ "Adam,", "J.", "Jr" ] ]
Gauging the flavor (family, generation, horizontal) index of the chiral fermion fields of the Standard model, for anomaly freedom extended by three sterile right-handed neutrino fields, results in asymptotically free, {\it bona fide} nonconfining $SU(3)_f$ quantum flavor dynamics. Approximate nonperturbative strong-cou...
2310.03463
Harleen Dahiya Dr.
Shubham Sharma and Harleen Dahiya
Exploring twist-4 chiral-even GPDs in the light-front quark-diquark model
27 pages, 6 figures and 2 tables
Nucl. Phys. B, 1002, 116522 (2024)
10.1016/j.nuclphysb.2024.116522
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, we delve into the realm of quantum chromodynamics (QCD) by calculating twist-4 chiral-even generalized parton distributions (GPDs), within the context of the light-front quark-diquark model (LFQDM), focusing specifically on the intriguing case of zero skewness. To shed light on the behavior of twist-4 c...
[ { "created": "Thu, 5 Oct 2023 11:20:44 GMT", "version": "v1" } ]
2024-05-02
[ [ "Sharma", "Shubham", "" ], [ "Dahiya", "Harleen", "" ] ]
In this work, we delve into the realm of quantum chromodynamics (QCD) by calculating twist-4 chiral-even generalized parton distributions (GPDs), within the context of the light-front quark-diquark model (LFQDM), focusing specifically on the intriguing case of zero skewness. To shed light on the behavior of twist-4 chi...
hep-ph/9910427
Marc Vanderhaeghen
Barry R. Holstein, D. Drechsel, B. Pasquini, M. Vanderhaeghen
Higher Order Polarizabilities of the Proton
18 pages, revised version with one reference added
Phys.Rev. C61 (2000) 034316
10.1103/PhysRevC.61.034316
null
hep-ph
null
Compton scattering results are used to probe proton structure via measurement of higher order polarizabilities. Values for $\alpha_{E2}^p,\beta_{E2}^p,\alpha_{E\nu}^p,$ $\beta_{E\nu}^p$ determined via dispersion relations are compared to predictions based upon chiral symmetry and from the constituent quark model. Ext...
[ { "created": "Thu, 21 Oct 1999 09:47:28 GMT", "version": "v1" }, { "created": "Tue, 26 Oct 1999 17:51:37 GMT", "version": "v2" } ]
2016-09-06
[ [ "Holstein", "Barry R.", "" ], [ "Drechsel", "D.", "" ], [ "Pasquini", "B.", "" ], [ "Vanderhaeghen", "M.", "" ] ]
Compton scattering results are used to probe proton structure via measurement of higher order polarizabilities. Values for $\alpha_{E2}^p,\beta_{E2}^p,\alpha_{E\nu}^p,$ $\beta_{E\nu}^p$ determined via dispersion relations are compared to predictions based upon chiral symmetry and from the constituent quark model. Exten...
hep-ph/9907435
Evgeny Akhmedov
E. Kh. Akhmedov (IST, Lisbon and Kurchatov Inst., Moscow)
Parametric resonance in neutrino oscillations in matter
LaTeX, 20 pages, 8 figures, requires epsfig. Invited review article to be published in the special issue of Pramana dedicated to neutrino physics
Pramana 54:47-63,2000
null
FISIST/12-99/CFIF
hep-ph astro-ph hep-ex
null
Neutrino oscillations in matter can exhibit a specific resonance enhancement -- parametric resonance, which is different from the MSW resonance. Oscillations of atmospheric and solar neutrinos inside the earth can undergo parametric enhancement when neutrino trajectories cross the core of the earth. In this paper we ...
[ { "created": "Tue, 20 Jul 1999 17:48:08 GMT", "version": "v1" } ]
2009-06-19
[ [ "Akhmedov", "E. Kh.", "", "IST, Lisbon and Kurchatov Inst., Moscow" ] ]
Neutrino oscillations in matter can exhibit a specific resonance enhancement -- parametric resonance, which is different from the MSW resonance. Oscillations of atmospheric and solar neutrinos inside the earth can undergo parametric enhancement when neutrino trajectories cross the core of the earth. In this paper we re...
1307.7700
Antonio Pich
Antonio Pich
The Physics of the Higgs-like Boson
Invited talk at the LHCP 2013 Conference (Barcelona, Spain, 13-18 May 2013). 6 pages, 8 figures
null
10.1051/epjconf/20136002006
IFIC/13-51, FTUV/13-0729
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The present knowledge on the Higgs-like boson discovered at the LHC is summarized. The data accumulated so far are consistent with the Standard Model predictions and put interesting constraints on alternative scenarios of electroweak symmetry breaking. The measured couplings to gauge bosons and third-generation fermi...
[ { "created": "Mon, 29 Jul 2013 19:45:01 GMT", "version": "v1" } ]
2015-06-16
[ [ "Pich", "Antonio", "" ] ]
The present knowledge on the Higgs-like boson discovered at the LHC is summarized. The data accumulated so far are consistent with the Standard Model predictions and put interesting constraints on alternative scenarios of electroweak symmetry breaking. The measured couplings to gauge bosons and third-generation fermion...
hep-ph/0512033
Erik Lundstrom
E. Lundstrom
Detection of elastic photon-photon scattering through four-wave coupling
MSc thesis. 70 pages, 8 figures. Including appendix with the geometric factors referred to in hep-ph/0510076
null
null
null
hep-ph
null
According to the theory of quantum electrodynamics, photon-photon scattering can take place via exchange of virtual electron-positron pairs. Effectively, the interaction can be formulated in terms of non-linear corrections to Maxwell's equations, and hence may be treated by classical non-linear electrodynamics. Due t...
[ { "created": "Fri, 2 Dec 2005 13:32:42 GMT", "version": "v1" } ]
2007-05-23
[ [ "Lundstrom", "E.", "" ] ]
According to the theory of quantum electrodynamics, photon-photon scattering can take place via exchange of virtual electron-positron pairs. Effectively, the interaction can be formulated in terms of non-linear corrections to Maxwell's equations, and hence may be treated by classical non-linear electrodynamics. Due to ...
hep-ph/9308353
Oscar Eboli
F.T. Brandt, O.J.P. Eboli, E.M. Gregores, M.B. Magro, P.G. Mercadante, and S.F. Novaes
Triple Vector Boson Processes in $\gamma\gamma$ Colliders
uses REVTeX 3, 13 pages and 7 figures (available upon request or ftp anonymous), IFUSP-P 1065 and IFT-P.053/93. (References added and minor changes)
Phys.Rev. D50 (1994) 5591-5601
10.1103/PhysRevD.50.5591
null
hep-ph
null
We study the production of three gauge bosons at the next generation of linear $e^+e^-$ colliders operating in the $\gamma\gamma$ mode. The processes $\gamma\gamma \rightarrow W^+W^-V$ ($V=Z^0$, or $\gamma$) can provide direct information about the quartic gauge-boson couplings. We analyze the total cross section as ...
[ { "created": "Fri, 27 Aug 1993 19:09:36 GMT", "version": "v1" }, { "created": "Fri, 10 Sep 1993 14:14:53 GMT", "version": "v2" } ]
2009-10-22
[ [ "Brandt", "F. T.", "" ], [ "Eboli", "O. J. P.", "" ], [ "Gregores", "E. M.", "" ], [ "Magro", "M. B.", "" ], [ "Mercadante", "P. G.", "" ], [ "Novaes", "S. F.", "" ] ]
We study the production of three gauge bosons at the next generation of linear $e^+e^-$ colliders operating in the $\gamma\gamma$ mode. The processes $\gamma\gamma \rightarrow W^+W^-V$ ($V=Z^0$, or $\gamma$) can provide direct information about the quartic gauge-boson couplings. We analyze the total cross section as we...
1504.04022
Joachim Brod
Fady Bishara, Joachim Brod, Patipan Uttayarat, Jure Zupan
Nonstandard Yukawa Couplings and Higgs Portal Dark Matter
38 pages, 12 figures; minor mistake in numerics fixed, conclusions unchanged; references added
null
10.1007/JHEP01(2016)010
FERMILAB-PUB-15-134-T, MITP/15-020
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the implications of non-standard Higgs Yukawa couplings to light quarks on Higgs-portal dark matter phenomenology. Saturating the present experimental bounds on up-quark, down-quark, or strange-quark Yukawa couplings, the predicted direct dark matter detection scattering rate can increase by up to four order...
[ { "created": "Wed, 15 Apr 2015 20:01:06 GMT", "version": "v1" }, { "created": "Fri, 15 May 2015 11:25:41 GMT", "version": "v2" } ]
2016-01-27
[ [ "Bishara", "Fady", "" ], [ "Brod", "Joachim", "" ], [ "Uttayarat", "Patipan", "" ], [ "Zupan", "Jure", "" ] ]
We study the implications of non-standard Higgs Yukawa couplings to light quarks on Higgs-portal dark matter phenomenology. Saturating the present experimental bounds on up-quark, down-quark, or strange-quark Yukawa couplings, the predicted direct dark matter detection scattering rate can increase by up to four orders ...
hep-ph/0012223
Stephen C. Davis
Stephen C. Davis, Warren B. Perkins, Anne-Christine Davis and Ian R. Vernon
Cosmological Phase Transitions in a Brane World
RevTeX, 9 pages. This paper was previously part of hep-ph/0008132. v2: section 5 corrected
Phys.Rev.D63:083518,2001
10.1103/PhysRevD.63.083518
DAMTP-2000-138, SWAT/264B
hep-ph astro-ph gr-qc hep-th
null
In brane world scenarios the Friedmann equation is modified, resulting in an increased expansion at early times. This has important effects on cosmological phase transitions which we investigate, elucidating significant differences to the standard case. First order phase transitions require a higher nucleation rate t...
[ { "created": "Mon, 18 Dec 2000 13:04:51 GMT", "version": "v1" }, { "created": "Wed, 15 Aug 2001 14:37:08 GMT", "version": "v2" } ]
2008-11-26
[ [ "Davis", "Stephen C.", "" ], [ "Perkins", "Warren B.", "" ], [ "Davis", "Anne-Christine", "" ], [ "Vernon", "Ian R.", "" ] ]
In brane world scenarios the Friedmann equation is modified, resulting in an increased expansion at early times. This has important effects on cosmological phase transitions which we investigate, elucidating significant differences to the standard case. First order phase transitions require a higher nucleation rate to ...
1202.2364
Kfir Blum
Kfir Blum and Raffaele Tito D'Agnolo
2 Higgs or not 2 Higgs
5 pages, 1 figure. v2: corrected error at order $(mh/mH)^4$ in eqs.(8-9), added comment about spurion analysis in footnote 1, updated figure 1. No qualitative and no significant numerical change
null
10.1016/j.physletb.2012.06.054
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivated by recent results from the LHC experiments, we analyze Higgs couplings in two Higgs doublet models with an approximate PQ symmetry. Models of this kind can naturally accommodate sizable modifications to Higgs decay patterns while leaving production at hadron colliders untouched. Near the decoupling limit, w...
[ { "created": "Fri, 10 Feb 2012 21:00:10 GMT", "version": "v1" }, { "created": "Thu, 10 Apr 2014 14:11:25 GMT", "version": "v2" } ]
2015-06-04
[ [ "Blum", "Kfir", "" ], [ "D'Agnolo", "Raffaele Tito", "" ] ]
Motivated by recent results from the LHC experiments, we analyze Higgs couplings in two Higgs doublet models with an approximate PQ symmetry. Models of this kind can naturally accommodate sizable modifications to Higgs decay patterns while leaving production at hadron colliders untouched. Near the decoupling limit, we ...
1603.02013
Tianhong Wang
Qiang Li, Tianhong Wang, Yue Jiang, Han Yuan, Guo-Li Wang
$D$-Wave Charmonia $\eta_{c2}$($1{^1D_2}$), $\psi_2$($1{^3D_2}$), and $\psi_3$($1{^3D_3}$) in $B_c$ Decays
18 pages, 9 figures
Eur. Phys. J. C (2016) 76: 454
10.1140/epjc/s10052-016-4306-3
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the semi-leptonic and non-leptonic decays of $B_c$ meson to $D$-wave charmonia, namely, $\eta_{c2}(1^1\!D_2)$, $\psi_2(1^3\!D_2)$, and $\psi_3(1^3\!D_3)$. In our calculations, the instantaneous Bethe-Salpeter method is applied to achieve the hadronic matrix elements. This method includes relativistic correct...
[ { "created": "Mon, 7 Mar 2016 11:41:13 GMT", "version": "v1" }, { "created": "Wed, 8 Jun 2016 06:38:15 GMT", "version": "v2" }, { "created": "Thu, 9 Jun 2016 11:38:59 GMT", "version": "v3" } ]
2016-09-14
[ [ "Li", "Qiang", "" ], [ "Wang", "Tianhong", "" ], [ "Jiang", "Yue", "" ], [ "Yuan", "Han", "" ], [ "Wang", "Guo-Li", "" ] ]
We study the semi-leptonic and non-leptonic decays of $B_c$ meson to $D$-wave charmonia, namely, $\eta_{c2}(1^1\!D_2)$, $\psi_2(1^3\!D_2)$, and $\psi_3(1^3\!D_3)$. In our calculations, the instantaneous Bethe-Salpeter method is applied to achieve the hadronic matrix elements. This method includes relativistic correctio...
hep-ph/0001080
Eran Naftali
E. Gotsman, E. Levin, U. Maor and E. Naftali (Tel-Aviv U.)
The Components of the $\gamma^*\gamma^*$ Cross Section
28 pages, 12 Postscript figures
Eur.Phys.J.C14:511-523,2000
10.1007/s100520000362
TAUP 2618/00
hep-ph
null
We extend our previous treatment of $\gamma^*p$ cross section based on Gribov's hypothesis to the case of photon-photon scattering. With the aid of two parameters, determined from experimental data, we separate the interactions into two categories corresponding to short ("soft") and long ("hard") distance processes. ...
[ { "created": "Tue, 11 Jan 2000 11:04:30 GMT", "version": "v1" } ]
2011-09-13
[ [ "Gotsman", "E.", "", "Tel-Aviv U." ], [ "Levin", "E.", "", "Tel-Aviv U." ], [ "Maor", "U.", "", "Tel-Aviv U." ], [ "Naftali", "E.", "", "Tel-Aviv U." ] ]
We extend our previous treatment of $\gamma^*p$ cross section based on Gribov's hypothesis to the case of photon-photon scattering. With the aid of two parameters, determined from experimental data, we separate the interactions into two categories corresponding to short ("soft") and long ("hard") distance processes. Th...
hep-ph/0309155
Arif Shoshi
H.-J. Pirner, A. I. Shoshi (Heidelberg University), G. Soyez (Universite de Liege)
Log(1/x) Gluon Distribution and Structure Functions in the Loop-Loop Correlation Model
13 pages, 10 figures,revised version,references added, typos corrected, to be published in Eur. Phys. Journal C
Eur.Phys.J. C33 (2004) 63-74
10.1140/epjc/s2003-01528-2
null
hep-ph
null
We consider the interaction of the partonic fluctuation of a scalar ``photon'' with an external color field to calculate the leading and next-to-leading order gluon distribution of the proton following the work done by Dosch-Hebecker-Metz-Pirner. We relate these gluon distributions to the short and long distance beha...
[ { "created": "Sun, 14 Sep 2003 12:53:54 GMT", "version": "v1" }, { "created": "Mon, 1 Dec 2003 17:54:07 GMT", "version": "v2" } ]
2009-11-10
[ [ "Pirner", "H. -J.", "", "Heidelberg University" ], [ "Shoshi", "A. I.", "", "Heidelberg University" ], [ "Soyez", "G.", "", "Universite de Liege" ] ]
We consider the interaction of the partonic fluctuation of a scalar ``photon'' with an external color field to calculate the leading and next-to-leading order gluon distribution of the proton following the work done by Dosch-Hebecker-Metz-Pirner. We relate these gluon distributions to the short and long distance behavi...
2003.06412
Emmanuel de Oliveira
Edgar Huayra, Emmanuel G. de Oliveira, Roman Pasechnik
DPS mechanism for associated $c\bar c b\bar b$ production in $AA$ UPCs
12 pages, 4 figs., version accepted for publication at EPJC
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the associated $c\bar{c}$ and $b\bar{b}$ quark pairs production in the double-parton scattering (DPS) process in ultraperipheral (UPCs) $AA$ collisions. We derive an analogue of the inclusive DPS pocket formula and the photon-energy dependent effective cross section considering an overlap between the hard ...
[ { "created": "Fri, 13 Mar 2020 17:54:02 GMT", "version": "v1" }, { "created": "Wed, 26 Aug 2020 20:16:44 GMT", "version": "v2" } ]
2020-08-28
[ [ "Huayra", "Edgar", "" ], [ "de Oliveira", "Emmanuel G.", "" ], [ "Pasechnik", "Roman", "" ] ]
We discuss the associated $c\bar{c}$ and $b\bar{b}$ quark pairs production in the double-parton scattering (DPS) process in ultraperipheral (UPCs) $AA$ collisions. We derive an analogue of the inclusive DPS pocket formula and the photon-energy dependent effective cross section considering an overlap between the hard SP...
1310.2788
Anders Kvellestad
N.-E. Bomark, A. Kvellestad, S. Lola, P. Osland and A.R. Raklev
Long lived charginos in Natural SUSY?
Extended discussion, updated references, matches version to appear in JHEP
null
10.1007/JHEP05(2014)007
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Supersymmetric models with a small neutralino-chargino mass difference, and as a result metastable charginos, have been a popular topic of investigation in collider phenomenology, e.g. in anomaly-mediated models of supersymmetry breaking. Recently, the absence of any supersymmetric signal at the 8 TeV LHC data has le...
[ { "created": "Thu, 10 Oct 2013 12:28:49 GMT", "version": "v1" }, { "created": "Sat, 3 May 2014 14:29:47 GMT", "version": "v2" } ]
2015-06-17
[ [ "Bomark", "N. -E.", "" ], [ "Kvellestad", "A.", "" ], [ "Lola", "S.", "" ], [ "Osland", "P.", "" ], [ "Raklev", "A. R.", "" ] ]
Supersymmetric models with a small neutralino-chargino mass difference, and as a result metastable charginos, have been a popular topic of investigation in collider phenomenology, e.g. in anomaly-mediated models of supersymmetry breaking. Recently, the absence of any supersymmetric signal at the 8 TeV LHC data has led ...
hep-ph/9910310
Maxim Polyakov
B. Lehmann-Dronke, P.V. Pobylitsa, M.V. Polyakov, A. Schafer, and K. Goeke
Hard diffractive electroproduction of two pions
Estimates of angular distributions are added
Phys.Lett. B475 (2000) 147-156
10.1016/S0370-2693(00)00069-1
RUB-TP2-16/98
hep-ph
null
We have calculated the leading order amplitude of hard diffractive electroproduction of two pions in lepton nucleon scattering. At the leading twist level a pion pair can be produced only in an isospin one or zero state. We have shown that isoscalar states are produced dominantly for x_{Bj}>0.3 and with an invariant ...
[ { "created": "Tue, 12 Oct 1999 14:00:16 GMT", "version": "v1" }, { "created": "Sun, 20 Feb 2000 13:26:34 GMT", "version": "v2" } ]
2009-10-31
[ [ "Lehmann-Dronke", "B.", "" ], [ "Pobylitsa", "P. V.", "" ], [ "Polyakov", "M. V.", "" ], [ "Schafer", "A.", "" ], [ "Goeke", "K.", "" ] ]
We have calculated the leading order amplitude of hard diffractive electroproduction of two pions in lepton nucleon scattering. At the leading twist level a pion pair can be produced only in an isospin one or zero state. We have shown that isoscalar states are produced dominantly for x_{Bj}>0.3 and with an invariant ma...
hep-ph/9408377
Johannes Bluemlein
Johannes Bl\"umlein
Small $x$ Contributions to the Structure Function $F_L(x,Q^2)$
4 p., postscript encoded with uufiles; DESY 94--149
Nucl.Phys.Proc.Suppl. 39BC (1995) 22-24
10.1016/0920-5632(95)00035-8
null
hep-ph
null
The gluon contributions to $F_L(x,Q^2)$ in ${\cal O}(\alpha_s)$ are calculated taking into account the transverse momentum of the initial state parton. In comparison with collinear factorization $F_L(x,Q^2)$, is not affected at large $x$ but takes smaller values in the small $x$ range. The onset of the $k_{\perp}$ ef...
[ { "created": "Fri, 26 Aug 1994 08:45:27 GMT", "version": "v1" } ]
2009-10-28
[ [ "Blümlein", "Johannes", "" ] ]
The gluon contributions to $F_L(x,Q^2)$ in ${\cal O}(\alpha_s)$ are calculated taking into account the transverse momentum of the initial state parton. In comparison with collinear factorization $F_L(x,Q^2)$, is not affected at large $x$ but takes smaller values in the small $x$ range. The onset of the $k_{\perp}$ effe...
2004.05174
Oscar J. P. \'Eboli
Eduardo da Silva Almeida, O. J. P. \'Eboli, M. C. Gonzalez-Garcia
Unitarity Constraints on Anomalous Quartic Couplings
typos corrected and two additional operators included in the analyses
Phys. Rev. D 101, 113003 (2020)
10.1103/PhysRevD.101.113003
YITP-SB-2020-8
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We obtain the partial-wave unitarity constraints on the lowest-dimension effective operators which generate anomalous quartic gauge couplings but leave the triple gauge couplings unaffected. We consider operator expansions with linear and nonlinear realizations of the electroweak symmetry and explore the multidimensi...
[ { "created": "Fri, 10 Apr 2020 18:00:02 GMT", "version": "v1" }, { "created": "Mon, 22 Jun 2020 14:42:27 GMT", "version": "v2" }, { "created": "Thu, 18 Mar 2021 14:29:06 GMT", "version": "v3" } ]
2021-03-19
[ [ "Almeida", "Eduardo da Silva", "" ], [ "Éboli", "O. J. P.", "" ], [ "Gonzalez-Garcia", "M. C.", "" ] ]
We obtain the partial-wave unitarity constraints on the lowest-dimension effective operators which generate anomalous quartic gauge couplings but leave the triple gauge couplings unaffected. We consider operator expansions with linear and nonlinear realizations of the electroweak symmetry and explore the multidimension...
0911.3571
Nils-Erik Bomark
N.-E. Bomark, S. Lola, P. Osland, A.R. Raklev
Cosmic Ray Signatures from Decaying Gravitino Dark Matter
To appear in the proceedings of EPS-HEP 2009, Krakow, Poland
PoS EPS-HEP2009:098,2009
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the charged cosmic rays arising from the slow decay of gravitino dark matter within supersymmetric scenarios with trilinear R-parity violation. It is shown that operators of the LLE type can very well account for the recent anomalies in cosmic ray electron and positron data reported by PAMELA, ATIC and Fermi...
[ { "created": "Wed, 18 Nov 2009 15:26:55 GMT", "version": "v1" } ]
2014-11-20
[ [ "Bomark", "N. -E.", "" ], [ "Lola", "S.", "" ], [ "Osland", "P.", "" ], [ "Raklev", "A. R.", "" ] ]
We study the charged cosmic rays arising from the slow decay of gravitino dark matter within supersymmetric scenarios with trilinear R-parity violation. It is shown that operators of the LLE type can very well account for the recent anomalies in cosmic ray electron and positron data reported by PAMELA, ATIC and Fermi L...
0711.4993
Silvia Pascoli
S. Pascoli and S. T. Petcov
Majorana Neutrinos, Neutrino Mass Spectrum and the |<m>| ~ 0.001 eV Frontier in Neutrinoless Double Beta Decay
29 pages, 6 eps figures
Phys.Rev.D77:113003,2008
10.1103/PhysRevD.77.113003
SISSA 78/2007/EP; IPPP/07/83; CPT/07/166
hep-ph
null
If future neutrino oscillation experiments show that the neutrino mass spectrum is with normal ordering, m1 < m2 < m3, and the searches for neutrinoless double beta-decay with sensitivity to values of the effective Majorana mass |<m>| > 0.01 eV give negative results, the next frontier in the quest for neutrinoless do...
[ { "created": "Fri, 30 Nov 2007 17:57:45 GMT", "version": "v1" } ]
2008-11-26
[ [ "Pascoli", "S.", "" ], [ "Petcov", "S. T.", "" ] ]
If future neutrino oscillation experiments show that the neutrino mass spectrum is with normal ordering, m1 < m2 < m3, and the searches for neutrinoless double beta-decay with sensitivity to values of the effective Majorana mass |<m>| > 0.01 eV give negative results, the next frontier in the quest for neutrinoless doub...
1804.07255
Mark Hertzberg
Mark P. Hertzberg, Enrico D. Schiappacasse
Scalar Dark Matter Clumps with Angular Momentum
22 pages, 7 figures. V2: Additional comparison to literature and added references. Updated to resemble version published in JCAP
JCAP 08 (2018) 028
10.1088/1475-7516/2018/08/028
null
hep-ph astro-ph.CO astro-ph.GA gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The behavior of light scalar dark matter has been a subject of much interest recently as it can lead to interesting small scale behavior. In particular, this can lead to the formation of gravitationally bound clumps for these light scalars, including axions. In Ref. [1] we analyzed the behavior of these clumps, assum...
[ { "created": "Thu, 19 Apr 2018 16:23:23 GMT", "version": "v1" }, { "created": "Mon, 17 Sep 2018 17:47:53 GMT", "version": "v2" } ]
2018-09-18
[ [ "Hertzberg", "Mark P.", "" ], [ "Schiappacasse", "Enrico D.", "" ] ]
The behavior of light scalar dark matter has been a subject of much interest recently as it can lead to interesting small scale behavior. In particular, this can lead to the formation of gravitationally bound clumps for these light scalars, including axions. In Ref. [1] we analyzed the behavior of these clumps, assumin...
1601.06557
Bertrand Duclou\'e
B. Duclou\'e, T. Lappi, H. M\"antysaari
Centrality-dependent forward $J/\psi$ production in high energy proton-nucleus collisions
6 pages, 2 figures. Contribution to the proceedings of the 6th International Conference on Physics Opportunities at an Electron-Ion Collider (POETIC6), September 7-11, 2015, Palaiseau, France
null
10.1051/epjconf/201611204002
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Forward $J/\psi$ production and suppression in high energy proton-nucleus collisions can be an important probe of gluon saturation. In an earlier work we studied this process in the Color Glass Condensate framework and showed that using the Glauber approach to extrapolate the dipole cross section of a proton to a nuc...
[ { "created": "Mon, 25 Jan 2016 11:21:31 GMT", "version": "v1" } ]
2016-04-20
[ [ "Ducloué", "B.", "" ], [ "Lappi", "T.", "" ], [ "Mäntysaari", "H.", "" ] ]
Forward $J/\psi$ production and suppression in high energy proton-nucleus collisions can be an important probe of gluon saturation. In an earlier work we studied this process in the Color Glass Condensate framework and showed that using the Glauber approach to extrapolate the dipole cross section of a proton to a nucle...
hep-ph/0603250
Irinel Caprini
Irinel Caprini
Rescattering effects and the $\sigma$ pole in hadronic decays
10 pages, minor text changes, version to appear in Phys.Lett.B
Phys.Lett.B638:468-472,2006
10.1016/j.physletb.2006.06.003
null
hep-ph
null
The $\sigma$ resonance was observed as a conspicuous $\pi^+\pi^-$ peak in hadronic decays like $J/\psi\to \pi^+\pi^-\omega$ or $D^+\to\pi^+\pi^-\pi^+$. The phase of the $\sigma\to\pi^+\pi^-$ amplitude, extracted from production data within the conventional isobar model, is assumed to coincide with that in $\pi\pi$ el...
[ { "created": "Thu, 30 Mar 2006 07:20:17 GMT", "version": "v1" }, { "created": "Mon, 19 Jun 2006 08:54:54 GMT", "version": "v2" } ]
2008-11-26
[ [ "Caprini", "Irinel", "" ] ]
The $\sigma$ resonance was observed as a conspicuous $\pi^+\pi^-$ peak in hadronic decays like $J/\psi\to \pi^+\pi^-\omega$ or $D^+\to\pi^+\pi^-\pi^+$. The phase of the $\sigma\to\pi^+\pi^-$ amplitude, extracted from production data within the conventional isobar model, is assumed to coincide with that in $\pi\pi$ elas...
2107.02652
Glen Cowan
Glen Cowan
Effect of Systematic Uncertainty Estimation on the Muon $g-2$ Anomaly
6 pages, 2 figures
null
10.1051/epjconf/202225809002
null
hep-ph physics.data-an
http://creativecommons.org/licenses/by/4.0/
The statistical significance that characterizes a discrepancy between a measurement and theoretical prediction is usually calculated assuming that the statistical and systematic uncertainties are known. Many types of systematic uncertainties are, however, estimated on the basis of approximate procedures and thus the ...
[ { "created": "Tue, 6 Jul 2021 14:43:57 GMT", "version": "v1" } ]
2022-02-16
[ [ "Cowan", "Glen", "" ] ]
The statistical significance that characterizes a discrepancy between a measurement and theoretical prediction is usually calculated assuming that the statistical and systematic uncertainties are known. Many types of systematic uncertainties are, however, estimated on the basis of approximate procedures and thus the va...
1704.05893
Bob Holdom
Bob Holdom and Roman Koniuk
A bound state model for a light scalar
14 pages, 8 figures, published version
J. High Energ. Phys. (2017) 2017: 102
10.1007/JHEP12(2017)102
null
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recent lattice studies of near-conformal strong dynamics suggest the existence of a light scalar. This provides motivation to consider a simple Hamiltonian-based bound-state model where the pseudoscalar, scalar, vector and axial-vector states are treated on an equal footing. The model interpolates between the non-rel...
[ { "created": "Wed, 19 Apr 2017 18:39:57 GMT", "version": "v1" }, { "created": "Wed, 20 Dec 2017 23:01:23 GMT", "version": "v2" } ]
2017-12-22
[ [ "Holdom", "Bob", "" ], [ "Koniuk", "Roman", "" ] ]
Recent lattice studies of near-conformal strong dynamics suggest the existence of a light scalar. This provides motivation to consider a simple Hamiltonian-based bound-state model where the pseudoscalar, scalar, vector and axial-vector states are treated on an equal footing. The model interpolates between the non-relat...
1110.4138
Vincenzo Greco
V. Greco (Catania U.), H. van Hees (Frankfurt U.), R. Rapp (Texas A&M U.)
Heavy Quark Dynamics in the QGP
10 pages, 4 figures, Proceedings of EPIC@LHC Workshop, 6-8 July, Bari
null
10.1063/1.3692206
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We assess transport properties of heavy quarks in the Quark-Gluon Plasma (QGP) that show a strong non-perturbative behavior. A T-matrix approach based on a potential taken from lattice QCD hints at the presence of heavy-quark (HQ) resonant scattering with an increasing strength as the temperature, $T$, reaches the cr...
[ { "created": "Tue, 18 Oct 2011 22:27:27 GMT", "version": "v1" }, { "created": "Tue, 25 Oct 2011 09:01:43 GMT", "version": "v2" } ]
2015-05-30
[ [ "Greco", "V.", "", "Catania U." ], [ "van Hees", "H.", "", "Frankfurt U." ], [ "Rapp", "R.", "", "Texas A&M\n U." ] ]
We assess transport properties of heavy quarks in the Quark-Gluon Plasma (QGP) that show a strong non-perturbative behavior. A T-matrix approach based on a potential taken from lattice QCD hints at the presence of heavy-quark (HQ) resonant scattering with an increasing strength as the temperature, $T$, reaches the crit...
1902.05142
Jens Erler
Jens Erler and Matthias Schott
Electroweak Precision Tests of the Standard Model after the Discovery of the Higgs Boson
65 pages, 52 figures
null
10.1016/j.ppnp.2019.02.007
MITP/19-006
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The global fit of the Standard Model predictions to electroweak precision data, which has been routinely performed in the past decades by several groups, led to the prediction of the top quark and the Higgs boson masses before their respective discoveries. With the measurement of the Higgs boson mass at the Large Had...
[ { "created": "Wed, 13 Feb 2019 21:50:03 GMT", "version": "v1" }, { "created": "Fri, 22 Feb 2019 12:03:29 GMT", "version": "v2" } ]
2019-05-01
[ [ "Erler", "Jens", "" ], [ "Schott", "Matthias", "" ] ]
The global fit of the Standard Model predictions to electroweak precision data, which has been routinely performed in the past decades by several groups, led to the prediction of the top quark and the Higgs boson masses before their respective discoveries. With the measurement of the Higgs boson mass at the Large Hadro...
hep-ph/9406285
Claudio Lucchesi
P.F. Kelly, Q. Liu, C. Lucchesi and C. Manuel
Classical Transport Theory and Hard Thermal Loops in the Quark-Gluon Plasma
MIT--CTP #2320, 23 pages, Revtex
Phys.Rev.D50:4209-4218,1994
10.1103/PhysRevD.50.4209
null
hep-ph hep-th nucl-th
null
Classical transport theory for colored particles is investigated and employed to derive the hard thermal loops of QCD. A formal construction of phase-space for color degrees of freedom is presented. The gauge invariance of the non-Abelian Vlasov equations is verified and used as a guiding principle in our approximati...
[ { "created": "Fri, 10 Jun 1994 20:23:53 GMT", "version": "v1" } ]
2011-07-19
[ [ "Kelly", "P. F.", "" ], [ "Liu", "Q.", "" ], [ "Lucchesi", "C.", "" ], [ "Manuel", "C.", "" ] ]
Classical transport theory for colored particles is investigated and employed to derive the hard thermal loops of QCD. A formal construction of phase-space for color degrees of freedom is presented. The gauge invariance of the non-Abelian Vlasov equations is verified and used as a guiding principle in our approximation...
1909.03554
Yan-Qing Ma
Rong Li, An-Ping Chen, Jing-Kai Huang, Yan-Qing Ma
Relativistic effect of $J/\psi$ hadroproduction in large $p_T$ region
24 pages, 2 figures
null
10.1007/JHEP10(2019)210
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
By combining NRQCD factorization and collinear factorization, we compute a series of relativistic corrections for $J/\psi$ hadroproduction to all orders in $v^2$ at large $p_T$ limit. The $v^2$ expansion converges well for all channels. We find that the ratio of relativistic correction term to the corresponding leadi...
[ { "created": "Sun, 8 Sep 2019 22:05:44 GMT", "version": "v1" } ]
2020-01-08
[ [ "Li", "Rong", "" ], [ "Chen", "An-Ping", "" ], [ "Huang", "Jing-Kai", "" ], [ "Ma", "Yan-Qing", "" ] ]
By combining NRQCD factorization and collinear factorization, we compute a series of relativistic corrections for $J/\psi$ hadroproduction to all orders in $v^2$ at large $p_T$ limit. The $v^2$ expansion converges well for all channels. We find that the ratio of relativistic correction term to the corresponding leading...
2102.06718
Matthew Schwartz
Roman N. Lee, Matthew D. Schwartz, and Xiaoyuan Zhang
The Compton Scattering Total Cross Section at Next-to-Leading Order
6 pages 1 figure; v2. published version; explicit expressions given in an Appendix and in Mathematica notebook
Phys. Rev. Lett. 126, 211801 (2021)
10.1103/PhysRevLett.126.211801
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
An analytic formula is given for the total scattering cross section of an electron and a photon at order $\alpha^3$. This includes both the double-Compton scattering real-emission contribution as well as the virtual Compton scattering part. When combined with the recent analytic result for the pair-production cross s...
[ { "created": "Fri, 12 Feb 2021 19:00:11 GMT", "version": "v1" }, { "created": "Wed, 16 Jun 2021 18:23:18 GMT", "version": "v2" } ]
2021-06-18
[ [ "Lee", "Roman N.", "" ], [ "Schwartz", "Matthew D.", "" ], [ "Zhang", "Xiaoyuan", "" ] ]
An analytic formula is given for the total scattering cross section of an electron and a photon at order $\alpha^3$. This includes both the double-Compton scattering real-emission contribution as well as the virtual Compton scattering part. When combined with the recent analytic result for the pair-production cross sec...
1112.6086
Takahiro Sasaki
Takahiro Sasaki, Junichi Takahashi, Yuji Sakai, Hiroaki Kouno, Masanobu Yahiro
Theta vacuum and entanglement interaction in the three-flavor Polyakov-loop extended Nambu-Jona-Lasinio model
9 pages, 14 figures, Published version
Phys.Rev.D85:056009,2012
10.1103/PhysRevD.85.056009
null
hep-ph hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate theta-vacuum effects on the QCD phase diagram for the realistic 2+1 flavor system, using the three-flavor Polyakov-extended Nambu-Jona-Lasinio (PNJL) model and the entanglement PNJL model as an extension of the PNJL model. The theta-vacuum effects make the chiral transition sharper. For large theta-vac...
[ { "created": "Wed, 28 Dec 2011 09:53:50 GMT", "version": "v1" }, { "created": "Fri, 24 Feb 2012 10:47:11 GMT", "version": "v2" }, { "created": "Thu, 5 Apr 2012 05:44:28 GMT", "version": "v3" } ]
2012-04-06
[ [ "Sasaki", "Takahiro", "" ], [ "Takahashi", "Junichi", "" ], [ "Sakai", "Yuji", "" ], [ "Kouno", "Hiroaki", "" ], [ "Yahiro", "Masanobu", "" ] ]
We investigate theta-vacuum effects on the QCD phase diagram for the realistic 2+1 flavor system, using the three-flavor Polyakov-extended Nambu-Jona-Lasinio (PNJL) model and the entanglement PNJL model as an extension of the PNJL model. The theta-vacuum effects make the chiral transition sharper. For large theta-vacuu...
2201.02317
Mikko Laine
P. Klose, M. Laine, S. Procacci
Gravitational wave background from non-Abelian reheating after axion-like inflation
18 pages. v2: clarifications added
JCAP 05 (2022) 021
10.1088/1475-7516/2022/05/021
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A pseudoscalar inflaton $\varphi$, coupled to the topological charge density $F\tilde{F}$ of a non-Abelian sector, can decay to gauge bosons ($\varphi\to g g $), which may thermalize rapidly. The friction felt by $\varphi$ is then increased by non-Abelian "strong sphalerons", leading to a self-amplifying process that...
[ { "created": "Fri, 7 Jan 2022 03:54:18 GMT", "version": "v1" }, { "created": "Fri, 13 May 2022 15:57:35 GMT", "version": "v2" } ]
2022-05-16
[ [ "Klose", "P.", "" ], [ "Laine", "M.", "" ], [ "Procacci", "S.", "" ] ]
A pseudoscalar inflaton $\varphi$, coupled to the topological charge density $F\tilde{F}$ of a non-Abelian sector, can decay to gauge bosons ($\varphi\to g g $), which may thermalize rapidly. The friction felt by $\varphi$ is then increased by non-Abelian "strong sphalerons", leading to a self-amplifying process that c...
1409.2494
Hongxi Xing
Zhong-Bo Kang, Ivan Vitev, Enke Wang, Hongxi Xing, Cheng Zhang
Multiple scattering effects on heavy meson production in p+A collisions at backward rapidity
10 pages, 6 figures, published version in PLB
Phys. Lett. B 740, 23 (2015)
10.1016/j.physletb.2014.11.024
LA-UR-14-27010
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the incoherent multiple scattering effects on heavy meson production in the backward rapidity region of p+A collisions within the generalized high-twist factorization formalism. We calculate explicitly the double scattering contributions to the heavy meson differential cross sections by taking into account b...
[ { "created": "Mon, 8 Sep 2014 20:00:10 GMT", "version": "v1" }, { "created": "Mon, 1 Dec 2014 23:30:40 GMT", "version": "v2" } ]
2015-03-09
[ [ "Kang", "Zhong-Bo", "" ], [ "Vitev", "Ivan", "" ], [ "Wang", "Enke", "" ], [ "Xing", "Hongxi", "" ], [ "Zhang", "Cheng", "" ] ]
We study the incoherent multiple scattering effects on heavy meson production in the backward rapidity region of p+A collisions within the generalized high-twist factorization formalism. We calculate explicitly the double scattering contributions to the heavy meson differential cross sections by taking into account bot...
0801.3124
Yutaka Tobita
Kenzo Ishikawa, Yutaka Tobita
Coherence length of cosmic background radiation enlarges the attenuation length of the ultra-high energy proton
8 pages, 2 figures,study about the second coherence length has been added
null
null
EPHOU-08-001
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is pointed out that an agreement of the one particle energy spectrum of the cosmic background radiation (CMBR) with Plank distribution of 2.725 [K] does not give a strong constraint on the coherence length of CMBR if the mean free path of CMBR is very long. The coherence length in this situation is estimated as a ...
[ { "created": "Mon, 21 Jan 2008 04:54:50 GMT", "version": "v1" }, { "created": "Thu, 18 Jun 2009 16:28:19 GMT", "version": "v2" }, { "created": "Tue, 9 Mar 2010 10:14:26 GMT", "version": "v3" } ]
2010-03-10
[ [ "Ishikawa", "Kenzo", "" ], [ "Tobita", "Yutaka", "" ] ]
It is pointed out that an agreement of the one particle energy spectrum of the cosmic background radiation (CMBR) with Plank distribution of 2.725 [K] does not give a strong constraint on the coherence length of CMBR if the mean free path of CMBR is very long. The coherence length in this situation is estimated as a fe...
hep-ph/0112065
Gilberto Tavares Velasco
A. Flores-Tlalpa, J. M. Hernandez, G. Tavares-Velasco and J.J. Toscano
Effective Lagrangian description of the lepton flavor violating decays Z-->li lj
References added, final version to appear in Physical Review D
Phys.Rev. D65 (2002) 073010
10.1103/PhysRevD.65.073010
null
hep-ph
null
A comprehensive analysis of the lepton flavor violating (LFV) decays Z-->li lj is presented within the effective Lagrangian approach. Both the decoupling and nondecoupling scenarios are explored. The experimental constraints from li --> lj lk \bar{lk} and li -->lj gamma as well as some relationships arising from the ...
[ { "created": "Tue, 4 Dec 2001 23:10:45 GMT", "version": "v1" }, { "created": "Fri, 4 Jan 2002 22:24:16 GMT", "version": "v2" } ]
2009-11-07
[ [ "Flores-Tlalpa", "A.", "" ], [ "Hernandez", "J. M.", "" ], [ "Tavares-Velasco", "G.", "" ], [ "Toscano", "J. J.", "" ] ]
A comprehensive analysis of the lepton flavor violating (LFV) decays Z-->li lj is presented within the effective Lagrangian approach. Both the decoupling and nondecoupling scenarios are explored. The experimental constraints from li --> lj lk \bar{lk} and li -->lj gamma as well as some relationships arising from the ga...
2403.13966
Szymon Zi\k{e}ba
Biswajit Karmakar, Szymon Zi\k{e}ba
Constraining Neutrino Mixing Schemes with Correlations of Oscillation Data
6 pages, 3 figures, submitted to Proceedings of "XXX Cracow EPIPHANY Conference on Precision Physics at High Energy Colliders"
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Correlations obtained from neutrino oscillation data on mixing parameters may help to validate neutrino mixing schemes. In this context, we explore how correlations of neutrino oscillation parameters affect the $\rm{TM}_1$ and $\rm{TM}_2$ mixing scenarios.
[ { "created": "Wed, 20 Mar 2024 20:41:30 GMT", "version": "v1" } ]
2024-03-22
[ [ "Karmakar", "Biswajit", "" ], [ "Zięba", "Szymon", "" ] ]
Correlations obtained from neutrino oscillation data on mixing parameters may help to validate neutrino mixing schemes. In this context, we explore how correlations of neutrino oscillation parameters affect the $\rm{TM}_1$ and $\rm{TM}_2$ mixing scenarios.
0707.0817
Wei-shui Xu
Yi-hong Gao, Wei-shui Xu and Ding-fang Zeng
Viscosity and jet quenching from holographic model
5 pages, minor changes and references added
null
null
null
hep-ph
null
We consider the backreaction of the fundamental flavor degrees of freedom on the AdS$_5$-Schwarz background, and calculate their contributions to the shear viscosity and jet-quenching parameter of the thermal quark-gluon plasma.
[ { "created": "Thu, 5 Jul 2007 16:01:13 GMT", "version": "v1" }, { "created": "Sun, 23 Sep 2007 14:57:23 GMT", "version": "v2" } ]
2007-09-23
[ [ "Gao", "Yi-hong", "" ], [ "Xu", "Wei-shui", "" ], [ "Zeng", "Ding-fang", "" ] ]
We consider the backreaction of the fundamental flavor degrees of freedom on the AdS$_5$-Schwarz background, and calculate their contributions to the shear viscosity and jet-quenching parameter of the thermal quark-gluon plasma.
hep-ph/9805328
Michael A. Doncheski
M. A. Doncheski and R. W. Robinett
Radiation zeros and scalar particles beyond the standard model
18 pages (LaTeX) plus 5 postscript figures
Phys.Lett. B435 (1998) 364-372
10.1016/S0370-2693(98)00807-7
PSU/TH/199
hep-ph
null
Standard radiation zeros arise from the factorization properties of tree-level amplitudes involving a massless photon and can occur when all charged particles in the initial and final state have the same sign. We investigate how several different processes involving new scalar particles beyond the standard model may ...
[ { "created": "Thu, 14 May 1998 17:12:30 GMT", "version": "v1" } ]
2009-10-31
[ [ "Doncheski", "M. A.", "" ], [ "Robinett", "R. W.", "" ] ]
Standard radiation zeros arise from the factorization properties of tree-level amplitudes involving a massless photon and can occur when all charged particles in the initial and final state have the same sign. We investigate how several different processes involving new scalar particles beyond the standard model may ex...
2205.07474
Josef Pradler
Josef Pradler
Is there a radio excess from the decoupling of pre-recombination bremsstrahlung?
3 pages
Res. Notes AAS 6 266 (2022)
10.3847/2515-5172/acab64
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recently it has been suggested that thermal bremsstrahlung emission, when it decouples prior to recombination, creates an excess over the Planck cosmic microwave background spectrum at sub-GHz frequencies. Remarkable by itself, this would also explain a long-standing unexplained deficit in the predictions of the extr...
[ { "created": "Mon, 16 May 2022 06:57:52 GMT", "version": "v1" } ]
2022-12-19
[ [ "Pradler", "Josef", "" ] ]
Recently it has been suggested that thermal bremsstrahlung emission, when it decouples prior to recombination, creates an excess over the Planck cosmic microwave background spectrum at sub-GHz frequencies. Remarkable by itself, this would also explain a long-standing unexplained deficit in the predictions of the extrag...
hep-ph/9402285
Mabq
Tao Huang, Bo-Qiang Ma and Qi-Xing Shen
Analysis of the Pion Wave Function in Light-Cone Formalism
22 Latex pages
Phys.Rev. D49 (1994) 1490-1499
10.1103/PhysRevD.49.1490
null
hep-ph
null
Several general constraints are suggested to analyze the pionic valence-state wave function. It is found that the present model wave functions used in light-cone formalism of perturbative quantum chromodynamics have failed these requirements to fit the pionic form factor data and the reasonable valence-state structur...
[ { "created": "Tue, 15 Feb 1994 16:31:53 GMT", "version": "v1" } ]
2009-10-28
[ [ "Huang", "Tao", "" ], [ "Ma", "Bo-Qiang", "" ], [ "Shen", "Qi-Xing", "" ] ]
Several general constraints are suggested to analyze the pionic valence-state wave function. It is found that the present model wave functions used in light-cone formalism of perturbative quantum chromodynamics have failed these requirements to fit the pionic form factor data and the reasonable valence-state structure ...
hep-ph/9711457
Mary Hall Reno
L. Pasquali (U Iowa), M. H. Reno (U Iowa and CERN), I. Sarcevic (U Arizona)
Muon and Muon Neutrino Fluxes from Atmospheric Charm
3 pages, submitted to the Proceedings of the Fifth International Workshop on Topics in Astroparticle and Underground Physics, Sept. 1997
Nucl.Phys.Proc.Suppl. 70 (1999) 361-363
10.1016/S0920-5632(98)00452-6
null
hep-ph astro-ph
null
The charm contribution to the atmospheric fluxes of muons and muon neutrinos may be enhanced by as much as a factor of 10 when one includes the contributions of D->pi,K->leptons and folds in uncertainties in the charm cross section and energy distribution. In the energy range considered here, from 100 GeV to 10 TeV, ...
[ { "created": "Tue, 25 Nov 1997 08:18:24 GMT", "version": "v1" } ]
2015-06-25
[ [ "Pasquali", "L.", "", "U Iowa" ], [ "Reno", "M. H.", "", "U Iowa and CERN" ], [ "Sarcevic", "I.", "", "U\n Arizona" ] ]
The charm contribution to the atmospheric fluxes of muons and muon neutrinos may be enhanced by as much as a factor of 10 when one includes the contributions of D->pi,K->leptons and folds in uncertainties in the charm cross section and energy distribution. In the energy range considered here, from 100 GeV to 10 TeV, th...
1610.04765
Francesco Giovanni Celiberto
F. Caporale, F.G. Celiberto, G. Chachamis, D. Gordo Gomez, B. Murdaca, A. Sabio Vera
High energy effects in multi-jet production at LHC
7 pages, 2 figures, presented by F.G. Celiberto at the 24th Low-x Meeting, 6-11 June 2016, K\'aroly R\'obert F\H{o}iskola, Gy\"ong\"yos, Hungary
Journal of Central European Green Innovation 5 (2017) no.2, 47
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study differential cross sections for the production of three and four jets in multi-Regge kinematics, the main interest lying on azimuthal angle dependences. The theoretical setup is the jet production from a single BFKL ladder with a convolution of two/three BFKL Green functions, where two forward/backward jets ...
[ { "created": "Sat, 15 Oct 2016 17:11:45 GMT", "version": "v1" }, { "created": "Fri, 8 Sep 2017 22:52:15 GMT", "version": "v2" } ]
2017-09-12
[ [ "Caporale", "F.", "" ], [ "Celiberto", "F. G.", "" ], [ "Chachamis", "G.", "" ], [ "Gomez", "D. Gordo", "" ], [ "Murdaca", "B.", "" ], [ "Vera", "A. Sabio", "" ] ]
We study differential cross sections for the production of three and four jets in multi-Regge kinematics, the main interest lying on azimuthal angle dependences. The theoretical setup is the jet production from a single BFKL ladder with a convolution of two/three BFKL Green functions, where two forward/backward jets ar...
hep-ph/0312268
Timothy L. Barklow
Timothy L. Barklow
Higgs Coupling Measurements at a 1 TeV Linear Collider
Correct typo in Table 2
null
null
SLAC-PUB-10283
hep-ph
null
Methods for extracting Higgs boson signals at a 1 TeV center-of-mass energy e+e- linear collider are described. In addition, estimates are given for the accuracy with which branching fractions can be measured for Higgs boson decays to bb, WW, gluon-gluon, and gamma-gamma.
[ { "created": "Thu, 18 Dec 2003 21:19:44 GMT", "version": "v1" }, { "created": "Wed, 21 Jan 2004 19:51:57 GMT", "version": "v2" } ]
2007-05-23
[ [ "Barklow", "Timothy L.", "" ] ]
Methods for extracting Higgs boson signals at a 1 TeV center-of-mass energy e+e- linear collider are described. In addition, estimates are given for the accuracy with which branching fractions can be measured for Higgs boson decays to bb, WW, gluon-gluon, and gamma-gamma.
0707.2395
Alexander Ilyichev
A. Ilyichev, S. Lukashevich, N. Maksimenko
Moving medium electrodynamics approach for description of the electric and magnetic static polarizable properties of the nucleon at low energy
11 pages, 3 figures
null
null
null
hep-ph
null
Using the relativistic electrodynamics of continuous media formalism and main relativistic quantum field theory principles the covariant Lagrangian of electromagnetic field interaction with polarizable 1/2-spin particles have been obtained. This Lagrangian let us to determine canonical and metric energy-momentum tens...
[ { "created": "Tue, 17 Jul 2007 05:52:40 GMT", "version": "v1" } ]
2007-07-18
[ [ "Ilyichev", "A.", "" ], [ "Lukashevich", "S.", "" ], [ "Maksimenko", "N.", "" ] ]
Using the relativistic electrodynamics of continuous media formalism and main relativistic quantum field theory principles the covariant Lagrangian of electromagnetic field interaction with polarizable 1/2-spin particles have been obtained. This Lagrangian let us to determine canonical and metric energy-momentum tensor...
hep-ph/0305149
Konstantin Klimenko
D. Ebert, K.G. Klimenko
Quark droplets stability induced by external magnetic field
16 pages, 9 figures, REVTEX4; new references added; minor changes of the text
Nucl.Phys. A728 (2003) 203-225
10.1016/j.nuclphysa.2003.08.021
null
hep-ph
null
The influence of a constant homogeneous external magnetic field $H$ on the formation and stability of quark droplets is investigated within a simple Nambu -- Jona-Lasinio model by using a thermodynamic approach. For a vanishing magnetic field stable quark droplets, which are schematically the bags of massless quarks,...
[ { "created": "Wed, 14 May 2003 09:27:32 GMT", "version": "v1" }, { "created": "Tue, 17 Jun 2003 13:39:46 GMT", "version": "v2" } ]
2015-06-25
[ [ "Ebert", "D.", "" ], [ "Klimenko", "K. G.", "" ] ]
The influence of a constant homogeneous external magnetic field $H$ on the formation and stability of quark droplets is investigated within a simple Nambu -- Jona-Lasinio model by using a thermodynamic approach. For a vanishing magnetic field stable quark droplets, which are schematically the bags of massless quarks, a...