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hep-ph/0611326
Sven Heinemeyer
M. Frank, T. Hahn, S. Heinemeyer, W. Hollik, H. Rzehak, G. Weiglein
The Higgs Boson Masses and Mixings of the Complex MSSM in the Feynman-Diagrammatic Approach
57 pages, 12 figures. Discussion about decoupling properties added, references added. Version to appear in JHEP
JHEP 0702:047,2007
10.1088/1126-6708/2007/02/047
DCPT/06/160, IPPP/06/80, MPP-2006-158, PSI-PR-06-14
hep-ph
null
New results for the complete one-loop contributions to the masses and mixing effects in the Higgs sector are obtained for the MSSM with complex parameters using the Feynman-diagrammatic approach. The full dependence on all relevant complex phases is taken into account, and all the imaginary parts appearing in the cal...
[ { "created": "Mon, 27 Nov 2006 10:01:09 GMT", "version": "v1" }, { "created": "Mon, 29 Jan 2007 09:43:20 GMT", "version": "v2" } ]
2010-10-27
[ [ "Frank", "M.", "" ], [ "Hahn", "T.", "" ], [ "Heinemeyer", "S.", "" ], [ "Hollik", "W.", "" ], [ "Rzehak", "H.", "" ], [ "Weiglein", "G.", "" ] ]
New results for the complete one-loop contributions to the masses and mixing effects in the Higgs sector are obtained for the MSSM with complex parameters using the Feynman-diagrammatic approach. The full dependence on all relevant complex phases is taken into account, and all the imaginary parts appearing in the calcu...
1110.1875
Mikhail Ivanov
Mikhail G. Ivanov
Superluminal motion and Lorentzian symmetry breaking and repairing in two-metric theories
5 pages. Extra references are added in v2
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The new results by OPERA collaboration claim the discovery of superluminal neutrinos. Superluminal particles have to break Lorentzian symmetry or causality principle. The method discussed gives us the possibility to reintroduce Lorentzian symmetry without breaking of causality.
[ { "created": "Sun, 9 Oct 2011 19:26:36 GMT", "version": "v1" }, { "created": "Sat, 18 Feb 2012 11:50:19 GMT", "version": "v2" } ]
2012-02-21
[ [ "Ivanov", "Mikhail G.", "" ] ]
The new results by OPERA collaboration claim the discovery of superluminal neutrinos. Superluminal particles have to break Lorentzian symmetry or causality principle. The method discussed gives us the possibility to reintroduce Lorentzian symmetry without breaking of causality.
2304.07383
Alexander Simpson
Alex Simpson
Excising Curvature Singularities from General Relativity
PhD Thesis; 276 pages; 42 figures; 429 references. v1
null
null
null
gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This thesis operates within the framework of general relativity without curvature singularities. The motivation for this framework is explored, and several conclusions are drawn with a look towards future research. There are many ways to excise curvature singularities from general relativity; a full list of desirable...
[ { "created": "Fri, 14 Apr 2023 20:32:36 GMT", "version": "v1" } ]
2023-04-18
[ [ "Simpson", "Alex", "" ] ]
This thesis operates within the framework of general relativity without curvature singularities. The motivation for this framework is explored, and several conclusions are drawn with a look towards future research. There are many ways to excise curvature singularities from general relativity; a full list of desirable c...
1610.06563
Alexander Studenikin
Alexander Studenikin
Neutrino spin and spin-flavour oscillations in transversally moving or polarized matter
3 pages in LaTex, presented at the 27th International Conference on Neutrino Physics and Astrophysics (South Kensington, London, UK, July 4-9 2016)
null
10.1088/1742-6596/888/1/012221
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Studies of an interesting effect of neutrino spin and spin-flavour oscillations engenders by neutrino weak interactions with the transversally moving or polarized matter are reviewed.
[ { "created": "Thu, 20 Oct 2016 12:09:07 GMT", "version": "v1" } ]
2017-10-11
[ [ "Studenikin", "Alexander", "" ] ]
Studies of an interesting effect of neutrino spin and spin-flavour oscillations engenders by neutrino weak interactions with the transversally moving or polarized matter are reviewed.
1305.7216
Paolo Lipari
Paolo Lipari and Maurizio Lusignoli
Interpretation of the measurements of total, elastic and diffractive cross sections at LHC
24 pages, 11 figures
Eur.Phys.J. C (2013) 73:2630
10.1140/epjc/s10052-013-2630-4
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recently at LHC one has obtained measurements of the total, elastic and diffractive cross sections in pp collisions at very high energy. The total cross section is in good agreement with predictions based on a leading behavior \sigma_{tot} (s) \propto (\ln s/s_0)^2, on the other hand the elastic cross section is lowe...
[ { "created": "Thu, 30 May 2013 19:39:37 GMT", "version": "v1" }, { "created": "Sun, 30 Jun 2013 10:24:23 GMT", "version": "v2" } ]
2013-12-17
[ [ "Lipari", "Paolo", "" ], [ "Lusignoli", "Maurizio", "" ] ]
Recently at LHC one has obtained measurements of the total, elastic and diffractive cross sections in pp collisions at very high energy. The total cross section is in good agreement with predictions based on a leading behavior \sigma_{tot} (s) \propto (\ln s/s_0)^2, on the other hand the elastic cross section is lower ...
1812.11372
Zhi-Qing Zhang
Zhi-Qing Zhang, Hongxia Guo
Three body radiative decay $B_s\to \phi \bar K^0 \gamma$ in the PQCD approach
17 pages,6 figures, Accepted for publication in EPJC
Eur.Phys.J.C 79, 59 (2019)
10.1140/epjc/s10052-019-6554-5
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the three body radiative decay $B_s\to \phi \bar K^0 \gamma$ by introducing the $\phi K$ pair distribution amplitudes (DAs) in the perturbative QCD approach. This nonperturbative inputs, the two meson DAs, is very important to simplify the calculations. Besides the dominant electromagnetic penguin operator $...
[ { "created": "Sat, 29 Dec 2018 14:46:51 GMT", "version": "v1" } ]
2019-04-23
[ [ "Zhang", "Zhi-Qing", "" ], [ "Guo", "Hongxia", "" ] ]
We study the three body radiative decay $B_s\to \phi \bar K^0 \gamma$ by introducing the $\phi K$ pair distribution amplitudes (DAs) in the perturbative QCD approach. This nonperturbative inputs, the two meson DAs, is very important to simplify the calculations. Besides the dominant electromagnetic penguin operator $O_...
hep-ph/0401009
BingAn Li
Bing An Li
Correction of the low energy theorem of \gamma\to2\pi anomaly
14 pages
null
null
null
hep-ph
null
A correction of the low energy theorem of the \gamma\to3\pi anomaly has been found. A_{3\pi}(0,0,0) and the cross section are calculated. Theory agrees with data. There is no new adjustable parameter.
[ { "created": "Fri, 2 Jan 2004 17:19:30 GMT", "version": "v1" } ]
2007-05-23
[ [ "Li", "Bing An", "" ] ]
A correction of the low energy theorem of the \gamma\to3\pi anomaly has been found. A_{3\pi}(0,0,0) and the cross section are calculated. Theory agrees with data. There is no new adjustable parameter.
1007.1861
Angelo Tartaglia
A. Di Virgilio, K. U. Schreiber, A. Gebauer, J-P. R. Wells, A. Tartaglia, J. Belfi, N. Beverini, A.Ortolan
A laser gyroscope system to detect the Gravito-Magnetic effect on Earth
9 pages, 6 figures. 2010 Honourable mention of the Gravity Research Foundation; to be published on J. Mod. Phys. D
Int.J.Mod.Phys.D19:2331-2343,2010
10.1142/S0218271810018360
null
gr-qc physics.geo-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Large scale square ring laser gyros with a length of four meters on each side are approaching a sensitivity of 1x10^-11 rad/s/sqrt(Hz). This is about the regime required to measure the gravitomagnetic effect (Lense Thirring) of the Earth. For an ensemble of linearly independent gyros each measurement signal depends u...
[ { "created": "Mon, 12 Jul 2010 10:36:15 GMT", "version": "v1" } ]
2011-01-17
[ [ "Di Virgilio", "A.", "" ], [ "Schreiber", "K. U.", "" ], [ "Gebauer", "A.", "" ], [ "Wells", "J-P. R.", "" ], [ "Tartaglia", "A.", "" ], [ "Belfi", "J.", "" ], [ "Beverini", "N.", "" ], [ "Ortolan",...
Large scale square ring laser gyros with a length of four meters on each side are approaching a sensitivity of 1x10^-11 rad/s/sqrt(Hz). This is about the regime required to measure the gravitomagnetic effect (Lense Thirring) of the Earth. For an ensemble of linearly independent gyros each measurement signal depends upo...
2205.00115
Michael Dine
Michael Dine and Yan Yu
Challenges to Obtaining Results for Real QCD from SUSY QCD
21 pages Footnote and references added
null
null
null
hep-ph hep-th
http://creativecommons.org/licenses/by/4.0/
Recently there have been proposals to understand features of QCD such as confinement and chiral symmetry breaking by considering supersymmetric versions of the theory with various patterns of soft breaking. In this note we recall that with small soft breakings, SUSY QCD is suggestive of observed features of real QCD....
[ { "created": "Sat, 30 Apr 2022 00:11:34 GMT", "version": "v1" }, { "created": "Wed, 4 May 2022 01:39:11 GMT", "version": "v2" }, { "created": "Mon, 9 May 2022 18:35:31 GMT", "version": "v3" } ]
2022-05-11
[ [ "Dine", "Michael", "" ], [ "Yu", "Yan", "" ] ]
Recently there have been proposals to understand features of QCD such as confinement and chiral symmetry breaking by considering supersymmetric versions of the theory with various patterns of soft breaking. In this note we recall that with small soft breakings, SUSY QCD is suggestive of observed features of real QCD. B...
2407.06640
Szymon Cedrowski
Jerzy Paczos, Szymon Cedrowski, Krzysztof Turzy\'nski, Andrzej Dragan
Higgs field as a source of tachyons
5 pages
null
null
null
hep-ph gr-qc
http://creativecommons.org/licenses/by/4.0/
We investigate the Brout-Englert-Higgs mechanism of spontaneous symmetry breaking and show that before the symmetry was broken, the interaction of Higgs fields with massless gauge fields inevitably lead to the production of tachyons.
[ { "created": "Tue, 9 Jul 2024 08:09:14 GMT", "version": "v1" } ]
2024-07-10
[ [ "Paczos", "Jerzy", "" ], [ "Cedrowski", "Szymon", "" ], [ "Turzyński", "Krzysztof", "" ], [ "Dragan", "Andrzej", "" ] ]
We investigate the Brout-Englert-Higgs mechanism of spontaneous symmetry breaking and show that before the symmetry was broken, the interaction of Higgs fields with massless gauge fields inevitably lead to the production of tachyons.
0803.4309
Takashi Tamaki
Takashi Tamaki
Post-Newtonian parameters in the tensor-vector-scalar theory
8 pages, no figures, to be published in PRD
Phys.Rev.D77:124020,2008
10.1103/PhysRevD.77.124020
null
gr-qc astro-ph hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate post-Newtonian parameters in the tensor-vector-scalar (TeVeS) theory in a general setting while previous researches have been restricted to spherically symmetric cases. Based on the assumption that both the physical and Einstein metrics have Minkowski metric at the zeroth order, we show $\gamma =1$ as ...
[ { "created": "Sun, 30 Mar 2008 09:16:24 GMT", "version": "v1" }, { "created": "Sun, 18 May 2008 02:48:31 GMT", "version": "v2" } ]
2008-11-26
[ [ "Tamaki", "Takashi", "" ] ]
We investigate post-Newtonian parameters in the tensor-vector-scalar (TeVeS) theory in a general setting while previous researches have been restricted to spherically symmetric cases. Based on the assumption that both the physical and Einstein metrics have Minkowski metric at the zeroth order, we show $\gamma =1$ as in...
1302.6433
Cyrille Marquet
Javier L. Albacete, Adrian Dumitru and Cyrille Marquet
The initial state of heavy-ion collisions
31 pages, 10 figures, Invited review to appear in a special issue of IJMPA
Int. J. Mod. Phys. A 28, 1340010 (2013)
10.1142/S0217751X13400101
RBRC 1001
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a brief review of recent theoretical developments and related phenomenological approaches for understanding the initial state of heavy-ion collisions, with emphasis on the Color Glass Condensate formalism.
[ { "created": "Tue, 26 Feb 2013 13:52:30 GMT", "version": "v1" } ]
2013-05-03
[ [ "Albacete", "Javier L.", "" ], [ "Dumitru", "Adrian", "" ], [ "Marquet", "Cyrille", "" ] ]
We present a brief review of recent theoretical developments and related phenomenological approaches for understanding the initial state of heavy-ion collisions, with emphasis on the Color Glass Condensate formalism.
2407.18724
Yuming Wang
Yong-Kang Huang, Bo-Xuan Shi, Yu-Ming Wang, Xue-Chen Zhao
Next-to-Leading-Order QCD Predictions for the Nucleon Form Factors
7+4 pages, 4 figures
null
null
null
hep-ph hep-ex hep-lat
http://creativecommons.org/licenses/by/4.0/
We accomplish for the first time the next-to-leading-order QCD computations of the leading-twist contributions to the Dirac form factors of both the proton and the neutron by applying the hard-collinear factorization theorem rigorously. The resulting predictions for these baryon form factors indicate that the one-loo...
[ { "created": "Fri, 26 Jul 2024 13:20:09 GMT", "version": "v1" } ]
2024-07-29
[ [ "Huang", "Yong-Kang", "" ], [ "Shi", "Bo-Xuan", "" ], [ "Wang", "Yu-Ming", "" ], [ "Zhao", "Xue-Chen", "" ] ]
We accomplish for the first time the next-to-leading-order QCD computations of the leading-twist contributions to the Dirac form factors of both the proton and the neutron by applying the hard-collinear factorization theorem rigorously. The resulting predictions for these baryon form factors indicate that the one-loop ...
hep-ph/9305297
Don Pedro
E. Bagan & P. Gosdzinsky
Renormalizabilty of TH Heavy Quark Effective Theory
LATEX/10 pages/ UAB-FT-314/ (References have been added.) figures (PS) available on request. Unfortunately some mails asking for copies by conventional mail were lost. Please resend requests
Phys.Lett. B320 (1994) 123-129
10.1016/0370-2693(94)90834-6
null
hep-ph
null
We show that the Heavy Quark Effective Theory is renormalizable perturbatively. We also show that there exist renormalization schemes in which the infinite quark mass limit of any QCD Green function is exactly given by the corresponding Green function of the Heavy Quark Effective Theory. All this is accomplished whil...
[ { "created": "Fri, 21 May 1993 10:52:16 GMT", "version": "v1" }, { "created": "Fri, 2 Jul 1993 09:05:30 GMT", "version": "v2" } ]
2009-10-22
[ [ "Bagan", "E.", "" ], [ "Gosdzinsky", "P.", "" ] ]
We show that the Heavy Quark Effective Theory is renormalizable perturbatively. We also show that there exist renormalization schemes in which the infinite quark mass limit of any QCD Green function is exactly given by the corresponding Green function of the Heavy Quark Effective Theory. All this is accomplished while ...
gr-qc/0201021
Lior M. Burko
Lior M. Burko
Instability of scalar charges in 1+1D and 2+1D
4 pages, RevTeX4
Class.Quant.Grav. 19 (2002) 3745-3752
10.1088/0264-9381/19/14/313
null
gr-qc hep-th
null
We study the phenomenon of mass loss by a scalar charge -- a point particle which acts as a source for a (non-interacting) scalar field -- in (1+1)-dimensional and (2+1)-dimensional flat spacetime. We find that such particles are unstable against self interaction: they lose their mass through the emission of monopole...
[ { "created": "Mon, 7 Jan 2002 16:00:01 GMT", "version": "v1" } ]
2009-11-07
[ [ "Burko", "Lior M.", "" ] ]
We study the phenomenon of mass loss by a scalar charge -- a point particle which acts as a source for a (non-interacting) scalar field -- in (1+1)-dimensional and (2+1)-dimensional flat spacetime. We find that such particles are unstable against self interaction: they lose their mass through the emission of monopole r...
1905.11585
Thomas A. Trainor
Thomas A. Trainor
Questioning quark-gluon plasma formation in small collision systems
26 pages, 19 figures, four figures updated
null
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A recent letter published in the journal Nature reports observation at the relativistic heavy ion collider (RHIC) of quark-gluon plasma (QGP) formation in small asymmetric collision systems denoted as $p$-Au, $d$-Au and $^3$He-Au. The claimed phenomenon, described as `short-lived QGP droplets,' is inferred from a com...
[ { "created": "Tue, 28 May 2019 03:02:58 GMT", "version": "v1" }, { "created": "Thu, 6 Jun 2019 19:00:59 GMT", "version": "v2" } ]
2019-06-10
[ [ "Trainor", "Thomas A.", "" ] ]
A recent letter published in the journal Nature reports observation at the relativistic heavy ion collider (RHIC) of quark-gluon plasma (QGP) formation in small asymmetric collision systems denoted as $p$-Au, $d$-Au and $^3$He-Au. The claimed phenomenon, described as `short-lived QGP droplets,' is inferred from a combi...
1408.3013
Antonio Morais
D. J. Miller, A. P. Morais
Supersymmetric SO(10) Grand Unification at the LHC and Beyond
Published version
JHEP 1412 (2014) 132
10.1007/JHEP12(2014)132
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study models of supersymmetric grand unification based on the SO(10) gauge group. We investigate scenarios of non-universal gaugino masses including models containing a mixture of two representations of hidden sector chiral superfields. We analyse the effect of excluding mu from the fine-tuning measure, and confro...
[ { "created": "Wed, 13 Aug 2014 14:19:06 GMT", "version": "v1" }, { "created": "Tue, 19 Aug 2014 16:41:16 GMT", "version": "v2" }, { "created": "Sat, 27 Dec 2014 13:49:40 GMT", "version": "v3" } ]
2014-12-30
[ [ "Miller", "D. J.", "" ], [ "Morais", "A. P.", "" ] ]
We study models of supersymmetric grand unification based on the SO(10) gauge group. We investigate scenarios of non-universal gaugino masses including models containing a mixture of two representations of hidden sector chiral superfields. We analyse the effect of excluding mu from the fine-tuning measure, and confront...
1807.08896
Luca Buoninfante
Luca Buoninfante, Alan S. Cornell, Gerhard Harmsen, Alexey S. Koshelev, Gaetano Lambiase, Jo\~ao Marto, Anupam Mazumdar
Towards nonsingular rotating compact object in ghost-free infinite derivative gravity
11 pages, 2 figures. Version accepted for publication in PRD
Phys. Rev. D 98, 084041 (2018)
10.1103/PhysRevD.98.084041
null
gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The vacuum solution of Einstein's theory of general relativity provides a rotating metric with a ring singularity, which is covered by the inner and outer horizons, and an ergo region. In this paper, we will discuss how ghost-free, quadratic curvature, Infinite Derivative Gravity (IDG) may resolve the ring singularit...
[ { "created": "Tue, 24 Jul 2018 04:00:29 GMT", "version": "v1" }, { "created": "Tue, 27 Nov 2018 12:45:25 GMT", "version": "v2" } ]
2018-11-28
[ [ "Buoninfante", "Luca", "" ], [ "Cornell", "Alan S.", "" ], [ "Harmsen", "Gerhard", "" ], [ "Koshelev", "Alexey S.", "" ], [ "Lambiase", "Gaetano", "" ], [ "Marto", "João", "" ], [ "Mazumdar", "Anupam", "" ...
The vacuum solution of Einstein's theory of general relativity provides a rotating metric with a ring singularity, which is covered by the inner and outer horizons, and an ergo region. In this paper, we will discuss how ghost-free, quadratic curvature, Infinite Derivative Gravity (IDG) may resolve the ring singularity....
1308.5296
Tom Mertens
T. Mertens and P. Taels
Evolution of Light-Like Wilson Loops with a Self-Intersection in Loop Space
Correction of some small typos and small changes to the figures. To be submitted for publication to Phys Lett B
Phys.Lett. B727 2013 563-567
10.1016/j.physletb.2013.11.011
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recently, we proposed a general evolution equation for single quadrilateral Wilson loop on the light-cone. In present work, we study the energy evolution of a combination of two such loops that partially overlap or have a self-intersection. We show that, for a class of geometric variations, then evolution is consiste...
[ { "created": "Sat, 24 Aug 2013 04:46:44 GMT", "version": "v1" }, { "created": "Tue, 3 Sep 2013 20:39:28 GMT", "version": "v2" } ]
2014-01-14
[ [ "Mertens", "T.", "" ], [ "Taels", "P.", "" ] ]
Recently, we proposed a general evolution equation for single quadrilateral Wilson loop on the light-cone. In present work, we study the energy evolution of a combination of two such loops that partially overlap or have a self-intersection. We show that, for a class of geometric variations, then evolution is consistent...
1912.12501
Alexander Studenikin
Alexander Studenikin
Electromagnetic neutrinos: New constraints and new effects in oscillations
4 pages in LaTex, to appear in the proceedings of the 16th International Conference on Topics in Astroparticle and Underground Physics (TAUP 2019), 9-13 September 2019, Toyama, Japan. arXiv admin note: substantial text overlap with arXiv:1801.08887, arXiv:1912.12497
Journal of Physics: Conference Series 1468 (2020) 012196
10.1088/1742-6596/1468/1/012196
null
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A short overview of neutrino electromagnetic properties with focus on existed experimental constraints and future prospects is presented. The related new effect in neutrino flavour and spin-flavour oscillations in the transversal matter currents is introduced.
[ { "created": "Sat, 28 Dec 2019 18:26:13 GMT", "version": "v1" } ]
2020-04-10
[ [ "Studenikin", "Alexander", "" ] ]
A short overview of neutrino electromagnetic properties with focus on existed experimental constraints and future prospects is presented. The related new effect in neutrino flavour and spin-flavour oscillations in the transversal matter currents is introduced.
hep-ph/0512306
Cristian Pisano
Cristian Pisano
The Polarized and Unpolarized Photon Content of the Nucleon
PhD thesis, LaTeX, 164 pages
null
null
DO-TH 2005/12
hep-ph
null
In this thesis the polarized and unpolarized photon distributions of the nucleon (proton, neutron) $(\Delta)\gamma^N$, evaluated in the equivalent photon approximation (EPA), are computed theoretically and the possibility of their experimental determination is demonstrated. Both of them consist of two components: the...
[ { "created": "Thu, 22 Dec 2005 19:01:47 GMT", "version": "v1" } ]
2007-05-23
[ [ "Pisano", "Cristian", "" ] ]
In this thesis the polarized and unpolarized photon distributions of the nucleon (proton, neutron) $(\Delta)\gamma^N$, evaluated in the equivalent photon approximation (EPA), are computed theoretically and the possibility of their experimental determination is demonstrated. Both of them consist of two components: the e...
hep-ph/9703339
Korpa Csaba
C. L. Korpa
Complete spin structure of the pion-nucleon-loop delta self-energy
8 pages, LaTex (uses Revtex and epsf), 2 figures (included), errors in some expressions (including typos) corrected, numerical results affected very little, conclusions unchanged
Heavy Ion Phys. 5 (1997) 77-84; Erratum-ibid. 5 (1997) 319-320
10.1007/BF03157996
null
hep-ph nucl-th
null
The complete spin structure of the pion-nucleon-loop contribution to the delta self-energy and dressed propagator is calculated in vacuum, with the most general form of the pion-nucleon-delta vertex. The imaginary parts of the ten Lorentz-scalar coefficients are calculated in closed form, while the real parts are obt...
[ { "created": "Mon, 17 Mar 1997 09:37:50 GMT", "version": "v1" }, { "created": "Wed, 21 May 1997 13:12:24 GMT", "version": "v2" } ]
2022-02-23
[ [ "Korpa", "C. L.", "" ] ]
The complete spin structure of the pion-nucleon-loop contribution to the delta self-energy and dressed propagator is calculated in vacuum, with the most general form of the pion-nucleon-delta vertex. The imaginary parts of the ten Lorentz-scalar coefficients are calculated in closed form, while the real parts are obtai...
2304.02523
Joerg Jaeckel
Joerg Jaeckel, Valentina Montoya and Cedric Quint
A Quantum Perspective on Oscillation Frequencies in Axion Dark Matter Experiments
30 pages, 11 figures
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this note we look at the time evolution of signals in axion dark matter experiments from a quantum perspective. Our aim is not to contribute new results to the general discussion of the quantum/classical connection (which we do not) but rather to slightly illuminate the specific case of axion experiments. From the...
[ { "created": "Wed, 5 Apr 2023 15:47:24 GMT", "version": "v1" } ]
2023-04-06
[ [ "Jaeckel", "Joerg", "" ], [ "Montoya", "Valentina", "" ], [ "Quint", "Cedric", "" ] ]
In this note we look at the time evolution of signals in axion dark matter experiments from a quantum perspective. Our aim is not to contribute new results to the general discussion of the quantum/classical connection (which we do not) but rather to slightly illuminate the specific case of axion experiments. From the c...
hep-ph/9503434
Kostas Philippides
K. Philippides and A. Sirlin
LEADING VACUUM-POLARIZATION CONTRIBUTIONS TO THE RELATION BETWEEN POLE AND RUNNING MASSES
27 pages, 1 figure and 5 tables all included in the text in a compressed ps file
Nucl.Phys.B450:3-20,1995
10.1016/0550-3213(95)00264-S
NYU-TH-95/03/01
hep-ph
null
The vacuum--polarization contributions of ${\cal O}(b^{n-1} \al_s^n)$ to the relation between the pole--mass $M$ of a quark and the \MS parameter $\mh (M)$ are evaluated by a straightforward method. They are found to approximate very well the exact answer, known through ${\cal O}(\al_s^2)$, thus providing a simple ph...
[ { "created": "Sat, 25 Mar 1995 01:10:45 GMT", "version": "v1" } ]
2008-12-22
[ [ "Philippides", "K.", "" ], [ "Sirlin", "A.", "" ] ]
The vacuum--polarization contributions of ${\cal O}(b^{n-1} \al_s^n)$ to the relation between the pole--mass $M$ of a quark and the \MS parameter $\mh (M)$ are evaluated by a straightforward method. They are found to approximate very well the exact answer, known through ${\cal O}(\al_s^2)$, thus providing a simple phys...
1712.02537
Matteo Becchetti
Matteo Becchetti, Roberto Bonciani
Two-Loop Master Integrals for the Planar QCD Massive Corrections to Di-photon and Di-jet Hadro-production
20 pages, ancillary files
null
10.1007/JHEP01(2018)048
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present the analytic calculation of the Master Integrals necessary to compute the planar massive QCD corrections to Di-photon (and Di-jet) production at hadron colliders. The masters are evaluated by means of the differential equations method and expressed in terms of multiple polylogarithms and one- or two-fold i...
[ { "created": "Thu, 7 Dec 2017 08:57:24 GMT", "version": "v1" }, { "created": "Fri, 8 Dec 2017 09:12:20 GMT", "version": "v2" } ]
2018-02-14
[ [ "Becchetti", "Matteo", "" ], [ "Bonciani", "Roberto", "" ] ]
We present the analytic calculation of the Master Integrals necessary to compute the planar massive QCD corrections to Di-photon (and Di-jet) production at hadron colliders. The masters are evaluated by means of the differential equations method and expressed in terms of multiple polylogarithms and one- or two-fold int...
hep-ph/0209319
Stephan Durr
Stephan D\"urr
Lattice QCD data versus Chiral Perturbation Theory: the case of $M_\pi$
3 pages, 4 figures, ICHEP 2002, v2: one statement clarified, one ref. added
null
10.1016/S0920-5632(03)90688-8
DESY 02-160
hep-ph hep-lat
null
I present a selection of recent lattice data by major collaborations for the pseudo-Goldstone boson masses in full ($N_f=2$) QCD, where the valence quarks are chosen exactly degenerate with the sea quarks. At least the more chiral points should be consistent with Chiral Perturbation Theory for the latter to be useful...
[ { "created": "Thu, 26 Sep 2002 16:34:29 GMT", "version": "v1" }, { "created": "Fri, 27 Sep 2002 13:42:06 GMT", "version": "v2" } ]
2009-11-07
[ [ "Dürr", "Stephan", "" ] ]
I present a selection of recent lattice data by major collaborations for the pseudo-Goldstone boson masses in full ($N_f=2$) QCD, where the valence quarks are chosen exactly degenerate with the sea quarks. At least the more chiral points should be consistent with Chiral Perturbation Theory for the latter to be useful i...
hep-ph/0307004
Hiroyuki Abe
Hiroyuki Abe
Spontaneous and dynamical symmetry breaking in higher-dimensional space-time with boundary terms
Doctoral thesis, submitted to Department of Physics, Hiroshima University (February 2003), 110 pages, 38 figures
null
null
null
hep-ph hep-th
null
In this thesis we study physics beyond the standard model focusing on the quantum field theory in higher-dimensional space-time with some boundary terms. The boundary term causes nontrivial consequences about the vacuum structure of the higher-dimensional theory. We take particular note of two independent solutions t...
[ { "created": "Tue, 1 Jul 2003 04:27:52 GMT", "version": "v1" } ]
2007-05-23
[ [ "Abe", "Hiroyuki", "" ] ]
In this thesis we study physics beyond the standard model focusing on the quantum field theory in higher-dimensional space-time with some boundary terms. The boundary term causes nontrivial consequences about the vacuum structure of the higher-dimensional theory. We take particular note of two independent solutions to ...
hep-ph/0612356
Alexander Smirnov D.
A. D. Smirnov
On mass limits for leptoquarks from $ K_L^0 \to e^{\mp} \mu^{\pm}, B^0 \to e^{\mp} \tau^{\pm} $ decays
7 pages, 3 figures, submitted to Proceedings of the 14th International Seminar "Quarks'2006", Repino, St.Petersburg, Russia, May 19 - 25, 2006. Typos and mistake corrected, text and figures improved
null
null
YARU-HE-06/08
hep-ph
null
The contributions of the scalar leptoquark doublets into widths of the $K^0_L \to e^{\mp} \mu^{\pm}$, $B^0 \to e^{\mp} \tau^{\pm}$ decays are calculated in MQLS model with Higgs mechanism of the quark-lepton mass splitting. The resulted mass limits for the scalar leptoquarks are investigated in comparision with those...
[ { "created": "Thu, 28 Dec 2006 15:49:38 GMT", "version": "v1" }, { "created": "Sun, 4 Mar 2007 13:19:13 GMT", "version": "v2" } ]
2007-05-23
[ [ "Smirnov", "A. D.", "" ] ]
The contributions of the scalar leptoquark doublets into widths of the $K^0_L \to e^{\mp} \mu^{\pm}$, $B^0 \to e^{\mp} \tau^{\pm}$ decays are calculated in MQLS model with Higgs mechanism of the quark-lepton mass splitting. The resulted mass limits for the scalar leptoquarks are investigated in comparision with those f...
2303.07349
Gamal G.L. Nashed
G. G. L. Nashed and Shin'ichi Nojiri
Slow-rotating charged black hole solution in dynamical Chern-Simons modified gravity
20 pages 3 figures, will appear in Phys. Rev. D
null
10.1103/PhysRevD.107.064069
null
gr-qc hep-th
http://creativecommons.org/licenses/by/4.0/
The Chern-Simons (CS) gravity is a modified theory of Einstein's general relativity (GR). The CS theory arises from the low energy limit of string theory which involves anomaly correction to the Einstein-Hilbert action. The CS term is given by the product of the Pontryagin density with a scalar field. In this study, ...
[ { "created": "Sat, 11 Mar 2023 06:55:27 GMT", "version": "v1" } ]
2023-04-12
[ [ "Nashed", "G. G. L.", "" ], [ "Nojiri", "Shin'ichi", "" ] ]
The Chern-Simons (CS) gravity is a modified theory of Einstein's general relativity (GR). The CS theory arises from the low energy limit of string theory which involves anomaly correction to the Einstein-Hilbert action. The CS term is given by the product of the Pontryagin density with a scalar field. In this study, we...
hep-ph/0307232
Atsushi Hosaka
Atsushi Hosaka
Pentaquark states in a chiral potential
7 pages, 3 figures. Some errors in $s$ and $\bar s$ configurations are corrected
Phys.Lett. B571 (2003) 55-60
10.1016/j.physletb.2003.07.067
null
hep-ph
null
We discuss a possible interpretation for the pentaquark baryon $\Theta^+$ which has an exotic quantum number of strangeness $S = +1$. The role of the pion which modifies the structure of single-particle levels of quarks is examined. When the pion field is sufficiently strong, the ground state of five quarks for $\The...
[ { "created": "Fri, 18 Jul 2003 09:30:14 GMT", "version": "v1" }, { "created": "Mon, 1 Sep 2003 00:48:45 GMT", "version": "v2" } ]
2009-11-10
[ [ "Hosaka", "Atsushi", "" ] ]
We discuss a possible interpretation for the pentaquark baryon $\Theta^+$ which has an exotic quantum number of strangeness $S = +1$. The role of the pion which modifies the structure of single-particle levels of quarks is examined. When the pion field is sufficiently strong, the ground state of five quarks for $\Theta...
hep-ph/9708492
Katri Huitu
K. Huitu, P.N. Pandita and K. Puolam\"aki
Constraining the scales of supersymmetric left-right models
5 pages, Latex, talk given in Beyond the Standard Model V in Balholm, Norway
null
10.1063/1.54501
HIP-1997-41/TH
hep-ph
null
We'll review our study of the constraints on the scales in the supersymmetric left-right model (SUSYLR). The conservation of color and electromagnetism in the ground state of the theory implies a relation between right-handed gauge boson mass and soft squark mass. Furthermore, in general for heavy $W_R$, $\tan\alpha$...
[ { "created": "Fri, 29 Aug 1997 11:48:13 GMT", "version": "v1" } ]
2009-10-30
[ [ "Huitu", "K.", "" ], [ "Pandita", "P. N.", "" ], [ "Puolamäki", "K.", "" ] ]
We'll review our study of the constraints on the scales in the supersymmetric left-right model (SUSYLR). The conservation of color and electromagnetism in the ground state of the theory implies a relation between right-handed gauge boson mass and soft squark mass. Furthermore, in general for heavy $W_R$, $\tan\alpha$ i...
1702.01429
Bala Subramanian
Chethan Krishnan, Shubham Maheshwari, P. N. Bala Subramanian
Robin Gravity
10 pages. Contribution to the proceedings of the IF-YITP Symposium VI, Phitsanulok, Thailand. Aug 3-5, 2016. v2: very minor corrections to the proceedings published version
null
10.1088/1742-6596/883/1/012011
null
gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We write down a Robin boundary term for general relativity. The construction relies on the Neumann result of arXiv:1605.01603 in an essential way. This is unlike in mechanics and (polynomial) field theory, where two formulations of the Robin problem exist: one with Dirichlet as the natural limiting case, and another ...
[ { "created": "Sun, 5 Feb 2017 16:48:51 GMT", "version": "v1" }, { "created": "Fri, 1 Sep 2017 10:05:16 GMT", "version": "v2" } ]
2017-09-13
[ [ "Krishnan", "Chethan", "" ], [ "Maheshwari", "Shubham", "" ], [ "Subramanian", "P. N. Bala", "" ] ]
We write down a Robin boundary term for general relativity. The construction relies on the Neumann result of arXiv:1605.01603 in an essential way. This is unlike in mechanics and (polynomial) field theory, where two formulations of the Robin problem exist: one with Dirichlet as the natural limiting case, and another wi...
hep-ph/0211046
Kazumasa Ohkuma
Toshiyuki Morii (Kobe Univ.) and Kazumasa Ohkuma (Yokohama National Univ.)
Charmed Hadron Production in Polarized pp Collisions
1+6 pages, Latex2e, 4 eps figures, Talk given at SPIN 2002, Brookhaven National Laboratory, September 9-13, 2002, To appear in the Proceedings
null
10.1063/1.1607154
KOBE-FHD-02-05, YNU-HEPTH-02-103
hep-ph
null
To extract information about polarized gluons in the proton, production of charmed hadrons, in particular, \Lambda_c^+ baryon in pp collisions was studied. We calculated the transverse momentum distribution and the pseudo-rapidity distribution of the spin correlation asymmetry A_{LL} between the initial proton and th...
[ { "created": "Tue, 5 Nov 2002 05:51:04 GMT", "version": "v1" } ]
2009-11-07
[ [ "Morii", "Toshiyuki", "", "Kobe Univ." ], [ "Ohkuma", "Kazumasa", "", "Yokohama National\n Univ." ] ]
To extract information about polarized gluons in the proton, production of charmed hadrons, in particular, \Lambda_c^+ baryon in pp collisions was studied. We calculated the transverse momentum distribution and the pseudo-rapidity distribution of the spin correlation asymmetry A_{LL} between the initial proton and the ...
1112.5923
Yue-Liang Wu
Ling-Xiao Cui, Shingo Takeuchi, Yue-Liang Wu
Thermal Mass Spectra of Vector and Axial-Vector Mesons in Predictive Soft-Wall AdS/QCD Model
20 pages, 8 figures, chiral symmetry restoration is explained in more detail, references added, published version in JHEP
null
10.1007/JHEP04(2012)144
null
hep-ph hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We extend the predictive soft-wall AdS/QCD model to a thermodynamic model by considering the black hole metric. A modified bulk vacuum expectation value and a modified coefficient for the quartic term in the bulk scalar potential are introduced to obtain a smooth dilaton solution for computing the spectral functions ...
[ { "created": "Tue, 27 Dec 2011 04:52:16 GMT", "version": "v1" }, { "created": "Fri, 4 May 2012 01:23:14 GMT", "version": "v2" } ]
2015-06-03
[ [ "Cui", "Ling-Xiao", "" ], [ "Takeuchi", "Shingo", "" ], [ "Wu", "Yue-Liang", "" ] ]
We extend the predictive soft-wall AdS/QCD model to a thermodynamic model by considering the black hole metric. A modified bulk vacuum expectation value and a modified coefficient for the quartic term in the bulk scalar potential are introduced to obtain a smooth dilaton solution for computing the spectral functions of...
1402.7078
Johannes Henn
Johannes M. Henn, Kirill Melnikov, Vladimir A. Smirnov
Two-loop planar master integrals for the production of off-shell vector bosons in hadron collisions
28 pages, many figures; ancillary files included with arXiv submission
null
10.1007/s13130-014-8200-x
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We describe the calculation of all planar master integrals that are needed for the computation of NNLO QCD corrections to the production of two off-shell vector bosons in hadron collisions. The most complicated representatives of integrals in this class are the two-loop four-point functions where two external lines a...
[ { "created": "Thu, 27 Feb 2014 21:00:22 GMT", "version": "v1" } ]
2015-06-18
[ [ "Henn", "Johannes M.", "" ], [ "Melnikov", "Kirill", "" ], [ "Smirnov", "Vladimir A.", "" ] ]
We describe the calculation of all planar master integrals that are needed for the computation of NNLO QCD corrections to the production of two off-shell vector bosons in hadron collisions. The most complicated representatives of integrals in this class are the two-loop four-point functions where two external lines are...
1509.06436
Zhi-Gang Wang
Zhi-Gang Wang
Analysis of the ${\frac{1}{2}}^{\pm}$ pentaquark states in the diquark-diquark-antiquark model with QCD sum rules
34 pages, 16 figures. arXiv admin note: substantial text overlap with arXiv:1508.04189
Eur.Phys.J.C76 (2016) 142
10.1140/epjc/s10052-016-3983-2
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this article, we construct both the axialvector-diquark-axialvector-diquark-antiquark type and axialvector-diquark-scalar-diquark-antiquark type interpolating currents, then calculate the contributions of the vacuum condensates up to dimension-10 in the operator product expansion, and study the masses and pole res...
[ { "created": "Tue, 22 Sep 2015 00:55:07 GMT", "version": "v1" }, { "created": "Tue, 22 Dec 2015 02:16:19 GMT", "version": "v2" }, { "created": "Tue, 16 Feb 2016 03:30:25 GMT", "version": "v3" } ]
2016-03-16
[ [ "Wang", "Zhi-Gang", "" ] ]
In this article, we construct both the axialvector-diquark-axialvector-diquark-antiquark type and axialvector-diquark-scalar-diquark-antiquark type interpolating currents, then calculate the contributions of the vacuum condensates up to dimension-10 in the operator product expansion, and study the masses and pole resid...
2401.15134
Ahmad Al-Badawi
Ahmad Al-Badawi and M.Q. Owaidat
Particle dynamics and shadow of a regular non-minimal magnetic black hole
null
General Relativity and Gravitation, (2023) 55:131
null
null
gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, we study the dynamics of a test particle around a regular black hole (BH) in a non-minimal Einstein Yang Mills (EYM) theory and examine the BH shadow. The EYM theory is a non-minimally coupled theory in which curvature couples to non-Abelian gauge fields. We investigate particle motion with parameters ...
[ { "created": "Fri, 26 Jan 2024 17:05:40 GMT", "version": "v1" } ]
2024-01-30
[ [ "Al-Badawi", "Ahmad", "" ], [ "Owaidat", "M. Q.", "" ] ]
In this paper, we study the dynamics of a test particle around a regular black hole (BH) in a non-minimal Einstein Yang Mills (EYM) theory and examine the BH shadow. The EYM theory is a non-minimally coupled theory in which curvature couples to non-Abelian gauge fields. We investigate particle motion with parameters in...
gr-qc/0310028
Yousuke Itoh
Yousuke Itoh, Toshifumi Futamase
New derivation of a third post-Newtonian equation of motion for relativistic compact binaries without ambiguity
6 pages, No figure, Revised version,clarity improved, accepted for publication in Phys. Rev. D.(R)
Phys.Rev. D68 (2003) 121501
10.1103/PhysRevD.68.121501
null
gr-qc
null
A third post-Newtonian (3 PN) equation of motion for an inspiralling binary consisting of two spherical compact stars with strong internal gravity is derived under harmonic coordinate condition using the strong field point particle limit. The equation of motion is complete in a sense that it is Lorentz invariant in t...
[ { "created": "Mon, 6 Oct 2003 13:29:28 GMT", "version": "v1" }, { "created": "Wed, 14 Jan 2004 10:29:14 GMT", "version": "v2" } ]
2009-11-10
[ [ "Itoh", "Yousuke", "" ], [ "Futamase", "Toshifumi", "" ] ]
A third post-Newtonian (3 PN) equation of motion for an inspiralling binary consisting of two spherical compact stars with strong internal gravity is derived under harmonic coordinate condition using the strong field point particle limit. The equation of motion is complete in a sense that it is Lorentz invariant in the...
hep-ph/0612043
Francois Arleo
Francois Arleo and Vi-Nham Tram
A systematic study of J/psi suppression in cold nuclear matter
25 pages, 5 figures
Eur.Phys.J.C55:449-461,2008
10.1140/epjc/s10052-008-0604-8
CERN-PH-TH/2006-189, LAPTH-1163/06
hep-ph nucl-ex nucl-th
null
Based on a Glauber model, a statistical analysis of all mid-rapidity J/psi hadroproduction and leptoproduction data on nuclear targets is carried out. This allows us to determine the J/psi-nucleon inelastic cross section, whose knowledge is crucial to interpret the J/psi suppression observed in heavy-ion collisions, ...
[ { "created": "Tue, 5 Dec 2006 13:35:18 GMT", "version": "v1" } ]
2008-11-26
[ [ "Arleo", "Francois", "" ], [ "Tram", "Vi-Nham", "" ] ]
Based on a Glauber model, a statistical analysis of all mid-rapidity J/psi hadroproduction and leptoproduction data on nuclear targets is carried out. This allows us to determine the J/psi-nucleon inelastic cross section, whose knowledge is crucial to interpret the J/psi suppression observed in heavy-ion collisions, at...
gr-qc/0311001
Merced Montesinos
Merced Montesinos
The double role of Einstein's equations: as equations of motion and as vanishing energy-momentum tensor
7 pages, no figures, latex file. Contribution to the meeting in honor of Plebanski. Any comments on this issue are welcome
null
null
null
gr-qc hep-th physics.class-ph
null
Diffeomorphism covariant theories with dynamical background metric, like gravity coupled to matter fields in the way expressed by Einstein-Hilbert's action or relativistic strings described by Polyakov's action, have `on-shell' vanishing energy-momentum tensor $t_{\mu\nu}$ because $t_{\mu\nu}$ is, essentially, the Eu...
[ { "created": "Fri, 31 Oct 2003 22:22:29 GMT", "version": "v1" } ]
2007-05-23
[ [ "Montesinos", "Merced", "" ] ]
Diffeomorphism covariant theories with dynamical background metric, like gravity coupled to matter fields in the way expressed by Einstein-Hilbert's action or relativistic strings described by Polyakov's action, have `on-shell' vanishing energy-momentum tensor $t_{\mu\nu}$ because $t_{\mu\nu}$ is, essentially, the Eule...
1305.4624
Shahen Hacyan
Shahen Hacyan
Interaction of light with gravitational waves
null
null
null
null
gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The physical properties of electromagnetic waves in the presence of a gravitational plane wave are analyzed. Formulas for the Stokes parameters describing the polarization of light are obtained in closed form. The particular case of a constant amplitude gravitational wave is worked out explicitly.
[ { "created": "Mon, 20 May 2013 19:54:35 GMT", "version": "v1" } ]
2013-05-21
[ [ "Hacyan", "Shahen", "" ] ]
The physical properties of electromagnetic waves in the presence of a gravitational plane wave are analyzed. Formulas for the Stokes parameters describing the polarization of light are obtained in closed form. The particular case of a constant amplitude gravitational wave is worked out explicitly.
hep-ph/0703208
Edward Shuryak
Edward Shuryak
Emerging Theory of Strongly Coupled Quark-Gluon Plasma
Written contribution: a talk at Yukawa Institute meeting (YUKIS) November 2006
null
10.1143/PTPS.168.320
null
hep-ph
null
RHIC data have shown robust collective flows, including recent spectacular ``conical flow'' from quenched jets: that confirms that QGP above the critical line is in a strongly coupled regime. One way to study Non-Abelian classical strongly coupled plasmas is via molecular dynamics, which was recently extended to plas...
[ { "created": "Mon, 19 Mar 2007 21:13:50 GMT", "version": "v1" } ]
2009-11-13
[ [ "Shuryak", "Edward", "" ] ]
RHIC data have shown robust collective flows, including recent spectacular ``conical flow'' from quenched jets: that confirms that QGP above the critical line is in a strongly coupled regime. One way to study Non-Abelian classical strongly coupled plasmas is via molecular dynamics, which was recently extended to plasma...
hep-ph/0305256
Marco Cavagli\`a
Marco Cavaglia
Black hole multiplicity at particle colliders (Do black holes radiate mainly on the brane?)
RevTex, 9 pages, no figures
Phys.Lett. B569 (2003) 7-13
10.1016/j.physletb.2003.06.065
ICG 03/10
hep-ph gr-qc hep-th
null
If gravity becomes strong at the TeV scale, we may have the chance to produce black holes at particle colliders. In this paper we study some experimental signatures of black hole production in TeV-gravity theories. In contrast with the usual lore, we show that the black hole energy loss in the bulk during the Hawking...
[ { "created": "Thu, 22 May 2003 22:34:13 GMT", "version": "v1" } ]
2009-11-10
[ [ "Cavaglia", "Marco", "" ] ]
If gravity becomes strong at the TeV scale, we may have the chance to produce black holes at particle colliders. In this paper we study some experimental signatures of black hole production in TeV-gravity theories. In contrast with the usual lore, we show that the black hole energy loss in the bulk during the Hawking e...
1104.4791
Geraldine Servant
Thomas Konstandin and Geraldine Servant
Cosmological Consequences of Nearly Conformal Dynamics at the TeV scale
22 pages, 7 figures
null
10.1088/1475-7516/2011/12/009
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Nearly conformal dynamics at the TeV scale as motivated by the hierarchy problem can be characterized by a stage of significant supercooling at the electroweak epoch. This has important cosmological consequences. In particular, a common assumption about the history of the universe is that the reheating temperature is...
[ { "created": "Mon, 25 Apr 2011 20:01:17 GMT", "version": "v1" } ]
2015-05-28
[ [ "Konstandin", "Thomas", "" ], [ "Servant", "Geraldine", "" ] ]
Nearly conformal dynamics at the TeV scale as motivated by the hierarchy problem can be characterized by a stage of significant supercooling at the electroweak epoch. This has important cosmological consequences. In particular, a common assumption about the history of the universe is that the reheating temperature is h...
gr-qc/0506029
Matt Visser
Matt Visser (Victoria University of Wellington) and Silke Weinfurtner (Victoria University of Wellington)
Massive Klein--Gordon equation from a BEC-based analogue spacetime
V1: 10 pages; uses revtex4; V2: two references and brief comments added
Phys.Rev. D72 (2005) 044020
10.1103/PhysRevD.72.044020
null
gr-qc
null
We extend the "analogue spacetime" programme by investigating a condensed-matter system that is in principle capable of simulating the massive Klein--Gordon equation in curved spacetime. Since many elementary particles have mass, this is an essential step in building realistic analogue models, and a first step toward...
[ { "created": "Mon, 6 Jun 2005 07:28:13 GMT", "version": "v1" }, { "created": "Wed, 8 Jun 2005 08:48:39 GMT", "version": "v2" } ]
2009-11-11
[ [ "Visser", "Matt", "", "Victoria University of Wellington" ], [ "Weinfurtner", "Silke", "", "Victoria University of Wellington" ] ]
We extend the "analogue spacetime" programme by investigating a condensed-matter system that is in principle capable of simulating the massive Klein--Gordon equation in curved spacetime. Since many elementary particles have mass, this is an essential step in building realistic analogue models, and a first step towards ...
2109.00549
Sebastian Schenk
Sebastian Schenk
The Breakdown of Resummed Perturbation Theory at High Energies
28 pages, 3 figures. v2: minor modifications, references added
null
10.1007/JHEP03(2022)100
IPPP/21/23
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Calculations of high-energy processes involving the production of a large number of particles in weakly-coupled quantum field theories have previously signaled the need for novel non-perturbative behavior or even new physical phenomena. In some scenarios, already tree-level computations may enter the regime of large-...
[ { "created": "Wed, 1 Sep 2021 18:00:02 GMT", "version": "v1" }, { "created": "Tue, 15 Mar 2022 15:54:45 GMT", "version": "v2" } ]
2022-04-13
[ [ "Schenk", "Sebastian", "" ] ]
Calculations of high-energy processes involving the production of a large number of particles in weakly-coupled quantum field theories have previously signaled the need for novel non-perturbative behavior or even new physical phenomena. In some scenarios, already tree-level computations may enter the regime of large-or...
2308.13206
Sagar Soni V
A. H. Hasmani, Sagar V. Soni and Ravi Panchal
Electromagnetic Multipoles for Morris-Thorne Wormhole
11 pages
null
null
null
gr-qc math-ph math.MP
http://creativecommons.org/licenses/by/4.0/
Wormholes are interesting space-time structures connecting two asymptotic regions found in a universe or multiverse and are solutions to Einstein's field equations. These objects have many interesting features as far as physics is concerned. Morris and Thorne introduced traversable wormholes, which increases the poss...
[ { "created": "Fri, 25 Aug 2023 07:03:29 GMT", "version": "v1" } ]
2023-08-28
[ [ "Hasmani", "A. H.", "" ], [ "Soni", "Sagar V.", "" ], [ "Panchal", "Ravi", "" ] ]
Wormholes are interesting space-time structures connecting two asymptotic regions found in a universe or multiverse and are solutions to Einstein's field equations. These objects have many interesting features as far as physics is concerned. Morris and Thorne introduced traversable wormholes, which increases the possib...
gr-qc/0010042
S. Shankaranarayanan
S. Shankaranarayanan, T. Padmanabhan and K. Srinivasan
Hawking radiation in different coordinate settings: Complex paths approach
18 pages, 2 figures, Uses IOP style file; final version; accepted in Class. Quant. Grav
Class.Quant.Grav. 19 (2002) 2671-2688
10.1088/0264-9381/19/10/310
null
gr-qc
null
We apply the technique of complex paths to obtain Hawking radiation in different coordinate representations of the Schwarzschild space-time. The coordinate representations we consider do not possess a singularity at the horizon unlike the standard Schwarzschild coordinate. However, the event horizon manifests itself ...
[ { "created": "Wed, 11 Oct 2000 06:35:47 GMT", "version": "v1" }, { "created": "Tue, 23 Jan 2001 05:53:04 GMT", "version": "v2" }, { "created": "Fri, 15 Jun 2001 08:56:54 GMT", "version": "v3" }, { "created": "Mon, 1 Apr 2002 17:09:48 GMT", "version": "v4" } ]
2009-10-31
[ [ "Shankaranarayanan", "S.", "" ], [ "Padmanabhan", "T.", "" ], [ "Srinivasan", "K.", "" ] ]
We apply the technique of complex paths to obtain Hawking radiation in different coordinate representations of the Schwarzschild space-time. The coordinate representations we consider do not possess a singularity at the horizon unlike the standard Schwarzschild coordinate. However, the event horizon manifests itself as...
hep-ph/0305168
C. A. de S. Pires
A. Gusso, C. A. de S. Pires, and P. S. Rodrigues da Silva
Neutrino Mixing and the Minimal 3-3-1 Model
two references add, minor chages, accepted for publication in MPLA
Mod.Phys.Lett. A18 (2003) 1849
10.1142/S0217732303011630
null
hep-ph
null
In the minimal 3-3-1 model charged leptons come in a non-diagonal basis. Moreover the Yukawa interactions of the model lead to a non-hermitian charged lepton mass matrix. In other words, the minimal 3-3-1 model presents a very complex lepton mixing. In view of this we check rigorously if the possible textures of the ...
[ { "created": "Thu, 15 May 2003 16:16:01 GMT", "version": "v1" }, { "created": "Sat, 5 Jul 2003 19:58:05 GMT", "version": "v2" } ]
2009-11-10
[ [ "Gusso", "A.", "" ], [ "Pires", "C. A. de S.", "" ], [ "da Silva", "P. S. Rodrigues", "" ] ]
In the minimal 3-3-1 model charged leptons come in a non-diagonal basis. Moreover the Yukawa interactions of the model lead to a non-hermitian charged lepton mass matrix. In other words, the minimal 3-3-1 model presents a very complex lepton mixing. In view of this we check rigorously if the possible textures of the le...
hep-ph/0207146
null
D. Metaxas (Athens, Tech. U.)
Hard thermal loops with a background plasma velocity
11 pages, no figures
Europhys.Lett.61:599-605,2003
10.1209/epl/i2003-00113-x
null
hep-ph
null
I consider the calculation of the two and three-point functions for QED at finite temperature in the presence of a background plasma velocity. The final expressions are consistent with Lorentz invariance, gauge invariance and current conservation, pointing to a straightforward generalization of the hard thermal loop ...
[ { "created": "Thu, 11 Jul 2002 13:12:39 GMT", "version": "v1" } ]
2010-12-17
[ [ "Metaxas", "D.", "", "Athens, Tech. U." ] ]
I consider the calculation of the two and three-point functions for QED at finite temperature in the presence of a background plasma velocity. The final expressions are consistent with Lorentz invariance, gauge invariance and current conservation, pointing to a straightforward generalization of the hard thermal loop fo...
1308.4953
Yaser Tavakoli
Joao Marto, Yaser Tavakoli, Paulo Vargas Moniz
Improved dynamics and gravitational collapse of tachyon field coupled with a barotropic fluid
Version accepted in IJMPD
Int. J. Mod. Phys. D Vol. 24, No. 4 (2015) 1550025
10.1142/S021827181550025X
null
gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider a spherically symmetric gravitational collapse of a tachyon field with an inverse square potential, which is coupled with a barotropic fluid. By employing an holonomy correction imported from loop quantum cosmology, we analyse the dynamics of the collapse within a semiclassical description. Using a dynami...
[ { "created": "Thu, 22 Aug 2013 18:42:59 GMT", "version": "v1" }, { "created": "Mon, 16 Dec 2013 17:38:39 GMT", "version": "v2" }, { "created": "Thu, 15 Jan 2015 00:02:08 GMT", "version": "v3" } ]
2015-01-16
[ [ "Marto", "Joao", "" ], [ "Tavakoli", "Yaser", "" ], [ "Moniz", "Paulo Vargas", "" ] ]
We consider a spherically symmetric gravitational collapse of a tachyon field with an inverse square potential, which is coupled with a barotropic fluid. By employing an holonomy correction imported from loop quantum cosmology, we analyse the dynamics of the collapse within a semiclassical description. Using a dynamica...
1404.0009
Pasquale Di Bari
Pasquale Di Bari (Southampton U.), Stephen F. King (Southampton U.), Christoph Luhn (Siegen U.), Alexander Merle (Southampton U.), Angnis Schmidt-May (Stockholm U., OKC & Stockholm U.)
Radiative Inflation and Dark Energy RIDEs Again after BICEP2
13 pages, 4 figures; v2: Note added, matches JCAP published version
null
10.1088/1475-7516/2014/08/040
SI-HEP-2014-08, QFET-2014-04
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Following the ground-breaking measurement of the tensor-to-scalar ratio $r = 0.20^{+0.07}_{- 0.05}$ by the BICEP2 collaboration, we perform a statistical analysis of a model that combines Radiative Inflation with Dark Energy (RIDE) based on the $M^2 |\Phi|^2 \ln \left(|\Phi|^2/\Lambda^2 \right)$ potential and compare...
[ { "created": "Mon, 31 Mar 2014 20:00:05 GMT", "version": "v1" }, { "created": "Tue, 2 Sep 2014 13:27:49 GMT", "version": "v2" } ]
2015-06-19
[ [ "Di Bari", "Pasquale", "", "Southampton U." ], [ "King", "Stephen F.", "", "Southampton U." ], [ "Luhn", "Christoph", "", "Siegen U." ], [ "Merle", "Alexander", "", "Southampton U." ], [ "Schmidt-May", "Angnis", "", "S...
Following the ground-breaking measurement of the tensor-to-scalar ratio $r = 0.20^{+0.07}_{- 0.05}$ by the BICEP2 collaboration, we perform a statistical analysis of a model that combines Radiative Inflation with Dark Energy (RIDE) based on the $M^2 |\Phi|^2 \ln \left(|\Phi|^2/\Lambda^2 \right)$ potential and compare i...
1907.13160
William Shepherd
Eduard Keilmann and William Shepherd
Dijets at Tevatron Cannot Constrain SMEFT Four-Quark Operators
13 pages, 3 figures
null
10.1007/JHEP09(2019)086
MITP/19-054
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore the sensitivity of Tevatron data to heavy new physics effects in differential dijet production rates using the SMEFT in light of the fact that consistent and conservative constraints from the LHC cannot cover relatively low cutoff scales in the EFT. In contrast to the results quoted by the experimental col...
[ { "created": "Tue, 30 Jul 2019 18:12:36 GMT", "version": "v1" } ]
2019-10-02
[ [ "Keilmann", "Eduard", "" ], [ "Shepherd", "William", "" ] ]
We explore the sensitivity of Tevatron data to heavy new physics effects in differential dijet production rates using the SMEFT in light of the fact that consistent and conservative constraints from the LHC cannot cover relatively low cutoff scales in the EFT. In contrast to the results quoted by the experimental colla...
hep-ph/9605383
Peter Landshoff
P V Landshoff
The Soft Pomeron
14 pages, plain tex, 10 figures embedded with epsf (Talk at DIS '96, Rome, April 1996)
null
null
DAMTP 96/48
hep-ph
null
The soft pomeron successfully correlates a wide variety of data. Its properties seem rather simple: it couples to single quarks and its coupling factorises.
[ { "created": "Thu, 23 May 1996 15:31:19 GMT", "version": "v1" } ]
2007-05-23
[ [ "Landshoff", "P V", "" ] ]
The soft pomeron successfully correlates a wide variety of data. Its properties seem rather simple: it couples to single quarks and its coupling factorises.
0711.3522
Akaki Rusetsky
J. Gasser (Bern U.), V.E. Lyubovitskij (Tuebingen U.), A. Rusetsky (Bonn U., HISKP)
Hadronic atoms in QCD + QED
140 pages, 19 postscript figures, the replaced version contains an additional reference
Phys.Rept.456:167-251,2008
10.1016/j.physrep.2007.09.006
HISKP-TH-07-20
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We review the theory of hadronic atoms in QCD + QED, based on a non-relativistic effective Lagrangian framework. We first provide an introduction to the theory, and then describe several applications: meson-meson, meson-nucleon atoms and meson-deuteron compounds. Finally, we compare the quantum field theory framework...
[ { "created": "Thu, 22 Nov 2007 09:02:29 GMT", "version": "v1" }, { "created": "Wed, 11 Mar 2009 16:57:10 GMT", "version": "v2" } ]
2009-03-11
[ [ "Gasser", "J.", "", "Bern U." ], [ "Lyubovitskij", "V. E.", "", "Tuebingen U." ], [ "Rusetsky", "A.", "", "Bonn U., HISKP" ] ]
We review the theory of hadronic atoms in QCD + QED, based on a non-relativistic effective Lagrangian framework. We first provide an introduction to the theory, and then describe several applications: meson-meson, meson-nucleon atoms and meson-deuteron compounds. Finally, we compare the quantum field theory framework u...
hep-ph/0304064
Kotikov Anatoly
A. V. Kotikov and G. Parente
Small x behavior of parton distributions with flat initial conditions. A study of higher-twist effects
6 pages, 2 figures, latex. Talk presented at the XVI International Baldin Seminar on High Energy Physics Problems ``Relativistic Nuclear Physics and Quantum Chromodynamics'', Dubna, Russia, June 2002
null
null
null
hep-ph
null
We study the Q^2 evolution of parton distributions at small x values, obtained in the case of flat initial conditions. The contributions of twist-two and (renormalon-type) higher-twist operators of the Wilson operator product expansion are taken into account. The results are in good agreement with deep inelastic scat...
[ { "created": "Mon, 7 Apr 2003 07:56:33 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kotikov", "A. V.", "" ], [ "Parente", "G.", "" ] ]
We study the Q^2 evolution of parton distributions at small x values, obtained in the case of flat initial conditions. The contributions of twist-two and (renormalon-type) higher-twist operators of the Wilson operator product expansion are taken into account. The results are in good agreement with deep inelastic scatte...
2401.01821
Francisco Lobo
Ednaldo L. B. Junior, Jos\'e Tarciso S. S. Junior, Francisco S. N. Lobo, Manuel E. Rodrigues, Lu\'is F. Dias da Silva, Henrique A. Vieira
Observations on the massive particle surface method
15 pages, 1 figure; comments are welcome
null
null
null
gr-qc astro-ph.HE hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The geodesic method has played a crucial role in understanding the circular orbits generated by compact objects, culminating in the definition of the photon sphere, which was later generalized to a photon surface in arbitrary spacetimes. This new formulation extends the concept of the photon sphere in a broader sense...
[ { "created": "Wed, 3 Jan 2024 16:28:05 GMT", "version": "v1" } ]
2024-01-04
[ [ "Junior", "Ednaldo L. B.", "" ], [ "Junior", "José Tarciso S. S.", "" ], [ "Lobo", "Francisco S. N.", "" ], [ "Rodrigues", "Manuel E.", "" ], [ "da Silva", "Luís F. Dias", "" ], [ "Vieira", "Henrique A.", "" ] ]
The geodesic method has played a crucial role in understanding the circular orbits generated by compact objects, culminating in the definition of the photon sphere, which was later generalized to a photon surface in arbitrary spacetimes. This new formulation extends the concept of the photon sphere in a broader sense, ...
2405.08591
Shao-Feng Ge
Xuan-Ye Fu and Shao-Feng Ge and Zi-Yang Guo and Qi-Heng Wang
Degeneracy Enhancement of Neutron-Antineutron Oscillation in Neutron Star
6 pages, 3 figures
null
null
null
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore the fermion oscillation in a degenerate environment. The direct consequence is introducing a Pauli blocking factor $1 - f_i$, where $f_i$ is the phase space distribution function, for each intermediate mass eigenstate during propagation. It is then much easier for a state with larger existing fraction or d...
[ { "created": "Tue, 14 May 2024 13:31:46 GMT", "version": "v1" }, { "created": "Thu, 8 Aug 2024 09:03:39 GMT", "version": "v2" } ]
2024-08-09
[ [ "Fu", "Xuan-Ye", "" ], [ "Ge", "Shao-Feng", "" ], [ "Guo", "Zi-Yang", "" ], [ "Wang", "Qi-Heng", "" ] ]
We explore the fermion oscillation in a degenerate environment. The direct consequence is introducing a Pauli blocking factor $1 - f_i$, where $f_i$ is the phase space distribution function, for each intermediate mass eigenstate during propagation. It is then much easier for a state with larger existing fraction or den...
hep-ph/0311323
Aleksi Vuorinen
Y. Schroder, A. Vuorinen
High-precision evaluation of four-loop vacuum bubbles in three dimensions
8 pages
null
null
HIP-2003-55/TH, MIT-CTP 3431
hep-ph
null
In this letter we present a high-precision evaluation of the expansions in eps=(3-d)/2 of (up to) four-loop scalar vacuum master integrals, using the method of difference equations developed by Laporta. We cover the complete set of fully massive master integrals.
[ { "created": "Tue, 25 Nov 2003 15:40:26 GMT", "version": "v1" } ]
2016-09-06
[ [ "Schroder", "Y.", "" ], [ "Vuorinen", "A.", "" ] ]
In this letter we present a high-precision evaluation of the expansions in eps=(3-d)/2 of (up to) four-loop scalar vacuum master integrals, using the method of difference equations developed by Laporta. We cover the complete set of fully massive master integrals.
1207.2431
Thomas W. Baumgarte
Kenneth A. Dennison and Thomas W. Baumgarte
Analytical Tendex and Vortex Fields for Perturbative Black Hole Initial Data
18 pages, 8 figures, submitted to PRD
null
10.1103/PhysRevD.86.084051
null
gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Tendex and vortex fields, defined by the eigenvectors and eigenvalues of the electric and magnetic parts of the Weyl curvature tensor, form the basis of a recently developed approach to visualizing spacetime curvature. In particular, this method has been proposed as a tool for interpreting results from numerical bina...
[ { "created": "Tue, 10 Jul 2012 18:06:03 GMT", "version": "v1" } ]
2015-06-05
[ [ "Dennison", "Kenneth A.", "" ], [ "Baumgarte", "Thomas W.", "" ] ]
Tendex and vortex fields, defined by the eigenvectors and eigenvalues of the electric and magnetic parts of the Weyl curvature tensor, form the basis of a recently developed approach to visualizing spacetime curvature. In particular, this method has been proposed as a tool for interpreting results from numerical binary...
0803.1853
Emanuele Berti
Nicolas Yunes and Emanuele Berti
Accuracy of the Post-Newtonian Approximation: Optimal Asymptotic Expansion for Quasi-Circular, Extreme-Mass Ratio Inspirals
17 pages, 14 figures, 5 Tables, 1 Appendix. We added an Erratum to correct some mistakes in tables and figures. The main conclusions of the original paper are still valid
Phys.Rev.D77:124006,2008; Erratum-ibid.D83:109901,2011
10.1103/PhysRevD.77.124006 10.1103/PhysRevD.83.109901
IGC-08/3-1
gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the accuracy of the post-Newtonian (PN) approximation and its formal region of validity, by investigating its optimal asymptotic expansion for the quasi-circular, adiabatic inspiral of a point particle into a Schwarzschild black hole. By comparing the PN expansion of the energy flux to numerical calculations...
[ { "created": "Thu, 13 Mar 2008 18:15:43 GMT", "version": "v1" }, { "created": "Wed, 30 Mar 2011 20:11:03 GMT", "version": "v2" } ]
2011-05-12
[ [ "Yunes", "Nicolas", "" ], [ "Berti", "Emanuele", "" ] ]
We study the accuracy of the post-Newtonian (PN) approximation and its formal region of validity, by investigating its optimal asymptotic expansion for the quasi-circular, adiabatic inspiral of a point particle into a Schwarzschild black hole. By comparing the PN expansion of the energy flux to numerical calculations i...
1510.04468
Oleg Selyugin
O.V. Selyugin
Momentum transfer dependence of gpds
6 pages, 8 figs, Talk on the XVI workshop on high energy physics (Dubna-15), Dubna, Russia, September 8-12, 1915
null
10.1088/1742-6596/678/1/012024
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Based on the factorization representation of the General Parton Distributions (GPDs) the momentum transfer dependence was determined by the analysis of the different representations of parton distribution functions (PDFs) and all possible experimental data of the electromagnetic form factors of the proton and neutron...
[ { "created": "Thu, 15 Oct 2015 11:01:06 GMT", "version": "v1" } ]
2016-02-17
[ [ "Selyugin", "O. V.", "" ] ]
Based on the factorization representation of the General Parton Distributions (GPDs) the momentum transfer dependence was determined by the analysis of the different representations of parton distribution functions (PDFs) and all possible experimental data of the electromagnetic form factors of the proton and neutron. ...
1701.06668
Eavan Gleeson
Eavan Gleeson
Linear Instability of the Reissner-Nordstr\"om Cauchy Horizon
Submitted as MSc thesis, University of Cambridge, 2016
null
null
null
gr-qc math.AP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This work studies solutions of the scalar wave equation \[\Box_g\phi=0\] on a fixed subextremal Reissner-Nordstr\"{o}m spacetime with non-vanishing charge $q$ and mass $M$. In a recent paper, Luk and Oh established that generic smooth and compactly supported initial data on a Cauchy hypersurface lead to solutions whi...
[ { "created": "Mon, 23 Jan 2017 22:57:46 GMT", "version": "v1" } ]
2017-01-25
[ [ "Gleeson", "Eavan", "" ] ]
This work studies solutions of the scalar wave equation \[\Box_g\phi=0\] on a fixed subextremal Reissner-Nordstr\"{o}m spacetime with non-vanishing charge $q$ and mass $M$. In a recent paper, Luk and Oh established that generic smooth and compactly supported initial data on a Cauchy hypersurface lead to solutions which...
1310.1730
Thomas Gajdosik
Adomas Jelinskas
Predicting \tau-lepton polarization at the LHC
Master's thesis in Lithuanian language; 65 pages; uses feyarts.sty
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This is a master's thesis and it is written in Lithuanian language. The goal of this thesis is to predict the polarization of a \tau-particle produced at the LHC and coming from a real W boson. This is achieved by calculating the projection of the expectation value of the polarization vector of the \tau-particle. C...
[ { "created": "Mon, 7 Oct 2013 10:58:56 GMT", "version": "v1" } ]
2013-10-08
[ [ "Jelinskas", "Adomas", "" ] ]
This is a master's thesis and it is written in Lithuanian language. The goal of this thesis is to predict the polarization of a \tau-particle produced at the LHC and coming from a real W boson. This is achieved by calculating the projection of the expectation value of the polarization vector of the \tau-particle. Calcu...
hep-ph/0611271
Zhi-Gang Wang
Z. G. Wang (NCEPU, Baoding)
Structure of the axial-vector meson $D_{s1}(2460)$ and the strong coupling constant $g_{D_{s1} D^* K}$ with the light-cone QCD sum rules
17 pages, 7 figures, revised version. In the first version, I take the value $f_{D_{s1}}= (0.25\pm0.02)GeV$ in numerical calculation, in the revised version, I take a small value $f_{D_{s1}}=(0.225 \pm0.020)GeV$, the value of the strong coupling constant is also changed
J.Phys.G34:753-765,2007
10.1088/0954-3899/34/4/011
null
hep-ph
null
In this article, we take the point of view that the charmed axial-vector meson $D_{s1}(2460)$ is the conventional $c\bar{s}$ meson and calculate the strong coupling constant $g_{D_{s1} D^* K}$ in the framework of the light-cone QCD sum rules approach. The numerical values of strong coupling constants $g_{D_{s1} D^* K...
[ { "created": "Tue, 21 Nov 2006 15:17:07 GMT", "version": "v1" }, { "created": "Wed, 22 Nov 2006 03:13:47 GMT", "version": "v2" }, { "created": "Sun, 4 Feb 2007 01:57:45 GMT", "version": "v3" } ]
2008-11-26
[ [ "Wang", "Z. G.", "", "NCEPU, Baoding" ] ]
In this article, we take the point of view that the charmed axial-vector meson $D_{s1}(2460)$ is the conventional $c\bar{s}$ meson and calculate the strong coupling constant $g_{D_{s1} D^* K}$ in the framework of the light-cone QCD sum rules approach. The numerical values of strong coupling constants $g_{D_{s1} D^* K}$...
hep-ph/9908413
Sandy Donnachie
A. Donnachie, H.G. Dosch, M. Rueter
Gamma*Gamma* Reactions at High Energies
21 pages, 5 figures
Eur.Phys.J.C13:141-150,2000
10.1007/s100520000268
null
hep-ph
null
The total hadronic gamma*gamma* cross sections at high energy are calculated as a function of energy and photon virtuality in a model combining Regge exchange, the quark box diagram (a fixed pole in Regge language) and soft and hard pomeron exchanges evaluated in the context of dipole-dipole scattering. Good agreemen...
[ { "created": "Thu, 19 Aug 1999 13:45:40 GMT", "version": "v1" } ]
2015-06-25
[ [ "Donnachie", "A.", "" ], [ "Dosch", "H. G.", "" ], [ "Rueter", "M.", "" ] ]
The total hadronic gamma*gamma* cross sections at high energy are calculated as a function of energy and photon virtuality in a model combining Regge exchange, the quark box diagram (a fixed pole in Regge language) and soft and hard pomeron exchanges evaluated in the context of dipole-dipole scattering. Good agreement ...
2112.15387
Seth Asante
Seth K. Asante, Bianca Dittrich, Jos\'e Padua-Arg\"uelles
Complex actions and causality violations: Applications to Lorentzian quantum cosmology
34 pages, 11 figures; very minor changes
null
null
null
gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
For the construction of the Lorentzian path integral for gravity one faces two main questions: Firstly, what configurations to include, in particular whether to allow Lorentzian metrics that violate causality conditions. And secondly, how to evaluate a highly oscillatory path integral over unbounded domains. Relying ...
[ { "created": "Fri, 31 Dec 2021 11:05:22 GMT", "version": "v1" }, { "created": "Wed, 5 Jan 2022 08:29:12 GMT", "version": "v2" }, { "created": "Wed, 2 Mar 2022 18:40:15 GMT", "version": "v3" } ]
2022-03-03
[ [ "Asante", "Seth K.", "" ], [ "Dittrich", "Bianca", "" ], [ "Padua-Argüelles", "José", "" ] ]
For the construction of the Lorentzian path integral for gravity one faces two main questions: Firstly, what configurations to include, in particular whether to allow Lorentzian metrics that violate causality conditions. And secondly, how to evaluate a highly oscillatory path integral over unbounded domains. Relying on...
0809.1214
Ettore Minguzzi
E. Minguzzi
K-causality coincides with stable causality
11 pages, 2 figures
Commun.Math.Phys.290:239-248,2009
10.1007/s00220-009-0794-4
null
gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is proven that K-causality coincides with stable causality, and that in a K-causal spacetime the relation K^+ coincides with the Seifert's relation. As a consequence the causal relation "the spacetime is strongly causal and the closure of the causal relation is transitive" stays between stable causality and causal...
[ { "created": "Sun, 7 Sep 2008 10:03:58 GMT", "version": "v1" } ]
2011-06-24
[ [ "Minguzzi", "E.", "" ] ]
It is proven that K-causality coincides with stable causality, and that in a K-causal spacetime the relation K^+ coincides with the Seifert's relation. As a consequence the causal relation "the spacetime is strongly causal and the closure of the causal relation is transitive" stays between stable causality and causal c...