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hep-ph/0405226
Antal Jakovac
A. Jakovac, Zs. Szep
Renormalization and resummation in finite temperature field theories
10 pages, 4 figures, revtex4
Phys.Rev. D71 (2005) 105001
10.1103/PhysRevD.71.105001
null
hep-ph
null
Resummation, ie. reorganization of perturbative series, can result in an inconsistent perturbation theory, unless the counterterms are reorganized in an appropriate way. In this paper two methods are presented for resummation of counterterms: one is a direct method where the necessary counterterms are constructed ord...
[ { "created": "Mon, 24 May 2004 08:50:59 GMT", "version": "v1" } ]
2009-11-10
[ [ "Jakovac", "A.", "" ], [ "Szep", "Zs.", "" ] ]
Resummation, ie. reorganization of perturbative series, can result in an inconsistent perturbation theory, unless the counterterms are reorganized in an appropriate way. In this paper two methods are presented for resummation of counterterms: one is a direct method where the necessary counterterms are constructed order...
hep-ph/9710261
Andreas Schaefer
I.V. Musatov (Old Dominion University, Norfolk, USA), O.V. Teryaev, (Bogoliubov Laboratory of Theoretical Physics, Dubna, Russia) and A. Sch\"afer (Universit\"at Regensburg, Germany)
The elastic contribution to the Burkhardt -- Cottingham and Generalized Gerasimov--Drell-Hearn Sum Rules
8 pages latex and one figure
Phys.Rev. D57 (1998) 7041-7044
10.1103/PhysRevD.57.7041
null
hep-ph
null
The elastic contribution to the first moment of $g_2(x,Q^2)$ is analysed using a Drell-Yan-West type of relation and is shown to be negative. For a qualitative estimate the one-loop contributions to the polarized DIS sum rules in QED are studied. The behaviour of the generalized Gerasimov-Drell-Hearn sum rule is sens...
[ { "created": "Tue, 7 Oct 1997 08:30:37 GMT", "version": "v1" } ]
2009-10-30
[ [ "Musatov", "I. V.", "", "Old Dominion University, Norfolk, USA" ], [ "Teryaev", "O. V.", "", "Universität Regensburg, Germany" ], [ "Schäfer", "A.", "", "Universität Regensburg, Germany" ] ]
The elastic contribution to the first moment of $g_2(x,Q^2)$ is analysed using a Drell-Yan-West type of relation and is shown to be negative. For a qualitative estimate the one-loop contributions to the polarized DIS sum rules in QED are studied. The behaviour of the generalized Gerasimov-Drell-Hearn sum rule is sensit...
1111.0197
Gernot Eichmann
Gernot Eichmann, Christian S. Fischer
Unified description of hadron-photon and hadron-meson scattering in the Dyson-Schwinger approach
15 pages, 6 figures
null
10.1103/PhysRevD.85.034015
null
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We derive the expression for the nonperturbative coupling of a hadron to two external currents from its underlying structure in QCD. Microscopically, the action of each current is resolved to a coupling with dressed quarks. The Lorentz structure of the currents is arbitrary and thereby allows to describe the hadron's...
[ { "created": "Tue, 1 Nov 2011 13:21:13 GMT", "version": "v1" } ]
2013-05-30
[ [ "Eichmann", "Gernot", "" ], [ "Fischer", "Christian S.", "" ] ]
We derive the expression for the nonperturbative coupling of a hadron to two external currents from its underlying structure in QCD. Microscopically, the action of each current is resolved to a coupling with dressed quarks. The Lorentz structure of the currents is arbitrary and thereby allows to describe the hadron's i...
1105.3333
Jose Santiago
Roberto Barcelo, Adrian Carmona, Manuel Masip, Jose Santiago
Gluon excitations in t tbar production at hadron colliders
16 pages, 6 figures
Phys.Rev.D84:014024,2011
10.1103/PhysRevD.84.014024
UG-FT-286/11,CAFPE-156/11
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We argue that a relatively light massive gluon with mass <= 1 TeV, small purely axial couplings to light quarks and sizable vector and axial couplings to the top quark can reproduce the large forward-backward asymmetry observed at the Tevatron without conflicting with the t tbar and the dijet invariant mass distribut...
[ { "created": "Tue, 17 May 2011 10:30:49 GMT", "version": "v1" } ]
2011-08-09
[ [ "Barcelo", "Roberto", "" ], [ "Carmona", "Adrian", "" ], [ "Masip", "Manuel", "" ], [ "Santiago", "Jose", "" ] ]
We argue that a relatively light massive gluon with mass <= 1 TeV, small purely axial couplings to light quarks and sizable vector and axial couplings to the top quark can reproduce the large forward-backward asymmetry observed at the Tevatron without conflicting with the t tbar and the dijet invariant mass distributio...
2005.06381
Thomas Peitzmann
Thomas Peitzmann
Constraints of the Low-x Structure of Protons and Nuclei
6 pages, to be published in proceedings of ISMD 2019, Santa Fe
null
10.1051/epjconf/202023503001
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
I review recent developments in the study of the low-x partonic content of protons and nuclei, with a focus on the latter, as one expects possible deviations from linear QCD evolution to be most pronounced in that case. I give examples of recent theoretical descriptions of HERA measurements with a focus on the role o...
[ { "created": "Wed, 13 May 2020 15:46:18 GMT", "version": "v1" } ]
2020-07-15
[ [ "Peitzmann", "Thomas", "" ] ]
I review recent developments in the study of the low-x partonic content of protons and nuclei, with a focus on the latter, as one expects possible deviations from linear QCD evolution to be most pronounced in that case. I give examples of recent theoretical descriptions of HERA measurements with a focus on the role of ...
hep-ph/9902225
Thomas Gehrmann
T. Gehrmann (Karlsruhe), T. Sloan (Lancaster)
Spin physics in deep inelastic scattering: Summary
6 (Latex) pages, including 1 embedded figure, uses IOP style files; Plenary talk presented at the 3rd UK Phenomenology Workshop on HERA Physics, Durham, September 1998, to be published in the Proceedings; The complete paper, including figures, is also available via anonymous ftp at ftp://ttpux2.physik.uni-karls...
J.Phys.G25:1527-1532,1999
10.1088/0954-3899/25/7/340
TTP99-04
hep-ph
null
The problem of our understanding of the spin structure of the nucleon has been with us since the publication of the EMC measurements of the polarised structure function of the proton in 1987. In this talk a review of the results presented in Working Group 6 at this workshop is given.
[ { "created": "Tue, 2 Feb 1999 14:03:15 GMT", "version": "v1" } ]
2008-11-26
[ [ "Gehrmann", "T.", "", "Karlsruhe" ], [ "Sloan", "T.", "", "Lancaster" ] ]
The problem of our understanding of the spin structure of the nucleon has been with us since the publication of the EMC measurements of the polarised structure function of the proton in 1987. In this talk a review of the results presented in Working Group 6 at this workshop is given.
hep-ph/9702398
Carlos Alberto Salgado Lopez
J. Dias de Deus, C. Pajares and C. A. Salgado
Moment Analysis, Multiplicity Distributions and Correlations in High Energy Processes: Nucleus-Nucleus Collisions
11 pages, 2 Postscript figures
Phys.Lett. B407 (1997) 335-340
10.1016/S0370-2693(97)00677-1
US-FT/6-97
hep-ph
null
Cumulant oscillations, or $H_q$ moment oscillations, appear if the KNO multiparticle distribution decreases at large z, $z\equiv n/ <n>$, faster than the exponential, $exp(-D z^\mu)$, with $\mu > 1$. In nucleus-nucleus interactions this behaviour is related to the limitation in the average number of elementary centra...
[ { "created": "Sat, 22 Feb 1997 13:48:16 GMT", "version": "v1" } ]
2009-10-30
[ [ "de Deus", "J. Dias", "" ], [ "Pajares", "C.", "" ], [ "Salgado", "C. A.", "" ] ]
Cumulant oscillations, or $H_q$ moment oscillations, appear if the KNO multiparticle distribution decreases at large z, $z\equiv n/ <n>$, faster than the exponential, $exp(-D z^\mu)$, with $\mu > 1$. In nucleus-nucleus interactions this behaviour is related to the limitation in the average number of elementary central ...
0706.1284
Yi Liao
Yi Liao (Nankai U.), Ji-Yuan Liu (Nankai U.)
Long-range Electron Spin-spin Interactions from Unparticle Exchange
v1: 10 pages, no figure, 1 table; v2: Proofread version for PRL. Main changes: (1) Shortened considerably to meet the length limit by cutting some calculational details. (2) Introduction paragraphs hopefully improved. (3) Minor rewording in the text and title. There are no changes to numerical results and concl...
Phys.Rev.Lett.99:191804,2007
10.1103/PhysRevLett.99.191804
null
hep-ph hep-ex
null
Unparticles as suggested by Georgi are identities that are not constrained by dispersion relations but are governed by their scaling dimension, d. Their coupling to particles can result in macroscopic interactions between matter, that are generally an inverse nonintegral power of distance. This is totally different f...
[ { "created": "Sat, 9 Jun 2007 03:32:06 GMT", "version": "v1" }, { "created": "Sat, 3 Nov 2007 07:53:32 GMT", "version": "v2" } ]
2008-11-26
[ [ "Liao", "Yi", "", "Nankai U." ], [ "Liu", "Ji-Yuan", "", "Nankai U." ] ]
Unparticles as suggested by Georgi are identities that are not constrained by dispersion relations but are governed by their scaling dimension, d. Their coupling to particles can result in macroscopic interactions between matter, that are generally an inverse nonintegral power of distance. This is totally different fro...
1801.05268
Shunya Takahashi
Takuya Morozumi, Yusuke Shimizu, Shunya Takahashi, and Hiroyuki Umeeda
Effective theory analysis for vector-like quark model
30 pages, 14 figures. In version 2, a typo is corrected and some references are added. We added a comment on the RG effect in the section of summary and discussion
Prog Theor Exp Phys (2018)
10.1093/ptep/pty042
HUPD1714
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study a model with a down-type SU(2) singlet vector-like quark (VLQ) as a minimal extension of the standard model (SM). In this model, flavor changing neutral currents (FCNCs) arise at tree level and the unitarity of the $3\times 3$ Cabibbo-Kobayashi-Maskawa (CKM) matrix does not hold. In this paper, we constrain ...
[ { "created": "Tue, 16 Jan 2018 14:43:17 GMT", "version": "v1" }, { "created": "Mon, 12 Mar 2018 05:49:47 GMT", "version": "v2" } ]
2019-12-06
[ [ "Morozumi", "Takuya", "" ], [ "Shimizu", "Yusuke", "" ], [ "Takahashi", "Shunya", "" ], [ "Umeeda", "Hiroyuki", "" ] ]
We study a model with a down-type SU(2) singlet vector-like quark (VLQ) as a minimal extension of the standard model (SM). In this model, flavor changing neutral currents (FCNCs) arise at tree level and the unitarity of the $3\times 3$ Cabibbo-Kobayashi-Maskawa (CKM) matrix does not hold. In this paper, we constrain th...
2301.05972
Nikolaos Kidonakis
Nikolaos Kidonakis
Four-loop massive cusp anomalous dimension in QCD: a calculation from asymptotics
21 pages, 7 figures; v2 has additional study of color structures
Phys. Rev. D 107, 054006 (2023)
10.1103/PhysRevD.107.054006
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
I present a general method for determining the massive cusp anomalous dimension in QCD to a very high degree of accuracy using its asymptotic behavior at small and large quark velocities. I show that the method works exceedingly well at two and three loops where exact results are already known. I then present a calcu...
[ { "created": "Sat, 14 Jan 2023 20:46:03 GMT", "version": "v1" }, { "created": "Thu, 2 Feb 2023 03:11:27 GMT", "version": "v2" } ]
2023-03-15
[ [ "Kidonakis", "Nikolaos", "" ] ]
I present a general method for determining the massive cusp anomalous dimension in QCD to a very high degree of accuracy using its asymptotic behavior at small and large quark velocities. I show that the method works exceedingly well at two and three loops where exact results are already known. I then present a calcula...
hep-ph/0312364
Grzegorz Wilk
Oleg.V.Utyuzh and Grzegorz Wilk
BEC for photons and neutral pions
Contribution to Second Warsaw Meeting on Particle Correlations and Resonances in Heavy Ion Collisions, Warsaw, 15-18 October, 2003, Poland
Nukleonika 49 (2004) S15
null
null
hep-ph
null
The role of BEC for photons and neutral pions is briefly discussed and illustrated by means of new method of numerical modelling of BEC proposed by us recently.
[ { "created": "Mon, 29 Dec 2003 12:35:51 GMT", "version": "v1" } ]
2007-05-23
[ [ "Utyuzh", "Oleg. V.", "" ], [ "Wilk", "Grzegorz", "" ] ]
The role of BEC for photons and neutral pions is briefly discussed and illustrated by means of new method of numerical modelling of BEC proposed by us recently.
hep-ph/0605018
Naoki Yamamoto
Tetsuo Hatsuda, Motoi Tachibana, Naoki Yamamoto and Gordon Baym
New Critical Point Induced by the Axial Anomaly in Dense QCD
4 pages, 4 figures included, version to appear in Phys. Rev. Lett
Phys.Rev.Lett. 97 (2006) 122001
10.1103/PhysRevLett.97.122001
TKYNT-06-8, SAGA-HE-228
hep-ph cond-mat.other nucl-th
null
We study the interplay between chiral and diquark condensates within the framework of the Ginzburg-Landau free energy, and classify possible phase structures of two and three-flavor massless QCD. The QCD axial anomaly acts as an external field applied to the chiral condensate in a color superconductor and leads to a ...
[ { "created": "Mon, 1 May 2006 03:16:41 GMT", "version": "v1" }, { "created": "Mon, 2 Oct 2006 08:42:41 GMT", "version": "v2" } ]
2007-05-23
[ [ "Hatsuda", "Tetsuo", "" ], [ "Tachibana", "Motoi", "" ], [ "Yamamoto", "Naoki", "" ], [ "Baym", "Gordon", "" ] ]
We study the interplay between chiral and diquark condensates within the framework of the Ginzburg-Landau free energy, and classify possible phase structures of two and three-flavor massless QCD. The QCD axial anomaly acts as an external field applied to the chiral condensate in a color superconductor and leads to a cr...
hep-ph/0210165
Maxim V. Polyakov
M.V. Polyakov
Generalized parton distributions and strong forces inside nucleons and nuclei
null
Phys.Lett. B555 (2003) 57-62
10.1016/S0370-2693(03)00036-4
RUB-TP2-14/02
hep-ph hep-ex nucl-th
null
We argue that generalized parton distributions (GPDs), accessible in hard exclusive processes, carry information about the spatial distribution of forces experienced by quarks and gluons inside hadrons. This way the measurements of hard exclusive processes open a possibility for direct "measurements" of strong forces...
[ { "created": "Thu, 10 Oct 2002 18:40:50 GMT", "version": "v1" } ]
2009-11-07
[ [ "Polyakov", "M. V.", "" ] ]
We argue that generalized parton distributions (GPDs), accessible in hard exclusive processes, carry information about the spatial distribution of forces experienced by quarks and gluons inside hadrons. This way the measurements of hard exclusive processes open a possibility for direct "measurements" of strong forces i...
hep-ph/0501083
Stephen Godfrey
Stephen Godfrey (Carleton U)
Production of the h_c and h_b and Implications for Quarkonium Spectroscopy
Talk presented at the 1st Meeting of the APS Topical Group on Hadronic Physics (Fermilab, Oct 24-26, 2004), 4 pages, 1 figure, uses jpconf. References added
J.Phys.Conf.Ser. 9 (2005) 123-126
10.1088/1742-6596/9/1/023
null
hep-ph
null
The recent observation of the h_c is an important test of QCD calculations and provides constraints on models of quarkonium spectroscopy. In this contribution I discuss some of these implications and describe methods to search for the h_c and h_b via radiative transitions and other means.
[ { "created": "Tue, 11 Jan 2005 04:10:54 GMT", "version": "v1" }, { "created": "Mon, 17 Jan 2005 15:29:31 GMT", "version": "v2" } ]
2009-11-11
[ [ "Godfrey", "Stephen", "", "Carleton U" ] ]
The recent observation of the h_c is an important test of QCD calculations and provides constraints on models of quarkonium spectroscopy. In this contribution I discuss some of these implications and describe methods to search for the h_c and h_b via radiative transitions and other means.
hep-ph/9609253
V. A. Kuzmin
Vadim A. Kuzmin
Might Fast B-Violating Transitions Be Found Soon?
LaTeX file
null
null
Preprint INR-0931/Aug 1996
hep-ph
null
We claim that there might exist a new interaction leading to very fast baryon-number violating processes quite observable in the laboratory conditions, provided all three generations are simultaneously involved.
[ { "created": "Thu, 5 Sep 1996 07:26:00 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kuzmin", "Vadim A.", "" ] ]
We claim that there might exist a new interaction leading to very fast baryon-number violating processes quite observable in the laboratory conditions, provided all three generations are simultaneously involved.
hep-ph/0611107
Satoshi Mishima
Wei-Shu Hou, Hsiang-nan Li, Satoshi Mishima, Makiko Nagashima
Fourth Generation CP Violation Effect on B -> K pi, phi K and rho K in NLO PQCD
4 pages, 6 figures; version to appear in Phys. Rev. Lett
Phys.Rev.Lett.98:131801,2007
10.1103/PhysRevLett.98.131801
null
hep-ph
null
We study the effect from a sequential fourth generation quark on penguin-dominated two-body nonleptonic B meson decays in the next-to-leading order perturbative QCD formalism. With an enhancement of the color-suppressed tree amplitude and possibility of a new CP phase in the electroweak penguin, we can account better...
[ { "created": "Wed, 8 Nov 2006 19:21:29 GMT", "version": "v1" }, { "created": "Thu, 29 Mar 2007 19:00:59 GMT", "version": "v2" } ]
2008-11-26
[ [ "Hou", "Wei-Shu", "" ], [ "Li", "Hsiang-nan", "" ], [ "Mishima", "Satoshi", "" ], [ "Nagashima", "Makiko", "" ] ]
We study the effect from a sequential fourth generation quark on penguin-dominated two-body nonleptonic B meson decays in the next-to-leading order perturbative QCD formalism. With an enhancement of the color-suppressed tree amplitude and possibility of a new CP phase in the electroweak penguin, we can account better f...
1202.5088
Qiang Zhao
Qian Wang, Gang Li, and Qiang Zhao
Probing scalar meson structures in $\chi_{c1}$ decays into pseudoscalar and scalar
9 pages and 6 eps figures; Enhanced discussion on the dominance of hair-pin diagram is added. Revised version to appear in IJMPA
null
10.1142/S0217751X12501357
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We evaluate the decay branching ratios of $\chi_{c1}\to PS$, in a quark model parametrization scheme, where $P$ and $S$ stand for pseudoscalar and scalar meson, respectively. An interesting feature of this decay process is that the $c\bar{c}$ annihilate via the pQCD hair-pin diagram is supposed to be dominant. Hence,...
[ { "created": "Thu, 23 Feb 2012 04:57:55 GMT", "version": "v1" }, { "created": "Tue, 31 Jul 2012 04:23:34 GMT", "version": "v2" } ]
2015-06-04
[ [ "Wang", "Qian", "" ], [ "Li", "Gang", "" ], [ "Zhao", "Qiang", "" ] ]
We evaluate the decay branching ratios of $\chi_{c1}\to PS$, in a quark model parametrization scheme, where $P$ and $S$ stand for pseudoscalar and scalar meson, respectively. An interesting feature of this decay process is that the $c\bar{c}$ annihilate via the pQCD hair-pin diagram is supposed to be dominant. Hence, t...
1912.08204
Timon Emken
Riccardo Catena, Timon Emken, Nicola A. Spaldin, Walter Tarantino
Atomic responses to general dark matter-electron interactions
30 pages, 10 figures. Code available at https://github.com/temken/DarkARC and https://doi.org/10.5281/zenodo.3581334 . v2: matches published version
Phys. Rev. Research 2, 033195 (2020)
10.1103/PhysRevResearch.2.033195
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the leading paradigm of modern cosmology, about 80% of our Universe's matter content is in the form of hypothetical, as yet undetected particles. These do not emit or absorb radiation at any observable wavelengths, and therefore constitute the so-called Dark Matter (DM) component of the Universe. Detecting the par...
[ { "created": "Tue, 17 Dec 2019 19:00:00 GMT", "version": "v1" }, { "created": "Wed, 19 Aug 2020 09:06:25 GMT", "version": "v2" } ]
2020-08-20
[ [ "Catena", "Riccardo", "" ], [ "Emken", "Timon", "" ], [ "Spaldin", "Nicola A.", "" ], [ "Tarantino", "Walter", "" ] ]
In the leading paradigm of modern cosmology, about 80% of our Universe's matter content is in the form of hypothetical, as yet undetected particles. These do not emit or absorb radiation at any observable wavelengths, and therefore constitute the so-called Dark Matter (DM) component of the Universe. Detecting the parti...
1404.0113
Anson Hook
Anson Hook
Baryogenesis from Hawking Radiation
12 pages, 3 figures. Journal version
Phys. Rev. D 90, 083535 (2014)
10.1103/PhysRevD.90.083535
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show that in the presence of a chemical potential, black hole evaporation generates baryon number. If the inflaton or Ricci scalar is derivatively coupled to the B-L current, the expansion of the universe acts as a chemical potential and splits the energy levels of particles and their anti-particles. The asymmetri...
[ { "created": "Tue, 1 Apr 2014 02:54:42 GMT", "version": "v1" }, { "created": "Mon, 12 May 2014 20:13:06 GMT", "version": "v2" }, { "created": "Mon, 5 Jan 2015 19:01:37 GMT", "version": "v3" } ]
2015-01-06
[ [ "Hook", "Anson", "" ] ]
We show that in the presence of a chemical potential, black hole evaporation generates baryon number. If the inflaton or Ricci scalar is derivatively coupled to the B-L current, the expansion of the universe acts as a chemical potential and splits the energy levels of particles and their anti-particles. The asymmetric ...
hep-ph/9806496
Falcone
D. Falcone and F. Tramontano
Relation between quark masses and weak mixings
8 pages LaTeX, no figures. Some misprints corrected and reference style changed
Phys.Rev.D59:017302,1999
10.1103/PhysRevD.59.017302
DSF-T-98/21
hep-ph
null
Simple transformation formulas between fermion matrices and observables, and numerical values of quark matrices, are obtained on a particular weak basis with one quark matrix diagonal and the other with vanishing elements 1-1, 1-3 and 3-1, and with only the element 2-2 complex. When we choose $M_u$ diagonal, then $M_...
[ { "created": "Fri, 26 Jun 1998 11:32:33 GMT", "version": "v1" }, { "created": "Thu, 2 Jul 1998 08:22:02 GMT", "version": "v2" } ]
2011-02-01
[ [ "Falcone", "D.", "" ], [ "Tramontano", "F.", "" ] ]
Simple transformation formulas between fermion matrices and observables, and numerical values of quark matrices, are obtained on a particular weak basis with one quark matrix diagonal and the other with vanishing elements 1-1, 1-3 and 3-1, and with only the element 2-2 complex. When we choose $M_u$ diagonal, then $M_d$...
hep-ph/0211070
G. Lugones
G. Lugones and J. E. Horvath
Color-flavor locked strange matter
5 pages, 2 figures
Phys.Rev. D66 (2002) 074017
10.1103/PhysRevD.66.074017
null
hep-ph
null
We analyze how the CFL states in dense matter work in the direction of enhancing the parameter space for absolutely stable phases (strange matter). We find that the "CFL strange matter" phase can be the true ground state of hadronic matter for a much wider range of the parameters of the model (the gap of the QCD Coop...
[ { "created": "Tue, 5 Nov 2002 22:48:40 GMT", "version": "v1" } ]
2009-11-07
[ [ "Lugones", "G.", "" ], [ "Horvath", "J. E.", "" ] ]
We analyze how the CFL states in dense matter work in the direction of enhancing the parameter space for absolutely stable phases (strange matter). We find that the "CFL strange matter" phase can be the true ground state of hadronic matter for a much wider range of the parameters of the model (the gap of the QCD Cooper...
1202.2361
Jonathan Walsh
Randall Kelley, Jonathan R. Walsh, Saba Zuberi
Abelian Non-Global Logarithms from Soft Gluon Clustering
22 pages + appendices, 8 figures
null
10.1007/JHEP09(2012)117
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Most recombination-style jet algorithms cluster soft gluons in a complex way. This leads to correlations in the soft gluon phase space and introduces logarithmic corrections to jet cross sections. The leading Abelian clustering logarithms occur at least at next-to leading logarithm (NLL) in the exponent of the distri...
[ { "created": "Fri, 10 Feb 2012 21:00:04 GMT", "version": "v1" } ]
2015-06-04
[ [ "Kelley", "Randall", "" ], [ "Walsh", "Jonathan R.", "" ], [ "Zuberi", "Saba", "" ] ]
Most recombination-style jet algorithms cluster soft gluons in a complex way. This leads to correlations in the soft gluon phase space and introduces logarithmic corrections to jet cross sections. The leading Abelian clustering logarithms occur at least at next-to leading logarithm (NLL) in the exponent of the distribu...
1106.1423
Zvi Bern
Z. Bern, G. Diana, L. J. Dixon, F. Febres Cordero, S. Hoeche, H. Ita, D. A. Kosower, D. Maitre and K. J. Ozeren
Driving Missing Data at Next-to-Leading Order
27 pages, 9 figures, 3 tables, RevTex, v2 minor corrections and added references
Phys.Rev.D84:114002,2011
10.1103/PhysRevD.84.114002
SLAC--PUB--14472, UCLA/11/TEP/106, CERN--PH--TH/2011-125, IPhT--T11/146, IPPP/11/29, NSF--KITP--11--093, SB/F/387-11
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The prediction of backgrounds to new physics signals in topologies with large missing transverse energy and jets is important to new physics searches at the LHC. Following a CMS study, we investigate theoretical issues in using measurements of gamma + 2-jet production to predict the irreducible background to searches...
[ { "created": "Tue, 7 Jun 2011 19:46:50 GMT", "version": "v1" }, { "created": "Wed, 13 Jul 2011 06:40:20 GMT", "version": "v2" } ]
2015-03-19
[ [ "Bern", "Z.", "" ], [ "Diana", "G.", "" ], [ "Dixon", "L. J.", "" ], [ "Cordero", "F. Febres", "" ], [ "Hoeche", "S.", "" ], [ "Ita", "H.", "" ], [ "Kosower", "D. A.", "" ], [ "Maitre", "D.", ...
The prediction of backgrounds to new physics signals in topologies with large missing transverse energy and jets is important to new physics searches at the LHC. Following a CMS study, we investigate theoretical issues in using measurements of gamma + 2-jet production to predict the irreducible background to searches f...
hep-ph/9706473
Amir Fariborz
T. G. Steele, J. C. Breckenridge, M. Benmerrouche, V. Elias and A. H. Fariborz
QCD Laplace Sum Rules and the $\Pi (1300)$ Resonance
3 pages, latex, no figures, uses sprocl.sty, to appear in the proceedings of the DPF 1996 meeting, Minneapolis
null
null
null
hep-ph
null
A global fit to the shape of the first QCD Laplace sum rule exhibiting sensitivity to pion-resonance [$\Pi (1300)$] parameters is performed, leading to predictions for the pion-resonance mass and decay constant. This fit leads to predictions of $M_{\pi} = 1.15 \pm 0.15 GeV$ for the pion-resonance mass, and $F_\pi^2=(...
[ { "created": "Mon, 23 Jun 1997 21:56:55 GMT", "version": "v1" } ]
2007-05-23
[ [ "Steele", "T. G.", "" ], [ "Breckenridge", "J. C.", "" ], [ "Benmerrouche", "M.", "" ], [ "Elias", "V.", "" ], [ "Fariborz", "A. H.", "" ] ]
A global fit to the shape of the first QCD Laplace sum rule exhibiting sensitivity to pion-resonance [$\Pi (1300)$] parameters is performed, leading to predictions for the pion-resonance mass and decay constant. This fit leads to predictions of $M_{\pi} = 1.15 \pm 0.15 GeV$ for the pion-resonance mass, and $F_\pi^2=(4....
1503.08849
Theodore Brennan
T. Daniel Brennan
Two Loop Unification of Non-SUSY SO(10) GUT with TeV Scalars
null
Phys. Rev. D 95, 065008 (2017)
10.1103/PhysRevD.95.065008
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we examine gauge coupling unification of the the non-SUSY SO(10) grand unified theory proposed by Babu and Mohapatra at the two loop level. This theory breaks down to the standard model in a single step and has the distinguishing feature of TeV non-standard model scalars. This leads to a plethora of int...
[ { "created": "Mon, 30 Mar 2015 20:44:42 GMT", "version": "v1" }, { "created": "Wed, 12 Oct 2016 22:38:34 GMT", "version": "v2" }, { "created": "Wed, 22 Feb 2017 15:32:32 GMT", "version": "v3" } ]
2017-03-15
[ [ "Brennan", "T. Daniel", "" ] ]
In this paper we examine gauge coupling unification of the the non-SUSY SO(10) grand unified theory proposed by Babu and Mohapatra at the two loop level. This theory breaks down to the standard model in a single step and has the distinguishing feature of TeV non-standard model scalars. This leads to a plethora of inter...
1706.02017
Sushant Raut
Debasish Borah, Monojit Ghosh, Shivani Gupta, Sushant K. Raut
Texture zeros of low-energy Majorana neutrino mass matrix in 3+1 scheme
12 pages, 3 figures. Version published in PRD
Phys. Rev. D 96, 055017 (2017)
10.1103/PhysRevD.96.055017
ADP-17 - 24 / T1030, CTPU-17-19
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work we revisit the zero textures in low energy Majorana neutrino mass matrix when the active neutrino sector is extended by a light sterile neutrino in the eV scale i.e., the 3+1 scheme. In 3+1 scenario, the low energy neutrino mass matrix ($m_\nu$) has ten independent elements. Thus in principle one can hav...
[ { "created": "Wed, 7 Jun 2017 01:33:41 GMT", "version": "v1" }, { "created": "Tue, 26 Sep 2017 07:42:03 GMT", "version": "v2" } ]
2017-09-27
[ [ "Borah", "Debasish", "" ], [ "Ghosh", "Monojit", "" ], [ "Gupta", "Shivani", "" ], [ "Raut", "Sushant K.", "" ] ]
In this work we revisit the zero textures in low energy Majorana neutrino mass matrix when the active neutrino sector is extended by a light sterile neutrino in the eV scale i.e., the 3+1 scheme. In 3+1 scenario, the low energy neutrino mass matrix ($m_\nu$) has ten independent elements. Thus in principle one can have ...
1112.4515
S. V. Troitsky
Sergey Troitsky
Unsolved problems in particle physics
49 pages, 20 figures. A review lecture for physics students and general physicists, to be published in Physics Uspekhi in January 2012
Physics Uspekhi 55 (2012) 72-95 (Uspekhi Fiz. Nauk 182 (2012) 77-103)
10.3367/UFNe.0182.201201d.0077
INR-1306/2011
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
I consider selected (most important according to my own choice) unsolved problems in particle theory, both those related to extensions of the Standard Model (neutrino oscillations, which probably do not fit the usual three-generation scheme; indications in favour of new physics from astrophysical observations; electr...
[ { "created": "Mon, 19 Dec 2011 22:18:35 GMT", "version": "v1" } ]
2015-06-03
[ [ "Troitsky", "Sergey", "" ] ]
I consider selected (most important according to my own choice) unsolved problems in particle theory, both those related to extensions of the Standard Model (neutrino oscillations, which probably do not fit the usual three-generation scheme; indications in favour of new physics from astrophysical observations; electrow...
hep-ph/0012003
Chao-Qiang Geng
Chuan-Hung Chen and C.Q. Geng
Study of $\Lambda_b\to\Lambda\nu\bar{\nu}$ with Polarized Baryons
19 pages, 8 Figures, LaTex file, to be published in PRD
Phys.Rev. D63 (2001) 054005
10.1103/PhysRevD.63.054005
null
hep-ph
null
We investigate the decay of $\Lambda_b\to\Lambda\nu\bar{\nu}$ with the polarized baryons of $\Lambda_b$ and $\Lambda$. With the most general hadronic form factors, we first study the decay branching ratio and then derive the longitudinal, normal and transverse polarizations of $\Lambda$ in terms of the spin unit vect...
[ { "created": "Fri, 1 Dec 2000 07:42:24 GMT", "version": "v1" } ]
2009-10-31
[ [ "Chen", "Chuan-Hung", "" ], [ "Geng", "C. Q.", "" ] ]
We investigate the decay of $\Lambda_b\to\Lambda\nu\bar{\nu}$ with the polarized baryons of $\Lambda_b$ and $\Lambda$. With the most general hadronic form factors, we first study the decay branching ratio and then derive the longitudinal, normal and transverse polarizations of $\Lambda$ in terms of the spin unit vector...
1204.6642
Marek Karliner
John Ellis and Marek Karliner
Indications on the Mass of the Lightest Electroweak Baryon
References added
null
10.1016/j.physletb.2012.05.056
KCL-PH-TH/2012-18; LCTS/2012-10; CERN-PH-TH/2012-103; TAUP-2949/12
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In general, an effective low-energy Lagrangian model of composite electroweak symmetry breaking contains soliton solutions that may be identified with technibaryons. We recall how the masses of such states may be related to the coefficients of fourth-order terms in the effective Lagrangian, and review the qualitative...
[ { "created": "Mon, 30 Apr 2012 14:10:59 GMT", "version": "v1" }, { "created": "Tue, 15 May 2012 18:10:36 GMT", "version": "v2" } ]
2015-06-04
[ [ "Ellis", "John", "" ], [ "Karliner", "Marek", "" ] ]
In general, an effective low-energy Lagrangian model of composite electroweak symmetry breaking contains soliton solutions that may be identified with technibaryons. We recall how the masses of such states may be related to the coefficients of fourth-order terms in the effective Lagrangian, and review the qualitative s...
hep-ph/0006123
null
H. Athar, G. Parente, E. Zas
Prospects for observations of high-energy cosmic tau neutrinos
10 pages, Revtex, 3 figures included with epsf
Phys.Rev.D62:093010,2000
10.1103/PhysRevD.62.093010
TMUP-HEL-0012
hep-ph astro-ph hep-ex
null
We study prospects for the observations of high-energy cosmic tau neutrinos (E \geq 10^6 GeV) originating from proton acceleration in the cores of active galactic nuclei. We consider the possibility that vacuum flavor neutrino oscillations induce a tau to muon neutrino flux ratio greatly exceeding the rather small va...
[ { "created": "Tue, 13 Jun 2000 05:28:22 GMT", "version": "v1" } ]
2010-12-03
[ [ "Athar", "H.", "" ], [ "Parente", "G.", "" ], [ "Zas", "E.", "" ] ]
We study prospects for the observations of high-energy cosmic tau neutrinos (E \geq 10^6 GeV) originating from proton acceleration in the cores of active galactic nuclei. We consider the possibility that vacuum flavor neutrino oscillations induce a tau to muon neutrino flux ratio greatly exceeding the rather small valu...
0710.2234
K. Sridhar
M. Guchait, F. Mahmoudi and K. Sridhar
Associated production of a Kaluza-Klein excitation of a gluon with a t t(bar) pair at the LHC
11 pages, 3 figures
Phys.Lett.B666:347-351,2008
10.1016/j.physletb.2008.07.085
TIFR/TH/07-24
hep-ph
null
In Randall-Sundrum models, the Kaluza-Klein (KK) excitations of the gluon, g_{KK} have enhanced couplings to the right-handed quarks. In the absence of a gg g_{KK} coupling in these models, the single production of a g_{KK} from an initial gg state is not possible. The search for other production mechanisms at the LH...
[ { "created": "Thu, 11 Oct 2007 12:40:11 GMT", "version": "v1" } ]
2008-11-26
[ [ "Guchait", "M.", "" ], [ "Mahmoudi", "F.", "" ], [ "Sridhar", "K.", "" ] ]
In Randall-Sundrum models, the Kaluza-Klein (KK) excitations of the gluon, g_{KK} have enhanced couplings to the right-handed quarks. In the absence of a gg g_{KK} coupling in these models, the single production of a g_{KK} from an initial gg state is not possible. The search for other production mechanisms at the LHC,...
hep-ph/0610102
Lev Fil'kov
L.V. Fil'kov and V.L. Kashevarov
Pion Polarizabilities
10 pages, 5 figures. Talk given at XI International Seminar on Electromagnetic Interactions of Nuclei (EMIN-2006), September 21-24, 2006, Moscow, Russia. Typos corrected
null
null
null
hep-ph hep-ex nucl-ex nucl-th
null
Recent experimental pion polarizability data are reviewed and analyzed. Data on the radiative \pi^+ meson photoproduction on the proton at MAMI has been used to determine the difference of the electric and magnetic dipole polarizabilities of the charged pion. Fits of the experimental data to the total cross sections ...
[ { "created": "Mon, 9 Oct 2006 15:37:39 GMT", "version": "v1" }, { "created": "Mon, 13 Nov 2006 14:59:05 GMT", "version": "v2" } ]
2007-05-23
[ [ "Fil'kov", "L. V.", "" ], [ "Kashevarov", "V. L.", "" ] ]
Recent experimental pion polarizability data are reviewed and analyzed. Data on the radiative \pi^+ meson photoproduction on the proton at MAMI has been used to determine the difference of the electric and magnetic dipole polarizabilities of the charged pion. Fits of the experimental data to the total cross sections of...
2001.11347
Dave Dunbar
David C. Dunbar, Warren B. Perkins and Joseph M.W. Strong
An $n$-point QCD two-loop amplitude
v3 : clarification of eq 7.2, citations updated. arXiv admin note: text overlap with arXiv:1911.06547
Phys. Rev. D 101, 076001 (2020)
10.1103/PhysRevD.101.076001
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present an explicit expression for a particular $n$-gluon two loop scattering partial amplitude. Specifically we present an analytic form for the single trace $N_c$ independent colour partial amplitude for the case where all external gluons have positive helicity.
[ { "created": "Thu, 30 Jan 2020 14:25:40 GMT", "version": "v1" }, { "created": "Thu, 13 Feb 2020 13:24:18 GMT", "version": "v2" }, { "created": "Thu, 12 Mar 2020 10:03:41 GMT", "version": "v3" } ]
2020-04-08
[ [ "Dunbar", "David C.", "" ], [ "Perkins", "Warren B.", "" ], [ "Strong", "Joseph M. W.", "" ] ]
We present an explicit expression for a particular $n$-gluon two loop scattering partial amplitude. Specifically we present an analytic form for the single trace $N_c$ independent colour partial amplitude for the case where all external gluons have positive helicity.
hep-ph/9607402
null
I.G.Aznauryan
Relativistic effects in radiative transitions of charmonia
9 pages, LaTeX file, no figs
Phys.Lett.B398:158-162,1997
10.1016/S0370-2693(97)00203-7
null
hep-ph
null
In the framework of a relativistic quark model constructed in an infinite momentum frame, corrections of the order of $v^{2}/c^{2}$ are obtained in the formulas which express amplitudes of the transitions $\psi(\psi') \to \eta_{_{c}}(\eta'_{_{c}})\gamma$, $\chi_{_{J}} \to \psi\gamma$, $\psi' \to \chi_{_{J}}\gamma$, $...
[ { "created": "Tue, 23 Jul 1996 16:34:23 GMT", "version": "v1" } ]
2011-07-19
[ [ "Aznauryan", "I. G.", "" ] ]
In the framework of a relativistic quark model constructed in an infinite momentum frame, corrections of the order of $v^{2}/c^{2}$ are obtained in the formulas which express amplitudes of the transitions $\psi(\psi') \to \eta_{_{c}}(\eta'_{_{c}})\gamma$, $\chi_{_{J}} \to \psi\gamma$, $\psi' \to \chi_{_{J}}\gamma$, $h_...
hep-ph/0210169
Stefan Dittmaier
A.Denner, S.Dittmaier, M.Roth and D.Wackeroth
Challenges in W-pair production
9 pages, latex, 5 postscript files, to appear in the proceedings of the "International Workshop on Linear Colliders", August 26-30, 2002, Jeju Island, Korea
null
null
KA-TP-17-2002, MPI-PhT/2002-57, PSI-PR-02-13, UB-HET-02-07
hep-ph
null
The investigation of W-pair production offers unique precision tests of the electroweak theory at future e+e- colliders, including precise determinations of cross sections, the W-boson mass, and gauge-boson self-couplings. The state-of-the-art and future requirements in the theoretical prediction for the reaction e+e...
[ { "created": "Thu, 10 Oct 2002 19:33:10 GMT", "version": "v1" } ]
2007-05-23
[ [ "Denner", "A.", "" ], [ "Dittmaier", "S.", "" ], [ "Roth", "M.", "" ], [ "Wackeroth", "D.", "" ] ]
The investigation of W-pair production offers unique precision tests of the electroweak theory at future e+e- colliders, including precise determinations of cross sections, the W-boson mass, and gauge-boson self-couplings. The state-of-the-art and future requirements in the theoretical prediction for the reaction e+e- ...
1203.0086
Bo-Qiang Ma
Bo-Qiang Ma
New Chance for Researches on Lorentz Violation
12 pages, no figure. Contribution to the Proceedings of the Symposium on Cosmology and Particle Astrophysics (CosPA2011), based on a talk at this symposium and also a number of talks and seminars elsewhere. Version for publication
Int.J.Mod.Phys.Conf.Ser.10 (2012) 195-206
10.1142/S2010194512005910
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
I present a brief review on the motivation for the study on Lorentz violation and on some of our studies with phenomenological analysis of Lorentz violation effects. I also discuss three effective field theory frameworks for Lorentz violation: the Coleman-Glashow model, the standard model extension (SME), and the sta...
[ { "created": "Thu, 1 Mar 2012 04:19:11 GMT", "version": "v1" }, { "created": "Mon, 5 Mar 2012 17:13:51 GMT", "version": "v2" }, { "created": "Fri, 27 Apr 2012 04:45:14 GMT", "version": "v3" } ]
2012-05-21
[ [ "Ma", "Bo-Qiang", "" ] ]
I present a brief review on the motivation for the study on Lorentz violation and on some of our studies with phenomenological analysis of Lorentz violation effects. I also discuss three effective field theory frameworks for Lorentz violation: the Coleman-Glashow model, the standard model extension (SME), and the stand...
2309.10365
Danny van Dyk
Anja Beck, M\'eril Reboud, Danny van Dyk
Testable Likelihoods for Beyond-the-Standard Model Fits
11 pages, 7 figures
null
null
IPPP/23/49
hep-ph cs.LG
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Studying potential BSM effects at the precision frontier requires accurate transfer of information from low-energy measurements to high-energy BSM models. We propose to use normalising flows to construct likelihood functions that achieve this transfer. Likelihood functions constructed in this way provide the means to...
[ { "created": "Tue, 19 Sep 2023 07:03:41 GMT", "version": "v1" } ]
2023-09-20
[ [ "Beck", "Anja", "" ], [ "Reboud", "Méril", "" ], [ "van Dyk", "Danny", "" ] ]
Studying potential BSM effects at the precision frontier requires accurate transfer of information from low-energy measurements to high-energy BSM models. We propose to use normalising flows to construct likelihood functions that achieve this transfer. Likelihood functions constructed in this way provide the means to g...
1805.00718
Fang Su
Qin Chang, Xiao-Nan Li, Xin-Qiang Li, and Fang Su
Decay constants of pseudoscalar and vector mesons with improved holographic wavefunction
27 pages, 4 figures and 3 tables; typos corrected, references added, final version published in Chinese Physics C
null
10.1088/1674-1137/42/7/073102
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the decay constants of light and heavy-light pseudoscalar and vector mesons with improved soft-wall holographic wavefuntions, which take into account the effects of both quark masses and dynamical spins. We find that the predicted decay constants, especially for the ratio $f_V/f_P$, based on light-front ...
[ { "created": "Wed, 2 May 2018 10:33:11 GMT", "version": "v1" }, { "created": "Mon, 14 May 2018 13:36:30 GMT", "version": "v2" } ]
2018-05-15
[ [ "Chang", "Qin", "" ], [ "Li", "Xiao-Nan", "" ], [ "Li", "Xin-Qiang", "" ], [ "Su", "Fang", "" ] ]
We calculate the decay constants of light and heavy-light pseudoscalar and vector mesons with improved soft-wall holographic wavefuntions, which take into account the effects of both quark masses and dynamical spins. We find that the predicted decay constants, especially for the ratio $f_V/f_P$, based on light-front ho...
hep-ph/0210318
Anindya Datta
Anindya Datta, Emidio Gabrielli, Barbara Mele
Virtual graviton exchanges at the Z-pole in large extra dimensions
Version to appear in Physics Letters B
Phys.Lett. B552 (2003) 237-246
10.1016/S0370-2693(02)03164-7
HIP-2002-42/TH, ROME1-1345/2002
hep-ph hep-ex
null
In the framework of quantum gravity propagating in large extra dimensions, the effects of virtual Kaluza-Klein gravitons on the imaginary part of the amplitude of the process e+ e- --> f f-bar are analyzed at the Z-pole. Notably, the interference of the almost-continuous spectrum of the KK gravitons with the standard...
[ { "created": "Wed, 23 Oct 2002 17:09:36 GMT", "version": "v1" }, { "created": "Thu, 7 Nov 2002 14:45:18 GMT", "version": "v2" }, { "created": "Sat, 7 Dec 2002 11:56:42 GMT", "version": "v3" } ]
2009-11-07
[ [ "Datta", "Anindya", "" ], [ "Gabrielli", "Emidio", "" ], [ "Mele", "Barbara", "" ] ]
In the framework of quantum gravity propagating in large extra dimensions, the effects of virtual Kaluza-Klein gravitons on the imaginary part of the amplitude of the process e+ e- --> f f-bar are analyzed at the Z-pole. Notably, the interference of the almost-continuous spectrum of the KK gravitons with the standard m...
1608.05588
Mustafa Savci
T. M. Aliev (1), T. Barakat (2), M. Savc{\i} (1) ((1) Middle East Technical University/Ankara/Turkey, (2) King Saud University/Riyadh/Saudi Arabia)
Strong coupling constant of negative parity nucleon with $\pi$ meson in light cone QCD sum rules
14 pages, 4 figures, LaTeX formatted
Phys. Rev. C 95, 035210 (2017)
10.1103/PhysRevC.95.035210
metu-phys-hep-16-17
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We estimate strong coupling constant between the negative parity nucleons with $\pi$ meson within the light cone QCD sum rules. A method for eliminating the unwanted contributions coming from the nucleon--nucleon and nucleon--negative parity nucleon transition is presented. It is observed that the value strong coupli...
[ { "created": "Fri, 19 Aug 2016 12:53:45 GMT", "version": "v1" } ]
2017-04-05
[ [ "Aliev", "T. M.", "" ], [ "Barakat", "T.", "" ], [ "Savcı", "M.", "" ] ]
We estimate strong coupling constant between the negative parity nucleons with $\pi$ meson within the light cone QCD sum rules. A method for eliminating the unwanted contributions coming from the nucleon--nucleon and nucleon--negative parity nucleon transition is presented. It is observed that the value strong coupling...
hep-ph/0307127
Hitoshi Murayama
Hitoshi Murayama (UC Berkeley, LBNL)
CPT Tests: Kaon vs Neutrinos
null
Phys.Lett.B597:73-77,2004
10.1016/j.physletb.2004.06.106
UCB-PTH-03/15, LBNL-53300
hep-ph
null
CPT violation has an impressive limit in the neutral kaon system |m(K^0) - m(\bar{K}^0)| < 10^{-18} m_K = 0.50 \times 10^{-18} GeV. However, if viewed as a constraint on the mass-squared, the bound appears weak, |m^2(K^0) - m^2(\bar{K}^0)| < 0.25 eV^2. We point out that neutrino oscillation offers better limits on CP...
[ { "created": "Wed, 9 Jul 2003 08:13:38 GMT", "version": "v1" } ]
2009-09-29
[ [ "Murayama", "Hitoshi", "", "UC Berkeley, LBNL" ] ]
CPT violation has an impressive limit in the neutral kaon system |m(K^0) - m(\bar{K}^0)| < 10^{-18} m_K = 0.50 \times 10^{-18} GeV. However, if viewed as a constraint on the mass-squared, the bound appears weak, |m^2(K^0) - m^2(\bar{K}^0)| < 0.25 eV^2. We point out that neutrino oscillation offers better limits on CPT ...
1311.3733
Walton A. Perkins
Walton A. Perkins
The Antiparticles of Neutral Bosons
15 pages, 1 figure
null
10.4236/jmp.2013.412A1003
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
With the advent of the ability to create and study antihydrogen, we think it is appropriate to consider the possibility that antiphotons might not be identical to photons. First of all, we will look at the experimental evidence concerning multiple neutral pions and multiple photons. Because of its internal structure,...
[ { "created": "Fri, 15 Nov 2013 06:00:19 GMT", "version": "v1" } ]
2017-08-02
[ [ "Perkins", "Walton A.", "" ] ]
With the advent of the ability to create and study antihydrogen, we think it is appropriate to consider the possibility that antiphotons might not be identical to photons. First of all, we will look at the experimental evidence concerning multiple neutral pions and multiple photons. Because of its internal structure, t...
1303.3357
Narendra Sahu
Rupak Dutta, Upender Ch, Anjan K. Giri and Narendra Sahu
Perturbative Bottom-up Approach for Neutrino Mass Matrix in Light of Large \theta_{13} and Role of Lightest Neutrino Mass
26 pages, 42 eps figures, revtex (references are added, more discussions are added in section-III)
null
10.1142/S0217751X14501139
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the role of lightest neutrino mass (m_0) in the neutrino mass matrix, defined in a flavor basis, through a bottom-up approach using the current neutrino oscillation data. We find that if m_0 < 10^{-3} eV, then the deviation \delta M_\nu in the neutrino mass matrix from a tree-level, say tribimaximal neutri...
[ { "created": "Thu, 14 Mar 2013 06:16:42 GMT", "version": "v1" }, { "created": "Tue, 1 Oct 2013 06:13:45 GMT", "version": "v2" } ]
2015-06-15
[ [ "Dutta", "Rupak", "" ], [ "Ch", "Upender", "" ], [ "Giri", "Anjan K.", "" ], [ "Sahu", "Narendra", "" ] ]
We discuss the role of lightest neutrino mass (m_0) in the neutrino mass matrix, defined in a flavor basis, through a bottom-up approach using the current neutrino oscillation data. We find that if m_0 < 10^{-3} eV, then the deviation \delta M_\nu in the neutrino mass matrix from a tree-level, say tribimaximal neutrino...
1107.2666
Ian Shoemaker
Michael L. Graesser, Ian M. Shoemaker, and Luca Vecchi
A dark force for baryons
24 pages + appendices + references, 7 figures
null
null
LA-UR-11-10573
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We suggest the existence of a fundamental connection between baryonic and dark matter. This is motivated by both the stability of these two types of matter as well as the observed similarity of their present-day densities. A unified genesis of baryonic and dark matter is natural in models in which the baryon number i...
[ { "created": "Wed, 13 Jul 2011 20:25:48 GMT", "version": "v1" } ]
2011-07-15
[ [ "Graesser", "Michael L.", "" ], [ "Shoemaker", "Ian M.", "" ], [ "Vecchi", "Luca", "" ] ]
We suggest the existence of a fundamental connection between baryonic and dark matter. This is motivated by both the stability of these two types of matter as well as the observed similarity of their present-day densities. A unified genesis of baryonic and dark matter is natural in models in which the baryon number is ...
hep-ph/9411426
null
Christopher T. Hill
Topcolor Assisted Technicolor
15 Pages
Phys.Lett.B345:483-489,1995
10.1016/0370-2693(94)01660-5
FERMILAB-PUB-94/395
hep-ph
null
A condensate, $\overline{t}t$, arising from $O(TeV)$ scale ``topcolor,'' in addition to technicolor (and ETC) may naturally explain the gauge hierarchy, the large top quark mass, and contains a rich system of testable consequences. A triplet of strongly coupled pseudo--Nambu--Goldstone bosons, ``top-pions,'' near the...
[ { "created": "Tue, 29 Nov 1994 20:45:52 GMT", "version": "v1" }, { "created": "Fri, 2 Dec 1994 15:32:10 GMT", "version": "v2" } ]
2011-01-27
[ [ "Hill", "Christopher T.", "" ] ]
A condensate, $\overline{t}t$, arising from $O(TeV)$ scale ``topcolor,'' in addition to technicolor (and ETC) may naturally explain the gauge hierarchy, the large top quark mass, and contains a rich system of testable consequences. A triplet of strongly coupled pseudo--Nambu--Goldstone bosons, ``top-pions,'' near the t...
hep-ph/0610359
Luis Anchordoqui
Luis A. Anchordoqui, Matthew M. Glenz, and Leonard Parker
Black Holes at the IceCube Neutrino Telescope
Matching version to be published in Phys. Rev. D
Phys.Rev.D75:024011,2007
10.1103/PhysRevD.75.024011
null
hep-ph
null
If the fundamental Planck scale is about a TeV and the cosmic neutrino flux is at the Waxman-Bahcall level, quantum black holes are created daily in the Antarctic ice-cap. We re-examine the prospects for observing such black holes with the IceCube neutrino-detection experiment. To this end, we first revise the black ...
[ { "created": "Fri, 27 Oct 2006 10:19:57 GMT", "version": "v1" }, { "created": "Fri, 3 Nov 2006 22:22:42 GMT", "version": "v2" }, { "created": "Thu, 14 Dec 2006 21:59:44 GMT", "version": "v3" } ]
2008-11-26
[ [ "Anchordoqui", "Luis A.", "" ], [ "Glenz", "Matthew M.", "" ], [ "Parker", "Leonard", "" ] ]
If the fundamental Planck scale is about a TeV and the cosmic neutrino flux is at the Waxman-Bahcall level, quantum black holes are created daily in the Antarctic ice-cap. We re-examine the prospects for observing such black holes with the IceCube neutrino-detection experiment. To this end, we first revise the black ho...
2104.08814
Gang Yang
Gang Yang, Jialun Ping, Jorge Segovia
Exotic resonances of fully-heavy tetraquarks in a lattice-QCD insipired quark model
24 pages, 19 figures, 27 tables
Phys. Rev. D 104, 014006 (2021)
10.1103/PhysRevD.104.014006
null
hep-ph hep-ex hep-lat
http://creativecommons.org/licenses/by/4.0/
Fully-heavy tetraquark states, i.e. $cc\bar{c}\bar{c}$, $bb\bar{b}\bar{b}$, $bb\bar{c}\bar{c}$ ($cc\bar{b}\bar{b}$), $cb\bar{c}\bar{c}$, $cb\bar{b}\bar{b}$, and $cb\bar{c}\bar{b}$, are systematically investigated by means of a non-relativistic quark model based on lattice-QCD studies of the two-body $Q\bar{Q}$ intera...
[ { "created": "Sun, 18 Apr 2021 10:59:46 GMT", "version": "v1" } ]
2021-07-14
[ [ "Yang", "Gang", "" ], [ "Ping", "Jialun", "" ], [ "Segovia", "Jorge", "" ] ]
Fully-heavy tetraquark states, i.e. $cc\bar{c}\bar{c}$, $bb\bar{b}\bar{b}$, $bb\bar{c}\bar{c}$ ($cc\bar{b}\bar{b}$), $cb\bar{c}\bar{c}$, $cb\bar{b}\bar{b}$, and $cb\bar{c}\bar{b}$, are systematically investigated by means of a non-relativistic quark model based on lattice-QCD studies of the two-body $Q\bar{Q}$ interact...
1203.3196
Alexander Merle
Jonas de Woul, Alexander Merle, Tommy Ohlsson
Establishing Analogies between the Physics of Extra Dimensions and Carbon Nanotubes
5 pages, 1 figure; references updated, title changed according to referee's suggestion; content matches published version
null
10.1016/j.physletb.2012.06.047
null
hep-ph cond-mat.mes-hall
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We point out a conceptual analogy between the physics of extra spatial dimensions and the physics of carbon nanotubes which arises for principle reasons, although the corresponding energy scales are at least ten orders of magnitude apart. For low energies, one can apply the Kaluza-Klein description to both types of s...
[ { "created": "Wed, 14 Mar 2012 20:00:03 GMT", "version": "v1" }, { "created": "Thu, 5 Jul 2012 14:55:06 GMT", "version": "v2" } ]
2012-07-06
[ [ "de Woul", "Jonas", "" ], [ "Merle", "Alexander", "" ], [ "Ohlsson", "Tommy", "" ] ]
We point out a conceptual analogy between the physics of extra spatial dimensions and the physics of carbon nanotubes which arises for principle reasons, although the corresponding energy scales are at least ten orders of magnitude apart. For low energies, one can apply the Kaluza-Klein description to both types of sys...
1501.05058
Daisuke Nomura
Keisuke Nakamura and Daisuke Nomura
Charged Lepton Flavor Violation in the Semi-Constrained NMSSM with Right-Handed Neutrinos
16 pages, 3 figures. v2: reference added, typos corrected. v3: put more emphasis on the difference from the MSSM + \nu_R model, reference added, typos corrected, version to appear in Phys. Lett. B
Phys. Lett. B 746 (2015) 396-405
10.1016/j.physletb.2015.05.028
TU-989, YITP-14-108
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the \mu \to e \gamma decay in the Z_3-invariant next-to-minimal supersymmetric (SUSY) Standard Model (NMSSM) with superheavy right-handed neutrinos. We assume that the soft SUSY breaking parameters are generated at the GUT scale, not universally as in the minimal supergravity scenario but in such a way that ...
[ { "created": "Wed, 21 Jan 2015 05:13:16 GMT", "version": "v1" }, { "created": "Sat, 24 Jan 2015 05:22:45 GMT", "version": "v2" }, { "created": "Thu, 21 May 2015 07:01:07 GMT", "version": "v3" } ]
2015-05-27
[ [ "Nakamura", "Keisuke", "" ], [ "Nomura", "Daisuke", "" ] ]
We study the \mu \to e \gamma decay in the Z_3-invariant next-to-minimal supersymmetric (SUSY) Standard Model (NMSSM) with superheavy right-handed neutrinos. We assume that the soft SUSY breaking parameters are generated at the GUT scale, not universally as in the minimal supergravity scenario but in such a way that th...
hep-ph/0509067
Andrea Piccione
Andrea Piccione, Joan Rojo (for the NNPDF Collaboration)
Neural network approach to parton distributions fitting
4 pages, 5 eps figures. Talk given by Andrea Piccione at the "X International Workshop on Advanced Computing and Analysis Techniques in Physics Research", ACAT 2005, DESY-Zeuthen, Germany, 22-27 May 2005. Corrected fig. 4
Nucl.Instrum.Meth. A559 (2006) 203-206
10.1016/j.nima.2005.11.206
null
hep-ph
null
We will show an application of neural networks to extract information on the structure of hadrons. A Monte Carlo over experimental data is performed to correctly reproduce data errors and correlations. A neural network is then trained on each Monte Carlo replica via a genetic algorithm. Results on the proton and deut...
[ { "created": "Wed, 7 Sep 2005 13:23:36 GMT", "version": "v1" }, { "created": "Tue, 18 Oct 2005 14:33:00 GMT", "version": "v2" } ]
2019-08-14
[ [ "Piccione", "Andrea", "", "for the NNPDF Collaboration" ], [ "Rojo", "Joan", "", "for the NNPDF Collaboration" ] ]
We will show an application of neural networks to extract information on the structure of hadrons. A Monte Carlo over experimental data is performed to correctly reproduce data errors and correlations. A neural network is then trained on each Monte Carlo replica via a genetic algorithm. Results on the proton and deuter...
1507.03951
Michael Strickland
Brandon Krouppa, Radoslaw Ryblewski, and Michael Strickland
Bottomonia suppression in 2.76 TeV Pb-Pb collisions
5 pages, 4 figures; tsv files for all plots included in "anc" folder of the submission
Phys. Rev. C 92, 061901 (2015)
10.1103/PhysRevC.92.061901
null
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We compute the QGP suppression of Upsilon(1s), Upsilon(2s), Upsilon(3s), chi_b1, and chi_b2 states in sqrt(s_NN)=2.76 TeV Pb-Pb collisions. Using the suppression of each of these states, we estimate the inclusive R_AA for the Upsilon(1s) and Upsilon(2s) states as a function of N_part, y, and p_T including the effect ...
[ { "created": "Tue, 14 Jul 2015 17:54:47 GMT", "version": "v1" } ]
2015-12-23
[ [ "Krouppa", "Brandon", "" ], [ "Ryblewski", "Radoslaw", "" ], [ "Strickland", "Michael", "" ] ]
We compute the QGP suppression of Upsilon(1s), Upsilon(2s), Upsilon(3s), chi_b1, and chi_b2 states in sqrt(s_NN)=2.76 TeV Pb-Pb collisions. Using the suppression of each of these states, we estimate the inclusive R_AA for the Upsilon(1s) and Upsilon(2s) states as a function of N_part, y, and p_T including the effect of...
hep-ph/0603171
Christopher Gorham Lester
Christopher G. Lester
Constrained invariant mass distributions in cascade decays. The shape of the "$m_{qll}$-threshold" and similar distributions
12 pages, 3 figures
Phys.Lett.B655:39-44,2007
10.1016/j.physletb.2007.08.061
CAVENDISH-HEP-2006/09
hep-ph
null
Considering the cascade decay $D\to c C \to c b B \to c b a A$ in which $D,C,B,A$ are massive particles and $c,b,a$ are massless particles, we determine for the first time the shape of the distribution of the invariant mass of the three massless particles $m_{abc}$ for the sub-set of decays in which the invariant mas...
[ { "created": "Wed, 22 Mar 2006 18:03:38 GMT", "version": "v1" }, { "created": "Wed, 22 Mar 2006 22:03:05 GMT", "version": "v2" } ]
2008-11-26
[ [ "Lester", "Christopher G.", "" ] ]
Considering the cascade decay $D\to c C \to c b B \to c b a A$ in which $D,C,B,A$ are massive particles and $c,b,a$ are massless particles, we determine for the first time the shape of the distribution of the invariant mass of the three massless particles $m_{abc}$ for the sub-set of decays in which the invariant mass ...
hep-ph/9412331
null
M. M. Guzzo, O. L. G. Peres, V. Pleitez and R. Zukanovich Funchal
Adiabatic matter effect with three generation neutrinos and the solar neutrino problem
11 pages, Revtex 3.0, two ps figures appended
null
null
IFT-P.003/95; DCR-TH 05/94; IFUSP-P/1133
hep-ph
null
We find an exact analytic solution for the time evolution of a three Dirac neutrino system adiabatically oscillating in matter, constructing explicitly the relevant $3\times 3$ mixing matrix in matter. Using this result we investigate the solar neutrino data in a scenario where the neutrino masses are such that $m_1\...
[ { "created": "Tue, 20 Dec 1994 10:53:21 GMT", "version": "v1" } ]
2009-09-25
[ [ "Guzzo", "M. M.", "" ], [ "Peres", "O. L. G.", "" ], [ "Pleitez", "V.", "" ], [ "Funchal", "R. Zukanovich", "" ] ]
We find an exact analytic solution for the time evolution of a three Dirac neutrino system adiabatically oscillating in matter, constructing explicitly the relevant $3\times 3$ mixing matrix in matter. Using this result we investigate the solar neutrino data in a scenario where the neutrino masses are such that $m_1\al...
2301.06104
Di Wang
Di Wang
Generation of isospin sum rules in heavy hadron weak decays
26 pages, Version published in JHEP
JHEP 05 (2023) 064
10.1007/JHEP05(2023)064
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Isospin symmetry is the most precise flavor symmetry. In this work, we propose an approach to generate isospin sum rules for heavy hadron decays without the Wigner-Eckhart invariants. The effective Hamiltonian of heavy quark weak decay is fully invariant under a series of isospin lowering operators $I_-^n$ and then t...
[ { "created": "Sun, 15 Jan 2023 14:24:34 GMT", "version": "v1" }, { "created": "Wed, 10 May 2023 09:31:24 GMT", "version": "v2" } ]
2023-05-11
[ [ "Wang", "Di", "" ] ]
Isospin symmetry is the most precise flavor symmetry. In this work, we propose an approach to generate isospin sum rules for heavy hadron decays without the Wigner-Eckhart invariants. The effective Hamiltonian of heavy quark weak decay is fully invariant under a series of isospin lowering operators $I_-^n$ and then the...
1912.01758
Sandra Robles
M. E. Cabrera, J. A. Casas, A. Delgado, S. Robles
Generalized Blind Spots for Dark Matter Direct Detection in the 2HDM
16 pages, 5 figures, 2 tables. References added, matches JHEP published version
JHEP 02 (2020) 166
10.1007/JHEP02(2020)166
IFT-UAM/CSIC-19-160
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we study the presence of generalized blind spots, i.e. regions of the parameter space where the spin-independent cross section for dark matter direct detection is suppressed, in the context of a generic 2HDM and a minimal fermionic Higgs-portal dark sector. To this end, we derive analytical expressions ...
[ { "created": "Wed, 4 Dec 2019 01:22:07 GMT", "version": "v1" }, { "created": "Thu, 27 Feb 2020 07:07:16 GMT", "version": "v2" } ]
2020-02-28
[ [ "Cabrera", "M. E.", "" ], [ "Casas", "J. A.", "" ], [ "Delgado", "A.", "" ], [ "Robles", "S.", "" ] ]
In this paper we study the presence of generalized blind spots, i.e. regions of the parameter space where the spin-independent cross section for dark matter direct detection is suppressed, in the context of a generic 2HDM and a minimal fermionic Higgs-portal dark sector. To this end, we derive analytical expressions fo...
0907.3607
Lusaka Bhattacharya
Lusaka Bhattacharya and Pradip Roy
Rapidity distribution of photons from an anisotropic Quark-Gluon-Plasma
19 pages, 18 eps figures, Accepted for publication in Physical Review C
Phys.Rev.C81:054904,2010
10.1103/PhysRevC.81.054904
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate rapidity distribution of photons due to Compton and annihilation processes from {\em Quark Gluon Plasma} (QGP) with pre-equilibrium momentum-space anisotropy. We also include contributions from hadronic matter with late stage transverse expansion. A phenomenological model has been used for the time evolu...
[ { "created": "Tue, 21 Jul 2009 10:27:49 GMT", "version": "v1" }, { "created": "Wed, 5 May 2010 06:46:56 GMT", "version": "v2" } ]
2014-11-20
[ [ "Bhattacharya", "Lusaka", "" ], [ "Roy", "Pradip", "" ] ]
We calculate rapidity distribution of photons due to Compton and annihilation processes from {\em Quark Gluon Plasma} (QGP) with pre-equilibrium momentum-space anisotropy. We also include contributions from hadronic matter with late stage transverse expansion. A phenomenological model has been used for the time evoluti...
hep-ph/0509078
Giuseppe Marchesini
Yu.L. Dokshitzer and G. Marchesini
Soft gluons at large angles in hadron collisions
29 pages, pictures generated with feynmf graphic package
JHEP0601:007,2006
10.1088/1126-6708/2006/01/007
Bicocca-FT-05-19, LPTHE-05-23
hep-ph
null
A general discussion is presented of the single logarithmic soft factor that appears in two scale QCD observables in processes involving four partons. We treat it as the ``fifth form factor'', accompanying the four collinear singular Sudakov form factors attached to colliding and outgoing hard partons. The fifth form...
[ { "created": "Thu, 8 Sep 2005 14:52:29 GMT", "version": "v1" }, { "created": "Sat, 10 Sep 2005 13:27:52 GMT", "version": "v2" } ]
2009-11-11
[ [ "Dokshitzer", "Yu. L.", "" ], [ "Marchesini", "G.", "" ] ]
A general discussion is presented of the single logarithmic soft factor that appears in two scale QCD observables in processes involving four partons. We treat it as the ``fifth form factor'', accompanying the four collinear singular Sudakov form factors attached to colliding and outgoing hard partons. The fifth form f...
hep-ph/9210216
null
Michael Chanowitz
Complementarity of Resonant and Nonresonant Strong WW Scattering at SSC and LHC
8 pages (figures on request by Pony Express), LBL-32938
null
10.1063/1.43426
null
hep-ph
null
Signals and backgrounds for strong $WW$ scattering at the SSC and LHC are considered. Complementarity of resonant signals in the $I=1$ $WZ$ channel and nonresonant signals in the $I=2$ \wpwp channel is illustrated using a chiral lagrangian with a $J=1$ \qrho resonance. Results are presented for purely leptonic final ...
[ { "created": "Tue, 6 Oct 1992 18:25:25 GMT", "version": "v1" } ]
2009-10-22
[ [ "Chanowitz", "Michael", "" ] ]
Signals and backgrounds for strong $WW$ scattering at the SSC and LHC are considered. Complementarity of resonant signals in the $I=1$ $WZ$ channel and nonresonant signals in the $I=2$ \wpwp channel is illustrated using a chiral lagrangian with a $J=1$ \qrho resonance. Results are presented for purely leptonic final st...
hep-ph/0612245
Ambar Ghosal
Ambar Ghosal
Recent Models of Neutrino Masses and Mixing
11 pages, no figures, Plenary Talk given at DAE-BRNS High Energy Physics Symposium, Indian Institute of Technology, Kharagpur, India,December 2006
null
null
null
hep-ph
null
In this talk, I have reviewed few recent models on neutrino masses and mixing. Particularly, I have emphasised on $A_4$ symmetric models.
[ { "created": "Wed, 20 Dec 2006 08:53:59 GMT", "version": "v1" } ]
2007-05-23
[ [ "Ghosal", "Ambar", "" ] ]
In this talk, I have reviewed few recent models on neutrino masses and mixing. Particularly, I have emphasised on $A_4$ symmetric models.
hep-ph/0206245
Xing ZhiZhong
Zhi-zhong Xing
A Predictive Ansatz for Neutrino Mixing and Leptogenesis
RevTex 14 pages. More discussions added. Accepted for publication in Phys. Lett. B
Phys.Lett. B545 (2002) 352-360
10.1016/S0370-2693(02)02615-1
BIHEP-TH-2002-26
hep-ph
null
We propose a non-SO(10) modification of the Buchmueller-Wyler ansatz for neutrino mixing and leptogenesis, in which charged lepton, Dirac and Majorana neutrino mass matrices have fewer free parameters. Predictions of this new ansatz for three light neutrino masses, three lepton flavor mixing angles, the neutrinoless ...
[ { "created": "Tue, 25 Jun 2002 02:57:37 GMT", "version": "v1" }, { "created": "Thu, 29 Aug 2002 00:54:49 GMT", "version": "v2" } ]
2009-11-07
[ [ "Xing", "Zhi-zhong", "" ] ]
We propose a non-SO(10) modification of the Buchmueller-Wyler ansatz for neutrino mixing and leptogenesis, in which charged lepton, Dirac and Majorana neutrino mass matrices have fewer free parameters. Predictions of this new ansatz for three light neutrino masses, three lepton flavor mixing angles, the neutrinoless do...
hep-ph/9504300
Andre Sopczak
A. Sopczak (PPE Division, CERN)
Status of Higgs Hunting at LEP -- Five Years of Progress
20 pages, 49 figures, PS file
null
null
null
hep-ph
null
New results from general searches for the Higgs boson of the Minimal Standard Model (MSM), and for neutral and charged Higgs bosons of non-minimal Higgs models are reviewed from the four LEP experiments at CERN: ALEPH, DELPHI, L3, and OPAL. Much progress has been made due to the analysis of new data sets. A total of ...
[ { "created": "Fri, 14 Apr 1995 01:37:11 GMT", "version": "v1" } ]
2007-05-23
[ [ "Sopczak", "A.", "", "PPE Division, CERN" ] ]
New results from general searches for the Higgs boson of the Minimal Standard Model (MSM), and for neutral and charged Higgs bosons of non-minimal Higgs models are reviewed from the four LEP experiments at CERN: ALEPH, DELPHI, L3, and OPAL. Much progress has been made due to the analysis of new data sets. A total of ab...
1404.4873
Ulrich Haisch
Martin Gorbahn and Ulrich Haisch
Searching for t->c(u)h with dipole moments
18 pages, 2 figures; v2: references added and typos corrected; coincides with version to be published in JHEP
null
10.1007/JHEP06(2014)033
LTH 1006
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A discovery of flavour-changing Higgs-boson decays would constitute an undeniable signal of new physics. We derive model-independent constraints on the tch and tuh couplings that arise from the bounds on hadronic electric dipole moments. Comparisons of the present and future sensitivities with both the direct LHC con...
[ { "created": "Fri, 18 Apr 2014 20:00:03 GMT", "version": "v1" }, { "created": "Thu, 5 Jun 2014 14:40:03 GMT", "version": "v2" } ]
2015-06-19
[ [ "Gorbahn", "Martin", "" ], [ "Haisch", "Ulrich", "" ] ]
A discovery of flavour-changing Higgs-boson decays would constitute an undeniable signal of new physics. We derive model-independent constraints on the tch and tuh couplings that arise from the bounds on hadronic electric dipole moments. Comparisons of the present and future sensitivities with both the direct LHC const...
1501.04161
Ryosuke Sato
Tomohiro Abe and Ryosuke Sato
Quantum corrections to the spin-independent cross section of the inert doublet dark matter
38 pages, 18 figures
null
null
KEK-TH-1787
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The inert Higgs doublet model contains a stable neutral boson as a candidate of dark matter. We calculate cross section for spin-independent scattering of the dark matter on nucleon. We take into account electroweak and scalar quartic interactions, and evaluate effects of scattering with quarks at one-loop level and ...
[ { "created": "Sat, 17 Jan 2015 05:46:00 GMT", "version": "v1" } ]
2015-01-20
[ [ "Abe", "Tomohiro", "" ], [ "Sato", "Ryosuke", "" ] ]
The inert Higgs doublet model contains a stable neutral boson as a candidate of dark matter. We calculate cross section for spin-independent scattering of the dark matter on nucleon. We take into account electroweak and scalar quartic interactions, and evaluate effects of scattering with quarks at one-loop level and wi...
hep-ph/9811408
Luciene Pontes Freitas
O. L. G. Peres, L. P. Freitas and R. Zukanovich Funchal
Limits on Majorana Neutrinos from Recent Experimental Data
19 pages, 2 figures
Phys.Rev. D59 (1999) 113014
10.1103/PhysRevD.59.113014
null
hep-ph
null
We investigate the sensitivity of some weak processes to the simplest extension of the Standard Model with Majorana neutrinos mixing in the leptonic sector. Values for mixing angles and masses compatible with several experimental accelerator data and the most recent neutrinoless double--$\beta$ decay limit were found...
[ { "created": "Thu, 19 Nov 1998 18:49:19 GMT", "version": "v1" }, { "created": "Mon, 30 Nov 1998 17:35:55 GMT", "version": "v2" }, { "created": "Thu, 25 Feb 1999 12:40:09 GMT", "version": "v3" } ]
2009-10-31
[ [ "Peres", "O. L. G.", "" ], [ "Freitas", "L. P.", "" ], [ "Funchal", "R. Zukanovich", "" ] ]
We investigate the sensitivity of some weak processes to the simplest extension of the Standard Model with Majorana neutrinos mixing in the leptonic sector. Values for mixing angles and masses compatible with several experimental accelerator data and the most recent neutrinoless double--$\beta$ decay limit were found.
hep-ph/9307227
S. Keller
U. Baur, F. Halzen, S.Keller, M. L. Mangano, and K. Riesselmann
Measurement of the Strange Quark Distribution Function in W + Charm Quark Events
Latex, 9 pages + 2 postscript figures encoded with uufile, FSU-HEP-930608, MAD/TH/93/4, MAD/PH/769. A postscript file with text and embedded figures is available via anonymous ftp at hepsg1.physics.fsu.edu, file is /pub/keller/fsu-hep-930608.ps
null
null
null
hep-ph
null
We investigate the prospects of measuring the strange quark distribution function at the Tevatron, using $W$ plus charm quark events. The $W$ plus charm quark signal produced by strange quark--gluon fusion, $sg\rightarrow W^-c$ and $\bar sg\rightarrow W^+\bar c$, is approximately 5\% of the inclusive $W+1$ jet cross ...
[ { "created": "Tue, 6 Jul 1993 19:03:21 GMT", "version": "v1" } ]
2007-05-23
[ [ "Baur", "U.", "" ], [ "Halzen", "F.", "" ], [ "Keller", "S.", "" ], [ "Mangano", "M. L.", "" ], [ "Riesselmann", "K.", "" ] ]
We investigate the prospects of measuring the strange quark distribution function at the Tevatron, using $W$ plus charm quark events. The $W$ plus charm quark signal produced by strange quark--gluon fusion, $sg\rightarrow W^-c$ and $\bar sg\rightarrow W^+\bar c$, is approximately 5\% of the inclusive $W+1$ jet cross se...
hep-ph/9505243
Mike A. Walker
M.A. Walker (Purdue University)
AN OPERATOR ANALYSIS OF A SUPERSYMMETRIC EFFECTIVE THEORY
20 pages uses standard LaTex format
Int.J.Mod.Phys. A11 (1996) 1007-1018
10.1142/S0217751X9600047X
PURD-TH-95-04
hep-ph
null
An analysis of a $SU(2)_L \times SU(2)_R$ invariant, supersymmetric effective theory is given. The resulting leading and next to leading independent invariants are stated in terms of the underlying Killing vectors and K\"ahler potential. The appendices are devoted to the relationship between this geometrical point of...
[ { "created": "Fri, 5 May 1995 20:12:17 GMT", "version": "v1" } ]
2015-06-25
[ [ "Walker", "M. A.", "", "Purdue University" ] ]
An analysis of a $SU(2)_L \times SU(2)_R$ invariant, supersymmetric effective theory is given. The resulting leading and next to leading independent invariants are stated in terms of the underlying Killing vectors and K\"ahler potential. The appendices are devoted to the relationship between this geometrical point of v...
hep-ph/0407290
Wojciech Broniowski
Wojciech Broniowski, Wojciech Florkowski, Leonid Ya. Glozman
Update of the Hagedorn mass spectrum
4 pages, 4 figures
Phys.Rev. D70 (2004) 117503
10.1103/PhysRevD.70.117503
null
hep-ph
null
We present an update of the Hagedorn hypothesis of the exponential growth of the number of hadronic resonances with mass. We use the newest available experimental data for the non-strange mesons and baryons, as well as fill in some missing states according to the observation that the high-lying states form chiral mul...
[ { "created": "Sun, 25 Jul 2004 20:12:58 GMT", "version": "v1" } ]
2009-11-10
[ [ "Broniowski", "Wojciech", "" ], [ "Florkowski", "Wojciech", "" ], [ "Glozman", "Leonid Ya.", "" ] ]
We present an update of the Hagedorn hypothesis of the exponential growth of the number of hadronic resonances with mass. We use the newest available experimental data for the non-strange mesons and baryons, as well as fill in some missing states according to the observation that the high-lying states form chiral multi...
2307.14053
Osamu Seto
Nobuchika Okada and Osamu Seto
Intergenerational gauged $B-L$ model and its implication to muon $g-2$ anomaly and thermal dark matter
20 pages, 6 figures, 3 tables, references added, journal version
Phys. Rev. D 108, 083504 (2023)
10.1103/PhysRevD.108.083504
EPHOU-23-015
hep-ph astro-ph.CO
http://creativecommons.org/licenses/by/4.0/
We study the flavor dependent $U(1)_{B_i-L_j}$ models, where an $i$th generation of quarks and $j(\neq i)$th generation of leptons are charged. By solving the anomaly free condition for the matter sector of the SM fermions and three generations of right-handed (RH) neutrinos, we find that the $j$th generation of RH n...
[ { "created": "Wed, 26 Jul 2023 09:05:02 GMT", "version": "v1" }, { "created": "Tue, 3 Oct 2023 03:19:33 GMT", "version": "v2" } ]
2023-10-04
[ [ "Okada", "Nobuchika", "" ], [ "Seto", "Osamu", "" ] ]
We study the flavor dependent $U(1)_{B_i-L_j}$ models, where an $i$th generation of quarks and $j(\neq i)$th generation of leptons are charged. By solving the anomaly free condition for the matter sector of the SM fermions and three generations of right-handed (RH) neutrinos, we find that the $j$th generation of RH neu...
hep-ph/0008260
Martin McDermott
M. F. McDermott
The dipole picture of small x physics (a summary of the Amirim meeting)
28 pages, latex, 6 figures. Fig. 6 now displayed properly, two minor typos corrected
null
null
null
hep-ph
null
A personal summary of the discussions which took place at the informal meeting in Amirim, Israel from June 1-4 2000, concerning the dipole picture of small-$x$ physics is presented. The broad aim of the meeting was to address the question ``Has HERA reached a new QCD regime (at small $x$) ?''. The new regime in quest...
[ { "created": "Thu, 24 Aug 2000 13:35:42 GMT", "version": "v1" }, { "created": "Fri, 25 Aug 2000 12:53:15 GMT", "version": "v2" } ]
2007-05-23
[ [ "McDermott", "M. F.", "" ] ]
A personal summary of the discussions which took place at the informal meeting in Amirim, Israel from June 1-4 2000, concerning the dipole picture of small-$x$ physics is presented. The broad aim of the meeting was to address the question ``Has HERA reached a new QCD regime (at small $x$) ?''. The new regime in questio...
1312.5406
Alka Upadhyay
A. Upadhyay, M. Batra
B-meson spectroscopy in heavy hadron chiral perturbation theory
Proceedings of DAE symposium in nuclear physics,vol. 58, 2013
null
null
null
hep-ph
http://creativecommons.org/licenses/by/3.0/
The theory of heavy meson masses, in which the symmetries of heavy and light quarks are exploited, can be used to describe the low energy interaction among heavy mesons to a better extent. The spin-flavor symmetry leads to many interesting relations between the properties of hadrons containing a heavy quark. The most...
[ { "created": "Thu, 19 Dec 2013 05:06:08 GMT", "version": "v1" } ]
2013-12-20
[ [ "Upadhyay", "A.", "" ], [ "Batra", "M.", "" ] ]
The theory of heavy meson masses, in which the symmetries of heavy and light quarks are exploited, can be used to describe the low energy interaction among heavy mesons to a better extent. The spin-flavor symmetry leads to many interesting relations between the properties of hadrons containing a heavy quark. The most d...
hep-ph/9303243
Sanghyun Chang
Sanghyeon Chang, Kiwoon Choi
Constraints from Nucleosynthesis and SN1987A on Majoron Emitting Double Beta Decay
12pages, 1 figure by PicTex, SNUTP 92-87
Phys.Rev.D49:12-15,1994
10.1103/PhysRevD.49.12
null
hep-ph astro-ph
null
We examine whether observable majoron emission in double beta decay can be compatible with the big-bang nucleosynthesis (NS) and the observed neutrino flux from SN1987A. It is found that the NS upper bound on $^4$He abundance implies that the majoron-neutrino Yukawa coupling constant $g\leq 9\times 10^{-6}$ and its m...
[ { "created": "Thu, 11 Mar 1993 06:26:29 GMT", "version": "v1" } ]
2009-12-30
[ [ "Chang", "Sanghyeon", "" ], [ "Choi", "Kiwoon", "" ] ]
We examine whether observable majoron emission in double beta decay can be compatible with the big-bang nucleosynthesis (NS) and the observed neutrino flux from SN1987A. It is found that the NS upper bound on $^4$He abundance implies that the majoron-neutrino Yukawa coupling constant $g\leq 9\times 10^{-6}$ and its max...
2203.07778
Hee Sok Chung
Nora Brambilla, Hee Sok Chung, Antonio Vairo, Xiang-Peng Wang
Production and polarization of $S$-wave quarkonia in potential nonrelativistic QCD
6 pages, 2 figures, 2 tables, minor corrections, version published as a Letter in Phys. Rev. D
Phys. Rev. D 105, L111503 (2022)
10.1103/PhysRevD.105.L111503
TUM-EFT 168/22
hep-ph hep-ex hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Based on the potential nonrelativistic QCD formalism, we compute the nonrelativistic QCD long-distance matrix elements (LDMEs) for inclusive production of $S$-wave heavy quarkonia. This greatly reduces the number of nonperturbative unknowns and brings in a substantial enhancement in the predictive power of the nonrel...
[ { "created": "Tue, 15 Mar 2022 10:58:01 GMT", "version": "v1" }, { "created": "Mon, 27 Jun 2022 05:04:14 GMT", "version": "v2" } ]
2022-06-28
[ [ "Brambilla", "Nora", "" ], [ "Chung", "Hee Sok", "" ], [ "Vairo", "Antonio", "" ], [ "Wang", "Xiang-Peng", "" ] ]
Based on the potential nonrelativistic QCD formalism, we compute the nonrelativistic QCD long-distance matrix elements (LDMEs) for inclusive production of $S$-wave heavy quarkonia. This greatly reduces the number of nonperturbative unknowns and brings in a substantial enhancement in the predictive power of the nonrelat...
hep-ph/0205065
Dan Pirjol
Michael Gronau and Dan Pirjol
Photon polarization in radiative B decays
22 pages, 3 figures, version to appear in Phys. Rev. D
Phys.Rev. D66 (2002) 054008
10.1103/PhysRevD.66.054008
TECHNION-PH-2002-18, UCSD/PTH 02-10
hep-ph hep-ex
null
We study decay distributions in B -> K pi pi gamma, combining contributions from several overlapping resonances in a K pi pi mass range near 1400 MeV, (1^+) K_1(1400), (2^+) K^*_2(1430) and (1^-) K^*(1410). A method is proposed for using these distributions to determine a photon polarization parameter in the effectiv...
[ { "created": "Tue, 7 May 2002 18:10:19 GMT", "version": "v1" }, { "created": "Thu, 8 Aug 2002 16:52:56 GMT", "version": "v2" } ]
2009-11-07
[ [ "Gronau", "Michael", "" ], [ "Pirjol", "Dan", "" ] ]
We study decay distributions in B -> K pi pi gamma, combining contributions from several overlapping resonances in a K pi pi mass range near 1400 MeV, (1^+) K_1(1400), (2^+) K^*_2(1430) and (1^-) K^*(1410). A method is proposed for using these distributions to determine a photon polarization parameter in the effective ...
hep-ph/0011137
Antonio Soares de Castro
A.S. de Castro (1), J. Franklin (2) ((1)UNESP/Campus de Guaratingueta, (2) Temple University)
Some exact solutions of the Dirac equation
4 pages. No figures. Presented in Hadron 2000: International Workshop on Hadron Physics, Caraguatatuba, SP, Brasil, April 2000
null
10.1142/9789812811653_0020
null
hep-ph quant-ph
null
Exact analytic solutions are found to the Dirac equation for a combination of Lorentz scalar and vector Coulombic potentials with additional non-Coulombic parts. An appropriate linear combination of Lorentz scalar and vector non-Coulombic potentials, with the scalar part dominating, can be chosen to give exact analyt...
[ { "created": "Thu, 9 Nov 2000 22:24:48 GMT", "version": "v1" } ]
2017-08-23
[ [ "de Castro", "A. S.", "" ], [ "Franklin", "J.", "" ] ]
Exact analytic solutions are found to the Dirac equation for a combination of Lorentz scalar and vector Coulombic potentials with additional non-Coulombic parts. An appropriate linear combination of Lorentz scalar and vector non-Coulombic potentials, with the scalar part dominating, can be chosen to give exact analytic...
hep-ph/0703115
Davor Horvatic
D. Horvatic, D. Blaschke, D. Klabucar, A. E. Radzhabov
Pseudoscalar Meson Nonet at Zero and Finite Temperature
14 pages, 11 figures, accepted for publication in Physics of Particles and Nuclei Letters, based on invited lectures at "Dense Matter In Heavy Ion Collisions and Astrophysics", 21.08-01.09 2006, Dubna, Russia
Phys.Part.Nucl.39:1033-1039,2008
10.1134/S1063779608070095
ZTF-06-09-1
hep-ph nucl-th
null
Theoretical understanding of experimental results from relativistic heavy-ion collisions requires a microscopic approach to the behavior of QCD n-point functions at finite temperatures, as given by the hierarchy of Dyson-Schwinger equations, properly generalized within the Matsubara formalism. The convergence of sums...
[ { "created": "Sun, 11 Mar 2007 14:39:00 GMT", "version": "v1" } ]
2008-12-18
[ [ "Horvatic", "D.", "" ], [ "Blaschke", "D.", "" ], [ "Klabucar", "D.", "" ], [ "Radzhabov", "A. E.", "" ] ]
Theoretical understanding of experimental results from relativistic heavy-ion collisions requires a microscopic approach to the behavior of QCD n-point functions at finite temperatures, as given by the hierarchy of Dyson-Schwinger equations, properly generalized within the Matsubara formalism. The convergence of sums o...
2104.13954
Maxim V. Polyakov
Jambul Gegelia, Maxim V. Polyakov
A bound on the nucleon Druck-term from chiral EFT in curved space-time and mechanical stability conditions
minor corrections, version accepted for publication
null
10.1016/j.physletb.2021.136572
null
hep-ph hep-ex nucl-th
http://creativecommons.org/licenses/by/4.0/
Using dispersive representations of the nucleon gravitational form factors, the results for their absorptive parts from chiral effective field theory in curved space-time, and the mechanical stability conditions, we obtain a model independent inequality for the value of the gravitational $D(t)$ form factor at zero mo...
[ { "created": "Wed, 28 Apr 2021 18:23:30 GMT", "version": "v1" }, { "created": "Tue, 3 Aug 2021 15:27:26 GMT", "version": "v2" } ]
2021-08-11
[ [ "Gegelia", "Jambul", "" ], [ "Polyakov", "Maxim V.", "" ] ]
Using dispersive representations of the nucleon gravitational form factors, the results for their absorptive parts from chiral effective field theory in curved space-time, and the mechanical stability conditions, we obtain a model independent inequality for the value of the gravitational $D(t)$ form factor at zero mome...
1505.02624
David d'Enterria
David d'Enterria and and Redamy P\'erez-Ramos
$\alpha_s$ determination at NNLO$^\star$+NNLL accuracy from the energy evolution of jet fragmentation functions at low $z$
4 pages, 3 figures. Proceedings Rencontres Moriond "QCD and high energy interactions", March 2015, La Thuile. Typo corrected
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The QCD coupling $\alpha_s$ is extracted from the energy evolution of the first two moments (multiplicity and mean) of the parton-to-hadron fragmentation functions at low fractional hadron momentum $z$. Comparisons of the experimental $e^+e^-$ and deep-inelastic $e^\pm$p jet data to our NNLO$^*$+NNLL predictions, all...
[ { "created": "Mon, 11 May 2015 14:00:25 GMT", "version": "v1" }, { "created": "Tue, 19 May 2015 14:27:57 GMT", "version": "v2" } ]
2015-05-20
[ [ "d'Enterria", "David", "" ], [ "Pérez-Ramos", "and Redamy", "" ] ]
The QCD coupling $\alpha_s$ is extracted from the energy evolution of the first two moments (multiplicity and mean) of the parton-to-hadron fragmentation functions at low fractional hadron momentum $z$. Comparisons of the experimental $e^+e^-$ and deep-inelastic $e^\pm$p jet data to our NNLO$^*$+NNLL predictions, allow...
1510.07902
Baoyi Chen
Baoyi Chen
Charmonium Production with QGP and Hadron Gas Effects at SPS and FAIR
6 pages, 7 figures
Phys. Rev. C 93, 044917 (2016)
10.1103/PhysRevC.93.044917
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The production of charmonium in heavy-ion collisions is investigated based on Boltzmann-type transport model for charmonium evolution and langevin equation for charm quark evolution. Charmonium suppression and regeneration in both quark-gluon plasma (QGP) and hadron phase are considered. Charm quarks are far from the...
[ { "created": "Tue, 27 Oct 2015 13:50:11 GMT", "version": "v1" }, { "created": "Mon, 2 Nov 2015 00:53:19 GMT", "version": "v2" } ]
2016-05-04
[ [ "Chen", "Baoyi", "" ] ]
The production of charmonium in heavy-ion collisions is investigated based on Boltzmann-type transport model for charmonium evolution and langevin equation for charm quark evolution. Charmonium suppression and regeneration in both quark-gluon plasma (QGP) and hadron phase are considered. Charm quarks are far from therm...
2112.07680
Anjie Gao
Markus A. Ebert, Anjie Gao, and Iain W. Stewart
Factorization for Azimuthal Asymmetries in SIDIS at Next-to-Leading Power
118 pages, 1 figure; Update fixing typos and with complex C^(1) [JHEP erratum version]
null
10.1007/JHEP06(2022)007
MPP--2021--203, MIT--CTP--5373
hep-ph nucl-th
http://creativecommons.org/licenses/by/4.0/
Differential measurements of the semi-inclusive deep inelastic scattering (SIDIS) process with polarized beams provide important information on the three-dimensional structure of hadrons. Among the various observables are azimuthal asymmetries that start at subleading power, and which give access to novel transverse ...
[ { "created": "Tue, 14 Dec 2021 19:00:01 GMT", "version": "v1" }, { "created": "Fri, 24 Jun 2022 03:40:05 GMT", "version": "v2" }, { "created": "Tue, 20 Jun 2023 15:54:13 GMT", "version": "v3" } ]
2023-06-21
[ [ "Ebert", "Markus A.", "" ], [ "Gao", "Anjie", "" ], [ "Stewart", "Iain W.", "" ] ]
Differential measurements of the semi-inclusive deep inelastic scattering (SIDIS) process with polarized beams provide important information on the three-dimensional structure of hadrons. Among the various observables are azimuthal asymmetries that start at subleading power, and which give access to novel transverse mo...
hep-ph/0412177
Claude Semay
F. Brau, C. Semay
A mass formula for light mesons from a potential model
5 figures
J.Phys.G28:2771-2781,2002
10.1088/0954-3899/28/11/303
null
hep-ph
null
The quark dynamics inside light mesons, except pseudoscalar ones, can be quite well described by a spinless Salpeter equation supplemented by a Cornell interaction (possibly partly vector, partly scalar). A mass formula for these mesons can then be obtained by computing analytical approximations of the eigenvalues of...
[ { "created": "Tue, 14 Dec 2004 13:36:28 GMT", "version": "v1" } ]
2008-11-26
[ [ "Brau", "F.", "" ], [ "Semay", "C.", "" ] ]
The quark dynamics inside light mesons, except pseudoscalar ones, can be quite well described by a spinless Salpeter equation supplemented by a Cornell interaction (possibly partly vector, partly scalar). A mass formula for these mesons can then be obtained by computing analytical approximations of the eigenvalues of t...
2111.02417
Tobias Isken
Hakan Akdag, Tobias Isken, Bastian Kubis
Patterns of $C$- and $CP$-violation in hadronic $\eta$ and $\eta'$ three-body decays
43 pages, 9 figures, 5 tables; v2: discussion extended, version published in JHEP; v3: incorporates an erratum that fixes the phases of the C-violating norms by hermiticity and time reversal
JHEP 02 (2022) 137; JHEP 12 (2022) 156 (erratum)
10.1007/JHEP02(2022)137
null
hep-ph hep-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We construct hadronic amplitudes for the three-body decays $\eta^{(\prime)}\to\pi^+\pi^-\pi^0$ and $\eta'\to\eta\pi^+\pi^-$ in a non-perturbative fashion, allowing for $C$- and $CP$-violating asymmetries in the $\pi^+\pi^-$ distributions. These amplitudes are consistent with the constraints of analyticity and unitari...
[ { "created": "Wed, 3 Nov 2021 18:00:01 GMT", "version": "v1" }, { "created": "Tue, 22 Feb 2022 17:32:06 GMT", "version": "v2" }, { "created": "Fri, 27 Jan 2023 15:10:33 GMT", "version": "v3" } ]
2023-01-30
[ [ "Akdag", "Hakan", "" ], [ "Isken", "Tobias", "" ], [ "Kubis", "Bastian", "" ] ]
We construct hadronic amplitudes for the three-body decays $\eta^{(\prime)}\to\pi^+\pi^-\pi^0$ and $\eta'\to\eta\pi^+\pi^-$ in a non-perturbative fashion, allowing for $C$- and $CP$-violating asymmetries in the $\pi^+\pi^-$ distributions. These amplitudes are consistent with the constraints of analyticity and unitarity...
hep-ph/0012083
Antonio Lopez Maroto
A.L. Maroto and J.R. Pelaez
Gravitino production during preheating and the equivalence theorem
4 pages, 1 figure. Contribution to the Proceedings of the EuroConference on Frontiers in Particle Astrophysics and Cosmology, San Feliu de Guixols, Spain, 30 September - 5 October 2000
Nucl.Phys.Proc.Suppl.95:47-50,2001
10.1016/S0920-5632(01)01052-0
null
hep-ph
null
We review our results on the calculation of helicity 1/2 gravitino production during preheating. The method we present is based on the equivalence between goldstinos and longitudinal gravitinos at high energies. The problem is thus reduced to the standard (Majorana) fermion production after inflation. Comparison betw...
[ { "created": "Thu, 7 Dec 2000 14:37:27 GMT", "version": "v1" } ]
2008-11-26
[ [ "Maroto", "A. L.", "" ], [ "Pelaez", "J. R.", "" ] ]
We review our results on the calculation of helicity 1/2 gravitino production during preheating. The method we present is based on the equivalence between goldstinos and longitudinal gravitinos at high energies. The problem is thus reduced to the standard (Majorana) fermion production after inflation. Comparison betwee...
hep-ph/0007195
Liubomir Borissov
L. Borissov, J. Conrad, M. Shaevitz
Searching for the Lightest Neutralino at Fixed Target Experiments
4 pages, 6 figs, phenomenological study
null
null
null
hep-ph
null
Most ongoing supersymmetry searches have concentrated on the high-energy frontier. High-intensity fixed target beamlines, however, offer an opportunity to search for supersymmetric particles with long lifetimes and low cross-sections in regions complementary to the ones accessible to collider experiments. In this pap...
[ { "created": "Tue, 18 Jul 2000 21:29:07 GMT", "version": "v1" }, { "created": "Wed, 19 Jul 2000 16:23:06 GMT", "version": "v2" }, { "created": "Mon, 28 Aug 2000 20:22:41 GMT", "version": "v3" }, { "created": "Thu, 7 Sep 2000 06:34:15 GMT", "version": "v4" }, { "cr...
2009-09-25
[ [ "Borissov", "L.", "" ], [ "Conrad", "J.", "" ], [ "Shaevitz", "M.", "" ] ]
Most ongoing supersymmetry searches have concentrated on the high-energy frontier. High-intensity fixed target beamlines, however, offer an opportunity to search for supersymmetric particles with long lifetimes and low cross-sections in regions complementary to the ones accessible to collider experiments. In this paper...
hep-ph/9610308
Claus Grupen
Claus Grupen (Siegen University)
Multiparticle Aspects of e+e- Interactions at an Energy of 133 GeV at LEP
12 pages, 11 figures, invited talk given at "XXVI International Symposium on Multiparticle Dynamics" held in Faro, Portugal, September 1996
null
null
null
hep-ph
null
Electron-positron annihilations at an average center-of-mass energy of 133 GeV from the four LEP-experiments are presented. This includes in particular the total cross-section and multiplicities, thrust, rapidity and transverse momentum distributions as well as inclusive particle spectra.
[ { "created": "Thu, 10 Oct 1996 08:58:50 GMT", "version": "v1" } ]
2007-05-23
[ [ "Grupen", "Claus", "", "Siegen University" ] ]
Electron-positron annihilations at an average center-of-mass energy of 133 GeV from the four LEP-experiments are presented. This includes in particular the total cross-section and multiplicities, thrust, rapidity and transverse momentum distributions as well as inclusive particle spectra.
1905.08402
Keming Shen
Keming Shen, Gergely G\'abor Barnaf\"oldi and Tam\'as S\'andor Bir\'o
Hadron Spectra Parameters within the Non-Extensive Approach
8 pages, 3 figures
Universe 2019, 5(5), 122
10.3390/universe5050122
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate how the non-extensive approach works in high-energy physics. Transverse momentum ($p_T$) spectra of several hadrons are fitted by various non-extensive momentum distributions and by the Boltzmann--Gibbs statistics.~It is shown that some non-extensive distributions can be transferred one into another.~W...
[ { "created": "Tue, 21 May 2019 01:50:58 GMT", "version": "v1" } ]
2019-05-23
[ [ "Shen", "Keming", "" ], [ "Barnaföldi", "Gergely Gábor", "" ], [ "Biró", "Tamás Sándor", "" ] ]
We investigate how the non-extensive approach works in high-energy physics. Transverse momentum ($p_T$) spectra of several hadrons are fitted by various non-extensive momentum distributions and by the Boltzmann--Gibbs statistics.~It is shown that some non-extensive distributions can be transferred one into another.~We ...
hep-ph/9808327
Florian Scheck
Gabriela Barenboim and Florian Scheck (Mainz University)
Only Three
10 pages, 2 Postscript figures (eps)
Phys.Lett. B440 (1998) 332
10.1016/S0370-2693(98)01115-0
MZ-TH/98-29
hep-ph
null
It is shown that it is possible to account for all experimental indications for neutrino oscillations with just three flavours. In particular we suggest that the atmospheric neutrino anomaly and the LSND result can be explained by the same mass difference and mixing. Possible implications and future tests of the resu...
[ { "created": "Fri, 14 Aug 1998 09:22:51 GMT", "version": "v1" } ]
2009-10-31
[ [ "Barenboim", "Gabriela", "", "Mainz University" ], [ "Scheck", "Florian", "", "Mainz University" ] ]
It is shown that it is possible to account for all experimental indications for neutrino oscillations with just three flavours. In particular we suggest that the atmospheric neutrino anomaly and the LSND result can be explained by the same mass difference and mixing. Possible implications and future tests of the result...
2404.16690
Yukari Yamauchi
Vincenzo Cirigliano, Srimoyee Sen, Yukari Yamauchi
Neutrino many-body flavor evolution: the full Hamiltonian
21 pages, 16 figures
null
null
INT-PUB-24-015
hep-ph nucl-th quant-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study neutrino flavor evolution in the quantum many-body approach using the full neutrino-neutrino Hamiltonian, including the usually neglected terms that mediate non-forward scattering processes. Working in the occupation number representation with plane waves as single-particle states, we explore the time evolut...
[ { "created": "Thu, 25 Apr 2024 15:50:16 GMT", "version": "v1" } ]
2024-04-26
[ [ "Cirigliano", "Vincenzo", "" ], [ "Sen", "Srimoyee", "" ], [ "Yamauchi", "Yukari", "" ] ]
We study neutrino flavor evolution in the quantum many-body approach using the full neutrino-neutrino Hamiltonian, including the usually neglected terms that mediate non-forward scattering processes. Working in the occupation number representation with plane waves as single-particle states, we explore the time evolutio...
2201.01791
Yizhuang Liu
Yizhuang Liu, Maciej A. Nowak, Ismail Zahed
Hyperons and $\Theta_s^+$ in Holographic QCD
12 pages, 0 figures
null
10.1103/PhysRevD.105.114021
null
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We revisit the holographic description of strange baryons in the context of the Sakai-Sugimoto construction, by considering the strange quark mass as heavy. Hyperons are described by a massive $(K,K^*)$ multiplet, bound to a light-flavor instanton in bulk, much in the spirit of the Callan-Klebanov construction. The m...
[ { "created": "Wed, 5 Jan 2022 19:12:44 GMT", "version": "v1" } ]
2022-06-29
[ [ "Liu", "Yizhuang", "" ], [ "Nowak", "Maciej A.", "" ], [ "Zahed", "Ismail", "" ] ]
We revisit the holographic description of strange baryons in the context of the Sakai-Sugimoto construction, by considering the strange quark mass as heavy. Hyperons are described by a massive $(K,K^*)$ multiplet, bound to a light-flavor instanton in bulk, much in the spirit of the Callan-Klebanov construction. The mod...
2401.05666
Pablo Roig
Pere Masjuan and Pablo Roig
Data-driven approximations to the Hadronic Light-by-Light scattering contribution to the muon (g-2)
5 pages + references. Accepted for publication in the proceedings of the HADRON 2023 Conference, Genova, Italy, 5-9 June 2023
null
null
null
hep-ph hep-ex hep-lat
http://creativecommons.org/licenses/by/4.0/
We review recent progress on the numerical determination of the Hadronic Light-by-Light contribution to the anomalous magnetic moment of the muon. We advocate for a slight increase of the White Paper number for its Standard Model prediction, to $(102\pm17)\times10^{-11}$, accounting for a revised contribution from ax...
[ { "created": "Thu, 11 Jan 2024 04:57:08 GMT", "version": "v1" } ]
2024-01-12
[ [ "Masjuan", "Pere", "" ], [ "Roig", "Pablo", "" ] ]
We review recent progress on the numerical determination of the Hadronic Light-by-Light contribution to the anomalous magnetic moment of the muon. We advocate for a slight increase of the White Paper number for its Standard Model prediction, to $(102\pm17)\times10^{-11}$, accounting for a revised contribution from axia...
1603.04126
Guilherme Gomes
G. Balieiro Gomes, M. M. Guzzo, P. C. de Holanda, R. L. N. Oliveira
Parameter Limits for Neutrino Oscillation with Decoherence in KamLAND
null
Phys. Rev. D 95, 113005 (2017)
10.1103/PhysRevD.95.113005
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the framework of quantum open systems we analyze data from KamLAND by using a model that considers neutrino oscillation in a three-family approximation with the inclusion of the decoherence effect. Using a $\chi^2$ test we find new limits for the decoherence parameter which we call $\gamma$, considering the most r...
[ { "created": "Mon, 14 Mar 2016 03:46:47 GMT", "version": "v1" }, { "created": "Fri, 15 Apr 2016 18:47:48 GMT", "version": "v2" }, { "created": "Sat, 1 Apr 2017 18:25:29 GMT", "version": "v3" } ]
2017-06-28
[ [ "Gomes", "G. Balieiro", "" ], [ "Guzzo", "M. M.", "" ], [ "de Holanda", "P. C.", "" ], [ "Oliveira", "R. L. N.", "" ] ]
In the framework of quantum open systems we analyze data from KamLAND by using a model that considers neutrino oscillation in a three-family approximation with the inclusion of the decoherence effect. Using a $\chi^2$ test we find new limits for the decoherence parameter which we call $\gamma$, considering the most rec...
1508.06083
C. J. A. P. Martins
S. M. Jo\~ao, C. J. A. P. Martins, I. S. A. B. Mota and P. M. T. Vianez
On the Stability of Fundamental Couplings in the Galaxy
7 pages, 1 figure
Physics Letters B 749 (2015) 389-392
10.1016/j.physletb.2015.08.018
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Astrophysical tests of the stability of Nature's fundamental couplings are a key probe of the standard paradigms in fundamental physics and cosmology. In this report we discuss updated constraints on the stability of the fine-structure constant $\alpha$ and the proton-to-electron mass ratio $\mu=m_p/m_e$ within the G...
[ { "created": "Tue, 25 Aug 2015 09:25:58 GMT", "version": "v1" } ]
2015-08-26
[ [ "João", "S. M.", "" ], [ "Martins", "C. J. A. P.", "" ], [ "Mota", "I. S. A. B.", "" ], [ "Vianez", "P. M. T.", "" ] ]
Astrophysical tests of the stability of Nature's fundamental couplings are a key probe of the standard paradigms in fundamental physics and cosmology. In this report we discuss updated constraints on the stability of the fine-structure constant $\alpha$ and the proton-to-electron mass ratio $\mu=m_p/m_e$ within the Gal...
1902.10411
Javier Fuentes-Mart\'in
Ling-Yun Dai, Javier Fuentes-Martin, Jorge Portoles
Scalar-involved three-point Green functions and their phenomenology
30 pages, 5 figures. v2: Typos in Eqs. (B.4) and (B.6) of the appendices in the published version are corrected
Phys. Rev. D 99, 114015 (2019)
10.1103/PhysRevD.99.114015
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyse within the framework of resonance chiral theory the $\langle SA_\mu A_\nu \rangle$ and $\langle SV_\mu V_\nu \rangle$ three-point Green functions, where $S$, $A_{\mu} $ and $V_{\mu}$ are short for scalar, axial-vector and vector $SU(3)$ hadronic currents. We construct the necessary Lagrangian such that the...
[ { "created": "Wed, 27 Feb 2019 09:40:54 GMT", "version": "v1" }, { "created": "Sun, 14 Mar 2021 19:27:40 GMT", "version": "v2" } ]
2021-03-16
[ [ "Dai", "Ling-Yun", "" ], [ "Fuentes-Martin", "Javier", "" ], [ "Portoles", "Jorge", "" ] ]
We analyse within the framework of resonance chiral theory the $\langle SA_\mu A_\nu \rangle$ and $\langle SV_\mu V_\nu \rangle$ three-point Green functions, where $S$, $A_{\mu} $ and $V_{\mu}$ are short for scalar, axial-vector and vector $SU(3)$ hadronic currents. We construct the necessary Lagrangian such that the G...
hep-ph/9608378
Brian Harris
B. W. Harris and J. F. Owens (Florida State University)
Photoproduction of jets at NLO
To appear in proceedings of the 1996 Meeting of the American Physical Society, Division of Particles and Fields (DPF 96), Minneapolis, Minnesota, 10-15 Aug 1996. 3 pages, Latex using sprocl.sty (included)
null
null
null
hep-ph
null
A new next-to-leading order Monte Carlo program for the calculation of fully differential jet cross sections in photoproduction is described. The contributions from both resolved and direct components are included. A comparison between the theoretical predictions and ZEUS data is presented.
[ { "created": "Tue, 20 Aug 1996 17:41:43 GMT", "version": "v1" } ]
2007-05-23
[ [ "Harris", "B. W.", "", "Florida State University" ], [ "Owens", "J. F.", "", "Florida State University" ] ]
A new next-to-leading order Monte Carlo program for the calculation of fully differential jet cross sections in photoproduction is described. The contributions from both resolved and direct components are included. A comparison between the theoretical predictions and ZEUS data is presented.
1401.5118
Zhenjun Xiao
Shan Cheng, Ying-Ying Fan and Zhen-Jun Xiao
The NLO twist-3 contribution to the pion electromagnetic form factors in $k_{T}$ factorization
26 pages, 10 ps figures and 2 Tables, minor corrections
Phys. Rev. D 89, 054015 (2014)
10.1103/PhysRevD.89.054015
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, by employing the $k_{T}$ factorization theorem, we calculate firstly the next-to-leading-order (NLO) twist-3 contributions to the pion electromagnetic form factors in the $\pi\gamma^* \to \pi$ process. From the analytical and numerical calculations we find the following points: (a) For the leading orde...
[ { "created": "Mon, 20 Jan 2014 23:00:50 GMT", "version": "v1" } ]
2014-03-26
[ [ "Cheng", "Shan", "" ], [ "Fan", "Ying-Ying", "" ], [ "Xiao", "Zhen-Jun", "" ] ]
In this paper, by employing the $k_{T}$ factorization theorem, we calculate firstly the next-to-leading-order (NLO) twist-3 contributions to the pion electromagnetic form factors in the $\pi\gamma^* \to \pi$ process. From the analytical and numerical calculations we find the following points: (a) For the leading order ...
1707.00866
Tommi Markkanen
Tommi Markkanen, Sami Nurmi and Arttu Rajantie
Do metric fluctuations affect the Higgs dynamics during inflation?
v1: 13 pages. v2: some improvements, additional references, accepted for publication by JCAP
null
10.1088/1475-7516/2017/12/026
KCL-PH-TH/2017-32, IMPERIAL/TP/2017/TM/02
hep-ph astro-ph.CO gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show that the dynamics of the Higgs field during inflation is not affected by metric fluctuations if the Higgs is an energetically subdominant light spectator. For Standard Model parameters we find that couplings between Higgs and metric fluctuations are suppressed by $\mathcal{O}(10^{-7})$. They are negligible co...
[ { "created": "Tue, 4 Jul 2017 09:10:13 GMT", "version": "v1" }, { "created": "Mon, 27 Nov 2017 14:17:49 GMT", "version": "v2" } ]
2017-12-27
[ [ "Markkanen", "Tommi", "" ], [ "Nurmi", "Sami", "" ], [ "Rajantie", "Arttu", "" ] ]
We show that the dynamics of the Higgs field during inflation is not affected by metric fluctuations if the Higgs is an energetically subdominant light spectator. For Standard Model parameters we find that couplings between Higgs and metric fluctuations are suppressed by $\mathcal{O}(10^{-7})$. They are negligible comp...
2210.07007
Lois Flower
Lois Flower, Marek Schoenherr
Photon splitting corrections to soft-photon resummation
25 pages, 10 figures
J. High Energ. Phys. 2023, 238 (2023)
10.1007/JHEP03(2023)238
IPPP/22/69, MCnet-22-19
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we present an algorithm to add photon-splitting corrections to the Yennie-Frautschi-Suura-style soft-photon resummation available in the Sherpa Monte-Carlo event generator. Photon-splitting corrections enter at NNLO in QED and, as these effects are not incorporated in the standard QED FSR resummations, ...
[ { "created": "Thu, 13 Oct 2022 13:17:42 GMT", "version": "v1" }, { "created": "Mon, 20 Mar 2023 13:44:35 GMT", "version": "v2" } ]
2023-03-31
[ [ "Flower", "Lois", "" ], [ "Schoenherr", "Marek", "" ] ]
In this paper we present an algorithm to add photon-splitting corrections to the Yennie-Frautschi-Suura-style soft-photon resummation available in the Sherpa Monte-Carlo event generator. Photon-splitting corrections enter at NNLO in QED and, as these effects are not incorporated in the standard QED FSR resummations, th...
hep-ph/0605240
Dimitri Bourilkov
D Bourilkov, R C Group, M R Whalley
LHAPDF: PDF Use from the Tevatron to the LHC
8 pages, 2 figures, 2 tables; prepared for the TeV4LHC workshop; v2 - reference added
null
null
null
hep-ph
null
Parton Density Functions (PDFs) and their uncertainties are extremely important topics for both the Tevatron and the LHC. Experiments at the Tevatron can enhance this knowledge not only by constraining the PDF fits, but also by developing and refining the available PDF tools through feed-back from the experiments tha...
[ { "created": "Mon, 22 May 2006 20:03:21 GMT", "version": "v1" }, { "created": "Fri, 26 May 2006 18:49:09 GMT", "version": "v2" } ]
2007-05-23
[ [ "Bourilkov", "D", "" ], [ "Group", "R C", "" ], [ "Whalley", "M R", "" ] ]
Parton Density Functions (PDFs) and their uncertainties are extremely important topics for both the Tevatron and the LHC. Experiments at the Tevatron can enhance this knowledge not only by constraining the PDF fits, but also by developing and refining the available PDF tools through feed-back from the experiments that ...
hep-ph/0609182
Sandhya Choubey
Sandhya Choubey
What we can learn from atmospheric neutrinos
7 pages, to appear in proceedings of Neutrino 2006 Conference, Santa Fe, New Mexico, June 13-19, 2006
null
null
null
hep-ph hep-ex
null
Physics potential of future measurements of atmospheric neutrinos is explored. Observation of $\Delta m^2_{21}$ driven sub-dominant effects and $\theta_{13}$ driven large matter effects in atmospheric neutrinos can be used to study the deviation of $\theta_{23}$ from maximality and its octant. Neutrino mass hierarchy...
[ { "created": "Tue, 19 Sep 2006 03:54:20 GMT", "version": "v1" } ]
2007-05-23
[ [ "Choubey", "Sandhya", "" ] ]
Physics potential of future measurements of atmospheric neutrinos is explored. Observation of $\Delta m^2_{21}$ driven sub-dominant effects and $\theta_{13}$ driven large matter effects in atmospheric neutrinos can be used to study the deviation of $\theta_{23}$ from maximality and its octant. Neutrino mass hierarchy c...
hep-ph/0608158
Fulvio Piccinini
V. Del Duca, G. Kl\"amke, M.L. Mangano, M. Moretti, F. Piccinini, R. Pittau, A.D. Polosa and D. Zeppenfeld
Monte Carlo studies of the jet activity in Higgs + 2 jet events
12 pages, 10 figures. Version to appear on JHEP. Figs. 5-8 replaced with colour versions
JHEP0610:016,2006
10.1088/1126-6708/2006/10/016
FNT/T 2006/07, DFTT 14/2006, KA-TP-06-2006
hep-ph
null
Tree-level studies have shown in the past that kinematical correlations between the two jets in Higgs+2-jet events are direct probes of the Higgs couplings, e.g. of their CP nature. In this paper we explore the impact of higher-order corrections on the azimuthal angle correlation of the two leading jets and on the ra...
[ { "created": "Mon, 14 Aug 2006 17:28:01 GMT", "version": "v1" }, { "created": "Fri, 8 Sep 2006 19:49:31 GMT", "version": "v2" } ]
2009-11-11
[ [ "Del Duca", "V.", "" ], [ "Klämke", "G.", "" ], [ "Mangano", "M. L.", "" ], [ "Moretti", "M.", "" ], [ "Piccinini", "F.", "" ], [ "Pittau", "R.", "" ], [ "Polosa", "A. D.", "" ], [ "Zeppenfeld", ...
Tree-level studies have shown in the past that kinematical correlations between the two jets in Higgs+2-jet events are direct probes of the Higgs couplings, e.g. of their CP nature. In this paper we explore the impact of higher-order corrections on the azimuthal angle correlation of the two leading jets and on the rapi...
hep-ph/9610299
null
S. Dawson (BNL), A. Likhoded (IITAP), G. Valencia (ISU), and O. Yushchenko (IHEP)
Probing Quartic Couplings Through Three Gauge Boson Production at an $e^+e^-$ Linear Collider
To appear in the Proceedings of the 1996 DPF/DPB Summer Study on New Directions for High Energy Physics, Snowmass, CO, June 25-July 12, 1996; 4 pg, uses LATEX2e with epsfig and snow2e.cls
null
null
BNL-HET-SD-7
hep-ph
null
We explore the capability of a 500 or 1000 GeV $e^+e^-$ linear collider to measure anomalous quartic gauge boson couplings. In the framework of a non-linear effective Lagrangian with a custodial $SU)2)$ symmetry, there are only two next-to-leading order operators which contribute to quartic, but not to two- and three...
[ { "created": "Wed, 9 Oct 1996 15:24:14 GMT", "version": "v1" } ]
2007-05-23
[ [ "Dawson", "S.", "", "BNL" ], [ "Likhoded", "A.", "", "IITAP" ], [ "Valencia", "G.", "", "ISU" ], [ "Yushchenko", "O.", "", "IHEP" ] ]
We explore the capability of a 500 or 1000 GeV $e^+e^-$ linear collider to measure anomalous quartic gauge boson couplings. In the framework of a non-linear effective Lagrangian with a custodial $SU)2)$ symmetry, there are only two next-to-leading order operators which contribute to quartic, but not to two- and three- ...