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1310.1082
Ulrich Haisch
Rhorry Gauld, Florian Goertz and Ulrich Haisch
An explicit Z'-boson explanation of the B->K*mu+mu- anomaly
20 pages, 5 figures; v2: Eqs. (9.2), (9.4) and (9.5) corrected, typos fixed and references added; matches version published in JHEP
null
10.1007/JHEP01(2014)069
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A global fit to the recent B->K*mu+mu- data shows indications for a large new-physics contribution to the Wilson coefficient of the semi-leptonic vector operator. In this article we consider a simple Z'-boson model of 3-3-1 type that can accommodate such an effect without violating any other constraint from quark-fla...
[ { "created": "Thu, 3 Oct 2013 20:00:01 GMT", "version": "v1" }, { "created": "Tue, 14 Jan 2014 08:03:20 GMT", "version": "v2" } ]
2015-06-17
[ [ "Gauld", "Rhorry", "" ], [ "Goertz", "Florian", "" ], [ "Haisch", "Ulrich", "" ] ]
A global fit to the recent B->K*mu+mu- data shows indications for a large new-physics contribution to the Wilson coefficient of the semi-leptonic vector operator. In this article we consider a simple Z'-boson model of 3-3-1 type that can accommodate such an effect without violating any other constraint from quark-flavo...
1108.2442
Xing-Gang Wu
Xian-You Wang and Xing-Gang Wu
A Trick to Improve the Efficiency of Generating Unweighted $B_c$ Events from BCVEGPY
4 pages, 2 figures. To be published in Computer Physics Communications
Comput.Phys.Commun. 183, 442-445 (2012)
10.1016/j.cpc.2011.08.024
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the present paper, we provide an addendum to improve the efficiency of generating unweighted events within PYTHIA environment for the generator BCVEGPY2.1 [C.H. Chang, J.X. Wang and X.G. Wu, Comput.Phys.Commun.{\bf 174}, 241(2006)]. This trick is helpful for experimental simulation. Moreover, the BCVEGPY output ha...
[ { "created": "Thu, 11 Aug 2011 16:13:13 GMT", "version": "v1" } ]
2011-11-18
[ [ "Wang", "Xian-You", "" ], [ "Wu", "Xing-Gang", "" ] ]
In the present paper, we provide an addendum to improve the efficiency of generating unweighted events within PYTHIA environment for the generator BCVEGPY2.1 [C.H. Chang, J.X. Wang and X.G. Wu, Comput.Phys.Commun.{\bf 174}, 241(2006)]. This trick is helpful for experimental simulation. Moreover, the BCVEGPY output has ...
1910.09981
Zhi-Gang Wang
Zhi-Gang Wang
Two-particle contributions and nonlocal effects in the QCD sum rules for the axialvector tetraquark candidate $Z_c(3900)$
23 pages, 24 figures
Int. J. Mod. Phys. A35 (2020) 2050138
10.1142/S0217751X20501389
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this article, we study the $Z_c(3900)$ with the QCD sum rules in details by including the two-particle scattering state contributions and nonlocal effects between the diquark and antidiquark constituents. The two-particle scattering state contributions cannot saturate the QCD sum rules at the hadron side, the cont...
[ { "created": "Tue, 22 Oct 2019 13:49:27 GMT", "version": "v1" }, { "created": "Wed, 25 Dec 2019 01:45:28 GMT", "version": "v2" }, { "created": "Sat, 22 Feb 2020 07:48:22 GMT", "version": "v3" }, { "created": "Tue, 16 Jun 2020 13:47:45 GMT", "version": "v4" }, { "c...
2020-09-03
[ [ "Wang", "Zhi-Gang", "" ] ]
In this article, we study the $Z_c(3900)$ with the QCD sum rules in details by including the two-particle scattering state contributions and nonlocal effects between the diquark and antidiquark constituents. The two-particle scattering state contributions cannot saturate the QCD sum rules at the hadron side, the contri...
0910.2435
Albert Villanova del Moral
M. Hirsch, T. Kernreiter, J. C. Romao, and Albert Villanova del Moral
Minimal Supersymmetric Inverse Seesaw: Neutrino masses, lepton flavour violation and LHC phenomenology
26 pages, 4 figures; added explanatory comments, final version for publication
JHEP 1001:103,2010
10.1007/JHEP01(2010)103
IFIC/09-48, CFTP/09-033
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study neutrino masses in the framework of the supersymmetric inverse seesaw model. Different from the non-supersymmetric version a minimal realization with just one pair of singlets is sufficient to explain all neutrino data. We compute the neutrino mass matrix up to 1-loop order and show how neutrino data can be ...
[ { "created": "Tue, 13 Oct 2009 17:26:49 GMT", "version": "v1" }, { "created": "Mon, 8 Feb 2010 13:23:44 GMT", "version": "v2" } ]
2010-02-08
[ [ "Hirsch", "M.", "" ], [ "Kernreiter", "T.", "" ], [ "Romao", "J. C.", "" ], [ "del Moral", "Albert Villanova", "" ] ]
We study neutrino masses in the framework of the supersymmetric inverse seesaw model. Different from the non-supersymmetric version a minimal realization with just one pair of singlets is sufficient to explain all neutrino data. We compute the neutrino mass matrix up to 1-loop order and show how neutrino data can be de...
2108.03828
Claude Duhr
Claude Duhr, Vladimir A. Smirnov, Lorenzo Tancredi
Analytic results for two-loop planar master integrals for Bhabha scattering
28 pages, 3 figures
null
10.1007/JHEP09(2021)120
BONN-TH-2021-06, OUTP-21-19P
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analytically evaluate the master integrals for the second type of planar contributions to the massive two-loop Bhabha scattering in QED using differential equa- tions with canonical bases. We obtain results in terms of multiple polylogarithms for all the master integrals but one, for which we derive a compact resu...
[ { "created": "Mon, 9 Aug 2021 06:21:44 GMT", "version": "v1" } ]
2021-10-04
[ [ "Duhr", "Claude", "" ], [ "Smirnov", "Vladimir A.", "" ], [ "Tancredi", "Lorenzo", "" ] ]
We analytically evaluate the master integrals for the second type of planar contributions to the massive two-loop Bhabha scattering in QED using differential equa- tions with canonical bases. We obtain results in terms of multiple polylogarithms for all the master integrals but one, for which we derive a compact result...
hep-ph/9705301
null
J.R. Pelaez (Dept. Fisica Teorica, Univ. Complutense. Madrid. Spain)
Strong WW scattering and resonances at LHC
5 pages, Latex, uses epsf, one eps figure. Contribution to the 32nd Rencontres de Moriond ``Electroweak Interactions and Unified Theories''
null
null
FT/UCM-3/97
hep-ph
null
The low energy dynamics of the general strongly interacting symmetry breaking sector can be easily described using effective chiral Lagrangians. Indeed, the enhancement in WW scattering at LHC, that would imply the existence of such an strong interaction, can be described with just two chiral parameters. These techni...
[ { "created": "Tue, 13 May 1997 11:49:38 GMT", "version": "v1" } ]
2007-05-23
[ [ "Pelaez", "J. R.", "", "Dept. Fisica Teorica, Univ. Complutense. Madrid. Spain" ] ]
The low energy dynamics of the general strongly interacting symmetry breaking sector can be easily described using effective chiral Lagrangians. Indeed, the enhancement in WW scattering at LHC, that would imply the existence of such an strong interaction, can be described with just two chiral parameters. These techniqu...
0805.3993
Zvi Bern
Z. Bern, J. J. M. Carrasco and H. Johansson
New Relations for Gauge-Theory Amplitudes
40 pages, 7 figures, RevTex, v2 minor corrections
Phys.Rev.D78:085011,2008
10.1103/PhysRevD.78.085011
UCLA/07/TEP/15
hep-ph gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present an identity satisfied by the kinematic factors of diagrams describing the tree amplitudes of massless gauge theories. This identity is a kinematic analog of the Jacobi identity for color factors. Using this we find new relations between color-ordered partial amplitudes. We discuss applications to multi-loo...
[ { "created": "Mon, 26 May 2008 18:56:06 GMT", "version": "v1" }, { "created": "Fri, 10 Oct 2008 23:08:40 GMT", "version": "v2" } ]
2008-11-26
[ [ "Bern", "Z.", "" ], [ "Carrasco", "J. J. M.", "" ], [ "Johansson", "H.", "" ] ]
We present an identity satisfied by the kinematic factors of diagrams describing the tree amplitudes of massless gauge theories. This identity is a kinematic analog of the Jacobi identity for color factors. Using this we find new relations between color-ordered partial amplitudes. We discuss applications to multi-loop ...
hep-ph/0412127
Hee-Jung Lee
Hee-Jung Lee, N.I. Kochelev, and V. Vento
Triquark correlations and pentaquarks in a QCD sum rule approach
11 pages, 9 figures, corrected typos, reference added, introduction and conclusions modified slightly
Phys.Lett. B610 (2005) 50-60
10.1016/j.physletb.2005.01.081
FTUV-04-1209, IFIC-04-70
hep-ph hep-ex nucl-th
null
The role of quark correlations in the description of hadron dynamics in many domains of physics, from low energy dynamics to very hot(dense) systems, is being appreciated. Strong correlations of two quarks (diquark) have been widely investigated in this respect. Recently, we have proposed a dynamical scheme to descri...
[ { "created": "Thu, 9 Dec 2004 15:08:58 GMT", "version": "v1" }, { "created": "Fri, 10 Dec 2004 14:20:36 GMT", "version": "v2" }, { "created": "Thu, 16 Dec 2004 16:37:06 GMT", "version": "v3" }, { "created": "Wed, 26 Jan 2005 09:11:38 GMT", "version": "v4" } ]
2009-11-10
[ [ "Lee", "Hee-Jung", "" ], [ "Kochelev", "N. I.", "" ], [ "Vento", "V.", "" ] ]
The role of quark correlations in the description of hadron dynamics in many domains of physics, from low energy dynamics to very hot(dense) systems, is being appreciated. Strong correlations of two quarks (diquark) have been widely investigated in this respect. Recently, we have proposed a dynamical scheme to describe...
hep-ph/0407056
Aleksey I. Alekseev
A.I. Alekseev, B.A. Arbuzov
Beta-Function in QCD and Gluon Condensate
LaTeX, 10 pages, 2 figures, added reference, not great elucidation after eq.(3) and in abstract
null
null
null
hep-ph
null
Under assumption of singular behavior of alpha_s(q^2) at q^2 sim 0 and of large q^2 behavior, corresponding to the perturbation theory up to four loops, a procedure is considered of matching the beta-function at a boundary of perturbative and non-perturbative regions. The contribution of the non-perturbative region t...
[ { "created": "Mon, 5 Jul 2004 15:42:33 GMT", "version": "v1" }, { "created": "Fri, 27 Aug 2004 09:36:31 GMT", "version": "v2" } ]
2007-05-23
[ [ "Alekseev", "A. I.", "" ], [ "Arbuzov", "B. A.", "" ] ]
Under assumption of singular behavior of alpha_s(q^2) at q^2 sim 0 and of large q^2 behavior, corresponding to the perturbation theory up to four loops, a procedure is considered of matching the beta-function at a boundary of perturbative and non-perturbative regions. The contribution of the non-perturbative region to ...
0909.3196
Krzysztof Rolbiecki
Krzysztof Rolbiecki, Jamie Tattersall and Gudrid Moortgat-Pick
Towards Measuring the Stop Mixing Angle at the LHC
30 pages, 11 figures, version to appear in EPJC
Eur.Phys.J.C71:1517,2011
10.1140/epjc/s10052-010-1517-x
IPPP-09-55, DCPT-09-110
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We address the question of how to determine the stop mixing angle and its CP-violating phase at the LHC. As an observable we discuss ratios of branching ratios for different decay modes of the light stop ~t_1 to charginos and neutralinos. These observables can have a very strong dependence on the parameters of the st...
[ { "created": "Thu, 17 Sep 2009 12:04:11 GMT", "version": "v1" }, { "created": "Thu, 6 Jan 2011 13:17:54 GMT", "version": "v2" } ]
2015-03-13
[ [ "Rolbiecki", "Krzysztof", "" ], [ "Tattersall", "Jamie", "" ], [ "Moortgat-Pick", "Gudrid", "" ] ]
We address the question of how to determine the stop mixing angle and its CP-violating phase at the LHC. As an observable we discuss ratios of branching ratios for different decay modes of the light stop ~t_1 to charginos and neutralinos. These observables can have a very strong dependence on the parameters of the stop...
1601.00602
Karim Ghorbani
Karim Ghorbani (Arak U.) and Parsa Hossein Ghorbani (IPM, Tehran)
The LHC upper bounds for $pp \to \text{diboson}$, $t\bar t$ cross section on fermionic dark matter
14 pages, text modified by adding a computation on pp into dibosons and tt, published version
null
10.1142/S0217751X17501317
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The ATLAS report in August 2016 provided an upper limit for the $pp\to$ diboson and $t\bar t$ cross sections. We consider a pseudoscalar-mediated fermionic dark matter together with gluon and photon effective operators interacting with the pseudoscalar. Choosing the resonance mass being $m_\rho=200, 750$ GeV and $2$ ...
[ { "created": "Mon, 4 Jan 2016 18:38:27 GMT", "version": "v1" }, { "created": "Thu, 28 Apr 2016 06:04:00 GMT", "version": "v2" }, { "created": "Sat, 29 Jul 2017 16:19:17 GMT", "version": "v3" } ]
2017-08-01
[ [ "Ghorbani", "Karim", "", "Arak U." ], [ "Ghorbani", "Parsa Hossein", "", "IPM, Tehran" ] ]
The ATLAS report in August 2016 provided an upper limit for the $pp\to$ diboson and $t\bar t$ cross sections. We consider a pseudoscalar-mediated fermionic dark matter together with gluon and photon effective operators interacting with the pseudoscalar. Choosing the resonance mass being $m_\rho=200, 750$ GeV and $2$ Te...
0901.0283
Itay Yavin
Matthew Baumgart, Clifford Cheung, Joshua T. Ruderman, Lian-Tao Wang, and Itay Yavin
Non-Abelian Dark Sectors and Their Collider Signatures
44 pages, 25 figures, version published in JHEP
JHEP 0904:014,2009
10.1088/1126-6708/2009/04/014
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivated by the recent proliferation of observed astrophysical anomalies, Arkani-Hamed et al. have proposed a model in which dark matter is charged under a non-abelian "dark" gauge symmetry that is broken at ~ 1 GeV. In this paper, we present a survey of concrete models realizing such a scenario, followed by a large...
[ { "created": "Mon, 5 Jan 2009 19:51:25 GMT", "version": "v1" }, { "created": "Fri, 3 Apr 2009 12:11:45 GMT", "version": "v2" } ]
2009-04-17
[ [ "Baumgart", "Matthew", "" ], [ "Cheung", "Clifford", "" ], [ "Ruderman", "Joshua T.", "" ], [ "Wang", "Lian-Tao", "" ], [ "Yavin", "Itay", "" ] ]
Motivated by the recent proliferation of observed astrophysical anomalies, Arkani-Hamed et al. have proposed a model in which dark matter is charged under a non-abelian "dark" gauge symmetry that is broken at ~ 1 GeV. In this paper, we present a survey of concrete models realizing such a scenario, followed by a largely...
hep-ph/0310016
Stefano Forte
Guido Altarelli, Richard D. Ball, Stefano Forte
An Improved Splitting Function for Small x Evolution
5 pages, 2 figures, presented by G.A.at DIS2003
null
null
CERN-TH/2003-238, Edinburgh 2003/18, IFUM-774/FT
hep-ph
null
We summarize our recent result for a splitting function for small x evolution which includes resummed small x logarithms deduced from the leading order BFKL equation with the inclusion of running coupling effects. We compare this improved splitting function with alternative approaches.
[ { "created": "Wed, 1 Oct 2003 13:11:38 GMT", "version": "v1" } ]
2007-05-23
[ [ "Altarelli", "Guido", "" ], [ "Ball", "Richard D.", "" ], [ "Forte", "Stefano", "" ] ]
We summarize our recent result for a splitting function for small x evolution which includes resummed small x logarithms deduced from the leading order BFKL equation with the inclusion of running coupling effects. We compare this improved splitting function with alternative approaches.
hep-ph/0601052
Joseph Schechter
Deirdre Black, Masayasu Harada and Joseph Schechter
Chiral approach to phi radiative decays
26 pages, 10 figures, dedicated to celebration of sixtieth birthday of Rafael Sorkin
Phys.Rev. D73 (2006) 054017
10.1103/PhysRevD.73.054017
DPNU-05-19, SU-4252-820
hep-ph
null
The radiative decays of the phi meson are known to be a good source of information about the a0(980) and f0(980) scalar mesons. We discuss these decays starting from a non-linear model Lagrangian which maintains the (broken) chiral symmetry for the pseudoscalar (P), scalar (S) and vector (V) nonets involved. The char...
[ { "created": "Fri, 6 Jan 2006 19:06:28 GMT", "version": "v1" } ]
2009-11-11
[ [ "Black", "Deirdre", "" ], [ "Harada", "Masayasu", "" ], [ "Schechter", "Joseph", "" ] ]
The radiative decays of the phi meson are known to be a good source of information about the a0(980) and f0(980) scalar mesons. We discuss these decays starting from a non-linear model Lagrangian which maintains the (broken) chiral symmetry for the pseudoscalar (P), scalar (S) and vector (V) nonets involved. The charac...
1105.5529
Dorota Sokolowska
Maria Krawczyk, Dorota Sokolowska
The Inert Doublet Model and evolution of the Universe
4 pages, 5 figures (eps), talk presented at 10th Hellenic School on Elementary Particle Physics and Gravity, Corfu 2010. Proceedings are to be published in Fortschritte der Physik
Fortschr. Phys. 59, No. 11 - 12, 1098 - 1102 (2011)
10.1002/prop.201100070
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Inert Doublet Model (IDM) is a minimal extension of the Standard Model with the second scalar doublet that may provide a Dark Matter candidate. In this paper we consider the different variants of the evolution of the Universe after inflation, that lead towards the Inert phase today.
[ { "created": "Fri, 27 May 2011 11:24:15 GMT", "version": "v1" } ]
2016-02-03
[ [ "Krawczyk", "Maria", "" ], [ "Sokolowska", "Dorota", "" ] ]
Inert Doublet Model (IDM) is a minimal extension of the Standard Model with the second scalar doublet that may provide a Dark Matter candidate. In this paper we consider the different variants of the evolution of the Universe after inflation, that lead towards the Inert phase today.
1203.3631
Ibragim Alikhanov
I. Alikhanov
Single vector leptoquark production at hadron colliders due to direct lepton-gluon interaction
26 pages, 14 figures. A new figure inserted. Text in the conclusions added. Accepted for publication in Phys. Lett. B
Phys.Lett.B717:425-429,2012
10.1016/j.physletb.2012.09.068
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The cross section of single vector leptoquark production in direct lepton-gluon interaction is calculated. In a model independent analysis an effective Lagrangian describing the most general $C$ and $P$ conserving coupling of the leptoquarks to gluons is considered. An analytical expression is derived for the cross s...
[ { "created": "Fri, 16 Mar 2012 08:22:12 GMT", "version": "v1" }, { "created": "Thu, 4 Oct 2012 07:55:10 GMT", "version": "v2" } ]
2012-10-17
[ [ "Alikhanov", "I.", "" ] ]
The cross section of single vector leptoquark production in direct lepton-gluon interaction is calculated. In a model independent analysis an effective Lagrangian describing the most general $C$ and $P$ conserving coupling of the leptoquarks to gluons is considered. An analytical expression is derived for the cross sec...
1305.3173
Fu-Sheng Yu
Fu-Sheng Yu, Emi Kou, Cai-Dian L\"u
Photon Polarization in the b->s gamma processes in the Left-Right Symmetric Model
30pages, 5 figures, published version; references added
JHEP12(2013)102
10.1007/JHEP12(2013)102
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The circular-polarization of the photon in the radiative B decays is dominantly left-handed in the Standard Model (SM), but the right-handed polarization may be enhanced in some new physics models with right-handed currents, such as the Left-Right Symmetric Model (LRSM). In this article, we investigate how large this...
[ { "created": "Tue, 14 May 2013 14:58:36 GMT", "version": "v1" }, { "created": "Fri, 3 Jan 2014 07:45:29 GMT", "version": "v2" } ]
2014-01-06
[ [ "Yu", "Fu-Sheng", "" ], [ "Kou", "Emi", "" ], [ "Lü", "Cai-Dian", "" ] ]
The circular-polarization of the photon in the radiative B decays is dominantly left-handed in the Standard Model (SM), but the right-handed polarization may be enhanced in some new physics models with right-handed currents, such as the Left-Right Symmetric Model (LRSM). In this article, we investigate how large this w...
hep-ph/9507201
null
Riotto Antonio
Are oscillons present during a first order electroweak phase transition?
13 pages, 2 figures available upon request
Phys.Lett.B365:64-71,1996
10.1016/0370-2693(95)01239-7
SISSA-AP/95-79 preprint
hep-ph
null
It has been recently argued that localized, unstable, but extremely long-lived configurations, called oscillons, could affect the dynamics of a first order electroweak phase transition in an appreciable way. Treating the amplitude and the size of subcritical bubbles as statistical degrees of freedom, we show that the...
[ { "created": "Mon, 3 Jul 1995 10:08:23 GMT", "version": "v1" } ]
2010-11-19
[ [ "Antonio", "Riotto", "" ] ]
It has been recently argued that localized, unstable, but extremely long-lived configurations, called oscillons, could affect the dynamics of a first order electroweak phase transition in an appreciable way. Treating the amplitude and the size of subcritical bubbles as statistical degrees of freedom, we show that therm...
hep-ph/0112232
Ernest Ma
Ernest Ma (UC Riverside)
New U(1) Gauge Symmetry of Quarks and Leptons
minor word changes, to appear in MPLA
Mod.Phys.Lett. A17 (2002) 535-541
10.1142/S0217732302006679
UCRHEP-T327 (Dec 2001)
hep-ph
null
Instead of anchoring the seesaw mechanism with the conventional heavy right-handed neutrino singlet, a small Majorana neutrino mass may be obtained just as well with the addition of a heavy triplet of leptons per family to the minimal standard model of particle interactions. The resulting model is shown to have the r...
[ { "created": "Mon, 17 Dec 2001 20:21:04 GMT", "version": "v1" }, { "created": "Tue, 2 Apr 2002 16:23:59 GMT", "version": "v2" } ]
2009-11-07
[ [ "Ma", "Ernest", "", "UC Riverside" ] ]
Instead of anchoring the seesaw mechanism with the conventional heavy right-handed neutrino singlet, a small Majorana neutrino mass may be obtained just as well with the addition of a heavy triplet of leptons per family to the minimal standard model of particle interactions. The resulting model is shown to have the rem...
0705.2617
Zhang Xiao-Bing
Xiao-Bing Zhang
Note on color neutral solutions of the $K^0$ condensed color-flavor locked phase
null
null
null
null
hep-ph
null
In the presence of nonzero strange quark mass $m_s$, we investigate color neutrality in the $K^0$ condensed phase of color-flavor locked quark matter. By treating the $m_s$ effects on both kaon condensate and Fermi-surface phenomenon self-consistently, we develop a new treatment to evaluate color neutral solutions wi...
[ { "created": "Fri, 18 May 2007 00:19:41 GMT", "version": "v1" } ]
2017-03-07
[ [ "Zhang", "Xiao-Bing", "" ] ]
In the presence of nonzero strange quark mass $m_s$, we investigate color neutrality in the $K^0$ condensed phase of color-flavor locked quark matter. By treating the $m_s$ effects on both kaon condensate and Fermi-surface phenomenon self-consistently, we develop a new treatment to evaluate color neutral solutions with...
0807.3791
Mikhail Gorshteyn
M. Gorchtein and A.P. Szczepaniak
Low energy theorem for virtual Compton scattering and generalized sum rules of the nucleon
4 pages, 2 figures, revtex4
Phys.Rev.Lett.101:141601,2008
10.1103/PhysRevLett.101.141601
null
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We formulate the low energy theorem for virtual Compton scattering off a nucleon and examine its consequences for generalized nucleon polarizabilites. As a result of a new, model independent definition of the low energy limit for VVCS reaction, all generalized sum rules of the nucleon have continuous limit for real p...
[ { "created": "Thu, 24 Jul 2008 04:20:45 GMT", "version": "v1" } ]
2008-11-26
[ [ "Gorchtein", "M.", "" ], [ "Szczepaniak", "A. P.", "" ] ]
We formulate the low energy theorem for virtual Compton scattering off a nucleon and examine its consequences for generalized nucleon polarizabilites. As a result of a new, model independent definition of the low energy limit for VVCS reaction, all generalized sum rules of the nucleon have continuous limit for real pho...
1001.2553
Clark Downum
Frank Close, Clark Downum, Christopher E. Thomas
Novel Charmonium and Bottomonium Spectroscopies due to Deeply Bound Hadronic Molecules from Single Pion Exchange
14 pages, 5 figures and 5 tables
Phys.Rev.D81:074033,2010
10.1103/PhysRevD.81.074033
OUTP-10-01P, JLAB-THY-10-1119
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Pion exchange in S-wave between hadrons that are themselves in a relative S-wave is shown to shift energies by hundreds of MeV, leading to deeply bound quasi-molecular states. In the case of charmed mesons $D^*,D_1$ a spectroscopy arises consistent with enigmatic charmonium states observed above 4 GeV in $e^+e^-$ ann...
[ { "created": "Thu, 14 Jan 2010 20:40:19 GMT", "version": "v1" } ]
2010-05-12
[ [ "Close", "Frank", "" ], [ "Downum", "Clark", "" ], [ "Thomas", "Christopher E.", "" ] ]
Pion exchange in S-wave between hadrons that are themselves in a relative S-wave is shown to shift energies by hundreds of MeV, leading to deeply bound quasi-molecular states. In the case of charmed mesons $D^*,D_1$ a spectroscopy arises consistent with enigmatic charmonium states observed above 4 GeV in $e^+e^-$ annih...
1001.1938
Ciaran Williams
Ciaran Williams
Higgs + 2 jets: Compact Analytic Results
Talk given at RADCOR 2009 - 9th International Symposium on Radiative Corrections (Applications of Quantum Field Theory to Phenomenology) October 25 - 30 2009. 6 pages
PoS RADCOR2009:025,2010
null
IPPP/09/98
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This report describes the recent efforts to compute analytic formulae for the Next-to-Leading-Order (NLO) QCD corrections to Higgs plus two jet production at hadron colliders. In these calculations the Higgs boson couples to gluons via a top-quark loop which is integrated out to form an effective vertex. The amplitud...
[ { "created": "Tue, 12 Jan 2010 19:07:13 GMT", "version": "v1" } ]
2014-11-20
[ [ "Williams", "Ciaran", "" ] ]
This report describes the recent efforts to compute analytic formulae for the Next-to-Leading-Order (NLO) QCD corrections to Higgs plus two jet production at hadron colliders. In these calculations the Higgs boson couples to gluons via a top-quark loop which is integrated out to form an effective vertex. The amplitudes...
1907.12409
Hyun Min Lee
Hyun Min Lee
Lectures on Physics Beyond the Standard Model
61 pages, no figures, Lectures at 2019 IBS-CTPU Summer School on Cosmology and Particle Physics, 22-26 July, 2019, Daejeon, Korea, v2: references added, v3: typos corrected and improved discussion, v4: expanded discussion with four-form flux relaxation, Journal version
J. Korean Phys. Soc. 78, 985 (2021)
10.1007/s40042-021-00188-x
null
hep-ph
http://creativecommons.org/licenses/by-nc-sa/4.0/
We give a brief overview on the successes and theoretical problems of the Standard Model and discuss the basics of low-scale supersymmetry. We also address some of recent proposals for physics beyond the Standard Model and the connection to the production mechanisms for thermal dark matter.
[ { "created": "Mon, 29 Jul 2019 13:18:26 GMT", "version": "v1" }, { "created": "Tue, 30 Jul 2019 14:52:47 GMT", "version": "v2" }, { "created": "Tue, 10 Dec 2019 13:17:01 GMT", "version": "v3" }, { "created": "Wed, 7 Apr 2021 07:51:06 GMT", "version": "v4" } ]
2021-06-30
[ [ "Lee", "Hyun Min", "" ] ]
We give a brief overview on the successes and theoretical problems of the Standard Model and discuss the basics of low-scale supersymmetry. We also address some of recent proposals for physics beyond the Standard Model and the connection to the production mechanisms for thermal dark matter.
hep-ph/0208048
Marco Ciuchini
M. Ciuchini, E. Franco, G. Martinelli, M. Pierini, L. Silvestrini
Charming Penguins Saga
Invited talk at FPCP '02 given by M. Ciuchini, uses econfmacros.tex. Final version with minor changes to appear in the proceedings
null
null
null
hep-ph
null
We briefly recall the main formulae for computing the B -> K pi branching ratios within the "charming penguin" approach, present an updated fit to the data, and explain why we believe that, in general, these fits can hardly be used to extract gamma.
[ { "created": "Tue, 6 Aug 2002 09:44:25 GMT", "version": "v1" }, { "created": "Mon, 9 Sep 2002 10:23:15 GMT", "version": "v2" } ]
2007-05-23
[ [ "Ciuchini", "M.", "" ], [ "Franco", "E.", "" ], [ "Martinelli", "G.", "" ], [ "Pierini", "M.", "" ], [ "Silvestrini", "L.", "" ] ]
We briefly recall the main formulae for computing the B -> K pi branching ratios within the "charming penguin" approach, present an updated fit to the data, and explain why we believe that, in general, these fits can hardly be used to extract gamma.
1505.02677
Harri Niemi
H. Niemi, K. J. Eskola, R. Paatelainen
Event-by-event fluctuations in perturbative QCD + saturation + hydro model: pinning down QCD matter shear viscosity in ultrarelativistic heavy-ion collisions
32 pages, 23 figures
Phys. Rev. C 93, 024907 (2016)
10.1103/PhysRevC.93.024907
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We introduce an event-by-event perturbative-QCD + saturation + hydro ("EKRT") framework for ultrarelativistic heavy-ion collisions, where we compute the produced fluctuating QCD-matter energy densities from next-to-leading order perturbative QCD using a saturation conjecture to control soft particle production, and d...
[ { "created": "Mon, 11 May 2015 15:52:23 GMT", "version": "v1" } ]
2016-02-17
[ [ "Niemi", "H.", "" ], [ "Eskola", "K. J.", "" ], [ "Paatelainen", "R.", "" ] ]
We introduce an event-by-event perturbative-QCD + saturation + hydro ("EKRT") framework for ultrarelativistic heavy-ion collisions, where we compute the produced fluctuating QCD-matter energy densities from next-to-leading order perturbative QCD using a saturation conjecture to control soft particle production, and des...
1704.01757
Francesco Hautmann
F. Hautmann, H. Jung, A. Lelek, V. Radescu, R. Zlebcik
Soft-gluon resolution scale in QCD evolution equations
Latex, 8 pages, 4 figures
null
10.1016/j.physletb.2017.07.005
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
QCD evolution equations can be recast in terms of parton branching processes. We present a new numerical solution of the equations. We show that this parton-branching solution can be applied to analyze infrared contributions to evolution, order-by-order in the strong coupling $\alpha_s$, as a function of the soft-glu...
[ { "created": "Thu, 6 Apr 2017 09:32:53 GMT", "version": "v1" } ]
2017-08-23
[ [ "Hautmann", "F.", "" ], [ "Jung", "H.", "" ], [ "Lelek", "A.", "" ], [ "Radescu", "V.", "" ], [ "Zlebcik", "R.", "" ] ]
QCD evolution equations can be recast in terms of parton branching processes. We present a new numerical solution of the equations. We show that this parton-branching solution can be applied to analyze infrared contributions to evolution, order-by-order in the strong coupling $\alpha_s$, as a function of the soft-gluon...
1909.07429
T\'essio B. de Melo
Tessio B. de Melo, Farinaldo S. Queiroz, Yoxara Villamizar
Doubly Charged Scalar at the High-Luminosity and High-Energy LHC
7 pages, 7 figures, 1 table
null
10.1142/S0217751X19501574
IIPDM-2019
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Doubly charged scalars are common figures in several beyond the Standard Model studies, especially those related to neutrino masses. In this work, we estimate the High-Luminosity (HL-LHC) and High-Energy LHC (HE-LHC) sensitivity to doubly charged scalars assuming they decay promptly and exclusively into charged lepto...
[ { "created": "Mon, 16 Sep 2019 18:25:36 GMT", "version": "v1" } ]
2019-10-23
[ [ "de Melo", "Tessio B.", "" ], [ "Queiroz", "Farinaldo S.", "" ], [ "Villamizar", "Yoxara", "" ] ]
Doubly charged scalars are common figures in several beyond the Standard Model studies, especially those related to neutrino masses. In this work, we estimate the High-Luminosity (HL-LHC) and High-Energy LHC (HE-LHC) sensitivity to doubly charged scalars assuming they decay promptly and exclusively into charged leptons...
0801.2374
Laura Reina
Fernando Febres Cordero, Laura Reina, Doreen Wackeroth
NLO QCD corrections to W-b-bbar and Z-b-bbar production
6 pages, 6 eps figures, LaTeX, to appear in the proceedings of the "8th International Symposium on Radiative Corrections (RADCOR 2007)", Florence, Italy, October 1-5
PoS RADCOR2007:012,2007
null
null
hep-ph
null
We present NLO QCD results for W/Z gauge boson production with bottom quark pairs at the Tevatron including full bottom-quark mass effects. We study the impact of QCD corrections on both total cross-section and invariant mass distribution of the bottom-quark pair. Including NLO QCD corrections greatly reduces the dep...
[ { "created": "Tue, 15 Jan 2008 20:45:26 GMT", "version": "v1" } ]
2010-12-28
[ [ "Cordero", "Fernando Febres", "" ], [ "Reina", "Laura", "" ], [ "Wackeroth", "Doreen", "" ] ]
We present NLO QCD results for W/Z gauge boson production with bottom quark pairs at the Tevatron including full bottom-quark mass effects. We study the impact of QCD corrections on both total cross-section and invariant mass distribution of the bottom-quark pair. Including NLO QCD corrections greatly reduces the depen...
1909.08443
Johannes Erdmann
Maura Barros, Nuno Filipe Castro, Johannes Erdmann, Gregor Ge{\ss}ner, Kevin Kr\"oninger, Salvatore La Cagnina, Ana Peixoto
Study of interference effects in the search for flavour-changing neutral current interactions involving the top quark and a photon or a $Z$ boson at the LHC
8 pages, 3 figures, 2 tables
Eur. Phys. J. Plus 135 (2020) 339
10.1140/epjp/s13360-020-00346-3
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
Flavour-changing neutral-current interactions of the top quark can be searched for in top-quark pair production with one top quark decaying to an up-type quark and a neutral boson, and they can be searched for in the single production of a top quark in association with such a boson. Both processes interfere if an add...
[ { "created": "Wed, 18 Sep 2019 13:37:30 GMT", "version": "v1" }, { "created": "Tue, 24 Mar 2020 09:49:13 GMT", "version": "v2" } ]
2020-04-01
[ [ "Barros", "Maura", "" ], [ "Castro", "Nuno Filipe", "" ], [ "Erdmann", "Johannes", "" ], [ "Geßner", "Gregor", "" ], [ "Kröninger", "Kevin", "" ], [ "La Cagnina", "Salvatore", "" ], [ "Peixoto", "Ana", "" ...
Flavour-changing neutral-current interactions of the top quark can be searched for in top-quark pair production with one top quark decaying to an up-type quark and a neutral boson, and they can be searched for in the single production of a top quark in association with such a boson. Both processes interfere if an addit...
2112.11993
Krzysztof Jod{\l}owski
Krzysztof Jod{\l}owski, Leszek Roszkowski, Sebastian Trojanowski
Indirect detection of long-lived particles in a rich dark sector with a dark vector portal
19 pages, 11 figures, overview paragraph added in the introduction, accepted by PRD
null
null
CTPU-PTC-23-51
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Simplified models of light new physics provide a convenient benchmark for experimental searches for new physics signatures, including dark matter (DM). However, additional detection modes can arise in less simplified and more realistic scenarios where new degrees of freedom are invoked. In this study, we introduce a ...
[ { "created": "Wed, 22 Dec 2021 16:14:56 GMT", "version": "v1" }, { "created": "Thu, 26 Oct 2023 05:21:20 GMT", "version": "v2" }, { "created": "Tue, 5 Dec 2023 01:55:25 GMT", "version": "v3" } ]
2023-12-06
[ [ "Jodłowski", "Krzysztof", "" ], [ "Roszkowski", "Leszek", "" ], [ "Trojanowski", "Sebastian", "" ] ]
Simplified models of light new physics provide a convenient benchmark for experimental searches for new physics signatures, including dark matter (DM). However, additional detection modes can arise in less simplified and more realistic scenarios where new degrees of freedom are invoked. In this study, we introduce a no...
hep-ph/0412233
Koske Nishihara
Koske Nishihara
K{\" a}hler Anomaly Effect in Anomaly Mediation Framework
26 pages, 27 figures
null
null
OU-HET 508
hep-ph
null
We extend the anomaly mediation mechanism by including the effect due to K{\" a}hler anomaly. We give a general method analyzing the soft breaking terms in MSSM by introducing a set of parameters. One of the parameters describes the magnitude of the K{\" a}hler contribution as opposed to the ordinary super-Weyl contr...
[ { "created": "Thu, 16 Dec 2004 13:44:49 GMT", "version": "v1" }, { "created": "Fri, 25 Mar 2005 08:20:19 GMT", "version": "v2" } ]
2007-05-23
[ [ "Nishihara", "Koske", "" ] ]
We extend the anomaly mediation mechanism by including the effect due to K{\" a}hler anomaly. We give a general method analyzing the soft breaking terms in MSSM by introducing a set of parameters. One of the parameters describes the magnitude of the K{\" a}hler contribution as opposed to the ordinary super-Weyl contrib...
hep-ph/0311295
Jeonghyeon Song
Kingman Cheung (NCTS), C.S. Kim (Yonsei Univ.), and Jeonghyeon Song (Konkuk Univ.)
Probing the Radion-Higgs mixing at hadronic colliders
RevTeX style, 21 pages with 10 eps files
Phys.Rev. D69 (2004) 075011
10.1103/PhysRevD.69.075011
NSC-NCTS-031101, KIAS-P02085
hep-ph
null
In the Randall-Sundrum model, the radion-Higgs mixing is weakly suppressed by the effective electroweak scale. One of its novel features would be a sizable three-point vertex of KK graviton-Higgs-radion. We explored the potential of the Fermilab Tevatron and the CERN LHC in probing the radion-Higgs mixing via the ass...
[ { "created": "Mon, 24 Nov 2003 07:13:32 GMT", "version": "v1" } ]
2009-11-10
[ [ "Cheung", "Kingman", "", "NCTS" ], [ "Kim", "C. S.", "", "Yonsei Univ." ], [ "Song", "Jeonghyeon", "", "Konkuk Univ." ] ]
In the Randall-Sundrum model, the radion-Higgs mixing is weakly suppressed by the effective electroweak scale. One of its novel features would be a sizable three-point vertex of KK graviton-Higgs-radion. We explored the potential of the Fermilab Tevatron and the CERN LHC in probing the radion-Higgs mixing via the assoc...
0905.0168
Christopher Lee
Christopher Lee, Andrew Hornig, and Grigory Ovanesyan
Probing the Structure of Jets: Factorized and Resummed Angularity Distributions in SCET
8 pages, 2 figures. Contribution to the proceedings of EFT'09, International Workshop on Effective Field Theories: from the Pion to the Upsilon, 2-6 February 2009, Valencia (Spain)
null
null
UCB-PTH-09/13
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Using the framework of soft-collinear effective theory (SCET), we factorize and calculate $e^+e^-$ angularity distributions, including perturbative resummation and the incorporation of a universal model for the nonperturbative soft function. Angularities $\tau_a$ are a class of event shapes varying in their sensitivi...
[ { "created": "Mon, 4 May 2009 17:59:42 GMT", "version": "v1" } ]
2009-05-05
[ [ "Lee", "Christopher", "" ], [ "Hornig", "Andrew", "" ], [ "Ovanesyan", "Grigory", "" ] ]
Using the framework of soft-collinear effective theory (SCET), we factorize and calculate $e^+e^-$ angularity distributions, including perturbative resummation and the incorporation of a universal model for the nonperturbative soft function. Angularities $\tau_a$ are a class of event shapes varying in their sensitivity...
hep-ph/9807202
Tom Sizer
Andreas W. Schreiber, Tom Sizer and Anthony G. Williams
Dimensionally Regularized Study of Nonperturbative Quenched QED
9 pages including 4 .eps files comprising 2 figures; uses sprocl.sty. To appear in the proceedings of the Workshop on Methods in Nonperturbative Field Theory, Adelaide, Australia, February 1998
null
null
ADP-98-033/T306
hep-ph hep-th
null
We study the dimensionally regularized fermion propagator Dyson-Schwinger equation in quenched nonperturbative QED in an arbitrary covariant gauge using the Curtis-Pennington vertex and perform nonperturbative renormalization numerically. The nonperturbative fermion propagator is solved in D=4-2*epsilon < 4 dimension...
[ { "created": "Wed, 1 Jul 1998 06:00:09 GMT", "version": "v1" }, { "created": "Wed, 8 Jul 1998 01:23:01 GMT", "version": "v2" } ]
2007-05-23
[ [ "Schreiber", "Andreas W.", "" ], [ "Sizer", "Tom", "" ], [ "Williams", "Anthony G.", "" ] ]
We study the dimensionally regularized fermion propagator Dyson-Schwinger equation in quenched nonperturbative QED in an arbitrary covariant gauge using the Curtis-Pennington vertex and perform nonperturbative renormalization numerically. The nonperturbative fermion propagator is solved in D=4-2*epsilon < 4 dimensional...
hep-ph/9211252
null
S. Jadach, B.F.L. Ward and S.A. Yost
Exact Results on e+ e- --> e+ e- + 2 Photons at SLC/LEP Energies
16 pages(LaTeX), UTHEP-92-0601 (contains corrected figures)
Phys.Rev. D47 (1993) 2682-2689
10.1103/PhysRevD.47.2682
null
hep-ph
null
We use the spinor methods of the CALKUL collaboration, as realized by Xu, Zhang and Chang, to calculate the differential cross section for e+ e- --> e+ e- + 2 photons for c.m.s. energies in the SLC/LEP regime. An explicit complete formula for the respective cross section is obtained. The leading log approximation is ...
[ { "created": "Mon, 16 Nov 1992 16:20:38 GMT", "version": "v1" }, { "created": "Wed, 30 Mar 1994 21:30:09 GMT", "version": "v2" } ]
2009-10-22
[ [ "Jadach", "S.", "" ], [ "Ward", "B. F. L.", "" ], [ "Yost", "S. A.", "" ] ]
We use the spinor methods of the CALKUL collaboration, as realized by Xu, Zhang and Chang, to calculate the differential cross section for e+ e- --> e+ e- + 2 photons for c.m.s. energies in the SLC/LEP regime. An explicit complete formula for the respective cross section is obtained. The leading log approximation is us...
2209.07391
Manuel Toharia
Mariana Frank, Nima Pourtolami and Manuel Toharia
Additional Higgs bosons: Supersymmetry or warped extra dimensions?
7 pages, 2 figures, 3 tables
null
10.1016/j.physletb.2022.137547
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate and compare additional CP-even, CP-odd and charged scalar states appearing in two popular Beyond the Standard Model scenarios. We focus on the simplest possible Higgs sector within warped extra-dimensions and supersymmetry, with the aim to differentiate between them. In each case, we analyze the coupli...
[ { "created": "Thu, 15 Sep 2022 15:53:21 GMT", "version": "v1" } ]
2022-11-09
[ [ "Frank", "Mariana", "" ], [ "Pourtolami", "Nima", "" ], [ "Toharia", "Manuel", "" ] ]
We investigate and compare additional CP-even, CP-odd and charged scalar states appearing in two popular Beyond the Standard Model scenarios. We focus on the simplest possible Higgs sector within warped extra-dimensions and supersymmetry, with the aim to differentiate between them. In each case, we analyze the coupling...
hep-ph/9611405
Bhaskar Dutta
B. Dutta and S. Nandi
Texture of fermion mass matrices in partially unified theories
10 pages(Latex)
Phys.Rev. D59 (1999) 013013
10.1103/PhysRevD.59.013013
OITS-617, OSURN-318, UTEXAS-HEP-96-18, DOE-ER 40757-087
hep-ph
null
We investigate the texture of fermion mass matrices in theories with partial unification (for example $ SU(2)_L\times SU(2)_R\times SU(4)_c$) at a scale $\sim 10^{12}$ GeV. Starting with the low energy values of the masses and the mixing angles, we find only two viable textures with atmost four texture zeros. One of ...
[ { "created": "Sun, 24 Nov 1996 19:34:11 GMT", "version": "v1" } ]
2009-10-30
[ [ "Dutta", "B.", "" ], [ "Nandi", "S.", "" ] ]
We investigate the texture of fermion mass matrices in theories with partial unification (for example $ SU(2)_L\times SU(2)_R\times SU(4)_c$) at a scale $\sim 10^{12}$ GeV. Starting with the low energy values of the masses and the mixing angles, we find only two viable textures with atmost four texture zeros. One of th...
hep-ph/0509019
Axel Weber
A. Weber
Fine and hyperfine structure in different bound systems
36 pages, 2 figures
null
null
null
hep-ph hep-th nucl-th
null
We demonstrate that the generalized Gell-Mann-Low theorem permits for a systematic expansion around the nonrelativistic limit when applied to bound states in the Wick-Cutkosky model, Yukawa theory, and QED (in Coulomb gauge). We apply this expansion to obtain new results for the fine and hyperfine structure of bound ...
[ { "created": "Fri, 2 Sep 2005 17:49:25 GMT", "version": "v1" } ]
2007-05-23
[ [ "Weber", "A.", "" ] ]
We demonstrate that the generalized Gell-Mann-Low theorem permits for a systematic expansion around the nonrelativistic limit when applied to bound states in the Wick-Cutkosky model, Yukawa theory, and QED (in Coulomb gauge). We apply this expansion to obtain new results for the fine and hyperfine structure of bound st...
1612.07725
Alexandre Alves
Alexandre Alves
Stacking machine learning classifiers to identify Higgs bosons at the LHC
20 pages, 4 figures, 3 tables. Version published in the Journal of Instrumentation
null
10.1088/1748-0221/12/05/T05005
null
hep-ph cs.LG physics.data-an
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Machine learning (ML) algorithms have been employed in the problem of classifying signal and background events with high accuracy in particle physics. In this paper, we compare the performance of a widespread ML technique, namely, \emph{stacked generalization}, against the results of two state-of-art algorithms: (1) ...
[ { "created": "Wed, 21 Dec 2016 20:01:37 GMT", "version": "v1" }, { "created": "Tue, 7 Feb 2017 01:07:42 GMT", "version": "v2" }, { "created": "Tue, 30 May 2017 19:03:03 GMT", "version": "v3" } ]
2017-06-01
[ [ "Alves", "Alexandre", "" ] ]
Machine learning (ML) algorithms have been employed in the problem of classifying signal and background events with high accuracy in particle physics. In this paper, we compare the performance of a widespread ML technique, namely, \emph{stacked generalization}, against the results of two state-of-art algorithms: (1) a ...
0812.2564
Christoph Englert
C. Englert, B. Jager, D. Zeppenfeld
QCD Corrections to Vector-Boson Fusion Processes in Warped Higgsless Models
22 pages, 20 figures
JHEP 0903:060,2009
10.1088/1126-6708/2009/03/060
KA-TP-32-2008, SFB/CPP-08-103
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the signatures of a representative Higgsless model with ideal fermion delocalization in vector-boson fusion processes, focusing on the gold- and silver-plated decay modes of the gauge bosons at the CERN-Large Hadron Collider. For this purpose, we have developed a fully-flexible parton-level Monte-Carlo pro...
[ { "created": "Sat, 13 Dec 2008 17:10:53 GMT", "version": "v1" } ]
2009-03-27
[ [ "Englert", "C.", "" ], [ "Jager", "B.", "" ], [ "Zeppenfeld", "D.", "" ] ]
We discuss the signatures of a representative Higgsless model with ideal fermion delocalization in vector-boson fusion processes, focusing on the gold- and silver-plated decay modes of the gauge bosons at the CERN-Large Hadron Collider. For this purpose, we have developed a fully-flexible parton-level Monte-Carlo progr...
hep-ph/0002002
Raymond R. Volkas
Raymond R Volkas
Mirror Neutrinos and the Early Universe
7 pages, 2 embedded figures, Latex, uses ws-p8-50x6-00. Invited talk at COSMO99, to appear in the proceedings
null
10.1142/9789812792129_0054
null
hep-ph
null
I review the construction of the Exact Parity or Mirror Matter Model and explain how it solves the solar and atmospheric neutrino problems. The oscillation driven relic neutrino asymmetry amplification phenomenon is then used to demonstrate the consistency of the model with Big Bang Nucleosynthesis.
[ { "created": "Tue, 1 Feb 2000 05:18:48 GMT", "version": "v1" } ]
2016-11-03
[ [ "Volkas", "Raymond R", "" ] ]
I review the construction of the Exact Parity or Mirror Matter Model and explain how it solves the solar and atmospheric neutrino problems. The oscillation driven relic neutrino asymmetry amplification phenomenon is then used to demonstrate the consistency of the model with Big Bang Nucleosynthesis.
1612.00032
Srimoyee Sen
David B. Kaplan, Sanjay Reddy and Srimoyee Sen
Energy Conservation and the Chiral Magnetic Effect
We have corrected a sign error. But the main conclusions of the paper remain unchanged
Phys. Rev. D 96, 016008 (2017)
10.1103/PhysRevD.96.016008
null
hep-ph astro-ph.HE nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze the chiral magnetic effect in a homogeneous neutral plasma from the point of view of energy conservation, and construct an effective potential for the growth of maximally helical perturbations of the electromagnetic field. We show that a negative curvature at the origin of the potential, indicating instabi...
[ { "created": "Wed, 30 Nov 2016 21:11:34 GMT", "version": "v1" }, { "created": "Mon, 29 May 2017 16:11:38 GMT", "version": "v2" } ]
2017-07-19
[ [ "Kaplan", "David B.", "" ], [ "Reddy", "Sanjay", "" ], [ "Sen", "Srimoyee", "" ] ]
We analyze the chiral magnetic effect in a homogeneous neutral plasma from the point of view of energy conservation, and construct an effective potential for the growth of maximally helical perturbations of the electromagnetic field. We show that a negative curvature at the origin of the potential, indicating instabili...
hep-ph/9710490
Lyndon Alvero
L. Alvero, J. C. Collins, M. Strikman and J. J. Whitmore (Penn. State University, U.S.A.)
Probing small-x parton densities in proton- proton (-nucleus) collisions in the very forward direction
14 pages, LaTeX, 12 figures, uses revtex.sty
Phys. Rev. D 57, 4063 (1998)
10.1103/PhysRevD.57.4063
PSU/TH/190
hep-ph
null
We present calculations of several pp scattering cross sections with potential applications at the LHC. Significantly large rates for momentum fraction, x, as low as 10^-7 are obtained, allowing for possible extraction of quark and gluon densities in the proton and nuclei down to these small x values provided a detec...
[ { "created": "Mon, 27 Oct 1997 22:19:47 GMT", "version": "v1" } ]
2016-08-25
[ [ "Alvero", "L.", "", "Penn. State\n University, U.S.A." ], [ "Collins", "J. C.", "", "Penn. State\n University, U.S.A." ], [ "Strikman", "M.", "", "Penn. State\n University, U.S.A." ], [ "Whitmore", "J. J.", "", "Penn. State\n Universi...
We present calculations of several pp scattering cross sections with potential applications at the LHC. Significantly large rates for momentum fraction, x, as low as 10^-7 are obtained, allowing for possible extraction of quark and gluon densities in the proton and nuclei down to these small x values provided a detecto...
1006.2271
Kazuya Yonekura
Tsutomu T. Yanagida, Kazuya Yonekura
A Conformal Gauge Mediation and Dark Matter with Only One Parameter
17 pages
Phys.Lett.B693:281-286,2010
10.1016/j.physletb.2010.08.040
UT-10-10, IPMU-10-0099
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
If the supersymmetry (SUSY) is a solution to the hierarchy problem, it is puzzling that any SUSY particle has not been discovered yet. We show that there is a low-scale conformal gauge mediation model which contains all necessary ingredients, i.e. not only a SUSY-breaking dynamics and a gauge mediation mechanism, but...
[ { "created": "Fri, 11 Jun 2010 11:47:25 GMT", "version": "v1" } ]
2014-11-21
[ [ "Yanagida", "Tsutomu T.", "" ], [ "Yonekura", "Kazuya", "" ] ]
If the supersymmetry (SUSY) is a solution to the hierarchy problem, it is puzzling that any SUSY particle has not been discovered yet. We show that there is a low-scale conformal gauge mediation model which contains all necessary ingredients, i.e. not only a SUSY-breaking dynamics and a gauge mediation mechanism, but a...
hep-ph/9503395
Tetsuo Hatsuda
Tetsuo Hatsuda and Hiroyuki Shiomi
Vector Mesons in Nuclear Medium
4 pages, Latex, talk at Quark Matter '95
Nucl.Phys. A590 (1995) 545c-548c
10.1016/0375-9474(95)00274-5
null
hep-ph nucl-th
null
We summarize the current theoretical and experimental status of the spectral change of the vector mesons in dense matter.
[ { "created": "Tue, 21 Mar 1995 06:58:59 GMT", "version": "v1" } ]
2009-10-28
[ [ "Hatsuda", "Tetsuo", "" ], [ "Shiomi", "Hiroyuki", "" ] ]
We summarize the current theoretical and experimental status of the spectral change of the vector mesons in dense matter.
2111.01820
Alexander Penin A.
Tao Liu, Sneh Modi, Alexander A. Penin
Higgs Boson Production and Quark Scattering Amplitudes at High Energy through the Next-to-Next-to-Leading Power in Quark Mass
20 pages, 4 figures
null
10.1007/JHEP02(2022)170
ALBERTA-THY-32-21
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the amplitudes of the quark scattering by an external electromagnetic field and of the light quark mediated Higgs boson production via gluon fusion in the high-energy limit. The asymptotic behavior of the quark form factors is obtained in the double-logarithmic approximation to all orders in strong coupling ...
[ { "created": "Tue, 2 Nov 2021 18:04:43 GMT", "version": "v1" } ]
2022-03-09
[ [ "Liu", "Tao", "" ], [ "Modi", "Sneh", "" ], [ "Penin", "Alexander A.", "" ] ]
We study the amplitudes of the quark scattering by an external electromagnetic field and of the light quark mediated Higgs boson production via gluon fusion in the high-energy limit. The asymptotic behavior of the quark form factors is obtained in the double-logarithmic approximation to all orders in strong coupling co...
1304.0711
Rouzbeh Allahverdi
Rouzbeh Allahverdi and Bhaskar Dutta
Natural GeV Dark Matter and the Baryon-Dark Matter Coincidence Puzzle
6 pages
null
10.1103/PhysRevD.88.023525
MIFPA-13-12
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a simple extension of the standard model that gives rise to baryogenesis a has a dark matter candidate of O(GeV) mass. A minimal set of new fields required for baryogenesis includes two O(TeV) colored scalars and a singlet fermion. The fermion also becomes a viable dark matter candidate when its is nearly ...
[ { "created": "Tue, 2 Apr 2013 17:49:21 GMT", "version": "v1" } ]
2013-08-09
[ [ "Allahverdi", "Rouzbeh", "" ], [ "Dutta", "Bhaskar", "" ] ]
We present a simple extension of the standard model that gives rise to baryogenesis a has a dark matter candidate of O(GeV) mass. A minimal set of new fields required for baryogenesis includes two O(TeV) colored scalars and a singlet fermion. The fermion also becomes a viable dark matter candidate when its is nearly de...
2101.07421
Alexander Ritter
Alexander C. Ritter and Raymond R. Volkas
Implementing Asymmetric Dark Matter and Dark Electroweak Baryogenesis in a Mirror Two-Higgs-Doublet Model
58 pages, 6 figures. Matches published version. New content added, primarily in Sec.IV.A
Phys. Rev. D 104, 035032 (2021)
10.1103/PhysRevD.104.035032
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Models of asymmetric dark matter (ADM) seek to explain the apparent coincidence between the present-day mass densities of visible and dark matter, $\Omega_{\mathrm{DM}} \simeq 5\Omega_{\mathrm{VM}}$. However, most ADM models only relate the number densities of visible and dark matter without motivating the similar pa...
[ { "created": "Tue, 19 Jan 2021 02:31:37 GMT", "version": "v1" }, { "created": "Wed, 1 Sep 2021 03:33:35 GMT", "version": "v2" } ]
2021-09-02
[ [ "Ritter", "Alexander C.", "" ], [ "Volkas", "Raymond R.", "" ] ]
Models of asymmetric dark matter (ADM) seek to explain the apparent coincidence between the present-day mass densities of visible and dark matter, $\Omega_{\mathrm{DM}} \simeq 5\Omega_{\mathrm{VM}}$. However, most ADM models only relate the number densities of visible and dark matter without motivating the similar part...
hep-ph/0311113
Abbas Nehme
A. Nehme
Isospin Breaking in $K_{\ell 4}$ Decays of the Neutral Kaon
62 pages, LaTeX, 5 postscript figures, 1 table
Nucl.Phys. B682 (2004) 289-346
10.1016/j.nuclphysb.2004.01.017
CPT-2003/P.4509
hep-ph
null
In the presence of photons, the neutral $K_{\ell 4}$ decay, $K^0\to\pi^0\pi^-\ell^+\nu_\ell$, can be parameterized in terms of three vectorial, one anomalous, and one tensorial form factors. We present here analytic expressions of two vectorial form factors, $f$ and $g$, calculated at one-loop level in the framework ...
[ { "created": "Mon, 10 Nov 2003 13:55:10 GMT", "version": "v1" } ]
2009-11-10
[ [ "Nehme", "A.", "" ] ]
In the presence of photons, the neutral $K_{\ell 4}$ decay, $K^0\to\pi^0\pi^-\ell^+\nu_\ell$, can be parameterized in terms of three vectorial, one anomalous, and one tensorial form factors. We present here analytic expressions of two vectorial form factors, $f$ and $g$, calculated at one-loop level in the framework of...
hep-ph/0501090
Thomas D. Cohen
Thomas D. COhen
Excited Baryons in Large $N_c$ QCD
Talk at "Baryons 04", Palaiseau, October 2004
Nucl.Phys. A755 (2005) 40-48
10.1016/j.nuclphysa.2005.03.022
null
hep-ph
null
This talk reviews recent developments in the use of large $N_c$ QCD in the description of baryonic resonances. The emphasis is on the model-independent nature of the approach. Key issues discussed include the spin-flavor symmetry which emerges at large $N_c$ and the direct use of scattering observables. The connectio...
[ { "created": "Tue, 11 Jan 2005 19:17:05 GMT", "version": "v1" } ]
2015-06-25
[ [ "COhen", "Thomas D.", "" ] ]
This talk reviews recent developments in the use of large $N_c$ QCD in the description of baryonic resonances. The emphasis is on the model-independent nature of the approach. Key issues discussed include the spin-flavor symmetry which emerges at large $N_c$ and the direct use of scattering observables. The connection ...
hep-ph/9710249
Chris Michael
Chris Michael
Hadronic Physics from the Lattice
to appear in Proceedings of the NATO Advanced Study Institute on Confinement, Duality and Non-Perturbative Aspects of QCD. June 23 - July 4, 1997; 19 pages, Latex, 6 postscript figures
null
null
LTH 411
hep-ph hep-lat
null
Topics covered in this review are the lattice gauge theory approach to the evaluation of non-perturbative hadronic interactions from first principles, particularly applications to glueballs, inter-quark potentials, the running coupling constant and hybrid mesons. Also discussed are the limitations of the quenched app...
[ { "created": "Mon, 6 Oct 1997 11:39:44 GMT", "version": "v1" } ]
2007-05-23
[ [ "Michael", "Chris", "" ] ]
Topics covered in this review are the lattice gauge theory approach to the evaluation of non-perturbative hadronic interactions from first principles, particularly applications to glueballs, inter-quark potentials, the running coupling constant and hybrid mesons. Also discussed are the limitations of the quenched appro...
2105.04050
Timofey Uglov
P. Pakhlov and T. Uglov
On measurement of photon polarization in radiative penguin $B$ decays to baryons
4 pages, 2 figures
European Physical Journal C 81 (2021) 759
10.1140/epjc/s10052-021-09528-4
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
A measurement of the photon polarization in radiative penguin $B$ decays provides a test of the Standard Model and a probe for New Physics, that can lead to a deviation from the Standard Model prediction of left-handed photons in $b\to s \gamma$. We propose a new method to measure the photon polarization using the ba...
[ { "created": "Sun, 9 May 2021 23:20:50 GMT", "version": "v1" }, { "created": "Wed, 8 Sep 2021 16:55:12 GMT", "version": "v2" } ]
2021-09-09
[ [ "Pakhlov", "P.", "" ], [ "Uglov", "T.", "" ] ]
A measurement of the photon polarization in radiative penguin $B$ decays provides a test of the Standard Model and a probe for New Physics, that can lead to a deviation from the Standard Model prediction of left-handed photons in $b\to s \gamma$. We propose a new method to measure the photon polarization using the bary...
0905.0419
Lisheng Geng
L. S. Geng, E. Oset, R. Molina, and D. Nicmorus
Dynamically generated resonances from vector meson-vector meson interaction based on a hidden-gauge unitary approach
7 pages, 1 figure, 4 tables; presented at the International Workshop on Effective Field Theories: from the Pion to the Upsilon, 2-6 February 2009, Valencia, Spain
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a recent study of vector meson-vector meson interaction using a unitary approach based on the hidden-gauge Lagrangians. We find that 11 states get dynamically generated, corresponding to poles of the scattering matrices on the second Riemann sheet. Five of them are associated to the $f_0(1370)$, $f_0(1710)...
[ { "created": "Mon, 4 May 2009 16:41:34 GMT", "version": "v1" } ]
2009-05-05
[ [ "Geng", "L. S.", "" ], [ "Oset", "E.", "" ], [ "Molina", "R.", "" ], [ "Nicmorus", "D.", "" ] ]
We present a recent study of vector meson-vector meson interaction using a unitary approach based on the hidden-gauge Lagrangians. We find that 11 states get dynamically generated, corresponding to poles of the scattering matrices on the second Riemann sheet. Five of them are associated to the $f_0(1370)$, $f_0(1710)$,...
1508.00308
Harleen Dahiya Dr.
Aarti Girdhar, Harleen Dahiya and Monika Randhawa
Magnetic moments of $J^P=\frac{3}{2}^+$ decuplet baryons using effective quark masses in chiral constituent quark model
21 pages. To appear in Phys. Rev. D. arXiv admin note: text overlap with arXiv:1505.03304
Phys.Rev. D92 (2015) 3, 033012
10.1103/PhysRevD.92.033012
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The magnetic moments of $J^P=\frac{3}{2}^+$ decuplet baryons have been calculated in the chiral constituent quark model ($\chi$CQM) with explicit results for the contribution coming from the valence quark polarizations, sea quark polarizations, and their orbital angular momentum. Since the $J^P=\frac{3}{2}^+$ decuple...
[ { "created": "Mon, 3 Aug 2015 03:34:35 GMT", "version": "v1" } ]
2015-09-30
[ [ "Girdhar", "Aarti", "" ], [ "Dahiya", "Harleen", "" ], [ "Randhawa", "Monika", "" ] ]
The magnetic moments of $J^P=\frac{3}{2}^+$ decuplet baryons have been calculated in the chiral constituent quark model ($\chi$CQM) with explicit results for the contribution coming from the valence quark polarizations, sea quark polarizations, and their orbital angular momentum. Since the $J^P=\frac{3}{2}^+$ decuplet ...
hep-ph/0305029
Cosmin Macesanu
C. Macesanu, A. Mitov and S. Nandi
Gravity and Matter in Extra Dimensions
21 pages, 6 figures, Latex
Phys.Rev. D68 (2003) 084008
10.1103/PhysRevD.68.084008
null
hep-ph
null
In this paper, we derive from the viewpoint of the effective 4D theory the interaction terms between linearized gravity propagating in N>= 2 large extra dimensions and matter propagating into one extra dimension. This generalizes known results for the interactions between gravity and 4D matter in ADD-type models. Alt...
[ { "created": "Fri, 2 May 2003 22:53:39 GMT", "version": "v1" } ]
2009-11-10
[ [ "Macesanu", "C.", "" ], [ "Mitov", "A.", "" ], [ "Nandi", "S.", "" ] ]
In this paper, we derive from the viewpoint of the effective 4D theory the interaction terms between linearized gravity propagating in N>= 2 large extra dimensions and matter propagating into one extra dimension. This generalizes known results for the interactions between gravity and 4D matter in ADD-type models. Altho...
0811.3537
John F. Gunion
Radovan Dermisek and John F. Gunion
Many Light Higgs Bosons in the NMSSM
15 pages, 47 figures
Phys.Rev.D79:055014,2009
10.1103/PhysRevD.79.055014
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The next-to-minimal supersymmetric model with a light doublet-like CP-odd Higgs boson and small $\tan \beta$ can satisfy all experimental limits on Higgs bosons even with light superpartners. In these scenarios, the two lightest CP-even Higgs bosons, $\hi$ and $\hii$, and the charged Higgs boson, $\hp$, can all be ...
[ { "created": "Fri, 21 Nov 2008 09:29:54 GMT", "version": "v1" } ]
2009-03-24
[ [ "Dermisek", "Radovan", "" ], [ "Gunion", "John F.", "" ] ]
The next-to-minimal supersymmetric model with a light doublet-like CP-odd Higgs boson and small $\tan \beta$ can satisfy all experimental limits on Higgs bosons even with light superpartners. In these scenarios, the two lightest CP-even Higgs bosons, $\hi$ and $\hii$, and the charged Higgs boson, $\hp$, can all be ligh...
hep-ph/9207216
null
Mirjam Cveti\v{c} and Paul Langacker
$V'Z$ and $V'W$ Production as Tests of Heavy Gauge Boson Couplings at Future Hadron Colliders
27 pages, 14 figures (not included), PHYZZX and TABLES, UPR-0514T
Phys.Rev.D46:4943,1992; Erratum-ibid.D48:4484,1993; Phys.Rev.D48:4484,1993
10.1103/PhysRevD.46.4943 10.1103/PhysRevD.48.4484
null
hep-ph
null
We point out that the production cross section of $pp\to V'V$, with $V'=W',Z'$ and $V=W,Z$ is a useful diagnostic of $V'$ gauge couplings at future hadron colliders. For $M_{Z'}\simeq1$ TeV it would allow determination of combinations of $Z'$ gauge couplings to the quarks to around 10 percent. An analysis of the extr...
[ { "created": "Sun, 5 Jul 1992 20:11:03 GMT", "version": "v1" } ]
2014-11-17
[ [ "Cvetič", "Mirjam", "" ], [ "Langacker", "Paul", "" ] ]
We point out that the production cross section of $pp\to V'V$, with $V'=W',Z'$ and $V=W,Z$ is a useful diagnostic of $V'$ gauge couplings at future hadron colliders. For $M_{Z'}\simeq1$ TeV it would allow determination of combinations of $Z'$ gauge couplings to the quarks to around 10 percent. An analysis of the extrac...
1111.6330
Xiao-Gang He
Gang Guo, Xiao-Gang He
Dispersion Relations Explaining OPERA Data From Deformed Lorentz Transformation
8 pages, 2 figures. Several typos corrected and some references added
null
10.1142/S2010194512005909
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
OPERA collaboration has reported evidence of superluminal phenomenon for neutrinos. One of the possible ways to explain the superluminality is to have Lorentz symmetry violated. It has been shown that dispersion relations put forwards has the problem of physics laws vary in different inertial frames leading to confli...
[ { "created": "Mon, 28 Nov 2011 02:25:03 GMT", "version": "v1" }, { "created": "Fri, 2 Dec 2011 01:17:50 GMT", "version": "v2" } ]
2015-06-03
[ [ "Guo", "Gang", "" ], [ "He", "Xiao-Gang", "" ] ]
OPERA collaboration has reported evidence of superluminal phenomenon for neutrinos. One of the possible ways to explain the superluminality is to have Lorentz symmetry violated. It has been shown that dispersion relations put forwards has the problem of physics laws vary in different inertial frames leading to conflict...
hep-ph/0211298
Sergei Chekanov
S. V. Chekanov (ANL)
Jet algorithms: a minireview
8 pages, 2 eps figures, to be published in the proceedings of the 14th Topical Conference on Hadron Collider Physics, (28 Sep - 4 Oct 2002) Karlsruhe, Germany
null
null
ANL-HEP-CP-02-103
hep-ph
null
Many jet algorithms have been proposed in the past to study the hadronic final state in E+E-, EP and PP collisions. Here we review some of the most popular, mainly concentrating on the jet algorithms used at HERA and TEVATRON.
[ { "created": "Tue, 19 Nov 2002 10:44:57 GMT", "version": "v1" } ]
2007-05-23
[ [ "Chekanov", "S. V.", "", "ANL" ] ]
Many jet algorithms have been proposed in the past to study the hadronic final state in E+E-, EP and PP collisions. Here we review some of the most popular, mainly concentrating on the jet algorithms used at HERA and TEVATRON.
2008.08940
Shihwen Hor
Koichi Hamaguchi, Shihwen Hor, and Natsumi Nagata
R-Symmetric Flipped SU(5)
30 pages, 2 figures
null
10.1007/JHEP11(2020)140
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We construct a supersymmetric flipped SU(5) grand unified model that possesses an $R$ symmetry. This $R$ symmetry forbids dangerous non-renormalizable operators suppressed by a cut-off scale up to sufficiently large mass dimensions so that the SU(5)-breaking Higgs field develops a vacuum expectation value of the orde...
[ { "created": "Thu, 20 Aug 2020 12:49:02 GMT", "version": "v1" } ]
2020-12-30
[ [ "Hamaguchi", "Koichi", "" ], [ "Hor", "Shihwen", "" ], [ "Nagata", "Natsumi", "" ] ]
We construct a supersymmetric flipped SU(5) grand unified model that possesses an $R$ symmetry. This $R$ symmetry forbids dangerous non-renormalizable operators suppressed by a cut-off scale up to sufficiently large mass dimensions so that the SU(5)-breaking Higgs field develops a vacuum expectation value of the order ...
hep-ph/9708454
null
T.G. Steele, J.C. Breckenridge, M. Benmerrouche, V. Elias, A.H. Fariborz
QCD Sum Rules and the Pi(1300) Resonance
latex, 8 pages, 5 figures
Nucl.Phys. A624 (1997) 517-526
10.1016/S0375-9474(97)00472-7
null
hep-ph
null
Global fits to the shape of the first QCD Laplace sum rule exhibiting sensitivity to pion-resonance [$\Pi (1300)$] parameters are performed, leading to predictions for the pion-resonance mass and decay constant. Two scenarios are considered which differ only in their treatment of the dimension-six quark condensate $<...
[ { "created": "Mon, 25 Aug 1997 20:01:42 GMT", "version": "v1" } ]
2009-10-30
[ [ "Steele", "T. G.", "" ], [ "Breckenridge", "J. C.", "" ], [ "Benmerrouche", "M.", "" ], [ "Elias", "V.", "" ], [ "Fariborz", "A. H.", "" ] ]
Global fits to the shape of the first QCD Laplace sum rule exhibiting sensitivity to pion-resonance [$\Pi (1300)$] parameters are performed, leading to predictions for the pion-resonance mass and decay constant. Two scenarios are considered which differ only in their treatment of the dimension-six quark condensate $< O...
2102.07082
Manu Kurian
Jai Prakash, Manu Kurian, Santosh K. Das, Vinod Chandra
Heavy quark transport in an anisotropic hot QCD medium: Collisional and Radiative processes
11 pages, 4 figures, Version accepted for publication in Physical Review D
Phys. Rev. D 103, 094009 (2021)
10.1103/PhysRevD.103.094009
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The impact of momentum anisotropy on the heavy quark transport coefficients due to collisional and radiative processes in the QCD medium has been studied within the ambit of kinetic theory. Anisotropic aspects (momentum) are incorporated into the heavy quark dynamics through the non-equilibrium momentum distribution ...
[ { "created": "Sun, 14 Feb 2021 06:29:35 GMT", "version": "v1" }, { "created": "Sat, 1 May 2021 09:22:34 GMT", "version": "v2" } ]
2021-05-14
[ [ "Prakash", "Jai", "" ], [ "Kurian", "Manu", "" ], [ "Das", "Santosh K.", "" ], [ "Chandra", "Vinod", "" ] ]
The impact of momentum anisotropy on the heavy quark transport coefficients due to collisional and radiative processes in the QCD medium has been studied within the ambit of kinetic theory. Anisotropic aspects (momentum) are incorporated into the heavy quark dynamics through the non-equilibrium momentum distribution fu...
hep-ph/9412321
Vladimir Pascalutsa
V. Pascalutsa
On the interaction of spin 3/2 particles
4 pages, latex, no figures
null
null
null
hep-ph
null
Lagrangian of a massive particle with spin 3/2 is considered in the Rarita-Schwinger formalism. We discuss implications of the contact- and the gauge-transformation on the physical content of free and interacting theories. It is shown that the ``contact-invariance'' is trivial and has no physical relevance. The requi...
[ { "created": "Mon, 19 Dec 1994 21:39:36 GMT", "version": "v1" }, { "created": "Tue, 20 Dec 1994 06:14:05 GMT", "version": "v2" }, { "created": "Tue, 9 Jul 1996 16:14:40 GMT", "version": "v3" } ]
2016-09-01
[ [ "Pascalutsa", "V.", "" ] ]
Lagrangian of a massive particle with spin 3/2 is considered in the Rarita-Schwinger formalism. We discuss implications of the contact- and the gauge-transformation on the physical content of free and interacting theories. It is shown that the ``contact-invariance'' is trivial and has no physical relevance. The require...
1006.2431
Guy F. de T\'eramond
Guy F. de Teramond and Stanley J. Brodsky
Gauge/Gravity Duality and Hadron Physics at the Light-Front
Invited talk presented by GdT at XI Hadron Physics, Maresias Beach, Sao Paulo, Brazil, 21-26 March 2010
AIP Conf.Proc.1296:128-139,2010
10.1063/1.3523157
SLAC-PUB-14154, CP3-Origins-2010-22
hep-ph hep-lat hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss some remarkable features of the light-front holographic mapping of classical gravity in anti-de Sitter space modified by a confining dilaton background. In particular, we show that a positive-sign dilaton solution $\exp(+\kappa^2 z^2)$ has better chances to describe the correct hadronic phenomenology than ...
[ { "created": "Sat, 12 Jun 2010 04:37:48 GMT", "version": "v1" }, { "created": "Tue, 22 Jun 2010 17:25:21 GMT", "version": "v2" } ]
2010-12-15
[ [ "de Teramond", "Guy F.", "" ], [ "Brodsky", "Stanley J.", "" ] ]
We discuss some remarkable features of the light-front holographic mapping of classical gravity in anti-de Sitter space modified by a confining dilaton background. In particular, we show that a positive-sign dilaton solution $\exp(+\kappa^2 z^2)$ has better chances to describe the correct hadronic phenomenology than th...
1808.00140
Zhun Lu
Zhi-Lei Ma and Zhun Lu
Quark Wigner distribution of the pion meson in light-cone quark model
9 pages, 3 figures
Phys. Rev. D 98, 054024 (2018)
10.1103/PhysRevD.98.054024
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the quark Wigner distributions of the pion meson which are the phase-space distributions containing the most general one-parton information.Using the pion wavefunctions deduced from a light-cone quark model, we calculate the Wigner distributions of the unpolarized, longitudinally polarized and transversely p...
[ { "created": "Wed, 1 Aug 2018 02:10:17 GMT", "version": "v1" } ]
2018-10-03
[ [ "Ma", "Zhi-Lei", "" ], [ "Lu", "Zhun", "" ] ]
We study the quark Wigner distributions of the pion meson which are the phase-space distributions containing the most general one-parton information.Using the pion wavefunctions deduced from a light-cone quark model, we calculate the Wigner distributions of the unpolarized, longitudinally polarized and transversely pol...
1702.08666
Yoshihiro Shigekami
P. Ko, Yuji Omura, Yoshihiro Shigekami and Chaehyun Yu
LHCb anomaly and $B$ physics in flavored Z$^{\prime}$ models with flavored Higgs doublets
28 pages, 5 figures, v2: texts and figures are improved
Phys. Rev. D 95, 115040 (2017)
10.1103/PhysRevD.95.115040
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study an extended Standard Model with a gauged U(1)$^{\prime}$ flavor symmetry, motivated not only by the fermion mass hierarchy but also by the excesses in $B \to K^{(*)} l l$ reported by the LHCb collaborations. The U(1)$^{\prime}$ charges are assigned to quarks and leptons in a flavor-dependent manner, and flav...
[ { "created": "Tue, 28 Feb 2017 06:40:44 GMT", "version": "v1" }, { "created": "Wed, 12 Jul 2017 09:58:46 GMT", "version": "v2" } ]
2017-07-13
[ [ "Ko", "P.", "" ], [ "Omura", "Yuji", "" ], [ "Shigekami", "Yoshihiro", "" ], [ "Yu", "Chaehyun", "" ] ]
We study an extended Standard Model with a gauged U(1)$^{\prime}$ flavor symmetry, motivated not only by the fermion mass hierarchy but also by the excesses in $B \to K^{(*)} l l$ reported by the LHCb collaborations. The U(1)$^{\prime}$ charges are assigned to quarks and leptons in a flavor-dependent manner, and flavor...
1209.3242
Mikhail Vysotsky
M. I. Vysotsky
Screening of the Coulomb potential in superstrong magnetic field: atomic levels and spontaneous production of positrons
The expanded variant of the lectures delivered at the 39th ITEP Winter School in 2011. 22 pages, 7 figures, 6 tables
null
null
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The expanded variant of the lectures delivered at the 39th ITEP Winter School in 2011
[ { "created": "Fri, 14 Sep 2012 16:04:51 GMT", "version": "v1" }, { "created": "Thu, 1 Nov 2012 11:19:38 GMT", "version": "v2" } ]
2012-11-02
[ [ "Vysotsky", "M. I.", "" ] ]
The expanded variant of the lectures delivered at the 39th ITEP Winter School in 2011
1007.2645
Michael Rauch
Sebastian Bock, Remi Lafaye, Tilman Plehn, Michael Rauch, Dirk Zerwas, Peter M. Zerwas
Measuring Hidden Higgs and Strongly-Interacting Higgs Scenarios
12 pages, 7 figures; version to be published in Phys. Lett. B
Phys.Lett.B694:44-53,2010
10.1016/j.physletb.2010.09.032
KA-TP-20-2010, SFB/CPP-10-59
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Higgs couplings can be affected by physics beyond the Standard Model. We study modifications through interactions with a hidden sector and in specific composite Higgs models accessible at the LHC. Both scenarios give rise to congruent patterns of universal, or partially universal, shifts. In addition, Higgs decays to...
[ { "created": "Thu, 15 Jul 2010 20:01:33 GMT", "version": "v1" }, { "created": "Thu, 16 Sep 2010 20:08:17 GMT", "version": "v2" } ]
2011-03-28
[ [ "Bock", "Sebastian", "" ], [ "Lafaye", "Remi", "" ], [ "Plehn", "Tilman", "" ], [ "Rauch", "Michael", "" ], [ "Zerwas", "Dirk", "" ], [ "Zerwas", "Peter M.", "" ] ]
Higgs couplings can be affected by physics beyond the Standard Model. We study modifications through interactions with a hidden sector and in specific composite Higgs models accessible at the LHC. Both scenarios give rise to congruent patterns of universal, or partially universal, shifts. In addition, Higgs decays to t...
hep-ph/0612167
Ulrich Nierste
Alexander Lenz and Ulrich Nierste
Theoretical update of Bs-Bs-bar mixing
38 pages, 7 figures, revised version to appear in JHEP, comments added. We correct the incorrect use of an experimental input in eq. (93) and Fig. 7. Our conclusions remain unchanged
JHEP 0706:072,2007
10.1088/1126-6708/2007/06/072
TTP06-31
hep-ph
null
We update the theory predictions for the mass difference $\dm_s$, the width difference $\dg_s$ and the CP asymmetry in flavour-specific decays, $a_{\rm fs}^{s}$, for the \bbs system. In particular we present a new expression for the element $\Gamma_{12}^s$ of the decay matrix, which enters the predictions of $\dg_s$ ...
[ { "created": "Wed, 13 Dec 2006 20:33:10 GMT", "version": "v1" }, { "created": "Tue, 12 Jun 2007 07:12:48 GMT", "version": "v2" }, { "created": "Tue, 27 Nov 2007 15:59:36 GMT", "version": "v3" } ]
2010-10-27
[ [ "Lenz", "Alexander", "" ], [ "Nierste", "Ulrich", "" ] ]
We update the theory predictions for the mass difference $\dm_s$, the width difference $\dg_s$ and the CP asymmetry in flavour-specific decays, $a_{\rm fs}^{s}$, for the \bbs system. In particular we present a new expression for the element $\Gamma_{12}^s$ of the decay matrix, which enters the predictions of $\dg_s$ an...
2304.07080
Kristjan Kannike
Kristjan Kannike
Dark matter induced dynamical symmetry breaking
6 pages, 3 figures, contribution to the 2023 Electroweak session of the 57th Rencontres de Moriond
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the classically scale invariant Higgs-dilaton model of dynamical symmetry breaking extended with an extra scalar field that plays the role of dark matter. The Higgs boson is light near a critical boundary between different symmetry breaking phases, where quantum corrections beyond the usual Gildener-Weinb...
[ { "created": "Fri, 14 Apr 2023 12:08:41 GMT", "version": "v1" } ]
2023-04-17
[ [ "Kannike", "Kristjan", "" ] ]
We consider the classically scale invariant Higgs-dilaton model of dynamical symmetry breaking extended with an extra scalar field that plays the role of dark matter. The Higgs boson is light near a critical boundary between different symmetry breaking phases, where quantum corrections beyond the usual Gildener-Weinber...
hep-ph/0001240
Anna Dubnickova
S. Dubnicka (SAS Bratislava), A.Z. Dubnickova, P. Weisenpacher (Comenius University)
Non-Standard Model of the Nucleon Electromagnetic Structure and its Predictability
Latex, 35 pages, 5 eps figures
null
null
null
hep-ph
null
Unitary and analytic ten-resonance model of the nucleon electromagnetic (e.m.) structure with canonical normalizations and asymptotics is constructed on a four-sheeted Riemann surface. It describes well all existing experimental space-like and time-like data on the nucleon e.m. form factors (ff's), including also FEN...
[ { "created": "Mon, 24 Jan 2000 15:15:04 GMT", "version": "v1" } ]
2007-05-23
[ [ "Dubnicka", "S.", "", "SAS Bratislava" ], [ "Dubnickova", "A. Z.", "", "Comenius University" ], [ "Weisenpacher", "P.", "", "Comenius University" ] ]
Unitary and analytic ten-resonance model of the nucleon electromagnetic (e.m.) structure with canonical normalizations and asymptotics is constructed on a four-sheeted Riemann surface. It describes well all existing experimental space-like and time-like data on the nucleon e.m. form factors (ff's), including also FENIC...
hep-ph/0110255
Gino Isidori
Gino Isidori
Rare decays: theory vs. experiments
20 pages, 9 figures, invited talk at 20th International Symposium on Lepton and Photon Interactions at High Energies, Rome, August 2001; v2 & v3: minor modifications, few references added
Int.J.Mod.Phys.A17:3078-3098,2002
10.1142/S0217751X02012612
CERN-TH/2001-284
hep-ph
null
We present an overview of rare K, D and B decays. Particular attention is devoted to those flavour-changing neutral-current processes of K and B mesons that offer the possibility of new significant tests of the Standard Model. The sensitivity of these modes to physics beyond the Standard Model and the status of their...
[ { "created": "Thu, 18 Oct 2001 15:26:17 GMT", "version": "v1" }, { "created": "Fri, 9 Nov 2001 17:28:40 GMT", "version": "v2" }, { "created": "Tue, 20 Nov 2001 09:14:48 GMT", "version": "v3" } ]
2010-11-23
[ [ "Isidori", "Gino", "" ] ]
We present an overview of rare K, D and B decays. Particular attention is devoted to those flavour-changing neutral-current processes of K and B mesons that offer the possibility of new significant tests of the Standard Model. The sensitivity of these modes to physics beyond the Standard Model and the status of their e...
hep-ph/9602395
Francesco Vissani
Francesco Vissani
$R$-Parity Breaking Phenomenology
LaTeX, 10 pages, 1 LaTeX figure; to appear in the proceedings of the 5th Hellenic School and Workshops on Elementary Particle Physics; minor changes, 1 reference added
null
null
IC/96/32
hep-ph
null
We review various features of the $R$-parity breaking phenomenology, with particular attention to the low energy observables, and to the patterns of the $R$-parity breaking interactions that arise in Grand Unified models.
[ { "created": "Mon, 26 Feb 1996 13:27:21 GMT", "version": "v1" }, { "created": "Mon, 11 Mar 1996 18:41:40 GMT", "version": "v2" } ]
2008-02-03
[ [ "Vissani", "Francesco", "" ] ]
We review various features of the $R$-parity breaking phenomenology, with particular attention to the low energy observables, and to the patterns of the $R$-parity breaking interactions that arise in Grand Unified models.
1403.7503
Vladyslav Pauk
Vladyslav Pauk, Marc Vanderhaeghen
Two-loop massive scalar three-point function in a dispersive approach
13 pages, 11 figures
null
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a dispersion relation formalism to calculate a massive scalar two-loop vertex function. Such calculation is of direct relevance in the evaluation of the hadronic light-by-light contribution to the muon's anomalous magnetic moment due to meson poles. The discontinuity of the two-loop diagram is obtained by ...
[ { "created": "Fri, 28 Mar 2014 19:28:38 GMT", "version": "v1" }, { "created": "Wed, 12 Nov 2014 14:59:17 GMT", "version": "v2" } ]
2014-11-13
[ [ "Pauk", "Vladyslav", "" ], [ "Vanderhaeghen", "Marc", "" ] ]
We present a dispersion relation formalism to calculate a massive scalar two-loop vertex function. Such calculation is of direct relevance in the evaluation of the hadronic light-by-light contribution to the muon's anomalous magnetic moment due to meson poles. The discontinuity of the two-loop diagram is obtained by a ...
hep-ph/9807478
Sasa Prelovsek
S. Prelovsek, S. Fajfer and P. Singer
Can FCNC transition $c\to ul^+l^-$ be seen in $D\to Vl^+l^-$ decays?
3 pages, latex, 3 figures, Talk given by S. Prelovsek at the Hyperons, Charm and Beauty Hadrons, Genova, Italy, 30 June -3 July 1998, to appear as proceedings in Nucl. Phys. B
Nucl.Phys.Proc.Suppl.75B:141-143,1999
10.1016/S0920-5632(99)00224-8
IJS-TP-98/17
hep-ph
null
The decays $D\to Vl^+l^-$ present in principle the opportunity to observe the short distance FCNC transition $c\to ul^+l^-$, which is sensitive to the physics beyond the Standard Model. We analyze the $D \to V l^+ l^- $ decays within the Standard Model, where in addition to the short distance dynamics also the long d...
[ { "created": "Thu, 23 Jul 1998 14:06:02 GMT", "version": "v1" } ]
2009-10-31
[ [ "Prelovsek", "S.", "" ], [ "Fajfer", "S.", "" ], [ "Singer", "P.", "" ] ]
The decays $D\to Vl^+l^-$ present in principle the opportunity to observe the short distance FCNC transition $c\to ul^+l^-$, which is sensitive to the physics beyond the Standard Model. We analyze the $D \to V l^+ l^- $ decays within the Standard Model, where in addition to the short distance dynamics also the long dis...
hep-ph/0501018
Sergey Troshin
S. M. Troshin, N. E. Tyurin
Cosmic rays and antishadowing
6 pages, 3 figures, extended content
null
null
null
hep-ph astro-ph
null
We note that antishadowing could help in the explanation of cosmic rays phenomena such as knee in the energetic spectrum and existence of penetrating and long-flying particles.
[ { "created": "Tue, 4 Jan 2005 09:23:00 GMT", "version": "v1" }, { "created": "Thu, 14 Apr 2005 07:22:46 GMT", "version": "v2" }, { "created": "Fri, 27 May 2005 08:13:13 GMT", "version": "v3" } ]
2007-05-23
[ [ "Troshin", "S. M.", "" ], [ "Tyurin", "N. E.", "" ] ]
We note that antishadowing could help in the explanation of cosmic rays phenomena such as knee in the energetic spectrum and existence of penetrating and long-flying particles.
hep-ph/9906417
Juergen Baacke
J. Baacke and C. Patzold
Out-of-equilibrium evolution of scalar fields in FRW cosmology: renormalization and numerical simulations
44 pages, uses latexsym, 6 pages with 11 figures in a .ps file
Phys.Rev. D61 (2000) 024016
10.1103/PhysRevD.61.024016
DO-TH-99/09
hep-ph
null
We present a renormalized computational framework for the evolution of a self-interacting scalar field (inflaton) and its quantum fluctuations in an FRW background geometry. We include a coupling of the field to the Ricci scalar with a general coupling parameter $\xi$. We take into account the classical and quantum b...
[ { "created": "Thu, 17 Jun 1999 15:52:03 GMT", "version": "v1" } ]
2009-10-31
[ [ "Baacke", "J.", "" ], [ "Patzold", "C.", "" ] ]
We present a renormalized computational framework for the evolution of a self-interacting scalar field (inflaton) and its quantum fluctuations in an FRW background geometry. We include a coupling of the field to the Ricci scalar with a general coupling parameter $\xi$. We take into account the classical and quantum bac...
0807.4474
Markus Diehl
Daniela Amrath, Markus Diehl, Jean-Philippe Lansberg
Deeply virtual Compton scattering on a virtual pion target
23 pages, 9 figures
Eur.Phys.J.C58:179-192,2008
10.1140/epjc/s10052-008-0769-1
DESY 08-103, CPHT-RR007.0308
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study deeply virtual Compton scattering on a virtual pion that is emitted by a proton. Using a range of models for the generalized parton distributions of the pion, we evaluate the cross section, as well as the beam spin and beam charge asymmetries in the leading-twist approximation. Studying Compton scattering on...
[ { "created": "Mon, 28 Jul 2008 15:33:54 GMT", "version": "v1" } ]
2008-12-18
[ [ "Amrath", "Daniela", "" ], [ "Diehl", "Markus", "" ], [ "Lansberg", "Jean-Philippe", "" ] ]
We study deeply virtual Compton scattering on a virtual pion that is emitted by a proton. Using a range of models for the generalized parton distributions of the pion, we evaluate the cross section, as well as the beam spin and beam charge asymmetries in the leading-twist approximation. Studying Compton scattering on t...
hep-ph/9709236
Hsiang-Nan Li
Hsiang-nan Li
A modified BFKL equation with unitarity
Conclusion is revised. One figure is added
Phys.Lett. B429 (1998) 121-126
10.1016/S0370-2693(98)00433-X
NCKU-HEP-97-05
hep-ph
null
We propose a modified Balitskii-Fadin-Kuraev-Lipatov equation from the viewpoint of the resummation technique, which satisfies the unitarity bound. The idea is to relax the strong rapidity ordering and to restrict phase space for real gluon emissions in the evaluation of the BFKL kernel. It is found that the gluon di...
[ { "created": "Thu, 4 Sep 1997 17:37:44 GMT", "version": "v1" }, { "created": "Fri, 26 Sep 1997 06:30:21 GMT", "version": "v2" } ]
2009-10-30
[ [ "Li", "Hsiang-nan", "" ] ]
We propose a modified Balitskii-Fadin-Kuraev-Lipatov equation from the viewpoint of the resummation technique, which satisfies the unitarity bound. The idea is to relax the strong rapidity ordering and to restrict phase space for real gluon emissions in the evaluation of the BFKL kernel. It is found that the gluon dist...
2205.13118
Yu-Qi Xiao
Shao-Long Chen and Yu-Qi Xiao
The Neutrinoless Double Beta Decay in the Colored Zee-Babu Model
18 pages, 3 figures, references added
null
10.1016/j.nuclphysb.2022.116041
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We study the neutrinoless double beta decay in the colored Zee-Babu model. We consider three cases of the colored Zee-Babu model with a leptoquark and a diquark introduced. The neutrino masses are generated at two-loop level, and the constraints given by tree-level flavor violation processes and muon anomalous magnet...
[ { "created": "Thu, 26 May 2022 02:56:02 GMT", "version": "v1" }, { "created": "Mon, 6 Jun 2022 07:53:43 GMT", "version": "v2" } ]
2022-12-28
[ [ "Chen", "Shao-Long", "" ], [ "Xiao", "Yu-Qi", "" ] ]
We study the neutrinoless double beta decay in the colored Zee-Babu model. We consider three cases of the colored Zee-Babu model with a leptoquark and a diquark introduced. The neutrino masses are generated at two-loop level, and the constraints given by tree-level flavor violation processes and muon anomalous magnetic...
1411.2606
Ariel Zhitnitsky
Ariel R. Zhitnitsky
The topological long range order in QCD. Applications to heavy ion collisions and cosmology
Prepare for the proceedings of the 3rd International Conference on New Frontiers in Physics (ICNFP-2014), Kolymbari, Crete, 2014, 14 pages, 4 figures
null
null
null
hep-ph gr-qc hep-lat hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We argue that the local violation of P invariance in heavy ion collisions is a consequence of the long range topological order which is inherent feature of strongly coupled QCD. A similar phenomenon is known to occur in some topologically ordered condensed matter systems with a gap. We also discuss possible cosmologi...
[ { "created": "Mon, 10 Nov 2014 21:02:19 GMT", "version": "v1" } ]
2014-11-12
[ [ "Zhitnitsky", "Ariel R.", "" ] ]
We argue that the local violation of P invariance in heavy ion collisions is a consequence of the long range topological order which is inherent feature of strongly coupled QCD. A similar phenomenon is known to occur in some topologically ordered condensed matter systems with a gap. We also discuss possible cosmologica...
hep-ph/9705289
Masayuki Uehara
S. Saito(Nagoya University) and M. Uehara(Saga University)
Do really the seagull terms survive for the electric polarizability of the nucleon
9 pages
Nucl.Phys. A628 (1998) 112-118
10.1016/S0375-9474(97)00621-0
SAGA-HE-123
hep-ph
null
The seagull terms for the electric polarizability of the nucleon are shown to vanish, if one introduces fluctuations around the Skyrmion, and the origin of the eletric polarizability cannot be attributed to the seagull terms in the Skyrme model.
[ { "created": "Mon, 12 May 1997 06:08:15 GMT", "version": "v1" } ]
2009-10-30
[ [ "Saito", "S.", "", "Nagoya University" ], [ "Uehara", "M.", "", "Saga University" ] ]
The seagull terms for the electric polarizability of the nucleon are shown to vanish, if one introduces fluctuations around the Skyrmion, and the origin of the eletric polarizability cannot be attributed to the seagull terms in the Skyrme model.
1007.1151
Ulrich Ellwanger
Debottam Das and Ulrich Ellwanger
Light dark matter in the NMSSM: upper bounds on direct detection cross sections
17 pages, 3 figures
JHEP 1009:085,2010
10.1007/JHEP09(2010)085
LPT Orsay 10-53
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the Next-to-Minimal Supersymmetric Standard Model, a bino-like LSP can be as light as a few GeV and satisfy WMAP constraints on the dark matter relic density in the presence of a light CP-odd Higgs scalar. We study upper bounds on the direct detection cross sections for such a light LSP in the mass range 2-20 GeV ...
[ { "created": "Wed, 7 Jul 2010 14:45:13 GMT", "version": "v1" } ]
2014-11-21
[ [ "Das", "Debottam", "" ], [ "Ellwanger", "Ulrich", "" ] ]
In the Next-to-Minimal Supersymmetric Standard Model, a bino-like LSP can be as light as a few GeV and satisfy WMAP constraints on the dark matter relic density in the presence of a light CP-odd Higgs scalar. We study upper bounds on the direct detection cross sections for such a light LSP in the mass range 2-20 GeV in...
hep-ph/9710406
null
Gouranga C Nayak and V. Ravishankar (Dept. of Physics, Indian Institute of Technology, Kanpur. INDIA)
Pre-equilibrium evolution of quark-gluon plasma
22 pages Latex, 14 postscript figures; Minor changes are made: To appear in Physical Reveiw C
Phys.Rev.C58:356-364,1998
10.1103/PhysRevC.58.356
null
hep-ph nucl-th
null
We study the production and the evolution of quark-gluon plasma expected to be formed in ultra relativistic heavy-ion collisions, within the color flux-tube model. We introduce the gluonic component in the Boltzmann equation, which we solve in the phase space which is extended to include the SU(3) color degree of fre...
[ { "created": "Mon, 20 Oct 1997 11:07:31 GMT", "version": "v1" }, { "created": "Wed, 15 Apr 1998 05:02:40 GMT", "version": "v2" } ]
2008-11-26
[ [ "Nayak", "Gouranga C", "", "Dept. of Physics, Indian\n Institute of Technology, Kanpur. INDIA" ], [ "Ravishankar", "V.", "", "Dept. of Physics, Indian\n Institute of Technology, Kanpur. INDIA" ] ]
We study the production and the evolution of quark-gluon plasma expected to be formed in ultra relativistic heavy-ion collisions, within the color flux-tube model. We introduce the gluonic component in the Boltzmann equation, which we solve in the phase space which is extended to include the SU(3) color degree of freed...
1010.4623
Ming Zhen Zhou
Jian-Mei Hou, Chang-Qiao Du, Hong Chen, Ming-Zhen Zhou
Radiative vertex $VP\gamma$ and $\eta-\eta'$ mixing in light-cone sum rules
9 pages, 12 figures, 2 tables
Phys.Lett.B696:51-57,2011
10.1016/j.physletb.2010.12.002
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, we calculate radiative vertex $VP\gamma$ ($V=\phi,\omega,\rho$ and $P=\eta,\eta'$) by utilizing $\omega-\phi$ mixing scheme and taking into account the contributions of the three-particle twist-4 distribution amplitudes of the photon in QCD sum rules on light cone. According to experimental data of $V\r...
[ { "created": "Fri, 22 Oct 2010 06:53:32 GMT", "version": "v1" }, { "created": "Thu, 6 Jan 2011 02:13:31 GMT", "version": "v2" } ]
2011-01-27
[ [ "Hou", "Jian-Mei", "" ], [ "Du", "Chang-Qiao", "" ], [ "Chen", "Hong", "" ], [ "Zhou", "Ming-Zhen", "" ] ]
In this work, we calculate radiative vertex $VP\gamma$ ($V=\phi,\omega,\rho$ and $P=\eta,\eta'$) by utilizing $\omega-\phi$ mixing scheme and taking into account the contributions of the three-particle twist-4 distribution amplitudes of the photon in QCD sum rules on light cone. According to experimental data of $V\rig...
0903.0005
Rikkert Frederix
John M. Campbell, Rikkert Frederix, Fabio Maltoni, Francesco Tramontano
Next-to-leading-order predictions for t-channel single-top production at hadron colliders
5 pages, 5 figures. Updated results with more recent CTEQ6.6 PDF set. Included PDF uncertainties
Phys.Rev.Lett.102:182003,2009
10.1103/PhysRevLett.102.182003
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present the predictions at next-to-leading order (NLO) in the strong coupling for the single-top cross section in the t channel at the Tevatron and the LHC. Our calculation starts from the 2 -> 3 Born amplitude g q -> t bbar q', keeping the b-quark mass non-zero. A comparison is performed with a traditional NLO ca...
[ { "created": "Mon, 2 Mar 2009 11:18:31 GMT", "version": "v1" }, { "created": "Fri, 1 May 2009 13:44:09 GMT", "version": "v2" } ]
2009-06-30
[ [ "Campbell", "John M.", "" ], [ "Frederix", "Rikkert", "" ], [ "Maltoni", "Fabio", "" ], [ "Tramontano", "Francesco", "" ] ]
We present the predictions at next-to-leading order (NLO) in the strong coupling for the single-top cross section in the t channel at the Tevatron and the LHC. Our calculation starts from the 2 -> 3 Born amplitude g q -> t bbar q', keeping the b-quark mass non-zero. A comparison is performed with a traditional NLO calc...
1903.05101
Yonit Hochberg
Yonit Hochberg, Ilya Charaev, Sae-Woo Nam, Varun Verma, Marco Colangelo, Karl K. Berggren
Detecting Dark Matter with Superconducting Nanowires
7 pages, 4 figures
Phys. Rev. Lett. 123, 151802 (2019)
10.1103/PhysRevLett.123.151802
null
hep-ph cond-mat.supr-con hep-ex quant-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose the use of superconducting nanowires as both target and sensor for direct detection of sub-GeV dark matter. With excellent sensitivity to small energy deposits on electrons, and demonstrated low dark counts, such devices could be used to probe electron recoils from dark matter scattering and absorption pro...
[ { "created": "Tue, 12 Mar 2019 18:00:06 GMT", "version": "v1" } ]
2019-10-16
[ [ "Hochberg", "Yonit", "" ], [ "Charaev", "Ilya", "" ], [ "Nam", "Sae-Woo", "" ], [ "Verma", "Varun", "" ], [ "Colangelo", "Marco", "" ], [ "Berggren", "Karl K.", "" ] ]
We propose the use of superconducting nanowires as both target and sensor for direct detection of sub-GeV dark matter. With excellent sensitivity to small energy deposits on electrons, and demonstrated low dark counts, such devices could be used to probe electron recoils from dark matter scattering and absorption proce...
hep-ph/0004023
Yoav Achiman
Yoav Achiman and Carsten Merten
Large Quark Rotations, Neutrino mixing and Proton Decay
Latex2e file with 3 PS figures, minor corrections,the final version to be published in Nucl. Phys. B
Nucl.Phys. B584 (2000) 46-68
10.1016/S0550-3213(00)00353-9
WUB 00-03, TAUP 2627-2000
hep-ph
null
Right-handed (RH) rotations do not play a role in the Standard Model, and only the differences of the LH mixing angles are involved in ${\bf V}_{\scr \textrm{CKM}}$. This leads to the huge freedom in the fermionic mass matrices. However, that is no more true in extensions of the Standard Model. For example in GUTs la...
[ { "created": "Tue, 4 Apr 2000 13:17:09 GMT", "version": "v1" }, { "created": "Tue, 30 May 2000 11:40:22 GMT", "version": "v2" } ]
2009-10-31
[ [ "Achiman", "Yoav", "" ], [ "Merten", "Carsten", "" ] ]
Right-handed (RH) rotations do not play a role in the Standard Model, and only the differences of the LH mixing angles are involved in ${\bf V}_{\scr \textrm{CKM}}$. This leads to the huge freedom in the fermionic mass matrices. However, that is no more true in extensions of the Standard Model. For example in GUTs larg...
hep-ph/0305212
Keith Olive
J. Ellis (CERN), K.A. Olive (FTPI, U of Minnesota), Y. Santoso (FTPI, U of Minnesota), V.C. Spanos (FTPI, U of Minnesota)
Phenomenological Constraints on Patterns of Supersymmetry Breaking
17 pages LaTeX, 9 eps figures
Phys.Lett.B573:162-172,2003
10.1016/j.physletb.2003.08.056
CERN-TH/2003-107,UMN-TH-2201/03,FTPI-MINN-03/12
hep-ph astro-ph
null
Specific models of supersymmetry breaking predict relations between the trilinear and bilinear soft supersymmetry breaking parameters A_0 and B_0 at the input scale. In such models, the value of tan beta can be calculated as a function of the scalar masses m_0 and the gaugino masses m_{1/2}, which we assume to be uni...
[ { "created": "Tue, 20 May 2003 16:48:50 GMT", "version": "v1" } ]
2008-11-26
[ [ "Ellis", "J.", "", "CERN" ], [ "Olive", "K. A.", "", "FTPI, U of Minnesota" ], [ "Santoso", "Y.", "", "FTPI,\n U of Minnesota" ], [ "Spanos", "V. C.", "", "FTPI, U of Minnesota" ] ]
Specific models of supersymmetry breaking predict relations between the trilinear and bilinear soft supersymmetry breaking parameters A_0 and B_0 at the input scale. In such models, the value of tan beta can be calculated as a function of the scalar masses m_0 and the gaugino masses m_{1/2}, which we assume to be unive...
2101.08265
Anders Eller Thomsen Ph.D.
Anders Eller Thomsen
RGBeta: A Mathematica Package for the Evaluation of Renormalization Group $ \beta $-Functions
27 pages, 3 tables. The package, tutorial notebook, and sample files are available at https://github.com/aethomsen/RGBeta
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
In completely generic four-dimensional gauge-Yukawa theories, the renormalization group $ \beta $-functions are known to the 3-2-2 loop order in gauge, Yukawa, and quartic couplings, respectively. It does, however, remain difficult to apply these results to specific models without the use of dedicated computer tools....
[ { "created": "Wed, 20 Jan 2021 19:00:00 GMT", "version": "v1" } ]
2021-01-22
[ [ "Thomsen", "Anders Eller", "" ] ]
In completely generic four-dimensional gauge-Yukawa theories, the renormalization group $ \beta $-functions are known to the 3-2-2 loop order in gauge, Yukawa, and quartic couplings, respectively. It does, however, remain difficult to apply these results to specific models without the use of dedicated computer tools. W...
hep-ph/9905206
Palash Baran Pal
Avijit K. Ganguly, Sushan Konar, Palash B. Pal
Faraday effect : a field theoretical point of view
20 pages, Latex, uses axodraw.sty
Phys. Rev. D 60, 105014 (1999)
10.1103/PhysRevD.60.105014
SINP/TNP/99-15
hep-ph
null
We analyze the structure of the vacuum polarization tensor in the presence of a background electromagnetic field in a medium. We use various discrete symmetries and crossing symmetry to constrain the form factors obtained for the most general case. From these symmetry arguments, we show why the vacuum polarization te...
[ { "created": "Mon, 3 May 1999 11:18:04 GMT", "version": "v1" }, { "created": "Mon, 28 Jun 1999 04:51:09 GMT", "version": "v2" } ]
2016-08-25
[ [ "Ganguly", "Avijit K.", "" ], [ "Konar", "Sushan", "" ], [ "Pal", "Palash B.", "" ] ]
We analyze the structure of the vacuum polarization tensor in the presence of a background electromagnetic field in a medium. We use various discrete symmetries and crossing symmetry to constrain the form factors obtained for the most general case. From these symmetry arguments, we show why the vacuum polarization tens...
1409.6383
Yasuhiko Tsue
Y. Tsue (Kochi Univ., Japan), J. da Providencia (Univ. de Coimbra, Portugal), C. Providencia (Univ. de Coimbra, Portugal), M. Yamamura (Kansai Univ., Japan), H. Bohr (Danish Technical Univ., Denmark)
Spin Polarization versus Color-Flavor-Locking in High Density Quark Matter
23 pages, 4 figures
null
10.1093/ptep/ptu172
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is shown that spin polarization with respect to each flavor in three-flavor quark matter occurs instead of the color-flavor locking at high baryon density by using the Nambu-Jona-Lasinio model with four-point tensor-type interaction. Also, it is indicated that the order of phase transition between the color-flavor...
[ { "created": "Tue, 23 Sep 2014 01:26:36 GMT", "version": "v1" }, { "created": "Thu, 27 Nov 2014 02:03:04 GMT", "version": "v2" } ]
2015-01-21
[ [ "Tsue", "Y.", "", "Kochi Univ., Japan" ], [ "da Providencia", "J.", "", "Univ. de Coimbra,\n Portugal" ], [ "Providencia", "C.", "", "Univ. de Coimbra, Portugal" ], [ "Yamamura", "M.", "", "Kansai\n Univ., Japan" ], [ "Bohr", ...
It is shown that spin polarization with respect to each flavor in three-flavor quark matter occurs instead of the color-flavor locking at high baryon density by using the Nambu-Jona-Lasinio model with four-point tensor-type interaction. Also, it is indicated that the order of phase transition between the color-flavor l...
1509.05615
Lucien Heurtier
Otilia Ducu, Lucien Heurtier, and Julien Maurer
LHC signatures of a Z' mediator between dark matter and the SU(3) sector
17 pages, 6 figures
null
10.1007/JHEP03(2016)006
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, we study the experimental signatures of a gluophilic $Z'$ at the LHC, in particular through the analysis of three jets or four tops events. The $Z'$ couples to gluons through dimension six operators and the parameter space is constrained with experimental searches released at 7 and 8 $\mathrm{TeV}$ by ...
[ { "created": "Fri, 18 Sep 2015 13:16:34 GMT", "version": "v1" } ]
2016-03-23
[ [ "Ducu", "Otilia", "" ], [ "Heurtier", "Lucien", "" ], [ "Maurer", "Julien", "" ] ]
In this paper, we study the experimental signatures of a gluophilic $Z'$ at the LHC, in particular through the analysis of three jets or four tops events. The $Z'$ couples to gluons through dimension six operators and the parameter space is constrained with experimental searches released at 7 and 8 $\mathrm{TeV}$ by CM...
1303.3271
Matthew Reece
JiJi Fan, Andrey Katz, Lisa Randall, Matthew Reece
A Dark-Disk Universe
Concise companion to arXiv:1303.1521; v2: published in PRL, references added
null
10.1103/PhysRevLett.110.211302
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We point out that current constraints on dark matter imply only that the majority of dark matter is cold and collisionless. A subdominant fraction of dark matter could have much stronger interactions. In particular, it could interact in a manner that dissipates energy, thereby cooling into a rotationally-supported di...
[ { "created": "Wed, 13 Mar 2013 20:00:02 GMT", "version": "v1" }, { "created": "Sat, 3 Aug 2013 17:53:40 GMT", "version": "v2" } ]
2013-08-06
[ [ "Fan", "JiJi", "" ], [ "Katz", "Andrey", "" ], [ "Randall", "Lisa", "" ], [ "Reece", "Matthew", "" ] ]
We point out that current constraints on dark matter imply only that the majority of dark matter is cold and collisionless. A subdominant fraction of dark matter could have much stronger interactions. In particular, it could interact in a manner that dissipates energy, thereby cooling into a rotationally-supported disk...
hep-ph/9604409
W. S. Hou
George Wei-Shu Hou (National Taiwan University)
Like Sign Top Pair Production via $e^+e^-\to h^0A^0 \to tt\bar c\bar c$
10 pages, latex, no figures. Talk presented at LCWS95, September 1995, Morioka-Appi, Japan
null
null
NTUTH-96-02
hep-ph
null
We discuss the possibility and likelihood that one may observe {\it like sign} top quark pair production at the Linear Collider. In general two Higgs models, flavor changing couplings involving top quark could be quite sizable. Exotic neutral Higgs bosons may decay dominantly via $t\bar c$ or $\bar tc$ channels. At t...
[ { "created": "Fri, 26 Apr 1996 20:11:33 GMT", "version": "v1" } ]
2007-05-23
[ [ "Hou", "George Wei-Shu", "", "National Taiwan University" ] ]
We discuss the possibility and likelihood that one may observe {\it like sign} top quark pair production at the Linear Collider. In general two Higgs models, flavor changing couplings involving top quark could be quite sizable. Exotic neutral Higgs bosons may decay dominantly via $t\bar c$ or $\bar tc$ channels. At the...
2002.03013
Howard Baer
Howard Baer, Vernon Barger, Shadman Salam, Dibyashree Sengupta and Kuver Sinha
Midi-review: Status of weak scale supersymmetry after LHC Run 2 and ton-scale noble liquid WIMP searches
47 pages; version 2 includes typo fixes and some added discussion; version 3 contains minor re-wording on weak scale limits from Agrawal et al
null
10.1140/epjst/e2020-000020-x
OU-HEP-191231
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
While LHC has discovered a very Standard Model-like Higgs boson of mass m_h~ 125 GeV, no solid signal for physics beyond the Standard Model has emerged so far at LHC or at WIMP seach experiments. For the case of weak scale supersymmetry (SUSY), LHC has found rather generally that gluinos are beyond about 2.2 TeV whil...
[ { "created": "Fri, 7 Feb 2020 21:15:57 GMT", "version": "v1" }, { "created": "Thu, 28 May 2020 18:27:54 GMT", "version": "v2" }, { "created": "Tue, 10 Nov 2020 16:35:08 GMT", "version": "v3" } ]
2020-12-30
[ [ "Baer", "Howard", "" ], [ "Barger", "Vernon", "" ], [ "Salam", "Shadman", "" ], [ "Sengupta", "Dibyashree", "" ], [ "Sinha", "Kuver", "" ] ]
While LHC has discovered a very Standard Model-like Higgs boson of mass m_h~ 125 GeV, no solid signal for physics beyond the Standard Model has emerged so far at LHC or at WIMP seach experiments. For the case of weak scale supersymmetry (SUSY), LHC has found rather generally that gluinos are beyond about 2.2 TeV whilst...
1204.5477
Alexander Kartavtsev
F. Bezrukov, A. Kartavtsev, M. Lindner
Leptogenesis in models with keV sterile neutrino dark matter
6 pages, 1 figure
null
10.1088/0954-3899/40/9/095202
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze leptogenesis in gauge extensions of the Standard Model with keV sterile neutrino dark matter. We find that both the observed dark matter abundance and the correct baryon asymmetry of the Universe can simultaneously emerge in these models. Both the dark matter abundance and the leptogenesis are controlled b...
[ { "created": "Tue, 24 Apr 2012 20:00:03 GMT", "version": "v1" }, { "created": "Wed, 31 Jul 2013 15:29:11 GMT", "version": "v2" } ]
2015-06-04
[ [ "Bezrukov", "F.", "" ], [ "Kartavtsev", "A.", "" ], [ "Lindner", "M.", "" ] ]
We analyze leptogenesis in gauge extensions of the Standard Model with keV sterile neutrino dark matter. We find that both the observed dark matter abundance and the correct baryon asymmetry of the Universe can simultaneously emerge in these models. Both the dark matter abundance and the leptogenesis are controlled by ...
0905.2097
Neda Sadooghi
Neda Sadooghi
Chiral MHD description of a perfect magnetized QGP using the effective NJL model in a strong magnetic field
40 pages, 9 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
To study the effect of a strong magnetic field $B$ on the sound velocity $v_{s}$ of plane waves propagating in a strongly magnetized quark-gluon plasma (QGP), a chiral magnetohydrodynamical (MHD) description of a perfect (non-dissipative) QGP exhibiting dynamical chiral symmetry breaking (D$\chi$SB) is developed usin...
[ { "created": "Wed, 13 May 2009 18:20:16 GMT", "version": "v1" } ]
2009-05-14
[ [ "Sadooghi", "Neda", "" ] ]
To study the effect of a strong magnetic field $B$ on the sound velocity $v_{s}$ of plane waves propagating in a strongly magnetized quark-gluon plasma (QGP), a chiral magnetohydrodynamical (MHD) description of a perfect (non-dissipative) QGP exhibiting dynamical chiral symmetry breaking (D$\chi$SB) is developed using ...
2108.04285
Drew Backhouse
Drew Backhouse
The Phenomenological Motivation of Axions: A Review
42 pages
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Setting aside anthropic arguments, there is no reason for CP symmetry to be obeyed within the theory of quantum chromodynamics. However, no such violation of CP symmetry has ever been observed in a strongly interacting experiment. This is known as the strong CP problem which, in its simplest manifestations, can be qu...
[ { "created": "Mon, 9 Aug 2021 18:21:29 GMT", "version": "v1" } ]
2021-08-11
[ [ "Backhouse", "Drew", "" ] ]
Setting aside anthropic arguments, there is no reason for CP symmetry to be obeyed within the theory of quantum chromodynamics. However, no such violation of CP symmetry has ever been observed in a strongly interacting experiment. This is known as the strong CP problem which, in its simplest manifestations, can be quan...