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1404.2372
Antonio Ortiz
Eleazar Cuautle, Raul Jimenez, Ivonne Maldonado, Antonio Ortiz, Guy Paic and Edgar Perez
Disentangling the soft and hard components of the pp collisions using the sphero(i)city approach
4 pages, 4 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A new method to extract information from the pp data is proposed. The approach is based on the use of the event structure variables: sphericity and spherocity, to split the data into enhanced soft and hard processes samples corresponding to events with large and low numbers of multi-parton interactions, respectively....
[ { "created": "Wed, 9 Apr 2014 05:52:00 GMT", "version": "v1" } ]
2014-04-10
[ [ "Cuautle", "Eleazar", "" ], [ "Jimenez", "Raul", "" ], [ "Maldonado", "Ivonne", "" ], [ "Ortiz", "Antonio", "" ], [ "Paic", "Guy", "" ], [ "Perez", "Edgar", "" ] ]
A new method to extract information from the pp data is proposed. The approach is based on the use of the event structure variables: sphericity and spherocity, to split the data into enhanced soft and hard processes samples corresponding to events with large and low numbers of multi-parton interactions, respectively. T...
2202.10146
Anatoly Kotikov Vassilievich
A.V. Kotikov, V.G. Krivokhizhin, B.G. Shaikhatdenov
alpha_s in DIS scheme
7 pages
null
10.1134/S0021364022100411
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Deep inelastic scattering data on $F_2$ structure function from various fixed-target experiments were analyzed in a nonsinglet approximation in the MSbar and DIS scheme. The study of high statistics deep inelastic scattering data provided by BCDMS, SLAC and NMC collaborations, was carried out using a combined analysi...
[ { "created": "Mon, 21 Feb 2022 11:48:23 GMT", "version": "v1" }, { "created": "Mon, 28 Mar 2022 14:54:51 GMT", "version": "v2" } ]
2022-04-27
[ [ "Kotikov", "A. V.", "" ], [ "Krivokhizhin", "V. G.", "" ], [ "Shaikhatdenov", "B. G.", "" ] ]
Deep inelastic scattering data on $F_2$ structure function from various fixed-target experiments were analyzed in a nonsinglet approximation in the MSbar and DIS scheme. The study of high statistics deep inelastic scattering data provided by BCDMS, SLAC and NMC collaborations, was carried out using a combined analysis....
hep-ph/0601177
Pasquini Barbara
B. Pasquini and S. Boffi (Pavia U. and INFN Pavia)
Virtual meson cloud of the nucleon and generalized parton distributions
37 pages, 9 figures, minor corrections, and figure 3 replaced; version to appear in Phys. Rev. D
Phys.Rev.D73:094001,2006
10.1103/PhysRevD.73.094001
null
hep-ph
null
We present the general formalism required to derive generalized parton distributions within a convolution model where the bare nucleon is dressed by its virtual meson cloud. In the one-meson approximation the Fock states of the physical nucleon are expanded in a series involving a bare nucleon and two-particle, meson...
[ { "created": "Fri, 20 Jan 2006 16:11:52 GMT", "version": "v1" }, { "created": "Wed, 15 Mar 2006 19:23:09 GMT", "version": "v2" } ]
2008-11-26
[ [ "Pasquini", "B.", "", "Pavia U. and INFN Pavia" ], [ "Boffi", "S.", "", "Pavia U. and INFN Pavia" ] ]
We present the general formalism required to derive generalized parton distributions within a convolution model where the bare nucleon is dressed by its virtual meson cloud. In the one-meson approximation the Fock states of the physical nucleon are expanded in a series involving a bare nucleon and two-particle, meson-b...
hep-ph/0402137
Larry McLerran
Larry McLerran
What is the Evidence for the Color Glass Condensate?
null
null
null
null
hep-ph
null
I introduce the concept of the Color Glass Condensate. I review data from HERA and RHIC which suggest that such a universal form of matter has been found.
[ { "created": "Thu, 12 Feb 2004 22:46:47 GMT", "version": "v1" }, { "created": "Tue, 17 Feb 2004 18:34:01 GMT", "version": "v2" } ]
2007-05-23
[ [ "McLerran", "Larry", "" ] ]
I introduce the concept of the Color Glass Condensate. I review data from HERA and RHIC which suggest that such a universal form of matter has been found.
0807.0650
Kim Maltman
K. Maltman and T. Yavin
Alpha_s(M_Z) from hadronic tau decays
30 pages, 3 figures. Published version. Minor rearrangements and subdivision of longer sections into subsections for ease of reading
Phys.Rev.D78:094020,2008
10.1103/PhysRevD.78.094020
YU-SPPN-KM-08/01
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We perform an extraction of alpha_s based on sum rules involving isovector hadronic tau decay data. The particular sum rules employed are constructed specifically to suppress contributions associated with poorly known higher dimension condensates, and hence reduce theoretical systematic uncertainties associated with ...
[ { "created": "Thu, 3 Jul 2008 21:20:47 GMT", "version": "v1" }, { "created": "Sun, 7 Jun 2009 19:27:24 GMT", "version": "v2" } ]
2009-06-07
[ [ "Maltman", "K.", "" ], [ "Yavin", "T.", "" ] ]
We perform an extraction of alpha_s based on sum rules involving isovector hadronic tau decay data. The particular sum rules employed are constructed specifically to suppress contributions associated with poorly known higher dimension condensates, and hence reduce theoretical systematic uncertainties associated with th...
2212.08478
Sandra Robles
Sandra Robles
Improved Treatment of Dark Matter Capture in Compact Stars
9 pages, 2 figures. Submitted to SciPost Physics Proceedings: 14th International Conference on Identification of Dark Matter (IDM) 2022
SciPost Phys. Proc. 12, 057 (2023)
10.21468/SciPostPhysProc.12.057
KCL-PH-TH/2022-63
hep-ph astro-ph.CO astro-ph.HE astro-ph.SR
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Compact stellar objects are promising cosmic laboratories to test the nature of dark matter (DM). DM captured by the strong gravitational field of these stellar remnants transfers kinetic energy to the star during the collision. This can have various effects such as anomalous heating of old compact stars. The proper ...
[ { "created": "Fri, 16 Dec 2022 13:45:38 GMT", "version": "v1" } ]
2023-07-07
[ [ "Robles", "Sandra", "" ] ]
Compact stellar objects are promising cosmic laboratories to test the nature of dark matter (DM). DM captured by the strong gravitational field of these stellar remnants transfers kinetic energy to the star during the collision. This can have various effects such as anomalous heating of old compact stars. The proper ca...
hep-ph/0108154
Xiong Zhao-hua
J.Hunag (Henan Nanyang Normal College, Nanyang, China), Z.Xiong (ITP.,Beijing) and G.Lu (Henan Normal University, Xinxiang, China)
Top Quark Pair Production at $e^+e^-$ Colliders in the Topcolor-assisted Technicolor Model
8 pages, 3 figures, to appear in Comm.Theor.Phys
Commun.Theor.Phys.37:209-214,2002
null
null
hep-ph
null
In the framework of topcolor-assisted technicolor model we calculate the contributions from the pseudo Goldstone bosons and new gauge bosons to $e^+e^- \to t\bar{t}$. We find that, for reasonable ranges of the parameters, the pseudo Goldstone bosons afford dominate contribution, the correction arising from new gauge ...
[ { "created": "Mon, 20 Aug 2001 02:35:36 GMT", "version": "v1" } ]
2008-11-26
[ [ "Hunag", "J.", "", "Henan Nanyang Normal College, Nanyang, China" ], [ "Xiong", "Z.", "", "ITP.,Beijing" ], [ "Lu", "G.", "", "Henan Normal University, Xinxiang, China" ] ]
In the framework of topcolor-assisted technicolor model we calculate the contributions from the pseudo Goldstone bosons and new gauge bosons to $e^+e^- \to t\bar{t}$. We find that, for reasonable ranges of the parameters, the pseudo Goldstone bosons afford dominate contribution, the correction arising from new gauge bo...
hep-ph/0101167
Markov
Yu.A. Markov, M.A. Markova
Nonlinear Landau damping of a plasmino in the quark-gluon plasma
32 pages, REVTeX4, 5 eps figures, substantially revised, version to appear in Phys. Rev. D
Phys.Rev. D64 (2001) 105009
10.1103/PhysRevD.64.105009
ISDCT-01-1
hep-ph
null
On the basis of the Blaizot-Iancu equations, which are a local formulation of the hard thermal loop (HTL) equations of motion for soft fluctuating quark and gluon fields and their induced sources, the coupled kinetic equations for plasminos and plasmons are obtained. The equality of matrix elements for nonlinear scat...
[ { "created": "Tue, 16 Jan 2001 01:57:08 GMT", "version": "v1" }, { "created": "Fri, 28 Sep 2001 08:07:04 GMT", "version": "v2" } ]
2009-11-07
[ [ "Markov", "Yu. A.", "" ], [ "Markova", "M. A.", "" ] ]
On the basis of the Blaizot-Iancu equations, which are a local formulation of the hard thermal loop (HTL) equations of motion for soft fluctuating quark and gluon fields and their induced sources, the coupled kinetic equations for plasminos and plasmons are obtained. The equality of matrix elements for nonlinear scatte...
hep-ph/9906406
null
B.V.Geshkenbein, B.L.Ioffe
Improvement of perturbation theory in QCD for e^+e^- -> hadrons and the problem of \alpha_s freezing
4 pages, latex; 2 references are added
JETP Lett. 70 (1999) 161-164
10.1134/1.568146
ITEP-99-16
hep-ph
null
We develope the method of improvement of perturbative theory in QCD, applied to any polarization operator. The case of polarization operator \Pi(q^2), corresponding to the process e^+e^- -> hadrons is considered in details. Using the analytical properties of \Pi(q^2) and perturbative expansion of \Pi(q^2) at q^2<0, I...
[ { "created": "Thu, 17 Jun 1999 09:09:25 GMT", "version": "v1" }, { "created": "Tue, 29 Jun 1999 02:53:55 GMT", "version": "v2" } ]
2009-10-31
[ [ "Geshkenbein", "B. V.", "" ], [ "Ioffe", "B. L.", "" ] ]
We develope the method of improvement of perturbative theory in QCD, applied to any polarization operator. The case of polarization operator \Pi(q^2), corresponding to the process e^+e^- -> hadrons is considered in details. Using the analytical properties of \Pi(q^2) and perturbative expansion of \Pi(q^2) at q^2<0, Im\...
2402.06141
Yinzhen Xu
Yin-Zhen Xu
The electromagnetic form factors of heavy-light pseudo-scalar and vector mesons
null
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We systematically investigate the electromagnetic form factors of heavy-light pseudo-scalar and vector mesons within the Dyson-Schwinger/Bethe-Salpeter equations framework for the first time. It is found that the charge radius of vector meson is larger than that of its pseudo-scalar counterpart. In heavy-light system...
[ { "created": "Fri, 9 Feb 2024 02:30:41 GMT", "version": "v1" } ]
2024-02-12
[ [ "Xu", "Yin-Zhen", "" ] ]
We systematically investigate the electromagnetic form factors of heavy-light pseudo-scalar and vector mesons within the Dyson-Schwinger/Bethe-Salpeter equations framework for the first time. It is found that the charge radius of vector meson is larger than that of its pseudo-scalar counterpart. In heavy-light systems,...
1912.02870
Kalle Ala-Mattinen
Kalle Ala-Mattinen, Kimmo Kainulainen
Precision calculations of dark matter relic abundance
22 pages, 16 figures; Added references and appedix C with further accuracy checks, updated fig. 6, matches with version accepted to JCAP
JCAP 09 (2020) 040
10.1088/1475-7516/2020/09/040
CERN-TH-2019-214
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The dark matter annihilation channels sometimes involve sharp resonances. In such cases the usual momentum averaged approximations for computing the DM abundance may not be accurate. We develop an easily accessible momentum dependent framework for computing the DM abundance accurately and efficiently near such featur...
[ { "created": "Thu, 5 Dec 2019 20:52:53 GMT", "version": "v1" }, { "created": "Mon, 14 Sep 2020 08:02:37 GMT", "version": "v2" } ]
2020-09-28
[ [ "Ala-Mattinen", "Kalle", "" ], [ "Kainulainen", "Kimmo", "" ] ]
The dark matter annihilation channels sometimes involve sharp resonances. In such cases the usual momentum averaged approximations for computing the DM abundance may not be accurate. We develop an easily accessible momentum dependent framework for computing the DM abundance accurately and efficiently near such features...
hep-ph/9908248
William Brown
William E. Brown, James T. Liu, and Hai-cang Ren
On the Perturbative Nature of Color Superconductivity
13 pages, 3 figures, revtex, details and discussion expanded
Phys.Rev. D61 (2000) 114012
10.1103/PhysRevD.61.114012
RU-9-99B
hep-ph hep-th nucl-th
null
Color superconductivity is a possible phase of high density QCD. We present a systematic derivation of the transition temperature, T_C, from the QCD Lagrangian through study of the di-quark proper vertex. With this approach, we confirm the dependence of T_C on the coupling g, namely $T_C \sim \mu g^{-5} e^{-\kappa/g}...
[ { "created": "Wed, 4 Aug 1999 21:50:17 GMT", "version": "v1" }, { "created": "Thu, 28 Oct 1999 18:32:55 GMT", "version": "v2" } ]
2009-10-31
[ [ "Brown", "William E.", "" ], [ "Liu", "James T.", "" ], [ "Ren", "Hai-cang", "" ] ]
Color superconductivity is a possible phase of high density QCD. We present a systematic derivation of the transition temperature, T_C, from the QCD Lagrangian through study of the di-quark proper vertex. With this approach, we confirm the dependence of T_C on the coupling g, namely $T_C \sim \mu g^{-5} e^{-\kappa/g}$,...
hep-ph/0111041
Alan Kostelecky
Alan Kostelecky
CPT and Lorentz Violation in Kaons and Other Systems
8 pages, invited talk at KAON 2001, Pisa, Italy, June 2001
null
null
IUHET 439, July 2001
hep-ph
null
This talk provides a status report on CPT violation in neutral-meson oscillations, focusing on implications of the CPT- and Lorentz-violating standard-model extension.
[ { "created": "Mon, 5 Nov 2001 14:06:35 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kostelecky", "Alan", "" ] ]
This talk provides a status report on CPT violation in neutral-meson oscillations, focusing on implications of the CPT- and Lorentz-violating standard-model extension.
1112.6240
Pran Nath Pandita
P. N. Pandita and Chandradew Sharma
Radiative neutralino production in low energy supersymmetric Models. II. The case of beam polarization
20 pages, 16 figures, 13 tables; latex problem fixed
null
10.1103/PhysRevD.85.015021
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the production of the lightest neutralinos in the radiative process $e^+e^- \to \tilde\chi^0_1 \tilde\chi^0_1\gamma$ in low energy supersymmetric models for the International Linear Collider energies with longitudinally polarized electron and positron beams. For this purpose we consider the case of nonminima...
[ { "created": "Thu, 29 Dec 2011 07:09:03 GMT", "version": "v1" }, { "created": "Sun, 1 Jan 2012 10:54:03 GMT", "version": "v2" } ]
2015-06-03
[ [ "Pandita", "P. N.", "" ], [ "Sharma", "Chandradew", "" ] ]
We study the production of the lightest neutralinos in the radiative process $e^+e^- \to \tilde\chi^0_1 \tilde\chi^0_1\gamma$ in low energy supersymmetric models for the International Linear Collider energies with longitudinally polarized electron and positron beams. For this purpose we consider the case of nonminimal ...
hep-ph/9903203
Smaragda Lola
Smaragda Lola (CERN)
Aspects of Neutrino Masses and Lepton-Number Violation in the light of the Super-Kamiokande data
15 pages, 1 figure. Contribution to the 1998 Corfu Summer Institute on Elementary Particle Physics, to appear in JHEP proceedings
null
null
CERN-TH/99-40
hep-ph
null
We discuss aspects of neutrino masses and lepton-number violation, in the light of the observations of Super-Kamiokande. As a first step, we use the data from various experiments, in order to obtain a phenomenological understanding of neutrino mass textures. We then investigate how the required patterns of neutrino m...
[ { "created": "Mon, 1 Mar 1999 16:41:18 GMT", "version": "v1" } ]
2007-05-23
[ [ "Lola", "Smaragda", "", "CERN" ] ]
We discuss aspects of neutrino masses and lepton-number violation, in the light of the observations of Super-Kamiokande. As a first step, we use the data from various experiments, in order to obtain a phenomenological understanding of neutrino mass textures. We then investigate how the required patterns of neutrino mas...
2403.01953
Victor Goncalves
Laura Duarte, Victor P. Goncalves, Daniel E. Martins, T\'essio B. de Melo
Single charged Higgs pair production in exclusive processes at the LHC
14 pages, 3 figures, 3 tables
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The production of a single charged Higgs boson pair by photon - photon interactions in $pp$ collisions at the LHC is investigated in this exploratory study. We focus on the exclusive production, which is characterized by intact protons and two - rapidity gaps in the final state, and assume the type - I two - Higgs - ...
[ { "created": "Mon, 4 Mar 2024 11:48:59 GMT", "version": "v1" } ]
2024-03-05
[ [ "Duarte", "Laura", "" ], [ "Goncalves", "Victor P.", "" ], [ "Martins", "Daniel E.", "" ], [ "de Melo", "Téssio B.", "" ] ]
The production of a single charged Higgs boson pair by photon - photon interactions in $pp$ collisions at the LHC is investigated in this exploratory study. We focus on the exclusive production, which is characterized by intact protons and two - rapidity gaps in the final state, and assume the type - I two - Higgs - do...
0906.0362
Tim M. P. Tait
Dan Hooper and Tim M.P. Tait
Extended MSSM Neutralinos as the Source of the PAMELA Positron Excess
null
Phys.Rev.D80:055028,2009
10.1103/PhysRevD.80.055028
ANL-HEP-PR-09-36; FERMILAB-PUB-09-258-A; NUHEP-TH/09-07
hep-ph astro-ph.HE hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider a scenario within the Minimal Supersymmetric Standard Model extended by a singlet chiral superfield, in which neutralino dark matter annihilates to light singlet-like Higgs bosons, which proceed to decay to either electron-positron or muon-antimuon pairs. Unlike neutralino annihilations in the MSSM, this ...
[ { "created": "Mon, 1 Jun 2009 20:00:29 GMT", "version": "v1" } ]
2009-10-29
[ [ "Hooper", "Dan", "" ], [ "Tait", "Tim M. P.", "" ] ]
We consider a scenario within the Minimal Supersymmetric Standard Model extended by a singlet chiral superfield, in which neutralino dark matter annihilates to light singlet-like Higgs bosons, which proceed to decay to either electron-positron or muon-antimuon pairs. Unlike neutralino annihilations in the MSSM, this mo...
1409.3760
David Marzocca
David Marzocca and Andrea Romanino
Stable fermion mass matrices and the charged lepton contribution to neutrino mixing
27 pages, 1 figure
null
10.1007/JHEP11(2014)159
SISSA 44/2014/FISI
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the general properties of hierarchical fermion mass matrices in which the small eigenvalues are stable with respect to perturbations of the matrix entries and we consider specific applications to the charged lepton contribution to neutrino mixing. In particular, we show that the latter can account for the wh...
[ { "created": "Fri, 12 Sep 2014 15:04:13 GMT", "version": "v1" } ]
2015-06-22
[ [ "Marzocca", "David", "" ], [ "Romanino", "Andrea", "" ] ]
We study the general properties of hierarchical fermion mass matrices in which the small eigenvalues are stable with respect to perturbations of the matrix entries and we consider specific applications to the charged lepton contribution to neutrino mixing. In particular, we show that the latter can account for the whol...
hep-ph/9311347
Valeri Dvoeglazov
Valeri V. Dvoeglazov and Sergei V. Khudyakov
Gluonium as Bound State of Massive Gluons Described by the Joos-Weinberg Wave Functions
LaTeX file. 15 pp., 1 postscript figure
Hadronic J.21:523,1998
null
IFUNAM FT-93-35
hep-ph
null
On the basis of the Kadyshevsky equal-time (quasipotential) approach, a set of partial-wave equations is derived for the wave function of a gluonium, a bound state of two gluons. The field operators of constituent gluons are considered as six component quantities according to the Joos-Weinberg $2(2S+1)$- component ap...
[ { "created": "Tue, 23 Nov 1993 19:34:09 GMT", "version": "v1" } ]
2010-11-01
[ [ "Dvoeglazov", "Valeri V.", "" ], [ "Khudyakov", "Sergei V.", "" ] ]
On the basis of the Kadyshevsky equal-time (quasipotential) approach, a set of partial-wave equations is derived for the wave function of a gluonium, a bound state of two gluons. The field operators of constituent gluons are considered as six component quantities according to the Joos-Weinberg $2(2S+1)$- component appr...
2004.09779
Li-Sheng Geng
Tian-Wei Wu, Ming-Zhu Liu, Li-Sheng Geng, Emiko Hiyama, Manuel Pavon Valderrama, Wen-Ling Wang
Quadruply charmed baryons as heavy quark symmetry partners of the $D_{s0}^*(2317)$
12 pages, 2 figures
null
10.1140/epjc/s10052-020-08483-w
null
hep-ph hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Both unitary chiral theories and lattice QCD simulations show that the $DK$ interaction is attractive and can form a bound state, namely, $D^*_{s0}(2317)$. Assuming the validity of the heavy antiquark-diquark symmetry (HADS), the $\Xi_{cc}\bar{K}$ interaction is the same as the $DK$ interaction, which implies the exi...
[ { "created": "Tue, 21 Apr 2020 07:15:46 GMT", "version": "v1" } ]
2020-10-28
[ [ "Wu", "Tian-Wei", "" ], [ "Liu", "Ming-Zhu", "" ], [ "Geng", "Li-Sheng", "" ], [ "Hiyama", "Emiko", "" ], [ "Valderrama", "Manuel Pavon", "" ], [ "Wang", "Wen-Ling", "" ] ]
Both unitary chiral theories and lattice QCD simulations show that the $DK$ interaction is attractive and can form a bound state, namely, $D^*_{s0}(2317)$. Assuming the validity of the heavy antiquark-diquark symmetry (HADS), the $\Xi_{cc}\bar{K}$ interaction is the same as the $DK$ interaction, which implies the exist...
hep-ph/9608222
Kiwoon Choi
K. Choi, E. J. Chun and J. E. Kim
Cosmological Implications of Radiatively Generated Axion Scale
15 pages, Latex
Phys.Lett.B403:209-217,1997
10.1016/S0370-2693(97)00465-6
KAIST-TH 12/96, CBNU-TH 960707, SNUTP 96-074
hep-ph
null
We study cosmological implications of supersymmetric axion models in which the axion scale is generated radiatively. Such models lead to the so-called thermal inflation and subsequent reheating should be constrained not to yield a too large axion energy density at the time of nucleosynthesis. We examine how plausible...
[ { "created": "Sat, 3 Aug 1996 06:36:23 GMT", "version": "v1" } ]
2014-11-17
[ [ "Choi", "K.", "" ], [ "Chun", "E. J.", "" ], [ "Kim", "J. E.", "" ] ]
We study cosmological implications of supersymmetric axion models in which the axion scale is generated radiatively. Such models lead to the so-called thermal inflation and subsequent reheating should be constrained not to yield a too large axion energy density at the time of nucleosynthesis. We examine how plausible i...
hep-ph/0702049
D. V. Ahluwalia-Khalilova
D. V. Ahluwalia-Khalilova, Alex B. Nielsen (University of Canterbury, NZ)
MiniBooNE and a (CP)^2 = -1 sterile neutrino
Mod. Phys. Lett. A (in press, 8 pages)
Mod.Phys.Lett.A22:1301-1307,2007
10.1142/S021773230702364X
null
hep-ph hep-ex
null
It has been taken as granted that the observation of two independent mass-squared differences necessarily fixes the number of underlying mass eigenstates as three, and that the addition of a sterile neutrino provides an additional mass-squared difference. The purpose of this Letter is to argue that if one considers a...
[ { "created": "Mon, 5 Feb 2007 00:28:43 GMT", "version": "v1" }, { "created": "Fri, 23 Feb 2007 04:34:49 GMT", "version": "v2" } ]
2008-11-26
[ [ "Ahluwalia-Khalilova", "D. V.", "", "University of Canterbury,\n NZ" ], [ "Nielsen", "Alex B.", "", "University of Canterbury,\n NZ" ] ]
It has been taken as granted that the observation of two independent mass-squared differences necessarily fixes the number of underlying mass eigenstates as three, and that the addition of a sterile neutrino provides an additional mass-squared difference. The purpose of this Letter is to argue that if one considers a s...
2001.11788
Shubhalaxmi Rath
Shubhalaxmi Rath and Binoy Krishna Patra
Momentum and its affiliated transport coefficients for a hot QCD matter in a strong magnetic field
47 pages, 7 figures
Phys. Rev. D 102, 036011 (2020)
10.1103/PhysRevD.102.036011
null
hep-ph hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We have studied the effects of anisotropies on the momentum transport in a QCD matter by shear ($\eta$) and bulk ($\zeta$) viscosities. The anisotropies arise either by the strong magnetic field or by the preferential expansion. This study helps to understand the fluidity and location of transition point of matter th...
[ { "created": "Fri, 31 Jan 2020 12:17:06 GMT", "version": "v1" }, { "created": "Wed, 8 Jul 2020 14:03:58 GMT", "version": "v2" } ]
2020-08-19
[ [ "Rath", "Shubhalaxmi", "" ], [ "Patra", "Binoy Krishna", "" ] ]
We have studied the effects of anisotropies on the momentum transport in a QCD matter by shear ($\eta$) and bulk ($\zeta$) viscosities. The anisotropies arise either by the strong magnetic field or by the preferential expansion. This study helps to understand the fluidity and location of transition point of matter thro...
hep-ph/9511301
null
Keiichi Akama
Compositeness Condition at the Next-to-Leading Order in the Nambu-Jona-Lasinio Model
11 pages, revtex, 1 figure
Phys.Rev.Lett. 76 (1996) 184-187
10.1103/PhysRevLett.76.184
null
hep-ph
null
We investigate the compositeness condition in four dimensions at the non-trivial order (next-to-leading order in $1/N$ with the number $N$ of the colors), taking the Nambu-Jona-Lasinio model as an example. In spite of its non-renormalizability, the compositeness condition can be successfully derived and solved in com...
[ { "created": "Mon, 13 Nov 1995 08:48:26 GMT", "version": "v1" } ]
2009-10-28
[ [ "Akama", "Keiichi", "" ] ]
We investigate the compositeness condition in four dimensions at the non-trivial order (next-to-leading order in $1/N$ with the number $N$ of the colors), taking the Nambu-Jona-Lasinio model as an example. In spite of its non-renormalizability, the compositeness condition can be successfully derived and solved in compa...
hep-ph/9808464
Stefan Kretzer
S. Kretzer (Univ. Dortmund)
Charm Production and Fragmentation in Charged Current DIS
4 pages, LaTeX, 4 figures, uses epsfig and espcrc2 style
Nucl.Phys.Proc.Suppl. 74 (1999) 239-242
10.1016/S0920-5632(99)00171-1
Talk given at the International Euroconference on Quantum Chromodynamics (QCD 98), Montpellier, France, 2-8 Jul 1998
hep-ph
null
In charged current deep inelastic scattering charm is dominantly produced in scattering events on strange quarks, thereby allowing for an experimental determination of the nucleon's strange sea density. A measurement of the energy spectrum of final state charm fragments (D-mesons) determines the charm fragmentation f...
[ { "created": "Fri, 28 Aug 1998 19:14:16 GMT", "version": "v1" } ]
2009-10-31
[ [ "Kretzer", "S.", "", "Univ. Dortmund" ] ]
In charged current deep inelastic scattering charm is dominantly produced in scattering events on strange quarks, thereby allowing for an experimental determination of the nucleon's strange sea density. A measurement of the energy spectrum of final state charm fragments (D-mesons) determines the charm fragmentation fun...
2110.09900
Marco Danilo Claudio Torri
Marco Danilo Claudio Torri, Lorenzo Caccianiga, Armando di Matteo, Andrea Maino, Lino Miramonti
Predictions of Ultra-High Energy Cosmic Ray Propagation in the Context of Homogeneously Modified Special Relativity
null
Symmetry 2020, 12(12), 1961
10.3390/sym12121961
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Ultra high energy cosmic rays (UHECRs) may interact with photon backgrounds and thus the universe is opaque to their propagation. Many Lorentz Invariance Violation (LIV) theories predict a dilation of the expected horizon from which UHECRs can arrive to Earth, in some case even making the interaction probability negl...
[ { "created": "Tue, 19 Oct 2021 12:13:58 GMT", "version": "v1" } ]
2021-10-20
[ [ "Torri", "Marco Danilo Claudio", "" ], [ "Caccianiga", "Lorenzo", "" ], [ "di Matteo", "Armando", "" ], [ "Maino", "Andrea", "" ], [ "Miramonti", "Lino", "" ] ]
Ultra high energy cosmic rays (UHECRs) may interact with photon backgrounds and thus the universe is opaque to their propagation. Many Lorentz Invariance Violation (LIV) theories predict a dilation of the expected horizon from which UHECRs can arrive to Earth, in some case even making the interaction probability neglig...
1601.02937
Frank Wilczek
Frank Wilczek and Guy Moore
Superheavy Light Quarks and the Strong P, T Problem
6 pages, 2 figures v.2 : 8 pages, 2 figures. Added author, added references, added material, significantly modified conclusion
null
null
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
New superstrong forces, analogous to QCD but featuring a larger mass scale, should they exist, would offer new possibilities for addressing the strong P, T, problem. One can implement the "massless quark" solution in a phenomenologically acceptable way, by using a massless quark that is always confined within superhe...
[ { "created": "Tue, 12 Jan 2016 16:17:02 GMT", "version": "v1" }, { "created": "Wed, 20 Jan 2016 19:12:56 GMT", "version": "v2" } ]
2016-01-21
[ [ "Wilczek", "Frank", "" ], [ "Moore", "Guy", "" ] ]
New superstrong forces, analogous to QCD but featuring a larger mass scale, should they exist, would offer new possibilities for addressing the strong P, T, problem. One can implement the "massless quark" solution in a phenomenologically acceptable way, by using a massless quark that is always confined within superheav...
2406.01689
Alessandro Strumia
Ferruccio Feruglio, Matteo Parriciatu, Alessandro Strumia, Arsenii Titov
Solving the strong CP problem without axions
44 pages. Final version to appear on JHEP. Webinar presentation: https://youtu.be/iu7i_PvJyTo
null
null
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We formulate general conditions under which the strong CP problem is solved by spontaneous CP violation. Quark-mass matrix elements are polynomials in the CP-breaking order parameters, engineered such that their determinant is a real constant. This scheme permits only a limited number of textures. These conditions ca...
[ { "created": "Mon, 3 Jun 2024 18:00:02 GMT", "version": "v1" }, { "created": "Thu, 15 Aug 2024 04:13:57 GMT", "version": "v2" } ]
2024-08-16
[ [ "Feruglio", "Ferruccio", "" ], [ "Parriciatu", "Matteo", "" ], [ "Strumia", "Alessandro", "" ], [ "Titov", "Arsenii", "" ] ]
We formulate general conditions under which the strong CP problem is solved by spontaneous CP violation. Quark-mass matrix elements are polynomials in the CP-breaking order parameters, engineered such that their determinant is a real constant. This scheme permits only a limited number of textures. These conditions can ...
hep-ph/0301164
Tamas Csorgo
T. Csorgo
Analytic calculation of Bose-Einstein correlations at LEP1 and LEP2
4 pages, invited talk at the XXXIIth Int. Symp. Multiparticle Dynamics, Alushta, Crimea, Ukraine
null
10.1142/9789812704962_0008
null
hep-ph
null
Theoretical results in the tau-model are discussed in the context of Bose-Einstein correlations in e+e- annihilations at LEP1 and LEP2 as well as that of relativistic heavy ion collisions at SPS and RHIC.
[ { "created": "Mon, 20 Jan 2003 18:28:54 GMT", "version": "v1" } ]
2017-08-23
[ [ "Csorgo", "T.", "" ] ]
Theoretical results in the tau-model are discussed in the context of Bose-Einstein correlations in e+e- annihilations at LEP1 and LEP2 as well as that of relativistic heavy ion collisions at SPS and RHIC.
hep-ph/9212239
null
Edward Farhi, Valentin V. Khoze and Robert Singleton Jr
Minkowski Space Non-Abelian Classical Solutions with Non-Integer Winding Number Change
42 p. Plain TeX, 11 Fig. (included), CTP# 2138
Phys.Rev.D47:5551-5564,1993
10.1103/PhysRevD.47.5551
null
hep-ph hep-th
null
Working in a spherically symmetric ansatz in Minkowski space we discover new solutions to the classical equations of motion of pure $SU(2)$ gauge theory. These solutions represent spherical shells of energy which at early times move inward near the speed of light, excite the region of space around the origin at inter...
[ { "created": "Tue, 8 Dec 1992 22:08:19 GMT", "version": "v1" } ]
2010-11-19
[ [ "Farhi", "Edward", "" ], [ "Khoze", "Valentin V.", "" ], [ "Singleton", "Robert", "Jr" ] ]
Working in a spherically symmetric ansatz in Minkowski space we discover new solutions to the classical equations of motion of pure $SU(2)$ gauge theory. These solutions represent spherical shells of energy which at early times move inward near the speed of light, excite the region of space around the origin at interme...
1805.04418
Tevong You
Tevong You
Can We Reach the Scale of New Physics Behind the $B$ Anomalies?
4 pages, 4 figures. Contribution to the proceedings of the 53rd Rencontres de Moriond
null
null
Cavendish-HEP-18/10, DAMTP-2018-18
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Indirect signs of new physics beyond the Standard Model may be appearing in $B \to K^{(*)}\mu^+\mu^-$ decays. If confirmed, the title question will be of paramount importance in determining the strategy for future colliders. We answer it by estimating the sensitivity to minimal, anomaly-compatible $Z^\prime$ and lept...
[ { "created": "Fri, 11 May 2018 14:25:06 GMT", "version": "v1" } ]
2018-05-14
[ [ "You", "Tevong", "" ] ]
Indirect signs of new physics beyond the Standard Model may be appearing in $B \to K^{(*)}\mu^+\mu^-$ decays. If confirmed, the title question will be of paramount importance in determining the strategy for future colliders. We answer it by estimating the sensitivity to minimal, anomaly-compatible $Z^\prime$ and leptoq...
hep-ph/0303225
Kenji Fukushima
Kenji Fukushima
Relation between the Polyakov loop and the chiral order parameter at strong coupling
19 pages, 9 figures, to appear in Phys.Rev.D. Appendix A is modified; references are added
Phys.Rev. D68 (2003) 045004
10.1103/PhysRevD.68.045004
null
hep-ph
null
We discuss the relation between the Polyakov loop and the chiral order parameter at finite temperature by using the Gocksch-Ogilvie model with fundamental or adjoint quarks. The model is based on the double expansion of strong coupling and large dimensionality on the lattice. In an analytic way with the mean field ap...
[ { "created": "Wed, 26 Mar 2003 19:05:42 GMT", "version": "v1" }, { "created": "Sat, 12 Apr 2003 18:15:03 GMT", "version": "v2" }, { "created": "Wed, 14 May 2003 21:03:54 GMT", "version": "v3" }, { "created": "Mon, 14 Jul 2003 09:42:32 GMT", "version": "v4" } ]
2009-11-10
[ [ "Fukushima", "Kenji", "" ] ]
We discuss the relation between the Polyakov loop and the chiral order parameter at finite temperature by using the Gocksch-Ogilvie model with fundamental or adjoint quarks. The model is based on the double expansion of strong coupling and large dimensionality on the lattice. In an analytic way with the mean field appr...
1106.5422
Alon Faraggi
Alon E. Faraggi and Viraf M. Mehta
Leptophobic Z' in Heterotic-String Derived Models
10 pages. Standard LaTex
null
10.1016/j.physletb.2011.08.046
LTH-917
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The CDF collaboration's recent observation of an excess of events in the Wjj channel may be attributed to a new Abelian vector boson with suppressed couplings to leptons. While D0 finds no evidence of an excess, the CDF data provide an opportunity to revisit an old result on leptophobic Z' in heterotic-string derived...
[ { "created": "Mon, 27 Jun 2011 15:44:37 GMT", "version": "v1" } ]
2013-06-13
[ [ "Faraggi", "Alon E.", "" ], [ "Mehta", "Viraf M.", "" ] ]
The CDF collaboration's recent observation of an excess of events in the Wjj channel may be attributed to a new Abelian vector boson with suppressed couplings to leptons. While D0 finds no evidence of an excess, the CDF data provide an opportunity to revisit an old result on leptophobic Z' in heterotic-string derived m...
1810.11538
Oleg Selyugin
O.V. Selyugin and J.R. Cudell
Odderon, HEGS model and LHC data
6 pages, 8 figures, contribution to the conference Diffraction and Low-x 2018, Reggio Calabria, Italy, August 26th t- September 1st, 2018
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show that the impact of the maximal odderon amplitude at t=0 and centre-of-momentum energy 13 TeV is small. We obtain a value of rho(t=0) at 13 TeV of the order of 0.12. The real part of the odderon amplitude grows like log(s/s0) at high energies, and is calculated from the analytic properties of the amplitude. In...
[ { "created": "Fri, 26 Oct 2018 21:41:36 GMT", "version": "v1" } ]
2018-10-30
[ [ "Selyugin", "O. V.", "" ], [ "Cudell", "J. R.", "" ] ]
We show that the impact of the maximal odderon amplitude at t=0 and centre-of-momentum energy 13 TeV is small. We obtain a value of rho(t=0) at 13 TeV of the order of 0.12. The real part of the odderon amplitude grows like log(s/s0) at high energies, and is calculated from the analytic properties of the amplitude. In t...
1909.11088
Kilian Adriano Lieret
Jason Aebischer, Thomas Kuhr, Kilian Lieret
Clustering of $\bar B\to D^{(*)}\tau^-\bar\nu_\tau$ kinematic distributions with ClusterKinG
25 pages, 10 figures, 2 tables; corrected implementation of chi2 metric with correlated random variables and corrected number of degrees of freedom; added toy study to validate statistical treatment
JHEP 04 (2020) 007
10.1007/JHEP04(2020)007
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
New Physics can manifest itself in kinematic distributions of particle decays. The parameter space defining the shape of such distributions can be large which is challenging for both theoretical and experimental studies. Using clustering algorithms, the parameter space can however be dissected into subsets (clusters)...
[ { "created": "Tue, 24 Sep 2019 18:00:00 GMT", "version": "v1" }, { "created": "Sun, 23 Feb 2020 18:46:46 GMT", "version": "v2" }, { "created": "Wed, 10 Mar 2021 19:00:08 GMT", "version": "v3" } ]
2021-03-12
[ [ "Aebischer", "Jason", "" ], [ "Kuhr", "Thomas", "" ], [ "Lieret", "Kilian", "" ] ]
New Physics can manifest itself in kinematic distributions of particle decays. The parameter space defining the shape of such distributions can be large which is challenging for both theoretical and experimental studies. Using clustering algorithms, the parameter space can however be dissected into subsets (clusters) w...
hep-ph/9410373
PostDoc Its
Deshpande, He and Oh
Amplitude Zeros in Radiative Decays of Scalar Particles
Revtex, 17 pages + 6 figures (available upon request), Preprint, OITS559. Several typos with tex file were corrected
Phys.Rev.D51:2295-2301,1995
10.1103/PhysRevD.51.2295
null
hep-ph
null
We study amplitude zeros in radiative decay processes with a photon or a gluon emission of all possible scalar particles(e.g. scalar leptoquarks) which may interact with the usual fermions in models beyond the standard model. For the decays with a photon emission, the amplitudes clearly exhibit the factorization prop...
[ { "created": "Tue, 25 Oct 1994 23:53:57 GMT", "version": "v1" }, { "created": "Wed, 26 Oct 1994 23:18:38 GMT", "version": "v2" } ]
2010-11-01
[ [ "Deshpande", "", "" ], [ "He", "", "" ], [ "Oh", "", "" ] ]
We study amplitude zeros in radiative decay processes with a photon or a gluon emission of all possible scalar particles(e.g. scalar leptoquarks) which may interact with the usual fermions in models beyond the standard model. For the decays with a photon emission, the amplitudes clearly exhibit the factorization proper...
0707.0294
Alexey A. Petrov
Andriy Badin, Fabrizio Gabbiani and Alexey A. Petrov
Lifetime Difference in B_s mixing: Standard Model and beyond
21 pages, 6 figures
Phys.Lett.B653:230-240,2007
10.1016/j.physletb.2007.07.049
WSU-HEP-0702
hep-ph
null
We present a calculation of 1/m^2_b corrections to the lifetime differences of B_s mesons \Delta \Gamma_s in the heavy-quark expansion. We find that they are small to significantly affect \Delta \Gamma_s and present the result for lifetime difference including non-perturbative 1/m_b and 1/m_b^2 corrections. We also a...
[ { "created": "Mon, 2 Jul 2007 19:53:39 GMT", "version": "v1" } ]
2008-11-26
[ [ "Badin", "Andriy", "" ], [ "Gabbiani", "Fabrizio", "" ], [ "Petrov", "Alexey A.", "" ] ]
We present a calculation of 1/m^2_b corrections to the lifetime differences of B_s mesons \Delta \Gamma_s in the heavy-quark expansion. We find that they are small to significantly affect \Delta \Gamma_s and present the result for lifetime difference including non-perturbative 1/m_b and 1/m_b^2 corrections. We also ana...
2203.06362
Sanjoy Mandal
Sanjoy Mandal, O. G. Miranda, G. Sanchez Garcia, J. W. F. Valle and Xun-Jie Xu
Towards deconstructing the simplest seesaw mechanism
42 pages, 25 figures
null
10.1103/PhysRevD.105.095020
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
The triplet or type-II seesaw mechanism is the simplest way to endow neutrinos with mass in the Standard Model (SM). Here we review its associated theory and phenomenology, including restrictions from $S$, $T$, $U$ parameters, neutrino experiments, charged lepton flavour violations as well as collider searches. We al...
[ { "created": "Sat, 12 Mar 2022 06:58:33 GMT", "version": "v1" } ]
2022-06-01
[ [ "Mandal", "Sanjoy", "" ], [ "Miranda", "O. G.", "" ], [ "Garcia", "G. Sanchez", "" ], [ "Valle", "J. W. F.", "" ], [ "Xu", "Xun-Jie", "" ] ]
The triplet or type-II seesaw mechanism is the simplest way to endow neutrinos with mass in the Standard Model (SM). Here we review its associated theory and phenomenology, including restrictions from $S$, $T$, $U$ parameters, neutrino experiments, charged lepton flavour violations as well as collider searches. We also...
hep-ph/0303136
Mannque Rho
Mannque Rho
On Effective Degrees of Freedom at Chiral Restoration and the Vector Manifestation
Lecture given at 2002 International Workshop on ``Strong coupling Gauge Theories and Effective Field Theories," 10-13 December 2002, Nagoya University, Nagoya, Japan, to appear in World Scientific
null
10.1142/9789812795120_0015
null
hep-ph nucl-th
null
Recent research activities on the chiral structure of hadronic matter near the phase transition predicted by QCD and extensively looked for in terrestrial laboratories as well as in satellite observatories raise the issue of whether we have fully identified the relevant degrees of freedom involved in the transition. ...
[ { "created": "Mon, 17 Mar 2003 12:10:52 GMT", "version": "v1" }, { "created": "Wed, 19 Mar 2003 00:10:38 GMT", "version": "v2" } ]
2017-08-23
[ [ "Rho", "Mannque", "" ] ]
Recent research activities on the chiral structure of hadronic matter near the phase transition predicted by QCD and extensively looked for in terrestrial laboratories as well as in satellite observatories raise the issue of whether we have fully identified the relevant degrees of freedom involved in the transition. In...
hep-ph/9903550
Matthew F. Parry
Matthew Parry and Richard Easther
Preheating, Parametric Resonance and the Einstein Field Equations
6 pages, 3 figures, Latex. To appear in the electronic proceedings of the 19th Texas Symposium, Paris
null
null
BROWN-HET-1181, TA-573
hep-ph
null
We consider the interaction between perturbations in the inflaton and in the metric during the preheating phase in simple inflationary models. By numerically integrating the Einstein field equations we are able to gauge the impact of non-linear gravitational effects on preheating for the first time. In the lambda phi...
[ { "created": "Wed, 31 Mar 1999 21:08:48 GMT", "version": "v1" } ]
2007-05-23
[ [ "Parry", "Matthew", "" ], [ "Easther", "Richard", "" ] ]
We consider the interaction between perturbations in the inflaton and in the metric during the preheating phase in simple inflationary models. By numerically integrating the Einstein field equations we are able to gauge the impact of non-linear gravitational effects on preheating for the first time. In the lambda phi^4...
hep-ph/0512071
Osamu Seto
Osamu Seto
Affleck-Dine baryogenesis and gravitino dark matter
13 pages, no figure, reference added and typos corrected, final version
Phys.Rev. D73 (2006) 043509
10.1103/PhysRevD.73.043509
null
hep-ph astro-ph
null
Affleck-Dine baryogenesis in models where the gravitino is both the lightest supersymmetric particle and the dark matter candidate is investigated. For a high enough reheating temperature to produce sufficient gravitinos by thermal processes, the observed baryon asymmetry can be explained by Affleck-Dine baryogenesis...
[ { "created": "Mon, 5 Dec 2005 21:57:01 GMT", "version": "v1" }, { "created": "Mon, 20 Feb 2006 12:03:31 GMT", "version": "v2" } ]
2009-11-11
[ [ "Seto", "Osamu", "" ] ]
Affleck-Dine baryogenesis in models where the gravitino is both the lightest supersymmetric particle and the dark matter candidate is investigated. For a high enough reheating temperature to produce sufficient gravitinos by thermal processes, the observed baryon asymmetry can be explained by Affleck-Dine baryogenesis a...
hep-ph/0510227
Christophe Royon
C. Royon
High mass diffraction at the Tevatron and the LHC
Proceedings of the XIth International Conference on Elastic and Diffractive Scattering, Blois, France, May 2005
null
null
null
hep-ph
null
We use a Monte Carlo implementation of recently developped models of exclusive diffractive $W$, top, Higgs and stop productions to assess the sensitivity of the LHC experiments.
[ { "created": "Mon, 17 Oct 2005 22:48:14 GMT", "version": "v1" } ]
2007-05-23
[ [ "Royon", "C.", "" ] ]
We use a Monte Carlo implementation of recently developped models of exclusive diffractive $W$, top, Higgs and stop productions to assess the sensitivity of the LHC experiments.
hep-ph/9507458
null
Chungsik Song and C. M. Ko
Dilepton production from resonance scattering in hot hadronic matter
11 pages + 5 figures (not included)
Phys.Rev.C53:2371-2375,1996
10.1103/PhysRevC.53.2371
null
hep-ph nucl-th
null
Dilepton production from resonance scattering in hot hadronic matter is studied. Including the widths of these resonances, which enhance the phase space for dilepton production, we find that the production rate is significantly increased if a resonance appears in the extended phase space. For the reaction $\pi+\rho\t...
[ { "created": "Mon, 31 Jul 1995 15:42:01 GMT", "version": "v1" } ]
2009-09-25
[ [ "Song", "Chungsik", "" ], [ "Ko", "C. M.", "" ] ]
Dilepton production from resonance scattering in hot hadronic matter is studied. Including the widths of these resonances, which enhance the phase space for dilepton production, we find that the production rate is significantly increased if a resonance appears in the extended phase space. For the reaction $\pi+\rho\to ...
1205.4852
Takuya Tsukioka
Youngman Kim, Ik Jae Shin, and Takuya Tsukioka
Holographic QCD: Past, Present, and Future
80 pages, 18 figures, LaTeX; references added, published version + appendix
null
10.1016/j.ppnp.2012.09.002
APCTP-Pre2012-007
hep-ph hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
At the dawn of a new theoretical tool based on the AdS/CFT correspondence for nonperturbative aspects of quantum chromodynamics, we give an interim review on the new tool, holographic QCD, with some of its accomplishment. We try to give an A-to-Z picture of the holographic QCD, from string theory to a few selected to...
[ { "created": "Tue, 22 May 2012 09:21:08 GMT", "version": "v1" }, { "created": "Fri, 5 Oct 2012 11:01:58 GMT", "version": "v2" } ]
2015-06-05
[ [ "Kim", "Youngman", "" ], [ "Shin", "Ik Jae", "" ], [ "Tsukioka", "Takuya", "" ] ]
At the dawn of a new theoretical tool based on the AdS/CFT correspondence for nonperturbative aspects of quantum chromodynamics, we give an interim review on the new tool, holographic QCD, with some of its accomplishment. We try to give an A-to-Z picture of the holographic QCD, from string theory to a few selected top-...
hep-ph/9710560
Gerhard Ecker
Gerhard Ecker
Pion-pion and pion-nucleon interactions in chiral perturbation theory
16 pages, Latex with lamuphys.sty, 2 figures embedded with epsfig.sty. To appear in Proc. of Workshop on Chiral Dynamics 1997, Mainz, Germany, Sept. 1997
null
10.1007/BFb0104914
UWThPh-1997-39
hep-ph
null
Elastic pion-pion and pion-nucleon scattering are reviewed in the context of chiral perturbation theory. Theoretical results from systematic low-energy expansions to O(p^6) for pion-pion and to O(p^3) for pion-nucleon scattering are compared with experimental data. Possible future developments are outlined.
[ { "created": "Fri, 31 Oct 1997 12:44:04 GMT", "version": "v1" } ]
2009-10-30
[ [ "Ecker", "Gerhard", "" ] ]
Elastic pion-pion and pion-nucleon scattering are reviewed in the context of chiral perturbation theory. Theoretical results from systematic low-energy expansions to O(p^6) for pion-pion and to O(p^3) for pion-nucleon scattering are compared with experimental data. Possible future developments are outlined.
hep-ph/0212164
Benjamin Grinstein
Christian W.Bauer and Benjamin Grinstein
Detector resolution effects on hadronic mass moments in B -> X l nu
Some details as well as one reference added. Version to be published in PRD
Phys.Rev. D68 (2003) 054002
10.1103/PhysRevD.68.054002
UCSD/PTH 02-28
hep-ph hep-ex
null
We show how to relate moments of the reconstructed hadronic invariant mass distribution to the moments of the physical spectrum in a model independent way. The only information needed on detector resolution functions are their first few moments. Theoretical predictions for the first three moments as functions of non-...
[ { "created": "Wed, 11 Dec 2002 21:40:27 GMT", "version": "v1" }, { "created": "Fri, 11 Jul 2003 21:25:00 GMT", "version": "v2" } ]
2009-11-07
[ [ "Bauer", "Christian W.", "" ], [ "Grinstein", "Benjamin", "" ] ]
We show how to relate moments of the reconstructed hadronic invariant mass distribution to the moments of the physical spectrum in a model independent way. The only information needed on detector resolution functions are their first few moments. Theoretical predictions for the first three moments as functions of non-pe...
2102.11792
He-Xia Zhang
He-Xia Zhang, Yu-Xin Xiao, Jin-Wen Kang and Ben-Wei Zhang
Phenomenological study of the anisotropic quark matter in the 2-flavor Nambu-Jona-Lasinio model
20 pages, 10figures
null
null
null
hep-ph nucl-th
http://creativecommons.org/licenses/by/4.0/
With the two flavor Nambu-Jona-Lasinio (NJL) model we carry out a phenomenological study on the chiral phase structure, mesonic properties and transport properties in a momentum-space anisotropic quark matter. To calculate transport coefficients we have utilized the kinetic theory in the relaxation time approximation...
[ { "created": "Tue, 23 Feb 2021 16:54:18 GMT", "version": "v1" }, { "created": "Fri, 8 Oct 2021 07:43:39 GMT", "version": "v2" }, { "created": "Wed, 12 Jan 2022 03:11:31 GMT", "version": "v3" } ]
2022-01-13
[ [ "Zhang", "He-Xia", "" ], [ "Xiao", "Yu-Xin", "" ], [ "Kang", "Jin-Wen", "" ], [ "Zhang", "Ben-Wei", "" ] ]
With the two flavor Nambu-Jona-Lasinio (NJL) model we carry out a phenomenological study on the chiral phase structure, mesonic properties and transport properties in a momentum-space anisotropic quark matter. To calculate transport coefficients we have utilized the kinetic theory in the relaxation time approximation, ...
hep-ph/9801249
Rainer Dick
R. Dick, M. Gaul
Cosmological implications of a light dilaton
LaTeX, 9 pages incl. 1 figure, reference added
null
10.1142/9789814447263_0076
LMU-TPW-98/01, MPI-PhT-98/01
hep-ph hep-th
null
Supersymmetric Peccei-Quinn symmetry and string theory predict a complex scalar field comprising a dilaton and an axion. These fields are massless at high energies, but it is known since long that the axion is stabilized in an instanton dominated vacuum. Instantons and axions together also provide a mechanism to stab...
[ { "created": "Fri, 9 Jan 1998 12:53:49 GMT", "version": "v1" }, { "created": "Wed, 14 Jan 1998 15:02:06 GMT", "version": "v2" } ]
2016-10-26
[ [ "Dick", "R.", "" ], [ "Gaul", "M.", "" ] ]
Supersymmetric Peccei-Quinn symmetry and string theory predict a complex scalar field comprising a dilaton and an axion. These fields are massless at high energies, but it is known since long that the axion is stabilized in an instanton dominated vacuum. Instantons and axions together also provide a mechanism to stabil...
0910.2479
Saba Zuberi
William Man-Yin Cheung, Michael Luke, Saba Zuberi
Phase Space and Jet Definitions in SCET
13 pages, 6 figures
Phys.Rev.D80:114021,2009
10.1103/PhysRevD.80.114021
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss consistent power counting for integrating soft and collinear degrees of freedom over arbitrary regions of phase space in the soft-collinear effective theory (SCET), and illustrate our results at one loop with several jet algorithms: JADE, Sterman-Weinberg and k_T. Consistently applying SCET power-counting ...
[ { "created": "Tue, 13 Oct 2009 21:38:29 GMT", "version": "v1" } ]
2010-02-16
[ [ "Cheung", "William Man-Yin", "" ], [ "Luke", "Michael", "" ], [ "Zuberi", "Saba", "" ] ]
We discuss consistent power counting for integrating soft and collinear degrees of freedom over arbitrary regions of phase space in the soft-collinear effective theory (SCET), and illustrate our results at one loop with several jet algorithms: JADE, Sterman-Weinberg and k_T. Consistently applying SCET power-counting in...
1910.10519
Muhammad Atif Masoud
Muhammad Atif Masoud, Mansoor Ur Rehman, Mian Muhammad Azeem Abid
Nonminimal Inflation in Supersymmetric GUTs with $U(1)_R \times Z_n$ Symmetry
9 pages, 4 figures, published version
Int.J. Mod Physics D (Oct 2019)
10.1142/S0218271820400155
Vol No.28, Iss. No.16
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A supersymmetric hybrid inflation framework is employed to realize a class of non-minimal inflation models with $U(1)_R \times Z_n$ global symmetry. This framework naturally incorporates models based on grand unified theories by avoiding the most commonly faced monopole problem. The predictions of inflationary observ...
[ { "created": "Wed, 23 Oct 2019 12:20:50 GMT", "version": "v1" } ]
2020-02-17
[ [ "Masoud", "Muhammad Atif", "" ], [ "Rehman", "Mansoor Ur", "" ], [ "Abid", "Mian Muhammad Azeem", "" ] ]
A supersymmetric hybrid inflation framework is employed to realize a class of non-minimal inflation models with $U(1)_R \times Z_n$ global symmetry. This framework naturally incorporates models based on grand unified theories by avoiding the most commonly faced monopole problem. The predictions of inflationary observab...
hep-ph/9605370
Thomas G. Rizzo
Thomas G. Rizzo
Probing Weak Anomalous Top Quark Couplings with Final State Gluons at the NLC
8 pages plus embedded figures, compressed PS file
null
null
SLAC-PUB-7153
hep-ph
null
The rate and corresponding gluon jet energy distribution for the process $e^+e^- \to t\bar tg$ are sensitive to the presence of anomalous dipole-like couplings of the top to the photon and $Z$ at the production vertex. For sizeable anomalous couplings of this type substantial deviations from the expectations of the S...
[ { "created": "Tue, 21 May 1996 21:43:59 GMT", "version": "v1" } ]
2007-05-23
[ [ "Rizzo", "Thomas G.", "" ] ]
The rate and corresponding gluon jet energy distribution for the process $e^+e^- \to t\bar tg$ are sensitive to the presence of anomalous dipole-like couplings of the top to the photon and $Z$ at the production vertex. For sizeable anomalous couplings of this type substantial deviations from the expectations of the Sta...
2003.09290
Hyun Min Lee
Yoo-Jin Kang, Hyun Min Lee
Effective theory for self-interacting dark matter and massive spin-2 mediators
35 pages, 3 figures, published version
null
10.1088/1361-6471/abe529
null
hep-ph astro-ph.GA hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the effective theory for self-interacting dark matter with arbitrary spin and go beyond the previous discussion in the literature by introducing a massive spin-2 particle as the mediator for the dark matter self-scattering. We present the effective self-interactions for dark matter in the leading order ex...
[ { "created": "Fri, 20 Mar 2020 14:20:16 GMT", "version": "v1" }, { "created": "Mon, 4 Jan 2021 02:10:03 GMT", "version": "v2" }, { "created": "Fri, 12 Feb 2021 13:20:58 GMT", "version": "v3" } ]
2021-05-26
[ [ "Kang", "Yoo-Jin", "" ], [ "Lee", "Hyun Min", "" ] ]
We consider the effective theory for self-interacting dark matter with arbitrary spin and go beyond the previous discussion in the literature by introducing a massive spin-2 particle as the mediator for the dark matter self-scattering. We present the effective self-interactions for dark matter in the leading order expa...
1605.00011
Jonathan Davis
Jonathan H. Davis
How well can new particles interacting with neutrinos be constrained after a galactic supernova?
9 pages, 5 figures
null
null
KCL-PH-TH/2016-22
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A supernova event in our own galaxy will result in a large number of neutrinos detected on Earth within the time-frame of a few seconds. These neutrinos will have been produced thermally with, in principle, three distinct temperatures for the electron, anti-electron and remaining heavy flavours respectively. We revis...
[ { "created": "Fri, 29 Apr 2016 20:00:08 GMT", "version": "v1" } ]
2016-05-04
[ [ "Davis", "Jonathan H.", "" ] ]
A supernova event in our own galaxy will result in a large number of neutrinos detected on Earth within the time-frame of a few seconds. These neutrinos will have been produced thermally with, in principle, three distinct temperatures for the electron, anti-electron and remaining heavy flavours respectively. We revisit...
2303.00452
Istv\'an Szanyi
L\'aszl\'o Jenkovszky, Rainer Schicker, Istv\'an Szanyi
Regge models of proton diffractive dissociation based on factorization and structure functions
11 pages, 9 figures
Entropy 2022, 24(7), 1001
10.3390/e24071001
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recent results by the authors on proton diffractive dissociation (single, double and central) in the low-mass resonance region with emphasis on the LHC kinematics are reviewed and updated. Based on the previous ideas that the contribution of the inelastic proton-Pomeron vertex can be described by the proton structure...
[ { "created": "Wed, 1 Mar 2023 12:21:30 GMT", "version": "v1" } ]
2023-03-02
[ [ "Jenkovszky", "László", "" ], [ "Schicker", "Rainer", "" ], [ "Szanyi", "István", "" ] ]
Recent results by the authors on proton diffractive dissociation (single, double and central) in the low-mass resonance region with emphasis on the LHC kinematics are reviewed and updated. Based on the previous ideas that the contribution of the inelastic proton-Pomeron vertex can be described by the proton structure f...
2007.08537
Huaike Guo
Huai-Ke Guo, Kuver Sinha, Daniel Vagie, Graham White
Phase Transitions in an Expanding Universe: Stochastic Gravitational Waves in Standard and Non-Standard Histories
52 pages, 20 figures; v3: version published in JCAP
JCAP01(2021)001
10.1088/1475-7516/2021/01/001
null
hep-ph astro-ph.CO astro-ph.HE hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We undertake a careful analysis of stochastic gravitational wave production from cosmological phase transitions in an expanding universe, studying both a standard radiation as well as a matter dominated history. We analyze in detail the dynamics of the phase transition, including the false vacuum fraction, bubble lif...
[ { "created": "Thu, 16 Jul 2020 18:00:05 GMT", "version": "v1" }, { "created": "Thu, 30 Jul 2020 17:30:22 GMT", "version": "v2" }, { "created": "Tue, 5 Jan 2021 22:27:49 GMT", "version": "v3" } ]
2021-01-07
[ [ "Guo", "Huai-Ke", "" ], [ "Sinha", "Kuver", "" ], [ "Vagie", "Daniel", "" ], [ "White", "Graham", "" ] ]
We undertake a careful analysis of stochastic gravitational wave production from cosmological phase transitions in an expanding universe, studying both a standard radiation as well as a matter dominated history. We analyze in detail the dynamics of the phase transition, including the false vacuum fraction, bubble lifet...
hep-ph/0202253
Krzysztof Urbanowski
K. Urbanowski
A new interpretation of one CPT violation test for $K_0 - \bar{K}_0$ system
LaTex2e, 18 pages, new comments and references added
Acta Phys.Polon. B35 (2004) 2069-2084
null
null
hep-ph astro-ph hep-ex
null
Using a more accurate approximation than that applied by Lee--Oehme--Yang we show that the interpretation of the tests measuring the difference between the $K_{0}$ mass and the ${\bar K}_{0}$ mass as the CPT--symmetry test is wrong. We find that in fact such tests are tests for the existence of the hypothetical inter...
[ { "created": "Tue, 26 Feb 2002 19:49:19 GMT", "version": "v1" }, { "created": "Sat, 2 Mar 2002 09:16:47 GMT", "version": "v2" }, { "created": "Sat, 25 Jan 2003 15:34:39 GMT", "version": "v3" }, { "created": "Tue, 18 Feb 2003 21:05:48 GMT", "version": "v4" }, { "cr...
2007-05-23
[ [ "Urbanowski", "K.", "" ] ]
Using a more accurate approximation than that applied by Lee--Oehme--Yang we show that the interpretation of the tests measuring the difference between the $K_{0}$ mass and the ${\bar K}_{0}$ mass as the CPT--symmetry test is wrong. We find that in fact such tests are tests for the existence of the hypothetical interac...
2312.14105
T\'essio B. de Melo
Asmaa Abada, Nicol\'as Bernal, Antonio E. C\'arcamo Hern\'andez, Sergey Kovalenko, T\'essio B. de Melo
Three-Loop Inverse Scotogenic Seesaw Models
31 pages, 8 figures, 3 tables. Matches published version in JHEP
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a class of models providing an explanation of the origin of light neutrino masses, the baryon asymmetry of the Universe via leptogenesis and offering viable dark matter candidates. In these models the Majorana masses of the active neutrino are generated by the inverse seesaw mechanism with the lepton numbe...
[ { "created": "Thu, 21 Dec 2023 18:29:04 GMT", "version": "v1" }, { "created": "Wed, 10 Apr 2024 14:52:11 GMT", "version": "v2" } ]
2024-04-11
[ [ "Abada", "Asmaa", "" ], [ "Bernal", "Nicolás", "" ], [ "Hernández", "Antonio E. Cárcamo", "" ], [ "Kovalenko", "Sergey", "" ], [ "de Melo", "Téssio B.", "" ] ]
We propose a class of models providing an explanation of the origin of light neutrino masses, the baryon asymmetry of the Universe via leptogenesis and offering viable dark matter candidates. In these models the Majorana masses of the active neutrino are generated by the inverse seesaw mechanism with the lepton number ...
hep-ph/9601230
Mad
Marco A. Diaz and Steve F. King (Southampton)
Chargino Production at LEP2 in a Supergravity Model
11 pages, latex, 4 figures uufiled
Phys.Lett. B373 (1996) 100-106
10.1016/0370-2693(96)00097-4
SHEP-95/30
hep-ph
null
In the framework of a particular supergravity model which provides a natural solution to the $\mu$--problem we show how the discovery of a chargino at LEP2 and the measurement of its mass and production cross--section, together with the measurement of the mass of the lightest neutralino, would determine the entire Hi...
[ { "created": "Tue, 9 Jan 1996 10:47:01 GMT", "version": "v1" } ]
2009-10-28
[ [ "Diaz", "Marco A.", "", "Southampton" ], [ "King", "Steve F.", "", "Southampton" ] ]
In the framework of a particular supergravity model which provides a natural solution to the $\mu$--problem we show how the discovery of a chargino at LEP2 and the measurement of its mass and production cross--section, together with the measurement of the mass of the lightest neutralino, would determine the entire Higg...
2205.04049
Xiang Liu
Yu-Shuai Li, Zi-Yue Bai and Xiang Liu
Investigating the $\mathbf{\Upsilon(10753)\to \Upsilon(1^3D_J)\eta}$ transitions
7 pages, 2 figures and 1 table. arXiv admin note: text overlap with arXiv:2106.14123, arXiv:2201.12715
Phys.Rev.D, 105, 114041 (2022)
10.1103/PhysRevD.105.114041
null
hep-ph hep-ex
http://creativecommons.org/publicdomain/zero/1.0/
In this work, we investigate the $\Upsilon(10753)\to\Upsilon(1^3D_J)\eta$ ($J=1,2,3$) processes, where the $\Upsilon(10753)$ is assigned as a conventional bottomonium under the $4S$-$3D$ mixing scheme. Our result shows that the concerned processes have considerable branching ratios, {\it i.e.}, branching ratios $\mat...
[ { "created": "Mon, 9 May 2022 05:36:59 GMT", "version": "v1" }, { "created": "Sat, 18 Jun 2022 05:15:54 GMT", "version": "v2" }, { "created": "Tue, 28 Jun 2022 04:43:17 GMT", "version": "v3" } ]
2022-06-29
[ [ "Li", "Yu-Shuai", "" ], [ "Bai", "Zi-Yue", "" ], [ "Liu", "Xiang", "" ] ]
In this work, we investigate the $\Upsilon(10753)\to\Upsilon(1^3D_J)\eta$ ($J=1,2,3$) processes, where the $\Upsilon(10753)$ is assigned as a conventional bottomonium under the $4S$-$3D$ mixing scheme. Our result shows that the concerned processes have considerable branching ratios, {\it i.e.}, branching ratios $\mathc...
hep-ph/0010330
Andreas Nyffeler
Andreas Nyffeler (CPT Marseille)
Chiral Dynamics in the electroweak sector
2 pages, Latex (sprocl.sty); Talk held at the Workshop Chiral Dynamics 2000, Newport News, USA, 17-22 July 2000
null
10.1142/9789812810977_0046
CPT-2000/P.4072
hep-ph
null
Using a chiral Lagrangian we show that strongly interacting models of electroweak symmetry breaking are not in conflict with precision data. Such models, like Technicolor, need not lead to a heavy Higgs-like signal. Furthermore, the allowed values for the low-energy constants in the effective Lagrangian, derived from...
[ { "created": "Mon, 30 Oct 2000 08:52:22 GMT", "version": "v1" } ]
2017-08-23
[ [ "Nyffeler", "Andreas", "", "CPT Marseille" ] ]
Using a chiral Lagrangian we show that strongly interacting models of electroweak symmetry breaking are not in conflict with precision data. Such models, like Technicolor, need not lead to a heavy Higgs-like signal. Furthermore, the allowed values for the low-energy constants in the effective Lagrangian, derived from b...
hep-ph/9712278
Paolo Lipari
Paolo Lipari and Maurizio Lusignoli (Dipartimento di Fisica, Universita' di Roma "la Sapienza" and INFN sez. Roma)
The Energy and Zenith Angle Distribution of Upward Going Muons and Neutrino Oscillations
8 pages Latex, with 3 embedded eps figures
Phys.Rev. D57 (1998) 3842-3846
10.1103/PhysRevD.57.R3842
Roma preprint n. 1190/97
hep-ph
null
The energy and zenith angle distribution of neutrino induced, upward going muons can give direct information on the presence of $\nu$--oscillations in precisely the range of parameters suggested as a solution of the atmospheric neutrino problem. We discuss here the uncertainties in the theoretical prediction. The sha...
[ { "created": "Fri, 5 Dec 1997 19:56:57 GMT", "version": "v1" } ]
2009-10-30
[ [ "Lipari", "Paolo", "", "Dipartimento di Fisica,\n Universita' di Roma \"la Sapienza\" and INFN sez. Roma" ], [ "Lusignoli", "Maurizio", "", "Dipartimento di Fisica,\n Universita' di Roma \"la Sapienza\" and INFN sez. Roma" ] ]
The energy and zenith angle distribution of neutrino induced, upward going muons can give direct information on the presence of $\nu$--oscillations in precisely the range of parameters suggested as a solution of the atmospheric neutrino problem. We discuss here the uncertainties in the theoretical prediction. The shape...
hep-ph/0209187
Thomas Teubner
K. Hagiwara (KEK), A. D. Martin, Daisuke Nomura (Durham) and T. Teubner (CERN)
The SM prediction of g-2 of the muon
8 pages, LaTeX, 3 PostScript figures included. For completeness, we have added a recent prediction of the hadronic contribution by F. Jegerlehner
Phys.Lett.B557:69-75,2003
10.1016/S0370-2693(03)00138-2
KEK-TH-844, IPPP/02/52, DCPT/02/104, CERN-TH/2002-233
hep-ph
null
We calculate (g-2)/2 of the muon, by improving the determination of the hadronic vacuum polarisation contribution, a_mu^{had,LO}, and its uncertainties. The different e+e- data sets for each exclusive (and the inclusive) channel are combined in order to obtain the optimum estimate of the cross sections and their unce...
[ { "created": "Tue, 17 Sep 2002 13:02:15 GMT", "version": "v1" }, { "created": "Fri, 20 Sep 2002 11:56:58 GMT", "version": "v2" } ]
2008-11-26
[ [ "Hagiwara", "K.", "", "KEK" ], [ "Martin", "A. D.", "", "Durham" ], [ "Nomura", "Daisuke", "", "Durham" ], [ "Teubner", "T.", "", "CERN" ] ]
We calculate (g-2)/2 of the muon, by improving the determination of the hadronic vacuum polarisation contribution, a_mu^{had,LO}, and its uncertainties. The different e+e- data sets for each exclusive (and the inclusive) channel are combined in order to obtain the optimum estimate of the cross sections and their uncert...
hep-ph/9209292
null
S.A. Abel, S. Sarkar and I.B. Whittingham
Neutralino Dark Matter in a Class of Unified Theories
24 Pages, OUTP-92-10P
Nucl.Phys.B392:83-110,1993
10.1016/0550-3213(93)90198-X
null
hep-ph astro-ph
null
The cosmological significance of the neutralino sector is studied for a class of models in which electroweak symmetry breaking is seeded by a gauge singlet. Extensive use is made of the renormalisation group equations to significantly reduce the parameter space, by deriving analytic expressions for all the supersymme...
[ { "created": "Tue, 29 Sep 1992 16:12:01 GMT", "version": "v1" } ]
2011-02-16
[ [ "Abel", "S. A.", "" ], [ "Sarkar", "S.", "" ], [ "Whittingham", "I. B.", "" ] ]
The cosmological significance of the neutralino sector is studied for a class of models in which electroweak symmetry breaking is seeded by a gauge singlet. Extensive use is made of the renormalisation group equations to significantly reduce the parameter space, by deriving analytic expressions for all the supersymmetr...
2302.02174
Benedict Fraser
Alexander Balatsky, Benjo Fraser
Comment on "Axion-matter coupling in multiferroics"
2 pages, 1 figure
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
A previous publication [H. S. Roising et al., Phys. Rev. Research 3, 033236 (2021)] involving the current authors pointed out a coupling between dark matter axions and ferroic orders in multiferroics. In this comment we argue that using this coupling for dark matter sensing is likely not feasible for the material cla...
[ { "created": "Sat, 4 Feb 2023 14:36:26 GMT", "version": "v1" } ]
2023-02-07
[ [ "Balatsky", "Alexander", "" ], [ "Fraser", "Benjo", "" ] ]
A previous publication [H. S. Roising et al., Phys. Rev. Research 3, 033236 (2021)] involving the current authors pointed out a coupling between dark matter axions and ferroic orders in multiferroics. In this comment we argue that using this coupling for dark matter sensing is likely not feasible for the material class...
2110.08215
Yidian Chen
Yidian Chen, Mei Huang
Holographic QCD model for $N_f=4$
null
null
10.1103/PhysRevD.105.026021
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We establish a holographic QCD model for four flavors, where a light scalar field $X$ and a heavy scalar field $H$ are introduced, separately. The $H$ field is responsible for the breaking of $SU(N_f=4)$ to $SU(N_f=3)$. The ground state and its Regge excitation of meson spectra in the light flavor sector and heavy fl...
[ { "created": "Fri, 15 Oct 2021 17:20:41 GMT", "version": "v1" } ]
2022-02-02
[ [ "Chen", "Yidian", "" ], [ "Huang", "Mei", "" ] ]
We establish a holographic QCD model for four flavors, where a light scalar field $X$ and a heavy scalar field $H$ are introduced, separately. The $H$ field is responsible for the breaking of $SU(N_f=4)$ to $SU(N_f=3)$. The ground state and its Regge excitation of meson spectra in the light flavor sector and heavy flav...
1304.6031
Hiroaki Sugiyama
Hiroaki Sugiyama (Kyoto Sangyo U.)
Neutrino Mass in TeV-Scale New Physics Models
6 pages, 3 figures, talk given in Toyama International Workshop on "Higgs as a Probe of New Physics 2013" (HPNP2013), Toyama, Japan, 13-16 Feb. 2013
null
null
MISC-2013-02
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This is a short review about relations between new scalars and mechanisms to generate neutrino masses. We investigate leptohilic scalars whose Yukawa interactions are only with leptons. We discuss possibilities that measurements of their leptonic decays provide information on how neutrino masses are generated and on ...
[ { "created": "Mon, 22 Apr 2013 17:52:46 GMT", "version": "v1" } ]
2013-04-24
[ [ "Sugiyama", "Hiroaki", "", "Kyoto Sangyo U." ] ]
This is a short review about relations between new scalars and mechanisms to generate neutrino masses. We investigate leptohilic scalars whose Yukawa interactions are only with leptons. We discuss possibilities that measurements of their leptonic decays provide information on how neutrino masses are generated and on pa...
1911.08695
Xuangong Wang
X. G. Wang and A. W. Thomas
Refined analysis on the parton distribution functions of the proton
null
J. Phys. G: Nucl. Part. Phys. 47 (2020) 015102
10.1088/1361-6471/ab51b3
ADP-19-28/T1108
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore the application of a two-component model of proton structure functions in the analysis of deep-inelastic scattering (DIS) data at low $Q^2$ and small $x$. This model incorporates both vector meson dominance and the correct photo-production limit. The CJ15 parameterization is applied to the QCD component, i...
[ { "created": "Wed, 20 Nov 2019 04:13:05 GMT", "version": "v1" } ]
2019-11-21
[ [ "Wang", "X. G.", "" ], [ "Thomas", "A. W.", "" ] ]
We explore the application of a two-component model of proton structure functions in the analysis of deep-inelastic scattering (DIS) data at low $Q^2$ and small $x$. This model incorporates both vector meson dominance and the correct photo-production limit. The CJ15 parameterization is applied to the QCD component, in ...
hep-ph/9607482
Alan Kostelecky
Alan Kostelecky
CPT, Strings, and Neutral Mesons
Talk at PANIC '96, May 1996, 2 pages, needs sprocl.sty
null
null
IUHET 335, May 1996
hep-ph
null
A sketch of our results on CPT and strings is given. A mechanism for spontaneous CPT violation in string theory is briefly reviewed, and recent theoretical progress is summarized. Possible CPT-violating contributions to a four-dimensional low-energy effective theory could produce effects at levels testable in neutral...
[ { "created": "Wed, 31 Jul 1996 18:30:46 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kostelecky", "Alan", "" ] ]
A sketch of our results on CPT and strings is given. A mechanism for spontaneous CPT violation in string theory is briefly reviewed, and recent theoretical progress is summarized. Possible CPT-violating contributions to a four-dimensional low-energy effective theory could produce effects at levels testable in neutral-m...
hep-ph/9610319
David Thomas
Keith A. Olive and David Thomas
A Big Bang Nucleosynthesis Likelihood Analysis of the Baryon-to-Photon Ratio and the Number of Light Particle Degrees of Freedom
12 pages, latex, 4 ps figures, requires epsf
Astropart.Phys.7:27-34,1997
10.1016/S0927-6505(97)00008-X
UMN-TH-1515/96
hep-ph astro-ph
null
We extend the model-independent likelihood analysis of big bang nucleosynthesis (BBN) based on He4 and Li7 to allow for numbers of degrees of freedom which differ from the standard model value characterized by $N_\nu = 3$. We use the two-dimensional likelihood functions to simultaneously constrain the baryon-to-photo...
[ { "created": "Thu, 10 Oct 1996 20:13:55 GMT", "version": "v1" } ]
2008-11-26
[ [ "Olive", "Keith A.", "" ], [ "Thomas", "David", "" ] ]
We extend the model-independent likelihood analysis of big bang nucleosynthesis (BBN) based on He4 and Li7 to allow for numbers of degrees of freedom which differ from the standard model value characterized by $N_\nu = 3$. We use the two-dimensional likelihood functions to simultaneously constrain the baryon-to-photon ...
1311.7308
Yanrui Liu
Yan-Rui Liu
Heavy quark spin selection rules in S-wave meson-antimeson states
to appear in the proceedings of The 6th International Workshop on Charm Physics (CHARM 2013)
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
By studying the spin structure of an S-wave meson-antimeson system in the heavy quark limit, we find two selection rules for the $c\bar{c}$ spin $J_{c\bar{c}}$ being only 1: (a) $J=min(J_\ell)-1$ or $J=max(J_\ell)+1$; (b) $J^C=1^+,2^-,3^+,\cdots$ if the two mesons are different but belong to the same doublet. Here $J...
[ { "created": "Thu, 28 Nov 2013 13:03:39 GMT", "version": "v1" } ]
2013-12-02
[ [ "Liu", "Yan-Rui", "" ] ]
By studying the spin structure of an S-wave meson-antimeson system in the heavy quark limit, we find two selection rules for the $c\bar{c}$ spin $J_{c\bar{c}}$ being only 1: (a) $J=min(J_\ell)-1$ or $J=max(J_\ell)+1$; (b) $J^C=1^+,2^-,3^+,\cdots$ if the two mesons are different but belong to the same doublet. Here $J_\...
1107.5857
Ken-ichi Senda
Kaoru Hagiwara, Naotoshi Okamura, and Ken-ichi Senda
The earth matter effects in neutrino oscillation experiments from Tokai to Kamioka and Korea
null
null
10.1007/JHEP09(2011)082
KEK-TH1100
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the earth matter effects in the Tokai-to-Kamioka-and-Korea experiment (T2KK), which is a proposed extension of the T2K (Tokai-to-Kamioka) neutrino oscillation experiment between J-PARC at Tokai and Super-Kamiokande (SK) in Kamioka, where an additional detector is placed in Korea along the same neutrino beam ...
[ { "created": "Fri, 29 Jul 2011 01:50:15 GMT", "version": "v1" }, { "created": "Thu, 8 Sep 2011 08:44:47 GMT", "version": "v2" } ]
2015-05-30
[ [ "Hagiwara", "Kaoru", "" ], [ "Okamura", "Naotoshi", "" ], [ "Senda", "Ken-ichi", "" ] ]
We study the earth matter effects in the Tokai-to-Kamioka-and-Korea experiment (T2KK), which is a proposed extension of the T2K (Tokai-to-Kamioka) neutrino oscillation experiment between J-PARC at Tokai and Super-Kamiokande (SK) in Kamioka, where an additional detector is placed in Korea along the same neutrino beam li...
hep-ph/0511122
Quentin G. Bailey
Quentin G. Bailey
Lorentz-Violating Electromagnetostatics
6 pages, presented at the Third Meeting on CPT and Lorentz Symmetry, Bloomington, Indiana, August 2004
null
10.1142/9789812702173_0035
null
hep-ph
null
In this talk, the stationary limit of Lorentz-violating electrodynamics is discussed. As illustrated by some simple examples, the general solution includes unconventional mixing of electrostatic and magnetostatic effects. I discuss a high-sensitivity null-type measurement, exploiting Lorentz-violating electromagnetos...
[ { "created": "Thu, 10 Nov 2005 18:46:09 GMT", "version": "v1" } ]
2016-11-03
[ [ "Bailey", "Quentin G.", "" ] ]
In this talk, the stationary limit of Lorentz-violating electrodynamics is discussed. As illustrated by some simple examples, the general solution includes unconventional mixing of electrostatic and magnetostatic effects. I discuss a high-sensitivity null-type measurement, exploiting Lorentz-violating electromagnetosta...
1708.03303
Oleksandr Tomalak
O. Tomalak, B. Pasquini, M. Vanderhaeghen
Two-photon exchange contribution to elastic $e^-$-proton scattering: Full dispersive treatment of $\pi N$ states and comparison with data
43 pages, 21 figures, version published in Phys. Rev. D 96, 096001 (2017)
Phys. Rev. D 96, 096001 (2017)
10.1103/PhysRevD.96.096001
null
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We evaluate the two-photon exchange correction to the elastic electron-proton scattering cross section within a dispersive framework. Besides the elastic contribution, we account for all $\pi N$ intermediate state contributions using the phenomenological MAID fit as an input. We develop a novel method for the analyti...
[ { "created": "Thu, 10 Aug 2017 17:22:21 GMT", "version": "v1" }, { "created": "Fri, 10 Nov 2017 18:28:44 GMT", "version": "v2" } ]
2017-11-15
[ [ "Tomalak", "O.", "" ], [ "Pasquini", "B.", "" ], [ "Vanderhaeghen", "M.", "" ] ]
We evaluate the two-photon exchange correction to the elastic electron-proton scattering cross section within a dispersive framework. Besides the elastic contribution, we account for all $\pi N$ intermediate state contributions using the phenomenological MAID fit as an input. We develop a novel method for the analytica...
0801.4949
Elena G. Ferreiro
E. G. Ferreiro, F. Fleuret and A. Rakotozafindrabe
Transverse momentum dependence of J/psi shadowing effects
4 pages, 4 figures. Final version for journal submission
Eur.Phys.J.C61:859-864,2009
10.1140/epjc/s10052-008-0843-8
null
hep-ph
null
We present a new approach to estimate the effect of the gluon shadowing in nucleus+nucleus collisions and its consequences on the J/psi production yield. Using kinematical information available from the measured J/psi production in proton+proton collisions at \sqrt s = 200 GeV, we build a Glauber Monte Carlo code whi...
[ { "created": "Thu, 31 Jan 2008 18:54:21 GMT", "version": "v1" }, { "created": "Thu, 6 Mar 2008 14:54:50 GMT", "version": "v2" } ]
2009-07-22
[ [ "Ferreiro", "E. G.", "" ], [ "Fleuret", "F.", "" ], [ "Rakotozafindrabe", "A.", "" ] ]
We present a new approach to estimate the effect of the gluon shadowing in nucleus+nucleus collisions and its consequences on the J/psi production yield. Using kinematical information available from the measured J/psi production in proton+proton collisions at \sqrt s = 200 GeV, we build a Glauber Monte Carlo code which...
hep-ph/0306062
Dmitri Kharzeev
B.L. Ioffe and D.E. Kharzeev
On recent puzzles in the production of heavy quarkonia
3 pages, 2 figures
Phys.Rev. D69 (2004) 014016
10.1103/PhysRevD.69.014016
BNL-NT-03/11
hep-ph
null
Recently, several surprising experimental observations in the production of heavy quarkonium have been reported. In $e^+e^-$ annihilation at $\sqrt{s}=10.6$ GeV, Belle Collaboration finds that $J/\psi$ mesons are predominantly produced in association with an extra $\bar{c}c$ pair, with $\sigma(e^+e^- \to J/\psi \bar{...
[ { "created": "Fri, 6 Jun 2003 15:51:52 GMT", "version": "v1" }, { "created": "Sat, 21 Jun 2003 10:02:47 GMT", "version": "v2" } ]
2009-11-10
[ [ "Ioffe", "B. L.", "" ], [ "Kharzeev", "D. E.", "" ] ]
Recently, several surprising experimental observations in the production of heavy quarkonium have been reported. In $e^+e^-$ annihilation at $\sqrt{s}=10.6$ GeV, Belle Collaboration finds that $J/\psi$ mesons are predominantly produced in association with an extra $\bar{c}c$ pair, with $\sigma(e^+e^- \to J/\psi \bar{c}...
1710.05531
Chuan Hung Chen
Chuan-Hung Chen and Yen-Hsun Lin
Study of $B^\pm_c \to (D^0 K^\pm, D^0 \pi^\pm)$ decays
25 pages, 11 figures, 5 tables
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
LHCb observes the $B^+_c \to D^0 K^+$ decay with $R_{D^0 K} = f_c/f_u \times {\cal B}(B^+_c \to D^0 K^+)=(9.3^{+2.8}_{-2.5} \pm 0.6)\times 10^{-7}$. The corresponding branching ratio (BR) of the decay can be estimated as ${\cal B}(B^+_c \to D^0 K^+) \approx (10.01 \pm 3.40)\times 10^{-5}$; however, the theoretical es...
[ { "created": "Mon, 16 Oct 2017 06:38:57 GMT", "version": "v1" } ]
2017-10-17
[ [ "Chen", "Chuan-Hung", "" ], [ "Lin", "Yen-Hsun", "" ] ]
LHCb observes the $B^+_c \to D^0 K^+$ decay with $R_{D^0 K} = f_c/f_u \times {\cal B}(B^+_c \to D^0 K^+)=(9.3^{+2.8}_{-2.5} \pm 0.6)\times 10^{-7}$. The corresponding branching ratio (BR) of the decay can be estimated as ${\cal B}(B^+_c \to D^0 K^+) \approx (10.01 \pm 3.40)\times 10^{-5}$; however, the theoretical esti...
2407.10719
Michael Klasen
M. Klasen
Global analysis of nuclear parton distribution functions
10 pages, 5 figures. Invited plenary talk presented at the 31st International Workshop on Deep Inelastic Scattering (DIS 2024), Grenoble, France, 8-12 April 2024. To appear in the proceedings
null
null
MS-TP-24-15
hep-ph hep-ex nucl-ex nucl-th
http://creativecommons.org/licenses/by/4.0/
We review the theoretical foundations, methodological approaches and current status of the determination of nuclear parton distribution functions (PDFs). A large variety of measurements in fixed-target and collider experiments provide increasingly precise constraints on various aspects of nuclear PDFs, including shad...
[ { "created": "Mon, 15 Jul 2024 13:47:06 GMT", "version": "v1" } ]
2024-07-16
[ [ "Klasen", "M.", "" ] ]
We review the theoretical foundations, methodological approaches and current status of the determination of nuclear parton distribution functions (PDFs). A large variety of measurements in fixed-target and collider experiments provide increasingly precise constraints on various aspects of nuclear PDFs, including shadow...
hep-ph/9809581
Liang Zuo-tang
Liang Zuo-tang (Shandong U.)
Hyperon polarization and single-spin asymmetries in different hadronic reactions
Talk at the 13th International Symposium on High Energy Spin Physics
null
null
null
hep-ph
null
We show that the polarization of hyperons observed in high energy collisions using unpolarized hadron beams and unpolarized nucleon or nuclear targets is closely related to the left-right asymmetries observed in single spin inclusive hadron production processes. The relationship is most obvious for the production of ...
[ { "created": "Tue, 29 Sep 1998 14:52:57 GMT", "version": "v1" } ]
2007-05-23
[ [ "Zuo-tang", "Liang", "", "Shandong U." ] ]
We show that the polarization of hyperons observed in high energy collisions using unpolarized hadron beams and unpolarized nucleon or nuclear targets is closely related to the left-right asymmetries observed in single spin inclusive hadron production processes. The relationship is most obvious for the production of th...
1101.0642
Michal Czakon
M. Czakon
Double-real radiation in hadronic top quark pair production as a proof of a certain concept
44 pages, 10 figures
null
10.1016/j.nuclphysb.2011.03.020
TTK-10-58, SFB/CPP-10-134
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Using the recently introduced STRIPPER approach to double-real radiation, we evaluate the total cross sections for the main partonic channels of the next-to-next-to leading order contributions to top quark pair production in hadronic collisions: gg -> ttgg, gg -> ttqq, qq -> ttgg, qq -> ttq'q', q' != q. The results a...
[ { "created": "Tue, 4 Jan 2011 02:39:56 GMT", "version": "v1" } ]
2015-05-20
[ [ "Czakon", "M.", "" ] ]
Using the recently introduced STRIPPER approach to double-real radiation, we evaluate the total cross sections for the main partonic channels of the next-to-next-to leading order contributions to top quark pair production in hadronic collisions: gg -> ttgg, gg -> ttqq, qq -> ttgg, qq -> ttq'q', q' != q. The results are...
hep-ph/9801299
Juan Garcia-Bellido
Juan Garcia-Bellido (CERN-TH)
Inflation in softly broken Seiberg-Witten models
5 pages, LaTeX with sprocl.sty (included), 1 figure (included with epsf). To appear in the Conference Proceedings of COSMO-97
null
10.1142/9789814447263_0044
CERN-TH/98-20
hep-ph astro-ph
null
In a recent paper we proposed a new model of inflation based on the soft-breaking of N=2 supersymmetric SU(2) Yang-Mills theory. The advantage of such a model is the fact that we can write an exact expression for the effective scalar potential, including perturbative and non-perturbative effects. We find that the sca...
[ { "created": "Wed, 14 Jan 1998 14:22:41 GMT", "version": "v1" } ]
2016-10-26
[ [ "Garcia-Bellido", "Juan", "", "CERN-TH" ] ]
In a recent paper we proposed a new model of inflation based on the soft-breaking of N=2 supersymmetric SU(2) Yang-Mills theory. The advantage of such a model is the fact that we can write an exact expression for the effective scalar potential, including perturbative and non-perturbative effects. We find that the scala...
hep-ph/0210121
Oleg Teryaev
P. Hagler, B. Pire, L. Szymanowski, O.V. Teryaev
Charge and Spin Asymmetries from Pomeron-Odderon Interference
5 pages, 3 eps. figures, talk at the parallel session of ICHEPXXXI
null
10.1016/S0920-5632(03)90586-X
null
hep-ph
null
We study Pomeron-Odderon interference effects giving rise to charge and single-spin asymmetries in diffractive electroproduction of a $\pi^+ \pi^-$ pair. We calculate these asymmetries in the Born approximation of QCD in a kinematical domain accessible to HERA experiments.
[ { "created": "Tue, 8 Oct 2002 14:30:02 GMT", "version": "v1" } ]
2015-06-25
[ [ "Hagler", "P.", "" ], [ "Pire", "B.", "" ], [ "Szymanowski", "L.", "" ], [ "Teryaev", "O. V.", "" ] ]
We study Pomeron-Odderon interference effects giving rise to charge and single-spin asymmetries in diffractive electroproduction of a $\pi^+ \pi^-$ pair. We calculate these asymmetries in the Born approximation of QCD in a kinematical domain accessible to HERA experiments.
1607.08688
Priyanka Sett
Sadhana Dash, Basanta. K. Nandi and Priyanka Sett
Multiplicity distributions for $e^{+}e^{-}$ collisions using Weibull distribution
5 pages, 6 figures
Phys. Rev. D 94, 074044 (2016)
10.1103/PhysRevD.94.074044
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The two parameters Weibull function is used to describe the charged particle multiplicity distribution in $e^{+}e^{-}$ collisions at the highest available energy measured by TASSO and ALEPH experiments. The Weibull distribution has wide applications in naturally evolving processes based on fragmentation and sequentia...
[ { "created": "Fri, 29 Jul 2016 05:44:16 GMT", "version": "v1" }, { "created": "Thu, 8 Sep 2016 14:41:06 GMT", "version": "v2" } ]
2016-11-09
[ [ "Dash", "Sadhana", "" ], [ "Nandi", "Basanta. K.", "" ], [ "Sett", "Priyanka", "" ] ]
The two parameters Weibull function is used to describe the charged particle multiplicity distribution in $e^{+}e^{-}$ collisions at the highest available energy measured by TASSO and ALEPH experiments. The Weibull distribution has wide applications in naturally evolving processes based on fragmentation and sequential ...
hep-ph/0106074
Yongjun Zhang
Yong-Jun Zhang, Bin Zhang, and Bo-Qiang Ma
Detailed Balance and Sea-Quark Flavor Asymmetry of Proton
significant changes in title and content, 12 latex pages, to appear in PLB
Phys.Lett.B523:260-264,2001
10.1016/S0370-2693(01)01266-7
null
hep-ph hep-ex nucl-ex nucl-th
null
In this study, the proton is taken as an ensemble of quark-gluon Fock states. Using the principle of detailed balance, the probabilities of finding every Fock states of the proton are obtained without any parameter. A new origin of the light flavor sea quark asymmetry, i.e., $\bar{u} \not= \bar{d}$, is given as a pur...
[ { "created": "Thu, 7 Jun 2001 05:34:36 GMT", "version": "v1" }, { "created": "Sun, 17 Jun 2001 05:37:10 GMT", "version": "v2" }, { "created": "Wed, 7 Nov 2001 09:44:53 GMT", "version": "v3" } ]
2008-11-26
[ [ "Zhang", "Yong-Jun", "" ], [ "Zhang", "Bin", "" ], [ "Ma", "Bo-Qiang", "" ] ]
In this study, the proton is taken as an ensemble of quark-gluon Fock states. Using the principle of detailed balance, the probabilities of finding every Fock states of the proton are obtained without any parameter. A new origin of the light flavor sea quark asymmetry, i.e., $\bar{u} \not= \bar{d}$, is given as a pure ...
0909.5551
Pengzhi Huang
Peng-Zhi Huang, Hua-Xing Chen, Shi-Lin Zhu
Light vector meson and heavy baryon strong interaction
null
Phys.Rev.D80:094007,2009
10.1103/PhysRevD.80.094007
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the coupling constants between the light vector mesons and heavy baryons within the framework of the light-cone QCD sum rule in the leading order of heavy quark effective theory. Most resulting sum rules are stable with the variations of the Borel parameter and the continuum threshold. The extracted coup...
[ { "created": "Wed, 30 Sep 2009 09:12:42 GMT", "version": "v1" } ]
2009-11-13
[ [ "Huang", "Peng-Zhi", "" ], [ "Chen", "Hua-Xing", "" ], [ "Zhu", "Shi-Lin", "" ] ]
We calculate the coupling constants between the light vector mesons and heavy baryons within the framework of the light-cone QCD sum rule in the leading order of heavy quark effective theory. Most resulting sum rules are stable with the variations of the Borel parameter and the continuum threshold. The extracted coupli...
hep-ph/0108024
Jonathan L. Rosner
Zumin Luo and Jonathan L. Rosner
Information on $B \to \pi \pi$ Provided by the Semileptonic Process $B \to \pi l \nu$
17 pages, LaTeX, 7 figures, revised version resubm. to Phys. Rev. D. Further modifications in abstract, text, and references
Phys.Rev.D65:054027,2002
10.1103/PhysRevD.65.054027
EFI 01-28
hep-ph
null
Analysis of the present data on the semileptonic process $B \to \pi \ell \nu$ indicates that they have not yet reached the precision to provide adequate information on the $B \to \pi$ form factor $F_+(q^2)$, which for $q^2 = m_\pi^2$ is known to be related to the factorized color-favored (``$T$'', or ``tree'') contri...
[ { "created": "Thu, 2 Aug 2001 22:48:49 GMT", "version": "v1" }, { "created": "Mon, 24 Sep 2001 22:33:07 GMT", "version": "v2" }, { "created": "Wed, 17 Oct 2001 14:39:54 GMT", "version": "v3" }, { "created": "Mon, 26 Nov 2001 23:15:09 GMT", "version": "v4" } ]
2014-11-17
[ [ "Luo", "Zumin", "" ], [ "Rosner", "Jonathan L.", "" ] ]
Analysis of the present data on the semileptonic process $B \to \pi \ell \nu$ indicates that they have not yet reached the precision to provide adequate information on the $B \to \pi$ form factor $F_+(q^2)$, which for $q^2 = m_\pi^2$ is known to be related to the factorized color-favored (``$T$'', or ``tree'') contribu...
0807.0896
Soo-hyeon Nam
Chuan-Hung Chen and Soo-hyeon Nam
Left-right mixing on leptonic and semileptonic $b\to u$ decays
11 pages, 6 eps figures
Phys.Lett.B666:462-466,2008
10.1016/j.physletb.2008.07.095
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It has been known that there exists a disagreement emerged between the determination of $|V_{ub}|$ from inclusive $B \to X_u\ell\nu$ decays and exclusive $B \to \pi\ell\nu$ decays. In order to solve the mismatch, we investigate the left-right (LR) mixing effects, denoted by $\xi_u$, in leptonic and semileptonic $b \t...
[ { "created": "Sun, 6 Jul 2008 11:01:14 GMT", "version": "v1" } ]
2008-11-26
[ [ "Chen", "Chuan-Hung", "" ], [ "Nam", "Soo-hyeon", "" ] ]
It has been known that there exists a disagreement emerged between the determination of $|V_{ub}|$ from inclusive $B \to X_u\ell\nu$ decays and exclusive $B \to \pi\ell\nu$ decays. In order to solve the mismatch, we investigate the left-right (LR) mixing effects, denoted by $\xi_u$, in leptonic and semileptonic $b \to ...
2008.08786
Zongjin Ong
Z. Ong, P. Agarwal, H. W. Ang, A. H. Chan, C. H. Oh
Numerical solutions to Giovannini's parton branching equation up to TeV energies at the LHC
11 pages, 14 figures, 8 tables
null
10.1142/S0217732320503253
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Giovannini's parton branching equation is integrated numerically using the 4th-order Runge-Kutta method. Using a simple hadronisation model, a charged-hadron multiplicity distribution is obtained. This model is then fitted to various experimental data up to the TeV scale to study how the Giovannini parameters vary wi...
[ { "created": "Thu, 20 Aug 2020 05:54:58 GMT", "version": "v1" } ]
2021-02-03
[ [ "Ong", "Z.", "" ], [ "Agarwal", "P.", "" ], [ "Ang", "H. W.", "" ], [ "Chan", "A. H.", "" ], [ "Oh", "C. H.", "" ] ]
Giovannini's parton branching equation is integrated numerically using the 4th-order Runge-Kutta method. Using a simple hadronisation model, a charged-hadron multiplicity distribution is obtained. This model is then fitted to various experimental data up to the TeV scale to study how the Giovannini parameters vary with...
hep-ph/0312127
Carlos A. Salgado
C.A. Salgado
Medium-induced gluon radiation and jet quenching in heavy ion collisions
16 pages, 9 postscript figures. Invited brief review for Modern Physics Letters A
Mod.Phys.Lett. A19 (2004) 271-286
10.1142/S0217732304013106
null
hep-ph
null
In this brief review, I summarize the new developments on the description of gluon radiation by energetic quarks traversing a medium as well as the observable consequences in high-energy heavy ion collisions. Information about the initial state is essential for a reliable interpretation of the experimental results an...
[ { "created": "Tue, 9 Dec 2003 18:54:27 GMT", "version": "v1" }, { "created": "Wed, 10 Dec 2003 00:23:51 GMT", "version": "v2" } ]
2009-11-10
[ [ "Salgado", "C. A.", "" ] ]
In this brief review, I summarize the new developments on the description of gluon radiation by energetic quarks traversing a medium as well as the observable consequences in high-energy heavy ion collisions. Information about the initial state is essential for a reliable interpretation of the experimental results and ...
1910.00992
Austin Cummings
Austin Cummings, Roberto Aloisio, Mario Bertaina, Francesca Bisconti, Francesco Fenu, Francesco Salamida
Sensitivity to Atypical Tau Initiated Air Showers For a High-Altitude Optical Cherenkov Detector
ICRC 2019 Proceedings Paper
PoS(ICRC2019)861
null
null
hep-ph astro-ph.IM
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The ANITA collaboration has recently announced the supposed observation of two upward going cosmic ray showers at earth emergence angles $27^{\circ}$ and $35^{\circ}$ with reconstructed energy $\sim$0.6~EeV. Upward air showers (UAS) are expected from tau leptons resulting from the interaction of astrophysical neutrin...
[ { "created": "Wed, 2 Oct 2019 14:51:14 GMT", "version": "v1" } ]
2019-10-04
[ [ "Cummings", "Austin", "" ], [ "Aloisio", "Roberto", "" ], [ "Bertaina", "Mario", "" ], [ "Bisconti", "Francesca", "" ], [ "Fenu", "Francesco", "" ], [ "Salamida", "Francesco", "" ] ]
The ANITA collaboration has recently announced the supposed observation of two upward going cosmic ray showers at earth emergence angles $27^{\circ}$ and $35^{\circ}$ with reconstructed energy $\sim$0.6~EeV. Upward air showers (UAS) are expected from tau leptons resulting from the interaction of astrophysical neutrinos...
hep-ph/9804345
Qinghui Zhang
Q. H. Zhang
Multi-pion Bose-Einstein Correlation effects on three-pion interferometry
5 pages, two figures
Phys.Lett. B406 (1997) 366-372
10.1016/S0370-2693(97)00692-8
null
hep-ph
null
Multi-pion correlations effect on three-pion interferometry is studied. It is shown that multi-pion correlations decrease both the apparent radius of the source and the coherent source parameter derived from three-pion interferometry. The data of OPAL group are discussed.
[ { "created": "Tue, 21 Apr 1998 11:23:54 GMT", "version": "v1" } ]
2016-09-06
[ [ "Zhang", "Q. H.", "" ] ]
Multi-pion correlations effect on three-pion interferometry is studied. It is shown that multi-pion correlations decrease both the apparent radius of the source and the coherent source parameter derived from three-pion interferometry. The data of OPAL group are discussed.
2104.13990
Kei Suzuki
Sachio Iwasaki, Makoto Oka, Kei Suzuki
A review of quarkonia under strong magnetic fields
14 pages, 9 figures, invited contribution to the EPJA topical issue "QCD Phase Diagram in Strong Magnetic Fields"; published version
Eur. Phys. J. A 57, 222 (2021)
10.1140/epja/s10050-021-00533-5
null
hep-ph hep-ex hep-lat nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We review the properties of quarkonia under strong magnetic fields. The main phenomena are (i) mixing between different spin eigenstates, (ii) quark Landau levels and deformation of wave function, (iii) modification of $\bar{Q}Q$ potential, and (iv) the motional Stark effect. For theoretical approaches, we review (i)...
[ { "created": "Wed, 28 Apr 2021 19:36:12 GMT", "version": "v1" }, { "created": "Thu, 22 Jul 2021 10:31:15 GMT", "version": "v2" } ]
2021-07-23
[ [ "Iwasaki", "Sachio", "" ], [ "Oka", "Makoto", "" ], [ "Suzuki", "Kei", "" ] ]
We review the properties of quarkonia under strong magnetic fields. The main phenomena are (i) mixing between different spin eigenstates, (ii) quark Landau levels and deformation of wave function, (iii) modification of $\bar{Q}Q$ potential, and (iv) the motional Stark effect. For theoretical approaches, we review (i) c...
hep-ph/0607239
Adrian Signer
Antonio Pineda, Adrian Signer
Heavy Quark Pair Production near Threshold with Potential Non-Relativistic QCD
35 pages, 11 figures
Nucl.Phys. B762 (2007) 67-94
10.1016/j.nuclphysb.2006.09.025
IPPP/06/51; UB-ECM-PF-06-18
hep-ph
null
We study the effect of the resummation of logarithms for t\bar{t} production near threshold and inclusive electromagnetic decays of heavy quarkonium. This analysis is complete at next-to-next-to-leading order and includes the full resummation of logarithms at next-to-leading-logarithmic accuracy and some partial cont...
[ { "created": "Fri, 21 Jul 2006 12:38:10 GMT", "version": "v1" } ]
2009-11-11
[ [ "Pineda", "Antonio", "" ], [ "Signer", "Adrian", "" ] ]
We study the effect of the resummation of logarithms for t\bar{t} production near threshold and inclusive electromagnetic decays of heavy quarkonium. This analysis is complete at next-to-next-to-leading order and includes the full resummation of logarithms at next-to-leading-logarithmic accuracy and some partial contri...
2310.10927
Huaike Guo
Huai-Ke Guo
Dissipative Effects as New Observables for Cosmological Phase Transitions
7 pages, 3 figures
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We show that dissipative effects during cosmological first order phase transitions lead to a frequency-dependent suppression for the usually dominant gravitational wave production from sound waves, through an analytical modelling of the source based on the sound shell model. This damping effect is more pronounced for...
[ { "created": "Tue, 17 Oct 2023 01:55:05 GMT", "version": "v1" } ]
2023-10-18
[ [ "Guo", "Huai-Ke", "" ] ]
We show that dissipative effects during cosmological first order phase transitions lead to a frequency-dependent suppression for the usually dominant gravitational wave production from sound waves, through an analytical modelling of the source based on the sound shell model. This damping effect is more pronounced for h...
1402.5863
Peng Guo
Peng Guo, Tochtli Y\'epez-Mart\'inez, Adam P. Szczepaniak
Charmonium meson and hybrid radiative transitions
null
Phys. Rev. D 89, 116005 (2014)
10.1103/PhysRevD.89.116005
null
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the non-relativistic limit of the QCD Hamiltonian in the Coulomb gauge, to describe radiative transitions between conventional charmonium states and from the lowest multiplet of $c\bar{c}$ hybrids to charmonium mesons. The results are compared to potential quark models and lattices calculations.
[ { "created": "Mon, 24 Feb 2014 15:51:45 GMT", "version": "v1" } ]
2014-06-11
[ [ "Guo", "Peng", "" ], [ "Yépez-Martínez", "Tochtli", "" ], [ "Szczepaniak", "Adam P.", "" ] ]
We consider the non-relativistic limit of the QCD Hamiltonian in the Coulomb gauge, to describe radiative transitions between conventional charmonium states and from the lowest multiplet of $c\bar{c}$ hybrids to charmonium mesons. The results are compared to potential quark models and lattices calculations.
1410.7061
Ekaterina Christova
Ekaterina Christova and Ivan Todorov
Once more on the W-loop contribution to the Higgs decay into two photons
new discussions added at the end of Sec.3, 3 references added, changes at the end of the Abstract
Bulg. J. Phys. v.42 (2015) 296 -303
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The imaginary part of the Feynman amplitude of the $W$-loop contribution to the Higgs decay into two gammas (viewed as a function of the square of the off shell Higgs momentum) is finite and unambiguous. It is presented as the product of an invariant amplitude ${\cal A}$ times a bilinear in the components of the (on ...
[ { "created": "Sun, 26 Oct 2014 17:22:43 GMT", "version": "v1" }, { "created": "Tue, 18 Nov 2014 17:13:29 GMT", "version": "v2" }, { "created": "Wed, 7 Oct 2015 11:44:19 GMT", "version": "v3" } ]
2015-10-08
[ [ "Christova", "Ekaterina", "" ], [ "Todorov", "Ivan", "" ] ]
The imaginary part of the Feynman amplitude of the $W$-loop contribution to the Higgs decay into two gammas (viewed as a function of the square of the off shell Higgs momentum) is finite and unambiguous. It is presented as the product of an invariant amplitude ${\cal A}$ times a bilinear in the components of the (on sh...
hep-ph/9703305
Arnd Brandenburg
Werner Bernreuther, Arnd Brandenburg, and Peter Uwer (RWTH Aachen)
Next-to-Leading Order QCD Corrections to Three-Jet Cross Sections with Massive Quarks
11 pages, using revtex; 6 postscript figures included. Figures have been changed
Phys.Rev.Lett. 79 (1997) 189-192
10.1103/PhysRevLett.79.189
PITHA 97/5
hep-ph
null
We calculate the cross section for $e^+ e^-$ annihilation into three jets for massive quarks at next-to-leading order in perturbative QCD, both on and off the $Z$ resonance. Our computation allows the implementation of any jet clustering algorithm. We give results for the three-jet cross section involving $b$ quarks ...
[ { "created": "Wed, 12 Mar 1997 13:04:11 GMT", "version": "v1" }, { "created": "Wed, 7 May 1997 16:06:14 GMT", "version": "v2" } ]
2009-10-30
[ [ "Bernreuther", "Werner", "", "RWTH Aachen" ], [ "Brandenburg", "Arnd", "", "RWTH Aachen" ], [ "Uwer", "Peter", "", "RWTH Aachen" ] ]
We calculate the cross section for $e^+ e^-$ annihilation into three jets for massive quarks at next-to-leading order in perturbative QCD, both on and off the $Z$ resonance. Our computation allows the implementation of any jet clustering algorithm. We give results for the three-jet cross section involving $b$ quarks fo...
1907.01621
Carlos M. Reyes
J.R. Nascimento, A.Yu. Petrov, C.M. Reyes
Renormalization in Nonminimal Lorentz-Violating Field Theory
Presented at the Eighth Meeting on CPT and Lorentz Symmetry, Bloomington, Indiana, May 12-16, 2019
null
null
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We provide the first step towards renormalization in a nonminimal Lorentz-violating model consisting of normal scalars and modified fermions with mass dimension five operators. We compute the radiative corrections corresponding to the scalar self-energy, and we show that some divergencies are improved and in the scal...
[ { "created": "Tue, 2 Jul 2019 20:29:19 GMT", "version": "v1" } ]
2019-07-04
[ [ "Nascimento", "J. R.", "" ], [ "Petrov", "A. Yu.", "" ], [ "Reyes", "C. M.", "" ] ]
We provide the first step towards renormalization in a nonminimal Lorentz-violating model consisting of normal scalars and modified fermions with mass dimension five operators. We compute the radiative corrections corresponding to the scalar self-energy, and we show that some divergencies are improved and in the scalar...
1410.1926
Rui Santos
P.M. Ferreira, Renato Guedes, John F. Gunion, Howard E. Haber, Marco O. P. Sampaio and Rui Santos
The Wrong Sign limit in the 2HDM
6 pages, 3 figures. Proceedings of the Second Annual Conference on Large Hadron Collider Physics, Columbia University, New York, U.S.A, June 2-7, 2014. arXiv admin note: text overlap with arXiv:1407.4396
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A sign change in the Higgs couplings to fermions and massive gauge bosons is still allowed in the framework of two-Higgs doublet models (2HDM). In this work we discuss the possible sign changes in the Higgs couplings to fermions and gauge bosons, while reviewing the status of the 8-parameter CP-conserving 2HDM after ...
[ { "created": "Tue, 7 Oct 2014 21:44:59 GMT", "version": "v1" } ]
2014-10-09
[ [ "Ferreira", "P. M.", "" ], [ "Guedes", "Renato", "" ], [ "Gunion", "John F.", "" ], [ "Haber", "Howard E.", "" ], [ "Sampaio", "Marco O. P.", "" ], [ "Santos", "Rui", "" ] ]
A sign change in the Higgs couplings to fermions and massive gauge bosons is still allowed in the framework of two-Higgs doublet models (2HDM). In this work we discuss the possible sign changes in the Higgs couplings to fermions and gauge bosons, while reviewing the status of the 8-parameter CP-conserving 2HDM after th...
2107.08003
Anatoly Kotikov Vassilievich
A. V. Kotikov
Some examples of calculation of massless and massive Feynman integrals
22 pages. arXiv admin note: text overlap with arXiv:2004.06625
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show some examples of calculations of massless and massive Feynman integrals.
[ { "created": "Fri, 16 Jul 2021 16:49:48 GMT", "version": "v1" }, { "created": "Thu, 22 Jul 2021 12:09:36 GMT", "version": "v2" }, { "created": "Mon, 20 Sep 2021 09:31:50 GMT", "version": "v3" } ]
2021-09-21
[ [ "Kotikov", "A. V.", "" ] ]
We show some examples of calculations of massless and massive Feynman integrals.
hep-ph/0311014
Omar Gustavo Miranda
O. G. Miranda, T. I. Rashba, A. I. Rez and J. W. F. Valle
Constraining the neutrino magnetic moment with anti-neutrinos from the Sun
4 pages, 3 figures. Final version to appear in Phys. Rev. Lett
Phys.Rev.Lett.93:051304,2004
10.1103/PhysRevLett.93.051304
IFIC/03-49
hep-ph astro-ph
null
We discuss the impact of different solar neutrino data on the spin-flavor-precession (SFP) mechanism of neutrino conversion. We find that, although detailed solar rates and spectra allow the SFP solution as a sub-leading effect, the recent KamLAND constraint on the solar antineutrino flux places stronger constraints ...
[ { "created": "Mon, 3 Nov 2003 17:48:55 GMT", "version": "v1" }, { "created": "Sun, 6 Jun 2004 09:15:56 GMT", "version": "v2" } ]
2009-09-17
[ [ "Miranda", "O. G.", "" ], [ "Rashba", "T. I.", "" ], [ "Rez", "A. I.", "" ], [ "Valle", "J. W. F.", "" ] ]
We discuss the impact of different solar neutrino data on the spin-flavor-precession (SFP) mechanism of neutrino conversion. We find that, although detailed solar rates and spectra allow the SFP solution as a sub-leading effect, the recent KamLAND constraint on the solar antineutrino flux places stronger constraints to...