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1401.0151
Zhenjun Xiao
Zhen-Jun Xiao and Xin Liu
The two-body hadronic decays of $B_c$ meson in the perturbative QCD approach: A short review
19 pages, 2 figures, 3 tables; Some references are updated. Final version being published in Chinese Science Bulletin
Chin.Sci.Bull. 59 (2014) 3748-3759
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Along with the running of Large Hadron Collider (LHC) located at CERN in November 2009, a large number of data samples of $B_c$ meson have been collected and some hadronic $B_c$ decay modes have been measured by the LHC experiments. In view of the special and important roles of $B_c$ meson decays playing in the heavy...
[ { "created": "Tue, 31 Dec 2013 14:29:00 GMT", "version": "v1" }, { "created": "Fri, 28 Feb 2014 14:02:27 GMT", "version": "v2" }, { "created": "Thu, 31 Jul 2014 17:50:40 GMT", "version": "v3" } ]
2014-08-01
[ [ "Xiao", "Zhen-Jun", "" ], [ "Liu", "Xin", "" ] ]
Along with the running of Large Hadron Collider (LHC) located at CERN in November 2009, a large number of data samples of $B_c$ meson have been collected and some hadronic $B_c$ decay modes have been measured by the LHC experiments. In view of the special and important roles of $B_c$ meson decays playing in the heavy f...
hep-ph/0306264
Ernest Ma
Ernest Ma (UC Riverside), G. Rajasekaran (IMSC, Chennai)
New "Square Root" Model of Lepton Family Cyclic Symmetry
10 pages, no figure
Phys.Rev. D68 (2003) 071302
10.1103/PhysRevD.68.071302
UCRHEP-T356 (June 2003)
hep-ph
null
Following the newly formulated notion of form invariance of the neutrino mass matrix, a complete model of leptons is constructed. It is based on a specific unitary 3 X 3 matrix U in family space, such that U^2 is the simple discrete symmetry nu_e to -nu_e, nu_mu to nu_tau. Thus U also generates the cyclic group Z_4. ...
[ { "created": "Thu, 26 Jun 2003 14:40:00 GMT", "version": "v1" } ]
2009-11-10
[ [ "Ma", "Ernest", "", "UC Riverside" ], [ "Rajasekaran", "G.", "", "IMSC, Chennai" ] ]
Following the newly formulated notion of form invariance of the neutrino mass matrix, a complete model of leptons is constructed. It is based on a specific unitary 3 X 3 matrix U in family space, such that U^2 is the simple discrete symmetry nu_e to -nu_e, nu_mu to nu_tau. Thus U also generates the cyclic group Z_4. Th...
hep-ph/0302211
Alexey Gulov
V.I. Demchik, A.V. Gulov, V.V. Skalozub, and A.Yu. Tischenko
Signals of the Abelian Z' boson within the analysis of the LEP2 data
15 pages
Phys.Atom.Nucl. 67 (2004) 1312-1320; Yad.Fiz. 67 (2004) 1335-1343
10.1134/1.1777286
null
hep-ph
null
The preliminary LEP data on the e^+e^- -> l^+l^- scattering are analysed to establish a model-independent search for the signals of virtual states of the Abelian Z' boson. The recently introduced observables give a possibility to pick up uniquely the Abelian Z' signals in these processes. The mean values of the obser...
[ { "created": "Mon, 24 Feb 2003 16:12:09 GMT", "version": "v1" } ]
2009-11-10
[ [ "Demchik", "V. I.", "" ], [ "Gulov", "A. V.", "" ], [ "Skalozub", "V. V.", "" ], [ "Tischenko", "A. Yu.", "" ] ]
The preliminary LEP data on the e^+e^- -> l^+l^- scattering are analysed to establish a model-independent search for the signals of virtual states of the Abelian Z' boson. The recently introduced observables give a possibility to pick up uniquely the Abelian Z' signals in these processes. The mean values of the observa...
hep-ph/9709254
null
Leszek Motyka, Kacper Zalewski
Mass spectra and leptonic decay widths of heavy quarkonia
Latex file, 19 pages; Zs. f. Ph. C in print
Eur.Phys.J.C4:107-114,1998
10.1007/s100520050190
TPJU - 8/97
hep-ph
null
A nonrelativistic Hamiltonian with plausible spin dependent corrections is proposed for the quarkonia below their respective strong decay thresholds. With only six free parameters this model reproduces the nine known masses of the bottomonia within about 1 MeV, the six known masses of the charmonia within a few MeV a...
[ { "created": "Fri, 5 Sep 1997 11:58:00 GMT", "version": "v1" } ]
2011-09-13
[ [ "Motyka", "Leszek", "" ], [ "Zalewski", "Kacper", "" ] ]
A nonrelativistic Hamiltonian with plausible spin dependent corrections is proposed for the quarkonia below their respective strong decay thresholds. With only six free parameters this model reproduces the nine known masses of the bottomonia within about 1 MeV, the six known masses of the charmonia within a few MeV and...
hep-ph/9709273
null
V. Zanchin, A. Maia Jr., W. Craig and R. Brandenberger (Brown Univ.)
Reheating in the Presence of Noise
26 pages, 2 figures, uses LATEX
Phys.Rev. D57 (1998) 4651-4662
10.1103/PhysRevD.57.4651
BROWN-HET-1072
hep-ph astro-ph
null
Explosive particle production due to parametric resonance is a crucial feature of reheating in inflationary cosmology. Coherent oscillations of the inflaton field act as a periodically varying mass in the evolution equation for matter fields which couple to the inflaton. This in turn results in the parametric resonan...
[ { "created": "Sun, 7 Sep 1997 16:17:42 GMT", "version": "v1" } ]
2009-10-30
[ [ "Zanchin", "V.", "", "Brown Univ." ], [ "Maia", "A.", "Jr.", "Brown Univ." ], [ "Craig", "W.", "", "Brown Univ." ], [ "Brandenberger", "R.", "", "Brown Univ." ] ]
Explosive particle production due to parametric resonance is a crucial feature of reheating in inflationary cosmology. Coherent oscillations of the inflaton field act as a periodically varying mass in the evolution equation for matter fields which couple to the inflaton. This in turn results in the parametric resonance...
1704.07743
Long Ma
Long Ma, Xin Dong, Huan-Zhong Huang, and Yu-Gang Ma
Study of a background reconstruction method for the measurement of D-meson azimuthal angular correlations
13 pages, 7 figures
Nuclear Science and Techniques 32, 61 (2021)
10.1007/s41365-021-00896-w
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study experimental background reconstruction methods for the measurement of $D-\overline{D}$ correlation using a PYTHIA simulation. Like-sign and side-band background methods that are widely used in the experimental measurements of single $D$-meson production yields were deployed for the correlation background stu...
[ { "created": "Mon, 24 Apr 2017 17:06:11 GMT", "version": "v1" }, { "created": "Sat, 26 Jun 2021 09:57:30 GMT", "version": "v2" } ]
2021-06-29
[ [ "Ma", "Long", "" ], [ "Dong", "Xin", "" ], [ "Huang", "Huan-Zhong", "" ], [ "Ma", "Yu-Gang", "" ] ]
We study experimental background reconstruction methods for the measurement of $D-\overline{D}$ correlation using a PYTHIA simulation. Like-sign and side-band background methods that are widely used in the experimental measurements of single $D$-meson production yields were deployed for the correlation background study...
hep-ph/0112069
Mingzhe Li
Mingzhe Li, Xiulian Wang, Bo Feng and Xinmin Zhang
Quintessence and Spontaneous Leptogenesis
7pages,1figure
Phys.Rev. D65 (2002) 103511
10.1103/PhysRevD.65.103511
null
hep-ph astro-ph
null
We propose in this paper a scenario of spontaneous baryogenesis in cosmological models of Quintessence by introducing a derivative coupling of the Quintessence scalar $Q$ to the baryon current $J_B^{\mu}$ or the current of the baryon number minus lepton number $J_{B-L}^{\mu}$. We find that with a dimension-5 operator...
[ { "created": "Wed, 5 Dec 2001 04:22:44 GMT", "version": "v1" } ]
2009-11-07
[ [ "Li", "Mingzhe", "" ], [ "Wang", "Xiulian", "" ], [ "Feng", "Bo", "" ], [ "Zhang", "Xinmin", "" ] ]
We propose in this paper a scenario of spontaneous baryogenesis in cosmological models of Quintessence by introducing a derivative coupling of the Quintessence scalar $Q$ to the baryon current $J_B^{\mu}$ or the current of the baryon number minus lepton number $J_{B-L}^{\mu}$. We find that with a dimension-5 operator $...
0808.1605
Sourabh Dube
Sourabh Dube, Julian Glatzer, Sunil Somalwar, Alexander Sood, Scott Thomas
Addressing the Multi-Channel Inverse Problem at High Energy Colliders: A Model Independent Approach to the Search for New Physics with Trileptons
17 pages, 7 figures Changed content cosmetic changes for submission to JHEP
null
10.1088/0954-3899/39/8/085004
NHETC-2008-39
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We describe a method for interpreting trilepton searches at high energy colliders in a model-independent fashion and apply it to the recent searches at the Tevatron. The key step is to recognize that the trilepton signature is comprised of four experimentally very different channels defined by the number of tau-lepto...
[ { "created": "Tue, 12 Aug 2008 02:50:52 GMT", "version": "v1" }, { "created": "Sat, 25 Jul 2009 01:07:53 GMT", "version": "v2" }, { "created": "Mon, 24 Aug 2009 21:35:47 GMT", "version": "v3" }, { "created": "Thu, 2 Feb 2012 15:48:29 GMT", "version": "v4" }, { "cr...
2015-05-13
[ [ "Dube", "Sourabh", "" ], [ "Glatzer", "Julian", "" ], [ "Somalwar", "Sunil", "" ], [ "Sood", "Alexander", "" ], [ "Thomas", "Scott", "" ] ]
We describe a method for interpreting trilepton searches at high energy colliders in a model-independent fashion and apply it to the recent searches at the Tevatron. The key step is to recognize that the trilepton signature is comprised of four experimentally very different channels defined by the number of tau-leptons...
2203.07563
Michael J. Longo
Michael J. Longo
Neutron size from high energy scattering data
Submitted to Physical. Rev. Comments
null
null
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
Alvarado, Aranda, and Bonilla propose a sub-GeV U(1)R gauge boson model to explain the proton charge radius discrepancy. Their model assumes opposite sign U(1)R charge assignments for up and down quarks in the nucleon. I point out that might cause a difference between neutron and proton mass radii that contradicts ex...
[ { "created": "Tue, 15 Mar 2022 00:08:57 GMT", "version": "v1" } ]
2022-03-16
[ [ "Longo", "Michael J.", "" ] ]
Alvarado, Aranda, and Bonilla propose a sub-GeV U(1)R gauge boson model to explain the proton charge radius discrepancy. Their model assumes opposite sign U(1)R charge assignments for up and down quarks in the nucleon. I point out that might cause a difference between neutron and proton mass radii that contradicts exis...
1609.09402
Jue Zhang
Stephen F. King, Jue Zhang and Shun Zhou
Renormalisation Group Corrections to the Littlest Seesaw Model and Maximal Atmospheric Mixing
28 pages, 4 figures, 5 tables; v2: references added, include the scenario where both mass scales of right-handed neutrinos are varied, version to be published in JHEP
JHEP 12 (2016) 023
10.1007/JHEP12(2016)023
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Littlest Seesaw (LS) model involves two right-handed neutrinos and a very constrained Dirac neutrino mass matrix, involving one texture zero and two independent Dirac masses, leading to a highly predictive scheme in which all neutrino masses and the entire PMNS matrix is successfully predicted in terms of just tw...
[ { "created": "Thu, 29 Sep 2016 16:01:42 GMT", "version": "v1" }, { "created": "Tue, 29 Nov 2016 13:14:41 GMT", "version": "v2" } ]
2016-12-12
[ [ "King", "Stephen F.", "" ], [ "Zhang", "Jue", "" ], [ "Zhou", "Shun", "" ] ]
The Littlest Seesaw (LS) model involves two right-handed neutrinos and a very constrained Dirac neutrino mass matrix, involving one texture zero and two independent Dirac masses, leading to a highly predictive scheme in which all neutrino masses and the entire PMNS matrix is successfully predicted in terms of just two ...
0809.0404
Kausik Pal
Kausik Pal, Subhrajyoti Biswas, Abhee K. Dutt-Mazumder
Spin dependent Fermi Liquid parameters and properties of polarized quark matter
20 pages, 8 figures, references added, to appear in Physical Review C
Phys.Rev.C79:015205,2009
10.1103/PhysRevC.79.015205
null
hep-ph astro-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the spin dependent Fermi liquid parameters (FLPs), single particle energies and energy densities of various spin states of polarized quark matter. The expressions for the incompressibility($K$) and sound velocity ($c_1$) in terms of the spin dependent FLPs and polarization parameter $(\xi)$ are derived. ...
[ { "created": "Tue, 2 Sep 2008 11:24:32 GMT", "version": "v1" }, { "created": "Mon, 5 Jan 2009 11:50:39 GMT", "version": "v2" } ]
2009-01-28
[ [ "Pal", "Kausik", "" ], [ "Biswas", "Subhrajyoti", "" ], [ "Dutt-Mazumder", "Abhee K.", "" ] ]
We calculate the spin dependent Fermi liquid parameters (FLPs), single particle energies and energy densities of various spin states of polarized quark matter. The expressions for the incompressibility($K$) and sound velocity ($c_1$) in terms of the spin dependent FLPs and polarization parameter $(\xi)$ are derived. Es...
1010.0692
Masaki Asano
Masaki Asano, Hyung Do Kim, Ryuichiro Kitano, Yasuhiro Shimizu
Natural Supersymmetry at the LHC
19 pages, 6 figures, 1 table
JHEP 1012:019,2010
10.1007/JHEP12(2010)019
TU-873
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
If the minimal supersymmetric standard model is the solution to the hierarchy problem, the scalar top quark (stop) and the Higgsino should weigh around the electroweak scale such as 200 GeV. A low messenger scale, which results in a light gravitino, is also suggested to suppress the quantum corrections to the Higgs m...
[ { "created": "Mon, 4 Oct 2010 20:13:55 GMT", "version": "v1" } ]
2015-03-17
[ [ "Asano", "Masaki", "" ], [ "Kim", "Hyung Do", "" ], [ "Kitano", "Ryuichiro", "" ], [ "Shimizu", "Yasuhiro", "" ] ]
If the minimal supersymmetric standard model is the solution to the hierarchy problem, the scalar top quark (stop) and the Higgsino should weigh around the electroweak scale such as 200 GeV. A low messenger scale, which results in a light gravitino, is also suggested to suppress the quantum corrections to the Higgs mas...
hep-ph/0001109
Merab Gogberashvili
Merab Gogberashvili
Brane-Universe in Six Dimensions with Two Times
6 pages, latex, no figures
Phys.Lett. B484 (2000) 124-128
10.1016/S0370-2693(00)00614-6
null
hep-ph gr-qc hep-th
null
Brane-Universe model embedded in 6-dimensional space-time with the signature (2+4) is considered. A matter is gravitationally trapped in three space dimensions, but both time-like directions are open. Choosing of the dimension and the signature of the model is initiated with the conformal symmetry for massless partic...
[ { "created": "Thu, 13 Jan 2000 08:01:16 GMT", "version": "v1" } ]
2009-10-31
[ [ "Gogberashvili", "Merab", "" ] ]
Brane-Universe model embedded in 6-dimensional space-time with the signature (2+4) is considered. A matter is gravitationally trapped in three space dimensions, but both time-like directions are open. Choosing of the dimension and the signature of the model is initiated with the conformal symmetry for massless particle...
hep-ph/9611361
null
Yu. S. Kalashnikova and A. V. Nefediev (ITEP, Moscow)
Relativistic quantum mechanics in the einbein field formalism
LaTeX 2.09, 16 pages, no figures
Phys.Atom.Nucl. 60 (1997) 1389-1394; Yad.Fiz. 60 (1997) 1529-1535
null
ITEP-45-96
hep-ph
null
The system of two relativistic particles with einbein fields is quantized as a constrained system.A method of the introduction of the Newton--Wigner collective coordinate is discussed in presence of different gauge fixing conditions. Some arguments are involved in the favour of Lorents covariant gauge fixing conditio...
[ { "created": "Tue, 19 Nov 1996 12:37:21 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kalashnikova", "Yu. S.", "", "ITEP, Moscow" ], [ "Nefediev", "A. V.", "", "ITEP, Moscow" ] ]
The system of two relativistic particles with einbein fields is quantized as a constrained system.A method of the introduction of the Newton--Wigner collective coordinate is discussed in presence of different gauge fixing conditions. Some arguments are involved in the favour of Lorents covariant gauge fixing conditions...
2110.02241
Fabian Rennecke
Swagato Mukherjee, Fabian Rennecke and Vladimir V. Skokov
Analytical structure of the equation of state at finite density: Resummation versus expansion in a low energy model
9 pages, 9 figures; matches the published version
null
10.1103/PhysRevD.105.014026
null
hep-ph hep-lat hep-th nucl-th
http://creativecommons.org/licenses/by/4.0/
For theories plagued with a sign problem at finite density, a Taylor expansion in the chemical potential is frequently used for lattice gauge theory based computations of the equation of state. Recently, in arXiv:2106.03165, a new resummation scheme was proposed for such an expansion that resums contributions of corr...
[ { "created": "Tue, 5 Oct 2021 18:00:13 GMT", "version": "v1" }, { "created": "Mon, 28 Mar 2022 20:44:57 GMT", "version": "v2" } ]
2022-03-30
[ [ "Mukherjee", "Swagato", "" ], [ "Rennecke", "Fabian", "" ], [ "Skokov", "Vladimir V.", "" ] ]
For theories plagued with a sign problem at finite density, a Taylor expansion in the chemical potential is frequently used for lattice gauge theory based computations of the equation of state. Recently, in arXiv:2106.03165, a new resummation scheme was proposed for such an expansion that resums contributions of correl...
hep-ph/0011183
Jon Rosner
Jonathan L. Rosner
Factorization vs. Flavor SU(3) in Charmless B Decays
18 pages, LaTeX, 1 figure, to be published in Proceedings of Beauty 2000, Kibbutz Maagan, Israel, September 13-18, 2000, edited by S. Erhan, Y. Rozen, and P. E. Schlein, Nucl. Inst. Meth. A, 2001
Nucl.Instrum.Meth.A462:44-51,2001
10.1016/S0168-9002(01)00022-5
EFI 2000-41
hep-ph
null
Two types of predictions for charmless B decays are compared. One involves estimates based on factorization and models for form factors, while the other involves the use of flavor SU(3), sometimes with assumptions about the smallness of certain amplitudes. After a comparison of some factorization predictions with rec...
[ { "created": "Tue, 14 Nov 2000 23:11:39 GMT", "version": "v1" } ]
2011-03-23
[ [ "Rosner", "Jonathan L.", "" ] ]
Two types of predictions for charmless B decays are compared. One involves estimates based on factorization and models for form factors, while the other involves the use of flavor SU(3), sometimes with assumptions about the smallness of certain amplitudes. After a comparison of some factorization predictions with recen...
hep-ph/0212161
N. Nikolaev
I.P. Ivanov (Inst. Math., Novosibirsk), N.N. Nikolaev (IKP, Juelich and Landau Inst., Chernogolovka), W. Sch\"afer (IKP, Juelich), B.G. Zakharov (Landau Inst., Chernogolovka), V.R. Zoller (ITEP, Moscow)
Lectures on Diffraction and Saturation of Nuclear Partons in DIS off Heavy Nuclei
The notes of lectures presented by N.N.N. at the XXXVI St.Petersburg Nuclear Physics Institute Winter School on Nuclear and Particle Physics & VIII St.Petersburg School on Theoretical Physics, St.Petersburg, Repino, February 25 - March 3, 2002, 36 pages, 10 figures. Several typos corrected
null
null
null
hep-ph hep-ex nucl-ex nucl-th
null
The Lorentz contraction of ultrarelativistic nuclei entails a spatial overlap and fusion (recombination, saturation) of partons belonging to different nucleons at the same impact parameter. In these lectures we present a consistent description of the fusion of partons in terms of nuclear attenuation of color dipole s...
[ { "created": "Wed, 11 Dec 2002 17:44:08 GMT", "version": "v1" }, { "created": "Thu, 10 Apr 2003 16:07:50 GMT", "version": "v2" } ]
2007-05-23
[ [ "Ivanov", "I. P.", "", "Inst. Math., Novosibirsk" ], [ "Nikolaev", "N. N.", "", "IKP, Juelich\n and Landau Inst., Chernogolovka" ], [ "Schäfer", "W.", "", "IKP, Juelich" ], [ "Zakharov", "B. G.", "", "Landau Inst., Chernogolovka" ], ...
The Lorentz contraction of ultrarelativistic nuclei entails a spatial overlap and fusion (recombination, saturation) of partons belonging to different nucleons at the same impact parameter. In these lectures we present a consistent description of the fusion of partons in terms of nuclear attenuation of color dipole sta...
hep-ph/9802274
Vladimir Shevchenko
V.I.Shevchenko (ITEP)
QCD Field Strength Correlator at the One-Loop Order
LaTeX, 13 pages, 2 eps figures; comments added
null
null
ITEP-PH-01-98
hep-ph
null
The leading perturbative contributions into the two-point gauge-invariant correlator $Tr<gF(x)U(x,0)U(0,y)F(y)U(y,0)U(0,x)>$ are calculated at the one-loop order. It is shown, that nonlocal condensate is nonzero at this order. The relation with the renormalization properties of Wilson loops is discussed.
[ { "created": "Mon, 9 Feb 1998 11:46:24 GMT", "version": "v1" }, { "created": "Thu, 12 Feb 1998 16:21:01 GMT", "version": "v2" }, { "created": "Wed, 18 Mar 1998 13:32:37 GMT", "version": "v3" } ]
2007-05-23
[ [ "Shevchenko", "V. I.", "", "ITEP" ] ]
The leading perturbative contributions into the two-point gauge-invariant correlator $Tr<gF(x)U(x,0)U(0,y)F(y)U(y,0)U(0,x)>$ are calculated at the one-loop order. It is shown, that nonlocal condensate is nonzero at this order. The relation with the renormalization properties of Wilson loops is discussed.
hep-ph/9607285
Cheuk-Yin Wong
Cheuk-Yin Wong (Oak Ridge National Laboratory)
Suppression of J/psi and Psi' Production in High-Energy Pb on Pb Collisions
4 pages (REVTeX), includes 3 eps figures; revised to update results
Phys.Rev.C55:2621-2624,1997
10.1103/PhysRevC.55.2621
ORNL-CTP-96-07
hep-ph nucl-th
null
The anomalous J/psi suppression in Pb-Pb collisions at 158A GeV observed recently by NA50 can be explained as due to the transition to a new phase of strong J/psi absorption, which sets in when the local energy density exceeds about 3.4 GeV/fm**3.
[ { "created": "Wed, 10 Jul 1996 21:25:01 GMT", "version": "v1" }, { "created": "Fri, 13 Dec 1996 16:44:44 GMT", "version": "v2" } ]
2008-11-26
[ [ "Wong", "Cheuk-Yin", "", "Oak Ridge National Laboratory" ] ]
The anomalous J/psi suppression in Pb-Pb collisions at 158A GeV observed recently by NA50 can be explained as due to the transition to a new phase of strong J/psi absorption, which sets in when the local energy density exceeds about 3.4 GeV/fm**3.
hep-ph/9702295
Rizos Ioannis
J. Rizos(SISSA & Ioannina) and K. Tamvakis (Ioannina)
String scale unification in an SU(6)xSU(2) GUT
15 pages, Latex2e, three figures included, comments added, published version
Phys.Lett. B414 (1997) 277-287
10.1016/S0370-2693(97)01181-7
SISSA/107/96/EP
hep-ph
null
We construct and analyze an $SU(6)\times SU(2)$ GUT. The model is k=1 string embedable in the sense that we employ only chiral representations allowed at the k=1 level of the associated Ka\v{c}-Moody Algebra. Both cases $SU(6)\times SU(2)_{L}$ and $SU(6)\times SU(2)_{R}$ are realized. The model is characterized by th...
[ { "created": "Mon, 10 Feb 1997 12:02:51 GMT", "version": "v1" }, { "created": "Wed, 26 Feb 1997 15:43:25 GMT", "version": "v2" }, { "created": "Mon, 26 Jan 1998 08:34:09 GMT", "version": "v3" } ]
2009-10-30
[ [ "Rizos", "J.", "", "SISSA & Ioannina" ], [ "Tamvakis", "K.", "", "Ioannina" ] ]
We construct and analyze an $SU(6)\times SU(2)$ GUT. The model is k=1 string embedable in the sense that we employ only chiral representations allowed at the k=1 level of the associated Ka\v{c}-Moody Algebra. Both cases $SU(6)\times SU(2)_{L}$ and $SU(6)\times SU(2)_{R}$ are realized. The model is characterized by the ...
hep-ph/9908413
Sandy Donnachie
A. Donnachie, H.G. Dosch, M. Rueter
Gamma*Gamma* Reactions at High Energies
21 pages, 5 figures
Eur.Phys.J.C13:141-150,2000
10.1007/s100520000268
null
hep-ph
null
The total hadronic gamma*gamma* cross sections at high energy are calculated as a function of energy and photon virtuality in a model combining Regge exchange, the quark box diagram (a fixed pole in Regge language) and soft and hard pomeron exchanges evaluated in the context of dipole-dipole scattering. Good agreemen...
[ { "created": "Thu, 19 Aug 1999 13:45:40 GMT", "version": "v1" } ]
2015-06-25
[ [ "Donnachie", "A.", "" ], [ "Dosch", "H. G.", "" ], [ "Rueter", "M.", "" ] ]
The total hadronic gamma*gamma* cross sections at high energy are calculated as a function of energy and photon virtuality in a model combining Regge exchange, the quark box diagram (a fixed pole in Regge language) and soft and hard pomeron exchanges evaluated in the context of dipole-dipole scattering. Good agreement ...
hep-ph/0102224
Andrei Belitsky
A.V. Belitsky, D. M\"uller
Resummation of target mass corrections in two-photon processes: twist-two sector
11 pages, LaTeX, no figures
Phys.Lett. B507 (2001) 173-182
10.1016/S0370-2693(01)00425-7
null
hep-ph
null
We develop a formalism for the resummation of target mass corrections in off-forward two-photon amplitudes given by a chronological product of electromagnetic currents, arising in e.g. deeply virtual Compton scattering. The method is based on a relation of composite operators with a definite twist to harmonic tensors...
[ { "created": "Sun, 18 Feb 2001 19:39:05 GMT", "version": "v1" }, { "created": "Thu, 22 Feb 2001 13:51:11 GMT", "version": "v2" } ]
2009-11-07
[ [ "Belitsky", "A. V.", "" ], [ "Müller", "D.", "" ] ]
We develop a formalism for the resummation of target mass corrections in off-forward two-photon amplitudes given by a chronological product of electromagnetic currents, arising in e.g. deeply virtual Compton scattering. The method is based on a relation of composite operators with a definite twist to harmonic tensors, ...
2012.00474
Fabian Krinner
Fabian Michael Krinner and Stephan Paul
New developments in model-independent Partial-Wave Analysis
Proceedings for the 23rd High-Energy Physics International Conference in Quantum ChromoDynamics (QCD 2020), virtually held from October 27th to October 30th in Montpellier, France; five pages, four figures
Nucl.Part.Phys.Proc. 312-317 (2021) 48-52
10.1016/j.nuclphysbps.2021.05.013
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Partial-wave analyses (PWA) are an essential tool for studying resonance structures in decays with hadronic multi-body final states. For several years, more model-independent approaches to such analyses have been used for various decay final states. However, up to now, these methods have mostly been applied to sub-se...
[ { "created": "Tue, 1 Dec 2020 13:26:33 GMT", "version": "v1" } ]
2021-09-07
[ [ "Krinner", "Fabian Michael", "" ], [ "Paul", "Stephan", "" ] ]
Partial-wave analyses (PWA) are an essential tool for studying resonance structures in decays with hadronic multi-body final states. For several years, more model-independent approaches to such analyses have been used for various decay final states. However, up to now, these methods have mostly been applied to sub-sets...
2007.13748
Yuber F. Perez-Gonzalez
Andr\'e de Gouv\^ea, Ivan Martinez-Soler, Yuber F. Perez-Gonzalez, Manibrata Sen
Fundamental physics with the diffuse supernova background neutrinos
21 pages, 11 figures, new channel to measure H0 with neutrinos; references included, small corrections, matches version published in PRD
Phys. Rev. D 102, 123012 (2020)
10.1103/PhysRevD.102.123012
NUHEP-TH/20-08, FERMILAB-PUB-20-353-T
hep-ph astro-ph.CO astro-ph.SR hep-ex
http://creativecommons.org/licenses/by/4.0/
The Universe is awash with tens-of-MeV neutrinos of all species coming from all past core-collapse supernovae. These have never been observed, but this state of affairs will change in the near future. In the less than ten years, the Super-Kamiokande experiment, loaded with gadolinium, is expected to collect dozens of...
[ { "created": "Mon, 27 Jul 2020 18:00:00 GMT", "version": "v1" }, { "created": "Mon, 7 Dec 2020 18:31:36 GMT", "version": "v2" } ]
2021-01-04
[ [ "de Gouvêa", "André", "" ], [ "Martinez-Soler", "Ivan", "" ], [ "Perez-Gonzalez", "Yuber F.", "" ], [ "Sen", "Manibrata", "" ] ]
The Universe is awash with tens-of-MeV neutrinos of all species coming from all past core-collapse supernovae. These have never been observed, but this state of affairs will change in the near future. In the less than ten years, the Super-Kamiokande experiment, loaded with gadolinium, is expected to collect dozens of e...
hep-ph/0009131
null
M. Shifman
Quark-Hadron Duality
Based on the talks delivered at the VIII-th International Symposium on Heavy Flavor Physics, Southampton, UK, 25-29 July 1999, and the International Workshop "Gribov-70", Orsay, France, 27-29 March 2000. To be published in the Boris Ioffe Festschrift "At the Frontier of Particle Physics/Handbook of QCD", Ed. M....
null
10.1142/9789812810458_0032
TPI-MINN-00/44, UMN-TH-1920/00
hep-ph
null
I review the notion of the quark-hadron duality from the modern perspective. Both, the theoretical foundation and practical applications are discussed. The proper theoretical framework in which the problem can be formulated and treated is Wilson's operator product expansion (OPE). Two models developed for the descrip...
[ { "created": "Mon, 11 Sep 2000 17:23:58 GMT", "version": "v1" } ]
2016-11-23
[ [ "Shifman", "M.", "" ] ]
I review the notion of the quark-hadron duality from the modern perspective. Both, the theoretical foundation and practical applications are discussed. The proper theoretical framework in which the problem can be formulated and treated is Wilson's operator product expansion (OPE). Two models developed for the descripti...
hep-ph/9807325
Yasunori Nomura
Yasunori Nomura and T. Yanagida
Bi-Maximal Neutrino Mixing in SO(10)_{GUT}
9 pages, Latex
Phys.Rev.D59:017303,1999
10.1103/PhysRevD.59.017303
UT-823
hep-ph
null
We find a grand unified SO(10) model which accommodates the bi-maximal neutrino mixing for vacuum-oscillation solutions to the atmospheric and the solar neutrino problems. This model maintains the original SO(10) mass relation between neutrino and up-type quark masses, $m_{\nu_2} / m_{\nu_3} \sim (m_{c}/m_{t})^2$.
[ { "created": "Fri, 10 Jul 1998 08:24:31 GMT", "version": "v1" }, { "created": "Tue, 20 Oct 1998 09:28:49 GMT", "version": "v2" } ]
2009-09-29
[ [ "Nomura", "Yasunori", "" ], [ "Yanagida", "T.", "" ] ]
We find a grand unified SO(10) model which accommodates the bi-maximal neutrino mixing for vacuum-oscillation solutions to the atmospheric and the solar neutrino problems. This model maintains the original SO(10) mass relation between neutrino and up-type quark masses, $m_{\nu_2} / m_{\nu_3} \sim (m_{c}/m_{t})^2$.
1208.2021
Victo Dos Santos Filho
Clayton S. Mello, Jos\'e P. Cruz Filho, Edson O. da Silva, J. P. B. C. de Melo, Bruno El-Bennich and Victo S. Filho
Electromagnetic Structure of the Pion
Paper with 4 pages, 1 figure, presented in XII HADRON PHYSICS Conference - to appear in AIP Conference Proceedings
null
10.1063/1.4795990
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, we analyze the electromagnetic structure of the pion. We calculate its electromagnetic radius and electromagnetic form factor in low and intermediate momentum range. Such observables are determined by means of a theoretical model that takes into account the constituent quark and antiquark of the pion wi...
[ { "created": "Thu, 9 Aug 2012 19:45:53 GMT", "version": "v1" }, { "created": "Wed, 20 Feb 2013 15:33:07 GMT", "version": "v2" } ]
2015-06-11
[ [ "Mello", "Clayton S.", "" ], [ "Filho", "José P. Cruz", "" ], [ "da Silva", "Edson O.", "" ], [ "de Melo", "J. P. B. C.", "" ], [ "El-Bennich", "Bruno", "" ], [ "Filho", "Victo S.", "" ] ]
In this work, we analyze the electromagnetic structure of the pion. We calculate its electromagnetic radius and electromagnetic form factor in low and intermediate momentum range. Such observables are determined by means of a theoretical model that takes into account the constituent quark and antiquark of the pion with...
2110.14776
Tobias Huber
Jing Gao, Tobias Huber, Yao Ji, Yu-Ming Wang
The pion-photon transition form factor at two loops in QCD
12 pages, 5 figures. Contribution to the 15th International Symposium on Radiative Corrections (RADCOR) and the XIX Workshop on Radiative Corrections for the LHC and Future Colliders (LoopFest)
null
null
SI-HEP-2021-28, P3H-21-083, TUM-HEP-1369/21
hep-ph
http://creativecommons.org/licenses/by/4.0/
We report on the fully analytic calculation of the leading-power contribution to the photon-pion transition form factor $\gamma \, \gamma^{\ast} \to \pi^0$ at two loops in QCD. The applied techniques are based on hard-collinear factorization, together with modern multi-loop methods. We focus both, on the technical de...
[ { "created": "Wed, 27 Oct 2021 21:13:09 GMT", "version": "v1" } ]
2021-10-29
[ [ "Gao", "Jing", "" ], [ "Huber", "Tobias", "" ], [ "Ji", "Yao", "" ], [ "Wang", "Yu-Ming", "" ] ]
We report on the fully analytic calculation of the leading-power contribution to the photon-pion transition form factor $\gamma \, \gamma^{\ast} \to \pi^0$ at two loops in QCD. The applied techniques are based on hard-collinear factorization, together with modern multi-loop methods. We focus both, on the technical deta...
hep-ph/0105197
Xiangdong Ji
Jiunn-Wei Chen and Xiangdong Ji
Is the Sullivan Process Compatible with QCD Chiral Dynamics?
2 pages, two figures included
Phys.Lett.B523:107-110,2001
10.1016/S0370-2693(01)01337-5
null
hep-ph hep-lat nucl-th
null
We calculate the leading non-analytic quark-mass dependence in the moments of isovector quark distributions using heavy-baryon chiral perturbation theory. The results differ from those obtained from the Sullivan process in which hard scattering occurs through the virtual pion cloud of the nucleon. Our results provide...
[ { "created": "Sat, 19 May 2001 04:12:44 GMT", "version": "v1" }, { "created": "Fri, 6 Jul 2001 20:06:22 GMT", "version": "v2" } ]
2008-11-26
[ [ "Chen", "Jiunn-Wei", "" ], [ "Ji", "Xiangdong", "" ] ]
We calculate the leading non-analytic quark-mass dependence in the moments of isovector quark distributions using heavy-baryon chiral perturbation theory. The results differ from those obtained from the Sullivan process in which hard scattering occurs through the virtual pion cloud of the nucleon. Our results provide u...
1506.04413
Jacopo Ferretti
M. De Sanctis, J. Ferretti, E. Santopinto and A. Vassallo
Relativistic quark-diquark model of baryons. Non strange spectrum and nucleon electromagnetic form factors
Talks presented at the conference "Beauty in Physics: Theory and Experiment : Meeting in honor of Francesco Iachello on the occasion of his 70th birthday", 14-18 May 2012. Cocoyoc, Mexico
AIP Conf.Proc. 1488 (2012) 280-289
10.1063/1.4759409
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We briefly describe our relativistic quark-diquark model, developed within the framework of point form dynamics, which is the relativistic extension of the interacting quark-diquark model. In order to do that we have to show the main properties and quantum numbers of the effective degree of freedom of constituent diq...
[ { "created": "Sun, 14 Jun 2015 16:18:41 GMT", "version": "v1" } ]
2015-10-05
[ [ "De Sanctis", "M.", "" ], [ "Ferretti", "J.", "" ], [ "Santopinto", "E.", "" ], [ "Vassallo", "A.", "" ] ]
We briefly describe our relativistic quark-diquark model, developed within the framework of point form dynamics, which is the relativistic extension of the interacting quark-diquark model. In order to do that we have to show the main properties and quantum numbers of the effective degree of freedom of constituent diqua...
hep-ph/0702119
Fulvio Piccinini
Emidio Gabrielli, Fabio Maltoni, Barbara Mele, Mauro Moretti, Fulvio Piccinini, Roberto Pittau
Higgs Boson Production in Association with a Photon in Vector Boson Fusion at the LHC
30 pages, 8 figures, 8 tables; minor corrections to the text; version appeared in Nuclear Physics B
Nucl.Phys.B781:64-84,2007
10.1016/j.nuclphysb.2007.05.010
CP3-07-03, FNT/T-2007/01, HIP-2006-01/TH
hep-ph
null
Higgs boson production in association with two forward jets and a central photon at the CERN Large Hadron Collider is analyzed, for the Higgs boson decaying into a b bbar pair in the m_H <= 140 GeV mass region. We study both irreducible and main reducible backgrounds at parton level. Compared to the Higgs production ...
[ { "created": "Mon, 12 Feb 2007 16:32:41 GMT", "version": "v1" }, { "created": "Wed, 29 Aug 2007 09:51:22 GMT", "version": "v2" } ]
2008-11-26
[ [ "Gabrielli", "Emidio", "" ], [ "Maltoni", "Fabio", "" ], [ "Mele", "Barbara", "" ], [ "Moretti", "Mauro", "" ], [ "Piccinini", "Fulvio", "" ], [ "Pittau", "Roberto", "" ] ]
Higgs boson production in association with two forward jets and a central photon at the CERN Large Hadron Collider is analyzed, for the Higgs boson decaying into a b bbar pair in the m_H <= 140 GeV mass region. We study both irreducible and main reducible backgrounds at parton level. Compared to the Higgs production vi...
hep-ph/0505054
Mats Lindroos
J.Bernabeu, J.Burguet-Castell, C.Espinoza, M.Lindroos
Monochromatic neutrino beams
null
JHEP0512:014,2005
10.1088/1126-6708/2005/12/014
null
hep-ph
null
In the last few years spectacular results have been achieved with the demonstration of non vanishing neutrino masses and flavour mixing. The ultimate goal is the understanding of the origin of these properties from new physics. In this road, the last unknown mixing [Ue3] must be determined. If it is proved to be non-...
[ { "created": "Sat, 7 May 2005 17:13:16 GMT", "version": "v1" } ]
2009-11-11
[ [ "Bernabeu", "J.", "" ], [ "Burguet-Castell", "J.", "" ], [ "Espinoza", "C.", "" ], [ "Lindroos", "M.", "" ] ]
In the last few years spectacular results have been achieved with the demonstration of non vanishing neutrino masses and flavour mixing. The ultimate goal is the understanding of the origin of these properties from new physics. In this road, the last unknown mixing [Ue3] must be determined. If it is proved to be non-ze...
2312.05853
Saraswati Pandey
Saraswati Pandey, B. K. Singh
Predicting Quadrupole deformation via anisotropic flow and transverse momentum spectra in isotopic $\mathbf{\prescript{128-135}{54}{\mathrm{Xe}}}$ collisions at LHC
10 pages, 10 figures
null
null
null
hep-ph nucl-th
http://creativecommons.org/licenses/by/4.0/
In the hydrodynamical description of heavy-ion collisions, the elliptic flow $\mathrm{v_{2}}$ and triangular flow $\mathrm{v_{3}}$ are sensitive to the quadrupole deformation $\mathrm{\beta_{2}}$ of the colliding nuclei. We produce $\mathrm{v_{2}}$ and $\mathrm{v_{3}}$ ratios qualitatively and quantitatively in most-...
[ { "created": "Sun, 10 Dec 2023 11:11:22 GMT", "version": "v1" } ]
2023-12-12
[ [ "Pandey", "Saraswati", "" ], [ "Singh", "B. K.", "" ] ]
In the hydrodynamical description of heavy-ion collisions, the elliptic flow $\mathrm{v_{2}}$ and triangular flow $\mathrm{v_{3}}$ are sensitive to the quadrupole deformation $\mathrm{\beta_{2}}$ of the colliding nuclei. We produce $\mathrm{v_{2}}$ and $\mathrm{v_{3}}$ ratios qualitatively and quantitatively in most-ce...
1404.0996
Nilanjana Kumar
Nilanjana Kumar and Stephen P. Martin
LHC search for di-Higgs decays of stoponium and other scalars in events with two photons and two bottom jets
15 pages v3:Modified cuts on photon pT's and fake photon backgrounds added
Phys. Rev. D 90, 055007 (2014)
10.1103/PhysRevD.90.055007
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the prospects for LHC discovery of a narrow resonance that decays to two Higgs bosons, using the final state of two photons and two bottom jets. Our work is motivated in part by a scenario in which two-body flavor-preserving decays of the top squark are kinematically forbidden. Stoponium, a hadronic bound st...
[ { "created": "Thu, 3 Apr 2014 16:15:38 GMT", "version": "v1" }, { "created": "Mon, 14 Apr 2014 18:12:11 GMT", "version": "v2" }, { "created": "Mon, 18 Aug 2014 18:19:29 GMT", "version": "v3" } ]
2014-09-17
[ [ "Kumar", "Nilanjana", "" ], [ "Martin", "Stephen P.", "" ] ]
We study the prospects for LHC discovery of a narrow resonance that decays to two Higgs bosons, using the final state of two photons and two bottom jets. Our work is motivated in part by a scenario in which two-body flavor-preserving decays of the top squark are kinematically forbidden. Stoponium, a hadronic bound stat...
hep-ph/9907361
Bob Holdom
B. Holdom
Nonstandard order parameters and the origin of CP violation
12 pages, no figures
Phys.Rev.D61:011702,2000
10.1103/PhysRevD.61.011702
UTPT-99-12
hep-ph
null
The consideration of chirality-preserving 2-fermion order parameters may shed new light on the strong CP problem and the breakdown of flavor symmetries. We describe two situations, one having the standard KM picture for weak CP violation and another having new sources of weak CP violation.
[ { "created": "Wed, 14 Jul 1999 18:49:30 GMT", "version": "v1" } ]
2009-12-30
[ [ "Holdom", "B.", "" ] ]
The consideration of chirality-preserving 2-fermion order parameters may shed new light on the strong CP problem and the breakdown of flavor symmetries. We describe two situations, one having the standard KM picture for weak CP violation and another having new sources of weak CP violation.
0804.4401
Giuseppe Bozzi
Sara Bolognesi, Giuseppe Bozzi, Andrea Di Simone
Higgs at LHC
10 pages, 9 figures, talk given at: V Workshop Italiano sulla fisica p-p ad LHC, Perugia, Italy, 30 Jan. - 2 Feb. 2008
Nuovo Cim.B123:499-508,2008
10.1393/ncb/i2008-10537-3
KA-TP-11-2008
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
An overview of recent theoretical results on the Higgs boson and its discovery strategy at ATLAS and CMS will be presented, focusing on the main Higgs analysis effective with low integrated luminosity (less than 30 fb^-1).
[ { "created": "Mon, 28 Apr 2008 13:21:11 GMT", "version": "v1" } ]
2010-11-11
[ [ "Bolognesi", "Sara", "" ], [ "Bozzi", "Giuseppe", "" ], [ "Di Simone", "Andrea", "" ] ]
An overview of recent theoretical results on the Higgs boson and its discovery strategy at ATLAS and CMS will be presented, focusing on the main Higgs analysis effective with low integrated luminosity (less than 30 fb^-1).
1608.04911
Fredrik Bj\"orkeroth
Fredrik Bj\"orkeroth, Stephen F. King, Kai Schmitz, Tsutomu T. Yanagida
Leptogenesis after Chaotic Sneutrino Inflation and the Supersymmetry Breaking Scale
v2: 25 pages, 4 figures; version published in NPB, minor corrections. v1: 24 pages, 4 figures
null
10.1016/j.nuclphysb.2017.01.017
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss resonant leptogenesis arising from the decays of two nearly-degenerate right-handed neutrinos, identified as the inflaton and stabiliser superfields in a model of chaotic sneutrino inflation. We compare an analytical estimate of the baryon asymmetry $ \eta_B $ in the Boltzmann approximation to a numerical ...
[ { "created": "Wed, 17 Aug 2016 09:52:15 GMT", "version": "v1" }, { "created": "Mon, 27 Feb 2017 18:34:57 GMT", "version": "v2" } ]
2017-02-28
[ [ "Björkeroth", "Fredrik", "" ], [ "King", "Stephen F.", "" ], [ "Schmitz", "Kai", "" ], [ "Yanagida", "Tsutomu T.", "" ] ]
We discuss resonant leptogenesis arising from the decays of two nearly-degenerate right-handed neutrinos, identified as the inflaton and stabiliser superfields in a model of chaotic sneutrino inflation. We compare an analytical estimate of the baryon asymmetry $ \eta_B $ in the Boltzmann approximation to a numerical so...
hep-ph/9711507
Ingo Schienbein
I. Schienbein
Leading log radiative corrections to polarized heavy flavour leptoproduction
22 pages, 5 figures, 1 fig. removed, 1 formula added, several additions and changes in the text and the abstract
Phys.Rev. D59 (1999) 013001
10.1103/PhysRevD.59.013001
DOTH-97/26
hep-ph
null
O(\alpha) QED radiative corrections to polarized neutral current leptoproduction of heavy quark flavours are calculated in the leading log approximation for HERMES, COMPASS, and HERA kinematics. Besides the inclusive case, we derive general $z_h$-differential formulae for the polarized boson gluon fusion process and ...
[ { "created": "Fri, 28 Nov 1997 10:52:05 GMT", "version": "v1" }, { "created": "Wed, 22 Apr 1998 09:03:59 GMT", "version": "v2" } ]
2009-10-30
[ [ "Schienbein", "I.", "" ] ]
O(\alpha) QED radiative corrections to polarized neutral current leptoproduction of heavy quark flavours are calculated in the leading log approximation for HERMES, COMPASS, and HERA kinematics. Besides the inclusive case, we derive general $z_h$-differential formulae for the polarized boson gluon fusion process and us...
hep-ph/0702135
Adrian Melissinos
Adrian C. Melissinos
Comment on "Experimental Observation of Optical Rotation Generated in Vacuum by a Magnetic Field"
3 pages, 2 figures
null
null
null
hep-ph
null
We point out that recent claims of the detection of a light pseudoscalar/scalar (axion-like) particle [1,2] are excluded at the 95% level by an earlier experiment [3].
[ { "created": "Tue, 13 Feb 2007 15:46:17 GMT", "version": "v1" } ]
2007-05-23
[ [ "Melissinos", "Adrian C.", "" ] ]
We point out that recent claims of the detection of a light pseudoscalar/scalar (axion-like) particle [1,2] are excluded at the 95% level by an earlier experiment [3].
0812.2855
Bernd-Jochen Schaefer
Bernd-Jochen Schaefer and Mathias Wagner
On the QCD phase structure from effective models
7 pages, 4 figures, talk given by BJS at the 30th International School of Nuclear Physics, "Heavy Ion Collisions from the Coulomb Barrier to the Quark Gluon Plasma", Erice, Italy, 16-24 September 2008. To appear in the proceedings
Progress in Particle and Nuclear Physics 62, 381 (2009)
10.1016/j.ppnp.2008.12.009
null
hep-ph hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Some recent theoretical developments of the QCD phase diagram are summarized. Chiral symmetry restoration and the confinement/deconfinement transition at nonzero temperature and quark densities are analyzed in the framework of an effective linear sigma model with three light quark flavors. The sensitivity of the chir...
[ { "created": "Mon, 15 Dec 2008 16:30:34 GMT", "version": "v1" } ]
2012-11-08
[ [ "Schaefer", "Bernd-Jochen", "" ], [ "Wagner", "Mathias", "" ] ]
Some recent theoretical developments of the QCD phase diagram are summarized. Chiral symmetry restoration and the confinement/deconfinement transition at nonzero temperature and quark densities are analyzed in the framework of an effective linear sigma model with three light quark flavors. The sensitivity of the chiral...
hep-ph/9809452
Stephane Bronoff groupe
S. Bronoff, R. Buffa, C.P. Korthals Altes
Phase diagram of 3D SU(3) gauge-adjoint Higgs system
Contributing paper to the proceedings of the 5th International Workshop on Thermal Field Theories and their Applications, Regensburg, Germany, August 10-14, 1998. Corrected typos, changes in wording
null
null
null
hep-ph
null
Thermally reduced QCD leads to three dimensional SU(3) gaugefields coupled to an adjoint scalar field $A_0$. We compute the effective potential in the one-loop approximation and evaluate the VEV's of $TrA_0^2$ and $TrA_0^3$. In the Higgs phase not only the former, but also the latter has a VEV. This happens where the...
[ { "created": "Fri, 18 Sep 1998 16:28:58 GMT", "version": "v1" }, { "created": "Thu, 8 Oct 1998 11:51:15 GMT", "version": "v2" }, { "created": "Wed, 14 Oct 1998 09:07:47 GMT", "version": "v3" } ]
2007-05-23
[ [ "Bronoff", "S.", "" ], [ "Buffa", "R.", "" ], [ "Altes", "C. P. Korthals", "" ] ]
Thermally reduced QCD leads to three dimensional SU(3) gaugefields coupled to an adjoint scalar field $A_0$. We compute the effective potential in the one-loop approximation and evaluate the VEV's of $TrA_0^2$ and $TrA_0^3$. In the Higgs phase not only the former, but also the latter has a VEV. This happens where the S...
2110.09186
Marco Danilo Claudio Torri
Marco Danilo Claudio Torri
Neutrino Oscillations and Lorentz Invariance Violation
null
Universe 6 (2020) 3, 37
10.3390/universe6030037
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This work explores the possibility of resorting to neutrino phenomenology to detect evidence of new physics, caused by the residual signals of the supposed quantum structure of spacetime. In particular, this work investigates the effects on neutrino oscillations and mass hierarchy detection, predicted by models that ...
[ { "created": "Mon, 18 Oct 2021 11:03:35 GMT", "version": "v1" } ]
2021-10-19
[ [ "Torri", "Marco Danilo Claudio", "" ] ]
This work explores the possibility of resorting to neutrino phenomenology to detect evidence of new physics, caused by the residual signals of the supposed quantum structure of spacetime. In particular, this work investigates the effects on neutrino oscillations and mass hierarchy detection, predicted by models that vi...
1101.3623
Hideko Nagahiro
H. Nagahiro, K. Nawa, S. Ozaki, D. Jido and A. Hosaka
Composite and elementary natures of a1(1260) meson
13 pages, 4 figures
Phys.Rev.D83:111504,2011
10.1103/PhysRevD.83.111504
YITP-11-13
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We develop a practical method to analyze the mixing structure of hadrons consisting of two components of quark-composite and hadronic composite. As an example we investigate the properties of the axial vector meson a1(1260) and discuss its mixing properties quantitatively. We also make reference to the large Nc proce...
[ { "created": "Wed, 19 Jan 2011 06:41:54 GMT", "version": "v1" }, { "created": "Thu, 12 May 2011 08:38:47 GMT", "version": "v2" } ]
2015-03-17
[ [ "Nagahiro", "H.", "" ], [ "Nawa", "K.", "" ], [ "Ozaki", "S.", "" ], [ "Jido", "D.", "" ], [ "Hosaka", "A.", "" ] ]
We develop a practical method to analyze the mixing structure of hadrons consisting of two components of quark-composite and hadronic composite. As an example we investigate the properties of the axial vector meson a1(1260) and discuss its mixing properties quantitatively. We also make reference to the large Nc procedu...
hep-ph/9702284
Lubov Vassilevskaya
N.V. Mikheev and L.A. Vassilevskaya
Electromagnetic Catalysis of the Radiative Decay of the Axion
Minor revision, references added, to be published in Phys.Lett.B
Phys.Lett. B410 (1997) 207-210
10.1016/S0370-2693(97)00877-0
YARU-HE-97/01
hep-ph
null
The radiative decay of the axion $a \to \gamma \gamma$ is investigated in an external electromagnetic field in DFSZ model in which axion couples to both quarks and leptons at tree level. The decay probability is strongly catalyzed by the external field, namely, the field removes the main suppression caused by the sma...
[ { "created": "Fri, 7 Feb 1997 16:16:48 GMT", "version": "v1" }, { "created": "Fri, 1 Aug 1997 12:11:26 GMT", "version": "v2" } ]
2009-10-30
[ [ "Mikheev", "N. V.", "" ], [ "Vassilevskaya", "L. A.", "" ] ]
The radiative decay of the axion $a \to \gamma \gamma$ is investigated in an external electromagnetic field in DFSZ model in which axion couples to both quarks and leptons at tree level. The decay probability is strongly catalyzed by the external field, namely, the field removes the main suppression caused by the small...
0901.4749
Rong Li
Chao-Hsi Chang, Rong Li and Jian-Xiong Wang
J/\psi polarization in photo-production up-to the next-to-leading order of QCD
5 pages, 3 figures. Discussion on the theoretical uncertainties from the choice of renormalization scale was added
Phys.Rev.D80:034020,2009
10.1103/PhysRevD.80.034020
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the J/psi polarization in photoproduction at the Hadron Electron Ring Accelerator(HERA) up to the next-to-leading order of QCD. The results show that the transverse momentum p_t and energy fraction z distributions of J/psi production do not agree with the observed ones very well. The theoretical uncert...
[ { "created": "Thu, 29 Jan 2009 19:10:59 GMT", "version": "v1" }, { "created": "Mon, 2 Feb 2009 17:18:09 GMT", "version": "v2" }, { "created": "Fri, 2 Oct 2009 15:34:33 GMT", "version": "v3" } ]
2009-10-13
[ [ "Chang", "Chao-Hsi", "" ], [ "Li", "Rong", "" ], [ "Wang", "Jian-Xiong", "" ] ]
We investigate the J/psi polarization in photoproduction at the Hadron Electron Ring Accelerator(HERA) up to the next-to-leading order of QCD. The results show that the transverse momentum p_t and energy fraction z distributions of J/psi production do not agree with the observed ones very well. The theoretical uncertai...
2105.02143
Lei Wang
Lei Wang
Inflation, electroweak phase transition, and Higgs searches at the LHC in the two-Higgs-doublet model
Some discussions are added. Matches version published in JHEP
JHEP 07 (2022) 055
10.1007/JHEP07(2022)055
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Combining the electroweak phase transition and the Higgs searches at the LHC, we study the Higgs inflation in the type-I and type-II two-Higgs-doublet models with non-minimally couplings to gravity. Considering relevant theoretical and experimental constraints, we find that the Higgs inflation imposes stringent const...
[ { "created": "Wed, 5 May 2021 15:50:14 GMT", "version": "v1" }, { "created": "Mon, 10 Apr 2023 14:50:42 GMT", "version": "v2" } ]
2023-04-19
[ [ "Wang", "Lei", "" ] ]
Combining the electroweak phase transition and the Higgs searches at the LHC, we study the Higgs inflation in the type-I and type-II two-Higgs-doublet models with non-minimally couplings to gravity. Considering relevant theoretical and experimental constraints, we find that the Higgs inflation imposes stringent constra...
hep-ph/0106306
Alberto Accardi
A. Accardi, D. Treleani (Trieste U.)
Minijet transverse spectrum in high-energy hadron-nucleus collisions
30 pages, 4 figures
Phys.Rev. D64 (2001) 116004
10.1103/PhysRevD.64.116004
null
hep-ph
null
Hadron-nucleus collisions at LHC energies are studied by including explicitly semi-hard parton rescatterings in the collision dynamics. Under rather general conditions, we obtain explicit formulae for the semi-hard cross-section and the inclusive minijet transverse spectrum. As an effect of the rescatterings the spec...
[ { "created": "Wed, 27 Jun 2001 14:34:58 GMT", "version": "v1" } ]
2009-11-07
[ [ "Accardi", "A.", "", "Trieste U." ], [ "Treleani", "D.", "", "Trieste U." ] ]
Hadron-nucleus collisions at LHC energies are studied by including explicitly semi-hard parton rescatterings in the collision dynamics. Under rather general conditions, we obtain explicit formulae for the semi-hard cross-section and the inclusive minijet transverse spectrum. As an effect of the rescatterings the spectr...
hep-ph/9804416
Enrico Franco
U. Aglietti, M. Ciuchini, G. Corbo', E. Franco, G. Martinelli, L. Silvestrini
Model independent determination of the shape function for inclusive B decays and of the structure functions in DIS
16 pages, LaTeX file
Phys.Lett. B432 (1998) 411-420
10.1016/S0370-2693(98)00677-7
ROME1-1208/98, TUM-HEP-309/98
hep-ph
null
We present a method to compute, by numerical simulations of lattice QCD, the inclusive semileptonic differential decay rates of heavy hadrons and the structure functions which occur in deep inelastic scattering. The method is based on first principles and does not require any model assumption. It allows the predictio...
[ { "created": "Mon, 27 Apr 1998 13:50:51 GMT", "version": "v1" } ]
2009-10-31
[ [ "Aglietti", "U.", "" ], [ "Ciuchini", "M.", "" ], [ "Corbo'", "G.", "" ], [ "Franco", "E.", "" ], [ "Martinelli", "G.", "" ], [ "Silvestrini", "L.", "" ] ]
We present a method to compute, by numerical simulations of lattice QCD, the inclusive semileptonic differential decay rates of heavy hadrons and the structure functions which occur in deep inelastic scattering. The method is based on first principles and does not require any model assumption. It allows the prediction ...
2403.16061
Parada Hutauruk T. P.
Parada T. P. Hutauruk
Nonstandard interactions of neutrinos with dense matter
14 pages, 8 figures, 1 table
null
null
PKNU-NuHaTh-2024
hep-ph astro-ph.HE astro-ph.SR hep-ex nucl-th
http://creativecommons.org/licenses/by/4.0/
Nonstandard interaction is expected to be a crucial hint to explain the experimental data of neutrino scattering off electrons. In this context, the nonstandard interaction vector and axial-vector couplings are needed to be extracted from recent experiments and a few of them are now available in the literature. With ...
[ { "created": "Sun, 24 Mar 2024 08:12:32 GMT", "version": "v1" } ]
2024-03-26
[ [ "Hutauruk", "Parada T. P.", "" ] ]
Nonstandard interaction is expected to be a crucial hint to explain the experimental data of neutrino scattering off electrons. In this context, the nonstandard interaction vector and axial-vector couplings are needed to be extracted from recent experiments and a few of them are now available in the literature. With th...
hep-ph/9406325
null
Stefano Catani
Low-x Structure Functions
19 pages (+ 9 figs. available in hard copy upon request to catani@fi.infn.it), LaTeX, DFF 207/6/94
null
null
null
hep-ph
null
QCD predictions on the low-$x$ behaviour of the structure functions are reviewed and compared with the recent measurements of $F_2(x,Q^2)$ at HERA. The present theoretical accuracy of these predictions is discussed.
[ { "created": "Thu, 16 Jun 1994 10:10:20 GMT", "version": "v1" } ]
2009-09-25
[ [ "Catani", "Stefano", "" ] ]
QCD predictions on the low-$x$ behaviour of the structure functions are reviewed and compared with the recent measurements of $F_2(x,Q^2)$ at HERA. The present theoretical accuracy of these predictions is discussed.
2107.10866
Fulvia De Fazio
Andrzej J. Buras, Pietro Colangelo, Fulvia De Fazio, Francesco Loparco
The charm of 331
LaTeX, 31 pages, 13 figures
null
null
AJB-21-4; BARI-TH/21-729
hep-ph hep-ex hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We perform a detailed analysis of flavour changing neutral current processes in the charm sector in the context of 331 models. As pointed out recently, in the case of $Z^\prime$ contributions in these models there are no new free parameters beyond those already present in the $B_{d,s}$ and $K$ meson systems analyzed ...
[ { "created": "Thu, 22 Jul 2021 18:05:56 GMT", "version": "v1" } ]
2021-07-26
[ [ "Buras", "Andrzej J.", "" ], [ "Colangelo", "Pietro", "" ], [ "De Fazio", "Fulvia", "" ], [ "Loparco", "Francesco", "" ] ]
We perform a detailed analysis of flavour changing neutral current processes in the charm sector in the context of 331 models. As pointed out recently, in the case of $Z^\prime$ contributions in these models there are no new free parameters beyond those already present in the $B_{d,s}$ and $K$ meson systems analyzed in...
0907.2575
Bronislav Zakharov
B.G. Zakharov
Synchrotron-like gluon emission in the quark-gluon plasma
Contributed to 44th Rencontres de Moriond QCD and High Energy Interactions, La Thuile, Italy, 14-21 Mar 2009
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A quasiclassical theory of the synchrotron-like gluon emission is discussed. We show that the synchrotron emission may be important in the jet quenching if the plasma instabilities generate a chromomagnetic field about $m^{2}_{D}/g$. Our gluon spectrum disagrees with that obtained by Shuryak and Zahed within Schwinge...
[ { "created": "Wed, 15 Jul 2009 13:00:27 GMT", "version": "v1" } ]
2009-07-16
[ [ "Zakharov", "B. G.", "" ] ]
A quasiclassical theory of the synchrotron-like gluon emission is discussed. We show that the synchrotron emission may be important in the jet quenching if the plasma instabilities generate a chromomagnetic field about $m^{2}_{D}/g$. Our gluon spectrum disagrees with that obtained by Shuryak and Zahed within Schwinger'...
hep-ph/0401015
Alexander Pankov
A.A. Pankov (Tech. Univ. of Gomel)
Model-independent analysis of four-fermion contact interaction at e^+e^- collider
10 pages with 6 figures and 1 table Presented at the 12th International Seminar on High Energy physics "Quarks-2002", Novgorod, Russia, June 1 -- 7, 2002
null
null
null
hep-ph
null
We study electron-electron contact-interaction searches in the process e^+e^-\to e^+e^- at a future e^+e^- Linear Collider with both beams longitudinally polarized. We evaluate the model-independent constraints on the coupling constants, emphasizing the role of beam polarization, and make a comparison with the case o...
[ { "created": "Mon, 5 Jan 2004 12:48:32 GMT", "version": "v1" } ]
2007-05-23
[ [ "Pankov", "A. A.", "", "Tech. Univ. of Gomel" ] ]
We study electron-electron contact-interaction searches in the process e^+e^-\to e^+e^- at a future e^+e^- Linear Collider with both beams longitudinally polarized. We evaluate the model-independent constraints on the coupling constants, emphasizing the role of beam polarization, and make a comparison with the case of ...
1902.03071
Cristian Pisano
Cristian Pisano, Umberto D'Alesio, Carlo Flore, Francesco Murgia, Pieter Taels
Process dependence of the gluon Sivers function in inclusive $pp$ collisions: theory
7 pages, 2 figures; to appear in the Proceedings of the 23rd International SPIN Symposium (SPIN 2018), Ferrara (Italy), 10-14 September 2018
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Within the color gauge invariant generalized parton model (CGI-GPM), which includes initial and final state interactions in a transverse momentum dependent formalism, we present the complete results, at leading order in perturbative QCD, for transverse single-spin asymmetries in the inclusive hadroproduction of $J/\p...
[ { "created": "Fri, 8 Feb 2019 13:22:08 GMT", "version": "v1" } ]
2019-02-11
[ [ "Pisano", "Cristian", "" ], [ "D'Alesio", "Umberto", "" ], [ "Flore", "Carlo", "" ], [ "Murgia", "Francesco", "" ], [ "Taels", "Pieter", "" ] ]
Within the color gauge invariant generalized parton model (CGI-GPM), which includes initial and final state interactions in a transverse momentum dependent formalism, we present the complete results, at leading order in perturbative QCD, for transverse single-spin asymmetries in the inclusive hadroproduction of $J/\psi...
1209.1348
Michael Gronau
Michael Gronau and Jonathan L. Rosner
Revisiting D0-D0bar mixing using U-spin
corrected fonts for {\cal B}
null
10.1103/PhysRevD.86.114029
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We prove that $D^0$-$\bar D^0$ mixing in the standard model occurs only at second order in U-spin breaking. The U-spin subgroup of SU(3) is found to be a powerful tool for analyzing the cancellation of intermediate-state contributions to the $D^0$--$\od^0$ mixing parameter $y = \Delta \Gamma/(2 \Gamma)$. Cancellation...
[ { "created": "Thu, 6 Sep 2012 17:35:43 GMT", "version": "v1" }, { "created": "Thu, 20 Sep 2012 16:10:57 GMT", "version": "v2" }, { "created": "Mon, 24 Sep 2012 14:30:54 GMT", "version": "v3" } ]
2013-05-30
[ [ "Gronau", "Michael", "" ], [ "Rosner", "Jonathan L.", "" ] ]
We prove that $D^0$-$\bar D^0$ mixing in the standard model occurs only at second order in U-spin breaking. The U-spin subgroup of SU(3) is found to be a powerful tool for analyzing the cancellation of intermediate-state contributions to the $D^0$--$\od^0$ mixing parameter $y = \Delta \Gamma/(2 \Gamma)$. Cancellations ...
1507.06315
David Farhi
David Farhi, Ilya Feige, Marat Freytsis, Matthew D. Schwartz
Streamlining resummed QCD calculations using Monte Carlo integration
30 pages, 10 figures, code included with submission
null
10.1007/JHEP08(2016)112
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Some of the most arduous and error-prone aspects of precision resummed calculations are related to the partonic hard process, having nothing to do with the resummation. In particular, interfacing to parton-distribution functions, combining various channels, and performing the phase space integration can be limiting f...
[ { "created": "Wed, 22 Jul 2015 20:00:49 GMT", "version": "v1" } ]
2016-09-21
[ [ "Farhi", "David", "" ], [ "Feige", "Ilya", "" ], [ "Freytsis", "Marat", "" ], [ "Schwartz", "Matthew D.", "" ] ]
Some of the most arduous and error-prone aspects of precision resummed calculations are related to the partonic hard process, having nothing to do with the resummation. In particular, interfacing to parton-distribution functions, combining various channels, and performing the phase space integration can be limiting fac...
1101.5525
He Zhang
Werner Rodejohann, He Zhang
Extended Empirical Fermion Mass Relation
6 pages, 6 figures
Phys.Lett.B698:152-156,2011
10.1016/j.physletb.2011.03.007
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is known that the charged lepton masses obey to high precision an interesting empirical relation (Koide relation). In turn, the light neutrino masses cannot obey such a relation. We note that if neutrinos acquire their mass via the seesaw mechanism, the empirical mass relation could hold for the masses in the Dira...
[ { "created": "Fri, 28 Jan 2011 12:20:42 GMT", "version": "v1" } ]
2011-07-26
[ [ "Rodejohann", "Werner", "" ], [ "Zhang", "He", "" ] ]
It is known that the charged lepton masses obey to high precision an interesting empirical relation (Koide relation). In turn, the light neutrino masses cannot obey such a relation. We note that if neutrinos acquire their mass via the seesaw mechanism, the empirical mass relation could hold for the masses in the Dirac ...
0910.2071
Gagik Yeghiyan
Gagik K. Yeghiyan
Upsilon Decays into Scalar Dark Matter
6 pages, 4 figures, to be published in the proceedings of DPF-2009, Detroit, MI, July 2009, eConf C090726
null
null
WSU-HEP-0906
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We examine decays of a spin-1 bottomonium into a pair of light scalar Dark Matter (DM) particles, assuming that Dark Matter is produced due to exchange of heavy degrees of freedom. We perform a model-independent analysis and derive formulae for the branching ratios of these decays. We confront our calculation results...
[ { "created": "Mon, 12 Oct 2009 03:04:27 GMT", "version": "v1" } ]
2009-10-13
[ [ "Yeghiyan", "Gagik K.", "" ] ]
We examine decays of a spin-1 bottomonium into a pair of light scalar Dark Matter (DM) particles, assuming that Dark Matter is produced due to exchange of heavy degrees of freedom. We perform a model-independent analysis and derive formulae for the branching ratios of these decays. We confront our calculation results w...
2007.14939
Kirill Tuchin
Kirill Tuchin
Photon radiation from quark-gluon plasma by means of chiral anomalies without magnetic field
contribution to the "10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions"
null
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss a new channel of photon emission from the quark-gluon plasma, which opens up as photon acquires a tachyonic mass in the presence of the CP-odd topological domains generated by the chiral anomaly. It allows photon radiation through the decay $q\to q\gamma$ and annihilation $q\bar q\to \gamma$ processes clos...
[ { "created": "Wed, 29 Jul 2020 16:29:10 GMT", "version": "v1" } ]
2020-07-30
[ [ "Tuchin", "Kirill", "" ] ]
We discuss a new channel of photon emission from the quark-gluon plasma, which opens up as photon acquires a tachyonic mass in the presence of the CP-odd topological domains generated by the chiral anomaly. It allows photon radiation through the decay $q\to q\gamma$ and annihilation $q\bar q\to \gamma$ processes closel...
hep-ph/9501384
Ulf Meissner
V. Bernard, N. Kaiser and Ulf-G. Mei{\ss}ner
Chiral Dynamics in Nucleons and Nuclei
154 pp, plain TeX, uses epsf macros, figures appended in figrev.uu (as compressed uuencoded tar files), complete PS file available from meissner@pythia.itkp.uni-bonn.de
Int.J.Mod.Phys. E4 (1995) 193-346
10.1142/S0218301395000092
CRN 95-3 and TK 95 1
hep-ph nucl-th
null
We review the implications of the spontaneous chiral symmetry breaking in QCD for processes involving one, two or more nucleons.
[ { "created": "Thu, 26 Jan 1995 12:54:43 GMT", "version": "v1" } ]
2015-06-25
[ [ "Bernard", "V.", "" ], [ "Kaiser", "N.", "" ], [ "Meißner", "Ulf-G.", "" ] ]
We review the implications of the spontaneous chiral symmetry breaking in QCD for processes involving one, two or more nucleons.
1609.04917
T. Lappi
T. Lappi
Theory overview of Heavy Ion collisions
18 pages, 14 figures, presented at the Fourth Annual Large Hadron Collider Physics Conference (LHCP2016), 13--18 June 2016, Lund, Sweden
PoS(LHCP2016)016
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This presentation discusses some recently active topics in the theoretical interpretation of high energy heavy ion collisions at the LHC and at RHIC. We argue that the standard paradigm for understanding the spacetime evolution of the bulk of the matter produced in the collision is provided by viscous relativistic hy...
[ { "created": "Fri, 16 Sep 2016 06:44:13 GMT", "version": "v1" } ]
2016-09-20
[ [ "Lappi", "T.", "" ] ]
This presentation discusses some recently active topics in the theoretical interpretation of high energy heavy ion collisions at the LHC and at RHIC. We argue that the standard paradigm for understanding the spacetime evolution of the bulk of the matter produced in the collision is provided by viscous relativistic hydr...
0704.0031
Valery M. Biryukov
V. M. Biryukov (Serpukhov, IHEP)
Crystal channeling of LHC forward protons with preserved distribution in phase space
11 pages, 3 figures
Phys.Lett.B658:7-12,2007
10.1016/j.physletb.2007.10.051
null
hep-ph
null
We show that crystal can trap a broad (x, x', y, y', E) distribution of particles and channel it preserved with a high precision. This sampled-and-hold distribution can be steered by a bent crystal for analysis downstream. In simulations for the 7 TeV Large Hadron Collider, a crystal adapted to the accelerator lattic...
[ { "created": "Sat, 31 Mar 2007 14:14:46 GMT", "version": "v1" } ]
2008-11-26
[ [ "Biryukov", "V. M.", "", "Serpukhov, IHEP" ] ]
We show that crystal can trap a broad (x, x', y, y', E) distribution of particles and channel it preserved with a high precision. This sampled-and-hold distribution can be steered by a bent crystal for analysis downstream. In simulations for the 7 TeV Large Hadron Collider, a crystal adapted to the accelerator lattice ...
2206.04501
Zhou Rui
Zhou Rui, Chao-Qi Zhang, Jia-Ming Li, and Meng-Kun Jia
Investigating the color-suppressed decays $\Lambda_b\rightarrow \Lambda \psi$ in the perturbative QCD approach
22 pages, 1 figure, 9 tables, match published version
Phys. Rev. D 106 (2022) 053005
10.1103/PhysRevD.106.053005
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The nonleptonic two-body $\Lambda_b\rightarrow \Lambda\psi $ decays with $\psi=J/\psi$ or $\psi(2S)$ are investigated based on the perturbative QCD approach. These are color-suppressed processes in which the nonfactorizable contributions are confirmed to be dominant. Angular momentum conservation allows us to describ...
[ { "created": "Thu, 9 Jun 2022 13:37:44 GMT", "version": "v1" }, { "created": "Thu, 22 Sep 2022 15:01:13 GMT", "version": "v2" } ]
2022-09-23
[ [ "Rui", "Zhou", "" ], [ "Zhang", "Chao-Qi", "" ], [ "Li", "Jia-Ming", "" ], [ "Jia", "Meng-Kun", "" ] ]
The nonleptonic two-body $\Lambda_b\rightarrow \Lambda\psi $ decays with $\psi=J/\psi$ or $\psi(2S)$ are investigated based on the perturbative QCD approach. These are color-suppressed processes in which the nonfactorizable contributions are confirmed to be dominant. Angular momentum conservation allows us to describe ...
hep-ph/0606101
Alexander Friedland
Alexander Friedland, Cecilia Lunardini
Two modes of searching for new neutrino interactions at MINOS
10 pages, 3 figures; noticed typos corrected, results unchanged
Phys.Rev. D74 (2006) 033012
10.1103/PhysRevD.74.033012
LA-UR-06-3973
hep-ph hep-ex
null
The SuperKamiokande atmospheric neutrino measurements leave substantial room for nonstandard interactions (NSI) of neutrinos with matter in the nu_e- nu_tau sector. Large values of the NSI couplings are accommodated if the vacuum oscillation parameters are changed from their standard values. Short and medium baseline...
[ { "created": "Thu, 8 Jun 2006 19:58:29 GMT", "version": "v1" }, { "created": "Sat, 8 Jul 2006 00:46:00 GMT", "version": "v2" } ]
2009-11-11
[ [ "Friedland", "Alexander", "" ], [ "Lunardini", "Cecilia", "" ] ]
The SuperKamiokande atmospheric neutrino measurements leave substantial room for nonstandard interactions (NSI) of neutrinos with matter in the nu_e- nu_tau sector. Large values of the NSI couplings are accommodated if the vacuum oscillation parameters are changed from their standard values. Short and medium baseline n...
1908.10618
Guruprasad Kadam Dr.
Guruprasad Kadam, Somenath Pal and Abhijit Bhattacharyya
Interacting hadron resonance gas model in magnetic field and the fluctuations of conserved charges
Revised manuscript, 20 pages, 8 captioned figures, Accepted for publication in Journal of Physics G
J.Phys.G 47 (2020) 125106
10.1088/1361-6471/abba70
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we discuss the interacting hadron resonance gas model in presence of a constant external magnetic field. The short range repulsive interaction between hadrons are accounted through van der Waals excluded volume correction to the ideal gas pressure. Here we take the sizes of hadrons as $r_\pi$ (pion radi...
[ { "created": "Wed, 28 Aug 2019 09:57:27 GMT", "version": "v1" }, { "created": "Tue, 22 Sep 2020 16:47:37 GMT", "version": "v2" } ]
2021-01-01
[ [ "Kadam", "Guruprasad", "" ], [ "Pal", "Somenath", "" ], [ "Bhattacharyya", "Abhijit", "" ] ]
In this paper we discuss the interacting hadron resonance gas model in presence of a constant external magnetic field. The short range repulsive interaction between hadrons are accounted through van der Waals excluded volume correction to the ideal gas pressure. Here we take the sizes of hadrons as $r_\pi$ (pion radius...
0909.2836
Emiliano Molinaro
E. Molinaro, S.T. Petcov
On the Interplay Between the 'Low' and 'High' Energy CP-Violation in Leptogenesis
Submitted to the proceedings of "The 2009 Europhysics Conference on High Energy Physics", July 16 - 22, 2009, Krakow, Poland
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The CP-violation necessary for the generation of the baryon asymmetry of the Universe in the "flavoured" leptogenesis scenario can arise from the "low energy" PMNS neutrino mixing matrix and/or from the "high energy" part of neutrino Yukawa couplings, which can mediate CP-violating phenomena only at some high energy ...
[ { "created": "Tue, 15 Sep 2009 16:31:14 GMT", "version": "v1" } ]
2009-09-16
[ [ "Molinaro", "E.", "" ], [ "Petcov", "S. T.", "" ] ]
The CP-violation necessary for the generation of the baryon asymmetry of the Universe in the "flavoured" leptogenesis scenario can arise from the "low energy" PMNS neutrino mixing matrix and/or from the "high energy" part of neutrino Yukawa couplings, which can mediate CP-violating phenomena only at some high energy sc...
hep-ph/0412315
Junjie Cao
Junjie Cao, Jin Min Yang
Lightest Higgs Boson Mass in Split Supersymmetry with See-saw Mechanism
minor changes, version in PRD(Rapid Communication)
Phys.Rev.D71:111701,2005
10.1103/PhysRevD.71.111701
null
hep-ph hep-ex
null
In the minimal supersymmetric standard model extended by including right-handed neutrinos with see-saw mechanism, the neutrino Yukaka couplings can be as large as the top-quark Yukawa couplings and thus the neutrino/sneutrino may cause sizable effects in Higgs boson self-energy loops. Our explicit one-loop calculatio...
[ { "created": "Tue, 21 Dec 2004 15:57:24 GMT", "version": "v1" }, { "created": "Wed, 22 Jun 2005 07:45:49 GMT", "version": "v2" } ]
2011-07-19
[ [ "Cao", "Junjie", "" ], [ "Yang", "Jin Min", "" ] ]
In the minimal supersymmetric standard model extended by including right-handed neutrinos with see-saw mechanism, the neutrino Yukaka couplings can be as large as the top-quark Yukawa couplings and thus the neutrino/sneutrino may cause sizable effects in Higgs boson self-energy loops. Our explicit one-loop calculations...
hep-ph/0211307
Raymond R. Volkas
R. R. Volkas
Implications of the JHF-Kamioka neutrino oscillation experiment
10 pages, 3 figures, LaTeX, ws-procs9x6.cls. Invited talk at the Workshop on Physics at the Japan Hadron Facility (JHF), Adelaide, 14-21 March 2002
null
10.1142/9789812776662_0006
null
hep-ph hep-ex
null
After quickly reviewing the existing evidence for neutrino oscillations, I summarise the goals and capabilities of the JHF-Kamioka long baseline superbeam experiment. Theoretical implications of what this experiment could potentially discover are then discussed.
[ { "created": "Wed, 20 Nov 2002 05:18:40 GMT", "version": "v1" } ]
2017-08-23
[ [ "Volkas", "R. R.", "" ] ]
After quickly reviewing the existing evidence for neutrino oscillations, I summarise the goals and capabilities of the JHF-Kamioka long baseline superbeam experiment. Theoretical implications of what this experiment could potentially discover are then discussed.
hep-ph/9801432
Robert Harlander
K.G. Chetyrkin, R. Harlander and M. Steinhauser
Singlet Polarization Functions at O(\alpha_s^2)
LaTeX, 15 pages, 10 figures included as ps-files. The complete paper is also available via anonymous ftp at ftp://ttpux2.physik.uni-karlsruhe.de/ , or via www at http://www-ttp.physik.uni-karlsruhe.de/cgi-bin/preprints/
Phys. Rev. D 58, 014012 (1998)
10.1103/PhysRevD.58.014012
MPI/PhT/98-06, TTP98-04
hep-ph
null
We consider the three-loop singlet diagrams induced by axial-vector, scalar and pseudo-scalar currents. Expansions for small and large external momentum $q$ are presented. They are used in combination with conformal mapping and Pad\'e approximations in order to arrive at results for the polarization functions valid f...
[ { "created": "Thu, 29 Jan 1998 07:48:41 GMT", "version": "v1" } ]
2016-08-25
[ [ "Chetyrkin", "K. G.", "" ], [ "Harlander", "R.", "" ], [ "Steinhauser", "M.", "" ] ]
We consider the three-loop singlet diagrams induced by axial-vector, scalar and pseudo-scalar currents. Expansions for small and large external momentum $q$ are presented. They are used in combination with conformal mapping and Pad\'e approximations in order to arrive at results for the polarization functions valid for...
hep-ph/0110148
Namit Mahajan
Namit Mahajan (Univ. of Delhi)
Noncommutative QED and $\gamma\gamma$ scattering
Minor corrections made and references added
null
null
null
hep-ph
null
We study $\gamma\gamma$ scattering in noncommutative QED (NCQED) where the gauge field has Yang-Mills type coupling, giving new contributions to the scattering process and making it possible for it to occur at tree level. The process takes place at one loop level in the Standard Model (SM) and could be an important s...
[ { "created": "Thu, 11 Oct 2001 09:49:54 GMT", "version": "v1" }, { "created": "Wed, 7 Nov 2001 06:00:32 GMT", "version": "v2" } ]
2007-05-23
[ [ "Mahajan", "Namit", "", "Univ. of Delhi" ] ]
We study $\gamma\gamma$ scattering in noncommutative QED (NCQED) where the gauge field has Yang-Mills type coupling, giving new contributions to the scattering process and making it possible for it to occur at tree level. The process takes place at one loop level in the Standard Model (SM) and could be an important sig...
1103.4131
Sandro Casagrande
Sandro Casagrande
Indirect tests of the Randall-Sundrum model
8 pages, 6 figures; Talk given at Discrete '10: Symposium on Prospects in the Physics of Discrete Symmetries, Rome, Italy, 6-11 Dec 2010
null
10.1088/1742-6596/335/1/012018
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
I present phenomenological implications of the Randall-Sundrum model for indirect searches, specifically a selection of flavor observables and Higgs-related collider searches. I review the interplay of constraints from CP violation in flavor physics, possible effects in rare decays, and model-specific protection mech...
[ { "created": "Mon, 21 Mar 2011 20:00:43 GMT", "version": "v1" } ]
2015-05-27
[ [ "Casagrande", "Sandro", "" ] ]
I present phenomenological implications of the Randall-Sundrum model for indirect searches, specifically a selection of flavor observables and Higgs-related collider searches. I review the interplay of constraints from CP violation in flavor physics, possible effects in rare decays, and model-specific protection mechan...
hep-ph/9709279
Gi-Chol Cho
Gi-Chol Cho and Kaoru Hagiwara (Theory group, KEK)
String unification scale and the hyper-charge Kac-Moody level in the non-supersymmetric standard model
LaTeX, 13pages, 3 figures. Some comments are added. Final version to appear in Phys. Lett. B
Phys.Lett. B419 (1998) 199-205
10.1016/S0370-2693(97)01488-3
KEK-TH-537
hep-ph
null
The string theory predicts the unification of the gauge couplings and gravity. The minimal supersymmetric Standard Model, however, gives the unification scale $\sim 2\times 10^{16}$ GeV which is significantly smaller than the string scale $\sim 5\times 10^{17}$ GeV of the weak coupling heterotic string theory. We stu...
[ { "created": "Mon, 8 Sep 1997 09:42:10 GMT", "version": "v1" }, { "created": "Tue, 9 Sep 1997 03:19:19 GMT", "version": "v2" }, { "created": "Wed, 26 Nov 1997 08:48:10 GMT", "version": "v3" } ]
2009-10-30
[ [ "Cho", "Gi-Chol", "", "Theory group, KEK" ], [ "Hagiwara", "Kaoru", "", "Theory group, KEK" ] ]
The string theory predicts the unification of the gauge couplings and gravity. The minimal supersymmetric Standard Model, however, gives the unification scale $\sim 2\times 10^{16}$ GeV which is significantly smaller than the string scale $\sim 5\times 10^{17}$ GeV of the weak coupling heterotic string theory. We study...
1707.05195
Antonio Enrique C\'arcamo Hern\'andez acarcamo
A. E. C\'arcamo Hern\'andez, Basti\'an D\'iaz S\'aez, Claudio O. Dib, Alfonso Zerwekh
Constraints on vector resonances from a strong Higgs sector
14 pages, 18 figures. arXiv admin note: text overlap with arXiv:1506.03631
Phys. Rev. D 96, 115027 (2017)
10.1103/PhysRevD.96.115027
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider a scenario of a composite Higgs arising from a strong sector. We assume that the lowest lying composite states are the Higgs scalar doublet and a massive vector triplet, whose dynamics below the compositeness scale are described in terms of an effective Lagrangian. Electroweak symmetry breaking takes plac...
[ { "created": "Thu, 13 Jul 2017 21:13:21 GMT", "version": "v1" } ]
2018-01-03
[ [ "Hernández", "A. E. Cárcamo", "" ], [ "Sáez", "Bastián Díaz", "" ], [ "Dib", "Claudio O.", "" ], [ "Zerwekh", "Alfonso", "" ] ]
We consider a scenario of a composite Higgs arising from a strong sector. We assume that the lowest lying composite states are the Higgs scalar doublet and a massive vector triplet, whose dynamics below the compositeness scale are described in terms of an effective Lagrangian. Electroweak symmetry breaking takes place ...
1405.3957
Tanumoy Mandal
Gilad Amar, Shankha Banerjee, Stefan von Buddenbrock, Alan S. Cornell, Tanumoy Mandal, Bruce Mellado, Biswarup Mukhopadhyaya
Exploration of the Tensor Structure of the Higgs Boson Coupling to Weak Bosons in $e^+e^-$ Collisions
38 pages, 15 figures, 2 tables, matches with published version
JHEP 1502 (2015) 128
10.1007/JHEP02(2015)128
HRI-RECAPP-2014-011,WITS-CTP-135
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Probing signatures of anomalous interactions of the Higgs boson with pairs of weak vector bosons is an important goal of an $e^+e^-$ collider commissioned as a Higgs factory. We perform a detailed analysis of such potential of a collider operating at $250 - 300$ GeV. Mostly using higher dimensional operators in a gau...
[ { "created": "Thu, 15 May 2014 19:26:33 GMT", "version": "v1" }, { "created": "Sat, 20 Sep 2014 14:52:32 GMT", "version": "v2" }, { "created": "Mon, 16 Mar 2015 12:30:39 GMT", "version": "v3" } ]
2015-03-17
[ [ "Amar", "Gilad", "" ], [ "Banerjee", "Shankha", "" ], [ "von Buddenbrock", "Stefan", "" ], [ "Cornell", "Alan S.", "" ], [ "Mandal", "Tanumoy", "" ], [ "Mellado", "Bruce", "" ], [ "Mukhopadhyaya", "Biswarup", ...
Probing signatures of anomalous interactions of the Higgs boson with pairs of weak vector bosons is an important goal of an $e^+e^-$ collider commissioned as a Higgs factory. We perform a detailed analysis of such potential of a collider operating at $250 - 300$ GeV. Mostly using higher dimensional operators in a gauge...
0710.4055
Marek Karliner
Marek Karliner and Harry J. Lipkin
Possibility of Narrow High-Mass Exotic States
LaTeX, 7 pages, 2 figures
null
null
TAUP 2865/07, WIS/17/07-OCT-DPP, ANL-HEP-PR-707-88
hep-ph
null
Narrow high-mass states can arise despite large phase space when two nearly degenerate states are coupled to the same dominant decay mode. Mixing via a final-state interaction loop diagram can produce one very broad state and one narrow state. Such a situation is generic in exotic hadrons where a color singlet with g...
[ { "created": "Mon, 22 Oct 2007 13:36:48 GMT", "version": "v1" } ]
2007-10-23
[ [ "Karliner", "Marek", "" ], [ "Lipkin", "Harry J.", "" ] ]
Narrow high-mass states can arise despite large phase space when two nearly degenerate states are coupled to the same dominant decay mode. Mixing via a final-state interaction loop diagram can produce one very broad state and one narrow state. Such a situation is generic in exotic hadrons where a color singlet with giv...
2009.05616
Peter Lichard
Peter Lichard
Possible manifestation of the 2p pionium in particle physics processes
11 pages, 11 figures, 5 tables
Phys. Rev. D 102, 073004 (2020)
10.1103/PhysRevD.102.073004
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We suggest a few particle physics processes in which excited 2p pionium $\mathrm{A}^\prime_{2\pi}$ may be observed. They include the $e^+e^-\to\pi^+\pi^-$ annihilation, the $V^0\to\pi^0\ell^+\ell^-$ and $K^\pm\to\pi^\pm\ell^+\ell^-$ ($\ell=e,\mu$) decays, and the photoproduction of two neutral pions from nucleons. We...
[ { "created": "Fri, 11 Sep 2020 18:57:34 GMT", "version": "v1" }, { "created": "Sun, 18 Oct 2020 17:27:07 GMT", "version": "v2" } ]
2020-10-20
[ [ "Lichard", "Peter", "" ] ]
We suggest a few particle physics processes in which excited 2p pionium $\mathrm{A}^\prime_{2\pi}$ may be observed. They include the $e^+e^-\to\pi^+\pi^-$ annihilation, the $V^0\to\pi^0\ell^+\ell^-$ and $K^\pm\to\pi^\pm\ell^+\ell^-$ ($\ell=e,\mu$) decays, and the photoproduction of two neutral pions from nucleons. We a...
hep-ph/0004081
Kazunori Itakura
K. Itakura and S. Maedan
Dynamical Chiral Symmetry Breaking on the Light Front.II. The Nambu--Jona-Lasinio Model
23 pages, REVTEX, the version to be published in Phys.Rev.D; Some clarifications in discussion of the LC wavefunctions added
Phys.Rev. D62 (2000) 105016
10.1103/PhysRevD.62.105016
RCNP-Th-00010
hep-ph hep-th nucl-th
null
An investigation of dynamical chiral symmetry breaking on the light front is made in the Nambu--Jona-Lasinio model with one flavor and N colors. Analysis of the model suffers from extraordinary complexity due to the existence of a "fermionic constraint," i.e., a constraint equation for the bad spinor component. Howev...
[ { "created": "Sat, 8 Apr 2000 13:39:18 GMT", "version": "v1" }, { "created": "Mon, 3 Jul 2000 02:00:23 GMT", "version": "v2" } ]
2009-10-31
[ [ "Itakura", "K.", "" ], [ "Maedan", "S.", "" ] ]
An investigation of dynamical chiral symmetry breaking on the light front is made in the Nambu--Jona-Lasinio model with one flavor and N colors. Analysis of the model suffers from extraordinary complexity due to the existence of a "fermionic constraint," i.e., a constraint equation for the bad spinor component. However...
hep-ph/0001198
Giorgio Calucci
Giorgio Calucci and Daniele Treleani
A Hamiltonian model for multiple production in hadron-hadron collisions
LateX No figures 9pages Proc. Conference ISMD1998 Delphi (GR)
Proc. Conference ISMD1998 Delphi (GR)
null
null
hep-ph
null
A Hamiltonian eikonal model for the multiple production in high energy hadron hadron collisions is presented and worked out in the aim of providing a simple frame for many different observables of these processes. The Hamiltonian formulation ensures that it has the unitarity built in by construction and the eikonal a...
[ { "created": "Wed, 19 Jan 2000 16:28:17 GMT", "version": "v1" } ]
2007-05-23
[ [ "Calucci", "Giorgio", "" ], [ "Treleani", "Daniele", "" ] ]
A Hamiltonian eikonal model for the multiple production in high energy hadron hadron collisions is presented and worked out in the aim of providing a simple frame for many different observables of these processes. The Hamiltonian formulation ensures that it has the unitarity built in by construction and the eikonal app...
hep-ph/9602408
Sergio A. Pernice
S. A. Pernice
Fully Relativistic Quark Models for Heavy-Light Systems
38 pages, Latex, 8 figures. This version includes figures
Phys.Rev. D53 (1996) 1439-1451
10.1103/PhysRevD.53.1439
null
hep-ph hep-lat
null
A fully relativistic quark model is constructed and applied to the study of wave-functions as well as the spectrum of heavy-light mesons. The free parameters of the model are a constituent quark mass and (on the lattice) an adjustable r-parameter in the fermionic kinetic energy, while the confinement is introduced vi...
[ { "created": "Tue, 27 Feb 1996 14:17:06 GMT", "version": "v1" }, { "created": "Sun, 3 Mar 1996 21:39:37 GMT", "version": "v2" } ]
2009-10-28
[ [ "Pernice", "S. A.", "" ] ]
A fully relativistic quark model is constructed and applied to the study of wave-functions as well as the spectrum of heavy-light mesons. The free parameters of the model are a constituent quark mass and (on the lattice) an adjustable r-parameter in the fermionic kinetic energy, while the confinement is introduced via ...
hep-ph/0109245
Janusz Gluza
M. Czakon, (Univ. Karlsruhe), J. Gluza and M. Zralek (Univ. Silesia, Katowice)
Nonunitary neutrino mixing matrix and CP violating neutrino oscillations
10 pages, 4 figs, presented at the XXV International Conference on Theoretical Physics ``Particle Physics and Astrophysics in the Standard Model and Beyond, Ustron, Poland, September 2001
Acta Phys.Polon.B32:3735-3744,2001
null
null
hep-ph
null
In the standard approach to the neutrino oscillations a unitary relation among weak and mass eigenstates of light neutrinos is imposed. However, in many extensions of the SM left-handed, active neutrinos mix with additional heavy neutrino states. Consequences of this additional mixing, driven by experimental constrai...
[ { "created": "Wed, 26 Sep 2001 08:34:42 GMT", "version": "v1" } ]
2014-11-17
[ [ "Czakon", "M.", "", "Univ. Silesia,\n Katowice" ], [ "Gluza", "J.", "", "Univ. Silesia,\n Katowice" ], [ "Zralek", "M.", "", "Univ. Silesia,\n Katowice" ] ]
In the standard approach to the neutrino oscillations a unitary relation among weak and mass eigenstates of light neutrinos is imposed. However, in many extensions of the SM left-handed, active neutrinos mix with additional heavy neutrino states. Consequences of this additional mixing, driven by experimental constraint...
1912.07755
Luca Buonocore
Luca Buonocore
Recent developments in $q_T$ subtraction: EW corrections and power suppressed contributions
11 pages, 3 figures, to appear in the proceedings of the 14th International Symposium on Radiative Corrections (RADCOR2019)
null
null
C19-09-08
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The $q_T$ subtraction formalism represents a well established and successful technique to deal with the computation of QCD radiative corrections up to NNLO (and beyond) for a large class of processes relevant at the LHC. We have explored the possibility to apply $q_T$ subtraction to the computation of EW corrections ...
[ { "created": "Mon, 16 Dec 2019 23:26:41 GMT", "version": "v1" } ]
2019-12-18
[ [ "Buonocore", "Luca", "" ] ]
The $q_T$ subtraction formalism represents a well established and successful technique to deal with the computation of QCD radiative corrections up to NNLO (and beyond) for a large class of processes relevant at the LHC. We have explored the possibility to apply $q_T$ subtraction to the computation of EW corrections wi...
1103.1481
Matthias Steinhauser
Jens Hoff and Matthias Steinhauser
Moments of heavy-light current correlators up to three loops
21 pages
null
10.1016/j.nuclphysb.2011.04.007
SFB/CPP-11-05, TTP11-02
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider moments of the non-diagonal vector, axial-vector, scalar and pseudo-scalar current correlators involving two different massive quark flavours up to three-loop accuracy. Expansions around the limits where one mass is zero and the equal-mass case are computed. These results are used to construct approximati...
[ { "created": "Tue, 8 Mar 2011 10:11:02 GMT", "version": "v1" } ]
2015-05-27
[ [ "Hoff", "Jens", "" ], [ "Steinhauser", "Matthias", "" ] ]
We consider moments of the non-diagonal vector, axial-vector, scalar and pseudo-scalar current correlators involving two different massive quark flavours up to three-loop accuracy. Expansions around the limits where one mass is zero and the equal-mass case are computed. These results are used to construct approximation...
2105.01666
Martin Hoferichter
Igor Danilkin, Martin Hoferichter, Peter Stoffer
A dispersive estimate of scalar contributions to hadronic light-by-light scattering
9 pages, 2 figures; journal version
Phys. Lett. B 820 (2021) 136502
10.1016/j.physletb.2021.136502
INT-PUB-21-11, UWThPh 2021-3
hep-ph hep-ex hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the contribution of scalar resonances to hadronic light-by-light scattering in the anomalous magnetic moment of the muon. While the $f_0(500)$ has already been addressed in previous work using dispersion relations, heavier scalar resonances have only been estimated in hadronic models so far. Here, we comp...
[ { "created": "Tue, 4 May 2021 18:00:01 GMT", "version": "v1" }, { "created": "Fri, 16 Jul 2021 07:17:12 GMT", "version": "v2" } ]
2021-07-19
[ [ "Danilkin", "Igor", "" ], [ "Hoferichter", "Martin", "" ], [ "Stoffer", "Peter", "" ] ]
We consider the contribution of scalar resonances to hadronic light-by-light scattering in the anomalous magnetic moment of the muon. While the $f_0(500)$ has already been addressed in previous work using dispersion relations, heavier scalar resonances have only been estimated in hadronic models so far. Here, we compar...
2006.12019
Desh Raj
S. Dev and Desh Raj
New Hybrid Textures for Neutrino Mass Matrices
null
Nuclear Physics B 957 (2020) 115081
10.1016/j.nuclphysb.2020.115081
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We perform a systematic investigation of the texture structures of Majorana neutrino mass matrix $M_{\nu}$ having two texture zeros and an equality between two nonzero matrix elements, in the light of recent neutrino oscillation data. Among forty-two possible textures, it is found that only eight textures are compati...
[ { "created": "Mon, 22 Jun 2020 05:58:59 GMT", "version": "v1" } ]
2020-06-23
[ [ "Dev", "S.", "" ], [ "Raj", "Desh", "" ] ]
We perform a systematic investigation of the texture structures of Majorana neutrino mass matrix $M_{\nu}$ having two texture zeros and an equality between two nonzero matrix elements, in the light of recent neutrino oscillation data. Among forty-two possible textures, it is found that only eight textures are compatibl...
hep-ph/9808226
Arkady Vainshtein
Arkady Vainshtein
Heavy flavor decays and OPE in two-dimensional 't Hooft model
LaTex, 11 pages, 2 figures. Talk presented at the 3rd workshop on Continious Advances in QCD, University of Minnesota, Minneapolis, April 16-19, 1998
null
null
TPI-MINN-98/13-T, UMN-TH-1713-98
hep-ph
null
The 't Hooft model (two-dimensional QCD in the limit of large number of colors) is used as a testground for calculations of nonleptonic and semileptonic inclusive widths of heavy flavors based on the operator product expansion (OPE). The OPE-based predictions up to terms ${\cal O}(1/m_Q^4)$, inclusively, are confront...
[ { "created": "Wed, 5 Aug 1998 00:59:27 GMT", "version": "v1" } ]
2007-05-23
[ [ "Vainshtein", "Arkady", "" ] ]
The 't Hooft model (two-dimensional QCD in the limit of large number of colors) is used as a testground for calculations of nonleptonic and semileptonic inclusive widths of heavy flavors based on the operator product expansion (OPE). The OPE-based predictions up to terms ${\cal O}(1/m_Q^4)$, inclusively, are confronted...
hep-ph/9703250
Takeo Matsuoka
N. Haba, N. Maru and T. Matsuoka
Supersymmetry Breaking Without A Messenger Sector
Revised version includes some corrections of the superpotential
Phys.Rev. D56 (1997) 4207-4212
10.1103/PhysRevD.56.4207
DPNU-97-14
hep-ph
null
We propose a simple gauge-mediated supersymmetry breaking model in which suitable soft breaking masses are dynamically generated without relying on a messenger sector. This model is constructed as an extention of the 3-2 model and needs no fine-tuning of parameters. The dynamical supersymmetry breaking sector contain...
[ { "created": "Thu, 6 Mar 1997 06:01:12 GMT", "version": "v1" }, { "created": "Wed, 12 Mar 1997 07:34:07 GMT", "version": "v2" } ]
2009-10-30
[ [ "Haba", "N.", "" ], [ "Maru", "N.", "" ], [ "Matsuoka", "T.", "" ] ]
We propose a simple gauge-mediated supersymmetry breaking model in which suitable soft breaking masses are dynamically generated without relying on a messenger sector. This model is constructed as an extention of the 3-2 model and needs no fine-tuning of parameters. The dynamical supersymmetry breaking sector contains ...
1503.06519
Hoernisa Iminniyaz
Shun-zhi Wang, Hoernisa Iminniyaz, Mamatrishat Mamat
Relic Abundance of Asymmetric Dark Matter and the Scalar--Tensor Model
The whole structure of the paper is changed. The new figure is added and typos are corrected
null
10.1142/S0217751X16500214
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The relic abundance of asymmetric Dark Matter particles in the scalar--tensor model is analysized in this article. We extend the numeric and analytic calculation of the relic density of the asymmetric Dark Matter in the standard cosmological scenario to the nonstandard cosmological scenario. We focus on the scalar--t...
[ { "created": "Mon, 23 Mar 2015 03:54:44 GMT", "version": "v1" }, { "created": "Wed, 19 Aug 2015 05:47:41 GMT", "version": "v2" } ]
2016-03-16
[ [ "Wang", "Shun-zhi", "" ], [ "Iminniyaz", "Hoernisa", "" ], [ "Mamat", "Mamatrishat", "" ] ]
The relic abundance of asymmetric Dark Matter particles in the scalar--tensor model is analysized in this article. We extend the numeric and analytic calculation of the relic density of the asymmetric Dark Matter in the standard cosmological scenario to the nonstandard cosmological scenario. We focus on the scalar--ten...
hep-ph/9806201
Arnulfo Zepeda
U. Cotti, R. Gaitan, A. Hernandez, W. Ponce, and A. Zepeda
Lepton mass generation and family number violation mechanism in the $SU(6)\otimes U(1)$ model
12 pages, Latex, 7 figures. Accepted for publication in Int. Journ. of Mod. Phys. A
Int.J.Mod.Phys. A13 (1998) 5557-5572
10.1142/S0217751X98002535
null
hep-ph
null
Lepton family number violation processes arise in the $SU(6)_L \otimes U(1)_Y$ model due to the presence of an extra neutral gauge boson, Z$'$, with family changing couplings, and due to the fact that this model demands the existence of heavy exotic leptons. The mixing of the standard Z with Z$'$ and the mixing of or...
[ { "created": "Sat, 30 May 1998 00:09:53 GMT", "version": "v1" } ]
2009-10-31
[ [ "Cotti", "U.", "" ], [ "Gaitan", "R.", "" ], [ "Hernandez", "A.", "" ], [ "Ponce", "W.", "" ], [ "Zepeda", "A.", "" ] ]
Lepton family number violation processes arise in the $SU(6)_L \otimes U(1)_Y$ model due to the presence of an extra neutral gauge boson, Z$'$, with family changing couplings, and due to the fact that this model demands the existence of heavy exotic leptons. The mixing of the standard Z with Z$'$ and the mixing of ordi...
1512.02201
Norimi Yokozaki
Masaki Asano, Yuichiro Nakai and Norimi Yokozaki
Low-Scale Gauge Mediation with a 100 TeV Gravitino
17 pages, 2 figures; typos corrected
Phys. Rev. D 93, 055023 (2016)
10.1103/PhysRevD.93.055023
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a new framework of low-scale gauge-mediated supersymmetry (SUSY) breaking with a gravitino mass of O(100) TeV. The usual 4D gauge mediation models predict a light gravitino and suffer from cosmological problems. In our framework, a heavy gravitino in gauge mediation is realized with a flat extra-dimension,...
[ { "created": "Mon, 7 Dec 2015 20:37:58 GMT", "version": "v1" }, { "created": "Wed, 9 Mar 2016 09:52:16 GMT", "version": "v2" } ]
2016-03-23
[ [ "Asano", "Masaki", "" ], [ "Nakai", "Yuichiro", "" ], [ "Yokozaki", "Norimi", "" ] ]
We propose a new framework of low-scale gauge-mediated supersymmetry (SUSY) breaking with a gravitino mass of O(100) TeV. The usual 4D gauge mediation models predict a light gravitino and suffer from cosmological problems. In our framework, a heavy gravitino in gauge mediation is realized with a flat extra-dimension, w...
hep-ph/0202169
Alan R. White
Alan R. White
The Chiral Anomaly and High-Energy Scattering in QCD
64 pages, 33 ps figures in the text. Version to be published
Phys.Rev. D66 (2002) 056007
10.1103/PhysRevD.66.056007
ANL-HEP-PR-02-19
hep-ph
null
Infra-red properties of the triangle anomaly and the ``anomaly pole'' are elaborated and applied to the study of high-energy scattering in QCD, when the gauge symmetry is partially broken to SU(2). It is shown that the chiral flavor anomaly provides a wee-gluon component for Goldstone bosons that combines with intera...
[ { "created": "Sun, 17 Feb 2002 21:49:54 GMT", "version": "v1" }, { "created": "Mon, 1 Apr 2002 23:40:08 GMT", "version": "v2" }, { "created": "Fri, 2 Aug 2002 16:08:01 GMT", "version": "v3" } ]
2009-11-07
[ [ "White", "Alan R.", "" ] ]
Infra-red properties of the triangle anomaly and the ``anomaly pole'' are elaborated and applied to the study of high-energy scattering in QCD, when the gauge symmetry is partially broken to SU(2). It is shown that the chiral flavor anomaly provides a wee-gluon component for Goldstone bosons that combines with interact...
hep-ph/0611286
Brian Feldstein
Brian Feldstein, Brock Tweedie
Density Perturbations in Chain Inflation
28 pages, 16 figures; v2: corrected typos, increased resolution on D=2+1 data points
JCAP 0704:020,2007
10.1088/1475-7516/2007/04/020
UCB-PTH-06/21, LBNL-62015
hep-ph
null
We consider the model of ``Chain Inflation,'' in which the period of inflation in our universe took the form of a long sequence of quantum tunneling events. We find that in the simplest such scenario, in which the tunneling processes are uniform, approximately 10^4 vacua per e-folding of inflation are required in ord...
[ { "created": "Wed, 22 Nov 2006 08:44:08 GMT", "version": "v1" }, { "created": "Wed, 6 Dec 2006 21:05:03 GMT", "version": "v2" } ]
2014-11-18
[ [ "Feldstein", "Brian", "" ], [ "Tweedie", "Brock", "" ] ]
We consider the model of ``Chain Inflation,'' in which the period of inflation in our universe took the form of a long sequence of quantum tunneling events. We find that in the simplest such scenario, in which the tunneling processes are uniform, approximately 10^4 vacua per e-folding of inflation are required in order...
2401.05009
Preeti Bhall
Preeti Bhall and A. Upadhyay
Importance of strange sea to the charge radii and quadrupole moment of $ J^P=\frac{1}{2}^+,\frac{3}{2}^+$ baryons
null
null
null
null
hep-ph nucl-th
http://creativecommons.org/licenses/by/4.0/
A statistical framework in conjugation with the principle of detailed balance is employed to examine the low-energy properties i.e. charge radii and quadrupole moment of J$^P$=$\frac{1}{2}^+$ octet and J$^P$=$\frac{3}{2}^+$ decuplet baryon. The statistical approach assumes the expansion of baryonic system in terms of...
[ { "created": "Wed, 10 Jan 2024 08:54:07 GMT", "version": "v1" } ]
2024-01-11
[ [ "Bhall", "Preeti", "" ], [ "Upadhyay", "A.", "" ] ]
A statistical framework in conjugation with the principle of detailed balance is employed to examine the low-energy properties i.e. charge radii and quadrupole moment of J$^P$=$\frac{1}{2}^+$ octet and J$^P$=$\frac{3}{2}^+$ decuplet baryon. The statistical approach assumes the expansion of baryonic system in terms of q...
1110.4817
Daniel Albornoz V\'asquez
Daniel Albornoz V\'asquez
Light Neutralinos in the NMSSM
3 pages, 2 figures, proceedings for The 2011 Europhysics Conference on High Energy Physics-HEP 2011
PoS(EPS-HEP2011)389
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Next-to-Minimal Supersymmetric Standard Model neutralino dark matter candidates in the (1-15) GeV range are found with a Markov Chain Monte Carlo scanning code. A very light, singlet-like Higgs and/or CP-odd Higgs is needed in order to achieve such light masses. Light scalar Higgses can yield large direct detection c...
[ { "created": "Fri, 21 Oct 2011 15:10:32 GMT", "version": "v1" }, { "created": "Mon, 21 Nov 2011 16:55:41 GMT", "version": "v2" } ]
2012-04-19
[ [ "Vásquez", "Daniel Albornoz", "" ] ]
Next-to-Minimal Supersymmetric Standard Model neutralino dark matter candidates in the (1-15) GeV range are found with a Markov Chain Monte Carlo scanning code. A very light, singlet-like Higgs and/or CP-odd Higgs is needed in order to achieve such light masses. Light scalar Higgses can yield large direct detection cro...
hep-ph/0202030
Ricardo Gonzalez Felipe
G. C. Branco, R. Gonzalez Felipe, F. R. Joaquim, M. N. Rebelo
Leptogenesis, CP violation and neutrino data: What can we learn?
36 pages, 6 figures; new references added, final version to appear in Nucl. Phys. B
Nucl.Phys.B640:202-232,2002
10.1016/S0550-3213(02)00478-9
FISIST/03-2002/CFIF
hep-ph
null
A detailed analytic and numerical study of baryogenesis through leptogenesis is performed in the framework of the standard model of electroweak interactions extended by the addition of three right-handed neutrinos, leading to the seesaw mechanism. We analyze the connection between GUT-motivated relations for the quar...
[ { "created": "Mon, 4 Feb 2002 21:03:46 GMT", "version": "v1" }, { "created": "Wed, 26 Jun 2002 10:39:40 GMT", "version": "v2" } ]
2011-07-19
[ [ "Branco", "G. C.", "" ], [ "Felipe", "R. Gonzalez", "" ], [ "Joaquim", "F. R.", "" ], [ "Rebelo", "M. N.", "" ] ]
A detailed analytic and numerical study of baryogenesis through leptogenesis is performed in the framework of the standard model of electroweak interactions extended by the addition of three right-handed neutrinos, leading to the seesaw mechanism. We analyze the connection between GUT-motivated relations for the quark ...
hep-ph/0101001
Heui-Seol Roh
Heui-Seol Roh
Quantum Weakdynamics as an SU(3)_I Gauge Theory: Grand Unification of Strong and Electroweak Interactions
REVTeX, 20 pages, corrected typographic errors, revised Section II
Eur.Phys.J.C22:359-377,2001
10.1007/s100520100803
null
hep-ph
null
Quantum weakdynamics (QWD) as an SU(3)_I gauge theory with the Theta vacuum term is considered to be the unification of the electroweak interaction as an SU(2)_L x U(1)_Y gauge theory. The grand unification of SU(3)_I x SU(3)_C beyond the standard model SU(3)_C x SU(2)_L x U(1)_Y is established by the group SU(3)_I. ...
[ { "created": "Sat, 30 Dec 2000 05:03:29 GMT", "version": "v1" }, { "created": "Thu, 10 Jan 2002 07:10:21 GMT", "version": "v2" } ]
2008-11-26
[ [ "Roh", "Heui-Seol", "" ] ]
Quantum weakdynamics (QWD) as an SU(3)_I gauge theory with the Theta vacuum term is considered to be the unification of the electroweak interaction as an SU(2)_L x U(1)_Y gauge theory. The grand unification of SU(3)_I x SU(3)_C beyond the standard model SU(3)_C x SU(2)_L x U(1)_Y is established by the group SU(3)_I. Th...
2008.02895
Tianbo Liu
Tianbo Liu, W. Melnitchouk, Jian-Wei Qiu, N. Sato
Factorized approach to radiative corrections for inelastic lepton-hadron collisions
6 pages, 3 figures, accepted for publication in Phys. Rev. D
null
10.1103/PhysRevD.104.094033
JLAB-THY-20-3233
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a factorized approach to QED radiative corrections for inclusive and semi-inclusive deep-inelastic scattering to systematically account for QED and QCD radiation contributions to both processes on equal footing. This is achieved by utilizing factorization to resum logarithmically enhanced QED radiation int...
[ { "created": "Thu, 6 Aug 2020 22:27:09 GMT", "version": "v1" }, { "created": "Mon, 14 Sep 2020 16:15:26 GMT", "version": "v2" }, { "created": "Wed, 17 Mar 2021 14:27:53 GMT", "version": "v3" }, { "created": "Thu, 11 Nov 2021 14:12:28 GMT", "version": "v4" } ]
2021-12-01
[ [ "Liu", "Tianbo", "" ], [ "Melnitchouk", "W.", "" ], [ "Qiu", "Jian-Wei", "" ], [ "Sato", "N.", "" ] ]
We propose a factorized approach to QED radiative corrections for inclusive and semi-inclusive deep-inelastic scattering to systematically account for QED and QCD radiation contributions to both processes on equal footing. This is achieved by utilizing factorization to resum logarithmically enhanced QED radiation into ...
1307.1221
Krishna Kingkar Pathak
Krishna Kingkar Pathak and D K Choudhury
Semileptonic decay of $B_c$ meson into $c\bar c$ states in a QCD potential model
We are presently improving the manuscript
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The slope and curvature of Isgur Wise function for $B_{c}$ meson is computed in a QCD potential model in two different approaches of choosing the perturbative term of the Cornell potential. Based on heavy quark effective theory the exclusive semileptonic decay rates of $B_c$ meson into the $c\bar c\ (\eta_c,J/\psi)$ ...
[ { "created": "Thu, 4 Jul 2013 06:45:19 GMT", "version": "v1" }, { "created": "Mon, 5 Dec 2022 16:53:30 GMT", "version": "v2" } ]
2022-12-06
[ [ "Pathak", "Krishna Kingkar", "" ], [ "Choudhury", "D K", "" ] ]
The slope and curvature of Isgur Wise function for $B_{c}$ meson is computed in a QCD potential model in two different approaches of choosing the perturbative term of the Cornell potential. Based on heavy quark effective theory the exclusive semileptonic decay rates of $B_c$ meson into the $c\bar c\ (\eta_c,J/\psi)$ st...
1206.1453
George W. S. Hou
Wei-Shu Hou
Heavy QQ(bar) "Fireball" Annihilation to Multiple Vector Bosons
4 pages, 1 figure
null
10.1103/PhysRevD.86.037701
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Drawing analogy of replacing the nucleon by heavy chiral quark $Q$, the pion by Goldstone boson $G$, and $\pi NN$ coupling by $GQQ$ coupling, we construct a statistical model for $Q\bar Q \to nG$ annihilation, i.e. into $n$ longitudinal weak bosons. This analogy is becoming prescient since the LHC direct bound $m_Q >...
[ { "created": "Thu, 7 Jun 2012 11:21:46 GMT", "version": "v1" } ]
2013-05-30
[ [ "Hou", "Wei-Shu", "" ] ]
Drawing analogy of replacing the nucleon by heavy chiral quark $Q$, the pion by Goldstone boson $G$, and $\pi NN$ coupling by $GQQ$ coupling, we construct a statistical model for $Q\bar Q \to nG$ annihilation, i.e. into $n$ longitudinal weak bosons. This analogy is becoming prescient since the LHC direct bound $m_Q > 6...
hep-ph/9711435
Marco Aurelio Diaz
Marco Aurelio Diaz
The Minimal Supersymmetric Standard Model with a Bilinear R--Parity Violating Term
12 pages including 10 figures, Latex. Talk given at the International Workshop on Quantum Effects in the MSSM, 9--13 Sep. 1997, Barcelona, Spain
null
null
IFIC/97-87, FTUV/97-57
hep-ph
null
Some aspects of bilinear R-Parity violation, the simplest extension of the MSSM which does not conserve R-Parity, are reviewed in comparison with the MSSM. We put special emphasis on the effect of quantum corrections.
[ { "created": "Mon, 24 Nov 1997 12:59:24 GMT", "version": "v1" } ]
2007-05-23
[ [ "Diaz", "Marco Aurelio", "" ] ]
Some aspects of bilinear R-Parity violation, the simplest extension of the MSSM which does not conserve R-Parity, are reviewed in comparison with the MSSM. We put special emphasis on the effect of quantum corrections.
hep-ph/9802251
Shaouly Bar-Shalom
S. Bar-Shalom, G. Eilam and A. Soni
R-parity violation and CP-violating and CP-conserving spin asymmetries in l^+ l^- -> sneutrino -> tau^+ tau^-: probing sneutrino mixing at LEP2, NLC and mu^+mu^- colliders
12 pages, plain latex, 3 figures embadded in the text using epsfig
Phys. Rev. D 59, 055012 (1999)
10.1103/PhysRevLett.80.4629
UCRHEP-T215
hep-ph
null
We consider the sneutrino resonance reaction l^+ l^- -> sneutrino -> tau^+ tau^- in the MSSM without R-parity. We introduce new CP-violating and CP-conserving tau-spin asymmetries which are generated already at the tree-level if there is sneutrino - sneutrino-bar mixing and that are forbidden in the SM. It is remarka...
[ { "created": "Thu, 5 Feb 1998 01:25:13 GMT", "version": "v1" } ]
2016-08-25
[ [ "Bar-Shalom", "S.", "" ], [ "Eilam", "G.", "" ], [ "Soni", "A.", "" ] ]
We consider the sneutrino resonance reaction l^+ l^- -> sneutrino -> tau^+ tau^- in the MSSM without R-parity. We introduce new CP-violating and CP-conserving tau-spin asymmetries which are generated already at the tree-level if there is sneutrino - sneutrino-bar mixing and that are forbidden in the SM. It is remarkabl...