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hep-ph/0205293
Hanns L. Harney
H.L. Harney
Reply to the Comment on "Evidence for Neutrinoless Double Beta Decay" [Mod. Phys. Lett. A 16(2001)2409]
3 pages
Mod.Phys.Lett. A16 (2001) 2409
null
null
hep-ph
null
As a coauthor of the article mentioned in the title, I discuss the criticism in the comment of Aalseth et al. Part of the criticism is justified.
[ { "created": "Sat, 25 May 2002 10:19:33 GMT", "version": "v1" } ]
2007-05-23
[ [ "Harney", "H. L.", "" ] ]
As a coauthor of the article mentioned in the title, I discuss the criticism in the comment of Aalseth et al. Part of the criticism is justified.
hep-ph/9907515
Dr. Dubravko Klabucar
Bojan Bistrovic and Dubravko Klabucar
The quark loop calculation of the gamma -> 3 pi form factor
revtex, 12 pages including 3 eps figures
Phys.Rev. D61 (2000) 033006
10.1103/PhysRevD.61.033006
Zagreb University preprint ZTF-99/08
hep-ph nucl-th
null
The presently experimentally interesting form factor for the anomalous process gamma -> pi^+ pi^0 pi^- is calculated as the quark "box"-amplitude where the intermediate fermion loop is the one of constituent quarks with the pseudoscalar coupling to pions. This also corresponds to the form factor, in the lowest order ...
[ { "created": "Tue, 27 Jul 1999 15:41:35 GMT", "version": "v1" }, { "created": "Wed, 28 Jul 1999 00:31:31 GMT", "version": "v2" } ]
2009-10-31
[ [ "Bistrovic", "Bojan", "" ], [ "Klabucar", "Dubravko", "" ] ]
The presently experimentally interesting form factor for the anomalous process gamma -> pi^+ pi^0 pi^- is calculated as the quark "box"-amplitude where the intermediate fermion loop is the one of constituent quarks with the pseudoscalar coupling to pions. This also corresponds to the form factor, in the lowest order in...
hep-ph/0304292
Johannes Bluemlein
J. Bl\"umlein, V. Ravindran, and W.L. van Neerven
Twist-2 Heavy Flavor Contributions to the Structure Function $g_2(x,Q^2)$
17 pages LATEX, 1 style files, 4 figures
Phys.Rev. D68 (2003) 114004
10.1103/PhysRevD.68.114004
DESY 01-072, INLO-PUB-07/03, SFB/CPP-03-08
hep-ph hep-ex
null
The twist--2 heavy flavor contributions to the polarized structure function $g_2(x,Q^2)$ are calculated. We show that this part of $g_2(x,Q^2)$ is related to the heavy flavor contribution to $g_1(x,Q^2)$ by the Wandzura--Wilczek relation to all orders in the strong coupling constant. Numerical results are presented.
[ { "created": "Wed, 30 Apr 2003 14:54:04 GMT", "version": "v1" } ]
2016-09-06
[ [ "Blümlein", "J.", "" ], [ "Ravindran", "V.", "" ], [ "van Neerven", "W. L.", "" ] ]
The twist--2 heavy flavor contributions to the polarized structure function $g_2(x,Q^2)$ are calculated. We show that this part of $g_2(x,Q^2)$ is related to the heavy flavor contribution to $g_1(x,Q^2)$ by the Wandzura--Wilczek relation to all orders in the strong coupling constant. Numerical results are presented.
hep-ph/9808206
Aleksey I. Alekseev
Aleksey I. Alekseev
The Model for QCD Running Coupling Constant with Dynamically Generated Mass and Enhancement in the Infrared Region
10 pages, LATEX, 3 figures
null
null
IHEP 98-41
hep-ph
null
Nonperturbative studies of the strong running coupling constant in the infrared region are discussed. Starting from the analyses of the Dyson -- Schwinger equations in the gauge sector of QCD, the conclusion is made on an incomplete fixing of the perturbation theory summation ambiguity within "(forced) analytization ...
[ { "created": "Mon, 3 Aug 1998 09:11:18 GMT", "version": "v1" } ]
2007-05-23
[ [ "Alekseev", "Aleksey I.", "" ] ]
Nonperturbative studies of the strong running coupling constant in the infrared region are discussed. Starting from the analyses of the Dyson -- Schwinger equations in the gauge sector of QCD, the conclusion is made on an incomplete fixing of the perturbation theory summation ambiguity within "(forced) analytization pr...
hep-ph/0702245
Maxim Chernodub
M. N. Chernodub and V. I. Zakharov
Magnetic strings as part of Yang-Mills plasma
15 pages, no figures, uses ws-procs9x6 style. Talk by V.I.Z. at SCGT06 workshop, Nagoya, Japan (November 2006)
null
10.1142/9789812790750_0008
ITEP-LAT/07-02, KANAZAWA/07-01
hep-ph cond-mat.other hep-lat hep-th physics.plasm-ph
null
Magnetic strings are defined as infinitely thin surfaces which are closed in the vacuum and can be open on an external monopole trajectory (that is, defined by 't Hooft loop). We review briefly lattice data on the magnetic strings which refer mostly to SU(2) and SU(3) pure Yang-Mills theories and concentrate on impli...
[ { "created": "Fri, 23 Feb 2007 21:33:15 GMT", "version": "v1" } ]
2017-08-23
[ [ "Chernodub", "M. N.", "" ], [ "Zakharov", "V. I.", "" ] ]
Magnetic strings are defined as infinitely thin surfaces which are closed in the vacuum and can be open on an external monopole trajectory (that is, defined by 't Hooft loop). We review briefly lattice data on the magnetic strings which refer mostly to SU(2) and SU(3) pure Yang-Mills theories and concentrate on implica...
1407.4576
Dremin
I.M. Dremin
The robust impact parameter profile of inelastic collisions
5 pages, no Figures
null
10.1134/S0021364014200041
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is shown that the impact parameter profile of inelastic hadron collisions is robust to admissible variations of the shape of the diffraction cone of elastic scattering. This conclusion is obtained using the unitarity condition and experimental data only with no phenomenological model inputs.
[ { "created": "Thu, 17 Jul 2014 06:52:56 GMT", "version": "v1" } ]
2015-06-22
[ [ "Dremin", "I. M.", "" ] ]
It is shown that the impact parameter profile of inelastic hadron collisions is robust to admissible variations of the shape of the diffraction cone of elastic scattering. This conclusion is obtained using the unitarity condition and experimental data only with no phenomenological model inputs.
hep-ph/0301147
J. T. Londergan
J.T. Londergan and A.W. Thomas
Charge Symmetry Violating Contributions to Neutrino Reactions
15 pages, 2 figures; Fig 2 replaced [CSV distribution calculated at low Q^2, evolved to 20 GeV^2]; table II changed
Phys.Lett.B558:132-140,2003
10.1016/S0370-2693(03)00267-3
null
hep-ph
null
The NuTeV group has measured charged and neutral current reactions for neutrinos on iron targets. Ratios of these cross sections provide an independent measurement of the Weinberg angle. The NuTeV value for sin^2 theta_W is three standard deviations larger than the value measured in other electroweak processes. By re...
[ { "created": "Sat, 18 Jan 2003 21:17:16 GMT", "version": "v1" }, { "created": "Tue, 18 Mar 2003 19:35:05 GMT", "version": "v2" }, { "created": "Mon, 12 May 2003 14:49:39 GMT", "version": "v3" } ]
2010-02-17
[ [ "Londergan", "J. T.", "" ], [ "Thomas", "A. W.", "" ] ]
The NuTeV group has measured charged and neutral current reactions for neutrinos on iron targets. Ratios of these cross sections provide an independent measurement of the Weinberg angle. The NuTeV value for sin^2 theta_W is three standard deviations larger than the value measured in other electroweak processes. By revi...
1911.07419
Fu-Hu Liu
Li-Li Li, Fu-Hu Liu, Muhammad Waqas, Rasha Al-Yusufi, Altaf Mujear
Excitation functions of related parameters from transverse momentum (mass) spectra in high energy collisions
20 pages, 6 figures. Advances in High Energy Physics, accepted
Advances in High Energy Physics 2020, 5356705 (2020) (21 pages)
10.1155/2020/5356705
null
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Transverse momentum (mass) spectra of positively and negatively charged pions, positively and negatively charged kaons, protons and antiprotons produced at mid-(pseudo)rapidity in various collisions at high energies are analyzed in this work. The experimental data measured in central gold-gold, central lead-lead, and...
[ { "created": "Mon, 18 Nov 2019 04:18:11 GMT", "version": "v1" }, { "created": "Fri, 24 Apr 2020 09:43:10 GMT", "version": "v2" } ]
2020-06-16
[ [ "Li", "Li-Li", "" ], [ "Liu", "Fu-Hu", "" ], [ "Waqas", "Muhammad", "" ], [ "Al-Yusufi", "Rasha", "" ], [ "Mujear", "Altaf", "" ] ]
Transverse momentum (mass) spectra of positively and negatively charged pions, positively and negatively charged kaons, protons and antiprotons produced at mid-(pseudo)rapidity in various collisions at high energies are analyzed in this work. The experimental data measured in central gold-gold, central lead-lead, and i...
hep-ph/9906424
Ma Bo-Qiang
Bo-Qiang Ma, Ivan Schmidt, and Jian-Jun Yang
Flavor and Spin Structure of $\Lambda$-Baryon at Large x
13 latex pages, one figure added, three eps figures, abstract and discussions changed, prediction comparison with new experimental data added, version to appear in PLB
Phys.Lett. B477 (2000) 107-113
10.1016/S0370-2693(00)00167-2
USM-TH-77
hep-ph hep-ex nucl-th
null
It is shown that a perturbative QCD (pQCD) based analysis and the SU(6) quark-diquark model give significant different predictions concerning the flavor and spin structure for the quark distributions of the $\Lambda$-baryon near $x=1$. Detailed predictions for the ratios $u(x)/s(x)$ of unpolarized quark distributions...
[ { "created": "Thu, 17 Jun 1999 23:30:17 GMT", "version": "v1" }, { "created": "Wed, 23 Feb 2000 03:52:21 GMT", "version": "v2" } ]
2009-10-31
[ [ "Ma", "Bo-Qiang", "" ], [ "Schmidt", "Ivan", "" ], [ "Yang", "Jian-Jun", "" ] ]
It is shown that a perturbative QCD (pQCD) based analysis and the SU(6) quark-diquark model give significant different predictions concerning the flavor and spin structure for the quark distributions of the $\Lambda$-baryon near $x=1$. Detailed predictions for the ratios $u(x)/s(x)$ of unpolarized quark distributions, ...
hep-ph/9901372
Kresimir Kumericki
J.O. Eeg, K. Kumericki, I. Picek
Long vs. short distance dispersive two-photon K_L \to \mu^+ \mu^- amplitude
5 pages, 2 figures, presented by K.K. on the conference "Nuclear and Particle Physics with CEBAF", Dubrovnik, Croatia, Nov 3-10, 1998
null
null
ZTF-99/01
hep-ph
null
We report on the calculation of the two-loop electroweak, two-photon mediated short-distance dispersive K_L \to \mu^+\mu^- decay amplitude. QCD corrections change the sign of this contribution and reduce it by an order of magnitude. The resulting amplitude enables us to provide a constraint on the otherwise uncertain...
[ { "created": "Thu, 21 Jan 1999 14:45:36 GMT", "version": "v1" } ]
2007-05-23
[ [ "Eeg", "J. O.", "" ], [ "Kumericki", "K.", "" ], [ "Picek", "I.", "" ] ]
We report on the calculation of the two-loop electroweak, two-photon mediated short-distance dispersive K_L \to \mu^+\mu^- decay amplitude. QCD corrections change the sign of this contribution and reduce it by an order of magnitude. The resulting amplitude enables us to provide a constraint on the otherwise uncertain l...
1002.0399
Feng Yuan
Zhongbo Kang, Feng Yuan, Jian Zhou
Twist-three Fragmentation Function Contribution to the Single Spin Asymmetry in pp Collisions
10 pages, 3 ps figures
Phys.Lett.B691:243-248,2010
10.1016/j.physletb.2010.07.003
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the twist-three fragmentation function contribution to the single transverse spin asymmetries in inclusive hadron production in pp collisions, pp->h+X. In particular, we evaluate the so-called derivative contribution which dominates the spin asymmetry in the forward direction of the polarized proton. With ce...
[ { "created": "Tue, 2 Feb 2010 06:10:33 GMT", "version": "v1" } ]
2014-11-20
[ [ "Kang", "Zhongbo", "" ], [ "Yuan", "Feng", "" ], [ "Zhou", "Jian", "" ] ]
We study the twist-three fragmentation function contribution to the single transverse spin asymmetries in inclusive hadron production in pp collisions, pp->h+X. In particular, we evaluate the so-called derivative contribution which dominates the spin asymmetry in the forward direction of the polarized proton. With cert...
hep-ph/9411349
Jiri Rames
J. Rame\v{s}
On the charge dependence of factorial moments in $e^+e^-$ processes
Latex, 8 pages, 5 figures in an uuencoded file appended at the end of the file. Redundant part of the original file removed
null
null
HEP-PH/94--11
hep-ph
null
The behaviour of like-charge and unlike-charge second factorial moments in $e^+e^-$ reactions is discussed. It is argued that Monte Carlo calculation with the help of generators JETSET 7.4 and HERWIG 5.8 points to the conclusion that the only nontrivial cause of intermittency are Bose-Einstein correlations of identic...
[ { "created": "Mon, 21 Nov 1994 15:24:04 GMT", "version": "v1" }, { "created": "Tue, 22 Nov 1994 15:44:39 GMT", "version": "v2" } ]
2008-02-03
[ [ "Rameš", "J.", "" ] ]
The behaviour of like-charge and unlike-charge second factorial moments in $e^+e^-$ reactions is discussed. It is argued that Monte Carlo calculation with the help of generators JETSET 7.4 and HERWIG 5.8 points to the conclusion that the only nontrivial cause of intermittency are Bose-Einstein correlations of identical...
hep-ph/0109182
Claus Bloechinger
C. Bloechinger, H. Fraas and T. Mayer
Selectron Pair Production in Electron-Electron-Scattering
4 pages, 4 figures, Talk given at the 9th International Conference on Supersymmetry and Unification of Fundamental Interactions, Dubna, June 11-17 2001
null
null
WUE-ITP-2001-027
hep-ph
null
We investigate pair production of selectrons in electron-electron-scattering with subsequent decay into an electron and the LSP including ISR and beamstrahlung. This process can be used at a linear collider to measure the selectron masses and the gaugino mass parameter M_1 very precisely.
[ { "created": "Thu, 20 Sep 2001 13:00:09 GMT", "version": "v1" } ]
2007-05-23
[ [ "Bloechinger", "C.", "" ], [ "Fraas", "H.", "" ], [ "Mayer", "T.", "" ] ]
We investigate pair production of selectrons in electron-electron-scattering with subsequent decay into an electron and the LSP including ISR and beamstrahlung. This process can be used at a linear collider to measure the selectron masses and the gaugino mass parameter M_1 very precisely.
1308.1159
Zuo-Tang Liang
Yu-kun Song, Jian-hua Gao, Zuo-tang Liang and Xin-Nian Wang
Azimuthal asymmetries in semi-inclusive DIS with polarized beam and/or target and their nuclear dependences
version to appear in Phys. Rev. D
Phys. Rev. D 89, 014005 (2014)
10.1103/PhysRevD.89.014005
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Using the formalism obtained from collinear expansion, we calculate the differential cross section and azimuthal asymmetries in semi-inclusive deeply inelastic lepton-nucleon (nucleus) scattering process $e^-+N (A) \to e^-+q+X$ with both polarized beam and polarized target up to twist-3. We derive the azimuthal asymm...
[ { "created": "Tue, 6 Aug 2013 02:50:02 GMT", "version": "v1" }, { "created": "Thu, 5 Dec 2013 13:13:59 GMT", "version": "v2" } ]
2014-01-15
[ [ "Song", "Yu-kun", "" ], [ "Gao", "Jian-hua", "" ], [ "Liang", "Zuo-tang", "" ], [ "Wang", "Xin-Nian", "" ] ]
Using the formalism obtained from collinear expansion, we calculate the differential cross section and azimuthal asymmetries in semi-inclusive deeply inelastic lepton-nucleon (nucleus) scattering process $e^-+N (A) \to e^-+q+X$ with both polarized beam and polarized target up to twist-3. We derive the azimuthal asymmet...
2310.02126
Hai-Jun Li
Hai-Jun Li, Ying-Quan Peng, Wei Chao, Yu-Feng Zhou
Light QCD Axion Dark Matter from Double Level Crossings
6 pages, 1 figure. Published in PLB
null
null
ITP-23-205, BNU-23-121
hep-ph astro-ph.CO
http://creativecommons.org/licenses/by/4.0/
The even light QCD axion called the $Z_{\mathcal N}$ axion can both solve the strong CP problem and account for the dark matter (DM). We point out that the single and double level crossings can naturally take place in the mass mixing between the $Z_{\mathcal N}$ axion and axionlike particle (ALP). The first level cro...
[ { "created": "Tue, 3 Oct 2023 15:07:31 GMT", "version": "v1" }, { "created": "Thu, 4 Jan 2024 07:00:47 GMT", "version": "v2" } ]
2024-01-05
[ [ "Li", "Hai-Jun", "" ], [ "Peng", "Ying-Quan", "" ], [ "Chao", "Wei", "" ], [ "Zhou", "Yu-Feng", "" ] ]
The even light QCD axion called the $Z_{\mathcal N}$ axion can both solve the strong CP problem and account for the dark matter (DM). We point out that the single and double level crossings can naturally take place in the mass mixing between the $Z_{\mathcal N}$ axion and axionlike particle (ALP). The first level cross...
hep-ph/0201012
Smirnov Alexei
Ara N. Ioannisian and Alexei Yu. Smirnov
Matter Effects of Thin Layers: Detecting Oil by Oscillations of Solar Neutrinos
18 pages, latex, 2 figure
null
null
null
hep-ph
null
We consider a possibility to use the solar neutrinos for studies of small scale structures of the Earth and for geological research. Effects of thin layers of matter with density contrast on oscillations of Beryllium neutrinos inside the Earth are studied. We find that change of the $^7Be$ neutrino flux can reach 0.1...
[ { "created": "Thu, 3 Jan 2002 19:38:40 GMT", "version": "v1" }, { "created": "Sun, 16 Mar 2003 11:59:30 GMT", "version": "v2" } ]
2007-05-23
[ [ "Ioannisian", "Ara N.", "" ], [ "Smirnov", "Alexei Yu.", "" ] ]
We consider a possibility to use the solar neutrinos for studies of small scale structures of the Earth and for geological research. Effects of thin layers of matter with density contrast on oscillations of Beryllium neutrinos inside the Earth are studied. We find that change of the $^7Be$ neutrino flux can reach 0.1 %...
1608.04096
Carlo Giunti Dr.
Carlo Giunti
Precise Determination of the U-235 Reactor Antineutrino Cross Section per Fission
9 pages. Final version published in Physics Letters B 764 (2017) 145
null
10.1016/j.physletb.2016.11.028
null
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate which among the reactor antineutrino fluxes from the decays of the fission products of $^{235}\text{U}$, $^{238}\text{U}$, $^{239}\text{Pu}$, and $^{241}\text{Pu}$ may be responsible for the reactor antineutrino anomaly if the anomaly is due to a miscalculation of the antineutrino fluxes. We find that ...
[ { "created": "Sun, 14 Aug 2016 12:52:18 GMT", "version": "v1" }, { "created": "Thu, 18 Aug 2016 13:23:04 GMT", "version": "v2" }, { "created": "Fri, 19 Aug 2016 12:50:00 GMT", "version": "v3" }, { "created": "Thu, 20 Oct 2016 14:57:35 GMT", "version": "v4" }, { "c...
2017-01-04
[ [ "Giunti", "Carlo", "" ] ]
We investigate which among the reactor antineutrino fluxes from the decays of the fission products of $^{235}\text{U}$, $^{238}\text{U}$, $^{239}\text{Pu}$, and $^{241}\text{Pu}$ may be responsible for the reactor antineutrino anomaly if the anomaly is due to a miscalculation of the antineutrino fluxes. We find that it...
1103.4194
Maarten F. L. Golterman
Diogo Boito, Oscar Cata, Maarten Golterman, Matthias Jamin, Kim Maltman, James Osborne, Santiago Peris
Duality violations in hadronic tau decays and the value of alpha_s
2 pages, contribution to Workshop on Precision Measurements of alpha_S, Feb. 9-11, 2011, Munich, Germany
null
null
null
hep-ph hep-ex hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the quantitative impact of duality violations on the determination of the strong coupling constant from hadronic tau decays, based on a preliminary analysis of OPAL data.
[ { "created": "Tue, 22 Mar 2011 03:04:35 GMT", "version": "v1" } ]
2011-03-23
[ [ "Boito", "Diogo", "" ], [ "Cata", "Oscar", "" ], [ "Golterman", "Maarten", "" ], [ "Jamin", "Matthias", "" ], [ "Maltman", "Kim", "" ], [ "Osborne", "James", "" ], [ "Peris", "Santiago", "" ] ]
We discuss the quantitative impact of duality violations on the determination of the strong coupling constant from hadronic tau decays, based on a preliminary analysis of OPAL data.
hep-ph/9505210
Kari Enqvist
Kari Enqvist, Jukka Maalampi and V.B. Semikoz
Neutrino conversions in hot plasma
22 pages LaTeX, 1 uuencoded figure in a separate file
Nucl.Phys. B456 (1995) 339-354
10.1016/0550-3213(98)00480-5
HU-TFT-95-28
hep-ph
null
We discuss the excitation of sterile neutrinos in the early universe using general quantum kinetic equations, which also incorporate a possible primordial magnetic field $B$. We find a new contribution to the excitation propability, which has its origin in the shrinkage of the spin vector. In the absence of $B$ nucle...
[ { "created": "Tue, 2 May 1995 10:31:34 GMT", "version": "v1" } ]
2009-10-28
[ [ "Enqvist", "Kari", "" ], [ "Maalampi", "Jukka", "" ], [ "Semikoz", "V. B.", "" ] ]
We discuss the excitation of sterile neutrinos in the early universe using general quantum kinetic equations, which also incorporate a possible primordial magnetic field $B$. We find a new contribution to the excitation propability, which has its origin in the shrinkage of the spin vector. In the absence of $B$ nucleos...
1010.4261
Sebastian Grab
Benjamin C. Allanach, Sebastian Grab and Howard E. Haber
Supersymmetric Monojets at the Large Hadron Collider
46 pages, 10 figures. The appendix has been rewritten to correct an error that appears in all previous versions of the appendix. This error has no effect on the results in the main body of the paper
JHEP 1101:138,2011; Erratum-ibid.1107:087,2011; Erratum-ibid.1109:027,2011
10.1007/JHEP01(2011)138 10.1007/JHEP07(2011)087 10.1007/JHEP09(2011)027
DAMTP-2010-83, SCIPP-10/16
hep-ph astro-ph.HE hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Supersymmetric monojets may be produced at the Large Hadron Collider by the process qg -> squark neutralino_1 -> q neutralino_1 neutralino_1, leading to a jet recoiling against missing transverse momentum. We discuss the feasibility and utility of the supersymmetric monojet signal. In particular, we examine the possi...
[ { "created": "Wed, 20 Oct 2010 17:51:20 GMT", "version": "v1" }, { "created": "Tue, 26 Oct 2010 23:45:22 GMT", "version": "v2" }, { "created": "Thu, 16 Dec 2010 16:10:03 GMT", "version": "v3" }, { "created": "Sun, 3 Jul 2011 15:39:52 GMT", "version": "v4" }, { "cr...
2015-03-17
[ [ "Allanach", "Benjamin C.", "" ], [ "Grab", "Sebastian", "" ], [ "Haber", "Howard E.", "" ] ]
Supersymmetric monojets may be produced at the Large Hadron Collider by the process qg -> squark neutralino_1 -> q neutralino_1 neutralino_1, leading to a jet recoiling against missing transverse momentum. We discuss the feasibility and utility of the supersymmetric monojet signal. In particular, we examine the possibl...
0906.2523
Sourendu Gupta
S. Chatterjee, R. M. Godbole, Sourendu Gupta
Stabilizing Hadron Resonance Gas Models against Future Discoveries
null
Phys.Rev.C81:044907,2010
10.1103/PhysRevC.81.044907
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We examine the stability of hadron resonance gas models by extending them to take care of undiscovered resonances through the Hagedorn formula. We find that the influence of unknown resonances on thermodynamics is large but bounded. Hadron resonance gases are internally consistent up to a temperature higher than the ...
[ { "created": "Sun, 14 Jun 2009 09:45:50 GMT", "version": "v1" }, { "created": "Tue, 22 Dec 2009 05:24:27 GMT", "version": "v2" } ]
2010-04-29
[ [ "Chatterjee", "S.", "" ], [ "Godbole", "R. M.", "" ], [ "Gupta", "Sourendu", "" ] ]
We examine the stability of hadron resonance gas models by extending them to take care of undiscovered resonances through the Hagedorn formula. We find that the influence of unknown resonances on thermodynamics is large but bounded. Hadron resonance gases are internally consistent up to a temperature higher than the cr...
hep-ph/0512215
Bilenky Samoil
S. M. Bilenky
Neutrino Oscillations and Time-Energy Uncertainty Relation
14 pages
null
null
null
hep-ph
null
Neutrino oscillations is a phenomenon which is characterized by a finite oscillation time (length). For such phenomena time-energy uncertainty relation is valid. This means that energy uncertainty is needed for oscillations to occur. We consider neutrino oscillations from this point of view. We demonstrate that for m...
[ { "created": "Fri, 16 Dec 2005 11:12:58 GMT", "version": "v1" } ]
2007-05-23
[ [ "Bilenky", "S. M.", "" ] ]
Neutrino oscillations is a phenomenon which is characterized by a finite oscillation time (length). For such phenomena time-energy uncertainty relation is valid. This means that energy uncertainty is needed for oscillations to occur. We consider neutrino oscillations from this point of view. We demonstrate that for mix...
1512.07733
Can Kilic
Nathaniel Craig, Patrick Draper, Can Kilic, Scott Thomas
Shedding Light on Diphoton Resonances
32 pages, 4 figures. v2: Title changed, additional minor modifications in the text (conclusions unchanged), references added. v3: Minor modifications (conclusions unchanged), matches published version
Phys. Rev. D 93, 115023 (2016)
10.1103/PhysRevD.93.115023
UTTG-28-15
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The experimental and theoretical implications of heavy digauge boson resonances that couple to, or are comprised of, new charged and strongly interacting matter are investigated. Observation and measurement of ratios of the resonant digauge boson channels $WW$, $ZZ$, $\gamma \gamma$, $Z \gamma$, and $gg$ in the form ...
[ { "created": "Thu, 24 Dec 2015 07:13:23 GMT", "version": "v1" }, { "created": "Sun, 27 Mar 2016 20:50:08 GMT", "version": "v2" }, { "created": "Mon, 27 Jun 2016 15:09:48 GMT", "version": "v3" } ]
2016-06-28
[ [ "Craig", "Nathaniel", "" ], [ "Draper", "Patrick", "" ], [ "Kilic", "Can", "" ], [ "Thomas", "Scott", "" ] ]
The experimental and theoretical implications of heavy digauge boson resonances that couple to, or are comprised of, new charged and strongly interacting matter are investigated. Observation and measurement of ratios of the resonant digauge boson channels $WW$, $ZZ$, $\gamma \gamma$, $Z \gamma$, and $gg$ in the form of...
hep-ph/0305132
Hanwen Haung
H. W. Huang, T. Morii
One-Loop Helicity Amplitudes for Parton Level Virtual Compton Scattering
16 pages, 2 figures, detailed comparison with DVCS included
Phys.Rev. D68 (2003) 014016
10.1103/PhysRevD.68.014016
null
hep-ph
null
We calculate the one-loop QCD virtual corrections to all helicity amplitudes for parton level virtual Compton scattering processes. We include the amplitudes both on quark target process $\gamma^* q\to\gamma q$ and on gluon target process $\gamma^*g\to\gamma g$. The infrared pole structure of the amplitudes is in agr...
[ { "created": "Tue, 13 May 2003 03:40:10 GMT", "version": "v1" }, { "created": "Sun, 18 May 2003 03:54:08 GMT", "version": "v2" }, { "created": "Thu, 29 May 2003 23:43:50 GMT", "version": "v3" } ]
2009-11-10
[ [ "Huang", "H. W.", "" ], [ "Morii", "T.", "" ] ]
We calculate the one-loop QCD virtual corrections to all helicity amplitudes for parton level virtual Compton scattering processes. We include the amplitudes both on quark target process $\gamma^* q\to\gamma q$ and on gluon target process $\gamma^*g\to\gamma g$. The infrared pole structure of the amplitudes is in agree...
2105.07972
Giovanni Pelliccioli
Ezio Maina and Giovanni Pelliccioli
Polarized Z bosons from the decay of a Higgs boson produced in association with two jets at the LHC
14 pages, matches version published in EPJC
null
10.1140/epjc/s10052-021-09774-6
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Investigating the polarization of weak bosons provides an important probe of the scalar and gauge sector of the Standard Model. This can be done in the Higgs decay to four leptons, whose Standard-Model leading-order amplitude enables to generate polarized observables from unpolarized ones via a fully-differential rew...
[ { "created": "Mon, 17 May 2021 15:53:08 GMT", "version": "v1" }, { "created": "Fri, 14 Jan 2022 17:08:31 GMT", "version": "v2" } ]
2022-01-17
[ [ "Maina", "Ezio", "" ], [ "Pelliccioli", "Giovanni", "" ] ]
Investigating the polarization of weak bosons provides an important probe of the scalar and gauge sector of the Standard Model. This can be done in the Higgs decay to four leptons, whose Standard-Model leading-order amplitude enables to generate polarized observables from unpolarized ones via a fully-differential rewei...
1904.07029
Ilaria Brivio
Ilaria Brivio
The Neutrino Option
Talk presented at NuPhys2018 (London, 19-21 December 2018). 8 pages, LaTeX, 5 pdf figures. typos and equations corrected
null
null
NuPhys2018-Brivio
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Neutrino Option is a scenario where the Higgs mass is generated at the same time as neutrino masses in the type-I seesaw model. This framework provides a dynamical origin for the scalar potential of the Standard Model and suggests a new approach to the hierarchy problem. Here we review the preliminary analysis of...
[ { "created": "Mon, 15 Apr 2019 13:24:15 GMT", "version": "v1" }, { "created": "Sat, 27 Apr 2019 11:07:14 GMT", "version": "v2" } ]
2019-04-30
[ [ "Brivio", "Ilaria", "" ] ]
The Neutrino Option is a scenario where the Higgs mass is generated at the same time as neutrino masses in the type-I seesaw model. This framework provides a dynamical origin for the scalar potential of the Standard Model and suggests a new approach to the hierarchy problem. Here we review the preliminary analysis of R...
1912.09446
Barry Chiang
Barry T. Chiang, Stuart L. Shapiro, and Jessie Shelton
Faint Dark Matter Annihilation Signals and the Milky Way's Supermassive Black Hole
11 pages, 10 figures; V2, version accepted to PRD
Phys. Rev. D 102, 023030 (2020)
10.1103/PhysRevD.102.023030
null
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A wide range of mechanisms predict present-day s-wave dark matter (DM) annihilation cross-sections that are orders of magnitude below current experimental sensitivity. We explore the capability of DM density spikes around the Milky Way's supermassive black hole to probe such faint signals of DM annihilations, conside...
[ { "created": "Thu, 19 Dec 2019 18:23:55 GMT", "version": "v1" }, { "created": "Fri, 10 Jul 2020 01:38:51 GMT", "version": "v2" } ]
2020-07-29
[ [ "Chiang", "Barry T.", "" ], [ "Shapiro", "Stuart L.", "" ], [ "Shelton", "Jessie", "" ] ]
A wide range of mechanisms predict present-day s-wave dark matter (DM) annihilation cross-sections that are orders of magnitude below current experimental sensitivity. We explore the capability of DM density spikes around the Milky Way's supermassive black hole to probe such faint signals of DM annihilations, consideri...
1308.5375
Xing-Gang Wu
Gu Chen, Xing-Gang Wu, Zhan Sun, Sheng-Quan Wang and Jian-Ming Shen
Exclusive charmonium production from $e^+ e^-$ annihilation round the $Z^0$ peak
19 pages, 9 figures. References and discussions updated. To be published in Phys.Rev.D
Phys. Rev. D 88, 074021 (2013)
10.1103/PhysRevD.88.074021
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We make a comparative and comprehensive study on the charmonium exclusive productions at the $e^+e^-$ collider with the collision energy either round the $Z^0$-boson mass for a super $Z$ factory or equals to 10.6 GeV for the $B$ factories as Belle and BABAR. We study the total cross sections for the charmonium produc...
[ { "created": "Sun, 25 Aug 2013 04:57:16 GMT", "version": "v1" }, { "created": "Thu, 3 Oct 2013 02:19:14 GMT", "version": "v2" } ]
2013-10-22
[ [ "Chen", "Gu", "" ], [ "Wu", "Xing-Gang", "" ], [ "Sun", "Zhan", "" ], [ "Wang", "Sheng-Quan", "" ], [ "Shen", "Jian-Ming", "" ] ]
We make a comparative and comprehensive study on the charmonium exclusive productions at the $e^+e^-$ collider with the collision energy either round the $Z^0$-boson mass for a super $Z$ factory or equals to 10.6 GeV for the $B$ factories as Belle and BABAR. We study the total cross sections for the charmonium producti...
hep-ph/0610281
Tatsu Takeuchi
Minako Honda, Yee Kao, Naotoshi Okamura, Alexey Pronin, Tatsu Takeuchi
Constraints on New Physics from Matter Effects on Neutrino Oscillation
1 page. Summary of poster talk presented by Honda, Okamura, and Takeuchi at the YITP workshop "Progress in Particle Physics", July 31, 2006
null
null
VPI-IPPAP-06-06, OCHA-PP-269
hep-ph
null
We discuss whether constraints can be placed on new physics from a hypothetical Fermilab to Hyper-Kamiokande neutrino oscillation experiment.
[ { "created": "Sat, 21 Oct 2006 18:37:51 GMT", "version": "v1" } ]
2007-05-23
[ [ "Honda", "Minako", "" ], [ "Kao", "Yee", "" ], [ "Okamura", "Naotoshi", "" ], [ "Pronin", "Alexey", "" ], [ "Takeuchi", "Tatsu", "" ] ]
We discuss whether constraints can be placed on new physics from a hypothetical Fermilab to Hyper-Kamiokande neutrino oscillation experiment.
2102.07231
Toru Kojo
Toru Kojo, Daiki Suenaga
Thermal quarks and gluon propagators in two-color dense QCD
10 pages, 10 figures; v2 published in PRD
Phys. Rev. D 103, 094008 (2021)
10.1103/PhysRevD.103.094008
null
hep-ph astro-ph.HE hep-lat nucl-th
http://creativecommons.org/licenses/by/4.0/
We study Landau gauge gluon propagators in two-color QCD at finite quark chemical potential ($\mu_q$) and temperature ($T$). We include medium polarization effects at one-loop by quarks into massive gluon propagators, and compared the analytic results with the available lattice data. We particularly focus on the high...
[ { "created": "Sun, 14 Feb 2021 20:03:15 GMT", "version": "v1" }, { "created": "Tue, 4 May 2021 06:20:31 GMT", "version": "v2" } ]
2021-05-19
[ [ "Kojo", "Toru", "" ], [ "Suenaga", "Daiki", "" ] ]
We study Landau gauge gluon propagators in two-color QCD at finite quark chemical potential ($\mu_q$) and temperature ($T$). We include medium polarization effects at one-loop by quarks into massive gluon propagators, and compared the analytic results with the available lattice data. We particularly focus on the high d...
1407.5814
Asan Damanik
Asan Damanik
Nonzero $\theta_{13}$ and CP violation from Broken $\mu-\tau$ Symmetry with $m_{1}=0$
6 pages, no figure, title changed, Talk given at XXX-th International Workshop on High Energy Physics "Particle and Astroparticle Physics, Gravitation and Cosmology: Predictions, Observations and New Projects", Protvino, Russia, 23-27 June 2014
null
10.1142/9789814689304_0035
AD-Ph/USD/2014
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Nonzero of mixing angle $\theta_{13}$ has some phenomenological consequences on neutrino physics beyond the standard model. If the mixing angle $\theta_{13}\neq 0$, then there is the possibility of the CP violation existence on the neutrino sector. To obtain a nonzero of mixing angle $\theta_{13}$ from neutrino mass ...
[ { "created": "Tue, 22 Jul 2014 10:42:15 GMT", "version": "v1" }, { "created": "Sat, 18 Jul 2015 08:44:12 GMT", "version": "v2" } ]
2015-07-21
[ [ "Damanik", "Asan", "" ] ]
Nonzero of mixing angle $\theta_{13}$ has some phenomenological consequences on neutrino physics beyond the standard model. If the mixing angle $\theta_{13}\neq 0$, then there is the possibility of the CP violation existence on the neutrino sector. To obtain a nonzero of mixing angle $\theta_{13}$ from neutrino mass ma...
hep-ph/0106033
George Zoupanos
P. Manousselis and G. Zoupanos
Soft Supersymmetry Breaking due to Dimensional Reduction over Non-Symmetric Coset Spaces
14 pages, Latex, Comments related to the Scherk-Schwarz mechanism and relevant references added
Phys.Lett.B518:171-180,2001
10.1016/S0370-2693(01)01040-1
NTUA-05/01
hep-ph hep-th
null
A ten-dimensional supersymmetric $E_8$ gauge theory is compactified over six-dimensional coset spaces, establishing further our earlier conjecture that the resulting four dimensional theory is a softly broken supersymmetric gauge theory in the case that the used coset space is non-symmetric. The specific non-symmetri...
[ { "created": "Mon, 4 Jun 2001 13:23:57 GMT", "version": "v1" }, { "created": "Wed, 27 Jun 2001 15:09:49 GMT", "version": "v2" }, { "created": "Tue, 21 Aug 2001 15:23:22 GMT", "version": "v3" } ]
2011-07-19
[ [ "Manousselis", "P.", "" ], [ "Zoupanos", "G.", "" ] ]
A ten-dimensional supersymmetric $E_8$ gauge theory is compactified over six-dimensional coset spaces, establishing further our earlier conjecture that the resulting four dimensional theory is a softly broken supersymmetric gauge theory in the case that the used coset space is non-symmetric. The specific non-symmetric ...
1412.0647
Simonetta Liuti
Aurore Courtoy, Gary R. Goldstein, J. Osvaldo Gonzalez Hernandez, Simonetta Liuti, Abha Rajan
Identification of Observables for Quark and Gluon Orbital Angular Momentum
9 pages, 4 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A new debate has recently arisen on the subject of orbital angular momentum in QCD, in particular on its observability and on its partonic interpretation. Orbital momentum can be defined in QCD using two different decomposition schemes that yield a kinetic and a canonical definition, respectively. We argue that kinet...
[ { "created": "Mon, 1 Dec 2014 20:54:55 GMT", "version": "v1" } ]
2014-12-02
[ [ "Courtoy", "Aurore", "" ], [ "Goldstein", "Gary R.", "" ], [ "Hernandez", "J. Osvaldo Gonzalez", "" ], [ "Liuti", "Simonetta", "" ], [ "Rajan", "Abha", "" ] ]
A new debate has recently arisen on the subject of orbital angular momentum in QCD, in particular on its observability and on its partonic interpretation. Orbital momentum can be defined in QCD using two different decomposition schemes that yield a kinetic and a canonical definition, respectively. We argue that kinetic...
0810.2215
Cristian Pisano
Cristian Pisano
Dynamical next-to-next-to-leading order parton distributions and the perturbative stability of F_L(x,Q^2)
4 pages, 3 figures, 1 table, to appear in the proceedings of 14th International QCD Conference (QCD08), Montpellier, France, 7-12 July 2008
null
10.1016/j.nuclphysbps.2008.12.011
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is shown that the previously noted extreme perturbative instability of the longitudinal structure function F_L(x,Q^2) in the small Bjorken-$x$ region, is a mere artefact of the commonly utilized `standard' gluon distributions. In particular it is demonstrated that using the appropriate -- dynamically generated -- ...
[ { "created": "Mon, 13 Oct 2008 11:52:18 GMT", "version": "v1" } ]
2009-11-13
[ [ "Pisano", "Cristian", "" ] ]
It is shown that the previously noted extreme perturbative instability of the longitudinal structure function F_L(x,Q^2) in the small Bjorken-$x$ region, is a mere artefact of the commonly utilized `standard' gluon distributions. In particular it is demonstrated that using the appropriate -- dynamically generated -- pa...
hep-ph/0510011
Fabrizio Nesti
Z. Berezhiani, F. Nesti
Supersymmetric SO(10) for fermion masses and mixings: rank-1 structures of flavour
30 Pages, 3 figures. Clarified comments on neutrino scales and on universal seesaw, updated references. Version appeared on JHEP
JHEP 0603 (2006) 041
10.1088/1126-6708/2006/03/041
null
hep-ph
null
We consider a supersymmetric SO(10) model with a SU(3) symmetry of flavour in which fermion masses emerge via the see-saw mixing with superheavy fermions in 16+16bar representations. In this model the dangerous D=5 operators of proton decay are naturally suppressed and flavour-changing supersymmetric effects are unde...
[ { "created": "Sun, 2 Oct 2005 17:44:02 GMT", "version": "v1" }, { "created": "Wed, 5 Apr 2006 10:17:28 GMT", "version": "v2" } ]
2009-11-11
[ [ "Berezhiani", "Z.", "" ], [ "Nesti", "F.", "" ] ]
We consider a supersymmetric SO(10) model with a SU(3) symmetry of flavour in which fermion masses emerge via the see-saw mixing with superheavy fermions in 16+16bar representations. In this model the dangerous D=5 operators of proton decay are naturally suppressed and flavour-changing supersymmetric effects are under ...
0812.3628
Rouzbeh Allahverdi
Rouzbeh Allahverdi
Inflation and The Minimal Supersymmetric Standard Model
Brief review published in Modern Physics Letters A. 8 pages, 3 figures
Mod.Phys.Lett.A23:2799-2809,2008
10.1142/S0217732308028557
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
There is strong evidence from cosmological data that the universe underwent an epoch of superluminal expansion called inflation. A satisfactory embedding of inflation in fundamental physics has been an outstanding problem at the interface of cosmology and high energy physics. We show how inflation can be realized wit...
[ { "created": "Thu, 18 Dec 2008 19:05:49 GMT", "version": "v1" } ]
2008-12-26
[ [ "Allahverdi", "Rouzbeh", "" ] ]
There is strong evidence from cosmological data that the universe underwent an epoch of superluminal expansion called inflation. A satisfactory embedding of inflation in fundamental physics has been an outstanding problem at the interface of cosmology and high energy physics. We show how inflation can be realized withi...
2311.13161
Bing-Dong Wan
Bing-Dong Wan
Mass spectra of $0^{--}$ and $0^{+-}$ hidden-heavy baryoniums
27 pages, 17 figures, and 5 tables. Accepted by EPJC. arXiv admin note: text overlap with arXiv:2203.14014
null
10.1140/epjc/s10052-024-13126-5
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
In this work, the spectra of the prospective exotic hidden-charm and hidden-bottom baryonium, viz. the baryon-antibaryon states, with $J^{PC}=0^{--}$ and $0^{+-}$ are investigated in the framework of QCD sum rules. The non-perturbative contributions up to dimension 12 are taken into account. Numerical results indicat...
[ { "created": "Wed, 22 Nov 2023 05:07:41 GMT", "version": "v1" }, { "created": "Wed, 31 Jul 2024 00:14:23 GMT", "version": "v2" } ]
2024-08-01
[ [ "Wan", "Bing-Dong", "" ] ]
In this work, the spectra of the prospective exotic hidden-charm and hidden-bottom baryonium, viz. the baryon-antibaryon states, with $J^{PC}=0^{--}$ and $0^{+-}$ are investigated in the framework of QCD sum rules. The non-perturbative contributions up to dimension 12 are taken into account. Numerical results indicate ...
0711.1825
Helen Matskevich
S.M. Gerasyuta, E.E. Matskevich
Form factors of $S$-wave charmed baryon multiplet $J^P={1/2}^+$
8 pages, latex
null
null
null
hep-ph
null
Electric form factors of $S$-wave charmed baryons are calculated within the relativistic quark model in the region of low and intermediate momentum transfers, $Q^2 \le 1 GeV^2$. The charge radii of low-lying charmed baryons are determined.
[ { "created": "Mon, 12 Nov 2007 17:26:08 GMT", "version": "v1" } ]
2007-11-13
[ [ "Gerasyuta", "S. M.", "" ], [ "Matskevich", "E. E.", "" ] ]
Electric form factors of $S$-wave charmed baryons are calculated within the relativistic quark model in the region of low and intermediate momentum transfers, $Q^2 \le 1 GeV^2$. The charge radii of low-lying charmed baryons are determined.
1912.12781
Li-Ye Xiao
Li-Ye Xiao, Guang-Juan Wang, and Shi-Lin Zhu
The hidden-charm strong decays of the $Z_c$ states
9 pages, 5 fogures
Phys. Rev. D 101, 054001 (2020)
10.1103/PhysRevD.101.054001
null
hep-ph hep-ex hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Inspired by BESIII's measurement of the decay $Z_c(3900)^{\pm}\rightarrow \rho^{\pm}\eta_c$, we calculate the branching fraction ratio between the $\rho\eta_c$ and $\pi J/\psi$ decay modes for the charged states $Z_c(3900)$, $Z_c(4020)$ and $Z_c(4430)$ using a quark interchange model. Our results show that (i) the ra...
[ { "created": "Mon, 30 Dec 2019 01:53:50 GMT", "version": "v1" } ]
2020-03-11
[ [ "Xiao", "Li-Ye", "" ], [ "Wang", "Guang-Juan", "" ], [ "Zhu", "Shi-Lin", "" ] ]
Inspired by BESIII's measurement of the decay $Z_c(3900)^{\pm}\rightarrow \rho^{\pm}\eta_c$, we calculate the branching fraction ratio between the $\rho\eta_c$ and $\pi J/\psi$ decay modes for the charged states $Z_c(3900)$, $Z_c(4020)$ and $Z_c(4430)$ using a quark interchange model. Our results show that (i) the rati...
2209.08802
Hai-Bing Fu
Xuan Luo, Hai-Bing Fu, Hai-Jiang Tian, Cong Li
Next-to-leading-order QCD correction to the exclusive double charmonium production via $Z$ decays
8 pages, 4 figures
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
In this paper, we preformed a further research on the exclusive productions of double charmonium via $Z$-boson decay by using nonrelativistic QCD factorizations approach, where the single-photon fragmentation topologies of the QED diagrams, the interference terms between the QCD and full QED diagrams, the next-to-lea...
[ { "created": "Mon, 19 Sep 2022 07:18:37 GMT", "version": "v1" } ]
2022-09-20
[ [ "Luo", "Xuan", "" ], [ "Fu", "Hai-Bing", "" ], [ "Tian", "Hai-Jiang", "" ], [ "Li", "Cong", "" ] ]
In this paper, we preformed a further research on the exclusive productions of double charmonium via $Z$-boson decay by using nonrelativistic QCD factorizations approach, where the single-photon fragmentation topologies of the QED diagrams, the interference terms between the QCD and full QED diagrams, the next-to-leadi...
2309.04400
Steven Cotterill
Richard A. Battye, Steven J. Cotterill, Dominic G. Viatic
Global monopoles in the two-Higgs-doublet-model
12 pages, 4 figures
null
10.1016/j.physletb.2023.138091
null
hep-ph astro-ph.CO hep-th
http://creativecommons.org/licenses/by/4.0/
We discuss monopoles formed due to the spontaneous breakdown of a global $SO(3)_{\rm HF}$ symmetry within the global two-Higgs doublet model. We explain that the Higgs sector dynamics can be described in terms of two vectors one of which is null, $R^A=(R^0,R^a,R^4,R^5)$ for $a=1,2,3$, with 5 independent components de...
[ { "created": "Fri, 8 Sep 2023 15:54:12 GMT", "version": "v1" } ]
2023-09-11
[ [ "Battye", "Richard A.", "" ], [ "Cotterill", "Steven J.", "" ], [ "Viatic", "Dominic G.", "" ] ]
We discuss monopoles formed due to the spontaneous breakdown of a global $SO(3)_{\rm HF}$ symmetry within the global two-Higgs doublet model. We explain that the Higgs sector dynamics can be described in terms of two vectors one of which is null, $R^A=(R^0,R^a,R^4,R^5)$ for $a=1,2,3$, with 5 independent components desc...
hep-ph/9606316
Jose Ramon Espinosa
J.R. Espinosa (DESY)
Theoretical Higgs Mass Bounds in the Standard Model and Supersymmetric Extensions
37 pages, TeX, 15 postscript figures included
Surveys High Energ.Phys.10:279-311,1997
10.1080/01422419708219639
DESY 96-107, IEM-FT-96/133
hep-ph
null
These lectures provide a very basic introduction to different theoretical limits on the mass of Higgs scalars. Particular attention is devoted to the pure Standard Model and its Minimal Supersymmetric extension (MSSM). [Lectures presented at the XXIV ITEP Winter School, Snegiri (Russia), February 96]
[ { "created": "Thu, 13 Jun 1996 08:30:18 GMT", "version": "v1" } ]
2015-06-25
[ [ "Espinosa", "J. R.", "", "DESY" ] ]
These lectures provide a very basic introduction to different theoretical limits on the mass of Higgs scalars. Particular attention is devoted to the pure Standard Model and its Minimal Supersymmetric extension (MSSM). [Lectures presented at the XXIV ITEP Winter School, Snegiri (Russia), February 96]
hep-ph/0104023
Julien Serreau
Julien Serreau
Out-of-equilibrium phenomena in high energy nuclear collisions
PhD Thesis, 150 pages, 35 figures, using boldgreek.sty, in french
null
null
LPT-ORSAY 01/27
hep-ph hep-th nucl-th
null
In the first part we study the possibility that a Disoriented Chiral Condensate (DCC) forms when hot hadronic matter is quenched, using the linear sigma model. We formulate an original sampling strategy for the initial field configuration in order to get an estimate of the probability that a potentially observable co...
[ { "created": "Mon, 2 Apr 2001 20:14:59 GMT", "version": "v1" } ]
2007-05-23
[ [ "Serreau", "Julien", "" ] ]
In the first part we study the possibility that a Disoriented Chiral Condensate (DCC) forms when hot hadronic matter is quenched, using the linear sigma model. We formulate an original sampling strategy for the initial field configuration in order to get an estimate of the probability that a potentially observable cohe...
1312.6528
Prakash Mathews
Daniel de Florian, Maguni Mahakhud, Prakash Mathews, Javier Mazzitelli and V. Ravindran
Quark and gluon spin-2 form factors to two-loops in QCD
14 pages, LaTeX; references added, version to appear in JHEP
JHEP 02 (2014) 035
10.1007/JHEP02(2014)035
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present complete two-loop radiative corrections to the graviton-quark-antiquark form factor G^* \rightarrow q \overline q and graviton-gluon-gluon form factor G^* \rightarrow g g in SU(N) gauge theory with n_f light flavours using d-dimensional regularisation to all orders in \varepsilon=d-4. This is an important ...
[ { "created": "Mon, 23 Dec 2013 11:40:09 GMT", "version": "v1" }, { "created": "Wed, 12 Feb 2014 12:54:46 GMT", "version": "v2" } ]
2014-02-13
[ [ "de Florian", "Daniel", "" ], [ "Mahakhud", "Maguni", "" ], [ "Mathews", "Prakash", "" ], [ "Mazzitelli", "Javier", "" ], [ "Ravindran", "V.", "" ] ]
We present complete two-loop radiative corrections to the graviton-quark-antiquark form factor G^* \rightarrow q \overline q and graviton-gluon-gluon form factor G^* \rightarrow g g in SU(N) gauge theory with n_f light flavours using d-dimensional regularisation to all orders in \varepsilon=d-4. This is an important in...
1711.09058
Yu Jia
Dong Bai, Wen Chen, and Yu Jia
Quarkonium decay into photon plus graviton: a golden channel to discriminate General Relativity from Massive Gravity?
12 pages, 2 figures
null
null
null
hep-ph gr-qc hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
After the recent historical discovery of gravitational wave, it is curious to speculate upon the detection prospect of the quantum graviton in the terrestrial accelerator-based experiment. We carefully investigate the "golden" channels, $J/\psi(\Upsilon)\to\gamma+\text{graviton}$, which can be pursued at \textsf{BESI...
[ { "created": "Fri, 24 Nov 2017 17:44:36 GMT", "version": "v1" } ]
2017-11-27
[ [ "Bai", "Dong", "" ], [ "Chen", "Wen", "" ], [ "Jia", "Yu", "" ] ]
After the recent historical discovery of gravitational wave, it is curious to speculate upon the detection prospect of the quantum graviton in the terrestrial accelerator-based experiment. We carefully investigate the "golden" channels, $J/\psi(\Upsilon)\to\gamma+\text{graviton}$, which can be pursued at \textsf{BESIII...
1104.0585
Valentin V. Khoze
Matthew J. Dolan, David Grellscheid, Joerg Jaeckel, Valentin V. Khoze and Peter Richardson
New Constraints on Gauge Mediation and Beyond from LHC SUSY Searches at 7 TeV
20 pages, 7 figures, v2: reference added
null
10.1007/JHEP06(2011)095
IPPP/11/14; DCPT/11/28
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The first results from the LHC on jets plus missing energy provide powerful new data to test SUSY models. Initial theoretical interpretations of these data have concentrated on gravity mediation, usually the CMSSM and its variations. In this paper we confront a large class of gauge mediation models with these new dat...
[ { "created": "Mon, 4 Apr 2011 14:32:22 GMT", "version": "v1" }, { "created": "Thu, 28 Apr 2011 11:56:11 GMT", "version": "v2" } ]
2015-05-27
[ [ "Dolan", "Matthew J.", "" ], [ "Grellscheid", "David", "" ], [ "Jaeckel", "Joerg", "" ], [ "Khoze", "Valentin V.", "" ], [ "Richardson", "Peter", "" ] ]
The first results from the LHC on jets plus missing energy provide powerful new data to test SUSY models. Initial theoretical interpretations of these data have concentrated on gravity mediation, usually the CMSSM and its variations. In this paper we confront a large class of gauge mediation models with these new data....
2011.13551
Amit Dutta Banik
Shao-Long Chen, Amit Dutta Banik, Ze-Kun Liu
Common origin of radiative neutrino mass, dark matter and leptogenesis in scotogenic Georgi-Machacek model
version to appear in NPB
null
10.1016/j.nuclphysb.2021.115394
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore the phenomenology of the Georgi-Machacek model extended with two Higgs doublets and vector fermion doublets invariant under $SU(2)_L \times U(1)_Y\times \mathcal {Z}_4 \times \mathcal {Z}_2$. The $\mathcal {Z}_4$ symmetry is broken spontaneously while the imposed $\mathcal {Z}_2$ symmetry forbids triplet f...
[ { "created": "Fri, 27 Nov 2020 04:29:44 GMT", "version": "v1" }, { "created": "Sun, 3 Jan 2021 12:59:18 GMT", "version": "v2" }, { "created": "Tue, 13 Apr 2021 19:48:37 GMT", "version": "v3" } ]
2021-04-28
[ [ "Chen", "Shao-Long", "" ], [ "Banik", "Amit Dutta", "" ], [ "Liu", "Ze-Kun", "" ] ]
We explore the phenomenology of the Georgi-Machacek model extended with two Higgs doublets and vector fermion doublets invariant under $SU(2)_L \times U(1)_Y\times \mathcal {Z}_4 \times \mathcal {Z}_2$. The $\mathcal {Z}_4$ symmetry is broken spontaneously while the imposed $\mathcal {Z}_2$ symmetry forbids triplet fie...
1302.1482
Guennadi Volkov Germanovich
D.S. Baranov and G.G. Volkov
Neutrino On The Possible New Time Structure
40 pages 12 figures. Extended version of arXiv:1211.4708
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We continue to study the problems of discovering new temporal and spatial properties of neutrinos from the point of the possible multi-dimensional extension the D=(3+1)- special theory of relativity. It is neutrino that can connect our Universe with new types of the matter, the new Universe. The possible discovery wi...
[ { "created": "Sat, 2 Feb 2013 10:06:04 GMT", "version": "v1" } ]
2013-02-07
[ [ "Baranov", "D. S.", "" ], [ "Volkov", "G. G.", "" ] ]
We continue to study the problems of discovering new temporal and spatial properties of neutrinos from the point of the possible multi-dimensional extension the D=(3+1)- special theory of relativity. It is neutrino that can connect our Universe with new types of the matter, the new Universe. The possible discovery with...
1003.3930
Claudio Coriano
Roberta Armillis, Claudio Coriano, Luigi Delle Rose, Luigi Manni
The Trace Anomaly and the Gravitational Coupling of an Anomalous U(1)
30 pages, 3 figures
Int.J.Mod.Phys.A26:2405-2435,2011
10.1142/S0217751X11053407
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We extend a previous computation of the TJJ correlator, involving the energy-momentum tensor of an abelian gauge theory and two vector currents, to the case of mixed axial-vector/vector currents. The study is performed in analogy to the case of the $AVV$ vertex for the chiral anomaly. We derive the general structure ...
[ { "created": "Sat, 20 Mar 2010 14:04:08 GMT", "version": "v1" }, { "created": "Tue, 21 Dec 2010 23:47:15 GMT", "version": "v2" }, { "created": "Fri, 24 Dec 2010 11:37:42 GMT", "version": "v3" } ]
2015-03-13
[ [ "Armillis", "Roberta", "" ], [ "Coriano", "Claudio", "" ], [ "Rose", "Luigi Delle", "" ], [ "Manni", "Luigi", "" ] ]
We extend a previous computation of the TJJ correlator, involving the energy-momentum tensor of an abelian gauge theory and two vector currents, to the case of mixed axial-vector/vector currents. The study is performed in analogy to the case of the $AVV$ vertex for the chiral anomaly. We derive the general structure of...
hep-ph/9407406
Pene
R. Aleksan, A. Le Yaouanc, L. Oliver, O. P\`ene and J.-C. Raynal
Determination of the CP Violating Phase $\gamma$ by a Sum Over Common Decay Modes to $B_s$ and $\bar{B}_s$
22 pages, LPTHE Orsay 94/03, DAPNIA/SPP/94-23
Z.Phys.C67:251-260,1995
10.1007/BF01571286
null
hep-ph
null
To help the difficult determination of the angle $\gamma$ of the unitarity triangle, Aleksan, Dunietz and Kayser have proposed the modes of the type $K^-D^+_s$, common to $B_s$ and $\bar{B}_s$. We point out that it is possible to gain in statistics by a sum over all modes with ground state mesons in the final state, ...
[ { "created": "Sun, 31 Jul 1994 18:40:37 GMT", "version": "v1" } ]
2010-11-01
[ [ "Aleksan", "R.", "" ], [ "Yaouanc", "A. Le", "" ], [ "Oliver", "L.", "" ], [ "Pène", "O.", "" ], [ "Raynal", "J. -C.", "" ] ]
To help the difficult determination of the angle $\gamma$ of the unitarity triangle, Aleksan, Dunietz and Kayser have proposed the modes of the type $K^-D^+_s$, common to $B_s$ and $\bar{B}_s$. We point out that it is possible to gain in statistics by a sum over all modes with ground state mesons in the final state, i....
hep-ph/0003203
Igor Anikin
I.V. Anikin (JINR, Dubna), B. Pire (CPhT, Ecole Polytechnique, Palaiseau), O.V. Teryaev(CPhT, Ecole Polytechnique, Palaiseau & JINR, Dubna)
On the gauge invariance of the DVCS amplitude
5 pages, 1 figure, LaTeX; Types fixed, formula for asymmetry completed, one reference added
Phys.Rev.D62:071501,2000
10.1103/PhysRevD.62.071501
null
hep-ph
null
We analyze in detail the problem of gauge invariance of the deeply vitual Compton scattering (DVCS) amplitude. Using twist 3 one-gluon exchange diagram contributions and the QCD equations of motion, we derive the general gauge invariant expression of the DVCS amplitude on a (pseudo)scalar particle (pion, $He^4$). Sim...
[ { "created": "Tue, 21 Mar 2000 21:53:47 GMT", "version": "v1" }, { "created": "Mon, 10 Apr 2000 13:09:00 GMT", "version": "v2" } ]
2009-12-30
[ [ "Anikin", "I. V.", "", "JINR, Dubna" ], [ "Pire", "B.", "", "CPhT, Ecole Polytechnique,\n Palaiseau" ], [ "Teryaev", "O. V.", "", "CPhT, Ecole Polytechnique, Palaiseau & JINR, Dubna" ] ]
We analyze in detail the problem of gauge invariance of the deeply vitual Compton scattering (DVCS) amplitude. Using twist 3 one-gluon exchange diagram contributions and the QCD equations of motion, we derive the general gauge invariant expression of the DVCS amplitude on a (pseudo)scalar particle (pion, $He^4$). Simil...
2107.10268
Motoo Suzuki
Yuichiro Nakai, Matthew Reece, Motoo Suzuki
Supersymmetric Alignment Models for $(g-2)_{\mu}$
12 pages, 2 figures, published version
null
10.1007/JHEP10(2021)068
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Hierarchical masses of quarks and leptons are addressed by imposing horizontal symmetries. In supersymmetric Standard Models, the same symmetries play a role in suppressing flavor violating processes induced by supersymmetric particles. Combining the idea of spontaneous CP violation to control contributions to electr...
[ { "created": "Wed, 21 Jul 2021 18:00:03 GMT", "version": "v1" }, { "created": "Mon, 11 Oct 2021 11:03:43 GMT", "version": "v2" } ]
2021-10-27
[ [ "Nakai", "Yuichiro", "" ], [ "Reece", "Matthew", "" ], [ "Suzuki", "Motoo", "" ] ]
Hierarchical masses of quarks and leptons are addressed by imposing horizontal symmetries. In supersymmetric Standard Models, the same symmetries play a role in suppressing flavor violating processes induced by supersymmetric particles. Combining the idea of spontaneous CP violation to control contributions to electric...
1802.05236
Zahari Kassabov
Zahari Kassabov
PDF dependence on parameter fits from hadronic data
Presented at The Final HiggsTools Meeting, 11-15 September 2017, IPPP
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a discussion on the methods for extracting a given parameter from measurements of hadronic data, with particular focus on determinations of the strong coupling constant. We show that when the PDF dependency on the determination is adequately taken into account, the dispersion between the results from diffe...
[ { "created": "Wed, 14 Feb 2018 17:48:19 GMT", "version": "v1" } ]
2018-02-15
[ [ "Kassabov", "Zahari", "" ] ]
We present a discussion on the methods for extracting a given parameter from measurements of hadronic data, with particular focus on determinations of the strong coupling constant. We show that when the PDF dependency on the determination is adequately taken into account, the dispersion between the results from differe...
0912.5482
Andrea Romanino
Marco Nardecchia, Andrea Romanino, Robert Ziegler
General Aspects of Tree Level Gauge Mediation
37 pages, 2 figures
JHEP 1003:024,2010
10.1007/JHEP03(2010)024
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Tree level gauge mediation (TGM) may be considered as the simplest way to communicate supersymmetry breaking: through the tree level renormalizable exchange of heavy gauge messengers. We study its general structure, in particular the general form of tree level sfermion masses and of one loop, but enhanced, gaugino ma...
[ { "created": "Wed, 30 Dec 2009 15:45:26 GMT", "version": "v1" } ]
2010-05-12
[ [ "Nardecchia", "Marco", "" ], [ "Romanino", "Andrea", "" ], [ "Ziegler", "Robert", "" ] ]
Tree level gauge mediation (TGM) may be considered as the simplest way to communicate supersymmetry breaking: through the tree level renormalizable exchange of heavy gauge messengers. We study its general structure, in particular the general form of tree level sfermion masses and of one loop, but enhanced, gaugino mass...
1605.05327
Manuel Krauss
Manuel Ernst Krauss, Toby Opferkuch, Florian Staub, Martin Wolfgang Winkler
Soft Gamma Rays from Heavy WIMPs
8 pages, 8 figures; v2: focus on gamma ray excess, matches published version
Phys.Dark Univ. 14 (2016) 29-34
10.1016/j.dark.2016.08.004
CERN-TH-2016-118, Bonn-TH-2016-04
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose an explanation of the galactic center gamma ray excess by supersymmetric WIMPs as heavy as 500 GeV. The lightest neutralino annihilates into vector-like leptons or quarks which cascade decay through intermediate Higgs bosons. Due to the long decay chains, the gamma ray spectrum is much softer than naively ...
[ { "created": "Tue, 17 May 2016 20:00:02 GMT", "version": "v1" }, { "created": "Tue, 13 Sep 2016 06:53:46 GMT", "version": "v2" } ]
2016-09-14
[ [ "Krauss", "Manuel Ernst", "" ], [ "Opferkuch", "Toby", "" ], [ "Staub", "Florian", "" ], [ "Winkler", "Martin Wolfgang", "" ] ]
We propose an explanation of the galactic center gamma ray excess by supersymmetric WIMPs as heavy as 500 GeV. The lightest neutralino annihilates into vector-like leptons or quarks which cascade decay through intermediate Higgs bosons. Due to the long decay chains, the gamma ray spectrum is much softer than naively ex...
2309.06463
Anil Thapa
P. S. Bhupal Dev, Julian Heeck, Anil Thapa
Neutrino mass models at $\mu$TRISTAN
8 pages and references, 5 figures, matches published version
Eur. Phys. J. C 84, 148 (2024)
10.1140/epjc/s10052-024-12496-0
CETUP-2023-005
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
We study the prospects of probing neutrino mass models at the newly proposed antimuon collider $\mu$TRISTAN, involving $\mu^+e^-$ scattering at $\sqrt{s}= 346$ GeV and $\mu^+\mu^+$ scattering at $\sqrt{s}= 2$ TeV. We show that $\mu$TRISTAN is uniquely sensitive to leptophilic neutral and doubly-charged scalars natura...
[ { "created": "Tue, 12 Sep 2023 18:00:00 GMT", "version": "v1" }, { "created": "Mon, 12 Feb 2024 19:23:48 GMT", "version": "v2" } ]
2024-02-14
[ [ "Dev", "P. S. Bhupal", "" ], [ "Heeck", "Julian", "" ], [ "Thapa", "Anil", "" ] ]
We study the prospects of probing neutrino mass models at the newly proposed antimuon collider $\mu$TRISTAN, involving $\mu^+e^-$ scattering at $\sqrt{s}= 346$ GeV and $\mu^+\mu^+$ scattering at $\sqrt{s}= 2$ TeV. We show that $\mu$TRISTAN is uniquely sensitive to leptophilic neutral and doubly-charged scalars naturall...
hep-ph/9610511
null
Guido M\"uller
Renormalization of the meson-baryon SU(3) Lagrangian in chiral perturbation theory to order q^3
5 pages, Latex, Contribution to the Workshop ''Quark Confinement and the Hadron Spectrum II'', Como, Italy, June 26--29, 1996, to appear in the Proceedings, ed. Nora Brambilla, World Scientific
null
null
TK 96 30
hep-ph
null
We perform the complete regularization of all Green functions with a single incoming and outgoing baryon to order q^3 in the low energy expansion for the SU(3) meson-baryon system in chiral perturbation theory. The divergences can be extracted in a chiral invariant manner by making use of the heat kernel representati...
[ { "created": "Mon, 28 Oct 1996 19:14:27 GMT", "version": "v1" } ]
2007-05-23
[ [ "Müller", "Guido", "" ] ]
We perform the complete regularization of all Green functions with a single incoming and outgoing baryon to order q^3 in the low energy expansion for the SU(3) meson-baryon system in chiral perturbation theory. The divergences can be extracted in a chiral invariant manner by making use of the heat kernel representation...
1304.2584
Vaibhav Rawoot
Rohini M. Godbole, Anuradha Misra, Asmita Mukherjee, Vaibhav S. Rawoot
Transverse Single Spin Asymmetry in $e+p^\uparrow \to e+J/\psi +X $ and Transverse Momentum Dependent Evolution of the Sivers Function
12 pages, 6 figures. arXiv admin note: text overlap with arXiv:1201.1066
Phys. Rev. D 88, 014029 (2013)
10.1103/PhysRevD.88.014029
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We extend our analysis of transverse single spin asymmetry (SSA) in electroproduction of $J/\psi$ to include the effect of the scale evolution of the transverse momentum dependent (TMD) parton distribution functions and gluon Sivers function. We estimate SSA for JLab, HERMES, COMPASS, and eRHIC energies using the col...
[ { "created": "Tue, 9 Apr 2013 13:34:18 GMT", "version": "v1" }, { "created": "Wed, 8 May 2013 10:21:32 GMT", "version": "v2" }, { "created": "Mon, 29 Jul 2013 15:52:28 GMT", "version": "v3" } ]
2013-07-30
[ [ "Godbole", "Rohini M.", "" ], [ "Misra", "Anuradha", "" ], [ "Mukherjee", "Asmita", "" ], [ "Rawoot", "Vaibhav S.", "" ] ]
We extend our analysis of transverse single spin asymmetry (SSA) in electroproduction of $J/\psi$ to include the effect of the scale evolution of the transverse momentum dependent (TMD) parton distribution functions and gluon Sivers function. We estimate SSA for JLab, HERMES, COMPASS, and eRHIC energies using the color...
hep-ph/9612448
Rudolf Baier
R. Baier, M. Dirks and K. Redlich
Thermal Dileptons as a Possible Source of the Soft Dilepton Enhancement Measured in A-A Collisions at SPS Energies
9 pages LaTeX, 7 ps figures included, needs stwol.sty Invited talk presented by K. Redlich at the 28th International Conference on High Energy Physics, July 1996, Warszawa, Poland
null
null
null
hep-ph
null
The production of soft dileptons in a thermal mesonic medium is discussed in the context of recent CERN experimental data reported by the CERES Collaboration. We do not intend to give a general and critical review, but instead concentrate mainly on our approach, however, incorporating many of the recent attempts in t...
[ { "created": "Mon, 23 Dec 1996 10:44:43 GMT", "version": "v1" } ]
2016-09-06
[ [ "Baier", "R.", "" ], [ "Dirks", "M.", "" ], [ "Redlich", "K.", "" ] ]
The production of soft dileptons in a thermal mesonic medium is discussed in the context of recent CERN experimental data reported by the CERES Collaboration. We do not intend to give a general and critical review, but instead concentrate mainly on our approach, however, incorporating many of the recent attempts in the...
hep-ph/0609202
Xiaofeng Guo
Xiaofeng Guo, Jun Li
Coherent multiple scattering effect in DIS
4 pages, talk given at Hard Probe 2006 conference
Nucl.Phys.A783:587-590,2007
10.1016/j.nuclphysa.2006.11.121
null
hep-ph nucl-th
null
We present a QCD calculation of the coherent multiple scattering effect on single hadron production in semi-inclusive lepton-nucleus deep inelastic scattering (DIS). We show that the destructive interference of coherent multiple scattering leads to suppression in hadron productions. The suppression is similar to the ...
[ { "created": "Tue, 19 Sep 2006 21:14:43 GMT", "version": "v1" } ]
2008-11-26
[ [ "Guo", "Xiaofeng", "" ], [ "Li", "Jun", "" ] ]
We present a QCD calculation of the coherent multiple scattering effect on single hadron production in semi-inclusive lepton-nucleus deep inelastic scattering (DIS). We show that the destructive interference of coherent multiple scattering leads to suppression in hadron productions. The suppression is similar to the ex...
hep-ph/9802430
Afsar Abbas
Afsar Abbas, Lina Paria and Samar Abbas
The Deflation of SU(3)_c at High Temperatures
Revised Version, significant changes made in the manuscript, 8 pages latex file with two ps figure files
null
null
null
hep-ph astro-ph nucl-th
null
The ideas of "local" and "global" colour-singletness are not well understood within QCD. We use a group theoretical technique to project out the partition function for a system of quarks, antiquarks and gluons to a particular representation of the internal symmetry group $SU(3)_c$: colour-singlet, colour-octet and co...
[ { "created": "Thu, 26 Feb 1998 13:39:34 GMT", "version": "v1" }, { "created": "Mon, 1 Feb 1999 09:52:50 GMT", "version": "v2" } ]
2007-05-23
[ [ "Abbas", "Afsar", "" ], [ "Paria", "Lina", "" ], [ "Abbas", "Samar", "" ] ]
The ideas of "local" and "global" colour-singletness are not well understood within QCD. We use a group theoretical technique to project out the partition function for a system of quarks, antiquarks and gluons to a particular representation of the internal symmetry group $SU(3)_c$: colour-singlet, colour-octet and colo...
hep-ph/0006303
Robert Kaminski
R. Kaminski, L. Lesniak and B. Loiseau
Peculiarities in multichannel interaction amplitudes for meson-meson scattering and scalar meson spectroscopy
presented by R. Kaminski at the Meson 2000 Conference, Cracow, Poland, May 19-23, 2000; 5 pages including 2 figures, to appear in Acta Physica Polonica B
Acta Phys.Polon. B31 (2000) 2467-2470
null
null
hep-ph
null
Interactions in coupled channels pipi, KKbar and an effective 2pi2pi in scalar-isoscalar wave have been analysed. Influence of interchannel couplings on analytical structure of multichannel interaction amplitudes has been studied. Interplay of S-matrix zeroes and poles and their relation with parameters of scalar res...
[ { "created": "Tue, 27 Jun 2000 14:08:18 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kaminski", "R.", "" ], [ "Lesniak", "L.", "" ], [ "Loiseau", "B.", "" ] ]
Interactions in coupled channels pipi, KKbar and an effective 2pi2pi in scalar-isoscalar wave have been analysed. Influence of interchannel couplings on analytical structure of multichannel interaction amplitudes has been studied. Interplay of S-matrix zeroes and poles and their relation with parameters of scalar reson...
1610.04130
Piotr Lebiedowicz
Piotr Lebiedowicz, Otto Nachtmann and Antoni Szczurek
Exclusive production of two and four pions in proton-proton scattering
8 pages, 5 figures, talk presented by P. Lebiedowicz at the Low-x 2016 conference, Gy\"ongy\"os, Hungary, June 6-11, 2016. arXiv admin note: text overlap with arXiv:1606.09046
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider exclusive $pp \to pp \pi^{+} \pi^{-}$ and $pp \to pp \pi^{+} \pi^{-}\pi^{+} \pi^{-}$ reactions at high energies. The calculation is based on a tensor pomeron model and the amplitudes for the processes are formulated in an effective field-theoretic approach. In the case of $pp \to pp \pi^{+} \pi^{-}$ proce...
[ { "created": "Thu, 13 Oct 2016 15:32:56 GMT", "version": "v1" } ]
2016-10-14
[ [ "Lebiedowicz", "Piotr", "" ], [ "Nachtmann", "Otto", "" ], [ "Szczurek", "Antoni", "" ] ]
We consider exclusive $pp \to pp \pi^{+} \pi^{-}$ and $pp \to pp \pi^{+} \pi^{-}\pi^{+} \pi^{-}$ reactions at high energies. The calculation is based on a tensor pomeron model and the amplitudes for the processes are formulated in an effective field-theoretic approach. In the case of $pp \to pp \pi^{+} \pi^{-}$ process...
2404.04152
Greger Torgrimsson
Greger Torgrimsson
Quantum radiation reaction: Analytical approximations and obtaining the spectrum from moments
23 pages, 9 figures
null
null
null
hep-ph hep-th physics.plasm-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We derive analytical $\chi\ll1$ approximations for spin-dependent quantum radiation reaction for locally constant and locally monochromatic fields. We show how to factor out fast spin oscillations and obtain the degree of polarization in the plane orthogonal to the magnetic field from the Frobenius norm of the Muelle...
[ { "created": "Fri, 5 Apr 2024 14:56:47 GMT", "version": "v1" } ]
2024-04-08
[ [ "Torgrimsson", "Greger", "" ] ]
We derive analytical $\chi\ll1$ approximations for spin-dependent quantum radiation reaction for locally constant and locally monochromatic fields. We show how to factor out fast spin oscillations and obtain the degree of polarization in the plane orthogonal to the magnetic field from the Frobenius norm of the Mueller ...
hep-ph/0409173
Satoshi Mishima
Satoshi Mishima
Supersymmetric Contributions to the B -> phi K Decays in the PQCD Approach
4 pages, 2 figures, to appear in the proceedings of the 12th International Conference on Supersymmetry and Unification of Fundamental Interactions (SUSY 2004), Tsukuba, Japan, June 17-23, 2004
null
null
null
hep-ph
null
We study the effects of supersymmetric contribution on both the B_d -> phi K^0 and B^\pm -> phi K^\pm modes using the perturbative QCD approach. We estimate the deviation of mixing-induced and direct CP asymmetries and discuss the strong-phase dependence of them.
[ { "created": "Wed, 15 Sep 2004 10:57:01 GMT", "version": "v1" } ]
2007-05-23
[ [ "Mishima", "Satoshi", "" ] ]
We study the effects of supersymmetric contribution on both the B_d -> phi K^0 and B^\pm -> phi K^\pm modes using the perturbative QCD approach. We estimate the deviation of mixing-induced and direct CP asymmetries and discuss the strong-phase dependence of them.
1906.10706
Melissa van Beekveld
Melissa van Beekveld, Sascha Caron, Roberto Ruiz de Austri
The current status of fine-tuning in supersymmetry
null
null
10.1007/JHEP01(2020)147
Nikhef/2019-023
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, we minimize and compare two different fine-tuning measures in four high-scale supersymmetric models that are embedded in the MSSM. In addition, we determine the impact of current and future dark matter direct detection and collider experiments on the fine-tuning. We then compare the low-scale electrowe...
[ { "created": "Tue, 25 Jun 2019 18:00:22 GMT", "version": "v1" } ]
2020-02-19
[ [ "van Beekveld", "Melissa", "" ], [ "Caron", "Sascha", "" ], [ "de Austri", "Roberto Ruiz", "" ] ]
In this paper, we minimize and compare two different fine-tuning measures in four high-scale supersymmetric models that are embedded in the MSSM. In addition, we determine the impact of current and future dark matter direct detection and collider experiments on the fine-tuning. We then compare the low-scale electroweak...
hep-ph/0303233
Peter Uwer
J.H.K\"uhn, C.Sturm, and P.Uwer
QCD corrections to single top quark production in electron photon interactions
null
Eur.Phys.J.C30:169-182,2003
10.1140/epjc/s2003-01259-4
TTP03-11
hep-ph
null
Single top quark production in electron photon interactions provides a clean environment for the measurement of the Cabbibo-Kobayashi-Maskawa matrix element Vtb. Aiming an experimental precision at the percent level the knowledge of radiative corrections is important. In this paper we present results for the radiativ...
[ { "created": "Thu, 27 Mar 2003 17:44:40 GMT", "version": "v1" } ]
2008-11-26
[ [ "Kühn", "J. H.", "" ], [ "Sturm", "C.", "" ], [ "Uwer", "P.", "" ] ]
Single top quark production in electron photon interactions provides a clean environment for the measurement of the Cabbibo-Kobayashi-Maskawa matrix element Vtb. Aiming an experimental precision at the percent level the knowledge of radiative corrections is important. In this paper we present results for the radiative ...
1312.0837
Christian Schwinn
Martin Beneke, Pietro Falgari, Jan Piclum, Christian Schwinn, Christopher Wever
Higher-order soft and Coulomb corrections to squark and gluino production at the LHC
8 pages, PoS class included. Contribution to the Proceedings of the 11th International Symposium on Radiative Corrections (Applications of Quantum Field Theory to Phenomenology) (RADCOR 2013), 22-27 September 2013, Lumley Castle Hotel, Durham, UK
null
null
FR-PHENO-2013-015, SFB/CPP-13-104, TTK-13-25, TUM-HEP-913/13
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present predictions for the total cross sections for pair production of squarks and gluinos at the LHC including a combined NNLL resummation of soft and Coulomb gluon effects. The NNLL corrections can be up to 25% relative to previous NLL results and reduce the theoretical uncertainties to the 10% level.
[ { "created": "Tue, 3 Dec 2013 14:38:23 GMT", "version": "v1" } ]
2013-12-04
[ [ "Beneke", "Martin", "" ], [ "Falgari", "Pietro", "" ], [ "Piclum", "Jan", "" ], [ "Schwinn", "Christian", "" ], [ "Wever", "Christopher", "" ] ]
We present predictions for the total cross sections for pair production of squarks and gluinos at the LHC including a combined NNLL resummation of soft and Coulomb gluon effects. The NNLL corrections can be up to 25% relative to previous NLL results and reduce the theoretical uncertainties to the 10% level.
hep-ph/9708461
A. A. Pivovarov
A.A. Pivovarov
Analytical continuation and resummed perturbation theory
9 pages, 2 tables, Latex
Nucl.Phys.Proc.Suppl. 64 (1998) 339-343
10.1016/S0920-5632(97)01085-2
INR-0952/97
hep-ph
null
A pattern of partial resummation of perturbation theory series inspired by analytical continuation is discussed for some physical observables.
[ { "created": "Tue, 26 Aug 1997 09:29:39 GMT", "version": "v1" } ]
2009-10-30
[ [ "Pivovarov", "A. A.", "" ] ]
A pattern of partial resummation of perturbation theory series inspired by analytical continuation is discussed for some physical observables.
hep-ph/0605124
Adrian Palcu
Adrian Palcu
Neutrino Mass Squared Differences in the Exact Solution of a 3-3-1 Gauge Model without Exotic Electric Charges
10 pages, no figures
Mod.Phys.Lett. A21 (2006) 2027-2042
10.1142/S021773230602144X
null
hep-ph
null
The mass splittings for the Majorana neutrinos in the exact solution of a particular 3-3-1 gauge model are computed here in detail. Since both $\sin^{2}\theta_{13}\simeq0$ and the mass splittings ratio $r_{\Delta}\simeq0.033$ are taken into account, the analytical calculations seem to predict an inverted mass hierarc...
[ { "created": "Thu, 11 May 2006 06:36:08 GMT", "version": "v1" } ]
2009-08-01
[ [ "Palcu", "Adrian", "" ] ]
The mass splittings for the Majorana neutrinos in the exact solution of a particular 3-3-1 gauge model are computed here in detail. Since both $\sin^{2}\theta_{13}\simeq0$ and the mass splittings ratio $r_{\Delta}\simeq0.033$ are taken into account, the analytical calculations seem to predict an inverted mass hierarchy...
2012.08192
Gael Alguero
Ga\"el Alguero, Jan Heisig, Charanjit K. Khosa, Sabine Kraml, Suchita Kulkarni, Andre Lessa, Philipp Neuhuber, Humberto Reyes-Gonz\'alez, Wolfgang Waltenberger, Alicia Wongel
New developments in SModelS
16 pages, 7 figures, Contribution to "Tools for High Energy Physics and Cosmology" (TOOLS2020), 2-6 Nov. 2020, IP2I Lyon, France
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
SModelS is an automatized tool enabling the fast interpretation of simplified model results from the LHC within any model of new physics respecting a $\mathbb{Z}_2$ symmetry. In this contribution, we report on two important updates of SModelS during 2020: the extension of the SModelS' database with 13 ATLAS and 10 CM...
[ { "created": "Tue, 15 Dec 2020 10:19:49 GMT", "version": "v1" } ]
2020-12-16
[ [ "Alguero", "Gaël", "" ], [ "Heisig", "Jan", "" ], [ "Khosa", "Charanjit K.", "" ], [ "Kraml", "Sabine", "" ], [ "Kulkarni", "Suchita", "" ], [ "Lessa", "Andre", "" ], [ "Neuhuber", "Philipp", "" ], [ ...
SModelS is an automatized tool enabling the fast interpretation of simplified model results from the LHC within any model of new physics respecting a $\mathbb{Z}_2$ symmetry. In this contribution, we report on two important updates of SModelS during 2020: the extension of the SModelS' database with 13 ATLAS and 10 CMS ...
1502.04629
Kimberley Keri Vos
W.G. Dekens and K.K. Vos
T violation in radiative $\beta$ decay and electric dipole moments
11 pages, 2 figures
Phys. Lett. B 751, 500 (2015)
10.1016/j.physletb.2015.10.084
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In radiative $\beta$ decay, $T$ violation can be studied through a spin-independent $T$-odd correlation. We consider contributions to this correlation by beyond the standard model (BSM) sources of $T$-violation, arising above the electroweak scale. At the same time such sources, parametrized by dimension-6 operators,...
[ { "created": "Mon, 16 Feb 2015 17:08:38 GMT", "version": "v1" } ]
2015-11-17
[ [ "Dekens", "W. G.", "" ], [ "Vos", "K. K.", "" ] ]
In radiative $\beta$ decay, $T$ violation can be studied through a spin-independent $T$-odd correlation. We consider contributions to this correlation by beyond the standard model (BSM) sources of $T$-violation, arising above the electroweak scale. At the same time such sources, parametrized by dimension-6 operators, c...
hep-ph/9707331
Jaewan Kim
Jaewan Kim, Jorge L. Lopez, D.V. Nanopoulos, Raghavan Rangarajan, and A. Zichichi
Light-Gravitino Production at Hadron Colliders
25 pages, including 8 figures. Typeset in LaTex2e. Replaced with corrected figures, and some minor rewrites
Phys.Rev.D57:373-382,1998
10.1103/PhysRevD.57.373
ACT-11/97;CERN-TH/97-120;CTP-TAMU-30/97;DOE/ER/40717-44
hep-ph
null
We consider the production of gravitinos ($\widetilde G$) in association with gluinos ($\tilde g$) or squarks ($\tilde q$) at hadron colliders, including the three main sub-processes: $q \bar q -> \tilde g\widetilde G$, $qg -> \tilde q\widetilde G$, and $gg -> \tilde g\widetilde G$. These channels become enhanced to ...
[ { "created": "Fri, 11 Jul 1997 22:37:35 GMT", "version": "v1" }, { "created": "Sat, 12 Jul 1997 09:38:42 GMT", "version": "v2" } ]
2009-08-25
[ [ "Kim", "Jaewan", "" ], [ "Lopez", "Jorge L.", "" ], [ "Nanopoulos", "D. V.", "" ], [ "Rangarajan", "Raghavan", "" ], [ "Zichichi", "A.", "" ] ]
We consider the production of gravitinos ($\widetilde G$) in association with gluinos ($\tilde g$) or squarks ($\tilde q$) at hadron colliders, including the three main sub-processes: $q \bar q -> \tilde g\widetilde G$, $qg -> \tilde q\widetilde G$, and $gg -> \tilde g\widetilde G$. These channels become enhanced to th...
hep-ph/0107071
Peter Richardson
G. Corcella, I.G. Knowles, G. Marchesini, S. Moretti, K. Odagiri, P. Richardson, M.H. Seymour, B.R. Webber
HERWIG 6.3 Release Note
10 pages, program available at http://hepwww.rl.ac.uk/theory/seymour/herwig/ Corrected PDF nomenclature
null
null
Cavendish-HEP-01/08, CERN-TH/2001-173, DAMTP-2001-61
hep-ph hep-ex
null
A new release of the Monte Carlo program HERWIG (version 6.3) is now available. The main new features are new (MRST) built-in parton distribution functions, more SM gauge boson production processes, 2 to 3 MSSM Higgs production processes, an option to handle negative event weights, and an interface to the CIRCE beams...
[ { "created": "Fri, 6 Jul 2001 17:07:23 GMT", "version": "v1" }, { "created": "Mon, 9 Jul 2001 09:52:57 GMT", "version": "v2" } ]
2007-05-23
[ [ "Corcella", "G.", "" ], [ "Knowles", "I. G.", "" ], [ "Marchesini", "G.", "" ], [ "Moretti", "S.", "" ], [ "Odagiri", "K.", "" ], [ "Richardson", "P.", "" ], [ "Seymour", "M. H.", "" ], [ "Webber", ...
A new release of the Monte Carlo program HERWIG (version 6.3) is now available. The main new features are new (MRST) built-in parton distribution functions, more SM gauge boson production processes, 2 to 3 MSSM Higgs production processes, an option to handle negative event weights, and an interface to the CIRCE beamstr...
hep-ph/0609304
Raghavendra Srikanth
Biswarup Mukhopadhyaya, Soumitra SenGupta and Raghavendra Srikanth
Supergravity can reconcile dark matter with lepton number violating neutrino masses
8 pages, significant changes in the conceptual ideas and presentation of the paper, minor chages in the title and abstract, added few references. This is to appear in Physical Review D
Phys.Rev.D76:075001,2007
10.1103/PhysRevD.76.075001
null
hep-ph
null
Supersymmetry offers a cold dark matter candidate, provided that lepton number is {\em not violated by an odd number of units}. On the other hand, lepton number violation by even (two) units gives us an attractive mechanism of neutrino mass generation. Here we offer an explanation of this, in a supergravity framework...
[ { "created": "Fri, 29 Sep 2006 09:06:20 GMT", "version": "v1" }, { "created": "Fri, 24 Aug 2007 13:49:43 GMT", "version": "v2" } ]
2008-11-26
[ [ "Mukhopadhyaya", "Biswarup", "" ], [ "SenGupta", "Soumitra", "" ], [ "Srikanth", "Raghavendra", "" ] ]
Supersymmetry offers a cold dark matter candidate, provided that lepton number is {\em not violated by an odd number of units}. On the other hand, lepton number violation by even (two) units gives us an attractive mechanism of neutrino mass generation. Here we offer an explanation of this, in a supergravity framework u...
1112.5317
Rajiv V. Gavai
Rajiv V. Gavai
QCD Critical Point: Synergy of Lattice & Experiments
Proceedings of Strangeness in Quark Matter, Krakow, September 18-24, 2011, 8 pages,to appear in Acta Physica Polonica B
null
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The freeze-out curve, which describes a vast amount of precise experimental data in heavy ion collisions, provides a relation between the colliding energy and the thermodynamical parameters of the fireball. The variance, skew and kurtosis of the event distribution of baryon number are studied at several energies of i...
[ { "created": "Thu, 22 Dec 2011 14:00:36 GMT", "version": "v1" } ]
2011-12-23
[ [ "Gavai", "Rajiv V.", "" ] ]
The freeze-out curve, which describes a vast amount of precise experimental data in heavy ion collisions, provides a relation between the colliding energy and the thermodynamical parameters of the fireball. The variance, skew and kurtosis of the event distribution of baryon number are studied at several energies of int...
hep-ph/9408320
null
Marco Aurelio Diaz
Renormalizing Coupled Scalars with a Momentum Dependent Mixing Angle in the MSSM
8 pages, plain tex, 2 figures not included, VAND-TH-94-19
null
null
null
hep-ph
null
The renormalization of a system of coupled scalars fields is analyzed. By introducing a momentum dependent mixing angle we diagonalize the inverse propagator matrix at any momentum $p^2$. The zeros of the inverse propagator matrix, \ie, the physical masses, are then calculated keeping the full momentum dependence of ...
[ { "created": "Thu, 18 Aug 1994 22:52:39 GMT", "version": "v1" } ]
2007-05-23
[ [ "Diaz", "Marco Aurelio", "" ] ]
The renormalization of a system of coupled scalars fields is analyzed. By introducing a momentum dependent mixing angle we diagonalize the inverse propagator matrix at any momentum $p^2$. The zeros of the inverse propagator matrix, \ie, the physical masses, are then calculated keeping the full momentum dependence of th...
2403.17492
Wei Wang
Xue-Ying Han, Jun Hua, Xiangdong Ji, Cai-Dian L\"u, Wei Wang, Ji Xu, Qi-An Zhang, Shuai Zhao
A new method to access heavy meson lightcone distribution amplitudes from first-principle
6.5 +1.5 pages, 4 +2 figures
null
null
null
hep-ph hep-ex hep-lat
http://creativecommons.org/licenses/by/4.0/
We present a method to compute lightcone distribution amplitudes (LCDAs) of heavy meson within heavy quark effective theory (HQET). Our method utilizes quasi distribution amplitudes (quasi-DAs) with a large momentum component $P^z$. We point out that by sequentially integrating out $P^z$ and $m_H$, one can disentangl...
[ { "created": "Tue, 26 Mar 2024 08:47:25 GMT", "version": "v1" } ]
2024-03-27
[ [ "Han", "Xue-Ying", "" ], [ "Hua", "Jun", "" ], [ "Ji", "Xiangdong", "" ], [ "Lü", "Cai-Dian", "" ], [ "Wang", "Wei", "" ], [ "Xu", "Ji", "" ], [ "Zhang", "Qi-An", "" ], [ "Zhao", "Shuai", ""...
We present a method to compute lightcone distribution amplitudes (LCDAs) of heavy meson within heavy quark effective theory (HQET). Our method utilizes quasi distribution amplitudes (quasi-DAs) with a large momentum component $P^z$. We point out that by sequentially integrating out $P^z$ and $m_H$, one can disentangle ...
2007.06046
Alfredo Valcarce
H. Garcilazo, A. Valcarce
Hidden and open heavy-flavor hadronic states
Paper commissioned to Prof. H. Garcilazo for the special issue "New Trends in Hadron Physics: a Few-Body Perspective" of Few Body Systems. 20 pages, 13 figures
Few-Body Systems 61, 24 (2020)
10.1007/s00601-020-01557-1
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the stability of hidden and open heavy-flavor hadronic states made of either two or three mesons. References are made in passing to studies regarding two and three-body systems containing baryons. We perform a comparative study analyzing the results in terms of quark and hadron degrees of freedom. Compact ...
[ { "created": "Sun, 12 Jul 2020 17:28:28 GMT", "version": "v1" } ]
2020-07-14
[ [ "Garcilazo", "H.", "" ], [ "Valcarce", "A.", "" ] ]
We discuss the stability of hidden and open heavy-flavor hadronic states made of either two or three mesons. References are made in passing to studies regarding two and three-body systems containing baryons. We perform a comparative study analyzing the results in terms of quark and hadron degrees of freedom. Compact an...
2012.00454
Bing-Dong Wan
Bing-Dong Wan and Cong-Feng Qiao
Gluonic Tetracharm Configuration of $X(6900)$
14 pages, 4 figures, published in PLB
null
10.1016/j.physletb.2021.136339
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Recently, a new hadronic structure at around $6.9$ GeV was observed in an LHCb experiment. From its limited yet known decay mode, one could still determine that it contains at least four charm quarks and hence belongs to the category of exotic state. This finding indicates for the first time the tetracharm exotic sta...
[ { "created": "Tue, 1 Dec 2020 13:02:57 GMT", "version": "v1" }, { "created": "Wed, 12 May 2021 07:25:52 GMT", "version": "v2" } ]
2021-05-13
[ [ "Wan", "Bing-Dong", "" ], [ "Qiao", "Cong-Feng", "" ] ]
Recently, a new hadronic structure at around $6.9$ GeV was observed in an LHCb experiment. From its limited yet known decay mode, one could still determine that it contains at least four charm quarks and hence belongs to the category of exotic state. This finding indicates for the first time the tetracharm exotic state...
hep-ph/9408285
Berndt Mueller
Berndt Mueller
Colored Chaos
10 pages (7 figures, plenum.sty file, appended as uuencoded file), DUKE-TH-94-72
null
null
null
hep-ph nucl-th
null
I review recent progress in our understanding of the basis of statistical models for hadronic reactions and of the mechanisms of thermalization in nonabelian gauge theories. (Invited talk given at the NATO Advanced Research Workshop on Hot Hadronic Matter: Theory and Experiment, Divonne-le-Bains, June 1994) **Note: T...
[ { "created": "Sun, 14 Aug 1994 21:35:55 GMT", "version": "v1" } ]
2009-09-25
[ [ "Mueller", "Berndt", "" ] ]
I review recent progress in our understanding of the basis of statistical models for hadronic reactions and of the mechanisms of thermalization in nonabelian gauge theories. (Invited talk given at the NATO Advanced Research Workshop on Hot Hadronic Matter: Theory and Experiment, Divonne-le-Bains, June 1994) **Note: The...
hep-ph/0102256
Hou Defu
M.E. Carrington, Hou Defu, and R. Kobes
Nonlinear Response from Transport Theory and Quantum Field Theory at Finite Temperature
Revtex, 25 pages with 7 figures
Phys.Rev. D64 (2001) 025001
10.1103/PhysRevD.64.025001
null
hep-ph
null
We study nonlinear response in weakly coupled hot $\phi^4$ theory. We obtain an expression for a quadratic shear viscous response coefficient using two different formalisms: transport theory and response theory. The transport theory calculation is carried out by assuming a local equilibrium form for the distribution ...
[ { "created": "Tue, 20 Feb 2001 21:16:42 GMT", "version": "v1" } ]
2009-11-07
[ [ "Carrington", "M. E.", "" ], [ "Defu", "Hou", "" ], [ "Kobes", "R.", "" ] ]
We study nonlinear response in weakly coupled hot $\phi^4$ theory. We obtain an expression for a quadratic shear viscous response coefficient using two different formalisms: transport theory and response theory. The transport theory calculation is carried out by assuming a local equilibrium form for the distribution fu...
hep-ph/9606221
Nobuchika Okada
Nobuchika Okada
Neutrino Flavor Mixing in the `Doublet-Singlet Oscillation' Model
10 pages, uses REVTEX macro
null
null
TMUP-HEL-9607
hep-ph
null
Recently, it was pointed out that the solar and atmospheric neutrino deficits can be explained by oscillations between electroweak doublet and singlet neutrinos in the model of Majorana neutrinos. However, since the model includes no flavor mixing, it cannot explain the recent LSND result. We extend the model to incl...
[ { "created": "Tue, 4 Jun 1996 11:37:49 GMT", "version": "v1" } ]
2007-05-23
[ [ "Okada", "Nobuchika", "" ] ]
Recently, it was pointed out that the solar and atmospheric neutrino deficits can be explained by oscillations between electroweak doublet and singlet neutrinos in the model of Majorana neutrinos. However, since the model includes no flavor mixing, it cannot explain the recent LSND result. We extend the model to includ...
1903.10638
Fu-Sheng Yu
Hsiang-nan Li, Cai-Dian L\"u, Fu-Sheng Yu
Implications on the first observation of charm CPV at LHCb
10 pages
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Very recently, the LHCb Collaboration observed the $CP$ violation (CPV) in the charm sector for the first time, with $\Delta A_{CP}^{\rm dir}\equiv A_{CP}(D^0\to K^+K^-)-A_{CP}(D^0\to \pi^+\pi^-)=(-1.54\pm0.29)\times10^{-3}$. This result is consistent with our prediction of $\Delta A_{CP}^{\rm SM}=(-0.57\sim -1.87)\t...
[ { "created": "Tue, 26 Mar 2019 00:14:39 GMT", "version": "v1" } ]
2019-03-27
[ [ "Li", "Hsiang-nan", "" ], [ "Lü", "Cai-Dian", "" ], [ "Yu", "Fu-Sheng", "" ] ]
Very recently, the LHCb Collaboration observed the $CP$ violation (CPV) in the charm sector for the first time, with $\Delta A_{CP}^{\rm dir}\equiv A_{CP}(D^0\to K^+K^-)-A_{CP}(D^0\to \pi^+\pi^-)=(-1.54\pm0.29)\times10^{-3}$. This result is consistent with our prediction of $\Delta A_{CP}^{\rm SM}=(-0.57\sim -1.87)\tim...
0707.1187
Takeo Matsushima
Takeo Matsushima
Composite Model and CP Violation
53 pages, 4 figures
null
null
null
hep-ph
null
A fermion-boson-type Composite Model is proposed. Elementary fields are only one kind of spin-1/2 and spin-0 {\bf preon}. Both are in the global supersymmetric pair with the common electric charge of e/6 and belong to the fundamental representations of (3, 2, 2) under the spontaneously unbroken SU(3)_C\otimes{SU(2)...
[ { "created": "Mon, 9 Jul 2007 07:06:41 GMT", "version": "v1" } ]
2007-07-10
[ [ "Matsushima", "Takeo", "" ] ]
A fermion-boson-type Composite Model is proposed. Elementary fields are only one kind of spin-1/2 and spin-0 {\bf preon}. Both are in the global supersymmetric pair with the common electric charge of e/6 and belong to the fundamental representations of (3, 2, 2) under the spontaneously unbroken SU(3)_C\otimes{SU(2)}_L^...
1606.05799
Pran Nath
Tarek Ibrahim, Pran Nath and Anas Zorik
The Higgs boson mass constraint and the CP even-CP odd Higgs boson mixing in an MSSM extension
35 pages, 10 figures. Accepted for publication in Physical Review D
null
10.1103/PhysRevD.94.035029
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
One loop contributions to the CP even-CP odd Higgs boson mixings arising from contributions due to exchange of a vectorlike multiplet are computed under the Higgs boson mass constraint. The vectorlike multiplet consists of a fourth generation of quarks and a mirror generation. This sector brings in new CP phases whic...
[ { "created": "Sat, 18 Jun 2016 20:00:01 GMT", "version": "v1" }, { "created": "Wed, 10 Aug 2016 15:24:56 GMT", "version": "v2" } ]
2016-09-21
[ [ "Ibrahim", "Tarek", "" ], [ "Nath", "Pran", "" ], [ "Zorik", "Anas", "" ] ]
One loop contributions to the CP even-CP odd Higgs boson mixings arising from contributions due to exchange of a vectorlike multiplet are computed under the Higgs boson mass constraint. The vectorlike multiplet consists of a fourth generation of quarks and a mirror generation. This sector brings in new CP phases which ...
hep-ph/9407304
Herbert Weigel
H. Weigel, U. Z\"uckert, R. Alkofer, and H. Reinhardt
On the analytic properties of chiral solitons in the presence of the $\omega$--meson
UNITU-THEP-13/1994, 34 LaTeX pages, 5 figures appended as postscript file
Nucl.Phys.A585:513-553,1995
10.1016/0375-9474(94)00625-W
null
hep-ph
null
A thorough study is performed of the analytical properties of the fermion determinant for the case that the time components of (axial) vector fields do not vanish. For this purpose the non--Hermitian Euclidean Dirac Hamiltonian is generalized to the whole complex plane. The Laurent series are proven to reduce to Tayl...
[ { "created": "Fri, 15 Jul 1994 08:28:11 GMT", "version": "v1" } ]
2009-09-25
[ [ "Weigel", "H.", "" ], [ "Zückert", "U.", "" ], [ "Alkofer", "R.", "" ], [ "Reinhardt", "H.", "" ] ]
A thorough study is performed of the analytical properties of the fermion determinant for the case that the time components of (axial) vector fields do not vanish. For this purpose the non--Hermitian Euclidean Dirac Hamiltonian is generalized to the whole complex plane. The Laurent series are proven to reduce to Taylor...
1302.7012
Samuel Wallon
B. Duclou\'e, L. Szymanowski, S. Wallon
Confronting Mueller-Navelet jets in NLL BFKL with LHC experiments at 7 TeV
30 pages, 25 figures
null
10.1007/JHEP05(2013)096
LPT-Orsay-13-18
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
More than 25 years ago, Mueller Navelet jets were proposed as a decisive test of BFKL dynamics at hadron colliders. We here study this process at NLL BFKL accuracy, taking into account NLL corrections to the Green's function and to the jet vertices. We present detailed predictions for various observables that can be ...
[ { "created": "Wed, 27 Feb 2013 21:49:42 GMT", "version": "v1" } ]
2015-06-15
[ [ "Ducloué", "B.", "" ], [ "Szymanowski", "L.", "" ], [ "Wallon", "S.", "" ] ]
More than 25 years ago, Mueller Navelet jets were proposed as a decisive test of BFKL dynamics at hadron colliders. We here study this process at NLL BFKL accuracy, taking into account NLL corrections to the Green's function and to the jet vertices. We present detailed predictions for various observables that can be me...
1202.2205
Yibo Yang
Yi-Bo Yang, Ying Chen, Gang Li, and Keh-Fei Liu
Is $1^-+$ Meson a Hybrid?
17 pages, 16 figures
Phys.Rev. D86 (2012) 094511
10.1103/PhysRevD.86.094511
null
hep-ph hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the vacuum to meson matrix elements of the dimension-4 operator $\bar{\psi}\gamma_4\nblr_i \psi$ and dimension-5 operator $\bar{\psi}\eps\gamma_j\psi B_k$ of the $1^{-+}$ meson on the lattice and compare them to the corresponding matrix elements of the ordinary mesons to discern if it is a hybrid. For th...
[ { "created": "Fri, 10 Feb 2012 08:08:13 GMT", "version": "v1" }, { "created": "Sun, 19 Aug 2012 07:02:42 GMT", "version": "v2" }, { "created": "Fri, 12 Oct 2012 01:17:10 GMT", "version": "v3" }, { "created": "Mon, 14 Jan 2013 10:21:09 GMT", "version": "v4" } ]
2013-05-30
[ [ "Yang", "Yi-Bo", "" ], [ "Chen", "Ying", "" ], [ "Li", "Gang", "" ], [ "Liu", "Keh-Fei", "" ] ]
We calculate the vacuum to meson matrix elements of the dimension-4 operator $\bar{\psi}\gamma_4\nblr_i \psi$ and dimension-5 operator $\bar{\psi}\eps\gamma_j\psi B_k$ of the $1^{-+}$ meson on the lattice and compare them to the corresponding matrix elements of the ordinary mesons to discern if it is a hybrid. For the ...
1112.0915
Bozek
Piotr Bozek
Collective flow in p-Pb and d-Pb collisions at TeV energies
null
Phys. Rev. C 85, 014911 (2012)
10.1103/PhysRevC.85.014911
null
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We apply the hydrodynamic model for the dynamics of matter created in p-Pb collisions at 4.4TeV and d-Pb collisions at 3.11TeV. The fluctuating initial conditions are calculated in the Glauber Monte-Carlo model for several centrality classes. The expansion is performed event by event in 3+1-dimensional viscous hydrod...
[ { "created": "Mon, 5 Dec 2011 13:05:04 GMT", "version": "v1" }, { "created": "Sat, 28 Jan 2012 16:33:10 GMT", "version": "v2" } ]
2012-02-01
[ [ "Bozek", "Piotr", "" ] ]
We apply the hydrodynamic model for the dynamics of matter created in p-Pb collisions at 4.4TeV and d-Pb collisions at 3.11TeV. The fluctuating initial conditions are calculated in the Glauber Monte-Carlo model for several centrality classes. The expansion is performed event by event in 3+1-dimensional viscous hydrodyn...
2202.08529
Xingwei He
Xing-Wei He, Hua-Rong Wei, Bi-Hai Honga, Hong-Yu Wu, Wei-Ting Zhu, Feng-Min Wu and Fu-Hu Liu
Centrality-dependent chemical potentials of light hadrons and quarks based on transverse momentum spectra and particle yield ratios in Au-Au collisions
26 pages,11 figures. arXiv admin note: substantial text overlap with arXiv:2005.12598
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We describe the transverse momentum spectra of $\pi^\pm$, $K^\pm$, $p$, and $\bar{p}$ produced in different centralities gold-gold (Au-Au) collisions at different collision energies range from 7.7 to 62.4 GeV by a two-component Erlang distribution. The fitting results are consistent with the experimental data, and th...
[ { "created": "Thu, 17 Feb 2022 09:16:20 GMT", "version": "v1" } ]
2022-02-18
[ [ "He", "Xing-Wei", "" ], [ "Wei", "Hua-Rong", "" ], [ "Honga", "Bi-Hai", "" ], [ "Wu", "Hong-Yu", "" ], [ "Zhu", "Wei-Ting", "" ], [ "Wu", "Feng-Min", "" ], [ "Liu", "Fu-Hu", "" ] ]
We describe the transverse momentum spectra of $\pi^\pm$, $K^\pm$, $p$, and $\bar{p}$ produced in different centralities gold-gold (Au-Au) collisions at different collision energies range from 7.7 to 62.4 GeV by a two-component Erlang distribution. The fitting results are consistent with the experimental data, and the ...
1105.6035
M. V. Libanov
M. Libanov and F.-S. Ling
Flavour puzzle or Why neutrinos are different?
46th Rencontres de Moriond, EW Interactions and Unified Theories, La Thuile, March 13-20, 2011
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a short review of a 6-dimensional model where a flavour puzzle of the Standard Model fermions finds an elegant solution. The mechanism is based on an idea that the three fermionic generations originate from a single 6D family. The model explains in a natural way both charged fermions mass hierarchy and sma...
[ { "created": "Mon, 30 May 2011 16:40:12 GMT", "version": "v1" } ]
2011-05-31
[ [ "Libanov", "M.", "" ], [ "Ling", "F. -S.", "" ] ]
We present a short review of a 6-dimensional model where a flavour puzzle of the Standard Model fermions finds an elegant solution. The mechanism is based on an idea that the three fermionic generations originate from a single 6D family. The model explains in a natural way both charged fermions mass hierarchy and small...
1011.6113
Kwei-Chou Yang
Kwei-Chou Yang
$1^{++}$ Nonet Singlet-Octet Mixing Angle, Strange Quark Mass, and Strange Quark Condensate
10 pages, 1 table, published version
Phys.Rev.D84:034035,2011
10.1103/PhysRevD.84.034035
CYCU-HEP-10-21
hep-ph hep-ex hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Two strategies are taken into account to determine the $f_1(1420)$-$f_1(1285)$ mixing angle $\theta$. (i) First, using the Gell-Mann-Okubo mass formula together with the $K_1(1270)$-$K_1(1400)$ mixing angle $\theta_{K_1}=(-34\pm 13)^\circ$ extracted from the data for ${\cal B}(B\to K_1(1270) \gamma), {\cal B}(B\to K_...
[ { "created": "Mon, 29 Nov 2010 01:30:43 GMT", "version": "v1" }, { "created": "Mon, 23 May 2011 18:35:59 GMT", "version": "v2" }, { "created": "Sat, 14 Apr 2012 15:19:23 GMT", "version": "v3" } ]
2012-04-17
[ [ "Yang", "Kwei-Chou", "" ] ]
Two strategies are taken into account to determine the $f_1(1420)$-$f_1(1285)$ mixing angle $\theta$. (i) First, using the Gell-Mann-Okubo mass formula together with the $K_1(1270)$-$K_1(1400)$ mixing angle $\theta_{K_1}=(-34\pm 13)^\circ$ extracted from the data for ${\cal B}(B\to K_1(1270) \gamma), {\cal B}(B\to K_1(...
2407.13476
Xiang Liu
Xiang Liu
Four-Charm-Quark Matter from the CMS Collaboration as a Witness of the Development of High-Precision Hadron Spectroscopy
2 pages and 1 figure. Accepted by Science Bulletin as Research Highlight
null
10.1016/j.scib.2024.07.033
null
hep-ph hep-ex
http://creativecommons.org/publicdomain/zero/1.0/
Recent CMS observations in the di-$J/\psi$ invariant mass spectrum reveal new structures at 6638 MeV ($X(6600)$)) and 7134 MeV, and confirm the $X(6900)$ at 6847 MeV. These findings provide crucial insights into four-charm-quark matter. The CMS Collaboration's result serves as a testament to the progress in exploring...
[ { "created": "Thu, 18 Jul 2024 12:55:24 GMT", "version": "v1" } ]
2024-08-05
[ [ "Liu", "Xiang", "" ] ]
Recent CMS observations in the di-$J/\psi$ invariant mass spectrum reveal new structures at 6638 MeV ($X(6600)$)) and 7134 MeV, and confirm the $X(6900)$ at 6847 MeV. These findings provide crucial insights into four-charm-quark matter. The CMS Collaboration's result serves as a testament to the progress in exploring e...
1604.06307
Marc Scott
Nick Evans, Carlisson Miller, Marc Scott
Inverse Magnetic Catalysis in Bottom-Up Holographic QCD
9 pages, 8 figures
Phys. Rev. D 94, 074034 (2016)
10.1103/PhysRevD.94.074034
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore the effect of magnetic field on chiral condensation in QCD via a simple bottom up holographic model which inputs QCD dynamics through the running of the anomalous dimension of the quark bilinear. Bottom up holography is a form of effective field theory and we use it to explore the dependence on the coeffic...
[ { "created": "Thu, 21 Apr 2016 13:45:40 GMT", "version": "v1" } ]
2016-10-26
[ [ "Evans", "Nick", "" ], [ "Miller", "Carlisson", "" ], [ "Scott", "Marc", "" ] ]
We explore the effect of magnetic field on chiral condensation in QCD via a simple bottom up holographic model which inputs QCD dynamics through the running of the anomalous dimension of the quark bilinear. Bottom up holography is a form of effective field theory and we use it to explore the dependence on the coefficie...
hep-ph/0304201
Nikolai Achasov
N.N. Achasov
The perspectives of decoding the nature of the a0(980) and f0(980) mesons and of defining the relative phase between the three-gluon and one-photon amplitudes in the J/psi decays
9 pages, LaTeX, Invited talk given on March 1, 2003 at "KEK Workshop on hadron spectroscopy and chiral particle search in J/psi decay data at BES", February 28 - March 1, 2003, Tsukuba, Japan
null
null
null
hep-ph hep-ex nucl-th
null
It is argued that the search of the J/psi --> f0(980)omega and J/psi --> a0(980)rho decays and the more precise definition of B(J/psi --> f0(980)phi) are the urgent purposes in the J/\psi spectroscopy. It is shown that the study of the omega-rho0 interference pattern in the J/psi --> (\rho^0+\omega)eta --> pi+pi-et...
[ { "created": "Tue, 22 Apr 2003 05:50:43 GMT", "version": "v1" } ]
2007-05-23
[ [ "Achasov", "N. N.", "" ] ]
It is argued that the search of the J/psi --> f0(980)omega and J/psi --> a0(980)rho decays and the more precise definition of B(J/psi --> f0(980)phi) are the urgent purposes in the J/\psi spectroscopy. It is shown that the study of the omega-rho0 interference pattern in the J/psi --> (\rho^0+\omega)eta --> pi+pi-eta de...
2301.00090
Rumin Wang
Ru-Min Wang, Yi Qiao, Yi-Jie Zhang, Xiao-Dong Cheng, Yuan-Guo Xu
Four-body Semileptonic Charm Decays $D\to P_1P_2\ell^+\nu_\ell $ Based on SU(3) Flavor Analysis
24 pages, 1 figure
null
10.1103/PhysRevD.107.056022
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivated by the significant experimental progress in probing semileptonic decays $D\to P_1P_2\ell^+\nu_\ell~(\ell=\mu,e)$, we analyze the branching ratios of the $D\to P_1P_2\ell^+\nu_\ell $ decays with the non-resonant, the light scalar meson resonant and the vector meson resonant contributions in this work. We obt...
[ { "created": "Sat, 31 Dec 2022 01:24:16 GMT", "version": "v1" }, { "created": "Sat, 1 Apr 2023 07:35:20 GMT", "version": "v2" } ]
2023-04-12
[ [ "Wang", "Ru-Min", "" ], [ "Qiao", "Yi", "" ], [ "Zhang", "Yi-Jie", "" ], [ "Cheng", "Xiao-Dong", "" ], [ "Xu", "Yuan-Guo", "" ] ]
Motivated by the significant experimental progress in probing semileptonic decays $D\to P_1P_2\ell^+\nu_\ell~(\ell=\mu,e)$, we analyze the branching ratios of the $D\to P_1P_2\ell^+\nu_\ell $ decays with the non-resonant, the light scalar meson resonant and the vector meson resonant contributions in this work. We obtai...
1905.05558
Mario Reig
Mario Reig
SO(3) family symmetry and axions
Contribution to the 2019 EW session of the 54th Rencontres de Moriond
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivated by the idea of Comprehensive Unification, we consider a gauged $SO(3)$ flavor extension of the Standard Model, including right-handed neutrinos and a Peccei-Quinn symmetry. The model accommodates the observed fermion masses and mixings and yields a characteristic, successful relation among them. The Peccei-...
[ { "created": "Tue, 14 May 2019 12:43:25 GMT", "version": "v1" } ]
2019-05-15
[ [ "Reig", "Mario", "" ] ]
Motivated by the idea of Comprehensive Unification, we consider a gauged $SO(3)$ flavor extension of the Standard Model, including right-handed neutrinos and a Peccei-Quinn symmetry. The model accommodates the observed fermion masses and mixings and yields a characteristic, successful relation among them. The Peccei-Qu...
2204.03309
Zihang Wang
Zihang Wang, Lijing Shao
Dark radiation as a probe for phase transition in the early universe
6 pages,4 figures
Phys. Rev. D 106 (2022) 103504
10.1103/PhysRevD.106.103504
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The cosmological constant is not necessarily small in the early universe. If a scalar field obtains a vacuum expectation value after a phase transition (PT), a possibly large cosmological constant could present before PT. The early cosmological constant (ECC) and the PT process may be detectable from dark radiation (...
[ { "created": "Thu, 7 Apr 2022 09:16:52 GMT", "version": "v1" }, { "created": "Sun, 17 Jul 2022 10:01:04 GMT", "version": "v2" } ]
2022-11-21
[ [ "Wang", "Zihang", "" ], [ "Shao", "Lijing", "" ] ]
The cosmological constant is not necessarily small in the early universe. If a scalar field obtains a vacuum expectation value after a phase transition (PT), a possibly large cosmological constant could present before PT. The early cosmological constant (ECC) and the PT process may be detectable from dark radiation (DR...
hep-ph/9903281
Ivan Schmidt
Ivan Schmidt (Universidad Federico Santa Maria, Chile), Jian-Jun Yang (Universidad Federico Santa Maria, Chile and Nanjing Normal University, China)
QCD condensate contributions to the effective quark potential in a covariant gauge
17 pages, 2 figures
Phys. Rev. D 60, 114005 (1999)
10.1103/PhysRevD.60.114005
USM-TH-75
hep-ph
null
We discuss QCD condensate contributions to the gluon propagator both in the fixed-point gauge and in covariant gauges for the external QCD vacuum gluon fields with the conclusion that a covariant gauge is essential to obtain a gauge invariant QCD vacuum energy density difference and to retain the unitarity of the qua...
[ { "created": "Mon, 8 Mar 1999 21:43:22 GMT", "version": "v1" }, { "created": "Mon, 22 Mar 1999 14:13:20 GMT", "version": "v2" } ]
2016-08-25
[ [ "Schmidt", "Ivan", "", "Universidad Federico Santa Maria, Chile" ], [ "Yang", "Jian-Jun", "", "Universidad Federico Santa Maria, Chile and Nanjing Normal University,\n China" ] ]
We discuss QCD condensate contributions to the gluon propagator both in the fixed-point gauge and in covariant gauges for the external QCD vacuum gluon fields with the conclusion that a covariant gauge is essential to obtain a gauge invariant QCD vacuum energy density difference and to retain the unitarity of the quark...