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2307.04169
Sanchari Bhattacharyya
Sanchari Bhattacharyya
Heavy Higgs boson Searches at the LHC in the light of a Left-Right Symmetric Model
25 pages, 9 tables, 12 figures, Accepted in Phys. Rev. D
Physical Review D, 109, 015034 (2024)
10.1103/PhysRevD.109.015034
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We investigate a Left-Right symmetric model respecting $SU(3)_C \otimes SU(2)_L \otimes U(1)_L \otimes SU(2)_R \otimes U(1)_R$ local gauge symmetry. We study the interactions of the heavy neutral and charged scalars of this model along with their production at the hadron collider and their subsequent decays. We analy...
[ { "created": "Sun, 9 Jul 2023 13:31:23 GMT", "version": "v1" }, { "created": "Fri, 2 Feb 2024 11:15:45 GMT", "version": "v2" } ]
2024-02-05
[ [ "Bhattacharyya", "Sanchari", "" ] ]
We investigate a Left-Right symmetric model respecting $SU(3)_C \otimes SU(2)_L \otimes U(1)_L \otimes SU(2)_R \otimes U(1)_R$ local gauge symmetry. We study the interactions of the heavy neutral and charged scalars of this model along with their production at the hadron collider and their subsequent decays. We analyze...
hep-ph/9809261
Antti Keranen
Jean Cleymans, Antti Keranen and Esko Suhonen
Exact Conservation of Quantum Numbers in the Statistical Description of High Energy Particle Reactions
Presented at the 11th Chris Engelbrecht Summer School in Theoretical Physics, ``Hadrosynthesis and Hadrons in Dense Matter'', Cape Town 4-13 February 1998, (to be published). 14 pages, 4 figures
null
null
null
hep-ph
null
Relativistic heavy ion collisions are studied taking the exact conservation of baryon number, strangeness and charge explicitly into account.
[ { "created": "Fri, 4 Sep 1998 09:11:17 GMT", "version": "v1" } ]
2007-05-23
[ [ "Cleymans", "Jean", "" ], [ "Keranen", "Antti", "" ], [ "Suhonen", "Esko", "" ] ]
Relativistic heavy ion collisions are studied taking the exact conservation of baryon number, strangeness and charge explicitly into account.
1207.0755
Ioannis Bouras
Ioannis Bouras, Andrej El, Oliver Fochler, Felix Reining, Florian Senzel, Jan Uphoff, Christian Wesp, Zhe Xu and Carsten Greiner
RHIC and LHC phenomena with an unified parton transport
12 pages, 11 Figures, Conference Proceeding of the 28th Winter Workshop on Nuclear Dynamics in Dorado del Mar in Puerto Rico, speaker is Carsten Greiner
null
10.1088/1742-6596/389/1/012019
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss recent applications of the partonic pQCD based cascade model BAMPS with focus on heavy-ion phenomeneology in hard and soft momentum range. The nuclear modification factor as well as elliptic flow are calculated in BAMPS for RHIC end LHC energies. These observables are also discussed within the same framewo...
[ { "created": "Tue, 3 Jul 2012 17:21:11 GMT", "version": "v1" } ]
2015-06-05
[ [ "Bouras", "Ioannis", "" ], [ "El", "Andrej", "" ], [ "Fochler", "Oliver", "" ], [ "Reining", "Felix", "" ], [ "Senzel", "Florian", "" ], [ "Uphoff", "Jan", "" ], [ "Wesp", "Christian", "" ], [ "Xu",...
We discuss recent applications of the partonic pQCD based cascade model BAMPS with focus on heavy-ion phenomeneology in hard and soft momentum range. The nuclear modification factor as well as elliptic flow are calculated in BAMPS for RHIC end LHC energies. These observables are also discussed within the same framework...
hep-ph/0410149
Abdelkader-Salim Safir
A. Salim Safir (Munich U.)
CKM matrix from non-leptonic B-decays
4 pages; 4 figures (requires epsfig, psfrag); To appear in the proceedings of 32nd International Conference on High-Energy Physics (ICHEP 04), Beijing, China, 16-22 Aug 2004
null
10.1142/9789812702227_0178
LMU 12/04
hep-ph
null
We analyze the impact of the forthcoming CP-violating observables in the $B_s\to K^+ K^-$ system, combined with the precise measurement of $\sin2\beta$ , in the extraction of the CKM matrix. Computing the penguin parameters $(r, \theta)$ within QCD factorization yields a precise determination of $(\bar\rho, \bar\eta)...
[ { "created": "Mon, 11 Oct 2004 11:45:16 GMT", "version": "v1" } ]
2017-08-23
[ [ "Safir", "A. Salim", "", "Munich U." ] ]
We analyze the impact of the forthcoming CP-violating observables in the $B_s\to K^+ K^-$ system, combined with the precise measurement of $\sin2\beta$ , in the extraction of the CKM matrix. Computing the penguin parameters $(r, \theta)$ within QCD factorization yields a precise determination of $(\bar\rho, \bar\eta)$,...
0707.1873
Pran Nath
Daniel Feldman, Zuowei Liu and Pran Nath
The Landscape of Sparticle Mass Hierarchies and Their Signature Space at the LHC
9 pages, 4 figures, typos corrected in figure 1
Phys.Rev.Lett.99:251802,2007; Erratum-ibid.100:069902,2008
10.1103/PhysRevLett.99.251802
null
hep-ph
null
The minimal supersymmetric standard model with soft breaking has a large landscape of supersymmetric particle mass hierarchies. This number is reduced significantly in well-motivated scenarios such as minimal supergravity and alternatives. We carry out an analysis of the landscape for the first four lightest particle...
[ { "created": "Fri, 13 Jul 2007 19:41:34 GMT", "version": "v1" }, { "created": "Tue, 30 Oct 2007 19:15:51 GMT", "version": "v2" }, { "created": "Wed, 2 Jan 2008 23:39:37 GMT", "version": "v3" } ]
2008-11-26
[ [ "Feldman", "Daniel", "" ], [ "Liu", "Zuowei", "" ], [ "Nath", "Pran", "" ] ]
The minimal supersymmetric standard model with soft breaking has a large landscape of supersymmetric particle mass hierarchies. This number is reduced significantly in well-motivated scenarios such as minimal supergravity and alternatives. We carry out an analysis of the landscape for the first four lightest particles ...
hep-ph/0609080
Dennis Sivers Dr.
Dennis Sivers
Single-Spin Observables and Orbital Structures in Hadronic Distributions
35 pages, 6 figures
Phys.Rev.D74:094008,2006; Erratum-ibid.D74:094008,2006
10.1103/PhysRevD.74.094008
null
hep-ph
null
Within the light-quark sector of the standard model, P-odd observables are generated from point-like electroweak processes while A_t- odd observables (neglecting quark mass parameters) come from dynamic spin-orbit correlations within hadrons or within larger composite systems, such as nuclei. The effects of A_t-odd d...
[ { "created": "Thu, 7 Sep 2006 22:04:38 GMT", "version": "v1" } ]
2016-09-06
[ [ "Sivers", "Dennis", "" ] ]
Within the light-quark sector of the standard model, P-odd observables are generated from point-like electroweak processes while A_t- odd observables (neglecting quark mass parameters) come from dynamic spin-orbit correlations within hadrons or within larger composite systems, such as nuclei. The effects of A_t-odd dyn...
2111.15503
Zuowei Liu
Mingxuan Du, Rundong Fang, Zuowei Liu, Van Que Tran
Enhanced long-lived dark photon signals at lifetime frontier detectors
17 pages, 17 figures; v2: PRD version
null
10.1103/PhysRevD.105.055012
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Long-lived particles that are present in many new physics models beyond the standard model, can be searched for in a number of newly proposed lifetime frontier experiments at the LHC. The signals of the long-lived dark photons can be significantly enhanced in a new dark photon model in which dark photons are copiousl...
[ { "created": "Tue, 30 Nov 2021 15:41:15 GMT", "version": "v1" }, { "created": "Sat, 23 Dec 2023 00:49:45 GMT", "version": "v2" } ]
2023-12-29
[ [ "Du", "Mingxuan", "" ], [ "Fang", "Rundong", "" ], [ "Liu", "Zuowei", "" ], [ "Tran", "Van Que", "" ] ]
Long-lived particles that are present in many new physics models beyond the standard model, can be searched for in a number of newly proposed lifetime frontier experiments at the LHC. The signals of the long-lived dark photons can be significantly enhanced in a new dark photon model in which dark photons are copiously ...
1411.3682
Miguel G. Echevarria
Miguel G. Echevarria, Ahmad Idilbi, Zhong-Bo Kang, Ivan Vitev
Sivers Asymmetry with QCD Evolution
9 pages, 3 figures. Proceedings of QCD Evolution 2014
Int. J. Mod. Phys. Conf. Ser. 37, 1560025 (2015)
10.1142/S2010194515600253
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze the Sivers asymmetry in both Drell-Yan (DY) production and semi-inclusive deep inelastic scattering (SIDIS), while considering properly defined transverse momentum dependent parton distribution and fragmentation functions and their QCD evolution. After finding a universal non-perturbative spin-independent ...
[ { "created": "Thu, 13 Nov 2014 19:52:11 GMT", "version": "v1" } ]
2015-11-10
[ [ "Echevarria", "Miguel G.", "" ], [ "Idilbi", "Ahmad", "" ], [ "Kang", "Zhong-Bo", "" ], [ "Vitev", "Ivan", "" ] ]
We analyze the Sivers asymmetry in both Drell-Yan (DY) production and semi-inclusive deep inelastic scattering (SIDIS), while considering properly defined transverse momentum dependent parton distribution and fragmentation functions and their QCD evolution. After finding a universal non-perturbative spin-independent Su...
1803.10603
Halil Mutuk
Halil Mutuk
S-wave Heavy Quarkonium Spectra: Mass, Decays and Transitions
11 pages, 14 Tables
Advances in High Energy Physics Volume 2018, Article ID 5961031, 12 pages
10.1155/2018/5961031
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we revisited phenomenological potentials. We studied S-wave heavy quarkonium spectra by two potential models. The first one is power potential and the second one is logarithmic potential. We calculated spin averaged masses, hyperfine splittings, decay constants, leptonic decay widhts, two-photon and two...
[ { "created": "Wed, 28 Mar 2018 13:39:50 GMT", "version": "v1" }, { "created": "Mon, 11 Jun 2018 10:40:16 GMT", "version": "v2" } ]
2018-11-27
[ [ "Mutuk", "Halil", "" ] ]
In this paper we revisited phenomenological potentials. We studied S-wave heavy quarkonium spectra by two potential models. The first one is power potential and the second one is logarithmic potential. We calculated spin averaged masses, hyperfine splittings, decay constants, leptonic decay widhts, two-photon and two-g...
0912.2961
Kenji Fukushima
Kenji Fukushima, Dmitri E. Kharzeev, Harmen J. Warringa
Electric-current Susceptibility and the Chiral Magnetic Effect
33 pages, 4 figures
Nucl.Phys.A836:311-336,2010
10.1016/j.nuclphysa.2010.02.003
BNL-90863-2009-JA, YITP-09-60
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We compute the electric-current susceptibility \chi of hot quark-gluon matter in an external magnetic field B. The difference between the susceptibilities measured in the directions parallel and perpendicular to the magnetic field is ultraviolet finite and given by \chi^\parallel-\chi^\perp = VTN_c\sum_f q_f^2 |q_f B...
[ { "created": "Tue, 15 Dec 2009 17:41:40 GMT", "version": "v1" } ]
2014-11-20
[ [ "Fukushima", "Kenji", "" ], [ "Kharzeev", "Dmitri E.", "" ], [ "Warringa", "Harmen J.", "" ] ]
We compute the electric-current susceptibility \chi of hot quark-gluon matter in an external magnetic field B. The difference between the susceptibilities measured in the directions parallel and perpendicular to the magnetic field is ultraviolet finite and given by \chi^\parallel-\chi^\perp = VTN_c\sum_f q_f^2 |q_f B|/...
hep-ph/0501102
Fei Huang
F. Huang, D. Zhang, Z.Y. Zhang, Y.W. Yu
Coupled-channels study of Lambda K and Sigma K states in the chiral SU(3) quark model
15 pages, 5 figures
Phys.Rev.C71:064001,2005
10.1103/PhysRevC.71.064001
null
hep-ph nucl-th
null
The $S$-wave $\Lambda K$ and $\Sigma K$ states with isospin $I=1/2$ are dynamically investigated within the framework of the chiral SU(3) quark model by solving a resonating group method (RGM) equation. The model parameters are taken from our previous work, which gave a good description of the energies of the baryon ...
[ { "created": "Thu, 13 Jan 2005 09:10:05 GMT", "version": "v1" }, { "created": "Mon, 20 Jun 2005 01:45:54 GMT", "version": "v2" } ]
2008-11-26
[ [ "Huang", "F.", "" ], [ "Zhang", "D.", "" ], [ "Zhang", "Z. Y.", "" ], [ "Yu", "Y. W.", "" ] ]
The $S$-wave $\Lambda K$ and $\Sigma K$ states with isospin $I=1/2$ are dynamically investigated within the framework of the chiral SU(3) quark model by solving a resonating group method (RGM) equation. The model parameters are taken from our previous work, which gave a good description of the energies of the baryon gr...
0909.3772
Martin Wiebusch
Werner Bernreuther, Patrick Gonzalez, Martin Wiebusch
Pseudoscalar Higgs Boson Decays into W and Z Bosons Revisited
null
null
null
PITHA 09/19
hep-ph
http://creativecommons.org/licenses/by-nc-sa/3.0/
We examine, in a number of Standard Model extensions, whether the decays $A \to WW/ZZ$ of a neutral pseudoscalar (Higgs) resonance can have branching ratios at the percent level and we determine the possible size of $B(A \to WW/ZZ)$ relative to the respective branching ratios of a scalar boson $H$. The branching rati...
[ { "created": "Mon, 21 Sep 2009 14:25:38 GMT", "version": "v1" } ]
2009-09-22
[ [ "Bernreuther", "Werner", "" ], [ "Gonzalez", "Patrick", "" ], [ "Wiebusch", "Martin", "" ] ]
We examine, in a number of Standard Model extensions, whether the decays $A \to WW/ZZ$ of a neutral pseudoscalar (Higgs) resonance can have branching ratios at the percent level and we determine the possible size of $B(A \to WW/ZZ)$ relative to the respective branching ratios of a scalar boson $H$. The branching ratios...
hep-ph/9507251
null
F. Buccella, O. Pisanti, P. Santorelli, and J. Soffer
Does One Need the Anomaly to Describe the Polarized Structure Functions?
10 pages LaTeX + 5 uuencoded figures
NuovoCim.A109:159-168,1996
10.1007/BF02730943
DSF-T-95/26, CPT-95/PE.3209
hep-ph
null
The SLAC data on the p, d and n polarized structure functions are fairly well reproduced with and without the contribution of the anomaly. The results are compared with a previous study based mainly on SMC data. The implications on the solution of the spin-crisis are discussed.
[ { "created": "Thu, 6 Jul 1995 17:11:11 GMT", "version": "v1" }, { "created": "Fri, 7 Jul 1995 09:58:31 GMT", "version": "v2" } ]
2008-11-26
[ [ "Buccella", "F.", "" ], [ "Pisanti", "O.", "" ], [ "Santorelli", "P.", "" ], [ "Soffer", "J.", "" ] ]
The SLAC data on the p, d and n polarized structure functions are fairly well reproduced with and without the contribution of the anomaly. The results are compared with a previous study based mainly on SMC data. The implications on the solution of the spin-crisis are discussed.
hep-ph/9909224
Marco Fabbrichesi
Marco Fabbrichesi
Estimating eps'/eps . A user's manual
Invited talk at QCD99, Montpellier, July 1999 Fig. 2 and reference corrected
Nucl.Phys.Proc.Suppl. 86 (2000) 322-328
10.1016/S0920-5632(00)00582-X
null
hep-ph
null
I review the current theoretical estimates of the CP-violating parameter eps'/eps, compare them to the experimental result and suggest a few guidelines in using the theoretical results.
[ { "created": "Thu, 2 Sep 1999 12:59:02 GMT", "version": "v1" }, { "created": "Mon, 13 Sep 1999 11:06:41 GMT", "version": "v2" }, { "created": "Tue, 14 Sep 1999 09:31:01 GMT", "version": "v3" }, { "created": "Tue, 28 Sep 1999 16:56:43 GMT", "version": "v4" } ]
2009-10-31
[ [ "Fabbrichesi", "Marco", "" ] ]
I review the current theoretical estimates of the CP-violating parameter eps'/eps, compare them to the experimental result and suggest a few guidelines in using the theoretical results.
2311.05078
Taegyu Lee
Radovan Dermisek, Keith Hermanek, Taegyu Lee, Navin McGinnis, Sangsik Yoon
Multi Higgs Boson Signals of a Modified Muon Yukawa Coupling at a Muon Collider
38 pages, 9 figures and 14 tables. V2 matches published version
null
10.1103/PhysRevD.109.095003
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We study di-Higgs and tri-Higgs boson productions at a muon collider as functions of the modification of the muon Yukawa coupling resulting from new physics parameterized by the dimension 6 mass operator. We show that the di-Higgs signal can be used to observe a deviation in the muon Yukawa coupling at the 10 % level...
[ { "created": "Thu, 9 Nov 2023 00:27:34 GMT", "version": "v1" }, { "created": "Fri, 24 May 2024 12:39:49 GMT", "version": "v2" } ]
2024-05-27
[ [ "Dermisek", "Radovan", "" ], [ "Hermanek", "Keith", "" ], [ "Lee", "Taegyu", "" ], [ "McGinnis", "Navin", "" ], [ "Yoon", "Sangsik", "" ] ]
We study di-Higgs and tri-Higgs boson productions at a muon collider as functions of the modification of the muon Yukawa coupling resulting from new physics parameterized by the dimension 6 mass operator. We show that the di-Higgs signal can be used to observe a deviation in the muon Yukawa coupling at the 10 % level f...
2203.00404
Giang Bui Thi Ha
Bui Thi Ha Giang
The influence of the scalar unparticle on the Z-production at high energy $e^{-}e^{+}$ scattering process
null
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
An attempt is made to present the contribution of the scalar unparticle on the Z-production cross-section at International Linear Colliders (ILC) with polarized initial beams in the Randall-Sundrum model. The cross-sections depend strongly on the polarization of $e^{-}$, $e^{+}$ initial beams, the center of mass ener...
[ { "created": "Tue, 1 Mar 2022 13:00:11 GMT", "version": "v1" }, { "created": "Tue, 9 Aug 2022 05:34:06 GMT", "version": "v2" } ]
2022-08-10
[ [ "Giang", "Bui Thi Ha", "" ] ]
An attempt is made to present the contribution of the scalar unparticle on the Z-production cross-section at International Linear Colliders (ILC) with polarized initial beams in the Randall-Sundrum model. The cross-sections depend strongly on the polarization of $e^{-}$, $e^{+}$ initial beams, the center of mass energy...
hep-ph/0209315
Carlos A. Salgado
K.J. Eskola, H. Honkanen, V.J. Kolhinen, P.V. Ruuskanen and C.A. Salgado
DGLAP analyses of nPDF: constraints from data
1 pages, 1 postscript figure. Invited talk at the NuFact'02 workshop (Neutrino Factories based on Muon Storage Rings), London, July 2002
J.Phys.G29:1947-1950,2003
10.1088/0954-3899/29/8/377
CERN/TH 2002-259
hep-ph
null
We explain how the constraints from present experimental data can be used to obtain the nPDF in the framework of LO DGLAP evolution. We will also compare the only two available sets of this type and comment on the important information that neutrino factories could provide.
[ { "created": "Thu, 26 Sep 2002 14:08:20 GMT", "version": "v1" } ]
2010-03-25
[ [ "Eskola", "K. J.", "" ], [ "Honkanen", "H.", "" ], [ "Kolhinen", "V. J.", "" ], [ "Ruuskanen", "P. V.", "" ], [ "Salgado", "C. A.", "" ] ]
We explain how the constraints from present experimental data can be used to obtain the nPDF in the framework of LO DGLAP evolution. We will also compare the only two available sets of this type and comment on the important information that neutrino factories could provide.
1204.0655
J. A. R. Cembranos
J. A. R. Cembranos, V. Gammaldi and A. L. Maroto
Dark matter origin of the gamma ray emission from the galactic center observed by HESS
4 pages, 3 figures. Improved resolution analysis
null
10.1103/PhysRevD.86.103506
null
hep-ph astro-ph.CO astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show that the gamma ray spectrum observed with the HESS array of Cherenkov telescopes coming from the Galactic Center (GC) region and identified with the source HESS J1745-290, is well fitted by the secondary photons coming from dark matter (DM) annihilation over a diffuse power-law background. The amount of photo...
[ { "created": "Tue, 3 Apr 2012 11:11:05 GMT", "version": "v1" }, { "created": "Wed, 16 May 2012 21:43:53 GMT", "version": "v2" } ]
2013-05-30
[ [ "Cembranos", "J. A. R.", "" ], [ "Gammaldi", "V.", "" ], [ "Maroto", "A. L.", "" ] ]
We show that the gamma ray spectrum observed with the HESS array of Cherenkov telescopes coming from the Galactic Center (GC) region and identified with the source HESS J1745-290, is well fitted by the secondary photons coming from dark matter (DM) annihilation over a diffuse power-law background. The amount of photons...
hep-ph/9901437
Pierre Desgrolard
P. Desgrolard (Lyon), L. Jenkovszky (Kiev), B. Struminsky (Kiev)
Unitarity, (anti)shadowing and the black disc limit
10 pages LaTeX, 2 figures (eps) included, (added precisions on the notion of antishadowing + corrected some typos)
Eur.Phys.J.C11:144-151,1999
10.1007/s100529900154
LYCEN 9906
hep-ph
null
By using realistic models for elastic hadron scattering we demonstrate that at present accelerator energies the $s$-channel unitarity bound is safe, not to be reached until $10^5$ GeV, while the black disc limit is saturated around 1 TeV. It will be followed by a larger transparency of the scattered particles near th...
[ { "created": "Thu, 28 Jan 1999 08:54:00 GMT", "version": "v1" }, { "created": "Wed, 10 Feb 1999 15:40:54 GMT", "version": "v2" } ]
2015-06-25
[ [ "Desgrolard", "P.", "", "Lyon" ], [ "Jenkovszky", "L.", "", "Kiev" ], [ "Struminsky", "B.", "", "Kiev" ] ]
By using realistic models for elastic hadron scattering we demonstrate that at present accelerator energies the $s$-channel unitarity bound is safe, not to be reached until $10^5$ GeV, while the black disc limit is saturated around 1 TeV. It will be followed by a larger transparency of the scattered particles near the ...
1302.5576
Maximilian Fallbacher
Mu-Chun Chen, Maximilian Fallbacher, Yuji Omura, Michael Ratz, Christian Staudt
Predictivity of models with spontaneously broken non-Abelian discrete flavor symmetries
34 pages, 4 figures, related Mathematica package can be found at http://einrichtungen.ph.tum.de/T30e/codes/KaehlerCorrections/, updated version with added reference, matching NPB article
Nucl.Phys. B873 (2013) 343-371
10.1016/j.nuclphysb.2013.04.020
TUM-HEP 877/13; UCI-TR-2013-03; FLAVOUR(267104)-ERC-36; CETUP*-12/018
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In a class of supersymmetric flavor models predictions are based on residual symmetries of some subsectors of the theory such as those of the charged leptons and neutrinos. However, the vacuum expectation values of the so-called flavon fields generally modify the K\"ahler potential of the setting, thus changing the p...
[ { "created": "Fri, 22 Feb 2013 13:07:34 GMT", "version": "v1" }, { "created": "Fri, 17 May 2013 08:00:23 GMT", "version": "v2" } ]
2013-05-20
[ [ "Chen", "Mu-Chun", "" ], [ "Fallbacher", "Maximilian", "" ], [ "Omura", "Yuji", "" ], [ "Ratz", "Michael", "" ], [ "Staudt", "Christian", "" ] ]
In a class of supersymmetric flavor models predictions are based on residual symmetries of some subsectors of the theory such as those of the charged leptons and neutrinos. However, the vacuum expectation values of the so-called flavon fields generally modify the K\"ahler potential of the setting, thus changing the pre...
hep-ph/9403371
Alexander Khodjamirian
B.L.Ioffe, A. Khodjamirian
Calculation of Chirality Violating Proton Structure Function h$_1$(x) in QCD
12 pages + 6 figures , LaTeX, preprint LMU-01-94. a few additions to the text; the figures have been added as uuencoded file
Phys.Rev. D51 (1995) 3373-3380
10.1103/PhysRevD.51.3373
null
hep-ph
null
The twist-two chirality violating proton structure function $h_1(x)$ measurable in the polarized Drell-Yan process is calculated by means of QCD sum rules at intermediate $x$, $0.3 < x < 0.7$ and $Q^2 \approx 5-10 GeV^2$.
[ { "created": "Sun, 27 Mar 1994 22:56:18 GMT", "version": "v1" }, { "created": "Fri, 30 Sep 1994 16:03:01 GMT", "version": "v2" } ]
2009-10-28
[ [ "Ioffe", "B. L.", "" ], [ "Khodjamirian", "A.", "" ] ]
The twist-two chirality violating proton structure function $h_1(x)$ measurable in the polarized Drell-Yan process is calculated by means of QCD sum rules at intermediate $x$, $0.3 < x < 0.7$ and $Q^2 \approx 5-10 GeV^2$.
1611.00784
Shikha Chaurasia
Christopher D. Carone, Shikha Chaurasia and Savannah Vasquez
Flavor from the double tetrahedral group without supersymmetry
23 pages, LaTeX, 1 figure
Phys. Rev. D 95, 015025 (2017)
10.1103/PhysRevD.95.015025
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider a class of flavor models proposed by Aranda, Carone and Lebed, relaxing the assumption of supersymmetry and allowing the flavor scale to float anywhere between the weak and Planck scales. We perform global fits to the charged fermion masses and CKM angles, and consider the dependence of the results on the...
[ { "created": "Wed, 2 Nov 2016 20:11:43 GMT", "version": "v1" } ]
2017-02-01
[ [ "Carone", "Christopher D.", "" ], [ "Chaurasia", "Shikha", "" ], [ "Vasquez", "Savannah", "" ] ]
We consider a class of flavor models proposed by Aranda, Carone and Lebed, relaxing the assumption of supersymmetry and allowing the flavor scale to float anywhere between the weak and Planck scales. We perform global fits to the charged fermion masses and CKM angles, and consider the dependence of the results on the u...
hep-ph/0007324
Dalibor Kekez
A. Ljubicic and D. Kekez
Detection of weakly interacting light vector bosons by coherent scattering
latex2e, uses elsart.cls, 9 pages, 3 eps figures
null
null
IRB-ZEF-2000/34
hep-ph
null
We propose a novel experimental method to produce and detect weakly interacting light vector bosons using coherent processes in refractive media. A light vector boson would be produced by a laser photon scattered at a plane interface between two media of different dielectric properties and will be converted back to p...
[ { "created": "Thu, 27 Jul 2000 23:02:38 GMT", "version": "v1" } ]
2007-05-23
[ [ "Ljubicic", "A.", "" ], [ "Kekez", "D.", "" ] ]
We propose a novel experimental method to produce and detect weakly interacting light vector bosons using coherent processes in refractive media. A light vector boson would be produced by a laser photon scattered at a plane interface between two media of different dielectric properties and will be converted back to pho...
hep-ph/0402186
Jun Tabei
Jun Tabei and Hiroshi Hotta
Higgs Mass from g-2 in Anomaly Mediated Supersymmetry Breaking Models
6 pages, 7 figures in LaTeX 2e format
null
null
null
hep-ph
null
We estimate the upper bound of the Higgs mass and allowed parameter region in the anomaly mediated supersymmetry breaking models. There has been a difficulty that the parameter region cannot be determined precisely in almost SUSY models. However, we succeed to give strict constraints on the parameters from the recent...
[ { "created": "Wed, 18 Feb 2004 13:50:49 GMT", "version": "v1" }, { "created": "Mon, 1 Mar 2004 13:54:02 GMT", "version": "v2" } ]
2007-05-23
[ [ "Tabei", "Jun", "" ], [ "Hotta", "Hiroshi", "" ] ]
We estimate the upper bound of the Higgs mass and allowed parameter region in the anomaly mediated supersymmetry breaking models. There has been a difficulty that the parameter region cannot be determined precisely in almost SUSY models. However, we succeed to give strict constraints on the parameters from the recent r...
hep-ph/9307307
Wolfgang Kilian
W. Kilian and T. Mannel
On the Renormalization of Heavy Quark Effective Field Theory
16 pages, IKDA 93/23
Phys. Rev. D 49, 1534 (1994)
10.1103/PhysRevD.49.1534
null
hep-ph
null
The construction of heavy quark effective field theory (HqEFT) is extended to arbitrary order in both expansion parameters $\alpha_s$ and $1/m_q$. Matching conditions are discussed for the general case, and it is verified that this approach correctly reproduces the infrared behaviour of full QCD. Choosing a renormali...
[ { "created": "Tue, 20 Jul 1993 13:59:54 GMT", "version": "v1" } ]
2013-11-13
[ [ "Kilian", "W.", "" ], [ "Mannel", "T.", "" ] ]
The construction of heavy quark effective field theory (HqEFT) is extended to arbitrary order in both expansion parameters $\alpha_s$ and $1/m_q$. Matching conditions are discussed for the general case, and it is verified that this approach correctly reproduces the infrared behaviour of full QCD. Choosing a renormaliza...
1903.08458
Daniel Molnar
Daniel A. S. Molnar, Igor Danilkin, Marc Vanderhaeghen
The role of charged exotic states in $e^+e^- \to \psi(2S) \; \pi^+ \pi ^-$
null
null
10.1016/j.physletb.2019.134851
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, we use the dispersion theory to provide a physical description of recent BESIII data on the reaction $ e^+ e^- \to \psi (2S) \, \pi^+ \, \pi^-$. Taking into account explicitly the effects of charged exotic intermediate states in the $t$- and $u$-channels as well as the two-pion final state interaction, ...
[ { "created": "Wed, 20 Mar 2019 11:50:22 GMT", "version": "v1" }, { "created": "Thu, 29 Aug 2019 16:37:59 GMT", "version": "v2" } ]
2020-04-29
[ [ "Molnar", "Daniel A. S.", "" ], [ "Danilkin", "Igor", "" ], [ "Vanderhaeghen", "Marc", "" ] ]
In this work, we use the dispersion theory to provide a physical description of recent BESIII data on the reaction $ e^+ e^- \to \psi (2S) \, \pi^+ \, \pi^-$. Taking into account explicitly the effects of charged exotic intermediate states in the $t$- and $u$-channels as well as the two-pion final state interaction, we...
hep-ph/0703205
Kuang-Ta Chao
Ce Meng, Kuang-Ta Chao
Decays of the X(3872) and $\chi_{c1}(2P)$ charmonium
Version submitted and accepted for publication in PRD; more discussions and references added
Phys.Rev.D75:114002,2007
10.1103/PhysRevD.75.114002
null
hep-ph hep-ex
null
We re-examine the re-scattering mechanism for the X(3872), as a candidate for the 2P charmonium state $\chi_{c1}(2P)$, decaying to $J/\psi\rho(\omega)$ through exchanging $D^{(*)}$ mesons between intermediate states $D(\bar{D})$ and $\bar{D}^*(D^*)$. We evaluate the dispersive part, as well as the absorptive one, of ...
[ { "created": "Mon, 19 Mar 2007 19:53:11 GMT", "version": "v1" }, { "created": "Thu, 10 May 2007 16:20:37 GMT", "version": "v2" } ]
2008-11-26
[ [ "Meng", "Ce", "" ], [ "Chao", "Kuang-Ta", "" ] ]
We re-examine the re-scattering mechanism for the X(3872), as a candidate for the 2P charmonium state $\chi_{c1}(2P)$, decaying to $J/\psi\rho(\omega)$ through exchanging $D^{(*)}$ mesons between intermediate states $D(\bar{D})$ and $\bar{D}^*(D^*)$. We evaluate the dispersive part, as well as the absorptive one, of th...
hep-ph/0510401
Michael Trusov
I.M.Narodetskii, C.Semay, B.Silvestre-Brac, Yu.A.Simonov, M.A.Trusov
Pentaquarks in the Jaffe-Wilczek approximation
14 pages, 2 tables, LaTeX2e. References corrected
Phys.Atom.Nucl. 68 (2005) 536-540; Yad.Fiz. 68 (2005) 564-568
10.1134/1.1891207
null
hep-ph
null
The masses of $uudd\bar s $, $uudd\bar d$ and $uuss\bar d$ pentaquarks are evaluated in a framework of both the Effective Hamiltonian approach to QCD and spinless Salpeter using the Jaffe--Wilczek diquark approximation and the string interaction for the diquark--diquark--antiquark system. The pentaquark masses are fo...
[ { "created": "Sun, 30 Oct 2005 13:53:31 GMT", "version": "v1" }, { "created": "Sun, 13 Nov 2005 18:00:16 GMT", "version": "v2" } ]
2009-11-11
[ [ "Narodetskii", "I. M.", "" ], [ "Semay", "C.", "" ], [ "Silvestre-Brac", "B.", "" ], [ "Simonov", "Yu. A.", "" ], [ "Trusov", "M. A.", "" ] ]
The masses of $uudd\bar s $, $uudd\bar d$ and $uuss\bar d$ pentaquarks are evaluated in a framework of both the Effective Hamiltonian approach to QCD and spinless Salpeter using the Jaffe--Wilczek diquark approximation and the string interaction for the diquark--diquark--antiquark system. The pentaquark masses are foun...
hep-ph/0411095
Junichi Tanaka
Junichi Tanaka, Taiki Yamamura, Shoji Asai and Junichi Kanzaki
Study of Black Holes with the ATLAS detector at the LHC
27 pages
Eur.Phys.J.C41:19-33,2005
10.1140/epjcd/s2005-02-008-x
ATL-PHYS-2003-037
hep-ph
null
We evaluate the potential of the ATLAS detector for discovering black holes produced at the LHC, as predicted in models with large extra dimensions where quantum gravity is at the TeV scale. We assume that black holes decay by Hawking evaporation to all Standard Model particles democratically. We comment on the possi...
[ { "created": "Fri, 5 Nov 2004 21:33:28 GMT", "version": "v1" } ]
2011-09-13
[ [ "Tanaka", "Junichi", "" ], [ "Yamamura", "Taiki", "" ], [ "Asai", "Shoji", "" ], [ "Kanzaki", "Junichi", "" ] ]
We evaluate the potential of the ATLAS detector for discovering black holes produced at the LHC, as predicted in models with large extra dimensions where quantum gravity is at the TeV scale. We assume that black holes decay by Hawking evaporation to all Standard Model particles democratically. We comment on the possibi...
hep-ph/9809207
Fawzi Boudjema
M. Baillargeon, F.Boudjema, C. Hamzaoui and J.Lindig
Minimal Ten-parameter Hermitian Texture Zeroes Mass Matrices and the CKM Matrix
14 pages.Talk given by M.B. at the MRST 98, ``Towards the Theory of Everything", Montr\'eal, 13-15 May 1998
null
10.1063/1.57066
LAPTH-697/98 and UQAM-PHE-98/04
hep-ph
null
Hermitian mass matrices for the up and down quarks with texture zeroes but with the minimum number of parameters, ten, are investigated. We show how these {\em minimum parameter} forms can be obtained from a general set of hermitian matrices through weak basis transformations. For the most simple forms we show that o...
[ { "created": "Tue, 1 Sep 1998 09:59:11 GMT", "version": "v1" } ]
2009-10-31
[ [ "Baillargeon", "M.", "" ], [ "Boudjema", "F.", "" ], [ "Hamzaoui", "C.", "" ], [ "Lindig", "J.", "" ] ]
Hermitian mass matrices for the up and down quarks with texture zeroes but with the minimum number of parameters, ten, are investigated. We show how these {\em minimum parameter} forms can be obtained from a general set of hermitian matrices through weak basis transformations. For the most simple forms we show that one...
hep-ph/0503020
Yutaka Hosotani
Yutaka Hosotani and Mitsuru Mabe
Higgs Boson Mass and Electroweak-Gravity Hierarchy from Dynamical Gauge-Higgs Unification in the Warped Spacetime
14 pages. The argument below (22) was elaborated
Phys.Lett.B615:257-265,2005
10.1016/j.physletb.2005.04.039
OU-HET 519/2005
hep-ph gr-qc
null
Dynamical electroweak symmetry breaking by the Hosotani mechanism in the Randall-Sundrum warped spacetime is examined, relations among the W-boson mass (m_W), the Kaluza-Klein mass scale (M_{KK}), and the Higgs boson mass (m_H) being derived. It is shown that M_{KK}/m_W = (2 pi kR)^{1/2} (pi/theta_W) and m_H /m_W = 0...
[ { "created": "Wed, 2 Mar 2005 09:36:16 GMT", "version": "v1" }, { "created": "Fri, 11 Mar 2005 09:24:46 GMT", "version": "v2" }, { "created": "Thu, 14 Apr 2005 03:39:01 GMT", "version": "v3" } ]
2011-07-19
[ [ "Hosotani", "Yutaka", "" ], [ "Mabe", "Mitsuru", "" ] ]
Dynamical electroweak symmetry breaking by the Hosotani mechanism in the Randall-Sundrum warped spacetime is examined, relations among the W-boson mass (m_W), the Kaluza-Klein mass scale (M_{KK}), and the Higgs boson mass (m_H) being derived. It is shown that M_{KK}/m_W = (2 pi kR)^{1/2} (pi/theta_W) and m_H /m_W = 0.0...
2206.15223
Volodymyr Biloshytskyi
Igor Danilkin, Volodymyr Biloshytskyi, Xiu-Lei Ren, Marc Vanderhaeghen
Analytical dispersive parameterization for elastic scattering of spinless particles
11 pages, 4 figures, Section 4 "Adler zero" was added, accepted for publication in Phys. Rev. D
null
10.1103/PhysRevD.107.074021
null
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, we present an improved parameterization of the elastic scattering of spin-0 particles, which is based on a dispersive representation for the inverse scattering amplitude. Besides being based on well known general principles, the requirement that the inverse amplitude should satisfy the dispersion relat...
[ { "created": "Thu, 30 Jun 2022 12:13:07 GMT", "version": "v1" }, { "created": "Tue, 30 Aug 2022 21:28:20 GMT", "version": "v2" }, { "created": "Thu, 23 Mar 2023 10:55:57 GMT", "version": "v3" } ]
2023-05-03
[ [ "Danilkin", "Igor", "" ], [ "Biloshytskyi", "Volodymyr", "" ], [ "Ren", "Xiu-Lei", "" ], [ "Vanderhaeghen", "Marc", "" ] ]
In this paper, we present an improved parameterization of the elastic scattering of spin-0 particles, which is based on a dispersive representation for the inverse scattering amplitude. Besides being based on well known general principles, the requirement that the inverse amplitude should satisfy the dispersion relatio...
1603.04242
Bingfang Yang
Bingfang Yang, Zhiyong Liu, Ning Liu
Rare Higgs three body decay induced by top-Higgs FCNC coupling in the littlest Higgs Model with T-parity
Matches the version published in Chinese Physics C
Chinese Physics C Vol. 41, No. 4 (2017) 043103
10.1088/1674-1137/41/4/043103
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivated by the search for flavor-changing neutral current (FCNC) top quark decays at the LHC, we calculate rare Higgs three body decay $H\rightarrow Wbc$ induced by top-Higgs FCNC coupling in the littlest Higgs model with T-parity(LHT). We find that the branching ratios of $H\rightarrow Wbc$ in the LHT model can re...
[ { "created": "Mon, 14 Mar 2016 12:48:32 GMT", "version": "v1" }, { "created": "Sat, 18 Feb 2017 02:34:50 GMT", "version": "v2" } ]
2017-02-21
[ [ "Yang", "Bingfang", "" ], [ "Liu", "Zhiyong", "" ], [ "Liu", "Ning", "" ] ]
Motivated by the search for flavor-changing neutral current (FCNC) top quark decays at the LHC, we calculate rare Higgs three body decay $H\rightarrow Wbc$ induced by top-Higgs FCNC coupling in the littlest Higgs model with T-parity(LHT). We find that the branching ratios of $H\rightarrow Wbc$ in the LHT model can reac...
hep-ph/0202010
Zoltan Ligeti
Sandrine Laplace, Zoltan Ligeti, Yosef Nir, Gilad Perez
Implications of the CP asymmetry in semileptonic B decay
16 pages, a sign typo in eq.(11) fixed, to appear in Phys. Rev. D
Phys.Rev.D65:094040,2002
10.1103/PhysRevD.65.094040
LAL 02-01, LBNL-49436, WIS/4/02-Jan-DPP
hep-ph hep-ex
null
Recent experimental searches for $A_{SL}$, the CP asymmetry in semileptonic B decay, have reached an accuracy of order one percent. Consequently, they give meaningful constraints on new physics. We find that cancellations between the Standard Model (SM) and new physics contributions to $B^0 - \bar B^0$ mixing cannot ...
[ { "created": "Mon, 4 Feb 2002 20:33:44 GMT", "version": "v1" }, { "created": "Mon, 29 Apr 2002 01:25:47 GMT", "version": "v2" } ]
2014-11-17
[ [ "Laplace", "Sandrine", "" ], [ "Ligeti", "Zoltan", "" ], [ "Nir", "Yosef", "" ], [ "Perez", "Gilad", "" ] ]
Recent experimental searches for $A_{SL}$, the CP asymmetry in semileptonic B decay, have reached an accuracy of order one percent. Consequently, they give meaningful constraints on new physics. We find that cancellations between the Standard Model (SM) and new physics contributions to $B^0 - \bar B^0$ mixing cannot be...
hep-ph/9207228
null
A.C. Mattingly and P.M. Stevenson
QCD Perturbation Theory at Low Energies
11 pages including 3 Postscript Figures using Epsf.tex, LaTex
Phys.Rev.Lett. 69 (1992) 1320-1323
10.1103/PhysRevLett.69.1320
DOE/ER/05096-50
hep-ph
null
We apply the optimization procedure based on the Principle of Minimal Sensitivity to the third-order calculation of $\R$. The effective couplant remains finite, freezing to a value $\alpha_s/\pi = 0.26$ at low energies. Using Poggio-Quinn-Weinberg smearing we find good agreement between theory and experiment right do...
[ { "created": "Thu, 9 Jul 1992 20:55:00 GMT", "version": "v1" } ]
2009-10-22
[ [ "Mattingly", "A. C.", "" ], [ "Stevenson", "P. M.", "" ] ]
We apply the optimization procedure based on the Principle of Minimal Sensitivity to the third-order calculation of $\R$. The effective couplant remains finite, freezing to a value $\alpha_s/\pi = 0.26$ at low energies. Using Poggio-Quinn-Weinberg smearing we find good agreement between theory and experiment right down...
1103.1266
Yara do Amaral Coutinho
E. Ramirez Barreto, Y. A. Coutinho, J. S\'a Borges
Top quark forward-backward asymmetry from the $3-3-1$ model
12 pages, 4 figures, 2 tables
Phys.Rev.D83:054006,2011
10.1103/PhysRevD.83.054006
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The forward-backward asymmetry $A_{FB}$ in top quark pair production, measured at the Tevatron, is probably related to the contribution of new particles. The Tevatron result is more than a $2\sigma$ deviation from the standard model prediction and motivates the application of alternative models introducing new states...
[ { "created": "Mon, 7 Mar 2011 13:01:55 GMT", "version": "v1" } ]
2011-03-21
[ [ "Barreto", "E. Ramirez", "" ], [ "Coutinho", "Y. A.", "" ], [ "Borges", "J. Sá", "" ] ]
The forward-backward asymmetry $A_{FB}$ in top quark pair production, measured at the Tevatron, is probably related to the contribution of new particles. The Tevatron result is more than a $2\sigma$ deviation from the standard model prediction and motivates the application of alternative models introducing new states. ...
2103.12226
Matthew Schwartz
Matthew D. Schwartz
Modern Machine Learning and Particle Physics
null
Harvard Data Science Review, 2021 May 13;3(2)
10.1162/99608f92.beeb1183
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Over the past five years, modern machine learning has been quietly revolutionizing particle physics. Old methodology is being outdated and entirely new ways of thinking about data are becoming commonplace. This article will review some aspects of the natural synergy between modern machine learning and particle physic...
[ { "created": "Mon, 22 Mar 2021 23:22:33 GMT", "version": "v1" } ]
2022-06-10
[ [ "Schwartz", "Matthew D.", "" ] ]
Over the past five years, modern machine learning has been quietly revolutionizing particle physics. Old methodology is being outdated and entirely new ways of thinking about data are becoming commonplace. This article will review some aspects of the natural synergy between modern machine learning and particle physics,...
hep-ph/9501345
null
I.V. Andreev, M. Biyajima, I.M. Dremin, and N. Suzuki
Intermittency and Bose-Einstein correlations
32 pages, latex, 12 figures (not included, available on request)
Int. J. Mod. Phys. A10 (1995) 3951
10.1142/S0217751X95001856
SULDP-1995-1
hep-ph
null
The role of Bose-Einstein correlations in a widely discussed intermittency phenomenon is reviewed. In particular, it is shown that particle correlations of different origin are better displayed when analysed as functions of appropriately chosen variables. Correspondingly, if the shape of Bose-Einstein contribution is...
[ { "created": "Fri, 20 Jan 1995 01:40:59 GMT", "version": "v1" } ]
2015-06-25
[ [ "Andreev", "I. V.", "" ], [ "Biyajima", "M.", "" ], [ "Dremin", "I. M.", "" ], [ "Suzuki", "N.", "" ] ]
The role of Bose-Einstein correlations in a widely discussed intermittency phenomenon is reviewed. In particular, it is shown that particle correlations of different origin are better displayed when analysed as functions of appropriately chosen variables. Correspondingly, if the shape of Bose-Einstein contribution is c...
1609.02289
Jean Cleymans
J. Cleymans
On the Use of the Tsallis Distribution at LHC Energies
4 pages, 3 figures, contribution to conference Strangeness in Quark Matter sqm2016
null
10.1088/1742-6596/779/1/012079
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Numerous papers have appeared recently showing fits to transverse momentum ($p_T$) spectra measured at the Large Hadron Collider (LHC) in proton - proton collisions.This talk focuses on the fits extending to very large values of the transverse momentum with $p_T$ values up to 200 GeV/c as measured by the ATLAS and CM...
[ { "created": "Thu, 8 Sep 2016 06:50:11 GMT", "version": "v1" } ]
2017-03-08
[ [ "Cleymans", "J.", "" ] ]
Numerous papers have appeared recently showing fits to transverse momentum ($p_T$) spectra measured at the Large Hadron Collider (LHC) in proton - proton collisions.This talk focuses on the fits extending to very large values of the transverse momentum with $p_T$ values up to 200 GeV/c as measured by the ATLAS and CMS ...
hep-ph/0110277
Yuichiro Kiyo
Y. Kiyo and Y. Sumino
Off-shell Suppression of Renormalons in Non-relativistic QCD Boundstates
Version to appear in Phys. Lett. B. 12 pages, 1 figure
Phys.Lett. B535 (2002) 145-154
10.1016/S0370-2693(02)01731-8
TU-636
hep-ph
null
We study an effect of the off-shellness of the quark and antiquark inside a heavy quarkonium system on IR renormalons contained in the perturbative computations of the quarkonium energy levels. We demonstrate that, when the off-shellness p_Q^2 -m_Q^2 \sim alpha_S^2 m_Q^2 is larger than m_Q Lambda_QCD, renormalons in ...
[ { "created": "Mon, 22 Oct 2001 08:06:28 GMT", "version": "v1" }, { "created": "Mon, 21 Jan 2002 02:17:50 GMT", "version": "v2" }, { "created": "Fri, 12 Apr 2002 05:30:16 GMT", "version": "v3" } ]
2009-11-07
[ [ "Kiyo", "Y.", "" ], [ "Sumino", "Y.", "" ] ]
We study an effect of the off-shellness of the quark and antiquark inside a heavy quarkonium system on IR renormalons contained in the perturbative computations of the quarkonium energy levels. We demonstrate that, when the off-shellness p_Q^2 -m_Q^2 \sim alpha_S^2 m_Q^2 is larger than m_Q Lambda_QCD, renormalons in th...
1711.01393
Enrique Diaz
M. A. Arroyo-Ure\~na, E. D\'iaz, O. Meza-Aldama, G. Tavares-Velasco
$\tau^{-}\to \ell_i^{-} \ell_i^{+} \ell_j^{-} \bar{\nu}_{j} \nu_{\tau}$ decays with a magnetic dipole term
3 Figures
null
10.1142/S0217751X17501950
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Using the massive helicity formalism we calculate the five-body average square amplitude of the decays $\tau^{-}\to \ell_i^{-} \ell_i^{+} \ell_j^{-} \bar{\nu}_{j} \nu_{\tau}$ $(\ell=e,\,\mu)$ within the Standard Model (SM), we then introduce a dimension-five effective vertex $\Gamma^{\tau\tau \gamma}$ in order to det...
[ { "created": "Sat, 4 Nov 2017 04:19:44 GMT", "version": "v1" } ]
2018-01-17
[ [ "Arroyo-Ureña", "M. A.", "" ], [ "Díaz", "E.", "" ], [ "Meza-Aldama", "O.", "" ], [ "Tavares-Velasco", "G.", "" ] ]
Using the massive helicity formalism we calculate the five-body average square amplitude of the decays $\tau^{-}\to \ell_i^{-} \ell_i^{+} \ell_j^{-} \bar{\nu}_{j} \nu_{\tau}$ $(\ell=e,\,\mu)$ within the Standard Model (SM), we then introduce a dimension-five effective vertex $\Gamma^{\tau\tau \gamma}$ in order to deter...
2101.05302
Steven Harris
Jean-Fran\c{c}ois Fortin, Huai-Ke Guo, Steven P. Harris, Elijah Sheridan, Kuver Sinha
Magnetars and Axion-like Particles: Probes with the Hard X-ray Spectrum
v1: 44 pages, 15 figures. Comments welcome v2: Updated version with uncertainty bands on ALP couplings coming from different choices of the nuclear equation of state, the mass of the magnetar, and the model of proton singlet superfluidity. Calculation of n+p-->n+p+a clarified. Version matches that published in ...
null
10.1088/1475-7516/2021/06/036
INT-PUB-21-001
hep-ph astro-ph.HE nucl-th
http://creativecommons.org/licenses/by/4.0/
Quiescent hard X-ray and soft gamma-ray emission from neutron stars constitute a promising frontier to explore axion-like-particles (ALPs). ALP production in the core peaks at energies of a few keV to a few hundreds of keV; subsequently, the ALPs escape and convert to photons in the magnetosphere. The emissivity goes...
[ { "created": "Wed, 13 Jan 2021 19:01:10 GMT", "version": "v1" }, { "created": "Thu, 15 Jul 2021 21:32:21 GMT", "version": "v2" } ]
2021-07-19
[ [ "Fortin", "Jean-François", "" ], [ "Guo", "Huai-Ke", "" ], [ "Harris", "Steven P.", "" ], [ "Sheridan", "Elijah", "" ], [ "Sinha", "Kuver", "" ] ]
Quiescent hard X-ray and soft gamma-ray emission from neutron stars constitute a promising frontier to explore axion-like-particles (ALPs). ALP production in the core peaks at energies of a few keV to a few hundreds of keV; subsequently, the ALPs escape and convert to photons in the magnetosphere. The emissivity goes a...
1608.02106
Song Mao
Li Gang, Yu Si-He, Song Mao, Zhang Yu, Zhou Ya-Jin and Guo Jian-You
Higher-Order QCD prediction for dark matter pair associated with a b-jet production at the LHC
13 pages, 5 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Dark matter associated visible particle production at high energy colliders provides a unique way to determine the microscopic properties of the dark matter. We investigate a pair of fermionic dark matter particles associated with a b-jet production at the LHC, through a mediator which couples to standard model or da...
[ { "created": "Sat, 6 Aug 2016 13:18:27 GMT", "version": "v1" }, { "created": "Fri, 18 Nov 2016 07:56:01 GMT", "version": "v2" } ]
2016-11-21
[ [ "Gang", "Li", "" ], [ "Si-He", "Yu", "" ], [ "Mao", "Song", "" ], [ "Yu", "Zhang", "" ], [ "Ya-Jin", "Zhou", "" ], [ "Jian-You", "Guo", "" ] ]
Dark matter associated visible particle production at high energy colliders provides a unique way to determine the microscopic properties of the dark matter. We investigate a pair of fermionic dark matter particles associated with a b-jet production at the LHC, through a mediator which couples to standard model or dark...
hep-ph/9603225
Lee Jae Sik
Jae Sik Lee and Jae Kwan Kim
$R_b$-$R_c$ Crisis and the Higgs Boson Mass from LEP Precision Data
10 pages, tar'ed gzip'ed uuencoded files, LaTex
null
null
null
hep-ph
null
We study the effects on the Higgs boson mass from LEP precision data of the new physics explaining $R_b$-$R_c$ crisis. We implement a fit to LEP observables with the new physics. We obtain $M_H^{\rm New Physics} = 85 ^{+ 467}_{-56} ~~{\rm GeV}$. Comparing with the value of the SM fit, $M_H^{\rm SM} = 38^{+ 96}_{-21} ...
[ { "created": "Wed, 6 Mar 1996 05:47:59 GMT", "version": "v1" } ]
2007-05-23
[ [ "Lee", "Jae Sik", "" ], [ "Kim", "Jae Kwan", "" ] ]
We study the effects on the Higgs boson mass from LEP precision data of the new physics explaining $R_b$-$R_c$ crisis. We implement a fit to LEP observables with the new physics. We obtain $M_H^{\rm New Physics} = 85 ^{+ 467}_{-56} ~~{\rm GeV}$. Comparing with the value of the SM fit, $M_H^{\rm SM} = 38^{+ 96}_{-21} ~~...
hep-ph/0612132
Walter Grimus
W. Grimus, H. Kuhbock
A renormalizable SO(10) GUT scenario with spontaneous CP violation
16 pages, two eps figures
Eur.Phys.J.C51:721-729,2007
10.1140/epjc/s10052-007-0324-5
UWThPh-2006-29
hep-ph
null
We consider fermion masses and mixings in a renormalizable SUSY SO(10) GUT with Yukawa couplings of scalar fields in the representation 10 + 120 + 126 bar. We investigate a scenario defined by the following assumptions: i) A single large scale in the theory, the GUT scale. ii) Small neutrino masses generated by the t...
[ { "created": "Mon, 11 Dec 2006 16:46:43 GMT", "version": "v1" } ]
2008-11-26
[ [ "Grimus", "W.", "" ], [ "Kuhbock", "H.", "" ] ]
We consider fermion masses and mixings in a renormalizable SUSY SO(10) GUT with Yukawa couplings of scalar fields in the representation 10 + 120 + 126 bar. We investigate a scenario defined by the following assumptions: i) A single large scale in the theory, the GUT scale. ii) Small neutrino masses generated by the typ...
hep-ph/9603321
Miroslav Stohr
Jiri Horejsi
Electroweak interactions and high-energy limit
Revised version
Czech.J.Phys. 47 (1997) 951-977
10.1023/A:1021177005216
PRA-HEP 95/9
hep-ph
null
A pedagogical introduction to the equivalence theorem for longitudinal vector bosons in electroweak theories is presented and the problem of high-energy behaviour of scattering amplitudes in the Standard Model is briefly reviewed. To make the treatment self-contained, the basics of the Standard Model are summarized i...
[ { "created": "Fri, 15 Mar 1996 13:00:40 GMT", "version": "v1" }, { "created": "Mon, 1 Apr 1996 07:53:39 GMT", "version": "v2" } ]
2009-10-28
[ [ "Horejsi", "Jiri", "" ] ]
A pedagogical introduction to the equivalence theorem for longitudinal vector bosons in electroweak theories is presented and the problem of high-energy behaviour of scattering amplitudes in the Standard Model is briefly reviewed. To make the treatment self-contained, the basics of the Standard Model are summarized in ...
hep-ph/0509001
Matthias Jamin
Matthias Jamin
Contour-improved versus fixed-order perturbation theory in hadronic tau decays
20 pages, 5 eps-figures; discussion on scale and scheme dependence added as compared to published journal version JHEP 09 (2005) 058
JHEP 0509 (2005) 058
10.1088/1126-6708/2005/09/058
UAB-FT-587
hep-ph hep-lat
null
The hadronic decay rate of the tau lepton serves as one of the most precise determinations of the QCD coupling alpha_s. The dominant theoretical source of uncertainty at present resides in the seeming disparity of two approaches to improving the perturbative expansion with the help of the renormalisation group, namel...
[ { "created": "Wed, 31 Aug 2005 20:01:38 GMT", "version": "v1" }, { "created": "Mon, 26 Sep 2005 16:58:10 GMT", "version": "v2" } ]
2009-11-11
[ [ "Jamin", "Matthias", "" ] ]
The hadronic decay rate of the tau lepton serves as one of the most precise determinations of the QCD coupling alpha_s. The dominant theoretical source of uncertainty at present resides in the seeming disparity of two approaches to improving the perturbative expansion with the help of the renormalisation group, namely ...
2304.03847
W. N. Polyzou
Wayne Polyzou
Light-front puzzles
29 pages, no figures - corrected reference 35
null
null
null
hep-ph hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Light-front formulations of quantum field theories have many advantages for computing electroweak matrix elements of strongly interacting systems and other quantities that are used to study hadronic structure. The theory can be formulated in Hamiltonian form so non-perturbative calculations of the strongly interactin...
[ { "created": "Fri, 7 Apr 2023 21:54:35 GMT", "version": "v1" }, { "created": "Wed, 12 Apr 2023 19:00:53 GMT", "version": "v2" } ]
2023-04-14
[ [ "Polyzou", "Wayne", "" ] ]
Light-front formulations of quantum field theories have many advantages for computing electroweak matrix elements of strongly interacting systems and other quantities that are used to study hadronic structure. The theory can be formulated in Hamiltonian form so non-perturbative calculations of the strongly interacting ...
hep-ph/9811482
Marcus Mauser
M. Fischer, S. Groote, J.G. K\"orner, M.C. Mauser, B. Lampe
Polarized top decay into polarized W: t(up)->W(up) + b at O(alpha_s)
13 pages, 3 postscript figures added, file standard.sty included, material on normal polarization added, some misprints corrected
Phys.Lett. B451 (1999) 406-413
10.1016/S0370-2693(99)00194-X
MZ-TH/98-47
hep-ph
null
We consider the decay of a polarized top quark into a polarized W-boson plus a bottom quark, followed by the decay of the W-boson into a pair of leptons or quarks. The polar angle distribution of the top spin relative to the W-momentum and the polar angle distribution of the lepton (or quark) in the W-rest frame is g...
[ { "created": "Thu, 26 Nov 1998 18:07:26 GMT", "version": "v1" }, { "created": "Fri, 5 Feb 1999 12:50:11 GMT", "version": "v2" }, { "created": "Tue, 2 Mar 1999 17:18:59 GMT", "version": "v3" } ]
2009-10-31
[ [ "Fischer", "M.", "" ], [ "Groote", "S.", "" ], [ "Körner", "J. G.", "" ], [ "Mauser", "M. C.", "" ], [ "Lampe", "B.", "" ] ]
We consider the decay of a polarized top quark into a polarized W-boson plus a bottom quark, followed by the decay of the W-boson into a pair of leptons or quarks. The polar angle distribution of the top spin relative to the W-momentum and the polar angle distribution of the lepton (or quark) in the W-rest frame is gov...
1203.1168
Yue Chongxing
Qing-Guo Zeng, Chong-Xing Yue, Jiao Zhang
Pair production of the heavy leptons associated with a gauge boson gamma or Z at the ILC
References added, published version
Nucl.Phys.B860:152-166,2012
10.1016/j.nuclphysb.2012.02.017
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The T-odd leptons are the typical particles predicted by the littlest Higgs model with T-parity (LHT model) and the observation of these particles might be regarded as the direct evidence of the LHT model. In this paper, we investigate the production of a pair of T-odd leptons associated with a gauge boson $V$($\gamm...
[ { "created": "Tue, 6 Mar 2012 11:19:52 GMT", "version": "v1" }, { "created": "Wed, 21 Mar 2012 07:04:09 GMT", "version": "v2" } ]
2015-06-04
[ [ "Zeng", "Qing-Guo", "" ], [ "Yue", "Chong-Xing", "" ], [ "Zhang", "Jiao", "" ] ]
The T-odd leptons are the typical particles predicted by the littlest Higgs model with T-parity (LHT model) and the observation of these particles might be regarded as the direct evidence of the LHT model. In this paper, we investigate the production of a pair of T-odd leptons associated with a gauge boson $V$($\gamma$...
2109.03456
Satoshi Nakamura
Satoshi X. Nakamura
Novel description of $P_c(4312)^+$, $P_c(4380)^+$, and $P_c(4457)^+$ with double triangle cusps
6 pages, 4 figures, Contribution to the Proceedings for 10th International Workshop on Charm Physics (CHARM 2020), May 31-June 5 2021, Mexico City, Mexico
null
10.22323/1.385.0029
null
hep-ph hep-ex nucl-th
http://creativecommons.org/licenses/by-nc-nd/4.0/
We propose a novel scenario for the peak structures, usually interpreted as hidden charm pentaquark ($P_c$) contributions, in the LHCb's $\Lambda_b^0\to J/\psi p K^-$ data. The key idea is to utilize leading or lower-order singularities from double triangle mechanisms. The singularities cause anomalous threshold cusp...
[ { "created": "Wed, 8 Sep 2021 06:53:41 GMT", "version": "v1" } ]
2022-09-21
[ [ "Nakamura", "Satoshi X.", "" ] ]
We propose a novel scenario for the peak structures, usually interpreted as hidden charm pentaquark ($P_c$) contributions, in the LHCb's $\Lambda_b^0\to J/\psi p K^-$ data. The key idea is to utilize leading or lower-order singularities from double triangle mechanisms. The singularities cause anomalous threshold cusps,...
1409.6963
Alexander Lenz
Alexander Lenz
$B$-mixing in and beyond the Standard model
Proceedings of the 8th International Workshop on the CKM Unitarity Traingle, 8-12 September 2014, Vienna, Austria
null
null
IPPP/14/85 DCPT/14/170
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We review the status of mixing of neutral $B$-mesons, including a discussion of the current precision of Standard Model (SM) predictions as well as the space that is left for effects of new physics. In that respect we present several observables, which are particularly sensitive to the remaining new physics (NP) para...
[ { "created": "Wed, 24 Sep 2014 14:02:37 GMT", "version": "v1" } ]
2014-09-25
[ [ "Lenz", "Alexander", "" ] ]
We review the status of mixing of neutral $B$-mesons, including a discussion of the current precision of Standard Model (SM) predictions as well as the space that is left for effects of new physics. In that respect we present several observables, which are particularly sensitive to the remaining new physics (NP) parame...
1902.03203
Pok Man Lo
Pok Man Lo, Francesco Giacosa
Thermal contribution of unstable states
11 pages, 2 figures, to be submitted to EPJC
null
10.1140/epjc/s10052-019-6844-y
null
hep-ph cond-mat.stat-mech nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Within the framework of the Lee model, we analyze in detail the difference between the energy derivative of the phase shift and the standard spectral function of the unstable state. The fact that the model is exactly solvable allows us to demonstrate the construction of these observables from various exact Green func...
[ { "created": "Fri, 8 Feb 2019 17:40:17 GMT", "version": "v1" } ]
2019-05-01
[ [ "Lo", "Pok Man", "" ], [ "Giacosa", "Francesco", "" ] ]
Within the framework of the Lee model, we analyze in detail the difference between the energy derivative of the phase shift and the standard spectral function of the unstable state. The fact that the model is exactly solvable allows us to demonstrate the construction of these observables from various exact Green functi...
1101.0727
P. Aurenche
P. Aurenche, Rahul Basu and M. Fontannaz
NLO Calculation of Prompt Photon Production in DIS at HERA
null
null
10.1140/epjc/s10052-011-1616-3
LPT-Orsay 10-5
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a NLO calculation of prompt photon production in DIS. The calculation involves direct, fragmentation and resolved contributions. It is performed in the virtual-photon proton center-of-mass system. A comparison of the theoretical results with HERA data is carried out.
[ { "created": "Tue, 4 Jan 2011 14:45:45 GMT", "version": "v1" } ]
2015-05-20
[ [ "Aurenche", "P.", "" ], [ "Basu", "Rahul", "" ], [ "Fontannaz", "M.", "" ] ]
We present a NLO calculation of prompt photon production in DIS. The calculation involves direct, fragmentation and resolved contributions. It is performed in the virtual-photon proton center-of-mass system. A comparison of the theoretical results with HERA data is carried out.
2305.10759
Xander Nagels
Eung Jin Chun, Tomasz P. Dutka, Tae Hyun Jung, Xander Nagels, Miguel Vanvlasselaer
Bubble-assisted Leptogenesis
27 pages, 8 figures, published version, references added, discussion slightly changed
null
null
CTPU-PTC-23-17
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore the possibility of embedding thermal leptogenesis within a first-order phase transition (FOPT) such that RHNs remain massless until a FOPT arises. Their sudden and violent mass gain allows the neutrinos to become thermally decoupled, and the lepton asymmetry generated from their decay can be, in principle,...
[ { "created": "Thu, 18 May 2023 06:58:01 GMT", "version": "v1" }, { "created": "Thu, 14 Sep 2023 15:17:35 GMT", "version": "v2" } ]
2023-09-15
[ [ "Chun", "Eung Jin", "" ], [ "Dutka", "Tomasz P.", "" ], [ "Jung", "Tae Hyun", "" ], [ "Nagels", "Xander", "" ], [ "Vanvlasselaer", "Miguel", "" ] ]
We explore the possibility of embedding thermal leptogenesis within a first-order phase transition (FOPT) such that RHNs remain massless until a FOPT arises. Their sudden and violent mass gain allows the neutrinos to become thermally decoupled, and the lepton asymmetry generated from their decay can be, in principle, f...
0906.1903
Takeshi Araki
Takeshi Araki and C. Q. Geng
Leptogenesis in a model with Friedberg-Lee symmetry
14 pages, 8 figures. v2: typos corrected, minor changes, accepted version in PLB
Phys.Lett.B680:343-350,2009
10.1016/j.physletb.2009.09.015
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the matter-antimatter asymmetry through the leptogenesis mechanism in a specific model with the Friedberg-Lee (FL) symmetry.We relate the leptogenesis with the CP violating Dirac and Majorana phases in the Maki-Nakagawa-Sakata leptonic mixing matrix and illustrate the net baryon asymmetry of the universe in ...
[ { "created": "Wed, 10 Jun 2009 10:14:57 GMT", "version": "v1" }, { "created": "Wed, 23 Sep 2009 08:20:32 GMT", "version": "v2" } ]
2009-10-06
[ [ "Araki", "Takeshi", "" ], [ "Geng", "C. Q.", "" ] ]
We study the matter-antimatter asymmetry through the leptogenesis mechanism in a specific model with the Friedberg-Lee (FL) symmetry.We relate the leptogenesis with the CP violating Dirac and Majorana phases in the Maki-Nakagawa-Sakata leptonic mixing matrix and illustrate the net baryon asymmetry of the universe in te...
1003.3869
Oram Gedalia
Oram Gedalia, Lorenzo Mannelli and Gilad Perez
Covariant Description of Flavor Conversion in the LHC Era
24 pages, 6 figures. Some corrections and clarifications; references added. Matches published version
JHEP 1010:046,2010
10.1007/JHEP10(2010)046
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A simple covariant formalism to describe flavor and CP violation in the left-handed quark sector in a model independent way is provided. The introduction of a covariant basis, which makes the standard model approximate symmetry structure manifest, leads to a physical and transparent picture of flavor conversion proce...
[ { "created": "Fri, 19 Mar 2010 19:53:55 GMT", "version": "v1" }, { "created": "Wed, 20 Oct 2010 12:37:41 GMT", "version": "v2" } ]
2010-10-21
[ [ "Gedalia", "Oram", "" ], [ "Mannelli", "Lorenzo", "" ], [ "Perez", "Gilad", "" ] ]
A simple covariant formalism to describe flavor and CP violation in the left-handed quark sector in a model independent way is provided. The introduction of a covariant basis, which makes the standard model approximate symmetry structure manifest, leads to a physical and transparent picture of flavor conversion process...
2206.07273
Fatma Aslan
Fatma Aslan, Saman Bastami, Peter Schweitzer
Parton model description of quark and antiquark correlators and TMDs
Reviewed version. No major changes
Nucl. Phys. B 984 (2022) 115947
10.1016/j.nuclphysb.2022.115947
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Model studies play an important role for the understanding and elucidation of the nonperturbative properties of transverse momentum dependent parton distribution functions (TMDs). The parton model is often a helpful framework and starting point for first explorations of TMD properties and the description of deep-inel...
[ { "created": "Wed, 15 Jun 2022 03:19:35 GMT", "version": "v1" }, { "created": "Tue, 6 Sep 2022 10:42:33 GMT", "version": "v2" } ]
2022-09-07
[ [ "Aslan", "Fatma", "" ], [ "Bastami", "Saman", "" ], [ "Schweitzer", "Peter", "" ] ]
Model studies play an important role for the understanding and elucidation of the nonperturbative properties of transverse momentum dependent parton distribution functions (TMDs). The parton model is often a helpful framework and starting point for first explorations of TMD properties and the description of deep-inelas...
1810.06408
Ahmad Moursy ElSayed
Shaaban Khalil, Ahmad Moursy, Abhijit Kumar Saha and Arunansu Sil
A $U(1)_R$ inspired inflation model in no-scale Supergravity
5 pages, 2 figures
Phys. Rev. D 99, 095022 (2019)
10.1103/PhysRevD.99.095022
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider a cosmological inflation scenario based on a no-scale supergravity sector with $U(1)_R$ symmetry. It is shown that a tree level $U(1)_R$ symmetric superpotential alone does not lead to a slowly rolling scalar potential. A deformation of this tree level superpotential by including an explicit $R$ symmetry ...
[ { "created": "Mon, 15 Oct 2018 14:43:32 GMT", "version": "v1" }, { "created": "Wed, 24 Apr 2019 14:27:05 GMT", "version": "v2" } ]
2019-05-29
[ [ "Khalil", "Shaaban", "" ], [ "Moursy", "Ahmad", "" ], [ "Saha", "Abhijit Kumar", "" ], [ "Sil", "Arunansu", "" ] ]
We consider a cosmological inflation scenario based on a no-scale supergravity sector with $U(1)_R$ symmetry. It is shown that a tree level $U(1)_R$ symmetric superpotential alone does not lead to a slowly rolling scalar potential. A deformation of this tree level superpotential by including an explicit $R$ symmetry br...
2001.00974
Benjamin Guiot
B. Guiot and B. Z. Kopeliovich
Spacetime development of in-medium hadronization: Scenario for leading hadrons
25 pages, 16 figures
Phys. Rev. C 102, 045201 (2020)
10.1103/PhysRevC.102.045201
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a perturbative QCD based model for vacuum and in-medium hadronization. The effects of induced energy loss and nuclear absorption have been included. The main objective is the determination of the relative contribution of these mechanisms to the multiplicity ratio observable, measured in semi-inclusive deep...
[ { "created": "Fri, 3 Jan 2020 20:20:10 GMT", "version": "v1" }, { "created": "Wed, 1 Jul 2020 14:04:35 GMT", "version": "v2" } ]
2020-10-14
[ [ "Guiot", "B.", "" ], [ "Kopeliovich", "B. Z.", "" ] ]
We present a perturbative QCD based model for vacuum and in-medium hadronization. The effects of induced energy loss and nuclear absorption have been included. The main objective is the determination of the relative contribution of these mechanisms to the multiplicity ratio observable, measured in semi-inclusive deep-i...
1202.5097
Joan Sola
Harald Fritzsch, Joan Sola
Matter Non-conservation in the Universe and Dynamical Dark Energy
Version accepted in Class. Quant. Grav. Extended discussion and references added
null
10.1088/0264-9381/29/21/215002
null
hep-ph astro-ph.CO gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In an expanding universe the vacuum energy density \rho_{\Lambda} is expected to be a dynamical quantity. In quantum field theory in curved space-time \rho_{\Lambda} should exhibit a slow evolution, determined by the expansion rate of the universe H. Recent measurements on the time variation of the fine structure con...
[ { "created": "Thu, 23 Feb 2012 07:15:27 GMT", "version": "v1" }, { "created": "Thu, 1 Mar 2012 19:41:36 GMT", "version": "v2" }, { "created": "Thu, 30 Aug 2012 09:28:01 GMT", "version": "v3" } ]
2015-06-04
[ [ "Fritzsch", "Harald", "" ], [ "Sola", "Joan", "" ] ]
In an expanding universe the vacuum energy density \rho_{\Lambda} is expected to be a dynamical quantity. In quantum field theory in curved space-time \rho_{\Lambda} should exhibit a slow evolution, determined by the expansion rate of the universe H. Recent measurements on the time variation of the fine structure const...
hep-ph/0003099
Timur I. Rashba
T.I. Rashba, V.B. Semikoz
Neutrino scattering on polarized electron target as a test of neutrino magnetic moment
11 pages, LaTeX2e, using elsart.cls and epsf.sty, 3 postscript figures. Accepted in Phys. Lett. B
Phys.Lett. B479 (2000) 218-223
10.1016/S0370-2693(00)00329-4
null
hep-ph
null
We suggest to use a polarized electron target for improving the sensitivity of the search for the neutrino magnetic moment to the level $\sim 3\cdot10^{-13}\mu_B$ in the processes of neutrino (antineutrino) -- electron scattering. It is shown that in this case the weak interaction term in the total cross section is s...
[ { "created": "Fri, 10 Mar 2000 15:56:06 GMT", "version": "v1" } ]
2009-10-31
[ [ "Rashba", "T. I.", "" ], [ "Semikoz", "V. B.", "" ] ]
We suggest to use a polarized electron target for improving the sensitivity of the search for the neutrino magnetic moment to the level $\sim 3\cdot10^{-13}\mu_B$ in the processes of neutrino (antineutrino) -- electron scattering. It is shown that in this case the weak interaction term in the total cross section is sig...
0704.0605
Alexei Nefediev
C.Hanhart (FZ-Juelich), Yu.S.Kalashnikova, A.E.Kudryavtsev, A.V.Nefediev (ITEP, Moscow)
Reconciling the X(3872) with the near-threshold enhancement in the D^0\bar{D}^{*0} final state
RevTeX4, 17 pages, some references updated and corrected, version published in Phys. Rev. D
Phys.Rev.D76:034007,2007
10.1103/PhysRevD.76.034007
FZJ-IKP(TH)-2007-14
hep-ph hep-ex
null
We investigate the enhancement in the D^0\bar{D}^0\pi^0 final state with the mass M=3875.2\pm 0.7^{+0.3}_{-1.6}\pm 0.8 MeV found recently by the Belle Collaboration in the B\to K D^0\bar{D}^0\pi^0 decay and test the possibility that this is yet another manifestation of the well-established resonance X(3872). We perfo...
[ { "created": "Wed, 4 Apr 2007 16:12:31 GMT", "version": "v1" }, { "created": "Mon, 27 Aug 2007 13:21:54 GMT", "version": "v2" } ]
2008-11-26
[ [ "Hanhart", "C.", "", "FZ-Juelich" ], [ "Kalashnikova", "Yu. S.", "", "ITEP, Moscow" ], [ "Kudryavtsev", "A. E.", "", "ITEP, Moscow" ], [ "Nefediev", "A. V.", "", "ITEP, Moscow" ] ]
We investigate the enhancement in the D^0\bar{D}^0\pi^0 final state with the mass M=3875.2\pm 0.7^{+0.3}_{-1.6}\pm 0.8 MeV found recently by the Belle Collaboration in the B\to K D^0\bar{D}^0\pi^0 decay and test the possibility that this is yet another manifestation of the well-established resonance X(3872). We perform...
hep-ph/0002134
Siannah Pegnaranda Rivas
Antonio Dobado, Maria J. Herrero, Siannah Penaranda
The Higgs sector of the MSSM in the decoupling limit
LaTeX, 26 pages, 1 figure included. Uses cite.sty. Version accepted in Eur. Phys. J. C
Eur.Phys.J.C17:487-500,2000
10.1007/s100520000486
FTUAM 99/20
hep-ph
null
We study the heavy Higgs sector of the MSSM composed of the H^\pm, H^0 and A^0 particles in the so-called decoupling limit where m_{A^0} >> m_Z. By integrating out these heavy Higgs particles to one-loop, we compute the effective action for the electroweak gauge bosons and find out that, in the decoupling limit, all ...
[ { "created": "Fri, 11 Feb 2000 21:50:44 GMT", "version": "v1" }, { "created": "Thu, 2 Mar 2000 19:33:01 GMT", "version": "v2" }, { "created": "Tue, 10 Oct 2000 11:28:50 GMT", "version": "v3" } ]
2011-09-13
[ [ "Dobado", "Antonio", "" ], [ "Herrero", "Maria J.", "" ], [ "Penaranda", "Siannah", "" ] ]
We study the heavy Higgs sector of the MSSM composed of the H^\pm, H^0 and A^0 particles in the so-called decoupling limit where m_{A^0} >> m_Z. By integrating out these heavy Higgs particles to one-loop, we compute the effective action for the electroweak gauge bosons and find out that, in the decoupling limit, all th...
hep-ph/0104145
Ben Allanach PhD
B. C. Allanach (University of Cambridge)
SOFTSUSY: a program for calculating supersymmetric spectra
Updated for SOFTSUSY3.3.3. Can be downloaded from http://projects.hepforge.org/softsusy/ Further updated versions of the manual will be distributed with the code
Comput.Phys.Commun.143:305-331,2002
10.1016/S0010-4655(01)00460-X
CERN-TH/2001-102
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
SOFTSUSY is a program which accurately calculates the spectrum of superparticles in the CP-conserving Minimal Supersymmetric Standard Model (MSSM), with a full flavour mixing structure. The program solves the renormalisation group equations with theoretical constraints on soft supersymmetry breaking terms provided by...
[ { "created": "Sat, 14 Apr 2001 13:42:51 GMT", "version": "v1" }, { "created": "Tue, 4 Nov 2003 10:37:15 GMT", "version": "v10" }, { "created": "Mon, 22 Nov 2004 10:08:48 GMT", "version": "v11" }, { "created": "Fri, 26 Aug 2005 14:45:26 GMT", "version": "v12" }, { ...
2012-07-31
[ [ "Allanach", "B. C.", "", "University of Cambridge" ] ]
SOFTSUSY is a program which accurately calculates the spectrum of superparticles in the CP-conserving Minimal Supersymmetric Standard Model (MSSM), with a full flavour mixing structure. The program solves the renormalisation group equations with theoretical constraints on soft supersymmetry breaking terms provided by t...
2311.07648
Zachary Bogorad
Zachary Bogorad and Peter W. Graham and Harikrishnan Ramani
Coherent Self-Interactions of Dark Matter in the Bullet Cluster
10 pages, 2 figures
null
null
null
hep-ph astro-ph.CO astro-ph.GA
http://creativecommons.org/licenses/by/4.0/
Many models of dark matter include self-interactions beyond gravity. A variety of astrophysical observations have previously been used to place limits on the strength of such self-interactions. However, previous works have generally focused either on short-range interactions resulting in individual dark matter partic...
[ { "created": "Mon, 13 Nov 2023 19:00:01 GMT", "version": "v1" } ]
2023-11-15
[ [ "Bogorad", "Zachary", "" ], [ "Graham", "Peter W.", "" ], [ "Ramani", "Harikrishnan", "" ] ]
Many models of dark matter include self-interactions beyond gravity. A variety of astrophysical observations have previously been used to place limits on the strength of such self-interactions. However, previous works have generally focused either on short-range interactions resulting in individual dark matter particle...
1804.09836
Sony Martins
M. B. Gay Ducati and S. Martins
Heavy Mesons Photoproduction in Peripheral AA Collisions
null
Phys. Rev. D 97, 116013 (2018)
10.1103/PhysRevD.97.116013
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The exclusive photoproduction of the heavy vector mesons $\psi$'s and $Y$'s is investigated in peripheral lead-lead collisions for the energies available at the LHC, $\sqrt{s}=2.76$ TeV and $\sqrt{s}=5.02$ TeV. In order to evaluate the robustness of the light-cone color dipole formalism, previously tested in the ultr...
[ { "created": "Wed, 25 Apr 2018 23:52:44 GMT", "version": "v1" }, { "created": "Fri, 8 Jun 2018 15:13:34 GMT", "version": "v2" } ]
2018-06-27
[ [ "Ducati", "M. B. Gay", "" ], [ "Martins", "S.", "" ] ]
The exclusive photoproduction of the heavy vector mesons $\psi$'s and $Y$'s is investigated in peripheral lead-lead collisions for the energies available at the LHC, $\sqrt{s}=2.76$ TeV and $\sqrt{s}=5.02$ TeV. In order to evaluate the robustness of the light-cone color dipole formalism, previously tested in the ultrap...
0912.5423
Chia-Min Lin
Lu-Yun Lee, Kingman Cheung and Chia-Min Lin
Comments on SUSY inflation models on the brane
7 pages
Mod.Phys.Lett.A25:2105-2110,2010
10.1142/S0217732310033487
null
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we consider a class of inflation models on the brane where the dominant part of the inflaton scalar potential does not depend on the inflaton field value during inflation. In particular, we consider supernatural inflation, its hilltop version, A-term inflation, and supersymmetric (SUSY) D- and F-term hy...
[ { "created": "Wed, 30 Dec 2009 07:41:59 GMT", "version": "v1" } ]
2014-11-20
[ [ "Lee", "Lu-Yun", "" ], [ "Cheung", "Kingman", "" ], [ "Lin", "Chia-Min", "" ] ]
In this paper we consider a class of inflation models on the brane where the dominant part of the inflaton scalar potential does not depend on the inflaton field value during inflation. In particular, we consider supernatural inflation, its hilltop version, A-term inflation, and supersymmetric (SUSY) D- and F-term hybr...
1505.04888
Massimo Mannarelli
Massimo Mannarelli
Overview of Crystalline Color Superconductors
4 pages, 1 figure. Proceedings of CSQCD IV, Prerow, Germany
null
null
null
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Inhomogeneous phases may appear when a stress is applied to a system and the system can minimize the free energy breaking the rotational invariance. Various examples are known in Nature of this sort, as the paramagnetic to ferromagnetic phase transition, or the fluid/solid phase transition. If the rotational symmetry...
[ { "created": "Tue, 19 May 2015 06:59:26 GMT", "version": "v1" } ]
2015-05-20
[ [ "Mannarelli", "Massimo", "" ] ]
Inhomogeneous phases may appear when a stress is applied to a system and the system can minimize the free energy breaking the rotational invariance. Various examples are known in Nature of this sort, as the paramagnetic to ferromagnetic phase transition, or the fluid/solid phase transition. If the rotational symmetry i...
hep-ph/9407405
Scott Chapman
Scott Chapman and Ulrich Heinz
HBT Correlators -- Current Formalism vs. Wigner Function Formulation
8 pages, latex
Phys.Lett.B340:250-253,1994
10.1016/0370-2693(94)01277-6
null
hep-ph
null
We clarify the relationship between the current formalism developed by Gyulassy, Kaufmann and Wilson and the Wigner function formulation suggested by Pratt for the 2-particle correlator in Hanbury-Brown Twiss interferometry. When applied to a hydrodynamical description of the source with a sharp freeze-out hypersurfa...
[ { "created": "Sat, 30 Jul 1994 10:33:45 GMT", "version": "v1" } ]
2009-10-09
[ [ "Chapman", "Scott", "" ], [ "Heinz", "Ulrich", "" ] ]
We clarify the relationship between the current formalism developed by Gyulassy, Kaufmann and Wilson and the Wigner function formulation suggested by Pratt for the 2-particle correlator in Hanbury-Brown Twiss interferometry. When applied to a hydrodynamical description of the source with a sharp freeze-out hypersurface...
1001.0891
Z.G. Tan
Z.G. Tan, L.Y. Huang, C.B. Yang
Some Characteristic Parameters of Proton from the Bag Model
4 pages, 2 figures
null
null
null
hep-ph
http://creativecommons.org/licenses/by/3.0/
We treat the mass of a proton as the total static energy which can be separated into two parts that come from the contribution of quarks and gluons respectively. We adopt the essential of the bag model of hadron to discuss the structure of a proton and find that the calculated temperature, proton radius, the bag cons...
[ { "created": "Wed, 6 Jan 2010 13:28:08 GMT", "version": "v1" }, { "created": "Fri, 8 Jan 2010 13:10:00 GMT", "version": "v2" }, { "created": "Sat, 9 Jan 2010 13:23:14 GMT", "version": "v3" } ]
2010-01-09
[ [ "Tan", "Z. G.", "" ], [ "Huang", "L. Y.", "" ], [ "Yang", "C. B.", "" ] ]
We treat the mass of a proton as the total static energy which can be separated into two parts that come from the contribution of quarks and gluons respectively. We adopt the essential of the bag model of hadron to discuss the structure of a proton and find that the calculated temperature, proton radius, the bag consta...
1306.1321
Bumseok Kyae
Ji-Haeng Huh and Bumseok Kyae
U(1)_{B_1+B_2-2L_1} mediation for the natural SUSY and the anomalous muon g-2
17 pages, 2 eps figures, version to appear in Phys.Lett.B
Phys. Lett. B 726 (2013) 729
10.1016/j.physletb.2013.09.037
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a U(1)^\prime mediated supersymmetry (SUSY) breaking, in which U(1)^\prime is identified with U(1)_{B_1+B_2-2L_1}. The U(1)_{B_1+B_2-2L_1} gauge symmetry, which is anomaly-free with the field contents of the minimal supersymmetric standard model, assigns \pm 1/3 charges to the first and second generations ...
[ { "created": "Thu, 6 Jun 2013 07:20:00 GMT", "version": "v1" }, { "created": "Fri, 27 Sep 2013 11:05:44 GMT", "version": "v2" } ]
2013-11-12
[ [ "Huh", "Ji-Haeng", "" ], [ "Kyae", "Bumseok", "" ] ]
We propose a U(1)^\prime mediated supersymmetry (SUSY) breaking, in which U(1)^\prime is identified with U(1)_{B_1+B_2-2L_1}. The U(1)_{B_1+B_2-2L_1} gauge symmetry, which is anomaly-free with the field contents of the minimal supersymmetric standard model, assigns \pm 1/3 charges to the first and second generations of...
hep-ph/0211223
Marco Stratmann
Marco Stratmann (Regensburg)
Exploring Nucleon Spin Structure in Longitudinally Polarized Collisions
10 pages, 7 figures, uses aipproc style, invited talk presented at the 15th International Spin Physics Symposium 'SPIN 2002', Sept. 9-14 2002, Brookhaven National Laboratory, Upton, NY
null
10.1063/1.1607123
null
hep-ph
null
We review how RHIC is expected to deepen our understanding of the spin structure of longitudinally polarized nucleons. After briefly outlining the current status of spin-dependent parton densities and pointing out open questions, we focus on theoretical calculations and predictions relevant for the RHIC spin program....
[ { "created": "Thu, 14 Nov 2002 16:39:27 GMT", "version": "v1" } ]
2009-11-07
[ [ "Stratmann", "Marco", "", "Regensburg" ] ]
We review how RHIC is expected to deepen our understanding of the spin structure of longitudinally polarized nucleons. After briefly outlining the current status of spin-dependent parton densities and pointing out open questions, we focus on theoretical calculations and predictions relevant for the RHIC spin program. E...
1105.3275
A. H. Rezaeian
Eugene Levin, Amir H. Rezaeian
The Ridge from the BFKL evolution and beyond
12 pages, 6 figures; v2: version improved. The version to appear in Phys. Rev. D
Phys.Rev.D84:034031,2011
10.1103/PhysRevD.84.034031
null
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show that the long-range rapidity correlations between the produced charged-hadron pairs from two BFKL parton showers generate considerable azimuthal angle correlations. These correlations have no 1/N_c suppression. The effect of gluon saturation on these correlations are discussed and we show that it is important...
[ { "created": "Tue, 17 May 2011 03:47:08 GMT", "version": "v1" }, { "created": "Wed, 27 Jul 2011 20:06:13 GMT", "version": "v2" } ]
2011-08-19
[ [ "Levin", "Eugene", "" ], [ "Rezaeian", "Amir H.", "" ] ]
We show that the long-range rapidity correlations between the produced charged-hadron pairs from two BFKL parton showers generate considerable azimuthal angle correlations. These correlations have no 1/N_c suppression. The effect of gluon saturation on these correlations are discussed and we show that it is important. ...
0903.2822
Andrew Blechman
Andrew E. Blechman
R-symmetric Gauge Mediation and the MRSSM
14 pages, invited Brief Review, submitted to Modern Physics Letters A; v2: replaced Figure 1, updated acknowledgments, fixed typos
Mod.Phys.Lett.A24:633-646,2009
10.1142/S0217732309030795
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This is an invited summary of a seminar talk given at various institutions in the United States and Canada. After a brief introduction, a review of the minimal R-symmetric supersymmetric standard model is given, and the benefits to the flavor sector are discussed. R-symmetric gauge mediation is an attempt to realize ...
[ { "created": "Mon, 16 Mar 2009 18:17:05 GMT", "version": "v1" }, { "created": "Tue, 24 Mar 2009 15:40:35 GMT", "version": "v2" } ]
2009-07-22
[ [ "Blechman", "Andrew E.", "" ] ]
This is an invited summary of a seminar talk given at various institutions in the United States and Canada. After a brief introduction, a review of the minimal R-symmetric supersymmetric standard model is given, and the benefits to the flavor sector are discussed. R-symmetric gauge mediation is an attempt to realize th...
hep-ph/0607197
Walter Grimus
Walter Grimus, Helmut Kuhbock
Fermion masses and mixings in a renormalizable SO(10) x Z_2 GUT
13 pages, 1 figure; material, clarifications and references added, final version for Phys. Lett. B
Phys.Lett.B643:182-189,2006
10.1016/j.physletb.2006.10.038
UWThPh-2006-15
hep-ph
null
We investigate a scenario in a supersymmetric SO(10) Grand Unified Theory in which the fermion mass matrices are generated by renormalizable Yukawa couplings of the $\mathbf{10} \oplus \mathbf{120} \oplus \bar{\mathbf{126}}$ representation of scalars. We reduce the number of parameters by assuming spontaneous CP viol...
[ { "created": "Tue, 18 Jul 2006 13:32:40 GMT", "version": "v1" }, { "created": "Mon, 24 Jul 2006 15:27:15 GMT", "version": "v2" }, { "created": "Thu, 9 Nov 2006 11:55:40 GMT", "version": "v3" } ]
2008-11-26
[ [ "Grimus", "Walter", "" ], [ "Kuhbock", "Helmut", "" ] ]
We investigate a scenario in a supersymmetric SO(10) Grand Unified Theory in which the fermion mass matrices are generated by renormalizable Yukawa couplings of the $\mathbf{10} \oplus \mathbf{120} \oplus \bar{\mathbf{126}}$ representation of scalars. We reduce the number of parameters by assuming spontaneous CP violat...
hep-ph/9806454
Wu Ning
Ning Wu
An electroweak model without Higgs particle
23 pages, no figures, the expansion of hep-ph/9802237
null
null
null
hep-ph
null
In this paper, applying general gauge field theory, we will construct an electroweak model. In this new electroweak model, Higgs mechanism is not used, so no Higgs particle exists in the model. In order to keep the masses of intermediate gauge bosons non-zero, we will introduce two sets of gauge fields. We need a vac...
[ { "created": "Tue, 23 Jun 1998 13:17:44 GMT", "version": "v1" } ]
2007-05-23
[ [ "Wu", "Ning", "" ] ]
In this paper, applying general gauge field theory, we will construct an electroweak model. In this new electroweak model, Higgs mechanism is not used, so no Higgs particle exists in the model. In order to keep the masses of intermediate gauge bosons non-zero, we will introduce two sets of gauge fields. We need a vacuu...
hep-ph/0001068
Sergo Gerasimov
S.B.Gerasimov
Hadron spectroscopy based on relativistic Schr\"odinger-like wave equations
7 pages, Latex, no figures; Talk given at the NUPPAC'99, 13-17 November 1999, Cairo, Egypt
null
null
null
hep-ph
null
Relativistic potential-type equations are proposed which approximately reproduce important features and constraints of field-theoretic models and can be useful tool in hadron spectroscopy. Within this approach, the Regge-trajectory parameters and some properties of hihger radial excitations in the light quark sector ...
[ { "created": "Mon, 10 Jan 2000 16:06:30 GMT", "version": "v1" } ]
2007-05-23
[ [ "Gerasimov", "S. B.", "" ] ]
Relativistic potential-type equations are proposed which approximately reproduce important features and constraints of field-theoretic models and can be useful tool in hadron spectroscopy. Within this approach, the Regge-trajectory parameters and some properties of hihger radial excitations in the light quark sector ar...
hep-ph/9809421
Kaustubh Agashe
Kaustubh Agashe (LBNL and ITS, University of Oregon)
GUT and SUSY Breaking by the Same Field
LaTeX, 14 pages
Phys.Lett.B444:61-67,1998
10.1016/S0370-2693(98)01310-0
LBNL-42271, OITS-659
hep-ph
null
We present a model in which the same modulus field breaks both SUSY and a simple GUT gauge group down to the SM gauge group. The modulus is stabilized by the inverted hierarchy mechanism in a perturbative region so that the model is calculable. This is the first example of this kind in the literature. All mass scales...
[ { "created": "Wed, 16 Sep 1998 21:16:27 GMT", "version": "v1" } ]
2014-11-17
[ [ "Agashe", "Kaustubh", "", "LBNL and ITS, University of Oregon" ] ]
We present a model in which the same modulus field breaks both SUSY and a simple GUT gauge group down to the SM gauge group. The modulus is stabilized by the inverted hierarchy mechanism in a perturbative region so that the model is calculable. This is the first example of this kind in the literature. All mass scales (...
hep-ph/9911370
Jonathan Feng
Jonathan L. Feng, Yosef Nir, Yael Shadmi
Neutrino Parameters, Abelian Flavor Symmetries, and Charged Lepton Flavor Violation
27 pages, refs added, published version
Phys.Rev. D61 (2000) 113005
10.1103/PhysRevD.61.113005
IASSNS-HEP-99-106, WIS-99/36/Nov-DPP
hep-ph hep-ex
null
Neutrino masses and mixings have important implications for models of fermion masses, and, most directly, for the charged lepton sector. We consider supersymmetric Abelian flavor models, where neutrino mass parameters are related to those of charged leptons and sleptons. We show that processes such as \tau to \mu\gam...
[ { "created": "Tue, 16 Nov 1999 00:02:19 GMT", "version": "v1" }, { "created": "Mon, 7 Feb 2000 20:53:20 GMT", "version": "v2" } ]
2009-10-31
[ [ "Feng", "Jonathan L.", "" ], [ "Nir", "Yosef", "" ], [ "Shadmi", "Yael", "" ] ]
Neutrino masses and mixings have important implications for models of fermion masses, and, most directly, for the charged lepton sector. We consider supersymmetric Abelian flavor models, where neutrino mass parameters are related to those of charged leptons and sleptons. We show that processes such as \tau to \mu\gamma...
hep-ph/9904426
Ken-iti Izawa
K.-I. Izawa and T. Yanagida
Dynamical Inflation and Vacuum Selection
5 pages, latex
Prog.Theor.Phys. 103 (2000) 1077-1079
10.1143/PTP.103.1077
UT-843
hep-ph
null
We consider an inflationary scenario where the energy scale of inflation stems from gauge theory dynamics. We point out its generic implications on vacuum selection of our universe, in particular, on determination of spacetime symmetries including its dimensions.
[ { "created": "Thu, 22 Apr 1999 09:20:48 GMT", "version": "v1" } ]
2009-10-31
[ [ "Izawa", "K. -I.", "" ], [ "Yanagida", "T.", "" ] ]
We consider an inflationary scenario where the energy scale of inflation stems from gauge theory dynamics. We point out its generic implications on vacuum selection of our universe, in particular, on determination of spacetime symmetries including its dimensions.
hep-ph/0605329
Ignasi Rosell
I. Rosell (Valencia U. & Valencia U., IFIC)
Quantum loops in the Resonance Chiral Theory: improving the vector form factor
Talk given at the International Workshop e+e- Collisions from phi to J/psi, 27th February-2nd March (2006), Novosibirsk (Russia)
null
10.1016/j.nuclphysbps.2006.09.077
IFIC/06-19; FTUV/06-30-05
hep-ph
null
Quantum loops in the Resonance Chiral Theory are needed to improve the implementation of non-perturbative QCD. Furthermore, the one-loop computations can predict chiral low-energy couplings at next-to-leading order, a very appealing task. We present a first calculation of the vector form factor of the pion at sublead...
[ { "created": "Tue, 30 May 2006 09:12:55 GMT", "version": "v1" } ]
2009-11-11
[ [ "Rosell", "I.", "", "Valencia U. & Valencia U., IFIC" ] ]
Quantum loops in the Resonance Chiral Theory are needed to improve the implementation of non-perturbative QCD. Furthermore, the one-loop computations can predict chiral low-energy couplings at next-to-leading order, a very appealing task. We present a first calculation of the vector form factor of the pion at subleadin...
hep-ph/0607174
Yang Bai
Thomas Appelquist, Yang Bai and Maurizio Piai
Neutrinos and SU(3) Family Gauge Symmetry
9 pages, 3 tables; a comment added to clarify the effects of additional Yukawa operators; final version in PRD
Phys.Rev.D74:076001,2006
10.1103/PhysRevD.74.076001
null
hep-ph
null
We include the standard-model (SM) leptons in a recently proposed framework for the generation of quark mass ratios and Cabibbo-Kobayashi-Maskawa (CKM) mixing angles from an SU(3) family gauge interaction. The set of SM-singlet scalar fields describing the spontaneous breaking is the same as employed for the quark se...
[ { "created": "Fri, 14 Jul 2006 18:36:16 GMT", "version": "v1" }, { "created": "Mon, 9 Oct 2006 21:02:48 GMT", "version": "v2" } ]
2008-11-26
[ [ "Appelquist", "Thomas", "" ], [ "Bai", "Yang", "" ], [ "Piai", "Maurizio", "" ] ]
We include the standard-model (SM) leptons in a recently proposed framework for the generation of quark mass ratios and Cabibbo-Kobayashi-Maskawa (CKM) mixing angles from an SU(3) family gauge interaction. The set of SM-singlet scalar fields describing the spontaneous breaking is the same as employed for the quark sect...
0912.4377
Heidi Virtanen
Jukka Maalampi, Iiro Vilja, Heidi Virtanen
Thermal leptogenesis in a 5D split fermion scenario with bulk neutrinos
22 pages, 9 figures
Phys.Rev.D82:013009,2010
10.1103/PhysRevD.82.013009
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the thermal leptogenesis in a hybrid model, which combines the so called split fermion model and the bulk neutrino model defined in five dimensional spacetime. This model predicts the existence of a heavy neutrino pair nearly degenerate in mass, whose decays might generate a CP violation large enough for cre...
[ { "created": "Tue, 22 Dec 2009 11:40:12 GMT", "version": "v1" }, { "created": "Mon, 2 Aug 2010 10:45:38 GMT", "version": "v2" } ]
2014-11-20
[ [ "Maalampi", "Jukka", "" ], [ "Vilja", "Iiro", "" ], [ "Virtanen", "Heidi", "" ] ]
We study the thermal leptogenesis in a hybrid model, which combines the so called split fermion model and the bulk neutrino model defined in five dimensional spacetime. This model predicts the existence of a heavy neutrino pair nearly degenerate in mass, whose decays might generate a CP violation large enough for creat...
2102.11608
Jean-Pierre Leroy
Alain Le Yaouanc, Jean-Pierre Leroy, Patrick Roudeau
A model for NL and SL decays by $\overline{B}^0 \to D^{**}$ transitions with $BR(j=1/2) \ll BR(j=3/2)$ using the $LLSW$ scheme
revised version with modified formatting, references and comments (section II.B.c) added and errors corrected in the formulas of appendix (no impact on the numbers quoted in main text)
null
null
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
We present a model for the vector and axial form factors of the transitions $\overline{B}^0 \to D^{**}$ in good agreement with the presently available data and based on the present theoretical knowledge, combining a) the safe lattice QCD predictions at $m_Q=\infty$ and $w=1$ ; b) the predictions at general $w$ of a r...
[ { "created": "Tue, 23 Feb 2021 10:42:01 GMT", "version": "v1" }, { "created": "Fri, 7 May 2021 10:38:11 GMT", "version": "v2" } ]
2021-05-10
[ [ "Yaouanc", "Alain Le", "" ], [ "Leroy", "Jean-Pierre", "" ], [ "Roudeau", "Patrick", "" ] ]
We present a model for the vector and axial form factors of the transitions $\overline{B}^0 \to D^{**}$ in good agreement with the presently available data and based on the present theoretical knowledge, combining a) the safe lattice QCD predictions at $m_Q=\infty$ and $w=1$ ; b) the predictions at general $w$ of a rel...
0712.3933
Qi-Shu Yan
A.G. Akeroyd, Abdesslam Arhrib, Qi-Shu Yan
Charged Higgs bosons in the Next-to MSSM (NMSSM)
20 pages, 22 eps figures, more reference added
Eur.Phys.J.C55:653-665,2008
10.1140/epjc/s10052-008-0617-3
null
hep-ph
null
The charged Higgs boson decays $H^\pm\to W^\pm A_1$ and $H^\pm\to W^\pm h_i$ are studied in the framework of the next-to Minimal Supersymmetric Standard Model (NMSSM). It is found that the decay rate for $H^\pm\to W^\pm A_1$ can exceed the rates for the $\tau^\pm\nu$ and $tb$ channels both below and above the top-bot...
[ { "created": "Sun, 23 Dec 2007 18:07:05 GMT", "version": "v1" }, { "created": "Sat, 12 Jan 2008 16:58:13 GMT", "version": "v2" } ]
2008-11-26
[ [ "Akeroyd", "A. G.", "" ], [ "Arhrib", "Abdesslam", "" ], [ "Yan", "Qi-Shu", "" ] ]
The charged Higgs boson decays $H^\pm\to W^\pm A_1$ and $H^\pm\to W^\pm h_i$ are studied in the framework of the next-to Minimal Supersymmetric Standard Model (NMSSM). It is found that the decay rate for $H^\pm\to W^\pm A_1$ can exceed the rates for the $\tau^\pm\nu$ and $tb$ channels both below and above the top-botto...
2408.06041
Leonid Slad
L.M.Slad
Logic and numbers related to solar neutrinos
15 pages. arXiv admin note: text overlap with arXiv:2301.03366
Ann.d.Phys. 536 (2024) 2400168
10.1002/andp.202400168
null
hep-ph astro-ph.SR hep-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, first of all, we analyze a number of hidden aspects of the concept of particle oscillations. The key element of this concept, which do not comply with the principle of least action, is the notion of a mixture of particles, introduced by Gell-Mann and Pais for neutral $K$-mesons. It has been proven that ...
[ { "created": "Mon, 12 Aug 2024 10:18:00 GMT", "version": "v1" } ]
2024-08-13
[ [ "Slad", "L. M.", "" ] ]
In this work, first of all, we analyze a number of hidden aspects of the concept of particle oscillations. The key element of this concept, which do not comply with the principle of least action, is the notion of a mixture of particles, introduced by Gell-Mann and Pais for neutral $K$-mesons. It has been proven that th...
2211.01420
Jiang-Hao Yu
Zhe Ren, Jiang-Hao Yu
A Complete Set of the Dimension-8 Green's Basis Operators in the Standard Model Effective Field Theory
65 pages, 4 tables, updated references and acknowledgements
null
null
null
hep-ph hep-th
http://creativecommons.org/licenses/by/4.0/
We present a complete and independent off-shell Green's basis of the dimension 8 operators in the Standard Model effective field theory (SMEFT). We propose an off-shell amplitude formalism such that this new kind of amplitudes has a one-to-one correspondence to general operators carrying all kinds of redundancies. Th...
[ { "created": "Wed, 2 Nov 2022 18:26:03 GMT", "version": "v1" }, { "created": "Mon, 21 Nov 2022 15:35:55 GMT", "version": "v2" } ]
2022-11-22
[ [ "Ren", "Zhe", "" ], [ "Yu", "Jiang-Hao", "" ] ]
We present a complete and independent off-shell Green's basis of the dimension 8 operators in the Standard Model effective field theory (SMEFT). We propose an off-shell amplitude formalism such that this new kind of amplitudes has a one-to-one correspondence to general operators carrying all kinds of redundancies. The ...
2103.00212
Mohammad Javad Kazemi
Mohammad Javad Kazemi and Shehu AbdusSalam
Electroweak Phase Transition in an Inert Complex Triplet Model
Accepted by Physical Review D. New references are added
Phys. Rev. D 103, 075012 (2021)
10.1103/PhysRevD.103.075012
null
hep-ph gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the dynamics of electroweak phase transition in a simple extension of the Standard Model where the Higgs sector is extended by adding an $SU(2)_L$-triplet with hypercharge Y=2. By making random scans over the parameters of the model, we show that there are regions consistent with constraints from collider ex...
[ { "created": "Sat, 27 Feb 2021 13:33:53 GMT", "version": "v1" }, { "created": "Mon, 5 Apr 2021 12:30:30 GMT", "version": "v2" } ]
2021-04-21
[ [ "Kazemi", "Mohammad Javad", "" ], [ "AbdusSalam", "Shehu", "" ] ]
We study the dynamics of electroweak phase transition in a simple extension of the Standard Model where the Higgs sector is extended by adding an $SU(2)_L$-triplet with hypercharge Y=2. By making random scans over the parameters of the model, we show that there are regions consistent with constraints from collider expe...
hep-ph/0012285
Jean-Michel Levy
J.-M. Levy
On the group velocity of oscillating neutrino states and the equal velocity assumption
8 pages, latex, no figures
null
null
LPNHE 00-15
hep-ph
null
In a two flavour world, the usual equal $p$, equal $E$, or equal $v$ assumptions used to derive the neutrino oscillation length can be replaced by a specific definition of the velocity of the oscillating state which, unlike those assumptions, is compatible with exact production kinematics. This definition is further ...
[ { "created": "Thu, 21 Dec 2000 12:47:10 GMT", "version": "v1" } ]
2007-05-23
[ [ "Levy", "J. -M.", "" ] ]
In a two flavour world, the usual equal $p$, equal $E$, or equal $v$ assumptions used to derive the neutrino oscillation length can be replaced by a specific definition of the velocity of the oscillating state which, unlike those assumptions, is compatible with exact production kinematics. This definition is further vi...
1707.08257
Angel Sanchez
Gabriella Piccinelli and Angel Sanchez
Magnetic Field Effect on Charged Scalar Pair Creation at Finite Temperature
12 pages, 8 figures
Phys. Rev. D 96, 076014 (2017)
10.1103/PhysRevD.96.076014
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work we explore the effects of a weak magnetic field and a thermal bath on the decay process of a neutral scalar boson into two charged scalar bosons. Our findings indicate that magnetic field inhibits while temperature enhances the pair production. The employed formalism allows us to isolate the contribution...
[ { "created": "Wed, 26 Jul 2017 00:17:57 GMT", "version": "v1" } ]
2017-11-01
[ [ "Piccinelli", "Gabriella", "" ], [ "Sanchez", "Angel", "" ] ]
In this work we explore the effects of a weak magnetic field and a thermal bath on the decay process of a neutral scalar boson into two charged scalar bosons. Our findings indicate that magnetic field inhibits while temperature enhances the pair production. The employed formalism allows us to isolate the contribution o...
2009.10116
Sanjoy Mandal
Sanjoy Mandal, Rahul Srivastava and Jos\'e W. F. Valle
Electroweak symmetry breaking in the inverse seesaw mechanism
29 pages, 13 figures
JHEP 03(2021) 212
10.1007/JHEP03(2021)212
IFIC/20-XXX
hep-ph
http://creativecommons.org/licenses/by/4.0/
We investigate the stability of Higgs potential in inverse seesaw models. We derive the full two-loop RGEs of the relevant parameters, such as the quartic Higgs self-coupling, taking thresholds into account. We find that for relatively large Yukawa couplings the Higgs quartic self-coupling goes negative well below th...
[ { "created": "Mon, 21 Sep 2020 18:19:37 GMT", "version": "v1" }, { "created": "Mon, 3 May 2021 10:57:05 GMT", "version": "v2" } ]
2021-05-04
[ [ "Mandal", "Sanjoy", "" ], [ "Srivastava", "Rahul", "" ], [ "Valle", "José W. F.", "" ] ]
We investigate the stability of Higgs potential in inverse seesaw models. We derive the full two-loop RGEs of the relevant parameters, such as the quartic Higgs self-coupling, taking thresholds into account. We find that for relatively large Yukawa couplings the Higgs quartic self-coupling goes negative well below the ...
hep-ph/0506319
Igor Obukhovsky
I.T. Obukhovsky, D. Fedorov, Amand Faessler, Th. Gutsche, V.E. Lyubovitskij
Quark model description of quasi-elastic pion knockout from the proton at JLAB
15 pages, 4 figures, to be published in Phys. Lett. B
Phys.Lett.B634:220-226,2006
10.1016/j.physletb.2006.01.038
null
hep-ph
null
The interference term between s- and t-pole contributions to the p(e,e' pi+)n cross section is evaluated on the basis of the constituent quark model. It is shown that the contribution of baryon s-poles can be modeled by a nonlocal extension of the Kroll-Rudermann contact term. This contribution is in a destructive in...
[ { "created": "Thu, 30 Jun 2005 10:27:10 GMT", "version": "v1" }, { "created": "Mon, 4 Jul 2005 14:20:34 GMT", "version": "v2" }, { "created": "Mon, 9 Jan 2006 10:55:39 GMT", "version": "v3" } ]
2014-11-18
[ [ "Obukhovsky", "I. T.", "" ], [ "Fedorov", "D.", "" ], [ "Faessler", "Amand", "" ], [ "Gutsche", "Th.", "" ], [ "Lyubovitskij", "V. E.", "" ] ]
The interference term between s- and t-pole contributions to the p(e,e' pi+)n cross section is evaluated on the basis of the constituent quark model. It is shown that the contribution of baryon s-poles can be modeled by a nonlocal extension of the Kroll-Rudermann contact term. This contribution is in a destructive inte...
1011.6368
Mu-Chun Chen
Mu-Chun Chen, Jinrui Huang
Non-universal, Non-anomalous U(1)' in a Model with Anomaly Mediated SUSY Breaking
Talk presented at the 35th International Conference of High Energy Physics - ICHEP2010, July 22-28, 2010, Paris France
PoS ICHEP2010:386,2010
null
UCI-TR-2010-31
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We construct a Minimum Supersymmetry Standard Model expanded by a non-anomalous family (NAF) U(1)'_{NAF} gauge symmetry. All gauge anomalies are cancelled with no additional exotics other than the three right-handed neutrinos. The FI D-terms associated with the U(1)'_{NAF} symmetry lead to additional positive contrib...
[ { "created": "Mon, 29 Nov 2010 20:51:51 GMT", "version": "v1" } ]
2011-08-09
[ [ "Chen", "Mu-Chun", "" ], [ "Huang", "Jinrui", "" ] ]
We construct a Minimum Supersymmetry Standard Model expanded by a non-anomalous family (NAF) U(1)'_{NAF} gauge symmetry. All gauge anomalies are cancelled with no additional exotics other than the three right-handed neutrinos. The FI D-terms associated with the U(1)'_{NAF} symmetry lead to additional positive contribut...
hep-ph/9910356
Willy van Neerven
W.L. van Neerven
Heavy Flavor Contributions to QCD Sum Rules and the Running Coupling Constant
10 pages, LaTeX, To appear in the proceedings of the International Workshop on Hadron Physics `Effective Theories of Low Energy QCD', Coimbra, Portugal, September 10-15, 1999
null
10.1063/1.1303021
null
hep-ph
null
We have calculated first and second order corrections to several sum rules measured in deep inelastic lepton-hadron scattering. These corrections, which are due to heavy flavors only, are compared with the existing perturbation series which is computed for massless quarks up to third order in the strong coupling cons...
[ { "created": "Fri, 15 Oct 1999 08:32:47 GMT", "version": "v1" } ]
2009-10-31
[ [ "van Neerven", "W. L.", "" ] ]
We have calculated first and second order corrections to several sum rules measured in deep inelastic lepton-hadron scattering. These corrections, which are due to heavy flavors only, are compared with the existing perturbation series which is computed for massless quarks up to third order in the strong coupling consta...
hep-ph/9406236
null
J. L. Goity and W. Roberts
Soft Pion Emission in Semileptonic $B$-Meson Decays
41 pages, uses revtex, epsf. 16 uuencoded postscript figures appended after `\end{document}
Phys.Rev.D51:3459-3477,1995
10.1103/PhysRevD.51.3459
null
hep-ph
null
An analysis of semileptonic decays of $B$ mesons with the emission of a single soft pion is presented in the framework of the heavy-quark limit using an effective Lagrangian which implements chiral and heavy-quark symmetries. The analysis is performed at leading order of the chiral and inverse heavy mass expansions. ...
[ { "created": "Mon, 6 Jun 1994 18:20:44 GMT", "version": "v1" } ]
2014-11-17
[ [ "Goity", "J. L.", "" ], [ "Roberts", "W.", "" ] ]
An analysis of semileptonic decays of $B$ mesons with the emission of a single soft pion is presented in the framework of the heavy-quark limit using an effective Lagrangian which implements chiral and heavy-quark symmetries. The analysis is performed at leading order of the chiral and inverse heavy mass expansions. In...
2002.11547
Christopher T. Hill
Christopher T. Hill
Composite Higgs Bosons and Mini Black Holes
Corrections and additional details
null
null
FERMILAB-PUB-20-086-T
hep-ph gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Pairs of standard model fermions can annihilate to produce mini black holes with gauge quantum numbers of the Higgs boson at $M_{Planck}$. This leads to a Nambu-Jona-Lasinio model at the Planck scale with strong coupling which binds fermion pairs into Higgs fields. At critical coupling the renormalization group dress...
[ { "created": "Wed, 26 Feb 2020 15:00:07 GMT", "version": "v1" }, { "created": "Thu, 27 Feb 2020 17:32:29 GMT", "version": "v2" }, { "created": "Mon, 2 Mar 2020 16:00:48 GMT", "version": "v3" }, { "created": "Wed, 22 Jul 2020 08:37:18 GMT", "version": "v4" } ]
2020-07-23
[ [ "Hill", "Christopher T.", "" ] ]
Pairs of standard model fermions can annihilate to produce mini black holes with gauge quantum numbers of the Higgs boson at $M_{Planck}$. This leads to a Nambu-Jona-Lasinio model at the Planck scale with strong coupling which binds fermion pairs into Higgs fields. At critical coupling the renormalization group dresses...
hep-ph/9608205
Hector DE Vega
D. Boyanovsky, H. J. de Vega, R. Holman and J. F. J. Salgado
Analytic and Numerical Study of Preheating Dynamics
Latex file, 52 pages and 24 figures in .ps files. Minor changes. To appear in Physical Review D, 15 December 1996
Phys.Rev. D54 (1996) 7570-7598
10.1103/PhysRevD.54.7570
PITT-96-; CMU-HEP-96-; LPTHE-Paris-96-32
hep-ph astro-ph hep-th
null
We analyze the phenomenon of preheating,i.e. explosive particle production due to parametric amplification of quantum fluctuations in the unbroken case, or spinodal instabilities in the broken phase, using the Minkowski space $O(N)$ vector model in the large $N$ limit to study the non-perturbative issues involved. We...
[ { "created": "Thu, 1 Aug 1996 15:42:17 GMT", "version": "v1" }, { "created": "Tue, 8 Oct 1996 16:32:07 GMT", "version": "v2" } ]
2009-10-28
[ [ "Boyanovsky", "D.", "" ], [ "de Vega", "H. J.", "" ], [ "Holman", "R.", "" ], [ "Salgado", "J. F. J.", "" ] ]
We analyze the phenomenon of preheating,i.e. explosive particle production due to parametric amplification of quantum fluctuations in the unbroken case, or spinodal instabilities in the broken phase, using the Minkowski space $O(N)$ vector model in the large $N$ limit to study the non-perturbative issues involved. We g...
hep-ph/0206198
Fernando Silveira Navarra
R.D. Matheus, F.S. Navarra, M. Nielsen and R. Rodrigues da Silva
The $J/\psi D D$ Vertex in QCD Sum Rules
11 pages, Latex, 4 eps figures
Phys.Lett. B541 (2002) 265-272
10.1016/S0370-2693(02)02259-1
null
hep-ph
null
The $J/\psi D D$ form factor is evaluated in a QCD sum rule calculation for both $D$ and $J/\psi$ off-shell mesons. We study the double Borel sum rule for the three point function of two pseudoscalar and one vector meson current. We find that the momentum dependence of the form factors is different if the $D$ or the ...
[ { "created": "Thu, 20 Jun 2002 23:00:39 GMT", "version": "v1" } ]
2009-11-07
[ [ "Matheus", "R. D.", "" ], [ "Navarra", "F. S.", "" ], [ "Nielsen", "M.", "" ], [ "da Silva", "R. Rodrigues", "" ] ]
The $J/\psi D D$ form factor is evaluated in a QCD sum rule calculation for both $D$ and $J/\psi$ off-shell mesons. We study the double Borel sum rule for the three point function of two pseudoscalar and one vector meson current. We find that the momentum dependence of the form factors is different if the $D$ or the $J...
hep-ph/0406017
Radovan Dermisek
Radovan Dermisek
Neutrino Masses and Mixing, Quark-lepton Symmetry and Strong Right-handed Neutrino Hierarchy
7 pages
Phys.Rev. D70 (2004) 073016
10.1103/PhysRevD.70.073016
UCD-04-21
hep-ph
null
Assuming the same form of all mass matrices as motivated by quark-lepton symmetry, we discuss conditions under which bi-large mixing in the lepton sector can be obtained with a minimal amount of fine tuning requirements for possible models. We assume hierarchical mass matrices, dominated by the 3-3 element, with off-...
[ { "created": "Tue, 1 Jun 2004 17:32:50 GMT", "version": "v1" }, { "created": "Thu, 22 Jul 2004 01:54:39 GMT", "version": "v2" }, { "created": "Tue, 26 Oct 2004 23:32:57 GMT", "version": "v3" } ]
2009-11-10
[ [ "Dermisek", "Radovan", "" ] ]
Assuming the same form of all mass matrices as motivated by quark-lepton symmetry, we discuss conditions under which bi-large mixing in the lepton sector can be obtained with a minimal amount of fine tuning requirements for possible models. We assume hierarchical mass matrices, dominated by the 3-3 element, with off-di...