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1911.02033
Antonio Enrique C\'arcamo Hern\'andez
Carolina Arbel\'aez, A. E. C\'arcamo Hern\'andez, Ricardo Cepedello, Sergey Kovalenko, Ivan Schmidt
Sequentially loop supressed fermion masses from a unique discrete symmetry
19 pages, 10 figures. Matches published version in JHEP
JHEP 06 (2020) 043
10.1007/JHEP06(2020)043
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a systematic and renormalizable sequential loop suppression mechanism to generate the hierarchy of the Standard Model fermion masses from one discrete symmetry. The discrete symmetry is sequentially softly broken in order to generate one-loop level masses for the bottom, charm, tau and muon leptons and two...
[ { "created": "Tue, 5 Nov 2019 19:00:21 GMT", "version": "v1" }, { "created": "Fri, 4 Sep 2020 19:03:06 GMT", "version": "v2" } ]
2020-09-08
[ [ "Arbeláez", "Carolina", "" ], [ "Hernández", "A. E. Cárcamo", "" ], [ "Cepedello", "Ricardo", "" ], [ "Kovalenko", "Sergey", "" ], [ "Schmidt", "Ivan", "" ] ]
We propose a systematic and renormalizable sequential loop suppression mechanism to generate the hierarchy of the Standard Model fermion masses from one discrete symmetry. The discrete symmetry is sequentially softly broken in order to generate one-loop level masses for the bottom, charm, tau and muon leptons and two-l...
hep-ph/0011346
Pankaj Agrawal
Pankaj Agrawal and Glenn Ladinsky
Production of Two Photons and a Jet Through Gluon Fusion
9 pages, 4 postscript figures
Phys.Rev. D63 (2001) 117504
10.1103/PhysRevD.63.117504
IP/BBSR/99-11
hep-ph
null
We have computed the cross-section and distributions for the production of two photons and a jet via the process $g g \to \gamma\gamma g$. In the Standard Model, this process occurs at the one-loop level through pentagon and box diagrams. We show that at the LHC this is a significant mechanism for the production of t...
[ { "created": "Tue, 28 Nov 2000 14:29:08 GMT", "version": "v1" } ]
2009-10-31
[ [ "Agrawal", "Pankaj", "" ], [ "Ladinsky", "Glenn", "" ] ]
We have computed the cross-section and distributions for the production of two photons and a jet via the process $g g \to \gamma\gamma g$. In the Standard Model, this process occurs at the one-loop level through pentagon and box diagrams. We show that at the LHC this is a significant mechanism for the production of the...
hep-ph/0409094
Johan Alwall
J. Alwall and J. Rathsman
Improved description of charged Higgs boson production at hadron colliders
21 pages, 9 figures. Revised with updated discussion and references
JHEP 0412:050,2004
10.1088/1126-6708/2004/12/050
TSL/ISV-2004-0282
hep-ph
null
We present a new method for matching the two twin-processes gb->H+/-t and gg->H+/-tb in Monte Carlo event generators. The matching is done by defining a double-counting term, which is used to generate events that are subtracted from the sum of these two twin-processes. In this way we get a smooth transition between t...
[ { "created": "Wed, 8 Sep 2004 16:04:24 GMT", "version": "v1" }, { "created": "Thu, 13 Jan 2005 10:01:49 GMT", "version": "v2" } ]
2011-01-27
[ [ "Alwall", "J.", "" ], [ "Rathsman", "J.", "" ] ]
We present a new method for matching the two twin-processes gb->H+/-t and gg->H+/-tb in Monte Carlo event generators. The matching is done by defining a double-counting term, which is used to generate events that are subtracted from the sum of these two twin-processes. In this way we get a smooth transition between the...
2406.12691
Eugene Levin
Alex Kovner (UCONN), Eugene Levin (Tel Aviv U.) and Michael Lublinsky (Ben Gurion U.)
High energy scattering in the Unitary Toy Model
30 pp. 5 figures in pdf files
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We continue exploring the Unitary Toy Model (UTM) as a playground for high energy collisions in QCD. Our new approach is based on the diagonalization of the evolution Hamiltonian. Part of the spectrum can be identified with intercepts of dressed Pomerons. Analogously to QCD, a multi-Pomeron expansion of the $S$-matri...
[ { "created": "Tue, 18 Jun 2024 15:04:48 GMT", "version": "v1" } ]
2024-06-19
[ [ "Kovner", "Alex", "", "UCONN" ], [ "Levin", "Eugene", "", "Tel Aviv U." ], [ "Lublinsky", "Michael", "", "Ben Gurion U." ] ]
We continue exploring the Unitary Toy Model (UTM) as a playground for high energy collisions in QCD. Our new approach is based on the diagonalization of the evolution Hamiltonian. Part of the spectrum can be identified with intercepts of dressed Pomerons. Analogously to QCD, a multi-Pomeron expansion of the $S$-matrix ...
1812.06106
Kirill Boguslavski
Kirill Boguslavski, Aleksi Kurkela, Tuomas Lappi and Jarkko Peuron
Probing spectral properties of the QGP with real-time lattice simulations
5 pages, 2 figures, Proceedings of the International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions - Hard Probes 2018
null
null
null
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a new method to obtain spectral properties of a non-Abelian gauge theory in the region where occupation numbers are high. The method to measure the (single-particle) spectral function is based on linear response theory and classical-statistical lattice simulations. Although we apply it to a system far from...
[ { "created": "Fri, 14 Dec 2018 19:00:22 GMT", "version": "v1" } ]
2018-12-18
[ [ "Boguslavski", "Kirill", "" ], [ "Kurkela", "Aleksi", "" ], [ "Lappi", "Tuomas", "" ], [ "Peuron", "Jarkko", "" ] ]
We present a new method to obtain spectral properties of a non-Abelian gauge theory in the region where occupation numbers are high. The method to measure the (single-particle) spectral function is based on linear response theory and classical-statistical lattice simulations. Although we apply it to a system far from e...
1706.08522
Masahito Yamazaki
Yasunori Nomura, Taizan Watari, Masahito Yamazaki
Pure Natural Inflation
4 pages, 3 figures, published version
Phys. Lett. B 776, 227-230 (2018)
10.1016/j.physletb.2017.11.052
IPMU17-0092
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We point out that a simple inflationary model in which the axionic inflaton couples to a pure Yang-Mills theory may give the scalar spectral index (n_s) and tensor-to-scalar ratio (r) in complete agreement with the current observational data.
[ { "created": "Mon, 26 Jun 2017 18:00:00 GMT", "version": "v1" }, { "created": "Mon, 27 Nov 2017 02:23:15 GMT", "version": "v2" } ]
2017-12-12
[ [ "Nomura", "Yasunori", "" ], [ "Watari", "Taizan", "" ], [ "Yamazaki", "Masahito", "" ] ]
We point out that a simple inflationary model in which the axionic inflaton couples to a pure Yang-Mills theory may give the scalar spectral index (n_s) and tensor-to-scalar ratio (r) in complete agreement with the current observational data.
1609.01355
Joaquim Matias
Bernat Capdevila (Barcelona, Autonoma U. and IFAE), Sebastien Descotes-Genon (Orsay, LPT), Lars Hofer (ICC, Barcelona U.), Joaquim Matias (Barcelona, Autonoma U. and IFAE), Javier Virto (Siegen U.)
$B \to K^*(\to K\pi) \ell^+\ell^-$ theory and the global picture: What's next?
10 pages, talk presented at the Fourth Annual Large Hadron Collider Physics conference, 13-18 June 2016, Lund, Sweden
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The present status of the LHC anomalies found in exclusive semileptonic $b\to s\ell^+\ell^-$ decays is discussed with special emphasis on the exclusive 4-body angular distribution $B \to K^*(\to K\pi)\ell^+\ell^-$. The treatment of hadronic uncertainties in this mode is briefly reviewed, and some of the analyses in t...
[ { "created": "Tue, 6 Sep 2016 00:46:58 GMT", "version": "v1" } ]
2016-09-07
[ [ "Capdevila", "Bernat", "", "Barcelona, Autonoma U. and IFAE" ], [ "Descotes-Genon", "Sebastien", "", "Orsay, LPT" ], [ "Hofer", "Lars", "", "ICC, Barcelona U." ], [ "Matias", "Joaquim", "", "Barcelona, Autonoma U. and IFAE" ], [ "...
The present status of the LHC anomalies found in exclusive semileptonic $b\to s\ell^+\ell^-$ decays is discussed with special emphasis on the exclusive 4-body angular distribution $B \to K^*(\to K\pi)\ell^+\ell^-$. The treatment of hadronic uncertainties in this mode is briefly reviewed, and some of the analyses in the...
1403.1710
Hiroshi Okada
Seungwon Baek, Hiroshi Okada
7 keV Dark Matter as X-ray Line Signal in Radiative Neutrino Model
7 pages, 2 figures, 2 tables: references are added
null
null
KIAS-O14001
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study a light dark matter in a radiative neutrino model to explain the X-ray line signal at about $3.5$ keV recently reported by XMN-Newton X-ray observatory using data of various galaxy clusters and Andromeda galaxy. The signal requires very tiny mixing between the dark matter and an active neutrino; $\sin^2 2\th...
[ { "created": "Fri, 7 Mar 2014 10:24:54 GMT", "version": "v1" }, { "created": "Thu, 20 Mar 2014 04:33:48 GMT", "version": "v2" } ]
2014-03-21
[ [ "Baek", "Seungwon", "" ], [ "Okada", "Hiroshi", "" ] ]
We study a light dark matter in a radiative neutrino model to explain the X-ray line signal at about $3.5$ keV recently reported by XMN-Newton X-ray observatory using data of various galaxy clusters and Andromeda galaxy. The signal requires very tiny mixing between the dark matter and an active neutrino; $\sin^2 2\thet...
2210.05380
Roland E. Allen
Bailey Tallman, Alexandra Boone, Caden LaFontaine, Trevor Croteau, Quinn Ballard, Sabrina Hernandez, Spencer Ellis, Adhithya Vijayakumarm, Fiona Lopez, Samuel Apata, Jehu Martinez, and Roland Allen
Indirect detection, direct detection, and collider detection cross-sections for a 70 GeV dark matter WIMP
4 pages, proceedings of ICHEP 2022
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Assuming a dark matter fraction $\Omega_{DM} = 0.27$ and a reduced Hubble constant $h = 0.73$, we obtain a value of 70 GeV/c$^2$ for the mass of the dark matter WIMP we have previously proposed. We also obtain a value for the annihilation cross section given by $\langle \sigma_{ann} v \rangle = 1.19 \times 10^{-26} $...
[ { "created": "Sat, 8 Oct 2022 23:07:36 GMT", "version": "v1" } ]
2022-10-12
[ [ "Tallman", "Bailey", "" ], [ "Boone", "Alexandra", "" ], [ "LaFontaine", "Caden", "" ], [ "Croteau", "Trevor", "" ], [ "Ballard", "Quinn", "" ], [ "Hernandez", "Sabrina", "" ], [ "Ellis", "Spencer", "" ],...
Assuming a dark matter fraction $\Omega_{DM} = 0.27$ and a reduced Hubble constant $h = 0.73$, we obtain a value of 70 GeV/c$^2$ for the mass of the dark matter WIMP we have previously proposed. We also obtain a value for the annihilation cross section given by $\langle \sigma_{ann} v \rangle = 1.19 \times 10^{-26} $ c...
hep-ph/0211406
Barbot Cyrille
Cyrille Barbot and Manuel Drees
Detailed analysis of the decay spectrum of a super-heavy X particle
62 pages, 25 figures, new references added, new footnote p.9 on the validity of DGLAP equations in a broken gauge theorie like SU(2)*U(1). Accepted for publication in Astroparticle Physics
Astropart.Phys.20:5-44,2003
10.1016/S0927-6505(03)00134-8
null
hep-ph astro-ph
null
Decays of superheavy X particles with mass M_X ~ 10^12 - 10^16 GeV have been proposed as origin of the observed ultra high energy cosmic rays (UHECR). We describe in detail the physics involved in the different steps of the decay of such a particle. In particular, we give for the first time the complete set of splitt...
[ { "created": "Tue, 26 Nov 2002 12:21:05 GMT", "version": "v1" }, { "created": "Fri, 7 Feb 2003 14:52:45 GMT", "version": "v2" } ]
2014-11-17
[ [ "Barbot", "Cyrille", "" ], [ "Drees", "Manuel", "" ] ]
Decays of superheavy X particles with mass M_X ~ 10^12 - 10^16 GeV have been proposed as origin of the observed ultra high energy cosmic rays (UHECR). We describe in detail the physics involved in the different steps of the decay of such a particle. In particular, we give for the first time the complete set of splittin...
hep-ph/0511269
Xian-Qiao Yu
Xian-Qiao Yu, Ying Li and Cai-Dian L\"u
Study of $B_{s}\to \pi \rho$ decays in the perturbative QCD approach
6 pages, 3 figures
Phys.Rev.D73:017501,2006
10.1103/PhysRevD.73.017501
null
hep-ph
null
In this note, we calculate the branching ratio and CP asymmetry parameters of $B_s\to\pi\rho$ in the framework of perturbative QCD approach based on $k_T$ factorization. This decay can occur only via annihilation diagrams in the Standard Model. We find that (a)the charge averaged $Br(B_s\to\pi^{+}\rho^{-}+\pi^{-}\rho...
[ { "created": "Wed, 23 Nov 2005 12:51:00 GMT", "version": "v1" }, { "created": "Wed, 11 Jan 2006 09:52:18 GMT", "version": "v2" } ]
2008-11-26
[ [ "Yu", "Xian-Qiao", "" ], [ "Li", "Ying", "" ], [ "Lü", "Cai-Dian", "" ] ]
In this note, we calculate the branching ratio and CP asymmetry parameters of $B_s\to\pi\rho$ in the framework of perturbative QCD approach based on $k_T$ factorization. This decay can occur only via annihilation diagrams in the Standard Model. We find that (a)the charge averaged $Br(B_s\to\pi^{+}\rho^{-}+\pi^{-}\rho^{...
1605.05171
Marco Cardoso
Pedro Bicudo, Marco Cardoso, Felipe J. Llanes-Estrada, Tim Van Cauteren
Mapping chiral symmetry breaking in the excited baryon spectrum
22 pages, 16 figures, submitted to Phys. Rev. D
Phys. Rev. D 94, 054006 (2016)
10.1103/PhysRevD.94.054006
INT-PUB-16-013
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the conjectured "Insensitivity to Chiral Symmetry Breaking" in the highly excited light baryon spectrum. While the experimental spectrum is being measured at JLab and CBELSA/TAPS, this insensitivity remains to be computed theoretically in detail. As the only existing option to have both confinement, highly e...
[ { "created": "Tue, 17 May 2016 14:05:20 GMT", "version": "v1" } ]
2016-09-14
[ [ "Bicudo", "Pedro", "" ], [ "Cardoso", "Marco", "" ], [ "Llanes-Estrada", "Felipe J.", "" ], [ "Van Cauteren", "Tim", "" ] ]
We study the conjectured "Insensitivity to Chiral Symmetry Breaking" in the highly excited light baryon spectrum. While the experimental spectrum is being measured at JLab and CBELSA/TAPS, this insensitivity remains to be computed theoretically in detail. As the only existing option to have both confinement, highly exc...
hep-ph/0308253
Charles Steinhardt
Charles L. Steinhardt
Constraints on Field Theoretical Models for Variation of the Fine Structure Constant
14 pages, 2 figures. Submitted to Phys. Rev. D. Major amendments including reconsideration in light of new measurements
Phys.Rev. D71 (2005) 043509
10.1103/PhysRevD.71.043509
null
hep-ph astro-ph
null
Recent theoretical ideas and observational claims suggest that the fine structure constant alpha may be variable. We examine a spectrum of models in which alpha is a function of a scalar field. Specifically, we consider three scenarios: oscillating alpha, monotonic time variation of alpha, and time-independent alpha ...
[ { "created": "Tue, 26 Aug 2003 04:06:18 GMT", "version": "v1" }, { "created": "Thu, 18 Mar 2004 02:48:03 GMT", "version": "v2" } ]
2009-11-10
[ [ "Steinhardt", "Charles L.", "" ] ]
Recent theoretical ideas and observational claims suggest that the fine structure constant alpha may be variable. We examine a spectrum of models in which alpha is a function of a scalar field. Specifically, we consider three scenarios: oscillating alpha, monotonic time variation of alpha, and time-independent alpha th...
hep-ph/0206240
Mikhail Voloshin
M.B. Voloshin
The decay eta_c^prime -> eta_c pi pi
5 pages, references added
Mod.Phys.Lett. A17 (2002) 1533-1538
10.1142/S0217732302007892
TPI-MINN-02/20-T, UMN-TH-2105-02
hep-ph
null
It is pointed out that the decay of the recently observed charmonium eta_c^prime resonance, eta_c^prime -> eta_c pi pi is simply related to the well studied decay psi^prime -> J/psi pi pi and can thus be used for absolute normalization of other decay modes of the eta_c^prime. The total rate of the discussed decay sho...
[ { "created": "Mon, 24 Jun 2002 19:58:58 GMT", "version": "v1" }, { "created": "Tue, 25 Jun 2002 19:15:12 GMT", "version": "v2" } ]
2009-11-07
[ [ "Voloshin", "M. B.", "" ] ]
It is pointed out that the decay of the recently observed charmonium eta_c^prime resonance, eta_c^prime -> eta_c pi pi is simply related to the well studied decay psi^prime -> J/psi pi pi and can thus be used for absolute normalization of other decay modes of the eta_c^prime. The total rate of the discussed decay shoul...
2211.00634
Andreas Trautner
Alexei Y. Smirnov, Andreas Trautner
GRB 221009A Gamma Rays from Radiative Decay of Heavy Neutrinos?
6 pages, 1 figure; v2: typos fixed, references added
null
10.1103/PhysRevLett.131.021002
null
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider a mechanism which allows to decrease attenuation of high energy gamma ray flux from gamma ray burst GRB 221009A. The mechanism is based on the existence of a heavy $m_N\sim0.1\,\mathrm{MeV}$ mostly sterile neutrino $N$ which mixes with active neutrinos. $N$'s are produced in GRB in $\pi$ and $K$ decays vi...
[ { "created": "Tue, 1 Nov 2022 17:56:50 GMT", "version": "v1" }, { "created": "Wed, 9 Nov 2022 12:58:46 GMT", "version": "v2" } ]
2023-07-26
[ [ "Smirnov", "Alexei Y.", "" ], [ "Trautner", "Andreas", "" ] ]
We consider a mechanism which allows to decrease attenuation of high energy gamma ray flux from gamma ray burst GRB 221009A. The mechanism is based on the existence of a heavy $m_N\sim0.1\,\mathrm{MeV}$ mostly sterile neutrino $N$ which mixes with active neutrinos. $N$'s are produced in GRB in $\pi$ and $K$ decays via ...
hep-ph/9708356
Tadashi Yoshikawa
C.S. Kim (Yonsei Univ.), D. London (Univ. de Montreal) and T. Yoshikawa (KEK)
Using B_s^0 Decays to Determine the CP Angles \alpha and \gamma
28 pages, LaTeX
Phys.Rev.D57:4010-4024,1998
10.1103/PhysRevD.57.4010
UdeM-GPP-TH-97-43, YUMS 97-022, SNUTP 97-109, KEK-TH-532
hep-ph
null
Dighe, Gronau and Rosner have shown that, by assuming SU(3) flavor symmetry and first-order SU(3) breaking, it is possible to extract the CP angles \alpha and \gamma from measurements of the decay rates of B_d^0(t) --> \pi^+\pi^-, B_d^0 --> \pi^- K^+ and B^+ --> \pi^+ K^0, along with their charge-conjugate processes....
[ { "created": "Fri, 15 Aug 1997 06:53:01 GMT", "version": "v1" } ]
2011-02-01
[ [ "Kim", "C. S.", "", "Yonsei Univ." ], [ "London", "D.", "", "Univ. de Montreal" ], [ "Yoshikawa", "T.", "", "KEK" ] ]
Dighe, Gronau and Rosner have shown that, by assuming SU(3) flavor symmetry and first-order SU(3) breaking, it is possible to extract the CP angles \alpha and \gamma from measurements of the decay rates of B_d^0(t) --> \pi^+\pi^-, B_d^0 --> \pi^- K^+ and B^+ --> \pi^+ K^0, along with their charge-conjugate processes. W...
hep-ph/0703100
Tetsuo Nishikawa
Tetsuo Nishikawa (Tokyo Inst. Tech.) and Yoshihiko Kondo (Kokugakuin Univ.)
Bound kaon approach for the ppK- system in the Skyrme model
Mar 2007, 5 pages, 2 figures
Few Body Syst.44:141-144,2008
10.1007/s00601-008-0276-9
null
hep-ph
null
The bound kaon approach to the strangeness in the Skyrme model is applied to exploring the possibility of deeply bound $ppK^-$ states. We derive the equation of motion for the kaon in the background of baryon number two Skyrmion expressed by the product ansatz. Collective coordinate quantization is performed to extra...
[ { "created": "Fri, 9 Mar 2007 08:13:57 GMT", "version": "v1" }, { "created": "Sat, 17 Mar 2007 07:05:03 GMT", "version": "v2" }, { "created": "Mon, 26 Mar 2007 11:07:13 GMT", "version": "v3" } ]
2009-01-16
[ [ "Nishikawa", "Tetsuo", "", "Tokyo Inst. Tech." ], [ "Kondo", "Yoshihiko", "", "Kokugakuin\n Univ." ] ]
The bound kaon approach to the strangeness in the Skyrme model is applied to exploring the possibility of deeply bound $ppK^-$ states. We derive the equation of motion for the kaon in the background of baryon number two Skyrmion expressed by the product ansatz. Collective coordinate quantization is performed to extract...
0802.3241
Yi Liao
Jian-Ping Bu, Yi Liao, Ji-Yuan Liu (Nankai U.)
Lepton Flavor Violating Muon Decays in a Model of Electroweak-Scale Right-Handed Neutrinos
11 pages, 2 figures. v2: added 2 refs and improved a comment on previous work; no other changes. v3: proofread version for PLB; added a few clarifying sentences in paragraph before eq (17) plus minor editting changes
Phys.Lett.B665:39-43,2008
10.1016/j.physletb.2008.05.059
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The small neutrino mass observed in neutrino oscillations is nicely explained by the seesaw mechanism. Rich phenomenology is generally expected if the heavy neutrinos are not much heavier than the electroweak scale. A model with this feature built in has been suggested recently by Hung. The model keeps the standard g...
[ { "created": "Fri, 22 Feb 2008 01:01:32 GMT", "version": "v1" }, { "created": "Wed, 27 Feb 2008 02:47:47 GMT", "version": "v2" }, { "created": "Tue, 3 Jun 2008 07:41:19 GMT", "version": "v3" } ]
2008-11-26
[ [ "Bu", "Jian-Ping", "", "Nankai U." ], [ "Liao", "Yi", "", "Nankai U." ], [ "Liu", "Ji-Yuan", "", "Nankai U." ] ]
The small neutrino mass observed in neutrino oscillations is nicely explained by the seesaw mechanism. Rich phenomenology is generally expected if the heavy neutrinos are not much heavier than the electroweak scale. A model with this feature built in has been suggested recently by Hung. The model keeps the standard gau...
hep-ph/0412055
Christian Sturm
K. G. Chetyrkin, J. H. Kuhn, P. Mastrolia and C. Sturm
Heavy-quark vacuum polarization: first two moments of the O(alphas^3 nf^2) contribution
10 pages, 17 figures; references added for section 1, accepted for publication in Eur. Phys. J. C
Eur.Phys.J.C40:361-366,2005
10.1140/epjc/s2005-02151-y
SFB/CPP-04-68, TTP04-25
hep-ph
null
The vacuum polarization due to a virtual heavy quark pair and specifically the coefficients of its Taylor expansion in the external momentum are closely related to moments of the cross section for quark-antiquark pair production in electron-positron annihilation. Relating measurement and theoretically calculated Tayl...
[ { "created": "Fri, 3 Dec 2004 18:02:34 GMT", "version": "v1" }, { "created": "Thu, 3 Feb 2005 16:57:43 GMT", "version": "v2" } ]
2008-11-26
[ [ "Chetyrkin", "K. G.", "" ], [ "Kuhn", "J. H.", "" ], [ "Mastrolia", "P.", "" ], [ "Sturm", "C.", "" ] ]
The vacuum polarization due to a virtual heavy quark pair and specifically the coefficients of its Taylor expansion in the external momentum are closely related to moments of the cross section for quark-antiquark pair production in electron-positron annihilation. Relating measurement and theoretically calculated Taylor...
1501.05307
Sylvain Fichet
Sylvain Fichet, Bj\"orn Herrmann, Yannick Stoll
Tasting the SU(5) nature of supersymmetry at the LHC
46 pages, 10 figures, v3: final version to appear in JHEP
null
null
LAPTh-005/15
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We elaborate on a recently found SU(5) relation confined to the up-(s)quark flavour space, that remains immune to large quantum corrections up to the TeV scale. We investigate the possibilities opened by this new window on the GUT scale in order to find TeV-scale SU(5) tests realizable at the LHC. These SU(5) tests a...
[ { "created": "Wed, 21 Jan 2015 21:00:11 GMT", "version": "v1" }, { "created": "Wed, 4 Feb 2015 20:59:24 GMT", "version": "v2" }, { "created": "Mon, 27 Apr 2015 20:35:44 GMT", "version": "v3" } ]
2015-04-29
[ [ "Fichet", "Sylvain", "" ], [ "Herrmann", "Björn", "" ], [ "Stoll", "Yannick", "" ] ]
We elaborate on a recently found SU(5) relation confined to the up-(s)quark flavour space, that remains immune to large quantum corrections up to the TeV scale. We investigate the possibilities opened by this new window on the GUT scale in order to find TeV-scale SU(5) tests realizable at the LHC. These SU(5) tests app...
1101.2171
Jenifer Nebreda
J. Nebreda, J. R. Pelaez and G. Rios (U. Complutense)
Chiral extrapolation of pion-pion scattering phase shifts within standard and unitarized Chiral Perturbation Theory
Updated parameters. Dispersive data added to plots. Version published in Phys. Rev. D
Phys.Rev.D83:094011,2011
10.1103/PhysRevD.83.094011
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the pion-pion elastic scattering phase shifts for pion masses from the chiral limit to values of interest for lattice studies. At low energies, we use the standard Chiral Perturbation Theory expressions to one and two loops. In addition, we study the phase shifts mass dependence in the resonance region b...
[ { "created": "Tue, 11 Jan 2011 17:50:27 GMT", "version": "v1" }, { "created": "Mon, 10 Oct 2011 16:05:04 GMT", "version": "v2" } ]
2011-10-11
[ [ "Nebreda", "J.", "", "U. Complutense" ], [ "Pelaez", "J. R.", "", "U. Complutense" ], [ "Rios", "G.", "", "U. Complutense" ] ]
We calculate the pion-pion elastic scattering phase shifts for pion masses from the chiral limit to values of interest for lattice studies. At low energies, we use the standard Chiral Perturbation Theory expressions to one and two loops. In addition, we study the phase shifts mass dependence in the resonance region by ...
1308.3389
Eibun Senaha
Eibun Senaha
$Z'$-ino-driven Electroweak Baryogenesis in the UMSSM
31 pages, 11 figures. v2: typos corrected, v3: some clarification and reference added, version to appear in PRD
null
10.1103/PhysRevD.88.055014
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The viable window to electroweak baryogenesis in a supersymmetric $U(1)'$ model is studied in light of the 126 GeV Higgs boson. To investigate the decoupling of the sphaleron process in the broken phase, we evaluate the sphaleron rate and order of the electroweak phase transition. In this model, the electroweak phase...
[ { "created": "Thu, 15 Aug 2013 13:34:15 GMT", "version": "v1" }, { "created": "Fri, 23 Aug 2013 03:22:18 GMT", "version": "v2" }, { "created": "Tue, 17 Sep 2013 04:19:22 GMT", "version": "v3" } ]
2013-09-25
[ [ "Senaha", "Eibun", "" ] ]
The viable window to electroweak baryogenesis in a supersymmetric $U(1)'$ model is studied in light of the 126 GeV Higgs boson. To investigate the decoupling of the sphaleron process in the broken phase, we evaluate the sphaleron rate and order of the electroweak phase transition. In this model, the electroweak phase t...
2303.15384
Alexander Parkhomenko
Ahmed Ali, Alexander Ya. Parkhomenko, Irina M. Parnova
Branching Fraction of the Decay $B^+ \to \pi^+ \tau^+ \tau^-$ and Lepton Flavor Universality Test via the Ratio $R_\pi (\tau/\mu)$
11 pages, 5 figures, 11 tables. v2. References added, matches version published in Physics Letters B
Phys. Lett. B 842 (2023) 137961
10.1016/j.physletb.2023.137961
DESY 23-036
hep-ph hep-ex hep-lat
http://creativecommons.org/licenses/by/4.0/
Among (semi)leptonic rare $B$-decays induced by the $b \to d$ flavor changing neutral current, the decay $B^+ \to \pi^+ \mu^+ \mu^-$ is the only one observed so far experimentally. Related decays involving the $e^+e^-$ and $\tau^+ \tau^-$ pairs are the targets for the ongoing experiments at the LHC, in particular LHC...
[ { "created": "Mon, 27 Mar 2023 16:58:02 GMT", "version": "v1" }, { "created": "Tue, 23 May 2023 16:26:36 GMT", "version": "v2" } ]
2023-05-24
[ [ "Ali", "Ahmed", "" ], [ "Parkhomenko", "Alexander Ya.", "" ], [ "Parnova", "Irina M.", "" ] ]
Among (semi)leptonic rare $B$-decays induced by the $b \to d$ flavor changing neutral current, the decay $B^+ \to \pi^+ \mu^+ \mu^-$ is the only one observed so far experimentally. Related decays involving the $e^+e^-$ and $\tau^+ \tau^-$ pairs are the targets for the ongoing experiments at the LHC, in particular LHCb,...
hep-ph/0506258
Dominik Stockinger
Dominik St\"ockinger
Regularization of supersymmetric theories: Recent improvements
Talk given at the 2005 International Linear Collider Workshop - Stanford, USA. 6 pages, 1 figure
null
null
IPPP/05/32, DCPT/05/64
hep-ph
null
Recent progress concerning regularization of supersymmetric theories is reviewed. Dimensional reduction is reformulated in a mathematically consistent way, and an elegant and general method is presented that allows to study the supersymmetry-invariance of dimensional reduction in an easy manner. This method is applie...
[ { "created": "Sat, 25 Jun 2005 14:21:52 GMT", "version": "v1" } ]
2007-05-23
[ [ "Stöckinger", "Dominik", "" ] ]
Recent progress concerning regularization of supersymmetric theories is reviewed. Dimensional reduction is reformulated in a mathematically consistent way, and an elegant and general method is presented that allows to study the supersymmetry-invariance of dimensional reduction in an easy manner. This method is applied ...
hep-ph/0002191
Sandro Ambrosanio
S. Ambrosanio (convener), S. Heinemeyer, B. Mele, S. Petrarca, G. Polesello, A. Rimoldi, G. Weiglein
Aspects of GMSB Phenomenology at TeV Colliders
22 pages, 9 figures (12 eps files). Report of the GMSB SUSY Working Group, Workshop "Physics at TeV Colliders", Les Houches, 7-18 June 1999. Revised version v3: A few typos corrected
null
null
CERN-TH/2000-054, DESY 00/021
hep-ph hep-ex
null
The status of two on-going studies concerning important aspects of the phenomenology of gauge-mediated supersymmetry breaking (GMSB) models at TeV colliders is reported. The first study deals with the characteristics of the light Higgs boson spectrum allowed by the (minimal and non-minimal) GMSB framework. Today's mo...
[ { "created": "Thu, 17 Feb 2000 20:07:34 GMT", "version": "v1" }, { "created": "Fri, 18 Feb 2000 20:02:09 GMT", "version": "v2" }, { "created": "Wed, 1 Mar 2000 19:29:01 GMT", "version": "v3" } ]
2007-05-23
[ [ "Ambrosanio", "S.", "", "convener" ], [ "Heinemeyer", "S.", "" ], [ "Mele", "B.", "" ], [ "Petrarca", "S.", "" ], [ "Polesello", "G.", "" ], [ "Rimoldi", "A.", "" ], [ "Weiglein", "G.", "" ] ]
The status of two on-going studies concerning important aspects of the phenomenology of gauge-mediated supersymmetry breaking (GMSB) models at TeV colliders is reported. The first study deals with the characteristics of the light Higgs boson spectrum allowed by the (minimal and non-minimal) GMSB framework. Today's most...
1711.02971
Timo K\"arkk\"ainen
Katri Huitu, Timo J. K\"arkk\"ainen, Jukka Maalampi and Sampsa Vihonen
The effects of triplet Higgs bosons in long baseline neutrino experiments
19 pages, 5 figures
Phys. Rev. D 97, 095037 (2018)
10.1103/PhysRevD.97.095037
HIP-2017-29/TH
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The triplet scalars $(\Delta=\Delta^{++},\Delta^{+},\Delta^{0})$, utilized in the so-called Type-II seesaw model to explain the lightness of neutrinos, would generate nonstandard interactions (NSI) for neutrino propagating in matter. We investigate the prospects to probe these interactions in long baseline neutrino o...
[ { "created": "Wed, 8 Nov 2017 14:39:02 GMT", "version": "v1" }, { "created": "Wed, 22 Nov 2017 21:02:52 GMT", "version": "v2" } ]
2018-06-06
[ [ "Huitu", "Katri", "" ], [ "Kärkkäinen", "Timo J.", "" ], [ "Maalampi", "Jukka", "" ], [ "Vihonen", "Sampsa", "" ] ]
The triplet scalars $(\Delta=\Delta^{++},\Delta^{+},\Delta^{0})$, utilized in the so-called Type-II seesaw model to explain the lightness of neutrinos, would generate nonstandard interactions (NSI) for neutrino propagating in matter. We investigate the prospects to probe these interactions in long baseline neutrino osc...
0806.3224
Mario A. Serna
Alan J. Barr and Graham G. Ross and Mario Serna
The Precision Determination of Invisible-Particle Masses at the LHC
20 pages, 11 figures, minor corrections
Phys.Rev.D78:056006,2008
10.1103/PhysRevD.78.056006
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We develop techniques to determine the mass scale of invisible particles pair-produced at hadron colliders. We employ the constrained mass variable m_2C, which provides an event-by-event lower-bound to the mass scale given a mass difference. We complement this variable with a new variable m_2C,UB which provides an ad...
[ { "created": "Thu, 19 Jun 2008 17:55:30 GMT", "version": "v1" }, { "created": "Mon, 30 Jun 2008 12:53:15 GMT", "version": "v2" } ]
2008-11-26
[ [ "Barr", "Alan J.", "" ], [ "Ross", "Graham G.", "" ], [ "Serna", "Mario", "" ] ]
We develop techniques to determine the mass scale of invisible particles pair-produced at hadron colliders. We employ the constrained mass variable m_2C, which provides an event-by-event lower-bound to the mass scale given a mass difference. We complement this variable with a new variable m_2C,UB which provides an addi...
hep-ph/9807268
Ralph R. Engel
A. Rostovtsev (1), M.G. Ryskin (2), and R. Engel (3) ((1) ITEP, Moscow, (2) Petersburg Nuclear Physics Institute, St. Petersburg, (3) Bartol Research Institute, Newark)
Phenomenological description of the gamma* p cross section at low Q2
14 pages, revtex, epsfig, 2 figures
Phys.Rev.D59:014021,1999
10.1103/PhysRevD.59.014021
BA-98-33
hep-ph
null
Low Q2 photon-proton cross sections are analysed using a simple, QCD-motivated parametrisation $\sigma_{\gamma^\star p}\propto 1/(Q^2+Q_0^2)$, which gives a good description of the data. The Q2 dependence of the gamma* p cross section is discussed in terms of the partonic transverse momenta of the hadronic state the ...
[ { "created": "Tue, 7 Jul 1998 03:37:13 GMT", "version": "v1" } ]
2011-05-12
[ [ "Rostovtsev", "A.", "" ], [ "Ryskin", "M. G.", "" ], [ "Engel", "R.", "" ] ]
Low Q2 photon-proton cross sections are analysed using a simple, QCD-motivated parametrisation $\sigma_{\gamma^\star p}\propto 1/(Q^2+Q_0^2)$, which gives a good description of the data. The Q2 dependence of the gamma* p cross section is discussed in terms of the partonic transverse momenta of the hadronic state the ph...
2107.13235
Khoirul Faiq Muzakka
K. F. Muzakka, P. Duwent\"aster, T. J. Hobbs, T. Je\v{z}o, M. Klasen, K. Kova\v{r}\'ik, A. Kusina, J. G. Morf\'in, F. I. Olness, R. Ruiz, I. Schienbein and J. Y. Yu
Impact of W and Z Production Data and Compatibility of Neutrino DIS Data in Nuclear Parton Distribution Functions
8 pages, 4 figures. Submission to SciPost
null
null
MS-TP-21-21
hep-ph nucl-th
http://creativecommons.org/licenses/by/4.0/
Vector boson production and neutrino deep-inelastic scattering (DIS) data are crucial for constraining the strange quark parton distribution function (PDF) and more generally for flavor decomposition in PDF extractions. We extend the nCTEQ15 nuclear PDFs (nPDFs) by adding the recent $W$ and $Z$ production data from t...
[ { "created": "Wed, 28 Jul 2021 09:40:27 GMT", "version": "v1" }, { "created": "Thu, 17 Mar 2022 23:38:57 GMT", "version": "v2" } ]
2022-03-21
[ [ "Muzakka", "K. F.", "" ], [ "Duwentäster", "P.", "" ], [ "Hobbs", "T. J.", "" ], [ "Ježo", "T.", "" ], [ "Klasen", "M.", "" ], [ "Kovařík", "K.", "" ], [ "Kusina", "A.", "" ], [ "Morfín", "J. G....
Vector boson production and neutrino deep-inelastic scattering (DIS) data are crucial for constraining the strange quark parton distribution function (PDF) and more generally for flavor decomposition in PDF extractions. We extend the nCTEQ15 nuclear PDFs (nPDFs) by adding the recent $W$ and $Z$ production data from the...
hep-ph/9803318
Yasuhiro Okada
Yasuhiro Okada (KEK)
Kaon and Muon Decay Phenomenology
10 pages, 2 figures, talk given at International KEK Workshop on Kaon, Muon, Neutrino Physics and Future, Oct.31 - Nov. 1, 1997, KEK
null
null
KEK-TH-564
hep-ph
null
Theoretical aspects of kaon and muon decays are reviewed. In particular, three topics on kaon and muon decays, namely $K \to \pi\nu \bar{\nu}$ processes, T violation in $K^+ \to \pi^0\mu^+ \nu$ decay and lepton flavor violation in muon decay are considered. Theoretical backgrounds and possible significance on new phy...
[ { "created": "Thu, 12 Mar 1998 07:34:38 GMT", "version": "v1" } ]
2007-05-23
[ [ "Okada", "Yasuhiro", "", "KEK" ] ]
Theoretical aspects of kaon and muon decays are reviewed. In particular, three topics on kaon and muon decays, namely $K \to \pi\nu \bar{\nu}$ processes, T violation in $K^+ \to \pi^0\mu^+ \nu$ decay and lepton flavor violation in muon decay are considered. Theoretical backgrounds and possible significance on new physi...
hep-ph/0604125
Karol Kampf
Karol Kampf, Bachir Moussallam
Tests of the naturalness of the coupling constants in ChPT at order p^6
15 pages, 5 figures; v2: minor improvements, to appear in Eur. Phys. J. C
Eur.Phys.J.C47:723-736,2006
10.1140/epjc/s2006-02606-7
null
hep-ph
null
We derive constraints on combinations of O(p^6) chiral coupling constants by matching a recent two-loop calculation of the pi-K scattering amplitude with a set of sum rules. We examine the validity of the natural expectation that the values of the chiral couplings can be associated with physics properties of the ligh...
[ { "created": "Thu, 13 Apr 2006 21:48:15 GMT", "version": "v1" }, { "created": "Wed, 7 Jun 2006 15:13:34 GMT", "version": "v2" } ]
2009-01-07
[ [ "Kampf", "Karol", "" ], [ "Moussallam", "Bachir", "" ] ]
We derive constraints on combinations of O(p^6) chiral coupling constants by matching a recent two-loop calculation of the pi-K scattering amplitude with a set of sum rules. We examine the validity of the natural expectation that the values of the chiral couplings can be associated with physics properties of the light ...
hep-ph/0603024
Palash Baran Pal
Jose F. Nieves, Palash B. Pal
Perturbative vs Schwinger-propagator method for the calculation of amplitudes in a magnetic field
23 pages, LateX, uses axodraw.sty
Phys.Rev. D73 (2006) 105003
10.1103/PhysRevD.73.105003
null
hep-ph
null
We consider the calculation of amplitudes for processes that take place in a constant background magnetic field, first using the standard method for the calculation of an amplitude in an external field, and second utilizing the Schwinger propagator for charged particles in a magnetic field. We show that there are pro...
[ { "created": "Fri, 3 Mar 2006 06:33:04 GMT", "version": "v1" } ]
2008-07-23
[ [ "Nieves", "Jose F.", "" ], [ "Pal", "Palash B.", "" ] ]
We consider the calculation of amplitudes for processes that take place in a constant background magnetic field, first using the standard method for the calculation of an amplitude in an external field, and second utilizing the Schwinger propagator for charged particles in a magnetic field. We show that there are proce...
1804.02561
Eugene Levin
E. Gotsman (Tel Aviv U.) and E. Levin (Tel Aviv U./UTFSM)
Energy evolution of J/$\mathbf{\psi}$ production in DIS on nuclei
21pp. 8 figures in eps files
Phys. Rev. D 98, 034014 (2018)
10.1103/PhysRevD.98.034014
TAUP 3030/18
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we show, that the $J/\psi$ production in DIS, is the main source of information about the events with two parton shower production. We attempt to develop our theoretical acumen of this process, to a level compatible with the theoretical description of inclusive DIS. We revisit the problem of the linear ...
[ { "created": "Sat, 7 Apr 2018 13:51:38 GMT", "version": "v1" } ]
2018-08-22
[ [ "Gotsman", "E.", "", "Tel Aviv U." ], [ "Levin", "E.", "", "Tel Aviv U./UTFSM" ] ]
In this paper we show, that the $J/\psi$ production in DIS, is the main source of information about the events with two parton shower production. We attempt to develop our theoretical acumen of this process, to a level compatible with the theoretical description of inclusive DIS. We revisit the problem of the linear ev...
2307.15405
Cesare Carlo Mella
Thomas Gehrmann, Petr Jakub\v{c}\'ik, Cesare Carlo Mella, Nikolaos Syrrakos, Lorenzo Tancredi
Planar three-loop QCD helicity amplitudes for $V$+jet production at hadron colliders
8 pages, 1 figure, 1 table, ancillary files are available https://xjetamps.hepforge.org
null
null
ZU-TH 38/23, TUM-HEP 1467/23
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We compute the planar three-loop Quantum Chromodynamics (QCD) corrections to the helicity amplitudes involving a vector boson $V=Z,W^\pm,\gamma^*$, two quarks and a gluon. These amplitudes are relevant to vector-boson-plus-jet production at hadron colliders and other precision QCD observables. The planar corrections ...
[ { "created": "Fri, 28 Jul 2023 08:57:22 GMT", "version": "v1" }, { "created": "Wed, 6 Dec 2023 16:53:25 GMT", "version": "v2" } ]
2023-12-07
[ [ "Gehrmann", "Thomas", "" ], [ "Jakubčík", "Petr", "" ], [ "Mella", "Cesare Carlo", "" ], [ "Syrrakos", "Nikolaos", "" ], [ "Tancredi", "Lorenzo", "" ] ]
We compute the planar three-loop Quantum Chromodynamics (QCD) corrections to the helicity amplitudes involving a vector boson $V=Z,W^\pm,\gamma^*$, two quarks and a gluon. These amplitudes are relevant to vector-boson-plus-jet production at hadron colliders and other precision QCD observables. The planar corrections en...
1912.09102
Roman Zhokhov
T. G. Khunjua, K. G. Klimenko, R. N. Zhokhov
Quark/hadronic matter and dualities of QCD thermodynamics
Talk presented at the 19th Lomonosov Conference on Elementary Particle Physics, Moscow State University, Moscow, Russia, from 22 to 28 of August, 2019
null
null
null
hep-ph hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this letter the dualities of thermodynamics of dense quark/hadronic matter are discussed. It is shown that chiral symmetry breaking (CSB) phenomenon is dual to charged pion condensation (PC) phenomenon.
[ { "created": "Thu, 19 Dec 2019 10:22:09 GMT", "version": "v1" } ]
2019-12-20
[ [ "Khunjua", "T. G.", "" ], [ "Klimenko", "K. G.", "" ], [ "Zhokhov", "R. N.", "" ] ]
In this letter the dualities of thermodynamics of dense quark/hadronic matter are discussed. It is shown that chiral symmetry breaking (CSB) phenomenon is dual to charged pion condensation (PC) phenomenon.
1907.09845
Syuhei Iguro Mr
Syuhei Iguro, Yuji Omura and Michihisa Takeuchi
Testing the 2HDM explanation of the muon g-2 anomaly at the LHC
18 pages and 7 figures; version published in JHEP
null
10.1007/JHEP11(2019)130
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The discrepancy between the measured value and the Standard Model prediction for the muon anomalous magnetic moment is one of the important issues in the particle physics. In this paper, we consider a two Higgs doublet model (2HDM) where the extra Higgs doublet couples to muon and tau in lepton flavor violating (LFV)...
[ { "created": "Tue, 23 Jul 2019 12:51:16 GMT", "version": "v1" }, { "created": "Fri, 13 Dec 2019 05:19:25 GMT", "version": "v2" } ]
2020-01-29
[ [ "Iguro", "Syuhei", "" ], [ "Omura", "Yuji", "" ], [ "Takeuchi", "Michihisa", "" ] ]
The discrepancy between the measured value and the Standard Model prediction for the muon anomalous magnetic moment is one of the important issues in the particle physics. In this paper, we consider a two Higgs doublet model (2HDM) where the extra Higgs doublet couples to muon and tau in lepton flavor violating (LFV) w...
1208.3756
Marco Frasca
Marco Frasca
Low energy limit of QCD and the emerging of confinement
4 pages, 3 figures. Contribution to the proceedings of conference QCD 12, Montpellier (France) 2-7 July 2012. Corrected eq. (7)
Nuclear Physics B (Proceedings Supplements) (2013), pp. 329-332
10.1016/j.nuclphysbps.2012.12.043
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
After a derivation of low-energy limit of QCD, being this a non-local Nambu-Jona-Lasinio model, we are able to show that confinement emerges as a two-loop correction to the gluon propagator. One-gluon exchange is not enough as recently shown in literature about studies on the gluon propagator in the Landau gauge.
[ { "created": "Sat, 18 Aug 2012 15:49:41 GMT", "version": "v1" }, { "created": "Thu, 6 Sep 2012 09:35:10 GMT", "version": "v2" } ]
2013-04-08
[ [ "Frasca", "Marco", "" ] ]
After a derivation of low-energy limit of QCD, being this a non-local Nambu-Jona-Lasinio model, we are able to show that confinement emerges as a two-loop correction to the gluon propagator. One-gluon exchange is not enough as recently shown in literature about studies on the gluon propagator in the Landau gauge.
1309.6652
Elizabeth Rodriguez Querts
L. Cruz Rodriguez, A. Perez Martinez, H. Perez Rojas, E. Rodriguez Querts
Quantized Faraday effect in (3+1)-dimensional and (2+1)-dimensional systems
15 pages, 5 figures
Physical Review A 88, 052126 (2013)
10.1103/PhysRevA.88.052126
null
hep-ph cond-mat.mes-hall
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study Faraday rotation in the quantum relativistic limit. Starting from the photon self-energy in the presence of a constant magnetic field the rotation of the polarization vector of a plane electromagnetic wave which travel along the fermion-antifermion gas is studied. The connection between Faraday Effect and Qu...
[ { "created": "Wed, 25 Sep 2013 20:23:44 GMT", "version": "v1" }, { "created": "Thu, 19 Dec 2013 18:00:18 GMT", "version": "v2" } ]
2013-12-20
[ [ "Rodriguez", "L. Cruz", "" ], [ "Martinez", "A. Perez", "" ], [ "Rojas", "H. Perez", "" ], [ "Querts", "E. Rodriguez", "" ] ]
We study Faraday rotation in the quantum relativistic limit. Starting from the photon self-energy in the presence of a constant magnetic field the rotation of the polarization vector of a plane electromagnetic wave which travel along the fermion-antifermion gas is studied. The connection between Faraday Effect and Quan...
1907.05729
Abdel Nasser Tawfik
Mahmoud Hanafy (Benha U. and WLCAPP, Cairo), Abdel Nasser Tawfik (Nile U., ECTP and Johann Wolfgang Goethe-Universitat), Muhammad Maher (Helwan U. and WLCAPP, Cairo), Werner Scheinast (LHEP JINR, Dubna)
Particle Ratios within EPOS, UrQMD and Thermal Models at AGS, SPS and RHIC Energies
8 pages, 2 figures, submitted to JETP
Int. J. Mod. Phys. E 30, No. 8 (2021) 2150072
10.1142/S0218301321500725
ECTP-2019-06, ECTP-2019-06
hep-ph hep-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The particle ratios $k^+/\pi^+$, $\pi^-/K^-$, $\bar{p}/\pi^-$, $\Lambda/\pi^-$, $\Omega/\pi^-$, $p/\pi^+$, $\pi^-/\pi^+$, $K^-/K^+$, $\bar{p}/p$, $\bar{\Lambda}/\Lambda$, $\bar{\Sigma}/\Sigma$, $ \bar{\Omega}/\Omega$ measured at AGS, SPS and RHIC energies are compared with large statistical ensembles of $100,000$ eve...
[ { "created": "Thu, 11 Jul 2019 16:56:56 GMT", "version": "v1" } ]
2021-11-30
[ [ "Hanafy", "Mahmoud", "", "Benha U. and WLCAPP, Cairo" ], [ "Tawfik", "Abdel Nasser", "", "Nile\n U., ECTP and Johann Wolfgang Goethe-Universitat" ], [ "Maher", "Muhammad", "", "Helwan U.\n and WLCAPP, Cairo" ], [ "Scheinast", "Werner", "", ...
The particle ratios $k^+/\pi^+$, $\pi^-/K^-$, $\bar{p}/\pi^-$, $\Lambda/\pi^-$, $\Omega/\pi^-$, $p/\pi^+$, $\pi^-/\pi^+$, $K^-/K^+$, $\bar{p}/p$, $\bar{\Lambda}/\Lambda$, $\bar{\Sigma}/\Sigma$, $ \bar{\Omega}/\Omega$ measured at AGS, SPS and RHIC energies are compared with large statistical ensembles of $100,000$ event...
1511.01018
Hiroshi Okada
Hiroshi Okada, Yuta Orikasa, Takashi Toma
Nonthermal dark matter models and signals
20 pages, 3 figures, 2 tables, version to appear in PRD
Phys. Rev. D 93, 055007 (2016)
10.1103/PhysRevD.93.055007
LPT-Orsay-15-80
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Many experiments exploring weakly interacting massive particles (WIMPs) such as direct, indirect and collider searches have been carried out until now. However, a clear signal of a WIMP has not been found yet and it makes us to suspect that WIMPs are questionable as a dark matter candidate. Taking into account this s...
[ { "created": "Tue, 3 Nov 2015 18:05:23 GMT", "version": "v1" }, { "created": "Thu, 12 Nov 2015 19:25:51 GMT", "version": "v2" }, { "created": "Fri, 4 Mar 2016 20:17:02 GMT", "version": "v3" } ]
2016-03-07
[ [ "Okada", "Hiroshi", "" ], [ "Orikasa", "Yuta", "" ], [ "Toma", "Takashi", "" ] ]
Many experiments exploring weakly interacting massive particles (WIMPs) such as direct, indirect and collider searches have been carried out until now. However, a clear signal of a WIMP has not been found yet and it makes us to suspect that WIMPs are questionable as a dark matter candidate. Taking into account this sit...
1011.6037
Mirzayusuf Musakhanov
Yousuf Musakhanov
Heavy-Light Quark Systems in the Instanton Vacuum
Submitted to the Proceedings of the ISHEPP "Relativistic Nuclear Physics and Quantum Chromodynamics", JINR (Dubna), 4-9 October 2010
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Assuming the gluon field is well approximated by instanton configurations we derive a partition function and calculate the specific correlators. Namely, the heavy quark propagator and heavy quark-aniquark correlator with the account of the light quark determinant and QCD instanton vacuum properties. With these knowle...
[ { "created": "Sun, 28 Nov 2010 11:42:06 GMT", "version": "v1" } ]
2010-11-30
[ [ "Musakhanov", "Yousuf", "" ] ]
Assuming the gluon field is well approximated by instanton configurations we derive a partition function and calculate the specific correlators. Namely, the heavy quark propagator and heavy quark-aniquark correlator with the account of the light quark determinant and QCD instanton vacuum properties. With these knowledg...
1302.3410
Malgorzata Worek
Malgorzata Worek
Differential top pair cross section and top anti-top plus jets Physics
6 pages, 1 figure, 3 tables, presented at the 5th International Workshop on Top Quark Physics, TOP2012
Journal of Physics: Conference Series 452 (2013) 012033
10.1088/1742-6596/452/1/012033
WUB/13-02
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A brief summary of the current status of the next-to-leading order QCD corrections to top quark pair production and the associated production of top anti-top with jet(s) in different configurations, i.e. with one jet, two jets and another top anti-top pair, is presented.
[ { "created": "Thu, 14 Feb 2013 14:31:47 GMT", "version": "v1" } ]
2013-08-13
[ [ "Worek", "Malgorzata", "" ] ]
A brief summary of the current status of the next-to-leading order QCD corrections to top quark pair production and the associated production of top anti-top with jet(s) in different configurations, i.e. with one jet, two jets and another top anti-top pair, is presented.
hep-ph/0107003
Deog Ki Hong
Deog Ki Hong and Y. J. Sohn (Pusan University)
Critical couplings in Crystalline Color superconductivity
9 pages, 1 figure
null
null
PNUTP-01/A02
hep-ph cond-mat.supr-con nucl-th
null
Solving the Schwinger-Dyson equations, we analyze the pairing of quarks in asymmetric quark matter where quarks have different chemical potentials. We show that in the asymmetric quark matter a crystalline color-superconducting gap opens when the quark coupling is stronger than a critical value. The critical coupling...
[ { "created": "Sat, 30 Jun 2001 05:47:06 GMT", "version": "v1" } ]
2007-05-23
[ [ "Hong", "Deog Ki", "", "Pusan University" ], [ "Sohn", "Y. J.", "", "Pusan University" ] ]
Solving the Schwinger-Dyson equations, we analyze the pairing of quarks in asymmetric quark matter where quarks have different chemical potentials. We show that in the asymmetric quark matter a crystalline color-superconducting gap opens when the quark coupling is stronger than a critical value. The critical coupling i...
2211.10239
Alejandro Bris
Alejandro Bris, Nestor G. Gracia, Vicent Mateu
NLO Oriented Event-Shape Distributions for Massive Quarks
v2: references added, new section on Monte Carlo strategy added, some typos fixed, matches journal version
null
10.1007/JHEP02(2023)247
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this article we compute the cross section for the process $e^+e^- \to Q\overline Q+X$, with $Q$ a heavy quark, differential in a given event shape $e$ and the angle $\theta_T$ between the thrust axis and the beam direction. These observables are usually referred to as oriented event shapes, and it has been shown t...
[ { "created": "Fri, 18 Nov 2022 13:53:30 GMT", "version": "v1" }, { "created": "Tue, 28 Feb 2023 13:22:16 GMT", "version": "v2" } ]
2023-03-22
[ [ "Bris", "Alejandro", "" ], [ "Gracia", "Nestor G.", "" ], [ "Mateu", "Vicent", "" ] ]
In this article we compute the cross section for the process $e^+e^- \to Q\overline Q+X$, with $Q$ a heavy quark, differential in a given event shape $e$ and the angle $\theta_T$ between the thrust axis and the beam direction. These observables are usually referred to as oriented event shapes, and it has been shown tha...
hep-ph/0304123
Per Osland
P. Osland (Bergen), A.A. Pankov (Gomel, Trieste) and N. Paver (Trieste)
Discriminating graviton exchange effects from other new physics scenarios in e^+e^- collisions
18 pages, including figures; v2: additional references and acknowledgements. To appear in PRD
Phys.Rev. D68 (2003) 015007
10.1103/PhysRevD.68.015007
null
hep-ph
null
We study the possibility of uniquely identifying the effects of graviton exchange from other new physics in high energy e^+e^- annihilation into fermion-pairs. For this purpose, we use as basic observable a specific asymmetry among integrated differential distributions, that seems particularly suitable to directly te...
[ { "created": "Mon, 14 Apr 2003 08:05:31 GMT", "version": "v1" }, { "created": "Fri, 6 Jun 2003 09:53:44 GMT", "version": "v2" } ]
2009-11-10
[ [ "Osland", "P.", "", "Bergen" ], [ "Pankov", "A. A.", "", "Gomel, Trieste" ], [ "Paver", "N.", "", "Trieste" ] ]
We study the possibility of uniquely identifying the effects of graviton exchange from other new physics in high energy e^+e^- annihilation into fermion-pairs. For this purpose, we use as basic observable a specific asymmetry among integrated differential distributions, that seems particularly suitable to directly test...
2205.02205
Xing-Bo Yuan
Xin-Qiang Li, Ze-Jun Xie, Ya-Dong Yang, Xing-Bo Yuan
Correlating the CDF $W$-boson mass shift with the $b \to s \ell^+ \ell^-$ anomalies
7 pages, 3 figures, typos fixed, figures refined, and references added
null
10.1016/j.physletb.2022.137651
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
The recently updated measurement of the $W$-boson mass by the CDF collaboration exhibits a $7\sigma$ deviation from the SM expectation, which may imply a sign of new physics beyond the SM. The observed discrepancy could be explained by new fermions that carry the electroweak gauge charges and affect the vacuum polari...
[ { "created": "Wed, 4 May 2022 17:31:16 GMT", "version": "v1" }, { "created": "Mon, 16 May 2022 17:26:56 GMT", "version": "v2" } ]
2023-01-11
[ [ "Li", "Xin-Qiang", "" ], [ "Xie", "Ze-Jun", "" ], [ "Yang", "Ya-Dong", "" ], [ "Yuan", "Xing-Bo", "" ] ]
The recently updated measurement of the $W$-boson mass by the CDF collaboration exhibits a $7\sigma$ deviation from the SM expectation, which may imply a sign of new physics beyond the SM. The observed discrepancy could be explained by new fermions that carry the electroweak gauge charges and affect the vacuum polariza...
1912.12386
Iulia Popa-Mateiu
John Gargalionis, Iulia Popa-Mateiu, Raymond R. Volkas
Radiative neutrino mass model from a mass dimension-11 $\Delta L =2 $ effective operator
52 pages, 22 figures, 4 tables
null
10.1007/JHEP03(2020)150
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present the first detailed phenomenological analysis of a radiative Majorana neutrino mass model constructed from opening up a $\Delta L = 2$ mass-dimension-11 effective operator constructed out of standard model fields. While three such operators are generated, only one dominates neutrino mass generation, namely ...
[ { "created": "Sat, 28 Dec 2019 02:54:39 GMT", "version": "v1" }, { "created": "Wed, 5 Feb 2020 03:30:16 GMT", "version": "v2" } ]
2020-04-22
[ [ "Gargalionis", "John", "" ], [ "Popa-Mateiu", "Iulia", "" ], [ "Volkas", "Raymond R.", "" ] ]
We present the first detailed phenomenological analysis of a radiative Majorana neutrino mass model constructed from opening up a $\Delta L = 2$ mass-dimension-11 effective operator constructed out of standard model fields. While three such operators are generated, only one dominates neutrino mass generation, namely $O...
hep-ph/9505215
Mark Beinker
M. W. Beinker, B. C. Metsch and H. R. Petry
Bound $q^2\bar q^2$ states in a constituent quark model
11 pages, needs epsf.sty
J.Phys.G22:1151-1160,1996
10.1088/0954-3899/22/8/005
null
hep-ph nucl-th
null
We consider the existence of bound systems consisting of two quarks and two antiquarks ($q^2\bar q^2$) within the framework of a constituent quark model. The underlying quark dynamics is described by a linear confinement potential and an effective $q^2\bar q^2$ interaction which has its origin in instanton effects of...
[ { "created": "Tue, 2 May 1995 19:24:35 GMT", "version": "v1" } ]
2008-11-26
[ [ "Beinker", "M. W.", "" ], [ "Metsch", "B. C.", "" ], [ "Petry", "H. R.", "" ] ]
We consider the existence of bound systems consisting of two quarks and two antiquarks ($q^2\bar q^2$) within the framework of a constituent quark model. The underlying quark dynamics is described by a linear confinement potential and an effective $q^2\bar q^2$ interaction which has its origin in instanton effects of Q...
1910.07525
Kim Berghaus
Kim V. Berghaus, Peter W. Graham, and David E. Kaplan
Minimal Warm Inflation
18 pages, 1 figure, v2: We added additional references and clarifying comments in the introduction. We added an estimate on thermalization in section III, and an additional comment on cosine-like potentials in section IV, and a footnote commenting on equation 12. v2 matches published version. v3 corrects severa...
JCAP03(2020)034
10.1088/1475-7516/2020/03/034
null
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Slow-roll inflation is a successful paradigm. However we find that even a small coupling of the inflaton to other light fields can dramatically alter the dynamics and predictions of inflation. As an example, the inflaton can generically have an axion-like coupling to gauge bosons. Even relatively small couplings will...
[ { "created": "Wed, 16 Oct 2019 18:00:00 GMT", "version": "v1" }, { "created": "Tue, 17 Mar 2020 21:23:30 GMT", "version": "v2" }, { "created": "Sat, 16 Sep 2023 00:04:48 GMT", "version": "v3" } ]
2023-09-19
[ [ "Berghaus", "Kim V.", "" ], [ "Graham", "Peter W.", "" ], [ "Kaplan", "David E.", "" ] ]
Slow-roll inflation is a successful paradigm. However we find that even a small coupling of the inflaton to other light fields can dramatically alter the dynamics and predictions of inflation. As an example, the inflaton can generically have an axion-like coupling to gauge bosons. Even relatively small couplings will a...
1008.0268
Valery Lyubovitskij
Tanja Branz, Thomas Gutsche, Valery E. Lyubovitskij, Ivan Schmidt, Alfredo Vega
Light and heavy mesons in a soft-wall holographic approach
17 pages, 6 figures
Phys.Rev.D82:074022,2010
10.1103/PhysRevD.82.074022
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the mass spectrum and decay constants of light and heavy mesons in a soft-wall holographic approach, using the correspondence of string theory in Anti-de Sitter space and conformal field theory in physical space-time.
[ { "created": "Mon, 2 Aug 2010 09:56:23 GMT", "version": "v1" }, { "created": "Tue, 26 Oct 2010 14:40:12 GMT", "version": "v2" } ]
2010-10-27
[ [ "Branz", "Tanja", "" ], [ "Gutsche", "Thomas", "" ], [ "Lyubovitskij", "Valery E.", "" ], [ "Schmidt", "Ivan", "" ], [ "Vega", "Alfredo", "" ] ]
We study the mass spectrum and decay constants of light and heavy mesons in a soft-wall holographic approach, using the correspondence of string theory in Anti-de Sitter space and conformal field theory in physical space-time.
hep-ph/0505193
Sanatan Digal
S. Digal, O. Kaczmarek, F. Karsch, H. Satz
Heavy Quark Interactions in Finite Temperature QCD
4 pages, 4 figures, contribution to the proceedings of the International Conference on Hard and Electromagnetic Probes of High Energy Nuclear Collisions, Ericeira, Portugal, Nov. 4-10, 2004
Eur.Phys.J.C43:71-75,2005
10.1140/epjc/s2005-02309-7
BI-TP 2005/16, TKYNT-05-15
hep-ph
null
We study the free energy of a heavy quark-antiquark pair in a thermal medium. We constuct a simple ansatz for the free energy for two quark flavors motivated by the Debye-H\"uckel theory of screening.
[ { "created": "Mon, 23 May 2005 08:47:49 GMT", "version": "v1" } ]
2009-01-07
[ [ "Digal", "S.", "" ], [ "Kaczmarek", "O.", "" ], [ "Karsch", "F.", "" ], [ "Satz", "H.", "" ] ]
We study the free energy of a heavy quark-antiquark pair in a thermal medium. We constuct a simple ansatz for the free energy for two quark flavors motivated by the Debye-H\"uckel theory of screening.
1604.08328
George Leontaris
Aditya Hebbar, George K. Leontaris, Qaisar Shafi
Masses of Third Family Vector-like Quarks and Leptons in Yukawa-Unified $E_6$
10 pages, 4 figures
Phys. Rev. D 93, 111701 (2016)
10.1103/PhysRevD.93.111701
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In supersymmetric $E_6$ the masses of the third family quarks and charged lepton, $t-b-\tau$, as well as the masses of the vector-like quarks and leptons, $D-\bar{D}$ and $ L-\bar{L}$, may arise from the coupling $27_3$ x $27_3$ x $27_H$, where $27_3$ and $27_H$ denote the third family matter and Higgs multiplets res...
[ { "created": "Thu, 28 Apr 2016 07:27:19 GMT", "version": "v1" } ]
2016-06-22
[ [ "Hebbar", "Aditya", "" ], [ "Leontaris", "George K.", "" ], [ "Shafi", "Qaisar", "" ] ]
In supersymmetric $E_6$ the masses of the third family quarks and charged lepton, $t-b-\tau$, as well as the masses of the vector-like quarks and leptons, $D-\bar{D}$ and $ L-\bar{L}$, may arise from the coupling $27_3$ x $27_3$ x $27_H$, where $27_3$ and $27_H$ denote the third family matter and Higgs multiplets respe...
hep-ph/9411358
null
A. Dumitru, U. Katscher, J.A. Maruhn, H. St\"ocker, W. Greiner, D.H. Rischke
Pion and thermal photon spectra as a possible signal for a phase transition
14 pages, 5 figures separated
Phys.Rev.C51:2166-2170,1995
10.1103/PhysRevC.51.2166
UFTP 375/1994
hep-ph
null
We calculate thermal photon and neutral pion spectra in ultrarelativistic heavy-ion collisions in the framework of three-fluid hydrodynamics. Both spectra are quite sensitive to the equation of state used. In particular, within our model, recent data for $S+Au$ at $200$ AGeV can only be understood if a scenario with ...
[ { "created": "Tue, 22 Nov 1994 14:17:15 GMT", "version": "v1" } ]
2009-09-25
[ [ "Dumitru", "A.", "" ], [ "Katscher", "U.", "" ], [ "Maruhn", "J. A.", "" ], [ "Stöcker", "H.", "" ], [ "Greiner", "W.", "" ], [ "Rischke", "D. H.", "" ] ]
We calculate thermal photon and neutral pion spectra in ultrarelativistic heavy-ion collisions in the framework of three-fluid hydrodynamics. Both spectra are quite sensitive to the equation of state used. In particular, within our model, recent data for $S+Au$ at $200$ AGeV can only be understood if a scenario with a ...
hep-ph/0310224
Sergey Troshin
V. V. Mochalov, S. M. Troshin, A. N. Vasiliev
Indication on the universal hadron substructure - constituent quarks
3 pages, 3 figures, references added
Phys.Rev. D69 (2004) 077503
10.1103/PhysRevD.69.077503
null
hep-ph hep-ex
null
The universality of single-spin asymmetry on inclusive pi-meson production is discussed. This universality can be related to the hadron substructure - constituent quarks.
[ { "created": "Sat, 18 Oct 2003 10:31:51 GMT", "version": "v1" }, { "created": "Fri, 24 Oct 2003 13:20:41 GMT", "version": "v2" } ]
2009-11-10
[ [ "Mochalov", "V. V.", "" ], [ "Troshin", "S. M.", "" ], [ "Vasiliev", "A. N.", "" ] ]
The universality of single-spin asymmetry on inclusive pi-meson production is discussed. This universality can be related to the hadron substructure - constituent quarks.
hep-ph/0011011
Marek Zielinski
Marek Zielinski (University of Rochester)
Study of direct-photon and pion production
Talk given at DPF2000, 9-12 August 2000, Columbus, OH. LaTeX, 3 pages (including 4 figures)
Int.J.Mod.Phys. A16S1A (2001) 232-234
10.1142/S0217751X01006577
null
hep-ph
null
We present comparisons of high-pT photon and pion production in hadronic interactions with expectations from next-to-leading order perturbative QCD (NLO pQCD). We also comment on phenomenological models of kT smearing (which approximate effects of additional soft-gluon emission) and on the status of resummation calcu...
[ { "created": "Wed, 1 Nov 2000 22:21:56 GMT", "version": "v1" } ]
2009-10-31
[ [ "Zielinski", "Marek", "", "University of Rochester" ] ]
We present comparisons of high-pT photon and pion production in hadronic interactions with expectations from next-to-leading order perturbative QCD (NLO pQCD). We also comment on phenomenological models of kT smearing (which approximate effects of additional soft-gluon emission) and on the status of resummation calcula...
1706.04512
Tae Hyun Jung
Kyu Jung Bae, Tae Hyun Jung and Myeonghun Park
Spectral Decomposition of Missing Transverse Energy at Hadron Colliders
6+4 pages, 6 figures, PRL version
Phys. Rev. Lett. 119, 261801 (2017)
10.1103/PhysRevLett.119.261801
CTPU-17-17
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a spectral decomposition to systematically extract information of dark matter at hadron colliders. The differential cross section of events with missing transverse energy (MET) can be expressed by a linear combination of basis functions. In the case of $s$-channel mediator models for dark matter particle p...
[ { "created": "Wed, 14 Jun 2017 14:28:07 GMT", "version": "v1" }, { "created": "Mon, 16 Oct 2017 13:06:59 GMT", "version": "v2" }, { "created": "Fri, 5 Jan 2018 12:46:11 GMT", "version": "v3" } ]
2018-01-08
[ [ "Bae", "Kyu Jung", "" ], [ "Jung", "Tae Hyun", "" ], [ "Park", "Myeonghun", "" ] ]
We propose a spectral decomposition to systematically extract information of dark matter at hadron colliders. The differential cross section of events with missing transverse energy (MET) can be expressed by a linear combination of basis functions. In the case of $s$-channel mediator models for dark matter particle pro...
1007.3431
Joshua Erlich
Dylan Albrecht and Joshua Erlich (College of William and Mary)
Pion condensation in holographic QCD
19 pages, 7 eps figures
Phys.Rev.D82:095002,2010
10.1103/PhysRevD.82.095002
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study pion condensation at zero temperature in a hard-wall holographic model of hadrons with isospin chemical potential. We find that the transition from the hadronic phase to the pion condensate phase is first order except in a certain limit of model parameters. Our analysis suggests that immediately across the p...
[ { "created": "Tue, 20 Jul 2010 14:28:57 GMT", "version": "v1" } ]
2010-11-11
[ [ "Albrecht", "Dylan", "", "College of William and Mary" ], [ "Erlich", "Joshua", "", "College of William and Mary" ] ]
We study pion condensation at zero temperature in a hard-wall holographic model of hadrons with isospin chemical potential. We find that the transition from the hadronic phase to the pion condensate phase is first order except in a certain limit of model parameters. Our analysis suggests that immediately across the pha...
1803.01456
Kentarou Mawatari
Shinya Kanemura, Mariko Kikuchi, Kentarou Mawatari, Kodai Sakurai, Kei Yagyu
Loop effects on the Higgs decay widths in extended Higgs models
22 pages, 5 figures, 1 table; Version published in Physics Letters B. References and a paragraph in the end of Sec.IV.A added, resulting in improvements of Figs.2-5 (results unchanged)
null
10.1016/j.physletb.2018.06.035
OU-HET 960, UT-HET 124
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In order to identify the Higgs sector using future precision data, we calculate the partial decay widths of the discovered Higgs boson with the mass of 125 GeV into fermion pairs and gauge-boson pairs with one-loop electroweak and one-loop QCD corrections in various extended Higgs models, such as the Higgs singlet mo...
[ { "created": "Mon, 5 Mar 2018 01:55:51 GMT", "version": "v1" }, { "created": "Sat, 30 Jun 2018 01:36:57 GMT", "version": "v2" } ]
2018-07-03
[ [ "Kanemura", "Shinya", "" ], [ "Kikuchi", "Mariko", "" ], [ "Mawatari", "Kentarou", "" ], [ "Sakurai", "Kodai", "" ], [ "Yagyu", "Kei", "" ] ]
In order to identify the Higgs sector using future precision data, we calculate the partial decay widths of the discovered Higgs boson with the mass of 125 GeV into fermion pairs and gauge-boson pairs with one-loop electroweak and one-loop QCD corrections in various extended Higgs models, such as the Higgs singlet mode...
1407.7031
Stefano Carrazza
Stefano Carrazza and Joao Pires
Perturbative QCD description of jet data from LHC Run-I and Tevatron Run-II
51 pages, 13 figures, 35 tables. Final version, matches published version in JHEP
null
10.1007/JHEP10(2014)145
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a systematic comparison of jet predictions at the LHC and the Tevatron, with accuracy up to next-to-next-to-leading order (NNLO). The exact computation at NNLO is completed for the gluons-only channel, so we compare the exact predictions for this channel with an approximate prediction based on threshold re...
[ { "created": "Fri, 25 Jul 2014 20:00:03 GMT", "version": "v1" }, { "created": "Fri, 24 Oct 2014 14:29:31 GMT", "version": "v2" } ]
2015-06-22
[ [ "Carrazza", "Stefano", "" ], [ "Pires", "Joao", "" ] ]
We present a systematic comparison of jet predictions at the LHC and the Tevatron, with accuracy up to next-to-next-to-leading order (NNLO). The exact computation at NNLO is completed for the gluons-only channel, so we compare the exact predictions for this channel with an approximate prediction based on threshold resu...
1709.08929
Ying-nan Mao
Shi-Ping He, Ying-nan Mao, Chen Zhang, and Shou-hua Zhu
On the $ZH\eta$ vertex in the simplest Little Higgs Model
Accepted version by PRD; 11 pages with two columns; Presentation of Sec. II refined; EFT analysis added in Sec. IIIC; References updated
Phys. Rev. D 97, 075005 (2018)
10.1103/PhysRevD.97.075005
NCTS-PH1725
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The issue of deriving $ZH\eta$ vertex in the simplest Little Higgs (SLH) model is revisited. Special attention is paid to the treatment of non-canonically-normalized scalar kinetic matrix and vector-scalar two-point transitions. We elucidate a general procedure to diagonalize a general vector-scalar system in gauge t...
[ { "created": "Tue, 26 Sep 2017 10:25:49 GMT", "version": "v1" }, { "created": "Tue, 3 Oct 2017 11:21:52 GMT", "version": "v2" }, { "created": "Wed, 4 Apr 2018 13:12:49 GMT", "version": "v3" } ]
2018-04-05
[ [ "He", "Shi-Ping", "" ], [ "Mao", "Ying-nan", "" ], [ "Zhang", "Chen", "" ], [ "Zhu", "Shou-hua", "" ] ]
The issue of deriving $ZH\eta$ vertex in the simplest Little Higgs (SLH) model is revisited. Special attention is paid to the treatment of non-canonically-normalized scalar kinetic matrix and vector-scalar two-point transitions. We elucidate a general procedure to diagonalize a general vector-scalar system in gauge the...
hep-ph/9903308
Manfred Lindner
K. Dick, M. Freund, M. Lindner and A. Romanino
CP-violation in neutrino oscillations
30 pages, 6 figures. Final version to appear in Nuclear Physics B
Nucl.Phys. B562 (1999) 29-56
10.1016/S0550-3213(99)00486-1
TUM-HEP-345/99, MPI-PhT/9907, OUTP-99-15P
hep-ph hep-ex
null
We study in a quantitative way CP-violating effects in neutrino oscillation experiments in the light of current and future data. Different scenarios with three and four neutrinos are worked out in detail including matter effects in long baseline experiments and it is shown that in some cases CP-violating effects coul...
[ { "created": "Wed, 10 Mar 1999 13:06:47 GMT", "version": "v1" }, { "created": "Tue, 20 Apr 1999 14:25:28 GMT", "version": "v2" }, { "created": "Fri, 17 Sep 1999 13:31:04 GMT", "version": "v3" } ]
2009-10-31
[ [ "Dick", "K.", "" ], [ "Freund", "M.", "" ], [ "Lindner", "M.", "" ], [ "Romanino", "A.", "" ] ]
We study in a quantitative way CP-violating effects in neutrino oscillation experiments in the light of current and future data. Different scenarios with three and four neutrinos are worked out in detail including matter effects in long baseline experiments and it is shown that in some cases CP-violating effects could ...
2112.00767
Guanghui Zhou
Guanghui Zhou
Light sterile neutrinos and lepton-number-violating kaon decays in effective field theory
31 pages, 6 figures
null
10.1007/JHEP06(2022)127
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate lepton-number-violating decays $K^\mp \rightarrow \pi^\pm l^\mp l^\mp$ in the presence of sterile neutrinos. We consider minimal interactions with Standard-Model fields through Yukawa couplings as well as higher-dimensional operators in the framework of the neutrino-extended Standard Model Effective Fi...
[ { "created": "Wed, 1 Dec 2021 19:00:06 GMT", "version": "v1" }, { "created": "Sat, 9 Apr 2022 12:29:38 GMT", "version": "v2" }, { "created": "Fri, 24 Jun 2022 14:01:56 GMT", "version": "v3" } ]
2022-07-13
[ [ "Zhou", "Guanghui", "" ] ]
We investigate lepton-number-violating decays $K^\mp \rightarrow \pi^\pm l^\mp l^\mp$ in the presence of sterile neutrinos. We consider minimal interactions with Standard-Model fields through Yukawa couplings as well as higher-dimensional operators in the framework of the neutrino-extended Standard Model Effective Fiel...
hep-ph/0405174
Edward Stoeffhaas
M. M. Block and F. Halzen
Evidence for the saturation of the Froissart bound
7 pages, Latex2e, 4 postscript figures, uses epsf.sty
Phys.Rev. D70 (2004) 091901
10.1103/PhysRevD.70.091901
NUHEP 989, MADPH-04-1382
hep-ph
null
It is well known that fits to high energy data cannot discriminate between asymptotic ln(s) and ln^2(s) behavior of total cross section. We show that this is no longer the case when we impose the condition that the amplitudes also describe, on average, low energy data dominated by resonances. We demonstrate this by f...
[ { "created": "Tue, 18 May 2004 16:36:52 GMT", "version": "v1" } ]
2009-11-10
[ [ "Block", "M. M.", "" ], [ "Halzen", "F.", "" ] ]
It is well known that fits to high energy data cannot discriminate between asymptotic ln(s) and ln^2(s) behavior of total cross section. We show that this is no longer the case when we impose the condition that the amplitudes also describe, on average, low energy data dominated by resonances. We demonstrate this by fit...
2306.05730
Morimitsu Tanimoto
S. T. Petcov and M. Tanimoto
$A_4$ Modular Flavour Model of Quark Mass Hierarchies close to the Fixed Point $\tau = i\infty$
37 pages. Some comments are added. Some typos are corrected. arXiv admin note: substantial text overlap with arXiv:2212.13336
null
null
null
hep-ph
http://creativecommons.org/publicdomain/zero/1.0/
We study the possibility to generate the quark mass hierarchies as well as the CKM quark mixing and CP violation without fine-tuning in a quark flavour model with modular $A_4$ symmetry. The quark mass hierarchies are considered in the vicinity of the fixed point $\tau = i\infty$, $\tau$ being the vacuum expectation ...
[ { "created": "Fri, 9 Jun 2023 07:51:36 GMT", "version": "v1" }, { "created": "Tue, 25 Jul 2023 01:08:43 GMT", "version": "v2" } ]
2023-07-26
[ [ "Petcov", "S. T.", "" ], [ "Tanimoto", "M.", "" ] ]
We study the possibility to generate the quark mass hierarchies as well as the CKM quark mixing and CP violation without fine-tuning in a quark flavour model with modular $A_4$ symmetry. The quark mass hierarchies are considered in the vicinity of the fixed point $\tau = i\infty$, $\tau$ being the vacuum expectation va...
1912.07036
Anurag Tiwari
Rishi Sharma and Anurag Tiwari
Quantum evolution of quarkonia with correlated and uncorrelated noise
16 Pages, 8 Figures
Phys. Rev. D 101, 074004 (2020)
10.1103/PhysRevD.101.074004
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the quark-gluon plasma (QGP), it is well known that the evolution of quarkonia is affected by the screening of the interaction between the quark and the anti-quark. In addition, exchange of energy and color with the surrounding medium can be included via the incorporation of noise terms in the evolution Hamiltonia...
[ { "created": "Sun, 15 Dec 2019 13:03:02 GMT", "version": "v1" } ]
2020-04-15
[ [ "Sharma", "Rishi", "" ], [ "Tiwari", "Anurag", "" ] ]
In the quark-gluon plasma (QGP), it is well known that the evolution of quarkonia is affected by the screening of the interaction between the quark and the anti-quark. In addition, exchange of energy and color with the surrounding medium can be included via the incorporation of noise terms in the evolution Hamiltonian....
hep-ph/0304113
John Gracey
J.A. Gracey
Three loop anomalous dimension of non-singlet quark currents in the RI' scheme
26 latex pages
Nucl.Phys. B662 (2003) 247-278
10.1016/S0550-3213(03)00335-3
LTH 572
hep-ph hep-lat
null
We renormalize QCD at three loops in the modified regularization invariant, RI', scheme in arbitrary covariant gauge and deduce that the four loop beta-function is equivalent to the MSbar result. The anomalous dimensions of the scalar, vector and tensor currents are then determined in the RI' scheme at three loops by...
[ { "created": "Fri, 11 Apr 2003 14:30:44 GMT", "version": "v1" } ]
2009-11-10
[ [ "Gracey", "J. A.", "" ] ]
We renormalize QCD at three loops in the modified regularization invariant, RI', scheme in arbitrary covariant gauge and deduce that the four loop beta-function is equivalent to the MSbar result. The anomalous dimensions of the scalar, vector and tensor currents are then determined in the RI' scheme at three loops by c...
0906.2474
Claude Duhr
Neil D. Christensen, Priscila de Aquino, Celine Degrande, Claude Duhr, Benjamin Fuks, Michel Herquet, Fabio Maltoni, Steffen Schumann
A comprehensive approach to new physics simulations
100 pages, 3 figures, 25 tables
Eur.Phys.J.C71:1541,2011
10.1140/epjc/s10052-011-1541-5
CP3-09-24, HD-THEP-09-11, IPHC-PHENO-09-01, MSUHEP-090612, NIKHEF-2009-009
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We describe a framework to develop, implement and validate any perturbative Lagrangian-based particle physics model for further theoretical, phenomenological and experimental studies. The starting point is FeynRules, a Mathematica package that allows to generate Feynman rules for any Lagrangian and then, through dedi...
[ { "created": "Mon, 15 Jun 2009 19:28:10 GMT", "version": "v1" } ]
2011-02-11
[ [ "Christensen", "Neil D.", "" ], [ "de Aquino", "Priscila", "" ], [ "Degrande", "Celine", "" ], [ "Duhr", "Claude", "" ], [ "Fuks", "Benjamin", "" ], [ "Herquet", "Michel", "" ], [ "Maltoni", "Fabio", "" ]...
We describe a framework to develop, implement and validate any perturbative Lagrangian-based particle physics model for further theoretical, phenomenological and experimental studies. The starting point is FeynRules, a Mathematica package that allows to generate Feynman rules for any Lagrangian and then, through dedica...
2406.00086
Suhail Khan
Suhail Khan, Ajay Bassi, Rathin Adhikari
Leptogenesis in exponential $f(R)$ gravity model
6 pages, 3 figures
null
null
null
hep-ph gr-qc hep-th
http://creativecommons.org/licenses/by/4.0/
We show that gravitational leptogenesis with dynamical $CPT$ breaking in an expanding universe can be reconciled with exponential $f(R)$ gravity models with axion as cold dark matter. For $L$ violating interactions, we consider both non-supersymmetric model with heavy right handed neutrino decay and supersymmetric mo...
[ { "created": "Fri, 31 May 2024 14:27:39 GMT", "version": "v1" } ]
2024-06-04
[ [ "Khan", "Suhail", "" ], [ "Bassi", "Ajay", "" ], [ "Adhikari", "Rathin", "" ] ]
We show that gravitational leptogenesis with dynamical $CPT$ breaking in an expanding universe can be reconciled with exponential $f(R)$ gravity models with axion as cold dark matter. For $L$ violating interactions, we consider both non-supersymmetric model with heavy right handed neutrino decay and supersymmetric mode...
hep-ph/9902317
Peter Molnar
Peter Molnar and Martin W. Gruenewald
Measuring WWZ and WWgamma coupling constants with Z-pole data
6 pages, 2 tables, 4 figures
Phys.Lett. B461 (1999) 149-154
10.1016/S0370-2693(99)00815-1
HUB-EP/99/06
hep-ph
null
Triple gauge boson couplings between Z, gamma and the W boson are determined by exploiting their impact on radiative corrections to fermion-pair production in e+e- interactions at centre-of-mass energies near the Z-pole. Recent values of observables in the electroweak part of the Standard model are used to determine ...
[ { "created": "Thu, 11 Feb 1999 13:23:08 GMT", "version": "v1" }, { "created": "Wed, 24 Feb 1999 11:12:18 GMT", "version": "v2" } ]
2009-10-31
[ [ "Molnar", "Peter", "" ], [ "Gruenewald", "Martin W.", "" ] ]
Triple gauge boson couplings between Z, gamma and the W boson are determined by exploiting their impact on radiative corrections to fermion-pair production in e+e- interactions at centre-of-mass energies near the Z-pole. Recent values of observables in the electroweak part of the Standard model are used to determine th...
2305.07087
Yan-Qing Zhao
Yan-Qing Zhao and Defu Hou
Configuration entropy of $\Upsilon(1S)$ state in strong coupling plasma
8 pages, 8 figures
null
10.1016/j.physletb.2023.138271
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
To better understand the effects of strong coupling and QCD at high temperature in QGP, by using holographic model, we investigate the dissociation effect of bottomonium under the higher-order curvature corrections to the supergravity action corresponding to the corrections of large N expansion of boundary CFT in the...
[ { "created": "Thu, 11 May 2023 18:50:48 GMT", "version": "v1" }, { "created": "Wed, 24 Jan 2024 03:36:54 GMT", "version": "v2" } ]
2024-01-25
[ [ "Zhao", "Yan-Qing", "" ], [ "Hou", "Defu", "" ] ]
To better understand the effects of strong coupling and QCD at high temperature in QGP, by using holographic model, we investigate the dissociation effect of bottomonium under the higher-order curvature corrections to the supergravity action corresponding to the corrections of large N expansion of boundary CFT in the s...
hep-ph/9909226
Einan Gardi
Einan Gardi, Georges Grunberg
Power corrections and renormalon resummation for the average thrust
Talk given by E. Gardi at the QCD'99 conference, Montpellier, July 1999. 4 pages, 3 figures
Nucl.Phys.Proc.Suppl. 86 (2000) 426-429
10.1016/S0920-5632(00)00599-5
PC - 734.0999
hep-ph
null
Infrared power corrections for the average thrust < T > in e+e- annihilation are analyzed in the framework of renormalon resummation, motivated by analogy with the skeleton expansion in QED and the BLM approach. Performing the ``massive gluon'' renormalon integral a renormalization scheme invariant result is obtained...
[ { "created": "Thu, 2 Sep 1999 12:18:54 GMT", "version": "v1" } ]
2009-10-31
[ [ "Gardi", "Einan", "" ], [ "Grunberg", "Georges", "" ] ]
Infrared power corrections for the average thrust < T > in e+e- annihilation are analyzed in the framework of renormalon resummation, motivated by analogy with the skeleton expansion in QED and the BLM approach. Performing the ``massive gluon'' renormalon integral a renormalization scheme invariant result is obtained. ...
2212.13757
Muhammad Rehman
Muhammad Rehman, Sven Heinemeyer
Non-Holomorphic Soft-Term Contributions to the Higgs-Boson Masses in the Feynman Diagrammatic Approach
null
null
10.1103/PhysRevD.107.095033
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the effects of non-holomprphic soft SUSY-breaking terms added to the Minimal Supersymmetric Standard Model (MSSM) on the Higgs-boson masses. The calculation of the non-holomorphic contributions is perfromed at the one-loop level in the Feynman diagramatic approach. After generating a FeynArts model file with...
[ { "created": "Wed, 28 Dec 2022 09:16:20 GMT", "version": "v1" }, { "created": "Sat, 31 Dec 2022 04:57:26 GMT", "version": "v2" } ]
2023-06-07
[ [ "Rehman", "Muhammad", "" ], [ "Heinemeyer", "Sven", "" ] ]
We study the effects of non-holomprphic soft SUSY-breaking terms added to the Minimal Supersymmetric Standard Model (MSSM) on the Higgs-boson masses. The calculation of the non-holomorphic contributions is perfromed at the one-loop level in the Feynman diagramatic approach. After generating a FeynArts model file with t...
hep-ph/9707534
Vadim Troitsky
A.F. Krutov (Samara Univ.) and V.E. Troitsky (NPI, Moscow Univ.)
Relativistic Effects in Two-Body Systems: pi- and K-mesons and Deuteron
11 pages, latex, 7 .ps figures. Poster presented by V.T. at the 15th International Conference on Few-Body Problems in Physics, Groningen, July 22-26, 1997
null
null
null
hep-ph
null
The electromagnetic form factors of $\pi$ and $K$ mesons and deuteron are calculated in modified impulse approximation using instant form of relativistic Hamiltonian dynamics. The different model wave functions are used. Meson wave function parameters are fixed by fitting the mean square radius of meson. The internal...
[ { "created": "Thu, 31 Jul 1997 15:07:19 GMT", "version": "v1" } ]
2007-05-23
[ [ "Krutov", "A. F.", "", "Samara Univ." ], [ "Troitsky", "V. E.", "", "NPI, Moscow Univ." ] ]
The electromagnetic form factors of $\pi$ and $K$ mesons and deuteron are calculated in modified impulse approximation using instant form of relativistic Hamiltonian dynamics. The different model wave functions are used. Meson wave function parameters are fixed by fitting the mean square radius of meson. The internal q...
hep-ph/0208234
Piotr Niezurawski
P. Niezurawski, A.F. Zarnecki, M. Krawczyk
The SM Higgs-boson production in gamma gamma -> h -> bb at the Photon Collider at TESLA
11 pages, 7 figures; minor changes, references added; submitted to ICHEP'2002
Acta Phys.Polon. B34 (2003) 177-188
null
CERN-TH/2002-166, IFT - 29/2002
hep-ph
null
Measuring the Gamma(h -> gamma gamma)Br(h -> bb) decay at the photon collider at TESLA is studied for a Standard Model Higgs boson of mass m_h = 120 GeV. The main background due to the process gamma gamma -> QQ(g), where Q = b,c, is estimated using the NLO QCD program (G. Jikia); the results obtained are compared wit...
[ { "created": "Mon, 26 Aug 2002 13:10:17 GMT", "version": "v1" }, { "created": "Fri, 6 Sep 2002 14:37:59 GMT", "version": "v2" } ]
2007-05-23
[ [ "Niezurawski", "P.", "" ], [ "Zarnecki", "A. F.", "" ], [ "Krawczyk", "M.", "" ] ]
Measuring the Gamma(h -> gamma gamma)Br(h -> bb) decay at the photon collider at TESLA is studied for a Standard Model Higgs boson of mass m_h = 120 GeV. The main background due to the process gamma gamma -> QQ(g), where Q = b,c, is estimated using the NLO QCD program (G. Jikia); the results obtained are compared with ...
hep-ph/9408231
null
E. Pallante
The hadronic vacuum polarization contribution to the muon g-2 in the quark-resonance model
15 pages (Latex), 1 postscript figure appended, preprint LNF 94/031 (P), ROM2F 94/12
Phys.Lett. B341 (1994) 221-227
10.1016/0370-2693(94)90313-1
null
hep-ph
null
The hadronic vacuum polarization contribution to the anomalous magnetic moment of the muon is parametrized by using the quark-resonance model formulated in \cite{QR}. In this context a recent prediction obtained within the ENJL model \cite{RAF} can be affected by two additional contributions: the next to leading corr...
[ { "created": "Thu, 4 Aug 1994 16:15:39 GMT", "version": "v1" } ]
2009-10-28
[ [ "Pallante", "E.", "" ] ]
The hadronic vacuum polarization contribution to the anomalous magnetic moment of the muon is parametrized by using the quark-resonance model formulated in \cite{QR}. In this context a recent prediction obtained within the ENJL model \cite{RAF} can be affected by two additional contributions: the next to leading correc...
1811.01210
Suprabh Prakash
Mohammad Nizam, Suman Bharti, Suprabh Prakash, Ushak Rahaman, S. Uma Sankar
Tensions between the appearance data of T2K and NOvA
matches the published version
Mod.Phys.Lett.A 35 (2019) 06, 2050021
10.1142/S0217732320500212
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
The long baseline neutrino experiments, T2K and NOvA, have taken significant amount of data in each of the four channels: (a) $\nu_\mu$ disappearance, (b) $\bar\nu_\mu$ disappearance (c) $\nu_e$ appearance and (d) $\bar\nu_e$ appearance. There is a mild tension between the disappearance and the appearance data sets o...
[ { "created": "Sat, 3 Nov 2018 13:16:32 GMT", "version": "v1" }, { "created": "Wed, 11 Mar 2020 22:27:43 GMT", "version": "v2" } ]
2020-03-13
[ [ "Nizam", "Mohammad", "" ], [ "Bharti", "Suman", "" ], [ "Prakash", "Suprabh", "" ], [ "Rahaman", "Ushak", "" ], [ "Sankar", "S. Uma", "" ] ]
The long baseline neutrino experiments, T2K and NOvA, have taken significant amount of data in each of the four channels: (a) $\nu_\mu$ disappearance, (b) $\bar\nu_\mu$ disappearance (c) $\nu_e$ appearance and (d) $\bar\nu_e$ appearance. There is a mild tension between the disappearance and the appearance data sets of ...
hep-ph/9506299
Xuemin Jin
Xuemin Jin
Baryon QCD sum rules in an external isovector-scalar field and baryon isospin mass splittings
23 pages, ReVTeX, 8 figures can be obtained from the author, to appear in Phys. Rev. D
Phys.Rev. D52 (1995) 2964-2976
10.1103/PhysRevD.52.2964
TRI-PP-95-13
hep-ph
null
Within the QCD sum-rule approach in an external field, we calculate the baryon matrix element of isovector-scalar current, $H_{\rm B}=\langle B|\overline{u}u- \overline{d}d|B\rangle/2M_{\rm B}$, for octet baryons, which appears in the response of the correlator of baryon interpolating fields to a constant isovector-s...
[ { "created": "Mon, 12 Jun 1995 18:23:07 GMT", "version": "v1" } ]
2016-09-01
[ [ "Jin", "Xuemin", "" ] ]
Within the QCD sum-rule approach in an external field, we calculate the baryon matrix element of isovector-scalar current, $H_{\rm B}=\langle B|\overline{u}u- \overline{d}d|B\rangle/2M_{\rm B}$, for octet baryons, which appears in the response of the correlator of baryon interpolating fields to a constant isovector-sca...
1502.03105
Ivo de Medeiros Varzielas
Gustavo C. Branco, Ivo de Medeiros Varzielas, Steve F. King
Invariant approach to CP in family symmetry models
4 pages plus references. v2: to be published in PRD
Phys. Rev. D 92, 036007 (2015)
10.1103/PhysRevD.92.036007
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose the use of basis invariants, valid for any choice of CP transformation, as a powerful approach to studying specific models of CP violation in the presence of discrete family symmetries. We illustrate the virtues of this approach for examples based on $A_4$ and $\Delta(27)$ family symmetries. For $A_4$, we ...
[ { "created": "Tue, 10 Feb 2015 21:00:18 GMT", "version": "v1" }, { "created": "Mon, 3 Aug 2015 14:31:25 GMT", "version": "v2" } ]
2015-08-19
[ [ "Branco", "Gustavo C.", "" ], [ "Varzielas", "Ivo de Medeiros", "" ], [ "King", "Steve F.", "" ] ]
We propose the use of basis invariants, valid for any choice of CP transformation, as a powerful approach to studying specific models of CP violation in the presence of discrete family symmetries. We illustrate the virtues of this approach for examples based on $A_4$ and $\Delta(27)$ family symmetries. For $A_4$, we sh...
hep-ph/9305275
Glennys R. Farrar
Glennys R. Farrar and M. E. Shaposhnikov
Baryon Asymmetry of the Universe in the Standard Model
121pp plus 14 figures, CERN-TH.6734/93 and RU-93-11. latex. This is an extended version of the preprint originally issued in May, 1993. It corrects some typographical errors and has been somewhat reorganized (e.g., moving more to the appendices) and elaborated (especially the section on analytic results) in ord...
Phys.Rev.D50:774,1994
10.1103/PhysRevD.50.774
null
hep-ph astro-ph
null
We study the interactions of quarks and antiquarks with the changing Higgs field during the electroweak phase transition, including quantum mechanical and some thermal effects, with the only source of CP violation being the known CKM phase. The magnitude and sign of the predicted BAU agrees with the observed value, w...
[ { "created": "Mon, 17 May 1993 15:58:37 GMT", "version": "v1" }, { "created": "Mon, 22 Nov 1993 17:32:26 GMT", "version": "v2" } ]
2010-11-01
[ [ "Farrar", "Glennys R.", "" ], [ "Shaposhnikov", "M. E.", "" ] ]
We study the interactions of quarks and antiquarks with the changing Higgs field during the electroweak phase transition, including quantum mechanical and some thermal effects, with the only source of CP violation being the known CKM phase. The magnitude and sign of the predicted BAU agrees with the observed value, wit...
1311.6743
Loutfy Abou Salem L.I. Abou-Salem
L. I. Abou-Salem
A study on baryons spectroscopy using digamma-function as interacting potential
null
null
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the present work, the interacting potential form between quarks inside a baryon is taken to be proportional to the digamma-function. Using the Jacobi-coordinates the three body wave equation is solved to calculate the different states of the considered baryons. The present model contains only two adjustable parame...
[ { "created": "Tue, 26 Nov 2013 17:19:44 GMT", "version": "v1" } ]
2013-11-27
[ [ "Abou-Salem", "L. I.", "" ] ]
In the present work, the interacting potential form between quarks inside a baryon is taken to be proportional to the digamma-function. Using the Jacobi-coordinates the three body wave equation is solved to calculate the different states of the considered baryons. The present model contains only two adjustable paramete...
1606.01883
Chi Xiong
Chi Xiong
A de-gauging approach to physics beyond the Standard Model
10 pages, 2 figures, based on the talk given in the Conference "New Physics at LHC", March 2016, Singapore
null
10.1142/9789813145504_0027
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
By studying the t-J model for superconductivity, the Pati-Salam model and the Haplon model for particle unifications, we extract their common feature which is the spin-charge separation of fermions. This becomes a de-gauging process for charged fermions by considering them as bound states of a neutral fermion and cha...
[ { "created": "Mon, 6 Jun 2016 19:49:27 GMT", "version": "v1" } ]
2016-11-23
[ [ "Xiong", "Chi", "" ] ]
By studying the t-J model for superconductivity, the Pati-Salam model and the Haplon model for particle unifications, we extract their common feature which is the spin-charge separation of fermions. This becomes a de-gauging process for charged fermions by considering them as bound states of a neutral fermion and charg...
2401.10621
Peter Zeiler Skands
Natalia Korneeva, Anton Karneyeu, and Peter Skands
Event-Generator Validation with MCPLOTS and LHC@home
null
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We document several recent updates to the MCPLOTS event-generator validation resource. The project is based on the RIVET analysis library and harnesses volunteer computing provided by LHC@home to generate high-statistics MC comparisons to data. Users interact with the resource via a simple website, mcplots.cern.ch, w...
[ { "created": "Fri, 19 Jan 2024 10:54:02 GMT", "version": "v1" }, { "created": "Sat, 29 Jun 2024 09:25:52 GMT", "version": "v2" } ]
2024-07-02
[ [ "Korneeva", "Natalia", "" ], [ "Karneyeu", "Anton", "" ], [ "Skands", "Peter", "" ] ]
We document several recent updates to the MCPLOTS event-generator validation resource. The project is based on the RIVET analysis library and harnesses volunteer computing provided by LHC@home to generate high-statistics MC comparisons to data. Users interact with the resource via a simple website, mcplots.cern.ch, whi...
1205.1913
Elvira Cervero
Elvira Cerver\'o
A vectophobic 2HDM in the light of the LHC
4 pages, 2 figures, Contribution to the 47th Rencontres de Moriond Electroweak session 2012 proceedings
null
null
CP3-12-24
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider recent LHC flavour and Higgs results to constraint a custodial vectophobic Two-Higgs-Doublet-Model (2HDM) where the Minimal Flavour Violation principle (MFV) is implemented to suppress (pseudo)scalar induced flavour changing neutral currents (FCNC).
[ { "created": "Wed, 9 May 2012 08:53:19 GMT", "version": "v1" } ]
2012-05-10
[ [ "Cerveró", "Elvira", "" ] ]
We consider recent LHC flavour and Higgs results to constraint a custodial vectophobic Two-Higgs-Doublet-Model (2HDM) where the Minimal Flavour Violation principle (MFV) is implemented to suppress (pseudo)scalar induced flavour changing neutral currents (FCNC).
hep-ph/0611327
Alexander Ilyichev
A.Ilyichev, S.Lukashevich, N.Maksimenko
Static polarizability vertex and its applications
5 pages, 2 figures. Talk given at 2006 International Conference on Problems of Interaction of Radiation with Matter, Gomel, Belarus, 1-3 November, 2006
Proceedings of the F. Scorina Gomel State University 6 part 1 (2006) 82-86
null
null
hep-ph
null
Using the Lagrangian that was developed on the corresponding principle between the moving medium electrodynamic and quantum field theory the explicit expression for the static polarizability vertex has been obtained. The applications of this vertex for calculations of real Compton scattering amplitude as well as the ...
[ { "created": "Mon, 27 Nov 2006 10:49:50 GMT", "version": "v1" } ]
2007-05-23
[ [ "Ilyichev", "A.", "" ], [ "Lukashevich", "S.", "" ], [ "Maksimenko", "N.", "" ] ]
Using the Lagrangian that was developed on the corresponding principle between the moving medium electrodynamic and quantum field theory the explicit expression for the static polarizability vertex has been obtained. The applications of this vertex for calculations of real Compton scattering amplitude as well as the im...
hep-ph/0210132
Christian Weiss
C. Weiss (Regensburg University)
Modeling power corrections to the Bjorken sum rule for the neutrino structure function F_1
3 pages, 1 figure, uses iopart.cls. Proceedings of the 4th NuFact'02 Workshop "Neutrino Factories based on Muon Storage Rings", Imperial College, London, July 1-6, 2002
J.Phys.G29:1981-1984,2003
10.1088/0954-3899/29/8/385
null
hep-ph
null
Direct measurements of the the structure functions F_1^{nu p} and F_1^{nu n} at a neutrino factory would allow for an accurate extraction of alpha_s from the Q^2-dependence of the Bjorken sum rule, complementing that based on the Gross-Llewellyn-Smith sum rule for F_3. We estimate the power (1/Q^2-) corrections to th...
[ { "created": "Tue, 8 Oct 2002 19:56:12 GMT", "version": "v1" } ]
2008-11-26
[ [ "Weiss", "C.", "", "Regensburg University" ] ]
Direct measurements of the the structure functions F_1^{nu p} and F_1^{nu n} at a neutrino factory would allow for an accurate extraction of alpha_s from the Q^2-dependence of the Bjorken sum rule, complementing that based on the Gross-Llewellyn-Smith sum rule for F_3. We estimate the power (1/Q^2-) corrections to the ...
2312.13417
Xavier Ponce Diaz
Arturo de Giorgi, Luca Merlo, Xavier Ponce D\'iaz, Stefano Rigolin
The Minimal Massive Majoron Seesaw Model
38 pages, 7 figures, 3 appendices. V2: matches published version
JHEP 03 (2024) 094
10.1007/JHEP03(2024)094
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
A convincing explanation of the smallness of neutrino masses is represented by the Type-I Seesaw mechanism, where the two measured neutrino mass differences can be generated by introducing at least two right-handed neutrinos. In an ultraviolet complete model, it is possible to dynamically generate the heavy Majorana ...
[ { "created": "Wed, 20 Dec 2023 20:40:12 GMT", "version": "v1" }, { "created": "Sun, 28 Apr 2024 14:22:54 GMT", "version": "v2" } ]
2024-04-30
[ [ "de Giorgi", "Arturo", "" ], [ "Merlo", "Luca", "" ], [ "Díaz", "Xavier Ponce", "" ], [ "Rigolin", "Stefano", "" ] ]
A convincing explanation of the smallness of neutrino masses is represented by the Type-I Seesaw mechanism, where the two measured neutrino mass differences can be generated by introducing at least two right-handed neutrinos. In an ultraviolet complete model, it is possible to dynamically generate the heavy Majorana sc...
hep-ph/9807313
Zhang
C. Boros, Meng Ta-chung, R. Rittel and Zhang Yang
Formation of color-singlet gluon-clusters and inelastic diffractive scattering. Part I: Theoretical arguments and experimental indications for self-organized criticality (SOC) in systems of interacting soft gluons
30 pages, 12 PS figures
null
null
null
hep-ph
null
It is proposed, that color-singlet gluon-clusters can be formed in hadrons as a consequence of self-organized criticality (SOC) in systems of interacting soft gluons, and that the properties of such spatiotemporal complexities can be probed experimentally by examing inelastic diffractive scattering. Theoretical argum...
[ { "created": "Thu, 9 Jul 1998 18:25:32 GMT", "version": "v1" }, { "created": "Wed, 10 Feb 1999 17:02:58 GMT", "version": "v2" } ]
2007-05-23
[ [ "Boros", "C.", "" ], [ "Ta-chung", "Meng", "" ], [ "Rittel", "R.", "" ], [ "Yang", "Zhang", "" ] ]
It is proposed, that color-singlet gluon-clusters can be formed in hadrons as a consequence of self-organized criticality (SOC) in systems of interacting soft gluons, and that the properties of such spatiotemporal complexities can be probed experimentally by examing inelastic diffractive scattering. Theoretical argumen...
0809.1099
Christian Bauer
Christian W. Bauer, Oscar Cata and Grigory Ovanesyan
On different ways to quantize Soft-Collinear Effective Theory
8 pages, 2 figures
null
null
null
hep-ph
http://creativecommons.org/licenses/publicdomain/
Collinear fields in soft collinear effective theory (SCET) can be made invariant under collinear gauge transformations by multiplying them with collinear Wilson lines. We discuss how we can quantize SCET directly in terms of these gauge invariant fields, allowing to directly calculate S matrix elements using the gaug...
[ { "created": "Sun, 7 Sep 2008 14:33:27 GMT", "version": "v1" } ]
2008-09-09
[ [ "Bauer", "Christian W.", "" ], [ "Cata", "Oscar", "" ], [ "Ovanesyan", "Grigory", "" ] ]
Collinear fields in soft collinear effective theory (SCET) can be made invariant under collinear gauge transformations by multiplying them with collinear Wilson lines. We discuss how we can quantize SCET directly in terms of these gauge invariant fields, allowing to directly calculate S matrix elements using the gauge ...
hep-ph/0006342
Charles A. Nelson
Charles A. Nelson and L. J. Adler, Jr
Testing for New Couplings in Top Quark Decay
Reason for Replacement: To supply larger figures and correct some typos. Contributed Paper for ICHEP2000. 3 tables; 8 sets of figures; no macros
null
null
SUNY BING 6/25/00
hep-ph
null
Tests of the Lorentz structure of t --> W b decay will be carried out at the Tevatron, and later at the LHC and at a NLC. To quantitatively assay future measurements of competing observables, we consider the (V-A) coupling values of the helicity decay parameters versus "(V-A) + Single Additional Lorentz Structures". ...
[ { "created": "Thu, 29 Jun 2000 20:08:01 GMT", "version": "v1" }, { "created": "Mon, 10 Jul 2000 18:22:25 GMT", "version": "v2" } ]
2012-08-27
[ [ "Nelson", "Charles A.", "" ], [ "Adler,", "L. J.", "Jr" ] ]
Tests of the Lorentz structure of t --> W b decay will be carried out at the Tevatron, and later at the LHC and at a NLC. To quantitatively assay future measurements of competing observables, we consider the (V-A) coupling values of the helicity decay parameters versus "(V-A) + Single Additional Lorentz Structures". Th...
hep-ph/0008125
Melles
Michael Melles (PSI)
Precision Higgs physics at a $\gamma \gamma$ collider
6 pages, 3 epsfigures, Latex2e plus style files. Contribution to the International Workshop on High Energy Photon Photon Colliders at DESY, June 2000
Nucl.Instrum.Meth. A472 (2001) 128-132
10.1016/S0168-9002(01)01170-6
null
hep-ph
null
The loop induced coupling of an intermediate mass Higgs boson to two photons is a sensitive and unique measure for precision tests of physics beyond the Standard Model. In this work we summarize recent results on the expected precision of the partial $\Gamma (H \to \gamma \gamma)$ width at the $\gamma \gamma$ option ...
[ { "created": "Sat, 12 Aug 2000 14:01:13 GMT", "version": "v1" } ]
2009-10-31
[ [ "Melles", "Michael", "", "PSI" ] ]
The loop induced coupling of an intermediate mass Higgs boson to two photons is a sensitive and unique measure for precision tests of physics beyond the Standard Model. In this work we summarize recent results on the expected precision of the partial $\Gamma (H \to \gamma \gamma)$ width at the $\gamma \gamma$ option of...
hep-ph/9909486
Stephan Paul
Stephan Paul
Strangeness in Hadronic Systems
11 pages, tex-file (.tex) and pictures (.eps) are included. Invited Talk - to appear in the proceedings of the PANIC99 Conference, held in Uppsala (Sweden), June 1999
Nucl.Phys. A663 (2000) 74-84
10.1016/S0375-9474(99)00574-6
null
hep-ph
null
This paper reviews different aspects of hadronic systems with strange quarks. It reviews production, spectroscopy and decay of baryons and hypernuclei with emphasis on recent results obtained in this field. It includes a comparison of different systems doped with strange (or heavy) quarks, emphasizing the single part...
[ { "created": "Thu, 23 Sep 1999 11:57:38 GMT", "version": "v1" } ]
2009-10-31
[ [ "Paul", "Stephan", "" ] ]
This paper reviews different aspects of hadronic systems with strange quarks. It reviews production, spectroscopy and decay of baryons and hypernuclei with emphasis on recent results obtained in this field. It includes a comparison of different systems doped with strange (or heavy) quarks, emphasizing the single partic...
hep-ph/9612326
A. A. Pivovarov
A.L. Kataev, N.V. Krasnikov, A.A. Pivovarov
Two-loop calculations for the propagators of gluonic currents. Erratum
3 pages, Latex
Nucl.Phys. B198 (1982) 508-518; Erratum-ibid. B490 (1997) 505-507
10.1016/S0550-3213(97)00101-6
null
hep-ph
null
This is an erratum to the paper published in Nucl. Phys. B198(1982)508.
[ { "created": "Wed, 11 Dec 1996 16:15:10 GMT", "version": "v1" } ]
2009-10-30
[ [ "Kataev", "A. L.", "" ], [ "Krasnikov", "N. V.", "" ], [ "Pivovarov", "A. A.", "" ] ]
This is an erratum to the paper published in Nucl. Phys. B198(1982)508.
hep-ph/9902206
Pankaj Jain
Pankaj Jain, John P. Ralston and George M. Frichter
Neutrino Absorption Tomography of the Earth's Interior using Isotropic Ultra-high Energy Flux
7 pages, 5 figures, revtex (uses psfig.tex)
Astropart.Phys.12:193-198,1999
10.1016/S0927-6505(99)00088-2
IITK-HEP-1-7
hep-ph astro-ph hep-ex
null
We study the feasibility of using an isotropic flux of cosmic neutrinos in the energy range of 10 to 10000 TeV to study the interior structure of Earth. The angular distribution of events in a $\sim {\rm km}^3$-scale neutrino telescope can be inverted to yield information on the Earth's mass distribution that is inde...
[ { "created": "Sun, 31 Jan 1999 10:06:28 GMT", "version": "v1" } ]
2011-05-23
[ [ "Jain", "Pankaj", "" ], [ "Ralston", "John P.", "" ], [ "Frichter", "George M.", "" ] ]
We study the feasibility of using an isotropic flux of cosmic neutrinos in the energy range of 10 to 10000 TeV to study the interior structure of Earth. The angular distribution of events in a $\sim {\rm km}^3$-scale neutrino telescope can be inverted to yield information on the Earth's mass distribution that is indepe...
1904.12516
Teruyuki Kitabayashi
Teruyuki Kitabayashi
Clockwork origin of neutrino mixings
9 pages, 4 figures. Accepted for publication in Physical Review D
Phys. Rev. D 100, 035019 (2019)
10.1103/PhysRevD.100.035019
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The clockwork mechanism provides a natural way to obtain hierarchical masses and couplings in a theory. We propose a clockwork model that has nine clockwork generations. In this model, the candidates of the origin of the neutrino mixings are nine Yukawa mass matrix elements $Y^{a\beta}$ that connect neutrinos and clo...
[ { "created": "Mon, 29 Apr 2019 09:08:14 GMT", "version": "v1" }, { "created": "Sat, 10 Aug 2019 06:43:58 GMT", "version": "v2" }, { "created": "Wed, 14 Aug 2019 22:05:25 GMT", "version": "v3" } ]
2019-08-28
[ [ "Kitabayashi", "Teruyuki", "" ] ]
The clockwork mechanism provides a natural way to obtain hierarchical masses and couplings in a theory. We propose a clockwork model that has nine clockwork generations. In this model, the candidates of the origin of the neutrino mixings are nine Yukawa mass matrix elements $Y^{a\beta}$ that connect neutrinos and clock...
hep-ph/0010050
Jochen Heitger
Jochen Heitger (DESY Zeuthen)
Applications of non-perturbative renormalization
Talk at ICHEP00 (Lattice Field Theory session), 6 pages, latex2e, 3 Postscript figures, uses package epsfig
null
null
DESY 00-138
hep-ph hep-lat
null
A short survey of the renormalization problem in QCD and its non-perturbative solution by means of numerical simulations on the lattice is given. Most emphasis is on scale dependent renormalizations, which can be reliably addressed via a recursive finite-size scaling procedure employing a suitable intermediate renorm...
[ { "created": "Fri, 6 Oct 2000 14:22:49 GMT", "version": "v1" } ]
2007-05-23
[ [ "Heitger", "Jochen", "", "DESY Zeuthen" ] ]
A short survey of the renormalization problem in QCD and its non-perturbative solution by means of numerical simulations on the lattice is given. Most emphasis is on scale dependent renormalizations, which can be reliably addressed via a recursive finite-size scaling procedure employing a suitable intermediate renormal...
hep-ph/0001159
Pisanti Ofelia
F. Buccella, O. Pisanti, and L. Rosa
The Strange Quark Problem in the Framework of Statistical Distributions
29 pages LaTeX, 13 figures
null
null
DSF-42/99
hep-ph
null
A large class of polarized and unpolarized deep inelastic data is successfully described with Fermi-Dirac functions for the non-diffractive part of quark parton distributions. The NLO approach used here improves the agreement with experiment of the previous LO work. We get a broader distribution for the strange parto...
[ { "created": "Mon, 17 Jan 2000 11:03:57 GMT", "version": "v1" } ]
2007-05-23
[ [ "Buccella", "F.", "" ], [ "Pisanti", "O.", "" ], [ "Rosa", "L.", "" ] ]
A large class of polarized and unpolarized deep inelastic data is successfully described with Fermi-Dirac functions for the non-diffractive part of quark parton distributions. The NLO approach used here improves the agreement with experiment of the previous LO work. We get a broader distribution for the strange parton ...
hep-ph/0508265
Andreas Vogt
S. Moch (DESY, Zeuthen), A. Vogt (Durham Univ., IPPP)
Higher-Order Soft Corrections to Lepton Pair and Higgs Boson Production
11 pages, LaTeX, 2 eps-figures. Slightly revised text of journal version, with two new references. Misprint in eq. (13) corrected
Phys.Lett.B631:48-57,2005
10.1016/j.physletb.2005.09.061
DESY 05-152, SFB/CPP-05-46, DCPT/05/110, IPPP/05/55
hep-ph
null
Utilizing recent three-loop results on the quark and gluon splitting functions and form factors, we derive the complete threshold-enhanced third-order (N^3LO) QCD corrections to the total cross sections for the production of lepton pairs and the Higgs boson in hadron collisions. These results, for the latter case obt...
[ { "created": "Thu, 25 Aug 2005 14:11:57 GMT", "version": "v1" }, { "created": "Sun, 12 Nov 2006 19:53:01 GMT", "version": "v2" } ]
2010-04-06
[ [ "Moch", "S.", "", "DESY, Zeuthen" ], [ "Vogt", "A.", "", "Durham Univ., IPPP" ] ]
Utilizing recent three-loop results on the quark and gluon splitting functions and form factors, we derive the complete threshold-enhanced third-order (N^3LO) QCD corrections to the total cross sections for the production of lepton pairs and the Higgs boson in hadron collisions. These results, for the latter case obtai...
hep-ph/9912397
Werner Rodejohann
G. G. Raffelt (Munich, Max Planck Inst.), W. Rodejohann (Dortmund U.)
Massive Neutrinos in Astrophysics
Lecture held by G. Raffelt at the 4th national Summer School "Grundlagen und neue Methoden der theoretischen Physik", 31 August -- 11 September 1998 in Saalburg, Germany, 46 pages, 9 figures
null
null
DO-TH 99/22
hep-ph
null
An introduction to various topics in neutrino astrophysics is given for students with little prior exposure to this field. We explain neutrino production and propagation in stars, neutrino oscillations, and experimental searches for this effect. We also touch upon the cosmological role of neutrinos. A number of exerc...
[ { "created": "Fri, 17 Dec 1999 13:01:28 GMT", "version": "v1" } ]
2007-05-23
[ [ "Raffelt", "G. G.", "", "Munich, Max Planck Inst." ], [ "Rodejohann", "W.", "", "Dortmund U." ] ]
An introduction to various topics in neutrino astrophysics is given for students with little prior exposure to this field. We explain neutrino production and propagation in stars, neutrino oscillations, and experimental searches for this effect. We also touch upon the cosmological role of neutrinos. A number of exercis...
hep-ph/9509311
Werner Koepf
L.L. Frankfurt, W. Koepf and M. Strikman
Hard diffractive electroproduction of vector mesons in QCD
64 pages, REVTeX, 16 figures optionally included using epsfig.sty, Revisions in regards to Charmonium photo- and electroproduction, final version to appear in Phys. Rev. D
Phys.Rev. D54 (1996) 3194-3215
10.1103/PhysRevD.54.3194
TAUP-2290-95
hep-ph
null
Hard diffractive electroproduction of longitudinally polarized vector mesons is calculated within the leading $\alpha_s\ln{Q^2\over\Lambda_{QCD}^2}$ approximation of QCD using the leading order parton densities within the nucleon. Novel QCD features of the production of excited states and of the restoration of flavor...
[ { "created": "Sun, 17 Sep 1995 08:38:20 GMT", "version": "v1" }, { "created": "Mon, 4 Mar 1996 00:09:27 GMT", "version": "v2" }, { "created": "Wed, 5 Jun 1996 20:22:58 GMT", "version": "v3" } ]
2009-10-28
[ [ "Frankfurt", "L. L.", "" ], [ "Koepf", "W.", "" ], [ "Strikman", "M.", "" ] ]
Hard diffractive electroproduction of longitudinally polarized vector mesons is calculated within the leading $\alpha_s\ln{Q^2\over\Lambda_{QCD}^2}$ approximation of QCD using the leading order parton densities within the nucleon. Novel QCD features of the production of excited states and of the restoration of flavor s...
hep-ph/9705361
Alexander Kusenko
Alexander Kusenko (CERN)
Phase transitions precipitated by solitosynthesis
12 pages, 2 figures, latex, epsf
Phys.Lett. B406 (1997) 26-33
10.1016/S0370-2693(97)00700-4
CERN-TH/97-106
hep-ph gr-qc hep-th
null
Solitosynthesis of Q-balls in the false vacuum can result in a phase transition of a new kind. Formation and subsequent growth of Q-balls via the charge accretion proceeds until the solitons reach a critical charge, at which point it becomes energetically favorable for the Q-ball interior to expand filling space with...
[ { "created": "Tue, 20 May 1997 10:30:35 GMT", "version": "v1" } ]
2009-10-30
[ [ "Kusenko", "Alexander", "", "CERN" ] ]
Solitosynthesis of Q-balls in the false vacuum can result in a phase transition of a new kind. Formation and subsequent growth of Q-balls via the charge accretion proceeds until the solitons reach a critical charge, at which point it becomes energetically favorable for the Q-ball interior to expand filling space with t...