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2203.16030
Hisaki Hatanaka
Shuichiro Funatsu, Hisaki Hatanaka, Yutaka Hosotani, Yuta Orikasa and Naoki Yamatsu
Bhabha scattering in the gauge-Higgs unification
22 pages, 8 figures, 3 tables (v2) comments added
null
10.1103/PhysRevD.106.015010
OU-HET-1108, KYUSHU-HET-237
hep-ph
http://creativecommons.org/licenses/by/4.0/
We examine effects of $Z'$ bosons in gauge-Higgs unification (GHU) models at $\mathrm{e}^{+}\mathrm{e}^{-}\to \mathrm{e}^{+}\mathrm{e}^{-}$ Bhabha scatterings. We evaluate differential cross sections in Bhabha scatterings including $Z'$ bosons in two types of $\mathrm{SO}(5) \times \mathrm{U}(1) \times \mathrm{SU}(3)...
[ { "created": "Wed, 30 Mar 2022 03:25:53 GMT", "version": "v1" }, { "created": "Mon, 20 Jun 2022 09:34:19 GMT", "version": "v2" } ]
2022-07-27
[ [ "Funatsu", "Shuichiro", "" ], [ "Hatanaka", "Hisaki", "" ], [ "Hosotani", "Yutaka", "" ], [ "Orikasa", "Yuta", "" ], [ "Yamatsu", "Naoki", "" ] ]
We examine effects of $Z'$ bosons in gauge-Higgs unification (GHU) models at $\mathrm{e}^{+}\mathrm{e}^{-}\to \mathrm{e}^{+}\mathrm{e}^{-}$ Bhabha scatterings. We evaluate differential cross sections in Bhabha scatterings including $Z'$ bosons in two types of $\mathrm{SO}(5) \times \mathrm{U}(1) \times \mathrm{SU}(3)$ ...
hep-ph/9910484
Angeles Faus-Golfe
J. Velasco, J. Perez-Peraza, A. Gallegos-Cruz, M. Alvarez-Madrigal, A. Faus-Golfe and A. Sanchez-Hertz
Proton-proton total cross sections estimations at very high energies
4 pages, 2 figures
null
null
null
hep-ph
null
Proton-proton total cross sections are measured with present day high energy colliders up to 2 TeV in the centre-of-mass of the system (10^{15}) eV in the laboratory). Several parameterizations, very succesful at low energies, can then be used to extrapolate the measured values and get estimations of cross sections t...
[ { "created": "Tue, 26 Oct 1999 08:41:14 GMT", "version": "v1" } ]
2007-05-23
[ [ "Velasco", "J.", "" ], [ "Perez-Peraza", "J.", "" ], [ "Gallegos-Cruz", "A.", "" ], [ "Alvarez-Madrigal", "M.", "" ], [ "Faus-Golfe", "A.", "" ], [ "Sanchez-Hertz", "A.", "" ] ]
Proton-proton total cross sections are measured with present day high energy colliders up to 2 TeV in the centre-of-mass of the system (10^{15}) eV in the laboratory). Several parameterizations, very succesful at low energies, can then be used to extrapolate the measured values and get estimations of cross sections to ...
hep-ph/9707526
George W. S. Hou
George Wei-Shu Hou
The Case for a Vector Glueball
4 pages, latex, one eps figures (included) [NOTE ADDED: Talk presented at the YITP International Workshop ``Recent Developments in QCD and Hadron Physics", Kyoto, Japan, December 16-18, 1996]
null
null
NTUTH-97-02
hep-ph
null
We argue that the $1^{--}$ glueball $O$ is much cleaner than other glueball candidates. Anomalously large $J/\psi \to \rho\pi, K^*\bar K$ decays and the scalar glueball mass scale suggest that $m_{O} \simeq m_{J/\psi}$.
[ { "created": "Thu, 31 Jul 1997 01:16:13 GMT", "version": "v1" }, { "created": "Sat, 2 Aug 1997 07:24:35 GMT", "version": "v2" } ]
2008-02-03
[ [ "Hou", "George Wei-Shu", "" ] ]
We argue that the $1^{--}$ glueball $O$ is much cleaner than other glueball candidates. Anomalously large $J/\psi \to \rho\pi, K^*\bar K$ decays and the scalar glueball mass scale suggest that $m_{O} \simeq m_{J/\psi}$.
1209.2328
Arindam Chatterjee
Arindam Chatterjee, Manuel Drees, Suchita Kulkarni
Radiative Corrections to the Neutralino Dark Matter Relic Density - an Effective Coupling Approach
37 pages, 6 figures
null
10.1103/PhysRevD.86.105025
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the framework of the minimal cosmological standard model, the $\Lambda$CDM model, the Dark Matter density is now known with an error of a few percent; this error is expected to shrink even further once PLANCK data are analyzed. Matching this precision by theoretical calculations implies that at least leading radia...
[ { "created": "Tue, 11 Sep 2012 14:30:58 GMT", "version": "v1" }, { "created": "Fri, 21 Sep 2012 12:26:31 GMT", "version": "v2" } ]
2013-05-30
[ [ "Chatterjee", "Arindam", "" ], [ "Drees", "Manuel", "" ], [ "Kulkarni", "Suchita", "" ] ]
In the framework of the minimal cosmological standard model, the $\Lambda$CDM model, the Dark Matter density is now known with an error of a few percent; this error is expected to shrink even further once PLANCK data are analyzed. Matching this precision by theoretical calculations implies that at least leading radiati...
hep-ph/0011032
Shabelski
Yu.M.Shabelski (Petersburg Nuclear Physics Institute, Gatchina, St.Petersburg, Russia)
The Role of Hadronization in Charm and Beauty Production
7 pages, no figures
null
null
null
hep-ph
null
We discuss the relative role of fragmentation and recombination processes for heavy flavour hadron production in different kinematical regions in high energy hadron-hadron and photon-hadron collisions. We predict several qualitative features which should be observed if our picture of heavy flavour production is consi...
[ { "created": "Thu, 2 Nov 2000 14:07:33 GMT", "version": "v1" } ]
2007-05-23
[ [ "Shabelski", "Yu. M.", "", "Petersburg Nuclear Physics Institute, Gatchina,\n St.Petersburg, Russia" ] ]
We discuss the relative role of fragmentation and recombination processes for heavy flavour hadron production in different kinematical regions in high energy hadron-hadron and photon-hadron collisions. We predict several qualitative features which should be observed if our picture of heavy flavour production is consist...
2309.06492
Salvador Urrea
Pilar Coloma, Justo Mart\'in-Albo, Salvador Urrea
Discovering Long-lived Particles at DUNE
35 pages, 11 Figures. v3: typos fixed, results unchanged
null
null
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
Long-lived particles (LLPs) arise in many theories beyond the Standard Model. These may be copiously produced from meson decays (or through their mixing with the LLP) at neutrino facilities and leave a visible decay signal in nearby neutrino detectors. We compute the expected sensitivity of the DUNE liquid argon (LAr...
[ { "created": "Tue, 12 Sep 2023 18:05:34 GMT", "version": "v1" }, { "created": "Mon, 16 Oct 2023 11:40:32 GMT", "version": "v2" }, { "created": "Thu, 25 Jan 2024 16:19:45 GMT", "version": "v3" } ]
2024-01-26
[ [ "Coloma", "Pilar", "" ], [ "Martín-Albo", "Justo", "" ], [ "Urrea", "Salvador", "" ] ]
Long-lived particles (LLPs) arise in many theories beyond the Standard Model. These may be copiously produced from meson decays (or through their mixing with the LLP) at neutrino facilities and leave a visible decay signal in nearby neutrino detectors. We compute the expected sensitivity of the DUNE liquid argon (LAr) ...
1503.07169
Andrea Massari
Andrea Massari, Eder Izaguirre, Rouven Essig, Andrea Albert, Elliott Bloom, German A. Gomez-Vargas
Strong Optimized Conservative Fermi-LAT Constraints on Dark Matter Models from the Inclusive Photon Spectrum
24 pages + appendices and references, 13 figures, accepted by PRD. Contact authors: Andrea Massari, Eder Izaguirre, and Rouven Essig
Phys. Rev. D 91, 083539 (2015)
10.1103/PhysRevD.91.083539
null
hep-ph astro-ph.CO astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We set conservative, robust constraints on the annihilation and decay of dark matter into various Standard Model final states under various assumptions about the distribution of the dark matter in the Milky Way halo. We use the inclusive photon spectrum observed by the Fermi Gamma-ray Space Telescope through its main...
[ { "created": "Tue, 24 Mar 2015 20:00:24 GMT", "version": "v1" } ]
2015-05-04
[ [ "Massari", "Andrea", "" ], [ "Izaguirre", "Eder", "" ], [ "Essig", "Rouven", "" ], [ "Albert", "Andrea", "" ], [ "Bloom", "Elliott", "" ], [ "Gomez-Vargas", "German A.", "" ] ]
We set conservative, robust constraints on the annihilation and decay of dark matter into various Standard Model final states under various assumptions about the distribution of the dark matter in the Milky Way halo. We use the inclusive photon spectrum observed by the Fermi Gamma-ray Space Telescope through its main i...
hep-ph/0601112
Frank J. Petriello
A. Juste, Y. Kiyo, F. Petriello, T. Teubner, K. Agashe, P. Batra, U. Baur, C.F. Berger, J.A.R. Cembranos, A. Gehrmann-De Ridder, T. Gehrmann, E.W.N. Glover, S. Godfrey, A. Hoang, M. Perelstein, Z. Sullivan, T. Tait, S. Zhu
Report of the 2005 Snowmass Top/QCD Working Group
39 pages, many figs; typos fixed and refs added. Contributed to the 2005 International Linear Collider Physics and Detector Workshop and 2nd ILC Accelerator Workshop, Snowmass, Colorado, 14-27 Aug 2005
ECONFC0508141:PLEN0043,2005
null
null
hep-ph hep-ex
null
This report discusses several topics in both top quark physics and QCD at an International Linear Collider (ILC). Issues such as measurements at the $t\bar{t}$ threshold, including both theoretical and machine requirements, and the determination of electroweak top quark couplings, are reviewed. New results concerning...
[ { "created": "Fri, 13 Jan 2006 20:49:16 GMT", "version": "v1" }, { "created": "Fri, 27 Jan 2006 17:01:22 GMT", "version": "v2" } ]
2008-11-26
[ [ "Juste", "A.", "" ], [ "Kiyo", "Y.", "" ], [ "Petriello", "F.", "" ], [ "Teubner", "T.", "" ], [ "Agashe", "K.", "" ], [ "Batra", "P.", "" ], [ "Baur", "U.", "" ], [ "Berger", "C. F.", "" ...
This report discusses several topics in both top quark physics and QCD at an International Linear Collider (ILC). Issues such as measurements at the $t\bar{t}$ threshold, including both theoretical and machine requirements, and the determination of electroweak top quark couplings, are reviewed. New results concerning t...
hep-ph/9807317
Thabit Barakat
Thabit Barakat
The K^{+}--->\pi^{+}\nu\bar{nu} Rare Decay in Two Higgs Doublet Model
12 pages, latex file, 3 figures, postscript files
Nuovo Cim. A112 (1999) 697-704
10.1007/BF03035878
CV-HEP/98-03
hep-ph
null
The rare k+--->pi+ \nu \bar{\nu} decay is investigated in the context of type II two-Higgs-doublet model (2HDM). By using the existing experimental data of the branching ratio, restrictions on the free parameters of the model m_H, and tan\beta are obtained: tan\beta belong to the range 0.7- o.8, and m_H belong to the...
[ { "created": "Thu, 9 Jul 1998 20:18:55 GMT", "version": "v1" } ]
2009-10-31
[ [ "Barakat", "Thabit", "" ] ]
The rare k+--->pi+ \nu \bar{\nu} decay is investigated in the context of type II two-Higgs-doublet model (2HDM). By using the existing experimental data of the branching ratio, restrictions on the free parameters of the model m_H, and tan\beta are obtained: tan\beta belong to the range 0.7- o.8, and m_H belong to the r...
1112.3061
Fabrizio Nesti
Miha Nemevsek, Fabrizio Nesti, Goran Senjanovic, Vladimir Tello
Neutrinoless Double Beta Decay: Low Left-Right Symmetry Scale?
5 pages, 4 figures, clarification and references added
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Experiments in progress may confirm a nonzero neutrinoless double beta decay rate in conflict with the cosmological upper limit on neutrino masses and thus require new physics beyond the Standard Model. A natural candidate is the Left-Right symmetric theory, which led originally to neutrino mass and the seesaw mechan...
[ { "created": "Tue, 13 Dec 2011 22:20:43 GMT", "version": "v1" }, { "created": "Tue, 20 Dec 2011 20:58:20 GMT", "version": "v2" } ]
2011-12-21
[ [ "Nemevsek", "Miha", "" ], [ "Nesti", "Fabrizio", "" ], [ "Senjanovic", "Goran", "" ], [ "Tello", "Vladimir", "" ] ]
Experiments in progress may confirm a nonzero neutrinoless double beta decay rate in conflict with the cosmological upper limit on neutrino masses and thus require new physics beyond the Standard Model. A natural candidate is the Left-Right symmetric theory, which led originally to neutrino mass and the seesaw mechanis...
2009.00014
Juan Rojo
Ferran Faura, Shayan Iranipour, Emanuele R. Nocera, Juan Rojo, Maria Ubiali
The Strangest Proton?
Version accepted for publication in EPJC. PDF sets available from http://nnpdf.mi.infn.it/nnpdf3-1strangeness/. v3: fixed typos
null
10.1140/epjc/s10052-020-08749-3
null
hep-ph hep-ex hep-lat nucl-th
http://creativecommons.org/licenses/by/4.0/
We present an improved determination of the strange quark and anti-quark parton distribution functions of the proton by means of a global QCD analysis that takes into account a comprehensive set of strangeness-sensitive measurements: charm-tagged cross sections for fixed-target neutrino-nucleus deep-inelastic scatter...
[ { "created": "Mon, 31 Aug 2020 18:00:02 GMT", "version": "v1" }, { "created": "Fri, 11 Dec 2020 09:46:16 GMT", "version": "v2" }, { "created": "Mon, 3 May 2021 11:23:43 GMT", "version": "v3" } ]
2021-05-04
[ [ "Faura", "Ferran", "" ], [ "Iranipour", "Shayan", "" ], [ "Nocera", "Emanuele R.", "" ], [ "Rojo", "Juan", "" ], [ "Ubiali", "Maria", "" ] ]
We present an improved determination of the strange quark and anti-quark parton distribution functions of the proton by means of a global QCD analysis that takes into account a comprehensive set of strangeness-sensitive measurements: charm-tagged cross sections for fixed-target neutrino-nucleus deep-inelastic scatterin...
hep-ph/9912316
Dagmar Isert
D. S. Isert and S. P. Klevansky
Collision integral in a model for scalar quarks and gluons
6 pages, LaTeX, 2 figures, talk given at the "XVII Autumn School: QCD - Perturbative or Nonperturbative?", Lisbon, Portugal, 29th Sept.99 - 4th Oct.99, to appear in the proceedings
null
null
null
hep-ph
null
A model of scalar quarks and scalar gluons is used to derive transport equations for quarks and gluons. In particular, the collision integral is studied. The self-energy diagrams are organized according to the number of loops. A generalized Boltzmann equation is obtained, which involves at the level up to two loops a...
[ { "created": "Mon, 13 Dec 1999 10:19:53 GMT", "version": "v1" } ]
2007-05-23
[ [ "Isert", "D. S.", "" ], [ "Klevansky", "S. P.", "" ] ]
A model of scalar quarks and scalar gluons is used to derive transport equations for quarks and gluons. In particular, the collision integral is studied. The self-energy diagrams are organized according to the number of loops. A generalized Boltzmann equation is obtained, which involves at the level up to two loops all...
1401.7611
Cristian Pisano
Wilco J. den Dunnen, Jean-Philippe Lansberg, Cristian Pisano, Marc Schlegel
Accessing the Transverse Dynamics and Polarization of Gluons inside the Proton at the LHC
5 pages, 3 figures; final version to appear in Physical Review Letters
Phys. Rev. Lett. 112, 212001 (2014)
10.1103/PhysRevLett.112.212001
NIKHEF-2013-040
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We argue that the study of heavy quarkonia, in particular that of $\Upsilon$, produced back-to-back with an isolated photon in $pp$ collisions at the LHC is the best --and currently unique-- way to access the distribution of both the transverse momentum and the polarization of the gluon in an unpolarized proton. Thes...
[ { "created": "Wed, 29 Jan 2014 17:52:48 GMT", "version": "v1" }, { "created": "Tue, 20 May 2014 16:00:36 GMT", "version": "v2" } ]
2014-06-11
[ [ "Dunnen", "Wilco J. den", "" ], [ "Lansberg", "Jean-Philippe", "" ], [ "Pisano", "Cristian", "" ], [ "Schlegel", "Marc", "" ] ]
We argue that the study of heavy quarkonia, in particular that of $\Upsilon$, produced back-to-back with an isolated photon in $pp$ collisions at the LHC is the best --and currently unique-- way to access the distribution of both the transverse momentum and the polarization of the gluon in an unpolarized proton. These ...
1605.09091
Zhi-Hui Wang
Zhi-Hui Wang, Yi Zhang, Tian-hong Wang, Yue Jiang, Guo-Li Wang
The Production of $X(3940)$ and $X(4160)$ in $B_c$ decays
15 pages, 7 figures
J.Phys. G43 (2016) no.10, 105002
10.1088/0954-3899/43/10/105002
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Considering $X(3940)$ and $X(4160)$ as $\eta_c(3S)$ and $\eta_c(4S)$, we study the productions of $X(3940)$ and $X(4160)$ in exclusive weak decays of $B_c$ meson by the improved Bethe-Salpeter(B-S) Method. Using the relativistic B-S equation and Mandelstam formalism, we calculate the corresponding decay form factors....
[ { "created": "Mon, 30 May 2016 02:48:05 GMT", "version": "v1" }, { "created": "Mon, 27 Jun 2016 02:04:22 GMT", "version": "v2" }, { "created": "Fri, 2 Sep 2016 09:27:08 GMT", "version": "v3" } ]
2016-09-05
[ [ "Wang", "Zhi-Hui", "" ], [ "Zhang", "Yi", "" ], [ "Wang", "Tian-hong", "" ], [ "Jiang", "Yue", "" ], [ "Wang", "Guo-Li", "" ] ]
Considering $X(3940)$ and $X(4160)$ as $\eta_c(3S)$ and $\eta_c(4S)$, we study the productions of $X(3940)$ and $X(4160)$ in exclusive weak decays of $B_c$ meson by the improved Bethe-Salpeter(B-S) Method. Using the relativistic B-S equation and Mandelstam formalism, we calculate the corresponding decay form factors. T...
0708.3001
Oleg Ruchayskiy
Ignatios Antoniadis, Alexey Boyarsky, Oleg Ruchayskiy
Anomaly induced effects in a magnetic field
17pp., latex, 2 figures
Nucl.Phys.B793:246-259,2008
10.1016/j.nuclphysb.2007.10.006
null
hep-ph hep-th
null
We consider a modification of electrodynamics by an additional light massive vector field, interacting with the photon via Chern-Simons-like coupling. This theory predicts observable effects for the experiments studying the propagation of light in an external magnetic field, very similar to those, predicted by theori...
[ { "created": "Wed, 22 Aug 2007 12:02:38 GMT", "version": "v1" } ]
2008-11-26
[ [ "Antoniadis", "Ignatios", "" ], [ "Boyarsky", "Alexey", "" ], [ "Ruchayskiy", "Oleg", "" ] ]
We consider a modification of electrodynamics by an additional light massive vector field, interacting with the photon via Chern-Simons-like coupling. This theory predicts observable effects for the experiments studying the propagation of light in an external magnetic field, very similar to those, predicted by theories...
hep-ph/9912410
Dmitri S. Kourashev
Dmitri S. Kourashev
The QCD observables expansion over the scheme-independent two-loop coupling constant powers, the scheme dependence reduction
7 pages
null
null
null
hep-ph
null
The method suggested in this paper allows to express the n-th order renorm-group equation solutions over the powers of the two-loop solution, that can be obtained explicitly in terms of the Lambert function. On the one hand this expansion helps to get more reliable theoretical predictions, on the other hand the schem...
[ { "created": "Sat, 18 Dec 1999 02:04:59 GMT", "version": "v1" }, { "created": "Thu, 23 Dec 1999 00:29:49 GMT", "version": "v2" } ]
2007-05-23
[ [ "Kourashev", "Dmitri S.", "" ] ]
The method suggested in this paper allows to express the n-th order renorm-group equation solutions over the powers of the two-loop solution, that can be obtained explicitly in terms of the Lambert function. On the one hand this expansion helps to get more reliable theoretical predictions, on the other hand the scheme ...
1903.11023
Tobias Neumann
Tobias Neumann and Zack Sullivan
Off-shell single-top-quark production in the Standard Model Effective Field Theory
39 pages, 27 figures; v2: match published version
JHEP 1906 (2019) 022
10.1007/JHEP06(2019)022
FERMILAB-PUB-19-119-T, IIT-CAPP-19-01
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a fully differential and spin-dependent $t$-channel single-top-quark calculation at next-to-leading order (NLO) in QCD including off-shell effects by using the complex mass scheme in the Standard Model (SM) and in the Standard Model Effective Field Theory (SMEFT). We include all relevant SMEFT operators at...
[ { "created": "Tue, 26 Mar 2019 17:05:58 GMT", "version": "v1" }, { "created": "Mon, 17 Jun 2019 15:29:10 GMT", "version": "v2" } ]
2019-06-18
[ [ "Neumann", "Tobias", "" ], [ "Sullivan", "Zack", "" ] ]
We present a fully differential and spin-dependent $t$-channel single-top-quark calculation at next-to-leading order (NLO) in QCD including off-shell effects by using the complex mass scheme in the Standard Model (SM) and in the Standard Model Effective Field Theory (SMEFT). We include all relevant SMEFT operators at $...
hep-ph/0111333
David Rayner
S.F. King and D.A.J. Rayner
Twisted Moduli and Supersymmetry Breaking
Additional appendix generalises results for alternative exponential suppression factor. Version accepted for publicaton in JHEP
JHEP 0207 (2002) 047
10.1088/1126-6708/2002/07/047
SHEP 01-29
hep-ph hep-th
null
We consider twisted moduli contributions to supersymmetry breaking in effective type I string constructions involving intersecting D5_i and D9-branes using Goldstino angles to parametrise the supersymmetry breaking. It is well known that twisted moduli enter at tree-level into the gauge kinetic functions, and can pro...
[ { "created": "Mon, 26 Nov 2001 18:46:56 GMT", "version": "v1" }, { "created": "Mon, 3 Dec 2001 22:39:09 GMT", "version": "v2" }, { "created": "Wed, 7 Aug 2002 21:08:49 GMT", "version": "v3" } ]
2009-11-07
[ [ "King", "S. F.", "" ], [ "Rayner", "D. A. J.", "" ] ]
We consider twisted moduli contributions to supersymmetry breaking in effective type I string constructions involving intersecting D5_i and D9-branes using Goldstino angles to parametrise the supersymmetry breaking. It is well known that twisted moduli enter at tree-level into the gauge kinetic functions, and can provi...
1812.03898
Gl\`oria Monta\~na Faiget
Gloria Montana, Angels Ramos and Albert Feijoo
The molecular nature of some $\Omega_c^0$ states
6 pages, 2 figures, 2 tables, contribution to the proceedings of the XXII International Conference on Few-Body Problems in Physics (FB22) 2018, July 9-13, Caen, France. arXiv admin note: substantial text overlap with arXiv:1812.03890
null
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A vector meson exchange model based on effective Lagrangians is used to build the meson--baryon interaction in the charm $+1$, strangeness $-2$ and isospin $0$ sector. The s-wave scattering amplitudes resulting from the unitarization in coupled-channels show two resonances with masses and widths that are in very good...
[ { "created": "Mon, 10 Dec 2018 16:10:39 GMT", "version": "v1" } ]
2018-12-11
[ [ "Montana", "Gloria", "" ], [ "Ramos", "Angels", "" ], [ "Feijoo", "Albert", "" ] ]
A vector meson exchange model based on effective Lagrangians is used to build the meson--baryon interaction in the charm $+1$, strangeness $-2$ and isospin $0$ sector. The s-wave scattering amplitudes resulting from the unitarization in coupled-channels show two resonances with masses and widths that are in very good a...
0804.4515
Hiroyuki Nishiura
Hiroyuki Nishiura, Koichi Matsuda, Takeshi Fukuyama
Quark Mixing from Mass Matrix Model with Flavor 2 (\leftrightarrow) 3 Symmetry
15 pages, 2 figures
Int.J.Mod.Phys.A23:4557-4568,2008
10.1142/S0217751X08041463
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider an universal mass matrix model which has a seesaw-invariant structure with the most general texture based on flavor 2 (\leftrightarrow) 3 symmetry common to all quarks and leptons. The CKM quark mixing matrix of the model is analyzed. It is shown that the model is consistent with all the experimental data...
[ { "created": "Tue, 29 Apr 2008 01:38:38 GMT", "version": "v1" }, { "created": "Wed, 9 Jul 2008 09:03:24 GMT", "version": "v2" }, { "created": "Wed, 1 Oct 2008 00:00:58 GMT", "version": "v3" } ]
2008-12-18
[ [ "Nishiura", "Hiroyuki", "" ], [ "Matsuda", "Koichi", "" ], [ "Fukuyama", "Takeshi", "" ] ]
We consider an universal mass matrix model which has a seesaw-invariant structure with the most general texture based on flavor 2 (\leftrightarrow) 3 symmetry common to all quarks and leptons. The CKM quark mixing matrix of the model is analyzed. It is shown that the model is consistent with all the experimental data o...
2307.13025
Max Jaarsma
Rafael F. del Castillo, Max Jaarsma, Ignazio Scimemi, Wouter Waalewijn
Transverse Momentum Measurements with Jets at Next-to-Leading Power
30 pages, 4 figures, v3: journal version
null
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In view of the increasing precision of theoretical calculations and experimental measurements, power corrections to transverse-momentum-dependent observables are highly important. We study the next-to-leading power corrections for transverse momentum measurements in $e^+ e^- \rightarrow 2$ jets. We obtain a factorize...
[ { "created": "Mon, 24 Jul 2023 18:00:00 GMT", "version": "v1" }, { "created": "Fri, 20 Oct 2023 16:52:34 GMT", "version": "v2" }, { "created": "Mon, 5 Feb 2024 11:47:14 GMT", "version": "v3" } ]
2024-02-06
[ [ "del Castillo", "Rafael F.", "" ], [ "Jaarsma", "Max", "" ], [ "Scimemi", "Ignazio", "" ], [ "Waalewijn", "Wouter", "" ] ]
In view of the increasing precision of theoretical calculations and experimental measurements, power corrections to transverse-momentum-dependent observables are highly important. We study the next-to-leading power corrections for transverse momentum measurements in $e^+ e^- \rightarrow 2$ jets. We obtain a factorized ...
hep-ph/0306161
Andreas Birkedal-Hansen
Andreas Birkedal-Hansen, Jay G. Wacker
Scalar Dark Matter From Theory Space
18 pages, 2 figures, version to appear in PRD
Phys.Rev.D69:065022,2004
10.1103/PhysRevD.69.065022
LBNL-52381, UCB-PTH-03/07
hep-ph astro-ph hep-th
null
The scalar dark matter candidate in a prototypical theory space little Higgs model is investigated. We review all details of the model pertinent to dark matter. We perform a thermal relic density calculation including couplings to the gauge and Higgs sectors of the model. We find two regions of parameter space that g...
[ { "created": "Wed, 18 Jun 2003 00:03:32 GMT", "version": "v1" }, { "created": "Fri, 26 Dec 2003 21:30:29 GMT", "version": "v2" } ]
2014-11-17
[ [ "Birkedal-Hansen", "Andreas", "" ], [ "Wacker", "Jay G.", "" ] ]
The scalar dark matter candidate in a prototypical theory space little Higgs model is investigated. We review all details of the model pertinent to dark matter. We perform a thermal relic density calculation including couplings to the gauge and Higgs sectors of the model. We find two regions of parameter space that giv...
2402.05179
Shyam Balaji
Shyam Balaji, Malcolm Fairbairn, Maria Olalla Olea-Romacho
Magnetogenesis with gravitational waves and primordial black hole dark matter
8 pages, 3 figures
null
null
null
hep-ph astro-ph.CO astro-ph.HE
http://creativecommons.org/licenses/by/4.0/
Strongly supercooled first order phase transitions (FOPTs) can produce primordial black hole (PBH) dark matter (DM) along with observable gravitational waves (GWs) from bubble collisions. Such FOPTs may also produce coherent magnetic fields generated by bubble collisions and by turbulence in the primordial plasma. He...
[ { "created": "Wed, 7 Feb 2024 19:00:04 GMT", "version": "v1" }, { "created": "Thu, 15 Feb 2024 17:28:15 GMT", "version": "v2" } ]
2024-02-16
[ [ "Balaji", "Shyam", "" ], [ "Fairbairn", "Malcolm", "" ], [ "Olea-Romacho", "Maria Olalla", "" ] ]
Strongly supercooled first order phase transitions (FOPTs) can produce primordial black hole (PBH) dark matter (DM) along with observable gravitational waves (GWs) from bubble collisions. Such FOPTs may also produce coherent magnetic fields generated by bubble collisions and by turbulence in the primordial plasma. Here...
2208.04781
Dana Avramescu Mrs.
Dana Avramescu, Virgil B\u{a}ran, Vincenzo Greco, Andreas Ipp, David. I. M\"uller, Marco Ruggieri
Momentum broadening of heavy quarks and jets in the Glasma from classical colored particle simulations
4 pages, 1 figure, proceedings for the 29th International Conference on Ultra-relativistic Nucleus-Nucleus Collisions (Quark Matter 2022)
Acta Phys. Pol. B Proc. Suppl. 16, 1-A157 (2023)
10.5506/APhysPolBSupp.16.1-A157
null
hep-ph hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the effects of the pre-equilibrium Glasma stage of heavy-ion collisions on the broadening of momentum for heavy quarks and jets using classical colored particle simulations based on Wong's equations. Confirming previous studies, we find that these probes accumulate momentum on the order of the saturati...
[ { "created": "Tue, 9 Aug 2022 13:49:36 GMT", "version": "v1" } ]
2023-04-04
[ [ "Avramescu", "Dana", "" ], [ "Băran", "Virgil", "" ], [ "Greco", "Vincenzo", "" ], [ "Ipp", "Andreas", "" ], [ "Müller", "David. I.", "" ], [ "Ruggieri", "Marco", "" ] ]
We investigate the effects of the pre-equilibrium Glasma stage of heavy-ion collisions on the broadening of momentum for heavy quarks and jets using classical colored particle simulations based on Wong's equations. Confirming previous studies, we find that these probes accumulate momentum on the order of the saturation...
1006.1091
Xiang Liu
Hong-Wei Ke, Xue-Qian Li, Zheng-Tao Wei and Xiang Liu
Re-Study on the wave functions of $\Upsilon(nS)$ states in LFQM and the radiative decays of $\Upsilon(nS)\to \eta_b+\gamma$
10 pages, 2 figures, 1 table. Typos corrected and more discussions added. accepted for publication in Physical Review D
Phys.Rev.D82:034023,2010
10.1103/PhysRevD.82.034023
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Light-front quark model (LFQM) has been applied to calculate the transition matrix elements of heavy hadron decays. However, it is noted that using the traditional wave functions of the LFQM given in literature, the theoretically determined decay constants of the $\Upsilon(nS)$ obviously contradict to the data. I...
[ { "created": "Sun, 6 Jun 2010 08:35:23 GMT", "version": "v1" }, { "created": "Fri, 30 Jul 2010 01:10:15 GMT", "version": "v2" }, { "created": "Mon, 2 Aug 2010 00:12:40 GMT", "version": "v3" } ]
2010-08-24
[ [ "Ke", "Hong-Wei", "" ], [ "Li", "Xue-Qian", "" ], [ "Wei", "Zheng-Tao", "" ], [ "Liu", "Xiang", "" ] ]
The Light-front quark model (LFQM) has been applied to calculate the transition matrix elements of heavy hadron decays. However, it is noted that using the traditional wave functions of the LFQM given in literature, the theoretically determined decay constants of the $\Upsilon(nS)$ obviously contradict to the data. It ...
hep-ph/9506283
Subir Sarkar
G.G. Ross (CERN/Oxford) and S. Sarkar (Oxford)
Successful Supersymmetric Inflation
27 pages (LaTeX) including 1 embedded (PostScript) figure. Revised to include a fuller discussion of initial conditions (leading to "eternal" inflation) and the role of moduli; some reordering of sections for greater clarity. Accepted for publication in Nuclear Physics B
Nucl.Phys.B461:597-624,1996
10.1016/0550-3213(96)00013-2
OUTP-95-15P, CERN-TH.95/134
hep-ph astro-ph hep-th
null
We reconsider the problems of cosmological inflation in effective supergravity theories. A singlet field in a hidden sector is demonstrated to yield an acceptable inflationary potential, without fine tuning. In the simplest such model, the requirement of generating the microwave background anisotropy measured by COBE...
[ { "created": "Fri, 9 Jun 1995 18:28:14 GMT", "version": "v1" }, { "created": "Sun, 11 Jun 1995 12:30:23 GMT", "version": "v2" }, { "created": "Tue, 16 Jan 1996 18:32:00 GMT", "version": "v3" } ]
2011-02-16
[ [ "Ross", "G. G.", "", "CERN/Oxford" ], [ "Sarkar", "S.", "", "Oxford" ] ]
We reconsider the problems of cosmological inflation in effective supergravity theories. A singlet field in a hidden sector is demonstrated to yield an acceptable inflationary potential, without fine tuning. In the simplest such model, the requirement of generating the microwave background anisotropy measured by COBE f...
1904.02221
T. Goldman
T. Goldman and G. J. Stephenson, Jr
From the Standard Model towards a Theory of Matter: Quarks
25 pages, 2 figures. This submission builds on arXiv:1503.04211v2, expanding the motivation and simplifying the calculations
null
null
LA-UR-19-22186
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We follow the example of Cabibbo by revising the Standard Model (SM) to present a universal mass structure for fermions. A universal Higgs coupling for each species of fundamental fermions moves the SM towards a Theory of Matter, albeit without correctly describing the observed mass spectrum. It exposes a need for a ...
[ { "created": "Wed, 3 Apr 2019 19:56:42 GMT", "version": "v1" } ]
2019-04-05
[ [ "Goldman", "T.", "" ], [ "Stephenson,", "G. J.", "Jr" ] ]
We follow the example of Cabibbo by revising the Standard Model (SM) to present a universal mass structure for fermions. A universal Higgs coupling for each species of fundamental fermions moves the SM towards a Theory of Matter, albeit without correctly describing the observed mass spectrum. It exposes a need for a co...
2212.07832
Francesco Nozzoli PhD
Francesco Nozzoli and Cinzia Cernetti
Dark Matter stimulated neutrinoless double beta decay
4 pages, 4 figures, V2: bibliography updated, corrected a typo of fig.4 label and in the text
null
null
null
hep-ph astro-ph.CO astro-ph.IM
http://creativecommons.org/licenses/by/4.0/
Nuclei that are unstable with respect to double beta decay are investigated in this work for a novel Dark Matter (DM) direct detection approach. In particular, the diagram responsible for the neutrinoless double beta decay will be considered for the possible detection technique of a Majorana DM fermion inelastically ...
[ { "created": "Thu, 15 Dec 2022 13:40:11 GMT", "version": "v1" }, { "created": "Fri, 30 Dec 2022 21:02:34 GMT", "version": "v2" } ]
2023-01-03
[ [ "Nozzoli", "Francesco", "" ], [ "Cernetti", "Cinzia", "" ] ]
Nuclei that are unstable with respect to double beta decay are investigated in this work for a novel Dark Matter (DM) direct detection approach. In particular, the diagram responsible for the neutrinoless double beta decay will be considered for the possible detection technique of a Majorana DM fermion inelastically sc...
1712.02884
Tomas Kasemets
Tomas Kasemets and Sergio Scopetta
Parton correlations in double parton scattering
Prepared for: Multiple Parton Interactions at the LHC, Eds. P. Bartalini and J. R. Gaunt, World Scientific, Singapore; v2: references added
null
null
MITP/17-092
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Double parton scattering events are directly sensitive to the correlations between two partons inside a proton and can answer fundamental questions on the connections between the proton constituents. In this chapter, the different types of possible correlations, our present knowledge of them, and the processes where ...
[ { "created": "Thu, 7 Dec 2017 23:19:20 GMT", "version": "v1" }, { "created": "Wed, 10 Jan 2018 13:49:26 GMT", "version": "v2" } ]
2018-01-11
[ [ "Kasemets", "Tomas", "" ], [ "Scopetta", "Sergio", "" ] ]
Double parton scattering events are directly sensitive to the correlations between two partons inside a proton and can answer fundamental questions on the connections between the proton constituents. In this chapter, the different types of possible correlations, our present knowledge of them, and the processes where th...
1410.5064
Boris Blok
B.Blok and M.Strikman
Double parton interactions in $\gamma p, \gamma A$ collisions in the direct photon kinematics
19 pages, 11 figures
null
null
null
hep-ph hep-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We derive expressions for the differential distributions and the total cross section of double- parton interaction in direct photon interaction with proton and nuclei. We demonstrate that in this case the cross section is more directly related to the nucleon generalized parton distribution than in the case of double ...
[ { "created": "Sun, 19 Oct 2014 12:38:46 GMT", "version": "v1" } ]
2014-10-21
[ [ "Blok", "B.", "" ], [ "Strikman", "M.", "" ] ]
We derive expressions for the differential distributions and the total cross section of double- parton interaction in direct photon interaction with proton and nuclei. We demonstrate that in this case the cross section is more directly related to the nucleon generalized parton distribution than in the case of double pa...
2112.04348
Eberhard Klempt
Eberhard Klempt and Andrey V. Sarantsev
Singlet-octet-glueball mixing of scalar mesons
null
null
10.1016/j.physletb.2022.136906
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The mixing angles between scalar isoscalar resonances and a scalar glueball are determined from their decays into two pseudoscalar mesons. For $f_0(1370)$ and $f_0(1500)$, at most a small glueball component is admitted by the data. The decay modes of $f_0(1710)$, $f_0(1770)$, $f_0(2020)$, and $f_0(2100)$ require sign...
[ { "created": "Wed, 8 Dec 2021 15:57:17 GMT", "version": "v1" }, { "created": "Fri, 14 Jan 2022 16:32:44 GMT", "version": "v2" } ]
2022-03-14
[ [ "Klempt", "Eberhard", "" ], [ "Sarantsev", "Andrey V.", "" ] ]
The mixing angles between scalar isoscalar resonances and a scalar glueball are determined from their decays into two pseudoscalar mesons. For $f_0(1370)$ and $f_0(1500)$, at most a small glueball component is admitted by the data. The decay modes of $f_0(1710)$, $f_0(1770)$, $f_0(2020)$, and $f_0(2100)$ require signif...
0907.1742
Yury Bystritskiy
A.I. Ahmadov, Yu.M. Bystritskiy, E.A. Kuraev
Scalar meson production in proton-proton and proton-antiproton collisions
18 pages, 5 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Taking into account the exchange forces between protons of scalar, pseudoscalar, vector and axial vector type the cross sections of neutral and charged scalar mesons $a_0(980)$, $a_+(980)$, $f_0(980)$, $\sigma(600)$ production are calculated. The estimation for the facilities of moderately high energies such as PANDA...
[ { "created": "Fri, 10 Jul 2009 07:04:36 GMT", "version": "v1" } ]
2009-07-13
[ [ "Ahmadov", "A. I.", "" ], [ "Bystritskiy", "Yu. M.", "" ], [ "Kuraev", "E. A.", "" ] ]
Taking into account the exchange forces between protons of scalar, pseudoscalar, vector and axial vector type the cross sections of neutral and charged scalar mesons $a_0(980)$, $a_+(980)$, $f_0(980)$, $\sigma(600)$ production are calculated. The estimation for the facilities of moderately high energies such as PANDA a...
2107.11950
Daisuke Jido
Kento Kumakawa, Daisuke Jido
Excitation spectra of heavy baryons in diquark models
22 pages, 13 figures, 7 tables
Prog Theor Exp Phys (2022)
10.1093/ptep/ptac066
null
hep-ph nucl-th
http://creativecommons.org/licenses/by-nc-nd/4.0/
The excitation energy spectra of heavy baryons consisting of a heavy quark and two light quarks are investigated by using diquark models in order to examine the nature of the diquark as a constituent of single heavy baryons. We consider two diquark models; in model A the diquark is treated as a point-like particle, w...
[ { "created": "Mon, 26 Jul 2021 04:10:56 GMT", "version": "v1" }, { "created": "Fri, 1 Apr 2022 04:12:21 GMT", "version": "v2" } ]
2022-05-25
[ [ "Kumakawa", "Kento", "" ], [ "Jido", "Daisuke", "" ] ]
The excitation energy spectra of heavy baryons consisting of a heavy quark and two light quarks are investigated by using diquark models in order to examine the nature of the diquark as a constituent of single heavy baryons. We consider two diquark models; in model A the diquark is treated as a point-like particle, whi...
hep-ph/0106285
Sharon Fairless
A.D. Martin
Status of Structure Functions and Partons
12 pages including 4 figures, summary of talk at DIS2001
null
10.1142/9789812778345_0005
IPPP/01/29 DCPT/01/58
hep-ph
null
We briefly review some of the developments in the study of parton distributions which have occurred since DIS2000, including discussion of uncertainties, shadowing, unintegrated and generalized distributions.
[ { "created": "Tue, 26 Jun 2001 10:45:09 GMT", "version": "v1" } ]
2015-06-25
[ [ "Martin", "A. D.", "" ] ]
We briefly review some of the developments in the study of parton distributions which have occurred since DIS2000, including discussion of uncertainties, shadowing, unintegrated and generalized distributions.
1803.06155
Jean-Marc Richard
Jean-Marc Richard (Lyon), Alfredo Valcarce (Salamanca), Javier Vijande (Valencia)
Few-body quark dynamics for doubly-heavy baryons and tetraquarks
10 pages, 9 figures, to appear in Phys. Rev. C, one ref. added
Phys. Rev. C 97, 035211 (2018)
10.1103/PhysRevC.97.035211
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the adequate treatment of the 3- and 4-body dynamics for the quark model picture of double-charm baryons and tetraquarks. We stress that the variational and Born-Oppenheimer approximations give energies very close to the exact ones, while the diquark approximation might be rather misleading. The Hall-Post ...
[ { "created": "Fri, 16 Mar 2018 10:34:35 GMT", "version": "v1" }, { "created": "Tue, 27 Mar 2018 11:19:25 GMT", "version": "v2" } ]
2018-03-30
[ [ "Richard", "Jean-Marc", "", "Lyon" ], [ "Valcarce", "Alfredo", "", "Salamanca" ], [ "Vijande", "Javier", "", "Valencia" ] ]
We discuss the adequate treatment of the 3- and 4-body dynamics for the quark model picture of double-charm baryons and tetraquarks. We stress that the variational and Born-Oppenheimer approximations give energies very close to the exact ones, while the diquark approximation might be rather misleading. The Hall-Post in...
1004.0484
Zhi-Gang Wang
Zhi-Gang Wang, Yan-Mei Xu, Hui-Juan Wang
Analysis of the scalar doubly heavy tetraquark states with QCD sum rules
17 pages, 24 figures, add more discussions
Commun.Theor.Phys.55:1049-1058,2011
10.1088/0253-6102/55/6/20
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this article, we perform a systematic study of the mass spectrum of the scalar doubly charmed and doubly bottom tetraquark states using the QCD sum rules.
[ { "created": "Sun, 4 Apr 2010 04:02:18 GMT", "version": "v1" }, { "created": "Fri, 9 Jul 2010 01:49:20 GMT", "version": "v2" }, { "created": "Mon, 30 Aug 2010 01:59:35 GMT", "version": "v3" } ]
2015-03-14
[ [ "Wang", "Zhi-Gang", "" ], [ "Xu", "Yan-Mei", "" ], [ "Wang", "Hui-Juan", "" ] ]
In this article, we perform a systematic study of the mass spectrum of the scalar doubly charmed and doubly bottom tetraquark states using the QCD sum rules.
2302.07473
Peter Tandy
Peter C. Tandy
Parton Decomposition of Nucleon Spin and Momentum: Gluons from Dressed Quarks
8 pages, 5 figures. Submitted for publication. This version clarifies and qualifies the approach and methods, and corrects typing errors
null
10.1016/j.physletb.2023.137972
null
hep-ph hep-lat nucl-ex nucl-th
http://creativecommons.org/licenses/by-nc-nd/4.0/
The lowest two Mellin moments of hadronic Generalized Parton Distributions are explored within a model that allows investigation of the inter-related quark and gluon contributions. For light quarks their dynamical connection is strong due to quark dressing. Our principal focus is the angular momentum $J$ of the nucle...
[ { "created": "Wed, 15 Feb 2023 05:15:51 GMT", "version": "v1" }, { "created": "Thu, 11 May 2023 09:07:00 GMT", "version": "v2" } ]
2023-06-14
[ [ "Tandy", "Peter C.", "" ] ]
The lowest two Mellin moments of hadronic Generalized Parton Distributions are explored within a model that allows investigation of the inter-related quark and gluon contributions. For light quarks their dynamical connection is strong due to quark dressing. Our principal focus is the angular momentum $J$ of the nucleon...
1412.4792
Maximilian Stahlhofen
Shireen Gangal, Maximilian Stahlhofen, Frank J. Tackmann
Rapidity-Dependent Jet Vetoes
17 pages, 8 figures
Phys. Rev. D 91, 054023 (2015)
10.1103/PhysRevD.91.054023
DESY 14-240
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Jet vetoes are a prominent part of the signal selection in various analyses at the LHC. We discuss jet vetoes for which the transverse momentum of a jet is weighted by a smooth function of the jet rapidity. With a suitable choice of the rapidity-weighting function, such jet-veto variables can be factorized and resumm...
[ { "created": "Mon, 15 Dec 2014 21:01:40 GMT", "version": "v1" } ]
2015-03-25
[ [ "Gangal", "Shireen", "" ], [ "Stahlhofen", "Maximilian", "" ], [ "Tackmann", "Frank J.", "" ] ]
Jet vetoes are a prominent part of the signal selection in various analyses at the LHC. We discuss jet vetoes for which the transverse momentum of a jet is weighted by a smooth function of the jet rapidity. With a suitable choice of the rapidity-weighting function, such jet-veto variables can be factorized and resummed...
hep-ph/0202203
Juan E. Palomar
J. E. Palomar
Pion and kaon role in $\tau$ decays, g_{\mu}-2, the running of $\alpha_{QED}$ and the muonium hyperfine splitting
15 pages, 4 figures
null
10.1016/S0920-5632(03)01842-5
FTUV-02-2102; IFIC-02-2102
hep-ph
null
We make use of recent accurate results obtained for the pion and kaon vector form factors within a chiral unitary approach in order to calculate the decay widths of the $\tau$ lepton to these mesons and also to evaluate the contribution of this two mesons to the anomalous magnetic moment of the muon, the running of t...
[ { "created": "Thu, 21 Feb 2002 17:16:46 GMT", "version": "v1" } ]
2009-11-07
[ [ "Palomar", "J. E.", "" ] ]
We make use of recent accurate results obtained for the pion and kaon vector form factors within a chiral unitary approach in order to calculate the decay widths of the $\tau$ lepton to these mesons and also to evaluate the contribution of this two mesons to the anomalous magnetic moment of the muon, the running of the...
hep-ph/9812389
Yoav Achiman
Yoav Achiman
Are Right-Handed Mixings Observable?
9 pages. Talk at the ``Corfu Summer Inst. on Elem. Part. Phys.'',Sept.1998 ; ; spelling corrected
null
null
WUB-98-43
hep-ph
null
Asymmetric mass matrices can induce large RH mixings. Those are non- measurable in the SM but are there and play an important role in its extensions. The RH rotations are in particular relevant for the proton decay, neutrino properties and baryon asymmetry. E.g. large RH mixings lead to kaon dominated proton decay ev...
[ { "created": "Wed, 16 Dec 1998 16:17:19 GMT", "version": "v1" }, { "created": "Wed, 20 Jan 1999 13:41:06 GMT", "version": "v2" } ]
2007-05-23
[ [ "Achiman", "Yoav", "" ] ]
Asymmetric mass matrices can induce large RH mixings. Those are non- measurable in the SM but are there and play an important role in its extensions. The RH rotations are in particular relevant for the proton decay, neutrino properties and baryon asymmetry. E.g. large RH mixings lead to kaon dominated proton decay even...
1907.03767
Itay Bloch
Itay M. Bloch, Yonit Hochberg, Eric Kuflik, Tomer Volansky
Axion-like Relics: New Constraints from Old Comagnetometer Data
20 pages, 3 figures, 2 tables
J. High Energ. Phys. (2020) 2020: 167
10.1007/JHEP01(2020)167
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The noble-alkali comagnetometer, developed in recent years, has been shown to be a very accurate measuring device of anomalous magnetic-like fields. An ultra-light relic axion-like particle can source an anomalous field that permeates space, allowing for its detection by comagnetometers. Here we derive new constraint...
[ { "created": "Mon, 8 Jul 2019 18:00:03 GMT", "version": "v1" }, { "created": "Sun, 2 Feb 2020 16:10:21 GMT", "version": "v2" } ]
2020-02-04
[ [ "Bloch", "Itay M.", "" ], [ "Hochberg", "Yonit", "" ], [ "Kuflik", "Eric", "" ], [ "Volansky", "Tomer", "" ] ]
The noble-alkali comagnetometer, developed in recent years, has been shown to be a very accurate measuring device of anomalous magnetic-like fields. An ultra-light relic axion-like particle can source an anomalous field that permeates space, allowing for its detection by comagnetometers. Here we derive new constraints ...
1910.06684
Bernhard Mistlberger
Taushif Ahmed, Johannes Henn and Bernhard Mistlberger
Four-particle scattering amplitudes in QCD at NNLO to higher orders in the dimensional regulator
22 pages, 3 figures, Journal Version, Fixed some typos
JHEP 1912 (2019) 177
10.1007/JHEP12(2019)177
MIT-CTP/5130, MPP-2019-129
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We compute all helicity amplitudes for four-particle scattering in massless QCD with $n_f$ fermion flavours to next-to-next-to-leading order (NNLO) in perturbation theory. In particular, we consider all possible configurations of external quarks and gluons. We evaluate the amplitudes in terms of a Laurent series in t...
[ { "created": "Tue, 15 Oct 2019 12:37:16 GMT", "version": "v1" }, { "created": "Tue, 21 Jan 2020 20:17:30 GMT", "version": "v2" } ]
2020-01-23
[ [ "Ahmed", "Taushif", "" ], [ "Henn", "Johannes", "" ], [ "Mistlberger", "Bernhard", "" ] ]
We compute all helicity amplitudes for four-particle scattering in massless QCD with $n_f$ fermion flavours to next-to-next-to-leading order (NNLO) in perturbation theory. In particular, we consider all possible configurations of external quarks and gluons. We evaluate the amplitudes in terms of a Laurent series in the...
1605.05840
Victor Goncalves
V.P. Goncalves, B.D. Moreira and F.S. Navarra
Double vector meson production in photon - hadron interactions at hadronic colliders
9 pages, 5 figures, 2 tables. Revised and enlarged version to be published in the European Physical Journal C
null
10.1140/epjc/s10052-016-4239-x
null
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we analyse the double vector meson production in photon -- hadron ($\gamma h$) interactions at $pp/pA/AA$ collisions and present predictions for the $\rho\rho$, $J/\Psi J/\Psi$ and $\rho J/\Psi$ production considering the double scattering mechanism. We estimate the total cross sections and rapidity dis...
[ { "created": "Thu, 19 May 2016 08:06:08 GMT", "version": "v1" }, { "created": "Tue, 28 Jun 2016 15:54:32 GMT", "version": "v2" } ]
2016-08-03
[ [ "Goncalves", "V. P.", "" ], [ "Moreira", "B. D.", "" ], [ "Navarra", "F. S.", "" ] ]
In this paper we analyse the double vector meson production in photon -- hadron ($\gamma h$) interactions at $pp/pA/AA$ collisions and present predictions for the $\rho\rho$, $J/\Psi J/\Psi$ and $\rho J/\Psi$ production considering the double scattering mechanism. We estimate the total cross sections and rapidity distr...
0912.0119
Sergey Gevorkyan
S.R. Gevorkyan, A.V.Tarasov, O.O.Voskresenskaya
Formation of $\pi\mu$ atoms in $K_{\mu 4} decay
6 pages
Phys.Lett.B688:192-194,2010
10.1016/j.physletb.2010.04.011
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We derive the decay rate of $\pi\mu$ atom formation in $K_{\mu 4}$ decay. Using the obtained expressions we calculate the decay rate of atom formation and point out that considered decay can give a noticeable contribution as a background to the fundamental decay $K^+\to \pi^+\nu\bar{\nu}$.
[ { "created": "Tue, 1 Dec 2009 10:53:35 GMT", "version": "v1" } ]
2010-05-07
[ [ "Gevorkyan", "S. R.", "" ], [ "Tarasov", "A. V.", "" ], [ "Voskresenskaya", "O. O.", "" ] ]
We derive the decay rate of $\pi\mu$ atom formation in $K_{\mu 4}$ decay. Using the obtained expressions we calculate the decay rate of atom formation and point out that considered decay can give a noticeable contribution as a background to the fundamental decay $K^+\to \pi^+\nu\bar{\nu}$.
2001.06667
Christian Schubert
Idrish Huet, Michel Rausch de Traubenberg and Christian Schubert
Multiloop QED in the Euler-Heisenberg approach
5 pages, 6 figures, talk given by C. Schubert at the Nineteenth Lomonosov Conference on Elementary Particle Physics, Moscow, August 22-28, 2019, to appear in the conference proceedings. arXiv admin note: substantial text overlap with arXiv:1807.05938
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
I summarize what is known about the Euler-Heisenberg Lagrangian and its multiloop corrections for scalar and spinor QED, in various types of constant fields, and in various dimensions. Particular attention is given to the asymptotic properties of the weak-field expansion of the Lagrangian, which via Borel summation i...
[ { "created": "Sat, 18 Jan 2020 14:04:00 GMT", "version": "v1" } ]
2020-01-22
[ [ "Huet", "Idrish", "" ], [ "de Traubenberg", "Michel Rausch", "" ], [ "Schubert", "Christian", "" ] ]
I summarize what is known about the Euler-Heisenberg Lagrangian and its multiloop corrections for scalar and spinor QED, in various types of constant fields, and in various dimensions. Particular attention is given to the asymptotic properties of the weak-field expansion of the Lagrangian, which via Borel summation is ...
1312.0136
Alexander Ilyichev Dr.
A. Ilyichev and M. Osipenko
Radiative corrections to semi-inclusive deep inelastic scattering induced by lepton and photon pair electroproduction
7 pages, 4 figures. Talk given at XII-th International School-Seminar The Actual Problems of Microworld Physics July 22 - August 2, 2013, Gomel, Belarus
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The contribution of lepton and photon pair production in ep-scattering to the cross section of semi-inclusive deep inelastic scattering ep-> e'p'X has been calculated. The numerical results showed a large contribution of this processes at $\phi_h=180^o$, in a good agreement with preliminary experimental data.
[ { "created": "Sat, 30 Nov 2013 18:22:26 GMT", "version": "v1" } ]
2013-12-03
[ [ "Ilyichev", "A.", "" ], [ "Osipenko", "M.", "" ] ]
The contribution of lepton and photon pair production in ep-scattering to the cross section of semi-inclusive deep inelastic scattering ep-> e'p'X has been calculated. The numerical results showed a large contribution of this processes at $\phi_h=180^o$, in a good agreement with preliminary experimental data.
1709.08644
Ryoutaro Watanabe
Ryoutaro Watanabe
New Physics effect on $B_c \to J/\psi \tau\bar\nu$ in relation to the $R_{D^{(*)}}$ anomaly
7 pages, 2 figures, 1 table, (v2) new constraint included, (v2) references added, (v3) published version with additional revision
null
10.1016/j.physletb.2017.11.016
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study possible new physics (NP) effects on $B_c \to J/\psi \tau\bar\nu$, which has been recently measured at LHCb as the ratio of $R_{J/\psi} = \mathcal B(B_c \to J/\psi \tau\bar\nu)/\mathcal B(B_c \to J/\psi \mu\bar\nu)$. Combining it with the long-standing $R_{D^{(*)}}$ measurements, in which the discrepancy wit...
[ { "created": "Mon, 25 Sep 2017 18:00:14 GMT", "version": "v1" }, { "created": "Wed, 4 Oct 2017 11:57:53 GMT", "version": "v2" }, { "created": "Wed, 24 Jan 2018 18:18:01 GMT", "version": "v3" } ]
2018-01-25
[ [ "Watanabe", "Ryoutaro", "" ] ]
We study possible new physics (NP) effects on $B_c \to J/\psi \tau\bar\nu$, which has been recently measured at LHCb as the ratio of $R_{J/\psi} = \mathcal B(B_c \to J/\psi \tau\bar\nu)/\mathcal B(B_c \to J/\psi \mu\bar\nu)$. Combining it with the long-standing $R_{D^{(*)}}$ measurements, in which the discrepancy with ...
1612.00026
Bryan Ostdiek
G. Barello, Spencer Chang, Christopher A. Newby, Bryan Ostdiek
Don't be left in the dark: Improving LHC searches for dark photons using lepton-jet substructure
28 pages, 9 figures; v2. As appears in PRD. Added appendix to compare boosted decision tree to a cut-based analysis. Other minor typos corrected
Phys. Rev. D 95, 055007 (2017)
10.1103/PhysRevD.95.055007
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Collider signals of dark photons are an exciting probe for new gauge forces and are characterized by events with boosted lepton jets. Existing techniques are efficient in searching for muonic lepton jets but due to substantial backgrounds have difficulty constraining lepton jets containing only electrons. This is unf...
[ { "created": "Wed, 30 Nov 2016 21:01:17 GMT", "version": "v1" }, { "created": "Fri, 10 Mar 2017 20:13:18 GMT", "version": "v2" } ]
2017-03-15
[ [ "Barello", "G.", "" ], [ "Chang", "Spencer", "" ], [ "Newby", "Christopher A.", "" ], [ "Ostdiek", "Bryan", "" ] ]
Collider signals of dark photons are an exciting probe for new gauge forces and are characterized by events with boosted lepton jets. Existing techniques are efficient in searching for muonic lepton jets but due to substantial backgrounds have difficulty constraining lepton jets containing only electrons. This is unfor...
2109.12921
Chandan Mondal
Chandan Mondal, Jiangshan Lan, Kaiyu Fu, Siqi Xu, Zhi Hu, Xingbo Zhao, James P. Vary
Hadron structure from basis light-front quantization
6 pages, 5 figures; minor modifications, figure 5 added; Proceedings for the 50th International Symposium on Multi-particle Dynamics (ISMD2021), Zurich, Europe, 12-16 July 2021
SciPost Phys. Proc. 10, 036 (2022)
10.21468/SciPostPhysProc.10
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We present our recent progress in applying basis light-front quantization approach to investigate the structure of the light mesons and the nucleon.
[ { "created": "Mon, 27 Sep 2021 10:08:54 GMT", "version": "v1" }, { "created": "Fri, 8 Apr 2022 15:15:42 GMT", "version": "v2" } ]
2022-08-18
[ [ "Mondal", "Chandan", "" ], [ "Lan", "Jiangshan", "" ], [ "Fu", "Kaiyu", "" ], [ "Xu", "Siqi", "" ], [ "Hu", "Zhi", "" ], [ "Zhao", "Xingbo", "" ], [ "Vary", "James P.", "" ] ]
We present our recent progress in applying basis light-front quantization approach to investigate the structure of the light mesons and the nucleon.
1303.0800
Germano Nardini
Antonio Delgado, Germano Nardini, and Mariano Quiros
A Light Supersymmetric Higgs Sector Hidden by a Standard Model-like Higgs
24 pages, 6 figures; v2: added references; v3: some comments clarified, Fig.6 improved, version published in JHEP
null
null
BI-TP 2013/05; UAB-FT-730
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Extending the Higgs sector of the MSSM by triplets alleviates the little hierarchy problem and naturally allows for enhancements in the diphoton decay rate of the lightest CP-even Higgs h. In the present paper we analyze in detail the Higgs phenomenology of this theory with m_h~126 GeV. We mostly focus on a light Hig...
[ { "created": "Mon, 4 Mar 2013 19:10:18 GMT", "version": "v1" }, { "created": "Fri, 22 Mar 2013 10:21:44 GMT", "version": "v2" }, { "created": "Wed, 19 Jun 2013 09:31:22 GMT", "version": "v3" } ]
2013-06-20
[ [ "Delgado", "Antonio", "" ], [ "Nardini", "Germano", "" ], [ "Quiros", "Mariano", "" ] ]
Extending the Higgs sector of the MSSM by triplets alleviates the little hierarchy problem and naturally allows for enhancements in the diphoton decay rate of the lightest CP-even Higgs h. In the present paper we analyze in detail the Higgs phenomenology of this theory with m_h~126 GeV. We mostly focus on a light Higgs...
hep-ph/9606398
Doreen Wackeroth
Doreen Wackeroth, Wolfgang Hollik
Electroweak Radiative Corrections to Resonant Charged Gauge Boson Production
49 pages, LaTeX source and 17 postscript figures, revised version with few minor changes, accepted for publication in Phys.Rev.D
Phys.Rev.D55:6788-6818,1997
10.1103/PhysRevD.55.6788
Fermilab-Pub-96/094-T and KA-TP-12-1996
hep-ph
null
The electroweak O(alpha) contribution to the resonant single W production in a general 4-fermion process is discussed with particular emphasis on a gauge invariant decomposition into a QED-like and weak part. The cross section in the vicinity of the resonance can be represented in terms of a convolution of a `hard' B...
[ { "created": "Thu, 20 Jun 1996 22:36:32 GMT", "version": "v1" }, { "created": "Tue, 18 Feb 1997 19:37:46 GMT", "version": "v2" } ]
2008-11-26
[ [ "Wackeroth", "Doreen", "" ], [ "Hollik", "Wolfgang", "" ] ]
The electroweak O(alpha) contribution to the resonant single W production in a general 4-fermion process is discussed with particular emphasis on a gauge invariant decomposition into a QED-like and weak part. The cross section in the vicinity of the resonance can be represented in terms of a convolution of a `hard' Bre...
2012.09213
Pier Francesco Monni
Christian W. Bauer, Aneesh V. Manohar, Pier Francesco Monni
Disentangling observable dependence in SCETI and SCETII anomalous dimensions: angularities at two loops
Fixing an incorrect statement in the first version of the paper, results and conclusions are unaffected
null
10.1007/JHEP07(2021)214
CERN-TH-2020-189
hep-ph
http://creativecommons.org/licenses/by/4.0/
The resummation of radiative corrections to collider jet observables using soft collinear effective theory is encoded in differential renormalization group equations (RGEs), with anomalous dimensions depending on the observable under consideration. This observable dependence arises from the ultraviolet (UV) singular ...
[ { "created": "Wed, 16 Dec 2020 19:09:37 GMT", "version": "v1" }, { "created": "Mon, 21 Dec 2020 18:24:42 GMT", "version": "v2" } ]
2021-08-18
[ [ "Bauer", "Christian W.", "" ], [ "Manohar", "Aneesh V.", "" ], [ "Monni", "Pier Francesco", "" ] ]
The resummation of radiative corrections to collider jet observables using soft collinear effective theory is encoded in differential renormalization group equations (RGEs), with anomalous dimensions depending on the observable under consideration. This observable dependence arises from the ultraviolet (UV) singular st...
2102.09993
Pablo Guerrero-Rodr\'iguez
Pablo Guerrero-Rodr\'iguez, Tuomas Lappi
Evolution of initial stage fluctuations in the glasma
19 pages, 6 figures
Phys. Rev. D 104, 014011 (2021)
10.1103/PhysRevD.104.014011
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We perform a calculation of the one- and two-point correlation functions of energy density and axial charge deposited in the glasma in the initial stage of a heavy ion collision at finite proper time. We do this by describing the initial stage of heavy ion collisions in terms of freely evolving classical fields whose...
[ { "created": "Fri, 19 Feb 2021 15:45:51 GMT", "version": "v1" }, { "created": "Wed, 25 Aug 2021 15:54:01 GMT", "version": "v2" } ]
2021-08-26
[ [ "Guerrero-Rodríguez", "Pablo", "" ], [ "Lappi", "Tuomas", "" ] ]
We perform a calculation of the one- and two-point correlation functions of energy density and axial charge deposited in the glasma in the initial stage of a heavy ion collision at finite proper time. We do this by describing the initial stage of heavy ion collisions in terms of freely evolving classical fields whose d...
2309.14281
Gorazd Cvetic
Gorazd Cvetic and C.S.Kim
Rare tau decays via exchange of on-shell almost degenerate Majorana neutrinos, $\tau^{\mp} \to \pi^{\mp} N_j \to \pi^{\mp} \mu^{\mp} \pi^{\pm}$ and $\tau^{\mp} \to \pi^{\mp} N_j \to \pi^{\mp} \mu^{\pm} \pi^{\mp}$
14 pages, 7 figures; v2: references added
JHEP02(2024)215
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate rare decays of tau leptons that occur via exchange of heavy on-shell neutrinos $N_j$ ($j=1,2$). These neutrinos can be either Dirac or Majorana, and are considered to be almost degenerate in mass. The decays can thus be either lepton number conserving (LNC), $\tau^{\mp} \to \pi^{\mp} N_j \to \pi^{\mp} ...
[ { "created": "Mon, 25 Sep 2023 16:46:26 GMT", "version": "v1" }, { "created": "Wed, 28 Feb 2024 19:25:36 GMT", "version": "v2" } ]
2024-03-01
[ [ "Cvetic", "Gorazd", "" ], [ "Kim", "C. S.", "" ] ]
We investigate rare decays of tau leptons that occur via exchange of heavy on-shell neutrinos $N_j$ ($j=1,2$). These neutrinos can be either Dirac or Majorana, and are considered to be almost degenerate in mass. The decays can thus be either lepton number conserving (LNC), $\tau^{\mp} \to \pi^{\mp} N_j \to \pi^{\mp} \m...
hep-ph/0410072
Alexander Nesterenko
A.V. Nesterenko and J. Papavassiliou
The QCD analytic running coupling and chiral symmetry breaking
Talk given at 11th International QCD Conference (QCD 04), 5 - 10 July 2004, Montpellier, France; 4 pages, 4 figures
Nucl.Phys.Proc.Suppl. 152 (2006) 47
10.1016/j.nuclphysbps.2005.08.009
FTUV-04-1005, IFIC-04-51
hep-ph hep-th
null
We study the dependence on the pion mass of the QCD effective charge by employing the dispersion relations for the Adler D function. This new massive analytic running coupling is compared to the effective coupling saturated by the dynamically generated gluon mass. A qualitative picture of the possible impact of the f...
[ { "created": "Tue, 5 Oct 2004 14:38:43 GMT", "version": "v1" } ]
2007-05-23
[ [ "Nesterenko", "A. V.", "" ], [ "Papavassiliou", "J.", "" ] ]
We study the dependence on the pion mass of the QCD effective charge by employing the dispersion relations for the Adler D function. This new massive analytic running coupling is compared to the effective coupling saturated by the dynamically generated gluon mass. A qualitative picture of the possible impact of the for...
1706.02651
Alisa Katanaeva
D. Espriu, A. Katanaeva
Holographic description of $SO(5) \rightarrow SO(4)$ composite Higgs model
29 pages, 2 figures
null
null
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study a 5D bottom-up holographic model that is expected to describe the dynamics of the minimal composite Higgs model characterized by a $SO(5)\to SO(4)$ global symmetry breaking pattern. We assume that the fundamental degrees of freedom are scalars transforming under some representation of $SO(5)$ and subject to ...
[ { "created": "Thu, 8 Jun 2017 15:49:16 GMT", "version": "v1" }, { "created": "Mon, 9 Oct 2017 17:12:54 GMT", "version": "v2" } ]
2017-10-10
[ [ "Espriu", "D.", "" ], [ "Katanaeva", "A.", "" ] ]
We study a 5D bottom-up holographic model that is expected to describe the dynamics of the minimal composite Higgs model characterized by a $SO(5)\to SO(4)$ global symmetry breaking pattern. We assume that the fundamental degrees of freedom are scalars transforming under some representation of $SO(5)$ and subject to so...
hep-ph/0202091
Osman Yilmaz
A. Gokalp, O. Yilmaz
The $\omega\sigma\gamma$-vertex in light cone QCD sum rules
5 pages, RevTex, 1 Figure
J.Phys.G28:1287-1291,2002
10.1088/0954-3899/28/6/311
null
hep-ph
null
We investigate the $\omega\sigma\gamma$-vertex and estimate the coupling constant g$_{\omega\sigma\gamma}$ in the framework of the light cone QCD sum rules. We compare our result with the values of this coupling constant deduced from a phenomenological analysis of $\omega\to\pi\pi\gamma$ decays.
[ { "created": "Sat, 9 Feb 2002 14:29:50 GMT", "version": "v1" }, { "created": "Tue, 9 Apr 2002 10:23:07 GMT", "version": "v2" } ]
2008-11-26
[ [ "Gokalp", "A.", "" ], [ "Yilmaz", "O.", "" ] ]
We investigate the $\omega\sigma\gamma$-vertex and estimate the coupling constant g$_{\omega\sigma\gamma}$ in the framework of the light cone QCD sum rules. We compare our result with the values of this coupling constant deduced from a phenomenological analysis of $\omega\to\pi\pi\gamma$ decays.
0808.2933
Yadong Yang
Qin Chang, Ya-Dong Yang
Rare decay $\pi^{0}\to e^+ e^-$ constraints on the light CP-odd Higgs in NMSSM
16 pages, 5 figures. Title changed, pi-A mixing included. Version to appear in PLB
Phys.Lett.B676:88-93,2009
10.1016/j.physletb.2009.04.081
null
hep-ph
http://creativecommons.org/licenses/by/3.0/
We constrain the light CP-odd Higgs $A_{1}^{0}$ in NMSSM via the rare decay $\pi^{0}\to e^{+}e^{-}$. It is shown that the possible $3\sigma$ discrepancy between theoretical predictions and the recent KTeV measurement of ${\cal B}({\pi}^{0}\to e^+ e^-)$ cannot be resolved when the constraints from $\Upsilon\to\gamma A...
[ { "created": "Thu, 21 Aug 2008 14:03:23 GMT", "version": "v1" }, { "created": "Thu, 7 May 2009 07:17:24 GMT", "version": "v2" } ]
2014-11-18
[ [ "Chang", "Qin", "" ], [ "Yang", "Ya-Dong", "" ] ]
We constrain the light CP-odd Higgs $A_{1}^{0}$ in NMSSM via the rare decay $\pi^{0}\to e^{+}e^{-}$. It is shown that the possible $3\sigma$ discrepancy between theoretical predictions and the recent KTeV measurement of ${\cal B}({\pi}^{0}\to e^+ e^-)$ cannot be resolved when the constraints from $\Upsilon\to\gamma A_1...
1604.03485
Andrei Kataev
A.L. Kataev and V.S. Molokoedov
From perturbative calculations of the QCD static potential towards four-loop pole-running heavy quarks masses relation
7 pages; based on the talk presented at the 17th Int. Workshop on Advanced Computing and Analysis Technique in physics research (ACAT-2016), Valparaiso, Chile, 18-22 January 2016
null
10.1088/1742-6596/762/1/012078
INR-TH-2016-010
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The summary of the available semi-analytical results for the three-loop corrections to the QCD static potential and for the $\mathcal{O}(\alpha_s^4)$ contributions to the ratio of the running and pole heavy quark masses are presented. The procedure of the determination of the dependence of the four-loop contribution ...
[ { "created": "Tue, 12 Apr 2016 17:10:38 GMT", "version": "v1" } ]
2016-12-21
[ [ "Kataev", "A. L.", "" ], [ "Molokoedov", "V. S.", "" ] ]
The summary of the available semi-analytical results for the three-loop corrections to the QCD static potential and for the $\mathcal{O}(\alpha_s^4)$ contributions to the ratio of the running and pole heavy quark masses are presented. The procedure of the determination of the dependence of the four-loop contribution to...
hep-ph/0407218
Genevieve Belanger
G.Belanger, F.Boudjema, A.Cottrant, A. Pukhov, A. Semenov
WMAP constraints on SUGRA models with non-universal gaugino masses and prospects for direct detection
45 pages, 18 figures
Nucl.Phys.B706:411-454,2005
10.1016/j.nuclphysb.2004.11.036
LAPTH-1052/04
hep-ph
null
We discuss constraints on supersymmetric models arising from the relic density measurements of WMAP as well as from direct and precision measurements, LEP, b-sgamma, g-2, Bs-mumu. We consider mSUGRA models and their extensions with non-universal gaugino masses. We find, as commonly known, that the relic density pinpo...
[ { "created": "Mon, 19 Jul 2004 19:50:10 GMT", "version": "v1" } ]
2008-11-26
[ [ "Belanger", "G.", "" ], [ "Boudjema", "F.", "" ], [ "Cottrant", "A.", "" ], [ "Pukhov", "A.", "" ], [ "Semenov", "A.", "" ] ]
We discuss constraints on supersymmetric models arising from the relic density measurements of WMAP as well as from direct and precision measurements, LEP, b-sgamma, g-2, Bs-mumu. We consider mSUGRA models and their extensions with non-universal gaugino masses. We find, as commonly known, that the relic density pinpoin...
1905.06219
Valery Lyubovitskij
Thomas Gutsche, Mikhail A. Ivanov, J\"urgen G. K\"orner, Valery E. Lyubovitskij
Novel ideas in nonleptonic decays of double heavy baryons
17 pages. arXiv admin note: text overlap with arXiv:1812.09212
Particles 2019, 2, 339
10.3390/particles2020021
MITP/19-030
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The recent discovery of double charm baryon states by the LHCb Collaborarion and their high precision mass determination calls for a comprehensive analysis of the nonleptonic decays of double and single heavy baryons. Nonleptonic baryon decays play an important role in particle phenomenology since they allow to study...
[ { "created": "Wed, 15 May 2019 14:46:29 GMT", "version": "v1" }, { "created": "Thu, 13 Jun 2019 19:35:53 GMT", "version": "v2" } ]
2019-06-18
[ [ "Gutsche", "Thomas", "" ], [ "Ivanov", "Mikhail A.", "" ], [ "Körner", "Jürgen G.", "" ], [ "Lyubovitskij", "Valery E.", "" ] ]
The recent discovery of double charm baryon states by the LHCb Collaborarion and their high precision mass determination calls for a comprehensive analysis of the nonleptonic decays of double and single heavy baryons. Nonleptonic baryon decays play an important role in particle phenomenology since they allow to study t...
2304.14336
Tiziano Peraro
Gaia Fontana, Tiziano Peraro
Reduction to master integrals via intersection numbers and polynomial expansions
36 pages, 5 figures, published version
JHEP 08 (2023) 175
10.1007/JHEP08(2023)175
ZU-TH 19/23
hep-ph hep-th
http://creativecommons.org/licenses/by/4.0/
Intersection numbers are rational scalar products among functions that admit suitable integral representations, such as Feynman integrals. Using these scalar products, the decomposition of Feynman integrals into a basis of linearly independent master integrals is reduced to a projection. We present a new method for c...
[ { "created": "Thu, 27 Apr 2023 17:12:41 GMT", "version": "v1" }, { "created": "Fri, 13 Oct 2023 16:28:39 GMT", "version": "v2" } ]
2023-10-16
[ [ "Fontana", "Gaia", "" ], [ "Peraro", "Tiziano", "" ] ]
Intersection numbers are rational scalar products among functions that admit suitable integral representations, such as Feynman integrals. Using these scalar products, the decomposition of Feynman integrals into a basis of linearly independent master integrals is reduced to a projection. We present a new method for com...
1411.4014
Satyanarayan Mukhopadhyay
Hajime Fukuda, Shigeki Matsumoto and Satyanarayan Mukhopadhyay
Does asymmetric dark matter always lead to an anti-neutrino signal?
4 pages, 1 figure
Phys. Rev. D 92, 013008 (2015)
10.1103/PhysRevD.92.013008
IPMU14-0341
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Under rather generic assumptions, we show that in the asymmetric dark matter (ADM) scenario, the sign of the B-L asymmetry stored in the dark matter sector and the standard model sector are always the same. One particularly striking consequence of this result is that, when the dark matter decays or annihilates in the...
[ { "created": "Fri, 14 Nov 2014 19:19:05 GMT", "version": "v1" } ]
2015-07-22
[ [ "Fukuda", "Hajime", "" ], [ "Matsumoto", "Shigeki", "" ], [ "Mukhopadhyay", "Satyanarayan", "" ] ]
Under rather generic assumptions, we show that in the asymmetric dark matter (ADM) scenario, the sign of the B-L asymmetry stored in the dark matter sector and the standard model sector are always the same. One particularly striking consequence of this result is that, when the dark matter decays or annihilates in the p...
2401.16904
Jason Aebischer
Jason Aebischer, Marko Pesut, Zachary Polonsky
A Simple Dirac Prescription for Two-Loop Anomalous Dimension Matrices
31 pages, 3 figures, explanations and appendix added, matches published version
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A novel method to treat effects from evanescent operators in next-to-leading order (NLO) computations is introduced. The approach allows, besides further simplifications, to discard evanescent-to-physical mixing contributions in NLO calculations. The method is independent of the treatments of $\gamma_5$ and can there...
[ { "created": "Tue, 30 Jan 2024 11:12:13 GMT", "version": "v1" }, { "created": "Sun, 4 Aug 2024 19:00:30 GMT", "version": "v2" } ]
2024-08-06
[ [ "Aebischer", "Jason", "" ], [ "Pesut", "Marko", "" ], [ "Polonsky", "Zachary", "" ] ]
A novel method to treat effects from evanescent operators in next-to-leading order (NLO) computations is introduced. The approach allows, besides further simplifications, to discard evanescent-to-physical mixing contributions in NLO calculations. The method is independent of the treatments of $\gamma_5$ and can therefo...
hep-ph/0111274
Chris Quigg
Chris Quigg
Particle Physics-Future Directions
Invited paper at the 2001 Particle Accelerator Conference, Chicago; 5 pages; uses JAC2001.cls (included)
Conf.Proc.C0106181:754-758,2001
null
Fermilab-Conf-01/360-T
hep-ph
null
Wonderful opportunities await particle physics over the next decade, with the coming of the Large Hadron Collider at CERN to explore the 1-TeV scale (extending efforts at LEP and the Tevatron to unravel the nature of electroweak symmetry breaking) and many initiatives to develop our understanding of the problem of id...
[ { "created": "Thu, 22 Nov 2001 04:31:05 GMT", "version": "v1" } ]
2008-11-26
[ [ "Quigg", "Chris", "" ] ]
Wonderful opportunities await particle physics over the next decade, with the coming of the Large Hadron Collider at CERN to explore the 1-TeV scale (extending efforts at LEP and the Tevatron to unravel the nature of electroweak symmetry breaking) and many initiatives to develop our understanding of the problem of iden...
2007.04494
Bet\^ania Camille Backes
B. C. Backes, E. Hafemann, I. Marzolla, D. P. Menezes
Density dependent quark mass model revisited: Thermodynamic consistency, stability windows and stellar properties
9 pages, 12 figures
null
10.1088/1361-6471/abc6e9
null
hep-ph astro-ph.HE nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work a density dependent quark model is revisited, its thermodynamic consistency checked and the stability window for absolutely stable quark matter obtained. The hypotheses of both pure quark matter with equal quark chemical potentials and stellar matter subject to chemical stability and charge neutrality ar...
[ { "created": "Thu, 9 Jul 2020 01:11:49 GMT", "version": "v1" } ]
2021-05-26
[ [ "Backes", "B. C.", "" ], [ "Hafemann", "E.", "" ], [ "Marzolla", "I.", "" ], [ "Menezes", "D. P.", "" ] ]
In this work a density dependent quark model is revisited, its thermodynamic consistency checked and the stability window for absolutely stable quark matter obtained. The hypotheses of both pure quark matter with equal quark chemical potentials and stellar matter subject to chemical stability and charge neutrality are ...
hep-ph/0607061
Hai-Yang Cheng
Hai-Yang Cheng
Status of baryonic B decays
6 pages, 1 figure, talk presented at the Fist Workshop on Theory, Phenomenology and Experiments in Heavy Flavor Physics, Capri, Italy, May 29-31, 2006
Nucl.Phys.Proc.Suppl.163:68-73,2007
10.1016/j.nuclphysbps.2006.09.004
null
hep-ph hep-ex
null
An overview of exclusive two-body and three-body baryonic B decays is given. The threshold enhancement effect in the dibaryon invariant mass and the angular distributions in the dibaryon rest frame are stressed and explained. Weak radiative baryonic B decays mediated by the electromagnetic penguin process $b\to s\gam...
[ { "created": "Thu, 6 Jul 2006 03:33:58 GMT", "version": "v1" } ]
2008-11-26
[ [ "Cheng", "Hai-Yang", "" ] ]
An overview of exclusive two-body and three-body baryonic B decays is given. The threshold enhancement effect in the dibaryon invariant mass and the angular distributions in the dibaryon rest frame are stressed and explained. Weak radiative baryonic B decays mediated by the electromagnetic penguin process $b\to s\gamma...
hep-ph/9604213
Mohammad Ahmady
M. R. Ahmady (Ochanomizu University), V. Elias, A. H. Fariborz (University of Western Ontario) and R. R. Mendel (Deceased)
Induced Light-Quark Yukawa Couplings as a probe of Low-Energy Dynamics in QCD
12 pages, Latex, 2 figures (not included, available upon request)
Prog.Theor.Phys. 96 (1996) 781-786
10.1143/PTP.96.781
OCHA-PP-75
hep-ph
null
We examine the heavy-quark-induced Yukawa interaction between light quarks and a light Higgs field, which is facilitated in the chiral limit by the dynamical mass of light quarks anticipated from the chiral-noninvariance of the QCD vacuum. A low-energy estimate of the strong coupling near unity can be obtained from a...
[ { "created": "Tue, 2 Apr 1996 05:51:52 GMT", "version": "v1" } ]
2009-10-28
[ [ "Ahmady", "M. R.", "", "Ochanomizu University" ], [ "Elias", "V.", "", "University of Western Ontario" ], [ "Fariborz", "A. H.", "", "University of Western Ontario" ], [ "Mendel", "R. R.", "", "Deceased" ] ]
We examine the heavy-quark-induced Yukawa interaction between light quarks and a light Higgs field, which is facilitated in the chiral limit by the dynamical mass of light quarks anticipated from the chiral-noninvariance of the QCD vacuum. A low-energy estimate of the strong coupling near unity can be obtained from a c...
hep-ph/0701136
Jing Jiang
V. Barger, N.G. Deshpande, Jing Jiang, Paul Langacker, Tianjun Li
Implications of Canonical Gauge Coupling Unification in High-Scale Supersymmetry Breaking
25 pages, 4 figures
Nucl.Phys.B793:307-325,2008
10.1016/j.nuclphysb.2007.10.013
MADPH-07-1477, MIFP-06-36, OITS-787
hep-ph
null
We systematically construct two kinds of models with canonical gauge coupling unification and universal high-scale supersymmetry breaking. In the first we introduce standard vector-like particles while in the second we also include non-standard vector-like particles. We require that the gauge coupling unification sca...
[ { "created": "Wed, 17 Jan 2007 21:30:55 GMT", "version": "v1" } ]
2008-11-26
[ [ "Barger", "V.", "" ], [ "Deshpande", "N. G.", "" ], [ "Jiang", "Jing", "" ], [ "Langacker", "Paul", "" ], [ "Li", "Tianjun", "" ] ]
We systematically construct two kinds of models with canonical gauge coupling unification and universal high-scale supersymmetry breaking. In the first we introduce standard vector-like particles while in the second we also include non-standard vector-like particles. We require that the gauge coupling unification scale...
1009.1453
Xing-Gang Wu
Li-Cheng Deng, Xing-Gang Wu, Zhi Yang, Zhen-Yun Fang and Qi-Li Liao
$Z_0$ Boson Decays to $B^{(*)}_c$ Meson and Its Uncertainties
11 pages, 5 figures, 2 tables. To be published in Eur.Phys.J.C
Eur.Phys.J.C70:113-124,2010
10.1140/epjc/s10052-010-1450-z
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The programming new $e^{+}e^-$ collider with high luminosity shall provide another useful platform to study the properties of the doubly heavy $B_c$ meson in addition to the hadronic colliders as LHC and TEVATRON. Under the `New Trace Amplitude Approach', we calculate the production of the spin-singlet $B_c$ and the ...
[ { "created": "Wed, 8 Sep 2010 05:49:21 GMT", "version": "v1" } ]
2010-11-26
[ [ "Deng", "Li-Cheng", "" ], [ "Wu", "Xing-Gang", "" ], [ "Yang", "Zhi", "" ], [ "Fang", "Zhen-Yun", "" ], [ "Liao", "Qi-Li", "" ] ]
The programming new $e^{+}e^-$ collider with high luminosity shall provide another useful platform to study the properties of the doubly heavy $B_c$ meson in addition to the hadronic colliders as LHC and TEVATRON. Under the `New Trace Amplitude Approach', we calculate the production of the spin-singlet $B_c$ and the sp...
1902.09265
Sebastian Baur
Sebastian Baur, Hans Dembinski, Matias Perlin, Tanguy Pierog, Ralf Ulrich, Klaus Werner
Core-corona effect in hadron collisions and muon production in air showers
null
Physical Review D (Vol. 107, No. 9) 2023
10.1103/PhysRevD.107.094031
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is very well known that the fraction of energy in a hadron collision going into electromagnetic particles (electrons and photons, including those from decays) has a large impact on the number of muons produced in air shower cascades. Recent measurements at the LHC confirm features that can be linked to a mixture o...
[ { "created": "Mon, 25 Feb 2019 13:53:24 GMT", "version": "v1" }, { "created": "Fri, 13 Mar 2020 09:46:40 GMT", "version": "v2" } ]
2023-05-31
[ [ "Baur", "Sebastian", "" ], [ "Dembinski", "Hans", "" ], [ "Perlin", "Matias", "" ], [ "Pierog", "Tanguy", "" ], [ "Ulrich", "Ralf", "" ], [ "Werner", "Klaus", "" ] ]
It is very well known that the fraction of energy in a hadron collision going into electromagnetic particles (electrons and photons, including those from decays) has a large impact on the number of muons produced in air shower cascades. Recent measurements at the LHC confirm features that can be linked to a mixture of ...
hep-ph/0201118
Mikhail Ivanov
Mikhail A. Ivanov (Dubna, JINR)
Semileptonic decays of the bottom-charm hadrons
Talk given at the XVIth International Workshop on High Energy Physics and Quantum Field Theory, 6-12 September 2001, Moscow
null
null
null
hep-ph
null
We present the results of a study of the semileptonic decays of the $B_c$-meson and the lowest lying doubly heavy baryons using the relativistic quark model. We do not employ a heavy quark mass expansion but keep the masses of the heavy quarks and hadronss finite. We calculate all relevant form factors and decay rate...
[ { "created": "Mon, 14 Jan 2002 13:16:23 GMT", "version": "v1" } ]
2007-05-23
[ [ "Ivanov", "Mikhail A.", "", "Dubna, JINR" ] ]
We present the results of a study of the semileptonic decays of the $B_c$-meson and the lowest lying doubly heavy baryons using the relativistic quark model. We do not employ a heavy quark mass expansion but keep the masses of the heavy quarks and hadronss finite. We calculate all relevant form factors and decay rates.
1102.4704
C\'edric Lorc\'e
C\'edric Lorc\'e, Barbara Pasquini and Marc Vanderhaeghen
Unified framework for generalized and transverse-momentum dependent parton distributions within a 3Q light-cone picture of the nucleon
version to appear in JHEP
JHEP 1105:041,2011
10.1007/JHEP05(2011)041
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a systematic study of generalized transverse-momentum dependent parton distributions (GTMDs). By taking specific limits or projections, these GTMDs yield various transverse-momentum dependent and generalized parton distributions, thus providing a unified framework to simultaneously model different observab...
[ { "created": "Wed, 23 Feb 2011 10:01:51 GMT", "version": "v1" }, { "created": "Thu, 5 May 2011 12:07:59 GMT", "version": "v2" } ]
2011-05-12
[ [ "Lorcé", "Cédric", "" ], [ "Pasquini", "Barbara", "" ], [ "Vanderhaeghen", "Marc", "" ] ]
We present a systematic study of generalized transverse-momentum dependent parton distributions (GTMDs). By taking specific limits or projections, these GTMDs yield various transverse-momentum dependent and generalized parton distributions, thus providing a unified framework to simultaneously model different observable...
1206.2253
Stefan Leupold
Stefan Leupold and Carla Terschlusen (Uppsala U.)
Towards an effective field theory for vector mesons
Talk presented at the 50th International Winter Meeting on Nuclear Physics, 23-27 January 2012, Bormio (Italy)
null
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The assumption that vector mesons dominate the interactions of hadrons with electromagnetism (vector-meson dominance - VMD) provides an important phenomenological concept. On the other hand, a clear microscopic derivation is still missing and there are cases where VMD drastically fails, e.g. for the omega transition ...
[ { "created": "Mon, 11 Jun 2012 15:25:17 GMT", "version": "v1" } ]
2012-06-12
[ [ "Leupold", "Stefan", "", "Uppsala U." ], [ "Terschlusen", "Carla", "", "Uppsala U." ] ]
The assumption that vector mesons dominate the interactions of hadrons with electromagnetism (vector-meson dominance - VMD) provides an important phenomenological concept. On the other hand, a clear microscopic derivation is still missing and there are cases where VMD drastically fails, e.g. for the omega transition fo...
1009.2720
Elizabeth H. Simmons
R. Sekhar Chivukula, Neil D. Christensen, Baradhwaj Coleppa, and Elizabeth H. Simmons
Deconstructed Higgsless Models at LHC: The Top Triangle Moose
5 pages, 3 figures; from the Proceedings of the 2010 Rencontres de Blois
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We describe a deconstructed Higgsless model in which electroweak symmetry breaking results largely from a Higgsless mechanism while the top quark mass is generated by a topcolor mechanism. The top quark mass arises from a Yukawa coupling to an effective top-Higgs which develops a small vacuum expectation value. Both ...
[ { "created": "Tue, 14 Sep 2010 17:29:48 GMT", "version": "v1" } ]
2010-09-15
[ [ "Chivukula", "R. Sekhar", "" ], [ "Christensen", "Neil D.", "" ], [ "Coleppa", "Baradhwaj", "" ], [ "Simmons", "Elizabeth H.", "" ] ]
We describe a deconstructed Higgsless model in which electroweak symmetry breaking results largely from a Higgsless mechanism while the top quark mass is generated by a topcolor mechanism. The top quark mass arises from a Yukawa coupling to an effective top-Higgs which develops a small vacuum expectation value. Both th...
hep-ph/9612212
null
J.M. Moreno, D.H. Oaknin and M. Quiros
Squarks and sphalerons
11 pages, LateX + psfig.sty, 1 figure
Phys.Lett.B395:234-240,1997
10.1016/S0370-2693(97)00058-0
IEM-FT-146/96
hep-ph
null
Electric charge and color breaking minima along third generation squark directions do appear in the Minimal Supersymmetric Standard Model for particular regions of the corresponding supersymmetric parameters $A_t$, $\mu$, $\tan\beta$, $m_Q^2$ and $m_U^2$. We have studied possible instabilities of electroweak sphalero...
[ { "created": "Sat, 30 Nov 1996 09:24:16 GMT", "version": "v1" } ]
2011-07-19
[ [ "Moreno", "J. M.", "" ], [ "Oaknin", "D. H.", "" ], [ "Quiros", "M.", "" ] ]
Electric charge and color breaking minima along third generation squark directions do appear in the Minimal Supersymmetric Standard Model for particular regions of the corresponding supersymmetric parameters $A_t$, $\mu$, $\tan\beta$, $m_Q^2$ and $m_U^2$. We have studied possible instabilities of electroweak sphalerons...
hep-ph/9908276
Alexander Kusenko
Graciela Gelmini and Alexander Kusenko
Unstable superheavy relic particles as a source of neutrinos responsible for the ultrahigh-energy cosmic rays
3 pages, revtex; references added
Phys.Rev.Lett. 84 (2000) 1378
10.1103/PhysRevLett.84.1378
UCLA/99/TEP/24
hep-ph astro-ph
null
Decays of superheavy relic particles may produce extremely energetic neutrinos. Their annihilations on the relic neutrinos can be the origin of the cosmic rays with energies beyond the Greisen-Zatsepin-Kuzmin cutoff. The red shift acts as a cosmological filter selecting the sources at some particular value z_e, for w...
[ { "created": "Thu, 5 Aug 1999 21:02:10 GMT", "version": "v1" }, { "created": "Tue, 4 Jan 2000 16:28:36 GMT", "version": "v2" }, { "created": "Thu, 17 Feb 2000 05:59:13 GMT", "version": "v3" } ]
2009-10-31
[ [ "Gelmini", "Graciela", "" ], [ "Kusenko", "Alexander", "" ] ]
Decays of superheavy relic particles may produce extremely energetic neutrinos. Their annihilations on the relic neutrinos can be the origin of the cosmic rays with energies beyond the Greisen-Zatsepin-Kuzmin cutoff. The red shift acts as a cosmological filter selecting the sources at some particular value z_e, for whi...
2307.13050
Noah Franz
Noah Franz, Mitchell Dennis, Jeremy Sakstein
Tip of the Red Giant Branch Bounds on the Neutrino Magnetic Dipole Moment Revisited
12 pages, 5 figures. Dataset and code available at https://zenodo.org/record/8173321
null
null
null
hep-ph astro-ph.SR
http://creativecommons.org/licenses/by/4.0/
We use a novel method to constrain the neutrino magnetic dipole moment ($\mu_{\nu}$) using the empirically-calibrated tip of the red giant branch I-band magnitude that fully accounts for uncertainties in stellar physics. Our method uses machine learning to emulate the results of stellar evolution codes. This reduces ...
[ { "created": "Mon, 24 Jul 2023 18:01:30 GMT", "version": "v1" } ]
2023-07-26
[ [ "Franz", "Noah", "" ], [ "Dennis", "Mitchell", "" ], [ "Sakstein", "Jeremy", "" ] ]
We use a novel method to constrain the neutrino magnetic dipole moment ($\mu_{\nu}$) using the empirically-calibrated tip of the red giant branch I-band magnitude that fully accounts for uncertainties in stellar physics. Our method uses machine learning to emulate the results of stellar evolution codes. This reduces th...
1802.10500
Hiren Patel
Lauri Niemi, Hiren H. Patel, Michael J. Ramsey-Musolf, Tuomas V. I. Tenkanen, David J. Weir
Electroweak phase transition in the $\Sigma$SM - I: Dimensional reduction
16 pages, 5 figures
Phys. Rev. D 100, 035002 (2019)
10.1103/PhysRevD.100.035002
ACFI-T18-04, HIP-2018-7/TH
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In a series of two papers, we make a comparative analysis of the performance of conventional perturbation theory to analyze electroweak phase transition in the real triplet extension of Standard Model ($\Sigma$SM). In Part I (this paper), we derive and present the high-$T$ dimensionally reduced effective theory that ...
[ { "created": "Wed, 28 Feb 2018 16:06:02 GMT", "version": "v1" } ]
2019-08-14
[ [ "Niemi", "Lauri", "" ], [ "Patel", "Hiren H.", "" ], [ "Ramsey-Musolf", "Michael J.", "" ], [ "Tenkanen", "Tuomas V. I.", "" ], [ "Weir", "David J.", "" ] ]
In a series of two papers, we make a comparative analysis of the performance of conventional perturbation theory to analyze electroweak phase transition in the real triplet extension of Standard Model ($\Sigma$SM). In Part I (this paper), we derive and present the high-$T$ dimensionally reduced effective theory that is...
0909.5410
Arman Esmaili
Arman Esmaili
Pseudo-Dirac Neutrino Scenario: Cosmic Neutrinos at Neutrino Telescopes
24 pages, 5 figures
Phys.Rev.D81:013006,2010
10.1103/PhysRevD.81.013006
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Within the "pseudo-Dirac" scenario for massive neutrinos the existence of sterile neutrinos which are almost degenerate in mass with the active ones is hypothesized. The presence of these sterile neutrinos can affect the flavor composition of cosmic neutrinos arriving at Earth after traveling large distances from ast...
[ { "created": "Tue, 29 Sep 2009 19:09:15 GMT", "version": "v1" } ]
2010-02-11
[ [ "Esmaili", "Arman", "" ] ]
Within the "pseudo-Dirac" scenario for massive neutrinos the existence of sterile neutrinos which are almost degenerate in mass with the active ones is hypothesized. The presence of these sterile neutrinos can affect the flavor composition of cosmic neutrinos arriving at Earth after traveling large distances from astro...
2208.07910
Benjamin Nachman
Benjamin Nachman
When, Where, and How to Open Data: A Personal Perspective
11 pages, 2 figures, contribution to Snowmass 2021
null
null
null
hep-ph hep-ex physics.data-an
http://creativecommons.org/licenses/by/4.0/
This is a personal perspective on data sharing in the context of public data releases suitable for generic analysis. These open data can be a powerful tool for expanding the science of high energy physics, but care must be taken in when, where, and how they are utilized. I argue that data preservation even within col...
[ { "created": "Tue, 16 Aug 2022 18:53:29 GMT", "version": "v1" } ]
2022-08-18
[ [ "Nachman", "Benjamin", "" ] ]
This is a personal perspective on data sharing in the context of public data releases suitable for generic analysis. These open data can be a powerful tool for expanding the science of high energy physics, but care must be taken in when, where, and how they are utilized. I argue that data preservation even within colla...
hep-ph/0007120
Alessandro Bacchetta
A. Bacchetta, P.J. Mulders (Vrije Universiteit Amsterdam)
Deep inelastic leptoproduction of spin-one hadrons
18 pages, 7 figures, Revtex
Phys.Rev. D62 (2000) 114004
10.1103/PhysRevD.62.114004
VUTH 00-20
hep-ph
null
In this paper we analyze deep inelastic one-particle inclusive processes for the case of spin-one targets or for the case of spin-one produced hadrons, such as rho mesons. This allows the measurement of new distribution and fragmentation functions not available in the spin-half case, and provides new ways to probe fu...
[ { "created": "Wed, 12 Jul 2000 16:29:14 GMT", "version": "v1" } ]
2009-10-31
[ [ "Bacchetta", "A.", "", "Vrije Universiteit Amsterdam" ], [ "Mulders", "P. J.", "", "Vrije Universiteit Amsterdam" ] ]
In this paper we analyze deep inelastic one-particle inclusive processes for the case of spin-one targets or for the case of spin-one produced hadrons, such as rho mesons. This allows the measurement of new distribution and fragmentation functions not available in the spin-half case, and provides new ways to probe func...
0704.3446
Pearl Sandick
John Ellis, Keith A. Olive and Pearl Sandick
Phenomenology of GUT-less Supersymmetry Breaking
35 pages, 9 figures; typos corrected, references added
JHEP 0706:079,2007
10.1088/1126-6708/2007/06/079
CERN-PH-TH/2007-073, UMN-TH-2602/07, FTPI-MINN-07/15
hep-ph astro-ph hep-ex
null
We study models in which supersymmetry breaking appears at an intermediate scale, M_{in}, below the GUT scale. We assume that the soft supersymmetry-breaking parameters of the MSSM are universal at M_{in}, and analyze the morphology of the constraints from cosmology and collider experiments on the allowed regions of ...
[ { "created": "Wed, 25 Apr 2007 17:55:32 GMT", "version": "v1" }, { "created": "Tue, 7 Aug 2007 12:44:32 GMT", "version": "v2" } ]
2009-11-13
[ [ "Ellis", "John", "" ], [ "Olive", "Keith A.", "" ], [ "Sandick", "Pearl", "" ] ]
We study models in which supersymmetry breaking appears at an intermediate scale, M_{in}, below the GUT scale. We assume that the soft supersymmetry-breaking parameters of the MSSM are universal at M_{in}, and analyze the morphology of the constraints from cosmology and collider experiments on the allowed regions of pa...
1411.4647
Francesca Calore
Francesca Calore, Ilias Cholis, Christopher McCabe, Christoph Weniger
A Tale of Tails: Dark Matter Interpretations of the Fermi GeV Excess in Light of Background Model Systematics
18 pages, 9 figures, 4 tables. It matches the published version. Figure 1 corrected
Phys. Rev. D 91, 063003 (2015)
10.1103/PhysRevD.91.063003
FERMILAB-PUB-14-477-A
hep-ph astro-ph.CO astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Several groups have identified an extended excess of gamma rays over the modeled foreground and background emissions towards the Galactic center (GC) based on observations with the Fermi Large Area Telescope. This excess emission is compatible in morphology and spectrum with a telltale sign from dark matter (DM) anni...
[ { "created": "Mon, 17 Nov 2014 21:00:06 GMT", "version": "v1" }, { "created": "Sun, 26 Apr 2015 16:33:40 GMT", "version": "v2" } ]
2015-04-28
[ [ "Calore", "Francesca", "" ], [ "Cholis", "Ilias", "" ], [ "McCabe", "Christopher", "" ], [ "Weniger", "Christoph", "" ] ]
Several groups have identified an extended excess of gamma rays over the modeled foreground and background emissions towards the Galactic center (GC) based on observations with the Fermi Large Area Telescope. This excess emission is compatible in morphology and spectrum with a telltale sign from dark matter (DM) annihi...
hep-ph/0407117
Francesco Becattini
F. Becattini, L. Ferroni
Statistical hadronization and hadronic microcanonical ensemble II
23 pages, 21 figures, style files attached. Published version, minor corrections
Eur.Phys.J.C38:225-246,2004; Erratum-ibid.66:341,2010
10.1140/epjc/s2004-02027-8 10.1140/epjc/s10052-010-1243-4
null
hep-ph
null
We present a Monte-Carlo calculation of the microcanonical ensemble of the of the ideal hadron-resonance gas including all known states up to a mass of about 1.8 GeV and full quantum statistics. The microcanonical average multiplicities of the various hadron species are found to converge to the canonical ones for mod...
[ { "created": "Fri, 9 Jul 2004 15:47:00 GMT", "version": "v1" }, { "created": "Wed, 21 Jul 2004 16:36:51 GMT", "version": "v2" }, { "created": "Thu, 14 Jul 2005 15:49:27 GMT", "version": "v3" } ]
2014-11-17
[ [ "Becattini", "F.", "" ], [ "Ferroni", "L.", "" ] ]
We present a Monte-Carlo calculation of the microcanonical ensemble of the of the ideal hadron-resonance gas including all known states up to a mass of about 1.8 GeV and full quantum statistics. The microcanonical average multiplicities of the various hadron species are found to converge to the canonical ones for moder...
2105.05884
Benjamin Rodriguez-Aguilar
Benjamin Rodriguez-Aguilar and Ya. A. Berdnikov
Parton Distribution Functions for diquarks based on an AdS/QCD quark-diquark nucleon model
null
null
10.18721/JPM.14208
null
hep-ph
http://creativecommons.org/licenses/by-nc-sa/4.0/
We present a phenomenological unpolarized Parton Distribution Functions for diquarks based on a soft-wall light front AdS/QCD quark-diquark nucleon model. From a probed model consistent with the Drewll-Yan-West relation and quark counting rule, we have performed a fit of some free parameters using known phenomenologi...
[ { "created": "Wed, 12 May 2021 18:21:12 GMT", "version": "v1" } ]
2021-07-09
[ [ "Rodriguez-Aguilar", "Benjamin", "" ], [ "Berdnikov", "Ya. A.", "" ] ]
We present a phenomenological unpolarized Parton Distribution Functions for diquarks based on a soft-wall light front AdS/QCD quark-diquark nucleon model. From a probed model consistent with the Drewll-Yan-West relation and quark counting rule, we have performed a fit of some free parameters using known phenomenologica...
1506.08462
Siannah Penaranda-Rivas
E. Arganda, J. Guasch, W. Hollik and S. Penaranda
Discriminating between SUSY and Non-SUSY Higgs Sectors through the Ratio $H \to b \bar b / H \to \tau^+ \tau^-$ with a 125 GeV Higgs boson
11 pages, 3 figures, 1 table
null
10.1140/epjc/s10052-016-4129-2
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is still an open question whether the new scalar particle discovered at the LHC with a mass of 125 GeV is the SM Higgs boson or it belongs to models of new physics with an extended Higgs sector, as the MSSM or 2HDM. The ratio of branching fractions $R$ = BR($H \to b \bar b$)/BR($H \to \tau^+ \tau^-$) of Higgs boso...
[ { "created": "Sun, 28 Jun 2015 22:32:10 GMT", "version": "v1" }, { "created": "Tue, 7 Jul 2015 07:57:38 GMT", "version": "v2" } ]
2016-06-22
[ [ "Arganda", "E.", "" ], [ "Guasch", "J.", "" ], [ "Hollik", "W.", "" ], [ "Penaranda", "S.", "" ] ]
It is still an open question whether the new scalar particle discovered at the LHC with a mass of 125 GeV is the SM Higgs boson or it belongs to models of new physics with an extended Higgs sector, as the MSSM or 2HDM. The ratio of branching fractions $R$ = BR($H \to b \bar b$)/BR($H \to \tau^+ \tau^-$) of Higgs boson ...
1001.5065
David Emmanuel-Costa
G.C. Branco, D. Emmanuel-Costa, C. Simoes
Nearest-Neighbour Interaction from an Abelian Symmetry and Deviations from Hermiticity
11 pages, 1 figure; references and minor corrections added
Phys.Lett.B690:62-67,2010
10.1016/j.physletb.2010.05.009
CFTP/10-002
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show that Nearest-Neighbour Interaction (NNI) textures for the quark mass matrices can be obtained through the introduction of an Abelian flavour symmetry. The minimal realisation requires a Z_4 symmetry in the context of a two Higgs doublet model. It is further shown that the NNI textures can be in agreement with...
[ { "created": "Wed, 27 Jan 2010 23:40:10 GMT", "version": "v1" }, { "created": "Fri, 12 Feb 2010 12:22:46 GMT", "version": "v2" } ]
2014-11-20
[ [ "Branco", "G. C.", "" ], [ "Emmanuel-Costa", "D.", "" ], [ "Simoes", "C.", "" ] ]
We show that Nearest-Neighbour Interaction (NNI) textures for the quark mass matrices can be obtained through the introduction of an Abelian flavour symmetry. The minimal realisation requires a Z_4 symmetry in the context of a two Higgs doublet model. It is further shown that the NNI textures can be in agreement with a...
hep-ph/0501295
Sergey Kovalenko
P. Benes, Amand Faessler, S. Kovalenko and F. Simkovic
Sterile neutrinos in neutrinoless double beta decay
6 pages, 1 figure; v2 added comments and references
Phys.Rev. D71 (2005) 077901
10.1103/PhysRevD.71.077901
null
hep-ph
null
We study possible contribution of the Majorana neutrino mass eigenstate $\nu_h$ dominated by a sterile neutrino component to neutrinoless double beta ($0\nu\beta\beta$) decay. From the current experimental lower bound on the $0\nu\beta\beta$-decay half-life of $^{76}$Ge we derive stringent constraints on the $\nu_h-\...
[ { "created": "Mon, 31 Jan 2005 19:42:58 GMT", "version": "v1" }, { "created": "Mon, 14 Feb 2005 04:29:23 GMT", "version": "v2" } ]
2009-11-11
[ [ "Benes", "P.", "" ], [ "Faessler", "Amand", "" ], [ "Kovalenko", "S.", "" ], [ "Simkovic", "F.", "" ] ]
We study possible contribution of the Majorana neutrino mass eigenstate $\nu_h$ dominated by a sterile neutrino component to neutrinoless double beta ($0\nu\beta\beta$) decay. From the current experimental lower bound on the $0\nu\beta\beta$-decay half-life of $^{76}$Ge we derive stringent constraints on the $\nu_h-\nu...
hep-ph/9706546
Osamu Yasuda 0426-77-1111x3376
Osamu Yasuda
Three flavor neutrino oscillation analysis of the kamiokande atmospheric neutrino data
15 pages + 1 LaTeX figure + 2 PostScript figures
null
null
TMUP-HEL-9706
hep-ph
null
Using the published Kamiokande binned data for sub-GeV and multi-GeV atmospheric neutrinos, we have searched for the optimum set of three flavor neutrino oscillation parameters within the constraints of reactor experiments. It is found that chi^2 is minimized for (Delta m_{21}^2, Delta m_{32}^2, theta_{12}, theta_{13...
[ { "created": "Mon, 30 Jun 1997 13:52:29 GMT", "version": "v1" } ]
2007-05-23
[ [ "Yasuda", "Osamu", "" ] ]
Using the published Kamiokande binned data for sub-GeV and multi-GeV atmospheric neutrinos, we have searched for the optimum set of three flavor neutrino oscillation parameters within the constraints of reactor experiments. It is found that chi^2 is minimized for (Delta m_{21}^2, Delta m_{32}^2, theta_{12}, theta_{13},...
hep-ph/9401314
null
B. Badelek and J. Kwiecinski
Shadowing in the Deuteron and the New $F_2^n/F_2^p$ Measurements
7 pages Uppsala University preprint number TSL/ISV-93-0090 (December 1993)
Phys.Rev.D50:4-8,1994
10.1103/PhysRevD.50.R4
null
hep-ph
null
The quantity $2F_2^d(x,Q^2)/F_2^p(x,Q^2)-1$ is calculated in the region of low $x$ and low- and moderate $Q^2$ relevant for recent NMC and E665 measurements as well as for the expected final results of the precise NMC analysis of their low $x$ data. The calculations include nuclear shadowing effects and a suitable ex...
[ { "created": "Mon, 24 Jan 1994 16:43:00 GMT", "version": "v1" } ]
2009-12-30
[ [ "Badelek", "B.", "" ], [ "Kwiecinski", "J.", "" ] ]
The quantity $2F_2^d(x,Q^2)/F_2^p(x,Q^2)-1$ is calculated in the region of low $x$ and low- and moderate $Q^2$ relevant for recent NMC and E665 measurements as well as for the expected final results of the precise NMC analysis of their low $x$ data. The calculations include nuclear shadowing effects and a suitable extr...
1606.08853
Peter Arnold
Peter Arnold, Han-Chih Chang and Shahin Iqbal
The LPM effect in sequential bremsstrahlung: dimensional regularization
59 pages, 8 figures [main change from v1: addition of the new appendix B summarizing more about use of the i*epsilon prescription in earlier work]
null
10.1007/JHEP10(2016)100
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The splitting processes of bremsstrahlung and pair production in a medium are coherent over large distances in the very high energy limit, which leads to a suppression known as the Landau-Pomeranchuk-Migdal (LPM) effect. Of recent interest is the case when the coherence lengths of two consecutive splitting processes ...
[ { "created": "Tue, 28 Jun 2016 20:00:07 GMT", "version": "v1" }, { "created": "Wed, 19 Oct 2016 21:40:49 GMT", "version": "v2" } ]
2016-11-23
[ [ "Arnold", "Peter", "" ], [ "Chang", "Han-Chih", "" ], [ "Iqbal", "Shahin", "" ] ]
The splitting processes of bremsstrahlung and pair production in a medium are coherent over large distances in the very high energy limit, which leads to a suppression known as the Landau-Pomeranchuk-Migdal (LPM) effect. Of recent interest is the case when the coherence lengths of two consecutive splitting processes ov...
hep-ph/9907226
Thorsten Feldmann
Th. Feldmann (Univ. Wuppertal)
Phenomenology of eta-gamma and eta'-gamma transition form factors at large momentum transfer
6 pages + 4 figures (using espcrc2.sty, feynmp.sty); Talk presented at conference PHOTON'99, Freiburg, May 1999
Nucl.Phys.Proc.Suppl. 82 (2000) 331-336
10.1016/S0920-5632(00)00174-2
WUB 99-17
hep-ph
null
I discuss the progress in our theoretical understanding of the eta-gamma and eta'-gamma transition form factors, including the recent data from CLEO and L3 at large momentum transfer, Q^2. The experimental data above Q^2=1 GeV^2 can be well described by the hard scattering approach if the distribution amplitudes for ...
[ { "created": "Mon, 5 Jul 1999 09:33:46 GMT", "version": "v1" } ]
2009-10-31
[ [ "Feldmann", "Th.", "", "Univ. Wuppertal" ] ]
I discuss the progress in our theoretical understanding of the eta-gamma and eta'-gamma transition form factors, including the recent data from CLEO and L3 at large momentum transfer, Q^2. The experimental data above Q^2=1 GeV^2 can be well described by the hard scattering approach if the distribution amplitudes for et...
2212.06569
Rajeev Singh
Rajeev Singh
Collective dynamics of polarized spin-half fermions in relativistic heavy-ion collisions
IJMPA version
International Journal of Modern Physics A Vol. 38, No. 20, 2330011 (2023)
10.1142/S0217751X23300119
INT-PUB-23-033
hep-ph nucl-th
http://creativecommons.org/licenses/by/4.0/
Relativistic hydrodynamics has been quite successful in describing the properties of strongly-interacting matter produced in heavy-ion collision experiments. Recently, there has been a significant advancement in this field to explain the spin polarization of hadrons emitted in these processes. Although current models...
[ { "created": "Sat, 10 Dec 2022 02:27:51 GMT", "version": "v1" }, { "created": "Sun, 1 Oct 2023 17:00:13 GMT", "version": "v2" } ]
2023-10-03
[ [ "Singh", "Rajeev", "" ] ]
Relativistic hydrodynamics has been quite successful in describing the properties of strongly-interacting matter produced in heavy-ion collision experiments. Recently, there has been a significant advancement in this field to explain the spin polarization of hadrons emitted in these processes. Although current models h...
1401.3311
Mikhail Zubkov Dr
M.A. Zubkov
Strong dynamics behind the formation of the $125$ GeV Higgs boson
Accepted for publication in Phys.Rev. D
Phys. Rev. D 89 (2014), 075012
10.1103/PhysRevD.89.075012
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the scenario, in which the new strong dynamics is responsible for the formation of the $125$ GeV Higgs boson. The Higgs boson appears as composed of all known quarks and leptons of the Standard Model. The description of the mentioned strong dynamics is given using the $\zeta$ - regularization. It allows t...
[ { "created": "Tue, 14 Jan 2014 19:58:30 GMT", "version": "v1" }, { "created": "Mon, 10 Mar 2014 04:57:19 GMT", "version": "v2" }, { "created": "Mon, 17 Mar 2014 05:08:38 GMT", "version": "v3" }, { "created": "Thu, 20 Mar 2014 22:40:57 GMT", "version": "v4" } ]
2014-04-30
[ [ "Zubkov", "M. A.", "" ] ]
We consider the scenario, in which the new strong dynamics is responsible for the formation of the $125$ GeV Higgs boson. The Higgs boson appears as composed of all known quarks and leptons of the Standard Model. The description of the mentioned strong dynamics is given using the $\zeta$ - regularization. It allows to ...
1910.05225
Jos\'e Francisco Zurita
Xabier Cid Vidal, Yuhsin Tsai, Jose Zurita
Identifying Exclusive Displaced Hadronic Signatures in the Forward Region of the LHC
18 pages, 6 figures
null
null
TTP19-031
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The LHCb detector provides accurate vertex reconstruction and hadronic particle identification, which make the experiment an ideal place to look for light long-lived particles (LLP) decaying into Standard Model (SM) hadrons. In contrast with the typical search strategy relying on energetic jets and a high multiplicit...
[ { "created": "Fri, 11 Oct 2019 14:48:59 GMT", "version": "v1" } ]
2019-10-14
[ [ "Vidal", "Xabier Cid", "" ], [ "Tsai", "Yuhsin", "" ], [ "Zurita", "Jose", "" ] ]
The LHCb detector provides accurate vertex reconstruction and hadronic particle identification, which make the experiment an ideal place to look for light long-lived particles (LLP) decaying into Standard Model (SM) hadrons. In contrast with the typical search strategy relying on energetic jets and a high multiplicity ...
2210.07358
Ezequiel Alvarez
Ezequiel Alvarez (ICAS, Argentina)
Bayesian inference to study a signal with two or more decaying particles in a non-resonant background
16 pages, 8 figures. Important additions: Two new sections, one to compute the Bayesian predictive check, and the other to infer in a controlled toy model. Also additions to the linked Github repo, and other minor changes in the text. Results and reasoning remain unchanged
null
null
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
We study the application of a Bayesian method to extract relevant information from data for the case of a signal consisting of two or more decaying particles and its background. The method takes advantage of the dependence that exists in the distributions of the decaying products at the event-by-event level and proce...
[ { "created": "Thu, 13 Oct 2022 21:12:00 GMT", "version": "v1" }, { "created": "Sun, 4 Jun 2023 12:16:45 GMT", "version": "v2" } ]
2023-06-06
[ [ "Alvarez", "Ezequiel", "", "ICAS, Argentina" ] ]
We study the application of a Bayesian method to extract relevant information from data for the case of a signal consisting of two or more decaying particles and its background. The method takes advantage of the dependence that exists in the distributions of the decaying products at the event-by-event level and process...
hep-ph/9805366
Jose Wudka
G. Sanchez-Colon and J.Wudka
Effective operator contributions to the oblique parameters
13 pages, RevTeX
Phys.Lett.B432:383-389,1998
10.1016/S0370-2693(98)00682-0
UCRHEP-T229
hep-ph
null
We present a model and process independent study of the contributions from non-Standard Model physics to the oblique parameters S, T and U. We show that within an effective lagrangian parameterization the expressions for the oblique parameters in terms of observables are consistent, while those in terms of the vector...
[ { "created": "Mon, 18 May 1998 20:39:43 GMT", "version": "v1" } ]
2011-07-19
[ [ "Sanchez-Colon", "G.", "" ], [ "Wudka", "J.", "" ] ]
We present a model and process independent study of the contributions from non-Standard Model physics to the oblique parameters S, T and U. We show that within an effective lagrangian parameterization the expressions for the oblique parameters in terms of observables are consistent, while those in terms of the vector-b...
hep-ph/9709459
Harold W. Fearing
Harold W. Fearing and Randy Lewis (TRIUMF), Nader Mobed (Regina), Stefan Scherer (Mainz)
Radiative and non radiative muon capture on the proton in heavy baryon chiral perturbation theory
Talk at the 15th Int. Conf. on Few-Body Problems in Physics, 22-26 July, 1997, Groningen, The Netherlands, to be published in the proceedings; 5 pages, LaTeX, using espcrc1.sty
Nucl.Phys. A631 (1998) 735c-739c
10.1016/S0375-9474(98)00101-8
TRIUMF report TRI-PP-97-30
hep-ph nucl-th
null
We have evaluated the amplitude for muon capture by a proton, mu + p --> n + nu, to O(p^3) within the context of heavy baryon chiral perturbation theory (HBChPT) using the new O(p^3) Lagrangian of Ecker and Mojzis (E&M). We obtain expressions for the standard muon capture form factors and determine three of the coeff...
[ { "created": "Thu, 25 Sep 1997 19:06:33 GMT", "version": "v1" } ]
2009-10-30
[ [ "Fearing", "Harold W.", "", "TRIUMF" ], [ "Lewis", "Randy", "", "TRIUMF" ], [ "Mobed", "Nader", "", "Regina" ], [ "Scherer", "Stefan", "", "Mainz" ] ]
We have evaluated the amplitude for muon capture by a proton, mu + p --> n + nu, to O(p^3) within the context of heavy baryon chiral perturbation theory (HBChPT) using the new O(p^3) Lagrangian of Ecker and Mojzis (E&M). We obtain expressions for the standard muon capture form factors and determine three of the coeffic...
hep-ph/9712401
Isi Dunietz
Isard Dunietz (Fermilab)
Clean CKM Information from Bd(t) -> D(*)+/- pi-/+
8 pages, revtex
Phys.Lett. B427 (1998) 179-182
10.1016/S0370-2693(98)00304-9
FERMILAB--PUB--97/384--T
hep-ph
null
It has been known for many years that the Bd(t) -> D(*)+/- {pi-/+, rho-/+, a1-/+} modes may involve observable CP violating effects. This note describes how to determine cleanly the Cabibbo-Kobayashi-Maskawa (CKM) phase phi = -2 beta - gamma = -pi + alpha - beta, even in the presence of possible final state interacti...
[ { "created": "Tue, 16 Dec 1997 20:58:19 GMT", "version": "v1" } ]
2009-10-30
[ [ "Dunietz", "Isard", "", "Fermilab" ] ]
It has been known for many years that the Bd(t) -> D(*)+/- {pi-/+, rho-/+, a1-/+} modes may involve observable CP violating effects. This note describes how to determine cleanly the Cabibbo-Kobayashi-Maskawa (CKM) phase phi = -2 beta - gamma = -pi + alpha - beta, even in the presence of possible final state interaction...