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hep-ph/9508259
Christophe Royon
H. Navelet, R. Peschanski, Ch. Royon
Deep-Inelastic Onium Scattering
10 pages, 2 Postscript figures
Phys.Lett.B366:329-336,1996
10.1016/0370-2693(95)01360-1
DAPNIA/SPP 95-15, SPhT-T95-090
hep-ph
null
Using the colour dipole approach of the QCD perturbative (BFKL) Pomeron exchange in onium-onium scattering, we compute the cross section for small but hierarchically different onium sizes. A specific term dependent on the size-ratio is generated. In deep inelastic onium scattering it appears as a scaling violation co...
[ { "created": "Tue, 8 Aug 1995 11:31:15 GMT", "version": "v1" } ]
2008-11-26
[ [ "Navelet", "H.", "" ], [ "Peschanski", "R.", "" ], [ "Royon", "Ch.", "" ] ]
Using the colour dipole approach of the QCD perturbative (BFKL) Pomeron exchange in onium-onium scattering, we compute the cross section for small but hierarchically different onium sizes. A specific term dependent on the size-ratio is generated. In deep inelastic onium scattering it appears as a scaling violation cont...
1101.0481
Zhi-Qiang Shi
Zhi-Qiang Shi
Analytical Study of the Spin Projection Operator
7 pages
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present an analytical study of the spin projection operator of the spin state and the helicity state. It is pointed out emphatically that the former is Lorentz covariant, while the latter is a nonrelativistic two-component operator. In the special case of $\bm p=p_z$, the helicity state and the spin state are form...
[ { "created": "Mon, 3 Jan 2011 10:23:36 GMT", "version": "v1" }, { "created": "Sun, 25 Aug 2013 14:09:08 GMT", "version": "v2" } ]
2013-08-27
[ [ "Shi", "Zhi-Qiang", "" ] ]
We present an analytical study of the spin projection operator of the spin state and the helicity state. It is pointed out emphatically that the former is Lorentz covariant, while the latter is a nonrelativistic two-component operator. In the special case of $\bm p=p_z$, the helicity state and the spin state are formal...
hep-ph/9811521
Jorge Eduardo Cieza Montalvo
J. E. Cieza Montalvo and P. P. de Queiroz Filho
Production of a Single and a Pair of Heavy-Exotic-Leptons Through the pp Collisions
21 pages, plain LaTex, 9 eps figs
null
null
DFNAE-IF/UERJ-98/05
hep-ph
null
We investigate the production and signatures of a single, pair of heavy-exotic leptons via the electron-positron induced process and a pair of heavy exotic leptons via the Drell-Yan process at the CERN Large Hadron Collider (LHC). We show that the cross-section for the case of the production of heavy pair exotic lept...
[ { "created": "Mon, 30 Nov 1998 20:44:59 GMT", "version": "v1" } ]
2007-05-23
[ [ "Montalvo", "J. E. Cieza", "" ], [ "Filho", "P. P. de Queiroz", "" ] ]
We investigate the production and signatures of a single, pair of heavy-exotic leptons via the electron-positron induced process and a pair of heavy exotic leptons via the Drell-Yan process at the CERN Large Hadron Collider (LHC). We show that the cross-section for the case of the production of heavy pair exotic lepton...
1712.05926
Howard E. Haber
Howard E. Haber and Laurel Stephenson Haskins
Supersymmetric Theory and Models
Lecture notes, TASI 2016. 144 pages, all known typographical errors corrected. An improved version of eq. (8.58) is provided
in Proceedings of TASI 2016, Rouven Essig and Ian Low, editors (World Scientific, Singapore, 2018) pp. 355--499
10.1142/9789813233348_0006
SCIPP 17/11
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In these introductory lectures, we review the theoretical tools used in constructing supersymmetric field theories and their application to physical models. We first introduce the technology of two-component spinors, which is convenient for describing spin-$1/2$ fermions. After motivating why a theory of nature may b...
[ { "created": "Sat, 16 Dec 2017 09:40:03 GMT", "version": "v1" }, { "created": "Tue, 9 Jan 2018 23:36:08 GMT", "version": "v2" }, { "created": "Fri, 4 May 2018 08:38:30 GMT", "version": "v3" }, { "created": "Tue, 27 Nov 2018 18:16:22 GMT", "version": "v4" }, { "cre...
2022-05-20
[ [ "Haber", "Howard E.", "" ], [ "Haskins", "Laurel Stephenson", "" ] ]
In these introductory lectures, we review the theoretical tools used in constructing supersymmetric field theories and their application to physical models. We first introduce the technology of two-component spinors, which is convenient for describing spin-$1/2$ fermions. After motivating why a theory of nature may be ...
1508.00402
Marco Radici
Alessandro Bacchetta, Miguel G. Echevarria, Piet J.G. Mulders, Marco Radici, Andrea Signori
Effects of TMD evolution and partonic flavor on $e^+e^-$ annihilation into hadrons
33 pages, 10 composite figures, JHEP style file
null
10.1007/JHEP11(2015)076
NIKHEF preprint number 2014-035
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the transverse momentum dependence in the production of two back-to-back hadrons in electron-positron annihilations at the medium/large energy scales of BES-III and BELLE experiments. We use the parameters of the transverse-momentum-dependent (TMD) fragmentation functions that were recently extracted fro...
[ { "created": "Mon, 3 Aug 2015 12:49:24 GMT", "version": "v1" } ]
2016-01-20
[ [ "Bacchetta", "Alessandro", "" ], [ "Echevarria", "Miguel G.", "" ], [ "Mulders", "Piet J. G.", "" ], [ "Radici", "Marco", "" ], [ "Signori", "Andrea", "" ] ]
We calculate the transverse momentum dependence in the production of two back-to-back hadrons in electron-positron annihilations at the medium/large energy scales of BES-III and BELLE experiments. We use the parameters of the transverse-momentum-dependent (TMD) fragmentation functions that were recently extracted from ...
1408.6994
Vladimir Kuksa
Vladimir Kuksa
Complex mass definition and the concept of continuous mass
10 pages
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Propagators of unstable particles are considered in the spectral representation which naturally follows from the concept of continuous mass. The spectral functions are found with the help of the most general formal and physical assumptions. Dressed propagators of unstable scalar, vector, and spinor fields are derived...
[ { "created": "Fri, 29 Aug 2014 12:21:09 GMT", "version": "v1" } ]
2014-09-01
[ [ "Kuksa", "Vladimir", "" ] ]
Propagators of unstable particles are considered in the spectral representation which naturally follows from the concept of continuous mass. The spectral functions are found with the help of the most general formal and physical assumptions. Dressed propagators of unstable scalar, vector, and spinor fields are derived i...
hep-ph/0607342
Giovanni Salm\`e
J. P. B. C. de Melo, T. Frederico, E. Pace, S. Pisano, G. Salme'
Electromagnetic Hadron Form Factors and Higher Fock Components
8 pages, 6 figs, espcrc1.sty included. Proceedings of Fifth International Conference on Perspectives In Hadronic Physics, ICTP, May 22-26, 2006
Nucl.Phys.A782:69-76,2007
10.1016/j.nuclphysa.2006.10.027
null
hep-ph
null
Investigation of the spacelike and timelike electromagnetic form factors of hadrons, within a relativistic microscopical model characterized by a small set of hypothesis, could shed light on the components of hadron states beyond the valence one. Our relativistic approach has been successfully applied first to the pi...
[ { "created": "Mon, 31 Jul 2006 12:41:42 GMT", "version": "v1" } ]
2008-11-26
[ [ "de Melo", "J. P. B. C.", "" ], [ "Frederico", "T.", "" ], [ "Pace", "E.", "" ], [ "Pisano", "S.", "" ], [ "Salme'", "G.", "" ] ]
Investigation of the spacelike and timelike electromagnetic form factors of hadrons, within a relativistic microscopical model characterized by a small set of hypothesis, could shed light on the components of hadron states beyond the valence one. Our relativistic approach has been successfully applied first to the pion...
1810.08479
Yicong Sui
Jack H. Collins, P. S. Bhupal Dev, Yicong Sui
R-parity Violating Supersymmetric Explanation of the Anomalous Events at ANITA
8 pages, 4 figures
Phys. Rev. D 99, 043009 (2019)
10.1103/PhysRevD.99.043009
null
hep-ph astro-ph.CO astro-ph.HE hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The ANITA balloon experiment has observed two EeV-energy, upgoing events originating from well below the horizon. This is puzzling, because (i) no Standard Model (SM) particle is expected to survive passage through Earth at such energies and incident angles, and (ii) no such events were reported by IceCube. In this p...
[ { "created": "Fri, 19 Oct 2018 13:08:06 GMT", "version": "v1" }, { "created": "Fri, 11 Jan 2019 17:07:07 GMT", "version": "v2" } ]
2019-02-27
[ [ "Collins", "Jack H.", "" ], [ "Dev", "P. S. Bhupal", "" ], [ "Sui", "Yicong", "" ] ]
The ANITA balloon experiment has observed two EeV-energy, upgoing events originating from well below the horizon. This is puzzling, because (i) no Standard Model (SM) particle is expected to survive passage through Earth at such energies and incident angles, and (ii) no such events were reported by IceCube. In this pap...
hep-ph/9507233
Slava Ilyin
Ilya F. Ginzburg
Physical Program for Photon Colliders
16 pages, two figures (in PS format) are stored in the file `figs.uu' prepared by standard script `uufiles' (see Comments in the beginning of this file); Talk given at 10 Workshop on Photon--Photon Collisions, Sheffield, April 1995
null
null
IM SO RAN Preprint -95 -1/200
hep-ph
null
The physical program for the photon linear colliders (PLC) is discussed. We consider the problems in electroweak theory, hadron physics and QCD, new particles and interactions. We arrange this program for the main stages of PLC, which are the parts of an entire program for linear colliders. Some important unsolved pr...
[ { "created": "Tue, 4 Jul 1995 13:33:41 GMT", "version": "v1" } ]
2007-05-23
[ [ "Ginzburg", "Ilya F.", "" ] ]
The physical program for the photon linear colliders (PLC) is discussed. We consider the problems in electroweak theory, hadron physics and QCD, new particles and interactions. We arrange this program for the main stages of PLC, which are the parts of an entire program for linear colliders. Some important unsolved prob...
hep-ph/9502292
Sucher
J. Sucher
CONFINEMENT IN RELATIVISTIC POTENTIAL MODELS
LaTeX, 4 pages
Phys.Rev. D51 (1995) 5965-5966
10.1103/PhysRevD.51.5965
null
hep-ph
null
In relativistic potential models of quarkonia based on a Dirac-type of equation with a local potential there is a sharp distinction between a linear potential V which is vector-like and one which is scalar-like: There are normalizable solutions for a scalar-like V but not for a vector-like V. It is pointed out that i...
[ { "created": "Mon, 13 Feb 1995 23:15:20 GMT", "version": "v1" } ]
2016-09-01
[ [ "Sucher", "J.", "" ] ]
In relativistic potential models of quarkonia based on a Dirac-type of equation with a local potential there is a sharp distinction between a linear potential V which is vector-like and one which is scalar-like: There are normalizable solutions for a scalar-like V but not for a vector-like V. It is pointed out that if ...
1806.06783
Heikki M\"antysaari
Heikki M\"antysaari and Bj\"orn Schenke
Confronting impact parameter dependent JIMWLK evolution with HERA data
22 pages, 27 figures
Phys. Rev. D 98, 034013 (2018)
10.1103/PhysRevD.98.034013
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The small-$x$ evolution of protons is determined from numerical solutions of the JIMWLK equations, starting from an initial condition at moderate $x$ for a finite size proton. The resulting dipole amplitude is used to calculate the total reduced cross section $\sigma_r$ and charm reduced cross section $\sigma_{rc}$, ...
[ { "created": "Mon, 18 Jun 2018 15:46:57 GMT", "version": "v1" } ]
2018-08-22
[ [ "Mäntysaari", "Heikki", "" ], [ "Schenke", "Björn", "" ] ]
The small-$x$ evolution of protons is determined from numerical solutions of the JIMWLK equations, starting from an initial condition at moderate $x$ for a finite size proton. The resulting dipole amplitude is used to calculate the total reduced cross section $\sigma_r$ and charm reduced cross section $\sigma_{rc}$, as...
hep-ph/0609233
Donie O'Brien
D. S. O'Brien and N. H. Buttimore
Antiproton polarization induced by lepton interactions
Presented at Advanced Studies Institute: Symmetries and Spin (PRAHA SPIN 2006), Prague, Czech Republic, 19 - 26 July 2006. Submitted to Czech. J. Phys. 10 pages
Czech.J.Phys.56:F219-F228,2006
null
null
hep-ph
null
We present expressions for electromagnetic helicity amplitudes and spin observables for any elastic spin 1/2 - spin 1/2 scattering to first order in QED. In particular all electromagnetic helicity amplitudes and spin observables for elastic antiproton-electron and antiproton-proton scattering via single t-channel pho...
[ { "created": "Fri, 22 Sep 2006 11:22:19 GMT", "version": "v1" } ]
2008-11-26
[ [ "O'Brien", "D. S.", "" ], [ "Buttimore", "N. H.", "" ] ]
We present expressions for electromagnetic helicity amplitudes and spin observables for any elastic spin 1/2 - spin 1/2 scattering to first order in QED. In particular all electromagnetic helicity amplitudes and spin observables for elastic antiproton-electron and antiproton-proton scattering via single t-channel photo...
0706.0302
Shun Zhou
Shun Zhou
Neutrino Decays and Neutrino Electron Elastic Scattering in Unparticle Physics
10 pages including 2 PS figures; v2: an error removed and the text rewritten; v3: minor changes, accepted for publication in Phys. Lett. B
Phys.Lett.B659:336-340,2008
10.1016/j.physletb.2007.10.081
null
hep-ph astro-ph hep-th
null
Following Georgi's unparticle scheme, we examine the effective couplings between neutrinos and unparticle operators. As an immediate consequence, neutrinos become unstable and can decay into the unparticle stuff. Assuming the dimension transmutation scale is around $\Lambda^{}_{\cal U} \sim 1 ~{\rm TeV}$, we implemen...
[ { "created": "Sun, 3 Jun 2007 06:09:15 GMT", "version": "v1" }, { "created": "Sun, 15 Jul 2007 09:31:41 GMT", "version": "v2" }, { "created": "Tue, 30 Oct 2007 02:58:49 GMT", "version": "v3" } ]
2008-11-26
[ [ "Zhou", "Shun", "" ] ]
Following Georgi's unparticle scheme, we examine the effective couplings between neutrinos and unparticle operators. As an immediate consequence, neutrinos become unstable and can decay into the unparticle stuff. Assuming the dimension transmutation scale is around $\Lambda^{}_{\cal U} \sim 1 ~{\rm TeV}$, we implement ...
hep-ph/9306316
null
R. Arnowitt and Pran Nath
Supergravity Grand Unification, Proton Decay and Cosmological Constraints
18 Pages, 10 figures avaliable upon request, CTP-TAMU-23/93, NUB-TH-3062/92, SSCL-Preprint-229
null
null
null
hep-ph
null
Properties and experimental predictions of a broad class of supergravity grand unified models possessing an $SU(5)$-type proton decay and $R$ parity are described. Models of this type can be described in terms of four parameters at the Gut scale in addition to those of the Standard Model i.e. $m_o$ (universal scalar ...
[ { "created": "Fri, 25 Jun 1993 20:58:30 GMT", "version": "v1" } ]
2007-05-23
[ [ "Arnowitt", "R.", "" ], [ "Nath", "Pran", "" ] ]
Properties and experimental predictions of a broad class of supergravity grand unified models possessing an $SU(5)$-type proton decay and $R$ parity are described. Models of this type can be described in terms of four parameters at the Gut scale in addition to those of the Standard Model i.e. $m_o$ (universal scalar ma...
hep-ph/9409343
Wolfgang Bluemel
Wolfgang Bl"umel and Ulrich Heinz
Pion Multiplicity Distribution in Proton-Antiproton Annihilation at Rest
13pages, TPR-94-30
Z.Phys.C67:281-286,1995
10.1007/BF01571289
null
hep-ph
null
The pion multiplicity distribution is widely believed to reflect the statistical aspects of $\bar{p}p$ annihilation at rest. We try to reproduce it in a grand canonical picture with explicit conservation of electric charge, isospin, total angular momentum, and the parity quantum numbers $P$, $C$, and $G$ via the proj...
[ { "created": "Fri, 16 Sep 1994 13:07:22 GMT", "version": "v1" } ]
2009-10-09
[ [ "Bl\"umel", "Wolfgang", "" ], [ "Heinz", "Ulrich", "" ] ]
The pion multiplicity distribution is widely believed to reflect the statistical aspects of $\bar{p}p$ annihilation at rest. We try to reproduce it in a grand canonical picture with explicit conservation of electric charge, isospin, total angular momentum, and the parity quantum numbers $P$, $C$, and $G$ via the projec...
1312.0454
Stefan E. M\"uller
H. Czy\.z, S. Eidelman, G. V. Fedotovich, A. Korobov, S. E. M\"uller (ed.), A. Nyffeler, P. Roig, O. Shekhovtsova, T. Teubner, G. Venanzoni (ed.)
Mini-Proceedings of the 14th meeting of the Working Group on Rad. Corrections and MC Generators for Low Energies
20 pages, 7 contributions. Editors: S. E. Mueller and G. Venanzoni
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The mini-proceedings of the 14th Meeting of the "Working Group on Rad. Corrections and MC Generators for Low Energies" held in Frascati on September 13, 2013, as a satellite meeting of the PHIPSI13 conference in Rome, are presented. These meetings, started in 2006, have as aim to bring together experimentalists and t...
[ { "created": "Mon, 2 Dec 2013 13:46:50 GMT", "version": "v1" } ]
2013-12-03
[ [ "Czyż", "H.", "", "ed." ], [ "Eidelman", "S.", "", "ed." ], [ "Fedotovich", "G. V.", "", "ed." ], [ "Korobov", "A.", "", "ed." ], [ "Müller", "S. E.", "", "ed." ], [ "Nyffeler", "A.", "", "ed." ],...
The mini-proceedings of the 14th Meeting of the "Working Group on Rad. Corrections and MC Generators for Low Energies" held in Frascati on September 13, 2013, as a satellite meeting of the PHIPSI13 conference in Rome, are presented. These meetings, started in 2006, have as aim to bring together experimentalists and the...
hep-ph/9510269
Z. Hioki
Zenr\=o Hioki
EW Precision Analysis and the Higgs Mass
15 pages, latex, Invited Talk at the second German--Polish Symposium ``New Ideas in the Theory of Fundamental Interactions'', Zakopane, Poland, September 11-15, 1995 (to appear in the Proceedings)
Acta Phys.Polon. B27 (1996) 2573-2582
null
TOKUSHIMA 95-04
hep-ph
null
Two topics on the standard electroweak theory are discussed based on its remarkable success in precision analyses. One is a test of structure of the radiative corrections to the weak-boson masses as a further precision analysis. The other is an indirect Higgs-boson search through the radiative corrections to the vari...
[ { "created": "Wed, 11 Oct 1995 05:30:14 GMT", "version": "v1" } ]
2007-05-23
[ [ "Hioki", "Zenrō", "" ] ]
Two topics on the standard electroweak theory are discussed based on its remarkable success in precision analyses. One is a test of structure of the radiative corrections to the weak-boson masses as a further precision analysis. The other is an indirect Higgs-boson search through the radiative corrections to the variou...
0805.4751
Jian-Xiong Wang
Bin Gong, Xue Qian Li and Jian-Xiong Wang
QCD corrections to J/psi production via color octet states at Tevatron and LHC
Erratum to the published paper will appear in PLB. We correct an error in which the Tevatron data of p_t distribution for inclusive J/psi production was wrongly used as that for prompt production. Now all the Figs are redrawn with the newly fitted matrix elements for color-octet state and all the qualitative co...
Phys.Lett.B673:197-200,2009; Erratum-ibid.693:612-613,2010
10.1016/j.physletb.2009.02.026 10.1016/j.physletb.2010.09.031
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The remarkable discrepancy between theory and data on the p_t distribution of J/psi polarization in the process pp -> J/psi+X has been standing as a puzzle for a long time. Our early work indicates that if only considering the color-singlet state, NLO corrections may drastically change the distribution, but are not s...
[ { "created": "Fri, 30 May 2008 13:16:06 GMT", "version": "v1" }, { "created": "Tue, 21 Sep 2010 14:04:12 GMT", "version": "v2" } ]
2014-11-18
[ [ "Gong", "Bin", "" ], [ "Li", "Xue Qian", "" ], [ "Wang", "Jian-Xiong", "" ] ]
The remarkable discrepancy between theory and data on the p_t distribution of J/psi polarization in the process pp -> J/psi+X has been standing as a puzzle for a long time. Our early work indicates that if only considering the color-singlet state, NLO corrections may drastically change the distribution, but are not suf...
0901.0639
Oleg Ruchayskiy
Ignatios Antoniadis, Alexey Boyarsky, Sam Espahbodi, Oleg Ruchayskiy, James D. Wells
Anomaly driven signatures of new invisible physics at the Large Hadron Collider
22 pages, 8 figures, latex
Nucl.Phys.B824:296-313,2010
10.1016/j.nuclphysb.2009.09.009
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Many extensions of the Standard Model (SM) predict new neutral vector bosons at energies accessible by the Large Hadron Collider (LHC). We study an extension of the SM with new chiral fermions subject to non-trivial anomaly cancellations. If the new fermions have SM charges, but are too heavy to be created at LHC, an...
[ { "created": "Tue, 6 Jan 2009 12:14:26 GMT", "version": "v1" } ]
2009-10-06
[ [ "Antoniadis", "Ignatios", "" ], [ "Boyarsky", "Alexey", "" ], [ "Espahbodi", "Sam", "" ], [ "Ruchayskiy", "Oleg", "" ], [ "Wells", "James D.", "" ] ]
Many extensions of the Standard Model (SM) predict new neutral vector bosons at energies accessible by the Large Hadron Collider (LHC). We study an extension of the SM with new chiral fermions subject to non-trivial anomaly cancellations. If the new fermions have SM charges, but are too heavy to be created at LHC, and ...
hep-ph/9601371
Jonathan Butterworth
J.M.Butterworth, J.R.Forshaw and M.H.Seymour
Multiparton Interactions in Photoproduction at HERA
21 pages, 8 figures included
Z.Phys.C72:637-646,1996
10.1007/s002880050286
CERN-TH/95-82, MC-TH-96/05, UCL/HEP 96-02
hep-ph
null
The high energy photoproduction of jets is being observed at the ep collider, HERA. It may be that the HERA centre-of-mass energy is sufficiently large that the production of more than one pair of jets per ep collision becomes possible, owing to the large number density of the probed gluons. We construct a Monte Carl...
[ { "created": "Tue, 30 Jan 1996 11:27:53 GMT", "version": "v1" } ]
2008-11-26
[ [ "Butterworth", "J. M.", "" ], [ "Forshaw", "J. R.", "" ], [ "Seymour", "M. H.", "" ] ]
The high energy photoproduction of jets is being observed at the ep collider, HERA. It may be that the HERA centre-of-mass energy is sufficiently large that the production of more than one pair of jets per ep collision becomes possible, owing to the large number density of the probed gluons. We construct a Monte Carlo ...
1107.1964
J. Guilherme Milhano
J. Casalderrey-Solana, J. G. Milhano and U. Wiedemann
Jet quenching via jet collimation
4 pages, 2 figures; Proceedings of the "Quark Matter 2011" conference
null
10.1088/0954-3899/38/12/124086
CERN-PH-TH-2011-168
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The strong modifications of dijet properties in heavy ion collisions measured by ATLAS and CMS provide important constraints on the dynamical mechanisms underlying jet quenching. In this work, we show that the transport of soft gluons away from the jet cone - jet collimation - can account for the observed dijet asymm...
[ { "created": "Mon, 11 Jul 2011 08:43:21 GMT", "version": "v1" } ]
2015-05-28
[ [ "Casalderrey-Solana", "J.", "" ], [ "Milhano", "J. G.", "" ], [ "Wiedemann", "U.", "" ] ]
The strong modifications of dijet properties in heavy ion collisions measured by ATLAS and CMS provide important constraints on the dynamical mechanisms underlying jet quenching. In this work, we show that the transport of soft gluons away from the jet cone - jet collimation - can account for the observed dijet asymmet...
1607.06827
Michael P\'erez
Dipankar Das, M. L. L\'opez-Ib\'a\~nez, M. Jay P\'erez, Oscar Vives
Effective Theories of Flavor and the Non-Universal MSSM
22 pages, 11 figures
Phys. Rev. D 95, 035001 (2017)
10.1103/PhysRevD.95.035001
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Flavor symmetries \`{a} la Froggatt-Nielsen~(FN) provide a compelling way to explain the hierarchies of fermionic masses and mixing angles in the Yukawa sector. In Supersymmetric~(SUSY) extensions of the Standard Model where the mediation of SUSY breaking occurs at scales larger than the breaking of flavor, this symm...
[ { "created": "Fri, 22 Jul 2016 20:11:11 GMT", "version": "v1" }, { "created": "Tue, 7 Feb 2017 19:20:33 GMT", "version": "v2" } ]
2017-02-15
[ [ "Das", "Dipankar", "" ], [ "López-Ibáñez", "M. L.", "" ], [ "Pérez", "M. Jay", "" ], [ "Vives", "Oscar", "" ] ]
Flavor symmetries \`{a} la Froggatt-Nielsen~(FN) provide a compelling way to explain the hierarchies of fermionic masses and mixing angles in the Yukawa sector. In Supersymmetric~(SUSY) extensions of the Standard Model where the mediation of SUSY breaking occurs at scales larger than the breaking of flavor, this symmet...
hep-ph/0111175
Tsou Sheung Tsun
J Bordes (Valencia), HM Chan (Rutherford Appleton Lab) and ST Tsou (Oxford)
Kinematical Lepton Transmutation in $e^+ e^-$ Collision and Vector Boson Decay
32 pages, Latex; this paper supersedes and subsumes the material of hep-ph/0012119 and hep-ph/0103205
null
null
null
hep-ph
null
The change in orientation in generation space (rotation) of the fermion mass matrix with changing scales can lead to flavour-violations through just the kinematics of a non-diagonal mass matrix. Such effects for the reactions: $e^+ e^- \longrightarrow e^\pm \mu^\mp, e^\pm \tau^\mp, \mu^\pm \tau^\mp$, and for the deca...
[ { "created": "Wed, 14 Nov 2001 12:15:32 GMT", "version": "v1" } ]
2007-05-23
[ [ "Bordes", "J", "", "Valencia" ], [ "Chan", "HM", "", "Rutherford Appleton Lab" ], [ "Tsou", "ST", "", "Oxford" ] ]
The change in orientation in generation space (rotation) of the fermion mass matrix with changing scales can lead to flavour-violations through just the kinematics of a non-diagonal mass matrix. Such effects for the reactions: $e^+ e^- \longrightarrow e^\pm \mu^\mp, e^\pm \tau^\mp, \mu^\pm \tau^\mp$, and for the decays...
1903.10516
Debasish Borah
Debasish Borah, Arnab Dasgupta, Sin Kyu Kang
Two-component Dark Matter with co-genesis of Baryon Asymmetry of the Universe
29 pages, 9 figures, matches version accepted for publication in Phys. Rev. D
Phys. Rev. D 100, 103502 (2019)
10.1103/PhysRevD.100.103502
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the possibility of realising a two-component dark matter (DM) scenario where the two DM candidates differ from each other by virtue of their production mechanism in the early universe. One of the DM candidates is thermally generated in a way similar to the weakly interacting massive particle (WIMP) paradig...
[ { "created": "Mon, 25 Mar 2019 18:00:03 GMT", "version": "v1" }, { "created": "Thu, 10 Oct 2019 08:38:50 GMT", "version": "v2" } ]
2019-11-13
[ [ "Borah", "Debasish", "" ], [ "Dasgupta", "Arnab", "" ], [ "Kang", "Sin Kyu", "" ] ]
We discuss the possibility of realising a two-component dark matter (DM) scenario where the two DM candidates differ from each other by virtue of their production mechanism in the early universe. One of the DM candidates is thermally generated in a way similar to the weakly interacting massive particle (WIMP) paradigm ...
hep-ph/0505109
Rom\'an Linares
Roman Linares, Hugo A. Morales-Tecotl and Omar Pedraza
Casimir effect in a six-dimensional vortex scenario
12 pages, references added, comparison with experimental data clarified. v4 published version
Phys.Lett. B633 (2006) 362-367
10.1016/j.physletb.2005.11.057
null
hep-ph
null
Recently Randjbar-Daemi and Shaposhnikov put forward a 4-dimensional effective QED coming from a Nielsen-Olesen vortex solution of the abelian Higgs model with fermions coupled to gravity in D=6. However, exploring possible physical consequences of such an effective QED was left open. In this letter we study the corr...
[ { "created": "Thu, 12 May 2005 18:55:52 GMT", "version": "v1" }, { "created": "Fri, 20 May 2005 20:56:20 GMT", "version": "v2" }, { "created": "Sun, 17 Jul 2005 01:50:16 GMT", "version": "v3" }, { "created": "Wed, 15 Feb 2006 22:43:53 GMT", "version": "v4" } ]
2009-11-11
[ [ "Linares", "Roman", "" ], [ "Morales-Tecotl", "Hugo A.", "" ], [ "Pedraza", "Omar", "" ] ]
Recently Randjbar-Daemi and Shaposhnikov put forward a 4-dimensional effective QED coming from a Nielsen-Olesen vortex solution of the abelian Higgs model with fermions coupled to gravity in D=6. However, exploring possible physical consequences of such an effective QED was left open. In this letter we study the corres...
1812.05103
Ahmed Ismail
Brian Batell, Ayres Freitas, Ahmed Ismail, David McKeen
Probing Light Dark Matter with a Hadrophilic Scalar Mediator
36 pages, 2 figures
Phys. Rev. D 100, 095020 (2019)
10.1103/PhysRevD.100.095020
PITT-PACC-1817
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the thermal cosmology and terrestrial and astrophysical phenomenology of a sub-GeV hadrophilic dark sector. The specific construction explored in this work features a Dirac fermion dark matter candidate interacting with a light scalar mediator that dominantly couples to the up-quark. The correct freeze...
[ { "created": "Wed, 12 Dec 2018 19:00:00 GMT", "version": "v1" } ]
2019-11-27
[ [ "Batell", "Brian", "" ], [ "Freitas", "Ayres", "" ], [ "Ismail", "Ahmed", "" ], [ "McKeen", "David", "" ] ]
We investigate the thermal cosmology and terrestrial and astrophysical phenomenology of a sub-GeV hadrophilic dark sector. The specific construction explored in this work features a Dirac fermion dark matter candidate interacting with a light scalar mediator that dominantly couples to the up-quark. The correct freeze-o...
hep-ph/0006161
Claudio Maekawa
C. M. Maekawa and U. van Kolck (Kellogg Radiation Laboratory of California Institute of Technology)
The anapole form factor of the nucleon
9 pages, 2 eps figures included by epsf.sty, minor changes in note added
Phys.Lett. B478 (2000) 73-78
10.1016/S0370-2693(00)00249-5
KRL MAP-265
hep-ph
null
The anapole form factor of the nucleon is calculated in chiral perturbation theory in leading order. To this order, the form factor originates from the pion cloud, and is proportional to the non-derivative parity-violating pion-nucleon coupling. The momentum dependence of the form factor - and in particular, its radi...
[ { "created": "Wed, 14 Jun 2000 23:46:21 GMT", "version": "v1" }, { "created": "Thu, 13 Jul 2000 00:42:42 GMT", "version": "v2" } ]
2009-10-31
[ [ "Maekawa", "C. M.", "", "Kellogg Radiation Laboratory of\n California Institute of Technology" ], [ "van Kolck", "U.", "", "Kellogg Radiation Laboratory of\n California Institute of Technology" ] ]
The anapole form factor of the nucleon is calculated in chiral perturbation theory in leading order. To this order, the form factor originates from the pion cloud, and is proportional to the non-derivative parity-violating pion-nucleon coupling. The momentum dependence of the form factor - and in particular, its radius...
hep-ph/0406007
Seungwon Baek
Seungwon Baek (KIAS)
A two-loop contribution to B_s --> mu^+ mu^- at large tan(beta) in the MSSM
12 pages, 7 figures, accepted for publication in Phys Lett B; references added
Phys.Lett. B595 (2004) 461-468
10.1016/j.physletb.2004.05.071
KIAS-P04023
hep-ph
null
We consider a two-loop contribution of Higgs-mediated penguin diagram to $B(B_s \to \mu^+\mu^-)$ at large $\tan\beta$ in the MSSM, motivated by a recently proposed two-loop magnetic penguin diagrams by Chen and Geng [1]. Typically the two-loop diagram is a $\alpha_s$ correction to the one-loop contributions. However ...
[ { "created": "Tue, 1 Jun 2004 06:12:11 GMT", "version": "v1" }, { "created": "Fri, 4 Jun 2004 04:36:26 GMT", "version": "v2" } ]
2010-04-05
[ [ "Baek", "Seungwon", "", "KIAS" ] ]
We consider a two-loop contribution of Higgs-mediated penguin diagram to $B(B_s \to \mu^+\mu^-)$ at large $\tan\beta$ in the MSSM, motivated by a recently proposed two-loop magnetic penguin diagrams by Chen and Geng [1]. Typically the two-loop diagram is a $\alpha_s$ correction to the one-loop contributions. However th...
1808.03249
Maria Manuela Saez
M. M. Saez, O. Civitarese, M. E. Mosquera
Neutrino induced reactions in core-collapse supernovae: effects on the electron fraction
null
International Journal of Modern Physics D. volume = {27}, number = {12}, pages = {1850116}, year = {2018}
10.1142/S021827181850116X
null
hep-ph astro-ph.SR nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Neutrino induced reactions are a basic ingredient in astrophysical processes like star evolution. The existence of neutrino oscillations affects the rate of nuclear electroweak decays which participates in the chain of events that determines the fate of the star. Among the processes of interest, the production of hea...
[ { "created": "Thu, 9 Aug 2018 17:32:20 GMT", "version": "v1" } ]
2018-09-10
[ [ "Saez", "M. M.", "" ], [ "Civitarese", "O.", "" ], [ "Mosquera", "M. E.", "" ] ]
Neutrino induced reactions are a basic ingredient in astrophysical processes like star evolution. The existence of neutrino oscillations affects the rate of nuclear electroweak decays which participates in the chain of events that determines the fate of the star. Among the processes of interest, the production of heavy...
2111.14286
Jayita Lahiri
Jayita Lahiri
Analyzing polarized boosted top from stop decay at high luminosity and high energy LHC
28 pages, 10 figures
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Measuring top polarization is extremely important in understanding any new physics that couples to top quark. Here, we take up the task of extracting polarization of top quark coming from TeV-scale stop decay at the upgraded high luminosity and high energy LHC. We focus on the scenario where the two tops from the sto...
[ { "created": "Mon, 29 Nov 2021 01:10:50 GMT", "version": "v1" } ]
2021-11-30
[ [ "Lahiri", "Jayita", "" ] ]
Measuring top polarization is extremely important in understanding any new physics that couples to top quark. Here, we take up the task of extracting polarization of top quark coming from TeV-scale stop decay at the upgraded high luminosity and high energy LHC. We focus on the scenario where the two tops from the stop ...
1409.4439
Alejandro Celis
Alejandro Celis, Vincenzo Cirigliano, Emilie Passemar
Disentangling new physics contributions in lepton flavour violating tau decays
7 pages, 8 figures and 1 table. Contribution to the Proceedings of the ICHEP 2014 Conference
null
null
IFIC/14-44
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The possibility to discriminate between different operators contributing to lepton flavour violating tau decays is discussed within an effective field theory framework. Correlations among decay rates in different channels as well as differential distributions in many-body decays are considered. Recent developments in...
[ { "created": "Mon, 15 Sep 2014 20:24:48 GMT", "version": "v1" } ]
2014-09-17
[ [ "Celis", "Alejandro", "" ], [ "Cirigliano", "Vincenzo", "" ], [ "Passemar", "Emilie", "" ] ]
The possibility to discriminate between different operators contributing to lepton flavour violating tau decays is discussed within an effective field theory framework. Correlations among decay rates in different channels as well as differential distributions in many-body decays are considered. Recent developments in t...
1206.0159
Daniel Seipt
T. Nousch, D. Seipt, B. Kampfer and A. I. Titov
Subthreshold pair production in short laser pulses
13 pages, 5 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The $e^+e^-$ pair production by a probe photon traversing a linearly polarized laser pulse is treated as generalized nonlinear Breit-Wheeler process. For short laser pulses with very few oscillations of the electromagnetic field we find below the perturbative weak-field threshold $\sqrt{s} = 2m$ a similar enhancement...
[ { "created": "Fri, 1 Jun 2012 11:51:05 GMT", "version": "v1" } ]
2012-06-04
[ [ "Nousch", "T.", "" ], [ "Seipt", "D.", "" ], [ "Kampfer", "B.", "" ], [ "Titov", "A. I.", "" ] ]
The $e^+e^-$ pair production by a probe photon traversing a linearly polarized laser pulse is treated as generalized nonlinear Breit-Wheeler process. For short laser pulses with very few oscillations of the electromagnetic field we find below the perturbative weak-field threshold $\sqrt{s} = 2m$ a similar enhancement o...
1507.06018
Jing Shu
Ligong Bian, Da Liu, Jing Shu
Low Scale Composite Higgs Model and 1.8 $\sim$ 2 TeV Diboson Excess
9 pages, 3 figures, 3 tables
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider a simple solution to explain the recent diboson excess observed by ATALS and CMS Collaborations in models with custodial symmetry $SU(2)_L \times SU(2)_R \rightarrow SU(2)_c$. The $SU(2)_L$ triplet vector boson $\rho$ with mass range of $1.8 \sim 2$ TeV would be produced through the Drell-Yan process with...
[ { "created": "Wed, 22 Jul 2015 00:18:21 GMT", "version": "v1" } ]
2015-07-23
[ [ "Bian", "Ligong", "" ], [ "Liu", "Da", "" ], [ "Shu", "Jing", "" ] ]
We consider a simple solution to explain the recent diboson excess observed by ATALS and CMS Collaborations in models with custodial symmetry $SU(2)_L \times SU(2)_R \rightarrow SU(2)_c$. The $SU(2)_L$ triplet vector boson $\rho$ with mass range of $1.8 \sim 2$ TeV would be produced through the Drell-Yan process with s...
hep-ph/9508402
null
K.C. Chou (CAS) and Y.L. Wu (OSU)
Low Energy Phenomena in a Model With Symmetry Group SUSY SO(10) X Delta (48) X U(1)
19 pages, RevTex, no Figures, to be published in Scientia Sinica
null
null
CAS-HEP-T-95-08/002, DOE-ER/01545-655
hep-ph
null
Fermion masses and mixing angles including that of neutrinos are studied in a model with symmetry group SUSY $SO(10)\times \Delta (48) \times U(1)$. Universality of Yukawa coupling of superfields is assumed. The resulting texture of mass matrices in the low energy region depends only on a single coupling constant and...
[ { "created": "Wed, 30 Aug 1995 14:50:50 GMT", "version": "v1" } ]
2007-05-23
[ [ "Chou", "K. C.", "", "CAS" ], [ "Wu", "Y. L.", "", "OSU" ] ]
Fermion masses and mixing angles including that of neutrinos are studied in a model with symmetry group SUSY $SO(10)\times \Delta (48) \times U(1)$. Universality of Yukawa coupling of superfields is assumed. The resulting texture of mass matrices in the low energy region depends only on a single coupling constant and V...
2404.10283
Juntaro Wada
Juntaro Wada
Majoron-Driven Leptogenesis in Gauged $U(1)_{L_{\mu}-L_{\tau}}$ Model
27 pages, 9 figures
null
null
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a novel leptogenesis scenario in the gauged $U(1)_{L_{\mu}-L_{\tau}}$ model. Achieving successful leptogenesis in the $U(1)_{L_{\mu}-L_{\tau}}$ symmetric phase is challenging due to the absence of a CP phase, caused by restriction from the gauge symmetry. To overcome this issue, we introduce an additional ...
[ { "created": "Tue, 16 Apr 2024 04:55:59 GMT", "version": "v1" } ]
2024-04-17
[ [ "Wada", "Juntaro", "" ] ]
We propose a novel leptogenesis scenario in the gauged $U(1)_{L_{\mu}-L_{\tau}}$ model. Achieving successful leptogenesis in the $U(1)_{L_{\mu}-L_{\tau}}$ symmetric phase is challenging due to the absence of a CP phase, caused by restriction from the gauge symmetry. To overcome this issue, we introduce an additional gl...
hep-ph/9510265
null
U. Baur (SUNY Buffalo)
Self-Couplings of Electroweak Bosons: Theoretical Aspects and Tests at Hadron Colliders
LaTeX file, uses wstwocl.sty (available from hep-ph archive), 5 pages, 2 embedded postscript figures submitted separately as tarred compressed file
null
null
UB-HET-95-04
hep-ph
null
The current theoretical understanding of anomalous gauge boson couplings is reviewed, and the direct measurement of these couplings in present and future hadron collider experiments is briefly discussed.
[ { "created": "Wed, 11 Oct 1995 00:36:53 GMT", "version": "v1" } ]
2007-05-23
[ [ "Baur", "U.", "", "SUNY Buffalo" ] ]
The current theoretical understanding of anomalous gauge boson couplings is reviewed, and the direct measurement of these couplings in present and future hadron collider experiments is briefly discussed.
1210.2848
Yuta Orikasa
Satoshi Iso, Yuta Orikasa
TeV Scale B-L model with a flat Higgs potential at the Planck scale -- in view of the hierarchy problem
18 pages, 5 figures; report number changed
null
10.1093/ptep/pts099
KEK-TH-1837; OU-HET 762/2012
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The recent discovery of the Higgs-like particle at around 126 GeV has given us a big hint towards the origin of the Higgs potential. Especially the running quartic coupling vanishes near the Planck scale, which indicates a possible link between the physics in the electroweak and the Planck scales. Motivated by this a...
[ { "created": "Wed, 10 Oct 2012 09:44:09 GMT", "version": "v1" }, { "created": "Fri, 21 Dec 2012 02:44:33 GMT", "version": "v2" }, { "created": "Tue, 26 May 2015 08:48:45 GMT", "version": "v3" } ]
2016-06-21
[ [ "Iso", "Satoshi", "" ], [ "Orikasa", "Yuta", "" ] ]
The recent discovery of the Higgs-like particle at around 126 GeV has given us a big hint towards the origin of the Higgs potential. Especially the running quartic coupling vanishes near the Planck scale, which indicates a possible link between the physics in the electroweak and the Planck scales. Motivated by this and...
hep-ph/0403146
Pedro Bicudo
P. Bicudo
The anti-decuplet candidate Xi--(1862) as a heptaquark with the overlap of two anti-kaons and a nucleon
6 pages, 2 figures, 1 table, RevTex4, corrected version, with a new section
Phys.Rev.D70:111504,2004
10.1103/PhysRevD.70.111504
null
hep-ph
null
I study the very recently discovered S=-2 resonance Xi--(1886) by the NA49 collaboration at the CERN SPS. This resonance was already predicted, with a mass close to 1.9 GeV, in a recent publication mostly dedicated to the S=1 resonance Theta+(1540). To confirm this recent prediction, I apply the same standard quark m...
[ { "created": "Sat, 13 Mar 2004 13:49:00 GMT", "version": "v1" }, { "created": "Thu, 29 Jul 2004 04:44:19 GMT", "version": "v2" } ]
2011-07-19
[ [ "Bicudo", "P.", "" ] ]
I study the very recently discovered S=-2 resonance Xi--(1886) by the NA49 collaboration at the CERN SPS. This resonance was already predicted, with a mass close to 1.9 GeV, in a recent publication mostly dedicated to the S=1 resonance Theta+(1540). To confirm this recent prediction, I apply the same standard quark mod...
2109.13729
Kim Maltman
Christopher L. James, Randy Lewis and Kim Maltman
A ChPT estimate of the strong-isospin-breaking contribution to the anomalous magnetic moment of the muon
20 pages, three figures
null
10.1103/PhysRevD.105.053010
null
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
First-principles lattice determinations of the Standard Model expectation for the leading order hadronic vacuum polarization contribution to the anomalous magnetic moment of the muon have become sufficiently precise that further improvement requires including strong and electromagnetic isospin-breaking effects. We pr...
[ { "created": "Tue, 28 Sep 2021 13:46:13 GMT", "version": "v1" } ]
2022-04-13
[ [ "James", "Christopher L.", "" ], [ "Lewis", "Randy", "" ], [ "Maltman", "Kim", "" ] ]
First-principles lattice determinations of the Standard Model expectation for the leading order hadronic vacuum polarization contribution to the anomalous magnetic moment of the muon have become sufficiently precise that further improvement requires including strong and electromagnetic isospin-breaking effects. We prov...
1911.06824
U. J. Salda\~na-Salazar
S. Centelles Chuli\'a, W. Rodejohann, U. J. Salda\~na-Salazar
Two-Higgs-Doublet Models with a Flavored $\mathbb{Z}_2$
12 pages, 3 figures; Eq.(48) fixed, references added, version accepted by PRD
Phys. Rev. D 101, 035013 (2020)
10.1103/PhysRevD.101.035013
IFIC/19-XXX
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Two Higgs-doublet models usually consider an ad-hoc $\mathbb{Z}_2$ discrete symmetry to avoid flavor changing neutral currents. We consider a new class of two Higgs-doublet models where $\mathbb{Z}_2$ is enlarged to the symmetry group ${\cal{F}}\rtimes \mathbb{Z}_2$, i.e. an inner semi-direct product of a discrete sy...
[ { "created": "Fri, 15 Nov 2019 19:00:02 GMT", "version": "v1" }, { "created": "Thu, 23 Jan 2020 11:57:22 GMT", "version": "v2" } ]
2020-02-19
[ [ "Chuliá", "S. Centelles", "" ], [ "Rodejohann", "W.", "" ], [ "Saldaña-Salazar", "U. J.", "" ] ]
Two Higgs-doublet models usually consider an ad-hoc $\mathbb{Z}_2$ discrete symmetry to avoid flavor changing neutral currents. We consider a new class of two Higgs-doublet models where $\mathbb{Z}_2$ is enlarged to the symmetry group ${\cal{F}}\rtimes \mathbb{Z}_2$, i.e. an inner semi-direct product of a discrete symm...
hep-ph/0205323
Jonathan L. Rosner
Michael Gronau and Jonathan L. Rosner
Convention-independent study of CP-violating asymmetries in $B \to \pi \pi$
14 pages, LaTeX, 2 figures, revised version submitted to Phys. Rev. D. Further references and text added
Phys.Rev.D66:053003,2002; Erratum-ibid.D66:119901,2002
10.1103/PhysRevD.66.053003 10.1103/PhysRevD.66.119901
TECHNION-PH-2002-21, EFI 02-81
hep-ph
null
CP-violating asymmetries in the decay $B^0(t)\to \pi^+ \pi^-$ are a potentially rich source of information about both strong and weak phases. In a previous treatment by the present authors use was made of an assumption about the relative magnitude of tree and penguin amplitudes contributing to this process. This assu...
[ { "created": "Wed, 29 May 2002 12:12:23 GMT", "version": "v1" }, { "created": "Tue, 4 Jun 2002 15:54:04 GMT", "version": "v2" }, { "created": "Mon, 17 Jun 2002 15:47:04 GMT", "version": "v3" } ]
2014-11-17
[ [ "Gronau", "Michael", "" ], [ "Rosner", "Jonathan L.", "" ] ]
CP-violating asymmetries in the decay $B^0(t)\to \pi^+ \pi^-$ are a potentially rich source of information about both strong and weak phases. In a previous treatment by the present authors use was made of an assumption about the relative magnitude of tree and penguin amplitudes contributing to this process. This assump...
2206.03841
Urko Reinosa
Duifje Maria van Egmond and Urko Reinosa
Signatures of the Yang-Mills deconfinement transition from the gluon two-point correlator
33 pages, 10 figures
null
null
null
hep-ph hep-lat hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We evaluate the longitudinal or (chromo-)electric Yang-Mills gluon propagator in the recently proposed center-symmetric Landau gauge at finite temperature [1]. To model the effect of the Gribov copies in the infrared, we use the Curci-Ferrari model which, in turn, allows us to rely on perturbative calculations. At on...
[ { "created": "Wed, 8 Jun 2022 12:34:52 GMT", "version": "v1" } ]
2022-06-09
[ [ "van Egmond", "Duifje Maria", "" ], [ "Reinosa", "Urko", "" ] ]
We evaluate the longitudinal or (chromo-)electric Yang-Mills gluon propagator in the recently proposed center-symmetric Landau gauge at finite temperature [1]. To model the effect of the Gribov copies in the infrared, we use the Curci-Ferrari model which, in turn, allows us to rely on perturbative calculations. At one-...
1408.5584
Zhong-Juan Yang
Zhong-Juan Yang, Xiao-Xia Zhao (Henan Polytech. U.)
The Production of $\Xi_{bb}$ at Photon Collider
6 pages,10 figures
null
10.1088/0256-307X/31/9/091301
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The inclusive production of the doubly heavy baryon $\Xi_{bb}$ is investigated at polarized and unpolar- ized photon collider. bb pair in both color triplet and sextet have been considered to transform into $\Xi_{bb}$. The results indicate that the contribution from color sextet is about 8% for $\Xi_{bb}$ production....
[ { "created": "Sun, 24 Aug 2014 09:13:15 GMT", "version": "v1" } ]
2015-06-22
[ [ "Yang", "Zhong-Juan", "", "Henan Polytech. U." ], [ "Zhao", "Xiao-Xia", "", "Henan Polytech. U." ] ]
The inclusive production of the doubly heavy baryon $\Xi_{bb}$ is investigated at polarized and unpolar- ized photon collider. bb pair in both color triplet and sextet have been considered to transform into $\Xi_{bb}$. The results indicate that the contribution from color sextet is about 8% for $\Xi_{bb}$ production. F...
2002.07184
Martin Hoferichter
Andreas Crivellin, Martin Hoferichter
Beta decays as sensitive probes of lepton flavor universality
7 pages, 2 figures; journal version
Phys. Rev. Lett. 125, 111801 (2020)
10.1103/PhysRevLett.125.111801
INT-PUB-20-005, PSI-PR-20-02, UZ-TH 05/20
hep-ph hep-ex hep-lat nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Nuclear $\beta$ decays as well as the decay of the neutron are well-established low-energy probes of physics beyond the Standard Model (SM). In particular, with the axial-vector coupling of the nucleon $g_A$ determined from lattice QCD, the comparison between experiment and SM prediction is commonly used to derive co...
[ { "created": "Mon, 17 Feb 2020 19:00:01 GMT", "version": "v1" }, { "created": "Thu, 10 Sep 2020 14:36:35 GMT", "version": "v2" } ]
2020-09-11
[ [ "Crivellin", "Andreas", "" ], [ "Hoferichter", "Martin", "" ] ]
Nuclear $\beta$ decays as well as the decay of the neutron are well-established low-energy probes of physics beyond the Standard Model (SM). In particular, with the axial-vector coupling of the nucleon $g_A$ determined from lattice QCD, the comparison between experiment and SM prediction is commonly used to derive cons...
1010.3759
Jonathan Carroll
J. D. Carroll
The Quark-Meson Coupling model as a description of dense matter
3 pages, 2 figures. Talk given at 12th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon (MENU 2010), Williamsburg, Virginia, 31 May -- 4 Jun 2010
null
10.1063/1.3647126
ADP-10-17/T13
hep-ph astro-ph.SR nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Quantum Hadrodynamics provides a useful framework for investigating dense matter, yet it breaks down easily when strangeness carrying baryons are introduced into the calculations, as the baryon effective masses become negative due to large meson field potentials. The Quark-Meson Coupling model overcomes this issue by...
[ { "created": "Mon, 18 Oct 2010 23:52:37 GMT", "version": "v1" } ]
2015-05-20
[ [ "Carroll", "J. D.", "" ] ]
Quantum Hadrodynamics provides a useful framework for investigating dense matter, yet it breaks down easily when strangeness carrying baryons are introduced into the calculations, as the baryon effective masses become negative due to large meson field potentials. The Quark-Meson Coupling model overcomes this issue by i...
1111.4666
Soo-hyeon Nam
Kang Young Lee and Soo-hyeon Nam
CP violating dimuon charge asymmetry in general left-right models
9 pages, 4 figures
null
10.1103/PhysRevD.85.035001
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The recently measured charge asymmetry of like-sign dimuon events by the D0 collaboration at Tevatron shows the 3.9 \sigma\ deviation from the standard model prediction. In order to solve this mismatch, we investigate the right-handed current contributions to $B_s-\bar{B}_s$ and $B_d-\bar{B}_d$ mixings which are the ...
[ { "created": "Sun, 20 Nov 2011 19:15:12 GMT", "version": "v1" } ]
2013-05-30
[ [ "Lee", "Kang Young", "" ], [ "Nam", "Soo-hyeon", "" ] ]
The recently measured charge asymmetry of like-sign dimuon events by the D0 collaboration at Tevatron shows the 3.9 \sigma\ deviation from the standard model prediction. In order to solve this mismatch, we investigate the right-handed current contributions to $B_s-\bar{B}_s$ and $B_d-\bar{B}_d$ mixings which are the ma...
2408.01068
Ryoto Takai
Yu Hamada, Ryuichiro Kitano, Ryutaro Matsudo, Shohei Okawa, Ryoto Takai, Hiromasa Takaura, Lukas Treuer
Higgs boson production at $\mu^+ \mu^+$ colliders
26 pages, 8 figures
null
null
KEK-TH-2633, DESY-24-094, YITP-24-76
hep-ph
http://creativecommons.org/licenses/by/4.0/
We study Higgs boson production at $\mu^+ \mu^+$ colliders at high energy. Since both initial-state particles are positively charged, there is no $W$ boson fusion at the leading order, as it requires a $W^+ W^-$ pair. However, we find that the cross section of the higher-order, $\gamma$- and $Z$-mediated $W$ boson fu...
[ { "created": "Fri, 2 Aug 2024 07:41:03 GMT", "version": "v1" } ]
2024-08-05
[ [ "Hamada", "Yu", "" ], [ "Kitano", "Ryuichiro", "" ], [ "Matsudo", "Ryutaro", "" ], [ "Okawa", "Shohei", "" ], [ "Takai", "Ryoto", "" ], [ "Takaura", "Hiromasa", "" ], [ "Treuer", "Lukas", "" ] ]
We study Higgs boson production at $\mu^+ \mu^+$ colliders at high energy. Since both initial-state particles are positively charged, there is no $W$ boson fusion at the leading order, as it requires a $W^+ W^-$ pair. However, we find that the cross section of the higher-order, $\gamma$- and $Z$-mediated $W$ boson fusi...
1905.03412
Masashi Wakamatsu
Masashi Wakamatsu
A still unsettled issue in the nucleon spin decomposition problem : On the role of surface terms and gluon topology
The version to appear in European Physical Journal A
null
10.1140/epja/i2019-12800-9
KEK-TH-2124 and J-PARK-TH-0166
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In almost all the past analyses of the decomposition of the nucleon spin into its constituents, surface terms are simply assumed to vanish and not to affect the integrated sum rule of the nucleon spin. However, several authors claim that neglect of surface terms is not necessarily justified, especially owing to possi...
[ { "created": "Thu, 9 May 2019 02:13:14 GMT", "version": "v1" }, { "created": "Fri, 14 Jun 2019 04:18:59 GMT", "version": "v2" } ]
2019-09-04
[ [ "Wakamatsu", "Masashi", "" ] ]
In almost all the past analyses of the decomposition of the nucleon spin into its constituents, surface terms are simply assumed to vanish and not to affect the integrated sum rule of the nucleon spin. However, several authors claim that neglect of surface terms is not necessarily justified, especially owing to possibl...
2306.11392
Michael Spira
Jamie Chang, Fiona Kirk, Margarete M\"uhlleitner and Michael Spira
Charged Higgs-Boson Decays into Quarks
24 pages, 12 figures
null
null
KA-TP-12-2023, PSI-PR-23-18, CERN-TH-2023-112
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the full genuine next-to-leading order SUSY-QCD corrections to the charged Higgs decays into quarks supplemented by the NNLO corrections to the effective top and bottom Yukawa couplings. The NNLO corrections to the effective top Yukawa coupling are a new ingredient of our analysis. We arrive at an approxi...
[ { "created": "Tue, 20 Jun 2023 08:59:35 GMT", "version": "v1" } ]
2023-06-21
[ [ "Chang", "Jamie", "" ], [ "Kirk", "Fiona", "" ], [ "Mühlleitner", "Margarete", "" ], [ "Spira", "Michael", "" ] ]
We consider the full genuine next-to-leading order SUSY-QCD corrections to the charged Higgs decays into quarks supplemented by the NNLO corrections to the effective top and bottom Yukawa couplings. The NNLO corrections to the effective top Yukawa coupling are a new ingredient of our analysis. We arrive at an approxima...
1509.01088
Nikita Agasian
N.O. Agasian, S.M. Fedorov
Hydrogen recombination in the early Universe in the presence of a magnetic field
7 pages, 1 figure
Phys.Atom.Nucl. 79 (2016) no.2, 155-158; Yad.Fiz. 79 (2016) no.2, 117-120
10.1134/S1063778816010038
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Hydrogen recombination in the early Universe in the presence of a magnetic field is studied. An equation for the temperature of recombination in the presence of a magnetic field is derived. Limiting cases of weak and strong fields are considered. It is demonstrated that there exists a critical magnetic field, above w...
[ { "created": "Thu, 3 Sep 2015 13:48:48 GMT", "version": "v1" } ]
2016-11-21
[ [ "Agasian", "N. O.", "" ], [ "Fedorov", "S. M.", "" ] ]
Hydrogen recombination in the early Universe in the presence of a magnetic field is studied. An equation for the temperature of recombination in the presence of a magnetic field is derived. Limiting cases of weak and strong fields are considered. It is demonstrated that there exists a critical magnetic field, above whi...
hep-ph/0501117
Alexander Kalloniatis
Alexander C. Kalloniatis (CSSM, Australia), Jonathan D. Carroll (CSSM, Australia), Byung-Yoon Park (CSSM and Chungnam National University, Korea)
Neutral pion decay into $\nu\bar{\nu}$ in dense skyrmion matter
7 pages, RevTeX, 4 figures. Expanded discussion in light of referee comments
Phys.Rev. D71 (2005) 114001
10.1103/PhysRevD.71.114001
ADP-05-01/T611
hep-ph astro-ph nucl-th
null
We study the weak decay of the neutral pion to a neutrino-antineutrino pair, $\pi^0\to \nu \bar{\nu}$, in the Skyrme model. In baryon free-space the process is forbidden by helicity while in a dense baryonic medium, the process becomes possible already to leading order in $G_F$ due to the break-down of Lorentz symmet...
[ { "created": "Fri, 14 Jan 2005 06:15:55 GMT", "version": "v1" }, { "created": "Wed, 1 Jun 2005 08:56:09 GMT", "version": "v2" } ]
2009-11-11
[ [ "Kalloniatis", "Alexander C.", "", "CSSM, Australia" ], [ "Carroll", "Jonathan D.", "", "CSSM,\n Australia" ], [ "Park", "Byung-Yoon", "", "CSSM and Chungnam National University, Korea" ] ]
We study the weak decay of the neutral pion to a neutrino-antineutrino pair, $\pi^0\to \nu \bar{\nu}$, in the Skyrme model. In baryon free-space the process is forbidden by helicity while in a dense baryonic medium, the process becomes possible already to leading order in $G_F$ due to the break-down of Lorentz symmetry...
1903.06191
Sungwoo Hong
Sungwoo Hong, Gowri Kurup, and Maxim Perelstein
Clockwork Neutrinos
33 pages, 23 figures
null
10.1007/JHEP10(2019)073
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Clockwork (CW) mechanism can explain the smallness of neutrino masses without introducing unnaturally small input parameters. In this paper we study the simplest CW neutrino model, the "uniform" clockwork, as well as a broader class of "generalized" clockwork models. We derive constraints on such models from lepton-f...
[ { "created": "Thu, 14 Mar 2019 18:03:33 GMT", "version": "v1" } ]
2020-01-08
[ [ "Hong", "Sungwoo", "" ], [ "Kurup", "Gowri", "" ], [ "Perelstein", "Maxim", "" ] ]
Clockwork (CW) mechanism can explain the smallness of neutrino masses without introducing unnaturally small input parameters. In this paper we study the simplest CW neutrino model, the "uniform" clockwork, as well as a broader class of "generalized" clockwork models. We derive constraints on such models from lepton-fla...
hep-ph/9710316
Kimball A. Milton
Kimball A. Milton and Olga P. Solovtsova
Analytic Perturbation Theory: A New Approach to the Analytic Continuation of the Strong Coupling Constant $\alpha_S$ into the Timelike Region
16 pages, REVTeX, 7 postscript figures
Phys.Rev. D57 (1998) 5402-5409
10.1103/PhysRevD.57.5402
OKHEP-97-06
hep-ph
null
The renormalization group applied to perturbation theory is ordinarily used to define the running coupling constant in the spacelike region. However, to describe processes with timelike momenta transfers, it is important to have a self-consistent determination of the running coupling constant in the timelike region. ...
[ { "created": "Fri, 10 Oct 1997 19:44:27 GMT", "version": "v1" } ]
2009-10-30
[ [ "Milton", "Kimball A.", "" ], [ "Solovtsova", "Olga P.", "" ] ]
The renormalization group applied to perturbation theory is ordinarily used to define the running coupling constant in the spacelike region. However, to describe processes with timelike momenta transfers, it is important to have a self-consistent determination of the running coupling constant in the timelike region. Th...
1311.2308
Tamas Csorgo
T.Csorgo, R. J. Glauber and F. Nemes
Elastic proton-proton scattering from ISR to LHC energies, focusing on the dip region
13 pages, 6 figures, invited talk of T. Csorgo at the Low x workshop, May 30 - June 4 2013, Rehovot and Eilat, Israel
null
null
null
hep-ph hep-ex nucl-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The differential cross-section of elastic proton-proton collisions is studied at ISR and LHC energies, utilizing a quark-diquark model, that generalizes earlier models of Bialas and Bzdak, and, in addition, a model of Glauber and Velasco. These studies suggest that the increase of the total pp cross-section is mainly...
[ { "created": "Sun, 10 Nov 2013 21:31:11 GMT", "version": "v1" } ]
2013-11-12
[ [ "Csorgo", "T.", "" ], [ "Glauber", "R. J.", "" ], [ "Nemes", "F.", "" ] ]
The differential cross-section of elastic proton-proton collisions is studied at ISR and LHC energies, utilizing a quark-diquark model, that generalizes earlier models of Bialas and Bzdak, and, in addition, a model of Glauber and Velasco. These studies suggest that the increase of the total pp cross-section is mainly d...
hep-ph/9305286
null
Boris Kopeliovich
In Search for (QUANTUM) Color Transparency
9 pages + 5figs (available upon request), report DFTT 24/93
null
null
null
hep-ph
null
Color transparency (CT) is an effect of suppression of nuclear shadowing of hard reactions, closely related to the color screening. A brief review of theoretical development and experimental search for CT, failed and successful, are presented. A special emphasis is made on a quantum-mechanical nature of CT, as oppose...
[ { "created": "Wed, 19 May 1993 13:46:36 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kopeliovich", "Boris", "" ] ]
Color transparency (CT) is an effect of suppression of nuclear shadowing of hard reactions, closely related to the color screening. A brief review of theoretical development and experimental search for CT, failed and successful, are presented. A special emphasis is made on a quantum-mechanical nature of CT, as opposed ...
1906.00432
Vladimir Voronin
Sergei N. Nedelko, Vladimir E. Voronin
Finite size effects in the free energy density for Abelian (anti-)self-dual gluon field in $SU(3)$ gluodynamics
15 pages, 6 figures
null
10.1134/S1547477119060244
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Finite-size effects in the free energy density for Abelian (anti-)self-dual gluon field are investigated within $SU(3)$ gluodynamics. In particular, the role of gluon quasi-zero modes is studied. The effective potential is calculated within the framework of zeta function regularization for finite spherical four-dimen...
[ { "created": "Sun, 2 Jun 2019 16:11:56 GMT", "version": "v1" } ]
2019-12-30
[ [ "Nedelko", "Sergei N.", "" ], [ "Voronin", "Vladimir E.", "" ] ]
Finite-size effects in the free energy density for Abelian (anti-)self-dual gluon field are investigated within $SU(3)$ gluodynamics. In particular, the role of gluon quasi-zero modes is studied. The effective potential is calculated within the framework of zeta function regularization for finite spherical four-dimensi...
0901.0228
D. Indumathi
D. Indumathi, Basudha Misra (The Institute of Mathematical Sciences, Chennai, India)
An extended model for nonet pseudo-scalar meson fragmentation
19 pages latex, 7 eps figures
null
null
IMSc/2008/12/18
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
An SU(3) symmetric model with high predictivity for octet meson (\pi, K) quark fragmentation functions with a simple approach to SU(3) symmetry breaking (due to the relatively heavy strange quarks) is extended to the singlet sector, with some reasonable assumptions, in order to study \eta and \eta' fragmentation. Due...
[ { "created": "Fri, 2 Jan 2009 10:28:24 GMT", "version": "v1" } ]
2009-01-05
[ [ "Indumathi", "D.", "", "The Institute of Mathematical Sciences,\n Chennai, India" ], [ "Misra", "Basudha", "", "The Institute of Mathematical Sciences,\n Chennai, India" ] ]
An SU(3) symmetric model with high predictivity for octet meson (\pi, K) quark fragmentation functions with a simple approach to SU(3) symmetry breaking (due to the relatively heavy strange quarks) is extended to the singlet sector, with some reasonable assumptions, in order to study \eta and \eta' fragmentation. Due t...
hep-ph/9809429
E. W. N. Glover
J. M. Campbell (Fermilab), M.A. Cullen and E. W. N. Glover (Durham University)
Four jet event shapes in electron-positron annihilation
41 pages, LaTeX, 16 figures, discussion of Aplanarity added
Eur.Phys.J.C9:245-265,1999
10.1007/s100529900034
DTP/98/58
hep-ph
null
We report next-to-leading order perturbative QCD predictions of 4 jet event shape variables for the process e+e- \to 4 jets obtained using the general purpose Monte Carlo EERAD2. This program is based on the known `squared' one loop matrix elements for the virtual \gamma^* \to 4 parton contribution and squared matrix...
[ { "created": "Thu, 17 Sep 1998 15:42:14 GMT", "version": "v1" }, { "created": "Tue, 17 Nov 1998 10:36:19 GMT", "version": "v2" } ]
2008-11-26
[ [ "Campbell", "J. M.", "", "Fermilab" ], [ "Cullen", "M. A.", "", "Durham\n University" ], [ "Glover", "E. W. N.", "", "Durham\n University" ] ]
We report next-to-leading order perturbative QCD predictions of 4 jet event shape variables for the process e+e- \to 4 jets obtained using the general purpose Monte Carlo EERAD2. This program is based on the known `squared' one loop matrix elements for the virtual \gamma^* \to 4 parton contribution and squared matrix e...
0812.1887
Carlo Giunti
Carlo Giunti
The GSI Time Anomaly: Facts and Fiction
3 pages; talk presented at NOW 2008, 6-13 September 2008, Conca Specchiulla, Italy
Nucl.Phys.Proc.Suppl.188:43-45,2009
10.1016/j.nuclphysbps.2009.02.009
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The claims that the GSI time anomaly is due to the mixing of neutrinos in the final state of the observed electron-capture processes are refuted. With the help of an analogy with a double-slit experiment, it is shown that the standard method of calculation of the rate of an interaction process by adding the rates of ...
[ { "created": "Wed, 10 Dec 2008 10:42:18 GMT", "version": "v1" } ]
2009-04-17
[ [ "Giunti", "Carlo", "" ] ]
The claims that the GSI time anomaly is due to the mixing of neutrinos in the final state of the observed electron-capture processes are refuted. With the help of an analogy with a double-slit experiment, it is shown that the standard method of calculation of the rate of an interaction process by adding the rates of pr...
1611.04106
Alexander Krutov
A.F.Krutov (Samara University), R.G.Polezhaev (Samara University), V.E.Troitsky (D.V. Skobeltsyn Institute of Nuclear Physics, Moscow State University)
Relativistic constituent model in sector of light mesons
A slightly advanced version of contribution to Proceedings of XIX International Seminar on High Energy Physics "QUARKS-2016", May 29 - June 4, 2016, Pushkin, Russia
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a brief survey of some results on electroweak properties of composite systems that are obtained in the frameworks of our version of the instant form of relativistic quantum mechanics (RQM). Our approach describes well the $\pi$- and the $\rho$- mesons in wide range of momentum transfers $Q^{2}$. At large $...
[ { "created": "Sun, 13 Nov 2016 10:03:45 GMT", "version": "v1" }, { "created": "Sun, 15 Jan 2017 12:38:12 GMT", "version": "v2" } ]
2017-01-17
[ [ "Krutov", "A. F.", "", "Samara University" ], [ "Polezhaev", "R. G.", "", "Samara University" ], [ "Troitsky", "V. E.", "", "D.V. Skobeltsyn Institute of Nuclear Physics, Moscow State\n University" ] ]
We present a brief survey of some results on electroweak properties of composite systems that are obtained in the frameworks of our version of the instant form of relativistic quantum mechanics (RQM). Our approach describes well the $\pi$- and the $\rho$- mesons in wide range of momentum transfers $Q^{2}$. At large $Q^...
hep-ph/9612412
G. Ecker
G. D'Ambrosio, G. Ecker, G. Isidori and H. Neufeld
K -> pi pi pi gamma in chiral perturbation theory
21 pages, Latex, 2 figures embedded with epsfig.sty, submitted to Z. Phys. C
Z.Phys. C76 (1997) 301-310
null
INFNNA-IV-96/47, UWThPh-1996-55, LNF-96/070 (P)
hep-ph
null
We present a complete analysis of K -> 3 pi gamma decays to O(p^4) in the low-energy expansion of the Standard Model. We employ the notion of "generalized bremsstrahlung" to take full advantage of experimental information on the corresponding non-radiative K -> 3 pi decays.
[ { "created": "Thu, 19 Dec 1996 14:22:18 GMT", "version": "v1" } ]
2007-05-23
[ [ "D'Ambrosio", "G.", "" ], [ "Ecker", "G.", "" ], [ "Isidori", "G.", "" ], [ "Neufeld", "H.", "" ] ]
We present a complete analysis of K -> 3 pi gamma decays to O(p^4) in the low-energy expansion of the Standard Model. We employ the notion of "generalized bremsstrahlung" to take full advantage of experimental information on the corresponding non-radiative K -> 3 pi decays.
hep-ph/9611312
null
Duane A. Dicus and S. Nandi
New Collider Bound on Light Gravitino Mass
9 pages, Latex, macros and 2 figures not included
Phys.Rev. D56 (1997) 4166-4169
10.1103/PhysRevD.56.4166
UTEXAS-HEP-96-17
hep-ph
null
In supergravity theories with a very light gravitino, the gluino decays dominantly to a gluon and a gravitino. This results in a much larger missing $E_T$ for the multijet final states in hadronic colliders. We use the latest Tevatron data for the multijet final states to set a new absolute lower bound of 3.0 x 10^{-...
[ { "created": "Tue, 12 Nov 1996 16:04:21 GMT", "version": "v1" } ]
2009-10-30
[ [ "Dicus", "Duane A.", "" ], [ "Nandi", "S.", "" ] ]
In supergravity theories with a very light gravitino, the gluino decays dominantly to a gluon and a gravitino. This results in a much larger missing $E_T$ for the multijet final states in hadronic colliders. We use the latest Tevatron data for the multijet final states to set a new absolute lower bound of 3.0 x 10^{-13...
hep-ph/9503242
Apostolos Pilaftsis
Apostolos Pilaftsis
SLC/LEP CONSTRAINTS ON UNIFIED MODELS
LaTeX file, 12 pages (2 Figs.), talk given at Ringberg Workshop on "Perspectives for electroweak interactions in e+e- collisions", (February 5-8, Munich (FRG), 1995)
null
null
RAL-95-025.
hep-ph
null
We examine the potential of constraining possible nondecoupling effects of heavy neutrinos and Higgs bosons at LEP and SLC that may show up in the nonoblique part of the $Zl_il_j$ couplings. We analyze this type of new-physics interactions within the context of low-energy scenarios motivated by unified theories, such...
[ { "created": "Mon, 6 Mar 1995 16:28:02 GMT", "version": "v1" } ]
2016-09-01
[ [ "Pilaftsis", "Apostolos", "" ] ]
We examine the potential of constraining possible nondecoupling effects of heavy neutrinos and Higgs bosons at LEP and SLC that may show up in the nonoblique part of the $Zl_il_j$ couplings. We analyze this type of new-physics interactions within the context of low-energy scenarios motivated by unified theories, such a...
hep-ph/9903505
Morimitsu Tanimoto
M. Tanimoto
Generation of Neutrino Masses and Mixings in Gauge Theories
5 pages, Invited talk in WIN 99 at Cape Town, LaTex file with sprocl.sty
null
null
null
hep-ph
null
I review models which present large flavor mixings of the lepton sector based on the gauge theory.
[ { "created": "Sat, 27 Mar 1999 06:47:01 GMT", "version": "v1" } ]
2007-05-23
[ [ "Tanimoto", "M.", "" ] ]
I review models which present large flavor mixings of the lepton sector based on the gauge theory.
1906.02116
John Gracey
J.A. Gracey
Off-shell quark bilinear operator Green's functions at two loops
17 latex pages, 10 figures
Phys. Rev. D 99, 125017 (2019)
10.1103/PhysRevD.99.125017
LTH 1206
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We construct the two loop Green's functions for a quark bilinear operator inserted at non-zero momentum in a quark 2-point function for the most general off-shell configuration. In particular we consider the quark mass operator, vector and tensor currents as well as the second moment of the flavour non-singlet Wilson...
[ { "created": "Wed, 5 Jun 2019 16:44:36 GMT", "version": "v1" } ]
2019-07-03
[ [ "Gracey", "J. A.", "" ] ]
We construct the two loop Green's functions for a quark bilinear operator inserted at non-zero momentum in a quark 2-point function for the most general off-shell configuration. In particular we consider the quark mass operator, vector and tensor currents as well as the second moment of the flavour non-singlet Wilson o...
2309.01195
Oleksandra Deineka
Oleksandra Deineka, Igor Danilkin, Marc Vanderhaeghen
A dispersive estimate of the $a_0(980)$ contribution to hadronic light-by-light scattering in $(g-2)_\mu$
4 pages, 2 figures, Proceedings of 17th International Workshop on Meson Physics (MESON2023), 22nd - 27th June, 2023
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
A dispersive implementation of the $a_0(980)$ resonance to $(g-2)_\mu$ requires the knowledge of the double-virtual $S$-wave $\gamma^*\gamma^*\to\pi\eta / K\bar{K}_{I=1}$ amplitudes. To obtain these amplitudes we used a modified coupled-channel Muskhelischvili-Omn\`es formalism, with the input from the left-hand cuts...
[ { "created": "Sun, 3 Sep 2023 14:59:01 GMT", "version": "v1" } ]
2023-09-06
[ [ "Deineka", "Oleksandra", "" ], [ "Danilkin", "Igor", "" ], [ "Vanderhaeghen", "Marc", "" ] ]
A dispersive implementation of the $a_0(980)$ resonance to $(g-2)_\mu$ requires the knowledge of the double-virtual $S$-wave $\gamma^*\gamma^*\to\pi\eta / K\bar{K}_{I=1}$ amplitudes. To obtain these amplitudes we used a modified coupled-channel Muskhelischvili-Omn\`es formalism, with the input from the left-hand cuts a...
hep-ph/0211203
Pedro Fernando Simoes Costa
Pedro Costa, M. C. Ruivo and Yu. L. Kalinovsky
Pseudoscalar neutral mesons in hot and dense matter
10 pages, 4 figures included; revised version with one additional figure, some changes in the discussion, to be published in Phys. Lett. B
Phys. Lett. B 560 (2003) 171-177
10.1016/S0370-2693(03)00395-2
null
hep-ph
null
The behavior of neutral pseudoscalar mesons $\pi^0, \eta$ and $\eta'$ in hot and dense matter is investigated, in the framework of the three flavor Nambu-Jona-Lasinio model. Three different scenarios are considered: zero density and finite temperature, zero temperature and finite density in a flavor asymmetric medium...
[ { "created": "Wed, 13 Nov 2002 15:29:33 GMT", "version": "v1" }, { "created": "Mon, 17 Mar 2003 16:24:09 GMT", "version": "v2" } ]
2007-05-23
[ [ "Costa", "Pedro", "" ], [ "Ruivo", "M. C.", "" ], [ "Kalinovsky", "Yu. L.", "" ] ]
The behavior of neutral pseudoscalar mesons $\pi^0, \eta$ and $\eta'$ in hot and dense matter is investigated, in the framework of the three flavor Nambu-Jona-Lasinio model. Three different scenarios are considered: zero density and finite temperature, zero temperature and finite density in a flavor asymmetric medium w...
1312.7309
Alexei Smirnov Yu
Alexei Yu. Smirnov
Neutrino mass hierarchy and matter effects
15 pages, 19 figures, Talk given at XV Workshop on Neutrino Telescopes, 11-15 March 2013, Venice, Italy
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Matter effects modify the mixing and the effective masses of neutrinos in a way which depends on the neutrino mass hierarchy. Consequently, for normal and inverted hierarchies the oscillations and flavor conversion results are different. Sensitivity to the mass hierarchy appears whenever the matter effects on the 1-3...
[ { "created": "Fri, 27 Dec 2013 18:22:13 GMT", "version": "v1" } ]
2013-12-30
[ [ "Smirnov", "Alexei Yu.", "" ] ]
Matter effects modify the mixing and the effective masses of neutrinos in a way which depends on the neutrino mass hierarchy. Consequently, for normal and inverted hierarchies the oscillations and flavor conversion results are different. Sensitivity to the mass hierarchy appears whenever the matter effects on the 1-3 m...
1703.00841
Sebastian Trojanowski
Leszek Roszkowski, Sebastian Trojanowski, Krzysztof Turzynski
Towards understanding thermal history of the Universe through direct and indirect detection of dark matter
31 pages, 7 figures, extended discussion in section 2
JCAP 1710 (2017) no.10, 005
10.1088/1475-7516/2017/10/005
UCI-HEP-TR-2016-28
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We examine the question to what extent prospective detection of dark matter by direct and indirect- detection experiments could shed light on what fraction of dark matter was generated thermally via the freeze-out process in the early Universe. By simulating putative signals that could be seen in the near future and ...
[ { "created": "Thu, 2 Mar 2017 16:00:12 GMT", "version": "v1" }, { "created": "Wed, 29 Mar 2017 17:53:28 GMT", "version": "v2" }, { "created": "Mon, 16 Oct 2017 22:59:06 GMT", "version": "v3" } ]
2017-10-18
[ [ "Roszkowski", "Leszek", "" ], [ "Trojanowski", "Sebastian", "" ], [ "Turzynski", "Krzysztof", "" ] ]
We examine the question to what extent prospective detection of dark matter by direct and indirect- detection experiments could shed light on what fraction of dark matter was generated thermally via the freeze-out process in the early Universe. By simulating putative signals that could be seen in the near future and us...
hep-ph/0311203
S. Chaturvedi
S. Chaturvedi, Virendra Gupta
Is the quark- mixing matrix moduli symmetric?
7 pages, Latex, 1 figure
Mod.Phys.Lett. A19 (2004) 159
10.1142/S0217732304013039
null
hep-ph
null
If the unitary quark- mixing matrix, $V$, is moduli symmetric then it depends on three real parameters. This means that there is a relation between the four parameters needed to parametrize a general $V$. It is shown that there exists a very simple relation involving $|V_{11}|^2, |V_{33}|^2,\orh $ and $\oet$. This re...
[ { "created": "Sat, 15 Nov 2003 05:38:46 GMT", "version": "v1" } ]
2009-11-10
[ [ "Chaturvedi", "S.", "" ], [ "Gupta", "Virendra", "" ] ]
If the unitary quark- mixing matrix, $V$, is moduli symmetric then it depends on three real parameters. This means that there is a relation between the four parameters needed to parametrize a general $V$. It is shown that there exists a very simple relation involving $|V_{11}|^2, |V_{33}|^2,\orh $ and $\oet$. This rela...
2206.07598
Matteo Cerutti
Alessandro Bacchetta, Valerio Bertone, Chiara Bissolotti, Giuseppe Bozzi, Matteo Cerutti, Fulvio Piacenza, Marco Radici, Andrea Signori
Unpolarized Transverse Momentum Distributions from a global fit of Drell-Yan and Semi-Inclusive Deep-Inelastic Scattering data
Version accepted for publication. Results unchanged, only some clarifications have been added
null
10.1007/JHEP10(2022)127
null
hep-ph hep-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present an extraction of unpolarized transverse-momentum-dependent parton distribution and fragmentation functions based on more than two thousands data points from several experiments for two different processes: semi-inclusive deep-inelastic scattering and Drell-Yan production of lepton pairs. The baseline analy...
[ { "created": "Wed, 15 Jun 2022 15:26:04 GMT", "version": "v1" }, { "created": "Thu, 24 Nov 2022 17:11:25 GMT", "version": "v2" } ]
2022-11-28
[ [ "Bacchetta", "Alessandro", "" ], [ "Bertone", "Valerio", "" ], [ "Bissolotti", "Chiara", "" ], [ "Bozzi", "Giuseppe", "" ], [ "Cerutti", "Matteo", "" ], [ "Piacenza", "Fulvio", "" ], [ "Radici", "Marco", ""...
We present an extraction of unpolarized transverse-momentum-dependent parton distribution and fragmentation functions based on more than two thousands data points from several experiments for two different processes: semi-inclusive deep-inelastic scattering and Drell-Yan production of lepton pairs. The baseline analysi...
hep-ph/0505102
Santiago Noguera
S. Noguera, V. Vento (Valencia U. & Valencia U., IFIC)
Pion Parton Distributions in a non local Lagrangian
Latex, 11 pages with 6 figures
Eur.Phys.J. A28 (2006) 227-236
10.1140/epja/i2006-10045-5
null
hep-ph
null
We use phenomenological nonlocal Lagrangians, which lead to non trivial forms for the quark propagator, to describe the pion. We define a procedure, based on the Dyson-Schwinger equations, for the calculation of the pion parton distributions at low Q^2. The obtained parton distributions fulfill all the wishful proper...
[ { "created": "Thu, 12 May 2005 13:40:00 GMT", "version": "v1" }, { "created": "Wed, 25 May 2005 14:16:29 GMT", "version": "v2" }, { "created": "Mon, 13 Mar 2006 11:38:40 GMT", "version": "v3" } ]
2009-11-11
[ [ "Noguera", "S.", "", "Valencia U. & Valencia U., IFIC" ], [ "Vento", "V.", "", "Valencia U. & Valencia U., IFIC" ] ]
We use phenomenological nonlocal Lagrangians, which lead to non trivial forms for the quark propagator, to describe the pion. We define a procedure, based on the Dyson-Schwinger equations, for the calculation of the pion parton distributions at low Q^2. The obtained parton distributions fulfill all the wishful properti...
1611.10070
Petr Bydzovsky
P. Byd\v{z}ovsk\'y, R. Kami\'nski, and V. Nazari
Dispersive analysis of the $S$-, $P$-, $D$-, and $F$-wave $\pi\pi$ amplitudes
13 pages, 9 figures, 15 tables, accepted in the Physical Review D
Phys. Rev. D 94, 116013 (2016)
10.1103/PhysRevD.94.116013
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A reanalysis of $\pi\pi$ amplitudes for all important partial-waves below about 2 GeV is presented. A set of once subtracted dispersion relations with imposed crossing symmetry condition is used to modify unitary multi-channel amplitudes in the $S$, $P$, $D$, and $F$ waves. So far, these specific amplitudes construct...
[ { "created": "Wed, 30 Nov 2016 10:00:35 GMT", "version": "v1" } ]
2018-01-24
[ [ "Bydžovský", "P.", "" ], [ "Kamiński", "R.", "" ], [ "Nazari", "V.", "" ] ]
A reanalysis of $\pi\pi$ amplitudes for all important partial-waves below about 2 GeV is presented. A set of once subtracted dispersion relations with imposed crossing symmetry condition is used to modify unitary multi-channel amplitudes in the $S$, $P$, $D$, and $F$ waves. So far, these specific amplitudes constructed...
2307.14402
Fei Sun
Fei Sun, Kun Xu, and Mei Huang
The Splitting of Chiral and Deconfinement Phase Transitions induced by Rotation
9 pages, 5 figures
null
10.1103/PhysRevD.108.096007
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
The chiral and deconfinement phase transitions under rotation have been simultaneously investigated in the Polyakov-Nambu-Jona-Lasinio (PNJL) model. An interesting observation has been found that the chiral phase transition is catalyzed and the deconfinement phase transition is decelerated by rotation, therefore a ch...
[ { "created": "Wed, 26 Jul 2023 16:47:24 GMT", "version": "v1" }, { "created": "Wed, 8 Nov 2023 14:58:08 GMT", "version": "v2" } ]
2023-11-09
[ [ "Sun", "Fei", "" ], [ "Xu", "Kun", "" ], [ "Huang", "Mei", "" ] ]
The chiral and deconfinement phase transitions under rotation have been simultaneously investigated in the Polyakov-Nambu-Jona-Lasinio (PNJL) model. An interesting observation has been found that the chiral phase transition is catalyzed and the deconfinement phase transition is decelerated by rotation, therefore a chir...
2311.12757
Upalaparna Banerjee
Upalaparna Banerjee, Joydeep Chakrabortty, Shakeel Ur Rahaman, Kaanapuli Ramkumar
One-loop Effective Action up to any Mass-dimension for Non-degenerate Scalars and Fermions including Light-Heavy Mixing
null
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We propose a Heat-Kernel-based method to compute one-loop effective action up to any mass-dimension with arbitrary numbers of non-degenerate scalars and fermions. We demonstrate our prescription by computing the dimension six effective action for arbitrary numbers of non-degenerate scalars, which are consistent with ...
[ { "created": "Tue, 21 Nov 2023 18:06:10 GMT", "version": "v1" } ]
2023-11-22
[ [ "Banerjee", "Upalaparna", "" ], [ "Chakrabortty", "Joydeep", "" ], [ "Rahaman", "Shakeel Ur", "" ], [ "Ramkumar", "Kaanapuli", "" ] ]
We propose a Heat-Kernel-based method to compute one-loop effective action up to any mass-dimension with arbitrary numbers of non-degenerate scalars and fermions. We demonstrate our prescription by computing the dimension six effective action for arbitrary numbers of non-degenerate scalars, which are consistent with de...
0901.4396
Hai-Yang Cheng
Hai-Yang Cheng, Jim Smith
Charmless Hadronic B-Meson Decays
33 pages, 11 figures, 1 table, invited review to appear in Ann. Rev. of Nucl. and Part. Science
Ann.Rev.Nucl.Part.Sci.59:215-243,2009
10.1146/annurev.nucl.010909.083136
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We give an overview of the experimental measurements and the theoretical understanding of the branching fractions and CP-violating asymmetries of charmless B-meson decays. Most experimetal results are from the BABAR and Belle experiments during the past decade. The global features of these experimental results are ty...
[ { "created": "Wed, 28 Jan 2009 07:36:19 GMT", "version": "v1" } ]
2009-12-15
[ [ "Cheng", "Hai-Yang", "" ], [ "Smith", "Jim", "" ] ]
We give an overview of the experimental measurements and the theoretical understanding of the branching fractions and CP-violating asymmetries of charmless B-meson decays. Most experimetal results are from the BABAR and Belle experiments during the past decade. The global features of these experimental results are typi...
hep-ph/0312350
Howard Baer
Howard Baer and Jorge O' Farrill
Probing Neutralino Resonance Annihilation via Indirect Detection of Dark Matter
12 pages including 4 eps figures
JCAP 0404 (2004) 005
10.1088/1475-7516/2004/04/005
FSU-HEP-031130
hep-ph astro-ph
null
The lightest neutralino of R-parity conserving supersymmetric models serves as a compelling candidate to account for the presence of cold dark matter in the universe. In the minimal supergravity (mSUGRA) model, a relic density can be found in accord with recent WMAP data for large values of the parameter $\tan\beta$,...
[ { "created": "Fri, 26 Dec 2003 21:03:45 GMT", "version": "v1" } ]
2009-11-10
[ [ "Baer", "Howard", "" ], [ "Farrill", "Jorge O'", "" ] ]
The lightest neutralino of R-parity conserving supersymmetric models serves as a compelling candidate to account for the presence of cold dark matter in the universe. In the minimal supergravity (mSUGRA) model, a relic density can be found in accord with recent WMAP data for large values of the parameter $\tan\beta$, w...
2309.11269
Thomas Cridge
N\'estor Armesto, Thomas Cridge, Francesco Giuli, Lucian Harland-Lang, Paul Newman, Barak Schmookler, Robert Thorne, Katarzyna Wichmann
Impact of Inclusive Electron Ion Collider Data on Collinear Parton Distributions
12 pages, 11 figures, 1 Table
Phys.Rev.D 109 (2024) 5, 054019
10.1103/PhysRevD.109.054019
DESY-23-136
hep-ph
http://creativecommons.org/licenses/by/4.0/
A study is presented of the impact of simulated inclusive Electron Ion Collider Deep Inelastic Scattering data on the determination of the proton and nuclear parton distribution functions (PDFs) at next-to-next-to-leading and next-to-leading order in QCD, respectively. The influence on the proton PDFs is evaluated re...
[ { "created": "Wed, 20 Sep 2023 12:51:17 GMT", "version": "v1" }, { "created": "Fri, 15 Mar 2024 09:42:26 GMT", "version": "v2" } ]
2024-03-18
[ [ "Armesto", "Néstor", "" ], [ "Cridge", "Thomas", "" ], [ "Giuli", "Francesco", "" ], [ "Harland-Lang", "Lucian", "" ], [ "Newman", "Paul", "" ], [ "Schmookler", "Barak", "" ], [ "Thorne", "Robert", "" ], ...
A study is presented of the impact of simulated inclusive Electron Ion Collider Deep Inelastic Scattering data on the determination of the proton and nuclear parton distribution functions (PDFs) at next-to-next-to-leading and next-to-leading order in QCD, respectively. The influence on the proton PDFs is evaluated rela...
1808.01760
Majid Monemzadeh Dr.
P Sadeghi Alavijeh, N Tazimi and M Monemzadeh
Calculation of heavy meson potential coefficients by solving Lippman-Schwinger equation
null
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
In the present work, we study meson systems consisting of quark-antiquark. We solve lippman-Schwinger equation numerically for heavy meson systems. We attempt to find a non-relativistic potential model through which we can solve the quark-antiquark bound state problem. The coefficients so obtained are in agreement wi...
[ { "created": "Mon, 6 Aug 2018 08:03:03 GMT", "version": "v1" } ]
2018-08-07
[ [ "Alavijeh", "P Sadeghi", "" ], [ "Tazimi", "N", "" ], [ "Monemzadeh", "M", "" ] ]
In the present work, we study meson systems consisting of quark-antiquark. We solve lippman-Schwinger equation numerically for heavy meson systems. We attempt to find a non-relativistic potential model through which we can solve the quark-antiquark bound state problem. The coefficients so obtained are in agreement with...
hep-ph/9601311
Hisakazu Minakata
Hisakazu Minakata and Alexei Yu. Smirnov
High Energy Cosmic Neutrinos and the Equivalence Principle
24 pages, revtex, no figures, slightly revised with no change in conclusion
Phys.Rev.D54:3698-3705,1996
10.1103/PhysRevD.54.3698
TMUP-HEL-9601, IC/96/9
hep-ph
null
Observation of the ultra-high energy neutrinos, in particular, detection of $\nu_{\tau}$ from cosmologically distant sources like active galactic nuclei (AGN) opens new possibilities to search for neutrino flavor conversion. We consider effects of violation of the equivalence principle (VEP) on propagation of these c...
[ { "created": "Tue, 23 Jan 1996 10:11:03 GMT", "version": "v1" }, { "created": "Wed, 1 May 1996 02:05:26 GMT", "version": "v2" } ]
2009-12-30
[ [ "Minakata", "Hisakazu", "" ], [ "Smirnov", "Alexei Yu.", "" ] ]
Observation of the ultra-high energy neutrinos, in particular, detection of $\nu_{\tau}$ from cosmologically distant sources like active galactic nuclei (AGN) opens new possibilities to search for neutrino flavor conversion. We consider effects of violation of the equivalence principle (VEP) on propagation of these cos...
2208.10901
Raghunath Sahoo
Bhagyarathi Sahoo, Suman Deb, and Raghunath Sahoo
Multiplicity, transverse momentum and pseudorapidity dependence of open-heavy flavored hadron production in proton+proton collisions at $\sqrt{s}$= 13 TeV
13 pages and 8 figures. Submitted for publication
null
null
null
hep-ph hep-ex hep-th nucl-ex nucl-th
http://creativecommons.org/licenses/by-sa/4.0/
Recently, with the upgradation of LHC, it is realized that study of heavy-flavored hadrons, namely $\Lambda_{c}^{+}$ and $\rm{D}^{0}$ in hadronic collisions, could reveal the possibility of thermalization of charm quarks. With this motivation, we study the production dynamics of these hadrons in proton+proton collisi...
[ { "created": "Tue, 23 Aug 2022 12:11:05 GMT", "version": "v1" } ]
2022-08-24
[ [ "Sahoo", "Bhagyarathi", "" ], [ "Deb", "Suman", "" ], [ "Sahoo", "Raghunath", "" ] ]
Recently, with the upgradation of LHC, it is realized that study of heavy-flavored hadrons, namely $\Lambda_{c}^{+}$ and $\rm{D}^{0}$ in hadronic collisions, could reveal the possibility of thermalization of charm quarks. With this motivation, we study the production dynamics of these hadrons in proton+proton collision...
2210.09178
Simon Platzer
Simon Pl\"atzer
Amplitude and colour evolution
7 pages, 1 figure, contribution to the proceedings of the 51st International Symposium on Multiparticle Dynamics (ISMD2022). arXiv admin note: text overlap with arXiv:2012.15215
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Colour evolution and parton branching at the amplitude level have become important theoretical frameworks to improve parton showers, and are algorithms in their own right: they complement shower development by resummation algorithms capable of including interference effects and subleading colour contributions at an u...
[ { "created": "Mon, 17 Oct 2022 15:27:25 GMT", "version": "v1" } ]
2022-10-18
[ [ "Plätzer", "Simon", "" ] ]
Colour evolution and parton branching at the amplitude level have become important theoretical frameworks to improve parton showers, and are algorithms in their own right: they complement shower development by resummation algorithms capable of including interference effects and subleading colour contributions at an unp...
hep-ph/0010022
Danny Marfatia
Danny Marfatia
Cosmology and Hierarchy in Stabilized Randall-Sundrum Models
3 pages, 1 figure, 1 table. Talk given at DPF 2000, Columbus, OH, August 12, 2000
Int.J.Mod.Phys. A16S1C (2001) 946-948
10.1142/S0217751X01008576
null
hep-ph hep-th
null
We consider the cosmology and hierarchy of scales in models with branes immersed in a five-dimensional curved spacetime subject to radion stabilization. The universe naturally find itself in the radiation-dominated epoch when the inter-brane spacing is static and stable, independent of the form of the stabilizing pot...
[ { "created": "Tue, 3 Oct 2000 17:37:02 GMT", "version": "v1" } ]
2009-10-31
[ [ "Marfatia", "Danny", "" ] ]
We consider the cosmology and hierarchy of scales in models with branes immersed in a five-dimensional curved spacetime subject to radion stabilization. The universe naturally find itself in the radiation-dominated epoch when the inter-brane spacing is static and stable, independent of the form of the stabilizing poten...
1306.2986
Howard Baer
Kyu Jung Bae, Howard Baer and Andre Lessa
Implications of mixed axion/neutralino dark matter for the Cosmic Frontier: a Snowmass whitepaper
6 page Snowmass whitepaper for Cosmic Frontier
null
null
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
If one simultaneously invokes the SUSY solution to the gauge hierarchy problem and the PQ solution to the strong CP problem, then one might expect mixed axion/neutralino dark matter (DM), i.e. two dark matter particles. In this case, dark matter production involves oscillation production of axions, thermal and non-th...
[ { "created": "Wed, 12 Jun 2013 22:44:32 GMT", "version": "v1" }, { "created": "Mon, 17 Jun 2013 16:18:30 GMT", "version": "v2" } ]
2013-06-18
[ [ "Bae", "Kyu Jung", "" ], [ "Baer", "Howard", "" ], [ "Lessa", "Andre", "" ] ]
If one simultaneously invokes the SUSY solution to the gauge hierarchy problem and the PQ solution to the strong CP problem, then one might expect mixed axion/neutralino dark matter (DM), i.e. two dark matter particles. In this case, dark matter production involves oscillation production of axions, thermal and non-ther...
hep-ph/9904246
Alessandro Strumia
Alessandro Strumia and Nikolaos Tetradis
Testing nucleation theory in two dimensions
12 pages, 2 figures. Final version; minor misprints corrected
Nucl.Phys.B560:482-496,1999
10.1016/S0550-3213(99)00455-1
null
hep-ph hep-lat hep-th
null
We calculate bubble-nucleation rates for (2+1)-dimensional scalar theories at high temperature. Our approach is based on the notion of a real coarse-grained potential. The region of applicability of our method is determined through internal consistency criteria. We compare our results with data from lattice simulatio...
[ { "created": "Tue, 6 Apr 1999 16:17:39 GMT", "version": "v1" }, { "created": "Wed, 8 Sep 1999 16:19:19 GMT", "version": "v2" } ]
2009-10-09
[ [ "Strumia", "Alessandro", "" ], [ "Tetradis", "Nikolaos", "" ] ]
We calculate bubble-nucleation rates for (2+1)-dimensional scalar theories at high temperature. Our approach is based on the notion of a real coarse-grained potential. The region of applicability of our method is determined through internal consistency criteria. We compare our results with data from lattice simulations...
hep-ph/0301114
Andrej Arbuzov
A.B. Arbuzov (JINR, Dubna)
Virtual and Soft Pair Corrections to Polarized Muon Decay Spectrum
10pp, 2 PS figs, details of calculations are added
JETP Lett. 78 (2003) 179-182; Pisma Zh.Eksp.Teor.Fiz. 78 (2003) 215-218
10.1134/1.1622027
null
hep-ph
null
Radiative corrections to the muon decay spectrum due to soft and virtual electron--positron pairs are calculated.
[ { "created": "Thu, 16 Jan 2003 12:40:38 GMT", "version": "v1" }, { "created": "Tue, 1 Jul 2003 08:26:11 GMT", "version": "v2" } ]
2009-11-10
[ [ "Arbuzov", "A. B.", "", "JINR, Dubna" ] ]
Radiative corrections to the muon decay spectrum due to soft and virtual electron--positron pairs are calculated.
1309.6888
Pankaj Sharma
Eung Jin Chun and Pankaj Sharma
Search for a doubly-charged boson in four lepton final states in type II seesaw
15 pages, 13 figures
null
10.1016/j.physletb.2013.11.056
KIAS-P13054
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
CMS and ATLAS have searched for a doubly-charged boson $H^{\pm\pm}$ which may arise from type II seesaw in the 7 TeV run at the LHC by considering pair or associated production of doubly-charged bosons under the assumption of degenerate triplet scalars. In this work, we consider non-degenerate triplet components with...
[ { "created": "Thu, 26 Sep 2013 13:29:17 GMT", "version": "v1" } ]
2015-06-17
[ [ "Chun", "Eung Jin", "" ], [ "Sharma", "Pankaj", "" ] ]
CMS and ATLAS have searched for a doubly-charged boson $H^{\pm\pm}$ which may arise from type II seesaw in the 7 TeV run at the LHC by considering pair or associated production of doubly-charged bosons under the assumption of degenerate triplet scalars. In this work, we consider non-degenerate triplet components with t...
hep-ph/9701423
Igor Tkatchev
S. Yu. Khlebnikov and I. I. Tkachev
Relic gravitational waves produced after preheating
Latex, 18 pages including 3 figures
Phys. Rev. D 56, 653 (1997)
10.1103/PhysRevD.56.653
PURD-TH-97-02, OSU-TA-01/97
hep-ph astro-ph gr-qc
null
We show that gravitational radiation is produced quite efficiently in interactions of classical waves created by resonant decay of a coherently oscillating field. For simple models of chaotic inflation in which the inflaton interacts with another scalar field, we find that today's ratio of energy density in gravitati...
[ { "created": "Thu, 30 Jan 1997 23:02:40 GMT", "version": "v1" } ]
2016-08-24
[ [ "Khlebnikov", "S. Yu.", "" ], [ "Tkachev", "I. I.", "" ] ]
We show that gravitational radiation is produced quite efficiently in interactions of classical waves created by resonant decay of a coherently oscillating field. For simple models of chaotic inflation in which the inflaton interacts with another scalar field, we find that today's ratio of energy density in gravitation...
0710.3133
Aaron Pierce
Michael Gerbush, Teng Jian Khoo, Daniel Phalen, Aaron Pierce, David Tucker-Smith
Color-octet scalars at the LHC
15 pages, 6 figues; corrected typos and added discussion of decays to b b-bar
Phys.Rev.D77:095003,2008
10.1103/PhysRevD.77.095003
MCTP-07-29
hep-ph
null
Color-octet scalars, if present at the TeV scale, will be produced in abundance at the LHC. We discuss in some detail the phenomenology of scalars in the (8,2)_{1/2} representation, recently identified by Manohar and Wise as an addition to the standard-model Higgs sector consistent with the principle of minimal flavo...
[ { "created": "Tue, 16 Oct 2007 17:32:07 GMT", "version": "v1" }, { "created": "Fri, 4 Jan 2008 15:33:38 GMT", "version": "v2" } ]
2008-11-26
[ [ "Gerbush", "Michael", "" ], [ "Khoo", "Teng Jian", "" ], [ "Phalen", "Daniel", "" ], [ "Pierce", "Aaron", "" ], [ "Tucker-Smith", "David", "" ] ]
Color-octet scalars, if present at the TeV scale, will be produced in abundance at the LHC. We discuss in some detail the phenomenology of scalars in the (8,2)_{1/2} representation, recently identified by Manohar and Wise as an addition to the standard-model Higgs sector consistent with the principle of minimal flavor ...
1506.04613
Guruprasad Kadam Mr.
Guru Prakash Kadam and Hiranmaya Mishra
Dissipative properties of hot and dense hadronic matter in excluded volume hadron resonance gas model
Results corrected, 2 new figures, abstract, discussion and conclusion revised, references added, accepted for publication in Physical Review C
Physical Review C 92 , 035203 (2015)
10.1103/PhysRevC.92.035203
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We estimate dissipative properties viz: shear and bulk viscosities of hadronic matter using relativistic Boltzmann equation in relaxation time approximation within ambit of excluded volume hadron resonance gas (EHRG) model. We find that at zero baryon chemical potential the shear viscosity to entropy ratio ($\eta/s$)...
[ { "created": "Mon, 15 Jun 2015 14:39:39 GMT", "version": "v1" }, { "created": "Mon, 22 Jun 2015 08:59:43 GMT", "version": "v2" }, { "created": "Fri, 21 Aug 2015 17:30:00 GMT", "version": "v3" } ]
2015-09-14
[ [ "Kadam", "Guru Prakash", "" ], [ "Mishra", "Hiranmaya", "" ] ]
We estimate dissipative properties viz: shear and bulk viscosities of hadronic matter using relativistic Boltzmann equation in relaxation time approximation within ambit of excluded volume hadron resonance gas (EHRG) model. We find that at zero baryon chemical potential the shear viscosity to entropy ratio ($\eta/s$) d...
hep-ph/0302241
Kiselev
V.V. Kiselev
Gold-plated Mode of CP-Violation in Decays of B_c Meson from QCD Sum Rules
11 pages, RevTeX4 file, 4 eps-figures
J.Phys.G30:1445-1458,2004
10.1088/0954-3899/30/10/010
null
hep-ph
null
The model-independent method based on the triangle ideology is implemented to extract the CKM-matrix angle gamma in the decays of doubly heavy long-lived meson B_c. We analyze a color structure of diagrams and conditions to reconstruct two reference-triangles by tagging the flavor and CP eigenstates of D^0 meson in t...
[ { "created": "Wed, 26 Feb 2003 14:22:54 GMT", "version": "v1" } ]
2010-11-23
[ [ "Kiselev", "V. V.", "" ] ]
The model-independent method based on the triangle ideology is implemented to extract the CKM-matrix angle gamma in the decays of doubly heavy long-lived meson B_c. We analyze a color structure of diagrams and conditions to reconstruct two reference-triangles by tagging the flavor and CP eigenstates of D^0 meson in the...
1601.06751
Stefan Kallweit
Massimiliano Grazzini, Stefan Kallweit, Dirk Rathlev
Wgamma and Zgamma production at the LHC in NNLO QCD
10 pages, 3 figures, to appear in the proceedings of the 12th International Symposium on Radiative Corrections (Radcor 2015) and LoopFest XIV (Radiative Corrections for the LHC and Future Colliders)
null
null
MITP/16-010, DESY 16-015
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the production of Wgamma and Zgamma pairs at the LHC, and report on the fully differential computation of next-to-next-to-leading order (NNLO) corrections in QCD perturbation theory. The calculation includes leptonic vector-boson decays with the corresponding spin correlations, off-shell effects and final...
[ { "created": "Mon, 25 Jan 2016 20:15:08 GMT", "version": "v1" } ]
2016-01-26
[ [ "Grazzini", "Massimiliano", "" ], [ "Kallweit", "Stefan", "" ], [ "Rathlev", "Dirk", "" ] ]
We consider the production of Wgamma and Zgamma pairs at the LHC, and report on the fully differential computation of next-to-next-to-leading order (NNLO) corrections in QCD perturbation theory. The calculation includes leptonic vector-boson decays with the corresponding spin correlations, off-shell effects and final-s...
1507.00457
Yoshio Koide
Yoshio Koide
Can Family Gauge Bosons Be Visible by Terrestrial Experiments?
5 pages, no figure, an invited talk at CST-MISC Joint Symp. (2014)
JSPS Conf. Proc. 7, 010009 (2015)
10.7566/JPSCP.7.010009
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is investigated whether observations of family gauge bosons by terrestrial experiments are possible or not. We propose an extended version of Sumino's family gauge boson model based on U(3) family symmetry. Then, we can expect the lowest family gauge boson $A_1^1$ with $M \sim 4.3$ TeV.
[ { "created": "Thu, 2 Jul 2015 07:53:05 GMT", "version": "v1" } ]
2015-07-03
[ [ "Koide", "Yoshio", "" ] ]
It is investigated whether observations of family gauge bosons by terrestrial experiments are possible or not. We propose an extended version of Sumino's family gauge boson model based on U(3) family symmetry. Then, we can expect the lowest family gauge boson $A_1^1$ with $M \sim 4.3$ TeV.
2209.09995
Franziska Hagelstein
Vladimir Pascalutsa (JGU), Franziska Hagelstein (JGU & PSI) and Vadim Lensky (JGU)
Theoretical discrepancies in the nucleon spin structure and the hyperfine splitting of muonic hydrogen
10 pages, 5 figures, to appear in the proceedings of the 10th International Workshop on Chiral Dynamics - CD2021, 15-19 November 2021, Beijing, China (Online)
null
null
MITP-22-075
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Two groups, ours (Mainz) and Bochum, have recently been re-evaluating the spin polarizabilities and spin structure functions at low $Q$, using the baryon chiral perturbation theory (B$\chi$PT), the manifestly-covariant counterpart of the heavy-baryon chiral perturbation theory (HB$\chi$PT). Whilst the two groups agre...
[ { "created": "Tue, 20 Sep 2022 21:00:40 GMT", "version": "v1" } ]
2022-09-22
[ [ "Pascalutsa", "Vladimir", "", "JGU" ], [ "Hagelstein", "Franziska", "", "JGU & PSI" ], [ "Lensky", "Vadim", "", "JGU" ] ]
Two groups, ours (Mainz) and Bochum, have recently been re-evaluating the spin polarizabilities and spin structure functions at low $Q$, using the baryon chiral perturbation theory (B$\chi$PT), the manifestly-covariant counterpart of the heavy-baryon chiral perturbation theory (HB$\chi$PT). Whilst the two groups agree ...
2302.12187
Federico von der Pahlen
S. Heinemeyer and F. von der Pahlen
Automated Choice for the Best Renormalization Scheme in BSM Models
44 pages, 14 figures, matches published version, Eur.Phys.J.C 83 (2023) 9, 865
Eur.Phys.J.C 83 (2023) 9, 865
10.1140/epjc/s10052-023-12009-5
IFT--UAM/CSIC--23-012
hep-ph
http://creativecommons.org/licenses/by-nc-sa/4.0/
The explorations of models beyond the Standard Model (BSM) naturally involve scans over the unknown BSM parameters. On the other hand, high precision predictions require calculations at the loop-level and thus a renormalization of (some of) the BSM parameters. Often many choices are possible for the renormalization s...
[ { "created": "Thu, 23 Feb 2023 17:28:26 GMT", "version": "v1" }, { "created": "Wed, 26 Jun 2024 17:45:04 GMT", "version": "v2" } ]
2024-07-01
[ [ "Heinemeyer", "S.", "" ], [ "von der Pahlen", "F.", "" ] ]
The explorations of models beyond the Standard Model (BSM) naturally involve scans over the unknown BSM parameters. On the other hand, high precision predictions require calculations at the loop-level and thus a renormalization of (some of) the BSM parameters. Often many choices are possible for the renormalization sch...
2305.06384
Pablo Mart\'inez-Mirav\'e
Gabriela Barenboim, Pablo Mart\'inez-Mirav\'e, Christoph A. Ternes, Mariam T\'ortola
Neutrino CPT violation in the solar sector
10 pages, 5 figures, 1 table
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
In this paper we place new bounds on CPT violation in the solar neutrino sector analyzing the results from solar experiments and KamLAND. We also discuss the sensitivity of the next-generation experiments DUNE and Hyper-Kamiokande, which will provide accurate measurements of the solar neutrino oscillation parameters....
[ { "created": "Wed, 10 May 2023 18:01:02 GMT", "version": "v1" } ]
2023-05-12
[ [ "Barenboim", "Gabriela", "" ], [ "Martínez-Miravé", "Pablo", "" ], [ "Ternes", "Christoph A.", "" ], [ "Tórtola", "Mariam", "" ] ]
In this paper we place new bounds on CPT violation in the solar neutrino sector analyzing the results from solar experiments and KamLAND. We also discuss the sensitivity of the next-generation experiments DUNE and Hyper-Kamiokande, which will provide accurate measurements of the solar neutrino oscillation parameters. T...
1002.0447
Javier Redondo
Javier Redondo
A Hidden Microwave Background? -- signatures of photon-WISP oscillations in the CMB
4 pages, to appear in the Proceedings of the 5th Patras Workshop on Axions, WIMPs and WISPs
null
null
MPP-2010-17
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The existence and cosmological signatures of a relic background of very weakly interacting sub-eV particles (WISPs), produced by photon-WISP oscillations is reviewed.
[ { "created": "Tue, 2 Feb 2010 10:54:05 GMT", "version": "v1" } ]
2010-02-03
[ [ "Redondo", "Javier", "" ] ]
The existence and cosmological signatures of a relic background of very weakly interacting sub-eV particles (WISPs), produced by photon-WISP oscillations is reviewed.
1005.1441
Vladimir Kopeliovich Benedikt
Vladimir Kopeliovich (Moscow, INR) and Irina Potashnikova (Santa Maria U., Valparaiso)
Critical Examination of the "Field-Theoretical Approach" to the Neutron-Antineutron Oscillations in Nuclei
15 pages, 4 figures; prepared for Eur.Phys.J. C
Eur.Phys.J.C69:591-597,2010
10.1140/epjc/s10052-010-1428-x
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We demonstrate that so called "infrared divergences" which have been discussed in some publications during several years, do not appear within the correct treatment of analytical properties of the transition amplitudes, in particular, of the second order pole structure of the amplitudes describing the $n - \bar n$ tr...
[ { "created": "Mon, 10 May 2010 03:23:08 GMT", "version": "v1" } ]
2014-11-21
[ [ "Kopeliovich", "Vladimir", "", "Moscow, INR" ], [ "Potashnikova", "Irina", "", "Santa Maria\n U., Valparaiso" ] ]
We demonstrate that so called "infrared divergences" which have been discussed in some publications during several years, do not appear within the correct treatment of analytical properties of the transition amplitudes, in particular, of the second order pole structure of the amplitudes describing the $n - \bar n$ tran...
1702.00607
Leonard Lesniak
Leonard Lesniak and Michal Silarski
Latest studies on the reaction e+ e- --> K + K- gamma
11 pages, 11 figures, presented by the first author at the KLOE-2 Workshop on e+ e- collider physics at 1 GeV, Frascati, Italy, October 26-28, 2016, figures 6-10 and tables have been corrected
null
10.1051/epjconf/201816600018
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recent theoretical studies of the e+ e- --> K + K- gamma process are described. Three main reaction mechanisms are considered: the initial state radiation, the final state radiation and the strong interaction between the outgoing K+ K- mesons. The K+ K- effective mass distributions are derived for three different mod...
[ { "created": "Thu, 2 Feb 2017 10:22:17 GMT", "version": "v1" }, { "created": "Tue, 23 Oct 2018 13:14:25 GMT", "version": "v2" } ]
2018-10-24
[ [ "Lesniak", "Leonard", "" ], [ "Silarski", "Michal", "" ] ]
Recent theoretical studies of the e+ e- --> K + K- gamma process are described. Three main reaction mechanisms are considered: the initial state radiation, the final state radiation and the strong interaction between the outgoing K+ K- mesons. The K+ K- effective mass distributions are derived for three different model...
1009.4593
Dorota Sokolowska
I. F. Ginzburg, K.A. Kanishev, M. Krawczyk, D. Sokolowska
Evolution of Universe to the present inert phase
19 pages, 3 figures
Phys.Rev.D82:123533,2010
10.1103/PhysRevD.82.123533
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We assume that current state of the Universe can be described by the Inert Doublet Model, containing two scalar doublets, one of which is responsible for EWSB and masses of particles and the second one having no couplings to fermions and being responsible for dark matter. We consider possible evolutions of the Univer...
[ { "created": "Thu, 23 Sep 2010 12:35:01 GMT", "version": "v1" } ]
2011-02-02
[ [ "Ginzburg", "I. F.", "" ], [ "Kanishev", "K. A.", "" ], [ "Krawczyk", "M.", "" ], [ "Sokolowska", "D.", "" ] ]
We assume that current state of the Universe can be described by the Inert Doublet Model, containing two scalar doublets, one of which is responsible for EWSB and masses of particles and the second one having no couplings to fermions and being responsible for dark matter. We consider possible evolutions of the Universe...