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1807.03805
Yusuf Gunaydin
Ahmet Nuri Akay (TOBB ETU), Yusuf Oguzhan G\"unaydin (Kahrmanmaras Sutcu Imam University), Mehmet Sahin (Usak University), Saleh Sultansoy (TOBB ETU)
Search for Excited $u$ and $d$ Quarks in Dijet Final States at Future $pp$ Colliders
16 pages, 7 figures, 5 tables
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Resonant production of excited $u$ and $d$ quarks at the Future Circular Collider and Super proton-proton Collider have been researched. Dominant jet-jet decay mode has been considered. It is shown that FCC and SppC have great potential for discovery of excited $u$ ($d$) quark: up to 44.1 (36.3) and 58.4 (47.8) TeV m...
[ { "created": "Tue, 10 Jul 2018 18:10:57 GMT", "version": "v1" }, { "created": "Mon, 16 Jul 2018 17:52:03 GMT", "version": "v2" }, { "created": "Wed, 18 Jul 2018 12:44:43 GMT", "version": "v3" }, { "created": "Mon, 22 Oct 2018 18:15:06 GMT", "version": "v4" }, { "c...
2019-02-26
[ [ "Akay", "Ahmet Nuri", "", "TOBB ETU" ], [ "Günaydin", "Yusuf Oguzhan", "", "Kahrmanmaras\n Sutcu Imam University" ], [ "Sahin", "Mehmet", "", "Usak University" ], [ "Sultansoy", "Saleh", "", "TOBB\n ETU" ] ]
Resonant production of excited $u$ and $d$ quarks at the Future Circular Collider and Super proton-proton Collider have been researched. Dominant jet-jet decay mode has been considered. It is shown that FCC and SppC have great potential for discovery of excited $u$ ($d$) quark: up to 44.1 (36.3) and 58.4 (47.8) TeV mas...
2107.07609
Mikhail Ryskin G
M.G. Ryskin
Two photon exchange contribution to small angle $\mu p$ and $ep$ elastic scattering
null
null
null
null
hep-ph
http://creativecommons.org/licenses/by-nc-sa/4.0/
We consider the role of the two-photon corrections to the small angle $\mu p$ and $ep$ elastic scattering and the expected $\sigma(\mu^- p)/\sigma(\mu^+ p)$ ratio.
[ { "created": "Tue, 13 Jul 2021 07:49:34 GMT", "version": "v1" } ]
2021-07-19
[ [ "Ryskin", "M. G.", "" ] ]
We consider the role of the two-photon corrections to the small angle $\mu p$ and $ep$ elastic scattering and the expected $\sigma(\mu^- p)/\sigma(\mu^+ p)$ ratio.
hep-ph/9705220
null
A. J. Baltz (BNL), Mark Strikman (Penn. State U.)
Suppression of Heavy Ion gamma gamma Production of the Higgs by Coulomb Dissociation
5 pages, latex, revtex source, two postscript figures
Phys.Rev. D57 (1998) 548-549
10.1103/PhysRevD.57.548
null
hep-ph
null
Predicted two-photon Higgs production with heavy ions at LHC is shown to be reduced due to the large Coulomb dissociation cross section. Incorporating the effect of dissociation reduces the production of a 100 GeV Higgs by about a factor of three compared to rates in the literature calculated without this effect.
[ { "created": "Fri, 2 May 1997 20:29:14 GMT", "version": "v1" } ]
2009-10-30
[ [ "Baltz", "A. J.", "", "BNL" ], [ "Strikman", "Mark", "", "Penn. State U." ] ]
Predicted two-photon Higgs production with heavy ions at LHC is shown to be reduced due to the large Coulomb dissociation cross section. Incorporating the effect of dissociation reduces the production of a 100 GeV Higgs by about a factor of three compared to rates in the literature calculated without this effect.
hep-ph/9310281
null
S. Dawson and R. Kauffman (BNL)
QCD Corrections to Higgs Boson Production: Non- Leading Terms in the Heavy Quark Limit
27 pages plus 8 figures in uuencoded tar-compressed format, BNL-DK1
Phys.Rev. D49 (1994) 2298-2309
10.1103/PhysRevD.49.2298
null
hep-ph
null
We compute analytic results for the QCD corrections to Higgs boson production via gluon fusion in hadronic collisions in the limit in which the top quark is much heavier than the Higgs boson. The first non-leading corrections of $\O(\alpha_s^3 \mh^2/m_t^2)$ are given and numerical results presented for both LHC and S...
[ { "created": "Wed, 13 Oct 1993 18:12:50 GMT", "version": "v1" } ]
2009-10-22
[ [ "Dawson", "S.", "", "BNL" ], [ "Kauffman", "R.", "", "BNL" ] ]
We compute analytic results for the QCD corrections to Higgs boson production via gluon fusion in hadronic collisions in the limit in which the top quark is much heavier than the Higgs boson. The first non-leading corrections of $\O(\alpha_s^3 \mh^2/m_t^2)$ are given and numerical results presented for both LHC and SSC...
hep-ph/0101304
Nigel Glover
C. Anastasiou, E.W.N. Glover, C. Oleari and M.E. Tejeda-Yeomans
Two-loop QCD corrections to massless quark-gluon scattering
32 pages, LaTeX, JHEP class, typo in Eq.4.6 fixed, typo in Eq 3.2 fixed
Nucl.Phys.B605:486-516,2001
10.1016/S0550-3213(01)00195-X
DCTP/01/04, IPPP/01/02, MADPH-00-1210
hep-ph
null
We present the O(alphas^4) virtual QCD corrections to the scattering process of massless quark qqbar -> gg due to the interference of tree and two-loop amplitudes and to the self-interference of one-loop amplitudes. We work in conventional dimensional regularisation and our results are renormalised in the MSbar schem...
[ { "created": "Fri, 26 Jan 2001 22:19:37 GMT", "version": "v1" }, { "created": "Fri, 7 Dec 2001 12:47:49 GMT", "version": "v2" }, { "created": "Tue, 6 May 2003 09:43:39 GMT", "version": "v3" }, { "created": "Fri, 29 Jun 2007 12:46:40 GMT", "version": "v4" } ]
2008-11-26
[ [ "Anastasiou", "C.", "" ], [ "Glover", "E. W. N.", "" ], [ "Oleari", "C.", "" ], [ "Tejeda-Yeomans", "M. E.", "" ] ]
We present the O(alphas^4) virtual QCD corrections to the scattering process of massless quark qqbar -> gg due to the interference of tree and two-loop amplitudes and to the self-interference of one-loop amplitudes. We work in conventional dimensional regularisation and our results are renormalised in the MSbar scheme....
hep-ph/0103339
Dimitri Melikhov
A. Le Yaouanc, D. Melikhov, V. Morenas, L. Oliver, O. Pene, J.-C. Raynal
Duality in semileptonic inclusive B-decays in potential models: regular versus singular potentials
revtex, 6 pages
Phys.Lett. B517 (2001) 135-141
10.1016/S0370-2693(01)00963-7
null
hep-ph
null
Making use of the nonrelativistic potential model for the description of mesons, and working in the Shifman-Voloshin limit, we compare the integrated rate $\Gamma(B\to X_cl\nu)$ calculated as a sum of the individual decay rates to the quantum-mechanical analog of the OPE. In the case of a potential regular at the ori...
[ { "created": "Fri, 30 Mar 2001 14:46:21 GMT", "version": "v1" } ]
2009-11-07
[ [ "Yaouanc", "A. Le", "" ], [ "Melikhov", "D.", "" ], [ "Morenas", "V.", "" ], [ "Oliver", "L.", "" ], [ "Pene", "O.", "" ], [ "Raynal", "J. -C.", "" ] ]
Making use of the nonrelativistic potential model for the description of mesons, and working in the Shifman-Voloshin limit, we compare the integrated rate $\Gamma(B\to X_cl\nu)$ calculated as a sum of the individual decay rates to the quantum-mechanical analog of the OPE. In the case of a potential regular at the origi...
hep-ph/0406032
Robert Shrock
Thomas Appelquist, Maurizio Piai, and Robert Shrock
Quark Dipole Operators in Extended Technicolor Models
9 pages, latex
Phys.Lett. B595 (2004) 442-452
10.1016/j.physletb.2004.06.066
null
hep-ph hep-ex
null
We study diagonal and transition quark dipole operators in a class of extended technicolor (ETC) models, taking account of the multiscale nature of the ETC gauge symmetry breaking and of the mixing among ETC interaction eigenstates. Because of this mixing, terms involving the lowest ETC scale can play an important ro...
[ { "created": "Wed, 2 Jun 2004 20:43:22 GMT", "version": "v1" }, { "created": "Fri, 11 Jun 2004 17:17:04 GMT", "version": "v2" } ]
2009-11-10
[ [ "Appelquist", "Thomas", "" ], [ "Piai", "Maurizio", "" ], [ "Shrock", "Robert", "" ] ]
We study diagonal and transition quark dipole operators in a class of extended technicolor (ETC) models, taking account of the multiscale nature of the ETC gauge symmetry breaking and of the mixing among ETC interaction eigenstates. Because of this mixing, terms involving the lowest ETC scale can play an important role...
hep-ph/0001179
Sacha Davidson
Sacha Davidson, Steen Hannestad, Georg Raffelt
Updated Bounds on Milli-Charged Particles
15 pages, 1 figure, minor changes, matches version to be published in JHEP
JHEP 0005:003,2000
10.1088/1126-6708/2000/05/003
CERN-TH/99-384
hep-ph
null
We update the bounds on fermions with electric charge $\epsilon e$ and mass $m_\epsilon$. For $m_\epsilon\lsim m_e$ we find $10^{-15}\lsim\epsilon<1$ is excluded by laboratory experiments, astrophysics and cosmology. For larger masses, the limits are less restrictive and depend on $m_\epsilon$. For milli-charged neut...
[ { "created": "Tue, 18 Jan 2000 11:07:06 GMT", "version": "v1" }, { "created": "Tue, 2 May 2000 07:52:01 GMT", "version": "v2" } ]
2010-04-06
[ [ "Davidson", "Sacha", "" ], [ "Hannestad", "Steen", "" ], [ "Raffelt", "Georg", "" ] ]
We update the bounds on fermions with electric charge $\epsilon e$ and mass $m_\epsilon$. For $m_\epsilon\lsim m_e$ we find $10^{-15}\lsim\epsilon<1$ is excluded by laboratory experiments, astrophysics and cosmology. For larger masses, the limits are less restrictive and depend on $m_\epsilon$. For milli-charged neutri...
1712.02132
Shigeru Odaka
Shigeru Odaka and Yoshimasa Kurihara
GR@PPA 2.9: radiation matching for simulating photon production processes in hadron collisions
11 pages
null
10.1016/j.cpc.2018.05.018
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We release an event generator package, GR@PPA 2.9, for simulating the direct (single) photon and diphoton (double photon) production in hadron collisions. The included programs were used in our previous studies, in which we have explicitly shown large contributions from parton-associated processes. The programs consi...
[ { "created": "Wed, 6 Dec 2017 11:15:10 GMT", "version": "v1" }, { "created": "Tue, 19 Jun 2018 02:42:01 GMT", "version": "v2" } ]
2018-08-15
[ [ "Odaka", "Shigeru", "" ], [ "Kurihara", "Yoshimasa", "" ] ]
We release an event generator package, GR@PPA 2.9, for simulating the direct (single) photon and diphoton (double photon) production in hadron collisions. The included programs were used in our previous studies, in which we have explicitly shown large contributions from parton-associated processes. The programs consist...
hep-ph/0207091
A. Onishchenko
A.Onishchenko, O.Veretin
Special case of sunset: reduction and epsilon-expansion
LaTeX, 13 pages, 1 figure
Phys.Atom.Nucl. 68 (2005) 1405-1413; Yad.Fiz. 68 (2005) 1461-1469
10.1134/1.2011500
TTP02-15
hep-ph
null
We consider two loop sunset diagrams with two mass scales m and M at the threshold and pseudotreshold that cannot be treated by earlier published formula. The complete reduction to master integrals is given. The master integrals are evaluated as series in ratio m/M and in epsilon with the help of differential equatio...
[ { "created": "Fri, 5 Jul 2002 17:02:07 GMT", "version": "v1" } ]
2015-06-25
[ [ "Onishchenko", "A.", "" ], [ "Veretin", "O.", "" ] ]
We consider two loop sunset diagrams with two mass scales m and M at the threshold and pseudotreshold that cannot be treated by earlier published formula. The complete reduction to master integrals is given. The master integrals are evaluated as series in ratio m/M and in epsilon with the help of differential equation ...
hep-ph/0202148
Miranda van Iersel
M. van Iersel, B.L.G. Bakker, and F. Pijlman
Relativistic bound-state calculations in Light Front Dynamics
3 pages, proceedings of the Light Cone Meeting Trento 2001, to be published in Nucl. Phys. B - Proceedings Supplements
Nucl.Phys.Proc.Suppl. 108 (2002) 270-272
10.1016/S0920-5632(02)01343-9
null
hep-ph
null
We calculated bound states in the quantum field theoretical approach. Using the Wick-Cutkosky model and an extended version of this model (in which a particle with finite mass is exchanged) we have calculated the bound states in the scalar case.
[ { "created": "Fri, 15 Feb 2002 13:31:46 GMT", "version": "v1" } ]
2009-11-07
[ [ "van Iersel", "M.", "" ], [ "Bakker", "B. L. G.", "" ], [ "Pijlman", "F.", "" ] ]
We calculated bound states in the quantum field theoretical approach. Using the Wick-Cutkosky model and an extended version of this model (in which a particle with finite mass is exchanged) we have calculated the bound states in the scalar case.
1609.06113
Hiroyuki Ishida
Takehiko Asaka and Hiroyuki Ishida
Lepton number violation by heavy Majorana neutrino in $B$ decays
11 pages, 2 figures (Figure 2 is revised), v2: version to appear in Physics Letters B
null
10.1016/j.physletb.2016.10.070
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Heavy Majorana neutrinos are predicted in addition to ordinary active neutrinos in the models with the seesaw mechanism. We investigate the lepton number violation (LNV) in $B$ decays induced by such a heavy neutrino $N$ with GeV-scale mass. Especially, we consider the decay channel $B^+ \to \mu^+ \, N \to \mu^+ \mu^...
[ { "created": "Tue, 20 Sep 2016 11:40:28 GMT", "version": "v1" }, { "created": "Thu, 10 Nov 2016 06:37:09 GMT", "version": "v2" } ]
2016-11-11
[ [ "Asaka", "Takehiko", "" ], [ "Ishida", "Hiroyuki", "" ] ]
Heavy Majorana neutrinos are predicted in addition to ordinary active neutrinos in the models with the seesaw mechanism. We investigate the lepton number violation (LNV) in $B$ decays induced by such a heavy neutrino $N$ with GeV-scale mass. Especially, we consider the decay channel $B^+ \to \mu^+ \, N \to \mu^+ \mu^+ ...
1001.1378
Javier L. Albacete
Javier L. Albacete and Cyrille Marquet
Single Inclusive Hadron Production at RHIC and the LHC from the Color Glass Condensate
Abstract and 3 figures modified
Phys.Lett.B687:174-179,2010
10.1016/j.physletb.2010.02.073
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Using the unintegrated gluon distribution obtained from numerical simulations of the Balitsky-Kovchegov equation with running coupling, we obtain a very good description of RHIC data on single inclusive hadron production at forward rapidities in both p+p and d+Au collisions. No K-factors are needed for charged hadron...
[ { "created": "Fri, 8 Jan 2010 22:58:32 GMT", "version": "v1" }, { "created": "Thu, 28 Jan 2010 08:13:08 GMT", "version": "v2" } ]
2010-05-28
[ [ "Albacete", "Javier L.", "" ], [ "Marquet", "Cyrille", "" ] ]
Using the unintegrated gluon distribution obtained from numerical simulations of the Balitsky-Kovchegov equation with running coupling, we obtain a very good description of RHIC data on single inclusive hadron production at forward rapidities in both p+p and d+Au collisions. No K-factors are needed for charged hadrons,...
1003.4937
Jose Rodriguez-Quintero
M.E. G\'omez, S. Lola, P. Naranjo, J. Rodr\'iguez-Quintero
Suppression of Lepton Flavour Violation from Quantum Corrections above $M_{GUT}$
15 pages, 5 figs.
JHEP 1006:053,2010
10.1007/JHEP06(2010)053
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the predictions for sfermion masses and Lepton Flavour Violation (LFV) for the WMAP preferred parameter space in $b-\tau$ Yukawa-unified models with massive neutrinos. A soft term structure as predicted by an Abelian flavour symmetry combined with SU(5) RGEs for scales above $M_{GUT}$, results to an efficien...
[ { "created": "Thu, 25 Mar 2010 15:40:15 GMT", "version": "v1" } ]
2015-03-13
[ [ "Gómez", "M. E.", "" ], [ "Lola", "S.", "" ], [ "Naranjo", "P.", "" ], [ "Rodríguez-Quintero", "J.", "" ] ]
We study the predictions for sfermion masses and Lepton Flavour Violation (LFV) for the WMAP preferred parameter space in $b-\tau$ Yukawa-unified models with massive neutrinos. A soft term structure as predicted by an Abelian flavour symmetry combined with SU(5) RGEs for scales above $M_{GUT}$, results to an efficient ...
hep-ph/0310135
Antonio Pineda
Antonio Pineda
Is there a linear potential at short distances?
6 pages, 5 figures, Invited talk given at QCD03, 2-9 July, Montpellier, France
null
10.1016/j.nuclphysbps.2004.04.163
UB-ECM-PF 03/25
hep-ph hep-lat hep-th
null
We argue that the lattice data of the static potential can be explained by perturbation theory up to energies of the order of 1 GeV once renormalons effects are taken into account
[ { "created": "Fri, 10 Oct 2003 16:29:03 GMT", "version": "v1" } ]
2009-11-10
[ [ "Pineda", "Antonio", "" ] ]
We argue that the lattice data of the static potential can be explained by perturbation theory up to energies of the order of 1 GeV once renormalons effects are taken into account
hep-ph/0304288
Ying Li
Ying Li, Cai-Dian Lu
Study of pure annihilation type decays $B \to D_s^{*} K$
14 pages, 1 figure
J.Phys.G29:2115-2124,2003
10.1088/0954-3899/29/9/307
null
hep-ph
null
In this work, we calculate the rare decays $B^0 \to D_s^{*-} K^+$ and $B^+ \to D_s^{*+} \bar{K}^0$ in perturbative QCD approach with Sudakov resummation. We give the branching ratio of $10^{-5}$ for $B^0 \to D_s^{*-}K^+$, which will be tested soon in $B$ factories. The decay $B^+ \to D_s^{*+} \bar{K}^0$ has a very ...
[ { "created": "Wed, 30 Apr 2003 12:26:05 GMT", "version": "v1" } ]
2008-11-26
[ [ "Li", "Ying", "" ], [ "Lu", "Cai-Dian", "" ] ]
In this work, we calculate the rare decays $B^0 \to D_s^{*-} K^+$ and $B^+ \to D_s^{*+} \bar{K}^0$ in perturbative QCD approach with Sudakov resummation. We give the branching ratio of $10^{-5}$ for $B^0 \to D_s^{*-}K^+$, which will be tested soon in $B$ factories. The decay $B^+ \to D_s^{*+} \bar{K}^0$ has a very smal...
1308.6039
Chilong Lin
Chilong Lin
Theoretical Origin of CP Violation in a Special FCNC-Free 2HDM with $S_N$ Symmetries
6 pages
null
null
NMNS/HEPPH-1301
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this manuscript, a way solves the FCNC problem in 2HDM radically and leads to CP violation explicitly is demonstrated. The derivation starts from a most general $3 \times 3$ mass matrix $M$ containing eighteen parameters, which applies to all fermion types, and then reduces the number of parameters down to five wi...
[ { "created": "Wed, 28 Aug 2013 03:05:08 GMT", "version": "v1" }, { "created": "Sat, 15 Sep 2018 10:59:39 GMT", "version": "v2" }, { "created": "Wed, 7 Nov 2018 07:02:07 GMT", "version": "v3" } ]
2018-11-08
[ [ "Lin", "Chilong", "" ] ]
In this manuscript, a way solves the FCNC problem in 2HDM radically and leads to CP violation explicitly is demonstrated. The derivation starts from a most general $3 \times 3$ mass matrix $M$ containing eighteen parameters, which applies to all fermion types, and then reduces the number of parameters down to five with...
hep-ph/9508347
Marco Stratmann
M. Gluck, E. Reya, M. Stratmann (Univ. Dortmund), W. Vogelsang (Rutherford)
Next-to-Leading Order Radiative Parton Model Analysis of Polarized Deep Inelastic Scattering
34 pages, LaTeX, 9 figures; Only quantitative results of the original paper have been changed for two reasons: (1) small errors in the calculation of the NLO anom. dimensions (ref. 11); (2) inclusion of new data. Previous LO results (ref. 1) have also been updated
Phys.Rev. D53 (1996) 4775-4786
10.1103/PhysRevD.53.4775
DO-TH 95/13, RAL-TR-95-042
hep-ph
null
A next-to-leading order QCD analysis of spin asymmetries and structure functions in polarized deep inelastic lepton nucleon scattering is presented within the framework of the radiative parton model. A consistent NLO formulation of the $Q^2$-evolution of polarized parton distributions yields two sets of plausible NLO...
[ { "created": "Tue, 22 Aug 1995 17:16:01 GMT", "version": "v1" }, { "created": "Tue, 9 Jan 1996 16:46:04 GMT", "version": "v2" } ]
2009-10-28
[ [ "Gluck", "M.", "", "Univ. Dortmund" ], [ "Reya", "E.", "", "Univ. Dortmund" ], [ "Stratmann", "M.", "", "Univ. Dortmund" ], [ "Vogelsang", "W.", "", "Rutherford" ] ]
A next-to-leading order QCD analysis of spin asymmetries and structure functions in polarized deep inelastic lepton nucleon scattering is presented within the framework of the radiative parton model. A consistent NLO formulation of the $Q^2$-evolution of polarized parton distributions yields two sets of plausible NLO s...
1505.00630
S. Weinzierl
Stefan Weinzierl
Precision on the top mass
9 pages, talk presented at the 50th Rencontres de Moriond EW 2015
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this talk I will focus on theoretical issues related to high precision determinations of the top mass. Several mass definitions are reviewed and their respective advantages and disadvantages are discussed. Precision determinations of the top mass will require a short-distance mass definition. I will summarise curr...
[ { "created": "Mon, 4 May 2015 13:41:03 GMT", "version": "v1" } ]
2015-05-05
[ [ "Weinzierl", "Stefan", "" ] ]
In this talk I will focus on theoretical issues related to high precision determinations of the top mass. Several mass definitions are reviewed and their respective advantages and disadvantages are discussed. Precision determinations of the top mass will require a short-distance mass definition. I will summarise curren...
1609.01787
Melina Gomez Bock
R. Espinosa-Casta\~neda, F.V. Flores-Baez, M. G\'omez-Bock and M. Mondrag\'on
Lepton flavor violation in an extended MSSM
8 pages, 1 figure, To be published in Journal of Physics Conference Series (IOP). Joint Proceedings of the XV Mexican Workshop on Particles and Fields & the XXX Annual Meeting of the Division of Particles and Fields of the Mexican Physical Society
null
10.1088/1742-6596/761/1/012062
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work we explore a lepton flavor violation effect induced at one loop for a flavor structure in an extended minimal standard supersymmetric model, considering an ansatz for the trilinear term. In particular we find a finite expression which will show the impact of this phenomena in the $h\to \mu \tau$ decay, p...
[ { "created": "Tue, 6 Sep 2016 23:49:14 GMT", "version": "v1" } ]
2016-11-23
[ [ "Espinosa-Castañeda", "R.", "" ], [ "Flores-Baez", "F. V.", "" ], [ "Gómez-Bock", "M.", "" ], [ "Mondragón", "M.", "" ] ]
In this work we explore a lepton flavor violation effect induced at one loop for a flavor structure in an extended minimal standard supersymmetric model, considering an ansatz for the trilinear term. In particular we find a finite expression which will show the impact of this phenomena in the $h\to \mu \tau$ decay, pro...
hep-ph/9907233
TingLiang Zhuang
T.-L. Zhuang, X. -J. Wang and M.-L. Yan
The Radiative Decay of Vector Mesons
Revtex file, 12 pages, 9 eps figures
Phys.Rev. D62 (2000) 053007
10.1103/PhysRevD.62.053007
null
hep-ph
null
In this paper, radiative decays $\rho^0 \to \pi^+\pi^-\gamma, \pi^0\pi^0\gamma$ ,$\phi \to K^+K^-\gamma, K^0 \bar{K^0}\gamma$ are studied systematically in the U(3)$_L\timesU(3)_R$ chiral theory of mesons. The theoretical differential spectrum with respect to photon energy and branch ratio for $\rho^0 \to \pi^+\pi^-\...
[ { "created": "Mon, 5 Jul 1999 14:17:06 GMT", "version": "v1" }, { "created": "Sat, 29 Jan 2000 09:37:07 GMT", "version": "v2" }, { "created": "Thu, 24 Feb 2000 05:29:39 GMT", "version": "v3" } ]
2009-10-31
[ [ "Zhuang", "T. -L.", "" ], [ "Wang", "X. -J.", "" ], [ "Yan", "M. -L.", "" ] ]
In this paper, radiative decays $\rho^0 \to \pi^+\pi^-\gamma, \pi^0\pi^0\gamma$ ,$\phi \to K^+K^-\gamma, K^0 \bar{K^0}\gamma$ are studied systematically in the U(3)$_L\timesU(3)_R$ chiral theory of mesons. The theoretical differential spectrum with respect to photon energy and branch ratio for $\rho^0 \to \pi^+\pi^-\ga...
1411.4557
Yonatan Kahn
Yonatan Kahn
Unbinned halo-independent methods for emerging dark matter signals
11 pages, 8 figures, to appear in the proceedings of the Interplay between Particle and Astroparticle Physics (IPA 2014) workshop, 18-22 August 2014, Queen Mary University of London
null
null
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Halo-independent methods for analyzing direct detection experiments can provide robust results while making no assumptions about the dark matter halo in our galaxy. We extend existing methods to the case of unbinned data, which is especially well suited to emerging dark matter signals with only a few events in a near...
[ { "created": "Mon, 17 Nov 2014 17:21:58 GMT", "version": "v1" } ]
2014-11-18
[ [ "Kahn", "Yonatan", "" ] ]
Halo-independent methods for analyzing direct detection experiments can provide robust results while making no assumptions about the dark matter halo in our galaxy. We extend existing methods to the case of unbinned data, which is especially well suited to emerging dark matter signals with only a few events in a nearly...
2110.12339
Jin Hu
Jin Hu
Relativistic kinetic equation for dense gases from quantum field theory
null
null
null
null
hep-ph
http://creativecommons.org/publicdomain/zero/1.0/
We derive the relativistic kinetic equation and collision kernel for dense gases of spin $0$ particles from quantum field theory based on the Wigner-function formalism. The formalism developed by Degroot can be used as an effective way for density expansion of the kinetic equation. The kinetic equation obtained in th...
[ { "created": "Sun, 24 Oct 2021 03:10:19 GMT", "version": "v1" } ]
2021-10-26
[ [ "Hu", "Jin", "" ] ]
We derive the relativistic kinetic equation and collision kernel for dense gases of spin $0$ particles from quantum field theory based on the Wigner-function formalism. The formalism developed by Degroot can be used as an effective way for density expansion of the kinetic equation. The kinetic equation obtained in the ...
1508.06540
Marc Scott
Nick Evans, Peter Jones, Marc Scott
Soft Walls in Dynamic AdS/QCD and the Techni-dilaton
10 pages, 6 figures,
Phys. Rev. D 92, 106003 (2015)
10.1103/PhysRevD.92.106003
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Dynamic AdS/QCD is a modification of AdS/QCD that includes the running of the anomalous dimension of the q-bar q quark bilinear and in which the generation of the constituent quark mass plays the role of an IR wall. The model allows one to move away smoothly from the controlled spectrum of the N=2 super Yang-Mills th...
[ { "created": "Wed, 26 Aug 2015 15:50:09 GMT", "version": "v1" } ]
2015-11-25
[ [ "Evans", "Nick", "" ], [ "Jones", "Peter", "" ], [ "Scott", "Marc", "" ] ]
Dynamic AdS/QCD is a modification of AdS/QCD that includes the running of the anomalous dimension of the q-bar q quark bilinear and in which the generation of the constituent quark mass plays the role of an IR wall. The model allows one to move away smoothly from the controlled spectrum of the N=2 super Yang-Mills theo...
2101.01921
Teruyuki Kitabayashi
Teruyuki Kitabayashi
Primordial black holes and scotogenic dark matter
29 pages, 10 figures
International Journal of Modern Physics A, Vol. 36, No. 18, 2150139 (2021)
10.1142/S0217751X21501396
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We study the effect of the scotogenic dark matter on the primordial black holes (PBHs) and vice versa. We show that if the PBHs evaporate in the radiation dominant era, the upper limit of the initial mass of the PBHs $M_{\rm in}$ should be constrained as $10^4 \lesssim M_{\rm in}/M_{\rm Pl} \lesssim 10^{10}$ for $\ma...
[ { "created": "Wed, 6 Jan 2021 08:39:50 GMT", "version": "v1" }, { "created": "Thu, 7 Jan 2021 02:31:00 GMT", "version": "v2" }, { "created": "Sun, 18 Apr 2021 05:35:19 GMT", "version": "v3" }, { "created": "Tue, 13 Jul 2021 01:28:02 GMT", "version": "v4" }, { "cre...
2021-07-29
[ [ "Kitabayashi", "Teruyuki", "" ] ]
We study the effect of the scotogenic dark matter on the primordial black holes (PBHs) and vice versa. We show that if the PBHs evaporate in the radiation dominant era, the upper limit of the initial mass of the PBHs $M_{\rm in}$ should be constrained as $10^4 \lesssim M_{\rm in}/M_{\rm Pl} \lesssim 10^{10}$ for $\math...
1207.0493
Spencer Chang
Spencer Chang, Christopher A. Newby, Nirmal Raj, Chaowaroj Wanotayaroj
Revisiting Theories with Enhanced Higgs Couplings to Weak Gauge Bosons
9 pages, 9 figures, revtex4; v2, references added
Phys.Rev. D86 (2012) 095015
10.1103/PhysRevD.86.095015
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Based on recent LHC Higgs analyses and in anticipation of future results we revisit theories where Higgs bosons can couple to weak gauge bosons with enhanced strength relative to the Standard Model value. Specifically, we look at the Georgi-Machacek model and its generalizations where higher "spin" representations of...
[ { "created": "Mon, 2 Jul 2012 20:00:00 GMT", "version": "v1" }, { "created": "Fri, 27 Jul 2012 00:08:07 GMT", "version": "v2" } ]
2013-03-11
[ [ "Chang", "Spencer", "" ], [ "Newby", "Christopher A.", "" ], [ "Raj", "Nirmal", "" ], [ "Wanotayaroj", "Chaowaroj", "" ] ]
Based on recent LHC Higgs analyses and in anticipation of future results we revisit theories where Higgs bosons can couple to weak gauge bosons with enhanced strength relative to the Standard Model value. Specifically, we look at the Georgi-Machacek model and its generalizations where higher "spin" representations of S...
1407.7203
Sarbani Majumder
Sanjay K. Ghosh (1), Anirban Lahiri (2), Sarbani Majumder (3), Munshi G. Mustafa (3), Sibaji Raha (1), Rajarshi Ray (1) ((1) Bose Institute, Kolkata, India. (2) Tata Institute of Fundamental Research, Mumbai, India. (3) Saha Institute of Nuclear Physics, Kolkata, India.)
Quark Number Susceptibility : Revisited with Fluctuation-Dissipation Theorem in mean field theories
null
Phys. Rev. D 90, 054030 (2014)
10.1103/PhysRevD.90.054030
TIFR/TH/14-21 ; SINP/TNP/2014/05
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Fluctuations of conserved quantum numbers are associated with the corresponding susceptibilities because of the symmetry of the system. The underlying fact is that these fluctuations as defined through the static correlators become identical to the direct calculation of these susceptibilities defined through the ther...
[ { "created": "Sun, 27 Jul 2014 09:35:46 GMT", "version": "v1" }, { "created": "Sat, 4 Oct 2014 04:35:48 GMT", "version": "v2" } ]
2014-10-07
[ [ "Ghosh", "Sanjay K.", "" ], [ "Lahiri", "Anirban", "" ], [ "Majumder", "Sarbani", "" ], [ "Mustafa", "Munshi G.", "" ], [ "Raha", "Sibaji", "" ], [ "Ray", "Rajarshi", "" ] ]
Fluctuations of conserved quantum numbers are associated with the corresponding susceptibilities because of the symmetry of the system. The underlying fact is that these fluctuations as defined through the static correlators become identical to the direct calculation of these susceptibilities defined through the thermo...
hep-ph/9904347
Marcos Donizeti Rodrigues Sampaio
O.A.Battistel, G.Dallabona, M.C.Nemes (UFMG-Brazil) and B.Hiller (University of Coimbra-Portugal)
Anomalous pion decay revisited
7 pages, LaTeX, no figures
null
null
null
hep-ph
null
An implicit four dimensional regularization is applied to calculate the axial-vector-vector anomalous amplitude. The present technique always complies with results of Dimensional Regularization and can be easily applied to processes involving odd numbers of $\gamma_5$ matrices. This is illustrated explicitely in the ...
[ { "created": "Thu, 15 Apr 1999 15:00:19 GMT", "version": "v1" } ]
2007-05-23
[ [ "Battistel", "O. A.", "", "UFMG-Brazil" ], [ "Dallabona", "G.", "", "UFMG-Brazil" ], [ "Nemes", "M. C.", "", "UFMG-Brazil" ], [ "Hiller", "B.", "", "University of Coimbra-Portugal" ] ]
An implicit four dimensional regularization is applied to calculate the axial-vector-vector anomalous amplitude. The present technique always complies with results of Dimensional Regularization and can be easily applied to processes involving odd numbers of $\gamma_5$ matrices. This is illustrated explicitely in the ex...
2407.09593
Ben Stefanek
Ben A. Stefanek
Non-universal probes of composite Higgs models: New bounds and prospects for FCC-ee
References and discussion of FCC theory uncertainties added. Version submitted for publication
null
null
KCL-PH-TH/2024-43
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the leading loop-level phenomenology of composite Higgs models via the effective field theory of a strongly interacting light Higgs and top quark (SILH+TQ). We systematically analyze the renormalization group evolution (RGE) of tree-generated operators in the SILH+TQ scenario, finding large mixings of flavor...
[ { "created": "Fri, 12 Jul 2024 18:00:00 GMT", "version": "v1" }, { "created": "Mon, 22 Jul 2024 16:14:29 GMT", "version": "v2" } ]
2024-07-23
[ [ "Stefanek", "Ben A.", "" ] ]
We study the leading loop-level phenomenology of composite Higgs models via the effective field theory of a strongly interacting light Higgs and top quark (SILH+TQ). We systematically analyze the renormalization group evolution (RGE) of tree-generated operators in the SILH+TQ scenario, finding large mixings of flavor n...
2309.13106
Yu-Dai Tsai
Yu-Dai Tsai, Davide Farnocchia, Marco Micheli, Sunny Vagnozzi, Luca Visinelli
Constraints on fifth forces and ultralight dark matter from OSIRIS-REx target asteroid Bennu
1 figure, 7 pages plus references
Communications Physics - Nature (2024)
null
UCI-HEP-TR-2023-04; FERMILAB-PUB-23-538-T-V; CA21106; CA21136
hep-ph astro-ph.CO gr-qc hep-ex hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Using the OSIRIS-REx mission and ground-based tracking data for the asteroid Bennu, we derive new constraints on fifth forces and ultralight dark matter. The bounds we obtain are strongest for mediator masses $m \sim 10^{-18} - 10^{-17}\,{\rm eV}$, where we currently achieve the tightest bounds. Our limits can be tra...
[ { "created": "Fri, 22 Sep 2023 18:00:00 GMT", "version": "v1" } ]
2024-08-15
[ [ "Tsai", "Yu-Dai", "" ], [ "Farnocchia", "Davide", "" ], [ "Micheli", "Marco", "" ], [ "Vagnozzi", "Sunny", "" ], [ "Visinelli", "Luca", "" ] ]
Using the OSIRIS-REx mission and ground-based tracking data for the asteroid Bennu, we derive new constraints on fifth forces and ultralight dark matter. The bounds we obtain are strongest for mediator masses $m \sim 10^{-18} - 10^{-17}\,{\rm eV}$, where we currently achieve the tightest bounds. Our limits can be trans...
0908.3116
Alfonso Zerwekh
Alfonso R. Zerwekh
Axigluon Couplings in the Presence of Extra Color-Octet Spin-One Fields
null
Eur.Phys.J.C65:543-546,2010
10.1140/epjc/s10052-009-1201-1
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, we study how the interaction of the axigluon with quarks is modified when we introduce new color-octet spin-one fields in a chiral color model. We show that in this case the strength of this interaction is not completely determined by the gauge symmetry any more and can be significantly weaker than the...
[ { "created": "Fri, 21 Aug 2009 12:46:51 GMT", "version": "v1" } ]
2010-02-11
[ [ "Zerwekh", "Alfonso R.", "" ] ]
In this paper, we study how the interaction of the axigluon with quarks is modified when we introduce new color-octet spin-one fields in a chiral color model. We show that in this case the strength of this interaction is not completely determined by the gauge symmetry any more and can be significantly weaker than the o...
hep-ph/0008037
Thomas G. Rizzo
Thomas G. Rizzo
New Physics Beyond the Standard Model at $\gamma \gamma$ Colliders
8 pages, 6 figs, LaTex, Talk Given at the International Workshop on High Energy Photon Colliders, DESY Hamburg, June 14-17, 2000
Nucl.Instrum.Meth. A472 (2001) 37-42
10.1016/S0168-9002(01)01160-3
SLAC-PUB-8544
hep-ph
null
The complementarity of $e^+e^-$ and $\gamma \gamma$ colliders to discover and explore new physics beyond the Standard Model(SM) is discussed. After briefly surveying a number of various new physics scenarios we concentrate in detail on signatures for Large Extra Dimensions via the process $\gamma \gamma \to WW$.
[ { "created": "Thu, 3 Aug 2000 22:01:12 GMT", "version": "v1" } ]
2009-10-31
[ [ "Rizzo", "Thomas G.", "" ] ]
The complementarity of $e^+e^-$ and $\gamma \gamma$ colliders to discover and explore new physics beyond the Standard Model(SM) is discussed. After briefly surveying a number of various new physics scenarios we concentrate in detail on signatures for Large Extra Dimensions via the process $\gamma \gamma \to WW$.
1602.06363
Archil Kobakhidze
Archil Kobakhidze
Solving the Strong CP Problem with High-Colour Quarks and Composite Axion
10 pages
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
I propose a new axionic solution to the strong CP problem which involves a hypothetical vector-like quark(s) in a high-colour representation of the conventional QCD. There are two distinct scenarios. If the current mass of the exotic quark is zero, the strong CP phase can be trivially rotated away. The high-colour qu...
[ { "created": "Sat, 20 Feb 2016 04:33:42 GMT", "version": "v1" } ]
2016-02-23
[ [ "Kobakhidze", "Archil", "" ] ]
I propose a new axionic solution to the strong CP problem which involves a hypothetical vector-like quark(s) in a high-colour representation of the conventional QCD. There are two distinct scenarios. If the current mass of the exotic quark is zero, the strong CP phase can be trivially rotated away. The high-colour quar...
2402.12228
Selym Villalba-Chavez Dr.
A. Eckey, A. Golub, F. C. Salgado, S. Villalba-Ch\'avez, A. B. Voitkiv, M. Zepf, C. M\"uller
Impact of laser focussing and radiation reaction on particle spectra from nonlinear Breit-Wheeler pair production in the nonperturbative regime
11 pages, 7 figures
null
null
null
hep-ph physics.atom-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Near-future experiments intend to detect strong-field Breit-Wheeler pair creation from the collision between bremsstrahlung bursts containing GeV-$\gamma$ quanta and high-intensity laser pulses. In this theoretical study, we investigate the influence of laser focusing, radiation reaction and a broad bremsstrahlung $\...
[ { "created": "Mon, 19 Feb 2024 15:35:01 GMT", "version": "v1" } ]
2024-02-20
[ [ "Eckey", "A.", "" ], [ "Golub", "A.", "" ], [ "Salgado", "F. C.", "" ], [ "Villalba-Chávez", "S.", "" ], [ "Voitkiv", "A. B.", "" ], [ "Zepf", "M.", "" ], [ "Müller", "C.", "" ] ]
Near-future experiments intend to detect strong-field Breit-Wheeler pair creation from the collision between bremsstrahlung bursts containing GeV-$\gamma$ quanta and high-intensity laser pulses. In this theoretical study, we investigate the influence of laser focusing, radiation reaction and a broad bremsstrahlung $\ga...
0911.0252
Roman Nikolaevich Lee
R.N. Lee
Space-time dimensionality D as complex variable: calculating loop integrals using dimensional recurrence relation and analytical properties with respect to D
Several misprints corrected
Nucl.Phys.B830:474-492,2010
10.1016/j.nuclphysb.2009.12.025
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show that dimensional recurrence relation and analytical properties of the loop integrals as functions of complex variable $\mathcal{D}$ (space-time dimensionality) provide a regular way to derive analytical representations of loop integrals. The representations derived have a form of exponentially converging sums...
[ { "created": "Mon, 2 Nov 2009 08:02:11 GMT", "version": "v1" }, { "created": "Wed, 18 Nov 2009 12:17:14 GMT", "version": "v2" } ]
2010-02-19
[ [ "Lee", "R. N.", "" ] ]
We show that dimensional recurrence relation and analytical properties of the loop integrals as functions of complex variable $\mathcal{D}$ (space-time dimensionality) provide a regular way to derive analytical representations of loop integrals. The representations derived have a form of exponentially converging sums. ...
2209.06793
Kousik Loho
Baradhwaj Coleppa, Kousik Loho, Sujay Shil
Dark Sector extensions of the Littlest Seesaw in the presence of Primordial Black Holes
14 pages, 8 figures, accepted in JCAP
null
10.1088/1475-7516/2023/06/027
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
The Littlest Seesaw model is a very well motivated dark matter model. Here we consider an extension of that model with an additional scalar and an additional fermionic particle under the freeze-in scenario. Formation of black hole of a certain mass range at primordial times can act as an alternate production mechanis...
[ { "created": "Wed, 14 Sep 2022 17:22:05 GMT", "version": "v1" }, { "created": "Tue, 30 May 2023 07:48:53 GMT", "version": "v2" } ]
2023-06-28
[ [ "Coleppa", "Baradhwaj", "" ], [ "Loho", "Kousik", "" ], [ "Shil", "Sujay", "" ] ]
The Littlest Seesaw model is a very well motivated dark matter model. Here we consider an extension of that model with an additional scalar and an additional fermionic particle under the freeze-in scenario. Formation of black hole of a certain mass range at primordial times can act as an alternate production mechanism ...
hep-ph/9807209
Takashi Nasuno
Jiro Kodaira (Hiroshima Univ.), Takashi Nasuno (Hiroshima Univ.), Stephen Parke (Fermi National Accelerator Laboratory)
QCD Corrections to Spin Correlations in Top Quark Production at Lepton Colliders
32 pages, REVTeX, 13 Postscript figures, psfig.sty and here.sty are required. Several references added, Tables 3, 4 and 5 are changed
Phys.Rev.D59:014023,1998
10.1103/PhysRevD.59.014023
null
hep-ph
null
Spin correlations, using a generic spin basis, are investigated to leading order in QCD for top quark production at lepton colliders. Even though, these radiative corrections induce an anomalous gamma/Z magnetic moment for the top quarks and allow for single, real gluon emission, their effects on the top quark spin o...
[ { "created": "Wed, 1 Jul 1998 13:42:48 GMT", "version": "v1" }, { "created": "Thu, 8 Oct 1998 03:18:30 GMT", "version": "v2" } ]
2010-02-03
[ [ "Kodaira", "Jiro", "", "Hiroshima Univ." ], [ "Nasuno", "Takashi", "", "Hiroshima Univ." ], [ "Parke", "Stephen", "", "Fermi National Accelerator Laboratory" ] ]
Spin correlations, using a generic spin basis, are investigated to leading order in QCD for top quark production at lepton colliders. Even though, these radiative corrections induce an anomalous gamma/Z magnetic moment for the top quarks and allow for single, real gluon emission, their effects on the top quark spin ori...
1107.4467
Shigeru Odaka
Shigeru Odaka, Yoshimasa Kurihara
GR@PPA 2.8: initial-state jet matching for weak boson production processes at hadron collisions
29 pages, 14 figures; minor changes to clarify the discussions, and corrections of typos
null
10.1016/j.cpc.2011.12.023
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The initial-state jet matching method introduced in our previous studies has been applied to the event generation of single $W$ and $Z$ production processes and diboson ($W^{+}W^{-}$, $WZ$ and $ZZ$) production processes at hadron collisions in the framework of the GR@PPA event generator. The generated events reproduc...
[ { "created": "Fri, 22 Jul 2011 09:53:52 GMT", "version": "v1" }, { "created": "Wed, 18 Jan 2012 05:52:05 GMT", "version": "v2" } ]
2015-05-28
[ [ "Odaka", "Shigeru", "" ], [ "Kurihara", "Yoshimasa", "" ] ]
The initial-state jet matching method introduced in our previous studies has been applied to the event generation of single $W$ and $Z$ production processes and diboson ($W^{+}W^{-}$, $WZ$ and $ZZ$) production processes at hadron collisions in the framework of the GR@PPA event generator. The generated events reproduce ...
hep-ph/0211284
Jeremie Vinet
James M. Cline and J\'er\'emie Vinet
Problems with Time-Varying Extra Dimensions or "Cardassian Expansion" as Alternatives to Dark Energy
8 pages, minor changes. To appear in Physical Review D
Phys.Rev. D68 (2003) 025015
10.1103/PhysRevD.68.025015
McGill-02-38, CERN-2002-340
hep-ph astro-ph hep-th
null
It has recently been proposed that the Universe might be accelerating as a consequence of extra dimensions with time varying size. We show that although these scenarios can lead to acceleration, they run into serious difficulty when taking into account limits on the time variation of the four dimensional Newton's con...
[ { "created": "Mon, 18 Nov 2002 20:26:45 GMT", "version": "v1" }, { "created": "Thu, 21 Nov 2002 18:31:23 GMT", "version": "v2" }, { "created": "Thu, 29 May 2003 12:14:30 GMT", "version": "v3" } ]
2009-11-07
[ [ "Cline", "James M.", "" ], [ "Vinet", "Jérémie", "" ] ]
It has recently been proposed that the Universe might be accelerating as a consequence of extra dimensions with time varying size. We show that although these scenarios can lead to acceleration, they run into serious difficulty when taking into account limits on the time variation of the four dimensional Newton's const...
1210.8435
D. V. Ahluwalia
D. V. Ahluwalia, Cheng-Yang Lee
Gamma-ray bursts and the relevance of rotation-induced neutrino sterilization
4 pages
Phys. Lett. B 719 (2013) 218-219
10.1016/j.physletb.2013.01.053
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A la Pontecorvo when one defines electroweak flavour states of neutrinos as a linear superposition of mass eigenstates one ignores the associated spin. If, however, there is a significant rotation between the neutrino source, and the detector, a negative helicity state emitted by the former acquires a non-zero probab...
[ { "created": "Wed, 31 Oct 2012 18:51:38 GMT", "version": "v1" } ]
2013-02-21
[ [ "Ahluwalia", "D. V.", "" ], [ "Lee", "Cheng-Yang", "" ] ]
A la Pontecorvo when one defines electroweak flavour states of neutrinos as a linear superposition of mass eigenstates one ignores the associated spin. If, however, there is a significant rotation between the neutrino source, and the detector, a negative helicity state emitted by the former acquires a non-zero probabil...
1201.3834
Philip Rau
P. Rau, J. Steinheimer, S. Schramm, H. St\"ocker
Resonance States in an Effective Chiral Hadronic Model
Talk given at the international conference on Critical Point and Onset of Deconfinement 2011 in Wuhan, PR China
Central European Journal of Physics, Volume 10, Issue 6 (2012), 1302-1305
10.2478/s11534-012-0039-6
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
With an effective chiral flavour SU(3) model we show the effect of hadronic resonances on the QCD phase diagram. We state that varying the resonance couplings to the scalar and vector fields affects the order and location of the phase transition, the possible existence of a critical end point (CEP), and the thermodyn...
[ { "created": "Wed, 18 Jan 2012 16:13:02 GMT", "version": "v1" } ]
2012-12-07
[ [ "Rau", "P.", "" ], [ "Steinheimer", "J.", "" ], [ "Schramm", "S.", "" ], [ "Stöcker", "H.", "" ] ]
With an effective chiral flavour SU(3) model we show the effect of hadronic resonances on the QCD phase diagram. We state that varying the resonance couplings to the scalar and vector fields affects the order and location of the phase transition, the possible existence of a critical end point (CEP), and the thermodynam...
2406.10969
Jingwei Lian
Jingwei Lian
The 95GeV Excesses in the $\mathbb{Z}_3$-symmetric Next-to Minimal Supersymmetric Standard Model
30 pages, 6 figures,
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Recent analyses by CMS and ATLAS suggest a deviation in the di-photon channel at approximately 95 GeV, alongside a previously observed excess in $b\bar{b}$ signals at a similar mass by LEP, potentially hinting at a new scalar particle. This study explores this possibility within the framework of the well-established ...
[ { "created": "Sun, 16 Jun 2024 15:02:13 GMT", "version": "v1" } ]
2024-06-18
[ [ "Lian", "Jingwei", "" ] ]
Recent analyses by CMS and ATLAS suggest a deviation in the di-photon channel at approximately 95 GeV, alongside a previously observed excess in $b\bar{b}$ signals at a similar mass by LEP, potentially hinting at a new scalar particle. This study explores this possibility within the framework of the well-established $\...
hep-ph/9803288
Jan Kwiecinski
J. Kwiecinski
Spin Dependent Structure Function $g_1$ at Low $x$
Talk given at the Cracow Epiphany Conference on Spin Effects in Particle Physics, 9-11 January 1998, Cracow, Poland
Acta Phys.Polon.B29:1201-1216,1998
null
null
hep-ph
null
Theoretical expectations concerning small $x$ behaviour of the spin dependent structure function $g_1$ are summarised. This includes discussion of the Regge pole model predictions and of the double $ln^2(1/x)$ effects implied by perturbative QCD. The quantitative implementation of the latter is described within the u...
[ { "created": "Mon, 9 Mar 1998 15:54:26 GMT", "version": "v1" } ]
2014-11-17
[ [ "Kwiecinski", "J.", "" ] ]
Theoretical expectations concerning small $x$ behaviour of the spin dependent structure function $g_1$ are summarised. This includes discussion of the Regge pole model predictions and of the double $ln^2(1/x)$ effects implied by perturbative QCD. The quantitative implementation of the latter is described within the uni...
1508.06133
Veronica Sanz
Veronica Sanz and Jack Setford
Composite Higgses with seesaw EWSB
19 pages, 2 figures. v2: JHEP version, mistake corrected, discussion on tuning and top-partners extended
null
10.1007/JHEP12(2015)154
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We introduce a new class of Composite Higgs models in which electroweak symmetry is broken by a seesaw-like mechanism. If a global symmetry is broken sequentially at different scales, two sets of pseudo-Goldstone bosons will arise, one set being typically heavier than the other. If two Composite Higgs doublets mix, t...
[ { "created": "Tue, 25 Aug 2015 12:45:04 GMT", "version": "v1" }, { "created": "Wed, 9 Dec 2015 20:14:27 GMT", "version": "v2" } ]
2016-01-27
[ [ "Sanz", "Veronica", "" ], [ "Setford", "Jack", "" ] ]
We introduce a new class of Composite Higgs models in which electroweak symmetry is broken by a seesaw-like mechanism. If a global symmetry is broken sequentially at different scales, two sets of pseudo-Goldstone bosons will arise, one set being typically heavier than the other. If two Composite Higgs doublets mix, the...
0706.2753
P. Q. Hung
P. Q. Hung
Implications of right-handed neutrinos with electroweak-scale masses
11 pages, no figures. Prepared for Les Rencontres de Physique de La Vallee d'Aoste, March 4-10, 2007, La Thuile, Vallee d'Aoste, Italy
FrascatiPhys.Ser.44:313-323,2007
null
null
hep-ph
null
The possibility of constructing a model in which right-handed neutrinos have electroweak-scale masses as well as being {\em non-sterile} was espoused in Ref. 1. In this talk, I will review the ideas and results of Ref. 1 and discuss its implications for colliders such as the Tevatron, LHC and ILC.
[ { "created": "Tue, 19 Jun 2007 09:59:16 GMT", "version": "v1" } ]
2008-11-26
[ [ "Hung", "P. Q.", "" ] ]
The possibility of constructing a model in which right-handed neutrinos have electroweak-scale masses as well as being {\em non-sterile} was espoused in Ref. 1. In this talk, I will review the ideas and results of Ref. 1 and discuss its implications for colliders such as the Tevatron, LHC and ILC.
1902.04222
Jesse Thaler
Cari Cesarotti, Yotam Soreq, Matthew J. Strassler, Jesse Thaler, Wei Xue
Searching in CMS Open Data for Dimuon Resonances with Substantial Transverse Momentum
21 pages, 8 figures, 4 tables; v2: approximate version to appear in PRD, with references added and some discussions expanded
Phys. Rev. D 100, 015021 (2019)
10.1103/PhysRevD.100.015021
MIT-CTP/5044, CERN-TH-2018-188
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study dimuon events in 2.11/fb of 7 TeV pp collisions, using CMS Open Data, and search for a narrow dimuon resonance with moderate mass (14-66 GeV) and substantial transverse momentum (pT). Applying dimuon pT cuts of 25 GeV and 60 GeV, we explore two overlapping samples: one with isolated muons, and one with promp...
[ { "created": "Tue, 12 Feb 2019 02:57:56 GMT", "version": "v1" }, { "created": "Fri, 19 Jul 2019 23:37:54 GMT", "version": "v2" } ]
2019-07-24
[ [ "Cesarotti", "Cari", "" ], [ "Soreq", "Yotam", "" ], [ "Strassler", "Matthew J.", "" ], [ "Thaler", "Jesse", "" ], [ "Xue", "Wei", "" ] ]
We study dimuon events in 2.11/fb of 7 TeV pp collisions, using CMS Open Data, and search for a narrow dimuon resonance with moderate mass (14-66 GeV) and substantial transverse momentum (pT). Applying dimuon pT cuts of 25 GeV and 60 GeV, we explore two overlapping samples: one with isolated muons, and one with prompt ...
1406.7476
Shivani Gupta
Shivani Gupta, Sin Kyu Kang, C. S. Kim
Renormalization Group Evolution of Neutrino Parameters in Presence of Seesaw Threshold Effects and Majorana Phases
Discussion modified in Sec 4, references added. Version to appear in Nucl. Phys. B
null
10.1016/j.nuclphysb.2015.01.026
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We examine the renormalization group evolution (RGE) for different mixing scenarios in the presence of seesaw threshold effects from high energy scale (GUT) to the low electroweak (EW) scale in the Standard Model (SM) and Minimal Supersymmetric Standard Model (MSSM). We consider four mixing scenarios namely Tri-Bimax...
[ { "created": "Sun, 29 Jun 2014 09:07:05 GMT", "version": "v1" }, { "created": "Sun, 1 Feb 2015 06:31:10 GMT", "version": "v2" } ]
2015-05-20
[ [ "Gupta", "Shivani", "" ], [ "Kang", "Sin Kyu", "" ], [ "Kim", "C. S.", "" ] ]
We examine the renormalization group evolution (RGE) for different mixing scenarios in the presence of seesaw threshold effects from high energy scale (GUT) to the low electroweak (EW) scale in the Standard Model (SM) and Minimal Supersymmetric Standard Model (MSSM). We consider four mixing scenarios namely Tri-Bimaxim...
1506.00623
Luca Vecchi
Luca Vecchi
A dangerous irrelevant UV-completion of the composite Higgs
14 pages, JHEP style, added discussion of vacuum alignment (first presented at https://lattice.llnl.gov/meetings/2015/beyond-standard-model-physics/presentations/2015-04-24/1630_VECCHI.pdf)
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
One of the most challenging hurdles to the construction of realistic composite Higgs models is the generation of Yukawa couplings for the Standard Model fermions. This problem can be successfully addressed in approximate conformal theories that admit a marginally relevant mixing between composite fermionic operators ...
[ { "created": "Mon, 1 Jun 2015 19:46:01 GMT", "version": "v1" }, { "created": "Sun, 10 Jul 2016 12:29:04 GMT", "version": "v2" } ]
2016-07-12
[ [ "Vecchi", "Luca", "" ] ]
One of the most challenging hurdles to the construction of realistic composite Higgs models is the generation of Yukawa couplings for the Standard Model fermions. This problem can be successfully addressed in approximate conformal theories that admit a marginally relevant mixing between composite fermionic operators an...
0908.3770
Jackson Wu
Jackson Wu
Non-Supersymmetric New Physics from Moeller Scattering
5 pages, 3 figures, talk given at "The 2009 Europhysics Conference on High Energy Physics", 16-22 July 2009, Krakow, Poland
PoS EPS-HEP2009 2009:251,2009
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study in an effective operator approach how the effects of new physics from various scenarios containing extra $Z'$ gauge bosons or doubly charged scalars can affect, and thus be tested by the precision polarized Moeller scattering experiment. We give Wilson coefficients for various classes of models, and we deduc...
[ { "created": "Wed, 26 Aug 2009 08:51:50 GMT", "version": "v1" } ]
2014-11-20
[ [ "Wu", "Jackson", "" ] ]
We study in an effective operator approach how the effects of new physics from various scenarios containing extra $Z'$ gauge bosons or doubly charged scalars can affect, and thus be tested by the precision polarized Moeller scattering experiment. We give Wilson coefficients for various classes of models, and we deduce ...
hep-ph/0408354
Cristina Manuel
Cristina Manuel
Transport Coefficients in Color Superconducting Quark Matter
5 pages; talk given in Strong and Electroweak Matter (SEWM 2004), Helsini, Finland, June 2004
null
10.1142/9789812702159_0044
null
hep-ph
null
Transport coefficients of dense quark matter are needed to study properties of compact stars. They can tell us about the cooling, vibrational and rotational properties of the star. We report below a computation of the shear viscosity in the CFL phase at low temperature T. CFL quark matter behaves as a superfluid, and...
[ { "created": "Tue, 31 Aug 2004 14:41:41 GMT", "version": "v1" } ]
2017-08-23
[ [ "Manuel", "Cristina", "" ] ]
Transport coefficients of dense quark matter are needed to study properties of compact stars. They can tell us about the cooling, vibrational and rotational properties of the star. We report below a computation of the shear viscosity in the CFL phase at low temperature T. CFL quark matter behaves as a superfluid, and a...
2307.00394
Mukesh Kumar
Karabo Mosala, Pramod Sharma, Mukesh Kumar, Ashok Goyal
Axion-Like Particles at future $e^- p$ collider
11 pages, 8 figures; Version accepted for publication in EPJC
Eur. Phys. J. C (2024) 84:44
10.1140/epjc/s10052-024-12401-9
null
hep-ph
http://creativecommons.org/publicdomain/zero/1.0/
In this work, we explore the possibilities of producing Axion-Like Particles (ALPs) in a future $e^-p$ collider. Specifically, we focus on the proposed Large Hadron electron collider (LHeC), which can achieve a center-of-mass energy of $\sqrt{s} \approx 1.3$~TeV, enabling us to probe relatively high ALP masses with $...
[ { "created": "Sat, 1 Jul 2023 17:45:30 GMT", "version": "v1" }, { "created": "Thu, 11 Jan 2024 18:48:43 GMT", "version": "v2" } ]
2024-01-19
[ [ "Mosala", "Karabo", "" ], [ "Sharma", "Pramod", "" ], [ "Kumar", "Mukesh", "" ], [ "Goyal", "Ashok", "" ] ]
In this work, we explore the possibilities of producing Axion-Like Particles (ALPs) in a future $e^-p$ collider. Specifically, we focus on the proposed Large Hadron electron collider (LHeC), which can achieve a center-of-mass energy of $\sqrt{s} \approx 1.3$~TeV, enabling us to probe relatively high ALP masses with $m_...
0812.3980
Fayet
Pierre Fayet
U(1)_A symmetry in two-doublet models, U bosons or light scalars, and psi and Upsilon decays
10 pages, to appear in Physics Letters B
Phys.Lett.B675:267-271,2009
10.1016/j.physletb.2009.03.078
LPTENS-08/70
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
psi and Upsilon decays may be used to search for light neutral spin-1 or spin-0 bosons associated with a broken extra-U(1) symmetry, local or global, acting axially on quarks and leptons, as may be present in supersymmetric theories with a lambda H_1 H_2 S superpotential term. Recent data on Upsilon --> gamma + invis...
[ { "created": "Sat, 20 Dec 2008 16:29:20 GMT", "version": "v1" }, { "created": "Fri, 10 Apr 2009 10:45:29 GMT", "version": "v2" } ]
2011-03-28
[ [ "Fayet", "Pierre", "" ] ]
psi and Upsilon decays may be used to search for light neutral spin-1 or spin-0 bosons associated with a broken extra-U(1) symmetry, local or global, acting axially on quarks and leptons, as may be present in supersymmetric theories with a lambda H_1 H_2 S superpotential term. Recent data on Upsilon --> gamma + invisib...
1812.10975
Tord Riemann
Khiem Hong Phan (Univ. of Science, Vietnam National University, Ho Chi Minh City) and Tord Riemann (DESY and Univ. of Silesia)
Scalar 1-loop Feynman integrals as meromorphic functions in space-time dimension d
9 pages, 3 tables
null
10.1016/j.physletb.2019.02.044
DESY 17-079, HCMUS-19-01, KW 18-004
hep-ph
http://creativecommons.org/licenses/by-sa/4.0/
The long-standing problem of representing the general massive one-loop Feynman integral as a meromorphic function of the space-time dimension $d$ has been solved for the basis of scalar one- to four-point functions with indices one. In 2003 the solution of difference equations in the space-time dimension allowed to d...
[ { "created": "Fri, 28 Dec 2018 12:39:36 GMT", "version": "v1" } ]
2019-03-06
[ [ "Phan", "Khiem Hong", "", "Univ. of Science, Vietnam National University, Ho Chi\n Minh City" ], [ "Riemann", "Tord", "", "DESY and Univ. of Silesia" ] ]
The long-standing problem of representing the general massive one-loop Feynman integral as a meromorphic function of the space-time dimension $d$ has been solved for the basis of scalar one- to four-point functions with indices one. In 2003 the solution of difference equations in the space-time dimension allowed to det...
hep-ph/9512270
Kotikov Anatoly
A.V.Kotikov (ENSLAPP and JINR)
The Gegenbauer Polynomial Technique: the evaluation of a class of Feynman diagrams
10 pages, Latex without figures
Phys.Lett. B375 (1996) 240-248
10.1016/0370-2693(96)00226-2
ENSLAPP-A-568/95
hep-ph hep-th
null
We extend Gegenbauer Polynomials technique to evaluate a class of complicated Feynman diagrams. New results in the form of $_3F_2$-hypergeometrical series of unit argument, are presented. As a by-product, we present a new transformation rule for $_3F_2$-hypergeometric series with argument $-1$.
[ { "created": "Mon, 11 Dec 1995 10:24:22 GMT", "version": "v1" } ]
2009-10-28
[ [ "Kotikov", "A. V.", "", "ENSLAPP and JINR" ] ]
We extend Gegenbauer Polynomials technique to evaluate a class of complicated Feynman diagrams. New results in the form of $_3F_2$-hypergeometrical series of unit argument, are presented. As a by-product, we present a new transformation rule for $_3F_2$-hypergeometric series with argument $-1$.
1011.6096
Kim Maltman
Kim Maltman
Status of the Lattice and Tau Decay Determinations of alpha_s
Prepared for the Proceedings of the 5th International Conference on Quarks and Nuclear Physics, Beijing, China, Sept. 21-26, 2009
Chin.Phys.C34:3150,2010
10.1088/1674-1137/34/9/040
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The two highest precision determinations of alpha_s(M_Z^2), that based on the analysis of short-distance-sensitive lattice observables, and that based on an analysis of hadronic tau decay data, have, until very recently, given results which are not in good agreement. I review new versions of these analyses which brin...
[ { "created": "Sun, 28 Nov 2010 22:06:11 GMT", "version": "v1" } ]
2015-05-20
[ [ "Maltman", "Kim", "" ] ]
The two highest precision determinations of alpha_s(M_Z^2), that based on the analysis of short-distance-sensitive lattice observables, and that based on an analysis of hadronic tau decay data, have, until very recently, given results which are not in good agreement. I review new versions of these analyses which bring ...
hep-ph/9211255
Felix Schlumpf
Felix Schlumpf
Relativistic Constituent Quark Model for Baryons
(latex, 76 pp, 16 figures, ps-file available) PhD Thesis, Zurich, July 1992
null
null
null
hep-ph nucl-th
null
The electroweak properties of nucleons and hyperons are calculated in a relativistic constituent quark model. The baryons are treated as three quark bound states, and the diagrams of perturbation theory are considered on the light front. The electroweak properties of the baryons are of nonperturbative nature and can ...
[ { "created": "Mon, 16 Nov 1992 23:19:44 GMT", "version": "v1" } ]
2009-09-25
[ [ "Schlumpf", "Felix", "" ] ]
The electroweak properties of nucleons and hyperons are calculated in a relativistic constituent quark model. The baryons are treated as three quark bound states, and the diagrams of perturbation theory are considered on the light front. The electroweak properties of the baryons are of nonperturbative nature and can be...
hep-ph/9409204
null
J. Bartelski and S. Tatur
From unpolarized to polarized quark distributions in the nucleon
10 pages, Latex, 4 postscript figures appended as an uuencoded file
Acta Phys.Polon.B26:913-920,1995
null
NCAC-277-94
hep-ph
null
Starting from Martin, Roberts and Stirling fit for unpolarized deep inelastic structure functions and using the newest experimental data on spin asymmetries we get a fit which provides polarized quark distributions. We analyze the behaviour of such functions near $x$ equal to 1. The first moments of these distributio...
[ { "created": "Thu, 1 Sep 1994 15:54:52 GMT", "version": "v1" } ]
2014-11-17
[ [ "Bartelski", "J.", "" ], [ "Tatur", "S.", "" ] ]
Starting from Martin, Roberts and Stirling fit for unpolarized deep inelastic structure functions and using the newest experimental data on spin asymmetries we get a fit which provides polarized quark distributions. We analyze the behaviour of such functions near $x$ equal to 1. The first moments of these distributions...
1709.02372
Ivan Vitev
Samuel Aronson, Evan Borras, Brunel Odegard, Rishi Sharma, Ivan Vitev
Collisional and thermal dissociation of $J/\psi$ and $\Upsilon$ states at the LHC
8 pages, 8 eps figures; 2 figures and references added, introduction restructured; version to appear in PLB
null
10.1016/j.physletb.2018.01.038
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present new results for the suppression of high transverse momentum charmonium [$J/\psi, \psi(2S)$] and bottomonium [$\Upsilon(1S),\Upsilon(2S),\Upsilon(3S)$] states in Pb+Pb collisions at the Large Hadron Collider. Our theoretical formalism combines the collisional dissociation of quarkonia, as they propagate in ...
[ { "created": "Thu, 7 Sep 2017 17:48:37 GMT", "version": "v1" }, { "created": "Fri, 26 Jan 2018 03:08:05 GMT", "version": "v2" } ]
2018-04-04
[ [ "Aronson", "Samuel", "" ], [ "Borras", "Evan", "" ], [ "Odegard", "Brunel", "" ], [ "Sharma", "Rishi", "" ], [ "Vitev", "Ivan", "" ] ]
We present new results for the suppression of high transverse momentum charmonium [$J/\psi, \psi(2S)$] and bottomonium [$\Upsilon(1S),\Upsilon(2S),\Upsilon(3S)$] states in Pb+Pb collisions at the Large Hadron Collider. Our theoretical formalism combines the collisional dissociation of quarkonia, as they propagate in th...
1507.01373
Michael Spira
Urs Langenegger, Michael Spira, Ivo Strebel
Testing the Higgs Boson Coupling to Gluons
12 pages, 6 figures, references added
null
null
PSI-PR-15-07
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the possibility to separate in gluon fusion loop-induced Higgs boson production from point-like production. The Higgs boson is reconstructed in the Hgg final state at very large transverse momentum. Using the Higgs boson yields (normalized to the overall rate) and the shape of the Higgs boson pt distribution...
[ { "created": "Mon, 6 Jul 2015 10:06:50 GMT", "version": "v1" }, { "created": "Fri, 24 Jul 2015 15:46:31 GMT", "version": "v2" } ]
2015-07-27
[ [ "Langenegger", "Urs", "" ], [ "Spira", "Michael", "" ], [ "Strebel", "Ivo", "" ] ]
We study the possibility to separate in gluon fusion loop-induced Higgs boson production from point-like production. The Higgs boson is reconstructed in the Hgg final state at very large transverse momentum. Using the Higgs boson yields (normalized to the overall rate) and the shape of the Higgs boson pt distribution t...
hep-ph/9605458
null
H. M. Asatrian, G.K. Yeghiyan
Higgs Boson Masses in NMSSM with Spontaneous CP-violation
15 pages, 7 figures
null
10.1142/S0217732396002769
Preprint YERPHI-1470(7)-96
hep-ph
null
The Higgs boson mass problem is considered in the next-to-minimal supersymmetric standard model for the case of the spontaneous CP violation. The renormalization group equations for the gauge, Yukawa and scalar coupling constants, the effective Higgs potential and lower experimental bounds on Higgs boson and chargino...
[ { "created": "Fri, 31 May 1996 13:26:37 GMT", "version": "v1" }, { "created": "Sat, 29 Jun 1996 07:39:07 GMT", "version": "v2" }, { "created": "Thu, 4 Jul 1996 09:50:52 GMT", "version": "v3" }, { "created": "Fri, 5 Jul 1996 09:13:39 GMT", "version": "v4" }, { "cre...
2009-10-28
[ [ "Asatrian", "H. M.", "" ], [ "Yeghiyan", "G. K.", "" ] ]
The Higgs boson mass problem is considered in the next-to-minimal supersymmetric standard model for the case of the spontaneous CP violation. The renormalization group equations for the gauge, Yukawa and scalar coupling constants, the effective Higgs potential and lower experimental bounds on Higgs boson and chargino m...
hep-ph/9411229
Vladimir Braun
M.Beneke and V.M Braun
Naive nonabelianization and resummation of fermion bubble chains
12 pages, LATEX, no figures
Phys.Lett. B348 (1995) 513-520
10.1016/0370-2693(95)00184-M
DESY 94-200
hep-ph
null
We propose to extend the Brodsky-Lepage-Mackenzie scale-fixing prescription by resumming exactly any number of one-loop vacuum polarization insertions into one-loop diagrams. In this way, one makes maximal use of the information contained in one-loop perturbative corrections combined with the one-loop running of the ...
[ { "created": "Sat, 5 Nov 1994 16:49:50 GMT", "version": "v1" } ]
2009-10-28
[ [ "Beneke", "M.", "" ], [ "Braun", "V. M", "" ] ]
We propose to extend the Brodsky-Lepage-Mackenzie scale-fixing prescription by resumming exactly any number of one-loop vacuum polarization insertions into one-loop diagrams. In this way, one makes maximal use of the information contained in one-loop perturbative corrections combined with the one-loop running of the ef...
1312.1628
John M. Campbell
John M. Campbell, R. Keith Ellis and Ciaran Williams
Bounding the Higgs width at the LHC: complementary results from $H \to WW$
8 pages, 5 figures
Phys. Rev. D 89, 053011 (2014)
10.1103/PhysRevD.89.053011
FERMILAB-PUB-13-553-T
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the potential of the process $gg \to H \to WW$ to provide bounds on the Higgs width. Recent studies using off-shell $H\rightarrow ZZ$ events have shown that Run 1 LHC data can constrain the Higgs width, $\Gamma_H < (25-45) \Gamma_{H}^{\rm SM}$. Using 20 fb-1 of 8 TeV ATLAS data, we estimate a bound on ...
[ { "created": "Thu, 5 Dec 2013 17:45:40 GMT", "version": "v1" } ]
2014-03-26
[ [ "Campbell", "John M.", "" ], [ "Ellis", "R. Keith", "" ], [ "Williams", "Ciaran", "" ] ]
We investigate the potential of the process $gg \to H \to WW$ to provide bounds on the Higgs width. Recent studies using off-shell $H\rightarrow ZZ$ events have shown that Run 1 LHC data can constrain the Higgs width, $\Gamma_H < (25-45) \Gamma_{H}^{\rm SM}$. Using 20 fb-1 of 8 TeV ATLAS data, we estimate a bound on th...
hep-ph/9803297
Apostolos Pilaftsis
Apostolos Pilaftsis (Max-Planck-Inst., Munich)
CP-Odd Tadpole Renormalization of Higgs Scalar-Pseudoscalar Mixing
22 pages, LaTeX
Phys.Rev. D58 (1998) 096010
10.1103/PhysRevD.58.096010
MPI/PhT/98-21
hep-ph
null
We consider an Abelian model with a CP-conserving Higgs potential spanned by two complex Higgs fields. The CP invariance of the Higgs potential is then broken explicitly beyond the Born approximation by introducing soft-CP-violating Yukawa interactions. Based on the non-renormalization theorem, we derive the consiste...
[ { "created": "Tue, 10 Mar 1998 15:37:59 GMT", "version": "v1" } ]
2009-10-31
[ [ "Pilaftsis", "Apostolos", "", "Max-Planck-Inst., Munich" ] ]
We consider an Abelian model with a CP-conserving Higgs potential spanned by two complex Higgs fields. The CP invariance of the Higgs potential is then broken explicitly beyond the Born approximation by introducing soft-CP-violating Yukawa interactions. Based on the non-renormalization theorem, we derive the consistenc...
hep-ph/0505120
Rena Ciftci
A. K. Ciftci, R. Ciftci, S. Sultansoy
The Fourth SM Family Neutrino at Future Linear Colliders
16 pages, 3 figures, 10 tables
Phys.Rev.D72:053006,2005
10.1103/PhysRevD.72.053006
null
hep-ph
null
It is known that Flavor Democracy favors the existence of the fourth standard model (SM) family. In order to give nonzero masses for the first three family fermions Flavor Democracy has to be slightly broken. A parametrization for democracy breaking, which gives the correct values for fundamental fermion masses and, ...
[ { "created": "Fri, 13 May 2005 14:56:24 GMT", "version": "v1" }, { "created": "Sat, 14 May 2005 07:36:36 GMT", "version": "v2" } ]
2014-11-18
[ [ "Ciftci", "A. K.", "" ], [ "Ciftci", "R.", "" ], [ "Sultansoy", "S.", "" ] ]
It is known that Flavor Democracy favors the existence of the fourth standard model (SM) family. In order to give nonzero masses for the first three family fermions Flavor Democracy has to be slightly broken. A parametrization for democracy breaking, which gives the correct values for fundamental fermion masses and, at...
1608.01834
Jos Vermaseren A
Franz Herzog, Ben Ruijl, Takahiro Ueda, J.A.M. Vermaseren (NIKHEF, Amsterdam), Andreas Vogt (Liverpool U., Dept. Math.)
FORM, Diagrams and Topologies
16 pages, LaTeX (PoS style) using axodraw2.sty. To appear in the proceedings of `Loops & Legs 2016', Leipzig (Germany), April 2016
null
null
NIKHEF 2016-040, LTH 1096
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss a number of FORM features that are essential in the automatic processing of very large numbers of diagrams as used in the Forcer program for 4-loop massless propagator diagrams. Most of these features are new.
[ { "created": "Fri, 5 Aug 2016 11:18:09 GMT", "version": "v1" } ]
2016-08-08
[ [ "Herzog", "Franz", "", "NIKHEF,\n Amsterdam" ], [ "Ruijl", "Ben", "", "NIKHEF,\n Amsterdam" ], [ "Ueda", "Takahiro", "", "NIKHEF,\n Amsterdam" ], [ "Vermaseren", "J. A. M.", "", "NIKHEF,\n Amsterdam" ], [ "Vogt", "Andreas"...
We discuss a number of FORM features that are essential in the automatic processing of very large numbers of diagrams as used in the Forcer program for 4-loop massless propagator diagrams. Most of these features are new.
1503.03577
Xiao-Gang He
Xiao-Gang He, Tzu-Chiang Yuan
Glueball Production via Gluonic Penguin B Decays
Latex 14 pages with 2 figures. Significant update from the older version of arXiv:hep-ph/0612108. Version to appear in Eur. Phys. J. C
null
10.1140/epjc/s10052-015-3354-4
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study glueball $G$ production in gluonic penguin decay $B\to G + X_s$, using the next-to-leading order $b\to s g^*$ gluonic penguin interaction and effective couplings of a glueball to two perturbative gluons. Subsequent decays of a scalar glueball are described by using techniques of effective chiral Lagrangian t...
[ { "created": "Thu, 12 Mar 2015 04:07:30 GMT", "version": "v1" }, { "created": "Sat, 14 Mar 2015 12:58:31 GMT", "version": "v2" } ]
2015-06-24
[ [ "He", "Xiao-Gang", "" ], [ "Yuan", "Tzu-Chiang", "" ] ]
We study glueball $G$ production in gluonic penguin decay $B\to G + X_s$, using the next-to-leading order $b\to s g^*$ gluonic penguin interaction and effective couplings of a glueball to two perturbative gluons. Subsequent decays of a scalar glueball are described by using techniques of effective chiral Lagrangian to ...
1202.5491
Yonatan Kahn
Yonatan Kahn and Jesse Thaler
Locality in Theory Space
40 pages, 11 figures; v2: references and clarifications added; v3: version accepted by JHEP
JHEP 1207:007,2012
10.1007/JHEP07(2012)007
MIT-CTP 4346
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Locality is a guiding principle for constructing realistic quantum field theories. Compactified theories offer an interesting context in which to think about locality, since interactions can be nonlocal in the compact directions while still being local in the extended ones. In this paper, we study locality in "theory...
[ { "created": "Fri, 24 Feb 2012 16:24:17 GMT", "version": "v1" }, { "created": "Fri, 6 Apr 2012 17:25:30 GMT", "version": "v2" }, { "created": "Wed, 27 Jun 2012 18:03:55 GMT", "version": "v3" } ]
2012-07-10
[ [ "Kahn", "Yonatan", "" ], [ "Thaler", "Jesse", "" ] ]
Locality is a guiding principle for constructing realistic quantum field theories. Compactified theories offer an interesting context in which to think about locality, since interactions can be nonlocal in the compact directions while still being local in the extended ones. In this paper, we study locality in "theory s...
0902.1434
Yi Liao
Yi Liao (1 and 2 and 3), Ji-Yuan Liu (1), Guo-Zhu Ning (1) ((1) Nankai U., (2) CHEP, Peking U., (3) KITPC, CAS)
Radiative Neutrino Mass in Type III Seesaw Model
21 pages, 1 figure; v2: added 3 sentences in sec 4 for clarifications, version published on 7 Apr 2009 in PR D79, 073003 (2009)
Phys.Rev.D79:073003,2009
10.1103/PhysRevD.79.073003
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The simplest type III seesaw model as originally proposed introduces one lepton triplet. It thus contains four active neutrinos, two massive and two massless at tree level. We determine the radiative masses that the latter receive first at two loops. The masses are generally so tiny that they are definitely excluded ...
[ { "created": "Mon, 9 Feb 2009 13:08:39 GMT", "version": "v1" }, { "created": "Sun, 12 Apr 2009 13:15:51 GMT", "version": "v2" } ]
2009-04-22
[ [ "Liao", "Yi", "", "1 and 2 and 3" ], [ "Liu", "Ji-Yuan", "" ], [ "Ning", "Guo-Zhu", "" ] ]
The simplest type III seesaw model as originally proposed introduces one lepton triplet. It thus contains four active neutrinos, two massive and two massless at tree level. We determine the radiative masses that the latter receive first at two loops. The masses are generally so tiny that they are definitely excluded by...
hep-ph/9709470
Leonard S. Kisslinger
Leonard S. Kisslinger (Carnegie Mellon University),Zhenping Li (Peking University)
Sigma Signal for Hybrid Baryon Decay
Latex file
Phys.Lett. B445 (1999) 271-273
10.1016/S0370-2693(98)01503-2
null
hep-ph
null
We develop an ansatze of the sigma enhancement of the I=0, L=0 $\pi$-$\pi$ scattering amplitude as arising from a low-energy glueball pole. Using this picture we estimate the $\pi^0\pi^0$ to $\pi^0$ branching ratio for the decays of the Roper resonance, which we previously found to be a hybrid in our QCD sum rule cal...
[ { "created": "Fri, 26 Sep 1997 13:53:36 GMT", "version": "v1" } ]
2009-10-30
[ [ "Kisslinger", "Leonard S.", "", "Carnegie Mellon University" ], [ "Li", "Zhenping", "", "Peking\n University" ] ]
We develop an ansatze of the sigma enhancement of the I=0, L=0 $\pi$-$\pi$ scattering amplitude as arising from a low-energy glueball pole. Using this picture we estimate the $\pi^0\pi^0$ to $\pi^0$ branching ratio for the decays of the Roper resonance, which we previously found to be a hybrid in our QCD sum rule calcu...
1011.0909
Vincenzo Barone
Vincenzo Barone, Franco Bradamante, Anna Martin
Transverse-Spin and Transverse-Momentum Effects in High-Energy Processes
95 pages
Prog.Part.Nucl.Phys.65:267-333,2010
10.1016/j.ppnp.2010.07.003
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The state of the art concerning transverse-spin and transverse-momentum phenomena in hard hadronic reactions is reviewed. An account is given of single-spin and azimuthal asymmetries in semiinclusive deep inelastic scattering, e^+ e^- annihilation, Drell-Yan production, and hadroproduction. The ongoing experiments an...
[ { "created": "Wed, 3 Nov 2010 15:10:13 GMT", "version": "v1" } ]
2010-12-01
[ [ "Barone", "Vincenzo", "" ], [ "Bradamante", "Franco", "" ], [ "Martin", "Anna", "" ] ]
The state of the art concerning transverse-spin and transverse-momentum phenomena in hard hadronic reactions is reviewed. An account is given of single-spin and azimuthal asymmetries in semiinclusive deep inelastic scattering, e^+ e^- annihilation, Drell-Yan production, and hadroproduction. The ongoing experiments and ...
hep-ph/0505093
Andrew Psallidas
A. Psallidas
Majorana Neutrino Masses from Flavor Symmetries
Based on a talk given in the "Workshop on Recent Advances in Particle Physics and Cosmology", Thessaloniki 2005
null
null
null
hep-ph
null
In this talk we discuss the implications of the Minimal Supersymmetric Standard Model augmented by a single U(1) anomalous family symmetry for neutrino masses and mixing angles. The left-handed neutrino states are provided with Majorana masses through a dimension-five operator in the absence of right handed neutrino ...
[ { "created": "Wed, 11 May 2005 12:18:35 GMT", "version": "v1" } ]
2007-05-23
[ [ "Psallidas", "A.", "" ] ]
In this talk we discuss the implications of the Minimal Supersymmetric Standard Model augmented by a single U(1) anomalous family symmetry for neutrino masses and mixing angles. The left-handed neutrino states are provided with Majorana masses through a dimension-five operator in the absence of right handed neutrino co...
hep-ph/9605246
Motohiko Yoshimura
M. Yoshimura
Baryogenesis and thermal history after inflation
25 pages, LATEX file. Lecture delivered at KOSEF-JSPS Winter School, held at Seoul, Korea, February 21-28, 1996. To appear in the Proceedings to be published in Journal of Korean Physical Society
J.KoreanPhys.Soc.29:S236,1996
null
TU/96/500
hep-ph
null
The basic idea of baryogenesis is lectured to introduce non-experts to this subject. Some recent topics, necessarily subjective in view of short time limitation, are also presented to show how the initial condition for baryogenesis is realized in the new framework of inflation.
[ { "created": "Wed, 8 May 1996 05:32:26 GMT", "version": "v1" } ]
2008-11-26
[ [ "Yoshimura", "M.", "" ] ]
The basic idea of baryogenesis is lectured to introduce non-experts to this subject. Some recent topics, necessarily subjective in view of short time limitation, are also presented to show how the initial condition for baryogenesis is realized in the new framework of inflation.
hep-ph/0212367
Yan QiShu
Q.S. Yan, and D.S. Du
The renormalization of the effective gauge theory with spontaneous symmetry breaking: the $SU(2)\times U(1)$ case
58 figures, one revtex file, 69 pages in total; we establish a modifed power counting rule to make our procedure consistent. Comparison with the full theory is made. The problem of unitarity violation is addressed
null
null
null
hep-ph
null
We formulate the electroweak chiral Lagrangian in its mass eigenstates, and study the its one-loop renormalization and provide its renormalization group equations to the same order, so as to complete it as the low energy effective theory of the standard model below a few TeV. In order to make our computation consiste...
[ { "created": "Thu, 26 Dec 2002 04:59:31 GMT", "version": "v1" }, { "created": "Fri, 24 Jan 2003 18:46:37 GMT", "version": "v2" }, { "created": "Fri, 20 Jun 2003 09:33:12 GMT", "version": "v3" } ]
2007-05-23
[ [ "Yan", "Q. S.", "" ], [ "Du", "D. S.", "" ] ]
We formulate the electroweak chiral Lagrangian in its mass eigenstates, and study the its one-loop renormalization and provide its renormalization group equations to the same order, so as to complete it as the low energy effective theory of the standard model below a few TeV. In order to make our computation consistent...
hep-ph/9505212
null
R. Casalbuoni, P. Chiappetta, D. Dominici, A. Fiandrino and R. Gatto
Top Quark Production in Extended Bess Model
13 pages, LaTeX, 4 figures
Z.Phys. C69 (1996) 519-524
null
CPT-95/P.3176; UGVA-DPT 1995/04-887
hep-ph
null
We study top production at Tevatron collider in the extended BESS model, which is an effective lagrangian parametrization of a dynamical symmetry breaking of the electroweak symmetry. The existence of a colored octet of gauge vector bosons can increase top production at a rate still consistent with recent experimenta...
[ { "created": "Tue, 2 May 1995 14:44:35 GMT", "version": "v1" } ]
2009-09-25
[ [ "Casalbuoni", "R.", "" ], [ "Chiappetta", "P.", "" ], [ "Dominici", "D.", "" ], [ "Fiandrino", "A.", "" ], [ "Gatto", "R.", "" ] ]
We study top production at Tevatron collider in the extended BESS model, which is an effective lagrangian parametrization of a dynamical symmetry breaking of the electroweak symmetry. The existence of a colored octet of gauge vector bosons can increase top production at a rate still consistent with recent experimental ...
hep-ph/9411395
Marek Jezabek
R. Harlander, M. Je\.zabek, J.H. K\"uhn and T. Teubner
Polarization in Top Quark Pair Production near Threshold
11 pages, LaTex (uses epsf.sty, 3 ps-figures appended as extra uuencoded file). The complete paper, including figures, is also available via anonymous ftp at ftp://ttpux2.physik.uni-karlsruhe.de/ttp94-28/ttp94-28.ps, or via www at http://ttpux2.physik.uni-karlsruhe.de/preprints.html
Phys.Lett. B346 (1995) 137-142
10.1016/0370-2693(94)01668-3
TTP94-28
hep-ph
null
The polarization dependent momentum distributions of top quarks and their decay products are calculated for $t\bar t$ production at future $e^+e^-$ colliders with polarized beams. The Green function formalism is applied to this reaction near energy threshold. The Lippmann--Schwinger equations for the $S$-wave and $P$...
[ { "created": "Fri, 25 Nov 1994 18:32:13 GMT", "version": "v1" } ]
2009-10-28
[ [ "Harlander", "R.", "" ], [ "Jeżabek", "M.", "" ], [ "Kühn", "J. H.", "" ], [ "Teubner", "T.", "" ] ]
The polarization dependent momentum distributions of top quarks and their decay products are calculated for $t\bar t$ production at future $e^+e^-$ colliders with polarized beams. The Green function formalism is applied to this reaction near energy threshold. The Lippmann--Schwinger equations for the $S$-wave and $P$-w...
hep-ph/0510271
Wanda Maria Alberico
W.M. Alberico, P. Czerski, A. Lavagno, M. Nardi, V. Soma'
Signals of non-extensive statistical mechanics in high-energy nuclear collisions
13 pages, 3 figures
null
null
null
hep-ph
null
Starting from the presence of non-ideal plasma effects due to strongly coupled plasma in the early stage of relativistic heavy-ion collisions, we investigate, from a phenomenological point of view, the relevance of non-conventional statistical mechanics effects on the rapidity spectra of net proton yield at AGS, SPS ...
[ { "created": "Thu, 20 Oct 2005 16:39:25 GMT", "version": "v1" }, { "created": "Wed, 31 May 2006 17:30:47 GMT", "version": "v2" } ]
2007-05-23
[ [ "Alberico", "W. M.", "" ], [ "Czerski", "P.", "" ], [ "Lavagno", "A.", "" ], [ "Nardi", "M.", "" ], [ "Soma'", "V.", "" ] ]
Starting from the presence of non-ideal plasma effects due to strongly coupled plasma in the early stage of relativistic heavy-ion collisions, we investigate, from a phenomenological point of view, the relevance of non-conventional statistical mechanics effects on the rapidity spectra of net proton yield at AGS, SPS an...
2108.11868
Kodai Sakurai
Masashi Aiko, Shinya Kanemura, Kodai Sakurai
Radiative corrections to decays of charged Higgs bosons in two Higgs doublet models
68 pages, 17 figures; revised version as accepted by Nuclear Physics B
null
null
OU-HET 1100, TU 1128
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the next-to-leading order (NLO) electroweak (EW) corrections to decay rates of charged Higgs bosons for various decay modes in the four types of two Higgs doublet models (THDMs) with the softly broken discrete Z_2 symmetry. Decay branching ratios of charged Higgs bosons are evaluated including NLO EW cor...
[ { "created": "Thu, 26 Aug 2021 15:50:24 GMT", "version": "v1" }, { "created": "Thu, 21 Oct 2021 10:10:58 GMT", "version": "v2" } ]
2021-10-22
[ [ "Aiko", "Masashi", "" ], [ "Kanemura", "Shinya", "" ], [ "Sakurai", "Kodai", "" ] ]
We calculate the next-to-leading order (NLO) electroweak (EW) corrections to decay rates of charged Higgs bosons for various decay modes in the four types of two Higgs doublet models (THDMs) with the softly broken discrete Z_2 symmetry. Decay branching ratios of charged Higgs bosons are evaluated including NLO EW corre...
hep-ph/9907466
Jorge Crispim Romao
J. C. Romao
Neutrino Masses from Broken R-Parity
11 pages, 11 Figures in Postscript. Talk given at the International Workshop on Physics Beyond the Standard Model: From Theory to Experiment, Valencia, Spain, May 3-8 1999
Nucl.Phys.Proc.Suppl. 81 (2000) 231-241
10.1016/S0920-5632(99)00881-6
FISIST/13-99/CFIF
hep-ph
null
We review models where R-parity is broken, either spontaneously or explicitly. In this last case we consider the situation where R-parity is broken via bilinear terms in the superpotential. We show that although at tree level only one neutrino gets mass, at one--loop level all three neutrinos became massive. We study...
[ { "created": "Fri, 23 Jul 1999 11:22:32 GMT", "version": "v1" } ]
2009-10-31
[ [ "Romao", "J. C.", "" ] ]
We review models where R-parity is broken, either spontaneously or explicitly. In this last case we consider the situation where R-parity is broken via bilinear terms in the superpotential. We show that although at tree level only one neutrino gets mass, at one--loop level all three neutrinos became massive. We study t...
2204.01580
Joran Angevaare
J. R. Angevaare, G. Bertone, A. P. Colijn, M. P. Decowski, B. J. Kavanagh
Complementarity of direct detection experiments in search of light Dark Matter
19 pages, 7 figures
JCAP10(2022)004
10.1088/1475-7516/2022/10/004
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Dark Matter experiments searching for Weakly interacting massive particles (WIMPs) primarily use nuclear recoils (NRs) in their attempt to detect WIMPs. Migdal-induced electronic recoils (ERs) provide additional sensitivity to light Dark Matter with $\mathcal{O}(\text{GeV}/c^2)$ masses. In this work, we use Bayesian ...
[ { "created": "Mon, 4 Apr 2022 15:30:57 GMT", "version": "v1" }, { "created": "Wed, 31 Aug 2022 08:47:07 GMT", "version": "v2" } ]
2022-12-22
[ [ "Angevaare", "J. R.", "" ], [ "Bertone", "G.", "" ], [ "Colijn", "A. P.", "" ], [ "Decowski", "M. P.", "" ], [ "Kavanagh", "B. J.", "" ] ]
Dark Matter experiments searching for Weakly interacting massive particles (WIMPs) primarily use nuclear recoils (NRs) in their attempt to detect WIMPs. Migdal-induced electronic recoils (ERs) provide additional sensitivity to light Dark Matter with $\mathcal{O}(\text{GeV}/c^2)$ masses. In this work, we use Bayesian in...
1205.6811
Dan Hooper
Matthew R. Buckley and Dan Hooper
Implications of a 130 GeV Gamma-Ray Line for Dark Matter
7 pages, 4 figures
null
10.1103/PhysRevD.86.043524
FERMILAB-PUB-12-259-A
hep-ph astro-ph.CO astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recent reports of a gamma-ray line feature at ~130 GeV in data from the Fermi Gamma-Ray Space Telescope have generated a great deal of interest in models in which dark matter particles annihilate with a sizable cross section to final states including photons. In this article, we take a model-independent approach, and...
[ { "created": "Wed, 30 May 2012 20:00:36 GMT", "version": "v1" }, { "created": "Wed, 13 Jun 2012 16:45:00 GMT", "version": "v2" }, { "created": "Thu, 19 Jul 2012 19:58:00 GMT", "version": "v3" } ]
2013-05-30
[ [ "Buckley", "Matthew R.", "" ], [ "Hooper", "Dan", "" ] ]
Recent reports of a gamma-ray line feature at ~130 GeV in data from the Fermi Gamma-Ray Space Telescope have generated a great deal of interest in models in which dark matter particles annihilate with a sizable cross section to final states including photons. In this article, we take a model-independent approach, and d...
1709.03415
Peter H. L. Christiansen
Peter Christiansen
What Quark-Gluon Plasma in small systems might tell us about nucleons
15 pages, 2 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The origin of flow-like effects in small systems, such as those produced in ultra-relativistic proton-proton and proton-lead collisions, is still widely debated. In this paper the goal is to look at possible consequences if indeed a mini-Quark-Gluon Plasma is formed in these collisions. It is argued that this could i...
[ { "created": "Mon, 11 Sep 2017 14:46:55 GMT", "version": "v1" } ]
2017-09-12
[ [ "Christiansen", "Peter", "" ] ]
The origin of flow-like effects in small systems, such as those produced in ultra-relativistic proton-proton and proton-lead collisions, is still widely debated. In this paper the goal is to look at possible consequences if indeed a mini-Quark-Gluon Plasma is formed in these collisions. It is argued that this could ind...
hep-ph/9711263
Zsolt Szep
A. Patkos, P. Petreczky, Zs. Szep
Coupled Gap Equations for the Screening Masses in Hot SU(N) Gauge Theory
15 pages, Latex, 4 eps figures included, uses epsf.sty, added references, corrected typos
Eur.Phys.J.C5:337-344,1998
10.1007/s100520050277
ITP Budapest Rep. 537, BI-TP 97/45
hep-ph
null
Coupled 1-loop gap equations are studied numerically for non-Abelian electric and magnetic screening in various versions of the three-dimensional effective gauge models. Corrections due to higher dimensional and non-local operators are assessed quantitatively. Comparison with numerical Monte-Carlo investigations sugg...
[ { "created": "Sat, 8 Nov 1997 00:23:23 GMT", "version": "v1" }, { "created": "Thu, 18 Dec 1997 20:10:42 GMT", "version": "v2" }, { "created": "Fri, 13 Feb 1998 00:18:15 GMT", "version": "v3" } ]
2011-09-13
[ [ "Patkos", "A.", "" ], [ "Petreczky", "P.", "" ], [ "Szep", "Zs.", "" ] ]
Coupled 1-loop gap equations are studied numerically for non-Abelian electric and magnetic screening in various versions of the three-dimensional effective gauge models. Corrections due to higher dimensional and non-local operators are assessed quantitatively. Comparison with numerical Monte-Carlo investigations sugges...
hep-ph/0510002
Naomichi Suzuki
Naomichi Suzuki and Minoru Biyajima
Relativistic diffusion model and analysis of large transverse momentum distributions
6pages, 4figures, talk at XXXV International Symposium on Multiparticle Dynamics 2005, Kromeriz, Czech Republuc, August 9-15, 2005
null
10.1063/1.2197425
null
hep-ph
null
In order to describe large transverse momentum ($p_T$) distributions observed in high energy nucleus-nucleus collisions, a stochastic model in the three dimensional rapidity space is introduced. The fundamental solution of the radial symmetric diffusion equation is Gaussian-like in radial rapidity. We can also de...
[ { "created": "Sat, 1 Oct 2005 01:52:35 GMT", "version": "v1" } ]
2015-06-25
[ [ "Suzuki", "Naomichi", "" ], [ "Biyajima", "Minoru", "" ] ]
In order to describe large transverse momentum ($p_T$) distributions observed in high energy nucleus-nucleus collisions, a stochastic model in the three dimensional rapidity space is introduced. The fundamental solution of the radial symmetric diffusion equation is Gaussian-like in radial rapidity. We can also derive a...
2203.03211
Xiao-Rui Lyu
Hai-Yang Cheng (1), Xiao-Rui Lyu (2), Zhi-Zhong Xing (2,3) (for the STCF working group, (1) Institute of Physics, Academia Sinica, (2) University of Chinese Academy of Sciences, (3) Institute of High Energy Physics)
Charm Physics in the High-Luminosity Super $\tau$-Charm Factory
White Paper on STCF charm physics; contribution to Snowmass 2021
null
null
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
This is a white paper on the STCF charm physics contributing to the Snowmass 2021 proceedings in the RF01 working group.
[ { "created": "Mon, 7 Mar 2022 08:51:56 GMT", "version": "v1" } ]
2022-03-08
[ [ "Cheng", "Hai-Yang", "" ], [ "Lyu", "Xiao-Rui", "" ], [ "Xing", "Zhi-Zhong", "" ] ]
This is a white paper on the STCF charm physics contributing to the Snowmass 2021 proceedings in the RF01 working group.
0910.2448
Rosti Konoplich
Rashid M. Djilkibaev and Rostislav V. Konoplich
Reconstruction of $\tilde{\tau}_{1}$ mass at the LHC
13 pages, 4 figures, corrected Table 6 and typos, added references for section 3
Phys.Atom.Nucl.74:90-97,2011
10.1134/S106377881101011X
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The cascade mass reconstruction approach was used for mass reconstruction of the lightest stau produced at the LHC in the cascade decay $\tilde{g} \to \tilde{b} b \to \tilde{\chi}_{2}^{0} b b \to \tilde{\tau}_{1} \tau b b \to \tilde{\chi}_{1}^{0} \tau \tau b b $. The stau mass was reconstructed assuming that masses o...
[ { "created": "Tue, 13 Oct 2009 18:30:14 GMT", "version": "v1" }, { "created": "Mon, 28 Dec 2009 04:44:39 GMT", "version": "v2" } ]
2011-03-17
[ [ "Djilkibaev", "Rashid M.", "" ], [ "Konoplich", "Rostislav V.", "" ] ]
The cascade mass reconstruction approach was used for mass reconstruction of the lightest stau produced at the LHC in the cascade decay $\tilde{g} \to \tilde{b} b \to \tilde{\chi}_{2}^{0} b b \to \tilde{\tau}_{1} \tau b b \to \tilde{\chi}_{1}^{0} \tau \tau b b $. The stau mass was reconstructed assuming that masses of ...
hep-ph/0401044
Ernest Ma
Ernest Ma (UC Riverside)
Quarks and Leptons in a Hexagonal Chain
10 pages, including 1 figure
Phys.Lett. B593 (2004) 198
10.1016/j.physletb.2004.04.056
UCRHEP-T369 (Jan 04)
hep-ph
null
The seemingly disparate notions of chiral color and quark-lepton nonuniversality are combined, and shown to be essential to each other as part of an underlying (and unifying) larger symmetry, i.e. supersymmetric SU(3)^6. Both phenomena are accessible experimentally at the TeV energy scale.
[ { "created": "Thu, 8 Jan 2004 21:13:27 GMT", "version": "v1" } ]
2009-11-10
[ [ "Ma", "Ernest", "", "UC Riverside" ] ]
The seemingly disparate notions of chiral color and quark-lepton nonuniversality are combined, and shown to be essential to each other as part of an underlying (and unifying) larger symmetry, i.e. supersymmetric SU(3)^6. Both phenomena are accessible experimentally at the TeV energy scale.
1804.02299
Robert Harlander
R.V. Harlander, J. Klappert, C. Pandini, and A. Papaefstathiou
Exploiting the WH/ZH symmetry in the search for New Physics
22 pages, 10 figures. v2: Minor changes; matches published version
null
10.1140/epjc/s10052-018-6234-x
TTK-17-48, Nikhef 2018-026
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We suggest to isolate the loop-induced gluon-initiated component ($gg\to ZH$) for associated $ZH$ production by using the similarity of the Drell-Yan-like component for $ZH$ production to the $WH$ process. We argue that the cross-section ratio of the latter two processes can be predicted with high theoretical accurac...
[ { "created": "Fri, 6 Apr 2018 14:32:40 GMT", "version": "v1" }, { "created": "Tue, 9 Oct 2018 11:20:50 GMT", "version": "v2" } ]
2018-10-17
[ [ "Harlander", "R. V.", "" ], [ "Klappert", "J.", "" ], [ "Pandini", "C.", "" ], [ "Papaefstathiou", "A.", "" ] ]
We suggest to isolate the loop-induced gluon-initiated component ($gg\to ZH$) for associated $ZH$ production by using the similarity of the Drell-Yan-like component for $ZH$ production to the $WH$ process. We argue that the cross-section ratio of the latter two processes can be predicted with high theoretical accuracy....
1102.5327
Alexander Kovner
T. Altinoluk and A. Kovner
Particle Production at High Energy and Large Transverse Momentum - "The Hybrid Formalism" Revisited
null
Phys.Rev.D83:105004,2011
10.1103/PhysRevD.83.105004
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We revisit the "`hybrid formalism"' for particle production used recently to study saturation effects in single hadron multiplicities at forward rapidities at RHIC and LHC. We point out that at leading twist there is an extra contribution to the formulae used so far, which corresponds to particle production via inela...
[ { "created": "Fri, 25 Feb 2011 20:19:17 GMT", "version": "v1" } ]
2011-05-13
[ [ "Altinoluk", "T.", "" ], [ "Kovner", "A.", "" ] ]
We revisit the "`hybrid formalism"' for particle production used recently to study saturation effects in single hadron multiplicities at forward rapidities at RHIC and LHC. We point out that at leading twist there is an extra contribution to the formulae used so far, which corresponds to particle production via inelast...
1208.1177
Wayne W. Repko
Duane A. Dicus and Wayne W. Repko
An estimate of the branching ratio for Z -> nu nubar gamma gamma
Three pages, 2 figures
null
10.1103/PhysRevD.86.097302
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The effective interaction for two neutrino, two photon coupling is used to find an approximate width for the decay of the Z boson into the nu nubar gamma gamma final state.
[ { "created": "Mon, 6 Aug 2012 14:52:39 GMT", "version": "v1" } ]
2013-05-30
[ [ "Dicus", "Duane A.", "" ], [ "Repko", "Wayne W.", "" ] ]
The effective interaction for two neutrino, two photon coupling is used to find an approximate width for the decay of the Z boson into the nu nubar gamma gamma final state.
hep-ph/0106130
Johan Bijnens
Johan Bijnens and Fredrik Persson (Lund)
Effects of different Form-factors in Meson-Photon-Photon Transitions and the Muon Anomalous Magnetic Moment
28p. Master thesis from december 1999 but the results were felt useful for the muon g-2 discussion. Version with more references in preparation
null
null
LU TP 99--39
hep-ph
null
The exact form of the form-factor associated with a meson-photon-photon vertex is not known. Different suggestions exist, based on constraints from QCD and on recent experiments. Four different form-factors are studied in this article. We calculate decay rates for the decays $\pi^{0}\to \gamma\gamma$, $\eta\to \gam...
[ { "created": "Wed, 13 Jun 2001 07:02:52 GMT", "version": "v1" } ]
2007-05-23
[ [ "Bijnens", "Johan", "", "Lund" ], [ "Persson", "Fredrik", "", "Lund" ] ]
The exact form of the form-factor associated with a meson-photon-photon vertex is not known. Different suggestions exist, based on constraints from QCD and on recent experiments. Four different form-factors are studied in this article. We calculate decay rates for the decays $\pi^{0}\to \gamma\gamma$, $\eta\to \gamma e...
2306.09510
Pierluca Carenza
Pierluca Carenza, Tassia Ferreira, Roman Pasechnik, Zhi-Wei Wang
Glueball dark matter, precisely
12 pages, 6 figures; update and generalization of arXiv:2207.13716. v2: 12 pages, 6 figures; minor changes to match the published version
Phys.Rev.D 108 (2023) 12, 123027
10.1103/PhysRevD.108.123027
null
hep-ph astro-ph.CO hep-lat hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We delve deeper into the potential composition of dark matter as stable scalar glueballs from a confining dark $SU(N)$ gauge theory, focusing on $N=\{3,4,5\}$. To predict the relic abundance of glueballs for the various gauge groups and scenarios of thermalization of the dark gluon gas, we employ a thermal effective ...
[ { "created": "Thu, 15 Jun 2023 21:14:37 GMT", "version": "v1" }, { "created": "Tue, 19 Dec 2023 17:00:52 GMT", "version": "v2" } ]
2023-12-20
[ [ "Carenza", "Pierluca", "" ], [ "Ferreira", "Tassia", "" ], [ "Pasechnik", "Roman", "" ], [ "Wang", "Zhi-Wei", "" ] ]
We delve deeper into the potential composition of dark matter as stable scalar glueballs from a confining dark $SU(N)$ gauge theory, focusing on $N=\{3,4,5\}$. To predict the relic abundance of glueballs for the various gauge groups and scenarios of thermalization of the dark gluon gas, we employ a thermal effective th...
1001.0070
Xu Qing-Jun
Qing-Jun Xu, Z. was
News on PHOTOS Monte Carlo: gamma^* -> pi^+ pi^-(gamma) and K^\pm -> pi^+ pi^- e^\pm nu (gamma)
6 pages, 11 figures, proceedings of the PhiPsi09, Oct. 13-16, 2009, Beijing, China
Chin.Phys.C34:889-895,2010
10.1088/1674-1137/34/6/046
IFJPAN-IV-2010-1
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
PHOTOS Monte Carlo is widely used for simulating QED effects in decay of intermediate particles and resonances. It can be easily connected to other main process generators. In this paper we consider decaying processes gamma^* -> pi^+ pi^-(gamma) and K^\pm -> pi^+ pi^- e^\pm nu (gamma) in the framework of Scalar QED. ...
[ { "created": "Mon, 4 Jan 2010 15:50:15 GMT", "version": "v1" }, { "created": "Wed, 13 Jan 2010 16:41:03 GMT", "version": "v2" }, { "created": "Thu, 14 Jan 2010 10:34:23 GMT", "version": "v3" } ]
2011-01-05
[ [ "Xu", "Qing-Jun", "" ], [ "was", "Z.", "" ] ]
PHOTOS Monte Carlo is widely used for simulating QED effects in decay of intermediate particles and resonances. It can be easily connected to other main process generators. In this paper we consider decaying processes gamma^* -> pi^+ pi^-(gamma) and K^\pm -> pi^+ pi^- e^\pm nu (gamma) in the framework of Scalar QED. Th...
0906.1757
Shun Zhou
Zhi-zhong Xing and Shun Zhou
Multiple seesaw mechanisms of neutrino masses at the TeV scale
10 pages, 2 figures, accepted for publication in Phys. Lett. B
Phys.Lett.B679:249-254,2009
10.1016/j.physletb.2009.07.051
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In pursuit of a balance between theoretical naturalness and experimental testability, we propose two classes of multiple seesaw mechanisms at the TeV scale to understand the origin of tiny neutrino masses. They are novel extensions of the canonical and double seesaw mechanisms, respectively, by introducing even and o...
[ { "created": "Tue, 9 Jun 2009 15:04:15 GMT", "version": "v1" }, { "created": "Thu, 23 Jul 2009 13:06:31 GMT", "version": "v2" } ]
2009-09-28
[ [ "Xing", "Zhi-zhong", "" ], [ "Zhou", "Shun", "" ] ]
In pursuit of a balance between theoretical naturalness and experimental testability, we propose two classes of multiple seesaw mechanisms at the TeV scale to understand the origin of tiny neutrino masses. They are novel extensions of the canonical and double seesaw mechanisms, respectively, by introducing even and odd...
1905.05648
Krzysztof Rolbiecki
Jong Soo Kim, Stefan Pokorski, Krzysztof Rolbiecki and Kazuki Sakurai
Gravitino vs Neutralino LSP at the LHC
22 pages, 5 figures, minor changes, to appear in JHEP
null
10.1007/JHEP09(2019)082
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Using the latest LHC data, we analyse and compare the lower limits on the masses of gluinos and the lightest stop in two natural supersymmetric motivated scenarios: one with a neutralino being the lightest supersymmetric particle (LSP) and the other one with gravitino as the LSP and neutralino as the next-to-lightest...
[ { "created": "Tue, 14 May 2019 14:45:55 GMT", "version": "v1" }, { "created": "Mon, 19 Aug 2019 15:39:15 GMT", "version": "v2" } ]
2019-10-02
[ [ "Kim", "Jong Soo", "" ], [ "Pokorski", "Stefan", "" ], [ "Rolbiecki", "Krzysztof", "" ], [ "Sakurai", "Kazuki", "" ] ]
Using the latest LHC data, we analyse and compare the lower limits on the masses of gluinos and the lightest stop in two natural supersymmetric motivated scenarios: one with a neutralino being the lightest supersymmetric particle (LSP) and the other one with gravitino as the LSP and neutralino as the next-to-lightest s...
1607.06197
Zhen Fang
Zhen Fang
A holographic model for the baryon octet
6 pages
Phys. Rev. D 94, 074017 (2016)
10.1103/PhysRevD.94.074017
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
By adopting the nonlinear realization of chiral symmetry, a holographic model for the baryon octet is proposed. The mass spectra of the baryon octet and their low-lying excited states are calculated, which show good consistency with experiments. The couplings of pion to nucleons are derived in two gauges and are show...
[ { "created": "Thu, 21 Jul 2016 05:24:42 GMT", "version": "v1" } ]
2016-10-19
[ [ "Fang", "Zhen", "" ] ]
By adopting the nonlinear realization of chiral symmetry, a holographic model for the baryon octet is proposed. The mass spectra of the baryon octet and their low-lying excited states are calculated, which show good consistency with experiments. The couplings of pion to nucleons are derived in two gauges and are shown ...
1201.0809
Kevin Engel
Kevin T. Engel, Hiren H. Patel, Michael J. Ramsey-Musolf
Hadronic Light-by-Light and the Pion Polarizability
4 pages, 1 figure
null
10.1103/PhysRevD.86.037502
NPAC-11-16; CALT 68-2861
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We compute the charged pion loop contribution to the light-by-light scattering amplitude for off-shell photons in chiral perturbation theory through next-to-leading order (NLO). We show that NLO contributions are relatively more important due to a fortuitous numerical suppression of the leading-order (LO) terms. Cons...
[ { "created": "Wed, 4 Jan 2012 02:45:42 GMT", "version": "v1" }, { "created": "Fri, 13 Jan 2012 20:40:59 GMT", "version": "v2" } ]
2013-05-30
[ [ "Engel", "Kevin T.", "" ], [ "Patel", "Hiren H.", "" ], [ "Ramsey-Musolf", "Michael J.", "" ] ]
We compute the charged pion loop contribution to the light-by-light scattering amplitude for off-shell photons in chiral perturbation theory through next-to-leading order (NLO). We show that NLO contributions are relatively more important due to a fortuitous numerical suppression of the leading-order (LO) terms. Conseq...
hep-ph/9305208
Jihn E. Kim
Eung Jin Chun, Hang Bae Kim and Jihn E. Kim
Dark Matters in Axino Gravitino Cosmology
9 pages, Latex
Phys.Rev.Lett.72:1956-1959,1994
10.1103/PhysRevLett.72.1956
null
hep-ph
null
It is suggested that the axino mass in the 1 MeV region and gravitino mass in the eV region can provide an axino lifetime of order of the time of photon decoupling. In this case, some undecayed axinos act like cold dark matters and some axino decay products (gravitinos and hot axions) act like hot dark matters at the...
[ { "created": "Tue, 4 May 1993 11:49:18 GMT", "version": "v1" } ]
2010-12-09
[ [ "Chun", "Eung Jin", "" ], [ "Kim", "Hang Bae", "" ], [ "Kim", "Jihn E.", "" ] ]
It is suggested that the axino mass in the 1 MeV region and gravitino mass in the eV region can provide an axino lifetime of order of the time of photon decoupling. In this case, some undecayed axinos act like cold dark matters and some axino decay products (gravitinos and hot axions) act like hot dark matters at the t...
2108.11381
Yu-Pan Zeng
Yu-Pan Zeng and Xiang Xiao and Wei Wang
Constraints on Pseudo-Nambu-Goldstone dark matter from direct detection experiment and neutron star reheating temperature
9 pages, 2 figures
Physics Letters B 824 (2022) 136822
10.1016/j.physletb.2021.136822
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Pseudo-Nambu-Goldstone dark matter connected to Standard Model fermion through the Higgs portal has the property that its direct detection vanishes in the zero momentum transfer limit due to a cancellation mechanism. This feature helps the Pseudo-Nambu-Goldstone dark matter to escape the stringent constraints from di...
[ { "created": "Wed, 25 Aug 2021 15:48:31 GMT", "version": "v1" }, { "created": "Tue, 19 Oct 2021 16:59:27 GMT", "version": "v2" }, { "created": "Wed, 8 Dec 2021 01:50:00 GMT", "version": "v3" } ]
2021-12-09
[ [ "Zeng", "Yu-Pan", "" ], [ "Xiao", "Xiang", "" ], [ "Wang", "Wei", "" ] ]
Pseudo-Nambu-Goldstone dark matter connected to Standard Model fermion through the Higgs portal has the property that its direct detection vanishes in the zero momentum transfer limit due to a cancellation mechanism. This feature helps the Pseudo-Nambu-Goldstone dark matter to escape the stringent constraints from dire...
2303.13937
Knut Zoch
Lukas Ehrke, John Andrew Raine, Knut Zoch, Manuel Guth, Tobias Golling
Topological Reconstruction of Particle Physics Processes using Graph Neural Networks
25 pages, 24 figures, 8 tables
Phys. Rev. D 107 (2023) 116019
10.1103/PhysRevD.107.116019
null
hep-ph cs.LG hep-ex
http://creativecommons.org/licenses/by/4.0/
We present a new approach, the Topograph, which reconstructs underlying physics processes, including the intermediary particles, by leveraging underlying priors from the nature of particle physics decays and the flexibility of message passing graph neural networks. The Topograph not only solves the combinatoric assig...
[ { "created": "Fri, 24 Mar 2023 11:50:08 GMT", "version": "v1" }, { "created": "Mon, 27 Mar 2023 14:27:45 GMT", "version": "v2" }, { "created": "Fri, 28 Apr 2023 16:09:32 GMT", "version": "v3" }, { "created": "Wed, 17 May 2023 14:15:06 GMT", "version": "v4" }, { "c...
2023-10-16
[ [ "Ehrke", "Lukas", "" ], [ "Raine", "John Andrew", "" ], [ "Zoch", "Knut", "" ], [ "Guth", "Manuel", "" ], [ "Golling", "Tobias", "" ] ]
We present a new approach, the Topograph, which reconstructs underlying physics processes, including the intermediary particles, by leveraging underlying priors from the nature of particle physics decays and the flexibility of message passing graph neural networks. The Topograph not only solves the combinatoric assignm...
hep-ph/0601229
Joan Rojo
Joan Rojo
Neural network parametrization of the lepton energy spectrum in semileptonic B meson decays
32 pages, 22 figures, JHEP3 class. v4 version accepted for publication in JHEP
JHEP 0605:040,2006
10.1088/1126-6708/2006/05/040
null
hep-ph hep-ex
null
We construct a parametrization of the lepton energy spectrum in inclusive semileptonic decays of B mesons, based on the available experimental information: moments of the spectrum with cuts, their errors and their correlations, together with kinematical constraints. The result is obtained in the form of a Monte Carlo...
[ { "created": "Fri, 27 Jan 2006 11:16:21 GMT", "version": "v1" }, { "created": "Tue, 31 Jan 2006 08:01:12 GMT", "version": "v2" }, { "created": "Tue, 7 Feb 2006 08:28:58 GMT", "version": "v3" }, { "created": "Mon, 15 May 2006 08:56:25 GMT", "version": "v4" } ]
2011-01-25
[ [ "Rojo", "Joan", "" ] ]
We construct a parametrization of the lepton energy spectrum in inclusive semileptonic decays of B mesons, based on the available experimental information: moments of the spectrum with cuts, their errors and their correlations, together with kinematical constraints. The result is obtained in the form of a Monte Carlo s...