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2212.03929
Sagar Airen
Kaustubh Agashe, Sagar Airen, Roberto Franceschini, Joesph Incandela, Doojin Kim, and Deepak Sathyan
Energy-peak based method to measure top quark mass via B-hadron decay lengths
30 pages, 9 figures
null
10.1007/JHEP06(2023)021
UMD-PP-022-10; MI-HEE-790
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
We develop a method for the determination of the top quark mass using the distribution of the decay length of the $B$-hadrons originating from its decay. This technique is based on our earlier observation regarding the location of the peak of the $b$ quark energy distribution. Such "energy-peak" methods enjoy a great...
[ { "created": "Wed, 7 Dec 2022 19:52:06 GMT", "version": "v1" }, { "created": "Fri, 9 Dec 2022 04:53:02 GMT", "version": "v2" }, { "created": "Tue, 9 May 2023 13:15:42 GMT", "version": "v3" } ]
2023-06-21
[ [ "Agashe", "Kaustubh", "" ], [ "Airen", "Sagar", "" ], [ "Franceschini", "Roberto", "" ], [ "Incandela", "Joesph", "" ], [ "Kim", "Doojin", "" ], [ "Sathyan", "Deepak", "" ] ]
We develop a method for the determination of the top quark mass using the distribution of the decay length of the $B$-hadrons originating from its decay. This technique is based on our earlier observation regarding the location of the peak of the $b$ quark energy distribution. Such "energy-peak" methods enjoy a greater...
1008.0636
Rouven Essig
Rouven Essig, Roni Harnik, Jared Kaplan, Natalia Toro
Discovering New Light States at Neutrino Experiments
32 text pages, 5 figures, 4 tables
Phys.Rev.D82:113008,2010
10.1103/PhysRevD.82.113008
SLAC-PUB-14197, FERMILAB-PUB-10-274-T
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Experiments designed to measure neutrino oscillations also provide major opportunities for discovering very weakly coupled states. In order to produce neutrinos, experiments such as LSND collide thousands of Coulombs of protons into fixed targets, while MINOS and MiniBooNE also focus and then dump beams of muons. The...
[ { "created": "Tue, 3 Aug 2010 20:00:01 GMT", "version": "v1" } ]
2010-12-24
[ [ "Essig", "Rouven", "" ], [ "Harnik", "Roni", "" ], [ "Kaplan", "Jared", "" ], [ "Toro", "Natalia", "" ] ]
Experiments designed to measure neutrino oscillations also provide major opportunities for discovering very weakly coupled states. In order to produce neutrinos, experiments such as LSND collide thousands of Coulombs of protons into fixed targets, while MINOS and MiniBooNE also focus and then dump beams of muons. The n...
hep-ph/0306307
Stefan Kretzer
S. Kretzer (Brookhaven & RIKEN BNL) and M.H. Reno (Iowa U.)
Deep Inelastic Neutrino Interactions
7 pages, 7 figures, to appear in the proceedings of NUINT02, Dec 02, Irvine, CA
null
null
null
hep-ph
null
Understanding neutrino interactions is an important task in searches for neutrino oscillations; e.g. the nu_{mu} -> nu_{tau} oscillation hypothesis will be tested through nu_{tau} production of tau in long-baseline experiments as well as underground neutrino telescopes. An anomaly in the deep inelastic interaction of...
[ { "created": "Mon, 30 Jun 2003 17:20:34 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kretzer", "S.", "", "Brookhaven & RIKEN BNL" ], [ "Reno", "M. H.", "", "Iowa U." ] ]
Understanding neutrino interactions is an important task in searches for neutrino oscillations; e.g. the nu_{mu} -> nu_{tau} oscillation hypothesis will be tested through nu_{tau} production of tau in long-baseline experiments as well as underground neutrino telescopes. An anomaly in the deep inelastic interaction of n...
hep-ph/0502095
Alessandro Strumia
Guido Marandella, Christian Schappacher, Alessandro Strumia
Supersymmetry and precision data after LEP2
16 pages
Nucl.Phys.B715:173-189,2005
10.1016/j.nuclphysb.2005.03.001
null
hep-ph
null
We study one loop supersymmetric corrections to precision observables. Adding LEP2 e ebar --> f fbar cross sections to the data-set removes previous hints for SUSY and the resulting constraints are in some cases stronger than direct bounds on sparticle masses. We consider specific models: split SUSY, CMSSM, gauge med...
[ { "created": "Thu, 10 Feb 2005 18:34:08 GMT", "version": "v1" } ]
2009-10-09
[ [ "Marandella", "Guido", "" ], [ "Schappacher", "Christian", "" ], [ "Strumia", "Alessandro", "" ] ]
We study one loop supersymmetric corrections to precision observables. Adding LEP2 e ebar --> f fbar cross sections to the data-set removes previous hints for SUSY and the resulting constraints are in some cases stronger than direct bounds on sparticle masses. We consider specific models: split SUSY, CMSSM, gauge media...
2111.02113
Lissa Keersmaekers
Lissa Keersmaekers and Sara Taheri Monfared
Recent developments in the Parton Branching approach to TMDs
Contribution to the EPS-HEP2021 conference, 7 pages, 3 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Parton Branching (PB) Method describes the evolution of transverse momentum dependent parton densities (TMDs). The obtained TMDs can be used in Monte Carlo generators to describe physical observables. We give an overview of recent developments, in particular the new application of PB TMDs in Drell-Yan + jets prod...
[ { "created": "Wed, 3 Nov 2021 10:12:10 GMT", "version": "v1" } ]
2021-11-04
[ [ "Keersmaekers", "Lissa", "" ], [ "Monfared", "Sara Taheri", "" ] ]
The Parton Branching (PB) Method describes the evolution of transverse momentum dependent parton densities (TMDs). The obtained TMDs can be used in Monte Carlo generators to describe physical observables. We give an overview of recent developments, in particular the new application of PB TMDs in Drell-Yan + jets produc...
hep-ph/9401212
Gabor Cynolter
G. Cynolter, E. Lendvai and G. P\'ocsik
$\rho$ Parameter in the Vector Condensate Model of Electroweak Interactions
3 pages, 2 figs, TeX
Mod.Phys.Lett. A9 (1994) 1701-1706
10.1142/S0217732394001544
ITP-Budapest Report No.504
hep-ph
null
In the standard model of electroweak interactions the Higgs doublet is replaced by a doublet of vector bosons and the gauge symmetry is broken dynamically. This generates masses for the gauge bosons and fermions, as well as it fixes the interactions in the model. The model has a low momentum scale. In this note we sh...
[ { "created": "Thu, 6 Jan 1994 10:49:16 GMT", "version": "v1" } ]
2015-06-25
[ [ "Cynolter", "G.", "" ], [ "Lendvai", "E.", "" ], [ "Pócsik", "G.", "" ] ]
In the standard model of electroweak interactions the Higgs doublet is replaced by a doublet of vector bosons and the gauge symmetry is broken dynamically. This generates masses for the gauge bosons and fermions, as well as it fixes the interactions in the model. The model has a low momentum scale. In this note we show...
hep-ph/0108165
D. I. Melikhov
D. Melikhov and B. Stech
Non-local anomaly of the axial-vector current for bound states
revtex, 4 pages, numerical value for $\kappa$ in Eq. (19) is corrected, Eqs. (22) and (23) are modified. New references added. Results remain unchanged
Phys.Rev.Lett. 88 (2002) 151601
10.1103/PhysRevLett.88.151601
HD-THEP-01-18 (Uni Heidelberg)
hep-ph hep-th
null
We demonstrate that the amplitude $<\rho\gamma|\partial_\nu (\bar q\gamma_\nu \gamma_5 q)|0>$ does not vanish in the limit of zero quark masses. This represents a new kind of violation of the classical equation of motion for the axial current and should be interpreted as the axial anomaly for bound states. The anomal...
[ { "created": "Tue, 21 Aug 2001 08:57:10 GMT", "version": "v1" }, { "created": "Wed, 19 Dec 2001 15:58:25 GMT", "version": "v2" } ]
2009-11-07
[ [ "Melikhov", "D.", "" ], [ "Stech", "B.", "" ] ]
We demonstrate that the amplitude $<\rho\gamma|\partial_\nu (\bar q\gamma_\nu \gamma_5 q)|0>$ does not vanish in the limit of zero quark masses. This represents a new kind of violation of the classical equation of motion for the axial current and should be interpreted as the axial anomaly for bound states. The anomaly ...
1009.3865
Sadataka Furui
Sadataka Furui
On the roles of triality in the infrared QCD
7 pages, 17 figures, typos corrected
null
null
20100920
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the QCD analysis, when quarks are expressed in quaternion basis, the product of quaternions are expressed by octonions and the octonion posesses the triality symmetry. Roles of triality in the gluon self energy calculation and finite temperature QCD is explained.
[ { "created": "Mon, 20 Sep 2010 15:58:36 GMT", "version": "v1" } ]
2010-09-21
[ [ "Furui", "Sadataka", "" ] ]
In the QCD analysis, when quarks are expressed in quaternion basis, the product of quaternions are expressed by octonions and the octonion posesses the triality symmetry. Roles of triality in the gluon self energy calculation and finite temperature QCD is explained.
2105.05834
Astrid Nathalie Hiller Blin
A. N. Hiller Blin, W. Melnitchouk, V. I. Mokeev, V. D. Burkert, V. V. Chesnokov, A. Pilloni, A. P. Szczepaniak
Resonant contributions to inclusive nucleon structure functions from exclusive meson electroproduction data
null
Phys. Rev. C 104, 025201 (2021)
10.1103/PhysRevC.104.025201
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Nucleon resonance contributions to the inclusive proton $F_2$ and $F_L$ structure functions are computed from resonance electroexcitation amplitudes in the mass range up to 1.75 GeV extracted from CLAS exclusive meson electroproduction data. Taking into account for the first time quantum interference effects, the res...
[ { "created": "Wed, 12 May 2021 17:51:00 GMT", "version": "v1" } ]
2021-08-11
[ [ "Blin", "A. N. Hiller", "" ], [ "Melnitchouk", "W.", "" ], [ "Mokeev", "V. I.", "" ], [ "Burkert", "V. D.", "" ], [ "Chesnokov", "V. V.", "" ], [ "Pilloni", "A.", "" ], [ "Szczepaniak", "A. P.", "" ] ]
Nucleon resonance contributions to the inclusive proton $F_2$ and $F_L$ structure functions are computed from resonance electroexcitation amplitudes in the mass range up to 1.75 GeV extracted from CLAS exclusive meson electroproduction data. Taking into account for the first time quantum interference effects, the reson...
1805.04826
Neil Barrie Dr.
Kazuharu Bamba, Neil D. Barrie, Akio Sugamoto, Tatsu Takeuchi, Kimiko Yamashita
Pendulum Leptogenesis
14 pages, no figures; minor revision to match PLB
null
10.1016/j.physletb.2018.08.044
OCHA-PP-351
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a new non-thermal Leptogenesis mechanism that takes place during the reheating epoch, and utilizes the Ratchet mechanism. The interplay between the oscillation of the inflaton during reheating and a scalar lepton leads to a dynamical system that emulates the well-known forced pendulum. This is found to pro...
[ { "created": "Sun, 13 May 2018 06:02:50 GMT", "version": "v1" }, { "created": "Fri, 5 Oct 2018 05:31:58 GMT", "version": "v2" } ]
2018-10-08
[ [ "Bamba", "Kazuharu", "" ], [ "Barrie", "Neil D.", "" ], [ "Sugamoto", "Akio", "" ], [ "Takeuchi", "Tatsu", "" ], [ "Yamashita", "Kimiko", "" ] ]
We propose a new non-thermal Leptogenesis mechanism that takes place during the reheating epoch, and utilizes the Ratchet mechanism. The interplay between the oscillation of the inflaton during reheating and a scalar lepton leads to a dynamical system that emulates the well-known forced pendulum. This is found to produ...
1211.4075
Pankaj Sharma
Sudhansu S. Biswal, Saurabh D. Rindani and Pankaj Sharma
Probing chromomagnetic and chromoelectric couplings of the top quark using its polarization in pair production at hadron colliders
27 pages, 9 Figures, Matches published version
Physical Review D 88, 074018, 2013
10.1103/PhysRevD.88.074018
KIAS-P12074
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Tevatron, where the top quark was discovered, and the currently functional Large Hadron Collider (LHC), with copiously produced top pairs, enable a detailed study of top-quark properties. In particular, they can be used to test the couplings of the top quark to gauge bosons. Several extensions of the standard mod...
[ { "created": "Sat, 17 Nov 2012 05:27:36 GMT", "version": "v1" }, { "created": "Wed, 30 Oct 2013 07:34:45 GMT", "version": "v2" } ]
2013-10-31
[ [ "Biswal", "Sudhansu S.", "" ], [ "Rindani", "Saurabh D.", "" ], [ "Sharma", "Pankaj", "" ] ]
The Tevatron, where the top quark was discovered, and the currently functional Large Hadron Collider (LHC), with copiously produced top pairs, enable a detailed study of top-quark properties. In particular, they can be used to test the couplings of the top quark to gauge bosons. Several extensions of the standard model...
1402.6623
Hannu Paukkunen
Hannu Paukkunen and Pia Zurita
PDF reweighting in the Hessian matrix approach
The final version, to appear in JHEP
null
10.1007/JHEP12(2014)100
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We introduce the Hessian reweighting of parton distribution functions (PDFs). Similarly to the better-known Bayesian methods, its purpose is to address the compatibility of new data and the quantitative modifications they induce within an existing set of PDFs. By construction, the method discussed here applies to the...
[ { "created": "Wed, 26 Feb 2014 17:55:16 GMT", "version": "v1" }, { "created": "Fri, 25 Apr 2014 12:41:37 GMT", "version": "v2" }, { "created": "Wed, 10 Dec 2014 11:27:08 GMT", "version": "v3" } ]
2015-06-18
[ [ "Paukkunen", "Hannu", "" ], [ "Zurita", "Pia", "" ] ]
We introduce the Hessian reweighting of parton distribution functions (PDFs). Similarly to the better-known Bayesian methods, its purpose is to address the compatibility of new data and the quantitative modifications they induce within an existing set of PDFs. By construction, the method discussed here applies to the P...
0704.2675
Sergey Gevorkyan
S.R.Gevorkyan, A.N.Sissakian, A.V.Tarasov, H.T.Torosyan, O.O.Voskresenskaya
The isospin symmetry breaking effects in $K_{e4}$ decays
null
Phys.Atom.Nucl.73:961,2010
10.1134/S1063778810060098
null
hep-ph
null
The Fermi-Watson theorem is generalized to the case of two coupled channels with different masses and applied to final state interaction in $K_{e4}$ decays. The impact of considered effect on the phase of the $\pi\pi$ scattering is estimated and shown that it can be crucial for scattering lengths extraction from expe...
[ { "created": "Fri, 20 Apr 2007 09:22:38 GMT", "version": "v1" }, { "created": "Fri, 16 May 2008 19:19:42 GMT", "version": "v2" } ]
2011-04-07
[ [ "Gevorkyan", "S. R.", "" ], [ "Sissakian", "A. N.", "" ], [ "Tarasov", "A. V.", "" ], [ "Torosyan", "H. T.", "" ], [ "Voskresenskaya", "O. O.", "" ] ]
The Fermi-Watson theorem is generalized to the case of two coupled channels with different masses and applied to final state interaction in $K_{e4}$ decays. The impact of considered effect on the phase of the $\pi\pi$ scattering is estimated and shown that it can be crucial for scattering lengths extraction from experi...
hep-ph/9908285
S. G. Rajeev
V. John, G. S. Krishnaswami and S. G. Rajeev
The Anti-quark Distribution Function of the Baryon
RevTex
null
null
null
hep-ph
null
We derive the Deep Inelastic anti-quark distribution in a baryon at a low value of Q^2 using the variational principle of Quantum HadronDynamics, an alternative formulation of Quantum ChromoDynamics. It is determined by a variational approach generalizing the ``valence'' quark approximation of earlier papers. We find...
[ { "created": "Fri, 6 Aug 1999 16:37:57 GMT", "version": "v1" } ]
2007-05-23
[ [ "John", "V.", "" ], [ "Krishnaswami", "G. S.", "" ], [ "Rajeev", "S. G.", "" ] ]
We derive the Deep Inelastic anti-quark distribution in a baryon at a low value of Q^2 using the variational principle of Quantum HadronDynamics, an alternative formulation of Quantum ChromoDynamics. It is determined by a variational approach generalizing the ``valence'' quark approximation of earlier papers. We find t...
hep-ph/0102219
Matthias Neubert
Thomas Becher, Matthias Neubert and Ben D. Pecjak (Cornell University)
Asymptotics of QCD Factorization in Exclusive Hadronic Decays of B Mesons
27 pages, 4 figures
Nucl.Phys. B619 (2001) 538-564
10.1016/S0550-3213(01)00500-4
CLNS 01/1723
hep-ph
null
Using the renormalon calculus, we study the asymptotic behavior of the perturbative expansion of the hard-scattering kernels entering the QCD factorization formula for the nonleptonic weak decays B->D M, where M is a light meson. In the ``large-beta_0 limit'', the kernels are infrared finite and free of endpoint sing...
[ { "created": "Sat, 17 Feb 2001 21:36:16 GMT", "version": "v1" } ]
2016-09-06
[ [ "Becher", "Thomas", "", "Cornell University" ], [ "Neubert", "Matthias", "", "Cornell University" ], [ "Pecjak", "Ben D.", "", "Cornell University" ] ]
Using the renormalon calculus, we study the asymptotic behavior of the perturbative expansion of the hard-scattering kernels entering the QCD factorization formula for the nonleptonic weak decays B->D M, where M is a light meson. In the ``large-beta_0 limit'', the kernels are infrared finite and free of endpoint singul...
2102.01605
Mina Ketan Parida
Mina Ketan Parida (SOA Deemed to be Univ.), Riyanka Samantaray (SOA Deemed to be Univ.)
SU(5) unification of two triplet seesaw and leptogenesis with dark matter and vacuum stability
36 pages, 12 figures, related areas hep-ex, Pub version: NPB (2021) 115484
Nucl. Phy. B (2021) 115484
10.1016/j.nuclphysb.2021.115484
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We investigate unification prospects of two heavy scalar triplet extension of the standard model where, in the absence of any right-handed neutrino (RHN), type-II seesaw accounts for current oscillation data with hierarchical neutrino masses consistent with cosmological bounds and the lighter triplet decay explains b...
[ { "created": "Tue, 2 Feb 2021 17:02:43 GMT", "version": "v1" }, { "created": "Thu, 17 Jun 2021 05:27:03 GMT", "version": "v2" }, { "created": "Tue, 20 Jul 2021 05:50:00 GMT", "version": "v3" } ]
2021-07-21
[ [ "Parida", "Mina Ketan", "", "SOA Deemed to be Univ." ], [ "Samantaray", "Riyanka", "", "SOA\n Deemed to be Univ." ] ]
We investigate unification prospects of two heavy scalar triplet extension of the standard model where, in the absence of any right-handed neutrino (RHN), type-II seesaw accounts for current oscillation data with hierarchical neutrino masses consistent with cosmological bounds and the lighter triplet decay explains bar...
1503.01469
Hiren Patel
Hiren H. Patel
Package-X: A Mathematica package for the analytic calculation of one-loop integrals
Package files are available at http://packagex.hepforge.org
Comput.Phys.Commun. 197 (2015) 276-290
10.1016/j.cpc.2015.08.017
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Package-X, a Mathematica package for the analytic computation of one-loop integrals dimensionally regulated near 4 spacetime dimensions is described. Package-X computes arbitrarily high rank tensor integrals with up to three propagators, and gives compact expressions of UV divergent, IR divergent, and finite parts fo...
[ { "created": "Wed, 4 Mar 2015 21:00:34 GMT", "version": "v1" }, { "created": "Fri, 4 Sep 2015 09:46:18 GMT", "version": "v2" } ]
2015-12-01
[ [ "Patel", "Hiren H.", "" ] ]
Package-X, a Mathematica package for the analytic computation of one-loop integrals dimensionally regulated near 4 spacetime dimensions is described. Package-X computes arbitrarily high rank tensor integrals with up to three propagators, and gives compact expressions of UV divergent, IR divergent, and finite parts for ...
0708.0984
Olga Lakhina
O. Lakhina, P. Bicudo
Microscopic quark study of the eta and eta' masses
10 pages, 18 figures
null
null
null
hep-ph
null
We show that it is necessary to go beyond the BCS (rainbow-ladder) approximation to split the $\eta$ and $\eta'$ masses from the $\pi$ and K masses. We determine the self-consistent set of one-quark-loop diagrams both for the Schwinger-Dyson quark mass gap equation and for the Bethe-Salpeter quark-antiquark boundstat...
[ { "created": "Tue, 7 Aug 2007 16:26:39 GMT", "version": "v1" } ]
2007-08-08
[ [ "Lakhina", "O.", "" ], [ "Bicudo", "P.", "" ] ]
We show that it is necessary to go beyond the BCS (rainbow-ladder) approximation to split the $\eta$ and $\eta'$ masses from the $\pi$ and K masses. We determine the self-consistent set of one-quark-loop diagrams both for the Schwinger-Dyson quark mass gap equation and for the Bethe-Salpeter quark-antiquark boundstate ...
1606.07888
Anatoly Kotikov Vassilievich
A. V. Kotikov and B.G. Shaikhatdenov
Q2-evolution of parton densities at small x values. Charm contribution in the combined H1 and ZEUS F2 data
4 pages, 1 figure, talk given at the International Session-Conference SNP PSD RAS "Physics of Fundamental Interactions", April 12 - 15, 2016
null
10.1134/S1063779617050240
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Bessel-inspired behavior of parton densities at small x, obtained in the case of the flat initial conditions for DGLAP evolution equations, is used in the fixed flavor scheme to analyze precise H1+ZEUS combined data on the structure function F2.
[ { "created": "Sat, 25 Jun 2016 09:07:07 GMT", "version": "v1" }, { "created": "Sun, 18 Dec 2016 13:06:46 GMT", "version": "v2" } ]
2017-09-20
[ [ "Kotikov", "A. V.", "" ], [ "Shaikhatdenov", "B. G.", "" ] ]
The Bessel-inspired behavior of parton densities at small x, obtained in the case of the flat initial conditions for DGLAP evolution equations, is used in the fixed flavor scheme to analyze precise H1+ZEUS combined data on the structure function F2.
2112.15536
Atri Dey
Atri Dey and Jayita Lahiri
Collider Signatures of Type-X 2HDM + scalar singlet dark matter at HL-LHC
31 pages, 11 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
As the 125 GeV Higgs becomes disfavored as a portal to the dark sector, one is motivated to look beyond the SM-Higgs sector, into extended scalar-mediated portal mechanisms. In this work we consider one interesting possibility of such extended scalar sector, namely Type X two Higgs doublet with a scalar singlet dark ...
[ { "created": "Fri, 31 Dec 2021 16:23:24 GMT", "version": "v1" } ]
2022-01-03
[ [ "Dey", "Atri", "" ], [ "Lahiri", "Jayita", "" ] ]
As the 125 GeV Higgs becomes disfavored as a portal to the dark sector, one is motivated to look beyond the SM-Higgs sector, into extended scalar-mediated portal mechanisms. In this work we consider one interesting possibility of such extended scalar sector, namely Type X two Higgs doublet with a scalar singlet dark ma...
2109.11982
Martin Ebert
M. Ebert, H.-W. Hammer, A. Rusetsky
An alternative scheme for effective range corrections in pionless EFT
null
null
10.1140/epja/s10050-021-00637-y
null
hep-ph hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss an alternative scheme for including effective range corrections in pionless effective field theory. The standard approach treats range terms as perturbative insertions in the T -matrix. In a finite volume this scheme can lead to singular behavior close to the unperturbed energies. We consider an alternativ...
[ { "created": "Fri, 24 Sep 2021 14:14:44 GMT", "version": "v1" } ]
2022-01-05
[ [ "Ebert", "M.", "" ], [ "Hammer", "H. -W.", "" ], [ "Rusetsky", "A.", "" ] ]
We discuss an alternative scheme for including effective range corrections in pionless effective field theory. The standard approach treats range terms as perturbative insertions in the T -matrix. In a finite volume this scheme can lead to singular behavior close to the unperturbed energies. We consider an alternative ...
2301.03366
Leonid Slad
L.M.Slad
Hypothesis of a new fundamental interaction versus the particle oscillation concept
19 pages v3: A few additions and changes
null
null
null
hep-ph astro-ph.SR hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A significant part of the present work is devoted to proving that the basic elements of the particle oscillation concept either do not correspond to the principles of classical logic, or violate the energy-momentum conservation law, or contradict the quantum mechanical basis of coherence, or represent a primitive fal...
[ { "created": "Mon, 9 Jan 2023 14:18:53 GMT", "version": "v1" }, { "created": "Tue, 28 Feb 2023 13:28:53 GMT", "version": "v2" }, { "created": "Tue, 4 Jun 2024 13:02:46 GMT", "version": "v3" } ]
2024-06-05
[ [ "Slad", "L. M.", "" ] ]
A significant part of the present work is devoted to proving that the basic elements of the particle oscillation concept either do not correspond to the principles of classical logic, or violate the energy-momentum conservation law, or contradict the quantum mechanical basis of coherence, or represent a primitive false...
hep-ph/0105159
Concepcion Gonzalez-Garcia
M. C. Gonzalez-Garcia, Y. Grossman, A. Gusso and Y. Nir
New CP Violation in Neutrino Oscillations
ReVTeX, 28 pages, 7 figues. v2: Modifications in section VIII to reflect the fact that some of the couplings that were discussed in this section are irrelevant to our analysis (as pointed out in hep-ph/0112329); Added a discussion in section IX of the relevance of other future experiments that will search for l...
Phys.Rev.D64:096006,2001
10.1103/PhysRevD.64.096006
CERN-TH/2001-125, IFIC/01-23, WIS/9/01-May-DPP
hep-ph
null
Measurements of CP--violating observables in neutrino oscillation experiments have been studied in the literature as a way to determine the CP--violating phase in the mixing matrix for leptons. Here we show that such observables also probe new neutrino interactions in the production or detection processes. Genuine CP...
[ { "created": "Wed, 16 May 2001 15:33:59 GMT", "version": "v1" }, { "created": "Sun, 6 Jan 2002 14:12:29 GMT", "version": "v2" } ]
2010-05-28
[ [ "Gonzalez-Garcia", "M. C.", "" ], [ "Grossman", "Y.", "" ], [ "Gusso", "A.", "" ], [ "Nir", "Y.", "" ] ]
Measurements of CP--violating observables in neutrino oscillation experiments have been studied in the literature as a way to determine the CP--violating phase in the mixing matrix for leptons. Here we show that such observables also probe new neutrino interactions in the production or detection processes. Genuine CP v...
hep-ph/9810251
Afanasyev Leonid
I. Amirkhanov, I. Puzynin, A. Tarasov, O. Voskresenskaya and O. Zeinalova
The Influence of Strong Interaction on the Pionium Wave Functions at Small Distances
4 pages, 2 figures
Phys.Lett. B452 (1999) 155-158
10.1016/S0370-2693(99)00256-7
null
hep-ph
null
The influence of strong $\pi^+\pi^-$ interaction of the behaviour of pionium nS-state wave functions at small distance are investigated both analytically (perturbatively) and so numerically. It is shown that in the whole the accounting of strong interaction results in multiplying of pure Coulomb pionium wave function...
[ { "created": "Mon, 5 Oct 1998 15:19:19 GMT", "version": "v1" }, { "created": "Thu, 15 Oct 1998 08:51:16 GMT", "version": "v2" } ]
2009-10-31
[ [ "Amirkhanov", "I.", "" ], [ "Puzynin", "I.", "" ], [ "Tarasov", "A.", "" ], [ "Voskresenskaya", "O.", "" ], [ "Zeinalova", "O.", "" ] ]
The influence of strong $\pi^+\pi^-$ interaction of the behaviour of pionium nS-state wave functions at small distance are investigated both analytically (perturbatively) and so numerically. It is shown that in the whole the accounting of strong interaction results in multiplying of pure Coulomb pionium wave functions ...
2402.07661
Miguel Crispim Rom\~ao
Jorge Crispim Rom\~ao, Miguel Crispim Rom\~ao
Combining Evolutionary Strategies and Novelty Detection to go Beyond the Alignment Limit of the $Z_3$ 3HDM
49 pages, 15 figures, implementation available in https://gitlab.com/miguel.romao/evolutionary-strategy-novelty-detection-3hdm
null
null
IPPP/24/04, CFTP/24-002
hep-ph physics.comp-ph physics.data-an
http://creativecommons.org/licenses/by/4.0/
We present a novel Artificial Intelligence approach for Beyond the Standard Model parameter space scans by augmenting an Evolutionary Strategy with Novelty Detection. Our approach leverages the power of Evolutionary Strategies, previously shown to quickly converge to the valid regions of the parameter space, with a \...
[ { "created": "Mon, 12 Feb 2024 14:07:16 GMT", "version": "v1" } ]
2024-02-13
[ [ "Romão", "Jorge Crispim", "" ], [ "Romão", "Miguel Crispim", "" ] ]
We present a novel Artificial Intelligence approach for Beyond the Standard Model parameter space scans by augmenting an Evolutionary Strategy with Novelty Detection. Our approach leverages the power of Evolutionary Strategies, previously shown to quickly converge to the valid regions of the parameter space, with a \em...
1909.05496
Rafiqul Rahaman
Rafiqul Rahaman and Ritesh K. Singh
Probing the anomalous triple gauge boson couplings in $e^+e^-\to W^+W^-$ using $W$ polarizations with polarized beams
20 pages, 13 figures, 6 tables. This version supersedes arXiv:1711.04551
Phys. Rev. D 101, 075044 (2020)
10.1103/PhysRevD.101.075044
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the anomalous $W^+W^-V$ ($V=\gamma,Z$) couplings in $e^+e^-\to W^+W^-$ using the complete set of polarization observables of $W$ boson with longitudinally polarized electron ($e^-$) and positron ($e^+$) beams. For the effective $W^+W^-V$ couplings, we use the most general Lorentz invariant form factor parame...
[ { "created": "Thu, 12 Sep 2019 08:07:41 GMT", "version": "v1" }, { "created": "Wed, 15 Jul 2020 07:35:02 GMT", "version": "v2" } ]
2020-07-16
[ [ "Rahaman", "Rafiqul", "" ], [ "Singh", "Ritesh K.", "" ] ]
We study the anomalous $W^+W^-V$ ($V=\gamma,Z$) couplings in $e^+e^-\to W^+W^-$ using the complete set of polarization observables of $W$ boson with longitudinally polarized electron ($e^-$) and positron ($e^+$) beams. For the effective $W^+W^-V$ couplings, we use the most general Lorentz invariant form factor parametr...
2401.04931
Jia-Shu Niu
Jia-Shu Niu, Hui-Fang Xue
Possible Dark Matter Signals from White Dwarfs
10 pages, 2 figures, 1 table. Corrected typo errors and added references
null
null
null
hep-ph astro-ph.CO astro-ph.SR
http://creativecommons.org/licenses/by/4.0/
In our galaxy, the white dwarfs (WDs) will inevitably capture the dark matter (DM) particles streaming through them, if there exist interactions between DM particles and nuclei/electrons. At the same time, these DM particles can also be evaporated by the nuclei/electrons in a WD if they have proper mass and the WD is...
[ { "created": "Wed, 10 Jan 2024 05:01:03 GMT", "version": "v1" }, { "created": "Wed, 17 Jan 2024 04:49:10 GMT", "version": "v2" } ]
2024-01-18
[ [ "Niu", "Jia-Shu", "" ], [ "Xue", "Hui-Fang", "" ] ]
In our galaxy, the white dwarfs (WDs) will inevitably capture the dark matter (DM) particles streaming through them, if there exist interactions between DM particles and nuclei/electrons. At the same time, these DM particles can also be evaporated by the nuclei/electrons in a WD if they have proper mass and the WD is n...
hep-ph/0612322
Alessandro Papa
Dmitri Yu. Ivanov and Alessandro Papa
NLO BFKL at work: the electroproduction of two light vector mesons
7 pages, 4 figures; proceedings of DIFFRACTION 2006, Workshop on Diffraction in High-Energy Physics, Milos (Greece), Sep. 5-10, 2006
PoSDIFF2006:027,2006
null
null
hep-ph
null
The amplitude for the forward electroproduction of two light vector mesons can be written completely within perturbative QCD in the Regge limit with next-to-leading accuracy, thus providing the first example of a physical application of the BFKL approach at the next-to-leading order. Recently, a numerical determinati...
[ { "created": "Sat, 23 Dec 2006 19:48:42 GMT", "version": "v1" } ]
2008-11-26
[ [ "Ivanov", "Dmitri Yu.", "" ], [ "Papa", "Alessandro", "" ] ]
The amplitude for the forward electroproduction of two light vector mesons can be written completely within perturbative QCD in the Regge limit with next-to-leading accuracy, thus providing the first example of a physical application of the BFKL approach at the next-to-leading order. Recently, a numerical determination...
1206.3039
Paolo Bolzoni
Paolo Bolzoni
A new approach to gluon-quark multiplicity ratio
4 pages, 2 figures; presented at XX International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS2012), Bonn, Germany, March 26-30, 2012
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a new approach in considering and including both the perturbative and the nonperturbative contributions to the multiplicity ratio $r$ of gluon and quark jets. The new method is motivated by recent developments in timelike small-x resummation obtained in the $\bar{\rm MS}$ factorization scheme. A global ana...
[ { "created": "Thu, 14 Jun 2012 09:08:30 GMT", "version": "v1" }, { "created": "Fri, 6 Jul 2012 10:29:05 GMT", "version": "v2" } ]
2012-07-09
[ [ "Bolzoni", "Paolo", "" ] ]
We present a new approach in considering and including both the perturbative and the nonperturbative contributions to the multiplicity ratio $r$ of gluon and quark jets. The new method is motivated by recent developments in timelike small-x resummation obtained in the $\bar{\rm MS}$ factorization scheme. A global analy...
1501.04838
David M. Straub
Thomas Blake, Akimasa Ishikawa, David M. Straub
Summary of the CKM 2014 working group on rare decays
23 pages, 5 figures. To appear in the proceedings of the 8th International Workshop on the CKM Unitarity Triangle, 8-12 September 2014, Vienna
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Rare flavour changing neutral current decays of strange, charm and beauty hadrons have been instrumental in building up a picture of flavour in the Standard Model. Increasingly precise measurements of these decays allow to search for deviations from predictions of the Standard Model that would be associated to contri...
[ { "created": "Tue, 20 Jan 2015 15:10:02 GMT", "version": "v1" } ]
2015-01-21
[ [ "Blake", "Thomas", "" ], [ "Ishikawa", "Akimasa", "" ], [ "Straub", "David M.", "" ] ]
Rare flavour changing neutral current decays of strange, charm and beauty hadrons have been instrumental in building up a picture of flavour in the Standard Model. Increasingly precise measurements of these decays allow to search for deviations from predictions of the Standard Model that would be associated to contribu...
hep-ph/0701277
Feng Yuan
C.J. Bomhof, P.J. Mulders, W. Vogelsang, F. Yuan
Single-Transverse Spin Asymmetry in Dijet Correlations at Hadron Colliders
14 pages, 2 figures
Phys.Rev.D75:074019,2007
10.1103/PhysRevD.75.074019
BNL-NT-07/9, RBRC-648
hep-ph
null
We present a phenomenological study of the single-transverse spin asymmetry in azimuthal correlations of two jets produced nearly "back-to-back" in pp collisions at RHIC. We properly take into account the initial- and final-state interactions of partons that can generate this asymmetry in QCD hard-scattering. Using d...
[ { "created": "Wed, 31 Jan 2007 20:16:24 GMT", "version": "v1" } ]
2008-11-26
[ [ "Bomhof", "C. J.", "" ], [ "Mulders", "P. J.", "" ], [ "Vogelsang", "W.", "" ], [ "Yuan", "F.", "" ] ]
We present a phenomenological study of the single-transverse spin asymmetry in azimuthal correlations of two jets produced nearly "back-to-back" in pp collisions at RHIC. We properly take into account the initial- and final-state interactions of partons that can generate this asymmetry in QCD hard-scattering. Using dis...
hep-ph/0301159
Gino Isidori
Gino Isidori
Kaon decays and the flavour problem
10 pages, 6 figures, contribution to TH 2002 (Paris, July 2002)
Annales Henri Poincare 4 (2003) S97-S109
10.1007/s00023-003-0909-y
null
hep-ph
null
After a brief introduction to the so-called flavour problem, we discuss the role of rare K decays in probing the mechanism of quark-flavour mixing. Particular attention is devoted to the formulation of the Minimal Flavour Violation hypothesis, as a general and natural solution to the flavour problem, and to the funda...
[ { "created": "Mon, 20 Jan 2003 12:00:37 GMT", "version": "v1" } ]
2009-11-10
[ [ "Isidori", "Gino", "" ] ]
After a brief introduction to the so-called flavour problem, we discuss the role of rare K decays in probing the mechanism of quark-flavour mixing. Particular attention is devoted to the formulation of the Minimal Flavour Violation hypothesis, as a general and natural solution to the flavour problem, and to the fundame...
2402.06095
Craig Roberts
Yang Yu, Peng Cheng, Hui-Yu Xing, Fei Gao and Craig D. Roberts
Contact interaction study of proton parton distributions
23 pages, 15 figures, 6 tables. To appear in Eur. Phys. J. C
null
null
NJU-INP 083/24
hep-ph hep-ex hep-lat nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Using a symmetry-preserving formulation of a vector$\,\times\,$vector contact interaction (SCI) and treating the proton as a quark + interacting-diquark bound state, whose structure is obtained by solving a Poincar\'e-covariant Faddeev equation, we provide a comprehensive, coherent set of predictions for unpolarised ...
[ { "created": "Thu, 8 Feb 2024 23:03:58 GMT", "version": "v1" }, { "created": "Tue, 16 Jul 2024 09:44:27 GMT", "version": "v2" } ]
2024-07-17
[ [ "Yu", "Yang", "" ], [ "Cheng", "Peng", "" ], [ "Xing", "Hui-Yu", "" ], [ "Gao", "Fei", "" ], [ "Roberts", "Craig D.", "" ] ]
Using a symmetry-preserving formulation of a vector$\,\times\,$vector contact interaction (SCI) and treating the proton as a quark + interacting-diquark bound state, whose structure is obtained by solving a Poincar\'e-covariant Faddeev equation, we provide a comprehensive, coherent set of predictions for unpolarised an...
hep-ph/9611364
Dimitri Melikhov
Dmitri Melikhov
Exclusive semileptonic decays of heavy mesons in quark model
revtex, 8 pages, 1 figure In this version the $V_ub$ and $V_cb$ are recalculated for $\tau_{B_0}=1.56\pm0.06$ (in previous version $\tau_{B_0}=1.50\pm0.11$ was used) and several misprints are corrected
Phys.Lett.B394:385-394,1997
10.1016/S0370-2693(97)00048-8
null
hep-ph
null
Semileptonic decays $D\to K,K^*,\pi,\rho$, $D_s\to \eta,\eta',\phi$, and $B\to D,D^*,\pi,\rho$ are analyzed within the dispersion formulation of the quark model. The form factors at timelike $q$ are derived by the analytical continuation from spacelike $q$ in the form factors of the relativistic light--cone quark mod...
[ { "created": "Tue, 19 Nov 1996 16:13:07 GMT", "version": "v1" }, { "created": "Wed, 8 Jan 1997 16:17:58 GMT", "version": "v2" } ]
2010-11-23
[ [ "Melikhov", "Dmitri", "" ] ]
Semileptonic decays $D\to K,K^*,\pi,\rho$, $D_s\to \eta,\eta',\phi$, and $B\to D,D^*,\pi,\rho$ are analyzed within the dispersion formulation of the quark model. The form factors at timelike $q$ are derived by the analytical continuation from spacelike $q$ in the form factors of the relativistic light--cone quark model...
1312.2303
Thomas J. Humanic
T. J. Humanic
Extracting the hadronization timescale in sqrt{s}=7 TeV proton-proton collisions from pion and kaon femtoscopy
13 pages, 5 figures, accepted for publication in J. Phys. G
null
10.1088/0954-3899/41/7/075105
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A hadronic rescattering model with the proper hadronization time width as the free parameter is compared with charged pion and charged and neutral kaon femtoscopy measurements from the LHC ALICE experiment for sqrt{s}=7 TeV proton-proton collisions. Comparisons between the model and measurements are made for one-dime...
[ { "created": "Mon, 9 Dec 2013 04:06:14 GMT", "version": "v1" }, { "created": "Fri, 9 May 2014 14:20:50 GMT", "version": "v2" } ]
2015-06-18
[ [ "Humanic", "T. J.", "" ] ]
A hadronic rescattering model with the proper hadronization time width as the free parameter is compared with charged pion and charged and neutral kaon femtoscopy measurements from the LHC ALICE experiment for sqrt{s}=7 TeV proton-proton collisions. Comparisons between the model and measurements are made for one-dimens...
1108.4806
John Gracey
J.A. Gracey
Two loop QCD vertices at the symmetric point
36 latex pages, anc directory contains txt file with anomalous dimensions, beta-functions, coupling constant mappings, conversion functions and amplitudes in analytic form
null
10.1103/PhysRevD.84.085011
LTH 921
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We compute the triple gluon, quark-gluon and ghost-gluon vertices of QCD at the symmetric subtraction point at two loops in the MSbar scheme. In addition we renormalize each of the three vertices in their respective momentum subtraction schemes, MOMggg, MOMq and MOMh. The conversion functions of all the wave function...
[ { "created": "Wed, 24 Aug 2011 10:56:01 GMT", "version": "v1" } ]
2015-05-30
[ [ "Gracey", "J. A.", "" ] ]
We compute the triple gluon, quark-gluon and ghost-gluon vertices of QCD at the symmetric subtraction point at two loops in the MSbar scheme. In addition we renormalize each of the three vertices in their respective momentum subtraction schemes, MOMggg, MOMq and MOMh. The conversion functions of all the wave functions,...
hep-ph/0606077
Fedor Simkovic
Marek Gozdz, Wieslaw A. Kaminski, Fedor Simkovic, Amand Faessler
Transition magnetic moments of Majorana neutrinos in supersymmetry without R-parity in light of neutrino oscillations
12 pages including 1 eps figure
Phys.Rev.D74:055007,2006
10.1103/PhysRevD.74.055007
null
hep-ph
null
The transition magnetic moments of Majorana neutrinos are calculated in grand unified theory (GUT) constrained Minimal Supersymmetric Standard Model (MSSM) with explicit R-parity violation. It is assumed that neutrinos acquire masses via one-loop (quark-squark and lepton-slepton) radiative corrections. The mixing of ...
[ { "created": "Wed, 7 Jun 2006 12:55:43 GMT", "version": "v1" } ]
2008-11-26
[ [ "Gozdz", "Marek", "" ], [ "Kaminski", "Wieslaw A.", "" ], [ "Simkovic", "Fedor", "" ], [ "Faessler", "Amand", "" ] ]
The transition magnetic moments of Majorana neutrinos are calculated in grand unified theory (GUT) constrained Minimal Supersymmetric Standard Model (MSSM) with explicit R-parity violation. It is assumed that neutrinos acquire masses via one-loop (quark-squark and lepton-slepton) radiative corrections. The mixing of sq...
2101.07105
Yong-Liang Ma
Qing-Sen Chen, Hui-Feng Fu, Yong-Liang Ma and Qing Wang
Chiral effective Lagrangian for excited heavy-light mesons from QCD
7 pages. arXiv admin note: text overlap with arXiv:2012.03733
null
10.1088/1572-9494/abee71
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We derive the chiral effective Lagrangian for excited heavy-light mesons from QCD under proper approximations. We focus on the chiral partners with $j_l^P=\frac{3}{2}^+$ and $j_l^P=\frac{3}{2}^-$ which amounts to ($1^+,2^+$) and ($1^-,2^-$) states respectively. The low energy constants including the masses of the chi...
[ { "created": "Mon, 18 Jan 2021 15:07:35 GMT", "version": "v1" } ]
2021-05-26
[ [ "Chen", "Qing-Sen", "" ], [ "Fu", "Hui-Feng", "" ], [ "Ma", "Yong-Liang", "" ], [ "Wang", "Qing", "" ] ]
We derive the chiral effective Lagrangian for excited heavy-light mesons from QCD under proper approximations. We focus on the chiral partners with $j_l^P=\frac{3}{2}^+$ and $j_l^P=\frac{3}{2}^-$ which amounts to ($1^+,2^+$) and ($1^-,2^-$) states respectively. The low energy constants including the masses of the chira...
1008.3106
Amine Ahriche
Amine Ahriche (Jijel U.) and Salah Nasri (United Arab Emirates U.)
Electroweak Phase Transition in the U(1)' MSSM
substantial changes, references added, 18 pages, 4 figures
Phys.Rev.D83:045032,2011
10.1103/PhysRevD.83.045032
LPTh-Ji 10/004
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, we have investigated the nature of the electroweak phase transition in the U(1) extended minimal supersymmetric standard model without introducing any exotic fields. The effective potential has been estimated exactly at finite temperature taking into account the whole particle spectrum. For reasonable v...
[ { "created": "Wed, 18 Aug 2010 15:18:50 GMT", "version": "v1" }, { "created": "Tue, 24 Aug 2010 13:42:25 GMT", "version": "v2" }, { "created": "Fri, 25 Feb 2011 22:10:23 GMT", "version": "v3" } ]
2011-03-23
[ [ "Ahriche", "Amine", "", "Jijel U." ], [ "Nasri", "Salah", "", "United Arab Emirates U." ] ]
In this work, we have investigated the nature of the electroweak phase transition in the U(1) extended minimal supersymmetric standard model without introducing any exotic fields. The effective potential has been estimated exactly at finite temperature taking into account the whole particle spectrum. For reasonable val...
1905.03254
Jeffrey Berryman
Jeffrey M. Berryman
Constraining Sterile Neutrino Cosmology with Terrestrial Oscillation Experiments
16 pages, 9 figures
Phys. Rev. D 100, 023540 (2019)
10.1103/PhysRevD.100.023540
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore the complementarity between terrestrial neutrino oscillation experiments and astrophysical/cosmological measurements in probing the existence of sterile neutrinos. We find that upcoming accelerator neutrino experiments will not improve on constraints by the time they are operational, but that reactor exper...
[ { "created": "Wed, 8 May 2019 18:00:00 GMT", "version": "v1" } ]
2019-07-31
[ [ "Berryman", "Jeffrey M.", "" ] ]
We explore the complementarity between terrestrial neutrino oscillation experiments and astrophysical/cosmological measurements in probing the existence of sterile neutrinos. We find that upcoming accelerator neutrino experiments will not improve on constraints by the time they are operational, but that reactor experim...
2008.04310
Guillem Dom\`enech
Guillem Dom\`enech, Mark Goodsell and Christof Wetterich
Neutrino masses, vacuum stability and quantum gravity prediction for the mass of the top quark
18 pages, 16 figures. v2: Matches published version. We also corrected a typo in eq.(2.7)
null
10.1007/JHEP01(2021)180
null
hep-ph gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A general prediction from asymptotically safe quantum gravity is the approximate vanishing of all quartic scalar couplings at the UV fixed point beyond the Planck scale. A vanishing Higgs doublet quartic coupling near the Planck scale translates into a prediction for the ratio between the mass of the Higgs boson $M_H...
[ { "created": "Mon, 10 Aug 2020 18:00:00 GMT", "version": "v1" }, { "created": "Tue, 19 Sep 2023 10:41:06 GMT", "version": "v2" } ]
2023-09-20
[ [ "Domènech", "Guillem", "" ], [ "Goodsell", "Mark", "" ], [ "Wetterich", "Christof", "" ] ]
A general prediction from asymptotically safe quantum gravity is the approximate vanishing of all quartic scalar couplings at the UV fixed point beyond the Planck scale. A vanishing Higgs doublet quartic coupling near the Planck scale translates into a prediction for the ratio between the mass of the Higgs boson $M_H$ ...
2107.01683
Vo Quoc Phong
Vo Quoc Phong and Ngo Phuc Duc Loc
Constraint on the Higgs-Dilaton potential via Warm inflation in Two-Time Physics
15 pages and 2 figures
Advances in High Energy Physics, Vol.2022, 5313952 (2022)
10.1155/2022/5313952
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Within the $SP(2,R)$ symmetry, the Two-time model (2T model) has six dimensions with two dimensions of time and the dilaton field that can be identified as inflaton in a warm inflation scenario with potential of the form $\sim\phi^4$. From that consideration, we derive the range of parameters for the Higgs-Dilaton po...
[ { "created": "Sun, 4 Jul 2021 16:58:30 GMT", "version": "v1" }, { "created": "Thu, 6 Jan 2022 17:40:39 GMT", "version": "v2" }, { "created": "Wed, 16 Feb 2022 19:57:27 GMT", "version": "v3" }, { "created": "Tue, 26 Apr 2022 23:37:37 GMT", "version": "v4" }, { "cre...
2022-10-07
[ [ "Phong", "Vo Quoc", "" ], [ "Loc", "Ngo Phuc Duc", "" ] ]
Within the $SP(2,R)$ symmetry, the Two-time model (2T model) has six dimensions with two dimensions of time and the dilaton field that can be identified as inflaton in a warm inflation scenario with potential of the form $\sim\phi^4$. From that consideration, we derive the range of parameters for the Higgs-Dilaton pote...
2310.18674
Peter Meinzinger
Stefan Hoeche, Frank Krauss, Peter Meinzinger
Resolved Photons in Sherpa
null
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We present the first complete simulation framework, in the Sherpa event generator, for resolved photon interactions at next-to leading order accuracy. It includes photon spectra obtained through the equivalent-photon approximation, parton distribution functions to parametrize the hadronic structure of quasi-real phot...
[ { "created": "Sat, 28 Oct 2023 11:00:49 GMT", "version": "v1" } ]
2023-10-31
[ [ "Hoeche", "Stefan", "" ], [ "Krauss", "Frank", "" ], [ "Meinzinger", "Peter", "" ] ]
We present the first complete simulation framework, in the Sherpa event generator, for resolved photon interactions at next-to leading order accuracy. It includes photon spectra obtained through the equivalent-photon approximation, parton distribution functions to parametrize the hadronic structure of quasi-real photon...
2205.10380
Radha Mastandrea
Barry M. Dillon, Radha Mastandrea, and Benjamin Nachman
Self-supervised Anomaly Detection for New Physics
13 pages, 12 figures. minor updates, v2 (published version)
Phys. Rev. D 106, 056005 (2022)
10.1103/PhysRevD.106.056005
null
hep-ph hep-ex physics.data-an
http://creativecommons.org/licenses/by/4.0/
We investigate a method of model-agnostic anomaly detection through studying jets, collimated sprays of particles produced in high-energy collisions. We train a transformer neural network to encode simulated QCD "event space" dijets into a low-dimensional "latent space" representation. We optimize the network using t...
[ { "created": "Fri, 20 May 2022 18:00:03 GMT", "version": "v1" }, { "created": "Mon, 15 May 2023 20:22:07 GMT", "version": "v2" } ]
2023-05-17
[ [ "Dillon", "Barry M.", "" ], [ "Mastandrea", "Radha", "" ], [ "Nachman", "Benjamin", "" ] ]
We investigate a method of model-agnostic anomaly detection through studying jets, collimated sprays of particles produced in high-energy collisions. We train a transformer neural network to encode simulated QCD "event space" dijets into a low-dimensional "latent space" representation. We optimize the network using the...
2112.11248
Sara Taheri Monfared
H. Jung, S. Steel, S. Taheri Monfared, Y. Zhou
TMDs from Monte Carlo event generators
Part of the DESY summer student program 2021
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Transverse Momentum Dependent (TMD) parton distributions are a very powerful concept for the description of low and high transverse momentum effects in high energy collisions. The Parton Branching (PB) method provides TMD distributions which can be used in parton shower simulations, as already implemented in \cascade...
[ { "created": "Tue, 21 Dec 2021 14:17:26 GMT", "version": "v1" } ]
2021-12-22
[ [ "Jung", "H.", "" ], [ "Steel", "S.", "" ], [ "Monfared", "S. Taheri", "" ], [ "Zhou", "Y.", "" ] ]
Transverse Momentum Dependent (TMD) parton distributions are a very powerful concept for the description of low and high transverse momentum effects in high energy collisions. The Parton Branching (PB) method provides TMD distributions which can be used in parton shower simulations, as already implemented in \cascade\ ...
hep-ph/0506001
Maria Simone Kugeratski Souza Ms.
M.S. Kugeratski and F.S. Navarra
Chromoelectric fields and quarkonium-hadron interactions at high energies
To appear in Physical Review C, 24 pages, 10 eps figures
Phys.Rev. C71 (2005) 065206
10.1103/PhysRevC.71.065206
null
hep-ph
null
We develop a simple model to study the heavy quarkonium-hadron cross section in the high energy limit. The hadron is represented by an external electric color field (capacitor) and the heavy quarkonium is represented by a small color dipole. Using high energy approximations we compute the relevant cross sections, whi...
[ { "created": "Wed, 1 Jun 2005 18:35:39 GMT", "version": "v1" } ]
2016-09-06
[ [ "Kugeratski", "M. S.", "" ], [ "Navarra", "F. S.", "" ] ]
We develop a simple model to study the heavy quarkonium-hadron cross section in the high energy limit. The hadron is represented by an external electric color field (capacitor) and the heavy quarkonium is represented by a small color dipole. Using high energy approximations we compute the relevant cross sections, which...
hep-ph/0408119
Simon Turbide
Simon Turbide (McGill U.), Ralf Rapp (Texas A&M U.), and Charles Gale (McGill U.)
Photon production in relativistic nuclear collisions at SPS and RHIC energies
Work presented at the 26th annual Montreal-Rochester-Syracuse-Toronto conference (MRST 2004) on high energy physics, Montreal, QC, Canada, 12-14 May 2004. 8 pages, 3 figures
Int.J.Mod.Phys. A19 (2004) 5351-5358
10.1142/S0217751X0402258X
null
hep-ph nucl-th
null
Chiral Lagrangians are used to compute the production rate of photons from the hadronic phase of relativistic nuclear collisions. Special attention is paid to the role of the pseudovector a_1 meson. Calculations that include reactions with strange mesons, hadronic form factors and vector spectral densities consistent...
[ { "created": "Mon, 9 Aug 2004 20:03:29 GMT", "version": "v1" } ]
2009-11-10
[ [ "Turbide", "Simon", "", "McGill U." ], [ "Rapp", "Ralf", "", "Texas A&M U." ], [ "Gale", "Charles", "", "McGill U." ] ]
Chiral Lagrangians are used to compute the production rate of photons from the hadronic phase of relativistic nuclear collisions. Special attention is paid to the role of the pseudovector a_1 meson. Calculations that include reactions with strange mesons, hadronic form factors and vector spectral densities consistent w...
hep-ph/0302039
Orlando L. G. Peres
H. Nunokawa, O. L. G. Peres and R. Zukanovich Funchal
Probing the LSND scale and four neutrino scenarios with a neutrino telescope
LATEX file, with 9 pages, and 4 figures. Update version with one new figure
Phys.Lett.B562:279-290,2003
10.1016/S0370-2693(03)00603-8
IFT-P.007/2003, IFUSP-DFN/03-079, NSF-ITP-03-09
hep-ph astro-ph hep-ex
null
We show in this paper that the observation of the angular distribution of upward-going muons and cascade events induced by atmospheric neutrinos at the TeV energy scale, which can be performed by a kilometer-scale neutrino telescope, such as the IceCube detector, can be used to probe a large neutrino mass splitting, ...
[ { "created": "Wed, 5 Feb 2003 20:59:04 GMT", "version": "v1" }, { "created": "Fri, 25 Apr 2003 18:20:00 GMT", "version": "v2" } ]
2014-11-17
[ [ "Nunokawa", "H.", "" ], [ "Peres", "O. L. G.", "" ], [ "Funchal", "R. Zukanovich", "" ] ]
We show in this paper that the observation of the angular distribution of upward-going muons and cascade events induced by atmospheric neutrinos at the TeV energy scale, which can be performed by a kilometer-scale neutrino telescope, such as the IceCube detector, can be used to probe a large neutrino mass splitting, $|...
1104.2750
Gilles Vertongen
W. Buchmuller, K. Schmitz, G. Vertongen
Entropy, Baryon Asymmetry and Dark Matter from Heavy Neutrino Decays
68 pages, 15 figures, 5 tables ; v2: minor changes, matches NPB published version
Nucl.Phys. B851 (2011) 481-532
10.1016/j.nuclphysb.2011.06.004
DESY 11-002
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The origin of the hot phase of the early universe remains so far an unsolved puzzle. A viable option is entropy production through the decays of heavy Majorana neutrinos whose lifetimes determine the initial temperature. We show that baryogenesis and the production of dark matter are natural by-products of this mecha...
[ { "created": "Thu, 14 Apr 2011 13:01:21 GMT", "version": "v1" }, { "created": "Tue, 4 Oct 2011 08:21:45 GMT", "version": "v2" } ]
2015-05-27
[ [ "Buchmuller", "W.", "" ], [ "Schmitz", "K.", "" ], [ "Vertongen", "G.", "" ] ]
The origin of the hot phase of the early universe remains so far an unsolved puzzle. A viable option is entropy production through the decays of heavy Majorana neutrinos whose lifetimes determine the initial temperature. We show that baryogenesis and the production of dark matter are natural by-products of this mechani...
hep-ph/0311288
Feng Yuan
Feng Yuan
Generalized Parton Distributions at x->1
7 pages, 2 figures
Phys.Rev. D69 (2004) 051501
10.1103/PhysRevD.69.051501
DOE/ER/40762-298, UM-PP#04-007
hep-ph
null
Generalized parton distributions at large $x$ are studied in perturbative QCD approach. As $x\to 1$ and at finite $t$, there is no $t$ dependence for the GPDs which means that the active quark is at the center of the transverse space. We also obtain the power behavior: $H_q^\pi(x,\xi,t)\sim (1-x)^2/(1-\xi^2)$ for pio...
[ { "created": "Sat, 22 Nov 2003 04:06:46 GMT", "version": "v1" } ]
2009-11-10
[ [ "Yuan", "Feng", "" ] ]
Generalized parton distributions at large $x$ are studied in perturbative QCD approach. As $x\to 1$ and at finite $t$, there is no $t$ dependence for the GPDs which means that the active quark is at the center of the transverse space. We also obtain the power behavior: $H_q^\pi(x,\xi,t)\sim (1-x)^2/(1-\xi^2)$ for pion;...
hep-ph/0311061
V. Gogohia
V. Gogohia
Intrinsically nonperturbative QCD I. A pure dynamical theory of gluon confinement
46 pages, no figures, no tables, typos are corrected, some material is omitted and some is edded in order to clarify our approach, afew new references are also added
null
null
null
hep-ph hep-th
null
We establish exactly and uniquely the infrared structure of the full gluon propagator in QCD, not solving explicitly the corresponding dynamical equation of motion. By construction, this structure is an infinite sum over all possible severe (i.e., more singular than $1/q^2$) infrared singularities. It reflects the ze...
[ { "created": "Wed, 5 Nov 2003 14:56:20 GMT", "version": "v1" }, { "created": "Thu, 27 Nov 2003 14:39:55 GMT", "version": "v2" }, { "created": "Wed, 10 Mar 2004 12:55:08 GMT", "version": "v3" }, { "created": "Wed, 7 Apr 2004 11:23:59 GMT", "version": "v4" }, { "cre...
2007-05-23
[ [ "Gogohia", "V.", "" ] ]
We establish exactly and uniquely the infrared structure of the full gluon propagator in QCD, not solving explicitly the corresponding dynamical equation of motion. By construction, this structure is an infinite sum over all possible severe (i.e., more singular than $1/q^2$) infrared singularities. It reflects the zero...
hep-ph/0008279
Nora Brambilla
Nora Brambilla (ITP Heidelberg)
pNRQCD: concepts and applications
13 pages, sprocl.sty, Talk given at the Fourth Workshop on Continuous Advances in QCD, Minneapolis (MN), May 12-14, 2000; corrected some typos in one equation and in the references
Proceedings of the Workshop 'Continuous advances in QCD', Ed. M. Voloshin, World Scientific 2001, pags.314-326
null
HD-THEP-00-42
hep-ph hep-lat
null
Heavy quark bound state systems, mesons and hybrids, are discussed in the framework of the QCD effective field theory called potential Non-Relativistic QCD.
[ { "created": "Sat, 26 Aug 2000 23:03:33 GMT", "version": "v1" }, { "created": "Wed, 30 Aug 2000 17:16:08 GMT", "version": "v2" } ]
2007-05-23
[ [ "Brambilla", "Nora", "", "ITP Heidelberg" ] ]
Heavy quark bound state systems, mesons and hybrids, are discussed in the framework of the QCD effective field theory called potential Non-Relativistic QCD.
hep-ph/9803327
A. Khodjamirian
K. Kolodziej and R. R\"uckl
On the energy dependence of hadronic $B_c$ production
5 pages, 1 figure, Latex; Contribution to the 5th International Workshop on $B$-Physics at Hadron Machines, 1997, Los Angeles, California, USA
Nucl.Instrum.Meth. A408 (1998) 33-35
10.1016/S0168-9002(98)00360-X
null
hep-ph
null
An estimate is presented of the production cross section of $B_c$ mesons between threshold and LHC energies using lowest-order perturbation theory and non-relativistic bound state approximation. It is shown that the ratio of the production cross sections for $B_c$ mesons and for $b$ quarks varies strongly with energy...
[ { "created": "Thu, 12 Mar 1998 17:10:03 GMT", "version": "v1" } ]
2015-06-25
[ [ "Kolodziej", "K.", "" ], [ "Rückl", "R.", "" ] ]
An estimate is presented of the production cross section of $B_c$ mesons between threshold and LHC energies using lowest-order perturbation theory and non-relativistic bound state approximation. It is shown that the ratio of the production cross sections for $B_c$ mesons and for $b$ quarks varies strongly with energy.
1605.09294
Felix Karbstein
Felix Karbstein, Chantal Sundqvist
Probing vacuum birefringence using x-ray free electron and optical high-intensity lasers
23 pages, 4 figures
Phys. Rev. D 94, 013004 (2016)
10.1103/PhysRevD.94.013004
null
hep-ph physics.optics quant-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Vacuum birefringence is one of the most striking predictions of strong field quantum electrodynamics: Probe photons traversing a strong field region can indirectly sense the applied "pump" electromagnetic field via quantum fluctuations of virtual charged particles which couple to both pump and probe fields. This coup...
[ { "created": "Mon, 30 May 2016 16:03:26 GMT", "version": "v1" } ]
2016-07-08
[ [ "Karbstein", "Felix", "" ], [ "Sundqvist", "Chantal", "" ] ]
Vacuum birefringence is one of the most striking predictions of strong field quantum electrodynamics: Probe photons traversing a strong field region can indirectly sense the applied "pump" electromagnetic field via quantum fluctuations of virtual charged particles which couple to both pump and probe fields. This coupli...
1804.00131
David A. Kosower
David A. Kosower
Direct Solution of Integration-by-Parts Systems
43 pages, 3 figures
Phys. Rev. D 98, 025008 (2018)
10.1103/PhysRevD.98.025008
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Systems of integration-by-parts identities play an important role in simplifying the higher-loop Feynman integrals that arise in quantum field theory. Solving these systems is equivalent to reducing integrals containing numerator products of irreducible invariants to a small set of master integrals. I present a new a...
[ { "created": "Sat, 31 Mar 2018 07:59:56 GMT", "version": "v1" } ]
2018-07-18
[ [ "Kosower", "David A.", "" ] ]
Systems of integration-by-parts identities play an important role in simplifying the higher-loop Feynman integrals that arise in quantum field theory. Solving these systems is equivalent to reducing integrals containing numerator products of irreducible invariants to a small set of master integrals. I present a new app...
2312.11731
Eamonn Weitz
Jacopo Ghiglieri, Philipp Schicho, Niels Schlusser, Eamonn Weitz
The force-force correlator at the hard thermal scale of hot QCD
42 pages, 2 figures, 2 tables. v2: clarifications added, minor typographical fixes, matches JHEP version
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
High-energy particles traversing the Quark-Gluon plasma experience modified (massive) dispersion, although their vacuum mass is negligible compared to the kinetic energy. Due to poor convergence of the perturbative series in the regime of soft loop momenta, a more precise determination of this effective mass is neede...
[ { "created": "Mon, 18 Dec 2023 22:14:20 GMT", "version": "v1" }, { "created": "Tue, 26 Mar 2024 14:56:23 GMT", "version": "v2" } ]
2024-03-27
[ [ "Ghiglieri", "Jacopo", "" ], [ "Schicho", "Philipp", "" ], [ "Schlusser", "Niels", "" ], [ "Weitz", "Eamonn", "" ] ]
High-energy particles traversing the Quark-Gluon plasma experience modified (massive) dispersion, although their vacuum mass is negligible compared to the kinetic energy. Due to poor convergence of the perturbative series in the regime of soft loop momenta, a more precise determination of this effective mass is needed....
1705.10230
Zhan Sun
Zhan Sun, Xiong Deng, Hai Bing Fu
$\mathcal O(\alpha^{3}\alpha_s)$ Study on the yields and polarizations of $J/\psi(\Upsilon)$ within the framework of non-relativistic QCD via $\gamma\gamma \to J/\psi(\Upsilon)+\gamma+X$ at CEPC
null
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Within the framework of the non-relativistic QCD (NRQCD), we make a systematical study of the yields and polarizations of $J/\psi$ and $\Upsilon$ via $\gamma \gamma \to J/\psi(\Upsilon)+\gamma+X$ in photon-photon collisions at the Circular Electron Positron Collider (CEPC), up to $\mathcal O(\alpha^{3}\alpha_s)$. We ...
[ { "created": "Mon, 29 May 2017 15:01:48 GMT", "version": "v1" } ]
2017-05-30
[ [ "Sun", "Zhan", "" ], [ "Deng", "Xiong", "" ], [ "Fu", "Hai Bing", "" ] ]
Within the framework of the non-relativistic QCD (NRQCD), we make a systematical study of the yields and polarizations of $J/\psi$ and $\Upsilon$ via $\gamma \gamma \to J/\psi(\Upsilon)+\gamma+X$ in photon-photon collisions at the Circular Electron Positron Collider (CEPC), up to $\mathcal O(\alpha^{3}\alpha_s)$. We fi...
1205.1554
Kirill Tuchin
D.E. Kharzeev, E.M. Levin, K. Tuchin
Nuclear modification of the J/Psi transverse momentum distributions in high energy pA and AA collisions
19 pages; v2: typos fixed, discussion improved
null
null
null
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We evaluate the transverse momentum spectrum of J/Psi (up to semi-hard momenta) in pA and AA collisions taking into account only the initial state effects, but resumming them to all orders in \alpha_s^2 A^{1/3}. In our previous papers we noticed that cold nuclear matter effects alone could not explain the experimenta...
[ { "created": "Mon, 7 May 2012 22:22:24 GMT", "version": "v1" }, { "created": "Tue, 18 Feb 2014 15:09:12 GMT", "version": "v2" } ]
2014-02-19
[ [ "Kharzeev", "D. E.", "" ], [ "Levin", "E. M.", "" ], [ "Tuchin", "K.", "" ] ]
We evaluate the transverse momentum spectrum of J/Psi (up to semi-hard momenta) in pA and AA collisions taking into account only the initial state effects, but resumming them to all orders in \alpha_s^2 A^{1/3}. In our previous papers we noticed that cold nuclear matter effects alone could not explain the experimental ...
hep-ph/9509425
null
Manuel Drees, Madison
Testing superstring-inspired E(6) models at linear e+e- colliders
7 pages, LaTeX with equation.sty, 2 figures (not included); talk given at LCWS95, Iwate, Japan. A complete PS files, including figures, can be obtained via anonymous ftp from ftp://phenom.physics.wisc.edu/pub/preprints/1995/madph-95-908.ps.Z
null
null
MADPH-95-908
hep-ph
null
It is shown that in a large class of E(6) models, either an e+e- collider operating at $\rs \geq 1.5$ TeV must find a signal for the production of exotic leptons, or a collider operating at $\rs \geq 300$ GeV must find at least one light neutral Higgs boson with a large invisible branching ratio. The region of parame...
[ { "created": "Fri, 29 Sep 1995 19:14:00 GMT", "version": "v1" } ]
2007-05-23
[ [ "Drees", "Manuel", "" ], [ "Madison", "", "" ] ]
It is shown that in a large class of E(6) models, either an e+e- collider operating at $\rs \geq 1.5$ TeV must find a signal for the production of exotic leptons, or a collider operating at $\rs \geq 300$ GeV must find at least one light neutral Higgs boson with a large invisible branching ratio. The region of paramete...
hep-ph/0606177
Zhenjun Xiao
Zhen-jun Xiao, Xin Liu, and Hui-sheng Wang
Branching Ratio and CP Asymmetry of $B_s \to \pi^0 \eta^{(\prime)}$ Decays in the perturbative QCD Approach
15 pages 3 eps figures
Phys.Rev.D75:034017,2007
10.1103/PhysRevD.75.034017
NJNU-TH-06-22
hep-ph hep-ex
null
We calculate the branching ratios and CP-violating asymmetries for $B_s^0 \to \pi^0 \eta^{(\prime)}$ decays in the perturbative QCD (pQCD) factorization approach here. We not only calculate the usual factorizable contributions, but also evaluate the non-factorizable and annihilation type contributions. The pQCD predi...
[ { "created": "Fri, 16 Jun 2006 06:11:30 GMT", "version": "v1" } ]
2009-09-29
[ [ "Xiao", "Zhen-jun", "" ], [ "Liu", "Xin", "" ], [ "Wang", "Hui-sheng", "" ] ]
We calculate the branching ratios and CP-violating asymmetries for $B_s^0 \to \pi^0 \eta^{(\prime)}$ decays in the perturbative QCD (pQCD) factorization approach here. We not only calculate the usual factorizable contributions, but also evaluate the non-factorizable and annihilation type contributions. The pQCD predict...
hep-ph/9303295
Sharon Vadas
Sharon L. Vadas
Numerical Evolution of General Relativistic Voids
37 pages plus 12 figures (upon request-- vasha@fnas11.fnal.gov) LaTeX, FNAL-PUB-93/005-A
Phys.Rev. D48 (1993) 4562-4594
10.1103/PhysRevD.48.4562
null
hep-ph astro-ph gr-qc
null
In this paper, we study the evolution of a relativistic, superhorizon-sized void embedded in a Friedmann-Robertson-Walker universe. We numerically solve the spherically symmetric general relativistic equations in comoving, synchronous coordinates. Initially, the fluid inside the void is taken to be homogeneous and no...
[ { "created": "Tue, 23 Mar 1993 20:15:20 GMT", "version": "v1" } ]
2009-10-22
[ [ "Vadas", "Sharon L.", "" ] ]
In this paper, we study the evolution of a relativistic, superhorizon-sized void embedded in a Friedmann-Robertson-Walker universe. We numerically solve the spherically symmetric general relativistic equations in comoving, synchronous coordinates. Initially, the fluid inside the void is taken to be homogeneous and none...
2102.06262
Yoxara S\'anchez Villamizar
T\'essio B. de Melo, Sergey Kovalenko, Farinaldo S. Queiroz, C. Siqueira and Yoxara S. Villamizar
Rare Kaon Decay to Missing Energy: Implications of the NA62 Result for a $Z^\prime$ Model
null
Phys. Rev. D 103, 115001 (2021)
10.1103/PhysRevD.103.115001
null
hep-ph
http://creativecommons.org/licenses/by-sa/4.0/
Meson decays offer a good opportunity to probe new physics. The rare kaon decay $K^+ \rightarrow \pi^+ \nu\bar{\nu}$ is one of the cleanest of them and, for this reason, is rather sensitive to new physics, in particular, vector mediators. NA62 collaboration, running a fixed-target experiment at CERN, recently reporte...
[ { "created": "Thu, 11 Feb 2021 20:40:12 GMT", "version": "v1" } ]
2021-06-09
[ [ "de Melo", "Téssio B.", "" ], [ "Kovalenko", "Sergey", "" ], [ "Queiroz", "Farinaldo S.", "" ], [ "Siqueira", "C.", "" ], [ "Villamizar", "Yoxara S.", "" ] ]
Meson decays offer a good opportunity to probe new physics. The rare kaon decay $K^+ \rightarrow \pi^+ \nu\bar{\nu}$ is one of the cleanest of them and, for this reason, is rather sensitive to new physics, in particular, vector mediators. NA62 collaboration, running a fixed-target experiment at CERN, recently reported ...
hep-ph/9803213
Tsuguo Mogami
T. Mogami
Non-perturbative solutions of the SD equation for an Abelian gauge field theory
6 pages, no figure
Mod.Phys.Lett. A13 (1998) 1887-1892
10.1142/S0217732398001984
TIT/HEP-388
hep-ph
null
In this article we present a mechanism in which we find new non-perturbative solutions of quantum electrodynamics in four dimensions. Two non-perturbative solutions are found for approximate Schwinger-Dyson equations. The mass ratio of the three solutions (one is ordinary solution) is approximately $1:(8\pi/\alpha)^{...
[ { "created": "Mon, 2 Mar 1998 10:13:56 GMT", "version": "v1" } ]
2009-10-31
[ [ "Mogami", "T.", "" ] ]
In this article we present a mechanism in which we find new non-perturbative solutions of quantum electrodynamics in four dimensions. Two non-perturbative solutions are found for approximate Schwinger-Dyson equations. The mass ratio of the three solutions (one is ordinary solution) is approximately $1:(8\pi/\alpha)^{2/...
0803.2278
Gui-Jun Ding
Gui-Jun Ding
Fermion Mass Hierarchies and Flavor Mixing from $T'$ Symmetry
31 pages
Phys.Rev.D78:036011,2008
10.1103/PhysRevD.78.036011
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We construct a supersymmetric model based on $T'\otimes Z_3\otimes Z_9$ flavor symmetry. At the leading order, the charged lepton mass matrix is not diagonal, $T'$ is broken completely, and the hierarchy in the charged lepton masses is generated naturally. Nearly tri-bimaximal mixing is predicted, subleading effects ...
[ { "created": "Sat, 15 Mar 2008 09:38:15 GMT", "version": "v1" }, { "created": "Mon, 11 Aug 2008 13:45:12 GMT", "version": "v2" } ]
2008-11-26
[ [ "Ding", "Gui-Jun", "" ] ]
We construct a supersymmetric model based on $T'\otimes Z_3\otimes Z_9$ flavor symmetry. At the leading order, the charged lepton mass matrix is not diagonal, $T'$ is broken completely, and the hierarchy in the charged lepton masses is generated naturally. Nearly tri-bimaximal mixing is predicted, subleading effects in...
hep-ph/0605041
Seung-Il Nam
Seung-il Nam, Hyun-Chul Kim
QCD condensates with flavor SU(3) symmetry breaking from the instanton vacuum
12 pages, 4 figures, accepted for publication in Phys.Lett.B
Phys.Lett.B647:145-151,2007
10.1016/j.physletb.2007.01.059
PNU-NTG-01/2006, PNU-NURI-01/2006
hep-ph
null
We investigate the effects of flavor SU(3)-symmetry breaking on the quark, gluon, and mixed quark-gluon condensates, based on the nonlocal effective chiral action from the instanton vacuum. We employ two different parameterizations for the dependence of the momentum-dependent dynamical quark mass on the strange curre...
[ { "created": "Thu, 4 May 2006 07:19:29 GMT", "version": "v1" }, { "created": "Thu, 25 Jan 2007 07:06:08 GMT", "version": "v2" } ]
2008-11-26
[ [ "Nam", "Seung-il", "" ], [ "Kim", "Hyun-Chul", "" ] ]
We investigate the effects of flavor SU(3)-symmetry breaking on the quark, gluon, and mixed quark-gluon condensates, based on the nonlocal effective chiral action from the instanton vacuum. We employ two different parameterizations for the dependence of the momentum-dependent dynamical quark mass on the strange current...
hep-ph/9809487
Christian Weiss
B. Dressler, K. Goeke, P.V. Pobylitsa, M.V. Polyakov, T. Watabe, and C. Weiss
Flavor asymmetry of polarized and unpolarized sea quark distributions in the large-N_c limit
12 pages, LaTeX, 3 figures included using epsf. Part of Plenary Talk given by C. Weiss at the XI International Conference ``Problems of Quantum Field Theory'' (In Memory of D.I. Blokhintsev), Dubna, July 13-17, 1998
null
null
RUB-TPII-15/98
hep-ph
null
We summarize recent attempts to calculate the flavor asymmetry of the nucleon's sea quark distributions in the large-$N_c$ limit, where the nucleon can be described as a soliton of an effective chiral theory. We discuss the leading-twist longitudinally polarized and transversity antiquark distributions, $\Delta\bar u...
[ { "created": "Tue, 22 Sep 1998 22:17:16 GMT", "version": "v1" } ]
2007-05-23
[ [ "Dressler", "B.", "" ], [ "Goeke", "K.", "" ], [ "Pobylitsa", "P. V.", "" ], [ "Polyakov", "M. V.", "" ], [ "Watabe", "T.", "" ], [ "Weiss", "C.", "" ] ]
We summarize recent attempts to calculate the flavor asymmetry of the nucleon's sea quark distributions in the large-$N_c$ limit, where the nucleon can be described as a soliton of an effective chiral theory. We discuss the leading-twist longitudinally polarized and transversity antiquark distributions, $\Delta\bar u (...
1112.1957
Jos\'e Juknevich
Leandro G. Almeida, Ozan Erdo\u{g}an, Jos\'e Juknevich, Seung J. Lee, Gilad Perez and George Sterman
Three-particle templates for boosted Higgs
32 pages, 13 figures. v2: Acknowledgments added, typos fixed. v3: added comparison to filtering method, minor correction and acknowledgment added. The version to appear in Phys. Rev. D
null
10.1103/PhysRevD.85.114046
YITP-SB-11-46; CERN-PH-TH/2012-031
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore the ability of three-particle templates to distinguish color neutral objects from QCD background. This method is particularly useful to identify the standard model Higgs, as well as other massive neutral particles. Simple cut-based analysis in the overlap distributions of the signal and background is shown...
[ { "created": "Thu, 8 Dec 2011 21:00:43 GMT", "version": "v1" }, { "created": "Fri, 3 Feb 2012 19:06:44 GMT", "version": "v2" }, { "created": "Tue, 12 Jun 2012 08:27:44 GMT", "version": "v3" } ]
2013-05-30
[ [ "Almeida", "Leandro G.", "" ], [ "Erdoğan", "Ozan", "" ], [ "Juknevich", "José", "" ], [ "Lee", "Seung J.", "" ], [ "Perez", "Gilad", "" ], [ "Sterman", "George", "" ] ]
We explore the ability of three-particle templates to distinguish color neutral objects from QCD background. This method is particularly useful to identify the standard model Higgs, as well as other massive neutral particles. Simple cut-based analysis in the overlap distributions of the signal and background is shown t...
1409.0073
Amitabha Lahiri
Ishita Dutta Choudhury and Amitabha Lahiri
Anomalous chromomagnetic moment of quarks
17 pages, 12 figures; V2: References added, typos corrected in some equations, differences with existing work discussed in detail, results unchanged
Modern Physics Letters A 30 (2015) 1550113
10.1142/S0217732315501138
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We do a perturbative calculation of the anomalous chromomagnetic dipole moment of quarks at one-loop, also considering the effect of a small gauge-invariant mass of the gluon. We find partial agreement with a previous calculation, as well as a divergence. We explain these results by noting that perturbation theory is...
[ { "created": "Sat, 30 Aug 2014 00:49:35 GMT", "version": "v1" }, { "created": "Thu, 9 Oct 2014 01:16:07 GMT", "version": "v2" } ]
2015-07-16
[ [ "Choudhury", "Ishita Dutta", "" ], [ "Lahiri", "Amitabha", "" ] ]
We do a perturbative calculation of the anomalous chromomagnetic dipole moment of quarks at one-loop, also considering the effect of a small gauge-invariant mass of the gluon. We find partial agreement with a previous calculation, as well as a divergence. We explain these results by noting that perturbation theory is n...
1410.2270
Benjamin Nachman
Benjamin Nachman and Tom Rudelius
A Meta-analysis of the 8 TeV ATLAS and CMS SUSY Searches
Zero observed count regions excluded in v1, fixed in v2. Results are qualitatively unchanged
JHEP 02 (2015) 004
10.1007/JHEP02(2015)004
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Between the ATLAS and CMS collaborations at the LHC, hundreds of individual event selections have been measured in the data to look for evidence of supersymmetry at a center of mass energy of 8 TeV. While there is currently no significant evidence for any particular model of supersymmetry, the large number of searche...
[ { "created": "Wed, 8 Oct 2014 20:40:54 GMT", "version": "v1" }, { "created": "Fri, 10 Oct 2014 18:40:54 GMT", "version": "v2" } ]
2016-09-06
[ [ "Nachman", "Benjamin", "" ], [ "Rudelius", "Tom", "" ] ]
Between the ATLAS and CMS collaborations at the LHC, hundreds of individual event selections have been measured in the data to look for evidence of supersymmetry at a center of mass energy of 8 TeV. While there is currently no significant evidence for any particular model of supersymmetry, the large number of searches ...
0812.0519
Elena Narynskaya
N.V.Mikheev and E.N.Narynskaya
Neutrino dispersion in magnetized plasma
5 pages, 1 figure, based on the talk presented by E.N.Narynskaya at the XV International Seminar Quarks'2008, Sergiev Posad, Moscow Region, May 23-29, 2008, to appear in the Proceedings
null
null
YARU-HE 08/06
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The neutrino dispersion in the charge symmetric magnetized plasma is investigated. We have studied the plasma contribution into the additional energy of neutrino and obtained the simple expression for it. We consider in detail the neutrino self-energy under physical conditions of weak field, moderate field and strong...
[ { "created": "Tue, 2 Dec 2008 14:52:54 GMT", "version": "v1" } ]
2008-12-03
[ [ "Mikheev", "N. V.", "" ], [ "Narynskaya", "E. N.", "" ] ]
The neutrino dispersion in the charge symmetric magnetized plasma is investigated. We have studied the plasma contribution into the additional energy of neutrino and obtained the simple expression for it. We consider in detail the neutrino self-energy under physical conditions of weak field, moderate field and strong f...
hep-ph/9412329
D. P. Roy
Manoranjan Guchait and D.P. Roy
Like-sign dilepton signature for gluino production at LHC including top quark and higgs boson effects
16 pages, Latex, 4 figures (available on request)
Phys.Rev.D52:133-141,1995
10.1103/PhysRevD.52.133
TIFR/TH/94-51
hep-ph
null
A systematic analysis of the like-sign dipleton signature for gluino production at LHC is performed in the $R$-conserving minimal supersymmetric standard model, taking into account the top quark and Higgs boson effects in the cascade decay. We consider two representative values of the gluino mass, 300 and 800 GeV, al...
[ { "created": "Tue, 20 Dec 1994 14:51:33 GMT", "version": "v1" } ]
2009-09-25
[ [ "Guchait", "Manoranjan", "" ], [ "Roy", "D. P.", "" ] ]
A systematic analysis of the like-sign dipleton signature for gluino production at LHC is performed in the $R$-conserving minimal supersymmetric standard model, taking into account the top quark and Higgs boson effects in the cascade decay. We consider two representative values of the gluino mass, 300 and 800 GeV, alon...
hep-ph/9804228
Tao Han
T. Han, T. Yanagida and R.-J. Zhang
Adjoint Messengers and Perturbative Unification at the String Scale
9 pages, 2 figures
Phys.Rev. D58 (1998) 095011
10.1103/PhysRevD.58.095011
MADPH-98-1053
hep-ph hep-th
null
We consider states in the adjoint representation of the Standard Model gauge group as messengers for mediation of supersymmetry (SUSY) breaking. These new messengers can shift the gauge coupling unification to the string scale at O(5x10^{17} GeV) if their masses are at O(10^{14} GeV). The predicted SUSY mass spectrum...
[ { "created": "Sat, 4 Apr 1998 00:52:05 GMT", "version": "v1" }, { "created": "Sat, 4 Apr 1998 01:07:03 GMT", "version": "v2" } ]
2009-10-31
[ [ "Han", "T.", "" ], [ "Yanagida", "T.", "" ], [ "Zhang", "R. -J.", "" ] ]
We consider states in the adjoint representation of the Standard Model gauge group as messengers for mediation of supersymmetry (SUSY) breaking. These new messengers can shift the gauge coupling unification to the string scale at O(5x10^{17} GeV) if their masses are at O(10^{14} GeV). The predicted SUSY mass spectrum a...
hep-ph/9307332
Hai-Yang Cheng
Hai-Yang Cheng
Predictions for Semileptonic Decays $\bar{B}\to D(D^*)\pi\ell\bar{\nu}$ and Weak Radiative Decays of Bottom Hadrons
Latex, 6 pages, ITP-SB-93-41
null
null
null
hep-ph
null
The semileptonic decays $\bar{B}\to D(D^*)\pi\ell\bar{\nu}$ are analyzed by heavy quark and chiral symmetries. The branching ratio is of order of a few percent for $\dpi$, but it is much smaller for $\dstar$, of order $10^{-4}-10^{-5}$. The decay mode $B^-\to D^+\pi^-e^-\bar{\nu}_e$ provides a nice place for extracti...
[ { "created": "Mon, 26 Jul 1993 14:50:20 GMT", "version": "v1" } ]
2007-05-23
[ [ "Cheng", "Hai-Yang", "" ] ]
The semileptonic decays $\bar{B}\to D(D^*)\pi\ell\bar{\nu}$ are analyzed by heavy quark and chiral symmetries. The branching ratio is of order of a few percent for $\dpi$, but it is much smaller for $\dstar$, of order $10^{-4}-10^{-5}$. The decay mode $B^-\to D^+\pi^-e^-\bar{\nu}_e$ provides a nice place for extracting...
hep-ph/9905458
Plamen Krastev
P. I. Krastev
Global Analysis of Solar Neutrino Data
7 pages, 5 figures, Talk given at DPF '99, UCLA, Los Angeles, USA, 5-9 January 1999
null
null
null
hep-ph
null
The data from all solar neutrino experiments presented at the Neutrino 98 conference has been analyzed and a brief summary of the status of the two most popular neutrino solutions of the solar neutrino problem, the MSW mechanism and vacuum oscillations, is presented here. The inclusion of the recoil-electron data and...
[ { "created": "Mon, 24 May 1999 04:42:33 GMT", "version": "v1" } ]
2007-05-23
[ [ "Krastev", "P. I.", "" ] ]
The data from all solar neutrino experiments presented at the Neutrino 98 conference has been analyzed and a brief summary of the status of the two most popular neutrino solutions of the solar neutrino problem, the MSW mechanism and vacuum oscillations, is presented here. The inclusion of the recoil-electron data and o...
1206.1288
Konstantin Chetyrkin G.
P. A. Baikov, K. G. Chetyrkin, J. H. K\"uhn and J. Rittinger
Adler Function, Sum Rules and Crewther Relation of Order O(alpha_s^4): the Singlet Case
4 pages, 1 figure. Final published version
Phys.Lett. B714 (2012) 62-65
10.1016/j.physletb.2012.06.052
SFB/CPP-12-35; TTP12-017
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The analytic result for the singlet part of the Adler function of the vector current in a general gauge theory is presented in five-loop approximation. Comparing this result with the corresponding singlet part of the Gross-Llewellyn Smith sum rule [1], we successfully demonstrate the validity of the generalized Crewt...
[ { "created": "Wed, 6 Jun 2012 17:52:57 GMT", "version": "v1" }, { "created": "Wed, 10 Oct 2012 14:28:12 GMT", "version": "v2" } ]
2015-06-05
[ [ "Baikov", "P. A.", "" ], [ "Chetyrkin", "K. G.", "" ], [ "Kühn", "J. H.", "" ], [ "Rittinger", "J.", "" ] ]
The analytic result for the singlet part of the Adler function of the vector current in a general gauge theory is presented in five-loop approximation. Comparing this result with the corresponding singlet part of the Gross-Llewellyn Smith sum rule [1], we successfully demonstrate the validity of the generalized Crewthe...
hep-ph/0006193
Botje
M. Botje
Error propagation in QCD fits
Latex, 3 pages, 1 figure, needs sprocl.sty. Contribution to DIS2000, Liverpool UK, April 25-30, 2000
null
null
null
hep-ph
null
The parton momentum density distributions of the proton were obtained from a NLO QCD analysis of HERA and fixed target structure function data. The resulting parton distribution set includes the full information on errors and correlations.
[ { "created": "Fri, 16 Jun 2000 14:41:22 GMT", "version": "v1" } ]
2007-05-23
[ [ "Botje", "M.", "" ] ]
The parton momentum density distributions of the proton were obtained from a NLO QCD analysis of HERA and fixed target structure function data. The resulting parton distribution set includes the full information on errors and correlations.
hep-ph/0507178
Stefano Pozzorini
J.H. Kuhn, A. Kulesza, S. Pozzorini, M. Schulze
One-loop weak corrections to hadronic production of Z bosons at large transverse momenta
32 pages, 7 figures
Nucl.Phys. B727 (2005) 368-394
10.1016/j.nuclphysb.2005.08.019
TTP05-10, SFB/CPP-05-30
hep-ph
null
To match the precision of present and future measurements of Z-boson production at hadron colliders, electroweak radiative corrections must be included in the theory predictions. In this paper we consider their effect on the transverse momentum ($p_T$) distribution of Z bosons, with emphasis on large $p_T$. We evalua...
[ { "created": "Thu, 14 Jul 2005 17:21:27 GMT", "version": "v1" } ]
2010-04-05
[ [ "Kuhn", "J. H.", "" ], [ "Kulesza", "A.", "" ], [ "Pozzorini", "S.", "" ], [ "Schulze", "M.", "" ] ]
To match the precision of present and future measurements of Z-boson production at hadron colliders, electroweak radiative corrections must be included in the theory predictions. In this paper we consider their effect on the transverse momentum ($p_T$) distribution of Z bosons, with emphasis on large $p_T$. We evaluate...
1306.1830
Francisco Campanario
Francisco Campanario, Michael Kubocz
Higgs boson production in association with three jets via gluon fusion at the LHC: Gluonic contributions
5 pages, 4 figures
null
10.1103/PhysRevD.88.054021
FTUV-13-0606, IFIC-13-27, KA-TP-13-2013, LPN13-034, SFB/CPP-13-38, TTK-13-16
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Higgs production in association with three jets via gluon fusion (GF) is an important channel for the measurement of the CP-properties of the Higgs particle at the LHC. In this letter, we go beyond the heavy top effective theory approximation and include at LO the full mass dependence of the top- and bottom-quark con...
[ { "created": "Fri, 7 Jun 2013 20:00:02 GMT", "version": "v1" } ]
2013-10-02
[ [ "Campanario", "Francisco", "" ], [ "Kubocz", "Michael", "" ] ]
Higgs production in association with three jets via gluon fusion (GF) is an important channel for the measurement of the CP-properties of the Higgs particle at the LHC. In this letter, we go beyond the heavy top effective theory approximation and include at LO the full mass dependence of the top- and bottom-quark contr...
2302.00494
Priya Mishra
Priya Mishra, Mitesh Kumar Behera, Rukmani Mohanta
Neutrino phenomenology, W mass anomaly & muon $(g-2)$ in minimal type-III seesaw using $T^\prime$ modular symmetry
26 pages, 19 figures, 3 tables
null
10.1103/PhysRevD.107.115004
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this study, we attempt to introduce a model to illustrate neutrino phenomenology by incorporating two right-handed fermion triplet superfields, i.e., $\Sigma_{R_j}$, in the presence of the modular symmetry $\Gamma_3^\prime \simeq A_4^\prime$, a double cover of the $A_4$ modular symmetry. The motivation in utilizin...
[ { "created": "Wed, 1 Feb 2023 15:04:47 GMT", "version": "v1" }, { "created": "Fri, 19 May 2023 07:35:48 GMT", "version": "v2" } ]
2023-06-14
[ [ "Mishra", "Priya", "" ], [ "Behera", "Mitesh Kumar", "" ], [ "Mohanta", "Rukmani", "" ] ]
In this study, we attempt to introduce a model to illustrate neutrino phenomenology by incorporating two right-handed fermion triplet superfields, i.e., $\Sigma_{R_j}$, in the presence of the modular symmetry $\Gamma_3^\prime \simeq A_4^\prime$, a double cover of the $A_4$ modular symmetry. The motivation in utilizing ...
2303.07394
Nosheen Akbar
Nosheen Akbar, Bushra Shafaq, Sarwat Zahra, Amna Mir
Wave function dependent Form Factors and Radii of Mesons
9 pages, 3 figures, 6 tables
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, meson wave functions are selected to investigate the properties of charmonium, bottomonium, and charmed-bottom mesons. To find the masses of the ground, radial and orbital excited states of mesons, variational method is applied on the selected meson wave functions. In addition, mesons are treated non-re...
[ { "created": "Mon, 13 Mar 2023 18:17:13 GMT", "version": "v1" }, { "created": "Sat, 18 Mar 2023 06:02:57 GMT", "version": "v2" }, { "created": "Wed, 24 Jan 2024 18:24:30 GMT", "version": "v3" } ]
2024-01-25
[ [ "Akbar", "Nosheen", "" ], [ "Shafaq", "Bushra", "" ], [ "Zahra", "Sarwat", "" ], [ "Mir", "Amna", "" ] ]
In this work, meson wave functions are selected to investigate the properties of charmonium, bottomonium, and charmed-bottom mesons. To find the masses of the ground, radial and orbital excited states of mesons, variational method is applied on the selected meson wave functions. In addition, mesons are treated non-rela...
2311.14794
Sarunas Verner
Marcos A. G. Garcia, Kunio Kaneta, Wenqi Ke, Yann Mambrini, Keith A. Olive, Sarunas Verner
The Role of Vectors in Reheating
37 pages, 9 Figures
null
null
UMN--TH--4303/23, FTPI--MINN--23/22, OU--HET--1209
hep-ph astro-ph.CO
http://creativecommons.org/licenses/by/4.0/
We explore various aspects concerning the role of vector bosons during the reheating process. Generally, reheating occurs during the period of oscillations of the inflaton condensate and the evolution of the radiation bath depends on the inflaton equation of state. For oscillations about a quadratic minimum, the equa...
[ { "created": "Fri, 24 Nov 2023 19:00:00 GMT", "version": "v1" } ]
2023-11-28
[ [ "Garcia", "Marcos A. G.", "" ], [ "Kaneta", "Kunio", "" ], [ "Ke", "Wenqi", "" ], [ "Mambrini", "Yann", "" ], [ "Olive", "Keith A.", "" ], [ "Verner", "Sarunas", "" ] ]
We explore various aspects concerning the role of vector bosons during the reheating process. Generally, reheating occurs during the period of oscillations of the inflaton condensate and the evolution of the radiation bath depends on the inflaton equation of state. For oscillations about a quadratic minimum, the equati...
hep-ph/9409350
Subir Sarkar
S.A. Abel and S. Sarkar
Cosmological Constraints on Perturbative Supersymmetry Breaking
10 pages, LaTeX file (DRAL-94-094, OUTP-94-20P)
Phys.Lett.B342:40-46,1995
10.1016/0370-2693(94)01351-C
null
hep-ph astro-ph
null
We discuss the cosmology of string models with perturbative supersymmetry breaking at a scale of ${\cal O}$(TeV). Such models exhibit Kaluza-Klein like spectra and contain unstable massive gravitinos/gravitons. We find that considerations of primordial nucleosynthesis constrain the maximum temperature following infla...
[ { "created": "Mon, 19 Sep 1994 11:56:18 GMT", "version": "v1" } ]
2011-02-16
[ [ "Abel", "S. A.", "" ], [ "Sarkar", "S.", "" ] ]
We discuss the cosmology of string models with perturbative supersymmetry breaking at a scale of ${\cal O}$(TeV). Such models exhibit Kaluza-Klein like spectra and contain unstable massive gravitinos/gravitons. We find that considerations of primordial nucleosynthesis constrain the maximum temperature following inflati...
hep-ph/9408402
Erwin Mirkes
E.Mirkes and J.Ohnemus
Polarization Effects in Drell-Yan Type Processes h_1+h_2 -> (W,Z,\gamma*,J/psi)+X
Presented by E. Mirkes at DPF94 Meeting, Albuquerque, New Mexico, August 2-6,1994. 3 pages (LaTex), 2 uuencoded figures appended
null
null
null
hep-ph
null
The measurement of the angular distribution of leptons from the decay of a $W$, $Z$, $\gamma^{\ast}$, or $\Jpsi$ produced at high transverse momentum in hadronic collisions provides a detailed test of the production and decay mechanism of the spin one state. In the absence of cuts on the final state leptons, the lept...
[ { "created": "Wed, 31 Aug 1994 16:20:55 GMT", "version": "v1" } ]
2009-09-25
[ [ "Mirkes", "E.", "" ], [ "Ohnemus", "J.", "" ] ]
The measurement of the angular distribution of leptons from the decay of a $W$, $Z$, $\gamma^{\ast}$, or $\Jpsi$ produced at high transverse momentum in hadronic collisions provides a detailed test of the production and decay mechanism of the spin one state. In the absence of cuts on the final state leptons, the lepton...
2305.04372
Yevgeny Kats
Debjyoti Bardhan, Yevgeny Kats, Noam Wunch
Searching for dark jets with displaced vertices using weakly supervised machine learning
30 pages, 14 figures; v2: minor improvements of presentation; published version
Phys. Rev. D 108, 035036 (2023)
10.1103/PhysRevD.108.035036
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
If "dark quarks" from a confining hidden sector are produced at the LHC, they will shower and hadronize to dark sector hadrons, which may decay back to Standard Model particles within the detector, possibly resulting in a collimated spray of particles resembling a QCD jet. In this work we address scenarios in which d...
[ { "created": "Sun, 7 May 2023 20:31:49 GMT", "version": "v1" }, { "created": "Wed, 23 Aug 2023 16:18:41 GMT", "version": "v2" } ]
2023-08-24
[ [ "Bardhan", "Debjyoti", "" ], [ "Kats", "Yevgeny", "" ], [ "Wunch", "Noam", "" ] ]
If "dark quarks" from a confining hidden sector are produced at the LHC, they will shower and hadronize to dark sector hadrons, which may decay back to Standard Model particles within the detector, possibly resulting in a collimated spray of particles resembling a QCD jet. In this work we address scenarios in which dar...
1604.05818
Harald Fritzsch
Harald Fritzsch
Composite Weak Bosons at the Large Hadronic Collider
6 pages. arXiv admin note: text overlap with arXiv:1203.5600
null
10.1142/S0217732316300196
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In a composite model of the weak bosons the p-wave bosons are studied. The state with the lowest mass is identified with the boson, which has been discovered at the LHC. Specific properties of the excited bosons are discussed, in particular their decays into weak bosons and photons. Recently a two photon signal has b...
[ { "created": "Wed, 20 Apr 2016 04:56:56 GMT", "version": "v1" } ]
2016-08-03
[ [ "Fritzsch", "Harald", "" ] ]
In a composite model of the weak bosons the p-wave bosons are studied. The state with the lowest mass is identified with the boson, which has been discovered at the LHC. Specific properties of the excited bosons are discussed, in particular their decays into weak bosons and photons. Recently a two photon signal has bee...
hep-ph/9812239
Andrea Romanino
Riccardo Barbieri, Leonardo Giusti, Lawrence J. Hall, Andrea Romanino
Fermion masses and symmetry breaking of a U(2) flavour symmetry
9 pages, uses amsmath.sty
Nucl.Phys. B550 (1999) 32-40
10.1016/S0550-3213(99)00195-9
null
hep-ph
null
We show how a specific sequential breaking pattern of a U(2) flavour symmetry occurs automatically in a broad framework. The relative orientation in U(2) space of the spurion fields that breaks the U(2) symmetry is uniquely fixed, thus determining the form of the fermion mass matrices in a predictive way.
[ { "created": "Thu, 3 Dec 1998 15:28:59 GMT", "version": "v1" } ]
2009-10-31
[ [ "Barbieri", "Riccardo", "" ], [ "Giusti", "Leonardo", "" ], [ "Hall", "Lawrence J.", "" ], [ "Romanino", "Andrea", "" ] ]
We show how a specific sequential breaking pattern of a U(2) flavour symmetry occurs automatically in a broad framework. The relative orientation in U(2) space of the spurion fields that breaks the U(2) symmetry is uniquely fixed, thus determining the form of the fermion mass matrices in a predictive way.
1509.07123
Alexey A. Petrov
Alexander Khodjamirian, Thomas Mannel, Alexey A Petrov
Direct probes of flavor-changing neutral currents in $e^+e^-$ collisions
24 pages, 2 figures
null
10.1007/JHEP11(2015)142
SI-HEP-2015-18, QFET-2015-24, WSU-HEP-1503
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a novel method to study flavor-changing neutral currents in the $e^+e^-\to D^{*0}$ and $e^+e^-\to B_{s}^* $ transitions, tuning the energy of $e^+e^-$- collisions to the mass of the narrow vector resonance $D^{*0}$ or $ B_{s}^*$. We present a thorough study of both short-distance and long-distance contribu...
[ { "created": "Wed, 23 Sep 2015 20:05:03 GMT", "version": "v1" } ]
2016-01-20
[ [ "Khodjamirian", "Alexander", "" ], [ "Mannel", "Thomas", "" ], [ "Petrov", "Alexey A", "" ] ]
We propose a novel method to study flavor-changing neutral currents in the $e^+e^-\to D^{*0}$ and $e^+e^-\to B_{s}^* $ transitions, tuning the energy of $e^+e^-$- collisions to the mass of the narrow vector resonance $D^{*0}$ or $ B_{s}^*$. We present a thorough study of both short-distance and long-distance contributi...
1702.00185
Sinan Kuday
S. Kuday, H. Saygin, I. Hos, F. Cetin
Projections for Neutral Di-Boson and Di-Higgs Interactions at FCC-he Collider
18 pages, 20 figures, 3 tables
null
10.1016/j.nuclphysb.2018.05.002
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
As a high energy e-p collider, FCC-he, has been recently proposed with sufficient energy options to investigate Higgs couplings. To analyse the sensitivity on the Higgs boson couplings, we focus spesifically on the CP-even and CP-odd Wilson coefficients with $hhZZ\:$and $hh\gamma\gamma\:$ four-point interactions of H...
[ { "created": "Wed, 1 Feb 2017 10:08:37 GMT", "version": "v1" }, { "created": "Fri, 3 Mar 2017 14:27:17 GMT", "version": "v2" }, { "created": "Fri, 26 May 2017 09:18:20 GMT", "version": "v3" }, { "created": "Thu, 10 Aug 2017 12:05:43 GMT", "version": "v4" }, { "cre...
2018-05-08
[ [ "Kuday", "S.", "" ], [ "Saygin", "H.", "" ], [ "Hos", "I.", "" ], [ "Cetin", "F.", "" ] ]
As a high energy e-p collider, FCC-he, has been recently proposed with sufficient energy options to investigate Higgs couplings. To analyse the sensitivity on the Higgs boson couplings, we focus spesifically on the CP-even and CP-odd Wilson coefficients with $hhZZ\:$and $hh\gamma\gamma\:$ four-point interactions of Hig...
hep-ph/9304226
null
Lisa Randall and Nuria Rius
Why a Scalar Explanation of the L3 Events is Implausible
Latex 14 pages (1 figure not included). MIT preprint CTP-2191
Phys.Lett.B309:365-370,1993
10.1016/0370-2693(93)90946-F
null
hep-ph
null
We investigate the question of whether an additional light neutral scalar can explain the $l^+ l^- \gamma \gamma$ events with high invariant mass photon pairs recently observed by the L3 collaboration. We parameterize the low energy effects of the unknown dynamics in terms of higher dimensional effective operators. W...
[ { "created": "Tue, 6 Apr 1993 23:47:19 GMT", "version": "v1" } ]
2009-09-15
[ [ "Randall", "Lisa", "" ], [ "Rius", "Nuria", "" ] ]
We investigate the question of whether an additional light neutral scalar can explain the $l^+ l^- \gamma \gamma$ events with high invariant mass photon pairs recently observed by the L3 collaboration. We parameterize the low energy effects of the unknown dynamics in terms of higher dimensional effective operators. We ...
2404.00858
Morimitsu Tanimoto
S.T. Petcov and M. Tanimoto
$A_4$ modular invariance and the strong CP problem
Section 5 and two figures are added
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We present simple effective theory of quark masses, mixing and CP violation with level $N=3$ ($A_4$) modular symmetry, which provides solution to the strong CP problem without the need for an axion. The vanishing of the strong CP-violating phase $\bar \theta$ is ensured by assuming CP to be a fundamental symmetry of ...
[ { "created": "Mon, 1 Apr 2024 01:56:31 GMT", "version": "v1" }, { "created": "Tue, 2 Jul 2024 02:49:56 GMT", "version": "v2" } ]
2024-07-03
[ [ "Petcov", "S. T.", "" ], [ "Tanimoto", "M.", "" ] ]
We present simple effective theory of quark masses, mixing and CP violation with level $N=3$ ($A_4$) modular symmetry, which provides solution to the strong CP problem without the need for an axion. The vanishing of the strong CP-violating phase $\bar \theta$ is ensured by assuming CP to be a fundamental symmetry of th...
hep-ph/0510339
Santosh Kumar Rai
Santosh Kumar Rai
Effects of Universal Extra Dimensions on Higgs signals at LHC
13 pages, LateX, Title changed, text and figures modified. Version to appear in IJMPA
Int.J.Mod.Phys.A23:823-834,2008
10.1142/S0217751X08038548
HRI-P-05-10-002
hep-ph
null
A major focus at the Large Hadron Collider (LHC) will be Higgs boson studies and it would be an interesting prospect to simultaneously probe for physics beyond the Standard Model (SM) in the Higgs signals. In this work we show as to what extent, the effects of Universal Extra Dimension (UED) can be isolated at the LH...
[ { "created": "Wed, 26 Oct 2005 12:14:39 GMT", "version": "v1" }, { "created": "Thu, 20 Apr 2006 17:40:09 GMT", "version": "v2" }, { "created": "Wed, 21 Nov 2007 14:27:29 GMT", "version": "v3" } ]
2008-11-26
[ [ "Rai", "Santosh Kumar", "" ] ]
A major focus at the Large Hadron Collider (LHC) will be Higgs boson studies and it would be an interesting prospect to simultaneously probe for physics beyond the Standard Model (SM) in the Higgs signals. In this work we show as to what extent, the effects of Universal Extra Dimension (UED) can be isolated at the LHC ...
2305.13149
Matteo Buzzegoli
Matteo Buzzegoli and Kirill Tuchin
Chiral magnetic effect in a cylindrical domain
13 pages, 6 figures, final version published in PRD, typos
Phys. Rev. D 108 (2023) no. 5, 056008
10.1103/PhysRevD.108.056008
null
hep-ph cond-mat.mes-hall hep-th nucl-th
http://creativecommons.org/licenses/by/4.0/
We compute the chiral magnetic effect (CME) in a cylindrical region coaxial with the external magnetic field. As the boundary condition we require vanishing of the radial component of the electric current on the cylinder side wall. We find that when the magnetic length is comparable to or larger than the cylinder rad...
[ { "created": "Mon, 22 May 2023 15:39:14 GMT", "version": "v1" }, { "created": "Mon, 11 Sep 2023 18:28:31 GMT", "version": "v2" } ]
2023-09-13
[ [ "Buzzegoli", "Matteo", "" ], [ "Tuchin", "Kirill", "" ] ]
We compute the chiral magnetic effect (CME) in a cylindrical region coaxial with the external magnetic field. As the boundary condition we require vanishing of the radial component of the electric current on the cylinder side wall. We find that when the magnetic length is comparable to or larger than the cylinder radiu...
2102.07216
Carlos Alvarado
Carlos Alvarado, Cesar Bonilla, Julio Leite, and Jos\'e W. F. Valle
Phenomenology of fermion dark matter as neutrino mass mediator with gauged B-L
19 pages, 9 figures. References added, typos corrected. Matches published version in PLB
Phys.Lett.B 817 (2021) 136292
10.1016/j.physletb.2021.136292
IFIC/21-XXX
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze a model with unbroken B-L gauge symmetry where neutrino masses are generated at one loop, after spontaneous breaking of a global U(1) symmetry. These symmetries ensure dark matter stability and the Diracness of neutrinos. Within this context, we examine fermionic dark matter. Consistency between the requir...
[ { "created": "Sun, 14 Feb 2021 18:38:29 GMT", "version": "v1" }, { "created": "Thu, 13 May 2021 07:50:26 GMT", "version": "v2" } ]
2021-05-14
[ [ "Alvarado", "Carlos", "" ], [ "Bonilla", "Cesar", "" ], [ "Leite", "Julio", "" ], [ "Valle", "José W. F.", "" ] ]
We analyze a model with unbroken B-L gauge symmetry where neutrino masses are generated at one loop, after spontaneous breaking of a global U(1) symmetry. These symmetries ensure dark matter stability and the Diracness of neutrinos. Within this context, we examine fermionic dark matter. Consistency between the required...
2109.02188
Reed Hodges
Sean Fleming (Arizona U.), Reed Hodges (Duke U.), Thomas Mehen (Duke U.)
$T_{cc}^+$ decays: Differential spectra and two-body final states
9 pages, 6 figures
Phys. Rev. D 104, 116010 (2021)
10.1103/PhysRevD.104.116010
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The recently discovered tetraquark, $T_{cc}^+$, has quark content $cc\bar{u}\bar{d}$ and a mass that lies just below open charm thresholds. Hence it is reasonable to expect the state to have a significant molecular component. We calculate the decay of the $T_{cc}^+$ in a molecular interpretation using effective field...
[ { "created": "Sun, 5 Sep 2021 23:59:55 GMT", "version": "v1" }, { "created": "Tue, 14 Sep 2021 21:23:48 GMT", "version": "v2" }, { "created": "Thu, 30 Dec 2021 04:29:34 GMT", "version": "v3" } ]
2022-01-03
[ [ "Fleming", "Sean", "", "Arizona U." ], [ "Hodges", "Reed", "", "Duke U." ], [ "Mehen", "Thomas", "", "Duke\n U." ] ]
The recently discovered tetraquark, $T_{cc}^+$, has quark content $cc\bar{u}\bar{d}$ and a mass that lies just below open charm thresholds. Hence it is reasonable to expect the state to have a significant molecular component. We calculate the decay of the $T_{cc}^+$ in a molecular interpretation using effective field t...
1012.5369
Takuya Morozumi
Daiji Kimura, Kang Young Lee Takuya Morozumi Keita Nakagawa
Charged Higgs Flavor Changing Current in tau^- to nu_X K^- pi^0
6 pages, 5 figures. Invited talk presented at 11th International Workshop on Tau Lepton Physics (Tau2010) Sep.13th-17th, 2010, Univ. of. Manchester
Nucl.Phys.Proc.Suppl.218:3-8,2011
10.1016/j.nuclphysbps.2011.06.002
HUPD1007
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the effect of flavor changing charged current(FCCC) of lepton sector in the hadronic tau decays, tau \to nu_X K^- pi^0 (X=e,mu). In general two Higgs doublet model, the lepton flavor changing neutral current (FCNC) arises in the charged lepton sector and contributes to the process such as tau \to mu mu^+ mu^...
[ { "created": "Fri, 24 Dec 2010 09:16:43 GMT", "version": "v1" } ]
2011-09-20
[ [ "Kimura", "Daiji", "" ], [ "Nakagawa", "Kang Young Lee Takuya Morozumi Keita", "" ] ]
We study the effect of flavor changing charged current(FCCC) of lepton sector in the hadronic tau decays, tau \to nu_X K^- pi^0 (X=e,mu). In general two Higgs doublet model, the lepton flavor changing neutral current (FCNC) arises in the charged lepton sector and contributes to the process such as tau \to mu mu^+ mu^- ...
2304.09454
Kanat Nurlan
Volkov M.K., Nurlan K., Pivovarov A.A
The decay $\tau \to 3\pi\nu_\tau$ and axial-vector meson $a_1$ in the NJL model
2 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The branching fractions of $\tau \to \pi^+ \pi^-\pi^- \nu_\tau$ and $\tau \to \pi^- 2\pi^0\nu_\tau$ are calculated within the chiral NJL model. Features of the axial-vector $a_1$ meson which plays an important role in describing the $\tau$ decays are discussed. Permissible values for the mass and width of the $a_1$ m...
[ { "created": "Wed, 19 Apr 2023 06:55:19 GMT", "version": "v1" } ]
2023-04-20
[ [ "K.", "Volkov M.", "" ], [ "K.", "Nurlan", "" ], [ "A", "Pivovarov A.", "" ] ]
The branching fractions of $\tau \to \pi^+ \pi^-\pi^- \nu_\tau$ and $\tau \to \pi^- 2\pi^0\nu_\tau$ are calculated within the chiral NJL model. Features of the axial-vector $a_1$ meson which plays an important role in describing the $\tau$ decays are discussed. Permissible values for the mass and width of the $a_1$ mes...
1105.1399
Muhammad Adeel Ajaib
M.A. Ajaib and S.M. Barr
Higgs Multiplets of the Quark-Lepton Family Group
null
Phys.Rev.D84:035021,2011
10.1103/PhysRevD.84.035021
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is shown that realistic models can be constructed in which the Standard Model Higgs field is in a non-trivial multiplet of a non-abelian family group of the quarks and leptons. It is shown that the observed quark and lepton masses and mixing angles can be fit, while the coefficients of flavor-changing four-fermion...
[ { "created": "Fri, 6 May 2011 23:40:41 GMT", "version": "v1" } ]
2011-09-14
[ [ "Ajaib", "M. A.", "" ], [ "Barr", "S. M.", "" ] ]
It is shown that realistic models can be constructed in which the Standard Model Higgs field is in a non-trivial multiplet of a non-abelian family group of the quarks and leptons. It is shown that the observed quark and lepton masses and mixing angles can be fit, while the coefficients of flavor-changing four-fermion o...
1507.08295
Lina Necib
Nayara Fonseca, Lina Necib, Jesse Thaler
Dark Matter, Shared Asymmetries, and Galactic Gamma Ray Signals
20+12 pages, 11 figures, 1 table; v2: references added, minor corrections to CMB bounds; v3: footnotes added for clarification, updated appendix A, conclusions unchanged, version to appear in JCAP
null
10.1088/1475-7516/2016/02/052
MIT-CTP 4695
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We introduce a novel dark matter scenario where the visible sector and the dark sector share a common asymmetry. The two sectors are connected through an unstable mediator with baryon number one, allowing the standard model baryon asymmetry to be shared with dark matter via semi-annihilation. The present-day abundanc...
[ { "created": "Wed, 29 Jul 2015 20:16:33 GMT", "version": "v1" }, { "created": "Sat, 5 Sep 2015 15:52:23 GMT", "version": "v2" }, { "created": "Sat, 20 Feb 2016 21:22:52 GMT", "version": "v3" } ]
2016-03-16
[ [ "Fonseca", "Nayara", "" ], [ "Necib", "Lina", "" ], [ "Thaler", "Jesse", "" ] ]
We introduce a novel dark matter scenario where the visible sector and the dark sector share a common asymmetry. The two sectors are connected through an unstable mediator with baryon number one, allowing the standard model baryon asymmetry to be shared with dark matter via semi-annihilation. The present-day abundance ...
1712.04792
Guo-Yuan Huang
Guo-yuan Huang, Tommy Ohlsson, Shun Zhou
Observational Constraints on Secret Neutrino Interactions from Big Bang Nucleosynthesis
18 pages, 5 figures
Phys. Rev. D 97, 075009 (2018)
10.1103/PhysRevD.97.075009
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate possible interactions between neutrinos and massive scalar bosons via $g^{}_{\phi} \overline{\nu} \nu \phi$ (or massive vector bosons via $g^{}_V \overline{\nu} \gamma^\mu \nu V^{}_\mu$) and explore the allowed parameter space of the coupling constant $g^{}_{\phi}$ (or $g^{}_V$) and the scalar (or vect...
[ { "created": "Wed, 13 Dec 2017 14:41:10 GMT", "version": "v1" }, { "created": "Sun, 1 Apr 2018 02:29:50 GMT", "version": "v2" } ]
2018-04-11
[ [ "Huang", "Guo-yuan", "" ], [ "Ohlsson", "Tommy", "" ], [ "Zhou", "Shun", "" ] ]
We investigate possible interactions between neutrinos and massive scalar bosons via $g^{}_{\phi} \overline{\nu} \nu \phi$ (or massive vector bosons via $g^{}_V \overline{\nu} \gamma^\mu \nu V^{}_\mu$) and explore the allowed parameter space of the coupling constant $g^{}_{\phi}$ (or $g^{}_V$) and the scalar (or vector...
1811.00666
Bao-Dong Sun
Bao-Dong Sun, Yu-Bing Dong
Polarized GPDs and structure functions of $\rho$ meson
null
Phys. Rev. D 99, 016023 (2019)
10.1103/PhysRevD.99.016023
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The $\rho$ meson polarized generalized parton distribution functions, its structure functions $g_1$ and $g_2$ and its axial form factors ${\tilde G}_{1,2}$ are studied based on a light-front quark model for the first time. Comparing our obtained moments of $g_1$ to lattice QCD calculation, we find that our results ar...
[ { "created": "Thu, 1 Nov 2018 22:49:37 GMT", "version": "v1" }, { "created": "Thu, 29 Nov 2018 19:56:32 GMT", "version": "v2" }, { "created": "Mon, 4 Feb 2019 09:44:54 GMT", "version": "v3" } ]
2019-02-06
[ [ "Sun", "Bao-Dong", "" ], [ "Dong", "Yu-Bing", "" ] ]
The $\rho$ meson polarized generalized parton distribution functions, its structure functions $g_1$ and $g_2$ and its axial form factors ${\tilde G}_{1,2}$ are studied based on a light-front quark model for the first time. Comparing our obtained moments of $g_1$ to lattice QCD calculation, we find that our results are ...