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hep-ph/9910269
Kneur Jean-Loic
A. Djouadi, J.-L. Kneur and G. Moultaka (Montpellier U.)
Stop-Stop-Higgs Production at future Linear Collider
5 pages, using sprocl.sty (included), 3 PS figures. Contribution to the proceedings of the International Workshop on Linear Colliders, Sitges, Spain, April 28-May 5, 1999
null
null
PM/99-37
hep-ph
null
In the Minimal Supersymmetric Standard Model, the cross section for the associated production of the lightest neutral Higgs boson with the lightest top squark pairs can be rather substantial at high energies. We summarize the properties of this production process at a future e^+e^- linear collider, including the $\ga...
[ { "created": "Thu, 7 Oct 1999 15:05:22 GMT", "version": "v1" } ]
2007-05-23
[ [ "Djouadi", "A.", "", "Montpellier U." ], [ "Kneur", "J. -L.", "", "Montpellier U." ], [ "Moultaka", "G.", "", "Montpellier U." ] ]
In the Minimal Supersymmetric Standard Model, the cross section for the associated production of the lightest neutral Higgs boson with the lightest top squark pairs can be rather substantial at high energies. We summarize the properties of this production process at a future e^+e^- linear collider, including the $\gamm...
1709.04105
Jinsu Kim
Jinsu Kim and John McDonald
Clockwork Higgs portal model for freeze-in dark matter
v3: To be published in PRD
Phys. Rev. D 98, 023533 (2018)
10.1103/PhysRevD.98.023533
null
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The clockwork mechanism can explain interactions which are dimensionally very weak without the need for very large mass scales. We present a model in which the clockwork mechanism generates the very small Higgs portal coupling and dark matter particle mass necessary to explain cold dark matter via the freeze-in mecha...
[ { "created": "Wed, 13 Sep 2017 01:43:02 GMT", "version": "v1" }, { "created": "Mon, 26 Mar 2018 12:56:34 GMT", "version": "v2" }, { "created": "Sun, 22 Jul 2018 15:51:09 GMT", "version": "v3" } ]
2018-08-01
[ [ "Kim", "Jinsu", "" ], [ "McDonald", "John", "" ] ]
The clockwork mechanism can explain interactions which are dimensionally very weak without the need for very large mass scales. We present a model in which the clockwork mechanism generates the very small Higgs portal coupling and dark matter particle mass necessary to explain cold dark matter via the freeze-in mechani...
0811.4530
Michael Chistyakov
M.V. Chistyakov, D.A. Rumyantsev
Electromagnetic Processes In Strongly Magnetized Plasma
10 pages, LaTeX, 9 figures, based on the talk presented at the XV International Seminar Quarks'2008, Sergiev Posad, Russia, 23-29 May, 2008, to appear in the Proceedings
null
null
YARU-HE-08/05
hep-ph astro-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The electromagnetic processes of Compton scattering and photon splitting/merging are investigated in the presence of strongly magnetized electron-positron plasma. The influence of these processes on the radiation transfer in the astrophysical environment is studied. In particular, the contribution of the processes un...
[ { "created": "Thu, 27 Nov 2008 12:54:17 GMT", "version": "v1" } ]
2008-12-01
[ [ "Chistyakov", "M. V.", "" ], [ "Rumyantsev", "D. A.", "" ] ]
The electromagnetic processes of Compton scattering and photon splitting/merging are investigated in the presence of strongly magnetized electron-positron plasma. The influence of these processes on the radiation transfer in the astrophysical environment is studied. In particular, the contribution of the processes unde...
2306.12403
Duygu Yildirim Yilmaz
Duygu Y{\i}ld{\i}r{\i}m
Spin Partners of the $B^{(*)}\bar{B}^{(*)}$ resonances with a different approach than the Breit-Wigner parameterization
8 pages, 3 tables, Accepted for publication in EPJ A
null
10.1140/epja/s10050-023-01061-0
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In general, resonances are obtained by the Breit-Wigner parameterization. However, it is not entirely appropriate to use this parameterization with near-threshold resonances such as the $Z_b(10610)$ and the $Z_b(10650)$, as Breit-Wigner does not contain the threshold effect. To eliminate this defect, a recently propo...
[ { "created": "Wed, 21 Jun 2023 17:41:28 GMT", "version": "v1" } ]
2023-07-07
[ [ "Yıldırım", "Duygu", "" ] ]
In general, resonances are obtained by the Breit-Wigner parameterization. However, it is not entirely appropriate to use this parameterization with near-threshold resonances such as the $Z_b(10610)$ and the $Z_b(10650)$, as Breit-Wigner does not contain the threshold effect. To eliminate this defect, a recently propose...
1907.12808
Anirban Kundu
Anirban Kundu, Suvam Maharana, and Poulami Mondal
A 96 GeV scalar tagged to dark matter models
23 pages, 25 figures. v2: significant changes, with a proper treatment of the diphoton signal. Version to be published in Nuclear Physics B
null
10.1016/j.nuclphysb.2020.115057
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recently, the CMS Collaboration observed the hint of a resonance decaying to two photons at about 96 GeV with a local significance of $2.8\sigma$. While it is too early to say whether this will stand the test of time, such a resonance can easily be accommodated in many extensions of the Standard Model (SM). The more ...
[ { "created": "Tue, 30 Jul 2019 09:42:57 GMT", "version": "v1" }, { "created": "Tue, 19 May 2020 07:25:00 GMT", "version": "v2" } ]
2020-06-24
[ [ "Kundu", "Anirban", "" ], [ "Maharana", "Suvam", "" ], [ "Mondal", "Poulami", "" ] ]
Recently, the CMS Collaboration observed the hint of a resonance decaying to two photons at about 96 GeV with a local significance of $2.8\sigma$. While it is too early to say whether this will stand the test of time, such a resonance can easily be accommodated in many extensions of the Standard Model (SM). The more ch...
hep-ph/0311152
Naomichi Suzuki
N.Suzuki and M.Biyajima
Analysis of transverse momentum distributions observed at RHIC by a stochastic model in hyperbolic space
5 pages, 3 figures, presented at the 33 international symposium on multiparticle dynamics, September 5-11, Krakow, Poland
Acta Phys.Polon. B35 (2004) 283-288
null
null
hep-ph
null
To describe large momentum distributions of charged particles observed at RHIC, a diffusion equation in the three dimensional hyperbolic space is introduced.
[ { "created": "Wed, 12 Nov 2003 08:34:55 GMT", "version": "v1" } ]
2007-05-23
[ [ "Suzuki", "N.", "" ], [ "Biyajima", "M.", "" ] ]
To describe large momentum distributions of charged particles observed at RHIC, a diffusion equation in the three dimensional hyperbolic space is introduced.
hep-ph/0104255
Shinji Maedan
S.Maedan
How parametric resonance mechanism follows quench mechanism in disoriented chiral condensate
LaTeX, 10 pages
Phys.Lett. B512 (2001) 73-77
10.1016/S0370-2693(01)00697-9
DPTN-01-01
hep-ph
null
We show how parametric resonance mechanism follows quench mechanism in the classical linear sigma model. The parametric resonance amplifies long wavelength modes of the pion for more than $10 fm/c$. The shifting from the quench mechanism to the parametric resonance mechanism is described by a time dependent quantity....
[ { "created": "Wed, 25 Apr 2001 03:49:27 GMT", "version": "v1" } ]
2009-11-07
[ [ "Maedan", "S.", "" ] ]
We show how parametric resonance mechanism follows quench mechanism in the classical linear sigma model. The parametric resonance amplifies long wavelength modes of the pion for more than $10 fm/c$. The shifting from the quench mechanism to the parametric resonance mechanism is described by a time dependent quantity. A...
hep-ph/9303207
null
Kumar S. Gupta, M. Arshad Momen, J. Schechter and A. Subbaraman
Heavy Quark Solitons
13 pages; LaTex; SU-4240-532; UR 1306/ER-40685-755 (Minor typos corrected)
Phys.Rev. D47 (1993) 4835-4839
10.1103/PhysRevD.47.R4835
null
hep-ph
null
We investigate the heavy baryons which arise as solitonic excitations in a ``heavy meson" chiral Lagrangian which includes the light vector particles. It is found that the effect of the light vectors may be substantial. We also present a simple derivation which clearly shows the connection to the Callan-Klebanov appr...
[ { "created": "Wed, 3 Mar 1993 00:31:00 GMT", "version": "v1" }, { "created": "Wed, 3 Mar 1993 23:04:00 GMT", "version": "v2" } ]
2009-10-22
[ [ "Gupta", "Kumar S.", "" ], [ "Momen", "M. Arshad", "" ], [ "Schechter", "J.", "" ], [ "Subbaraman", "A.", "" ] ]
We investigate the heavy baryons which arise as solitonic excitations in a ``heavy meson" chiral Lagrangian which includes the light vector particles. It is found that the effect of the light vectors may be substantial. We also present a simple derivation which clearly shows the connection to the Callan-Klebanov approa...
hep-ph/0206095
Stefano Bertolini
Stefano Bertolini
Theory Status of eps'/eps
15 pages. Invited talk at the Int. Workshop on Heavy Quarks and Leptons, Vietri sul Mare, Italy, May 27 - June 1, 2002. Refs added
Frascati Phys.Ser. 28 (2002) 275-290
null
null
hep-ph
null
I shortly review the present status of the theoretical calculations of eps'/eps and the comparison with the present experimental results. I discuss the role of higher order chiral corrections and in general of non-factorizable contributions for the explanation of the Delta I = 1/2 selection rule and direct CP violati...
[ { "created": "Mon, 10 Jun 2002 15:41:47 GMT", "version": "v1" }, { "created": "Thu, 13 Jun 2002 15:09:09 GMT", "version": "v2" } ]
2007-05-23
[ [ "Bertolini", "Stefano", "" ] ]
I shortly review the present status of the theoretical calculations of eps'/eps and the comparison with the present experimental results. I discuss the role of higher order chiral corrections and in general of non-factorizable contributions for the explanation of the Delta I = 1/2 selection rule and direct CP violation...
hep-ph/0210181
Zurab Tavartkiladze
Qaisar Shafi, Zurab Tavartkiladze
Neutrino Democracy, Fermion Mass Hierarchies And Proton Decay From 5D SU(5)
null
Phys.Rev.D67:075007,2003
10.1103/PhysRevD.67.075007
null
hep-ph
null
The explanation of various observed phenomena such as large angle neutrino oscillations, hierarchies of charged fermion masses and CKM mixings, and apparent baryon number conservation may have a common origin. We show how this could occur in 5D SUSY SU(5) supplemented by a ${\cal U}(1)$ flavor symmetry and additional...
[ { "created": "Fri, 11 Oct 2002 17:49:38 GMT", "version": "v1" } ]
2011-05-12
[ [ "Shafi", "Qaisar", "" ], [ "Tavartkiladze", "Zurab", "" ] ]
The explanation of various observed phenomena such as large angle neutrino oscillations, hierarchies of charged fermion masses and CKM mixings, and apparent baryon number conservation may have a common origin. We show how this could occur in 5D SUSY SU(5) supplemented by a ${\cal U}(1)$ flavor symmetry and additional m...
2002.02875
Andrey Pikelner
Alexander Bednyakov and Andrey Pikelner
Four-loop QCD MOM beta functions from the three-loop vertices at the symmetric point
6 pages, 1 figure, ancillary files with analytic results, minor changes, matches journal version
Phys. Rev. D 101, 071502 (2020)
10.1103/PhysRevD.101.071502
null
hep-ph hep-lat hep-th
http://creativecommons.org/licenses/by/4.0/
For the first time, we compute three-loop contributions to all triple vertices in QCD at the symmetric point. The analytic results are obtained in massless QCD with an arbitrary color group in the Landau gauge. All new loop integrals are expressed in terms of harmonic polylogarithms at the sixth root of unity. These ...
[ { "created": "Fri, 7 Feb 2020 16:20:49 GMT", "version": "v1" }, { "created": "Fri, 10 Apr 2020 11:10:04 GMT", "version": "v2" } ]
2020-04-15
[ [ "Bednyakov", "Alexander", "" ], [ "Pikelner", "Andrey", "" ] ]
For the first time, we compute three-loop contributions to all triple vertices in QCD at the symmetric point. The analytic results are obtained in massless QCD with an arbitrary color group in the Landau gauge. All new loop integrals are expressed in terms of harmonic polylogarithms at the sixth root of unity. These co...
2407.14603
Rahul Puri
Utpal Chattopadhyay, Debottam Das, Sujoy Poddar, Rahul Puri and Abhijit Kumar Saha
Implications of Sgr A$^\ast$ on the $\gamma$-rays searches of Bino Dark Matter with $(g-2)_\mu$
29 pages, 11 figures, comments are welcome
null
null
null
hep-ph astro-ph.CO
http://creativecommons.org/licenses/by/4.0/
We analyse the impact of dark matter density spike around the Milky Way's supermassive black hole (SMBH), Sgr A$^*$, in probing the Bino-dominated neutralino dark matter (DM) $\tilde \chi_1^0$ within the MSSM, which typically produces relatively faint signals in the conventional DM halos. In particular, we explore th...
[ { "created": "Fri, 19 Jul 2024 18:01:03 GMT", "version": "v1" } ]
2024-07-23
[ [ "Chattopadhyay", "Utpal", "" ], [ "Das", "Debottam", "" ], [ "Poddar", "Sujoy", "" ], [ "Puri", "Rahul", "" ], [ "Saha", "Abhijit Kumar", "" ] ]
We analyse the impact of dark matter density spike around the Milky Way's supermassive black hole (SMBH), Sgr A$^*$, in probing the Bino-dominated neutralino dark matter (DM) $\tilde \chi_1^0$ within the MSSM, which typically produces relatively faint signals in the conventional DM halos. In particular, we explore the ...
hep-ph/0004114
Hiroshi Nunokawa
Hisakazu Minakata and Hiroshi Nunokawa
Measuring Leptonic CP Violation by Low Energy Neutrino Oscillation Experiments
RevTex file, 13 pages, 2 postscript figures, revised version, some new discussions were added, Fig. 2 was replaced
Phys.Lett. B495 (2000) 369-377
10.1016/S0370-2693(00)01249-1
TMUP-HEL-0003
hep-ph
null
We uncover an interesting phenomenon that neutrino flavor transformation in slowly varying matter density imitates almost exactly that of vacuum neutrino oscillation under suitably chosen experimental parameters. It allows us to have relatively large CP violating measure \Delta P \equiv P(\nu_{\mu} \to \nu_e) - P(\ba...
[ { "created": "Wed, 12 Apr 2000 19:26:42 GMT", "version": "v1" }, { "created": "Fri, 8 Sep 2000 20:22:25 GMT", "version": "v2" } ]
2009-10-31
[ [ "Minakata", "Hisakazu", "" ], [ "Nunokawa", "Hiroshi", "" ] ]
We uncover an interesting phenomenon that neutrino flavor transformation in slowly varying matter density imitates almost exactly that of vacuum neutrino oscillation under suitably chosen experimental parameters. It allows us to have relatively large CP violating measure \Delta P \equiv P(\nu_{\mu} \to \nu_e) - P(\bar{...
1311.1547
Miguel G. Echevarria
Miguel G. Echevarria, Ahmad Idilbi, Ignazio Scimemi
Towards the Phenomenology of TMD Distributions at NNLL
5 pages. To appear in the proceedings of the XXI International Worskhop on Deep-Inelastic Scattering and Related Subjects
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the recently proposed scheme for the evolution of Transverse Momentum Distributions using the so-called "D^R". We discuss a new method to separate perturbative and non-perturbative effects in the analysis of the evolution of Transverse Momentum Distributions. We argue that the scheme is compatible with the...
[ { "created": "Wed, 6 Nov 2013 23:18:23 GMT", "version": "v1" } ]
2013-11-08
[ [ "Echevarria", "Miguel G.", "" ], [ "Idilbi", "Ahmad", "" ], [ "Scimemi", "Ignazio", "" ] ]
We discuss the recently proposed scheme for the evolution of Transverse Momentum Distributions using the so-called "D^R". We discuss a new method to separate perturbative and non-perturbative effects in the analysis of the evolution of Transverse Momentum Distributions. We argue that the scheme is compatible with the s...
hep-ph/0510327
Armen Oganesian Gourgenovitcv
A.G.Oganesian
Small size pentaquark in QCD sum rule approach
14 pages, 3fig, misprintrs are corrected,notation in fig 2,3 are corrected
null
null
null
hep-ph
null
The analysis of the sum rules (for two differentchoices of 5-quark currents) indicate that to explain experimental results it is necessary to have some one-particle lower state (and pentaquark is a reliable candidate to this state) while the two-particle coupled lower state ($NK$ system) should be excluded. Obtained ...
[ { "created": "Tue, 25 Oct 2005 01:45:18 GMT", "version": "v1" }, { "created": "Wed, 26 Oct 2005 14:32:25 GMT", "version": "v2" } ]
2007-05-23
[ [ "Oganesian", "A. G.", "" ] ]
The analysis of the sum rules (for two differentchoices of 5-quark currents) indicate that to explain experimental results it is necessary to have some one-particle lower state (and pentaquark is a reliable candidate to this state) while the two-particle coupled lower state ($NK$ system) should be excluded. Obtained su...
hep-ph/0304220
Marco Serone
Claudio A. Scrucca, Marco Serone and Luca Silvestrini
Electroweak symmetry breaking and fermion masses from extra dimensions
34 pages, 7 figures; v2: version to appear in Nucl. Phys. B
Nucl.Phys.B669:128-158,2003
10.1016/j.nuclphysb.2003.07.013
CERN-TH/2003-028, ROMA-1354/03, SISSA-32/2003/EP
hep-ph hep-th
null
We study higher-dimensional non-supersymmetric orbifold models where the Higgs field is identified with some internal component of a gauge field. We address two important and related issues that constitute severe obstacles towards model building within this type of constructions: the possibilities of achieving satisf...
[ { "created": "Wed, 23 Apr 2003 10:35:26 GMT", "version": "v1" }, { "created": "Tue, 5 Aug 2003 14:17:31 GMT", "version": "v2" } ]
2008-11-26
[ [ "Scrucca", "Claudio A.", "" ], [ "Serone", "Marco", "" ], [ "Silvestrini", "Luca", "" ] ]
We study higher-dimensional non-supersymmetric orbifold models where the Higgs field is identified with some internal component of a gauge field. We address two important and related issues that constitute severe obstacles towards model building within this type of constructions: the possibilities of achieving satisfac...
2205.10262
Lipei Du
Lipei Du (McGill U., Ohio State U.) and Ulrich Heinz (Ohio State U.)
Response of a baryon-charged medium to energetic partons
v3: title changed, published on PRC
Phys. Rev. C 106, 034903 (2022)
10.1103/PhysRevC.106.034903
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore the response to energetic partons of a baryon-charged medium produced in low energy heavy-ion collisions in which the partonic energy loss rate is expected to depend on both temperature and baryon chemical potential. The energy and momentum deposited by the partons are described by dynamical sources added ...
[ { "created": "Fri, 20 May 2022 15:47:16 GMT", "version": "v1" }, { "created": "Fri, 24 Jun 2022 15:57:51 GMT", "version": "v2" }, { "created": "Sun, 11 Sep 2022 21:18:38 GMT", "version": "v3" } ]
2022-09-13
[ [ "Du", "Lipei", "", "McGill U., Ohio State U." ], [ "Heinz", "Ulrich", "", "Ohio State U." ] ]
We explore the response to energetic partons of a baryon-charged medium produced in low energy heavy-ion collisions in which the partonic energy loss rate is expected to depend on both temperature and baryon chemical potential. The energy and momentum deposited by the partons are described by dynamical sources added to...
hep-ph/0305234
Thomas Binoth
T. Binoth and G. Heinrich
Numerical evaluation of multi-loop integrals by sector decomposition
15 pages latex, 11 eps figures included
Nucl.Phys.B680:375-388,2004
10.1016/j.nuclphysb.2003.12.023
Edinburgh/2003/06, IPPP/03/28, DCPT/03/56
hep-ph
null
In a recent paper we have presented an automated subtraction method for divergent multi-loop/leg integrals in dimensional regularisation which allows for their numerical evaluation, and applied it to diagrams with massless internal lines. Here we show how to extend this algorithm to Feynman diagrams with massive prop...
[ { "created": "Wed, 21 May 2003 17:51:32 GMT", "version": "v1" } ]
2008-11-26
[ [ "Binoth", "T.", "" ], [ "Heinrich", "G.", "" ] ]
In a recent paper we have presented an automated subtraction method for divergent multi-loop/leg integrals in dimensional regularisation which allows for their numerical evaluation, and applied it to diagrams with massless internal lines. Here we show how to extend this algorithm to Feynman diagrams with massive propag...
hep-ph/0001265
Marco Ripani
M. Ripani, V. Mokeev, M. Anghinolfi, M. Battaglieri, G. Fedotov, E. Golovach, B.Ishkhanov, M. Osipenko, G. Ricco, V. Sapunenko, M. Taiuti
A Phenomenological Description of (\pi^{-}\Delta^{++}) Photo- and Electroproduction in Nucleon Resonance Region
36 pages, 14 figures, to be published in Nucl. Phys. A
Nucl.Phys. A672 (2000) 220-248
10.1016/S0375-9474(99)00853-2
null
hep-ph
null
The (\pi^{-}\Delta^{++}) production on the nucleon by real and virtual photons is discussed as initial step in a simple model approach for the two pion photo- and electroproduction on the nucleon, with emphasis on nucleon resonance excitation which is of interest for new facilities like TJNAF. A calculation for (\pi^...
[ { "created": "Tue, 25 Jan 2000 22:53:03 GMT", "version": "v1" } ]
2019-08-17
[ [ "Ripani", "M.", "" ], [ "Mokeev", "V.", "" ], [ "Anghinolfi", "M.", "" ], [ "Battaglieri", "M.", "" ], [ "Fedotov", "G.", "" ], [ "Golovach", "E.", "" ], [ "Ishkhanov", "B.", "" ], [ "Osipenko", ...
The (\pi^{-}\Delta^{++}) production on the nucleon by real and virtual photons is discussed as initial step in a simple model approach for the two pion photo- and electroproduction on the nucleon, with emphasis on nucleon resonance excitation which is of interest for new facilities like TJNAF. A calculation for (\pi^{-...
1508.00702
Indrani Chakraborty
Indrani Chakraborty and Anirban Kundu
On the scalar potential of two-Higgs doublet models
21 pages, 10 figures, Published in Physical Review D, Title changed in the published version to "Scalar potential of two-Higgs doublet models"
Physical Review D 92, 095023 (2015)
10.1103/PhysRevD.92.095023
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We perform a detailed analysis of the Two-Higgs Doublet Model (2HDM) potential. At the tree-level, the potential may accommodate more than one minima, one of them being the electroweak (EW) minimum where the universe lives. The parameter space allowed after the data from the Large Hadron Collider (LHC) came in almost...
[ { "created": "Tue, 4 Aug 2015 08:34:14 GMT", "version": "v1" }, { "created": "Sat, 5 Dec 2015 13:37:59 GMT", "version": "v2" } ]
2015-12-08
[ [ "Chakraborty", "Indrani", "" ], [ "Kundu", "Anirban", "" ] ]
We perform a detailed analysis of the Two-Higgs Doublet Model (2HDM) potential. At the tree-level, the potential may accommodate more than one minima, one of them being the electroweak (EW) minimum where the universe lives. The parameter space allowed after the data from the Large Hadron Collider (LHC) came in almost e...
hep-ph/9405357
null
Alon E. Faraggi
Realistic Superstring Models
IASSNS-HEP-94/31, 20 pages, phyzzx
null
null
null
hep-ph hep-th
null
I discuss the construction of realistic superstring standard--like models in the four dimensional free fermionic formulation. I discuss the massless spectrum of the superstring standard--like models and the texture of fermion mass matrices. These models suggest an explanation for the top quark mass hierarchy. At the ...
[ { "created": "Mon, 23 May 1994 15:55:31 GMT", "version": "v1" } ]
2007-05-23
[ [ "Faraggi", "Alon E.", "" ] ]
I discuss the construction of realistic superstring standard--like models in the four dimensional free fermionic formulation. I discuss the massless spectrum of the superstring standard--like models and the texture of fermion mass matrices. These models suggest an explanation for the top quark mass hierarchy. At the cu...
2407.01348
Mohammed Boukidi
Abdesslam Arhrib (1), Rachid Benbrik (2), Mbark Berrouj (2) Mohammed Boukidi (2), Bouzid Manaut (3) ((1) Abdelmalek Essaadi University, Faculty of Sciences and Techniques, Tangier, Morocco, (2) Polydisciplinary Faculty, Laboratory of Fundamental and Applied Physics, Cadi Ayyad University, Sidi Bouzid, Safi, Mor...
Search for Charged Higgs Bosons through Vector-Like Top Quark Pair Production at the LHC
Comments 20 pages, 10 figures
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We investigate the production and decay of a vector-like top partner ($T$) with charge ${2}/{3}$ within the Two Higgs Doublet Model Type II (2HDM-II) extended by a vector-like quark (VLQ) doublet ($TB$). This study focuses on the decay sequence where the $T$ quark produces a charged Higgs boson ($H^+$) and a bottom q...
[ { "created": "Mon, 1 Jul 2024 15:02:09 GMT", "version": "v1" } ]
2024-07-02
[ [ "Arhrib", "Abdesslam", "" ], [ "Benbrik", "Rachid", "" ], [ "Berrouj", "Mbark", "" ], [ "Boukidi", "Mohammed", "" ], [ "Manaut", "Bouzid", "" ] ]
We investigate the production and decay of a vector-like top partner ($T$) with charge ${2}/{3}$ within the Two Higgs Doublet Model Type II (2HDM-II) extended by a vector-like quark (VLQ) doublet ($TB$). This study focuses on the decay sequence where the $T$ quark produces a charged Higgs boson ($H^+$) and a bottom qua...
hep-ph/9904500
Nikolas Kauer
N. Kauer, L. Reina, J. Repond, D. Zeppenfeld
NLO QCD predictions for internal jet shapes in DIS at HERA
10 pages, LaTeX2.09, REVTeX3.1, 9 postscript figures
Phys.Lett.B460:189-196,1999
10.1016/S0370-2693(99)00735-2
MADPH-99-1106, FSU-HEP-990419
hep-ph
null
The transverse momentum flow inside jets is a sensitive measure of internal jet structure. For the current jets in deep inelastic scattering this jet shape measure is determined at order alpha_s^2, i.e. with up to three partons inside a single jet. The scale dependence of jet shapes in various jet algorithms is discu...
[ { "created": "Fri, 30 Apr 1999 04:58:59 GMT", "version": "v1" } ]
2014-11-17
[ [ "Kauer", "N.", "" ], [ "Reina", "L.", "" ], [ "Repond", "J.", "" ], [ "Zeppenfeld", "D.", "" ] ]
The transverse momentum flow inside jets is a sensitive measure of internal jet structure. For the current jets in deep inelastic scattering this jet shape measure is determined at order alpha_s^2, i.e. with up to three partons inside a single jet. The scale dependence of jet shapes in various jet algorithms is discuss...
hep-ph/0204079
Jeffrey Bowers
Jeffrey A. Bowers (MIT), Krishna Rajagopal (MIT)
The Crystallography of Color Superconductivity
41 pages, 13 figures, 1 table
Phys.Rev. D66 (2002) 065002
10.1103/PhysRevD.66.065002
MIT-CTP-3259, NSF-ITP-02-25
hep-ph astro-ph cond-mat.soft cond-mat.stat-mech cond-mat.supr-con nucl-th
null
We develop the Ginzburg-Landau approach to comparing different possible crystal structures for the crystalline color superconducting phase of QCD, the QCD incarnation of the Larkin-Ovchinnikov-Fulde-Ferrell phase. In this phase, quarks of different flavor with differing Fermi momenta form Cooper pairs with nonzero to...
[ { "created": "Sun, 7 Apr 2002 21:11:41 GMT", "version": "v1" } ]
2016-09-06
[ [ "Bowers", "Jeffrey A.", "", "MIT" ], [ "Rajagopal", "Krishna", "", "MIT" ] ]
We develop the Ginzburg-Landau approach to comparing different possible crystal structures for the crystalline color superconducting phase of QCD, the QCD incarnation of the Larkin-Ovchinnikov-Fulde-Ferrell phase. In this phase, quarks of different flavor with differing Fermi momenta form Cooper pairs with nonzero tota...
1703.00348
Matteo Rinaldi
Matteo Rinaldi
GPDs at non-zero skewness in ADS/QCD model
6 pages, 7 figures
null
10.1016/j.physletb.2017.06.010
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study Generalized Parton Distribution functions (GPDs) usually measured in hard exclusive processes and encoding information on the three dimensional partonic structure of hadrons and their spin decomposition, for non zero skewness within the AdS/QCD formalism. To this aim the canonical scheme to calculate GPDs at...
[ { "created": "Wed, 1 Mar 2017 15:39:07 GMT", "version": "v1" } ]
2017-06-28
[ [ "Rinaldi", "Matteo", "" ] ]
We study Generalized Parton Distribution functions (GPDs) usually measured in hard exclusive processes and encoding information on the three dimensional partonic structure of hadrons and their spin decomposition, for non zero skewness within the AdS/QCD formalism. To this aim the canonical scheme to calculate GPDs at z...
1811.09510
Hua Zheng
Lilin Zhu, Hua Zheng, Ruimin Kong
Centrality and Transverse momentum dependencies of Hadrons in Xe+Xe collisions at $\sqrt{s_{NN}}=5.44$ TeV from a multi-phase transport model
6 pages, 5 figures
Eur. Phys. J. A 55, 205 (2019)
10.1140/epja/i2019-12903-3
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, we study and predict the charged-particle pseudorapidity multiplicity density ($\frac{dN_{ch}}{d\eta}$), transverse momentum spectra of identified particles and their ratios in relativistic heavy ion collisions at the Large Hadron Collider (LHC), using the string-melting version of a multi-phase transp...
[ { "created": "Tue, 13 Nov 2018 03:08:20 GMT", "version": "v1" } ]
2019-11-14
[ [ "Zhu", "Lilin", "" ], [ "Zheng", "Hua", "" ], [ "Kong", "Ruimin", "" ] ]
In this paper, we study and predict the charged-particle pseudorapidity multiplicity density ($\frac{dN_{ch}}{d\eta}$), transverse momentum spectra of identified particles and their ratios in relativistic heavy ion collisions at the Large Hadron Collider (LHC), using the string-melting version of a multi-phase transpor...
hep-ph/0303173
Hakan Snellman
Diego Pallin and Hakan Snellman
Quantum Field Theory Treatment of Neutrino Oscillations in Vacuum and in Matter
17 pages, RevTeX
null
null
null
hep-ph
null
We study neutrino oscillations in vacuum and in matter using field theoretical methods and wave-packets. In particular, we calculate the neutrino propagator in the presence of matter with constant density for the case of two flavors, obtaining the resonance formula. In the extreme relativistic limit, the result of th...
[ { "created": "Thu, 20 Mar 2003 10:23:24 GMT", "version": "v1" }, { "created": "Tue, 8 Apr 2003 08:34:26 GMT", "version": "v2" } ]
2007-05-23
[ [ "Pallin", "Diego", "" ], [ "Snellman", "Hakan", "" ] ]
We study neutrino oscillations in vacuum and in matter using field theoretical methods and wave-packets. In particular, we calculate the neutrino propagator in the presence of matter with constant density for the case of two flavors, obtaining the resonance formula. In the extreme relativistic limit, the result of the ...
hep-ph/0101208
Per Osland
Ilya F. Ginzburg (Novosibirsk), Maria Krawczyk (Warsaw), Per Osland (Bergen)
Resolving SM-like scenarios via Higgs boson production at a Photon Collider: I. 2HDM versus SM
29 pages, LaTeX, including figures
null
null
IFT 2000-21
hep-ph
null
We consider the possibility that after operations at the LHC and e^+e^- Linear Colliders a Higgs boson will be discovered, but no signal of New Physics will be found (Standard-Model-like scenario). This can occur in the Standard Model (SM) as well as in other models, including the Two-Higgs-Doublet Model (2HDM), the ...
[ { "created": "Thu, 18 Jan 2001 18:42:01 GMT", "version": "v1" } ]
2007-05-23
[ [ "Ginzburg", "Ilya F.", "", "Novosibirsk" ], [ "Krawczyk", "Maria", "", "Warsaw" ], [ "Osland", "Per", "", "Bergen" ] ]
We consider the possibility that after operations at the LHC and e^+e^- Linear Colliders a Higgs boson will be discovered, but no signal of New Physics will be found (Standard-Model-like scenario). This can occur in the Standard Model (SM) as well as in other models, including the Two-Higgs-Doublet Model (2HDM), the MS...
1504.06625
Hendrik Mantler
Hendrik Mantler, Marius Wiesemann
Hadronic Higgs production through NLO+PS in the SM, the 2HDM and the MSSM
25 pages, 5 figures
null
null
CERN-PH-TH-2015-080, ZU-TH 09/15, MCnet-15-08
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The NLO cross section of the gluon fusion process is matched to parton showers in the MC@NLO approach. We work in the framework of MadGraph5_aMC@NLO and document the inclusion of the full quark-mass dependence in the SM as well as the state-of-the-art squark and gluino effects within the MSSM embodied in the program ...
[ { "created": "Fri, 24 Apr 2015 20:00:38 GMT", "version": "v1" } ]
2015-04-28
[ [ "Mantler", "Hendrik", "" ], [ "Wiesemann", "Marius", "" ] ]
The NLO cross section of the gluon fusion process is matched to parton showers in the MC@NLO approach. We work in the framework of MadGraph5_aMC@NLO and document the inclusion of the full quark-mass dependence in the SM as well as the state-of-the-art squark and gluino effects within the MSSM embodied in the program Su...
1107.6041
Pierpaolo Mastrolia
Pierpaolo Mastrolia and Giovanni Ossola
On the Integrand-Reduction Method for Two-Loop Scattering Amplitudes
26 pages, 11 figures
null
10.1007/JHEP11(2011)014
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a first implementation of the integrand-reduction method for two-loop scattering amplitudes. We show that the residues of the amplitudes on multi-particle cuts are polynomials in the irreducible scalar products involving the loop momenta, and that the reduction of the amplitudes in terms of master integral...
[ { "created": "Fri, 29 Jul 2011 19:28:00 GMT", "version": "v1" } ]
2015-05-30
[ [ "Mastrolia", "Pierpaolo", "" ], [ "Ossola", "Giovanni", "" ] ]
We propose a first implementation of the integrand-reduction method for two-loop scattering amplitudes. We show that the residues of the amplitudes on multi-particle cuts are polynomials in the irreducible scalar products involving the loop momenta, and that the reduction of the amplitudes in terms of master integrals ...
2007.15317
Mansoor Ur Rehman
George Lazarides, Mansoor Ur Rehman, and Qaisar Shafi
Proton Decay in Supersymmetric $SU(4)_c \times SU(2)_L \times SU(2)_R$
Version-2: 20 pages, 7 figures, version published in JHEP
J. High Energ. Phys. 2020, 85 (2020)
10.1007/JHEP10(2020)085
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss proton decay in a recently proposed model of supersymmetric hybrid inflation based on the gauge symmetry $SU(4)_c \times SU(2)_L \times SU(2)_R$. A $U(1)\, R$ symmetry plays an essential role in realizing inflation as well as in eliminating some undesirable baryon number violating operators. Proton decay i...
[ { "created": "Thu, 30 Jul 2020 08:55:36 GMT", "version": "v1" }, { "created": "Wed, 14 Oct 2020 15:42:43 GMT", "version": "v2" } ]
2020-10-15
[ [ "Lazarides", "George", "" ], [ "Rehman", "Mansoor Ur", "" ], [ "Shafi", "Qaisar", "" ] ]
We discuss proton decay in a recently proposed model of supersymmetric hybrid inflation based on the gauge symmetry $SU(4)_c \times SU(2)_L \times SU(2)_R$. A $U(1)\, R$ symmetry plays an essential role in realizing inflation as well as in eliminating some undesirable baryon number violating operators. Proton decay is ...
hep-ph/9707374
Vittorio Lubicz
V. Lubicz
Determinations of Standard Model Parameters from Lattice QCD
19 pages, LaTeX, 2 figures. Talk given at the "APCTP-ICTP Joint International Conference '97", May 26 - May 30 1997, Seoul, Korea
null
null
null
hep-ph hep-lat
null
In this talk I review some recent results from lattice QCD calculations which aim to a more accurate determination of the Standard Model parameters in the quark sector. After a review of our current knowledge of these parameters, I present lattice results for the strange, charm and bottom quark masses, the CKM matrix...
[ { "created": "Thu, 17 Jul 1997 12:31:52 GMT", "version": "v1" } ]
2007-05-23
[ [ "Lubicz", "V.", "" ] ]
In this talk I review some recent results from lattice QCD calculations which aim to a more accurate determination of the Standard Model parameters in the quark sector. After a review of our current knowledge of these parameters, I present lattice results for the strange, charm and bottom quark masses, the CKM matrix e...
0906.3103
Peihong Gu
Pei-Hong Gu, Utpal Sarkar, Xinmin Zhang
Visible and Dark Matter Genesis and Cosmic Positron/Electron Excesses
5 pages, 2 figures. Minor modification. Accepted by PRD
Phys.Rev.D80:076003,2009
10.1103/PhysRevD.80.076003
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Dark and baryonic matter contribute comparable energy density to the present Universe. The dark matter may also be responsible for the cosmic positron/electron excesses. We connect these phenomena with Dirac seesaw for neutrino masses. In our model (i) the dark matter relic density is a dark matter asymmetry generate...
[ { "created": "Wed, 17 Jun 2009 14:44:25 GMT", "version": "v1" }, { "created": "Thu, 2 Jul 2009 14:41:15 GMT", "version": "v2" }, { "created": "Thu, 24 Sep 2009 09:07:28 GMT", "version": "v3" } ]
2009-10-29
[ [ "Gu", "Pei-Hong", "" ], [ "Sarkar", "Utpal", "" ], [ "Zhang", "Xinmin", "" ] ]
Dark and baryonic matter contribute comparable energy density to the present Universe. The dark matter may also be responsible for the cosmic positron/electron excesses. We connect these phenomena with Dirac seesaw for neutrino masses. In our model (i) the dark matter relic density is a dark matter asymmetry generated ...
hep-ph/9806445
Sharon Jensen
Stanley J. Brodsky
Commensurate Scale Relations and the Abelian Correspondence Principle
LaTex, 14 pages
null
null
SLAC-PUB-7861
hep-ph
null
Commensurate scale relations are perturbative QCD predictions which relate observable to observable at fixed relative scales, independent of the choice of intermediate renormalization scheme or other theoretical conventions. A prominent example is the "generalized Crewther relation" which connects the Bjorken and Gro...
[ { "created": "Mon, 22 Jun 1998 21:36:33 GMT", "version": "v1" } ]
2007-05-23
[ [ "Brodsky", "Stanley J.", "" ] ]
Commensurate scale relations are perturbative QCD predictions which relate observable to observable at fixed relative scales, independent of the choice of intermediate renormalization scheme or other theoretical conventions. A prominent example is the "generalized Crewther relation" which connects the Bjorken and Gross...
hep-ph/0106076
Samvel Ter-Antonyan
S.V. Ter-Antonyan (1) and P.L. Biermann (2) ((1) Yerevan Physics Institute, Yerevan, Armenia, (2) Max-Planck-Institute fur Radioastronomie, Bonn, Germany)
Flux of upward high-energy muons at the multi-component primary energy spectrum
4 pages, 5 figures, to appear in proceedings of 27th ICRC (Hamburg, August 7-15, 2001)
null
null
null
hep-ph
null
The atmospheric neutrino-induced upward muon flux are calculated by using the multi-component primary energy spectrum, CORSIKA EAS simulation code for the reproduction of the atmospheric neutrino spectra and improved parton model for charged-current cross sections. The results are obtained at 0.1-1000 TeV muon energy...
[ { "created": "Thu, 7 Jun 2001 09:14:33 GMT", "version": "v1" } ]
2007-05-23
[ [ "Ter-Antonyan", "S. V.", "" ], [ "Biermann", "P. L.", "" ] ]
The atmospheric neutrino-induced upward muon flux are calculated by using the multi-component primary energy spectrum, CORSIKA EAS simulation code for the reproduction of the atmospheric neutrino spectra and improved parton model for charged-current cross sections. The results are obtained at 0.1-1000 TeV muon energy r...
1606.02855
Zhi-Gang Wang
Zhi-Gang Wang
Analysis of the strong decays $D_{s3}^*(2860)\to DK$, $D^{*}K$ with QCD sum rules
18 pages, 6 figures
Eur. Phys. J. A52 (2016) 303
10.1140/epja/i2016-16303-y
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this article, we assign the $D_{s3}^*(2860)$ to be a D-wave $c\bar{s}$ meson, study the hadronic coupling constants $G_{D_{s3}^*(2860)DK}$ and $G_{D_{s3}^*(2860)D^*K}$ with the three-point QCD sum rules, and calculate the partial decay widths $\Gamma\left(D_{s3}^*(2860)\to D^{*}K\right)$ and $\Gamma\left(D_{s3}^*(...
[ { "created": "Thu, 9 Jun 2016 08:06:52 GMT", "version": "v1" }, { "created": "Sun, 14 Aug 2016 03:34:18 GMT", "version": "v2" } ]
2016-09-29
[ [ "Wang", "Zhi-Gang", "" ] ]
In this article, we assign the $D_{s3}^*(2860)$ to be a D-wave $c\bar{s}$ meson, study the hadronic coupling constants $G_{D_{s3}^*(2860)DK}$ and $G_{D_{s3}^*(2860)D^*K}$ with the three-point QCD sum rules, and calculate the partial decay widths $\Gamma\left(D_{s3}^*(2860)\to D^{*}K\right)$ and $\Gamma\left(D_{s3}^*(28...
2104.03977
Yong Xu
Manuel Drees, Yong Xu
Small Field Polynomial Inflation: Reheating, Radiative Stability and Lower Bound
v2: typos corrected, references updated; expanded discussion on preheating and inflaton scattering; version accepted by JCAP
null
10.1088/1475-7516/2021/09/012
null
hep-ph astro-ph.CO hep-th
http://creativecommons.org/licenses/by/4.0/
We revisit the renormalizable polynomial inflection point model of inflation, focusing on the small field scenario which can be treated fully analytically. In particular, the running of the spectral index is predicted to be $\alpha = -1.43 \times 10^{-3} +5.56 \times 10^{-5} \left(N_{\rm CMB}-65 \right)$, which might...
[ { "created": "Thu, 8 Apr 2021 18:00:03 GMT", "version": "v1" }, { "created": "Fri, 20 Aug 2021 08:17:49 GMT", "version": "v2" } ]
2021-09-22
[ [ "Drees", "Manuel", "" ], [ "Xu", "Yong", "" ] ]
We revisit the renormalizable polynomial inflection point model of inflation, focusing on the small field scenario which can be treated fully analytically. In particular, the running of the spectral index is predicted to be $\alpha = -1.43 \times 10^{-3} +5.56 \times 10^{-5} \left(N_{\rm CMB}-65 \right)$, which might b...
hep-ph/0211409
Karim Benakli
I. Antoniadis, K. Benakli, A. Laugier, T. Maillard
Brane to bulk supersymmetry breaking and radion force at micron distances
One equation and one figure corrected. Two references added. Version to be published in Nuclear Physics B
Nucl.Phys. B662 (2003) 40-62
10.1016/S0550-3213(03)00255-4
null
hep-ph hep-th
null
We study mediation of supersymmetry breaking in the bulk, in models with primordial supersymmetry breaking on D-branes at the string scale, in the TeV region. We compute the gravitino and scalar masses up to one-loop level, as well as the radion coupling to matter. We find that the latter mediates a model independent...
[ { "created": "Tue, 26 Nov 2002 19:10:22 GMT", "version": "v1" }, { "created": "Fri, 16 May 2003 13:49:32 GMT", "version": "v2" } ]
2009-11-07
[ [ "Antoniadis", "I.", "" ], [ "Benakli", "K.", "" ], [ "Laugier", "A.", "" ], [ "Maillard", "T.", "" ] ]
We study mediation of supersymmetry breaking in the bulk, in models with primordial supersymmetry breaking on D-branes at the string scale, in the TeV region. We compute the gravitino and scalar masses up to one-loop level, as well as the radion coupling to matter. We find that the latter mediates a model independent f...
2305.02428
V\'itor Hugo Ribeiro
Vitor Hugo Ribeiro, David Dobrigkeit Chinellato, Michael Annan Lisa, Willian Matioli Serenone, Chun Shen, Jun Takahashi and Giorgio Torrieri
$\Lambda$ polarization from vortex ring as medium response for jet thermalization
null
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We performed a systematic study on the formation of vorticity rings as the process for jet thermalization in the medium created in high-energy nuclear collisions. In this work, we expanded our previous analysis to a more realistic framework by considering non-central events and fluctuations in the initial condition. ...
[ { "created": "Wed, 3 May 2023 20:58:36 GMT", "version": "v1" }, { "created": "Thu, 8 Jun 2023 14:46:41 GMT", "version": "v2" } ]
2023-06-09
[ [ "Ribeiro", "Vitor Hugo", "" ], [ "Chinellato", "David Dobrigkeit", "" ], [ "Lisa", "Michael Annan", "" ], [ "Serenone", "Willian Matioli", "" ], [ "Shen", "Chun", "" ], [ "Takahashi", "Jun", "" ], [ "Torrieri", ...
We performed a systematic study on the formation of vorticity rings as the process for jet thermalization in the medium created in high-energy nuclear collisions. In this work, we expanded our previous analysis to a more realistic framework by considering non-central events and fluctuations in the initial condition. We...
hep-ph/9210215
null
G. Curci and G. Ricciardi
QCD non-leading corrections to weak decays in the dimensional scheme
20 pages, latex file, 3 figures (not included)
Phys.Rev. D47 (1993) 2991-3000
10.1103/PhysRevD.47.2991
null
hep-ph
null
We compute the next to leading QCD corrections to weak four fermion interactions introducing a scheme that does not require an explicit definition of $\gamma_5$ in $d$ dimensions. This scheme reduces greatly the difficulties in calculating the two loop anomalous dimensions; we recover the results obtained in the prev...
[ { "created": "Tue, 6 Oct 1992 18:18:23 GMT", "version": "v1" } ]
2016-09-01
[ [ "Curci", "G.", "" ], [ "Ricciardi", "G.", "" ] ]
We compute the next to leading QCD corrections to weak four fermion interactions introducing a scheme that does not require an explicit definition of $\gamma_5$ in $d$ dimensions. This scheme reduces greatly the difficulties in calculating the two loop anomalous dimensions; we recover the results obtained in the previo...
1905.09192
Stephanie Baines
Stephanie Baines
Effective Field Theory Treatment of Monopole Production by Drell-Yan and Photon Fusion for Various Spins
11 pages, 14 figures, conference proceeding
MDPI Proceedings 2019, 13(1), 1
10.3390/proceedings2019013001
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
A resolution over the existence of magnetic charges has eluded the high energy physics community for centuries, and their search has gained momentum as recent models predict these may be observable at current colliders. They appear in field theories in two forms: the widely studied but heavily suppressed monopole wit...
[ { "created": "Wed, 22 May 2019 15:24:27 GMT", "version": "v1" } ]
2019-05-23
[ [ "Baines", "Stephanie", "" ] ]
A resolution over the existence of magnetic charges has eluded the high energy physics community for centuries, and their search has gained momentum as recent models predict these may be observable at current colliders. They appear in field theories in two forms: the widely studied but heavily suppressed monopole with ...
1005.0872
Ian Low
Ian Low and Joseph Lykken
Revealing the electroweak properties of a new scalar resonance
23 pages, two figures; v2: minor revision and version to appear in JHEP
JHEP 1010:053,2010
10.1007/JHEP10(2010)053
ANL-HEP-PR-10-14, FERMILAB-PUB-10-098-T, NUHEP-TH/10-05
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
One or more new heavy resonances may be discovered in experiments at the CERN Large Hadron Collider. In order to determine if such a resonance is the long-awaited Higgs boson, it is essential to pin down its spin, CP, and electroweak quantum numbers. Here we describe how to determine what role a newly-discovered neut...
[ { "created": "Thu, 6 May 2010 01:20:14 GMT", "version": "v1" }, { "created": "Fri, 24 Sep 2010 20:08:31 GMT", "version": "v2" } ]
2014-11-21
[ [ "Low", "Ian", "" ], [ "Lykken", "Joseph", "" ] ]
One or more new heavy resonances may be discovered in experiments at the CERN Large Hadron Collider. In order to determine if such a resonance is the long-awaited Higgs boson, it is essential to pin down its spin, CP, and electroweak quantum numbers. Here we describe how to determine what role a newly-discovered neutra...
hep-ph/0109195
Robert van Gulik
F. A. Berends, R. van Gulik
GaGaRes: A Monte Carlo generator for resonance production in two-photon physics
21 pages, no figures
Comput.Phys.Commun. 144 (2002) 82-103
10.1016/S0010-4655(01)00466-0
null
hep-ph
null
In this paper a Monte Carlo generator, GaGaRes, is presented which can be used to describe two-photon resonance production in e^+e^- collisions. The program can generate the five lowest-lying C=+1 meson states of any q\bar{q} combination together with the outgoing electron and positron. The dependence on the photon v...
[ { "created": "Fri, 21 Sep 2001 13:19:14 GMT", "version": "v1" } ]
2009-11-07
[ [ "Berends", "F. A.", "" ], [ "van Gulik", "R.", "" ] ]
In this paper a Monte Carlo generator, GaGaRes, is presented which can be used to describe two-photon resonance production in e^+e^- collisions. The program can generate the five lowest-lying C=+1 meson states of any q\bar{q} combination together with the outgoing electron and positron. The dependence on the photon vir...
hep-ph/9609379
Pieter Rijken
P.J. Rijken, W.L. van Neerven
$O(\alpha_s^2)$ Contributions to the asymmetric fragmentation function in $e^+e^-$ annihilation
15 pages, latex2e, uses mcite, amsfonts. PostScript version also available at http://rulgm4.leidenuniv.nl/preprints/asymmfrag.ps
Phys.Lett.B392:207-215,1997
10.1016/S0370-2693(96)01529-8
INLO-PUB-10/96
hep-ph
null
The order \alpha_s^2 contributions to the coefficient functions corresponding to the asymmetric fragmentation function $F_A(x,Q^2)$ in $e^+e^-$ annihilation are calculated. From this calculation we infer that the order $(\alpha_s/4\pi)^2$ correction to the flavour asymmetry sum rule is non vanishing and amounts to $-...
[ { "created": "Tue, 17 Sep 1996 12:43:09 GMT", "version": "v1" } ]
2011-08-11
[ [ "Rijken", "P. J.", "" ], [ "van Neerven", "W. L.", "" ] ]
The order \alpha_s^2 contributions to the coefficient functions corresponding to the asymmetric fragmentation function $F_A(x,Q^2)$ in $e^+e^-$ annihilation are calculated. From this calculation we infer that the order $(\alpha_s/4\pi)^2$ correction to the flavour asymmetry sum rule is non vanishing and amounts to $-12...
hep-ph/9310367
Layssac Jacques
J. Layssac, F.M. Renard, C.Verzegnassi
Four Fermion Processes at Future $e^+e^-$ Colliders as a Probe of New Resonant Structures
11 pages, postscript file of 3 figures appended at the end of the latex file PM/93-34 UTS-DFT-93-28
Phys.Rev.D49:2143-2148,1994
10.1103/PhysRevD.49.R2143
null
hep-ph
null
Possible oblique effects from vector particles that are strongly coupled to the known gauge bosons are calculated for the case of final hadronic states produced at future $e^+e^-$ colliders, using a formalism that was recently proposed and that exploits the information and the constraints provided by LEP 1 results. C...
[ { "created": "Thu, 28 Oct 1993 13:45:07 GMT", "version": "v1" } ]
2019-08-17
[ [ "Layssac", "J.", "" ], [ "Renard", "F. M.", "" ], [ "Verzegnassi", "C.", "" ] ]
Possible oblique effects from vector particles that are strongly coupled to the known gauge bosons are calculated for the case of final hadronic states produced at future $e^+e^-$ colliders, using a formalism that was recently proposed and that exploits the information and the constraints provided by LEP 1 results. Com...
hep-ph/0506260
Luis F. Urrutia
Luis F. Urrutia
Corrections to flat-space particle dynamics arising from space granularity
49 pages, 6 figures and 4 tables. Extended version of the talk given at the 339-th WE-Heraeus-Seminar: Special Relativity, will it survive the next 100 years?, Potsdam, february 2005
Lect.NotesPhys.702:299-345,2006
10.1007/3-540-34523-X_11
null
hep-ph gr-qc
null
The construction of effective Hamiltonians describing corrections to flat space particle dynamics arising from the granularity of space at very short distances is discussed in the framework of an heuristic approach to the semiclassical limit of loop quantum gravity. After some general motivation of the subject, a bri...
[ { "created": "Fri, 24 Jun 2005 20:30:45 GMT", "version": "v1" } ]
2008-11-26
[ [ "Urrutia", "Luis F.", "" ] ]
The construction of effective Hamiltonians describing corrections to flat space particle dynamics arising from the granularity of space at very short distances is discussed in the framework of an heuristic approach to the semiclassical limit of loop quantum gravity. After some general motivation of the subject, a brief...
0901.1430
Leonid Satarov
L.M. Satarov, M.N. Dmitriev, and I.N. Mishustin
Equation of state of hadron resonance gas and the phase diagram of strongly interacting matter
40 pages, 31 figures
Phys.Atom.Nucl.72:1390-1415,2009
10.1134/S1063778809080146
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The equation of state of hadron resonance gas at finite temperature and baryon density is calculated taking into account finite-size effects within the excluded volume model. Contributions of known hadrons with masses up to 2 GeV are included in the zero-width approximation. Special attention is paid to the role of s...
[ { "created": "Sun, 11 Jan 2009 11:35:34 GMT", "version": "v1" } ]
2010-04-14
[ [ "Satarov", "L. M.", "" ], [ "Dmitriev", "M. N.", "" ], [ "Mishustin", "I. N.", "" ] ]
The equation of state of hadron resonance gas at finite temperature and baryon density is calculated taking into account finite-size effects within the excluded volume model. Contributions of known hadrons with masses up to 2 GeV are included in the zero-width approximation. Special attention is paid to the role of str...
hep-ph/0311169
Olaf Kittel
O. Kittel
CP violation in production of neutralinos in e+ e- collisions
8 pages, 7 figures, talk given at the International Workshop on Astroparticle and High Energy Physics (AHEP), Valencia, Spain, 14-18 Oct. 2003
null
null
WUE-ITP-03-023, IFIC-03-52
hep-ph
null
We propose T-odd and CP-odd odd asymmetries in order to analyze the impact of CP violating phases in neutralino production and subsequent leptonic two-body decays. We present numerical results of these asymmetries and of the cross sections for complex parameters \mu, M_1 and A_\tau, which may be present in the neutra...
[ { "created": "Thu, 13 Nov 2003 15:58:33 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kittel", "O.", "" ] ]
We propose T-odd and CP-odd odd asymmetries in order to analyze the impact of CP violating phases in neutralino production and subsequent leptonic two-body decays. We present numerical results of these asymmetries and of the cross sections for complex parameters \mu, M_1 and A_\tau, which may be present in the neutrali...
hep-ph/0507018
Constantin Loizides
C. Loizides (MIT)
Jet correlation measurement in heavy-ion collisions: from RHIC to LHC
9 pages, 7 figures, proceedings, MIT workshop on fluctuations and correlations in relativistic nuclear collisions
J.Phys.Conf.Ser. 27 (2005) 226
10.1088/1742-6596/27/1/024
null
hep-ph
null
We attempt to deduce simple options of `jet quenching' phenomena in heavy-ion collisions at $\snn=5.5 \tev$ at the LHC from the present knowledge of leading-hadron suppression at RHIC energies. In light of the nuclear modification factor for leading particles we introduce the nuclear modification factor for jets, $\R...
[ { "created": "Fri, 1 Jul 2005 19:03:01 GMT", "version": "v1" }, { "created": "Tue, 20 Sep 2005 23:25:17 GMT", "version": "v2" } ]
2009-11-11
[ [ "Loizides", "C.", "", "MIT" ] ]
We attempt to deduce simple options of `jet quenching' phenomena in heavy-ion collisions at $\snn=5.5 \tev$ at the LHC from the present knowledge of leading-hadron suppression at RHIC energies. In light of the nuclear modification factor for leading particles we introduce the nuclear modification factor for jets, $\RAA...
2108.10786
Rob Verheyen
Helen Brooks, Peter Skands, Rob Verheyen
Interleaved Resonance Decays and Electroweak Radiation in Vincia
38 pages, 15 figures
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We propose a framework for high-energy interactions in which resonance decays and electroweak branching processes are interleaved with the QCD evolution in a single common sequence of decreasing resolution scales. The interleaved treatment of resonance decays allows for a new treatment of finite-width effects in part...
[ { "created": "Tue, 24 Aug 2021 15:09:33 GMT", "version": "v1" }, { "created": "Mon, 10 Jan 2022 09:52:56 GMT", "version": "v2" } ]
2022-01-11
[ [ "Brooks", "Helen", "" ], [ "Skands", "Peter", "" ], [ "Verheyen", "Rob", "" ] ]
We propose a framework for high-energy interactions in which resonance decays and electroweak branching processes are interleaved with the QCD evolution in a single common sequence of decreasing resolution scales. The interleaved treatment of resonance decays allows for a new treatment of finite-width effects in parton...
hep-ph/0007183
Kresimir Kumericki
J. O. Eeg, K. Kumericki and I. Picek
Bound-state effects in \mu^+ e^- \to \gamma\gamma and \bar{B}^{0}_s \to \gamma\gamma decays
6 pages, 3 figures, to appear in Eur. Phys. J. C
Eur.Phys.J.C17:163-168,2000
10.1007/s100520000471
OSLO-TP 3-00, ZAGREB-ZTF-00/02
hep-ph
null
We demonstrate that in the double-radiative decays of heavy-light QED and QCD atoms, \mu^{+} e^{-} \to \gamma\gamma and \bar{B}^{0}_{s} \to \gamma\gamma, there is a contribution coming from operators that vanish on the free-quark mass shell. This off-shell effect is suppressed with respect to the effect of the well k...
[ { "created": "Mon, 17 Jul 2000 23:26:17 GMT", "version": "v1" } ]
2011-09-13
[ [ "Eeg", "J. O.", "" ], [ "Kumericki", "K.", "" ], [ "Picek", "I.", "" ] ]
We demonstrate that in the double-radiative decays of heavy-light QED and QCD atoms, \mu^{+} e^{-} \to \gamma\gamma and \bar{B}^{0}_{s} \to \gamma\gamma, there is a contribution coming from operators that vanish on the free-quark mass shell. This off-shell effect is suppressed with respect to the effect of the well kno...
hep-ph/0205053
Emilio Torrente-Lujan
P. Aliani, V. Antonelli, M. Picariello, R. Ferrari, E. Torrente-Lujan
Determination of Neutrino mixing parameters after SNO oscillation evidence
null
Phys.Rev. D67 (2003) 013006
10.1103/PhysRevD.67.013006
CERN-TH-2002-170, IFUM-716/FT, FTUAM-02-378, MMN-02-2002
hep-ph
null
An updated analysis of all available neutrino oscillation evidence in Solar experiments (SK day and night spectra, global rates from Homestake, SAGE and GALLEX) including the latest SNO CC and NC data is presented. Assuming that the shape of the SNO CC energy spectrum is undistorted and using the information provided...
[ { "created": "Mon, 6 May 2002 18:10:41 GMT", "version": "v1" }, { "created": "Mon, 6 May 2002 22:09:19 GMT", "version": "v2" }, { "created": "Tue, 14 May 2002 17:57:04 GMT", "version": "v3" } ]
2007-06-22
[ [ "Aliani", "P.", "" ], [ "Antonelli", "V.", "" ], [ "Picariello", "M.", "" ], [ "Ferrari", "R.", "" ], [ "Torrente-Lujan", "E.", "" ] ]
An updated analysis of all available neutrino oscillation evidence in Solar experiments (SK day and night spectra, global rates from Homestake, SAGE and GALLEX) including the latest SNO CC and NC data is presented. Assuming that the shape of the SNO CC energy spectrum is undistorted and using the information provided b...
1305.6467
Kristian McDonald
Sandy S. C. Law and Kristian L. McDonald
A Class of Inert N-tuplet Models with Radiative Neutrino Mass and Dark Matter
1+22 pages; v2 journal version
null
10.1007/JHEP09(2013)092
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a class of models with radiative neutrino mass and stable dark-matter candidates. Neutrino mass is generated by a one-loop diagram with the same topography as Ma's 2006 proposal (which used an inert scalar-doublet and singlet fermion). We generalize this approach and determine all variants with new fields ...
[ { "created": "Tue, 28 May 2013 12:23:23 GMT", "version": "v1" }, { "created": "Mon, 23 Sep 2013 07:15:48 GMT", "version": "v2" } ]
2015-06-16
[ [ "Law", "Sandy S. C.", "" ], [ "McDonald", "Kristian L.", "" ] ]
We present a class of models with radiative neutrino mass and stable dark-matter candidates. Neutrino mass is generated by a one-loop diagram with the same topography as Ma's 2006 proposal (which used an inert scalar-doublet and singlet fermion). We generalize this approach and determine all variants with new fields no...
1805.11622
Eleanor Hall
Eleanor Hall and Jesse Thaler
Photon isolation and jet substructure
23 pages, 6 figures; v2: minor changes to match journal version
JHEP 09 (2018) 164
10.1007/JHEP09(2018)164
MIT-CTP/5011
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We introduce soft drop isolation, a new photon isolation criterion inspired by jet substructure techniques. Soft drop isolation is collinear safe and is equivalent to Frixione isolation at leading non-trivial order in the small R limit. However, soft drop isolation has the interesting feature of being democratic, mea...
[ { "created": "Tue, 29 May 2018 18:00:01 GMT", "version": "v1" }, { "created": "Wed, 3 Oct 2018 02:08:05 GMT", "version": "v2" } ]
2021-04-21
[ [ "Hall", "Eleanor", "" ], [ "Thaler", "Jesse", "" ] ]
We introduce soft drop isolation, a new photon isolation criterion inspired by jet substructure techniques. Soft drop isolation is collinear safe and is equivalent to Frixione isolation at leading non-trivial order in the small R limit. However, soft drop isolation has the interesting feature of being democratic, meani...
2403.04990
Yi-An Chen
Yi-An Chen, Kai-Feng Chen
Jet Discrimination with Quantum Complete Graph Neural Network
null
null
null
null
hep-ph cs.LG quant-ph
http://creativecommons.org/licenses/by/4.0/
Machine learning, particularly deep neural networks, has been widely utilized in high energy physics and has shown remarkable results in various applications. Moreover, the concept of machine learning has been extended to quantum computers, giving rise to a new research area known as quantum machine learning. In this...
[ { "created": "Fri, 8 Mar 2024 02:02:23 GMT", "version": "v1" }, { "created": "Tue, 12 Mar 2024 06:35:49 GMT", "version": "v2" } ]
2024-03-13
[ [ "Chen", "Yi-An", "" ], [ "Chen", "Kai-Feng", "" ] ]
Machine learning, particularly deep neural networks, has been widely utilized in high energy physics and has shown remarkable results in various applications. Moreover, the concept of machine learning has been extended to quantum computers, giving rise to a new research area known as quantum machine learning. In this p...
hep-ph/0601028
Jernej Kamenik
Svjetlana Fajfer, Jernej Kamenik
Note on helicity amplitudes in D to V semileptonic decays
4 pages, 5 figures
Phys.Rev.D73:057503,2006
10.1103/PhysRevD.73.057503
null
hep-ph
null
Motivated by the recent extraction of the helicity amplitudes for the D+ -> K*0bar mu+ nu decay, done by the FOCUS collaboration, we determine helicity amplitudes for the D+ -> K*0bar l nu, D+ -> rho0 l nu and Ds -> phi l nu semileptonic decays using the knowledge of the relevant form factors. The vector and axial fo...
[ { "created": "Wed, 4 Jan 2006 17:27:16 GMT", "version": "v1" } ]
2008-11-26
[ [ "Fajfer", "Svjetlana", "" ], [ "Kamenik", "Jernej", "" ] ]
Motivated by the recent extraction of the helicity amplitudes for the D+ -> K*0bar mu+ nu decay, done by the FOCUS collaboration, we determine helicity amplitudes for the D+ -> K*0bar l nu, D+ -> rho0 l nu and Ds -> phi l nu semileptonic decays using the knowledge of the relevant form factors. The vector and axial form...
hep-ph/9404339
Ramon Toldra. Ifae
Eduard Mass\'o and Ramon Toldr\`a
Constraints on Neutrino-Neutrino Interactions from Primordial Nucleosynthesis
LaTex, 6p., UAB-FT-339
Phys.Lett. B333 (1994) 132-134
10.1016/0370-2693(94)91018-9
null
hep-ph astro-ph
null
We use the constraints arising from primordial nucleosynthesis to bound the strength $F$ of non-standard neutrino-neutrino interactions, when the right-handed neutrinos participate in the interaction. We find $F < 3 \times 10^{-3}\ G_F$, which is five orders of magnitude more stringent than the limit obtained using L...
[ { "created": "Tue, 26 Apr 1994 13:13:16 GMT", "version": "v1" } ]
2009-10-28
[ [ "Massó", "Eduard", "" ], [ "Toldrà", "Ramon", "" ] ]
We use the constraints arising from primordial nucleosynthesis to bound the strength $F$ of non-standard neutrino-neutrino interactions, when the right-handed neutrinos participate in the interaction. We find $F < 3 \times 10^{-3}\ G_F$, which is five orders of magnitude more stringent than the limit obtained using LEP...
2407.17549
Chandan Hati
Fei Gao, Julia Harz, Chandan Hati, Yi Lu, Isabel M. Oldengott, Graham White
Baryogenesis and first-order QCD transition with gravitational waves from a large lepton asymmetry
50 pages, 9 figures
null
null
MITP-24-060
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A large primordial lepton asymmetry can lead to successful baryogenesis by preventing the restoration of electroweak symmetry at high temperatures, thereby suppressing the sphaleron rate. This asymmetry can also lead to a first-order cosmic QCD transition, accompanied by detectable gravitational wave (GW) signals. By...
[ { "created": "Wed, 24 Jul 2024 18:00:00 GMT", "version": "v1" } ]
2024-07-26
[ [ "Gao", "Fei", "" ], [ "Harz", "Julia", "" ], [ "Hati", "Chandan", "" ], [ "Lu", "Yi", "" ], [ "Oldengott", "Isabel M.", "" ], [ "White", "Graham", "" ] ]
A large primordial lepton asymmetry can lead to successful baryogenesis by preventing the restoration of electroweak symmetry at high temperatures, thereby suppressing the sphaleron rate. This asymmetry can also lead to a first-order cosmic QCD transition, accompanied by detectable gravitational wave (GW) signals. By e...
0901.3414
Lance Dixon
Lance J. Dixon
Matter Dependence of the Three-Loop Soft Anomalous Dimension Matrix
5 pages, 2 figures; v2 minor clarifications, references added
Phys.Rev.D79:091501,2009
10.1103/PhysRevD.79.091501
SLAC-PUB-13517
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The resummation of soft gluon exchange for QCD hard scattering requires a matrix of anomalous dimensions, which has been computed through two loops. The two-loop matrix is proportional to the one-loop matrix. Recently there have been proposals that this proportionality extends to higher loops. One can test such propo...
[ { "created": "Thu, 22 Jan 2009 17:48:35 GMT", "version": "v1" }, { "created": "Tue, 27 Jan 2009 17:06:03 GMT", "version": "v2" } ]
2009-10-29
[ [ "Dixon", "Lance J.", "" ] ]
The resummation of soft gluon exchange for QCD hard scattering requires a matrix of anomalous dimensions, which has been computed through two loops. The two-loop matrix is proportional to the one-loop matrix. Recently there have been proposals that this proportionality extends to higher loops. One can test such proposa...
0802.2568
Can Kilic
Can Kilic, Takemichi Okui, Raman Sundrum
Colored Resonances at the Tevatron: Phenomenology and Discovery Potential in Multijets
20 pages, 7 figures, pdflatex. Version to be published in JHEP, paragraphs added discussing the phenomenology beyond the benchmark model, one reference added
JHEP 0807:038,2008
10.1088/1126-6708/2008/07/038
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
There exist several classes of theories beyond the Standard Model which contain massive spin-1 color octets, generically called "colorons". Indeed we argue that colorons inevitably appear in the spectrum whenever new colored particles feel an additional confining force. Colorons are distinctive at hadron colliders as...
[ { "created": "Tue, 19 Feb 2008 20:07:45 GMT", "version": "v1" }, { "created": "Tue, 26 Feb 2008 17:58:40 GMT", "version": "v2" }, { "created": "Tue, 1 Jul 2008 19:22:09 GMT", "version": "v3" } ]
2009-03-19
[ [ "Kilic", "Can", "" ], [ "Okui", "Takemichi", "" ], [ "Sundrum", "Raman", "" ] ]
There exist several classes of theories beyond the Standard Model which contain massive spin-1 color octets, generically called "colorons". Indeed we argue that colorons inevitably appear in the spectrum whenever new colored particles feel an additional confining force. Colorons are distinctive at hadron colliders as t...
0805.0018
Yogiro Hama
R.P.G. Andrade (1), F. Grassi (1), Y. Hama (1), T. Kodama (2) and W.L. Qian (1) ((1) Sao Paulo U., Brazil, (2) Rio de Janeiro F.U., Brazil)
Importance of Granular Structure in the Initial Conditions for the Elliptic Flow
4 pages, 5 figures
Phys.Rev.Lett.101:112301,2008
10.1103/PhysRevLett.101.112301
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show effects of granular structure of the initial conditions (IC) of hydrodynamic description of high-energy nucleus-nucleus collisions on some observables, especially on the elliptic-flow parameter v2. Such a structure enhances production of isotropically distributed high-pT particles, making v2 smaller there. Al...
[ { "created": "Wed, 30 Apr 2008 22:31:24 GMT", "version": "v1" } ]
2009-05-12
[ [ "Andrade", "R. P. G.", "", "Sao Paulo U., Brazil" ], [ "Grassi", "F.", "", "Sao Paulo U., Brazil" ], [ "Hama", "Y.", "", "Sao Paulo U., Brazil" ], [ "Kodama", "T.", "", "Rio de Janeiro F.U., Brazil" ], [ "Qian", "W. L.", "...
We show effects of granular structure of the initial conditions (IC) of hydrodynamic description of high-energy nucleus-nucleus collisions on some observables, especially on the elliptic-flow parameter v2. Such a structure enhances production of isotropically distributed high-pT particles, making v2 smaller there. Also...
1506.05580
Francois Gelis
Thomas Epelbaum, Francois Gelis, Sangyong Jeon, Guy Moore, Bin Wu
Kinetic theory of a longitudinally expanding system of scalar particles
26 figures, 47 pages
null
10.1007/JHEP09(2015)117
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A simple kinematical argument suggests that the classical approximation may be inadequate to describe the evolution of a system with an anisotropic particle distribution. In order to verify this quantitatively, we study the Boltzmann equation for a longitudinally expanding system of scalar particles interacting with ...
[ { "created": "Thu, 18 Jun 2015 08:24:30 GMT", "version": "v1" }, { "created": "Mon, 29 Jun 2015 14:11:07 GMT", "version": "v2" } ]
2015-10-28
[ [ "Epelbaum", "Thomas", "" ], [ "Gelis", "Francois", "" ], [ "Jeon", "Sangyong", "" ], [ "Moore", "Guy", "" ], [ "Wu", "Bin", "" ] ]
A simple kinematical argument suggests that the classical approximation may be inadequate to describe the evolution of a system with an anisotropic particle distribution. In order to verify this quantitatively, we study the Boltzmann equation for a longitudinally expanding system of scalar particles interacting with a ...
1801.09974
Marat Siddikov Ilfatovich
Ivan Schmidt, Marat Siddikov
Digluon contribution to $J/\psi$ production
10 pages, 8 figures
Journal of Physics G 46 065002 (2019)
10.1088/1361-6471/ab09ab
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we study the contribution of the double parton distributions of gluons to the charmonium production. Despite being suppressed in the heavy quark mass limit, numerically this contribution gives a sizeable correction to the leading order $k_{T}$ factorization result in LHC kinematics due to enhancement of...
[ { "created": "Tue, 30 Jan 2018 13:18:13 GMT", "version": "v1" }, { "created": "Wed, 7 Mar 2018 21:53:45 GMT", "version": "v2" } ]
2019-04-26
[ [ "Schmidt", "Ivan", "" ], [ "Siddikov", "Marat", "" ] ]
In this paper we study the contribution of the double parton distributions of gluons to the charmonium production. Despite being suppressed in the heavy quark mass limit, numerically this contribution gives a sizeable correction to the leading order $k_{T}$ factorization result in LHC kinematics due to enhancement of g...
2406.19735
Xiao Liang
Jun Jiang, Shi-Yuan Li, Xiao Liang, Yan-Rui Liu, Cong-Feng Qiao, Zong-Guo Si and Hao Yang
Pseudoscalar heavy quarkonium production in heavy ion ultraperipheral collision
16 pages, 1 figures, 4 tables
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The inclusive production of pseudoscalar heavy quarkoniua ($\eta_c,~\eta_b$ and $B_c$) via photon-photon fusion in heavy ion ultraperipheral collision (UPC) are calculated to QCD next-to-leading order in the framework of non-relativistic QCD (NRQCD). The total cross section of $\eta_c$ produced in Pb-Pb UPC is 194 $\...
[ { "created": "Fri, 28 Jun 2024 08:23:50 GMT", "version": "v1" } ]
2024-07-01
[ [ "Jiang", "Jun", "" ], [ "Li", "Shi-Yuan", "" ], [ "Liang", "Xiao", "" ], [ "Liu", "Yan-Rui", "" ], [ "Qiao", "Cong-Feng", "" ], [ "Si", "Zong-Guo", "" ], [ "Yang", "Hao", "" ] ]
The inclusive production of pseudoscalar heavy quarkoniua ($\eta_c,~\eta_b$ and $B_c$) via photon-photon fusion in heavy ion ultraperipheral collision (UPC) are calculated to QCD next-to-leading order in the framework of non-relativistic QCD (NRQCD). The total cross section of $\eta_c$ produced in Pb-Pb UPC is 194 $\ma...
2406.05770
Kechen Wang
Ye Lu, Ying-nan Mao, Kechen Wang and Zeren Simon Wang
LAYCAST: LAYered CAvern Surface Tracker at future electron-positron colliders
23 pages, 19 figures, 1 table
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a detector concept, LAYered CAvern Surface Tracker (LAYCAST), to be installed on the ceiling and the wall of the cavern hosting the main experiment of future electron-positron colliders such as CEPC and FCC-ee. With detailed and realistic considerations of the design of such a new experiment, the proposed ...
[ { "created": "Sun, 9 Jun 2024 13:00:49 GMT", "version": "v1" } ]
2024-06-11
[ [ "Lu", "Ye", "" ], [ "Mao", "Ying-nan", "" ], [ "Wang", "Kechen", "" ], [ "Wang", "Zeren Simon", "" ] ]
We propose a detector concept, LAYered CAvern Surface Tracker (LAYCAST), to be installed on the ceiling and the wall of the cavern hosting the main experiment of future electron-positron colliders such as CEPC and FCC-ee. With detailed and realistic considerations of the design of such a new experiment, the proposed de...
hep-ph/0307089
Thomas D. COhen
Thomas D . Cohen
Functional integrals for QCD at nonzero chemical potential and zero density
4 pages; typos corrected
Phys.Rev.Lett. 91 (2003) 222001
10.1103/PhysRevLett.91.222001
DOE/ER/40762-287; UMDPP 03-058
hep-ph hep-lat hep-th nucl-th
null
In a Euclidean space functional integral treatment of the free energy of QCD, a chemical potential enters only through the functional determinant of the Dirac operator which for any flavor is $\dslash + m - \mu_f \gamma_0$ (where $\mu_f$ is the chemical potential for the given flavor). Any nonzero $\mu$ alters all of...
[ { "created": "Mon, 7 Jul 2003 15:13:40 GMT", "version": "v1" }, { "created": "Tue, 15 Jul 2003 19:58:23 GMT", "version": "v2" }, { "created": "Wed, 16 Jul 2003 19:30:12 GMT", "version": "v3" }, { "created": "Wed, 8 Oct 2003 13:48:48 GMT", "version": "v4" } ]
2009-11-10
[ [ "Cohen", "Thomas D .", "" ] ]
In a Euclidean space functional integral treatment of the free energy of QCD, a chemical potential enters only through the functional determinant of the Dirac operator which for any flavor is $\dslash + m - \mu_f \gamma_0$ (where $\mu_f$ is the chemical potential for the given flavor). Any nonzero $\mu$ alters all of t...
hep-ph/0702015
BingAn Li
Bing An Li
Pion form factor at very large $Q^2$
8 pages
null
null
null
hep-ph
null
The pion form factor at very large $Q^2$ is obtained by using a new pion wave function. It shows that when $Q^2>>(1.8GeV)^2$ the pion form factor reaches the asymptotic limit ${\alpha_s(Q^2)\over Q^2}$
[ { "created": "Thu, 1 Feb 2007 15:37:13 GMT", "version": "v1" } ]
2007-05-23
[ [ "Li", "Bing An", "" ] ]
The pion form factor at very large $Q^2$ is obtained by using a new pion wave function. It shows that when $Q^2>>(1.8GeV)^2$ the pion form factor reaches the asymptotic limit ${\alpha_s(Q^2)\over Q^2}$
0710.0726
Lorenzo Calibbi
L. Calibbi, R. Godbole, Y. Mambrini, S. K. Vempati
Distinguishing SUSY scenarios using \tau polarisation and \tilde\chi^0_1 Dark Matter
5 pages, 4 figures. Talk given by R. Godbole at the LCWS/ILC 2007 workshop at DESY, Hamburg, Germany. Version submitted to the Proceedings plus acknowledgements
ECONF C0705302:SUS19,2007
null
null
hep-ph
null
We discuss first a method of measuring $\tau$ polarisation at the ILC using the 1--prong hadronic decays of the $\tau$. We then show in this contribution how a study of the $\tilde \tau$ sector and particularly use of decay $\tau$ polarisation can offer a very good handle for distinguishing between mSUGRA and a SUSY-...
[ { "created": "Wed, 3 Oct 2007 18:50:31 GMT", "version": "v1" } ]
2009-02-16
[ [ "Calibbi", "L.", "" ], [ "Godbole", "R.", "" ], [ "Mambrini", "Y.", "" ], [ "Vempati", "S. K.", "" ] ]
We discuss first a method of measuring $\tau$ polarisation at the ILC using the 1--prong hadronic decays of the $\tau$. We then show in this contribution how a study of the $\tilde \tau$ sector and particularly use of decay $\tau$ polarisation can offer a very good handle for distinguishing between mSUGRA and a SUSY-GU...
hep-ph/9711461
Paolo Gondolo
Paolo Gondolo, Joakim Edsjo
Neutralino relic density including coannihilations
Talk given at TAUP97. 4 pages, 4 postscript figures, uses espcrc2.sty
Nucl.Phys.Proc.Suppl. 70 (1999) 120-122
10.1016/S0920-5632(98)00401-0
MPI-PhT/97-78
hep-ph
null
We give an overview of our precise calculation of the relic density of the lightest neutralino, in which we included relativistic Boltzmann averaging, subthreshold and resonant annihilations, and coannihilation processes with charginos and neutralinos.
[ { "created": "Tue, 25 Nov 1997 12:57:40 GMT", "version": "v1" } ]
2015-06-25
[ [ "Gondolo", "Paolo", "" ], [ "Edsjo", "Joakim", "" ] ]
We give an overview of our precise calculation of the relic density of the lightest neutralino, in which we included relativistic Boltzmann averaging, subthreshold and resonant annihilations, and coannihilation processes with charginos and neutralinos.
1806.10907
Berndt Muller
Berndt M\"uller and Andreas Sch\"afer
The Chiral Magnetic Effect and an experimental bound on the late time magnetic field strength
null
Phys. Rev. D 98, 071902 (2018)
10.1103/PhysRevD.98.071902
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We first compare different approaches to estimates of the magnitude of the chiral magnetic effect in relativistic heavy ion collisions and show that their main difference lies in the assumptions on the length of persistence of the magnetic field generated by the colliding nuclei. We then analyze recent measurements o...
[ { "created": "Thu, 28 Jun 2018 12:11:46 GMT", "version": "v1" }, { "created": "Sun, 26 Aug 2018 17:19:13 GMT", "version": "v2" } ]
2018-11-07
[ [ "Müller", "Berndt", "" ], [ "Schäfer", "Andreas", "" ] ]
We first compare different approaches to estimates of the magnitude of the chiral magnetic effect in relativistic heavy ion collisions and show that their main difference lies in the assumptions on the length of persistence of the magnetic field generated by the colliding nuclei. We then analyze recent measurements of ...
0811.2410
Magno Machado
M.V.T. Machado
Exclusive photoproduction of dileptons at high energies
5 pages, 1 figure and 1 table. Contribution to the proceedings of XXXVIII International Symposium on Multiparticle Dynamics (ISMD2008). Hamburg, Germany, 15-20 September 2008
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The exclusive photoproduction of lepton pairs on nucleon and nucleus target is investigated within the high energy color dipole approach, where the main physical quantity is the dipole-target elastic scattering amplitude that captures the main features of the dependence on atomic number A, on energy and on momentum t...
[ { "created": "Fri, 14 Nov 2008 19:45:32 GMT", "version": "v1" } ]
2008-11-17
[ [ "Machado", "M. V. T.", "" ] ]
The exclusive photoproduction of lepton pairs on nucleon and nucleus target is investigated within the high energy color dipole approach, where the main physical quantity is the dipole-target elastic scattering amplitude that captures the main features of the dependence on atomic number A, on energy and on momentum tra...
2110.05599
Shu Tian Eu
Shu Tian Eu, Lisa L. Everett, Todd Garon and Neil Leonard
Flavored Gauge-Mediated Supersymmetry Breaking Models with Discrete Non-Abelian Symmetries
32 pages, 8 figures
Phys. Rev. D 105, 055019, 2022
10.1103/PhysRevD.105.055019
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate flavored gauge mediation models in which the Higgs and messenger doublets are embedded in multiplets of the discrete non-Abelian symmetry S3. In these theories, the S3 symmetry correlates the flavor structure of the quark and lepton Yukawa couplings with the structure of the messenger Yukawa couplings ...
[ { "created": "Mon, 11 Oct 2021 20:33:44 GMT", "version": "v1" }, { "created": "Tue, 29 Mar 2022 21:16:05 GMT", "version": "v2" } ]
2022-03-31
[ [ "Eu", "Shu Tian", "" ], [ "Everett", "Lisa L.", "" ], [ "Garon", "Todd", "" ], [ "Leonard", "Neil", "" ] ]
We investigate flavored gauge mediation models in which the Higgs and messenger doublets are embedded in multiplets of the discrete non-Abelian symmetry S3. In these theories, the S3 symmetry correlates the flavor structure of the quark and lepton Yukawa couplings with the structure of the messenger Yukawa couplings th...
2207.05103
Jennet Dickinson
Jennet Dickinson, Samuel Bein, Sven Heinemeyer, Joshua Hiltbrand, Jim Hirschauer, Walter Hopkins, Elliot Lipeles, Malte Mrowietz, Nadja Strobbe
A Grand Scan of the pMSSM Parameter Space for Snowmass 2021
null
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a flexible framework for interpretation of SUSY sensitivity studies for future colliders in terms of the phenomenological minimal supersymmetric standard model (pMSSM). We perform a grand scan of the pMSSM 19-dimensional parameter space that covers the accessible ranges of many collider scenarios, includin...
[ { "created": "Mon, 11 Jul 2022 18:00:05 GMT", "version": "v1" }, { "created": "Thu, 4 Aug 2022 22:24:41 GMT", "version": "v2" } ]
2022-08-08
[ [ "Dickinson", "Jennet", "" ], [ "Bein", "Samuel", "" ], [ "Heinemeyer", "Sven", "" ], [ "Hiltbrand", "Joshua", "" ], [ "Hirschauer", "Jim", "" ], [ "Hopkins", "Walter", "" ], [ "Lipeles", "Elliot", "" ], ...
We present a flexible framework for interpretation of SUSY sensitivity studies for future colliders in terms of the phenomenological minimal supersymmetric standard model (pMSSM). We perform a grand scan of the pMSSM 19-dimensional parameter space that covers the accessible ranges of many collider scenarios, including ...
hep-ph/9504288
Martin John Savage
John K. Elwood, Mark B. Wise and Martin J. Savage
K_L to \pi^+ \pi^- e^+ e^-
20 pages, 11 uuencoded figures included, uses harvmac, epsf and tables
Phys.Rev.D52:5095,1995; Erratum-ibid.D53:2855,1996; Phys.Rev.D53:2855,1996
10.1103/PhysRevD.52.5095 10.1103/PhysRevD.53.2855
CALT-68-1980, CMU-HEP 95-02
hep-ph
null
We calculate all of the form factors for the one-photon, $K_L \rightarrow \pi^+ \pi^- \gamma^* \rightarrow \pi^+ \pi^- e^+e^-$ contribution to the $K_L \rightarrow \pi^+ \pi^- e^+e^-$ decay amplitude at leading order in chiral perturbation theory. These form factors depend on one unknown constant that is a linear com...
[ { "created": "Tue, 11 Apr 1995 20:32:29 GMT", "version": "v1" } ]
2014-11-17
[ [ "Elwood", "John K.", "" ], [ "Wise", "Mark B.", "" ], [ "Savage", "Martin J.", "" ] ]
We calculate all of the form factors for the one-photon, $K_L \rightarrow \pi^+ \pi^- \gamma^* \rightarrow \pi^+ \pi^- e^+e^-$ contribution to the $K_L \rightarrow \pi^+ \pi^- e^+e^-$ decay amplitude at leading order in chiral perturbation theory. These form factors depend on one unknown constant that is a linear combi...
hep-ph/9802253
Ioannis Vergados
J. D. Vergados
Modulation effect in the differential rate for Supersymmetric Dark Matter detection
17 LATEX pages, 4 Tables, 4 PostScript Figures included. Phys. Rev. D, to be published
Phys.Rev.D58:103001,1998
10.1103/PhysRevD.58.103001
null
hep-ph
null
The modulation effect in the direct detection of supersymmetric Cold Dark Matter (CDM) particles is investigated. It is shown that, while normally the modulation effect in the total event rate is small, $\leq 5% $, in some special cases it becomes much larger. It also becomes more pronounced in the differential event...
[ { "created": "Thu, 5 Feb 1998 09:49:04 GMT", "version": "v1" } ]
2014-11-17
[ [ "Vergados", "J. D.", "" ] ]
The modulation effect in the direct detection of supersymmetric Cold Dark Matter (CDM) particles is investigated. It is shown that, while normally the modulation effect in the total event rate is small, $\leq 5% $, in some special cases it becomes much larger. It also becomes more pronounced in the differential event r...
hep-ph/9502365
Igor Kondrashuk
I.N. Kondrashuk
Minimization of the scalar Higgs potential in the Finite Supersymmetric Grand Unified Theory
Latex, 18 pages, 1 postscript figure (included at the end)
Int.J.Mod.Phys. A11 (1996) 989-1006
10.1142/S0217751X96000468
preprint JINR E2-95-63
hep-ph
null
Exact mathematical solution of the minimization conditions of scalar the Higgs potential of the Finite Supersymmetric Grand Unification Theory is proposed and extremal field configurations are found. Types of extrema are investigated and masses of the new Higgs particles arisen after electroweak symmetry breaking are...
[ { "created": "Wed, 22 Feb 1995 12:30:23 GMT", "version": "v1" }, { "created": "Thu, 23 Feb 1995 11:55:12 GMT", "version": "v2" } ]
2016-09-01
[ [ "Kondrashuk", "I. N.", "" ] ]
Exact mathematical solution of the minimization conditions of scalar the Higgs potential of the Finite Supersymmetric Grand Unification Theory is proposed and extremal field configurations are found. Types of extrema are investigated and masses of the new Higgs particles arisen after electroweak symmetry breaking are d...
1012.2168
Gilberto Ramalho
G. Ramalho and M.T. Pena
Extracting the Omega- electric quadrupole moment from lattice QCD data
To appear in Phys. Rev. D. Version with small modifications. 8 pages, 1 figure
Phys.Rev.D83:054011,2011
10.1103/PhysRevD.83.054011
null
hep-ph hep-ex hep-lat nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Omega- has an extremely long lifetime, and is the most stable of the baryons with spin 3/2. Therefore the Omega- magnetic moment is very accurately known. Nevertheless, its electric quadrupole moment was never measured, although estimates exist in different formalisms. In principle, lattice QCD simulations provid...
[ { "created": "Fri, 10 Dec 2010 03:26:18 GMT", "version": "v1" }, { "created": "Tue, 15 Feb 2011 18:06:08 GMT", "version": "v2" } ]
2011-03-22
[ [ "Ramalho", "G.", "" ], [ "Pena", "M. T.", "" ] ]
The Omega- has an extremely long lifetime, and is the most stable of the baryons with spin 3/2. Therefore the Omega- magnetic moment is very accurately known. Nevertheless, its electric quadrupole moment was never measured, although estimates exist in different formalisms. In principle, lattice QCD simulations provide ...
1305.0267
Marco Drewes
Marco Drewes, Jin U Kang
The Kinematics of Cosmic Reheating
39 pages, 17 figures. The present version of the article slightly deviates from the published version. It includes a number of small corrections, which we summarised in a published Corrigendum
Nuclear Physics B 875 (2013) 315-350 and Corrigendum Nucl. Phys. B 875 (2) (2013) 315-350
10.1016/j.nuclphysb.2013.07.009, 10.1016/j.nuclphysb.2014.09.008
TUM-HEP-886/13, CAS-KITPC/ITP-367
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the relaxation rate of a scalar field in a plasma of other scalars and fermions with gauge interactions using thermal quantum field theory. It yields the rate of cosmic reheating and thereby determines the temperature of the "hot big bang" in inflationary cosmology. The total rate originates from various...
[ { "created": "Wed, 1 May 2013 20:00:03 GMT", "version": "v1" }, { "created": "Wed, 21 Aug 2013 20:00:22 GMT", "version": "v2" }, { "created": "Fri, 17 Oct 2014 10:18:56 GMT", "version": "v3" } ]
2014-10-20
[ [ "Drewes", "Marco", "" ], [ "Kang", "Jin U", "" ] ]
We calculate the relaxation rate of a scalar field in a plasma of other scalars and fermions with gauge interactions using thermal quantum field theory. It yields the rate of cosmic reheating and thereby determines the temperature of the "hot big bang" in inflationary cosmology. The total rate originates from various p...
hep-ph/0507308
Jiaolin Xu
Jiao Lin Xu
Deducing Rest Masses of Quarks With a Three Step Quantization
25 pages, 1 figure
null
null
null
hep-ph
null
Using a three step quantization and phenomenological formulae, we can deduce the rest masses and intrinsic quantum numbers (I, S, C, B and Q) of quarks from only one unflavored elementary quark family $\epsilon$ with S = C = B = 0 in the vacuum. Then using sum laws, we can deduce the rest masses and intrinsic quantum...
[ { "created": "Wed, 27 Jul 2005 19:35:48 GMT", "version": "v1" }, { "created": "Wed, 3 Aug 2005 00:09:47 GMT", "version": "v2" } ]
2007-05-23
[ [ "Xu", "Jiao Lin", "" ] ]
Using a three step quantization and phenomenological formulae, we can deduce the rest masses and intrinsic quantum numbers (I, S, C, B and Q) of quarks from only one unflavored elementary quark family $\epsilon$ with S = C = B = 0 in the vacuum. Then using sum laws, we can deduce the rest masses and intrinsic quantum n...
0709.2134
Aysuhan Ozansoy
O. Cakir (Ankara Univ.), A. Ozansoy (Ankara Univ.)
Search for excited spin-3/2 and spin-1/2 leptons at linear colliders
20 pages, 8 figures, 5 tables
Phys.Rev.D77:035002,2008
10.1103/PhysRevD.77.035002
null
hep-ph
null
We study the single production of excited spin-3/2 and spin-1/2 leptons in future high energy $e^+e^-$ collisions. We calculate the production cross section and decay widths of excited spin-3/2 and spin-1/2 leptons according to their effective currents. We show that these possible new excited states can be probed up ...
[ { "created": "Thu, 13 Sep 2007 17:22:43 GMT", "version": "v1" } ]
2008-11-26
[ [ "Cakir", "O.", "", "Ankara Univ." ], [ "Ozansoy", "A.", "", "Ankara Univ." ] ]
We study the single production of excited spin-3/2 and spin-1/2 leptons in future high energy $e^+e^-$ collisions. We calculate the production cross section and decay widths of excited spin-3/2 and spin-1/2 leptons according to their effective currents. We show that these possible new excited states can be probed up to...
hep-ph/0406245
Sven Heinemeyer
S. Heinemeyer
Precision SUSY Physics
6 pages, invited talk at "Loops & Legs in Quantum Field Theory 2004", Zinnowitz, Germany, April 2004
null
10.1016/j.nuclphysbps.2004.09.053
CERN-PH-TH/2004-115
hep-ph
null
We review the theoretical status and the future perspectives of the most important electroweak precision observables in the MSSM. This comprises the mass of the W boson, M_W, the effective leptonic mixing angle, sin^2(theta_eff), the mass of the lightest MSSM Higgs boson, m_h, and the anomalous magnetic moment of the...
[ { "created": "Tue, 22 Jun 2004 20:01:05 GMT", "version": "v1" } ]
2009-11-10
[ [ "Heinemeyer", "S.", "" ] ]
We review the theoretical status and the future perspectives of the most important electroweak precision observables in the MSSM. This comprises the mass of the W boson, M_W, the effective leptonic mixing angle, sin^2(theta_eff), the mass of the lightest MSSM Higgs boson, m_h, and the anomalous magnetic moment of the m...
0902.2760
Zvi Bern
C. F. Berger, Z. Bern, L. J. Dixon, F. Febres Cordero, D. Forde, T. Gleisberg, H. Ita, D. A. Kosower and D. Maitre
Precise Predictions for W + 3 Jet Production at Hadron Colliders
5 pages, 3 figures, RevTex, v3 small change in values, no changes in conclusions
Phys.Rev.Lett.102:222001,2009
10.1103/PhysRevLett.102.222001
SLAC-PUB-13539, UCLA/09/TEP/35, MIT-CTP 4013, Saclay-IPhT-T09/019, IPPP/09/08
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We report on the first next-to-leading order QCD computation of W + 3-jet production in hadronic collisions including all partonic subprocesses. We compare the results with CDF data from the Tevatron, and find excellent agreement. The renormalization and factorization scale dependence is reduced substantially compare...
[ { "created": "Mon, 16 Feb 2009 20:45:26 GMT", "version": "v1" }, { "created": "Fri, 27 Feb 2009 05:14:54 GMT", "version": "v2" }, { "created": "Sat, 11 Apr 2009 06:53:12 GMT", "version": "v3" } ]
2010-04-21
[ [ "Berger", "C. F.", "" ], [ "Bern", "Z.", "" ], [ "Dixon", "L. J.", "" ], [ "Cordero", "F. Febres", "" ], [ "Forde", "D.", "" ], [ "Gleisberg", "T.", "" ], [ "Ita", "H.", "" ], [ "Kosower", "D. A...
We report on the first next-to-leading order QCD computation of W + 3-jet production in hadronic collisions including all partonic subprocesses. We compare the results with CDF data from the Tevatron, and find excellent agreement. The renormalization and factorization scale dependence is reduced substantially compared ...
2402.02767
Masaki J.S. Yang
Masaki J.S. Yang
Chiral perturbative solution for the type-I seesaw mechanism in next-to-leading order
9 pages
null
null
STUPP-23-269
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this letter, we perform chiral perturbative diagonalization of the type-I seesaw mechanism by hierarchical singular values $\lambda_{i}$ of the Dirac mass matrix $m_{D}$ up to the next-to-leading order (NLO). Since the mass matrix of right-handed neutrinos $M_{R}$ has parity symmetries under $\lambda_{i} \leftrigh...
[ { "created": "Mon, 5 Feb 2024 06:59:01 GMT", "version": "v1" } ]
2024-02-06
[ [ "Yang", "Masaki J. S.", "" ] ]
In this letter, we perform chiral perturbative diagonalization of the type-I seesaw mechanism by hierarchical singular values $\lambda_{i}$ of the Dirac mass matrix $m_{D}$ up to the next-to-leading order (NLO). Since the mass matrix of right-handed neutrinos $M_{R}$ has parity symmetries under $\lambda_{i} \leftrighta...
1008.1995
Jan Uphoff
Jan Uphoff, Oliver Fochler, Zhe Xu, Carsten Greiner
Production, elliptic flow and energy loss of heavy quarks in the quark-gluon plasma
4 pages, 1 figure, to appear in the conference proceedings of Hot Quarks 2010, few minor modifications in 2nd version
J.Phys.Conf.Ser.270:012028,2010
10.1088/1742-6596/270/1/012028
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Production, elliptic flow and the nuclear modification factor of charm and bottom quarks are studied in central and non-central heavy-ion collisions at RHIC and LHC using the partonic transport model Boltzmann Approach of MultiParton Scatterings (BAMPS). Employing an initial heavy quark yield obtained with PYTHIA the...
[ { "created": "Wed, 11 Aug 2010 20:09:13 GMT", "version": "v1" }, { "created": "Wed, 10 Nov 2010 08:47:28 GMT", "version": "v2" } ]
2011-02-11
[ [ "Uphoff", "Jan", "" ], [ "Fochler", "Oliver", "" ], [ "Xu", "Zhe", "" ], [ "Greiner", "Carsten", "" ] ]
Production, elliptic flow and the nuclear modification factor of charm and bottom quarks are studied in central and non-central heavy-ion collisions at RHIC and LHC using the partonic transport model Boltzmann Approach of MultiParton Scatterings (BAMPS). Employing an initial heavy quark yield obtained with PYTHIA the f...
hep-ph/0110313
Gerhard Buchalla
Gerhard Buchalla (CERN)
Rare Kaon Decays - Overview
10 pages, 3 figures, Invited Talk at KAON 2001, Pisa
null
null
CERN-TH/2001-292
hep-ph
null
The theory of rare $K$ decays is reviewed, emphasizing short-distance processes and the prospects to probe the physics of flavour. A brief overview of the subject is presented, along with a more detailed discussion of the theory of $K\to\pi\nu\bar\nu$ decays.
[ { "created": "Wed, 24 Oct 2001 15:24:10 GMT", "version": "v1" } ]
2007-05-23
[ [ "Buchalla", "Gerhard", "", "CERN" ] ]
The theory of rare $K$ decays is reviewed, emphasizing short-distance processes and the prospects to probe the physics of flavour. A brief overview of the subject is presented, along with a more detailed discussion of the theory of $K\to\pi\nu\bar\nu$ decays.
1809.00671
Niki Klop MSc
Niki Klop, Shin'ichiro Ando
Constraints on MeV dark matter using neutrino detectors and their implication for the 21-cm results
6 pages, 6 figures
Phys. Rev. D 98, 103004 (2018)
10.1103/PhysRevD.98.103004
null
hep-ph astro-ph.CO hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The recent results of the EDGES collaboration indicate that during the era of reionization, the primordial gas was much colder than expected. The cooling of the gas could be explained by interactions between dark matter (DM) and particles in the primordial gas. Constraints from cosmology and particle experiments indi...
[ { "created": "Mon, 3 Sep 2018 18:00:00 GMT", "version": "v1" } ]
2018-11-14
[ [ "Klop", "Niki", "" ], [ "Ando", "Shin'ichiro", "" ] ]
The recent results of the EDGES collaboration indicate that during the era of reionization, the primordial gas was much colder than expected. The cooling of the gas could be explained by interactions between dark matter (DM) and particles in the primordial gas. Constraints from cosmology and particle experiments indica...
2104.08640
Oleg Boyarkin
G.G.Boyarkina, O.M.Boyarkin
The $(g-2)_{\mu}$ anomaly, Higgs bosons and heavy neutrinos
null
Phys. Rev D 67 (2003) 073023
10.1103/PhysRevD.67.073023
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Within the model based on the $SU (2)_L\times SU (2)_R\times U (1)_{B-L} $ gauge group and having the bidoublet and two triplets of the Higgs fields (left-right model) the Higgs sector impact on the value of the muon anomalous magnetic moment is considered. The contributions coming from the doubly charged Higgs boson...
[ { "created": "Sat, 17 Apr 2021 20:31:01 GMT", "version": "v1" } ]
2021-04-28
[ [ "Boyarkina", "G. G.", "" ], [ "Boyarkin", "O. M.", "" ] ]
Within the model based on the $SU (2)_L\times SU (2)_R\times U (1)_{B-L} $ gauge group and having the bidoublet and two triplets of the Higgs fields (left-right model) the Higgs sector impact on the value of the muon anomalous magnetic moment is considered. The contributions coming from the doubly charged Higgs bosons,...
1703.05733
Durmus Demir
Durmus Demir
Naturalizing Gravity of the Quantum Fields, and the Hierarchy Problem
27 pages, 2 tables
null
null
IZTECH-HEP-03/2017
hep-ph gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is shown that gravity can be incorporated into the Standard Model (SM) in a way solving the hierarchy problem. For this, the SM effective action in flat spacetime is adapted to curved spacetime via not only the general covariance but also the gauge invariance. For the latter, gauge field hard masses, induced by lo...
[ { "created": "Fri, 10 Mar 2017 13:27:31 GMT", "version": "v1" } ]
2017-03-17
[ [ "Demir", "Durmus", "" ] ]
It is shown that gravity can be incorporated into the Standard Model (SM) in a way solving the hierarchy problem. For this, the SM effective action in flat spacetime is adapted to curved spacetime via not only the general covariance but also the gauge invariance. For the latter, gauge field hard masses, induced by loop...
2105.09370
Rafal Maciula
Rafal Maciula and Antoni Szczurek
Impact of the LHCb $p\!+\!\!^{4}\!H\!e$ fixed-target $D^0/\bar{D^0}$ data on the intrinisic $c \bar c$ component in the nucleon
28 pages, 20 figures
null
10.1103/PhysRevD.105.014001
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We discuss the impact of the new LHCb fixed-target $p\!+\!^{4}\!He$ data for $D^0/{\bar D}^0$ production on the intrinsic $c \bar c$ component in the nucleon wave function. Within the scenario presented here neither the traditional gluon-gluon fusion or quark-antiquark annihilation mechanisms calculated in the $k_T$-...
[ { "created": "Wed, 19 May 2021 19:24:42 GMT", "version": "v1" }, { "created": "Tue, 8 Feb 2022 12:18:06 GMT", "version": "v2" } ]
2022-02-09
[ [ "Maciula", "Rafal", "" ], [ "Szczurek", "Antoni", "" ] ]
We discuss the impact of the new LHCb fixed-target $p\!+\!^{4}\!He$ data for $D^0/{\bar D}^0$ production on the intrinsic $c \bar c$ component in the nucleon wave function. Within the scenario presented here neither the traditional gluon-gluon fusion or quark-antiquark annihilation mechanisms calculated in the $k_T$-fa...
hep-ph/0212342
Andreas Ringwald
A. Ringwald (DESY)
Production of Black Holes in TeV-Scale Gravity
8 pages, 10 figures, fortschritte.sty (included); talk presented at the 35th International Symposium Ahrenshoop on the Theory of Elementary Particles, Aug. 26-30, 2002, Berlin-Schmoeckwitz, Germany
Fortsch.Phys. 51 (2003) 830-835
10.1002/prop.200310104
DESY 02-159
hep-ph
null
Copious production of microscopic black holes is one of the least model-dependent predictions of TeV-scale gravity scenarios. We review the arguments behind this assertion and discuss opportunities to track the striking associated signatures in the near future. These include searches at neutrino telescopes, such as A...
[ { "created": "Mon, 23 Dec 2002 15:53:31 GMT", "version": "v1" } ]
2009-11-07
[ [ "Ringwald", "A.", "", "DESY" ] ]
Copious production of microscopic black holes is one of the least model-dependent predictions of TeV-scale gravity scenarios. We review the arguments behind this assertion and discuss opportunities to track the striking associated signatures in the near future. These include searches at neutrino telescopes, such as AMA...
2304.03302
Iain W. Stewart
Renaud Boussarie, Matthias Burkardt, Martha Constantinou, William Detmold, Markus Ebert, Michael Engelhardt, Sean Fleming, Leonard Gamberg, Xiangdong Ji, Zhong-Bo Kang, Christopher Lee, Keh-Fei Liu, Simonetta Liuti, Thomas Mehen (editor), Andreas Metz, John Negele, Daniel Pitonyak, Alexei Prokudin, Jian-Wei Qiu...
TMD Handbook
471 pages, many figures
null
null
JLAB-THY-23-3780, LA-UR-21-20798, MIT-CTP/5386
hep-ph hep-lat nucl-th
http://creativecommons.org/licenses/by-nc-nd/4.0/
This handbook provides a comprehensive review of transverse-momentum-dependent parton distribution functions and fragmentation functions, commonly referred to as transverse momentum distributions (TMDs). TMDs describe the distribution of partons inside the proton and other hadrons with respect to both their longitudi...
[ { "created": "Thu, 6 Apr 2023 18:00:00 GMT", "version": "v1" } ]
2023-04-10
[ [ "Boussarie", "Renaud", "", "editor" ], [ "Burkardt", "Matthias", "", "editor" ], [ "Constantinou", "Martha", "", "editor" ], [ "Detmold", "William", "", "editor" ], [ "Ebert", "Markus", "", "editor" ], [ "Engel...
This handbook provides a comprehensive review of transverse-momentum-dependent parton distribution functions and fragmentation functions, commonly referred to as transverse momentum distributions (TMDs). TMDs describe the distribution of partons inside the proton and other hadrons with respect to both their longitudina...
hep-ph/0401018
Fugao Wang
Jiao Lin Xu
A Proposal About the Confinement of Quarks
9 pages
null
null
null
hep-ph
null
From the Dirac sea concept and the Quark Model, we infer a phenomenological accompanying excitation concept. This concept will give an explanation for the confinement of quarks.
[ { "created": "Tue, 6 Jan 2004 08:32:38 GMT", "version": "v1" }, { "created": "Wed, 14 Jan 2004 18:43:10 GMT", "version": "v2" } ]
2007-05-23
[ [ "Xu", "Jiao Lin", "" ] ]
From the Dirac sea concept and the Quark Model, we infer a phenomenological accompanying excitation concept. This concept will give an explanation for the confinement of quarks.
0903.5081
Stephen D. Ellis
Stephen D. Ellis, Christopher K. Vermilion and Jonathan R. Walsh
Techniques for improved heavy particle searches with jet substructure
4 pages, 3 figures; 5 pages, provide definition of h_T, correct description of making cells massless; IR safe definition for parameter D_cut, more complete references, comparisons to matched QCD jet samples, slightly changed figures; correct references;
Phys.Rev.D80:051501,2009
10.1103/PhysRevD.80.051501
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a generic method for improving the effectiveness of heavy particle searches in hadronic channels at the Large Hadron Collider. By selectively removing, or pruning, protojets from the substructure provided by a k_T-style jet algorithm, we improve the mass resolution for heavy decays and decrease the QCD bac...
[ { "created": "Sun, 29 Mar 2009 19:08:12 GMT", "version": "v1" }, { "created": "Mon, 11 May 2009 21:43:13 GMT", "version": "v2" }, { "created": "Mon, 3 Aug 2009 15:14:43 GMT", "version": "v3" }, { "created": "Tue, 11 Aug 2009 18:21:12 GMT", "version": "v4" } ]
2009-11-06
[ [ "Ellis", "Stephen D.", "" ], [ "Vermilion", "Christopher K.", "" ], [ "Walsh", "Jonathan R.", "" ] ]
We present a generic method for improving the effectiveness of heavy particle searches in hadronic channels at the Large Hadron Collider. By selectively removing, or pruning, protojets from the substructure provided by a k_T-style jet algorithm, we improve the mass resolution for heavy decays and decrease the QCD backg...
hep-ph/0410055
Giulia Zanderighi
Giulia Zanderighi
Resummed event shapes at hadron colliders
7 pages, Talk given at the XXXIV International Symposium on Multiparticle Dynamics, Sonoma, July 26 - August 1, 2004
Acta Phys.Polon. B36 (2005) 381-388
null
null
hep-ph
null
We present recently defined jet-observables for hadron-hadron dijet production, which are designed to reconcile the seemingly conflicting theoretical requirement of globalness, which makes it possible to resum them (automatically) at NLL accuracy and the limited experimental reach of detectors, so that they are measu...
[ { "created": "Mon, 4 Oct 2004 14:48:45 GMT", "version": "v1" } ]
2007-05-23
[ [ "Zanderighi", "Giulia", "" ] ]
We present recently defined jet-observables for hadron-hadron dijet production, which are designed to reconcile the seemingly conflicting theoretical requirement of globalness, which makes it possible to resum them (automatically) at NLL accuracy and the limited experimental reach of detectors, so that they are measura...
hep-ph/9809596
Ferruccio Feruglio
Guido Altarelli and Ferruccio Feruglio
Models of Neutrino Masses from Oscillations with Maximal Mixing
10 pages, LATEX, no figures; references added; minor changes to clarify the U(1) example
JHEP 9811:021,1998
10.1088/1126-6708/1998/11/021
CERN-TH/98-310, DFPD-98/TH/46
hep-ph
null
We discuss models of neutrino masses that lead to a large mixing angle for atmospheric neutrino oscillations. In particular we study a mechanism where a simple texture for the Dirac matrix leads to the observed pattern of mixings for a continuous range of Majorana matrices in a reasonably natural way. Both nearly max...
[ { "created": "Wed, 30 Sep 1998 16:28:35 GMT", "version": "v1" }, { "created": "Fri, 16 Oct 1998 16:02:40 GMT", "version": "v2" } ]
2010-02-03
[ [ "Altarelli", "Guido", "" ], [ "Feruglio", "Ferruccio", "" ] ]
We discuss models of neutrino masses that lead to a large mixing angle for atmospheric neutrino oscillations. In particular we study a mechanism where a simple texture for the Dirac matrix leads to the observed pattern of mixings for a continuous range of Majorana matrices in a reasonably natural way. Both nearly maxim...
hep-ph/9704242
P. G. Tinyakov
A. N. Kuznetsov, P. G. Tinyakov
Periodic Instanton Bifurcations and Thermal Transition Rate
11 pages, LaTeX, axodraw.sty
Phys.Lett. B406 (1997) 76-82
10.1016/S0370-2693(97)00628-X
INR-TH-97/018
hep-ph
null
It is shown that periodic instanton solutions may have bifurcations which qualitatively change the behaviour of the finite temperature transition rate. These bifurcations are studied numerically in a quantum mechanical model and in the massive two-dimensional sigma model with the Skyrme term. General rules which dete...
[ { "created": "Fri, 4 Apr 1997 17:44:27 GMT", "version": "v1" } ]
2009-10-30
[ [ "Kuznetsov", "A. N.", "" ], [ "Tinyakov", "P. G.", "" ] ]
It is shown that periodic instanton solutions may have bifurcations which qualitatively change the behaviour of the finite temperature transition rate. These bifurcations are studied numerically in a quantum mechanical model and in the massive two-dimensional sigma model with the Skyrme term. General rules which determ...
0904.3338
Feng-Kun Guo
Feng-Kun Guo, Christoph Hanhart, Ulf-G. Mei{\ss}ner
Implications of heavy quark spin symmetry on heavy meson hadronic molecules
4 pages, 2 figures
Phys.Rev.Lett.102:242004,2009
10.1103/PhysRevLett.102.242004
FZJ-IKP-TH-2009-13, HISKP-TH-09/16
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In recent years, many heavy mesons and charmonia were observed which do not fit in the conventional quark model expectations. Some of them are proposed to be hadronic molecules. Here we investigate the consequences of heavy quark spin symmetry on these heavy meson hadronic molecules. Heavy quark spin symmetry enables...
[ { "created": "Tue, 21 Apr 2009 20:25:35 GMT", "version": "v1" } ]
2009-06-19
[ [ "Guo", "Feng-Kun", "" ], [ "Hanhart", "Christoph", "" ], [ "Meißner", "Ulf-G.", "" ] ]
In recent years, many heavy mesons and charmonia were observed which do not fit in the conventional quark model expectations. Some of them are proposed to be hadronic molecules. Here we investigate the consequences of heavy quark spin symmetry on these heavy meson hadronic molecules. Heavy quark spin symmetry enables u...
2309.15106
Aleksandr Pustyntsev
Aleksandr Pustyntsev, Marc Vanderhaeghen
Improved constraints for axion-like particles from 3-photon events at $e^+e^-$ colliders
null
Eur. Phys. J. C 84, 546 (2024)
10.1140/epjc/s10052-024-12913-4
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Axions and axion-like particles (ALPs) are one of the most widely discussed extensions of the Standard Model when it comes to the strong CP problem and dark matter candidates. Current experiments are focused on the indirect searches of invisible pseudoscalars in a wide parameter range. In this paper we investigate li...
[ { "created": "Tue, 26 Sep 2023 17:54:38 GMT", "version": "v1" }, { "created": "Mon, 10 Jun 2024 22:40:18 GMT", "version": "v2" } ]
2024-06-12
[ [ "Pustyntsev", "Aleksandr", "" ], [ "Vanderhaeghen", "Marc", "" ] ]
Axions and axion-like particles (ALPs) are one of the most widely discussed extensions of the Standard Model when it comes to the strong CP problem and dark matter candidates. Current experiments are focused on the indirect searches of invisible pseudoscalars in a wide parameter range. In this paper we investigate limi...
hep-ph/0302245
Ahmed Tounsi
K. Redlich (U. of Bielefeld & Wroclaw), F. Karsch (U. of Bielefeld), A. Tounsi (U. Paris 6 & Paris 7)
Group projection method in statistical systems
Invited talk presented at the XXIV International Colloquium on Group Theoritical Methods in Physics
null
null
null
hep-ph
null
We discuss an application of group theoretical methods to the formulation of the thermodynamics of systems constrained by the conservation laws described by a semi--simple compact Lie group. A general projection method that allows to construct a partition function for a given irreducible representation of the Lie gro...
[ { "created": "Wed, 26 Feb 2003 16:38:25 GMT", "version": "v1" } ]
2007-05-23
[ [ "Redlich", "K.", "", "U. of Bielefeld & Wroclaw" ], [ "Karsch", "F.", "", "U. of Bielefeld" ], [ "Tounsi", "A.", "", "U. Paris 6 & Paris 7" ] ]
We discuss an application of group theoretical methods to the formulation of the thermodynamics of systems constrained by the conservation laws described by a semi--simple compact Lie group. A general projection method that allows to construct a partition function for a given irreducible representation of the Lie group...
hep-ph/0209215
Alejandro Cabo
Alejandro Cabo
Quark masses from quark-gluon condensates in a modified perturbative QCD
11 pages, 2 figures
JHEP 0304 (2003) 044
10.1088/1126-6708/2003/04/044
CERN-TH/2002-241
hep-ph
null
In this note, it is argued that the mass matrix for the six quarks can be generated in first approximation by introducing fermion condensates on the same lines as was done before for gluons, within the modified perturbative expansion for QCD proposed in former works. Thus, the results point in the direction of the co...
[ { "created": "Thu, 19 Sep 2002 08:01:29 GMT", "version": "v1" } ]
2009-11-07
[ [ "Cabo", "Alejandro", "" ] ]
In this note, it is argued that the mass matrix for the six quarks can be generated in first approximation by introducing fermion condensates on the same lines as was done before for gluons, within the modified perturbative expansion for QCD proposed in former works. Thus, the results point in the direction of the conj...