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1701.01398
Rico Z\"ollner
Rico Z\"ollner, Burkhard Kampfer
Extended soft wall model with background related to features of QCD thermodynamics
null
Eur. Phys. J. A 53, 139 (2017)
10.1140/epja/i2017-12328-0
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The soft wall model is extended to accommodate at the same time (i) approximately linear $\rho$ meson Regge trajectories at zero temperature $T$, (ii) various options for the thermodynamics with reference to QCD (cross over or second-order transition or first-order transition at $T_c$), and (iii) the appearance of ve...
[ { "created": "Thu, 5 Jan 2017 17:49:17 GMT", "version": "v1" }, { "created": "Sat, 14 Jan 2017 17:01:35 GMT", "version": "v2" } ]
2017-08-16
[ [ "Zöllner", "Rico", "" ], [ "Kampfer", "Burkhard", "" ] ]
The soft wall model is extended to accommodate at the same time (i) approximately linear $\rho$ meson Regge trajectories at zero temperature $T$, (ii) various options for the thermodynamics with reference to QCD (cross over or second-order transition or first-order transition at $T_c$), and (iii) the appearance of vect...
1902.08977
Cen Zhang
Qi Bi, Cen Zhang, Shuang-Yong Zhou
Positivity constraints on aQGC: carving out the physical parameter space
54 pages, 27 figures
null
10.1007/JHEP06(2019)137
USTC-ICTS-19-01
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Searching for deviations in quartic gauge boson couplings (QGCs) is one of the main goals of the electroweak program at the LHC. We consider positivity bounds adapted to the Standard Model, and show that a set of positivity constraints on 18 anomalous QGC couplings can be derived, by requiring that the vector boson s...
[ { "created": "Sun, 24 Feb 2019 16:50:52 GMT", "version": "v1" } ]
2022-10-12
[ [ "Bi", "Qi", "" ], [ "Zhang", "Cen", "" ], [ "Zhou", "Shuang-Yong", "" ] ]
Searching for deviations in quartic gauge boson couplings (QGCs) is one of the main goals of the electroweak program at the LHC. We consider positivity bounds adapted to the Standard Model, and show that a set of positivity constraints on 18 anomalous QGC couplings can be derived, by requiring that the vector boson sca...
1605.07962
Suchita Kulkarni Ms.
Mihailo Backovi\'c, Suchita Kulkarni, Alberto Mariotti, Enrico Maria Sessolo, Michael Spannowsky
Cornering diphoton resonance models at the LHC
21 pages, 4 figures
null
10.1007/JHEP08(2016)018
IPPP/16/46, DCPT/16/92,CP3-16-23, HEPHY-PUB 967/16
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore the ability of the high luminosity LHC to test models which can explain the 750 GeV diphoton excess. We focus on a wide class of models where a 750 GeV singlet scalar couples to Standard Model gauge bosons and quarks, as well as dark matter. Including both gluon and photon fusion production mechanisms, we ...
[ { "created": "Wed, 25 May 2016 16:55:10 GMT", "version": "v1" } ]
2016-08-24
[ [ "Backović", "Mihailo", "" ], [ "Kulkarni", "Suchita", "" ], [ "Mariotti", "Alberto", "" ], [ "Sessolo", "Enrico Maria", "" ], [ "Spannowsky", "Michael", "" ] ]
We explore the ability of the high luminosity LHC to test models which can explain the 750 GeV diphoton excess. We focus on a wide class of models where a 750 GeV singlet scalar couples to Standard Model gauge bosons and quarks, as well as dark matter. Including both gluon and photon fusion production mechanisms, we sh...
hep-ph/9507240
Adrian Ghinculov
Adrian Ghinculov
Two--loop heavy Higgs correction to Higgs decay into vector bosons
to appear in Nucl. Phys. B
Nucl.Phys. B455 (1995) 21-38
null
Freiburg-THEP 95/11
hep-ph
null
The leading $m_H$ radiative correction to the Higgs decay width into a pair of weak vector bosons is calculated at the two--loop level, using the equivalence theorem in Landau gauge. The result indicates the breakdown of perturbation theory if the Higgs boson is heavier than $\sim 930$ GeV, in spite of the smallness ...
[ { "created": "Wed, 5 Jul 1995 22:19:36 GMT", "version": "v1" }, { "created": "Mon, 2 Oct 1995 10:04:50 GMT", "version": "v2" } ]
2008-02-03
[ [ "Ghinculov", "Adrian", "" ] ]
The leading $m_H$ radiative correction to the Higgs decay width into a pair of weak vector bosons is calculated at the two--loop level, using the equivalence theorem in Landau gauge. The result indicates the breakdown of perturbation theory if the Higgs boson is heavier than $\sim 930$ GeV, in spite of the smallness of...
hep-ph/0306150
Amir H. Fatollahi
Amir H. Fatollahi
Strings In Baryons And Matrix Coordinates
10 pages, LaTeX format, no figure
Mod.Phys.Lett. A19 (2004) 1577-1584
10.1142/S0217732304013854
null
hep-ph hep-lat hep-th nucl-ex nucl-th
null
It is argued that the internal dynamics of a baryon, as a bound state of QCD-strings and quarks, may be captured by a theory of matrix coordinates.
[ { "created": "Tue, 17 Jun 2003 08:44:29 GMT", "version": "v1" } ]
2009-11-10
[ [ "Fatollahi", "Amir H.", "" ] ]
It is argued that the internal dynamics of a baryon, as a bound state of QCD-strings and quarks, may be captured by a theory of matrix coordinates.
0901.4883
Nishita Desai
Nishita Desai, Biswarup Mukhopadhyaya (Harish-Chandra Research Institute)
Signals of supersymmetry with inaccessible first two families at the Large Hadron Collider
v3: 17 pages, 8 figures, 7 tables
Phys.Rev.D80:055019,2009
10.1103/PhysRevD.80.055019
HRI-RECAPP-2009-002
hep-ph
http://creativecommons.org/licenses/by-nc-sa/3.0/
We investigate the signals of supersymmetry (SUSY) in a scenario where only the third family squarks and sleptons can be produced at the Large Hadron Collider (LHC), in addition to the gluino, charginos and neutralinos. The final states in such cases are marked by a multiplicity of top and/or bottom quarks. We study ...
[ { "created": "Fri, 30 Jan 2009 13:51:50 GMT", "version": "v1" }, { "created": "Thu, 19 Feb 2009 16:29:27 GMT", "version": "v2" }, { "created": "Tue, 28 Jul 2009 10:12:53 GMT", "version": "v3" } ]
2009-10-20
[ [ "Desai", "Nishita", "", "Harish-Chandra Research\n Institute" ], [ "Mukhopadhyaya", "Biswarup", "", "Harish-Chandra Research\n Institute" ] ]
We investigate the signals of supersymmetry (SUSY) in a scenario where only the third family squarks and sleptons can be produced at the Large Hadron Collider (LHC), in addition to the gluino, charginos and neutralinos. The final states in such cases are marked by a multiplicity of top and/or bottom quarks. We study in...
2307.13458
Sergey Mikhailov
S. V. Mikhailov and N. Volchanskiy
Endpoint behavior of distribution amplitudes of pion and longitudinally polarized rho meson under the influence of renormalon-chain contributions
9 pages, 15 figures, corrected a few inaccuracies overall the text and Conclusion, rewritten Appendixes A, B
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the two-point massless QCD correlator of nonlocal (composite) vector quark currents with chains of fermion one-loop radiative corrections inserted into gluon lines. The correlator depends on the Bjorken fraction $x$ related to the composite current and, under large-$\beta_0$ approximation, gives the main...
[ { "created": "Tue, 25 Jul 2023 12:39:33 GMT", "version": "v1" }, { "created": "Tue, 7 Nov 2023 17:55:44 GMT", "version": "v2" } ]
2023-11-08
[ [ "Mikhailov", "S. V.", "" ], [ "Volchanskiy", "N.", "" ] ]
We calculate the two-point massless QCD correlator of nonlocal (composite) vector quark currents with chains of fermion one-loop radiative corrections inserted into gluon lines. The correlator depends on the Bjorken fraction $x$ related to the composite current and, under large-$\beta_0$ approximation, gives the main c...
0801.2244
Pranav Saxena
N.K. Sharma, Pranav Saxena (Rajasthan University), Prachi Parashar (Oklahoma University), Ashok K. Nagawat, Sardar Singh (Rajasthan University)
Low energy theorems and the unitarity bounds in the extra U(1) superstring inspired E6 models
57 Pages, 13 Tables, 7 Figs.; PACS: 12.10.Dm, 12.60.Cn; http://link.aps.org/abstract/PRD/v72/e095016
Phys.Rev.D72:095016,2005
10.1103/PhysRevD.72.095016
null
hep-ph
null
The conventional method using low energy theorems [3] does not seem to lead to an explicit unitarity limit in the scattering processes of longitudinally polarized gauge bosons for the high energy case in the extra U(1) superstring inspired models, commonly known as eta model, emanating from E6 group of superstring th...
[ { "created": "Tue, 15 Jan 2008 10:01:19 GMT", "version": "v1" } ]
2008-11-26
[ [ "Sharma", "N. K.", "", "Rajasthan University" ], [ "Saxena", "Pranav", "", "Rajasthan University" ], [ "Parashar", "Prachi", "", "Oklahoma University" ], [ "Nagawat", "Ashok K.", "", "Rajasthan University" ], [ "Singh", "Sarda...
The conventional method using low energy theorems [3] does not seem to lead to an explicit unitarity limit in the scattering processes of longitudinally polarized gauge bosons for the high energy case in the extra U(1) superstring inspired models, commonly known as eta model, emanating from E6 group of superstring theo...
hep-ph/9912549
Petre Golumbeanu
P. Golumbeanu and C. Rosenzweig
Escape of Superheated Upsilons from the Quark Gluon Plasma
10 pages, revised version, LATEX
null
null
null
hep-ph
null
The properties of heavy quark systems change if they are placed in a medium other than the low energy vacuum. In a hot Quark Gluon Plasma $J/\Psi$ particles will melt and not exist as resonant states. $\Upsilon$'s, however, because of their smaller size and the dominance of the Coulomb potential, will still form as $...
[ { "created": "Thu, 30 Dec 1999 21:43:01 GMT", "version": "v1" }, { "created": "Wed, 29 Mar 2000 23:15:33 GMT", "version": "v2" }, { "created": "Mon, 14 Aug 2000 14:45:58 GMT", "version": "v3" } ]
2007-05-23
[ [ "Golumbeanu", "P.", "" ], [ "Rosenzweig", "C.", "" ] ]
The properties of heavy quark systems change if they are placed in a medium other than the low energy vacuum. In a hot Quark Gluon Plasma $J/\Psi$ particles will melt and not exist as resonant states. $\Upsilon$'s, however, because of their smaller size and the dominance of the Coulomb potential, will still form as $Q\...
hep-ph/0009188
N. Nikolaev
N.N. Nikolaev (IKP FZJ and Landau Institute)
Diffractive Vector Mesons in DIS: Meson Structure and QCD
9 p., 5 fig., Invited talk at Meson-2000, Krakow, May 2000
Acta Phys.Polon. B31 (2000) 2485-2494
null
null
hep-ph
null
I review the modern status of QCD theory of diffractive vector meson production with the focus on shrinkage of photons with Q2 and (Q2+mV2)$scaling, j-plane properties of the QCD pomeron and Regge shrinkage of diffraction cone, $s$-channel helicity non-conservation and sensitivity to spin-orbital properties of vector...
[ { "created": "Fri, 15 Sep 2000 13:16:14 GMT", "version": "v1" } ]
2007-05-23
[ [ "Nikolaev", "N. N.", "", "IKP FZJ and Landau Institute" ] ]
I review the modern status of QCD theory of diffractive vector meson production with the focus on shrinkage of photons with Q2 and (Q2+mV2)$scaling, j-plane properties of the QCD pomeron and Regge shrinkage of diffraction cone, $s$-channel helicity non-conservation and sensitivity to spin-orbital properties of vector m...
hep-ph/9909503
Jaume Guasch
Jaume Guasch, Joan Sola
Top quark decays into neutral Higgs bosons and gluon in the MSSM
8 pages, Latex2e, 3 figures included. Updated talk presented in: International Workshop on Linear Colliders, Sitges, April 28-May 5, 1999; to appear in the proceedings
null
null
UAB-FT-473, KA-TP-15-1999
hep-ph
null
Flavour changing neutral decays of the top quark are know to be extremely suppressed in the SM. This is especially so for the top quark decay into the SM Higgs boson, whose rate is less than 10^-13. However, it turns out that the decay modes t->c h, with h= h^0,H^0,A^0 any of the MSSM neutral Higgs bosons, can be muc...
[ { "created": "Fri, 24 Sep 1999 10:37:14 GMT", "version": "v1" } ]
2007-05-23
[ [ "Guasch", "Jaume", "" ], [ "Sola", "Joan", "" ] ]
Flavour changing neutral decays of the top quark are know to be extremely suppressed in the SM. This is especially so for the top quark decay into the SM Higgs boson, whose rate is less than 10^-13. However, it turns out that the decay modes t->c h, with h= h^0,H^0,A^0 any of the MSSM neutral Higgs bosons, can be much ...
hep-ph/0210160
Namit Mahajan
S.R.Choudhury (a), G.C.Joshi (b), Namit Mahajan (a) and B.H.J.McKellar (b) ((a)Univ. of Delhi, (b)Univ. of Melbourne)
Study of the Flavour Changing Neutral Current Decay mode $B\to K \gamma \gamma $
A sign error in the numerical program corrected, Results modified appropriately and figures redrawn
Phys.Rev.D67:074016,2003; Erratum-ibid.D72:119906,2005
10.1103/PhysRevD.67.074016 10.1103/PhysRevD.72.119906
null
hep-ph hep-ex
null
We study the neutral current flavour changing rare decay mode $B\to K \gamma \gamma $ within the framework of Standard Model, including the long distance contributions. It is found that these long distance contributions can larger than the short distance contribution.
[ { "created": "Thu, 10 Oct 2002 08:28:03 GMT", "version": "v1" }, { "created": "Wed, 23 Oct 2002 06:02:43 GMT", "version": "v2" }, { "created": "Wed, 23 Feb 2005 09:42:32 GMT", "version": "v3" } ]
2014-11-17
[ [ "Choudhury", "S. R.", "", "a" ], [ "Joshi", "G. C.", "", "b" ], [ "Mahajan", "Namit", "", "a" ], [ "McKellar", "B. H. J.", "", "b" ] ]
We study the neutral current flavour changing rare decay mode $B\to K \gamma \gamma $ within the framework of Standard Model, including the long distance contributions. It is found that these long distance contributions can larger than the short distance contribution.
1905.10217
Oleksandr Koshchii
Oleksandr Koshchii, Andrei Afanasev
Lepton mass effects for beam-normal single-spin asymmetry in elastic muon-proton scattering
9 pages, 5 figures, to appear in Phys. Rev. D
Phys. Rev. D 100, 096020 (2019)
10.1103/PhysRevD.100.096020
MITP/19-038
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We estimate the beam-normal single-spin asymmetry in elastic lepton-proton scattering without employing the ultrarelativistic approximation. Our calculation is relevant for analyses of muon scattering at energies of few hundred MeV and below -- when effects of the muon mass become essential. At such energies, the tra...
[ { "created": "Fri, 24 May 2019 13:10:56 GMT", "version": "v1" }, { "created": "Fri, 22 Nov 2019 08:40:26 GMT", "version": "v2" } ]
2019-11-28
[ [ "Koshchii", "Oleksandr", "" ], [ "Afanasev", "Andrei", "" ] ]
We estimate the beam-normal single-spin asymmetry in elastic lepton-proton scattering without employing the ultrarelativistic approximation. Our calculation is relevant for analyses of muon scattering at energies of few hundred MeV and below -- when effects of the muon mass become essential. At such energies, the trans...
hep-ph/9407351
Gerard Jungman
Gerard Jungman and Marc Kamionkowski
Neutrinos From Particle Decay in the Sun and Earth
submitted as a complete encapsulated postscript file, archived with uufiles 32 pages, IASSNS-HEP-94/45, SU-HEP-4240-584
Phys.Rev.D51:328-340,1995
10.1103/PhysRevD.51.328
null
hep-ph astro-ph
null
Weakly interacting massive particles (WIMPs) may be indirectly detected by observation of upward muons induced by energetic neutrinos from annihilation of WIMPs that have accumulated in the Sun and/or Earth. Energetic muon neutrinos come from the decays of $\tau$ leptons, $c$, $b$, and $t$ quarks, gauge bosons, and H...
[ { "created": "Fri, 22 Jul 1994 00:43:15 GMT", "version": "v1" } ]
2011-01-25
[ [ "Jungman", "Gerard", "" ], [ "Kamionkowski", "Marc", "" ] ]
Weakly interacting massive particles (WIMPs) may be indirectly detected by observation of upward muons induced by energetic neutrinos from annihilation of WIMPs that have accumulated in the Sun and/or Earth. Energetic muon neutrinos come from the decays of $\tau$ leptons, $c$, $b$, and $t$ quarks, gauge bosons, and Hig...
hep-ph/0308306
Q. H. Zhang
Q. H. Zhang, J. Barrette, C. Gale
Phase-space density in heavy-ion collisions revisited
18 Pages, Four eps files, EPJC in Press
Eur.Phys.J.C30:517-523,2003
10.1140/epjc/s2003-01295-0
null
hep-ph
null
We derive the phase space density of bosons from a general boson interferometry formula. We find that the phase space density is connected with the two-particles and the single particle density distribution functions. If the boson density is large, the two particles density distribution function can not be expresse...
[ { "created": "Fri, 29 Aug 2003 01:09:54 GMT", "version": "v1" } ]
2010-01-15
[ [ "Zhang", "Q. H.", "" ], [ "Barrette", "J.", "" ], [ "Gale", "C.", "" ] ]
We derive the phase space density of bosons from a general boson interferometry formula. We find that the phase space density is connected with the two-particles and the single particle density distribution functions. If the boson density is large, the two particles density distribution function can not be expressed as...
2308.00746
Kyle Lee
Kyle Lee, Ian Moult
Energy Correlators Taking Charge
6 pages, 5 incredible figures
null
null
MIT-CTP-5590
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The confining transition from asymptotically free partons to hadrons remains one of the most mysterious aspects of Quantum Chromodynamics. With the wealth of high quality jet substructure data we can hope to gain new experimental insights into the details of its dynamics. Jet substructure has traditionally focused on...
[ { "created": "Tue, 1 Aug 2023 18:00:01 GMT", "version": "v1" } ]
2023-08-03
[ [ "Lee", "Kyle", "" ], [ "Moult", "Ian", "" ] ]
The confining transition from asymptotically free partons to hadrons remains one of the most mysterious aspects of Quantum Chromodynamics. With the wealth of high quality jet substructure data we can hope to gain new experimental insights into the details of its dynamics. Jet substructure has traditionally focused on c...
hep-ph/0303254
Georg Kreyerhoff
Saul Barshay and Georg Kreyerhoff
A new implication for strong interactions if large, direct CP violation in Bbar^0(B^0) -> pi^+pi^- is confirmed
6 pages, no figures
JHEP 0309:004,2003
10.1088/1126-6708/2003/09/004
null
hep-ph
null
We show that the large, direct CP-violation parameter $A_{\pi\pi}=-C_{\pi\pi}$, reported by the BELLE collaboration in the decays Bbar^0(B^0) -> \pi^+\pi^-, implies an unusual situation in which the presence of a very large difference between two strong-interaction phases ~ -110 deg. plays an essential role. We make ...
[ { "created": "Sun, 30 Mar 2003 17:23:17 GMT", "version": "v1" }, { "created": "Mon, 28 Apr 2003 06:08:28 GMT", "version": "v2" }, { "created": "Tue, 13 May 2003 16:59:54 GMT", "version": "v3" } ]
2011-01-05
[ [ "Barshay", "Saul", "" ], [ "Kreyerhoff", "Georg", "" ] ]
We show that the large, direct CP-violation parameter $A_{\pi\pi}=-C_{\pi\pi}$, reported by the BELLE collaboration in the decays Bbar^0(B^0) -> \pi^+\pi^-, implies an unusual situation in which the presence of a very large difference between two strong-interaction phases ~ -110 deg. plays an essential role. We make th...
1111.4193
Kemal Ozeren
Harald Ita, Kemal Ozeren
Colour Decompositions of Multi-quark One-loop QCD Amplitudes
39 pages
null
10.1007/JHEP02(2012)118
UCLA-11-TEP-110
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We describe the decomposition of one-loop QCD amplitudes in terms of colour-ordered building blocks. We give new expressions for the coefficients of QCD colour structures in terms of ordered objects called primitive amplitudes, for processes with up to seven partons. These results are needed in computations of high-m...
[ { "created": "Thu, 17 Nov 2011 19:57:09 GMT", "version": "v1" } ]
2015-06-03
[ [ "Ita", "Harald", "" ], [ "Ozeren", "Kemal", "" ] ]
We describe the decomposition of one-loop QCD amplitudes in terms of colour-ordered building blocks. We give new expressions for the coefficients of QCD colour structures in terms of ordered objects called primitive amplitudes, for processes with up to seven partons. These results are needed in computations of high-mul...
hep-ph/0006109
M. P. Khanna
R. Mohanta, A. K. Giri and M. P. Khanna
Charmless two body hadronic decays of $\Lambda_b$ baryon
Latex, 16 pages
Phys.Rev.D63:074001,2001
10.1103/PhysRevD.63.074001
null
hep-ph
null
Using a theoretical framework based on the next-to-leading order QCD improved effective Hamiltonian, we have estimated the branching ratios and asymmetry parameters for the two body charmless nonleptonic decay modes of $\Lambda_b$ baryon i.e. $\Lambda_b \to p (\pi/\rho),~p(K/K^*)$ and $\Lambda (\pi/\rho)$, within the...
[ { "created": "Mon, 12 Jun 2000 05:29:29 GMT", "version": "v1" } ]
2011-03-23
[ [ "Mohanta", "R.", "" ], [ "Giri", "A. K.", "" ], [ "Khanna", "M. P.", "" ] ]
Using a theoretical framework based on the next-to-leading order QCD improved effective Hamiltonian, we have estimated the branching ratios and asymmetry parameters for the two body charmless nonleptonic decay modes of $\Lambda_b$ baryon i.e. $\Lambda_b \to p (\pi/\rho),~p(K/K^*)$ and $\Lambda (\pi/\rho)$, within the f...
1009.1094
Massimo Ladisa
Roberto Casalbuoni, Massimo Ladisa, and Valerio Olevano
On aspects of self-consistency in the Dyson-Schwinger approach to QED and \lambda (\phi^\star \phi)^2 theories
9 pages, to appear on Phys. Rev. D
Phys.Rev.D82:094023,2010
10.1103/PhysRevD.82.094023
null
hep-ph cond-mat.other
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate some aspects of the self-consistency in the Dyson-Schwinger approach to both the QED and the self-interacting scalar field theories. We prove that the set of the Dyson-Schwinger equations, together with the Green-Ward-Takahashi identity, is equivalent to the analogous set of integral equations studied ...
[ { "created": "Mon, 6 Sep 2010 17:05:19 GMT", "version": "v1" }, { "created": "Thu, 21 Oct 2010 10:58:21 GMT", "version": "v2" } ]
2010-11-26
[ [ "Casalbuoni", "Roberto", "" ], [ "Ladisa", "Massimo", "" ], [ "Olevano", "Valerio", "" ] ]
We investigate some aspects of the self-consistency in the Dyson-Schwinger approach to both the QED and the self-interacting scalar field theories. We prove that the set of the Dyson-Schwinger equations, together with the Green-Ward-Takahashi identity, is equivalent to the analogous set of integral equations studied in...
hep-ph/9404210
null
Alon E. Faraggi
Deriving The Standard Model From Superstring Theory
IASSNS--HEP--94/21, 11 pages
null
null
null
hep-ph hep-th
null
I outline a program to derive the Standard Model directly from superstring theory. I present a class of three generation superstring standard--like models in the free fermionic formulation. I discuss some phenomenological properties of these models. In particular these models suggest an explanation for the top quark ...
[ { "created": "Mon, 4 Apr 1994 13:39:11 GMT", "version": "v1" } ]
2007-05-23
[ [ "Faraggi", "Alon E.", "" ] ]
I outline a program to derive the Standard Model directly from superstring theory. I present a class of three generation superstring standard--like models in the free fermionic formulation. I discuss some phenomenological properties of these models. In particular these models suggest an explanation for the top quark ma...
1306.5426
Juan M. Torres-Rincon
Laura Tolos and Juan M. Torres-Rincon
D-meson propagation in hot dense matter
17 pages, 11 figures. One reference added and several typos corrected. This version, which coincides with the published manuscript, includes the Delta baryon vacuum decay constant in the unitarization process. Results do not appreciably change with respect to the first version
Phys. Rev. D 88, 074019 (2013)
10.1103/PhysRevD.88.074019
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The drag force and diffusion coefficients for a D meson are calculated in hot dense matter composed of light mesons and baryons, such as it is formed in heavy-ion collisions. We use a unitarized approach based on effective models for the interaction of a D meson with hadrons, which are compatible with chiral and heav...
[ { "created": "Sun, 23 Jun 2013 15:47:27 GMT", "version": "v1" }, { "created": "Tue, 22 Oct 2013 15:50:16 GMT", "version": "v2" } ]
2013-10-23
[ [ "Tolos", "Laura", "" ], [ "Torres-Rincon", "Juan M.", "" ] ]
The drag force and diffusion coefficients for a D meson are calculated in hot dense matter composed of light mesons and baryons, such as it is formed in heavy-ion collisions. We use a unitarized approach based on effective models for the interaction of a D meson with hadrons, which are compatible with chiral and heavy ...
1507.08858
David Burton
D.A. Burton, A. Noble, T.J. Walton
Axionic suppression of plasma wakefield acceleration
14 pages
J. Phys. A: Math. Theor. 49 (2016) 385501
10.1088/1751-8113/49/38/385501
null
hep-ph physics.acc-ph physics.plasm-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Contemporary attempts to explain the existence of ultra-high energy cosmic rays using plasma-based wakefield acceleration deliberately avoid non-Standard Model particle physics. However, such proposals exploit some of the most extreme environments in the Universe and it is conceivable that hypothetical particles outs...
[ { "created": "Fri, 31 Jul 2015 12:44:45 GMT", "version": "v1" }, { "created": "Sat, 30 Jul 2016 14:53:58 GMT", "version": "v2" } ]
2016-08-29
[ [ "Burton", "D. A.", "" ], [ "Noble", "A.", "" ], [ "Walton", "T. J.", "" ] ]
Contemporary attempts to explain the existence of ultra-high energy cosmic rays using plasma-based wakefield acceleration deliberately avoid non-Standard Model particle physics. However, such proposals exploit some of the most extreme environments in the Universe and it is conceivable that hypothetical particles outsid...
hep-ph/0307008
Fuming Liu
F.M. Liu, J. Aichelin, K. Werner, M. Bleicher
Micro-Canonical Hadron Production in pp collisions
15 pages 11 figures
Phys.Rev. C69 (2004) 054002
10.1103/PhysRevC.69.054002
null
hep-ph
null
We apply a microcanonical statistical model to investigate hadron production in pp collisions. The parameters of the model are the energy E and the volume V of the system, which we determine via fitting the average multiplicity of charged pions, protons and antiprotons in pp collisions at different collision energies...
[ { "created": "Tue, 1 Jul 2003 08:57:07 GMT", "version": "v1" }, { "created": "Tue, 2 Sep 2003 18:43:58 GMT", "version": "v2" }, { "created": "Thu, 30 Oct 2003 10:21:57 GMT", "version": "v3" } ]
2009-11-10
[ [ "Liu", "F. M.", "" ], [ "Aichelin", "J.", "" ], [ "Werner", "K.", "" ], [ "Bleicher", "M.", "" ] ]
We apply a microcanonical statistical model to investigate hadron production in pp collisions. The parameters of the model are the energy E and the volume V of the system, which we determine via fitting the average multiplicity of charged pions, protons and antiprotons in pp collisions at different collision energies. ...
hep-ph/0112344
Jihn E. Kim
Jihn E. Kim
Self-tuning Solution of Cosmological Constant in RS-II Model and Goldstone Boson
11 pages including 7 eps figures, talk presented at COSMO-01, Rovaniemi, Finland, Aug. 29 - Sep. 4, 2001. Typos corrected
null
null
null
hep-ph
null
I give a review on the self-tuning solution of the cosmological constant in a 5D RS-II model using a three index antisymmetric tensor field $A_{MNP}$. The three index antisymmetric tensor field can be the fundamental one appearing in 11D supergravity. Also, the dual of its field strength $H_{MNPQ}$, being a massless ...
[ { "created": "Fri, 28 Dec 2001 07:10:49 GMT", "version": "v1" }, { "created": "Mon, 7 Jan 2002 08:25:10 GMT", "version": "v2" }, { "created": "Wed, 9 Jan 2002 04:40:13 GMT", "version": "v3" } ]
2007-05-23
[ [ "Kim", "Jihn E.", "" ] ]
I give a review on the self-tuning solution of the cosmological constant in a 5D RS-II model using a three index antisymmetric tensor field $A_{MNP}$. The three index antisymmetric tensor field can be the fundamental one appearing in 11D supergravity. Also, the dual of its field strength $H_{MNPQ}$, being a massless sc...
1612.03888
Yongchao Zhang
Ligong Bian, Jing Shu, Yongchao Zhang
Triple Gauge Couplings at Future Hadron and Lepton Colliders
6 pages, presentation at the IAS Program on HEP, January 2016, Hong Kong, based on 1507.02238
Int.J.Mod.Phys. A31 (2016) no.33, 1644008
10.1142/S0217751X16440085
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The $WW$ production is the primary channel to directly probe the triple gauge couplings. We analyze the $e^+ e^- \rightarrow W^+ W^-$ process at the proposed Circular Electron-Positron Collider (CEPC), and find that the anomalous triple gauge couplings and relevant dimension six operators can be probed up to the orde...
[ { "created": "Mon, 12 Dec 2016 20:40:28 GMT", "version": "v1" } ]
2016-12-13
[ [ "Bian", "Ligong", "" ], [ "Shu", "Jing", "" ], [ "Zhang", "Yongchao", "" ] ]
The $WW$ production is the primary channel to directly probe the triple gauge couplings. We analyze the $e^+ e^- \rightarrow W^+ W^-$ process at the proposed Circular Electron-Positron Collider (CEPC), and find that the anomalous triple gauge couplings and relevant dimension six operators can be probed up to the order ...
1507.01681
Teppei Kitahara
Tomohiro Abe, Teppei Kitahara, Mihoko M. Nojiri
Prospects for Spin-1 Resonance Search at 13 TeV LHC and the ATLAS Diboson Excess
38 pages, 19 figures, 1 table; minor changes, references added, version published in JHEP
JHEP 1602 (2016) 084
10.1007/JHEP02(2016)084
KEK-TH-1843, IPMU-15-0101
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivated by ATLAS diboson excess around 2 TeV, we investigate a phenomenology of spin-1 resonances in a model where electroweak sector in the SM is weakly coupled to strong dynamics. The spin-1 resonances, W' and Z', are introduced as effective degrees of freedom of the dynamical sector. We explore several theoretic...
[ { "created": "Tue, 7 Jul 2015 05:55:21 GMT", "version": "v1" }, { "created": "Fri, 22 Jan 2016 13:00:52 GMT", "version": "v2" } ]
2016-02-17
[ [ "Abe", "Tomohiro", "" ], [ "Kitahara", "Teppei", "" ], [ "Nojiri", "Mihoko M.", "" ] ]
Motivated by ATLAS diboson excess around 2 TeV, we investigate a phenomenology of spin-1 resonances in a model where electroweak sector in the SM is weakly coupled to strong dynamics. The spin-1 resonances, W' and Z', are introduced as effective degrees of freedom of the dynamical sector. We explore several theoretical...
1604.06444
Roberto Contino
Roberto Contino, Adam Falkowski, Florian Goertz, Christophe Grojean and Francesco Riva
On the Validity of the Effective Field Theory Approach to SM Precision Tests
26 pages, 2 figures; v2: Comments and references added, conclusions unchanged
null
10.1007/JHEP07(2016)144
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the conditions for an effective field theory (EFT) to give an adequate low-energy description of an underlying physics beyond the Standard Model (SM). Starting from the EFT where the SM is extended by dimension-6 operators, experimental data can be used without further assumptions to measure (or set limits...
[ { "created": "Thu, 21 Apr 2016 19:54:52 GMT", "version": "v1" }, { "created": "Wed, 7 Sep 2016 13:55:26 GMT", "version": "v2" } ]
2016-09-08
[ [ "Contino", "Roberto", "" ], [ "Falkowski", "Adam", "" ], [ "Goertz", "Florian", "" ], [ "Grojean", "Christophe", "" ], [ "Riva", "Francesco", "" ] ]
We discuss the conditions for an effective field theory (EFT) to give an adequate low-energy description of an underlying physics beyond the Standard Model (SM). Starting from the EFT where the SM is extended by dimension-6 operators, experimental data can be used without further assumptions to measure (or set limits o...
hep-ph/0412060
Xin-Nian Wang
Ben-Wei Zhang (IOPP), Enke Wang (IOPP & LBNL) and Xin-Nian Wang (LBNL)
Multiple Parton Scattering in Nuclei: Heavy Quark Energy Loss and Modified Fragmentation Functions
28 pages in RevTex with 20 postscript figures, final version
Nucl.Phys.A757:493-524,2005
10.1016/j.nuclphysa.2005.04.022
LBNL-56660
hep-ph nucl-th
null
Multiple scattering, induced radiative energy loss and modified fragmentation functions of a heavy quark in nuclear matter are studied within the framework of generalized factorization in perturbative QCD. Modified heavy quark fragmentation functions and energy loss are derived in detail with illustration of the mass...
[ { "created": "Fri, 3 Dec 2004 21:02:13 GMT", "version": "v1" }, { "created": "Sun, 1 May 2005 14:43:51 GMT", "version": "v2" }, { "created": "Thu, 14 Jul 2005 07:06:04 GMT", "version": "v3" } ]
2014-11-18
[ [ "Zhang", "Ben-Wei", "", "IOPP" ], [ "Wang", "Enke", "", "IOPP & LBNL" ], [ "Wang", "Xin-Nian", "", "LBNL" ] ]
Multiple scattering, induced radiative energy loss and modified fragmentation functions of a heavy quark in nuclear matter are studied within the framework of generalized factorization in perturbative QCD. Modified heavy quark fragmentation functions and energy loss are derived in detail with illustration of the mass d...
1906.11332
Marco Zaro
Riccardo Bellan, Jakob Beyer, Carsten Bittrich, Giacomo Boldrini, Ilaria Brivio, Lucrezia Stella Bruni, Diogo Buarque Franzosi, Claude Charlot, Vitaliano Ciulli, Roberto Covarelli, Duje Giljanovic, Giulia Gonella, Pietro Govoni, Philippe Gras, Michele Grossi, Tim Herrmann, Jan Kalinowski, Alexander Karlberg, Ki...
VBSCan Thessaloniki 2018 Workshop Summary
Editors: Lucrezia Stella Bruni, Roberto Covarelli, Pietro Govoni, Piergiulio Lenzi, Narei Lorenzo-Martinez, Joany Manjarres, Matthias Ulrich Mozer, Giacomo Ortona, Mathieu Pellen, Daniela Rebuzzi, Magdalena Slawinska, Marco Zaro. Proceedings for the second annual meeting of the VBSCan COST action
null
null
VBSCAN-PUB-05-19, DESY 19-108, Nikhef/2019-025, UWThPh 2019-20
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This document reports the first year of activity of the VBSCan COST Action network, as summarised by the talks and discussions happened during the VBSCan Thessaloniki 2018 workshop. The VBSCan COST action is aiming at a consistent and coordinated study of vector-boson scattering from the phenomenological and experime...
[ { "created": "Wed, 26 Jun 2019 20:20:57 GMT", "version": "v1" } ]
2019-06-28
[ [ "Bellan", "Riccardo", "" ], [ "Beyer", "Jakob", "" ], [ "Bittrich", "Carsten", "" ], [ "Boldrini", "Giacomo", "" ], [ "Brivio", "Ilaria", "" ], [ "Bruni", "Lucrezia Stella", "" ], [ "Franzosi", "Diogo Buarque",...
This document reports the first year of activity of the VBSCan COST Action network, as summarised by the talks and discussions happened during the VBSCan Thessaloniki 2018 workshop. The VBSCan COST action is aiming at a consistent and coordinated study of vector-boson scattering from the phenomenological and experiment...
hep-ph/0312361
Balasubramanian Ananthanarayan
B. Ananthanarayan, P. N. Pandita
Squark and slepton masses as probes of supersymmetric SO(10) unification
15 pages using RevTeX
Mod.Phys.Lett.A19:467,2004
10.1142/S0217732304013210
JLAB-PHY-03-133, IISc-CTS-4/03
hep-ph
null
We carry out an analysis of the non-universal supersymmetry breaking scalar masses arising in SO(10) supersymmetric unification. By considering patterns of squark and slepton masses, we derive a set of sum rules for the sfermion masses which are independent of the manner in which SO(10) breaks to the Standard Model g...
[ { "created": "Mon, 29 Dec 2003 08:02:03 GMT", "version": "v1" } ]
2014-12-10
[ [ "Ananthanarayan", "B.", "" ], [ "Pandita", "P. N.", "" ] ]
We carry out an analysis of the non-universal supersymmetry breaking scalar masses arising in SO(10) supersymmetric unification. By considering patterns of squark and slepton masses, we derive a set of sum rules for the sfermion masses which are independent of the manner in which SO(10) breaks to the Standard Model gau...
hep-ph/0406160
Stefano Laporta
S. Laporta, E. Remiddi
Analytic treatment of the two loop equal mass sunrise graph
33 pages, LaTeX, v2: +1 figure; v3: changes in the conclusions; simplifications in the recurrences (6.3) and (6.9)
Nucl.Phys. B704 (2005) 349-386
10.1016/j.nuclphysb.2004.10.044
CERN-PH-TH/2004-089
hep-ph
null
The two loop equal mass sunrise graph is considered in the continuous d-dimensional regularisation for arbitrary values of the momentum transfer. After recalling the equivalence of the expansions at d=2 and d=4, the second order differential equation for the scalar Master Integral is expanded in (d-2) and solved by t...
[ { "created": "Tue, 15 Jun 2004 12:36:54 GMT", "version": "v1" }, { "created": "Wed, 30 Jun 2004 13:56:55 GMT", "version": "v2" }, { "created": "Thu, 7 Oct 2004 12:17:55 GMT", "version": "v3" } ]
2010-04-05
[ [ "Laporta", "S.", "" ], [ "Remiddi", "E.", "" ] ]
The two loop equal mass sunrise graph is considered in the continuous d-dimensional regularisation for arbitrary values of the momentum transfer. After recalling the equivalence of the expansions at d=2 and d=4, the second order differential equation for the scalar Master Integral is expanded in (d-2) and solved by the...
0710.4125
Emmanuel Lipmanov
E. M. Lipmanov
Quadratic Hierarchy Flavor Rule as the Origin of Dirac CP-Violating Phases
8 pages
null
null
null
hep-ph
null
The premise of an organizing quadratic hierarchy rule in lepton-quark flavor physics was used earlier for explanation of the hierarchy patterns of four generic pairs of flavor quantities 1) charged-lepton and 2) neutrino deviations from mass-degeneracy, 3) deviations of lepton mixing from maximal magnitude and 4) dev...
[ { "created": "Mon, 22 Oct 2007 19:20:06 GMT", "version": "v1" }, { "created": "Wed, 24 Oct 2007 19:53:51 GMT", "version": "v2" } ]
2007-10-24
[ [ "Lipmanov", "E. M.", "" ] ]
The premise of an organizing quadratic hierarchy rule in lepton-quark flavor physics was used earlier for explanation of the hierarchy patterns of four generic pairs of flavor quantities 1) charged-lepton and 2) neutrino deviations from mass-degeneracy, 3) deviations of lepton mixing from maximal magnitude and 4) devia...
2102.02800
Adriana Perez-Martinez
M. G\'omez-Bock, M. Mondrag\'on, A. P\'erez-Mart\'inez
Scalar and gauge sectors in the 3-Higgs Doublet Model under the S3-symmetry
48 pages, 3 figures, 2 tables. Improved and extended analysis (sections 2, 3 and 4), includes more detailed discussions with some clarifications and new figures. Introduction and Conclusion were modified accordingly. Text improved, references added, typographical errors corrected. This version corresponds to th...
Eur.Phys.J.C 81, 942 (2021)
10.1140/epjc/s10052-021-09731-3
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyse the Higgs sector of an $S_3$ model with three Higgs doublets and no CP violation. After electroweak breaking there are nine physical Higgs bosons, one of which corresponds to the Standard Model one. We study the scalar and gauge sectors of this model, taking into account the conditions set by the minimisat...
[ { "created": "Thu, 4 Feb 2021 18:46:21 GMT", "version": "v1" }, { "created": "Wed, 17 Feb 2021 20:50:15 GMT", "version": "v2" }, { "created": "Thu, 28 Oct 2021 05:01:44 GMT", "version": "v3" } ]
2021-10-29
[ [ "Gómez-Bock", "M.", "" ], [ "Mondragón", "M.", "" ], [ "Pérez-Martínez", "A.", "" ] ]
We analyse the Higgs sector of an $S_3$ model with three Higgs doublets and no CP violation. After electroweak breaking there are nine physical Higgs bosons, one of which corresponds to the Standard Model one. We study the scalar and gauge sectors of this model, taking into account the conditions set by the minimisatio...
0706.2569
Leif Lonnblad
J. Alwall, S. Hoeche, F. Krauss, N. Lavesson, L. Lonnblad, F. Maltoni, M.L. Mangano, M. Moretti, C.G. Papadopoulos, F. Piccinini, S. Schumann, M. Treccani, J. Winter, M. Worek
Comparative study of various algorithms for the merging of parton showers and matrix elements in hadronic collisions
null
Eur.Phys.J.C53:473-500,2008
10.1140/epjc/s10052-007-0490-5
null
hep-ph
null
We compare different procedures for combining fixed-order tree-level matrix-element generators with parton showers. We use the case of W-production at the Tevatron and the LHC to compare different implementations of the so-called CKKW and MLM schemes using different matrix-element generators and different parton casc...
[ { "created": "Mon, 18 Jun 2007 10:31:19 GMT", "version": "v1" }, { "created": "Wed, 16 Jan 2008 17:24:24 GMT", "version": "v2" } ]
2008-11-26
[ [ "Alwall", "J.", "" ], [ "Hoeche", "S.", "" ], [ "Krauss", "F.", "" ], [ "Lavesson", "N.", "" ], [ "Lonnblad", "L.", "" ], [ "Maltoni", "F.", "" ], [ "Mangano", "M. L.", "" ], [ "Moretti", "M.", ...
We compare different procedures for combining fixed-order tree-level matrix-element generators with parton showers. We use the case of W-production at the Tevatron and the LHC to compare different implementations of the so-called CKKW and MLM schemes using different matrix-element generators and different parton cascad...
1908.07541
Mikko Laine
S. Biondini, Seyong Kim, M. Laine
Non-relativistic susceptibility and a dark matter application
14 pages. v2: clarifications added
JCAP 1910 (2019) 078
10.1088/1475-7516/2019/10/078
null
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
When thermal rate equations are derived for the evolution of slow variables, it is often practical to parametrize the right-hand side with chemical potentials. To close the system, the chemical potentials are subsequently re-expressed in terms of the slow variables, which involves the consideration of a "susceptibili...
[ { "created": "Tue, 20 Aug 2019 18:00:12 GMT", "version": "v1" }, { "created": "Tue, 5 Nov 2019 12:28:09 GMT", "version": "v2" } ]
2019-11-06
[ [ "Biondini", "S.", "" ], [ "Kim", "Seyong", "" ], [ "Laine", "M.", "" ] ]
When thermal rate equations are derived for the evolution of slow variables, it is often practical to parametrize the right-hand side with chemical potentials. To close the system, the chemical potentials are subsequently re-expressed in terms of the slow variables, which involves the consideration of a "susceptibility...
1602.07574
Natascia Vignaroli
Emiliano Molinaro, Francesco Sannino, Natascia Vignaroli
Collider Tests of (Composite) Diphoton Resonances
17 pages, 5 figures
Nuclear Physics, Section B (2016) pp. 106-126
10.1016/j.nuclphysb.2016.07.032
CP3-Origins-2016-007 DNRF90, DIAS-2016-7
hep-ph hep-ex hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze the Large Hadron Collider sensitivity to new pseudoscalar resonances decaying into diphoton with masses up to scales of few TeVs. We focus on minimal scenarios where the production mechanisms involve either photon or top-mediated gluon fusion, partially motivated by the tantalizing excess around 750 GeV re...
[ { "created": "Wed, 24 Feb 2016 16:14:07 GMT", "version": "v1" }, { "created": "Fri, 12 Aug 2016 11:57:18 GMT", "version": "v2" } ]
2016-08-15
[ [ "Molinaro", "Emiliano", "" ], [ "Sannino", "Francesco", "" ], [ "Vignaroli", "Natascia", "" ] ]
We analyze the Large Hadron Collider sensitivity to new pseudoscalar resonances decaying into diphoton with masses up to scales of few TeVs. We focus on minimal scenarios where the production mechanisms involve either photon or top-mediated gluon fusion, partially motivated by the tantalizing excess around 750 GeV repo...
1601.07208
Matthew Dolan
Matthew J. Dolan, J.L. Hewett, M. Kr\"amer, T.G. Rizzo
Simplified Models for Higgs Physics: Singlet Scalar and Vector-like Quark Phenomenology
27 pages, 10 figures
null
10.1007/JHEP07(2016)039
SLAC-PUB-16330, TTK-16-03
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Simplified models provide a useful tool to conduct the search and exploration of physics beyond the Standard Model in a model-independent fashion. In this work we consider the complementarity of indirect searches for new physics in Higgs couplings and distributions with direct searches for new particles, using a simp...
[ { "created": "Tue, 26 Jan 2016 22:20:57 GMT", "version": "v1" } ]
2016-08-03
[ [ "Dolan", "Matthew J.", "" ], [ "Hewett", "J. L.", "" ], [ "Krämer", "M.", "" ], [ "Rizzo", "T. G.", "" ] ]
Simplified models provide a useful tool to conduct the search and exploration of physics beyond the Standard Model in a model-independent fashion. In this work we consider the complementarity of indirect searches for new physics in Higgs couplings and distributions with direct searches for new particles, using a simpli...
hep-ph/9309233
Ken-ichiro Aoki
Kenichiro Aoki
Effects of new physics to the the $\rho$--parameter in the supersymmetric standard model
12 pages (5 figs), TIT/HEP-233, harvmac
Int. J. Mod. Phys. A10 (1995) 1765-1778
10.1142/S0217751X95000863
null
hep-ph
null
The contribution to the $\rho$--parameter of the quark--Higgs sector of the supersymmetric standard model is computed non--perturbatively using the large--$\nf$ expansion for the case tan$\beta$=0. An explicit formula is found for the $\rho$--parameter which is ill-defined unless the triviality cutoff is taken into a...
[ { "created": "Tue, 7 Sep 1993 08:05:19 GMT", "version": "v1" } ]
2015-06-25
[ [ "Aoki", "Kenichiro", "" ] ]
The contribution to the $\rho$--parameter of the quark--Higgs sector of the supersymmetric standard model is computed non--perturbatively using the large--$\nf$ expansion for the case tan$\beta$=0. An explicit formula is found for the $\rho$--parameter which is ill-defined unless the triviality cutoff is taken into acc...
hep-ph/0609163
Hua-Xing Chen
Hua-Xing Chen, Atsushi Hosaka and Shi-Lin Zhu
QCD Sum Rule Study of the Masses of Light Tetraquark Scalar Mesons
4 pages, 2 figures; reference added, minor corrections; version to appear in Physics Letters B
Phys.Lett.B650:369-372,2007
10.1016/j.physletb.2007.05.031
null
hep-ph hep-ex nucl-th
null
We study the low-lying scalar mesons of light u, d, s flavors in the QCD sum rule. Having all possible combinations of tetraquark currents in the local form, QCD sum rule analysis has been carefully performed. We found that using the appropriate tetraquark currents, the masses of sigma, kappa, f_0 and a_0 mesons appe...
[ { "created": "Mon, 18 Sep 2006 01:51:15 GMT", "version": "v1" }, { "created": "Mon, 1 Jan 2007 04:02:57 GMT", "version": "v2" }, { "created": "Wed, 20 Jun 2007 13:34:00 GMT", "version": "v3" } ]
2007-07-18
[ [ "Chen", "Hua-Xing", "" ], [ "Hosaka", "Atsushi", "" ], [ "Zhu", "Shi-Lin", "" ] ]
We study the low-lying scalar mesons of light u, d, s flavors in the QCD sum rule. Having all possible combinations of tetraquark currents in the local form, QCD sum rule analysis has been carefully performed. We found that using the appropriate tetraquark currents, the masses of sigma, kappa, f_0 and a_0 mesons appear...
1807.11193
Alexey Baskakov
Alexey Baskakov and Eduard Boos and Lev Dudko
Model independent top quark width measurement using a combination of resonant and non resonant cross sections
null
Phys. Rev. D 98, 116011 (2018)
10.1103/PhysRevD.98.116011
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Though top quark was discovered more than twenty years ago, measurement of its width is still challenging task. Most measurements either have rather low precision or they are done in assumption of the SM top quark interactions. We consider model independent parametrization of the top quark width and provide estimatio...
[ { "created": "Mon, 30 Jul 2018 07:01:42 GMT", "version": "v1" }, { "created": "Thu, 7 Feb 2019 19:58:29 GMT", "version": "v2" } ]
2019-02-11
[ [ "Baskakov", "Alexey", "" ], [ "Boos", "Eduard", "" ], [ "Dudko", "Lev", "" ] ]
Though top quark was discovered more than twenty years ago, measurement of its width is still challenging task. Most measurements either have rather low precision or they are done in assumption of the SM top quark interactions. We consider model independent parametrization of the top quark width and provide estimations...
0801.0626
Xing-Gang Wu
Dai-Min Zeng, Xing-Gang Wu and Zhen-Yun Fang
$B\to K$ Transition Form Factor with Tensor Current within the $k_T$ Factorization Approach
8 pages, 4 figures, references added
Chin.Phys.Lett.25:436,2008
10.1088/0256-307X/25/2/023
null
hep-ph
null
In the paper, we apply the $k_T$ factorization approach to deal with the $B\to K$ transition form factor with tensor current in the large recoil regions. Main uncertainties for the estimation are discussed and we obtain $F_T^{B\to K}(0)=0.25\pm0.01\pm0.02$, where the first error is caused by the uncertainties from th...
[ { "created": "Fri, 4 Jan 2008 06:56:19 GMT", "version": "v1" }, { "created": "Wed, 9 Jan 2008 03:14:04 GMT", "version": "v2" } ]
2008-11-26
[ [ "Zeng", "Dai-Min", "" ], [ "Wu", "Xing-Gang", "" ], [ "Fang", "Zhen-Yun", "" ] ]
In the paper, we apply the $k_T$ factorization approach to deal with the $B\to K$ transition form factor with tensor current in the large recoil regions. Main uncertainties for the estimation are discussed and we obtain $F_T^{B\to K}(0)=0.25\pm0.01\pm0.02$, where the first error is caused by the uncertainties from the ...
2011.03942
Dandan Shen
Dan-Dan Shen, Chong-Yang Lu, Peng Sun, Ruilin Zhu
Radiative decays of Upsilon(nS) into S-wave and P-wave charmonium
10 pages,3 figures,6 tables
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivated by very recent measurement of the radiative decays of $\Upsilon(1S)$ to $\chi_{c1}$ at Belle, we use the nonrelativistic QCD factorization theory and calculate the branching fractions of the radiative decays of bottomonium into S-wave and P-wave charmonium, i.e. $\Upsilon(nS) \to \eta_c(nS)+\gamma$ and $\Up...
[ { "created": "Sun, 8 Nov 2020 09:50:21 GMT", "version": "v1" } ]
2020-11-10
[ [ "Shen", "Dan-Dan", "" ], [ "Lu", "Chong-Yang", "" ], [ "Sun", "Peng", "" ], [ "Zhu", "Ruilin", "" ] ]
Motivated by very recent measurement of the radiative decays of $\Upsilon(1S)$ to $\chi_{c1}$ at Belle, we use the nonrelativistic QCD factorization theory and calculate the branching fractions of the radiative decays of bottomonium into S-wave and P-wave charmonium, i.e. $\Upsilon(nS) \to \eta_c(nS)+\gamma$ and $\Upsi...
hep-ph/0404009
Joaquim Matias
David London and Joaquim Matias
Testing the Standard Model with Bs-> K^+ K^- Decays
4 pages with 5 figures. Introduction modified; brief discussion about SU(3) breaking added; references changed. Conclusions unchanged. To be published in PRD: Rapid Communications
Phys.Rev. D70 (2004) 031502
10.1103/PhysRevD.70.031502
UdeM-GPP-TH-04-120, McGill 07/04, UAB-FT-558
hep-ph
null
In the limit of flavor SU(3) symmetry, the amplitudes for Bd->pi^+\pi^- and Bs-> K^+ K^- are related to one another. Taking the values of the weak phases beta and gamma from independent measurements, the ratio Rds=BR(Bs-> K^+K^-)/BR(Bd->pi^+ pi^-) and the two Bd->pi^+pi^- CP asymmetries Adir and Amix depend on only t...
[ { "created": "Thu, 1 Apr 2004 17:08:28 GMT", "version": "v1" }, { "created": "Sat, 12 Jun 2004 12:23:21 GMT", "version": "v2" } ]
2009-11-10
[ [ "London", "David", "" ], [ "Matias", "Joaquim", "" ] ]
In the limit of flavor SU(3) symmetry, the amplitudes for Bd->pi^+\pi^- and Bs-> K^+ K^- are related to one another. Taking the values of the weak phases beta and gamma from independent measurements, the ratio Rds=BR(Bs-> K^+K^-)/BR(Bd->pi^+ pi^-) and the two Bd->pi^+pi^- CP asymmetries Adir and Amix depend on only two...
hep-ph/9507417
Jan Kalinowski
Jan Kalinowski
Three-Body Decays of the Susy Higgs Bosons
7 pages, uuencoded postscript file, Presented at the Int. Symposium on Particle Theory and Phenomenology, May 1995, Ames
null
null
IFT-95-11, DFTT 45/95
hep-ph
null
In this talk I discuss three-body decays of the SUSY Higgs bosons which proceed via intermediate two-body states in which one of the particles is off-mass-shell. Some of these decays will be shown to have substantial branching ratios in some range of the SUSY parameter space.
[ { "created": "Wed, 26 Jul 1995 07:01:55 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kalinowski", "Jan", "" ] ]
In this talk I discuss three-body decays of the SUSY Higgs bosons which proceed via intermediate two-body states in which one of the particles is off-mass-shell. Some of these decays will be shown to have substantial branching ratios in some range of the SUSY parameter space.
1811.10233
Ignasi Rosell
Ignasi Rosell, Claudius Krause, Antonio Pich, Joaqu\'in Santos, Juan Jos\'e Sanz-Cillero
Heavy resonances and the electroweak effective theory
4 pages. Talk given at The 39th International Conference on High Energy Physics (ICHEP2018), 4-11 July (2018), Seoul (Korea)
null
null
IFIC/18-43, FTUV/18-1126, FERMILAB-CONF-18-652-T, VBSCAN-PUB-08-18
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Taking into account the negative results of direct searches for beyond the Standard Model fields and the consequent mass gap between Standard Model and possible unknown states, the use of electroweak effective theories is justified. Whereas at low energies we consider a non-linear realization of the electroweak symme...
[ { "created": "Mon, 26 Nov 2018 08:57:34 GMT", "version": "v1" } ]
2019-02-12
[ [ "Rosell", "Ignasi", "" ], [ "Krause", "Claudius", "" ], [ "Pich", "Antonio", "" ], [ "Santos", "Joaquín", "" ], [ "Sanz-Cillero", "Juan José", "" ] ]
Taking into account the negative results of direct searches for beyond the Standard Model fields and the consequent mass gap between Standard Model and possible unknown states, the use of electroweak effective theories is justified. Whereas at low energies we consider a non-linear realization of the electroweak symmetr...
hep-ph/9803289
null
R.A. Janik, M.A. Nowak, G. Papp and I. Zahed pages : 4
Chiral Disorder in QCD
null
Phys.Rev.Lett. 81 (1998) 264-267
10.1103/PhysRevLett.81.264
null
hep-ph
null
Using the Gell-Mann-Oakes-Renner (GOR) relation and semi-classical arguments, we show that the bulk quark spectrum in QCD exhibits a variety of regimes including the ergodic one described by random matrix theory. We analyze the quark spectral form-factor in the diffusive and ballistic regime. We suggest that a class ...
[ { "created": "Mon, 9 Mar 1998 20:41:25 GMT", "version": "v1" } ]
2015-06-25
[ [ "Janik", "R. A.", "" ], [ "Nowak", "M. A.", "" ], [ "Papp", "G.", "" ], [ "pages", "I. Zahed", "" ], [ ":", "", "" ], [ "4", "", "" ] ]
Using the Gell-Mann-Oakes-Renner (GOR) relation and semi-classical arguments, we show that the bulk quark spectrum in QCD exhibits a variety of regimes including the ergodic one described by random matrix theory. We analyze the quark spectral form-factor in the diffusive and ballistic regime. We suggest that a class of...
hep-ph/0006010
null
L. D. Soloviev
Gluballs in the String Quark Model
10 pages, LATEX
Theor.Math.Phys. 126 (2001) 203-211; Teor.Mat.Fiz. 126 (2001) 247-257
null
null
hep-ph
null
It is shown that the eigenstates of the quantized simplest closed (elliptic) Nambu -- Goto string, called glueballs, have quantum numbers I^Gj^{PC}=0^+j^{++}. Lightest glueballs have spins j=0,1 and 2 and the same mass 1500 +/- 20 MeV. They correspond to f_0(1500), f_1(1510) and f_2(1565)- mesons. Next glueballs have...
[ { "created": "Thu, 1 Jun 2000 13:51:39 GMT", "version": "v1" } ]
2007-05-23
[ [ "Soloviev", "L. D.", "" ] ]
It is shown that the eigenstates of the quantized simplest closed (elliptic) Nambu -- Goto string, called glueballs, have quantum numbers I^Gj^{PC}=0^+j^{++}. Lightest glueballs have spins j=0,1 and 2 and the same mass 1500 +/- 20 MeV. They correspond to f_0(1500), f_1(1510) and f_2(1565)- mesons. Next glueballs have j...
hep-ph/9807380
Ellwanger
Ulrich Ellwanger
Field Strength Correlator and an Infrared Fixed Point of the Wilsonian Exact Renormalization Group Equations
28 pages, LaTex, 4 figures
Eur.Phys.J.C7:673-683,1999
10.1007/s100529801033
LPTHE Orsay 98-48
hep-ph
null
The correlator of two field strengths is computed from an effective action for Yang Mills theories, which contains both gluons and an auxiliary antisymmetric tensor field for the field strength as local variables. This action allows to relate explicitly many different approaches to confinement, and is computed using ...
[ { "created": "Wed, 15 Jul 1998 12:01:09 GMT", "version": "v1" } ]
2011-09-13
[ [ "Ellwanger", "Ulrich", "" ] ]
The correlator of two field strengths is computed from an effective action for Yang Mills theories, which contains both gluons and an auxiliary antisymmetric tensor field for the field strength as local variables. This action allows to relate explicitly many different approaches to confinement, and is computed using Wi...
2103.13458
Juan Antonio Aguilar-Saavedra
J.A. Aguilar-Saavedra, I. Lara, D.E. L\'opez-Fogliani, C. Mu\~noz
Exotic diboson $Z'$ decays in the U$\mu\nu$SSM
LaTeX 21 pages. v2: Journal version
null
10.1140/epjc/s10052-021-09588-6
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Searches for new leptophobic resonances at high energy colliders usually target their decay modes into pairs of light quarks, top quarks, or standard model bosons. Additional decay modes may also be present, producing signatures to which current searches are not sensitive. We investigate the performance of generic se...
[ { "created": "Wed, 24 Mar 2021 19:25:17 GMT", "version": "v1" }, { "created": "Wed, 8 Sep 2021 09:03:00 GMT", "version": "v2" } ]
2021-09-29
[ [ "Aguilar-Saavedra", "J. A.", "" ], [ "Lara", "I.", "" ], [ "López-Fogliani", "D. E.", "" ], [ "Muñoz", "C.", "" ] ]
Searches for new leptophobic resonances at high energy colliders usually target their decay modes into pairs of light quarks, top quarks, or standard model bosons. Additional decay modes may also be present, producing signatures to which current searches are not sensitive. We investigate the performance of generic sear...
0912.1521
Grigorii Pivovarov
Grigorii Pivovarov
New Renormalization Group Equations and the Naturalness Problem
12 revtex pages; a coefficient has been corrected in eq. (34), four new references added; final version to appear in Phys. Rev. D
Phys.Rev.D81:076007,2010
10.1103/PhysRevD.81.076007
CERN-PH-TH/2009-242
hep-ph astro-ph.HE hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Looking for an observable manifestation of the so-called unnaturalness of scalar fields we introduce a seemingly new set of differential equations for connected Green functions. These equations describe the momentum dependence of the Green functions and are close relatives to the previously known renormalization grou...
[ { "created": "Tue, 8 Dec 2009 15:28:01 GMT", "version": "v1" }, { "created": "Fri, 22 Jan 2010 10:32:51 GMT", "version": "v2" }, { "created": "Mon, 5 Apr 2010 14:41:34 GMT", "version": "v3" } ]
2010-05-12
[ [ "Pivovarov", "Grigorii", "" ] ]
Looking for an observable manifestation of the so-called unnaturalness of scalar fields we introduce a seemingly new set of differential equations for connected Green functions. These equations describe the momentum dependence of the Green functions and are close relatives to the previously known renormalization group ...
2211.08720
Jin Zhang
Jin Zhang
Infrared scalar one-loop three point integrals in loop regularization
20 pages, 4 figures
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
The infrared divergent scalar three-point integrals are evaluated by the loop regularization method. Three kinds of infrared divergent integrals, i.e., massless triangle diagram, triangle diagrams with one and two massive internal lines, are systematically evaluated by loop regularization, analytic results are obtain...
[ { "created": "Wed, 16 Nov 2022 07:23:05 GMT", "version": "v1" } ]
2022-11-17
[ [ "Zhang", "Jin", "" ] ]
The infrared divergent scalar three-point integrals are evaluated by the loop regularization method. Three kinds of infrared divergent integrals, i.e., massless triangle diagram, triangle diagrams with one and two massive internal lines, are systematically evaluated by loop regularization, analytic results are obtained...
1305.4572
Robert Shrock
Robert Shrock
Studies on the UV to IR Evolution of Gauge Theories and Quasiconformal Behavior
Talk given at the KMI-GCOE Workshop Strong Coupling Gauge Theories in the LHC Perspective (SCGT 12), Nagoya University, Dec. 2012, to appear in the proceedings
null
10.1142/9789814566254_0015
YITP-SB-13-13
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We describe recent results from our studies of the UV to IR evolution of asymptotically free vectorial gauge theories and quasiconformal behavior. These include higher-loop calculations of the IR zero of the beta function and of the anomalous dimension of the fermion bilinear. Effects of scheme-dependence of higher-l...
[ { "created": "Mon, 20 May 2013 16:34:00 GMT", "version": "v1" } ]
2017-08-23
[ [ "Shrock", "Robert", "" ] ]
We describe recent results from our studies of the UV to IR evolution of asymptotically free vectorial gauge theories and quasiconformal behavior. These include higher-loop calculations of the IR zero of the beta function and of the anomalous dimension of the fermion bilinear. Effects of scheme-dependence of higher-loo...
2405.03317
Maksim Valialshchikov
Maksim Valialshchikov, Felix Karbstein, Daniel Seipt and Matt Zepf
Numerical optimization of quantum vacuum signals
9 pages, 7 figures
null
null
null
hep-ph physics.optics
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The identification of prospective scenarios for observing quantum vacuum signals in high-intensity laser experiments requires both accurate theoretical predictions and the exploration of high-dimensional parameter spaces. Numerical simulations address the first requirement, while optimization provides an efficient so...
[ { "created": "Mon, 6 May 2024 09:49:06 GMT", "version": "v1" } ]
2024-05-07
[ [ "Valialshchikov", "Maksim", "" ], [ "Karbstein", "Felix", "" ], [ "Seipt", "Daniel", "" ], [ "Zepf", "Matt", "" ] ]
The identification of prospective scenarios for observing quantum vacuum signals in high-intensity laser experiments requires both accurate theoretical predictions and the exploration of high-dimensional parameter spaces. Numerical simulations address the first requirement, while optimization provides an efficient solu...
2112.00018
Matthias Neubert
Ze Long Liu (U. Bern), Matthias Neubert (JGU Mainz & Cornell U.), Marvin Schnubel and Xing Wang (JGU Mainz)
Radiative Quark Jet Function with an External Gluon
16 pages, 4 figures
null
10.1007/JHEP02(2022)075
MITP/21-065
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Factorization theorems in soft-collinear effective theory at subleading order in power counting involve ``radiative jet functions'', defined in terms of matrix elements of collinear fields with a soft momentum emitted from inside the jet. Of particular importance are the radiative quark jet functions with an external...
[ { "created": "Tue, 30 Nov 2021 19:00:01 GMT", "version": "v1" } ]
2022-03-02
[ [ "Liu", "Ze Long", "", "U. Bern" ], [ "Neubert", "Matthias", "", "JGU Mainz & Cornell U." ], [ "Schnubel", "Marvin", "", "JGU Mainz" ], [ "Wang", "Xing", "", "JGU Mainz" ] ]
Factorization theorems in soft-collinear effective theory at subleading order in power counting involve ``radiative jet functions'', defined in terms of matrix elements of collinear fields with a soft momentum emitted from inside the jet. Of particular importance are the radiative quark jet functions with an external p...
2207.04157
Ayan Paul
Lina Alasfar, Ramona Gr\"ober, Christophe Grojean, Ayan Paul, and Zhuoni Qian
Machine learning the trilinear and light-quark Yukawa couplings from Higgs pair kinematic shapes
36 pages, 10 figures and 6 tables, accepted for publication in JHEP
null
10.1007/JHEP11(2022)045
DESY 22-085 | HU-EP-21/34-RTG
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Revealing the Higgs pair production process is the next big challenge in high energy physics. In this work, we explore the use of interpretable machine learning and cooperative game theory for extraction of the trilinear Higgs self-coupling in Higgs pair production. In particular, we show how a topological decomposit...
[ { "created": "Fri, 8 Jul 2022 23:52:54 GMT", "version": "v1" }, { "created": "Mon, 31 Oct 2022 17:41:50 GMT", "version": "v2" } ]
2022-11-30
[ [ "Alasfar", "Lina", "" ], [ "Gröber", "Ramona", "" ], [ "Grojean", "Christophe", "" ], [ "Paul", "Ayan", "" ], [ "Qian", "Zhuoni", "" ] ]
Revealing the Higgs pair production process is the next big challenge in high energy physics. In this work, we explore the use of interpretable machine learning and cooperative game theory for extraction of the trilinear Higgs self-coupling in Higgs pair production. In particular, we show how a topological decompositio...
0707.3344
Markos Maniatis
M. Maniatis, A. von Manteuffel, O. Nachtmann
CP Violation in the General Two-Higgs-Doublet Model: a Geometric View
19 pages, minor additions, minor typos corrected, results unchanged
Eur.Phys.J.C57:719-738,2008
10.1140/epjc/s10052-008-0712-5
HD-THEP-07-16
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the CP properties of the potential in the general Two-Higgs-Doublet Model (THDM). This is done in a concise way using real gauge invariant functions built from the scalar products of the doublet fields. The space of these invariant functions, parametrising the gauge orbits of the Higgs fields, is isomorphi...
[ { "created": "Mon, 23 Jul 2007 12:32:27 GMT", "version": "v1" }, { "created": "Wed, 10 Sep 2008 14:48:53 GMT", "version": "v2" } ]
2008-12-18
[ [ "Maniatis", "M.", "" ], [ "von Manteuffel", "A.", "" ], [ "Nachtmann", "O.", "" ] ]
We discuss the CP properties of the potential in the general Two-Higgs-Doublet Model (THDM). This is done in a concise way using real gauge invariant functions built from the scalar products of the doublet fields. The space of these invariant functions, parametrising the gauge orbits of the Higgs fields, is isomorphic ...
hep-ph/9411306
Alakabha Datta
Alakabha Datta
Form factors for Charmed Baryon Decays at order 1/m_c in the HQET limit
13 pages, latex, no figures
Phys.Lett. B349 (1995) 348-356
10.1016/0370-2693(95)00283-Q
UH-511-809-94
hep-ph
null
We study the vector and axial vector form factors in the heavy to light transitions in charmed baryon decays using HQET. We calculate the 1/m_c corrections to the form factors and show that these corrections can be significant. We also consider applications to semi-leptonic and hadronic decays of charmed baryons.
[ { "created": "Wed, 16 Nov 1994 02:26:27 GMT", "version": "v1" } ]
2009-10-28
[ [ "Datta", "Alakabha", "" ] ]
We study the vector and axial vector form factors in the heavy to light transitions in charmed baryon decays using HQET. We calculate the 1/m_c corrections to the form factors and show that these corrections can be significant. We also consider applications to semi-leptonic and hadronic decays of charmed baryons.
hep-ph/9206237
J. R. Cudell
J.R. Cudell and B. Margolis
Perturbative QCD Corrections to the Soft Pomeron
10 pages, McGill/92--24
null
null
null
hep-ph
null
We study the interface between soft and hard QCD at high energy and small momentum transfer. At LHC and SSC energies, we find that a cutoff BFKL equation leads one to expect a measurable perturbative component in traditionally soft processes. We show that the total cross section could become as large as 175 mb (122 m...
[ { "created": "Fri, 19 Jun 1992 19:28:25 GMT", "version": "v1" } ]
2007-05-23
[ [ "Cudell", "J. R.", "" ], [ "Margolis", "B.", "" ] ]
We study the interface between soft and hard QCD at high energy and small momentum transfer. At LHC and SSC energies, we find that a cutoff BFKL equation leads one to expect a measurable perturbative component in traditionally soft processes. We show that the total cross section could become as large as 175 mb (122 mb)...
1810.08257
Luca Rottoli
Luca Rottoli
Precision QCD at the LHC: from the structure of the proton to all-order resummations
208 pages, 47 figures, DPhil Thesis
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Experiments at the LHC are collecting a wealth of data with an unprecedented level of precision. As a consequence, the theoretical error is now starting to lag behind the experimental one, and a ceaseless effort is required to reduce the theory uncertainty to match the precision of the data. At hadron colliders, QCD ...
[ { "created": "Thu, 18 Oct 2018 19:39:05 GMT", "version": "v1" } ]
2018-10-22
[ [ "Rottoli", "Luca", "" ] ]
Experiments at the LHC are collecting a wealth of data with an unprecedented level of precision. As a consequence, the theoretical error is now starting to lag behind the experimental one, and a ceaseless effort is required to reduce the theory uncertainty to match the precision of the data. At hadron colliders, QCD pr...
1805.07367
Martin Beneke
M. Beneke, A. Broggio, C. Hasner, M. Vollmann
Energetic $\gamma$-rays from TeV scale dark matter annihilation resummed
16 pages, v2: corrections implemented as detailed in Erratum: Phys.Lett.B 810, 135831 (2020)
null
10.1016/j.physletb.2018.10.008
TUM-HEP-1139/18
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The annihilation cross section of TeV scale dark matter particles $\chi^0$ with electroweak charges into photons is affected by large quantum corrections due to Sudakov logarithms and the Sommerfeld effect. We calculate the semi-inclusive photon energy spectrum in $\chi^0\chi^0\to \gamma+X$ in the vicinity of the max...
[ { "created": "Fri, 18 May 2018 18:01:52 GMT", "version": "v1" }, { "created": "Wed, 16 Dec 2020 07:34:35 GMT", "version": "v2" } ]
2020-12-17
[ [ "Beneke", "M.", "" ], [ "Broggio", "A.", "" ], [ "Hasner", "C.", "" ], [ "Vollmann", "M.", "" ] ]
The annihilation cross section of TeV scale dark matter particles $\chi^0$ with electroweak charges into photons is affected by large quantum corrections due to Sudakov logarithms and the Sommerfeld effect. We calculate the semi-inclusive photon energy spectrum in $\chi^0\chi^0\to \gamma+X$ in the vicinity of the maxim...
1205.4024
Graeme Watt
G. Watt, R. S. Thorne
Study of Monte Carlo approach to experimental uncertainty propagation with MSTW 2008 PDFs
37 pages, 17 figures. v2: version published in JHEP. Supplementary material at http://mstwpdf.hepforge.org/random/
JHEP 1208:052,2012
10.1007/JHEP08(2012)052
CERN-PH-TH/2012-132; LCTS/2012-11
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the Monte Carlo approach to propagation of experimental uncertainties within the context of the established "MSTW 2008" global analysis of parton distribution functions (PDFs) of the proton at next-to-leading order in the strong coupling. We show that the Monte Carlo approach using replicas of the orig...
[ { "created": "Thu, 17 May 2012 20:00:02 GMT", "version": "v1" }, { "created": "Fri, 10 Aug 2012 15:08:00 GMT", "version": "v2" } ]
2012-08-13
[ [ "Watt", "G.", "" ], [ "Thorne", "R. S.", "" ] ]
We investigate the Monte Carlo approach to propagation of experimental uncertainties within the context of the established "MSTW 2008" global analysis of parton distribution functions (PDFs) of the proton at next-to-leading order in the strong coupling. We show that the Monte Carlo approach using replicas of the origin...
1911.08023
Liangliang Liu
Liang-Liang Liu, Xian-Wei Kang, Zhen-Yang Wang, Xin-Heng Guo
Rare $\Lambda_b \rightarrow \Lambda l^+ l^- $ decay in the Bethe-Salpeter equation approach
null
Chinese Physics C 2020, 44(8): 083107
10.1088/1674-1137/44/8/083107
null
hep-ph
http://creativecommons.org/publicdomain/zero/1.0/
We study the rare decays $\Lambda_b \rightarrow \Lambda l^+ l^-~(l=e,\mu, \tau)$ in the Bethe-Salpeter equation approach. We find that depending on the values of parameters in our model the branching ratio $Br(\Lambda_b \rightarrow \Lambda \mu^+ \mu^-)\times 10^{6}$ varies from $0.812$ to $1.445$ when $\kappa = 0.050...
[ { "created": "Tue, 19 Nov 2019 00:58:43 GMT", "version": "v1" }, { "created": "Wed, 20 Nov 2019 02:05:24 GMT", "version": "v2" }, { "created": "Sat, 23 Nov 2019 12:49:36 GMT", "version": "v3" } ]
2020-07-23
[ [ "Liu", "Liang-Liang", "" ], [ "Kang", "Xian-Wei", "" ], [ "Wang", "Zhen-Yang", "" ], [ "Guo", "Xin-Heng", "" ] ]
We study the rare decays $\Lambda_b \rightarrow \Lambda l^+ l^-~(l=e,\mu, \tau)$ in the Bethe-Salpeter equation approach. We find that depending on the values of parameters in our model the branching ratio $Br(\Lambda_b \rightarrow \Lambda \mu^+ \mu^-)\times 10^{6}$ varies from $0.812$ to $1.445$ when $\kappa = 0.050 \...
hep-ph/9912467
Jose Illana
Jose I. Illana
Resonant production of heavy MSSM Higgs bosons at the Photon Collider
1+22 pages, 8 figures; to appear in Proc. of 2nd joint ECFA/DESY Workshop on Physics Studies for a Future Linear Collider (one reference added)
null
null
DESY 99-167, LC-TH-2000-002
hep-ph
null
Assuming a light Higgs boson is discovered, its nature may remain unknown in case that no supersymmetric particles are found. The detection and study of heavier Higgs particles is then of great interest. For this purpose the Compton-collider option of a high energy e+e- linear collider is optimal both to produce Higg...
[ { "created": "Wed, 22 Dec 1999 15:29:59 GMT", "version": "v1" }, { "created": "Tue, 18 Jan 2000 17:13:51 GMT", "version": "v2" } ]
2007-05-23
[ [ "Illana", "Jose I.", "" ] ]
Assuming a light Higgs boson is discovered, its nature may remain unknown in case that no supersymmetric particles are found. The detection and study of heavier Higgs particles is then of great interest. For this purpose the Compton-collider option of a high energy e+e- linear collider is optimal both to produce Higgs ...
2309.17355
Thomas Becher
Thomas Becher and J\"urg Haag
Factorization and Resummation for Sequential Recombination Jet Cross Sections
25 pages, 5 figures
null
null
ZU-TH 61/23
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We extend the class of factorization theorems for non-global observables from fixed angular constraints to cross sections defined in terms of sequential jet clustering. The associated hard and soft functions depend not only on the directions of the hard partons, but also on their energy fractions. We derive the one-l...
[ { "created": "Fri, 29 Sep 2023 16:02:13 GMT", "version": "v1" } ]
2023-10-02
[ [ "Becher", "Thomas", "" ], [ "Haag", "Jürg", "" ] ]
We extend the class of factorization theorems for non-global observables from fixed angular constraints to cross sections defined in terms of sequential jet clustering. The associated hard and soft functions depend not only on the directions of the hard partons, but also on their energy fractions. We derive the one-loo...
1512.04281
Ulrich Ellwanger
Ulrich Ellwanger and Matias Rodriguez-Vazquez
Discovery Prospects of a Light Scalar in the NMSSM
20 pages, 16 Figs., reference added, LPT Orsay 15-97
null
10.1007/JHEP02(2016)096
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study a region in the NMSSM parameter space in which the mass of the SM-like Higgs boson is uplifted by ~4-17 GeV, allowing for stop masses and |A_t| <= 1 TeV alleviating the little fine tuning problem of the MSSM. An uplift of the mass of the SM-like Higgs boson is possible in two distinct regions in the NMSSM pa...
[ { "created": "Mon, 14 Dec 2015 12:37:52 GMT", "version": "v1" }, { "created": "Fri, 8 Jan 2016 16:15:40 GMT", "version": "v2" } ]
2016-03-23
[ [ "Ellwanger", "Ulrich", "" ], [ "Rodriguez-Vazquez", "Matias", "" ] ]
We study a region in the NMSSM parameter space in which the mass of the SM-like Higgs boson is uplifted by ~4-17 GeV, allowing for stop masses and |A_t| <= 1 TeV alleviating the little fine tuning problem of the MSSM. An uplift of the mass of the SM-like Higgs boson is possible in two distinct regions in the NMSSM para...
hep-ph/0307208
Anna Kulesza
A. Kulesza and W.J. Stirling
Non-perturbative effects and the resummed Higgs transverse momentum distribution at the LHC
22 pages, 10 figures
JHEP 0312 (2003) 056
10.1088/1126-6708/2003/12/056
BNL-HET-03/15, IPPP/03/40, DCPT/03/80
hep-ph
null
We investigate the form of the non-perturbative parameterization in both the impact parameter (b) space and transverse momentum (p_T) space resummation formalisms for the transverse momentum distribution of single massive bosons produced at hadron colliders. We propose to analyse data on Upsilon hadroproduction as a ...
[ { "created": "Wed, 16 Jul 2003 16:14:02 GMT", "version": "v1" } ]
2009-11-10
[ [ "Kulesza", "A.", "" ], [ "Stirling", "W. J.", "" ] ]
We investigate the form of the non-perturbative parameterization in both the impact parameter (b) space and transverse momentum (p_T) space resummation formalisms for the transverse momentum distribution of single massive bosons produced at hadron colliders. We propose to analyse data on Upsilon hadroproduction as a me...
1810.02522
Arianna Braconi
Arianna Braconi, Mu-Chun Chen, Geoffrey Gaswint
Revisiting Electroweak Phase Transition with Varying Yukawa Coupling Constants
10 pages, 5 figures
Phys. Rev. D 100, 015032 (2019)
10.1103/PhysRevD.100.015032
UCI-TR-2018-10
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We revisited the scenario of electroweak baryogenesis in the presence of large Yukawa couplings, in which it was found previously that a strongly first order electroweak phase transition can occur with the Higgs mass at its observed value of 125 GeV. Given the sensitivity of the running of the Higgs quartic coupling ...
[ { "created": "Fri, 5 Oct 2018 05:38:18 GMT", "version": "v1" } ]
2019-07-24
[ [ "Braconi", "Arianna", "" ], [ "Chen", "Mu-Chun", "" ], [ "Gaswint", "Geoffrey", "" ] ]
We revisited the scenario of electroweak baryogenesis in the presence of large Yukawa couplings, in which it was found previously that a strongly first order electroweak phase transition can occur with the Higgs mass at its observed value of 125 GeV. Given the sensitivity of the running of the Higgs quartic coupling on...
hep-ph/0106242
Zhang
Q.H. Zhang (McGill University)
Constraints on the size of the quark gluon plasma
new references of finite size effects on the observables are added
null
null
null
hep-ph nucl-ex nucl-th
null
We use simple entropy arguments to estimate the possible size of the QGP at the AGS and the SPS. We find that the possibility to form a large volume of QGP at the AGS or the SPS is very small. The size of the QGP at RHIC and the LHC is also predicted.
[ { "created": "Thu, 21 Jun 2001 16:04:25 GMT", "version": "v1" }, { "created": "Fri, 29 Jun 2001 22:16:52 GMT", "version": "v2" } ]
2007-05-23
[ [ "Zhang", "Q. H.", "", "McGill University" ] ]
We use simple entropy arguments to estimate the possible size of the QGP at the AGS and the SPS. We find that the possibility to form a large volume of QGP at the AGS or the SPS is very small. The size of the QGP at RHIC and the LHC is also predicted.
1206.4873
Frank Siegert
Frank Siegert, Stefan Hoeche, Frank Krauss, Marek Schonherr
W+n-jet predictions at NLO matched with a parton shower
4 pages, 2 figures. To appear in the proceedings of DIS 2012
null
null
SLAC-PUB-15097
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The MC@NLO method as implemented in the Sherpa MC generator is presented using the production of W-bosons in conjunction with up to three jets as an example. Corresponding results computed at next-to leading order in QCD and including parton shower corrections are compared to recent experimental data from the Large H...
[ { "created": "Thu, 21 Jun 2012 13:30:17 GMT", "version": "v1" } ]
2012-06-22
[ [ "Siegert", "Frank", "" ], [ "Hoeche", "Stefan", "" ], [ "Krauss", "Frank", "" ], [ "Schonherr", "Marek", "" ] ]
The MC@NLO method as implemented in the Sherpa MC generator is presented using the production of W-bosons in conjunction with up to three jets as an example. Corresponding results computed at next-to leading order in QCD and including parton shower corrections are compared to recent experimental data from the Large Had...
1308.5243
Levent Selbuz
Mariana Frank (Concordia University), Levent Selbuz (Concordia University and Ankara University)
Sterile neutrinos in U(1)' with R-parity Violation
28 pages, 2 figures, 4 tables, accepted for publication in PRD
null
10.1103/PhysRevD.88.055003
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivated by results from short-baseline neutrino oscillation data, we study neutrino masses and mixing in U(1)' supersymmetric models with R-parity breaking. Whether R-parity is broken spontaneous or through (effective) bilinear terms in the Lagrangian, the breaking terms induce mixing between the neutralinos and ne...
[ { "created": "Fri, 23 Aug 2013 20:47:26 GMT", "version": "v1" } ]
2015-06-17
[ [ "Frank", "Mariana", "", "Concordia University" ], [ "Selbuz", "Levent", "", "Concordia\n University and Ankara University" ] ]
Motivated by results from short-baseline neutrino oscillation data, we study neutrino masses and mixing in U(1)' supersymmetric models with R-parity breaking. Whether R-parity is broken spontaneous or through (effective) bilinear terms in the Lagrangian, the breaking terms induce mixing between the neutralinos and neut...
2012.01134
Li-Sheng Geng
Tian-Wei Wu, Ming-Zhu Liu, and Li-Sheng Geng
Excited $K$ meson, $K_c(4180)$, with hidden charm as a $D\bar{D}K$ bound state
6 pages, 3 figures
Phys. Rev. D 103, 031501 (2021)
10.1103/PhysRevD.103.L031501
null
hep-ph hep-ex hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivated by the recent discovery of two new states in the $B^+\rightarrow D^+D^-K^+$ decay by the LHCb Collaboration, we study the $D\bar{D}K$ three-body system by solving the Schr\"odinger equation with the Gaussian Expansion Method. We show that the $D\bar{D}K$ system can bind with quantum numbers $I(J^P)=\frac{1}...
[ { "created": "Wed, 2 Dec 2020 12:38:25 GMT", "version": "v1" } ]
2021-03-03
[ [ "Wu", "Tian-Wei", "" ], [ "Liu", "Ming-Zhu", "" ], [ "Geng", "Li-Sheng", "" ] ]
Motivated by the recent discovery of two new states in the $B^+\rightarrow D^+D^-K^+$ decay by the LHCb Collaboration, we study the $D\bar{D}K$ three-body system by solving the Schr\"odinger equation with the Gaussian Expansion Method. We show that the $D\bar{D}K$ system can bind with quantum numbers $I(J^P)=\frac{1}{2...
hep-ph/9812478
Johannes Bluemlein
J. Bl\"umlein and A. Tkabladze
Target Mass Corrections for Polarized Structure Functions and New Sum Rules
34 pages LATEX, 1 style file
Nucl.Phys.B553:427-464,1999
10.1016/S0550-3213(99)00289-8
DESY 98-181
hep-ph hep-ex
null
The target mass corrections are calculated for all structure functions of neutral and charged current deep inelastic scattering in lowest order in the coupling constant. Representations of the correction to the twist--2 and twist--3 contributions are derived both in Mellin-$n$ and $x$-space. The impact of the target ...
[ { "created": "Tue, 22 Dec 1998 17:19:36 GMT", "version": "v1" } ]
2008-11-26
[ [ "Blümlein", "J.", "" ], [ "Tkabladze", "A.", "" ] ]
The target mass corrections are calculated for all structure functions of neutral and charged current deep inelastic scattering in lowest order in the coupling constant. Representations of the correction to the twist--2 and twist--3 contributions are derived both in Mellin-$n$ and $x$-space. The impact of the target ma...
hep-ph/0108100
Michael Kachelriess
M. Kachelriess, A. Strumia, R. Tomas and J.W.F. Valle
SN1987A and the Status of Oscillation Solutions to the Solar Neutrino Problem (including an appendix discussing the NC and day/night data from SNO)
31 pages, 32 eps figures; 5 pages, 5 eps figures addendum in v2, discussing the recent SNO NC data and changes in SN parameter
Phys.Rev.D65:073016,2002
10.1103/PhysRevD.65.073016
CERN-TH/2001-219, IFIC/01-42, IFUP-TH/2001-25, MPI-PhT/2002-23
hep-ph astro-ph
null
We study neutrino oscillations and the level-crossing probability PLZ in power-law potential profiles A(r)\propto r^n. We give local and global adiabaticity conditions valid for all mixing angles theta and discuss different representations for PLZ. For the 1/r^3 profile typical of supernova envelopes we compare our a...
[ { "created": "Fri, 10 Aug 2001 19:33:58 GMT", "version": "v1" }, { "created": "Thu, 27 Jun 2002 12:12:16 GMT", "version": "v2" } ]
2009-09-25
[ [ "Kachelriess", "M.", "" ], [ "Strumia", "A.", "" ], [ "Tomas", "R.", "" ], [ "Valle", "J. W. F.", "" ] ]
We study neutrino oscillations and the level-crossing probability PLZ in power-law potential profiles A(r)\propto r^n. We give local and global adiabaticity conditions valid for all mixing angles theta and discuss different representations for PLZ. For the 1/r^3 profile typical of supernova envelopes we compare our ana...
2308.11439
Rinku Maji
Rinku Maji, Wan-Il Park
Supersymmetric $U(1)_{B-L}$ flat direction and NANOGrav 15 year data
10 pages, 2 figures, accepted for publication in JCAP
null
null
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show that, when connected with monopoles, the flat $D$-flat direction breaking the local $U(1)_{B-L}$ symmetry as an extension of the minimal supersymmetric standard model can be responsible for the signal of a stochastic gravitational wave background recently reported by NANOGrav collaborations, while naturally s...
[ { "created": "Tue, 22 Aug 2023 13:41:57 GMT", "version": "v1" }, { "created": "Tue, 12 Sep 2023 16:09:43 GMT", "version": "v2" }, { "created": "Thu, 14 Dec 2023 12:51:46 GMT", "version": "v3" } ]
2023-12-15
[ [ "Maji", "Rinku", "" ], [ "Park", "Wan-Il", "" ] ]
We show that, when connected with monopoles, the flat $D$-flat direction breaking the local $U(1)_{B-L}$ symmetry as an extension of the minimal supersymmetric standard model can be responsible for the signal of a stochastic gravitational wave background recently reported by NANOGrav collaborations, while naturally sat...
0811.3586
Eugene Levin
E. Levin, J. Miller (Tel Aviv Un), B. Z. Kopeliovich, Ivan Schmidt (Univ. Santa Maria)
Glauber - Gribov approach for DIS on nuclei in N=4 SYM
40pp.,9 figures in eps files
JHEP 0902:048,2009
10.1088/1126-6708/2009/02/048
TAUP-2889-08,USM-TH-241
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper the Glauber-Gribov approach for deep-inelastic scattering (DIS) with nuclei is developed in N=4 SYM. It is shown that the amplitude displays the same general properties, such as geometrical scaling, as is the case in the high density QCD approach. We found that the quantum effects leading to the gravito...
[ { "created": "Fri, 21 Nov 2008 17:29:15 GMT", "version": "v1" }, { "created": "Mon, 5 Jan 2009 16:33:43 GMT", "version": "v2" } ]
2014-11-18
[ [ "Levin", "E.", "", "Tel Aviv Un" ], [ "Miller", "J.", "", "Tel Aviv Un" ], [ "Kopeliovich", "B. Z.", "", "Univ. Santa Maria" ], [ "Schmidt", "Ivan", "", "Univ. Santa Maria" ] ]
In this paper the Glauber-Gribov approach for deep-inelastic scattering (DIS) with nuclei is developed in N=4 SYM. It is shown that the amplitude displays the same general properties, such as geometrical scaling, as is the case in the high density QCD approach. We found that the quantum effects leading to the graviton ...
hep-ph/0506220
Stefan Leupold
Stefan Leupold (Giessen Univ.)
Properties of the vector meson nonet at large N_c beyond the chiral limit
12 pages, strongly rewritten, more focussed on the central issue
Phys.Rev. D73 (2006) 085013
10.1103/PhysRevD.73.085013
null
hep-ph
null
Masses and especially coupling constants of the vector meson nonet are determined in the large-N_c limit, but beyond the chiral limit taking into account terms up to quadratic order in the Goldstone boson masses. With two input parameters five coupling constants for hadronic and dilepton decays are determined which a...
[ { "created": "Wed, 22 Jun 2005 19:12:02 GMT", "version": "v1" }, { "created": "Tue, 24 Jan 2006 18:44:03 GMT", "version": "v2" } ]
2009-11-11
[ [ "Leupold", "Stefan", "", "Giessen Univ." ] ]
Masses and especially coupling constants of the vector meson nonet are determined in the large-N_c limit, but beyond the chiral limit taking into account terms up to quadratic order in the Goldstone boson masses. With two input parameters five coupling constants for hadronic and dilepton decays are determined which agr...
0712.2212
Redamy Perez Ramos
Redamy Perez Ramos (MPI, Lapth, LPTHE), Francois Arleo (MPI, Lapth, LPTHE), Bruno Machet (MPI, Lapth, LPTHE)
Next-to-MLLA corrections to single inclusive kt-distributions and 2-particle correlations in a jet
35 pages and 39 figures. Comments, appendices, figures, references added. Version to appear in Phys. Rev. D
Phys.Rev.D78:014019,2008
10.1103/PhysRevD.78.014019
null
hep-ph hep-ex
null
The hadronic kt-spectrum inside a high energy jet is determined including corrections of relative magnitude O{\sqrt{\alpha_s}} with respect to the Modified Leading Logarithmic Approximation (MLLA), in the limiting spectrum approximation (assuming an infrared cut-off Q0 =Lambda_{QCD}) and beyond Q_0\ne\Lambda_{QCD}. T...
[ { "created": "Thu, 13 Dec 2007 18:43:41 GMT", "version": "v1" }, { "created": "Fri, 11 Apr 2008 07:00:15 GMT", "version": "v2" } ]
2011-03-23
[ [ "Ramos", "Redamy Perez", "", "MPI, Lapth, LPTHE" ], [ "Arleo", "Francois", "", "MPI, Lapth,\n LPTHE" ], [ "Machet", "Bruno", "", "MPI, Lapth, LPTHE" ] ]
The hadronic kt-spectrum inside a high energy jet is determined including corrections of relative magnitude O{\sqrt{\alpha_s}} with respect to the Modified Leading Logarithmic Approximation (MLLA), in the limiting spectrum approximation (assuming an infrared cut-off Q0 =Lambda_{QCD}) and beyond Q_0\ne\Lambda_{QCD}. The...
1911.09898
Toru Kojo
Gaoqing Cao, Toru Kojo
Quark fluctuations and anisotropic confinement in magnetic fields
5 pages, 3 figures
null
null
null
hep-ph hep-lat hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the string tension $\sigma$ of quantum chromodynamics (QCD) in external magnetic fields $B$ by combining the quasi-particle treatments for quarks with the collective treatments for gluons. We utilize the 1/Nc-expansion (Nc: number of colors) and the framework of Wilson's strong coupling expansion at long dis...
[ { "created": "Fri, 22 Nov 2019 07:32:34 GMT", "version": "v1" } ]
2019-11-25
[ [ "Cao", "Gaoqing", "" ], [ "Kojo", "Toru", "" ] ]
We study the string tension $\sigma$ of quantum chromodynamics (QCD) in external magnetic fields $B$ by combining the quasi-particle treatments for quarks with the collective treatments for gluons. We utilize the 1/Nc-expansion (Nc: number of colors) and the framework of Wilson's strong coupling expansion at long dista...
1101.0148
Andrea Banfi
Andrea Banfi
Event shapes at hadron colliders
5 pages, 4 figures. Based on the talks given at DIS2010, April 19-23, 2010, Firenze, Italy, and at "Physics at the LHC 2010", June 7-12, 2010, DESY, Hamburg, Germany
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present precision results for distributions in global event shapes that can be measured at hadron colliders within experimental limitations. These predictions are obtained by combining exact next-to-leading order (NLO) with the all-order resummation of large logarithms of soft and collinear origin. We then discuss...
[ { "created": "Thu, 30 Dec 2010 20:03:40 GMT", "version": "v1" } ]
2011-01-04
[ [ "Banfi", "Andrea", "" ] ]
We present precision results for distributions in global event shapes that can be measured at hadron colliders within experimental limitations. These predictions are obtained by combining exact next-to-leading order (NLO) with the all-order resummation of large logarithms of soft and collinear origin. We then discuss h...
2401.04840
Yannis Georis
Yannis Georis
Recent developments in testable leptogenesis
6 pages, 3 figures. Contribution to Matter To The Deepest: Recent Developments In Physics Of Fundamental Interactions XLV International Conference of Theoretical Physics, 2023
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Low-scale leptogenesis is an attractive explanation for the observed baryon asymmetry of our universe that can be tested at a variety of laboratory experiments. In these proceedings, we review some recent advances in this field. In particular, we find that the viable parameter space is strongly enhanced, compared to ...
[ { "created": "Tue, 9 Jan 2024 22:20:04 GMT", "version": "v1" } ]
2024-01-11
[ [ "Georis", "Yannis", "" ] ]
Low-scale leptogenesis is an attractive explanation for the observed baryon asymmetry of our universe that can be tested at a variety of laboratory experiments. In these proceedings, we review some recent advances in this field. In particular, we find that the viable parameter space is strongly enhanced, compared to th...
1002.0274
Maxim Perelstein
Maxim Perelstein
Introduction to Collider Physics
47 pages, 34 figures, contributed to TASI-09 proceedings. One reference added in v2
null
10.1142/9789814327183_0008
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This is a set of four lectures presented at the Theoretical Advanced Study Institute (TASI-09) in June 2009. The goal of the lectures is to introduce students to some of the basic ideas and tools required for theoretical analysis of collider data. Several examples of Standard Model processes at electron-positron and ...
[ { "created": "Mon, 1 Feb 2010 15:29:46 GMT", "version": "v1" }, { "created": "Wed, 25 Aug 2010 18:47:56 GMT", "version": "v2" } ]
2017-08-23
[ [ "Perelstein", "Maxim", "" ] ]
This is a set of four lectures presented at the Theoretical Advanced Study Institute (TASI-09) in June 2009. The goal of the lectures is to introduce students to some of the basic ideas and tools required for theoretical analysis of collider data. Several examples of Standard Model processes at electron-positron and ha...
hep-ph/0104067
Francois Gelis
F. Gelis (BNL)
Photon production by a quark gluon plasma
Based on talks given at Quark Matter 2001, January 2001, Stony Brook, USA and at 36th Rencontres de Moriond, March 2001, Les Arcs, France (4 pages LaTeX document, 3 postscript figures)
Nucl.Phys. A698 (2002) 436-439
10.1016/S0375-9474(01)01398-7
null
hep-ph
null
In this talk, I review the status of the calculation of the photon production rate in a hot quark-gluon plasma. Particular emphasis is given to the discussion of the various length scales of the problem.
[ { "created": "Fri, 6 Apr 2001 15:12:46 GMT", "version": "v1" }, { "created": "Mon, 7 May 2001 15:37:25 GMT", "version": "v2" } ]
2009-11-07
[ [ "Gelis", "F.", "", "BNL" ] ]
In this talk, I review the status of the calculation of the photon production rate in a hot quark-gluon plasma. Particular emphasis is given to the discussion of the various length scales of the problem.
1306.0344
Gautam Bhattacharyya
Gautam Bhattacharyya, Anirban Kundu, Tirtha Sankar Ray
Minimal supersymmetry confronts $R_b$, $A^b_{FB}$ and $m_h$
10 pages, 4 figures; v4: substantially updated following the revised results on higher loop estimate of R_b(SM) in the errata published by Freitas and Huang in arXiv:1205.0299 [hep-ph] v3. Final version accepted for publication in J Phys G
null
10.1088/0954-3899/41/3/035002
SINP/TNP/2013/07
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the impact of the measurements of three sets of observables on the parameter space of the constrained minimal supersymmetric Standard Model (cMSSM), its slightly general variant, the non-universal scalar model (NUSM), and some selected benchmark points of the 19-parameter phenomenological MSSM (pMSSM): ($i$)...
[ { "created": "Mon, 3 Jun 2013 09:38:59 GMT", "version": "v1" }, { "created": "Tue, 9 Jul 2013 11:10:06 GMT", "version": "v2" }, { "created": "Tue, 3 Sep 2013 10:03:54 GMT", "version": "v3" }, { "created": "Thu, 2 Jan 2014 12:53:53 GMT", "version": "v4" } ]
2015-06-16
[ [ "Bhattacharyya", "Gautam", "" ], [ "Kundu", "Anirban", "" ], [ "Ray", "Tirtha Sankar", "" ] ]
We study the impact of the measurements of three sets of observables on the parameter space of the constrained minimal supersymmetric Standard Model (cMSSM), its slightly general variant, the non-universal scalar model (NUSM), and some selected benchmark points of the 19-parameter phenomenological MSSM (pMSSM): ($i$) t...
hep-ph/9606482
A. A. Pivovarov
A.A.Pivovarov
Mixing of neutral B mesons and factorization
LaTeX file, 7 pages
null
null
Preprint INR 924/96
hep-ph
null
A brief review of checking the factorization hypothesis for matrix element of $B^0 - \bar B^0$ mixing within operator product expansion and QCD sum rules is given. Both perturbative and power corrections are considered.
[ { "created": "Sat, 29 Jun 1996 14:08:39 GMT", "version": "v1" } ]
2007-05-23
[ [ "Pivovarov", "A. A.", "" ] ]
A brief review of checking the factorization hypothesis for matrix element of $B^0 - \bar B^0$ mixing within operator product expansion and QCD sum rules is given. Both perturbative and power corrections are considered.
2302.10965
Vedran Brdar
Vedran Brdar, Andr\'e de Gouv\^ea, Ying-Ying Li, Pedro A. N. Machado
The Neutrino Magnetic Moment Portal and Supernovae: New Constraints and Multimessenger Opportunities
8 pages, 6 figures
Phys. Rev. D 107, 073005 (2023)
10.1103/PhysRevD.107.073005
FERMILAB-PUB-23-063-T, NUHEP-TH/23-01, CERN-TH-2023-024, USTC-ICTS/PCFT-23-06
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We scrutinize the hypothesis that gauge singlet fermions -- sterile neutrinos -- interact with Standard Model particles through the transition magnetic moment portal. These interactions lead to the production of sterile neutrinos in supernovae followed by their decay into photons and active neutrinos which can be det...
[ { "created": "Tue, 21 Feb 2023 19:49:43 GMT", "version": "v1" }, { "created": "Fri, 21 Apr 2023 15:09:38 GMT", "version": "v2" } ]
2023-04-24
[ [ "Brdar", "Vedran", "" ], [ "de Gouvêa", "André", "" ], [ "Li", "Ying-Ying", "" ], [ "Machado", "Pedro A. N.", "" ] ]
We scrutinize the hypothesis that gauge singlet fermions -- sterile neutrinos -- interact with Standard Model particles through the transition magnetic moment portal. These interactions lead to the production of sterile neutrinos in supernovae followed by their decay into photons and active neutrinos which can be detec...
1709.07415
Roger-Jos\'e Hern\'andez-Pinto
R. J. Hern\'andez-Pinto, M. Epele, D. de Florian, R. Sassot and M. Stratmann
Global extraction of the parton-to-kaon fragmentation functions at NLO in QCD
6 pages, 4 figures, To be published in Journal of Physics Conference Series (IOP). Proceedings of the XXXI Annual Meeting of the Division of Particles and Fields of the Mexican Physical Society
null
10.1088/1742-6596/912/1/012043
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this document, we present the global QCD analysis of parton-to-kaon fragmentation functions at next-to-leading order accuracy using the latest experimental information on single-inclusive kaon production in electron-positron annihilation, lepton-nucleon deep-inelastic scattering, and proton-proton collisions. An e...
[ { "created": "Thu, 21 Sep 2017 16:58:54 GMT", "version": "v1" } ]
2017-11-22
[ [ "Hernández-Pinto", "R. J.", "" ], [ "Epele", "M.", "" ], [ "de Florian", "D.", "" ], [ "Sassot", "R.", "" ], [ "Stratmann", "M.", "" ] ]
In this document, we present the global QCD analysis of parton-to-kaon fragmentation functions at next-to-leading order accuracy using the latest experimental information on single-inclusive kaon production in electron-positron annihilation, lepton-nucleon deep-inelastic scattering, and proton-proton collisions. An ext...
1602.00552
Abhaya Swain
Partha Konar and Abhaya Kumar Swain
Reconstructing semi-invisible events in resonant tau pair production from Higgs
14 pages, 3 figures; addition of text and footnote for further clarification, Figure 3 modified to append the further improvement of efficiency in selected events; version accepted for publication in Phys. Lett. B
Phys.Lett.B757:211-215,2016
10.1016/j.physletb.2016.03.070
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the possibility of utilising the constrained mass variable, $M_{2Cons}$, in reconstructing the semi-invisible events originated from a resonant production at the LHC. While this proposal is effective for any similar antler type production mechanism, here we demonstrate with potentially interesting scenario, ...
[ { "created": "Mon, 1 Feb 2016 15:02:15 GMT", "version": "v1" }, { "created": "Fri, 25 Mar 2016 12:48:45 GMT", "version": "v2" } ]
2016-04-12
[ [ "Konar", "Partha", "" ], [ "Swain", "Abhaya Kumar", "" ] ]
We study the possibility of utilising the constrained mass variable, $M_{2Cons}$, in reconstructing the semi-invisible events originated from a resonant production at the LHC. While this proposal is effective for any similar antler type production mechanism, here we demonstrate with potentially interesting scenario, wh...
2308.12862
Cem Salih Un
Cem Salih Un
Low Fine-Tuning with Heavy Higgsinos in Yukawa Unified SUSY GUTs
null
Turk.J.Phys. 48 (2024) 1, 1-27
10.55730/1300-0101.2753
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The work presented considers a class of minimally constructed Yukawa unified SUSY GUTs - NUHM2 - and explore their implications when their soft supersymmetry breaking Lagrangian is generalized by the non-holomorphic terms which provide extra contributions to the Higgsino mass and couple the supersymmetric scalar fiel...
[ { "created": "Thu, 24 Aug 2023 15:34:15 GMT", "version": "v1" }, { "created": "Thu, 29 Feb 2024 11:49:13 GMT", "version": "v2" } ]
2024-03-01
[ [ "Un", "Cem Salih", "" ] ]
The work presented considers a class of minimally constructed Yukawa unified SUSY GUTs - NUHM2 - and explore their implications when their soft supersymmetry breaking Lagrangian is generalized by the non-holomorphic terms which provide extra contributions to the Higgsino mass and couple the supersymmetric scalar fields...
1304.4230
Viraf Mehta
Alon E. Faraggi and Viraf M. Mehta
Proton Stability, Gauge Coupling Unification and a Light $Z^\prime$ in Heterotic-string Models
20 pages, 2 figures, references added, minor corrections -- accepted for publication in PRD
null
10.1103/PhysRevD.88.025006
LTH--974
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore the phenomenological viability of a light Z' in heterotic-string models, whose existence has been motivated by proton stability arguments. A class of quasi-realistic string models that produce such a viable Z' are the Left-Right Symmetric (LRS) heterotic-string models in the free fermionic formulation. A k...
[ { "created": "Mon, 15 Apr 2013 20:00:02 GMT", "version": "v1" }, { "created": "Tue, 11 Jun 2013 21:23:55 GMT", "version": "v2" } ]
2013-08-09
[ [ "Faraggi", "Alon E.", "" ], [ "Mehta", "Viraf M.", "" ] ]
We explore the phenomenological viability of a light Z' in heterotic-string models, whose existence has been motivated by proton stability arguments. A class of quasi-realistic string models that produce such a viable Z' are the Left-Right Symmetric (LRS) heterotic-string models in the free fermionic formulation. A key...
2011.02157
Gaia Lanfranchi
Gaia Lanfranchi and Maxim Pospelov and Philip Schuster
The Search for Feebly-Interacting Particles
42 pages, 9 figures
null
10.1146/annurev-nucl-102419-055056
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
At the dawn of a new decade, particle physics faces the challenge of explaining the mystery of dark matter, the origin of matter over antimatter in the Universe, the apparent fine-tuning of the electro-weak scale, and many other aspects of fundamental physics. Perhaps the most striking frontier to emerge in the searc...
[ { "created": "Wed, 4 Nov 2020 07:08:49 GMT", "version": "v1" } ]
2020-11-05
[ [ "Lanfranchi", "Gaia", "" ], [ "Pospelov", "Maxim", "" ], [ "Schuster", "Philip", "" ] ]
At the dawn of a new decade, particle physics faces the challenge of explaining the mystery of dark matter, the origin of matter over antimatter in the Universe, the apparent fine-tuning of the electro-weak scale, and many other aspects of fundamental physics. Perhaps the most striking frontier to emerge in the search ...
hep-ph/9411417
Murman Margvelashvili
V.Kartvelishvili and M.Margvelashvili
On Instanton Contributions to the tau Hadronic Width
6 pages, Latex file
Phys.Lett. B345 (1995) 161-165
10.1016/0370-2693(94)01616-K
INFN-FE 08-94
hep-ph
null
Comparing the results of finite energy and Borel transformed sum rules for the difference of vector and axial vector current correlators we evaluate the instanton contributions to the $\tau$ hadronic width. In contrast to an explicit theoretical calculation we find that the instanton contributions to the $\tau$ hadro...
[ { "created": "Mon, 28 Nov 1994 18:55:15 GMT", "version": "v1" } ]
2009-10-28
[ [ "Kartvelishvili", "V.", "" ], [ "Margvelashvili", "M.", "" ] ]
Comparing the results of finite energy and Borel transformed sum rules for the difference of vector and axial vector current correlators we evaluate the instanton contributions to the $\tau$ hadronic width. In contrast to an explicit theoretical calculation we find that the instanton contributions to the $\tau$ hadroni...
2306.12412
Philipp B\"oer
Philipp B\"oer and Patrick Hager
On the gauge-invariance of SCET beyond leading power
17 pages, 2 figures, minor text changes, matches journal version
null
10.1007/JHEP08(2023)197
MITP-23-028
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We point out that the gauge-invariance of the subleading Lagrangian of soft-collinear effective theory is realised in an intricate way through momentum-conservation violating contributions. Although these terms are disregarded in diagrammatic calculations, the gauge invariance of any physical transition amplitude is ...
[ { "created": "Wed, 21 Jun 2023 17:50:26 GMT", "version": "v1" }, { "created": "Mon, 28 Aug 2023 18:30:48 GMT", "version": "v2" } ]
2023-09-01
[ [ "Böer", "Philipp", "" ], [ "Hager", "Patrick", "" ] ]
We point out that the gauge-invariance of the subleading Lagrangian of soft-collinear effective theory is realised in an intricate way through momentum-conservation violating contributions. Although these terms are disregarded in diagrammatic calculations, the gauge invariance of any physical transition amplitude is pr...
1704.08593
Eduardo Rojas
Fredy F. Mojica, Carlos E. Vera, Eduardo Rojas, Bruno El-Bennich
Mass spectrum and decay constants of radially excited vector mesons
null
Phys. Rev. D 96, 014012 (2017)
10.1103/PhysRevD.96.014012
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the masses and weak decay constants of flavorless ground and radially excited $J^P=1^-$ mesons and the corresponding quantities for the K^*, within a Poincar\'e covariant continuum framework based on the Bethe-Salpeter equation. We use in both, the quark's gap equation and the meson bound-state equation,...
[ { "created": "Thu, 27 Apr 2017 14:21:44 GMT", "version": "v1" } ]
2017-07-26
[ [ "Mojica", "Fredy F.", "" ], [ "Vera", "Carlos E.", "" ], [ "Rojas", "Eduardo", "" ], [ "El-Bennich", "Bruno", "" ] ]
We calculate the masses and weak decay constants of flavorless ground and radially excited $J^P=1^-$ mesons and the corresponding quantities for the K^*, within a Poincar\'e covariant continuum framework based on the Bethe-Salpeter equation. We use in both, the quark's gap equation and the meson bound-state equation, a...
hep-ph/0302244
Michael Rauch
Manuel Drees and Michael Rauch
Complete 1-Loop Calculation of the T-violating D-Parameter in Neutron Decay in the MSSM
24 pages, 14 figures; Improved scanning of parameter space leads to some numerical change, but the basic conclusion remains unchanged
Eur.Phys.J.C29:573-585,2003
10.1140/epjc/s2003-01247-8
MPI-PhT/2003-09, TUM-HEP-500/03
hep-ph
null
We investigate the violation of time reversal invariance in the decay of the free neutron in the framework of the Minimal Supersymmetric Standard Model (MSSM). The coefficient of the triple product of the neutron spin and the momenta of electron and neutrino, the so called D parameter, is computed at one loop order i...
[ { "created": "Wed, 26 Feb 2003 15:58:00 GMT", "version": "v1" }, { "created": "Tue, 27 May 2003 13:38:06 GMT", "version": "v2" } ]
2014-11-17
[ [ "Drees", "Manuel", "" ], [ "Rauch", "Michael", "" ] ]
We investigate the violation of time reversal invariance in the decay of the free neutron in the framework of the Minimal Supersymmetric Standard Model (MSSM). The coefficient of the triple product of the neutron spin and the momenta of electron and neutrino, the so called D parameter, is computed at one loop order inc...
hep-ph/0604118
Shaaban Khalil
Shaaban Khalil
Supersymmetric contributions to B -> D K and the determination of angle \gamma
20 pages
Eur.Phys.J.C50:35-46,2007
10.1140/epjc/s10052-006-0188-0
null
hep-ph
null
We analyze supersymmetric contributions to B^- -> D^0 K^- and B^- ->\bar{D}^0 K^- processes. We investigate the possibility that supersymmetric CP violating phases can affect our determination for the angle \gamma in the unitary triangle of Cabibbo-Kobayashi-Maskaw mixing matrix. We calculate the gluino and chargino ...
[ { "created": "Thu, 13 Apr 2006 11:37:08 GMT", "version": "v1" }, { "created": "Sun, 21 May 2006 20:47:58 GMT", "version": "v2" } ]
2008-11-26
[ [ "Khalil", "Shaaban", "" ] ]
We analyze supersymmetric contributions to B^- -> D^0 K^- and B^- ->\bar{D}^0 K^- processes. We investigate the possibility that supersymmetric CP violating phases can affect our determination for the angle \gamma in the unitary triangle of Cabibbo-Kobayashi-Maskaw mixing matrix. We calculate the gluino and chargino co...
1904.06085
Xin-Xin Ma
Li-Min Gu, Hai-Bo Li, Xin-Xin Ma and Mao-Zhi Yang
Study of the electromagnetic Dalitz decays $\psi(\Upsilon) \to \eta_{c}(\eta_{b}) l^{+} l^{-}$
null
Phys. Rev. D 100, 016018 (2019)
10.1103/PhysRevD.100.016018
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the electromagnetic Dalitz (EM) decays, $\psi \to \eta_{c} l^{+} l^{-}$ and $\Upsilon \to \eta_{b} l^{+} l^{-}$ ($l = e$ or $\mu$), in which the lepton pair comes from the virtual photon emitted by the M1 transition from $c\bar{c}$ ($b\bar{b}$) spin triplet state to the spin singlet state. We estimate the pa...
[ { "created": "Fri, 12 Apr 2019 07:53:52 GMT", "version": "v1" }, { "created": "Thu, 8 Aug 2019 05:35:40 GMT", "version": "v2" } ]
2019-08-09
[ [ "Gu", "Li-Min", "" ], [ "Li", "Hai-Bo", "" ], [ "Ma", "Xin-Xin", "" ], [ "Yang", "Mao-Zhi", "" ] ]
We study the electromagnetic Dalitz (EM) decays, $\psi \to \eta_{c} l^{+} l^{-}$ and $\Upsilon \to \eta_{b} l^{+} l^{-}$ ($l = e$ or $\mu$), in which the lepton pair comes from the virtual photon emitted by the M1 transition from $c\bar{c}$ ($b\bar{b}$) spin triplet state to the spin singlet state. We estimate the part...
hep-ph/0002209
Martin Savage
Silas R. Beane, Paulo F. Bedaque and Martin J. Savage
Meson Masses in High Density QCD
13 pages, 3 figures, latex
Phys.Lett.B483:131-138,2000
10.1016/S0370-2693(00)00606-7
NT@UW-00-03, INT00-83
hep-ph nucl-th
null
The low-energy effective theories for the two- and three-flavor color-superconductors arising in the high density limit of QCD are discussed. Using an effective field theory to describe quarks near the fermi surface, we compute the masses of the pseudo-Goldstone bosons that dominate the low-momentum dynamics of these...
[ { "created": "Fri, 18 Feb 2000 23:56:19 GMT", "version": "v1" } ]
2014-11-17
[ [ "Beane", "Silas R.", "" ], [ "Bedaque", "Paulo F.", "" ], [ "Savage", "Martin J.", "" ] ]
The low-energy effective theories for the two- and three-flavor color-superconductors arising in the high density limit of QCD are discussed. Using an effective field theory to describe quarks near the fermi surface, we compute the masses of the pseudo-Goldstone bosons that dominate the low-momentum dynamics of these s...
1704.05213
Stephen Lonsdale
Stephen J. Lonsdale, Martine Schroor, Raymond R. Volkas
Asymmetric Dark Matter and the hadronic spectra of hidden QCD
22 pages, 11 figures. Additional discussion, matches published version
Phys. Rev. D 96, 055027 (2017)
10.1103/PhysRevD.96.055027
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The idea that dark matter may be a composite state of a hidden nonabelian gauge sector has received great attention in recent years. Frameworks such as asymmetric dark matter motivate the idea that dark matter may have similar mass to the proton, while mirror matter and $G \times G$ grand unified theories provide rat...
[ { "created": "Tue, 18 Apr 2017 06:33:55 GMT", "version": "v1" }, { "created": "Wed, 20 Sep 2017 02:57:28 GMT", "version": "v2" } ]
2017-09-21
[ [ "Lonsdale", "Stephen J.", "" ], [ "Schroor", "Martine", "" ], [ "Volkas", "Raymond R.", "" ] ]
The idea that dark matter may be a composite state of a hidden nonabelian gauge sector has received great attention in recent years. Frameworks such as asymmetric dark matter motivate the idea that dark matter may have similar mass to the proton, while mirror matter and $G \times G$ grand unified theories provide ratio...
2302.12214
C. Pallis
C. Pallis
Inflection-Point Sgoldstino Inflation in no-Scale Supergravity
Published Version
null
10.1016/j.physletb.2023.138018
null
hep-ph astro-ph.CO hep-th
http://creativecommons.org/licenses/by/4.0/
We propose a modification of no-scale supergravity models which incorporates sgoldstino stabilization and supersymmetry (SUSY) breaking with a tunable cosmological constant by introducing a Kahler potential which yields a kinetic pole of order one. The resulting scalar potential may develop an inflection point, close...
[ { "created": "Thu, 23 Feb 2023 18:19:54 GMT", "version": "v1" }, { "created": "Fri, 9 Jun 2023 13:13:31 GMT", "version": "v2" }, { "created": "Thu, 10 Aug 2023 09:54:35 GMT", "version": "v3" } ]
2023-08-11
[ [ "Pallis", "C.", "" ] ]
We propose a modification of no-scale supergravity models which incorporates sgoldstino stabilization and supersymmetry (SUSY) breaking with a tunable cosmological constant by introducing a Kahler potential which yields a kinetic pole of order one. The resulting scalar potential may develop an inflection point, close t...