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1006.0003
Johannes Haller
Johannes Haller (U Hamburg), Gfitter group
The electroweak fit and constraints on new physics
Talk given at the 45th Rencontres de Moriond, La Thuile, Italy, March 2010; 6 pages; 8 figures
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The global electroweak fit of the Standard Model (SM) with Gfitter can be used to constrain yet unknown SM parameters, such as the Higgs mass, but also physics beyond the SM (BSM) via the formalism of oblique parameters. This paper presents updated results of the Gfitter SM fit using the latest available electroweak ...
[ { "created": "Mon, 31 May 2010 20:00:22 GMT", "version": "v1" } ]
2010-06-02
[ [ "Haller", "Johannes", "", "U Hamburg" ], [ "group", "Gfitter", "" ] ]
The global electroweak fit of the Standard Model (SM) with Gfitter can be used to constrain yet unknown SM parameters, such as the Higgs mass, but also physics beyond the SM (BSM) via the formalism of oblique parameters. This paper presents updated results of the Gfitter SM fit using the latest available electroweak pr...
1306.2432
Hannu Paukkunen
Hannu Paukkunen and Carlos A. Salgado
Neutrino-nucleus DIS data and their consistency with nuclear PDFs
A transcription of the talk given in XXI International Workshop on Deep-Inelastic Scattering and Related Subjects, Marseilles, France
null
null
null
hep-ph hep-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this talk, we discuss the compatibility of different deeply inelastic neutrino-nucleus data sets and the universal nuclear PDFs. This is an issue that has lately been investigated by different groups but the conclusions have been surprisingly contradictory. While some studies have found a good overall agreement be...
[ { "created": "Tue, 11 Jun 2013 06:27:17 GMT", "version": "v1" } ]
2013-06-12
[ [ "Paukkunen", "Hannu", "" ], [ "Salgado", "Carlos A.", "" ] ]
In this talk, we discuss the compatibility of different deeply inelastic neutrino-nucleus data sets and the universal nuclear PDFs. This is an issue that has lately been investigated by different groups but the conclusions have been surprisingly contradictory. While some studies have found a good overall agreement betw...
2403.02461
Isabella Masina
Isabella Masina and Mariano Quiros
Electroweak metastability and Higgs inflation
v1: 25 pages, 7 figures; v2: 30 pages, 9 figures, text and discussion improved
null
null
null
hep-ph astro-ph.CO
http://creativecommons.org/licenses/by/4.0/
Extrapolating the Standard Model Higgs potential at high energies, we study the barrier between the electroweak and Planck scale minima. The barrier arises by taking the central values of the relevant experimental inputs, that is the strong coupling constant and the top quark and Higgs masses. We then extend the Stan...
[ { "created": "Mon, 4 Mar 2024 20:21:08 GMT", "version": "v1" }, { "created": "Tue, 26 Mar 2024 15:56:34 GMT", "version": "v2" } ]
2024-03-27
[ [ "Masina", "Isabella", "" ], [ "Quiros", "Mariano", "" ] ]
Extrapolating the Standard Model Higgs potential at high energies, we study the barrier between the electroweak and Planck scale minima. The barrier arises by taking the central values of the relevant experimental inputs, that is the strong coupling constant and the top quark and Higgs masses. We then extend the Standa...
hep-ph/0310097
Zhenjun Xiao
Zhenjun Xiao and Ci Zhuang
Exclusive $B \to (K^*, \rho) \gamma$ decays in the general two-Higgs-doublet models
Revtex, 38 pages with 14 eps figures, minor corrections
Eur.Phys.J. C33 (2004) 349-368
10.1140/epjc/s2004-01592-0
NJNU-TH-2003-17
hep-ph
null
By employing the QCD factorization approach, we calculated the next-to-leading order new physics contributions to the branching ratios, CP asymmetries, isospin and U-spin symmetry breaking of the exclusive decays $B \to V \gamma$ ($V=K^*, \rho$), induced by the charged Higgs penguins in the general two-Higgs-doublet ...
[ { "created": "Wed, 8 Oct 2003 06:26:16 GMT", "version": "v1" }, { "created": "Fri, 7 Nov 2003 02:53:54 GMT", "version": "v2" } ]
2009-11-10
[ [ "Xiao", "Zhenjun", "" ], [ "Zhuang", "Ci", "" ] ]
By employing the QCD factorization approach, we calculated the next-to-leading order new physics contributions to the branching ratios, CP asymmetries, isospin and U-spin symmetry breaking of the exclusive decays $B \to V \gamma$ ($V=K^*, \rho$), induced by the charged Higgs penguins in the general two-Higgs-doublet mo...
1503.02003
Daniel Pitonyak
K. Kanazawa, A. Metz, D. Pitonyak, M. Schlegel
Single-spin asymmetries in the leptoproduction of transversely polarized $\Lambda$ hyperons
12 pages, 1 figure, reference added, version to appear in Phys. Lett. B
null
10.1016/j.physletb.2015.04.011
RBRC-1112
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze single-spin asymmetries (SSAs) in the leptoproduction of transversely polarized $\Lambda$ hyperons within the collinear twist-3 formalism. We calculate both the distribution and fragmentation terms in two different gauges (lightcone and Feynman) and show that the results are identical. This is the first ti...
[ { "created": "Fri, 6 Mar 2015 16:20:54 GMT", "version": "v1" }, { "created": "Fri, 17 Apr 2015 21:24:32 GMT", "version": "v2" } ]
2015-05-20
[ [ "Kanazawa", "K.", "" ], [ "Metz", "A.", "" ], [ "Pitonyak", "D.", "" ], [ "Schlegel", "M.", "" ] ]
We analyze single-spin asymmetries (SSAs) in the leptoproduction of transversely polarized $\Lambda$ hyperons within the collinear twist-3 formalism. We calculate both the distribution and fragmentation terms in two different gauges (lightcone and Feynman) and show that the results are identical. This is the first time...
1908.10881
Josef Pradler
Rouven Essig, Josef Pradler, Mukul Sholapurkar, Tien-Tien Yu
On the relation between Migdal effect and dark matter-electron scattering in isolated atoms and semiconductors
5 pages, 3 figures; journal version (with longer abstract), results unchanged
Phys. Rev. Lett. 124, 021801 (2020)
10.1103/PhysRevLett.124.021801
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A key strategy for the direct detection of sub-GeV dark matter is to search for small ionization signals. These can arise from dark matter-electron scattering or when the dark matter-nucleus scattering process is accompanied by a "Migdal" electron. We show that the theoretical descriptions of both processes are close...
[ { "created": "Wed, 28 Aug 2019 18:00:11 GMT", "version": "v1" }, { "created": "Mon, 3 Feb 2020 09:14:30 GMT", "version": "v2" } ]
2020-02-04
[ [ "Essig", "Rouven", "" ], [ "Pradler", "Josef", "" ], [ "Sholapurkar", "Mukul", "" ], [ "Yu", "Tien-Tien", "" ] ]
A key strategy for the direct detection of sub-GeV dark matter is to search for small ionization signals. These can arise from dark matter-electron scattering or when the dark matter-nucleus scattering process is accompanied by a "Migdal" electron. We show that the theoretical descriptions of both processes are closely...
hep-ph/9607247
A. A. Pivovarov
N.V.Krasnikov and A.A.Pivovarov
Infrared modified analysis for the $\tau$ lepton width
8 pages, LaTeX, one table
null
null
Preprint INR 925/96
hep-ph
null
We argue that accounting for higher order corrections in QCD by integrating a running coupling constant through an infrared region can be most easily done with making use of a scheme without the Landau pole. Within this approach the entire ambiguity of the answer is identical to that of the choice of renormalization ...
[ { "created": "Fri, 5 Jul 1996 08:52:54 GMT", "version": "v1" } ]
2007-05-23
[ [ "Krasnikov", "N. V.", "" ], [ "Pivovarov", "A. A.", "" ] ]
We argue that accounting for higher order corrections in QCD by integrating a running coupling constant through an infrared region can be most easily done with making use of a scheme without the Landau pole. Within this approach the entire ambiguity of the answer is identical to that of the choice of renormalization sc...
hep-ph/0005141
Blazenka Melic
J.G. Korner and B. Melic
Exclusive-Inclusive Ratio of Semileptonic Lambda_b-Decays
RevTeX, 18 pages, 4 figures
Phys.Rev. D62 (2000) 074008
10.1103/PhysRevD.62.074008
MZ-TH/99-12, IRB-TH-3/00
hep-ph
null
We present theoretical evidence that the exclusive/inclusive ratio of semileptonic $\Lambda_b$-decays exceeds that of semileptonic B-decays where the experimental exclusive/inclusive ratio amounts to about 66%. We start from the observation that the spectator quark model provides a lower bound on the leading order Is...
[ { "created": "Mon, 15 May 2000 15:34:52 GMT", "version": "v1" } ]
2016-09-06
[ [ "Korner", "J. G.", "" ], [ "Melic", "B.", "" ] ]
We present theoretical evidence that the exclusive/inclusive ratio of semileptonic $\Lambda_b$-decays exceeds that of semileptonic B-decays where the experimental exclusive/inclusive ratio amounts to about 66%. We start from the observation that the spectator quark model provides a lower bound on the leading order Isgu...
hep-ph/9408397
Stephen Parke, Fermilab
Stephen Parke
Status of the Solar Neutrino Puzzle
Latex, 8 pages + 4 uuencoded figures, minor changes made, FERMILAB-PUB/273-T
Phys.Rev.Lett.74:839-841,1995
10.1103/PhysRevLett.74.839
null
hep-ph astro-ph
null
Using the latest results from the solar neutrino experiments and a few standard assumptions, I show that the popular solar models are ruled out at the 3$\sigma$ level or at least TWO of the experiments are incorrect. Alternatively, one of the assumptions could be in error. These assumptions are spelled out in detail ...
[ { "created": "Tue, 30 Aug 1994 23:03:07 GMT", "version": "v1" }, { "created": "Wed, 28 Sep 1994 18:22:09 GMT", "version": "v2" } ]
2008-11-26
[ [ "Parke", "Stephen", "" ] ]
Using the latest results from the solar neutrino experiments and a few standard assumptions, I show that the popular solar models are ruled out at the 3$\sigma$ level or at least TWO of the experiments are incorrect. Alternatively, one of the assumptions could be in error. These assumptions are spelled out in detail as...
hep-ph/9904443
Paolo Lipari
Paolo Lipari
Atmospheric neutrinos: phenomenological summary and outlook
5 pages, 4 figures. Talk given at WIN99
null
null
null
hep-ph
null
The predictions of the atmospheric nu event rates are affected by significant uncertainties, however the evidence for the `disappearance' of nu_mu's and nubar_mu's obtained by SK (and other underground detectors) is robust and cannot be accounted in the framework of the minimum standard model without assuming very la...
[ { "created": "Fri, 23 Apr 1999 22:32:54 GMT", "version": "v1" } ]
2007-05-23
[ [ "Lipari", "Paolo", "" ] ]
The predictions of the atmospheric nu event rates are affected by significant uncertainties, however the evidence for the `disappearance' of nu_mu's and nubar_mu's obtained by SK (and other underground detectors) is robust and cannot be accounted in the framework of the minimum standard model without assuming very larg...
1806.09323
Daniel Moreno Torres
Daniel Moreno
Spectator effects in the HQET renormalization group improved Lagrangian at $\mathcal{O}(1/m^3)$ with leading logarithmic accuracy: Spin-dependent case
27 pages, 5 figures
Phys. Rev. D 98, 034016 (2018)
10.1103/PhysRevD.98.034016
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The present paper incorporates the effects induced by massless spectator quarks in the renormalization group improved Wilson coefficients associated to the ${\cal O}(1/m^3)$ spin-dependent heavy quark effective theory Lagrangian operators. The computation is carried out in Coulomb gauge with leading logarithmic preci...
[ { "created": "Mon, 25 Jun 2018 08:31:20 GMT", "version": "v1" } ]
2018-08-29
[ [ "Moreno", "Daniel", "" ] ]
The present paper incorporates the effects induced by massless spectator quarks in the renormalization group improved Wilson coefficients associated to the ${\cal O}(1/m^3)$ spin-dependent heavy quark effective theory Lagrangian operators. The computation is carried out in Coulomb gauge with leading logarithmic precisi...
hep-ph/9712480
null
D. Cocolicchio and M. Viggiano
The Quantum Field Theory of the Kaon Oscillations
19 pages, Plain TeX + eps latex file with 2 figures
Nuovo Cim. A112 (1999) 681-696
10.1007/BF03035877
IFUM 600-FT/97
hep-ph
null
We consider the covariant formulation of the kaon mixing in the context of the propagator method. It results important to check the possibility of a sizable effect in the vacuum regeneration of kaons. We discuss all those terms which may give relevant contributions to modify the exponential decay law of the Wigner-We...
[ { "created": "Mon, 22 Dec 1997 14:01:34 GMT", "version": "v1" } ]
2009-10-30
[ [ "Cocolicchio", "D.", "" ], [ "Viggiano", "M.", "" ] ]
We consider the covariant formulation of the kaon mixing in the context of the propagator method. It results important to check the possibility of a sizable effect in the vacuum regeneration of kaons. We discuss all those terms which may give relevant contributions to modify the exponential decay law of the Wigner-Weis...
hep-ph/9808495
Rafel Escribano
R. Escribano
Could the gluon contribution to the proton spin be probed?
6 pages. Talk given at the Quarks'98 conference in Suzdal, Russia, May 1998
null
null
null
hep-ph
null
Central pseudoscalar production in $pp$ scattering is suppressed at small values of $Q_\perp$. Such a behavior is expected if the production occurs through the fusion of two vectors. We argue that an extension of the experiment could probe the gluon contribution to the proton spin.
[ { "created": "Mon, 31 Aug 1998 18:50:22 GMT", "version": "v1" } ]
2007-05-23
[ [ "Escribano", "R.", "" ] ]
Central pseudoscalar production in $pp$ scattering is suppressed at small values of $Q_\perp$. Such a behavior is expected if the production occurs through the fusion of two vectors. We argue that an extension of the experiment could probe the gluon contribution to the proton spin.
hep-ph/9509415
Jose F. Nieves
Juan Carlos D'Olivo, Jose F. Nieves and Palash B. Pal
Cherenkov radiation by massless neutrinos
11 pages Latex file; to appear in Phys. Lett. B
Phys.Lett.B365:178-184,1996
10.1016/0370-2693(95)01246-X
null
hep-ph
null
Due to their weak interactions, neutrinos can polarize a medium and acquire an induced charge. We consider the Cherenkov radiation emitted by neutrinos due to their effective electromagnetic interactions as they pass through a polarizable medium. The effect exists even for massless, chiral neutrinos, where no physics...
[ { "created": "Fri, 29 Sep 1995 02:01:25 GMT", "version": "v1" } ]
2014-11-17
[ [ "D'Olivo", "Juan Carlos", "" ], [ "Nieves", "Jose F.", "" ], [ "Pal", "Palash B.", "" ] ]
Due to their weak interactions, neutrinos can polarize a medium and acquire an induced charge. We consider the Cherenkov radiation emitted by neutrinos due to their effective electromagnetic interactions as they pass through a polarizable medium. The effect exists even for massless, chiral neutrinos, where no physics b...
1201.3429
Hajime Ishimori Dr.
Hajime Ishimori, Tatsuo Kobayashi
Lepton flavor models with discrete prediction of theta_{13}
18 pages, 4 figures
null
10.1103/PhysRevD.85.125004
KUNS-2380
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the lepton flavor models with the flavor symmetry (Z_N \times Z_N \times Z_N)\rtimes Z_3. Our models predict non-vanishing discrete values of \theta_{13} as well as \theta_{12} and \theta_{23} depending on N. For certain values, our models realize the tri-bimaximal mixing angles with \theta_{13}=0. For other...
[ { "created": "Tue, 17 Jan 2012 05:03:00 GMT", "version": "v1" } ]
2015-06-03
[ [ "Ishimori", "Hajime", "" ], [ "Kobayashi", "Tatsuo", "" ] ]
We study the lepton flavor models with the flavor symmetry (Z_N \times Z_N \times Z_N)\rtimes Z_3. Our models predict non-vanishing discrete values of \theta_{13} as well as \theta_{12} and \theta_{23} depending on N. For certain values, our models realize the tri-bimaximal mixing angles with \theta_{13}=0. For other v...
hep-ph/0302079
Laurent Favart
L. Favart, M.V.T. Machado
Deeply Virtual Compton Scattering and Saturation Approach
12 pages - Vers.2. Accepted by EJP
Eur.Phys.J.C29:365-371,2003
10.1140/epjc/s2003-01240-3
DESY 03-016
hep-ph
null
We investigate the deeply virtual Compton scattering (DVCS) in the color dipole approach, implementing the dipole cross section through the saturation model, which interpolates successfully between soft and hard regimes. The imaginary and real part of the DVCS amplitude are obtained and the results are compared to th...
[ { "created": "Tue, 11 Feb 2003 14:51:27 GMT", "version": "v1" }, { "created": "Wed, 7 May 2003 19:47:59 GMT", "version": "v2" } ]
2011-09-13
[ [ "Favart", "L.", "" ], [ "Machado", "M. V. T.", "" ] ]
We investigate the deeply virtual Compton scattering (DVCS) in the color dipole approach, implementing the dipole cross section through the saturation model, which interpolates successfully between soft and hard regimes. The imaginary and real part of the DVCS amplitude are obtained and the results are compared to the ...
hep-ph/0010211
Peter Arnold
Peter Arnold
Hot Scalar Theory in Large N: Bose-Einstein Condensation
Talk presented at SEWM 2000. 5 pages, 2 figures
null
10.1142/9789812799913_0014
null
hep-ph
null
I review the Bose-Einstein condensation phase transition of dilute gases of cold atoms, for particle theorists acquainted with methods of field theory at finite temperature. I then discuss how the dependence of the phase transition temperature on the interaction strength can be computed in the large N approximation.
[ { "created": "Wed, 18 Oct 2000 15:42:47 GMT", "version": "v1" } ]
2017-08-23
[ [ "Arnold", "Peter", "" ] ]
I review the Bose-Einstein condensation phase transition of dilute gases of cold atoms, for particle theorists acquainted with methods of field theory at finite temperature. I then discuss how the dependence of the phase transition temperature on the interaction strength can be computed in the large N approximation.
2110.01662
Alexander Lenz
Alexander Lenz
Theory Motivation: What measurements are needed?
Proceeding HQL 2021, Warwick, 14 pages, 2 figures, comments welcome
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
I give a theory motivation for future measurements in quark flavour physics, trying to identify observables, which are less familiar, but nevertheless interesting and promising.
[ { "created": "Mon, 4 Oct 2021 18:56:47 GMT", "version": "v1" } ]
2021-10-06
[ [ "Lenz", "Alexander", "" ] ]
I give a theory motivation for future measurements in quark flavour physics, trying to identify observables, which are less familiar, but nevertheless interesting and promising.
1808.05932
Christopher W. Murphy
Christopher W. Murphy, Amarjit Soni
Model-Independent Determination of $B_c^+ \to \eta_c\, \ell^+\, \nu$ Form Factors
v3: 9 pages, 2 figures, 2 tables, journal version
Phys. Rev. D 98, 094026 (2018)
10.1103/PhysRevD.98.094026
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We derive model-independent bounds on the form factors for the decay $B_c^+ \to \eta_c\, \ell^+\, \nu$ including full mass effects, i.e. $\ell = e,\, \mu, \text{ and } \tau$. The bounds are obtained by using the BGL parameterization for the form factors, and fitting to the preliminary lattice data of the HPQCD Collab...
[ { "created": "Fri, 17 Aug 2018 17:16:25 GMT", "version": "v1" }, { "created": "Wed, 29 Aug 2018 12:28:55 GMT", "version": "v2" }, { "created": "Mon, 26 Nov 2018 22:08:04 GMT", "version": "v3" } ]
2018-12-05
[ [ "Murphy", "Christopher W.", "" ], [ "Soni", "Amarjit", "" ] ]
We derive model-independent bounds on the form factors for the decay $B_c^+ \to \eta_c\, \ell^+\, \nu$ including full mass effects, i.e. $\ell = e,\, \mu, \text{ and } \tau$. The bounds are obtained by using the BGL parameterization for the form factors, and fitting to the preliminary lattice data of the HPQCD Collabor...
1507.04644
Melissa van Beekveld
Abraham Achterberg, Melissa van Beekveld, Wim Beenakker, Sascha Caron, Luc Hendriks
Comparing Galactic Center MSSM dark matter solutions to the Reticulum II gamma-ray data
4 pages, 2 figures, accepted in JCAP
JCAP12(2015)013
10.1088/1475-7516/2015/12/013
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Observations with the Fermi Large Area Telescope (LAT) indicate a possible small photon signal originating from the dwarf galaxy Reticulum II that exceeds the expected background between 2 GeV and 10 GeV. We have investigated two specific scenarios for annihilating WIMP dark matter within the phenomenological Minimal...
[ { "created": "Thu, 16 Jul 2015 16:39:41 GMT", "version": "v1" }, { "created": "Mon, 14 Dec 2015 09:42:45 GMT", "version": "v2" } ]
2015-12-23
[ [ "Achterberg", "Abraham", "" ], [ "van Beekveld", "Melissa", "" ], [ "Beenakker", "Wim", "" ], [ "Caron", "Sascha", "" ], [ "Hendriks", "Luc", "" ] ]
Observations with the Fermi Large Area Telescope (LAT) indicate a possible small photon signal originating from the dwarf galaxy Reticulum II that exceeds the expected background between 2 GeV and 10 GeV. We have investigated two specific scenarios for annihilating WIMP dark matter within the phenomenological Minimal S...
1412.4903
Monika Randhawa
Monika Randhawa, Mandip Singh, Manmohan Gupta
Estimating matter induced CPT violation in Long-Baseline Neutrino Experiments
5 pages, 3 figures
null
10.1103/PhysRevD.91.017301
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We examine matter induced CPT violation effects in long baseline electron neutrino appearance experiments in a low energy neutrino factory setup. Assuming CPT invariance in vacuum, the magnitude of CPT violating asymmetry in matter has been estimated using the exact expressions for the transition probabilities. The d...
[ { "created": "Tue, 16 Dec 2014 07:52:37 GMT", "version": "v1" } ]
2015-06-23
[ [ "Randhawa", "Monika", "" ], [ "Singh", "Mandip", "" ], [ "Gupta", "Manmohan", "" ] ]
We examine matter induced CPT violation effects in long baseline electron neutrino appearance experiments in a low energy neutrino factory setup. Assuming CPT invariance in vacuum, the magnitude of CPT violating asymmetry in matter has been estimated using the exact expressions for the transition probabilities. The dep...
1111.3441
Sayantan Choudhury
Sayantan Choudhury and Supratik Pal
Fourth level MSSM inflation from new flat directions
9 pages, 11 figures, Final version, Accepted for publication in JCAP
JCAP 04 (2012) 018
10.1088/1475-7516/2012/04/018
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a model of inflation driven by minimal extension of SUSY, commonly known as MSSM. Starting from gauge invariant flat directions in the n = 4 level comprising of QQQL,QuQd,QuLe and uude, we construct the inflaton potential and employ it to investigate for its consequences around the saddle point arising fro...
[ { "created": "Tue, 15 Nov 2011 07:03:37 GMT", "version": "v1" }, { "created": "Thu, 24 Nov 2011 15:27:49 GMT", "version": "v2" }, { "created": "Thu, 29 Mar 2012 18:51:33 GMT", "version": "v3" } ]
2012-04-19
[ [ "Choudhury", "Sayantan", "" ], [ "Pal", "Supratik", "" ] ]
We propose a model of inflation driven by minimal extension of SUSY, commonly known as MSSM. Starting from gauge invariant flat directions in the n = 4 level comprising of QQQL,QuQd,QuLe and uude, we construct the inflaton potential and employ it to investigate for its consequences around the saddle point arising from ...
1107.5446
Bj\"orn Pirnay
B. M. Pirnay
Higher twist parton distributions from LCWFs
4 pages, 3 figures. To appear in the proceedings of the XIX International Workshop on Deep-Inelastic Scattering and Related Subjests(DIS2011), Newport News, USA, Apr.11-15, 2011
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We report on the results of a recent work, where we explore the possibility to construct higher-twist parton distributions in a nucleon at some low reference scale from convolution integrals of the light-cone wave functions (LCWFs). These WFs provide one with a reasonable description of both polarized and unpolarized...
[ { "created": "Wed, 27 Jul 2011 11:50:30 GMT", "version": "v1" } ]
2011-07-28
[ [ "Pirnay", "B. M.", "" ] ]
We report on the results of a recent work, where we explore the possibility to construct higher-twist parton distributions in a nucleon at some low reference scale from convolution integrals of the light-cone wave functions (LCWFs). These WFs provide one with a reasonable description of both polarized and unpolarized p...
0908.2320
Tri-Nang Pham
T. N. Pham
$B\to K\pi$ decays
LaTeX, 6 pages, 4 figures, v2, added references
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Though QCD Factorization(QCDF) could produce sufficiently large $B\to K\pi$ branching ratios close to experiments, the predicted direct CP asymmetry in ${\bar B}^{0}\to K^{+}\pi^{-}$ decay is however still quite below experiment, even with a large negative phase in the annihilation term, according to existing calcula...
[ { "created": "Mon, 17 Aug 2009 10:37:35 GMT", "version": "v1" }, { "created": "Wed, 19 Aug 2009 08:35:53 GMT", "version": "v2" } ]
2009-10-19
[ [ "Pham", "T. N.", "" ] ]
Though QCD Factorization(QCDF) could produce sufficiently large $B\to K\pi$ branching ratios close to experiments, the predicted direct CP asymmetry in ${\bar B}^{0}\to K^{+}\pi^{-}$ decay is however still quite below experiment, even with a large negative phase in the annihilation term, according to existing calculati...
2007.15626
Soumya Sadhukhan
Nilanjana Kumar and Soumya Sadhukhan
Emergent 2HDM in LSS Little-Higgs: Musings from Flavor and Electroweak Physics
23 pages, 3 figures, minor changes
Phys. Rev. D 103, 055011 (2021)
10.1103/PhysRevD.103.055011
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
The low energy effective theory ($\sim$ TeV) of the little-Higgs model with $SU(6)/Sp(6)$, as proposed by Low, Skiba and Smith (LSS), exhibits a two-Higgs doublet model (2HDM) structure. The symmetry dictates interesting Yukawa patterns, translating to non-trivial fermion couplings with both of the Higgs doublets. Th...
[ { "created": "Thu, 30 Jul 2020 17:49:33 GMT", "version": "v1" }, { "created": "Sun, 23 Aug 2020 13:11:39 GMT", "version": "v2" }, { "created": "Fri, 19 Nov 2021 16:43:07 GMT", "version": "v3" } ]
2021-11-22
[ [ "Kumar", "Nilanjana", "" ], [ "Sadhukhan", "Soumya", "" ] ]
The low energy effective theory ($\sim$ TeV) of the little-Higgs model with $SU(6)/Sp(6)$, as proposed by Low, Skiba and Smith (LSS), exhibits a two-Higgs doublet model (2HDM) structure. The symmetry dictates interesting Yukawa patterns, translating to non-trivial fermion couplings with both of the Higgs doublets. The ...
hep-ph/9611331
Antonio F. Perez
John F. Donoghue (1) and Antonio F. Perez (1 and 2) ((1) University of Massachusetts Amherst, (2) University of Cincinnati)
The Electromagnetic Mass Differences of Pions and Kaons
40 pages, Latex, needs axodraw. and psfig. macros, 4 figures
Phys.Rev.D55:7075-7092,1997
10.1103/PhysRevD.55.7075
UCTP-9-96, UMHEP-428
hep-ph
null
We use the Cottingham method to calculate the pion and kaon electromagnetic mass differences with as few model dependent inputs as possible. The constraints of chiral symmetry at low energy, QCD at high energy and experimental data in between are used in the dispersion relation. We find excellent agreement with exper...
[ { "created": "Thu, 14 Nov 1996 23:03:23 GMT", "version": "v1" } ]
2014-11-17
[ [ "Donoghue", "John F.", "", "1 and 2" ], [ "Perez", "Antonio F.", "", "1 and 2" ] ]
We use the Cottingham method to calculate the pion and kaon electromagnetic mass differences with as few model dependent inputs as possible. The constraints of chiral symmetry at low energy, QCD at high energy and experimental data in between are used in the dispersion relation. We find excellent agreement with experim...
hep-ph/0110168
Stephane Willocq
P.C. Rowson, Dong Su, Stephane Willocq
Highlights of the SLD Physics Program at the SLAC Linear Collider
To appear in 2001 Annual Review of Nuclear and Particle Science; 78 pages, 31 figures; A version with higher resolution figures can be seen at http://www.slac.stanford.edu/pubs/slacpubs/8000/slac-pub-8985.html; Second version incorporates minor changes to the text
Ann.Rev.Nucl.Part.Sci. 51 (2001) 345-412
10.1146/annurev.nucl.51.101701.132413
SLAC-PUB-8985
hep-ph hep-ex
null
Starting in 1989, and continuing through the 1990s, high-energy physics witnessed a flowering of precision measurements in general and tests of the standard model in particular, led by e+e- collider experiments operating at the Z0 resonance. Key contributions to this work came from the SLD collaboration at the SLAC L...
[ { "created": "Fri, 12 Oct 2001 17:06:03 GMT", "version": "v1" }, { "created": "Mon, 29 Oct 2001 17:26:20 GMT", "version": "v2" } ]
2009-11-07
[ [ "Rowson", "P. C.", "" ], [ "Su", "Dong", "" ], [ "Willocq", "Stephane", "" ] ]
Starting in 1989, and continuing through the 1990s, high-energy physics witnessed a flowering of precision measurements in general and tests of the standard model in particular, led by e+e- collider experiments operating at the Z0 resonance. Key contributions to this work came from the SLD collaboration at the SLAC Lin...
1709.04294
\'Alvaro Hern\'andez-Cabezudo
Mona Dentler, \'Alvaro Hern\'andez-Cabezudo, Joachim Kopp, Michele Maltoni, Thomas Schwetz
Sterile Neutrinos or Flux Uncertainties? - Status of the Reactor Anti-Neutrino Anomaly
25 pages, 5 figures. 1 page and table 4 added. Published in JHEP
JHEP 11 (2017) 099
10.1007/JHEP11(2017)099
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The $\sim 3\sigma$ discrepancy between the predicted and observed reactor anti-neutrino flux, known as the reactor anti-neutrino anomaly, continues to intrigue. The recent discovery of an unexpected bump in the reactor anti-neutrino spectrum, as well as indications that the flux deficit is different for different fis...
[ { "created": "Wed, 13 Sep 2017 12:47:57 GMT", "version": "v1" }, { "created": "Wed, 22 Nov 2017 17:22:10 GMT", "version": "v2" } ]
2017-11-23
[ [ "Dentler", "Mona", "" ], [ "Hernández-Cabezudo", "Álvaro", "" ], [ "Kopp", "Joachim", "" ], [ "Maltoni", "Michele", "" ], [ "Schwetz", "Thomas", "" ] ]
The $\sim 3\sigma$ discrepancy between the predicted and observed reactor anti-neutrino flux, known as the reactor anti-neutrino anomaly, continues to intrigue. The recent discovery of an unexpected bump in the reactor anti-neutrino spectrum, as well as indications that the flux deficit is different for different fissi...
1410.3893
David Fogaca
S. M. Sanches Jr., F. S. Navarra and D. A. Foga\c{c}a
The quark gluon plasma equation of state and the expansion of the early Universe
null
Nuclear Physics A 937 (2015), 1
10.1016/j.nuclphysa.2015.02.004
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Our knowledge of the equation of state of the quark gluon plasma has been continuously growing due to the experimental results from heavy ion collisions, due to recent astrophysical measurements and also due to the advances in lattice QCD calculations. The new findings about this state may have consequences on the ti...
[ { "created": "Tue, 14 Oct 2014 23:18:36 GMT", "version": "v1" }, { "created": "Wed, 25 Feb 2015 16:16:03 GMT", "version": "v2" } ]
2015-02-27
[ [ "Sanches", "S. M.", "Jr." ], [ "Navarra", "F. S.", "" ], [ "Fogaça", "D. A.", "" ] ]
Our knowledge of the equation of state of the quark gluon plasma has been continuously growing due to the experimental results from heavy ion collisions, due to recent astrophysical measurements and also due to the advances in lattice QCD calculations. The new findings about this state may have consequences on the time...
1009.4413
Heather E. Logan
Shainen M. Davidson and Heather E. Logan (Carleton U.)
LHC phenomenology of a two-Higgs-doublet neutrino mass model
24 pages, 4 figures. V2: reference added, submitted to PRD. V3: minor improvements to text; version to appear in PRD
Phys.Rev.D82:115031,2010
10.1103/PhysRevD.82.115031
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the LHC search prospects for a model in which the neutrinos obtain Dirac masses from couplings to a second Higgs doublet with tiny vacuum expectation value. The model contains a charged Higgs boson that decays to l nu with branching fractions controlled by the neutrino masses and mixing angles as measured in...
[ { "created": "Wed, 22 Sep 2010 16:31:11 GMT", "version": "v1" }, { "created": "Tue, 5 Oct 2010 12:46:15 GMT", "version": "v2" }, { "created": "Mon, 13 Dec 2010 20:48:39 GMT", "version": "v3" } ]
2011-03-07
[ [ "Davidson", "Shainen M.", "", "Carleton U." ], [ "Logan", "Heather E.", "", "Carleton U." ] ]
We study the LHC search prospects for a model in which the neutrinos obtain Dirac masses from couplings to a second Higgs doublet with tiny vacuum expectation value. The model contains a charged Higgs boson that decays to l nu with branching fractions controlled by the neutrino masses and mixing angles as measured in n...
hep-ph/0109167
Hubert Spiesberger
G.Kramer and H.Spiesberger
Inclusive D* Production in Photon-Photon Collisions at Next-to-Leading Order QCD
27 pages, 8 figures, LaTeX
Eur.Phys.J.C22:289-301,2001
10.1007/s100520100805
DESY 01/134, MZ-TH/01-23 (Mainz)
hep-ph
null
The next-to-leading order cross section for the inclusive production of charm quarks in gamma-gamma collisions is calculated as a function of the transverse momentum pT and the rapidity y in approaches using massive or massless charm quarks. For the direct cross section we derive the massless limit from the massive t...
[ { "created": "Wed, 19 Sep 2001 14:00:43 GMT", "version": "v1" } ]
2011-09-13
[ [ "Kramer", "G.", "" ], [ "Spiesberger", "H.", "" ] ]
The next-to-leading order cross section for the inclusive production of charm quarks in gamma-gamma collisions is calculated as a function of the transverse momentum pT and the rapidity y in approaches using massive or massless charm quarks. For the direct cross section we derive the massless limit from the massive the...
hep-ph/0503049
Gian Paolo Vacca
J. Bartels, M. Salvadore, G. P. Vacca
AGK Cutting Rules and Multiple Scattering in Hadronic Collisions
31 pages, latex, 20 figures
Eur.Phys.J.C42:53-71,2005
10.1140/epjc/s2005-02258-1
null
hep-ph
null
We discuss the AGK rules for the exchange of an arbitrary number of reggeized gluons in perturbative QCD in the high energy limit. Results include the cancellation of corrections to single jet and double jet inclusive cross sections, both for hard and soft rescattering contributions.
[ { "created": "Fri, 4 Mar 2005 13:32:45 GMT", "version": "v1" } ]
2011-09-13
[ [ "Bartels", "J.", "" ], [ "Salvadore", "M.", "" ], [ "Vacca", "G. P.", "" ] ]
We discuss the AGK rules for the exchange of an arbitrary number of reggeized gluons in perturbative QCD in the high energy limit. Results include the cancellation of corrections to single jet and double jet inclusive cross sections, both for hard and soft rescattering contributions.
2203.14570
Hai-Qing Zhou
Qian-Qian Guo, Hai-Qing Zhou
Two-Photon-Exchange effect in $ep\rightarrow en\pi^+$ at small $-t$ with the hadronic model and dispersion relation approach
null
null
10.1103/PhysRevC.106.015203
null
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, the two-photon-exchange (TPE) effect in $ep\rightarrow en\pi^+$ at small $-t$ is discussed. In the previous work, the TPE contribution with one $\pi$ intermediate state is estimated numerically within a hadronic model under the pion-dominance approximation. Here we extend the discussion to include one $...
[ { "created": "Mon, 28 Mar 2022 08:22:47 GMT", "version": "v1" }, { "created": "Tue, 29 Mar 2022 01:57:46 GMT", "version": "v2" } ]
2022-07-27
[ [ "Guo", "Qian-Qian", "" ], [ "Zhou", "Hai-Qing", "" ] ]
In this work, the two-photon-exchange (TPE) effect in $ep\rightarrow en\pi^+$ at small $-t$ is discussed. In the previous work, the TPE contribution with one $\pi$ intermediate state is estimated numerically within a hadronic model under the pion-dominance approximation. Here we extend the discussion to include one $\r...
hep-ph/0510292
Raju Venugopalan
Paul Romatschke, Raju Venugopalan
A Weibel Instability in the Melting Color Glass Condensate
8 pages, invited talk at Workshop on Quark Gluon Plasma Thermalization, Vienna, August 10th-12th, 2005
Eur.Phys.J. A29 (2006) 71-75
10.1140/epja/i2005-10304-y
BI-TP 2005/46
hep-ph hep-lat nucl-th
null
Based on hep-ph/0510121, we discuss further the numerical study of classical SU(2) 3+1-D Yang-Mills equations for matter produced in a high energy heavy ion collision. The growth of the amplitude of fluctuations as $\exp{(\Gamma \sqrt{g^2\mu \tau})}$ (where $g^2\mu$ is a scale arising from the saturation of gluons in...
[ { "created": "Fri, 21 Oct 2005 19:39:42 GMT", "version": "v1" }, { "created": "Mon, 19 Dec 2005 18:18:07 GMT", "version": "v2" } ]
2009-11-11
[ [ "Romatschke", "Paul", "" ], [ "Venugopalan", "Raju", "" ] ]
Based on hep-ph/0510121, we discuss further the numerical study of classical SU(2) 3+1-D Yang-Mills equations for matter produced in a high energy heavy ion collision. The growth of the amplitude of fluctuations as $\exp{(\Gamma \sqrt{g^2\mu \tau})}$ (where $g^2\mu$ is a scale arising from the saturation of gluons in t...
hep-ph/0007295
Gennaro Corcella
Gennaro Corcella (Rochester)
Vector Boson Production at Hadron Colliders: Results from HERWIG and Resummed Calculations
13 pages, Talk given at the 22nd annual MRST (Montreal-Rochester-Syracuse-Toronto) Meeting on High Energy Physics (MRST 2000), Rochester, NY, U.S.A., 8-9 May 2000
AIP Conf.Proc. 541 (2000) 190-201
10.1063/1.1328915
UR-1610, ER/40685/949
hep-ph
null
We discuss vector boson production at hadron colliders and the treatment of the initial-state radiation according to Monte Carlo parton shower simulations and resummed calculations. In particular, we investigate the effect of matrix-element corrections to the HERWIG event generator on W/Z transverse momentum distribu...
[ { "created": "Wed, 26 Jul 2000 14:41:59 GMT", "version": "v1" } ]
2009-10-31
[ [ "Corcella", "Gennaro", "", "Rochester" ] ]
We discuss vector boson production at hadron colliders and the treatment of the initial-state radiation according to Monte Carlo parton shower simulations and resummed calculations. In particular, we investigate the effect of matrix-element corrections to the HERWIG event generator on W/Z transverse momentum distributi...
hep-ph/0512102
Ilya F. Ginzburg
I.F. Ginzburg
Symmetries of 2HDM, different vacua, CP violation and possible relation to a history of time
15 pages
Acta Phys.Polon.B37:1161-1172,2006
null
null
hep-ph
null
The same physical reality in Two Higgs doublet model (2HDM) can be described by different Lagrangians. We call this property the reparametrization invariance (in space of Lagrangians) and study corresponding symmetry group and its subgroup describing rephasing invariance. Next we consider the $Z_2$-symmetry of the La...
[ { "created": "Thu, 8 Dec 2005 16:22:54 GMT", "version": "v1" } ]
2011-07-19
[ [ "Ginzburg", "I. F.", "" ] ]
The same physical reality in Two Higgs doublet model (2HDM) can be described by different Lagrangians. We call this property the reparametrization invariance (in space of Lagrangians) and study corresponding symmetry group and its subgroup describing rephasing invariance. Next we consider the $Z_2$-symmetry of the Lagr...
1606.07826
Sabyasachi Chakraborty
Amit Chakraborty, Sabyasachi Chakraborty and Tuhin S. Roy
Chasing New Physics in Stacks of Soft Tracks
5 pages, 4 figures
Phys. Rev. D 94, 111703 (2016)
10.1103/PhysRevD.94.111703
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this letter we introduce a new variable $\xi$, namely the number of tracks associated with the primary vertex, which are not parts of reconstructed objects such as jets/isolated leptons etc. We demonstrate its usefulness in the context of new physics searches in the channel monojet$+$missing transverse momentum (M...
[ { "created": "Fri, 24 Jun 2016 20:15:01 GMT", "version": "v1" } ]
2016-12-28
[ [ "Chakraborty", "Amit", "" ], [ "Chakraborty", "Sabyasachi", "" ], [ "Roy", "Tuhin S.", "" ] ]
In this letter we introduce a new variable $\xi$, namely the number of tracks associated with the primary vertex, which are not parts of reconstructed objects such as jets/isolated leptons etc. We demonstrate its usefulness in the context of new physics searches in the channel monojet$+$missing transverse momentum (MET...
1802.08517
Diego Spiering
V. P. Goncalves, F. S. Navarra, D. Spiering
Exclusive vector meson photoproduction with proton dissociation in photon-hadron interactions at the LHC
4 pages, 3 figures. Poster presented at the XIV International Workshop on Hadron Physics, Florianopolis, Brazil, March 2018
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
At forward rapidities and high energies we expect to probe the non-linear regime of Quantum Chromodynamics (QCD). One of the most promising observables to constrain the QCD dynamics in this regime is exclusive vector meson photoproduction (EVMP). We study the EVMP in association with a leading baryon (product of the ...
[ { "created": "Fri, 23 Feb 2018 13:12:41 GMT", "version": "v1" } ]
2018-02-26
[ [ "Goncalves", "V. P.", "" ], [ "Navarra", "F. S.", "" ], [ "Spiering", "D.", "" ] ]
At forward rapidities and high energies we expect to probe the non-linear regime of Quantum Chromodynamics (QCD). One of the most promising observables to constrain the QCD dynamics in this regime is exclusive vector meson photoproduction (EVMP). We study the EVMP in association with a leading baryon (product of the pr...
hep-ph/9907449
Gail C. McLaughlin
G. C. McLaughlin and J. N. Ng
Singlet Interacting Neutrinos in the Extended Zee Model and Solar Neutrino Transformation
12 pages, 3 figures
Phys.Lett. B464 (1999) 232-238
10.1016/S0370-2693(99)00917-X
null
hep-ph astro-ph
null
We study the impact of Standard Model singlet neutrinos on neutrino flavor transformation. We focus on an extension of the Zee model which includes singlet neutrinos, and find that the best limits on the interactions of the singlet neutrinos come from astrophysical phenomena. Singlet neutrino-electron scattering will...
[ { "created": "Wed, 21 Jul 1999 22:38:32 GMT", "version": "v1" } ]
2009-10-31
[ [ "McLaughlin", "G. C.", "" ], [ "Ng", "J. N.", "" ] ]
We study the impact of Standard Model singlet neutrinos on neutrino flavor transformation. We focus on an extension of the Zee model which includes singlet neutrinos, and find that the best limits on the interactions of the singlet neutrinos come from astrophysical phenomena. Singlet neutrino-electron scattering will i...
hep-ph/9506372
Hyun-Chul Kim
Hyun-Chul Kim and Mikhail Shmatikov
Elusive exotic states
10 pages including 4 figures. RevTex and epsfig.sty are used. Accepted for publication in Phys. Lett. B
Phys.Lett. B375 (1996) 310-314
10.1016/0370-2693(96)00196-7
RUB-TPII-21/95
hep-ph
null
The existence of flavor exotic $QQ\bar{q}\bar{q}$ molecular-type states is investigated. An attractive force between two {\it pseudoscalar} $H = (Q\bar{q})$ heavy meson is generated by (correlated) two-pion exchange. The emergence of a (loosely) bound state depends crucially on the value of the coupling constant $g$ ...
[ { "created": "Tue, 20 Jun 1995 13:13:52 GMT", "version": "v1" }, { "created": "Wed, 21 Feb 1996 13:04:34 GMT", "version": "v2" } ]
2009-10-28
[ [ "Kim", "Hyun-Chul", "" ], [ "Shmatikov", "Mikhail", "" ] ]
The existence of flavor exotic $QQ\bar{q}\bar{q}$ molecular-type states is investigated. An attractive force between two {\it pseudoscalar} $H = (Q\bar{q})$ heavy meson is generated by (correlated) two-pion exchange. The emergence of a (loosely) bound state depends crucially on the value of the coupling constant $g$ of...
hep-ph/9801395
Frank E. Paige
Frank E. Paige (BNL)
SUSY Before the Next Lepton Collider
LaTeX with included aipproc.sty, 17 pages, 12 figures. To appear in Workshop on Physics at the First Muon Collider
null
10.1063/1.56206
BNL-HET-98/5
hep-ph
null
After a brief review of the Minimal Supersymmetric Standard Model (MSSM) and specifically the Minimal Supergravity Model (SUGRA), the prospects for discovering and studying SUSY at the CERN Large Hadron Collider are reviewed. The possible role for a future Lepton Collider --- whether $\mu^+\mu^-$ or $e^+e^-$ --- is a...
[ { "created": "Thu, 22 Jan 1998 20:53:48 GMT", "version": "v1" } ]
2009-10-31
[ [ "Paige", "Frank E.", "", "BNL" ] ]
After a brief review of the Minimal Supersymmetric Standard Model (MSSM) and specifically the Minimal Supergravity Model (SUGRA), the prospects for discovering and studying SUSY at the CERN Large Hadron Collider are reviewed. The possible role for a future Lepton Collider --- whether $\mu^+\mu^-$ or $e^+e^-$ --- is als...
1208.5040
Alejandro Jenkins
Alejandro Jenkins and Takemichi Okui
Gyroscopic Inflation
4 pages
null
null
null
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a new framework for multi-field inflation in which a nearly constant potential energy is maintained during inflation before decreasing rapidly, in a manner analogous to a classical top spinning upright for a long time before falling down. We provide the simplest realization of such dynamics as a well-contr...
[ { "created": "Fri, 24 Aug 2012 19:33:06 GMT", "version": "v1" } ]
2012-08-27
[ [ "Jenkins", "Alejandro", "" ], [ "Okui", "Takemichi", "" ] ]
We propose a new framework for multi-field inflation in which a nearly constant potential energy is maintained during inflation before decreasing rapidly, in a manner analogous to a classical top spinning upright for a long time before falling down. We provide the simplest realization of such dynamics as a well-control...
2407.03567
Gang Li
Zu-Xin Cai, Zhao-Sai Jia, Gang Li, Shi-Dong Liu, Ju-Jun Xie
Charmless decays of the spin-2 partner of $X(3872)$
8 pages, 7figure, comments welcome
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Belle collaboration recently reported a promising candidate for the spin-2 $D^*\bar{D}^*$ partner of the $X(3872)$, called the $X_2$ for short, having a mass of $(4014.3 \pm 4.0 \pm 1.5)~\mathrm{MeV}$ and a width of $(4 \pm 11 \pm 6)~\mathrm{MeV} $. In present work, we assume the $X_2$ as a pure molecule of the $...
[ { "created": "Thu, 4 Jul 2024 01:42:31 GMT", "version": "v1" } ]
2024-07-08
[ [ "Cai", "Zu-Xin", "" ], [ "Jia", "Zhao-Sai", "" ], [ "Li", "Gang", "" ], [ "Liu", "Shi-Dong", "" ], [ "Xie", "Ju-Jun", "" ] ]
The Belle collaboration recently reported a promising candidate for the spin-2 $D^*\bar{D}^*$ partner of the $X(3872)$, called the $X_2$ for short, having a mass of $(4014.3 \pm 4.0 \pm 1.5)~\mathrm{MeV}$ and a width of $(4 \pm 11 \pm 6)~\mathrm{MeV} $. In present work, we assume the $X_2$ as a pure molecule of the $D^...
2205.06646
Tom Steudtner
Tom Steudtner
Safe $Z'$ for LFUV
Contribution to the 2022 EW & GUT session of the 56th Rencontres de Moriond
null
null
DO-TH 22/10
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is demonstrated that accounting for lepton flavor universality violating anomalies in $B$ meson decays via $Z'$ models implies a Landau pole problem. A family of models is proposed that resolve both issues simultaneously, fix the metastability of the Higgs and are predictive up to the Planck scale.
[ { "created": "Fri, 13 May 2022 13:50:28 GMT", "version": "v1" } ]
2022-05-16
[ [ "Steudtner", "Tom", "" ] ]
It is demonstrated that accounting for lepton flavor universality violating anomalies in $B$ meson decays via $Z'$ models implies a Landau pole problem. A family of models is proposed that resolve both issues simultaneously, fix the metastability of the Higgs and are predictive up to the Planck scale.
0708.3285
Javier Vijande Asenjo
J. Vijande, E. Weissman, N. Barnea, A. Valcarce
Do $c\bar c n\bar n$ bound states exist?
30 pages, 2 figures. Accepted for publication in Phys. Rev. D
Phys.Rev.D76:094022,2007
10.1103/PhysRevD.76.094022
null
hep-ph hep-ex
null
The four--quark system $c\bar c n\bar n$ is studied in the framework of the constituent quark model. Using different types of quark-quark potentials, we solve the four--body Schr\"odinger equation by means of the hyperspherical harmonic formalism. Exploring the low laying $J^{PC}$ states for different isospin configu...
[ { "created": "Fri, 24 Aug 2007 08:08:21 GMT", "version": "v1" } ]
2008-11-26
[ [ "Vijande", "J.", "" ], [ "Weissman", "E.", "" ], [ "Barnea", "N.", "" ], [ "Valcarce", "A.", "" ] ]
The four--quark system $c\bar c n\bar n$ is studied in the framework of the constituent quark model. Using different types of quark-quark potentials, we solve the four--body Schr\"odinger equation by means of the hyperspherical harmonic formalism. Exploring the low laying $J^{PC}$ states for different isospin configura...
1701.02757
Jos\'e Eliel Camargo Molina
Jos\'e Eliel Camargo-Molina, Roman Pasechnik, Jonas Wess\'en
Charged scalars from $\mathrm{SU}(3)^3$ theories
7 pages, 2 figures, 5 tables, Proceedings of Prospects for Charged Higgs Discovery at Colliders 2016
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Inspired by a recently proposed GUT model based on the trinification ($\mathrm{SU}(3)^3$) gauge group with a global family ($\mathrm{SU}(3)_F$) symmetry, we consider an effective low-energy three Higgs doublet model that may shed light on what underlies the observed fermion mass hierarchies and CKM mixing. We discuss...
[ { "created": "Tue, 10 Jan 2017 19:06:04 GMT", "version": "v1" } ]
2017-01-12
[ [ "Camargo-Molina", "José Eliel", "" ], [ "Pasechnik", "Roman", "" ], [ "Wessén", "Jonas", "" ] ]
Inspired by a recently proposed GUT model based on the trinification ($\mathrm{SU}(3)^3$) gauge group with a global family ($\mathrm{SU}(3)_F$) symmetry, we consider an effective low-energy three Higgs doublet model that may shed light on what underlies the observed fermion mass hierarchies and CKM mixing. We discuss p...
hep-ph/9602330
Myron Bander
Myron Bander
Quark resonances and high E_t jets
7 pages set in RevTex with four postscript figures appended- all uuencoded
Phys.Rev.Lett. 77 (1996) 601-602
10.1103/PhysRevLett.77.601
UCI-TR 96-7
hep-ph
null
Possible spin-3/2 quark resonances would have a significant effect on high E$_{\mbox{\rm t}}$ jet production through their contribution to the subprocess $q+{\bar q}\rightarrow g+g$. Such enhancements are compared to a, recently reported, anomaly in inclusive jet production at the CDF detector.
[ { "created": "Fri, 16 Feb 1996 18:52:01 GMT", "version": "v1" } ]
2009-10-28
[ [ "Bander", "Myron", "" ] ]
Possible spin-3/2 quark resonances would have a significant effect on high E$_{\mbox{\rm t}}$ jet production through their contribution to the subprocess $q+{\bar q}\rightarrow g+g$. Such enhancements are compared to a, recently reported, anomaly in inclusive jet production at the CDF detector.
2103.03127
Zhan-Wei Liu
Xin-Dian Yang, Fu-Lai Wang, Zhan-Wei Liu, Xiang Liu
Newly observed $X(4630)$: a new charmoniumlike molecule
8 pages, 5 figures; accepted by Euro. Phys. J. C
Eur. Phys. J. C 81 (2021) 9, 807
10.1140/epjc/s10052-021-09606-7
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Very recently, the LHCb Collaboration at the Large Hadron Collider at CERN observed new resonance $X(4630)$. The $X(4630)$ is decoded as a charmoniumlike molecule with hidden-strange quantum number well in the one boson exchange mechanism. Especially, the study of its hidden-charmed decays explicitly shows the domina...
[ { "created": "Thu, 4 Mar 2021 15:57:53 GMT", "version": "v1" }, { "created": "Mon, 30 Aug 2021 07:18:36 GMT", "version": "v2" } ]
2021-09-16
[ [ "Yang", "Xin-Dian", "" ], [ "Wang", "Fu-Lai", "" ], [ "Liu", "Zhan-Wei", "" ], [ "Liu", "Xiang", "" ] ]
Very recently, the LHCb Collaboration at the Large Hadron Collider at CERN observed new resonance $X(4630)$. The $X(4630)$ is decoded as a charmoniumlike molecule with hidden-strange quantum number well in the one boson exchange mechanism. Especially, the study of its hidden-charmed decays explicitly shows the dominant...
hep-ph/9501298
Lawrence Hall
L. J. Hall and S. Raby
A Complete Supersymmetric SO(10) Model
18 pages
Phys.Rev.D51:6524-6531,1995
10.1103/PhysRevD.51.6524
LBL-36357
hep-ph
null
A complete supersymmetric SO(10) model is constructed, which is the most general consistent with certain $R$, discrete, and $U(1)$ flavor symmetries. The desired vacuum of the theory has vevs which lie in particular directions of group space. This leads to both doublet triplet splitting and to the generation of just ...
[ { "created": "Sat, 14 Jan 1995 01:33:23 GMT", "version": "v1" } ]
2016-09-01
[ [ "Hall", "L. J.", "" ], [ "Raby", "S.", "" ] ]
A complete supersymmetric SO(10) model is constructed, which is the most general consistent with certain $R$, discrete, and $U(1)$ flavor symmetries. The desired vacuum of the theory has vevs which lie in particular directions of group space. This leads to both doublet triplet splitting and to the generation of just fo...
hep-ph/0401234
Jean-Marc Richard
Xavier ARTRU (Lyon) and Jean-Marc RICHARD (Grenoble)
General Constraints on Spin Observables, Applications to Antiproton Proton to Antilambda Lambda and to Polarized Quark Distributions
Minor typos corrected, including normalization factors in Eqs. (2.1-2.2). 10 pages, latex, Invited talk by X. Artru at the Xth Advanced Research Workshop on High Energy Spin Physics (DUBNA-SPIN-03), Sept. 16-20, 2003, Dubna, to appear in the Proceedings
Phys.Part.Nucl. 35 (2004) S126-S132
null
LPSC 03-67 LYCEN 2004-04
hep-ph
null
We review the density matrix formalism and the positivity conditions for general multiple spin asymmetries, taking as an example the case antiproton + proton -> antiLambda + Lambda, in which one, two or three spins are analyzed. Some aspects related to quantum information and entangled states are discussed. Some posi...
[ { "created": "Thu, 29 Jan 2004 11:00:07 GMT", "version": "v1" }, { "created": "Wed, 4 Feb 2004 15:22:26 GMT", "version": "v2" } ]
2007-05-23
[ [ "ARTRU", "Xavier", "", "Lyon" ], [ "RICHARD", "Jean-Marc", "", "Grenoble" ] ]
We review the density matrix formalism and the positivity conditions for general multiple spin asymmetries, taking as an example the case antiproton + proton -> antiLambda + Lambda, in which one, two or three spins are analyzed. Some aspects related to quantum information and entangled states are discussed. Some positi...
2001.07430
Daniele Binosi
D. Binosi and A. Quadri
Off-shell renormalization in the presence of dimension 6 derivative operators. III. Operator mixing and $\beta$ functions
34 pages, no figures
null
10.1007/JHEP05(2020)141
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We evaluate the one-loop $\beta$ functions of all dimension 6 parity-preserving operators in the Abelian Higgs-Kibble model. No on-shell restrictions are imposed; and the (generalized) non-polynomial field redefinitions arising at one-loop order are fully taken into account. The operator mixing matrix is also compute...
[ { "created": "Tue, 21 Jan 2020 10:22:53 GMT", "version": "v1" } ]
2020-06-24
[ [ "Binosi", "D.", "" ], [ "Quadri", "A.", "" ] ]
We evaluate the one-loop $\beta$ functions of all dimension 6 parity-preserving operators in the Abelian Higgs-Kibble model. No on-shell restrictions are imposed; and the (generalized) non-polynomial field redefinitions arising at one-loop order are fully taken into account. The operator mixing matrix is also computed,...
2205.11150
Zhi-Feng Sun
Ze-Hua Cao, Wei He, Zhi-Feng Sun
The $Z_{cs}$ states and the mixture of hadronic molecule and diquark-anti-diquark components within effective field theory
6 pages, 1 figure
null
10.1103/PhysRevD.107.014017
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
In this work, we construct the Lagrangian describing meson-diquark interaction, such that the diquark-anti-diquark component as well as the molecular component is introduced when studying the $Z_{cs}$ states. In this way, the problem is solved that if only considering the $\bar{D}^{(*)}D_s^{(*)}$ components, the pote...
[ { "created": "Mon, 23 May 2022 09:24:07 GMT", "version": "v1" }, { "created": "Sun, 26 Jun 2022 12:27:23 GMT", "version": "v2" } ]
2023-02-01
[ [ "Cao", "Ze-Hua", "" ], [ "He", "Wei", "" ], [ "Sun", "Zhi-Feng", "" ] ]
In this work, we construct the Lagrangian describing meson-diquark interaction, such that the diquark-anti-diquark component as well as the molecular component is introduced when studying the $Z_{cs}$ states. In this way, the problem is solved that if only considering the $\bar{D}^{(*)}D_s^{(*)}$ components, the potent...
hep-ph/0510230
Rizos John
G.K. Leontaris and J. Rizos (Univ. of Ioannina)
A D-brane inspired U(3)_CxU(3)_LxU(3)_R model
10 pages, 2 figures
Phys.Lett. B632 (2006) 710-716
10.1016/j.physletb.2005.11.045
null
hep-ph
null
Motivated by D-brane scenarios, we consider a non-supersymmetric model based on the gauge symmetry U(3)_CxU(3)_LxU(3)_R$ which is equivalent to the SU(3)^3 ``trinification'' model supplemented by three U(1)s. Two U(1) combinations are anomalous while the third U(1)_Z' is anomaly free and contributes to the hypercharg...
[ { "created": "Tue, 18 Oct 2005 13:24:17 GMT", "version": "v1" } ]
2009-11-11
[ [ "Leontaris", "G. K.", "", "Univ. of Ioannina" ], [ "Rizos", "J.", "", "Univ. of Ioannina" ] ]
Motivated by D-brane scenarios, we consider a non-supersymmetric model based on the gauge symmetry U(3)_CxU(3)_LxU(3)_R$ which is equivalent to the SU(3)^3 ``trinification'' model supplemented by three U(1)s. Two U(1) combinations are anomalous while the third U(1)_Z' is anomaly free and contributes to the hypercharge ...
hep-ph/0102338
Viktor Nikonov
V.V. Anisovich, V.A. Nikonov, A.V. Sarantsev
Determination of hadronic partial widths for scalar-isoscalar resonances f0(980), f0(1300), f0(1500), f_0(1750) and the broad state f0(1530^{+90}_{-250})
Some typos were corrected
Phys.Atom.Nucl.65:1545-1552,2002; Yad.Fiz.65:1583-1590,2002
10.1134/1.1501667
null
hep-ph
null
In the article of V.V. Anisovich et al., Yad. Fiz. 63, 1489 (2000), the K-matrix solutions for the wave IJ^{PC}=00^{++} were obtained in the mass region 450 - 1900 MeV where four resonances f0(980), f0(1300), f0(1500), f0(1750) and the broad state f0(1530^{+90}_{-250}) are located. Based on these solutions, we determ...
[ { "created": "Wed, 28 Feb 2001 08:45:03 GMT", "version": "v1" }, { "created": "Tue, 6 Mar 2001 08:53:34 GMT", "version": "v2" } ]
2008-11-26
[ [ "Anisovich", "V. V.", "" ], [ "Nikonov", "V. A.", "" ], [ "Sarantsev", "A. V.", "" ] ]
In the article of V.V. Anisovich et al., Yad. Fiz. 63, 1489 (2000), the K-matrix solutions for the wave IJ^{PC}=00^{++} were obtained in the mass region 450 - 1900 MeV where four resonances f0(980), f0(1300), f0(1500), f0(1750) and the broad state f0(1530^{+90}_{-250}) are located. Based on these solutions, we determin...
hep-ph/9612330
Sucher
J. Sucher
Quantum Field Theory and the Helium Atom: 101 Years Later
23 pages, Latex, invited talk presented at "Quantum Systems: New Trends and Methods," at Minsk, June 1996; to appear in the proceedings
null
null
PP-97-61
hep-ph
null
Helium was first isolated on Earth in 1895, by Sir William Ramsey. One hundred and one years later, it seems like a good time to review our current theoretical understanding of the helium atom. Helium has played an important role in the development of both quantum mechanics and of quantum field theory. The early hist...
[ { "created": "Wed, 11 Dec 1996 20:33:16 GMT", "version": "v1" } ]
2007-05-23
[ [ "Sucher", "J.", "" ] ]
Helium was first isolated on Earth in 1895, by Sir William Ramsey. One hundred and one years later, it seems like a good time to review our current theoretical understanding of the helium atom. Helium has played an important role in the development of both quantum mechanics and of quantum field theory. The early histor...
2104.02982
Hyun Min Lee
Hyun Min Lee
Leptoquark Option for $B$-meson Anomalies and Leptonic Signatures
22 pages, 5 figures. v2: updated with the recent data from Fermilab E989, references added, v3: improved discussion, v4: typos corrected, accepted version for Phys. Rev. D
Phys. Rev. D 104, 015007 (2021)
10.1103/PhysRevD.104.015007
null
hep-ph
http://creativecommons.org/licenses/by-nc-sa/4.0/
We entertain the option of scalar leptoquarks to explain the anomalies in the semi-leptonic decays of $B$-mesons and the discrepancies in the lepton $(g-2)_l$'s including the recent results at Fermilab E989. The $R_{K^{(*)}}$ and $R_{D^{(*)}}$ anomalies can be accommodated by the specific couplings for triplet and si...
[ { "created": "Wed, 7 Apr 2021 08:16:49 GMT", "version": "v1" }, { "created": "Thu, 8 Apr 2021 13:58:46 GMT", "version": "v2" }, { "created": "Wed, 26 May 2021 15:58:26 GMT", "version": "v3" }, { "created": "Tue, 15 Jun 2021 03:37:50 GMT", "version": "v4" } ]
2021-07-14
[ [ "Lee", "Hyun Min", "" ] ]
We entertain the option of scalar leptoquarks to explain the anomalies in the semi-leptonic decays of $B$-mesons and the discrepancies in the lepton $(g-2)_l$'s including the recent results at Fermilab E989. The $R_{K^{(*)}}$ and $R_{D^{(*)}}$ anomalies can be accommodated by the specific couplings for triplet and sing...
2002.10518
Joao Silva
Francisco Faro, Jorge C. Romao, and Joao P. Silva
Nondecoupling in Multi-Higgs doublet models
New section added. Version to be published
null
10.1140/epjc/s10052-020-8217-y
CFTP/20-003
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider models with any number of Higgs doublets and study the conditions for decoupling. We show that, under very general circumstances, all the quadratic coefficients of the scalar potential must be present, except in special cases, which include terms related to directions of vanishing vacuum expectation value...
[ { "created": "Mon, 24 Feb 2020 20:20:32 GMT", "version": "v1" }, { "created": "Fri, 10 Jul 2020 14:11:33 GMT", "version": "v2" } ]
2020-08-26
[ [ "Faro", "Francisco", "" ], [ "Romao", "Jorge C.", "" ], [ "Silva", "Joao P.", "" ] ]
We consider models with any number of Higgs doublets and study the conditions for decoupling. We show that, under very general circumstances, all the quadratic coefficients of the scalar potential must be present, except in special cases, which include terms related to directions of vanishing vacuum expectation values....
1702.02949
Thomas Flacke
Thomas Flacke, Dong Woo Kang, Kyoungchul Kong, Gopolang Mohlabeng and Seong Chan Park
Electroweak Kaluza-Klein Dark Matter
29 pages, 10 figures, 1 table; v2: Fig 10 added, remarks on the potential influence of Sommerfeld enhancement added, typos corrected, references added, version published in JHEP
JHEP 1704 (2017) 041
10.1007/JHEP04(2017)041
CTPU-16-31, FERMILAB-PUB-16-554-T, PITT-PACC-1616
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In models with universal extra dimensions (UED), the lightest Kaluza-Klein excitation of neutral electroweak gauge bosons is a stable, weakly interacting massive particle and thus is a candidate for dark matter thanks to Kaluza-Klein parity. We examine concrete model realizations of such dark matter in the context of...
[ { "created": "Thu, 9 Feb 2017 19:00:02 GMT", "version": "v1" }, { "created": "Wed, 12 Apr 2017 06:11:54 GMT", "version": "v2" } ]
2017-04-13
[ [ "Flacke", "Thomas", "" ], [ "Kang", "Dong Woo", "" ], [ "Kong", "Kyoungchul", "" ], [ "Mohlabeng", "Gopolang", "" ], [ "Park", "Seong Chan", "" ] ]
In models with universal extra dimensions (UED), the lightest Kaluza-Klein excitation of neutral electroweak gauge bosons is a stable, weakly interacting massive particle and thus is a candidate for dark matter thanks to Kaluza-Klein parity. We examine concrete model realizations of such dark matter in the context of n...
2303.15497
Timon Emken
Riccardo Catena, Timon Emken, Marek Matas, Nicola A. Spaldin, Einar Urdshals
Direct searches for general dark matter-electron interactions with graphene detectors: Part I. Electronic structure calculations
29 pages, 12 figures, 5 appendices. The TB and DFT codes can be found under https://github.com/temken/Darphene and https://github.com/urdshals/QEdark-EFT respectively
null
null
null
hep-ph astro-ph.CO
http://creativecommons.org/licenses/by/4.0/
We develop a formalism to describe electron ejections from graphene-like targets by dark matter (DM) scattering for general forms of scalar and spin 1/2 DM-electron interactions and compare their applicability and accuracy within the density functional theory (DFT) and tight binding (TB) approaches. This formalism al...
[ { "created": "Mon, 27 Mar 2023 18:00:00 GMT", "version": "v1" } ]
2023-03-29
[ [ "Catena", "Riccardo", "" ], [ "Emken", "Timon", "" ], [ "Matas", "Marek", "" ], [ "Spaldin", "Nicola A.", "" ], [ "Urdshals", "Einar", "" ] ]
We develop a formalism to describe electron ejections from graphene-like targets by dark matter (DM) scattering for general forms of scalar and spin 1/2 DM-electron interactions and compare their applicability and accuracy within the density functional theory (DFT) and tight binding (TB) approaches. This formalism allo...
0803.0019
Mariangela Lisanti
Johan Alwall, My-Phuong Le, Mariangela Lisanti, Jay G. Wacker
Searching for Directly Decaying Gluinos at the Tevatron
5 pages, 2 figures, references added, typos corrected, figure 2 updated
Phys.Lett.B666:34-37,2008
10.1016/j.physletb.2008.06.065
SLAC-PUB-13149
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This letter describes how to perform searches over the complete kinematically-allowed parameter space for new pair-produced color octet particles that each subsequently decay into two jets plus missing energy at the Tevatron. This letter shows that current searches can miss otherwise discoverable spectra of particles...
[ { "created": "Fri, 29 Feb 2008 22:19:26 GMT", "version": "v1" }, { "created": "Thu, 12 Jun 2008 01:00:49 GMT", "version": "v2" } ]
2009-01-22
[ [ "Alwall", "Johan", "" ], [ "Le", "My-Phuong", "" ], [ "Lisanti", "Mariangela", "" ], [ "Wacker", "Jay G.", "" ] ]
This letter describes how to perform searches over the complete kinematically-allowed parameter space for new pair-produced color octet particles that each subsequently decay into two jets plus missing energy at the Tevatron. This letter shows that current searches can miss otherwise discoverable spectra of particles d...
hep-ph/9502317
David Garcia Muchart. Tn:
David Garcia, Joan Sola
THE QUANTUM CORRELATION R_b-R_c IN THE MSSM: MORE HINTS OF SUPERSYMMETRY?
14 pages + 5 figures. A postscript version can be obtained from anonymous ftp at ftp://ftp.ifae.es/anonymous/preprint/ft/uabft358.ps
Phys.Lett. B354 (1995) 335-344
10.1016/0370-2693(95)00658-8
UAB-FT-358
hep-ph
null
We study the correlation of quantum effects on the ratios R_b and R_c within the framework of the MSSM. While in the SM the quantity R_b is in discrepancy with experiment at the 2 \sigma level from below, and R_c differs from the experimental result at the 1.5 \sigma level from above, the theoretical prediction for b...
[ { "created": "Thu, 16 Feb 1995 10:58:21 GMT", "version": "v1" } ]
2009-10-28
[ [ "Garcia", "David", "" ], [ "Sola", "Joan", "" ] ]
We study the correlation of quantum effects on the ratios R_b and R_c within the framework of the MSSM. While in the SM the quantity R_b is in discrepancy with experiment at the 2 \sigma level from below, and R_c differs from the experimental result at the 1.5 \sigma level from above, the theoretical prediction for bot...
2106.06215
Hiroyuki Umeeda Dr.
Hiroyuki Umeeda
Quark-hadron duality for heavy meson mixings in the 't Hooft model
42 pages, 12 figures. v2: version accepted to JHEP
null
10.1007/JHEP09(2021)066
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study local quark-hadron duality and its violation for the $D^0-\bar{D}^0$, $B^0_d-\bar{B}^0_d$ and $B^0_s-\bar{B}^0_s$ mixings in the 't Hooft model, offering a laboratory to test QCD in two-dimensional spacetime together with the large-$N_c$ limit. With the 't Hooft equation being numerically solved, the width d...
[ { "created": "Fri, 11 Jun 2021 07:52:06 GMT", "version": "v1" }, { "created": "Wed, 25 Aug 2021 03:51:16 GMT", "version": "v2" } ]
2021-09-29
[ [ "Umeeda", "Hiroyuki", "" ] ]
We study local quark-hadron duality and its violation for the $D^0-\bar{D}^0$, $B^0_d-\bar{B}^0_d$ and $B^0_s-\bar{B}^0_s$ mixings in the 't Hooft model, offering a laboratory to test QCD in two-dimensional spacetime together with the large-$N_c$ limit. With the 't Hooft equation being numerically solved, the width dif...
0908.0315
Are R. Raklev
A. R. Raklev
Massive Metastable Charged (S)Particles at the LHC
16 pages, 1 figure. Minor changes to text, three references added. New version as published in MPLA
Mod.Phys.Lett.A24:1955-1969,2009
10.1142/S0217732309031648
CAVENDISH-HEP-2009-14, DAMTP-2009-53
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This brief review deals with recent interest in the prospects of observing a Massive Metastable Charged Particle (MMCP) at the Large Hadron Collider (LHC), and measuring its properties there. We discuss the motivation for scenarios with MMCPs in a phenomenological context, focusing on supersymmetric models that allow...
[ { "created": "Mon, 3 Aug 2009 19:08:53 GMT", "version": "v1" }, { "created": "Wed, 7 Oct 2009 16:10:03 GMT", "version": "v2" } ]
2014-11-20
[ [ "Raklev", "A. R.", "" ] ]
This brief review deals with recent interest in the prospects of observing a Massive Metastable Charged Particle (MMCP) at the Large Hadron Collider (LHC), and measuring its properties there. We discuss the motivation for scenarios with MMCPs in a phenomenological context, focusing on supersymmetric models that allow u...
1312.3186
Alexander Smirnov
Alexander V. Smirnov
FIESTA 3: cluster-parallelizable multiloop numerical calculations in physical regions
null
null
10.1016/j.cpc.2014.03.015
TTP13-047, SFB/CPP-13-109
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The goal of this paper is to present a new major release of the program FIESTA (Feynman Integral Evaluation by a Sector decomposiTion Approach). This version presents features like cluster-parallelization, new asymptotic expansion algorithms, calculations in physical regions, new sector-decomposition strategies, as w...
[ { "created": "Wed, 11 Dec 2013 14:28:39 GMT", "version": "v1" } ]
2015-06-18
[ [ "Smirnov", "Alexander V.", "" ] ]
The goal of this paper is to present a new major release of the program FIESTA (Feynman Integral Evaluation by a Sector decomposiTion Approach). This version presents features like cluster-parallelization, new asymptotic expansion algorithms, calculations in physical regions, new sector-decomposition strategies, as wel...
2211.05996
Logan Morrison
Logan Morrison, Stefano Profumo, Bibhushan Shakya
Sterile Neutrinos from Dark Matter: A $\nu$ Nightmare?
20 pages, 5 figures
null
null
null
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We provide a comprehensive study of observable spectra from dark matter pair-annihilation or decay into sterile (right-handed) neutrinos. This occurs, for instance, in neutrino portal dark matter models, where a sterile neutrino acts as the portal between dark matter and the Standard Model sector. The subsequent deca...
[ { "created": "Fri, 11 Nov 2022 04:41:24 GMT", "version": "v1" } ]
2022-11-14
[ [ "Morrison", "Logan", "" ], [ "Profumo", "Stefano", "" ], [ "Shakya", "Bibhushan", "" ] ]
We provide a comprehensive study of observable spectra from dark matter pair-annihilation or decay into sterile (right-handed) neutrinos. This occurs, for instance, in neutrino portal dark matter models, where a sterile neutrino acts as the portal between dark matter and the Standard Model sector. The subsequent decays...
1507.05070
Simon Badger
Simon Badger, Francesco Buciuni and Tiziano Peraro
One-loop triple collinear splitting amplitudes in QCD
31 pages, 5 figures
null
null
Edinburgh 2015/12
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the factorisation properties of one-loop scattering amplitudes in the triple collinear limit and extract the universal splitting amplitudes for processes initiated by a gluon. The splitting amplitudes are derived from the analytic Higgs plus four partons amplitudes. We present compact results for primitive h...
[ { "created": "Fri, 17 Jul 2015 18:39:29 GMT", "version": "v1" } ]
2015-07-20
[ [ "Badger", "Simon", "" ], [ "Buciuni", "Francesco", "" ], [ "Peraro", "Tiziano", "" ] ]
We study the factorisation properties of one-loop scattering amplitudes in the triple collinear limit and extract the universal splitting amplitudes for processes initiated by a gluon. The splitting amplitudes are derived from the analytic Higgs plus four partons amplitudes. We present compact results for primitive hel...
1003.0025
Andreas Fuhrer
Andreas Fuhrer, Aneesh V. Manohar, Jui-yu Chiu, Randall Kelley
Radiative Corrections to Longitudinal and Transverse Gauge Boson and Higgs Production
16 pages, 49 figures
Phys.Rev.D81:093005,2010
10.1103/PhysRevD.81.093005
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Radiative corrections to gauge boson and Higgs production computed recently using soft-collinear effective theory (SCET) require the one-loop high-scale matching coefficients in the standard model. We give explicit expressions for the matching coefficients for the effective field theory (EFT) operators for q qbar -> ...
[ { "created": "Fri, 26 Feb 2010 22:09:24 GMT", "version": "v1" } ]
2014-11-20
[ [ "Fuhrer", "Andreas", "" ], [ "Manohar", "Aneesh V.", "" ], [ "Chiu", "Jui-yu", "" ], [ "Kelley", "Randall", "" ] ]
Radiative corrections to gauge boson and Higgs production computed recently using soft-collinear effective theory (SCET) require the one-loop high-scale matching coefficients in the standard model. We give explicit expressions for the matching coefficients for the effective field theory (EFT) operators for q qbar -> VV...
2306.10247
Ritesh Ghosh
Ritesh Ghosh, Mohammad Yousuf Jamal and Manu Kurian
Impact of chiral asymmetry and magnetic field on passage of an energetic test parton in a QCD medium
9 pages, 5 figures
Phys. Rev. D 108, 054035 (2023)
10.1103/PhysRevD.108.054035
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We study the dependence of collisional energy loss of a test parton moving with a high velocity on the chiral imbalance and magnetic field in the QCD medium. A semi-classical approach is adopted to estimate the parton energy loss that takes into account the back-reaction on the parton due to the polarization effects ...
[ { "created": "Sat, 17 Jun 2023 03:23:53 GMT", "version": "v1" } ]
2023-10-03
[ [ "Ghosh", "Ritesh", "" ], [ "Jamal", "Mohammad Yousuf", "" ], [ "Kurian", "Manu", "" ] ]
We study the dependence of collisional energy loss of a test parton moving with a high velocity on the chiral imbalance and magnetic field in the QCD medium. A semi-classical approach is adopted to estimate the parton energy loss that takes into account the back-reaction on the parton due to the polarization effects of...
1104.5382
John Gracey
J.A. Gracey
Three loop QCD MOM beta-functions
9 latex pages
Phys.Lett.B700:79-85,2011
10.1016/j.physletb.2011.04.052
LTH 911
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present the full expressions for the QCD beta-function in the MOMggg, MOMq and MOMh renormalization schemes at three loops for an arbitrary colour group in the Landau gauge. The results for all three schemes are in very good agreement with the SU(3) numerical estimates provided by Chetyrkin and Seidensticker.
[ { "created": "Thu, 28 Apr 2011 13:15:41 GMT", "version": "v1" } ]
2011-08-19
[ [ "Gracey", "J. A.", "" ] ]
We present the full expressions for the QCD beta-function in the MOMggg, MOMq and MOMh renormalization schemes at three loops for an arbitrary colour group in the Landau gauge. The results for all three schemes are in very good agreement with the SU(3) numerical estimates provided by Chetyrkin and Seidensticker.
1008.5214
Mofazzal Azam
Mofazzal Azam, Jitesh R. Bhatt, Utpal Sarkar
Experimental signatures of cosmological neutrino condensation
5 pages, no figures, due to mistake in uploading, v2 and v3 has turned out to be identical. This version has lot of changes in the text. Extra references added
Phys.Lett.B697:7-10,2011
10.1016/j.physletb.2011.01.039
null
hep-ph cond-mat.supr-con gr-qc hep-ex hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Superfluid condensation of neutrinos of cosmological origin at a low enough temperature can provide simple and elegant solution to the problems of neutrino oscillations and the accelerated expansion of the universe. It would give rise to a late time cosmological constant of small magnitude and also generate tiny Majo...
[ { "created": "Tue, 31 Aug 2010 04:32:19 GMT", "version": "v1" }, { "created": "Sun, 10 Oct 2010 11:01:48 GMT", "version": "v2" }, { "created": "Mon, 1 Nov 2010 13:06:42 GMT", "version": "v3" }, { "created": "Tue, 2 Nov 2010 05:48:47 GMT", "version": "v4" } ]
2011-03-07
[ [ "Azam", "Mofazzal", "" ], [ "Bhatt", "Jitesh R.", "" ], [ "Sarkar", "Utpal", "" ] ]
Superfluid condensation of neutrinos of cosmological origin at a low enough temperature can provide simple and elegant solution to the problems of neutrino oscillations and the accelerated expansion of the universe. It would give rise to a late time cosmological constant of small magnitude and also generate tiny Majora...
2109.09345
Rafiqul Rahaman
Rafiqul Rahaman and Ritesh K. Singh
Breaking down the entire spectrum of spin correlations of a pair of particles involving fermions and gauge bosons
32 pages, 5 figures, and 3 tables
null
10.1016/j.nuclphysb.2022.115984
HRI-RECAPP-2021-010
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
We discuss a formalism for the spin correlations and polarizations in two-particle systems with spins half-half, half-one and one-one, and provide the connections between the polarizations and correlations with the joint angular distributions of decay products identifying the asymmetries for them. We demonstrate the ...
[ { "created": "Mon, 20 Sep 2021 07:54:54 GMT", "version": "v1" }, { "created": "Tue, 21 Mar 2023 11:07:29 GMT", "version": "v2" } ]
2023-03-22
[ [ "Rahaman", "Rafiqul", "" ], [ "Singh", "Ritesh K.", "" ] ]
We discuss a formalism for the spin correlations and polarizations in two-particle systems with spins half-half, half-one and one-one, and provide the connections between the polarizations and correlations with the joint angular distributions of decay products identifying the asymmetries for them. We demonstrate the fo...
1310.7389
Conrado Albertus-Torres
C. Albertus, E. Hernandez, J. Nieves
Exclusive $c \to s,d$ semileptonic decays of spin-1/2 and spin-3/2 $cb$ baryons
Contribution to the proceedings of the EFB 22 conference
null
10.1007/s00601-013-0739-5
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present results for exclusive semileptonic decay widths of ground state spin-$1/2$ and spin-$3/2$ $cb$ baryons corresponding to a $c\to s, d$ transition at the quark level. The relevance of hyperfine mixing in spin-1/2 $cb$ baryons is shown. Our form factors are compatible with heavy quark spin symmetry constraint...
[ { "created": "Mon, 28 Oct 2013 11:50:55 GMT", "version": "v1" } ]
2015-06-17
[ [ "Albertus", "C.", "" ], [ "Hernandez", "E.", "" ], [ "Nieves", "J.", "" ] ]
We present results for exclusive semileptonic decay widths of ground state spin-$1/2$ and spin-$3/2$ $cb$ baryons corresponding to a $c\to s, d$ transition at the quark level. The relevance of hyperfine mixing in spin-1/2 $cb$ baryons is shown. Our form factors are compatible with heavy quark spin symmetry constraints ...
0805.0179
Jubin Park
Sin Kyu Kang, C. S. Kim, Jubin Park
Test of the Littlest Higgs model through the correlation among W boson, top quark and Higgs masses
18 pages, 3 figures, Latex
Phys.Lett.B666:38-43,2008; Erratum-ibid.B698:323,2011
10.1016/j.physletb.2008.06.055 10.1016/j.physletb.2011.03.030
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivated by the recent precision measurements of the W boson mass and top quark mass, we test the Littlest Higgs model by confronting the prediction of M_W with the current and prospective measurements of M_W and M_t as well as through the correlation among M_W, M_t and Higgs mass. We argue that the current values a...
[ { "created": "Fri, 2 May 2008 07:39:41 GMT", "version": "v1" } ]
2011-04-05
[ [ "Kang", "Sin Kyu", "" ], [ "Kim", "C. S.", "" ], [ "Park", "Jubin", "" ] ]
Motivated by the recent precision measurements of the W boson mass and top quark mass, we test the Littlest Higgs model by confronting the prediction of M_W with the current and prospective measurements of M_W and M_t as well as through the correlation among M_W, M_t and Higgs mass. We argue that the current values and...
1408.1075
David Tucker-Smith
Isaac Hoenig, Gabriel Samach, and David Tucker-Smith
Searching for dilepton resonances below the Z mass at the LHC
references added
Phys. Rev. D 90, 075016 (2014)
10.1103/PhysRevD.90.075016
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider LHC searches for dilepton resonances in an intermediate mass range, $\sim 10 -80$ GeV. We adopt a kinetically mixed $Z'$ as an example of weakly coupled new physics that might have evaded detection at previous experiments but which could still be probed by LHC dilepton spectrum measurements in this mass r...
[ { "created": "Tue, 5 Aug 2014 19:35:50 GMT", "version": "v1" }, { "created": "Mon, 13 Oct 2014 13:48:18 GMT", "version": "v2" } ]
2014-10-29
[ [ "Hoenig", "Isaac", "" ], [ "Samach", "Gabriel", "" ], [ "Tucker-Smith", "David", "" ] ]
We consider LHC searches for dilepton resonances in an intermediate mass range, $\sim 10 -80$ GeV. We adopt a kinetically mixed $Z'$ as an example of weakly coupled new physics that might have evaded detection at previous experiments but which could still be probed by LHC dilepton spectrum measurements in this mass ran...
hep-ph/9510229
"M. R." Pennington
M.R. Pennington
Hadron '95 --- Summary: Part I
23 pages, latex, 1 PS-figure included, other figures can be obtained from the Author
null
null
DTP-95/86
hep-ph
null
Part I of this summary is concerned with selected results on natural parity states presented at this conference, in particular the glueball candidates the $f_0(1510)$ and $\xi(2230)$. Unnatural parity and exotic states are discussed by Suh-Urk Chung
[ { "created": "Thu, 5 Oct 1995 08:59:17 GMT", "version": "v1" } ]
2007-05-23
[ [ "Pennington", "M. R.", "" ] ]
Part I of this summary is concerned with selected results on natural parity states presented at this conference, in particular the glueball candidates the $f_0(1510)$ and $\xi(2230)$. Unnatural parity and exotic states are discussed by Suh-Urk Chung
hep-ph/0505158
Li Tong
Gang Li, Tong Li, Xue-Qian Li, Wen-Gan Ma, Shu-Min Zhao
Revisiting the OZI-forbidden Radiative Decays of Orthoquarkonia
18pages,2figures;final version to appear in Nucl.Phys. B
Nucl.Phys. B727 (2005) 301-317
10.1016/j.nuclphysb.2005.08.013
null
hep-ph
null
It is interesting to investigate the OZI-forbidden radiative orthoquarkonium decays $J/\psi\to \gamma\pi^0, \gamma\eta$ and $\gamma\eta'$ in perturbative QCD. In this work without the approximations adopted in literature we carry out a full one-loop calculation which involves integrations of 4-point and 5-point loop ...
[ { "created": "Wed, 18 May 2005 10:41:20 GMT", "version": "v1" }, { "created": "Tue, 24 May 2005 05:56:27 GMT", "version": "v2" }, { "created": "Sun, 18 Sep 2005 03:25:24 GMT", "version": "v3" } ]
2009-11-11
[ [ "Li", "Gang", "" ], [ "Li", "Tong", "" ], [ "Li", "Xue-Qian", "" ], [ "Ma", "Wen-Gan", "" ], [ "Zhao", "Shu-Min", "" ] ]
It is interesting to investigate the OZI-forbidden radiative orthoquarkonium decays $J/\psi\to \gamma\pi^0, \gamma\eta$ and $\gamma\eta'$ in perturbative QCD. In this work without the approximations adopted in literature we carry out a full one-loop calculation which involves integrations of 4-point and 5-point loop fu...
hep-ph/0004218
Don Weingarten
W. Lee and D. Weingarten
Reply to Boglione and Pennington
6 pages, 1 figure; to appear in PRD
Phys.Rev. D62 (2000) 038502
10.1103/PhysRevD.62.038502
IBMHET-00-1
hep-ph hep-lat
null
In a recent article we presented an argument which, we believe, shows to be incorrect an estimate, by Boglione and Pennington, of corrections to the valence (quenched) approximation predictions for properties of the lightest scalar glueball. Boglione and Pennington's reply to our article, it appears to us, fails to a...
[ { "created": "Mon, 24 Apr 2000 20:40:17 GMT", "version": "v1" } ]
2009-10-31
[ [ "Lee", "W.", "" ], [ "Weingarten", "D.", "" ] ]
In a recent article we presented an argument which, we believe, shows to be incorrect an estimate, by Boglione and Pennington, of corrections to the valence (quenched) approximation predictions for properties of the lightest scalar glueball. Boglione and Pennington's reply to our article, it appears to us, fails to add...
hep-ph/0309223
Theodore J. Allen
Theodore J. Allen, M. G. Olsson, Jeffrey R. Schmidt
QCD strings with spinning quarks
REVTeX4, 10 pages, no figures
Phys.Rev.D69:054013,2004
10.1103/PhysRevD.69.054013
null
hep-ph hep-th nucl-th
null
We construct a consistent action for a massive spinning quark on the end of a QCD string that leads to pure Thomas precession of the quark's spin. The string action is modified by the addition of Grassmann degrees of freedom to the string such that the equations of motion for the quark spin follow from boundary condi...
[ { "created": "Fri, 19 Sep 2003 16:53:53 GMT", "version": "v1" } ]
2011-07-19
[ [ "Allen", "Theodore J.", "" ], [ "Olsson", "M. G.", "" ], [ "Schmidt", "Jeffrey R.", "" ] ]
We construct a consistent action for a massive spinning quark on the end of a QCD string that leads to pure Thomas precession of the quark's spin. The string action is modified by the addition of Grassmann degrees of freedom to the string such that the equations of motion for the quark spin follow from boundary conditi...
1705.07917
Anders Kvellestad
The GAMBIT Collaboration: Peter Athron, Csaba Bal\'azs, Torsten Bringmann, Andy Buckley, Marcin Chrz\k{a}szcz, Jan Conrad, Jonathan M. Cornell, Lars A. Dal, Joakim Edsj\"o, Ben Farmer, Paul Jackson, Abram Krislock, Anders Kvellestad, Farvah Mahmoudi, Gregory D. Martinez, Antje Putze, Are Raklev, Christopher Rog...
A global fit of the MSSM with GAMBIT
31 pages, 14 figures; v2 matches version accepted by EPJC; v3 has corrected link to supplementary data on Zenodo
Eur.Phys.J. C77 (2017) no.12, 879
10.1140/epjc/s10052-017-5196-8
CERN-TH-2017-169, CoEPP-MN-17-11, NORDITA 2017-081, gambit-physics-2017
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the seven-dimensional Minimal Supersymmetric Standard Model (MSSM7) with the new GAMBIT software framework, with all parameters defined at the weak scale. Our analysis significantly extends previous weak-scale, phenomenological MSSM fits, by adding more and newer experimental analyses, improving the accuracy...
[ { "created": "Mon, 22 May 2017 18:01:52 GMT", "version": "v1" }, { "created": "Fri, 9 Mar 2018 12:03:54 GMT", "version": "v2" }, { "created": "Mon, 22 Oct 2018 22:51:00 GMT", "version": "v3" } ]
2020-08-06
[ [ "The GAMBIT Collaboration", "", "" ], [ "Athron", "Peter", "" ], [ "Balázs", "Csaba", "" ], [ "Bringmann", "Torsten", "" ], [ "Buckley", "Andy", "" ], [ "Chrząszcz", "Marcin", "" ], [ "Conrad", "Jan", "" ...
We study the seven-dimensional Minimal Supersymmetric Standard Model (MSSM7) with the new GAMBIT software framework, with all parameters defined at the weak scale. Our analysis significantly extends previous weak-scale, phenomenological MSSM fits, by adding more and newer experimental analyses, improving the accuracy a...
2009.01458
Y.H Ahn
Y. H. Ahn
Challenge to Anomalous Phenomena in Solar Neutrino
JHEP accepted version, 35 pages, 9 figures
null
10.1007/JHEP03(2021)115
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We suggest a would-be solution to the solar neutrino tension why solar neutrinos appear to mix differently from reactor antineutrinos, in theoretical respect. To do that, based on an extended theory with light sterile neutrinos added we derive a general transition probability of neutrinos born with one flavor tuning ...
[ { "created": "Thu, 3 Sep 2020 05:45:41 GMT", "version": "v1" }, { "created": "Tue, 9 Feb 2021 09:59:56 GMT", "version": "v2" } ]
2021-03-31
[ [ "Ahn", "Y. H.", "" ] ]
We suggest a would-be solution to the solar neutrino tension why solar neutrinos appear to mix differently from reactor antineutrinos, in theoretical respect. To do that, based on an extended theory with light sterile neutrinos added we derive a general transition probability of neutrinos born with one flavor tuning in...
1706.02336
Clarissa Siqueira
Giorgio Arcadi, Farinaldo S. Queiroz, Clarissa Siqueira
The Semi-Hooperon: Gamma-ray and anti-proton excesses in the Galactic Center
8 pages, 3 figures, version published in Phys. Lett. B
Physics Letters B 775 (2017)
10.1016/j.physletb.2017.10.065
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A puzzling excess in gamma-rays at GeV energies has been observed in the center of our galaxy using Fermi-LAT data. Its origin is still unknown, but it is well fitted by Weakly Interacting Massive Particles (WIMPs) annihilations into quarks with a cross section around $10^{-26}{\rm cm^3 s^{-1}}$ with masses of $20-50...
[ { "created": "Wed, 7 Jun 2017 18:50:22 GMT", "version": "v1" }, { "created": "Mon, 13 Nov 2017 11:14:00 GMT", "version": "v2" } ]
2017-11-15
[ [ "Arcadi", "Giorgio", "" ], [ "Queiroz", "Farinaldo S.", "" ], [ "Siqueira", "Clarissa", "" ] ]
A puzzling excess in gamma-rays at GeV energies has been observed in the center of our galaxy using Fermi-LAT data. Its origin is still unknown, but it is well fitted by Weakly Interacting Massive Particles (WIMPs) annihilations into quarks with a cross section around $10^{-26}{\rm cm^3 s^{-1}}$ with masses of $20-50$~...
hep-ph/0607130
Jean-Philippe Lansberg
J.P. Lansberg, B. Pire, L. Szymanowski
Backward DVCS and Proton to Photon Transition Distribution Amplitudes
8 pages, 3 figures, LaTeX, uses espcrc1.sty (included). Invited talk at the Vth International Conference on Perspectives in Hadronic Physics, 22-26 May 2006, ICTP, Trieste, Italy
Nucl.Phys.A782:16-23,2007
10.1016/j.nuclphysa.2006.10.014
null
hep-ph hep-ex nucl-th
null
We analyse deeply-virtual Compton scattering on a proton target, gamma* P -> P' gamma in the backward region and in the scaling regime. We define the transition distribution amplitudes which describe the proton to photon transition. Model-independent predictions are given to test this description, for current or plan...
[ { "created": "Wed, 12 Jul 2006 09:35:52 GMT", "version": "v1" } ]
2008-11-26
[ [ "Lansberg", "J. P.", "" ], [ "Pire", "B.", "" ], [ "Szymanowski", "L.", "" ] ]
We analyse deeply-virtual Compton scattering on a proton target, gamma* P -> P' gamma in the backward region and in the scaling regime. We define the transition distribution amplitudes which describe the proton to photon transition. Model-independent predictions are given to test this description, for current or planne...
2110.10822
Kohei Kamada
Soichiro Hashiba, Kohei Kamada, and Hiromasa Nakatsuka
Gauge Field Production and Schwinger Reheating in Runaway Axion Inflation
48 pages, 3 figures
null
10.1088/1475-7516/2022/04/058
RESCEU-23/21
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In a class of (pseudoscalar) inflation, inflationary phase is followed by a kination phase, where the Universe is dominated by the kinetic energy of the inflaton that runs away in a vanishing scalar potential. In this class of postinflationary evolution of the Universe, reheating of the Universe cannot be achieved by...
[ { "created": "Wed, 20 Oct 2021 23:39:13 GMT", "version": "v1" } ]
2022-05-11
[ [ "Hashiba", "Soichiro", "" ], [ "Kamada", "Kohei", "" ], [ "Nakatsuka", "Hiromasa", "" ] ]
In a class of (pseudoscalar) inflation, inflationary phase is followed by a kination phase, where the Universe is dominated by the kinetic energy of the inflaton that runs away in a vanishing scalar potential. In this class of postinflationary evolution of the Universe, reheating of the Universe cannot be achieved by t...
1110.1253
Antonio Mecozzi
Antonio Mecozzi and Marco Bellini
Superluminal group velocity of neutrinos
null
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We suggest a possible interpretation of the recent observation by the OPERA collaboration of superluminal propagation of neutrinos. We show that it is in principle possible that the group velocity of neutrinos exceeds the speed of light without violating special relativity.
[ { "created": "Thu, 6 Oct 2011 13:25:06 GMT", "version": "v1" }, { "created": "Wed, 12 Oct 2011 09:13:47 GMT", "version": "v2" } ]
2011-10-13
[ [ "Mecozzi", "Antonio", "" ], [ "Bellini", "Marco", "" ] ]
We suggest a possible interpretation of the recent observation by the OPERA collaboration of superluminal propagation of neutrinos. We show that it is in principle possible that the group velocity of neutrinos exceeds the speed of light without violating special relativity.
hep-ph/9802275
Javier Ferrandis
Javier Ferrandis
Charged Scalar Phenomenology in the Bilinear R-Parity Breaking Model
6 pages, including 3 figures, Latex. Talk given at the International Workshop "Beyond the Standard Model: From Theory to Experiment", 13--17 October 1997, Valencia, Spain
null
null
IFIC/98-17, FTUV/98-17
hep-ph
null
We consider the charged scalar boson phenomenology in the bilinear R-parity breaking model which induces a mixing between staus and the charged Higgs boson. The charged Higgs boson mass can be lower than expected in the MSSM, even before including radiative corrections. The R-parity violating decay rates can be compa...
[ { "created": "Mon, 9 Feb 1998 11:47:15 GMT", "version": "v1" } ]
2007-05-23
[ [ "Ferrandis", "Javier", "" ] ]
We consider the charged scalar boson phenomenology in the bilinear R-parity breaking model which induces a mixing between staus and the charged Higgs boson. The charged Higgs boson mass can be lower than expected in the MSSM, even before including radiative corrections. The R-parity violating decay rates can be compara...
2011.10933
Zahra Tabrizi
Zahra Tabrizi, Shunsaku Horiuchi
Flavor Triangle of the Diffuse Supernova Neutrino Background
22 pages, 11 figures, v2: references and comments added, analysis improved, agrees the version published in JCAP
JCAP 05 (2021) 011
10.1088/1475-7516/2021/05/011
null
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Although Galactic core-collapse supernovae (SNe) only happen a few times per century, every hour a vast number of explosions happen in the whole universe, emitting energy in the form of neutrinos, resulting in the diffuse supernova neutrino background (DSNB). The DSNB has not yet been detected, but Super-Kamiokande d...
[ { "created": "Sun, 22 Nov 2020 04:44:37 GMT", "version": "v1" }, { "created": "Tue, 18 May 2021 18:53:19 GMT", "version": "v2" } ]
2021-05-20
[ [ "Tabrizi", "Zahra", "" ], [ "Horiuchi", "Shunsaku", "" ] ]
Although Galactic core-collapse supernovae (SNe) only happen a few times per century, every hour a vast number of explosions happen in the whole universe, emitting energy in the form of neutrinos, resulting in the diffuse supernova neutrino background (DSNB). The DSNB has not yet been detected, but Super-Kamiokande dop...
hep-ph/9904253
J. Gunion
R. Casalbuoni, A. Deandrea, S. De Curtis, D. Dominici, R. Gatto and J.F. Gunion
A New Technique for Determining the Properties of a Narrow $s$-channel Resonance at a Muon Collider
4 pages, 1 figure
Phys.Rev.Lett. 83 (1999) 1525-1528
10.1103/PhysRevLett.83.1525
UCD-99-7
hep-ph
null
We explore an alternative to the usual procedure of scanning for determining the properties of a narrow $s$-channel resonance. By varying the beam energy resolution while sitting on the resonance peak, the width and branching ratios of the resonance can be determined. The statistical accuracy achieved is superior to ...
[ { "created": "Tue, 6 Apr 1999 23:40:57 GMT", "version": "v1" } ]
2009-10-31
[ [ "Casalbuoni", "R.", "" ], [ "Deandrea", "A.", "" ], [ "De Curtis", "S.", "" ], [ "Dominici", "D.", "" ], [ "Gatto", "R.", "" ], [ "Gunion", "J. F.", "" ] ]
We explore an alternative to the usual procedure of scanning for determining the properties of a narrow $s$-channel resonance. By varying the beam energy resolution while sitting on the resonance peak, the width and branching ratios of the resonance can be determined. The statistical accuracy achieved is superior to th...
hep-ph/0207131
Mikolaj Misiak
Andrzej J. Buras and Mikolaj Misiak
B -> X_s gamma after completion of the NLO QCD calculations
Submitted to the special issue of Acta Physica Polonica B dedicated to Stefan Pokorski on the occasion of his 60th birthday. 14 pages, 5 figures, uses graphicx
Acta Phys.Polon. B33 (2002) 2597-2612
null
TUM-HEP-468/02, IFT-24/2002
hep-ph
null
Several years ago, Stefan Pokorski, Manfred Muenz and us outlined a program for calculation of the NLO QCD corrections to the weak radiative B meson decay B -> X_s gamma. Very recently, just before the 60th birthday of Stefan Pokorski, this program has been formally completed. In the present paper, we summarize the e...
[ { "created": "Wed, 10 Jul 2002 10:14:18 GMT", "version": "v1" } ]
2007-05-23
[ [ "Buras", "Andrzej J.", "" ], [ "Misiak", "Mikolaj", "" ] ]
Several years ago, Stefan Pokorski, Manfred Muenz and us outlined a program for calculation of the NLO QCD corrections to the weak radiative B meson decay B -> X_s gamma. Very recently, just before the 60th birthday of Stefan Pokorski, this program has been formally completed. In the present paper, we summarize the exi...
2405.12231
Kapil Saraswat
Kapil Saraswat, Prashanta Kumar Khandai, Deependra Singh Rawat, and Venktesh Singh
Medium effects of charged-hadron production in $p+Pb$ and $Pb+Pb$ collisions at LHC energies using modified Tsallis distribution
arXiv admin note: substantial text overlap with arXiv:1706.04860
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
The transverse momentum ($p_T$) spectra of charged hadrons in $p+p$, $p+Pb$ and $Pb+Pb$ collisions at $\sqrt {s_{NN}} = 5.02$ TeV are presented here within the rapidity range of $-2.5<y<2.0$. We study the medium effects, which is produced by heavy ion collisions, on the behaviour of charged hadrons, by using a phenom...
[ { "created": "Sat, 11 May 2024 16:52:46 GMT", "version": "v1" }, { "created": "Thu, 6 Jun 2024 17:13:54 GMT", "version": "v2" } ]
2024-06-07
[ [ "Saraswat", "Kapil", "" ], [ "Khandai", "Prashanta Kumar", "" ], [ "Rawat", "Deependra Singh", "" ], [ "Singh", "Venktesh", "" ] ]
The transverse momentum ($p_T$) spectra of charged hadrons in $p+p$, $p+Pb$ and $Pb+Pb$ collisions at $\sqrt {s_{NN}} = 5.02$ TeV are presented here within the rapidity range of $-2.5<y<2.0$. We study the medium effects, which is produced by heavy ion collisions, on the behaviour of charged hadrons, by using a phenomen...
1402.4400
Pavel Filianin
P. E. Filianin, K. Blaum, S. A. Eliseev, L. Gastaldo, Yu. N. Novikov, V. M. Shabaev, I. I. Tupitsyn, J. Vergados
On the keV sterile neutrino search in electron capture
16 pages, 9 figures, 2 tables
null
10.1088/0954-3899/41/9/095004
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A joint effort of cryogenic microcalorimetry (CM) and high-precision Penning-trap mass spectrometry (PT-MS) in investigating atomic orbital electron capture (EC) can shed light on the possible existence of heavy sterile neutrinos with masses from 0.5 to 100 keV. Sterile neutrinos are expected to perturb the shape of ...
[ { "created": "Tue, 18 Feb 2014 16:50:11 GMT", "version": "v1" } ]
2015-06-18
[ [ "Filianin", "P. E.", "" ], [ "Blaum", "K.", "" ], [ "Eliseev", "S. A.", "" ], [ "Gastaldo", "L.", "" ], [ "Novikov", "Yu. N.", "" ], [ "Shabaev", "V. M.", "" ], [ "Tupitsyn", "I. I.", "" ], [ "Verga...
A joint effort of cryogenic microcalorimetry (CM) and high-precision Penning-trap mass spectrometry (PT-MS) in investigating atomic orbital electron capture (EC) can shed light on the possible existence of heavy sterile neutrinos with masses from 0.5 to 100 keV. Sterile neutrinos are expected to perturb the shape of th...
1507.01887
Terry Pilkington
Heather E. Logan, Travis A. Martin, Terry Pilkington
LHC constraints on large scalar multiplet models with a $Z_2$ symmetry
19 pages, 64 figures; V2: reference and footnote #2 added, version submitted to PRD; V3: typos corrected, matches published version
Phys. Rev. D 92, 055028 (2015)
10.1103/PhysRevD.92.055028
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the LHC search constraints on models that extend the Standard Model (SM) with an inert, complex scalar electroweak multiplet, $\Sigma$, with isospin T=5/2 (sextet) or T=7/2 (octet) and identical hypercharge to the SM Higgs doublet. Imposing a global $Z_2$ symmetry under which $\Sigma \to -\Sigma$, the lighte...
[ { "created": "Tue, 7 Jul 2015 17:25:36 GMT", "version": "v1" }, { "created": "Wed, 22 Jul 2015 18:49:28 GMT", "version": "v2" }, { "created": "Tue, 8 Sep 2015 14:15:13 GMT", "version": "v3" } ]
2015-09-30
[ [ "Logan", "Heather E.", "" ], [ "Martin", "Travis A.", "" ], [ "Pilkington", "Terry", "" ] ]
We study the LHC search constraints on models that extend the Standard Model (SM) with an inert, complex scalar electroweak multiplet, $\Sigma$, with isospin T=5/2 (sextet) or T=7/2 (octet) and identical hypercharge to the SM Higgs doublet. Imposing a global $Z_2$ symmetry under which $\Sigma \to -\Sigma$, the lightest...
hep-ph/9706544
Massimo Pietroni
Massimo Pietroni
Gauge-Invariant Renormalization Group at Finite Temperature and Debye Screening
5 pages (LaTeX) + 2 figures, To appear on the proceedings of "Strong and Electroweak Matter '97"
null
null
null
hep-ph
null
I describe an application of Wilson Renormalization group to the real time formalism of finite temperature field theory. The approach has two nice features: 1) the RG flow equations describe non-perturbatively the effect of thermal fluctuations only, and, 2) the flow is gauge invariant. I then describe the applicatio...
[ { "created": "Mon, 30 Jun 1997 11:24:28 GMT", "version": "v1" } ]
2007-05-23
[ [ "Pietroni", "Massimo", "" ] ]
I describe an application of Wilson Renormalization group to the real time formalism of finite temperature field theory. The approach has two nice features: 1) the RG flow equations describe non-perturbatively the effect of thermal fluctuations only, and, 2) the flow is gauge invariant. I then describe the application ...
1212.0049
Matin Mojaza
Matin Mojaza, Stanley J. Brodsky and Xing-Gang Wu
A Systematic All-Orders Method to Eliminate Renormalization-Scale and Scheme Ambiguities in PQCD
5 pages, 1 figure, revised to match the published version
null
10.1103/PhysRevLett.110.192001
SLAC-PUB-15299; CP3-Origins-2012-032; DIAS-2012-33
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We introduce a generalization of the conventional renormalization schemes used in dimensional regularization, which illuminates the renormalization scheme and scale ambiguities of pQCD predictions, exposes the general pattern of nonconformal {\beta_i}-terms, and reveals a special degeneracy of the terms in the pertur...
[ { "created": "Sat, 1 Dec 2012 01:00:23 GMT", "version": "v1" }, { "created": "Wed, 16 Jan 2013 07:18:22 GMT", "version": "v2" }, { "created": "Wed, 19 Jun 2013 16:11:08 GMT", "version": "v3" } ]
2013-06-20
[ [ "Mojaza", "Matin", "" ], [ "Brodsky", "Stanley J.", "" ], [ "Wu", "Xing-Gang", "" ] ]
We introduce a generalization of the conventional renormalization schemes used in dimensional regularization, which illuminates the renormalization scheme and scale ambiguities of pQCD predictions, exposes the general pattern of nonconformal {\beta_i}-terms, and reveals a special degeneracy of the terms in the perturba...
hep-ph/0405282
Nobuyuki Sawado
Nobuyuki Sawado and Noriko Shiiki
Multi-soliton solutions in the chiral quark soliton model
59 pages, 11 figures; invited paper for "Progress in Soliton Research", Nova Science Publishers (NY)
null
null
null
hep-ph
null
In this article a series of solutions with higher baryon numbers in the chiral quark soliton model are reported. The chiral quark soliton model is a simple quark model that incorporates the basic features of QCD. The B=2 axially symmetric soliton solution within this model was obtained numerically. For $B \ge 3$, in ...
[ { "created": "Fri, 28 May 2004 10:34:45 GMT", "version": "v1" } ]
2007-05-23
[ [ "Sawado", "Nobuyuki", "" ], [ "Shiiki", "Noriko", "" ] ]
In this article a series of solutions with higher baryon numbers in the chiral quark soliton model are reported. The chiral quark soliton model is a simple quark model that incorporates the basic features of QCD. The B=2 axially symmetric soliton solution within this model was obtained numerically. For $B \ge 3$, in a ...
1011.3046
David McKeen
David McKeen and Maxim Pospelov
Muon Capture Constraints on Sterile Neutrino Properties
5 pages, 5 figures, revtex4-1. v2: updated to consider anisotropic sterile neutrino decay and a way of relaxing the RMC constraints by introducing another massive sterile neutrino; improved estimate of decay probability in target
Phys.Rev.D82:113018,2010
10.1103/PhysRevD.82.113018
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show that ordinary and radiative muon capture impose stringent constraints on sterile neutrino properties. In particular, we consider a sterile neutrino with a mass between 40 to $80 {\rm MeV}$ that has a large mixing with the muon neutrino and decays predominantly into a photon and light neutrinos due to a large ...
[ { "created": "Fri, 12 Nov 2010 21:01:09 GMT", "version": "v1" }, { "created": "Mon, 6 Dec 2010 06:18:27 GMT", "version": "v2" } ]
2011-01-12
[ [ "McKeen", "David", "" ], [ "Pospelov", "Maxim", "" ] ]
We show that ordinary and radiative muon capture impose stringent constraints on sterile neutrino properties. In particular, we consider a sterile neutrino with a mass between 40 to $80 {\rm MeV}$ that has a large mixing with the muon neutrino and decays predominantly into a photon and light neutrinos due to a large tr...
1909.03623
Yoshiharu Kawamura
Yoshiharu Kawamura
A bottom-up approach to fermion mass hierarchy: a case with vector-like fermions
25 pages, title changed, appendix added and so on
Prog Theor Exp Phys (2020)
10.1093/ptep/ptaa046
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a bottom-up approach that a structure of a high-energy physics is explored by accumulating existence proofs and/or no-go theorems in the standard model or its extension. As an illustration, we study fermion mass hierarchies based on an extension of the standard model with vector-like fermions. It is shown ...
[ { "created": "Mon, 9 Sep 2019 03:50:24 GMT", "version": "v1" }, { "created": "Sun, 15 Mar 2020 04:58:03 GMT", "version": "v2" } ]
2020-05-06
[ [ "Kawamura", "Yoshiharu", "" ] ]
We propose a bottom-up approach that a structure of a high-energy physics is explored by accumulating existence proofs and/or no-go theorems in the standard model or its extension. As an illustration, we study fermion mass hierarchies based on an extension of the standard model with vector-like fermions. It is shown th...
1205.1011
Johann Rafelski
Jeremiah Birrell and Johann Rafelski (Arizona)
Possibility of Electroweak Phase Transition at Low Temperature
5 pages and figures, to be submitted to PLB
null
null
null
hep-ph hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study models of strong first order `low' temperature electroweak phase transition. To achieve this we propose a class of Higgs effective potential models which preserve the known features of the present day massive phase. However, the properties of the symmetry restored massless phase are modified in a way that fo...
[ { "created": "Fri, 4 May 2012 17:14:26 GMT", "version": "v1" } ]
2012-05-07
[ [ "Birrell", "Jeremiah", "", "Arizona" ], [ "Rafelski", "Johann", "", "Arizona" ] ]
We study models of strong first order `low' temperature electroweak phase transition. To achieve this we propose a class of Higgs effective potential models which preserve the known features of the present day massive phase. However, the properties of the symmetry restored massless phase are modified in a way that for ...
hep-ph/9305308
null
Jose F. Nieves, Palash B. Pal
Induced Charge of Neutrinos in a Medium
11 pages (LATEX), including figures drawn by LATEX, preprint number DOE-ER\,40757-012, CPP-93-12, LTP-038-UPR [One reference added; minor stylistic changes in the text. This version will appear in Phys Rev D]
Phys.Rev.D49:1398-1403,1994
10.1103/PhysRevD.49.1398
null
hep-ph
null
Neutrinos can polarize a medium due to their weak interaction. This can manifest itself as an effective induced charge of the neutrino. We show how it is related to the Debye screening length in a plasma, first using the results of the 1-loop calculation of the neutrino electromagnetic vertex and then in general to a...
[ { "created": "Mon, 24 May 1993 20:49:23 GMT", "version": "v1" }, { "created": "Tue, 21 Dec 1993 20:14:56 GMT", "version": "v2" } ]
2014-11-17
[ [ "Nieves", "Jose F.", "" ], [ "Pal", "Palash B.", "" ] ]
Neutrinos can polarize a medium due to their weak interaction. This can manifest itself as an effective induced charge of the neutrino. We show how it is related to the Debye screening length in a plasma, first using the results of the 1-loop calculation of the neutrino electromagnetic vertex and then in general to all...
hep-ph/9905476
Francesca Rosati
Antonio Masiero and Francesca Rosati (SISSA)
Breakthroughs on the Dark Matter Issue
13 pages; Talk given by Antonio Masiero at the 8^th International Workshop on Neutrino Telescopes, 23-26 Feb. 1999, Venice, Italy. To be published in the Proceedings
In `Venice99-Neutrino telescopes' vol.2, 169 (1999)
null
null
hep-ph astro-ph
null
Last year observations had a profound impact on our views on the amount and nature of dark matter in the universe. We give a brief review of the recent history of dark matter models beyond the pure cold dark matter universe. In view of the most recent cosmological data, we then go on to discuss models with a positive...
[ { "created": "Tue, 25 May 1999 19:48:25 GMT", "version": "v1" } ]
2007-05-23
[ [ "Masiero", "Antonio", "", "SISSA" ], [ "Rosati", "Francesca", "", "SISSA" ] ]
Last year observations had a profound impact on our views on the amount and nature of dark matter in the universe. We give a brief review of the recent history of dark matter models beyond the pure cold dark matter universe. In view of the most recent cosmological data, we then go on to discuss models with a positive c...
2308.13596
Jo\~ao Barata
Jo\~ao Barata, Wenjie Gong, Raju Venugopalan
Realtime dynamics of hyperon spin correlations from string fragmentation in a deformed four-flavor Schwinger model
9 pages, 5 figures, v2: Additional results on real time evolution. Expanded discussion of model
null
null
null
hep-ph nucl-th quant-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Self-polarizing weak decays of $\Lambda$-hyperons provide unique insight into the role of entanglement in the fragmentation of QCD strings through measurements of the spin correlations of $\Lambda{\bar \Lambda}$-pairs produced in collider experiments. The simplest quantum field theory representing the underlying part...
[ { "created": "Fri, 25 Aug 2023 18:00:01 GMT", "version": "v1" }, { "created": "Mon, 26 Feb 2024 13:39:18 GMT", "version": "v2" } ]
2024-02-27
[ [ "Barata", "João", "" ], [ "Gong", "Wenjie", "" ], [ "Venugopalan", "Raju", "" ] ]
Self-polarizing weak decays of $\Lambda$-hyperons provide unique insight into the role of entanglement in the fragmentation of QCD strings through measurements of the spin correlations of $\Lambda{\bar \Lambda}$-pairs produced in collider experiments. The simplest quantum field theory representing the underlying parton...