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hep-ph/0702055
Lorenzo Salcedo L.
E. Megias, E. Ruiz Arriola, L.L. Salcedo
The quark-antiquark potential at finite temperature and the dimension two gluon condensate
9 pages, 5 figures
Phys.Rev.D75:105019,2007
10.1103/PhysRevD.75.105019
null
hep-ph
null
A recently proposed phenomenological model, which includes non perturbative effects from dimension two gluon condensates, is applied to analyze the available lattice data for the heavy quark free energy in the deconfined phase of quenched QCD. For large $q\bar{q}$ separations we recover previous results for the Polya...
[ { "created": "Mon, 5 Feb 2007 16:48:17 GMT", "version": "v1" } ]
2008-11-26
[ [ "Megias", "E.", "" ], [ "Arriola", "E. Ruiz", "" ], [ "Salcedo", "L. L.", "" ] ]
A recently proposed phenomenological model, which includes non perturbative effects from dimension two gluon condensates, is applied to analyze the available lattice data for the heavy quark free energy in the deconfined phase of quenched QCD. For large $q\bar{q}$ separations we recover previous results for the Polyako...
hep-ph/0210039
Cong-Feng Qiao
Jiro Kodaira and Cong-Feng Qiao
Detect Gluon Polarisation at BNL-RHIC Through J/\psi Pair Production Process
Contribution to ICHEP, July 24 - 27, 2002. Amsterdam, the Netherlands
null
10.1016/S0920-5632(03)90590-1
null
hep-ph
null
Our recent study shows that the double spin asymmetry of J/\psi pair production is measurable in polarised p-p collision at RHIC in near future. And hence it enables us to extract the polarised gluon distribution function \Delta G (x).
[ { "created": "Wed, 2 Oct 2002 16:31:17 GMT", "version": "v1" } ]
2009-11-07
[ [ "Kodaira", "Jiro", "" ], [ "Qiao", "Cong-Feng", "" ] ]
Our recent study shows that the double spin asymmetry of J/\psi pair production is measurable in polarised p-p collision at RHIC in near future. And hence it enables us to extract the polarised gluon distribution function \Delta G (x).
2302.07288
Emanuele Gendy Abd El Sayed
Quentin Bonnefoy, Emanuele Gendy, Christophe Grojean, Joshua T. Ruderman
Opportunistic CP Violation
34 p. + 29 p. of appendices, 6 figures. v2: Table 7 added, some extended discussions, matches JHEP version
JHEP 06 (2023) 141
10.1007/JHEP06(2023)141
DESY 23-018, HU-EP-22/39, TUM-HEP-1453/23
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the electroweak sector of the Standard Model, CP violation arises through a very particular interplay between the three quark generations, as described by the Cabibbo--Kobayashi--Maskawa (CKM) mechanism and the single Jarlskog invariant $J_4$. Once generalized to the Standard Model Effective Field Theory (SMEFT), ...
[ { "created": "Tue, 14 Feb 2023 19:04:57 GMT", "version": "v1" }, { "created": "Wed, 5 Jul 2023 17:37:32 GMT", "version": "v2" } ]
2023-07-07
[ [ "Bonnefoy", "Quentin", "" ], [ "Gendy", "Emanuele", "" ], [ "Grojean", "Christophe", "" ], [ "Ruderman", "Joshua T.", "" ] ]
In the electroweak sector of the Standard Model, CP violation arises through a very particular interplay between the three quark generations, as described by the Cabibbo--Kobayashi--Maskawa (CKM) mechanism and the single Jarlskog invariant $J_4$. Once generalized to the Standard Model Effective Field Theory (SMEFT), th...
1402.1164
David Stone
Benjam\'in Grinstein, David Pirtskhalava, David Stone, Patipan Uttayarat
$B$ decays to two pseudoscalars and a generalized $\Delta I = \frac{1}{2}$ rule
10 pages, 5 figures
Phys. Rev. D 89, 114014 (2014)
10.1103/PhysRevD.89.114014
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We perform an isospin analysis of $B$ decays to two pseudoscalars. The analysis extracts appropriate CKM and short distance loop factors to allow for comparison of non-perturbative QCD effects in the reduced matrix elements of the amplitudes. In decays where penguin diagrams compete with tree-level diagrams we find t...
[ { "created": "Wed, 5 Feb 2014 21:00:03 GMT", "version": "v1" } ]
2014-06-18
[ [ "Grinstein", "Benjamín", "" ], [ "Pirtskhalava", "David", "" ], [ "Stone", "David", "" ], [ "Uttayarat", "Patipan", "" ] ]
We perform an isospin analysis of $B$ decays to two pseudoscalars. The analysis extracts appropriate CKM and short distance loop factors to allow for comparison of non-perturbative QCD effects in the reduced matrix elements of the amplitudes. In decays where penguin diagrams compete with tree-level diagrams we find tha...
1311.6075
Wei Liao
Wei Liao, Xiao-Hong Wu and Hang Zhou
Electron events from the scattering with solar neutrinos in the search of keV scale sterile neutrino dark matter
23 pages, 5 figures
Phys. Rev. D 89, 093017 (2014)
10.1103/PhysRevD.89.093017
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In a previous work we showed that keV scale sterile neutrino dark matter $\nu_s$ is possible to be detected in $\beta$ decay experiment using radioactive sources such as $^3$T or $^{106}$Ru. The signals of this dark matter candidate are mono-energetic electrons produced in neutrino capture process $\nu_s + N' \to N +...
[ { "created": "Sun, 24 Nov 2013 03:26:46 GMT", "version": "v1" } ]
2014-05-28
[ [ "Liao", "Wei", "" ], [ "Wu", "Xiao-Hong", "" ], [ "Zhou", "Hang", "" ] ]
In a previous work we showed that keV scale sterile neutrino dark matter $\nu_s$ is possible to be detected in $\beta$ decay experiment using radioactive sources such as $^3$T or $^{106}$Ru. The signals of this dark matter candidate are mono-energetic electrons produced in neutrino capture process $\nu_s + N' \to N +e^...
1211.5409
Chang Sub Shin
Ki-Young Choi, Eung Jin Chun, and Chang Sub Shin
Dark matter asymmetry in supersymmetric Dirac leptogenesis
6 pages, no fig
null
10.1016/j.physletb.2013.04.020
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss asymmetric or symmetric dark matter candidate in the supersymmetric Dirac leptogenesis scenario. By introducing a singlet superfield coupling to right-handed neutrinos, the overabundance problem of dark matter can be evaded and various possibilities for dark matter candidate arise. If the singlino is the l...
[ { "created": "Fri, 23 Nov 2012 03:58:17 GMT", "version": "v1" } ]
2015-06-12
[ [ "Choi", "Ki-Young", "" ], [ "Chun", "Eung Jin", "" ], [ "Shin", "Chang Sub", "" ] ]
We discuss asymmetric or symmetric dark matter candidate in the supersymmetric Dirac leptogenesis scenario. By introducing a singlet superfield coupling to right-handed neutrinos, the overabundance problem of dark matter can be evaded and various possibilities for dark matter candidate arise. If the singlino is the lig...
2010.13156
Rahul Chhabra
Rahul Chhabra and Kazuo Tsushima
In-medium $J/\psi$ mass shift by the $D$ meson loop effect
5th International Conference on Particle Physics and Astrophysics
null
10.1088/1742-6596/1690/1/012108
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
By an effective Lagrangian plus QCD sum-rule approach, we investigate the mass shift of the $J/\psi$ state in medium, in symmetric nuclear matter with zero and finite temperature, and cold strange matter. The in-medium mass of the $J/\psi$ state is evaluated through the intermediate pseudoscalar $D$-meson loop for th...
[ { "created": "Sun, 25 Oct 2020 16:33:11 GMT", "version": "v1" } ]
2021-02-03
[ [ "Chhabra", "Rahul", "" ], [ "Tsushima", "Kazuo", "" ] ]
By an effective Lagrangian plus QCD sum-rule approach, we investigate the mass shift of the $J/\psi$ state in medium, in symmetric nuclear matter with zero and finite temperature, and cold strange matter. The in-medium mass of the $J/\psi$ state is evaluated through the intermediate pseudoscalar $D$-meson loop for the ...
1310.2230
Feng Yuan
Jian-Wei Qiu, Peng Sun, Bo-Wen Xiao, Feng Yuan
Universal Suppression of Heavy Quarkonium Production in pA Collisions at Low Transverse Momentum
14 pages, 2 figures
Phys. Rev. D 89, 034007 (2014)
10.1103/PhysRevD.89.034007
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The nuclear suppression of heavy quarkonium production at low transverse momentum in pA collisions in high energy scatterings is investigated in the small-x factorization formalism. A universal suppression is found in the large Nc limit between the two formalisms to describe the heavy quarkonium production: the non-r...
[ { "created": "Tue, 8 Oct 2013 19:21:07 GMT", "version": "v1" } ]
2014-02-12
[ [ "Qiu", "Jian-Wei", "" ], [ "Sun", "Peng", "" ], [ "Xiao", "Bo-Wen", "" ], [ "Yuan", "Feng", "" ] ]
The nuclear suppression of heavy quarkonium production at low transverse momentum in pA collisions in high energy scatterings is investigated in the small-x factorization formalism. A universal suppression is found in the large Nc limit between the two formalisms to describe the heavy quarkonium production: the non-rel...
1309.5760
Sandhya Choubey
Sandhya Choubey, Anushree Ghosh
Determining the Octant of $\theta_{23}$ with PINGU, T2K, NOvA and Reactor Data
20 pages
null
10.1007/JHEP11(2013)166
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore the prospects of determining the octant of $\theta_{23}$ with atmospheric neutrinos at PINGU. We study in detail the impact of energy and angle resolutions of the neutrino on the octant sensitivity. We show that the systematic uncertainties on the atmospheric neutrino flux predictions, especially the ones ...
[ { "created": "Mon, 23 Sep 2013 10:48:42 GMT", "version": "v1" } ]
2015-06-17
[ [ "Choubey", "Sandhya", "" ], [ "Ghosh", "Anushree", "" ] ]
We explore the prospects of determining the octant of $\theta_{23}$ with atmospheric neutrinos at PINGU. We study in detail the impact of energy and angle resolutions of the neutrino on the octant sensitivity. We show that the systematic uncertainties on the atmospheric neutrino flux predictions, especially the ones wh...
hep-ph/9508370
L. T. Handoko
L.T. Handoko and T. Morozumi
Effect of the Flavor Changing Neutral Current on Rare $B$ decays
7 pages, Proceeding of 1994 International Workshop on B Physics in Nagoya (World Scientific, 1995) 314, LaTeX, no figures
Proceeding of International Workshop on B Physics (World Scientific, 1995) 314, edited by A. I. Sanda and S. Suzuki
null
HUPD-9502
hep-ph
null
We study the effect of the FCNC on rare $B$ decays in the beyond standard model with vector like singlet quarks. It has been shown that $b \rightarrow s \gamma $ does not receive sizable contribution compared with that of the standard model while $b \rightarrow d \gamma $, $b \rightarrow s(d) l^+ l^-$, can be changed...
[ { "created": "Fri, 25 Aug 1995 14:20:14 GMT", "version": "v1" } ]
2007-05-23
[ [ "Handoko", "L. T.", "" ], [ "Morozumi", "T.", "" ] ]
We study the effect of the FCNC on rare $B$ decays in the beyond standard model with vector like singlet quarks. It has been shown that $b \rightarrow s \gamma $ does not receive sizable contribution compared with that of the standard model while $b \rightarrow d \gamma $, $b \rightarrow s(d) l^+ l^-$, can be changed f...
hep-ph/0502099
M. N. Rebelo
M. N. Rebelo
Leptonic CP Violation and Baryon Asymmetry
Invited talk at The Fifth International Heidelberg Conference on Dark Matter In Astro And Particle Physics (DARK2004) at Texas A&M University, College Station, TX, USA October 3 - 9, 2004. References added
null
null
null
hep-ph
null
The observation of neutrino masses leads to the possibility of leptonic mixing and CP violation. One of the simplest extensions of the Standard Model giving rise to neutrino masses consists of the introduction of one righthanded neutrino field per generation, singlet of SU(2). In the context of the seesaw mechanism t...
[ { "created": "Thu, 10 Feb 2005 15:07:41 GMT", "version": "v1" }, { "created": "Tue, 22 Feb 2005 18:40:27 GMT", "version": "v2" } ]
2007-05-23
[ [ "Rebelo", "M. N.", "" ] ]
The observation of neutrino masses leads to the possibility of leptonic mixing and CP violation. One of the simplest extensions of the Standard Model giving rise to neutrino masses consists of the introduction of one righthanded neutrino field per generation, singlet of SU(2). In the context of the seesaw mechanism thi...
1802.05587
Manjit Kaur Dr.
S. Sharma and M. Kaur
Multiplicity spectra in pp collisions at LHC energies in terms of Gamma and Tsallis distributions
8 pages, 5 figures, 6 tables
Phys. Rev. D 98, 034008 (2018)
10.1103/PhysRevD.98.034008
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In recent years the Tsallis statistics is gaining popularity in describing charged particle produc- tion and their properties, in particular pT spectra and the multiplicities in high energy particle collisions. Motivated by its success, an analysis of the LHC data of proton-proton collisions at ener- gies ranging fro...
[ { "created": "Thu, 15 Feb 2018 14:58:28 GMT", "version": "v1" } ]
2018-08-15
[ [ "Sharma", "S.", "" ], [ "Kaur", "M.", "" ] ]
In recent years the Tsallis statistics is gaining popularity in describing charged particle produc- tion and their properties, in particular pT spectra and the multiplicities in high energy particle collisions. Motivated by its success, an analysis of the LHC data of proton-proton collisions at ener- gies ranging from ...
1401.2564
Michael Grefe
Michael Grefe (Madrid, Autonoma U. and Madrid, IFT) and Timur Delahaye (Stockholm U., OKC and Stockholm U.)
Antiproton Limits on Decaying Gravitino Dark Matter
6 pages, 9 pdf figures; to appear in the proceedings of the 13th International Conference on Topics in Astroparticle and Underground Physics (TAUP 2013), Asilomar Conference Grounds, Pacific Grove, California, USA, 8-13 September 2013
Physics Procedia 61 (2015) 85-90
10.1016/j.phpro.2014.12.015
FTUAM-14-40, IFT-UAM/CSIC-14-002
hep-ph astro-ph.CO astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We report on constraints on the lifetime of decaying gravitino dark matter in models with bilinear R-parity violation derived from observations of cosmic-ray antiprotons with the PAMELA experiment. Performing a scan over a viable set of cosmic-ray propagation parameters we find lower limits ranging from $8\times 10^{...
[ { "created": "Sat, 11 Jan 2014 20:22:51 GMT", "version": "v1" } ]
2015-03-30
[ [ "Grefe", "Michael", "", "Madrid, Autonoma U. and Madrid, IFT" ], [ "Delahaye", "Timur", "", "Stockholm U., OKC and Stockholm U." ] ]
We report on constraints on the lifetime of decaying gravitino dark matter in models with bilinear R-parity violation derived from observations of cosmic-ray antiprotons with the PAMELA experiment. Performing a scan over a viable set of cosmic-ray propagation parameters we find lower limits ranging from $8\times 10^{28...
hep-ph/0607084
Alan Kostelecky
Alan Kostelecky and Matthew Mewes
Sensitive polarimetric search for relativity violations in gamma-ray bursts
10 pages
Phys.Rev.Lett.97:140401,2006
10.1103/PhysRevLett.97.140401
IUHET 492, June 2006
hep-ph astro-ph gr-qc
null
We show that the recent measurements of linear polarization in gamma rays from GRB 930131 and GRB 960924 constrain certain types of relativity violations in photons to less than parts in 10^{37}, representing an improvement in sensitivity by a factor of 100,000.
[ { "created": "Fri, 7 Jul 2006 19:20:00 GMT", "version": "v1" } ]
2008-11-26
[ [ "Kostelecky", "Alan", "" ], [ "Mewes", "Matthew", "" ] ]
We show that the recent measurements of linear polarization in gamma rays from GRB 930131 and GRB 960924 constrain certain types of relativity violations in photons to less than parts in 10^{37}, representing an improvement in sensitivity by a factor of 100,000.
1210.3763
Mamoru Matsunaga
Chuichiro Hattori, Mamoru Matsunaga and Takeo Matsuoka
Maki-Nakagawa-Sakata matrix and Froggatt-Nielsen mechanism
20 pages, The title has been changed. Several paragraphs have been added. In particular, three novel relations among fermion masses and the CKM mixing matrix have been proposed in Sec.VII. (to be published Phys. Rev. D)
null
10.1103/PhysRevD.87.113008
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Flavor mixings together with fermion mass spectra are studied in detail in the $SU(6) \times SU(2)_R$ model, in which state-mixings beyond the minimal supersymmetric standard model (MSSM) take place. Characteristic patterns of fermion spectra are attributed to the hierarchical structure of effective Yukawa interactio...
[ { "created": "Sun, 14 Oct 2012 06:11:32 GMT", "version": "v1" }, { "created": "Tue, 18 Jun 2013 07:57:20 GMT", "version": "v2" } ]
2013-06-26
[ [ "Hattori", "Chuichiro", "" ], [ "Matsunaga", "Mamoru", "" ], [ "Matsuoka", "Takeo", "" ] ]
Flavor mixings together with fermion mass spectra are studied in detail in the $SU(6) \times SU(2)_R$ model, in which state-mixings beyond the minimal supersymmetric standard model (MSSM) take place. Characteristic patterns of fermion spectra are attributed to the hierarchical structure of effective Yukawa interactions...
2201.00884
Craig Roberts
Z.-F. Cui, M. Ding, J. M. Morgado, K. Raya, D. Binosi, L. Chang, F. De Soto, C. D. Roberts, J. Rodr\'iguez-Quintero and S. M. Schmidt
Emergence of pion parton distributions
8 pages, 5 figures, 1 table
null
10.1103/PhysRevD.105.L091502
NJU-INP 054/22
hep-ph hep-ex hep-lat nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Supposing only that there is an effective charge which defines an evolution scheme for parton distribution functions (DFs) that is all-orders exact, strict lower and upper bounds on all Mellin moments of the valence-quark DFs of pion-like systems are derived. Exploiting contemporary results from numerical simulations...
[ { "created": "Mon, 3 Jan 2022 21:35:41 GMT", "version": "v1" }, { "created": "Fri, 22 Apr 2022 03:28:08 GMT", "version": "v2" } ]
2022-06-01
[ [ "Cui", "Z. -F.", "" ], [ "Ding", "M.", "" ], [ "Morgado", "J. M.", "" ], [ "Raya", "K.", "" ], [ "Binosi", "D.", "" ], [ "Chang", "L.", "" ], [ "De Soto", "F.", "" ], [ "Roberts", "C. D.", "...
Supposing only that there is an effective charge which defines an evolution scheme for parton distribution functions (DFs) that is all-orders exact, strict lower and upper bounds on all Mellin moments of the valence-quark DFs of pion-like systems are derived. Exploiting contemporary results from numerical simulations o...
hep-ph/0012073
Kenneth Lane
Gustavo Burdman, Kenneth Lane, and Tonguc Rador
Anti-B-B Mixing Constrains Topcolor-Assisted Technicolor
9 pages, LaTeX, with one postscript figure. Version to appear in Physics Letters B. Minor typos corrected and note added on top-pion contribution to Z to b b-bar decay
Phys.Lett. B514 (2001) 41-46
10.1016/S0370-2693(01)00587-1
Boston University Preprint BUHEP-00-25
hep-ph hep-ex
null
We argue that extended technicolor augmented with topcolor requires that all mixing between the third and the first two quark generations resides in the mixing matrix of left-handed down quarks. Then, the anti-B_d--B_d mixing that occurs in topcolor models constrains the coloron and Z' boson masses to be greater than...
[ { "created": "Wed, 6 Dec 2000 19:51:49 GMT", "version": "v1" }, { "created": "Wed, 13 Dec 2000 21:11:30 GMT", "version": "v2" }, { "created": "Tue, 26 Jun 2001 18:13:43 GMT", "version": "v3" } ]
2009-10-31
[ [ "Burdman", "Gustavo", "" ], [ "Lane", "Kenneth", "" ], [ "Rador", "Tonguc", "" ] ]
We argue that extended technicolor augmented with topcolor requires that all mixing between the third and the first two quark generations resides in the mixing matrix of left-handed down quarks. Then, the anti-B_d--B_d mixing that occurs in topcolor models constrains the coloron and Z' boson masses to be greater than a...
1210.7114
Giuliano Panico
Giuliano Panico, Michele Redi, Andrea Tesi, Andrea Wulzer
On the Tuning and the Mass of the Composite Higgs
32 pages, 14 figures; v2: version published in JHEP
null
10.1007/JHEP03(2013)051
CERN-PH-TH/2012-287
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze quantitatively the tuning of composite Higgs models with partial compositeness and its interplay with the predicted Higgs mass. In this respect we identify three classes of models, characterized by different quantum numbers of the fermionic colored resonances associated with the top quark, the so-called to...
[ { "created": "Fri, 26 Oct 2012 12:20:47 GMT", "version": "v1" }, { "created": "Fri, 5 Apr 2013 09:45:24 GMT", "version": "v2" } ]
2015-06-11
[ [ "Panico", "Giuliano", "" ], [ "Redi", "Michele", "" ], [ "Tesi", "Andrea", "" ], [ "Wulzer", "Andrea", "" ] ]
We analyze quantitatively the tuning of composite Higgs models with partial compositeness and its interplay with the predicted Higgs mass. In this respect we identify three classes of models, characterized by different quantum numbers of the fermionic colored resonances associated with the top quark, the so-called top ...
hep-ph/9411365
Sean Fleming Northwestern Univ.
Eric Braaten and Sean Fleming
Color-Octet Fragmentation and the psi' Surplus at the Tevatron
9 pages, LaTex
Phys. Rev. Lett. 74, 3327 (1995)
10.1103/PhysRevLett.74.3327
NUHEP-TH-94-26
hep-ph
null
The production rate of prompt $\psi'$'s at large transverse momentum at the Tevatron is larger than theoretical expectations by about a factor of 30. As a solution to this puzzle, we suggest that the dominant $\psi'$ production mechanism is the fragmentation of a gluon into a $c \bar c$ pair in a pointlike color-octe...
[ { "created": "Wed, 23 Nov 1994 00:20:59 GMT", "version": "v1" } ]
2016-08-24
[ [ "Braaten", "Eric", "" ], [ "Fleming", "Sean", "" ] ]
The production rate of prompt $\psi'$'s at large transverse momentum at the Tevatron is larger than theoretical expectations by about a factor of 30. As a solution to this puzzle, we suggest that the dominant $\psi'$ production mechanism is the fragmentation of a gluon into a $c \bar c$ pair in a pointlike color-octet ...
1905.05215
Maria Ubiali Dr
Stefano Carrazza, Celine Degrande, Shayan Iranipour, Juan Rojo and Maria Ubiali
Can New Physics hide inside the proton?
null
Phys. Rev. Lett. 123, 132001 (2019)
10.1103/PhysRevLett.123.132001
Nikhef 2019-009, DAMTP-2019-19, CP3-19-25, TIF-UNIMI-2019-5
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Modern global analyses of the structure of the proton include collider measurements which probe energies well above the electroweak scale. While these provide powerful constraints on the parton distribution functions (PDFs), they are also sensitive to beyond the Standard Model (BSM) dynamics if these affect the fitte...
[ { "created": "Mon, 13 May 2019 18:04:21 GMT", "version": "v1" } ]
2019-10-02
[ [ "Carrazza", "Stefano", "" ], [ "Degrande", "Celine", "" ], [ "Iranipour", "Shayan", "" ], [ "Rojo", "Juan", "" ], [ "Ubiali", "Maria", "" ] ]
Modern global analyses of the structure of the proton include collider measurements which probe energies well above the electroweak scale. While these provide powerful constraints on the parton distribution functions (PDFs), they are also sensitive to beyond the Standard Model (BSM) dynamics if these affect the fitted ...
1411.1407
Andrew Kobach
Jennifer Kile, Andrew Kobach, Amarjit Soni
Lepton-Flavored Dark Matter
includes additional discussions, results unchanged
Phys. Lett. B 744 330 (2015)
10.1016/j.physletb.2015.04.005
NUHEP-14/03
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, we address two paradoxes. The first is that the measured dark-matter relic density can be satisfied with new physics at O(100 GeV - 1 TeV), while the null results from direct-detection experiments place lower bounds of O(10 TeV) on a new-physics scale. The second puzzle is that the severe suppression of...
[ { "created": "Wed, 5 Nov 2014 21:00:05 GMT", "version": "v1" }, { "created": "Wed, 3 Dec 2014 21:00:12 GMT", "version": "v2" }, { "created": "Tue, 21 Apr 2015 02:32:11 GMT", "version": "v3" } ]
2015-04-22
[ [ "Kile", "Jennifer", "" ], [ "Kobach", "Andrew", "" ], [ "Soni", "Amarjit", "" ] ]
In this work, we address two paradoxes. The first is that the measured dark-matter relic density can be satisfied with new physics at O(100 GeV - 1 TeV), while the null results from direct-detection experiments place lower bounds of O(10 TeV) on a new-physics scale. The second puzzle is that the severe suppression of l...
1302.5725
Danny Marfatia
Y. Gao, D. Marfatia
Meter-baseline tests of sterile neutrinos at Daya Bay
4 pages, 5 figures, 1 table. Version to appear in PLB
Phys.Lett.B723:164-167,2013
10.1016/j.physletb.2013.05.018
null
hep-ph astro-ph.CO hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore the sensitivity of an experiment at the Daya Bay site, with a point radioactive source and a few meter baseline, to neutrino oscillations involving one or more eV mass sterile neutrinos. We find that within a year, the entire 3+2 and 1+3+1 parameter space preferred by global fits can be excluded at the 3\s...
[ { "created": "Fri, 22 Feb 2013 22:14:30 GMT", "version": "v1" }, { "created": "Tue, 7 May 2013 20:13:16 GMT", "version": "v2" } ]
2013-05-21
[ [ "Gao", "Y.", "" ], [ "Marfatia", "D.", "" ] ]
We explore the sensitivity of an experiment at the Daya Bay site, with a point radioactive source and a few meter baseline, to neutrino oscillations involving one or more eV mass sterile neutrinos. We find that within a year, the entire 3+2 and 1+3+1 parameter space preferred by global fits can be excluded at the 3\sig...
hep-ph/0508304
A. Cooper-Sarkar
A. Cooper-Sarkar, C. Gwenlan
Comparison and combination of ZEUS and H1 PDF analyses
To appear in Proceedings of the HERA-LHC workshop 2005
null
null
null
hep-ph hep-ex
null
The H1 and ZEUS published PDF analyses are compared, including a discussion of the different treatments of correlated systematic uncertainties. Differences in the data sets and the analyses are investigated by putting the H1 data set through both PDF analyses and by putting the ZEUS and H1 data sets through the same ...
[ { "created": "Tue, 30 Aug 2005 09:38:58 GMT", "version": "v1" } ]
2016-09-06
[ [ "Cooper-Sarkar", "A.", "" ], [ "Gwenlan", "C.", "" ] ]
The H1 and ZEUS published PDF analyses are compared, including a discussion of the different treatments of correlated systematic uncertainties. Differences in the data sets and the analyses are investigated by putting the H1 data set through both PDF analyses and by putting the ZEUS and H1 data sets through the same (Z...
1102.3367
Luca Bonanno
Luca Bonanno and Francesco Giacosa
Does nuclear matter bind at large $N_c$?
18 pages, 5 figures
Nucl.Phys.A859:49-62,2011
10.1016/j.nuclphysa.2011.04.012
null
hep-ph hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The existence of nuclear matter at large $N_{c}$ is investigated in the framework of effective hadronic models of the Walecka type. This issue is strongly related to the nucleon-nucleon attraction in the scalar channel, and thus to the nature of the light scalar mesons. Different scenarios for the light scalar sector...
[ { "created": "Wed, 16 Feb 2011 16:27:03 GMT", "version": "v1" }, { "created": "Tue, 6 Sep 2011 17:40:45 GMT", "version": "v2" } ]
2011-09-07
[ [ "Bonanno", "Luca", "" ], [ "Giacosa", "Francesco", "" ] ]
The existence of nuclear matter at large $N_{c}$ is investigated in the framework of effective hadronic models of the Walecka type. This issue is strongly related to the nucleon-nucleon attraction in the scalar channel, and thus to the nature of the light scalar mesons. Different scenarios for the light scalar sector c...
hep-ph/0101112
Raphael Bonnaz
R. Bonnaz, B. Silvestre-Brac, C. Gignoux
Radiative transitions in mesons in a non relativistic quark model
42 pages, 2 figures
Eur.Phys.J. A13 (2002) 363-376
null
ISN-01-001
hep-ph
null
In the framework of the non relativistic quark model, an exhaustive study of radiative transitions in mesons is performed. The emphasis is put on several points. Some traditional approximations (long wave length limit, non relativistic phase space, dipole approximation for E1 transitions, gaussian wave functions) are...
[ { "created": "Thu, 11 Jan 2001 09:43:07 GMT", "version": "v1" } ]
2016-09-06
[ [ "Bonnaz", "R.", "" ], [ "Silvestre-Brac", "B.", "" ], [ "Gignoux", "C.", "" ] ]
In the framework of the non relativistic quark model, an exhaustive study of radiative transitions in mesons is performed. The emphasis is put on several points. Some traditional approximations (long wave length limit, non relativistic phase space, dipole approximation for E1 transitions, gaussian wave functions) are a...
hep-ph/9609350
Jamal Jalilian-Marian
Jamal Jalilian-Marian
Saturation of Gluon Density at Small x
5 pages, Latex, 3 figures, uses sprocl.sty, to appear in the proceedings of DPF meeting, Minneapolis 1996
null
null
HEP-MINN-96-1512, NUC-MINN-96/18-T, TPI-MINN-96/17
hep-ph
null
Gluon distribution function at small x is computed using the extended McLerran-Venugopalan model. A lipatov like enhancement is seen as well as a non-trivial transverse momentum dependence which is estimated. It is shown that gluon density saturates at small x which would lead to unitarization of cross sections compu...
[ { "created": "Fri, 13 Sep 1996 17:39:42 GMT", "version": "v1" } ]
2007-05-23
[ [ "Jalilian-Marian", "Jamal", "" ] ]
Gluon distribution function at small x is computed using the extended McLerran-Venugopalan model. A lipatov like enhancement is seen as well as a non-trivial transverse momentum dependence which is estimated. It is shown that gluon density saturates at small x which would lead to unitarization of cross sections compute...
1601.00862
Zhi-Hui Guo
Zhi-Hui Guo and J.A. Oller
Resonance on top of thresholds: the $\Lambda_c(2595)^+$ as an extremely fine-tuned state
22 pages, 6 figures. To match the published version in Phys.Rev.D
Phys. Rev. D 93 (2016) 054014
10.1103/PhysRevD.93.054014
null
hep-ph hep-ex hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A dedicated study of the $\pi\Sigma_c$ scattering around its threshold is carried out in this work to probe the nature of $\Lambda_c(2595)^+$. We first demonstrate that the effective range expansion approach fails to work near the $\Lambda_c(2595)^+$ pole position, due to the presence of a nearby CDD pole around the ...
[ { "created": "Tue, 5 Jan 2016 15:29:32 GMT", "version": "v1" }, { "created": "Fri, 11 Mar 2016 07:44:41 GMT", "version": "v2" } ]
2016-03-23
[ [ "Guo", "Zhi-Hui", "" ], [ "Oller", "J. A.", "" ] ]
A dedicated study of the $\pi\Sigma_c$ scattering around its threshold is carried out in this work to probe the nature of $\Lambda_c(2595)^+$. We first demonstrate that the effective range expansion approach fails to work near the $\Lambda_c(2595)^+$ pole position, due to the presence of a nearby CDD pole around the $\...
hep-ph/9801203
T. Pradhan
T. Pradhan
A Model of Composite Electrons and Photons
10 Pages, 3 figures
null
null
IP-BBSR/97-46
hep-ph
null
It is shown that electrons and photons can be considered as composities of particles representating the fundamental representation of the extended Lorentz group $SU(3)\otimes SU(3)$ in (8+1) dimensional space-time which are held together by force mediated by gauge particles belonging to the regular representation. In...
[ { "created": "Thu, 1 Jan 1998 07:03:20 GMT", "version": "v1" }, { "created": "Mon, 5 Jan 1998 06:30:19 GMT", "version": "v2" } ]
2007-05-23
[ [ "Pradhan", "T.", "" ] ]
It is shown that electrons and photons can be considered as composities of particles representating the fundamental representation of the extended Lorentz group $SU(3)\otimes SU(3)$ in (8+1) dimensional space-time which are held together by force mediated by gauge particles belonging to the regular representation. In t...
1310.5458
Thorsten Renk
Thorsten Renk
Charm energy loss and D-D correlations from a shower picture
9 pages, 6 figures, submitted to PRC
Phys. Rev. C 89, 054906 (2014)
10.1103/PhysRevC.89.054906
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Measurements of mesons containing charm or bottom quarks at high transverse momentum (P_T) constitute an interesting set of probes for the nature of the interaction of hard partons with a QCD medium as created in ultrarelativistic heavy-ion (A-A) collisions. Not only can D and B mesons to a reasonable accuracy be ass...
[ { "created": "Mon, 21 Oct 2013 08:30:51 GMT", "version": "v1" } ]
2014-05-21
[ [ "Renk", "Thorsten", "" ] ]
Measurements of mesons containing charm or bottom quarks at high transverse momentum (P_T) constitute an interesting set of probes for the nature of the interaction of hard partons with a QCD medium as created in ultrarelativistic heavy-ion (A-A) collisions. Not only can D and B mesons to a reasonable accuracy be assum...
hep-ph/9708314
George W. S. Hou
Wei-Shu Hou and Cheng-Ying Ko
Massiveness of Glueballs as Origin of the OZI Rule
13 pages, latex, two eps figures (included)
null
null
NTUTH-97-11
hep-ph
null
The heaviness of the glueball mass scale is suggested as the source of the OZI rule at low energy. The $J/\psi \to \rho\pi$ decay "anomaly" implies the vector glueball $O$ has mass $m_O \approx m_{J/\psi}$. Such a heavy mass is supported by other glueball studies. Glueball-meson matrix elements turn out to be not sup...
[ { "created": "Tue, 12 Aug 1997 03:23:46 GMT", "version": "v1" } ]
2007-05-23
[ [ "Hou", "Wei-Shu", "" ], [ "Ko", "Cheng-Ying", "" ] ]
The heaviness of the glueball mass scale is suggested as the source of the OZI rule at low energy. The $J/\psi \to \rho\pi$ decay "anomaly" implies the vector glueball $O$ has mass $m_O \approx m_{J/\psi}$. Such a heavy mass is supported by other glueball studies. Glueball-meson matrix elements turn out to be not suppr...
hep-ph/9305336
null
J. Pappademos, U. Sukhatme, and A. Pagnamenta
Bound States in the Continuum from Supersymmetric Quantum Mechanics
15 pages, in latex, 10 figures will be sent by mail, upon request
Phys.Rev.A48:3525-3531,1993
10.1103/PhysRevA.48.3525
UICHEP-TH/92-9
hep-ph
null
Starting from a potential with a continuum of energy eigenstates, we show how the methods of supersymmetric quantum mechanics can be used to generate families of potentials with bound states in the continuum [BICs]. We also find the corresponding wave functions. Our method preserves the spectrum of the original poten...
[ { "created": "Thu, 27 May 1993 16:41:33 GMT", "version": "v1" } ]
2008-11-26
[ [ "Pappademos", "J.", "" ], [ "Sukhatme", "U.", "" ], [ "Pagnamenta", "A.", "" ] ]
Starting from a potential with a continuum of energy eigenstates, we show how the methods of supersymmetric quantum mechanics can be used to generate families of potentials with bound states in the continuum [BICs]. We also find the corresponding wave functions. Our method preserves the spectrum of the original potenti...
1711.02667
Alexander Ridgway K
Haipeng An, Michael McAneny, Alexander K. Ridgway and Mark B. Wise
Non-Gaussian Enhancements of Galactic Halo Correlations in Quasi-Single Field Inflation
32 pages, 14 figures
Phys. Rev. D 97, 123528 (2018)
10.1103/PhysRevD.97.123528
null
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider a quasi-single field inflation model in which the inflaton interacts with a massive scalar field called the isocurvaton. Due to the breaking of time translational invariance by the inflaton background, these interactions induce kinetic mixing between the inflaton and isocurvaton, which is parameterized by...
[ { "created": "Tue, 7 Nov 2017 19:00:00 GMT", "version": "v1" } ]
2018-06-27
[ [ "An", "Haipeng", "" ], [ "McAneny", "Michael", "" ], [ "Ridgway", "Alexander K.", "" ], [ "Wise", "Mark B.", "" ] ]
We consider a quasi-single field inflation model in which the inflaton interacts with a massive scalar field called the isocurvaton. Due to the breaking of time translational invariance by the inflaton background, these interactions induce kinetic mixing between the inflaton and isocurvaton, which is parameterized by a...
2105.08670
Di Zhang
Di Zhang
Radiative neutrino masses, lepton flavor mixing and muon $g-2$ in a leptoquark model
28 pages, 4 figures, references added, and the version accepted for publication in JHEP
null
10.1007/JHEP07(2021)069
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a leptoquark model with two scalar leptoquarks $S^{}_1 \left( \bar{3},1,\frac{1}{3} \right)$ and $\widetilde{R}^{}_2 \left(3,2,\frac{1}{6} \right)$ to give a combined explanation of neutrino masses, lepton flavor mixing and the anomaly of muon $g-2$, satisfying the constraints from the radiative decays of ...
[ { "created": "Tue, 18 May 2021 16:55:15 GMT", "version": "v1" }, { "created": "Wed, 23 Jun 2021 03:16:54 GMT", "version": "v2" } ]
2021-07-28
[ [ "Zhang", "Di", "" ] ]
We propose a leptoquark model with two scalar leptoquarks $S^{}_1 \left( \bar{3},1,\frac{1}{3} \right)$ and $\widetilde{R}^{}_2 \left(3,2,\frac{1}{6} \right)$ to give a combined explanation of neutrino masses, lepton flavor mixing and the anomaly of muon $g-2$, satisfying the constraints from the radiative decays of ch...
hep-ph/0103048
Kiwoon Choi
Kiwoon Choi, Kyuwan Hwang, Sin Kyu Kang, Kang Young Lee, and Wan Young Song
Probing the messenger of supersymmetry breaking by the muon anomalous magnetic moment
RevTeX, 29 pages, 14 eps figures, figure for deflected anomaly mediation is corrected, reference added
Phys.Rev. D64 (2001) 055001
10.1103/PhysRevD.64.055001
KAIST-TH 01/03, KIAS-P01012
hep-ph
null
Motivated by the recently measured muon's anomalous magnetic moment $a_{\mu}$, we examine the supersymmetry contribution to $a_{\mu}$ in various mediation models of supersymmetry breaking which lead to predictive flavor conserving soft parameters at high energy scale. The studied models include dilaton/modulus-mediat...
[ { "created": "Mon, 5 Mar 2001 12:46:07 GMT", "version": "v1" }, { "created": "Thu, 8 Mar 2001 23:36:00 GMT", "version": "v2" }, { "created": "Mon, 19 Mar 2001 06:58:33 GMT", "version": "v3" } ]
2009-11-07
[ [ "Choi", "Kiwoon", "" ], [ "Hwang", "Kyuwan", "" ], [ "Kang", "Sin Kyu", "" ], [ "Lee", "Kang Young", "" ], [ "Song", "Wan Young", "" ] ]
Motivated by the recently measured muon's anomalous magnetic moment $a_{\mu}$, we examine the supersymmetry contribution to $a_{\mu}$ in various mediation models of supersymmetry breaking which lead to predictive flavor conserving soft parameters at high energy scale. The studied models include dilaton/modulus-mediated...
1008.3543
Zhong-Bo Kang
Daniel Boer, Zhong-Bo Kang, Werner Vogelsang, Feng Yuan
Test of the Universality of Naive-time-reversal-odd Fragmentation Functions
4 pages, 3 figures
Phys.Rev.Lett.105:202001,2010
10.1103/PhysRevLett.105.202001
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the ''spontaneous'' hyperon transverse polarization in $e^+e^-$ annihilation and semi-inclusive deep inelastic scattering processes as a test of the universality of the naive-time-reversal-odd transverse momentum dependent fragmentation functions. We find that universality implies definite sign relatio...
[ { "created": "Fri, 20 Aug 2010 17:37:39 GMT", "version": "v1" } ]
2010-12-02
[ [ "Boer", "Daniel", "" ], [ "Kang", "Zhong-Bo", "" ], [ "Vogelsang", "Werner", "" ], [ "Yuan", "Feng", "" ] ]
We investigate the ''spontaneous'' hyperon transverse polarization in $e^+e^-$ annihilation and semi-inclusive deep inelastic scattering processes as a test of the universality of the naive-time-reversal-odd transverse momentum dependent fragmentation functions. We find that universality implies definite sign relations...
1411.7006
Steven D. Bass
Steven D. Bass
QCD symmetries and the eta and etaprime in nuclei
8 pages, invited talk at the International Conference on Exotic Atoms and Related Topics - EXA2014, Vienna, Austria, September 15-19 2014, to appear in Hyperfine Interactions. arXiv admin note: substantial text overlap with arXiv:1311.7248
null
10.1007/s10751-015-1139-7
null
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the role of QCD symmetries in understanding the eta and etaprime mesons in nuclear media. Recent results on the etaprime mass in nuclei from the CBELSA/TAPS collaboration are very similar to the prediction of the Quark Meson Coupling model.
[ { "created": "Tue, 25 Nov 2014 20:22:11 GMT", "version": "v1" }, { "created": "Wed, 11 Feb 2015 10:59:04 GMT", "version": "v2" } ]
2015-06-23
[ [ "Bass", "Steven D.", "" ] ]
We discuss the role of QCD symmetries in understanding the eta and etaprime mesons in nuclear media. Recent results on the etaprime mass in nuclei from the CBELSA/TAPS collaboration are very similar to the prediction of the Quark Meson Coupling model.
2003.13556
Masayuki Wakayama
Masayuki Wakayama, Seung-il Nam and Atsushi Hosaka
The use of the canonical approach in effective models of QCD
9 pages, 10 figures and 2 tables
Phys. Rev. D 102, 034035 (2020)
10.1103/PhysRevD.102.034035
PKNU-NuHaTh-2020-02
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We clarify regions where the canonical approach works well at the finite temperature and density in the Nambu-Jona-Lasinio (NJL) and Polyakov-NJL (PNJL) models. The canonical approach is a useful method for avoiding the sign problem in lattice QCD simulations at finite density, but it involves some parameters. We fin...
[ { "created": "Mon, 30 Mar 2020 15:29:40 GMT", "version": "v1" } ]
2020-09-02
[ [ "Wakayama", "Masayuki", "" ], [ "Nam", "Seung-il", "" ], [ "Hosaka", "Atsushi", "" ] ]
We clarify regions where the canonical approach works well at the finite temperature and density in the Nambu-Jona-Lasinio (NJL) and Polyakov-NJL (PNJL) models. The canonical approach is a useful method for avoiding the sign problem in lattice QCD simulations at finite density, but it involves some parameters. We find ...
hep-ph/9504317
Tatsu Takeuchi
Tatsu Takeuchi, Aaron K. Grant, and Mihir P. Worah
The difficulties involved in calculating $\delta\rho$
4 pages, LATEX, style file appended. Talk presented at "Beyond the Standard Model IV", Lake Tahoe, CA, Dec. 13-18, 1994
null
null
FERMILAB-CONF-95/084-T, EFI 95-19
hep-ph
null
We discuss the difficulties that arise when one tries to calculate $\delta\rho$ using dispersion relations.
[ { "created": "Mon, 17 Apr 1995 22:10:22 GMT", "version": "v1" } ]
2007-05-23
[ [ "Takeuchi", "Tatsu", "" ], [ "Grant", "Aaron K.", "" ], [ "Worah", "Mihir P.", "" ] ]
We discuss the difficulties that arise when one tries to calculate $\delta\rho$ using dispersion relations.
hep-ph/9707276
Richard D. Ball
Richard D. Ball, Giovanni Ridolfi, Guido Altarelli and Stefano Forte
What Can We Learn From Polarized Structure Function Data?
7 pages, LaTeX, 6 figures in encapsulated postscript; talks given at La Thuile and DIS97
null
null
CERN-TH/97-153, DFTT 41/97, Edinburgh 97/9, UB-ECM-PF 97/11
hep-ph
null
We summarise the perturbative QCD analysis of the structure function data for g_1 from longitudinally polarized deep inelastic scattering from proton, deuteron and neutron targets, with particular emphasis on testing sum rules, determining helicity fractions, and extracting the strong coupling from both scaling viola...
[ { "created": "Tue, 8 Jul 1997 13:03:22 GMT", "version": "v1" } ]
2007-05-23
[ [ "Ball", "Richard D.", "" ], [ "Ridolfi", "Giovanni", "" ], [ "Altarelli", "Guido", "" ], [ "Forte", "Stefano", "" ] ]
We summarise the perturbative QCD analysis of the structure function data for g_1 from longitudinally polarized deep inelastic scattering from proton, deuteron and neutron targets, with particular emphasis on testing sum rules, determining helicity fractions, and extracting the strong coupling from both scaling violati...
hep-ph/0611264
Andrea Shindler
Andrea Shindler, ETM Collaboration
Lattice QCD with light twisted quarks: first results
4 pages, 2 figures, talk given at ICHEP 2006
null
null
null
hep-ph hep-lat
null
I report on first results of the ETMC obtained simulating lattice QCD with two degenerate flavours of Wilson twisted mass fermions, for which physical observables are automatically O(a) improved. Recent improvements of the HMC algorithm allow simulations of pseudoscalar masses below 300 MeV on volumes L^3 x 2L with L...
[ { "created": "Mon, 20 Nov 2006 17:39:08 GMT", "version": "v1" } ]
2007-05-23
[ [ "Shindler", "Andrea", "" ], [ "Collaboration", "ETM", "" ] ]
I report on first results of the ETMC obtained simulating lattice QCD with two degenerate flavours of Wilson twisted mass fermions, for which physical observables are automatically O(a) improved. Recent improvements of the HMC algorithm allow simulations of pseudoscalar masses below 300 MeV on volumes L^3 x 2L with L>2...
1611.00109
Dian-Yong Chen
Dian-Yong Chen
Where are $\chi_{cJ}(3P)$?
6 pages, 3 figures, 2 table, published by Eur.Phys.J. C
Eur. Phys. J. C76, 671 (2016)
10.1140/epjc/s10052-016-4531-9
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the present work, we propose $Y(4140)$ as the $\chi_{c1}(3P)$ state by studying the $\chi_{c1} \pi^+ \pi^-$ invariant mass spectrum of the $B\to K \chi_{c1} \pi^+ \pi^-$ process. In the $D\bar{D}$ invariant mass spectrum of the $B\to K D\bar{D}$ process, we find a new resonance with the mass and width to be $ (408...
[ { "created": "Tue, 1 Nov 2016 02:39:47 GMT", "version": "v1" }, { "created": "Thu, 8 Dec 2016 18:59:45 GMT", "version": "v2" } ]
2016-12-09
[ [ "Chen", "Dian-Yong", "" ] ]
In the present work, we propose $Y(4140)$ as the $\chi_{c1}(3P)$ state by studying the $\chi_{c1} \pi^+ \pi^-$ invariant mass spectrum of the $B\to K \chi_{c1} \pi^+ \pi^-$ process. In the $D\bar{D}$ invariant mass spectrum of the $B\to K D\bar{D}$ process, we find a new resonance with the mass and width to be $ (4083....
hep-ph/0104170
Haijun Pan
Haijun Pan, G. Cheng
Resonance in the seesaw mechanism
pages, 2 figures
null
null
null
hep-ph
null
We study the RH neutrino properties from the low energy neutrino data in the seesaw mechanism. Reonance behavior is found for the right-handed (RH) mixing angle as a function of light neutrino mass ratios in two favored region of the solar neutrino problem and, at the resonance point, the two corresponding RH Majoran...
[ { "created": "Wed, 18 Apr 2001 01:06:38 GMT", "version": "v1" } ]
2007-05-23
[ [ "Pan", "Haijun", "" ], [ "Cheng", "G.", "" ] ]
We study the RH neutrino properties from the low energy neutrino data in the seesaw mechanism. Reonance behavior is found for the right-handed (RH) mixing angle as a function of light neutrino mass ratios in two favored region of the solar neutrino problem and, at the resonance point, the two corresponding RH Majorana ...
hep-ph/0502022
Anna Rossi
Eung Jin Chun (KIAS, Seoul-Korea), Antonio Masiero, Anna Rossi (Padua U.-Italy) and Sudhir K. Vempati (CPHT, Palaiseau-France)
A Predictive Seesaw Scenario for EDMs
5 pages, uses axodraw.sty. Remarks and few references added. To appear on Phys. Lett. B
Phys.Lett. B622 (2005) 112-117
10.1016/j.physletb.2005.06.083
CPHT-RR-008-0105, DFPD-05/TH/06, KIAS-P05013
hep-ph
null
The generation of electric dipole moments (EDMs) is addressed in the supersymmetric seesaw scenario realized through the exchange of SU(2)_W triplet states. In particular, we show that the triplet soft-breaking bilinear term can induce finite contributions to lepton and quark EDMs. Moreover, the peculiar flavour stru...
[ { "created": "Wed, 2 Feb 2005 15:29:17 GMT", "version": "v1" }, { "created": "Fri, 8 Jul 2005 15:35:28 GMT", "version": "v2" } ]
2009-11-11
[ [ "Chun", "Eung Jin", "", "KIAS, Seoul-Korea" ], [ "Masiero", "Antonio", "", "Padua\n U.-Italy" ], [ "Rossi", "Anna", "", "Padua\n U.-Italy" ], [ "Vempati", "Sudhir K.", "", "CPHT, Palaiseau-France" ] ]
The generation of electric dipole moments (EDMs) is addressed in the supersymmetric seesaw scenario realized through the exchange of SU(2)_W triplet states. In particular, we show that the triplet soft-breaking bilinear term can induce finite contributions to lepton and quark EDMs. Moreover, the peculiar flavour struct...
1305.4431
Daisuke Nomura
Gi-Chol Cho, Daisuke Nomura and Yoshiko Ohno
Constraints on radion in a warped extra dimension model from Higgs boson searches at the LHC
10 pages, 3 figures. v2: References added. Discussions added in Section 5. Results unchanged. v3: typos corrected, accepted for publication in Mod. Phys. Lett. A
null
10.1142/S0217732313501484
OCHA-PP-315, TU-936
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study constraints on the radion mass and couplings in the Randall-Sundrum model from the recent LHC data on the Standard Model (SM) Higgs boson searches. When the radion is heavy enough so that it can decay into a pair of on-shell Z-bosons, we find that the ZZ channel gives a stringent constraint. For example, if ...
[ { "created": "Mon, 20 May 2013 03:56:36 GMT", "version": "v1" }, { "created": "Tue, 27 Aug 2013 02:58:51 GMT", "version": "v2" }, { "created": "Fri, 30 Aug 2013 04:29:26 GMT", "version": "v3" } ]
2013-10-04
[ [ "Cho", "Gi-Chol", "" ], [ "Nomura", "Daisuke", "" ], [ "Ohno", "Yoshiko", "" ] ]
We study constraints on the radion mass and couplings in the Randall-Sundrum model from the recent LHC data on the Standard Model (SM) Higgs boson searches. When the radion is heavy enough so that it can decay into a pair of on-shell Z-bosons, we find that the ZZ channel gives a stringent constraint. For example, if th...
1904.00782
Andrecia Ramnath
Tuomas Lappi and Andrecia Ramnath
Unequal rapidity correlators in the dilute limit of JIMWLK
18 pages, 1 figure
Phys. Rev. D 100, 054003 (2019)
10.1103/PhysRevD.100.054003
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study unequal rapidity correlators in the stochastic Langevin picture of Jalilian-Marian-Iancu-McLerran-Weigert-Leonidov-Kovner (JIMWLK) evolution in the Color Glass Condensate effective field theory. We discuss a diagrammatic interpretation of the long-range correlators. By separately evolving the Wilson lines in...
[ { "created": "Mon, 1 Apr 2019 12:43:26 GMT", "version": "v1" } ]
2019-09-11
[ [ "Lappi", "Tuomas", "" ], [ "Ramnath", "Andrecia", "" ] ]
We study unequal rapidity correlators in the stochastic Langevin picture of Jalilian-Marian-Iancu-McLerran-Weigert-Leonidov-Kovner (JIMWLK) evolution in the Color Glass Condensate effective field theory. We discuss a diagrammatic interpretation of the long-range correlators. By separately evolving the Wilson lines in t...
hep-ph/9807483
Kingman Cheung
Kingman Cheung (UCD)
Constraints on Electron-quark Contact Interactions
9 pages and 2 figures. Plenary talks presented at the IVth International Workshop on Particle Physics Phenomenology, National Sin-yat-sun University, Taiwan R.O.C., June 18--21 1998 and at the D0 Collaboration meeting, Davis, CA, March 1998; and in a parallel session at PASCOS-98, Northeastern University, Boson...
null
null
null
hep-ph hep-ex
null
In this talk, I summarize a global analysis on electron-quark contact interactions using the updated NC DIS data at HERA, Drell-yan production at the Tevatron, total hadronic cross sections at LEP, atomic parity violation measurement, low energy $e$-nucleon scattering data, and the $\nu$-nucleon scattering data. The ...
[ { "created": "Thu, 23 Jul 1998 22:01:44 GMT", "version": "v1" } ]
2007-05-23
[ [ "Cheung", "Kingman", "", "UCD" ] ]
In this talk, I summarize a global analysis on electron-quark contact interactions using the updated NC DIS data at HERA, Drell-yan production at the Tevatron, total hadronic cross sections at LEP, atomic parity violation measurement, low energy $e$-nucleon scattering data, and the $\nu$-nucleon scattering data. The gl...
2301.07698
Aleksey Rusov
James Gratrex, Alexander Lenz, Bla\v{z}enka Meli\'c, Ivan Ni\v{s}and\v{z}i\'c, Maria Laura Piscopo, Aleksey V. Rusov
Quark-hadron duality at work: lifetimes of bottom baryons
36 pages, 3 figures, 8 tables
null
10.1007/JHEP04(2023)034
RBI-ThPhys-2022-48, SI-HEP-2022-38, SFB-257-P3H-22-126
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
In the 1990s, very low experimental values for the lifetime ratio $\tau (\Lambda_b)/\tau(B_d)$ triggered a considerable amount of doubt in the applicability of the heavy quark expansion (HQE), which is based on the assumption of quark-hadron duality (QHD) for inclusive total decay rates. However, these low values tur...
[ { "created": "Wed, 18 Jan 2023 18:42:33 GMT", "version": "v1" } ]
2023-04-26
[ [ "Gratrex", "James", "" ], [ "Lenz", "Alexander", "" ], [ "Melić", "Blaženka", "" ], [ "Nišandžić", "Ivan", "" ], [ "Piscopo", "Maria Laura", "" ], [ "Rusov", "Aleksey V.", "" ] ]
In the 1990s, very low experimental values for the lifetime ratio $\tau (\Lambda_b)/\tau(B_d)$ triggered a considerable amount of doubt in the applicability of the heavy quark expansion (HQE), which is based on the assumption of quark-hadron duality (QHD) for inclusive total decay rates. However, these low values turne...
2303.15781
Bai-Song Xie
Li-Na Hu, Orkash Amat, Li Wang, Adiljan Sawut, Hong-Hao Fan and B. S. Xie
Momentum spirals in multiphoton pair production revisited
31 pages, 12 figures, 2 tables
Physical Review D 107, 116010 (2023)
10.1103/PhysRevD.107.116010
null
hep-ph quant-ph
http://creativecommons.org/licenses/by/4.0/
Spirals in multiphoton pair production are revisited by two counter-rotating fields with time delay for different cycles in pulse. Novel findings include that for subcycle fields, the remarkable spiral structure in the momentum spectrum can be still caused by a large time delay compared to the previous study for supe...
[ { "created": "Tue, 28 Mar 2023 07:51:25 GMT", "version": "v1" }, { "created": "Fri, 16 Jun 2023 08:42:22 GMT", "version": "v2" } ]
2023-06-21
[ [ "Hu", "Li-Na", "" ], [ "Amat", "Orkash", "" ], [ "Wang", "Li", "" ], [ "Sawut", "Adiljan", "" ], [ "Fan", "Hong-Hao", "" ], [ "Xie", "B. S.", "" ] ]
Spirals in multiphoton pair production are revisited by two counter-rotating fields with time delay for different cycles in pulse. Novel findings include that for subcycle fields, the remarkable spiral structure in the momentum spectrum can be still caused by a large time delay compared to the previous study for superc...
hep-ph/0412199
Walter Winter
Patrick Huber, Manfred Lindner, Walter Winter
From parameter space constraints to the precision determination of the leptonic Dirac CP phase
32 pages, 9 figures
JHEP 0505:020,2005
10.1088/1126-6708/2005/05/020
TUM-HEP-571/04, MADPH-04-1411
hep-ph
null
We discuss the precision determination of the leptonic Dirac CP phase $\delta_{CP}$ in neutrino oscillation experiments, where we apply the concept of ``CP coverage''. We demonstrate that this approach carries more information than a conventional CP violation measurement, since it also describes the exclusion of para...
[ { "created": "Tue, 14 Dec 2004 21:07:12 GMT", "version": "v1" } ]
2014-11-18
[ [ "Huber", "Patrick", "" ], [ "Lindner", "Manfred", "" ], [ "Winter", "Walter", "" ] ]
We discuss the precision determination of the leptonic Dirac CP phase $\delta_{CP}$ in neutrino oscillation experiments, where we apply the concept of ``CP coverage''. We demonstrate that this approach carries more information than a conventional CP violation measurement, since it also describes the exclusion of parame...
1911.05463
Martin Rohrmoser
A. van Hameren, K. Kutak, W. P{\l}aczek, M. Rohrmoser, K. Tywoniuk
Jet quenching and effects of non-Gaussian transverse-momentum broadening on di-jet observables
null
Phys. Rev. C 102, 044910 (2020)
10.1103/PhysRevC.102.044910
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study, at a qualitative level, production of jet pairs in ultrarelativistic nuclear collisions within a framework combining High Energy Factorisation (HEF) and in-medium propagation of jet particles that takes into account stochastic transverse forces as well as medium-induced radiation. We find that the resulting...
[ { "created": "Wed, 13 Nov 2019 13:56:31 GMT", "version": "v1" }, { "created": "Wed, 19 Feb 2020 12:58:13 GMT", "version": "v2" }, { "created": "Tue, 15 Sep 2020 13:59:13 GMT", "version": "v3" } ]
2020-10-28
[ [ "van Hameren", "A.", "" ], [ "Kutak", "K.", "" ], [ "Płaczek", "W.", "" ], [ "Rohrmoser", "M.", "" ], [ "Tywoniuk", "K.", "" ] ]
We study, at a qualitative level, production of jet pairs in ultrarelativistic nuclear collisions within a framework combining High Energy Factorisation (HEF) and in-medium propagation of jet particles that takes into account stochastic transverse forces as well as medium-induced radiation. We find that the resulting d...
2106.04238
Chan Beom Park
Kwang Sik Jeong, Junichiro Kawamura, Chan Beom Park
Mixed modulus and anomaly mediation in light of the muon $g-2$ anomaly
1+29 pages, 5 figures, 1 table; references added, matches published version
JHEP 10 (2021) 064
10.1007/JHEP10(2021)064
PNUTP-21-A13, CTPU-PTC-21-25
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The new measurement of the anomalous magnetic moment of muon at the Fermilab Muon $g-2$ experiment has strengthened the significance of the discrepancy between the standard model prediction and the experimental observation from the BNL measurement. If new physics responsible for the muon $g-2$ anomaly is supersymmetr...
[ { "created": "Tue, 8 Jun 2021 10:34:55 GMT", "version": "v1" }, { "created": "Fri, 8 Oct 2021 01:23:18 GMT", "version": "v2" } ]
2021-10-11
[ [ "Jeong", "Kwang Sik", "" ], [ "Kawamura", "Junichiro", "" ], [ "Park", "Chan Beom", "" ] ]
The new measurement of the anomalous magnetic moment of muon at the Fermilab Muon $g-2$ experiment has strengthened the significance of the discrepancy between the standard model prediction and the experimental observation from the BNL measurement. If new physics responsible for the muon $g-2$ anomaly is supersymmetric...
1110.6397
Nicolas Viaux Nicolas Viaux
Georg G. Raffelt, Javier Redondo, Nicol\'as Viaux
The meV mass frontier of axion physics
5 pages, 1 figure
Phys.Rev. D84 (2011) 103008
10.1103/PhysRevD.84.103008
MPP-2011-11
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore consequences of the idea that the cooling speed of white dwarfs can be interpreted in terms of axion emission. In this case the Yukawa coupling to electrons has to be g_{ae} 10^-13, corresponding to an axion mass of a few meV. Axions then provide only a small fraction of the cosmic cold dark matter, wherea...
[ { "created": "Fri, 28 Oct 2011 17:04:17 GMT", "version": "v1" }, { "created": "Thu, 22 Aug 2013 18:18:29 GMT", "version": "v2" } ]
2015-02-02
[ [ "Raffelt", "Georg G.", "" ], [ "Redondo", "Javier", "" ], [ "Viaux", "Nicolás", "" ] ]
We explore consequences of the idea that the cooling speed of white dwarfs can be interpreted in terms of axion emission. In this case the Yukawa coupling to electrons has to be g_{ae} 10^-13, corresponding to an axion mass of a few meV. Axions then provide only a small fraction of the cosmic cold dark matter, whereas ...
hep-ph/9507435
Jifang Zhang
Nimai C. Mukhopadhyay, J.-F. Zhang and M. Benmerrouche
Photo- and electroproduction of the eta and eta-prime mesons
6 pages,including 2 figs.(psfig)
PiN Newslett.10:81-86,1995
null
RPI-N-101-95
hep-ph nucl-th
null
We discuss the eta and eta prime photo- and electroproduction as a way to probe the nucleon resonance structure.
[ { "created": "Thu, 27 Jul 1995 14:31:25 GMT", "version": "v1" }, { "created": "Fri, 28 Jul 1995 21:44:06 GMT", "version": "v2" } ]
2011-04-20
[ [ "Mukhopadhyay", "Nimai C.", "" ], [ "Zhang", "J. -F.", "" ], [ "Benmerrouche", "M.", "" ] ]
We discuss the eta and eta prime photo- and electroproduction as a way to probe the nucleon resonance structure.
hep-ph/9502351
Arnon Dar
Arnon Dar (Technion, Haifa 32000, Israel)
ASTROPHYSICAL EVIDENCE ON PHYSICS BEYOND THE STANDARD MODEL
Invited talk to be published in ``Future Physics and Accelerators'' (ed. M. Chaichian), proceedings of the 1st Arctic Workshop on Future Physics And Accelerators, Sariselka, Lapland, Finland, August 16-22, 1994. Figures upon request.
null
null
null
hep-ph astro-ph
null
Astrophysics and cosmology can be used to test the standard model of particle physics under conditions and over distance and time scales not accessible to laboratory experiments. Most of the astrophysical observations are in good agreement with the standard model. In particular, primordial nucleosynthesis, supernova ...
[ { "created": "Mon, 20 Feb 1995 13:42:38 GMT", "version": "v1" } ]
2016-09-01
[ [ "Dar", "Arnon", "", "Technion, Haifa 32000, Israel" ] ]
Astrophysics and cosmology can be used to test the standard model of particle physics under conditions and over distance and time scales not accessible to laboratory experiments. Most of the astrophysical observations are in good agreement with the standard model. In particular, primordial nucleosynthesis, supernova ex...
1607.06558
Christophe Bronner
Christophe Bronner, Mark Hartz
Tuning of the Charged Hadrons Multiplicities for Deep Inelastic Interactions in NEUT
4 pages, 3 figures, proceedings for a poster presented at NuINT2015
null
10.7566/JPSCP.12.010041
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We describe a procedure to tune the charged hadron multiplicities for deep inelastic events produced by the NEUT neutrino interaction generator. This tuning uses a model based on Koba-Nielsen-Olesen scaling, whose parameters are obtained by fitting multiplicity data from deuterium bubble chamber experiments. After tu...
[ { "created": "Fri, 22 Jul 2016 04:28:30 GMT", "version": "v1" } ]
2016-12-21
[ [ "Bronner", "Christophe", "" ], [ "Hartz", "Mark", "" ] ]
We describe a procedure to tune the charged hadron multiplicities for deep inelastic events produced by the NEUT neutrino interaction generator. This tuning uses a model based on Koba-Nielsen-Olesen scaling, whose parameters are obtained by fitting multiplicity data from deuterium bubble chamber experiments. After tuni...
2305.19078
Wei Kou
Wei Kou, Xurong Chen
Mechanical structures inside proton with configurational entropy language
7 pages, 3 figures and 1 table. Accepted by Physics letter B
null
null
null
hep-ph hep-th
http://creativecommons.org/licenses/by/4.0/
The structure of the proton remains a significant challenge within the field of Quantum Chromodynamics, with the origin of its spin and mass still lacking a satisfactory explanation. In this study, we utilize the gravitational form factor of the proton as the foundation for constructing the configurational entropy of...
[ { "created": "Tue, 30 May 2023 14:41:34 GMT", "version": "v1" }, { "created": "Thu, 21 Sep 2023 03:16:08 GMT", "version": "v2" } ]
2023-09-22
[ [ "Kou", "Wei", "" ], [ "Chen", "Xurong", "" ] ]
The structure of the proton remains a significant challenge within the field of Quantum Chromodynamics, with the origin of its spin and mass still lacking a satisfactory explanation. In this study, we utilize the gravitational form factor of the proton as the foundation for constructing the configurational entropy of t...
2403.06929
Daniel Reichelt
Aude Gehrmann-De Ridder, Christian T Preuss, Daniel Reichelt, Steffen Schumann
NLO+NLL' accurate predictions for three-jet event shapes in hadronic Higgs decays
24 pages, 6 figures, version accepted for publication in JHEP
null
null
MCNET-24-03, ZU-TH 16/24, IPPP/24/09
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present resummed predictions at next-to-leading logarithmic accuracy matched to the exact next-to-leading order results for a set of classical event-shape observables in hadronic Higgs decays, i.e., for the channels $H\to gg$ and $H\to b\bar{b}$. We furthermore consider soft-drop grooming of the hadronic final sta...
[ { "created": "Mon, 11 Mar 2024 17:17:08 GMT", "version": "v1" }, { "created": "Sat, 29 Jun 2024 00:05:34 GMT", "version": "v2" } ]
2024-07-02
[ [ "Ridder", "Aude Gehrmann-De", "" ], [ "Preuss", "Christian T", "" ], [ "Reichelt", "Daniel", "" ], [ "Schumann", "Steffen", "" ] ]
We present resummed predictions at next-to-leading logarithmic accuracy matched to the exact next-to-leading order results for a set of classical event-shape observables in hadronic Higgs decays, i.e., for the channels $H\to gg$ and $H\to b\bar{b}$. We furthermore consider soft-drop grooming of the hadronic final state...
2404.05958
Tao-Ran Hu
Tao-Ran Hu, Su Chen, Feng-Kun Guo
Entanglement suppression and low-energy scattering of heavy mesons
28 pages, 3 figures; Version to appear in Phys. Rev. D
Phys. Rev. D 110 (2024) 014001
null
null
hep-ph hep-ex hep-th nucl-th quant-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recently entanglement suppression was proposed to be one possible origin of emergent symmetries. Here we test this conjecture in the context of heavy meson scatterings. The low-energy interactions of $D^{(*)}\bar D^{(*)}$ and $D^{(*)} D^{(*)}$ are closely related to the hadronic molecular candidates $X(3872)$ and $T_...
[ { "created": "Tue, 9 Apr 2024 02:40:29 GMT", "version": "v1" }, { "created": "Wed, 26 Jun 2024 03:10:53 GMT", "version": "v2" }, { "created": "Thu, 27 Jun 2024 02:50:05 GMT", "version": "v3" } ]
2024-07-11
[ [ "Hu", "Tao-Ran", "" ], [ "Chen", "Su", "" ], [ "Guo", "Feng-Kun", "" ] ]
Recently entanglement suppression was proposed to be one possible origin of emergent symmetries. Here we test this conjecture in the context of heavy meson scatterings. The low-energy interactions of $D^{(*)}\bar D^{(*)}$ and $D^{(*)} D^{(*)}$ are closely related to the hadronic molecular candidates $X(3872)$ and $T_{c...
hep-ph/0301097
Bob McElrath
Vernon Barger, Tao Han, Paul Langacker, Bob McElrath, Peter Zerwas
Effects of genuine dimension-six Higgs operators
21 pages, 17 figures; typos corrected and references added
Phys.Rev.D67:115001,2003
10.1103/PhysRevD.67.115001
null
hep-ph
null
We systematically discuss the consequences of genuine dimension-six Higgs operators. These operators are not subject to stringent constraints from electroweak precision data. However, they can modify the couplings of the Higgs boson to electroweak gauge bosons and, in particular, the Higgs self-interactions. We study...
[ { "created": "Tue, 14 Jan 2003 18:53:41 GMT", "version": "v1" }, { "created": "Wed, 5 Feb 2003 01:53:54 GMT", "version": "v2" } ]
2009-09-15
[ [ "Barger", "Vernon", "" ], [ "Han", "Tao", "" ], [ "Langacker", "Paul", "" ], [ "McElrath", "Bob", "" ], [ "Zerwas", "Peter", "" ] ]
We systematically discuss the consequences of genuine dimension-six Higgs operators. These operators are not subject to stringent constraints from electroweak precision data. However, they can modify the couplings of the Higgs boson to electroweak gauge bosons and, in particular, the Higgs self-interactions. We study t...
hep-ph/0307030
Gerhard Ecker
V. Cirigliano, A. Pich, G. Ecker, H. Neufeld
Isospin violation in epsilon'
4 pages
Phys.Rev.Lett. 91 (2003) 162001
10.1103/PhysRevLett.91.162001
IFIC/03-29, UWThPh-2003-2
hep-ph
null
On the basis of a next-to-leading-order calculation in chiral perturbation theory, the first complete analysis of isospin breaking for direct CP violation in K^0 -> 2 pi decays is performed. We find a destructive interference between three different sources of isospin violation in the CP violation parameter epsilon'....
[ { "created": "Wed, 2 Jul 2003 09:51:01 GMT", "version": "v1" } ]
2009-11-10
[ [ "Cirigliano", "V.", "" ], [ "Pich", "A.", "" ], [ "Ecker", "G.", "" ], [ "Neufeld", "H.", "" ] ]
On the basis of a next-to-leading-order calculation in chiral perturbation theory, the first complete analysis of isospin breaking for direct CP violation in K^0 -> 2 pi decays is performed. We find a destructive interference between three different sources of isospin violation in the CP violation parameter epsilon'. W...
2006.15112
William DeRocco
William DeRocco, Peter W. Graham, Surjeet Rajendran
Exploring the robustness of stellar cooling constraints on light particles
9 pages, 1 figure; v2 matches PRD version
Phys. Rev. D 102, 075015 (2020)
10.1103/PhysRevD.102.075015
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Stellar cooling arguments place strict restrictions on a wide variety of models of new physics. In this paper, we argue that mechanisms to evade these constraints are restricted by thermodynamic arguments, then present a minimal model extension that allows new particles to evade all stellar constraints. In doing this...
[ { "created": "Fri, 26 Jun 2020 17:19:55 GMT", "version": "v1" }, { "created": "Tue, 13 Oct 2020 17:48:43 GMT", "version": "v2" } ]
2020-10-14
[ [ "DeRocco", "William", "" ], [ "Graham", "Peter W.", "" ], [ "Rajendran", "Surjeet", "" ] ]
Stellar cooling arguments place strict restrictions on a wide variety of models of new physics. In this paper, we argue that mechanisms to evade these constraints are restricted by thermodynamic arguments, then present a minimal model extension that allows new particles to evade all stellar constraints. In doing this, ...
2007.06401
BoQiang Lu
Cheng-Wei Chiang and Bo-Qiang Lu
Evidence of a simple dark sector from XENON1T excess
5 pages, 3 figures. v2: minor changes to match the published version
Phys. Rev. D 102, 123006 (2020)
10.1103/PhysRevD.102.123006
null
hep-ph astro-ph.HE
http://creativecommons.org/licenses/by-sa/4.0/
We propose that the nearly massless dark photons produced from the annihilation of keV dark fermions in the Galaxy can induce the excess of electron recoil events recently observed in the XENON1T experiment. The minimal model for this is the extension of a $U(1)_{X}$ gauge symmetry, under which the dark photon couple...
[ { "created": "Mon, 13 Jul 2020 14:26:54 GMT", "version": "v1" }, { "created": "Thu, 3 Dec 2020 02:19:32 GMT", "version": "v2" } ]
2020-12-04
[ [ "Chiang", "Cheng-Wei", "" ], [ "Lu", "Bo-Qiang", "" ] ]
We propose that the nearly massless dark photons produced from the annihilation of keV dark fermions in the Galaxy can induce the excess of electron recoil events recently observed in the XENON1T experiment. The minimal model for this is the extension of a $U(1)_{X}$ gauge symmetry, under which the dark photon couples ...
hep-ph/9808370
sergei Gninenko
S.N.Gninenko and N.V.Krasnikov
Limits on the magnetic moment of sterile neutrino and two-photon neutrino decay
13 pages, LaTex, 2 eps fugures included. 2 references are added. Submitted to Phys. Lett. B
Phys.Lett. B450 (1999) 165-172
10.1016/S0370-2693(99)00130-6
INR-1033/98
hep-ph
null
It is shown that the non-zero transition magnetic moment ($\mu_{tran}$) between the sterile neutrino ($\nu_{s}$) and the muon neutrino ($\nu_{\mu}$) could be effectively searched for via the Primakoff effect, in the process of $\nu_{\mu} Z \to \nu_{s}Z$ conversion in the external Coulomb field of a nucleus $Z$, with ...
[ { "created": "Thu, 20 Aug 1998 10:27:52 GMT", "version": "v1" }, { "created": "Mon, 11 Jan 1999 15:27:01 GMT", "version": "v2" } ]
2009-10-31
[ [ "Gninenko", "S. N.", "" ], [ "Krasnikov", "N. V.", "" ] ]
It is shown that the non-zero transition magnetic moment ($\mu_{tran}$) between the sterile neutrino ($\nu_{s}$) and the muon neutrino ($\nu_{\mu}$) could be effectively searched for via the Primakoff effect, in the process of $\nu_{\mu} Z \to \nu_{s}Z$ conversion in the external Coulomb field of a nucleus $Z$, with th...
hep-ph/0307253
C. A. de S. Pires
C. A de S. Pires and P. S. Rodrigues da Silva
Spontaneous breaking of the lepton number and invisible majoron in a 3-3-1 model
discussion on \rho parameter added, refs. added, to appear in EPJC
Eur.Phys.J.C36:397-403,2004
10.1140/epjc/s2004-01945-7
null
hep-ph
null
In this work we implement the spontaneous breaking of the lepton number in the version II of the 3-3-1 models and study their phenomenological consequences. The main result of this work is that our majoron is invisible even though it belongs to a triplet representation by the 3-3-1 symmetry.
[ { "created": "Sun, 20 Jul 2003 13:01:37 GMT", "version": "v1" }, { "created": "Thu, 3 Jun 2004 16:36:20 GMT", "version": "v2" } ]
2011-02-22
[ [ "Pires", "C. A de S.", "" ], [ "da Silva", "P. S. Rodrigues", "" ] ]
In this work we implement the spontaneous breaking of the lepton number in the version II of the 3-3-1 models and study their phenomenological consequences. The main result of this work is that our majoron is invisible even though it belongs to a triplet representation by the 3-3-1 symmetry.
hep-ph/9505317
Vladimir Braun
V.M. Braun
QCD Renormalons and Higher Twist Effects
7 pages, LaTex, to appear in the Proceedings of the XXXth Rencontres de Moriond, ``QCD and High Energy Hadronic Interactions'', Les Arcs, France, March 1995
null
null
null
hep-ph
null
I give a short review of the relation of infrared renormalons in QCD and higher twist effects, with the emphasis on possible applications. In particular, I present estimates of renormalon-induced uncertainties in deep inelastic sum rules and explain how the renormalons can potentially be used to unravel the structure...
[ { "created": "Tue, 16 May 1995 13:58:06 GMT", "version": "v1" } ]
2007-05-23
[ [ "Braun", "V. M.", "" ] ]
I give a short review of the relation of infrared renormalons in QCD and higher twist effects, with the emphasis on possible applications. In particular, I present estimates of renormalon-induced uncertainties in deep inelastic sum rules and explain how the renormalons can potentially be used to unravel the structure o...
hep-ph/0202255
Kenneth Lane
Kenneth Lane
Two Lectures on Technicolor
60 pages, LaTex, with two postscript figures
null
null
FERMILAB-PUB-02/040-T; BUHEP-02-15
hep-ph
null
These two lectures on technicolor and extended technicolor (ETC) were presented at l'Ecole de GIF at LAPP, Annecy-le-Vieux, France, in September 2001. In Lecture I, the motivation and structure of this theory of dynamical breaking of electroweak and flavor symmetries is summarized. The main phenomenological obstacles...
[ { "created": "Tue, 26 Feb 2002 23:16:43 GMT", "version": "v1" } ]
2007-05-23
[ [ "Lane", "Kenneth", "" ] ]
These two lectures on technicolor and extended technicolor (ETC) were presented at l'Ecole de GIF at LAPP, Annecy-le-Vieux, France, in September 2001. In Lecture I, the motivation and structure of this theory of dynamical breaking of electroweak and flavor symmetries is summarized. The main phenomenological obstacles t...
hep-ph/9912469
W. James Stirling
Carlo Ewerz, Lynne H. Orr, W. James Stirling, Bryan R. Webber
BFKL dynamics at hadron colliders
6 pages, LaTeX, 3 figures, epsfig, contribution to the proceedings of the UK Phenomenology Workshop on Collider Physics, 19-24 September 1999, Durham, to be published in J. Phys. G
J.Phys.G26:696-701,2000
10.1088/0954-3899/26/5/329
DTP/99/114, DAMTP-1999-179, Cavendish-HEP-99/19
hep-ph
null
Hadron colliders can provide important tests of BFKL `small-x' dynamics. We discuss two examples of such tests, the inclusive dijet jet cross section at large rapidity separation and the number of associated `mini-jets' in Higgs boson production.
[ { "created": "Wed, 22 Dec 1999 15:56:48 GMT", "version": "v1" } ]
2008-11-26
[ [ "Ewerz", "Carlo", "" ], [ "Orr", "Lynne H.", "" ], [ "Stirling", "W. James", "" ], [ "Webber", "Bryan R.", "" ] ]
Hadron colliders can provide important tests of BFKL `small-x' dynamics. We discuss two examples of such tests, the inclusive dijet jet cross section at large rapidity separation and the number of associated `mini-jets' in Higgs boson production.
1211.6447
Richard Ruiz
Tao Han, Ian Lewis, Richard Ruiz, Zong-guo Si
Lepton Number Violation and W' Chiral Couplings at the LHC
44 pages, 17 Figures; v2 journal version
Phys. Rev. D 87, 035011 (2013)
10.1103/PhysRevD.87.035011
PITT-PACC-1211
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the observability for a heavy Majorana neutrino N along with a new charged gauge boson W' at the LHC. We emphasize the complementarity of these two particles in their production and decay to unambiguously determine their properties. We show that the Majorana nature of N can be verified by the lepton-number v...
[ { "created": "Tue, 27 Nov 2012 21:04:36 GMT", "version": "v1" }, { "created": "Thu, 7 Feb 2013 21:22:09 GMT", "version": "v2" } ]
2013-02-11
[ [ "Han", "Tao", "" ], [ "Lewis", "Ian", "" ], [ "Ruiz", "Richard", "" ], [ "Si", "Zong-guo", "" ] ]
We study the observability for a heavy Majorana neutrino N along with a new charged gauge boson W' at the LHC. We emphasize the complementarity of these two particles in their production and decay to unambiguously determine their properties. We show that the Majorana nature of N can be verified by the lepton-number vio...
1604.02344
Fulvia De Fazio
Andrzej J. Buras and Fulvia De Fazio
331 Models Facing the Tensions in $\Delta F=2$ Processes with the Impact on $\varepsilon^\prime/\varepsilon$, $B_s\to\mu^+\mu^-$ and $B\to K^*\mu^+\mu^-$
LaTeX, 24 pages, 16 figures. Discussion on $V_{ub}$ and $V_{cb}$ improved, two more figures added, conclusions unchanged
null
10.1007/JHEP08(2016)115
FLAVOUR(267104)-ERC-118; BARI-TH/16-705
hep-ph hep-ex hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivated by the recently improved lattice QCD results on the hadronic matrix elements entering $\Delta M_{s,d}$ in $B_{s,d}^0-\bar B_{s,d}^0$ mixings and the resulting increased tensions between $\Delta M_{s,d}$ and $\varepsilon_K$ in the Standard Model and CMFV models, we demonstrate that these tensions can be remo...
[ { "created": "Fri, 8 Apr 2016 13:06:36 GMT", "version": "v1" }, { "created": "Wed, 29 Jun 2016 09:05:01 GMT", "version": "v2" } ]
2016-09-21
[ [ "Buras", "Andrzej J.", "" ], [ "De Fazio", "Fulvia", "" ] ]
Motivated by the recently improved lattice QCD results on the hadronic matrix elements entering $\Delta M_{s,d}$ in $B_{s,d}^0-\bar B_{s,d}^0$ mixings and the resulting increased tensions between $\Delta M_{s,d}$ and $\varepsilon_K$ in the Standard Model and CMFV models, we demonstrate that these tensions can be remove...
hep-ph/9609468
Ezio Maina
E. Maina (1), R. Pittau (2) and M. Pizzio (1) ((1) U. of Torino and INFN-Torino, IT, (2) PSI, Villigen, CH)
CC10 at ${\cal O}(\alpha_s )$: QCD corrections to $e^+ e^- \to \mu^- \bar \nu_\mu u \bar d$ at LEP2 and the Next Linear Collider
10 LaTex pages, 3 figs using Axodraw.sty, 3 ps figures
Phys.Lett. B393 (1997) 445-451
10.1016/S0370-2693(96)01656-5
DFTT 55/96, PSI-PR-96-23
hep-ph
null
QCD one-loop corrections to the semileptonic process $e^+ e^- \to \mu^- \bar \nu_\mu u \bar d$ are computed. We compare the exact calculation with a ``naive'' approach to strong radiative corrections which has been widely used in the literature and discuss the phenomenological relevance of QCD contributions for LEP2 ...
[ { "created": "Wed, 25 Sep 1996 09:10:56 GMT", "version": "v1" } ]
2009-10-28
[ [ "Maina", "E.", "" ], [ "Pittau", "R.", "" ], [ "Pizzio", "M.", "" ] ]
QCD one-loop corrections to the semileptonic process $e^+ e^- \to \mu^- \bar \nu_\mu u \bar d$ are computed. We compare the exact calculation with a ``naive'' approach to strong radiative corrections which has been widely used in the literature and discuss the phenomenological relevance of QCD contributions for LEP2 an...
0705.2326
Federico Alberto Ceccopieri
Federico A. Ceccopieri (Univ. di Parma) and Luca Trentadue (INFN Parma)
A New Fracture Function Approach to QCD Initial State Radiation
10 pages, 5 figures, revtex4
Phys.Lett.B655:15-25,2007
10.1016/j.physletb.2007.07.074
null
hep-ph
null
Ordinary fracture functions, describing hadrons production in the deep inelastic scattering target fragmentation region, are generalized to account for the production of hadrons in arbitrary number, thus offering a renewed framework for dealing with QCD initial state radiation. We also propose a new jet-like observab...
[ { "created": "Wed, 16 May 2007 10:59:59 GMT", "version": "v1" } ]
2008-11-26
[ [ "Ceccopieri", "Federico A.", "", "Univ. di Parma" ], [ "Trentadue", "Luca", "", "INFN\n Parma" ] ]
Ordinary fracture functions, describing hadrons production in the deep inelastic scattering target fragmentation region, are generalized to account for the production of hadrons in arbitrary number, thus offering a renewed framework for dealing with QCD initial state radiation. We also propose a new jet-like observable...
0712.1691
A. D. Polosa
Ad Polosa
Hints of a New Spectroscopy
Proceedings of the CHARM 2007 Workshop, Ithaca, NY, August 5-8, 2007
ECONF C070805:36,2007
null
null
hep-ph
null
There are several reasons to believe that some of the new particles observed at B-factories have no ordinary quark composition. We briefly illustrate the diquark-antidiquark model and the recent experimental discoveries which confirm some of its most striking predictions.
[ { "created": "Tue, 11 Dec 2007 13:31:36 GMT", "version": "v1" } ]
2011-06-15
[ [ "Polosa", "Ad", "" ] ]
There are several reasons to believe that some of the new particles observed at B-factories have no ordinary quark composition. We briefly illustrate the diquark-antidiquark model and the recent experimental discoveries which confirm some of its most striking predictions.
hep-ph/9707257
Carlo Ewerz
C. Ewerz (Hamburg University)
Towards an Effective Theory of Small-x QCD
10 pages, 7 figures included, Latex using epsfig.sty and sprocl.sty; Talk presented at the International School of Subnuclear Physics, 34th Course: Effective Theories and Fundamental Interactions, Erice, Sicily, July 1996; to appear in the proceedings
null
null
null
hep-ph
null
In this talk I describe recent progress in investigating the high energy limit of perturbative QCD. I review some of the steps that have been done in the direction of constructing an effective field theory for this limit. I describe some of its building blocks and explain why we expect the effective theory to be a 2+...
[ { "created": "Sun, 6 Jul 1997 18:44:50 GMT", "version": "v1" } ]
2007-05-23
[ [ "Ewerz", "C.", "", "Hamburg University" ] ]
In this talk I describe recent progress in investigating the high energy limit of perturbative QCD. I review some of the steps that have been done in the direction of constructing an effective field theory for this limit. I describe some of its building blocks and explain why we expect the effective theory to be a 2+1-...
hep-ph/0412156
Andreas Metz
A. Metz
Present understanding of the nucleon spin structure
10 pages, talk given at SPIN04, Trieste, Oct. 11-16 2004
null
10.1142/9789812701909_0001
null
hep-ph hep-ex
null
The present understanding of the spin structure of the nucleon is briefly reviewed. The main focus is on parton helicity distributions, orbital angular momentum of partons as defined through generalized parton distributions, as well as single spin asymmetries and time-reversal odd correlation functions.
[ { "created": "Mon, 13 Dec 2004 10:56:30 GMT", "version": "v1" } ]
2017-08-23
[ [ "Metz", "A.", "" ] ]
The present understanding of the spin structure of the nucleon is briefly reviewed. The main focus is on parton helicity distributions, orbital angular momentum of partons as defined through generalized parton distributions, as well as single spin asymmetries and time-reversal odd correlation functions.
hep-ph/9508226
David Coulson
D. Coulson, Z. Lalak and B. Ovrut
Non-Equilibrium Phase Transitions and Domain Walls
uu-encoded postscript file. To appear in proceedings of PASCOS 95, 15 pages
null
null
UPR/675-T
hep-ph
null
Non-equilibrium phase transitions of a scalar field in an expanding spacetime are discussed. These transitions are shown to lead, for appropriate potential energy functions, to a biased choice of vacuum structure which can be analytically described using percolation theory. The initial domain wall networks, which for...
[ { "created": "Thu, 3 Aug 1995 20:59:50 GMT", "version": "v1" } ]
2007-05-23
[ [ "Coulson", "D.", "" ], [ "Lalak", "Z.", "" ], [ "Ovrut", "B.", "" ] ]
Non-equilibrium phase transitions of a scalar field in an expanding spacetime are discussed. These transitions are shown to lead, for appropriate potential energy functions, to a biased choice of vacuum structure which can be analytically described using percolation theory. The initial domain wall networks, which form ...
2402.14769
Ryan Plestid
Ryan Plestid
Generalized eikonal identities for charged currents
null
null
null
CALT-TH/2024-007
hep-ph hep-th nucl-th
http://creativecommons.org/licenses/by/4.0/
We discuss QED radiative corrections to contact operators coupling two heavy fields and one light field. New eikonal identities are derived in the static limit that demonstrate the equivalence of a class of ladder graphs to an equivalent theory with a single heavy-light vertex and a background Coulomb field which com...
[ { "created": "Thu, 22 Feb 2024 18:29:28 GMT", "version": "v1" } ]
2024-02-23
[ [ "Plestid", "Ryan", "" ] ]
We discuss QED radiative corrections to contact operators coupling two heavy fields and one light field. New eikonal identities are derived in the static limit that demonstrate the equivalence of a class of ladder graphs to an equivalent theory with a single heavy-light vertex and a background Coulomb field which commu...
2009.12843
Kazuo Fujikawa
Kazuo Fujikawa and Anca Tureanu
Parity of the neutron consistent with neutron-antineutron oscillations
19 pages. Some modifications in Appendix B were made. This version is going to be published in Phys. Rev. D
Phys. Rev. D 103, 065017 (2021)
10.1103/PhysRevD.103.065017
RIKEN-iTHEMS-Report-20
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the analysis of neutron-antineutron oscillations, it has been recently argued in the literature that the use of the $i\gamma^{0}$ parity $n^{p}(t,-\vec{x})=i\gamma^{0}n(t,-\vec{x})$ which is consistent with the Majorana condition is mandatory and that the ordinary parity transformation of the neutron field $n^{p}(...
[ { "created": "Sun, 27 Sep 2020 13:48:44 GMT", "version": "v1" }, { "created": "Mon, 26 Oct 2020 03:18:06 GMT", "version": "v2" }, { "created": "Fri, 12 Mar 2021 06:47:17 GMT", "version": "v3" } ]
2021-04-07
[ [ "Fujikawa", "Kazuo", "" ], [ "Tureanu", "Anca", "" ] ]
In the analysis of neutron-antineutron oscillations, it has been recently argued in the literature that the use of the $i\gamma^{0}$ parity $n^{p}(t,-\vec{x})=i\gamma^{0}n(t,-\vec{x})$ which is consistent with the Majorana condition is mandatory and that the ordinary parity transformation of the neutron field $n^{p}(t,...
hep-ph/0011006
Alon Faraggi
Alon E. Faraggi
Proton Stability and Superstring Z'
17 pages. Standard Latex. References added. PLB version
Phys.Lett. B499 (2001) 147-157
10.1016/S0370-2693(01)00021-1
OUTP-00-46P
hep-ph hep-th
null
Recently it was argued that proton lifetime limits impose that the scale of quantum gravity must be above 10^{16} GeV. By studying the proton stability in the context of realistic heterotic-string models, I propose that proton longevity necessitates the existence of an additional U(1)_{Z'} symmetry, which is of non-G...
[ { "created": "Wed, 1 Nov 2000 12:17:40 GMT", "version": "v1" }, { "created": "Mon, 18 Dec 2000 12:53:21 GMT", "version": "v2" } ]
2009-10-31
[ [ "Faraggi", "Alon E.", "" ] ]
Recently it was argued that proton lifetime limits impose that the scale of quantum gravity must be above 10^{16} GeV. By studying the proton stability in the context of realistic heterotic-string models, I propose that proton longevity necessitates the existence of an additional U(1)_{Z'} symmetry, which is of non-GUT...
1009.3366
Motoi Endo
Motoi Endo, Satoshi Shirai and Tsutomu T. Yanagida
Split Generation in the SUSY Mass Spectrum and B_s-{\bar B}_s Mixing
15 pages, 1 figure
Prog.Theor.Phys.125:921-932,2011
10.1143/PTP.125.921
UT-10-17, IPMU-10-0158
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show that the like-sign di-muon anomaly reported recently by the D0 Collaboration can be explained in the supersymmetric standard model (SM) if the squarks and the sleptons in the first two generations have relatively small, but degenerate mass spectrum, and those in the third generation are larger as O(1-10)TeV. ...
[ { "created": "Fri, 17 Sep 2010 08:37:24 GMT", "version": "v1" } ]
2011-08-19
[ [ "Endo", "Motoi", "" ], [ "Shirai", "Satoshi", "" ], [ "Yanagida", "Tsutomu T.", "" ] ]
We show that the like-sign di-muon anomaly reported recently by the D0 Collaboration can be explained in the supersymmetric standard model (SM) if the squarks and the sleptons in the first two generations have relatively small, but degenerate mass spectrum, and those in the third generation are larger as O(1-10)TeV. Th...
1711.11444
Abhishek Atreya
Abhishek Atreya and Soma Sanyal
Primordial magnetic field generation in the Quark Gluon Plasma phase
9 pages, 5 figures. Accepted for publication in Eur. Phys. J. C
null
null
null
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work we investigate the possibility of generation of primordial magnetic field in the early universe near the QCD phase transition epoch via the collapse of $Z(3)$ domains. The $Z(3)$ domain walls arise in the deconfined phase of the QCD (above $T\sim 200$ MeV) and their collapse leads to a net quark concentr...
[ { "created": "Wed, 29 Nov 2017 10:55:29 GMT", "version": "v1" }, { "created": "Mon, 17 Dec 2018 12:40:14 GMT", "version": "v2" } ]
2018-12-18
[ [ "Atreya", "Abhishek", "" ], [ "Sanyal", "Soma", "" ] ]
In this work we investigate the possibility of generation of primordial magnetic field in the early universe near the QCD phase transition epoch via the collapse of $Z(3)$ domains. The $Z(3)$ domain walls arise in the deconfined phase of the QCD (above $T\sim 200$ MeV) and their collapse leads to a net quark concentrat...
hep-ph/9309209
Leszek Roszkowski
Leszek Roszkowski
SUSY-GUT Higgs Probe at Future $e^+e^-$ Colliders
5 pages, LaTeX, one figure in PostScript included in a uuencoded form; Talk at the Workshop on Physics and Experiments with Linear $e^+e^-$ Colliders, Waikaloa, Hawaii, April 26-30, 1993, to appear in the Proceedings; University of Michigan preprint UM-TH-93-22 (August 1993)
null
null
null
hep-ph
null
Several independent constraints on the minimal supersymmetric model with constraints from grand unifications and cosmology select the region of low-energy supersymmetry below ${\cal O}$(1~TeV). The resulting mass of the lightest Higgs boson can probably be covered at LEP II only if its beam energy exceeds 200~GeV, an...
[ { "created": "Wed, 1 Sep 1993 21:56:34 GMT", "version": "v1" } ]
2007-05-23
[ [ "Roszkowski", "Leszek", "" ] ]
Several independent constraints on the minimal supersymmetric model with constraints from grand unifications and cosmology select the region of low-energy supersymmetry below ${\cal O}$(1~TeV). The resulting mass of the lightest Higgs boson can probably be covered at LEP II only if its beam energy exceeds 200~GeV, and ...
2103.06719
Xingbo Zhao
Xingbo Zhao, Kaiyu Fu, Hengfei Zhao, James P. Vary
Positronium: an illustration of nonperturbative renormalization in a basis light-front approach
4 pages, 4 figures, contribution to the proceedings of Light Cone 2019 - QCD on the light cone: from hadrons to heavy ions,16-20 September 2019, Ecole Polytechnique, Palaiseau, France. arXiv admin note: substantial text overlap with arXiv:2004.02456
PoS LC2019 (2020) 090
10.22323/1.374.0090
null
hep-ph nucl-th
http://creativecommons.org/licenses/by/4.0/
We calculate the mass spectrum and the structure of the positronium system at a strong coupling in a basis light-front approach. We start from the light-front QED Hamiltonian and retain one dynamical photon in our basis. We perform the fermion mass renormalization associated with the nonperturbative fermion self-ener...
[ { "created": "Thu, 11 Mar 2021 15:11:13 GMT", "version": "v1" } ]
2021-03-12
[ [ "Zhao", "Xingbo", "" ], [ "Fu", "Kaiyu", "" ], [ "Zhao", "Hengfei", "" ], [ "Vary", "James P.", "" ] ]
We calculate the mass spectrum and the structure of the positronium system at a strong coupling in a basis light-front approach. We start from the light-front QED Hamiltonian and retain one dynamical photon in our basis. We perform the fermion mass renormalization associated with the nonperturbative fermion self-energy...
2302.02235
Adiba Shaikh
Adiba Shaikh, Sadhana Dash and Basanta K. Nandi
Viscous QCD medium effects on the bottom quark transport coefficients
9 pages, 4 figures
null
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The bottom quark transport coefficients, i.e., drag and diffusion coefficients, have been studied for the collisional and soft gluon radiative processes within the viscous QCD medium. The thermal medium effects are incorporated using the effective fugacity quasiparticle model (EQPM). Both the shear and bulk viscous e...
[ { "created": "Sat, 4 Feb 2023 20:46:26 GMT", "version": "v1" } ]
2023-02-07
[ [ "Shaikh", "Adiba", "" ], [ "Dash", "Sadhana", "" ], [ "Nandi", "Basanta K.", "" ] ]
The bottom quark transport coefficients, i.e., drag and diffusion coefficients, have been studied for the collisional and soft gluon radiative processes within the viscous QCD medium. The thermal medium effects are incorporated using the effective fugacity quasiparticle model (EQPM). Both the shear and bulk viscous eff...
hep-ph/0602178
Pierpaolo Mastrolia
Ruth Britto, Bo Feng, Pierpaolo Mastrolia
The Cut-Constructible Part of QCD Amplitudes
78 pages, 3 figs
Phys.Rev.D73:105004,2006
10.1103/PhysRevD.73.105004
Imperial/TP/; ITFA-2006-07; UCLA/06/TEP/06;ZU-TH 07/06
hep-ph hep-th
null
Unitarity cuts are widely used in analytic computation of loop amplitudes in gauge theories such as QCD. We expand upon the technique introduced in hep-ph/0503132 to carry out any finite unitarity cut integral. This technique naturally separates the contributions of bubble, triangle and box integrals in one-loop ampl...
[ { "created": "Mon, 20 Feb 2006 19:01:49 GMT", "version": "v1" } ]
2011-05-05
[ [ "Britto", "Ruth", "" ], [ "Feng", "Bo", "" ], [ "Mastrolia", "Pierpaolo", "" ] ]
Unitarity cuts are widely used in analytic computation of loop amplitudes in gauge theories such as QCD. We expand upon the technique introduced in hep-ph/0503132 to carry out any finite unitarity cut integral. This technique naturally separates the contributions of bubble, triangle and box integrals in one-loop amplit...
hep-ph/9404231
Ian Moss
Ian G. Moss
Finite temperature effective actions for double wells
13 pages, NCL93-TP8 (REVTEX)
null
null
null
hep-ph
null
The problem of calculating the effective potential for a real scalar field with a double--well potential is a possible preliminary to understanding symmetry breaking phase transitions in the early universe. It is argued here that it is necessary to include multiple saddle points in the path integral formalism and tha...
[ { "created": "Thu, 7 Apr 1994 16:49:23 GMT", "version": "v1" } ]
2007-05-23
[ [ "Moss", "Ian G.", "" ] ]
The problem of calculating the effective potential for a real scalar field with a double--well potential is a possible preliminary to understanding symmetry breaking phase transitions in the early universe. It is argued here that it is necessary to include multiple saddle points in the path integral formalism and that ...
hep-ph/9807398
Mohammad Ahmady
Mohammad R. Ahmady (RIKEN) and Emi Kou (Ochanomizu Univ.)
Possible large direct CP asymmetry in hadronic B+- -> \pi+- \eta' decays
13 pages, Revtex, 4 figures (included)
Phys.Rev. D59 (1999) 054014
10.1103/PhysRevD.59.054014
RIKEN-AF-NP-292, OCHA-PP-121
hep-ph
null
We calculate the branching ratio and direct CP asymmetry in nonleptonic two body B decays B^+- ->\pi^+- \eta'. It is shown that the tree diagram and gluon fusion mechanism via penguin diagram have comparable contributions to these decays which, as a result, could provide an interesting venue for investigating CP viol...
[ { "created": "Thu, 16 Jul 1998 17:45:43 GMT", "version": "v1" } ]
2009-10-31
[ [ "Ahmady", "Mohammad R.", "", "RIKEN" ], [ "Kou", "Emi", "", "Ochanomizu Univ." ] ]
We calculate the branching ratio and direct CP asymmetry in nonleptonic two body B decays B^+- ->\pi^+- \eta'. It is shown that the tree diagram and gluon fusion mechanism via penguin diagram have comparable contributions to these decays which, as a result, could provide an interesting venue for investigating CP violat...
2002.04515
Tanmoy Mondal
Eung Jin Chun, Tanmoy Mondal
Searching for a Light (pseudo)Scalar via the Yukawa Process at the ILC
Talk presented at the International Workshop on Future Linear Colliders (LCWS2019), Sendai, Japan, 28 October-1 November, 2019. C19-10-28
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Yukawa production of a light scalar can be explored at a linear collider. Light (pseudo)scalar can exist in extended Higgs models and an interesting example is the light pseudoscalar in Type-X two Higgs doublet model. The model can explain the anomalous magnetic moment of muon at large $\tan \beta$. We show that the ...
[ { "created": "Tue, 11 Feb 2020 16:17:05 GMT", "version": "v1" } ]
2020-02-12
[ [ "Chun", "Eung Jin", "" ], [ "Mondal", "Tanmoy", "" ] ]
Yukawa production of a light scalar can be explored at a linear collider. Light (pseudo)scalar can exist in extended Higgs models and an interesting example is the light pseudoscalar in Type-X two Higgs doublet model. The model can explain the anomalous magnetic moment of muon at large $\tan \beta$. We show that the av...
1306.4496
Sayantan Choudhury
Sayantan Choudhury, Anupam Mazumdar
An accurate bound on tensor-to-scalar ratio and the scale of inflation
13 pages, Revised version, Accepted for publication in Nuclear Physics B
Nucl. Phys. B 882 (2014) pp. 386-396
10.1016/j.nuclphysb.2014.03.005
null
hep-ph astro-ph.CO gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we provide an accurate bound on primordial gravitational waves, i.e. tensor-to-scalar ratio $(r)$ for a general class of single-field models of inflation where inflation occurs always below the Planck scale, and the field displacement during inflation remains sub-Planckian. If inflation has to make conn...
[ { "created": "Wed, 19 Jun 2013 11:31:43 GMT", "version": "v1" }, { "created": "Tue, 10 Dec 2013 17:48:16 GMT", "version": "v2" }, { "created": "Tue, 11 Mar 2014 08:31:18 GMT", "version": "v3" } ]
2014-04-03
[ [ "Choudhury", "Sayantan", "" ], [ "Mazumdar", "Anupam", "" ] ]
In this paper we provide an accurate bound on primordial gravitational waves, i.e. tensor-to-scalar ratio $(r)$ for a general class of single-field models of inflation where inflation occurs always below the Planck scale, and the field displacement during inflation remains sub-Planckian. If inflation has to make connec...
hep-ph/9907266
Erofeeva I. N.
I.N.Erofeeva (1), V.S.Murzin (1), V.A.Nikonov (2), Yu.M.Shabelski (2) ((1) Nuclear Physics Institue, Moscow State University, (2) St.Petersburg Nuclear Physics Institute)
Quark Model and Neutral Strange Secondary Production by Neutrino and Antineutrino Beams
6 pages, no figures, 2 tables
Phys.Atom.Nucl. 63 (2000) 1973-1975; Yad.Fiz. 63 (2000) 2065-2067
10.1134/1.1335096
null
hep-ph
null
The experimental data on $K^0$ and $\Lambda$ production by $\nu$ and $\bar{\nu}$ beams are compared with the predictions of quark model assuming that the direct production of secondaries dominates. Disagreement of these predictions with the data allows one to suppose that there exists considerable resonance decay con...
[ { "created": "Wed, 7 Jul 1999 13:51:05 GMT", "version": "v1" } ]
2009-10-31
[ [ "Erofeeva", "I. N.", "" ], [ "Murzin", "V. S.", "" ], [ "Nikonov", "V. A.", "" ], [ "Shabelski", "Yu. M.", "" ] ]
The experimental data on $K^0$ and $\Lambda$ production by $\nu$ and $\bar{\nu}$ beams are compared with the predictions of quark model assuming that the direct production of secondaries dominates. Disagreement of these predictions with the data allows one to suppose that there exists considerable resonance decay contr...
1202.0464
David M. Straub
Gino Isidori and David M. Straub
Minimal Flavour Violation and Beyond
14 pages, 5 figures. Review to appear in "Top and flavour physics in the LHC era" - Special Issue of The European Physical Journal C
null
10.1140/epjc/s10052-012-2103-1
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We review the formulation of the Minimal Flavour Violation (MFV) hypothesis in the quark sector, as well as some "variations on a theme" based on smaller flavour symmetry groups and/or less minimal breaking terms. We also review how these hypotheses can be tested in B decays and by means of other flavour-physics obse...
[ { "created": "Thu, 2 Feb 2012 15:33:14 GMT", "version": "v1" } ]
2015-06-04
[ [ "Isidori", "Gino", "" ], [ "Straub", "David M.", "" ] ]
We review the formulation of the Minimal Flavour Violation (MFV) hypothesis in the quark sector, as well as some "variations on a theme" based on smaller flavour symmetry groups and/or less minimal breaking terms. We also review how these hypotheses can be tested in B decays and by means of other flavour-physics observ...
2212.11516
Ippei Obata
Yuichiro Nakai, Ryo Namba, Ippei Obata
Peaky Production of Light Dark Photon Dark Matter
27 pages, 6 figures
null
null
RIKEN-iTHEMS-Report-22
hep-ph astro-ph.CO gr-qc hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore a mechanism to produce a light dark photon dark matter through a coupling between the dark photon field and a spectator scalar field which plays no role in the inflationary expansion of the Universe while rolling down its potential during the inflation. The motion of the spectator field efficiently produce...
[ { "created": "Thu, 22 Dec 2022 07:33:48 GMT", "version": "v1" } ]
2022-12-23
[ [ "Nakai", "Yuichiro", "" ], [ "Namba", "Ryo", "" ], [ "Obata", "Ippei", "" ] ]
We explore a mechanism to produce a light dark photon dark matter through a coupling between the dark photon field and a spectator scalar field which plays no role in the inflationary expansion of the Universe while rolling down its potential during the inflation. The motion of the spectator field efficiently produces ...
hep-ph/0301136
Damijan Janc
M. Rosina, D. Janc, D. Treleani and A. Del Fabbro
The Production and Decay of Heavy Dimesons
Talk presented at II International Workshop on Hadron Physics, 25-29 September 2002, Coimbra, Portugal. 9 pages LaTeX
AIP Conf.Proc. 660 (2003) 377-382
10.1063/1.1570587
null
hep-ph
null
We show that it is necessary to go beyond a single hadron (beyond the quark-antiquark or three-quark systems) in order to distinguish the colour structure of the effective quark-quark interaction and the relevance of 3-body forces. We critically discuss the proposed models which suggest the dimeson bb\bar{u}\bar{d} t...
[ { "created": "Fri, 17 Jan 2003 14:23:22 GMT", "version": "v1" } ]
2009-11-10
[ [ "Rosina", "M.", "" ], [ "Janc", "D.", "" ], [ "Treleani", "D.", "" ], [ "Del Fabbro", "A.", "" ] ]
We show that it is necessary to go beyond a single hadron (beyond the quark-antiquark or three-quark systems) in order to distinguish the colour structure of the effective quark-quark interaction and the relevance of 3-body forces. We critically discuss the proposed models which suggest the dimeson bb\bar{u}\bar{d} to ...
hep-ph/0209291
Chongxing Yue
Chongxing Yue, Yanming Zhang, Lanjun Liu
Non-universal gauge bosons $Z^{\prime}$ and lepton flavor-violation tau decays
Final version to appear in Phys. Lett. B. References added and typos corrected
Phys.Lett. B547 (2002) 252-256
10.1016/S0370-2693(02)02781-8
null
hep-ph
null
There are many models beyond the standard model predicting the existence of non-universal gauge bosons $Z^{\prime}$, which can give rise to very rich phenomena. We calculate the contributions of the non-universal gauge bosons $Z^{\prime}$, predicted by topcolor-assisted technicolor (TC2) models and flavor-universal T...
[ { "created": "Wed, 25 Sep 2002 03:50:46 GMT", "version": "v1" }, { "created": "Sat, 28 Sep 2002 12:05:29 GMT", "version": "v2" }, { "created": "Mon, 7 Oct 2002 03:13:01 GMT", "version": "v3" } ]
2009-11-07
[ [ "Yue", "Chongxing", "" ], [ "Zhang", "Yanming", "" ], [ "Liu", "Lanjun", "" ] ]
There are many models beyond the standard model predicting the existence of non-universal gauge bosons $Z^{\prime}$, which can give rise to very rich phenomena. We calculate the contributions of the non-universal gauge bosons $Z^{\prime}$, predicted by topcolor-assisted technicolor (TC2) models and flavor-universal TC2...
hep-ph/9506260
Pene
R. Aleksan, F. Buccella, A. Le Yaouanc, L. Oliver, O. P\`ene and J.-C. Raynal
Uncertainties on the CP Phase $\bfalpha$ due to Penguin Diagrams
18 pages
Phys.Lett. B356 (1995) 95-106
10.1016/0370-2693(95)00786-K
LPTHE-Orsay 95/22
hep-ph
null
A major problem in the determination of the the CP angle $\alpha$, that should be measured through modes of the type $B_d, \bar{B}_d \to \pi \pi , \cdots ,$ is the uncertainty coming from Penguin diagrams. We consider the different ground state modes $\pi \pi$, $\pi \rho$, $\rho \rho$, and, assuming the FSI phases to...
[ { "created": "Wed, 7 Jun 1995 18:29:58 GMT", "version": "v1" } ]
2009-10-28
[ [ "Aleksan", "R.", "" ], [ "Buccella", "F.", "" ], [ "Yaouanc", "A. Le", "" ], [ "Oliver", "L.", "" ], [ "Pène", "O.", "" ], [ "Raynal", "J. -C.", "" ] ]
A major problem in the determination of the the CP angle $\alpha$, that should be measured through modes of the type $B_d, \bar{B}_d \to \pi \pi , \cdots ,$ is the uncertainty coming from Penguin diagrams. We consider the different ground state modes $\pi \pi$, $\pi \rho$, $\rho \rho$, and, assuming the FSI phases to b...
1303.0693
Alexander Mitov
Michal Czakon and Alexander Mitov
Precision top pair production at hadron colliders
Based on talks given at the 11th DESY Workshop "Loops and Legs in Quantum Field Theory 2012", the 7th International Workshop on the CKM Unitarity Triangle "CKM 2012" and the 5th International Workshop on Top Quark Physics "Top 2012"
null
10.1088/1742-6596/452/1/012026
CERN-PH-TH/2012-358, TTK-13-03
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We demonstrate the impact of recent NNLO calculations on precision top quark phenomenology.
[ { "created": "Mon, 4 Mar 2013 13:08:15 GMT", "version": "v1" } ]
2015-06-15
[ [ "Czakon", "Michal", "" ], [ "Mitov", "Alexander", "" ] ]
We demonstrate the impact of recent NNLO calculations on precision top quark phenomenology.
hep-ph/9904260
Jan Kalinowski
Jan Kalinowski
Supersymmetry Searches at e^+e^- Linear Colliders
21 pages (LaTeX), 4 figures, using epsfig; presented at the Cracow Epiphany Conference on Electron-Positron Colliders, Cracow, January 5-10, 1999, to appear in Acta Phys. Pol
Acta Phys.Polon.B30:1921-1939,1999
null
IFT/99-05
hep-ph
null
The physics potential of discovering and exploring supersymmetry at future e^+e^- linear colliders is reviewed. Such colliders are planned to start to operate at a center-of-mass energy of 500 GeV to 800 GeV, with a final energy of about 2 TeV expected. They are ideal facilities for the discovery of supersymmetric pa...
[ { "created": "Wed, 7 Apr 1999 15:26:26 GMT", "version": "v1" } ]
2014-11-17
[ [ "Kalinowski", "Jan", "" ] ]
The physics potential of discovering and exploring supersymmetry at future e^+e^- linear colliders is reviewed. Such colliders are planned to start to operate at a center-of-mass energy of 500 GeV to 800 GeV, with a final energy of about 2 TeV expected. They are ideal facilities for the discovery of supersymmetric part...
0802.0255
Sergio Palomares-Ruiz
Davide Meloni (Rome III U.), Olga Mena (INFN, Rome & Rome U.), Christopher Orme, Sergio Palomares-Ruiz and Silvia Pascoli (Durham U., IPPP)
An intermediate gamma beta-beam neutrino experiment with long baseline
23 pp, 5 figs
JHEP 0807:115,2008
10.1088/1126-6708/2008/07/115
RM3-TH/08-4, Roma-TH-1465, IPPP/07/100, DCPT/07/200
hep-ph
null
In order to address some fundamental questions in neutrino physics a wide, future programme of neutrino oscillation experiments is currently under discussion. Among those, long baseline experiments will play a crucial role in providing information on the value of theta13, the type of neutrino mass ordering and on the...
[ { "created": "Sat, 2 Feb 2008 15:52:03 GMT", "version": "v1" } ]
2009-03-19
[ [ "Meloni", "Davide", "", "Rome III U." ], [ "Mena", "Olga", "", "INFN, Rome & Rome U." ], [ "Orme", "Christopher", "", "Durham U., IPPP" ], [ "Palomares-Ruiz", "Sergio", "", "Durham U., IPPP" ], [ "Pascoli", "Silvia", "", ...
In order to address some fundamental questions in neutrino physics a wide, future programme of neutrino oscillation experiments is currently under discussion. Among those, long baseline experiments will play a crucial role in providing information on the value of theta13, the type of neutrino mass ordering and on the v...
hep-ph/9305218
Peter White
P.L.White
Radiative Corrections to Supersymmetric Higgs Boson Masses
7 pages, SHEP-92/93-20
null
null
null
hep-ph
null
We discuss the large radiative corrections to the masses of supersymmetric Higgs bosons in the MSSM and in its simplest extension, the NMSSM, with particular attention paid to the bounds on the lightest CP-even Higgs mass found in both models. In the case of the MSSM, these corrections are found to be primarily assoc...
[ { "created": "Thu, 6 May 1993 15:44:24 GMT", "version": "v1" } ]
2007-05-23
[ [ "White", "P. L.", "" ] ]
We discuss the large radiative corrections to the masses of supersymmetric Higgs bosons in the MSSM and in its simplest extension, the NMSSM, with particular attention paid to the bounds on the lightest CP-even Higgs mass found in both models. In the case of the MSSM, these corrections are found to be primarily associa...
2402.05262
Laura Xiomara Gutierrez Guerrero Xiomara
A. Alfaro, L.X. Guti\'errez Guerrero, L. Albino and A. Raya
Perturbative analysis of the three-gluon vertex to one-loop
9 figures, 13 pages. arXiv admin note: text overlap with arXiv:hep-ph/9605348 by other authors
null
null
null
hep-ph hep-th
http://creativecommons.org/licenses/by/4.0/
In this study, we present a perturbative analysis of the three-gluon vertex for a kinematical symmetric configuration in dimension $n=4-2\epsilon$ and different covariant gauges.Our study can describe the form factors of the three gluon vertex in a wide range of momentum. We employ a momentum subtraction (MOM) scheme...
[ { "created": "Wed, 7 Feb 2024 21:11:57 GMT", "version": "v1" } ]
2024-02-09
[ [ "Alfaro", "A.", "" ], [ "Guerrero", "L. X. Gutiérrez", "" ], [ "Albino", "L.", "" ], [ "Raya", "A.", "" ] ]
In this study, we present a perturbative analysis of the three-gluon vertex for a kinematical symmetric configuration in dimension $n=4-2\epsilon$ and different covariant gauges.Our study can describe the form factors of the three gluon vertex in a wide range of momentum. We employ a momentum subtraction (MOM) scheme t...
hep-ph/9506340
Hai-Yang Cheng
Hai-Yang Cheng
Nonfactorizable Corrections to Hadronic Weak Decays of Heavy Mesons
Latex and Worldsci.sty, 6 pages, invited talk presented at The International Symposium on Particle Theory and Phenomenology, Iowa State University, May 22-24, 1995
null
null
IP-ASTP-14-95
hep-ph
null
Status of nonfactorizable effects in exclusive hadronic weak decays of $D$ and $B$ mesons is reviewed.
[ { "created": "Fri, 16 Jun 1995 01:48:24 GMT", "version": "v1" } ]
2007-05-23
[ [ "Cheng", "Hai-Yang", "" ] ]
Status of nonfactorizable effects in exclusive hadronic weak decays of $D$ and $B$ mesons is reviewed.