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0906.4335
Urs Wiedemann A
Svend Domdey, Hans-Jurgen Pirner, Urs Achim Wiedemann
Testing the Scale Dependence of the Scale Factor in Double Dijet Production at the LHC
null
Eur.Phys.J.C65:153-162,2010
10.1140/epjc/s10052-009-1198-5
CERN-PH-TH/2009-059
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The scale factor is the effective cross section used to characterize the measured rate of inclusive double dijet production in high energy hadron collisions. It is sensitive to the two-parton distributions in the hadronic projectile. In principle, the scale factor depends on the center of mass energy and on the minim...
[ { "created": "Tue, 23 Jun 2009 20:31:09 GMT", "version": "v1" } ]
2010-01-06
[ [ "Domdey", "Svend", "" ], [ "Pirner", "Hans-Jurgen", "" ], [ "Wiedemann", "Urs Achim", "" ] ]
The scale factor is the effective cross section used to characterize the measured rate of inclusive double dijet production in high energy hadron collisions. It is sensitive to the two-parton distributions in the hadronic projectile. In principle, the scale factor depends on the center of mass energy and on the minimal...
hep-ph/9408255
null
Kari Enqvist, A.I. Rez and V.V. Semikoz
Dirac Neutrinos and Primordial Magnetic Fields
17 pages, HU-TFT-94-26
Nucl.Phys.B436:49-64,1995
10.1016/0550-3213(94)00506-A
null
hep-ph
null
We consider random primordial magnetic fields and discuss their dissipation, coherence length $L_0$, scaling behaviour and constraints implied by the primoridal nucleosynthesis. Such magnetic fields could excite the right-helicity states of Dirac neutrinos, with adverse consequences for nucleosynthesis. We present so...
[ { "created": "Tue, 9 Aug 1994 10:45:28 GMT", "version": "v1" } ]
2011-07-19
[ [ "Enqvist", "Kari", "" ], [ "Rez", "A. I.", "" ], [ "Semikoz", "V. V.", "" ] ]
We consider random primordial magnetic fields and discuss their dissipation, coherence length $L_0$, scaling behaviour and constraints implied by the primoridal nucleosynthesis. Such magnetic fields could excite the right-helicity states of Dirac neutrinos, with adverse consequences for nucleosynthesis. We present solu...
hep-ph/0512194
Sean Fleming
Sean Fleming (University of Arizona) Adam K. Leibovich (University of Pittsburgh) Thomas Mehen (Duke University)
J/psi Photo-production at Large z in Soft Collinear Effective Theory
12 Pages, 3 figures. Presented at the Ringberg Workshop: New Trends in HERA Physics 2005
null
10.1142/9789812773524_0022
null
hep-ph
null
One of the outstanding problems in J/\psi physics is a systematic understanding of the differential photo-production cross section dsigma/dz(gamma + p -> J/psi + X), where z= E_psi/E_gamma in the proton rest frame. The theoretical prediction based on the non-relativistic QCD (NRQCD) factorization formalism has a colo...
[ { "created": "Thu, 15 Dec 2005 05:18:51 GMT", "version": "v1" } ]
2017-08-23
[ [ "Fleming", "Sean", "", "University of Arizona" ], [ "Leibovich", "Adam K.", "", "University of\n Pittsburgh" ], [ "Mehen", "Thomas", "", "Duke University" ] ]
One of the outstanding problems in J/\psi physics is a systematic understanding of the differential photo-production cross section dsigma/dz(gamma + p -> J/psi + X), where z= E_psi/E_gamma in the proton rest frame. The theoretical prediction based on the non-relativistic QCD (NRQCD) factorization formalism has a color-...
1004.4117
Guido Bell
G. Bell, J.H. Kuhn and J. Rittinger
Electroweak Sudakov Logarithms and Real Gauge-Boson Radiation in the TeV Region
20 pages, 4 figures
Eur.Phys.J.C70:659-671,2010
10.1140/epjc/s10052-010-1489-x
TTP10-22
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Electroweak radiative corrections give rise to large negative, double-logarithmically enhanced corrections in the TeV region. These are partly compensated by real radiation and, moreover, affected by selecting isospin-noninvariant external states. We investigate the impact of real gauge boson radiation more quantitat...
[ { "created": "Fri, 23 Apr 2010 12:39:17 GMT", "version": "v1" } ]
2010-12-15
[ [ "Bell", "G.", "" ], [ "Kuhn", "J. H.", "" ], [ "Rittinger", "J.", "" ] ]
Electroweak radiative corrections give rise to large negative, double-logarithmically enhanced corrections in the TeV region. These are partly compensated by real radiation and, moreover, affected by selecting isospin-noninvariant external states. We investigate the impact of real gauge boson radiation more quantitativ...
2107.01864
Yan-Qing Ma
Xiao Liu, Yan-Qing Ma
Multiloop corrections for collider processes using auxiliary mass flow
7 pages, 4 figures, published version
Phys.Rev.D 105 (2022) 5, L051503
10.1103/PhysRevD.105.L051503
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
With a key improvement, the auxiliary mass flow method is now able to compute Feynman integrals encountered in cutting-edge collider processes. We have successfully applied it to compute some integrals involved in two-loop electroweak corrections to $e^+e^-\to HZ$, two-loop QCD corrections to $3j$, $W/Z/H+2j$, $t\bar...
[ { "created": "Mon, 5 Jul 2021 08:34:32 GMT", "version": "v1" }, { "created": "Tue, 15 Mar 2022 11:57:40 GMT", "version": "v2" } ]
2022-03-16
[ [ "Liu", "Xiao", "" ], [ "Ma", "Yan-Qing", "" ] ]
With a key improvement, the auxiliary mass flow method is now able to compute Feynman integrals encountered in cutting-edge collider processes. We have successfully applied it to compute some integrals involved in two-loop electroweak corrections to $e^+e^-\to HZ$, two-loop QCD corrections to $3j$, $W/Z/H+2j$, $t\bar{t...
2105.03218
Nicolas Kovensky
Nicolas Kovensky and Andreas Schmitt
Isospin asymmetry in holographic baryonic matter
53 pages, 8 figures, v2: minor improvements in the text, format adapted to SciPost Physics; v3: typos in Eqs.(20) and (30c) corrected
SciPost Phys. 11, 029 (2021)
10.21468/SciPostPhys.11.2.029
null
hep-ph hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study baryonic matter with isospin asymmetry, including fully dynamically its interplay with pion condensation. To this end, we employ the holographic Witten-Sakai-Sugimoto model and the so-called homogeneous ansatz for the gauge fields in the bulk to describe baryonic matter. Within the confined geometry and rest...
[ { "created": "Fri, 7 May 2021 12:44:59 GMT", "version": "v1" }, { "created": "Mon, 12 Jul 2021 16:31:03 GMT", "version": "v2" }, { "created": "Mon, 28 Feb 2022 16:36:07 GMT", "version": "v3" } ]
2022-03-01
[ [ "Kovensky", "Nicolas", "" ], [ "Schmitt", "Andreas", "" ] ]
We study baryonic matter with isospin asymmetry, including fully dynamically its interplay with pion condensation. To this end, we employ the holographic Witten-Sakai-Sugimoto model and the so-called homogeneous ansatz for the gauge fields in the bulk to describe baryonic matter. Within the confined geometry and restri...
0803.1940
Christof Hendlmeier
Christof Hendlmeier, Andreas Schafer, Marco Stratmann
Next-to-leading order QCD corrections to spin-dependent hadron-pair photoproduction
9 pages, 2 eps figures
Eur.Phys.J.C55:597-605,2008
10.1140/epjc/s10052-008-0626-2
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We compute the next-to-leading order QCD corrections to the ``direct'' part of the spin-dependent cross section for hadron-pair photoproduction. The calculation is performed using largely analytical methods. We present a brief phenomenological study of our results focussing on the $K$-factors and scale dependence of ...
[ { "created": "Thu, 13 Mar 2008 10:29:50 GMT", "version": "v1" } ]
2008-11-26
[ [ "Hendlmeier", "Christof", "" ], [ "Schafer", "Andreas", "" ], [ "Stratmann", "Marco", "" ] ]
We compute the next-to-leading order QCD corrections to the ``direct'' part of the spin-dependent cross section for hadron-pair photoproduction. The calculation is performed using largely analytical methods. We present a brief phenomenological study of our results focussing on the $K$-factors and scale dependence of th...
0902.0418
Masato Arai
Masato Arai, Nobuchika Okada, Karel Smolek
Effects of unparticle on top spin correlation at the Large Hadron Collider
29 pages, 1 table, 12 figures, 2 figures added, typos in captions corrected, version accepted for publication in PRD
Phys.Rev.D79:074019,2009
10.1103/PhysRevD.79.074019
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study effects of the scale invariant hidden sector, unparticle, proposed by Georgi, on top spin correlation at the Large Hadron Collider. Assuming no flavor changing interaction between the unparticles and the Standard Model particles, there arises the top-antitop quark pair production process through virtual unpa...
[ { "created": "Tue, 3 Feb 2009 02:03:35 GMT", "version": "v1" }, { "created": "Mon, 30 Mar 2009 04:38:15 GMT", "version": "v2" } ]
2014-11-18
[ [ "Arai", "Masato", "" ], [ "Okada", "Nobuchika", "" ], [ "Smolek", "Karel", "" ] ]
We study effects of the scale invariant hidden sector, unparticle, proposed by Georgi, on top spin correlation at the Large Hadron Collider. Assuming no flavor changing interaction between the unparticles and the Standard Model particles, there arises the top-antitop quark pair production process through virtual unpart...
2003.13645
V. Sreekanth
Lakshmi J. Naik, V. Sreekanth, Manu Kurian and Vinod Chandra
Thermal dilepton production in collisional hot QCD medium in the presence of chromo-turbulent fields
13 pages, 8 figures
J.Phys.G 49 (2022) 7, 075103
10.1088/1361-6471/ac65a5
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The effects of collisional processes in the hot QCD medium to thermal dilepton production from $q\overline{q}$ annihilation in relativistic heavy-ion collisions have been investigated. The non-equilibrium corrections to the momentum distribution function have been estimated within the framework of ensemble-averaged d...
[ { "created": "Mon, 30 Mar 2020 17:27:58 GMT", "version": "v1" }, { "created": "Thu, 1 Sep 2022 17:23:55 GMT", "version": "v2" } ]
2022-09-02
[ [ "Naik", "Lakshmi J.", "" ], [ "Sreekanth", "V.", "" ], [ "Kurian", "Manu", "" ], [ "Chandra", "Vinod", "" ] ]
The effects of collisional processes in the hot QCD medium to thermal dilepton production from $q\overline{q}$ annihilation in relativistic heavy-ion collisions have been investigated. The non-equilibrium corrections to the momentum distribution function have been estimated within the framework of ensemble-averaged dif...
hep-ph/0004055
Hitoshi Yamamoto
C. S. Kim (Yonsei Univeristy), H. Yamamoto (The University of Hawaii)
Is Cabibbo-Kobayasi-Maskawa Matrix Unitary?
8 pages, 1 figure
null
10.1142/9789812791870_0012
null
hep-ph
null
First, we give summary of the present values of CKM matrix elements. Then, we discuss whether CKM matrix is unitary or not, and how we can find out if it is not unitary.
[ { "created": "Thu, 6 Apr 2000 14:11:09 GMT", "version": "v1" } ]
2016-11-23
[ [ "Kim", "C. S.", "", "Yonsei Univeristy" ], [ "Yamamoto", "H.", "", "The University of Hawaii" ] ]
First, we give summary of the present values of CKM matrix elements. Then, we discuss whether CKM matrix is unitary or not, and how we can find out if it is not unitary.
1707.09967
Daniel G. Figueroa
Daniel G. Figueroa, Mikhail Shaposhnikov
Anomalous non-conservation of fermion/chiral number in Abelian gauge theories at finite temperature
Version matching publication, former Section V on 'Dynamics of chiral charge' removed, and erratum appended at the end in light of the results obtained in 1904.11892 [hep-th]
null
10.1007/JHEP04(2018)026
CERN-TH-2017-172
hep-ph astro-ph.CO hep-lat hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the non-conservation of fermion number (or chirality breaking, depending on the fermionic charge assignment) in Abelian gauge theories at finite temperature. We study different mechanisms of fermionic charge disappearance in the high temperature plasma, using both analytical estimates and real-time classic...
[ { "created": "Mon, 31 Jul 2017 17:20:29 GMT", "version": "v1" }, { "created": "Mon, 17 Aug 2020 09:09:09 GMT", "version": "v2" } ]
2020-08-18
[ [ "Figueroa", "Daniel G.", "" ], [ "Shaposhnikov", "Mikhail", "" ] ]
We discuss the non-conservation of fermion number (or chirality breaking, depending on the fermionic charge assignment) in Abelian gauge theories at finite temperature. We study different mechanisms of fermionic charge disappearance in the high temperature plasma, using both analytical estimates and real-time classical...
1101.4277
Massimo Mannarelli
Roberto Anglani, Massimo Mannarelli and Marco Ruggieri
Collective modes in the color flavor locked phase
21 pages, 10 figures, minor corrections, references added, almost matches published version
New J. Phys.13:055002, 2011
10.1088/1367-2630/13/5/055002
null
hep-ph astro-ph.HE cond-mat.supr-con
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the low energy effective action for the collective modes of the color flavor locked phase of QCD. This phase of matter has long been known to be a superfluid because by picking a phase its order parameter breaks the quark-number $U(1)_B$ symmetry spontaneously. We consider the modes describing fluctuations i...
[ { "created": "Sat, 22 Jan 2011 10:52:01 GMT", "version": "v1" }, { "created": "Wed, 18 May 2011 07:07:40 GMT", "version": "v2" } ]
2015-03-17
[ [ "Anglani", "Roberto", "" ], [ "Mannarelli", "Massimo", "" ], [ "Ruggieri", "Marco", "" ] ]
We study the low energy effective action for the collective modes of the color flavor locked phase of QCD. This phase of matter has long been known to be a superfluid because by picking a phase its order parameter breaks the quark-number $U(1)_B$ symmetry spontaneously. We consider the modes describing fluctuations in ...
hep-ph/9909415
Masaki Yoshimura
Kiko Fukuura, Takahiro Miura, Eiichi Takasugi and Masaki Yoshimura
Large CP Violation, Large Mixings of Neutrinos and Democratic-type Neutrino Mass Matrix
LaTeX, 22pages, corrected some terminologies, reference added
Phys.Rev. D61 (2000) 073002
10.1103/PhysRevD.61.073002
OU-HET 326
hep-ph
null
We propose a democratic-type neutrino mass matrix based on $Z_3$ symmetry. This mass matrix predicts the CP violation phase, $\delta=\pi/2$, and the mixing angle between the mass eigenstates $\nu_2$ and $\nu_3$, $\sin^2 \theta_{23}= \cos^2 \theta_{23}=1/2$ which is essential for the large atmospheric neutrino mixing,...
[ { "created": "Fri, 17 Sep 1999 09:46:20 GMT", "version": "v1" }, { "created": "Mon, 20 Sep 1999 05:37:56 GMT", "version": "v2" }, { "created": "Mon, 15 Nov 1999 05:24:46 GMT", "version": "v3" } ]
2009-10-31
[ [ "Fukuura", "Kiko", "" ], [ "Miura", "Takahiro", "" ], [ "Takasugi", "Eiichi", "" ], [ "Yoshimura", "Masaki", "" ] ]
We propose a democratic-type neutrino mass matrix based on $Z_3$ symmetry. This mass matrix predicts the CP violation phase, $\delta=\pi/2$, and the mixing angle between the mass eigenstates $\nu_2$ and $\nu_3$, $\sin^2 \theta_{23}= \cos^2 \theta_{23}=1/2$ which is essential for the large atmospheric neutrino mixing, b...
1906.10912
Enrique Ruiz Arriola
Enrique Ruiz Arriola, Jacobo Ruiz de Elvira
Coarse graining hadronic scattering
11 pages, 6 figures. Proceedings of the 9th Chiral Dynamics International Workshop, Durham, NC, USA, 17-21 September, 2018
null
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show that it makes sense to coarse grain hadronic interactions such as $\pi\pi$ and $\pi N$ reactions following previous work on NN scattering. Moreover, if the interaction is taken to be given by chiral dynamics at long distances above a given value $r > r_c$ larger than the elementary radii of the interaction ha...
[ { "created": "Wed, 26 Jun 2019 08:46:37 GMT", "version": "v1" } ]
2019-06-27
[ [ "Arriola", "Enrique Ruiz", "" ], [ "de Elvira", "Jacobo Ruiz", "" ] ]
We show that it makes sense to coarse grain hadronic interactions such as $\pi\pi$ and $\pi N$ reactions following previous work on NN scattering. Moreover, if the interaction is taken to be given by chiral dynamics at long distances above a given value $r > r_c$ larger than the elementary radii of the interaction hadr...
hep-ph/9805315
Richard D. Ball
Richard D. Ball and Stefano Forte
Corrections at Small x
5 pages which include 11 figures
null
null
Edinburgh 98/6, DFTT 22/98
hep-ph
null
We show that the all order summation of small x logarithms cannot be included in the Q^2 evolution of structure functions because the NLLx corrections overwhelm the LLx contribution.
[ { "created": "Wed, 13 May 1998 18:47:23 GMT", "version": "v1" } ]
2007-05-23
[ [ "Ball", "Richard D.", "" ], [ "Forte", "Stefano", "" ] ]
We show that the all order summation of small x logarithms cannot be included in the Q^2 evolution of structure functions because the NLLx corrections overwhelm the LLx contribution.
hep-ph/9711472
Toni Coarasa
J.A. Coarasa, David Garcia, Jaume Guasch, Ricardo A. Jimenez, Joan Sola
Heavy charged Higgs boson decaying into top quark in the MSSM
10 pages, LaTeX, 5 figs included as a separate file, full postscript version available at ftp://ftp.ifae.es/preprint/ft/uabft433.ps
Phys.Lett.B425:329-336,1998
10.1016/S0370-2693(98)00255-X
UAB-FT-433
hep-ph
null
Observing a heavy charged Higgs boson produced in the near future at the Tevatron or at the LHC would be instant evidence of physics beyond the Standard Model. Whether such a Higgs boson would be supersymmetric or not it could only be decided after accurate prediction of its properties. Here we compute the decay widt...
[ { "created": "Tue, 25 Nov 1997 21:32:14 GMT", "version": "v1" } ]
2010-01-28
[ [ "Coarasa", "J. A.", "" ], [ "Garcia", "David", "" ], [ "Guasch", "Jaume", "" ], [ "Jimenez", "Ricardo A.", "" ], [ "Sola", "Joan", "" ] ]
Observing a heavy charged Higgs boson produced in the near future at the Tevatron or at the LHC would be instant evidence of physics beyond the Standard Model. Whether such a Higgs boson would be supersymmetric or not it could only be decided after accurate prediction of its properties. Here we compute the decay width ...
2002.10894
Bernd Kniehl
Bernd A. Kniehl, Oleg L. Veretin
Bilinear quark operators in the RI/SMOM scheme at three loops
9 pages, 1 figure, minor changes, matches journal version
Phys. Lett. B 804 (2020) 135398 (5 pages)
10.1016/j.physletb.2020.135398
DESY 20-030
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the renormalization of the matrix elements of the bilinear quark operators $\bar{\psi}\psi$, $\bar{\psi}\gamma_\mu\psi$, and $\bar{\psi}\sigma_{\mu\nu}\psi$ at next-to-next-to-next-to-leading order in QCD perturbation theory at the symmetric subtraction point. This allows us to obtain conversion factors b...
[ { "created": "Tue, 25 Feb 2020 14:34:55 GMT", "version": "v1" }, { "created": "Mon, 30 Mar 2020 16:04:38 GMT", "version": "v2" } ]
2020-03-31
[ [ "Kniehl", "Bernd A.", "" ], [ "Veretin", "Oleg L.", "" ] ]
We consider the renormalization of the matrix elements of the bilinear quark operators $\bar{\psi}\psi$, $\bar{\psi}\gamma_\mu\psi$, and $\bar{\psi}\sigma_{\mu\nu}\psi$ at next-to-next-to-next-to-leading order in QCD perturbation theory at the symmetric subtraction point. This allows us to obtain conversion factors bet...
2201.02618
Daniel Simons
Daniel Simons, Erik Gustafson, Yannick Meurice
Variations to the z-Expansion of the Form Factor Describing the Decay of B Mesons
null
null
null
FERMILAB-CONF-21-734-T
hep-ph
http://creativecommons.org/licenses/by/4.0/
We examine the decay rate of the particle decay $B^0 \rightarrow D^- \ell^+ \nu_{\ell}$ using data collected from the Belle Collaboration. We studied three parameterizations of the form factor which describe the differential decay rate, the Caprini, Lellouch, and Neubert (CLN) parametrization, the Boyd, Grinstein, an...
[ { "created": "Fri, 7 Jan 2022 00:07:53 GMT", "version": "v1" } ]
2022-01-11
[ [ "Simons", "Daniel", "" ], [ "Gustafson", "Erik", "" ], [ "Meurice", "Yannick", "" ] ]
We examine the decay rate of the particle decay $B^0 \rightarrow D^- \ell^+ \nu_{\ell}$ using data collected from the Belle Collaboration. We studied three parameterizations of the form factor which describe the differential decay rate, the Caprini, Lellouch, and Neubert (CLN) parametrization, the Boyd, Grinstein, and ...
0807.2986
Zhe Xu
Zhe Xu, Carsten Greiner and Horst Stoecker
QCD plasma thermalization, collective flow and extraction of shear viscosity
8 pages, 5 figures, Plenary talk at 20th International Conference on Ultra-Relativistic Nucleus Nucleus Collisions (Quark Matter 2008), Jaipur, India, 4-10 Feb. 2008
J.Phys.G35:104016,2008
10.1088/0954-3899/35/10/104016
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Fast thermalization and elliptic flow of QCD matter found at the Relativistic Heavy Ion Collider (RHIC) are understood as the consequence of perturbative QCD (pQCD) interactions within a (3+1) dimensional parton cascade. The main contributions stem from pQCD-inspired bremsstrahlung. We extract the shear viscosity to ...
[ { "created": "Fri, 18 Jul 2008 14:54:45 GMT", "version": "v1" } ]
2008-11-26
[ [ "Xu", "Zhe", "" ], [ "Greiner", "Carsten", "" ], [ "Stoecker", "Horst", "" ] ]
Fast thermalization and elliptic flow of QCD matter found at the Relativistic Heavy Ion Collider (RHIC) are understood as the consequence of perturbative QCD (pQCD) interactions within a (3+1) dimensional parton cascade. The main contributions stem from pQCD-inspired bremsstrahlung. We extract the shear viscosity to en...
2005.05488
Roman Zhokhov
T. G. Khunjua, K. G. Klimenko, R. N. Zhokhov
Electrical neutrality and $\beta$-equilibrium conditions in dense quark matter: generation of charged pion condensation by chiral imbalance
16 pages, 14 figures
null
10.1140/epjc/s10052-020-08502-w
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The phase diagram of dense quark matter with chiral imbalance is considered with the conditions of electric neutrality and $\beta$-equilibrium. It has been shown recently that chiral imbalance can generate charged pion condensation in dense quark matter, so it was interesting to verify that this phenomenon takes plac...
[ { "created": "Mon, 11 May 2020 23:45:18 GMT", "version": "v1" } ]
2020-12-02
[ [ "Khunjua", "T. G.", "" ], [ "Klimenko", "K. G.", "" ], [ "Zhokhov", "R. N.", "" ] ]
The phase diagram of dense quark matter with chiral imbalance is considered with the conditions of electric neutrality and $\beta$-equilibrium. It has been shown recently that chiral imbalance can generate charged pion condensation in dense quark matter, so it was interesting to verify that this phenomenon takes place ...
hep-ph/9308253
Alexander Bochkarev
A. Bochkarev
On the relation between Euclidean and real time calculations of Green functions at finite temperature
10 pages, 2 figs not included, Phys.Rev.D (in press), PITT-93-07
Phys.Rev.D48:2382-2384,1993
10.1103/PhysRevD.48.R2382
null
hep-ph
null
We find a relation between the semiclassical approximation of the temperature (Matsubara) 2-point correlator and the corresponding classical Green function in real time at finite temperature. The anharmonic oscillator at finite temperature is used to illustrate our statement, which is however of rather general origin...
[ { "created": "Tue, 10 Aug 1993 19:10:53 GMT", "version": "v1" } ]
2009-12-30
[ [ "Bochkarev", "A.", "" ] ]
We find a relation between the semiclassical approximation of the temperature (Matsubara) 2-point correlator and the corresponding classical Green function in real time at finite temperature. The anharmonic oscillator at finite temperature is used to illustrate our statement, which is however of rather general origin.
1706.05521
Seung-il Nam
Seung-il Nam
Photo- and electroproduction of $\Lambda(1405)$ via $\gamma^{(*)}p\to K^+\pi^+\Sigma^-$
11 pages, 10 figures, accepted for publication via PRD
null
10.1103/PhysRevD.96.076021
PKNU-NuHaTh-2017-03
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, we perform a \textit{toy-model} analysis for the unpolarized photo- and electroproduction of $\Lambda(1405)\equiv\Lambda^*$ via $\gamma^{(*)}p\to K^+\pi^+\Sigma^-$ by employing the effective Lagrangian approach at the tree level only. We consider that $\Lambda^*$ consists of the high-mass ($H$) and low-...
[ { "created": "Sat, 17 Jun 2017 12:11:31 GMT", "version": "v1" }, { "created": "Wed, 11 Oct 2017 17:45:25 GMT", "version": "v2" } ]
2017-11-22
[ [ "Nam", "Seung-il", "" ] ]
In this work, we perform a \textit{toy-model} analysis for the unpolarized photo- and electroproduction of $\Lambda(1405)\equiv\Lambda^*$ via $\gamma^{(*)}p\to K^+\pi^+\Sigma^-$ by employing the effective Lagrangian approach at the tree level only. We consider that $\Lambda^*$ consists of the high-mass ($H$) and low-ma...
0908.0139
Alexey Popov
Alexey V. Popov
Symplectic approach to lightcone QCD
24 pages, new title; final version
Nucl. Phys. A836:136-158, 2010
10.1016/j.nuclphysa.2010.01.163
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We develop a symplectic method of quantization of lightcone QCD. We find that boundary gauge fields are crucial for a consistent and complete quantization. By applying the symplectic Faddeev-Jackiw method, we very carefully remove unphysical degrees of freedom and obtain the true phase space and the complete Hamilton...
[ { "created": "Sun, 2 Aug 2009 17:21:17 GMT", "version": "v1" }, { "created": "Tue, 3 Nov 2009 08:54:33 GMT", "version": "v2" }, { "created": "Sat, 20 Mar 2010 15:05:17 GMT", "version": "v3" } ]
2010-04-14
[ [ "Popov", "Alexey V.", "" ] ]
We develop a symplectic method of quantization of lightcone QCD. We find that boundary gauge fields are crucial for a consistent and complete quantization. By applying the symplectic Faddeev-Jackiw method, we very carefully remove unphysical degrees of freedom and obtain the true phase space and the complete Hamiltonia...
hep-ph/0610145
Xavier Garcia i Tormo
Xavier Garcia i Tormo
Applications of effective field theories to the strong interactions of heavy quarks
109 pages, 38 figures. Ph.D. thesis, includes a summary in Catalan
null
null
null
hep-ph
null
We apply effective field theory techniques to study several heavy quark systems. The topics analysed include the singlet static QCD potential, anomalous dimensions in SCET and a comprehensive study of semi-inclusive radiative heavy quarkonium decays.
[ { "created": "Wed, 11 Oct 2006 21:48:55 GMT", "version": "v1" } ]
2007-05-23
[ [ "Tormo", "Xavier Garcia i", "" ] ]
We apply effective field theory techniques to study several heavy quark systems. The topics analysed include the singlet static QCD potential, anomalous dimensions in SCET and a comprehensive study of semi-inclusive radiative heavy quarkonium decays.
1409.5244
Krzysztof M. Graczyk
Krzysztof M. Graczyk and Cezary Juszczak
Applications of Neural Networks in Hadron Physics
16 pages, 9 figures, Invited contribution to the Journal of Physics G: Nuclear and Particle Physics focus section entitled "Enhancing the interaction between nuclear experiment and theory through information and statistics", in press
J.Phys. G: Nucl. Phys. 42 034019 (2015)
10.1088/0954-3899/42/3/034019
null
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Bayesian approach for the feed-forward neural networks is reviewed. Its potential for usage in hadron physics is discussed. As an example of the application the study of the the two-photon exchange effect is presented. We focus on the model comparison, the estimation of the systematic uncertainties due to the cho...
[ { "created": "Thu, 18 Sep 2014 10:16:53 GMT", "version": "v1" } ]
2015-02-10
[ [ "Graczyk", "Krzysztof M.", "" ], [ "Juszczak", "Cezary", "" ] ]
The Bayesian approach for the feed-forward neural networks is reviewed. Its potential for usage in hadron physics is discussed. As an example of the application the study of the the two-photon exchange effect is presented. We focus on the model comparison, the estimation of the systematic uncertainties due to the choic...
2006.13137
Naoya Kitajima
Naoya Kitajima, Fuminobu Takahashi
Primordial Black Holes from QCD Axion Bubbles
22 pages, 6 figures
null
10.1088/1475-7516/2020/11/060
TU-1103, IPMU20-0066
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a scenario in which a strong Peccei-Quinn (PQ) symmetry breaking in the early universe results in large inhomogeneities of the initial QCD axion field value, leading to the formation of very dense axion bubbles. Some of the axion bubbles subsequently collapse into primordial black holes (PBHs). The spatial...
[ { "created": "Tue, 23 Jun 2020 16:32:34 GMT", "version": "v1" } ]
2020-12-09
[ [ "Kitajima", "Naoya", "" ], [ "Takahashi", "Fuminobu", "" ] ]
We propose a scenario in which a strong Peccei-Quinn (PQ) symmetry breaking in the early universe results in large inhomogeneities of the initial QCD axion field value, leading to the formation of very dense axion bubbles. Some of the axion bubbles subsequently collapse into primordial black holes (PBHs). The spatially...
1606.00378
Arnab Dasgupta
Debasish Borah and Arnab Dasgupta
Charged Lepton Flavour Violation and Neutrinoless Double Beta Decay in Left-Right Symmetric Models with Type I+II Seesaw
23 pages and 21 figures. minor revision, to appear in JHEP. arXiv admin note: text overlap with arXiv:1509.01800
null
10.1007/JHEP07(2016)022
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the new physics contributions to neutrinoless double beta decay ($0\nu\beta \beta$) half-life and lepton flavour violation (LFV) amplitude within the framework of the minimal left-right symmetric model (MLRSM). Considering all possible new physics contributions to $0\nu\beta \beta$ and charged lepton flavour...
[ { "created": "Wed, 1 Jun 2016 18:07:58 GMT", "version": "v1" }, { "created": "Mon, 20 Jun 2016 11:23:24 GMT", "version": "v2" } ]
2016-08-03
[ [ "Borah", "Debasish", "" ], [ "Dasgupta", "Arnab", "" ] ]
We study the new physics contributions to neutrinoless double beta decay ($0\nu\beta \beta$) half-life and lepton flavour violation (LFV) amplitude within the framework of the minimal left-right symmetric model (MLRSM). Considering all possible new physics contributions to $0\nu\beta \beta$ and charged lepton flavour v...
1103.5061
Gregory Peim
Sujeet Akula, Daniel Feldman, Zuowei Liu, Pran Nath, and Gregory Peim
New Constraints on Dark Matter from CMS and ATLAS Data
18 pages, 5 figures, text expanded and updated
Mod.Phys.Lett.A26:1521-1535,2011
10.1142/S0217732311036292
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Constraints on dark matter from the first CMS and ATLAS SUSY searches are investigated. It is shown that within the minimal supergravity model, the early search for supersymmetry at the LHC has depleted a large portion of the signature space in dark matter direct detection experiments. In particular, the prospects fo...
[ { "created": "Fri, 25 Mar 2011 18:51:10 GMT", "version": "v1" }, { "created": "Wed, 27 Apr 2011 20:40:30 GMT", "version": "v2" } ]
2011-07-19
[ [ "Akula", "Sujeet", "" ], [ "Feldman", "Daniel", "" ], [ "Liu", "Zuowei", "" ], [ "Nath", "Pran", "" ], [ "Peim", "Gregory", "" ] ]
Constraints on dark matter from the first CMS and ATLAS SUSY searches are investigated. It is shown that within the minimal supergravity model, the early search for supersymmetry at the LHC has depleted a large portion of the signature space in dark matter direct detection experiments. In particular, the prospects for ...
1802.05168
Stefan Leupold
M{\aa}ns Holmberg and Stefan Leupold (Uppsala U.)
The relativistic chiral Lagrangian for decuplet and octet baryons at next-to-leading order
12 pages
null
10.1140/epja/i2018-12533-3
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A complete and minimal relativistic Lagrangian is constructed at next-to-leading order for SU(3) chiral perturbation theory in the presence of baryon octet and baryon decuplet states. The Lagrangian has 13 terms for the pure decuplet sector, 6 terms for the transition sector from baryon octet to decuplet and (as alre...
[ { "created": "Wed, 14 Feb 2018 15:49:03 GMT", "version": "v1" } ]
2018-08-01
[ [ "Holmberg", "Måns", "", "Uppsala U." ], [ "Leupold", "Stefan", "", "Uppsala U." ] ]
A complete and minimal relativistic Lagrangian is constructed at next-to-leading order for SU(3) chiral perturbation theory in the presence of baryon octet and baryon decuplet states. The Lagrangian has 13 terms for the pure decuplet sector, 6 terms for the transition sector from baryon octet to decuplet and (as alread...
2211.12115
Shrihari Gopalakrishna
Shrihari Gopalakrishna and Rakesh Tibrewala
Effective Theory for Baryogenesis with a Majorana Fermion Pair Coupled to Quarks
28 pages, 4 figures; v2: published version; added appendix on Fierz rearrangement (with typos corrected); added BAU section with Boltzmann equations; updated n-nbar oscillation section; other updates to improve readability
null
10.1103/PhysRevD.107.115029
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
With a goal toward explaining the observed baryon asymmetry of the Universe, we extend the standard model (SM) by adding a vector-vector dimension-six effective operator coupling a new Dirac fermion $\chi$, uncharged under the SM gauge symmetries but charged under baryon number, to a quark-like up-type fermion and tw...
[ { "created": "Tue, 22 Nov 2022 09:31:11 GMT", "version": "v1" }, { "created": "Mon, 21 Aug 2023 05:55:01 GMT", "version": "v2" } ]
2023-08-22
[ [ "Gopalakrishna", "Shrihari", "" ], [ "Tibrewala", "Rakesh", "" ] ]
With a goal toward explaining the observed baryon asymmetry of the Universe, we extend the standard model (SM) by adding a vector-vector dimension-six effective operator coupling a new Dirac fermion $\chi$, uncharged under the SM gauge symmetries but charged under baryon number, to a quark-like up-type fermion and two ...
hep-ph/9512420
K. V. L. Sarma
K.V.L. Sarma (Tata Institute, Bombay)
Nobel Leptons
12 pages + 2 figures (supplied on request), latex, to appear in Current Science (Indian Academy of Sciences)
null
null
TIFR/TH/95-56, November 1995
hep-ph
null
The 1995 Nobel Prize in Physics is shared equally by the American physicists Frederick J. Reines and Martin L. Perl for their pioneering experimental contributions to lepton physics. Following is a brief account of their discoveries.
[ { "created": "Mon, 25 Dec 1995 19:09:33 GMT", "version": "v1" } ]
2009-09-25
[ [ "Sarma", "K. V. L.", "", "Tata Institute, Bombay" ] ]
The 1995 Nobel Prize in Physics is shared equally by the American physicists Frederick J. Reines and Martin L. Perl for their pioneering experimental contributions to lepton physics. Following is a brief account of their discoveries.
hep-ph/9706464
Leonid Burakovsky
L. Burakovsky, T. Goldman and L.P. Horwitz
New quadratic baryon mass relations
14 pages, LaTeX
Phys.Rev.D56:7124-7132,1997
10.1103/PhysRevD.56.7124
LA-UR-97-2333
hep-ph
null
By assuming the existence of (quasi)-linear baryon Regge trajectories, we derive new quadratic Gell-Mann-Okubo type baryon mass relations. These relations are used to predict the masses of the charmed baryons absent from the Baryon Summary Table so far, in good agreement with the predictions of many other approaches....
[ { "created": "Mon, 23 Jun 1997 17:09:16 GMT", "version": "v1" } ]
2008-11-26
[ [ "Burakovsky", "L.", "" ], [ "Goldman", "T.", "" ], [ "Horwitz", "L. P.", "" ] ]
By assuming the existence of (quasi)-linear baryon Regge trajectories, we derive new quadratic Gell-Mann-Okubo type baryon mass relations. These relations are used to predict the masses of the charmed baryons absent from the Baryon Summary Table so far, in good agreement with the predictions of many other approaches.
hep-ph/9512395
Tomasz Skwarnicki
Tomasz Skwarnicki (Syracuse University)
Decays of b quark
35 pages (LateX), 23 figures (uuencoded postscript) Experimental review of b decays, Lepton-Photon Conference, Beijing, Aug. 95
null
null
HEPSY-95-05
hep-ph
null
Importance of studies of $b$ quark decays and experimental status of various measurements are discussed.
[ { "created": "Thu, 21 Dec 1995 17:23:42 GMT", "version": "v1" } ]
2007-05-23
[ [ "Skwarnicki", "Tomasz", "", "Syracuse University" ] ]
Importance of studies of $b$ quark decays and experimental status of various measurements are discussed.
2305.03749
Jae Hyeok Chang
Jae Hyeok Chang, Reza Ebadi, Xuheng Luo, Erwin H. Tanin
Spectral distortions of astrophysical blackbodies as axion probes
14 pages, 8 figures
null
null
UMD-PP-022-05
hep-ph astro-ph.CO astro-ph.HE astro-ph.SR
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recent studies reveal that more than a dozen of white dwarfs displaying near-perfect blackbody spectra in the optical range have been lurking in the Sloan Digital Sky Survey catalog. We point out that, in a way analogous to the Cosmic Microwave Background, these stars serve as excellent testbeds for new physics. Spec...
[ { "created": "Fri, 5 May 2023 18:00:01 GMT", "version": "v1" } ]
2023-05-09
[ [ "Chang", "Jae Hyeok", "" ], [ "Ebadi", "Reza", "" ], [ "Luo", "Xuheng", "" ], [ "Tanin", "Erwin H.", "" ] ]
Recent studies reveal that more than a dozen of white dwarfs displaying near-perfect blackbody spectra in the optical range have been lurking in the Sloan Digital Sky Survey catalog. We point out that, in a way analogous to the Cosmic Microwave Background, these stars serve as excellent testbeds for new physics. Specif...
hep-ph/9407270
null
Nguyen Ai Viet
Predictions of noncommutative space-time
7 pages, report SU-4240-583 June 1994. Talk given at MRST-94 Meeting: "What Next? Exploring the Future of High-Energy Physics" held at Mc Gill University, Montreal, Quebec, Canada, May 11-13, 1994. Some corrections have been made
null
null
null
hep-ph gr-qc hep-th
null
An unified structure of noncommutative space-time for both gravity and particle physics is presented. This gives possibilities of testing the idea of noncommutative space-time at the currently available energy scale. There are several arguments indicating that noncommutative space-time is visible already at the elect...
[ { "created": "Mon, 11 Jul 1994 18:39:36 GMT", "version": "v1" }, { "created": "Sun, 24 Jul 1994 21:57:39 GMT", "version": "v2" } ]
2008-02-03
[ [ "Viet", "Nguyen Ai", "" ] ]
An unified structure of noncommutative space-time for both gravity and particle physics is presented. This gives possibilities of testing the idea of noncommutative space-time at the currently available energy scale. There are several arguments indicating that noncommutative space-time is visible already at the electro...
1411.2804
Claudio Coriano
Claudio Coriano, Luigi Delle Rose, Matteo Maria Maglio, Mirko Serino
Electroweak Corrections to Photon Scattering, Polarization and Lensing in a Gravitational Background and the Near Horizon Limit
38 pages, 18 figures. Revised final version, accepted on JHEP
JHEP 01 (2015) 091
10.1007/JHEP01(2015)091
null
hep-ph astro-ph.HE hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the semiclassical approach to the lensing of photons in a spherically symmetric gravitational background, starting from Born level and include in our analysis the radiative corrections obtained from the electroweak theory for the graviton/photon/photon vertex. In this approach, the cross section is rel...
[ { "created": "Tue, 11 Nov 2014 13:40:55 GMT", "version": "v1" }, { "created": "Fri, 16 Jan 2015 02:47:16 GMT", "version": "v2" } ]
2021-07-29
[ [ "Coriano", "Claudio", "" ], [ "Rose", "Luigi Delle", "" ], [ "Maglio", "Matteo Maria", "" ], [ "Serino", "Mirko", "" ] ]
We investigate the semiclassical approach to the lensing of photons in a spherically symmetric gravitational background, starting from Born level and include in our analysis the radiative corrections obtained from the electroweak theory for the graviton/photon/photon vertex. In this approach, the cross section is relat...
hep-ph/0301240
Ira Z. Rothstein
Ira Z. Rothstein (Carnegie Mellon Univ.)
Factorization, Power Corrections, and the Pion Form Factor
Published, extended, version
Phys.Rev. D70 (2004) 054024
10.1103/PhysRevD.70.054024
null
hep-ph
null
This letter is an investigation of the pion form factor utilizing recently developed effective field theory techniques. The primary results reported are: Both the transition and electromagnetic form factors are corrected at order $\Lambda/Q$. However, these corrections only arise due to time ordered products which ar...
[ { "created": "Mon, 27 Jan 2003 21:27:01 GMT", "version": "v1" }, { "created": "Thu, 20 Feb 2003 19:56:59 GMT", "version": "v2" }, { "created": "Thu, 5 Aug 2004 20:36:38 GMT", "version": "v3" } ]
2009-11-10
[ [ "Rothstein", "Ira Z.", "", "Carnegie Mellon Univ." ] ]
This letter is an investigation of the pion form factor utilizing recently developed effective field theory techniques. The primary results reported are: Both the transition and electromagnetic form factors are corrected at order $\Lambda/Q$. However, these corrections only arise due to time ordered products which are ...
hep-ph/9309230
Pene
A.Le Yaouanc and O.P\`ene
Semileptonic Decays and CKM Matrix Elements in a TCF
17 pages, LPTHE Orsay-93/33
null
null
null
hep-ph
null
We argue that a Tau-Charm factory (TCF) could improve our knowledge of CKM matrix elements since it is an incomparable tool to check the models and methods applied to extract $V_{bu}$ from $B$ decay partial widths. We report on some recent proposals to improve on parton model. Turning to exclusive decays, we compar...
[ { "created": "Mon, 6 Sep 1993 16:47:50 GMT", "version": "v1" } ]
2007-05-23
[ [ "Yaouanc", "A. Le", "" ], [ "Pène", "O.", "" ] ]
We argue that a Tau-Charm factory (TCF) could improve our knowledge of CKM matrix elements since it is an incomparable tool to check the models and methods applied to extract $V_{bu}$ from $B$ decay partial widths. We report on some recent proposals to improve on parton model. Turning to exclusive decays, we compare th...
hep-ph/0409341
Luc Marleau
Jimmy Fortier and Luc Marleau
On the electromagnetic form factors of the proton from generalized Skyrme models
8 pages, 2 figures, revtex
null
10.1103/PhysRevD.70.114021
null
hep-ph
null
We compare the prediction of Skyrme-like effective Lagrangians with data for electromagnetic form factors of proton and consider the possibility of fixing the parameters of these higher-order Lagrangians. Our results indicate that one or two-parameter models can lead to better agreement with the data but more accurat...
[ { "created": "Wed, 29 Sep 2004 15:00:56 GMT", "version": "v1" }, { "created": "Thu, 30 Sep 2004 11:53:58 GMT", "version": "v2" } ]
2009-11-10
[ [ "Fortier", "Jimmy", "" ], [ "Marleau", "Luc", "" ] ]
We compare the prediction of Skyrme-like effective Lagrangians with data for electromagnetic form factors of proton and consider the possibility of fixing the parameters of these higher-order Lagrangians. Our results indicate that one or two-parameter models can lead to better agreement with the data but more accurate ...
hep-ph/0602242
Howard E. Haber
Howard E. Haber and Deva O'Neil
Basis-independent methods for the two-Higgs-doublet model II. The significance of tan(beta)
56 pages, 5 tables, with Eq. (65) corrected (erratum to appear in Physical Review D)
Phys.Rev. D74 (2006) 015018
10.1103/PhysRevD.74.015018
SCIPP-06/01
hep-ph
null
In the most general two-Higgs-doublet model (2HDM), there is no distinction between the two complex hypercharge-one SU(2) doublet scalar fields, Phi_a (a=1,2). Thus, any two orthonormal linear combinations of these two fields can serve as a basis for the Lagrangian. All physical observables of the model must therefor...
[ { "created": "Tue, 28 Feb 2006 09:22:07 GMT", "version": "v1" }, { "created": "Mon, 5 Jun 2006 09:29:36 GMT", "version": "v2" }, { "created": "Mon, 5 Jun 2006 21:56:40 GMT", "version": "v3" }, { "created": "Fri, 9 Jun 2006 07:00:09 GMT", "version": "v4" }, { "crea...
2009-11-11
[ [ "Haber", "Howard E.", "" ], [ "O'Neil", "Deva", "" ] ]
In the most general two-Higgs-doublet model (2HDM), there is no distinction between the two complex hypercharge-one SU(2) doublet scalar fields, Phi_a (a=1,2). Thus, any two orthonormal linear combinations of these two fields can serve as a basis for the Lagrangian. All physical observables of the model must therefore ...
hep-ph/9508264
Harry Blundell
Harry G. Blundell and Stephen Godfrey (Ottawa-Carleton Institute for Physics)
The $\xi(2220)$ Revistited
Revised version to be published in Phys. Rev. D. Minor changes. Latex file uses revtex version 3 and epsfig, 3 postcript figures are attached. The full postcript version with embedded figures is available at ftp://ftp.physics.carleton.ca/pub/theory/godfrey/ocipc9511.ps.Z
Phys.Rev. D53 (1996) 3700-3711
10.1103/PhysRevD.53.3700
OCIP/C 95-11
hep-ph
null
We calculated the decay widths of the $1^3F_2$ and $1^3F_4$ $s\bar{s}$ mesons and compared them to the measured properties of the $\xi(2220)$ (now known as the $f_4(2220)$). Including previously neglected decay modes we found that the width of the $^3F_2$ state $s\bar{s}$ meson is much larger than previously believed...
[ { "created": "Tue, 8 Aug 1995 17:26:57 GMT", "version": "v1" }, { "created": "Thu, 14 Mar 1996 22:27:29 GMT", "version": "v2" } ]
2009-10-28
[ [ "Blundell", "Harry G.", "", "Ottawa-Carleton Institute for\n Physics" ], [ "Godfrey", "Stephen", "", "Ottawa-Carleton Institute for\n Physics" ] ]
We calculated the decay widths of the $1^3F_2$ and $1^3F_4$ $s\bar{s}$ mesons and compared them to the measured properties of the $\xi(2220)$ (now known as the $f_4(2220)$). Including previously neglected decay modes we found that the width of the $^3F_2$ state $s\bar{s}$ meson is much larger than previously believed m...
1512.06382
Robert Thorne S
R.S. Thorne
PDFs and Top Physics
11 pages, 13 figures, to appear in proceedings of Top 2015 Workshop. Final version. Enlarged figures and minor corrections in text
null
null
LCTS/2015-44
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
I present the results from the recent PDF4LHC study, and the resulting new recommendation for combining PDFs sets for LHC calculations. In order to put this into context I summarise continuing updates in PDFs. This includes improvements and recent updates of particular PDF sets due to theory improvements and a variet...
[ { "created": "Sun, 20 Dec 2015 15:33:24 GMT", "version": "v1" }, { "created": "Tue, 10 May 2016 16:09:24 GMT", "version": "v2" } ]
2016-05-11
[ [ "Thorne", "R. S.", "" ] ]
I present the results from the recent PDF4LHC study, and the resulting new recommendation for combining PDFs sets for LHC calculations. In order to put this into context I summarise continuing updates in PDFs. This includes improvements and recent updates of particular PDF sets due to theory improvements and a variety ...
1612.04202
Guang-You Qin
Lin Chen, Guang-You Qin, Shu-Yi Wei, Bo-Wen Xiao, Han-Zhong Zhang
Dijet Asymmetry in the Resummation Improved Perturbative QCD Approach
5 pages, 4 figures
null
10.1016/j.physletb.2018.06.002
null
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We develop the first systematic theoretical approach to dijet asymmetries in hadron-hadron collisions based on the perturbative QCD (pQCD) expansion and the Sudakov resummation formalism. We find that the pQCD calculation at next-to-leading order is indispensable to describe the experimental data, while the Sudakov r...
[ { "created": "Tue, 13 Dec 2016 14:30:56 GMT", "version": "v1" }, { "created": "Thu, 22 Dec 2016 08:06:48 GMT", "version": "v2" } ]
2018-06-13
[ [ "Chen", "Lin", "" ], [ "Qin", "Guang-You", "" ], [ "Wei", "Shu-Yi", "" ], [ "Xiao", "Bo-Wen", "" ], [ "Zhang", "Han-Zhong", "" ] ]
We develop the first systematic theoretical approach to dijet asymmetries in hadron-hadron collisions based on the perturbative QCD (pQCD) expansion and the Sudakov resummation formalism. We find that the pQCD calculation at next-to-leading order is indispensable to describe the experimental data, while the Sudakov res...
2103.09436
Zhen-Xing Zhao
Zhen-Xing Zhao, Xiao-Yu Sun, Fu-Wei Zhang, Yi-Peng Xing, Ya-Ting Yang
Semi-leptonic form factors of $\Xi_{c}\to\Xi$ in QCD sum rules
18 pages, 7 figures; version accepted by PRD
null
null
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
There exists a significant deviation between the most recent Lattice QCD simulation and experimental measurement by Belle for $\Xi_{c}^{0}\to\Xi^{-}\ell^{+}\nu_{\ell}$. In this work, we investigate the $\Xi_{c}\to\Xi$ form factors in QCD sum rules. To this end, the two-point correlation functions of $\Xi_{c}$ and $\X...
[ { "created": "Wed, 17 Mar 2021 04:43:56 GMT", "version": "v1" }, { "created": "Sat, 2 Dec 2023 05:29:09 GMT", "version": "v2" } ]
2023-12-05
[ [ "Zhao", "Zhen-Xing", "" ], [ "Sun", "Xiao-Yu", "" ], [ "Zhang", "Fu-Wei", "" ], [ "Xing", "Yi-Peng", "" ], [ "Yang", "Ya-Ting", "" ] ]
There exists a significant deviation between the most recent Lattice QCD simulation and experimental measurement by Belle for $\Xi_{c}^{0}\to\Xi^{-}\ell^{+}\nu_{\ell}$. In this work, we investigate the $\Xi_{c}\to\Xi$ form factors in QCD sum rules. To this end, the two-point correlation functions of $\Xi_{c}$ and $\Xi$...
1708.00435
Haolin Li
Chien-Yi Chen, Hao-Lin Li, Michael Ramsey-Musolf
CP-Violation in the Two Higgs Doublet Model: from the LHC to EDMs
21 pages, 34 figures
Phys. Rev. D 97, 015020 (2018)
10.1103/PhysRevD.97.015020
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the prospective sensitivity to CP-violating Two Higgs Doublet Models from the 14 TeV LHC and future electric dipole moment (EDM) experiments. We concentrate on the search for a resonant heavy Higgs that decays to a $Z$ boson and a SM-like Higgs h, leading to the $Z(\ell\ell)h(b\bar{b})$ final state. The pros...
[ { "created": "Tue, 1 Aug 2017 17:50:15 GMT", "version": "v1" }, { "created": "Wed, 27 Sep 2017 23:33:53 GMT", "version": "v2" } ]
2018-02-07
[ [ "Chen", "Chien-Yi", "" ], [ "Li", "Hao-Lin", "" ], [ "Ramsey-Musolf", "Michael", "" ] ]
We study the prospective sensitivity to CP-violating Two Higgs Doublet Models from the 14 TeV LHC and future electric dipole moment (EDM) experiments. We concentrate on the search for a resonant heavy Higgs that decays to a $Z$ boson and a SM-like Higgs h, leading to the $Z(\ell\ell)h(b\bar{b})$ final state. The prospe...
1604.03769
Elena Santopinto
Elena Santopinto and Alessandro Giachino
Compact pentaquark structures
7 pages, 7 figures, Revised version:Section II has been rewritten,Section VI it has been added. In Section VI we compute the partial decay widths for all the predicted pentaquark resonances
Phys. Rev. D 96, 014014 (2017)
10.1103/PhysRevD.96.014014
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the possibility that at least one of the two pentaquark structures recently reported by LHCb can be described as a compact pentaquark state, and we give predictions for new channels that can be studied by the experimentalists if this hypothesis is correct. We use very general arguments dictated by symmetry c...
[ { "created": "Wed, 13 Apr 2016 13:47:11 GMT", "version": "v1" }, { "created": "Thu, 9 Feb 2017 19:17:16 GMT", "version": "v2" } ]
2017-07-26
[ [ "Santopinto", "Elena", "" ], [ "Giachino", "Alessandro", "" ] ]
We study the possibility that at least one of the two pentaquark structures recently reported by LHCb can be described as a compact pentaquark state, and we give predictions for new channels that can be studied by the experimentalists if this hypothesis is correct. We use very general arguments dictated by symmetry con...
1202.3584
Eita Nakamura
Shoji Asai, Eita Nakamura and Satoshi Shirai
Discriminating Minimal SUGRA and Minimal Gauge Mediation Models at the Early LHC
29 pages, 3 figures, captions improved, typos corrected, appendix added, version published in JHEP
null
10.1007/JHEP04(2012)003
UT-12-05
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Among various supersymmetric (SUSY) standard models, the gravity mediation model with a neutralino LSP and the gauge mediation model with a very light gravitino are attractive from the cosmological view point. These models have different scales of SUSY breaking and their underlying physics in high energy is quite dif...
[ { "created": "Thu, 16 Feb 2012 13:14:10 GMT", "version": "v1" }, { "created": "Fri, 9 Mar 2012 12:02:00 GMT", "version": "v2" } ]
2015-06-04
[ [ "Asai", "Shoji", "" ], [ "Nakamura", "Eita", "" ], [ "Shirai", "Satoshi", "" ] ]
Among various supersymmetric (SUSY) standard models, the gravity mediation model with a neutralino LSP and the gauge mediation model with a very light gravitino are attractive from the cosmological view point. These models have different scales of SUSY breaking and their underlying physics in high energy is quite diffe...
1302.1862
Susan Gardner
Susan Gardner, Daheng He
Radiative Beta Decay for Studies of CP Violation
9 pages, 1 figure
null
10.1103/PhysRevD.87.116012
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A triple-product correlation in the radiative \beta-decay rate of neutrons or of nuclei, characterized by the kinematic variable \xi\equiv (\vec{l}_\nu\times\vec{l}_e)\cdot\vec{k}, where, e.g., n(p) \to p(p') + e^-(l_e) + \bar{\nu}_e(l_\nu) + \gamma(k), can be generated by the pseudo-Chern-Simons term found by Harvey...
[ { "created": "Thu, 7 Feb 2013 20:58:51 GMT", "version": "v1" } ]
2013-08-09
[ [ "Gardner", "Susan", "" ], [ "He", "Daheng", "" ] ]
A triple-product correlation in the radiative \beta-decay rate of neutrons or of nuclei, characterized by the kinematic variable \xi\equiv (\vec{l}_\nu\times\vec{l}_e)\cdot\vec{k}, where, e.g., n(p) \to p(p') + e^-(l_e) + \bar{\nu}_e(l_\nu) + \gamma(k), can be generated by the pseudo-Chern-Simons term found by Harvey, ...
hep-ph/9510374
null
G. Knoechlein, S. Scherer, D. Drechsel (Institute for Nuclear Physics, Johannes Gutenberg-Universitaet, Mainz, Germany)
The Anomalous Decay eta -> pi pi gamma gamma
5 pages, revtex preprint, PS figures in separate file, presented at the International School of Nuclear Physics, Erice, Sicily, Italy, September 1995
Prog.Part.Nucl.Phys.36:137-139,1996
10.1016/0146-6410(96)00018-X
MKPH-T-95-26
hep-ph nucl-th
null
We investigate the rare radiative eta decay modes eta -> pi+ pi- gamma gamma and eta -> pi0 pi0 gamma gamma within the framework of chiral lagrangians at o(p^4) and present photon spectra for both processes.
[ { "created": "Mon, 23 Oct 1995 16:07:33 GMT", "version": "v1" } ]
2011-04-15
[ [ "Knoechlein", "G.", "", "Institute for Nuclear Physics,\n Johannes Gutenberg-Universitaet, Mainz, Germany" ], [ "Scherer", "S.", "", "Institute for Nuclear Physics,\n Johannes Gutenberg-Universitaet, Mainz, Germany" ], [ "Drechsel", "D.", "", "Institute fo...
We investigate the rare radiative eta decay modes eta -> pi+ pi- gamma gamma and eta -> pi0 pi0 gamma gamma within the framework of chiral lagrangians at o(p^4) and present photon spectra for both processes.
hep-ph/0606018
Christian Bauer
Christian W. Bauer
Hadronic B decays from SCET
Invited plenary talk given at FPCP 2006, Vancouver, Canada
null
null
null
hep-ph
null
In this talk I will discuss non-leptonic B decays, in particular how soft-collinear effective field theory (SCET) can be used to constrain the non-perturbative hadronic parameters required to describe the various observables.
[ { "created": "Thu, 1 Jun 2006 16:56:15 GMT", "version": "v1" } ]
2007-05-23
[ [ "Bauer", "Christian W.", "" ] ]
In this talk I will discuss non-leptonic B decays, in particular how soft-collinear effective field theory (SCET) can be used to constrain the non-perturbative hadronic parameters required to describe the various observables.
hep-ph/9612250
Marco Stratmann
M. Stratmann (Univ. Dortmund), W. Vogelsang (Rutherford Lab)
Next-to-Leading Order Evolution of Polarized and Unpolarized Fragmentation Functions
31 pages, LaTeX, 3 figures, uses epsfig style
Nucl.Phys.B496:41-65,1997
10.1016/S0550-3213(97)00182-X
DO-TH 96/23, RAL-TR-96-097
hep-ph
null
We determine the two-loop 'time-like' Altarelli-Parisi splitting functions, appearing in the next-to-leading order Q^2-evolution equations for fragmentation functions, via analytic continuation of the corresponding 'space-like' splitting functions for the evolution of parton distributions. We do this for the case of ...
[ { "created": "Wed, 4 Dec 1996 12:28:53 GMT", "version": "v1" } ]
2014-11-17
[ [ "Stratmann", "M.", "", "Univ. Dortmund" ], [ "Vogelsang", "W.", "", "Rutherford Lab" ] ]
We determine the two-loop 'time-like' Altarelli-Parisi splitting functions, appearing in the next-to-leading order Q^2-evolution equations for fragmentation functions, via analytic continuation of the corresponding 'space-like' splitting functions for the evolution of parton distributions. We do this for the case of un...
hep-ph/9904493
Clemens Heuson
C. Heuson
A structural model of quarks and leptons
7 pages, added references, corrected typos, small changes
null
null
null
hep-ph
null
A model is proposed in which quarks, leptons and perhaps gauge bosons are composites of magnetically charged rishons T(q=1/3) and V(q=0) with magnetic charges g=(1,2,-3)g0. Structural formulas of composite particles and their interactions are given, with the binding lines representing magnetic fields. Higher generati...
[ { "created": "Thu, 29 Apr 1999 14:43:55 GMT", "version": "v1" }, { "created": "Sat, 21 Jun 2003 12:28:01 GMT", "version": "v2" } ]
2007-05-23
[ [ "Heuson", "C.", "" ] ]
A model is proposed in which quarks, leptons and perhaps gauge bosons are composites of magnetically charged rishons T(q=1/3) and V(q=0) with magnetic charges g=(1,2,-3)g0. Structural formulas of composite particles and their interactions are given, with the binding lines representing magnetic fields. Higher generation...
hep-ph/0009286
Francesco Hautmann
J.C. Collins and F. Hautmann
Soft gluons and gauge-invariant subtractions in NLO parton-shower Monte Carlo event generators
11 pages, 2 figures; v2: comments and references added, results unchanged
JHEP 0103:016,2001
10.1088/1126-6708/2001/03/016
PSU-TH/230
hep-ph
null
We address the problem of decomposing graphs in perturbative QCD into terms associated with particular regions. Motivated by asking how to incorporate next-to-leading order (NLO) QCD corrections in parton-shower algorithms, we require that: (a) The integrand for the hard part is to be integrable even if the correctio...
[ { "created": "Mon, 25 Sep 2000 16:05:55 GMT", "version": "v1" }, { "created": "Tue, 27 Mar 2001 00:22:45 GMT", "version": "v2" } ]
2010-02-03
[ [ "Collins", "J. C.", "" ], [ "Hautmann", "F.", "" ] ]
We address the problem of decomposing graphs in perturbative QCD into terms associated with particular regions. Motivated by asking how to incorporate next-to-leading order (NLO) QCD corrections in parton-shower algorithms, we require that: (a) The integrand for the hard part is to be integrable even if the corrections...
2012.03894
Dmitri Melikhov
Wolfgang Lucha, Dmitri Melikhov, Hagop Sazdjian
OPE and quark-hadron duality for two-point functions of tetraquark currents in $1/N_c$ expansion
11 pages
Phys. Rev. D 103, 014012 (2021)
10.1103/PhysRevD.103.014012
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We discuss the Operator Product Expansion (OPE) and quark-hadron duality for two-point Green functions of tetraquark currents. We emphasize that the factorizable part of the OPE series for such Green functions, including nonperturbative contributions described by QCD condensates, is saturated by the full system of or...
[ { "created": "Mon, 7 Dec 2020 18:18:29 GMT", "version": "v1" } ]
2021-01-20
[ [ "Lucha", "Wolfgang", "" ], [ "Melikhov", "Dmitri", "" ], [ "Sazdjian", "Hagop", "" ] ]
We discuss the Operator Product Expansion (OPE) and quark-hadron duality for two-point Green functions of tetraquark currents. We emphasize that the factorizable part of the OPE series for such Green functions, including nonperturbative contributions described by QCD condensates, is saturated by the full system of ordi...
1703.03929
Long-Bin Chen
Long-Bin Chen, Yi Liang and Cong-Feng Qiao
Two-Loop integrals for CP-even heavy quarkonium production and decays
33 pages, 2 figures
null
10.1007/JHEP06(2017)025
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
By employing the method of differential equations, we compute the various types of two-loop master integrals involved in CP-even heavy quarkonium exclusive production and decays. All the integrals presented in this paper can be casted into canonical forms and expressed in terms of Goncharov polylogarithms and Harmoni...
[ { "created": "Sat, 11 Mar 2017 08:24:56 GMT", "version": "v1" }, { "created": "Sat, 8 Apr 2017 12:17:26 GMT", "version": "v2" } ]
2017-06-28
[ [ "Chen", "Long-Bin", "" ], [ "Liang", "Yi", "" ], [ "Qiao", "Cong-Feng", "" ] ]
By employing the method of differential equations, we compute the various types of two-loop master integrals involved in CP-even heavy quarkonium exclusive production and decays. All the integrals presented in this paper can be casted into canonical forms and expressed in terms of Goncharov polylogarithms and Harmonic ...
hep-ph/0201184
Seth A. Major
Tomasz J. Konopka and Seth A. Major
Observational Limits on Quantum Geometry Effects
17 pages, 4 eps figures; v2: references updated, revision in wording; v3: version to be published in New Jounral of Physics; v4: ref added
NewJ.Phys.4:57,2002
10.1088/1367-2630/4/1/357
null
hep-ph astro-ph gr-qc
null
Using a form of modified dispersion relations derived in the context of quantum geometry, we investigate limits set by current observations on potential corrections to Lorentz invariance. We use a phenomological model in which there are separate parameters for photons, leptons, and hadrons. Constraints on these param...
[ { "created": "Mon, 21 Jan 2002 01:55:40 GMT", "version": "v1" }, { "created": "Thu, 7 Mar 2002 20:12:57 GMT", "version": "v2" }, { "created": "Thu, 18 Jul 2002 16:29:52 GMT", "version": "v3" }, { "created": "Wed, 31 Jul 2002 13:20:22 GMT", "version": "v4" } ]
2008-11-26
[ [ "Konopka", "Tomasz J.", "" ], [ "Major", "Seth A.", "" ] ]
Using a form of modified dispersion relations derived in the context of quantum geometry, we investigate limits set by current observations on potential corrections to Lorentz invariance. We use a phenomological model in which there are separate parameters for photons, leptons, and hadrons. Constraints on these paramet...
2311.05939
Sven Yannick Klein
Sven Yannick Klein
SusHi 2.0 -- Higgs production cross sections in BSM models
10 pages, 4 figures, EPS-HEP2023
null
null
TTK-23-30 / P3H-23-085
hep-ph
http://creativecommons.org/licenses/by/4.0/
A new upcoming version of SusHi is introduced. It features unified input for the Standard Model (SM) and beyond the SM models (BSM) parameters for higher-order total cross sections for Higgs production in gluon fusion, heavy-quark annhilation, as well as Higgsstrahlung. Like previous versions of SusHi, it provides li...
[ { "created": "Fri, 10 Nov 2023 08:52:57 GMT", "version": "v1" } ]
2023-11-13
[ [ "Klein", "Sven Yannick", "" ] ]
A new upcoming version of SusHi is introduced. It features unified input for the Standard Model (SM) and beyond the SM models (BSM) parameters for higher-order total cross sections for Higgs production in gluon fusion, heavy-quark annhilation, as well as Higgsstrahlung. Like previous versions of SusHi, it provides link...
hep-ph/0409106
F. Krauss
Frank Krauss, Andreas Schaelicke, Steffen Schumann, Gerhard Soff
Simulating W/Z+jets production at the Tevatron
19 pages, 19 figures
Phys.Rev.D70:114009,2004
10.1103/PhysRevD.70.114009
null
hep-ph
null
The merging procedure of tree-level matrix elements and the subsequent parton shower as implemented in the new event generator SHERPA will be validated for the example of W/Z+jets production at the Tevatron. Comparisons with results obtained from other approaches and programs and with experimental results clearly sho...
[ { "created": "Thu, 9 Sep 2004 16:28:40 GMT", "version": "v1" } ]
2011-03-23
[ [ "Krauss", "Frank", "" ], [ "Schaelicke", "Andreas", "" ], [ "Schumann", "Steffen", "" ], [ "Soff", "Gerhard", "" ] ]
The merging procedure of tree-level matrix elements and the subsequent parton shower as implemented in the new event generator SHERPA will be validated for the example of W/Z+jets production at the Tevatron. Comparisons with results obtained from other approaches and programs and with experimental results clearly show ...
2106.11977
Jorge C. Romao
Rafael Boto, Jorge C. Rom\~ao and Jo\~ao P. Silva
Current bounds on the Type-Z $Z_3$ three Higgs doublet model
32 pages, 23 Figures in PDF. v2: impact of BFB corrected, benchmarks added
null
10.1103/PhysRevD.104.095006
CFTP/21-010
hep-ph
http://creativecommons.org/licenses/by/4.0/
Type-Z models, where charged leptons, up type quarks, and down type quarks each couple to a different scalar, are only possible when there are three or more Higgs doublets. We consider the Type-Z three Higgs doublet model imposed by a softly broken $Z_3$ symmetry. We take into account all theoretical and experimental...
[ { "created": "Tue, 22 Jun 2021 18:00:01 GMT", "version": "v1" }, { "created": "Fri, 23 Jul 2021 11:48:10 GMT", "version": "v2" } ]
2021-11-24
[ [ "Boto", "Rafael", "" ], [ "Romão", "Jorge C.", "" ], [ "Silva", "João P.", "" ] ]
Type-Z models, where charged leptons, up type quarks, and down type quarks each couple to a different scalar, are only possible when there are three or more Higgs doublets. We consider the Type-Z three Higgs doublet model imposed by a softly broken $Z_3$ symmetry. We take into account all theoretical and experimental c...
hep-ph/0007239
Graham Shore
G.M. Shore
The Angular Momentum and g_1^p Sum Rules for the Proton
5 pages, LaTeX, uses espcrc2.sty; invited talk at QCD00, Montpellier, July 2000
Nucl.Phys.Proc.Suppl. 96 (2001) 171-176
10.1016/S0920-5632(01)01127-6
CERN-TH/2000-214, SWAT/00-263, UGVA-DPT-00-7-1087
hep-ph
null
The gauge invariant operator formulation of the angular momentum sum rule ${1\over2} = J_q + J_g$ for the proton is presented and contrasted with the sum rule for the first moment of the polarised structure function $g_1^p$. The decoupling of the axial charge $a^0$ from the angular momentum sum rule is highlighted an...
[ { "created": "Fri, 21 Jul 2000 14:50:30 GMT", "version": "v1" } ]
2009-10-31
[ [ "Shore", "G. M.", "" ] ]
The gauge invariant operator formulation of the angular momentum sum rule ${1\over2} = J_q + J_g$ for the proton is presented and contrasted with the sum rule for the first moment of the polarised structure function $g_1^p$. The decoupling of the axial charge $a^0$ from the angular momentum sum rule is highlighted and ...
1910.07546
Kohei Fujikura
Kohei Fujikura, Yuichiro Nakai, Masaki Yamada
A more attractive scheme for radion stabilization and supercooled phase transition
24 pages, 5 figures, v2: final version with minor corrections
null
10.1007/JHEP02(2020)111
MIT-CTP/5149
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a new radion stabilization mechanism in the Randall-Sundrum spacetime, introducing a bulk ${SU(N_H)}$ gauge field which confines at a TeV scale. It turns out that the radion is stabilized by the balance between a brane tension and a pressure due to the Casimir energy of the strong ${SU(N_H)}$ gauge field. ...
[ { "created": "Wed, 16 Oct 2019 18:00:12 GMT", "version": "v1" }, { "created": "Tue, 16 Mar 2021 10:40:59 GMT", "version": "v2" } ]
2021-03-17
[ [ "Fujikura", "Kohei", "" ], [ "Nakai", "Yuichiro", "" ], [ "Yamada", "Masaki", "" ] ]
We propose a new radion stabilization mechanism in the Randall-Sundrum spacetime, introducing a bulk ${SU(N_H)}$ gauge field which confines at a TeV scale. It turns out that the radion is stabilized by the balance between a brane tension and a pressure due to the Casimir energy of the strong ${SU(N_H)}$ gauge field. We...
hep-ph/0309338
Hideaki Iida
Hideaki Iida, Makoto Oka and Hideo Suganuma (Tokyo Inst. Tech.)
Lattice-QCD-based Schwinger-Dyson Approach for Chiral Symmetry Restoration at Finite Temperature
Talk given at the XXI International Symposium on Lattice Field Theory (LATTICE 2003), Tsukuba, Ibaraki, Japan, 15-19 July 2003, Lattice2003(nonzero), 3 pages, 2 figures
null
10.1016/S0920-5632(03)02655-0
null
hep-ph hep-lat nucl-th
null
We propose the Schwinger-Dyson (SD) formalism based on lattice QCD, i.e., LQCD-based SD formalism, for the study of dynamical chiral-symmetry breaking in QCD. We extract the kernel function K(p^2) in the SD equation from the lattice data of the quark propagator in the Landau gauge. As remarkable features, we find inf...
[ { "created": "Tue, 30 Sep 2003 11:29:13 GMT", "version": "v1" } ]
2009-11-10
[ [ "Iida", "Hideaki", "", "Tokyo Inst. Tech." ], [ "Oka", "Makoto", "", "Tokyo Inst. Tech." ], [ "Suganuma", "Hideo", "", "Tokyo Inst. Tech." ] ]
We propose the Schwinger-Dyson (SD) formalism based on lattice QCD, i.e., LQCD-based SD formalism, for the study of dynamical chiral-symmetry breaking in QCD. We extract the kernel function K(p^2) in the SD equation from the lattice data of the quark propagator in the Landau gauge. As remarkable features, we find infra...
hep-ph/0610373
Mu-Chun Chen
Mu-Chun Chen, K.T. Mahanthappa
Relating Leptogenesis to Low Energy CP Violation
4 pages; to appear in Proceedings of SUSY06, the 14th International Conference on Supersymmetry and the Unification of Fundamental Interactions, UC Irvine, California, 12-17 June 2006
AIPConf.Proc.903:303-306,2007
10.1063/1.2735185
COLO-HEP-520, FERMILAB-CONF-06-389-T, UCI-TR-2006-18
hep-ph
null
In the minimal left-right symmetric model with spontaneous CP violation, there are only two intrinsic CP violating phases to account for all CP violation in both the quark and lepton sectors. In addition, the left-and right-handed Majorana mass terms for the neutrinos are proportional to each other due to the parity ...
[ { "created": "Fri, 27 Oct 2006 19:38:46 GMT", "version": "v1" }, { "created": "Sun, 19 Nov 2006 20:33:47 GMT", "version": "v2" } ]
2008-11-26
[ [ "Chen", "Mu-Chun", "" ], [ "Mahanthappa", "K. T.", "" ] ]
In the minimal left-right symmetric model with spontaneous CP violation, there are only two intrinsic CP violating phases to account for all CP violation in both the quark and lepton sectors. In addition, the left-and right-handed Majorana mass terms for the neutrinos are proportional to each other due to the parity in...
2010.05841
Georg Wolschin
Georg Wolschin
Bottomonium spectroscopy in the quark-gluon plasma
22 pages, 24 figures; Invited Review for Int. J. Mod. Phys. A
Int. J. Mod. Phys. A 35 (2020) 29, 2030016
10.1142/S0217751X20300161
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The spectroscopic properties of heavy quarkonia are substantially different in the quark-gluon plasma (QGP) that is created in relativistic heavy-ion collisions as compared to the vacuum situation that can be tested in pp collisions at the same center-of-mass energy. In this article, a series of recent works about th...
[ { "created": "Mon, 12 Oct 2020 16:45:19 GMT", "version": "v1" } ]
2020-11-03
[ [ "Wolschin", "Georg", "" ] ]
The spectroscopic properties of heavy quarkonia are substantially different in the quark-gluon plasma (QGP) that is created in relativistic heavy-ion collisions as compared to the vacuum situation that can be tested in pp collisions at the same center-of-mass energy. In this article, a series of recent works about the ...
0904.2727
Nikolaos Stefanis
I. O. Cherednikov, N. G. Stefanis
Renormalization-group properties of transverse-momentum dependent parton distribution functions in the light-cone gauge with the Mandelstam-Leibbrandt prescription
13 pages, 2 figures. v2 15 pages, text expanded, 2 figures added, typos removed. v3 some remarks added in conclusions; matches version to be published in PRD
Phys.Rev.D80:054008,2009
10.1103/PhysRevD.80.054008
RUB-TPII-04/09
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The renormalization-group properties of transverse-momentum dependent parton distribution functions in the light-cone gauge with the Mandelstam-Leibbrandt prescription for the gluon propagator are addressed. An expression for the transverse component of the gauge field at light-cone infinity, which plays a crucial ro...
[ { "created": "Fri, 17 Apr 2009 15:39:54 GMT", "version": "v1" }, { "created": "Wed, 24 Jun 2009 07:55:23 GMT", "version": "v2" }, { "created": "Wed, 26 Aug 2009 09:03:35 GMT", "version": "v3" } ]
2010-04-15
[ [ "Cherednikov", "I. O.", "" ], [ "Stefanis", "N. G.", "" ] ]
The renormalization-group properties of transverse-momentum dependent parton distribution functions in the light-cone gauge with the Mandelstam-Leibbrandt prescription for the gluon propagator are addressed. An expression for the transverse component of the gauge field at light-cone infinity, which plays a crucial role...
2401.07902
Zahra Tabrizi
Joachim Kopp, Noemi Rocco, Zahra Tabrizi
Unleashing the Power of EFT in Neutrino-Nucleus Scattering
27 pages, 3 figures
null
null
null
hep-ph hep-ex nucl-th
http://creativecommons.org/licenses/by/4.0/
Neutrino physics is advancing into a precision era with the construction of new experiments, particularly in the few GeV energy range. Within this energy range, neutrinos exhibit diverse interactions with nucleons and nuclei. This study delves in particular into neutrino--nucleus quasi-elastic cross sections, taking ...
[ { "created": "Mon, 15 Jan 2024 19:00:00 GMT", "version": "v1" } ]
2024-01-17
[ [ "Kopp", "Joachim", "" ], [ "Rocco", "Noemi", "" ], [ "Tabrizi", "Zahra", "" ] ]
Neutrino physics is advancing into a precision era with the construction of new experiments, particularly in the few GeV energy range. Within this energy range, neutrinos exhibit diverse interactions with nucleons and nuclei. This study delves in particular into neutrino--nucleus quasi-elastic cross sections, taking in...
2307.08306
Clemens Werthmann
Victor E. Ambru\c{s}, S\"oren Schlichting, Clemens Werthmann
System size dependence of pre-equilibrium and applicability of hydrodynamics in heavy-ion collisions
6 pages, 4 figures. Contribution to the HardProbes2023 conference proceedings
null
null
null
hep-ph nucl-th
http://creativecommons.org/licenses/by-nc-nd/4.0/
We simulate the space-time dynamics of high-energy collisions based on a microscopic kinetic description, in order to determine the range of applicability of an effective description in relativistic viscous hydrodynamics. We find that hydrodynamics provides a quantitatively accurate description of collective flow whe...
[ { "created": "Mon, 17 Jul 2023 08:00:38 GMT", "version": "v1" } ]
2023-07-18
[ [ "Ambruş", "Victor E.", "" ], [ "Schlichting", "Sören", "" ], [ "Werthmann", "Clemens", "" ] ]
We simulate the space-time dynamics of high-energy collisions based on a microscopic kinetic description, in order to determine the range of applicability of an effective description in relativistic viscous hydrodynamics. We find that hydrodynamics provides a quantitatively accurate description of collective flow when ...
hep-ph/0402076
Iain W. Stewart
Iain W. Stewart, Margaret E. Wessling, Mark B. Wise
Stable Heavy Pentaquark States
8 pages
Phys.Lett. B590 (2004) 185-189
10.1016/j.physletb.2004.03.087
MIT-CTP-3468, CALT-68-2474
hep-ph
null
If the Theta^+(1540) is interpreted as a bound state of a $\bar s$ quark and two (ud) diquarks in a relative P-wave, then it is very likely that there exist pentaquark states with a heavy antiquark, $\bar b$ or $\bar c$, and two ``light'' diquarks in a relative S-wave which are stable against strong decays. We make a...
[ { "created": "Mon, 9 Feb 2004 20:54:39 GMT", "version": "v1" } ]
2010-04-05
[ [ "Stewart", "Iain W.", "" ], [ "Wessling", "Margaret E.", "" ], [ "Wise", "Mark B.", "" ] ]
If the Theta^+(1540) is interpreted as a bound state of a $\bar s$ quark and two (ud) diquarks in a relative P-wave, then it is very likely that there exist pentaquark states with a heavy antiquark, $\bar b$ or $\bar c$, and two ``light'' diquarks in a relative S-wave which are stable against strong decays. We make a m...
1103.2055
John Gracey
J.A. Gracey
Two loop renormalization of the n = 2 Wilson operator in the RI'/SMOM scheme
39 latex pages, 1 figure, 23 tables, anc directory contains txt file with anomalous dimensions, conversion functions and data given in the tables of the paper
JHEP 1103:109,2011
10.1007/JHEP03(2011)109
LTH 910
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We compute the anomalous dimensions of the flavour non-singlet twist-2 Wilson operators in the RI'/SMOM scheme at two loops in an arbitrary linear covariant gauge. In addition we provide the full Green's function for these operators inserted in a quark 2-point function at the symmetric subtraction point. The three lo...
[ { "created": "Thu, 10 Mar 2011 15:13:48 GMT", "version": "v1" } ]
2011-05-24
[ [ "Gracey", "J. A.", "" ] ]
We compute the anomalous dimensions of the flavour non-singlet twist-2 Wilson operators in the RI'/SMOM scheme at two loops in an arbitrary linear covariant gauge. In addition we provide the full Green's function for these operators inserted in a quark 2-point function at the symmetric subtraction point. The three loop...
1602.05966
Farinaldo Queiroz
Farinaldo S. Queiroz, Carlos E. Yaguna, Christoph Weniger
Gamma-ray Limits on Neutrino Lines
5 pages, 3 figures. It matches published version
JCAP 1605 (2016) no.05, 050
10.1088/1475-7516/2016/05/050
null
hep-ph astro-ph.HE hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
MMonochromatic neutrinos from dark matter annihilations ($\chi\chi\to \nu\bar\nu$) are always produced in association with a gamma-ray spectrum generated by electroweak bremsstrahlung. Consequently, these neutrino lines can be searched for not only with neutrino detectors but also indirectly with gamma-ray telescopes...
[ { "created": "Thu, 18 Feb 2016 21:03:58 GMT", "version": "v1" }, { "created": "Tue, 5 Jul 2016 11:51:00 GMT", "version": "v2" } ]
2016-07-06
[ [ "Queiroz", "Farinaldo S.", "" ], [ "Yaguna", "Carlos E.", "" ], [ "Weniger", "Christoph", "" ] ]
MMonochromatic neutrinos from dark matter annihilations ($\chi\chi\to \nu\bar\nu$) are always produced in association with a gamma-ray spectrum generated by electroweak bremsstrahlung. Consequently, these neutrino lines can be searched for not only with neutrino detectors but also indirectly with gamma-ray telescopes. ...
1608.05888
Zachary Burell M.S.
Zachary Burell
Radiative Symmetry Breaking in the Supersymmetric Minimal B-L Extended Standard Model
M.S. Thesis (2011). University of Alabama. Advisor: Nobuchika Okada. arXiv admin note: text overlap with arXiv:hep-ph/9606414, arXiv:0901.0241 by other authors; text overlap with arXiv:0907.0039 by other authors without attribution
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Standard Model (SM) of particle physics is a precise model of electroweak interactions, however there is growing tension between the SM and observations (neutrino oscillations, dark matter, dark energy, baryogenesis, among others). There is no reason to expect the validity of the ad hoc SM to remain intact at ene...
[ { "created": "Sun, 21 Aug 2016 02:15:45 GMT", "version": "v1" } ]
2016-08-23
[ [ "Burell", "Zachary", "" ] ]
The Standard Model (SM) of particle physics is a precise model of electroweak interactions, however there is growing tension between the SM and observations (neutrino oscillations, dark matter, dark energy, baryogenesis, among others). There is no reason to expect the validity of the ad hoc SM to remain intact at energ...
hep-ph/0108197
Johann Kuehn
P.A. Baikov (Moscow State Univ.), K.G. Chetyrkin (Freiburg Univ.) and J.H. K\"uhn (Karlsruhe Univ.)
The Cross Section of e^+ e^- Annihilation into Hadrons of Order alpha_s^4 n_f^2 in Perturbative QCD
4 pages, revtex4 style
Phys.Rev.Lett. 88 (2002) 012001
10.1103/PhysRevLett.88.012001
THEP 01/13, TTP01-19
hep-ph
null
We present the first genuine QCD five-loop calculation of the vacuum polarization functions: analytical terms of order alpha_s^4 n_f^2 to the absorptive parts of vector and scalar correlators. These corrections form an important gauge-invariant subset of the full O(alpha_s^4) correction to $e^+ e^- annihilation into ...
[ { "created": "Thu, 23 Aug 2001 16:50:14 GMT", "version": "v1" } ]
2009-11-07
[ [ "Baikov", "P. A.", "", "Moscow State Univ." ], [ "Chetyrkin", "K. G.", "", "Freiburg Univ." ], [ "Kühn", "J. H.", "", "Karlsruhe Univ." ] ]
We present the first genuine QCD five-loop calculation of the vacuum polarization functions: analytical terms of order alpha_s^4 n_f^2 to the absorptive parts of vector and scalar correlators. These corrections form an important gauge-invariant subset of the full O(alpha_s^4) correction to $e^+ e^- annihilation into ha...
2102.01115
Anke Biek\"otter
Anke Biek\"otter, Parisa Gregg, Frank Krauss and Marek Sch\"onherr
Constraining CP violating operators in charged and neutral triple gauge couplings
7 pages, 3 figures; v2: added Wjj channel
null
10.1016/j.physletb.2021.136311
IPPP/20/77, MCnet-21-01
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We constrain $C\!P$-violating charged and neutral anomalous triple gauge couplings using LHC measurements and projections of diboson and VBF $Vjj$ production, both with subsequent leptonic decays. For triple gauge couplings involving $W$ bosons we analyse asymmetries and interpret our results in the SMEFT at dimensio...
[ { "created": "Mon, 1 Feb 2021 19:16:18 GMT", "version": "v1" }, { "created": "Thu, 4 Mar 2021 11:47:43 GMT", "version": "v2" } ]
2021-04-28
[ [ "Biekötter", "Anke", "" ], [ "Gregg", "Parisa", "" ], [ "Krauss", "Frank", "" ], [ "Schönherr", "Marek", "" ] ]
We constrain $C\!P$-violating charged and neutral anomalous triple gauge couplings using LHC measurements and projections of diboson and VBF $Vjj$ production, both with subsequent leptonic decays. For triple gauge couplings involving $W$ bosons we analyse asymmetries and interpret our results in the SMEFT at dimension-...
2212.00056
Benedict von Harling
Sebastian Bruggisser, Benedict von Harling, Oleksii Matsedonskyi, Geraldine Servant
Dilaton at the LHC: Complementary Probe of Composite Higgs
26 pages, 18 figures; v2: two plots, comments and references added, JHEP version
null
10.1007/JHEP05(2023)080
DESY-22-190
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The dilaton is predicted in various extensions of the standard model containing sectors with an approximate spontaneously-broken conformal invariance. As a Goldstone boson of a spontaneously broken symmetry, the dilaton can naturally be one of the lightest new physics particles, and therefore may be the first new phy...
[ { "created": "Wed, 30 Nov 2022 19:02:08 GMT", "version": "v1" }, { "created": "Tue, 9 May 2023 16:11:58 GMT", "version": "v2" } ]
2023-05-31
[ [ "Bruggisser", "Sebastian", "" ], [ "von Harling", "Benedict", "" ], [ "Matsedonskyi", "Oleksii", "" ], [ "Servant", "Geraldine", "" ] ]
The dilaton is predicted in various extensions of the standard model containing sectors with an approximate spontaneously-broken conformal invariance. As a Goldstone boson of a spontaneously broken symmetry, the dilaton can naturally be one of the lightest new physics particles, and therefore may be the first new physi...
2002.03937
Avdhesh Kumar Dr
Samapan Bhadury, Wojciech Florkowski, Amaresh Jaiswal, Avdhesh Kumar and Radoslaw Ryblewski
Relativistic dissipative spin dynamics in the relaxation time approximation
6 pages
Physics Letters B 814 (2021) 136096
10.1016/j.physletb.2021.136096
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The concept of the Wigner function is used to construct a semi-classical kinetic theory describing the evolution of the axial-current phase-space density of spin-1/2 particles in the relaxation time approximation. The resulting approach can be used to study spin-polarization effects in relativistic matter, in particu...
[ { "created": "Mon, 10 Feb 2020 16:46:08 GMT", "version": "v1" }, { "created": "Fri, 29 Jan 2021 09:09:29 GMT", "version": "v2" } ]
2021-02-01
[ [ "Bhadury", "Samapan", "" ], [ "Florkowski", "Wojciech", "" ], [ "Jaiswal", "Amaresh", "" ], [ "Kumar", "Avdhesh", "" ], [ "Ryblewski", "Radoslaw", "" ] ]
The concept of the Wigner function is used to construct a semi-classical kinetic theory describing the evolution of the axial-current phase-space density of spin-1/2 particles in the relaxation time approximation. The resulting approach can be used to study spin-polarization effects in relativistic matter, in particula...
hep-ph/9211317
null
Jonathan L. Rosner and Mihir P. Worah (Enrico Fermi Institute and Department of Physics, University of Chicago)
Model of the Quark Mixing Matrix
Presented by Mihir P. Worah at DPF 92 Meeting, Fermilab, November, 1992. 3 pages, LaTeX file
null
10.1103/PhysRevD.46.1131
Enrico Fermi Institute report EFI 92-62
hep-ph
null
The structure of the Cabibbo-Kobayashi-Maskawa (CKM) matrix is analyzed from the standpoint of a composite model. A model is constructed with three families of quarks, by taking tensor products of sufficient numbers of spin-1/2 representations and imagining the dominant terms in the mass matrix to arise from spin-spi...
[ { "created": "Thu, 26 Nov 1992 01:30:09 GMT", "version": "v1" } ]
2009-10-22
[ [ "Rosner", "Jonathan L.", "", "Enrico Fermi Institute and\n Department of Physics, University of Chicago" ], [ "Worah", "Mihir P.", "", "Enrico Fermi Institute and\n Department of Physics, University of Chicago" ] ]
The structure of the Cabibbo-Kobayashi-Maskawa (CKM) matrix is analyzed from the standpoint of a composite model. A model is constructed with three families of quarks, by taking tensor products of sufficient numbers of spin-1/2 representations and imagining the dominant terms in the mass matrix to arise from spin-spin ...
1410.4877
Alexei Prokudin
Zhong-Bo Kang, Alexei Prokudin, Peng Sun and Feng Yuan
Nucleon tensor charge from Collins azimuthal asymmetry measurements
Version published in Physical Review - Rapid Communications, improved discussion, additional references and formulas added
Phys. Rev. D 91, 071501 (2015)
10.1103/PhysRevD.91.071501
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the nucleon tensor charge from current experiments by a combined analysis of the Collins asymmetries in two hadron production in $e^+e^-$ annihilations and semi-inclusive hadron production in deep inelastic scattering processes. The transverse momentum dependent evolution is taken into account, for the...
[ { "created": "Fri, 17 Oct 2014 21:57:53 GMT", "version": "v1" }, { "created": "Fri, 20 Mar 2015 21:27:18 GMT", "version": "v2" } ]
2015-04-16
[ [ "Kang", "Zhong-Bo", "" ], [ "Prokudin", "Alexei", "" ], [ "Sun", "Peng", "" ], [ "Yuan", "Feng", "" ] ]
We investigate the nucleon tensor charge from current experiments by a combined analysis of the Collins asymmetries in two hadron production in $e^+e^-$ annihilations and semi-inclusive hadron production in deep inelastic scattering processes. The transverse momentum dependent evolution is taken into account, for the f...
hep-ph/0308230
Ralf W. Gothe
R.W. Gothe and S. Nussinov
Are there non-strange low-lying penta-quarks and can we understand their width
11 pages, 1 figure
null
null
null
hep-ph nucl-th
null
We argue that the lightest isospin 1/2 partners of the Z^+(1530) s(bar)uudd penta-quark predicted by Diakonov, Petrov and Polyakov are not the N(1710) mixed anti-decuplet states, but the pure non-strange u(bar)(ud)(ud) and d(bar)(ud)(ud) penta-quark states which may lie as low as 1200 MeV. The expected low width of a...
[ { "created": "Fri, 22 Aug 2003 16:29:30 GMT", "version": "v1" }, { "created": "Thu, 25 Sep 2003 17:52:43 GMT", "version": "v2" }, { "created": "Thu, 25 Sep 2003 21:59:03 GMT", "version": "v3" } ]
2007-05-23
[ [ "Gothe", "R. W.", "" ], [ "Nussinov", "S.", "" ] ]
We argue that the lightest isospin 1/2 partners of the Z^+(1530) s(bar)uudd penta-quark predicted by Diakonov, Petrov and Polyakov are not the N(1710) mixed anti-decuplet states, but the pure non-strange u(bar)(ud)(ud) and d(bar)(ud)(ud) penta-quark states which may lie as low as 1200 MeV. The expected low width of a f...
2112.03889
Quentin Bonnefoy
Quentin Bonnefoy, Emanuele Gendy, Christophe Grojean, Joshua T. Ruderman
Beyond Jarlskog: 699 invariants for CP violation in SMEFT
25 pages + 22 pages of appendices, 13 tables. v2: additional references, some extended discussions and fixed typos, matches JHEP version
JHEP 08 (2022) 032
10.1007/JHEP08(2022)032
DESY 21-205, HU-EP-21/50
hep-ph hep-ex hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
As SMEFT is a framework of growing importance to analyze high-energy data, understanding its parameter space is crucial. The latter is commonly split into CP-even and CP-odd parts, but this classification is obscured by the fact that CP violation is actually a collective effect that is best captured by considering fl...
[ { "created": "Tue, 7 Dec 2021 18:37:50 GMT", "version": "v1" }, { "created": "Thu, 25 Aug 2022 18:26:34 GMT", "version": "v2" } ]
2022-08-29
[ [ "Bonnefoy", "Quentin", "" ], [ "Gendy", "Emanuele", "" ], [ "Grojean", "Christophe", "" ], [ "Ruderman", "Joshua T.", "" ] ]
As SMEFT is a framework of growing importance to analyze high-energy data, understanding its parameter space is crucial. The latter is commonly split into CP-even and CP-odd parts, but this classification is obscured by the fact that CP violation is actually a collective effect that is best captured by considering flav...
hep-ph/9608312
Kevin S. McFarland
K.S. McFarland
Comment on Leptophobic Bosons and $\nu N$ Neutral Current Scattering Data
LaTeX, 3 pages, 1 embedded PS figure, available at http://cordelia.fnal.gov/~ksmcf/publications/moriond_comment.ps.gz . Presented at the XXXIieme Rencontres de Moriond, Electroweak Interactions and Unified Theories
null
null
FERMILAB-Conf-96/228
hep-ph
null
The relevance of existing $\nu N$ deep inelastic scattering data to models containing a leptophobic neutral vector boson is discussed. It is shown that this neutral current data is in good agreement with the Standard Model and disfavors such a leptophobic boson.
[ { "created": "Tue, 13 Aug 1996 21:23:05 GMT", "version": "v1" } ]
2007-05-23
[ [ "McFarland", "K. S.", "" ] ]
The relevance of existing $\nu N$ deep inelastic scattering data to models containing a leptophobic neutral vector boson is discussed. It is shown that this neutral current data is in good agreement with the Standard Model and disfavors such a leptophobic boson.
1207.6252
Brian Batell
Brian Batell, David McKeen, Maxim Pospelov
Singlet Neighbors of the Higgs Boson
22 pages, 7 figures
null
10.1007/JHEP10(2012)104
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The newly discovered resonance at 125 GeV has properties consistent with the Standard Model (SM) Higgs particle, although some production and/or decay channels currently exhibit O(1) deviations. We consider scenarios with a new scalar singlet field with couplings to electrically charged vector-like matter, focusing p...
[ { "created": "Thu, 26 Jul 2012 12:23:43 GMT", "version": "v1" } ]
2015-06-05
[ [ "Batell", "Brian", "" ], [ "McKeen", "David", "" ], [ "Pospelov", "Maxim", "" ] ]
The newly discovered resonance at 125 GeV has properties consistent with the Standard Model (SM) Higgs particle, although some production and/or decay channels currently exhibit O(1) deviations. We consider scenarios with a new scalar singlet field with couplings to electrically charged vector-like matter, focusing par...
1912.10883
Einan Gardi
Einan Gardi, Simon Caron-Huot, Joscha Reichel and Leonardo Vernazza
The High-Energy Limit of 2-to-2 Partonic Scattering Amplitudes
19 pages, 4 figures; Proceedings of the 14th International Symposium on Radiative Corrections (RADCOR2019) 9-13 September 2019, Palais des Papes, Avignon, France
PoS(RADCOR2019)050
null
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recently, there has been significant progress in computing scattering amplitudes in the high-energy limit using rapidity evolution equations. We describe the state-of-the-art and demonstrate the interplay between exponentiation of high-energy logarithms and that of infrared singularities. The focus in this talk is th...
[ { "created": "Mon, 23 Dec 2019 14:47:57 GMT", "version": "v1" } ]
2019-12-24
[ [ "Gardi", "Einan", "" ], [ "Caron-Huot", "Simon", "" ], [ "Reichel", "Joscha", "" ], [ "Vernazza", "Leonardo", "" ] ]
Recently, there has been significant progress in computing scattering amplitudes in the high-energy limit using rapidity evolution equations. We describe the state-of-the-art and demonstrate the interplay between exponentiation of high-energy logarithms and that of infrared singularities. The focus in this talk is the ...
0807.5112
Almas Khan
S.M. Barr and Almas Khan
A Realistic Radiative Fermion Mass Hierarchy in Non-supersymmetric SO(10)
13 pages, 4 figures, RevTeX 4
Phys.Rev.D79:115005,2009
10.1103/PhysRevD.79.115005
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A non-supersymmetric grand unified theory can exhibit a "radiative fermion mass hierarchy", in which the heavier quarks and leptons get mass at tree level and the lighter ones get mass from loop diagrams. Recently the first predictive model of this type was proposed. Here it is analyzed numerically and it is shown to...
[ { "created": "Thu, 31 Jul 2008 17:10:19 GMT", "version": "v1" }, { "created": "Sat, 23 Aug 2008 15:35:17 GMT", "version": "v2" } ]
2009-06-30
[ [ "Barr", "S. M.", "" ], [ "Khan", "Almas", "" ] ]
A non-supersymmetric grand unified theory can exhibit a "radiative fermion mass hierarchy", in which the heavier quarks and leptons get mass at tree level and the lighter ones get mass from loop diagrams. Recently the first predictive model of this type was proposed. Here it is analyzed numerically and it is shown to g...
2405.06958
Niu Su
Niu Su, Hua-Xing Chen, Philipp Gubler, Atsushi Hosaka
Investigation on the $\Omega(2012)$ from QCD sum rules
9 pages, 6 figures, 1 table, revised version to be published in PRD
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the recently observed $\Omega(2012)$ baryon in QCD sum rules. We construct the $P$-wave $\Omega$ baryon currents with a covariant derivative, and perform spin projection to obtain the currents with total spin 1/2 and 3/2. We then apply the parity-projected QCD sum rules to separate the contributions of the p...
[ { "created": "Sat, 11 May 2024 08:53:04 GMT", "version": "v1" }, { "created": "Thu, 18 Jul 2024 05:35:41 GMT", "version": "v2" } ]
2024-07-19
[ [ "Su", "Niu", "" ], [ "Chen", "Hua-Xing", "" ], [ "Gubler", "Philipp", "" ], [ "Hosaka", "Atsushi", "" ] ]
We study the recently observed $\Omega(2012)$ baryon in QCD sum rules. We construct the $P$-wave $\Omega$ baryon currents with a covariant derivative, and perform spin projection to obtain the currents with total spin 1/2 and 3/2. We then apply the parity-projected QCD sum rules to separate the contributions of the pos...
hep-ph/0404257
Shahid Hussain
Shahid Hussain and Douglas W. McKay
Constraining low scale gravity with ultrahigh energy neutrinos
3 pages, 2 figures, to appear in "Lake Louise Winter Institute 2004" conference proceedings
null
10.1142/9789812701961_0024
null
hep-ph
null
We show that LSG model predictions of event ratios are clearly distinguished from those of the SM. This is true in all models of ultrahigh energy (UHE) neutrino sources, in both $\nu_e:\nu_{\mu}:\nu_{\tau} = 1:1:1$ and $\nu_e:\nu_{\mu}:\nu_{\tau} = 1:2:0$ scenarios for the flux incident on earth. In particular the ra...
[ { "created": "Wed, 28 Apr 2004 16:32:31 GMT", "version": "v1" } ]
2017-08-23
[ [ "Hussain", "Shahid", "" ], [ "McKay", "Douglas W.", "" ] ]
We show that LSG model predictions of event ratios are clearly distinguished from those of the SM. This is true in all models of ultrahigh energy (UHE) neutrino sources, in both $\nu_e:\nu_{\mu}:\nu_{\tau} = 1:1:1$ and $\nu_e:\nu_{\mu}:\nu_{\tau} = 1:2:0$ scenarios for the flux incident on earth. In particular the rati...
1908.03961
Dipankar Das
Dipankar Das
Relating the Cabibbo angle to $\tan\beta$ in a two Higgs-doublet model
8 pages, a figure and some discussions added, version accepted for publication in Phys. Rev. D
Phys. Rev. D 100, 075004 (2019)
10.1103/PhysRevD.100.075004
LU TP 19-39
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In a two Higgs-doublet model with $D_4$ flavor symmetry, we establish a relation between $\tan\beta$ and the Cabibbo angle. Due to a small number of parameters, the quark Yukawa sector of the model is very predictive. The flavor changing neutral currents are small enough to allow for relatively light nonstandard scal...
[ { "created": "Sun, 11 Aug 2019 21:25:58 GMT", "version": "v1" }, { "created": "Mon, 23 Sep 2019 09:46:48 GMT", "version": "v2" } ]
2019-10-09
[ [ "Das", "Dipankar", "" ] ]
In a two Higgs-doublet model with $D_4$ flavor symmetry, we establish a relation between $\tan\beta$ and the Cabibbo angle. Due to a small number of parameters, the quark Yukawa sector of the model is very predictive. The flavor changing neutral currents are small enough to allow for relatively light nonstandard scalar...
1712.07621
Julien Baglio
Julien Baglio, Silvia Pascoli, Cedric Weiland
$W^+ W^- H$ Production at Lepton Colliders: A New Hope for Heavy Neutral Leptons
6 pages double-column, 4 figures. v2: more details added, matches the published version
Eur. Phys. J. C 78 (2018) 795
10.1140/epjc/s10052-018-6279-x
IPPP/17/111
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present the first study of the production of a Standard Model Higgs boson at a lepton collider in association with a pair of W bosons, $e^+_{} e^-_{} \to W^+_{} W^-_{} H$, in the inverse seesaw model. Taking into account all relevant experimental and theoretical constraints, we find sizable effects due to the addi...
[ { "created": "Wed, 20 Dec 2017 18:19:26 GMT", "version": "v1" }, { "created": "Thu, 4 Oct 2018 07:52:43 GMT", "version": "v2" } ]
2018-10-05
[ [ "Baglio", "Julien", "" ], [ "Pascoli", "Silvia", "" ], [ "Weiland", "Cedric", "" ] ]
We present the first study of the production of a Standard Model Higgs boson at a lepton collider in association with a pair of W bosons, $e^+_{} e^-_{} \to W^+_{} W^-_{} H$, in the inverse seesaw model. Taking into account all relevant experimental and theoretical constraints, we find sizable effects due to the additi...
1602.04291
Hidekazu Tanaka
Shuji Sasagawa and Hidekazu Tanaka
Schwinger-Dyson Equation in Minkowski Space beyond the IE Approximation
9 pages, 4 figures
Prog Theor Exp Phys (2017)
10.1093/ptep/ptw179
RUP-16-4
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the properties of fermion mass functions in quantum electrodynamics calculated by the Schwinger-Dyson equation in the strong coupling region, in which the loop integration is performed in Minkowski space. The calculated results without the instantaneous exchange approximation are compared with those ob...
[ { "created": "Sat, 13 Feb 2016 06:35:17 GMT", "version": "v1" }, { "created": "Sat, 25 Mar 2017 06:57:53 GMT", "version": "v2" } ]
2019-12-06
[ [ "Sasagawa", "Shuji", "" ], [ "Tanaka", "Hidekazu", "" ] ]
We investigate the properties of fermion mass functions in quantum electrodynamics calculated by the Schwinger-Dyson equation in the strong coupling region, in which the loop integration is performed in Minkowski space. The calculated results without the instantaneous exchange approximation are compared with those obta...
hep-ph/9710416
null
U. Baur (SUNY Buffalo), T. Han (UC Davis), J. Ohnemus (LBL)
QCD Corrections and Anomalous Couplings in $Z\gamma$ Production at Hadron Colliders
47 pages, Revtex3 file, 15 postscript figures
Phys.Rev.D57:2823-2836,1998
10.1103/PhysRevD.57.2823
UCD-97-20
hep-ph
null
The processes $pp/ pbar p \to Z \gamma + X \to \ell^+ \ell^- \gamma + X$ ($\ell=e, \mu$) and $pp/ pbarp \to Z \gamma + X \to \bar\nu\nu\gamma + X$ are calculated to ${\cal O}(\alpha_s)$ for general $ZZ\gamma$ and $Z\gamma\gamma$ couplings. The impact of ${\cal O}(\alpha_s)$ QCD corrections on the observability of $ZZ...
[ { "created": "Mon, 20 Oct 1997 21:12:56 GMT", "version": "v1" } ]
2011-06-07
[ [ "Baur", "U.", "", "SUNY Buffalo" ], [ "Han", "T.", "", "UC Davis" ], [ "Ohnemus", "J.", "", "LBL" ] ]
The processes $pp/ pbar p \to Z \gamma + X \to \ell^+ \ell^- \gamma + X$ ($\ell=e, \mu$) and $pp/ pbarp \to Z \gamma + X \to \bar\nu\nu\gamma + X$ are calculated to ${\cal O}(\alpha_s)$ for general $ZZ\gamma$ and $Z\gamma\gamma$ couplings. The impact of ${\cal O}(\alpha_s)$ QCD corrections on the observability of $ZZ\g...
1805.11637
Elias Bernreuther
Elias Bernreuther and Jan Horak and Tilman Plehn and Anja Butter
Actual Physics behind Mono-X
32 pages, 18 figures; version v2: corrected typos, added references; version v3: added figures and references, corrected typos
SciPost Phys. 5, 034 (2018)
10.21468/SciPostPhys.5.4.034
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Mono-X searches are standard dark matter search strategies at the LHC. First, we show how in the case of initial state radiation they essentially collapse to mono-jet searches. Second, we systematically study mono-X signatures from decays of heavier dark matter states. Direct detection constraints strongly limit our ...
[ { "created": "Tue, 29 May 2018 18:23:09 GMT", "version": "v1" }, { "created": "Thu, 14 Jun 2018 17:42:50 GMT", "version": "v2" }, { "created": "Wed, 19 Sep 2018 20:06:27 GMT", "version": "v3" } ]
2018-10-17
[ [ "Bernreuther", "Elias", "" ], [ "Horak", "Jan", "" ], [ "Plehn", "Tilman", "" ], [ "Butter", "Anja", "" ] ]
Mono-X searches are standard dark matter search strategies at the LHC. First, we show how in the case of initial state radiation they essentially collapse to mono-jet searches. Second, we systematically study mono-X signatures from decays of heavier dark matter states. Direct detection constraints strongly limit our MS...
hep-ph/9905214
Yuri V. Kovchegov
Yuri V. Kovchegov (CERN / University of Minnesota)
Unitarization of the BFKL Pomeron on a Nucleus
REVTeX, 20 pages, 6 figures
Phys.Rev. D61 (2000) 074018
10.1103/PhysRevD.61.074018
CERN-TH/99-166, NUC-MN-99/8-T, TPI-MINN-99/26
hep-ph
null
We analyze the evolution equation describing all multiple hard pomeron exchanges in a hadronic or nuclear structure functions that was proposed earlier. We construct a perturbation series providing us with an exact solution to the equation outside of the saturation region. The series demonstrates how at moderately hi...
[ { "created": "Mon, 3 May 1999 20:31:10 GMT", "version": "v1" }, { "created": "Fri, 21 May 1999 20:39:58 GMT", "version": "v2" }, { "created": "Fri, 20 Aug 1999 21:57:24 GMT", "version": "v3" } ]
2009-10-31
[ [ "Kovchegov", "Yuri V.", "", "CERN / University of Minnesota" ] ]
We analyze the evolution equation describing all multiple hard pomeron exchanges in a hadronic or nuclear structure functions that was proposed earlier. We construct a perturbation series providing us with an exact solution to the equation outside of the saturation region. The series demonstrates how at moderately high...
hep-ph/0301198
Hai-Yang Cheng
Hai-Yang Cheng
Hadronic Charmed Meson Decays Involving Axial Vector Mesons
19 pages
Phys.Rev. D67 (2003) 094007
10.1103/PhysRevD.67.094007
null
hep-ph hep-ex
null
Cabibbo-allowed charmed meson decays into a pseudoscalar meson and an axial-vector meson are studied. The charm to axial-vector meson transition form factors are evaluated in the Isgur-Scora-Grinstein-Wise quark model. The dipole momentum dependence of the $D\to K$ transition form factor and the presence of a sizable...
[ { "created": "Thu, 23 Jan 2003 00:56:11 GMT", "version": "v1" } ]
2009-11-10
[ [ "Cheng", "Hai-Yang", "" ] ]
Cabibbo-allowed charmed meson decays into a pseudoscalar meson and an axial-vector meson are studied. The charm to axial-vector meson transition form factors are evaluated in the Isgur-Scora-Grinstein-Wise quark model. The dipole momentum dependence of the $D\to K$ transition form factor and the presence of a sizable l...
1902.04333
Qin-Tao Song
S. Kumano, Qin-Tao Song and O. V. Teryaev
Hadron tomography in meson-pair production and gravitational form factors
6 pages, 4 figures; Proceedings of 23rd International Spin Physics Symposium (SPIN2018), 10-14 September, 2018; Ferrara, Italy
null
null
KEK-TH-2103, J-PARC-TH-0159
hep-ph hep-ex hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Generalized parton distributions (GPDs) are 3-dimensional (3D) structure functions for hadrons, and they are important for solving the proton spin puzzle including partonic orbital-angular-momentum contributions. The $s$-$t$ crossed quantities of the GPDs are generalized distribution amplitudes (GDAs). Here, $s$ and ...
[ { "created": "Tue, 12 Feb 2019 11:13:22 GMT", "version": "v1" } ]
2019-02-13
[ [ "Kumano", "S.", "" ], [ "Song", "Qin-Tao", "" ], [ "Teryaev", "O. V.", "" ] ]
Generalized parton distributions (GPDs) are 3-dimensional (3D) structure functions for hadrons, and they are important for solving the proton spin puzzle including partonic orbital-angular-momentum contributions. The $s$-$t$ crossed quantities of the GPDs are generalized distribution amplitudes (GDAs). Here, $s$ and $t...
1912.03511
Tousik Samui
Aruna Kumar Nayak, Santosh Kumar Rai, Tousik Samui
Improving Heavy Dijet Resonance Searches Using Jet Substructure at the LHC
24 pages, 4 tables, 8 figures, published version
Eur. Phys. J. C 81 (2021) 130
10.1140/epjc/s10052-021-08856-9
HRI-RECAPP-2019-005
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The search for new physics at high energy accelerators has been at the crossroads with very little hint of signals suggesting otherwise. The challenges at a hadronic machine such as the LHC is compounded by the fact that final states are swamped with jets which one needs to understand and unravel. A positive step in ...
[ { "created": "Sat, 7 Dec 2019 14:34:37 GMT", "version": "v1" }, { "created": "Thu, 17 Sep 2020 19:21:12 GMT", "version": "v2" }, { "created": "Tue, 11 Jun 2024 09:50:22 GMT", "version": "v3" } ]
2024-06-12
[ [ "Nayak", "Aruna Kumar", "" ], [ "Rai", "Santosh Kumar", "" ], [ "Samui", "Tousik", "" ] ]
The search for new physics at high energy accelerators has been at the crossroads with very little hint of signals suggesting otherwise. The challenges at a hadronic machine such as the LHC is compounded by the fact that final states are swamped with jets which one needs to understand and unravel. A positive step in th...
0909.4159
Fabian Eichst\"adt
Fabian Eichstaedt, Stefan Leupold and Ulrich Mosel
Phenomenological model for the Drell-Yan process: Reexamined
15 pages, 4 figures, references added, typos corrected, minor additions to the text, version as accepted for publication by Phys. Rev. D
Phys.Rev.D81:034002,2010
10.1103/PhysRevD.81.034002
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Drell-Yan pair production is investigated. We reexamine a model where the quark momentum fraction is defined as the ratio of the corresponding light cone components of the quark and parent nucleon in a naive parton-model approach. It is shown that results differ from the standard parton model. This is due to unphysic...
[ { "created": "Wed, 23 Sep 2009 09:31:22 GMT", "version": "v1" }, { "created": "Mon, 8 Feb 2010 12:16:14 GMT", "version": "v2" } ]
2010-04-06
[ [ "Eichstaedt", "Fabian", "" ], [ "Leupold", "Stefan", "" ], [ "Mosel", "Ulrich", "" ] ]
Drell-Yan pair production is investigated. We reexamine a model where the quark momentum fraction is defined as the ratio of the corresponding light cone components of the quark and parent nucleon in a naive parton-model approach. It is shown that results differ from the standard parton model. This is due to unphysical...
1912.12497
Alexander Studenikin
Alexander Studenikin
Electromagnetic properties of neutrinos
6 pages in LaTex, to appear in the proceedings of the European Physical Society Conference on High Energy Physics - EPS-HEP2019 - 10-17 July, 2019, Ghent, Belgium. arXiv admin note: substantial text overlap with arXiv:1801.08887, arXiv:1912.12501
Pos EPS-HEP2019 374
null
null
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
After a brief introduction to neutrino electromagnetic properties we focus on the most important constraints on neutrino magnetic moments, charge radii and millicharges from the terrestrial experiments and astrophysical considerations. The promising new possibilities for constraining neutrino electromagnetic properti...
[ { "created": "Sat, 28 Dec 2019 18:14:23 GMT", "version": "v1" } ]
2020-09-04
[ [ "Studenikin", "Alexander", "" ] ]
After a brief introduction to neutrino electromagnetic properties we focus on the most important constraints on neutrino magnetic moments, charge radii and millicharges from the terrestrial experiments and astrophysical considerations. The promising new possibilities for constraining neutrino electromagnetic properties...
hep-ph/9311205
Raju
Larry McLerran and Raju Venugopalan
Gluon Distribution Functions for Very Large Nuclei at Small Transverse Momentum
TPI--MINN--93--52/T, NUC--MINN--93--28/T, UMN--TH--1224/93, LaTex, 11 pages
Phys.Rev. D49 (1994) 3352-3355
10.1103/PhysRevD.49.3352
null
hep-ph nucl-th
null
We show that the gluon distribution function for very large nuclei may be computed for small transverse momentum as correlation functions of an ultraviolet finite two dimensional Euclidean field theory. This computation is valid to all orders in the density of partons per unit area, but to lowest order in $\alpha_s$....
[ { "created": "Mon, 1 Nov 1993 19:25:50 GMT", "version": "v1" }, { "created": "Mon, 8 Nov 1993 15:29:52 GMT", "version": "v2" } ]
2009-10-22
[ [ "McLerran", "Larry", "" ], [ "Venugopalan", "Raju", "" ] ]
We show that the gluon distribution function for very large nuclei may be computed for small transverse momentum as correlation functions of an ultraviolet finite two dimensional Euclidean field theory. This computation is valid to all orders in the density of partons per unit area, but to lowest order in $\alpha_s$. T...
hep-ph/0303102
Guido Montagna
C.M. Carloni Calame, G. Montagna, O. Nicrosini and M. Treccani
Higher-order QED corrections to W-boson mass determination at hadron colliders
9 pages, 2 figures, 1 table, RevTeX
Phys.Rev. D69 (2004) 037301
10.1103/PhysRevD.69.037301
FNT/T 2003/05
hep-ph hep-ex
null
The impact of higher-order final-state photonic corrections on the precise determination of the W-boson mass at the Tevatron and LHC colliders is evaluated. In the presence of realistic selection criteria, the shift in the W mass from a fit to the transverse mass distribution is found to be about 10 MeV in the $W \to...
[ { "created": "Thu, 13 Mar 2003 09:26:49 GMT", "version": "v1" } ]
2009-11-10
[ [ "Calame", "C. M. Carloni", "" ], [ "Montagna", "G.", "" ], [ "Nicrosini", "O.", "" ], [ "Treccani", "M.", "" ] ]
The impact of higher-order final-state photonic corrections on the precise determination of the W-boson mass at the Tevatron and LHC colliders is evaluated. In the presence of realistic selection criteria, the shift in the W mass from a fit to the transverse mass distribution is found to be about 10 MeV in the $W \to \...
hep-ph/0011179
Kwei-Chou Yang
Hai-Yang Cheng and Kwei-Chou Yang
$B \to J/\psi K$ Decays in QCD Factorization
18 pages, 2 figures. Typos in Eqs.(3.4), (3.5), and (3.6) are corrected
Phys.Rev. D63 (2001) 074011
10.1103/PhysRevD.63.074011
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The hadronic decays $B\to J/\psi K(K^*)$ are interesting because experimentally they are the only color-suppressed modes which have been measured, and theoretically they are calculable by QCD factorization even the emitted meson $J\psi$ is heavy. We analyze the decay $B\to J\psi K$ within the framework of QCD factori...
[ { "created": "Tue, 14 Nov 2000 16:09:44 GMT", "version": "v1" }, { "created": "Thu, 21 Dec 2000 15:53:27 GMT", "version": "v2" }, { "created": "Mon, 29 Aug 2016 07:14:12 GMT", "version": "v3" } ]
2016-08-30
[ [ "Cheng", "Hai-Yang", "" ], [ "Yang", "Kwei-Chou", "" ] ]
The hadronic decays $B\to J/\psi K(K^*)$ are interesting because experimentally they are the only color-suppressed modes which have been measured, and theoretically they are calculable by QCD factorization even the emitted meson $J\psi$ is heavy. We analyze the decay $B\to J\psi K$ within the framework of QCD factoriza...
hep-ph/9305291
Ian Kogan
Ian I. Kogan
Two Dimensional Field Theory Description of Disoriented Chiral Condensate
10 pages, preprint PUPT-1401, May 1993, plain LateX
Phys.Rev. D48 (1993) 3971-3975
10.1103/PhysRevD.48.R3971
null
hep-ph hep-th
null
We consider the effective $1+1$-dimensional chiral theory describing fluctuations of the order parameter of the Disoriented Chiral Condensate (DCC) which can be formed in the central rapidity region in a relativistic nucleus-nucleus or nucleon-nucleon collisions at high energy. Using $1+1$-dimensional reduction of QC...
[ { "created": "Thu, 20 May 1993 01:04:15 GMT", "version": "v1" } ]
2016-09-01
[ [ "Kogan", "Ian I.", "" ] ]
We consider the effective $1+1$-dimensional chiral theory describing fluctuations of the order parameter of the Disoriented Chiral Condensate (DCC) which can be formed in the central rapidity region in a relativistic nucleus-nucleus or nucleon-nucleon collisions at high energy. Using $1+1$-dimensional reduction of QCD ...