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hep-ph/0402274
Takashi Shimomura
Kanji Fujii and Takashi Shimomura
Expectation values of flavor-neutrino currents in field theoretical approach to oscillation problem -- formulation
31 pages, 12 figures
null
null
EPHOU-04-001
hep-ph
null
As a possible approach to the neutrino oscillation on the basis of quantum field theory, the expectation values of the flavor-neutrino currents are investigated by employing the finite-time transition matrix in the interaction representation. Such expectation values give us in the simplest form a possible way of trea...
[ { "created": "Thu, 26 Feb 2004 09:12:47 GMT", "version": "v1" } ]
2007-05-23
[ [ "Fujii", "Kanji", "" ], [ "Shimomura", "Takashi", "" ] ]
As a possible approach to the neutrino oscillation on the basis of quantum field theory, the expectation values of the flavor-neutrino currents are investigated by employing the finite-time transition matrix in the interaction representation. Such expectation values give us in the simplest form a possible way of treati...
2312.09896
Marco Niggetiedt
Micha{\l} Czakon, Felix Eschment, Marco Niggetiedt, Rene Poncelet, Tom Schellenberger
Top-Bottom Interference Contribution to Fully-Inclusive Higgs Production
6 pages, 1 table
Phys. Rev. Lett. 132, 211902 (2024)
10.1103/PhysRevLett.132.211902
P3H-23-101, TTK-23-34, MPP-2023-286, IFJPAN-IV-2023-6
hep-ph
http://creativecommons.org/licenses/by/4.0/
We evaluate the top-bottom interference contribution to the fully-inclusive Higgs production cross section at next-to-next-to-leading order in QCD. Although bottom-quark-mass effects are power-suppressed, the accuracy of state-of-the-art theory predictions makes an exact determination of this effect indispensable. Th...
[ { "created": "Fri, 15 Dec 2023 15:46:16 GMT", "version": "v1" }, { "created": "Fri, 24 May 2024 07:31:28 GMT", "version": "v2" } ]
2024-05-27
[ [ "Czakon", "Michał", "" ], [ "Eschment", "Felix", "" ], [ "Niggetiedt", "Marco", "" ], [ "Poncelet", "Rene", "" ], [ "Schellenberger", "Tom", "" ] ]
We evaluate the top-bottom interference contribution to the fully-inclusive Higgs production cross section at next-to-next-to-leading order in QCD. Although bottom-quark-mass effects are power-suppressed, the accuracy of state-of-the-art theory predictions makes an exact determination of this effect indispensable. The ...
hep-ph/0607223
Redamy Perez Ramos
Redamy Perez Ramos (LPTHE)
Single Inclusive Distribution and Two-Particle Correlations Inside One Jet at "Modified Leading Logarithmic Approximation" of Quantum Chromodynamics II : Steepest Descent Evaluation at Small X
LaTeX, 22 pages, 18 .eps figures
JHEP0609:014,2006
10.1088/1126-6708/2006/09/014
null
hep-ph
null
The MLLA single inclusive distribution inside one high energy (gluon) jet at small x is estimated by the steepest descent method. Its analytical expression is obtained outside the "limiting spectrum". It is then used to evaluate 2-particle correlations at the same level of generality. The dependence of both observabl...
[ { "created": "Thu, 20 Jul 2006 10:03:41 GMT", "version": "v1" } ]
2009-11-11
[ [ "Ramos", "Redamy Perez", "", "LPTHE" ] ]
The MLLA single inclusive distribution inside one high energy (gluon) jet at small x is estimated by the steepest descent method. Its analytical expression is obtained outside the "limiting spectrum". It is then used to evaluate 2-particle correlations at the same level of generality. The dependence of both observables...
1508.06131
Shashank Bhatnagar Dr.
Hluf Negash and Shashank Bhatnagar
Spectroscopy of ground and excited states of pseudoscalar and vector charmonium and bottomonium
33 pages, 5 figure, 6 tables
Intl. J. Mod. Phys. E25, 1650059 (2016)
10.1142/S0218301316500592
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work we calculate the mass spectrum, weak decay constants, two photon decay widths, and two gluon decay widths of ground (1S), and radially excited (2S,3S,...) states of pseudoscalar charmoniuum and bottomonium such as $\eta_{c}$ and $\eta_{b}$, as well as the mass spectrum and leptonic decay constants of gro...
[ { "created": "Tue, 25 Aug 2015 12:37:50 GMT", "version": "v1" }, { "created": "Fri, 22 Jan 2016 18:01:08 GMT", "version": "v2" }, { "created": "Fri, 14 Oct 2016 08:39:47 GMT", "version": "v3" } ]
2016-10-17
[ [ "Negash", "Hluf", "" ], [ "Bhatnagar", "Shashank", "" ] ]
In this work we calculate the mass spectrum, weak decay constants, two photon decay widths, and two gluon decay widths of ground (1S), and radially excited (2S,3S,...) states of pseudoscalar charmoniuum and bottomonium such as $\eta_{c}$ and $\eta_{b}$, as well as the mass spectrum and leptonic decay constants of groun...
1312.0051
Farinaldo Queiroz
Chris Kelso, P.R.D. Pinheiro, Farinaldo S. Queiroz, William Shepherd
The Muon Anomalous Magnetic Moment in the Reduced Minimal 3-3-1 Model
19 pages, 4 figures
Eur.Phys.J. C74 (2014) 2808
10.1140/epjc/s10052-014-2808-4
CETUP2013-023
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the muon anomalous magnetic moment $(g-2)_{\mu}$ in the context of the reduced minimal 3-3-1 model recently proposed in the literature. In particular, its spectrum contains a doubly charged scalar ($H^{\pm \pm}$) and gauge boson ($U^{\pm \pm}$), new singly charged vectors ($V^{\pm}$) and a $Z^{\prime}$ boson...
[ { "created": "Sat, 30 Nov 2013 02:45:37 GMT", "version": "v1" } ]
2014-06-20
[ [ "Kelso", "Chris", "" ], [ "Pinheiro", "P. R. D.", "" ], [ "Queiroz", "Farinaldo S.", "" ], [ "Shepherd", "William", "" ] ]
We study the muon anomalous magnetic moment $(g-2)_{\mu}$ in the context of the reduced minimal 3-3-1 model recently proposed in the literature. In particular, its spectrum contains a doubly charged scalar ($H^{\pm \pm}$) and gauge boson ($U^{\pm \pm}$), new singly charged vectors ($V^{\pm}$) and a $Z^{\prime}$ boson, ...
hep-ph/0608149
Kopylov
A. Kopylov, V. Petukhov
On the Mass Eigenstate Composition of the 8B Neutrinos from the Sun
13 pages, 1 figure, 1 table. Corrected version, published in JCAP04(2007)002
JCAP 0704:002,2007
10.1088/1475-7516/2007/04/002
null
hep-ph
null
The present data of gallium experiments provide indirectly the only experimental limit on the fraction of $\nu_2$ mass eigenstate for the $^8$B neutrinos from the Sun. However, if to use the experimental data alone, the fraction of $\nu_2$ and, consequently, $sin^2\theta_{sol}$ still is allowed to be varied within a ...
[ { "created": "Mon, 14 Aug 2006 06:16:30 GMT", "version": "v1" }, { "created": "Wed, 8 Nov 2006 09:30:08 GMT", "version": "v2" }, { "created": "Tue, 21 Nov 2006 10:17:06 GMT", "version": "v3" }, { "created": "Thu, 19 Apr 2007 06:18:51 GMT", "version": "v4" } ]
2010-10-27
[ [ "Kopylov", "A.", "" ], [ "Petukhov", "V.", "" ] ]
The present data of gallium experiments provide indirectly the only experimental limit on the fraction of $\nu_2$ mass eigenstate for the $^8$B neutrinos from the Sun. However, if to use the experimental data alone, the fraction of $\nu_2$ and, consequently, $sin^2\theta_{sol}$ still is allowed to be varied within a ra...
2212.06509
Francisco Albergaria
Francisco Albergaria, Lu\'is Lavoura, Jorge C. Rom\~ao
Oblique corrections from triplet quarks
30 pages
JHEP 03, 031 (2023)
10.1007/JHEP03(2023)031
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We present general formulas for the oblique-correction parameters $S$, $T$, $U$, $V$, $W$, and $X$ in an extension of the Standard Model having arbitrary numbers of singlet, doublet, and triplet quarks with electric charges $-4/3$, $-1/3$, $2/3$, and $5/3$ that mix with the standard quarks of the same charge.
[ { "created": "Tue, 13 Dec 2022 11:47:41 GMT", "version": "v1" }, { "created": "Tue, 20 Dec 2022 17:17:13 GMT", "version": "v2" }, { "created": "Mon, 6 Feb 2023 18:38:13 GMT", "version": "v3" }, { "created": "Mon, 20 Feb 2023 12:41:55 GMT", "version": "v4" }, { "cr...
2023-03-13
[ [ "Albergaria", "Francisco", "" ], [ "Lavoura", "Luís", "" ], [ "Romão", "Jorge C.", "" ] ]
We present general formulas for the oblique-correction parameters $S$, $T$, $U$, $V$, $W$, and $X$ in an extension of the Standard Model having arbitrary numbers of singlet, doublet, and triplet quarks with electric charges $-4/3$, $-1/3$, $2/3$, and $5/3$ that mix with the standard quarks of the same charge.
hep-ph/0101036
Akihiro Nakamura
Shigenori Kagiyama, Akira Minaka, Akihiro Nakamura (Kagoshima Univ.)
Evolution of the quark-gluon and hadronic fluid with the compressible bag model
20+1 pages, LaTeX2e, 12 figures
null
null
Kagoshima HE-01-1
hep-ph
null
The evolution of matter produced in nucleus collisions is investigated in the frame work of the simplified fluid equation, where the compressible bag model is used as the equation of state for hadrons. It is shown that the quark-gluon phase is easily achieved in RHIC experiments, and that the typical structure of the...
[ { "created": "Thu, 4 Jan 2001 12:56:42 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kagiyama", "Shigenori", "", "Kagoshima Univ." ], [ "Minaka", "Akira", "", "Kagoshima Univ." ], [ "Nakamura", "Akihiro", "", "Kagoshima Univ." ] ]
The evolution of matter produced in nucleus collisions is investigated in the frame work of the simplified fluid equation, where the compressible bag model is used as the equation of state for hadrons. It is shown that the quark-gluon phase is easily achieved in RHIC experiments, and that the typical structure of the p...
1501.02020
Li-Gang Jin
Li-Gang Jin, Rui Tang, and Fei Zhang
A three-loop radiative neutrino mass model with dark matter
7 pages, 3 figures
Phys. Lett. B 741 (2015) 163
10.1016/j.physletb.2014.12.034
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a model that generates small neutrino masses at three-loop level due to the existence of Majorana fermionic dark matter, which is stabilized by a Z2 symmetry. The model predicts that the lightest neutrino is massless. We show a prototypical parameter choice allowed by relevant experimental data, which favo...
[ { "created": "Fri, 9 Jan 2015 02:46:39 GMT", "version": "v1" } ]
2018-05-09
[ [ "Jin", "Li-Gang", "" ], [ "Tang", "Rui", "" ], [ "Zhang", "Fei", "" ] ]
We present a model that generates small neutrino masses at three-loop level due to the existence of Majorana fermionic dark matter, which is stabilized by a Z2 symmetry. The model predicts that the lightest neutrino is massless. We show a prototypical parameter choice allowed by relevant experimental data, which favors...
0708.0647
Douglas Gingrich Mr.
Douglas M. Gingrich and Kevin Martell
Microcanonical treatment of black hole decay at the Large Hadron Collider
small additions and clarifications, format for J. Phys. G
J. Phys. G: Nucl. Part. Phys. 35 (2008) 035001
10.1088/0954-3899/35/3/035001
null
hep-ph
null
This study of corrections to the canonical picture of black hole decay in large extra dimensions examines the effects of back-reaction corrected and microcanonical emission at the LHC. We provide statistical interpretations of the different multiparticle number densities in terms of black hole decay to standard model...
[ { "created": "Sat, 4 Aug 2007 21:23:35 GMT", "version": "v1" }, { "created": "Sat, 15 Sep 2007 16:32:20 GMT", "version": "v2" }, { "created": "Mon, 24 Dec 2007 03:58:27 GMT", "version": "v3" } ]
2009-11-13
[ [ "Gingrich", "Douglas M.", "" ], [ "Martell", "Kevin", "" ] ]
This study of corrections to the canonical picture of black hole decay in large extra dimensions examines the effects of back-reaction corrected and microcanonical emission at the LHC. We provide statistical interpretations of the different multiparticle number densities in terms of black hole decay to standard model p...
hep-ph/9409275
David Spergel
Glenn D. Starkman (CITA) and David N. Spergel (Princeton)
A New Technique for Detecting Supersymmetric Dark Matter
6 pages plain tex
null
10.1103/PhysRevLett.74.2623
null
hep-ph astro-ph
null
We estimate the event rate for excitation of atomic transition by photino-like dark matter. For excitations of several eV, this event rate can exceed naive cross-section by many orders of magnitude. Although the event rate for these atomic excitation is smaller than that of nuclear recoil off of non-zero spin nuclei,...
[ { "created": "Fri, 9 Sep 1994 21:20:31 GMT", "version": "v1" }, { "created": "Tue, 13 Sep 1994 13:16:16 GMT", "version": "v2" } ]
2009-10-28
[ [ "Starkman", "Glenn D.", "", "CITA" ], [ "Spergel", "David N.", "", "Princeton" ] ]
We estimate the event rate for excitation of atomic transition by photino-like dark matter. For excitations of several eV, this event rate can exceed naive cross-section by many orders of magnitude. Although the event rate for these atomic excitation is smaller than that of nuclear recoil off of non-zero spin nuclei, t...
1106.2741
Alexei P. Martynenko
A.P. Martynenko (Samara State U. and Samara State Aerospace U.), A.M. Trunin (Samara State Aerospace U.)
Relativistic description of the double P-wave charmonium production in e^+e^- annihilation
15 pages, 1 figure
null
null
SSU-HEP-11/05
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
On the basis of perturbative QCD and the relativistic quark model we calculate relativistic and bound state corrections in the production processes of a pair of P-wave charmonium states. Relativistic factors in the production amplitude connected with the relative motion of heavy quarks and the transformation law of t...
[ { "created": "Tue, 14 Jun 2011 15:23:22 GMT", "version": "v1" }, { "created": "Wed, 29 Jun 2011 12:57:51 GMT", "version": "v2" }, { "created": "Wed, 10 Aug 2011 11:13:28 GMT", "version": "v3" } ]
2011-08-11
[ [ "Martynenko", "A. P.", "", "Samara State U. and Samara State Aerospace U." ], [ "Trunin", "A. M.", "", "Samara State Aerospace U." ] ]
On the basis of perturbative QCD and the relativistic quark model we calculate relativistic and bound state corrections in the production processes of a pair of P-wave charmonium states. Relativistic factors in the production amplitude connected with the relative motion of heavy quarks and the transformation law of the...
2304.11573
Saurabh D. Rindani
Kumar Rao, Saurabh D. Rindani, Priyanka Sarmah and Balbeer Singh
Polarized $Z$ cross sections in Higgsstrahlung for the determination of anomalous $ZZH$ couplings
This is a shorter version of arXiv:2202.10215v1. This shorter version is published in Phys. Lett. B
Phys. Lett. B 840 (2023) 137847
10.1016/j.physletb.2023.137847
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
The production of a Higgs boson in association with a $Z$ at an electron-positron collider is one of the cleanest methods for the measurement of the couplings of the Higgs boson. In view of the large production cross section at energies a little above the threshold, it seems feasible to make a more detailed study of ...
[ { "created": "Sun, 23 Apr 2023 08:10:26 GMT", "version": "v1" } ]
2023-04-28
[ [ "Rao", "Kumar", "" ], [ "Rindani", "Saurabh D.", "" ], [ "Sarmah", "Priyanka", "" ], [ "Singh", "Balbeer", "" ] ]
The production of a Higgs boson in association with a $Z$ at an electron-positron collider is one of the cleanest methods for the measurement of the couplings of the Higgs boson. In view of the large production cross section at energies a little above the threshold, it seems feasible to make a more detailed study of th...
hep-ph/9803348
Eric C. Martell
David Bowser-Chao, Tom D. Imbo, B. Alex King and Eric C. Martell
Lepto-mesons, Leptoquarkonium and the QCD Potential
12 pages, 1 figure, 3 tables, plain TeX, requires harvmac. References updated and minor clarifications made. To appear in Physics Letters B
Phys.Lett. B432 (1998) 167-174
10.1016/S0370-2693(98)00636-4
UICHEP-TH/97-13
hep-ph hep-ex
null
We consider bound states of heavy leptoquark-antiquark pairs (lepto-mesons) as well as leptoquark-antileptoquark pairs (leptoquarkonium). Unlike the situation for top quarks, leptoquarks (if they exist) may live long enough for these hadrons to form. We study the spectra and decay widths of these states in the contex...
[ { "created": "Sat, 14 Mar 1998 00:15:41 GMT", "version": "v1" }, { "created": "Wed, 18 Mar 1998 19:29:22 GMT", "version": "v2" }, { "created": "Thu, 19 Mar 1998 17:10:58 GMT", "version": "v3" }, { "created": "Mon, 18 May 1998 20:34:41 GMT", "version": "v4" } ]
2009-10-31
[ [ "Bowser-Chao", "David", "" ], [ "Imbo", "Tom D.", "" ], [ "King", "B. Alex", "" ], [ "Martell", "Eric C.", "" ] ]
We consider bound states of heavy leptoquark-antiquark pairs (lepto-mesons) as well as leptoquark-antileptoquark pairs (leptoquarkonium). Unlike the situation for top quarks, leptoquarks (if they exist) may live long enough for these hadrons to form. We study the spectra and decay widths of these states in the context ...
0711.1075
Olga Mena Requejo
Andreas Jansson, Olga Mena, Stephen Parke and Niki Saoulidou
Combining CPT-conjugate Neutrino channels at Fermilab
21 pages, 9 figures
Phys.Rev.D78:053002,2008
10.1103/PhysRevD.78.053002
FERMILAB-PUB-07-456-APC-E-T, ROMA-TH-1458
hep-ph
null
We explore an alternative strategy to determine the neutrino mass hierarchy by making use of possible future neutrino facilities at Fermilab. Here, we use CPT-conjugate neutrino channels, exploiting a nu_mu beam from the NuMI beamline and a barnu_e beam from a betabeam experimental setup. Both experiments are perform...
[ { "created": "Wed, 7 Nov 2007 13:12:14 GMT", "version": "v1" } ]
2008-12-18
[ [ "Jansson", "Andreas", "" ], [ "Mena", "Olga", "" ], [ "Parke", "Stephen", "" ], [ "Saoulidou", "Niki", "" ] ]
We explore an alternative strategy to determine the neutrino mass hierarchy by making use of possible future neutrino facilities at Fermilab. Here, we use CPT-conjugate neutrino channels, exploiting a nu_mu beam from the NuMI beamline and a barnu_e beam from a betabeam experimental setup. Both experiments are performed...
1206.2632
Peter Schweitzer
Manuel Mai, Peter Schweitzer
Energy momentum tensor, stability, and the D-term of Q-balls
18 pages, 12 figures
Phys. Rev. D 86, 076001 (2012)
10.1103/PhysRevD.86.076001
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the energy-momentum tensor of stable, meta-stable and unstable Q-balls in scalar field theories with U(1) symmetry. We calculate properties such as charge, mass, mean square radii and the constant d1 ("D-term") as functions of the phase space angular velocity omega. We discuss the limits when omega approache...
[ { "created": "Tue, 12 Jun 2012 19:48:40 GMT", "version": "v1" } ]
2012-10-03
[ [ "Mai", "Manuel", "" ], [ "Schweitzer", "Peter", "" ] ]
We study the energy-momentum tensor of stable, meta-stable and unstable Q-balls in scalar field theories with U(1) symmetry. We calculate properties such as charge, mass, mean square radii and the constant d1 ("D-term") as functions of the phase space angular velocity omega. We discuss the limits when omega approaches ...
hep-ph/9608407
Andrzej Czarnecki
Andrzej Czarnecki and Vladimir A. Smirnov
Threshold behavior of Feynman diagrams: the master two-loop propagator
Minor additions; to appear in Physics Letters B
Phys.Lett. B394 (1997) 211-217
10.1016/S0370-2693(96)01698-X
TTP96-32
hep-ph
null
An asymptotic expansion of the two-loop two-point ``master'' diagram with two masses $m$ and $M$, on the mass shell $Q^2=M^2$, is presented. The treatment of the non-analytical terms arising in the expansion around the branching point is discussed. Some details of the calculation of a new class of two-loop integrals ...
[ { "created": "Thu, 22 Aug 1996 10:38:34 GMT", "version": "v1" }, { "created": "Wed, 8 Jan 1997 16:22:29 GMT", "version": "v2" } ]
2009-10-28
[ [ "Czarnecki", "Andrzej", "" ], [ "Smirnov", "Vladimir A.", "" ] ]
An asymptotic expansion of the two-loop two-point ``master'' diagram with two masses $m$ and $M$, on the mass shell $Q^2=M^2$, is presented. The treatment of the non-analytical terms arising in the expansion around the branching point is discussed. Some details of the calculation of a new class of two-loop integrals ar...
0711.0448
Arman Esmaili
Arman Esmaili and Yasaman Farzan
A new class of invariants in the lepton sector
19 pages, Version appeared in Nuclear Physics B
Nucl.Phys.B811:98-108,2009
10.1016/j.nuclphysb.2008.11.013
IPM/P-2007/067
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We construct a new set of combinations from the mass matrices of the charged leptons and neutrinos that are invariant under basis transformation, hereafter {\it the} invariants. We use these invariants to study various symmetries and neutrino mass textures in a basis independent way. In particular, we show that by us...
[ { "created": "Sat, 3 Nov 2007 14:00:02 GMT", "version": "v1" }, { "created": "Sun, 18 Jan 2009 12:15:26 GMT", "version": "v2" } ]
2009-02-02
[ [ "Esmaili", "Arman", "" ], [ "Farzan", "Yasaman", "" ] ]
We construct a new set of combinations from the mass matrices of the charged leptons and neutrinos that are invariant under basis transformation, hereafter {\it the} invariants. We use these invariants to study various symmetries and neutrino mass textures in a basis independent way. In particular, we show that by usin...
hep-ph/0506230
Matteo Beccaria
M. Beccaria, F.M. Renard, and C. Verzegnassi
Weak Interaction Sum Rules for Polarized top-antitop Production at LHC
13 pages, 3 figures, local report number added
Phys.Rev.D72:093001,2005
10.1103/PhysRevD.72.093001
PM/05-20
hep-ph
null
We consider two polarization asymmetries in the process of top-antitop production at LHC. We show that the theoretical predictions for these two quantities, at the strong and electroweak partonic one-loop level, are free of QCD and QED effects. At this perturbative level we derive two sum rules, that relate measurabl...
[ { "created": "Thu, 23 Jun 2005 11:37:11 GMT", "version": "v1" }, { "created": "Fri, 24 Jun 2005 10:02:28 GMT", "version": "v2" } ]
2008-11-26
[ [ "Beccaria", "M.", "" ], [ "Renard", "F. M.", "" ], [ "Verzegnassi", "C.", "" ] ]
We consider two polarization asymmetries in the process of top-antitop production at LHC. We show that the theoretical predictions for these two quantities, at the strong and electroweak partonic one-loop level, are free of QCD and QED effects. At this perturbative level we derive two sum rules, that relate measurable ...
hep-ph/0207300
Fridger Schrempp
F. Schrempp (DESY) and A. Utermann (DESY)
QCD Instantons and High-Energy Diffractive Scattering
13 pages, 2 figures, typos corrected, comments added; version as submitted to and appearing in Phys. Lett. B
Phys.Lett. B543 (2002) 197-207
10.1016/S0370-2693(02)02458-9
DESY 02-094
hep-ph
null
We pursue the intriguing possibility that larger-size instantons build up diffractive scattering, with the marked instanton-size scale <rho> approximately 0.5 fm being reflected in the conspicuous ``geometrization'' of soft QCD. As an explicit step in this direction, the known instanton-induced cross sections in deep...
[ { "created": "Wed, 24 Jul 2002 19:21:48 GMT", "version": "v1" }, { "created": "Tue, 20 Aug 2002 16:00:55 GMT", "version": "v2" } ]
2010-04-05
[ [ "Schrempp", "F.", "", "DESY" ], [ "Utermann", "A.", "", "DESY" ] ]
We pursue the intriguing possibility that larger-size instantons build up diffractive scattering, with the marked instanton-size scale <rho> approximately 0.5 fm being reflected in the conspicuous ``geometrization'' of soft QCD. As an explicit step in this direction, the known instanton-induced cross sections in deep-i...
1801.04760
Matteo Rinaldi
Matteo Rinaldi and Federico Alberto Ceccopieri
Hadronic structure from double parton scattering
5 pages, 1 figure. References added and figure updated. Referee suggestions implemented. Published in PRD rapid communication
Phys. Rev. D 97, 071501 (2018)
10.1103/PhysRevD.97.071501
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the present paper we consider the so-called effective cross section, a quantity which encodes the experimental knowledge on double parton scattering in hadronic collisions that has been accomulated so far. We show that the effective cross section, under some assumptions close to those adopted in its experimental e...
[ { "created": "Mon, 15 Jan 2018 12:01:13 GMT", "version": "v1" }, { "created": "Wed, 17 Jan 2018 13:38:50 GMT", "version": "v2" }, { "created": "Mon, 30 Apr 2018 13:45:42 GMT", "version": "v3" } ]
2018-05-02
[ [ "Rinaldi", "Matteo", "" ], [ "Ceccopieri", "Federico Alberto", "" ] ]
In the present paper we consider the so-called effective cross section, a quantity which encodes the experimental knowledge on double parton scattering in hadronic collisions that has been accomulated so far. We show that the effective cross section, under some assumptions close to those adopted in its experimental ext...
0711.0161
Guido Altarelli
Guido Altarelli
Lectures on Models of Neutrino Masses and Mixings
Two lectures given at the Summer Institute 2007, 3-10 August 2007, Fuji-Yoshida, Japan 27 pages, 3 figures
null
null
RM3-TH/07-17, CERN-PH-TH/2007-213
hep-ph
null
We present a concise review of models for neutrino masses and mixings with particular emphasis on recent developments and current problems. We discuss in detail attempts at reproducing approximate tri-bimaximal mixing starting from discrete symmetry groups, notably A4. We discuss the problems encountered when trying ...
[ { "created": "Thu, 1 Nov 2007 16:54:45 GMT", "version": "v1" } ]
2007-11-02
[ [ "Altarelli", "Guido", "" ] ]
We present a concise review of models for neutrino masses and mixings with particular emphasis on recent developments and current problems. We discuss in detail attempts at reproducing approximate tri-bimaximal mixing starting from discrete symmetry groups, notably A4. We discuss the problems encountered when trying to...
2103.10217
Sergei Chekanov V.
S.V. Chekanov and S. Darmora and W. Islam and C.E.M. Wagner and J. Zhang
Model-independent searches for new physics in multi-body invariant masses
17 pages, 10 figures, contribution to Snowmass 2021
Universe, Volume 7, Issue 9 (2021)
10.3390/universe7090333
ANL-HEP-166648
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Model-independent searches for physics beyond the Standard Model typically focus on invariant masses of two objects (jets, leptons or photons). In this study we explore opportunities for similar model-agnostic searches in multi-body invariant masses. In particular, we focus on the situations when new physics can be o...
[ { "created": "Thu, 18 Mar 2021 12:41:53 GMT", "version": "v1" }, { "created": "Wed, 8 Sep 2021 16:30:12 GMT", "version": "v2" } ]
2021-09-09
[ [ "Chekanov", "S. V.", "" ], [ "Darmora", "S.", "" ], [ "Islam", "W.", "" ], [ "Wagner", "C. E. M.", "" ], [ "Zhang", "J.", "" ] ]
Model-independent searches for physics beyond the Standard Model typically focus on invariant masses of two objects (jets, leptons or photons). In this study we explore opportunities for similar model-agnostic searches in multi-body invariant masses. In particular, we focus on the situations when new physics can be obs...
2310.03680
Silvano Simula
G. Martinelli, S. Simula and L. Vittorio
Updates on the determination of $\vert V_{cb} \vert$, $R(D^{*})$ and $\vert V_{ub} \vert/\vert V_{cb} \vert$
28 pages, 9 figures, 6 tables. Recent update of the HPQCD results for the semileptonic $B \to D^*$ form factors included in the lattice inputs for the bin-per-bin analyses. Figs. 1-2,4,6-8 and Tables 1-4 updated. Main conclusions unchanged. Covariance matrices for various theoretical observables added as append...
null
null
null
hep-ph hep-ex hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present an updated determination of the values of $\vert V_{cb} \vert$, $R(D^*)$ and $\vert V_{ub} \vert/\vert V_{cb} \vert$ based on the new data on semileptonic $B \to D^* \ell \nu_\ell$ decays by the Belle and Belle-II Collaborations and on the recent theoretical progress in the calculation of the form factors ...
[ { "created": "Thu, 5 Oct 2023 16:58:47 GMT", "version": "v1" }, { "created": "Wed, 22 Nov 2023 13:49:27 GMT", "version": "v2" }, { "created": "Mon, 25 Mar 2024 10:35:42 GMT", "version": "v3" } ]
2024-03-26
[ [ "Martinelli", "G.", "" ], [ "Simula", "S.", "" ], [ "Vittorio", "L.", "" ] ]
We present an updated determination of the values of $\vert V_{cb} \vert$, $R(D^*)$ and $\vert V_{ub} \vert/\vert V_{cb} \vert$ based on the new data on semileptonic $B \to D^* \ell \nu_\ell$ decays by the Belle and Belle-II Collaborations and on the recent theoretical progress in the calculation of the form factors re...
hep-ph/0212102
Valery G. Serbo
G.L. Kotkin, V.G. Serbo (Novosibirsk State University, Russia)
Once Again about Beam-Size or MD-Effect at Colliding Beams
16 Latex page
null
null
null
hep-ph
null
For several processes at colliding beams, macroscopically large impact parameters give an essential contribution to the standard cross section. These impact parameters may be much larger than the transverse sizes of the colliding bunches. In that case, the standard calculations have to be essentially modify. The corr...
[ { "created": "Fri, 6 Dec 2002 13:54:27 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kotkin", "G. L.", "", "Novosibirsk State University, Russia" ], [ "Serbo", "V. G.", "", "Novosibirsk State University, Russia" ] ]
For several processes at colliding beams, macroscopically large impact parameters give an essential contribution to the standard cross section. These impact parameters may be much larger than the transverse sizes of the colliding bunches. In that case, the standard calculations have to be essentially modify. The corres...
hep-ph/9907416
Stefan Scherer
S. Scherer (Institut f. Kernphysik, Mainz, Germany)
Generalized dipole polarizabilities of the pion
11 pages, Latex2e, 5 postscript figures, uses ws-p8-50x6-00.cls, invited talk at the 2nd International Conference on Perspectives in Hadronic Physics, 10 - 14 May 1999, Trieste, Italy
null
null
MKPH-T-99-19
hep-ph hep-ex nucl-th
null
We discuss the virtual Compton scattering amplitude $\gamma^\ast+\pi\to \gamma+\pi$ which enters the reaction $\pi^-+e^-\to\pi^-+e^-+\gamma$. The low-energy scattering amplitude is divided into a model-independent part, involving only the electromagnetic form factor, and a residual part which contains structure infor...
[ { "created": "Mon, 19 Jul 1999 16:26:43 GMT", "version": "v1" } ]
2007-05-23
[ [ "Scherer", "S.", "", "Institut f. Kernphysik, Mainz, Germany" ] ]
We discuss the virtual Compton scattering amplitude $\gamma^\ast+\pi\to \gamma+\pi$ which enters the reaction $\pi^-+e^-\to\pi^-+e^-+\gamma$. The low-energy scattering amplitude is divided into a model-independent part, involving only the electromagnetic form factor, and a residual part which contains structure informa...
0809.0582
Josip Trampetic Dr.
Raul Horvat, Peter Minkowski and Josip Trampetic
Dark consequences from light neutrino condensations
5 pages; version to appear in PLB
Phys.Lett.B671:51-54,2009
10.1016/j.physletb.2008.11.055
null
hep-ph astro-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we discuss light neutrino dipole moments, computed in the neutrino-mass extended standard model (SM), as a possible source for neutrino condensates which may cause cosmological constant observed today.
[ { "created": "Wed, 3 Sep 2008 09:31:32 GMT", "version": "v1" }, { "created": "Mon, 24 Nov 2008 10:57:37 GMT", "version": "v2" } ]
2009-01-16
[ [ "Horvat", "Raul", "" ], [ "Minkowski", "Peter", "" ], [ "Trampetic", "Josip", "" ] ]
In this paper we discuss light neutrino dipole moments, computed in the neutrino-mass extended standard model (SM), as a possible source for neutrino condensates which may cause cosmological constant observed today.
hep-ph/0312264
Dominik Stockinger
S. Heinemeyer, D. St\"ockinger, G. Weiglein
Two-Loop SUSY Corrections to the Anomalous Magnetic Moment of the Muon
18 pages, 7 figures, version to be published in NPB
Nucl.Phys. B690 (2004) 62-80
10.1016/j.nuclphysb.2004.04.017
CERN-TH/2003-309, DCPT/03/148, DESY-03-153, IPPP/03/74, LMU 28/03
hep-ph
null
We calculate supersymmetric two-loop corrections to the anomalous magnetic moment of the muon, consisting of diagrams with a closed scalar fermion or fermion loop and gauge and/or Higgs boson exchange. We discuss the numerical impact of each subclass of diagrams and determine the leading contributions. We analyze in ...
[ { "created": "Thu, 18 Dec 2003 19:11:26 GMT", "version": "v1" }, { "created": "Tue, 25 May 2004 16:41:21 GMT", "version": "v2" } ]
2010-04-05
[ [ "Heinemeyer", "S.", "" ], [ "Stöckinger", "D.", "" ], [ "Weiglein", "G.", "" ] ]
We calculate supersymmetric two-loop corrections to the anomalous magnetic moment of the muon, consisting of diagrams with a closed scalar fermion or fermion loop and gauge and/or Higgs boson exchange. We discuss the numerical impact of each subclass of diagrams and determine the leading contributions. We analyze in de...
2402.07195
Fu-Lai Wang
Bao-Jun Lai, Fu-Lai Wang, and Xiang Liu
Investigating the M1 radiative decay behaviors and the magnetic moments of the predicted triple-charm molecular-type pentaquarks
10 pages, 2 figure, and 4 tables
Phys. Rev. D 109, 054036 (2024)
10.1103/PhysRevD.109.054036
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, we systematically study the electromagnetic properties including the M1 radiative decay widths and the magnetic moments of the isoscalar $\Xi_{c c} D^{(*)}$, $\Xi_{cc}D_{1}$, and $\Xi_{cc}D_{2}^{*}$ triple-charm molecular-type pentaquark candidates, where we adopt the constituent quark model and conside...
[ { "created": "Sun, 11 Feb 2024 13:15:13 GMT", "version": "v1" }, { "created": "Sun, 10 Mar 2024 06:50:47 GMT", "version": "v2" }, { "created": "Wed, 27 Mar 2024 02:15:05 GMT", "version": "v3" } ]
2024-03-28
[ [ "Lai", "Bao-Jun", "" ], [ "Wang", "Fu-Lai", "" ], [ "Liu", "Xiang", "" ] ]
In this work, we systematically study the electromagnetic properties including the M1 radiative decay widths and the magnetic moments of the isoscalar $\Xi_{c c} D^{(*)}$, $\Xi_{cc}D_{1}$, and $\Xi_{cc}D_{2}^{*}$ triple-charm molecular-type pentaquark candidates, where we adopt the constituent quark model and consider ...
hep-ph/9306213
Nir Polonsky-3C13-949
Nir Polonsky
Coupling Constant and Yukawa Coupling Unifications: Uncertainties and Constraints
(talk presented at the SUSY-93 Workshop), 7 pages + 2 figures (figures are available upon request), LaTex, UPR-0571T
null
null
null
hep-ph
null
The status of coupling constant unification (with and without a unification of Yukawa couplings) is discussed. Uncertainties associated with the input coupling constants, $m_{b}$ and $m_{t}$, threshold corrections at the low and high scale, and possible nonrenormalizable operators are described and a discrepancy betw...
[ { "created": "Wed, 2 Jun 1993 16:06:16 GMT", "version": "v1" } ]
2007-05-23
[ [ "Polonsky", "Nir", "" ] ]
The status of coupling constant unification (with and without a unification of Yukawa couplings) is discussed. Uncertainties associated with the input coupling constants, $m_{b}$ and $m_{t}$, threshold corrections at the low and high scale, and possible nonrenormalizable operators are described and a discrepancy betwee...
1805.05059
Jin-Huan Sheng
Jin-Huan Sheng, Ru-Min Wang, Ya-Dong Yang
Effect of scalar leptoquarks on the lepton flavor violation decays of B meson
16 pages;5 figures Appendix; publication in International Journal of Theoretical Physics
null
10.1007/s10773-018-3948-3
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Leptoquarks have been suggested to solve a variety of discrepancies between the expected and observed phenomenon. In this paper, we investigate the effect of scalar leptoquarks on the lepton flavor violating B meson rare decays which involve the quark level transition $\bar{b} \to \bar{s} \ell^-_i \ell^+_j(i \neq j)$...
[ { "created": "Mon, 14 May 2018 08:25:27 GMT", "version": "v1" }, { "created": "Wed, 9 Jan 2019 03:38:08 GMT", "version": "v2" } ]
2019-01-10
[ [ "Sheng", "Jin-Huan", "" ], [ "Wang", "Ru-Min", "" ], [ "Yang", "Ya-Dong", "" ] ]
Leptoquarks have been suggested to solve a variety of discrepancies between the expected and observed phenomenon. In this paper, we investigate the effect of scalar leptoquarks on the lepton flavor violating B meson rare decays which involve the quark level transition $\bar{b} \to \bar{s} \ell^-_i \ell^+_j(i \neq j)$. ...
2201.08253
Menglin Du Dr.
Meng-Lin Du, Miguel Albaladejo, Feng-Kun Guo, and Juan Nieves
A combined analysis of the $Z_c(3900)$ and the $Z_{cs}(3985)$ exotic states
27 pages, 9 figures, and 4 tables, version published in physical review D
Phys.Rev.D 105 (2022) 074018
10.1103/PhysRevD.105.074018
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We have performed a combined analysis of the BESIII data for both the $Z_c(3900)$ and $Z_{cs}(3985)$ structures, assuming that the latter is an SU(3) flavor partner of the former one. We have improved on the previous analysis of Albaladejo $et$ $al.$ [Phys. Lett. B 755, 337 (2016)] by computing the amplitude for the ...
[ { "created": "Thu, 20 Jan 2022 16:00:24 GMT", "version": "v1" }, { "created": "Mon, 2 May 2022 13:56:12 GMT", "version": "v2" } ]
2022-05-05
[ [ "Du", "Meng-Lin", "" ], [ "Albaladejo", "Miguel", "" ], [ "Guo", "Feng-Kun", "" ], [ "Nieves", "Juan", "" ] ]
We have performed a combined analysis of the BESIII data for both the $Z_c(3900)$ and $Z_{cs}(3985)$ structures, assuming that the latter is an SU(3) flavor partner of the former one. We have improved on the previous analysis of Albaladejo $et$ $al.$ [Phys. Lett. B 755, 337 (2016)] by computing the amplitude for the $D...
1712.09873
Sebastian Baum
Sebastian Baum, Marcela Carena, Nausheen R. Shah, Carlos E. M. Wagner
Higgs Portals for Thermal Dark Matter - EFT Perspectives and the NMSSM -
42 pages, 14 figures. v2: added references, published in JHEP
JHEP04(2018)069
10.1007/JHEP04(2018)069
NORDITA-2017-130, FERMILAB-PUB-17-611-T, EFI-17-25, WSU-HEP-1715
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze a low energy effective model of Dark Matter in which the thermal relic density is provided by a singlet Majorana fermion which interacts with the Higgs fields via higher dimensional operators. Direct detection signatures may be reduced if blind spot solutions exist, which naturally appear in models with ex...
[ { "created": "Thu, 28 Dec 2017 14:32:15 GMT", "version": "v1" }, { "created": "Tue, 17 Apr 2018 08:50:04 GMT", "version": "v2" } ]
2018-04-18
[ [ "Baum", "Sebastian", "" ], [ "Carena", "Marcela", "" ], [ "Shah", "Nausheen R.", "" ], [ "Wagner", "Carlos E. M.", "" ] ]
We analyze a low energy effective model of Dark Matter in which the thermal relic density is provided by a singlet Majorana fermion which interacts with the Higgs fields via higher dimensional operators. Direct detection signatures may be reduced if blind spot solutions exist, which naturally appear in models with exte...
hep-ph/0301055
Junegone Chay
Junegone Chay and Chul Kim
Factorization of B decays into two light mesons in soft-collinear effective theory
5 pages, 3 figures. Major revision. We concentrate on the factorization properties in nonleptonic B decays
Phys.Rev. D68 (2003) 071502
10.1103/PhysRevD.68.071502
KUPT-03-01
hep-ph
null
We show that the amplitudes for B decays into two light mesons at leading order in soft-collinear effective theory are factorized to all orders in alpha_s. We construct gauge-invariant four-quark operators by employing the effective theories SCET_I for sqrt{m_b \Lambda} <\mu<m_b, and SCET_II for \mu <sqrt{m_b \Lambda...
[ { "created": "Thu, 9 Jan 2003 09:31:47 GMT", "version": "v1" }, { "created": "Thu, 24 Jul 2003 05:39:38 GMT", "version": "v2" } ]
2009-11-10
[ [ "Chay", "Junegone", "" ], [ "Kim", "Chul", "" ] ]
We show that the amplitudes for B decays into two light mesons at leading order in soft-collinear effective theory are factorized to all orders in alpha_s. We construct gauge-invariant four-quark operators by employing the effective theories SCET_I for sqrt{m_b \Lambda} <\mu<m_b, and SCET_II for \mu <sqrt{m_b \Lambda} ...
hep-ph/0202211
Tomohiro Matsuda
Tomohiro Matsuda
Affleck-Dine baryogenesis in the local domain
18pages, latex2e, to appear in PRD
Phys.Rev. D65 (2002) 103502
10.1103/PhysRevD.65.103502
null
hep-ph astro-ph hep-th
null
For Affleck-Dine baryogenesis to proceed, there must have been two types of phase transitions. One is the destabilized-stabilized phase transition of the flat direction, which is in general induced by the Hubble parameter. The other is the phase transition related to the A-term, which induces the misalignment of the ...
[ { "created": "Fri, 22 Feb 2002 13:20:45 GMT", "version": "v1" }, { "created": "Tue, 5 Mar 2002 07:33:33 GMT", "version": "v2" } ]
2016-09-06
[ [ "Matsuda", "Tomohiro", "" ] ]
For Affleck-Dine baryogenesis to proceed, there must have been two types of phase transitions. One is the destabilized-stabilized phase transition of the flat direction, which is in general induced by the Hubble parameter. The other is the phase transition related to the A-term, which induces the misalignment of the re...
1811.10586
Alejandro Correa L\'opez
Alejandro Correa L\'opez
Electroweak phase transition in the scotogenic model
5 pages, LaTeX, 6 PDF figures. Invited talk at PIC2018: XXXVIII International Symposium on Physics in Collision, Bogot\'a, Colombia, 2018
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work we study the behavior of the effective scalar potential at zero and finite temperature of the scotogenic model. In particular, we analyze the impact of the Yukawa couplings associated to the right--handed neutrinos on the electroweak phase transition.
[ { "created": "Mon, 26 Nov 2018 18:42:30 GMT", "version": "v1" } ]
2018-11-27
[ [ "López", "Alejandro Correa", "" ] ]
In this work we study the behavior of the effective scalar potential at zero and finite temperature of the scotogenic model. In particular, we analyze the impact of the Yukawa couplings associated to the right--handed neutrinos on the electroweak phase transition.
2303.17433
Patrick Foldenauer
Patrick Foldenauer
On Consistent Kinetic Mixing and the Higgs Low-Energy Theorems
8 pages, 3 figures, Contribution to the proceedings of 8th Symposium on Prospects in the Physics of Discrete Symmetries - DISCRETE 2022, 7-11 November 2022, Baden-Baden, Germany
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
A popular class of extensions of the Standard Model (SM) are models of a new Abelian gauge boson $X$, called $dark$ or $hidden\ photon$, that kinetically mixes with the SM photon. We revisit the matching procedure of kinetic mixing terms in the electroweak symmetric phase to the ones in the broken phase. Our central ...
[ { "created": "Thu, 30 Mar 2023 14:58:26 GMT", "version": "v1" } ]
2023-03-31
[ [ "Foldenauer", "Patrick", "" ] ]
A popular class of extensions of the Standard Model (SM) are models of a new Abelian gauge boson $X$, called $dark$ or $hidden\ photon$, that kinetically mixes with the SM photon. We revisit the matching procedure of kinetic mixing terms in the electroweak symmetric phase to the ones in the broken phase. Our central fi...
1310.2376
Grigory Rubtsov
A.D. Dolgov, S.L. Dubovsky, G.I. Rubtsov and I.I. Tkachev
Constraints on millicharged particles from Planck
4 pages, 3 figures
Phys. Rev. D 88, 117701 (2013)
10.1103/PhysRevD.88.117701
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We revisit cosmic microwave background (CMB) constraints on the abundance of millicharged particles based on the Planck data. The stringent limit Omega_{mcp}h^2 < 0.001 (95% CL) may be set using the CMB data alone if millicharged particles participate in the acoustic oscillations of baryon-photon plasma at the recomb...
[ { "created": "Wed, 9 Oct 2013 07:20:26 GMT", "version": "v1" } ]
2013-12-16
[ [ "Dolgov", "A. D.", "" ], [ "Dubovsky", "S. L.", "" ], [ "Rubtsov", "G. I.", "" ], [ "Tkachev", "I. I.", "" ] ]
We revisit cosmic microwave background (CMB) constraints on the abundance of millicharged particles based on the Planck data. The stringent limit Omega_{mcp}h^2 < 0.001 (95% CL) may be set using the CMB data alone if millicharged particles participate in the acoustic oscillations of baryon-photon plasma at the recombin...
hep-ph/0602079
Eduard De La Cruz Burelo
Homer A. Neal and Eduard De La Cruz Burelo
Hyperon Polarization in a Quark-Quark Scattering Model
17 pages, 9 figures
null
10.1063/1.2750818
null
hep-ph
null
A continuing mystery in particle physics is the large polarization observed in inclusive hyperon production in high energy p-p collisions. In this paper the authors advance the concept that the polarization effects can be accounted for in a simple model based on quarks becoming polarized in the direct q-q scattering ...
[ { "created": "Thu, 9 Feb 2006 11:54:54 GMT", "version": "v1" } ]
2009-11-11
[ [ "Neal", "Homer A.", "" ], [ "Burelo", "Eduard De La Cruz", "" ] ]
A continuing mystery in particle physics is the large polarization observed in inclusive hyperon production in high energy p-p collisions. In this paper the authors advance the concept that the polarization effects can be accounted for in a simple model based on quarks becoming polarized in the direct q-q scattering pr...
0903.0899
Boris Kayser
Boris Kayser
Are Neutrinos Their Own Antiparticles?
8 pages, pdf
J.Phys.Conf.Ser.173:012013,2009
10.1088/1742-6596/173/1/012013
FERMILAB-CONF-09-058-T
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explain the relationship between Majorana neutrinos, which are their own antiparticles, and Majorana neutrino masses. We point out that Majorana masses would make the neutrinos very distinctive particles, and explain why many theorists strongly suspect that neutrinos do have Majorana masses. The promising approach...
[ { "created": "Thu, 5 Mar 2009 03:04:47 GMT", "version": "v1" } ]
2009-07-24
[ [ "Kayser", "Boris", "" ] ]
We explain the relationship between Majorana neutrinos, which are their own antiparticles, and Majorana neutrino masses. We point out that Majorana masses would make the neutrinos very distinctive particles, and explain why many theorists strongly suspect that neutrinos do have Majorana masses. The promising approach t...
hep-ph/0209251
Neil Russell
Neil Russell
Investigating Lorentz and CPT Symmetry with Antihydrogen
10 pages, latex, invited talk at XIVth Rencontres de Blois on Matter-Antimatter Asymmetry, Chateau de Blois, France, 16-22 June 2002
null
null
null
hep-ph
null
This talk discusses theoretical aspects of tests of CPT and Lorentz Symmetry that will in principle be possible with trapped antihydrogen. The framework is the standard-model extension, which admits minuscule violations of CPT and Lorentz symmetry in a general manner without giving up other features of the standard m...
[ { "created": "Mon, 23 Sep 2002 02:47:26 GMT", "version": "v1" } ]
2007-05-23
[ [ "Russell", "Neil", "" ] ]
This talk discusses theoretical aspects of tests of CPT and Lorentz Symmetry that will in principle be possible with trapped antihydrogen. The framework is the standard-model extension, which admits minuscule violations of CPT and Lorentz symmetry in a general manner without giving up other features of the standard mod...
2008.03409
Yohan Mauricio Oviedo Torres
D. Cogollo, F. F. Freitas, C. A. de S. Pires, Yohan M. Oviedo-Torres, P. Vasconcelos
Deep learnig analysis of the inverse seesaw in a 3-3-1 model at the LHC
null
null
10.1016/j.physletb.2020.135931
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Inverse seesaw is a genuine TeV scale seesaw mechanism. In it active neutrinos with masses at eV scale requires lepton number be explicitly violated at keV scale and the existence of new physics, in the form of heavy neutrinos, at TeV scale. Therefore it is a phenomenologically viable seesaw mechanism since its signa...
[ { "created": "Sat, 8 Aug 2020 01:06:19 GMT", "version": "v1" } ]
2020-11-11
[ [ "Cogollo", "D.", "" ], [ "Freitas", "F. F.", "" ], [ "Pires", "C. A. de S.", "" ], [ "Oviedo-Torres", "Yohan M.", "" ], [ "Vasconcelos", "P.", "" ] ]
Inverse seesaw is a genuine TeV scale seesaw mechanism. In it active neutrinos with masses at eV scale requires lepton number be explicitly violated at keV scale and the existence of new physics, in the form of heavy neutrinos, at TeV scale. Therefore it is a phenomenologically viable seesaw mechanism since its signatu...
1902.02791
Zoltan Peli
Zolt\'an P\'eli and Zolt\'an Tr\'ocs\'anyi
Stability of the vacuum as constraint on $U$(1) extensions of the standard model
13 pages, 6 figures
null
null
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the standard model the running quartic coupling becomes negative during its renormalization group flow, which destabilizes the vacuum. We consider U(1) extensions of the standard model, with an extra complex scalar field and a Majorana-type neutrino Yukawa coupling. These additional couplings affect the renormaliz...
[ { "created": "Thu, 7 Feb 2019 19:00:02 GMT", "version": "v1" } ]
2019-02-11
[ [ "Péli", "Zoltán", "" ], [ "Trócsányi", "Zoltán", "" ] ]
In the standard model the running quartic coupling becomes negative during its renormalization group flow, which destabilizes the vacuum. We consider U(1) extensions of the standard model, with an extra complex scalar field and a Majorana-type neutrino Yukawa coupling. These additional couplings affect the renormalizat...
hep-ph/0011193
Kieran Holland
K. Holland and U.-J. Wiese
The Center symmetry and its spontaneous breakdown at high temperatures
LaTex, 35 pages, 6 figures, uses sprocl.sty. To be published in the Festschrift in honor of B.L. Ioffe, "At the Frontier of Particle Physics/ Handbook of QCD", edited by M. Shifman
null
10.1142/9789812810458_0040
BUTP-2000/34, MIT-CTP 3045
hep-ph hep-lat hep-th
null
We examine the role of the center Z(N) of the gauge group SU(N) in gauge theories. In this pedagogical article, we discuss, among other topics, the center symmetry and confinement and deconfinement in gauge theories and associated finite-temperature phase transitions. We also look at universal properties of domain wa...
[ { "created": "Wed, 15 Nov 2000 16:33:40 GMT", "version": "v1" } ]
2016-11-23
[ [ "Holland", "K.", "" ], [ "Wiese", "U. -J.", "" ] ]
We examine the role of the center Z(N) of the gauge group SU(N) in gauge theories. In this pedagogical article, we discuss, among other topics, the center symmetry and confinement and deconfinement in gauge theories and associated finite-temperature phase transitions. We also look at universal properties of domain wall...
1611.08609
Emanuele Roberto Nocera
Micha{\l} Czakon, Nathan P. Hartland, Alexander Mitov, Emanuele R. Nocera and Juan Rojo
Pinning down the large-x gluon with NNLO top-quark pair differential distributions
42 pages, 21 figures, 11 tables, this version match the version accepted for publication in JHEP
null
10.1007/JHEP04(2017)044
OUTP-16-15P, Nikhef/2016-046, Cavendish-HEP-16/17, Aachen-TTK-16-49
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Top-quark pair production at the LHC is directly sensitive to the gluon PDF at large x. While total cross-section data is already included in several PDF determinations, differential distributions are not, because the corresponding NNLO calculations have become available only recently. In this work we study the impac...
[ { "created": "Fri, 25 Nov 2016 21:00:06 GMT", "version": "v1" }, { "created": "Mon, 27 Mar 2017 12:23:35 GMT", "version": "v2" } ]
2017-04-26
[ [ "Czakon", "Michał", "" ], [ "Hartland", "Nathan P.", "" ], [ "Mitov", "Alexander", "" ], [ "Nocera", "Emanuele R.", "" ], [ "Rojo", "Juan", "" ] ]
Top-quark pair production at the LHC is directly sensitive to the gluon PDF at large x. While total cross-section data is already included in several PDF determinations, differential distributions are not, because the corresponding NNLO calculations have become available only recently. In this work we study the impact ...
1204.6471
Ilnur Gabdrakhmanov
I. R. Gabdrakhmanov, O. V. Teryaev
Analyticity and sum rules for photon GPDs
Version to appear in Physics Letters B
null
10.1016/j.physletb.2012.08.041
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The photon is explored as an object to test the applications of QCD to the perturbatively calculable collinear parton distributions. We investigate analytic properties of DVCS amplitudes and related sum rules of generalized parton distributions of the photon using as an input their earlier calculations in the leading...
[ { "created": "Sun, 29 Apr 2012 12:15:43 GMT", "version": "v1" }, { "created": "Wed, 2 May 2012 21:05:09 GMT", "version": "v2" }, { "created": "Mon, 7 May 2012 21:42:18 GMT", "version": "v3" }, { "created": "Thu, 14 Jun 2012 19:40:56 GMT", "version": "v4" }, { "cre...
2012-09-25
[ [ "Gabdrakhmanov", "I. R.", "" ], [ "Teryaev", "O. V.", "" ] ]
The photon is explored as an object to test the applications of QCD to the perturbatively calculable collinear parton distributions. We investigate analytic properties of DVCS amplitudes and related sum rules of generalized parton distributions of the photon using as an input their earlier calculations in the leading o...
hep-ph/0501145
Xuelei Wang
Xuelei Wang, Qiaoli Zhang, Qingpeng Qiao
Studying top quark decay into the polarized W-boson in the TC2 model
8 pages, 4 figures
Phys.Rev.D71:014035,2005
10.1103/PhysRevD.71.014035
null
hep-ph
null
We study the decay mode of top quark decaying into Wb in the TC2 model where the top quark is distinguished from other fermions by participating in a strong interaction. We find that the TC2 correction to the decay width $\Gamma (t \to b W) $ is generally several percent and maximum value can reach 8% for the current...
[ { "created": "Sun, 16 Jan 2005 13:24:06 GMT", "version": "v1" } ]
2011-03-23
[ [ "Wang", "Xuelei", "" ], [ "Zhang", "Qiaoli", "" ], [ "Qiao", "Qingpeng", "" ] ]
We study the decay mode of top quark decaying into Wb in the TC2 model where the top quark is distinguished from other fermions by participating in a strong interaction. We find that the TC2 correction to the decay width $\Gamma (t \to b W) $ is generally several percent and maximum value can reach 8% for the currently...
hep-ph/9907353
Michael R. Pennington
M.R. Pennington
Exclusive channels in $\gamma\gamma$ reactions: light at the end of the tunnel?
9 pages,8 figures. Invited introductory talk at Photon'99, Freiburg im Br., Germany, May 1999
Nucl.Phys.Proc.Suppl. 82 (2000) 291-299
10.1016/S0920-5632(00)00167-5
DTP-99/74
hep-ph
null
The physics that can be learnt by studying exclusive channels in two photon interactions is recalled. This serves as an introduction to the Exclusive Reaction session of Photon'99.
[ { "created": "Wed, 14 Jul 1999 16:51:54 GMT", "version": "v1" } ]
2009-10-31
[ [ "Pennington", "M. R.", "" ] ]
The physics that can be learnt by studying exclusive channels in two photon interactions is recalled. This serves as an introduction to the Exclusive Reaction session of Photon'99.
hep-ph/0205276
Jan Nemcik
J. Nemchik
Incoherent Production of Charmonia off Nuclei As a Good Tool for Study of Color Transparency
26 pages including 7 figures
Phys.Rev. C66 (2002) 045204
10.1103/PhysRevC.66.045204
null
hep-ph
null
Within a light-cone QCD formalism which incorporates color transparency (CT), coherence length (CL) effects and gluon shadowing (GS) we study electroproduction of charmonia off nuclei. In contrast to production of light vector mesons (rho^0, phi^0) when at small and medium energies CT and the onset of CL effects are ...
[ { "created": "Fri, 24 May 2002 10:58:33 GMT", "version": "v1" } ]
2009-11-07
[ [ "Nemchik", "J.", "" ] ]
Within a light-cone QCD formalism which incorporates color transparency (CT), coherence length (CL) effects and gluon shadowing (GS) we study electroproduction of charmonia off nuclei. In contrast to production of light vector mesons (rho^0, phi^0) when at small and medium energies CT and the onset of CL effects are no...
hep-ph/0203089
Vittorio Lubicz
E. Franco, V. Lubicz, F. Mescia and C. Tarantino
Lifetime Ratios of Beauty Hadrons at the Next-to-Leading Order in QCD
24 pages, 4 figures
Nucl.Phys. B633 (2002) 212-236
10.1016/S0550-3213(02)00262-6
RM3-TH/02-3, ROME1-1333/02, SHEP 02/04
hep-ph hep-lat
null
We compute the next-to-leading order QCD corrections to spectator effects in the lifetime ratios of beauty hadrons. With respect to previous calculations, we take into account the non vanishing value of the charm quark mass. We obtain the predictions tau(B+)/tau(Bd) = 1.06 +- 0.02, tau(Bs)/tau(Bd)= 1.00 +- 0.01 and t...
[ { "created": "Fri, 8 Mar 2002 17:15:58 GMT", "version": "v1" } ]
2009-11-07
[ [ "Franco", "E.", "" ], [ "Lubicz", "V.", "" ], [ "Mescia", "F.", "" ], [ "Tarantino", "C.", "" ] ]
We compute the next-to-leading order QCD corrections to spectator effects in the lifetime ratios of beauty hadrons. With respect to previous calculations, we take into account the non vanishing value of the charm quark mass. We obtain the predictions tau(B+)/tau(Bd) = 1.06 +- 0.02, tau(Bs)/tau(Bd)= 1.00 +- 0.01 and tau...
2308.14270
Junle Pei
Junle Pei, Xinchou Lou, Yaquan Fang, Jinfei Wu, and Manqi Ruan
Radiative Leptonic Decay of Heavy Quarkonia
16 pages, 6 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This study examines the properties of heavy quarkonia $X$ by treating them as bound states of $Q$ and $\bar{Q}$ at the LO level within the NRQCD framework, where $Q$ represents either a charm or a bottom quark. The branching ratios for the radiative leptonic decays $X\rightarrow \gamma l^{+} l^{-}$ are revisited and ...
[ { "created": "Mon, 28 Aug 2023 02:57:49 GMT", "version": "v1" }, { "created": "Thu, 18 Jul 2024 04:44:07 GMT", "version": "v2" } ]
2024-07-19
[ [ "Pei", "Junle", "" ], [ "Lou", "Xinchou", "" ], [ "Fang", "Yaquan", "" ], [ "Wu", "Jinfei", "" ], [ "Ruan", "Manqi", "" ] ]
This study examines the properties of heavy quarkonia $X$ by treating them as bound states of $Q$ and $\bar{Q}$ at the LO level within the NRQCD framework, where $Q$ represents either a charm or a bottom quark. The branching ratios for the radiative leptonic decays $X\rightarrow \gamma l^{+} l^{-}$ are revisited and th...
0808.2425
Philipp Kostka
Stefan Antusch, Mar Bastero-Gil, Koushik Dutta, Steve F. King and Philipp M. Kostka
Solving the $\eta$-Problem in Hybrid Inflation with Heisenberg Symmetry and Stabilized Modulus
27 pages, 4 figures; appendix and reference added; version published in JCAP
JCAP 0901:040,2009
10.1088/1475-7516/2009/01/040
CAFPE-103/08, MPP-2008-108, UGFT-233/08
hep-ph astro-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a class of models in which the $\eta$-problem of supersymmetric hybrid inflation is resolved using a Heisenberg symmetry, where the associated modulus field is stabilized and made heavy with the help of the large vacuum energy during inflation without any fine-tuning. The proposed class of models is well m...
[ { "created": "Mon, 18 Aug 2008 17:35:50 GMT", "version": "v1" }, { "created": "Tue, 27 Jan 2009 16:03:49 GMT", "version": "v2" } ]
2009-02-05
[ [ "Antusch", "Stefan", "" ], [ "Bastero-Gil", "Mar", "" ], [ "Dutta", "Koushik", "" ], [ "King", "Steve F.", "" ], [ "Kostka", "Philipp M.", "" ] ]
We propose a class of models in which the $\eta$-problem of supersymmetric hybrid inflation is resolved using a Heisenberg symmetry, where the associated modulus field is stabilized and made heavy with the help of the large vacuum energy during inflation without any fine-tuning. The proposed class of models is well mot...
1008.1323
Oleg Selyugin
O.V. Selyugin
Gravitation form-factors and spin asymmetries in hadron elastic scattering
6 pages, 6 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the framework of the model, where the scattering amplitude is determined by the first and second moments of the GPDs, the qualitative description of all existing experimental data at $\sqrt{s} \geq 52.8 $ GeV, including the Coulomb range and large momentum transfers, is obtained with only 4 free parameters. The sp...
[ { "created": "Sat, 7 Aug 2010 11:27:33 GMT", "version": "v1" } ]
2010-08-10
[ [ "Selyugin", "O. V.", "" ] ]
In the framework of the model, where the scattering amplitude is determined by the first and second moments of the GPDs, the qualitative description of all existing experimental data at $\sqrt{s} \geq 52.8 $ GeV, including the Coulomb range and large momentum transfers, is obtained with only 4 free parameters. The spin...
2111.04241
Sh\=an Hu\'ang
Shan Huang (for the LUXE Collaboration)
LUXE: A new experiment to study non-perturbative QED in electron-laser and photon-laser collisions
Conference proceedings for PANIC 2021 parallel talk on 5 Sep 2021, to be published in the Proceedings of Science; minor wording changes and adjustments
null
10.22323/1.380.0429
null
hep-ph hep-ex physics.ins-det physics.optics
http://creativecommons.org/licenses/by-nc-nd/4.0/
LUXE (Laser Und XFEL Experiment) is a new experiment in planning at DESY Hamburg using the electron beam of the European XFEL. LUXE is intended to study collisions between a high-intensity optical laser and 16.5 GeV electrons from the XFEL electron beam, as well as collisions between the optical laser and high-energy...
[ { "created": "Mon, 8 Nov 2021 02:34:48 GMT", "version": "v1" }, { "created": "Sun, 6 Mar 2022 19:54:24 GMT", "version": "v2" } ]
2022-03-16
[ [ "Huang", "Shan", "", "for the LUXE Collaboration" ] ]
LUXE (Laser Und XFEL Experiment) is a new experiment in planning at DESY Hamburg using the electron beam of the European XFEL. LUXE is intended to study collisions between a high-intensity optical laser and 16.5 GeV electrons from the XFEL electron beam, as well as collisions between the optical laser and high-energy s...
2406.00525
Pasquale Di Bari
Pasquale Di Bari
Majorana mass generation, gravitational waves and cosmological tensions
8 pages, 1 figure; talk given at EW Moriond 2024 (La Thuile, 24-31 March 2024)
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
A neutrino Majorana mass generation in the early universe might have left imprints in cosmological observables. It can source the production of a detectable stochastic background of primordial gravitational waves with a spectrum that combines a contribution from a first order phase transition production and from the ...
[ { "created": "Sat, 1 Jun 2024 18:25:00 GMT", "version": "v1" } ]
2024-06-04
[ [ "Di Bari", "Pasquale", "" ] ]
A neutrino Majorana mass generation in the early universe might have left imprints in cosmological observables. It can source the production of a detectable stochastic background of primordial gravitational waves with a spectrum that combines a contribution from a first order phase transition production and from the vi...
2310.03776
Scott Tezlaf
S. V. Tezlaf
Significance of the negative binomial distribution in multiplicity phenomena
18 pages, 3 figures. Physica Scripta (2023)
null
10.1088/1402-4896/acfead
null
hep-ph hep-th stat.ME
http://creativecommons.org/licenses/by-nc-nd/4.0/
The negative binomial distribution (NBD) has been theorized to express a scale-invariant property of many-body systems and has been consistently shown to outperform other statistical models in both describing the multiplicity of quantum-scale events in particle collision experiments and predicting the prevalence of c...
[ { "created": "Thu, 5 Oct 2023 09:37:38 GMT", "version": "v1" } ]
2023-10-09
[ [ "Tezlaf", "S. V.", "" ] ]
The negative binomial distribution (NBD) has been theorized to express a scale-invariant property of many-body systems and has been consistently shown to outperform other statistical models in both describing the multiplicity of quantum-scale events in particle collision experiments and predicting the prevalence of cos...
2011.03003
Daniel Elander
Daniel Elander, Michele Frigerio, Marc Knecht, Jean-Loic Kneur
Holographic models of composite Higgs in the Veneziano limit. Part I. Bosonic sector
Version published in JHEP. Additional discussion of the Veneziano limit and of the dilaton lightness
J. High Energ. Phys. 2021, 182 (2021)
10.1007/JHEP03(2021)182
null
hep-ph hep-lat hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study strongly-coupled, approximately scale-invariant gauge theories, which develop a mass gap in the infrared. We argue that a large number of fermion flavours is most suitable to provide an ultraviolet completion for the composite Higgs scenario. The holographic approach allows to describe the qualitative featur...
[ { "created": "Thu, 5 Nov 2020 17:57:39 GMT", "version": "v1" }, { "created": "Wed, 24 Mar 2021 12:44:35 GMT", "version": "v2" } ]
2021-03-25
[ [ "Elander", "Daniel", "" ], [ "Frigerio", "Michele", "" ], [ "Knecht", "Marc", "" ], [ "Kneur", "Jean-Loic", "" ] ]
We study strongly-coupled, approximately scale-invariant gauge theories, which develop a mass gap in the infrared. We argue that a large number of fermion flavours is most suitable to provide an ultraviolet completion for the composite Higgs scenario. The holographic approach allows to describe the qualitative features...
1308.5296
Tom Mertens
T. Mertens and P. Taels
Evolution of Light-Like Wilson Loops with a Self-Intersection in Loop Space
Correction of some small typos and small changes to the figures. To be submitted for publication to Phys Lett B
Phys.Lett. B727 2013 563-567
10.1016/j.physletb.2013.11.011
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recently, we proposed a general evolution equation for single quadrilateral Wilson loop on the light-cone. In present work, we study the energy evolution of a combination of two such loops that partially overlap or have a self-intersection. We show that, for a class of geometric variations, then evolution is consiste...
[ { "created": "Sat, 24 Aug 2013 04:46:44 GMT", "version": "v1" }, { "created": "Tue, 3 Sep 2013 20:39:28 GMT", "version": "v2" } ]
2014-01-14
[ [ "Mertens", "T.", "" ], [ "Taels", "P.", "" ] ]
Recently, we proposed a general evolution equation for single quadrilateral Wilson loop on the light-cone. In present work, we study the energy evolution of a combination of two such loops that partially overlap or have a self-intersection. We show that, for a class of geometric variations, then evolution is consistent...
1507.08795
Abhijit Bhattacharyya Prof.
Abhijit Bhattacharyya, Sanjay K. Ghosh, Rajarshi Ray, Kinkar Saha and Sudipa Upadhaya
Polyakov--Nambu--Jona-Lasinio model in finite volumes
null
Europhysics Letters, 116, 52001 (2016)
10.1209/0295-5075/116/52001
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the 2+1 flavor Polyakov loop enhanced Nambu--Jona-Lasinio model in a finite volume. The main objective is to check the volume scaling of thermodynamic observables for various temperatures and chemical potentials. We observe the possible violation of the scaling with system size in a considerable window alo...
[ { "created": "Fri, 31 Jul 2015 08:12:07 GMT", "version": "v1" }, { "created": "Sun, 29 Jan 2017 07:19:18 GMT", "version": "v2" } ]
2017-01-31
[ [ "Bhattacharyya", "Abhijit", "" ], [ "Ghosh", "Sanjay K.", "" ], [ "Ray", "Rajarshi", "" ], [ "Saha", "Kinkar", "" ], [ "Upadhaya", "Sudipa", "" ] ]
We discuss the 2+1 flavor Polyakov loop enhanced Nambu--Jona-Lasinio model in a finite volume. The main objective is to check the volume scaling of thermodynamic observables for various temperatures and chemical potentials. We observe the possible violation of the scaling with system size in a considerable window along...
hep-ph/0612295
Raymond R. Volkas
Raymond R. Volkas
The brane as a Higgs domain wall: ideas and issues
4 pages. Invited talk at Susy06. To appear in the proceedings
AIPConf.Proc.903:419-422,2007
10.1063/1.2735213
null
hep-ph
null
The most obvious field-theoretic model for a brane is a scalar field domain wall or kink. I discuss how this idea can be connected with spontaneous internal symmetry breaking via a mechanism called the ``clash of symmetries''. Compatibility with Randall and Sundrum's warped metric alternative to compactification is t...
[ { "created": "Fri, 22 Dec 2006 03:31:13 GMT", "version": "v1" } ]
2008-11-26
[ [ "Volkas", "Raymond R.", "" ] ]
The most obvious field-theoretic model for a brane is a scalar field domain wall or kink. I discuss how this idea can be connected with spontaneous internal symmetry breaking via a mechanism called the ``clash of symmetries''. Compatibility with Randall and Sundrum's warped metric alternative to compactification is the...
1003.5725
Maxim Perelstein
Maxim Perelstein and Yong-Hui Qi
Topological Interactions in the Higgsless Model at the LHC
18 pages, 8 figures. Discussion of Drell-Yan production process added in v3. This is the final version to appear in Physical Review D
Phys.Rev.D82:015004,2010
10.1103/PhysRevD.82.015004
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Topological quantum interactions, namely Chern-Simons terms and global Wess-Zumino terms, arise naturally in theories with extra dimensions of space compactified on orbifolds. If the extra dimensions become manifest at the TeV scale, experiments at the Large Hadron Collider (LHC) could observe signatures of topologic...
[ { "created": "Tue, 30 Mar 2010 03:17:05 GMT", "version": "v1" }, { "created": "Fri, 9 Apr 2010 19:40:24 GMT", "version": "v2" }, { "created": "Thu, 8 Jul 2010 17:48:56 GMT", "version": "v3" } ]
2014-11-20
[ [ "Perelstein", "Maxim", "" ], [ "Qi", "Yong-Hui", "" ] ]
Topological quantum interactions, namely Chern-Simons terms and global Wess-Zumino terms, arise naturally in theories with extra dimensions of space compactified on orbifolds. If the extra dimensions become manifest at the TeV scale, experiments at the Large Hadron Collider (LHC) could observe signatures of topological...
1602.07214
Yuta Orikasa
P. Ko, Takaaki Nomura, Hiroshi Okada, Yuta Orikasa
Confronting a New Three-loop Seesaw Model with the 750 GeV Diphoton Excess
34 pages, 9 figures, 1 table. arXiv admin note: text overlap with arXiv:1601.07339, arXiv:1601.04516, version to appear in PRD
Phys. Rev. D 94, 013009 (2016)
10.1103/PhysRevD.94.013009
KIAS-P16018
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a new type of radiative neutrino model with a local hidden $U(1)$ symmetry, in which neutrino masses are induced at the three loop level, and discuss the muon anomalous magnetic moment, and dark matter candidates therein. By allowing the hypercharges larger than 3/2 for new fields that contribute to the ne...
[ { "created": "Tue, 23 Feb 2016 15:56:42 GMT", "version": "v1" }, { "created": "Fri, 15 Jul 2016 06:03:45 GMT", "version": "v2" } ]
2016-07-20
[ [ "Ko", "P.", "" ], [ "Nomura", "Takaaki", "" ], [ "Okada", "Hiroshi", "" ], [ "Orikasa", "Yuta", "" ] ]
We propose a new type of radiative neutrino model with a local hidden $U(1)$ symmetry, in which neutrino masses are induced at the three loop level, and discuss the muon anomalous magnetic moment, and dark matter candidates therein. By allowing the hypercharges larger than 3/2 for new fields that contribute to the neut...
1807.06245
Wolfgang Lucha
Thomas Hilger, Mar\'ia G\'omez-Rocha, Andreas Krassnigg, Wolfgang Lucha
Global Dyson-Schwinger-Bethe-Salpeter Approach to Mesons with Open Flavour
5 pages, 6 figures, contributed to "QCD@Work 2018 - International Workshop on Quantum Chromodynamics: Theory and Experiment" (25 - 28 June 2018, Matera, Italy)
EPJ Web of Conferences 192, 00038 (2018)
10.1051/epjconf/201819200038
HEPHY-PUB 1003/18 (2018)
hep-ph hep-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Exploiting an interplay of the Bethe-Salpeter equation enabling us to regard mesons as bound states of quark and antiquark and the Dyson-Schwinger equation controlling the dressed quark propagator, we amend existing studies of quarkonia by a comprehensive description of open-flavour mesons composed of all conceivable...
[ { "created": "Tue, 17 Jul 2018 06:49:37 GMT", "version": "v1" } ]
2019-06-03
[ [ "Hilger", "Thomas", "" ], [ "Gómez-Rocha", "María", "" ], [ "Krassnigg", "Andreas", "" ], [ "Lucha", "Wolfgang", "" ] ]
Exploiting an interplay of the Bethe-Salpeter equation enabling us to regard mesons as bound states of quark and antiquark and the Dyson-Schwinger equation controlling the dressed quark propagator, we amend existing studies of quarkonia by a comprehensive description of open-flavour mesons composed of all conceivable c...
2212.14361
Juri Smirnov
Juri Smirnov
Dark Matter Bound States: A Window into the Early Universe
Contribution to the proceedings series based on a plenary talk at the iDM2022 conference in Vienna. 10 pages, 3 figures
null
10.21468/SciPostPhysProc
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Despite significant experimental sensitivity to point-like, weakly interacting particles at the electroweak mass scale, dark matter has not been found yet. This could hint at a more complex dark sector with multiple states or composite dark particles, much like the complexity of the standard model. Currently, our exp...
[ { "created": "Thu, 29 Dec 2022 16:21:49 GMT", "version": "v1" } ]
2023-01-02
[ [ "Smirnov", "Juri", "" ] ]
Despite significant experimental sensitivity to point-like, weakly interacting particles at the electroweak mass scale, dark matter has not been found yet. This could hint at a more complex dark sector with multiple states or composite dark particles, much like the complexity of the standard model. Currently, our exper...
hep-ph/0701115
Lyakhov Konstantin
K.A.Lyakhov
Baryon kinetic energy loss in the color flux tube model
13 pages, 2 figures
Phys. Rev. C 84, (2011), 055206
10.1103/PhysRevC.84.055206
null
hep-ph
null
This article generalizes Schwinger's mechanism for particles production in the arbitrary finite field volume. McLerran-Venugopolan(MV) model and iterative solution of DGLAP equation in the double leading log approximation for small x gluon distribution function were used to derive the new formula for initial chromofi...
[ { "created": "Mon, 15 Jan 2007 19:10:28 GMT", "version": "v1" }, { "created": "Mon, 9 Jul 2007 17:08:10 GMT", "version": "v2" } ]
2023-12-04
[ [ "Lyakhov", "K. A.", "" ] ]
This article generalizes Schwinger's mechanism for particles production in the arbitrary finite field volume. McLerran-Venugopolan(MV) model and iterative solution of DGLAP equation in the double leading log approximation for small x gluon distribution function were used to derive the new formula for initial chromofiel...
hep-ph/0406158
Yuli Shabelski
F.Bopp, Yu.M.Shabelski
Baryon Number Transfer in High Energy $hp$ Collisions
10 pages, 7 figures, references added
Phys.Atom.Nucl. 68 (2005) 2093-2099; Yad.Fiz. 68 (2005) 2155-2161
10.1134/1.2149088
null
hep-ph
null
The process of baryon number transfer due to string junction propagation in rapidity is considered. It has a significant effect in the net baryon production in $pp$ collisions at mid-rapidities and an even larger effect in the forward hemisphere in the cases of $\pi p$ and $\gamma p$ interactions. The results of nume...
[ { "created": "Tue, 15 Jun 2004 12:06:37 GMT", "version": "v1" }, { "created": "Thu, 24 Jun 2004 09:33:04 GMT", "version": "v2" } ]
2009-11-10
[ [ "Bopp", "F.", "" ], [ "Shabelski", "Yu. M.", "" ] ]
The process of baryon number transfer due to string junction propagation in rapidity is considered. It has a significant effect in the net baryon production in $pp$ collisions at mid-rapidities and an even larger effect in the forward hemisphere in the cases of $\pi p$ and $\gamma p$ interactions. The results of numeri...
hep-ph/0203168
Kamila Kowalska
Kamila Kowalska (Institute of Theoretical Physics, Warsaw University, Poland)
Neutrino masses and unification of the gauge and Yukawa couplings
11 pages
Acta Phys.Polon.B33:1823,2002
null
IFT-02/11
hep-ph
null
There is a convincing experimental evidence that neutrinos are massive. Therefore we investigate the influence of the neutrino masses on the unification of gauge and Yukawa couplings in the framework of the Minimal Supersymmetric Standard Model. We estimate the contribution of the neutrino Yukawa coupling to the gaug...
[ { "created": "Mon, 18 Mar 2002 14:29:45 GMT", "version": "v1" }, { "created": "Thu, 21 Mar 2002 13:54:54 GMT", "version": "v2" }, { "created": "Fri, 22 Mar 2002 11:15:06 GMT", "version": "v3" } ]
2014-11-17
[ [ "Kowalska", "Kamila", "", "Institute of Theoretical Physics, Warsaw University,\n Poland" ] ]
There is a convincing experimental evidence that neutrinos are massive. Therefore we investigate the influence of the neutrino masses on the unification of gauge and Yukawa couplings in the framework of the Minimal Supersymmetric Standard Model. We estimate the contribution of the neutrino Yukawa coupling to the gauge ...
1309.5736
David Greynat
Giancarlo D'Ambrosio, David Greynat and Gr\'egory Vulvert
Standard Model and New Physics contributions to $K_L$ and $K_S$ into four leptons
Improvements of the text and references added
Eur. Phys. J. C (2013) 73:2678
10.1140/epjc/s10052-013-2678-1
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the $K_L$ and $K_S$ decays into four leptons ($e\bar{e}e\bar{e}, \, \mu\bar{\mu}\mu\bar{\mu},\, e\bar{e}\mu\bar{\mu}$) where we use a form factor motivated by vector meson dominance, and show the dependence of the branching ratios and spectra from the slopes. A precise determination of short distance contrib...
[ { "created": "Mon, 23 Sep 2013 09:18:12 GMT", "version": "v1" }, { "created": "Tue, 24 Sep 2013 09:07:27 GMT", "version": "v2" }, { "created": "Thu, 28 Nov 2013 12:15:34 GMT", "version": "v3" } ]
2014-04-02
[ [ "D'Ambrosio", "Giancarlo", "" ], [ "Greynat", "David", "" ], [ "Vulvert", "Grégory", "" ] ]
We study the $K_L$ and $K_S$ decays into four leptons ($e\bar{e}e\bar{e}, \, \mu\bar{\mu}\mu\bar{\mu},\, e\bar{e}\mu\bar{\mu}$) where we use a form factor motivated by vector meson dominance, and show the dependence of the branching ratios and spectra from the slopes. A precise determination of short distance contribut...
0902.3570
Alfredo Valcarce
J. Vijande, G. Krein, A. Valcarce
Screened potential and quarkonia properties at high temperatures
9 pages, 11 figures. Accepted for publication ijn Eur. Phys. J. A
Eur.Phys.J.A40:89-97,2009
10.1140/epja/i2008-10736-9
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We perform a quark model calculation of the quarkonia $b\overline{b}$ and $c\overline{c}$ spectra using smooth and sudden string breaking potentials. The screening parameter is scale dependent and can be related to an effective running gluon mass that has a finite infrared fixed point. A temperature dependence for th...
[ { "created": "Fri, 20 Feb 2009 12:34:26 GMT", "version": "v1" } ]
2014-11-18
[ [ "Vijande", "J.", "" ], [ "Krein", "G.", "" ], [ "Valcarce", "A.", "" ] ]
We perform a quark model calculation of the quarkonia $b\overline{b}$ and $c\overline{c}$ spectra using smooth and sudden string breaking potentials. The screening parameter is scale dependent and can be related to an effective running gluon mass that has a finite infrared fixed point. A temperature dependence for the ...
hep-ph/0305165
A. Cooper-Sarkar
A.M.Cooper-Sarkar and R.C.E.Devenish
The rise and fall of F_2 at low x
16 pages, 11 figues. To appear in the special edition of Acta Physica Polonica to celebrate the 65th birthday of Prof. Jan Kwiecinski
Acta Phys.Polon.B34:2911-2928,2003
null
null
hep-ph
null
A short personal account is given of the impact of HERA data and the influence of Jan Kwiecinski on low x physics
[ { "created": "Thu, 15 May 2003 13:26:53 GMT", "version": "v1" } ]
2014-11-17
[ [ "Cooper-Sarkar", "A. M.", "" ], [ "Devenish", "R. C. E.", "" ] ]
A short personal account is given of the impact of HERA data and the influence of Jan Kwiecinski on low x physics
hep-ph/0006070
Alexei Nefediev
Yu.S.Kalashnikova, A.V.Nefediev (ITEP,Moscow)
Strong decays and Adler selfconsistency condition in two-dimensional QCD
LaTeX2e, 10 pages, 4 eps pictures, comment and one reference added
Phys.Lett. B487 (2000) 371-378
10.1016/S0370-2693(00)00828-5
null
hep-ph
null
Strong mesonic decays are studied in the framework of the 't Hooft model for the two-dimensional QCD in the axial gauge. Special attention is payed to the processes with pions in the final state involved and the low energy theorems have been checked including the "Adler zero". It is demonstrated explicitly that in th...
[ { "created": "Thu, 8 Jun 2000 08:17:38 GMT", "version": "v1" }, { "created": "Wed, 23 Aug 2000 11:17:10 GMT", "version": "v2" } ]
2009-10-31
[ [ "Kalashnikova", "Yu. S.", "", "ITEP,Moscow" ], [ "Nefediev", "A. V.", "", "ITEP,Moscow" ] ]
Strong mesonic decays are studied in the framework of the 't Hooft model for the two-dimensional QCD in the axial gauge. Special attention is payed to the processes with pions in the final state involved and the low energy theorems have been checked including the "Adler zero". It is demonstrated explicitly that in the ...
0901.1619
Sujoy Poddar
Amitava Datta and Sujoy Poddar
Probing R-parity violating models of neutrino mass at the LHC via top squark decays
19 pages, 1 Figure and 11 Tables
Phys.Rev.D79:075021,2009
10.1103/PhysRevD.79.075021
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It is shown that the R-parity violating decays of the lighter top squarks (${\widetilde t}_1$) triggered by the lepton number violating couplings $\lambda^{\prime}_{i33}$, where the lepton family index i = 1-3, can be observed at the LHC via the dilepton di-jet channel even if the coupling is as small as 10$^{-4}$ or...
[ { "created": "Mon, 12 Jan 2009 17:26:52 GMT", "version": "v1" } ]
2009-11-06
[ [ "Datta", "Amitava", "" ], [ "Poddar", "Sujoy", "" ] ]
It is shown that the R-parity violating decays of the lighter top squarks (${\widetilde t}_1$) triggered by the lepton number violating couplings $\lambda^{\prime}_{i33}$, where the lepton family index i = 1-3, can be observed at the LHC via the dilepton di-jet channel even if the coupling is as small as 10$^{-4}$ or 1...
hep-ph/0611355
Markus H. Thoma
Purnendu Chakraborty, Munshi Golam Mustafa, Markus H. Thoma
Energy gain of heavy quarks by fluctuations in the QGP
6 pages, 4 figures, extended version, accepted for publication in Phys. Rev. C
Phys.Rev.C75:064908,2007
10.1103/PhysRevC.75.064908
null
hep-ph nucl-th
null
The collisional energy gain of a heavy quark due to chromo-electromagnetic field fluctuations in a quark-gluon plasma is investigated. The field fluctuations lead to an energy gain of the quark for all temperatures and velocities. The net effect is a reduction of the collisional energy loss by 15-40% for parameters r...
[ { "created": "Tue, 28 Nov 2006 15:40:55 GMT", "version": "v1" }, { "created": "Fri, 11 May 2007 13:58:38 GMT", "version": "v2" } ]
2008-11-26
[ [ "Chakraborty", "Purnendu", "" ], [ "Mustafa", "Munshi Golam", "" ], [ "Thoma", "Markus H.", "" ] ]
The collisional energy gain of a heavy quark due to chromo-electromagnetic field fluctuations in a quark-gluon plasma is investigated. The field fluctuations lead to an energy gain of the quark for all temperatures and velocities. The net effect is a reduction of the collisional energy loss by 15-40% for parameters rel...
hep-ph/9311265
null
T.G. Rizzo
Model Dependence of $W_R$ Searches at the Tevatron
LaTex, 13 pages, 11 figures (not included), ANL-HEP-PR-93-87
Phys.Rev.D50:325-330,1994
10.1103/PhysRevD.50.325
null
hep-ph
null
We explore the sensitivity of the on-going Tevatron search for charged, right-handed gauge bosons, $W_R^{\pm}$, to various model dependent assumptions such as the magnitude of the $SU(2)_R$ gauge coupling, the values of the right-handed Kobayashi-Maskawa mixing matrix elements, $(V_R)_{ij}$, and the nature of the rig...
[ { "created": "Wed, 10 Nov 1993 12:46:04 GMT", "version": "v1" } ]
2010-11-01
[ [ "Rizzo", "T. G.", "" ] ]
We explore the sensitivity of the on-going Tevatron search for charged, right-handed gauge bosons, $W_R^{\pm}$, to various model dependent assumptions such as the magnitude of the $SU(2)_R$ gauge coupling, the values of the right-handed Kobayashi-Maskawa mixing matrix elements, $(V_R)_{ij}$, and the nature of the right...
1003.0324
Yuji Kajiyama
Yuji Kajiyama, Shaaban Khalil, Hiroshi Okada and Ernest Ma
Gauged B-L Leptogenesis
4 pages, 2 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a new leptogenesis scenario in a gauged $B-L$ model with supersymmetry at the TeV energy scale. Instead of relying on the very small Yukawa couplings of the singlet neutrinos $N^c$ to generate the observed baryon asymmetry of the Universe, which requires a very large resonance enhancement, their $B-L$ gaug...
[ { "created": "Mon, 1 Mar 2010 12:00:17 GMT", "version": "v1" } ]
2010-03-02
[ [ "Kajiyama", "Yuji", "" ], [ "Khalil", "Shaaban", "" ], [ "Okada", "Hiroshi", "" ], [ "Ma", "Ernest", "" ] ]
We propose a new leptogenesis scenario in a gauged $B-L$ model with supersymmetry at the TeV energy scale. Instead of relying on the very small Yukawa couplings of the singlet neutrinos $N^c$ to generate the observed baryon asymmetry of the Universe, which requires a very large resonance enhancement, their $B-L$ gauge ...
1204.5453
Fuminobu Takahashi
Kwang Sik Jeong and Fuminobu Takahashi
Anarchy and Leptogenesis
29 pages, 6 figures. v2: figures and references added. v3: published in JHEP
JHEP07(2012)170
10.1007/JHEP07(2012)170
TU-905; IPMU12-0071
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study if leptogenesis works successfully together with the neutrino mass anarchy hypothesis. We find that the predicted neutrino mass spectrum is sensitive to the reheating temperature or the inflaton mass, while the distributions of the neutrino mixing angles and CP violation phases remain intact as determined by...
[ { "created": "Tue, 24 Apr 2012 18:03:50 GMT", "version": "v1" }, { "created": "Thu, 10 May 2012 05:16:42 GMT", "version": "v2" }, { "created": "Thu, 2 Aug 2012 00:52:38 GMT", "version": "v3" } ]
2012-08-03
[ [ "Jeong", "Kwang Sik", "" ], [ "Takahashi", "Fuminobu", "" ] ]
We study if leptogenesis works successfully together with the neutrino mass anarchy hypothesis. We find that the predicted neutrino mass spectrum is sensitive to the reheating temperature or the inflaton mass, while the distributions of the neutrino mixing angles and CP violation phases remain intact as determined by t...
hep-ph/9612254
Concha Gonzalez-Garcia
O.J.P. Eboli, M.C. Gonzalez-Garcia, and J.K. Mizukoshi
Z Physics Constraints on Vector Leptoquarks
15 pages, revtex, 3 figures included
Phys.Lett.B396:238-244,1997
10.1016/S0370-2693(97)00123-8
FTUV/96-82; IFIC/96-91; IFUSP-P 1251
hep-ph
null
We analyze the constraints on vector leptoquarks coming from radiative corrections to $Z$ physics. We perform a global fitting to the LEP data including the oblique and non-universal contributions of the most general effective Lagrangian for vector leptoquarks, which exhibits the $SU(2)_L \times U(1)_Y$ gauge invaria...
[ { "created": "Wed, 4 Dec 1996 16:32:52 GMT", "version": "v1" } ]
2011-01-25
[ [ "Eboli", "O. J. P.", "" ], [ "Gonzalez-Garcia", "M. C.", "" ], [ "Mizukoshi", "J. K.", "" ] ]
We analyze the constraints on vector leptoquarks coming from radiative corrections to $Z$ physics. We perform a global fitting to the LEP data including the oblique and non-universal contributions of the most general effective Lagrangian for vector leptoquarks, which exhibits the $SU(2)_L \times U(1)_Y$ gauge invarianc...
1402.0666
Felipe J. Llanes-Estrada
Antonio Dobado (contact author), Rafael L. Delgado and Felipe J. Llanes-Estrada (Univ. Complutense Madrid)
Strongly Interacting Electroweak Symmetry Breaking Sector with a Higgs-like light scalar
Delivered at the II Russian-Spanish Congress "Particle and Nuclear Physics at all Scales and Cosmology" Institute of Cosmos Sciences, Saint-Petersburg, October 1-4, 2013. To be published (AIP proc.)
null
10.1063/1.4891127
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The apparent finding of a 125-GeV light Higgs boson closes unitarity of the minimal Standard Model (SM), that is weakly interacting: this is an exceptional feature not generally true if new physics exists beyond the mass gap found at the LHC up to 700 GeV. Such new physics induces departures of the low-energy dynamic...
[ { "created": "Tue, 4 Feb 2014 09:11:54 GMT", "version": "v1" } ]
2015-04-17
[ [ "Dobado", "Antonio", "", "contact author" ], [ "Delgado", "Rafael L.", "", "Univ. Complutense Madrid" ], [ "Llanes-Estrada", "Felipe J.", "", "Univ. Complutense Madrid" ] ]
The apparent finding of a 125-GeV light Higgs boson closes unitarity of the minimal Standard Model (SM), that is weakly interacting: this is an exceptional feature not generally true if new physics exists beyond the mass gap found at the LHC up to 700 GeV. Such new physics induces departures of the low-energy dynamics ...
hep-ph/0405206
Bachir Moussallam
B. Ananthanarayan and B. Moussallam
Four-point correlator constraints on electromagnetic chiral parameters and resonance effective Lagrangians
42 pages, 1 figure. v2: references added
JHEP 0406:047,2004
10.1088/1126-6708/2004/06/047
IISc-CHEP-5/04 IPNO-DR-04/05
hep-ph
null
We pursue the analysis of a set of generalized DGMLY sum rules for the electromagnetic chiral parameters at order $e^2p^2$ and discuss implications for effective Lagrangians with resonances. We exploit a formalism in which charge spurions are introduced and treated as sources. We show that no inconsistency arises fro...
[ { "created": "Fri, 21 May 2004 10:55:50 GMT", "version": "v1" }, { "created": "Tue, 1 Jun 2004 13:45:53 GMT", "version": "v2" } ]
2010-02-03
[ [ "Ananthanarayan", "B.", "" ], [ "Moussallam", "B.", "" ] ]
We pursue the analysis of a set of generalized DGMLY sum rules for the electromagnetic chiral parameters at order $e^2p^2$ and discuss implications for effective Lagrangians with resonances. We exploit a formalism in which charge spurions are introduced and treated as sources. We show that no inconsistency arises from ...
hep-ph/9408309
Dremin
I.M. Dremin
Multiplicity Distributions in QCD at Very High Energies
4 pages, no Figs. Abbreviated version of the talk given at 8th International conf. on Very High Energy Cosmic Ray Interactions, Tokyo, July 1994
null
null
null
hep-ph
null
Recent results in QCD on multiplicity distributions are briefly reviewed. QCD is able to predict very tiny features of multiplicity distributions which demonstrate that the negative binomial distribution (and, more generally, any infinitely divisible distribution) is inappropriate for precise description of experimen...
[ { "created": "Thu, 18 Aug 1994 03:43:45 GMT", "version": "v1" } ]
2007-05-23
[ [ "Dremin", "I. M.", "" ] ]
Recent results in QCD on multiplicity distributions are briefly reviewed. QCD is able to predict very tiny features of multiplicity distributions which demonstrate that the negative binomial distribution (and, more generally, any infinitely divisible distribution) is inappropriate for precise description of experimenta...
1002.1589
Rasna Rajkhowa
R.Rajkhowa, U. Jamil and J.K. Sarma
Polarized Dokshitzer-Gribov-Lipatov- Altarelli-Parisi equations and t-evolution of structure functions in next-to-leading order at small-x
19 pages, 3 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper the spin-dependent singlet and non-singlet structure functions have been obtained by solving Dokshitzer-Gribov-Lipatov-Altarelli-Parisi evolution equations in next-to-leading order in the small x limit. Here we have used Taylor series expansion and then the particular and unique solution to solve the ev...
[ { "created": "Mon, 8 Feb 2010 12:30:43 GMT", "version": "v1" } ]
2010-02-09
[ [ "Rajkhowa", "R.", "" ], [ "Jamil", "U.", "" ], [ "Sarma", "J. K.", "" ] ]
In this paper the spin-dependent singlet and non-singlet structure functions have been obtained by solving Dokshitzer-Gribov-Lipatov-Altarelli-Parisi evolution equations in next-to-leading order in the small x limit. Here we have used Taylor series expansion and then the particular and unique solution to solve the evol...
1003.4533
Daniel de Florian
Daniel de Florian and Werner Vogelsang
Helicity Parton Distributions from Spin Asymmetries in W-Boson Production at RHIC
22 pages, 13 figures included. Typos in Figs 2, 6, 8 and scales corrected
Phys.Rev.D81:094020,2010
10.1103/PhysRevD.81.094020
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a next-to-leading order QCD calculation of the cross section and longitudinal spin asymmetry in single-inclusive charged-lepton production, pp -> l X, at RHIC, where the lepton is produced in the decay of an electroweak gauge boson. Our calculation is presented in terms of a multi-purpose Monte-Carlo integ...
[ { "created": "Tue, 23 Mar 2010 21:18:25 GMT", "version": "v1" }, { "created": "Sun, 9 May 2010 17:52:50 GMT", "version": "v2" }, { "created": "Tue, 8 Mar 2011 02:34:27 GMT", "version": "v3" } ]
2011-03-09
[ [ "de Florian", "Daniel", "" ], [ "Vogelsang", "Werner", "" ] ]
We present a next-to-leading order QCD calculation of the cross section and longitudinal spin asymmetry in single-inclusive charged-lepton production, pp -> l X, at RHIC, where the lepton is produced in the decay of an electroweak gauge boson. Our calculation is presented in terms of a multi-purpose Monte-Carlo integra...
0706.3944
Kunihiko Terasaki
Kunihiko Terasaki
A new tetra-quark interpretation of X(3872)
4 pages, 0 figures, RevTeX, description clarified
Prog. Theor. Phys. 118: 821-826, 2007
10.1143/PTP.118.821
YITP-07-36, KANAZAWA-0707
hep-ph hep-ex nucl-th
null
A new tetra-quark interpretation of X(3872) is presented. In this model, X(3872) consists of two degenerate tetra-quark mesons, {[cn](cbar nbar) +- (cn)[cbar nbar]}_{I=0}, and, therefore, it is naturally understood that X(3872) decays into two different eigenstates of G-parity.
[ { "created": "Wed, 27 Jun 2007 02:01:38 GMT", "version": "v1" }, { "created": "Mon, 9 Jul 2007 02:26:30 GMT", "version": "v2" }, { "created": "Mon, 12 Nov 2007 01:08:20 GMT", "version": "v3" } ]
2015-05-13
[ [ "Terasaki", "Kunihiko", "" ] ]
A new tetra-quark interpretation of X(3872) is presented. In this model, X(3872) consists of two degenerate tetra-quark mesons, {[cn](cbar nbar) +- (cn)[cbar nbar]}_{I=0}, and, therefore, it is naturally understood that X(3872) decays into two different eigenstates of G-parity.
1312.5329
David M. Straub
Adam Falkowski, David M. Straub, and Avelino Vicente
Vector-like leptons: Higgs decays and collider phenomenology
16 pages, 5 figures
null
10.1007/JHEP05(2014)092
LPT-Orsay-13-141
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the impact of heavy vector-like leptons on several observables in collider and low-energy physics. These states, present in many well-motivated extensions of the Standard Model, can induce lepton flavour violation and non-standard Higgs decays. We study these effects in an effective model inspired by the com...
[ { "created": "Wed, 18 Dec 2013 21:00:13 GMT", "version": "v1" } ]
2015-06-18
[ [ "Falkowski", "Adam", "" ], [ "Straub", "David M.", "" ], [ "Vicente", "Avelino", "" ] ]
We study the impact of heavy vector-like leptons on several observables in collider and low-energy physics. These states, present in many well-motivated extensions of the Standard Model, can induce lepton flavour violation and non-standard Higgs decays. We study these effects in an effective model inspired by the compo...
1809.00425
Yoshio Koide
Yoshio Koide
What Physics Does The Charged Lepton Mass Relation Tell Us?
5 pge, Conference report
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The charged lepton mass relation $K \equiv (m_e +m_\mu+m_\tau)/(\sqrt{m_e} %+\sqrt{m_\mu} +\sqrt{m_\tau})^2= 2/3 $ is excellently satisfied by observed masses (pole masses). However, the formula $K=2/3$ should be never satisfied with the observed charged lepton masses. We will review a mechanism by proposed by Sumi...
[ { "created": "Mon, 3 Sep 2018 02:06:38 GMT", "version": "v1" }, { "created": "Fri, 8 Nov 2019 08:33:52 GMT", "version": "v2" }, { "created": "Tue, 12 Nov 2019 11:06:56 GMT", "version": "v3" } ]
2019-11-13
[ [ "Koide", "Yoshio", "" ] ]
The charged lepton mass relation $K \equiv (m_e +m_\mu+m_\tau)/(\sqrt{m_e} %+\sqrt{m_\mu} +\sqrt{m_\tau})^2= 2/3 $ is excellently satisfied by observed masses (pole masses). However, the formula $K=2/3$ should be never satisfied with the observed charged lepton masses. We will review a mechanism by proposed by Sumino a...
1512.07889
Shun Zhou
Jue Zhang and Shun Zhou
Electroweak Vacuum Stability and Diphoton Excess at 750 GeV
17 pages, 2 figures, an error removed, numerical results revised, more discussions added, to be published in Chin. Phys. C
Chin. Phys. C 40 (2016) 081001
10.1088/1674-1137/40/8/081001
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recently, both ATLAS and CMS collaborations at the CERN Large Hadron Collider (LHC) have announced their observations of an excess of diphoton events around the invariant mass of $750~{\rm GeV}$ with a local significance of $3.6\sigma$ and $2.6\sigma$, respectively. In this paper, we interpret the diphoton excess as ...
[ { "created": "Thu, 24 Dec 2015 19:21:57 GMT", "version": "v1" }, { "created": "Mon, 28 Dec 2015 17:24:26 GMT", "version": "v2" }, { "created": "Thu, 28 Apr 2016 08:30:07 GMT", "version": "v3" } ]
2016-05-04
[ [ "Zhang", "Jue", "" ], [ "Zhou", "Shun", "" ] ]
Recently, both ATLAS and CMS collaborations at the CERN Large Hadron Collider (LHC) have announced their observations of an excess of diphoton events around the invariant mass of $750~{\rm GeV}$ with a local significance of $3.6\sigma$ and $2.6\sigma$, respectively. In this paper, we interpret the diphoton excess as th...
hep-ph/0601191
Jaume Guasch
Santi Bejar, Jaume Guasch, Joan Sola
SUSY Higgs boson flavor-changing neutral currents at the LHC
6 pages, LaTeX, 3 figures, 3 tables, to appear in the proceedings of the "7th International Symposium on Radiative Corrections (RADCOR05)", Shonan Village, Japan, 2005. References updated
null
10.1016/j.nuclphysbps.2006.03.042
UAB-FT-597, UB-ECM-PF-06/03
hep-ph
null
We compute and analyze the Flavor-Changing Neutral Current (FCNC) interactions of Minimal Supersymmetric Standard Model Higgs bosons (h = h0, H0, A0) with heavy quarks (top and bottom), focusing on the strongly-interacting sector. We correlate the Higgs bosons production cross-section at the LHC with the FCNC decay b...
[ { "created": "Mon, 23 Jan 2006 18:55:33 GMT", "version": "v1" }, { "created": "Mon, 30 Jan 2006 15:39:14 GMT", "version": "v2" } ]
2009-11-11
[ [ "Bejar", "Santi", "" ], [ "Guasch", "Jaume", "" ], [ "Sola", "Joan", "" ] ]
We compute and analyze the Flavor-Changing Neutral Current (FCNC) interactions of Minimal Supersymmetric Standard Model Higgs bosons (h = h0, H0, A0) with heavy quarks (top and bottom), focusing on the strongly-interacting sector. We correlate the Higgs bosons production cross-section at the LHC with the FCNC decay bra...
hep-ph/9906268
Jaume Guasch
Jaume Guasch, Joan Sola
FCNC top quark decay in the MSSM: a door to SUSY physics in high luminosity colliders?
22 pages, LaTeX2e, 10 figs. included. Title changed. Note and references added
Nucl.Phys.B562:3-28,1999
10.1016/S0550-3213(99)00579-9
UAB-FT-429, KA-TP-6-99
hep-ph
null
We study the FCNC top quark decays t -> c h in the framework of the MSSM, where h= h^0,H^0,A^0 is any of the supersymmetric neutral Higgs bosons. We include the leading set of SUSY-QCD and SUSY electroweak contributions. While the FCNC top quark decay into the SM Higgs boson has such a negligible rate that will not b...
[ { "created": "Mon, 7 Jun 1999 18:29:27 GMT", "version": "v1" }, { "created": "Tue, 15 Jun 1999 11:20:24 GMT", "version": "v2" } ]
2011-02-11
[ [ "Guasch", "Jaume", "" ], [ "Sola", "Joan", "" ] ]
We study the FCNC top quark decays t -> c h in the framework of the MSSM, where h= h^0,H^0,A^0 is any of the supersymmetric neutral Higgs bosons. We include the leading set of SUSY-QCD and SUSY electroweak contributions. While the FCNC top quark decay into the SM Higgs boson has such a negligible rate that will not be ...
hep-ph/9808434
A. Bialas
A.Bialas
Quark model and strange baryon production in heavy ion collisions
latex, 7 pages
Phys.Lett. B442 (1998) 449-452
10.1016/S0370-2693(98)01250-7
TPJU - 21/98
hep-ph
null
It is pointed out that the recent data on strange baryon and antibaryon production in Pb-Pb collisions at 159 GeV/c agree well with the hypothesis of an intermediate state of quasi-free and randomly distributed constituent quarks and antiquarks. Also the S-S data are consistent with this hypothesis. The p-Pb data fol...
[ { "created": "Thu, 27 Aug 1998 09:29:01 GMT", "version": "v1" } ]
2009-10-31
[ [ "Bialas", "A.", "" ] ]
It is pointed out that the recent data on strange baryon and antibaryon production in Pb-Pb collisions at 159 GeV/c agree well with the hypothesis of an intermediate state of quasi-free and randomly distributed constituent quarks and antiquarks. Also the S-S data are consistent with this hypothesis. The p-Pb data follo...
1305.5364
Anna Kaminska
Anna Kaminska
Composite or elementary? Probing the nature of the Higgs
Talk given at Rencontres de Moriond QCD, 2013
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
I discuss consequences of electroweak symmetry breaking by strong dynamics, assuming the existence of a light composite scalar appearing as a pseudo-Goldstone boson of some global symmetry of the new strongly interacting sector. In such a scenario, the composite scalar has properties very similar to the Standard Mode...
[ { "created": "Thu, 23 May 2013 09:55:27 GMT", "version": "v1" } ]
2013-05-24
[ [ "Kaminska", "Anna", "" ] ]
I discuss consequences of electroweak symmetry breaking by strong dynamics, assuming the existence of a light composite scalar appearing as a pseudo-Goldstone boson of some global symmetry of the new strongly interacting sector. In such a scenario, the composite scalar has properties very similar to the Standard Model ...
2104.14182
Denny Lane Sombillo
Denny Lane B. Sombillo and Yoichi Ikeda and Toru Sato and Atsushi Hosaka
Unveiling the pole structure of S-matrix using deep learning
7 pages, 3 figures, 2 tables, Added references
null
null
null
hep-ph hep-ex nucl-ex nucl-th quant-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Particle scattering is a powerful tool to unveil the nature of various subatomic phenomena. The key quantity is the scattering amplitude whose analytic structure carries the information of the quantum states. In this work, we demonstrate our first step attempt to extract the pole configuration of inelastic scattering...
[ { "created": "Thu, 29 Apr 2021 08:00:34 GMT", "version": "v1" }, { "created": "Wed, 12 May 2021 02:19:53 GMT", "version": "v2" } ]
2021-05-13
[ [ "Sombillo", "Denny Lane B.", "" ], [ "Ikeda", "Yoichi", "" ], [ "Sato", "Toru", "" ], [ "Hosaka", "Atsushi", "" ] ]
Particle scattering is a powerful tool to unveil the nature of various subatomic phenomena. The key quantity is the scattering amplitude whose analytic structure carries the information of the quantum states. In this work, we demonstrate our first step attempt to extract the pole configuration of inelastic scatterings ...
2202.12317
Ana Luisa Foguel
Enrico Bertuzzo, Ana Luisa Foguel, Gabriel M. Salla and Renata Zukanovich Funchal
New Limits on Leptophilic Axionlike Particles and Majorons from ArgoNeuT
8 pages, 4 figures; v2: extended discussion of the analysis and new appendices; matches version published at PRL
null
10.1103/PhysRevLett.130.171801
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Axionlike particles are among the most studied extensions of the standard model. In this Letter we study the bounds that the ArgoNeuT experiment can put on the parameter space of two specific scenarios: leptophilic axionlike particles and Majorons. We find that such bounds are currently the most constraining ones in ...
[ { "created": "Thu, 24 Feb 2022 19:03:36 GMT", "version": "v1" }, { "created": "Mon, 1 May 2023 20:31:20 GMT", "version": "v2" } ]
2023-05-03
[ [ "Bertuzzo", "Enrico", "" ], [ "Foguel", "Ana Luisa", "" ], [ "Salla", "Gabriel M.", "" ], [ "Funchal", "Renata Zukanovich", "" ] ]
Axionlike particles are among the most studied extensions of the standard model. In this Letter we study the bounds that the ArgoNeuT experiment can put on the parameter space of two specific scenarios: leptophilic axionlike particles and Majorons. We find that such bounds are currently the most constraining ones in th...
hep-ph/9711345
Jean Letessier
Jean Letessier, Jan Rafelski, Ahmed Tounsi
Strange Particle Abundance in QGP Formed in 200 GeV A Nuclear Collisions
11 pages, LaTeX, 3 postscript figures, Phys. Lett. B 323 (1994) 393
Phys.Lett. B323 (1994) 393-400
10.1016/0370-2693(94)91237-8
null
hep-ph nucl-th
null
We investigate here the relative abundance of strange particles produced in nuclear collisions at the SPS energies (9 GeV A in CM frame) assuming that the central reaction fireball consists of quark-gluon plasma. We show that the total strangeness yield in S-S, S-Ag and S-W reactions is compatible with this picture.
[ { "created": "Mon, 17 Nov 1997 11:31:02 GMT", "version": "v1" } ]
2009-10-30
[ [ "Letessier", "Jean", "" ], [ "Rafelski", "Jan", "" ], [ "Tounsi", "Ahmed", "" ] ]
We investigate here the relative abundance of strange particles produced in nuclear collisions at the SPS energies (9 GeV A in CM frame) assuming that the central reaction fireball consists of quark-gluon plasma. We show that the total strangeness yield in S-S, S-Ag and S-W reactions is compatible with this picture.
hep-ph/9408308
null
Nick Evans
Additional Fermion Families and Precision Electroweak Data
7 pages + 4 appended ps diags, SWAT-40
Phys.Lett. B340 (1994) 81-85
10.1016/0370-2693(94)91301-3
null
hep-ph
null
The S,T, and U formalism for studying electroweak precision data has recently been updated to include the effects of new light physics and within this analysis the latest LEP and SLC data tightly constrain models of physics beyond the Standard Model. We re-examine the constraints on additional strong and weakly inter...
[ { "created": "Wed, 17 Aug 1994 12:06:25 GMT", "version": "v1" } ]
2009-10-28
[ [ "Evans", "Nick", "" ] ]
The S,T, and U formalism for studying electroweak precision data has recently been updated to include the effects of new light physics and within this analysis the latest LEP and SLC data tightly constrain models of physics beyond the Standard Model. We re-examine the constraints on additional strong and weakly interac...
0712.4270
A. J. Buchmann
A.J. Buchmann
Charge form factors and nucleon shape
14 pages, 5 figures, Proceedings of Shapes of Hadrons Workshop, Athens, Greece, 27-29 April 2006
AIP Conf.Proc.904:110-125,2007
10.1063/1.2734297
null
hep-ph nucl-th
null
To obtain further information on the geometric shape of the nucleon, the proton charge form factor is decomposed into two terms, which are connected respectively with a spherically symmetric and an intrinsic quadrupole part of the proton's charge density. Quark model relations are employed to derive expressions for b...
[ { "created": "Thu, 27 Dec 2007 19:56:34 GMT", "version": "v1" } ]
2010-11-11
[ [ "Buchmann", "A. J.", "" ] ]
To obtain further information on the geometric shape of the nucleon, the proton charge form factor is decomposed into two terms, which are connected respectively with a spherically symmetric and an intrinsic quadrupole part of the proton's charge density. Quark model relations are employed to derive expressions for bot...
2012.05763
Johannes Rosskopp
Stefan Antusch and Johannes Rosskopp
Heavy Neutrino-Antineutrino Oscillations in Quantum Field Theory
24 pages plus appendix, 3 figures, matches journal version
null
10.1007/JHEP03(2021)170
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
It has been proposed that the coherent propagation of long-lived heavy neutrino mass eigenstates can lead to an oscillating rate of lepton number conserving (LNC) and violating (LNV) events, as a function of the distance between the production and displaced decay vertices. We discuss this phenomenon, which we refer t...
[ { "created": "Thu, 10 Dec 2020 15:47:56 GMT", "version": "v1" }, { "created": "Thu, 24 Dec 2020 13:08:38 GMT", "version": "v2" }, { "created": "Wed, 31 Mar 2021 13:03:39 GMT", "version": "v3" } ]
2021-04-01
[ [ "Antusch", "Stefan", "" ], [ "Rosskopp", "Johannes", "" ] ]
It has been proposed that the coherent propagation of long-lived heavy neutrino mass eigenstates can lead to an oscillating rate of lepton number conserving (LNC) and violating (LNV) events, as a function of the distance between the production and displaced decay vertices. We discuss this phenomenon, which we refer to ...
1712.07469
En Wang
Li-Juan liu, En Wang, Ju-Jun Xie, Kai-Lan Song, Jing-Yu Zhu
$\Lambda(1405)$ production in the process $\chi_{c0}(1P)\to \bar{\Lambda}\Sigma\pi$
7 pages, 13 figures, the version for PRD
Phys. Rev. D 98, 114017 (2018)
10.1103/PhysRevD.98.114017
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We have performed a theoretical study on the process $\chi_{c0}(1P)\to \bar{\Lambda}\Sigma\pi$, by taking into account the final state interactions of $\pi\Sigma$ and $\pi\bar{\Lambda}$ based on the chiral unitary approach. As the isospin filters of $I=0$ in the $\pi\Sigma$ channel and $I=1$ in the $\pi\bar{\Lambda}$...
[ { "created": "Wed, 20 Dec 2017 13:25:43 GMT", "version": "v1" }, { "created": "Sun, 17 Jun 2018 03:14:43 GMT", "version": "v2" }, { "created": "Thu, 13 Dec 2018 02:00:02 GMT", "version": "v3" } ]
2018-12-26
[ [ "liu", "Li-Juan", "" ], [ "Wang", "En", "" ], [ "Xie", "Ju-Jun", "" ], [ "Song", "Kai-Lan", "" ], [ "Zhu", "Jing-Yu", "" ] ]
We have performed a theoretical study on the process $\chi_{c0}(1P)\to \bar{\Lambda}\Sigma\pi$, by taking into account the final state interactions of $\pi\Sigma$ and $\pi\bar{\Lambda}$ based on the chiral unitary approach. As the isospin filters of $I=0$ in the $\pi\Sigma$ channel and $I=1$ in the $\pi\bar{\Lambda}$ c...
2207.13258
Hongxi Xing
Tianyin Li, Xingyu Guo, Wai Kin Lai, Xiaohui Liu, Enke Wang, Hongxi Xing, Dan-Bo Zhang, Shi-Liang Zhu
Exploring Light-Cone Distribution Amplitudes from Quantum Computing
8 pages, 7 figures, published version in Sci.China Phys.Mech.Astron
null
10.1007/s11433-023-2120-1
null
hep-ph hep-ex nucl-th quant-ph
http://creativecommons.org/licenses/by/4.0/
Light-cone distribution amplitudes (LCDAs) are essential nonperturbative quantities for theoretical predictions of exclusive high-energy processes in quantum chromodynamics (QCD). We demonstrate the prospect of calculating LCDAs on a quantum computer by applying a recently proposed quantum algorithm, with staggered f...
[ { "created": "Wed, 27 Jul 2022 02:45:47 GMT", "version": "v1" }, { "created": "Wed, 18 Oct 2023 02:12:18 GMT", "version": "v2" } ]
2023-10-19
[ [ "Li", "Tianyin", "" ], [ "Guo", "Xingyu", "" ], [ "Lai", "Wai Kin", "" ], [ "Liu", "Xiaohui", "" ], [ "Wang", "Enke", "" ], [ "Xing", "Hongxi", "" ], [ "Zhang", "Dan-Bo", "" ], [ "Zhu", "Shi-Lia...
Light-cone distribution amplitudes (LCDAs) are essential nonperturbative quantities for theoretical predictions of exclusive high-energy processes in quantum chromodynamics (QCD). We demonstrate the prospect of calculating LCDAs on a quantum computer by applying a recently proposed quantum algorithm, with staggered fer...
1312.2955
Fady Bishara
Fady Bishara, Yuval Grossman, Roni Harnik, Dean J. Robinson, Jing Shu and Jure Zupan
Probing CP Violation in $h\rightarrow\gamma\gamma$ with Converted Photons
49 pages, 15 figures; updated to match JHEP and fixed minor typos
null
10.1007/JHEP04(2014)084
FERMILAB-PUB-13-540-T
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study Higgs diphoton decays, in which both photons undergo nuclear conversion to electron- positron pairs. The kinematic distribution of the two electron-positron pairs may be used to probe the CP violating (CPV) coupling of the Higgs to photons, that may be produced by new physics. Detecting CPV in this manner re...
[ { "created": "Tue, 10 Dec 2013 21:00:05 GMT", "version": "v1" }, { "created": "Mon, 9 Nov 2015 21:00:55 GMT", "version": "v2" } ]
2015-11-11
[ [ "Bishara", "Fady", "" ], [ "Grossman", "Yuval", "" ], [ "Harnik", "Roni", "" ], [ "Robinson", "Dean J.", "" ], [ "Shu", "Jing", "" ], [ "Zupan", "Jure", "" ] ]
We study Higgs diphoton decays, in which both photons undergo nuclear conversion to electron- positron pairs. The kinematic distribution of the two electron-positron pairs may be used to probe the CP violating (CPV) coupling of the Higgs to photons, that may be produced by new physics. Detecting CPV in this manner requ...
1409.7000
Chengcheng Han
Chengcheng Han
Probing light bino and higgsinos at the LHC
15 pages, 5 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivated by the naturalness, we study a simplified MSSM scenario where only the bino-like LSP and higgsino-like NLSP are light. We first scan the parameter space of this scenario, considering the constraints from the Higgs mass, flavor physics, electroweak precision measurements and dark matter experiments. Then in ...
[ { "created": "Wed, 24 Sep 2014 15:46:17 GMT", "version": "v1" }, { "created": "Sun, 7 Dec 2014 12:25:54 GMT", "version": "v2" } ]
2014-12-09
[ [ "Han", "Chengcheng", "" ] ]
Motivated by the naturalness, we study a simplified MSSM scenario where only the bino-like LSP and higgsino-like NLSP are light. We first scan the parameter space of this scenario, considering the constraints from the Higgs mass, flavor physics, electroweak precision measurements and dark matter experiments. Then in th...