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0905.2356
Alexander Bakulev P.
Alexander P. Bakulev
Resummation in Fractional APT: How many loops do we need to take into account?
7 pages, 1 figure, talk presented at the International Meeting "Excited QCD", February 8--14, 2009, Zakopane (Poland), misprints corrected
Acta Phys. Polon. Supp.2: 241-247,2009
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We give a short introduction to the Analytic Perturbation Theory (APT) and its generalization to Fractional powers -- FAPT. We describe how to treat heavy-quark thresholds in FAPT and then show how to resum perturbative series in both the one-loop APT and FAPT. As an application we consider FAPT description of the Hi...
[ { "created": "Thu, 14 May 2009 16:02:37 GMT", "version": "v1" }, { "created": "Wed, 14 Oct 2009 17:13:03 GMT", "version": "v2" } ]
2014-11-18
[ [ "Bakulev", "Alexander P.", "" ] ]
We give a short introduction to the Analytic Perturbation Theory (APT) and its generalization to Fractional powers -- FAPT. We describe how to treat heavy-quark thresholds in FAPT and then show how to resum perturbative series in both the one-loop APT and FAPT. As an application we consider FAPT description of the Higg...
1301.6212
Jean-Marc Richard
Javier Vijande, Alfredo Valcarce, Jean-Marc Richard
Adiabaticity and color mixing in tetraquark spectroscopy
5 pages, 3 figs
Phys. Rev. D87 (2013) 034040
10.1103/PhysRevD.87.034040
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We revisit the role of color mixing in the quark-model calculation of tetraquark states, and compare simple pairwise potentials to more elaborate string models with three- and four-body forces. We attempt to disentangle the improved dynamics of confinement from the approximations made in the treatment of the internal...
[ { "created": "Sat, 26 Jan 2013 05:49:20 GMT", "version": "v1" } ]
2013-03-22
[ [ "Vijande", "Javier", "" ], [ "Valcarce", "Alfredo", "" ], [ "Richard", "Jean-Marc", "" ] ]
We revisit the role of color mixing in the quark-model calculation of tetraquark states, and compare simple pairwise potentials to more elaborate string models with three- and four-body forces. We attempt to disentangle the improved dynamics of confinement from the approximations made in the treatment of the internal c...
1612.09280
Ali Alavi
S. A. Alavi, M. Dehghani Madise
Neutrino oscillations and Lorentz invariance violation
"XXV ECRS 2016 Proceedings - eConf C16-09-04.3". Contribution to the 25th edition of the European Cosmic Ray Symposium, September 5 to 9 2016, Turin, Italy. 4 pages
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Lorentz invariance is a well known fundamental concept of special relativity but its violation is predicted by some variations of quantum gravity, string theory, and some alternatives to general relativity. We study neutrino oscillation at the presence of the Lorentz invariance violation in vacuum, normal and nuclear...
[ { "created": "Thu, 29 Dec 2016 20:29:23 GMT", "version": "v1" } ]
2016-12-30
[ [ "Alavi", "S. A.", "" ], [ "Madise", "M. Dehghani", "" ] ]
Lorentz invariance is a well known fundamental concept of special relativity but its violation is predicted by some variations of quantum gravity, string theory, and some alternatives to general relativity. We study neutrino oscillation at the presence of the Lorentz invariance violation in vacuum, normal and nuclear m...
hep-ph/0111263
Walter Winter
Manfred Lindner, Walter Winter
Quark and Lepton Mass Patterns and the Absolute Neutrino Mass Scale
final version to be published in PRD, 5 pages, 2 figures, RevTeX
Phys.Rev. D66 (2002) 057303
10.1103/PhysRevD.66.057303
null
hep-ph
null
We investigate what could be learned about the absolute scale of neutrino masses from comparisons among the patterns within quark and lepton mass hierarchies. First, we observe that the existing information on neutrino masses fits quite well to the unexplained, but apparently present regularities in the quark and cha...
[ { "created": "Wed, 21 Nov 2001 15:47:48 GMT", "version": "v1" }, { "created": "Fri, 16 Aug 2002 12:01:12 GMT", "version": "v2" } ]
2009-11-07
[ [ "Lindner", "Manfred", "" ], [ "Winter", "Walter", "" ] ]
We investigate what could be learned about the absolute scale of neutrino masses from comparisons among the patterns within quark and lepton mass hierarchies. First, we observe that the existing information on neutrino masses fits quite well to the unexplained, but apparently present regularities in the quark and charg...
hep-ph/0402006
W. G. Scott
P. F. Harrison and W. G. Scott
Status of Tri/Bi-Maximal Neutrino Mixing
10 pages latex, 3 figures as eps files. Written version of a talk presented by W. G. Scott at the Second Workshop on Neutrino Oscillations in Venice (NOVE-II) Venice, Italy. 3-5 Dec 2003 (to be published in the proceedings)
null
null
RAL-TR-2004-004
hep-ph
null
Tri/bi-maximal mixing (TBM) is a specific lepton mixing ansatz, which describes the trend of the current neutrino oscillation data, in particular the recent SNO and KAMLAND results. The significant feature of TBM in this respect is |U_e2|^2=|U_m2|^2=|U_t2|^2=1/3, and we say that the nu_2 is tri-maximally mixed. We ha...
[ { "created": "Sat, 31 Jan 2004 19:20:18 GMT", "version": "v1" } ]
2007-05-23
[ [ "Harrison", "P. F.", "" ], [ "Scott", "W. G.", "" ] ]
Tri/bi-maximal mixing (TBM) is a specific lepton mixing ansatz, which describes the trend of the current neutrino oscillation data, in particular the recent SNO and KAMLAND results. The significant feature of TBM in this respect is |U_e2|^2=|U_m2|^2=|U_t2|^2=1/3, and we say that the nu_2 is tri-maximally mixed. We have...
1901.03578
Javier Vijande Asenjo
J.-M. Richard, A. Valcarce, and J. Vijande
Pentaquarks with anticharm or beauty revisited
4 pages
Phys. Lett. B790, 248-250 (2019)
10.1016/j.physletb.2019.01.031
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We use a constituent model to analyze the stability of pentaquark $\bar Q qqqq$ configurations with a heavy antiquark $\bar c$ or $\bar b$, and four light quarks $uuds$, $ddsu$ or $ssud$. The interplay between chromoelectric and chromomagnetic effects is not favorable, and, as a consequence, no bound state is found b...
[ { "created": "Fri, 11 Jan 2019 12:55:55 GMT", "version": "v1" } ]
2019-01-29
[ [ "Richard", "J. -M.", "" ], [ "Valcarce", "A.", "" ], [ "Vijande", "J.", "" ] ]
We use a constituent model to analyze the stability of pentaquark $\bar Q qqqq$ configurations with a heavy antiquark $\bar c$ or $\bar b$, and four light quarks $uuds$, $ddsu$ or $ssud$. The interplay between chromoelectric and chromomagnetic effects is not favorable, and, as a consequence, no bound state is found bel...
1303.6487
Alexander Titov
A.I. Titov, B. Kampfer, H. Takabe, and A. Hosaka
Breit-Wheeler process in very short electromagnetic pulses
32 pages, 15 figures
null
10.1103/PhysRevA.87.042106
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The generalized Breit-Wheeler process, i.e. the emission of $e^+e^-$ pairs off a probe photon propagating through a polarized short-pulsed electromagnetic (e.g.\ laser) wave field, is analyzed. We show that the production probability is determined by the interplay of two dynamical effects. The first one is related to...
[ { "created": "Tue, 26 Mar 2013 13:43:34 GMT", "version": "v1" } ]
2015-06-15
[ [ "Titov", "A. I.", "" ], [ "Kampfer", "B.", "" ], [ "Takabe", "H.", "" ], [ "Hosaka", "A.", "" ] ]
The generalized Breit-Wheeler process, i.e. the emission of $e^+e^-$ pairs off a probe photon propagating through a polarized short-pulsed electromagnetic (e.g.\ laser) wave field, is analyzed. We show that the production probability is determined by the interplay of two dynamical effects. The first one is related to t...
hep-ph/9911367
Francois Gelis
P. Aurenche (Annecy, LAPTH), F. Gelis (BNL), H. Zaraket (Annecy, LAPTH)
KLN theorem, magnetic mass, and thermal photon production
9 pages Latex document, 5 postscript figures, modified figure 5 and slightly updated section 3
Phys.Rev. D61 (2000) 116001
10.1103/PhysRevD.61.116001
LAPTH-756/99, BNL-NT-99/5
hep-ph
null
We study the infrared singularities associated to ultra-soft transverse gluons in the calculation of photon production by a quark-gluon plasma. Despite the fact that the KLN theorem works in this context and provides cancellations of infrared singularities, it does not prevent the production rate of low invariant mas...
[ { "created": "Mon, 15 Nov 1999 19:28:48 GMT", "version": "v1" }, { "created": "Thu, 20 Jan 2000 18:51:13 GMT", "version": "v2" } ]
2009-10-31
[ [ "Aurenche", "P.", "", "Annecy, LAPTH" ], [ "Gelis", "F.", "", "BNL" ], [ "Zaraket", "H.", "", "Annecy,\n LAPTH" ] ]
We study the infrared singularities associated to ultra-soft transverse gluons in the calculation of photon production by a quark-gluon plasma. Despite the fact that the KLN theorem works in this context and provides cancellations of infrared singularities, it does not prevent the production rate of low invariant mass ...
1202.5073
Heather E. Logan
Katy Hally, Heather E. Logan and Terry Pilkington
Constraints on large scalar multiplets from perturbative unitarity
10 pages, 1 figure. v2: refs added, minor additions to text, submitted to PRD
null
10.1103/PhysRevD.85.095017
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We determine the constraints on the isospin and hypercharge of a scalar electroweak multiplet from partial-wave unitarity of tree-level scattering diagrams. The constraint from SU(2)_L interactions yields T <= 7/2 (i.e., n <= 8) for a complex scalar multiplet and T <= 4 (i.e., n <= 9) for a real scalar multiplet, whe...
[ { "created": "Thu, 23 Feb 2012 01:18:13 GMT", "version": "v1" }, { "created": "Mon, 5 Mar 2012 14:54:15 GMT", "version": "v2" } ]
2013-05-30
[ [ "Hally", "Katy", "" ], [ "Logan", "Heather E.", "" ], [ "Pilkington", "Terry", "" ] ]
We determine the constraints on the isospin and hypercharge of a scalar electroweak multiplet from partial-wave unitarity of tree-level scattering diagrams. The constraint from SU(2)_L interactions yields T <= 7/2 (i.e., n <= 8) for a complex scalar multiplet and T <= 4 (i.e., n <= 9) for a real scalar multiplet, where...
hep-ph/0007272
Yuji Koike
Y. Kanazawa and Yuji Koike (Niigata Univ.)
Estimate of a Chiral-Odd Contribution to Single Transverse-Spin Asymmetry in Hadronic Pion Production
Latex file 8 pages + 5 figures attached as PS files. Some misprints are corrected. Phys. Lett. B in press
Phys.Lett. B490 (2000) 99-105
10.1016/S0370-2693(00)00969-2
null
hep-ph
null
We present an estimate of a chiral-odd contribution to the single transverse-spin asymmetry in the large-$p_T$ pion production in the nucleon-nucleon collision. In this contribution the transversity distribution and the chiral-odd spin-independent twist-3 distribution appear. Because of the smallness of the correspon...
[ { "created": "Tue, 25 Jul 2000 02:19:48 GMT", "version": "v1" }, { "created": "Fri, 11 Aug 2000 03:51:49 GMT", "version": "v2" } ]
2009-10-31
[ [ "Kanazawa", "Y.", "", "Niigata Univ." ], [ "Koike", "Yuji", "", "Niigata Univ." ] ]
We present an estimate of a chiral-odd contribution to the single transverse-spin asymmetry in the large-$p_T$ pion production in the nucleon-nucleon collision. In this contribution the transversity distribution and the chiral-odd spin-independent twist-3 distribution appear. Because of the smallness of the correspondi...
hep-ph/0506101
Adam Bzdak
Adam Bzdak
Remark on double diffractive chi meson production
8 pages, 2 figures, to be published in Physics Letters B
Phys.Lett.B619:288-292,2005
10.1016/j.physletb.2005.06.019
null
hep-ph
null
The double pomeron exchange contributions to the central inclusive and exclusive chi_c0 and chi_b0 mesons production in the Bialas-Landshoff approach are calculated. We find the model to be consistent with the preliminary CDF upper limit on double diffractive exclusive chi_c0 production cross section.
[ { "created": "Fri, 10 Jun 2005 11:09:54 GMT", "version": "v1" } ]
2011-01-27
[ [ "Bzdak", "Adam", "" ] ]
The double pomeron exchange contributions to the central inclusive and exclusive chi_c0 and chi_b0 mesons production in the Bialas-Landshoff approach are calculated. We find the model to be consistent with the preliminary CDF upper limit on double diffractive exclusive chi_c0 production cross section.
1606.07903
Gaurav Kumar Tomar
Ujjal Kumar Dey, Subhendra Mohanty, Gaurav Tomar
Leptoquarks: 750 GeV Diphoton Resonance and IceCube Events
13 pages, 3 figures, 2 tables
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The recent data from ATLAS and CMS hint at a new resonance at around 750 GeV in the diphoton invariant mass distribution. The explanation of the significantly large cross section for this diphoton resonance requires coloured particles in its loop-induced production via gluon fusion and subsequent decay to diphoton. A...
[ { "created": "Sat, 25 Jun 2016 12:32:29 GMT", "version": "v1" } ]
2016-06-28
[ [ "Dey", "Ujjal Kumar", "" ], [ "Mohanty", "Subhendra", "" ], [ "Tomar", "Gaurav", "" ] ]
The recent data from ATLAS and CMS hint at a new resonance at around 750 GeV in the diphoton invariant mass distribution. The explanation of the significantly large cross section for this diphoton resonance requires coloured particles in its loop-induced production via gluon fusion and subsequent decay to diphoton. A n...
1712.07620
Doojin Kim
Doojin Kim, Konstantin T. Matchev
How to prove that the LHC did not discover dark matter
5 pages, 5 figures
Phys. Rev. D 98, 055018 (2018)
10.1103/PhysRevD.98.055018
CERN-TH-2017-279
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
If the LHC is able to produce dark matter particles, they would appear at the end of cascade decay chains, manifesting themselves as missing transverse energy. However, such "dark matter candidates" may decay invisibly later on. We propose to test for this possibility by studying the effect of particle widths on the ...
[ { "created": "Wed, 20 Dec 2017 18:17:09 GMT", "version": "v1" } ]
2018-09-19
[ [ "Kim", "Doojin", "" ], [ "Matchev", "Konstantin T.", "" ] ]
If the LHC is able to produce dark matter particles, they would appear at the end of cascade decay chains, manifesting themselves as missing transverse energy. However, such "dark matter candidates" may decay invisibly later on. We propose to test for this possibility by studying the effect of particle widths on the ob...
hep-ph/0507231
Blazenka Melic
B. Melic, K. Passek-Kumericki, J. Trampetic
K -> pi gamma decays and space-time noncommutativity
3 pages, 1 figure included, version to appear in Phys. Rev. D
Phys.Rev. D72 (2005) 057502
10.1103/PhysRevD.72.057502
null
hep-ph
null
We propose the K -> pi gamma decay mode as a signature of the violation of the Lorentz invariance and the appearance of new physics via space-time noncommutativity.
[ { "created": "Tue, 19 Jul 2005 16:15:32 GMT", "version": "v1" }, { "created": "Wed, 14 Sep 2005 08:46:37 GMT", "version": "v2" } ]
2009-11-11
[ [ "Melic", "B.", "" ], [ "Passek-Kumericki", "K.", "" ], [ "Trampetic", "J.", "" ] ]
We propose the K -> pi gamma decay mode as a signature of the violation of the Lorentz invariance and the appearance of new physics via space-time noncommutativity.
1703.05965
Nayan Mani Nath MR
Nayan Mani Nath and Jayanta Kumar Sarma
Small-x behavior of non-singlet spin structure function and Bjorken sum rule with pQCD correction up to NNLO and Higher twist correction
21 pages, 6 figures
null
10.1007/s10773-017-3286-x
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A calculation of the non-singlet part of spin dependent structure function, $xg_1^{NS}(x,Q^2)$ and associated sum rule, the Bjorken Sum rule up to next-next-to-leading order(NNLO) is presented. We use a unified approach incorporating Regge theory and the theoretical framework of perturbative Quantum Chromodynamics. U...
[ { "created": "Fri, 17 Mar 2017 11:22:14 GMT", "version": "v1" } ]
2017-03-20
[ [ "Nath", "Nayan Mani", "" ], [ "Sarma", "Jayanta Kumar", "" ] ]
A calculation of the non-singlet part of spin dependent structure function, $xg_1^{NS}(x,Q^2)$ and associated sum rule, the Bjorken Sum rule up to next-next-to-leading order(NNLO) is presented. We use a unified approach incorporating Regge theory and the theoretical framework of perturbative Quantum Chromodynamics. Usi...
hep-ph/9801262
John Collins
John C. Collins and Andreas Freund
Proof of Factorization for Deeply Virtual Compton Scattering in QCD
14 pages, Revtex, postscript figures. Improved treatement of "endpoint/breakpoint" regions. Corrected references to earlier work
Phys. Rev. D 59, 074009 (1999)
10.1103/PhysRevD.59.074009
PSU/TH/192
hep-ph
null
We show that factorization holds for the deeply virtual Compton scattering amplitude in QCD, up to power suppressed terms, to all orders in perturbation theory. Furthermore, we show that the virtuality of the produced photon does not influence the general theorem.
[ { "created": "Mon, 12 Jan 1998 21:26:10 GMT", "version": "v1" }, { "created": "Thu, 2 Jul 1998 15:52:38 GMT", "version": "v2" } ]
2016-08-25
[ [ "Collins", "John C.", "" ], [ "Freund", "Andreas", "" ] ]
We show that factorization holds for the deeply virtual Compton scattering amplitude in QCD, up to power suppressed terms, to all orders in perturbation theory. Furthermore, we show that the virtuality of the produced photon does not influence the general theorem.
hep-ph/0211016
Wai-Yee Keung
Darwin Chang, Wai-Yee Keung, and Chen-Pin Yeh
Nambu-Goldstone Bosons in CP Violating theory with Majorana Masses
10 pages
null
10.1103/PhysRevD.67.055007
null
hep-ph
null
We derive some properties of the Nambu-Goldstone boson coupling in theories that have CP violation and Majorana masses. We show explicitly that its diagonal coupling to a Majorana fermion is pseudoscalar not scalar. This clarifies some confusion in the literature. Some potentially useful off-diagonal properties are a...
[ { "created": "Fri, 1 Nov 2002 20:16:06 GMT", "version": "v1" } ]
2009-11-07
[ [ "Chang", "Darwin", "" ], [ "Keung", "Wai-Yee", "" ], [ "Yeh", "Chen-Pin", "" ] ]
We derive some properties of the Nambu-Goldstone boson coupling in theories that have CP violation and Majorana masses. We show explicitly that its diagonal coupling to a Majorana fermion is pseudoscalar not scalar. This clarifies some confusion in the literature. Some potentially useful off-diagonal properties are als...
hep-ph/9603284
Jerzy Szwed
Wojciech Slominski and Jerzy Szwed (BNL and Jagellonian University)
QCD Structure of Leptons
10 pages, 5 figures, revised version
Phys.Lett. B387 (1996) 861-866
10.1016/0370-2693(96)01099-4
BNL-62842
hep-ph
null
The QCD structure of the electron is defined and calculated. The leading order splitting functions are extracted, showing an important contribution from $\gamma$-$Z$ interference. Leading logarithmic QCD evolution equations are constructed and solved in the asymptotic region where log$^2$ behaviour of the parton dens...
[ { "created": "Tue, 12 Mar 1996 16:33:02 GMT", "version": "v1" }, { "created": "Tue, 14 May 1996 21:01:32 GMT", "version": "v2" } ]
2009-10-28
[ [ "Slominski", "Wojciech", "", "BNL and Jagellonian University" ], [ "Szwed", "Jerzy", "", "BNL and Jagellonian University" ] ]
The QCD structure of the electron is defined and calculated. The leading order splitting functions are extracted, showing an important contribution from $\gamma$-$Z$ interference. Leading logarithmic QCD evolution equations are constructed and solved in the asymptotic region where log$^2$ behaviour of the parton densit...
0912.2631
Eliecer Hernandez-Gajate
E. Hern\'andez, J. Nieves, M. Valverde, M.J. Vicente-Vacas
Neutrino induced coherent pion production
Talk given at NUFACT09. 6 latex pages, 7 figures, 1 table
AIP Conf.Proc.1222:227-232,2010
10.1063/1.3399302
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss different parameterizations of the $C_5^A(q^2)$ $N\Delta$ axial form factor, fitted to the old Argonne bubble chamber data for pion production by neutrinos, and we use coherent pion production to test their low $q^2$ behavior. We find moderate effects that will be difficult to observe with the accuracy of ...
[ { "created": "Mon, 14 Dec 2009 12:28:25 GMT", "version": "v1" } ]
2010-05-07
[ [ "Hernández", "E.", "" ], [ "Nieves", "J.", "" ], [ "Valverde", "M.", "" ], [ "Vicente-Vacas", "M. J.", "" ] ]
We discuss different parameterizations of the $C_5^A(q^2)$ $N\Delta$ axial form factor, fitted to the old Argonne bubble chamber data for pion production by neutrinos, and we use coherent pion production to test their low $q^2$ behavior. We find moderate effects that will be difficult to observe with the accuracy of pr...
hep-ph/9312254
Sean Carroll
James A. Bryan, Sean M. Carroll, and Ted Pyne
A Texture Bestiary
34 pages, plain Tex. (Minor corrections to an old paper.)
Phys.Rev. D50 (1994) 2806-2818
10.1103/PhysRevD.50.2806
MIT-CTP-2263
hep-ph astro-ph
null
Textures are topologically nontrivial field configurations which can exist in a field theory in which a global symmetry group $G$ is broken to a subgroup $H$, if the third homotopy group $\p3$ of $G/H$ is nontrivial. We compute this group for a variety of choices of $G$ and $H$, revealing what symmetry breaking patte...
[ { "created": "Thu, 9 Dec 1993 21:49:14 GMT", "version": "v1" }, { "created": "Thu, 16 Jun 1994 18:34:11 GMT", "version": "v2" }, { "created": "Tue, 25 Jul 1995 20:24:41 GMT", "version": "v3" } ]
2009-10-22
[ [ "Bryan", "James A.", "" ], [ "Carroll", "Sean M.", "" ], [ "Pyne", "Ted", "" ] ]
Textures are topologically nontrivial field configurations which can exist in a field theory in which a global symmetry group $G$ is broken to a subgroup $H$, if the third homotopy group $\p3$ of $G/H$ is nontrivial. We compute this group for a variety of choices of $G$ and $H$, revealing what symmetry breaking pattern...
1912.00836
Yan-Jun Sun
Song-Pei Guo, Yan-Jun Sun, Wei Hong, Qi Huang, Guo-Hua Zhao
Study of the radiative decay $J/\psi\rightarrow\eta_{c}+\gamma$ in light cone sum rules
7 pages,3 figures
null
10.1016/j.nuclphysb.2020.115053
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
At present, there are many experimental and theoretical results for $J/\psi\rightarrow\eta_{c}+\gamma$ process, while the results are inconsistent based on different methods and considerations. In this paper, the light cone sum rules method is used in studying the radiative decay $J/\psi\rightarrow\eta_{c}+\gamma$. W...
[ { "created": "Mon, 2 Dec 2019 14:57:13 GMT", "version": "v1" }, { "created": "Wed, 11 Dec 2019 11:26:49 GMT", "version": "v2" } ]
2020-06-24
[ [ "Guo", "Song-Pei", "" ], [ "Sun", "Yan-Jun", "" ], [ "Hong", "Wei", "" ], [ "Huang", "Qi", "" ], [ "Zhao", "Guo-Hua", "" ] ]
At present, there are many experimental and theoretical results for $J/\psi\rightarrow\eta_{c}+\gamma$ process, while the results are inconsistent based on different methods and considerations. In this paper, the light cone sum rules method is used in studying the radiative decay $J/\psi\rightarrow\eta_{c}+\gamma$. We ...
hep-ph/0101022
Ed Stoeffhaas
M. M. Block and F. Halzen
Survival Probability of Large Rapidity Gaps in pbar p, pp, gamma p and gamma gamma Collisions
9 pages, Latex2e, uses epsfig.sty, 4 postscript figures
Phys.Rev. D63 (2001) 114004
10.1103/PhysRevD.63.114004
NUHEP 713, MADPH-00-1203
hep-ph
null
Using an eikonal analysis, we simultaneously fit a QCD-inspired parameterization of all accelerator data on forward proton-proton and antiproton-proton scattering amplitudes, together with cosmic ray data (using Glauber theory), to predict proton-air and proton-proton cross sections at energies near \sqrt s \approx 3...
[ { "created": "Tue, 2 Jan 2001 20:52:08 GMT", "version": "v1" } ]
2009-11-07
[ [ "Block", "M. M.", "" ], [ "Halzen", "F.", "" ] ]
Using an eikonal analysis, we simultaneously fit a QCD-inspired parameterization of all accelerator data on forward proton-proton and antiproton-proton scattering amplitudes, together with cosmic ray data (using Glauber theory), to predict proton-air and proton-proton cross sections at energies near \sqrt s \approx 30 ...
2306.06349
Ajay Kumar Rai
Pooja Jakhad, Juhi Oudichhya, Keval Gandhi and Ajay Kumar Rai
Identification of newly observed singly charmed baryons using relativistic flux tube model
18 Pages, 9 figures Accepted in Phys. Rev. D
null
10.1103/PhysRevD.108.014011
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We calculate the mass spectra of $\Lambda_{c}$, $\Xi_{c}$, $\Sigma_{c}$, $\Xi_{c}^{'}$, and $\Omega_{c}$ baryons in the framework of quark-diquark configuration using relativistic flux tube model. The spin-dependent interactions are included in the j-j coupling scheme to find complete mass spectra. We satisfactorily ...
[ { "created": "Sat, 10 Jun 2023 05:46:38 GMT", "version": "v1" } ]
2023-07-26
[ [ "Jakhad", "Pooja", "" ], [ "Oudichhya", "Juhi", "" ], [ "Gandhi", "Keval", "" ], [ "Rai", "Ajay Kumar", "" ] ]
We calculate the mass spectra of $\Lambda_{c}$, $\Xi_{c}$, $\Sigma_{c}$, $\Xi_{c}^{'}$, and $\Omega_{c}$ baryons in the framework of quark-diquark configuration using relativistic flux tube model. The spin-dependent interactions are included in the j-j coupling scheme to find complete mass spectra. We satisfactorily de...
1304.0286
Antonio Enrique C\'arcamo Hern\'andez acarcamo
A. E. C\'arcamo Hern\'andez, Claudio O. Dib, Alfonso R. Zerwekh
The Effect of Composite Resonances on Higgs decay into two photons
30 pages, 10 figures. Version for publication in European Physical Journal C
null
10.1140/epjc/s10052-014-2822-6
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In scenarios of strongly coupled electroweak symmetry breaking, heavy composite particles of different spin and parity may arise and cause observable effects on signals that appear at loop levels. The recently observed process of Higgs to $\gamma \gamma$ at the LHC is one of such signals. We study the new constraints...
[ { "created": "Mon, 1 Apr 2013 02:41:57 GMT", "version": "v1" }, { "created": "Tue, 8 Oct 2013 15:44:31 GMT", "version": "v2" }, { "created": "Wed, 12 Mar 2014 20:18:31 GMT", "version": "v3" }, { "created": "Tue, 8 Apr 2014 14:17:47 GMT", "version": "v4" } ]
2015-06-15
[ [ "Hernández", "A. E. Cárcamo", "" ], [ "Dib", "Claudio O.", "" ], [ "Zerwekh", "Alfonso R.", "" ] ]
In scenarios of strongly coupled electroweak symmetry breaking, heavy composite particles of different spin and parity may arise and cause observable effects on signals that appear at loop levels. The recently observed process of Higgs to $\gamma \gamma$ at the LHC is one of such signals. We study the new constraints t...
hep-ph/9809491
Lee, Ung Won
C. W. Kim and U. W. Lee
Comment on the possible electron neutrino excess in the Super-Kamiokande atmospheric neutrino experiment
8 pages, REVTEX, a revised version with more references and minor modifications
Phys.Lett. B444 (1998) 204-207
10.1016/S0370-2693(98)01382-3
KIAS-P98022
hep-ph
null
We investigate the implications of a possible excess of the electron neutrino events in the Super-Kamiokande atmospheric neutrino experiment. The excess, if real, leads to constraints on the $\nu_\mu \leftrightarrow \nu_e$, $\nu_\mu \leftrightarrow \nu_\tau$ and $\nu_e \leftrightarrow \nu_\tau$ oscillation parameters...
[ { "created": "Wed, 23 Sep 1998 03:19:34 GMT", "version": "v1" }, { "created": "Fri, 25 Sep 1998 02:44:35 GMT", "version": "v2" } ]
2016-09-06
[ [ "Kim", "C. W.", "" ], [ "Lee", "U. W.", "" ] ]
We investigate the implications of a possible excess of the electron neutrino events in the Super-Kamiokande atmospheric neutrino experiment. The excess, if real, leads to constraints on the $\nu_\mu \leftrightarrow \nu_e$, $\nu_\mu \leftrightarrow \nu_\tau$ and $\nu_e \leftrightarrow \nu_\tau$ oscillation parameters. ...
2303.01521
Jan Jerhot
Yoav Afik, Babette D\"obrich, Jan Jerhot, Yotam Soreq, Kohsaku Tobioka
Probing long-lived axions at the KOTO experiment
9 pages + appendices, 6 figures, ALPINIST code available at https://github.com/jjerhot/ALPINIST/ v2: fix bug in the production from secondary mesons, main conclusions are unchanged
Phys.Rev.D 108 (2023) 5, 055007
10.1103/PhysRevD.108.055007
IRMP-CP3-23-11, MPP-2023-40, KEK-TH-2499
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
While the main goal of the J-PARC KOTO experiment is to measure the rare decay $K_L \to \pi^0 \nu \bar \nu$, the unique setup of KOTO raises the possibility to search for physics beyond the Standard Model, in an attempt to probe parts of the parameter space which are not covered by other experiments. In this paper, w...
[ { "created": "Thu, 2 Mar 2023 19:00:01 GMT", "version": "v1" }, { "created": "Wed, 14 Jun 2023 07:07:51 GMT", "version": "v2" }, { "created": "Tue, 26 Sep 2023 23:28:43 GMT", "version": "v3" } ]
2023-09-28
[ [ "Afik", "Yoav", "" ], [ "Döbrich", "Babette", "" ], [ "Jerhot", "Jan", "" ], [ "Soreq", "Yotam", "" ], [ "Tobioka", "Kohsaku", "" ] ]
While the main goal of the J-PARC KOTO experiment is to measure the rare decay $K_L \to \pi^0 \nu \bar \nu$, the unique setup of KOTO raises the possibility to search for physics beyond the Standard Model, in an attempt to probe parts of the parameter space which are not covered by other experiments. In this paper, we ...
2301.10791
Arghyajit Datta
Arghyajit Datta, Rishav Roshan, Arunansu Sil
Flavor Leptogenesis During Reheating Era
19 pages, 10 figures, 2 tables, version accepted for publication in Physical Review D
null
null
null
hep-ph astro-ph.CO
http://creativecommons.org/licenses/by/4.0/
Recently, it has been shown that the presence of a non-instantaneous era of reheating can significantly alter the charged lepton(s) equilibration temperature(s) which plays important role in flavor leptogenesis. In this work, we extend the analysis to a more general situation where RHNs are also produced from the dec...
[ { "created": "Wed, 25 Jan 2023 19:05:41 GMT", "version": "v1" }, { "created": "Fri, 14 Jul 2023 13:44:30 GMT", "version": "v2" } ]
2023-07-17
[ [ "Datta", "Arghyajit", "" ], [ "Roshan", "Rishav", "" ], [ "Sil", "Arunansu", "" ] ]
Recently, it has been shown that the presence of a non-instantaneous era of reheating can significantly alter the charged lepton(s) equilibration temperature(s) which plays important role in flavor leptogenesis. In this work, we extend the analysis to a more general situation where RHNs are also produced from the decay...
hep-ph/0405296
Dinesh Singh
Dinesh Singh, Nader Mobed, Giorgio Papini
Helicity Precession of Spin-1/2 Particles in Weak Inertial and Gravitational Fields
17 pages with no figures. Submitted to Nuclear Physics B
J.Phys. A37 (2004) 8329-8348
10.1088/0305-4470/37/34/010
null
hep-ph gr-qc hep-th
null
We calculate the helicity and chirality effects experienced by a spin-1/2 particle subjected to classical electromagnetic and gravitational fields. The helicity evolution is then determined in the non-relativistic, relativistic, and ultra-relativistic regimes. We find that inertia-gravitation can distinguish between ...
[ { "created": "Sun, 30 May 2004 15:06:04 GMT", "version": "v1" } ]
2015-06-25
[ [ "Singh", "Dinesh", "" ], [ "Mobed", "Nader", "" ], [ "Papini", "Giorgio", "" ] ]
We calculate the helicity and chirality effects experienced by a spin-1/2 particle subjected to classical electromagnetic and gravitational fields. The helicity evolution is then determined in the non-relativistic, relativistic, and ultra-relativistic regimes. We find that inertia-gravitation can distinguish between he...
1501.03106
Yuri V. Kovchegov
Giovanni A. Chirilli, Yuri V. Kovchegov, Douglas E. Wertepny
Classical Gluon Production Amplitude for Nucleus-Nucleus Collisions: First Saturation Correction in the Projectile
37 pages, 24 figures
null
10.1007/JHEP03(2015)015
null
hep-ph hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the classical single-gluon production amplitude in nucleus-nucleus collisions including the first saturation correction in one of the nuclei (the projectile) while keeping multiple-rescattering (saturation) corrections to all orders in the other nucleus (the target). In our approximation only two nucleon...
[ { "created": "Tue, 13 Jan 2015 18:54:18 GMT", "version": "v1" } ]
2015-06-23
[ [ "Chirilli", "Giovanni A.", "" ], [ "Kovchegov", "Yuri V.", "" ], [ "Wertepny", "Douglas E.", "" ] ]
We calculate the classical single-gluon production amplitude in nucleus-nucleus collisions including the first saturation correction in one of the nuclei (the projectile) while keeping multiple-rescattering (saturation) corrections to all orders in the other nucleus (the target). In our approximation only two nucleons ...
hep-ph/0406279
A. Perez-Lorenzana
Abdel P\'erez-Lorenzana
An Introduction to the Brane World
Typos corrected. 18 pages. Lectures given at the V Mexican Workshop on Gravitation and Mathematical Physics, Morelia, Mexico. November 24 - 29, 2003
null
null
null
hep-ph
null
The study of the so called brane world models has introduced completely new ways of looking up on standard problems in many areas of theoretical physics. Inspired in the recent developments of string theory, the Brane World picture involves the introduction of new extra dimensions beyond the four we see, which could ...
[ { "created": "Thu, 24 Jun 2004 19:23:11 GMT", "version": "v1" }, { "created": "Wed, 6 Oct 2004 17:44:38 GMT", "version": "v2" } ]
2007-05-23
[ [ "Pérez-Lorenzana", "Abdel", "" ] ]
The study of the so called brane world models has introduced completely new ways of looking up on standard problems in many areas of theoretical physics. Inspired in the recent developments of string theory, the Brane World picture involves the introduction of new extra dimensions beyond the four we see, which could ei...
1905.02777
Mauro Anselmino
Mauro Anselmino, Raj Kishore and Asmita Mukherjee
The Polarising Fragmentation Function and the Lambda polarisation in e+ e- processes
8 pages, 4 figures. Version accepted for publication in PRD; minor changes, ackowledgements and references added
Phys. Rev. D 100, 014029 (2019)
10.1103/PhysRevD.100.014029
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The surprising polarisation of Lambdas and other hyperons measured in many unpolarised hadronic processes, p N --> Lambda X, has been a long standing challenge for QCD phenomenology. One possible explanation was suggested, related to non perturbative properties of the quark hadronisation process, and encoded in the s...
[ { "created": "Tue, 7 May 2019 19:19:19 GMT", "version": "v1" }, { "created": "Wed, 17 Jul 2019 07:57:05 GMT", "version": "v2" } ]
2019-08-07
[ [ "Anselmino", "Mauro", "" ], [ "Kishore", "Raj", "" ], [ "Mukherjee", "Asmita", "" ] ]
The surprising polarisation of Lambdas and other hyperons measured in many unpolarised hadronic processes, p N --> Lambda X, has been a long standing challenge for QCD phenomenology. One possible explanation was suggested, related to non perturbative properties of the quark hadronisation process, and encoded in the so-...
0909.3900
Guy F. de T\'eramond
Guy F. de Teramond and Stanley J. Brodsky
Light-Front Holography and Gauge/Gravity Duality: The Light Meson and Baryon Spectra
8 pages, 2 figures, added references. Talk presented by GdT at Light Cone 2009: Relativistic Hadronic And Particle Physics, 8-13 Jul 2009, Sao Jose dos Campos, Brazil
Nucl.Phys.Proc.Suppl.199:89-96,2010
10.1016/j.nuclphysbps.2010.02.010
SLAC-PUB-13779
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Starting from the bound state Hamiltonian equation of motion in QCD, we derive relativistic light-front wave equations in terms of an invariant impact variable $\zeta$ which measures the separation of the quark and gluonic constituents within the hadron at equal light-front time. These equations of motion in physical...
[ { "created": "Tue, 22 Sep 2009 03:40:19 GMT", "version": "v1" }, { "created": "Mon, 28 Sep 2009 17:43:12 GMT", "version": "v2" } ]
2014-11-20
[ [ "de Teramond", "Guy F.", "" ], [ "Brodsky", "Stanley J.", "" ] ]
Starting from the bound state Hamiltonian equation of motion in QCD, we derive relativistic light-front wave equations in terms of an invariant impact variable $\zeta$ which measures the separation of the quark and gluonic constituents within the hadron at equal light-front time. These equations of motion in physical s...
1602.02566
Vladimir Petrov
V.A. Petrov and A.P. Samokhin
On a Possible Stationary Point in High-Energy Scattering
5 pages, 1 fugure
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss a curious observation: at energies from the ISR and up to the LHC, inclusively, the differential cross-section of elastic proton-proton scattering remains almost energy-independent at the transferred momentum t =-0.21 GeV^2 at the level of 7,5 mb/GeV^2.The latter value can be considered as a prediction for...
[ { "created": "Mon, 8 Feb 2016 13:54:59 GMT", "version": "v1" } ]
2016-02-09
[ [ "Petrov", "V. A.", "" ], [ "Samokhin", "A. P.", "" ] ]
We discuss a curious observation: at energies from the ISR and up to the LHC, inclusively, the differential cross-section of elastic proton-proton scattering remains almost energy-independent at the transferred momentum t =-0.21 GeV^2 at the level of 7,5 mb/GeV^2.The latter value can be considered as a prediction for d...
hep-ph/0207303
Mijail Braun
M.A. Braun, E.G. Ferreiro, C. Pajares and D. Treleani
On the jet spectrum in nucleus-nucleus interactions
text in LaTex, 4 figures in PS
Nucl.Phys. A723 (2003) 249-268
10.1016/S0375-9474(03)01314-9
null
hep-ph
null
We derive the inclusive transverse spectrum of minijets in nuclear collisions at very high energies by assuming that the nuclear S-matrix factorizes into a product of elastic S-matrices for elementary partonic collisions. Interference effects and, in particular, the contribution of loop diagrams are fully taken into ...
[ { "created": "Wed, 24 Jul 2002 19:04:48 GMT", "version": "v1" } ]
2015-06-25
[ [ "Braun", "M. A.", "" ], [ "Ferreiro", "E. G.", "" ], [ "Pajares", "C.", "" ], [ "Treleani", "D.", "" ] ]
We derive the inclusive transverse spectrum of minijets in nuclear collisions at very high energies by assuming that the nuclear S-matrix factorizes into a product of elastic S-matrices for elementary partonic collisions. Interference effects and, in particular, the contribution of loop diagrams are fully taken into ac...
hep-ph/0007058
Alexander Belyaev
A.Belyaev
Single Top Quark in the SM and Beyond
5 pages, LaTex, Presented at 8th International Workshop on Deep-Inelastic Scattering (DIS'2000), Liverpool, England, 25--30 April 2000
null
null
CERN-TH/2000-191
hep-ph
null
The prospects of single top quark physics at colliders of the TeV energy scale are discussed. Single top quark study allows a direct measurement of the $Wtb$ vertex and a precise probing physics beyond the Standard Model in various scenarios.
[ { "created": "Thu, 6 Jul 2000 13:42:18 GMT", "version": "v1" }, { "created": "Fri, 7 Jul 2000 19:13:46 GMT", "version": "v2" } ]
2007-05-23
[ [ "Belyaev", "A.", "" ] ]
The prospects of single top quark physics at colliders of the TeV energy scale are discussed. Single top quark study allows a direct measurement of the $Wtb$ vertex and a precise probing physics beyond the Standard Model in various scenarios.
hep-ph/0311038
esseur Aldo Deandrea
Roberto Casalbuoni, Aldo Deandrea, Micaela Oertel
Little Higgs Models and Precision Electroweak Data
Misprint in eps3 for the custodial model corrected and additional discussion of the triplet higgs
JHEP 0402 (2004) 032
10.1088/1126-6708/2004/02/032
FIRENZE DFF-408/10/03 LYCEN-2003-39
hep-ph
null
We study the low energy limit of Little Higgs models. The method consists in eliminating the heavy fields using their classical equations of motion in the infinite mass limit. After the elimination of the heavy degrees of freedom we can directly read off deviations from the precision electroweak data. We also examine...
[ { "created": "Tue, 4 Nov 2003 09:43:01 GMT", "version": "v1" }, { "created": "Fri, 14 Nov 2003 15:19:52 GMT", "version": "v2" }, { "created": "Mon, 8 Mar 2004 09:23:30 GMT", "version": "v3" }, { "created": "Tue, 29 Jun 2004 15:26:39 GMT", "version": "v4" } ]
2009-11-10
[ [ "Casalbuoni", "Roberto", "" ], [ "Deandrea", "Aldo", "" ], [ "Oertel", "Micaela", "" ] ]
We study the low energy limit of Little Higgs models. The method consists in eliminating the heavy fields using their classical equations of motion in the infinite mass limit. After the elimination of the heavy degrees of freedom we can directly read off deviations from the precision electroweak data. We also examine t...
1811.01947
Debtosh Chowdhury
Debtosh Chowdhury, Emilian Dudas, Ma\'ira Dutra, Yann Mambrini
Moduli Portal Dark Matter
11 pages, 3 figures; typos fixed, references added
Phys. Rev. D 99, 095028 (2019)
10.1103/PhysRevD.99.095028
CPHT-RR099.102018, LPT-Orsay 18-83
hep-ph astro-ph.CO astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show that moduli fields as mediators between the Standard Model and the dark sector can naturally lead to the observed relic abundance. Indeed, even if moduli are very massive, the nature of their couplings with matter and gauge fields allows producing a sufficiently large amount of dark matter in the early Univer...
[ { "created": "Mon, 5 Nov 2018 19:00:00 GMT", "version": "v1" }, { "created": "Thu, 8 Nov 2018 10:52:20 GMT", "version": "v2" } ]
2019-05-29
[ [ "Chowdhury", "Debtosh", "" ], [ "Dudas", "Emilian", "" ], [ "Dutra", "Maíra", "" ], [ "Mambrini", "Yann", "" ] ]
We show that moduli fields as mediators between the Standard Model and the dark sector can naturally lead to the observed relic abundance. Indeed, even if moduli are very massive, the nature of their couplings with matter and gauge fields allows producing a sufficiently large amount of dark matter in the early Universe...
hep-ph/0109073
Tian-jun Li
Jing Jiang, Tianjun Li
Self-Tuning and de Sitter Brane Intersections in the 6-Dimensional Brane Models
Latex, 11 pages
Eur.Phys.J.C26:473-478,2003
10.1140/epjc/s2002-01076-3
null
hep-ph hep-th
null
We study the self-tuning of general brane junctions and brane networks on the 6-dimensional space-time. For the general brane junctions, there may exist one fine-tuning among the brane tensions. For the brane networks, similar to the 5-dimensional self-tuning brane models, the brane tensions can be set arbitrarily an...
[ { "created": "Mon, 10 Sep 2001 05:22:52 GMT", "version": "v1" } ]
2009-01-07
[ [ "Jiang", "Jing", "" ], [ "Li", "Tianjun", "" ] ]
We study the self-tuning of general brane junctions and brane networks on the 6-dimensional space-time. For the general brane junctions, there may exist one fine-tuning among the brane tensions. For the brane networks, similar to the 5-dimensional self-tuning brane models, the brane tensions can be set arbitrarily and ...
hep-ph/0301003
Paolo Nason
Paolo Nason
Heavy Flavour Production
6 pages, 3 postscript figures. Invited review talk at the First International Workshop on Frontier Science, "Charm, Beauty and CP", October 6-11, 2002, INFN Laboratory, Frascati, Italy. To appear on Frascati Physics Series
null
null
Bicocca-FT-03-01
hep-ph
null
I discuss few recent developments in Heavy Flavour Production phenomenology.
[ { "created": "Thu, 2 Jan 2003 13:31:44 GMT", "version": "v1" } ]
2007-05-23
[ [ "Nason", "Paolo", "" ] ]
I discuss few recent developments in Heavy Flavour Production phenomenology.
hep-ph/9805391
Hu Haiming
Feng-Cai Ma, Hai-Ming Hu
Testing Quantum Mechanics in Nuetrino Oscillation
LaTeX, 12 pages including 2 eps figures
null
null
null
hep-ph
null
A testing of quantum mechanics in nuetrino oscillation is presented. The quantum mechanics violation motivated by arguements of quantum gravity is investigated in neutrino system. The formula of density matrix and oscillation probability of nuetrinos with and without the effect of quantum mechanics violation are deri...
[ { "created": "Wed, 20 May 1998 12:47:11 GMT", "version": "v1" } ]
2007-05-23
[ [ "Ma", "Feng-Cai", "" ], [ "Hu", "Hai-Ming", "" ] ]
A testing of quantum mechanics in nuetrino oscillation is presented. The quantum mechanics violation motivated by arguements of quantum gravity is investigated in neutrino system. The formula of density matrix and oscillation probability of nuetrinos with and without the effect of quantum mechanics violation are derive...
1306.2318
Jonathan Feng
Jonathan L. Feng, Philipp Kant, Stefano Profumo, David Sanford
Three-Loop Corrections to the Higgs Boson Mass and Implications for Supersymmetry at the LHC
4 pages; v2: enhanced discussion of comparison with other results, added reference; v3: published version
null
10.1103/PhysRevLett.111.131802
UCI-TR-2013-08, HU-EP-13/28, SFB/CPP-13-37, CALT 68-2939
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In supersymmetric models with minimal particle content and without left-right squark mixing, the conventional wisdom is that the 125.6 GeV Higgs boson mass implies top squark masses of O(10) TeV, far beyond the reach of colliders. This conclusion is subject to significant theoretical uncertainties, however, and we pr...
[ { "created": "Mon, 10 Jun 2013 20:00:06 GMT", "version": "v1" }, { "created": "Fri, 5 Jul 2013 15:19:28 GMT", "version": "v2" }, { "created": "Wed, 11 Sep 2013 19:59:33 GMT", "version": "v3" } ]
2013-10-02
[ [ "Feng", "Jonathan L.", "" ], [ "Kant", "Philipp", "" ], [ "Profumo", "Stefano", "" ], [ "Sanford", "David", "" ] ]
In supersymmetric models with minimal particle content and without left-right squark mixing, the conventional wisdom is that the 125.6 GeV Higgs boson mass implies top squark masses of O(10) TeV, far beyond the reach of colliders. This conclusion is subject to significant theoretical uncertainties, however, and we prov...
hep-ph/0112183
Dmitri Ryzhikh
L. V. Laperashvili (ITEP, Moscow, Russia), D. A. Ryzhikh (ITEP, Moscow, Russia)
Multiple Point Model and Phase Transition Couplings in the Two-Loop Approximation of Dual Scalar Electrodynamics
10 pages, 3 figures, talk at the International Workshop on "What Comes Beyond the Standard Model?", Bled, Slovenia, 17 - 27 July 2001
null
null
null
hep-ph
null
The phase transition "Coulomb-confinement" in the U(1) regularized gauge theory is considered in the framework of dual Abelian Higgs model of scalar monopoles (shortly: Higgs monopole model). The effective potential analogous to the Coleman-Weinberg's one, improved by the renormalization group equation, is constructe...
[ { "created": "Thu, 13 Dec 2001 14:36:27 GMT", "version": "v1" }, { "created": "Mon, 17 Dec 2001 13:06:57 GMT", "version": "v2" } ]
2007-05-23
[ [ "Laperashvili", "L. V.", "", "ITEP, Moscow, Russia" ], [ "Ryzhikh", "D. A.", "", "ITEP,\n Moscow, Russia" ] ]
The phase transition "Coulomb-confinement" in the U(1) regularized gauge theory is considered in the framework of dual Abelian Higgs model of scalar monopoles (shortly: Higgs monopole model). The effective potential analogous to the Coleman-Weinberg's one, improved by the renormalization group equation, is constructed,...
1104.1344
Defu Hou
Zi-qiang Zhang, Defu Hou, Hai-cang Ren, and Lei Yin
The Subleading Term of the Strong Coupling Expansion of the Heavy-Quark Potential in a $\mathcal N=4$ Super Yang-Mills Plasma
17 pages in JHEP3, typos fixed, updated version to be published in JHEP
JHEP 1107:035,2011
10.1007/JHEP07(2011)035
null
hep-ph hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Applying the AdS/CFT correspondence, the expansion of the heavy-quark potential of the ${\cal N}$ supersymmetric Yang-Mills theory at large $N_c$ is carried out to the sub-leading term in the large 't Hooft coupling at nonzero temperatures. The strong coupling corresponds to the semi-classical expansion of the string...
[ { "created": "Thu, 7 Apr 2011 14:41:45 GMT", "version": "v1" }, { "created": "Fri, 6 May 2011 13:55:04 GMT", "version": "v2" }, { "created": "Tue, 21 Jun 2011 15:02:39 GMT", "version": "v3" } ]
2015-03-19
[ [ "Zhang", "Zi-qiang", "" ], [ "Hou", "Defu", "" ], [ "Ren", "Hai-cang", "" ], [ "Yin", "Lei", "" ] ]
Applying the AdS/CFT correspondence, the expansion of the heavy-quark potential of the ${\cal N}$ supersymmetric Yang-Mills theory at large $N_c$ is carried out to the sub-leading term in the large 't Hooft coupling at nonzero temperatures. The strong coupling corresponds to the semi-classical expansion of the string-s...
hep-ph/9802366
A. D. Martin
A. D. Martin, M. G. Ryskin
Higher twists in deep inelastic scattering
The sign of the gluon rescattering twist-4 component has been corrected and the manuscript modified accordingly
Phys.Lett. B431 (1998) 395-404
10.1016/S0370-2693(98)00571-1
DTP/98/04
hep-ph
null
We perform an exploratory study of higher twist contributions to deep inelastic scattering. We estimate the size of two major sources of higher twist, namely absorptive corrections and the vector meson dominance (VMD) contribution. We find that they give a sizeable higher twist component of F_2. For example at x = 0....
[ { "created": "Thu, 19 Feb 1998 18:39:49 GMT", "version": "v1" }, { "created": "Thu, 26 Mar 1998 09:51:52 GMT", "version": "v2" } ]
2009-10-31
[ [ "Martin", "A. D.", "" ], [ "Ryskin", "M. G.", "" ] ]
We perform an exploratory study of higher twist contributions to deep inelastic scattering. We estimate the size of two major sources of higher twist, namely absorptive corrections and the vector meson dominance (VMD) contribution. We find that they give a sizeable higher twist component of F_2. For example at x = 0.01...
1510.03865
Juan Rojo
Jon Butterworth, Stefano Carrazza, Amanda Cooper-Sarkar, Albert De Roeck, Joel Feltesse, Stefano Forte, Jun Gao, Sasha Glazov, Joey Huston, Zahari Kassabov, Ronan McNulty, Andreas Morsch, Pavel Nadolsky, Voica Radescu, Juan Rojo and Robert Thorne
PDF4LHC recommendations for LHC Run II
65 pages, 20 figures, additional benchmark comparison plots available from http://www.hep.ucl.ac.uk/pdf4lhc/mc2h-gallery/website. v2, accepted for publication in Journal of Physics G
J. Phys. G: Nucl. Part. Phys. 43 023001 (2016)
10.1088/0954-3899/43/2/023001
OUTP-15-17P, SMU-HEP-15-12, TIF-UNIMI-2015-14, LCTS/2015-27
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We provide an updated recommendation for the usage of sets of parton distribution functions (PDFs) and the assessment of PDF and PDF+$\alpha_s$ uncertainties suitable for applications at the LHC Run II. We review developments since the previous PDF4LHC recommendation, and discuss and compare the new generation of PDF...
[ { "created": "Tue, 13 Oct 2015 20:14:09 GMT", "version": "v1" }, { "created": "Thu, 12 Nov 2015 15:51:25 GMT", "version": "v2" } ]
2016-01-08
[ [ "Butterworth", "Jon", "" ], [ "Carrazza", "Stefano", "" ], [ "Cooper-Sarkar", "Amanda", "" ], [ "De Roeck", "Albert", "" ], [ "Feltesse", "Joel", "" ], [ "Forte", "Stefano", "" ], [ "Gao", "Jun", "" ], ...
We provide an updated recommendation for the usage of sets of parton distribution functions (PDFs) and the assessment of PDF and PDF+$\alpha_s$ uncertainties suitable for applications at the LHC Run II. We review developments since the previous PDF4LHC recommendation, and discuss and compare the new generation of PDFs,...
1903.12635
Vasiliki Mitsou
Vasiliki A. Mitsou
Monopole production via photon fusion at the LHC
17 pages, 25 figures; invited talk in 18th Hellenic School and Workshops on Elementary Particle Physics and Gravity (CORFU2018), 31 Aug - 28 Sep 2018, Corfu, Greece, presenting arXiv:1808.08942 [hep-ph] results; to appear in Proceedings of Science
PoS CORFU2018 (2019) 047
10.22323/1.347.0047
IFIC/19-18
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The existence of magnetic monopoles, also predicted in some GUT theories, would symmetrise Maxwell equations and explain the charge quantisation. Searches for them are being performed in cosmic telescopes as well as in collider experiments, such as MoEDAL and ATLAS. In this report, we focus on the, least explored, ph...
[ { "created": "Fri, 29 Mar 2019 17:35:20 GMT", "version": "v1" } ]
2020-02-06
[ [ "Mitsou", "Vasiliki A.", "" ] ]
The existence of magnetic monopoles, also predicted in some GUT theories, would symmetrise Maxwell equations and explain the charge quantisation. Searches for them are being performed in cosmic telescopes as well as in collider experiments, such as MoEDAL and ATLAS. In this report, we focus on the, least explored, phot...
1701.00329
Rajesh Sangem
Asmita Mukherjee and Sangem Rajesh
Accessing unpolarized and linearly polarized gluon TMDs through quarkonium production
5 pages, 3 figures, Conference proceedings based on a talk delivered at 22 nd International Spin Symposium, 2016, UIUC
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present the study of accessing unpolarized and linearly polarized gluon TMDs in J/{\psi} and {\Upsilon}(1S) production in unpolarized proton-proton collision at LHC, RHIC and AFTER energies. Non- relativistic QCD based color octet model (COM) is used for estimating quarkonium production rates within transverse mom...
[ { "created": "Mon, 2 Jan 2017 08:02:45 GMT", "version": "v1" } ]
2017-01-03
[ [ "Mukherjee", "Asmita", "" ], [ "Rajesh", "Sangem", "" ] ]
We present the study of accessing unpolarized and linearly polarized gluon TMDs in J/{\psi} and {\Upsilon}(1S) production in unpolarized proton-proton collision at LHC, RHIC and AFTER energies. Non- relativistic QCD based color octet model (COM) is used for estimating quarkonium production rates within transverse momen...
hep-ph/9801294
null
Mayumi Aoki (Graduate School of Humanities and Sciences, Ochanomizu University), Noriyuki Oshimo (Institute for Cosmic Ray Research,University of Tokyo)
CP violation in the top-quark system through light squarks
18 pages, 5 figures
Nucl.Phys. B531 (1998) 49-64
10.1016/S0550-3213(98)00428-3
ICRR-Report-405-97-28, OCHA-PP-108
hep-ph
null
We study a decay rate asymmetry of the top quark in the supersymmetric standard model, taking into account the constraints from the electric dipole moments of the neutron and the electron. One CP-violating phase contained in the mass-squared matrices of squarks and sleptons is allowed to have an unsuppressed value, e...
[ { "created": "Wed, 14 Jan 1998 10:30:53 GMT", "version": "v1" } ]
2009-10-31
[ [ "Aoki", "Mayumi", "", "Graduate School of Humanities and Sciences, Ochanomizu\n University" ], [ "Oshimo", "Noriyuki", "", "Institute for Cosmic Ray Research,University of\n Tokyo" ] ]
We study a decay rate asymmetry of the top quark in the supersymmetric standard model, taking into account the constraints from the electric dipole moments of the neutron and the electron. One CP-violating phase contained in the mass-squared matrices of squarks and sleptons is allowed to have an unsuppressed value, eve...
2311.06977
Piotr Bargiela
Piotr Bargiela
High-precision scattering amplitudes for LHC phenomenology
DPhil thesis, University of Oxford: 158 pages, 52 figures, 4 tables, based on arXiv:2211.13595, arXiv:2212.06287, and arXiv:2212.14069
null
10.5287/ora-5rqgkyeje
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, we consider scattering amplitudes relevant for high-precision Large Hadron Collider (LHC) phenomenology. We analyse the general structure of amplitudes, and we review state-of-the-art methods for computing them. We discuss advantages and shortcomings of these methods, and we point out the bottlenecks in...
[ { "created": "Sun, 12 Nov 2023 22:37:18 GMT", "version": "v1" } ]
2023-11-14
[ [ "Bargiela", "Piotr", "" ] ]
In this work, we consider scattering amplitudes relevant for high-precision Large Hadron Collider (LHC) phenomenology. We analyse the general structure of amplitudes, and we review state-of-the-art methods for computing them. We discuss advantages and shortcomings of these methods, and we point out the bottlenecks in m...
hep-ph/9810364
Ira Z. Rothstein
C. Glenn Boyd, Adam K. Leibovich, and Ira Z. Rothstein (Carnegie Mellon Univ.)
J/psi Production at LEP: Revisited and Resummed
LATEX, 17 pages, 3 figures included. References to ALEPH collaboration changed
Phys.Rev. D59 (1999) 054016
10.1103/PhysRevD.59.054016
CMU-98-03
hep-ph
null
We present the leading order differential and total rates for J/\psi production at LEP. By leading order we mean all terms of the form alpha_s[alpha_s log(M_Z^2/M_{psi}^2)]^n and alpha_s^{n+1} log^l(z^2) log^m(M_Z^2/M_{psi}^2), (l+m=2n-1), in the regions z=2E_psi/M_Z ~ O(1) and z << 1, respectively. In the intermedia...
[ { "created": "Wed, 14 Oct 1998 22:47:34 GMT", "version": "v1" }, { "created": "Mon, 19 Oct 1998 17:43:38 GMT", "version": "v2" } ]
2009-10-31
[ [ "Boyd", "C. Glenn", "", "Carnegie\n Mellon Univ." ], [ "Leibovich", "Adam K.", "", "Carnegie\n Mellon Univ." ], [ "Rothstein", "Ira Z.", "", "Carnegie\n Mellon Univ." ] ]
We present the leading order differential and total rates for J/\psi production at LEP. By leading order we mean all terms of the form alpha_s[alpha_s log(M_Z^2/M_{psi}^2)]^n and alpha_s^{n+1} log^l(z^2) log^m(M_Z^2/M_{psi}^2), (l+m=2n-1), in the regions z=2E_psi/M_Z ~ O(1) and z << 1, respectively. In the intermediate...
1509.06135
Lukasz Bibrzycki
L. Bibrzycki (1), R. Kaminski (2) ((1) Pedagogical University of Cracow, (2) H. Niewodniczanski Institute of Nuclear Physics PAN)
Scalar isovector resonance photoproduction through the final state meson-meson interactions
9 pages, 7 figures
Int. J. of Mod. Phys. A 31, 1650139 (2016)
10.1142/S0217751X16501396
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We construct the amplitudes of $\pi\eta$ photoproduction taking into account the effects of the $\pi\eta$ - $K\bar K$ interchannel coupling. The idea of our model is close to the molecular description of scalar resonances with exception that apart from the pseudoscalar loops we include also vector mesons in the inter...
[ { "created": "Mon, 21 Sep 2015 08:07:41 GMT", "version": "v1" }, { "created": "Mon, 26 Oct 2015 17:45:19 GMT", "version": "v2" } ]
2016-08-29
[ [ "Bibrzycki", "L.", "" ], [ "Kaminski", "R.", "" ] ]
We construct the amplitudes of $\pi\eta$ photoproduction taking into account the effects of the $\pi\eta$ - $K\bar K$ interchannel coupling. The idea of our model is close to the molecular description of scalar resonances with exception that apart from the pseudoscalar loops we include also vector mesons in the interme...
2102.08637
Dian-Yong Chen
Qi Wu, Dian-Yong Chen, Takayuki Matsuki
A Phenomenological analysis on isospin-violating decay of $X(3872)$
11 pages, 7 figures, accepted for publication in the Eur.Phys.J.C
null
10.1140/epjc/s10052-021-08984-2
null
hep-ph hep-ex
http://creativecommons.org/publicdomain/zero/1.0/
In a molecular scenario, we investigate the isospin-breaking hidden charm decay processes of $X(3872)$, i.e., $X(3872) \to \pi^+ \pi^- J/\psi$, $X(3872) \to \pi^+ \pi^- \pi^0 J/\psi$, and $X(3872)\to \pi^0\chi_{cJ}$. We assume that the source of the strong isospin violation comes from the different coupling strengths...
[ { "created": "Wed, 17 Feb 2021 09:04:26 GMT", "version": "v1" } ]
2021-03-17
[ [ "Wu", "Qi", "" ], [ "Chen", "Dian-Yong", "" ], [ "Matsuki", "Takayuki", "" ] ]
In a molecular scenario, we investigate the isospin-breaking hidden charm decay processes of $X(3872)$, i.e., $X(3872) \to \pi^+ \pi^- J/\psi$, $X(3872) \to \pi^+ \pi^- \pi^0 J/\psi$, and $X(3872)\to \pi^0\chi_{cJ}$. We assume that the source of the strong isospin violation comes from the different coupling strengths o...
0909.5165
Alison Fowler
A. C. Fowler, G. Weiglein
Precise Predictions for Higgs Production in Neutralino Decays in the Complex MSSM
24 pages, 6 figures
JHEP 1001:108,2010
10.1007/JHEP01(2010)108
IPPP/09/77, DCPT/09/154
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Complete one-loop results are obtained for the class of processes chi^0_i->chi^0_j h_a in the MSSM where all parameters entering this process beyond lowest order are allowed to have arbitrary CP-violating phases. An on-shell renormalisation scheme is worked out for the chargino-neutralino sector that properly takes a...
[ { "created": "Mon, 28 Sep 2009 19:42:48 GMT", "version": "v1" } ]
2010-02-05
[ [ "Fowler", "A. C.", "" ], [ "Weiglein", "G.", "" ] ]
Complete one-loop results are obtained for the class of processes chi^0_i->chi^0_j h_a in the MSSM where all parameters entering this process beyond lowest order are allowed to have arbitrary CP-violating phases. An on-shell renormalisation scheme is worked out for the chargino-neutralino sector that properly takes acc...
0812.0722
Nikolay Ivanov
N. Ya. Ivanov
The Ratio $R=F_L/F_T$ in DIS as a Probe of the Charm Content of the Proton
10 pages, 4 figures, revtex4
Nucl.Phys.B814:142-155,2009
10.1016/j.nuclphysb.2009.01.013
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze the Callan-Gross ratio $R(x,Q^2)=F_L/F_T$ in heavy-quark leptoproduction as a probe of the charm content of the proton. To estimate the charm-initiated contributions, we use the ACOT($\chi$) variable-flavor-number scheme. Our analysis shows that charm densities of the recent CTEQ sets of parton distributio...
[ { "created": "Wed, 3 Dec 2008 14:12:30 GMT", "version": "v1" } ]
2014-11-18
[ [ "Ivanov", "N. Ya.", "" ] ]
We analyze the Callan-Gross ratio $R(x,Q^2)=F_L/F_T$ in heavy-quark leptoproduction as a probe of the charm content of the proton. To estimate the charm-initiated contributions, we use the ACOT($\chi$) variable-flavor-number scheme. Our analysis shows that charm densities of the recent CTEQ sets of parton distributions...
hep-ph/9505272
Xing Zhi-Zhong
Zhi-zhong Xing
Effect of $K^{0}-\bar{K}^{0}$ Mixing on $CP$ Asymmetries in Weak Decays of $D$ and $B$ Mesons
10 Latex pages + 2 figures. Phys. Lett. B (in printing)
Phys.Lett. B353 (1995) 313-318; Erratum-ibid. B363 (1995) 266
10.1016/0370-2693(95)92845-D
LMU-06(a)/95 (March 1995)
hep-ph hep-ex
null
Within the standard electroweak model we carry out an instructive analysis of the effect of $K^{0}-\bar{K}^{0}$ mixing on $CP$ asymmetries in some weak decay modes of $D^{\pm}$ and $\stackrel{(-)}{B}$$^{0}_{d}$ mesons. We point out that a clean signal of $CP$ violation with magnitude of 2Re($\epsilon$) $\approx 3.3\t...
[ { "created": "Wed, 10 May 1995 13:24:02 GMT", "version": "v1" } ]
2015-06-25
[ [ "Xing", "Zhi-zhong", "" ] ]
Within the standard electroweak model we carry out an instructive analysis of the effect of $K^{0}-\bar{K}^{0}$ mixing on $CP$ asymmetries in some weak decay modes of $D^{\pm}$ and $\stackrel{(-)}{B}$$^{0}_{d}$ mesons. We point out that a clean signal of $CP$ violation with magnitude of 2Re($\epsilon$) $\approx 3.3\tim...
hep-ph/9810355
Jakub Rembielinski
Jacek Ciborowski (Warsaw, Poland) and Jakub Rembielinski (Lodz, Poland)
Tritium Decay and the Hypothesis of Tachyonic Neutrinos
RevTeX 3.1, uses amsmath.sty and psfig.sty; 3 figs., 6 pp
Eur.Phys.J.C8:157-161,1999
10.1007/s100529901062
null
hep-ph
null
Numerous recent measurements indicate an excess of counts near the endpoint of the electron energy spectrum in tritium decay. We show that this effect is expected if the neutrino is a tachyon. Results of calculations, based on a unitary (causal) theory of tachyons, are presented. The hypothesis of tachyonic neutrinos...
[ { "created": "Wed, 14 Oct 1998 12:26:02 GMT", "version": "v1" } ]
2011-09-13
[ [ "Ciborowski", "Jacek", "", "Warsaw, Poland" ], [ "Rembielinski", "Jakub", "", "Lodz,\n Poland" ] ]
Numerous recent measurements indicate an excess of counts near the endpoint of the electron energy spectrum in tritium decay. We show that this effect is expected if the neutrino is a tachyon. Results of calculations, based on a unitary (causal) theory of tachyons, are presented. The hypothesis of tachyonic neutrinos a...
hep-ph/0102052
Ed Stoeffhaas
V. Barger
Lepton Flavor Violating Era of Neutrino Physics
12 pages, Latex, uses sprocl.sty and epsf.sty. 5 postscript figures. Talk presented at Joint U.S./Japan Workshop On New Initiatives In Lepton Flavor Violation and Neutrino Oscillation With High Intense Muon and Neutrino Sources, Honolulu, Hawaii, October 2000
null
10.1142/9789812777003_0016
MADPH-00-1211
hep-ph
null
The physics agenda for future long-baseline neutrino oscillation experiments is outlined and the prospects for accomplishing those goals at future neutrino facilities are considered. Neutrino factories can deliver better reach in the mixing and mass-squared parameters but conventional super-beams with large water or ...
[ { "created": "Mon, 5 Feb 2001 22:06:34 GMT", "version": "v1" } ]
2017-08-23
[ [ "Barger", "V.", "" ] ]
The physics agenda for future long-baseline neutrino oscillation experiments is outlined and the prospects for accomplishing those goals at future neutrino facilities are considered. Neutrino factories can deliver better reach in the mixing and mass-squared parameters but conventional super-beams with large water or li...
2106.15943
Patrick Owen
Yasmine Amhis, Patrick Owen
Isospin extrapolation as a method to study inclusive $\bar{B} \to X_{s} \ell^{+}\ell^{-}$ decays
4 pages, 2 figures, contribution to the Offshell-2021 conference
Eur. Phys. J. C (2022) 82: 371
10.1140/epjc/s10052-022-10342-9
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
A novel approach to reconstruct inclusive $\bar{B} \to X_{s} \ell^{+}\ell^{-}$ decays is presented. The method relies on isopsin symmetry to extrapolate the semi-inclusive signature $X_{b}\to K^{+} \ell^{+}\ell^{-} X$ to the fully inclusive rate in $B^{+}$ and $B^{0}$ decays. We investigate the possibility to measure...
[ { "created": "Wed, 30 Jun 2021 09:51:54 GMT", "version": "v1" } ]
2022-05-26
[ [ "Amhis", "Yasmine", "" ], [ "Owen", "Patrick", "" ] ]
A novel approach to reconstruct inclusive $\bar{B} \to X_{s} \ell^{+}\ell^{-}$ decays is presented. The method relies on isopsin symmetry to extrapolate the semi-inclusive signature $X_{b}\to K^{+} \ell^{+}\ell^{-} X$ to the fully inclusive rate in $B^{+}$ and $B^{0}$ decays. We investigate the possibility to measure b...
hep-ph/0604029
Pietro Colangelo
P. Colangelo, F. De Fazio, R. Ferrandes, T.N. Pham
Exclusive $B \to K^{(*)} \ell^+ \ell^-$, $B \to K^{(*)} \nu {\bar \nu}$ and $B \to K^* \gamma$ transitions in a scenario with a single Universal Extra Dimension
RevTex, 26 pages, 12 figures
Phys.Rev. D73 (2006) 115006
10.1103/PhysRevD.73.115006
BARI-TH/06-534
hep-ph
null
We analyze the exclusive rare $B \to K^{(*)} \ell^+ \ell^-$, $B \to K^{(*)} \nu \bar \nu$ and $B \to K^* \gamma$ decays in the Applequist-Cheng-Dobrescu model, which is an extension of the Standard Model in presence of universal extra dimensions. In particular, we consider the case of a single universal extra dimensi...
[ { "created": "Tue, 4 Apr 2006 10:47:46 GMT", "version": "v1" } ]
2015-06-25
[ [ "Colangelo", "P.", "" ], [ "De Fazio", "F.", "" ], [ "Ferrandes", "R.", "" ], [ "Pham", "T. N.", "" ] ]
We analyze the exclusive rare $B \to K^{(*)} \ell^+ \ell^-$, $B \to K^{(*)} \nu \bar \nu$ and $B \to K^* \gamma$ decays in the Applequist-Cheng-Dobrescu model, which is an extension of the Standard Model in presence of universal extra dimensions. In particular, we consider the case of a single universal extra dimension...
hep-ph/9312223
null
Dirk Kreimer
Tensor Integrals for Two Loop Standard Model Calculations
12 pages (LATEX)
Mod.Phys.Lett. A9 (1994) 1105-1120
10.1142/S0217732394000927
null
hep-ph
null
We give a new method for the reduction of tensor integrals to finite integral representations and UV divergent analytic expressions. This includes a new method for the handling of the gamma-algebra. TYPO IN EQUATION (5) CORRECTED, MACROS REORDERED.
[ { "created": "Mon, 6 Dec 1993 20:15:00 GMT", "version": "v1" }, { "created": "Mon, 6 Dec 1993 22:49:00 GMT", "version": "v2" }, { "created": "Tue, 7 Dec 1993 19:27:00 GMT", "version": "v3" }, { "created": "Fri, 7 Jan 1994 17:11:00 GMT", "version": "v4" }, { "creat...
2009-10-22
[ [ "Kreimer", "Dirk", "" ] ]
We give a new method for the reduction of tensor integrals to finite integral representations and UV divergent analytic expressions. This includes a new method for the handling of the gamma-algebra. TYPO IN EQUATION (5) CORRECTED, MACROS REORDERED.
0708.0836
Frank Ndili Ph.D.
F. N. Ndili
Can experiments distinguish between Radiative Electroweak Symmetry breaking and Conventional breaking?
22 pages, 6 figures
null
null
null
hep-ph
null
We present a comparative study of radiative electroweak symmetry breaking and conventional standard model breaking, and pose the question whether experiments can distinguish one breaking mode from the other. The importance of the problem lies in the fact that the two breaking modes have very different physical interp...
[ { "created": "Mon, 6 Aug 2007 20:22:49 GMT", "version": "v1" } ]
2007-08-08
[ [ "Ndili", "F. N.", "" ] ]
We present a comparative study of radiative electroweak symmetry breaking and conventional standard model breaking, and pose the question whether experiments can distinguish one breaking mode from the other. The importance of the problem lies in the fact that the two breaking modes have very different physical interpre...
1306.3369
Dawid Toton
Krzysztof Kutak, Dawid Toton
Gluon saturation scale from the KGBJS equation
null
Journal of High Energy Physics, 2013 (11):1-14
10.1007/JHEP11(2013)082
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The CCFM equation and its extended form with a quadratic term (KGBJS equation) are solved with fixed and running coupling constant. The solution of the KGBJS equation is compared to gluon densities resulting from the CCFM and BK equations. As the saturation scale $Q_s$ now becomes available as a function of the hard ...
[ { "created": "Fri, 14 Jun 2013 11:55:56 GMT", "version": "v1" } ]
2013-11-13
[ [ "Kutak", "Krzysztof", "" ], [ "Toton", "Dawid", "" ] ]
The CCFM equation and its extended form with a quadratic term (KGBJS equation) are solved with fixed and running coupling constant. The solution of the KGBJS equation is compared to gluon densities resulting from the CCFM and BK equations. As the saturation scale $Q_s$ now becomes available as a function of the hard sc...
hep-ph/9405288
PostDoc Its
Xiao-Gang He and B.H.J. McKellar
$\epsilon'/\epsilon$ And Anomalous Gauge Boson Couplings
17 pages plus one figure (available from the author upon request), Revtex, OITS-541, UM-P-94/47
Phys.Rev.D51:6484-6489,1995
10.1103/PhysRevD.51.6484
null
hep-ph
null
We study $\epsilon'/\epsilon$ in the Standard Model and $\epsilon'/\epsilon$ due to anomalous $WW\gamma$ and $WWZ$ interactions %using recent result on the top quark mass from CDF. as a function of the top quark mass. In the Standard Model, $\epsilon'/\epsilon$ is in the range $10^{-3} \sim 10^{-4}$ for the central v...
[ { "created": "Fri, 13 May 1994 21:42:33 GMT", "version": "v1" } ]
2010-11-01
[ [ "He", "Xiao-Gang", "" ], [ "McKellar", "B. H. J.", "" ] ]
We study $\epsilon'/\epsilon$ in the Standard Model and $\epsilon'/\epsilon$ due to anomalous $WW\gamma$ and $WWZ$ interactions %using recent result on the top quark mass from CDF. as a function of the top quark mass. In the Standard Model, $\epsilon'/\epsilon$ is in the range $10^{-3} \sim 10^{-4}$ for the central val...
1709.00176
Lucian Harland-Lang
L. A. Harland-Lang, V. A. Khoze, M. G. Ryskin
Photon-Photon Collisions with SuperChic
6 pages, 2 figures. Submitted to proceedings of the PHOTON 2017 conference
null
null
IPPP/17/63
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The SuperChic Monte Carlo generator provides a common platform for QCD-mediated, photoproduction and photon-induced Central Exclusive Production (CEP), with a fully differential treatment of soft survival effects. In these proceedings we summarise the processes generated, before discussing in more detail those due to...
[ { "created": "Fri, 1 Sep 2017 07:08:35 GMT", "version": "v1" } ]
2017-09-04
[ [ "Harland-Lang", "L. A.", "" ], [ "Khoze", "V. A.", "" ], [ "Ryskin", "M. G.", "" ] ]
The SuperChic Monte Carlo generator provides a common platform for QCD-mediated, photoproduction and photon-induced Central Exclusive Production (CEP), with a fully differential treatment of soft survival effects. In these proceedings we summarise the processes generated, before discussing in more detail those due to p...
1604.08043
Riccardo Giachetti
A. Barducci, R. Giachetti, E. Sorace
Relativistic two-body calculation of $b\bar{b}$-mesons radiative decays
7 pages, 1 figure
null
10.1103/PhysRevD.95.054022
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
This paper is a prosecution of a previous work where we presented a unified two-fermion covariant scheme which produced very precise results for the masses of light and heavy mesons. We extend the analysis to some radiative decays of mesons $\Upsilon,\,\chi_{b2}\,,h_b\,,\chi_{b1}\,,\chi_{b0}\,,\eta_b\,$ and we calcul...
[ { "created": "Tue, 26 Apr 2016 16:00:02 GMT", "version": "v1" }, { "created": "Mon, 5 Dec 2016 11:36:20 GMT", "version": "v2" } ]
2017-04-26
[ [ "Barducci", "A.", "" ], [ "Giachetti", "R.", "" ], [ "Sorace", "E.", "" ] ]
This paper is a prosecution of a previous work where we presented a unified two-fermion covariant scheme which produced very precise results for the masses of light and heavy mesons. We extend the analysis to some radiative decays of mesons $\Upsilon,\,\chi_{b2}\,,h_b\,,\chi_{b1}\,,\chi_{b0}\,,\eta_b\,$ and we calculat...
2304.09908
Poonam Choudhary
Dipankar Chakrabarti, Poonam Choudhary, Bheemsehan Gurjar, Raj Kishore, Tanmay Maji, Chandan Mondal, Asmita Mukherjee
Gluon distributions in the proton in a light-front spectator model
14 pages, 7 figures
null
10.1103/PhysRevD.108.014009
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We formulate a light-front spectator model for the proton incorporating the gluonic degree of freedom. In this model, at high energy scattering of the proton, the active parton is a gluon and the rest is viewed as a spin-$\frac{1}{2}$ spectator with an effective mass. The light front wave functions of the proton are ...
[ { "created": "Wed, 19 Apr 2023 18:13:13 GMT", "version": "v1" } ]
2023-07-26
[ [ "Chakrabarti", "Dipankar", "" ], [ "Choudhary", "Poonam", "" ], [ "Gurjar", "Bheemsehan", "" ], [ "Kishore", "Raj", "" ], [ "Maji", "Tanmay", "" ], [ "Mondal", "Chandan", "" ], [ "Mukherjee", "Asmita", "" ...
We formulate a light-front spectator model for the proton incorporating the gluonic degree of freedom. In this model, at high energy scattering of the proton, the active parton is a gluon and the rest is viewed as a spin-$\frac{1}{2}$ spectator with an effective mass. The light front wave functions of the proton are co...
hep-ph/9712376
Wim deBoer
W. de Boer, R. Ehret, A.V. Gladyshev, D.I. Kazakov
Updated Combined Fit of Low Energy Constraints to Minimal Supersymmetry
latex + 5 eps figs, 7 pages, Higgs masses updated in corrected version, to be published in the Proc. of ICHEP97, Jerusalem, 1997
null
null
IEKP-KA/97-15
hep-ph
null
The new precise LEP measurements of alphas and the electroweak mixing angle as well as the new LEP II mass limits for supersymmetric particles and new calculations for the radiative (penguin) decay of the b-quark into sgamma allow a further restriction in the parameter space of the Constrained Minimal Supersymmetric ...
[ { "created": "Mon, 15 Dec 1997 10:04:39 GMT", "version": "v1" }, { "created": "Mon, 19 Jan 1998 20:44:21 GMT", "version": "v2" } ]
2007-05-23
[ [ "de Boer", "W.", "" ], [ "Ehret", "R.", "" ], [ "Gladyshev", "A. V.", "" ], [ "Kazakov", "D. I.", "" ] ]
The new precise LEP measurements of alphas and the electroweak mixing angle as well as the new LEP II mass limits for supersymmetric particles and new calculations for the radiative (penguin) decay of the b-quark into sgamma allow a further restriction in the parameter space of the Constrained Minimal Supersymmetric St...
1402.4831
A. H. Rezaeian
N\'estor Armesto, Amir H. Rezaeian
Exclusive vector meson production at high energies and gluon saturation
20 pages, 24 figures; v3: the old LHCb data replaced with updated 2014 data, ALICE preliminary data added for the comparison, all results and predictions unchanged, 10 new plots added, more predictions, discussions and references added. The version to appear in PRD
Phys. Rev. D 90, 054003 (2014)
10.1103/PhysRevD.90.054003
null
hep-ph hep-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We systematically study exclusive diffractive (photo) production of vector mesons ($J/\psi$, $\psi(2s)$, $\phi$ and $\rho$) off protons in high-energy collisions and investigate whether the production is a sensitive probe of gluon saturation. We confront saturation-based results for diffractive $\psi(2s)$ and $\rho$ ...
[ { "created": "Wed, 19 Feb 2014 21:17:23 GMT", "version": "v1" }, { "created": "Mon, 12 May 2014 20:10:03 GMT", "version": "v2" }, { "created": "Tue, 26 Aug 2014 20:02:56 GMT", "version": "v3" } ]
2014-09-05
[ [ "Armesto", "Néstor", "" ], [ "Rezaeian", "Amir H.", "" ] ]
We systematically study exclusive diffractive (photo) production of vector mesons ($J/\psi$, $\psi(2s)$, $\phi$ and $\rho$) off protons in high-energy collisions and investigate whether the production is a sensitive probe of gluon saturation. We confront saturation-based results for diffractive $\psi(2s)$ and $\rho$ pr...
hep-ph/0004165
George Koutsoumbas
J.Alexandre, K. Farakos, G. Koutsoumbas
QED in a Strong External Magnetic Field: Beyond the Constant Mass Approximation
21 pages, 8 figures, plain latex, references added
Phys.Rev. D62 (2000) 105017
10.1103/PhysRevD.62.105017
null
hep-ph hep-th
null
We solve the Schwinger-Dyson equations for QED in 2+1 or 3+1 dimensions in the presence of a strong homogeneous external magnetic field. The magnetic field is assumed strong enough, so that the lowest Landau level approximation holds, but the usual assumption of a momentum-independent self-energy is not made. In 2+1 ...
[ { "created": "Mon, 17 Apr 2000 17:16:41 GMT", "version": "v1" }, { "created": "Fri, 12 May 2000 14:30:53 GMT", "version": "v2" } ]
2009-10-31
[ [ "Alexandre", "J.", "" ], [ "Farakos", "K.", "" ], [ "Koutsoumbas", "G.", "" ] ]
We solve the Schwinger-Dyson equations for QED in 2+1 or 3+1 dimensions in the presence of a strong homogeneous external magnetic field. The magnetic field is assumed strong enough, so that the lowest Landau level approximation holds, but the usual assumption of a momentum-independent self-energy is not made. In 2+1 di...
hep-ph/9610424
Edward Boos
E. Boos, A. Pukhov, M. Sachwitz and H. J. Schreiber
Higgs and Top Production in the Reaction $\gamma e \to \nu b \bar{b} W$ at TeV Linear Collider Energies
18 pages Latex, including 8 eps-figures To be appear in Zeitschrift f. Physik C
Z.Phys.C75:237-244,1997
10.1007/s002880050466
null
hep-ph
null
For an electron-photon collider the complete tree-level cross sections of the reaction $\gamma e \rightarrow \nu b \bar{b} W$ are computed at center-of-mass energies between 0.5 and 2.0 TeV, for top masses of 160 to 200 GeV and Higgs masses between 80 and 140 GeV within the Standard Model. It is shown that most of th...
[ { "created": "Sun, 20 Oct 1996 20:09:03 GMT", "version": "v1" } ]
2011-07-19
[ [ "Boos", "E.", "" ], [ "Pukhov", "A.", "" ], [ "Sachwitz", "M.", "" ], [ "Schreiber", "H. J.", "" ] ]
For an electron-photon collider the complete tree-level cross sections of the reaction $\gamma e \rightarrow \nu b \bar{b} W$ are computed at center-of-mass energies between 0.5 and 2.0 TeV, for top masses of 160 to 200 GeV and Higgs masses between 80 and 140 GeV within the Standard Model. It is shown that most of the ...
1610.01503
Pietro Santorelli
Pietro Santorelli
On the $h \to V \ell^+ \ell^-$ decays
8 pages, 4 figures, invited talk given at QCD@Work 2016, Bari, July 2016. In this version (v2) some typos have been corrected
null
10.1051/epjconf/201612900015
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A set of exclusive decays of the Higgs boson into a vector meson and a dilepton pair ($h\to V \ell^+ \ell^-$, with $V=\Upsilon, J/\psi,\phi$, and $\ell=\mu, \tau$) are studied in the framework of the Standard Model. We have evaluated the decay rates, the dilepton mass spectra and the $V$ longitudinal helicity fractio...
[ { "created": "Wed, 5 Oct 2016 16:20:04 GMT", "version": "v1" }, { "created": "Tue, 13 Dec 2016 16:47:27 GMT", "version": "v2" } ]
2016-12-14
[ [ "Santorelli", "Pietro", "" ] ]
A set of exclusive decays of the Higgs boson into a vector meson and a dilepton pair ($h\to V \ell^+ \ell^-$, with $V=\Upsilon, J/\psi,\phi$, and $\ell=\mu, \tau$) are studied in the framework of the Standard Model. We have evaluated the decay rates, the dilepton mass spectra and the $V$ longitudinal helicity fraction ...
hep-ph/0412295
Urs M. Heller
Urs M. Heller (For the MILC Collaboration)
Light hadrons in 2+1 flavor lattice QCD
To appear in the proceedings of the First Meeting of the APS Topical Group on Hadronic Physics, Fermilab, Batavia, Illinois, Oct. 24-26, 2004
J.Phys.Conf.Ser. 9 (2005) 248-251
10.1088/1742-6596/9/1/045
null
hep-ph hep-lat
null
This talk will focus on recent results by the MILC collaboration from simulations of light hadrons in 2+1 flavor lattice QCD. We have achieved high precision results in the pseudoscalar sector, including masses and decay constants, plus quark masses and Gasser-Leutwyler parameters from well controlled chiral perturba...
[ { "created": "Mon, 20 Dec 2004 20:37:33 GMT", "version": "v1" } ]
2009-11-10
[ [ "Heller", "Urs M.", "", "For the MILC Collaboration" ] ]
This talk will focus on recent results by the MILC collaboration from simulations of light hadrons in 2+1 flavor lattice QCD. We have achieved high precision results in the pseudoscalar sector, including masses and decay constants, plus quark masses and Gasser-Leutwyler parameters from well controlled chiral perturbati...
1309.1723
P. Q. Hung
Paul H. Frampton and Pham Q. Hung
Luminogenesis from Inflationary Dark Matter
8 double-column pages. No figures. Typos corrected. Added comments. Improved version
null
null
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A cosmological model is introduced in which dark matter plays a dominant role throughout the history of the universe, and is the only matter present for temperatures $T \gtrsim T_{15} \sim 10^9$ GeV. The gauge group is $SU(3) \times SU(6)_{DM} \times U(1)_Y$ and unifies in such a way that luminous matter is generated...
[ { "created": "Fri, 6 Sep 2013 18:32:00 GMT", "version": "v1" }, { "created": "Thu, 12 Sep 2013 04:08:38 GMT", "version": "v2" }, { "created": "Sat, 14 Sep 2013 17:00:35 GMT", "version": "v3" }, { "created": "Thu, 7 May 2015 15:31:27 GMT", "version": "v4" } ]
2015-05-08
[ [ "Frampton", "Paul H.", "" ], [ "Hung", "Pham Q.", "" ] ]
A cosmological model is introduced in which dark matter plays a dominant role throughout the history of the universe, and is the only matter present for temperatures $T \gtrsim T_{15} \sim 10^9$ GeV. The gauge group is $SU(3) \times SU(6)_{DM} \times U(1)_Y$ and unifies in such a way that luminous matter is generated a...
1904.02092
Sung Hak Lim
Amit Chakraborty, Sung Hak Lim, Mihoko M. Nojiri
Interpretable Deep Learning for Two-Prong Jet Classification with Jet Spectra
32 pages, 21 figures, published in JHEP
J. High Energ. Phys. 2019, 135 (2019)
10.1007/JHEP07(2019)135
KEK-TH-2117
hep-ph hep-ex stat.ML
http://creativecommons.org/licenses/by/4.0/
Classification of jets with deep learning has gained significant attention in recent times. However, the performance of deep neural networks is often achieved at the cost of interpretability. Here we propose an interpretable network trained on the jet spectrum $S_{2}(R)$ which is a two-point correlation function of t...
[ { "created": "Wed, 3 Apr 2019 16:37:52 GMT", "version": "v1" }, { "created": "Thu, 26 Mar 2020 08:59:33 GMT", "version": "v2" } ]
2020-03-27
[ [ "Chakraborty", "Amit", "" ], [ "Lim", "Sung Hak", "" ], [ "Nojiri", "Mihoko M.", "" ] ]
Classification of jets with deep learning has gained significant attention in recent times. However, the performance of deep neural networks is often achieved at the cost of interpretability. Here we propose an interpretable network trained on the jet spectrum $S_{2}(R)$ which is a two-point correlation function of the...
hep-ph/0407091
Kuang-Ta Chao
Kuang-Ta Chao
A note on possible interpretations for the $D_{SJ}^+(2632)$ observed by SELEX
final version to appear in Phys. Lett. B, references added
Phys.Lett.B599:43-47,2004
10.1016/j.physletb.2004.08.031
null
hep-ph hep-ex
null
We suggest some possible interpretations for the $D_{SJ}^+(2632)$ observed by SELEX. The $D_{SJ}^+(2632)$ could be the first radial excitation of the $1^-$ ground state $\rm{D_s}^*$(2112), and its unusual decay patten might be hopefully explained by the node structure of the wave functions. In addition, the $D_{SJ}^+...
[ { "created": "Wed, 7 Jul 2004 20:02:43 GMT", "version": "v1" }, { "created": "Mon, 16 Aug 2004 16:53:16 GMT", "version": "v2" } ]
2008-11-26
[ [ "Chao", "Kuang-Ta", "" ] ]
We suggest some possible interpretations for the $D_{SJ}^+(2632)$ observed by SELEX. The $D_{SJ}^+(2632)$ could be the first radial excitation of the $1^-$ ground state $\rm{D_s}^*$(2112), and its unusual decay patten might be hopefully explained by the node structure of the wave functions. In addition, the $D_{SJ}^+(2...
0704.3838
Shu Luo
Wei Chao, Shu Luo, Zhi-zhong Xing
Neutrino Mixing and Leptogenesis in Type-II Seesaw Scenarios with Left-Right Symmetry
RevTex 14 pages, 2 PS figures. Slight modifications made for the text. Accepted for publication in Phys. Lett. B
Phys.Lett.B659:281-289,2008
10.1016/j.physletb.2007.11.028
null
hep-ph
null
We propose two Type-II seesaw scenarios for the neutrino mass matrix in the left-right symmetric model, in which the Higgs triplet Yukawa coupling matrix takes the appealing Friedberg-Lee texture. We show that the nearly tri-bimaximal neutrino mixing pattern, which is especially favored by current neutrino oscillatio...
[ { "created": "Sun, 29 Apr 2007 12:02:33 GMT", "version": "v1" }, { "created": "Thu, 3 May 2007 10:29:04 GMT", "version": "v2" }, { "created": "Sun, 18 Nov 2007 06:31:14 GMT", "version": "v3" } ]
2008-11-26
[ [ "Chao", "Wei", "" ], [ "Luo", "Shu", "" ], [ "Xing", "Zhi-zhong", "" ] ]
We propose two Type-II seesaw scenarios for the neutrino mass matrix in the left-right symmetric model, in which the Higgs triplet Yukawa coupling matrix takes the appealing Friedberg-Lee texture. We show that the nearly tri-bimaximal neutrino mixing pattern, which is especially favored by current neutrino oscillation ...
1711.01069
Sergey Troshin
S.M. Troshin, N.E. Tyurin
Centrality in small systems at the LHC energies and beyond
8 pages, no figures, revised version, corrected text, results unchanged
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Experimental observations at the LHC of the collective effects in small systems such as $pp$--scattering suggest introduction of the centrality variable to classify collision events similar to the case of nucleus--nucleus collisions. We discuss this issue with reference to the existing measurements at the LHC and the...
[ { "created": "Fri, 3 Nov 2017 09:16:02 GMT", "version": "v1" }, { "created": "Thu, 14 Dec 2017 09:18:05 GMT", "version": "v2" } ]
2017-12-15
[ [ "Troshin", "S. M.", "" ], [ "Tyurin", "N. E.", "" ] ]
Experimental observations at the LHC of the collective effects in small systems such as $pp$--scattering suggest introduction of the centrality variable to classify collision events similar to the case of nucleus--nucleus collisions. We discuss this issue with reference to the existing measurements at the LHC and the a...
0808.1057
Larry McLerran
Larry McLerran
Quarkyonic Matter and the Phase Diagram of QCD
Invited talk presented at Continuous Advances in QCD, May 15-18, 2008, Minneapolis, MN
null
10.1142/9789812838667_0011
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Quarkyonic matter is a new phase of QCD at finite temperature and density which is distinct from the confined and de-confined phases. Its existence is unambiguously argued in the large number of colors limit in QCD. Hints of its existence for 3 color QCD are shown in lattice Monte-Carlo data and heavy ion experiments...
[ { "created": "Thu, 7 Aug 2008 15:54:00 GMT", "version": "v1" } ]
2017-08-23
[ [ "McLerran", "Larry", "" ] ]
Quarkyonic matter is a new phase of QCD at finite temperature and density which is distinct from the confined and de-confined phases. Its existence is unambiguously argued in the large number of colors limit in QCD. Hints of its existence for 3 color QCD are shown in lattice Monte-Carlo data and heavy ion experiments.
hep-ph/9312251
N. Tracas
A.B. Lahanas, K. Tamvakis and N.D. Tracas
One loop corrections to the Neutralino sector and Radiative Electroweak Breaking in the MSSM
15 pages + 1 fig. in PS at the end of the paper. CERN TH.7089/93, IOA 297, NTUA 42/93
Phys.Lett.B324:387-396,1994
10.1016/0370-2693(94)90211-9
null
hep-ph
null
We compute one loop radiative corrections to the physical neutralino masses in the MSSM considering the dominant top-stop contributions. We present a numerical renormalization group analysis of the feasibility of the radiative gauge symmetry breaking parametrized by the standard soft supersymmetry breaking terms. Alt...
[ { "created": "Thu, 9 Dec 1993 14:23:50 GMT", "version": "v1" } ]
2011-07-19
[ [ "Lahanas", "A. B.", "" ], [ "Tamvakis", "K.", "" ], [ "Tracas", "N. D.", "" ] ]
We compute one loop radiative corrections to the physical neutralino masses in the MSSM considering the dominant top-stop contributions. We present a numerical renormalization group analysis of the feasibility of the radiative gauge symmetry breaking parametrized by the standard soft supersymmetry breaking terms. Altho...
hep-ph/0212124
Marc Vanderhaeghen
D. Drechsel, B. Pasquini, M. Vanderhaeghen
Dispersion relations in real and virtual Compton scattering
120 pages, 42 figures, to appear in Phys. Rep
Phys.Rept.378:99-205,2003
10.1016/S0370-1573(02)00636-1
null
hep-ph
null
A unified presentation is given on the use of dispersion relations in the real and virtual Compton scattering processes off the nucleon. The way in which dispersion relations for Compton scattering amplitudes establish connections between low energy nucleon structure quantities, such as polarizabilities or anomalous ...
[ { "created": "Mon, 9 Dec 2002 18:20:18 GMT", "version": "v1" } ]
2010-04-06
[ [ "Drechsel", "D.", "" ], [ "Pasquini", "B.", "" ], [ "Vanderhaeghen", "M.", "" ] ]
A unified presentation is given on the use of dispersion relations in the real and virtual Compton scattering processes off the nucleon. The way in which dispersion relations for Compton scattering amplitudes establish connections between low energy nucleon structure quantities, such as polarizabilities or anomalous ma...
1112.2981
Soumya Rao
Subhendra Mohanty and Soumya Rao
Neutrino processes with power law dispersion relations
13 pages, 1 figure, Title change, replacement matches version accepted in Phys. Rev. D
Phys. Rev. D 85, 102005 (2012)
10.1103/PhysRevD.85.102005
PRL-TH/AP-11/2
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We compute various processes involving neutrinos in the initial and/or final state and we assume that neutrinos have energy momentum relation with a general power law $E^2 =p^2+ \xi_n p^n$ correction due to Lorentz invariance violation. We find that for $n>2$ the bounds on $\xi_n$ from direct time of flight measureme...
[ { "created": "Tue, 13 Dec 2011 17:52:59 GMT", "version": "v1" }, { "created": "Thu, 10 May 2012 13:34:28 GMT", "version": "v2" }, { "created": "Fri, 11 May 2012 05:01:58 GMT", "version": "v3" } ]
2014-03-03
[ [ "Mohanty", "Subhendra", "" ], [ "Rao", "Soumya", "" ] ]
We compute various processes involving neutrinos in the initial and/or final state and we assume that neutrinos have energy momentum relation with a general power law $E^2 =p^2+ \xi_n p^n$ correction due to Lorentz invariance violation. We find that for $n>2$ the bounds on $\xi_n$ from direct time of flight measurement...
hep-ph/9603300
null
M. Caffo, H. Czyz and E. Remiddi
Simulation of the process $e^+ e^- \mapsto e^+ e^- \gamma$ within electroweak theory with longitudinally polarized initial electrons
9 pages, plain Tex, no figures, small change in Table 2
Phys.Lett. B378 (1996) 357-363
10.1016/0370-2693(96)00438-8
DFUB 96-07, TP-USL/96/01
hep-ph hep-ex
null
We present simple analytic expressions for the distributions of the Bhabha scattering process with emission of one hard photon, including weak boson exchanges, and with longitudinal polarization of the initial electron. The results from the Monte Carlo generator BHAGEN-1PH, based on these expressions, are presented a...
[ { "created": "Wed, 13 Mar 1996 16:10:55 GMT", "version": "v1" }, { "created": "Mon, 15 Apr 1996 14:48:54 GMT", "version": "v2" } ]
2009-10-28
[ [ "Caffo", "M.", "" ], [ "Czyz", "H.", "" ], [ "Remiddi", "E.", "" ] ]
We present simple analytic expressions for the distributions of the Bhabha scattering process with emission of one hard photon, including weak boson exchanges, and with longitudinal polarization of the initial electron. The results from the Monte Carlo generator BHAGEN-1PH, based on these expressions, are presented and...
hep-ph/9505218
Alexey Provorov
A.L. Provorov and I.M. Zheleznykh
Radiowave Method of High Energy Neutrino Detection: calculation of the expected event rate
To be published by Astroparticle Physics, LaTeX file, 11 pages
Astropart.Phys.4:55-62,1995
10.1016/0927-6505(95)00019-D
Preprint INR-825/93
hep-ph
null
The sensitivity of an ice radiowave detector to the anticipated high energy neutrino fluxes is calculated on the basis of a detailed threshold analysis and computation of the shower production rate. We show that diffuse neutrinos from Active Galactic Nuclei could be detectable in a radio detector of 1 sq.km area esta...
[ { "created": "Wed, 3 May 1995 11:53:32 GMT", "version": "v1" } ]
2011-05-23
[ [ "Provorov", "A. L.", "" ], [ "Zheleznykh", "I. M.", "" ] ]
The sensitivity of an ice radiowave detector to the anticipated high energy neutrino fluxes is calculated on the basis of a detailed threshold analysis and computation of the shower production rate. We show that diffuse neutrinos from Active Galactic Nuclei could be detectable in a radio detector of 1 sq.km area establ...
hep-ph/9812330
Sergey Goloskokov
S.V.Goloskokov
Spin Asymmetries In Diffractive $J/\Psi$ Leptoproduction
4 pages, latex, two PS figures, presented at the International Workshop "Symmetry and Spin" PRAHA'98
Czech.J.Phys. 49S2 (1999) 89-94
10.1007/s10582-999-0090-8
null
hep-ph
null
In this report we calculate the cross section and $A_{ll}$ asymmetry for the diffractive $J/\Psi$ leptoproduction. We study dependences of the asymmetry on the structure of the Pomeron-proton coupling
[ { "created": "Fri, 11 Dec 1998 10:05:57 GMT", "version": "v1" } ]
2009-10-31
[ [ "Goloskokov", "S. V.", "" ] ]
In this report we calculate the cross section and $A_{ll}$ asymmetry for the diffractive $J/\Psi$ leptoproduction. We study dependences of the asymmetry on the structure of the Pomeron-proton coupling
2305.16208
John McDonald
J. McDonald
Higgs Inflation via the Metastable Standard Model Potential, Generalised Renormalisation Frame Prescriptions and Predictions for Primordial Gravitational Waves
14 pages, 6 figures. Minor alterations and clarifications. Submitted for publication
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Higgs Inflation via the unmodified metastable Standard Model Higgs Potential is possible if the effective Planck mass in the Jordan frame increases after inflation ends. Here we consider the predictions of this model independently of the dynamics responsible for the Planck mass transition. The classical predictions a...
[ { "created": "Thu, 25 May 2023 16:08:20 GMT", "version": "v1" }, { "created": "Mon, 18 Sep 2023 10:59:06 GMT", "version": "v2" } ]
2023-09-19
[ [ "McDonald", "J.", "" ] ]
Higgs Inflation via the unmodified metastable Standard Model Higgs Potential is possible if the effective Planck mass in the Jordan frame increases after inflation ends. Here we consider the predictions of this model independently of the dynamics responsible for the Planck mass transition. The classical predictions are...
hep-ph/9512396
Takeo Moroi
Takeo Moroi
The Muon Anomalous Magnetic Dipole Moment in the Minimal Supersymmetric Standard Model
Typographical errors are corrected
Phys.Rev.D53:6565-6575,1996; Erratum-ibid.D56:4424,1997
10.1103/PhysRevD.53.6565 10.1103/PhysRevD.56.4424
null
hep-ph
null
The muon anomalous magnetic dipole moment (MDM) is calculated in the framework of the minimal supersymmetric standard model (MSSM). In this paper, we discuss how the muon MDM depends on the parameters in MSSM in detail. We show that the contribution of the superparticle-loop becomes significant especially when $\tan\...
[ { "created": "Thu, 21 Dec 1995 19:58:30 GMT", "version": "v1" }, { "created": "Thu, 8 Feb 1996 19:36:25 GMT", "version": "v2" }, { "created": "Thu, 26 Jun 1997 17:44:54 GMT", "version": "v3" } ]
2014-11-17
[ [ "Moroi", "Takeo", "" ] ]
The muon anomalous magnetic dipole moment (MDM) is calculated in the framework of the minimal supersymmetric standard model (MSSM). In this paper, we discuss how the muon MDM depends on the parameters in MSSM in detail. We show that the contribution of the superparticle-loop becomes significant especially when $\tan\be...
0704.2273
Pankaj Jain
Pankaj Jain and Subhadip Mitra
Cosmological Symmetry Breaking, Pseudo-scale invariance, Dark Energy and the Standard Model
18 pages, no figures
Mod.Phys.Lett.A22:1651-1661,2007
10.1142/S0217732307023754
null
hep-ph astro-ph hep-th
null
The energy density of the universe today may be dominated by the vacuum energy of a slowly rolling scalar field. Making a quantum expansion around such a time dependent solution is found to break fundamental symmetries of quantum field theory. We call this mechanism cosmological symmetry breaking and argue that it is...
[ { "created": "Wed, 18 Apr 2007 05:36:05 GMT", "version": "v1" }, { "created": "Fri, 22 Jun 2007 11:42:09 GMT", "version": "v2" } ]
2008-11-26
[ [ "Jain", "Pankaj", "" ], [ "Mitra", "Subhadip", "" ] ]
The energy density of the universe today may be dominated by the vacuum energy of a slowly rolling scalar field. Making a quantum expansion around such a time dependent solution is found to break fundamental symmetries of quantum field theory. We call this mechanism cosmological symmetry breaking and argue that it is d...
1807.02512
Juergen Reuter
Simon Bra\ss, Christian Fleper, Wolfgang Kilian, J\"urgen Reuter, Marco Sekulla
Transversal Modes and Higgs Bosons in Electroweak Vector-Boson Scattering at the LHC
null
Eur. Phys. J. C (2018) 78: 931
10.1140/epjc/s10052-018-6398-4
DESY 18-002, SI-HEP-2018-27, KA-TP-14-2018, VBSCAN-PUB-03-18
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
Processes where $W$ and $Z$ bosons scatter into pairs of electroweak bosons $W$, $Z$, and Higgs, are sensitive probes of new physics in the electroweak sector. We study simplified models that describe typical scenarios of new physics and parameterize the range of possible LHC results between the Standard-Model predic...
[ { "created": "Fri, 6 Jul 2018 17:58:37 GMT", "version": "v1" } ]
2019-02-01
[ [ "Braß", "Simon", "" ], [ "Fleper", "Christian", "" ], [ "Kilian", "Wolfgang", "" ], [ "Reuter", "Jürgen", "" ], [ "Sekulla", "Marco", "" ] ]
Processes where $W$ and $Z$ bosons scatter into pairs of electroweak bosons $W$, $Z$, and Higgs, are sensitive probes of new physics in the electroweak sector. We study simplified models that describe typical scenarios of new physics and parameterize the range of possible LHC results between the Standard-Model predicti...
1101.5845
Vladimir Dzhunushaliev
Vladimir Dzhunushaliev
Gluon field distribution between three infinitely spaced quarks
5 pages, 3 figures
Physical Sciences and Technology, Vol. 1 (No. 1), 2014, 28-33
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The gluon field distribution between three infinitely spaced quarks is obtained. The field distribution between every pair is approximated by an infinite flux tube filled with a color longitudinal electric field. The origin of the color electric field is a nonlinear term in the field strength of nonabelian gauge fiel...
[ { "created": "Mon, 31 Jan 2011 04:11:35 GMT", "version": "v1" } ]
2016-05-06
[ [ "Dzhunushaliev", "Vladimir", "" ] ]
The gluon field distribution between three infinitely spaced quarks is obtained. The field distribution between every pair is approximated by an infinite flux tube filled with a color longitudinal electric field. The origin of the color electric field is a nonlinear term in the field strength of nonabelian gauge field....
0810.5238
Hossein Malekzadeh
H. Malekzadeh
Explicit form of quark propagators and gluon self-energies in neutral three-flavor color superconductor
21 pages
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Enforcing color and electric charge neutrality conditions on the three-flavor color superconducting matter, I derive the explicit form of the quark propagators and the gluon self-energies for the gapless and the ordinary color-flavor-locked phases.
[ { "created": "Wed, 29 Oct 2008 10:39:41 GMT", "version": "v1" } ]
2008-10-30
[ [ "Malekzadeh", "H.", "" ] ]
Enforcing color and electric charge neutrality conditions on the three-flavor color superconducting matter, I derive the explicit form of the quark propagators and the gluon self-energies for the gapless and the ordinary color-flavor-locked phases.
hep-ph/0207149
Volker Burkert
Volker D. Burkert (Jefferson Lab)
The N* Program at Jefferson Lab - Status and Prospects
Replaced one figure, corrected reference, corrected typos
null
null
JLAB-PHY-02-15
hep-ph nucl-ex nucl-th
null
I discuss recent results on the electroproduction and photoproduction of mesons in the region of non-strange baryon resonances. Results on the quadrupole transition from the ground state nucleon to the Delta(1232) show the importance of pion cloud contributions to explain the observed quadrupole transition multipoles...
[ { "created": "Fri, 12 Jul 2002 12:35:54 GMT", "version": "v1" }, { "created": "Mon, 22 Jul 2002 00:45:18 GMT", "version": "v2" } ]
2007-05-23
[ [ "Burkert", "Volker D.", "", "Jefferson Lab" ] ]
I discuss recent results on the electroproduction and photoproduction of mesons in the region of non-strange baryon resonances. Results on the quadrupole transition from the ground state nucleon to the Delta(1232) show the importance of pion cloud contributions to explain the observed quadrupole transition multipoles. ...
hep-ph/0112083
M. Kowalski
AMANDA Collaboration: J. Ahrens, et al
Physics Results from the AMANDA Neutrino Detector
5 pages, 4 figures
in Proceedings of the EPS International Conference on High Energy Physics, Budapest, 2001 (D. Horvath, P. Levai, A. Patkos, eds.), JHEP Proceedings Section, PrHEP-hep2001/207
null
null
hep-ph
null
In the winter season of 2000, the AMANDA (Antarctic Muon And Neutrino Detector Array) detector was completed to its final state. We report on major physics results obtained from the AMANDA-B10 detector, as well as initial results of the full AMANDA-II detector.
[ { "created": "Wed, 5 Dec 2001 17:36:55 GMT", "version": "v1" } ]
2007-05-23
[ [ "AMANDA Collaboration", "", "" ], [ "Ahrens", "J.", "" ] ]
In the winter season of 2000, the AMANDA (Antarctic Muon And Neutrino Detector Array) detector was completed to its final state. We report on major physics results obtained from the AMANDA-B10 detector, as well as initial results of the full AMANDA-II detector.
1409.0444
Marco Guzzi
Marco Guzzi, Katerina Lipka and Sven-Olaf Moch
Differential cross sections for top pair production at the LHC
6 pages, 2 figures, Conference proceedings for DIS2014, XXII International Workshop on Deep-Inelastic Scattering and Related Subjects, 28 April - 2 May 2014, Warsaw, Poland, and ICHEP 2014, 37 International Conference on High Energy Physics, 2-9 July 2014, Valencia, Spain
null
null
DESY 14-155
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present results of phenomenological studies for top-quark pair production at the LHC at the center of mass energy $\sqrt{S} = 7$ TeV. The transverse momentum and rapidity distributions for final-state top quarks are calculated in perturbative QCD at approximate next-to-next-to-leading order ${\cal O}(\alpha_s^4)$ ...
[ { "created": "Mon, 1 Sep 2014 15:05:29 GMT", "version": "v1" } ]
2014-09-02
[ [ "Guzzi", "Marco", "" ], [ "Lipka", "Katerina", "" ], [ "Moch", "Sven-Olaf", "" ] ]
We present results of phenomenological studies for top-quark pair production at the LHC at the center of mass energy $\sqrt{S} = 7$ TeV. The transverse momentum and rapidity distributions for final-state top quarks are calculated in perturbative QCD at approximate next-to-next-to-leading order ${\cal O}(\alpha_s^4)$ by...
hep-ph/0102213
Torben Hannah
Torben Hannah
The anomalous process gamma pi -> pi pi to two loops
23 pages, 4 figures
Nucl.Phys. B593 (2001) 577-595
10.1016/S0550-3213(00)00641-6
null
hep-ph
null
The amplitude for the anomalous process gamma pi -> pi pi is evaluated to two loops in the chiral expansion by means of a dispersive method. The two new coupling constants that enter at this order are estimated via sum rules derived from a non-perturbative chiral approach. With these coupling constants fixed, the num...
[ { "created": "Fri, 16 Feb 2001 22:04:24 GMT", "version": "v1" } ]
2009-11-07
[ [ "Hannah", "Torben", "" ] ]
The amplitude for the anomalous process gamma pi -> pi pi is evaluated to two loops in the chiral expansion by means of a dispersive method. The two new coupling constants that enter at this order are estimated via sum rules derived from a non-perturbative chiral approach. With these coupling constants fixed, the numer...
1112.5059
Hsiang-nan Li
Yu-Chun Chen and Hsiang-nan Li
Three-parton contribution to the $B\to\pi$ form factors in $k_T$ factorization
8 pages, 3 figures
null
10.1016/j.physletb.2012.04.035
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the three-parton twist-3 contribution to the $B\to\pi$ transition form factors in the $k_T$ factorization theorem. Since different mesons are involved in the initial and final states, two(three)-parton-to-three(two)-parton amplitudes do not vanish. It is found that the dominant contribution arises from t...
[ { "created": "Wed, 21 Dec 2011 15:30:37 GMT", "version": "v1" } ]
2015-06-03
[ [ "Chen", "Yu-Chun", "" ], [ "Li", "Hsiang-nan", "" ] ]
We calculate the three-parton twist-3 contribution to the $B\to\pi$ transition form factors in the $k_T$ factorization theorem. Since different mesons are involved in the initial and final states, two(three)-parton-to-three(two)-parton amplitudes do not vanish. It is found that the dominant contribution arises from the...
1210.7758
Wilfried Buchmuller
Wilfried Buchmuller
Leptogenesis: Theory and Neutrino Masses
7 pages, 9 figures, Talk at the XXV Int. Conf. on Neutrino Physics, Kyoto
null
10.1016/j.nuclphysbps.2013.04.029
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
After a brief discussion of baryon and lepton number nonconservation, we review the status of thermal leptogenesis with GUT scale neutrino masses, as well as low scale alternatives with keV neutrinos as dark matter and heavy neutrino masses within the reach of the LHC. Recent progress towards a full quantum mechnical...
[ { "created": "Mon, 29 Oct 2012 18:12:09 GMT", "version": "v1" } ]
2015-06-11
[ [ "Buchmuller", "Wilfried", "" ] ]
After a brief discussion of baryon and lepton number nonconservation, we review the status of thermal leptogenesis with GUT scale neutrino masses, as well as low scale alternatives with keV neutrinos as dark matter and heavy neutrino masses within the reach of the LHC. Recent progress towards a full quantum mechnical d...
hep-ph/9310247
Nils A. Tornqvist
Nils A. T\"ornqvist
From the Deuteron to Deusons, an Analysis of Deuteronlike Meson-Meson Bound States
24pages in latex, 6 figures (not included), HU-SEFT R 1993-12
Z.Phys.C61:525-537,1994
10.1007/BF01413192
null
hep-ph
null
A systematic study of possible deuteronlike two-meson bound states, {\it deusons}, is presented. Previous arguments that many such bound states may exist are elaborated with detailed arguments and numerical calculations including, in particular, the tensor potential. In the heavy meson sector one-pion exchange alone ...
[ { "created": "Fri, 8 Oct 1993 12:16:57 GMT", "version": "v1" } ]
2009-07-09
[ [ "Törnqvist", "Nils A.", "" ] ]
A systematic study of possible deuteronlike two-meson bound states, {\it deusons}, is presented. Previous arguments that many such bound states may exist are elaborated with detailed arguments and numerical calculations including, in particular, the tensor potential. In the heavy meson sector one-pion exchange alone is...
0806.1840
Hirotsugu Fujii
H. Fujii (Tokyo U., Komaba) and K. Itakura (KEK)
An analytic study towards instabilities of the glasma
4p, 3figs; poster contribution to QM2008
Indian J.Phys.85:75-80,2011
10.1007/s12648-011-0021-y
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Strong longitudinal color flux fields will be created in the initial stage of high-energy nuclear collisions. We investigate analytically time evolution of such boost-invariant color fields from Abelian-like initial conditions, and next examine stability of the boost-invariant configurations against rapidity dependen...
[ { "created": "Wed, 11 Jun 2008 11:12:06 GMT", "version": "v1" } ]
2011-05-05
[ [ "Fujii", "H.", "", "Tokyo U., Komaba" ], [ "Itakura", "K.", "", "KEK" ] ]
Strong longitudinal color flux fields will be created in the initial stage of high-energy nuclear collisions. We investigate analytically time evolution of such boost-invariant color fields from Abelian-like initial conditions, and next examine stability of the boost-invariant configurations against rapidity dependent ...
1410.1634
Y.H Ahn
Y. H. Ahn
Flavored Peccei-Quinn symmetry
60 pages, 6 figures, version to appear in Phys. Rev. D
Phys. Rev. D 91, 056005 (2015)
10.1103/PhysRevD.91.056005
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In an attempt to uncover any underlying physics in the standard model (SM), we suggest a $\mu$--$\tau$ power law in the lepton sector, such that relatively large 13 mixing angle with bi-large ones can be derived. On the basis of this, we propose a neat and economical model for both the fermion mass hierarchy problem ...
[ { "created": "Tue, 7 Oct 2014 07:45:31 GMT", "version": "v1" }, { "created": "Tue, 10 Feb 2015 10:16:11 GMT", "version": "v2" } ]
2015-03-18
[ [ "Ahn", "Y. H.", "" ] ]
In an attempt to uncover any underlying physics in the standard model (SM), we suggest a $\mu$--$\tau$ power law in the lepton sector, such that relatively large 13 mixing angle with bi-large ones can be derived. On the basis of this, we propose a neat and economical model for both the fermion mass hierarchy problem of...
hep-ph/9912366
Sadek Wagdy Mansour
T.K. Kuo, Guo-Hong Wu, and Sadek W. Mansour
Mass Hierarchies and the Seesaw Neutrino Mixing
11 pages, no figures, replaced with final version. Minor corrections and one typo corrected. Added one reference
Phys.Rev.D61:111301,2000
10.1103/PhysRevD.61.111301
PURD-TH-99-09
hep-ph
null
We give a general analysis of neutrino mixing in the seesaw mechanism with three flavors. Assuming that the Dirac and u-quark mass matrices are similar, we establish simple relations between the neutrino parameters and individual Majorana masses. They are shown to depend rather strongly on the physical neutrino mixin...
[ { "created": "Wed, 15 Dec 1999 20:52:02 GMT", "version": "v1" }, { "created": "Mon, 20 Mar 2000 15:46:31 GMT", "version": "v2" } ]
2009-12-30
[ [ "Kuo", "T. K.", "" ], [ "Wu", "Guo-Hong", "" ], [ "Mansour", "Sadek W.", "" ] ]
We give a general analysis of neutrino mixing in the seesaw mechanism with three flavors. Assuming that the Dirac and u-quark mass matrices are similar, we establish simple relations between the neutrino parameters and individual Majorana masses. They are shown to depend rather strongly on the physical neutrino mixing ...