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1805.11717
Pasquale Di Bari
Marco Chianese, Pasquale Di Bari, Kareem Farrag and Rome Samanta
Probing relic neutrino decays with 21 cm cosmology
18 pages. 2 figures; v2: It matches PLB version
null
10.1016/j.physletb.2018.09.040
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show how 21 cm cosmology can test relic neutrino radiative decays into sterile neutrinos. Using recent EDGES results, we derive constraints on the lifetime of the decaying neutrinos. If the EDGES anomaly will be confirmed, then there are two solutions, one for much longer and one for much shorter lifetimes than th...
[ { "created": "Tue, 29 May 2018 21:34:25 GMT", "version": "v1" }, { "created": "Thu, 20 Sep 2018 16:28:32 GMT", "version": "v2" } ]
2018-10-29
[ [ "Chianese", "Marco", "" ], [ "Di Bari", "Pasquale", "" ], [ "Farrag", "Kareem", "" ], [ "Samanta", "Rome", "" ] ]
We show how 21 cm cosmology can test relic neutrino radiative decays into sterile neutrinos. Using recent EDGES results, we derive constraints on the lifetime of the decaying neutrinos. If the EDGES anomaly will be confirmed, then there are two solutions, one for much longer and one for much shorter lifetimes than the ...
hep-ph/9507217
Vladimir A. Saleev
V.Saleev
Charm Photoproduction At Large Transverse Momentum And The Charm Content Of The Photon
LaTeX, 4 pages, 4 figures are not included
null
null
SSU-HEP-95/04
hep-ph
null
The charm quark photoproduction at large transverse momentum in the resolved photon interaction via partonic subprocess $\cg$ is studied. It is shown that at HERA energies the contribution of the charm quark excitation in the photon in the inclusive charm production at $\pt>5$ GeV/c dominates over the other resolved ...
[ { "created": "Tue, 4 Jul 1995 07:18:56 GMT", "version": "v1" } ]
2007-05-23
[ [ "Saleev", "V.", "" ] ]
The charm quark photoproduction at large transverse momentum in the resolved photon interaction via partonic subprocess $\cg$ is studied. It is shown that at HERA energies the contribution of the charm quark excitation in the photon in the inclusive charm production at $\pt>5$ GeV/c dominates over the other resolved ph...
1911.08495
Yehonatan Viernik
Elina Fuchs, Marta Losada, Yosef Nir and Yehonatan Viernik
Implications of the upper bound on $\boldsymbol{h\to\mu^+\mu^-}$ on the baryon asymmetry of the Universe
5 pages, 1 figure
Phys. Rev. Lett. 124, 181801 (2020)
10.1103/PhysRevLett.124.181801
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The upper bounds from the ATLAS and CMS experiments on the decay rate of the Higgs boson to two muons provide the strongest constraint on an imaginary part of the muon Yukawa coupling. This bound is more than an order of magnitude stronger than bounds from $\mathcal{CP}$-violating observables, specifically the electr...
[ { "created": "Tue, 19 Nov 2019 19:00:02 GMT", "version": "v1" }, { "created": "Fri, 20 Dec 2019 11:19:34 GMT", "version": "v2" }, { "created": "Tue, 14 Jul 2020 16:28:01 GMT", "version": "v3" } ]
2020-07-15
[ [ "Fuchs", "Elina", "" ], [ "Losada", "Marta", "" ], [ "Nir", "Yosef", "" ], [ "Viernik", "Yehonatan", "" ] ]
The upper bounds from the ATLAS and CMS experiments on the decay rate of the Higgs boson to two muons provide the strongest constraint on an imaginary part of the muon Yukawa coupling. This bound is more than an order of magnitude stronger than bounds from $\mathcal{CP}$-violating observables, specifically the electric...
2204.10265
Victor Baules
Victor Baules and Nobuchika Okada
Experimentally distinguishable origin for electroweak symmetry breaking
12 pages, 4 figures
null
null
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
We consider a classically conformal $U(1)$ gauge extension of the Standard Model (SM), in which the $U(1)$ gauge symmetry is radiatively broken by the Coleman-Weinberg mechanism. This breaking triggers the electroweak (EW) symmetry breaking through a mixed quartic coupling between the $U(1)$ Higgs field and the SM Hi...
[ { "created": "Thu, 21 Apr 2022 17:06:40 GMT", "version": "v1" } ]
2022-04-22
[ [ "Baules", "Victor", "" ], [ "Okada", "Nobuchika", "" ] ]
We consider a classically conformal $U(1)$ gauge extension of the Standard Model (SM), in which the $U(1)$ gauge symmetry is radiatively broken by the Coleman-Weinberg mechanism. This breaking triggers the electroweak (EW) symmetry breaking through a mixed quartic coupling between the $U(1)$ Higgs field and the SM Higg...
2211.01421
Tilman Plehn
Tilman Plehn, Anja Butter, Barry Dillon, Theo Heimel, Claudius Krause, and Ramon Winterhalder
Modern Machine Learning for LHC Physicists
Further expanded v3, we very much appreciate feedback
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Modern machine learning is transforming particle physics fast, bullying its way into our numerical tool box. For young researchers it is crucial to stay on top of this development, which means applying cutting-edge methods and tools to the full range of LHC physics problems. These lecture notes lead students with bas...
[ { "created": "Wed, 2 Nov 2022 18:27:27 GMT", "version": "v1" }, { "created": "Sun, 17 Mar 2024 20:25:51 GMT", "version": "v2" }, { "created": "Fri, 12 Apr 2024 06:36:23 GMT", "version": "v3" } ]
2024-04-15
[ [ "Plehn", "Tilman", "" ], [ "Butter", "Anja", "" ], [ "Dillon", "Barry", "" ], [ "Heimel", "Theo", "" ], [ "Krause", "Claudius", "" ], [ "Winterhalder", "Ramon", "" ] ]
Modern machine learning is transforming particle physics fast, bullying its way into our numerical tool box. For young researchers it is crucial to stay on top of this development, which means applying cutting-edge methods and tools to the full range of LHC physics problems. These lecture notes lead students with basic...
0807.3307
Alexandre Kisselev
A.V. Kisselev
Gravity effects in inclined air showers induced by cosmic neutrino
10 pages, 3 figures; 2 figures, 4 references and corrections are added
Open Astron.J.2:12-15,2009
10.2174/1874381100902010012
null
hep-ph astro-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Randall-Sundrum model with a small curvature is considered in which five-dimensional Planck scale lies in the TeV region, and a spectrum of Kaluza-Klein gravitons reminds that in one flat extra dimension. The cross sections for interactions of ultra-high energy cosmic neutrinos with nucleons are calculated. It is...
[ { "created": "Mon, 21 Jul 2008 16:39:16 GMT", "version": "v1" }, { "created": "Fri, 5 Sep 2008 10:21:37 GMT", "version": "v2" }, { "created": "Tue, 9 Sep 2008 07:34:49 GMT", "version": "v3" } ]
2009-06-22
[ [ "Kisselev", "A. V.", "" ] ]
The Randall-Sundrum model with a small curvature is considered in which five-dimensional Planck scale lies in the TeV region, and a spectrum of Kaluza-Klein gravitons reminds that in one flat extra dimension. The cross sections for interactions of ultra-high energy cosmic neutrinos with nucleons are calculated. It is s...
1408.6699
Andrew Fowlie Dr.
Andrew Fowlie and Luca Marzola
Testing quark mixing in minimal left-right symmetric models with $b$-tags at the LHC
14 pages, 4 figures. Matches version published in Nucl.Phys. B. Expanded descriptions of figures but conclusions unchanged
Nucl.Phys. B889 (2014) 36-45
10.1016/j.nuclphysb.2014.10.009
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivated by a hint in a CMS search for right-handed $W$-bosons in $eejj$ final states, we propose an experimental test of quark-mixing matrices in a general left-right symmetric model, based on counting the numbers of $b$-tags from right-handed $W$-boson hadronic decays. We find that, with our test, differences betw...
[ { "created": "Thu, 28 Aug 2014 12:17:45 GMT", "version": "v1" }, { "created": "Mon, 10 Nov 2014 10:53:14 GMT", "version": "v2" } ]
2016-09-19
[ [ "Fowlie", "Andrew", "" ], [ "Marzola", "Luca", "" ] ]
Motivated by a hint in a CMS search for right-handed $W$-bosons in $eejj$ final states, we propose an experimental test of quark-mixing matrices in a general left-right symmetric model, based on counting the numbers of $b$-tags from right-handed $W$-boson hadronic decays. We find that, with our test, differences betwee...
1912.05520
Jean-Loup Tastet
Jean-Loup Tastet and Inar Timiryasov
Dirac vs. Majorana HNLs (and their oscillations) at SHiP
37 pages, 13 figures
JHEP04(2020)005
10.1007/JHEP04(2020)005
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
SHiP is a proposed high-intensity beam dump experiment set to operate at the CERN SPS. It is expected to have an unprecedented sensitivity to a variety of models containing feebly interacting particles, such as Heavy Neutral Leptons (HNLs). Two HNLs or more could successfully explain the observed neutrino masses thro...
[ { "created": "Wed, 11 Dec 2019 18:44:53 GMT", "version": "v1" }, { "created": "Mon, 6 Apr 2020 15:47:05 GMT", "version": "v2" } ]
2020-04-07
[ [ "Tastet", "Jean-Loup", "" ], [ "Timiryasov", "Inar", "" ] ]
SHiP is a proposed high-intensity beam dump experiment set to operate at the CERN SPS. It is expected to have an unprecedented sensitivity to a variety of models containing feebly interacting particles, such as Heavy Neutral Leptons (HNLs). Two HNLs or more could successfully explain the observed neutrino masses throug...
2210.17477
Matteo Becchetti
Simon Badger, Matteo Becchetti, Ekta Chaubey, Robin Marzucca
Two-loop master integrals for a planar topology contributing to $pp \rightarrow t\bar{t}j$
31 pages, 47 figures, ancillary material attached to the submission. Version v3 as published in JHEP
null
10.1007/JHEP01(2023)156
null
hep-ph hep-th
http://creativecommons.org/licenses/by/4.0/
We consider the case of a two-loop five-point pentagon-box integral configuration with one internal massive propagator that contributes to top-quark pair production in association with a jet at hadron colliders. We construct the system of differential equations for all the master integrals in a canonical form where t...
[ { "created": "Mon, 31 Oct 2022 17:04:49 GMT", "version": "v1" }, { "created": "Wed, 16 Nov 2022 13:55:20 GMT", "version": "v2" }, { "created": "Thu, 30 Mar 2023 08:12:54 GMT", "version": "v3" } ]
2023-03-31
[ [ "Badger", "Simon", "" ], [ "Becchetti", "Matteo", "" ], [ "Chaubey", "Ekta", "" ], [ "Marzucca", "Robin", "" ] ]
We consider the case of a two-loop five-point pentagon-box integral configuration with one internal massive propagator that contributes to top-quark pair production in association with a jet at hadron colliders. We construct the system of differential equations for all the master integrals in a canonical form where the...
hep-ph/9804214
null
J.R. Espinosa (CERN-TH), A. Riotto (CERN-TH) and G.G. Ross (Oxford)
D-term Inflation in Superstring Theories
19 pages, LaTeX file
Nucl.Phys. B531 (1998) 461-477
10.1016/S0550-3213(98)00592-6
CERN-TH/97-7
hep-ph astro-ph hep-th
null
An inflationary stage dominated by a $D$-term avoids the slow-roll problem of inflation in supergravity and may emerge in theories with a non-anomalous or anomalous U(1) gauge symmetry. The most intriguing and commonly invoked possibility is that the Fayet-Iliopoulos $D$-term triggering inflation is the one emerging ...
[ { "created": "Thu, 2 Apr 1998 13:07:57 GMT", "version": "v1" } ]
2009-10-31
[ [ "Espinosa", "J. R.", "", "CERN-TH" ], [ "Riotto", "A.", "", "CERN-TH" ], [ "Ross", "G. G.", "", "Oxford" ] ]
An inflationary stage dominated by a $D$-term avoids the slow-roll problem of inflation in supergravity and may emerge in theories with a non-anomalous or anomalous U(1) gauge symmetry. The most intriguing and commonly invoked possibility is that the Fayet-Iliopoulos $D$-term triggering inflation is the one emerging in...
2211.04490
Rick Gupta
Rick S. Gupta, Joerg Jaeckel and Michael Spannowsky
Probing Poincar\'e Violation
35 pages, 6 figures,
null
null
IPPP/22/42
hep-ph hep-ex hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Time and space translation invariance, giving rise to energy and momentum conservation, are not only amongst the most fundamental but also the most generally accepted symmetry assumptions in physics. It is nevertheless prudent to put such assumptions to experimental and observational tests. In this note, we take the ...
[ { "created": "Tue, 8 Nov 2022 19:00:13 GMT", "version": "v1" } ]
2022-11-10
[ [ "Gupta", "Rick S.", "" ], [ "Jaeckel", "Joerg", "" ], [ "Spannowsky", "Michael", "" ] ]
Time and space translation invariance, giving rise to energy and momentum conservation, are not only amongst the most fundamental but also the most generally accepted symmetry assumptions in physics. It is nevertheless prudent to put such assumptions to experimental and observational tests. In this note, we take the fi...
2312.06526
Adrian Irles
E. Musumeci (1), A. Irles (1), R. Perez-Ramos (2,3), I. Corredoira (4), E. Sarkisyan-Grinbaum (5,6), V. A. Mitsou (1,7) and M. A. Sanchis-Lozano (1) ((1) Instituto de F\'isica Corpuscular, CSIC - University of Valencia, Paterna (Valencia), Spain, (2) DRII-IPSA, Ivry-sur-Seine, France, (3) Laboratoire de Physiqu...
Exploring hidden sectors with two-particle angular correlations at future $e^{+}e^{-}$ colliders
To be submitted to PRL
null
null
IFIC/23-50
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
Future $e^+e^-$ colliders are called to play a fundamental role in measuring Standard Model (SM) parameters with unprecedented precision and the discovery of physics beyond the SM (BSM). This study focus on a QCD-like Hidden Valley (HV) scenario, with relatively light v-quarks ($\lesssim 100$ GeV), perturbing the QCD...
[ { "created": "Mon, 11 Dec 2023 17:04:04 GMT", "version": "v1" } ]
2023-12-12
[ [ "Musumeci", "E.", "" ], [ "Irles", "A.", "" ], [ "Perez-Ramos", "R.", "" ], [ "Corredoira", "I.", "" ], [ "Sarkisyan-Grinbaum", "E.", "" ], [ "Mitsou", "V. A.", "" ], [ "Sanchis-Lozano", "M. A.", "" ] ]
Future $e^+e^-$ colliders are called to play a fundamental role in measuring Standard Model (SM) parameters with unprecedented precision and the discovery of physics beyond the SM (BSM). This study focus on a QCD-like Hidden Valley (HV) scenario, with relatively light v-quarks ($\lesssim 100$ GeV), perturbing the QCD p...
1111.6005
Jan Hajer
S. Bobrovskyi, F. Br\"ummer, W. Buchmuller and J. Hajer
Searching for light higgsinos with b-jets and missing leptons
16 pages, 3 figures, 8 tables
null
10.1007/JHEP01(2012)122
DESY 11-221
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A recently proposed class of supersymmetric models predicts rather light and nearly mass-degenerate higgsinos, while the other superparticles are significantly heavier. In this paper we study the early LHC phenomenology of a benchmark model of this kind. If the squarks and gluinos, and in particular the lighter stop,...
[ { "created": "Fri, 25 Nov 2011 14:44:26 GMT", "version": "v1" } ]
2015-06-03
[ [ "Bobrovskyi", "S.", "" ], [ "Brümmer", "F.", "" ], [ "Buchmuller", "W.", "" ], [ "Hajer", "J.", "" ] ]
A recently proposed class of supersymmetric models predicts rather light and nearly mass-degenerate higgsinos, while the other superparticles are significantly heavier. In this paper we study the early LHC phenomenology of a benchmark model of this kind. If the squarks and gluinos, and in particular the lighter stop, a...
2303.14299
Thomas A. Trainor
Thomas A. Trainor
Systematic analysis of (multi)strange hadron $p_t$ spectra from small collision systems at the large hadron collider
21 pages, 13 figures
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Small collision systems, e.g. $p$-$p$ and $p$-Pb collisions, comprise a potential reference for more-central A-A collisions with regard to production (or not) of a thermalized quark-gluon plasma (QGP). Small systems with low particle densities should evolve according to simple QCD mechanisms including projectile-nucl...
[ { "created": "Fri, 24 Mar 2023 23:23:19 GMT", "version": "v1" } ]
2023-03-28
[ [ "Trainor", "Thomas A.", "" ] ]
Small collision systems, e.g. $p$-$p$ and $p$-Pb collisions, comprise a potential reference for more-central A-A collisions with regard to production (or not) of a thermalized quark-gluon plasma (QGP). Small systems with low particle densities should evolve according to simple QCD mechanisms including projectile-nucleo...
2204.13134
Jonathan Kriewald
J. Kriewald, J. Orloff, E. Pinsard, A. M. Teixeira
Prospects for a flavour violating $Z^\prime$ explanation of $\Delta a_{\mu,e}$
36 pages, 15 figures, v3: minor changes, few clarifications added, results and conclusions unchanged, matches version published in EPJC
null
10.1140/epjc/s10052-022-10776-1
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
The apparent tensions emerging from the comparison of experimental data of the anomalous magnetic moments of the muon and electron to the Standard Model predictions ($\Delta a_{\mu,e}$) could be interpreted as a potential signal of New Physics. Models encompassing a light vector boson have been known to offer a satis...
[ { "created": "Wed, 27 Apr 2022 18:04:26 GMT", "version": "v1" }, { "created": "Wed, 6 Jul 2022 16:06:33 GMT", "version": "v2" }, { "created": "Mon, 17 Oct 2022 10:29:54 GMT", "version": "v3" } ]
2022-10-18
[ [ "Kriewald", "J.", "" ], [ "Orloff", "J.", "" ], [ "Pinsard", "E.", "" ], [ "Teixeira", "A. M.", "" ] ]
The apparent tensions emerging from the comparison of experimental data of the anomalous magnetic moments of the muon and electron to the Standard Model predictions ($\Delta a_{\mu,e}$) could be interpreted as a potential signal of New Physics. Models encompassing a light vector boson have been known to offer a satisfa...
2302.06623
Maximilian Stahlhofen
Piotr Pietrulewicz and Maximilian Stahlhofen
Two-loop bottom mass effects on the Higgs transverse momentum spectrum in top-induced gluon fusion
38 pages, 6 figures; v2: journal version
JHEP05(2023)175
10.1007/JHEP05(2023)175
FR-PHENO-2023-03
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We compute bottom mass ($m_b$) corrections to the transverse momentum ($q_T$) spectrum of Higgs bosons produced by gluon fusion in the regime $q_T \sim m_b \ll m_H$ at leading power in $m_b/m_H$ and $q_T/m_H$, where the gluons couple to the Higgs via a top loop. To this end we calculate the quark mass dependence of t...
[ { "created": "Mon, 13 Feb 2023 19:00:00 GMT", "version": "v1" }, { "created": "Wed, 24 May 2023 21:26:19 GMT", "version": "v2" } ]
2023-05-26
[ [ "Pietrulewicz", "Piotr", "" ], [ "Stahlhofen", "Maximilian", "" ] ]
We compute bottom mass ($m_b$) corrections to the transverse momentum ($q_T$) spectrum of Higgs bosons produced by gluon fusion in the regime $q_T \sim m_b \ll m_H$ at leading power in $m_b/m_H$ and $q_T/m_H$, where the gluons couple to the Higgs via a top loop. To this end we calculate the quark mass dependence of the...
hep-ph/0605195
Qiuyu Liu
B.L. Chen (1), H.L. Ge (1), C. Giunti (2), Q.Y. Liu (1) ((1) CUST, Hefei, (2) INFN, Turin & Turin U.)
Testing the Stability of the Solar Neutrino LMA Solution with a Bayesian Analysis
13 pages, 15 eps figures
Mod.Phys.Lett. A21 (2006) 2269-2282
10.1142/S0217732306021608
null
hep-ph
null
We analyze with the Bayesian method the solar and KamLAND neutrino data in terms of neutrino oscillations. We show that Bayesian credible regions with a flat prior in the tan^2(theta12)--(Delta m^2)_21 plane strongly support the LMA solution, in agreement with the usual chi-square analysis. Other reasonable priors ar...
[ { "created": "Wed, 17 May 2006 09:55:59 GMT", "version": "v1" } ]
2009-11-11
[ [ "Chen", "B. L.", "" ], [ "Ge", "H. L.", "" ], [ "Giunti", "C.", "" ], [ "Liu", "Q. Y.", "" ] ]
We analyze with the Bayesian method the solar and KamLAND neutrino data in terms of neutrino oscillations. We show that Bayesian credible regions with a flat prior in the tan^2(theta12)--(Delta m^2)_21 plane strongly support the LMA solution, in agreement with the usual chi-square analysis. Other reasonable priors are ...
1710.05523
Ying Zhang
Ying Zhang
An open window to neutrino mass hierarchy at maximal Dirac CP violation
6 pages, 2 figures and 1 table
null
null
null
hep-ph
http://creativecommons.org/licenses/by-nc-sa/4.0/
Non-zero leptonic CP phases in the neutrino sector are clear evidence for physics beyond the Standard Model and have many implications in particle physics and cosmology. Some clues to maximal Dirac CP violation $\delta_{CP}=3\pi/2$ are reviewed. An approach to connect the Dirac CP violation phase and the neutrino mas...
[ { "created": "Mon, 16 Oct 2017 06:01:20 GMT", "version": "v1" } ]
2017-10-17
[ [ "Zhang", "Ying", "" ] ]
Non-zero leptonic CP phases in the neutrino sector are clear evidence for physics beyond the Standard Model and have many implications in particle physics and cosmology. Some clues to maximal Dirac CP violation $\delta_{CP}=3\pi/2$ are reviewed. An approach to connect the Dirac CP violation phase and the neutrino mass ...
hep-ph/9209262
null
H.Y. Cheng, C.Y. Cheung, G.L. Lin, Y.C. Lin, T.M. Yan, and H.L. Yu
Chiral Lagrangians for Radiative Decays of Heavy Hadrons
30 pages (one figure, available on request), CLNS 92/1158 and IP-ASTP-13-92
Phys.Rev. D47 (1993) 1030-1042
10.1103/PhysRevD.47.1030
null
hep-ph
null
The radiative decays of heavy mesons and heavy baryons are studied in a formalism which incorporates both the heavy quark symmetry and the chiral symmetry. The chiral Lagrangians for the electromagnetic interactions of heavy hadrons consist of two pieces: one from gauging electromagnetically the strong-interaction ch...
[ { "created": "Mon, 21 Sep 1992 19:04:00 GMT", "version": "v1" } ]
2009-10-22
[ [ "Cheng", "H. Y.", "" ], [ "Cheung", "C. Y.", "" ], [ "Lin", "G. L.", "" ], [ "Lin", "Y. C.", "" ], [ "Yan", "T. M.", "" ], [ "Yu", "H. L.", "" ] ]
The radiative decays of heavy mesons and heavy baryons are studied in a formalism which incorporates both the heavy quark symmetry and the chiral symmetry. The chiral Lagrangians for the electromagnetic interactions of heavy hadrons consist of two pieces: one from gauging electromagnetically the strong-interaction chir...
hep-ph/0112058
Sean Fleming
Sean Fleming (Carnegie Mellon University)
Production & Decay of Quarkonium
Invited talk: 9th International Symposium on Heavy Flavor Physics
AIP Conf.Proc. 618 (2002) 405-414
10.1063/1.1478859
null
hep-ph
null
In this talk I review NRQCD predictions for the production of charmonium at the Tevatron. After a quick presentation of the NRQCD factorization formalism for production and decay I review some old results and discuss how they compare to recent data. Following this I discuss some recent work done with Adam Leibovich a...
[ { "created": "Tue, 4 Dec 2001 19:18:26 GMT", "version": "v1" } ]
2009-11-07
[ [ "Fleming", "Sean", "", "Carnegie Mellon University" ] ]
In this talk I review NRQCD predictions for the production of charmonium at the Tevatron. After a quick presentation of the NRQCD factorization formalism for production and decay I review some old results and discuss how they compare to recent data. Following this I discuss some recent work done with Adam Leibovich and...
hep-ph/9305207
Sergei Khlebnikov
S. Yu. Khlebnikov
Disoriented chiral condensate in (1+1) Lorentz-invariant geometry
9 pages, LATEX, UCLA/93/TEP/10
Mod.Phys.Lett. A8 (1993) 1901-1908
10.1142/S0217732393001628
null
hep-ph
null
We consider isospin correlations of pions produced in a relativistic nuclear collision, using an effective theory of the chiral order parameter. Our theory has (1+1) Lorentz invariance as appropriate for the central rapidity region. We argue that in certain regions of space correlations of the chiral order parameter ...
[ { "created": "Tue, 4 May 1993 00:41:00 GMT", "version": "v1" } ]
2015-06-25
[ [ "Khlebnikov", "S. Yu.", "" ] ]
We consider isospin correlations of pions produced in a relativistic nuclear collision, using an effective theory of the chiral order parameter. Our theory has (1+1) Lorentz invariance as appropriate for the central rapidity region. We argue that in certain regions of space correlations of the chiral order parameter ar...
2311.01353
Evgeny Zhemchugov
E. V. Zhemchugov, S. I. Godunov, E. K. Karkaryan, V. A. Novikov, A. N. Rozanov, M. I. Vysotsky
libepa -- a C++/Python library for calculations of cross sections of ultraperipheral collisions
25 pages, 6 figures, 1 table. See the arXiv archive for supplementary materials (code)
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The library provides a set of C++/Python functions for computing cross sections of ultraperipheral collisions of high energy particles under the equivalent photons approximation. Cross sections are represented through multiple integrals over the phase space. The integrals are calculated through recurrent application ...
[ { "created": "Thu, 2 Nov 2023 16:01:15 GMT", "version": "v1" } ]
2023-11-03
[ [ "Zhemchugov", "E. V.", "" ], [ "Godunov", "S. I.", "" ], [ "Karkaryan", "E. K.", "" ], [ "Novikov", "V. A.", "" ], [ "Rozanov", "A. N.", "" ], [ "Vysotsky", "M. I.", "" ] ]
The library provides a set of C++/Python functions for computing cross sections of ultraperipheral collisions of high energy particles under the equivalent photons approximation. Cross sections are represented through multiple integrals over the phase space. The integrals are calculated through recurrent application of...
0712.4210
Andre Sopczak
A. Sopczak, A. Freitas, C. Milstene, M. Schmitt
Precision Measurements of the Stop Quark Mass at the ILC
4 pages, 4 figures, presented at SUSY'07, Karlsruhe
null
null
null
hep-ph
null
Most supersymmetric models predict new particles within the reach of the next generation of colliders. For an understanding of the model structure and the mechanism(s) of electroweak symmetry breaking, it is important to know the masses of the new particles precisely. The measurement of the mass of the scalar partner...
[ { "created": "Thu, 27 Dec 2007 10:30:15 GMT", "version": "v1" } ]
2007-12-28
[ [ "Sopczak", "A.", "" ], [ "Freitas", "A.", "" ], [ "Milstene", "C.", "" ], [ "Schmitt", "M.", "" ] ]
Most supersymmetric models predict new particles within the reach of the next generation of colliders. For an understanding of the model structure and the mechanism(s) of electroweak symmetry breaking, it is important to know the masses of the new particles precisely. The measurement of the mass of the scalar partner o...
0706.3909
Olga Mena Requejo
Olga Mena (INFN, Rome; Rome U.), Sergio Palomares-Ruiz and Silvia Pascoli (Durham U., IPPP)
Reconstructing WIMP properties with neutrino detectors
4 pp, 2 figs; revised version accepted for publication with further discussions and references
Phys.Lett.B664:92-96,2008
10.1016/j.physletb.2008.04.059
IPPP/07/34, DCPT/07/68
hep-ph astro-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
If the dark matter of the Universe is constituted by weakly interacting massive particles (WIMP), they would accumulate in the core of astrophysical objects as the Sun and annihilate into particles of the Standard Model. High-energy neutrinos would be produced in the annihilations, both directly and via the subsequen...
[ { "created": "Wed, 27 Jun 2007 18:48:18 GMT", "version": "v1" }, { "created": "Thu, 26 Jun 2008 17:18:45 GMT", "version": "v2" } ]
2008-11-26
[ [ "Mena", "Olga", "", "INFN, Rome; Rome U." ], [ "Palomares-Ruiz", "Sergio", "", "Durham U., IPPP" ], [ "Pascoli", "Silvia", "", "Durham U., IPPP" ] ]
If the dark matter of the Universe is constituted by weakly interacting massive particles (WIMP), they would accumulate in the core of astrophysical objects as the Sun and annihilate into particles of the Standard Model. High-energy neutrinos would be produced in the annihilations, both directly and via the subsequent ...
hep-ph/9503302
Xerxes Tata
Xerxes Tata
Recent Developments in supersymmetry Search Strategies
Talk presented at the 11th Dep't of Atomic Energy Symposium, Visvabharati University, Santiniketan, India. 19 pages. World_sci.sty attached after Latex file; Figures may be obtained by regular mail or fax from the Author.
null
null
UH-511-820-95
hep-ph
null
After a quick review of the framework for phenomenological analyses of supersymmetry, we summarize current limits on supersymmetric particle masses and discuss strategies for their searches at the Fermilab Tevatron and the LHC. We also discuss the sense in which such searches as well as those that may be carried out ...
[ { "created": "Sat, 11 Mar 1995 22:10:53 GMT", "version": "v1" } ]
2016-09-01
[ [ "Tata", "Xerxes", "" ] ]
After a quick review of the framework for phenomenological analyses of supersymmetry, we summarize current limits on supersymmetric particle masses and discuss strategies for their searches at the Fermilab Tevatron and the LHC. We also discuss the sense in which such searches as well as those that may be carried out at...
1503.00009
Hou Keong Lou
Timothy Cohen, Mariangela Lisanti, Hou Keong Lou
Semi-visible Jets: Dark Matter Undercover at the LHC
5 pages, 3 figures. v3: Supplementary material and references added. Model changed from scalar to fermionic dark quarks and figures updated accordingly. Conclusions unchanged
Phys. Rev. Lett. 115, 171804 (2015)
10.1103/PhysRevLett.115.171804
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The dark matter may be a composite particle that is accessible via a weakly coupled portal. If these hidden-sector states are produced at the Large Hadron Collider (LHC), they would undergo a QCD-like shower. This would result in a spray of stable invisible dark matter along with unstable states that decay back to th...
[ { "created": "Fri, 27 Feb 2015 21:01:27 GMT", "version": "v1" }, { "created": "Fri, 27 Mar 2015 19:02:31 GMT", "version": "v2" }, { "created": "Tue, 14 Jul 2015 20:23:59 GMT", "version": "v3" } ]
2015-10-28
[ [ "Cohen", "Timothy", "" ], [ "Lisanti", "Mariangela", "" ], [ "Lou", "Hou Keong", "" ] ]
The dark matter may be a composite particle that is accessible via a weakly coupled portal. If these hidden-sector states are produced at the Large Hadron Collider (LHC), they would undergo a QCD-like shower. This would result in a spray of stable invisible dark matter along with unstable states that decay back to the ...
hep-ph/0512055
Shouhua Zhu
Shou-hua Zhu
Detecting an invisible Higgs boson at Fermilab Tevatron and CERN LHC
4 Revtex pages including 2 figures
Eur.Phys.J.C47:833-837,2006
10.1140/epjc/s2006-02607-6
null
hep-ph hep-ex
null
In this paper, we study the observability of an invisible Higgs boson at Fermilab Tevatron and CERN LHC through the production channel $ q \bar{q} \to Z H \to \ell^+\ell^-+ \ptmiss $, where $\ptmiss$ is reconstructed from the $\ell^+\ell^-$ with $\ell=e$ or $\mu$. A new strategy is proposed to eliminate the largest i...
[ { "created": "Mon, 5 Dec 2005 02:30:31 GMT", "version": "v1" }, { "created": "Wed, 14 Dec 2005 03:21:24 GMT", "version": "v2" }, { "created": "Fri, 27 Jan 2006 08:30:18 GMT", "version": "v3" } ]
2009-01-07
[ [ "Zhu", "Shou-hua", "" ] ]
In this paper, we study the observability of an invisible Higgs boson at Fermilab Tevatron and CERN LHC through the production channel $ q \bar{q} \to Z H \to \ell^+\ell^-+ \ptmiss $, where $\ptmiss$ is reconstructed from the $\ell^+\ell^-$ with $\ell=e$ or $\mu$. A new strategy is proposed to eliminate the largest irr...
0709.0065
Alejandro Cabo
Alejandro Cabo Montes de Oca
Renormalized Wick expansion for a modified PQCD
13 pages, one figure
Eur.Phys.J.C55:85-93,2008
10.1140/epjc/s10052-008-0565-y
ICTP Preprint IC/2007/083 August (2007)
hep-ph
null
The renormalization scheme for the Wick expansion of a modified version of the perturbative QCD introduced in previous works is discussed. Massless QCD is considered, by implementing the usual multiplicative scaling of the gluon and quark wave functions and vertices. However, also massive quark and gluon counter-term...
[ { "created": "Sat, 1 Sep 2007 14:21:12 GMT", "version": "v1" } ]
2014-11-18
[ [ "de Oca", "Alejandro Cabo Montes", "" ] ]
The renormalization scheme for the Wick expansion of a modified version of the perturbative QCD introduced in previous works is discussed. Massless QCD is considered, by implementing the usual multiplicative scaling of the gluon and quark wave functions and vertices. However, also massive quark and gluon counter-terms ...
hep-ph/9705370
D. P. Roy
D.P. Roy
New Physics from HERA?
LaTeX file (7 pages), 3 figures available on request, Made minor stylistic changes and added a reference
null
null
TIFR/TH/97-24
hep-ph
null
The H1 and ZEUS experiments at the HERA $e^\pm p$ collider at Hamburg have recently reported some anomalous hard-scattering events, which could be indicative of new physics beyond the standard model. I have tried to discuss in a nonspecialist language the significance of this result for particle physics along with it...
[ { "created": "Wed, 21 May 1997 11:26:13 GMT", "version": "v1" }, { "created": "Tue, 27 May 1997 11:52:37 GMT", "version": "v2" } ]
2008-02-03
[ [ "Roy", "D. P.", "" ] ]
The H1 and ZEUS experiments at the HERA $e^\pm p$ collider at Hamburg have recently reported some anomalous hard-scattering events, which could be indicative of new physics beyond the standard model. I have tried to discuss in a nonspecialist language the significance of this result for particle physics along with its ...
hep-ph/0409295
Makoto Oka
Makoto Oka
QCD Sum Rules of Pentaquarks
Invited talk presented at the PENTAQUARK04 at SPring-8 in July 20-23, 2004
null
10.1142/9789812701855_0049
null
hep-ph
null
QCD sum rule is applied to the pentaquark spectroscopy. It is concluded that no positive parity state is seen in low energy region, while there may exist negative parity states at around 1.5 GeV. Choice of interpolating local operators and relation to the lattice calculations are discussed.
[ { "created": "Sat, 25 Sep 2004 12:06:33 GMT", "version": "v1" } ]
2017-08-23
[ [ "Oka", "Makoto", "" ] ]
QCD sum rule is applied to the pentaquark spectroscopy. It is concluded that no positive parity state is seen in low energy region, while there may exist negative parity states at around 1.5 GeV. Choice of interpolating local operators and relation to the lattice calculations are discussed.
hep-ph/9907472
Andreas Vogt
W.L. van Neerven, A. Vogt (Leiden University)
NNLO evolution of deep-inelastic structure functions: the non-singlet case
29 pages, LaTeX, 13 eps-figures
Nucl.Phys.B568:263-286,2000
10.1016/S0550-3213(99)00668-9
INLO-PUB 14/99
hep-ph
null
We study the next-to-next-to-leading order (NNLO) evolution of flavour non-singlet quark densities and structure functions in massless perturbative QCD. Present information on the corresponding three-loop splitting functions is used to derive parametrizations of these quantities, including Bjorken-x dependent estimat...
[ { "created": "Fri, 23 Jul 1999 13:09:28 GMT", "version": "v1" } ]
2008-11-26
[ [ "van Neerven", "W. L.", "", "Leiden University" ], [ "Vogt", "A.", "", "Leiden University" ] ]
We study the next-to-next-to-leading order (NNLO) evolution of flavour non-singlet quark densities and structure functions in massless perturbative QCD. Present information on the corresponding three-loop splitting functions is used to derive parametrizations of these quantities, including Bjorken-x dependent estimates...
1111.3354
S.Rick Gupta
Rick S. Gupta
Probing Quartic Neutral Gauge Boson Couplings using diffractive photon fusion at the LHC
37 pages, 6 figures
null
10.1103/PhysRevD.85.014006
CERN-PH-TH/2011-284; MCTP-11-40
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A complete list of operators contributing at the lowest order to Quartic Neutral Gauge Boson Couplings involving photons and Z-bosons, is presented. We show that, for the couplings we consider, the lowest order contribution is from dimension 8 operators in the case when a light Higgs is present and from dimension 6 o...
[ { "created": "Mon, 14 Nov 2011 20:48:22 GMT", "version": "v1" } ]
2013-05-30
[ [ "Gupta", "Rick S.", "" ] ]
A complete list of operators contributing at the lowest order to Quartic Neutral Gauge Boson Couplings involving photons and Z-bosons, is presented. We show that, for the couplings we consider, the lowest order contribution is from dimension 8 operators in the case when a light Higgs is present and from dimension 6 ope...
2112.03920
Robert McGehee
Gilly Elor, Robert McGehee, Aaron Pierce
Maximizing Direct Detection with Highly Interactive Particle Relic Dark Matter
5+3 pages, 3 figures. v2: published in PRL with minor revisions
Phys. Rev. Lett. 130, 031803 (2023)
10.1103/PhysRevLett.130.031803
LCTP-21-26, MITP-21-044
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We estimate the maximum direct detection cross section for sub-GeV dark matter (DM) scattering off nucleons. For DM masses in the range $10 \text{ keV }- 100 \text{ MeV}$, cross sections greater than $10^{-36}$- $10^{-30} \,\text{cm}^2$ seem implausible. We present a DM candidate which realizes this maximum cross sec...
[ { "created": "Tue, 7 Dec 2021 19:00:00 GMT", "version": "v1" }, { "created": "Fri, 20 Jan 2023 22:08:40 GMT", "version": "v2" } ]
2023-01-24
[ [ "Elor", "Gilly", "" ], [ "McGehee", "Robert", "" ], [ "Pierce", "Aaron", "" ] ]
We estimate the maximum direct detection cross section for sub-GeV dark matter (DM) scattering off nucleons. For DM masses in the range $10 \text{ keV }- 100 \text{ MeV}$, cross sections greater than $10^{-36}$- $10^{-30} \,\text{cm}^2$ seem implausible. We present a DM candidate which realizes this maximum cross secti...
1507.01132
Kamel Khelifa-Kerfa
Kamel Khelifa-Kerfa, Yazid Delenda
Eikonal gluon radiation at finite-Nc beyond 2 loops
To appear in the proceedings of the XXIII International Workshop on Deep-Inelastic Scattering and Related Subjects, April 27 - May 1, 2015, Dallas, Texas, USA
POS(DIS2015)143
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present first calculations of QCD matrix-elements in perturbation theory at finite Nc beyond 2 loops in the eikonal approximation for e+ e- annihilation processes. For the emission of n soft energy-ordered gluons we solve both the colour and kinematic structures at a given order in perturbation theory by means of ...
[ { "created": "Sat, 4 Jul 2015 17:54:50 GMT", "version": "v1" } ]
2015-07-07
[ [ "Khelifa-Kerfa", "Kamel", "" ], [ "Delenda", "Yazid", "" ] ]
We present first calculations of QCD matrix-elements in perturbation theory at finite Nc beyond 2 loops in the eikonal approximation for e+ e- annihilation processes. For the emission of n soft energy-ordered gluons we solve both the colour and kinematic structures at a given order in perturbation theory by means of a ...
1804.02636
Xing-Gang Wu
Shi Bu, Xing-Gang Wu, Jian-Ming Shen, and Jun Zeng
Properties of the Free Energy Density Using the Principle of Maximum Conformality
7 pages, 4 figures
Chin. Phys. C 42 (2018) 083105
10.1088/1674-1137/42/8/083105
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a detailed study on the properties of the free energy density at the high temperature by applying the principle of maximum conformality (PMC) scale-setting method within the effective field theory. The PMC utilizes the renormalization group equation recursively to identify the occurrence and pattern of the...
[ { "created": "Sun, 8 Apr 2018 06:26:39 GMT", "version": "v1" } ]
2018-07-31
[ [ "Bu", "Shi", "" ], [ "Wu", "Xing-Gang", "" ], [ "Shen", "Jian-Ming", "" ], [ "Zeng", "Jun", "" ] ]
We present a detailed study on the properties of the free energy density at the high temperature by applying the principle of maximum conformality (PMC) scale-setting method within the effective field theory. The PMC utilizes the renormalization group equation recursively to identify the occurrence and pattern of the n...
1503.01773
Nicholas Rodd Mr
Gilly Elor, Nicholas L. Rodd and Tracy R. Slatyer
Multi-Step Cascade Annihilations of Dark Matter and the Galactic Center Excess
18 pages, 15 figures, 2 tables; comments welcome. Updated to published version
Phys. Rev. D 91, 103531 (2015)
10.1103/PhysRevD.91.103531
MIT-CTP/4647
hep-ph astro-ph.CO astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
If dark matter is embedded in a non-trivial dark sector, it may annihilate and decay to lighter dark-sector states which subsequently decay to the Standard Model. Such scenarios - with annihilation followed by cascading dark-sector decays - can explain the apparent excess GeV gamma-rays identified in the central Milk...
[ { "created": "Thu, 5 Mar 2015 21:00:13 GMT", "version": "v1" }, { "created": "Sat, 6 Jun 2015 16:08:08 GMT", "version": "v2" } ]
2015-06-09
[ [ "Elor", "Gilly", "" ], [ "Rodd", "Nicholas L.", "" ], [ "Slatyer", "Tracy R.", "" ] ]
If dark matter is embedded in a non-trivial dark sector, it may annihilate and decay to lighter dark-sector states which subsequently decay to the Standard Model. Such scenarios - with annihilation followed by cascading dark-sector decays - can explain the apparent excess GeV gamma-rays identified in the central Milky ...
hep-ph/9909553
Hong soon-tae
Soon-Tae Hong
Strange Form Factors of Octet and Decuplet Baryons
5 pages, Talk given at the 12th Nuclear Physics Summer School and Symposium and the 11th International Light-Cone Workshop "New Directions in QCD," 21-25 June 1999, Kyungju, Korea
AIP Conf.Proc.494:423-426,1999
10.1063/1.1301691
null
hep-ph
null
The strange form factors of baryon octet are evaluated, in the chiral models with the general chiral SU(3) group structure, to yield the theoretical predictions comparable to the recent experimental data of SAMPLE Collaboration and to study the spin symmetries. Other model predictions are also briefly reviewed to com...
[ { "created": "Wed, 29 Sep 1999 14:36:12 GMT", "version": "v1" } ]
2010-12-13
[ [ "Hong", "Soon-Tae", "" ] ]
The strange form factors of baryon octet are evaluated, in the chiral models with the general chiral SU(3) group structure, to yield the theoretical predictions comparable to the recent experimental data of SAMPLE Collaboration and to study the spin symmetries. Other model predictions are also briefly reviewed to compa...
1503.06671
Igor Strakovsky
V. E. Tarasov (ITEP), W. J. Briscoe (GW), M. Dieterle (Basel U.), B. Krusche (Basel U.), A. E. Kudryavtsev (ITEP/GW), M. Ostrick (JGU), I. I. Strakovsky (GW)
On the Extraction of Cross Sections for pi0 and eta Photoproduction off Neutrons from Deuteron Data
16 pages, 5 figures; v2 fixed several minor typos
null
10.1134/S1063778816020186
null
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the procedure of extracting the photoproduction cross section for neutral pseudoscalar mesons off neutrons from deuteron data. The main statement is that the final-state interaction (FSI) corrections for the proton and neutron target are in general not equal, but for pi0 production there are special cases ...
[ { "created": "Mon, 23 Mar 2015 14:56:59 GMT", "version": "v1" }, { "created": "Tue, 24 Mar 2015 18:42:49 GMT", "version": "v2" } ]
2016-11-18
[ [ "Tarasov", "V. E.", "", "ITEP" ], [ "Briscoe", "W. J.", "", "GW" ], [ "Dieterle", "M.", "", "Basel U." ], [ "Krusche", "B.", "", "Basel U." ], [ "Kudryavtsev", "A. E.", "", "ITEP/GW" ], [ "Ostrick", "M.", ...
We discuss the procedure of extracting the photoproduction cross section for neutral pseudoscalar mesons off neutrons from deuteron data. The main statement is that the final-state interaction (FSI) corrections for the proton and neutron target are in general not equal, but for pi0 production there are special cases we...
hep-ph/0006141
Jeno E. Kontros
J. Kontros, K. Kontros, A. Lengyel
Pomeron models and exchange degeneracy of the Regge trajectories
6 pages, LaTeX, 5 figures
null
null
null
hep-ph
null
Two models for the Pomeron, supplemented by exchange degenerate sub-leading Regge trajectories, are fitted to the forward scattering data for a number of reactions. By considering new Pomeron models, we extend the recent results of the COMPAS group, being consistent with our predecessors.
[ { "created": "Tue, 13 Jun 2000 18:13:02 GMT", "version": "v1" }, { "created": "Fri, 14 Jul 2000 21:37:24 GMT", "version": "v2" } ]
2007-05-23
[ [ "Kontros", "J.", "" ], [ "Kontros", "K.", "" ], [ "Lengyel", "A.", "" ] ]
Two models for the Pomeron, supplemented by exchange degenerate sub-leading Regge trajectories, are fitted to the forward scattering data for a number of reactions. By considering new Pomeron models, we extend the recent results of the COMPAS group, being consistent with our predecessors.
2310.07796
Fernando Alvarado
Fernando Alvarado, Di An, Luis Alvarez-Ruso and Stefan Leupold
Light quark mass dependence of nucleon electromagnetic form factors in dispersively modified chiral perturbation theory
27 pages, 13 figures. It contains supplementary material "anc"
null
null
null
hep-ph hep-lat hep-th nucl-th
http://creativecommons.org/licenses/by/4.0/
The nucleon isovector electromagnetic form factors are calculated up to next-to-next-to-leading order by combining relativistic chiral perturbation theory (ChPT) of pion, nucleon, and $\Delta$(1232) with dispersion theory. We specifically address the light-quark mass dependence of the form factors, achieving a good d...
[ { "created": "Wed, 11 Oct 2023 18:31:34 GMT", "version": "v1" }, { "created": "Fri, 15 Dec 2023 09:07:44 GMT", "version": "v2" } ]
2023-12-18
[ [ "Alvarado", "Fernando", "" ], [ "An", "Di", "" ], [ "Alvarez-Ruso", "Luis", "" ], [ "Leupold", "Stefan", "" ] ]
The nucleon isovector electromagnetic form factors are calculated up to next-to-next-to-leading order by combining relativistic chiral perturbation theory (ChPT) of pion, nucleon, and $\Delta$(1232) with dispersion theory. We specifically address the light-quark mass dependence of the form factors, achieving a good des...
hep-ph/0312231
Andrew Akeroyd
A.G. Akeroyd, Marco A. Diaz, Francisco J. Pacheco
Double fermiophobic Higgs boson production at the LHC and LC
19 pages, 9 figures, expanded discussion, fig.1 changed slightly, version to appear in Phys.Rev.D
Phys.Rev.D70:075002,2004
10.1103/PhysRevD.70.075002
KIAS-P03080, UCCHEP/24-03
hep-ph
null
We consider the phenomenology of a fermiophobic Higgs boson (h_f) at the Large Hadron Collider (LHC) and a e+e- Linear Collider (LC). At both machines the standard production mechanisms which rely on the coupling h_fVV (V=W,Z) can be very suppressed at large tan beta. In such cases the complementary channels pp to H^...
[ { "created": "Wed, 17 Dec 2003 06:32:53 GMT", "version": "v1" }, { "created": "Thu, 26 Aug 2004 01:53:01 GMT", "version": "v2" } ]
2008-11-26
[ [ "Akeroyd", "A. G.", "" ], [ "Diaz", "Marco A.", "" ], [ "Pacheco", "Francisco J.", "" ] ]
We consider the phenomenology of a fermiophobic Higgs boson (h_f) at the Large Hadron Collider (LHC) and a e+e- Linear Collider (LC). At both machines the standard production mechanisms which rely on the coupling h_fVV (V=W,Z) can be very suppressed at large tan beta. In such cases the complementary channels pp to H^\p...
1701.04561
Chao-Hsi Chang
Xu-Chang Zheng, Chao-Hsi Chang, Tai-Fu Feng, Zan Pan
The NLO QCD corrections to $B_c$($B_c^*$) production around $Z$ pole at an $e^+e^-$ collider
11 pages, 10 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Production of the $B_c$ and $B_c^*$ mesons at $Z$-factory (an $e^+e^-$ collider running at energies around $Z$ pole) is calculated up-to the next-to-leading order (NLO) QCD corrections. The results show that the dependence of the total cross sections on the renormalization scale $\mu$ is reduced by the corrections, a...
[ { "created": "Tue, 17 Jan 2017 08:20:23 GMT", "version": "v1" }, { "created": "Mon, 13 Mar 2017 04:28:20 GMT", "version": "v2" }, { "created": "Sat, 15 Jul 2017 13:46:32 GMT", "version": "v3" } ]
2017-07-18
[ [ "Zheng", "Xu-Chang", "" ], [ "Chang", "Chao-Hsi", "" ], [ "Feng", "Tai-Fu", "" ], [ "Pan", "Zan", "" ] ]
Production of the $B_c$ and $B_c^*$ mesons at $Z$-factory (an $e^+e^-$ collider running at energies around $Z$ pole) is calculated up-to the next-to-leading order (NLO) QCD corrections. The results show that the dependence of the total cross sections on the renormalization scale $\mu$ is reduced by the corrections, and...
hep-ph/0302188
Heather E. Logan
Tao Han, Heather E. Logan, Bob McElrath, and Lian-Tao Wang
Loop induced decays of the Little Higgs: H --> gg, gamma gamma
16 pages, 7 figures; v2: note added to comment on a related paper, submitted to PLB; v3: mistake corrected in yt, yT and yWL in Eq.4; Figs 3-7, Table 1, and numbers in conclusions updated
Phys.Lett. B563 (2003) 191-202; Erratum-ibid. B603 (2004) 257-259
10.1016/S0370-2693(03)00657-9
MADPH-03-1319
hep-ph
null
We analyze the loop induced decays of the Higgs boson into pairs of gluons and photons in the Littlest Higgs model. We find that the deviation of the partial widths for these decays relative to their Standard Model values scales with 1/f^2, where f ~ TeV is the mass scale of the new heavy particles in the model. For ...
[ { "created": "Thu, 20 Feb 2003 18:02:47 GMT", "version": "v1" }, { "created": "Fri, 7 Mar 2003 23:41:14 GMT", "version": "v2" }, { "created": "Thu, 7 Oct 2004 22:31:02 GMT", "version": "v3" } ]
2010-04-05
[ [ "Han", "Tao", "" ], [ "Logan", "Heather E.", "" ], [ "McElrath", "Bob", "" ], [ "Wang", "Lian-Tao", "" ] ]
We analyze the loop induced decays of the Higgs boson into pairs of gluons and photons in the Littlest Higgs model. We find that the deviation of the partial widths for these decays relative to their Standard Model values scales with 1/f^2, where f ~ TeV is the mass scale of the new heavy particles in the model. For f ...
hep-ph/0507066
J. A. R. Cembranos
J. A. R. Cembranos, A. Dobado and A. L. Maroto
Dark matter clues in the muon anomalous magnetic moment
4 pages, 3 figures, REVTeX 4
Phys.Rev.D73:057303,2006
10.1103/PhysRevD.73.057303
UCI-TR-2005-28
hep-ph astro-ph
null
We study the possibility to explain the non-baryonic dark matter abundance and improve the present fits on the muon anomalous magnetic moment through the same new physics. The only viable way to solve simultaneously both problems which is known to date is by using supersymmetric theories. However in this work we show...
[ { "created": "Wed, 6 Jul 2005 06:22:38 GMT", "version": "v1" } ]
2008-11-26
[ [ "Cembranos", "J. A. R.", "" ], [ "Dobado", "A.", "" ], [ "Maroto", "A. L.", "" ] ]
We study the possibility to explain the non-baryonic dark matter abundance and improve the present fits on the muon anomalous magnetic moment through the same new physics. The only viable way to solve simultaneously both problems which is known to date is by using supersymmetric theories. However in this work we show t...
hep-ph/0302050
Robert L. Thews
R. L. Thews (University of Arizona)
Quarkonium Formation from Uncorrelated Quark-Antiquark Pairs
To be published in "Hard Probes in Heavy Ion Collisions at the LHC, CERN report
null
null
null
hep-ph nucl-ex nucl-th
null
The goal of this section is to assess the possibility that quarkonium production rates may be enhanced in nucleus-nucleus interactions at the LHC relative to that predicted by extrapolation of processes thought to be dominant at lower energy. This enhancement could follow from the effects of incoherent recombination ...
[ { "created": "Fri, 7 Feb 2003 00:16:15 GMT", "version": "v1" } ]
2007-05-23
[ [ "Thews", "R. L.", "", "University of Arizona" ] ]
The goal of this section is to assess the possibility that quarkonium production rates may be enhanced in nucleus-nucleus interactions at the LHC relative to that predicted by extrapolation of processes thought to be dominant at lower energy. This enhancement could follow from the effects of incoherent recombination me...
hep-ph/0605047
Mikhail Shaposhnikov
Mikhail Shaposhnikov
A possible symmetry of the $\nu$MSM
16 pages, extended version, to appear in Nucl. Phys. B
Nucl.Phys.B763:49-59,2007
10.1016/j.nuclphysb.2006.11.003
CERN-PH-TH/2006-079
hep-ph astro-ph hep-th
null
To explain the dark matter and the baryon asymmetry of the Universe, the parameters of the $\nu$MSM (an extension of the Minimal Standard Model by three singlet neutrinos with masses smaller than the electroweak scale) must be fine-tuned: one of the masses should be in the ${\cal O} (10)$ keV region to provide a cand...
[ { "created": "Thu, 4 May 2006 16:32:14 GMT", "version": "v1" }, { "created": "Wed, 8 Nov 2006 09:47:59 GMT", "version": "v2" } ]
2008-11-26
[ [ "Shaposhnikov", "Mikhail", "" ] ]
To explain the dark matter and the baryon asymmetry of the Universe, the parameters of the $\nu$MSM (an extension of the Minimal Standard Model by three singlet neutrinos with masses smaller than the electroweak scale) must be fine-tuned: one of the masses should be in the ${\cal O} (10)$ keV region to provide a candid...
hep-ph/0601240
Artem Lipatov
A.V. Lipatov, N.P. Zotov
Beauty photoproduction at HERA: kt-factorization versus experimental data
29 pages, 15 figures, 2 tables
Phys.Rev.D73:114018,2006
10.1103/PhysRevD.73.114018
null
hep-ph
null
We present calculations of the beauty photoproduction at HERA collider in the framework of the kt-factorization approach. Both direct and resolved photon contributions are taken into account. The unintegrated gluon densities in a proton and in a photon are obtained from the full CCFM, from unified BFKL-DGLAP evolutio...
[ { "created": "Sat, 28 Jan 2006 10:20:47 GMT", "version": "v1" } ]
2008-11-26
[ [ "Lipatov", "A. V.", "" ], [ "Zotov", "N. P.", "" ] ]
We present calculations of the beauty photoproduction at HERA collider in the framework of the kt-factorization approach. Both direct and resolved photon contributions are taken into account. The unintegrated gluon densities in a proton and in a photon are obtained from the full CCFM, from unified BFKL-DGLAP evolution ...
hep-ph/9501243
null
P.Ramond (Inst for Fundamental Theory, U Florida, Gainesville)
Probing for the Roots of the Standard Model
Lecture at the Oskar Klein Centenary Symposium. 13 pages, macros included.
null
null
UFIFT-HEP-95-2
hep-ph
null
The differences between the $N=0$ and $N=1$ standard models are emphasized in formulating their short distance extension. We sketch methods to reproduce many of the small numbers in the model in terms of scale ratios, applying see-saw like ideas to the breaking of chiral symmetries. We sketch how the $N=1$ standard m...
[ { "created": "Mon, 9 Jan 1995 16:46:47 GMT", "version": "v1" } ]
2016-09-01
[ [ "Ramond", "P.", "", "Inst for Fundamental Theory, U Florida, Gainesville" ] ]
The differences between the $N=0$ and $N=1$ standard models are emphasized in formulating their short distance extension. We sketch methods to reproduce many of the small numbers in the model in terms of scale ratios, applying see-saw like ideas to the breaking of chiral symmetries. We sketch how the $N=1$ standard mod...
1211.0371
Biswajit Adhikary
Biswajit Adhikary and Probir Roy
Neutrino Yukawa textures within type-I see-saw
invited review article, to appear in a special issue on neutrinos in the journal Advances in High Energy Physics (AHEP)
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The arbitrariness of Yukawa couplings can be reduced by the imposition of some flavor symmetries and/or by the realization of texture zeros. We review neutrino Yukawa textures with zeros within the framework of the type-I seesaw with three heavy right chiral neutrinos and in the basis where the latter and the charged...
[ { "created": "Fri, 2 Nov 2012 05:39:12 GMT", "version": "v1" } ]
2012-11-05
[ [ "Adhikary", "Biswajit", "" ], [ "Roy", "Probir", "" ] ]
The arbitrariness of Yukawa couplings can be reduced by the imposition of some flavor symmetries and/or by the realization of texture zeros. We review neutrino Yukawa textures with zeros within the framework of the type-I seesaw with three heavy right chiral neutrinos and in the basis where the latter and the charged l...
0912.3997
Kyriakos Tamvakis
J. Rizos and K. Tamvakis
Hierarchical Neutrino Masses and Mixing in Flipped-SU(5)
10 pages
Phys.Lett.B685:67-71,2010
10.1016/j.physletb.2010.01.038
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the problem of neutrino masses and mixing in the framework of flipped SU(5). The right-handed neutrino mass, generated through the operation of a seesaw mechanism by a sector of gauge singlets, leads naturally, at a subsequent level, to the standard seesaw mechanism resulting into three light neutrino sta...
[ { "created": "Sun, 20 Dec 2009 10:28:06 GMT", "version": "v1" } ]
2010-04-30
[ [ "Rizos", "J.", "" ], [ "Tamvakis", "K.", "" ] ]
We consider the problem of neutrino masses and mixing in the framework of flipped SU(5). The right-handed neutrino mass, generated through the operation of a seesaw mechanism by a sector of gauge singlets, leads naturally, at a subsequent level, to the standard seesaw mechanism resulting into three light neutrino state...
1703.10916
Dimitrios Karamitros
Dimitrios Karamitros
A Fermionic bi-Doublet Effective Field Theory for Dark Matter
14 pages. To appear in the Proceedings of Corfu Summer Institute 2016 "School and Workshops on Elementary Particle Physics and Gravity" September 2016 Corfu, Greece
null
null
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study an effective field theory which includes the Standard Model extended by a Dark Sector consisting of two fermionic $SU(2)_{L}$-doublets. A $Z_2$ parity guarantees that, after electroweak symmetry breaking, the lightest neutral particle is stable, acting as a WIMP. The dark sector interacts with the Higgs and ...
[ { "created": "Fri, 31 Mar 2017 14:34:56 GMT", "version": "v1" } ]
2017-04-03
[ [ "Karamitros", "Dimitrios", "" ] ]
We study an effective field theory which includes the Standard Model extended by a Dark Sector consisting of two fermionic $SU(2)_{L}$-doublets. A $Z_2$ parity guarantees that, after electroweak symmetry breaking, the lightest neutral particle is stable, acting as a WIMP. The dark sector interacts with the Higgs and ga...
hep-ph/9902298
D. P. Roy
D.P. Roy
SUSY and SUGRA Signatures at Hadron Colliders
Invited Talk at the 13th Intl. Conf. on Hadron Collider Physics, Mumbai, India 14-20 January 1999, 9 pages, latex, including 5 eps figures
null
null
TIFR/TH/99-05
hep-ph
null
After a brief introduction to SUSY I discuss the missing-p_T signature for superparticles from R-parity conservation and the multilepton signature, which follows from their cascade decay. The GUT and SUGRA constraints on the SUSY mass parameters are discussed along with the resulting SUSY signals at LHC. Finally I co...
[ { "created": "Wed, 10 Feb 1999 12:47:45 GMT", "version": "v1" } ]
2007-05-23
[ [ "Roy", "D. P.", "" ] ]
After a brief introduction to SUSY I discuss the missing-p_T signature for superparticles from R-parity conservation and the multilepton signature, which follows from their cascade decay. The GUT and SUGRA constraints on the SUSY mass parameters are discussed along with the resulting SUSY signals at LHC. Finally I cons...
0805.1603
Rui Santos
Abdesslam Arhrib, Rachid Benbrik, R.B. Guedes and R. Santos
Search for a light fermiophobic Higgs boson produced via gluon fusion at Hadron Colliders
9 pages, 13 figures
Phys.Rev.D78:075002,2008
10.1103/PhysRevD.78.075002
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this study, we propose new Higgs production mechanisms with multi-photon final states in the fermiophobic limit of the Two Higgs Doublet Model. The processes are: gg -> hh, gg -> H h followed by H -> h h and gg -> A h followed by A -> h Z. In the fermiophobic limit, gg -> h h and gg -> A h -> h h Z would give rise...
[ { "created": "Mon, 12 May 2008 10:17:28 GMT", "version": "v1" } ]
2008-11-26
[ [ "Arhrib", "Abdesslam", "" ], [ "Benbrik", "Rachid", "" ], [ "Guedes", "R. B.", "" ], [ "Santos", "R.", "" ] ]
In this study, we propose new Higgs production mechanisms with multi-photon final states in the fermiophobic limit of the Two Higgs Doublet Model. The processes are: gg -> hh, gg -> H h followed by H -> h h and gg -> A h followed by A -> h Z. In the fermiophobic limit, gg -> h h and gg -> A h -> h h Z would give rise t...
1110.6452
Muneyuki Ishida
Vernon Barger and Muneyuki Ishida
Randall-Sundrum Reality at the LHC
14 page including 5 figures
null
10.1016/j.physletb.2012.01.073
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The radion is expected to be the first signal of the Randall-Sundrum (RS) model. We explore the possibility of finding it in the ongoing Higgs searches at the LHC. The little RS model (LRS), which has a fundamental scale at about 1000 TeV, is excluded over wide ranges of the radion mass from the latest $WW$ and gamma...
[ { "created": "Fri, 28 Oct 2011 20:06:07 GMT", "version": "v1" }, { "created": "Wed, 2 Nov 2011 00:07:58 GMT", "version": "v2" }, { "created": "Tue, 6 Mar 2012 19:10:07 GMT", "version": "v3" } ]
2015-06-03
[ [ "Barger", "Vernon", "" ], [ "Ishida", "Muneyuki", "" ] ]
The radion is expected to be the first signal of the Randall-Sundrum (RS) model. We explore the possibility of finding it in the ongoing Higgs searches at the LHC. The little RS model (LRS), which has a fundamental scale at about 1000 TeV, is excluded over wide ranges of the radion mass from the latest $WW$ and gamma g...
hep-ph/9504348
"V. A." Khoze
VALERY A. KHOZE
ON MEASURING THE $\gamma \gamma$ WIDTH OF THE INTERMEDIATE- MASS HIGGS AT A PHOTON LINEAR COLLIDER
7 pages, LATEX file, hard copies of 2 figs. availabl upon request
null
null
Talk at the Photon'95, Sheffield, April 8-15, 1995
hep-ph
null
The identification of the intermediate-mass Higgs process $\gamma \gamma \rightarrow H \rightarrow b\overline{b}$ will be one of the most important goals of a future photon linear collider. Backgrounds from the continuum $\gamma \gamma \rightarrow c\overline{c}, b\overline{b}$ leading-order processes can be suppresse...
[ { "created": "Thu, 20 Apr 1995 14:13:36 GMT", "version": "v1" } ]
2009-09-25
[ [ "KHOZE", "VALERY A.", "" ] ]
The identification of the intermediate-mass Higgs process $\gamma \gamma \rightarrow H \rightarrow b\overline{b}$ will be one of the most important goals of a future photon linear collider. Backgrounds from the continuum $\gamma \gamma \rightarrow c\overline{c}, b\overline{b}$ leading-order processes can be suppressed ...
0905.0633
Joerg Jaeckel
Felix Bruemmer, Joerg Jaeckel and Valentin V. Khoze
Magnetic Mixing -- Electric Minicharges from Magnetic Monopoles
17 pages, 1 figure
JHEP 0906:037,2009
10.1088/1126-6708/2009/06/037
IPPP/09/36; DCPT/09/72
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Many extensions of the Standard Model require the existence of a "hidden" sector. We consider settings where the hidden sector in the infrared contains a U(1) gauge factor with magnetic monopoles, for instance 't Hooft-Polyakov monopoles of an underlying non-abelian gauge group. In the presence of CP violation these ...
[ { "created": "Tue, 5 May 2009 15:53:49 GMT", "version": "v1" } ]
2009-06-23
[ [ "Bruemmer", "Felix", "" ], [ "Jaeckel", "Joerg", "" ], [ "Khoze", "Valentin V.", "" ] ]
Many extensions of the Standard Model require the existence of a "hidden" sector. We consider settings where the hidden sector in the infrared contains a U(1) gauge factor with magnetic monopoles, for instance 't Hooft-Polyakov monopoles of an underlying non-abelian gauge group. In the presence of CP violation these mo...
1701.06932
Abdulkadir Senol
H. Denizli, A. Senol, A. Yilmaz, I. T. Cakir, H. Karadeniz, O. Cakir
Top quark FCNC couplings at future circular hadron electron colliders
11 pages, 4 Figures, 4 Tables, to appear in Phys. Rev. D
Phys. Rev. D 96, 015024 (2017)
10.1103/PhysRevD.96.015024
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A study of single top quark production via flavor changing neutral current interactions at $tq\gamma$ vertices is performed at future circular hadron electron collider. The signal cross sections for the processes $e^{-}p\to e^{-}W^{\pm}q+X$ and $e^{-}p\to e^{-}W^{\pm}bq+X$ in the collision of electron beam with energ...
[ { "created": "Tue, 24 Jan 2017 15:33:32 GMT", "version": "v1" }, { "created": "Wed, 26 Jul 2017 20:07:44 GMT", "version": "v2" } ]
2017-07-28
[ [ "Denizli", "H.", "" ], [ "Senol", "A.", "" ], [ "Yilmaz", "A.", "" ], [ "Cakir", "I. T.", "" ], [ "Karadeniz", "H.", "" ], [ "Cakir", "O.", "" ] ]
A study of single top quark production via flavor changing neutral current interactions at $tq\gamma$ vertices is performed at future circular hadron electron collider. The signal cross sections for the processes $e^{-}p\to e^{-}W^{\pm}q+X$ and $e^{-}p\to e^{-}W^{\pm}bq+X$ in the collision of electron beam with energy ...
hep-ph/9407348
Michael A. Doncheski
Michael A. Doncheski, Stephen Godfrey and K. Andrew Peterson
Probing the Heavy Quark Content of the Photon Using b Tagging at High Energy $e\gamma$ and $e^+e^-$ Colliders
15 pages, LaTeX, 10 postscript files; extensive modifications from previous version
Phys.Rev. D55 (1997) 183-189
10.1103/PhysRevD.55.183
OCIP/C-94-2
hep-ph
null
We suggest a method for probing the quark content of the photon using $b$ tagging at high energy $e^+e^-$ and $e\gamma$ colliders. We find that heavy quark tagging provides a sensitive and effective probe of the quark content of the photon especially in the low $x$-region where the various models differ the most. Thi...
[ { "created": "Thu, 21 Jul 1994 13:26:31 GMT", "version": "v1" }, { "created": "Thu, 3 Oct 1996 23:26:18 GMT", "version": "v2" } ]
2009-10-28
[ [ "Doncheski", "Michael A.", "" ], [ "Godfrey", "Stephen", "" ], [ "Peterson", "K. Andrew", "" ] ]
We suggest a method for probing the quark content of the photon using $b$ tagging at high energy $e^+e^-$ and $e\gamma$ colliders. We find that heavy quark tagging provides a sensitive and effective probe of the quark content of the photon especially in the low $x$-region where the various models differ the most. This ...
hep-ph/9803428
Gudrun Hiller
A. Ali and G. Hiller (DESY, Hamburg)
Perturbative QCD- and Power-Corrected Hadron Spectra and Spectral Moments in the Decay $B \to X_s \ell^+ \ell^-$
44 pages, 15 figure (require epsf.sty);, March 1998; Several typos and composition errors corrected; four references added; no change in formulae or results
Phys.Rev.D58:074001,1998
10.1103/PhysRevD.58.074001
DESY 98-030
hep-ph
null
We compute the leading order (in $\alpha_s$) perturbative QCD and power ($1/m_b^2)$ corrections to the hadronic invariant mass and hadron energy spectra in the decay $B \to X_s \ell^+ \ell^-$ in standard model. This is done both by using the heavy quark expansion technique (HQET) and a perturbative-QCD improved Fermi...
[ { "created": "Mon, 23 Mar 1998 19:24:09 GMT", "version": "v1" }, { "created": "Fri, 27 Mar 1998 10:39:14 GMT", "version": "v2" } ]
2011-01-27
[ [ "Ali", "A.", "", "DESY, Hamburg" ], [ "Hiller", "G.", "", "DESY, Hamburg" ] ]
We compute the leading order (in $\alpha_s$) perturbative QCD and power ($1/m_b^2)$ corrections to the hadronic invariant mass and hadron energy spectra in the decay $B \to X_s \ell^+ \ell^-$ in standard model. This is done both by using the heavy quark expansion technique (HQET) and a perturbative-QCD improved Fermi m...
1912.04163
Essodjolo Kpatcha
Essodjolo Kpatcha, Inaki Lara, Daniel E. Lopez-Fogliani, Carlos Munoz, Natsumi Nagata
Explaining muon $g-2$ data in the $\mu\nu$SSM
Version published in EPJC. A compiling issue has been resolved in Fig. 11. 39 pages, 14 figures, 3 tables. Analyses of the scalar sector of the {\mu}{\nu}SSM in arXiv:1907.02092 and arXiv:1910.08062 are used
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze the anomalous magnetic moment of the muon $g-2$ in the $\mu\nu$SSM. This $R$-parity violating model solves the $\mu$ problem reproducing simultaneously neutrino data, only with the addition of right-handed neutrinos. In the framework of the $\mu\nu$SSM, light left muon-sneutrino and wino masses can be natu...
[ { "created": "Fri, 6 Dec 2019 18:57:45 GMT", "version": "v1" }, { "created": "Wed, 7 Oct 2020 14:07:08 GMT", "version": "v2" }, { "created": "Wed, 13 Jan 2021 14:19:36 GMT", "version": "v3" } ]
2021-01-14
[ [ "Kpatcha", "Essodjolo", "" ], [ "Lara", "Inaki", "" ], [ "Lopez-Fogliani", "Daniel E.", "" ], [ "Munoz", "Carlos", "" ], [ "Nagata", "Natsumi", "" ] ]
We analyze the anomalous magnetic moment of the muon $g-2$ in the $\mu\nu$SSM. This $R$-parity violating model solves the $\mu$ problem reproducing simultaneously neutrino data, only with the addition of right-handed neutrinos. In the framework of the $\mu\nu$SSM, light left muon-sneutrino and wino masses can be natura...
1602.00937
Ya-ping Xie
Ya-ping Xie and Xurong Chen
The coherent cross section of vector mesons in ultraperipheral PbPb collisions at the LHC
null
null
10.1140/epjc/s10052-016-4170-1
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
The coherent cross section of $J/\psi$, $\rho$, $\phi$ are computed in dipole model in the ultraperipheral PbPb collisions, the IP-Sat and IIM model are applied in the calculation of the differential cross section of the dipole scattering off the nucleon, three kinds of forward vector meson wave functions are used in...
[ { "created": "Tue, 2 Feb 2016 14:22:16 GMT", "version": "v1" }, { "created": "Wed, 16 Mar 2016 13:04:09 GMT", "version": "v2" } ]
2021-01-13
[ [ "Xie", "Ya-ping", "" ], [ "Chen", "Xurong", "" ] ]
The coherent cross section of $J/\psi$, $\rho$, $\phi$ are computed in dipole model in the ultraperipheral PbPb collisions, the IP-Sat and IIM model are applied in the calculation of the differential cross section of the dipole scattering off the nucleon, three kinds of forward vector meson wave functions are used in t...
hep-ph/0205249
Anna M. Stasto
A.M. Stasto
Saturation at low x and nonlinear evolution
12 pages, 5 figures, talk given at the Epiphany Conference, Cracow, 3-6 January 2002
Acta Phys.Polon. B33 (2002) 1571-1582
null
null
hep-ph
null
In this talk the results of the analytical and numerical analysis of the nonlinear Balitsky-Kovchegov equation are presented. The characteristic BFKL diffusion into infrared regime is suppressed by the generation of the saturation scale. We identify the scaling and linear regimes for the solution. We also study the i...
[ { "created": "Wed, 22 May 2002 14:22:52 GMT", "version": "v1" } ]
2007-05-23
[ [ "Stasto", "A. M.", "" ] ]
In this talk the results of the analytical and numerical analysis of the nonlinear Balitsky-Kovchegov equation are presented. The characteristic BFKL diffusion into infrared regime is suppressed by the generation of the saturation scale. We identify the scaling and linear regimes for the solution. We also study the imp...
2003.07366
Marco Chianese Dr
Marco Chianese, Bowen Fu, Stephen F. King
Impact of Higgs portal on gravity-mediated production of superheavy dark matter
14 pages, 5 figures. Updated to match version published in JCAP
JCAP06(2020)019
10.1088/1475-7516/2020/06/019
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the so-called Planckian Interacting Dark Matter (PIDM) scenario, superheavy dark matter particles are produced after inflation by gravity-mediated interactions through the freeze-in mechanism. In the minimal PIDM model, the absence of any additional direct coupling with Standard Model particles is assumed. However...
[ { "created": "Mon, 16 Mar 2020 18:00:01 GMT", "version": "v1" }, { "created": "Tue, 9 Jun 2020 08:29:54 GMT", "version": "v2" } ]
2020-06-11
[ [ "Chianese", "Marco", "" ], [ "Fu", "Bowen", "" ], [ "King", "Stephen F.", "" ] ]
In the so-called Planckian Interacting Dark Matter (PIDM) scenario, superheavy dark matter particles are produced after inflation by gravity-mediated interactions through the freeze-in mechanism. In the minimal PIDM model, the absence of any additional direct coupling with Standard Model particles is assumed. However, ...
hep-ph/9707369
Gabriel Lopez
M. Beuthe, G. Lopez Castro and J. Pestieau
Field theory approach to K0-K0bar and B0-B0bar systems
Latex, 19 pages
Int.J.Mod.Phys. A13 (1998) 3587-3600
10.1142/S0217751X98001682
UCL-IPT-97-09
hep-ph
null
Quantum field theory provides a consistent framework to deal with unstable particles. We present here an approach based on field theory to describe the production and decay of unstable $K^0-\bar{K^0}$ and $B^0-\bar{B^0}$ mixed systems. The formalism is applied to compute the time evolution amplitudes of $K^0$ and $\b...
[ { "created": "Thu, 17 Jul 1997 10:15:10 GMT", "version": "v1" } ]
2009-10-30
[ [ "Beuthe", "M.", "" ], [ "Castro", "G. Lopez", "" ], [ "Pestieau", "J.", "" ] ]
Quantum field theory provides a consistent framework to deal with unstable particles. We present here an approach based on field theory to describe the production and decay of unstable $K^0-\bar{K^0}$ and $B^0-\bar{B^0}$ mixed systems. The formalism is applied to compute the time evolution amplitudes of $K^0$ and $\bar...
hep-ph/9601286
null
Maria J.Herrero
Introduction To The Symmetry Breaking Sector
45 pages, Latex, figures not included . Hard copys of figures available on request
null
null
FTUAM/Jan/1996/1
hep-ph hep-ex
null
The basic ingredients of the Spontaneous Symmetry Breaking Phenomenon and of the Higgs Mechanism are reviewed in these lectures of pedagogical character. Some relevant topics related with the breaking $\gs \rightarrow U(1)_{\rm em}$ are selected and discussed here. A brief survey of the experimental Higgs particle se...
[ { "created": "Wed, 17 Jan 1996 19:00:47 GMT", "version": "v1" } ]
2009-09-25
[ [ "Herrero", "Maria J.", "" ] ]
The basic ingredients of the Spontaneous Symmetry Breaking Phenomenon and of the Higgs Mechanism are reviewed in these lectures of pedagogical character. Some relevant topics related with the breaking $\gs \rightarrow U(1)_{\rm em}$ are selected and discussed here. A brief survey of the experimental Higgs particle sear...
hep-ph/0702184
Alejandro Ibarra
Wilfried Buchmuller, Laura Covi, Koichi Hamaguchi, Alejandro Ibarra, Tsutomu Yanagida
Gravitino Dark Matter in R-Parity Breaking Vacua
18 pages. Typos corrected
JHEP 0703:037,2007
10.1088/1126-6708/2007/03/037
DESY 06-244, UT-07-03
hep-ph astro-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show that in the case of small R-parity and lepton number breaking couplings, primordial nucleosynthesis, thermal leptogenesis and gravitino dark matter are naturally consistent for gravitino masses m_{3/2} \gsim 5 GeV. We present a model where R-parity breaking is tied to B-L breaking, which predicts the needed s...
[ { "created": "Mon, 19 Feb 2007 14:55:59 GMT", "version": "v1" }, { "created": "Mon, 27 Oct 2008 07:34:11 GMT", "version": "v2" } ]
2010-04-06
[ [ "Buchmuller", "Wilfried", "" ], [ "Covi", "Laura", "" ], [ "Hamaguchi", "Koichi", "" ], [ "Ibarra", "Alejandro", "" ], [ "Yanagida", "Tsutomu", "" ] ]
We show that in the case of small R-parity and lepton number breaking couplings, primordial nucleosynthesis, thermal leptogenesis and gravitino dark matter are naturally consistent for gravitino masses m_{3/2} \gsim 5 GeV. We present a model where R-parity breaking is tied to B-L breaking, which predicts the needed sma...
1602.06112
Antonio Rodr\'iguez S\'anchez
A. Rodr\'iguez-S\'anchez, M. Gonz\'alez-Alonso, A. Pich
Updated determination of chiral couplings and vacuum condensates from hadronic tau decay data
25 pages, 8 figures, Preprint numbers: IFIC/16-08 FTUV/16-0219
Phys. Rev. D 94, 014017 (2016)
10.1103/PhysRevD.94.014017
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze the lowest spectral moments of the left-right two-point correlation function, using all known short-distance constraints and the recently updated ALEPH V-A spectral function from tau decays. This information is used to determine the low-energy couplings L10 and C87 of chiral perturbation theory and the low...
[ { "created": "Fri, 19 Feb 2016 11:14:54 GMT", "version": "v1" } ]
2016-07-20
[ [ "Rodríguez-Sánchez", "A.", "" ], [ "González-Alonso", "M.", "" ], [ "Pich", "A.", "" ] ]
We analyze the lowest spectral moments of the left-right two-point correlation function, using all known short-distance constraints and the recently updated ALEPH V-A spectral function from tau decays. This information is used to determine the low-energy couplings L10 and C87 of chiral perturbation theory and the lowes...
hep-ph/9607288
Ezio Maina
A. Ballestrero, E. Maina and M. Pizzio (U. of Torino and INFN-Torino)
$b \bar b W^+ W^-$ production at hadron colliders. Top signal and irreducible backgrounds
13 LaTex pages, 2 figs using feynman.sty, 5 ps figures
Phys.Lett.B387:411-418,1996
10.1016/0370-2693(96)01048-9
DFTT 32/96
hep-ph
null
We compute complete tree level matrix elements for $gg , q \bar q \rightarrow b \bar b W^+W^-$. We analyze the irreducible backgrounds to top signal at the Tevatron and at the LHC. Their contribution to the total cross section is about $5 \%$ at the LHC, due to single resonant channels. Several distributions with con...
[ { "created": "Thu, 11 Jul 1996 08:20:34 GMT", "version": "v1" } ]
2008-12-22
[ [ "Ballestrero", "A.", "", "U. of Torino and INFN-Torino" ], [ "Maina", "E.", "", "U. of Torino and INFN-Torino" ], [ "Pizzio", "M.", "", "U. of Torino and INFN-Torino" ] ]
We compute complete tree level matrix elements for $gg , q \bar q \rightarrow b \bar b W^+W^-$. We analyze the irreducible backgrounds to top signal at the Tevatron and at the LHC. Their contribution to the total cross section is about $5 \%$ at the LHC, due to single resonant channels. Several distributions with contr...
1507.05543
Fabio Siringo
Fabio Siringo
Perturbation theory of non-perturbative QCD
null
null
null
null
hep-ph hep-lat hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Perturbation theory is shown to be working in the IR limit of pure SU(3) Yang-Mills theory in Landau gauge by an unconventional setting of the perturbative expansion. A dynamical mass is predicted for the gluon and the lattice data are reproduced fairly well by a second-order expansion, without any free parameter. Th...
[ { "created": "Mon, 20 Jul 2015 15:52:54 GMT", "version": "v1" } ]
2015-07-21
[ [ "Siringo", "Fabio", "" ] ]
Perturbation theory is shown to be working in the IR limit of pure SU(3) Yang-Mills theory in Landau gauge by an unconventional setting of the perturbative expansion. A dynamical mass is predicted for the gluon and the lattice data are reproduced fairly well by a second-order expansion, without any free parameter. The ...
1112.5122
Mario da Silva
M. L. L. da Silva, M. V. T. Machado
Investigating photoproduction of scalar mesons at medium energies
4 pages, 3 figures, 2 tables. Version to be published in Physical Review C
null
10.1103/PhysRevC.86.015209
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this letter we study the photoproduction of scalar mesons in the intermediate energies considering distinct mixing scenarios in the description of meson physical states. The differential and integrated total cross section are computed for the cases of the mesons a_0(980), f_0(1500) and f_0(1710) focusing the GlueX...
[ { "created": "Wed, 21 Dec 2011 18:25:04 GMT", "version": "v1" }, { "created": "Thu, 19 Jul 2012 17:40:08 GMT", "version": "v2" } ]
2013-05-30
[ [ "da Silva", "M. L. L.", "" ], [ "Machado", "M. V. T.", "" ] ]
In this letter we study the photoproduction of scalar mesons in the intermediate energies considering distinct mixing scenarios in the description of meson physical states. The differential and integrated total cross section are computed for the cases of the mesons a_0(980), f_0(1500) and f_0(1710) focusing the GlueX e...
0706.3135
Helen Matskevich
S.M. Gerasyuta and E.E. Matskevich
Excited $(70,L^+)$ baryon resonances in the relativistic quark model
latex, 23 pages, 3 figures
Phys.Rev.D76:116004,2007
10.1103/PhysRevD.76.116004
null
hep-ph
null
The masses of positive parity $(70,0^+)$ and $(70,2^+)$ nonstrange and strange baryons are calculated in the relativistic quark model. The relativistic three-quark equations of the $(70,L^+)$ multiplets are found in the framework of the dispersion relation technique. The approximate solutions of these equations using...
[ { "created": "Thu, 21 Jun 2007 12:19:11 GMT", "version": "v1" } ]
2008-11-26
[ [ "Gerasyuta", "S. M.", "" ], [ "Matskevich", "E. E.", "" ] ]
The masses of positive parity $(70,0^+)$ and $(70,2^+)$ nonstrange and strange baryons are calculated in the relativistic quark model. The relativistic three-quark equations of the $(70,L^+)$ multiplets are found in the framework of the dispersion relation technique. The approximate solutions of these equations using t...
2402.19417
Yu Hamada
Minoru Eto, Yu Hamada, Ryusuke Jinno, Muneto Nitta, and Masatoshi Yamada
Neutrino zeromodes on electroweak strings in light of topological insulators
43 pages, 8 figures; v2: typos corrected, refs added, and some minor changes
JHEP 06 (2024) 062
10.1007/JHEP06(2024)062
KEK-TH-2592, DESY-24-003, RESCEU-2/24, YGHP-24-01
hep-ph cond-mat.mes-hall hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We examine neutrino zeromode solutions on the electroweak $Z$-string and their effect on the stability of the string in the standard model and its extensions. We propose using topological invariants constructed from the momentum (and real) space topology of Green's functions, often used for investigating edge modes i...
[ { "created": "Thu, 29 Feb 2024 18:15:16 GMT", "version": "v1" }, { "created": "Fri, 7 Jun 2024 11:23:57 GMT", "version": "v2" } ]
2024-07-19
[ [ "Eto", "Minoru", "" ], [ "Hamada", "Yu", "" ], [ "Jinno", "Ryusuke", "" ], [ "Nitta", "Muneto", "" ], [ "Yamada", "Masatoshi", "" ] ]
We examine neutrino zeromode solutions on the electroweak $Z$-string and their effect on the stability of the string in the standard model and its extensions. We propose using topological invariants constructed from the momentum (and real) space topology of Green's functions, often used for investigating edge modes in ...
0805.1752
Ted Rogers
J. C. Collins and T. C. Rogers
The Gluon Distribution Function and Factorization in Feynman Gauge
15 pages, 31 figures
Phys.Rev.D78:054012,2008
10.1103/PhysRevD.78.054012
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A complication in proving factorization theorems in Feynman gauge is that individual graphs give a super-leading power of the hard scale when all the gluons inducing the hard scattering are longitudinally polarized. With the aid of an example in gluon-mediated deep inelastic scattering, we show that, although the sup...
[ { "created": "Mon, 12 May 2008 21:51:49 GMT", "version": "v1" }, { "created": "Wed, 3 Sep 2008 12:21:09 GMT", "version": "v2" } ]
2009-11-13
[ [ "Collins", "J. C.", "" ], [ "Rogers", "T. C.", "" ] ]
A complication in proving factorization theorems in Feynman gauge is that individual graphs give a super-leading power of the hard scale when all the gluons inducing the hard scattering are longitudinally polarized. With the aid of an example in gluon-mediated deep inelastic scattering, we show that, although the super...
hep-ph/9711408
Michael Spira
Michael Spira
Squark and Gluino Production at Hadron Colliders
13 pages, latex, 9 figures, Contribution to the proceedings of the International Workshop on Quantum Effects in the MSSM, 9--13 September 1997, Barcelona, Spain
null
null
CERN-TH/97-325
hep-ph
null
The theoretical status of squark and gluino production at present and future hadron colliders is reviewed. I shall concentrate on the evaluation of SUSY-QCD corrections to the production cross sections and their phenomenological implications.
[ { "created": "Thu, 20 Nov 1997 18:01:21 GMT", "version": "v1" } ]
2007-05-23
[ [ "Spira", "Michael", "" ] ]
The theoretical status of squark and gluino production at present and future hadron colliders is reviewed. I shall concentrate on the evaluation of SUSY-QCD corrections to the production cross sections and their phenomenological implications.
2012.01214
Emidio Gabrielli
Marco Fabbrichesi and Emidio Gabrielli
Searching for the dark sector in two-body anti-muon decay with the polarization of monochromatic positrons
7 pages, 4 figures. Same as published version, new results included, a few typos corrected
Phys. Rev. D 104, 015039 (2021)
10.1103/PhysRevD.104.015039
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The $\mu^+ \to e^+ X$ decay, where $X$ is a dark sector boson, provides one of the strongest available bounds on the scale of dark sector interactions. The $X$ boson can be an axion or a dark photon. We show that the concurrent determination of the anti-muon and positron polarizations makes possible to distinguish wi...
[ { "created": "Wed, 2 Dec 2020 13:55:34 GMT", "version": "v1" }, { "created": "Wed, 22 Sep 2021 18:26:27 GMT", "version": "v2" } ]
2021-09-24
[ [ "Fabbrichesi", "Marco", "" ], [ "Gabrielli", "Emidio", "" ] ]
The $\mu^+ \to e^+ X$ decay, where $X$ is a dark sector boson, provides one of the strongest available bounds on the scale of dark sector interactions. The $X$ boson can be an axion or a dark photon. We show that the concurrent determination of the anti-muon and positron polarizations makes possible to distinguish with...
1005.3457
Peter Zeiler Skands
Peter Zeiler Skands
Tuning Monte Carlo Generators: The Perugia Tunes
46 pages
Phys.Rev.D82:074018,2010
10.1103/PhysRevD.82.074018
MCnet/10/08, CERN-PH-TH/2010-113
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present 9 new tunes of the pT-ordered shower and underlying-event model in PYTHIA 6.4. These "Perugia" tunes update and supersede the older "S0" family. The data sets used to constrain the models include hadronic Z0 decays at LEP, Tevatron minimum-bias data at 630, 1800, and 1960 GeV, Tevatron Drell-Yan data at 18...
[ { "created": "Wed, 19 May 2010 14:41:34 GMT", "version": "v1" }, { "created": "Wed, 1 Sep 2010 13:38:27 GMT", "version": "v2" }, { "created": "Wed, 12 Jan 2011 11:07:28 GMT", "version": "v3" }, { "created": "Thu, 5 May 2011 07:23:25 GMT", "version": "v4" }, { "cre...
2015-03-17
[ [ "Skands", "Peter Zeiler", "" ] ]
We present 9 new tunes of the pT-ordered shower and underlying-event model in PYTHIA 6.4. These "Perugia" tunes update and supersede the older "S0" family. The data sets used to constrain the models include hadronic Z0 decays at LEP, Tevatron minimum-bias data at 630, 1800, and 1960 GeV, Tevatron Drell-Yan data at 1800...
1805.04415
Heerak Banerjee
Heerak Banerjee, Pritibhajan Byakti and Sourov Roy
Supersymmetric gauged U(1)$_{L_{\mu}-L_{\tau}}$ model for neutrinos and the muon $(g-2)$ anomaly
v2: 25 pages, 9 figures. Discussion on charged lepton-flavor-violating processes $l_j\rightarrow l_i\gamma$ added in the text. Appendix C added on the same. References added. Published Version
Phys. Rev. D 98, 075022 (2018)
10.1103/PhysRevD.98.075022
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The gauged $U(1)_{L_{\mu}-L_{\tau}}$ model can provide for additional contributions to the muon anomalous magnetic moment by means of a loop involving the $Z^{\prime}$ gauge boson. However, the parameter space of such models is severely constrained if one combines the latest muon $(g-2)$ data with various neutrino ex...
[ { "created": "Fri, 11 May 2018 14:21:51 GMT", "version": "v1" }, { "created": "Mon, 5 Nov 2018 13:51:23 GMT", "version": "v2" } ]
2018-11-06
[ [ "Banerjee", "Heerak", "" ], [ "Byakti", "Pritibhajan", "" ], [ "Roy", "Sourov", "" ] ]
The gauged $U(1)_{L_{\mu}-L_{\tau}}$ model can provide for additional contributions to the muon anomalous magnetic moment by means of a loop involving the $Z^{\prime}$ gauge boson. However, the parameter space of such models is severely constrained if one combines the latest muon $(g-2)$ data with various neutrino expe...
hep-ph/9905428
Paul Langacker
Paul Langacker
Theoretical Summary, Electroweak Physics
Talk presented at the 17^{th} International Workshop on Weak Interactions and Neutrinos (WIN 99), Cape Town, South Africa, January 24-30, 1999. 8 pages
null
null
null
hep-ph
null
Aspects of theoretical electroweak physics are summarized, including the status of electroweak radiative corrections, the hadronic contribution to the running of alpha, global fits to precision data and their implication for testing the standard model and constraining new physics, and electroweak baryogenesis.
[ { "created": "Thu, 20 May 1999 21:53:56 GMT", "version": "v1" } ]
2007-05-23
[ [ "Langacker", "Paul", "" ] ]
Aspects of theoretical electroweak physics are summarized, including the status of electroweak radiative corrections, the hadronic contribution to the running of alpha, global fits to precision data and their implication for testing the standard model and constraining new physics, and electroweak baryogenesis.
hep-ph/0402167
Igor O. Cherednikov
Igor O. Cherednikov
High energy behavior of quark elastic form factors within the Wilson integral approach: perturbative and nonperturbative contributions
Talk at the XVII International Workshop QFTHEP-2003, Samara-Saratov, Russia, 4-11 Sept 2003; to be published in the Proceedings. 4 pp., REVTeX
null
null
null
hep-ph
null
The Wilson contour integral approach is applied to resum the soft gluon radiative correctins to the quark form factors in the Sudakov regime. The one-loop order results for the quark-photon (color singlet form factor) and quark-gluon (color non-singlet form factor) vertices are presented. The explicit expressions for...
[ { "created": "Tue, 17 Feb 2004 10:48:45 GMT", "version": "v1" } ]
2007-05-23
[ [ "Cherednikov", "Igor O.", "" ] ]
The Wilson contour integral approach is applied to resum the soft gluon radiative correctins to the quark form factors in the Sudakov regime. The one-loop order results for the quark-photon (color singlet form factor) and quark-gluon (color non-singlet form factor) vertices are presented. The explicit expressions for t...
1007.2923
Anindya Datta
Debajyoti Choudhury, Anindya Datta, Anirban Kundu
Mutual consistency of the MINOS and MiniBooNE Antineutrino Results and Possible CPT Violation
7 pages, 3 fugures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Discussing the recent MINOS data on muon anti-neutrino disappearance and the MiniBooNE data on muon anti-neutrino to electron anti-neutrino oscillation, we show that the while the respective best fits are inconsistent with each other, significant overlap of allowed regions does exist. Assuming only three neutrino spe...
[ { "created": "Sat, 17 Jul 2010 12:20:23 GMT", "version": "v1" } ]
2010-07-20
[ [ "Choudhury", "Debajyoti", "" ], [ "Datta", "Anindya", "" ], [ "Kundu", "Anirban", "" ] ]
Discussing the recent MINOS data on muon anti-neutrino disappearance and the MiniBooNE data on muon anti-neutrino to electron anti-neutrino oscillation, we show that the while the respective best fits are inconsistent with each other, significant overlap of allowed regions does exist. Assuming only three neutrino speci...
hep-ph/9902375
Gregory Korchemsky
V.M. Braun, S.E. Derkachov, G.P. Korchemsky and A.N. Manashov
Baryon Distribution Amplitudes in QCD
75 pages, LaTeX style, 18 figures embedded with epsf.sty
Nucl.Phys. B553 (1999) 355-426
10.1016/S0550-3213(99)00265-5
LPT-Orsay-98-83, NORDITA-99-11-HE, SPbU-IP-99-04
hep-ph nlin.SI solv-int
null
We develop a new theoretical framework for the description of leading twist light-cone baryon distribution amplitudes which is based on integrability of the helicity $\lambda=3/2$ evolution equation to leading logarithmic accuracy. A physical interpretation is that one can identify a new `hidden' quantum number which...
[ { "created": "Wed, 17 Feb 1999 14:31:27 GMT", "version": "v1" } ]
2009-10-31
[ [ "Braun", "V. M.", "" ], [ "Derkachov", "S. E.", "" ], [ "Korchemsky", "G. P.", "" ], [ "Manashov", "A. N.", "" ] ]
We develop a new theoretical framework for the description of leading twist light-cone baryon distribution amplitudes which is based on integrability of the helicity $\lambda=3/2$ evolution equation to leading logarithmic accuracy. A physical interpretation is that one can identify a new `hidden' quantum number which d...
1605.04474
Fred Jegerlehner
M. Benayoun, P. David, L. DelBuono, F. Jegerlehner
A BHLS model based moment analysis of muon g-2, and its use for lattice QCD evaluations of $a_\mu^{\rm had}$
45 pqges, 15 figures
null
null
LPNHE/2016-01, DESY 16-081
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present an up-to-date analysis of muon $g-2$ evaluations in terms of Mellin-Barnes moments as they might be useful for lattice QCD calculations of $a_\mu$. The moments up to 4th order are evaluated directly in terms of $e^+e^-$--annihilation data and improved within the Hidden Local Symmetry (HLS) Model, supplied ...
[ { "created": "Sat, 14 May 2016 22:00:13 GMT", "version": "v1" } ]
2016-05-20
[ [ "Benayoun", "M.", "" ], [ "David", "P.", "" ], [ "DelBuono", "L.", "" ], [ "Jegerlehner", "F.", "" ] ]
We present an up-to-date analysis of muon $g-2$ evaluations in terms of Mellin-Barnes moments as they might be useful for lattice QCD calculations of $a_\mu$. The moments up to 4th order are evaluated directly in terms of $e^+e^-$--annihilation data and improved within the Hidden Local Symmetry (HLS) Model, supplied wi...
1004.3266
Wayne W. Repko
Duane A. Dicus, Shao-Feng Ge and Wayne W. Repko
Neutrino mixing with broken $S_3$ symmetry
Final version. Published in Phys. Rev. D 82, 033005 (2010)
Phys.Rev.D82:033005,2010
10.1103/PhysRevD.82.033005
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore the consequences of assuming that the neutrino mass matrix is a linear combination of the matrices of a three dimensional representation of the group $S_3$ and that it has one zero mass eigenvalue. When implemented, these two assumptions allow us to express the transformation matrix relating the mass eigen...
[ { "created": "Mon, 19 Apr 2010 18:04:57 GMT", "version": "v1" }, { "created": "Wed, 11 Aug 2010 17:56:01 GMT", "version": "v2" } ]
2014-11-20
[ [ "Dicus", "Duane A.", "" ], [ "Ge", "Shao-Feng", "" ], [ "Repko", "Wayne W.", "" ] ]
We explore the consequences of assuming that the neutrino mass matrix is a linear combination of the matrices of a three dimensional representation of the group $S_3$ and that it has one zero mass eigenvalue. When implemented, these two assumptions allow us to express the transformation matrix relating the mass eigenst...
1810.02973
Dorota Strozik-Kotlorz
D. Kotlorz and S. V. Mikhailov
Optimized determination of the polarized Bjorken sum rule in pQCD
14 pages, 3 figures
Phys. Rev. D 100, 056007 (2019)
10.1103/PhysRevD.100.056007
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present the method of numerical optimization for the perturbative series using the renormalization group in quantum chromodynamics. We apply our approach to the perturbation series in $\alpha_s$ for the coefficient function $C_\text{Bjp}(\alpha_s)$ of the Bjorken sum rule for the polarized deep inelastic lepton-ha...
[ { "created": "Sat, 6 Oct 2018 10:14:11 GMT", "version": "v1" }, { "created": "Mon, 16 Sep 2019 18:10:06 GMT", "version": "v2" } ]
2019-09-19
[ [ "Kotlorz", "D.", "" ], [ "Mikhailov", "S. V.", "" ] ]
We present the method of numerical optimization for the perturbative series using the renormalization group in quantum chromodynamics. We apply our approach to the perturbation series in $\alpha_s$ for the coefficient function $C_\text{Bjp}(\alpha_s)$ of the Bjorken sum rule for the polarized deep inelastic lepton-hadr...
2002.12245
Liliana Apolin\'ario
Liliana Apolin\'ario
Road map to extracting medium properties: an overview
[v1:] 8 pages, 5 figures, Quark Matter 2019 Proceedings; [v2:] Reference added; Typos corrected
null
10.1016/j.nuclphysa.2020.121983
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this manuscript, it is presented an overview of the Quark-Gluon Plasma properties measured, so far, using hard probes. We will focus on both quantitative and qualitative properties that have been (or are about to be) measured, making a link between the theoretical description and experimental results. Throughout t...
[ { "created": "Thu, 27 Feb 2020 16:43:10 GMT", "version": "v1" }, { "created": "Wed, 8 Jul 2020 16:08:54 GMT", "version": "v2" } ]
2021-02-03
[ [ "Apolinário", "Liliana", "" ] ]
In this manuscript, it is presented an overview of the Quark-Gluon Plasma properties measured, so far, using hard probes. We will focus on both quantitative and qualitative properties that have been (or are about to be) measured, making a link between the theoretical description and experimental results. Throughout the...
1808.04982
Eugene Levin
E. Gotsman (Tel Aviv U.) and E. Levin (Tel Aviv U./UTFSM)
Energy evolution and the Bose-Einstein enhancement for double parton densities
19pp. 7 figures in pdf files
Phys. Rev. D 99, 054015 (2019)
10.1103/PhysRevD.99.054015
TAUP 3032/18
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we found that the Bose-Einstein enhancement generates the strong correlations, which increase with energy in the BFKL evolution. This increase leads to the double parton densities ( $\Phi$), that are much larger than the product of the single parton densities ($\phi$). However, numerically, it turns out...
[ { "created": "Wed, 15 Aug 2018 06:41:32 GMT", "version": "v1" }, { "created": "Sun, 19 Aug 2018 07:19:09 GMT", "version": "v2" }, { "created": "Tue, 12 Mar 2019 10:10:22 GMT", "version": "v3" } ]
2019-03-27
[ [ "Gotsman", "E.", "", "Tel Aviv U." ], [ "Levin", "E.", "", "Tel Aviv U./UTFSM" ] ]
In this paper we found that the Bose-Einstein enhancement generates the strong correlations, which increase with energy in the BFKL evolution. This increase leads to the double parton densities ( $\Phi$), that are much larger than the product of the single parton densities ($\phi$). However, numerically, it turns out t...
hep-ph/0405231
Steven Gubser
Steven S. Gubser and Justin Khoury
Scalar self-interactions loosen constraints from fifth force searches
19 pages, 6 figures. v2: Revised figures and added discussion on Colorado and Stanford experiments
Phys.Rev. D70 (2004) 104001
10.1103/PhysRevD.70.104001
PUPT-2119
hep-ph astro-ph hep-th
null
The mass of a scalar field mediating a fifth force is tightly constrained by experiments. We show, however, that adding a quartic self-interaction for such a scalar makes most tests much less constraining: the non-linear equation of motion masks the coupling of the scalar to matter through the chameleon mechanism. We...
[ { "created": "Mon, 24 May 2004 14:58:30 GMT", "version": "v1" }, { "created": "Tue, 10 Aug 2004 16:29:22 GMT", "version": "v2" } ]
2009-11-10
[ [ "Gubser", "Steven S.", "" ], [ "Khoury", "Justin", "" ] ]
The mass of a scalar field mediating a fifth force is tightly constrained by experiments. We show, however, that adding a quartic self-interaction for such a scalar makes most tests much less constraining: the non-linear equation of motion masks the coupling of the scalar to matter through the chameleon mechanism. We d...
hep-ph/9707426
Michael Rueter
Michael Rueter, H.G. Dosch (IHEP, Univ. Heidelberg)
Diffractive color-dipole nucleon scattering
7 pages, 5 eps-figures, uses epsf
Phys.Rev.D57:4097-4100,1998
10.1103/PhysRevD.57.4097
HD-THEP-97-34
hep-ph
null
We determine the diffractive scattering amplitude of a color-dipole on a nucleon using a non-perturbative model of QCD which contains only parameters taken from low-energy physics. This allows to relate specific features of the confinement mechanisms with diffractive electro-production processes and structure functio...
[ { "created": "Tue, 22 Jul 1997 15:04:29 GMT", "version": "v1" } ]
2008-11-26
[ [ "Rueter", "Michael", "", "IHEP, Univ. Heidelberg" ], [ "Dosch", "H. G.", "", "IHEP, Univ. Heidelberg" ] ]
We determine the diffractive scattering amplitude of a color-dipole on a nucleon using a non-perturbative model of QCD which contains only parameters taken from low-energy physics. This allows to relate specific features of the confinement mechanisms with diffractive electro-production processes and structure functions...
2211.06847
Tong Li
Tong Li, Rui-Jia Zhang, Chang-Jie Dai
Solutions to axion electromagnetodynamics and new search strategies of sub-$\mu$eV axion
18 pages, 5 figures. Version accepted for publication in JHEP
null
10.1007/JHEP03(2023)088
null
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
The Witten effect implies the electromagnetic interactions between axions and magnetic monopoles. Based on the quantum electromagnetodynamics, a generic low-energy axion-photon effective field theory was built by introducing two four-potentials ($A^\mu$ and $B^\mu$) to describe a photon. More anomalous axion-photon i...
[ { "created": "Sun, 13 Nov 2022 08:31:26 GMT", "version": "v1" }, { "created": "Wed, 1 Mar 2023 13:56:50 GMT", "version": "v2" } ]
2023-04-05
[ [ "Li", "Tong", "" ], [ "Zhang", "Rui-Jia", "" ], [ "Dai", "Chang-Jie", "" ] ]
The Witten effect implies the electromagnetic interactions between axions and magnetic monopoles. Based on the quantum electromagnetodynamics, a generic low-energy axion-photon effective field theory was built by introducing two four-potentials ($A^\mu$ and $B^\mu$) to describe a photon. More anomalous axion-photon int...
hep-ph/9703284
Timo van Ritbergen
J.A.M. Vermaseren, S.A. Larin, T. van Ritbergen
The 4-loop quark mass anomalous dimension and the invariant quark mass
11 pages, Latex
Phys.Lett. B405 (1997) 327-333
10.1016/S0370-2693(97)00660-6
UM-TH-97-03, NIKHEF-97-012
hep-ph
null
We present the analytical calculation of the four-loop quark mass anomalous dimension in Quantum Chromodynamics within the minimal subtraction scheme. On the basis of this result we find that the so-called invariant quark mass is a very good reference mass for the accurate evolution of the running MS-bar quark mass i...
[ { "created": "Mon, 10 Mar 1997 18:06:50 GMT", "version": "v1" } ]
2009-10-30
[ [ "Vermaseren", "J. A. M.", "" ], [ "Larin", "S. A.", "" ], [ "van Ritbergen", "T.", "" ] ]
We present the analytical calculation of the four-loop quark mass anomalous dimension in Quantum Chromodynamics within the minimal subtraction scheme. On the basis of this result we find that the so-called invariant quark mass is a very good reference mass for the accurate evolution of the running MS-bar quark mass in ...
1106.5157
Bruno Os\'orio Rodrigues
B. Os\'orio Rodrigues, M.E. Bracco and M. Chiapparini
An inspection on the Borel masses relation used in QCD sum rules
6 pages, 2 figures, Prepared for 11th Hadron Physics
AIP Conf.Proc. 1296 (2010) 302-305
10.1063/1.3523191
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, we studied the Borel masses relation used in QCDSR calculations. These masses are the parameters of the Borel transform used when the three point function is calculated. We analised an usual and a more general linear relations. We concluded that a general linear relation between these masses provides th...
[ { "created": "Sat, 25 Jun 2011 18:19:12 GMT", "version": "v1" }, { "created": "Tue, 28 Jun 2011 13:10:45 GMT", "version": "v2" } ]
2011-06-29
[ [ "Rodrigues", "B. Osório", "" ], [ "Bracco", "M. E.", "" ], [ "Chiapparini", "M.", "" ] ]
In this work, we studied the Borel masses relation used in QCDSR calculations. These masses are the parameters of the Borel transform used when the three point function is calculated. We analised an usual and a more general linear relations. We concluded that a general linear relation between these masses provides the ...
hep-ph/0212034
Taekoon Lee
Taekoon Lee
Direct resummation of the leading renormalons in inclusive semileptonic B decay
10 pages,3 figures, version to appear in Phys. Lett. B
Phys.Lett. B563 (2003) 93
10.1016/S0370-2693(03)00591-4
null
hep-ph
null
We present a Borel resummation method for the QCD corrections in inclusive, charmless, semileptonic B meson decay. The renormalon contributions are resummed to all orders by employing a bilocal expansion of the Borel transform that accurately accounts for the first infrared renormalons in the Borel plane. The renorma...
[ { "created": "Tue, 3 Dec 2002 07:59:11 GMT", "version": "v1" }, { "created": "Tue, 25 Feb 2003 01:08:02 GMT", "version": "v2" }, { "created": "Tue, 6 May 2003 02:49:52 GMT", "version": "v3" } ]
2009-11-07
[ [ "Lee", "Taekoon", "" ] ]
We present a Borel resummation method for the QCD corrections in inclusive, charmless, semileptonic B meson decay. The renormalon contributions are resummed to all orders by employing a bilocal expansion of the Borel transform that accurately accounts for the first infrared renormalons in the Borel plane. The renormalo...
2205.02810
Kanat Nurlan
Mikhail K. Volkov, Aleksey A. Pivovarov, Kanat Nurlan
The decays $\tau \to a_{1} \pi \nu_\tau$, $\tau \to K_{1} \pi \nu_\tau$ and $\tau \to K_{1} K \nu_\tau$ in the extended $U(3)\times U(3)$ chiral NJL model
8 pages, 4 figures
null
10.1142/S0217732322501188
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The branching fractions of the decays $\tau \to a_{1} \pi \nu_\tau$, $\tau \to K_{1} \pi \nu_\tau$ and $\tau \to K_{1} K \nu_\tau$ are calculated in the framework of the extended $U(3)\times U(3)$ chiral Nambu--Jona-Lasinio model. There are no experimental data for these decays in the present time, thus the obtained ...
[ { "created": "Thu, 5 May 2022 17:41:20 GMT", "version": "v1" } ]
2022-09-07
[ [ "Volkov", "Mikhail K.", "" ], [ "Pivovarov", "Aleksey A.", "" ], [ "Nurlan", "Kanat", "" ] ]
The branching fractions of the decays $\tau \to a_{1} \pi \nu_\tau$, $\tau \to K_{1} \pi \nu_\tau$ and $\tau \to K_{1} K \nu_\tau$ are calculated in the framework of the extended $U(3)\times U(3)$ chiral Nambu--Jona-Lasinio model. There are no experimental data for these decays in the present time, thus the obtained re...
hep-ph/0605282
Arif Shoshi
Arif I. Shoshi (Bielefeld University), Bo-Wen Xiao (Columbia University)
Diffractive dissociation including pomeron loops in zero transverse dimensions
14 pages, 5 figures; numerous explanations added, matches the published version
Phys.Rev.D75:054002,2007
10.1103/PhysRevD.75.054002
BI-TP 2006/20, CU-TP-1148
hep-ph
null
We have recently studied the QCD pomeron loop evolution equations in zero transverse dimensions [Shoshi:2005pf]. Using the techniques developed in [Shoshi:2005pf] together with the AGK cutting rules, we present a calculation of single, double and central diffractive cross sections (for large diffractive masses and la...
[ { "created": "Fri, 26 May 2006 12:31:44 GMT", "version": "v1" }, { "created": "Sat, 16 Sep 2006 14:32:50 GMT", "version": "v2" }, { "created": "Sat, 10 Feb 2007 02:29:58 GMT", "version": "v3" } ]
2008-11-26
[ [ "Shoshi", "Arif I.", "", "Bielefeld University" ], [ "Xiao", "Bo-Wen", "", "Columbia\n University" ] ]
We have recently studied the QCD pomeron loop evolution equations in zero transverse dimensions [Shoshi:2005pf]. Using the techniques developed in [Shoshi:2005pf] together with the AGK cutting rules, we present a calculation of single, double and central diffractive cross sections (for large diffractive masses and larg...
hep-ph/9408216
Wolfgang Moedritsch
W.Kummer and W.Moedritsch
Rigorous QCD-Potential for the $t\bar{t}$-System at Threshold
36 pages (mailer uncorrupted version), TUW-94-14
Z.Phys.C66:225-240,1995
10.1007/BF01496596
null
hep-ph
null
Recent evidence for the top mass in the region of 160 $GeV$ for the first time provides an opportunity to use the full power of relativistic quantum field theoretical methods, available also for weakly bound systems. Because of the large decay width $\G$ of the top quark individual energy-levels in "toponium" will be...
[ { "created": "Tue, 2 Aug 1994 18:23:51 GMT", "version": "v1" }, { "created": "Thu, 4 Aug 1994 12:03:46 GMT", "version": "v2" } ]
2014-11-17
[ [ "Kummer", "W.", "" ], [ "Moedritsch", "W.", "" ] ]
Recent evidence for the top mass in the region of 160 $GeV$ for the first time provides an opportunity to use the full power of relativistic quantum field theoretical methods, available also for weakly bound systems. Because of the large decay width $\G$ of the top quark individual energy-levels in "toponium" will be u...
1705.06951
Carlos Tamarit
C. Tamarit
Standard Model - Axion - Seesaw - H portal inflation
8 pages, 2 figures, Contribution to the proceedings of the 52nd Rencontres de Moriond conference, Electroweak session, La Thuile (Italy) 2017. v2: References added
null
null
IPPP/17/42
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Extending the Standard Model with a new complex singlet scalar, right-handed neutrinos and a vector-like quark allows to simultaneously tackle several problems in particle physics and cosmology within a constrained framework that can be falsified by future probes of the cosmic microwave background, as well as by upco...
[ { "created": "Fri, 19 May 2017 12:09:14 GMT", "version": "v1" }, { "created": "Wed, 21 Jun 2017 10:24:04 GMT", "version": "v2" } ]
2017-06-22
[ [ "Tamarit", "C.", "" ] ]
Extending the Standard Model with a new complex singlet scalar, right-handed neutrinos and a vector-like quark allows to simultaneously tackle several problems in particle physics and cosmology within a constrained framework that can be falsified by future probes of the cosmic microwave background, as well as by upcomi...
1804.09766
Cen Zhang
Eleni Vryonidou, Cen Zhang
Dimension-six electroweak top-loop effects in Higgs production and decay
38 pages, 9 figures, version accepted by JHEP
null
10.1007/JHEP08(2018)036
CERN-TH-2018-097
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the next-to-leading order electroweak corrections to Higgs processes from dimension-six top-quark operators in the Standard Model Effective Field Theory approach. We consider the major production channels, including $WH$, $ZH$, and VBF production at the LHC, and $ZH$, VBF production at future lepton collider...
[ { "created": "Wed, 25 Apr 2018 19:32:12 GMT", "version": "v1" }, { "created": "Mon, 1 Oct 2018 08:51:19 GMT", "version": "v2" } ]
2018-10-02
[ [ "Vryonidou", "Eleni", "" ], [ "Zhang", "Cen", "" ] ]
We study the next-to-leading order electroweak corrections to Higgs processes from dimension-six top-quark operators in the Standard Model Effective Field Theory approach. We consider the major production channels, including $WH$, $ZH$, and VBF production at the LHC, and $ZH$, VBF production at future lepton colliders,...
2206.04540
Kevin A. Urqu\'ia Calder\'on
Kevin A. Urqu\'ia-Calder\'on, Inar Timiryasov, Oleg Ruchayskiy
Heavy Neutral Leptons -- Advancing into the PeV domain
29 pages, 11 figures. Updated to JHEP version
J. High Energ. Phys. 2023, 167 (2023)
10.1007/JHEP08(2023)167
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Heavy neutral leptons (HNLs) are hypothetical particles able to explain neutrino oscillations and provide a mechanism for generating the baryon asymmetry of the Universe. Quantum corrections due to such particles give rise to flavor violating processes in the charged lepton sector. Based on the fact that these correc...
[ { "created": "Thu, 9 Jun 2022 14:38:32 GMT", "version": "v1" }, { "created": "Mon, 28 Aug 2023 09:48:23 GMT", "version": "v2" } ]
2023-08-29
[ [ "Urquía-Calderón", "Kevin A.", "" ], [ "Timiryasov", "Inar", "" ], [ "Ruchayskiy", "Oleg", "" ] ]
Heavy neutral leptons (HNLs) are hypothetical particles able to explain neutrino oscillations and provide a mechanism for generating the baryon asymmetry of the Universe. Quantum corrections due to such particles give rise to flavor violating processes in the charged lepton sector. Based on the fact that these correcti...
hep-ph/9803385
Thomas G. Rizzo
Thomas G. Rizzo
Right-Handed Currents in B Decay Revisited
52 pages, 8 figs, LaTex, typos corrected, references added, slight augmentation of discussion
Phys.Rev.D58:055009,1998
10.1103/PhysRevD.58.055009
SLAC-PUB-7738
hep-ph
null
We critically re-examine the case for and against a sizeable right-handed component in the $b\to c$ charged current coupling with a strength $\xi$ relative to the conventional left-handed current. Using data from CLEO on the decay $B\to D^*\ell \nu$, as well as our knowledge of $V_{cb}$ extracted from both inclusive ...
[ { "created": "Wed, 18 Mar 1998 21:28:21 GMT", "version": "v1" }, { "created": "Fri, 3 Apr 1998 19:10:47 GMT", "version": "v2" }, { "created": "Thu, 30 Apr 1998 22:49:30 GMT", "version": "v3" } ]
2014-11-17
[ [ "Rizzo", "Thomas G.", "" ] ]
We critically re-examine the case for and against a sizeable right-handed component in the $b\to c$ charged current coupling with a strength $\xi$ relative to the conventional left-handed current. Using data from CLEO on the decay $B\to D^*\ell \nu$, as well as our knowledge of $V_{cb}$ extracted from both inclusive an...
hep-ph/9208206
null
L. Xiong, E. Shuryak and G. E. Brown
Photon production through $A_1$ resonance in high energy heavy ion collisions
null
Phys.Rev.D46:3798-3801,1992
10.1103/PhysRevD.46.3798
null
hep-ph
null
Electromagnetic radiation from excited hadronic matter is one of the best ways to study the properties of the matter. Considering various processes in the hadronic gas, Kapusta et al \cite{Kapusta_photons} have found a $\pi\rho \rightarrow \pi\gamma$ reaction with intermediate virtual pion or rho to be the main sou...
[ { "created": "Tue, 4 Aug 1992 18:21:04 GMT", "version": "v1" } ]
2010-11-01
[ [ "Xiong", "L.", "" ], [ "Shuryak", "E.", "" ], [ "Brown", "G. E.", "" ] ]
Electromagnetic radiation from excited hadronic matter is one of the best ways to study the properties of the matter. Considering various processes in the hadronic gas, Kapusta et al \cite{Kapusta_photons} have found a $\pi\rho \rightarrow \pi\gamma$ reaction with intermediate virtual pion or rho to be the main source ...