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1006.3244
Carlo Giunti Dr.
Carlo Giunti, Marco Laveder
Statistical Significance of the Gallium Anomaly
6 pages; improved analysis with correlation of theoretical uncertainty
Phys.Rev.C83:065504,2011
10.1103/PhysRevC.83.065504
EURONU-WP6-10-29
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the statistical significance of the anomalous deficit of electron neutrinos measured in the radioactive source experiments of the GALLEX and SAGE solar neutrino detectors taking into account the uncertainty of the detection cross section. We found that the statistical significance of the anomaly is about...
[ { "created": "Wed, 16 Jun 2010 15:16:05 GMT", "version": "v1" }, { "created": "Thu, 17 Jun 2010 18:07:36 GMT", "version": "v2" }, { "created": "Mon, 28 Mar 2011 16:27:18 GMT", "version": "v3" } ]
2011-08-02
[ [ "Giunti", "Carlo", "" ], [ "Laveder", "Marco", "" ] ]
We calculate the statistical significance of the anomalous deficit of electron neutrinos measured in the radioactive source experiments of the GALLEX and SAGE solar neutrino detectors taking into account the uncertainty of the detection cross section. We found that the statistical significance of the anomaly is about 3...
1712.05435
Hiromasa Takaura
Hiromasa Takaura
Renormalon free part of an ultrasoft correction to the static QCD potential
15 pages, 5 figures, version to appear Physics Letters B; title changed, sec. 3 added, errors corrected, conclusions unchanged
null
10.1016/j.physletb.2018.07.014
TU-1054
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Perturbative calculations of the static QCD potential have the $u=3/2$ renormalon uncertainty. In the multipole expansion performed within pNRQCD, this uncertainty at LO is known to get canceled against the ultrasoft correction at NLO. To investigate the net contribution remaining after this renormalon cancellation, ...
[ { "created": "Thu, 14 Dec 2017 20:06:08 GMT", "version": "v1" }, { "created": "Sat, 14 Jul 2018 02:47:30 GMT", "version": "v2" } ]
2018-07-18
[ [ "Takaura", "Hiromasa", "" ] ]
Perturbative calculations of the static QCD potential have the $u=3/2$ renormalon uncertainty. In the multipole expansion performed within pNRQCD, this uncertainty at LO is known to get canceled against the ultrasoft correction at NLO. To investigate the net contribution remaining after this renormalon cancellation, we...
hep-ph/9908256
Jochum van der Bij
T. Binoth, J.J. van der Bij
The stealthy Higgs model at future Linear Colliders
5 pages, 3 eps-figures included
null
null
Freiburg-THEP 99/18, LAPTH 745-99
hep-ph
null
We investigate the influence of scalar gauge singlets on Higgs signals at a linear collider. These lead to a large invisible decay width of the Higgs. We find that for high luminosities ($500-1000 fb^{-1}$) one can essentially cover the allowed parameter range of the model.
[ { "created": "Wed, 4 Aug 1999 18:03:37 GMT", "version": "v1" } ]
2007-05-23
[ [ "Binoth", "T.", "" ], [ "van der Bij", "J. J.", "" ] ]
We investigate the influence of scalar gauge singlets on Higgs signals at a linear collider. These lead to a large invisible decay width of the Higgs. We find that for high luminosities ($500-1000 fb^{-1}$) one can essentially cover the allowed parameter range of the model.
hep-ph/9704219
David Bowser-Chao
David Bowser-Chao, Wai-Yee Keung
CP Violation and Scalar Lepton Flavor Oscillation
replaced Figure 2, added reference to work on squark oscillation; complete uncompressed postscript at http://hepster.phy.uic.edu/~davechao/work/default.html
Phys.Rev.D56:3924-3928,1997
10.1103/PhysRevD.56.3924
UICHEP-TH/97-2
hep-ph
null
Lepton flavor violation can be induced in supersymmetry by the mixing of two or more of the leptonic scalar partners, Krashnikov and Arkani-Hamed et al. pointed out that this effect may be observable at the Next Linear Collider, through slepton pair production with subsequent lepton flavor violating decays. If the sl...
[ { "created": "Thu, 3 Apr 1997 22:23:37 GMT", "version": "v1" }, { "created": "Tue, 8 Apr 1997 14:45:54 GMT", "version": "v2" } ]
2009-09-01
[ [ "Bowser-Chao", "David", "" ], [ "Keung", "Wai-Yee", "" ] ]
Lepton flavor violation can be induced in supersymmetry by the mixing of two or more of the leptonic scalar partners, Krashnikov and Arkani-Hamed et al. pointed out that this effect may be observable at the Next Linear Collider, through slepton pair production with subsequent lepton flavor violating decays. If the slep...
hep-ph/9503413
null
HIDENAGA YAMAGISHI and ISMAIL ZAHED
A MASTER FORMULA FOR CHIRAL SYMMETRY BREAKING
119 pages + 7 Figures available from (I.Zahed)
Annals Phys.247:292-413,1996
10.1006/aphy.1996.0045
TG-94-57
hep-ph
null
We derive a master formula for chiral $SU(2)\times SU(2)$ breaking, based on the Veltman-Bell equations and the Peierls-Dyson relation. Our approach does not rely on the use of the soft pion limit or an expansion around the chiral limit, and yields exact results for on-shell pions. Threshold theorems for $\pi N\right...
[ { "created": "Wed, 22 Mar 1995 19:50:49 GMT", "version": "v1" } ]
2014-11-17
[ [ "YAMAGISHI", "HIDENAGA", "" ], [ "ZAHED", "ISMAIL", "" ] ]
We derive a master formula for chiral $SU(2)\times SU(2)$ breaking, based on the Veltman-Bell equations and the Peierls-Dyson relation. Our approach does not rely on the use of the soft pion limit or an expansion around the chiral limit, and yields exact results for on-shell pions. Threshold theorems for $\pi N\rightar...
hep-ph/0404291
Jens Erler
Jens Erler and Michael J. Ramsey-Musolf
Low Energy Tests of the Weak Interaction
82 pages, 6 figures: published version (with some additional references and a typographical error fixed)
Prog.Part.Nucl.Phys.54:351-442,2005
10.1016/j.ppnp.2004.08.001
FT-2004-02
hep-ph hep-ex nucl-th
null
The study of low energy weak interactions of light quarks and leptons continues to provide important insights into both the Standard Model as well as the physics that may lie beyond it. We review the status and future prospects for low energy electroweak physics. Recent important experimental and theoretical developm...
[ { "created": "Fri, 30 Apr 2004 16:29:24 GMT", "version": "v1" }, { "created": "Wed, 4 May 2005 17:01:54 GMT", "version": "v2" } ]
2010-11-23
[ [ "Erler", "Jens", "" ], [ "Ramsey-Musolf", "Michael J.", "" ] ]
The study of low energy weak interactions of light quarks and leptons continues to provide important insights into both the Standard Model as well as the physics that may lie beyond it. We review the status and future prospects for low energy electroweak physics. Recent important experimental and theoretical developmen...
hep-ph/0609073
Paolo Bolzoni
Paolo Bolzoni
Threshold resummation of Drell-Yan rapidity distributions
10 pages, 3 figures, Final version
Phys.Lett.B643:325-330,2006
10.1016/j.physletb.2006.10.064
IFUM-873/FT
hep-ph
null
We present a derivation of the threshold resummation formula for the Drell-Yan rapidity distribution. Our argument is valid for all values of rapidity and to all orders in perturbative QCD and can be applied to all Drell-Yan processes in a universal way, i.e. both for the production of a virtual photon \gamma^{*} and...
[ { "created": "Thu, 7 Sep 2006 09:38:01 GMT", "version": "v1" }, { "created": "Fri, 8 Sep 2006 09:00:57 GMT", "version": "v2" }, { "created": "Mon, 4 Dec 2006 10:16:38 GMT", "version": "v3" } ]
2008-11-26
[ [ "Bolzoni", "Paolo", "" ] ]
We present a derivation of the threshold resummation formula for the Drell-Yan rapidity distribution. Our argument is valid for all values of rapidity and to all orders in perturbative QCD and can be applied to all Drell-Yan processes in a universal way, i.e. both for the production of a virtual photon \gamma^{*} and t...
2204.13351
Pengcheng Zhao
Pengcheng Zhao
$Z_n$ symmetry in the vortex muon decay
null
null
10.1088/1361-6471/ac9e0f
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Polarization of a vortex state fermion has rich structure due to the nontrivial momentum distribution of wave function. This larger freedom provides an unique opportunity to prepare fermions in exotic polarized states, which do not exist for plane-wave state fermions. Based on the so called spin-orbit state which was...
[ { "created": "Thu, 28 Apr 2022 08:45:41 GMT", "version": "v1" }, { "created": "Tue, 1 Nov 2022 02:35:17 GMT", "version": "v2" } ]
2022-12-28
[ [ "Zhao", "Pengcheng", "" ] ]
Polarization of a vortex state fermion has rich structure due to the nontrivial momentum distribution of wave function. This larger freedom provides an unique opportunity to prepare fermions in exotic polarized states, which do not exist for plane-wave state fermions. Based on the so called spin-orbit state which was s...
1405.3101
Thomas Jacques
Giorgio Busoni, Andrea De Simone, Thomas Jacques, Enrico Morgante, Antonio Riotto
On the Validity of the Effective Field Theory for Dark Matter Searches at the LHC Part III: Analysis for the $t$-channel
15 pages, 8 figures. Updated to match published version. References, minor clarifications, and one figure added
JCAP09(2014)022
10.1088/1475-7516/2014/09/022
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We extend our recent analysis of the limitations of the effective field theory approach to studying dark matter at the LHC, by investigating the case in which Dirac dark matter couples to standard model quarks via $t$-channel exchange of a heavy scalar mediator. We provide analytical results for the validity of the e...
[ { "created": "Tue, 13 May 2014 10:59:58 GMT", "version": "v1" }, { "created": "Thu, 11 Sep 2014 10:04:32 GMT", "version": "v2" } ]
2014-09-12
[ [ "Busoni", "Giorgio", "" ], [ "De Simone", "Andrea", "" ], [ "Jacques", "Thomas", "" ], [ "Morgante", "Enrico", "" ], [ "Riotto", "Antonio", "" ] ]
We extend our recent analysis of the limitations of the effective field theory approach to studying dark matter at the LHC, by investigating the case in which Dirac dark matter couples to standard model quarks via $t$-channel exchange of a heavy scalar mediator. We provide analytical results for the validity of the eff...
hep-ph/0412052
Mark Strikman
L.Frankfurt (TAU), M. Strikman (PSU), M.Zhalov (PNPI)
On the universality of cross sections of hadron-hadron(nuclei) collisions at superhigh energies
24 pages, 9 figures
Phys.Lett. B616 (2005) 59-75
10.1016/j.physletb.2005.04.051
null
hep-ph
null
We analyze the pattern of the onset of complete absorption (the black limit) in the high energy hadron-hadron collisions. The black limit arises due to the hard and soft interaction dynamics as a function of the impact parameters b. Both hard and soft mechanisms provide universal dependence of the partial amplitude o...
[ { "created": "Fri, 3 Dec 2004 17:38:36 GMT", "version": "v1" } ]
2009-11-10
[ [ "Frankfurt", "L.", "", "TAU" ], [ "Strikman", "M.", "", "PSU" ], [ "Zhalov", "M.", "", "PNPI" ] ]
We analyze the pattern of the onset of complete absorption (the black limit) in the high energy hadron-hadron collisions. The black limit arises due to the hard and soft interaction dynamics as a function of the impact parameters b. Both hard and soft mechanisms provide universal dependence of the partial amplitude of ...
2407.00700
Xin-Qiang Li
Feng-Zhi Chen, Xin-Qiang Li, Shi-Can Peng, Ya-Dong Yang, and Yuan-He Zou
Study of $\tau^- \to \omega \pi^- \nu_\tau$ decay in resonance chiral theory with tensor sources
27 pages, 4 tables, and 2 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, we make a study of the $\tau^- \to \omega\pi^-\nu_\tau$ decay in the framework of low-energy effective field theory. The $J^{\mathcal{P}G}$ decompositions of the quark currents and the $\omega\pi$ final state show that, besides the Standard Model vector interaction, only the non-standard tensor interact...
[ { "created": "Sun, 30 Jun 2024 13:47:56 GMT", "version": "v1" } ]
2024-07-02
[ [ "Chen", "Feng-Zhi", "" ], [ "Li", "Xin-Qiang", "" ], [ "Peng", "Shi-Can", "" ], [ "Yang", "Ya-Dong", "" ], [ "Zou", "Yuan-He", "" ] ]
In this work, we make a study of the $\tau^- \to \omega\pi^-\nu_\tau$ decay in the framework of low-energy effective field theory. The $J^{\mathcal{P}G}$ decompositions of the quark currents and the $\omega\pi$ final state show that, besides the Standard Model vector interaction, only the non-standard tensor interactio...
0809.4930
Yasaman Farzan
Yaser Ayazi and Yasaman Farzan
Combined Analysis of Electric Dipole Moments and Lepton Flavor Violating Rare Decays
Plenary talk at ICHEP08, Philadelphia, USA, August 2008, 10 pages
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the context of general Minimal Supersymmetric Standard Model (MSSM), new sources for Lepton Flavor Violation (LFV) as well as CP-violation appear. We show that in the presence of LFV sources, the electric dipole moment of the electron ($d_e$) can receive new contributions. In particular, $d_e$ can receive a signif...
[ { "created": "Mon, 29 Sep 2008 10:54:38 GMT", "version": "v1" }, { "created": "Mon, 20 Oct 2008 08:26:18 GMT", "version": "v2" } ]
2008-10-20
[ [ "Ayazi", "Yaser", "" ], [ "Farzan", "Yasaman", "" ] ]
In the context of general Minimal Supersymmetric Standard Model (MSSM), new sources for Lepton Flavor Violation (LFV) as well as CP-violation appear. We show that in the presence of LFV sources, the electric dipole moment of the electron ($d_e$) can receive new contributions. In particular, $d_e$ can receive a signific...
hep-ph/0505181
Leif Lonnblad
Leif Lonnblad, Malin Sjodahl and Torsten Akesson
QCD-supression by Black Hole Production at the LHC
null
JHEP0509:019,2005
10.1088/1126-6708/2005/09/019
null
hep-ph
null
Possible consequences of the production of small black holes at the LHC for different scenarios with large extra dimensions are investigated. The effects from black hole production on some standard jet observables are examined, concentrating on the reduction of the QCD cross section. It is found that black hole produ...
[ { "created": "Fri, 20 May 2005 13:25:52 GMT", "version": "v1" }, { "created": "Tue, 7 Jun 2005 12:51:58 GMT", "version": "v2" }, { "created": "Thu, 25 Aug 2005 13:47:11 GMT", "version": "v3" } ]
2009-11-11
[ [ "Lonnblad", "Leif", "" ], [ "Sjodahl", "Malin", "" ], [ "Akesson", "Torsten", "" ] ]
Possible consequences of the production of small black holes at the LHC for different scenarios with large extra dimensions are investigated. The effects from black hole production on some standard jet observables are examined, concentrating on the reduction of the QCD cross section. It is found that black hole product...
1511.00498
Shabalin Evgeny
E. P. Shabalin
On the $\pi \pi$-scattering lengths in the theory with effective Lagrangian
7 pages, 0 figures
null
10.1134/S1063778816020162
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Use of the effective Lagrangian incorporating both the scalar and pseudoscalar mesons gives a possibility to calculate the $\pi \pi$-scattering lengths without attraction of the ChPT theory.
[ { "created": "Mon, 2 Nov 2015 13:43:16 GMT", "version": "v1" } ]
2016-06-22
[ [ "Shabalin", "E. P.", "" ] ]
Use of the effective Lagrangian incorporating both the scalar and pseudoscalar mesons gives a possibility to calculate the $\pi \pi$-scattering lengths without attraction of the ChPT theory.
2204.05770
J\'er\'emie Quarroz
Christian Br{\o}nnum-Hansen, Kirill Melnikov, J\'er\'emie Quarroz, Chiara Signorile-Signorile and Chen-Yu Wang
Non-factorisable contribution to $t$-channel single-top production
29 pages, 5 figures
null
10.1007/JHEP06(2022)061
TTP22-021, P3H-22-035
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We compute the non-factorisable ${\cal O}(\alpha_s^2)$ corrections to $t$-channel single-top quark production at the LHC. These peculiar corrections arise because of interactions between the heavy- and the light-quark lines and appear for the very first time at next-to-next-to-leading order in perturbative QCD. We fi...
[ { "created": "Tue, 12 Apr 2022 12:57:15 GMT", "version": "v1" } ]
2022-06-29
[ [ "Brønnum-Hansen", "Christian", "" ], [ "Melnikov", "Kirill", "" ], [ "Quarroz", "Jérémie", "" ], [ "Signorile-Signorile", "Chiara", "" ], [ "Wang", "Chen-Yu", "" ] ]
We compute the non-factorisable ${\cal O}(\alpha_s^2)$ corrections to $t$-channel single-top quark production at the LHC. These peculiar corrections arise because of interactions between the heavy- and the light-quark lines and appear for the very first time at next-to-next-to-leading order in perturbative QCD. We find...
hep-ph/0001013
Enrique Ruiz Arriola
J. Nieves and E. Ruiz Arriola
Unitarized Heavy Baryon Chiral Perturbation Theory and the $\Delta$ Resonance in $\pi N $ Scattering
(RevTeX) 12 pages, 2 figures
null
null
UG-DFM-6/99
hep-ph nucl-th
null
Based on the recent phenomenological analysis done by M. Mojzis, Eur. Phys. Jour. {\bf C2} (1998) 182, of $\pi N $ scattering within the framework of Heavy Baryon Chiral Perturbation Theory we predict, after a suitable unitarization of the amplitude, the $\Delta$ resonance at $\sqrt{s} = M_\Delta = 1238 \er{22}{18}{\...
[ { "created": "Mon, 3 Jan 2000 11:27:31 GMT", "version": "v1" } ]
2007-05-23
[ [ "Nieves", "J.", "" ], [ "Arriola", "E. Ruiz", "" ] ]
Based on the recent phenomenological analysis done by M. Mojzis, Eur. Phys. Jour. {\bf C2} (1998) 182, of $\pi N $ scattering within the framework of Heavy Baryon Chiral Perturbation Theory we predict, after a suitable unitarization of the amplitude, the $\Delta$ resonance at $\sqrt{s} = M_\Delta = 1238 \er{22}{18}{\rm...
1607.02740
Luca Vecchi
Luca Vecchi
The anomalous dimension of spin-1/2 baryons in many flavors QCD
We briefly discuss the absence of scheme-dependence in physical observables to all orders in \alpha Nf and comment on the value of the anomalous dimension within the conformal window
Phys. Rev. D 97, 116016 (2018)
10.1103/PhysRevD.97.116016
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The anomalous dimension of spin-1/2 baryon operators in QCD is derived at leading 1/Nf order using the minimal subtraction scheme. A residual ambiguity, originating from the presence of evanescent operators in dimensional regularization, is parametrized by a function of the renormalized coupling. Our result is shown ...
[ { "created": "Sun, 10 Jul 2016 12:39:21 GMT", "version": "v1" }, { "created": "Wed, 18 Jan 2017 14:59:08 GMT", "version": "v2" } ]
2018-06-27
[ [ "Vecchi", "Luca", "" ] ]
The anomalous dimension of spin-1/2 baryon operators in QCD is derived at leading 1/Nf order using the minimal subtraction scheme. A residual ambiguity, originating from the presence of evanescent operators in dimensional regularization, is parametrized by a function of the renormalized coupling. Our result is shown to...
hep-ph/9909298
Kaustubh Agashe
K. Agashe and N.G. Deshpande (ITS, University of Oregon)
CLEO measurement of $B \to \pi^+ \pi^-$ and determination of weak phase $\alpha$
LaTeX file, 14 pages including 5 eps figures. Revised version with a slightly modified title. In the new version, we use QCD improved factorization. For the value of form factor used earlier, the conclusion that small Vub/Vcb is preferred leading to large error in alpha is unchanged. We have added results for a...
Phys.Rev.D61:071301,2000
10.1103/PhysRevD.61.071301
OITS-678
hep-ph
null
The CLEO collaboration has recently reported a (first) measurement of $BR (B \to \pi^+ \pi^-) = (4.7^{+1.8}_{-1.5} \pm 0.6) \times 10^{-6}$. We study, using recent results on QCD improved factorization, the implications of this measurement for the determination of the CKM phase $\alpha$ and also for the rate for $B \...
[ { "created": "Wed, 8 Sep 1999 22:56:43 GMT", "version": "v1" }, { "created": "Wed, 8 Sep 1999 23:03:28 GMT", "version": "v2" }, { "created": "Mon, 13 Sep 1999 23:19:00 GMT", "version": "v3" }, { "created": "Thu, 18 Nov 1999 22:48:59 GMT", "version": "v4" }, { "cre...
2009-12-30
[ [ "Agashe", "K.", "", "ITS, University of Oregon" ], [ "Deshpande", "N. G.", "", "ITS, University of Oregon" ] ]
The CLEO collaboration has recently reported a (first) measurement of $BR (B \to \pi^+ \pi^-) = (4.7^{+1.8}_{-1.5} \pm 0.6) \times 10^{-6}$. We study, using recent results on QCD improved factorization, the implications of this measurement for the determination of the CKM phase $\alpha$ and also for the rate for $B \to...
hep-ph/0203038
Guray Erkol
Guray Erkol and Gursevil Turan
The exclusive $B_s->\phi \ell^+ \ell^-$ decay in the two Higgs doublet models
14 pages, 6 figures, version to appear in Eur.Phys.J.C
Eur.Phys.J.C25:575-581,2002
10.1007/s10052-002-1008-9
null
hep-ph
null
We study the differential branching ratio, branching ratio and the forward-backward asymmetry for the exclusive $B_s->\phi \ell^+ \ell^-$ decay in the two Higgs doublet model. We analyze the dependencies of these quantities on the model parameters and show that these observables are highly sensitive to new physics an...
[ { "created": "Tue, 5 Mar 2002 09:38:35 GMT", "version": "v1" }, { "created": "Mon, 1 Jul 2002 15:21:27 GMT", "version": "v2" } ]
2009-01-07
[ [ "Erkol", "Guray", "" ], [ "Turan", "Gursevil", "" ] ]
We study the differential branching ratio, branching ratio and the forward-backward asymmetry for the exclusive $B_s->\phi \ell^+ \ell^-$ decay in the two Higgs doublet model. We analyze the dependencies of these quantities on the model parameters and show that these observables are highly sensitive to new physics and ...
hep-ph/9801289
Sei Umisedo Quark-Nuclear Group Research
S. Umisedo, H. Toki and H. Suganuma (Research Center for Nuclear Physics, Osaka University)
Properties of the QCD vacuum in the dual Ginzburg-Landau theory
3 pages, LateX, sprocl.sty and 2 figures included. Talk presented by S. Umisedo at XVII RCNP International Symposium on Innovative Computational Methods in Nuclear Many-Body Problems (INNOCOM97), 10 - 15, Nov., 1997, Osaka, Japan
null
null
null
hep-ph
null
We study the properties of the QCD vacuum in the dual Ginzburg-Landau theory, where QCD-monopole condensation leads to the linear confinement potential. Using the effective potential, we find monopole dominance for chiral-symmetry breaking. The effective mass of off-diagonal (charged) gluons is estimated as $M_{ch} \...
[ { "created": "Wed, 14 Jan 1998 07:05:51 GMT", "version": "v1" } ]
2007-05-23
[ [ "Umisedo", "S.", "", "Research Center for Nuclear\n Physics, Osaka University" ], [ "Toki", "H.", "", "Research Center for Nuclear\n Physics, Osaka University" ], [ "Suganuma", "H.", "", "Research Center for Nuclear\n Physics, Osaka University" ] ]
We study the properties of the QCD vacuum in the dual Ginzburg-Landau theory, where QCD-monopole condensation leads to the linear confinement potential. Using the effective potential, we find monopole dominance for chiral-symmetry breaking. The effective mass of off-diagonal (charged) gluons is estimated as $M_{ch} \si...
hep-ph/0004024
Andrei Linde
Gary Felder, Lev Kofman, Andrei Linde, and Igor Tkachev
Inflation After Preheating
22 pages, 7 figures, JHEP
JHEP 0008:010,2000
10.1088/1126-6708/2000/08/010
null
hep-ph astro-ph gr-qc hep-th
null
Preheating after inflation may lead to nonthermal phase transitions with symmetry restoration. These phase transitions may occur even if the total energy density of fluctuations produced during reheating is relatively small as compared with the vacuum energy in the state with restored symmetry. As a result, in some i...
[ { "created": "Tue, 4 Apr 2000 11:04:27 GMT", "version": "v1" } ]
2009-10-31
[ [ "Felder", "Gary", "" ], [ "Kofman", "Lev", "" ], [ "Linde", "Andrei", "" ], [ "Tkachev", "Igor", "" ] ]
Preheating after inflation may lead to nonthermal phase transitions with symmetry restoration. These phase transitions may occur even if the total energy density of fluctuations produced during reheating is relatively small as compared with the vacuum energy in the state with restored symmetry. As a result, in some inf...
1909.07706
Fang Ye Dr
Kenji Kadota, Ui Min, Minho Son, Fang Ye
Cosmological Relaxation from Dark Fermion Production
40 pages, 9 figures; small modifications in the appendix: comments on the static Universe limit added, brief discussion about the shutdown of the backraction added; version accepted for publication in JHEP
null
10.1007/JHEP02(2020)135
null
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the cosmological relaxation solution to the electroweak hierarchy problem using the fermion production as a dominant friction force. In our approach, neither super-Planckian field excursions nor a large number of e-folds arise, and scanning over thermal Higgs mass squared is avoided. The produced fermions...
[ { "created": "Tue, 17 Sep 2019 10:40:11 GMT", "version": "v1" }, { "created": "Sat, 22 Feb 2020 06:30:05 GMT", "version": "v2" } ]
2020-03-18
[ [ "Kadota", "Kenji", "" ], [ "Min", "Ui", "" ], [ "Son", "Minho", "" ], [ "Ye", "Fang", "" ] ]
We consider the cosmological relaxation solution to the electroweak hierarchy problem using the fermion production as a dominant friction force. In our approach, neither super-Planckian field excursions nor a large number of e-folds arise, and scanning over thermal Higgs mass squared is avoided. The produced fermions f...
2306.17037
Kwei-Chou Yang
Kwei-Chou Yang
Self-Interacting Forbidden Dark Matter under a Cannibally Co-Decaying Phase
28 pages, 8 figures, The content revised; Some statements corrected; Main results unchanged
null
null
CYCU-HEP-23-04
hep-ph astro-ph.CO astro-ph.HE hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In a usual dark matter (DM) model without a huge mass difference between the DM and lighter mediator, using the coupling strength suitable for having the correct relic density, the resulting self-interaction becomes several orders of magnitude smaller than that required to interpret the small scale structures. We pre...
[ { "created": "Thu, 29 Jun 2023 15:36:36 GMT", "version": "v1" }, { "created": "Thu, 12 Oct 2023 17:52:02 GMT", "version": "v2" }, { "created": "Wed, 3 Apr 2024 15:53:21 GMT", "version": "v3" } ]
2024-04-04
[ [ "Yang", "Kwei-Chou", "" ] ]
In a usual dark matter (DM) model without a huge mass difference between the DM and lighter mediator, using the coupling strength suitable for having the correct relic density, the resulting self-interaction becomes several orders of magnitude smaller than that required to interpret the small scale structures. We prese...
1905.11889
Wei Liu
Frank F. Deppisch, Suchita Kulkarni, Wei Liu
Heavy neutrino production via $Z'$ at the lifetime frontier
20 pages, 6 figures, matches published version
Phys. Rev. D 100, 035005 (2019)
10.1103/PhysRevD.100.035005
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the pair production of right-handed neutrinos from the decay of an additional neutral $Z^{\prime}$ boson in the gauged $B-L$ model. Taking into account current constraints on the $Z^{\prime}$ mass and the associated gauge coupling $g_{1}^{\prime}$, we analyse the sensitivity of proposed experiments at ...
[ { "created": "Tue, 28 May 2019 15:34:16 GMT", "version": "v1" }, { "created": "Wed, 7 Aug 2019 15:34:56 GMT", "version": "v2" } ]
2019-08-14
[ [ "Deppisch", "Frank F.", "" ], [ "Kulkarni", "Suchita", "" ], [ "Liu", "Wei", "" ] ]
We investigate the pair production of right-handed neutrinos from the decay of an additional neutral $Z^{\prime}$ boson in the gauged $B-L$ model. Taking into account current constraints on the $Z^{\prime}$ mass and the associated gauge coupling $g_{1}^{\prime}$, we analyse the sensitivity of proposed experiments at th...
hep-ph/0212163
Per Osland
A.A. Babich, G. Della Ricca, J. Holt, P. Osland, A.A. Pankov, and N. Paver
Model-independent constraints on contact interactions from LEP2 data analysis
13 pages, LaTeX, including figures. v2: Included discussion of tau data, version to appear in EPJC
Eur.Phys.J.C29:103-109,2003
10.1140/epjc/s2003-01206-5
null
hep-ph
null
We derive model-independent constraints on four-fermion contact interaction-type dynamics from the published preliminary LEP2 experimental data on e^+e^- annihilation into \mu^+\mu^- and \tau^+\tau^- pairs, measured at different energies between 130 and 207 GeV. The basic observables are chosen to be the total cross ...
[ { "created": "Wed, 11 Dec 2002 19:02:26 GMT", "version": "v1" }, { "created": "Mon, 24 Mar 2003 17:17:11 GMT", "version": "v2" } ]
2009-01-07
[ [ "Babich", "A. A.", "" ], [ "Della Ricca", "G.", "" ], [ "Holt", "J.", "" ], [ "Osland", "P.", "" ], [ "Pankov", "A. A.", "" ], [ "Paver", "N.", "" ] ]
We derive model-independent constraints on four-fermion contact interaction-type dynamics from the published preliminary LEP2 experimental data on e^+e^- annihilation into \mu^+\mu^- and \tau^+\tau^- pairs, measured at different energies between 130 and 207 GeV. The basic observables are chosen to be the total cross se...
hep-ph/0510372
Wolfgang Lucha
Z.-F. Li, Wolfgang Lucha, F. F. Schoberl
Exact-propagator instantaneous Bethe-Salpeter equation for quark-antiquark bound states
16 pages, 3 figures
Mod.Phys.Lett. A21 (2006) 1657-1673
10.1142/S0217732306021001
HEPHY-PUB 812/05
hep-ph hep-lat nucl-th
null
Recently, an instantaneous approximation to the Bethe-Salpeter formalism for the analysis of bound states in quantum field theory has been proposed which retains, in contrast to the Salpeter equation, as far as possible the exact propagators of the bound-state constituents, extracted nonperturbatively from Dyson-Schw...
[ { "created": "Fri, 28 Oct 2005 08:00:03 GMT", "version": "v1" } ]
2009-11-11
[ [ "Li", "Z. -F.", "" ], [ "Lucha", "Wolfgang", "" ], [ "Schoberl", "F. F.", "" ] ]
Recently, an instantaneous approximation to the Bethe-Salpeter formalism for the analysis of bound states in quantum field theory has been proposed which retains, in contrast to the Salpeter equation, as far as possible the exact propagators of the bound-state constituents, extracted nonperturbatively from Dyson-Schwin...
hep-ph/9804406
V. Zoller
V. R. Zoller (ITEP Moscow Russia)
Forward Cone in Exclusive Heavy Vector Meson Production
6 pages, Latex
null
null
FZ-IKP(TH)-1998-6
hep-ph
null
The color dipole gBFKL phenomenology of a diffraction cone for photo- and electroproduction $\gamma^{*}N \to VN$ of heavy vector mesons (charmonium & bottonium) at HERA and in fixed target experiments is presented. A substantial shrinkage of the diffraction cone from the CERN/FNAL to the HERA range of c.m.s. energy $...
[ { "created": "Sun, 26 Apr 1998 16:37:59 GMT", "version": "v1" } ]
2007-05-23
[ [ "Zoller", "V. R.", "", "ITEP Moscow Russia" ] ]
The color dipole gBFKL phenomenology of a diffraction cone for photo- and electroproduction $\gamma^{*}N \to VN$ of heavy vector mesons (charmonium & bottonium) at HERA and in fixed target experiments is presented. A substantial shrinkage of the diffraction cone from the CERN/FNAL to the HERA range of c.m.s. energy $W$...
0704.1821
Matthew Reece
Kaustubh Agashe, Csaba Csaki, Christophe Grojean, Matthew Reece
The S-parameter in Holographic Technicolor Models
21 pages, 2 figures. v2: references added
JHEP 0712:003,2007
10.1088/1126-6708/2007/12/003
null
hep-ph
null
We study the S parameter, considering especially its sign, in models of electroweak symmetry breaking (EWSB) in extra dimensions, with fermions localized near the UV brane. Such models are conjectured to be dual to 4D strong dynamics triggering EWSB. The motivation for such a study is that a negative value of S can s...
[ { "created": "Mon, 16 Apr 2007 15:43:51 GMT", "version": "v1" }, { "created": "Wed, 25 Jul 2007 10:15:21 GMT", "version": "v2" } ]
2009-01-06
[ [ "Agashe", "Kaustubh", "" ], [ "Csaki", "Csaba", "" ], [ "Grojean", "Christophe", "" ], [ "Reece", "Matthew", "" ] ]
We study the S parameter, considering especially its sign, in models of electroweak symmetry breaking (EWSB) in extra dimensions, with fermions localized near the UV brane. Such models are conjectured to be dual to 4D strong dynamics triggering EWSB. The motivation for such a study is that a negative value of S can sig...
1909.05216
Marc de Montigny
Mariana Frank, Marc de Montigny, Pierre-Philippe A. Ouimet, James Pinfold, Ameir Shaa, Michael Staelens
Searching for Heavy Neutrinos with the MoEDAL-MAPP Detector at the LHC
15 pages, 6 figures
null
10.1016/j.physletb.2020.135204
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a strategy for searching for heavy neutrinos at the Large Hadron Collider using the MoEDAL Experiment's MAPP detector. We hypothesize the heavy neutrino to be a member of a fourth generation lepton doublet, with the electric dipole moment (EDM) introduced within a dimension-five operator. In this model the...
[ { "created": "Wed, 11 Sep 2019 17:15:16 GMT", "version": "v1" }, { "created": "Thu, 2 Jan 2020 22:49:32 GMT", "version": "v2" } ]
2020-02-19
[ [ "Frank", "Mariana", "" ], [ "de Montigny", "Marc", "" ], [ "Ouimet", "Pierre-Philippe A.", "" ], [ "Pinfold", "James", "" ], [ "Shaa", "Ameir", "" ], [ "Staelens", "Michael", "" ] ]
We present a strategy for searching for heavy neutrinos at the Large Hadron Collider using the MoEDAL Experiment's MAPP detector. We hypothesize the heavy neutrino to be a member of a fourth generation lepton doublet, with the electric dipole moment (EDM) introduced within a dimension-five operator. In this model the h...
2205.08294
Risto Raitio Dr
Risto Raitio
A Stringy Model of Pointlike Particles
arXiv admin note: substantial text overlap with arXiv:1509.07153 by other authors
Nuclear Physics B980 (2022) 115826
10.1016/j.nuclphysb.2022.115826
null
hep-ph hep-th
http://creativecommons.org/licenses/by/4.0/
A previous supersymmetric preon scenario for visible matter particles is extended to the dark sector. In addition, the scenario is reformulated as a Double Field Theory (DFT) with four extra dimensions, to avoid a singular Big Bang in cosmology. T-duality and doubled local Lorentz symmetry of the model are genuine st...
[ { "created": "Tue, 17 May 2022 12:48:17 GMT", "version": "v1" } ]
2022-05-18
[ [ "Raitio", "Risto", "" ] ]
A previous supersymmetric preon scenario for visible matter particles is extended to the dark sector. In addition, the scenario is reformulated as a Double Field Theory (DFT) with four extra dimensions, to avoid a singular Big Bang in cosmology. T-duality and doubled local Lorentz symmetry of the model are genuine stri...
hep-ph/0201239
Massimo Passera
P. Minkowski and M. Passera
Elastic Scattering of Neutrinos off Polarized Electrons
6 pages, 2 figures
Phys.Lett. B541 (2002) 151-154
10.1016/S0370-2693(02)02223-2
BUTP 2002/01
hep-ph
null
We calculate the cross sections for elastic nu_l + e -> nu_l + e and antinu_l + e -> antinu_l + e scattering (l=e, mu or tau) in the Born approximation and with exactly fixed polarization states of target and final-state electrons, discussing their sensitivity to the incident (anti)neutrino flavor. We suggest investi...
[ { "created": "Fri, 25 Jan 2002 09:43:28 GMT", "version": "v1" } ]
2009-11-07
[ [ "Minkowski", "P.", "" ], [ "Passera", "M.", "" ] ]
We calculate the cross sections for elastic nu_l + e -> nu_l + e and antinu_l + e -> antinu_l + e scattering (l=e, mu or tau) in the Born approximation and with exactly fixed polarization states of target and final-state electrons, discussing their sensitivity to the incident (anti)neutrino flavor. We suggest investiga...
1003.1468
Wei Chao
Wei Chao
Neutrino Masses and A TeV Scale Seesaw Mechanism
13 pages, 4 figures. references added
Phys.Rev.D82:016008, 2010
10.1103/PhysRevD.82.016008
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A simple extension of the Standard Model providing TeV scale seesaw mechanism is presented. Beside the Standard Model particles and right-handed Majorana neutrinos, the model contains a singly charged scalar, an extra Higgs doublet and three vector like singly charged fermions. In our model, Dirac neutrino mass matri...
[ { "created": "Sun, 7 Mar 2010 13:55:59 GMT", "version": "v1" }, { "created": "Wed, 27 Oct 2010 07:47:15 GMT", "version": "v2" } ]
2010-11-03
[ [ "Chao", "Wei", "" ] ]
A simple extension of the Standard Model providing TeV scale seesaw mechanism is presented. Beside the Standard Model particles and right-handed Majorana neutrinos, the model contains a singly charged scalar, an extra Higgs doublet and three vector like singly charged fermions. In our model, Dirac neutrino mass matrix ...
0912.4593
Shu Luo
Shu Luo, Zhi-zhong Xing
Radiative Corrections to the CKM Unitarity Triangles
RevTeX 12 pages, 2 PS figures. More discussions added. Accepted for publication.
J.Phys.G37:075018,2010
10.1088/0954-3899/37/7/075018
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The 3 X 3 CKM matrix defines six unitarity triangles in the complex plane, which will be carefully explored in the LHCb experiment and at the Super-B factory. We calculate the running effects of nine different inner angles and eighteen different sides of the six triangles from the electroweak scale to a superhigh-ene...
[ { "created": "Wed, 23 Dec 2009 12:28:09 GMT", "version": "v1" }, { "created": "Thu, 6 May 2010 04:02:22 GMT", "version": "v2" } ]
2014-11-20
[ [ "Luo", "Shu", "" ], [ "Xing", "Zhi-zhong", "" ] ]
The 3 X 3 CKM matrix defines six unitarity triangles in the complex plane, which will be carefully explored in the LHCb experiment and at the Super-B factory. We calculate the running effects of nine different inner angles and eighteen different sides of the six triangles from the electroweak scale to a superhigh-energ...
1402.0445
Emanuele Re
Christoph Englert, Emanuele Re
Bounding the top Yukawa with Higgs-associated single-top production
Improved a couple of sentences, improved quality of fig.1, added 1 citation, matches version published in PRD
Phys. Rev. D 89, 073020 (2014)
10.1103/PhysRevD.89.073020
OUTP-14-01P
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
After the discovery of the 125 GeV scalar boson with gauge properties similar to the Standard Model Higgs, the search for beyond the SM interactions will focus on studying the discovered particles' coupling properties more precisely and shedding light on the relation of fermion masses with the electroweak vacuum. The...
[ { "created": "Mon, 3 Feb 2014 17:49:22 GMT", "version": "v1" }, { "created": "Fri, 9 May 2014 15:39:28 GMT", "version": "v2" } ]
2014-05-12
[ [ "Englert", "Christoph", "" ], [ "Re", "Emanuele", "" ] ]
After the discovery of the 125 GeV scalar boson with gauge properties similar to the Standard Model Higgs, the search for beyond the SM interactions will focus on studying the discovered particles' coupling properties more precisely and shedding light on the relation of fermion masses with the electroweak vacuum. The l...
0909.4665
Sven Heinemeyer
S. Heinemeyer, V.A. Khoze, M.G. Ryskin, M. Tasevsky, G. Weiglein
BSM Higgs Studies at the LHC in the Forward Proton Mode
7 pages, 4 figures, talk given at the EDS09 (Blois workshop), CERN, 2009
null
null
IPPP/09/71, DCPT/09/142
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The prospects for central exclusive diffractive (CED) production of BSM Higgs bosons at the LHC are reviewed. This comprises the production of MSSM and 4th generation Higgs bosons. The sensitivity of the searches in the forward proton mode for the Higgs bosons as well as the possibility of a coupling structure determ...
[ { "created": "Fri, 25 Sep 2009 11:15:18 GMT", "version": "v1" } ]
2009-09-28
[ [ "Heinemeyer", "S.", "" ], [ "Khoze", "V. A.", "" ], [ "Ryskin", "M. G.", "" ], [ "Tasevsky", "M.", "" ], [ "Weiglein", "G.", "" ] ]
The prospects for central exclusive diffractive (CED) production of BSM Higgs bosons at the LHC are reviewed. This comprises the production of MSSM and 4th generation Higgs bosons. The sensitivity of the searches in the forward proton mode for the Higgs bosons as well as the possibility of a coupling structure determin...
1404.5823
Kristian McDonald
Archil Kobakhidze and Kristian L. McDonald
Comments on the Hierarchy Problem in Effective Theories
13 pages
null
10.1007/JHEP07(2014)155
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss aspects of the hierarchy problem in effective theories with light scalars and a large, physical ultraviolet (UV) cutoff. We make two main points: (1) The (naive) fine-tuning observed in an effective theory does not automatically imply that the UV completion is fine tuned. Instead, it gives a type of upper ...
[ { "created": "Wed, 23 Apr 2014 13:48:32 GMT", "version": "v1" } ]
2015-06-19
[ [ "Kobakhidze", "Archil", "" ], [ "McDonald", "Kristian L.", "" ] ]
We discuss aspects of the hierarchy problem in effective theories with light scalars and a large, physical ultraviolet (UV) cutoff. We make two main points: (1) The (naive) fine-tuning observed in an effective theory does not automatically imply that the UV completion is fine tuned. Instead, it gives a type of upper bo...
1802.01804
Andrzej Czarnecki
Andrzej Czarnecki, William J. Marciano, and Alberto Sirlin
Neutron Lifetime and Axial Coupling Connection
null
Phys. Rev. Lett. 120, 202002 (2018)
10.1103/PhysRevLett.120.202002
Alberta Thy 1-18
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Experimental studies of neutron decay, $n\to pe\bar\nu$, exhibit two anomalies. The first is a 8.6(2.1)s, roughly $4\sigma$ difference between the average beam measured neutron lifetime, $\tau_n^\text{beam}=888.0(2.0)$s, and the more precise average trapped ultra cold neutron determination, $\tau_n^\text{trap}=879.4(...
[ { "created": "Tue, 6 Feb 2018 05:30:04 GMT", "version": "v1" }, { "created": "Thu, 22 Feb 2018 16:16:25 GMT", "version": "v2" }, { "created": "Wed, 9 May 2018 09:58:59 GMT", "version": "v3" } ]
2018-05-23
[ [ "Czarnecki", "Andrzej", "" ], [ "Marciano", "William J.", "" ], [ "Sirlin", "Alberto", "" ] ]
Experimental studies of neutron decay, $n\to pe\bar\nu$, exhibit two anomalies. The first is a 8.6(2.1)s, roughly $4\sigma$ difference between the average beam measured neutron lifetime, $\tau_n^\text{beam}=888.0(2.0)$s, and the more precise average trapped ultra cold neutron determination, $\tau_n^\text{trap}=879.4(6)...
1206.2252
Johannes Bluemlein
Jakob Ablinger, Johannes Bl\"umlein, Alexander Hasselhuhn, Sebastian Klein, Carsten Schneider, and Fabian Wi{\ss}brock
Massive 3-loop Ladder Diagrams for Quarkonic Local Operator Matrix Elements
32 pages, 1 style file, 17 figures
null
10.1016/j.nuclphysb.2012.06.007
DESY 12-056; DO-TH-12/17; TTK-12-26; SFB/CPP-12-37; LPN 12-055
hep-ph hep-th math-ph math.MP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
3-loop diagrams of the ladder-type, which emerge for local quarkonic twist-2 operator matrix elements, are computed directly for general values of the Mellin variable $N$ using Appell-function representations and applying modern summation technologies provided by the package {\sf Sigma} and the method of hyperlogarit...
[ { "created": "Mon, 11 Jun 2012 15:19:40 GMT", "version": "v1" }, { "created": "Fri, 10 May 2013 13:53:16 GMT", "version": "v2" } ]
2015-06-05
[ [ "Ablinger", "Jakob", "" ], [ "Blümlein", "Johannes", "" ], [ "Hasselhuhn", "Alexander", "" ], [ "Klein", "Sebastian", "" ], [ "Schneider", "Carsten", "" ], [ "Wißbrock", "Fabian", "" ] ]
3-loop diagrams of the ladder-type, which emerge for local quarkonic twist-2 operator matrix elements, are computed directly for general values of the Mellin variable $N$ using Appell-function representations and applying modern summation technologies provided by the package {\sf Sigma} and the method of hyperlogarithm...
hep-ph/9301207
null
O.W. Greenberg
Color, from baryon spectroscopy to qcd
14 pages, in LaTex, UMD 92-241
null
null
null
hep-ph
null
I review the discovery of the color degree of freedom in hadronic physics, and the developments which led from that discovery to the local gauge theory of color, quantum chromodynamics.
[ { "created": "Tue, 5 Jan 1993 13:58:00 GMT", "version": "v1" } ]
2007-05-23
[ [ "Greenberg", "O. W.", "" ] ]
I review the discovery of the color degree of freedom in hadronic physics, and the developments which led from that discovery to the local gauge theory of color, quantum chromodynamics.
1203.2585
Jose Luis Cortes
J. M. Carmona, J. L. Cortes, and D. Mazon
Uncertainties in Constraints from Pair Production on Superluminal Neutrinos
Final version sent to Phys. Rev. D for publication
Phys. Rev. D 85, 113001 (2012)
10.1103/PhysRevD.85.113001
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The use of the vacuum lepton pair production process ($\nu \to \nu e^- e^+ $), a viable reaction for superluminal neutrinos, to put constraints on Lorentz violations requires a dynamical framework. Different choices of dynamical matrix elements and modified dispersion relations for neutrinos, leading to numerical fac...
[ { "created": "Mon, 12 Mar 2012 18:54:54 GMT", "version": "v1" }, { "created": "Fri, 28 Sep 2012 12:18:24 GMT", "version": "v2" } ]
2012-10-01
[ [ "Carmona", "J. M.", "" ], [ "Cortes", "J. L.", "" ], [ "Mazon", "D.", "" ] ]
The use of the vacuum lepton pair production process ($\nu \to \nu e^- e^+ $), a viable reaction for superluminal neutrinos, to put constraints on Lorentz violations requires a dynamical framework. Different choices of dynamical matrix elements and modified dispersion relations for neutrinos, leading to numerical facto...
hep-ph/9512383
null
Howard Baer, Chih-hao Chen, Frank Paige and Xerxes Tata
Signals for Minimal Supergravity at the CERN Large Hadron Collider II: Multilepton Channels
35 page REVTEX file; 18 uuencoded EPS figures are included. Full resolution ones available via anonymous ftp at ftp://hep.fsu.edu/preprints/baer/xxx.uu; a complete PS file of text and figures is also available as FSUHEP951215.ps
Phys.Rev. D53 (1996) 6241-6264
10.1103/PhysRevD.53.6241
FSU-HEP-951215, UCD-95-45, UH-511-837-95
hep-ph
null
We use ISAJET to perform a detailed study of the multilepton signals expected from cascade decays of supersymmetric particle produced at the CERN LHC. Our analysis is performed within the framework of the minimal supergravity model with gauge coupling unification and radiative electroweak symmetry breaking. We deline...
[ { "created": "Wed, 20 Dec 1995 22:19:53 GMT", "version": "v1" } ]
2009-10-28
[ [ "Baer", "Howard", "" ], [ "Chen", "Chih-hao", "" ], [ "Paige", "Frank", "" ], [ "Tata", "Xerxes", "" ] ]
We use ISAJET to perform a detailed study of the multilepton signals expected from cascade decays of supersymmetric particle produced at the CERN LHC. Our analysis is performed within the framework of the minimal supergravity model with gauge coupling unification and radiative electroweak symmetry breaking. We delineat...
2401.04291
Ji Xu
Shu-Man Hu, Ji Xu and Shuai Zhao
Logarithmic moments of B-meson quasidistribution amplitude
7 pages, 2 figures, 1 table
null
null
null
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
It was demonstrated that the lattice simulation of $B$-meson light-cone distribution amplitude (LCDA) is feasible via the quasi-distribution amplitude (quasi-DA) in large momentum effective theory (LaMET). The structures of logarithmic moments (LMs) of $B$-meson quasi-DA is explored in this work. The one-loop results...
[ { "created": "Tue, 9 Jan 2024 00:08:04 GMT", "version": "v1" } ]
2024-01-10
[ [ "Hu", "Shu-Man", "" ], [ "Xu", "Ji", "" ], [ "Zhao", "Shuai", "" ] ]
It was demonstrated that the lattice simulation of $B$-meson light-cone distribution amplitude (LCDA) is feasible via the quasi-distribution amplitude (quasi-DA) in large momentum effective theory (LaMET). The structures of logarithmic moments (LMs) of $B$-meson quasi-DA is explored in this work. The one-loop results i...
1207.3252
Leandro Cieri
Leandro Cieri
Diphoton spectrum in the mass range 120-140 GeV at the LHC
5 pages, 2 figures. Invited talk. To appear in Proceedings of Rencontres de Moriond, QCD and High Energy Interactions, La Thuile, March 10-17, 2012. Acknowledgments added
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider direct diphoton production in hadron collisions. We compute the next-to-next-to-leading order (NNLO) QCD radiative corrections at the fully-differential level. Our calculation uses the q_T subtraction formalism and it is implemented in a parton level Monte Carlo program, which allows the user to apply arb...
[ { "created": "Fri, 13 Jul 2012 14:08:34 GMT", "version": "v1" }, { "created": "Fri, 14 Sep 2012 09:48:03 GMT", "version": "v2" } ]
2012-09-17
[ [ "Cieri", "Leandro", "" ] ]
We consider direct diphoton production in hadron collisions. We compute the next-to-next-to-leading order (NNLO) QCD radiative corrections at the fully-differential level. Our calculation uses the q_T subtraction formalism and it is implemented in a parton level Monte Carlo program, which allows the user to apply arbit...
2408.03656
Amandip De
Amit Adhikary, Rahool Kumar Barman, Biplob Bhattacherjee, Amandip De, Rohini M. Godbole
Exploring the Singlino-dominated Thermal Neutralino Dark Matter in the $Z_3$ invariant NMSSM
31 pages, 17 figures, 4 tables
null
null
null
hep-ph hep-ex
http://creativecommons.org/publicdomain/zero/1.0/
We examine the parameter space of the Next to Minimal Supersymmetric Standard Model (NMSSM) with Singlino-dominated neutralino $\widetilde\chi_1^0$ as the lightest supersymmetric particle (LSP). Our study focuses on identifying the regions within this parameter space that produce a thermal relic abundance of $\wideti...
[ { "created": "Wed, 7 Aug 2024 09:50:42 GMT", "version": "v1" } ]
2024-08-08
[ [ "Adhikary", "Amit", "" ], [ "Barman", "Rahool Kumar", "" ], [ "Bhattacherjee", "Biplob", "" ], [ "De", "Amandip", "" ], [ "Godbole", "Rohini M.", "" ] ]
We examine the parameter space of the Next to Minimal Supersymmetric Standard Model (NMSSM) with Singlino-dominated neutralino $\widetilde\chi_1^0$ as the lightest supersymmetric particle (LSP). Our study focuses on identifying the regions within this parameter space that produce a thermal relic abundance of $\widetild...
2203.05217
Chien Yeah Seng
Chien-Yeah Seng, Daniel Galviz, Mikhail Gorchtein, Ulf-G. Mei{\ss}ner
Complete theory of radiative corrections to $K_{\ell 3}$ decays and the $V_{us}$ update
Version accepted by JHEP, including a slight change of the title
null
10.1007/JHEP07(2022)071
null
hep-ph hep-ex hep-lat hep-th nucl-ex
http://creativecommons.org/licenses/by/4.0/
We fill up the missing piece in our own re-analysis of the long-distance electromagnetic radiative corrections to semileptonic kaon decays by performing a rigorous study in the $K\rightarrow\pi\mu^+\nu_\mu(\gamma)$ channels. With appropriate experimental and lattice inputs, we achieve a precision level of $10^{-4}$ i...
[ { "created": "Thu, 10 Mar 2022 07:49:41 GMT", "version": "v1" }, { "created": "Tue, 12 Jul 2022 07:51:00 GMT", "version": "v2" } ]
2022-07-18
[ [ "Seng", "Chien-Yeah", "" ], [ "Galviz", "Daniel", "" ], [ "Gorchtein", "Mikhail", "" ], [ "Meißner", "Ulf-G.", "" ] ]
We fill up the missing piece in our own re-analysis of the long-distance electromagnetic radiative corrections to semileptonic kaon decays by performing a rigorous study in the $K\rightarrow\pi\mu^+\nu_\mu(\gamma)$ channels. With appropriate experimental and lattice inputs, we achieve a precision level of $10^{-4}$ in ...
0804.2090
Pedro Bicudo
P. Bicudo
The hexaquark-flavoured antiK-N-N state computed microscopically with a clusterized octoquark
4 pages, 4 figures, talk presented at MENU 2007 11th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon September10-14, 2007, IKP, Forschungzentrum Julich
ECONFC070910:131,2007
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The possible production processes of the antiK-NN are explored. We derive microscopically, with the RGM, the microscopic derivation of the K-N and antiK-N interactions. We discuss the binding or not binding of the different antiK-N and antiK-NN systems. When binding occurs, the respective decay widths are also discus...
[ { "created": "Sun, 13 Apr 2008 22:40:09 GMT", "version": "v1" } ]
2008-11-26
[ [ "Bicudo", "P.", "" ] ]
The possible production processes of the antiK-NN are explored. We derive microscopically, with the RGM, the microscopic derivation of the K-N and antiK-N interactions. We discuss the binding or not binding of the different antiK-N and antiK-NN systems. When binding occurs, the respective decay widths are also discusse...
1401.0832
Vladyslav Pauk
Vladyslav Pauk, Marc Vanderhaeghen
Single meson contributions to the muon's anomalous magnetic moment
13 pages, 3 figures
null
10.1140/epjc/s10052-014-3008-y
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We develop the formalism to provide an improved estimate for the hadronic light-by-light correction to the muon's anomalous magnetic moment a_{\mu}, by considering single meson contributions beyond the leading pseudo-scalar mesons. We incorporate available experimental input as well as constraints from light-by-light...
[ { "created": "Sat, 4 Jan 2014 17:40:40 GMT", "version": "v1" } ]
2015-06-18
[ [ "Pauk", "Vladyslav", "" ], [ "Vanderhaeghen", "Marc", "" ] ]
We develop the formalism to provide an improved estimate for the hadronic light-by-light correction to the muon's anomalous magnetic moment a_{\mu}, by considering single meson contributions beyond the leading pseudo-scalar mesons. We incorporate available experimental input as well as constraints from light-by-light s...
hep-ph/0601119
Andre Peshier
A. Peshier
Running coupling and screening in the (s)QGP
extended discussion, results unchanged
null
null
null
hep-ph
null
Emphasizing the importance of renormalization in the context of thermal field theory in general, it is pointed out that the Debye mass in the hot quark gluon plasma is determined by the coupling at the scale $m_D$, not $T$ as commonly presumed. The mended result agrees quantitatively with lattice QCD calculations in ...
[ { "created": "Mon, 16 Jan 2006 20:55:57 GMT", "version": "v1" }, { "created": "Fri, 27 Jan 2006 16:50:36 GMT", "version": "v2" } ]
2007-05-23
[ [ "Peshier", "A.", "" ] ]
Emphasizing the importance of renormalization in the context of thermal field theory in general, it is pointed out that the Debye mass in the hot quark gluon plasma is determined by the coupling at the scale $m_D$, not $T$ as commonly presumed. The mended result agrees quantitatively with lattice QCD calculations in th...
1705.01274
Newton Nath
Srubabati Goswami, Newton Nath
Implications of the latest NO$ \nu $A results
8 pages, 6 figures, 2 tables
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the implications of the latest NO$ \nu $A results on the measurement of $\nu_\mu - \nu_e$ conversions. From a combined analysis of the disappearance and appearance data, the preferred solutions reported by NO$ \nu $A are normal hierarchy (NH) with two degenerate best-fit points one in the lower octant (LO)...
[ { "created": "Wed, 3 May 2017 07:09:30 GMT", "version": "v1" } ]
2017-05-04
[ [ "Goswami", "Srubabati", "" ], [ "Nath", "Newton", "" ] ]
We discuss the implications of the latest NO$ \nu $A results on the measurement of $\nu_\mu - \nu_e$ conversions. From a combined analysis of the disappearance and appearance data, the preferred solutions reported by NO$ \nu $A are normal hierarchy (NH) with two degenerate best-fit points one in the lower octant (LO) a...
hep-ph/9802393
Asmaa Abada
As. Abada, O. P\`ene and J. Rodriguez-Quintero
Finite-size effects on multibody neutrino exchange
Latex file (Revtex), 34 pages, 8 postscripted figures
Phys. Rev. D 58, 073001 (1998)
10.1103/PhysRevD.58.073001
CERN-TH/98-40-FAMNSE-97/20-LPTHE-Orsay-97/69
hep-ph astro-ph
null
The effect of multibody massless neutrino exchanges between neutrons inside a finite-size neutron star is studied. We use an effective Lagrangian, which incorporates the effect of the neutrons on the neutrinos. Following Schwinger, it is shown that the total interaction energy density is computed by comparing the zer...
[ { "created": "Mon, 23 Feb 1998 15:05:08 GMT", "version": "v1" } ]
2016-08-25
[ [ "Abada", "As.", "" ], [ "Pène", "O.", "" ], [ "Rodriguez-Quintero", "J.", "" ] ]
The effect of multibody massless neutrino exchanges between neutrons inside a finite-size neutron star is studied. We use an effective Lagrangian, which incorporates the effect of the neutrons on the neutrinos. Following Schwinger, it is shown that the total interaction energy density is computed by comparing the zero ...
hep-ph/0112283
Gian Paolo Vacca
J. Bartels, D. Colferai, G.P. Vacca
The NLO Jet Vertex for Mueller-Navelet and Forward Jets: the Quark Part
28 pages, 8 eps figures
Eur.Phys.J.C24:83-99,2002
10.1007/s100520200919
null
hep-ph
null
We calculate the next-to-leading corrections to the jet vertex which is relevant for the Mueller-Navelet-jets production in p-pbar collisions and for the forward jet cross section in e-p collisions. In this first part we present the results of the vertex for an incoming quark. Particular emphasis is given to the sepa...
[ { "created": "Thu, 20 Dec 2001 20:40:53 GMT", "version": "v1" } ]
2011-09-13
[ [ "Bartels", "J.", "" ], [ "Colferai", "D.", "" ], [ "Vacca", "G. P.", "" ] ]
We calculate the next-to-leading corrections to the jet vertex which is relevant for the Mueller-Navelet-jets production in p-pbar collisions and for the forward jet cross section in e-p collisions. In this first part we present the results of the vertex for an incoming quark. Particular emphasis is given to the separa...
1309.7351
Nausheen Shah
Aaron Pierce, Nausheen R. Shah, and Katherine Freese
Neutralino Dark Matter with Light Staus
Improved discussion of vacuum stability constraints. Updated references. 25 pages, 4 figures
null
null
MCTP-13-30
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In spite of rapid experimental progress, windows for light superparticles remain. One possibility is a ~100 GeV tau slepton whose t-channel exchange can give the correct thermal relic abundance for a relatively light neutralino. We pedagogically review how this region arises and identify two distinct scenarios that w...
[ { "created": "Fri, 27 Sep 2013 20:00:08 GMT", "version": "v1" }, { "created": "Sun, 13 Oct 2013 19:49:42 GMT", "version": "v2" } ]
2013-10-18
[ [ "Pierce", "Aaron", "" ], [ "Shah", "Nausheen R.", "" ], [ "Freese", "Katherine", "" ] ]
In spite of rapid experimental progress, windows for light superparticles remain. One possibility is a ~100 GeV tau slepton whose t-channel exchange can give the correct thermal relic abundance for a relatively light neutralino. We pedagogically review how this region arises and identify two distinct scenarios that wil...
0907.2461
Andreas Crivellin
Andreas Crivellin
Effects of right-handed charged currents on the determinations of |V_ub| and |V_cb|
5 pages, 5 figures
Phys.Rev.D81:031301,2010
10.1103/PhysRevD.81.031301
TTP09-24
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the effect of a right-handed coupling of quarks to the W-boson on the measurements of |V_ub| and |V_cb|. It is shown that such a coupling can remove the discrepancies between the determinations of |V_ub| from B\to\pi\ell\nu, B^+\to\tau^+ \nu and B\to X_u\ell\nu. Further the measurements of |V_cb| from B\to D...
[ { "created": "Tue, 14 Jul 2009 22:07:15 GMT", "version": "v1" }, { "created": "Wed, 10 Feb 2010 18:16:48 GMT", "version": "v2" } ]
2010-04-06
[ [ "Crivellin", "Andreas", "" ] ]
We study the effect of a right-handed coupling of quarks to the W-boson on the measurements of |V_ub| and |V_cb|. It is shown that such a coupling can remove the discrepancies between the determinations of |V_ub| from B\to\pi\ell\nu, B^+\to\tau^+ \nu and B\to X_u\ell\nu. Further the measurements of |V_cb| from B\to D^*...
1508.07178
Gernot Eichmann
Gernot Eichmann, Christian S. Fischer, Walter Heupel
The light scalar mesons as tetraquarks
7 pages, 4 figures; version accepted by PLB
null
10.1016/j.physletb.2015.12.036
null
hep-ph hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a numerical solution of the four-quark Bethe-Salpeter equation for ground-state scalar tetraquarks with J^PC = 0^++. We find that the four-body equation dynamically generates pseudoscalar-meson poles in the Bethe-Salpeter amplitude. The resulting tetraquarks are genuine four-quark states that are dominated...
[ { "created": "Fri, 28 Aug 2015 12:21:47 GMT", "version": "v1" }, { "created": "Fri, 18 Dec 2015 16:19:34 GMT", "version": "v2" } ]
2015-12-21
[ [ "Eichmann", "Gernot", "" ], [ "Fischer", "Christian S.", "" ], [ "Heupel", "Walter", "" ] ]
We present a numerical solution of the four-quark Bethe-Salpeter equation for ground-state scalar tetraquarks with J^PC = 0^++. We find that the four-body equation dynamically generates pseudoscalar-meson poles in the Bethe-Salpeter amplitude. The resulting tetraquarks are genuine four-quark states that are dominated b...
1303.6433
Peter Kroll
P. Kroll
A set of generalized parton distributions
6 pages, 2 figures, latex with cimento.cls talk presented at QCD-N12, Bilbao, October 2012
null
10.1393/ncc/i2013-11583-5
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The information about generalized parton distributions (GPDs) extracted from exclusive meson leptoproduction within the handbag approach is summarized. Details are only discussed for the GPD E and the transversity ones. It is also commented on results for deep virtual Compton scattering evaluated from these GPDs
[ { "created": "Tue, 26 Mar 2013 10:57:09 GMT", "version": "v1" } ]
2022-03-02
[ [ "Kroll", "P.", "" ] ]
The information about generalized parton distributions (GPDs) extracted from exclusive meson leptoproduction within the handbag approach is summarized. Details are only discussed for the GPD E and the transversity ones. It is also commented on results for deep virtual Compton scattering evaluated from these GPDs
1311.1837
Joel Jones-Perez
Joel Jones-Perez
Split-Family SUSY, U(2)^5 Flavour Symmetry and Neutrino Physics
9 pages, 3 figures; v2: improved discussion of LFV processes, results unchanged; v3: Minor changes, version accepted for publication in EPJ C
null
10.1140/epjc/s10052-014-2772-z
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In split-family SUSY, one can use a U(2)^3 symmetry to protect flavour observables in the quark sector from SUSY contributions. However, attempts to extend this procedure to the lepton sector by using an analogous U(2)^5 symmetry fail to reproduce the neutrino data without introducing some form of fine-tuning. In thi...
[ { "created": "Thu, 7 Nov 2013 22:06:17 GMT", "version": "v1" }, { "created": "Mon, 18 Nov 2013 18:25:56 GMT", "version": "v2" }, { "created": "Thu, 6 Feb 2014 10:15:48 GMT", "version": "v3" } ]
2015-06-17
[ [ "Jones-Perez", "Joel", "" ] ]
In split-family SUSY, one can use a U(2)^3 symmetry to protect flavour observables in the quark sector from SUSY contributions. However, attempts to extend this procedure to the lepton sector by using an analogous U(2)^5 symmetry fail to reproduce the neutrino data without introducing some form of fine-tuning. In this ...
hep-ph/9602372
Valera Lyubovitskij
M.A.Ivanov (PSI, Villigen & JINR, Dubna), M.P.Locher (PSI, Villigen), V.E.Lyubovitskij (PSI, Villigen & JINR, Dubna & Tomsk U.)
Electromagnetic form factors of nucleons in a relativistic three-quark model
23 pages, Postscript File, 7 Figures, 3 Tables
FewBodySyst.21:131,1996
10.1007/s006010050044
PSI-PR-96-08
hep-ph
null
We report the calculation of electromagnetic form factors of nucleons within a relativistic three-quark model with Gaussian shape for the nucleon-quark vertex. The allowed region for two adjustable parameters, the range parameter $\Lambda_N$ in the Gaussian and the constituent quark mass $m_q$, is obtained from fitti...
[ { "created": "Thu, 22 Feb 1996 21:09:52 GMT", "version": "v1" } ]
2008-11-26
[ [ "Ivanov", "M. A.", "", "PSI, Villigen & JINR, Dubna" ], [ "Locher", "M. P.", "", "PSI, Villigen" ], [ "Lyubovitskij", "V. E.", "", "PSI, Villigen & JINR, Dubna & Tomsk U." ] ]
We report the calculation of electromagnetic form factors of nucleons within a relativistic three-quark model with Gaussian shape for the nucleon-quark vertex. The allowed region for two adjustable parameters, the range parameter $\Lambda_N$ in the Gaussian and the constituent quark mass $m_q$, is obtained from fitting...
1111.1551
Fabian Bach
Fabian Bach, Thorsten Ohl (W\"urzburg University)
Discovery Prospects of an Almost Fermiophobic W' in the Three-Site Higgsless Model at the LHC
19 pages Latex. Accepted for publication
Phys. Rev. D 85, 015002 (2012)
10.1103/PhysRevD.85.015002
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In extensions of the Standard Model with compactified extra dimensions, perturbative unitarity of the longitudinal gauge bosons is maintained through the contribution of heavy KK excitations of the gauge fields, without the necessity of introducing a Higgs field. The Three-Site Higgsless Model represents a minimal ap...
[ { "created": "Mon, 7 Nov 2011 11:44:28 GMT", "version": "v1" }, { "created": "Fri, 9 Dec 2011 16:11:40 GMT", "version": "v2" } ]
2012-01-10
[ [ "Bach", "Fabian", "", "Würzburg University" ], [ "Ohl", "Thorsten", "", "Würzburg University" ] ]
In extensions of the Standard Model with compactified extra dimensions, perturbative unitarity of the longitudinal gauge bosons is maintained through the contribution of heavy KK excitations of the gauge fields, without the necessity of introducing a Higgs field. The Three-Site Higgsless Model represents a minimal appr...
0904.1252
De-Min Li
De-Min Li and En Wang
Canonical interpretation of the $\eta_2(1870)$
18 pages,4 figures, version accepted by Eur. Phys. J. C
Eur.Phys.J.C63:297-304,2009
10.1140/epjc/s10052-009-1106-z
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We argue that the mass, production, total decay width, and decay pattern of the $\eta_2(1870)$ do not appear to contradict with the picture of it being the conventional $2 ^1D_2$ $q\bar{q}$ state. The possibility of the $\eta_2(1870)$ being a mixture of the conventional $q\bar{q}$ and the hybrid is also discussed.
[ { "created": "Wed, 8 Apr 2009 15:17:49 GMT", "version": "v1" }, { "created": "Wed, 10 Jun 2009 10:45:15 GMT", "version": "v2" }, { "created": "Fri, 10 Jul 2009 08:40:39 GMT", "version": "v3" } ]
2009-11-19
[ [ "Li", "De-Min", "" ], [ "Wang", "En", "" ] ]
We argue that the mass, production, total decay width, and decay pattern of the $\eta_2(1870)$ do not appear to contradict with the picture of it being the conventional $2 ^1D_2$ $q\bar{q}$ state. The possibility of the $\eta_2(1870)$ being a mixture of the conventional $q\bar{q}$ and the hybrid is also discussed.
1606.06134
Federico Alberto Ceccopieri
Federico Alberto Ceccopieri
Single-diffractive Drell-Yan pair production at the LHC
22 pages, 2 tables, 9 figures. Typos corrected, 3 References added
null
10.1140/epjc/s10052-017-4626-y
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present predictions for single-diffractive low-mass Drell-Yan pair production in $pp$ collisions at the LHC at $\sqrt{s}=13$ TeV. Predictions are obtained adopting a factorised form for the relevant cross sections and are based on a new set of diffractive parton distributions resulting from the QCD analysis of com...
[ { "created": "Mon, 20 Jun 2016 14:22:19 GMT", "version": "v1" }, { "created": "Wed, 24 Aug 2016 09:13:18 GMT", "version": "v2" } ]
2017-03-08
[ [ "Ceccopieri", "Federico Alberto", "" ] ]
We present predictions for single-diffractive low-mass Drell-Yan pair production in $pp$ collisions at the LHC at $\sqrt{s}=13$ TeV. Predictions are obtained adopting a factorised form for the relevant cross sections and are based on a new set of diffractive parton distributions resulting from the QCD analysis of combi...
2211.08946
Zhongyu Wang
Zhong-Yu Wang, Si-Qiang Luo, Zhi-Feng Sun, C. W. Xiao, Xiang Liu
Study of the resonance contributions in the $\Xi_{b}^{-} \rightarrow pK^{-}K^{-}$ decay
18 pages, 6 figures, 3 tables, published in Phys. Rev. D
Phys. Rev. D 106, 096026 (2022)
10.1103/PhysRevD.106.096026
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The decay process $\Xi_{b}^{-} \rightarrow pK^{-}K^{-}$ is studied with the final state interaction approach by considering the contributions from the $S$-wave meson-baryon interactions, and also the intermediate state $\Lambda(1520)$ in the $D$-wave. The low-lying resonances $\Lambda(1405)$ and $\Lambda(1670)$ have ...
[ { "created": "Wed, 16 Nov 2022 14:49:49 GMT", "version": "v1" }, { "created": "Wed, 30 Nov 2022 11:27:05 GMT", "version": "v2" } ]
2022-12-01
[ [ "Wang", "Zhong-Yu", "" ], [ "Luo", "Si-Qiang", "" ], [ "Sun", "Zhi-Feng", "" ], [ "Xiao", "C. W.", "" ], [ "Liu", "Xiang", "" ] ]
The decay process $\Xi_{b}^{-} \rightarrow pK^{-}K^{-}$ is studied with the final state interaction approach by considering the contributions from the $S$-wave meson-baryon interactions, and also the intermediate state $\Lambda(1520)$ in the $D$-wave. The low-lying resonances $\Lambda(1405)$ and $\Lambda(1670)$ have si...
2302.11542
Boris Blankleider
A. N. Kvinikhidze and B. Blankleider
Unified tetraquark equations
23 pages, 6 figures
null
10.1103/PhysRevD.107.094014
null
hep-ph nucl-th
http://creativecommons.org/licenses/by/4.0/
We derive covariant equations describing the tetraquark in terms of an admixture of two-body states $D\bar D$ (diquark-antidiquark), $MM$ (meson-meson), and three-body-like states $q\bar q (T_{q\bar q})$, $q q (T_{\bar q\bar q})$, and $\bar q\bar q (T_{qq})$ where two of the quarks are spectators while the other two ...
[ { "created": "Sat, 18 Feb 2023 11:00:00 GMT", "version": "v1" } ]
2023-05-24
[ [ "Kvinikhidze", "A. N.", "" ], [ "Blankleider", "B.", "" ] ]
We derive covariant equations describing the tetraquark in terms of an admixture of two-body states $D\bar D$ (diquark-antidiquark), $MM$ (meson-meson), and three-body-like states $q\bar q (T_{q\bar q})$, $q q (T_{\bar q\bar q})$, and $\bar q\bar q (T_{qq})$ where two of the quarks are spectators while the other two ar...
1012.4279
Jens Braun
Jens Braun, Christian S. Fischer, Holger Gies
Beyond Miransky Scaling
16 pages, 8 figures
Phys.Rev.D84:034045,2011
10.1103/PhysRevD.84.034045
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the scaling behavior of physical observables in strongly-flavored asymptotically free gauge theories, such as many-flavor QCD. Such theories approach a quantum critical point when the number of fermion flavors is increased. It is well-known that physical observables at this quantum critical point exhibit an ...
[ { "created": "Mon, 20 Dec 2010 10:49:48 GMT", "version": "v1" } ]
2011-09-29
[ [ "Braun", "Jens", "" ], [ "Fischer", "Christian S.", "" ], [ "Gies", "Holger", "" ] ]
We study the scaling behavior of physical observables in strongly-flavored asymptotically free gauge theories, such as many-flavor QCD. Such theories approach a quantum critical point when the number of fermion flavors is increased. It is well-known that physical observables at this quantum critical point exhibit an ex...
2401.08751
Claudio Severi
Fabio Maltoni and Claudio Severi and Simone Tentori and Eleni Vryonidou
Quantum detection of new physics in top-quark pair production at the LHC
23 pages plus appendix, 12 figures. Version accepted for publication
null
null
null
hep-ph
http://creativecommons.org/licenses/by-nc-nd/4.0/
The recent observation of entanglement between top and anti-top quarks at the LHC opens the way to interpreting collider data with quantum information tools. In this work we investigate the relevance of quantum observables in searches of new physics. To this aim, we study spin correlations of top/anti-top pairs origi...
[ { "created": "Tue, 16 Jan 2024 19:00:01 GMT", "version": "v1" }, { "created": "Tue, 19 Mar 2024 20:15:06 GMT", "version": "v2" } ]
2024-03-21
[ [ "Maltoni", "Fabio", "" ], [ "Severi", "Claudio", "" ], [ "Tentori", "Simone", "" ], [ "Vryonidou", "Eleni", "" ] ]
The recent observation of entanglement between top and anti-top quarks at the LHC opens the way to interpreting collider data with quantum information tools. In this work we investigate the relevance of quantum observables in searches of new physics. To this aim, we study spin correlations of top/anti-top pairs origina...
2311.06975
Milena Piotrowska
Milena Piotrowska, Francesco Giacosa
A QFT scalar toy model analogous to positronium and pion decays
6 pages, 4 figures, 2 tables, Prepared for the proceedings of the 18th Symposium on new trends in Nuclear and Medical Physics, Cracow, Poland, 18-20 October 2023
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the framework of a scalar QFT, we evaluate the decay of an initial massive state into two massless particles through a triangle-shaped diagram in which virtual fields propagate. Under certain conditions, the decaying state can be seen as a bound state, thus it is analogous to the neutral pion (quark-antiquark pair...
[ { "created": "Sun, 12 Nov 2023 22:27:58 GMT", "version": "v1" } ]
2023-11-14
[ [ "Piotrowska", "Milena", "" ], [ "Giacosa", "Francesco", "" ] ]
In the framework of a scalar QFT, we evaluate the decay of an initial massive state into two massless particles through a triangle-shaped diagram in which virtual fields propagate. Under certain conditions, the decaying state can be seen as a bound state, thus it is analogous to the neutral pion (quark-antiquark pair) ...
hep-ph/0004036
Guo Hong Wu
Guo-Hong Wu
A New Approach to Texture Analysis of Quark Mass Matrices
4 pages, talk presented at PASCOS'99, Lake Tahoe, California, December 10-16, 1999
null
10.1142/9789812792433_0032
null
hep-ph
null
The triangular basis is proposed as an efficient way of analyzing general quark mass matrices. Applying the method to hermitian hierarchical matrices with five texture zeros, analytic predictions for quark mixing can be readily obtained. One unique texture pair is found most favorable with present data. Some remarks ...
[ { "created": "Wed, 5 Apr 2000 06:15:19 GMT", "version": "v1" } ]
2016-11-03
[ [ "Wu", "Guo-Hong", "" ] ]
The triangular basis is proposed as an efficient way of analyzing general quark mass matrices. Applying the method to hermitian hierarchical matrices with five texture zeros, analytic predictions for quark mixing can be readily obtained. One unique texture pair is found most favorable with present data. Some remarks ar...
hep-ph/9812406
null
U. A. Yajnik (IIT, Bombay) Hatem Widyan, Shobhit Mahajan, Amitabha Mukherjee (Delhi University) and Debajyoti Choudhari (Mehta Research Institute, Allahabad)
Topological Defects in the Left-Right Symmetric Model and their Relevance to Cosmology
29 pages, LaTex file with 6 postscript figures
Phys.Rev.D59:103508,1999
10.1103/PhysRevD.59.103508
null
hep-ph
null
It is shown that the minimal left-right symmetric model admits cosmic string and domain wall solutions. The cosmic strings arise when the SU(2)_R is broken and can either be destabilized at the electroweak scale or remain stable through the subsequent breakdown to U(1)_{EM}. The strings carry zero modes of the neutri...
[ { "created": "Thu, 17 Dec 1998 07:32:55 GMT", "version": "v1" } ]
2014-11-17
[ [ "Yajnik", "U. A.", "", "IIT, Bombay" ], [ "Widyan", "Hatem", "", "Delhi University" ], [ "Mahajan", "Shobhit", "", "Delhi University" ], [ "Mukherjee", "Amitabha", "", "Delhi University" ], [ "Choudhari", "Debajyoti", "", ...
It is shown that the minimal left-right symmetric model admits cosmic string and domain wall solutions. The cosmic strings arise when the SU(2)_R is broken and can either be destabilized at the electroweak scale or remain stable through the subsequent breakdown to U(1)_{EM}. The strings carry zero modes of the neutrino...
1010.5600
Piotr Zenczykowski
Piotr Zenczykowski
Penguin amplitudes in B^+ to pi^+ K^*0, K^+ \bar{K}^*0 decays
9 pages, 2 figures
Acta Phys.Polon.B42:1267-1275,2011
10.5506/APhysPolB.42.1267
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The question of the relative size of two independent penguin amplitudes is studied using the data on the B^+ to pi^+ K^*0, and B^+ to K^+ \bar{K}^*0 decays. Our discussion involves a Regge-phenomenology-based estimate of SU(3) breaking in the final quark-pair-creating hadronization process. The results are in agreeme...
[ { "created": "Wed, 27 Oct 2010 08:16:04 GMT", "version": "v1" } ]
2011-06-28
[ [ "Zenczykowski", "Piotr", "" ] ]
The question of the relative size of two independent penguin amplitudes is studied using the data on the B^+ to pi^+ K^*0, and B^+ to K^+ \bar{K}^*0 decays. Our discussion involves a Regge-phenomenology-based estimate of SU(3) breaking in the final quark-pair-creating hadronization process. The results are in agreement...
hep-ph/9706376
Mikkel Johnson
Mikkel B. Johnson (LANL), Leonard S. Kisslinger (Carnegie Mellon University)
Hadronic Couplings Via QCD Sum Rules Using Three-Point Functions: Vacuum Susceptibilities
Latex file, 3 Figs
Phys.Rev. D57 (1998) 2847-2852
10.1103/PhysRevD.57.2847
LA-UR-96-2651
hep-ph
null
We develop a three-point formalism to treat vacuum susceptibilities used for the coupling of currents to hadrons within the method of QCD Sum Rules. By introducing nonlocal condensates, with the space-time structure taken from fits to experimental parton distrbutions, we show that one can treat hadronic coupling at z...
[ { "created": "Mon, 16 Jun 1997 23:29:48 GMT", "version": "v1" } ]
2009-10-30
[ [ "Johnson", "Mikkel B.", "", "LANL" ], [ "Kisslinger", "Leonard S.", "", "Carnegie Mellon\n University" ] ]
We develop a three-point formalism to treat vacuum susceptibilities used for the coupling of currents to hadrons within the method of QCD Sum Rules. By introducing nonlocal condensates, with the space-time structure taken from fits to experimental parton distrbutions, we show that one can treat hadronic coupling at zer...
1505.05619
Hua-Xing Chen
Wei Chen, T. G. Steele, Hua-Xing Chen and Shi-Lin Zhu
Mass spectra of Zc and Zb exotic states as hadron molecules
15 pages, 3 figures, 2 tables, accepted by PRD
Phys. Rev. D 92, 054002 (2015)
10.1103/PhysRevD.92.054002
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We construct charmonium-like and bottomonium-like molecular interpolating currents with quantum numbers J(PC)=1(+-) in a systematic way, including both color singlet-singlet and color octet-octet structures. Using these interpolating currents, we calculate two-point correlation functions and perform QCD sum rule anal...
[ { "created": "Thu, 21 May 2015 07:07:06 GMT", "version": "v1" }, { "created": "Thu, 27 Aug 2015 00:59:17 GMT", "version": "v2" } ]
2015-09-07
[ [ "Chen", "Wei", "" ], [ "Steele", "T. G.", "" ], [ "Chen", "Hua-Xing", "" ], [ "Zhu", "Shi-Lin", "" ] ]
We construct charmonium-like and bottomonium-like molecular interpolating currents with quantum numbers J(PC)=1(+-) in a systematic way, including both color singlet-singlet and color octet-octet structures. Using these interpolating currents, we calculate two-point correlation functions and perform QCD sum rule analys...
1207.0990
Kai Wang
Jiwei Ke, Ming-Xing Luo, Lian-You Shan, Kai Wang, Liucheng Wang
Searching SUSY Leptonic Partner at the CERN LHC
18 pages, 8 figures, version accepted by Physics Letter B
null
10.1016/j.physletb.2012.11.073
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivated by the observed excess of the di-photon signal in Higgs searches, $\sigma_{\gamma\gamma}/\sigma_{\rm SM}\simeq 1.5$, we argue that models with enhanced $\Gamma(h\to \gamma\gamma)$ alone are the most favorable scenarios when the latest LHC/Tevatron results are all taken into account. We study the phenomenolo...
[ { "created": "Wed, 4 Jul 2012 14:19:22 GMT", "version": "v1" }, { "created": "Sun, 11 Nov 2012 14:54:40 GMT", "version": "v2" } ]
2015-06-05
[ [ "Ke", "Jiwei", "" ], [ "Luo", "Ming-Xing", "" ], [ "Shan", "Lian-You", "" ], [ "Wang", "Kai", "" ], [ "Wang", "Liucheng", "" ] ]
Motivated by the observed excess of the di-photon signal in Higgs searches, $\sigma_{\gamma\gamma}/\sigma_{\rm SM}\simeq 1.5$, we argue that models with enhanced $\Gamma(h\to \gamma\gamma)$ alone are the most favorable scenarios when the latest LHC/Tevatron results are all taken into account. We study the phenomenology...
hep-ph/0111260
Hans-Christian Pauli
A. Krassnigg (InstTheorPhys, Univ Graz, Austria) and Hans-Christian Pauli (MPI Kernphysik, Heidelberg)
On helicity and spin on the light cone
LaTeX2e, 5 pages, 11 references. to be published in Nucl. Phys. B (Proc. Suppl.) Talk presented at the Workshop "Light-cone Physics: Particles and Strings" at ECT* in Trento, Sep 3-11, 2001
Nucl.Phys.Proc.Suppl. 108 (2002) 251-255
10.1016/S0920-5632(02)01338-5
null
hep-ph
null
Starting from a one-body front-form equation with Lepage-Brodsky spinors we show, with a fair amount of new technology, how an integral equation in standard momentum space with Bjorken-Drell spinors can be obtained. The integral equation decouples for singlets and triplets.
[ { "created": "Wed, 21 Nov 2001 13:43:45 GMT", "version": "v1" } ]
2009-11-07
[ [ "Krassnigg", "A.", "", "InstTheorPhys, Univ Graz, Austria" ], [ "Pauli", "Hans-Christian", "", "MPI Kernphysik, Heidelberg" ] ]
Starting from a one-body front-form equation with Lepage-Brodsky spinors we show, with a fair amount of new technology, how an integral equation in standard momentum space with Bjorken-Drell spinors can be obtained. The integral equation decouples for singlets and triplets.
1305.1846
James Maxin
Tianjun Li, James A. Maxin, Dimitri V. Nanopoulos, and Joel W. Walker
No-Scale F-SU(5) in the Light of LHC, Planck and XENON
Journal of Physics G Version, 11 pages, 5 figures, 1 table
J. Phys. G: Nucl. Part. Phys. 40 (2013) 115002
10.1088/0954-3899/40/11/115002
ACT-4-13, MIFPA-13-17
hep-ph astro-ph.CO hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We take stock of the No-Scale F-SU(5) model's experimental status and prospects in the light of results from LHC, Planck, and XENON100. Given that no conclusive evidence for light Supersymmetry (SUSY) has emerged from the 7, 8 TeV collider searches, the present work is focused on exploring and clarifying the precise ...
[ { "created": "Wed, 8 May 2013 15:17:45 GMT", "version": "v1" }, { "created": "Tue, 17 Sep 2013 13:57:46 GMT", "version": "v2" } ]
2013-10-15
[ [ "Li", "Tianjun", "" ], [ "Maxin", "James A.", "" ], [ "Nanopoulos", "Dimitri V.", "" ], [ "Walker", "Joel W.", "" ] ]
We take stock of the No-Scale F-SU(5) model's experimental status and prospects in the light of results from LHC, Planck, and XENON100. Given that no conclusive evidence for light Supersymmetry (SUSY) has emerged from the 7, 8 TeV collider searches, the present work is focused on exploring and clarifying the precise na...
hep-ph/9803261
Robert Foot
M. Collie and R. Foot
Neutrino masses in the SU(5)xSU(5)' mirror symmetric model
about 8 pages, minor changes
Phys.Lett. B432 (1998) 134-138
10.1016/S0370-2693(98)00637-6
UM-P-98/13
hep-ph
null
Motivated by the atmospheric and solar neutrino anomalies, we study neutrino masses in a parity invariant SU(5)xSU(5)' grand unified model. Constraints from photon-mirror photon kinetic mixing are discussed.
[ { "created": "Fri, 6 Mar 1998 03:41:26 GMT", "version": "v1" }, { "created": "Thu, 10 Sep 1998 05:31:41 GMT", "version": "v2" } ]
2009-10-31
[ [ "Collie", "M.", "" ], [ "Foot", "R.", "" ] ]
Motivated by the atmospheric and solar neutrino anomalies, we study neutrino masses in a parity invariant SU(5)xSU(5)' grand unified model. Constraints from photon-mirror photon kinetic mixing are discussed.
2403.20315
Federico Silvetti
Federico Silvetti
Resummation phenomenology and PDF determination for precision QCD at the LHC
185 pages, 25 figures, PhD thesis, Supervisor: M. Bonvini
null
null
null
hep-ph
http://creativecommons.org/licenses/by-nc-sa/4.0/
With the ongoing Run 3 of the LHC and its upcoming High-Luminosity upgrade, there is a growing need to study observables with high precision both experimentally and theoretically. To increase precision on the theory side, improvements of fixed-order perturbative predictions, resummation of logarithmic enhancements an...
[ { "created": "Fri, 29 Mar 2024 17:39:41 GMT", "version": "v1" } ]
2024-04-01
[ [ "Silvetti", "Federico", "" ] ]
With the ongoing Run 3 of the LHC and its upcoming High-Luminosity upgrade, there is a growing need to study observables with high precision both experimentally and theoretically. To increase precision on the theory side, improvements of fixed-order perturbative predictions, resummation of logarithmic enhancements and ...
1704.03263
Hyun-Chul Kim
Sang-In Shim, Hyun-Chul Kim
Pion radiative weak decay from the instanton vacuum
13 pages, 7 figures. Final version accepted for publication in Phys.Lett. B
null
10.1016/j.physletb.2017.07.037
INHA-NTG-03/2017
hep-ph hep-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the vector and axial-vector form factors for the pion radiative weak decays $\pi^+\to e^+\nu_e \gamma$ and $\pi^+\to e^+\nu_e e^+ e^-$, based on the gauged effective chiral action from the instanton vacuum in the large $N_c$ limit. The nonlocal contributions, which arise from the gauging of the action,...
[ { "created": "Tue, 11 Apr 2017 12:26:55 GMT", "version": "v1" }, { "created": "Fri, 19 May 2017 16:07:17 GMT", "version": "v2" }, { "created": "Wed, 19 Jul 2017 16:08:38 GMT", "version": "v3" } ]
2017-09-13
[ [ "Shim", "Sang-In", "" ], [ "Kim", "Hyun-Chul", "" ] ]
We investigate the vector and axial-vector form factors for the pion radiative weak decays $\pi^+\to e^+\nu_e \gamma$ and $\pi^+\to e^+\nu_e e^+ e^-$, based on the gauged effective chiral action from the instanton vacuum in the large $N_c$ limit. The nonlocal contributions, which arise from the gauging of the action, e...
hep-ph/0005149
Kiselev Valery V.
V.V.Braguta, A.E.Chalov
Pair production of doubly heavy baryons
14 pages, LaTeX file and 9 eps-figures
null
null
null
hep-ph
null
We analytically calculate the total and differential cross sections for the pair production of doubly heavy baryons in the framework of diquark model. The processes of electron-positron and quark-antiquark annihilations are considered. The fractions of doubly heavy baryons in the yields of heavy quarks are evaluated ...
[ { "created": "Tue, 16 May 2000 10:50:11 GMT", "version": "v1" } ]
2007-05-23
[ [ "Braguta", "V. V.", "" ], [ "Chalov", "A. E.", "" ] ]
We analytically calculate the total and differential cross sections for the pair production of doubly heavy baryons in the framework of diquark model. The processes of electron-positron and quark-antiquark annihilations are considered. The fractions of doubly heavy baryons in the yields of heavy quarks are evaluated nu...
1002.1521
Alfredo Vega Dr.
Alfredo Vega and Ivan Schmidt
Hadronic spectra in AdS / QCD correspondence
4 pages, 2 figures, to appear in the Proceedings of the VIII Latin American Symposium on Nuclear Physics and Applications, Santiago, Chile, 15-19 December 2009. Talk presented by A. V
AIP Conf.Proc.1265:226-229,2010
10.1063/1.3480171
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present an holographical soft wall model which is able to reproduce Regge spectra for hadrons with an arbitrary number of constituents. The model includes the anomalous dimension of operators that create hadrons, together with a dilaton, whose form is suggested by Einstein`s equations and the AdS metric
[ { "created": "Mon, 8 Feb 2010 03:49:03 GMT", "version": "v1" } ]
2015-05-18
[ [ "Vega", "Alfredo", "" ], [ "Schmidt", "Ivan", "" ] ]
We present an holographical soft wall model which is able to reproduce Regge spectra for hadrons with an arbitrary number of constituents. The model includes the anomalous dimension of operators that create hadrons, together with a dilaton, whose form is suggested by Einstein`s equations and the AdS metric
hep-ph/9709355
Scott Willenbrock
S. Willenbrock (U. of Illinois)
Top Quark Physics for Beautiful and Charming Physicists
13 pages, LateX, 7 ps figures included. Presented at the Seventh International Symposium on Heavy Flavor Physics, University of California at Santa Barbara, July 7-11, 1997
null
null
null
hep-ph
null
I discuss two aspects of top-quark physics: V_tb and the top-quark mass. The similarities and differences with bottom and charm physics are emphasized.
[ { "created": "Tue, 16 Sep 1997 01:23:22 GMT", "version": "v1" } ]
2007-05-23
[ [ "Willenbrock", "S.", "", "U. of Illinois" ] ]
I discuss two aspects of top-quark physics: V_tb and the top-quark mass. The similarities and differences with bottom and charm physics are emphasized.
1403.5744
Aleksei Ivanytskyi
D.R. Oliinychenko, V.V. Sagun, A.I. Ivanytskyi and K.A. Bugaev
Separate chemical freeze-out of strange particles with conservation laws
9 pages, 7 figures. arXiv admin note: text overlap with arXiv:1308.3594
Ukrainian Journal of Physics, 2014, Vol. 59, no. 11, pp. 1051-1059
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Hadron Resonance Gas Model with two chemical freeze-outs, connected by conservation laws is considered. We are arguing that the chemical freeze-out of strange hadrons should occur earlier than the chemical freeze-out of non-strange hadrons. The hadron multiplicities measured in the heavy ion collisions for the ce...
[ { "created": "Sun, 23 Mar 2014 11:58:35 GMT", "version": "v1" } ]
2014-11-21
[ [ "Oliinychenko", "D. R.", "" ], [ "Sagun", "V. V.", "" ], [ "Ivanytskyi", "A. I.", "" ], [ "Bugaev", "K. A.", "" ] ]
The Hadron Resonance Gas Model with two chemical freeze-outs, connected by conservation laws is considered. We are arguing that the chemical freeze-out of strange hadrons should occur earlier than the chemical freeze-out of non-strange hadrons. The hadron multiplicities measured in the heavy ion collisions for the cent...
1403.5883
Tetsutaro Higaki
Michael Czerny, Tetsutaro Higaki, Fuminobu Takahashi
Multi-Natural Inflation in Supergravity and BICEP2
13 pages, 1 figure. v2: references added
Phys.Lett. B734 (2014) 167-172
10.1016/j.physletb.2014.05.041
KEK-TH-1717, TU-962, IPMU14-0068
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We revisit the recently proposed multi-natural inflation and its realization in supergravity in light of the BICEP2 results. Multi-natural inflation is a single-field inflation model where the inflaton potential consists of multiple sinusoidal functions, and it is known that a sizable running spectral index can be ge...
[ { "created": "Mon, 24 Mar 2014 08:54:49 GMT", "version": "v1" }, { "created": "Mon, 31 Mar 2014 06:41:05 GMT", "version": "v2" } ]
2014-06-09
[ [ "Czerny", "Michael", "" ], [ "Higaki", "Tetsutaro", "" ], [ "Takahashi", "Fuminobu", "" ] ]
We revisit the recently proposed multi-natural inflation and its realization in supergravity in light of the BICEP2 results. Multi-natural inflation is a single-field inflation model where the inflaton potential consists of multiple sinusoidal functions, and it is known that a sizable running spectral index can be gene...
hep-ph/0312228
Youichi Yamada
Youichi Yamada
Large tan beta SUSY QCD corrections to B -> X_s gamma
9 pages, talk at the 2nd International Conference on Flavor Physics (ICFP2003), KIAS, Seoul, Korea, Oct. 6-11, 2003
J.Korean Phys.Soc. 45 (2004) S483
null
TU-707
hep-ph
null
The charged-Higgs boson contributions to the Wilson coefficients C_7 and C_8, relevant for the decay B -> X_s gamma, are discussed in supersymmetric models at large tan beta. These contributions receive two-loop O(alpha_s tan beta) corrections by squark-gluino subloops, which are possibly large and nondecoupling in t...
[ { "created": "Wed, 17 Dec 2003 00:47:10 GMT", "version": "v1" } ]
2007-05-23
[ [ "Yamada", "Youichi", "" ] ]
The charged-Higgs boson contributions to the Wilson coefficients C_7 and C_8, relevant for the decay B -> X_s gamma, are discussed in supersymmetric models at large tan beta. These contributions receive two-loop O(alpha_s tan beta) corrections by squark-gluino subloops, which are possibly large and nondecoupling in the...
2403.19609
Feng Yuan
Yoshitaka Hatta, Feng Yuan
Angular dependence in transverse momentum dependent diffractive parton distributions at small-$x$
9 pages, 5 figures
null
null
null
hep-ph hep-ex nucl-ex nucl-th
http://creativecommons.org/licenses/by/4.0/
We discuss the angular dependence of the recently proposed transverse momentum dependent quark and gluon diffractive parton distributions at small-$x$. We introduce the difractive versions of the Sivers function and the elliptic gluon Wigner distribution and evaluate them in simple models with gluon saturation and st...
[ { "created": "Thu, 28 Mar 2024 17:29:41 GMT", "version": "v1" } ]
2024-03-29
[ [ "Hatta", "Yoshitaka", "" ], [ "Yuan", "Feng", "" ] ]
We discuss the angular dependence of the recently proposed transverse momentum dependent quark and gluon diffractive parton distributions at small-$x$. We introduce the difractive versions of the Sivers function and the elliptic gluon Wigner distribution and evaluate them in simple models with gluon saturation and stud...
hep-ph/9909326
Neal Weiner
Nima Arkani-Hamed, Lawrence Hall, David Smith and Neal Weiner
Flavor at the TeV Scale with Extra Dimensions
40 pages, 8 figures
Phys.Rev.D61:116003,2000
10.1103/PhysRevD.61.116003
LBL-44235, UCB-PTH-99/40
hep-ph
null
Theories where the Standard Model fields reside on a 3-brane, with a low fundamental cut-off and extra dimensions, provide alternative solutions to the gauge hierarchy problem. However, generating flavor at the TeV scale while avoiding flavor-changing difficulties appears prohibitively difficult at first sight. We ar...
[ { "created": "Mon, 13 Sep 1999 19:41:41 GMT", "version": "v1" } ]
2008-11-26
[ [ "Arkani-Hamed", "Nima", "" ], [ "Hall", "Lawrence", "" ], [ "Smith", "David", "" ], [ "Weiner", "Neal", "" ] ]
Theories where the Standard Model fields reside on a 3-brane, with a low fundamental cut-off and extra dimensions, provide alternative solutions to the gauge hierarchy problem. However, generating flavor at the TeV scale while avoiding flavor-changing difficulties appears prohibitively difficult at first sight. We argu...
1204.2706
Davide Meloni
G. Blankenburg and D. Meloni
Fine-tuning and naturalness issues in the two-zero neutrino mass textures
13 pages, 14 figures. Version to appear in NPB
null
10.1016/j.nuclphysb.2012.10.011
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we analyze the compatibility of two-zero neutrino Majorana textures with the recent experimental data. Differently from previous works, we use the experimental data to fix the values of the non-vanishing mass matrix entries and study in detail the correlations and degree of fine-tuning among them, which...
[ { "created": "Thu, 12 Apr 2012 12:59:45 GMT", "version": "v1" }, { "created": "Wed, 17 Oct 2012 12:46:22 GMT", "version": "v2" } ]
2015-06-04
[ [ "Blankenburg", "G.", "" ], [ "Meloni", "D.", "" ] ]
In this paper we analyze the compatibility of two-zero neutrino Majorana textures with the recent experimental data. Differently from previous works, we use the experimental data to fix the values of the non-vanishing mass matrix entries and study in detail the correlations and degree of fine-tuning among them, which i...
1510.01302
Frank Deppisch
Frank F. Deppisch
Probing Leptonic Models at the LHC
Talk presented at CIPANP2015. 9 pages, 3 figures
null
null
CIPANP2015-Deppisch
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Models of neutrino mass generation provide well motivated scenarios of Beyond-the-Standard-Model physics. The synergy between low energy and high energy LHC searches facilitates an effective approach to rule out, constrain or ideally pinpoint such models. In this proceedings report, we provide a brief overview of sce...
[ { "created": "Mon, 5 Oct 2015 19:46:22 GMT", "version": "v1" } ]
2015-10-06
[ [ "Deppisch", "Frank F.", "" ] ]
Models of neutrino mass generation provide well motivated scenarios of Beyond-the-Standard-Model physics. The synergy between low energy and high energy LHC searches facilitates an effective approach to rule out, constrain or ideally pinpoint such models. In this proceedings report, we provide a brief overview of scena...
hep-ph/0504091
Alexander Khodjamirian
Alexander Khodjamirian, Thomas Mannel and Nils Offen
$B$-Meson Distribution Amplitude from the $B\to \pi$ Form Factor
11 pages, 1 figure, version to appear in Phys.Lett.B
Phys.Lett. B620 (2005) 52-60
10.1016/j.physletb.2005.06.021
SI-HEP-2005-01
hep-ph
null
Employing the light-cone sum rule approach in QCD, we relate the $B$-meson distribution amplitude to the $B\to \pi$ form factor at zero momentum transfer. In leading order, the sum rule is converted into a simple expression for the inverse moment $\lambda_B$ of the distribution amplitude $\phi_{+}^B$. Using as an inp...
[ { "created": "Tue, 12 Apr 2005 18:05:59 GMT", "version": "v1" }, { "created": "Wed, 22 Jun 2005 18:24:43 GMT", "version": "v2" } ]
2009-11-11
[ [ "Khodjamirian", "Alexander", "" ], [ "Mannel", "Thomas", "" ], [ "Offen", "Nils", "" ] ]
Employing the light-cone sum rule approach in QCD, we relate the $B$-meson distribution amplitude to the $B\to \pi$ form factor at zero momentum transfer. In leading order, the sum rule is converted into a simple expression for the inverse moment $\lambda_B$ of the distribution amplitude $\phi_{+}^B$. Using as an input...
1112.2582
Aleksandra Drozd
Aleksandra Drozd, Bohdan Grzadkowski, Jose Wudka
Multi-Scalar-Singlet Extension of the Standard Model - the Case for Dark Matter and an Invisible Higgs Boson
18 pages, 15 figures
JHEP 1204 (2012) 006
10.1007/JHEP04(2012)006
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider a simple extension of the Standard Model by the addition of N real scalar gauge singlets $\vp$ that are candidates for Dark Matter. By collecting theoretical and experimental constraints we determine the space of allowed parameters of the model. The possibility of ameliorating the little hierarchy problem...
[ { "created": "Mon, 12 Dec 2011 15:14:27 GMT", "version": "v1" }, { "created": "Wed, 28 Dec 2011 00:30:51 GMT", "version": "v2" }, { "created": "Tue, 31 Jul 2012 16:20:34 GMT", "version": "v3" } ]
2015-06-03
[ [ "Drozd", "Aleksandra", "" ], [ "Grzadkowski", "Bohdan", "" ], [ "Wudka", "Jose", "" ] ]
We consider a simple extension of the Standard Model by the addition of N real scalar gauge singlets $\vp$ that are candidates for Dark Matter. By collecting theoretical and experimental constraints we determine the space of allowed parameters of the model. The possibility of ameliorating the little hierarchy problem w...
2407.05831
Muyuan Song
Jia Liu, Muyuan Song, Haohao Zhang
Revisiting for maximal flavor violating $Z^{'}_{e\mu}$ and its phenomenology constraints
32 pages, 9 figures
null
null
null
hep-ph
http://creativecommons.org/publicdomain/zero/1.0/
Lepton flavor violation (LFV), observed conclusively in neutrino oscillations, remains a pivotal area of investigation due to its absence in the Standard Model (SM). Beyond the Standard Model (BSM) physics explores charged lepton flavor violation (CLFV), particularly through new particle candidates such as the $Z^{'}...
[ { "created": "Mon, 8 Jul 2024 11:25:16 GMT", "version": "v1" } ]
2024-07-09
[ [ "Liu", "Jia", "" ], [ "Song", "Muyuan", "" ], [ "Zhang", "Haohao", "" ] ]
Lepton flavor violation (LFV), observed conclusively in neutrino oscillations, remains a pivotal area of investigation due to its absence in the Standard Model (SM). Beyond the Standard Model (BSM) physics explores charged lepton flavor violation (CLFV), particularly through new particle candidates such as the $Z^{'}$....
2110.01972
Hyeonseok Seong
Kiwoon Choi, Hee Jung Kim, Hyeonseok Seong and Chang Sub Shin
Axion emission from supernova with axion-pion-nucleon contact interaction
20 pages, 6 figures, v2: minor changes, references updated, appendix added, matches the published version
JHEP 02 (2022) 143
10.1007/JHEP02(2022)143
CTPU-PTC-21-35
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We examine the axion emission from supernovae with a complete set of relevant axion couplings including the axion-pion-nucleon contact interaction which was ignored in the previous studies. Two processes are affected by the axion-pion-nucleon contact interaction, $\pi^-+p \rightarrow n + a$ and $n+p\rightarrow n+p+a$...
[ { "created": "Tue, 5 Oct 2021 12:13:10 GMT", "version": "v1" }, { "created": "Mon, 21 Feb 2022 05:56:05 GMT", "version": "v2" } ]
2022-02-22
[ [ "Choi", "Kiwoon", "" ], [ "Kim", "Hee Jung", "" ], [ "Seong", "Hyeonseok", "" ], [ "Shin", "Chang Sub", "" ] ]
We examine the axion emission from supernovae with a complete set of relevant axion couplings including the axion-pion-nucleon contact interaction which was ignored in the previous studies. Two processes are affected by the axion-pion-nucleon contact interaction, $\pi^-+p \rightarrow n + a$ and $n+p\rightarrow n+p+a$, ...
2308.07094
Ahmad Moursy ElSayed
George Lazarides, Rinku Maji, Ahmad Moursy, Qaisar Shafi
Inflation, superheavy metastable strings and gravitational waves in non-supersymmetric flipped SU(5)
Revised version accepted for publication in JCAP
JCAP 03 (2024) 006
10.1088/1475-7516/2024/03/006
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivated by the NANOGrav 15 year data and other recent investigations of stochastic gravitational background radiation based on pulsar timing arrays, we show how superheavy strings survive inflation but the slightly heavier monopoles do not in a non-supersymmetric hybrid inflation model based on flipped $SU(5)$. Wit...
[ { "created": "Mon, 14 Aug 2023 12:05:52 GMT", "version": "v1" }, { "created": "Tue, 22 Aug 2023 03:05:32 GMT", "version": "v2" }, { "created": "Sun, 28 Jan 2024 21:06:18 GMT", "version": "v3" } ]
2024-03-08
[ [ "Lazarides", "George", "" ], [ "Maji", "Rinku", "" ], [ "Moursy", "Ahmad", "" ], [ "Shafi", "Qaisar", "" ] ]
Motivated by the NANOGrav 15 year data and other recent investigations of stochastic gravitational background radiation based on pulsar timing arrays, we show how superheavy strings survive inflation but the slightly heavier monopoles do not in a non-supersymmetric hybrid inflation model based on flipped $SU(5)$. With ...
1905.06665
Hannu Paukkunen
Ilkka Helenius and Hannu Paukkunen
Hadroproduction of open heavy flavour for PDF analyses
To appear in the proceedings of the DIS'19 conference
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Due to the large masses of the charm and bottom quarks, their production cross sections are calculable within the perturbative QCD. This makes the heavy-quark mesons important observables in high-energy collisions of protons and nuclei. However, the available calculations for heavy-flavored-meson hadroproduction have...
[ { "created": "Thu, 16 May 2019 11:26:42 GMT", "version": "v1" } ]
2019-05-17
[ [ "Helenius", "Ilkka", "" ], [ "Paukkunen", "Hannu", "" ] ]
Due to the large masses of the charm and bottom quarks, their production cross sections are calculable within the perturbative QCD. This makes the heavy-quark mesons important observables in high-energy collisions of protons and nuclei. However, the available calculations for heavy-flavored-meson hadroproduction have b...
2109.12025
Vladimir Bytev
Vladimir V. Bytev, Stepan. S. Shimanskiy
Qualitative analysis of proton inelastic scattering for diquark searching
null
null
10.1134/S1063778822030073
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
In this paper we discuss exclusive reactions which analysis can be used to receive direct indication of diquark existence. We make estimations of diquark scattering process measurement in inelastic proton-proton collisions. It was shown that putting special restrictions over kinematics and particles in final state of...
[ { "created": "Fri, 24 Sep 2021 15:31:25 GMT", "version": "v1" } ]
2022-07-13
[ [ "Bytev", "Vladimir V.", "" ], [ "Shimanskiy", "Stepan. S.", "" ] ]
In this paper we discuss exclusive reactions which analysis can be used to receive direct indication of diquark existence. We make estimations of diquark scattering process measurement in inelastic proton-proton collisions. It was shown that putting special restrictions over kinematics and particles in final state of p...
hep-ph/0309007
Sean Fleming
Sean Fleming
The Resummed Photon Spectrum in Radiative Upsilon Decays (And More)
Presented at the Conference on the Intersections of Particle and Nuclear Physics, May 19-24, 2003. Requires aipproc
AIP Conf.Proc.698:579-582,2004
10.1063/1.1664304
null
hep-ph
null
In this talk I present the results of two calculations that make use of Non-Relativistic QCD and the newly developed Soft-Collinear Effective Theory. The first process considered is inclusive radiative $\Upsilon$ decay. The second process considered is the leading color-octet contribution to $e^+ e^- \to J/\psi + X$....
[ { "created": "Mon, 1 Sep 2003 01:07:18 GMT", "version": "v1" } ]
2011-03-23
[ [ "Fleming", "Sean", "" ] ]
In this talk I present the results of two calculations that make use of Non-Relativistic QCD and the newly developed Soft-Collinear Effective Theory. The first process considered is inclusive radiative $\Upsilon$ decay. The second process considered is the leading color-octet contribution to $e^+ e^- \to J/\psi + X$.
1603.01788
Daris Samart
Daris Samart, Chakrit Nualchimplee and Yupeng Yan
Combined heavy-quark symmetry and large-$N_c$ operator analysis for 2-body counterterms in the chiral Lagrangian with $D$ mesons and charmed baryons
Accepted for publication in Physical Review D. The manuscript is largely modified following referee's comments and suggestions, 19 pages and no figure
Phys. Rev. D 93, 116004 (2016)
10.1103/PhysRevD.93.116004
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We construct, in the work, chiral $SU(3)$ Lagrangian with $D$ mesons of spin $J^P=0^-$ and $J^P=1^-$ and charmed baryons of spin $J^P=1/2^+$ and $J^P=3/2^+$. There are 42 leading two-body counter-terms involving two charmed baryon fields and two $D$ meson fields in the constructed Lagrangian. The heavy-quark spin sym...
[ { "created": "Sun, 6 Mar 2016 04:52:01 GMT", "version": "v1" }, { "created": "Thu, 26 May 2016 02:52:22 GMT", "version": "v2" } ]
2016-06-15
[ [ "Samart", "Daris", "" ], [ "Nualchimplee", "Chakrit", "" ], [ "Yan", "Yupeng", "" ] ]
We construct, in the work, chiral $SU(3)$ Lagrangian with $D$ mesons of spin $J^P=0^-$ and $J^P=1^-$ and charmed baryons of spin $J^P=1/2^+$ and $J^P=3/2^+$. There are 42 leading two-body counter-terms involving two charmed baryon fields and two $D$ meson fields in the constructed Lagrangian. The heavy-quark spin symme...
hep-ph/9410407
Tom Gould
Thomas M. Gould and Stephen D.H. Hsu
Anomalous Violation of Conservation Laws in Minkowski Space
30 pgs., LaTeX with optional PicTex figures, JHU-TIPAC-940017, HUTP-A0/03
Nucl.Phys. B446 (1995) 35-64
10.1016/0550-3213(95)00247-P
null
hep-ph hep-th
null
We consider the evolution of quantum fermi fields in Minkowski gauge field backgrounds. Our motivation is the study of anomalous fermion number violating processes. We derive selection rules for fermion scattering amplitudes which relate the violation of fermionic charge to the change in winding between early and lat...
[ { "created": "Sun, 30 Oct 1994 20:27:01 GMT", "version": "v1" } ]
2009-10-28
[ [ "Gould", "Thomas M.", "" ], [ "Hsu", "Stephen D. H.", "" ] ]
We consider the evolution of quantum fermi fields in Minkowski gauge field backgrounds. Our motivation is the study of anomalous fermion number violating processes. We derive selection rules for fermion scattering amplitudes which relate the violation of fermionic charge to the change in winding between early and late ...
hep-ph/9803216
Xinwei Kong
Xinwei Kong, Finn Ravndal (University of Oslo)
Quantum Corrections to the QED Vacuum Energy
31 pages, 10 figures
Nucl.Phys. B526 (1998) 627-656
10.1016/S0550-3213(98)00364-2
null
hep-ph
null
At energies much less than the electron mass $m$ the effects of quantum fluctuations in the vacuum due to virtual electron loops can be included by extending the Maxwell Lagrangian by additional non-renormalizable terms corresponding to the Uehling and Euler-Heisenberg interactions. This effective field theory is use...
[ { "created": "Mon, 2 Mar 1998 17:12:01 GMT", "version": "v1" }, { "created": "Wed, 11 Mar 1998 14:50:16 GMT", "version": "v2" } ]
2009-10-31
[ [ "Kong", "Xinwei", "", "University of Oslo" ], [ "Ravndal", "Finn", "", "University of Oslo" ] ]
At energies much less than the electron mass $m$ the effects of quantum fluctuations in the vacuum due to virtual electron loops can be included by extending the Maxwell Lagrangian by additional non-renormalizable terms corresponding to the Uehling and Euler-Heisenberg interactions. This effective field theory is used ...
1101.4362
Chian-Shu Chen
Chian-Shu Chen and Chia-Min Lin
Bimodal/Schizophrenic Neutrino As a Bridge between Inflation and Dark Energy
10 pages; accepted for publication in Eur. Phys. J. C
Eur.Phys.J.C71:1643,2011
10.1140/epjc/s10052-011-1643-0
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the possibility to combine inflection point inflation and growing neutrino dark energy in a particular setup of bimodal/schizophrenic neutrino model in the framework of MSSM$\otimes U(1)_{B-L}$. In order to obtain a varying neutrino mass, we make an assumption that a soft mass of $\tilde{Z'}_{BL}$ depends...
[ { "created": "Sun, 23 Jan 2011 11:48:23 GMT", "version": "v1" }, { "created": "Tue, 19 Apr 2011 01:34:41 GMT", "version": "v2" } ]
2011-05-25
[ [ "Chen", "Chian-Shu", "" ], [ "Lin", "Chia-Min", "" ] ]
We consider the possibility to combine inflection point inflation and growing neutrino dark energy in a particular setup of bimodal/schizophrenic neutrino model in the framework of MSSM$\otimes U(1)_{B-L}$. In order to obtain a varying neutrino mass, we make an assumption that a soft mass of $\tilde{Z'}_{BL}$ depends o...
hep-ph/9909259
Hector DE Vega
D. Boyanovsky, H. J. de Vega and M. Simionato
Non-equilibrium quantum plasmas in scalar QED: photon production, magnetic and Debye masses, and conductivity
LaTex, 57 pages, 11 .ps figures, improved and completed version to appear in Phys. Rev. D
Phys.Rev. D61 (2000) 085007
10.1103/PhysRevD.61.085007
null
hep-ph hep-th nucl-th
null
We study the generation of a non-equilibrium plasma in scalar QED with N charged scalar fields through spinodal instabilities in the case of a super cooled second order phase transition and parametric amplification when the order parameter oscillates with large amplitude around the minimum of the potential.The focus ...
[ { "created": "Mon, 6 Sep 1999 12:08:20 GMT", "version": "v1" }, { "created": "Mon, 7 Feb 2000 15:26:11 GMT", "version": "v2" } ]
2009-10-31
[ [ "Boyanovsky", "D.", "" ], [ "de Vega", "H. J.", "" ], [ "Simionato", "M.", "" ] ]
We study the generation of a non-equilibrium plasma in scalar QED with N charged scalar fields through spinodal instabilities in the case of a super cooled second order phase transition and parametric amplification when the order parameter oscillates with large amplitude around the minimum of the potential.The focus is...
hep-ph/0011382
Stephen P. Martin
Stephen P. Martin and James D. Wells
Constraints on ultraviolet-stable fixed points in supersymmetric gauge theories
12 pages
Phys.Rev.D64:036010,2001
10.1103/PhysRevD.64.036010
null
hep-ph hep-th
null
We consider the possibility that some supersymmetric gauge theories which are not asymptotically free can be governed by ultraviolet-stable fixed points. If this scenario can be realized, gaugino masses will exhibit power-law running with scale, providing a possible solution to the supersymmetric flavor problem. Whil...
[ { "created": "Wed, 29 Nov 2000 23:29:50 GMT", "version": "v1" } ]
2014-11-17
[ [ "Martin", "Stephen P.", "" ], [ "Wells", "James D.", "" ] ]
We consider the possibility that some supersymmetric gauge theories which are not asymptotically free can be governed by ultraviolet-stable fixed points. If this scenario can be realized, gaugino masses will exhibit power-law running with scale, providing a possible solution to the supersymmetric flavor problem. While ...