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1909.05652
Michael Klasen
J. Fiaschi, M. Klasen
Electroweakino and slepton pair production at the LHC in NLO+NLL with resummation-improved PDFs
6 pages, 3 figures. Proceedings of the EPS Conference on High-Energy Physics (EPS-HEP 2019), Ghent, Belgium
null
null
MS-TP-19-23
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Using parton density functions (PDFs) with threshold-resummation improvement, we consistently calculate higgsino/gaugino and slepton pair production at next-to-leading order and next-to-leading logarithmic accuracy at the LHC. The smaller PDF uncertainty of the global PDF sets is exploited with a factorisation method...
[ { "created": "Thu, 12 Sep 2019 13:44:08 GMT", "version": "v1" }, { "created": "Fri, 13 Sep 2019 09:45:17 GMT", "version": "v2" } ]
2019-09-16
[ [ "Fiaschi", "J.", "" ], [ "Klasen", "M.", "" ] ]
Using parton density functions (PDFs) with threshold-resummation improvement, we consistently calculate higgsino/gaugino and slepton pair production at next-to-leading order and next-to-leading logarithmic accuracy at the LHC. The smaller PDF uncertainty of the global PDF sets is exploited with a factorisation method, ...
2001.10666
So Chigusa
So Chigusa, Takeo Moroi, Kazunori Nakayama
Detecting Light Boson Dark Matter through Conversion into Magnon
24 pages, 2 figures
Phys. Rev. D 101, 096013 (2020)
10.1103/PhysRevD.101.096013
UT-20-02
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Light boson dark matter such as axion or hidden photon can be resonantly converted into a magnon in a magnetic insulator under the magnetic field, which can be detected experimentally. We provide a quantum mechanical formulation for the magnon event rate and show that the result is consistent with that obtained by a ...
[ { "created": "Wed, 29 Jan 2020 02:29:45 GMT", "version": "v1" }, { "created": "Sun, 16 Feb 2020 01:14:27 GMT", "version": "v2" }, { "created": "Wed, 20 May 2020 02:01:54 GMT", "version": "v3" } ]
2020-05-21
[ [ "Chigusa", "So", "" ], [ "Moroi", "Takeo", "" ], [ "Nakayama", "Kazunori", "" ] ]
Light boson dark matter such as axion or hidden photon can be resonantly converted into a magnon in a magnetic insulator under the magnetic field, which can be detected experimentally. We provide a quantum mechanical formulation for the magnon event rate and show that the result is consistent with that obtained by a cl...
1512.08864
Kei Suzuki
Philipp Gubler, Koichi Hattori, Su Houng Lee, Makoto Oka, Sho Ozaki, Kei Suzuki
D mesons in a magnetic field
23 pages, 13 figures; published version
Phys. Rev. D 93, 054026 (2016)
10.1103/PhysRevD.93.054026
KEK-TH-1883, RBRC-1162, RIKEN-QHP-212
hep-ph hep-lat nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the mass spectra of open heavy flavor mesons in an external constant magnetic field within QCD sum rules. Spectral ans\"atze on the phenomenological side are proposed in order to properly take into account mixing effects between the pseudoscalar and vector channels, and the Landau levels of charged mes...
[ { "created": "Wed, 30 Dec 2015 06:49:36 GMT", "version": "v1" }, { "created": "Mon, 28 Mar 2016 18:13:51 GMT", "version": "v2" } ]
2016-03-29
[ [ "Gubler", "Philipp", "" ], [ "Hattori", "Koichi", "" ], [ "Lee", "Su Houng", "" ], [ "Oka", "Makoto", "" ], [ "Ozaki", "Sho", "" ], [ "Suzuki", "Kei", "" ] ]
We investigate the mass spectra of open heavy flavor mesons in an external constant magnetic field within QCD sum rules. Spectral ans\"atze on the phenomenological side are proposed in order to properly take into account mixing effects between the pseudoscalar and vector channels, and the Landau levels of charged meson...
hep-ph/0102128
Brian Harris
B. W. Harris and J. F. Owens
The two cutoff phase space slicing method
44 pages, 15 figures, uses RevTex4 and epsfig. References added. Published in Physical Review D
Phys.Rev. D65 (2002) 094032
10.1103/PhysRevD.65.094032
ANL-HEP-PR-00-044, FSU-HEP-010130
hep-ph
null
The phase space slicing method of two cutoffs for next-to-leading-order Monte-Carlo style QCD corrections has been applied to many physics processes. The method is intuitive, simple to implement, and relies on a minimum of process dependent information. Although results for specific applications exist in the literatu...
[ { "created": "Sat, 10 Feb 2001 21:36:10 GMT", "version": "v1" }, { "created": "Thu, 13 Sep 2001 20:19:35 GMT", "version": "v2" }, { "created": "Mon, 13 May 2002 19:54:13 GMT", "version": "v3" } ]
2009-11-07
[ [ "Harris", "B. W.", "" ], [ "Owens", "J. F.", "" ] ]
The phase space slicing method of two cutoffs for next-to-leading-order Monte-Carlo style QCD corrections has been applied to many physics processes. The method is intuitive, simple to implement, and relies on a minimum of process dependent information. Although results for specific applications exist in the literature...
1409.6298
Andrew Larkoski
Andrew J. Larkoski, Ian Moult, Duff Neill
Power Counting to Better Jet Observables
35 pages, 15 figures
null
10.1007/JHEP12(2014)009
MIT--CTP 4588
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Optimized jet substructure observables for identifying boosted topologies will play an essential role in maximizing the physics reach of the Large Hadron Collider. Ideally, the design of discriminating variables would be informed by analytic calculations in perturbative QCD. Unfortunately, explicit calculations are o...
[ { "created": "Mon, 22 Sep 2014 20:00:00 GMT", "version": "v1" } ]
2015-06-22
[ [ "Larkoski", "Andrew J.", "" ], [ "Moult", "Ian", "" ], [ "Neill", "Duff", "" ] ]
Optimized jet substructure observables for identifying boosted topologies will play an essential role in maximizing the physics reach of the Large Hadron Collider. Ideally, the design of discriminating variables would be informed by analytic calculations in perturbative QCD. Unfortunately, explicit calculations are oft...
2204.07022
Junichiro Kawamura
Junichiro Kawamura, Shohei Okawa and Yuji Omura
$W$ boson mass and muon $g-2$ in a lepton portal dark matter model
10 pages, 3 figures and 1 table.; ver2 references added
null
10.1103/PhysRevD.106.015005
CTPU-PTC-22-05
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
We study a lepton portal dark matter model, motivated by the deviation of the $W$ boson mass reported by the CDF collaboration. We introduce vector-like leptons and a scalar dark matter (DM) which exclusively couples to the extra leptons and muon. The one-loop corrections induced by the new particles can shift the $W...
[ { "created": "Thu, 14 Apr 2022 15:20:39 GMT", "version": "v1" }, { "created": "Mon, 25 Apr 2022 06:39:16 GMT", "version": "v2" } ]
2022-07-20
[ [ "Kawamura", "Junichiro", "" ], [ "Okawa", "Shohei", "" ], [ "Omura", "Yuji", "" ] ]
We study a lepton portal dark matter model, motivated by the deviation of the $W$ boson mass reported by the CDF collaboration. We introduce vector-like leptons and a scalar dark matter (DM) which exclusively couples to the extra leptons and muon. The one-loop corrections induced by the new particles can shift the $W$ ...
1502.02517
Jacques Soffer
Claude Bourrely and Jacques Soffer
New developments in the statistical approach of parton distributions: tests and predictions up to LHC energies
40 pages, 21 figures, revised version to appear in Nuclear Physics A
null
10.1016/j.nuclphysa.2015.06.018
null
hep-ph hep-ex nucl-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The quantum statistical parton distributions approach proposed more than one decade ago is revisited by considering a larger set of recent and accurate Deep Inelastic Scattering experimental results. It enables us to improve the description of the data by means of a new determination of the parton distributions. This...
[ { "created": "Mon, 9 Feb 2015 15:13:42 GMT", "version": "v1" }, { "created": "Wed, 8 Jul 2015 19:44:47 GMT", "version": "v2" } ]
2015-12-09
[ [ "Bourrely", "Claude", "" ], [ "Soffer", "Jacques", "" ] ]
The quantum statistical parton distributions approach proposed more than one decade ago is revisited by considering a larger set of recent and accurate Deep Inelastic Scattering experimental results. It enables us to improve the description of the data by means of a new determination of the parton distributions. This g...
1809.02830
Eugenio Megias
Eugenio Megias, Airton Deppman, Tobias Frederico, Debora P. Menezes
Fractal structure of hadrons and non-extensive statistics
5 pages, 2 figures. Presented by E.Megias at the QCD@Work: International Workshop on QCD, 25-28 June 2018, Matera, Italy
null
10.1051/epjconf/201819200046
null
hep-ph cond-mat.stat-mech nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The role played by non-extensive thermodynamics in physical systems has been under intense debate for the last decades. Some possible mechanisms that could give rise to non-extensive statistics have been formulated along the last few years, in particular the existence of a fractal structure in thermodynamic functions...
[ { "created": "Sat, 8 Sep 2018 16:25:57 GMT", "version": "v1" } ]
2018-12-05
[ [ "Megias", "Eugenio", "" ], [ "Deppman", "Airton", "" ], [ "Frederico", "Tobias", "" ], [ "Menezes", "Debora P.", "" ] ]
The role played by non-extensive thermodynamics in physical systems has been under intense debate for the last decades. Some possible mechanisms that could give rise to non-extensive statistics have been formulated along the last few years, in particular the existence of a fractal structure in thermodynamic functions f...
hep-ph/9809455
null
D. Pocanic (Univ. of Virginia)
Pion--Pion Scattering Experiments at Low Energy
Talk given by D. Pocanic at the International Workshop on "Hadronic Atoms and Positronium in the Standard Model", 26-31 May 1998, JINR (Dubna, Russia); 8 pages, 4 PostScript figures, writen in LaTeX, uses packages "dubna_98" and "psfig". Author's e-mail: pocanic@virginia.edu
null
null
UVA-INPP-98-07 [18 Sep 1998]
hep-ph
null
This work reviews the available experimental information on the pi-pi scattering lengths, especially the recent near-threshold pi N -> pi pi N data from several laboratories and the related application of the Chew-Low-Goebel (CLG) technique well below 1 GeV/c momentum. At this time uncertainties stemming from non-pio...
[ { "created": "Fri, 18 Sep 1998 19:51:05 GMT", "version": "v1" } ]
2007-05-23
[ [ "Pocanic", "D.", "", "Univ. of Virginia" ] ]
This work reviews the available experimental information on the pi-pi scattering lengths, especially the recent near-threshold pi N -> pi pi N data from several laboratories and the related application of the Chew-Low-Goebel (CLG) technique well below 1 GeV/c momentum. At this time uncertainties stemming from non-pion-...
hep-ph/9712222
Andrzej Czarnecki
Andrzej Czarnecki and Kirill Melnikov
Two-loop QCD corrections to the heavy quark pair production cross section in e+e- annihilation near the threshold
9 pages, revtex
Phys.Rev.Lett. 80 (1998) 2531-2534
10.1103/PhysRevLett.80.2531
TTP97-54
hep-ph
null
We present the O(alpha_s) corrections to the cross section for the reaction e+e- --> gamma^* --> Q \bar Q in the energy region close to the threshold. We assume that the energy of the reaction is such that both the perturbative expansion in the strong coupling constant and expansion in the relative velocity of the he...
[ { "created": "Mon, 1 Dec 1997 17:58:11 GMT", "version": "v1" }, { "created": "Mon, 8 Dec 1997 21:30:50 GMT", "version": "v2" } ]
2009-10-30
[ [ "Czarnecki", "Andrzej", "" ], [ "Melnikov", "Kirill", "" ] ]
We present the O(alpha_s) corrections to the cross section for the reaction e+e- --> gamma^* --> Q \bar Q in the energy region close to the threshold. We assume that the energy of the reaction is such that both the perturbative expansion in the strong coupling constant and expansion in the relative velocity of the heav...
0705.4070
Joao Pulido
Marco Picariello, Jo\~ao Pulido, S. Andringa, N.F. Barros, J. Maneira
SNO+: predictions from standard solar models and spin flavour precession
20 pages. Sections 1 and 2 extended, section 4.4 added, references added and updated. Final version to be published in JHEP
JHEP0711:055,2007
10.1088/1126-6708/2007/11/055
null
hep-ph
null
Time variability of the solar neutrino flux especially in the low and intermediate energy sector remains an open question and, if it exists, it is likely to be originated from the magnetic moment transition from active to light sterile neutrinos at times of intense solar activity and magnetic field. We examine the pr...
[ { "created": "Mon, 28 May 2007 17:49:28 GMT", "version": "v1" }, { "created": "Mon, 22 Oct 2007 18:14:00 GMT", "version": "v2" } ]
2008-11-26
[ [ "Picariello", "Marco", "" ], [ "Pulido", "João", "" ], [ "Andringa", "S.", "" ], [ "Barros", "N. F.", "" ], [ "Maneira", "J.", "" ] ]
Time variability of the solar neutrino flux especially in the low and intermediate energy sector remains an open question and, if it exists, it is likely to be originated from the magnetic moment transition from active to light sterile neutrinos at times of intense solar activity and magnetic field. We examine the pros...
hep-ph/9710497
null
J.I. Illana (Institut f\"ur Theoretische Physik, Karlsruhe)
One-loop weak dipole moments of heavy fermions in the MSSM
5 pages, 1 ps figure, LaTeX using appb.sty (included) and epsf.sty. Contribution to the XXI School of Theoretical Physics ``Recent Progress in theory and phenomenology of fundamental interactions", Ustron, Poland, September 1997. The complete ps-file is also available via WWW at http://www-itp.physik.uni-karlsr...
Acta Phys.Polon.B28:2389-2394,1997
null
KA-TP-17-1997
hep-ph
null
The MSSM predictions at the one-loop level for the weak dipole moments of the \tau lepton and the b quark are presented. The imaginary part of the AWMDM is of the order of the SM contribution whereas the real part may be a factor 5 (20) larger for the \tau (b) in the high \tan\beta scenario, still a factor five below...
[ { "created": "Tue, 28 Oct 1997 18:48:01 GMT", "version": "v1" } ]
2011-03-02
[ [ "Illana", "J. I.", "", "Institut für Theoretische Physik, Karlsruhe" ] ]
The MSSM predictions at the one-loop level for the weak dipole moments of the \tau lepton and the b quark are presented. The imaginary part of the AWMDM is of the order of the SM contribution whereas the real part may be a factor 5 (20) larger for the \tau (b) in the high \tan\beta scenario, still a factor five below t...
hep-ph/0609178
Yuval Grossman
Yuval Grossman, Alexander L. Kagan, Yosef Nir
New Physics and CP Violation in Singly Cabibbo Suppressed D Decays
36 pages, 5 figures
Phys.Rev.D75:036008,2007
10.1103/PhysRevD.75.036008
null
hep-ph
null
We analyze various theoretical aspects of CP violation in singly Cabibbo suppressed (SCS) D-meson decays, such as $D \to K K,\pi \pi$. In particular, we explore the possibility that CP asymmetries will be measured close to the present level of experimental sensitivity of $O(10^{-2})$. Such measurements would signal n...
[ { "created": "Tue, 19 Sep 2006 19:35:03 GMT", "version": "v1" } ]
2008-11-26
[ [ "Grossman", "Yuval", "" ], [ "Kagan", "Alexander L.", "" ], [ "Nir", "Yosef", "" ] ]
We analyze various theoretical aspects of CP violation in singly Cabibbo suppressed (SCS) D-meson decays, such as $D \to K K,\pi \pi$. In particular, we explore the possibility that CP asymmetries will be measured close to the present level of experimental sensitivity of $O(10^{-2})$. Such measurements would signal new...
0804.3512
Shun Zhou
Zhi-zhong Xing and Shun Zhou
Implications of Leptonic Unitarity Violation at Neutrino Telescopes
12 pages, 2 PS figures, accepted for publication in Phys. Lett. B
Phys.Lett.B666:166-172,2008
10.1016/j.physletb.2008.07.011
null
hep-ph astro-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A measurement of the ultrahigh-energy (UHE) cosmic neutrinos at a km^3-size neutrino telescope will open a new window to constrain the 3 x 3 neutrino mixing matrix V and probe possible new physics. We point out that it is in principle possible to examine the non-unitarity of V, which is naturally expected in a class ...
[ { "created": "Tue, 22 Apr 2008 12:20:18 GMT", "version": "v1" }, { "created": "Tue, 13 May 2008 08:21:08 GMT", "version": "v2" }, { "created": "Fri, 4 Jul 2008 13:28:21 GMT", "version": "v3" } ]
2008-11-26
[ [ "Xing", "Zhi-zhong", "" ], [ "Zhou", "Shun", "" ] ]
A measurement of the ultrahigh-energy (UHE) cosmic neutrinos at a km^3-size neutrino telescope will open a new window to constrain the 3 x 3 neutrino mixing matrix V and probe possible new physics. We point out that it is in principle possible to examine the non-unitarity of V, which is naturally expected in a class of...
1806.04146
Daniel Aloni
Daniel Aloni, Yuval Grossman and Abner Soffer
Measuring CP violation in $b\to c\tau^-\bar{\nu}_\tau$ using excited charm mesons
19 pages, 4 figures
Phys. Rev. D 98, 035022 (2018)
10.1103/PhysRevD.98.035022
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
There is growing evidence for deviation from the standard model predictions in the ratios between semi-tauonic and semi-leptonic $B$ decays, known as the $R(D^{(*)})$ puzzle. If the source of this non-universality is new physics, it is natural to assume that it also breaks CP symmetry. In this paper we study the poss...
[ { "created": "Mon, 11 Jun 2018 18:00:04 GMT", "version": "v1" }, { "created": "Sun, 29 Jul 2018 07:28:02 GMT", "version": "v2" }, { "created": "Thu, 17 Jan 2019 08:09:05 GMT", "version": "v3" } ]
2019-01-18
[ [ "Aloni", "Daniel", "" ], [ "Grossman", "Yuval", "" ], [ "Soffer", "Abner", "" ] ]
There is growing evidence for deviation from the standard model predictions in the ratios between semi-tauonic and semi-leptonic $B$ decays, known as the $R(D^{(*)})$ puzzle. If the source of this non-universality is new physics, it is natural to assume that it also breaks CP symmetry. In this paper we study the possib...
1409.6175
Pedro Fernando Simoes Costa
Pedro Costa, M\'arcio Ferreira, Constan\c{c}a Provid\^encia, Hubert Hansen, D\'ebora P. Menezes
The QCD critical end point driven by an external magnetic field in asymmetric quark matter
Contribution to the "20th Particles and Nuclei International Conference" (PANIC 14), Hamburg, Germany, 25-29 August 2014
null
10.3204/DESY-PROC-2014-04/75
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The effect of the isospin/charge asymmetry and an external magnetic field in the location of the critical end point (CEP) in the QCD phase diagram is investigated. By using the 2+1 flavor Nambu--Jona-Lasinio model with Polyakov loop (PNJL), it is shown that the isospin asymmetry shifts the CEP to larger baryonic chem...
[ { "created": "Mon, 22 Sep 2014 13:48:05 GMT", "version": "v1" } ]
2015-08-10
[ [ "Costa", "Pedro", "" ], [ "Ferreira", "Márcio", "" ], [ "Providência", "Constança", "" ], [ "Hansen", "Hubert", "" ], [ "Menezes", "Débora P.", "" ] ]
The effect of the isospin/charge asymmetry and an external magnetic field in the location of the critical end point (CEP) in the QCD phase diagram is investigated. By using the 2+1 flavor Nambu--Jona-Lasinio model with Polyakov loop (PNJL), it is shown that the isospin asymmetry shifts the CEP to larger baryonic chemic...
1803.04703
Avelino Vicente
Avelino Vicente
Anomalies in $b \to s$ transitions and dark matter
23 pages, 6 figures. Invited Review for the special issue "New Physics Landmarks: Dark Matter and Neutrino Masses" for Advances in High Energy Physics; v2: minor changes, added references; v3: minor changes, matches published version; v4: added reference
Adv.High Energy Phys. 2018 (2018) 3905848
10.1155/2018/3905848
IFIC/18-11
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Since 2013, the LHCb collaboration has reported on the measurement of several observables associated to $b \to s$ transitions, finding various deviations from their predicted values in the Standard Model. These include a set of deviations in branching ratios and angular observables, as well as in the observables $R_K...
[ { "created": "Tue, 13 Mar 2018 09:44:26 GMT", "version": "v1" }, { "created": "Tue, 20 Mar 2018 10:27:31 GMT", "version": "v2" }, { "created": "Fri, 29 Jun 2018 14:29:36 GMT", "version": "v3" }, { "created": "Wed, 10 Oct 2018 10:20:03 GMT", "version": "v4" } ]
2018-10-11
[ [ "Vicente", "Avelino", "" ] ]
Since 2013, the LHCb collaboration has reported on the measurement of several observables associated to $b \to s$ transitions, finding various deviations from their predicted values in the Standard Model. These include a set of deviations in branching ratios and angular observables, as well as in the observables $R_K$ ...
hep-ph/9901413
David Persson
David Persson
Stabilization of Chromomagnetic Fields at High Temperature?
5p. 1 eps fig. sprocl.sty. To the procedings of Strong and electroweak matter `98
null
null
null
hep-ph
null
It is well known that a tachyonic mode appears in the spectrum of Yang--Mills theory with a static uniform magnetic field, and that the free energy has an (unstable) minimum at finite magnetic field. It is argued that spontaneous generation of magnetic field does not take place at high temperature due to nonperturbat...
[ { "created": "Wed, 27 Jan 1999 01:12:07 GMT", "version": "v1" } ]
2007-05-23
[ [ "Persson", "David", "" ] ]
It is well known that a tachyonic mode appears in the spectrum of Yang--Mills theory with a static uniform magnetic field, and that the free energy has an (unstable) minimum at finite magnetic field. It is argued that spontaneous generation of magnetic field does not take place at high temperature due to nonperturbativ...
0808.0690
Marina Nielsen
Su Houng Lee, Kenji Morita, Marina Nielsen
Can the $\pi^+\chi_{c1}$ resonance structures be $D^*\bar{D}^*$ and $D_1\bar{D}$ molecules?
revised version accepted for publication in Nucl. Phys. A
Nucl.Phys.A815:29-39,2009
10.1016/j.nuclphysa.2008.10.012
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We use QCD sum rules to study the recently observed resonance-like structures in the $\pi^+\chi_{c1}$ mass distribution, $Z_1^+(4050)$ and $Z_2^+(4250)$, considered as $D^{*+}\bar{D}^{*0}$ and $D_1^+\bar{D}^0+ D^+\bar{D}_1^0$ molecules with the quantum number $J^P=0^+$ and $J^P=1^-$ respectively. We consider the cont...
[ { "created": "Tue, 5 Aug 2008 17:16:54 GMT", "version": "v1" }, { "created": "Wed, 22 Oct 2008 16:31:05 GMT", "version": "v2" } ]
2008-12-18
[ [ "Lee", "Su Houng", "" ], [ "Morita", "Kenji", "" ], [ "Nielsen", "Marina", "" ] ]
We use QCD sum rules to study the recently observed resonance-like structures in the $\pi^+\chi_{c1}$ mass distribution, $Z_1^+(4050)$ and $Z_2^+(4250)$, considered as $D^{*+}\bar{D}^{*0}$ and $D_1^+\bar{D}^0+ D^+\bar{D}_1^0$ molecules with the quantum number $J^P=0^+$ and $J^P=1^-$ respectively. We consider the contri...
2110.10111
Simone Zoia
Dmitry Chicherin, Vasily Sotnikov, Simone Zoia
Pentagon Functions for One-Mass Planar Scattering Amplitudes
33 pages + 13 appendix pages, 3 figures. v2: minor text changes, matches the published version
null
10.1007/JHEP01(2022)096
LAPTH-041/21, MPP-2021-182
hep-ph hep-th
http://creativecommons.org/licenses/by/4.0/
We present analytic results for all planar two-loop Feynman integrals contributing to five-particle scattering amplitudes with one external massive leg. We express the integrals in terms of a basis of algebraically-independent transcendental functions, which we call one-mass pentagon functions. We construct them by u...
[ { "created": "Tue, 19 Oct 2021 17:06:37 GMT", "version": "v1" }, { "created": "Tue, 25 Jan 2022 10:25:35 GMT", "version": "v2" } ]
2022-02-09
[ [ "Chicherin", "Dmitry", "" ], [ "Sotnikov", "Vasily", "" ], [ "Zoia", "Simone", "" ] ]
We present analytic results for all planar two-loop Feynman integrals contributing to five-particle scattering amplitudes with one external massive leg. We express the integrals in terms of a basis of algebraically-independent transcendental functions, which we call one-mass pentagon functions. We construct them by usi...
hep-ph/9512367
Gregory Gabadadze
S.J. Brodsky (SLAC), G.T. Gabadadze (Rutgers Univ.), A.L. Kataev (INR Moscow), H.J. Lu (Univ. of Arizona)
The Generalized Crewther Relation in QCD and its Experimental Consequences
16 pages, LATEX file
Phys.Lett.B372:133-140,1996
10.1016/0370-2693(96)00057-3
DESY-95-245, SLAC-PUB-95-7085, RU-95-93, AZPH-TH-95/27
hep-ph
null
We use the BLM scale-fixing prescription to derive a renormalization-scheme invariant relation between the coefficient function for the Bjorken sum rule for polarized deep inelastic scattering and the $R$-ratio for the $e^+e^-$ annihilation cross section. This relation provides a generalization of the Crewther relati...
[ { "created": "Wed, 20 Dec 1995 05:21:52 GMT", "version": "v1" } ]
2009-09-11
[ [ "Brodsky", "S. J.", "", "SLAC" ], [ "Gabadadze", "G. T.", "", "Rutgers Univ." ], [ "Kataev", "A. L.", "", "INR\n Moscow" ], [ "Lu", "H. J.", "", "Univ. of Arizona" ] ]
We use the BLM scale-fixing prescription to derive a renormalization-scheme invariant relation between the coefficient function for the Bjorken sum rule for polarized deep inelastic scattering and the $R$-ratio for the $e^+e^-$ annihilation cross section. This relation provides a generalization of the Crewther relation...
1402.1844
Daniel Almeida Fagundes
G. Pancheri, D.A. Fagundes, A. Grau and Yogendra N. Srivastava
An empirical model for $pp$ scattering and geometrical scaling
7 pages, 6 figures. Based on talk given by G. Pancheri at LC13: Exploring QCD from the infrared regime to heavy flavour scales at B-factories, the LHC and a Linear Collider. To be published by Nuovo Cimento in Proceedings of LC13- Trento 16-20, September 2013
null
10.1393/ncc/i2014-11753-y
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present the result of an empirical model for elastic $pp$ scattering at LHC which indicates that the asymptotic black disk limit ${\cal R}=\sigel/\sigtot\rightarrow1/2$ is not yet reached and discuss the implications on classical geometrical scaling behavior. We propose a geometrical scaling law for the position o...
[ { "created": "Sat, 8 Feb 2014 12:13:16 GMT", "version": "v1" } ]
2022-03-02
[ [ "Pancheri", "G.", "" ], [ "Fagundes", "D. A.", "" ], [ "Grau", "A.", "" ], [ "Srivastava", "Yogendra N.", "" ] ]
We present the result of an empirical model for elastic $pp$ scattering at LHC which indicates that the asymptotic black disk limit ${\cal R}=\sigel/\sigtot\rightarrow1/2$ is not yet reached and discuss the implications on classical geometrical scaling behavior. We propose a geometrical scaling law for the position of ...
0803.2161
Jose Rodriguez-Quintero
Ph. Boucaud, J.P. Leroy, A. Le Yaouanc, J. Micheli, O. P\`ene, J. Rodr\'iguez-Quintero
On the IR behaviour of the Landau-gauge ghost propagator
15 pages, Axodraw needed
JHEP 0806:099,2008
10.1088/1126-6708/2008/06/099
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We examine analytically the ghost propagator Dyson-Schwinger Equation (DSE) in the deep IR regime and prove that a finite ghost dressing function at vanishing momentum is an alternative solution (solution II) to the usually assumed divergent one (solution I). We furthermore find that the Slavnov-Taylor identities dis...
[ { "created": "Fri, 14 Mar 2008 13:45:25 GMT", "version": "v1" } ]
2010-03-19
[ [ "Boucaud", "Ph.", "" ], [ "Leroy", "J. P.", "" ], [ "Yaouanc", "A. Le", "" ], [ "Micheli", "J.", "" ], [ "Pène", "O.", "" ], [ "Rodríguez-Quintero", "J.", "" ] ]
We examine analytically the ghost propagator Dyson-Schwinger Equation (DSE) in the deep IR regime and prove that a finite ghost dressing function at vanishing momentum is an alternative solution (solution II) to the usually assumed divergent one (solution I). We furthermore find that the Slavnov-Taylor identities discr...
1506.07890
Andrea Rucci
Claudio Bonati, Massimo D'Elia and Andrea Rucci
Heavy quarkonia in strong magnetic fields
10 pages, 9 figures, 3 tables, minor changes, references added
Phys. Rev. D 92, 054014 (2015)
10.1103/PhysRevD.92.054014
IFUP-TH/2015-06
hep-ph hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the influence of a homogeneus and constant strong external magnetic field on the heavy-meson spectrum. Quarkonium states $c\bar{c}$ and $b\bar{b}$ are described within a non-relativistic framework and by means of a suitable potential model based on the Cornell parametrization. In particular, in this wo...
[ { "created": "Thu, 25 Jun 2015 20:07:45 GMT", "version": "v1" }, { "created": "Fri, 11 Sep 2015 10:37:39 GMT", "version": "v2" } ]
2015-09-14
[ [ "Bonati", "Claudio", "" ], [ "D'Elia", "Massimo", "" ], [ "Rucci", "Andrea", "" ] ]
We investigate the influence of a homogeneus and constant strong external magnetic field on the heavy-meson spectrum. Quarkonium states $c\bar{c}$ and $b\bar{b}$ are described within a non-relativistic framework and by means of a suitable potential model based on the Cornell parametrization. In particular, in this work...
hep-ph/9510437
Martin Beneke
M. Beneke and V.A. Smirnov
Ultraviolet renormalons in abelian gauge theories
61 pages, LATEX, 10 figures as uu-decoded file
Nucl.Phys. B472 (1996) 529-590
10.1016/0550-3213(96)00205-2
UM-TH-95-22
hep-ph hep-th
null
We analyze the large-order behaviour in perturbation theory of classes of diagrams with an arbitrary number of chains (i.e. photon lines, dressed by vacuum polarization insertions). We derive explicit formulae for the leading and subleading divergence as $n\to\infty$, and a complete result for the vacuum polarization...
[ { "created": "Fri, 27 Oct 1995 17:00:34 GMT", "version": "v1" } ]
2009-10-28
[ [ "Beneke", "M.", "" ], [ "Smirnov", "V. A.", "" ] ]
We analyze the large-order behaviour in perturbation theory of classes of diagrams with an arbitrary number of chains (i.e. photon lines, dressed by vacuum polarization insertions). We derive explicit formulae for the leading and subleading divergence as $n\to\infty$, and a complete result for the vacuum polarization a...
hep-ph/0210417
Jan Kalinowski
Wojciech Krolikowski
Does the LMA MSW solar solution imply the Dirac nature of neutrinos?
8 pages, latex, no figures
null
null
IFT-02/38
hep-ph
null
Operating with the bilarge neutrino mixing, we show that in the option of Dirac neutrinos the fermion universality -- expressed by the proportionality of neutrino masses to charged-lepton masses -- predicts $\Delta m_{21}^2$ of the order $10^{-5} {\rm eV}^2$, consistently with the LMA MSW solar solution. In contrast,...
[ { "created": "Wed, 30 Oct 2002 08:46:10 GMT", "version": "v1" } ]
2007-05-23
[ [ "Krolikowski", "Wojciech", "" ] ]
Operating with the bilarge neutrino mixing, we show that in the option of Dirac neutrinos the fermion universality -- expressed by the proportionality of neutrino masses to charged-lepton masses -- predicts $\Delta m_{21}^2$ of the order $10^{-5} {\rm eV}^2$, consistently with the LMA MSW solar solution. In contrast, i...
hep-ph/0409039
Tobias Kleinschmidt
Tobias Kleinschmidt (Heidelberg U.)
B-Meson Properties from Modified Sum Rule Analyses
64 pages, 58 figures, Diploma Thesis (Adivisor: Dmitri Melikhov)
null
null
HD-THEP-04-32
hep-ph
null
We introduce two approaches to analyses of Borel sum rules. In the first method, we take the Borel mass M2 to infinity. Here, the sum rules become very sensitive to the chosen threshold s0. We fix the threshold by setting the daughter sum rule equal to the meson mass in this limit. The second method introduces a Bore...
[ { "created": "Fri, 3 Sep 2004 18:02:35 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kleinschmidt", "Tobias", "", "Heidelberg U." ] ]
We introduce two approaches to analyses of Borel sum rules. In the first method, we take the Borel mass M2 to infinity. Here, the sum rules become very sensitive to the chosen threshold s0. We fix the threshold by setting the daughter sum rule equal to the meson mass in this limit. The second method introduces a Borel ...
0710.3050
Gilberto Colangelo
Gilberto Colangelo
Theoretical progress on pi pi scattering lengths and phases
11 pages, talk given at the KAON International Conference, May 21-25 2007 Laboratori Nazionali di Frascati dell'INFN, Rome, Italy
PoSKAON:038,2008
null
null
hep-ph hep-lat
null
pi pi scattering at low energy is sensitive to the structure of the QCD vacuum. I review the calculations of the pi pi scattering lengths and phases, and group them in three cathegories: 1. those based on very general theoretical constraints (like dispersion relations and crossing symmetry) and phenomenology, 2. thos...
[ { "created": "Tue, 16 Oct 2007 13:38:49 GMT", "version": "v1" } ]
2008-11-26
[ [ "Colangelo", "Gilberto", "" ] ]
pi pi scattering at low energy is sensitive to the structure of the QCD vacuum. I review the calculations of the pi pi scattering lengths and phases, and group them in three cathegories: 1. those based on very general theoretical constraints (like dispersion relations and crossing symmetry) and phenomenology, 2. those ...
hep-ph/9610451
Thomas Schaefer
T. Schaefer (INT, Seattle), E. Shuryak (SUNY Stony Brook)
Instantons in QCD
143 pages, latex (uses rmp.sty, harvard.sty, epsf.sty), 42 figures, to appear in Rev. Mod. Phys
Rev.Mod.Phys.70:323-426,1998
10.1103/RevModPhys.70.323
DOE/ER/40561-293-INT96-00-150
hep-ph hep-lat hep-th nucl-th
null
We review the theory and phenomenology of instantons in QCD. After a general overview, we provide a pedagogical introduction to semi-classical methods in quantum mechanics and field theory. The main part of the review summarizes our understanding of the instanton liquid in QCD and the role of instantons in generating...
[ { "created": "Wed, 23 Oct 1996 01:30:34 GMT", "version": "v1" }, { "created": "Fri, 18 Apr 1997 22:52:32 GMT", "version": "v2" }, { "created": "Mon, 16 Mar 1998 23:29:23 GMT", "version": "v3" } ]
2008-11-26
[ [ "Schaefer", "T.", "", "INT, Seattle" ], [ "Shuryak", "E.", "", "SUNY Stony Brook" ] ]
We review the theory and phenomenology of instantons in QCD. After a general overview, we provide a pedagogical introduction to semi-classical methods in quantum mechanics and field theory. The main part of the review summarizes our understanding of the instanton liquid in QCD and the role of instantons in generating t...
1601.00483
Sergey Troshin
S.M. Troshin, N.E. Tyurin
Are there any clues for hadron asymptotics in the LHC data?
7 pages, 2 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss several clues related to the possible asymptotic behavior of hadron interactions arising on the base of performed analysis of the recent TOTEM data at the LHC and emphasize that the deep-elastic scattering can provide an important information on the asymptotical dependence via the unitarity relation.
[ { "created": "Mon, 4 Jan 2016 12:43:31 GMT", "version": "v1" } ]
2016-01-05
[ [ "Troshin", "S. M.", "" ], [ "Tyurin", "N. E.", "" ] ]
We discuss several clues related to the possible asymptotic behavior of hadron interactions arising on the base of performed analysis of the recent TOTEM data at the LHC and emphasize that the deep-elastic scattering can provide an important information on the asymptotical dependence via the unitarity relation.
hep-ph/9908436
Yue-Liang Wu
Yue-Liang Wu (ITP)
SO(3) Gauge model for neutrino masses and oscillations
latex, no figures, invited talk at the Sixth Topical Seminar on Neutrino and Astroparticle Physics, San Miniato, Italy, May 1999, to appear in Nucl. Phys. B (Proc. Suppl.)
Nucl.Phys.Proc.Suppl. 85 (2000) 193-198
10.1016/S0920-5632(00)00506-5
AS-ITP-99
hep-ph
null
I mainly describe neutrino masses and oscillations in the gauge model with $SO(3)_{F}$ lepton flavor symmetry and with two Higgs triplets. It is shown how the maximal mixing between $\nu_{\mu}$ and $\nu_{\tau}$ neutrinos comes out naturally after spontaneous breaking of the symmetry. The nearly two-flavor mixing scen...
[ { "created": "Mon, 23 Aug 1999 17:24:47 GMT", "version": "v1" } ]
2009-10-31
[ [ "Wu", "Yue-Liang", "", "ITP" ] ]
I mainly describe neutrino masses and oscillations in the gauge model with $SO(3)_{F}$ lepton flavor symmetry and with two Higgs triplets. It is shown how the maximal mixing between $\nu_{\mu}$ and $\nu_{\tau}$ neutrinos comes out naturally after spontaneous breaking of the symmetry. The nearly two-flavor mixing scenar...
hep-ph/0503179
Claudio Scrucca
G. Martinelli, M. Salvatori, C.A. Scrucca, L. Silvestrini
Minimal gauge-Higgs unification with a flavour symmetry
LaTex, 37 pages, 2 figures; some clarifying comments and a few references added
JHEP 0510:037,2005
10.1088/1126-6708/2005/10/037
FTUAM-05-3, IFT-UAM/CSIC-05-15, NEIP-05/03, ROMA-1385/04, TUM-HEP-578/05
hep-ph hep-th
null
We show that a flavour symmetry a la Froggatt-Nielsen can be naturally incorporated in models with gauge-Higgs unification, by exploiting the heavy fermions that are anyhow needed to realize realistic Yukawa couplings. The case of the minimal five-dimensional model, in which the SU(2)_L x U(1)_Y electroweak group is ...
[ { "created": "Fri, 18 Mar 2005 09:17:43 GMT", "version": "v1" }, { "created": "Fri, 14 Oct 2005 09:36:06 GMT", "version": "v2" } ]
2010-02-03
[ [ "Martinelli", "G.", "" ], [ "Salvatori", "M.", "" ], [ "Scrucca", "C. A.", "" ], [ "Silvestrini", "L.", "" ] ]
We show that a flavour symmetry a la Froggatt-Nielsen can be naturally incorporated in models with gauge-Higgs unification, by exploiting the heavy fermions that are anyhow needed to realize realistic Yukawa couplings. The case of the minimal five-dimensional model, in which the SU(2)_L x U(1)_Y electroweak group is en...
hep-ph/0606314
Rafel Escribano
Rafel Escribano (UAB & IFAE, Barcelona)
Scalar and vector meson exchange in V->P0P0gamma decays
42 pages, 11 figures. A new paragraph explaining the seminal contribution of Ref. [19] is added
Phys.Rev.D74:114020,2006
10.1103/PhysRevD.74.114020
UAB-FT-534
hep-ph hep-ex
null
The scalar contributions to the radiative decays of light vector mesons into a pair of neutral pseudoscalars, $V\to P^0P^0\gamma$, are studied within the framework of the Linear Sigma Model. This model has the advantage of incorporating not only the scalar resonances in an explicit way but also the constraints requir...
[ { "created": "Fri, 30 Jun 2006 01:12:47 GMT", "version": "v1" }, { "created": "Tue, 30 Jan 2007 11:58:33 GMT", "version": "v2" } ]
2008-11-26
[ [ "Escribano", "Rafel", "", "UAB & IFAE, Barcelona" ] ]
The scalar contributions to the radiative decays of light vector mesons into a pair of neutral pseudoscalars, $V\to P^0P^0\gamma$, are studied within the framework of the Linear Sigma Model. This model has the advantage of incorporating not only the scalar resonances in an explicit way but also the constraints required...
hep-ph/0305202
Masato Senami
Masato Senami and Katsuji Yamamoto
Leptogenesis with supersymmetric Higgs triplets in TeV region
8 Pages, 2 figures. The discussion about the stability of the VEV's of the Higgs triplets is added
Int.J.Mod.Phys. A21 (2006) 1291-1306
10.1142/S0217751X06029478
null
hep-ph
null
The leptogenesis with supersymmetric Higgs triplets is studied in the light of experimental verification in the TeV region. The lepton number asymmetry appears just after the inflation via multiscalar coherent evolution of Higgs triplets and antislepton on a flat manifold. If the Higgs triplet mass terms dominate ove...
[ { "created": "Mon, 19 May 2003 19:11:21 GMT", "version": "v1" }, { "created": "Thu, 5 Jun 2003 10:44:57 GMT", "version": "v2" }, { "created": "Wed, 7 Jul 2004 05:53:02 GMT", "version": "v3" }, { "created": "Thu, 22 Dec 2005 05:08:37 GMT", "version": "v4" } ]
2009-11-10
[ [ "Senami", "Masato", "" ], [ "Yamamoto", "Katsuji", "" ] ]
The leptogenesis with supersymmetric Higgs triplets is studied in the light of experimental verification in the TeV region. The lepton number asymmetry appears just after the inflation via multiscalar coherent evolution of Higgs triplets and antislepton on a flat manifold. If the Higgs triplet mass terms dominate over ...
hep-ph/9709280
Berthold Stech
Berthold Stech (University of Heidelberg)
Exclusive Hadronic B-Decays
11 pages, LaTeX, uses epsf.sty, one eps figure, plenary talk at the b20 Symposium, Chicago, July 1997
null
10.1063/1.55102
HD-THEP-97-48
hep-ph
null
Exclusive non-leptonic two-body decays are discussed on the basis of a generalized factorization approach which also includes non-factorizeable contributions. Numerous decay processes can be described satisfactorily. The success of the method makes possible the determination of decay constants from non-leptonic decay...
[ { "created": "Mon, 8 Sep 1997 13:26:58 GMT", "version": "v1" } ]
2009-10-30
[ [ "Stech", "Berthold", "", "University of Heidelberg" ] ]
Exclusive non-leptonic two-body decays are discussed on the basis of a generalized factorization approach which also includes non-factorizeable contributions. Numerous decay processes can be described satisfactorily. The success of the method makes possible the determination of decay constants from non-leptonic decays....
0710.1169
Ralf Hofmann
Ralf Hofmann
SU(2) Yang-Mills thermodynamics and photon physics
8 pages, 4 figures, talk given at QFext07 in Leipzig
null
null
KA-TP-20-2007
hep-ph
null
Based on quantitative predictions enabled by a nonperturbative approach to Yang-Mills thermodynamics it is explained why the physics of photon {\sl propagation} is not unlikely rooted in pure SU(2) gauge dynamics.
[ { "created": "Fri, 5 Oct 2007 10:06:01 GMT", "version": "v1" } ]
2007-10-08
[ [ "Hofmann", "Ralf", "" ] ]
Based on quantitative predictions enabled by a nonperturbative approach to Yang-Mills thermodynamics it is explained why the physics of photon {\sl propagation} is not unlikely rooted in pure SU(2) gauge dynamics.
2405.02222
Marcos Flores
Marcos M. Flores, Kalliopi Petraki
Unitarity in the non-relativistic regime and implications for dark matter
9 pages, 2 figures
null
null
null
hep-ph astro-ph.CO hep-th
http://creativecommons.org/licenses/by/4.0/
Unitarity sets upper limits on partial-wave elastic and inelastic cross-sections, which are often violated by perturbative computations. We discuss the dynamics underlying these limits in the non-relativistic regime, namely long-range interactions, and show how the resummation of the elastic 2-particle-irreducible di...
[ { "created": "Fri, 3 May 2024 16:28:20 GMT", "version": "v1" } ]
2024-05-06
[ [ "Flores", "Marcos M.", "" ], [ "Petraki", "Kalliopi", "" ] ]
Unitarity sets upper limits on partial-wave elastic and inelastic cross-sections, which are often violated by perturbative computations. We discuss the dynamics underlying these limits in the non-relativistic regime, namely long-range interactions, and show how the resummation of the elastic 2-particle-irreducible diag...
hep-ph/0503075
Filip Moortgat
R. Kinnunen, S. Lehti, F. Moortgat, A. Nikitenko, M. Spira
Measurement of the H/A -> tau tau cross section and possible constraints on tan beta
null
Eur.Phys.J.C40N5:23-32,2005
10.1140/EPJCD/S2005-02-003-3
CMS NOTE 2004/027
hep-ph
null
The achievable precision of the cross section times branching ratio measurement from the event rates is estimated for the MSSM H/A -> tau tau decay in the associated production process gg -> b bbar H/A at large tan beta in CMS. This work demonstrates that the above production and decay process exhibit a large sensiti...
[ { "created": "Tue, 8 Mar 2005 13:37:36 GMT", "version": "v1" } ]
2011-09-13
[ [ "Kinnunen", "R.", "" ], [ "Lehti", "S.", "" ], [ "Moortgat", "F.", "" ], [ "Nikitenko", "A.", "" ], [ "Spira", "M.", "" ] ]
The achievable precision of the cross section times branching ratio measurement from the event rates is estimated for the MSSM H/A -> tau tau decay in the associated production process gg -> b bbar H/A at large tan beta in CMS. This work demonstrates that the above production and decay process exhibit a large sensitivi...
1001.1089
Fulvia De Fazio
Pietro Colangelo and Fulvia De Fazio
Open charm meson spectroscopy: Where to place the latest piece of the puzzle
RevTeX, 5 pages, 1 eps figure
Phys.Rev.D81:094001,2010
10.1103/PhysRevD.81.094001
BARI-TH/618-10
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss how to classify the $c{\bar s}$ meson $D_{sJ}(3040)$ recently discovered by the BaBar Collaboration. We consider four possible assignments, together with signatures useful to distinguish among them.
[ { "created": "Thu, 7 Jan 2010 15:27:15 GMT", "version": "v1" } ]
2010-05-28
[ [ "Colangelo", "Pietro", "" ], [ "De Fazio", "Fulvia", "" ] ]
We discuss how to classify the $c{\bar s}$ meson $D_{sJ}(3040)$ recently discovered by the BaBar Collaboration. We consider four possible assignments, together with signatures useful to distinguish among them.
hep-ph/9210217
Jan T. Gammel
J. Tinka Gammel and John L. Gammel
A Non-Standard Quark Model and the Mass Difference $\Xi^- - \Xi^0$
15 pages, in latex using revtex macros, 2 figures in postscript, appended. NRaD.9210.001.GAM
null
null
null
hep-ph
null
We show that a highly unconventional theory, based on the 16 dimensional (${3\over2}$,${3\over2}$) irreducible representation of O(4), fits the masses of the baryons $\Xi^-$,$\Xi^0$,$\Sigma^-$,$\Sigma^0$,$\Sigma^+$,$\Lambda$,$p$,$n$ and the leptons $\mu$,$e$,$\nu_\mu$,$\nu_e$ to within current experimental error, yet...
[ { "created": "Wed, 7 Oct 1992 05:20:36 GMT", "version": "v1" } ]
2007-05-23
[ [ "Gammel", "J. Tinka", "" ], [ "Gammel", "John L.", "" ] ]
We show that a highly unconventional theory, based on the 16 dimensional (${3\over2}$,${3\over2}$) irreducible representation of O(4), fits the masses of the baryons $\Xi^-$,$\Xi^0$,$\Sigma^-$,$\Sigma^0$,$\Sigma^+$,$\Lambda$,$p$,$n$ and the leptons $\mu$,$e$,$\nu_\mu$,$\nu_e$ to within current experimental error, yet y...
hep-ph/0612163
Giovanni Salm\`e
J. P. B. C. de Melo (U. Cruzeiro do Sul), T. Frederico (ITA-CTA), E. Pace (U. "Tor Vergata"), S. Pisano (U. "La Sapienza"), G. Salme` (INFN-Rome)
Electromagnetic form factors of the nucleon in spacelike and timelike regions
8 pages, 9 figs., macro added. Proceedings of the XI Conf. on Problems in Theoretical Nuclear Physics, Cortona, Oct. 11-14, 2006
null
10.1142/9789812708793_0026
null
hep-ph
null
An approach for a unified description of the nucleon electromagnetic form factors in spacelike and timelike regions is presented. The main ingredients of our model are: $i)$ a Mandelstam formula for the matrix elements of the nucleon electromagnetic current; $ii)$ a 3-dimensional reduction of the problem on the Light...
[ { "created": "Wed, 13 Dec 2006 14:47:06 GMT", "version": "v1" } ]
2017-08-23
[ [ "de Melo", "J. P. B. C.", "", "U. Cruzeiro do Sul" ], [ "Frederico", "T.", "", "ITA-CTA" ], [ "Pace", "E.", "", "U. \"Tor Vergata\"" ], [ "Pisano", "S.", "", "U. \"La Sapienza\"" ], [ "Salme`", "G.", "", "INFN-Rome" ...
An approach for a unified description of the nucleon electromagnetic form factors in spacelike and timelike regions is presented. The main ingredients of our model are: $i)$ a Mandelstam formula for the matrix elements of the nucleon electromagnetic current; $ii)$ a 3-dimensional reduction of the problem on the Light-F...
hep-ph/0209339
Roman Buniy
Roman V. Buniy and Thomas W. Kephart
A model of glueballs
11 pages, 3 figures, 1 table; minor changes, comments added, typos corrected
Phys.Lett. B576 (2003) 127-134
10.1016/j.physletb.2003.09.081
null
hep-ph hep-ex
null
We model the observed glueball mass spectrum in terms of energies for tightly knotted and linked QCD flux tubes. The data is fit well with one parameter. We predict additional glueball masses.
[ { "created": "Fri, 27 Sep 2002 20:07:22 GMT", "version": "v1" }, { "created": "Sun, 26 Jan 2003 00:03:35 GMT", "version": "v2" }, { "created": "Wed, 9 Apr 2003 22:51:53 GMT", "version": "v3" } ]
2015-06-25
[ [ "Buniy", "Roman V.", "" ], [ "Kephart", "Thomas W.", "" ] ]
We model the observed glueball mass spectrum in terms of energies for tightly knotted and linked QCD flux tubes. The data is fit well with one parameter. We predict additional glueball masses.
2006.01812
James Mulligan
James Mulligan and Mateusz Ploskon
Identifying groomed jet splittings in heavy-ion collisions
Final version after journal review
Phys. Rev. C 102, 044913 (2020)
10.1103/PhysRevC.102.044913
null
hep-ph nucl-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Measurements of jet substructure in heavy-ion collisions may provide key insight to the nature of jet quenching in the quark-gluon plasma. Jet grooming techniques from high-energy physics have been applied to heavy-ion collisions in order to isolate theoretically controlled jet observables and explore possible modifi...
[ { "created": "Tue, 2 Jun 2020 17:47:08 GMT", "version": "v1" }, { "created": "Sat, 31 Oct 2020 00:06:54 GMT", "version": "v2" } ]
2020-11-03
[ [ "Mulligan", "James", "" ], [ "Ploskon", "Mateusz", "" ] ]
Measurements of jet substructure in heavy-ion collisions may provide key insight to the nature of jet quenching in the quark-gluon plasma. Jet grooming techniques from high-energy physics have been applied to heavy-ion collisions in order to isolate theoretically controlled jet observables and explore possible modifica...
2209.03772
Mingmei Xu
Donghai Zhang, Yeyin Zhao, Mingmei Xu, Yuanfang Wu
Large-rapidity ridge correlations from Color Glass Condensate
null
null
10.1103/PhysRevD.107.056017
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Within the Color Glass Condensate (CGC) effective field theory, considering the violation of boost invariance of the rapidity distribution, we correct the normalization scheme of the longitudinal rapidity ridge correlations. After this correction, the large-rapidity ridge correlation rebounds after bottoming, consist...
[ { "created": "Thu, 8 Sep 2022 12:29:10 GMT", "version": "v1" } ]
2023-04-05
[ [ "Zhang", "Donghai", "" ], [ "Zhao", "Yeyin", "" ], [ "Xu", "Mingmei", "" ], [ "Wu", "Yuanfang", "" ] ]
Within the Color Glass Condensate (CGC) effective field theory, considering the violation of boost invariance of the rapidity distribution, we correct the normalization scheme of the longitudinal rapidity ridge correlations. After this correction, the large-rapidity ridge correlation rebounds after bottoming, consisten...
2209.09261
Luc Darm\'e
Luc Darm\'e, Marco Mancini, Enrico Nardi and Mauro Raggi
Resonant search for the X17 boson at PADME
8 pages, 5 figures and 1 table. Version published in Physical Review D. Typos corrected in Eqs. 6 and 7
null
10.1103/PhysRevD.106.115036
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the experimental reach of the Frascati PADME experiment in searching for new light bosons via their resonant production in positron annihilation on fixed target atomic electrons. A scan in the mass range around 17 MeV will thoroughly probe the particle physics interpretation of the anomaly observed by the ...
[ { "created": "Mon, 19 Sep 2022 18:00:03 GMT", "version": "v1" }, { "created": "Fri, 29 Mar 2024 13:22:18 GMT", "version": "v2" } ]
2024-04-01
[ [ "Darmé", "Luc", "" ], [ "Mancini", "Marco", "" ], [ "Nardi", "Enrico", "" ], [ "Raggi", "Mauro", "" ] ]
We discuss the experimental reach of the Frascati PADME experiment in searching for new light bosons via their resonant production in positron annihilation on fixed target atomic electrons. A scan in the mass range around 17 MeV will thoroughly probe the particle physics interpretation of the anomaly observed by the AT...
0802.4301
George Leontaris
G.K. Leontaris
A U(3)_C X U(3)_L X U(3)_R gauge symmetry from intersecting D-branes
10 pages
Int.J.Mod.Phys.A23:2055-2066,2008
10.1142/S0217751X0804055X
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A three-family non-supersymmetric model with U(3)^3 gauge symmetry is analyzed in the context of intersecting D-branes. This is equivalent to the `trinification' model extended by three U(1) factors which survive as global symmetries in the low energy effective model. The Standard Model fermions are accommodated in t...
[ { "created": "Thu, 28 Feb 2008 22:14:04 GMT", "version": "v1" } ]
2008-11-26
[ [ "Leontaris", "G. K.", "" ] ]
A three-family non-supersymmetric model with U(3)^3 gauge symmetry is analyzed in the context of intersecting D-branes. This is equivalent to the `trinification' model extended by three U(1) factors which survive as global symmetries in the low energy effective model. The Standard Model fermions are accommodated in the...
hep-ph/9511425
Bertini Marc
M. Bertini, M. Giffon, L. Jenkovszky, F. Paccanoni, E. Predazzi
The Pomeron in Elastic and Deep Inelastic Scattering
32 pages in TeX; 27 figures (available on request from mbertini@lyohp0.in2p3.fr
Riv.Nuovo Cim. 19N1 (1996) 1-37
10.1007/BF02743817
LYCEN/95-37
hep-ph
null
We discuss some properties of the Pomeron in high energy elastic hadron-hadron and deep inelastic lepton-hadron scattering. A number of issues concerning the nature and the origin of the Pomeron are briefly recalled here. The novelty in this paper resides essentially in its presentation; we strive at discussing all t...
[ { "created": "Mon, 27 Nov 1995 18:20:23 GMT", "version": "v1" } ]
2015-06-25
[ [ "Bertini", "M.", "" ], [ "Giffon", "M.", "" ], [ "Jenkovszky", "L.", "" ], [ "Paccanoni", "F.", "" ], [ "Predazzi", "E.", "" ] ]
We discuss some properties of the Pomeron in high energy elastic hadron-hadron and deep inelastic lepton-hadron scattering. A number of issues concerning the nature and the origin of the Pomeron are briefly recalled here. The novelty in this paper resides essentially in its presentation; we strive at discussing all the...
1205.6190
Rabindra N. Mohapatra
Rabindra N. Mohapatra
Gauged Flavor, Supersymmetry and Grand Unification
Invited talk at the GUT 2012 workshop held in Kyoto, Japan in March, 2012
null
10.1063/1.4742073
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
I review a recent work on gauged flavor with left-right symmetry, where all masses and all Yukawa couplings owe their origin to spontaneous flavor symmetry breaking. This is suggested as a precursor to a full understanding of flavor of quarks and leptons. An essential ingredient of this approach is the existence of h...
[ { "created": "Mon, 28 May 2012 19:16:45 GMT", "version": "v1" } ]
2015-06-05
[ [ "Mohapatra", "Rabindra N.", "" ] ]
I review a recent work on gauged flavor with left-right symmetry, where all masses and all Yukawa couplings owe their origin to spontaneous flavor symmetry breaking. This is suggested as a precursor to a full understanding of flavor of quarks and leptons. An essential ingredient of this approach is the existence of hea...
hep-ph/0407159
Markus Schumacher
Klaus Desch (Universitaet Hamburg) and Markus Schumacher (Universitaet Bonn)
Model Independent Determination of the Top Yukawa Coupling from LHC and LC
A contribution to the LHC / LC Study Group document, 7 pages, 3 figures
Eur.Phys.J.C46:527-531,2006
10.1140/epjc/s2006-02534-6
null
hep-ph
null
We show how a measurement of the process pp-->t tbar H + X at the LHC and a measurement of the Higgs boson branching ratios BR(H-->b bar) and BR(H-->W+W-) at a future linear electron positron collider can be combined to extract a model-independent measurement of the top quark Yukawa coupling. We find that for 120 GeV...
[ { "created": "Wed, 14 Jul 2004 13:28:57 GMT", "version": "v1" } ]
2009-01-07
[ [ "Desch", "Klaus", "", "Universitaet Hamburg" ], [ "Schumacher", "Markus", "", "Universitaet\n Bonn" ] ]
We show how a measurement of the process pp-->t tbar H + X at the LHC and a measurement of the Higgs boson branching ratios BR(H-->b bar) and BR(H-->W+W-) at a future linear electron positron collider can be combined to extract a model-independent measurement of the top quark Yukawa coupling. We find that for 120 GeV <...
1809.06885
Wally Melnitchouk
J. J. Ethier, W. Melnitchouk, Fernanda Steffens, A. W. Thomas
Flavor symmetry breaking in the $\Delta$ sea
5 pages, 5 figures
Phys. Rev. D 100, 034014 (2019)
10.1103/PhysRevD.100.034014
ADP-18-23/T1071, JLAB-THY-18-2806
hep-ph hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The discovery of a sizeable asymmetry in the $\bar u$ and $\bar d$ distributions in the proton was one of the more consequential experimental findings in hadron physics last century. Although widely believed to be related to the fundamental role of chiral symmetry in QCD, a definitive verification of this hypothesis ...
[ { "created": "Tue, 18 Sep 2018 18:43:25 GMT", "version": "v1" } ]
2019-08-21
[ [ "Ethier", "J. J.", "" ], [ "Melnitchouk", "W.", "" ], [ "Steffens", "Fernanda", "" ], [ "Thomas", "A. W.", "" ] ]
The discovery of a sizeable asymmetry in the $\bar u$ and $\bar d$ distributions in the proton was one of the more consequential experimental findings in hadron physics last century. Although widely believed to be related to the fundamental role of chiral symmetry in QCD, a definitive verification of this hypothesis ha...
hep-ph/0403114
Mauro Anselmino
M. Anselmino, V. Barone, A. Drago and N.N. Nikolaev
Accessing transversity via J/Psi production in polarized p-pbar interactions
10 pages, 2 figures. Version accepted for publication in PLB; comments and references added
Phys.Lett. B594 (2004) 97-104
10.1016/j.physletb.2004.05.029
null
hep-ph
null
We discuss the possibility of a direct access to transversity distributions by measuring the double transverse spin asymmetry A_TT in p pbar --> J/Psi + X --> l^- l^+ + X processes at future GSI-HESR experiments with polarized protons and anti-protons. In the J/Psi resonance production region, with 30 < s < 45 GeV^2,...
[ { "created": "Wed, 10 Mar 2004 16:39:09 GMT", "version": "v1" }, { "created": "Sat, 22 May 2004 08:58:44 GMT", "version": "v2" } ]
2009-11-10
[ [ "Anselmino", "M.", "" ], [ "Barone", "V.", "" ], [ "Drago", "A.", "" ], [ "Nikolaev", "N. N.", "" ] ]
We discuss the possibility of a direct access to transversity distributions by measuring the double transverse spin asymmetry A_TT in p pbar --> J/Psi + X --> l^- l^+ + X processes at future GSI-HESR experiments with polarized protons and anti-protons. In the J/Psi resonance production region, with 30 < s < 45 GeV^2, b...
1812.07336
Tom van Daal
Tom van Daal
Mapping the internal structure of hadrons through color and spin effects
PhD thesis, successfully defended at University of Groningen on December 13, 2018. Note that some figures have shifted a bit due to the fact that the original thesis format is 17 by 24 cm. This thesis has been published by the University of Groningen and can be found here in the original format: https://www.r...
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Originally it was thought that the proton is not divisible into smaller particles. However, from collision experiments it follows that it consists of a 'soup' of countless 'colored' elementary particles such as quarks and gluons that are kept together by the strong nuclear force. The particles constituting the proton...
[ { "created": "Tue, 18 Dec 2018 12:52:49 GMT", "version": "v1" } ]
2018-12-19
[ [ "van Daal", "Tom", "" ] ]
Originally it was thought that the proton is not divisible into smaller particles. However, from collision experiments it follows that it consists of a 'soup' of countless 'colored' elementary particles such as quarks and gluons that are kept together by the strong nuclear force. The particles constituting the proton a...
2302.00508
Balbeer Singh
Rishi Sharma and Balbeer Singh
Energy hierarchies governing quarkonium dynamics in Heavy Ion Collisions
15 pages, 10 figures
null
null
null
hep-ph
http://creativecommons.org/publicdomain/zero/1.0/
In this paper, we critically examine hierarchies between energy scales that determine quarkonium dynamics in the quark gluon plasma. A particularly important role is played by the ratio of the binding energy of species ($E_b$) and the medium scales; temperature ($T$) and Debye mass ($m_D$). It is well known that if t...
[ { "created": "Wed, 1 Feb 2023 15:28:50 GMT", "version": "v1" } ]
2023-02-02
[ [ "Sharma", "Rishi", "" ], [ "Singh", "Balbeer", "" ] ]
In this paper, we critically examine hierarchies between energy scales that determine quarkonium dynamics in the quark gluon plasma. A particularly important role is played by the ratio of the binding energy of species ($E_b$) and the medium scales; temperature ($T$) and Debye mass ($m_D$). It is well known that if the...
hep-ph/0104119
Yury F. Pirogov
Yu. F. Pirogov (IHEP, Protvino)
Space-time symplectic extension
15 pp, LaTeX
Phys.Atom.Nucl. 66 (2003) 136-143; Yad.Fiz. 66 (2003) 138-145
10.1134/1.1540668
IHEP 2001-19
hep-ph gr-qc quant-ph
null
It is conjectured that in the origin of space-time there lies a symplectic rather than metric structure. The complex symplectic symmetry Sp(2l,C), l\ge1 instead of the pseudo-orthogonal one SO(1,d-1), d\ge4 is proposed as the space-time local structure group. A discrete sequence of the metric space-times of the fixed...
[ { "created": "Wed, 11 Apr 2001 20:35:59 GMT", "version": "v1" } ]
2015-06-25
[ [ "Pirogov", "Yu. F.", "", "IHEP, Protvino" ] ]
It is conjectured that in the origin of space-time there lies a symplectic rather than metric structure. The complex symplectic symmetry Sp(2l,C), l\ge1 instead of the pseudo-orthogonal one SO(1,d-1), d\ge4 is proposed as the space-time local structure group. A discrete sequence of the metric space-times of the fixed d...
2308.12392
Zeynab Hashimli
Shahin Mamedov, Zeynab Hashimli and Shahriyar Jafarzade
Tensor meson couplings in AdS/QCD
14 pages, 2 figures
null
10.1103/PhysRevD.108.114032
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We study the hadronic and radiative couplings of the $f_2(1270)$ meson within the hard- and soft-wall models of AdS/QCD. The results for the tensor meson-nucleon-nucleon coupling ($g_{f_2NN}$) and tensor meson-photon-vector meson coupling ($g_{f_2\gamma\rho}$) are compared to the ones obtained by using the dispersion...
[ { "created": "Wed, 23 Aug 2023 19:20:06 GMT", "version": "v1" }, { "created": "Thu, 28 Dec 2023 09:34:52 GMT", "version": "v2" } ]
2024-02-07
[ [ "Mamedov", "Shahin", "" ], [ "Hashimli", "Zeynab", "" ], [ "Jafarzade", "Shahriyar", "" ] ]
We study the hadronic and radiative couplings of the $f_2(1270)$ meson within the hard- and soft-wall models of AdS/QCD. The results for the tensor meson-nucleon-nucleon coupling ($g_{f_2NN}$) and tensor meson-photon-vector meson coupling ($g_{f_2\gamma\rho}$) are compared to the ones obtained by using the dispersion r...
hep-ph/0512210
Gavin Salam
Matteo Cacciari and Gavin P. Salam
Dispelling the N^3 myth for the Kt jet-finder
11 pages, 3 figures; v2, to appear in Phys.Lett.B, includes an extra section briefly discussing the issues of jet areas and pileup subtraction, and also the Cambridge/Aachen jet finder
Phys.Lett.B641:57-61,2006
10.1016/j.physletb.2006.08.037
LPTHE-05-32
hep-ph
null
At high-energy colliders, jets of hadrons are the observable counterparts of the perturbative concepts of quarks and gluons. Good procedures for identifying jets are central to experimental analyses and comparisons with theory. The Kt family of successive recombination jet finders has been widely advocated because of...
[ { "created": "Fri, 16 Dec 2005 08:26:46 GMT", "version": "v1" }, { "created": "Thu, 17 Aug 2006 09:18:49 GMT", "version": "v2" } ]
2008-11-26
[ [ "Cacciari", "Matteo", "" ], [ "Salam", "Gavin P.", "" ] ]
At high-energy colliders, jets of hadrons are the observable counterparts of the perturbative concepts of quarks and gluons. Good procedures for identifying jets are central to experimental analyses and comparisons with theory. The Kt family of successive recombination jet finders has been widely advocated because of i...
0710.2230
Kingman Cheung
Kingman Cheung, Wai-Yee Keung, Tzu-Chiang Yuan
Collider signatures for unparticle
Submitted for the SUSY07 proceedings. 4 pages, 6 figures
null
null
null
hep-ph
null
We summarize the works presented in Refs. \cite{1,2} on collider phenomenology of the unparticle physics associated with an exact scale invariant sector possessing a non-trivial infrared fixed point at a high energy scale. We give highlights on the motivations of unparticle and derivation of the phase space and the u...
[ { "created": "Thu, 11 Oct 2007 12:19:04 GMT", "version": "v1" } ]
2007-10-12
[ [ "Cheung", "Kingman", "" ], [ "Keung", "Wai-Yee", "" ], [ "Yuan", "Tzu-Chiang", "" ] ]
We summarize the works presented in Refs. \cite{1,2} on collider phenomenology of the unparticle physics associated with an exact scale invariant sector possessing a non-trivial infrared fixed point at a high energy scale. We give highlights on the motivations of unparticle and derivation of the phase space and the unp...
hep-ph/0311184
Sergey Alekhin
S.Alekhin (IHEP, Protvino)
NNLO parton distributions from deep-inelastic-scattering data
5 pages, LATEX, 3 figures (EPS). Talk given at 11th International Workshop on Deep Inelastic Scattering (DIS 2003), St. Petersburg, Russia, 23-27 Apr 2003; one reference added in v2
null
null
null
hep-ph
null
The parton distributions functions (PDFs) derived from the NNLO QCD analysis of existing light-targets deep-inelastic-scattering data are presented. The NLO and NNLO PDFs are compared in order to analyze perturbative stability of the analysis and estimate impact of the higher-order QCD corrections. The main theoretic...
[ { "created": "Fri, 14 Nov 2003 10:09:12 GMT", "version": "v1" }, { "created": "Mon, 17 Nov 2003 17:40:45 GMT", "version": "v2" } ]
2007-05-23
[ [ "Alekhin", "S.", "", "IHEP, Protvino" ] ]
The parton distributions functions (PDFs) derived from the NNLO QCD analysis of existing light-targets deep-inelastic-scattering data are presented. The NLO and NNLO PDFs are compared in order to analyze perturbative stability of the analysis and estimate impact of the higher-order QCD corrections. The main theoretical...
hep-ph/9302278
Alick MacPherson
Alick L. Macpherson and Bruce A. Campbell
Toponium Tests Of Top-Quark Higgs Bags
LATEX file;9 pages, 3 figures (not included, available on request); preprint number: Alberta Thy-9-93
Phys.Lett. B306 (1993) 379-385
10.1016/0370-2693(93)90094-X
null
hep-ph
null
Recently it has been suggested that top quarks, or very massive fourth generation quarks, might surround themselves with a Higgs "bag" of deformation of the Higgs expectation value from its vacuum magnitude. In this paper we address the question of whether such nonlinear Higgs-top interaction effects are subject to e...
[ { "created": "Fri, 19 Feb 1993 05:03:16 GMT", "version": "v1" }, { "created": "Fri, 19 Feb 1993 05:59:06 GMT", "version": "v2" } ]
2009-10-22
[ [ "Macpherson", "Alick L.", "" ], [ "Campbell", "Bruce A.", "" ] ]
Recently it has been suggested that top quarks, or very massive fourth generation quarks, might surround themselves with a Higgs "bag" of deformation of the Higgs expectation value from its vacuum magnitude. In this paper we address the question of whether such nonlinear Higgs-top interaction effects are subject to exp...
hep-ph/9812527
German Sharov
V. P. Petrov, G. S. Sharov
Rotational Stability of Linear String Baryon Configuration
13 pages, 1 figure, LaTeX
null
null
TSU-98-03
hep-ph
null
For the linear baryon string model with three massive points (three quarks) connected sequentially by the relativistic strings the initial-boundary value problem is stated and solved in general. This problem implies defining a classical motion of the system on the base of given initial position and initial velocities...
[ { "created": "Wed, 30 Dec 1998 17:25:53 GMT", "version": "v1" } ]
2007-05-23
[ [ "Petrov", "V. P.", "" ], [ "Sharov", "G. S.", "" ] ]
For the linear baryon string model with three massive points (three quarks) connected sequentially by the relativistic strings the initial-boundary value problem is stated and solved in general. This problem implies defining a classical motion of the system on the base of given initial position and initial velocities o...
1906.00978
Nicol\'as Neill
A. E. C\'arcamo Hern\'andez, Marcela Gonz\'alez, Nicol\'as A. Neill
Low scale type I seesaw model for lepton masses and mixings
17 pages, 2 figures; v2 matches PRD version
Phys. Rev. D 101, 035005 (2020)
10.1103/PhysRevD.101.035005
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In contrast to the original type I seesaw mechanism that requires right-handed Majorana neutrinos at energies much higher than the electroweak scale, the so-called low scale seesaw models allow lighter masses for the additional neutrinos. Here we propose an alternative low scale type I seesaw model, where neither lin...
[ { "created": "Mon, 3 Jun 2019 18:00:03 GMT", "version": "v1" }, { "created": "Mon, 10 Feb 2020 14:23:43 GMT", "version": "v2" } ]
2020-02-11
[ [ "Hernández", "A. E. Cárcamo", "" ], [ "González", "Marcela", "" ], [ "Neill", "Nicolás A.", "" ] ]
In contrast to the original type I seesaw mechanism that requires right-handed Majorana neutrinos at energies much higher than the electroweak scale, the so-called low scale seesaw models allow lighter masses for the additional neutrinos. Here we propose an alternative low scale type I seesaw model, where neither linea...
hep-ph/0008122
J. Smit
M. Salle, J. Smit and J.C. Vink
Twin Peaks
Presented at SEWM 2000, language corrections
null
10.1142/9789812799913_0043
null
hep-ph
null
The on-shell imaginary part of the retarded selfenergy of massive $\vr^4$ theory in 1+1 dimensions is logarithmically infrared divergent. This leads to a zero in the spectral function, separating its usual bump into two. The twin peaks interfere in time-dependent correlation functions, which causes oscillating modula...
[ { "created": "Sat, 12 Aug 2000 11:08:51 GMT", "version": "v1" }, { "created": "Mon, 23 Oct 2000 17:10:10 GMT", "version": "v2" } ]
2017-08-23
[ [ "Salle", "M.", "" ], [ "Smit", "J.", "" ], [ "Vink", "J. C.", "" ] ]
The on-shell imaginary part of the retarded selfenergy of massive $\vr^4$ theory in 1+1 dimensions is logarithmically infrared divergent. This leads to a zero in the spectral function, separating its usual bump into two. The twin peaks interfere in time-dependent correlation functions, which causes oscillating modulati...
1209.4733
Wieslaw Placzek
M. W. Krasny and W. Placzek
Charge asymmetries of lepton transverse momenta in Drell-Yan processes at the LHC
18 pages, 8 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Charged lepton transverse momenta in the Drell-Yan processes play an important role at the LHC in precision measurements of the Standard Model parameters, such as the W-boson mass and width, their charge asymmetries and sin^2(theta_W). Therefore, their distributions should be described as accurate as possible by the ...
[ { "created": "Fri, 21 Sep 2012 07:53:25 GMT", "version": "v1" } ]
2012-09-24
[ [ "Krasny", "M. W.", "" ], [ "Placzek", "W.", "" ] ]
Charged lepton transverse momenta in the Drell-Yan processes play an important role at the LHC in precision measurements of the Standard Model parameters, such as the W-boson mass and width, their charge asymmetries and sin^2(theta_W). Therefore, their distributions should be described as accurate as possible by the Mo...
1204.2665
Antoni Szczurek
Antoni Szczurek
New mechanisms of charm production
20 pages, 17 figures, presented at the workshop Epihany 2012, January 9-11, Cracow, Poland
null
null
null
hep-ph hep-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss production of charm quarks, mesons as well as nonphotonic electrons in $pp$ scattering at RHIC. The distributions in rapidity and transverse momentum of charm and bottom quarks/antiquarks are calculated in the $k_t$-factorization approach. The hadronization of heavy quarks is done by means of fenomenologic...
[ { "created": "Thu, 12 Apr 2012 09:22:40 GMT", "version": "v1" } ]
2012-04-13
[ [ "Szczurek", "Antoni", "" ] ]
We discuss production of charm quarks, mesons as well as nonphotonic electrons in $pp$ scattering at RHIC. The distributions in rapidity and transverse momentum of charm and bottom quarks/antiquarks are calculated in the $k_t$-factorization approach. The hadronization of heavy quarks is done by means of fenomenological...
1009.3655
Kuang-Ta Chao
Yan-Qing Ma, Kai Wang, Kuang-Ta Chao
J/psi (psi') production at the Tevatron and LHC at O(\alpha_s^4v^4) in nonrelativistic QCD
Version published in PRL, 4 pages, 4 figures
Phys.Rev.Lett.106:042002,2011
10.1103/PhysRevLett.106.042002
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present a complete evaluation for $\jpsi(\psip)$ prompt production at the Tevatron and LHC at next-to-leading order in nonrelativistic QCD, including color-singlet, color-octet, and higher charmonia feeddown contributions. The short-distance coefficients of $\pj$ at next-to-leading order are found to be larger tha...
[ { "created": "Sun, 19 Sep 2010 18:30:14 GMT", "version": "v1" }, { "created": "Thu, 27 Jan 2011 16:14:46 GMT", "version": "v2" } ]
2011-02-02
[ [ "Ma", "Yan-Qing", "" ], [ "Wang", "Kai", "" ], [ "Chao", "Kuang-Ta", "" ] ]
We present a complete evaluation for $\jpsi(\psip)$ prompt production at the Tevatron and LHC at next-to-leading order in nonrelativistic QCD, including color-singlet, color-octet, and higher charmonia feeddown contributions. The short-distance coefficients of $\pj$ at next-to-leading order are found to be larger than ...
1501.02803
Zhengkang Zhang
Alexey A. Petrov, Stefan Pokorski, James D. Wells and Zhengkang Zhang
The role of low-energy observables in precision Higgs analysis
21 pages, 2 figures; v2: minor changes, typos corrected
Phys. Rev. D 91, 073001 (2015)
10.1103/PhysRevD.91.073001
FERMILAB-Pub-15-001-T, WSU-HEP-1501, MCTP-15-01
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A conventional approach to precision calculations of Higgs boson observables uses quark masses $m_c$ and $m_b$ as inputs. However, quark masses are single numbers that hide a variety of low-energy data from which they are extracted, and also hide the various sources of theoretical uncertainties and correlations with ...
[ { "created": "Mon, 12 Jan 2015 21:00:12 GMT", "version": "v1" }, { "created": "Wed, 1 Apr 2015 20:24:09 GMT", "version": "v2" } ]
2015-04-08
[ [ "Petrov", "Alexey A.", "" ], [ "Pokorski", "Stefan", "" ], [ "Wells", "James D.", "" ], [ "Zhang", "Zhengkang", "" ] ]
A conventional approach to precision calculations of Higgs boson observables uses quark masses $m_c$ and $m_b$ as inputs. However, quark masses are single numbers that hide a variety of low-energy data from which they are extracted, and also hide the various sources of theoretical uncertainties and correlations with ad...
hep-ph/0611232
Stefan Antusch
S. Antusch, A. M. Teixeira
Towards constraints on the SUSY seesaw from flavour-dependent leptogenesis
42 pages, 12 figures; final version published in JCAP; numerical results for the efficiency factor can be downloaded from http://www.newphysics.eu/leptogenesis/
JCAP 0702:024,2007
10.1088/1475-7516/2007/02/024
FTUAM 06-17, IFT-UAM/CSIC 06-54, LPT-ORSAY-06-69
hep-ph
null
We systematically investigate constraints on the parameters of the supersymmetric type-I seesaw mechanism from the requirement of successful thermal leptogenesis in the presence of upper bounds on the reheat temperature $T_\mathrm{RH}$ of the early Universe. To this end, we solve the flavour-dependent Boltzmann equat...
[ { "created": "Fri, 17 Nov 2006 11:25:29 GMT", "version": "v1" }, { "created": "Thu, 19 Apr 2007 15:06:38 GMT", "version": "v2" } ]
2010-10-27
[ [ "Antusch", "S.", "" ], [ "Teixeira", "A. M.", "" ] ]
We systematically investigate constraints on the parameters of the supersymmetric type-I seesaw mechanism from the requirement of successful thermal leptogenesis in the presence of upper bounds on the reheat temperature $T_\mathrm{RH}$ of the early Universe. To this end, we solve the flavour-dependent Boltzmann equatio...
1111.5821
Tord Riemann
J. Fleischer, T. Riemann
A solution for tensor reduction of one-loop N-point functions with N >= 6
11 pages
null
10.1016/j.physletb.2011.12.060
DESY 11-207, BI-TP 2011/38, SFB/CPP-11-69, LPN 11-65
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Collisions at the LHC produce many-particle final states, and for precise predictions the one-loop $N$-point corrections are needed. We study here the tensor reduction for Feynman integrals with $N \ge 6$. A general, recursive solution by Binoth et al. expresses $N$-point Feynman integrals of rank $R$ in terms of $(N...
[ { "created": "Thu, 24 Nov 2011 17:34:44 GMT", "version": "v1" } ]
2015-06-03
[ [ "Fleischer", "J.", "" ], [ "Riemann", "T.", "" ] ]
Collisions at the LHC produce many-particle final states, and for precise predictions the one-loop $N$-point corrections are needed. We study here the tensor reduction for Feynman integrals with $N \ge 6$. A general, recursive solution by Binoth et al. expresses $N$-point Feynman integrals of rank $R$ in terms of $(N-1...
1602.05539
Yu-Jie Zhang Dr.
Yu-Jie Zhang, Bin-Bin Zhou, Jia-Jia Sun
The Fourth Generation Quark and the 750 GeV Diphoton Excess
null
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Recently, the CMS and ATLAS collaborations have reported a diphoton peak at 750 GeV in the RunII of LHC at 13 TeV. We assume that the heavy fourth generation quark doublet $z,~y$ with $380 $GeV mass, and the width of $z,t$ is much less $b$ quark. Then we show that the contributions of the $(z \bar z+y \bar y)/\sqrt{2...
[ { "created": "Tue, 5 Jan 2016 00:08:45 GMT", "version": "v1" } ]
2016-02-18
[ [ "Zhang", "Yu-Jie", "" ], [ "Zhou", "Bin-Bin", "" ], [ "Sun", "Jia-Jia", "" ] ]
Recently, the CMS and ATLAS collaborations have reported a diphoton peak at 750 GeV in the RunII of LHC at 13 TeV. We assume that the heavy fourth generation quark doublet $z,~y$ with $380 $GeV mass, and the width of $z,t$ is much less $b$ quark. Then we show that the contributions of the $(z \bar z+y \bar y)/\sqrt{2}$...
2306.05797
Venkata Suryanarayana Mummidi
V. Suryanarayana Mummidi, Priyanka Lamba, Sudhir K. Vempati
Supersymmetry : A decade after Higgs discovery
15 pages, 11 figures, 3 tables. Accepted for publication in Indian Journal of Physics
null
10.1007/s12648-023-02812-x
null
hep-ph hep-th
http://creativecommons.org/licenses/by-nc-sa/4.0/
Supersymmetric extensions of the Standard Model have been in vogue for over half a century. They have many interesting theoretical properties like calculability, absence of quadratic divergences, and phenomenologically impactful features like gauge coupling unification, dark matter candidates, signatures at present a...
[ { "created": "Fri, 9 Jun 2023 10:29:35 GMT", "version": "v1" } ]
2023-07-26
[ [ "Mummidi", "V. Suryanarayana", "" ], [ "Lamba", "Priyanka", "" ], [ "Vempati", "Sudhir K.", "" ] ]
Supersymmetric extensions of the Standard Model have been in vogue for over half a century. They have many interesting theoretical properties like calculability, absence of quadratic divergences, and phenomenologically impactful features like gauge coupling unification, dark matter candidates, signatures at present and...
hep-ph/0502094
Iain W. Stewart
Christian W. Bauer, Dan Pirjol, Ira Z. Rothstein, Iain W. Stewart
On Differences Between SCET and QCDF for B->pi pi Decays
7 pages
Phys.Rev. D72 (2005) 098502
10.1103/PhysRevD.72.098502
CALT 68-2540, MIT-CTP 3603
hep-ph
null
We give a detailed description of the differences between the factorization and results derived from SCET and QCDF for decays B -> M1 M2. This serves as a reply to a comment about our work "B-> M1 M2: Factorization, charming penguins, strong phases, and polarization" [1] made by the authors in [2]. We disagree with t...
[ { "created": "Thu, 10 Feb 2005 16:03:35 GMT", "version": "v1" } ]
2013-05-29
[ [ "Bauer", "Christian W.", "" ], [ "Pirjol", "Dan", "" ], [ "Rothstein", "Ira Z.", "" ], [ "Stewart", "Iain W.", "" ] ]
We give a detailed description of the differences between the factorization and results derived from SCET and QCDF for decays B -> M1 M2. This serves as a reply to a comment about our work "B-> M1 M2: Factorization, charming penguins, strong phases, and polarization" [1] made by the authors in [2]. We disagree with the...
2111.07531
Muhammad Ajaz
Muhammad Waqas, Lu-Meng Liu, Guang-Xiong Peng, Muhammad Ajaz
Observation of different scenarios in different temperatures in small and large collision systems
23 pages, 12 figures
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We used the modified Hagedron function and analyzed the experimental data measured by the BRAHMS, STAR, PHENIX and ALICE Collaborations in Copper-Copper, Gold-Gold, deuteron-Gold, Lead-Lead, proton-Lead and proton-proton collisions, and extracted the related parameters (kinetic freeze-out temperature, transverse flow...
[ { "created": "Mon, 15 Nov 2021 04:33:21 GMT", "version": "v1" }, { "created": "Tue, 16 Nov 2021 15:39:44 GMT", "version": "v2" } ]
2021-11-17
[ [ "Waqas", "Muhammad", "" ], [ "Liu", "Lu-Meng", "" ], [ "Peng", "Guang-Xiong", "" ], [ "Ajaz", "Muhammad", "" ] ]
We used the modified Hagedron function and analyzed the experimental data measured by the BRAHMS, STAR, PHENIX and ALICE Collaborations in Copper-Copper, Gold-Gold, deuteron-Gold, Lead-Lead, proton-Lead and proton-proton collisions, and extracted the related parameters (kinetic freeze-out temperature, transverse flow v...
hep-ph/9407276
Doreen Wackeroth
Stefan Pokorski
Top Quark Mass and Supersymmetry
6 pages
Nucl.Phys.Proc.Suppl. 37B (1994) 50-55
10.1016/0920-5632(94)90660-2
null
hep-ph
null
We summarize the expectations for the top quark mass in supersymmetric models and discuss the potential implications of its value measured by the CDF group in Fermilab.
[ { "created": "Tue, 12 Jul 1994 09:42:52 GMT", "version": "v1" } ]
2009-10-28
[ [ "Pokorski", "Stefan", "" ] ]
We summarize the expectations for the top quark mass in supersymmetric models and discuss the potential implications of its value measured by the CDF group in Fermilab.
hep-ph/9702342
Ramon Munoz Tapia
F. del Aguila, A. Culatti, R. Munoz-Tapia and M. Perez-Victoria
Supergravity corrections to $(g-2)_l$ in differential renormalization
23 pages, LaTeX, 4 PostScript figures embedded with epsf ver. 1.13. Complete ps paper and figures available also at ftp://ftae3.ugr.es/pub/rmt/ugft71.ps
Nucl.Phys. B504 (1997) 532-550
10.1016/S0550-3213(97)00451-3
UG-FT-71 and DFPD 97/TH/07
hep-ph hep-th
null
The method of differential renormalization is extended to the calculation of the one-loop graviton and gravitino corrections to $(g-2)_l$ in unbroken supergravity. Rewriting the singular contributions of all the diagrams in terms of only one singular function, U(1) gauge invariance and supersymmetry are preserved. We...
[ { "created": "Fri, 14 Feb 1997 23:44:45 GMT", "version": "v1" } ]
2009-10-30
[ [ "del Aguila", "F.", "" ], [ "Culatti", "A.", "" ], [ "Munoz-Tapia", "R.", "" ], [ "Perez-Victoria", "M.", "" ] ]
The method of differential renormalization is extended to the calculation of the one-loop graviton and gravitino corrections to $(g-2)_l$ in unbroken supergravity. Rewriting the singular contributions of all the diagrams in terms of only one singular function, U(1) gauge invariance and supersymmetry are preserved. We c...
1212.6818
Jaime Hern\'andez-S\'anchez Dr.
J. Hern\'andez-S\'anchez, S. Moretti, R. Noriega-Papaqui and A. Rosado
Off-diagonal terms in Yukawa textures of the Type-III 2-Higgs doublet model and light charged Higgs boson phenomenology
50 pages, 22 figures; version accepted by JHEP. arXiv admin note: text overlap with arXiv:1203.5769; and text overlap with arXiv:0906.5139, arXiv:1006.0470, arXiv:hep-ph/0309103 by other authors. text overlap with arXiv:1006.0470, arXiv:0906.5139 by other authors
null
null
DCP-12-06; SHEP-12-03
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss flavor-violating constraints and consequently possible charged Higgs boson phenomenology emerging from a four-zero Yukawa texture embedded within the Type-III 2-Higgs Doublet Model (2HDM-III). Firstly, we show in detail how we can obtain several kinds of 2HDMs when some parameters in the Yukawa texture are...
[ { "created": "Mon, 31 Dec 2012 04:49:38 GMT", "version": "v1" }, { "created": "Wed, 16 Jan 2013 19:50:55 GMT", "version": "v2" }, { "created": "Wed, 26 Jun 2013 04:26:56 GMT", "version": "v3" } ]
2013-06-27
[ [ "Hernández-Sánchez", "J.", "" ], [ "Moretti", "S.", "" ], [ "Noriega-Papaqui", "R.", "" ], [ "Rosado", "A.", "" ] ]
We discuss flavor-violating constraints and consequently possible charged Higgs boson phenomenology emerging from a four-zero Yukawa texture embedded within the Type-III 2-Higgs Doublet Model (2HDM-III). Firstly, we show in detail how we can obtain several kinds of 2HDMs when some parameters in the Yukawa texture are a...
0811.3719
Roshan Foadi
Roshan Foadi, Matti J\"arvinen, Francesco Sannino
Unitarity in Technicolor
23 pages, 5 figures
Phys.Rev.D79:035010,2009
10.1103/PhysRevD.79.035010
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the longitudinal $WW$ scattering in models of dynamical electroweak symmetry breaking featuring a spin one axial and vector state and a composite Higgs. We also investigate the effects of a composite spin two state which has the same properties of a massive graviton. Any model of dynamical electroweak ...
[ { "created": "Sun, 23 Nov 2008 00:08:58 GMT", "version": "v1" }, { "created": "Sun, 30 Nov 2008 16:40:23 GMT", "version": "v2" } ]
2010-01-08
[ [ "Foadi", "Roshan", "" ], [ "Järvinen", "Matti", "" ], [ "Sannino", "Francesco", "" ] ]
We investigate the longitudinal $WW$ scattering in models of dynamical electroweak symmetry breaking featuring a spin one axial and vector state and a composite Higgs. We also investigate the effects of a composite spin two state which has the same properties of a massive graviton. Any model of dynamical electroweak sy...
1701.04269
Oleksandr Gituliar
O. Gituliar, V. Magerya
Fuchsia: a tool for reducing differential equations for Feynman master integrals to epsilon form
20 pages
null
10.1016/j.cpc.2017.05.004
DESY-16-219
hep-ph math-ph math.CA math.MP
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present $\text{Fuchsia}$ $-$ an implementation of the Lee algorithm, which for a given system of ordinary differential equations with rational coefficients $\partial_x\,\mathbf{f}(x,\epsilon) = \mathbb{A}(x,\epsilon)\,\mathbf{f}(x,\epsilon)$ finds a basis transformation $\mathbb{T}(x,\epsilon)$, i.e., $\mathbf{f}(...
[ { "created": "Mon, 16 Jan 2017 12:52:27 GMT", "version": "v1" } ]
2017-09-13
[ [ "Gituliar", "O.", "" ], [ "Magerya", "V.", "" ] ]
We present $\text{Fuchsia}$ $-$ an implementation of the Lee algorithm, which for a given system of ordinary differential equations with rational coefficients $\partial_x\,\mathbf{f}(x,\epsilon) = \mathbb{A}(x,\epsilon)\,\mathbf{f}(x,\epsilon)$ finds a basis transformation $\mathbb{T}(x,\epsilon)$, i.e., $\mathbf{f}(x,...
hep-ph/0510067
Grzegorz Wilk
O.V.Utyuzh, G.Wilk, Z.Wlodarczyk
Information theory point of view on multiparticle production processes
Based on talks given at the 6th International Workshop on Very High Multiplicity Physics, JINR Dubna, 16-17 April 2005 (by. O.V.U.) and at the International Conference New Trends In High-Energy Physics, Yalta, Crimea, Ukraine, September 10-17, 2005 (G.W); 6 pages, 1 figure
null
null
null
hep-ph nucl-th
null
We review hitherto attempts to look at the multiparticle production processes from the Information Theory point of view (both in its extensive and nonextensive versions).
[ { "created": "Thu, 6 Oct 2005 09:16:56 GMT", "version": "v1" } ]
2016-09-06
[ [ "Utyuzh", "O. V.", "" ], [ "Wilk", "G.", "" ], [ "Wlodarczyk", "Z.", "" ] ]
We review hitherto attempts to look at the multiparticle production processes from the Information Theory point of view (both in its extensive and nonextensive versions).
0705.0219
Koichi Hamaguchi
K. Hamaguchi, S. Shirai and T. T. Yanagida
Determining the Mass for a Light Gravitino
9 pages, 12 figures
Phys.Lett.B651:44-48,2007
10.1016/j.physletb.2007.05.063
UT-07-15
hep-ph
null
Gauge mediated supersymmetry breaking scenarios with an ultra-light gravitino of mass m_{3/2}=1-10 eV are very interesting, since there is no cosmological gravitino problem. We propose a new experimental determination of the gravitino mass for such an ultra-light gravitino, by measuring a branching ratio of two decay...
[ { "created": "Wed, 2 May 2007 08:13:44 GMT", "version": "v1" } ]
2008-11-26
[ [ "Hamaguchi", "K.", "" ], [ "Shirai", "S.", "" ], [ "Yanagida", "T. T.", "" ] ]
Gauge mediated supersymmetry breaking scenarios with an ultra-light gravitino of mass m_{3/2}=1-10 eV are very interesting, since there is no cosmological gravitino problem. We propose a new experimental determination of the gravitino mass for such an ultra-light gravitino, by measuring a branching ratio of two decay m...
2108.05071
Chandni Menapara Ms
Chandni Menapara and Ajay Kumar Rai
Spectroscopic Study of Strangeness=-3 $\Omega^{-}$ Baryon
10 pages, 4 figures, To be published in Chinese Physics C
null
10.1088/1674-1137/ac78d1
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
$\Omega^{-}$ baryon with sss quarks has been scarcely observed in the experiments so far and has been exploited through many theoretical studies only. Here, an attempt has been made to explore properties of $\Omega$ with hypercentral Constituent Quark Model (hCQM) with a linear confining term. The resonance mass spec...
[ { "created": "Wed, 11 Aug 2021 07:23:40 GMT", "version": "v1" }, { "created": "Sat, 4 Jun 2022 06:46:11 GMT", "version": "v2" } ]
2022-10-05
[ [ "Menapara", "Chandni", "" ], [ "Rai", "Ajay Kumar", "" ] ]
$\Omega^{-}$ baryon with sss quarks has been scarcely observed in the experiments so far and has been exploited through many theoretical studies only. Here, an attempt has been made to explore properties of $\Omega$ with hypercentral Constituent Quark Model (hCQM) with a linear confining term. The resonance mass spectr...
2306.17055
Alessandro Lella
Pierluca Carenza, Giampaolo Co', Maurizio Giannotti, Alessandro Lella, Giuseppe Lucente, Alessandro Mirizzi, Thomas Rauscher
Cross section for supernova axion observation in neutrino water Cherenkov detectors
22 pages, 9 figures. Matches the version published on PRC. Changes: we employed different benchmark SN model with respect to the previous version, accounting for a 1D treatment of convection
Phys. Rev. C 109, 015501 (2024)
10.1103/PhysRevC.109.015501
null
hep-ph astro-ph.HE nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Axions coupled to nucleons might be copiously emitted from core-collapse supernovae (SNe). If the axion-nucleon coupling is strong enough, axions would be emitted from the SN as a burst and, reaching Earth, may excite the oxygen nuclei in water Cherenkov detectors (${}^{16}{\rm O} + a \to {}^{16}{\rm O}^{*}$). This p...
[ { "created": "Thu, 29 Jun 2023 16:00:29 GMT", "version": "v1" }, { "created": "Wed, 3 Jan 2024 10:02:22 GMT", "version": "v2" } ]
2024-01-04
[ [ "Carenza", "Pierluca", "" ], [ "Co'", "Giampaolo", "" ], [ "Giannotti", "Maurizio", "" ], [ "Lella", "Alessandro", "" ], [ "Lucente", "Giuseppe", "" ], [ "Mirizzi", "Alessandro", "" ], [ "Rauscher", "Thomas", ...
Axions coupled to nucleons might be copiously emitted from core-collapse supernovae (SNe). If the axion-nucleon coupling is strong enough, axions would be emitted from the SN as a burst and, reaching Earth, may excite the oxygen nuclei in water Cherenkov detectors (${}^{16}{\rm O} + a \to {}^{16}{\rm O}^{*}$). This pro...
1509.06392
Miguel G. Echevarria
Miguel G. Echevarria, Ignazio Scimemi, Alexey Vladimirov
The Transverse Momentum Dependent Fragmentation Function at NNLO
v2: published version. v3: small corrections as published in erratum. List of changes at the end of preprint
Phys. Rev. D 93, 011502 (2016)
10.1103/PhysRevD.93.011502
NIKHEF 2015-028
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the unpolarized transverse momentum dependent fragmentation function (TMDFF) at next-to-next-to-leading order (NNLO), evaluating separately TMD soft factor and TMD collinear correlator. For the first time the cancellation of spurious rapidity divergences in a properly defined individual TMD beyond the fi...
[ { "created": "Mon, 21 Sep 2015 20:30:20 GMT", "version": "v1" }, { "created": "Fri, 29 Jan 2016 08:49:17 GMT", "version": "v2" }, { "created": "Tue, 25 Oct 2016 09:55:34 GMT", "version": "v3" } ]
2016-10-26
[ [ "Echevarria", "Miguel G.", "" ], [ "Scimemi", "Ignazio", "" ], [ "Vladimirov", "Alexey", "" ] ]
We calculate the unpolarized transverse momentum dependent fragmentation function (TMDFF) at next-to-next-to-leading order (NNLO), evaluating separately TMD soft factor and TMD collinear correlator. For the first time the cancellation of spurious rapidity divergences in a properly defined individual TMD beyond the firs...
hep-ph/0205013
Seungwon Baek
Seungwon Baek
Very light sbottom and gluino scenario confronting electroweak precision tests
10 pages, 4 figures
Phys.Lett.B541:161-165,2002
10.1016/S0370-2693(02)02218-9
KIAS-P02034
hep-ph
null
The minimal supersymmetric model with light sbottom ($\sim m_b$) and light gluino (12 $\sim$ 16 GeV) can explain the excess of bottom quark production cross section at hadron colliders and has drawn much attention. We calculate one-loop contribution to Z-pole observable $R_b$ in this scenario when large CP violating ...
[ { "created": "Thu, 2 May 2002 07:27:57 GMT", "version": "v1" }, { "created": "Sun, 5 May 2002 11:08:41 GMT", "version": "v2" } ]
2008-11-26
[ [ "Baek", "Seungwon", "" ] ]
The minimal supersymmetric model with light sbottom ($\sim m_b$) and light gluino (12 $\sim$ 16 GeV) can explain the excess of bottom quark production cross section at hadron colliders and has drawn much attention. We calculate one-loop contribution to Z-pole observable $R_b$ in this scenario when large CP violating ph...
1506.04454
Vera Gluscevic
Vera Gluscevic, Moira I. Gresham, Samuel D. McDermott, Annika H. G. Peter, and Kathryn M. Zurek
Identifying the Theory of Dark Matter with Direct Detection
v2: minor corrections, 2 appendicies added; key results in Figures 8, 9, and 10; submitted to JCAP; dmdd code available at https://github.com/veragluscevic/dmdd
null
10.1088/1475-7516/2015/12/057
null
hep-ph astro-ph.CO gr-qc
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Identifying the true theory of dark matter depends crucially on accurately characterizing interactions of dark matter (DM) with other species. In the context of DM direct detection, we present a study of the prospects for correctly identifying the low-energy effective DM-nucleus scattering operators connected to UV-c...
[ { "created": "Mon, 15 Jun 2015 00:40:12 GMT", "version": "v1" }, { "created": "Thu, 19 Nov 2015 04:40:28 GMT", "version": "v2" } ]
2016-01-13
[ [ "Gluscevic", "Vera", "" ], [ "Gresham", "Moira I.", "" ], [ "McDermott", "Samuel D.", "" ], [ "Peter", "Annika H. G.", "" ], [ "Zurek", "Kathryn M.", "" ] ]
Identifying the true theory of dark matter depends crucially on accurately characterizing interactions of dark matter (DM) with other species. In the context of DM direct detection, we present a study of the prospects for correctly identifying the low-energy effective DM-nucleus scattering operators connected to UV-com...
hep-ph/0310323
Hans Pirner
Hans J. Pirner
Geometrical Scaling due to Critical Behavior Near the Light Cone
5 pages, Contribution to Light Cone Physics LC03 in Durham
Acta Phys.Polon. B35 (2004) 265-272
null
null
hep-ph
null
At low $x$ a transition from a dilute parton gas to a dense parton liquid takes place. We derive geometrical scaling for the structure function in deep inelastic scattering at low $x$ from a diverging correlation length $\xi(x)$ of Wilson lines near the light cone. QCD (SU(3)) in 2+1 space - time dimensions near the ...
[ { "created": "Wed, 29 Oct 2003 09:25:06 GMT", "version": "v1" } ]
2007-05-23
[ [ "Pirner", "Hans J.", "" ] ]
At low $x$ a transition from a dilute parton gas to a dense parton liquid takes place. We derive geometrical scaling for the structure function in deep inelastic scattering at low $x$ from a diverging correlation length $\xi(x)$ of Wilson lines near the light cone. QCD (SU(3)) in 2+1 space - time dimensions near the li...
1204.1513
John M. Campbell
John M. Campbell and R. Keith Ellis
Top-quark processes at NLO in production and decay
36 pages, 13 figures
null
null
FERMILAB-PUB-12-078-T
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We describe the implementation of top production and decay processes in the parton-level Monte Carlo program MCFM. By treating the top quark as being on-shell, we can factorize the amplitudes for top-pair production, s-channel single-top production, and t-channel single-top production into the product of an amplitude...
[ { "created": "Fri, 6 Apr 2012 16:40:27 GMT", "version": "v1" } ]
2012-04-09
[ [ "Campbell", "John M.", "" ], [ "Ellis", "R. Keith", "" ] ]
We describe the implementation of top production and decay processes in the parton-level Monte Carlo program MCFM. By treating the top quark as being on-shell, we can factorize the amplitudes for top-pair production, s-channel single-top production, and t-channel single-top production into the product of an amplitude f...
2202.09636
Tania Robens
Tania Robens
Models with (broken) Z2 symmetries
6 pages, 3 figures, 2 tables; proceedings of Discrete 2020-2021; v2: one abbreviation added, some publication information added. Corresponds to accepted proceedings version
null
null
RBI-ThPhys-2022-05, CERN-TH-2022-019
hep-ph
http://creativecommons.org/licenses/by/4.0/
I discuss the allowed parameter space as well as collider prospects of several new physics models containing (broken) Z2 symmetries. I focus on effects of current constraints on these, and touch on several future collider options.
[ { "created": "Sat, 19 Feb 2022 16:26:56 GMT", "version": "v1" }, { "created": "Wed, 5 Oct 2022 10:24:08 GMT", "version": "v2" } ]
2022-10-06
[ [ "Robens", "Tania", "" ] ]
I discuss the allowed parameter space as well as collider prospects of several new physics models containing (broken) Z2 symmetries. I focus on effects of current constraints on these, and touch on several future collider options.
1207.0474
C\'edric Delaunay
C\'edric Delaunay, Jernej F. Kamenik, Gilad Perez, Lisa Randall
Charming CP Violation and Dipole Operators from RS Flavor Anarchy
14 pages
null
10.1007/JHEP01(2013)027
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recently the LHCb collaboration reported evidence for direct CP violation in charm decays. The value is sufficiently large that either substantially enhanced Standard Model contributions or non-Standard Model physics is required to explain it. In the latter case only a limited number of possibilities would be consist...
[ { "created": "Mon, 2 Jul 2012 19:09:02 GMT", "version": "v1" } ]
2015-06-05
[ [ "Delaunay", "Cédric", "" ], [ "Kamenik", "Jernej F.", "" ], [ "Perez", "Gilad", "" ], [ "Randall", "Lisa", "" ] ]
Recently the LHCb collaboration reported evidence for direct CP violation in charm decays. The value is sufficiently large that either substantially enhanced Standard Model contributions or non-Standard Model physics is required to explain it. In the latter case only a limited number of possibilities would be consisten...
hep-ph/0210410
Apostolos Pilaftsis
Alexander M\"uck (W\"urzburg), Apostolos Pilaftsis (Manchester) and Reinhold R\"uckl (W\"urzburg)
LEP Constraints on 5-Dimensional Extensions of the Standard Model
6 pages, talk given at the 10th international conference on ``Supersymmetry and Unification of Fundamental Interactions,'' Hamburg, Germany, 17--23 June 2002
null
null
MC-TH-2002-09 and WUE-ITP-2002-029
hep-ph
null
We study minimal 5-dimensional extensions of the Standard Model, in which all or only some of the SU(2)$_L$ and U(1)$_Y$ gauge fields and Higgs bosons propagate in the fifth compact dimension. In all the 5-dimensional settings, the fermions are assumed to be localized on a 3-brane. In addition, we present the consist...
[ { "created": "Tue, 29 Oct 2002 18:08:20 GMT", "version": "v1" } ]
2007-05-23
[ [ "Mück", "Alexander", "", "Würzburg" ], [ "Pilaftsis", "Apostolos", "", "Manchester" ], [ "Rückl", "Reinhold", "", "Würzburg" ] ]
We study minimal 5-dimensional extensions of the Standard Model, in which all or only some of the SU(2)$_L$ and U(1)$_Y$ gauge fields and Higgs bosons propagate in the fifth compact dimension. In all the 5-dimensional settings, the fermions are assumed to be localized on a 3-brane. In addition, we present the consisten...
1008.2098
A. M. Fedotov
A.M. Fedotov, E.G. Gelfer, K.Yu. Korolev, S.A. Smolyansky
On the kinetic equation approach to pair production by time-dependent electric field
8 pages, 4 figures
Phys.Rev.D83:025011,2011
10.1103/PhysRevD.83.025011
null
hep-ph math-ph math.MP physics.optics physics.plasm-ph quant-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the quantum kinetic approach to pair production from vacuum by time-dependent electric field. Equivalence between this approach and the more familiar S-matrix approach is explicitly established for both scalar and fermion cases. For the particular case of a constant electric field exact solution for ki...
[ { "created": "Thu, 12 Aug 2010 11:28:44 GMT", "version": "v1" } ]
2011-02-02
[ [ "Fedotov", "A. M.", "" ], [ "Gelfer", "E. G.", "" ], [ "Korolev", "K. Yu.", "" ], [ "Smolyansky", "S. A.", "" ] ]
We investigate the quantum kinetic approach to pair production from vacuum by time-dependent electric field. Equivalence between this approach and the more familiar S-matrix approach is explicitly established for both scalar and fermion cases. For the particular case of a constant electric field exact solution for kine...
1101.5575
Igor Ivanov
I. P. Ivanov
Colliding particles carrying non-zero orbital angular momentum
v2: 24 pages, 2 figures; merged with arXiv:1101.1630 and matches the published version
Phys.Rev.D83:093001,2011
10.1103/PhysRevD.83.093001
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Photons carrying non-zero orbital angular momentum (twisted photons) are well-known in optics. Recently, it was suggested to use Compton backscattering to boost optical twisted photons to high energies. Twisted electrons in the intermediate energy range have also been produced recently. Thus, collisions involving ene...
[ { "created": "Fri, 28 Jan 2011 17:01:00 GMT", "version": "v1" }, { "created": "Tue, 3 May 2011 15:00:08 GMT", "version": "v2" } ]
2011-05-12
[ [ "Ivanov", "I. P.", "" ] ]
Photons carrying non-zero orbital angular momentum (twisted photons) are well-known in optics. Recently, it was suggested to use Compton backscattering to boost optical twisted photons to high energies. Twisted electrons in the intermediate energy range have also been produced recently. Thus, collisions involving energ...
1207.2578
Sean Fleming
Sean Fleming, Adam K. Leibovich, Thomas Mehen and Ira Z. Rothstein
The Systematics of Quarkonium Production at the LHC and Double Parton Fragmentation
27 pages, 11 figures
null
10.1103/PhysRevD.86.094012
TUM-EFT 33/12
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we discuss the systematics of quarkonium production at the LHC. In particular, we focus on the necessity to sum logs of the form log(Q/p_perp) and log(p_perp/m_Q). We show that the former contributions are power suppressed, while the latter, whose contribution in fragmentation is well known, also arise ...
[ { "created": "Wed, 11 Jul 2012 10:13:28 GMT", "version": "v1" } ]
2013-05-30
[ [ "Fleming", "Sean", "" ], [ "Leibovich", "Adam K.", "" ], [ "Mehen", "Thomas", "" ], [ "Rothstein", "Ira Z.", "" ] ]
In this paper we discuss the systematics of quarkonium production at the LHC. In particular, we focus on the necessity to sum logs of the form log(Q/p_perp) and log(p_perp/m_Q). We show that the former contributions are power suppressed, while the latter, whose contribution in fragmentation is well known, also arise in...
hep-ph/9212258
Pramoda Mohapatra
P. K. Mohapatra
How unique are the MSW parameters ?
12 pages, 4 figures in two pages
null
null
COLO-HEP-296
hep-ph
null
We investigate the effect of a possible large frozen-in magnetic field in the core of the sun and a neutrino magnetic moment of the order of $10^{-10}$ Bohr magneton on the MSW parameters. Such a possibility can completely depolarize the $\nu_{eL}$ resulting in a factor of half of the emitted number. This in combinat...
[ { "created": "Mon, 14 Dec 1992 17:11:47 GMT", "version": "v1" } ]
2007-05-23
[ [ "Mohapatra", "P. K.", "" ] ]
We investigate the effect of a possible large frozen-in magnetic field in the core of the sun and a neutrino magnetic moment of the order of $10^{-10}$ Bohr magneton on the MSW parameters. Such a possibility can completely depolarize the $\nu_{eL}$ resulting in a factor of half of the emitted number. This in combinatio...
hep-ph/9908434
Nils Tornqvist
Nils A. Tornqvist (University of Helsinki)
Flavour symmetry as a Spontaneously Broken Discrete Permutation Symmetry Embedded in Colour
6 pages in revtex
null
null
null
hep-ph nucl-th
null
A new mechanism for breaking an internal symmetry spontaneously is discussed, which is intermediate between the Nambu-Goldstone and Wigner modes of symmetry breaking. Here the quark-antiquark sea takes the role of the vacuum of the Nambu-Goldstone case. Flavour symmetry becomes a discrete permutation symmetry of the ...
[ { "created": "Mon, 23 Aug 1999 16:52:40 GMT", "version": "v1" } ]
2007-05-23
[ [ "Tornqvist", "Nils A.", "", "University of Helsinki" ] ]
A new mechanism for breaking an internal symmetry spontaneously is discussed, which is intermediate between the Nambu-Goldstone and Wigner modes of symmetry breaking. Here the quark-antiquark sea takes the role of the vacuum of the Nambu-Goldstone case. Flavour symmetry becomes a discrete permutation symmetry of the va...
hep-ph/0008056
Joe Sato
Joe Sato
Neutrino Oscillation and CP Violation
Talk given at the NUFACT'00: International Workshop on Muon Storage Ring for a Neutrino Factory, Monterey, California, 22-26 May 2000. Several typographical errors are corrected
Nucl.Instrum.Meth.A472:434-439,2001
10.1016/S0168-9002(01)01287-6
null
hep-ph
null
We reconsider the meaning of observing CP violation in neutrino oscillation.
[ { "created": "Mon, 7 Aug 2000 10:03:14 GMT", "version": "v1" }, { "created": "Wed, 20 Sep 2000 01:13:11 GMT", "version": "v2" } ]
2008-11-26
[ [ "Sato", "Joe", "" ] ]
We reconsider the meaning of observing CP violation in neutrino oscillation.
1412.6030
Quentin Wallemacq
Jean-Ren\'e Cudell, Maxim Khlopov, Quentin Wallemacq
Some potential problems of OHe composite dark matter
To appear in Proceedings of the 17th Bled Workshop "What Comes Beyond Standard Models?"
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Among composite-dark-matter scenarios, one of the simplest and most predictive is that of O-helium (OHe) dark atoms, in which a lepton-like doubly charged particle O is bound with a primordial helium nucleus, and is the main constituent of dark matter. This model liberates the physics of dark matter from many unknown...
[ { "created": "Thu, 18 Dec 2014 19:50:39 GMT", "version": "v1" } ]
2016-11-18
[ [ "Cudell", "Jean-René", "" ], [ "Khlopov", "Maxim", "" ], [ "Wallemacq", "Quentin", "" ] ]
Among composite-dark-matter scenarios, one of the simplest and most predictive is that of O-helium (OHe) dark atoms, in which a lepton-like doubly charged particle O is bound with a primordial helium nucleus, and is the main constituent of dark matter. This model liberates the physics of dark matter from many unknown f...
2102.02562
Xiao-Dong Ma
Xiao-Gang He and Xiao-Dong Ma
An EFT toolbox for baryon and lepton number violating dinucleon to dilepton decays
55 pages, 2 figures, small revisions based on referee's constructive comments, typos are corrected and new references are added, version will appear in JHEP
JHEP06(2021)047
10.1007/JHEP06(2021)047
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
In this paper we systematically consider the baryon ($B$) and lepton ($L$) number violating dinucleon to dilepton decays ($pp\to \ell^+\ell^{\prime+}, pn\to \ell^+\bar\nu^\prime, nn\to \bar\nu\bar\nu^\prime$) with $\Delta B=\Delta L=-2$ in the framework of effective field theory. We start by constructing a basis of d...
[ { "created": "Thu, 4 Feb 2021 11:52:44 GMT", "version": "v1" }, { "created": "Mon, 24 May 2021 15:37:19 GMT", "version": "v2" } ]
2021-06-10
[ [ "He", "Xiao-Gang", "" ], [ "Ma", "Xiao-Dong", "" ] ]
In this paper we systematically consider the baryon ($B$) and lepton ($L$) number violating dinucleon to dilepton decays ($pp\to \ell^+\ell^{\prime+}, pn\to \ell^+\bar\nu^\prime, nn\to \bar\nu\bar\nu^\prime$) with $\Delta B=\Delta L=-2$ in the framework of effective field theory. We start by constructing a basis of dim...
1006.0655
Buisseret Fabien Dr
F Buisseret and G Lacroix
A minimal quasiparticle approach for the QGP and its large-$N_c$ limits
19 pages, 6 figures
Eur.Phys.J.C70:1051-1060,2010
10.1140/epjc/s10052-010-1497-x
null
hep-ph hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a quasiparticle approach allowing to compute the equation of state of a generic gauge theory with gauge group SU($N_c$) and quarks in an arbitrary representation. Our formalism relies on the thermal quasiparticle masses (quarks and gluons) computed from Hard-Thermal-Loop techniques, in which the standard t...
[ { "created": "Thu, 3 Jun 2010 14:02:39 GMT", "version": "v1" }, { "created": "Mon, 13 Dec 2010 08:37:18 GMT", "version": "v2" } ]
2011-01-03
[ [ "Buisseret", "F", "" ], [ "Lacroix", "G", "" ] ]
We propose a quasiparticle approach allowing to compute the equation of state of a generic gauge theory with gauge group SU($N_c$) and quarks in an arbitrary representation. Our formalism relies on the thermal quasiparticle masses (quarks and gluons) computed from Hard-Thermal-Loop techniques, in which the standard two...
hep-ph/9909542
Alan Kostelecky
Alan Kostelecky, Charles Lane
Nonrelativistic Quantum Hamiltonian for Lorentz Violation
Accepted in J. Math. Phys., scheduled for December 1999 issue
J.Math.Phys.40:6245-6253,1999
10.1063/1.533090
IUHET 404, April 1999
hep-ph
null
A method is presented for deriving the nonrelativistic quantum hamiltonian of a free massive fermion from the relativistic lagrangian of the Lorentz-violating standard-model extension. It permits the extraction of terms at arbitrary order in a Foldy-Wouthuysen expansion in inverse powers of the mass. The quantum part...
[ { "created": "Tue, 28 Sep 1999 22:18:37 GMT", "version": "v1" } ]
2009-09-25
[ [ "Kostelecky", "Alan", "" ], [ "Lane", "Charles", "" ] ]
A method is presented for deriving the nonrelativistic quantum hamiltonian of a free massive fermion from the relativistic lagrangian of the Lorentz-violating standard-model extension. It permits the extraction of terms at arbitrary order in a Foldy-Wouthuysen expansion in inverse powers of the mass. The quantum partic...
2201.06456
Kalle Ala-Mattinen
Kalle Ala-Mattinen, Matti Heikinheimo, Kimmo Kainulainen and Kimmo Tuominen
Momentum distributions of cosmic relics: Improved analysis
14 pages, 11 figures, 1 table; Updated Binder et al. data in Fig. 1. and a better agreement is now found, updated discussion to reflect this, corrected Ref. [35], other minor clarifications added and typos corrected, published in PRD
Phys.Rev.D 105 (2022) 12, 123005
10.1103/PhysRevD.105.123005
HIP-2021-37/TH
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We solve coupled momentum-dependent Boltzmann equations for the phase space distribution of cosmic relic particles, without resorting to approximations of assuming kinetic equilibrium or neglecting backscattering or elastic interactions. Our method is amendable to precision numerical computations. To test it, we cons...
[ { "created": "Mon, 17 Jan 2022 15:11:09 GMT", "version": "v1" }, { "created": "Wed, 8 Jun 2022 10:49:46 GMT", "version": "v2" } ]
2022-06-09
[ [ "Ala-Mattinen", "Kalle", "" ], [ "Heikinheimo", "Matti", "" ], [ "Kainulainen", "Kimmo", "" ], [ "Tuominen", "Kimmo", "" ] ]
We solve coupled momentum-dependent Boltzmann equations for the phase space distribution of cosmic relic particles, without resorting to approximations of assuming kinetic equilibrium or neglecting backscattering or elastic interactions. Our method is amendable to precision numerical computations. To test it, we consid...