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hep-ph/9612420
null
T. E. O. Ericson and B. Loiseau
Systematic effects in the determination of the piNN Coupling from pbar p -> nbar n differential cross section
14 pages, LaTeX, 4 encapsulated Postscript figures (uses epsf.tex), to be published in Phys. lett. B
Phys.Lett.B393:167-174,1997
10.1016/S0370-2693(96)01601-2
TSL/ISV-96-057 and IPNO/TH 96-43
hep-ph nucl-th
null
We show that the $\pi NN$ coupling constant extracted model-independently from $\bar pp$ charge exchange is subject to a systematic correction, and, more importantly, that the strong absorption in the critical region prevents a determination of the coupling constant to high precision using this process. This attenuat...
[ { "created": "Thu, 19 Dec 1996 18:53:24 GMT", "version": "v1" }, { "created": "Fri, 20 Dec 1996 12:15:54 GMT", "version": "v2" } ]
2009-02-11
[ [ "Ericson", "T. E. O.", "" ], [ "Loiseau", "B.", "" ] ]
We show that the $\pi NN$ coupling constant extracted model-independently from $\bar pp$ charge exchange is subject to a systematic correction, and, more importantly, that the strong absorption in the critical region prevents a determination of the coupling constant to high precision using this process. This attenuates...
1012.1053
Chiu Man Ho
Chiu Man Ho
Leptogenesis and CPT Violation
5 pages, v3: version to appear in PLB with improved discussions
Phys.Lett.B702:398-401,2011
10.1016/j.physletb.2011.07.035
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We construct a model in which neutrinos and anti-neutrinos acquire the same mass but slightly different energy dispersion relations.Despite CPT violation, spin-statistics is preserved. We find that leptogenesis can be easily explained within this model, without upsetting the solar, atmospheric and reactor neutrino da...
[ { "created": "Sun, 5 Dec 2010 23:34:36 GMT", "version": "v1" }, { "created": "Mon, 27 Dec 2010 20:51:21 GMT", "version": "v2" }, { "created": "Wed, 13 Jul 2011 01:43:05 GMT", "version": "v3" } ]
2011-09-28
[ [ "Ho", "Chiu Man", "" ] ]
We construct a model in which neutrinos and anti-neutrinos acquire the same mass but slightly different energy dispersion relations.Despite CPT violation, spin-statistics is preserved. We find that leptogenesis can be easily explained within this model, without upsetting the solar, atmospheric and reactor neutrino data...
2102.08954
Peter Stoffer
Jason Aebischer, Wouter Dekens, Elizabeth E. Jenkins, Aneesh V. Manohar, Dipan Sengupta, Peter Stoffer
Effective field theory interpretation of lepton magnetic and electric dipole moments
34 pages, 7 figures; v2: numbers updated to new experimental value for g-2; version published in JHEP
JHEP 07 (2021) 107
10.1007/JHEP07(2021)107
UWThPh 2021-2
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We perform a model-independent analysis of the magnetic and electric dipole moments of the muon and electron. We give expressions for the dipole moments in terms of operator coefficients of the low-energy effective field theory (LEFT) and the Standard Model effective field theory (SMEFT). We use one-loop renormalizat...
[ { "created": "Wed, 17 Feb 2021 19:00:00 GMT", "version": "v1" }, { "created": "Thu, 11 Nov 2021 12:37:32 GMT", "version": "v2" } ]
2021-11-12
[ [ "Aebischer", "Jason", "" ], [ "Dekens", "Wouter", "" ], [ "Jenkins", "Elizabeth E.", "" ], [ "Manohar", "Aneesh V.", "" ], [ "Sengupta", "Dipan", "" ], [ "Stoffer", "Peter", "" ] ]
We perform a model-independent analysis of the magnetic and electric dipole moments of the muon and electron. We give expressions for the dipole moments in terms of operator coefficients of the low-energy effective field theory (LEFT) and the Standard Model effective field theory (SMEFT). We use one-loop renormalizatio...
1509.06577
Poberezhnyuk Roman
R. V. Poberezhnyuk, M. I. Gorenstein, M. Gazdzicki
Fluctuations in the Statistical Model of the Early Stage of nucleus-nucleus collisions
11 pages, 9 figures
null
10.5506/APhysPolB.47.2055
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Predictions on fluctuations of hadron production properties in central heavy ion collisions are presented. They are based on the Statistical Model of the Early Stage and extend previously published results by considering the strongly intensive measures of fluctuations. In several of the considered cases a significant...
[ { "created": "Tue, 22 Sep 2015 12:50:53 GMT", "version": "v1" }, { "created": "Wed, 23 Sep 2015 13:04:06 GMT", "version": "v2" } ]
2016-09-21
[ [ "Poberezhnyuk", "R. V.", "" ], [ "Gorenstein", "M. I.", "" ], [ "Gazdzicki", "M.", "" ] ]
Predictions on fluctuations of hadron production properties in central heavy ion collisions are presented. They are based on the Statistical Model of the Early Stage and extend previously published results by considering the strongly intensive measures of fluctuations. In several of the considered cases a significant c...
2203.17093
Roberta Calabrese
Roberta Calabrese, Marco Chianese, Damiano F.G. Fiorillo, Ninetta Saviano
Electron scattering of light new particles from evaporating primordial black holes
11 pages, 3 figures v2: version published in Physical Review D text typo corrects
null
10.1103/PhysRevD.105.103024
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Primordial black holes are a possible component of dark matter, and a most promising way of investigating them is through the product of their Hawking evaporation. As a result of this process, any species lighter than the Hawking temperature is emitted, including possible new particles beyond the Standard Model. Thes...
[ { "created": "Thu, 31 Mar 2022 15:09:54 GMT", "version": "v1" }, { "created": "Tue, 24 May 2022 08:19:02 GMT", "version": "v2" }, { "created": "Wed, 15 Jun 2022 12:23:28 GMT", "version": "v3" } ]
2022-06-16
[ [ "Calabrese", "Roberta", "" ], [ "Chianese", "Marco", "" ], [ "Fiorillo", "Damiano F. G.", "" ], [ "Saviano", "Ninetta", "" ] ]
Primordial black holes are a possible component of dark matter, and a most promising way of investigating them is through the product of their Hawking evaporation. As a result of this process, any species lighter than the Hawking temperature is emitted, including possible new particles beyond the Standard Model. These ...
2204.12018
Mohamed Krab
H. Abouabid, A. Arhrib, R. Benbrik, M. Krab, M. Ouchemhou
Is the new CDF $M_W$ measurement consistent with the two higgs doublet model?
11 pages, 6 figures
null
10.1016/j.nuclphysb.2023.116143
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivated by the new CDF measurement of the $W$ boson mass reported recently which clearly illustrates a large deviation compared to the Standard Model (SM) prediction. In the present paper, we study the Two-Higgs Doublet Model (2HDM) contributions to $M_W$ and its phenomenological implications in the case where the ...
[ { "created": "Tue, 26 Apr 2022 01:20:53 GMT", "version": "v1" }, { "created": "Sun, 8 May 2022 15:48:34 GMT", "version": "v2" } ]
2023-04-05
[ [ "Abouabid", "H.", "" ], [ "Arhrib", "A.", "" ], [ "Benbrik", "R.", "" ], [ "Krab", "M.", "" ], [ "Ouchemhou", "M.", "" ] ]
Motivated by the new CDF measurement of the $W$ boson mass reported recently which clearly illustrates a large deviation compared to the Standard Model (SM) prediction. In the present paper, we study the Two-Higgs Doublet Model (2HDM) contributions to $M_W$ and its phenomenological implications in the case where the he...
2204.11755
Mohammed Boukidi
Rachid Benbrik (1), Mohammed Boukidi (1), Bouzid Manaut (2) ((1) Polydisciplinary Faculty, Laboratory of Fundamental and Applied Physics, Cadi Ayyad University, Sidi Bouzid, Safi, Morocco, (2) Polydisciplinary Faculty, Laboratory of Research in Physics and Engineering Sciences, Team of Modern and Applied Physic...
Interpreting the $\boldsymbol{W}$-Mass and Muon $\boldsymbol{(g_\mu-2)}$ Anomalies within a 2-Higgs Doublet Model
12 pages, 12 figures. A new section on (g-2) has been added and the discussion has been revised
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
In this study, we investigate the anomalous magnetic moment of the muon $(g_\mu-2)$ as reported by Fermilab (FNAL), along with the recent measurement of the $W$-boson mass by the CDF-II collaboration. Both findings show significant deviations from the predictions of the Standard Model (SM), hinting at the possibility...
[ { "created": "Mon, 25 Apr 2022 16:16:18 GMT", "version": "v1" }, { "created": "Tue, 26 Apr 2022 17:56:20 GMT", "version": "v2" }, { "created": "Thu, 4 Jan 2024 15:57:25 GMT", "version": "v3" } ]
2024-01-05
[ [ "Benbrik", "Rachid", "" ], [ "Boukidi", "Mohammed", "" ], [ "Manaut", "Bouzid", "" ] ]
In this study, we investigate the anomalous magnetic moment of the muon $(g_\mu-2)$ as reported by Fermilab (FNAL), along with the recent measurement of the $W$-boson mass by the CDF-II collaboration. Both findings show significant deviations from the predictions of the Standard Model (SM), hinting at the possibility o...
1002.3048
Boris Blok
B. Blok, L. Frankfurt, M. Strikman
DGLAP versus perturbative Pomeron in large momentum transfer hard diffractive processes at HERA and LHC
12 pages, 3 figures
Phys.Lett.B690:159-163,2010
10.1016/j.physletb.2010.05.015
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We evaluate within the LO DGLAP approximation the dependence on energy of the cross section of the photo(electro)production of vector meson V ($V=J/\psi,...$) in the hard elastic processes off a parton $\gamma^*+g\to V=J/\psi+g$ as the function of momentum transfer $t=(q_{\gamma}-p_V)^2$. We demonstrate that in the l...
[ { "created": "Tue, 16 Feb 2010 10:48:15 GMT", "version": "v1" } ]
2014-11-20
[ [ "Blok", "B.", "" ], [ "Frankfurt", "L.", "" ], [ "Strikman", "M.", "" ] ]
We evaluate within the LO DGLAP approximation the dependence on energy of the cross section of the photo(electro)production of vector meson V ($V=J/\psi,...$) in the hard elastic processes off a parton $\gamma^*+g\to V=J/\psi+g$ as the function of momentum transfer $t=(q_{\gamma}-p_V)^2$. We demonstrate that in the lim...
0912.0029
Piotr Kotko
Piotr Kotko and Michal Praszalowicz
Photon Distribution Amplitudes in nonlocal chiral quark model
38 pages, 9 figures. Refs. added
Phys.Rev.D81:034019,2010
10.1103/PhysRevD.81.034019
TPJU-3/2009
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Photon distribution amplitudes up to twist four are calculated within the nonlocal chiral quark model with a simple pole ansatz for momentum dependence of the constituent quark mass. Calculations are performed using modified electromagnetic vector current in order to satisfy Ward identities. Quark condensate and magn...
[ { "created": "Mon, 30 Nov 2009 21:46:24 GMT", "version": "v1" }, { "created": "Tue, 8 Dec 2009 00:23:25 GMT", "version": "v2" } ]
2010-06-23
[ [ "Kotko", "Piotr", "" ], [ "Praszalowicz", "Michal", "" ] ]
Photon distribution amplitudes up to twist four are calculated within the nonlocal chiral quark model with a simple pole ansatz for momentum dependence of the constituent quark mass. Calculations are performed using modified electromagnetic vector current in order to satisfy Ward identities. Quark condensate and magnet...
1610.09814
Danning Li
Danning Li and Mei Huang
Chiral phase transition of QCD with $N_f=2+1$ flavors from holography
Regular article, 18 pages
null
10.1007/JHEP02(2017)042
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Chiral phase transition for three-flavor $N_f=2+1$ QCD with $m_u=m_d\neq m_s$ is investigated in a modified soft-wall holographic QCD model. Solving temperature dependent chiral condensates from equations of motion of the modified soft-wall model, we extract the quark mass dependence of the order of chiral phase tran...
[ { "created": "Mon, 31 Oct 2016 07:54:30 GMT", "version": "v1" } ]
2017-03-08
[ [ "Li", "Danning", "" ], [ "Huang", "Mei", "" ] ]
Chiral phase transition for three-flavor $N_f=2+1$ QCD with $m_u=m_d\neq m_s$ is investigated in a modified soft-wall holographic QCD model. Solving temperature dependent chiral condensates from equations of motion of the modified soft-wall model, we extract the quark mass dependence of the order of chiral phase transi...
1406.5662
Mani Tripathi
Andrew Askew, Sushil Chauhan, Bjorn Penning, William Shepherd and Mani Tripathi
Searching for Dark Matter at Hadron Colliders
null
International Journal of Modern Physics A, Vol. 29 (2014) 1430041
10.1142/S0217751X14300415
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Theoretical and experimental techniques employed in dedicated searches for dark matter at hadron colliders are reviewed. Bounds from the 7 and 8 TeV proton-proton collisions at the LHC on dark matter interactions have been collected and the results interpreted. We review the current status of the Effective Field Theo...
[ { "created": "Sun, 22 Jun 2014 02:12:21 GMT", "version": "v1" } ]
2014-06-24
[ [ "Askew", "Andrew", "" ], [ "Chauhan", "Sushil", "" ], [ "Penning", "Bjorn", "" ], [ "Shepherd", "William", "" ], [ "Tripathi", "Mani", "" ] ]
Theoretical and experimental techniques employed in dedicated searches for dark matter at hadron colliders are reviewed. Bounds from the 7 and 8 TeV proton-proton collisions at the LHC on dark matter interactions have been collected and the results interpreted. We review the current status of the Effective Field Theory...
hep-ph/9706543
Andrew Kirk
Frank E. Close and Andrew Kirk
Implications of the Glueball-qqbar filter on the 1++ nonet
21 pages, Latex, 5 Figures
Z.Phys.C76:469-474,1997
10.1007/s002880050569
RAL-97-029, BHAM-HEP/97-03
hep-ph
null
The application of our glueball-qqbar filter to the centrally produced KKbarpi system shows that the f1(1285) and f1(1420) have the same behaviour; namely consistent with the f1(1420) being the partner to the f1(1285) in the 3P1 nonet of axial mesons. We determine a flavour singlet-octet mixing angle of approximately...
[ { "created": "Mon, 30 Jun 1997 10:24:38 GMT", "version": "v1" } ]
2008-11-26
[ [ "Close", "Frank E.", "" ], [ "Kirk", "Andrew", "" ] ]
The application of our glueball-qqbar filter to the centrally produced KKbarpi system shows that the f1(1285) and f1(1420) have the same behaviour; namely consistent with the f1(1420) being the partner to the f1(1285) in the 3P1 nonet of axial mesons. We determine a flavour singlet-octet mixing angle of approximately 5...
0812.2457
Kim Maltman
Kim Maltman and Tzahi Yavin
Alpha_s from hadronic tau decay data
6 pages, 1 figure. Talk given at the 10th International Workshop on Tau Lepton Physics, Novosibirsk, Russia, Sep. 22-25, 2008
null
10.1016/j.nuclphysbps.2009.03.013
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the extraction of alpha_s using isovector hadronic tau decay data and sum rules constructed specifically to suppress contributions associated with poorly known higher dimension condensates. We show, first, that problems with the treatment of such contributions affect earlier related analyses and, second, t...
[ { "created": "Fri, 12 Dec 2008 20:49:59 GMT", "version": "v1" } ]
2015-05-13
[ [ "Maltman", "Kim", "" ], [ "Yavin", "Tzahi", "" ] ]
We discuss the extraction of alpha_s using isovector hadronic tau decay data and sum rules constructed specifically to suppress contributions associated with poorly known higher dimension condensates. We show, first, that problems with the treatment of such contributions affect earlier related analyses and, second, tha...
2209.08914
Jorge J. Mart\'inez de Lejarza
Jorge J. Mart\'inez de Lejarza, Leandro Cieri, Germ\'an Rodrigo
Quantum jet clustering with LHC simulated data
6 pages, 1 figure, 1 table, Contribution to 41st International Conference on High Energy physics - ICHEP 2022, 6-13 July 2022, Bologna, Italy
PoS ICHEP2022 (2022) 241
10.22323/1.414.0241
IFIC/22-26
hep-ph quant-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the case where quantum computing could improve jet clustering by considering two new quantum algorithms that might speed up classical jet clustering algorithms. The first one is a quantum subroutine to compute a Minkowski-based distance between two data points, while the second one consists of a quantum circ...
[ { "created": "Mon, 19 Sep 2022 10:51:13 GMT", "version": "v1" } ]
2022-11-23
[ [ "de Lejarza", "Jorge J. Martínez", "" ], [ "Cieri", "Leandro", "" ], [ "Rodrigo", "Germán", "" ] ]
We study the case where quantum computing could improve jet clustering by considering two new quantum algorithms that might speed up classical jet clustering algorithms. The first one is a quantum subroutine to compute a Minkowski-based distance between two data points, while the second one consists of a quantum circui...
2204.08067
Wan-Zhe Feng
Kai-Yu Zhang, Wan-Zhe Feng
Explaining the $W$ boson mass anomaly and dark matter with a $U(1)$ dark sector
20 pages, 5 figures
Chin. Phys. C 47, no.2, 023107 (2023)
10.1088/1674-1137/aca585
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The $W$ boson mass recently reported by the CDF collaboration shows a deviation from the standard model prediction with an excess at $7\sigma$ level. We investigate two simple extensions of the standard model with an extra $U(1)$ dark sector. One is the $U(1)_x$ extension, where the $U(1)_x$ gauge field mixes with th...
[ { "created": "Sun, 17 Apr 2022 19:00:02 GMT", "version": "v1" }, { "created": "Tue, 26 Apr 2022 17:40:01 GMT", "version": "v2" }, { "created": "Wed, 11 Jan 2023 07:30:00 GMT", "version": "v3" } ]
2023-01-12
[ [ "Zhang", "Kai-Yu", "" ], [ "Feng", "Wan-Zhe", "" ] ]
The $W$ boson mass recently reported by the CDF collaboration shows a deviation from the standard model prediction with an excess at $7\sigma$ level. We investigate two simple extensions of the standard model with an extra $U(1)$ dark sector. One is the $U(1)_x$ extension, where the $U(1)_x$ gauge field mixes with the ...
2103.02159
Patrick Barry
N. Y. Cao, P. C. Barry, N. Sato, W. Melnitchouk
Towards the three-dimensional parton structure of the pion: Integrating transverse momentum data into global QCD analysis
40 pages, 16 figures
Phys. Rev. D 103, 114014 (2021)
10.1103/PhysRevD.103.114014
JLAB-THY-21-3328
hep-ph hep-ex hep-lat nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We perform a new Monte Carlo QCD analysis of pion parton distribution functions, including, for the first time, transverse momentum dependent pion-nucleus Drell-Yan cross sections together with $p_{\rm T}$-integrated Drell-Yan and leading neutron electroproduction data from HERA. We assess the sensitivity of the Mont...
[ { "created": "Wed, 3 Mar 2021 03:51:26 GMT", "version": "v1" }, { "created": "Tue, 30 Nov 2021 06:15:36 GMT", "version": "v2" } ]
2021-12-01
[ [ "Cao", "N. Y.", "" ], [ "Barry", "P. C.", "" ], [ "Sato", "N.", "" ], [ "Melnitchouk", "W.", "" ] ]
We perform a new Monte Carlo QCD analysis of pion parton distribution functions, including, for the first time, transverse momentum dependent pion-nucleus Drell-Yan cross sections together with $p_{\rm T}$-integrated Drell-Yan and leading neutron electroproduction data from HERA. We assess the sensitivity of the Monte ...
1805.12444
Ricardo Vazquez
X. Feal, C. Pajares, and R.A. Vazquez
Thermal behavior and entanglement in Pb-Pb and p-p collisions
16 pages, 8 figures
Phys. Rev. C 99, 015205 (2019)
10.1103/PhysRevC.99.015205
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The thermalization of the particles produced in collisions of small size objects can be achieved by quantum entanglement of the partons of the initial state as it was analyzed recently in proton-proton collisions. We extend such study to Pb-Pb collisions and to different multiplicities of proton-proton collisions. We...
[ { "created": "Thu, 31 May 2018 12:50:15 GMT", "version": "v1" } ]
2019-01-30
[ [ "Feal", "X.", "" ], [ "Pajares", "C.", "" ], [ "Vazquez", "R. A.", "" ] ]
The thermalization of the particles produced in collisions of small size objects can be achieved by quantum entanglement of the partons of the initial state as it was analyzed recently in proton-proton collisions. We extend such study to Pb-Pb collisions and to different multiplicities of proton-proton collisions. We o...
0707.0618
Howard Baer
Howard Baer, Andrew Box, Eun-Kyung Park and Xerxes Tata
Implications of Compressed Supersymmetry for Collider and Dark Matter Searches
22 pages including 24 eps figures
JHEP 0708:060,2007
10.1088/1126-6708/2007/08/060
FSU-HEP-070704, UH-511-1108-07
hep-ph
null
Martin has proposed a scenario dubbed ``compressed supersymmetry'' (SUSY) where the MSSM is the effective field theory between energy scales M_{\rm weak} and M_{\rm GUT}, but with the GUT scale SU(3) gaugino mass M_3<< M_1 or M_2. As a result, squark and gluino masses are suppressed relative to slepton, chargino and ...
[ { "created": "Wed, 4 Jul 2007 14:07:18 GMT", "version": "v1" } ]
2014-11-18
[ [ "Baer", "Howard", "" ], [ "Box", "Andrew", "" ], [ "Park", "Eun-Kyung", "" ], [ "Tata", "Xerxes", "" ] ]
Martin has proposed a scenario dubbed ``compressed supersymmetry'' (SUSY) where the MSSM is the effective field theory between energy scales M_{\rm weak} and M_{\rm GUT}, but with the GUT scale SU(3) gaugino mass M_3<< M_1 or M_2. As a result, squark and gluino masses are suppressed relative to slepton, chargino and ne...
1912.08797
Wen Yin
Takehiko Asaka, Hiroyuki Ishida, and Wen Yin
Direct baryogenesis in the broken phase
20pages, 4 figures, published version
null
10.1007/JHEP07(2020)174
KEK-TH-2179
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We show a new mechanism for baryogenesis where the reheating temperature can be smaller than the electroweak scale. The baryon number symmetry is violated by a dimension nine operator which conserves a baryon parity. A high energy quark from the decay of a heavy particle, $e.g.$ inflaton, modulus or gravitino, underg...
[ { "created": "Wed, 18 Dec 2019 18:51:26 GMT", "version": "v1" }, { "created": "Mon, 17 May 2021 13:09:59 GMT", "version": "v2" } ]
2021-05-18
[ [ "Asaka", "Takehiko", "" ], [ "Ishida", "Hiroyuki", "" ], [ "Yin", "Wen", "" ] ]
We show a new mechanism for baryogenesis where the reheating temperature can be smaller than the electroweak scale. The baryon number symmetry is violated by a dimension nine operator which conserves a baryon parity. A high energy quark from the decay of a heavy particle, $e.g.$ inflaton, modulus or gravitino, undergoe...
hep-ph/0510133
Mustafa Savci
T. M. Aliev, M. Savci
P-odd asymmetries in polarized (Lambda_b -> Lambda l^+ l^-) decay
25 pages, 11 figures, LaTeX formatted
null
null
metu-phys-hep-05-25
hep-ph
null
We calculate various P-odd asymmetries appearing in the differential decay width for the cascade decay (Lambda_b -> Lambda(-> a+b) V^* (-> l^+ l^-)) with polarized and unpolarized heavy baryons including new vector type interactions and using the helicity amplitudes. It is obtained that the study of P-odd asymmetries...
[ { "created": "Tue, 11 Oct 2005 16:08:41 GMT", "version": "v1" } ]
2007-05-23
[ [ "Aliev", "T. M.", "" ], [ "Savci", "M.", "" ] ]
We calculate various P-odd asymmetries appearing in the differential decay width for the cascade decay (Lambda_b -> Lambda(-> a+b) V^* (-> l^+ l^-)) with polarized and unpolarized heavy baryons including new vector type interactions and using the helicity amplitudes. It is obtained that the study of P-odd asymmetries c...
0907.2533
Zhun Lu
Sergey Kovalenko, Zhun Lu, Ivan Schmidt
Lepton Number Violating Processes Mediated by Majorana Neutrinos at Hadron Colliders
18 pages,6 figures
Phys.Rev.D80:073014,2009
10.1103/PhysRevD.80.073014
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the Lepton number violating like-sign dilepton processes $h_1 h_2 \to l^\pm l^{\prime \pm} jj X$ and $h_1 h_2 \to l^\pm l^{\prime \pm} W^\pm X$, mediated by heavy GeV scale Majorana neutrinos. We focus on the resonantly enhanced contributions with a nearly on-mass-shell Majorana neutrino in the s-channel. We...
[ { "created": "Wed, 15 Jul 2009 09:42:31 GMT", "version": "v1" } ]
2009-11-05
[ [ "Kovalenko", "Sergey", "" ], [ "Lu", "Zhun", "" ], [ "Schmidt", "Ivan", "" ] ]
We study the Lepton number violating like-sign dilepton processes $h_1 h_2 \to l^\pm l^{\prime \pm} jj X$ and $h_1 h_2 \to l^\pm l^{\prime \pm} W^\pm X$, mediated by heavy GeV scale Majorana neutrinos. We focus on the resonantly enhanced contributions with a nearly on-mass-shell Majorana neutrino in the s-channel. We s...
hep-ph/0309083
Hai-cang Ren
Kurt Haller and Hai-cang Ren
The Coulomb interaction and the inverse Faddeev-Popov operator in QCD
null
Mod.Phys.Lett. A18 (2003) 2749-2754
10.1142/S0217732303012416
null
hep-ph
null
We give a proof of a local relation between the inverse Faddeev-Popov operator and the non-Abelian Coulomb interaction between color charges.
[ { "created": "Mon, 8 Sep 2003 21:14:30 GMT", "version": "v1" }, { "created": "Mon, 22 Sep 2003 17:51:55 GMT", "version": "v2" } ]
2009-11-10
[ [ "Haller", "Kurt", "" ], [ "Ren", "Hai-cang", "" ] ]
We give a proof of a local relation between the inverse Faddeev-Popov operator and the non-Abelian Coulomb interaction between color charges.
2205.13291
Manibrata Sen
Manibrata Sen
Constraining pseudo-Dirac neutrinos from a galactic core-collapse supernova
Contribution to the 2022 Electroweak session of the 56th Rencontres de Moriond
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Neutrinos can be pseudo-Dirac in nature -- Majorana fermions behaving as Dirac fermions for all practical purposes. In such a scenario, active and sterile neutrinos are quasi-degenerate in mass, and hence oscillations between the two, due to their tiny mass-squared difference $(\delta m^2)$, can develop only over ver...
[ { "created": "Thu, 26 May 2022 12:09:25 GMT", "version": "v1" }, { "created": "Wed, 16 Aug 2023 14:35:08 GMT", "version": "v2" } ]
2023-08-17
[ [ "Sen", "Manibrata", "" ] ]
Neutrinos can be pseudo-Dirac in nature -- Majorana fermions behaving as Dirac fermions for all practical purposes. In such a scenario, active and sterile neutrinos are quasi-degenerate in mass, and hence oscillations between the two, due to their tiny mass-squared difference $(\delta m^2)$, can develop only over very ...
1209.5538
Giampiero Passarino
Giampiero Passarino
NLO Inspired Effective Lagrangians for Higgs Physics
42 pages
null
10.1016/j.nuclphysb.2012.11.018
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Either late autumn this year or latest early next year LHC should have results with 2-3 times the current data which migth give first clues on the couplings of the light narrow resonance. A strategy for measuring deviations from the Standard Model can be based on using the "full" Standard Model, including all availab...
[ { "created": "Tue, 25 Sep 2012 08:43:12 GMT", "version": "v1" } ]
2015-06-11
[ [ "Passarino", "Giampiero", "" ] ]
Either late autumn this year or latest early next year LHC should have results with 2-3 times the current data which migth give first clues on the couplings of the light narrow resonance. A strategy for measuring deviations from the Standard Model can be based on using the "full" Standard Model, including all available...
hep-ph/9811416
null
Jia-Sheng Xu and Hong-An Peng (Peking Unv.)
Associated jpsi + gamma production through double Pomeron exchange: The nature of the Pomeron and hard diffractive factorization breaking
RevTex, 9 Pages, 2 PS figures
Commun.Theor.Phys. 34 (2000) 129-134
null
PKU-TP-98-28
hep-ph
null
We present a study of associated jpsi + gamma production through double Pomeron exchange at energies reached at the Fermilab Tevatron and CERN LHC based on the Ingelman-Schlein model for hard diffractive scattering and the factorization formalism of nonrelativistic QCD for quarkonia production. We find that this proc...
[ { "created": "Fri, 20 Nov 1998 09:50:42 GMT", "version": "v1" } ]
2007-05-23
[ [ "Xu", "Jia-Sheng", "", "Peking Unv." ], [ "Peng", "Hong-An", "", "Peking Unv." ] ]
We present a study of associated jpsi + gamma production through double Pomeron exchange at energies reached at the Fermilab Tevatron and CERN LHC based on the Ingelman-Schlein model for hard diffractive scattering and the factorization formalism of nonrelativistic QCD for quarkonia production. We find that this proces...
0810.5101
Jens Salomon
A. Bauer, L. Mihaila, J. Salomon
Matching coefficients for alpha_s and m_b to O(alpha_s^2) in the MSSM
25 pages, 5 figures
JHEP 0902:037,2009
10.1088/1126-6708/2009/02/037
SFB/CPP-08-75, TTP/08-25
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We compute the exact two-loop matching coefficients for the strong coupling constant alpha_s and the bottom-quark mass m_b within the Minimal Supersymmetric Standard Model (MSSM), taking into account O(alpha_s^2) contributions from Supersymmetric Quantum Chromodynamics (SQCD). We find that the explicit mass pattern...
[ { "created": "Tue, 28 Oct 2008 19:33:46 GMT", "version": "v1" }, { "created": "Mon, 9 Feb 2009 14:35:57 GMT", "version": "v2" } ]
2010-04-15
[ [ "Bauer", "A.", "" ], [ "Mihaila", "L.", "" ], [ "Salomon", "J.", "" ] ]
We compute the exact two-loop matching coefficients for the strong coupling constant alpha_s and the bottom-quark mass m_b within the Minimal Supersymmetric Standard Model (MSSM), taking into account O(alpha_s^2) contributions from Supersymmetric Quantum Chromodynamics (SQCD). We find that the explicit mass pattern of ...
2108.00253
Ngo Phuc Duc Loc
Ngo Phuc Duc Loc
Sphaleron bound in some nonstandard cosmology scenarios
16 pages, 6 figures, 1 table
Int. J. Mod. Phys. A 37, 2250153 (2022)
10.1142/S0217751X22501536
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
In the first scenario, we revise the upper bound of the cutoff scale of the dimension-six potential Higgs operator required for a successful electroweak baryogenesis in the case of a modified expansion history caused by the existence of a non-interacting scalar field at the time phase transition happens. The upper bo...
[ { "created": "Sat, 31 Jul 2021 14:41:40 GMT", "version": "v1" }, { "created": "Mon, 9 Aug 2021 22:39:00 GMT", "version": "v2" }, { "created": "Fri, 11 Nov 2022 06:48:50 GMT", "version": "v3" } ]
2022-11-14
[ [ "Loc", "Ngo Phuc Duc", "" ] ]
In the first scenario, we revise the upper bound of the cutoff scale of the dimension-six potential Higgs operator required for a successful electroweak baryogenesis in the case of a modified expansion history caused by the existence of a non-interacting scalar field at the time phase transition happens. The upper boun...
hep-ph/0309157
Hans Volker Klapdor-Kleingrothaus
H.V. Klapdor-Kleingrothaus (Spokesman of HEIDELBERG-MOSCOW and GENIUS Collaborations), O. Chkvorez, I.V. Krivosheina and C. Tomei, (Max-Planck-Institut fuer Kernphysik, Germany)
Measurement of the 214Bi spectrum in the energy region around the Q-value of 76Ge neutrinoless double-beta decay
10 pages, latex2e, 5 figures, see also Home Page of HEIDELBERG Non-Accelerator Particle Physics Group: http://www.mpi-hd.mpg.de/non_acc/
Nucl.Instrum.Meth. A511 (2003) 335-340
10.1016/S0168-9002(03)01927-2
null
hep-ph
null
In this work we present the results obtained measuring the 214Bi spectrum from a 226Ra source with a high purity germanium detector. Our attention was mostly focused on the energy region around the Q-value of 76Ge neutrinoless double-beta decay (2039.006 keV). The results of this measurement are strongly related to t...
[ { "created": "Sun, 14 Sep 2003 19:27:48 GMT", "version": "v1" } ]
2009-11-10
[ [ "Klapdor-Kleingrothaus", "H. V.", "", "Spokesman of HEIDELBERG-MOSCOW and GENIUS\n Collaborations" ], [ "Chkvorez", "O.", "" ], [ "Krivosheina", "I. V.", "" ], [ "Tomei", "C.", "" ] ]
In this work we present the results obtained measuring the 214Bi spectrum from a 226Ra source with a high purity germanium detector. Our attention was mostly focused on the energy region around the Q-value of 76Ge neutrinoless double-beta decay (2039.006 keV). The results of this measurement are strongly related to the...
1712.02263
Ruben Sandapen
Mohammad Ahmady, Farrukh Chishtie and Ruben Sandapen
QCD-constrained dynamical spin effects in the pion holographic light-front wavefunction
5 pages, Proceedings Contribution to the international conference, Light-cone 2017, held at the University of Mumbai, India. September 18-22, 2017
null
10.1007/s00601-018-1337-3
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Using light-front holography, we predict simultaneously the pion decay constant and the pion charge radius by taking into account (higher twist) dynamical spin effects whose relative importance is constrained by QCD.
[ { "created": "Wed, 6 Dec 2017 16:25:01 GMT", "version": "v1" } ]
2018-04-04
[ [ "Ahmady", "Mohammad", "" ], [ "Chishtie", "Farrukh", "" ], [ "Sandapen", "Ruben", "" ] ]
Using light-front holography, we predict simultaneously the pion decay constant and the pion charge radius by taking into account (higher twist) dynamical spin effects whose relative importance is constrained by QCD.
1107.4252
Chuwen Xiao
Chu-Wen Xiao, Melahat Bayar and Eulogio Oset
Baryon bound states of three hadrons with charm and hidden charm
Proceeding of Hadron2011 in Munich
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this talk, we show our recent theoretical results for three-body systems in the charm sector which are made of three hadrons and contain one nucleon, one $D$ meson and in addition another meson, $\bar{D}$, $K$ or $\bar{K}$.
[ { "created": "Thu, 21 Jul 2011 12:34:53 GMT", "version": "v1" } ]
2011-07-22
[ [ "Xiao", "Chu-Wen", "" ], [ "Bayar", "Melahat", "" ], [ "Oset", "Eulogio", "" ] ]
In this talk, we show our recent theoretical results for three-body systems in the charm sector which are made of three hadrons and contain one nucleon, one $D$ meson and in addition another meson, $\bar{D}$, $K$ or $\bar{K}$.
hep-ph/0411348
V. A. Yerokhin
V. A. Yerokhin, P. Indelicato, and V. M. Shabaev
Two-loop self-energy contribution to the Lamb shift in H-like ions
null
Phys.Rev. A71 (2005) 040101
10.1103/PhysRevA.71.040101
null
hep-ph
null
The two-loop self-energy correction is evaluated to all orders in Z\alpha for the ground-state Lamb shift of H-like ions with Z >= 10, where Z is the nuclear charge number and \alpha is the fine structure constant. The results obtained are compared with the analytical values for the Z\alpha-expansion coefficients. An...
[ { "created": "Fri, 26 Nov 2004 17:07:03 GMT", "version": "v1" } ]
2009-11-10
[ [ "Yerokhin", "V. A.", "" ], [ "Indelicato", "P.", "" ], [ "Shabaev", "V. M.", "" ] ]
The two-loop self-energy correction is evaluated to all orders in Z\alpha for the ground-state Lamb shift of H-like ions with Z >= 10, where Z is the nuclear charge number and \alpha is the fine structure constant. The results obtained are compared with the analytical values for the Z\alpha-expansion coefficients. An e...
hep-ph/0511128
Bryan Webber
Bryan Webber
Black Holes at Accelerators
14 pages, 15 figures. Invited talk at SLAC Summer Institute 2005 (SSI05-T030). Version 3: minor changes to text and some references added
null
null
Cavendish-HEP-05/20
hep-ph
null
In theories with large extra dimensions and TeV-scale gravity, black holes are copiously produced in particle collisions at energies well above the Planck scale. I briefly review some recent work on the phenomenology of this process, with emphasis on theoretical uncertainties and possible strategies for measuring the...
[ { "created": "Thu, 10 Nov 2005 15:46:57 GMT", "version": "v1" }, { "created": "Tue, 29 Nov 2005 14:28:57 GMT", "version": "v2" }, { "created": "Thu, 6 Apr 2006 16:04:38 GMT", "version": "v3" } ]
2007-05-23
[ [ "Webber", "Bryan", "" ] ]
In theories with large extra dimensions and TeV-scale gravity, black holes are copiously produced in particle collisions at energies well above the Planck scale. I briefly review some recent work on the phenomenology of this process, with emphasis on theoretical uncertainties and possible strategies for measuring the n...
1307.7924
Zong-Gang Mou
Zong-Gang Mou, Paul M. Saffin, Anders Tranberg
Ensemble fermions for electroweak dynamics and the fermion preheating temperature
19 pages, 10 figures
null
10.1007/JHEP11(2013)097
null
hep-ph hep-lat hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We refine the implementation of ensemble fermions for the electroweak sector of the Standard Model, introduced previously. We consider the behavior of different observables as the size of the ensemble is increased and show that the dynamics converges for ensemble sizes small enough that simulations of the entire elec...
[ { "created": "Tue, 30 Jul 2013 11:44:16 GMT", "version": "v1" }, { "created": "Tue, 24 Sep 2013 10:40:13 GMT", "version": "v2" } ]
2015-06-16
[ [ "Mou", "Zong-Gang", "" ], [ "Saffin", "Paul M.", "" ], [ "Tranberg", "Anders", "" ] ]
We refine the implementation of ensemble fermions for the electroweak sector of the Standard Model, introduced previously. We consider the behavior of different observables as the size of the ensemble is increased and show that the dynamics converges for ensemble sizes small enough that simulations of the entire electr...
hep-ph/0203035
Chris Allton
Chris Allton
Lattice QCD with Dynamical Quarks from the UKQCD Collaboration
Invited paper presented at the International Light-Cone Workshop "Light-cone Physics: Particles and Strings", September 2001, Trento, Italy. 7 pages
Nucl.Phys.Proc.Suppl. 108 (2002) 133-139
10.1016/S0920-5632(02)01316-6
SWAT/331
hep-ph hep-lat
null
A brief overview of the lattice technique of studying QCD is presented. Recent results from the UKQCD Collaboration's simulations with dynamical quarks are then presented. In this work, the calculations are all at a fixed lattice spacing and volume, but varying sea quark mass from infinite (corresponding to the quenc...
[ { "created": "Tue, 5 Mar 2002 01:49:18 GMT", "version": "v1" } ]
2009-11-07
[ [ "Allton", "Chris", "" ] ]
A brief overview of the lattice technique of studying QCD is presented. Recent results from the UKQCD Collaboration's simulations with dynamical quarks are then presented. In this work, the calculations are all at a fixed lattice spacing and volume, but varying sea quark mass from infinite (corresponding to the quenche...
1103.3649
Peter Zeiler Skands
Holger Schulz and Peter Skands
Energy Scaling of Minimum-Bias Tunes
17 pages, 3 figures, 4 tables
null
10.1140/epjc/s10052-011-1644-z
MCNET-11-07, CERN-TH-2011-036, HU-EP-11/13
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose that the flexibility offered by modern event-generator tuning tools allows for more than just obtaining "best fits" to a collection of data. In particular, we argue that the universality of the underlying physics model can be tested by performing several, mutually independent, optimizations of the generato...
[ { "created": "Fri, 18 Mar 2011 15:14:01 GMT", "version": "v1" } ]
2015-05-27
[ [ "Schulz", "Holger", "" ], [ "Skands", "Peter", "" ] ]
We propose that the flexibility offered by modern event-generator tuning tools allows for more than just obtaining "best fits" to a collection of data. In particular, we argue that the universality of the underlying physics model can be tested by performing several, mutually independent, optimizations of the generator ...
1512.07233
Marc Schlegel
Koichi Kanazawa, Yuji Koike, Andreas Metz, Daniel Pitonyak, Marc Schlegel
Operator Constraints for Twist-3 Functions and Lorentz Invariance Properties of Twist-3 Observables
17 pages, 6 figures, minor changes, final version, published in PRD
Phys. Rev. D 93, 054024 (2016)
10.1103/PhysRevD.93.054024
RBRC-1164
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the behavior under Lorentz tranformations of perturbative coefficient functions in a collinear twist-3 formalism relevant for high-energy observables including transverse polarization of hadrons. We argue that those perturbative coefficient functions can, {\it a priori}, acquire quite different yet Lor...
[ { "created": "Tue, 22 Dec 2015 20:32:48 GMT", "version": "v1" }, { "created": "Wed, 16 Mar 2016 11:02:38 GMT", "version": "v2" } ]
2016-03-23
[ [ "Kanazawa", "Koichi", "" ], [ "Koike", "Yuji", "" ], [ "Metz", "Andreas", "" ], [ "Pitonyak", "Daniel", "" ], [ "Schlegel", "Marc", "" ] ]
We investigate the behavior under Lorentz tranformations of perturbative coefficient functions in a collinear twist-3 formalism relevant for high-energy observables including transverse polarization of hadrons. We argue that those perturbative coefficient functions can, {\it a priori}, acquire quite different yet Loren...
hep-ph/9909359
Robert Peschanski
R.Peschanski (SPhT,Saclay)
On the QCD dipole content of hard photon and gluon probes
Invited talk at the QCD Euroconference 99,Montpellier July 7-13, 1999; 5pages, 1 eps figure
Nucl.Phys.Proc.Suppl.86:170-174,2000
10.1016/S0920-5632(00)00559-4
t99/098
hep-ph
null
A gluon forward jet playing the role of a deep probe in high energy scattering, we analyze its infinite momentum QCD wave function in terms of dipole (color-singlet quark-antiquark) configurations using k_T-factorization properties. The comparison is made with virtual photon quark-antiquark configurations. Some impli...
[ { "created": "Tue, 14 Sep 1999 09:40:52 GMT", "version": "v1" } ]
2008-11-26
[ [ "Peschanski", "R.", "", "SPhT,Saclay" ] ]
A gluon forward jet playing the role of a deep probe in high energy scattering, we analyze its infinite momentum QCD wave function in terms of dipole (color-singlet quark-antiquark) configurations using k_T-factorization properties. The comparison is made with virtual photon quark-antiquark configurations. Some implica...
hep-ph/9709281
Arnd Brandenburg
W. Bernreuther, A. Brandenburg, and P. Uwer (RWTH Aachen)
Next-to-Leading Order QCD corrections to Three-Jet Rates with Massive Quarks
4 pages, LaTeX, 2 postscript figures, uses espcrc2.sty. Talk given by W. Bernreuther at the workshop on Standard Model Physics, San Miniato, April 1997
Nucl.Phys.Proc.Suppl.65:39-42,1998
10.1016/S0920-5632(97)00973-0
PITHA 97/35
hep-ph
null
The reaction $e^+e^-$ annihilation into three jets was recently computed for massive quarks at next-to-leading order in perturbative QCD. We discuss some results of our calculation for b jets produced at the Z resonance.
[ { "created": "Mon, 8 Sep 1997 13:29:54 GMT", "version": "v1" } ]
2011-01-25
[ [ "Bernreuther", "W.", "", "RWTH Aachen" ], [ "Brandenburg", "A.", "", "RWTH Aachen" ], [ "Uwer", "P.", "", "RWTH Aachen" ] ]
The reaction $e^+e^-$ annihilation into three jets was recently computed for massive quarks at next-to-leading order in perturbative QCD. We discuss some results of our calculation for b jets produced at the Z resonance.
0711.1468
Ruben Concei\c{c}\~ao
J. Alvarez-Muniz, R. Conceicao, J. Dias de Deus, M.C. Espirito Santo, J. G. Milhano, M. Pimenta
Net-Baryon Physics: Basic Mechanisms
null
null
null
null
hep-ph
null
It is well known that, in nuclear collisions, a sizable fraction of the available energy is carried away by baryons. As the baryon number is conserved, the net-baryon $B-\bar{B}$ retains information on the energy-momentum carried by the incoming nuclei. A simple but consistent model for net-baryon production in high ...
[ { "created": "Fri, 9 Nov 2007 14:29:23 GMT", "version": "v1" }, { "created": "Mon, 12 Nov 2007 11:15:08 GMT", "version": "v2" } ]
2007-11-12
[ [ "Alvarez-Muniz", "J.", "" ], [ "Conceicao", "R.", "" ], [ "de Deus", "J. Dias", "" ], [ "Santo", "M. C. Espirito", "" ], [ "Milhano", "J. G.", "" ], [ "Pimenta", "M.", "" ] ]
It is well known that, in nuclear collisions, a sizable fraction of the available energy is carried away by baryons. As the baryon number is conserved, the net-baryon $B-\bar{B}$ retains information on the energy-momentum carried by the incoming nuclei. A simple but consistent model for net-baryon production in high en...
0709.0351
Thomas Gehrmann
T. Gehrmann
Tools for NNLO QCD Calculations
8 pages, LaTeX, to appear in the proceedings of the International Linear Collider Workshop LCWS07, Hamburg, 2007
ECONF C0705302:LOOP05,2007
null
ZU-TH 22/07
hep-ph
null
For precision studies with QCD observables at colliders, higher order perturbative corrections are often mandatory. For exclusive observables, like jet cross sections or differential distributions, these corrections were until recently only known to next-to-leading order (NLO) in perturbation theory. Owing to many ne...
[ { "created": "Tue, 4 Sep 2007 07:53:04 GMT", "version": "v1" } ]
2008-12-30
[ [ "Gehrmann", "T.", "" ] ]
For precision studies with QCD observables at colliders, higher order perturbative corrections are often mandatory. For exclusive observables, like jet cross sections or differential distributions, these corrections were until recently only known to next-to-leading order (NLO) in perturbation theory. Owing to many new ...
1506.02443
Miloslav Svec
Miloslav Svec
Consistency of pipi phase shift analyses with rho^0(770)-f_0(980) spin mixing in pi(-)p->pi(-)pi(+)n
29 pages, 20 figures, labels in Figure 2 corrected
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We have performed two analytical pipi phase shift analyses using a Standard amplitude analysis of the CERN data on pi(-)p->pi(-)pi(+)n on polarized target at 17.2 GeV/c and a more recent analysis of the same data using Spin Mixing Mechanism (SMM). There are two solutions for helicity amplitudes labeled (1,1) and (2,2...
[ { "created": "Mon, 8 Jun 2015 11:29:49 GMT", "version": "v1" }, { "created": "Thu, 25 Jun 2015 12:07:03 GMT", "version": "v2" } ]
2015-06-26
[ [ "Svec", "Miloslav", "" ] ]
We have performed two analytical pipi phase shift analyses using a Standard amplitude analysis of the CERN data on pi(-)p->pi(-)pi(+)n on polarized target at 17.2 GeV/c and a more recent analysis of the same data using Spin Mixing Mechanism (SMM). There are two solutions for helicity amplitudes labeled (1,1) and (2,2) ...
1002.4215
Richard Hill
Richard J. Hill
On the single photon background to nu_e appearance at MiniBooNE
5 pages, 5 figures
Phys.Rev.D84:017501,2011
10.1103/PhysRevD.84.017501
EFI Preprint 10-3
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Neglected single photon processes are fit to an excess of electron-like events observed in a predominantly nu_mu beam at MiniBooNE. Predictions are given for analogous events in antineutrino mode.
[ { "created": "Mon, 22 Feb 2010 23:49:26 GMT", "version": "v1" } ]
2011-08-08
[ [ "Hill", "Richard J.", "" ] ]
Neglected single photon processes are fit to an excess of electron-like events observed in a predominantly nu_mu beam at MiniBooNE. Predictions are given for analogous events in antineutrino mode.
2312.07923
Yuhua Yao
Xu-Lin Dong, Yu-Hua Yao, Yi-Qing Guo, Shu-Wang Cui
A new understanding of nuclei spectra properties with propagation model
8 pages, 8 figures. accepted by PRD
null
null
null
hep-ph astro-ph.HE
http://creativecommons.org/licenses/by-nc-sa/4.0/
The AMS-02 experiment has observed new properties of primary cosmic rays (CRs) categorized into two groups: He-C-O-Fe and Ne-Mg-Si-S, which are independent of CR propagation. In this study, we investigate the unexpected properties of these nuclei using a spatial propagation model. All nuclei spectra are accurately re...
[ { "created": "Wed, 13 Dec 2023 06:43:41 GMT", "version": "v1" }, { "created": "Thu, 7 Mar 2024 09:40:18 GMT", "version": "v2" } ]
2024-03-08
[ [ "Dong", "Xu-Lin", "" ], [ "Yao", "Yu-Hua", "" ], [ "Guo", "Yi-Qing", "" ], [ "Cui", "Shu-Wang", "" ] ]
The AMS-02 experiment has observed new properties of primary cosmic rays (CRs) categorized into two groups: He-C-O-Fe and Ne-Mg-Si-S, which are independent of CR propagation. In this study, we investigate the unexpected properties of these nuclei using a spatial propagation model. All nuclei spectra are accurately repr...
0807.2211
Slava Khruschev
S. A. Kononogov, V. N. Melnikov, V. V. Khruschov
Constants of extended Standard Model and search for their temporal variations
15 pages
Grav.Cosmol.15:158-163,2009
10.1134/S020228930902011X
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Some methods for the determination and the most precise values of constants of an extended Standard Model, which include the gravitation interaction and massive neutrinos, are presented. Accuracies of constants at different energy scales are compared and the possible manifestations of temporal variations of constants...
[ { "created": "Mon, 14 Jul 2008 17:21:28 GMT", "version": "v1" } ]
2010-04-30
[ [ "Kononogov", "S. A.", "" ], [ "Melnikov", "V. N.", "" ], [ "Khruschov", "V. V.", "" ] ]
Some methods for the determination and the most precise values of constants of an extended Standard Model, which include the gravitation interaction and massive neutrinos, are presented. Accuracies of constants at different energy scales are compared and the possible manifestations of temporal variations of constants a...
hep-ph/9505225
null
Bernd A. Kniehl (FNAL) and M. Spira (University of Hamburg)
Low-Energy Theorems in Higgs Physics
24 pages, latex, no figures
Z.Phys. C69 (1995) 77-88
null
DESY 95-041, FERMILAB-PUB-95/081-T, MPI/PhT/95--21
hep-ph
null
We present low-energy theorems for the calculation of loop amplitudes with external scalar or pseudoscalar Higgs bosons which are light compared to the loop particles. Starting from existing lowest-order versions of these theorems, we show how their applicability may be extended to the two--loop level. To illustrate ...
[ { "created": "Wed, 3 May 1995 19:09:26 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kniehl", "Bernd A.", "", "FNAL" ], [ "Spira", "M.", "", "University of Hamburg" ] ]
We present low-energy theorems for the calculation of loop amplitudes with external scalar or pseudoscalar Higgs bosons which are light compared to the loop particles. Starting from existing lowest-order versions of these theorems, we show how their applicability may be extended to the two--loop level. To illustrate th...
1812.07424
Adil Jueid
Simone Amoroso, Sascha Caron, Adil Jueid, Roberto Ruiz de Austri, Peter Skands
Estimating QCD uncertainties in Monte Carlo event generators for gamma-ray dark matter searches
Tables for the particle spectra with their uncertainties can be found in https://zenodo.org/record/3764809#.XqvK0y-cZQJ; Discussion slightly improved, and some references are added. Comments are welcome!
JCAP 1905 (2019) 007
10.1088/1475-7516/2019/05/007
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Motivated by the recent galactic center gamma-ray excess identified in the Fermi-LAT data, we perform a detailed study of QCD fragmentation uncertainties in the modeling of the energy spectra of gamma-rays from Dark-Matter (DM) annihilation. When Dark-Matter particles annihilate to coloured final states, either direc...
[ { "created": "Tue, 18 Dec 2018 15:10:09 GMT", "version": "v1" }, { "created": "Sun, 27 Oct 2019 15:26:34 GMT", "version": "v2" }, { "created": "Fri, 1 May 2020 07:47:13 GMT", "version": "v3" } ]
2020-05-04
[ [ "Amoroso", "Simone", "" ], [ "Caron", "Sascha", "" ], [ "Jueid", "Adil", "" ], [ "de Austri", "Roberto Ruiz", "" ], [ "Skands", "Peter", "" ] ]
Motivated by the recent galactic center gamma-ray excess identified in the Fermi-LAT data, we perform a detailed study of QCD fragmentation uncertainties in the modeling of the energy spectra of gamma-rays from Dark-Matter (DM) annihilation. When Dark-Matter particles annihilate to coloured final states, either directl...
hep-ph/9309288
Miriam Leurer
Miriam Leurer (Weizmann Institute)
New Bounds on Leptoquarks
6 Pages (LaTeX), including 3 uufiled postscript figures. WIS-93/89/Sept-PH. (Contributed talk at the 5th International Symposium on Heavy Flavour Physics, McGill University, July 6-10, 1993.)
null
null
null
hep-ph
null
We show that FCNC processes are unavoidable for leptoquarks that couple to left handed quarks, and derive new FCNC bounds from neutral meson mixing. Despite being induced only at one loop, these processes lead to significant bounds since the leptoquark contributions do not suffer from GIM cancellations. Studying the ...
[ { "created": "Sun, 19 Sep 1993 17:10:45 GMT", "version": "v1" } ]
2007-05-23
[ [ "Leurer", "Miriam", "", "Weizmann Institute" ] ]
We show that FCNC processes are unavoidable for leptoquarks that couple to left handed quarks, and derive new FCNC bounds from neutral meson mixing. Despite being induced only at one loop, these processes lead to significant bounds since the leptoquark contributions do not suffer from GIM cancellations. Studying the im...
hep-ph/0307384
Michael Klasen
M. Klasen, B.A. Kniehl
Heavy Quarkonium Production with Polarized Hadrons and Photons
6 pages, 3 figures, contribution to DIS03
null
null
null
hep-ph
null
We investigate the inclusive production of prompt J/psi mesons in polarized hadron-hadron and photon-hadron collisions in the factorization formalism of NRQCD. Numerical results are presented for BNL RHIC-Spin and the approved SLAC fixed-target experiment E161 to assess the feasibility to access the spin-dependent pa...
[ { "created": "Thu, 31 Jul 2003 07:38:50 GMT", "version": "v1" } ]
2007-05-23
[ [ "Klasen", "M.", "" ], [ "Kniehl", "B. A.", "" ] ]
We investigate the inclusive production of prompt J/psi mesons in polarized hadron-hadron and photon-hadron collisions in the factorization formalism of NRQCD. Numerical results are presented for BNL RHIC-Spin and the approved SLAC fixed-target experiment E161 to assess the feasibility to access the spin-dependent part...
hep-ph/9402302
Jim Ohnemus
J. Ohnemus, T.F. Walsh, and P.M. Zerwas
$\gamma \gamma$ Production of Non--Strongly Interacting SUSY Particles at Hadron Colliders
6 pages plus 2 postscript figures appended as uuencoded compressed tar file, DESY 93--173, UCD--93--39
Phys.Lett. B328 (1994) 369-373
10.1016/0370-2693(94)91492-3
null
hep-ph
null
Non--strongly interacting supersymmetric particles -- sleptons, charginos, neutral\-inos, and charged Higgs bosons -- are difficult to detect at the Large Hadron Collider. We therefore examine the possibility of producing particles of this type in virtual $\gamma \gamma$ collisions at the LHC. Since photons can be em...
[ { "created": "Wed, 16 Feb 1994 20:16:31 GMT", "version": "v1" } ]
2009-10-28
[ [ "Ohnemus", "J.", "" ], [ "Walsh", "T. F.", "" ], [ "Zerwas", "P. M.", "" ] ]
Non--strongly interacting supersymmetric particles -- sleptons, charginos, neutral\-inos, and charged Higgs bosons -- are difficult to detect at the Large Hadron Collider. We therefore examine the possibility of producing particles of this type in virtual $\gamma \gamma$ collisions at the LHC. Since photons can be emit...
hep-ph/9805333
Yamaguchi Masahide
Masahide Yamaguchi and Jun'ichi Yokoyama
Probability Distribution Function of the Coarse-grained Scalar Field at Finite Temperature
15 pages, uuencode, gzipped tar file including LaTeX text and 4 postscript figures. Nuclear Physics B, in press
Nucl.Phys. B523 (1998) 363-376
10.1016/S0550-3213(98)00100-X
UTAP-281, YITP-97-55
hep-ph astro-ph
null
We present a formalism to calculate the probability distribution function of a scalar field coarse-grained over some spatial scales with a Gaussian filter at finite temperature. As an application, we investigate the role of subcritical fluctuations in the electroweak phase transition in the minimal standard model. It...
[ { "created": "Fri, 15 May 1998 05:56:52 GMT", "version": "v1" } ]
2009-10-31
[ [ "Yamaguchi", "Masahide", "" ], [ "Yokoyama", "Jun'ichi", "" ] ]
We present a formalism to calculate the probability distribution function of a scalar field coarse-grained over some spatial scales with a Gaussian filter at finite temperature. As an application, we investigate the role of subcritical fluctuations in the electroweak phase transition in the minimal standard model. It i...
hep-ph/0602072
BingAn Li
Bing An Li (Univ. of Kentucky)
Production of a Q^2\bar{Q}^2 state in J/\psi\to \gamma\omega\phi
13 pages
Phys.Rev.D74:054017,2006
10.1103/PhysRevD.74.054017
null
hep-ph
null
The resonance X(1810) discovered in $J/\psi\to \gamma\omega\phi$ by BESII is considered as a candidate of $0^{++}$ $Q^2\bar{Q}^2$ state. This model predicts that $X\to\omega\phi, K^* K^*$ are the two dominant decay channels and $X\to KK, \eta\eta, \eta\eta'$ are suppressed. The cross sections of $\gamma\gamma\to X\to...
[ { "created": "Wed, 8 Feb 2006 15:50:56 GMT", "version": "v1" }, { "created": "Thu, 9 Feb 2006 13:37:36 GMT", "version": "v2" } ]
2008-11-26
[ [ "Li", "Bing An", "", "Univ. of Kentucky" ] ]
The resonance X(1810) discovered in $J/\psi\to \gamma\omega\phi$ by BESII is considered as a candidate of $0^{++}$ $Q^2\bar{Q}^2$ state. This model predicts that $X\to\omega\phi, K^* K^*$ are the two dominant decay channels and $X\to KK, \eta\eta, \eta\eta'$ are suppressed. The cross sections of $\gamma\gamma\to X\to \...
1102.0013
Rizwan Khalid
Ilia Gogoladze, Rizwan Khalid, Shabbar Raza and Qaisar Shafi
Higgs and Sparticle Spectroscopy with Gauge-Yukawa Unification
23 pages, 10 figures, 1 table; Typos fixed in section 4
JHEP 1106:117,2011
10.1007/JHEP06(2011)117
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We explore the Higgs and sparticle spectroscopy of supersymmetric SU(4)_c x SU(2)_L x SU(2)_R models in which the three MSSM gauge couplings and third family (t-b-tau) Yukawa couplings are all unified at M_GUT. This class of models can be obtained via compactification of a higher dimensional theory. Allowing for oppo...
[ { "created": "Mon, 31 Jan 2011 21:12:32 GMT", "version": "v1" }, { "created": "Sat, 3 Mar 2012 06:16:38 GMT", "version": "v2" } ]
2012-03-06
[ [ "Gogoladze", "Ilia", "" ], [ "Khalid", "Rizwan", "" ], [ "Raza", "Shabbar", "" ], [ "Shafi", "Qaisar", "" ] ]
We explore the Higgs and sparticle spectroscopy of supersymmetric SU(4)_c x SU(2)_L x SU(2)_R models in which the three MSSM gauge couplings and third family (t-b-tau) Yukawa couplings are all unified at M_GUT. This class of models can be obtained via compactification of a higher dimensional theory. Allowing for opposi...
1509.00050
Susan Gardner
S. Gardner, R. J. Holt, A. S. Tadepalli
New Prospects in Fixed Target Searches for Dark Forces with the SeaQuest Experiment at Fermilab
14 pages, 8 figures; improved sensitivity analysis and cross-checks; small shifts in the expected limits; conclusions unchanged; refs. added
Phys. Rev. D 93, 115015 (2016)
10.1103/PhysRevD.93.115015
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
An intense, 120 GeV proton beam incident on an extremely long, iron target generates enormous numbers of light-mass particles that also decay within that target. If one of these particles decays to a final state with a hidden gauge boson, or if such a particle is produced as a result of the initial collision, then th...
[ { "created": "Mon, 31 Aug 2015 20:28:21 GMT", "version": "v1" }, { "created": "Sun, 13 Mar 2016 02:15:32 GMT", "version": "v2" } ]
2016-06-15
[ [ "Gardner", "S.", "" ], [ "Holt", "R. J.", "" ], [ "Tadepalli", "A. S.", "" ] ]
An intense, 120 GeV proton beam incident on an extremely long, iron target generates enormous numbers of light-mass particles that also decay within that target. If one of these particles decays to a final state with a hidden gauge boson, or if such a particle is produced as a result of the initial collision, then that...
2002.11077
Elena Santopinto
C. Becchi, A. Giachino, L. Maiani, E. Santopinto
Search for $bb\bar{b}\bar{b}$ tetraquark decays in 4 muons, $B^{+} B^{-}$, $B^0 \bar{B}^0$ and $B_s^0 \bar{B}_s^0$ channels at LHC
11 pages, 1 figure
null
10.1016/j.physletb.2020.135495
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We perform a quantitative analysis of the $bb\bar{b}\bar{b}$ tetraquark decays into hidden- and open-bottom mesons and calculate, for the first time, the $bb\bar{b}\bar{b}$ tetraquark total decay width. On the basis of our results, we propose the $bb\bar{b}\bar{b} \to B^{+} B^{-} (B^0 \bar{B}^0) (B_s^0 \bar{B}_s^0) \...
[ { "created": "Tue, 25 Feb 2020 18:13:18 GMT", "version": "v1" } ]
2020-06-24
[ [ "Becchi", "C.", "" ], [ "Giachino", "A.", "" ], [ "Maiani", "L.", "" ], [ "Santopinto", "E.", "" ] ]
We perform a quantitative analysis of the $bb\bar{b}\bar{b}$ tetraquark decays into hidden- and open-bottom mesons and calculate, for the first time, the $bb\bar{b}\bar{b}$ tetraquark total decay width. On the basis of our results, we propose the $bb\bar{b}\bar{b} \to B^{+} B^{-} (B^0 \bar{B}^0) (B_s^0 \bar{B}_s^0) \to...
1207.1541
Roshan Foadi
Roshan Foadi and Francesco Sannino
S and T Parameters from a Light Nonstandard Higgs versus Near Conformal Dynamics
13 pages, 3 figures
null
10.1103/PhysRevD.87.015008
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We determine the contribution to the $S$ and $T$ parameters coming from extensions of the standard model featuring a light nonstandard-like Higgs particle. We neatly separate, using the Landau gauge, the contribution from the purely nonstandard Higgs sector, from the one due to the interplay of this sector with the s...
[ { "created": "Fri, 6 Jul 2012 07:39:23 GMT", "version": "v1" } ]
2013-05-30
[ [ "Foadi", "Roshan", "" ], [ "Sannino", "Francesco", "" ] ]
We determine the contribution to the $S$ and $T$ parameters coming from extensions of the standard model featuring a light nonstandard-like Higgs particle. We neatly separate, using the Landau gauge, the contribution from the purely nonstandard Higgs sector, from the one due to the interplay of this sector with the sta...
hep-ph/0111161
E. D. M. Kavoussanaki
E.D.M. Kavoussanaki
On Topological Defects
5 pages
null
null
null
hep-ph
null
The language and methods of algebraic topology, particularly homotopy theory, have been extensively used in the study of the identification, the classification and the evolution of defects. Topological methods provide the means for the detection of gross features, such as holes in a manifold, and therefore one would ...
[ { "created": "Tue, 13 Nov 2001 12:26:21 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kavoussanaki", "E. D. M.", "" ] ]
The language and methods of algebraic topology, particularly homotopy theory, have been extensively used in the study of the identification, the classification and the evolution of defects. Topological methods provide the means for the detection of gross features, such as holes in a manifold, and therefore one would cl...
1512.07527
Sreerup Raychaudhuri
Sabyasachi Chakraborty, Amit Chakraborty, Sreerup Raychaudhuri
Diphoton resonance at 750 GeV in the broken MRSSM
7 pages, revtex4, 2 eps figures, minor changes made in text and some references added
Phys. Rev. D 94, 035014 (2016)
10.1103/PhysRevD.94.035014
TIFR-TH/15-47
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Non-observation of superpartners of the Standard Model particles at the early runs of the LHC provide strong motivation for an $R$-symmetric minimal supersymmetric Standard Model, or MRSSM. This model also comes with a pair of extra scalars which couple only to superpartners at the tree level. We demonstrate that in ...
[ { "created": "Wed, 23 Dec 2015 15:56:07 GMT", "version": "v1" }, { "created": "Thu, 14 Jan 2016 16:36:54 GMT", "version": "v2" } ]
2016-08-17
[ [ "Chakraborty", "Sabyasachi", "" ], [ "Chakraborty", "Amit", "" ], [ "Raychaudhuri", "Sreerup", "" ] ]
Non-observation of superpartners of the Standard Model particles at the early runs of the LHC provide strong motivation for an $R$-symmetric minimal supersymmetric Standard Model, or MRSSM. This model also comes with a pair of extra scalars which couple only to superpartners at the tree level. We demonstrate that in th...
hep-ph/0702128
Meng Lu
Eric Braaten, Meng Lu and Jungil Lee
Weakly-bound Hadronic Molecule near a 3-body Threshold
37 pages, 13 figures, submitted to Phys.Rev.D
Phys.Rev.D76:054010,2007
10.1103/PhysRevD.76.054010
null
hep-ph
null
The X(3872) seems to be a loosely-bound hadronic molecule whose constituents are two charm mesons. A novel feature of this molecule is that the mass difference of the constituents is close to the mass of a lighter meson that can be exchanged between them, namely the pion. We analyze this feature in a simple model wit...
[ { "created": "Tue, 13 Feb 2007 05:17:02 GMT", "version": "v1" } ]
2008-11-26
[ [ "Braaten", "Eric", "" ], [ "Lu", "Meng", "" ], [ "Lee", "Jungil", "" ] ]
The X(3872) seems to be a loosely-bound hadronic molecule whose constituents are two charm mesons. A novel feature of this molecule is that the mass difference of the constituents is close to the mass of a lighter meson that can be exchanged between them, namely the pion. We analyze this feature in a simple model with ...
1203.3825
He Zhang
Werner Rodejohann, He Zhang
Impact of massive neutrinos on the Higgs self-coupling and electroweak vacuum stability
17 pages, 7 figures, minor revisions, version to appear in JHEP
null
10.1007/JHEP06(2012)022
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The presence of right-handed neutrinos in the type I seesaw mechanism may lead to significant corrections to the RG evolution of the Higgs self-coupling. Compared to the Standard Model case, the Higgs mass window can become narrower, and the cutoff scale become lower. Naively, these effects decrease with decreasing r...
[ { "created": "Fri, 16 Mar 2012 22:21:07 GMT", "version": "v1" }, { "created": "Mon, 4 Jun 2012 14:42:46 GMT", "version": "v2" } ]
2015-06-04
[ [ "Rodejohann", "Werner", "" ], [ "Zhang", "He", "" ] ]
The presence of right-handed neutrinos in the type I seesaw mechanism may lead to significant corrections to the RG evolution of the Higgs self-coupling. Compared to the Standard Model case, the Higgs mass window can become narrower, and the cutoff scale become lower. Naively, these effects decrease with decreasing rig...
1701.00894
Xiang Liu
Qi Huang, Bo Wang, Xiang Liu, Dian-Yong Chen, and Takayuki Matsuki
Exploring the $\Upsilon(6S)\to \chi_{bJ}\phi$ and $\Upsilon(6S)\to \chi_{bJ}\omega$ hidden-bottom hadronic transitions
10 pages, 10 figures and 1 table. Accepted by Eur. Phys. J. C
Eur. Phys. J. C, 77 (2017) 165
10.1140/epjc/s10052-017-4726-8
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this work, we investigate the hadronic loop contributions to the $\Upsilon(6S) \to \chi_{bJ} \phi~(J=0,1,2)$ along with $\Upsilon(6S) \to \chi_{bJ} \omega~(J=0,1,2)$ transitions. We predict that the branching ratios of $\Upsilon(6S) \to \chi_{b0} \phi$, $\Upsilon(6S) \to \chi_{b1} \phi$ and $\Upsilon(6S) \to \chi_...
[ { "created": "Wed, 4 Jan 2017 04:03:22 GMT", "version": "v1" }, { "created": "Tue, 28 Feb 2017 00:00:57 GMT", "version": "v2" } ]
2017-03-23
[ [ "Huang", "Qi", "" ], [ "Wang", "Bo", "" ], [ "Liu", "Xiang", "" ], [ "Chen", "Dian-Yong", "" ], [ "Matsuki", "Takayuki", "" ] ]
In this work, we investigate the hadronic loop contributions to the $\Upsilon(6S) \to \chi_{bJ} \phi~(J=0,1,2)$ along with $\Upsilon(6S) \to \chi_{bJ} \omega~(J=0,1,2)$ transitions. We predict that the branching ratios of $\Upsilon(6S) \to \chi_{b0} \phi$, $\Upsilon(6S) \to \chi_{b1} \phi$ and $\Upsilon(6S) \to \chi_{b...
hep-ph/0009137
Eduard Kuraev
E.A.Kuraev (JINR), L.N.Lipatov (PNPI), T.V.Shishkina (BSU)
QED radiative corrections to impact factors
8 pp, plain LaTeX
J.Exp.Theor.Phys. 92 (2001) 203-209; Zh.Eksp.Teor.Fiz. 92 (2001) 236-242
10.1134/1.1354677
null
hep-ph
null
We consider the radiative corrections to the impact factors of electron and photon. According to a generalized eikonal representation the e\bar e scattering amplitude at high energies and fixed momentum transfers is proportional to the electron form factor. But we show that this representation is violated due to the ...
[ { "created": "Tue, 12 Sep 2000 06:23:54 GMT", "version": "v1" } ]
2009-10-31
[ [ "Kuraev", "E. A.", "", "JINR" ], [ "Lipatov", "L. N.", "", "PNPI" ], [ "Shishkina", "T. V.", "", "BSU" ] ]
We consider the radiative corrections to the impact factors of electron and photon. According to a generalized eikonal representation the e\bar e scattering amplitude at high energies and fixed momentum transfers is proportional to the electron form factor. But we show that this representation is violated due to the pr...
1708.07956
Ozan Sarg{\i}n
Durmu\c{s} Demir, Canan Karahan, Beste Korutlu, Ozan Sarg{\i}n
Hidden Spin-3/2 Field in the Standard Model
8 pages, 8 figures, accepted for publication in Eur. Phys. J. C
Eur.Phys.J.C 77 (2017) 9, 593
10.1140/epjc/s10052-017-5164-3
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Here we show that a massive spin-3/2 field can hide in the SM spectrum in a way revealing itself only virtually. We study collider signatures and loop effects of this field, and determine its role in Higgs inflation and its potential as Dark Matter. We show that this spin-3/2 field has a rich linear collider phenomen...
[ { "created": "Sat, 26 Aug 2017 10:44:42 GMT", "version": "v1" } ]
2024-02-08
[ [ "Demir", "Durmuş", "" ], [ "Karahan", "Canan", "" ], [ "Korutlu", "Beste", "" ], [ "Sargın", "Ozan", "" ] ]
Here we show that a massive spin-3/2 field can hide in the SM spectrum in a way revealing itself only virtually. We study collider signatures and loop effects of this field, and determine its role in Higgs inflation and its potential as Dark Matter. We show that this spin-3/2 field has a rich linear collider phenomenol...
hep-ph/9909518
Uma Mahanta
Uma Mahanta
Neutrino masses and mixing angles from leptoquark interactions
The expressions for majorana mass matrix of neutrinos have been corrected so that they are symmetric. Final version to be published in Physical Review D
Phys.Rev. D62 (2000) 073009
10.1103/PhysRevD.62.073009
null
hep-ph
null
In this paper we show that the mixing between leptoquarks (LQ's) from different $SU(2)_l$ multiplets can generate a non-trivial Majorana mass matrix for neutrinos through one loop self energy diagrams. Such mixing can arise from gauge invariant and renormalizable LQ-Higgs interaction terms after EW symmetry breaking....
[ { "created": "Mon, 27 Sep 1999 11:18:14 GMT", "version": "v1" }, { "created": "Fri, 19 May 2000 13:22:05 GMT", "version": "v2" } ]
2009-10-31
[ [ "Mahanta", "Uma", "" ] ]
In this paper we show that the mixing between leptoquarks (LQ's) from different $SU(2)_l$ multiplets can generate a non-trivial Majorana mass matrix for neutrinos through one loop self energy diagrams. Such mixing can arise from gauge invariant and renormalizable LQ-Higgs interaction terms after EW symmetry breaking. W...
hep-ph/0410325
Zuo-Tang Liang
Zuo-Tang Liang (Shandong U.)
Spin structure of nucleon and spin transfer in high energy fragmentation process
Invited contribution to the 10th International Symposium on Meson-Nucleon Physics & the Structure of the Nucleon (MENU2004), 4 pages, 1 figure
Int.J.Mod.Phys. A20 (2005) 1998-2001
10.1142/S0217751X05023827
null
hep-ph
null
Spin transfer in high energy fragmentation process is determined by the hadronization mechanism and spin structure of hadrons.It can be studied by measuring the polarizations of hyperons and/or vector mesons in e+e- annihilation, in the current fragmentation region of polarized deeply inelastic lN-scatterings, and hi...
[ { "created": "Mon, 25 Oct 2004 06:21:24 GMT", "version": "v1" } ]
2009-11-10
[ [ "Liang", "Zuo-Tang", "", "Shandong U." ] ]
Spin transfer in high energy fragmentation process is determined by the hadronization mechanism and spin structure of hadrons.It can be studied by measuring the polarizations of hyperons and/or vector mesons in e+e- annihilation, in the current fragmentation region of polarized deeply inelastic lN-scatterings, and high...
1607.01468
Jayden Newstead
James B. Dent, Bhaskar Dutta, Jayden L. Newstead and Louis E. Strigari
Dark matter, light mediators, and the neutrino floor
4 pages, 2 figures
Phys. Rev. D 95, 051701 (2017)
10.1103/PhysRevD.95.051701
null
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We analyze future direct data matter detection experiments using Effective Field Theory (EFT) operators with light, $\lesssim 100$ MeV mass mediators. We compare the nuclear recoil energy spectra from these operators to the predicted high energy solar neutrino spectrum. A set of operators that generate spectra simila...
[ { "created": "Wed, 6 Jul 2016 03:13:07 GMT", "version": "v1" } ]
2017-03-29
[ [ "Dent", "James B.", "" ], [ "Dutta", "Bhaskar", "" ], [ "Newstead", "Jayden L.", "" ], [ "Strigari", "Louis E.", "" ] ]
We analyze future direct data matter detection experiments using Effective Field Theory (EFT) operators with light, $\lesssim 100$ MeV mass mediators. We compare the nuclear recoil energy spectra from these operators to the predicted high energy solar neutrino spectrum. A set of operators that generate spectra similar ...
hep-ph/9504357
Kotikov Anatoly
A.V.Kotikov (Lab. Phys. Theor. ENSLAPP LAPP, Annecy-le-Vieux, France)
Small $x$ Behaviour of Parton Distributions in Proton
11 pages, Latex without figures
Mod.Phys.Lett.A11:103-118,1996
10.1142/S0217732396000138
null
hep-ph
null
The paper presents the $QCD$ description of the hard and semihard processes in the framework of the Wilson operator product expansion. The smooth transition between the cases of the soft and hard Pomerons is obtained.
[ { "created": "Fri, 21 Apr 1995 09:07:08 GMT", "version": "v1" } ]
2014-11-17
[ [ "Kotikov", "A. V.", "", "Lab. Phys. Theor. ENSLAPP LAPP, Annecy-le-Vieux, France" ] ]
The paper presents the $QCD$ description of the hard and semihard processes in the framework of the Wilson operator product expansion. The smooth transition between the cases of the soft and hard Pomerons is obtained.
1801.04729
Peiwen Wu
Takaaki Nomura, Hiroshi Okada, Peiwen Wu
A radiative neutrino mass model in light of DAMPE excess with hidden gauged $U(1)$ symmetry
14 pages, 5 figures, 1 table
null
10.1088/1475-7516/2018/05/053
null
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a one-loop induced neutrino mass model with hidden $U(1)$ gauge symmetry, in which we successfully involve a bosonic dark matter (DM) candidate propagating inside a loop diagram in neutrino mass generation to explain the $e^+e^-$ excess recently reported by the DArk Matter Particle Explorer (DAMPE) experim...
[ { "created": "Mon, 15 Jan 2018 10:44:16 GMT", "version": "v1" }, { "created": "Wed, 7 Feb 2018 07:56:47 GMT", "version": "v2" } ]
2018-06-06
[ [ "Nomura", "Takaaki", "" ], [ "Okada", "Hiroshi", "" ], [ "Wu", "Peiwen", "" ] ]
We propose a one-loop induced neutrino mass model with hidden $U(1)$ gauge symmetry, in which we successfully involve a bosonic dark matter (DM) candidate propagating inside a loop diagram in neutrino mass generation to explain the $e^+e^-$ excess recently reported by the DArk Matter Particle Explorer (DAMPE) experimen...
hep-ph/0202194
Lorenz von Smekal
Christoph Lerche (1,2) and Lorenz von Smekal (1) ((1) Universitaet Erlangen-Nuernberg, (2) Instituto de Fisica Corpuscular, Valencia)
On the Infrared Exponent for Gluon and Ghost Propagation in Landau Gauge QCD
22 Pages, 10 Figures, LaTeX2e, revtex4, some notes and references added in response to communications
Phys.Rev. D65 (2002) 125006
10.1103/PhysRevD.65.125006
FAU-TP3-01/11
hep-ph hep-th
null
In the covariant description of confinement, one expects the ghost correlations to be infrared enhanced. Assuming ghost dominance, the long-range behavior of gluon and ghost correlations in Landau gauge QCD is determined by one exponent kappa. The gluon propagator is infrared finite (vanishing) for kappa =1/2 (kappa ...
[ { "created": "Wed, 20 Feb 2002 15:52:48 GMT", "version": "v1" }, { "created": "Wed, 27 Feb 2002 11:58:37 GMT", "version": "v2" } ]
2009-11-07
[ [ "Lerche", "Christoph", "" ], [ "von Smekal", "Lorenz", "" ] ]
In the covariant description of confinement, one expects the ghost correlations to be infrared enhanced. Assuming ghost dominance, the long-range behavior of gluon and ghost correlations in Landau gauge QCD is determined by one exponent kappa. The gluon propagator is infrared finite (vanishing) for kappa =1/2 (kappa > ...
1908.11741
Wei Liu
Frank F. Deppisch, Suchita Kulkarni, Wei Liu
Searching for a light $Z'$ through Higgs production at the LHC
26 pages, 9 figures, 9 references added, matches published version
Phys. Rev. D 100, 115023 (2019)
10.1103/PhysRevD.100.115023
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate the potential of LHC resonance searches in leptonic final states to probe the $Z'$ in the minimal $U(1)_{B-L}$ model. Considering the current constraints on the $Z'$ in terms of its mass $m_{Z'}$ and the associated gauge coupling $g_{B-L}$ as well as constraints in the Higgs sector, we analyse the pote...
[ { "created": "Fri, 30 Aug 2019 13:54:42 GMT", "version": "v1" }, { "created": "Thu, 12 Dec 2019 11:00:34 GMT", "version": "v2" } ]
2019-12-18
[ [ "Deppisch", "Frank F.", "" ], [ "Kulkarni", "Suchita", "" ], [ "Liu", "Wei", "" ] ]
We investigate the potential of LHC resonance searches in leptonic final states to probe the $Z'$ in the minimal $U(1)_{B-L}$ model. Considering the current constraints on the $Z'$ in terms of its mass $m_{Z'}$ and the associated gauge coupling $g_{B-L}$ as well as constraints in the Higgs sector, we analyse the potent...
1201.2673
Angelo Raffaele Fazio
A. R. Fazio, S. C. Vargas
Helicity Spinor Methods and Tree Level QCD Corrections in Higgs Production via Weak Boson Fusion
Results presented by the authors in the poster session of The 29th Jerusalem Winter School in Theoretical Physics
null
null
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate analytically tree level amplitudes for Higgs production via Weak Bosons Fusion (WBF) and QCD corrections to the Standard Model prediction (SM) by using the helicity spinor formalism. We provide the explicit expression for the amplitude with two gluons emission in the final state together with massless fi...
[ { "created": "Thu, 12 Jan 2012 20:55:27 GMT", "version": "v1" } ]
2012-01-13
[ [ "Fazio", "A. R.", "" ], [ "Vargas", "S. C.", "" ] ]
We calculate analytically tree level amplitudes for Higgs production via Weak Bosons Fusion (WBF) and QCD corrections to the Standard Model prediction (SM) by using the helicity spinor formalism. We provide the explicit expression for the amplitude with two gluons emission in the final state together with massless fina...
1807.06388
Giuliano Giacalone
Giuliano Giacalone and Cyrille Marquet
Signature of gluon saturation in forward di-hadron correlations at the Large Hadron Collider
4 pages; 2 figures
null
10.1016/j.nuclphysa.2018.10.009
null
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We argue that gluon saturation effects may be visible in Large Hadron Collider (LHC) data. We look at the centrality dependence of the away-side peak of two-particle correlations measured in p-Pb collisions, using both ALICE data at midrapidity, and LHCb data at forward rapidity. Once the collective flow-like signal ...
[ { "created": "Tue, 17 Jul 2018 12:46:38 GMT", "version": "v1" } ]
2019-02-20
[ [ "Giacalone", "Giuliano", "" ], [ "Marquet", "Cyrille", "" ] ]
We argue that gluon saturation effects may be visible in Large Hadron Collider (LHC) data. We look at the centrality dependence of the away-side peak of two-particle correlations measured in p-Pb collisions, using both ALICE data at midrapidity, and LHCb data at forward rapidity. Once the collective flow-like signal me...
1701.05890
Gaurav Kumar Tomar
Gaurav Tomar
Lorentz invariance violation as an explanation of muon excess in Auger data
10 pages, 2 figures. v2: version accepted for publication in PRD
null
10.1103/PhysRevD.95.095035
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Auger collaboration has observed the number of muons which is higher than its prediction by existing hadronic interaction models. We explain this excess of muons by using Lorentz invariance violation (LIV) in photon sector. As an outcome of Lorentz invariance violation, the dispersion relation of photon gets modi...
[ { "created": "Fri, 20 Jan 2017 18:45:20 GMT", "version": "v1" }, { "created": "Tue, 16 May 2017 09:02:15 GMT", "version": "v2" } ]
2017-06-28
[ [ "Tomar", "Gaurav", "" ] ]
The Auger collaboration has observed the number of muons which is higher than its prediction by existing hadronic interaction models. We explain this excess of muons by using Lorentz invariance violation (LIV) in photon sector. As an outcome of Lorentz invariance violation, the dispersion relation of photon gets modifi...
hep-ph/9712510
Stuart Raby
Stuart Raby (The Ohio State University)
Lepton Flavor Violation and Fermion Masses
11 pages, Latex, talk presented at the Workshop on Physics at the First Muon Collider and at the Front End of a Muon Collider, November 6-9,1997, FNAL
null
10.1063/1.56251
OHSTPY-HEP-T-97-025
hep-ph
null
Lepton flavor violation may be a signature of "GUT scale" physics, if the messenger scale for SUSY breaking is above the "GUT scale." We elaborate on the details of this simple statement in the following talk.
[ { "created": "Tue, 23 Dec 1997 18:03:42 GMT", "version": "v1" } ]
2009-10-30
[ [ "Raby", "Stuart", "", "The Ohio State University" ] ]
Lepton flavor violation may be a signature of "GUT scale" physics, if the messenger scale for SUSY breaking is above the "GUT scale." We elaborate on the details of this simple statement in the following talk.
2206.06933
Deepesh Bhamre
Deepesh Bhamre, Anuradha Misra
Infrared Divergences in $e^{+}e^{-}\rightarrow 2\; jets$ in the Light Front Coherent State Formalism
23 pages, 5 figures. Published version. Minor additions and changes compared to v2
Phys. Rev. D 107, 014001 (2023)
10.1103/PhysRevD.107.014001
null
hep-ph hep-th
http://creativecommons.org/licenses/by/4.0/
We study infrared (IR) divergences in light front quantum chromodynamics using a coherent state basis in light front time-ordered Hamiltonian perturbation theory. In computation of the S-matrix elements in Hamiltonian formalism, the IR divergences appear in the form of vanishing energy denominators. We consider the p...
[ { "created": "Tue, 14 Jun 2022 15:53:05 GMT", "version": "v1" }, { "created": "Sun, 30 Oct 2022 18:21:01 GMT", "version": "v2" }, { "created": "Mon, 30 Jan 2023 06:47:13 GMT", "version": "v3" } ]
2023-01-31
[ [ "Bhamre", "Deepesh", "" ], [ "Misra", "Anuradha", "" ] ]
We study infrared (IR) divergences in light front quantum chromodynamics using a coherent state basis in light front time-ordered Hamiltonian perturbation theory. In computation of the S-matrix elements in Hamiltonian formalism, the IR divergences appear in the form of vanishing energy denominators. We consider the pro...
1903.02017
Koji Nagano
Koji Nagano, Tomohiro Fujita, Yuta Michimura, Ippei Obata
Axion Dark Matter Search with Interferometric Gravitational Wave Detectors
7 pages, 2 figures
Phys. Rev. Lett. 123, 111301 (2019)
10.1103/PhysRevLett.123.111301
null
hep-ph astro-ph.CO astro-ph.IM physics.ins-det physics.optics
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Axion dark matter differentiates the phase velocities of the circular-polarized photons. In this Letter, a scheme to measure the phase difference by using a linear optical cavity is proposed. If the scheme is applied to the Fabry-P\'erot arm of Advanced LIGO-like (Cosmic-Explorer-like) gravitational wave detector, th...
[ { "created": "Tue, 5 Mar 2019 19:07:55 GMT", "version": "v1" }, { "created": "Thu, 31 Oct 2019 07:09:08 GMT", "version": "v2" } ]
2019-11-01
[ [ "Nagano", "Koji", "" ], [ "Fujita", "Tomohiro", "" ], [ "Michimura", "Yuta", "" ], [ "Obata", "Ippei", "" ] ]
Axion dark matter differentiates the phase velocities of the circular-polarized photons. In this Letter, a scheme to measure the phase difference by using a linear optical cavity is proposed. If the scheme is applied to the Fabry-P\'erot arm of Advanced LIGO-like (Cosmic-Explorer-like) gravitational wave detector, the ...
0907.5540
Pablo Roig
P. Roig
Hadronic tau decays into two and three meson modes within Resonance Chiral Theory
6 pages, no figures. Talk given at the Young Researchers Workshop: "Physics Challenges in the LHC Era" held in Frascati, May 11 and 14, 2009. Published in the Proceedings of the Workshop in the Frascati Physics Series
Volume XLVIII First Young Researchers Workshop "Physics Challenges in the LHC Era" 2009 Ed. E. Nardi Frascati, May 11th and May 14th, 2009 ISBN 978-88-86409-57-5
null
IFIC/09-38
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study two and three meson decays of the tau lepton within the framework of the Resonance Chiral Theory, that is based on the following properties of QCD: its chiral symmetry in the massless case, its large-N_C limit, and the asymptotic behaviour it demands to the relevant form factors. Most of the couplings in the...
[ { "created": "Fri, 31 Jul 2009 14:17:24 GMT", "version": "v1" } ]
2009-08-04
[ [ "Roig", "P.", "" ] ]
We study two and three meson decays of the tau lepton within the framework of the Resonance Chiral Theory, that is based on the following properties of QCD: its chiral symmetry in the massless case, its large-N_C limit, and the asymptotic behaviour it demands to the relevant form factors. Most of the couplings in the L...
1006.2309
Felix Riek
F. Riek (1) and J\"orn Knoll (2), ((1) Texas A&M University, (2) GSI Darmstadt)
Selfconsistent descriptions of vector-mesons in hot matter revisited
10 pages, 3 figure
Phys.Rev.C82:025207,2010
10.1103/PhysRevC.82.025207
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Technical concepts are presented that improve the selfconsistent treatment of vector-mesons in a hot and dense medium. First applications concern an interacting gas of pions and rho mesons. As an extension of earlier studies we thereby include RPA-type vertex corrections and further use dispersion relations in order ...
[ { "created": "Fri, 11 Jun 2010 13:39:29 GMT", "version": "v1" } ]
2014-11-21
[ [ "Riek", "F.", "" ], [ "Knoll", "Jörn", "" ] ]
Technical concepts are presented that improve the selfconsistent treatment of vector-mesons in a hot and dense medium. First applications concern an interacting gas of pions and rho mesons. As an extension of earlier studies we thereby include RPA-type vertex corrections and further use dispersion relations in order to...
1402.4412
Andrea Quadri
A. Quadri
High-energy QCD evolution from Slavnov-Taylor identity
7 pages, contributed to QCD-TNT-III - From quarks and gluons to hadronic matter: A bridge too far?, 2-6 September, 2013, European Centre for Theoretical Studies in Nuclear Physics and Related Areas (ECT*), Villazzano, Trento (Italy)
PoS(QCD-TNT-III)032, 2013
null
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We clarify the derivation of high-energy QCD evolution equations from the fundamental gauge symmetry of QCD. The gauge-fixed classical action of the Color Glass Condensate (CGC) is shown to be invariant under a suitable BRST symmetry, that holds after the separation of the gluon modes into their fast classical (backg...
[ { "created": "Tue, 18 Feb 2014 17:38:12 GMT", "version": "v1" } ]
2014-02-19
[ [ "Quadri", "A.", "" ] ]
We clarify the derivation of high-energy QCD evolution equations from the fundamental gauge symmetry of QCD. The gauge-fixed classical action of the Color Glass Condensate (CGC) is shown to be invariant under a suitable BRST symmetry, that holds after the separation of the gluon modes into their fast classical (backgro...
0804.4158
Nestor Armesto
N. Armesto
Predictions for the LHC: an Overview
8 pages, 3 eps figures included using graphicx; proceedings of Quark Matter 2008 (Jaipur, India, february 4th-10th 2008)
J.Phys.G35:104042,2008
10.1088/0954-3899/35/10/104042
null
hep-ph nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
I present an overview of predictions for the heavy ion program at the Large Hadron Collider. It is mainly based on the material presented during the workshop 'Heavy Ion Collisions at the LHC - Last Call for Predictions', held in the frame of the CERN Theory Institute from May 14th to June 10th 2007. Predictions on bo...
[ { "created": "Fri, 25 Apr 2008 17:55:55 GMT", "version": "v1" } ]
2008-11-26
[ [ "Armesto", "N.", "" ] ]
I present an overview of predictions for the heavy ion program at the Large Hadron Collider. It is mainly based on the material presented during the workshop 'Heavy Ion Collisions at the LHC - Last Call for Predictions', held in the frame of the CERN Theory Institute from May 14th to June 10th 2007. Predictions on both...
2211.16513
Jan Sch\"utte-Engel
Jacopo Ghiglieri, Jan Sch\"utte-Engel, Enrico Speranza
Freezing-In Gravitational Waves
18 pages, 6 figures (matches version published in Phys. Rev. D)
null
10.1103/PhysRevD.109.023538
null
hep-ph astro-ph.CO gr-qc hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The thermal plasma in the early universe produced a stochastic gravitational wave (GW) background, which peaks today in the microwave regime and was dubbed the cosmic gravitational microwave background (CGMB). In previous works only single graviton production processes that contribute to the CGMB have been considered...
[ { "created": "Tue, 29 Nov 2022 19:00:00 GMT", "version": "v1" }, { "created": "Fri, 9 Feb 2024 19:38:37 GMT", "version": "v2" } ]
2024-02-13
[ [ "Ghiglieri", "Jacopo", "" ], [ "Schütte-Engel", "Jan", "" ], [ "Speranza", "Enrico", "" ] ]
The thermal plasma in the early universe produced a stochastic gravitational wave (GW) background, which peaks today in the microwave regime and was dubbed the cosmic gravitational microwave background (CGMB). In previous works only single graviton production processes that contribute to the CGMB have been considered. ...
0907.2662
Elizabeth H. Simmons
Alexander S. Belyaev (Southampton U.), R. Sekhar Chivukula, Neil D. Christensen, Elizabeth H. Simmons (Michigan State U.), Hong-Jian He (Tsinghua U., Beijing), Masafumi Kurachi (LANL), and Masaharu Tanabashi (Nagoya U.)
W_L W_L Scattering in Higgsless Models: Identifying Better Effective Theories
35 pages, 11 figures. References added
Phys.Rev.D80:055022,2009
10.1103/PhysRevD.80.055022
SHEP-09-15, MSUHEP-090715, LA-UR-09-01080, NTLP 2009-01
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The three-site model has been offered as a benchmark for studying the collider phenomenology of Higgsless models. In this paper we analyze how well the three-site model performs as a general exemplar of Higgsless models in describing W_L W_L scattering, and which modifications can make it more representative. We empl...
[ { "created": "Wed, 15 Jul 2009 17:24:51 GMT", "version": "v1" }, { "created": "Tue, 21 Jul 2009 15:47:10 GMT", "version": "v2" }, { "created": "Mon, 10 Aug 2009 19:34:14 GMT", "version": "v3" } ]
2010-05-27
[ [ "Belyaev", "Alexander S.", "", "Southampton U." ], [ "Chivukula", "R. Sekhar", "", "Michigan State U." ], [ "Christensen", "Neil D.", "", "Michigan State U." ], [ "Simmons", "Elizabeth H.", "", "Michigan State U." ], [ "He", "...
The three-site model has been offered as a benchmark for studying the collider phenomenology of Higgsless models. In this paper we analyze how well the three-site model performs as a general exemplar of Higgsless models in describing W_L W_L scattering, and which modifications can make it more representative. We employ...
hep-ph/9411389
Gino Isidori
G. D'Ambrosio, G. Isidori and A. Pugliese
CP and CPT measurements at DAFNE
28 pages, latex file, 7 figures added in a separate uufile
null
null
Rome preprint 1071, CERN-TH-7504. Contribution to the 2nd. edition of the DAFNE Physics Handbook, eds. L. Maiani, G. Pancheri and N. Paver
hep-ph
null
Starting from the time evolution of the C-odd $\bar{K}^0 K^0$ system, we analyze the asymmetries measurable at DAFNE and their implications on CP violation and on the possible tests of T and CPT symmetries. In particular the ratio $\epsilon'/\epsilon$ can be measured with high precision (up to about $10^{-4}$ for the...
[ { "created": "Thu, 24 Nov 1994 17:34:13 GMT", "version": "v1" }, { "created": "Fri, 25 Nov 1994 08:40:10 GMT", "version": "v2" } ]
2008-02-03
[ [ "D'Ambrosio", "G.", "" ], [ "Isidori", "G.", "" ], [ "Pugliese", "A.", "" ] ]
Starting from the time evolution of the C-odd $\bar{K}^0 K^0$ system, we analyze the asymmetries measurable at DAFNE and their implications on CP violation and on the possible tests of T and CPT symmetries. In particular the ratio $\epsilon'/\epsilon$ can be measured with high precision (up to about $10^{-4}$ for the r...
hep-ph/0106257
Luis Bettencourt
Luis M.A. Bettencourt, Krishna Rajagopal and James V. Steele
Langevin Evolution of Disoriented Chiral Condensate
19 pages, 7 figures, uses RevTex; v2 very small change to the caption of Fig.7. Version to appear in Nucl. phys. A
Nucl.Phys. A693 (2001) 825-843
10.1016/S0375-9474(01)01242-8
MIT-CTP-3150
hep-ph hep-lat nucl-th
null
As the matter produced in a relativistic heavy ion collision cools through the QCD phase transition, the dynamical evolution of the chiral condensate will be driven out of thermal equilibrium. As a prelude to analyzing this evolution, and in particular as a prelude to learning how rapid the cooling must be in order f...
[ { "created": "Fri, 22 Jun 2001 21:50:34 GMT", "version": "v1" }, { "created": "Wed, 18 Jul 2001 18:16:28 GMT", "version": "v2" } ]
2009-11-07
[ [ "Bettencourt", "Luis M. A.", "" ], [ "Rajagopal", "Krishna", "" ], [ "Steele", "James V.", "" ] ]
As the matter produced in a relativistic heavy ion collision cools through the QCD phase transition, the dynamical evolution of the chiral condensate will be driven out of thermal equilibrium. As a prelude to analyzing this evolution, and in particular as a prelude to learning how rapid the cooling must be in order for...
hep-ph/0603083
Stefano Moretti Dr
S. Moretti, M.R. Nolten and D.A. Ross (Southampton University)
Weak corrections to gluon-induced top-antitop hadro-production
12 pages, 4 figures, LaTeX, one figure corrected, some text changes, conclusions unchanged, version to appear in PLB, Erratum added
Phys.Lett.B639:513-519,2006; Erratum-ibid.B660:607-609,2008
10.1016/j.physletb.2006.06.078 10.1016/j.physletb.2007.10.039
SHEP-06-04
hep-ph
null
We calculate purely weak virtual one-loop corrections to the production cross section of top-antitop pairs at the Large Hadron Collider via the gluon-gluon fusion subprocess. We find very small negative corrections to the total cross section, of order -0.6%, but significantly larger effects to the differential one, p...
[ { "created": "Fri, 10 Mar 2006 19:29:28 GMT", "version": "v1" }, { "created": "Fri, 30 Jun 2006 08:31:48 GMT", "version": "v2" }, { "created": "Thu, 8 Nov 2007 18:57:46 GMT", "version": "v3" } ]
2008-11-26
[ [ "Moretti", "S.", "", "Southampton University" ], [ "Nolten", "M. R.", "", "Southampton University" ], [ "Ross", "D. A.", "", "Southampton University" ] ]
We calculate purely weak virtual one-loop corrections to the production cross section of top-antitop pairs at the Large Hadron Collider via the gluon-gluon fusion subprocess. We find very small negative corrections to the total cross section, of order -0.6%, but significantly larger effects to the differential one, par...
1209.2214
YaJin Zhou
Hao Sun and Ya-Jin Zhou
Neutral Triple Gauge Boson production in the large extra dimensions model at linear colliders
17 pages,8 figures, accepted by Phys. Rev. D
null
10.1103/PhysRevD.86.075003
null
hep-ph
http://creativecommons.org/licenses/by/3.0/
We consider the neutral triple gauge boson production process in the context of large extra dimensions (LED) model including the Kaluza-Klein (KK) excited gravitons at future linear colliders, say ILC(CLIC). We consider $\gamma\gamma\gamma, \gamma\gamma Z, \gamma Z Z$ and $ZZZ$ production processes, and analyse their...
[ { "created": "Tue, 11 Sep 2012 03:42:25 GMT", "version": "v1" } ]
2015-06-11
[ [ "Sun", "Hao", "" ], [ "Zhou", "Ya-Jin", "" ] ]
We consider the neutral triple gauge boson production process in the context of large extra dimensions (LED) model including the Kaluza-Klein (KK) excited gravitons at future linear colliders, say ILC(CLIC). We consider $\gamma\gamma\gamma, \gamma\gamma Z, \gamma Z Z$ and $ZZZ$ production processes, and analyse their i...
2101.00047
Sabya Sachi Chatterjee
Francesco Capozzi, Sabya Sachi Chatterjee, and Antonio Palazzo
Neutrino mass ordering obfuscated by the NSI
Contribution to ICHEP2020, accepted for publication on PoS
null
null
null
hep-ph hep-ex hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Determination of the neutrino mass ordering (NMO) is one of the biggest priorities in the intensity frontier of high energy particle physics. To accomplish that goal a lot of efforts are being put together with the atmospheric, solar, reactor, and accelerator neutrinos. In the standard 3-flavor framework, NMO is defi...
[ { "created": "Thu, 31 Dec 2020 19:25:16 GMT", "version": "v1" } ]
2021-01-05
[ [ "Capozzi", "Francesco", "" ], [ "Chatterjee", "Sabya Sachi", "" ], [ "Palazzo", "Antonio", "" ] ]
Determination of the neutrino mass ordering (NMO) is one of the biggest priorities in the intensity frontier of high energy particle physics. To accomplish that goal a lot of efforts are being put together with the atmospheric, solar, reactor, and accelerator neutrinos. In the standard 3-flavor framework, NMO is define...
hep-ph/9912450
null
Alakabha Datta and Xinmin Zhang
Vacuum Stability Higgs Mass Bound Revisited with Implications for Extra Dimension Theories
Latex, 14 pages, 1 figure. Added references. To appear in Phys. Rev. D
Phys.Rev. D61 (2000) 074033
10.1103/PhysRevD.61.074033
UT-PT-99-18
hep-ph hep-ex
null
We take the standard model to be an effective theory including higher dimensional operators suppressed by scale $\Lambda$ and re-examine the higgs mass bounds from the requirements of vacuum stability. Our results show that the effects of the higher dimensional operators on the higgs mass limits are significant. As a...
[ { "created": "Tue, 21 Dec 1999 18:56:28 GMT", "version": "v1" }, { "created": "Sat, 8 Jan 2000 18:34:07 GMT", "version": "v2" } ]
2009-10-31
[ [ "Datta", "Alakabha", "" ], [ "Zhang", "Xinmin", "" ] ]
We take the standard model to be an effective theory including higher dimensional operators suppressed by scale $\Lambda$ and re-examine the higgs mass bounds from the requirements of vacuum stability. Our results show that the effects of the higher dimensional operators on the higgs mass limits are significant. As an ...
2304.00908
Ke-Pan Xie
Xiao-Rui Wang and Ke-Pan Xie
Freeze-in of WIMP dark matter
5 pages + 3 figures + appendix + references
null
null
null
hep-ph astro-ph.CO
http://creativecommons.org/licenses/by/4.0/
The nature of dark matter (DM) remains one of the most important unanswered questions in particle physics. Here, we propose a novel scenario for DM in which weakly interacting massive particles (WIMPs) can freeze-in due to a first-order phase transition (FOPT) in the early Universe. The FOPT dilutes the pre-existing ...
[ { "created": "Mon, 3 Apr 2023 11:55:39 GMT", "version": "v1" }, { "created": "Mon, 24 Apr 2023 13:01:02 GMT", "version": "v2" }, { "created": "Thu, 14 Sep 2023 06:13:06 GMT", "version": "v3" } ]
2023-09-15
[ [ "Wang", "Xiao-Rui", "" ], [ "Xie", "Ke-Pan", "" ] ]
The nature of dark matter (DM) remains one of the most important unanswered questions in particle physics. Here, we propose a novel scenario for DM in which weakly interacting massive particles (WIMPs) can freeze-in due to a first-order phase transition (FOPT) in the early Universe. The FOPT dilutes the pre-existing DM...
hep-ph/0007104
Roberto Casalbuoni
Roberto Casalbuoni
The impact of atomic precision measurements in high energy physics
Talk given at the XVII International Conference on Atomic Physics, ICAP 2000, Florence, June 4-9, 2000. LaTeX, p.16. A sentence and a reference have been modified
null
10.1063/1.1354353
null
hep-ph physics.atom-ph
null
In this talk I discuss the relevance of atomic physics in understanding some important questions about elementary particle physics. A particular attention is devoted to atomic parity violation measurements which seem to suggest new physics beyond the Standard Model. Atomic physics might also be relevant in discoverin...
[ { "created": "Tue, 11 Jul 2000 14:55:53 GMT", "version": "v1" }, { "created": "Fri, 14 Jul 2000 07:34:51 GMT", "version": "v2" } ]
2009-10-31
[ [ "Casalbuoni", "Roberto", "" ] ]
In this talk I discuss the relevance of atomic physics in understanding some important questions about elementary particle physics. A particular attention is devoted to atomic parity violation measurements which seem to suggest new physics beyond the Standard Model. Atomic physics might also be relevant in discovering ...
2005.07047
Kensuke Akita
Kensuke Akita, Masahide Yamaguchi
A precision calculation of relic neutrino decoupling
31 pages, 5 figures and 4 tables, accepted JCAP version
null
10.1088/1475-7516/2020/08/012
null
hep-ph astro-ph.CO
http://creativecommons.org/licenses/by/4.0/
We study the distortions of equilibrium spectra of relic neutrinos due to the interactions with electrons, positrons, and neutrinos in the early Universe. We solve the integro-differential kinetic equations for the neutrino density matrix, including three-flavor oscillations and finite temperature corrections from QE...
[ { "created": "Thu, 14 May 2020 14:56:02 GMT", "version": "v1" }, { "created": "Wed, 5 Aug 2020 15:42:22 GMT", "version": "v2" } ]
2020-08-19
[ [ "Akita", "Kensuke", "" ], [ "Yamaguchi", "Masahide", "" ] ]
We study the distortions of equilibrium spectra of relic neutrinos due to the interactions with electrons, positrons, and neutrinos in the early Universe. We solve the integro-differential kinetic equations for the neutrino density matrix, including three-flavor oscillations and finite temperature corrections from QED ...
hep-ph/0111074
Katsumi Ohwa
K. Ohwa (Tokyo Metropolitan University)
Crystalline ground state in chiral Gross-Neveu and Cooper pair models at finite densities
18 pages, REVTeX, 3 eps figures
Phys.Rev. D65 (2002) 085040
10.1103/PhysRevD.65.085040
null
hep-ph
null
We study the possibility of spatially non-uniform ground state in (1+1)-dimensional models with quartic fermi interactions at finite fermion densities by introducing chemical potential \mu. We examine the chiral Gross-Neveu model and the Cooper pair model as toy models of the chiral symmetry breaking and the difermio...
[ { "created": "Wed, 7 Nov 2001 13:44:21 GMT", "version": "v1" }, { "created": "Sat, 19 Jan 2002 07:49:56 GMT", "version": "v2" } ]
2009-11-07
[ [ "Ohwa", "K.", "", "Tokyo Metropolitan University" ] ]
We study the possibility of spatially non-uniform ground state in (1+1)-dimensional models with quartic fermi interactions at finite fermion densities by introducing chemical potential \mu. We examine the chiral Gross-Neveu model and the Cooper pair model as toy models of the chiral symmetry breaking and the difermion ...
hep-ph/0407133
Kazunori Itakura
K.Naito, S.Maedan, and K.Itakura
Light Mesons on the Light Front
34 pages, 5 figures, minor modification, to appear in Phys. Rev. D
Phys.Rev. D70 (2004) 096008
10.1103/PhysRevD.70.096008
SACLAY-T04/096
hep-ph
null
We study the properties of light mesons in the scalar, pseudo-scalar, and vector channels within the light-front quantization, by using the (one flavor) Nambu--Jona-Lasinio model with vector interaction. After taking into account the effects of chiral symmetry breaking, we derive the bound-state equation in each chan...
[ { "created": "Mon, 12 Jul 2004 12:33:14 GMT", "version": "v1" }, { "created": "Thu, 7 Oct 2004 17:24:03 GMT", "version": "v2" } ]
2009-11-10
[ [ "Naito", "K.", "" ], [ "Maedan", "S.", "" ], [ "Itakura", "K.", "" ] ]
We study the properties of light mesons in the scalar, pseudo-scalar, and vector channels within the light-front quantization, by using the (one flavor) Nambu--Jona-Lasinio model with vector interaction. After taking into account the effects of chiral symmetry breaking, we derive the bound-state equation in each channe...
2209.06047
Alexander Korchin
Sw. Banerjee, A.Yu. Korchin, Z. Was
Spin correlations in $\tau$-lepton pair production due to anomalous magnetic and electric dipole moments
17 pages, 2 figures
null
10.1103/PhysRevD.106.113010
IFJ-PAN-IV-2022-12
hep-ph
http://creativecommons.org/licenses/by/4.0/
We present a simple algorithm for the calculation of event weights embedding the effects of anomalous electric and magnetic dipole moments in simulation of $e^-e^+\to \tau^-\tau^+ (n\gamma)$ events, and the subsequent decay of the $\tau$ leptons produced. The impact of these weights on the spin-correlation matrix and...
[ { "created": "Tue, 13 Sep 2022 14:55:58 GMT", "version": "v1" } ]
2023-01-11
[ [ "Banerjee", "Sw.", "" ], [ "Korchin", "A. Yu.", "" ], [ "Was", "Z.", "" ] ]
We present a simple algorithm for the calculation of event weights embedding the effects of anomalous electric and magnetic dipole moments in simulation of $e^-e^+\to \tau^-\tau^+ (n\gamma)$ events, and the subsequent decay of the $\tau$ leptons produced. The impact of these weights on the spin-correlation matrix and t...
hep-ph/9209291
null
Howard Georgi
$D$-$\bar D$ Mixing in Heavy Quark Effective Field Theory
10 pages (big mode), #HUTP-92/A049
Phys.Lett.B297:353-357,1992
10.1016/0370-2693(92)91274-D
null
hep-ph
null
I analyze $D$-$\ol D$ mixing using the techniques of heavy quark effect field theory. The analysis suggests that the there may be important cancellations among the dispersive effects of different kinds of final states, so that the total mixing may be considerably smaller than previous estimates.
[ { "created": "Tue, 29 Sep 1992 22:30:03 GMT", "version": "v1" } ]
2009-09-11
[ [ "Georgi", "Howard", "" ] ]
I analyze $D$-$\ol D$ mixing using the techniques of heavy quark effect field theory. The analysis suggests that the there may be important cancellations among the dispersive effects of different kinds of final states, so that the total mixing may be considerably smaller than previous estimates.
2311.04751
Xu-Dong Huang
Xu-Dong Huang, Bin Gong, Rui-Chang Niu, Huai-Min Yu, Jian-Xiong Wang
Next-to-next-to-leading-order QCD corrections to double $J/\psi$ production at the $B$ factories
15 pages, 3 figures, matches published version
JHEP 02 (2024) 055
10.1007/JHEP02(2024)055
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper, we study the next-to-next-to-leading-order (NNLO) QCD corrections for the process $e^+e^- \to J/\psi+J/\psi$ at the $B$ factories. By including the NNLO corrections, the cross section turns negative due to the poor convergence of perturbative expansion. Consequently, to obtain a reasonable estimation f...
[ { "created": "Wed, 8 Nov 2023 15:21:23 GMT", "version": "v1" }, { "created": "Mon, 12 Feb 2024 03:27:34 GMT", "version": "v2" } ]
2024-02-13
[ [ "Huang", "Xu-Dong", "" ], [ "Gong", "Bin", "" ], [ "Niu", "Rui-Chang", "" ], [ "Yu", "Huai-Min", "" ], [ "Wang", "Jian-Xiong", "" ] ]
In this paper, we study the next-to-next-to-leading-order (NNLO) QCD corrections for the process $e^+e^- \to J/\psi+J/\psi$ at the $B$ factories. By including the NNLO corrections, the cross section turns negative due to the poor convergence of perturbative expansion. Consequently, to obtain a reasonable estimation for...
0706.2276
Sebastian Sapeta
S. Sapeta
Heavy Flavor Production in DGLAP improved Saturation Model
4 pages, 3 figures; Talk presented at the International Workshop on Deep-Inelastic Scattering and Related Subjects, Munich, Germany, April 16-20, 2007
null
null
CERN-PH-TH/2007-101
hep-ph
null
The saturation model with DGLAP evolution is shown to give good description of the production of the charm and beauty quarks in deep inelastic scattering. The modifications of saturation properties caused by the presence of heavy quarks are also discussed.
[ { "created": "Fri, 15 Jun 2007 11:51:29 GMT", "version": "v1" } ]
2007-06-18
[ [ "Sapeta", "S.", "" ] ]
The saturation model with DGLAP evolution is shown to give good description of the production of the charm and beauty quarks in deep inelastic scattering. The modifications of saturation properties caused by the presence of heavy quarks are also discussed.
1911.10956
Dmitry Borisyuk
Dmitry Borisyuk, Alexander Kobushkin
Two photon exchange in elastic electron scattering off hadronic systems
28 pages, 12 figures
Ukr.J.Phys. 66, No. 1, 3 (2021)
10.15407/ujpe66.1.3
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the present review we discuss different aspects of the two-photon exchange (TPE) physics in elastic $ep$ scattering, at high $Q^2$ as well as at low $Q^2$. The imaginary part of the TPE amplitude gives rise to beam and target single-spin asymmetries. Different theoretical approaches to calculation of these observa...
[ { "created": "Mon, 25 Nov 2019 14:57:10 GMT", "version": "v1" } ]
2021-03-29
[ [ "Borisyuk", "Dmitry", "" ], [ "Kobushkin", "Alexander", "" ] ]
In the present review we discuss different aspects of the two-photon exchange (TPE) physics in elastic $ep$ scattering, at high $Q^2$ as well as at low $Q^2$. The imaginary part of the TPE amplitude gives rise to beam and target single-spin asymmetries. Different theoretical approaches to calculation of these observabl...
1110.3805
Michael E. Peskin
Michael E. Peskin
Summary of Lepton Photon 2011
56 pages, 37 figures; v2: minor corrections to references
null
10.1007/s12043-012-0424-0
SLAC-PUB-14612
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this lecture, I summarize developments presented at the Lepton Photon 2011 conference and give my perspective on the current situation in high-energy physics.
[ { "created": "Mon, 17 Oct 2011 20:13:40 GMT", "version": "v1" }, { "created": "Tue, 1 Nov 2011 19:18:44 GMT", "version": "v2" } ]
2015-05-30
[ [ "Peskin", "Michael E.", "" ] ]
In this lecture, I summarize developments presented at the Lepton Photon 2011 conference and give my perspective on the current situation in high-energy physics.
1705.00929
Paride Paradisi
Ferruccio Feruglio, Paride Paradisi, Andrea Pattori
On the Importance of Electroweak Corrections for B Anomalies
38 pages, 7 figures. V2: Text improvments. Published version
null
10.1007/JHEP09(2017)061
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The growing experimental indication of Lepton Flavour Universality Violation (LFUV) both in charged- and neutral-current semileptonic B-decays, has triggered many theoretical interpretations of such non-standard phenomena. Focusing on popular scenarios where the explanation of these anomalies requires New Physics at ...
[ { "created": "Tue, 2 May 2017 12:02:18 GMT", "version": "v1" }, { "created": "Thu, 23 Nov 2017 13:20:39 GMT", "version": "v2" } ]
2017-11-27
[ [ "Feruglio", "Ferruccio", "" ], [ "Paradisi", "Paride", "" ], [ "Pattori", "Andrea", "" ] ]
The growing experimental indication of Lepton Flavour Universality Violation (LFUV) both in charged- and neutral-current semileptonic B-decays, has triggered many theoretical interpretations of such non-standard phenomena. Focusing on popular scenarios where the explanation of these anomalies requires New Physics at th...
hep-ph/0703065
Gabor Papp
Gabor Papp, Peter Levai, George Fai
Intrinsic transverse momentum in di-hadron correlations
6 pages, 4 figures, QM2006 proceeding
null
null
null
hep-ph
null
We study di-hadron correlations in proton-proton collisions at $\sqrt{s} = 200$ GeV and interpret experimental data in terms of a fragmentation width and a momentum imbalance. A fragmentation width of $580 \pm 50$ GeV/c is obtained, and the measured momentum imbalance gives an `intrinsic' transverse momentum width of...
[ { "created": "Tue, 6 Mar 2007 09:45:25 GMT", "version": "v1" } ]
2007-05-23
[ [ "Papp", "Gabor", "" ], [ "Levai", "Peter", "" ], [ "Fai", "George", "" ] ]
We study di-hadron correlations in proton-proton collisions at $\sqrt{s} = 200$ GeV and interpret experimental data in terms of a fragmentation width and a momentum imbalance. A fragmentation width of $580 \pm 50$ GeV/c is obtained, and the measured momentum imbalance gives an `intrinsic' transverse momentum width of p...