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1704.08168
Shuai Zhao
Wei Wang and Shuai Zhao
Implications of the $R_K$ and $R_{K^*}$ anomalies
19 pages, 3 figures, 3 tables. To appear in Chinese Physics C
Chinese Physics C, 42 (2018) 013105
10.1088/1674-1137/42/1/013105
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss the implications of the recently reported $R_K$ and $R_{K^*}$ anomalies, the lepton flavor non-universality in the $B\to K\ell^+\ell^-$ and $B\to K^*\ell^+\ell^-$. Using two sets of hadronic inputs of form factors, we perform a fit of the new physics to the $R_K$ and $R_{K^*}$ data, and significant new phy...
[ { "created": "Wed, 26 Apr 2017 15:45:10 GMT", "version": "v1" }, { "created": "Wed, 8 Nov 2017 12:18:25 GMT", "version": "v2" } ]
2017-12-08
[ [ "Wang", "Wei", "" ], [ "Zhao", "Shuai", "" ] ]
We discuss the implications of the recently reported $R_K$ and $R_{K^*}$ anomalies, the lepton flavor non-universality in the $B\to K\ell^+\ell^-$ and $B\to K^*\ell^+\ell^-$. Using two sets of hadronic inputs of form factors, we perform a fit of the new physics to the $R_K$ and $R_{K^*}$ data, and significant new physi...
0812.2832
Sheldon Stone
Sheldon Stone and Liming Zhang
S-waves and the Measurement of CP Violating Phases in Bs Decays
To be published in Physical Review D; 7 pages, 5 figures, v2-3 fixed typo's; response to reviewers
Phys.Rev.D79:074024,2009
10.1103/PhysRevD.79.074024
SU-HEP-010
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Heavy, as yet undiscovered particles, can affect measurements of CP violation in the B system. Measuring CP violation in the Bs system provides an excellent place to observe such effects since Standard Model sources are predicted to produce very small effects. The angle -2beta_s, the "phase of Bs-\bar{B}s mixing," th...
[ { "created": "Mon, 15 Dec 2008 15:15:53 GMT", "version": "v1" }, { "created": "Thu, 18 Dec 2008 12:59:08 GMT", "version": "v2" }, { "created": "Sun, 21 Dec 2008 11:13:52 GMT", "version": "v3" }, { "created": "Wed, 1 Apr 2009 18:43:21 GMT", "version": "v4" } ]
2014-11-18
[ [ "Stone", "Sheldon", "" ], [ "Zhang", "Liming", "" ] ]
Heavy, as yet undiscovered particles, can affect measurements of CP violation in the B system. Measuring CP violation in the Bs system provides an excellent place to observe such effects since Standard Model sources are predicted to produce very small effects. The angle -2beta_s, the "phase of Bs-\bar{B}s mixing," thou...
1603.08292
Grigorios Chachamis
F. Caporale, G. Chachamis, B. Murdaca, A. Sabio Vera
Inclusive three jet production at the LHC as a new BFKL probe
5 pages, 1 figure. To appear in the proeceedings of MPI@LHC 2015, Trieste, Italy, 23-27 November 2015
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We discuss recently proposed observables, sensitive to BFKL dynamics, in the context of multijet production at the large hadron collider (LHC). In particular, we consider ratios of azimuthal angle differences in final states with three jets, well separated in rapidity from each other, with two of them being very forw...
[ { "created": "Mon, 28 Mar 2016 03:35:24 GMT", "version": "v1" } ]
2016-03-29
[ [ "Caporale", "F.", "" ], [ "Chachamis", "G.", "" ], [ "Murdaca", "B.", "" ], [ "Vera", "A. Sabio", "" ] ]
We discuss recently proposed observables, sensitive to BFKL dynamics, in the context of multijet production at the large hadron collider (LHC). In particular, we consider ratios of azimuthal angle differences in final states with three jets, well separated in rapidity from each other, with two of them being very forwar...
hep-ph/0407270
Hilmar Forkel
Hilmar Forkel
QCD Vacuum Topology and Glueballs
3 pages, no figures
null
10.1063/1.1843614
null
hep-ph
null
We outline a comprehensive study of spin-0 glueball properties which, in particular, keeps track of the topological gluon structure. Specifically, we implement (semi-hard) topological instanton physics as well as topological charge screening in the QCD vacuum into the operator product expansion (OPE) of the glueball ...
[ { "created": "Thu, 22 Jul 2004 22:05:55 GMT", "version": "v1" } ]
2009-11-10
[ [ "Forkel", "Hilmar", "" ] ]
We outline a comprehensive study of spin-0 glueball properties which, in particular, keeps track of the topological gluon structure. Specifically, we implement (semi-hard) topological instanton physics as well as topological charge screening in the QCD vacuum into the operator product expansion (OPE) of the glueball co...
1106.5607
Petr Zavada
Petr Zavada
Kinematics of deep inelastic scattering in leading order of the covariant approach
4 pages, 2 figures, the version 2 is accepted to Phys.Rev.D
null
10.1103/PhysRevD.85.039906
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the kinematics of deep inelastic scattering corresponding to the rotationally symmetric distribution of quark momenta in the nucleon rest frame. It is shown that rotational symmetry together with Lorentz invariance can in leading order impose constraints on the quark intrinsic momenta. Obtained constraints a...
[ { "created": "Tue, 28 Jun 2011 09:43:21 GMT", "version": "v1" }, { "created": "Sun, 1 Jan 2012 19:57:16 GMT", "version": "v2" } ]
2015-05-28
[ [ "Zavada", "Petr", "" ] ]
We study the kinematics of deep inelastic scattering corresponding to the rotationally symmetric distribution of quark momenta in the nucleon rest frame. It is shown that rotational symmetry together with Lorentz invariance can in leading order impose constraints on the quark intrinsic momenta. Obtained constraints are...
1511.06846
Noriyuki Oshimo
Noriyuki Oshimo
Higgs bosons in supersymmetric model with CP-violating potential
18 pages, 8 figures
Phys. Rev. D 93, 095017 (2016)
10.1103/PhysRevD.93.095017
OCHA-PP-337
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In the supersymmetric standard model which is not minimal, the Higgs potential does not conserve CP symmetry generally. Assuming that there exists an SU(2)-triplet Higgs field, we discuss resultant CP-violating effects on the Higgs bosons. The experimentally observed Higgs boson, which should be CP-even in the standa...
[ { "created": "Sat, 21 Nov 2015 06:40:47 GMT", "version": "v1" } ]
2016-06-01
[ [ "Oshimo", "Noriyuki", "" ] ]
In the supersymmetric standard model which is not minimal, the Higgs potential does not conserve CP symmetry generally. Assuming that there exists an SU(2)-triplet Higgs field, we discuss resultant CP-violating effects on the Higgs bosons. The experimentally observed Higgs boson, which should be CP-even in the standard...
hep-ph/0012101
Martti Raidal
Ernest Ma, Martti Raidal and Utpal Sarkar
Phenomenology of the Neutrino-Mass-Giving Higgs Triplet and the Low-Energy Seesaw Violation of Lepton Number
Minor changes in the text, results unchanged
Nucl.Phys. B615 (2001) 313-330
10.1016/S0550-3213(01)00416-3
UCRHEP-T295
hep-ph
null
Small realistic Majorana neutrino masses can be generated via a Higgs triplet $(\xi^{++}, \xi^+, \xi^0)$ without having energy scales larger than $M_*={\cal O}(1)$ TeV in the theory. The large effective mass scale $\Lambda$ in the well-known seesaw neutrino-mass operator $\Lambda^{-1} (LL\Phi\Phi)$ is naturally obtai...
[ { "created": "Sat, 9 Dec 2000 00:05:13 GMT", "version": "v1" }, { "created": "Mon, 18 Dec 2000 19:09:26 GMT", "version": "v2" }, { "created": "Thu, 12 Jul 2001 07:27:04 GMT", "version": "v3" } ]
2009-10-31
[ [ "Ma", "Ernest", "" ], [ "Raidal", "Martti", "" ], [ "Sarkar", "Utpal", "" ] ]
Small realistic Majorana neutrino masses can be generated via a Higgs triplet $(\xi^{++}, \xi^+, \xi^0)$ without having energy scales larger than $M_*={\cal O}(1)$ TeV in the theory. The large effective mass scale $\Lambda$ in the well-known seesaw neutrino-mass operator $\Lambda^{-1} (LL\Phi\Phi)$ is naturally obtaine...
2404.03945
Agnieszka Dziurda
Agnieszka Dziurda, Felix Erben, Marc Quentin F\"uhring, Thibaud Humair, Thomas Latham, Eleftheria Malami, Pascal Reeck, Vladyslav Shtabovenko, Melissa Cruz Torres, Yuma Uematsu, K. Keri Vos
Summary of Working Group 4: Mixing and mixing-related $CP$ violation in the B system: $\Delta m$, $\Delta \Gamma$, $\phi_s$, $\phi_1/\alpha$, $\phi_2/\beta$, $\phi_3/\gamma$
Presented at the 12th Workshop on the CKM Unitarity Triangle, 18-22 September 2023, Santiago de Compostela
null
null
P3H-24-017, TTP24-006, CERN-TH-2024-043
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
This summary reviews contributions to the CKM 2023 workshop in Working Group 4: mixing and mixing-related $CP$ violation in B system. The theoretical and experimental progress is discussed.
[ { "created": "Fri, 5 Apr 2024 08:18:44 GMT", "version": "v1" } ]
2024-04-08
[ [ "Dziurda", "Agnieszka", "" ], [ "Erben", "Felix", "" ], [ "Führing", "Marc Quentin", "" ], [ "Humair", "Thibaud", "" ], [ "Latham", "Thomas", "" ], [ "Malami", "Eleftheria", "" ], [ "Reeck", "Pascal", "" ...
This summary reviews contributions to the CKM 2023 workshop in Working Group 4: mixing and mixing-related $CP$ violation in B system. The theoretical and experimental progress is discussed.
1110.1850
Bo-Qiang Ma
Zhou Lingli, Bo-Qiang Ma
Lorentz Violation of the Photon Sector in Field Theory Models
9 pages, no figure, three tables. Final version for journal publication
Adv. High Energ. Phys. 2014 (2014) 374572
10.1155/2014/374572
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We compare the Lorentz violation terms of the pure photon sector between two field theory models, namely the minimal standard model extension (SME) and the standard model supplement (SMS). From the requirement of the identity of the intersection for the two models, we find that the free photon sector of the SMS can b...
[ { "created": "Sun, 9 Oct 2011 15:45:14 GMT", "version": "v1" }, { "created": "Tue, 17 Jan 2012 13:28:16 GMT", "version": "v2" }, { "created": "Fri, 15 Aug 2014 15:44:42 GMT", "version": "v3" } ]
2014-08-27
[ [ "Lingli", "Zhou", "" ], [ "Ma", "Bo-Qiang", "" ] ]
We compare the Lorentz violation terms of the pure photon sector between two field theory models, namely the minimal standard model extension (SME) and the standard model supplement (SMS). From the requirement of the identity of the intersection for the two models, we find that the free photon sector of the SMS can be ...
1007.1633
Rabindra N. Mohapatra
Rabindra N. Mohapatra
Neutrino mass and grand unification of flavor
Invited plenary talk at the symposium honoring Prof. Murray Gell-Mann on his 80th Birthday; Nanyang techinical University, Singapore, February, 2010; 15 pages, no figures
Int.J.Mod.Phys.A25:4311-4323,2010
10.1142/S0217751X10050688
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The problem of understanding quark mass and mixing hierarchies has been an outstanding problem of particle physics for a long time. The discovery of neutrino masses in the past decade, exhibiting mixing and mass patterns so very different from the quark sector has added an extra dimension to this puzzle. This is spec...
[ { "created": "Fri, 9 Jul 2010 17:33:45 GMT", "version": "v1" } ]
2014-11-21
[ [ "Mohapatra", "Rabindra N.", "" ] ]
The problem of understanding quark mass and mixing hierarchies has been an outstanding problem of particle physics for a long time. The discovery of neutrino masses in the past decade, exhibiting mixing and mass patterns so very different from the quark sector has added an extra dimension to this puzzle. This is specia...
1511.07351
Cesar Bonilla
Cesar Bonilla, Jorge C. Rom\~ao, Jos\'e W.F. Valle
Electroweak breaking and neutrino mass: "invisible" Higgs decays at the LHC (Type II seesaw)
30 pages, 12 figures; Some references added. Matches NJP published version
New J.Phys. 18 (2016) no.3, 033033
10.1088/1367-2630/18/3/033033
CFTP-15-013, IFIC-15-XX
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Neutrino mass generation through the Higgs mechanism not only suggests the need to reconsider the physics of electroweak symmetry breaking from a new perspective, but also provides a new theoretically consistent and experimentally viable paradigm. We illustrate this by describing the main features of the electroweak ...
[ { "created": "Mon, 23 Nov 2015 18:21:12 GMT", "version": "v1" }, { "created": "Tue, 5 Apr 2016 14:34:35 GMT", "version": "v2" } ]
2016-04-06
[ [ "Bonilla", "Cesar", "" ], [ "Romão", "Jorge C.", "" ], [ "Valle", "José W. F.", "" ] ]
Neutrino mass generation through the Higgs mechanism not only suggests the need to reconsider the physics of electroweak symmetry breaking from a new perspective, but also provides a new theoretically consistent and experimentally viable paradigm. We illustrate this by describing the main features of the electroweak sy...
1602.08265
Daisuke Satow
Philipp Gubler, Daisuke Satow
Exact vector channel sum rules at finite temperature and their applications to lattice QCD data analysis
7 pages, 3 figures; v2: Fig. 4 is added, several details of formalism in Sec. II are added, explanation of lattice analysis in Sec. III is extended; v3 (published version in PRD): typo fixed, discussion in Sec. III extended
Phys. Rev. D 94, 094042 (2016)
10.1103/PhysRevD.94.094042
null
hep-ph hep-lat
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We derive three exact sum rules for the spectral function of the electromagnetic current with zero spatial momentum at finite temperature. Two of them are derived in this paper for the first time. We explicitly check that these sum rules are satisfied in the weak coupling regime and examine which sum rule is sensitiv...
[ { "created": "Fri, 26 Feb 2016 10:16:50 GMT", "version": "v1" }, { "created": "Thu, 18 Aug 2016 15:17:30 GMT", "version": "v2" }, { "created": "Thu, 24 Nov 2016 13:34:49 GMT", "version": "v3" } ]
2016-11-30
[ [ "Gubler", "Philipp", "" ], [ "Satow", "Daisuke", "" ] ]
We derive three exact sum rules for the spectral function of the electromagnetic current with zero spatial momentum at finite temperature. Two of them are derived in this paper for the first time. We explicitly check that these sum rules are satisfied in the weak coupling regime and examine which sum rule is sensitive ...
2401.00596
Lipei Du
Lipei Du
Bulk medium properties of heavy-ion collisions from the beam energy scan with a multistage hydrodynamic model
v1: 15 pages, 12 figures; v2: figs. 2 and 4 slightly adjusted; v3: Title slightly changed. A few short discussions were added, but there are no changes to the results or conclusions. Published in PRC
Phys. Rev. C 110, 014904 (2024)
10.1103/PhysRevC.110.014904
null
hep-ph hep-ex nucl-ex nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We introduce a method to reconstruct full rapidity distributions of charged particle multiplicity and net proton yields, crucial for constraining the longitudinal dynamics of nuclear matter created in the beam energy scan program. Employing rapidity distributions within a multistage hydrodynamic model calibrated for ...
[ { "created": "Sun, 31 Dec 2023 22:22:44 GMT", "version": "v1" }, { "created": "Thu, 4 Jan 2024 18:49:25 GMT", "version": "v2" }, { "created": "Mon, 8 Jul 2024 16:37:17 GMT", "version": "v3" } ]
2024-07-09
[ [ "Du", "Lipei", "" ] ]
We introduce a method to reconstruct full rapidity distributions of charged particle multiplicity and net proton yields, crucial for constraining the longitudinal dynamics of nuclear matter created in the beam energy scan program. Employing rapidity distributions within a multistage hydrodynamic model calibrated for Au...
1412.2955
Namit Mahajan
Girish Kumar and Namit Mahajan
$B\rightarrow K^{*}l^+ l^-$: Zeroes of angular observables as test of standard model
7 pages, 1 pdf figure
Phys. Rev. D 93, 054041 (2016)
10.1103/PhysRevD.93.054041
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We calculate the zeroes of angular observables $P_4^{'}$ and $P_5^{'}$ of 4 - body angular distribution of $B\rightarrow K^{*} (\rightarrow K \pi) l^+ l^-$ where LHCb, in its analysis of form factor independent angular observables, has found deviations from standard model predictions in one of the $q^2$ bins. In the ...
[ { "created": "Tue, 9 Dec 2014 13:41:12 GMT", "version": "v1" } ]
2016-04-06
[ [ "Kumar", "Girish", "" ], [ "Mahajan", "Namit", "" ] ]
We calculate the zeroes of angular observables $P_4^{'}$ and $P_5^{'}$ of 4 - body angular distribution of $B\rightarrow K^{*} (\rightarrow K \pi) l^+ l^-$ where LHCb, in its analysis of form factor independent angular observables, has found deviations from standard model predictions in one of the $q^2$ bins. In the la...
hep-ph/0012198
Lynne H. Orr
Lynne H. Orr (Rochester) and W.J. Stirling (Durham)
Recent Results on BFKL Physics
5 pages including 3 figures, Latex, uses epsfig,ws-p10x7.cls; talk presented at the XXXth International Conference on High Energy Physics, Osaka, Japan, July 27 -- August 2, 2000
null
null
UR-1612
hep-ph
null
Virtual photon scattering in $e^+e^-$ collisions can result in events with the electron-positron pair produced at large rapidity separation in association with hadrons. The BFKL equation resums large logarithms that dominate the cross section for this process. After a brief overview of analytic BFKL resummation and i...
[ { "created": "Fri, 15 Dec 2000 19:10:48 GMT", "version": "v1" } ]
2007-05-23
[ [ "Orr", "Lynne H.", "", "Rochester" ], [ "Stirling", "W. J.", "", "Durham" ] ]
Virtual photon scattering in $e^+e^-$ collisions can result in events with the electron-positron pair produced at large rapidity separation in association with hadrons. The BFKL equation resums large logarithms that dominate the cross section for this process. After a brief overview of analytic BFKL resummation and its...
hep-ph/9207210
null
W. R. Greenberg and G. A. Miller
Multiple-Scattering Series For Color Transparency
26 pages, U.Wa. preprint 40427-23-N92
Phys.Rev.D47:1865-1878,1993
10.1103/PhysRevD.47.1865
null
hep-ph
null
Color transparency CT depends on the formation of a wavepacket of small spatial extent. It is useful to interpret experimental searches for CT with a multiple scattering scattering series based on wavepacket-nucleon scattering instead of the standard one using nucleon-nucleon scattering. We develop several new techni...
[ { "created": "Fri, 3 Jul 1992 15:15:19 GMT", "version": "v1" } ]
2008-11-26
[ [ "Greenberg", "W. R.", "" ], [ "Miller", "G. A.", "" ] ]
Color transparency CT depends on the formation of a wavepacket of small spatial extent. It is useful to interpret experimental searches for CT with a multiple scattering scattering series based on wavepacket-nucleon scattering instead of the standard one using nucleon-nucleon scattering. We develop several new techniqu...
1710.06810
Daniel Schwartl\"ander
Anna Kulesza, Leszek Motyka, Daniel Schwartl\"ander, Tomasz Stebel, Vincent Theeuwes
Soft gluon resummation for the associated production of a top quark pair with a W boson at the LHC
6 pages, 4 figures, 1 table, proceedings prepared for the European Physical Society Conference on High Energy Physics (EPS-HEP 2017), 5-12 July 2017, Venice, Italy
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present our results on soft gluon resummation in the invariant mass threshold applied to the associated production of a top quark pair with a W boson at the LHC in the Mellin space formalism.
[ { "created": "Wed, 18 Oct 2017 16:11:35 GMT", "version": "v1" } ]
2017-10-19
[ [ "Kulesza", "Anna", "" ], [ "Motyka", "Leszek", "" ], [ "Schwartländer", "Daniel", "" ], [ "Stebel", "Tomasz", "" ], [ "Theeuwes", "Vincent", "" ] ]
We present our results on soft gluon resummation in the invariant mass threshold applied to the associated production of a top quark pair with a W boson at the LHC in the Mellin space formalism.
hep-ph/0501211
Atsushi Watanabe
Nobuhiro Uekusa, Atsushi Watanabe, Koichi Yoshioka
Asymmetry and Minimality of Quark Mass Matrices
25 pages
Phys.Rev. D71 (2005) 094024
10.1103/PhysRevD.71.094024
KYUSHU-HET-78
hep-ph
null
We systematically investigate general forms of mass matrices for three-generation up and down quarks, including asymmetrical ones in generation space. Viable zero matrix elements are explored which are compatible with the current observation of masses and mixing angles, and also with the recent measurement of CP viol...
[ { "created": "Mon, 24 Jan 2005 08:00:33 GMT", "version": "v1" }, { "created": "Thu, 5 May 2005 11:02:03 GMT", "version": "v2" } ]
2009-11-11
[ [ "Uekusa", "Nobuhiro", "" ], [ "Watanabe", "Atsushi", "" ], [ "Yoshioka", "Koichi", "" ] ]
We systematically investigate general forms of mass matrices for three-generation up and down quarks, including asymmetrical ones in generation space. Viable zero matrix elements are explored which are compatible with the current observation of masses and mixing angles, and also with the recent measurement of CP violat...
1705.02368
Richard F. Lebed
Irinel Caprini, Benjamin Grinstein, and Richard F. Lebed
Model-independent constraints on hadronic form factors with above-threshold poles
9 pages, 1 pdf figure. Illustrative numerical results included. Version accepted for publication in Phys. Rev. D
Phys. Rev. D 96, 036015 (2017)
10.1103/PhysRevD.96.036015
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Model-independent constraints on hadronic form factors, in particular those describing exclusive semileptonic decays, can be derived from the knowledge of field correlators calculated in perturbative QCD, using analyticity and unitarity. The location of poles corresponding to below-threshold resonances, i.e., stable ...
[ { "created": "Fri, 5 May 2017 19:06:23 GMT", "version": "v1" }, { "created": "Sat, 12 Aug 2017 21:03:16 GMT", "version": "v2" } ]
2017-09-06
[ [ "Caprini", "Irinel", "" ], [ "Grinstein", "Benjamin", "" ], [ "Lebed", "Richard F.", "" ] ]
Model-independent constraints on hadronic form factors, in particular those describing exclusive semileptonic decays, can be derived from the knowledge of field correlators calculated in perturbative QCD, using analyticity and unitarity. The location of poles corresponding to below-threshold resonances, i.e., stable st...
hep-ph/9903278
Ram Brustein
Ram Brustein, Merav Hadad
Dark Matter in Models of String Cosmology
13 pages LaTeX, uses aipproc.sty, talk presented by R. Brustein at COSMO 98, Asilomar, California, November 1998
null
10.1063/1.59418
null
hep-ph astro-ph
null
The origin of dark matter in the universe may be weakly interacting scalar particles produced by amplification of quantum fluctuations during a period of dilaton-driven inflation. We present two interesting cases, the case of small fluctuations, and the resulting nonthermal spectrum, and the case of large fluctuation...
[ { "created": "Sun, 7 Mar 1999 06:53:58 GMT", "version": "v1" } ]
2009-10-31
[ [ "Brustein", "Ram", "" ], [ "Hadad", "Merav", "" ] ]
The origin of dark matter in the universe may be weakly interacting scalar particles produced by amplification of quantum fluctuations during a period of dilaton-driven inflation. We present two interesting cases, the case of small fluctuations, and the resulting nonthermal spectrum, and the case of large fluctuations ...
2201.04075
Simon Badger
Simon Badger, Heribertus Bayu Hartanto, Jakub Kry\'s, Simone Zoia
Two-loop leading colour helicity amplitudes for $W^\pm\gamma+j$ production at the LHC
35 pages, ancillary files with analytic expressions
null
10.1007/JHEP05(2022)035
CAVENDISH-HEP-22/01
hep-ph hep-th
http://creativecommons.org/licenses/by/4.0/
We present the two-loop leading colour QCD helicity amplitudes for the process $pp\to W(\to l\nu)\gamma+j$. We implement a complete reduction of the amplitudes, including the leptonic decay of the $W$-boson, using finite field arithmetic, and extract the analytic finite remainders using a recently identified basis of...
[ { "created": "Tue, 11 Jan 2022 17:12:32 GMT", "version": "v1" } ]
2022-05-25
[ [ "Badger", "Simon", "" ], [ "Hartanto", "Heribertus Bayu", "" ], [ "Kryś", "Jakub", "" ], [ "Zoia", "Simone", "" ] ]
We present the two-loop leading colour QCD helicity amplitudes for the process $pp\to W(\to l\nu)\gamma+j$. We implement a complete reduction of the amplitudes, including the leptonic decay of the $W$-boson, using finite field arithmetic, and extract the analytic finite remainders using a recently identified basis of s...
1103.1338
K. S. Babu
K.S. Babu
Radiative Generation of Neutrino Masses and its Experimental Signals
Based on talk presented at ICHEP 2010, Paris, To be published in PoS ICHEP 2010, 4 pages LaTeX
null
null
OSU-HEP-11-2
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Tiny neutrino masses can arise naturally via loop diagrams. After a brief review of the radiative mass generation mechanism, I present a new model wherein TeV scale leptoquark scalars induce neutrino masses via two--loop diagrams. This model predicts the neutrino oscillation parameter \sin^2\theta_{13} to be close to...
[ { "created": "Mon, 7 Mar 2011 19:13:22 GMT", "version": "v1" } ]
2015-03-19
[ [ "Babu", "K. S.", "" ] ]
Tiny neutrino masses can arise naturally via loop diagrams. After a brief review of the radiative mass generation mechanism, I present a new model wherein TeV scale leptoquark scalars induce neutrino masses via two--loop diagrams. This model predicts the neutrino oscillation parameter \sin^2\theta_{13} to be close to t...
2302.08281
Wrishik Naskar
Anisha, Oliver Atkinson, Akanksha Bhardwaj, Christoph Englert, Wrishik Naskar, Panagiotis Stylianou
On the BSM reach of four top production at the LHC
21 pages, 9 figures
null
10.1103/PhysRevD.108.035001
DESY-23-025
hep-ph hep-ex
http://creativecommons.org/licenses/by/4.0/
Many scenarios of beyond the Standard Model (BSM) physics give rise to new top-philic interactions that can be probed at proton machines such as the Large Hadron Collider through a variety of production and decay modes. On the one hand, this will enable a detailed determination of the BSM model's parameters when a di...
[ { "created": "Thu, 16 Feb 2023 13:23:01 GMT", "version": "v1" } ]
2023-08-16
[ [ "Anisha", "", "" ], [ "Atkinson", "Oliver", "" ], [ "Bhardwaj", "Akanksha", "" ], [ "Englert", "Christoph", "" ], [ "Naskar", "Wrishik", "" ], [ "Stylianou", "Panagiotis", "" ] ]
Many scenarios of beyond the Standard Model (BSM) physics give rise to new top-philic interactions that can be probed at proton machines such as the Large Hadron Collider through a variety of production and decay modes. On the one hand, this will enable a detailed determination of the BSM model's parameters when a disc...
2302.09740
Zolt\'an Varga
Zolt\'an Varga, Anett Mis\'ak, R\'obert V\'ertesi
Event-activity dependent production of strange and non-strange charmed baryons in the enhanced color-reconnection scheme
null
J. Phys. G: Nucl. Part. Phys. 50 (2023) 075002
10.1088/1361-6471/accfb4
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We investigated the production of charmed baryons with different isospin and strangeness content, compared to both charmed $D^0$ mesons and to the $\Lambda_c^+$ baryon in proton--proton collisions at LHC energies. We used the PYTHIA 8 Monte Carlo event generator with color-reconnection beyond leading color approximat...
[ { "created": "Mon, 20 Feb 2023 03:42:45 GMT", "version": "v1" } ]
2023-06-06
[ [ "Varga", "Zoltán", "" ], [ "Misák", "Anett", "" ], [ "Vértesi", "Róbert", "" ] ]
We investigated the production of charmed baryons with different isospin and strangeness content, compared to both charmed $D^0$ mesons and to the $\Lambda_c^+$ baryon in proton--proton collisions at LHC energies. We used the PYTHIA 8 Monte Carlo event generator with color-reconnection beyond leading color approximatio...
1810.08738
Zhenjun Xiao
Jun Hua, Ya-Lan Zhang and Zhen-Jun Xiao
The next-to-leading order corrections to $B \to \rho$ transition in the $k_T$ factorization
22 pages, 7 figures
Phys. Rev. D 99, 016007 (2019)
10.1103/PhysRevD.99.016007
null
hep-ph hep-ex
http://creativecommons.org/publicdomain/zero/1.0/
In this paper, we investigate the factorization hypothesis step by step for the exclusive process $B \to \rho$ at next-to-leading order (NLO) with the collinear factorization approach, and then we extend our results to the $k_T$ factorization frame. We show that the soft divergence from the specific NLO diagrams will...
[ { "created": "Sat, 20 Oct 2018 02:49:55 GMT", "version": "v1" }, { "created": "Mon, 29 Oct 2018 01:19:17 GMT", "version": "v2" } ]
2019-01-16
[ [ "Hua", "Jun", "" ], [ "Zhang", "Ya-Lan", "" ], [ "Xiao", "Zhen-Jun", "" ] ]
In this paper, we investigate the factorization hypothesis step by step for the exclusive process $B \to \rho$ at next-to-leading order (NLO) with the collinear factorization approach, and then we extend our results to the $k_T$ factorization frame. We show that the soft divergence from the specific NLO diagrams will c...
1601.07551
Luca Merlo Dr.
M.B. Gavela, E.E. Jenkins, A.V. Manohar, L. Merlo
Analysis of General Power Counting Rules in Effective Field Theory
V2: more details and examples added; version published in journal. 17 pages, 4 figures, 2 tables
Eur. Phys. J. C (2016) 76:485
10.1140/epjc/s10052-016-4332-1
CERN-TH-2016-015, FTUAM-16-2, IFT-UAM/CSIC-16-006
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We derive the general counting rules for a quantum effective field theory (EFT) in $\mathsf{d}$ dimensions. The rules are valid for strongly and weakly coupled theories, and predict that all kinetic energy terms are canonically normalized. They determine the energy dependence of scattering cross sections in the range...
[ { "created": "Wed, 27 Jan 2016 21:00:01 GMT", "version": "v1" }, { "created": "Fri, 9 Sep 2016 10:28:58 GMT", "version": "v2" } ]
2016-09-12
[ [ "Gavela", "M. B.", "" ], [ "Jenkins", "E. E.", "" ], [ "Manohar", "A. V.", "" ], [ "Merlo", "L.", "" ] ]
We derive the general counting rules for a quantum effective field theory (EFT) in $\mathsf{d}$ dimensions. The rules are valid for strongly and weakly coupled theories, and predict that all kinetic energy terms are canonically normalized. They determine the energy dependence of scattering cross sections in the range o...
hep-ph/9603249
Xiangdong Ji
Xiangdong Ji (MIT and INT)
Gauge-Invariant Decomposition of Nucleon Spin and Its Spin-Off
null
Phys.Rev.Lett. 78 (1997) 610-613
10.1103/PhysRevLett.78.610
null
hep-ph
null
I introduce a gauge invariant decomposition of the nucleon spin into quark helicity, quark orbital, and gluon contributions. The total quark (and hence the quark orbital) contribution is shown to be measurable through virtual Compton scattering in a special kinematic region where single quark scattering dominates. Th...
[ { "created": "Fri, 8 Mar 1996 00:19:40 GMT", "version": "v1" } ]
2009-10-28
[ [ "Ji", "Xiangdong", "", "MIT and INT" ] ]
I introduce a gauge invariant decomposition of the nucleon spin into quark helicity, quark orbital, and gluon contributions. The total quark (and hence the quark orbital) contribution is shown to be measurable through virtual Compton scattering in a special kinematic region where single quark scattering dominates. This...
hep-ph/0004028
George Lazarides
M. E. Gomez (IST, Lisbon), G. Lazarides, C. Pallis (Aristotle University of Thessaloniki)
Yukawa Unification, b --> s gamma and Bino-Stau Coannihilation
16 pages including 3 figures, Revtex, major revisions are made
Phys.Lett.B487:313-320,2000
10.1016/S0370-2693(00)00841-8
UT-STPD-2/00, FISIST/2-2000/CFIF
hep-ph
null
The minimal supersymmetric standard model with universal boundary conditions and "asymptotic" Yukawa unification is considered. The full one-loop effective potential for radiative electroweak symmetry breaking as well as the one-loop corrections to the charged Higgs boson, b-quark and tau lepton masses are included. ...
[ { "created": "Tue, 4 Apr 2000 15:19:12 GMT", "version": "v1" }, { "created": "Sun, 18 Jun 2000 12:01:42 GMT", "version": "v2" } ]
2008-11-26
[ [ "Gomez", "M. E.", "", "IST, Lisbon" ], [ "Lazarides", "G.", "", "Aristotle\n University of Thessaloniki" ], [ "Pallis", "C.", "", "Aristotle\n University of Thessaloniki" ] ]
The minimal supersymmetric standard model with universal boundary conditions and "asymptotic" Yukawa unification is considered. The full one-loop effective potential for radiative electroweak symmetry breaking as well as the one-loop corrections to the charged Higgs boson, b-quark and tau lepton masses are included. Th...
1307.3962
Sven Heinemeyer
A. Freitas, K. Hagiwara, S. Heinemeyer, P. Langacker, K. Moenig, M. Tanabashi, G.W. Wilson
Exploring Quantum Physics at the ILC
30 pages, 8 figures; Snowmass White Paper contribution
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We review the ILC capabilities to explore the electroweak (EW) sector of the SM at high precision and the prospects of unveiling signals of BSM physics, either through the presence of new particles in higher-order corrections or via direct production of extra EW gauge bosons. This includes electroweak precision obser...
[ { "created": "Mon, 15 Jul 2013 14:31:08 GMT", "version": "v1" } ]
2013-07-16
[ [ "Freitas", "A.", "" ], [ "Hagiwara", "K.", "" ], [ "Heinemeyer", "S.", "" ], [ "Langacker", "P.", "" ], [ "Moenig", "K.", "" ], [ "Tanabashi", "M.", "" ], [ "Wilson", "G. W.", "" ] ]
We review the ILC capabilities to explore the electroweak (EW) sector of the SM at high precision and the prospects of unveiling signals of BSM physics, either through the presence of new particles in higher-order corrections or via direct production of extra EW gauge bosons. This includes electroweak precision observa...
2208.14857
Siyi Zhou
Haipeng An, Xi Tong, Siyi Zhou
Superheavy Dark Matter Production from Symmetry Restoration First-Order Phase Transition During Inflation
11 pages, 7 figures
null
null
KOBE-COSMO-22-11
hep-ph astro-ph.CO hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a scenario where superheavy dark matter (DM) can be produced via symmetry restoration first-order phase transition during inflation triggered by the evolution of the inflaton field. The phase transition happens in a spectator sector coupled to the inflaton field. During the phase transition, the spectator ...
[ { "created": "Wed, 31 Aug 2022 13:39:59 GMT", "version": "v1" }, { "created": "Wed, 7 Sep 2022 00:44:34 GMT", "version": "v2" } ]
2022-09-08
[ [ "An", "Haipeng", "" ], [ "Tong", "Xi", "" ], [ "Zhou", "Siyi", "" ] ]
We propose a scenario where superheavy dark matter (DM) can be produced via symmetry restoration first-order phase transition during inflation triggered by the evolution of the inflaton field. The phase transition happens in a spectator sector coupled to the inflaton field. During the phase transition, the spectator fi...
hep-ph/9608294
Yuping Kuang
Chong-Xing Yue, Hong-Yi Zhou, Yu-Ping Kuang, and Gong-Ru lu
t anti-t Production Rates at the Tevatron and the LHC in Topcolor- Assisted Multiscale Technicolor Models
16 pages in RevTex, 9 postscript figures
Phys.Rev.D55:5541-5548,1997
10.1103/PhysRevD.55.5541
TUIMP-TH-96/79
hep-ph
null
We study the contributions of the neutral pseudo Goldstone bosons (technipions and top-pions) to the t anti-t production cross sections at the Tevatron and the LHC in topcolor-assisted multiscale technicolor (TOPCMTC) models via the gluon-gluon fusion process from the loop-level couplings between the pseudo Goldstone...
[ { "created": "Sat, 10 Aug 1996 05:23:00 GMT", "version": "v1" } ]
2008-12-18
[ [ "Yue", "Chong-Xing", "" ], [ "Zhou", "Hong-Yi", "" ], [ "Kuang", "Yu-Ping", "" ], [ "lu", "Gong-Ru", "" ] ]
We study the contributions of the neutral pseudo Goldstone bosons (technipions and top-pions) to the t anti-t production cross sections at the Tevatron and the LHC in topcolor-assisted multiscale technicolor (TOPCMTC) models via the gluon-gluon fusion process from the loop-level couplings between the pseudo Goldstone b...
2302.01761
Hsiang-nan Li
Hsiang-nan Li
Dispersive constraints on fermion masses
20 pages, 14 figures, journal version, estimates on theoretical uncertainties included
null
10.1103/PhysRevD.107.094007
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We demonstrate that fermion masses in the Standard Model (SM) can be constrained by the dispersion relations obeyed by hadronic and semileptonic decay widths of a fictitious heavy quark $Q$ with an arbitrary mass. These relations, imposing stringent connections between the high-mass and low-mass behaviors of decay wi...
[ { "created": "Fri, 3 Feb 2023 14:20:37 GMT", "version": "v1" }, { "created": "Tue, 2 May 2023 16:41:37 GMT", "version": "v2" } ]
2023-05-17
[ [ "Li", "Hsiang-nan", "" ] ]
We demonstrate that fermion masses in the Standard Model (SM) can be constrained by the dispersion relations obeyed by hadronic and semileptonic decay widths of a fictitious heavy quark $Q$ with an arbitrary mass. These relations, imposing stringent connections between the high-mass and low-mass behaviors of decay widt...
hep-ph/0005170
Bohdan Grzadkowski
Bohdan Grzadkowski (Warsaw U.), John F. Gunion (UC, Davis) and Jacek Pliszka(Warsaw U.)
Testing CP Violation in the Higgs Sector at Muon Colliders
6 pages, LaTex, 2 figures, talk given at the 35th Rencontres de Moriond, Electroweak Interactions and Unified Theories, Les Arcs, France, March 11-18, 2000
null
null
null
hep-ph
null
We study the possibility of measuring the muon Yukawa couplings in s-channel Higgs boson production at a muon collider with transversely polarized beams. We investigate sensitivity to the relative size of the CP-odd and CP-even muon Yukawa couplings. Provided the event rate observed justifies the operation of the mu+...
[ { "created": "Wed, 17 May 2000 16:53:57 GMT", "version": "v1" } ]
2007-05-23
[ [ "Grzadkowski", "Bohdan", "", "Warsaw U." ], [ "Gunion", "John F.", "", "UC, Davis" ], [ "Pliszka", "Jacek", "", "Warsaw U." ] ]
We study the possibility of measuring the muon Yukawa couplings in s-channel Higgs boson production at a muon collider with transversely polarized beams. We investigate sensitivity to the relative size of the CP-odd and CP-even muon Yukawa couplings. Provided the event rate observed justifies the operation of the mu+mu...
1801.06254
Hugo Ter\c{c}as
H. Ter\c{c}as, J. D. Rodrigues and J. T. Mendon\c{c}a
Axion-plasmon polaritons in strongly magnetized plasmas
Axions, polaritons, avoided crossing, dynamical instability, axion-like particles, magnetized plasmas
Phys. Rev. Lett. 120, 181803 (2018)
10.1103/PhysRevLett.120.181803
null
hep-ph physics.plasm-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Axions are hypothetical particles related to the violation of the charge-parity symmetry, being the most prone candidates for dark matter. Multiple attempts to prove their existence are currently performed in different physical systems. Here, we anticipate the possibility of the axions coupling to the electrostatic (...
[ { "created": "Thu, 18 Jan 2018 23:51:03 GMT", "version": "v1" } ]
2018-05-09
[ [ "Terças", "H.", "" ], [ "Rodrigues", "J. D.", "" ], [ "Mendonça", "J. T.", "" ] ]
Axions are hypothetical particles related to the violation of the charge-parity symmetry, being the most prone candidates for dark matter. Multiple attempts to prove their existence are currently performed in different physical systems. Here, we anticipate the possibility of the axions coupling to the electrostatic (La...
2212.12893
Qi Wu
Qi Wu, Jun-Zhang Wang and Shi-Lin Zhu
The $X(3872)\rightarrow J/\psi \pi \gamma$ and $X(3872)\rightarrow J/\psi \pi\pi \gamma$ decays
8 pages, 6 figures and 2 tables, accepted by Phys. Rev. D
Phys.Rev.D 107 (2023) 7, 074002
10.1103/PhysRevD.107.074002
null
hep-ph hep-ex
http://creativecommons.org/publicdomain/zero/1.0/
We study the $\rho$ and $\omega$ meson contribution to the radiative decays $X(3872)\rightarrow J/\psi \pi \gamma$ and $X(3872)\rightarrow J/\psi \pi\pi \gamma$. The $X(3872)\rightarrow J/\psi \pi \gamma$ is dominated by the $\omega$ meson. As for the $X(3872)\rightarrow J/\psi \pi\pi \gamma$, the contributions of th...
[ { "created": "Sun, 25 Dec 2022 11:23:32 GMT", "version": "v1" }, { "created": "Wed, 15 Mar 2023 07:16:04 GMT", "version": "v2" } ]
2023-04-10
[ [ "Wu", "Qi", "" ], [ "Wang", "Jun-Zhang", "" ], [ "Zhu", "Shi-Lin", "" ] ]
We study the $\rho$ and $\omega$ meson contribution to the radiative decays $X(3872)\rightarrow J/\psi \pi \gamma$ and $X(3872)\rightarrow J/\psi \pi\pi \gamma$. The $X(3872)\rightarrow J/\psi \pi \gamma$ is dominated by the $\omega$ meson. As for the $X(3872)\rightarrow J/\psi \pi\pi \gamma$, the contributions of the ...
1806.08204
Sinan Zei{\ss}ner
Wei-Chih Huang, Heinrich P\"as and Sinan Zei{\ss}ner
Scalar Dark Matter, GUT baryogenesis and Radiative neutrino mass
16 pages, 6 figures. v2: version accepted by PRD
Phys. Rev. D 98, 075024 (2018)
10.1103/PhysRevD.98.075024
DO-TH 18/12, CP3-Origins-2018-022 DNRF90
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We investigate an interesting correlation among dark matter phenomenology, neutrino mass generation and GUT baryogenesis, based on the scotogenic model. The model contains additional right-handed neutrinos $N$ and a second Higgs doublet $\Phi$, both of which are odd under an imposed $Z_2$ symmetry. The neutral compon...
[ { "created": "Thu, 21 Jun 2018 12:38:59 GMT", "version": "v1" }, { "created": "Wed, 7 Nov 2018 12:06:18 GMT", "version": "v2" } ]
2018-11-14
[ [ "Huang", "Wei-Chih", "" ], [ "Päs", "Heinrich", "" ], [ "Zeißner", "Sinan", "" ] ]
We investigate an interesting correlation among dark matter phenomenology, neutrino mass generation and GUT baryogenesis, based on the scotogenic model. The model contains additional right-handed neutrinos $N$ and a second Higgs doublet $\Phi$, both of which are odd under an imposed $Z_2$ symmetry. The neutral componen...
1912.02689
Miguel G. Folgado
Miguel G. Folgado, Andrea Donini and Nuria Rius
Gravity-mediated Dark Matter in Clockwork/Linear Dilaton Extra-Dimensions
26 pages, 6 figures. Published version. arXiv admin note: text overlap with arXiv:1907.04340
J. High Energ. Phys. 2020, 36 (2020)
10.1007/JHEP04(2020)036
FTUV-19-1128.3781, IFIC/19-56
hep-ph astro-ph.HE
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study for the first time the possibility that Dark Matter (represented by particles with spin $0,1/2$ or $1$) interacts gravitationally with Standard Model particles in an extra-dimensional Clockwork/Linear Dilaton model. We assume that both, the Dark Matter and the Standard Model, are localized in the IR-brane an...
[ { "created": "Wed, 4 Dec 2019 12:14:22 GMT", "version": "v1" }, { "created": "Thu, 9 Apr 2020 15:07:40 GMT", "version": "v2" } ]
2020-04-13
[ [ "Folgado", "Miguel G.", "" ], [ "Donini", "Andrea", "" ], [ "Rius", "Nuria", "" ] ]
We study for the first time the possibility that Dark Matter (represented by particles with spin $0,1/2$ or $1$) interacts gravitationally with Standard Model particles in an extra-dimensional Clockwork/Linear Dilaton model. We assume that both, the Dark Matter and the Standard Model, are localized in the IR-brane and ...
hep-ph/9404209
R. Sekhar Chivukula
R.S. Chivukula, E.H. Simmons, and J. Terning
A Heavy Top Quark and the $Zb\bar{b}$ Vertex in Non-Commuting Extended Technicolor
14 pages, (uses harmac.tex), BUHEP-94-8
Phys.Lett.B331:383-389,1994
10.1016/0370-2693(94)91068-5
null
hep-ph
null
We explore corrections to electroweak parameters in the context of Extended Technicolor (ETC) models in which the ETC gauge-boson which generates the top-quark mass carries weak $SU(2)$ charge. For $m_t \sim 150$ GeV there exist potentially large corrections to the $Z$ decay width to $b$-quarks. Interestingly, in con...
[ { "created": "Mon, 4 Apr 1994 03:27:47 GMT", "version": "v1" } ]
2008-11-26
[ [ "Chivukula", "R. S.", "" ], [ "Simmons", "E. H.", "" ], [ "Terning", "J.", "" ] ]
We explore corrections to electroweak parameters in the context of Extended Technicolor (ETC) models in which the ETC gauge-boson which generates the top-quark mass carries weak $SU(2)$ charge. For $m_t \sim 150$ GeV there exist potentially large corrections to the $Z$ decay width to $b$-quarks. Interestingly, in contr...
2203.03280
Triparno Bandyopadhyay
Triparno Bandyopadhyay, Sabyasachi Chakraborty, Sokratis Trifinopoulos
Displaced Searches for Light Vector Bosons at Belle II
Published version. 19 pages, 8 figures. Minor Changes
null
10.1007/JHEP05(2022)141
SISSA 04/2022/FISI, TIFR/TH/22-3
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
With a design luminosity of 50 ab$^{-1}$ and detectors with tracking capabilities extending beyond 1 m, the Belle II experiment is the perfect laboratory for the search of particles that couple weakly to the Standard Model and have a characteristic decay length of a few centimetres and more. We show that for models o...
[ { "created": "Mon, 7 Mar 2022 10:52:37 GMT", "version": "v1" }, { "created": "Mon, 23 May 2022 19:00:37 GMT", "version": "v2" } ]
2022-05-25
[ [ "Bandyopadhyay", "Triparno", "" ], [ "Chakraborty", "Sabyasachi", "" ], [ "Trifinopoulos", "Sokratis", "" ] ]
With a design luminosity of 50 ab$^{-1}$ and detectors with tracking capabilities extending beyond 1 m, the Belle II experiment is the perfect laboratory for the search of particles that couple weakly to the Standard Model and have a characteristic decay length of a few centimetres and more. We show that for models of ...
hep-ph/9610335
Michael Pluemacher
W. Buchmuller
Electroweak Phase Transition and Neutrino Masses
LaTeX, 23 pages, 9 figures, uses epsfig. To be published in Quarks '96, Proc. of the IXth International Seminar, Yaroslavl, Russia, 1996
null
null
DESY 96-216
hep-ph hep-lat
null
The presently observed cosmological baryon asymmetry has been finally determined at the time of the electroweak phase transition, when baryon and lepton number violating interactions fell out of thermal equilibrium. We discuss the thermodynamics of the phase transition based on the free energy of the SU(2) Higgs mode...
[ { "created": "Fri, 11 Oct 1996 16:02:08 GMT", "version": "v1" } ]
2007-05-23
[ [ "Buchmuller", "W.", "" ] ]
The presently observed cosmological baryon asymmetry has been finally determined at the time of the electroweak phase transition, when baryon and lepton number violating interactions fell out of thermal equilibrium. We discuss the thermodynamics of the phase transition based on the free energy of the SU(2) Higgs model ...
1503.07611
Xiaoran Zhao
Qiang Li, Zhao Li, Qi-Shu Yan, Xiaoran Zhao
Probe Higgs boson pair production via the $3 \ell 2 j$ + missing $E_T$ mode
Added references
Phys. Rev. D 92, 014015 (2015)
10.1103/PhysRevD.92.014015
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We perform a detailed hadron-level study on the sensitivity of Higgs boson pair production via the $WW^{*}WW^{*}$ channel with the final state $3 \ell 2 j$ + missing $E_T$ at the LHC with the collision energy $\sqrt{S} = 14$ TeV and a future 100 TeV collider. To avoid the huge background from $pp \to Z W + \textrm{je...
[ { "created": "Thu, 26 Mar 2015 03:51:33 GMT", "version": "v1" }, { "created": "Wed, 1 Apr 2015 03:24:17 GMT", "version": "v2" } ]
2015-07-22
[ [ "Li", "Qiang", "" ], [ "Li", "Zhao", "" ], [ "Yan", "Qi-Shu", "" ], [ "Zhao", "Xiaoran", "" ] ]
We perform a detailed hadron-level study on the sensitivity of Higgs boson pair production via the $WW^{*}WW^{*}$ channel with the final state $3 \ell 2 j$ + missing $E_T$ at the LHC with the collision energy $\sqrt{S} = 14$ TeV and a future 100 TeV collider. To avoid the huge background from $pp \to Z W + \textrm{jets...
1803.07034
Sergey Koshkarev
Sergey Koshkarev, Stefan Groote
Analysis of the baryonic state $|[qc]c\rangle$
5 pages
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this note we analyse the structure of the baryonic state $|[qc]c\rangle$ with a spin-0 diquark $[qc]$, as compared to baryonic states $|(qc)c\rangle$ and $|q(cc)\rangle$ containing internal spin-1 diquark states. While one can identify the state $|q(cc)\rangle$ with the state observed at LHCb, the state $|(qc)c\ra...
[ { "created": "Mon, 19 Mar 2018 16:51:28 GMT", "version": "v1" }, { "created": "Sun, 1 Apr 2018 17:22:26 GMT", "version": "v2" }, { "created": "Thu, 16 Aug 2018 21:10:58 GMT", "version": "v3" } ]
2018-08-20
[ [ "Koshkarev", "Sergey", "" ], [ "Groote", "Stefan", "" ] ]
In this note we analyse the structure of the baryonic state $|[qc]c\rangle$ with a spin-0 diquark $[qc]$, as compared to baryonic states $|(qc)c\rangle$ and $|q(cc)\rangle$ containing internal spin-1 diquark states. While one can identify the state $|q(cc)\rangle$ with the state observed at LHCb, the state $|(qc)c\rang...
2407.02462
Manibrata Sen
Manibrata Sen, Alexei Y. Smirnov
Neutrinos with refractive masses and the DESI BAO results
6 pages, 3 figures
null
null
null
hep-ph astro-ph.CO
http://creativecommons.org/licenses/by/4.0/
Due to interactions with dark matter, neutrinos can acquire refractive masses which explain the data from oscillation experiments. We study the effects of relic neutrinos with refractive masses on structure formation in the Universe. In the model with a light fermionic mediator, above the resonance energy, $E_R$, ass...
[ { "created": "Tue, 2 Jul 2024 17:40:07 GMT", "version": "v1" } ]
2024-07-03
[ [ "Sen", "Manibrata", "" ], [ "Smirnov", "Alexei Y.", "" ] ]
Due to interactions with dark matter, neutrinos can acquire refractive masses which explain the data from oscillation experiments. We study the effects of relic neutrinos with refractive masses on structure formation in the Universe. In the model with a light fermionic mediator, above the resonance energy, $E_R$, assoc...
1107.4306
Tanumoy Mandal
Shrihari Gopalakrishna, Tanumoy Mandal, Subhadip Mitra, Rakesh Tibrewala
LHC Signatures of a Vector-like b'
22 pages, 6 figures, minor changes, reference added, journal version
Phys.Rev.D84:055001,2011
10.1103/PhysRevD.84.055001
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Many beyond the standard model extensions predict the existence of heavy vector-like fermions. We study the LHC signatures of one such heavy vector-like fermion, called b', with electromagnetic charge -1/3 like the SM b-quark, but which could generically have different SU(2)_L and U(1)_Y quantum numbers. Our emphasis...
[ { "created": "Thu, 21 Jul 2011 16:31:35 GMT", "version": "v1" }, { "created": "Fri, 19 Aug 2011 14:40:11 GMT", "version": "v2" } ]
2011-09-29
[ [ "Gopalakrishna", "Shrihari", "" ], [ "Mandal", "Tanumoy", "" ], [ "Mitra", "Subhadip", "" ], [ "Tibrewala", "Rakesh", "" ] ]
Many beyond the standard model extensions predict the existence of heavy vector-like fermions. We study the LHC signatures of one such heavy vector-like fermion, called b', with electromagnetic charge -1/3 like the SM b-quark, but which could generically have different SU(2)_L and U(1)_Y quantum numbers. Our emphasis w...
hep-ph/0510114
Eugenio Megias
E. Megias, E. Ruiz Arriola, L.L. Salcedo
Non-perturbative contribution to the Polyakov loop above the deconfinement phase transition
Talk given at Quark Matter 2005, 18th Internationl Conference on Nucleus-Nucleus Interactions, August 4-9, 2005, Budapest, Hungary, 4 pages, 3 figures
Rom.Rep.Phys. 58 (2006) 081-086
null
null
hep-ph
null
The Polyakov loop is an order parameter to the confinement-deconfinement phase transition in pure gluodynamics. Recently a simple phenomenological model has been proposed to describe the available lattice data for the renormalized Polyakov loop in the deconfinement phase (hep-ph/0505215). These data exhibit unequivoc...
[ { "created": "Mon, 10 Oct 2005 14:19:03 GMT", "version": "v1" } ]
2007-05-23
[ [ "Megias", "E.", "" ], [ "Arriola", "E. Ruiz", "" ], [ "Salcedo", "L. L.", "" ] ]
The Polyakov loop is an order parameter to the confinement-deconfinement phase transition in pure gluodynamics. Recently a simple phenomenological model has been proposed to describe the available lattice data for the renormalized Polyakov loop in the deconfinement phase (hep-ph/0505215). These data exhibit unequivocal...
0903.0363
Brian Batell
Brian Batell, Maxim Pospelov, Adam Ritz
Probing a Secluded U(1) at B-factories
14 pages, 3 figures
Phys.Rev.D79:115008,2009
10.1103/PhysRevD.79.115008
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A secluded U(1) gauge field, kinetically mixed with Standard Model hypercharge, provides a `portal' mediating interactions with a hidden sector at the renormalizable level, as recently exploited in the context of WIMP dark matter. The secluded U(1) symmetry-breaking scale may naturally be suppressed relative to the w...
[ { "created": "Mon, 2 Mar 2009 20:10:01 GMT", "version": "v1" } ]
2009-07-30
[ [ "Batell", "Brian", "" ], [ "Pospelov", "Maxim", "" ], [ "Ritz", "Adam", "" ] ]
A secluded U(1) gauge field, kinetically mixed with Standard Model hypercharge, provides a `portal' mediating interactions with a hidden sector at the renormalizable level, as recently exploited in the context of WIMP dark matter. The secluded U(1) symmetry-breaking scale may naturally be suppressed relative to the wea...
hep-ph/9609385
Boris Kopeliovich
Boris Kopeliovich (Heidelberg and Dubna)
Soft Component of Hard Reactions and Nuclear Shadowing (DIS, Drell-Yan reaction, heavy quark production)
Latex 12 pages including 4 figures. Invited talk at the Workshop Hirschegg'95: Dynamical Properties of Hadrons in Nuclear Matter. In proceedings, ed. by H. Feldmeier and W. N\"orenberg, Darmstadt, 1995, p. 102
null
null
null
hep-ph
null
We consider deep-inelastic lepton scattering, Drell-Yan lepton pair and heavy quark production in the reference frame of the target. These reactions traditionally treated as hard have, however, a substantial leading twist soft contribution. One of the manifestations of such a soft component, nuclear shadowing, is ove...
[ { "created": "Tue, 17 Sep 1996 17:33:09 GMT", "version": "v1" } ]
2007-05-23
[ [ "Kopeliovich", "Boris", "", "Heidelberg and Dubna" ] ]
We consider deep-inelastic lepton scattering, Drell-Yan lepton pair and heavy quark production in the reference frame of the target. These reactions traditionally treated as hard have, however, a substantial leading twist soft contribution. One of the manifestations of such a soft component, nuclear shadowing, is overv...
1507.05536
Anna Lamperstorfer
Camilo Garcia-Cely, Alejandro Ibarra, Anna S. Lamperstorfer, Michel H.G. Tytgat
Gamma-rays from Heavy Minimal Dark Matter
27 pages, 8 figures. Matches the version accepted for publication by JCAP
null
10.1088/1475-7516/2015/10/058
null
hep-ph astro-ph.CO
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider the annihilation into gamma rays of Minimal Dark Matter candidates in the fermionic 5-plet and scalar 7-plet representations of $SU(2)_L$, taking into account both the Sommerfeld effect and the internal bremsstrahlung. Assuming the Einasto profile, we show that present measurements of the Galactic Center ...
[ { "created": "Mon, 20 Jul 2015 15:35:09 GMT", "version": "v1" }, { "created": "Tue, 20 Oct 2015 07:40:08 GMT", "version": "v2" } ]
2015-11-04
[ [ "Garcia-Cely", "Camilo", "" ], [ "Ibarra", "Alejandro", "" ], [ "Lamperstorfer", "Anna S.", "" ], [ "Tytgat", "Michel H. G.", "" ] ]
We consider the annihilation into gamma rays of Minimal Dark Matter candidates in the fermionic 5-plet and scalar 7-plet representations of $SU(2)_L$, taking into account both the Sommerfeld effect and the internal bremsstrahlung. Assuming the Einasto profile, we show that present measurements of the Galactic Center by...
1603.00879
Julien Baglio
Julien Baglio and C\'edric Weiland
Heavy neutrino impact on the triple Higgs coupling
6 pages, 2 figures. v3: a minor typo is corrected in Eq. (17), results are not affected
Phys. Rev. D 94, 013002 (2016)
10.1103/PhysRevD.94.013002
IPPP/16/14
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present the first calculation of the one-loop corrections to the triple Higgs coupling in the framework of a simplified 3+1 Dirac neutrino model, that is three light neutrinos plus one heavy neutrino embedded in the Standard Model (SM). The triple Higgs coupling is a key parameter of the scalar potential triggerin...
[ { "created": "Wed, 2 Mar 2016 21:00:03 GMT", "version": "v1" }, { "created": "Thu, 7 Jul 2016 12:55:00 GMT", "version": "v2" }, { "created": "Mon, 28 Nov 2016 10:34:11 GMT", "version": "v3" } ]
2016-11-29
[ [ "Baglio", "Julien", "" ], [ "Weiland", "Cédric", "" ] ]
We present the first calculation of the one-loop corrections to the triple Higgs coupling in the framework of a simplified 3+1 Dirac neutrino model, that is three light neutrinos plus one heavy neutrino embedded in the Standard Model (SM). The triple Higgs coupling is a key parameter of the scalar potential triggering ...
0909.2399
Davron Matrasulov
D.U. Matrasulov, Kh.T. Butanov, Kh.Yu. Rakhimov and F.C. Khanna
Spectra of heavy-light mesons at finite temperature
11 pages, 1 figure and 3 tables
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Spectra of heavy-light meson are studied using potential model and thermofield dynamics prescription. The mass spectra of different heavy-light mesons are calculated at different temperatures and compared with those at T=0. It is found that the binding mass of heavy-light meson decreases as temperature increases.
[ { "created": "Sun, 13 Sep 2009 06:57:23 GMT", "version": "v1" } ]
2009-09-15
[ [ "Matrasulov", "D. U.", "" ], [ "Butanov", "Kh. T.", "" ], [ "Rakhimov", "Kh. Yu.", "" ], [ "Khanna", "F. C.", "" ] ]
Spectra of heavy-light meson are studied using potential model and thermofield dynamics prescription. The mass spectra of different heavy-light mesons are calculated at different temperatures and compared with those at T=0. It is found that the binding mass of heavy-light meson decreases as temperature increases.
2205.09184
Simone Devoto
Simone Devoto
Heavy-quark production at NNLO
Contribution to the 2022 QCD session of the 56th Rencontres des Moriond
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
We present the calculation of QCD radiative corrections to heavy-quark production at NNLO. The calculation is implemented in an updated version of \textsc{Matrix}, which allows us to obtain multidifferential predictions for stable top quarks. We also report on the NNLO calculation for $b{\bar b}$ production and comme...
[ { "created": "Wed, 18 May 2022 19:18:37 GMT", "version": "v1" } ]
2022-05-20
[ [ "Devoto", "Simone", "" ] ]
We present the calculation of QCD radiative corrections to heavy-quark production at NNLO. The calculation is implemented in an updated version of \textsc{Matrix}, which allows us to obtain multidifferential predictions for stable top quarks. We also report on the NNLO calculation for $b{\bar b}$ production and comment...
hep-ph/0005269
Renard Fernand Michel
G.J. Gounaris, J. Layssac and F.M. Renard
Off-shell structure of the anomalous Z and gamma self-couplings
37 pages, 7 figures and Addendum to Phys.Rev.D62,073012(2000) e-mail: renard@lpm.univ-montp2.fr
Phys.Rev.D62:073012,2000
10.1103/PhysRevD.62.073012
PM/00-16, THES-TP 2000-05
hep-ph
null
We establish the general off-shell structure of the three neutral gauge boson self-couplings V1*V2*V3*, with applications to the Z*Z*Z*, Z*Z*gamma*, gamma*gamma*Z* cases. New coupling forms appear which do not exist when two gauge bosons are on-shell. We give the contribution arising from a fermionic triangle loop. I...
[ { "created": "Fri, 26 May 2000 14:50:42 GMT", "version": "v1" }, { "created": "Tue, 6 Jun 2000 06:12:04 GMT", "version": "v2" }, { "created": "Thu, 22 Jun 2000 06:15:22 GMT", "version": "v3" }, { "created": "Thu, 13 Sep 2001 06:10:30 GMT", "version": "v4" }, { "cr...
2011-03-23
[ [ "Gounaris", "G. J.", "" ], [ "Layssac", "J.", "" ], [ "Renard", "F. M.", "" ] ]
We establish the general off-shell structure of the three neutral gauge boson self-couplings V1*V2*V3*, with applications to the Z*Z*Z*, Z*Z*gamma*, gamma*gamma*Z* cases. New coupling forms appear which do not exist when two gauge bosons are on-shell. We give the contribution arising from a fermionic triangle loop. It ...
0810.4381
Tatsuru Kikuchi
Tatsuru Kikuchi
Enhanced production of TeV right-handed neutrinos through the large magnetic moment
4 pages, 3 figures; version to appear in Phys. Lett. B
Phys.Lett.B671:272-274,2009
10.1016/j.physletb.2008.12.014
KEK-TH-1283
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We examine the effects of magnetic moments of right-handed neutrinos, whose masses are set at around TeV scale, then it is plausible to have a large enhancement for the production cross section of TeV scale right-handed neutrinos though the Drell-Yan process, e^+ e^- to gamma, Z* to N_i N_j, which is within the reach...
[ { "created": "Fri, 24 Oct 2008 05:28:45 GMT", "version": "v1" }, { "created": "Tue, 28 Oct 2008 08:57:45 GMT", "version": "v2" }, { "created": "Mon, 8 Dec 2008 13:33:14 GMT", "version": "v3" } ]
2014-11-18
[ [ "Kikuchi", "Tatsuru", "" ] ]
We examine the effects of magnetic moments of right-handed neutrinos, whose masses are set at around TeV scale, then it is plausible to have a large enhancement for the production cross section of TeV scale right-handed neutrinos though the Drell-Yan process, e^+ e^- to gamma, Z* to N_i N_j, which is within the reach o...
hep-ph/0105277
Evgenij Martynov
P.Desgrolard, E.Martynov
Regge models of the proton structure function with and without hard Pomeron: a comparative analysis
21 pages, LaTeX2e, 4 eps figures, report number is added, some typos are corrected
Eur.Phys.J.C22:479-492,2001
10.1007/s100520100811
LYCEN2001-35
hep-ph hep-ex
null
A comparative phenomenological analysis of Regge models with and without a hard Pomeron component is performed using a common set of recently updated data. It is shown that the data at small $x$ do not indicate explicitly the presence of the hard Pomeron. Moreover, the models with two soft-Pomeron components (simple ...
[ { "created": "Sun, 27 May 2001 01:10:54 GMT", "version": "v1" }, { "created": "Tue, 29 May 2001 09:05:32 GMT", "version": "v2" } ]
2011-09-13
[ [ "Desgrolard", "P.", "" ], [ "Martynov", "E.", "" ] ]
A comparative phenomenological analysis of Regge models with and without a hard Pomeron component is performed using a common set of recently updated data. It is shown that the data at small $x$ do not indicate explicitly the presence of the hard Pomeron. Moreover, the models with two soft-Pomeron components (simple an...
hep-ph/0702045
Adrian Palcu
Adrian Palcu
The exact eigenstates of the neutrino mass matrix without CP-phase violation
9 pages, no figures
Mod.Phys.Lett. A22 (2007) 1459-1468
10.1142/S0217732307023742
null
hep-ph
null
In this paper we obtain the exact mass-eigenstates of the Majorana physical neutrinos. We start by taking into account a general $3\times3$ mass matrix without any CP-phase violation. It is then diagonalized by exactly solving an appropriate set of equations. The solution supplies straightforwardly the mass eigenvalu...
[ { "created": "Sat, 3 Feb 2007 14:13:28 GMT", "version": "v1" } ]
2009-02-24
[ [ "Palcu", "Adrian", "" ] ]
In this paper we obtain the exact mass-eigenstates of the Majorana physical neutrinos. We start by taking into account a general $3\times3$ mass matrix without any CP-phase violation. It is then diagonalized by exactly solving an appropriate set of equations. The solution supplies straightforwardly the mass eigenvalues...
hep-ph/0112143
Christopher D. Carone
Carl E. Carlson and Christopher D. Carone (William and Mary)
Discerning Noncommutative Extra Dimensions
20 pages LaTeX, 8 eps figures (minor revisions, version to appear in Phys. Rev. D)
Phys.Rev. D65 (2002) 075007
10.1103/PhysRevD.65.075007
WM-01-114
hep-ph hep-th
null
Experimental limits on the violation of four-dimensional Lorentz invariance imply that noncommutativity among ordinary spacetime dimensions must be small. Noncommutativity among extra, compactified spatial dimensions, however, is far less constrained and may have discernable collider signatures. Here we study the exp...
[ { "created": "Tue, 11 Dec 2001 01:35:19 GMT", "version": "v1" }, { "created": "Mon, 28 Jan 2002 18:25:19 GMT", "version": "v2" } ]
2009-11-07
[ [ "Carlson", "Carl E.", "", "William and Mary" ], [ "Carone", "Christopher D.", "", "William and Mary" ] ]
Experimental limits on the violation of four-dimensional Lorentz invariance imply that noncommutativity among ordinary spacetime dimensions must be small. Noncommutativity among extra, compactified spatial dimensions, however, is far less constrained and may have discernable collider signatures. Here we study the exper...
hep-ph/9410211
Ariel Megevand
Luis Masperi, Ariel Megevand
Stability of Modified Electroweak Strings
Minor changes and inclusion of one figure. To be published on Z. f. Physik C. 11 pages, 1 postcript figure
Z.Phys. C72 (1996) 171-174
10.1007/s002880050234
null
hep-ph astro-ph
null
We discuss the stability of an electroweak string with axions in its core, which give to the configuration a quasi-topological property, and compare it with other modifications using instantons in the thin wall approximation.
[ { "created": "Tue, 4 Oct 1994 09:27:55 GMT", "version": "v1" }, { "created": "Thu, 16 Mar 1995 18:42:54 GMT", "version": "v2" }, { "created": "Fri, 8 Mar 1996 14:21:13 GMT", "version": "v3" } ]
2015-06-25
[ [ "Masperi", "Luis", "" ], [ "Megevand", "Ariel", "" ] ]
We discuss the stability of an electroweak string with axions in its core, which give to the configuration a quasi-topological property, and compare it with other modifications using instantons in the thin wall approximation.
1211.7106
Thomas G. Rizzo
M. W. Cahill-Rowley, J. L. Hewett, A. Ismail, T. G. Rizzo
SUSY Without Prejudice at the 7 and 8 TeV LHC: Gravitino LSPs
6 pages, 2 figures; contibution to ICHEP 2012
null
null
SLAC-PUB-15272
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We have examined the capability of the LHC, running at both 7 and 8 TeV, to explore the 19(20)-dimensional parameter space of the pMSSM with neutralino(gravitino) LSPs and soft masses up to 4 TeV employing the ATLAS SUSY analysis suite. Here we present some preliminary results for the gravitino model set, following t...
[ { "created": "Thu, 29 Nov 2012 22:12:50 GMT", "version": "v1" } ]
2012-12-03
[ [ "Cahill-Rowley", "M. W.", "" ], [ "Hewett", "J. L.", "" ], [ "Ismail", "A.", "" ], [ "Rizzo", "T. G.", "" ] ]
We have examined the capability of the LHC, running at both 7 and 8 TeV, to explore the 19(20)-dimensional parameter space of the pMSSM with neutralino(gravitino) LSPs and soft masses up to 4 TeV employing the ATLAS SUSY analysis suite. Here we present some preliminary results for the gravitino model set, following the...
1802.10449
Everton Murilo Carvalho Abreu
Mario J. Neves, Lucas Labre, Everton M. C. Abreu
Classical electrodynamics and gauge symmetry of the X-boson
9 pages. Two-column format
null
10.1142/S0217751X18501488
null
hep-ph hep-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In this paper we have obtained several new results concerning the X-boson, which is being considered recently as one of the main candidate of the dark matter particle content. The classical electrodynamics for the X-boson model was explored to understand its propagation in space-time. The field equations (Maxwell-typ...
[ { "created": "Sun, 25 Feb 2018 19:39:22 GMT", "version": "v1" } ]
2018-09-26
[ [ "Neves", "Mario J.", "" ], [ "Labre", "Lucas", "" ], [ "Abreu", "Everton M. C.", "" ] ]
In this paper we have obtained several new results concerning the X-boson, which is being considered recently as one of the main candidate of the dark matter particle content. The classical electrodynamics for the X-boson model was explored to understand its propagation in space-time. The field equations (Maxwell-type)...
2208.02669
Robin Sch\"urmann
X. Chen, T. Gehrmann, E.W.N. Glover, M. H\"ofer, A. Huss, R. Sch\"urmann
NNLO Photon Production with Realistic Photon Isolation
11 pages, 2 figures, one table, contribution to the proceedings of "Loops and Legs in Quantum Field Theory - LL2022, 25-30 April, 2022, Ettal, Germany"
null
null
null
hep-ph
http://creativecommons.org/licenses/by/4.0/
Isolated photon production at hadron colliders proceeds via direct production and fragmentation processes. Theory predictions for the isolated photon and photon-plus-jet cross section often impose idealised photon isolation criteria, eliminating the fragmentation contribution and introducing a systematic uncertainty ...
[ { "created": "Thu, 4 Aug 2022 13:57:02 GMT", "version": "v1" } ]
2022-08-05
[ [ "Chen", "X.", "" ], [ "Gehrmann", "T.", "" ], [ "Glover", "E. W. N.", "" ], [ "Höfer", "M.", "" ], [ "Huss", "A.", "" ], [ "Schürmann", "R.", "" ] ]
Isolated photon production at hadron colliders proceeds via direct production and fragmentation processes. Theory predictions for the isolated photon and photon-plus-jet cross section often impose idealised photon isolation criteria, eliminating the fragmentation contribution and introducing a systematic uncertainty in...
0812.2795
Juan Nieves Dr.
Jonathan M Flynn (Southampton, U), Yoshiyuki Nakagawa (Osaka, U.), Juan Nieves (IFIC, CSIC-UV) and Hiroshi Toki (Osaka, U.)
|Vub| from Exclusive Semileptonic B--> rho Decays
9 pages and 1 figure
Phys.Lett.B675:326-331,2009
10.1016/j.physletb.2009.04.037
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We use Omnes representations of the form factors V, A_1 and A_2 for exclusive semileptonic B--> rho decays, and apply them to combine experimental partial branching fraction information with theoretical calculations of the three form factors to extract |Vub|. We find a slightly lower result, |Vub|=(2.8 +- 0.2)x 10^{-...
[ { "created": "Mon, 15 Dec 2008 13:34:19 GMT", "version": "v1" } ]
2010-11-19
[ [ "Flynn", "Jonathan M", "", "Southampton, U" ], [ "Nakagawa", "Yoshiyuki", "", "Osaka, U." ], [ "Nieves", "Juan", "", "IFIC, CSIC-UV" ], [ "Toki", "Hiroshi", "", "Osaka, U." ] ]
We use Omnes representations of the form factors V, A_1 and A_2 for exclusive semileptonic B--> rho decays, and apply them to combine experimental partial branching fraction information with theoretical calculations of the three form factors to extract |Vub|. We find a slightly lower result, |Vub|=(2.8 +- 0.2)x 10^{-3}...
hep-ph/0205076
Naveen Gaur
S. Rai Choudhury and Naveen Gaur (Dept. of Physics & Astrophysics, University of Delhi, Delhi, India)
Supersymmetric effects in B_s \to \ell^+ \ell^- \gamma decays
REVTex (4.0) file 14 pages including 16 eps figures
null
null
null
hep-ph
null
B-meson decays are very useful probes for testing the Standard Model and its various extensions. Leptonic decays of B have very clean signatures in this respect and hence can be very useful testing grounds. In this work we study the effects of MSSM (Minimal Supersymmetric Extension of Standard Model) on various kinem...
[ { "created": "Wed, 8 May 2002 11:30:52 GMT", "version": "v1" } ]
2007-05-23
[ [ "Choudhury", "S. Rai", "", "Dept. of Physics & Astrophysics,\n University of Delhi, Delhi, India" ], [ "Gaur", "Naveen", "", "Dept. of Physics & Astrophysics,\n University of Delhi, Delhi, India" ] ]
B-meson decays are very useful probes for testing the Standard Model and its various extensions. Leptonic decays of B have very clean signatures in this respect and hence can be very useful testing grounds. In this work we study the effects of MSSM (Minimal Supersymmetric Extension of Standard Model) on various kinemat...
2012.05012
Francesco Tramontano
Renato Maria Prisco, Francesco Tramontano
Dual Subtractions
LaTeX, 53 pages, 9 figures, version accepted for publication
null
null
null
hep-ph hep-ex hep-th
http://creativecommons.org/licenses/by/4.0/
We propose a novel local subtraction scheme for the computation of Next-to-Leading Order contributions to theoretical predictions for scattering processes in perturbative Quantum Field Theory. With respect to well known schemes proposed since many years that build upon the analysis of the real radiation matrix elemen...
[ { "created": "Wed, 9 Dec 2020 12:47:49 GMT", "version": "v1" }, { "created": "Wed, 30 Jun 2021 05:46:43 GMT", "version": "v2" } ]
2021-07-01
[ [ "Prisco", "Renato Maria", "" ], [ "Tramontano", "Francesco", "" ] ]
We propose a novel local subtraction scheme for the computation of Next-to-Leading Order contributions to theoretical predictions for scattering processes in perturbative Quantum Field Theory. With respect to well known schemes proposed since many years that build upon the analysis of the real radiation matrix elements...
0910.4291
Guohuai Zhu
C.S. Kim, Seong Chan Park, Kai Wang and Guohuai Zhu
Invisible Higgs decay with B\to K\nu\bar{\nu} constraint
16 pages, 4 figures, the version to appear in Phys. Rev. D
Phys.Rev.D81:054004,2010
10.1103/PhysRevD.81.054004
IPMU-09-0103,ZIMP-09-04
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
If the Higgs boson were the only particle within the LHC accessible range, precision measurement of the Higgs's properties would play a unique role in studying electroweak symmetry breaking as well as possible new physics. We try to use low energy experiments such as rare B decay to constrain a challenging decay mode...
[ { "created": "Thu, 22 Oct 2009 11:06:47 GMT", "version": "v1" }, { "created": "Mon, 2 Nov 2009 11:20:20 GMT", "version": "v2" }, { "created": "Mon, 8 Mar 2010 16:12:53 GMT", "version": "v3" } ]
2014-11-20
[ [ "Kim", "C. S.", "" ], [ "Park", "Seong Chan", "" ], [ "Wang", "Kai", "" ], [ "Zhu", "Guohuai", "" ] ]
If the Higgs boson were the only particle within the LHC accessible range, precision measurement of the Higgs's properties would play a unique role in studying electroweak symmetry breaking as well as possible new physics. We try to use low energy experiments such as rare B decay to constrain a challenging decay mode o...
1301.0328
Ze'ev Surujon
Yuval Grossman, Ze'ev Surujon, Jure Zupan
How to test for mass degenerate Higgs resonances
13 pages. v2: improved referencing and discussion on universal phases, matches published JHEP version
JHEP 1303, 176 (2013)
10.1007/JHEP03(2013)176
YITP-SB-13-01
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Higgs-like signal observed at the LHC could be due to several mass degenerate resonances. We show that the number of resonances is related to the rank of a "production and decay" matrix, $R_{if}$. Each entry in this matrix contains the observed rate in a particular production mode $i$ and final state $f$. In the ...
[ { "created": "Wed, 2 Jan 2013 21:01:09 GMT", "version": "v1" }, { "created": "Thu, 25 Apr 2013 15:28:39 GMT", "version": "v2" } ]
2013-04-26
[ [ "Grossman", "Yuval", "" ], [ "Surujon", "Ze'ev", "" ], [ "Zupan", "Jure", "" ] ]
The Higgs-like signal observed at the LHC could be due to several mass degenerate resonances. We show that the number of resonances is related to the rank of a "production and decay" matrix, $R_{if}$. Each entry in this matrix contains the observed rate in a particular production mode $i$ and final state $f$. In the ca...
hep-ph/0210207
Borut Bajc
Borut Bajc, Goran Senjanovic, and Francesco Vissani
b-tau unification and large atmospheric mixing: a case for non-canonical see-saw
4 pages, a new reference added, to be published in PRL
Phys.Rev.Lett. 90 (2003) 051802
10.1103/PhysRevLett.90.051802
null
hep-ph
null
We study the second and third generation masses in the context of the minimal renormalizable SO(10) theory. We show that if the see-saw takes the non-canonical (type II) form, large atmospheric neutrino mixing angle requires b-tau unification.
[ { "created": "Tue, 15 Oct 2002 08:53:45 GMT", "version": "v1" }, { "created": "Mon, 30 Dec 2002 17:00:29 GMT", "version": "v2" } ]
2009-11-07
[ [ "Bajc", "Borut", "" ], [ "Senjanovic", "Goran", "" ], [ "Vissani", "Francesco", "" ] ]
We study the second and third generation masses in the context of the minimal renormalizable SO(10) theory. We show that if the see-saw takes the non-canonical (type II) form, large atmospheric neutrino mixing angle requires b-tau unification.
1403.6448
Pran Nath
Amin Aboubrahim, Tarek Ibrahim and Pran Nath
Probe of New Physics using Precision Measurement of the Electron Magnetic Moment
28 pages, 8 figures. Accepted for publication in Physical Review D. arXiv admin note: text overlap with arXiv:1312.2505
null
10.1103/PhysRevD.89.093016
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The anomalous magnetic moment of the electron is determined experimentally with an accuracy of $2.8\times 10^{-13}$ and the uncertainty may decrease by an order of magnitude in the future. While the current data is in excellent agreement with the standard model, the possible future improvement in the error in $\Delta...
[ { "created": "Tue, 25 Mar 2014 18:39:39 GMT", "version": "v1" }, { "created": "Tue, 6 May 2014 17:15:36 GMT", "version": "v2" } ]
2015-06-19
[ [ "Aboubrahim", "Amin", "" ], [ "Ibrahim", "Tarek", "" ], [ "Nath", "Pran", "" ] ]
The anomalous magnetic moment of the electron is determined experimentally with an accuracy of $2.8\times 10^{-13}$ and the uncertainty may decrease by an order of magnitude in the future. While the current data is in excellent agreement with the standard model, the possible future improvement in the error in $\Delta a...
hep-ph/9808260
Jeannerot
R. Jeannerot (University of Sussex)
Can thermal inflation solve the monopole problem ?
17 pages, uses revtex
Phys.Rev. D59 (1999) 083501
10.1103/PhysRevD.59.083501
SUSX-TH-98-020
hep-ph
null
It is shown that thermal inflation arises naturally in rank greater than five unified theories when non-renormalisable terms are introduced. Thermal inflation is driven by two Higgs fields \Phi_{B-L} and \bar{\Phi}_{B-L} which also break U(1)_{B-L} when acquiring vevs at the end of inflation. The inflationary period ...
[ { "created": "Fri, 7 Aug 1998 12:55:34 GMT", "version": "v1" } ]
2009-10-31
[ [ "Jeannerot", "R.", "", "University of Sussex" ] ]
It is shown that thermal inflation arises naturally in rank greater than five unified theories when non-renormalisable terms are introduced. Thermal inflation is driven by two Higgs fields \Phi_{B-L} and \bar{\Phi}_{B-L} which also break U(1)_{B-L} when acquiring vevs at the end of inflation. The inflationary period pr...
hep-ph/9411257
Cliff Burgess
C.P. Burgess
The Effective Use of Precision Electroweak Measurements
29 pages, latex, 3 figures available on request
Pramana 45 (1995) S47-S71
10.1007/BF02907965
NEIP-94-012, McGill-94/50
hep-ph
null
Several reasonably model-independent formulations of the implications of new physics for precision electroweak measurements have been developed over the past years, most notably by Peskin and Takeuchi, and by Altarelli \etal. These formulations work by identifying a small, but useful, set of parameters through which ...
[ { "created": "Wed, 9 Nov 1994 22:48:32 GMT", "version": "v1" }, { "created": "Wed, 9 Nov 1994 23:06:08 GMT", "version": "v2" } ]
2015-06-25
[ [ "Burgess", "C. P.", "" ] ]
Several reasonably model-independent formulations of the implications of new physics for precision electroweak measurements have been developed over the past years, most notably by Peskin and Takeuchi, and by Altarelli \etal. These formulations work by identifying a small, but useful, set of parameters through which ne...
1909.10459
D. J. Miller
John McDowall, David J Miller
The Multiple Point Principle and Extended Higgs Sectors
Review, 22 pages, 9 figures. Version accepted for publication
null
null
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The Higgs boson quartic self-coupling in the Standard Model appears to become zero just below the Planck scale, with interesting implications to the stability fo the Higgs vacuum at high energies. We review the Multiple Point Principle that suggests the quartic self-coupling should vanish exactly at the Planck scale....
[ { "created": "Mon, 23 Sep 2019 16:27:03 GMT", "version": "v1" } ]
2019-09-24
[ [ "McDowall", "John", "" ], [ "Miller", "David J", "" ] ]
The Higgs boson quartic self-coupling in the Standard Model appears to become zero just below the Planck scale, with interesting implications to the stability fo the Higgs vacuum at high energies. We review the Multiple Point Principle that suggests the quartic self-coupling should vanish exactly at the Planck scale. A...
hep-ph/9811319
Guey-Lin Lin
Guey-Lin Lin and Tzuu-Kang Chyi
Vilkovisky-DeWitt Effective Potential and the Higgs-Mass Bound
ltwol2e.tex, 6 pages; talk presented by G.-L. Lin at ICHEP98, 23-29 July 1998, Vancouver, Canada
null
null
NCTU-HEP-9805
hep-ph
null
We compute the Vilkovisky-DeWitt effective potential of a simplified version of the Standard Electroweak Model, where all charged boson fields as well as the bottom-quark field are neglected. The effective potential obtained in this formalism is gauge-independent. We derive from the effective potential the mass bound...
[ { "created": "Fri, 13 Nov 1998 08:00:16 GMT", "version": "v1" } ]
2007-05-23
[ [ "Lin", "Guey-Lin", "" ], [ "Chyi", "Tzuu-Kang", "" ] ]
We compute the Vilkovisky-DeWitt effective potential of a simplified version of the Standard Electroweak Model, where all charged boson fields as well as the bottom-quark field are neglected. The effective potential obtained in this formalism is gauge-independent. We derive from the effective potential the mass bound o...
1312.5407
Bin Zhu
Ran Ding, Tianjun Li, Florian Staub and Bin Zhu
Focus Point Supersymmetry in Extended Gauge Mediation
23 pages, 7 figures, references added
JHEP 1403 (2014) 130
10.1007/JHEP03(2014)130
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We propose a small extenion of the minimal gauge mediation through the combination of extended gauge mediation and conformal sequestering. We show that the focus point supersymmetry can be realized naturally, and the fine-tuning is signifcantly reduced compared to the minimal gauge mediation and extended gauge mediat...
[ { "created": "Thu, 19 Dec 2013 05:06:38 GMT", "version": "v1" }, { "created": "Sat, 11 Jan 2014 01:53:48 GMT", "version": "v2" } ]
2016-11-25
[ [ "Ding", "Ran", "" ], [ "Li", "Tianjun", "" ], [ "Staub", "Florian", "" ], [ "Zhu", "Bin", "" ] ]
We propose a small extenion of the minimal gauge mediation through the combination of extended gauge mediation and conformal sequestering. We show that the focus point supersymmetry can be realized naturally, and the fine-tuning is signifcantly reduced compared to the minimal gauge mediation and extended gauge mediatio...
2307.15552
Andrea Dubla Dr
Andrea Dubla
Heavy flavors and quarkonia: highlights, open questions, and perspectives
10 pages, 6 figures, Contribution to the proceedings of the 11th International Conference on Hard and Electromagnetic Probes of High Energy Nuclear Collisions (Hard Probes 2023)
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
An overview of the phenomenology and experimental results on open heavy-flavour and quarkonium production in heavy-ion collisions at the RHIC and at the LHC energies is presented, with special emphasis on observables that carry information from the different collision stages. Perspective for future measurements and p...
[ { "created": "Fri, 28 Jul 2023 13:41:12 GMT", "version": "v1" } ]
2023-07-31
[ [ "Dubla", "Andrea", "" ] ]
An overview of the phenomenology and experimental results on open heavy-flavour and quarkonium production in heavy-ion collisions at the RHIC and at the LHC energies is presented, with special emphasis on observables that carry information from the different collision stages. Perspective for future measurements and phe...
1502.05411
Kai Yan
Ilya Feige, Matthew D. Schwartz, Kai Yan
Removing phase-space restrictions in factorized cross sections
32 pages, 1 figure
Phys. Rev. D 91, 094027 (2015)
10.1103/PhysRevD.91.094027
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Factorization in gauge theories holds at the amplitude or amplitude-squared level for states of given soft or collinear momenta. When performing phase-space integrals over such states, one would generally like to avoid putting in explicit cuts to separate soft from collinear momenta. Removing these cuts induces an ov...
[ { "created": "Wed, 18 Feb 2015 21:00:17 GMT", "version": "v1" } ]
2015-06-03
[ [ "Feige", "Ilya", "" ], [ "Schwartz", "Matthew D.", "" ], [ "Yan", "Kai", "" ] ]
Factorization in gauge theories holds at the amplitude or amplitude-squared level for states of given soft or collinear momenta. When performing phase-space integrals over such states, one would generally like to avoid putting in explicit cuts to separate soft from collinear momenta. Removing these cuts induces an over...
1206.2306
Asmaa Abada
A. Abada, A. J. R. Figueiredo, J. C. Romao and A. M. Teixeira
Lepton flavour violation: physics potential of a Linear Collider
30 pages, 48 figures
JHEP 1208 (2012) 138
10.1007/JHEP08(2012)138
LPT-ORSAY-12-17, CFTP-12-006, PCCF-RI-12-04
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We revisit the potential of a Linear Collider concerning the study of lepton flavour violation, in view of new LHC bounds and of the (very) recent developments in lepton physics. Working in the framework of a type I supersymmetric seesaw, we evaluate the prospects of observing seesaw-induced lepton flavour violating ...
[ { "created": "Mon, 11 Jun 2012 18:26:11 GMT", "version": "v1" } ]
2015-03-03
[ [ "Abada", "A.", "" ], [ "Figueiredo", "A. J. R.", "" ], [ "Romao", "J. C.", "" ], [ "Teixeira", "A. M.", "" ] ]
We revisit the potential of a Linear Collider concerning the study of lepton flavour violation, in view of new LHC bounds and of the (very) recent developments in lepton physics. Working in the framework of a type I supersymmetric seesaw, we evaluate the prospects of observing seesaw-induced lepton flavour violating fi...
1410.0476
Xiao-Gang He
Xiao-Gang He, Guan-Nan Li, Dong Xu
SU(3) and Isospin Breaking Effects on B to PPP Amplitudes
RevTex 15 pages, no figure. arXiv, momentum dependent isospin breaking effects added. Version appeared in PRD. arXiv admin note: text overlap with arXiv:1307.7186
null
null
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Several modes of $B$ decays into three pseudoscalar octet mesons PPP have been measured. These decays have provided useful information for B decays in the standard model (SM). Some of powerful tools in analyzing B decays are flavor $SU(3)$ and isospin symmetries. Such analyses are usually hampered by $SU(3)$ breaking...
[ { "created": "Thu, 2 Oct 2014 08:21:32 GMT", "version": "v1" }, { "created": "Thu, 5 Mar 2015 02:06:04 GMT", "version": "v2" } ]
2015-03-06
[ [ "He", "Xiao-Gang", "" ], [ "Li", "Guan-Nan", "" ], [ "Xu", "Dong", "" ] ]
Several modes of $B$ decays into three pseudoscalar octet mesons PPP have been measured. These decays have provided useful information for B decays in the standard model (SM). Some of powerful tools in analyzing B decays are flavor $SU(3)$ and isospin symmetries. Such analyses are usually hampered by $SU(3)$ breaking e...
hep-ph/9906521
Jorge Crispim Romao
J. C. Romao
Yukawa Unification on the Bilinear R-Parity model
8 pages, 4 Figures in Postscript. Talk given at European Network Meeting on Physics Beyond the Standard Model, Trieste, Italy, 24-27 Feb 1999. To appear in the JHEP
null
null
FISIST/9-99/CFIF
hep-ph
null
We discuss gauge and Yukawa unification in the context of a supersymmetric model with bilinear R-parity violation. We show that this model allows $b-\tau$ Yukawa unification for any value of $\tan\beta$ while satisfying perturbativity of the couplings. We also find the $t-b-\tau$ Yukawa unification easier to achieve ...
[ { "created": "Mon, 28 Jun 1999 11:37:41 GMT", "version": "v1" } ]
2007-05-23
[ [ "Romao", "J. C.", "" ] ]
We discuss gauge and Yukawa unification in the context of a supersymmetric model with bilinear R-parity violation. We show that this model allows $b-\tau$ Yukawa unification for any value of $\tan\beta$ while satisfying perturbativity of the couplings. We also find the $t-b-\tau$ Yukawa unification easier to achieve th...
1812.05200
Gilberto Tetlalmatzi-Xolocotzi
Giovanni Banelli, Robert Fleischer, Ruben Jaarsma and Gilberto Tetlalmatzi-Xolocotzi
Probing Lepton Universality with (Semi)-Leptonic B decays
12 pages, 6 figures. To appear in Proceedings for the 15th International Workshop on Tau Lepton Physics
null
null
Nikhef-2018-064
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The most recent measurements of the observables $R_{D^{(*)}}$ are in tension with the Standard Model offering hints of New Physics in $b\rightarrow c \ell \bar{\nu}_{\ell}$ transitions. Motivated by these results, in this work we present an analysis on their $b\rightarrow u \ell \bar{\nu}_{\ell}$ counterparts (for $\...
[ { "created": "Wed, 12 Dec 2018 23:54:39 GMT", "version": "v1" } ]
2018-12-14
[ [ "Banelli", "Giovanni", "" ], [ "Fleischer", "Robert", "" ], [ "Jaarsma", "Ruben", "" ], [ "Tetlalmatzi-Xolocotzi", "Gilberto", "" ] ]
The most recent measurements of the observables $R_{D^{(*)}}$ are in tension with the Standard Model offering hints of New Physics in $b\rightarrow c \ell \bar{\nu}_{\ell}$ transitions. Motivated by these results, in this work we present an analysis on their $b\rightarrow u \ell \bar{\nu}_{\ell}$ counterparts (for $\el...
hep-ph/9908399
Gino Isidori
Gino Isidori
Standard Model vs New Physics in Rare Kaon Decays
12 pages, talk presented at KAON 99 (Chicago, IL, 21-26 Jun 1999)
null
null
LNF-99/022(P)
hep-ph
null
We present a brief overview of rare K decays, emphasizing the different role of Standard Model and possible New Physics contributions in various channels.
[ { "created": "Wed, 18 Aug 1999 14:51:08 GMT", "version": "v1" } ]
2007-05-23
[ [ "Isidori", "Gino", "" ] ]
We present a brief overview of rare K decays, emphasizing the different role of Standard Model and possible New Physics contributions in various channels.
1406.4925
Yueling Yang
Junfeng Sun, Yueling Yang, Qin Chang and Gongru Lu
Phenomenological study of the $B_{c}$ ${\to}$ $BP$, $BV$ decays with perturbative QCD approach
32 pages, 7 figures, revtex4
Phys. Rev. D 89, 114019 (2014)
10.1103/PhysRevD.89.114019
null
hep-ph
http://creativecommons.org/licenses/by/3.0/
Inspired by the recent LHCb measurements and forthcoming great potential on $B_{c}$ meson, we study the exclusive $B_{c}$ ${\to}$ $B_{q}P$, $B_{q}V$ decays with the perturbative QCD approach, where $q$ $=$ $u$, $d$, $s$; $P$ and $V$ denote the lightest pseudoscalar and vector $SU(3)$ nonet meson, respectively. By ret...
[ { "created": "Thu, 19 Jun 2014 00:57:33 GMT", "version": "v1" } ]
2015-06-22
[ [ "Sun", "Junfeng", "" ], [ "Yang", "Yueling", "" ], [ "Chang", "Qin", "" ], [ "Lu", "Gongru", "" ] ]
Inspired by the recent LHCb measurements and forthcoming great potential on $B_{c}$ meson, we study the exclusive $B_{c}$ ${\to}$ $B_{q}P$, $B_{q}V$ decays with the perturbative QCD approach, where $q$ $=$ $u$, $d$, $s$; $P$ and $V$ denote the lightest pseudoscalar and vector $SU(3)$ nonet meson, respectively. By retai...
hep-ph/0211349
Slava Yukalov
V. I. Yukalov and E. P. Yukalova
Self-Similar Structures and Fractal Transforms in Approximation Theory
32 pages, Latex
Chaos Solitons Fractals 14:839-861,2002
10.1016/S0960-0779(02)00029-2
null
hep-ph cond-mat
null
An overview is given of the methods for treating complicated problems without small parameters, when the standard perturbation theory based on the existence of small parameters becomes useless. Such complicated problems are typical of quantum physics, many-body physics, physics of complex systems, and various aspects...
[ { "created": "Fri, 22 Nov 2002 09:49:19 GMT", "version": "v1" } ]
2011-07-19
[ [ "Yukalov", "V. I.", "" ], [ "Yukalova", "E. P.", "" ] ]
An overview is given of the methods for treating complicated problems without small parameters, when the standard perturbation theory based on the existence of small parameters becomes useless. Such complicated problems are typical of quantum physics, many-body physics, physics of complex systems, and various aspects o...
1003.5445
Anurag Tripathi
Neelima Agarwal, V. Ravindran, Vivek Kumar Tiwari, Anurag Tripathi
Next-to-leading order QCD corrections to $W^+W^-$ production at the LHC in Randall Sundrum model
16 pages, 5 figures
Phys.Lett.B690:390-395,2010
10.1016/j.physletb.2010.05.063
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We present next-to-leading order QCD corrections to production of two $W$ bosons at the LHC in the Randall-Sundrum model. Various kinematical distributions are obtained to order $\alpha_s$ in QCD by taking into account all the parton level subprocesses. We estimate the impact of the QCD corrections on various observa...
[ { "created": "Mon, 29 Mar 2010 07:42:01 GMT", "version": "v1" } ]
2014-11-20
[ [ "Agarwal", "Neelima", "" ], [ "Ravindran", "V.", "" ], [ "Tiwari", "Vivek Kumar", "" ], [ "Tripathi", "Anurag", "" ] ]
We present next-to-leading order QCD corrections to production of two $W$ bosons at the LHC in the Randall-Sundrum model. Various kinematical distributions are obtained to order $\alpha_s$ in QCD by taking into account all the parton level subprocesses. We estimate the impact of the QCD corrections on various observabl...
hep-ph/9812321
P. G. Tinyakov
Yu. A. Kubyshin, P. G. Tinyakov
Propagator in the Instanton Background and Instanton-Induced Processes in Scalar Model
16 pages, LaTeX, no figures. One reference and some typos corrected
null
null
talk given at Int. Seminar Quarks-98, Suzdal, Russia, May 18-24, 1998 (to appear in Proceedings)
hep-ph
null
The cross section of the multiparticle scattering processes in the non-perturbative sector of the scalar -lambda * phi^4 model is studied within the semiclassical approximation. For this purpose the exact formula for the residue of the propagator in the instanton background is derived. The exponent of the cross secti...
[ { "created": "Thu, 10 Dec 1998 16:13:32 GMT", "version": "v1" }, { "created": "Thu, 17 Dec 1998 17:18:44 GMT", "version": "v2" } ]
2007-05-23
[ [ "Kubyshin", "Yu. A.", "" ], [ "Tinyakov", "P. G.", "" ] ]
The cross section of the multiparticle scattering processes in the non-perturbative sector of the scalar -lambda * phi^4 model is studied within the semiclassical approximation. For this purpose the exact formula for the residue of the propagator in the instanton background is derived. The exponent of the cross section...
1811.08088
Tanmoy Modak
Tanmoy Modak, Eibun Senaha
Electroweak baryogenesis via bottom transport
matches with published version
Phys. Rev. D 99, 115022 (2019)
10.1103/PhysRevD.99.115022
CTPU-PTC-18-37
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We consider a scenario in which an extra bottom Yukawa coupling can drive electroweak baryogenesis in the general two-Higgs doublet model. It is found that the new bottom Yukawa coupling with $\mathcal{O}(0.1)$ in magnitude can generate the sufficient baryon asymmetry without conflicting existing data. We point out t...
[ { "created": "Tue, 20 Nov 2018 06:44:09 GMT", "version": "v1" }, { "created": "Mon, 3 Dec 2018 07:14:34 GMT", "version": "v2" }, { "created": "Wed, 19 Jun 2019 11:17:34 GMT", "version": "v3" } ]
2019-06-20
[ [ "Modak", "Tanmoy", "" ], [ "Senaha", "Eibun", "" ] ]
We consider a scenario in which an extra bottom Yukawa coupling can drive electroweak baryogenesis in the general two-Higgs doublet model. It is found that the new bottom Yukawa coupling with $\mathcal{O}(0.1)$ in magnitude can generate the sufficient baryon asymmetry without conflicting existing data. We point out tha...
hep-ph/9410323
Philip Page
Philip R. Page
Gluonic Excitations in Heavy Mesons and their Decay by Flux-Tube Breaking
3 pages, LaTeX, to appear in the Proceedings of 'Quark Confinement and the Hadron Spectrum', June 20-23, 1994, Como, Italy, 0 figures, 19 kb
null
null
null
hep-ph
null
We have examined decays of low-lying gluonic excitations of mesons (hybrids) by chromoelectric flux-tube breaking. An analytical calculation of non-relativistic flux-tube model decay amplitudes is performed in an harmonic oscillator approximation. Specific decay signatures of all $J^{PC}$ charmonium hybrids are ident...
[ { "created": "Wed, 19 Oct 1994 18:37:03 GMT", "version": "v1" }, { "created": "Thu, 20 Oct 1994 07:11:54 GMT", "version": "v2" } ]
2008-02-03
[ [ "Page", "Philip R.", "" ] ]
We have examined decays of low-lying gluonic excitations of mesons (hybrids) by chromoelectric flux-tube breaking. An analytical calculation of non-relativistic flux-tube model decay amplitudes is performed in an harmonic oscillator approximation. Specific decay signatures of all $J^{PC}$ charmonium hybrids are identif...
2304.05427
Juuso \"Osterman
Juuso \"Osterman, Philipp Schicho and Aleksi Vuorinen
Integrating by parts at finite density
48 pages, 1 figure, structural revisions and clarifications added, matches published version (v3)
J. High Energ. Phys. 2023, 212 (2023)
10.1007/JHEP08(2023)212
HIP-2023-7/TH
hep-ph hep-th nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Both nonzero temperature and chemical potentials break the Lorentz symmetry present in vacuum quantum field theory by singling out the rest frame of the heat bath. This leads to complications in the application of thermal perturbation theory, including the appearance of novel infrared divergences in loop integrals an...
[ { "created": "Tue, 11 Apr 2023 18:01:11 GMT", "version": "v1" }, { "created": "Tue, 18 Apr 2023 10:24:24 GMT", "version": "v2" }, { "created": "Fri, 8 Sep 2023 09:08:06 GMT", "version": "v3" } ]
2023-09-11
[ [ "Österman", "Juuso", "" ], [ "Schicho", "Philipp", "" ], [ "Vuorinen", "Aleksi", "" ] ]
Both nonzero temperature and chemical potentials break the Lorentz symmetry present in vacuum quantum field theory by singling out the rest frame of the heat bath. This leads to complications in the application of thermal perturbation theory, including the appearance of novel infrared divergences in loop integrals and ...
1111.5936
Umberto De Sanctis
F.Bazzocchi, U. De Sanctis, M. Fabbrichesi, A. Tonero
Quark contact interactions at the LHC
8 pages, 2 figures
null
10.1103/PhysRevD.85.114001
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Quark contact interactions are an important signal of new physics. We introduce a model in which the presence of a symmetry protects these new interactions from giving large corrections in flavor changing processes at low energies. This minimal model provides the basic set of operators which must be considered to con...
[ { "created": "Fri, 25 Nov 2011 10:23:15 GMT", "version": "v1" } ]
2015-06-03
[ [ "Bazzocchi", "F.", "" ], [ "De Sanctis", "U.", "" ], [ "Fabbrichesi", "M.", "" ], [ "Tonero", "A.", "" ] ]
Quark contact interactions are an important signal of new physics. We introduce a model in which the presence of a symmetry protects these new interactions from giving large corrections in flavor changing processes at low energies. This minimal model provides the basic set of operators which must be considered to contr...
1205.0075
Hajime Ishimori Dr.
Hajime Ishimori, Ernest Ma
New Simple A_4 Neutrino Model for Nonzero \theta_{13} and Large \delta_{CP}
12 pages, 8 figures
null
10.1103/PhysRevD.86.045030
UCRHEP-T520
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
In a new simple application of the non-Abelian discrete symmetry $A_4$ to charged-lepton and neutrino mass matrices, we show that for the current experimental central value of $\sin^2 2 \theta_{13} \simeq 0.1$, leptonic CP violation is necessarily large, i.e. $|\tan \delta_{CP}| > 1.3$.
[ { "created": "Tue, 1 May 2012 02:52:20 GMT", "version": "v1" }, { "created": "Sun, 6 May 2012 09:41:22 GMT", "version": "v2" } ]
2013-05-30
[ [ "Ishimori", "Hajime", "" ], [ "Ma", "Ernest", "" ] ]
In a new simple application of the non-Abelian discrete symmetry $A_4$ to charged-lepton and neutrino mass matrices, we show that for the current experimental central value of $\sin^2 2 \theta_{13} \simeq 0.1$, leptonic CP violation is necessarily large, i.e. $|\tan \delta_{CP}| > 1.3$.
1305.6609
Alexander Wijangco
Randel C. Cotta, Arvind Rajaraman, Tim M.P. Tait, Alexander M. Wijangco
Particle Physics Implications and Constraints on Dark Matter Interpretations of the CDMS Signal
16 pages, 6 figures
Phys. Rev. D 90, 013020 (2014)
10.1103/PhysRevD.90.013020
UCI-HEP-TR-2013-10
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recently the CDMS collaboration has reported an excess of events in the signal region of a search for dark matter scattering with Silicon nuclei. Three events on an expected background of 0.4 have a significance of about 2 sigma, and it is premature to conclude that this is a signal of dark matter. Nonetheless, it is...
[ { "created": "Tue, 28 May 2013 20:00:02 GMT", "version": "v1" }, { "created": "Tue, 5 Nov 2013 01:56:22 GMT", "version": "v2" } ]
2014-07-30
[ [ "Cotta", "Randel C.", "" ], [ "Rajaraman", "Arvind", "" ], [ "Tait", "Tim M. P.", "" ], [ "Wijangco", "Alexander M.", "" ] ]
Recently the CDMS collaboration has reported an excess of events in the signal region of a search for dark matter scattering with Silicon nuclei. Three events on an expected background of 0.4 have a significance of about 2 sigma, and it is premature to conclude that this is a signal of dark matter. Nonetheless, it is i...
1402.3620
Hye-Sung Lee
Hooman Davoudiasl, Hye-Sung Lee, William J. Marciano
Muon g-2, Rare Kaon Decays, and Parity Violation from Dark Bosons
More references added
Phys. Rev. D 89, 095006 (2014)
10.1103/PhysRevD.89.095006
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The muon g-2 discrepancy between theory and experiment may be explained by a light vector boson Z_d that couples to the electromagnetic current via kinetic mixing with the photon. We illustrate how the existing electron g-2, pion Dalitz decay, and other direct production data disfavor that explanation if the Z_d main...
[ { "created": "Fri, 14 Feb 2014 23:16:52 GMT", "version": "v1" }, { "created": "Fri, 21 Feb 2014 23:34:12 GMT", "version": "v2" } ]
2014-05-14
[ [ "Davoudiasl", "Hooman", "" ], [ "Lee", "Hye-Sung", "" ], [ "Marciano", "William J.", "" ] ]
The muon g-2 discrepancy between theory and experiment may be explained by a light vector boson Z_d that couples to the electromagnetic current via kinetic mixing with the photon. We illustrate how the existing electron g-2, pion Dalitz decay, and other direct production data disfavor that explanation if the Z_d mainly...
2307.15734
Melissa Van Beekveld
Melissa van Beekveld, Mrinal Dasgupta, Basem Kamal El-Menoufi, Jack Helliwell, Pier Francesco Monni
Collinear fragmentation at NNLL: generating functionals, groomed correlators and angularities
Added numerical checks at fixed-order
null
null
CERN-TH-2023-143, OUTP-23-08P
hep-ph
http://creativecommons.org/licenses/by/4.0/
Jet calculus offers a unique mathematical technique to bridge the area of QCD resummation with Monte Carlo parton showers. With the ultimate goal of constructing next-to-next-to-leading logarithmic (NNLL) parton showers we study, using the language of generating functionals, the collinear fragmentation of final-state...
[ { "created": "Fri, 28 Jul 2023 18:00:01 GMT", "version": "v1" }, { "created": "Tue, 29 Aug 2023 15:07:12 GMT", "version": "v2" }, { "created": "Tue, 23 Apr 2024 15:31:11 GMT", "version": "v3" } ]
2024-04-24
[ [ "van Beekveld", "Melissa", "" ], [ "Dasgupta", "Mrinal", "" ], [ "El-Menoufi", "Basem Kamal", "" ], [ "Helliwell", "Jack", "" ], [ "Monni", "Pier Francesco", "" ] ]
Jet calculus offers a unique mathematical technique to bridge the area of QCD resummation with Monte Carlo parton showers. With the ultimate goal of constructing next-to-next-to-leading logarithmic (NNLL) parton showers we study, using the language of generating functionals, the collinear fragmentation of final-state p...
hep-ph/9508334
null
J.G. K\"orner, K. Melnikov and O.I. Yakovlev
Two -loop $O(G_F{M_H}^2)$ radiative corrections to the Higgs decay width $H \to \gamma \gamma $ for large Higgs boson masses
21 pages, 7 uuencoded figures
Phys.Rev. D53 (1996) 3737-3745
10.1103/PhysRevD.53.3737
MZ-TH-95-18, BudkerINP-95-68
hep-ph
null
This note is devoted to the calculation of the two-loop $O(G_F {M_H}^2)$ radiative corrections to the Higgs decay width $H \to \gamma \gamma $ for large values of the Higgs boson mass $M_H$ within the Minimal Standard Model. The use of the Equivalence Theorem makes it possible to reduce the problem to the considera...
[ { "created": "Mon, 21 Aug 1995 16:30:04 GMT", "version": "v1" } ]
2016-08-15
[ [ "Körner", "J. G.", "" ], [ "Melnikov", "K.", "" ], [ "Yakovlev", "O. I.", "" ] ]
This note is devoted to the calculation of the two-loop $O(G_F {M_H}^2)$ radiative corrections to the Higgs decay width $H \to \gamma \gamma $ for large values of the Higgs boson mass $M_H$ within the Minimal Standard Model. The use of the Equivalence Theorem makes it possible to reduce the problem to the consideration...
hep-ph/9601317
Gerhard Schuler
P. Aurenche (convener), G.A. Schuler (convener), A. Bawa, E. Boudinov, A. Buijs, M. Cacciari, A. Corsetti, W. Da Silva, M. Dubinin, R. Engel, F. Erne, J. Field, A. Finch, J. Forshaw, R. Godbole, J.Ph. Guillet, S.R. Hou, F. Kapusta, B. Kennedy, M.N. Kienzle, M. Kraemer, P. Kroll, E. Laenen, M. Lehto, L. Lonnblad...
Gamma-Gamma Physics at LEP2
58 pages, Latex, gzipped and uuencoded, to appear in the proceedings of the LEP2 workshop
null
null
null
hep-ph
null
This report is an overview of the gamma-gamma physics capabilities of LEP2, and covers the following topics: structure functions, equivalent photon approximation, tagging conditions etc, soft and semihard physics, large-$p_t$ processes, heavy-quark physics, and exclusive channels.
[ { "created": "Tue, 23 Jan 1996 19:33:22 GMT", "version": "v1" } ]
2007-05-23
[ [ "Aurenche", "P.", "", "convener" ], [ "Schuler", "G. A.", "", "convener" ], [ "Bawa", "A.", "" ], [ "Boudinov", "E.", "" ], [ "Buijs", "A.", "" ], [ "Cacciari", "M.", "" ], [ "Corsetti", "A.", "" ...
This report is an overview of the gamma-gamma physics capabilities of LEP2, and covers the following topics: structure functions, equivalent photon approximation, tagging conditions etc, soft and semihard physics, large-$p_t$ processes, heavy-quark physics, and exclusive channels.
1201.3949
Michael Sarrazin
Michael Sarrazin, Guillaume Pignol, Fabrice Petit, Valery V. Nesvizhevsky
Experimental limits on neutron disappearance into another braneworld
7 pages, 2 figures, 1 table. Published in Physics Letters B
Phys.Lett. B712 (2012) 213
10.1016/j.physletb.2012.04.069
null
hep-ph nucl-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Recent theoretical works have shown that matter swapping between two parallel braneworlds could occur under the influence of magnetic vector potentials. In our visible world, galactic magnetism possibly produces a huge magnetic potential. As a consequence, this paper discusses the possibility to observe neutron disap...
[ { "created": "Thu, 19 Jan 2012 00:00:48 GMT", "version": "v1" }, { "created": "Mon, 30 Apr 2012 18:03:19 GMT", "version": "v2" }, { "created": "Mon, 14 May 2012 22:34:41 GMT", "version": "v3" } ]
2012-05-16
[ [ "Sarrazin", "Michael", "" ], [ "Pignol", "Guillaume", "" ], [ "Petit", "Fabrice", "" ], [ "Nesvizhevsky", "Valery V.", "" ] ]
Recent theoretical works have shown that matter swapping between two parallel braneworlds could occur under the influence of magnetic vector potentials. In our visible world, galactic magnetism possibly produces a huge magnetic potential. As a consequence, this paper discusses the possibility to observe neutron disappe...
1811.05125
Arvind Kumar
Harpreet Singh, Arvind Kumar and Harleen Dahiya
In-medium masses and magnetic moments of decuplet baryons
18 pages and 3 figures
null
null
null
hep-ph nucl-th
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
The magnetic moments of baryon decuplet are studied in vacuum as well as in the symmetric nuclear matter at finite temperature using a chiral SU(3) quark mean field model approach. The contributions coming from the valence quarks, quark sea and the orbital angular momentum of the quark sea have been considered to cal...
[ { "created": "Tue, 13 Nov 2018 06:36:23 GMT", "version": "v1" } ]
2018-11-14
[ [ "Singh", "Harpreet", "" ], [ "Kumar", "Arvind", "" ], [ "Dahiya", "Harleen", "" ] ]
The magnetic moments of baryon decuplet are studied in vacuum as well as in the symmetric nuclear matter at finite temperature using a chiral SU(3) quark mean field model approach. The contributions coming from the valence quarks, quark sea and the orbital angular momentum of the quark sea have been considered to calcu...
1909.00592
Reza Jafari
Reza Jafari, Parvin Eslami, Mojtaba Mohammadi Najafabadi and Hamzeh Khanpour
Constraining the top quark effective field theory using the top quark pair production in association with a jet at future lepton colliders
20 pages, 2 table, 7 figures, Accepted for publication in Physics Letters B
Physics Letters B 806 (2020) 135469
10.1016/j.physletb.2020.135469
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Our main aim in this paper is to constrain the effective field theory describing the top quark couplings through the $e^{-} e^{+} \rightarrow t \bar{t}+$jet process. The analysis is carried out considering two different center-of-mass energies of 500 and 3000 GeV including a realistic simulation of the detector respo...
[ { "created": "Mon, 2 Sep 2019 08:23:09 GMT", "version": "v1" }, { "created": "Sun, 17 May 2020 14:53:09 GMT", "version": "v2" } ]
2020-05-22
[ [ "Jafari", "Reza", "" ], [ "Eslami", "Parvin", "" ], [ "Najafabadi", "Mojtaba Mohammadi", "" ], [ "Khanpour", "Hamzeh", "" ] ]
Our main aim in this paper is to constrain the effective field theory describing the top quark couplings through the $e^{-} e^{+} \rightarrow t \bar{t}+$jet process. The analysis is carried out considering two different center-of-mass energies of 500 and 3000 GeV including a realistic simulation of the detector respons...
1303.1324
Dong-Won Jung
Dong-Won Jung, P. Ko, and Jae Sik Lee
Mass and rapidity dependent top quark forward-backward asymmetry in the effective Lagrangian approach
To appear in the proceedings of Top 2012, 5th International Workshop on Top Quark Physics, September 16-21, 2012, Winchester, U.K
null
10.1088/1742-6596/452/1/012051
null
hep-ph hep-ex
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
We study the invariant mass and rapidity dependent top quark forward-backward asymmetry from the effective Lagrangian viewpoint. The Wilson coefficients are constrained by the experimental observations and the concrete models that reproduce the low energy effective Lagaragians are considered. Some of them are disfavo...
[ { "created": "Wed, 6 Mar 2013 13:04:51 GMT", "version": "v1" } ]
2015-06-15
[ [ "Jung", "Dong-Won", "" ], [ "Ko", "P.", "" ], [ "Lee", "Jae Sik", "" ] ]
We study the invariant mass and rapidity dependent top quark forward-backward asymmetry from the effective Lagrangian viewpoint. The Wilson coefficients are constrained by the experimental observations and the concrete models that reproduce the low energy effective Lagaragians are considered. Some of them are disfavore...
hep-ph/0105138
Joao Pacheco B. C. de Melo
J.P.B.C. de Melo (IFUSP, Sao Paulo, Brazil) and Tobias Frederico (ITA, CTA, Sao Jose dos Campos, Brazil)
Rho meson form-factors in the null-plane phenomenology
8 pages, 3 figures, use latex,revtex
International Workshop on Hadrons Physics 96, Topics on the Structure and Interaction of Hadronic Systems, Brazil
null
null
hep-ph
null
The constituent quark rho meson electromagnetic form-factors are calculated, with covariant and null-plane approaches with the same model. The null-plane formalism produces the breakdown of the rotational symmetry for the one-body current operador, wich is investigated by comparing the numerical results in both appro...
[ { "created": "Tue, 15 May 2001 12:29:48 GMT", "version": "v1" } ]
2007-05-23
[ [ "de Melo", "J. P. B. C.", "", "IFUSP, Sao Paulo, Brazil" ], [ "Frederico", "Tobias", "", "ITA,\n CTA, Sao Jose dos Campos, Brazil" ] ]
The constituent quark rho meson electromagnetic form-factors are calculated, with covariant and null-plane approaches with the same model. The null-plane formalism produces the breakdown of the rotational symmetry for the one-body current operador, wich is investigated by comparing the numerical results in both approac...
hep-ph/0503073
Zhi-Gang Wang
Zhi-Gang Wang, Shao-Long Wan, Wei-Min Yang
Magnetic moment of the pentaquark $\Theta^+(1540) $ with light-cone QCD sum rules
10 pages, 1 figure. The main contents of this article is included in hep-ph/0503007, this article will not be submitted to a journal for publication
J.Phys.G31:703-710,2005
10.1088/0954-3899/31/7/015
null
hep-ph
null
In this article, we study the magnetic moment of the pentaquark state $ \Theta^+(1540)$ as diquark-diquark-antiquark ($[ud][ud]\bar{s}$) state in the framework of the light-cone QCD sum rules approach. The numerical results indicate the magnetic moment of the pentaquark state $ \Theta^+(1540)$ is about $\mu_{\Theta^+...
[ { "created": "Tue, 8 Mar 2005 11:21:46 GMT", "version": "v1" }, { "created": "Wed, 29 Jun 2005 02:56:13 GMT", "version": "v2" } ]
2008-11-26
[ [ "Wang", "Zhi-Gang", "" ], [ "Wan", "Shao-Long", "" ], [ "Yang", "Wei-Min", "" ] ]
In this article, we study the magnetic moment of the pentaquark state $ \Theta^+(1540)$ as diquark-diquark-antiquark ($[ud][ud]\bar{s}$) state in the framework of the light-cone QCD sum rules approach. The numerical results indicate the magnetic moment of the pentaquark state $ \Theta^+(1540)$ is about $\mu_{\Theta^+}=...
0901.0241
Paul Langacker
Paul Langacker
Introduction to the Standard Model and Electroweak Physics
Lectures presented at TASI2008. 45 pages, 14 figures, 5 tables
null
10.1142/9789812838360_0001
null
hep-ph
http://arxiv.org/licenses/nonexclusive-distrib/1.0/
A concise introduction is given to the standard model, including the structure of the QCD and electroweak Lagrangians, spontaneous symmetry breaking, experimental tests, and problems.
[ { "created": "Fri, 2 Jan 2009 14:47:14 GMT", "version": "v1" } ]
2017-08-23
[ [ "Langacker", "Paul", "" ] ]
A concise introduction is given to the standard model, including the structure of the QCD and electroweak Lagrangians, spontaneous symmetry breaking, experimental tests, and problems.