Invariant amplitudes for virtual compton scattering off polarized nucleons free from kinematical singularities, zeros and constraints
TLDR
A complete set of independent gauge-invariant and Lorentz-covariant tensors which carry the maximal amount of kinematics and which are either even or odd under the discrete symmetries and crossing is given for virtual-photon scattering off polarized nucleons.Abstract:
A complete set of independent gauge-invariant and Lorentz-covariant tensors which carry the maximal amount of kinematics and which are either even or odd under the discrete symmetries and crossing is given for virtual-photon scattering off polarized nucleons. The remaining kinematics is explicitly shown in the amplitudes. A great variety of different processes of physical interest may be described with this set by taking the adequate limits. The possible connections among these different limits are now open.read more
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Journal ArticleDOI
The anomalous magnetic moment of the muon in the Standard Model
T. Aoyama,Nils Asmussen,M. Benayoun,Johan Bijnens,Tom Blum,M. Bruno,I. Caprini,C. M. Carloni Calame,Marco Cè,Marco Cè,Marco Cè,Gilberto Colangelo,F. Curciarello,Henryk Czyz,I. Danilkin,M. Davier,Christine Davies,M. Della Morte,S.I. Eidelman,Aida X. El-Khadra,Aida X. El-Khadra,Antoine Gérardin,D. Giusti,Maarten Golterman,Steven Gottlieb,V. Gülpers,Franziska Hagelstein,Masashi Hayakawa,Gregorio Herdoiza,D. W. Hertzog,A. Hoecker,Martin Hoferichter,Martin Hoferichter,B.-L. Hoid,Renwick J. Hudspith,Renwick J. Hudspith,F. Ignatov,Taku Izubuchi,Fred Jegerlehner,Luchang Jin,A. Keshavarzi,T. Kinoshita,T. Kinoshita,Bastian Kubis,A. Kupich,A. Kupść,Laetitia Laub,Christoph Lehner,Christoph Lehner,Laurent Lellouch,I.B. Logashenko,Bogdan Malaescu,Kim Maltman,Kim Maltman,Marina Marinkovic,Marina Marinkovic,Pere Masjuan,Aaron S. Meyer,Harvey B. Meyer,Harvey B. Meyer,T. Mibe,K. Miura,K. Miura,K. Miura,Stefan E. Müller,M. Nio,D. Nomura,Andreas Nyffeler,Vladimir Pascalutsa,M. Passera,E. Perez del Rio,Santiago Peris,Antonin Portelli,Massimiliano Procura,C. F. Redmer,B. L. Roberts,Pablo Sanchez-Puertas,S. I. Serednyakov,B.A. Shwartz,Silvano Simula,D. Stöckinger,H. Stöckinger-Kim,Peter Stoffer,Thomas Teubner,R. S. Van de Water,Marc Vanderhaeghen,Marc Vanderhaeghen,G. Venanzoni,G. von Hippel,Hartmut Wittig,Hartmut Wittig,Zhiqing Zhang,M.N. Achasov,A. Bashir,Nuno Cardoso,Bipasha Chakraborty,E.-H. Chao,J. Charles,Andreas Crivellin,Andreas Crivellin,O. Deineka,A. Denig,A. Denig,Carleton DeTar,Cesareo A. Dominguez,A. E. Dorokhov,V. P. Druzhinin,Gernot Eichmann,M. Fael,Christian S. Fischer,Elvira Gamiz,Z. Gelzer,Jeremy Green,S. Guellati-Khelifa,D. Hatton,Nils Hermansson-Truedsson,S. Holz,B. Hörz,M. Knecht,Jonna Koponen,Andreas S. Kronfeld,Jack Laiho,S. Leupold,P. B. Mackenzie,W. J. Marciano,Craig McNeile,Daniel Mohler,Daniel Mohler,J. Monnard,Ethan T. Neil,A. V. Nesterenko,Konstantin Ottnad,Vladyslav Pauk,A. E. Radzhabov,E. de Rafael,K. Raya,Andreas Risch,Antonio Rodríguez-Sánchez,Pablo Roig,T. San José,T. San José,E. P. Solodov,Robert L. Sugar,K. Yu. Todyshev,Arkady Vainshtein,A. Vaquero Avilés-Casco,Esther Weil,Jonas Wilhelm,Richard Williams,A. S. Zhevlakov +149 more
TL;DR: The current status of the Standard Model calculation of the anomalous magnetic moment of the muon is reviewed in this paper, where the authors present a detailed account of recent efforts to improve the calculation of these two contributions with either a data-driven, dispersive approach, or a first-principle, lattice approach.
Journal ArticleDOI
Longitudinal short-distance constraints for the hadronic light-by-light contribution to (g − 2)μ with large-Nc Regge models
Gilberto Colangelo,Franziska Hagelstein,Martin Hoferichter,Martin Hoferichter,Laetitia Laub,Peter Stoffer +5 more
TL;DR: In this paper, the authors considered a tower of excited pseudoscalars, constraining their masses and transition form factors from Regge theory, the OPE, and phenomenology.
Journal ArticleDOI
Baryons as relativistic three-quark bound states
TL;DR: In this paper, the spectrum and electromagnetic properties of baryons described as relativistic three-quark bound states within QCD are discussed from a theoretical perspective, focusing on nonperturbative QCD as encoded in the functional approach via Dyson-Schwinger and Bethe-Salpeter equations.
Journal ArticleDOI
Baryons as relativistic three-quark bound states
TL;DR: In this article, the spectrum and electromagnetic properties of baryons described as relativistic three-quark bound states within QCD are discussed from a theoretical perspective, focusing on nonperturbative QCD as encoded in the functional approach via Dyson-Schwinger and Bethe-Salpeter equations.
Journal ArticleDOI
Dispersion relation for hadronic light-by-light scattering: pion pole
TL;DR: In this article, the pion-pole contribution to light-by-light scattering in the anomalous magnetic moment of the muon (g − 2)μ is fully determined by the doubly-virtual pion transition form factor.
References
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TL;DR: In this paper, the perturbation formulas for Compton scattering with radiative corrections are written as dispersion relations, and it is shown that one subtraction is needed to obtain dispersion relation which contain only physical quantities, but these equations still depend on the fictitious mass of the photon.
Journal ArticleDOI
Mesure de la polarisation des electrons relativistes
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