Single meson contributions to the muon’s anomalous magnetic moment

We develop the formalism to provide an improved estimate for the hadronic light-by-light correction to the muon’s anomalous magnetic moment a μ , by considering single meson contributions beyond the leading pseudoscalar mesons. We incorporate available experimental input as well as constraints from...

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Bibliographic Details
Published inThe European physical journal. C, Particles and fields Vol. 74; no. 8; pp. 1 - 8
Main Authors Pauk, Vladyslav, Vanderhaeghen, Marc
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.08.2014
Springer
Subjects
Astronomy
Astrophysics and Cosmology
Elementary Particles
Estimates
Formalism
Hadrons
Heavy Ions
Magnetic moment
Mathematical analysis
Measurement Science and Instrumentation
Mesons
Muons
Nuclear Energy
Nuclear Physics
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Regular Article - Theoretical Physics
Scalars
String Theory
Texts
Pseudoscalar Meson
Transition Form Factor
Tensor Meson
Scalar Meson
Virtual Photon
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Summary:We develop the formalism to provide an improved estimate for the hadronic light-by-light correction to the muon’s anomalous magnetic moment a μ , by considering single meson contributions beyond the leading pseudoscalar mesons. We incorporate available experimental input as well as constraints from light-by-light scattering sum rules to estimate the effects of axial-vector, scalar, and tensor mesons. We give numerical evaluations for the hadronic light-by-light contribution of these states to a μ . The presented formalism allows one to further improve on these estimates, once new data for such meson states will become available.
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ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-014-3008-y