Hadronic contribution to light-by-light scattering ingμ−2

Autor: Martin B. Einhorn
Rok vydání: 1994
Předmět:
Zdroj: Physical Review D. 49:1668-1671
ISSN: 0556-2821
DOI: 10.1103/physrevd.49.1668
Popis: We comment on the theoretical uncertainties involved in estimating the hadronic effects on the light-by-light scattering contribution to the anomalous magnetic moment of the muon, especially based on the analysis and results of Kinoshita, Ni[hacek z]ic, and Okamoto. From the point of view of an effective field theory and chiral perturbation theory, we suggest that the charged pion contribution may be better determined than has been appreciated. However, the neutral pion contribution needs greater theoretical insight before its magnitude can be reliably estimated.
Databáze: OpenAIRE