Cargando…

An analytic analysis of the pion decay constant in three-flavoured chiral perturbation theory

A representation of the two-loop contribution to the pion decay constant in SU(3) chiral perturbation theory is presented. The result is analytic up to the contribution of the three (different) mass sunset integrals, for which an expansion in their external momentum has been taken. We also give an a...

Descripción completa

Detalles Bibliográficos
Autores principales: Ananthanarayan, B., Bijnens, Johan, Ghosh, Shayan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5586975/
https://www.ncbi.nlm.nih.gov/pubmed/28943799
http://dx.doi.org/10.1140/epjc/s10052-017-5019-y