On the axial-vector form factor of the nucleon and chiral symmetry

Abstract We consider the chiral Lagrangian with nucleon, isobar, and pion degrees of freedom. The baryon masses and the axial-vector form factor of the nucleon are derived at the one-loop level. We explore the impact of using on-shell baryon masses in the loop expressions. As compared to results fro...

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Bibliographic Details
Main Authors: Matthias F. M. Lutz, Ulrich Sauerwein, Rob G. E. Timmermans
Format: Article
Language:English
Published: SpringerOpen 2020-09-01
Series:European Physical Journal C: Particles and Fields
Online Access:http://link.springer.com/article/10.1140/epjc/s10052-020-8417-5