Effective Field Theory of the Single-Nucleon Sector

TL;DR

This paper develops a consistent power counting scheme for Lorentz-invariant baryon chiral perturbation theory, includes vector mesons in nucleon form factor calculations, and discusses the chiral expansion of the nucleon mass up to order O(q^6).

Contribution

It introduces a novel power counting scheme and incorporates vector mesons into the chiral perturbation theory framework for nucleons.

Findings

Established a consistent power counting scheme.

Successfully included vector mesons in form factor calculations.

Analyzed nucleon mass expansion up to order O(q^6).

Abstract

We address the issue of a consistent power counting scheme in manifestly Lorentz-invariant baryon chiral perturbation theory. We discuss the inclusion of vector mesons in the calculation of the nucleon electromagnetic form factors. We comment on the chiral expansion of the nucleon mass to order O(q**6).