Baryon chiral perturbation theory

Abstract

We provide an introduction to the power-counting issue in baryon chiral perturbation theory and discuss some recent developments in the manifestly Lorentz-invariant formulation of the one-nucleon sector. As explicit applications we consider the chiral expansion of the nucleon mass, its convergence properties, and calculations of the electromagnetic and axial form factors of the nucleon.

Comments: Invited plenary talk given at the 6th International Workshop on Chiral Dynamics, July 6-10, 2009, Bern, Switzerland