Hadron structure in manifestly Lorentz-invariant baryon chiral perturbation theory

Abstract

We briefly outline the so-called extended on-mass-shell renormalization scheme for manifestly Lorentz-invariant baryon chiral perturbation theory which provides a simple and consistent power counting for renormalized diagrams. We comment on the role of chiral symmetry in the renormalization program and discuss as applications the mass and the electromagnetic form factors of the nucleon.

9 pages, Latex2e, 3 eps figures. Invited talk given by S. Scherer at the International Workshop XXXII on Gross Properties of Nuclei and Nuclear Excitations: Probing Nuclei and Nucleons with Electrons and Photons, Hirschegg, Austria, January 11 - 17, 2004