Infrared regularization of baryon chiral perturbation theory reformulated

Abstract

We formulate the infrared regularization of Becher and Leutwyler in a form analogous to our recently proposed extended on-mass-shell renormalization. In our formulation, IR regularization can be applied straightforwardly to multi-loop diagrams with an arbitrary number of particles with arbitrary masses.

Comments: 10 pages, ReVTEX 4, no figures