Is Heavy Baryon Approach Necessary?

Preprint

7 October 1999

preprint
Published by arXiv in arXiv

Abstract

On the simple model of interacting massless pseudoscalar and heavy fermion fields it is demonstrated that using appropriately chosen renormalization condition one can respect power counting within the relativistic theory without applying the technique of heavy baryon approach. Explicit calculations are performed for diagrams including two-loops. It is argued that the introduction of the heavy baryon chiral perturbation theory was useful but unnecessary.

Keywords

MASSLESS PSEUDOSCALAR
HEAVY BARYON APPROACH
INTERACTING MASSLESS
PERTURBATION THEORY
APPROACH NECESSARY
SIMPLE MODEL
CHIRAL

All Related Versions

Version 1, 1999-10-07, ArXiv
Version 2, 2000-07-12, ArXiv
Published version: Journal of Physics G: Nuclear and Particle Physics, 29 (9), 2303.

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