The eta' in baryon chiral perturbation theory

Preprint

12 January 2000

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/0001102

Abstract

We include in a systematic way the eta' in baryon chiral perturbation theory. The most general relativistic effective Lagrangian describing the interaction of the lowest lying baryon octet with the Goldstone boson octet and the eta' is presented up to linear order in the derivative expansion and its heavy baryon limit is obtained. As explicit examples, we calculate the baryon masses and the pi N sigma-term up to one-loop order in the heavy baryon formulation. A systematic expansion in the meson masses is possible, and appearing divergences are renormalized.

Keywords

CHIRAL PERTURBATION THEORY
BARYON CHIRAL PERTURBATION
RELATIVISTIC EFFECTIVE
PERTURBATION THEORY
LINEAR ORDER
ETA

All Related Versions

Version 1, 2000-01-12, ArXiv
Published version: Physical Review D, 61 (1), 014011.

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