On the Foundations of Chiral Perturbation Theory
High Energy Physics - Phenomenology
2009-10-22 v1
Abstract
The properties of the effective field theory relevant for the low energy structure generated by the Goldstone bosons of a spontaneously broken symmetry are reexamined. It is shown that anomaly free, Lorentz invariant theories are characterized by a gauge invariant effective Lagrangian, to all orders of the low energy expansion. The paper includes a discussion of anomalies and approximate symmetries, but does not cover nonrelativistic effective theories.
Keywords
Cite
@article{arxiv.hep-ph/9311274,
title = {On the Foundations of Chiral Perturbation Theory},
author = {H. Leutwyler},
journal= {arXiv preprint arXiv:hep-ph/9311274},
year = {2009}
}
Comments
52 pages, BUTP-93/24