Chiral perturbation theory
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
After a general introduction to the structure of effective field theories, the main ingredients of chiral perturbation theory are reviewed. Applications include the light quark mass ratios and pion-pion scattering to two-loop accuracy. In the pion-nucleon system, the linear sigma model is contrasted with chiral perturbation theory. The heavy-nucleon expansion is used to construct the effective pion-nucleon Lagrangian to third order in the low-energy expansion, with applications to nucleon Compton scattering.
Cite
@article{arxiv.hep-ph/9608226,
title = {Chiral perturbation theory},
author = {Gerhard Ecker},
journal= {arXiv preprint arXiv:hep-ph/9608226},
year = {2007}
}
Comments
36 pages, Latex, 4 figures embedded with epsfig.sty. To appear in Proc. of 5th Workshop on Hadron Physics, Angra dos Reis, RJ, Brazil, April 1996