The Delta(1232) Resonance in Chiral Effective Field Theory
Nuclear Theory
2008-11-26 v1
Abstract
I discuss the problem of formulating the baryon chiral perturbation theory (PT) in the presence of a light resonance, such as the , the lightest nucleon resonance. It is shown how to extend the power counting of PT to correctly account for the resonant contributions. Recent applications of the resulting chiral effective-field theory to the description of pion production reactions in -resonance region are briefly reviewed.
Keywords
Cite
@article{arxiv.0712.3919,
title = {The Delta(1232) Resonance in Chiral Effective Field Theory},
author = {Vladimir Pascalutsa},
journal= {arXiv preprint arXiv:0712.3919},
year = {2008}
}
Comments
8 pages, 8 figs; prepared for the proceedings of the Intl Erice School ``Quarks in Hadrons and Nuclei'', 29th Course, 16--24 Sep 2007, Sicily, Italy