Infrared regularization with spin-3/2 fields
High Energy Physics - Phenomenology
2009-11-10 v1 High Energy Physics - Theory
Nuclear Theory
Abstract
We present a Lorentz-invariant formulation of baryon chiral perturbation theory including spin-3/2 fields. Particular attention is paid to the projection on the spin-3/2 components of the delta fields. We also discuss the nucleon mass and the pion-nucleon sigma term.
Cite
@article{arxiv.hep-ph/0303198,
title = {Infrared regularization with spin-3/2 fields},
author = {Véronique Bernard and Thomas R. Hemmert and Ulf-G. Meißner},
journal= {arXiv preprint arXiv:hep-ph/0303198},
year = {2009}
}
Comments
9 pp, 1 fig