Redundance of $\Delta$-isobar Parameters in Effective Field Theories
High Energy Physics - Phenomenology
2015-06-25 v2 Nuclear Theory
Abstract
It is shown that the off-shell parameters in the interaction Lagrangian of pions, nucleons, and -isobars are redundant in the framework of effective field theories. Our results also suggest the necessity of including the as an explicit dynamical degree of freedom.
Keywords
Cite
@article{arxiv.hep-ph/9606432,
title = {Redundance of $\Delta$-isobar Parameters in Effective Field Theories},
author = {Hua-Bin Tang and Paul J. Ellis},
journal= {arXiv preprint arXiv:hep-ph/9606432},
year = {2015}
}
Comments
11 pages, RevTex, no figures, a minor error corrected, to appear in PLB