On-shell consistency of the Rarita-Schwinger field formulation
High Energy Physics - Theory
2009-08-26 v1 High Energy Physics - Phenomenology
Nuclear Theory
Abstract
We prove that any bilinear coupling of a massive spin-3/2 field can be brought into a gauge invariant form suggested by Pascalutsa by means of a non-linear field redefinition. The corresponding field transformation is given explicitly in a closed form and the implications for chiral effective field theory with explicit Delta (1232) isobar degrees of freedom are discussed.
Keywords
Cite
@article{arxiv.0812.0132,
title = {On-shell consistency of the Rarita-Schwinger field formulation},
author = {H. Krebs and E. Epelbaum and U. -G. Meißner},
journal= {arXiv preprint arXiv:0812.0132},
year = {2009}
}
Comments
9 pages, 1 figure