Correspondence of consistent and inconsistent spin-3/2 couplings via the equivalence theorem
High Energy Physics - Phenomenology
2009-10-31 v2 High Energy Physics - Theory
Nuclear Theory
Abstract
The Rarita-Schwinger theory of free massive spin-3/2 field obeys the physical degrees of freedom counting, and one can distinguish ``consistent'' couplings which maintain this property and ``inconsistent'' couplings which destroy it. We show how one can obtain consistent couplings from inconsistent ones by a redefinition of the spin-3/2 field. The field redefinition gives rise to additional ``contact terms'' which, via the equivalence theorem, can be associated with the contribution of the extra lower-spin degrees of freedom involved by the inconsistent coupling.
Keywords
Cite
@article{arxiv.hep-ph/0008026,
title = {Correspondence of consistent and inconsistent spin-3/2 couplings via the equivalence theorem},
author = {V. Pascalutsa},
journal= {arXiv preprint arXiv:hep-ph/0008026},
year = {2009}
}
Comments
RevTeX, 10 pages, 2 figures; text and references substantially revised, formulae unchanged