Regular Article - Theoretical Physics
Massive and massless spin-1 particles with gauge symmetry without Stueckelberg fields
UNESP, Campus de Guaratinguetá, DFQ, Avenida Doutor Ariberto Pereira da Cunha, 333, CEP, 12516-410, Guaratinguetá, SP, Brazil
* e-mail: email@example.com
Revised: 27 July 2012
Published online: 6 September 2012
In order to generate mass for an abelian spin-1 vector field while preserving gauge invariance we couple it to a symmetric tensor. The derivative coupling includes up to three derivatives. We show that unitarity, causality and absence of Stueckelberg (compensating) fields single out a unique model up to trivial field redefinitions. The model contains one massive and one massless spin-1 particle. It is shown by means of a master action to be dual to the direct sum of a Maxwell plus a Maxwell–Proca theory.
© Springer-Verlag Berlin Heidelberg and Società Italiana di Fisica, 2012