Gauge invariance for the massive axion

Abstract

Gauge invariance for the massive axion (Khoudeir, Adel; Arias, Pío José)

Abstract

A massive gauge invariant formulation for scalar Φ and antisymmetric (Cmnp) fields with a topological coupling, which provides a mass for the axion field, is considered. The dual and local equivalence with the non-gauge invariant proposal is established, but on manifolds with non-trivial topological structure both formulations are not globally equivalent.