Unitarity of Singh-Hagen model in D dimensions
Abstract
The particle content of the Singh-Hagen model (SH) in D dimensions is revisited. We suggest a complete set of spin-projection operators acting on totally symmetric rank-3 fields. We give a general expression for the propagator and determine the coefficients of the SH model confirming previous results of the literature. Adding totally symmetric source terms we provide an unitarity analysis in D dimensions.
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