On Massive High Spin Particles in (A)dS

TL;DR

This paper develops a gauge invariant framework for analyzing massive high spin particles in (A)dS spaces, confirming previous conjectures and reproducing known results for spins 2 and 3.

Contribution

It introduces a general gauge invariant formulation for massive particles of any integer spin in arbitrary dimensions, extending previous work and confirming recent conjectures.

Findings

Reproduces known results for spins 2 and 3 in (A)dS.

Constructs a gauge invariant formalism for arbitrary spin s.

Confirms conjecture by Deser and Waldron for d=4.

Abstract

In this Letter we consider the problem of partial masslessness and unitarity in (A)dS using gauge invariant description of massive high spin particles. We show that for S = 2 and S = 3 cases such formalism allows one correctly reproduce all known results. Then we construct a gauge invariant formulation for massive particles of arbitrary integer spin s in arbitrary space-time dimension d. For d = 4 our results confirm the conjecture made recently by Deser and Waldron.