Frame-Like Action and Unfolded Formulation for Massive Higher-Spin Fields

TL;DR

This paper develops unfolded equations and a gauge-invariant action for massive higher-spin bosonic fields in Minkowski and (A)dS spaces, providing a systematic framework for their description.

Contribution

It introduces a novel unfolded formulation and gauge-invariant action for symmetric massive higher-spin fields in various dimensions.

Findings

Unfolded equations of motion for massive higher-spin fields are derived.

A manifestly gauge-invariant action is constructed in terms of gauge invariant curvatures.

The framework applies to any spin and dimension in Minkowski and (A)dS spaces.

Abstract

Unfolded equations of motion for symmetric massive bosonic fields of any spin in Minkowski and (A)dS spaces are presented. Manifestly gauge invariant action for a spin $s \ge 2$ massive field in any dimension is constructed in terms of gauge invariant curvatures.