# Massive higher spin fields in the frame-like multispinor formalism

## TL;DR

This paper develops a gauge invariant, frame-like formalism for describing massive higher spin particles in (A)dS4, including their Lagrangian, gauge invariants, and unitarity, with applications to supersymmetry.

## Contribution

It introduces a comprehensive gauge invariant framework for massive higher spin fields in (A)dS4 using multispinor formalism, facilitating supersymmetry research.

## Key findings

- Constructed gauge invariant objects for higher spin fields.
- Rewrote Lagrangian in terms of gauge invariants.
- Analyzed unitarity and partially massless limits.

## Abstract

In this paper, a gauge invariant description of massive higher spin bosonic and fermionic particles in frame-like Lagrangian and unfolded formalism in (A)dS${}_4$ is built. A complete set of gauge invariant object is also constructed and the Lagrangian is rewritten in terms of these objects. The unitarity of the theories is studied alongside with the partially massless limits. The calculations are carried out in the multispinor formalism, which simplifies them and is particularly convenient for the supersymmetry studies.