On higher spin cubic interactions in d=3

TL;DR

This paper explores higher spin cubic interactions across massless, massive, and partially massless fields in three dimensions, using a gauge-invariant multispinor formalism that combines Lagrangian and unfolded approaches.

Contribution

It introduces a comprehensive gauge-invariant multispinor formalism for analyzing higher spin cubic interactions in d=3, unifying different mass regimes.

Findings

Developed a gauge-invariant formalism for higher spin interactions

Unified treatment of massless, massive, and partially massless fields

Provided insights into the structure of cubic interactions in three dimensions

Abstract

In this paper we elaborate on higher spin cubic interactions for massless, massive and partially massless fields. We work in the gauge invariant frame-like multispinor formalism, combining Lagrangian and unfolded formulations.