Light-cone formalism for a point particle in a higher-spin background

TL;DR

This paper develops a light-cone formalism to analyze the motion of a point particle within a massless higher-spin background, deriving the particle action and Poincare charges at leading order.

Contribution

It introduces a light-cone gauge approach for point particles in higher-spin backgrounds and compares it with covariant methods, providing new computational tools.

Findings

Derived the point particle action in a higher-spin background.

Calculated phase space Poincare charges at leading order.

Compared light-cone results with covariant approaches.

Abstract

We study propagation of a point particle in a massless higher-spin background employing the light-cone gauge approach. We find the point particle action and the associated phase space Poincare charges at the leading order in higher-spin fields. We also compare our results with the analogous covariant results available in the literature.