The M5-brane action revisited

TL;DR

This paper presents a new formulation of the M5-brane action that employs a covariant 3+3 split of the worldvolume, connecting it to previous models and volume-preserving diffeomorphism symmetries.

Contribution

It introduces an alternative M5-brane action with a covariant 3+3 split, linking it to existing formulations and Nambu-Poisson models.

Findings

New covariant 3+3 split M5-brane action constructed

Connections established with original and Nambu-Poisson M5-brane models

Enhanced understanding of gauge symmetries in M5-brane theories

Abstract

We construct an alternative form of the M5-brane action in which the six-dimensional worldvolume is subject to a covariant split into 3+3 directions by a triplet of auxiliary fields. We consider the relation of this action to the original form of the M5-brane action and to a Nambu-Poisson 5-brane action based on the Bagger-Lambert-Gustavsson model with the gauge symmetry of volume preserving diffeomorphisms