On New Forms of the BRST Transformations

TL;DR

This paper introduces a systematic method to derive novel forms of BRST transformations by identifying symmetries in the gauge fixed action involving Lagrange multipliers and their canonical momenta.

Contribution

It presents a new approach to generate alternative BRST transformations based on symmetries in the gauge fixed sector, expanding the theoretical framework.

Findings

New BRST transformation forms derived systematically

Symmetries identified in the sector with Lagrange multipliers

Method applicable to generic gauge fixed actions

Abstract

We show how to derive systematically new forms of the BRST transformations for a generic gauge fixed action. They arise after a symmetry of the gauge fixed action is found in the sector involving the Lagrange multiplier and its canonical momentum.