On gauge fixing in the Lagrangian formalism of superfield BRST quantization

TL;DR

This paper introduces a modified gauge-fixing procedure in superfield BRST quantization that generalizes the BV scheme, ensuring gauge independence of the S-matrix and establishing a superfield BRST symmetry.

Contribution

It presents a novel gauge-fixing method in superfield BRST quantization that extends the BV scheme and demonstrates gauge independence of physical quantities.

Findings

Proposed a new gauge-fixing procedure for superfield BRST quantization.

Established a superfield form of BRST symmetry for the vacuum functional.

Proved the gauge-independence of the S-matrix.

Abstract

We propose a modification of the gauge-fixing procedure in the Lagrangian method of superfield BRST quantization for general gauge theories which simultaneously provides a natural generalization of the well-known BV quantization scheme as far as gauge-fixing is concerned. A superfield form of BRST symmetry for the vacuum functional is found. The gauge-independence of the S-matrix is established.