Screening Currents Ward Identity and Integral Formulas for the WZNW Correlation Functions

TL;DR

This paper derives integral formulas for WZNW correlation functions using Wakimoto realization, demonstrating the role of screening currents Ward identity and providing a simplified proof of earlier results.

Contribution

It introduces new integral formulas for WZNW correlation functions and clarifies the role of screening currents Ward identity with explicit examples.

Findings

Integral formulas for WZNW correlation functions derived.

Explicit examples demonstrating the screening currents Ward identity.

Simplified proof of a previous key result provided.

Abstract

We derive, based on the Wakimoto realization, the integral formulas for the WZNW correlation functions. The role of the ``screening currents Ward identity'' is demonstrated with explicit examples. We also give a more simple proof of a previous result.