Comment on the paper Generalized version of chiral Schwinger model in terms of chiral bosonization, Eur.Phys.J.C 81 (2021) 3, 199

TL;DR

This paper critiques a previous work on the generalized chiral Schwinger model, highlighting errors in its calculations for generic parameters and clarifying the conditions under which the results are physically valid.

Contribution

It provides a critical analysis of the earlier paper, identifying specific parameter regimes where the previous results are correct or invalid.

Findings

Errors in the previous calculations for generic r

Valid results only for r=0, r=±1, and r>>1

Clarification of physically acceptable parameter regimes

Abstract

The results and calculations of the article \cite{SY} is found erroneous for a generic $r$ and it remains irremediable in general. However for $r=0$, $r=\pm 1$, and $r >> 1$ it may be physically acceptable.