Sigma Model Corrections to the Confining Background

TL;DR

This paper computes sigma model ($^{ ext{'}}}$) corrections to a confining string background, showing the Poincare9 invariance persists and analyzing conditions for removing naked singularities.

Contribution

It provides the first explicit calculation of $^{ ext{'}}}$ corrections in a confining background, maintaining Poincare9 invariance.

Findings

Poincare9 invariant ansatz remains valid after corrections

Conditions for the disappearance of naked singularities are identified

Corrections influence the structure of the confining background

Abstract

Sigma model ($\alpha^{\prime}$) corrections to the confining string background are obtained. The main result is that the Poincar\'e invariant ansatz is maintained. Physical conditions for the dissapearance of the naked singularity are discussed.