The Structure of the Non-SUSY Baryonic Branch of Klebanov-Strassler

TL;DR

This paper explores the space of non-supersymmetric supergravity solutions related to the baryonic branch of Klebanov-Strassler, revealing connections to known solutions and identifying a new non-supersymmetric generalization.

Contribution

It characterizes the structure of non-SUSY deformations of the baryonic branch, including new solution families and their relation to supersymmetric cases.

Findings

Identified a one-dimensional family of non-SUSY solutions generalizing Klebanov-Strassler.

Found solutions connecting to softly-broken N=1 solutions and fully non-SUSY limits.

Evidence suggests much of the supersymmetric structure persists in non-SUSY deformations.

Abstract

We study the two-dimensional space of supergravity solutions corresponding to non-supersymmetric deformations of the baryonic branch of Klebanov-Strassler. By combining analytical methods with a numerical survey of the parameter space, we find that this solution space includes as limits the softly-broken N=1 solutions of Gubser et al. and those of Dymarsky and Kuperstein. We also identify a one-dimensional family of solutions corresponding to a natural non-supersymmetric generalisation of Klebanov-Strassler, and one corresponding to the limit in which supersymmetry is completely absent, even in the far UV. For almost all of the parameter space we find indications that much of the structure of the supersymmetric baryonic branch survives.