On I-even Singlet Glueballs in the Klebanov-Strassler Theory

TL;DR

This paper analyzes I-even vector fluctuations in the Klebanov-Strassler supergravity background, identifying invariant states that complete the spectrum of low-energy singlet supermultiplets, including a new 1++ state.

Contribution

It provides a detailed study of I-even vector fluctuations, identifying a new singlet state and completing the low-energy supermultiplet spectrum in the Klebanov-Strassler theory.

Findings

Identified a new 1++ glueball state.

Completed the spectrum of low-energy singlet supermultiplets.

Analyzed vector fluctuations invariant under SU(2)x SU(2).

Abstract

In this note we study vector fluctuations over the Klebanov-Strassler type IIB supergravity solution that are even under the I-conjugation. We are interested only in the states invariant under the global SU(2)x SU(2) symmetry. Apart from the glueball dual to the R-current there is one more 1++ state, which is a member of a massive vector multiplet containing also a scalar 0++. Combined with previous results, our analysis allows to complete the list of low energy singlet supermultiplets in the Klebanov-Strassler theory.