Top-down Holographic Glueball Decay Rates

TL;DR

This paper uses a top-down holographic model to predict decay rates of scalar and tensor glueballs, comparing results with experimental data for specific gluon candidate particles.

Contribution

It provides semi-quantitative predictions for glueball decay patterns using the Witten-Sakai-Sugimoto model with minimal free parameters.

Findings

Predicted decay widths align semi-quantitatively with experimental data.

Model accurately reproduces vector meson spectrum and gluon condensate.

Holographic predictions support f0(1500) and f0(1710) as glueball candidates.

Abstract

We present new results on the decay patterns of scalar and tensor glueballs in the top-down holographic Witten-Sakai-Sugimoto model. This model, which has only one free dimensionless parameter, gives semi-quantitative predictions for the vector meson spectrum, their decay widths, and also a gluon condensate in agreement with SVZ sum rules. The holographic predictions for scalar glueball decay rates are compared with experimental data for the widely discussed gluon candidates f0(1500) and f0(1710).