Glueball decay patterns in top-down holographic QCD

TL;DR

This paper uses a holographic QCD model to analyze scalar glueball decay patterns, finding that experimental data favors interpreting the $f_0(1710)$ as a nearly unmixed glueball over the $f_0(1500)$.

Contribution

It provides the first holographic QCD-based predictions for scalar glueball decay patterns and compares them with experimental data to identify the most likely glueball candidate.

Findings

Experimental data disfavors $f_0(1500)$ as a glueball.

Data is consistent with $f_0(1710)$ being a nearly unmixed glueball.

Holographic model makes specific predictions for future experiments.

Abstract

We discuss our results on scalar glueball decay in the top-down holographic Witten-Sakai-Sugimoto model for low-energy QCD and compare with available experimental data, which appear to disfavor the glueball candidate $f_0(1500)$ but seem to be perfectly consistent with interpreting $f_0(1710)$ as a nearly unmixed glueball. The holographic model moreover makes definite predictions for future experiments.