Heavy Hybrid Decays in a Constituent Gluon Model

TL;DR

This paper develops a constituent gluon model based on lattice field theory to compute hybrid meson decay widths, providing predictions that upcoming experiments at GlueX and PANDA can test.

Contribution

The paper introduces a new constituent gluon model informed by lattice data to predict hybrid meson decay widths, aiding experimental validation.

Findings

Decay widths are generally large, except for the lightest hybrid S-wave multiplet.

Selection rules and model limitations are discussed.

Model predictions will be tested by upcoming GlueX and PANDA data.

Abstract

A constituent gluon model that is informed by recent lattice field theory is developed. The model is then used to compute hybrid strong decay widths, that can be useful for the GlueX collaboration at Jefferson Lab and the PANDA collaboration at FAIR. Commensurately, forthcoming data from GlueX and PANDA will test the model. Widths tend to be large except for those of the lightest hybrid $S$-wave multiplet. Selection rules, extensions, limitations, and applications are discussed.