Hadron production in $\psi$, $\eta_c$ and $\chi$ decays

TL;DR

This paper derives relations among decay probabilities of charmonium states to light mesons, using factorization and flux-tube models, to explore hybrid meson production in these decays.

Contribution

It introduces a theoretical framework connecting charmonium decay branching fractions with flux-tube models to predict hybrid meson production.

Findings

Derived relations among decay branching fractions.

Assessed hybrid meson production prospects.

Provided theoretical predictions for experimental searches.

Abstract

We derive relations among branching fractions in the exclusive decay of charmonia to light flavour meson pairs assuming factorization between the quark spin and spatial degrees of freedom. With the further assumption that these amplitudes can be described by flux-tube models, we assess prospects for production of hybrid mesons in charmonium decays.