Analysis of the radiative decays among the charmonium states

TL;DR

This paper uses heavy quark effective theory to analyze radiative decays among charmonium states, predicting decay width ratios to aid future experimental identification of exotic mesons.

Contribution

It provides theoretical predictions for decay width ratios among charmonium states, aiding the identification of $X$, $Y$, $Z$ mesons and guiding future experiments.

Findings

Predicted ratios of radiative decay widths between multiplets.

Framework for constraining charmonium-like mesons.

Potential to distinguish exotic states in experiments.

Abstract

In this article, we study the radiative decays among the charmonium states with the heavy quark effective theory, and make predictions for the ratios among the radiative decay widths of an special multiplet to another multiplet. The predictions can be confronted with the experimental data in the future and put additional constraints in identifying the $X$, $Y$, $Z$ charmonium-like mesons.