On the Nature of X(4260)

TL;DR

This paper re-analyzes experimental data on the X(4260) resonance, considering coupled channel effects, revealing a significant coupling to omega chi_c0 and estimating its electronic width.

Contribution

It provides a comprehensive re-analysis of X(4260) data including coupled channel interactions, offering new insights into its coupling strengths and decay properties.

Findings

Significant coupling between X(4260) and omega chi_c0

Estimated electronic width of X(4260) as 23.30±3.55 eV

Enhanced understanding of X(4260) decay channels

Abstract

We study the property of $X(4260)$ resonance by re-analyzing all experimental data available, especially the $e^+e^- \rightarrow J/\psi\,\pi^+\pi^-,\,\,\,\omega\chi_{c0}$ cross section data. The final state interactions of the $\pi\pi$, $K\bar K$ couple channel system are also taken into account. A sizable coupling between the $X(4260)$ and $\omega\chi_{c0}$ is found. The inclusion of the $\omega\chi_{c0}$ data indicates a small value of $\Gamma_{e^+e^-}=23.30\pm 3.55$eV.