Recent BES results on charmonium decays

TL;DR

This paper reviews recent experimental results on various charmonium decays from the BES experiment, including leptonic, hadronic, and radiative channels, based on a large data sample.

Contribution

It provides new measurements of charmonium decay modes and explores rare or forbidden decays, enhancing understanding of quarkonium behavior.

Findings

Measured leptonic and hadronic decay rates of psi(2S)

Observed hadronic decays of chi_cJ states

Set limits on rare or forbidden J/psi decays

Abstract

In this talk, we present the recent results on charmonium decays from the BES experiment at the BEPC collider. The analyses are based on a 14 million psi(2S) events data sample. We report results on leptonic decays, hadronic decays, and radiative decays of psi(2S), as well as hadronic decays of chi_cJ states and rare or forbidden decays of J/psi.