Recent Results of psi(2S) Decays at BES

TL;DR

This paper reports measurements of various psi(2S) decay modes using BES data, comparing results with theoretical predictions to enhance understanding of charmonium decays.

Contribution

It provides new experimental measurements of psi(2S) decay channels and compares them with existing theoretical models.

Findings

Measured decay rates for psi(2S) -> VT and K_long K_short

Measured chi_cJ -> Baryon anti-Baryon decay rates

Results show agreement or discrepancies with theoretical predictions

Abstract

Using 14 million psi(2S) data sample collected with BES at BEPC, psi(2S)-> VT, K_long K_short(also J/psi -> K_long K_short), and chi_cJ -> Baryon anti-Baryon decays are measured and compared with theoretical model predications.