Recent Psi(2S) Results at BES

TL;DR

This paper presents recent results on $\psi'$, $\chi_{cJ}$, and $\eta_c$ particles from BES, based on a large dataset, and compares some findings with NRQCD predictions.

Contribution

It provides new experimental measurements of charmonium states at BES and compares them with theoretical NRQCD calculations.

Findings

Measurements of $\psi'$, $\chi_{cJ}$, and $\eta_c$ properties

Comparison of experimental results with NRQCD predictions

Enhanced understanding of charmonium states

Abstract

Based on $(3.79\pm0.31)\times10^6 ~\psi'$ data sets collected with the BES detector at BEPC, the recent $\psi'$, $\chi_{cJ}$ and $\eta_c$ results from BES are presented. Some results are compared with NRQCD.