N* and Meson Resonances in J/psi decays

TL;DR

This paper discusses the analysis of N* and meson resonances observed in J/psi decays, highlighting recent experimental results from the BES Collaboration at BEPC for understanding light hadron spectroscopy.

Contribution

It presents new experimental data on excited nucleons and meson resonances from J/psi decays, advancing knowledge of light hadron spectroscopy.

Findings

Observation of various N* and hyperon resonances

Evidence for possible glueball and hybrid mesons

Enhanced understanding of light hadron spectrum

Abstract

Over sixty million J/psi events have been collected by the BES Collaboration at the Beijing Electron-Positron Collider (BEPC). J/psi decays provide an excellent place for studying excited nucleons and hyperons -- N*, $\Lambda^*$, $\Sigma^*$ and $\Xi^*$ resonances, as well as meson resonances, including possible glueballs and hybrids. Physics objectives, recent results and future prospects of light hadron spectroscopy at BEPC are presented.