English

Charmonium in China: BEPCII/BESIII

High Energy Physics - Experiment 2019-08-14 v1

Abstract

Results based on 106 M ψ\psi' events and about 226 M J/ψJ/\psi events acquired with the BESIII detector at BEPCII are reported, including a confirmation of the BESII ppˉp\bar{p} threshold enhancement in J/ψγppˉJ/\psi \to \gamma p\bar{p}, branching ratios for χcJπ0π0\chi_{cJ} \to \pi^0 \pi^0 and ηη\eta \eta, and first measurements of the branching ratios for ψπ0hc\psi' \to \pi^0 h_c and hcγηch_c \to \gamma \eta_c, as well as measurements of the mass and width of the hch_c. Also reported are first observations of the two photon process ψγγJ/ψ\psi' \to \gamma \gamma J/\psi and f0(980)a0(980)f_0(980) - a_0(980) mixing.

Keywords

Cite

@article{arxiv.1008.3569,
  title  = {Charmonium in China: BEPCII/BESIII},
  author = {Frederick A. Harris},
  journal= {arXiv preprint arXiv:1008.3569},
  year   = {2019}
}

Comments

Plenary talk at Meson2010, Krakow, Poland, June 10 - 15, 2010; 5 pages, 4 figures