Speaker
Jingzhi Zhang
(IHEP)
Description
We present the recent results on charmonium spectroscopy and charmonium decays based on a data sample of 106M psi' recorded with the BESIII detector at BEPCII. The report includes:
1, The first measurement of the transition rates of psi'-->pi0 h_c, h_c-->gamma eta_c, and improved measurements of the mass and width of the h_c;
2, Study of $\chi_{cJ} \to VV$, with VV being \phi\phi, \omega\omega, and \omega\phi, $\chi_cJ \to \omega\phi$ as well as $\chi_c1\to \omega\omega$ and $\phi\phi$ are first observations;
3, Improved measurements of the branching fractions of $\chi_{cJ}$ decays into two neutral pseudoscalar meson pairs, including $\chi_{c0,2}\to \pi^0 \pi^0$ and $\chi_{c0,2}\to \eta \eta)$.
Primary author
Jingzhi Zhang
(IHEP)
