Recent results from BESIII

Abstract

Using about $226\times 10^6$ $\jpsi$ events and $106\times 10^6$ ${\psi }^{\prime }$ events collected with the BESIII detector at the BEPCII $e^{+}{e}^{-}$ collider, the Dalitz plot of $\etap \to ηπ^+ π^-$ decay is studied, the direct measurement of $a_0^0(980)-f_0(980)$ mixing is performed, $X(2120)$ and $X(2370)$ are observed in the ${\pi }^{+}{\pi }^{-}{\eta }^{\prime }$ invariant mass spectrum, ${\psi }^{\prime }\to \gamma {\pi }^0$ and ${\psi }^{\prime }\to \gamma \eta$ are observed for the first time, and the decays ${\chi }_{cJ}\to \gamma V$ ($V=\varphi$, ${\rho }^0$, $\omega$) are studied.

arXiv comment6 pages, 2 figures. Proceedings for "The Xth Nicola Cabibbo International Conference on Heavy Quarks and Leptons, October 11-15 2010, Frascati, Rome, Italy"