# 25th International Workshop on Deep Inelastic Scattering and Related Topics

Apr 3 – 7, 2017
University of Birmingham
Europe/London timezone

## New $X$, $Y$, and $Z$ results from BESIII

Apr 5, 2017, 2:18 PM
18m
West Building Lecture Theatre

#### West Building Lecture Theatre

WG5) Physics with Heavy Flavours

### Speaker

Myroslav Kavatsyuk (KVI, University of Groningen)

### Description

BESIII has collected about 9 pb$^{-1}$ electron positron annihilation sample at 4.0–4.6 GeV. With this large sample, new searches for exotic states and precise studies of line-shape during this energy region are performed. We present the measurements of cross sections with final states $\pi^{+} \pi^{-} \psi(2S)$, $K \bar{K} J/\psi$, $\pi^{+} \pi^{-} h_{c}$, $\pi^{+} \pi^{-} J/\psi$, $\gamma \eta_{c}$, $\eta Y(2175)$, and $\pi^{0} \pi^{0} \psi(2S)$, and corresponding interpretations of observed structures are discussed.