Speaker
Beijiang Liu
Description
Hadron spectroscopy is one of the most important physics goals of BESIII. BESIII brings great opportunities to study the XYZ states of charmonium by directly producing the Y states up to 4.6 GeV. We focus on the investigation of XYZ states and the discovery of new charged charmonium-like structures. Two isospin triplets Z(3900) and Z(4020) have been discovered, decaying into J/psi pi and hc pi, respectively. Structures with compatible parameters have been found decaying to DD and DD*, respectively.
Furthermore, we have investigated the new transitions between charmonium states, e.g. Y(4260)->gamma X(3872).
