Darmstadt 2016 – wissenschaftliches Programm

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PV: Plenarvorträge

PV VIII

PV VIII: Hauptvortrag

Freitag, 18. März 2016, 09:45–10:15, S1/01 A1

Charmonium(like) Spectroscopy — •Zhiqing Liu — Johannes Gutenberg University Mainz, Mainz, Germany

Since its discovery in 1974, charmonium spectroscopy has always been an important probe to study strong interactions and the structure of hadronic matter. Below open-charm threshold, the charmonium spectrum is well established now. Also our understanding of charmonium states above the open-charm threshold has seen a big progress during recent years. However, the most surprising was the discovery of charmoniumlike states, which have a similar mass scale as charmonium states but can not be classified as conventional states easily. Indeed, charmoniumlike states are good candidates for the so-called exotic hadron states, i.e. particles with a quark content different from normal mesons and baryons, such as multi-quark states, hybrid states or molecule states. Although neutral charmoniumlike states are more difficult to be identified, the observation of charged states provide us a convincing evidence. In this talk, I'll review the recent progress on charmonium and charmoniumlike spectroscopy from BESIII, Belle, BABAR, CLEO-c and LHCb and the prospect for future experiments at Belle II and PANDA.