8–14 Mar 2015
Tatranska Lomnica, Slovakia
Europe/Bratislava timezone

Recents results on charmonium-like states at BESIII

10 Mar 2015, 18:00
25m
Tatranska Lomnica, Slovakia

Tatranska Lomnica, Slovakia

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Speaker

Myroslav Kavatsyuk (KVI-CART, University of Groningen)

Description

Despite the successes of the Standard Model, the QCD-based nature of the strong interaction is insufficiently understood. Charmonium spectroscopy is an ideal tool to provide insight into the non-perturbative dynamics of the strong force. It provides rigorous guidelines to various theoretical approaches, thereby, gaining insight into quark confinement and the formation of hadronic matter. The charmonium system has been systematically studied with the BESIII spectrometer operated at the BEPCII electron-positron collider at IHEP Beijing, China. The world’s largest data set of charmonium states produced at the J/ψ, ψ′ and ψ′′ masses, allows precision studies of hadronic states. Moreover, systematic measurements in the mass range between 3.85 and 4.6 GeV/c^2 opened up the possibility of studying “X, Y, Z” states. These measurements recently resulted in the discovery of indisputable examples of multi-quark hadrons in the charmonium mass regime. A complete understanding of the properties of these unconventional charmonium-like states will give insight into the dynamics of the strong force. In particular a systematic study of the various decay modes of these states and their excitation pattern will potentially reveal their dynamics. During the presentation, I will present a few highlights of the most recent BESIII results.

Primary author

Myroslav Kavatsyuk (KVI-CART, University of Groningen)

Presentation materials