München 2019 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 40: Hadron Structure and Spectroscopy VI
HK 40.6: Talk
Wednesday, March 20, 2019, 18:00–18:15, HS 13
Study of Light Mesons in Two-Photon Interactions at BESIII — •Jiaqi Li — Ruhr-Universität Bochum, Germany
The BESIII experiment at the symmetric electron-positron collider BEPCII in Beijing has recorded large data samples at center of mass energies between 2 and 4.6 GeV. The experiment is well suited to study the production of light mesons in two-photon interactions.
Two-photon physics provides an excellent opportunity to study light mesons with quantum numbers such as 0±+ and 2±+. The γγ width of resonances can be determined from two-photon processes, which is an important measurement to understand the nature of some resonances like a2(1320) and η(1405), which are discussed to be exotic particles.
Recent results and future prospects will be presented in this contribution.
This work is supported by the DFG (FOR 2359).