Study of the XYZ states at the BESIII |
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Authors: | Chang-Zheng Yuan |
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Affiliation: | Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China |
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Abstract: | With its unique data samples at energies of 3.8–4.6 GeV, the BESIII experiment made a significant contribution to the study of charmonium and charmonium-like states, i.e., the XYZ states.We review the results for observations of the Zc(3900) and Zc(4020) states, the X(3872) in e+e− annihilation, and charmonium ψ(13D2) state, as well as measurements of the cross-sections of ωχcJ and ηJ/ψ, and the search for e+e−→ γχcJ and γY (4140). We also present data from BESIII that may further strengthen the study of the XYZ and conventional charmonium states, and discuss perspectives on future experiments. |
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Keywords: | charmonium exotic states e+e− annihilation hadronic transitions radiative transtitions |
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