26-31 July 2021
Mexico City
Mexico/General timezone
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Mexico City -
Hadron Decays, Production and Interactions

Production of chi_c1 in e+ e- collision


  • Tong LIU

Primary authors


Up to now, the production of resonances in electron-positron annihilation has only been observed for states with quantum numbers JPC = 1−−. The direct production of the 1++ states could happen through two-photon or neutral current. Due to the smallness of the production rate, this process has never been observed experimentally. With the high luminosity and good performance of the BESIII experiment, a search of the direct production of chi_c1 has been performed