Speaker
Beijiang Liu
Description
Using the world’s largest samples of J/psi and psi(3686) events produced in e+e- annihilation, BESIII is uniquely positioned to study light hadrons in radiative and hadronic charmonium decays. In particular, exotic hadron candidates including multiquark states, hybrid mesons and glueballs can be studied in high detail. Recent highlights on the light exotics searches, including observation of an iso-scalar spin-exotic 1-+ state η1(1855) in J/ψ→γηη′, observation of X(2600) in J/ψ→γπ+π-η′, observation of the anomalous shape of X(1840) J/ψ→γ3(π+π-), and amplitude analysis of J/ψ→γγphi will be presented.
