Study of $e^+e^- → π^+ π^- J/ψ$ and Observation of a Charged Charmoniumlike State at Belle

Liu, Z. Q.Z. Q.LiuYEE HSIUNGPAO-TI CHANGMIN-ZU WANGPISIN CHEN2018-09-102018-09-102013-03http://inspirehep.net/record/1225975http://scholars.lib.ntu.edu.tw/handle/123456789/379448Study of $e^+e^- → π^+ π^- J/ψ$ and Observation of a Charged Charmoniumlike State at Bellejournal article10.1103/PhysRevLett.110.252002