Prediction of a missing higher charmonium around 4.26 GeV in familyLi-Ping He, Dian-Yong Chen, Xiang Liu and Takayuki MatsukiEur. Phys. J. C, 74 12 (2014) 3208DOI: https://doi.org/10.1140/epjc/s10052-014-3208-5