Study of the dilepton electromagnetic decays of Xuan-He Wang, Yue Jiang, Tianhong Wang, Xiao-Ze Tan, Geng Li and Guo-Li WangEur. Phys. J. C, 79 12 (2019) 997DOI: https://doi.org/10.1140/epjc/s10052-019-7531-8