Affiliation: | [1]School of Physics, and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871 [2]School of Physical Science and Technology, Southwest University, Chongqing 400715 [3]School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191 [4]Department of Physics, University of Stellenbosch, Stellenbosch, South Africa |