1. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
2. State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China
3. Research Center for Hadron and CSR Physics, Institute of Modern Physics of CAS and Lanzhou University, Lanzhou 730000, China
4. Department of Physics, Zhengzhou University, Zhengzhou, Henan 450001, China
5. Special Research Center for the Subatomic Structure of Matter (CSSM), School of Chemistry and Physics, University of Adelaide Adelaide 5005, Australia