1. Institute of Nuclear and Particle Physics, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
2. Department of Engineering Physics, Tsinghua University, Beijing, China
3. Department of Modern Physics and the State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China (USTC), Hefei, China
4. Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, China