1. Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People’s Republic of China, National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, People’s Republic of China, Theoretical Physics Center for Science Facilities, Chinese Academy of Sciences, Beijing 100049, People’s Republic of China, and College of Energy and Environmental Engineering, Beijing University of Technology, Beijing 100022,...