Co-sponsored by IHEP and the U.S. Department of Energy, the Workshop on Physics at the CEPC (Circular Electron Positron Collider) was held at IHEP on August 10-12, 2015.   

The workshop attendees were about 100 scholars from Peking University, Tsinghua University, Shanghai Jiaotong University, Nankai University, Wuhan University, the Chinese University of Hong Kong and IHEP, the U.S. DOE and its national laboratories SLAC, BNL, ANL and LBNL, CERN, Princeton University, the University of Toronto, the University of Arizona, Harvard University and Tel Aviv University.   

Wang Yifang, Director of IHEP, addressed the workshop by warmly welcoming the guests. Experts from CEPC, ILC and FOC gave talks respectively on the status and progress of their projects. The attendees explored and discussed possible and potential issues concerning CEPC physics. The workshop got many talks from physicists at home on their most recent research results, which would constitute a sound basis for CEPC conceptual design and would greatly push cultivation of talents and construction of teams at home.   

The world famous theoretician and the Basic Physics Prize Winner Dr. Nima Arkani-Hamed delivered a talk on the prospects of high energy physics. He deemed that one of the aims of high energy physics research would be the discovery of new phenomenon of profound impact, just like that of the Michelson-Morley Experiment. He encouraged the attendees to unite and make joint efforts to push forward programs of high precision and high energy frontiers, the dream of the high energy physics community.