CEPC 2025 International Workshop Successfully Held in Barcelona (2025-07-07)

From June 16 to 19, the Circular Electron-Positron Collider (CEPC) 2025 International Workshop was successfully held in Barcelona, Spain. The meeting was jointly organized by the Institute for High Energy Physics of Spain (IFAE) and the Institute of High Energy Physics of the Chinese Academy of Sciences (IHEP). A total of 208 experts and scholars from 42 research institutions across 14 countries and regions participated in the event, discussing the latest progress and future plans of the CEPC project.

CEPC is a large-scale scientific infrastructure for particle physics research initiated by Chinese scientists with multinational participation. Its core objectives include exploring the properties of the Higgs boson, discovering new physics, and revealing the nature of dark matter, among other major scientific frontiers. Once completed, CEPC will become a new flagship facility in the field of particle physics research. The CEPC Accelerator Technical Design Report (TDR) was officially released in December 2023 and received high praise from the international review committee. In January 2024, CEPC accelerator research entered the Engineering Design Report (EDR) phase, and the project has achieved significant milestones in key technologies related to accelerators and detectors.

At this conference, Academician Yifang Wang presented a report on "The Construction of China's Large Scientific Facilities," Researcher Jie Gao delivered the "Progress Report on CEPC Accelerator EDR," and Researcher Jianchun Wang presented the "CEPC Physics and Reference Detector Technical Design Report." These reports reviewed the development of China's large scientific facilities, summarized the current achievements of the CEPC team, and outlined the next phase of work. The CEPC Reference Detector Design Report has undergone multiple international reviews since 2024 and is now in its final stages, scheduled for official release in the second half of this year.

During the workshop, participants engaged in in-depth discussions on various topics, including the physics potential of CEPC, accelerator technology, detector development, software tools, high-performance computing, and international cooperation. The conference particularly encouraged the participation of graduate students and postdoctoral researchers, providing a platform for young scholars to present their research achievements and interact with international peers.

Group photo of CEPC 2025 International Workshop participants

CEPC 2025 International Workshop participants during discussion session