China Unveils a Conceptual Design Report for their Next-Generation Particle Collider

China has unveiled a Conceptual Design Report (CDR) marking the next stage of their plans to develop a next-generation particle collider.

Geoffrey Taylor from Australia’s University of Melbourne and the chair of the International Committee for Future Accelerators said during an international workshop in Beijing that this marks a significant milestone along the way to such a vital facility for fundamental physics.

Construction of the Circular Electron-Positron Collider (CEPC) should begin in 2022 and be completed in 2030.

Gao Yuanning, chair of the CEPC Institutional Board, stated that the CDR indicates that they have completed the basic design of the accelerator, detector, and civil engineering for the whole project. Thus, their next step will be aimed at the R&D of critical technologies and prototypes for the CEPC.

The entire report is available to the public. Volume I outlines the design of the accelerator complex while Volume II describes the physics and details the detector concepts and technological options.

The new supercollider is designed to complement and go beyond the physics of the Large Hadron Collider (LHC) in Switzerland. It is thought to be an essential part of the global plan for high-energy physics research and will back a comprehensive research program by scientists globally.

Chinese scientists suggested the facility in September 2012, only two months after the discovery of the Higgs boson at the LHC.

The CEPC will sit in an underground tunnel with a 100-kilometre circumference, and has been described as a “Higgs factory.” A planned second phase will incorporate what has been termed a Super Proton-Proton Collider, focused on new physics that goes beyond the Standard Model.

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Jessica Zeitz