The Circular Electron Positron Collider

XinChou Lou describes the plans for the Circular Electron Positron Collider, a large accelerator complex that would be built in China.

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Fig. 1: Schematic of the Circular Electron Positron Collider (CEPC) and Super proton–proton Collider (SppC) layout.


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The author thanks Y. Wang, J. Gao, and Q. Xu for insightful discussions, the CEPC study group for the knowledge this Comment is based on and M. Lou for editorial assistance. The author acknowledges the support of Chinese Academy of Science Special Grant for Large Scientific Project (113111KYSB20170005), CAS Center for Excellence in Particle Physics, Beijing Municipal Science & Technology Commission (project no. Z181100004218003) and University of Texas at Dallas.

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Correspondence to XinChou Lou.

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ATLAS collaboration, projections for measurements of Higgs boson signal strengths and coupling parameters with the ATLAS detector at a HL-LHC:

CMS collaboration, projected performance of an upgraded CMS detector at the LHC and HL-LHC: contribution to the snowmass process:

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Lou, X. The Circular Electron Positron Collider. Nat Rev Phys 1, 232–234 (2019).

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