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arXiv · 2505.24810

New Physics Search at the CEPC: a General Perspective

Xiaocong Ai·Stefan Antusch·Peter Athron·Yunxiang Bai·Shou-Shan Bao·Daniele Barducci·Xiao-Jun Bi·Tianji Cai·Lorenzo Calibbi·Junsong Cang·Junjie Cao·Wei Chao·Boping Chen·Gang Chen·Long Chen·Mingshui Chen·Shanzhen Chen·Xiang Chen·Huajie Cheng·Huitong Cheng·Yaodong Cheng·Kingman Cheung·Min-Huan Chu·João Barreiro Guimarães da Costa·Xinchen Dai·Arindam Das·Zhi-fu Deng·Frank F. Deppisch·P. S. Bhupal Dev·Yabo Dong·Marco Drewes·Xiaokang Du·Yong Du·Jun Fan·Yaquan Fang·Cunfeng Feng·Andrew Fowlie·Hao-fei Gao·Jie Gao·Lin-Qing Gao·Meisen Gao·Yu Gao·Yuanning Gao·Bruce Mellado Garcia·Shao-Feng Ge·Ti Gong·Jiayin Gu·Lei Guo·Pei-Hong Gu·Yu-Chen Guo·Zhi-Hui Guo·Jan Hajer·Rabia Hameed·Chengcheng Han·Shuo Han·Tao Han·Xiqing Hao·Hong-Jian He·Xiaogang He·Yangle He·Sven Heinemeyer·Zhaoxia Heng·Xiao-Hui Hu·Fa Peng Huang·Fei Huang·Yanping Huang·Jianfeng Jiang·Xu-Hui Jiang·Hong-Bo Jin·Mingjie Jin·Shan Jin·Wenyi Jin·Mussawir Khan·Honglei Li·Jiarong Li·Jinmian Li·Liang Li·Lingfeng Li·Qiang Li·Shu Li·Tianjun Li·Tong Li·Weidong Li·Xin-Qiang Li·Ying Li·Yuhui Li·Zhao Li·Shiyi Liang·Zhijun Liang·Chengxin Liao·Hongbo Liao·Jiajun Liao·Hai Lin·Bo Liu·Hang Liu·Jia Liu·Jianbei Liu·Jianglai Liu·Tao Liu·Wei Liu
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Abstract

The Circular Electron-Positron Collider (CEPC), a proposed next-generation Higgs factory, provides new opportunities to explore physics beyond the Standard Model (SM). With its clean electron-positron collision environment and the ability to collect large samples of Higgs, W, and Z bosons, the CEPC enables precision measurements and searches for new physics. This white paper outlines the CEPC's discovery potential, including studies of exotic decays of the Higgs, Z, and top quarks, dark matter and dark sector phenomena, long-lived particles, supersymmetry, and neutrino-related signatures. Advanced detector technologies and reconstruction techniques, such as one-to-one correspondence reconstruction and jet origin identification, significantly improve sensitivity to rare and weakly interacting processes. The CEPC is particularly well suited to probe the electroweak phase transition and test models of electroweak baryogenesis and dark sector interactions. In addition, global fit analyses highlight the CEPC's complementary role in constraining a wide range of new physics scenarios. These features position the CEPC as a powerful tool for exploring the next frontier in fundamental particle physics in the post-Higgs discovery era.

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Xiaocong Ai, Stefan Antusch, Peter Athron, Yunxiang Bai, Shou-Shan Bao, Daniele Barducci, Xiao-Jun Bi, Tianji Cai, Lorenzo Calibbi, Junsong Cang, Junjie Cao, Wei Chao, Boping Chen, Gang Chen, Long Chen, Mingshui Chen, Shanzhen Chen, Xiang Chen, Huajie Cheng, Huitong Cheng, Yaodong Cheng, Kingman Cheung, Min-Huan Chu, João Barreiro Guimarães da Costa, Xinchen Dai, Arindam Das, Zhi-fu Deng, Frank F. Deppisch, P. S. Bhupal Dev, Yabo Dong, Marco Drewes, Xiaokang Du, Yong Du, Jun Fan, Yaquan Fang, Cunfeng Feng, Andrew Fowlie, Hao-fei Gao, Jie Gao, Lin-Qing Gao, Meisen Gao, Yu Gao, Yuanning Gao, Bruce Mellado Garcia, Shao-Feng Ge, Ti Gong, Jiayin Gu, Lei Guo, Pei-Hong Gu, Yu-Chen Guo, Zhi-Hui Guo, Jan Hajer, Rabia Hameed, Chengcheng Han, Shuo Han, Tao Han, Xiqing Hao, Hong-Jian He, Xiaogang He, Yangle He, Sven Heinemeyer, Zhaoxia Heng, Xiao-Hui Hu, Fa Peng Huang, Fei Huang, Yanping Huang, Jianfeng Jiang, Xu-Hui Jiang, Hong-Bo Jin, Mingjie Jin, Shan Jin, Wenyi Jin, Mussawir Khan, Honglei Li, Jiarong Li, Jinmian Li, Liang Li, Lingfeng Li, Qiang Li, Shu Li, Tianjun Li, Tong Li, Weidong Li, Xin-Qiang Li, Ying Li, Yuhui Li, Zhao Li, Shiyi Liang, Zhijun Liang, Chengxin Liao, Hongbo Liao, Jiajun Liao, Hai Lin, Bo Liu, Hang Liu, Jia Liu, Jianbei Liu, Jianglai Liu, Tao Liu, Wei Liu. 2025-05-30. New Physics Search at the CEPC: a General Perspective. https://doi.org/10.1088/1674-1137%2Fae1194

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