Kavli Affiliate: Jia Liu
| First 5 Authors: , , , ,
| Summary:
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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