Physics cross sections and event generation of $e^{+}{e}^{-}$ annihilations at the CEPC

Abstract

The cross sections of the Higgs production and the corresponding backgrounds of $e^{+}{e}^{-}$ annihilations at the CEPC (Circular Electron and Positron Collider) are calculated by a Monte-Carlo method, and the beamstruhlung effect at the CEPC is carefully investigated. The potential for new physics beyond the Standard Model at the CEPC is discussed.