Speaker
Yifan Zhu
Description
We conduct a detailed Monte Carlo study of the process e⁺e⁻ → ZH at the CEPC. The analysis focuses on final states where the Z boson decays invisibly, while the Higgs boson decays hadronically through H → bb̄, cc̄, gg and ss̄. To distinguish among hadronic final states, we apply advanced jet-tagging methods based on ParticleNet, Particle Transformer, and the More-Interaction Particle Transformer, which make use of low-level particle information for more accurate classification. In addition, we develop a machine-learning-based event selection strategy to strengthen signal–background separation, leading to improved sensitivity in Higgs property measurements and stringent tests of Standard Model predictions at the CEPC.
Primary authors
Chunxiang Zhu
Haijun Yang
(Shanghai Jiao Tong University (CN))
Kun Wang
(University of Shanghai for Science and Technology)
Yifan Zhu
xinzhu wang
(上海交通大学)
