The Higgs signatures at the CEPC CDR baseline Supported by National Key Program for S&T Research and Development (2016YFA0400400), the National Natural Science Foundation of China (11675202), and the Hundred Talent programs of Chinese Academy of Science (Y3515540U1)
Hang Zhao (Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China, CAS Center for Excellence in Particle Physics, Beijing 100049, China, Collaborative Innovation Center for Particles and Interactions, Hefei 230026, China); Yong-Feng Zhu (University of Chinese Academy of Sciences, Beijing 100049, China, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China); Cheng-Dong Fu (Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China); Dan Yu (Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China); Man-Qi Ruan (Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China, CAS Center for Excellence in Particle Physics, Beijing 100049, China)
As a Higgs factory, the CEPC (Circular Electron-Positron Collider) project aims at precision measurements of the Higgs boson properties. A baseline detector concept, APODIS (A PFA Oriented Detector for the HIggS factory), has been proposed for the CEPC CDR (Conceptual Design Report) study. We explore the Higgs signatures for this baseline design with Higgs events. The detector performance for reconstructing charged particles, photons and jets is quantified with and jet final states, respectively. The resolutions of reconstructed Higgs boson mass are comparable for the different decay modes with jets in the final states. We also analyze the * and ZZ* decay modes, where a clear separation between different decay cascades is observed.
