A conceptual design of TOF based on MRPC technology for the future electron-positron Higgs factory

Future electron-positron Higgs factories could provide excellent opportunities to examine the Standard Model and search for new physics with much higher precision than the LHC. A precise particle identification is crucial for the physics program at these future colliders and can be achieved via precise time-of-flight (TOF) measurements of the final state particles. In this paper, we propose a conceptual design of TOF system based on the multigap resistive plate chamber (MRPC) technology for future electron-positron Higgs factories. This TOF system will be characterized by a time resolution of < 35 ps, a total active area of 77 m(2), and a construction budget of the order of 5 million USD.