Overview of PID options for experiments at the Super Charm-Tau Factory

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Published 14 April 2020 © 2020 IOP Publishing Ltd and Sissa Medialab
, , International Workshop on Fast Cherenkov Detectors - Photon detection, DIRC design and DAQ (DIRC2019) Citation A.Yu. Barnyakov et al 2020 JINST 15 C04032 DOI 10.1088/1748-0221/15/04/C04032

1748-0221/15/04/C04032

Abstract

The Super Charm-Tau Factory is an electron-positron collider project in Novosibirsk with a peak luminosity of 1035 cm−1s−1 operating in the center of mass energy range between 2 and 6 GeV. The physics program of the experiment in general is devoted to the study of charm quark and tau lepton. Conceptual designs of the collider and a universal detector are presented. The dedicated particle identification (PID) system is required to provide the state-of-the-art level of μ/π separation for the particle momenta up to 1.2 GeV/c. The following options for the PID system are considered in this paper: Focusing Aerogel RICH (FARICH) detector composed of 4-layer aerogel tiles, threshold Cherenkov counters based on aerogel and shifter (ASHIPH), Focusing DIRC (FDIRC) counter and time-of-flight (ToF) detector combined with the time-of-propagation (ToP) approach providing a time resolution better than 30 ps. Also the capabilities of particles separation in tracking system are discussed. Comparison of PID approaches with help of parametric simulation is performed.

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