The Belle II Collaboration

28 July 2020

Abstract: We study the performances of the charged kaon and pion identification based on 37 fb−1PhaseIII data from the physics runs collected till early 2020 and compare with Phase III Monte Carlo(MC) events. The efficiency and the mis-ID rates of kaon and pion identification are calculated usingD∗+→D0[K−π+]π+decays for the binary PID criteria. The study is performed in several momentum, polar angle bins.