摘要
Using the data samples collected at and around the center-of-mass energies of 3.097 GeV and 3. 773 GeV with the BES-Ⅱ detector at the BEPC collider, we select the pure particle samples of muon, electron, kaon and pion, and their mutual （mis）identification rates are also obtained.
Using the data samples collected at and around the center-of-mass energies of 3.097 GeV and 3. 773 GeV with the BES-Ⅱ detector at the BEPC collider, we select the pure particle samples of muon, electron, kaon and pion, and their mutual （mis）identification rates are also obtained.
基金
Supported by the National Natural Science Foundation of China under Grant Nos 10491300, 10225524, 10225525, 10425523, 10625524 and 10521003, the Knowledge Innovation Project of Chinese Academy Sciences （KJ95T-03）, the One-Hundred Talents Program of Chinese Academy Sciences （U-11, U-24, U-25, U-602, U-34）.
