Study of BESIII trigger efficiencies with the 2018 J/Ψ data

• 来源期刊: 中国物理C（英文版）
• 年，卷（期）: 2021,（2）
• 所属期刊栏目: PARTICLES AND FIELDS
• 页码范围: 48-55
• 页数: 8页
• 语种: 英文
• DOI: 10.1088/1674-1137/abcfab

摘要

Using a dedicated data sample taken in 2018 on the J/Ψ peak,we perform a detailed study of the trigger efficiencies of the BESIII detector.The efficiencies are determined from three representative physics processes,namely Bhabha scattering,dimuon production and generic hadronic events with charged particles.The combined ef-ficiency of all active triggers approaches 100％in most cases,with uncertainties small enough not to affect most physics analyses.