Using(10087±44)×10^(6)J/ψevents collected with the BESIII detector in 2009,2012,2018 and 2019,the tracking efficiency of charged pions is studied using the decayJ/ψ→π^(+)π^(-)π^(0).The systematic uncer...Using(10087±44)×10^(6)J/ψevents collected with the BESIII detector in 2009,2012,2018 and 2019,the tracking efficiency of charged pions is studied using the decayJ/ψ→π^(+)π^(-)π^(0).The systematic uncertainty of the tracking efficiency and the corresponding correction factors for charged pions are evaluated,in bins of transverse momentum and polar angle of the charged pions.展开更多
基金supported in part by National Key R&D Program of China under Contracts Nos.2020YFA0406300,2020YFA0406400,2023YFA1606000National Natural Science Foundation of China(NSFC)under Contracts Nos.11775245,12075250,12175259,12225509,12275296,12275297.
文摘Using(10087±44)×10^(6)J/ψevents collected with the BESIII detector in 2009,2012,2018 and 2019,the tracking efficiency of charged pions is studied using the decayJ/ψ→π^(+)π^(-)π^(0).The systematic uncertainty of the tracking efficiency and the corresponding correction factors for charged pions are evaluated,in bins of transverse momentum and polar angle of the charged pions.
