TAR STAR-TOF STAR Detector Data sam ple in Run vil: 口 5 trays out of 120 trays lme t Coverage:-1<n0,△<兀/6 Set behind the tpx sector (TPC with upgraded I eran Time fre jee tlen CM electronics DAQ1000) x2/ndf 729.1|65 Constant 3984±14.3 78 M TOF triggered events Mean0.007447±0.000315 0.1102±0.0003 equivalent to 400 M minimum bias events 2500 TOF system timing resolution: 110 ps I)start time resolution -83ps 2)TOF intrinsic time resolution -75ps Efficiency: >90% TOF-TOF. e Jin-------------------------------------------------------------------------------------------------------------------- -------------------------------------------------------------------------------------------------------------------- F. Jin 4 ➢ 5 trays out of 120 trays ➢ Coverage: -1<<0, </6 ➢ Set behind the TPX sector (TPC with upgraded electronics DAQ1000) ➢ 78 M TOF triggered events, equivalent to ~400 M minimum bias events Data sample in Run VIII: TOF system timing resolution: ~110 ps 1) start time resolution ~83ps 2) TOF intrinsic time resolution ~75ps Efficiency: >90% STAR-TOF