Hi, I am trying to compare some track parameters from Data to MC, and particularly I am looking into collection "MatchedTracks". I used following files /mss/hallb/hps/production/recon/tritrig-beam-tri/1pt1/egsv3-triv2-g4v1_s2d6_HPS-EngRun2015-Nominal-v0_224054_pairs1_*.slcio In that files "MatchedTracks" is empty. Am I looking into wrong files? is there MC data with 1p1 GeV beam and reconstructed "MatchedTracks". Rafo ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the HPS-SOFTWARE list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=HPS-SOFTWARE&A=1