EPS Figure
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The average scalar PTsum of "away" charged particles (PT > 0.5 GeV/c, |eta| < 1) as a function of the transverse momentum of the leading charged jet. Each point corresponds to the <PTsum> in a 1 GeV/c bin. The solid (open) points are the Min-Bias (JET20) data. The data are compared with the QCD Monte-Carlo model predictions of HERWIG 5.9, ISAJET 7.32, and PYTHIA 6.115, with their default parameters and PT(hard) > 3 GeV/c. The Monte-Carlo model predictions have been corrected for the CTC track finding efficiency (8% of the charged tracks are, on the average, removed) and have an uncertainty (statistical plus systematic) of about 5%. (Return)