Multijet Mass Distributions
The observed multijet mass distributions for CDF events with total
transverse energy exceeding 420 GeV extend out to masses of about
1 TeV/c^2. The mass distributions for two-, three-, four-, five-,
and six-jet events all have similar shapes, and are all well described
by both QCD parton shower Monte carlo predictions and by complete
leading order 2 -> N perturbative QCD predictions.
Multijet Mass Figure
Figure caption: Exculsive multijet mass distributions for events
containing two, three, four, five, and six jets with transverse
energy > 20 GeV. The CDF data
(solid points) are compared with HERWIG predictions (histograms)
and NJETS predictions (8 curves for 8 different parameter choices)
for events with total-transverse-energy
exceeding 420 GeV and leading-jet scattering angle such that cos theta < 0.67.
More information can be found in
prl 75, 608 (1995)