## 3-jet production at the Tevatron

Use MadGraph/MadEvent to obtain the distributions of where are the energy fraction of the jets normalized as , with , in three-jet events. Consider collisions at 1.8 TeV of c.m.s. Set the minimum for the jets to 15 GeV, the maximum rapidity of and the . Compare your results with the experimental data from CDF, Run I, shown in the Figure below.