  We have analyzed the latest NA50 data on transverse energy distributions and
$J/\psi$ suppression in Pb+Pb collisions. The transverse energy distribution
was analysed in the geometric model of AA collisions. In the geometric model,
fluctuations in the number of NN collisions at fixed impact parameter are taken
into account. Analysis suggests that in Pb+Pb collisions, individual NN
collisions produces less $<E_T>$, than in other AA collisions. The nucleons are
more transparent in Pb+Pb collisions. The transverse energy dependence of the
$J/\psi$ suppression was obtained following the model of Blaizot et al, where
charmonium suppression is assumed to be 100% effective above a threshold
density. With fluctuations in number of NN collisions taken into account, good
fit to the data is obtained, with a single parameter, the threshold density.

High Energy Physics - Phenomenology