Statistical properties of the multiparticle final state as a function of the average event in pt in soft anti pp interactions at √s = 1800 and 630 GeV

A preliminary analysis of average properties of softly produced events in p anti p interactions at the Tevatron energies is presented. Data have been collected by the Collider Detector at Fermilab using a minimum bias trigger. The average charged event multiplicity, the production of strange particles and the strength of the short range pseudorapidity correlation have been studied as a function of the average transverse momentum of the event. Comparisons have been made between the two center of mass energies 1800 and 630 GeV and also with a sample of selected jet events. Peculiar characteristics in the behavior of these variables are highlighted