Proton-Antiproton events collected with the CDF minimum-bias
trigger at sqrt(s) = 1800 and 630 GeV are studied splitting the full event
sample in a soft subsample of events with no energy clusters above 1.1 GeV
and in the subsample of the remaining events. Detailed and precise analyses
of the multiplicity and transverse momentum distributions as well as of the
correlation of the average p_t and of its dispersion with the multiplicity
are performed for the two samples. Comparisons of the results and of their
dependence from the center of mass energy show clear differences in their
behaviours. The results support important and unexpected scaling properties
of the soft sample.
Return to top of page.
Go to Physics Results
Updated: Tuesday, 2000 October 10 18:27:57 CDT automatically from input from Carol Picciolo