Soft and hard interactions in [Formula Presented] collisions at [Formula Presented] and 630 GeV
Journal
Physical Review D - Particles, Fields, Gravitation and Cosmology
Journal Volume
65
Journal Issue
7
Pages
12-
Date Issued
2002
Author(s)
Acosta, D. et al. (The CDF Collaboration)
Abstract
We present a study of pp̄ of collisions at √s = 1800 and 630 GeV collected using a minimum bias trigger by the CDF experiment in which the data set is divided into two classes corresponding to "soft" and "hard" interactions. For each subsample, the analysis includes measurements of the multiplicity, transverse momentum (PT) spectrum, and the average PT and event-by-event PT dispersion as a function of multiplicity. A comparison of results shows distinct differences in the behavior of the two samples as a function of the center of mass (c.m.) energy. We find evidence that the properties of the soft sample are invariant as a function of c.m. energy.
SDGs
Type
journal article