Multiplicity distributions in π+d and pd collisions at 100 GeV/ c

Abstract

From an exposure of the 30-inch deuterium bubble chamber at Fermilab we examine 7600 events with three or more charged prongs. Multiplicity distributions for π +n, pn, π +d and pd collisions are presented and are in general agreement with those expected based on knowledge of π −p, π +p, and pp collisions at the same energy. We find that double scattering in the deuteron, which occurs in about 14% of events, causes at most small effects on the multiplicity distributions.