Two-particle production in K+p interactions at 32 GeV/c

Results are presented on two-particle inclusive production in K+p interactions at 32 GeV/c. We study the x1sub(,)2 = x1 + x2 dependence of invariant structure functions of (ππ)-pairs and compare them to single particle inclusive distributions in the fragmentation regions. Distributions of particles observed at Feynman x2 in association with various trigger particles or systems at x1 in the same hemisphere are discussed in terms of the reduced variable x2 = x2/(1 - vertical stroke x1 vertical stroke). We further present absolute production rates and production ratios of π+ 's and π- 's associated with πsup(+-), K0sub(s), Λ, anti Λ-, Ksup(*)+(890), (K0sub(s)π+), and (π+π-)-triggers, and compare them with qualitative predictions of the quark recombination model. Forward-backward correlations between (K0sub(s)πsup(+-)), (K0sub(s),p), (Λ,π-), (anti Λ-πsup(+-)), and (p,π-) pairs are also discussed. (orig.)