Inclusive neutral-strange-particle production in π-p interactions at 15 GeV / c

F. Barreiro*, O. Benary, J. E. Brau, J. Grunhaus, E. S. Hafen, R. I. Hulsizer, U. Karshon, V. Kistiakowsky, T. Lainis, A. Levy, P. A. Miller, A. Napier, I. A. Pless, J. P. Silverman, P. C. Trepagnier, J. Wolfson, R. K. Yamamoto

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A study of the inclusive production of KS0, Λ, and Λ̄ in π-p interactions at 15 GeV / c is presented. Inclusive cross sections for single neutral strange particles and neutral-strange-particle pairs are given. Longitudinal- and transverse-momentum distributions of the produced particles are presented. The average charged multiplicities of the systems recoiling against the Λ and the KS0 are compared and the results analyzed in the framework of a simple model. The Λ polarization is found to be in good agreement with Λ production from other strangeness-nonannihilating processes. Production of Λ's in the target fragmentation region is studied in the framework of the triple-Regge-pole-exchange model. The cross section for inclusive K*+(890) production has been measured as 195 ± 35 μb, and the +(1385) inclusive cross section has been found to be 174 ± 25 μb. The K*+(890) and +(1385) differential cross sections as functions of rapidity and transverse momentum are presented and discussed.

Original languageEnglish
Pages (from-to)669-680
Number of pages12
JournalPhysical Review D
Issue number3
StatePublished - 1978


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