Strange and non-strange baryon production in π+p and K+p interactions at 250 GeV/c

I. V. Ajinenko*, M. R. Atayan, Yu A. Belokopytov, H. Boettcher, F. Botterweck, P. V. Chliapnikov, F. Crijns, A. de Roeck, E. A. De Wolf, K. Dziunikowska, A. M F Endler, A. Eskreys, Z. C. Garutchava, Yu A. Golubkov, N. G. Grigoryan, P. van Hal, T. Haupt, W. Kittel, B. B. Levchenko, F. MeijersA. B. Michalowska, V. I. Nikolaenko, K. Olkiewicz, R. Pöllänen, L. P. Petrovikh, V. M. Ronjin, R. Rosmalen, R. Rosmalen, A. M. Rybin, H. M T Saarikko, L. Scholten, N. N. Sotnikova, J. Stepaniak, O. G. Tchikilev, A. G. Tomaradze, V. A. Uvarov, F. Verbeure, R. Wischnewski

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


We present data on the production of the baryons Λ, {Mathematical expression}, p and of the baryon resonances Σ*+ (1385) and Δ++ (1232) in K+p and π+p interactions at 250 GeV/c. Results are given on total and semi-inclusive cross sections, Feynman-x spectra, transverse momentum distributions and Λ polarization. The data are compared with measurements at lower energies, with deep inclastic lepton nucleon data and with predictions of quark-parton models. The models underestimate Λ production in the central c.m. region, a feature also seen in recent heavy-ion data. This failure can be cured in JETSET 6.3 by adjustment of the di-quark break-up probability.

Original languageEnglish (US)
Pages (from-to)573-587
Number of pages15
JournalZeitschrift für Physik C Particles and Fields
Issue number4
StatePublished - Dec 1989

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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