Reactions with leading hadrons in meson-proton interactions at 250 GeV/c

N. M. Agababyan*, M. R. Atayan, E. A. De Wolf, K. Dziunikowska, A. M F Endler, Z. Sh Garutchava, H. R. Gulkanyan, R. Sh Hakobyan, J. K. Karamyan, D. Kisielewska, W. Kittel, S. S. Mehrabyan, Z. V. Metreveli, K. Olkiewicz, F. K. Rizatdinova, E. K. Shabalina, L. N. Smirnova, M. D. Tabidze, L. A. Tikhonova, A. V. TkabladzeA. G. Tomaradze, F. Verbeure, S. A. Zotkin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Inelastic final states with one or two leading hadrons are studied in π+p and K+p interactions at 250 GeV/c. In reactions with two leading hadrons, the dependence of the average charge multiplicity of associated pions on their effective mass is essentially consistent with that observed in p̄p and γγ-collisions, but differs from that obtained in e+e--annihilation. The multiplicity and (semi)inclusive characteristics of the π+-induced non-diffractive reactions are compared to predictions of current versions of the FRITIOF fragmentation model. We show that the hard-like sub-processes, essentially responsible for the production of leading hadrons with relatively large transverse momentum as well as for the relatively large multiplicity of associated pions, are not properly treated in the model.

Original languageEnglish (US)
Pages (from-to)229-236
Number of pages8
JournalZeitschrift fur Physik C-Particles and Fields
Issue number2
StatePublished - Jun 1997

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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