Neutral strange particle production in high transverse momentum π- nucleus interactions at ∼40 GeV/c

H. Bärwolff, C. Dreher, W. Friebel, U. Gensch, H. E. Roloff, H. J. Schreiber, C. Spiering, E. Denes, L. Diosi, T. Gemesy, L. Jenik, J. Krasznovsky, Gy Pinter, I. Wagner, A. V. Bannikov, J. Boehm, Yu V. Grishkevich, B. A. Khomenko, Z. V. Krumstein, Yu P. MerekovV. I. Petrukhin, K. Safarik, G. A. Shelkov, L. G. Tkachev, L. S. Vertogradov, T. Soukup, A. Valkarova, S. Valkar, P. Zavada, V. G. Kristeva, V. N. Penev, A. I. Sklovskaja, A. K. Javreishvili, A. I. Kharchilava, T. A. Lomatadze, W. Dominik, J. Gajewski, S. Majewski, K. Pniewska, L. Ropelewski, J. A. Zakrzewski

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Measurements of Ks0, Λ and {Mathematical expression} production in π- nucleus (C, Cu, Pb) interactions are presented. The experiment was carried out with the streamer chamber spectrometer RISK using a π- beam of ∼40 GeV/c and a trigger requiring a secondary charged particle with transverse momentum above 1.1 GeV/c. Production cross sections, relative production rates and distributions of Feynman x and transverse momentum squared as well as correlations between the V0 and the trigger particle are presented. The results are compared and found to be in agreement with Ks0, Λ and {Mathematical expression} data from untriggered π-p and π-C interactions, except for the relative production rate of antilambdas which is about to times larger in high-pt collisions. Our results can be well interpreted within the dual topological unitarization model.

Original languageEnglish
Pages (from-to)337-345
Number of pages9
JournalZeitschrift für Physik C Particles and Fields
Issue number3
Publication statusPublished - Sep 1988


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Bärwolff, H., Dreher, C., Friebel, W., Gensch, U., Roloff, H. E., Schreiber, H. J., Spiering, C., Denes, E., Diosi, L., Gemesy, T., Jenik, L., Krasznovsky, J., Pinter, G., Wagner, I., Bannikov, A. V., Boehm, J., Grishkevich, Y. V., Khomenko, B. A., Krumstein, Z. V., ... Zakrzewski, J. A. (1988). Neutral strange particle production in high transverse momentum π- nucleus interactions at ∼40 GeV/c. Zeitschrift für Physik C Particles and Fields, 37(3), 337-345.