Charge asymmetries for D, Ds and Λc production in Σ-nucleus interactions at 340 GeV/c

M. I. Adamovich, Yu A. Alexandrov, D. Barberis, M. Beck, C. Bérat, W. Beusch, M. Boss, S. Brons, W. Brückner, M. Buénerd, C. Busch, C. Büscher, F. Charignon, J. Chauvin, E. A. Chudakov, U. Dersch, F. Dropmann, J. Engelfried, F. Faller, A. FournierS. G. Gerassimov, M. Godbersen, P. Grafström, Th Haller, M. Heidrich, E. Hubbard, R. B. Hurst, K. Königsmann, I. Konorov, N. Keller, K. Martens, Ph Martin, S. Masciocchi, R. Michaels, U. Müller, H. Neeb, D. Newbold, C. Newsom, S. Paul, J. Pochodzalla, I. Potashnikova, B. Povh, R. D. Ransome, Z. Ren, M. Rey-Campagnolle, G. Rosner, L. Rossi, H. Rudolph, C. Scheel, L. Schmitt, H. W. Siebert, A. Simon, V. J. Smith, O. Thilmann, A. Trombini, E. Vesin, B. Volkemer, K. Vorwalter, Th Walcher, G. Wälder, R. Werding, E. Wittmann, M. V. Zavertyaev

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29 Scopus citations

Abstract

CERN experiment WA89 has studied charmed particles produced by a Σ-beam at 340GeV/c on nuclear targets. Production of particles which have light quarks in common with the beam is compared to production of those which do not. Considerable production asymmetries between D- and D+, D-s and D+s and Λc and Λc are observed. The results are compared with pion beam data-and with theoretical calculations.

Original languageEnglish
Pages (from-to)593-601
Number of pages9
JournalEuropean Physical Journal C
Volume8
Issue number4
DOIs
StatePublished - 1999

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