Spectra and correlations of Λ and Λ̄ produced in 340-GeV/c Σ-+C and 260-GeV/c n+C interactions

M. I. Adamovich, Yu A. Alexandrov, S. P. Baranov, 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. FallerA. Fournier, S. 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. 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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4 Scopus citations


We have measured the production of strange baryons and antibaryons in 340-GeV/c Σ- +C and 260-GeV/c n + C interactions. The single xF distributions show the expected leading particle effect, and the single pt2 distributions show a distinct nonthermal behavior. The xF distributions of Λ-Λ pairs indicate two different phase space distributions for the two coincident baryons. On the other hand two Λ̄s show identical distributions. Momentum conservation during the formation process may represent a significant source for the observed behavior.

Original languageEnglish
Article number042202
Pages (from-to)422021-422024
Number of pages4
JournalPhysical Review C - Nuclear Physics
Issue number4
StatePublished - Apr 2002
Externally publishedYes


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