Strangeness production in antiproton-nucleus annihilation
1 Institut für Theoretische Physik, Universität Giessen, D-35392 Giessen, Germany
2 National Research Center “Kurchatov Institute”, 123182 Moscow, Russia
3 Frankfurt Institute for Advanced Studies, J.W. Goethe-Universität, D-60438 Frankfurt am Main, Germany
The results of the microscopic transport calculations of -nucleus interactions within a GiBUU model are presented. The dominating mechanism of hyperon production is the strangeness exchange processes → γπ and → ΞK. The calculated rapidity spectra of Ξ hyperons are significantly shifted to forward rapidities with respect to the spectra of S = −1 hyperons. We argue that this shift should be a sensitive test for the possible exotic mechanisms of -nucleus annihilation. The production of the double Λ-hypernuclei by Ξ− interaction with a secondary target is calculated.
© Owned by the authors, published by EDP Sciences, 2012
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