Strange Baryon Production in Heavy Ion Collisions
Capella, A. · Kaidalov, A. · Akil, A. Kouider · Merino, C. · Van, J. Tran Thanh
Original · EN
The rapidity distribution of Λ and Λ produced in nucleus-nucleus collisions at CERN energies is studied in the framework of an independent string model - with quark-antiquark as well as diquark-antidiquark pairs in the nucleon sea. It is shown that, besides the Λ-Λ pair production resulting from the fragmentation of sea diquarks, final state interactions of co-moving secondaries π+ N → K + Λ and π+ N → K + Λ are needed in order to reproduce the data. Predictions for Pb-Pb collisions are presented.
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