Strange Baryon Production in Heavy Ion Collisions
نویسندگان
چکیده
The rapidity distribution of Λ and Λ̄ 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-Λ̄ pair production resulting from the fragmentation of sea diquarks, final state interactions of co-moving secondaries π +N → K + Λ and π + N̄ → K + Λ̄ are needed in order to reproduce the data. Predictions for Pb-Pb collisions are presented.
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