Contribution of the nucleon-hyperon reaction channels to K- production in proton-nucleus collisions
Abstract
The cross sections for producing K- mesons in nucleon-hyperon elementary processes are estimated assuming one-pion exchange and using the experimentally known pion-hyperon cross sections. The results are implemented in a transport model which is applied to calculation of proton-nucleus collisions. In significant difference to earlier estimates for heavy-ion collisions the inclusion of the nucleon-hyperon cross section roughly doubles the K- production in near-threshold proton-nucleus collisions.
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