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Contribution of the nucleon-hyperon reaction channels to K$^-$ production in proton-nucleus collisions

H. W. Barz·L. Naumann
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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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H. W. Barz, L. Naumann. 2003-08-14. Contribution of the nucleon-hyperon reaction channels to K$^-$ production in proton-nucleus collisions. https://doi.org/10.1103/physrevc.68.041901

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