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Kaon production in hadronic matter |
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| Authors: | Peter Senger R Barth D Brill M Debowski E Grosse P Koczon B Kohlmeyer F Laue M Mang H Oeschler F Pühlhofer E Schwab Y Shin J Speer R Stock H Ströbele Ch Sturm A Wagner W Walus |
| Institution: | 1. GSI Darmstadt, Germany 2. Univ. Frankfurt, Germany 3. Univ. Marburg, Germany 4. TH Darmstadt, Germany 5. Univ. Kraków, Poland |
| Abstract: | Subthreshold kaon production has been studied in symmetric nucleus-nucleus collisions as a function of the nucleus mass, beam energy and centrality. In Au+Au collsions at 1 AGeV theK + multiplicity increases more than linearly with increasing number of participating nucleons. Transport calculations have to assume a soft equation of state in order to reproduce the data. The in-mediumK ? cross section measured in Ni+Ni collisions is enhanced by about a factor of 7 as compared to the free cross section when using theK + cross section at equivalent beam energies as a normalization. |
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