Kaon production in hadronic matter

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,the Kaos Collaboration

Acta Physica Hungarica New Series Heavy Ion Physics（1996）

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Abstract

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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Key words

Nuclear Medium, Hadronic Matter, Strangeness Production, Kaon Production, Soft Equation

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