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24 April 2024

» arxiv » nucl-th/0201088

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The nuclear equation of state probed by K+ production in heavy ion collisions
C. Fuchs ; Amand Faessler ; S. El-Basaouny ; K. Shekhter ; E.E. Zabrodin ; Y.M. Zheng ;
Date:	31 Dec 2001
Subject:	nucl-th
Abstract:	The dependence of K+ production on the nuclear equation of state is investigated in heavy ion collisions. An increase of the excitation function of K+ multiplicities obtained in heavy (Au+Au) over light (C+C) systems when going far below threshold which has been observed by the KaoS Collaboration strongly favours a soft equation of state. This observation holds despite of the influence of an in-medium kaon potential predicted by effective chiral models which is necessary to reproduce the experimental K+ yields. Phase space effects are discussed with respect to the K+ excitation function.
Source:	arXiv, nucl-th/0201088
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