The nuclear equation of state probed by K+ production in heavy ion collisions

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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.
8 pages, 5 figures, uses iopams.sty; Talk at the 6th International Conference on Strange Quarks in Matter 2001(SQM2001), Frankfurt, Germany, 25-29 Sep 2001; to appear in JPG

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Nuclear Theory

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http://salesiana.dossiersoluciones.com/handle/123456789/81791

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/nucl-th/0201088
 http://arxiv.org/abs/nucl-th/0201088

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arXiv