{ "id": "nucl-th/0103036", "version": "v1", "published": "2001-03-15T11:53:38.000Z", "updated": "2001-03-15T11:53:38.000Z", "title": "The nuclear equation of state probed by $K^+$ production in heavy ion collisions", "authors": [ "C. Fuchs", "Amand Faessler", "S. El-Basaouny", "E. Zabrodin" ], "comment": "14 pages Revtex, 6 figures, Proceedings to the XXXIX Interantional Winter Meeting on Nuclear Physics, Bormio, Italy, 2001", "journal": "J.Phys.G28:1615-1622,2002", "doi": "10.1088/0954-3899/28/7/313", "categories": [ "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.", "revisions": [ { "version": "v1", "updated": "2001-03-15T11:53:38.000Z" } ], "analyses": { "keywords": [ "heavy ion collisions", "nuclear equation", "production", "excitation function" ], "tags": [ "journal article" ], "note": { "typesetting": "RevTeX", "pages": 14, "language": "en", "license": "arXiv", "status": "editable", "inspire": 554204 } } }