{ "id": "nucl-th/0011102", "version": "v2", "published": "2000-11-30T16:50:38.000Z", "updated": "2001-01-17T16:43:03.000Z", "title": "Probing the nuclear equation of state by $K^+$ production in heavy ion collisions", "authors": [ "C. Fuchs", "Amand Faessler", "E. Zabrodin", "Yu-Ming Zheng" ], "comment": "4 pages Revtex, 4 PS figures, to appear in Phys. Rev. Lett", "journal": "Phys.Rev.Lett. 86 (2001) 1974-1977", "doi": "10.1103/PhysRevLett.86.1974", "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.", "revisions": [ { "version": "v2", "updated": "2001-01-17T16:43:03.000Z" } ], "analyses": { "keywords": [ "heavy ion collisions", "nuclear equation", "production", "kaos collaboration strongly favours", "observation holds despite" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. Lett." }, "note": { "typesetting": "RevTeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable", "inspire": 537713 } } }