Latest documents http://publikationen.ub.uni-frankfurt.de/index/index/ Fri, 14 Oct 2005 12:15:39 +0200 Fri, 14 Oct 2005 12:15:39 +0200 http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/3602 In the very heavy collision system 197Au+197Au the K+ production process was studied as a function of impact parameter at 1 GeV/nucleon, a beam energy well below the free N-N threshold. The K+ multiplicity increases more than linearly with the number of participant nucleons and the K+/ pi + ratio rises significantly when going from peripheral to central collisions. The measured K+ double differential cross section is enhanced by a factor of 6 compared to microscopic transport calculations if secondary processes ( Delta N-->K Lambda N and Delta Delta -->K Lambda N) are ignored. D. Miskowiec; W. Ahner; R. Barth; et al.; Reinhard Stock article http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/3602 Fri, 14 Oct 2005 12:15:39 +0200