Latest documents http://publikationen.ub.uni-frankfurt.de/index/index/ Fri, 16 Feb 2007 14:41:50 +0100 Fri, 16 Feb 2007 14:41:50 +0100 http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/1689 Based on the UrQMD transport model, the transverse momentum and the rapidity dependence of the Hanbury-Brown-Twiss (HBT) radii R_L, R_O, R_S as well as the cross term R_OL at SPS energies are investigated and compared with the experimental NA49 and CERES data. The rapidity dependence of the R_L, R_O, R_S is weak while the R_OL is significantly increased at large rapidities and small transverse momenta. The HBT "life-time" issue (the phenomenon that the calculated sqrt R_O^2-R_S^2 value is larger than the correspondingly extracted experimental data) is also present at SPS energies. Qingfeng Li; Marcus Bleicher; Xianglei Zhu; Horst Stöcker preprint http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/1689 Fri, 16 Feb 2007 14:41:50 +0100