TY - INPR A1 - Ernst, Christoph A1 - Bass, Steffen A. A1 - Soff, Sven A1 - Stöcker, Horst A1 - Greiner, Walter T1 - Transport calculation of dilepton production at ultrarelativistic energies N2 - Dilepton spectra are calculated within the microscopic transport model UrQMD and compared to data from the CERES experiment. The invariant mass spectra in the region between 300 MeV and 600 MeV depend strongly on the mass dependence of the rho meson decay width which is not sufficiently determined by the Vector Meson Dominance model. A consistent explanation of both the recent Pb+Au data and the proton induced data can be given without additional medium effects. Y1 - 1999 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/4789 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30-7092 ER -