Publications [#245397] of Steffen A. Bass

Papers Published
  1. Bass, SA; Belkacem, M; Brandstetter, M; Bleicher, M; Gerland, L; Konopka, J; Neise, L; Spieles, C; Soff, S; Weber, H; Stoecker, H; Greiner, W, Are we close to the QGP? - Hadrochemical vs. microscopic analysis of particle production in ultrarelativistic heavy ion collisions, Phys. Rev. Lett., vol. 81 no. 19 (1998), pp. 4092-4095 [9711032] .

    Ratios of hadronic abundances are analyzed for pp and nucleus-nucleus collisions at sqrt(s)=20 GeV using the microscopic transport model UrQMD. Secondary interactions significantly change the primordial hadronic cocktail of the system. A comparison to data shows a strong dependence on rapidity. Without assuming thermal and chemical equilibrium, predicted hadron yields and ratios agree with many of the data, the few observed discrepancies are discussed.