Publications [#247526] of Berndt Mueller

Papers Published
  1. Geiger, K; Müller, B, How Dense Does Parton Matter Get in Pb + Pb Collisions at the CERN SPS?, Acta Physica Hungarica New Series Heavy Ion Physics, vol. 7 no. 2 (1998), pp. 207-213 [pdf] .

    We examine the qualitative features of parton production through materialization in heavy-ion collisions within perturbative QCD, and estimate the magnitude of the resulting parton density created during the early stage of the collisions. The implications for "anomalous" J/ψ suppression observed in Pb + Pb collisions at the CERN SPS are discussed. We argue that the A-dependence of absorption of J/ψ by (partonic) comovers is steeper than assumed in most phenomenological models, because the absorption process is dominated by quasi-perturbative QCD interactions. Our argument is supported by results recently obtained in the framework of the parton cascade model. We predict significant "anomalous" suppression for Pb + Pb collisions at the CERN-SPS, but not for S + U collisions.