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On the Measurement of D-meson Yield in Nucleus-Nucleus Collisions at the CERN SPS

Marek Gazdzicki, Christina Markert

hep-pharXiv:hep-ph/9904441

Abstract

We argue that the measurement of open charm gives a unique opportunity to test the validity of pQCD-based and statistical models of nucleus-nucleus collisions at high energies. We show that various approaches used to estimate D-meson multiplicity in central Pb+Pb collisions at 158 A GeV give predictions which differ by more than a factor of 100. Finally we demonstrate that decisive experimental results concerning the open charm yield in A+A collisions can be obtained using data of the NA49 experiment at the CERN SPS.

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