Brookhaven's Relativistic Heavy Ion Collider (RHIC) delivered first collisions of Gold nuclei in the evening of June 12th. After a decade-long construction and commissioning effort, this allowed experimenters a first look at nuclear matter in conditions never before observed in the laboratory. During the first year's physics run, which ended in early September, all four experiments (Brahms, Phenix, Phobos and Star) recorded several million collision events and are now working on the analysis of these data.We will present first results of the RHIC physics analysis, including measurements of the charged particle multiplicity. Results will be discussed in comparison to data from lower energies at the CERN SPS and model predictions.
Organiser(s): Yiota Foka, Ulrich Heinz and Urs Wiedemann