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Bochum 2009 – scientific programme

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HK: Fachverband Hadronen und Kerne

HK 45: Heavy Ion Collisions and QCD phases

HK 45.6: Talk

Wednesday, March 18, 2009, 15:30–15:45, H-ZO 10

Centrality dependence of Ks0 production in 40A and 158A GeV Pb+Pb collisions at the CERN SPS — •Julian Book1, Hans Beck1, Christoph Blume1, Volker Friese2, Marek Gazdzicki1, Claudia Höhne2, Dmytro Kresan2, Michael Mitrovski1, Moritz Pohl1, Rainer Renfordt1, Tim Schuster1, Reinhard Stock1, Herbert Ströbele1, and Milica Utvić11Fachbereich Physik der Universität, Frankfurt — 2Helmholtzzentrum für Schwerionenforschung (GSI), Darmstadt

The NA49 experiment has measured strange hadron production in Pb+Pb collisions for different centralities and energies. Preliminary results on Λ, Ξ, K± have already been shown. In order to cross-check and complete these, Ks0 production has been studied.
This analysis was based on data measured with the NA49 large acceptance hadron spectrometer. Ks0 are identified via their decay topology and invariant mass determination.
Preliminary results on the centrality dependence of transverse mass and rapidity spectra as well as the total yields will be presented for 40A and 158A GeV. A comparison to the corresponding results for charged kaons measured via time of flight, energy loss and to various theoretical models will be shown.

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