München 2006 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe

HK: Physik der Hadronen und Kerne

HK 39: Physik mit schweren Ionen

HK 39.6: Vortrag

Mittwoch, 22. März 2006, 18:15–18:30, D

Energy dependence of K_s⁰ production in central Pb+Pb collisions at the CERN SPS — •Claudia Strabel¹, C. Alt¹, C. Blume¹, P. Dinkelaker¹, D. Flierl¹, V. Friese², M. Gaździcki¹, C. Höhne², M. Kliemant¹, S. Kniege¹, B. Lungwitz¹, M. Mitrovski¹, M. Otto¹, R. Renfordt¹, A. Sandoval², R. Stock¹, and H. Ströbele¹ — ¹Institut für Kernphysik, Universität Frankfurt — ²Gesellschaft für Schwerionenforschung (GSI), Darmstadt

In the framework of the NA49 energy scan program, strange hadron production has been measured in central Pb+Pb collisions at energies between 20A and 158A GeV. One of the most striking observations is the pronounced maximum in the ratio of the strangeness to pion yield at low SPS energies. In order to cross-check these results and to complete the analysis of strange particles, the K_s⁰ production in central Pb+Pb collisions is studied.

This analysis is based on data measured with the NA49 large acceptance hadron spectrometer. K_s⁰ are identified via decay topology and invariant mass determination.

Preliminary transverse mass and rapidity spectra as well as the total yields will be presented for several SPS energies and a comparison to the corresponding results for charged kaons will be shown.