Frankfurt 2014 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 5: Schwerionenkollisionen und QCD Phasen
HK 5.8: Vortrag
Montag, 17. März 2014, 15:45–16:00, HZ 7
Charged Pion Production and V0 Reconstruction in Au+Au-Collisions at 1.23 AGeV with HADES — •Timo Scheib for the HADES collaboration — Goethe-Universität Frankfurt
In heavy ion collisions at beam energies of 1-2 AGeV, strange particles are produced below their elementary production threshold which results in a steep excitation function.
In April and May 2012, 7.3 billion Au(1.23 GeV per nucleon)+Au collisions have been recorded by the HADES detector, installed at the Helmholtzzentrum fuer Schwerionenforschung (GSI) in Darmstadt, Germany. In this collision system the weakly decaying strange hadrons Ks0 and Λ were measured and reconstructed. In order to draw conclusions on strangeness production mechanisms in heavy ion collisions the yields can be compared to non-strange particle production, i.e. charged pions.
In this contribution preliminary particle spectra of charged pions, Λ hyperons and Ks0 mesons measured in these collisions will be presented. Supported by BMBF (05P12RFGHJ), Helmholtz Alliance EMMI, HIC for FAIR, HGS-HIRe and H-QM.