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HK: Fachverband Physik der Hadronen und Kerne
HK 4: Schwerionenkollisionen und QCD Phasen
HK 4.5: Talk
Monday, March 4, 2013, 12:15–12:30, HSZ-204
Reconstruction of rare hadronic signals in Au+Au at 1.23 A GeV with HADES — •Manuel Lorenz — Goethe-Universität, Frankfurt am Main
In April 2012 the HADES collaboration collected data of the long planned heavy-ion experiment Au+Au. A gold beam with a kinetic energy of 1.23A GeV was impinged on a 15-fold-segmented target with an average intensity of about 106 ions per second. In total 7*109 events corresponding to a raw data volume of 140 TB were collected with a peak data rate of 8 kHz. These numbers specify a totally new era for GSI heavy-ion experiments giving new demands on the analysis procedures and computing resources.
Besides dileptons, hadrons containing strangeness are promising probes of the hot and dense phase as they are produced below their free NN-threshold and hence have a steep excitation function. Preliminary results including signals of all relevant particles containing strangeness (K+−,Ks0, Λ, Φ) which we will present in this contribution are very promising and well beyond our expectations.
Supported by BMBF (06FY9100I and 06FY7114), HIC for FAIR, EMMI, GSI and HGS-Hire