Münster 2011 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 8: Schwerionenkollisionen und QCD Phasen II
HK 8.8: Vortrag
Montag, 21. März 2011, 18:45–19:00, HS AP
On-line Hyperons reconstruction in Au+Au collisions at 10 and 25 AGeV with the CBM detector — •Vassiliev Iouri1,2, Kisel Ivan2, Kulakov Igor2,3, Zyzak Maksym2,3, and Akishina Valentina4 — 1Goethe-Universität, Institut für Kernphysik, Frankfurt am Main, Germany; — 2GSI, Darmstadt, Germany — 3National Taras Shevchenko University of Kyiv, Ukraine — 4Moscow State University, Russia
The main goal of the CBM experiment is to study the properies of compressed barionic matter as created in high energy heavy ion collisions. One of the most promising probes of the dence phase of the collision are (multi-) strange particles. Hyperons like Λ, Ξ− and Ω− will be measured in CBM via their decay into charged hadrons which are detected in the Silicon Tracking System (STS). To study the feasibility of on-line reconstruction of hyperons in the CBM experiment, a set of 104 central Au+Au events at 10 and 25 AGeV, generated with UrQMD, were simulated. The standard geometry with eight STS stations of double-sided segmented strip detectors is used for tracking. No kaon or proton identification with the time-of-flight detector is applied. The cellular automaton based track finder was used for on-line track reconstruction. Primary vertex finding and the reconstruction of the decayed particles from their daughter particles were done with SIMD instructions. The strategy for signals selection and background suppression will be discussed.
Supported by GSI, HIC for FAIR, EU FP7 Hadronphysics2