Mainz 2012 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 53: Poster – Instrumentation

HK 53.21: Poster

Donnerstag, 22. März 2012, 14:00–16:00, P Foyer

Performance simulation studies of a realistic model of the CBM Silicon Tracking System — •Anna Kotynia — GSI Darmstadt

One of the most challenging fields of modern high-energy physics is exploration of the phase diagram of strongly interacting matter. In order to study the dynamics of phase diagram at high net baryon densities, the CBM experiment will be performed with high-energy nucleus-nucleus collisions. Efficient charged particle tracking and high momentum resolution are central performance requirements of the CBM Silicon Tracking System (STS). The aim of ongoing layout studies is to design a highly granular and low mass detector system that can track the 1000 charged particles that are typically generated in Au+Au collisions at 25 GeV/u projectile energy. A low mass detector is required to achieve a momentum resolution down to 1%. The simulations of detector responce which have been developed include of detector responce include complete chain of physical processes caused by a charged particle traversing the detector - from charge creation in the silicon to the digital output signals. We will present the concept of STS geometry, tools used for simulation of realistic detector responce together with discussion about results of such simulations. Supported by EU-FP7 HadronPhysics3 and HGS-HIRe for FAIR.