SMuK 2023 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 16: Heavy-Ion Collisions and QCD Phases III

HK 16.5: Vortrag

Dienstag, 21. März 2023, 18:15–18:30, SCH/A216

Status of the CBM Micro Vertex Detector Simulations* — •Julio Andary for the CBM-MVD collaboration — Goethe-Universität Frankfurt am Main — Helmholtz Forschungsakademie Hessen für FAIR

CBM's Micro Vertex Detector (MVD) will help identify rare particles emitted in violent heavy ion collisions at FAIR and supplements the main tracker (STS) with high-precision pointing capability close to the target. This places, besides outstanding radiation hardness, high demands on the material budget of the sensor which in turn has an impact on the performance of the detector. Thus, the detector has to be optimized w.r.t.multiple scattering and adding unwanted background tracks originating from external conversion of photons.

In order to optimize the detector geometry, CBMRoot simulation data are converted into a data format called AnalysisTree, which provides more user-friendly access to all physical quantities of the particles generated in the experiment. Before analyzing the performance of the MVD, it is necessary to clarify how the reconstruction and mapping in AnalysisTree is implemented, i.e. the criteria according to which AnalysisTree assigns Monte-Carlo particles to reconstructed tracks. The focus in this study is on the gain in tracking performance by the MVD, also considering alternative detector geometries.

*This work has been supported by BMBF (05P21RFFC2) and GSI.