SMuK 2021 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 28: Instrumentation VIII

HK 28.1: Gruppenbericht

Freitag, 3. September 2021, 14:00–14:30, H2

Status of the CBM-MVD* — •Michael Deveaux for the CBM-MVD collaboration — GSI Darmstadt

The Compressed Baryonic Matter Experiment (CBM) is one of the core experiments of the future FAIR facility. It will explore the phase diagram of strongly interacting matter in the regime of high net baryon densities. Its Micro Vertex Detector (MVD) will contribute to the secondary vertex determination on a 10 µ m scale, background rejection in di-electron spectroscopy and reconstruction of weak decays of multi-strange baryons. The detector comprises four stations placed next to the target in vacuum. The stations will be populated with 50  µ m thin, highly-granular dedicated Monolithic Active Pixel Sensors (called “MIMOSIS”), which are being developed aiming at a spatial precision in the order of ∼ 5  µ m, a readout speed of less than 5  µ s/frame, a radiation tolerance of ∼ 7× 10¹³  n_eq/cm² and 5 MRad. This contribution will summarize the status of activities towards constructing the MVD, that involve in particular the commissioning and beam tests of the first full size sensor prototype MIMOSIS-1 carried out in partnership with IPHC-Strasbourg.

*This work has been supported by BMBF (05P19RFFC1), GSI, HFHF and CREMLINplus.