SMuK 2023 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 27: Heavy-Ion Collisions and QCD Phases V

HK 27.1: Gruppenbericht

Mittwoch, 22. März 2023, 14:00–14:30, SCH/A216

The CBM Experiment at FAIR - towards commissioning in 2027 — •Christian Sturm for the CBM collaboration — GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany

The Compressed Baryonic Matter experiment (CBM) is under construction at the Facility for Antiproton and Ion Research (FAIR). It aims to explore the phase structure of strongly interacting (QCD) matter at large net-baryon densities and moderate temperatures by means of heavy-ion collisions. The CBM experiment is designed as a fixed-target experiment, being equipped with fast and radiation-tolerant detector systems read out by a free-streaming data acquisition system. Performing online 4D reconstruction and selection CBM will measure with unprecedented interaction rates of up to 10 MHz. Hence, rare and penetrating probes like multi-strange hadrons, ΛΛ-hypernuclei, di-electrons/muons as well as charm production will be measured with high statistics in this region of the QCD phase diagram for the first time. This opens the opportunity to search for structures in the excitation functions and thus obtain experimental evidence for a first order phase transition and critical end point recently predicted to be present in the FAIR (SIS100) energy range. The presentation will summarize the preparation status of the CBM experiment on the way towards commissioning in 2027 including latest results of the mCBM experiment, a CBM demonstrator and full-system test-setup running within the FAIR phase-0 program.