Bonn 2020 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 62: Combined Instrumentation Session: Silicon Strip Detectors (joint session HK/T)

HK 62.2: Talk

Friday, April 3, 2020, 11:15–11:30, H-HS XIII

Analysis of 2.7 GeV proton-beam measurements with the STS detector for the CBM experiment — •Patrick Pfistner for the CBM collaboration — Karlsruhe Institute of Technology

The Compressed Baryonic Matter (CBM) experiment at the future Facility for Antiproton and Ion Research (FAIR) in Darmstadt, Germany, aims to explore the quantum chromodynamics phase diagram for highest baryon densities. CBM will measure rare probes with high statistics which requires fast and radiation hard detectors combined with free-streaming readout electronics. One of the core detectors of CBM is the Silicon Tracking System (STS). The STS is the key detector for measuring the momentum and tracks of up to 800 charged particles produced in Au+Au collisions happening at interaction rates of up to 10 MHz. In order to evaluate the detector performance, comprehensive tests have been performed with a minimum ionizing particle beam at the COSY accelerator in Jülich in November 2019. During the beamtime, one fully assembled prototype module consisting of a double-sided Silicon microstrip sensor, 32 low-mass aluminum microcables, 16 STS-XYTER 2.1 readout ASICs and two front-end boards (FEB-8), has been exposed to a 2.7 GeV proton beam. We will present the status of the beamtime data analysis and discuss the related detector performance metrics.