Bonn 2020 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 30: Instrumentation VI

HK 30.5: Vortrag

Mittwoch, 1. April 2020, 15:15–15:30, J-HS D

HADES RICH upgrade and performance — •Jörg Förtsch and Christian Pauly for the HADES collaboration — Bergische Universität Wuppertal

The HADES experiment at GSI in Darmstadt is studying baryonic matter at low temperatures in pion, proton and heavy ion induced reactions on both light and heavy nuclei. In 2018 / 2019 a major detector upgrade has been carried out including a new MAPMT based photon detector for the RICH, which replaced the old CsI+MWPC based VUV photon camera. Readout of the new photon detector is accomplished using the DiRICH readout chain which aims in particular on good timing precision.

The upgraded RICH detector has been successfully operated in a very successful 4 week measurement campaign of Ag+Ag collisions at 1.58A GeV.

We have studied the performance of the RICH detector with respect to electron identification efficiency and timing precision. We present the upgrade and show first results on the performance.

The work has been supported by BMBF (05P19PXFCA), GSI and HIC for FAIR.

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