SMuK 2021 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 6: Instrumentation II
HK 6.4: Vortrag
Montag, 30. August 2021, 17:30–17:45, H5
Construction and testing of the crystal Zero Degree Detector for BESIII — •Frederic Stieler1, Achim Denig1, Peter Drexler1, Leonard Koch2, Wolfgang Kühn2, Werner Lauth1, Jan Muskalla1, Saskia Plura1, Christoph Redmer1, and Yasemin Schelhaas1 — 1Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, Deutschland — 2II. Physikalisches Institut, Justus-Liebig-Universität Gießen, Deutschland
The crystal Zero Degree Detector (cZDD) is a proposed addition to the BESIII experiment in China in the near future. In order to measure hadronic cross sections with the Initial State Radiation (ISR) method for a more precise calculation of the hadronic vacuum polarization contribution to the anomalous magnetic moment of the muon, ISR photons have to be detected. Since these photons are mostly emitted at small angles in relation to the colliding particles, the cZDD was conceived to measure ISR at low angles of about 1.5 mrad to 10.4 mrad, that are not covered yet by the already existing detectors at BESIII.
In this presentation the construction of the detector as well as test measurements using the read out electronics are presented.