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Heidelberg 2015 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 2: Instrumentation 1

HK 2.1: Group Report

Monday, March 23, 2015, 14:30–15:00, M/HS1

The Micro Vertex Detector for the PANDA Experiment — •Simone Esch for the PANDA collaboration — Forschungszentrum Jülich

The PANDA detector is one of the main experiments at the upcoming Facility for Antiproton and Ion Research (FAIR), which is under construction in Darmstadt, Germany. The fixed-target experiment will explore pp annihilations with intense, phase space-cooled beams with momenta between 1.5 and 15 GeV/c. One aim of the detector is to perform high precision measurements of particles like excited charmonium and D mesons.

Essential for background suppression is the tagging of D mesons by measuring their decay point. Therefore, a Micro Vertex Detector (MVD) is planned at PANDA as the innermost tracking detector. The MVD aims to reconstruct vertices with a resolution better than 100 µm to cope with the decay length of the D± mesons (cτ=315 µm) produced with a mean βγ=2. The detector consists of silicon pixel and double-sided silicon strip detectors, arranged in four barrel layers and six disk layers.

An overview of the MVD will be given in this talk. Recent developments like laboratory and testbeam results of the current pixel front-end ASIC prototype ToPix 4 will be shown. The concept of the newly developed strip front-end ASIC PASTA will be presented.

This work was supported by BMBF and HIC4FAIR

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