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Verhandlungen
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DPG

Mainz 2012 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 41: Instrumentation

HK 41.6: Talk

Thursday, March 22, 2012, 18:15–18:30, P 2

Vertex reconstruction and measurements with the PANDA Micro-Vertex-Detector * — •Simone Bianco, Max Becker, Kai-Thomas Brinkmann, Ralf Kliemt, Karsten Koop, Andreas Pitka, Robert Schnell, Thomas Würschig, and Hans-Georg Zaunick — Helmholtz-Institut für Strahlen- und Kernphysik, Rheinische Friedrich-Wilhelms-Universität Bonn, Nussallee 14-16, D-53115, Bonn, Germany

The Micro-Vertex-Detector (MVD) of the PANDA experiment is designed to achieve vertex resolutions in the order of 100 µm. This will allow to carry out systematic studies about short-lived particles such as D mesons. Therefore, a detailed characterization of the vertex reconstruction performance is needed. Different kinematic scenarios have been studied within the PANDA simulation framework, in order to describe the response of the detector. Maps of the vertex and momentum resolutions achieved in different regions of the MVD volume were determined and will be shown in the presentation. Furthermore, examples of fully reconstructed events will be presented, highlighting the importance of the MVD in terms of vertex selection, momentum resolution and background suppression. A comparison of simulations and measurements performed with a silicon-strip telescope with different particle beams will be discussed, proving the simulation framework to be a reliable tool to characterize the detector response and performance.

* Supported by BMBF and BCGS.

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