Dresden 2013 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 68: Instrumentation

HK 68.4: Talk

Thursday, March 7, 2013, 14:45–15:00, HSZ-405

Offline software for the luminosity detector at PANDA — •Anastasia Karavdina¹, Achim Denig^{1, 2}, Florian Feldbauer^{1, 2}, Miriam Fritsch^{1, 2}, Prometeusz Jasinski^{1, 2}, Heinrich Leithoff^{1, 2}, Mathias Michel^{1, 2}, Stefan Pflueger^{1, 2}, and Tobias Weber^{1, 2} — ¹Institut für Kernphysik, Johannes Gutenberg-Universität Mainz — ²Helmholtz-Institut Mainz

The precise determination of the luminosity is crucial for the PANDA experiment which will be built at the new antiproton accelerator HESR (FAIR, Darmstadt, Germany). For this measurement elastic antiproton-proton scattering can be used. In the range of very small momentum transfer this process can be calculated exactly from QED. Therefore we are going to perform measurements at very small momentum transfer (and thus very small scattering angle). The current design for the detector has four planes (10/20 cm in between). It is located outside the magnetic field, 11 m behind the interaction point. Our reconstruction software includes standard parts as hit reconstruction, track finding and track fitting and specific procedures for luminosity extraction and background treatment. Beside these algorithms we developed a software alignment procedure based on reconstructed tracks by using the Millipede algorithm.

In this talk an overview of the basic concept and Monte Carlo based performance studies will be presented.