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Mainz 2012 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 40: Astroteilchenphysik

HK 40.3: Talk

Thursday, March 22, 2012, 17:30–17:45, RW 3

Data processing and analysis of the GERDA experiment — •Matteo Agostini — Lehrstuhl für experimentelle Physik und Astroteilchenphysik E15, Physikdepartment der Technischen Universität München

The Gerda experiment searches for the neutrinoless double beta decay of 76Ge using an array of high-purity germanium detectors isotopically enriched in 76Ge. Gerda started the first physical data taking in November 2011, operating eight enriched coaxial detectors (approximately 15 kg of 76Ge). The talk will present the Gerda reference off-line analysis of the Ge detector signals. The Ge detector pulses are processed through sequences of algorithms and digital shaping filters to extract information concerning the signal shape, e.g. maximum amplitude, rise time, baseline slope. These parameters are subsequently used for monitoring the data quality and reconstructing the event features (including the event energy). Eventually the data surviving the quality cuts are used for the physical analysis.

This work was supported by BMBF (05A11W01) and by the Munich Cluster of Excellence “Origin and Structure of the Universe”.

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