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HK: Fachverband Physik der Hadronen und Kerne

HK 61: Astroparticle Physics 4

HK 61.1: Gruppenbericht

Donnerstag, 26. März 2015, 17:00–17:30, M/HS4

Search for the neutrinoless double beta decay (0νββ) of ⁷⁶Ge: GERDA Phase II commissioning — •Tobias Bode for the GERDA collaboration — Physik-Department E15, Technische Universität München, Deutschland

After successful completion of Phase I the Gerda (Germanium Detector Array) experiment underwent a major upgrade of the experimental apparatus. These upgrades include additional 20 kg of custom-made detectors with improved background rejection capabilities, accompanied by improved front-end electronics and an active liquid argon scintillation light veto. A sensitivity on the neutrinoless double beta decay half-life (T_1/2^0ν) of 10²⁶ yr should be reached after a few years of data taking (Phase II). First results of Phase II commissioning and latest results from Phase I analyses will be presented in this talk. This work was partly funded by BMBF 05A14W03.