Status of the Germanium Detector Array (GERDA) in the search of neutrinoless ββ decays of 76Ge at LNGS |
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| Institution: | (1) Max-Planck-Institut für Kernphysik, Heidelberg, Germany;(2) Max-Planck-Institut für Physik, München, Germany;(3) Russian Research Center Kurchatov Institute, Moscow, Russia;(4) Institute for Nuclear Research, Russian Academy of Sciences, Moscow, Russia;(5) Physikalisches Institut, Universit?t Tübingen, Germany;(6) Università di Milano Bicocca e INFN Milano, Italy;(7) Institute of Theoretical and Experimental Physics, Moscow, Russia;(8) Dipartimento di Fisica dell’Università di Padova e INFN Padova, Italy;(9) Joint Institute for Nuclear Research, Dubna, Moscow oblast, Russia;(10) INFN Laboratori Nazionali del Gran Sasso, Assergi, Italy;(11) Institut für Kernphysik, Universit?t K?ln, Germany;(12) Institute for Reference Materials and Measurements, Geel, Belgium;(13) Jagiellonian University, Krakow, Poland |
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| Abstract: | The Germanium Detector Array (GERDA) in the search for neutrinoless ββ decays of 76Ge at LNGS will operate bare germanium diodes enriched in 76Ge in an (optional active) cryogenic fluid shield to investigate neutrinoless ββ decay with a sensitivity of T
1/2 > 2 × 1026 yr after an exposure of 100 kg yr. Recent progress includes the installation of the first underground infrastructures at
Gran Sasso, the completion of the enrichment of 37.5 kg of germanium material for detector construction, prototyping of low-mass
detector support and contacts, and front-end and DAQ electronics, as well as the preparation for construction of the cryogenic
vessel and water tank.
GERDA Collaboration |
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