First results of neutrinoless double beta decay search with the GERmanium Detector Array “GERDA”
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ID: 270487
2014
The study of neutrinoless double beta decay is the most powerful approach to the fundamental question if the neutrino is a Majorana particle, i.e. its own anti-particle. The observation of the lepton number violating neutrinoless double beta decay would establish the Majorana nature of the neutrino. Until now neutrinoless double beta decay was not observed. The GERmanium Detector Array, GERDA is a double beta decay experiment located at the INFN Gran Sasso National Laboratory, Italy. GERDA operates bare Ge diodes enriched in 76Ge in liquid argon supplemented by a water shield. The exposure accumulated adds up to 21.6 kg· yr with a background level of 1.8 · 10−2 cts/(keV·kg·yr). The results of the Phase I of the experiment are presented and the preparation of the Phase II is briefly discussed.
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| Authors | József Janicskó Csáthy,for the GERDA collaboration,P-G Rancoita,R Ruchti,S Giani,C Leroy,L Price;József Janicskó Csáthy;for the GERDA collaboration;P-G Rancoita;R Ruchti;S Giani;C Leroy;L Price; |
| Journal | Astroparticle, Particle, Space Physics and Detectors for Physics Applications |
| Year | 2014 |
| DOI | 10.1142/9789814603164_0039 |
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