Macolino, C. (2014) Neutrinoless double beta decay in GERDA Phase II. Il nuovo cimento C, 37 (4). pp. 119-128. ISSN 1826-9885
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Abstract
The GERmanium Detector Array, GERDA, is designed to search for neutrinoless double beta (0νββ) decay of 76Ge and it is installed in the Laboratori Nazionali del Gran Sasso (LNGS) of INFN, Italy. The GERDA experiment has completed the Phase I with a total collected exposure of 21.6 kg yr and a background index (BI) of the order of BI 10−2 cts/(keV kg yr). No excess of events from 0νββ decay has been observed and a lower limit on the half-life on the 0νββ decay for 76Ge has been estimated: T 0ν 1/2 > 2.1·1025 yr at 90% CL. The goal of GERDA Phase II is to reach the target sensitivity of T 0ν 1/2 1.4 · 1026 yr, with an increased total mass of the enriched material and a reduced background level. In this paper the results from GERDA Phase I and the major improvements planned for Phase II are discussed.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Neutrino mass and mixing ; β decay; double β decay; electron and muon capture |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 19 May 2020 16:01 |
| Last Modified: | 19 May 2020 16:01 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/18645 |
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