Results on neutrinoless double beta decay of 76Ge from GERDA Phase I

2nd Workshop on Germanium Detectors and Technologies

Palioselitis, Dimitrios^1

Max-Planck-Institut für Physik, München, Germany^1

关键词: During phase;    Germanium detector;    Gran Sasso National Laboratory;    Half lives;    Liquid argon;    Lower limits;    Neutrinoless double-beta decays;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/606/1/012006/pdf
DOI  :  10.1088/1742-6596/606/1/012006

来源: IOP

【 摘 要 】

The Germanium Detector Array (GERDA) experiment is searching for the neutrinoless double beta (0νββ) decay of76Ge by operating bare germanium diodes in liquid argon. GERDA is located at the Gran Sasso National Laboratory (LNGS) in Italy. During Phase I, a total exposure of 21.6 kg yrand a background index of 0.01 cts/(keVkg yr) were reached. No signal was observed and a lower limit of T0ν1/2> 2.1 • 1025yr(90% C.L.) is derived for the half life of the 0νββ decay of76Ge.