Abstract

The GERmanium Detector Array, GERDA, is designed to search for 'neutrinoless double beta decay' (0v2ß) in 76Ge. The high-purity segmented Ge detectors will be directly submerged and operated in liquid N2 or Ar. The measurement of the half-life time of 0v2ß decay will provide information about the absolute neutrino mass scale and indirectly, the hierarchy. The design goal of GERDA is to reach a sensitivity of 0.2 eV on the effective Majorana neutrino mass (mßß). The GERDA experiment is located in hall A of the Grand Sasso national lab (LNGS) and the construction will start in 2006.JRC.D.4-Isotope measurement

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