Abstract

The NEMO 3 detector is devoted to the search for neutrinoless double-beta decay (ββ0ν). The expected performance of the detector has successfully achieved after the operation of a radon free air facility. Half-lives of double beta decay with two neutrinos (ββ2ν) have been measured systematically for the 7 major nuclei (100Mo 82Se, 116Cd 150Nd, 96Zr, 48Ca, 130Te). There is no evidence of ββ0ν, and the corresponding lower limits for the half-lives are T0ν1/2 (100Mo) > 5.8 × 10 23y and T0ν1/2 (82Se) > 2.1 × 10 23y at 90% C.L.

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