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Search for neutrinoless double beta decay with NEMO-3 using 150ND

Abstract : The NEMO-3 detector looks for neutrinoless double beta decay from 10 kg of enriched ββ emiters. Using 440 days of data, background measurements give activities from each contribution from Neodinium foil. During the same period of data acquisition, preliminary study gives the half-life of the 2νββ process : T1/2(2ν) = (9.75 ±0.35(stat.) ±0.85(syst.))1018years. Up to now, no evidence of lepton number violation has been observed. A limit on the half-life of the neutrinoless process has been obtained : T1/2(0ν) > 8.0 1021 y at 90% CL.
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http://hal.in2p3.fr/in2p3-00406114
Contributor : Sandrine Guesnon <>
Submitted on : Tuesday, July 21, 2009 - 2:44:46 PM
Last modification on : Tuesday, February 19, 2019 - 10:56:08 AM

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  • HAL Id : in2p3-00406114, version 1

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Y. Lemière. Search for neutrinoless double beta decay with NEMO-3 using 150ND. 2008 Electroweak Interactions and Unified Theories, Mar 2008, La Thuile, Italy. pp.585-588. ⟨in2p3-00406114⟩

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