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Publication  > Articles in Impacted Journals  > 'First results of the search for neutrinoless double beta decay with the NEMO 3 detector'
First results of the search for neutrinoless double beta decay with the NEMO 3 detector

Author
NEMO Collaboration  NEMO Collaboration

Year
2005

Scientific journal
Phys. Rev. Lett. 95 (2005) 182302


Abstract
The NEMO 3 detector, which has been operating in the Fréjus underground laboratory since February 2003, is devoted to the search for neutrinoless double-beta decay (ββ0ν). The half-lives of the two neutrino double-beta decay (ββ2ν) have been measured for 100Mo and 82Se. After 389 effective days of data collection from February 2003 until September 2004 (phase I), no evidence for neutrinoless double-beta decay was found from ∼7 kg of 100Mo and ∼1 kg of 82Se. The corresponding limits are T1/2(ββ0ν)>4.6×1023 yr for 100Mo and T1/2(ββ0ν)>1.0×1023 yr for 82Se (90% C.L.). Depending on the nuclear matrix element calculation, the limits for the effective Majorana neutrino mass are 〈mν〉 < 0.7 — 2.8 eV for 100Mo and 〈mν〉 < 1.7 — 4.9 eV for 82Se.

Cite article as:
. NEMO Collaboration, "First results of the search for neutrinoless double beta decay with the NEMO 3 detector", Phys. Rev. Lett. 95 (2005) 182302 (2005)

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