Arnold, R;
Augier, C;
Baker, J;
Barabash, A;
Broudin, G;
Brudanin, V;
Caffrey, AJ;
... Vylov, T; + view all
(2005)
First results of the search for neutrinoless double-beta decay with the NEMO 3 detector.
PHYS REV LETT
, 95
(18)
, Article 182302. 10.1103/PhysRevLett.95.182302.
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Abstract
The NEMO 3 detector, which has been operating in the Frejus underground laboratory since February 2003, is devoted to the search for neutrinoless double-beta decay (beta beta 0 nu). The half-lives of the two neutrino double-beta decay (beta beta 2 nu) have been measured for Mo-100 and Se-82. 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 similar to 7 kg of Mo-100 and similar to 1 kg of Se-82. The corresponding limits are T-1/2(beta beta 0 nu)> 4.6x10(23) yr for Mo-100 and T-1/2(beta beta 0 nu)> 1.0x10(23) yr for Se-82 (90% C.L.). Depending on the nuclear matrix element calculation, the limits for the effective Majorana neutrino mass are < m(nu)>< 0.7-2.8 eV for Mo-100 and < m(nu)>< 1.7-4.9 eV for Se-82.
| Type: | Article |
|---|---|
| Title: | First results of the search for neutrinoless double-beta decay with the NEMO 3 detector |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.95.182302 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.95.182302 |
| Language: | English |
| Additional information: | © 2005 The American Physical Society |
| Keywords: | MASS, GE-76, SE-82 |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/9985 |
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