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Title: Search for neutrinoless double-beta decay of Mo 100 with the NEMO-3 detector

Abstract

We report the results of a search for the neutrinoless double-ß decay (0?ßß ) of Mo 100 , using the NEMO-3 detector to reconstruct the full topology of the final state events. With an exposure of 34.7??kg·y , no evidence for the 0?ßß signal has been found, yielding a limit for the light Majorana neutrino mass mechanism of T 1/2 (0?ßß)>1.1×10 24 years (90% C.L.) once both statistical and systematic uncertainties are taken into account. Depending on the nuclear matrix elements this corresponds to an upper limit on the Majorana effective neutrino mass of ?m ? ?<0.3–0.9??eV (90% C.L.). Constraints on other lepton number violating mechanisms of 0?ßß decays are also given. Searching for high-energy double electron events in all suitable sources of the detector, no event in the energy region [3.2–10] MeV is observed for an exposure of 47??kg·y .

Authors:
;
Publication Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1149035
Report Number(s):
INL/JOU-14-32767
DOE Contract Number:  
DE-AC07-05ID14517
Resource Type:
Journal Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 89; Journal Issue: 11
Country of Publication:
United States
Language:
English
Subject:
99 GENERAL AND MISCELLANEOUS; double-beta decay

Citation Formats

Baker, John D., and Caffrey, A. J. Search for neutrinoless double-beta decay of Mo 100 with the NEMO-3 detector. United States: N. p., 2014. Web.
Baker, John D., & Caffrey, A. J. Search for neutrinoless double-beta decay of Mo 100 with the NEMO-3 detector. United States.
Baker, John D., and Caffrey, A. J. 2014. "Search for neutrinoless double-beta decay of Mo 100 with the NEMO-3 detector". United States.
@article{osti_1149035,
title = {Search for neutrinoless double-beta decay of Mo 100 with the NEMO-3 detector},
author = {Baker, John D. and Caffrey, A. J.},
abstractNote = {We report the results of a search for the neutrinoless double-ß decay (0?ßß ) of Mo 100 , using the NEMO-3 detector to reconstruct the full topology of the final state events. With an exposure of 34.7??kg·y , no evidence for the 0?ßß signal has been found, yielding a limit for the light Majorana neutrino mass mechanism of T 1/2 (0?ßß)>1.1×10 24 years (90% C.L.) once both statistical and systematic uncertainties are taken into account. Depending on the nuclear matrix elements this corresponds to an upper limit on the Majorana effective neutrino mass of ?m ? ?<0.3–0.9??eV (90% C.L.). Constraints on other lepton number violating mechanisms of 0?ßß decays are also given. Searching for high-energy double electron events in all suitable sources of the detector, no event in the energy region [3.2–10] MeV is observed for an exposure of 47??kg·y .},
doi = {},
url = {https://www.osti.gov/biblio/1149035}, journal = {Physical Review D},
number = 11,
volume = 89,
place = {United States},
year = {Sun Jun 01 00:00:00 EDT 2014},
month = {Sun Jun 01 00:00:00 EDT 2014}
}