Phys. Rev. Lett. 72, 1411–1414 (1994)New approach to the search for neutrinoless double beta decayReceived 9 November 1993; published in the issue dated 7 March 1994 Sub-eV Majorana neutrino masses 〈mν〉, can be explored by a new approach to neutrinoless double β decay using 136Xe in a Xe gas-loaded, multiton liquid scintillator installed in a very low background detector such as the Kamiokande facility. With enriched 136Xe, a readily implementable, 10 ton detector experiment can establish an 〈mν〉=0.45 eV at 3σ in 1 yr (or exclude an 〈mν〉<0.23 eV in 2 yr). A 100 ton detector can extend the limit to 〈mν〉<0.1 eV, compared with the present limit of 〈mν〉<1.3 eV. © 1994 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.72.1411
DOI:
10.1103/PhysRevLett.72.1411
PACS:
29.40.Mc, 14.60.Pq, 23.40.Bw
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