Limit on neutrinoless ββ decay of 136Xe from the first phase of KamLAND-Zen and comparison with the positive claim in 76Ge.

A, Gando; Y, Gando; H, Hanakago; H, Ikeda; K, Inoue; K, Ishidoshiro; R, Kato; M, Koga; S, Matsuda; T, Mitsui; D, Motoki; T, Nakada; K, Nakamura; A, Obata; A, Oki; Y, Ono; M, Otani; I, Shimizu; J, Shirai; A, Suzuki; Y, Takemoto; K, Tamae; K, Ueshima; H, Watanabe; BD, Xu; S, Yamada; H, Yoshida; A, Kozlov; S, Yoshida; TI, Banks; SJ, Freedman; BK, Fujikawa; K, Han; T, O'Donnell; BE, Berger; Y, Efremenko; HJ, Karwowski; DM, Markoff; W, Tornow; JA, Detwiler; S, Enomoto; MP, Decowski

doi:10.1103/physrevlett.110.062502

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Limit on neutrinoless ββ decay of 136Xe from the first phase of KamLAND-Zen and comparison with the positive claim in 76Ge.

Shared by NobleBlocks on Feb 7, 2013 • 12:00 AM UTC

Authors:

Gando A

Gando Y

Hanakago H

Abstract

We present results from the first phase of the KamLAND-Zen double-beta decay experiment, corresponding to an exposure of 89.5 kg yr of (136)Xe. We obtain a lower limit for the neutrinoless double-beta decay half-life of T(1/2)(0ν)>1.9×10(25) yr at 90% C.L. The combined results from KamLAND-Zen and E...

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