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Measurement of the double-β decay half-life of 136Xe with the KamLAND-Zen experiment

Publication ,  Journal Article
Gando, A; Gando, Y; Hanakago, H; Ikeda, H; Inoue, K; Kato, R; Koga, M; Matsuda, S; Mitsui, T; Nakada, T; Nakamura, K; Obata, A; Oki, A ...
Published in: Physical Review C - Nuclear Physics
April 19, 2012

We present results from the KamLAND-Zen double-beta decay experiment based on an exposure of 77.6 days with 129 kg of 136Xe. The measured two-neutrino double-beta decay half-life of 136Xe is T1/22ν=2.38±0.02(stat) ±0.14(syst)×1021 yr, consistent with a recent measurement by EXO-200. We also obtain a lower limit for the neutrinoless double-beta decay half-life, T1/20ν>5.7×1024 yr at 90% confidence level (C. L.), which corresponds to almost a fivefold improvement over previous limits. © 2012 American Physical Society.

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Published In

Physical Review C - Nuclear Physics

DOI

EISSN

1089-490X

ISSN

0556-2813

Publication Date

April 19, 2012

Volume

85

Issue

4

Related Subject Headings

  • Nuclear & Particles Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
 

Citation

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Gando, A., Gando, Y., Hanakago, H., Ikeda, H., Inoue, K., Kato, R., … Decowski, M. P. (2012). Measurement of the double-β decay half-life of 136Xe with the KamLAND-Zen experiment. Physical Review C - Nuclear Physics, 85(4). https://doi.org/10.1103/PhysRevC.85.045504
Gando, A., Y. Gando, H. Hanakago, H. Ikeda, K. Inoue, R. Kato, M. Koga, et al. “Measurement of the double-β decay half-life of 136Xe with the KamLAND-Zen experiment.” Physical Review C - Nuclear Physics 85, no. 4 (April 19, 2012). https://doi.org/10.1103/PhysRevC.85.045504.
Gando A, Gando Y, Hanakago H, Ikeda H, Inoue K, Kato R, et al. Measurement of the double-β decay half-life of 136Xe with the KamLAND-Zen experiment. Physical Review C - Nuclear Physics. 2012 Apr 19;85(4).
Gando, A., et al. “Measurement of the double-β decay half-life of 136Xe with the KamLAND-Zen experiment.” Physical Review C - Nuclear Physics, vol. 85, no. 4, Apr. 2012. Scopus, doi:10.1103/PhysRevC.85.045504.
Gando A, Gando Y, Hanakago H, Ikeda H, Inoue K, Kato R, Koga M, Matsuda S, Mitsui T, Nakada T, Nakamura K, Obata A, Oki A, Ono Y, Shimizu I, Shirai J, Suzuki A, Takemoto Y, Tamae K, Ueshima K, Watanabe H, Xu BD, Yamada S, Yoshida H, Kozlov A, Yoshida S, Banks TI, Detwiler JA, Freedman SJ, Fujikawa BK, Han K, O’Donnell T, Berger BE, Efremenko Y, Karwowski HJ, Markoff DM, Tornow W, Enomoto S, Decowski MP. Measurement of the double-β decay half-life of 136Xe with the KamLAND-Zen experiment. Physical Review C - Nuclear Physics. 2012 Apr 19;85(4).

Published In

Physical Review C - Nuclear Physics

DOI

EISSN

1089-490X

ISSN

0556-2813

Publication Date

April 19, 2012

Volume

85

Issue

4

Related Subject Headings

  • Nuclear & Particles Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics