Double Beta-Decay of ⁸²Se and ¹³⁰Te
The isotopic compositions of xenon and krypton in the mineral kitkaite, NiTeSe, were measured to determine the amounts of radiogenic 82Kr and 130Xe produced by the double-beta decay of 82Se and 130Te, respectively. From the ratio of radiogenic 82Kr to radiogenic 130Xe in this mineral, it is concluded that the half-life of 130Te is larger than that of 82Se by a factor of 7.3 ± 0.9. If the age of the host rock, 2.00 × 109 y, is taken as an upper limit on the gas-retention age of the mineral, then values of (1.25 ± 0.08) × 1021y and (1.72 ± 0.19) × 1020y are obtained as upper limits on the half-lives of 130Te and 82Se respectively. A more realistic upper limit of T82 1 2 ≤ (1.4 ± 0.2) × 1020y is obtained from these results and those of a recent measurement here indicating T8130 1 2 ≤ 1 × 1021y.
W. Lin et al., "Double Beta-Decay of ⁸²Se and ¹³⁰Te," Nuclear Physics A, vol. 457, pp. 285 - 291, Elsevier, Sep 1986.
The definitive version is available at https://doi.org/10.1016/0375-9474(86)90378-7
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© 1986 Elsevier, All rights reserved.
01 Sep 1986