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Double Beta Decays of Mo-100 and Nd-150

A. De Silva·M. K. Moe·M. A. Nelson·M. A. Vient
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Abstract

The double beta decays of Mo-100 and Nd-150 were studied in a time projection chamber located 72 m underground. A 3275 h exposure of a 16.7 g sample of metallic Mo enriched to 97.4 % in Mo-100 resulted in a two-neutrino half-life of (6.82 + 0.38 - 0.53 +/- 0.68) * 10**18 y. Similarly, a 6287 h exposure of 15.5 g of Nd2O3 enriched to 91 % in Nd-150 yielded (6.75 + 0.37 - 0.42 +/- 0.68) * 10**18 y. Lower limits on half-lives for neutrinoless decay with and without majoron emission also have been measured.

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A. De Silva, M. K. Moe, M. A. Nelson, M. A. Vient. 1997-06-12. Double Beta Decays of Mo-100 and Nd-150. https://doi.org/10.1103/physrevc.56.2451

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