Precise half-life values for two-neutrino double-β decay

A. S. Barabash
Phys. Rev. C 81, 035501 – Published 3 March 2010

Abstract

All existing positive results on two-neutrino double-β decay in different nuclei were analyzed. Using the procedure recommended by the Particle Data Group, weighted average values for half-lives of Ca48, Ge76, Se82, Zr96, Mo100, Mo100-Ru100 (01+), Cd116, Te130, Nd150, Nd150-Sm150 (01+), and U238 were obtained. Existing geochemical data were analyzed, and recommended values for half-lives of Te128, Te130, and Ba130 are proposed. Given the measured half-life values, nuclear matrix elements were calculated. I recommend the use of these results as the most currently reliable values for the half-lives and nuclear matrix elements.

  • Received 23 December 2009

DOI:https://doi.org/10.1103/PhysRevC.81.035501

©2010 American Physical Society

Authors & Affiliations

A. S. Barabash*

  • Institute of Theoretical and Experimental Physics, B. Cheremushkinskaya 25, RU-117218 Moscow, Russia

  • *barabash@itep.ru

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Vol. 81, Iss. 3 — March 2010

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