arXiv:1112.5786·v1·Nuclear Experiment
Q-Value and Half-Lives for the Double-Beta-Decay Nuclide 110Pd
D. Fink🇩🇪 · J. Barea🇨🇱 · D. Beck🇩🇪 · K. Blaum🇩🇪 · Ch. Böhm🇩🇪 · Ch. Borgmann🇩🇪 · M. Breitenfeldt🇧🇪 · F. Herfurth🇩🇪 · A. Herlert🇨🇭 · J. Kotila🇺🇸 · M. Kowalska🇩🇪 · S. Kreim🇩🇪
Abstract
The 110Pd double-beta decay Q-value was measured with the Penning-trap mass spectrometer ISOLTRAP to be Q = 2017.85(64) keV. This value shifted by 14 keV compared to the literature value and is 17 times more precise, resulting in new phase-space factors for the two-neutrino and neutrinoless decay modes. In addition a new set of the relevant matrix elements has been calculated. The expected half-life of the two-neutrino mode was reevaluated as 1.5(6) E20 yr. With its high natural abundance, the new results reveal 110Pd to be an excellent candidate for double-beta decay studies.