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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 D. Lunney 1 S. Naimi 1 M. Rosenbusch S. Schwarz L. Schweikhard F. Simkovic J. Stanja K. Zuber
CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, CSNSM - Centre de Sciences Nucléaires et de Sciences de la Matière : UMR8609
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.
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Submitted on : Tuesday, February 28, 2012 - 2:13:51 PM
Last modification on : Wednesday, September 16, 2020 - 5:43:39 PM

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D. Fink, J. Barea, D. Beck, K. Blaum, Ch. Böhm, et al.. Q-Value and Half-Lives for the Double-Beta-Decay Nuclide 110Pd. Physical Review Letters, American Physical Society, 2012, 108, pp.062502. ⟨10.1103/PhysRevLett.108.062502⟩. ⟨in2p3-00674899⟩



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