Journal
PHYSICAL REVIEW LETTERS
Volume 108, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.108.062502
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Funding
- German Federal Ministry for Education and Research (BMBF) [06DD9054, 06GF186I]
- Max-Planck Society
- French IN2P3
- DIUC [211.011.055-1.0]
- Universidad de Concepcion, Chile
- U.S. DOE [DE-FG-02-91ER-40608]
- ISOLDE Collaboration
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The Pd-110 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 with 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) x 10(20) yr. With its high natural abundance, the new results reveal Pd-110 to be an excellent candidate for double-beta decay studies.
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