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arXiv · 1211.5659

First Direct Double-Beta Decay Q-value Measurement of 82Se in Support of Understanding the Nature of the Neutrino

David L. Lincoln·Jason D. Holt·Georg Bollen·Maxime Brodeur·Scott Bustabad·Jonathan Engel·Samuel J. Novario·Matthew Redshaw·Ryan Ringle·Stefan Schwarz
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Abstract

In anticipation of results from current and future double-beta decay studies, we report a measurement resulting in a 82Se double-beta decay Q-value of 2997.9(3) keV, an order of magnitude more precise than the currently accepted value. We also present preliminary results of a calculation of the 82Se neutrinoless double-beta decay nuclear matrix element that corrects in part for the small size of the shell model single-particle space. The results of this work are important for designing next generation double-beta decay experiments and for the theoretical interpretations of their observations.

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David L. Lincoln, Jason D. Holt, Georg Bollen, Maxime Brodeur, Scott Bustabad, Jonathan Engel, Samuel J. Novario, Matthew Redshaw, Ryan Ringle, Stefan Schwarz. 2012-11-24. First Direct Double-Beta Decay Q-value Measurement of 82Se in Support of Understanding the Nature of the Neutrino. https://doi.org/10.1103/physrevlett.110.012501

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