title: First direct double-β decay Q-value measurement of 82Se in support of understanding the nature of the neutrino.
abstract: In anticipation of results from current and future double-β decay studies, we report a measurement resulting in a (82)Se double-β 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 (82)Se neutrinoless double-β 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-β decay experiments and for the theoretical interpretations of their observations.
authors: Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA. lincoln@nscl.msu.edu
authors: David L
authors: DL
authors: Lincoln
authors: Jason D
authors: JD
authors: Holt
authors: Georg
authors: G
authors: Bollen
authors: Maxime
authors: M
authors: Brodeur
authors: Scott
authors: S
authors: Bustabad
authors: Jonathan
authors: J
authors: Engel
authors: Samuel J
authors: SJ
authors: Novario
authors: Matthew
authors: M
authors: Redshaw
authors: Ryan
authors: R
authors: Ringle
authors: Stefan
authors: S
authors: Schwarz