Search for the β decay of 96 Zr

Published

Journal Article

© 2015 Elsevier B.V. All rights reserved. 96Zr and 48Ca are unique among double-β decay candidate nuclides in that they may also undergo single-β decay. In the case of 96Zr, the single-β decay mode is dominated by the fourth-forbidden β decay with a 119 keV Q value. A search was conducted for the β decay of 96Zr by observing the decay of the daughter 96Nb nucleus. Two coaxial high-purity germanium detectors were used in coincidence to detect the γ-ray cascade produced by the daughter nucleus as it de-excited to the ground state. The experiment was carried out at the Kimballton Underground Research Facility and produced 685.7 days of data with a 17.91 g enriched sample. No counts were seen above background, producing a limit of T1/2>2.4×1019year. This is the first experimental search that is able to discern between the β decay and the double-β decay to an excited state of 96Zr.

Full Text

Duke Authors

Cited Authors

  • Finch, SW; Tornow, W

Published Date

  • January 11, 2016

Published In

Volume / Issue

  • 806 /

Start / End Page

  • 70 - 74

International Standard Serial Number (ISSN)

  • 0168-9002

Digital Object Identifier (DOI)

  • 10.1016/j.nima.2015.09.098

Citation Source

  • Scopus