Double-$\beta$ decay nuclear structure via electron capture on $^{116}$In

ORAL

Abstract

The small electron-capture decay branch of $^{116}$In has been measured using Penning trap assisted decay spectroscopy. The deduced Gamow-Teller transition strength helps to resolve longstanding differences between scattered charge-exchange reaction values and a previous electron-capture decay value that was less statistically significant than the present one. We argue that this transition can now be used as a reliable benchmark for nuclear-structure calculations of the matrix element for the neutrinoless double-$\beta$ decay of $^{116}$Cd and other nuclides.

–

Authors

  • C. Wrede

    • Michigan State U., NSCL, and U. of Washington

  • S.K.L. Sjue

    • LANL and TRIUMF

  • A. A. Garc\'Ia

    • U. of Washington

  • H.E. Swanson

    • U. of Washington

  • I. Ahmad

    • ANL

  • A. Algora

    • IFIC (CSIC-U. Valencia)

  • V.-V. Elomaa

    • U. of Jyv{\"a}skyl{\"a}

  • T. Eronen

    • U. of Jyv{\"a}skyl{\"a}

  • J. Hakala

    • U. of Jyv{\"a}skyl{\"a}

  • A. Jokinen

    • U. of Jyv{\"a}skyl{\"a}

  • V.S. Kolhinen

    • U. of Jyv{\"a}skyl{\"a}

  • I.D. Moore

    • U. of Jyv{\"a}skyl{\"a}

  • H. Penttil{\"a}

    • U. of Jyv{\"a}skyl{\"a}

  • M. Reponen

    • U. of Jyv{\"a}skyl{\"a}

  • J. Rissanen

    • U. of Jyv{\"a}skyl{\"a}

  • A. Saastamoinen

    • U. of Jyv{\"a}skyl{\"a}

  • J. {\"A}yst{\"o}

    • U. of Jyv{\"a}skyl{\"a}