Measurement of the branching ratio of the He6 β-decay channel into the α+d continuum

  • Raabe
  • , Büscher
  • , Ponsaers
  • , Aksouh
  • , M. Huyse
  • , Ivanov
  • , S. R. Lesher
  • , I. Mukha
  • , D. Pauwels
  • , Sawicka
  • , Smirnov
  • , I. Stefanescu
  • , Van De Walle
  • , P. Van Duppen
  • , Angulo
  • , Cabrera
  • , De Séréville
  • , Martel
  • , Sánchez-Benítez
  • , Diget

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

We measured the deuteron-emission branch of the β decay of the halo nucleus He6 using the technique of implantation into a highly segmented silicon detector. The method, used here for the first time with a beam of He6 ions, ensures precise normalization; the value obtained for the branching ratio is B̄=(1.65±0.10)×10-6 (6% error). The summed energy spectra of the emitted α and d particles has also been measured. The results allow us to compare calculations from various models, potentially setting strong constraints on the precision required for the description of the He6 ground-state wave function. © 2009 The American Physical Society.
Original languageEnglish
Article number054307
JournalPhysical Review C - Nuclear Physics
Volume80
Issue number5
DOIs
StatePublished - Nov 16 2009

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