Abstract
The -decay half-life of has been measured for the first time at the ISOLDE PSB Facility at CERN. Mass separated ions were produced by 1 GeV proton-induced spallation reactions in a Nb foil. The measured half-life is 57(21) ms. This value is consistent with the half-life calculated assuming a pure Fermi decay, but is clearly lower than the value used in a recent rp-process reaction flow calculation. The result shows that the reaction flow via two-proton-capture of is 2.5 times faster than previously calculated assuming an astrophysical temperature of 1.5 GK and a density of
- Received 1 June 1999
DOI:https://doi.org/10.1103/PhysRevC.61.035801
©2000 American Physical Society