Abstract
The α decay of has been observed for the first time in reactions of 300 MeV ions with an isotopically enriched target. The ions were separated in-flight using the RITU separator and implanted into the GREAT spectrometer. The α decay emanates from the proton-emitting state in with an energy of keV and a branching ratio of 7.5 ± 3.5%. This α decay populates a state in the closed neutron shell nucleus , which decays by emitting 1444 ± 15 keV protons with a half-life of ms. These values are consistent with the emission of the proton from a orbital. These results fit in with the systematics of proton and α-particle separation energies in the region, but disagree with the previously reported decay properties of .
- Received 14 March 2007
DOI:https://doi.org/10.1103/PhysRevC.75.061302
©2007 American Physical Society