Abstract
We report on the observation of excited states in the neutron-deficient phosphorus isotopes via in-beam -ray spectroscopy with both high-efficiency and high-resolution detector arrays. In , a previously unobserved level has been identified at 244(3) keV, two new measurements of the astrophysically important resonance in have been performed, decays have been assigned to the proton-unbound levels at 2216 and 2483 keV in , and the -ray line-shape method has been used to make the first determination of the lifetimes of the two lowest-lying excited states in . The expected Thomas-Ehrman shifts were calculated and applied to levels in the mirror nuclei. The resulting level energies from this procedure were then compared with the energies of known states in .
- Received 11 April 2019
DOI:https://doi.org/10.1103/PhysRevC.99.064330
©2019 American Physical Society