Abstract
The decay of to levels of has been studied with a large-volume Ge(Li) detector and a gas-flow proportional counter. The was produced via the reaction by bombardment of NaCl and LiCl targets with 16-MeV tritons, and was chemically separated by conversion to phosphate ion and adsorption on a selective polyvalent anion exchanger. The half-life was measured to be 47.4 ± 0.8 sec. Only one transition was observed, at 1572.2 ± 0.4 keV. The decays % () to the 1572-keV first excited level of and <9% () to the ground state, whence its spin-parity is deduced to be . Less than 0.45% of the transitions proceed to any of the other known levels. The results are compared with the predictions of a recent shell-model treatment.
- Received 5 June 1972
DOI:https://doi.org/10.1103/PhysRevC.6.842
©1972 American Physical Society