Abstract
The reaction has been used to study the mean lives, branching ratios, and excitation energies of several of the levels of . The Doppler-shift attenuation method was used to obtain the following information concerning the mean lives of the low-lying levels in : sec, sec, sec, sec, and sec. In addition, upper limits were found for levels at 2.04, 2.19, 2.96, 3.49, and 3.53 MeV. A previously unreported branching ratio of the 2.96-MeV level was found to be (2.96→ 0.0 MeV) 0.24±0.03, (2.96→0.66 MeV) 0.14±0.02, and (2.96→0.82 MeV) 0.62±0.06. A value of is suggested for the spin and parity of the 0.66-MeV level.
- Received 21 May 1969
DOI:https://doi.org/10.1103/PhysRev.186.1167
©1969 American Physical Society