Abstract
The () reaction has been performed at 25 MeV incident energy, on a rare target (35%) and on targets of (57%) and natural Pt. In , eleven levels are observed up to 600 keV. In , 18 levels are observed, four for the first time, up to 925 keV. Mass excesses are deduced for , , , and . Comparison of the experimental angular distributions with distorted-wave Born approximation calculations allows the determination of parity and spin limits for most of the final levels. Spectroscopic factors are deduced. Comparison with preceding experiments on heavier isotopes shows a smooth variation for the observed strengths between and , with a minimum fragmentation of the strength in .
NUCLEAR REACTIONS , MeV; deduced mass excesses; measured ; deduced levels, , , , .
- Received 8 May 1980
DOI:https://doi.org/10.1103/PhysRevC.22.997
©1980 American Physical Society