Excited States of sup 96 Nb from sup 96 Zr(p,n gamma ) sup 96 Nb Reaction

摘要

The gamma -ray spectra of the sup 96 Zr(p,n gamma ) sup 96 Nb reaction were measured with Ge(Li) detectors at different bombarding proton energies between 1.3 and 5.1 MeV. gamma gamma -coincidences were observed at Esub(p) = 4.7 and 5.0 MeV. On the basis of experimental results a level scheme of sup 96 Nb was deduced, gamma -threshold energies and gamma -branching ratios were determined. Computed Hauser-Feshbach (p,n') cross sections were compared with experimental data obtained from the gamma -ray measurements, and level spins and parities were determined. The energies of sup 96 Nb levels were calculated on the basis of the parabolic rule, derived from the cluster-vibration model. The Racah multipole decomposition method was used also for the theoretical interpretation of several sup 96 Nb multiplet states. (Atomindex citation 16:033347)