Investigation of gamma-ray transitions in56Ni
AbstractAngular correlation measurements for the54Fe(3He,n γ)56Ni reaction were performed at
$$E_{3_{He} } = 12.5$$
 MeV. Method II of Litherland and Ferguson was used to determine the multipole mixing ratio of theγ-radiation and the spins of the excited levels at 3925 and 3956 keV. As the most probable spin assignments we deduced 4+ (3925 keV) and 0+ (1,2) (3956 keV). The mixing ratio found for the 1225 keV transition from 4+→21+ isδ(M3/E2)=+0.21−0.16+0.23 This result is compared with a shell model calculation.