Publication Type
Journal
Journal Name
Physical Review C
Publication Date
Page Number
1
Volume
90
Issue
044323
Abstract
Low-spin single quasineutron levels in 153Gd and 157Gd have been studied following the 154Gd(p,d-γ)153Gd and 158Gd(p,d-γ)157Gd reactions. A combined Si telescope and high-purity germanium array was utilized, allowing d-γ and d-γ -γ coincidence measurements. Almost all of the established low-excitation-energy, low-spin structures were confirmed in both 153Gd and 157Gd. Several new levels and numerous new γ rays are observed in both nuclei, particularly for Ex > 1 MeV. Residual effects of a neutron subshell closure at N = 64 are observed in the form of a large excitation energy gap in the single quasineutron level schemes.
