2007/06/30 by A. C. Larsen, M. Guttormsen, R. Chankova +9
Physics and Astronomy · #Astronomical and nuclear sciences #Nuclear physics research studies #Rare-earth and actinide compounds #nucl-ex
paper · pdf · doi:10.1103/physrevc.76.044303
published as Phys.Rev.C76:044303,2007 · 21 pages, 13 figures. Published version
openalex publication_date 2007/10/04 · arxiv created 2008/01/22 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The scandium isotopes 44,45Sc were studied with the 45Sc(3He, \ensuremathα\ensuremathγ)44Sc and 45Sc(3He, 3He'\ensuremathγ)45Sc reactions, respectively. The nuclear level densities and \ensuremathγ-ray strength functions have been extracted using the Oslo method. The experimental level densities are compared to calculated level densities obtained from a microscopic model based on BCS quasiparticles within the Nilsson level scheme. This model also gives information about the parity distribution and the number of broken Cooper pairs as a function of excitation energy. The experimental \ensuremathγ-ray strength functions are compared to theoretical models of the E1, M1, and E2 strength and to data from (\ensuremathγ, n) and (\ensuremathγ,p) experiments. The strength functions show an enhancement at low \ensuremathγ energies that cannot be explained by the present standard models.