Phys. Rev. C 76, 044303 (2007) [11 pages]Nuclear level densities and γ-ray strength functions in 44,45ScReceived 29 May 2007; published 4 October 2007 The scandium isotopes 44,45Sc were studied with the 45Sc(3He, αγ)44Sc and 45Sc(3He, 3He'γ)45Sc reactions, respectively. The nuclear level densities and γ-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 γ-ray strength functions are compared to theoretical models of the E1, M1, and E2 strength and to data from (γ, n) and (γ,p) experiments. The strength functions show an enhancement at low γ energies that cannot be explained by the present standard models. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.76.044303
DOI:
10.1103/PhysRevC.76.044303
PACS:
21.10.Ma, 24.10.Pa, 25.55.Hp, 27.40.+z
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.