Microscopic optical potential obtained from energy-density-functional approach for neutron-nucleus elastic scattering

作者：Nhan Hao T V; Nhu Le N; Koh Meng Hock; Quang Hung N; Ngoc Duy N; Pham Vinh N T; Hoang Tung N

来源：International Journal of Modern Physics E-Nuclear Physics, 2018, 27(6): 1850052.

DOI：10.1142/S0218301318500520

• Microscopic optical potential
• elastic scattering
• double-magic nuclei
• particle-vibration coupling
• random phase approximation
• low-energy

Nucleon-nucleus (NA) optical potentials are microscopically generated from a fully self-consistent framework of the particle-vibration coupling (PVC), in which the nucleon-nucleon (NN) effective interaction of the Skyrme type is consistently used to describe the Hartree-Fock (HF) mean-field, the small amplitude collective motions of the target, and the particle-collective states coupling. For the first time, a systematic calculation of low-energy NA elastic scattering off a series of doubly closed-shell nuclei is carried out without ad hoc adjusted parameters. Angular distributions obtained using the present optical potentials are in good agreement with the experimental data. This will be a major step forward in the applications of the Skyrme energy-density-functional theory to build up the global microscopic optical potentials, which are expected to be a powerful tool for the study of unstable (exotic) nuclei at low-incident nucleon energies.

• 出版日期2018-6