Nucleon-nucleus optical potential in the particle-hole approach

Abstract

Feshbach's projection formalism in the particle-hole model space leads to a microscopic description of scattering in terms of the many-body self-energy. To investigate the feasibility of this approach, an optical potential for O-16 is constructed starting from two previous calculations of the self-energy for this nucleus. The results reproduce the background phase shifts for positive parity waves and the resonances beyond the mean field. The latter can be computed microscopically for energies of astrophysical interest using Green's function theory.

8 pages, 6 figures. Submitted to Phys. Rev. C

References in corpus (4)

• Self-consistent Green's function method for nuclei and nuclear matter
• Ab initio shell model with a genuine three-nucleon force for the p-shell nuclei
• Effective interactions and the nuclear shell-model
• Extension of the Random Phase Approximation including the self-consistent coupling to two-phonon contributions

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