Nucleon-nucleus optical potential in the particle-hole approach

Details Nucleon-nucleus optical potential in the particle-hole approach Nucleon-nucleus optical potential in the particle-hole approach

2005-01-27

arxiv.org/abs/nucl-th/0501072v1

Phys.Rev. C72 (2005) 014613

Physics

Nuclear Physics

Nuclear Theory

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

Scientific paper

10.1103/PhysRevC.72.014613

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.

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