2019/03/31 by A. Idini, C. Barbieri, P. Navrátil · 1 citation
Physics and Astronomy · #nucl-th
paper · pdf · doi:10.1103/physrevlett.123.092501
published as Phys. Rev. Lett. 123, 092501 (2019)
arxiv created 2019/07/15 · arxiv updated 2019/09/04
We derive ab initio optical potentials from self-consistent Green's function (SCGF) theory and compute the elastic scattering of neutrons off oxygen and calcium isotopes. The comparison with scattering data is satisfactory at low scattering energies. The method is benchmarked against no-core shell model with continuum (NCSMC) calculations, showing that virtual excitations of the target are crucial to predict proper fragmentation and absorption at higher energies. This is a significant step toward deriving optical potentials for medium mass nuclei and complex many-body systems in general.