Abstract
We develop a new ab initio many-body approach capable of describing simultaneously both bound and scattering states in light nuclei, by combining the resonating-group method with the use of realistic interactions, and a microscopic and consistent description of the nucleon clusters. This approach preserves translational symmetry and the Pauli principle. We outline technical details and present phase-shift results for neutron scattering on , , and and proton scattering on , using realistic nucleon-nucleon () potentials. Our scattering results are compared to earlier ab initio calculations. We find that the CD-Bonn potential in particular provides an excellent description of nucleon--wave phase shifts. In contrast, the experimental nucleon--wave phase shifts are not well reproduced by any potential we use. We demonstrate that a proper treatment of the coupling to the continuum is successful in explaining the parity-inverted ground state in .
11 More- Received 7 January 2009
DOI:https://doi.org/10.1103/PhysRevC.79.044606
©2009 American Physical Society