Off-shell properties of individual partial waves of the nucleon-alpha potential are systematically investigated by nucleon-nucleon-alpha Faddeev calculations. For this purpose, the ground state energies of ${}_{}{}^6{}_{}{}^{}\mathrm{Li}$ and ${}_{}{}^6{}_{}{}^{}\mathrm{He}$ and the observables of the d-α scattering system at $E_{\alpha }$=15 and 24 MeV (lab) are calculated and compared with experiment. From inspection of the nucleon-alpha wave functions, a suitable short range behavior can be proposed.

• Received 23 June 1987

DOI:https://doi.org/10.1103/PhysRevC.36.1692