Refinement of the $n-\alpha$ and $p-\alpha$ fish-bone potential
  The fishbone potential of composite particles simulates the Pauli effect by nonlocal terms. We determine the $n-\alpha$ and $p-\alpha$ fish-bone potential by simultaneously fitting to the experimental phase shifts. We found that with a double Gaussian parametrization of the local potential can describe the $n-\alpha$ and $p-\alpha$ phase shifts for all partial waves. 
E. Smith, R. Woodhouse and Z. Papp
nucl-th