Quantum Monte Carlo calculations of neutron-alpha scattering
  We describe a new method to treat low-energy scattering problems in few-nucleon systems, and we apply it to the five-body case of neutron-alpha scattering. The method allows precise calculations of low-lying resonances and their widths. We find that a good three-nucleon interaction is crucial to obtain an accurate description of neutron-alpha scattering. 
Kenneth M. Nollett, Steven C. Pieper, R. B. Wiringa, J. Carlson, G. M.   Hale