Generalized optical potential for weakly bound nuclei. I. Two-cluster   projectiles
  A generalized optical potential for elastic scattering induced by light nuclei is calculated within the Feshbach projection operator method. The model explicitly takes into account the contribution of the projectile break-up continuum treated within a microscopic few-cluster model. In this work we formulate the model, deriving an explicit expression for the optical potential, and show ability of the model applying it to deuteron elastic scattering. 
A.S. Denikin, V.I. Zagrebaev, P. Descouvemont