Heavy Ion Orbiting and Regge Poles (III)

We discuss two reactions initiated by the loosely bounded 6Li in an energy window where the interaction with light targets is strongly refractive and moderately absorbing. The surface transparency of the optical potential allows a considerable internal barrier component of the scattering amplitude which leads to significant refractive effects and diffractive scattering at large angles due to Regge poles located near the real axis, close to the orbiting momentum. The folding potentials based on realistic effective NN interactions revealed a number of phase equivalent discrete solutions with real volume integrals close to the bare potential values (Nv ≈ 1). This suggests that the real part of the dynamic polarization potential arising from the coupling to the breakup channel is small.