DEUTERON-ALPHA INTERACTION BY INVERSION OF RGM S-MATRIX - DETERMINATION OF SPIN-ORBIT POTENTIAL FOR SPIN-ONE PROJECTILE

The iterative-perturbative (IF) procedure for S-matrix to potential in version is applied to spin-one projectiles for the restricted case of vector spin-orbit interaction only. in order to evaluate this extensio n of IP inversion we have inverted the multi-channel RGM S-lj of Kanad a et al. [Nucl. Phys. A 444 (1985) 209] for deuterons scattering from He-4 with deuteron distortion and then compared the central components with those derived from the resonating group model (RGM) with the spi n set to zero. Attention is given to the question of how well the resu lting potentials are established. Reliable spin-one inversion is demon strated. Results relating to inversion, to deuteron-nucleus interactio ns and to RGM are presented and suggest the range of nuclear interacti on information which the procedure makes possible. Unusual non-localit y and parity dependence effects are found; these are of possible relev ance to generic properties of nuclear potentials. (C) 1997 Elsevier Sc ience B.V.