The effects of finite range and channel coupling in the 32S(3He vector,4He)31S reaction

Comparisons of exact finite-range (EFR)DWBA calculations and zero-range (ZR) calculations are presented for the cross sections and analysing powers of the 32S(3He vector,4He)31S reaction to the ground state (1/2+), 1.25 MeV (3/2+)and 2.23 MeV (5/2+) states. The data for the 3/2+ and 5/2+ states are quite well fitted and show the characteristic j-dependence of the analysing powers. Only small differences between the EFR and ZR calculations are seen. The analysing power data for the 1/2+ state are poorly fitted by the EFR or ZR calculations but better agreement is obtained when the coupling to other levels is included in a coupled channel Born approximation (CCBA) calculation. (orig.)