TRANSFER-REACTIONS IN S-32-92,MO-98,MO-100 AND NB-93 AT NEAR-BARRIER ENERGIES(MO)

Differential cross sections for quasielastic transfer were measured fo r S-32 beams bombarding (92),(98),Mo-100 and Nb-93 targets at laborato ry energies of 109, 116, and 125 MeV. Distorted-wave Born approximatio n calculations are in good agreement with the one-nucleon transfer dat a at all energies. Large transfer cross sections were observed for (98 ),Mo-100 and Nb-93 targets which is consistent with the large sub-barr ier fusion enhancement observed in the same systems. The transfer prob ability for one-nucleon transfer at large reaction distances is well d escribed by the semiclassical model. There is a slope anomaly for two- proton stripping at energies just above the barrier but no anomaly for two-neutron pickup.