SCATTERING OF DEUTERONS BY NUCLEI WITH BREAKUP EFFECTS

The deuteron direct-breakup reaction is explicitly incorporated into t he d + nucleus formulation of model K which is a simplified version of the microscopic resonating-group method. By employing the same nucleo n-nucleon potential as that used in the corresponding nucleon + nucleu s system and by adopting an imaginary potential with a single adjustab le parameter to crudely represent other reactions not explicitly inclu ded in the formulation, it is shown that a good agreement between calc ulated and experimental differential cross sections can be obtained fo r deuteron scattering by a wide variety of target nuclei, ranging from Si-28 to Pb-208. In addition, the results also indicate that the deut eron breakup reaction is a significant, but not dominant, reaction in the d + nucleus system. To make model K into a truly microscopic model without any phenomenological imaginary potential, one must further ex plicitly include the (d, p) and (d, n) one-nucleon-transfer or strippi ng reactions into the model-K formulation.