MICROSCOPIC CALCULATIONS OF LOW-ENERGY REACTION CROSS-SECTIONS

Microscopic calculations of nuclear reaction cross sections and total reaction probabilities are compared with measurements for the d+Si, He3,4+Si, and d+Ge systems at energies ranging from 2 to 53 MeV/nucleon. Good agreement is obtained, except for He3+Si at the very lowest energies, when zero-range nucleon-nucleon forces are assumed and realistic nuclear density distributions are used in the tail regions, where the models are most sensitive. The agreement is less good for finite-range forces. A strong absorption model gives much poorer agreement with the recent He4+Si measurements than do the microscopic models. © 1990 The American Physical Society.