Elastic and inelastic breakup of theHe3particle

Abstract
Within the framework of the post form distorted-wave Born-approximation theory of breakup reactions, we study the elastic and inelastic breakup of the He3 particle. With the standard set of parameters for the optical model potential we are able to understand coincidence and inclusive data for this process, which were recently measured by Matsuoka et al. at the incident He3 energy of 90.0 MeV. The elastic breakup accounts only for about 20% of the total inclusive (He3, d) yield. With our theory we are able to understand quantitatively the breakup process, a dominant peripheral reaction mechanism.