A Common Optical Potential for 4He+12C at Intermediate Energies**Supported by the National Natural Science Foundation of China under Grant No 11205036, and the Fundamental Research Funds for the Central Universities of China under Grant No HEUCF101501.

Abstract

A common optical potential for 4He+12C at intermediate bombarding energies, which is essential in analyzing exotic nuclei with 4He clusters, is obtained based on the São Paulo potential. Among systematic optical potentials for 4He+12C, this potential has the merit of using a fixed imaginary part of the Woods-Saxon form. By optical-model calculations, this potential reproduces the experimental elastic scattering angular distributions of 4He+12C well within the energy range of 26A–60A MeV. It is also applied successfully in calculations of the breakup reactions of 6Li+12C and 6He+12C with a three-body continuum discretized coupled-channel method.