Contribution of proton exchange to the elastic scattering cross section of 11 B on 12 C

Abstract

Despite the fact that the optical model (OM) well explain the experimental data of the angular distributions of
the front angles, in many cases it cannot explain the inverse maximum values observed at angles (<90 ◦ ). In many ways, the inclusion of exchange mechanisms in the calculations allows us to describe experimental data in the full angular range. This paper presents theoretical analyses of experimental cross sections ¹¹B on ¹²C at E_cm =14.6 MeV in the framework of the optical model (OM), the double folding method (DF) and the method of distorted waves with a finite interaction radius (EFR DWBA) using the codes FRESCO and DFPOT. As a result, optimal potential parameters were obtained and the spectroscopic amplitude (SA) for the state ¹² C - ¹¹ B+p was extracted .