NondirectMg26(He4,He6)Mg24Reaction at 35 MeV

Abstract

The differential cross sections for the two-neutron pickup reaction ${}_{}{}^{26}{}_{}{}^{}\mathrm{Mg}$(${}_{}{}^4{}_{}{}^{}\mathrm{He}$, ${}_{}{}^6{}_{}{}^{}\mathrm{He}$)${}_{}{}^{24}{}_{}{}^{}\mathrm{Mg}$ have been found to exhibit a strong dependence on bombarding energy, evidence of some process other than a direct reaction. Angular distributions at a fixed energy for several low-lying states of ${}_{}{}^{24}{}_{}{}^{}\mathrm{Mg}$ are found to exhibit structure reminiscent of known direct reactions, and we conclude that this signature cannot be considered proof of a direct reaction.