Direct and sequential contributions to the 26Mg(6Li

Abstract

Angular distributions of differential cross-section and vector analyzing power have been measured for the $^{26}\mathrm{Mg}$${(}^{6}$Li\ensuremath{\rightarrow}${,}^{6}$He${)}^{26}$Al reaction, populating four states in $^{26}\mathrm{Al}$, at an incident energy of 60 MeV. Distorted-wave Born approximation (DWBA) calculations were performed for the ${(}^{6}$Li\ensuremath{\rightarrow}${,}^{6}$He) process using shell-model spectroscopic amplitudes and microscopic form factors derived from the M3Y interaction. Sequential contributions to the charge-exchange reaction mechanism via the ${(}^{6}$Li\ensuremath{\rightarrow}${,}^{7}$Li)${(}^{7}$Li${,}^{6}$He) and ${(}^{6}$Li\ensuremath{\rightarrow}${,}^{7}$${\mathrm{Li}}^{\mathrm{*}}$)${(}^{7}$${\mathrm{Li}}^{\mathrm{*}}$${,}^{6}$He) processes were calculated using the coupled-channels Born approximation (CCBA). The effects of inelastic couplings in $^{6}\mathrm{Li}$ were also examined.