Spectroscopic utility of the two-proton pickup (Li6,B8) reaction

Data for the (${}_{}{}^6{}_{}{}^{}\mathrm{Li}$, ${}_{}{}^8{}_{}{}^{}\mathrm{B}$) reaction on targets of ${}_{}{}^{10}{}_{}{}^{}\mathrm{B}$, ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$, ${}_{}{}^{13}{}_{}{}^{}\mathrm{C}$, and ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ at 80 and 93 MeV are presented. Spectroscopic selectivity is observed and evidence for the dominance of spatially symmetric transfer of the two protons is shown. On the $T_z=0\mathrm{}$ targets a close similarity is found to the analogous ($p,t$) reaction, and the ${}_{}{}^{13}{}_{}{}^{}\mathrm{C}$ results indicate the location of low-lying $1p$-shell states in ${}_{}{}^{11}{}_{}{}^{}\mathrm{Be}$.