We have measured and analyzed angular distributions of (${}_{}{}^6{}_{}{}^{}\mathrm{Li}$, ${}_{}{}^6{}_{}{}^{}\mathrm{He}$) reactions at $E_{\mathrm{lab}}\sim 34$ MeV on targets between $A=6\mathrm{}$ and $A=48\mathrm{}$. The analysis indicates that the (${}_{}{}^6{}_{}{}^{}\mathrm{Li}$, ${}_{}{}^6{}_{}{}^{}\mathrm{He}$) reaction has sizable contributions from multistep processes except possibly for transitions of zero angular momentum transfer ($L=0\mathrm{}$) near closed shells. The $L=0\mathrm{}$ partial cross sections of the (${}_{}{}^6{}_{}{}^{}\mathrm{Li}$, ${}_{}{}^6{}_{}{}^{}\mathrm{He}$) reaction are correlated with the known Gamow-Teller strength obtained from $\beta$-decay measurements, except for a smoothly target-dependent uncorrelated factor which makes the (${}_{}{}^6{}_{}{}^{}\mathrm{Li}$, ${}_{}{}^6{}_{}{}^{}\mathrm{He}$) $L=0\mathrm{}$ cross sections too large in the middle of the $s-d$ shell. The (${}_{}{}^6{}_{}{}^{}\mathrm{Li}$, ${}_{}{}^6{}_{}{}^{}\mathrm{He}$) reactions should be useful in studying the distribution of Gamow-Teller strength in nuclei.

NUCLEAR REACTIONS ${}_{}{}^{18}{}_{}{}^{}\mathrm{O}$(${}_{}{}^6{}_{}{}^{}\mathrm{Li}$, ${}_{}{}^6{}_{}{}^{}\mathrm{He}$), ${}_{}{}^{30}{}_{}{}^{}\mathrm{Si}$(${}_{}{}^6{}_{}{}^{}\mathrm{Li}$, ${}_{}{}^6{}_{}{}^{}\mathrm{He}$), ${}_{}{}^{34}{}_{}{}^{}\mathrm{S}$(${}_{}{}^6{}_{}{}^{}\mathrm{Li}$, ${}_{}{}^6{}_{}{}^{}\mathrm{He}$), $E=32\mathrm{}$ MeV; ${}_{}{}^{42,44,48}{}_{}{}^{}\mathrm{Ca}$(${}_{}{}^6{}_{}{}^{}\mathrm{Li}$, ${}_{}{}^6{}_{}{}^{}\mathrm{He}$), $E=34\mathrm{}$ MeV; measured $\sigma (E_{\mathrm{He}}, \theta )$, systematic DWBA analysis includes ${}_{}{}^6{}_{}{}^{}\mathrm{Li}$(${}_{}{}^6{}_{}{}^{}\mathrm{Li}$, ${}_{}{}^6{}_{}{}^{}\mathrm{He}$) and ${}_{}{}^{26}{}_{}{}^{}\mathrm{Mg}$(${}_{}{}^6{}_{}{}^{}\mathrm{Li}$, ${}_{}{}^6{}_{}{}^{}\mathrm{He}$).

• Received 3 February 1975

DOI:https://doi.org/10.1103/PhysRevC.11.1963