We have measured cross sections for (d${,}^2$He) induced reactions on the p-shell nuclei ${}_{}{}^6{}_{}{}^{}\mathrm{Li}$, ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$, and ${}_{}{}^{13}{}_{}{}^{}\mathrm{C}$ and the sd-shell nucleus ${}_{}{}^{24}{}_{}{}^{}\mathrm{Mg}$ at an energy of ${\mathit{E}}_{\mathit{d}}$=125.2 MeV. The measured excitation energy spectra are very similar to those from (p,n), (n,p), and (d${,}^2$He) reactions at higher energies. The measured 0° (d${,}^2$He) cross sections show a remarkably well-defined linear relation with the Gamow-Teller strengths deduced either from β decay or from (p,n) reactions. Our results demonstrate that the (d${,}^2$He) reaction can be used as a powerful tool to study Gamow-Teller strengths in the ${\mathrm{\beta }}^{+}$ direction at energies as low as ${\mathit{E}}_{\mathit{d}}$=125.2 MeV.

• Received 5 May 1995

DOI:https://doi.org/10.1103/PhysRevC.52.R1161