Endothermic Deuteron Stripping Reactions. III. TheC14(d, pγ)C15andLi7(d, pγ)Li8Reactions

The cross section of the ${\mathrm{C}}^{14}(d, p){\mathrm{C}}^{15*}$ reaction ($Q=-1.76\mathrm{}$ MeV) to the first excited state of ${\mathrm{C}}^{15}$ at 0.75 MeV was measured for deuteron energies between 2.7 and 3.4 MeV. The cross section was obtained from the yield of the $\gamma$ ray to the ${\mathrm{C}}^{15}$ ground state. The energy of this $\gamma$ ray was measured to be 0.750±0.007 MeV. The $\gamma$-ray angular distribution relative to the deuteron beam was measured at five deuteron energies between 2.9 and 3.4 MeV. The presence of a $P_4\left(cos\theta \right)$ term in the distributions together with previous work establishes the ${\mathrm{C}}^{15}$ 0.75-MeV level as $\frac{5}{2^{+}}$. The measured angular distributions were found to be in agreement with predictions based on stripping theory. The cross section for the ${\mathrm{Li}}^7(d, p){\mathrm{Li}}^{8*}$ reaction ($Q=-1.17\mathrm{}$ MeV) to the first excited state of ${\mathrm{Li}}^8$ at 0.98 MeV was measured for deuteron energies between 1.9 and 3.3 MeV. The cross section was obtained from the yield of the $\gamma$ ray to the ${\mathrm{Li}}^8$ ground state. The $\gamma$-ray energy was measured to be 0.980±0.010 MeV. The anisotropy of this $\gamma$ ray was measured at 23 deuteron energies between 1.9 and 3.3 MeV. These results were also consistent with the predictions of stripping theory if assignments of $1^{+}$ for the ${\mathrm{Li}}^8$ 0.98-MeV level and $M1\mathrm{}$ for the 0.98-MeV $\gamma$ ray are assumed.