Determination of the tritonD-state parameterD2from sub-Coulomb (d→, t) measurements

Measurements of the tensor analyzing powers for sub-Coulomb ($\overrightarrow{d}, t$) reactions on ${}_{}{}^{91}{}_{}{}^{}\mathrm{Zr}$ at $E_d=5\mathrm{}$ MeV and ${}_{}{}^{147}{}_{}{}^{}\mathrm{Sm}$ at $E_d=6.5\mathrm{}$ MeV are presented. The measurements are analyzed to obtain values of the triton $D$-state parameter $D_2$. The results are found to be in good agreement with the $D_2$ values derived from previous sub-Coulomb measurements, and lend support to the contention that analyzing power measurements for sub-Coulomb ($\overrightarrow{d}, t$) reactions provide reliable information about the $D$-state components.