Spin, Parity, andj−jExpansion Coefficients for States of Low Excitation inO18

A study of the angular distributions and of relative intensities of proton groups from the reaction ${\mathrm{O}}^{17}(d, p){\mathrm{O}}^{18}$ has established even parity and total angular momenta of 0, 2, and 4 for the lowest three known states in ${\mathrm{O}}^{18}$. These results, as well as the $d$-wave stripping intensities, are in remarkable agreement with theoretical predictions of Redlich and of Elliott and Flowers. A mixed $s-d$ angular distribution for the first excited state is shown to determine sensitively the coefficients of the $d_{\frac{5}{2}}{s}_{\frac{1}{2}}$ and ${\left(d_{\frac{5}{2}}\right)}^2$ terms in a $j-j$ expansion of the wave function for this state.