Proton Angular Distributions from Deuteron Bombardment of ${\mathrm{Bi}}^{209}$, ${\mathrm{Pb}}^{207}$, and ${\mathrm{Y}}^{89}$

The proton angular distributions in the ($d, p$) reactions on ${\mathrm{Bi}}^{209}$, ${\mathrm{Pb}}^{207}$, and ${\mathrm{Y}}^{89}$ have been measured and an attempt made to interpret the results on the basis of the Butler stripping theory. The neutron added to ${\mathrm{Y}}^{89}$ is consistent with an $l_n=2\mathrm{}$ prediction. The last neutron in ${\mathrm{Pb}}^{208}$ shows a similarity to an $l_n=1\mathrm{}$, non-Coulomb theory angular distribution, but the ${\mathrm{Bi}}^{210}$ case is not readily capable of being interpreted with this theory. The results of these experiments are analyzed on the basis of the shell model and the systematics of the binding energy of the last neutron.