The differential cross sections for the reactions ${\mathrm{F}}^{19}(n, d){\mathrm{O}}^{18}$ leading to the ground- and first-excited states of ${\mathrm{O}}^{18}$ have been measured. Higher excited states were also observed but with insufficient accuracy for measurement of the corresponding cross sections. Comparison with results of pickup theory indicates a proton $s$-wave transition to the ground state of ${\mathrm{O}}^{18}$ and a probable $d$-wave transition of approximately equal reduced width to the first excited state. The estimated ratio of the two reduced widths is in agreement with recent theoretical results.

• Received 16 January 1957

DOI:https://doi.org/10.1103/PhysRev.106.767