Comment on the Spins of the States near 5.4 MeV inO19

Abstract

A review of the analysis of the $n+{}_{}{}^{18}{}_{}{}^{}\mathrm{O}$ elastic scattering data advances the argument that two states, with $J^{\pi }={\frac{3}{2}}^{+}$ and ${\frac{5}{2}}^{+}$, are the dominant levels in ${}_{}{}^{19}{}_{}{}^{}\mathrm{O}$ near 5.4 MeV excitation. Both states show significant single-particle strengths. The ${\frac{3}{2}}^{+}$ spin assignment is in agreement with the recent shell-model calculations of Halbert et al. The origin of the ${\frac{5}{2}}^{+}$ state is still open.