Angular correlation and lifetime measurements inNe22

Particle-$\gamma$ angular correlations have been measured for a number of states above 7.3 MeV in ${}_{}{}^{22}{}_{}{}^{}\mathrm{Ne}$ using the ${}_{}{}^{18}{}_{}{}^{}\mathrm{O}({}_{}{}^7{}_{}{}^{}\mathrm{Li},t\gamma ){}_{}{}^{22}{}_{}{}^{}\mathrm{Ne}$ reaction with the tritons observed at 0°. New information on the spins and parities of several states in ${}_{}{}^{22}{}_{}{}^{}\mathrm{Ne}$ was obtained. In addition, by demonstrating that the ${}_{}{}^{22}{}_{}{}^{}\mathrm{Ne}$ nuclei were strongly aligned, these measurements provide support for a direct $\alpha$-particle transfer mechanism for the ${}_{}{}^{18}{}_{}{}^{}\mathrm{O}({}_{}{}^7{}_{}{}^{}\mathrm{Li},t){}_{}{}^{22}{}_{}{}^{}\mathrm{Ne}$ reaction. Angular correlation and lifetime measurements employing the ${}_{}{}^{19}{}_{}{}^{}\mathrm{F}(\alpha ,p\gamma ){}_{}{}^{22}{}_{}{}^{}\mathrm{Ne}$ reaction have also been performed for a number of states in ${}_{}{}^{22}{}_{}{}^{}\mathrm{Ne}$, including several closely spaced doublets on which previous information is incomplete or inconsistent. Lifetimes were measured by the Doppler-shift attenuation method. The results are compared with recent large basis shell model calculations.