Level Structure ofNe22by theNe21(d,p)Ne22Reaction

The ${}_{}{}^{21}{}_{}{}^{}\mathrm{Ne}\mathrm{}(d,p)\mathrm{}{}_{}{}^{22}{}_{}{}^{}\mathrm{Ne}$ reaction has been studied at 12-MeV incident energy. Angular distributions of protons have been extracted for 31 transitions leading to levels in ${}_{}{}^{22}{}_{}{}^{}\mathrm{Ne}$ up to 9.10-MeV excitation energy. Angular momentum transfers have been identified and spectroscopic factors extracted for 27 levels by comparison with distorted-wave Born-approximation predictions. Experimental spectroscopic factors for the low-lying states have been compared with the predictions of the unified rotational model. The results of the present study indicate that the ground-state rotational band of ${}_{}{}^{22}{}_{}{}^{}\mathrm{Ne}$ is formed by placing an additional neutron in Nilsson orbit No. 7 (${\frac{3}{2}}^{+}\mathrm{}\left[211\right]\mathrm{}$). Several states have been identified which belong to $K^{\pi }=1^{+} \mathrm{and} 4^{+}$ bands formed by stripping a neutron to Nilsson orbit No. 5 (${\frac{5}{2}}^{+}\mathrm{}\left[202\right]\mathrm{}$) and to $K^{\pi }=1^{+} \mathrm{and} 2^{+}$ bands formed by stripping to orbit No. 9 (${\frac{1}{2}}^{+}\mathrm{}\left[211\right]\mathrm{}$).