Energy level schemes of 23 Na, 27 Al, 31 P on the unified model

Abstract
It is remarked that low-lying intrinsic states in distorted (4n–1)-nuclei can be formed by a single hole on otherwise filled Nilsson single-particle energy levels. Such intrinsic states should be produced strongly in medium energy (p, 2p) and (p, pn) reactions on 4n-nuclei. In this way such intrinsic states are identified in 23Na, 27Al, 31P. Using this information an analysis is made of the low states of 23Na in terms of rotational bands which differs from a previous analysis.