Theory of the O^{+} States of O^{16}
Abstract
The usual shellmodel interpretation of the 6.06Mev 0^{+} level of O^{16} as twonucleon excitation is replaced by onenucleon excitation. The large excitation energy for an individual nucleon is greatly reduced for special linear combinations of the excited shellmodel configurations, because of a resonance effect arising from the degeneracy and from the large offdiagonal matrix elements. The state of collective compressionaldilational oscillation of the nucleus is shown to be a particularly favorable such linear combination, and the results of an explicit calculation indicate that the resonance effect is strong enough to account for the 6.06Mev level. It is also proposed to interpret the 6.91Mev 2^{+} level as a superposition of onenucleon excited configurations corresponding to spheroidal deformation.
 Publication:

Physical Review
 Pub Date:
 April 1956
 DOI:
 10.1103/PhysRev.102.450
 Bibcode:
 1956PhRv..102..450F