Abstract
The coupling of single-particle motion and of vibrations in produces dressed neutrons which spend only a fraction of the time in pure single-particle states, and which weighing differently from the bare neutrons lead to parity inversion. The interaction of the two least bound neutrons in the ground state of mediated by the Argonne nucleon-nucleon potential and by the exchange of surface vibrations of the core gives rise to a strongly correlated state, where the two valence neutrons are distributed over , and configurations, resulting in the breaking of the shell closure.
- Received 18 April 2003
DOI:https://doi.org/10.1103/PhysRevC.69.041302
©2004 American Physical Society