Abstract
The neutron-rich nuclei were populated in binary grazing reactions initiated by a beam of ions at 215 MeV incident on a thin target. The combination of the PRISMA magnetic spectrometer and the CLARA array of escape-suppressed Ge detectors was used to detect rays in coincidence with projectile-like nuclear species. Further evidence to support the observed decay of excited states of the populated phosphorus isotopes is provided by coincidence measurements based on the results of an earlier thick-target deep-inelastic experiment. Level schemes for are presented and discussed within the context of state-of-the-art shell-model calculations. In particular, new spin and parity assignments are proposed for a number of excited states of . The evolution with neutron number of the energy difference of the low-lying and states in the odd- isotopes of phosphorus, as well as the relationship to nuclear collectivity, is discussed. The evolution with neutron number of the shell-model wave functions of the first , and states of the odd- phosphorus isotopes and of the first , and states of the even- isotopes is also explored.
11 More- Received 9 April 2015
DOI:https://doi.org/10.1103/PhysRevC.92.044308
©2015 American Physical Society