Abstract
Proton inelastic scattering on the neutron-rich nucleus has been studied at 46.5 MeV/nucleon in inverse kinematics. Populated states were identified by measuring de-excitation rays, in which five new states were found by coincidence analyses. By analyzing the angular differential cross sections via coupled-channel calculations, their spins and parities were constrained and the amplitudes for each transition were extracted. The spin and parity of the 2321-keV state was assigned as . The ratio between the energies of the and states indicates that is a transitional nucleus rather than an axially deformed rigid rotor. The collectivities in the nucleus with are discussed based on the results obtained in the present experiment.
4 More- Received 15 April 2009
DOI:https://doi.org/10.1103/PhysRevC.79.054319
©2009 American Physical Society