Abstract
The negative parity state of are studied in the framework of the interacting boson approximation model. The negative parity states are formed by including one f boson or allowing one boson to break into two fermions which are placed in orbits with opposite parity. The calculated level energies and B(E2)’s are in reasonable agreements with experiments. From the comparison of intrinsic structure it suggests that the relative energy of the quasiparticles may be the most important factor in the calculations.
- Received 21 January 1994
DOI:https://doi.org/10.1103/PhysRevC.51.136
©1995 American Physical Society