Abstract
We present a new method by which wave functions with simple structure are renormalized so as to contain more complicated structure. This method, called -cooling method, is applied to the study of the quadrupole collective motion of Fe, Cr, Fe, and Cr. The shell-model wave functions of lowest-lying states of these nuclei are well treated by this method. By using the wave functions obtained via the -cooling method, interacting boson model-2 parameters are derived from a realistic shell-model Hamiltonian and transition operators. The Majorana interaction becomes sizably repulsive, primarily as an effect of the renormalization. The bosonic effective charges are enhanced due to the renormalization, while a quenching occurs in the and parameters for proton bosons. It is shown that the parameters take similar values in the Hamiltonian and in the operator.
- Received 30 September 1996
DOI:https://doi.org/10.1103/PhysRevC.55.748
©1997 American Physical Society