Abstract
The expansion coefficients of a fourth-order collective Hamiltonian for the low-lying quadrupole vibrations are derived from the microscopic fermion Hamilton operator by a modified Marumori boson-expansion method. Their dependence on the phonon structure, on the parameters of the two-body (surface ) interaction, and on the single-particle energies is numerically investigated. For the isotopes and , the results are compared with coefficients that are obtained from phenomenological fits to low-lying levels. Quadrupole moments and values are calculated in lowest order.
NUCLEAR STRUCTURE , collective states microscopically by boson expansion.
- Received 21 April 1975
DOI:https://doi.org/10.1103/PhysRevC.12.1035
©1975 American Physical Society