The method of correlated quasiparticles is extended to treat the problem of attractive particle-particle matrix elements in the generalized $0^{+}$ mode. A computationally convenient approach to the problem is presented. Sample calculations are performed and compared with the results of pairing model calculations. It is concluded that the nonpairing $0^{+}$ matrix elements play an important role in determining the ground-state properties of deformed nuclei.

• Received 25 September 1972

DOI:https://doi.org/10.1103/PhysRevC.7.553