Abstract
The quasiparticle-phonon nuclear model equations are derived for describing theKπ=O+ states in doubly even deformed nuclei taking account of particle-hole and particle-particle interactions between quasiparticles. Inclusion of particle-particle interactions complicates the RPA equations. Equations for the functions of monopole and quadrupole pairing are derived from the condition of eliminating spurious RPA solutions. In the QPNM, inclusion of a particle-particle interaction does not lead to very complicated calculations. The obtained equations can serve as a basis for calculating characteristics of the O+ excited states of doubly even deformed nuclei.
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The author is grateful to V.M. Mikhailov, R.G. Nazmitdinov, V.O. Nesterenko and N.Yu. Shirikova for fruitful discussions.