Phys. Rev. C 55, 2340–2344 (1997)Restoration of the Ikeda sum rule in self-consistent quasiparticle random-phase approximationReceived 8 July 1996; published in the issue dated May 1997 The so-called self-consistent quasiparticle random phase approximation, accounting for a better treatment of ground-state correlations, is applied to a schematic Hamiltonian, describing the Fermi beta decay process. The self-consistent procedure coupling the BCS minimum with the quantum fluctuations yields an exact fulfillment of the Ikeda sum rule. The role of the ground-state correlations is analyzed in the case of the double beta decay process. © 1997 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.55.2340
DOI:
10.1103/PhysRevC.55.2340
PACS:
21.60.Jz, 23.40.Hc
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