Restoration of the Ikeda sum rule in self-consistent quasiparticle random-phase approximation

Journal Article · Thu May 01 04:00:00 EDT 1997 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.55.2340· OSTI ID:496854

Delion, D S ^[1]; Dukelsky, J ^[2]; Schuck, P ^[3]

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1. Institute of Atomic Physics, Bucharest Magurele, P.O. Box MG-6 (Romania)
2. Instituto de Estructura de la Materia, Serrano 123, 28006 Madrid (Spain)
3. CNRS-IN2P3 Universite Joseph Fourier, Institut des Sciences Nucleaires, 53 Avenue des Martyrs, F-38026 Grenoble Cedex (France)

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. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 496854
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 5 Vol. 55; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BETA DECAY
CORRELATIONS
COUPLING
DOUBLE BETA DECAY
FLUCTUATIONS
GROUND STATES
HAMILTONIANS
QUASI PARTICLES
RANDOM PHASE APPROXIMATION
SELF-CONSISTENT FIELD
SUM RULES