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Title

Proton-neutron self-consistent quasiparticle random phase approximation within the o(5) model

AuthorsDelion, D. S.; Dukelsky, Jorge ; Schuck, P.; Passos, E. J. V. de; Krmpotic, F.
Issue Date11-Sep-2000
PublisherAmerican Physical Society
CitationPhysical Review C - Nuclear Physics 62: 443111-4431115 (2000)
AbstractThe self-consistent quasiparticle random phase approximation (SCQRPA) within the O(5) model in the coupled proton-neutron representation is analyzed. The exact vacuum wave function is used to compute all involved matrix elements. A stability analysis of the stationary points is performed. A phase transition from the uncoupled to the coupled stable proton-neutron regime beyond the QRPA breakdown value of the particle-particle strength is evidenced. The excitation energies are close to the lowest stable exact eigenvalues given by the diagonalization procedure for all cases. The conditions for which the Ikeda sum rule is fulfilled for all values of the particle-particle strength are pointed out. ©2000 American Physical Society
Description15 págs.; 7 figs.; 1 tab.; 1 app. ; PACS number(s): 21.60.Jz, 23.40.Hc, 23.90.1w
Publisher version (URL)https://doi.org/10.1103/PhysRevC.62.044311
URIhttp://hdl.handle.net/10261/142780
DOI10.1103/PhysRevC.62.044311
Identifiersdoi: 10.1103/PhysRevC.62.044311
issn: 0556-2813
Appears in Collections:(CFMAC-IEM) Artículos
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