An investigation of the influence of the pairing correlations on the properties of the isobar analog resonances in A = 208 nuclei

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dc.contributor.authorKücükbursa A.
dc.contributor.authorSalamov D.I.
dc.contributor.authorBabacan T.
dc.contributor.authorAygör H.A.
dc.date.accessioned2024-07-22T08:24:31Z
dc.date.available2024-07-22T08:24:31Z
dc.date.issued2004
dc.description.abstractWithin the quasi-particle random phase approximation (QRPA), the method of the self-consistent determination of the isovector effective interaction which restores a broken isotopic symmetry for the nuclear part of the Hamiltonian is given. The effect of the pairing correlations between nucleons on the following quantities were investigated for the A = 208 nuclei: energies of the isobar analog 0 + states, the isospin admixtures in the ground state of the even-even nuclei, and the differential cross-section for the 208 Pb( 3 He,t) 208 Bi reaction at E( 3 He) = 450 MeV. Both couplings of the excitation branches with T z = To ± 1, and the analog state with isovector monopole resonance (IVMR) in the quasi-particle representation were taken into account in our calculations. As a result of these calculations, it was seen that the pairing correlations between nucleons have no considerable effect on the T = 23 isospin admixture in the ground state of the 208 Pb nucleus, and they cause partially an increase in the isospin impurity of the isobar analog resonance (IAR). It was also established that these correlations have changed the isospin structure of the IAR states, and shifted the energies of the IVMR states to the higher values.
dc.identifier.DOI-ID10.1007/BF02704333
dc.identifier.issn03044289
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/20001
dc.language.isoEnglish
dc.publisherIndian Academy of Sciences
dc.subjectApproximation theory
dc.subjectCorrelation methods
dc.subjectHamiltonians
dc.subjectHydrodynamics
dc.subjectImpurities
dc.subjectMathematical models
dc.subjectProblem solving
dc.subjectResonance
dc.subjectBeta decay
dc.subjectHartee-Fock and random-phase approximations
dc.subjectIsobars
dc.subjectShell model
dc.subjectNuclear physics
dc.titleAn investigation of the influence of the pairing correlations on the properties of the isobar analog resonances in A = 208 nuclei
dc.typeArticle

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