Isobaric resonances, beta decay and delayed multineutron emission in very neutron-rich nuclei

The isobaric-analog resonancesfor nuclei around the neutron shell closures at N = 20, 50, 82 are treated in thefullyself-consistentDensityFunctionalplusContinuumQuasiparticleRandomPhaseApproximation (DF+CQRPA).The aim is to check how the self-consistency is preserved in the calculations for long iso...

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Bibliographic Details
Published in:Eurasian journal of physics and functional materials 2021-11, Vol.3 (2), p.116-123
Main Authors: Borzov, I.N., Tolokonnikov, S.V.
Format: Article
Language:English
Subjects:
beta decay
exotic nuclei
isobaric-analog resonances
self-consistent approach
Online Access:Get full text
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Summary:The isobaric-analog resonancesfor nuclei around the neutron shell closures at N = 20, 50, 82 are treated in thefullyself-consistentDensityFunctionalplusContinuumQuasiparticleRandomPhaseApproximation (DF+CQRPA).The aim is to check how the self-consistency is preserved in the calculations for long isotopic chains. The beta-decay half-lives and delayed multi-neutron emission branchingare calculated for the reference Ni isotopic chain. The relative contributions of the GT and first-forbidden transitions are compared with that of the relativistic QRPA and Finite Amplitude Method. The accuracy of the global beta decay calculations performed within FRDM+RPA, DF+CQRPA and RHB+QRPA models are analysed.
ISSN:2522-9869
2616-8537
DOI:10.29317/ejpfm.2019030201