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Eurasian Journal of Physics and Functional Materials

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

https://doi.org/10.29317/ejpfm.2019030201

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Abstract

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.

About the Authors

I. N. Borzov
National Research Centre Kurchatov Institute
Russian Federation


S. V. Tolokonnikov
National Research Centre Kurchatov Institute
Russian Federation


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For citation:


Borzov I.N., Tolokonnikov S.V. Isobaric resonances, beta decay and delayed multineutron emission in very neutron-rich nuclei. Eurasian Journal of Physics and Functional Materials. 2019;3(2):116-123. https://doi.org/10.29317/ejpfm.2019030201

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ISSN 2522-9869 (Print)
ISSN 2616-8537 (Online)