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

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.

Recommended Citation

Borzov, I. N. and Tolokonnikov, S. V. (2019) "Isobaric resonances, beta decay and delayed multineutron emission in very neutron-rich nuclei," Eurasian Journal of Physics and Functional Materials: Vol. 3: No. 2, Article 1.
DOI: https://doi.org/10.29317/ejpfm.2019030201