Shell-model study of β+/EC-decay half-lives for Z=21–30 nuclei

Shell-model study of β+/EC-decay half-lives for Z=21–30 nuclei

In the present work, we have reported β + /EC-decay half-lives for Z = 21 –30 nuclei using large-scale shell-model. A recent study shows that some proton-rich nuclei in this region belong to the island of inversion. We have performed calculations for these nuclei using KB3G effective interaction, wh...

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Bibliographic Details
Published in:The European physical journal. A, Hadrons and nuclei Hadrons and nuclei, 2023-10, Vol.59 (10), Article 237
Main Authors: Kumar, Vikas, Srivastava, Praveen C.
Format: Article
Language:eng
Subjects:
Hadrons
Heavy Ions
Nuclear Fusion
Nuclear Physics
Particle and Nuclear Physics
Physics
Physics and Astronomy
Regular Article - Theoretical Physics
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Summary:In the present work, we have reported β + /EC-decay half-lives for Z = 21 –30 nuclei using large-scale shell-model. A recent study shows that some proton-rich nuclei in this region belong to the island of inversion. We have performed calculations for these nuclei using KB3G effective interaction, while for Ni, Cu, and Zn nuclei we have used JUN45 effective interaction in the f 5 / 2 p g 9 / 2 model space. The calculated quenching factors for fp and f 5 / 2 p g 9 / 2 space using KB3G and JUN45 effective interactions are also reported. Shell-model results of β -decay half-lives, excitation energies, log ft values, and branching fractions are discussed and compared with the available experimental data. We have obtained a reasonable agreement with the available data.
ISSN:1434-601X
1434-601X