Microscopic description of 2α-decay in 212Po and 224Ra isotopes

Mercier, F. and Zhao, J. and Ebran, J.-P. and Khan, E. and Nikˇsic, T. and Vretenar, D. (2022) Microscopic description of 2α-decay in 212Po and 224Ra isotopes. Il nuovo cimento C, 45 (3). pp. 1-7. ISSN 1826-9885

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Abstract

Half-lives calculations for α decay of 212Po and 224Ra are performed using microscopic self-consistent framework. Calculations are performed using the covariant energy density functional theory within Hartree-Bogoliubov approximation, where a separable pairing interaction of finite range is used. The potential energy surface is computed as a function of quadrupole, octupole and hexadecupole collective coordinates and the determination of the dynamical least-action path is performed using the cranking adiabatic time-dependent Hartree Bogoliubov approximation. The predicted half-lives for α decay of 212Po and 224Ra are in good agreement with experimental values. In addition, a new decay mode consisting of symmetric, back to back, 2α emission is predicted with half-lives of the order of those observed for cluster emission.

Item Type:	Article
Subjects:	500 Scienze naturali e Matematica > 530 Fisica
Depositing User:	Marina Spanti
Date Deposited:	30 Jun 2022 13:47
Last Modified:	30 Jun 2022 13:47
URI:	http://eprints.bice.rm.cnr.it/id/eprint/21945

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