Abstract
A microscopic calculation of half-lives for the recently observed -decay chain is performed by using a self-consistent framework based on energy density functionals. The relativistic density functional DD-PC1 and a separable pairing interaction of finite range are used to compute axially symmetric deformation-energy surfaces of and as functions of quadrupole, octupole, and hexadecupole collective coordinates. Dynamic least-action paths are determined that trace the -particle emission from the equilibrium deformation to the point of scission. The calculated half-lives, 197 ns for and for , are compared with recent experimental values of the half-lives of superallowed decay of : ns, and : .
- Received 26 February 2020
- Accepted 12 June 2020
DOI:https://doi.org/10.1103/PhysRevC.102.011301
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