Beta-decay properties of Zr and Mo neutron-rich isotopes

TL;DR

This paper investigates beta-decay properties of neutron-rich Zr and Mo isotopes using a deformed quasiparticle random-phase approximation, highlighting the significance of nuclear deformation in accurately describing their decay characteristics.

Contribution

It introduces a self-consistent Skyrme Hartree-Fock based approach incorporating deformation effects to study beta-decay in Zr and Mo isotopes, improving understanding of their decay properties.

Findings

Nuclear deformation significantly influences beta-decay half-lives.

The model reproduces recent experimental half-life measurements.

Deformation effects are crucial for accurate beta-decay predictions in this mass region.

Abstract

Gamow-Teller strength distributions, beta-decay half-lives, and beta-delayed neutron emission are investigated in neutron-rich Zr and Mo isotopes within a deformed quasiparticle random-phase approximation. The approach is based on a self-consistent Skyrme Hartree-Fock mean field with pairing correlations and residual separable particle-hole and particle-particle forces. Comparison with recent measurements of half-lives stresses the important role that nuclear deformation plays in the description of beta-decay properties in this mass region.