Gamow-Teller response in deformed even and odd neutron-rich Zr and Mo isotopes

Abstract

Beta-decay properties of neutron-rich Zr and Mo isotopes are investigated within a microscopic theoretical approach based on the proton-neutron quasiparticle random-phase approximation. The underlying mean field is described self-consistently from deformed Skyrme Hartree-Fock calculations with pairing correlations. Residual separable particle-hole and particle-particle forces are also included in the formalism. The structural evolution in these isotopic chains including both even and odd isotopes is analyzed in terms of the equilibrium deformed shapes. Gamow-Teller strength distributions, beta-decay half-lives, and beta-delayed neutron-emission probabilities are studied, stressing their relevance to describe the path of the nucleosynthesis rapid neutron capture process.

14 pages, 17 figures. To be published in Physical Review C. arXiv admin note: substantial text overlap with arXiv:1006.1478

References in corpus (4)

• Beta-decay half-lives and beta-delayed neutron emission probabilities of nuclei in the region below A=110, relevant for the r-process
• Collectivity-induced quenching of signatures for shell closures
• Systematics of one-quasiparticle configurations in neutron-rich Sr, Zr, and Mo odd isotopes with the Gogny energy density functional
• Shape evolution in Yttrium and Niobium neutron-rich isotopes

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• Competition between weak and alpha-decay modes in superheavy nuclei
• $\beta$-decay half-lives as an indicator of shape-phase transition in neutron-rich Zr isotopes with particle-vibration coupling effect
• Deformation dependence of 2p-radioactivity half-lives: Probe with a new formula across the mass region with Z<82
• Impact of Nuclear Deformation of Parent and Daughter Nuclei on One Proton Radioactivity Lifetimes
• $\beta$-Decay Properties of Neutron-rich Yttrium Isotopes
• Impact of microscopic structural transitions on particle stability and lifetimes of hot nuclei