Investigating $\beta$-decay properties of spherical nuclei along the possible r-process path

Abstract

The spherical QRPA method is used for the calculations of the $\beta$-decay properties of the neutron-rich nuclei in the region near the neutron magic numbers N=82 and N=126 which are important for determination of the r-process path. Our calculations differ from previous works by the use of realistic forces for the proton-neutron interaction. Both the allowed and first-forbidden $\beta$-decays are included. Detailed comparisons with the experimental measurements and the previous shell-model calculations are performed. The results for half-lives and beta-delayed neutron emission probabilities will serve as input for the r-process nucleosynthesis simulations.

10 pages, 12 figures

References in corpus (4)

• Covariant theory of particle-vibrational coupling and its effect on the single-particle spectrum
• Beta Decays of Isotones with Neutron Magic Number of N=126 and R-process Nucleosynthesis
• Nucleosynthesis Modes in the High-Entropy-Wind of Type II Supernovae: Comparison of Calculations with Halo-Star Observations
• Shell model half-lives for r-process N=82 nuclei

Cited by in corpus (10)

• The impact of individual nuclear properties on $r$-process nucleosynthesis
• Large scale evaluation of beta-decay rates of r-process nuclei with the inclusion of first-forbidden transitions
• Particle-vibration coupling effect on the $\beta$-decay of magic nuclei
• Benchmarking nuclear models for Gamow-Teller response
• Effect of first forbidden decays on the shape of neutrino spectra
• Impact of the first-forbidden $\beta$ decay on the production of $A\sim 195$ r-process peak
• Gamow-Teller and double-beta decays of heavy nuclei within an effective theory
• Beta Spectrum Generator: High precision allowed $\beta$ spectrum shapes
• Competition between allowed and first-forbidden $\beta$ decay in $r$-process waiting-point nuclei within a relativistic beyond-mean-field approach
• Shell-model study for allowed and forbidden ${\beta }^{-}$ decay properties in the mass region "south" of ${}^{208}$Pb