Beta-decay of nuclei near the neutron shell N = 126 |
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| Authors: | I. N. Borzov |
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| Affiliation: | (1) Nuclear Structure Laboratory, Department of Physics, University of Notre Dame, Notre Dame, IN, 46556, U.S.A.;(2) Nuclear Structure Laboratory, Department of Physics, University of Notre Dame, Notre Dame, IN, 46556, U.S.A. |
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| Abstract: | A self-consistent approach to the weak interaction rates is presented. It is based on the generalized energy-density functional method and continuum QRPA. The study has been made of the β-decay total energy releases, half-lives and β-delayed neutron emission branchings for recently identified near-spherical nuclei with charge numbers Z = 76–79 approaching the closed neutron shell at N = 126. Together with our previous calculations near N = 28, 50, 82 this provides an important update to the standard set of weak rates for the r-process modeling, radioactive beam experiments and advanced reactor applications. Within the fully microscopic framework a significant competition is found of the Gamow-Teller and first-forbidden decay contributions to the total half-lives. |
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