Beta-decay of nuclei near the neutron shell N = 126

Journal Article · Sat Oct 15 00:00:00 EDT 2011 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S1063778811100024· OSTI ID:22043848

Borzov, I. N., E-mail: [e-mail] ^[1]

---

1. Joint Institute of Heavy Ion Research (United States)

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 {beta}-decay total energy releases, half-lives and {beta}-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.

• OSTI ID: 22043848
• Journal Information: Physics of Atomic Nuclei, Vol. 74, Issue 10; Other Information: Copyright (c) 2011 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7788
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BETA DECAY
BRANCHING RATIO
DELAYED NEUTRONS
DENSITY FUNCTIONAL METHOD
ENERGY DENSITY
GAMOW-TELLER RULES
HALF-LIFE
NUCLEAR STRUCTURE
NUCLEI
R PROCESS
RANDOM PHASE APPROXIMATION
SHELL MODELS
SPHERICAL CONFIGURATION
WEAK INTERACTIONS