Speaker
Description
Summary
A self-consistent approach to calculate the effects of the isospin-symmetry-breaking corrections to the superallowed Fermi beta decay between T=1 0+ analog states will be presented and results for analogs in the A~70 mass region will be reported.
The Gamow-Teller strength distributions and the half-lives for the beta decay of the ground state and the lowest-excited states of waiting point nuclei in this mass region are obtained using the same variational approach, complex Excited Vampir approach.
The model allows to describe self-consistently the shape coexistence and mixing in both parent and daughter nucleus using a large model space and realistic effective interactions obtained renormalizing the G-matrix for nuclear matter based on OBEP potential (Bonn A / Bonn CD). The results are compared with the available data and estimates of the effects in the astrophysical environment of the X-ray bursts are disscused.
