Theoretical analysis of isospin mixing with the β decay of Zn56

Na Smirnova (1) , Bertram Blank (1) , Ba Brown, , Wa Richter, , N Benouaret, , Yh Lam,

1 CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan

We present a shell-model analysis of the β decay of Zn56. The calculations are performed using isospin-nonconserving Hamiltonians constructed on the basis of the GXPF1A and KB3G interactions. Our theoretical results reproduce the essential features of the decay of Zn56 and explain the surprising competition between β-delayed proton and γ-ray emission from the isobaric analog state.

Domaines: Physique [physics]

Na Smirnova, Bertram Blank, Ba Brown,, Wa Richter,, N Benouaret,, et al.. Theoretical analysis of isospin mixing with the β decay of Zn56. Physical Review C, 2016, 93, pp.044305. ⟨10.1103/PhysRevC.93.044305⟩. ⟨hal-01311084⟩