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Isospin Mixing in Nuclei within the Nuclear Density Functional Theory

2009; American Physical Society; Volume: 103; Issue: 1 Linguagem: Inglês

10.1103/physrevlett.103.012502

1092-0145

W. Satuła, J. Dobaczewski, W. Nazarewicz, M. Rafalski,

Atomic and Molecular Physics

We present the self-consistent, nonperturbative analysis of isospin mixing using the nuclear density functional approach and the rediagonalization of the Coulomb interaction in the good-isospin basis. The unphysical isospin violation on the mean-field level, caused by the neutron excess, is eliminated by the proposed method. We find a significant dependence of the magnitude of isospin breaking on the parametrization of the nuclear interaction. A rough correlation has been found between the isospin-mixing parameter and the difference of proton and neutron rms radii.