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APS » Journals » Phys. Rev. Lett. » Volume 103 » Issue 1
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Phys. Rev. Lett. 103, 012502 (2009) [4 pages]

Isospin Mixing in Nuclei within the Nuclear Density Functional Theory

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W. Satuła1, J. Dobaczewski1,2, W. Nazarewicz3,4,1, and M. Rafalski1
1Institute of Theoretical Physics, University of Warsaw, ul. Hoża 69, 00-681 Warsaw, Poland
2Department of Physics, P.O. Box 35 (YFL), FI-40014, University of Jyväskylä, Finland
3Department of Physics & Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
4Physics Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831, USA

Received 6 March 2009; published 1 July 2009

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.

© 2009 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.103.012502
DOI:
10.1103/PhysRevLett.103.012502
PACS:
21.10.Hw, 21.30.Fe, 21.60.Jz, 23.40.Hc
 
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