Isospin Mixing in Nuclei around N similar or equal to Z and the Superallowed beta-decay
2011 (English)In: Acta Physica Polonica B, ISSN 0587-4254, Vol. 42, no 3-4, 415-425 p.Article in journal (Refereed) Published
Theoretical approaches that use one-body densities as dynamical variables, such as Hartree-Fock or the density functional theory (DFT), break isospin symmetry both explicitly, by virtue of charge-dependent interactions, and spontaneously. To restore the spontaneously broken isospin symmetry, we implemented the isospin-projection scheme on top of the Skyrme-DFT approach. This development allows for consistent treatment of isospin mixing in both ground and exited nuclear states. In this study, we apply this method to evaluate the isospin impurities in ground states of even-even and odd-odd N similar or equal to Z nuclei. By including simultaneous isospin and angular-momentum projection, we compute the isospin-breaking corrections to the 0(+) -> 0(+) superallowed beta-decay.
Place, publisher, year, edition, pages
2011. Vol. 42, no 3-4, 415-425 p.
projected hartree-fock, slater determinants, symmetry
IdentifiersURN: urn:nbn:se:kth:diva-39675DOI: 10.5506/APhysPolB.42.415ISI: 000289009300004ScopusID: 2-s2.0-79953717748OAI: oai:DiVA.org:kth-39675DiVA: diva2:440249
Conference: Conference on Nuclear Physics - Extremes of the Nuclear Landscape. Zakopane, POLAND. AUG 30-SEP 05, 20102011-09-122011-09-122011-09-12Bibliographically approved