Shell-model calculation of isospin-symmetry breaking correction to superallowed Fermi beta decay
Xayavong, L., Smirnova, N. A., Bender, M., & Bennaceur, K. (2017). Shell-model calculation of isospin-symmetry breaking correction to superallowed Fermi beta decay. In XXIII Nuclear Physics Workshop “Marie and Pierre Curie” Essential Problems in Nuclear Physics : Proceedings (pp. 285-290). Jagiellonian University. Acta Physica Polonica B : Proceedings Supplement, 10. https://doi.org/10.5506/APhysPolBSupp.10.285
Julkaistu sarjassa
Acta Physica Polonica B : Proceedings SupplementPäivämäärä
2017Tekijänoikeudet
© the Authors 2017. This is an open access article distributed under the terms of a Creative Commons License. Funded by SCOAP3.
We investigate the radial-overlap part of the isospin-symmetry breaking
correction to superallowed 0
+ → 0
+ β decay. The 8 sd-shell emitters
with masses between A = 22 and A = 38 have been re-examined. The
Fermi matrix element is evaluated with realistic spherical single-particle
wave functions, obtained from spherical Woods–Saxon (WS) or Hartree–
Fock (HF) potentials, fine-tuned to reproduce the experimental data on
charge radii and separation energies for nuclei of interest. The elaborated
adjustment procedure removes any sensitivity of the correction to a specific
parametrisation of the WS potential or to various versions of the Skyrme
interaction. The present results are generally in a good agreement with
those already reported. At the same time, we find that the calculations with
HF wave functions result in systematically lower values of the correction.
Julkaisija
Jagiellonian UniversityKonferenssi
Nuclear Physics Workshop “Marie and Pierre Curie”Kuuluu julkaisuun
XXIII Nuclear Physics Workshop “Marie and Pierre Curie” Essential Problems in Nuclear Physics : ProceedingsISSN Hae Julkaisufoorumista
1899-2358Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/26987202
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