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
Published inActa Physica Polonica B : Proceedings Supplement
© 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.
ConferenceNuclear Physics Workshop “Marie and Pierre Curie”
Is part of publicationXXIII Nuclear Physics Workshop “Marie and Pierre Curie” Essential Problems in Nuclear Physics : Proceedings
ISSN Search the Publication Forum1899-2358
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Except where otherwise noted, this item's license is described as © the Authors 2017. This is an open access article distributed under the terms of a Creative Commons License. Funded by SCOAP3.
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