https://doi.org/10.1140/epja/s10050-024-01263-0
Regular Article - Experimental Physics
Superallowed beta-decay between isobaric analog states up to 
Physics Department E12, Technical University of Munich, James-Franck-Str. 1, 85748, Garching, Germany
a
thomas.faestermann@ph.tum.de
Received:
8
December
2023
Accepted:
5
February
2024
Published online:
22
February
2024
Isospin symmetry is used to fit the precisely known 
-values of lighter 
and 
-emitters and to extrapolate them up to 
. For the 
emitters the half-lives of the pure 
Fermi decays are calculated and compared with experimentally known values, even for the heaviest cases where the experimental uncertainties are still rather large. For the 
emitters only the Fermi component of the transitions can be predicted, but with the experimental half-lives the ratio of Gamow–Teller to Fermi strength can be determined.
© The Author(s) 2024
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