Abstract
We have measured the asymmetry coefficientsA of the circularly polarizedβ-γ-angular correlations for the allowedβ-transitions in21F and39Cl. Thus, it was possible to estimate the isospin-forbidden Fermi matrix elements ¦MF¦forb.
A mixing ratioδ E3/M2= −0.20±0.04 was obtained for the 1.52 MeV γ-transition in39A. We also discuss the possibility of a charge-dependent analog-antianalog interaction in the21 Ne nucleus.
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Farman, M., Loose, R., Rechenberg, H.v. et al. Dieβ-γ-Zirkularpolarisationskorrelation bei21F und39Cl. Z Physik A 277, 173–179 (1976). https://doi.org/10.1007/BF01433710
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DOI: https://doi.org/10.1007/BF01433710