Experimental identification of the $T = 1$, $J^π = 6^+$ state of $^{54}$Co and isospin symmetry in $A = 54$ studied via one-nucleon knockout reactions
M. Spieker,
D. Weisshaar,
A. Gade
et al.
Abstract:New experimental data obtained from γ-ray tagged one-neutron and one-proton knockout from 55 Co is presented. A candidate for the sought-after T = 1, Tz = 0, J π = 6 + state in 54 Co is proposed based on a comparison to the new data on 54 Fe, the corresponding observables predicted by large-scale-shell-model (LSSM) calculations in the full f p-model space employing charge-dependent contributions, and isospin-symmetry arguments. Furthermore, possible isospin-symmetry breaking in the A = 54, T = 1 triplet is st… Show more
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