First-forbidden mirror beta-decays in A=17 mass region
classification
⚛️ nucl-th
keywords
mirrorbeta-decayfirst-forbiddensmecallowsasymmetriesasymmetrybeta-decays
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The first-forbidden beta-decay of 17Ne into the 'halo' state J=1/2+ of 17F presents one of the largest measured asymmetries for mirror beta-decay feeding bound final states. This asymmetry is studied in the framework of the Shell Model Embedded in the Continuum (SMEC). The spatial extent of single particle orbits is constrained by the proton capture cross-section 16O(p,gamma)17F calculated in SMEC . This allows to estimate the mirror symmetry breaking in 17F/17O and 17Ne/17N nuclei.
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