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Population of a low-spin positive-parity band from high-spin intruder states in 177Au: The two-state mixing effect

2020

The extremely neutron-deficient isotopes 177,179Au were studied by means of in-beam ?-ray spectroscopy. Specific tagging techniques, ?-decay tagging in 177Au and isomer tagging in 179Au, were used for these studies. Feeding of positive-parity, nearly spherical states, which are associated with 2d3/2 and 3s1/2 proton-hole configurations, from the 1i13/2 proton-intruder configuration was observed in 177Au. Such a decay path has no precedent in odd-Au isotopes and it is explained by the effect of mixing of wave functions of the initial state. © 2020

Nuclear and High Energy Physics? rays179AuPopulation177Au7. Clean energy01 natural scienceskultaIn-beam spectroscopyγ rays0103 physical sciencesMixing effect010306 general physicsWave functioneducationSpectroscopyNuclear Experimenttwo-state mixingPhysicsisotoopiteducation.field_of_studyin-beam spectroscopyIsotope010308 nuclear & particles physicsAu-177Parity (physics)Au-179lcsh:QC1-999gamma raysTwo-state mixingAtomic physicsydinfysiikkalcsh:Physics
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