Nuclear Seminar - Jozef Mišt (15.10.2025)

Wednesday 15.10.2025 at 14:00, Lecture room F1/364

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Mgr. Jozef Mišt, PhD.: 
Decay spectroscopy of neutron-deficient isotope ¹⁸²Au

Abstract: 
Neutron-deficient isotopes in the lead region near the N=104 mid-shell are well-known to exhibit shape coexistence. One such nucleus is ¹⁸²Pt, daughter nucleus after electron capture or β⁺ decay of ¹⁸²Au, where a prolate and weakly oblate configurations coexist. Gamma-ray spectroscopy after β decay allows us to identify and study levels in the daughter nucleus up to relatively high excitation energy. Since β decay is sensitive to changes in nuclear structure, β-decay feeding patterns and log ft values can be used to probe shape coexistence and configuration mixing in the daughter nucleus. These isotopes were studied at the ISOLDE facility at CERN during the IS665 experiment. During the seminar, the results of the detailed γ-γ coincidence analysis of data from this experiment will be presented. An unusually high β-decay feeding intensity to 4^{+ l}evels was observed and possible explanations will be discussed.

 

 

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