New isomers in the full seniority scheme of neutron-rich lead isotopes: The role of effective three-body forces
作者： Y. Ayyad , N. Alkhomashi , P. R. P. Allegro , D. Bazzacco , J. Benlliure
DOI: 10.1103/PHYSREVLETT.109.162502
关键词: Body force 、 Nuclear physics 、 Atomic physics 、 Isotope 、 Fragmentation (mass spectrometry) 、 Three-body force 、 SHELL model 、 Neutron 、 Physics 、 Uranium 、 Valence (chemistry)
摘要: The neutron-rich lead isotopes, up to (216)Pb, have been studied for the first time, exploiting fragmentation of a primary uranium beam at FRS-RISING setup GSI. observed isomeric states exhibit electromagnetic transition strengths which deviate from state-of-the-art shell-model calculations. It is shown that their complete description demands introduction effective three-body interactions and two-body operators in conventional neutron valence space beyond (208)Pb.
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