Abstract
Neutron-rich nuclei in the lead region, beyond N=126, have been studied at the FRS-RISING setup at GSI, exploiting the fragmentation of a primary uranium beam. Two isomeric states have been identified in 210Hg: the 8+ isomer expected from the seniority scheme in the νg9/2 shell and a second one at low spin and low excitation energy. The decay strength of the 8+ isomer confirms the need of effective three-body forces in the case of neutron-rich lead isotopes. The other unexpected low-lying isomer has been tentatively assigned as a 3- state, although this is in contrast with theoretical expectations.
Original language | English |
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Pages (from-to) | 292-296 |
Number of pages | 5 |
Journal | Physics Letters B |
Volume | 725 |
Issue number | 4-5 |
DOIs | |
Publication status | Published - 1 Oct 2013 |