Abstract
Isomeric states in isotopes in the vicinity of doubly-magic 208 Pb were populated following reactions of a relativistic 208 Pb primary beam impinging on a 9 Be fragmentation target. Secondary beams of 198,200,202,206 Pb and 206 Hg were isotopically separated and implanted in a passive stopper positioned in the focal plane of the GSI Fragment Separator. Delayed γ rays were detected with the Advanced Gamma Tracking Array (AGATA). Decay schemes were re-evaluated and interpreted with shell-model calculations. The momentum-dependent population of isomeric states in the two-nucleon hole nuclei 206 Pb/ 206 Hg was found to differ from the population of multi neutron-hole isomeric states in 198,200,202 Pb.
Original language | English |
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Article number | 035105 |
Journal | Journal of Physics G: Nuclear and Particle Physics |
Volume | 45 |
Issue number | 3 |
DOIs | |
Publication status | Published - 12 Feb 2018 |
Bibliographical note
© 2018 IOP Publishing Ltd. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy.Keywords
- γ-ray spectroscopy, relativistic projectile fragmentation, direct reactions, isomeric decays, electromagnetic transitions, nuclear shell model