1. Study of isomeric states in 198,200,202,206Pb and 206Hg populated in fragmentation reactions.
- Author
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N Lalović, D Rudolph, Zs Podolyák, L G Sarmiento, E C Simpson, T Alexander, M L Cortés, J Gerl, P Golubev, F Ameil, T Arici, Ch Bauer, D Bazzacco, M A Bentley, P Boutachkov, M Bowry, C Fahlander, A Gadea, J Gellanki, and A Givechev
- Subjects
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METASTABLE states , *FRAGMENTATION reactions , *RELATIVISTIC particles , *PARTICLES (Nuclear physics) , *FOCAL planes - Abstract
Isomeric states in isotopes in the vicinity of doubly-magic 208Pb were populated following reactions of a relativistic 208Pb primary beam impinging on a 9Be fragmentation target. Secondary beams of 198,200,202,206Pb and 206Hg 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 206Pb/206Hg was found to differ from the population of multi neutron-hole isomeric states in 198,200,202Pb. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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