Study of isomeric states in 198,200,202,206Pb and 206Hg populated in fragmentation reactions

Isomericstates 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 separatedand 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 schemeswere re-evaluated and interpreted with shell-modelcalculations. The momentum-dependent population of isomericstates in the two-nucleon hole nuclei 206Pb/206Hg was found to differ from the population of multi neutron-hole isomericstates in 198;200;202Pb.