6533b85cfe1ef96bd12bd211

RESEARCH PRODUCT

Isomeric states in proton-unbound 187, 189Bi isotopes

P. RahkilaA. HürstelK. HauschildA. KeenanW. KortenJuha UusitaloY. Le CozT. EnqvistS. JuutinenPeter M. JonesM. MuikkuPaivi NieminenAndrei AndreyevCh. TheisenH. KankaanpääMatti LeinoPaul GreenleesM. RejmundF. BeckerE. BouchezJanne PakarinenHeikki KettunenPasi KuusiniemiA.-p. LeppänenR. Julin

subject

PhysicsNuclear and High Energy PhysicsIsotopeProtonAstrophysics::High Energy Astrophysical PhenomenaHadronchemistry.chemical_elementBismuthNuclear physicsRecoilchemistryNuclear fusionAtomic physicsNuclear ExperimentSpectroscopy

description

Prompt and delayed gamma-ray spectroscopy of very neutron-deficient bismuth isotopes 187, 189Bi has been performed using the Recoil Decay Tagging (RTD) method. The isomeric i 13/2 states have been identified and their lifetimes have been measured. The systematics of these long-lived M2 isomers has been extended to the proton-unbound isotopes. The general behaviour of single-proton states is discussed within the systematics and interpreted within the shell-model framework.

https://doi.org/10.1140/epja/i2002-10032-x