6533b857fe1ef96bd12b38f3

RESEARCH PRODUCT

Spectroscopy of very neutron-deficient 187,189Bi isotopes

Nieminen PPeter M. JonesW. KortenA. SaveliusS. JuutinenM. RejmundM. MuikkuH. KankaanpääA. KeenanF. BeckerP. RahkilaA. HürstelE. BouchezJuha UusitaloK. HauschildHeikki KettunenMatti LeinoP. A. ButlerPaul GreenleesCh. TheisenY. Le CozPasi KuusiniemiR. JulinAndrei Andreyev

subject

PhysicsIsotopes of potassiumIsotopeAtomic orbitalExcited stateNuclear TheoryNeutronNuclear ExperimentGround stateSpectroscopyMolecular physicsExcitation

description

Shape coexistence is well known to occur in nuclei, in particular near closed shells [1], where particle-hole excitations across the shell gap can create deformed intruder states. In the neutron-deficient lead isotopes (Z = 82), deformed structures appear at low excitation energy. The isotope 188Pb [2] shows for example a triple shape coexistence with oblate and prolate excited 0+ states that compete with the spherical ground state. The study of the odd-proton single-particle excitations in Bi isotopes allows to obtain information on the orbitals involved in the different shapes observed in this mass region.

yearjournalcountryeditionlanguage
2003-01-01
https://doi.org/10.1007/978-3-642-55560-2_119