6533b853fe1ef96bd12ad4b6

RESEARCH PRODUCT

Half-life and configuration of the 1/2+ intruder state in203Bi

Juha ÄYstöV. KoponenH. HyvönenT. LönnrothP. TaskinenJ. ÄRjeJ. Honkanen

subject

PhysicsNuclear and High Energy PhysicsIsotopeNuclear fusionHalf-lifeElementary particleAtomic physicsFirst orderIonIntruder state

description

The decay properties of theJπ=1/2+,Eexc=1,098 keV state in203Bi were studied. The state was populated via the204Pb(p, 2n) reaction and the activity was studied with the ion guide isotope separator on-line system IGISOL. The half-life of the 1/2+ state was measured to beT1/2=303 ±5 ms. From this value the partial half-lives of the three depopulating branches 1/2+ →7/2− (E3), 1/2+→5/2− (E3 +M2) and 1/2+→9/2 g.s. − (M4) were deduced. Since all the transitions are configuration forbidden in first order, a detailed study of second-order shell-model configuration mixing could be performed.

https://doi.org/10.1007/bf01415627