Title of article
Core-excitations in 209Po Original Research Article
Author/Authors
A.R. Poletti، نويسنده , , G.D. Dracoulis، نويسنده , , A.P. Byrne، نويسنده , , A.E. Stuchbery، نويسنده , , B. Fabricius، نويسنده , , T. KIBEDI، نويسنده , , P.M. Davidson، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2000
Pages
14
From page
318
To page
331
Abstract
The properties of high spin states in 209Po have been investigated using the 204Hg (9Be,4n) 209Po reaction at a bombarding energy of 62 MeV. Decay properties for states in 209Po up to an excitation energy of 8392 keV and spins up to J=(47/2) have been deduced. The mean life of the level at 4266 keV was determined as 172(5) ns and a limit of <15 ns was determined for that at 5504 keV. The level scheme is compared with predictions of multi-particle shell model calculations. The lowest core excited state is confirmed to be the 31/2− state at 4266 keV. Another core excited state lies at 5356 keV, while above 5.5 MeV the yrast line is exclusively composed of such excitations.
Keywords
E=55–65 MeV , Semi-empirical shell model , I?(?) , Measured ??(t) , E? , T) , Linear polarisation , 209Po deduced high spin levels J , ? , 4n)209Po , Calculated levels , Enriched target , Pulsed beam , Compton suppressed detectors , Ge hyper pure detectors in linear polarimeter , I?(E , NUCLEAR REACTIONS 204Hg(9Be , NUCLEAR STRUCTURE 209Po , T1/2
Journal title
Nuclear physics A
Serial Year
2000
Journal title
Nuclear physics A
Record number
1191808
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