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Core-excited states and the yrast line in 208Po

✍ Scribed by A.R. Poletti; G.D. Dracoulis; A.P. Byrne; A.E. Stuchbery; B. Fabricius; T. Kibèdi; P.M. Davidson

Publisher: Elsevier Science
Year: 1997
Tongue: English
Weight: 925 KB
Volume: 615
Category: Article
ISSN: 0375-9474
DOI: 10.1016/s0375-9474(96)00428-9

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✦ Synopsis

The properties of high-spin states in 2°8Po have been investigated using the 2°4Hg(gBe,5n)2°SPo reaction at a bombarding energy of 62 MeV. Decay properties for states in 2°8po up to an excitation energy of 9643 keV and spins up to J = 24 have been deduced. The level scheme is compared with predictions of multi-particle shell-model calculations and evidence is presented that the coreexcited states intrude into the decay sequence at an excitation energy near 6500 keV, although they do not form isomers. Above 7.5 MeV the yrast line is dominated by core-excited states. (~) 1997 Elsevier Science B.V.

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