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High-spin yrast structure of Hg-204 from the decay of a four-hole, 22(+) isomer

Wrzesinski, J; Lane, Gregory; Maier, K.; Janssens, R V F; Dracoulis, George; Broda, R.; Byrne, Aidan; Carpenter, M P; Clark, R M; Cromaz, M.; Fornal, B.; Lauritsen, T; Macchiavelli, A O; Rejmund, M; Szpak, B.; Vetter, K; Zhu, S.

Description

A high-spin isomer with τ>700 ns has been found in Hg204, populated in reactions of 1360-MeV Pb208 and 330-MeV Ca48 beams with a thick U238 target and a 1450-MeV Pb208 beam on a thick Pb208 target. The observed γ-ray decay of the isomer has established the yrast states below it, including another isomer with τ=33(3) ns. The experimental results are compared with shell-model calculations that include four holes in the configuration space between Sn132 and Pb208. The available spectroscopic...[Show more]

dc.contributor.authorWrzesinski, J
dc.contributor.authorLane, Gregory
dc.contributor.authorMaier, K.
dc.contributor.authorJanssens, R V F
dc.contributor.authorDracoulis, George
dc.contributor.authorBroda, R.
dc.contributor.authorByrne, Aidan
dc.contributor.authorCarpenter, M P
dc.contributor.authorClark, R M
dc.contributor.authorCromaz, M.
dc.contributor.authorFornal, B.
dc.contributor.authorLauritsen, T
dc.contributor.authorMacchiavelli, A O
dc.contributor.authorRejmund, M
dc.contributor.authorSzpak, B.
dc.contributor.authorVetter, K
dc.contributor.authorZhu, S.
dc.date.accessioned2018-11-30T01:19:02Z
dc.date.available2018-11-30T01:19:02Z
dc.identifier.issn2469-9985
dc.identifier.urihttp://hdl.handle.net/1885/153909
dc.description.abstractA high-spin isomer with τ>700 ns has been found in Hg204, populated in reactions of 1360-MeV Pb208 and 330-MeV Ca48 beams with a thick U238 target and a 1450-MeV Pb208 beam on a thick Pb208 target. The observed γ-ray decay of the isomer has established the yrast states below it, including another isomer with τ=33(3) ns. The experimental results are compared with shell-model calculations that include four holes in the configuration space between Sn132 and Pb208. The available spectroscopic information, including transition strengths, total conversion, and angular correlation coefficients, together with the observed agreement with the calculations, allows spin, parity, and configuration assignments to be proposed for the experimental states. The τ>700 ns isomer is the 22+ state of maximum spin available from the alignment of the four valence holes with the configuration πh11/2-2νi13/2-2.
dc.format.mimetypeapplication/pdf
dc.publisherAmerican Physical Society
dc.rightsANU-P/4009
dc.sourcePhysical Review C: Nuclear Physics
dc.titleHigh-spin yrast structure of Hg-204 from the decay of a four-hole, 22(+) isomer
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume92
dc.date.issued2015
local.identifier.absfor020202 - Nuclear Physics
local.identifier.ariespublicationU3488905xPUB6729
local.type.statusPublished Version
local.contributor.affiliationWrzesinski, J, Niewodniczanski Institute of Nuclear Physics
local.contributor.affiliationLane, Gregory, College of Science, ANU
local.contributor.affiliationMaier, K., College of Science, ANU
local.contributor.affiliationJanssens, R V F, Argonne National Laboratory
local.contributor.affiliationDracoulis, George, College of Science, ANU
local.contributor.affiliationBroda, R., Niewodniczanski Institute of Nuclear Physics
local.contributor.affiliationByrne, Aidan, College of Science, ANU
local.contributor.affiliationCarpenter, M P , Argonne National Laboratory
local.contributor.affiliationClark, R M, Lawrence Berkeley National Laboratory
local.contributor.affiliationCromaz, M., Lawrence Berkeley National Laboratory
local.contributor.affiliationFornal, B., Niewodniczanski Institute of Nuclear Physics
local.contributor.affiliationLauritsen, T, Argonne National Laboratory
local.contributor.affiliationMacchiavelli, A O, Lawrence Berkeley National Laboratory
local.contributor.affiliationRejmund, M, CEA-Saclay
local.contributor.affiliationSzpak, B., Polish Academy of Sciences
local.contributor.affiliationVetter, K, Lawrence Berkeley National Laboratory
local.contributor.affiliationZhu, S., Argonne National Laboratory
local.bibliographicCitation.issue4
local.identifier.doi10.1103/PhysRevC.92.044327
dc.date.updated2018-11-29T08:18:21Z
local.identifier.scopusID2-s2.0-84946615247
local.identifier.thomsonID000363524900004
dcterms.accessRightsOpen Access
CollectionsANU Research Publications

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