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Anomalous isomeric decays in 174Lu as a probe of K-mixing and interactions in deformed nuclei

Dracoulis, George; Kondev, Filip G; Lane, Gregory; Byrne, Aidan; McGoram, T; Kibedi, Tibor; Ahmad, I; Carpenter, M P; Janssens, R V F; Lauritsen, T; Lister, C J; Seweryniak, D; Chowdhury, P; Tandel, S K

Description

A Kπ=13+, 280 ns four-quasiparticle isomer in the odd-odd nucleus 174Lu has been identified and characterized. The isomer decays to both Kπ=7+ and Kπ=0+ rotational bands obtained from the parallel and antiparallel coupling of the proton 7/2+[404] and neutron 7/2+[633] orbitals. K mixing caused by particle-rotation coupling explains the anomalously fast transition rates to the 7+ band but those to the 0+ band are caused by a chance degeneracy between the isomer and a collective state, allowing...[Show more]

dc.contributor.authorDracoulis, George
dc.contributor.authorKondev, Filip G
dc.contributor.authorLane, Gregory
dc.contributor.authorByrne, Aidan
dc.contributor.authorMcGoram, T
dc.contributor.authorKibedi, Tibor
dc.contributor.authorAhmad, I
dc.contributor.authorCarpenter, M P
dc.contributor.authorJanssens, R V F
dc.contributor.authorLauritsen, T
dc.contributor.authorLister, C J
dc.contributor.authorSeweryniak, D
dc.contributor.authorChowdhury, P
dc.contributor.authorTandel, S K
dc.date.accessioned2009-08-25T06:16:03Z
dc.date.accessioned2010-12-20T06:05:56Z
dc.date.available2009-08-25T06:16:03Z
dc.date.available2010-12-20T06:05:56Z
dc.identifier.citationPhysical Review Letters 97.12 (2006): 122501/1-4
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.urihttp://hdl.handle.net/10440/765
dc.identifier.urihttp://digitalcollections.anu.edu.au/handle/10440/765
dc.description.abstractA Kπ=13+, 280 ns four-quasiparticle isomer in the odd-odd nucleus 174Lu has been identified and characterized. The isomer decays to both Kπ=7+ and Kπ=0+ rotational bands obtained from the parallel and antiparallel coupling of the proton 7/2+[404] and neutron 7/2+[633] orbitals. K mixing caused by particle-rotation coupling explains the anomalously fast transition rates to the 7+ band but those to the 0+ band are caused by a chance degeneracy between the isomer and a collective state, allowing the mixing matrix element for a large K difference to be deduced.
dc.format4 pages
dc.publisherAmerican Physical Society
dc.rightshttp://www.sherpa.ac.uk/romeo/index.php "Author can archive pre-print (ie pre-refereeing) … post-print (ie final draft post-refereeing) … [and] publisher's version/PDF. Link to publisher version … [and] Copyright notice required. Publisher's version/PDF can be used on … employers web site." - from SHERPA/RoMEO site (as at 25/02/10). ©2006 The American Physical Society
dc.sourcePhysical Review Letters
dc.source.urihttp://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRLTAO000097000012122501000001&idtype=cvips&gifs=Yes
dc.subjectKeywords: Band structure; Isomers; Mixing; Probes; Protons; Deformed nuclei; Isomer decays; Particle-rotation coupling; Rotational bands; Lutetium compounds
dc.titleAnomalous isomeric decays in 174Lu as a probe of K-mixing and interactions in deformed nuclei
dc.typeJournal article
local.description.refereedYes
local.identifier.citationvolume97
dc.date.issued2006-09-18
local.identifier.absfor020203
local.identifier.ariespublicationMigratedxPub13313
local.type.statusPublished Version
local.contributor.affiliationDracoulis, George, Research School of Physical Sciences and Engineering, Department of Nuclear Physics
local.contributor.affiliationKondev, Filip G, Argonne National Laboratory
local.contributor.affiliationLane, Gregory, Research School of Physical Sciences and Engineering, Department of Nuclear Physics
local.contributor.affiliationByrne, Aidan, Research School of Physical Sciences and Engineering, Department of Nuclear Physics
local.contributor.affiliationMcGoram, T., Research School of Physical Sciences and Engineering, Department of Nuclear Physics
local.contributor.affiliationKibedi, Tibor, Research School of Physical Sciences and Engineering, Department of Nuclear Physics
local.contributor.affiliationAhmad, I., Argonne National Laboratory
local.contributor.affiliationCarpenter, M P, Argonne National Laboratory
local.contributor.affiliationJanssens, R V F, Argonne National Laboratory
local.contributor.affiliationJanssens, R V F, Argonne National Laboratory
local.contributor.affiliationLauritsen, T, Argonne National Laboratory
local.contributor.affiliationLister, C J, Argonne National Laboratory
local.contributor.affiliationSeweryniak, D, Argonne National Laboratory
local.contributor.affiliationChowdhury, P, University of Massachusetts
local.contributor.affiliationTandel, S K, University of Massachusetts
local.bibliographicCitation.issue12
local.bibliographicCitation.startpage122501-1-4
local.identifier.doi10.1103/PhysRevLett.97.122501
dc.date.updated2015-12-12T07:51:54Z
local.identifier.scopusID2-s2.0-33748797677
CollectionsANU Research Publications

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