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Increased isomeric lifetime of hydrogen-like Os-192m

Akber, Aqeel; Reed, Matthew; Litvinov, Yu.A.; Lane, Gregory; Kibedi, Tibor; Blaum, K.; Carroll, J.J.; Cullen, D M; Detwiler, B.; Dimopoulou, C.; Dracoulis, George; Farinon, F.; Geissel, H.; Heil, M.; Kozhuharov, C.; Kurcewicz, J.; Kuzminchuk, N.; Litvinov, S.; Nociforo, C.; Nolden, F.; Prochazka, A.; Scheidenberger, C.; Shubina, D; Steck, M.; Trees, G.; Weick, H.; Winckler, N.; Winkler, M.

Description

An excited metastable nuclear state of 192 Os in a hydrogen-like charge state has been studied for the first time. It was populated in projectile fragmentation of a 197Au beam on a 9Be target with the UNILAC-SIS accelerators at GSI. Fragmentation products in the region of interest were passed through the fragment separator and injected into the experimental storage ring (ESR). Cooling of the injected beam particles enabled Schottky mass spectrometry to be performed. Analysis shows the lifetime...[Show more]

dc.contributor.authorAkber, Aqeel
dc.contributor.authorReed, Matthew
dc.contributor.authorLitvinov, Yu.A.
dc.contributor.authorLane, Gregory
dc.contributor.authorKibedi, Tibor
dc.contributor.authorBlaum, K.
dc.contributor.authorCarroll, J.J.
dc.contributor.authorCullen, D M
dc.contributor.authorDetwiler, B.
dc.contributor.authorDimopoulou, C.
dc.contributor.authorDracoulis, George
dc.contributor.authorFarinon, F.
dc.contributor.authorGeissel, H.
dc.contributor.authorHeil, M.
dc.contributor.authorKozhuharov, C.
dc.contributor.authorKurcewicz, J.
dc.contributor.authorKuzminchuk, N.
dc.contributor.authorLitvinov, S.
dc.contributor.authorNociforo, C.
dc.contributor.authorNolden, F.
dc.contributor.authorProchazka, A.
dc.contributor.authorScheidenberger, C.
dc.contributor.authorShubina, D
dc.contributor.authorSteck, M.
dc.contributor.authorTrees, G.
dc.contributor.authorWeick, H.
dc.contributor.authorWinckler, N.
dc.contributor.authorWinkler, M.
dc.date.accessioned2018-11-30T01:19:01Z
dc.date.available2018-11-30T01:19:01Z
dc.identifier.issn2469-9985
dc.identifier.urihttp://hdl.handle.net/1885/153906
dc.description.abstractAn excited metastable nuclear state of 192 Os in a hydrogen-like charge state has been studied for the first time. It was populated in projectile fragmentation of a 197Au beam on a 9Be target with the UNILAC-SIS accelerators at GSI. Fragmentation products in the region of interest were passed through the fragment separator and injected into the experimental storage ring (ESR). Cooling of the injected beam particles enabled Schottky mass spectrometry to be performed. Analysis shows the lifetime of the state to be considerably longer than that of the neutral ion [τneut=8.5(14) s]; this change is attributed to hindrance of internal conversion in hydrogen-like 192Os. Calculations have been performed to estimate the lifetime, and the result has been compared with that measured experimentally. There is good agreement between the expected [τH−like=13.0(24)s] and measured lifetimes (τrest=15.1+1.5−1.3s) from the internal decay of 192mOs. This provides a test for the reliability of the values obtained from internal conversion coefficient calculations in highly ionized systems and is the first measurement of its kind to be performed using the ESR setup.
dc.format.mimetypeapplication/pdf
dc.publisherAmerican Physical Society
dc.sourcePhysical Review C: Nuclear Physics
dc.titleIncreased isomeric lifetime of hydrogen-like Os-192m
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume91
dc.date.issued2015
local.identifier.absfor020202 - Nuclear Physics
local.identifier.ariespublicationU3488905xPUB24717
local.type.statusPublished Version
local.contributor.affiliationAkber, Aqeel, College of Science, ANU
local.contributor.affiliationReed, Matthew, College of Science, ANU
local.contributor.affiliationLitvinov, Yu.A., Max-Planck-Institut fur Kernphysik
local.contributor.affiliationLane, Gregory, College of Science, ANU
local.contributor.affiliationKibedi, Tibor, College of Science, ANU
local.contributor.affiliationBlaum, K., Max-Planck-Institut fur Kernphysik
local.contributor.affiliationCarroll, J.J., US Army Research Laboratory
local.contributor.affiliationCullen, D M, University of Liverpool
local.contributor.affiliationCullen, D M, University of Manchester
local.contributor.affiliationDetwiler, B., Youngstown State University
local.contributor.affiliationDimopoulou, C., GSI Helmholtzzentrum fur Schwerionenforschung
local.contributor.affiliationDracoulis, George, College of Science, ANU
local.contributor.affiliationFarinon, F., GSI Helmholtzzentrum fur Schwerionenforschung
local.contributor.affiliationGeissel, H., GSI Helmholtzzentrum fur Schwerionenforschung
local.contributor.affiliationHeil, M., GSI Helmholtzzentrum fur Schwerionenforschung
local.contributor.affiliationKozhuharov, C., GSI Helmholtzzentrum fur Schwerionenforschung
local.contributor.affiliationKurcewicz, J., GSI Helmholtzzentrum fur Schwerionenforschung
local.contributor.affiliationKuzminchuk, N., GSI Helmholtzzentrum fur Schwerionenforschung
local.contributor.affiliationLitvinov, S., GSI Helmholtzzentrum fur Schwerionenforschung
local.contributor.affiliationNociforo, C., GSI Helmholtzzentrum fur Schwerionenforschung
local.contributor.affiliationNolden, F., GSI Helmholtzzentrum fur Schwerionenforschung
local.contributor.affiliationProchazka, A., GSI Helmholtzzentrum fur Schwerionenforschung
local.contributor.affiliationScheidenberger, C., GSI Helmholtzzentrum fur Schwerionenforschung
local.contributor.affiliationShubina, D, Max-Planck-Institut fur Kernphysik
local.contributor.affiliationSteck, M., GSI Helmholtzzentrum fur Schwerionenforschung
local.contributor.affiliationTrees, G., Youngstown State University
local.contributor.affiliationWeick, H., GSI Helmholtzzentrum fur Schwerionenforschung
local.contributor.affiliationWinckler, N., Max-Planck-Institut fur Kernphysik
local.contributor.affiliationWinkler, M., GSI Helmholtzzentrum fur Schwerionenforschung
local.bibliographicCitation.issue3
local.identifier.doi10.1103/PhysRevC.91.031301
dc.date.updated2018-11-29T08:18:18Z
local.identifier.scopusID2-s2.0-84926063796
local.identifier.thomsonID000351733200001
dcterms.accessRightsOpen Access
CollectionsANU Research Publications

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