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Evidence for reduced collectivity around the neutron mid-shell in the stable even-mass Sn isotopes from new lifetime measurements

Jungclaus, A.; Walker, J.; Leske, J.; Speidel, K.-H.; Stuchbery, Andrew; East, Michael; Boutachkov, P.; Cederkall, J.; Doornenbal, P.; Egido, J.L.; Ekstrom, A.; Gerl, J; Gernhauser, R.; Goel, N.; Gorska, M; Kojouharov, I; Maier-Komor, P; Modamio, V.; Naqvi, F.; Pietralla, N.; Pietri, S.; Prokopowicz, W.; Schaffner, H.; Schwengner, R.; Wollersheim, H.J.

Description

Precise measurements of the lifetimes of the first excited 2+ states in the stable even-A Sn isotopes112-124Sn have been performed using the Doppler shift attenuation technique. For the isotopes112Sn,114Sn and116Sn the E2 transition strengths deduced from the measured lifetimes are in disagreement with the previously reported values and indicate a shallow minimum at N=66. The observed deviation from a maximum at mid-shell is attributed to the obstructive effect of the s1/2 neutron orbital in...[Show more]

dc.contributor.authorJungclaus, A.
dc.contributor.authorWalker, J.
dc.contributor.authorLeske, J.
dc.contributor.authorSpeidel, K.-H.
dc.contributor.authorStuchbery, Andrew
dc.contributor.authorEast, Michael
dc.contributor.authorBoutachkov, P.
dc.contributor.authorCederkall, J.
dc.contributor.authorDoornenbal, P.
dc.contributor.authorEgido, J.L.
dc.contributor.authorEkstrom, A.
dc.contributor.authorGerl, J
dc.contributor.authorGernhauser, R.
dc.contributor.authorGoel, N.
dc.contributor.authorGorska, M
dc.contributor.authorKojouharov, I
dc.contributor.authorMaier-Komor, P
dc.contributor.authorModamio, V.
dc.contributor.authorNaqvi, F.
dc.contributor.authorPietralla, N.
dc.contributor.authorPietri, S.
dc.contributor.authorProkopowicz, W.
dc.contributor.authorSchaffner, H.
dc.contributor.authorSchwengner, R.
dc.contributor.authorWollersheim, H.J.
dc.date.accessioned2015-12-10T23:17:43Z
dc.identifier.issn0370-2693
dc.identifier.urihttp://hdl.handle.net/1885/65330
dc.description.abstractPrecise measurements of the lifetimes of the first excited 2+ states in the stable even-A Sn isotopes112-124Sn have been performed using the Doppler shift attenuation technique. For the isotopes112Sn,114Sn and116Sn the E2 transition strengths deduced from the measured lifetimes are in disagreement with the previously reported values and indicate a shallow minimum at N=66. The observed deviation from a maximum at mid-shell is attributed to the obstructive effect of the s1/2 neutron orbital in generating collectivity when near the Fermi level.
dc.publisherElsevier
dc.rightsAuthor/s retain copyright
dc.sourcePhysics Letters B
dc.subjectKeywords: Doppler shift attenuation technique; Lifetimes; Sn isotopes
dc.titleEvidence for reduced collectivity around the neutron mid-shell in the stable even-mass Sn isotopes from new lifetime measurements
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume695
dc.date.issued2011
local.identifier.absfor020202 - Nuclear Physics
local.identifier.ariespublicationf2965xPUB1090
local.type.statusPublished Version
local.contributor.affiliationJungclaus, A., Instituto de Estructura de la Materia, CSIC
local.contributor.affiliationWalker, J., Instituto de Estructura de la Materia, CSIC
local.contributor.affiliationLeske, J., Technische Universitat Darmstadt
local.contributor.affiliationSpeidel, K.-H., University of Bonn
local.contributor.affiliationStuchbery, Andrew , College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationEast, Michael , College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationBoutachkov, P., Gesellschaft fur Schwerionenforschung (GSI)
local.contributor.affiliationCederkall, J., Lund University
local.contributor.affiliationDoornenbal, P., RIKEN
local.contributor.affiliationEgido, J.L., Universidad Autonoma de Madrid
local.contributor.affiliationEkstrom, A., Lund University
local.contributor.affiliationGerl, J, Gesellschaft fur Schwerionenforschung
local.contributor.affiliationGernhauser, R., Technische Universitat Munchen
local.contributor.affiliationGoel, N., Gesellschaft fur Schwerionenforschung (GSI)
local.contributor.affiliationGorska, M, Gesellschaft fur Schwerionenforschung
local.contributor.affiliationKojouharov, I, Gesellschaft fur Schwerionenforschung
local.contributor.affiliationMaier-Komor, P, Munich University of Technology
local.contributor.affiliationModamio, V., Instituto de Estructura de la Materia, CSIC
local.contributor.affiliationNaqvi, F., Technische Universitat Munchen
local.contributor.affiliationPietralla, N., Technische Universitat Darmstadt
local.contributor.affiliationPietri, S., University of Surrey
local.contributor.affiliationProkopowicz, W., Gesellschaft fur Schwerionenforschung (GSI)
local.contributor.affiliationSchaffner, H., Gesellschaft fur Schwerionenforschung (GSI)
local.contributor.affiliationSchwengner, R., Institut fur Strahlenphysik
local.contributor.affiliationWollersheim, H.J., Gesellschaft fur Schwerionenforschung
local.bibliographicCitation.issue1-4
local.bibliographicCitation.startpage110
local.bibliographicCitation.lastpage114
local.identifier.doi10.1016/j.physletb.2010.11.012
dc.date.updated2016-02-24T08:09:00Z
local.identifier.scopusID2-s2.0-78650306399
local.identifier.thomsonID000286708700020
dcterms.accessRightsOpen Access
CollectionsANU Research Publications

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