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Simultaneous deorientation and lifetime measurement in 98 Ru using the recoil distance Doppler shift method in inverse Coulomb excitation

Radeck, D.; Werner, V.; Ilie, G.; Cooper, N.; Anagnostatou, V.; Ahn, T.; Bettermann, L.; Casperson, R.J.; Chevrier, R.; Heinz, A.; Williams, Elizabeth

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We measured the lifetimes of the 21,2+ and 41+ states in 98Ru in order to reduce their uncertainties and resolve the discrepancies in the literature for the lifetime of the 41+ state. Coulomb excitation in inverse kinematics was used to populate excited states in 98Ru, and the recoil distance doppler shift (RDDS) method was employed using the nNew Yale plunger device (NYPD). This technique combined with inverse Coulomb excitation requires several corrections due to relativistic and...[Show more]

dc.contributor.authorRadeck, D.
dc.contributor.authorWerner, V.
dc.contributor.authorIlie, G.
dc.contributor.authorCooper, N.
dc.contributor.authorAnagnostatou, V.
dc.contributor.authorAhn, T.
dc.contributor.authorBettermann, L.
dc.contributor.authorCasperson, R.J.
dc.contributor.authorChevrier, R.
dc.contributor.authorHeinz, A.
dc.contributor.authorWilliams, Elizabeth
dc.date.accessioned2015-12-10T22:58:24Z
dc.identifier.issn0556-2813
dc.identifier.urihttp://hdl.handle.net/1885/60835
dc.description.abstractWe measured the lifetimes of the 21,2+ and 41+ states in 98Ru in order to reduce their uncertainties and resolve the discrepancies in the literature for the lifetime of the 41+ state. Coulomb excitation in inverse kinematics was used to populate excited states in 98Ru, and the recoil distance doppler shift (RDDS) method was employed using the nNew Yale plunger device (NYPD). This technique combined with inverse Coulomb excitation requires several corrections due to relativistic and deorientation effects but yields high precision lifetimes. The determined B 4/2=B(41+?21+)/B(21+?01+)=1. 86(16) agrees well with the vibrational limit. In order to analyze the data, a new method for the deorientation correction of RDDS data was developed using the perturbation of experimental angular correlations. The simultaneous measurement of deorientation and lifetime of a given state and its application are discussed. The method is suitable for radioactive beam experiments. � 2012 American Physical Society.
dc.publisherAmerican Physical Society
dc.rightsAuthor/s retain copyright
dc.sourcePhysical Review C: Nuclear Physics
dc.titleSimultaneous deorientation and lifetime measurement in 98 Ru using the recoil distance Doppler shift method in inverse Coulomb excitation
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume85
dc.date.issued2012
local.identifier.absfor020202 - Nuclear Physics
local.identifier.ariespublicationu4155331xPUB567
local.type.statusPublished Version
local.contributor.affiliationRadeck, D., Yale University
local.contributor.affiliationWerner, V., Yale University
local.contributor.affiliationIlie, G., Yale University
local.contributor.affiliationCooper, N., Yale University
local.contributor.affiliationAnagnostatou, V., Yale University
local.contributor.affiliationAhn, T., Yale University
local.contributor.affiliationBettermann, L., Yale University
local.contributor.affiliationCasperson, R.J., Yale University
local.contributor.affiliationChevrier, R., Yale University
local.contributor.affiliationHeinz, A., Yale University
local.contributor.affiliationWilliams, Elizabeth, College of Physical and Mathematical Sciences, ANU
local.bibliographicCitation.issue1
local.bibliographicCitation.startpage1
local.bibliographicCitation.lastpage10
local.identifier.doi10.1103/PhysRevC.85.014301
dc.date.updated2015-12-10T08:06:14Z
local.identifier.scopusID2-s2.0-84862937175
dcterms.accessRightsOpen Access
CollectionsANU Research Publications

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