6533b858fe1ef96bd12b5b9c
RESEARCH PRODUCT
High-spin states beyond the proton drip-line: Quasiparticle alignments in 113 Cs
S. V. RigbyB. M. McguirkPanu RahkilaHeikki KettunenR. WadsworthA.-p. LeppänenP. T. WadyPaivi NieminenTuomas GrahnD. M. CullenJuha UusitaloMarkus NymanS. J. FreemanRobert PageSarah EeckhaudtCatherine ScholeyE. S. PaulJ. F. SmithSakari JuutinenJanne PakarinenRauno JulinBaharak HadiniaIain DarbyMatti LeinoPaul GreenleesPeter M. Jonessubject
PhysicsNuclear and High Energy PhysicsProtonSpin statesSpinsta114Proton decayNuclear Theoryrecoil decay taggingProton decayQuasiparticle alignmentsgamma ray spectroscopylcsh:QC1-999High-spin statesExcited stateQuasiparticleRecoil-decay taggingGamma spectroscopyGamma-ray spectroscopyAtomic physicsNuclear ExperimentExcitationlcsh:Physicsdescription
Abstract Excited states have been studied in the deformed proton emitter 113Cs. Gamma-ray transitions have been unambiguously assigned to 113Cs by correlation with its characteristic proton decay, using the method of recoil-decay tagging. Two previously identified rotational bands have been observed and extended to tentative spins of 45/2 and 51 / 2 ħ , with excitation energies over 8 MeV above the lowest state. These are the highest angular momenta and excitation energies observed to date in any nucleus beyond the proton drip-line. Transitions in the bands have been rearranged compared to previous work. A study of aligned angular momenta, in comparison to the predictions of Woods–Saxon cranking calculations, is consistent with the most intense band being based on the π g 7 / 2 [ 422 ] 3 / 2 + configuration, which would contradict the earlier π h 11 / 2 assignment, and with the second band being based on the π d 5 / 2 [ 420 ] 1 / 2 + configuration. The data suggest that the band based upon the π h 11 / 2 configuration is not observed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-11-26 | Physics Letters B |