6533b855fe1ef96bd12b0b86
RESEARCH PRODUCT
High-spin states beyond the proton drip-line: Quasiparticle alignments in Cs-113
P.t. WadyJ.f. SmithB. HadiniaD.m. CullenS.j. FreemanI.g. DarbySarah EeckhaudtTuomas GrahnPaul GreenleesPeter JonesRauno JulinSakari JuutinenHeikki KettunenMatti LeinoAri-pekka LeppänenB.m. McguirkPäivi NieminenMarkus NymanR.d. PageJanne PakarinenE.s. PaulPanu RahkilaS.v. RigbyCatherine ScholeyJuha UusitaloR. Wadsworthsubject
proton decayhigh-spin statesNuclear Theoryrecoil decay taggingNuclear Experimentquasiparticle alignmentsgamma ray spectroscopydescription
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 h¯, 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 g7/2[422]3/2+ configuration, which would contradict the earlier πh11/2 assignment, and with the second band being based on the πd5/2[420]1/2+ configuration. The data suggest that the band based upon the πh11/2 configuration is not observed. peerReviewed
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-01-01 |