6533b834fe1ef96bd129deae
RESEARCH PRODUCT
Combined high-resolution laser spectroscopy and nuclear decay spectroscopy for the study of the low-lying states inFr206,At202, andBi198
R. P. De GrooteT. Day GoodacreT. Day GoodacreS. FranchooXiaofei YangR. F. Garcia RuizV. N. FedosseevGerda NeyensG. J. Farooq-smithG. J. Farooq-smithB. A. MarshH. Henry StrokeRuohong LiShane WilkinsRalf Erik RosselRalf Erik RosselSebastian RotheKieran FlanaganThomas Elias CocoliosThomas Elias CocoliosI. BudinčevićKara Marie LynchKara Marie LynchH. HeylenMark BissellMark BissellKlaus WendtJ. Billowessubject
PhysicsIsotope010308 nuclear & particles physicsNuclear stateHigh resolutionchemistry.chemical_element01 natural sciences7. Clean energyFranciumNuclear physicschemistry0103 physical sciencesResonance ionizationPhysics::Atomic and Molecular ClustersPhysics::Atomic PhysicsAtomic physicsNuclear Experiment010306 general physicsSpectroscopyHyperfine structureRadioactive decaydescription
High-resolution laser spectroscopy was performed on $^{206}\mathrm{Fr}$ with the collinear resonance ionization spectroscopy (CRIS) experiment at CERN-ISOLDE. The hyperfine structure and isotope shift of the ground, first isomeric and second isomeric states were measured. The hyperfine components were unambiguously assigned to each nuclear state by means of laser-assisted nuclear decay spectroscopy. The branching ratios in the $\ensuremath{\alpha}$ decay of $^{206}\mathrm{Fr}$ and $^{202}\mathrm{At}$ were also measured for the first time with isomerically purified beams. The extracted hindrance factors allow determination of the spin of the ground, first isomeric, and second isomeric states in $^{202}\mathrm{At}$ and $^{198}\mathrm{Bi}$.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-01-27 | Physical Review C |