6533b7d6fe1ef96bd1265cf6
RESEARCH PRODUCT
Mass spectrometry and decay spectroscopy of isomers across the Z=82 shell closure
Magda KowalskaFrank WienholtzChristopher BorgmannD. LunneyE. Minaya RamirezKlaus BlaumJ. StanjaJ. AgramuntThomas Elias CocoliosThomas Elias CocoliosD. NeidherrL. M. FraileM. BreitenfeldtRobert WolfS. NaimiMarco RosenbuschKai ZuberVladimir ManeaChristine BöhmD. BeckGary SimpsonAlexander HerlertFrank HerfurthAlejandro AlgoraAlejandro AlgoraLutz SchweikhardSusanne Kreimsubject
PhysicsNuclear and High Energy Physics[PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th]010308 nuclear & particles physicsClosure (topology)Shell (structure)ISOLTRAPMass spectrometry01 natural sciencesIon trappingISOLTRAPPenning ion trapTheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY0103 physical sciencesisomersddc:530Atomic physicsNuclear Experiment010306 general physicsSpectroscopyZ=82mass spectrometrydescription
Recent results from a measurement campaign studying the isomerism in neutron-deficient Tl isotopes are presented. The measurements make use of a nuclear spectroscopy setup coupled to the high-resolution Penning-trap mass spectrometer ISOLTRAP at CERN's radioactive ion-beam facility ISOLDE. The mass values of 190,194Tl are improved and a mass-spin-state assignment is carried out. An additional mass measurement of the grandparent nuclide 198At allows the deduction of the spin-state ordering in 190Tl. As a result, the excitation energies of the isomers in both Tl isotopes are determined for the first time to Eex(194Tl)=260(15) keV and E ex(190Tl)=89(12) keV. Furthermore, this allows anchoring of the ground-state and isomer masses of 194Bi, 202Fr, and 206Ac, which are linked by two independent α-decay chains. © 2013 American Physical Society. ispartof: Physical Review C, Nuclear Physics vol:88 issue:5 status: published
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-11-06 |