%0 Journal Article
%T Mass spectrometry and decay spectroscopy of isomers across the Z=82 shell closure
%A Stanja, J. et al
%A Agramunt, J.
%A Algora, A.
%J Physical Review C
%D 2013
%V 88
%N 5
%I Amer Physical Soc
%@ 0556-2813
%G English
%F Stanja_etal2013
%O WOS:000326602300001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1639), last updated on Thu, 05 Dec 2013 10:22:32 +0000
%X 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 Penningtrap mass spectrometer ISOLTRAP at CERN's radioactive ion-beam facility ISOLDE. The mass values of Tl-190,Tl-194 are improved and a mass-spin-state assignment is carried out. An additional mass measurement of the grandparent nuclide At-198 allows the deduction of the spin-state ordering in Tl-190. As a result, the excitation energies of the isomers in both Tl isotopes are determined for the first time to Eex(Tl-194) = 260(15) keV and E-ex(Tl-190) = 89(12) keV. Furthermore, this allows anchoring of the ground-state and isomer masses of Bi-194, Fr-202, and Ac-206, which are linked by two independent a-decay chains.
%R 10.1103/PhysRevC.88.054304
%U https://doi.org/10.1103/PhysRevC.88.054304
%P 054304-7pp