Precision mass measurements of Cd125-127 isotopes and isomers approaching the N=82 closed shell
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| Authors: | Lascar, D; Klawitter, R; Babcock, C; Leistenschneider, E; Stroberg, SR; Barquest, BR; Finlay, A; Foster, M; Gallant, AT; Hunt, P; Kelly, J; Kootte, B; Lan, Y; Paul, SF; Phan, ML; Reiter, MP; Schultz, B; Short, D; Simonis, J; Andreoiu, C; Brodeur, M; Dillmann, I; Gwinner, G; Holt, JD; Kwiatkowski, AA; Leach, KG; Dilling, J |
| Year: | 2017 |
| Journal: | Phys. Rev. C 96 Article Link (DOI) |
| Title: | Precision mass measurements of Cd125-127 isotopes and isomers approaching the N=82 closed shell |
| Abstract: | We present the results of precision mass measurements of neutron-rich cadmium isotopes. These nuclei approach the N = 82 closed neutron shell and are important to nuclear structure as they lie near doubly magic Sn-132 on the chart of nuclides. Of particular note is the clear identification of the ground-state mass in Cd-127 along with the isomeric state. We show that the ground state identified in a previous mass measurement which dominates the mass value in the Atomic Mass Evaluation is an isomeric state. In addition to Cd-127/m, we present other cadmium masses measured (Cd-125/m and Cd-126) in a recent TITAN experiment at TRIUMF. Finally, we compare our measurements to new ab initio shell-model calculations and comment on the state of the field in the N = 82 region. |
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