| Article | |
| Report number | arXiv:2001.05075 |
| Title | First glimpse of the $N=82$ shell closure below $Z=50$ from masses of neutron-rich cadmium isotopes and isomers |
| Author(s) | Manea, V. (CERN ; Heidelberg, Max Planck Inst. ; Leuven U.) ; Karthein, J. (CERN ; Heidelberg, Max Planck Inst.) ; Atanasov, D. (Dresden, Tech. U.) ; Bender, M. (IP2I, Lyon) ; Blaum, K. (Heidelberg, Max Planck Inst.) ; Cocolios, T.E. (Leuven U.) ; Eliseev, S. (Heidelberg, Max Planck Inst.) ; Herlert, A. (FAIR, Darmstadt) ; Holt, J.D. (TRIUMF) ; Huang, W.J. (CSNSM, Orsay) ; Litvinov, Yu.A. (Darmstadt, GSI) ; Lunney, D. (CSNSM, Orsay) ; Menéndez, J. (Tokyo U., CNS ; Barcelona U.) ; Mougeot, M. (CSNSM, Orsay) ; Neidherr, D. (Darmstadt, GSI) ; Schweikhard, L. (Greifswald U.) ; Schwenk, A. (U. Mainz, PRISMA ; Darmstadt, EMMI) ; Simonis, J. (U. Mainz, PRISMA ; Dresden, Tech. U. ; Darmstadt, EMMI) ; Welker, A. (CERN ; Dresden, Tech. U.) ; Wienholtz, F. (CERN ; Greifswald U.) ; Zuber, K. (Dresden, Tech. U.) |
| Publication | 2020-03-05 |
| Imprint | 2020-01-14 |
| Number of pages | 6 |
| Note | 7 pages, 5 figures; reference added, minor editorial corrections |
| In: | Phys. Rev. Lett. 124 (2020) 092502 |
| DOI | 10.1103/PhysRevLett.124.092502 |
| Subject category | nucl-th ; Nuclear Physics - Theory ; nucl-ex ; Nuclear Physics - Experiment |
| Accelerator/Facility, Experiment | CERN ISOLDE |
| Abstract | We probe the $N=82$ nuclear shell closure by mass measurements of neutron-rich cadmium isotopes with the ISOLTRAP spectrometer at ISOLDE-CERN. The new mass of $^{132}$Cd offers the first value of the $N=82$, two-neutron shell gap below $Z=50$ and confirms the phenomenon of mutually enhanced magicity at $^{132}$Sn. Using the recently implemented phase-imaging ion-cyclotron-resonance method, the ordering of the low-lying isomers in $^{129}$Cd and their energies are determined. The new experimental findings are used to test large-scale shell-model, mean-field and beyond-mean-field calculations, as well as the ab initio valence-space in-medium similarity renormalization group. |
| Copyright/License | preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © 2020-2024 Authors (License: CC-BY-4.0) |
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