First Glimpse of the N = 82 Shell Closure below Z = 50 from Masses of Neutron-Rich Cadmium Isotopes and Isomers

First Glimpse of the N = 82 Shell Closure below Z = 50 from Masses of Neutron-Rich Cadmium Isotopes and Isomers. Manea, V.; Karthein, J.; Atanasov, D.; Bender, M.; Blaum, K.; Cocolios, T., E.; Eliseev, S.; Herlert, A.; Holt, J., D.; Huang, W., J.; Litvinov, Y., A.; Lunney, D.; Menéndez, J.; Mougeot, M.; Neidherr, D.; Schweikhard, L.; Schwenk, A.; Simonis, J.; Welker, A.; Wienholtz, F.; and Zuber, K. Physical Review Letters, 124(9):092502, 3, 2020.

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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.

@article{
 title = {First Glimpse of the N = 82 Shell Closure below Z = 50 from Masses of Neutron-Rich Cadmium Isotopes and Isomers},
 type = {article},
 year = {2020},
 identifiers = {[object Object]},
 pages = {092502},
 volume = {124},
 websites = {http://arxiv.org/abs/2001.05075%0Ahttp://dx.doi.org/10.1103/PhysRevLett.124.092502,https://link.aps.org/doi/10.1103/PhysRevLett.124.092502},
 month = {3},
 day = {5},
 id = {3a0d6e6f-7d1d-3336-b14a-aa094d1fe1d7},
 created = {2020-03-30T17:06:59.381Z},
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 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.},
 bibtype = {article},
 author = {Manea, V. and Karthein, J. and Atanasov, D. and Bender, M. and Blaum, K. and Cocolios, T. E. and Eliseev, S. and Herlert, A. and Holt, J. D. and Huang, W. J. and Litvinov, Yu. A. and Lunney, D. and Menéndez, J. and Mougeot, M. and Neidherr, D. and Schweikhard, L. and Schwenk, A. and Simonis, J. and Welker, A. and Wienholtz, F. and Zuber, K.},
 journal = {Physical Review Letters},
 number = {9}
}

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