Charge radii, moments and masses of mercury isotopes across the N = 126 shell 
closure

Goodacre, T. Day; Afanasjev, A. V.; Barzakh, A. E.; Nies, L.; Marsh, B. A.; Sels, S.; Perera, U. C.; Ring, P.; Wienholtz, F.; Andreyev, A. N.; Van Duppen, P.; Althubiti, N. A.; Andel, B.; Atanasov, D.; Augusto, R. S.; Billowes, J.; Blaum, Klaus; Cocolios, T. E.; Cubiss, J. G.; Farooq-Smith, G. J.; Fedorov, D. V.; Fedosseev, V. N.; Flanagan, K. T.; Gaffney, L. P.; Ghys, L.; Gottberg, A.; Huyse, M.; Kreim, S.; Kunz, P.; Lunney, D.; Lynch, K. M.; Manea, V.; Palenzuela, Y. Martinez; Medonca, T. M.; Molkanov, P. L.; Mougeot, M.; Ramos, J. P.; Rosenbusch, M.; Rossel, R. E.; Rothe, S.; Schweikhard, L.; Seliverstov, M. D.; Spagnoletti, P.; Van Beveren, C.; Veinhard, M.; Verstraelen, E.; Welker, A.; Wendt, K.; Wolf, R. N.; Zadvornaya, A.; Zuber, K.

doi:10.1103/PhysRevC.104.054322

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Charge radii, moments and masses of mercury isotopes across the N = 126 shell closure

MPS-Authors

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Blaum, Klaus
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Manea, V.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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https://journals.aps.org/prc/pdf/10.1103/PhysRevC.104.054322
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Citation

Goodacre, T. D., Afanasjev, A. V., Barzakh, A. E., Nies, L., Marsh, B. A., Sels, S., et al. (2021). Charge radii, moments and masses of mercury isotopes across the N = 126 shell closure. Physical Review C, 104(5): 054322. doi:10.1103/PhysRevC.104.054322.

Cite as: https://hdl.handle.net/21.11116/0000-0009-8E95-F

Abstract

Combining laser spectroscopy in a Versatile Arc Discharge and Laser Ion
Source, with Penning-trap mass spectrometry at the CERN-ISOLDE facility, this
work reports on mean-square charge radii of neutron-rich mercury isotopes
across the $N = 126$ shell closure, the electromagnetic moments of $^{207}$Hg
and more precise mass values of $^{206-208}$Hg. The odd-even staggering (OES)
of the mean square charge radii and the kink at $N = 126$ are analyzed within
the framework of covariant density functional theory (CDFT), with comparisons
between different functionals to investigate the dependence of the results on
the underlying single-particle structure. The observed features are defined
predominantly in the particle-hole channel in CDFT, since both are present in
the calculations without pairing. However, the magnitude of the kink is still
affected by the occupation of the $1i_{11/2}$ and $2g_{9/2}$ orbitals with a
dependence on the relative energies as well as pairing.