6533b826fe1ef96bd128515f
RESEARCH PRODUCT
Charge radii, moments, and masses of mercury isotopes across the N=126 shell closure
L. NiesPeter RingT. Day GoodacreThomas Elias CocoliosRobert WolfJ. BillowesMark HuyseVladimir ManeaP. KunzLiam GaffneyKlaus BlaumP. SpagnolettiSebastian RotheKai ZuberA. E. BarzakhKara Marie LynchLutz SchweikhardA. ZadvornayaMarco RosenbuschA. GottbergV. N. FedosseevD. LunneyP. L. MolkanovS. SelsD. V. FedorovU. C. PereraFrank WienholtzKieran FlanaganM. VeinhardM. MougeotM. D. SeliverstovDinko AtanasovG. J. Farooq-smithJ. G. CubissA. WelkerC. Van BeverenSusanne KreimB. A. MarshA. V. AfanasjevY. Martinez PalenzuelaN. A. AlthubitiP. Van DuppenL. GhysE. VerstraelenR.e. RosselAndrei AndreyevKlaus WendtR. S. AugustoB. AndelJ. P. RamosT. M. Medoncasubject
Nuclear Theorynucl-thShell (structure)FOS: Physical sciences[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]Mass spectrometrynucl-ex7. Clean energy01 natural sciencesNuclear Theory (nucl-th)Atomic orbital0103 physical sciencesNuclear Physics - ExperimentNuclear Experiment (nucl-ex)010306 general physicsSpectroscopyNuclear ExperimentPhysics010308 nuclear & particles physicsCharge (physics)Ion sourceddc:3. Good healthPairingNuclear Physics - TheoryDensity functional theoryAtomic physicsPräzisionsexperimente - Abteilung Blaumdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2021-11-30 |