6533b85cfe1ef96bd12bc0b5
RESEARCH PRODUCT
Cu charge radii reveal a weak sub-shell effect at N=40
P. VingerhoetsGerda NeyensBradley ChealBradley ChealWilfried NörtershäuserWilfried NörtershäuserKlaus BlaumMichel GodefroidDeyan T. YordanovDeyan T. YordanovDeyan T. YordanovKieran FlanaganKieran FlanaganJ. KrämerJ. KrämerThomas CaretteMagda KowalskaMark BissellMark BissellStephan FritzscheStephan FritzscheRainer NeugartRainer NeugartJ. Billowessubject
PhysicsIon beamIsotope010308 nuclear & particles physicsModel predictionShell (structure)Charge (physics)[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciencesPhysique atomique et nucléaire0103 physical sciencesQuadrupolePhysics::Accelerator PhysicsPhysics::Atomic PhysicsPräzisionsexperimente - Abteilung BlaumAtomic physicsDeformation (engineering)010306 general physicsSpectroscopyNuclear Experimentdescription
Collinear laser spectroscopy on Cu58-75 isotopes was performed at the CERN-ISOLDE radioactive ion beam facility. In this paper we report on the isotope shifts obtained from these measurements. State-of-the-art atomic physics calculations have been undertaken in order to determine the changes in mean-square charge radii δ(r2)A,A′ from the observed isotope shifts. A local minimum is observed in these radii differences at N=40, providing evidence for a weak N=40 sub-shell effect. However, comparison of δ(r2)A,A′ with a droplet model prediction including static deformation deduced from the spectroscopic quadrupole moments, points to the persistence of correlations at N=40.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-06-17 |