6533b853fe1ef96bd12ad616

RESEARCH PRODUCT

Nuclear charge radii of potassium isotopes beyond N=28

Klaus BlaumMagda KowalskaJ. PapugaWilfried NörtershäuserWilfried NörtershäuserMustafa RajabaliS. GorielyR. M. Sanchez AlarconH. H. StrokeDeyan T. YordanovDeyan T. YordanovMark BissellM. De RydtGerda NeyensR. F. Garcia RuizH. HeylenK. KreimRainer NeugartRainer Neugart

subject

Mean squareNuclear and High Energy PhysicsPotassiumCollinear laser spectroscopyNuclear TheoryShell (structure)FOS: Physical scienceschemistry.chemical_elementEffective nuclear chargeNuclear Physics - ExperimentNuclear Experiment (nucl-ex)SpectroscopyNuclear ExperimentNuclear ExperimentPhysicsIsotopeCharge (physics)Physique atomique et nucléaireIsotope shiftchemistryIsotopes of potassiumPotassiumPhysics::Accelerator PhysicsAtomic physicsPräzisionsexperimente - Abteilung BlaumNuclear charge radius

description

We report on the measurement of optical isotope shifts for 38, 39, 42, 44, 46–51 K relative to 47 K from which changes in the nuclear mean square charge radii across the N = 28 shell closure are deduced. The investigation was carried out by bunched-beam collinear laser spectroscopy at the CERN-ISOLDE radioactive ion-beam facility. Mean square charge radii are now known from 37K to 51K, covering all ν f7/2-shell as well as all νp3/2-shell nuclei. These measurements, in conjunction with those of Ca, Cr, Mn and Fe, provide a first insight into the Z dependence of the evolution of nuclear size above the shell closure at N = 28

yearjournalcountryeditionlanguage
2014-02-14
10.1016/j.physletb.2014.02.012http://arxiv.org/abs/1310.5171