6533b829fe1ef96bd128a378

RESEARCH PRODUCT

Precision mass measurements of neutron-rich nuclei between N=50 and 82

Juha ÄYstö

subject

Neutron-rich nucleiHistoryFissionPenning trapBinding energyNuclear TheoryFOS: Physical sciences01 natural sciences114 Physical sciencesEducationNuclear physics0103 physical sciencesNeutronNuclideNuclear structureHigh energy physicsNuclear Experiment (nucl-ex)010306 general physicsNuclear ExperimentMass measurementsNuclear ExperimentPhysics010308 nuclear & particles physicsNuclear structureOdd-even staggeringPenning trapComputer Science ApplicationsShell gap Binding energyPairingIsotopes Neutron beams

description

Our knowledge of binding energies of neutron-rich nuclei has experienced a major revision during the last five years due to the introduction of Penning-trap based mass measurements. New mass values for nearly 300 nuclides produced in fission with uncertainties of 10 keV or less have become available. The data produced at three Penning trap facilities at Jyvaskyla, CERN-ISOLDE and Argonne cover all isotopic chains from Ni to Pr, except iodine. In this talk some of this data is reviewed and applied using the mass differentials such as two-neutron binding energy and odd-even staggering to probe their sensitivity on changes in nuclear structure and on the strength of the N=82 shell gap and associated pairing effects.

https://dx.doi.org/10.48550/arxiv.1210.6567