6533b82bfe1ef96bd128df19

RESEARCH PRODUCT

Stability and decay of nuclei at the end of the periodic system

P. MöllerJ. Rayford Nix

subject

Nuclear physicsPhysicsPeriodic systemNuclear and High Energy PhysicsBranching fractionFissionCoulombRedistribution (chemistry)Atomic physicsNuclear ExperimentPotential energySpontaneous fission

description

Abstract Recent studies of nuclear mass models show that it is essential to account for the Coulomb redistribution energy when calculating the nuclear potential energy in the heavy-element region. Results obtained by use of a mass model that includes Coulomb redistribution effects are analyzed. Q -values for α- and β-decay are calculated. Half-lives for α-decay are estimated by use of the Viola-Seaborg systematics. For EC, β + decay and β − decay, half-lives are calculated in a microsciopic QRPA model. Calculated single-particle level structures in the heavy-element region are presented. These indicate possible regions of isomers that would be unusually stable with respect to spontaneous fission and α-decay. Finally, we discuss the implications of earlier extensive work on fission properties of nuclei in this region.

https://doi.org/10.1016/0375-9474(92)90068-u