6533b861fe1ef96bd12c5619

RESEARCH PRODUCT

Beta decay of 108Mo and of neighbouring even Mo-isotopes

K. J. EskolaJ.m. ParmonenMatti LeinoAri JokinenJuha ÄYstöHeikki PenttiläP.p. JauhoT. Enqvist

subject

PhysicsNuclear and High Energy PhysicsDecay scheme010308 nuclear & particles physicsBranching fractionComputer Science::Digital Libraries7. Clean energy01 natural sciencesBeta-decay stable isobarsNuclear physicsInternal conversionDecay energyDouble beta decay0103 physical sciencesHigh Energy Physics::ExperimentAtomic physics010306 general physicsRadioactive decayDecay correct

description

Abstract A combination of the proton-induced fission of 238 U and the on-line mass separation based on the ion-guide technique has been applied in the study of neutron-rich Mo-isotopes. The decays of 106,108 Mo have been studied by using gamma-, beta-, X-ray and conversion-electron spectroscopy. The decay scheme of 106 Mo has been revised and a beta-decay half-life of 8.73(12) s has been measured for this nucleus. A beta-decay half-life of 1.09(2) s and a decay energy of 5120(40) keV have been measured for 108 Mo. The decay scheme of 108 Mo has been constructed and altogether 29 new transitions have been placed in the decay scheme. The beta-decay strengths of 102,104,106,108 Mo have been deduced from the experimental data and are compared with the Gamow-Teller strength obtained from a macroscopic-microscopic calculation. The role of the asymptotic quantum numbers in the context of the allowed beta decay is discussed. Additionally, the experimental half-lives and the decay energies are compared to the recent half-life and atomic-mass predictions.

https://doi.org/10.1016/0375-9474(94)00524-q