β-decay study of 94Kr

Abstract

β decay of neutron-rich nuclide 94Kr was reinvestigated by means of a high resolution on-line mass separator and β−γ spectroscopy. In total 22 γ-ray transitions were assigned to the decay of 94Kr, and a new isomeric state was identified. The new information allows us to build detailed levels systematics in a chain of odd-odd rubidium isotopes and draw conclusions on nuclear structure for some of the observed states. The discussed level structure affects the evolution of β-decay half-lives for neutron-rich selenium, krypton, and strontium isotopes.