Eur. Phys. J. A (2004) 21: 7-10
https://doi.org/10.1140/epja/i2004-10038-4

Letter

The beta-decay scheme of ²³²Fr and the K = 0 ground-state band in ²³²Ra

¹ ISOLDE, CERN,, CH-1211, Genève 23, Switzerland
² Nuclear Science Division,, Lawrence Berkeley National Laboratory,, CA 94720,, Berkeley,, USA
³ Department of Physics,, University of Jyväskylä,, P.O. Box 35,, FIN-40014, Finland
⁴ Helsinki Institute of Physics,, University of Helsinki,, P.O. Box 64,, FIN-00014, Finland

^* e-mail: KPerajarvi@lbl.gov

Abstract

The beta-decay of ²³²Fr to excited states in ²³²Ra has been studied using gamma-gamma coincidence detection combined with the isotope separator on-line technique at the ISOLDE PSB facility at CERN. Earlier findings are confirmed and three new gamma lines are reported. In addition to the beta-decay characteristics of ²³²Fr, the K = 0 ground-state band in ²³²Ra is identified. A yield survey of neutron-rich Fr isotopes, important also for the EURISOL project, is incorporated.