High-spin yrast isomer in 211Rn and 212Rn with enhanced E3 decays

G. D. Dracoulis*, P. M. Davidson, A. P. Byrne, B. Fabricius, T. Kibédi, A. M. Baxter, A. E. Stuchbery, A. R. Poletti, K. J. Schiffer

*Corresponding author for this work

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Abstract

New isomeric states with Jπ = 69/2+, τm = 13(1) ns in 211Rn and Jπ = 33-, πm = 7(1) ns in 212Rn have been identified. They decay by enhanced E3 transitions with strengths of 33(3) and 43(6) single particle units to the known 63/2- and 30+ isomers in 211Rn and 212Rn, respectively. The excitation energies and transition strengths agree well with predictions of the multiparticle, octupole-vibration coupled model.

Original languageEnglish
Pages (from-to)31-35
Number of pages5
JournalPhysics Letters B
Volume246
Issue number1-2
DOIs
Publication statusPublished - Aug 1990

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