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RESEARCH PRODUCT

High-spin states in205Rn:A new shears band structure?

H. KankaanpaeaeR. F. CastenG. Cata DanilPasi KuusiniemiJ. R. NovakJ. R. CooperT. SocciR. JulinR. KrueckenPeter B. JonesC. W. BeausangJ.t. ThomasN. AmzalN. V. ZamfirF. HannachiS. JuutinenM. MuikkuPaul GreenleesM. LeinoJian ZhangA. SaveliusBenyuan LiuK. HelariuttaJ. F. C. CocksS. FrauendorfHeikki Kettunen

subject

PhysicsNuclear reactionNuclear and High Energy PhysicsSpin states010308 nuclear & particles physicsHadronElementary particleFermion01 natural sciencesBaryon0103 physical sciencesAtomic physics010306 general physicsNucleonElectronic band structure

description

The high-spin structure of {sup 205}Rn has been investigated for the first time following the {sup 170}Er({sup 40}Ar,5n) and {sup 197}Au({sup 14}N,6n) reactions at beam energies of 183 MeV and 90{endash}110 MeV, respectively, using the Jurosphere and YRAST Ball arrays. Two new cascades have been identified which dominate the high-spin decay. One of these, consisting of ten stretched M1 transitions with unobserved E2 crossover transitions, is interpreted as a shears structure based on the {nu}i{sub 13/2}{sup {minus}1}{circle_times}{pi}i{sub 13/2}{sup 2} (or {nu}i{sub 13/2}{sup {minus}1}{circle_times}{pi}h{sub 9/2}i{sub 13/2}) configuration. {copyright} {ital 1999} {ital The American Physical Society}

https://doi.org/10.1103/physrevc.59.r2989