Maqola

Identification of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>K</mml:mi></mml:mrow><mml:mrow><mml:mi>π</mml:mi></mml:mrow></mml:msup></mml:mrow><mml:mrow><mml:msup><mml:mrow><mml:mo>=</mml:mo><mml:mn>8</mml:mn><mml:mn/></mml:mrow><mml:mrow><mml:mi>−</mml:mi></mml:mrow></mml:msup></mml:mrow></mml:math>rotational band in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow/><mml:mrow><mml:mn>138</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mi mathvariant="normal">Gd</mml:mi></mml:math>

D. M. CullenOliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool L69 7ZE, United KingdomN. AmzalOliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool L69 7ZE, United KingdomA. J. BostonOliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool L69 7ZE, United KingdomP. A. ButlerOliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool L69 7ZE, United KingdomA. KeenanOliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool L69 7ZE, United KingdomE. S. PaulOliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool L69 7ZE, United KingdomH. C. ScraggsOliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool L69 7ZE, United KingdomA. M. BruceOliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool L69 7ZE, United KingdomC. M. ParryOliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool L69 7ZE, United KingdomJ. F. C. CocksOliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool L69 7ZE, United KingdomK. HelariuttaOliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool L69 7ZE, United KingdomPeter G. JonesOliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool L69 7ZE, United KingdomR. JulinOliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool L69 7ZE, United KingdomS. JuutinenOliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool L69 7ZE, United KingdomH. KankaanpääOliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool L69 7ZE, United KingdomH. KettunenOliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool L69 7ZE, United KingdomP. KuusiniemiOliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool L69 7ZE, United KingdomM. LeinoOliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool L69 7ZE, United KingdomM. MuikkuOliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool L69 7ZE, United KingdomA. SaveliusOliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool L69 7ZE, United Kingdom

1998lv

ABI

Annotatsiya

A ${K}^{\ensuremath{\pi}}{=8}^{\ensuremath{-}}$ collective rotational band has been established upon the 6 $\ensuremath{\mu}$s isomeric state in the very neutron-deficient nucleus ${}^{138}\mathrm{Gd}.$ The band was observed using a technique involving the correlation of $\ensuremath{\gamma}$-ray transitions across the isomeric state. The single-particle configuration of the isomer has been deduced from the $\ensuremath{\Delta}I=2$ to $\ensuremath{\Delta}I=1$ intensity branching ratios. In addition, a series of other $\ensuremath{\gamma}$-ray transitions were observed which are reasoned to be part of a higher-lying four quasiparticle structure which decays through the ${K}^{\ensuremath{\pi}}{=8}^{\ensuremath{-}}$ isomeric state. The properties of the ${K}^{\ensuremath{\pi}}{=8}^{\ensuremath{-}}$ band are discussed in relation to the systematic properties of ${K}^{\ensuremath{\pi}}{=8}^{\ensuremath{-}}$ bands in the neighboring $N=74$ isotones.

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Identifikatorlar

DOI: 10.1103/physrevc.58.846

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