Identification of the K$^{pi}$ = 8$^{-}$ Rotational Band in $^{138}$Gd
Identification of the K$^{pi}$ = 8$^{-}$ Rotational Band in $^{138}$Gd
复制标题
识别 $^{138}$Gd 中的 K$^{pi}$ = 8$^{-}$ 旋转带
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
A. Savelius
中科院分区：
文献类型：
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作者：
D. Cullen;N. Amzal;A. Boston;P. Butler;A. Keenan;E. Paul;H. C. Scraggs;A. Bruce;C. M. Parry;J. Cocks;K. Helariutta;P. Jones;R. Julin;S. Juutinen;H. Kankaanpää;H. Kettunen;P. Kuusiniemi;M. Leino;M. Muikku;A. Savelius
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.
