gFactors of High-Spin Yrast Traps inGd146,147

Abstract

Pulsed beams of ${}_{}{}^{28}{}_{}{}^{}\mathrm{Si}$ and ${}_{}{}^4{}_{}{}^{}\mathrm{He}$ were used to determine $g$ factors of eight isomeric states in ${}_{}{}^{144,146,147,148}{}_{}{}^{}\mathrm{Gd}$ by the time-differential spin-rotation method. The results show that proton and neutron configurations contribute about equally to the generation of angular momenta of two high-spin yrast isomers in ${}_{}{}^{146,147}{}_{}{}^{}\mathrm{Gd}$ ($I\sim 19 \mathrm{and} \frac{49}{2}$) whose detailed quasiparticle structure is suggested.