2020 Impact factor 3.043
Hadrons and Nuclei
Eur. Phys. J. A 1, 1-2

Short note

Low-lying isomeric states in 169Ta

Y.H. Zhang - Q.Z. Zhao - S.F. Zhu - H.S. Xu - X.H. Zhou - Y.X. Guo - X.G. Lei - J. Lu - Q.B. Gou - H.J. Jin - Z. Liu - Y.X. Luo - X.F. Sun - Y.T. Zhu

Institute of Modern Physics, the Chinese Academy of Sciences, Lanzhou 730000, P. R. China

Received: 14 July 1997

Abstract
Two low-lying isomeric states in 169Ta have been identified via 159Tb(16O,6n$\gamma $)169Ta reaction. Their half-lives are measured to be $28\pm 5$ ns for the 9/2- level and $17\pm 4 $ ns for the 5/2- level by using the delayed $\gamma $-$\gamma $coincidence method. These two isomeric states are considered to be the bandheads with 9/2-[514] and 1/2-[541] configurations respectively.

PACS
21.10.Tg Livetimes - 21.10.Pc Single particle levels and strength functions - 23.20.Lv Gamma transitions and level energies - 27.70.+q $150 \leq A \leq 189$


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