2019 Impact factor 2.176
Hadrons and Nuclei
Eur. Phys. J. A 9, 157-160

Short note

Study of high-spin states in 143Pm

J.J. He1 - Y.H. Zhang1 - X.H. Zhou1 - Y.X. Guo1 - X.G. Lei 1 - W.X. Huang1 - X.C. Feng1 - S.Q. Zhang1 - X. Xu1 - Z. Liu1 - Y.X. Luo1 - S.X. Wen2 - X.G. Wu2 - G.J. Yuan2

1 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, P.R. China
2 China Institute of Atomic Energy, Beijing 102413, P.R. China

Received: 10 July 2000 / Revised version: 27 September 2000
Communicated by J. Äystö

Abstract
High-spin states in 143Pm have been investigated via the 128Te(<tex2htmlcommentmark> 19F,4n$\gamma $)143Pm reaction using techniques of in-beam $\gamma $ -spectroscopy. $\gamma $-ray singles, $\gamma $-$\gamma $coincidences, $\gamma $-ray anisotropies and DCO ratios have been measured. Based on these measurements, the level scheme of 143Pm has been extended up to an excitation energy of 10535.4 keV, including 48 new $\gamma $-rays deexciting 28 new levels. The yrast levels in 143Pm can be understood qualitatively in the framework of a weak-coupling model.

PACS
23.20.Lv Gamma transitions and level energies - 27.60.+j $90\leq A \leq 149$


Copyright Società Italiana di Fisica, Springer-Verlag 2000