Study of high-spin states in ${^{143}Pm}$

J.J. He; Y.H. Zhang; X.H. Zhou; Y.X. Guo; X.G. Lei; W.X. Huang; X.C. Feng; S.Q. Zhang; X. Xu; Z. Liu; Y.X. Luo; S.X. Wen; X.G. Wu; G.J. Yuan

doi:doi:10.1007/s100500070031

EPJ

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(<tex2html_comment_mark> 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 $90\leq A \leq 149$

Winter Workshop on Complex Systems
25-30 January 2026
Santuari de Lluc, Mallorca, Spain

EPJ

Study of high-spin states in 143Pm

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Study of high-spin states in ¹⁴³Pm