New yrast excited states of the N = 84 nucleus 142Ce observed in deep inelastic reactions

被引:0
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作者
Z. Liu
Y.H. Zhang
X.H. Zhou
M.L. Liu
W.J. Luo
Q.Y. Pan
Z.G. Gan
T. Hayakawa
M. Oshima
Y. Toh
T. Shizima
Y. Hatsukawa
A. Osa
T. Ishii
M. Sugawara
机构
[1] Institute of Modern Physics,
[2] Chinese Academy of Sciences,undefined
[3] Lanzhou,undefined
[4] 730000,undefined
[5] PRC,undefined
[6] Japan Atomic Energy Research Institute,undefined
[7] Tokai,undefined
[8] Ibaraki 319-1195,undefined
[9] Japan,undefined
[10] Chiba Institute of Technology,undefined
[11] Narashino,undefined
[12] Chiba 275-0023,undefined
[13] Japan,undefined
关键词
PACS. 21.60.Cs Shell model – 23.20.Lv Gamma transitions and level energies – 27.60.+j 90 ?A? 149;
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摘要
Excited states of 142Ce, populated in deep inelastic reactions of 82Se projectiles bombarding 139La target, have been studied up to medium spins using in-beam γ spectroscopy techniques. Three new levels have been identified at 2625, 2995, 3834 keV, and assigned as 8+, 9(-) and 11(-), respectively. These new yrast states follow closely the level systematics of the even mass N = 84 isotones. Their strctures have been discussed with the help of empirical shell model calculations.
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页码:277 / 280
页数:3
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