States built on the 10+ isomers in 118,120,122,124Sn

被引：18
|
作者：
Fotiades, N. [1 ]
Devlin, M. [1 ]
Nelson, R. O. [1 ]
Cizewski, J. A. [2 ]
Kruecken, R. [3 ,4 ]
Clark, R. M. [5 ]
Fallon, P. [5 ]
Lee, I. Y. [5 ]
Macchiavelli, A. O. [5 ]
Younes, W. [6 ]
机构：
[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
[2] Rutgers State Univ, Dept Phys & Astron, New Brunswick, NJ 08903 USA
[3] Tech Univ Munich, Phys Dept E12, D-85748 Garching, Germany
[4] TRIUMF, Vancouver, BC V6T 2A3, Canada
[5] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA
[6] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA
来源：
PHYSICAL REVIEW C | 2011年 / 84卷 / 05期
基金：
美国国家科学基金会;
关键词：
NUCLEAR-DATA SHEETS; SN;
D O I：
10.1103/PhysRevC.84.054310
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The high-spin structure above the previously known 10(+) isomers of the Sn-118,Sn-120,Sn-122,Sn-124 isotopes was studied via prompt gamma-ray spectroscopy. All isotopes were populated as fragments following the fission of much heavier compound nuclei formed in three fusion-fission reactions. The Sn-118,Sn-120,Sn-122 isotopes were also independently populated and studied as evaporation residues in the Sn-124(n, xn gamma) reactions, with x = 3, 5, 7. Transitions above the previously known 10(+) isomers were observed for the first time and the corresponding level schemes above these isomers were established up to 6646-, 5673-, 5386-, and 5952-keV excitation energy for Sn-118,Sn-120,Sn-122,Sn-124, respectively. The experimental results are compared with predictions from shell-model calculations.
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页数：9
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