Near-yrast, medium-spin structure of the 107Tc nucleus

被引：20
|
作者：
Urban, W
Rzaca-Urban, T
Durell, JL
Smith, AG
Ahmad, I
机构：
[1] Univ Warsaw, Fac Phys, PL-00681 Warsaw, Poland
[2] Univ Manchester, Dept Phys & Astron, Manchester M13 9PL, Lancs, England
[3] Argonne Natl Lab, Argonne, IL 60439 USA
来源：
PHYSICAL REVIEW C | 2004年 / 70卷 / 05期
关键词：
D O I：
10.1103/PhysRevC.70.057308
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：
We have reinvestigated the structure of the Tc-107 nucleus reported in other works. Excited states in Tc-107, populated in spontaneous fission of Cm-248, were studied by means of prompt-gamma spectroscopy, using the EUROGAM2 multidetector array. Parity assignments to the 45.6 and 65.6 keV levels were changed, based on conversion coefficient measurements. A new band found on top of the 45.6 keV level corresponds to the pi5/2(-)[303] configuration. The positive-parity, yrast band in Tc-107 is built on top of the 65.6 keV level and corresponds to the pi5/2(+)[422] configuration. The configurations observed in Tc-107 agree well with the scheme of single-proton excitations calculated for this nucleus.
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页码：057308 / 1
页数：4
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