QUADRUPOLE-MOMENTS OF HIGH-SPIN ISOMERS IN FR-213, FR-212, AND FR-211

被引：23

作者：

HARDEMAN, F ^{[1
]}

NEYENS, G ^{[1
]}

SCHEVENEELS, G ^{[1
]}

NOUWEN, R ^{[1
]}

SHEEREN, G ^{[1
]}

VANDENBERGH, M ^{[1
]}

COUSSEMENT, R ^{[1
]}

BYRNE, AP ^{[1
]}

MUSSELER, R ^{[1
]}

HUBEL, H ^{[1
]}

BALDSIEFEN, G ^{[1
]}

机构：

[1] UNIV BONN, INST STRAHLEN & KERNPHYS, W-5300 BONN 1, GERMANY

来源：

PHYSICAL REVIEW C | 1991年 / 43卷 / 02期

关键词：

D O I：

10.1103/PhysRevC.43.514

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 level mixing spectroscopy method has been applied to measure the static quadrupole moments of six isomeric states in Fr-213, Fr-212, and Fr-211 (Z = 87). For isomers with the proton configuration pi-h9(4)/2i13/2 a large increase of the quadrupole moment was observed with the removal of neutrons from the closed N = 126 core: Q(29/2+,Fr-213) = -70(7) e fm2, Q(15-,Fr-212) = -80(12) e fm2, and Q(29/2+,Fr-211) = -107(18) e fm2. Quadrupole moments for very high spin states were also measured: Q(65/2-,Fr-213) = -219(53) e fm2, Q(27-,Fr-212) = -152(31) e fm2, and Q(45/2-,Fr-211) = -198(56) e fm2. The observed values are in good agreement with shell-model calculations, but are lower than that predicted using the deformed-independent particle model. The implantation behavior of Fr in a Tl host is also discussed.

引用

页码：514 / 520

页数：7

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