Fission barriers of superheavy nuclei

被引：221
|
作者：
Itkis, MG [1 ]
Oganessian, YT [1 ]
Zagrebaev, VI [1 ]
机构：
[1] JINR, Flerov Lab Nucl React, Dubna, Moscow Region, Russia
来源：
PHYSICAL REVIEW C | 2002年 / 65卷 / 04期
关键词：
D O I：
10.1103/PhysRevC.65.044602
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：
An analysis of the available experimental data on the fusion and fission of the nuclei of (286)112, (292)114, and (296)116, produced in the reactions Ca-48+U-238, Ca-48+Pu-244, and Ca-48+Cm-248, as well as experimental data on the survival probability of those nuclei in evaporation channels with three- and four-neutron emission, enables the quite reliable conclusion that the fission barriers of those nuclei are really quite high, which results in their relatively high stability. The lower limits that we obtained for the fission barrier heights of (283-286)112, (288-292)114, and (292-296)116 nuclei are 5.5, 6.7, and 6.4 MeV, respectively.
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页数：7
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