Fusion-fission process of superheavy elements with fluctuation-dissipation model

被引：0
|
作者：
Aritomo, Y [1 ]
机构：
[1] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan
[2] Joint Inst Nucl Res, Flerov Lab Nucl React, Dubna 141980, Russia
来源：
PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT | 2002年 / 146期
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中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The fusion-fission process for the synthesis of superheavy elements is discussed based on fluctuation-dissipation dynamics. Recent data from Dubna on a fusion-fission cross section derived from fission experiments in the reactions Ca-48+Pb-208, Ca-48+U-238, Ca-48+Pu-244 and Ca-48+Cm-248 are analyzed using a three-dimensional Langevin calculation. We found that the quasi-fission process contributes to the yield of mass symmetric fission fragments. In superheavy mass region, the dynamical deformation of fragments is very important. The one- or two-dimensional calculation is not enough to describe the dynamics of fusion-fission process.
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页码：503 / 507
页数：5
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