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

关键词：

D O I：

暂无

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.

引用

页码：503 / 507

页数：5

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