Production of heavy and superheavy nuclei in massive fusion reactions

被引：52

作者：

Feng, Zhao-Qing ^{[1
]}

Jin, Gen-Ming ^{[1
]}

Li, Jun-Qing ^{[1
]}

Scheid, Werner ^{[2
]}

机构：

[1] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China

[2] Univ Giessen, Inst Theoret Phys, D-35392 Giessen, Germany

来源：

NUCLEAR PHYSICS A | 2009年 / 816卷

基金：

中国国家自然科学基金;

关键词：

DNS model; Evaporation-residue excitation functions; Ca-48 induced fusion reactions; Isotopic trends; QUASI-FISSION; ANGULAR-MOMENTUM; HEAVIEST NUCLEI; CROSS-SECTIONS; ION COLLISIONS; DYNAMICS; ELEMENTS; ISOTOPES; BARRIER; MODEL;

D O I：

10.1016/j.nuclphysa.2008.11.003

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：

Within the framework of a dinuclear system (DNS) model, the evaporation-residue excitation functions and the quasi-fission mass yields in the Ca-48 induced fusion reactions are investigated systematically and compared with available experimental data. Maximal production cross sections of superheavy nuclei based on stable actinide targets are obtained. Isotopic trends in the production of the superheavy elements Z = 110, 112-118 based oil the actinide isotopic targets are analyzed systematically. Optimal evaporation channels and combinations as well as the corresponding excitation energies are proposed. The possible factors that influencing the isotopic dependence of the production cross sections are analyzed. The formation of the superheavy nuclei based on the isotopes U with different projectiles are also investigated and calculated. Crown Copyright (C) 2008 Published by Elsevier B.V. All rights reserved.

引用

页码：33 / 51

页数：19

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