Fusion enhancement in the reactions of neutron-rich nuclei

被引：14
|
作者：
Bian, Bao-An [1 ,2 ]
Zhang, Feng-Shou [2 ,3 ]
Zhou, Hong-Yu [2 ]
机构：
[1] Jiangnan Univ, Sch Sci, Wuxi 214122, Peoples R China
[2] Beijing Normal Univ, Coll Nucl Sci & Technol, Minist Educ, Key Lab Beam Technol & Mat Modificat, Beijing 100875, Peoples R China
[3] Ctr Theoret Nucl Phys, Natl Lab Heavy Ion Accelerator Lanzhou, Lanzhou 730000, Peoples R China
来源：
NUCLEAR PHYSICS A | 2009年 / 829卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
Neutron-rich fusion reaction; Shell correction; Coulomb barrier; Fusion cross section; HEAVY-ION FUSION; SUBBARRIER FUSION; ISOTOPIC DEPENDENCE; CROSS-SECTIONS; BARRIER; ENERGIES; DYNAMICS; MODEL; FLOW;
D O I：
10.1016/j.nuclphysa.2009.08.003
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：
The neutron-rich fusion reactions are investigated systematically using the improved isospin dependent quantum molecular dynamics model. By studying the systematic dependence of fusion barrier on neuron excess, we find the enhancement of the fusion cross sections for neutron-rich nuclear reactions that give the lowered static Coulomb barriers. The calculated fusion cross sections agree quantitatively with the experimental data. We further discuss the mechanism of the fusion enhancement of the cross sections for neutron-rich nuclear reactions by analyzing the dynamical lowering of the Coulomb barrier that is attributed to the enhancement of the N/Z ratio at the neck region. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：1 / 12
页数：12
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