Influence of in-medium nucleon-nucleon cross section on the isoscaling parameter α

被引：1
|
作者：
Liu, J. Y. [1 ,2 ,4 ]
Guo, W. J. [3 ]
Hao, H. F. [1 ]
Zuo, W. [1 ,4 ]
Lee, X. G. [1 ,4 ]
机构：
[1] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
[2] Tianshui Normal Univ, Coll Math Phys & Informat, Gansu 741000, Tianshui, Peoples R China
[3] Shanghai Univ Sci & Technol, Coll Sci, Shanghai 200093, Peoples R China
[4] Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China
来源：
NUCLEAR PHYSICS A | 2008年 / 811卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
Isoscaling; Nucleon-nucleon cross section; Collision number; Mechanism;
D O I：
10.1016/j.nuclphysa.2008.07.005
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 influence of in-medium nucleon-nucleon cross section on the isoscaling parameter a is investigated for two couples of central nuclear reactions Ca-40 + Ca-40 and Ca-60 + Ca-40; Sn-112 + Sn-112 and Sn-124 + Sn-124 within the isospin dependent quantum molecular dynamics. The calculated result shows that the influence of the in-medium nucleon-nucleon cross section on the isoscaling parameter a is mainly determined by the corresponding number of collisions, both for isospin dependent and isospin independent parameterizations. The mechanisms behind the effects of the in-medium nucleon-nucleon cross sections on the alpha are investigated in more details. (C) 2008 Elsevier B.V All rights reserved.
引用
收藏
页码：223 / 231
页数：9
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