%0 Journal Article
%T Isoscaling Parameter α as a Possible Probe of Medium Effect of Nucleon--Nucleon Cross Section
%A 刘建业
%A 郝焕锋
%A 邢永忠
%A 左维
%A 李希国
%J 中国物理快报
%D 2007
%I 
%X The medium effect of nucleon-nucleon cross section reed σ^medNN （αm） on the isoscaling parameter α is investigated for two central nuclear reactions ^40 Ca＋ ^40Ca, ^60Ca＋^60Ca within isospin-dependent quantum molecular dynamics at beam energies from 40 to 50 MeV/nucleon. It is found that there is the very obvious medium effects of nucleonreed nucleon cross section σ^medNN （αm） on the isoscaling parameters a. In this case the isoscaling parameter a is a possible probe of the medium effect of nucleon-nucleon cross section σ^medNN （αm） in the heavy ion collisions. The mechanism of the above-mentioned properties is studied and discussed.
%K 参数
%K 介质
%K 原子核
%K 区域
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=03664AC44D480818FD83B29BF56A89FD&yid=A732AF04DDA03BB3&vid=B91E8C6D6FE990DB&iid=DF92D298D3FF1E6E&sid=8F23BB34AC8262BD&eid=B56549D8EAA47873&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=0