%0 Journal Article
%T Entrance channel effects on the role of isospin-dependent momentum interaction in isospin fractionation in heavy ion collisions<br>同位旋依赖的动量相关作用对同位旋分馏的影响随入射道条件的演化
%A Liu Jian-Ye
%A Xing Yong-Zhong
%A Guo Wen-Jun
%A <br>刘建业
%A 邢永忠
%A 郭文军
%J 物理学报
%D 2006
%I 
%X An isospin degree of freedom is inserted into the momentum dependent interaction in the quantum molecular dynamics model to obtain an isospin dependent momentum interaction given in a form practically usable in isospin dependent quantum molecular dynamics model. We investigate the entrance channel effects for the role of isospin momentum dependent interaction on the isospin fractionation ratio and its dynamical mechanism in the intermediate energy heavy ion collisions. It is found that the isospin dependent momentum interaction induces a significant reduction of isospin fractionation ratio under all entrance channel conditions. However the strong dependence of isospin fractionation ratio on the symmetry potential is preserved after considering the isospin degree of freedom in the momentum dependent interaction.
%K isospin fractionation ratio
%K momemtum dependent interaction
%K heavy ion collision<br>同位旋分馏比
%K 动量相关作用
%K 重离子碰撞
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=43DCAAA458A4C71E&yid=37904DC365DD7266&vid=E514EE58E0E50ECF&iid=CA4FD0336C81A37A&sid=C753EB8AC8F551B9&eid=C3BF5C58156BEDF0&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=44