重离子碰撞中的K介子流(英文)  

Kaon Flow in Heavy-Ion Collisions

作　　者：郑玉明[1] 储自立 Fuchs Christian Faessler Amand 肖武 华大平 

机构地区：[1]中国原子能科学研究院,北京102413 [2]Institute of Theoretical Physics,Tuebingen University.Germany [3]中国核工业研究生部,北京102413

出　　处：《高能物理与核物理》2002年第z1期77-81,共5页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金(19975074);DFG(446CHV-113/91/1)资助~~

摘　　要：用量子分子动力学(QMD)模型研究了中能重离子碰撞中的K+介子流.计算结果显出,实验数据只能与计入由手征拉格朗日导出的K+平均场势的结果相符合.这表明,K+介子边流的形式是对在核介质中K+位势的一个有效的探针.The kaon flow in heavy-ion collisions at intermediate energy is studied in the QMD model. The calculated results show that the experimental data are only consistent with the ones that include the kaon mean-field potential from the chiral Lagrangian.This indicates that the sideflow pattern of positive charged kaons is an useful probe of the kaon potential in nuclear medium.

关 键 词：重离子碰撞 K介子流 在介质中的K+位势 

分 类 号：O572.21[理学—粒子物理与原子核物理]