用相对论VUU研究平均场和核—核子截面对高能和中能集体流的影响

Studying the influences of Mean Field and NN Cross Section on the Collective Flow at High and Intermediate Energy in the Relativistic VUU Approach

用基于Ｗａｌｅｃｋａ的ＱＨＤ－Ｉ模型的相对论Ｖｌａｓｏｖ－Ｕｅｈｌｉｎｇ－Ｕｈｌｅｎｂｅｃｋ（ＲＶＵＵ）方程，分析了高能和中能重离子碰撞中的集体流，研究了用集体流探测核物质状态方程和核内核子－核子截面的可行性．

We have studied the collective flow at high and intermediate energy in a relativistic Vlasov-Uehling-Uhlenbeck(RVUU)approach based on Walecka's QHD-I model,with the aim of probing the nuclear matter equation of state(EOS)and the in-medium n-n cross section.