摘要
利用强子-强子碰撞的模型PYTHIA以及核-核碰撞的模型RQMD比较了各种电荷起伏测量量的快度依赖性,结果发现,这些测量量对快度的依赖性依赖于模型.但是,电荷关联能很好地测量整体电荷守恒以及短程快度关联性质.因此,被认为是一个好的反应电荷起伏的测量量.
The dependencies of all suggested measures for charge fluctuation on the size of rapidity window are compared by using the hadronic and nuclear collision models--PYTHIA and RQMD. It is found that such dependency is model dependent. However, the charge correlations have the best measure for the effects of global charge conservation and short-range rapidity correlation and is therefore recommended.
出处
《高能物理与核物理》
EI
CSCD
北大核心
2005年第8期766-769,共4页
High Energy Physics and Nuclear Physics
