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用PACIAE模型研究碰撞能量分别为sNN=19.6、62.4、130和200GeV,碰撞中心度分别为0～6%、0～10%、15%～25%和35%～45%的Au+Au碰撞,以及碰撞能量为sNN=5500GeV,碰撞中心度为0～10%的Pb+Pb碰撞。PACIAE模型是1个含有完整部分子和强子级联演化的输运模型,它建立在强子-强子碰撞的输运模型PYTHIA模型上。PACIAE模型包含4个阶段,分别为:部分子初始化,部分子演化(散射),强子化,强子演化(再散射)。模型计算给出的Au+Au碰撞中带
The collisional energy of sNN = 19.6, 62.4, 130 and 200GeV were studied by PACIAE model. The impact centers were 0 ~ 6%, 0 ~ 10%, 15% ~ 25% and 35% ~ 45% And collision of Pb + Pb with collision energy of sNN = 5500GeV and collision center of 0 ~ 10%. The PACIAE model is a transport model that contains a complete partial and an isotropic cascade evolutionary model that is based on the PYTHIA model of a hadron-hadron collision transport model. The PACIAE model consists of four stages, which are partial sub-initialization, partial sub-evolution (scattering), hadronization and hadron evolution (re-scattering). The model calculates the band in the Au + Au collision