【摘要】 用强子和弦级联模型LUCIAE系统地研究了相对论性p +p和Pb +Pb碰撞中介子产生 .在模型框架内实验测得的 1 58AGeV/cPb +Pb碰撞中介子产额相对于同能量p +p碰撞的增强现象 ,依赖于弦发射胶子的集体效应和奇异夸克压低约化两机制 ,在一定程度内能得到解释更多还原

【Abstract】 The  meson production in relativistic nucleus-nucleus collisions is investigated systematically using a hadron-string cascade model LUCIAE. Within the framework of the model and relying on the collective effects in the gluon emission of string and the reduction of the s-quark suppression, the NA49 data of  meson enhancement in the 158 A GeV/c Pb+Pb collision relative to that in p+p collision at the same energy is reproduced in certain extent.更多还原