【摘要】 本文给出了一个简单的相对论性强子级联模型，并用它模拟了Ｓｉ（１４．６ＡＧｅＶ／ｃ）＋Ａｕ的反应．研究了共振态对质子π的快度分布以及质子横质量分布的影响．在此模型中，碰撞粒子的纵动量变化（非弹情形）由阻止律给出；而粒子的横动量分布通过指数分布或高斯分布抽样．我们的结果与Ｅ８１０（８１４）数据和Ｅ８０２的新结果较好地符合．这表明：共振态△的引入能更好地反映碰撞的物理过程；ＡＧＳ能量下核系统的强阻止性已无可非议．更多还原

【Abstract】 A simple relativistic hadronic cascade model is given and then applied to simulate the reaction of Si(14.6AGeV/c)+Au.The △ resonance effects on the rapidity distributions of proton and pion and on the transverse mass distribution of proton are investigared.In this model,the longitudinal momentum of scattered particle is given by stopping law while the transverse momentum is sampled from exponential or Guassian distribution.The theoretical results are in a good agreement with the E802 new results and with the E810(E814)data.This indicates that that introduction of △ resonance is necessary for the better description of the reaction process.It is also convinced that the strong nuclear stopping at AGS energy is no doubt any more.更多还原