| 高能Au+Au碰撞末态多重数赝快度分布研究 |
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| 引用本文： | 王增伟,姜志进,张裕仕.高能Au+Au碰撞末态多重数赝快度分布研究[J].上海理工大学学报,2009,31(4). |
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| 作者姓名： | 王增伟 姜志进 张裕仕 |
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| 作者单位： | 1. 上海理工大学,理学院,上海,200093
2. 枣庄学院,物理与电子工程系,枣庄,277160 |
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| 基金项目： | 上海市重点学科建设资助项目 |
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| 摘 要： | 利用Glauber模型,计算出核核碰撞中的参与者数、旁观者数及二元核子核子碰撞数.考虑到能量损失和旁观者效应对末态带电粒子赝快度分布的影响,通过对核子核子碰撞快度分布的逐次叠加得到核核碰撞末态带电粒子的赝快度分布.并用其讨论了PHOBOS合作组在高能Au+Au碰撞所做的实验测量.理论与实验结果符合得很好.
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| 关 键 词： | Glauber模型 赝快度分布 二元核子核子碰撞数 旁观者数 |
Charged-particle pseudorapidity distributions in Au+Au collisions at high energy |
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| WANG Zeng-wei,JIANG Zhi-jin,ZHANG Yu-shi.Charged-particle pseudorapidity distributions in Au+Au collisions at high energy[J].Journal of University of Shanghai For Science and Technology,2009,31(4). |
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| Authors: | WANG Zeng-wei JIANG Zhi-jin ZHANG Yu-shi |
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| Institution: | 1.College of Science;University of Shanghai for Science and Technology;Shanghai 200093;China;2.Department of Physics and Electronic Engineering;Zaozhuang College;Zaozhuang 277160;China |
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| Abstract: | Using the Glauber model,the numbers of participants,spectators and as well as the number of binary nucleon-nucleon collisions were calculated in high-energy heavy-ion collisions.The pseudorapidity distributions of charged particles in nucleus-nucleus collisions was obtained by repeated addition of the rapidity distribution of nucleon-nucleon collision with consideration of the effect of energy loss and spectator particle influence.The theoretical results agree well with those of the experimental measurement... |
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| Keywords: | Glauber model pseudorapidity distribution the number of binary nucleon-nucleon collisions the number of spectators |
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