| 高能Pb-Pb碰撞中产生的奇异粒子的横质量分布(英文) |
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| 引用本文： | 谢文杰,杨德,王翠平,王志刚.高能Pb-Pb碰撞中产生的奇异粒子的横质量分布(英文)[J].原子核物理评论,2011,28(2):173-178. |
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| 作者姓名： | 谢文杰 杨德 王翠平 王志刚 |
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| 作者单位： | 1 运城学院物理与电子工程系, 山西 运城 044000;2 河北建筑工程学院数理系, 河北 张家口 075000;3 中国科学院高能物理研究所, 北京 100049 |
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| 基金项目： | 国家自然科学基金资助项目，山西省自然科学基金资助项目 |
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| 摘 要： | 基于三火球模型， 用蒙特卡罗方法计算了40和158 AGeV能量下Pb-Pb碰撞中产生的Λ, 和Ξ-强子的横质量分布。在计算中发现射弹核火球、 中心火球和靶核火球在横向有明显的扩展， 并且模型计算的结果与NA49合作组的实验结果相一致。Transverse mass distributions of Λ, , and Ξ- produced in Pb Pb reactions at 40 and 158 AGeV are described by an expansive three fireball model. A transverse expansion is observed in our calculation. The calculated results, by the expansive three fireball model, are in agreement with the experimental data of NA49 Collaboration.
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| 关 键 词： | 横质量 Pb-Pb碰撞 扩展的三火球模型 |
| 收稿时间： | 1900-01-01 |
Transverse Mass Distributions of Strange Particles Produced in Pb-Pb Collisions at High Energies |
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| XIE Wen-jie,YANG De,WANG Cui-ping,WANG Zhi-gang.Transverse Mass Distributions of Strange Particles Produced in Pb-Pb Collisions at High Energies[J].Nuclear Physics Review,2011,28(2):173-178. |
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| Authors: | XIE Wen-jie YANG De WANG Cui-ping WANG Zhi-gang |
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| Institution: | 1 Department of Physics, Yuncheng University, Yuncheng 044000, Shanxi, China;2 Department of Mathematics and Physics, Hebei Institute of Architecture and Civil Engineering, Zhangjiakou 075000, Hebei, China;3 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | Transverse mass distributions of ∧,(∧), and Ξ- produced in Pb-Pb reactions at 40 and 158 AGeV are described by an expansive three-fireball model. A transverse expansion is observed in our calculation. The calculated results, by the expansive three-fireball model, are in agreement with the experimental data of NA49 Collaboration. |
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| Keywords: | transverse mass Pb-Pb collision expansive three-fireball model |
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