| 高能重离子碰撞中的一维非均匀集体流特征研究 |
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| 引用本文： | 冯笙琴,袁显宝. 高能重离子碰撞中的一维非均匀集体流特征研究[J]. 三峡大学学报(自然科学版), 2004, 26(3): 281-284 |
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| 作者姓名： | 冯笙琴 袁显宝 |
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| 作者单位： | 三峡大学,理学院,湖北,宜昌,443002 |
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| 基金项目： | 湖北省教育厅科技计划资助项目(20032002)，三峡大学科学基金资助课题(2003C02) |
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| 摘 要： | 高能重离子碰撞的集体流研究已经引起实验和理论上的广泛关注，纵向和横向流与系统早期时空演化密切相关，有丰富的物理内涵．非均匀纵向流理论是在高能重离子碰撞的热化模型和均匀集体流基础上发展起来的．非均匀集体流理论可以解释AGS能区的末态粒子最新的分布特征，尤其是解释了困扰实验和理论物理学家多年的快度中心分布下凹现象．
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| 关 键 词： | 热力学模型 均匀集体流 非均匀集体流 时空演化特征 |
| 文章编号： | 1007-7081(2004)03-0281-04 |
| 修稿时间： | 2003-11-10 |
Research on Feature of Non-Uniform Collective Flow in Relativistic Heavy-Ion Collisions |
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| Feng Shengqin Yuan Xianbao. Research on Feature of Non-Uniform Collective Flow in Relativistic Heavy-Ion Collisions[J]. Journal of China Three Gorges University(Natural Sciences), 2004, 26(3): 281-284 |
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| Authors: | Feng Shengqin Yuan Xianbao |
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| Abstract: | Much attention has been paid on the collective flow analysis , because there is rich physics in both longitudinal and transverse flow, which relate with the space-time evolution of early collisions. The background of non-uniform collective flow has been analyzed first. Basing on the thermal model and uniform collective flow model, we develop non-uniform flow model (NUFM) which can analyse the newest experimental feature of AGS data betterly. Especially, it can explain the gap of central rapidity phenomenon distribution that puzzled physicists for many years. |
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| Keywords: | thermal model uniform collective flow non-uniform collective flow space-time evolution feature |
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