| 4.5AGeV/c 24Mg与核乳胶碰撞中簇射粒子的赝快度分布 |
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| 引用本文： | 孟彩荣,李晓琳,段麦英.4.5AGeV/c 24Mg与核乳胶碰撞中簇射粒子的赝快度分布[J].中国物理 C,2004,28(11):1165-1169. |
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| 作者姓名： | 孟彩荣 李晓琳 段麦英 |
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| 作者单位： | [1]忻州师范学院物理系忻州034000 [2]山西师范大学现代物理研究所临汾041004 |
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| 基金项目： | 国家自然科学基金(10275042),山西省自然科学基金(20021006),山西省留学回国人员科研基金[晋留管办(2001)15]和山西省重点学科基金[晋教计财(2002)4]资助 |
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| 摘 要： | 报道了4.5AGeV/c 24Mg与核乳胶碰撞中产生的簇射粒子的赝快度分布,结果表明,分布宽度和峰值位置明显依赖于靶核尺寸.用柱模型对赝快度分布进行了分析,MonteCarlo方法计算得到的结果基本符合实验数据的走向,并重现了实验数据中的涨落现象.
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| 关 键 词： | 24Mg与核乳胶碰撞 赝快度分布 柱模型 |
| 收稿时间： | 2004-4-1 |
Pseudorapidity Distribution of Shower Particles in 24Mg-Emulsion Collisions at 4.5A GeV/c |
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| MENG Cai-Rong , LI Xiao-Lin DUAN Mai-Ying.Pseudorapidity Distribution of Shower Particles in 24Mg-Emulsion Collisions at 4.5A GeV/c[J].High Energy Physics and Nuclear Physics,2004,28(11):1165-1169. |
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| Authors: | MENG Cai-Rong LI Xiao-Lin DUAN Mai-Ying |
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| Institution: | MENG Cai-Rong 1,2,1) LI Xiao-Lin 2 DUAN Mai-Ying 2 1 |
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| Abstract: | The pseudorapidity distribution of shower particles produced in the 24 Mg-emulsion collisions at 4.5A GeV/c is reported in this paper. The dependences of the distribution width and the peak position on the target size are observed.The pseudorapidity distribution of shower particles for the events with low target multiplicity (light target) is narrower than that with high target multiplicity (heavy target). The maximum probability pseudorapidity for light target is greater than that for heavy target. The experimental data is analyzed by using the cylinder model suggested by Liu et al. The Monte Carlo results based on Liu's cylinder model are approximately in agreement with the experimental tendency and fluctuation. |
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| Keywords: | 24Mg-emulsion collisions pseudorapidity distribution cylinder model |
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