| 400GeV/c pp碰撞集束参数和集束关联子数据 |
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| 引用本文： | 王韶舜,刘冉,汪兆民.400GeV/c pp碰撞集束参数和集束关联子数据[J].中国物理 C,1999,23(12):1135-1140. |
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| 作者姓名： | 王韶舜 刘冉 汪兆民 |
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| 作者单位： | 中国科学技术大学近代物理系!合肥２３００２７ |
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| 基金项目： | 国家自然科学基金!19675033 |
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| 摘 要： | 利用400GeV/c pp碰撞产生的带电粒子赝快度分布和方位角分布计算了集束参数和集束关联子.结果表明集束参数不仅依赖于多重数分布的宽度,还与粒子间的关联有关.在赝快度和方位角空间,集束参数η 2(M)和η3 (M)遵循同样的幂律行为,表明在400GeV/c pp碰撞多重产生中多重分形行为被观测到了.在赝快度空间二级集束关联子依赖于多重数分布的宽度,并随子区间之间的距离的增加而减小.
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| 关 键 词： | 标度阶乘矩 阶乘关联子 集束参数 集束关联子 幂律行为 多重分形 |
| 收稿时间： | 1998-12-17 |
Data of Bunching Parameter and Correlator in 400GeV/c pp Collisions |
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| Wang Shaoshun,Liu Ran,Wang Zhaomin.Data of Bunching Parameter and Correlator in 400GeV/c pp Collisions[J].High Energy Physics and Nuclear Physics,1999,23(12):1135-1140. |
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| Authors: | Wang Shaoshun Liu Ran Wang Zhaomin |
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| Institution: | Wang Shaoshun;(Department of Modern Physics,
University of Science and Technology of China, Hefei 230027) |
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| Abstract: | The bunching parameters and bunching correlators have been calculated byusing the Pseudorapidity and azimuthal angle distribuhons of charged pridesproduced in PP collisions at 400GeV/c. The results show that the values of bunchingparameter depend not only on the width of mulhplicity distribuhon. but also on thecormlahon of particles. The bunching parameters n2(M and n3(M follow the samePOwer-law behavior in pseudorapidity and azimuthal angle spaces indicating that themultifractal strUcture in pp collisions at 400GeV / c is observed. The values of thesecond-order bunching cormlators in pseudorapidity space depend on the width ofmultiplicity distribuhons and decrease with increasing bin-bin disuse D. |
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| Keywords: | scaled factorial moment factorial correlator bunching parameter bunchingcorrelator power-law behavior multifractal |
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