...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Quantitative estimate of pion fluctuation and its multiplicity dependence in nuclear collisions
【24h】

Quantitative estimate of pion fluctuation and its multiplicity dependence in nuclear collisions

机译：核碰撞中介子涨落及其多重相关性的定量估计

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper presents the results of an investigation on the multiplicity dependence of the fluctuation pattern of pions for the entire accelerator energy range from 2.1 to 200 AGeV. The data set for produced pions is divided into four sets depending on the number of shower tracks n(s). Analysis is carried out in two-dimensional eta-phi space with the Hurst exponent to take care of the anisotropy of the phase space. The Hurst exponent is extracted by fitting one-dimensional factorial moment saturation curves to Ochs' saturation formula. The values of the effective fluctuation strength alpha(eff) are estimated and multiplicity dependence is studied w.r.t. alpha(eff) and the Hurst exponent H. It is highly interesting to observe that both fluctuation strength and degree of anisotropy (characterized by H) depend on pion multiplicity. The multiplicity dependence is more pronounced at lower projectile energy. The results of the study are discussed in detail.
机译：本文介绍了在整个加速器能量范围从2.1到200 AGeV范围内，离子波动模式的多重依赖性研究结果。根据淋浴轨迹n（s）的数量，生成的小便的数据集分为四组。使用Hurst指数在二维eta-phi空间中进行分析，以注意相空间的各向异性。通过将一维阶乘矩饱和度曲线拟合到Ochs的饱和度公式来提取Hurst指数。估算有效波动强度alpha（eff）的值，并研究重数依赖性。 α（eff）和Hurst指数H。非常有趣的是，观察到波动强度和各向异性程度（由H表征）都取决于介子的多重性。在较低的射弹能量下，多重性依赖性更加明显。研究结果将详细讨论。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号