中国物理B ›› 2007, Vol. 16 ›› Issue (9): 2689-2700.doi: 10.1088/1009-1963/16/9/033

• NUCLEAR PHYSICS • 上一篇    下一篇

Intermittency in 3.7 A GeV 16O-emulsion interactions

张东海, 赵惠华, 刘芳, 何春乐, 贾会明, 李雪琴, 李振宇, 李俊生   

  1. Institute of Modern Physics, Shanxi Normal University, Linfen 041004, China
  • 收稿日期:2006-11-12 修回日期:2006-12-25 出版日期:2007-09-20 发布日期:2007-09-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10475054), the Key Program of Ministry of Education, China (Grant No 205026), the Natural Science Foundation of Shanxi Province, China (Grant No 20021007) and Shanxi Provincial Foundation for Returned Scholars, China (Grant No 20031046).

Intermittency in 3.7 A GeV 16O-emulsion interactions

Zhang Dong-Hai(张东海)†, Zhao Hui-Hua(赵惠华), Liu Fang(刘芳), He Chun-Le(何春乐), Jia Hui-Ming(贾会明), Li Xue-Qin(李雪琴), Li Zhen-Yu(李振宇), and Li Jun-Sheng(李俊生)   

  1. Institute of Modern Physics, Shanxi Normal University, Linfen 041004, China
  • Received:2006-11-12 Revised:2006-12-25 Online:2007-09-20 Published:2007-09-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10475054), the Key Program of Ministry of Education, China (Grant No 205026), the Natural Science Foundation of Shanxi Province, China (Grant No 20021007) and Shanxi Provincial Foundation for Returned Scholars, China (Grant No 20031046).

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摘要： The intermittency effect has been studied for an interaction of 3.7 A GeV $^{16}$O with emulsion using the distributions of both the pseudorapidity intervals and the azimuthal angle intervals of the shower particles emitted in a central rapidity region. The scaled factorial moments, reduced scaled factorial moments and multifractal moments as functions of the bin size in pseudorapidity and in azimuthal angle have been calculated and have revealed the presence of an intermittent behaviour which may be due to the random cascading property of the reaction. The anomalous fractal dimension has been found to increase with the increase of rank of the moment.

Abstract: The intermittency effect has been studied for an interaction of 3.7 A GeV $^{16}$O with emulsion using the distributions of both the pseudorapidity intervals and the azimuthal angle intervals of the shower particles emitted in a central rapidity region. The scaled factorial moments, reduced scaled factorial moments and multifractal moments as functions of the bin size in pseudorapidity and in azimuthal angle have been calculated and have revealed the presence of an intermittent behaviour which may be due to the random cascading property of the reaction. The anomalous fractal dimension has been found to increase with the increase of rank of the moment.

Key words: relativistic heavy-ion collision, intermittency, nuclear emulsion

中图分类号:  (Quark deconfinement, quark-gluon plasma production, and phase transitions)

  • 25.75.Nq
21.65.-f (Nuclear matter) 24.60.Ky (Fluctuation phenomena) 27.20.+n (6 ≤ A ≤ 19)