Energy dependence of non-linear dynamical features in e^+e^- collisions  

作　　者：李迪开 陈刚 魏会领 

机构地区：[1]Department of Physics,College of Maths and Physics,China University of Geosciences,Wuhan 430074,China

出　　处：《Chinese Physics C》2008年第7期552-555,共4页中国物理C（英文版）

基　　金：Supported by NSFC(10375025);Science Foundation of Education Department of Hubei Province(EJK0316)

摘　　要：A study of the dynamical fluctuation properties at various c.m. energies in e^＋e^- collisions is performed using the Monte Carlo method. The results suggest that, after the normalized factorial moments of 3-dimensional phase space are analyzed using an isotropical phase space partition, the NFM describing non- linear dynamical properties show a power-law scaling, i.e., the dynamical fluctuations in higher dimensional phase space are isotropic. For c.m. energies √s≤ 80 GeV, the scaling exponents φq increase rapidly with the c.m. energy and for c.m. energies √s 〉 80 GeV, the φq gradually saturate.A study of the dynamical fluctuation properties at various c.m. energies in e^＋e^- collisions is performed using the Monte Carlo method. The results suggest that, after the normalized factorial moments of 3-dimensional phase space are analyzed using an isotropical phase space partition, the NFM describing non- linear dynamical properties show a power-law scaling, i.e., the dynamical fluctuations in higher dimensional phase space are isotropic. For c.m. energies √s≤ 80 GeV, the scaling exponents φq increase rapidly with the c.m. energy and for c.m. energies √s 〉 80 GeV, the φq gradually saturate.

关 键 词：e^＋e^- collisions non-linear dynamical property factorial moments energy dependence 

分 类 号：O411[理学—理论物理]