Two-dimensional multiplicity fluctuation analysis of target residues in nuclear collisions  

作　　者：张东海 牛耀婕 王立春 闫文君 高丽娟 李明星 武丽萍 李惠玲 李俊生 

机构地区：[1]Institute of Modern Physics,Shanxi Normal University

出　　处：《Chinese Physics B》2010年第7期198-203,共6页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No. 10475054);the Natural Science Foundation of Shanxi Province,China(Grant No. 2008011005);the Shanxi Provincial Foundation for Returned Scholars of China

摘　　要：Multiplicity fluctuation of the target residues emitted in the interactions in a wide range of projectile energies from 500 A MeV to 60 A GeV is investigated in the framework of two-dimensional scaled factorial moment methodology. The evidence of non-statistical multiplicity fluctuation is found in 160-AgBr collisions at 60 A GeV, but not in 56Fe-AgBr collisions at 500 A MeV, 84Kr-AgBr collisions at 1.7 A GeV, 16O-AgBr collisions at 3.7 A GeV and 197Au-AgBr collisions at 10.7 A GeV.Multiplicity fluctuation of the target residues emitted in the interactions in a wide range of projectile energies from 500 A MeV to 60 A GeV is investigated in the framework of two-dimensional scaled factorial moment methodology. The evidence of non-statistical multiplicity fluctuation is found in 160-AgBr collisions at 60 A GeV, but not in 56Fe-AgBr collisions at 500 A MeV, 84Kr-AgBr collisions at 1.7 A GeV, 16O-AgBr collisions at 3.7 A GeV and 197Au-AgBr collisions at 10.7 A GeV.

关 键 词：relativistic heavy-ion collisions target fragmentation non-statistical fluctuation 

分 类 号：O571.4[理学—粒子物理与原子核物理]