Cross-Correlation of Excitation Functions for Different Fragments and Different Scattering Angles in ^27Al（^19F,x）y Reactions  

作　　者：韩建龙 王琦 白真 董玉川 李松林 段利敏 徐瑚珊 徐华根 陈若富 吴和宇 李志常 路秀琴 赵葵 周平 刘建成 许国基 Sergey Yu Kun 

机构地区：[1]Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 [2]Graduate School of Chinese Academy of Sciences, Beijing 100049 [3]China Institute of Atomic Energy, Beijing 102413 [4]Centro de Ciencias Fisicas, National University of Mexico (UNAM), Cuernavaca, Mexico [5]Center for Nonlinear Physics, RSPhysSE, The Australian National University, Canberra ACT 0200, Australia

出　　处：《Chinese Physics Letters》2008年第4期1251-1254,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 10675149, the Knowledge Innovation Project of Chinese Academy of Sciences under Grant No KJCX3.SYW.N1, and the National Basic Research Programme of China under Grant No 2007CB81500.

摘　　要：Excitation functions have been measured for different projectile-like fragments produced in ^27Al（^19F, x ）y reactions at incident energies from 110. 25 to 118. 75 Me V in 250 ke V steps. Strong cross section fluctuations of the excitation functions are observed. The cross-correlation coefficients of the excitation functions for different atomic number Z and for different scattering angle θcm have been deduced. These coefficients are much larger than the statistical theoretical calculated ones. This indicates that there are strong correlations between different exit channels in the dissipative heavy ion collision of ^27Al（^19F, x）y.Excitation functions have been measured for different projectile-like fragments produced in ^27Al（^19F, x ）y reactions at incident energies from 110. 25 to 118. 75 Me V in 250 ke V steps. Strong cross section fluctuations of the excitation functions are observed. The cross-correlation coefficients of the excitation functions for different atomic number Z and for different scattering angle θcm have been deduced. These coefficients are much larger than the statistical theoretical calculated ones. This indicates that there are strong correlations between different exit channels in the dissipative heavy ion collision of ^27Al（^19F, x）y.

关 键 词：supernova explosion proto-neutron star shock wave 

分 类 号：O57[理学—粒子物理与原子核物理]