Anisotropic emission of charged mesons and structure characteristic of emission source in heavy ion collisions at 1-2A GeV  

作　　者：刘福虎 

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

出　　处：《Chinese Physics B》2008年第3期883-895,共13页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos10675077 and 10275042);the Shanxi Provincial Natural Science Foundation of China(Grant No2007011005);the Shanxi Provincial Foundation for Returned Overseas Scholars,China

摘　　要：Angular distributions of pious and kaons produced in heavy ion collisions at the low-energy end of high energies （1-2 A GeV） have been investigated by using a multisource ideal gas model. The model covers the expansions and movements of the emission sources, and it is related to the collective flows. By using the analytic expression and the Monte Carlo method, the azimuthal and polar angle distributions of mesons are calculated by the model and compared with the experimental data of the KaoS Collaboration.Angular distributions of pious and kaons produced in heavy ion collisions at the low-energy end of high energies （1-2 A GeV） have been investigated by using a multisource ideal gas model. The model covers the expansions and movements of the emission sources, and it is related to the collective flows. By using the analytic expression and the Monte Carlo method, the azimuthal and polar angle distributions of mesons are calculated by the model and compared with the experimental data of the KaoS Collaboration.

关 键 词：low-energy end of high energies heavy ion collisions charged mesons anisotropic emission 

分 类 号：O572.33[理学—粒子物理与原子核物理]