中国物理B ›› 2006, Vol. 15 ›› Issue (11): 2564-2570.doi: 10.1088/1009-1963/15/11/018
张东海, 刘芳, 何春乐, 赵惠华, 贾会明, 李雪琴, 李振宇, 李俊生
Zhang Dong-Hai(张东海), Liu Fang(刘芳), He Chun-Le(何春乐), Zhao Hui-Hua(赵惠华), 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)
摘要: Total disintegration events produced by 4.5\,A GeV/c $^{16}$O--AgBr interactions are analysed to investigate the characteristics of secondary charged particles produced in such collisions. The multiplicity distributions of grey, black, and relativistic charged particles can be well represented by Gaussian distribution. The average multiplicity of grey particles is found to increase with the mass of projectile increasing, while that of black particles is found to decrease with the mass of projectile increasing. This result is in good agreement with the prediction of fireball model. Finally, the linear dependence between grey and black particles is observed, but there is no distinct dependence between the production of relativistic charged particles and the target excitation.
中图分类号: (Particle and resonance production)