Features of the total disintegration events of heavyemulsion targets caused by 4.5A GeV/c16O |
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Authors: | Zhang Dong-Hai Liu Fang He Chun-Le Zhao Hui-Hu Jia Hui-Ming Li Xue-Qin Li Zhen-Yu and Li Jun-Sheng |
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Affiliation: | Institute of Modern Physics, Shanxi Normal University, Linfen 041004, China |
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Abstract: | 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. |
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Keywords: | relativistic heavy-ion
collision total disintegration nuclear emulsion |
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