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Chinese Physics, 2006, Vol. 15(11): 2564-2570    DOI: 10.1088/1009-1963/15/11/018
NUCLEAR PHYSICS Prev   Next  

Features of the total disintegration events of heavyemulsion targets caused by 4.5A GeV/c16O

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)
Institute of Modern Physics, Shanxi Normal University, Linfen 041004, China
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.
Keywords:  relativistic heavy-ion collision      total disintegration      nuclear emulsion  
Received:  07 December 2005      Revised:  20 June 2006      Accepted manuscript online: 
PACS:  25.75.Dw (Particle and resonance production)  
  21.65.-f (Nuclear matter)  
  24.10.Pa (Thermal and statistical models)  
  27.20.+n (6 ≤ A ≤ 19)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No 10475054), the Major Science and Technology Foundation of Ministry of Education of China (Grant No 205026), the Natural Science Foundation of Shanxi Province, China (Grant No 20021007) and Shanxi Provincial Foundation for Returned Scholars, China (Grant No 20031046)

Cite this article: 

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) Features of the total disintegration events of heavyemulsion targets caused by 4.5A GeV/c16O 2006 Chinese Physics 15 2564

[1] Single source emission of proton projectile fragments in nucleus-emulsion interactions
Zhang Dong-Hai (张东海), Li Jun-Sheng (李俊生), Li Hui-Ling (李惠玲 ). Chin. Phys. B, 2012, 21(11): 110501.
[2] Evidence of self-affine multiplicity fluctuation of particle production in 84Kr--emulsion interactions at 1.7 A GeV
Zhang Dong-Hai(张东海) and Li Hui-Ling(李惠玲). Chin. Phys. B, 2009, 18(2): 522-530.
[3] Helium production from 84Kr-- and 197Au--emulsion interactions at high energies
Zhang Dong-Hai(张东海), Cheng Jin-Xia(程锦霞), Cheng Bin(成宾), Wang Fang(王芳), Wang Qi(王琦), Zhang Hai-Qing(张海青), Xu Rong(许蓉), Jia Hui-Ming(贾会明), and Li Xue-Qin(李雪琴). Chin. Phys. B, 2009, 18(2): 531-536.
[4] Evidence of intermittent fluctuation of target fragments in 84Kr--AgBr interactions at 1.7 A GeV
Zhang Dong-Hai(张东海), Li Xue-Qin(李雪琴), Jia Hui-Ming(贾会明), He Chun-Le(何春乐), Liu Fang(刘芳), Zhao Hui-Hua(赵惠华), Li Zhen-Yu(李振宇), and Li Jun-Sheng(李俊生). Chin. Phys. B, 2007, 16(9): 2683-2688.
[5] Intermittency in 3.7 A GeV 16O-emulsion interactions
Zhang Dong-Hai(张东海), Zhao Hui-Hua(赵惠华), Liu Fang(刘芳), He Chun-Le(何春乐), 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). Chin. Phys. B, 2007, 16(9): 2689-2700.
[6] Forward--backward multiplicity correlations in 4.5 A GeV/c 16O--emulsion interactions
Zhang Dong-Hai(张东海), Zhao Hui-Hua(赵惠华), Liu Fang(刘芳), He Chun-Le(何春乐), 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). Chin. Phys. B, 2006, 15(9): 1987-1995.
[7] Fragmentation in 16O-emulsion interactions at 3.7 A GeV
Zhang Dong-Hai (张东海), Li Zhen-Yu (李振宇), Li Hui-Ling (李惠玲), Li Jun-Sheng (李俊生). Chin. Phys. B, 2005, 14(12): 2451-2457.
[8] Fragmentation of 16O nuclei in nuclear emulsion
Zhang Dong-Hai (张东海). Chin. Phys. B, 2002, 11(12): 1254-1258.
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