中国物理B ›› 2004, Vol. 13 ›› Issue (5): 646-656.doi: 10.1088/1009-1963/13/5/014

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The production of slow particles in 16O-Em interactions at 4.5 A GeV/c

吴凤娟, 张东海, 李俊生, 李振宇   

  1. Institute of Modern Physics, Shanxi Normal University, Linfen 041004, China
  • 收稿日期:2003-06-10 修回日期:2003-10-31 出版日期:2004-05-06 发布日期:2005-07-06
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10275042), the Shanxi Provincial Natural Science Foundation (Grant No 20021007) and Shanxi Provincial Foundation for Returnees.

The production of slow particles in 16O-Em interactions at 4.5 A GeV/c

Wu Feng-Juan (吴凤娟), Zhang Dong-Hai (张东海), Li Jun-Sheng (李俊生), Li Zhen-Yu (李振宇)   

  1. Institute of Modern Physics, Shanxi Normal University, Linfen 041004, China
  • Received:2003-06-10 Revised:2003-10-31 Online:2004-05-06 Published:2005-07-06
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10275042), the Shanxi Provincial Natural Science Foundation (Grant No 20021007) and Shanxi Provincial Foundation for Returnees.

摘要: A sample of 1233 events is used to study the general characteristics of {}^{16}O-Em interactions at 4.5 A GeV/c. Multiplicity and angular distributions of slow particles and correlations among them are discussed. The present data are compared with the corresponding results from the interactions of other projectiles at the same energy and also the same projectile at different energies. The results indicate that black particle production is independent of the energy and mass of the projectile, but for grey particles it is dependent on the mass of projectile.

关键词: relativistic heavy-ion collision, slow particles, multiplicity distribution, angular distribution, multiplicity correlation

Abstract: A sample of 1233 events is used to study the general characteristics of $^{16}$O-Em interactions at 4.5 A GeV/c. Multiplicity and angular distributions of slow particles and correlations among them are discussed. The present data are compared with the corresponding results from the interactions of other projectiles at the same energy and also the same projectile at different energies. The results indicate that black particle production is independent of the energy and mass of the projectile, but for grey particles it is dependent on the mass of projectile.

Key words: relativistic heavy-ion collision, slow particles, multiplicity distribution, angular distribution, multiplicity correlation

中图分类号:  (Quark deconfinement, quark-gluon plasma production, and phase transitions)

  • 25.75.Nq
29.40.Rg (Nuclear emulsions) 23.20.En (Angular distribution and correlation measurements) 27.20.+n (6 ≤ A ≤ 19)