Central events in the interactions of 28Si and 32S with heavy emulsion targets |
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| Authors: | M El-Nadi MS El-Nagdy A Abdelsalam EA Shaat N Ali-Mossa Z Abou-Moussa Kh Abdel-Waged A M-Abdalla E El-Falaky |
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| Institution: | (1) Physics Department, Faculty of Science, Cairo University, Egypt, EG;(2) Physics Department, Faculty of Science, Helwan University Ain Helwan, Cairo, Egypt, EG;(3) Basic Science Department, Faculty of Engineering, Shoubra, Egypt, EG;(4) Physics Department, Faculty of Applied Science, Umm Al-Qura University, P.O. Box 6924, Makkah, Saudi Arabia, SA |
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| Abstract: | Data on the multiplicity of secondaries in central events of 28Si (14.6 AGeV) and 32S (3.7 AGeV) interactions with AgBr emulsion nuclei have been compiled and studied. The dependence of the multiplicities of
the outgoing charged stripping particles on the number of interacting nucleons and therefore on the impact parameter, as indicated
by the target size, and consequently, on the degree of centrality is investigated. The resultant multiplicity distribution
of the produced pions for each studied case is fitted by both Negative Binomial (NB) and Poisson distributions. The NB distribution
is valid for most of the considered cases. The transparency of the target for a projectile was found to become more pronounced
as the incident energy increased.
Received: 20 June 2000 / Accepted: 17 January 2001 |
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| Keywords: | PACS 25 75 -q Relativistic heavy-ion collisions |
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