Volume 500, Issue 5 pp. 353-361
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A Comparative Study of Proton-Emulsion and Heavy-Ion-Emulsion Interactions at 4.5 GeV/c per Nucleon

D. Ghosh

D. Ghosh

High Energy Physics Division Department of Physics Jadavpur University, Calcutta-700032, India

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R. Sengupta

R. Sengupta

High Energy Physics Division Department of Physics Jadavpur University, Calcutta-700032, India

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A. Ghosh

A. Ghosh

High Energy Physics Division Department of Physics Jadavpur University, Calcutta-700032, India

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A. Mukhopadhyay

A. Mukhopadhyay

High Energy Physics Division Department of Physics Jadavpur University, Calcutta-700032, India

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J. Roy

J. Roy

Redional Computer Centre Jadavpur University Campus Calcutta-700032, India

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Abstract

en

This paper presents a comparative study of inelastic interactions of proton-Emulsion, 12C-Emulsion and 24Mg-Emulsion at 4.5 GeV/c per nucleon. The multiplicity distribution and their correlations have been studied. A strong correlation between 〈ns〉 and nh in case of 24Mg-Emulsion and 12C-Emulsion is observed which is not so in the case of proton-Emulsion interaction. It is also observed that 〈ns〉 increases with the increase of the projectile mass. The angular distribution of the target fragments in 24Mg-Emulsion and 12C-Emulsion interactions show massive forward collimations. Comparison is also made in the pseudorapidity distributions of 24Mg-Emulsion, 12C-Emulsion and proton-Emulsion interactions. The result shows many interesting features.

Abstract

de

Eine vergleichende Studie der Proton-Emulsion-Schwerionen-Emulsionwechselwirkung bei 4,5 GeV/c pro Nucleon

Die inelastischen Wechselwirkungen von Protonen, 12C- und 24Mg-Ionen mit Emulsionen werden verglichen. Dazu wird die Multiplizitätsverteilung und ihre Korrelationen untersucht. Es kann gezeigt werden, daß die Zahl der Schauerpartikel im Falle der 12C-, 24Mg-Emulsionwechselwirkungen fest zur Zahl der hochionisierenden Partikel korreliert ist und mit der Projektilmasse wächst. Die Schwerionenexperimente zeigen eine vorwärts collimierte, räumliche Verteilung der Targetfragmente. Die Pscudorapiditätsverteilung wird in allen Experimenten untersucht.

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