Some interesting results on compound multiplicity in ¹²C-nucleus reactions at 4.5 A GeV/c

Abstract

An attempt was made to investigate some interesting characteristics of compound multiplicity in 12 C-nucleus collisions at 4.5 A GeV/c; the number of grey and shower particles taken together is termed as compound multiplicity. The result reveals that the compound multiplicity distributions become wider with increasing size of the struck nucleus. The value of the ratio <N c >/D(N c ) is seen to remain independant of the projectile mass. Moreover, the dispersion of the multiplicity distribution is found to increase linearly with increasing value of <N c >. Finally, the results also suggest that the value of inclination coefficient does not depend on the nature of the projectile.Résumé : Nous cherchons à analyser certaines propriétés intéressantes de la multiplicité composée dans des collisions impliquant des noyaux de 12 C à 4.5 A GeV/c. Nous appelons multiplicité composée l'ensemble des particules "grises" et de gerbe générées par la réaction. Les résultats montrent que la distribution de multiplicité composée s'élargit avec la grosseur du noyau cible. Le rapport <N c >/D(N c ) apparaît indépendante de la masse du projectile. De plus, la dispersion de la distribution de multiplicité augmente linéairement avec <N c >. Finalement, nous notons que la valeur du coefficient d'inclinaison ne dépend pas de la nature du projectile. [Traduit par la rédaction]

A Study of Pion-Nucleus Interactions in terms of Compound Particles

“…It can be seen from Figure 1 that as target size increases, the compound particle multiplicity distribution becomes broader and broader and the peak of the distribution shifts towards the higher value of . Other workers [15,17,18,20] have observed similar behaviour. We have tried to study the correlation between different particle multiplicities by using the following relation of the form:…”

“…The number of shower and grey particles taken together in an event was termed as compound particle multiplicity ( = + ). Many workers [13][14][15][16][17][18][19][20][21][22] analysed the data on nucleus-nucleus (AA) and hA collisions to investigate some interesting features of compound multiplicity distribution. But less attempt has been made to study the compound multiplicity distribution for pion-nucleus interactions data at 340 GeV/c.…”

Study of multiplicity correlations in nucleus–nucleus interactions at high energy

“…Some experimental studies [46][47][48][49][50][51][52][53] were done in order to investigate the multiplicity correlations of the type n c (n i ) in the heavy-ion interactions, where n i = n s , n g , n b , n h , over a wide range of incident energy for different projectiles. The behavior of the compound multiplicity correlation with various secondary particle multiplicities was not widely studied and was limited to few projectiles.…”

Evidence of Fractal Behavior of Pions and Protons in High Energy Interactions — An Experimental Investigation

“…As per our knowledge, a pioneering study of compound multiplicity has been done by Jurak et al 29 But so far only limited attempts have been made to work with this parameter. [30][31][32][33][34][35][36] In order to establish that the compound multiplicity is also an important parameter in the study of the reaction mechanism, one has to investigate other kinds of effect with this parameter, already observed for the case of shower multiplicity. In this paper, we present fractal aspects of multiparticle production in compound multiplicity distribution.…”