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

Abstract

We report some results on the compound multiplicity distribution at 340 GeV/c − nucleus interactions. Compound multiplicity distribution is found to depend on the target size and the distribution becomes broader. The peak of the distribution shifts towards higher values of the compound particle multiplicity. Mean compound multiplicity is found to vary linearly with grey, heavy, and shower particle multiplicity. Correlations between different particle multiplicities have been studied in detail. Dispersion of compound multiplicity distributions and its ratio with the mean value is observed to obey a linear relationship with different particle multiplicities except for shower particles where dispersion is almost independent of shower particles. Mean normalized multiplicity has also been studied in terms of created charged particles.

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

“…Also, it can be observed that the values of the slope in the case of n c and n s , n g correlations are almost of the same order for heavy-ion interactions. Moreover, by comparing the results of the present work with previous reported ones, 27,[47][48][49]50,53,54 it may be observed that the dependence of n c on n b and n h is strong in case of heavy-ion interactions, however, this dependence becomes weak for pion [47][48][49] and proton-nucleus collisions. 50,54 This means that the degree of disintegration of target nuclei depends on the number of compound particles n c (shower n s and grey n g ) produced in the events for heavy interactions or nucleusnucleus interactions, but this dependence is not seen for the case of hadron-emulsion interactions.…”

“…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.…”

Scaling of multiplicity distribution in high energy hadron-nucleus interactions

“…Thus the analysis is based at three energies i.e., 50, 340 and 400 GeV. Other details may be found in our earlier publications [10,18].…”

“…The study on compound particle multiplicity was first done by Jurak and Linscheid [9]. We studied some aspects of compound multiplicity distribution in our earlier publication [10], this paper is in continuation to that [10]. Many workers [12][13][14][15][16][17][18][19][20] have studied various characteristics of compound multiplicity distributions for high energy interactions.…”

Characteristics of Particles Produced in Hadron-Nucleus Collisions

“…The high energy hadron-nucleus (hA) collisions have been studied by several workers [1][2][3][4][5][6][7]. An important feature noticed in these interactions is that the nucleus plays the role of the target for the incident hadron as well as the newly produced hadronic systems.…”