A Comparative Study between the Negative Binomial Distribution and Generalized Multiplicity Distribution in High-Energy Hadron-Nucleus Interactions

The multiplicity distribution of secondary charged particles emitted in 350 GeV/c π--AgBr interactions was observed in different pseudo-rapidity windows (1.0 ≤ ηc ≤ 5.0). The data shows good agreement with the negative binomial distribution (NBD) as well as with the generalized multiplicity distribution (GMD). The value of the parameter k' of GMD is found to be insignificant in all the cases. It signifies the fact that the starting of the branching process is dominated by the quarks (q → qg), not by the gluons (g → gg).