On Multiparticle Production in Very High Energy Scattering

Abstract

A phenomenological model of particle production and hadronisation in high energy collisions is formulated using Dirac fields in Yukawa-like interaction and the resulting stochastic equation is solved numerically. Different initial conditions are used to compare particle- particle (ψ ψ) and particle-antiparticle (ψ* ψ) interactions. It is shown that in this simplified view, there is a clear difference between the final multiplicity distributions resulting from the two initial conditions. To model the restricted phase space (limited pseudorapidity) measurements in experiment, a “loss” function is also proposed to account for the undetected particles close to the beam line.

Oscillations in Modified Combinants of Hadronic Multiplicity Distributions

“…One way to circumvent this problem is to employ branching models derived from perturbation theories as the resulting stochastic equations are independent of the coupling [6]. We use one such branching model with the interaction term λψφψ for our daughter distribution [7]. There are three fundamental processes possible dictated by the same vertex: ψ Bremsstrahlung, ψ Bremsstrahlung and ψψ pair production.…”