Some notes about multiplicity distribution at hadron colliders

TL;DR

This paper explores different mechanisms influencing high multiplicity events at hadron colliders, comparing QCD predictions with alternative models like phase transitions, to understand the tail behavior of multiplicity distributions.

Contribution

It introduces a comparative analysis of Pomeron, DIS, LAA mechanisms and phase transition models within pQCD to explain VHM distributions at hadron colliders.

Findings

Phase transition models predict enhancement in VHM tail.

Comparison shows differences between QCD and alternative mechanisms.

Soft pion condensation offers an alternative explanation for high multiplicity events.

Abstract

The idea that the hard processes are dominate at the very high multiplicity (VHM) final states creation is considered. For this purpose quantitative realization of the Pomeron, DIS and large-angle annihilation (LAA) mechanism combinations are considered in the pQCD frame. The phase transition (condensation) in the soft pions system is described as the alternative to above mechanism. It is shown that in compared to QCD prediction last one predicts enhancement in the VHM distribution tail.