Gluon dominance model

Abstract

Abstract. Study of multi-particle production has longer than the semi-centennial history. As it is known, with the growth of energy of accelerators, the new channels of reaction are being opened, the average number of secondary particles is increasing. Physicists are able to accelerate stable particles, such as electrons, positrons, protons, antiprotons, ions (both light and heavy). Rarely, they accelerate kaons and pions. The obtained experimental material stimulates the development of the different theoretical approaches. Since appearance of the modern theory of strong interactions, quantum chromodynamics (QCD), our understanding of multi-particle production is advanced significantly. The language of quarks and gluons is basic one at the explanation of observable phenomena. This review is devoted to the history of appearance and the following development of the gluon dominance model. This model is based on the pQCD and the phenomenological description of the hadronization stage. It permits to describe multiplicity distributions both for lepton and hadron interactions, especially in the high multiplicity region.

A look at hadronization via high multiplicity

“…The replacement of the hadronization mechanism at transition from the annihilation of leptons to the hadron and nuclei interactions is perfectly illustrated by B. Muller [10]. GDM indicates a logarithmic growth with the energy of n h g , which at the top energy of the ISR accelerator, reaches the value 3.23 ± 0.14 [9].…”