KNO scaling in processes of electron-positron annihilation to hadrons

TL;DR

This paper investigates KNO scaling in electron-positron annihilation to hadrons across a range of energies, demonstrating that both experimental and simulated data follow the same distribution, which is explained by the Lund string model.

Contribution

It shows that KNO scaling arises from quark string hadronization dynamics in the Lund string model, supported by comparison of experimental and Monte Carlo data.

Findings

Experimental and simulated data follow the same KNO distribution.

KNO scaling is explained by Lund string hadronization.

Data consistency across energies supports the model.

Abstract

The charged particles multiplicity distribution in the KNO form is discussed in processes of $e^+e^-$ annihilation at energies $\sqrt{s}$ 14 -- 206.2 GeV. The experimental data are compared to data, obtained with Monte Carlo simulation in PYTHIA in the Lund quark string model. It is shown, that both experimental and simulated data are described by the same distribution function in the KNO form. It is shown, that the KNO scaling is consequence of quark string hadronization dynamics in the Lund string model.