Self-consistent analysis of hadron production in $pp$ and $AA$ collisions at mid-rapidity

TL;DR

This paper reviews a self-consistent method for analyzing hadron production in proton-proton and nucleus-nucleus collisions, successfully describing various spectra and yield ratios across a wide energy range.

Contribution

It introduces a modified approach incorporating quark-gluon dynamics to accurately model hadron spectra in $pp$ and $AA$ collisions at mid-rapidity.

Findings

Good agreement with experimental data on proton/anti-proton ratios.

Successful description of pion transverse momentum spectra.

Applicable across energies from a few GeV to TeV.

Abstract

The self-consistent approach based on similarity of inclusive spectra of hadrons produced in $pp$ and $AA$ collisions is reviewed. This approach allows us to describe rather well the ratio of proton to anti-proton yields in $AA$ collisions as a function of the initial energy at a wide range from a few GeV to a few TeV. We suggest its modification due to the quark-gluon dynamics to describe the inclusive spectra of hadrons produced in $pp$ collision as a function of the transverse momentum $p_t$ at mid-rapidity. The extension of this approach to analyze the pion $p_t$-spectra produced in $AA$ collision at high and middle energies and mid-rapidity is given. The satisfactory description of experimental data on these spectra in $pp$ and $AA$ collisions within the offered approach is shown.