Universal QGP Hadronization Conditions at RHIC and LHC

TL;DR

This paper demonstrates that assuming chemical non-equilibrium during QGP hadronization accurately describes particle production at RHIC and LHC, revealing universal conditions across different collision centralities.

Contribution

It establishes the necessity of chemical non-equilibrium for modeling QGP hadronization and identifies universal hadronization conditions applicable to RHIC and LHC data.

Findings

Chemical non-equilibrium is essential for accurate modeling.

Reaction volume and strangeness saturation vary with centrality.

Universal QGP hadronization conditions are identified.

Abstract

We address the principles governing QGP hadronization and particle production in relativistic heavy-ion collisions. We argue that chemical non-equilibrium is required and show that once this condition is assumed a very good description of hadron production in collider RHIC and at LHC heavy ion experiments follows. We present results of our analysis as a function of centrality. Comparing most extreme experimental conditions we show that only the reaction volume and degree of strangeness phase space saturation change. We determine the universal QGP fireball hadronization conditions.