Unified description of hadron yield ratios from dynamical core-corona initialization

TL;DR

This paper introduces a dynamical core-corona framework to describe QGP formation in high-energy nuclear collisions, analyzing hadron yield ratios and their scaling with multiplicity, revealing partial QGP formation even in p+p events.

Contribution

It presents a novel phenomenological framework for modeling QGP formation, connecting hadron yield ratios with collision multiplicity and providing insights into QGP emergence in small systems.

Findings

QGP fluids form partly at average multiplicity in p+p collisions.

Hadron yield ratios exhibit multiplicity scaling consistent with experimental data.

The framework explains the observed features of hadron production in high-energy collisions.

Abstract

We develop the dynamical core-corona initialization framework as a phenomenological description of the formation of quark gluon plasma (QGP) fluids in high-energy nuclear collisions. Using this framework, we investigate the fraction of the fluidized energy to the total energy and strange hadron yield ratios as functions of multiplicity and scrutinize the multiplicity scaling of hadron yield ratios recently reported by the ALICE Collaboration. Our results strongly indicate that the QGP fluids are partly formed even at the averaged multiplicity for nonsingle diffractive p+p events.