Resonances as a possible observable of hot and dense nuclear matter

TL;DR

This paper explores how baryonic and mesonic resonances can serve as observable probes of hot and dense nuclear matter in relativistic heavy ion collisions, providing insights into phase transitions.

Contribution

It introduces an analysis of resonance reconstruction probabilities across different densities and energies, linking resonance decay products to properties of dense nuclear matter.

Findings

Reconstructable resonance percentage varies with density.

Resonance signals can indicate phase transition conditions.

Analysis covers energies from 30 AGeV to 200 AGeV.

Abstract

One of the most fundamental questions in the field of relativistic heavy ion physics is how to reach and explore densities which are needed to cross the chiral and/or the deconfinement phase transition. In this analysis we investigate the information we can gather by analyzing baryonic and mesonic resonances on the hot and dense phase in such nuclear reactions. The decay products of these resonances carry information on the resonances properties at the space time point of their decay. We especially investigate the percentage of reconstructable resonances as a function of density for heavy ion collisions in the energy range between $E_{lab}$ = 30 AGeV and $\sqrt{s}$ = 200 AGeV, the energy domain between the future FAIR facility and the present RHIC collider.