Hyperons from Bi+Bi collisions at MPD-NICA: Preliminary analysis of production at generation, simulation and reconstruction level

TL;DR

This paper discusses the analysis of hyperon production in Bi+Bi collisions at MPD-NICA, focusing on the polarization differences of Lambda particles to understand the matter's properties and test a two-zone production model.

Contribution

It introduces a method to test the core-corona production model of hyperons in heavy-ion collisions at MPD-NICA.

Findings

Preliminary analysis of hyperon production at simulation and reconstruction levels.

Potential to distinguish core and corona contributions to hyperon polarization.

Framework for testing strangeness production models in heavy-ion collisions.

Abstract

An important observable to understand the properties of the matter produced in heavy-ion collisions is its strangeness content. Recent experimental results show that in semi-central collisions, the $\Lambda$ and $\bar{\Lambda}$ global polarization show differences that increase at low energies. This behaviour has been described using a model where these particles may be produced from two distinct density zones in the collision region: the core and the corona where QGP processes and p + p like reactions, respectively, are mainly at work. Using this idea, the polarization can be influenced by the relative abundance of these particles coming from either regions. In this work we show how to test this model in the MPD experiment.