Strangeness fluctuations and MEMO production at FAIR

TL;DR

This paper uses a coupled transport-hydrodynamics model to predict the production and distribution of multi-strange objects in Pb+Pb collisions at FAIR, highlighting the regime's suitability for discovering MEMOs due to high baryon density and strangeness fluctuations.

Contribution

It introduces a novel combined modeling approach to predict yields and distributions of multi-strange objects at FAIR, emphasizing the importance of local strangeness separation.

Findings

Predicted yields and distributions of multi-strange objects at FAIR.

Identified high baryon density as optimal for MEMO searches.

Found enhanced MEMO production due to local strangeness separation.

Abstract

We apply a coupled transport-hydrodynamics model to discuss the production of multi-strange meta-stable objects in Pb+Pb reactions at the FAIR facility. In addition to making predictions for yields of these particles we are able to calculate particle dependent rapidity and momentum distributions. We argue that the FAIR energy regime is the optimal place to search for multi-strange baryonic object (due to the high baryon density, favouring a distillation of strangeness). Additionally, we show results for strangeness and baryon density fluctuations. Using the UrQMD model we calculate the strangeness seperation in phase space which might lead to an enhanced production of MEMOs compared to models that assume global thermalization.