Bottomonia suppression in heavy-ion collisions

TL;DR

This paper investigates how medium modifications of bottomonia properties affect their suppression in heavy-ion collisions, emphasizing the small role of regeneration and the importance of medium effects in explaining experimental observations at RHIC and LHC.

Contribution

It introduces a two-component model incorporating medium modifications to better understand bottomonia suppression in heavy-ion collisions.

Findings

Regeneration contribution to bottomonia production is small.

Medium effects help explain observed suppression patterns.

Model aligns with experimental data from RHIC and LHC.

Abstract

Using the two-component model that includes both initial production from nucleon-nucleon hard scattering and regeneration from produced quark-gluon plasma (QGP), we study the effect of medium modifications of the binding energies and radii of bottomonia on their production in heavy-ion collisions. We find that the contribution to bottomonia production from regeneration is small and the inclusion of medium effects is generally helpful for understanding the observed suppression of bottomonia production in experiments carried out at both the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC).