Quarkonia Production in Hot and Cold Matters

TL;DR

This paper reviews the current understanding of quarkonia suppression in hot quark-gluon plasma and cold nuclear matter effects, analyzing experimental results from SPS and RHIC and discussing future measurements for deeper insights.

Contribution

It provides a comprehensive review of experimental findings on quarkonia suppression and discusses potential interpretations and future measurements to clarify underlying mechanisms.

Findings

Suppression observed beyond nuclear effects at SPS and RHIC

Rapidity dependence of suppression remains complex to interpret

New measurements are needed for clearer insights

Abstract

Quarkonia were predicted to be suppressed in the "hot" deconfined matter known as the Quark Gluon Plasma (QGP), but they were also seen to suffer from "cold" nuclear matter effects (parton shadowing, nuclear absorption...). Both at SPS and RHIC, suppression beyond nuclear effects was observed, but the rapidity dependence of the RHIC result is not easy to interpret. I review here the current status of these results, their possible interpretations and the new measurements that could provide insights on quarkonia suppression. Some of them were presented at this conference.