Recent Quarkonia Studies from the PHENIX Experiment

TL;DR

This paper discusses recent measurements of quarkonia suppression at forward rapidity in heavy ion collisions, providing insights into medium properties and initial state effects using PHENIX experiment data.

Contribution

It presents new quarkonia suppression data at forward rapidity from PHENIX, enhancing understanding of initial state effects and regeneration contributions in heavy ion collisions.

Findings

Stronger suppression of forward J/ψ compared to mid-rapidity

Indications of smaller regenerated quarkonia contribution at forward rapidity

Insights into medium density and temperature effects

Abstract

Quarkonia suppression in nucleus-nucleus collisions is a powerful tool to probe the density and temperature of the medium created in heavy ion collisions. Forward rapidity measurements in $p(d)$+Au collisions are essential to understand how quarkonia states are affected by initial state effects, formation time, and local particle multiplicity. Earlier measurements in Au+Au collisions showed a stronger suppression of forward $J/\psi$ compared to mid-rapidity results, indicating the possibility of a smaller contribution of regenerated quarkonia states at forward rapidity. These proceedings report on the latest quarkonia studies performed by the PHENIX collaboration in the rapidity range $1.2<|y|<2.2$.