# PHENIX results on system size dependence of J/$\psi$ nuclear modification in $p$,$~d$, $^{3}$He+A collisions at $\sqrt{s_{NN}}$=200 GeV

## TL;DR

This paper reports on PHENIX measurements of J/ψ nuclear modification factors across different small collision systems at 200 GeV, providing insights into quarkonia dissociation in various nuclear media.

## Contribution

It presents new experimental data on J/ψ suppression in p+Al, p+Au, and 3He+Au collisions at 200 GeV, expanding understanding of system size effects.

## Key findings

- J/ψ suppression varies with system size and rapidity.
- Data suggests different dissociation mechanisms in small systems.
- Results contribute to understanding quarkonia behavior in nuclear matter.

## Abstract

The dissociation of quarkonia in the medium created in heavy ion collisions is still one of the most debated topics in the heavy ion community. Progress in understanding the effect relies on a broad range of measurements in collisions with different nuclear sizes, covering a broad rapidity range. This presentation will report the $J/\psi$ measurements performed by the PHENIX collaboration at forward and backward rapidities of 1.2 $< |y| <$ 2.2 in $p$+Al, $p$+Au, and $^3$He+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV, and the corresponding nuclear modification factors.