Charmonium interaction in nuclear matter at FAIR

TL;DR

This paper investigates how $J/c$ mesons dissociate in proton-nucleus collisions at FAIR energies, revealing distinct suppression patterns that can clarify their interactions within nuclear matter.

Contribution

It provides the first detailed predictions of $J/c$ suppression patterns at FAIR energies, highlighting the potential to study charmonium interactions in nuclear medium.

Findings

Different absorption scenarios lead to distinct suppression patterns.

FAIR energies are ideal for probing $J/c$ interactions in nuclear matter.

Results can help interpret future experimental data at FAIR.

Abstract

We have studied the dissociation of $J/\psi$-mesons in low energy proton-nucleus ($p+A$) collisions in the energy range of the future SIS100 accelerator at Facility for Anti-proton and Ion Research (FAIR). According to the results of our calculations, various scenarios of $J/\psi$ absorption in nuclear matter show very distinct suppression patterns in the kinematic regime to be probed at FAIR. This suggests that the SIS100 energies are particularly suited to shed light on the issue of interaction of $J/\psi$ resonance in nuclear medium.