Heavy quark state production in Pb-Pb collisions at $\sqrt{s_{NN}}$=5.02 TeV

TL;DR

This paper estimates differential rapidity cross sections for various heavy quarkonium states produced in Pb-Pb collisions at 5.02 TeV, incorporating hybrid state theory to extend previous lower-energy studies.

Contribution

It introduces the use of mixed heavy quark hybrid theory for predicting quarkonium production in high-energy Pb-Pb collisions at 5.02 TeV, extending prior work at lower energies.

Findings

Predicted differential rapidity cross sections for $J/ extPsi$, $S$, $S$, $S$, and $S$ states.

Inclusion of hybrid charmonium and bottomonium states as approximately 50% standard and 50% hybrid.

Extension of previous heavy quark state production models to higher collision energy.

Abstract

We estimate differential rapidity cross sections for $J/\Psi$, $\Psi(2S)$, $\Upsilon(1S)$, $\Upsilon(2S)$, and $\Upsilon(3S)$ production via Pb-Pb collisions at proton-proton energy $\equiv \sqrt{s_{pp}}$ =5.02 TeV. For the $\Psi(2S)$, $\Upsilon(3S)$ states we use the mixed heavy quark hyrid theory, with these states being approximately 50\% standard and 50\% hybrid charmonium, bottomonium meson states. This is an extension of previous work on heavy quark state production via Cu-Cu and Au-Au collisions at $\sqrt{s_{pp}}$=200 GeV.