Speaker
Description
Quarkonium states produced in heavy-ion collisions serve as essential probes when studying the Quark-Gluon Plasma (QGP). In particular, suppression of quarkonium production in the QGP medium due to the color screening effect has been proposed as a direct signature of the QGP formation. However, there are also other phenomena, such as cold nuclear matter effects and regeneration, which can also modify the quarkonium yields measured in heavy-ion collisions. All of these effects need to be carefully taken into account when interpreting the observed suppression.
STAR is one of the running heavy-ion experiments in the world and it provides a large acceptance coverage to study quarkonium states at mid-rapidity. In this presentation, we will present the latest results of quarkonium measurements from the STAR experiment including the production cross sections of $J/\psi$ and $\Upsilon$ mesons in $\sqrt{s}$ = 200 GeV and 500 GeV p+p collisions, $J/\psi$ polarization in $\sqrt{s}$ = 200 GeV p+p collisions, and nuclear modification factors of $J/\psi$ and $\Upsilon$ mesons in $\sqrt{s_{NN}}$ = 200 GeV p+Au and Au+Au collisions.
| Track | Heavy Flavour |
|---|---|
| Collaboration name | STAR Collaboration |
