ICHEP 2024

Recent J/ψ measurements at the PHENIX experiment

19 Jul 2024, 17:02

17m

Club B

Parallel session talk 07. Heavy Ions Heavy Ions

Speaker

Xuan Li (Los Alamos National Laboratory)

Description

Quarkonium is an ideal probe to explore the properties of QCD. Unlike Large Hadron Collider (LHC) measurements, quarkonium production at the Relativistic Heavy Ion Collider (RHIC) has different production mechanisms, can access different kinematic phase space and may experience different medium densities/temperatures. The PHENIX experiment has collected a large $J/\psi \to {\mu }^{+}{\mu }^{-}$ data set within its unique pseudorapidity region of $1.2<|\eta |<2.2$ in $p+p$, $p+A$ and $A+A$ collisions at $\sqrt{s}$ = 200 GeV. We will present the latest results of 1) event multiplicity dependent forward $J/\psi$ and $\psi (2S)$ production in $p+p$ collisions; and 2) forward $J/\psi$ flow in Au+Au collisions. Comparison with other RHIC and LHC measurements and latest theoretical calculations will be discussed. These PHENIX results will help improving the understanding of charmonium production mechanisms, the role of multi-patron interactions and the charmonium regeneration in the QGP.

Presentation materials

ICHEP24_XuanLi_v2.pdf