Speaker
Description
Abstract: From Quark to J/ψ: Probing the Strong Interaction Realm at RHIC-STAR
Quantum Chromodynamics (QCD) serves as the foundational theory of the strong interaction, governing the behavior of quarks and gluons. The production of J/ψ mesons provides a unique opportunity to explore both perturbative and non-perturbative regimes of QCD, while also serving as a sensitive probe to study the properties of hot and dense quark-gluon plasma (QGP) created in relativistic heavy-ion collisions. In this talk, we present the latest experimental results from the RHIC-STAR collaboration on J/ψ production in proton-proton collisions, with a focus on the novel measurements of J/ψ energy correlators, which shed light on the underlying partonic dynamics. Furthermore, we discuss the role of J/ψ spin observables in heavy-ion collisions as a tool to investigate the in-medium effects and the properties of the QGP. These measurements provide critical insights into the evolution of the strongly interacting matter from initial quark-gluon interactions to the formation of hadronic states.
