Speaker
Description
The Energy-Energy Correlators (EEC), initially developed in $e^+e^-$ collisions, provide a powerful method for probing the angular structure of energy flows within jets. In hadronic collisions with transverse polarization, the polarized EEC (pEEC) offers unique sensitivities to parton spin-orbit correlations and spin-dependent transverse-momentum-dependent (TMD) effects. In this presentation, we will present preliminary results of the first measurement of polarized EEC in jets at the STAR experiment, utilizing data from transversely polarized proton-proton ($p^{\uparrow} + p$) collisions at both $\sqrt{s} = 200$ and 510 GeV. This analysis includes both 1-point and 2-point EEC measurements for $\pi^+$ and $\pi^-$ in jets, providing new insights into the spin-dependent dynamics of final state fragmentations.
