Transverse Single-Spin Asymmetries in Neutral Meson Production with sPHENIX

The sPHENIX experiment is a new detector at the Relativistic Heavy Ion Collider at Brookhaven National Laboratory. Designed for precision measurements of jet and heavy-flavor observables, sPHENIX provides precision vertexing, tracking, and electromagnetic and hadronic calorimetry in the central pseudorapidity region |η| < 1.1 with full azimuthal coverage. In addition to measurements of the quark-gluon plasma produced in heavy ion collisions, sPHENIX also enables new and improved measurements in cold QCD. This talk will detail the status of an analysis of transverse single-spin asymmetries in π⁰ and η meson production using transversely polarized p+p collision data taken by sPHENIX in 2024. These asymmetries are sensitive to twist-3 multi-parton correlators, which are linked to the Sivers TMD PDF.