First Measurement of Inclusive Jet Transverse Single Spin Asymmetries at sPHENIX

The sPHENIX experiment at RHIC-BNL utilizes electromagnetic and hadronic calorimeters to enable full jet reconstruction at midrapidity, providing new opportunities to probe the nucleon's internal structure. Of particular interest is the measurement of transverse single-spin asymmetries (TSSAs) for inclusive jets in transversely polarized proton-proton collisions. Inclusive jet TSSAs are sensitive to initial-state quark-gluon correlations, offering insight into spin-momentum dynamics and the Sivers effect. In 2024, sPHENIX collected 107 ​​pb-1 transversely polarized proton-proton collision data at √s = 200 GeV, enabling the first extraction of inclusive jet asymmetries with this detector. This talk will present the status of the measurement and its potential to constrain spin-dependent parton dynamics.