Dijet p_T and azimuthal correlations in Au+Au and p+p collisions with the sPHENIX detector

Measurements of dijet kinematic correlations in A+A collisions provide insight into the mechanisms of jet quenching by the QGP produced in heavy ion collisions. The sensitivity to medium-induced modifications such as dijet p_T asymmetries and angular decorrelations is expected to be enhanced at RHIC, due to the narrower initial kinematic correlations, compared to those at the LHC. This talk presents measurements of dijet p_T imbalance and azimuthal correlations in Au+Au collisions at √s_NN = 200 GeV and compares them to dijet correlations observed in p+p collisions at √s = 200 GeV, using the full sPHENIX calorimeter system. These results provide an initial look at the Au+Au collision data recorded during the 2024 RHIC run, and constitute the first such comparison of dijet p_T asymmetries in Au+Au and p+p collisions at mid-rapidity using a complete electromagnetic and hadronic calorimeter system.