Speaker
Description
sPHENIX is a next-generation collider detector at RHIC, featuring large-acceptance calorimeters and precision tracking systems. The detector was successfully commissioned and collected physics data in both p+p and Au+Au collisions in 2024. Full-scale Au+Au data taking is currently in progress in 2025.
sPHENIX has excellent capabilities for measuring bulk particle production—such as the charged-particle pseudorapidity density (dNch/dη) and transverse energy density (dET/dη), both of which will be published soon (arXiv:arXiv:2504.02240, arXiv:2504.02242).
It also has the ability to measure collective behavior in both large and small collision systems, supported by forward detectors including the sPHENIX Event Plane Detector (sEPD). These measurements provide important constraints on the initial-state conditions and bulk properties of collisions at RHIC energies.
This talk presents measurements of dNch/dη, dET/dη, and azimuthal anisotropy coefficients in Au+Au collisions from sPHENIX. It also includes an overview of ongoing efforts to study collective behavior in small collision systems using the long-range two-particle correlation method.
