Speaker
Description
The sPHENIX experiment is a next-generation collider detector at RHIC designed for rare jet and heavy flavor probes of the Quark-Gluon Plasma. The experiment includes a large-acceptance, granular electromagnetic calorimeter (EMCal) and very high-rate data acquisition plus trigger system. In RHIC Run-24, sPHENIX sampled 107/pb of p+p collision data at 200 GeV using an efficient high-p$_T$ photon trigger. This dataset represents a nearly-tenfold increase of the luminosity times acceptance compared to previous EMCal-based datasets for this collision energy at RHIC. This talk presents measurements of neutral pion and $\eta$ meson production cross-sections in p+p collisions over a significantly extended kinematic range compared to previous measurements. Decay photons from the $\eta$ meson remain well-separated in the granular EMCal out to very high p$_T$. These measurements provide an important pQCD baseline for future measurements of single hadron suppression, particularly their dependence at very high p$_T$, in future sPHENIX Au+Au data-taking at RHIC.
| Category | Experiment |
|---|---|
| Collaboration (if applicable) | sPHENIX Collaboration |
