Speaker
Description
Neutral mesons such as pi0 and eta are excellent probes for studying various aspects of the QGP.
Their production at low pT provides insights into hadronization and the collective dynamics of the medium evolution.
On the other hand, at high-pT, the energy loss mechanisms dominate, making these mesons unique probes that span the overall response of the medium.
The sPHENIX calorimeter system allows for high-resolution measurements of photons, electrons, jets, and hadrons over a wide rapidity range. The pi0 and eta mesons are reconstructed via their decay into two photons using the electromagnetic calorimeter.
This talk presents the first results on neutral mesons with the sPHENIX detector in p+p collisions at sqrt(s)=200 GeV, based on data collected in Run-24. This large dataset has sampled an integrated luminosity of over 100 pb-1, providing approximately 10 times higher statistics than the previous PHENIX Run-15 p+p data. This significant increase offers unique opportunities to measure hadrons up to very high pT at RHIC.
The results are discussed in terms of bulk production and verification of the EM scale of the sPHENIX EMCal detector as a function of pT.
| Category | Experiment |
|---|---|
| Collaboration (if applicable) | sPHENIX |
