Speaker
Description
The sPHENIX detector at RHIC sampled with jet triggers $107\,\mathrm{pb}^{-1}$ of p+p collisions at $\sqrt{s}=200\,\mathrm{GeV}$ during the 2024 run, providing the first mid-rapidity hadronic calorimetry at RHIC for direct measurements of neutral-hadron contributions to jet energy. This poster reports the measurement of the inclusive jet production cross section as a function of transverse momentum using jets reconstructed with the anti-$k_{\mathrm{T}}$ algorithm with distance parameters $R = 0.2$--$0.6$ in the kinematic range $|\eta|<0.7$ and $p_{\mathrm{T}} > 15\,\mathrm{GeV}$. The jet energy scale (JES) calibration corrects systematic shifts arising from the non-compensating calorimeter response using \textsc{pythia}~8 Monte Carlo simulations with GEANT4 detector response. The jet energy resolution (JER) characterizes the finite precision of the detector energy measurement. The measured cross section is corrected for background rejection and trigger efficiency, and unfolded to the particle level using iterative Bayesian unfolding to account for detector response effects and the energy smearing from finite jet energy resolution. The unfolded cross section establishes a precision baseline for jet suppression measurements in the upcoming sPHENIX Au+Au program.
| Is this an experimental talk? | Yes |
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| Is this on behalf of a collaboration? | Yes |
| Which collaboration? | sPHENIX Collaboration |
| Are you willing to present as a poster if it is not selected for oral presentation? | Yes |