Measurement of inclusive jet production in Au+Au collisions at $\sqrt{s_\mathrm{NN}}=200$ GeV

Jets, collimated sprays of particles originating from high-energy parton scatterings, play a central role in exploring the properties of the Quark-Gluon Plasma (QGP) created in heavy-ion collisions. Their modification in the QGP, commonly referred to as jet quenching, provides insight into parton energy loss mechanisms in strongly interacting matter.

We present new measurements of inclusive jet production in central ($0$--$10\%$) and peripheral ($60$--$80\%$) Au+Au collisions at $\sqrt{s_{\mathrm{NN}}} = 200$~GeV, recorded by the STAR Collaboration at RHIC. The data were collected during the 2014 run with an integrated luminosity of $5.2~\mathrm{nb}^{-1}$, using a High Tower trigger that required at least $4.2$~GeV of energy deposited in a single tower of the Barrel Electromagnetic Calorimeter (BEMC).

Jets are reconstructed with the anti-$k_{\mathrm{T}}$ algorithm by combining charged-particle tracks from the Time Projection Chamber and neutral energy from the BEMC, with resolution parameters $R = 0.2$, $0.3$, and $0.4$. To reduce combinatorial background in the heavy-ion environment, a high-$p_{\mathrm{T}}$ leading constituent is required within each jet. Bayesian unfolding techniques are applied to correct for background fluctuations and detector effects. These results extend the kinematic reach compared to earlier measurements with charged-particle jets, providing new opportunities to compare with theoretical predictions and with measurements from LHC experiments, contributing to a more comprehensive understanding of jet quenching across different collision energies.