QGP modification to single inclusive jets in a calibrated transport model

Abstract

We study inclusive jet suppression and modifications in the quark-gluon plasma (QGP) with a transport-based model. The model includes vacuum-like parton shower evolution at high-virtuality, a linearized transport for jet-medium interactions, and a simple ansatz for the jet-induced hydrodynamic response of the medium. Model parameters are calibrated to nuclear modification factors for inclusive hadron $R_{AA}^h$ and single inclusive jets $R_{AA}^j$ with cone size $R=0.4$ in 0-10% central Au-Au and Pb-Pb collisions measured at the RHIC and LHC. The calibrated model consistently describes the cone-size dependent $R_{AA}^j(R)$, modifications to inclusive jet fragmentation functions and jet shape. We discuss the origin of these modifications by analyzing the medium-induced jet energy flow in this model and elucidate the interplay of hard parton evolution and jet-induced medium response. In particular, we demonstrate that the excess of soft hadrons at $p_T\sim 2$ GeV/$c$ in jet fragmentation function and jet shape at large $r=\sqrt{\Delta {\eta }^2+\Delta {\varphi }^2}$ are consequences of both soft medium-induced gluon radiation and jet-induced medium excitation.

48 pages, 20 figures, prepared for submission

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• Search for the elusive jet-induced diffusion wake in $Z/\gamma$-jets with 2D jet tomography in high-energy heavy-ion collisions
• Information field based global Bayesian inference of the jet transport coefficient
• Medium-induced radiative kernel with the Improved Opacity Expansion
• Measurements of azimuthal anisotropies of jet production in Pb+Pb collisions at $\sqrt{s_{NN}}=$ 5.02 TeV with the ATLAS detector
• Bayesian Inference analysis of jet quenching using inclusive jet and hadron suppression measurements
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• Searching for QGP droplets with high-$p_T$ hadrons and heavy flavor
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• Early evolution constrained by high-$p_T$ QGP tomography
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• Heavy-Flavour Jets in High-Energy Nuclear Collisions
• Applications of emulation and Bayesian methods in heavy-ion physics
• Hard jet substructure in a multistage approach
• Isolating perturbative QCD splittings in heavy-ion collisions
• Parton energy loss in a hard-soft factorized approach
• Longitudinal momentum fraction of heavy-flavor mesons in jets in high-energy nuclear collisions
• Multi-particle correlations, cumulants, and moments sensitive to fluctuations in rare-probe azimuthal anisotropy in heavy ion collisions
• Search for quasi-particle scattering in the quark-gluon plasma with jet splittings in pp and Pb$-$Pb collisions at $\sqrt{{\text{s}}_{\mathrm{NN}}}=5.02$ TeV
• Flavor and path-length dependence of jet quenching from inclusive jet and γ-jet suppression
• Statistical analysis of pQCD energy loss across system size, flavor, $\sqrt{s_{NN}}$, and $p_T$
• Nonperturbative Heavy-Flavor Transport Approach for Hot QCD Matter
• Partonic Critical Opalescence and Its Impact on the Jet Quenching Parameter $\hat{q}$
• Reexamining charm versus bottom quark energy loss inside a color-deconfined medium
• An improved linear Boltzmann transport model for hadron and jet suppression in ultrarelativistic heavy-ion collisions
• Emergence of thermal recoil jets in high-energy heavy-ion collisions
• Jet cone size dependence of single inclusive jet suppression due to jet quenching in Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV