Non-perturbative phenomena in jet modification

TL;DR

This paper explores non-perturbative effects in jet-medium interactions in heavy-ion collisions, using lattice simulations to improve understanding of jet quenching and momentum broadening in QCD.

Contribution

It introduces a method to match lattice Electrostatic QCD results to full QCD, providing non-perturbative insights into jet modification phenomena.

Findings

Determined the momentum broadening kernel in impact parameter and momentum space.

Showed how to incorporate non-perturbative results into phenomenological models.

Enhanced understanding of jet quenching mechanisms in heavy-ion collisions.

Abstract

The interaction of a jet with the medium created in heavy-ion collisions is not yet fully understood from a QCD perspective. This is mainly due to the non-perturbative nature of this interaction which affects both transverse jet momentum broadening and jet quenching. We discuss how lattice simulations of Electrostatic QCD, can be matched to full, four dimensional QCD, to determine non-perturbative contributions to the momentum broadening kernel. We determine the momentum broadening kernel in impact parameter and momentum space and finally show how these results can be used in phenomenological calculations of in-medium splitting rates.