Radiative parton energy loss in expanding quark-gluon plasma with magnetic monopoles

TL;DR

This paper investigates how magnetic monopoles in an expanding quark-gluon plasma influence radiative parton energy loss, revealing that monopoles can significantly enhance energy loss without causing surface dominance, contrary to prior beliefs.

Contribution

It introduces the effect of magnetic monopoles on parton energy loss in an expanding quark-gluon plasma, based on lattice simulation data, highlighting their impact in high-energy collisions.

Findings

Magnetic monopoles can substantially increase parton energy loss.

Monopoles do not cause surface-dominated energy loss as previously thought.

Enhanced energy loss is relevant for RHIC and LHC collision conditions.

Abstract

We study radiative parton energy loss in an expanding quark-gluon plasma with magnetic monopoles. We find that for realistic number density of thermal monopoles obtained in lattice simulations parton rescatterings on monopoles can considerably enhance energy loss for plasma produced in $AA$ collisions at RHIC and LHC energies. However, contrary to previous expectations, monopoles do not lead to the surface dominance of energy loss.