Implementing the LPM effect in a parton cascade model

TL;DR

This paper introduces a probabilistic implementation of the LPM effect into a parton cascade model to better simulate jet suppression phenomena in a quark-gluon plasma, validated against analytical calculations.

Contribution

The paper presents the first probabilistic implementation of the LPM effect within a PCM, enhancing the model's accuracy in describing in-medium jet modifications.

Findings

Implementation aligns with analytical BDMPS-Z calculations

Enables detailed simulation of jet energy loss in QCD media

Improves understanding of quantum interference effects in parton showers

Abstract

Parton Cascade Models (PCM), which describe the full time-evolution of a system of quarks and gluons using pQCD interactions are ideally suited for the description of jet production, including the emission, evolution and energy-loss of the full parton shower in a hot and dense QCD medium. The Landau-Pomeranchuk-Migdal (LPM) effect, the quantum interference of parton wave functions due to repeated scatterings against the background medium, is likely the dominant in-medium effect affecting jet suppression. We have implemented a probabilistic implementation of the LPM effect within the PCM which can be validated against previously derived analytical calculations by Baier et al (BDMPS-Z). Presented at the 6th International Conference on Physics and Astrophysics of Quark Gluon Plasma (ICPAQGP 2010).