JEWEL - a Monte Carlo Model for Jet Quenching

Abstract

The Monte Carlo model JEWEL 1.0 (Jet Evolution With Energy Loss) simulates parton shower evolution in the presence of a dense QCD medium. In its current form medium interactions are modelled as elastic scattering based on perturbative matrix elements and a simple prescription for medium induced gluon radiation. The parton shower is interfaced with a hadronisation model. In the absence of medium effects JEWEL is shown to reproduce jet measurements at LEP. The collisional energy loss is consistent with analytic calculations, but with JEWEL we can go a step further and characterise also jet-induced modifications of the medium. Elastic and inelastic medium interactions are shown to lead to distinctive modifications of the jet fragmentation pattern, which should allow to experimentally distinguish between collisional and radiative energy loss mechanisms. In these proceedings the main JEWEL results are summarised and a Monte Carlo algorithm is outlined that allows to include the Landau-Pomerantschuk-Migdal effect in probabilistic frameworks.

Contribution to the 4th international workshop High-pT physics at LHC 09, February 4-7, 2009, Prague, Czech Republic, submitted to PoS

References in corpus (6)

• PYTHIA 6.4 Physics and Manual
• Collisional Energy Loss in a Finite Size QCD Matter
• Collisional energy loss of a fast heavy quark in a quark-gluon plasma
• A local Monte Carlo implementation of the non-abelian Landau-Pomerantschuk-Migdal effect
• Distorting the Hump-backed Plateau of Jets with Dense QCD Matter
• QCD Evolution of Jets in the Quark-Gluon Plasma