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A perturbative framework for jet quenching

Zapp, K.C.; Krauss, F.; Wiedemann, U.A.

A perturbative framework for jet quenching Thumbnail


K.C. Zapp

U.A. Wiedemann


We present a conceptually new framework for describing jet evolution in the dense medium produced in ultra-relativistic nucleus-nucleus collisions using perturbative QCD and its implementation into the Monte Carlo event generator Jewel. The rescattering of hard partons in the medium is modelled by infrared continued pQCD matrix elements supplemented with parton showers. The latter approximate higher order real-emission matrix elements and thus generate medium-induced gluon emissions. The interplay between different emissions is governed by their formation times. The destructive interference between subsequent scattering processes, the non-Abelian version of the Landau-Pomeranchuk-Migdal effect, is also taken into account. In this way the complete radiation pattern is consistently treated in a uniform way. Results obtained within this minimal and theoretically well constrained framework are compared with a variety of experimental data susceptible to jet-quenching effects at both RHIC and the LHC. Overall, a good agreement between data and simulation is found. This new framework also allows to identify and quantify the dominant uncertainties in the simulation, and we show some relevant examples for this.


Zapp, K., Krauss, F., & Wiedemann, U. (2013). A perturbative framework for jet quenching. Journal of High Energy Physics, 2013(3), Article 80.

Journal Article Type Article
Acceptance Date Feb 21, 2013
Online Publication Date Mar 13, 2013
Publication Date Mar 13, 2013
Deposit Date Mar 5, 2013
Publicly Available Date Jun 30, 2015
Journal Journal of High Energy Physics
Print ISSN 1126-6708
Publisher Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Peer Reviewed Peer Reviewed
Volume 2013
Issue 3
Article Number 80
Keywords Heavy ion phenomenology.


Published Journal Article (989 Kb)

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Copyright Statement
Open Access. This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

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