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A Monte Carlo model for 'jet quenching'

Zapp, Korinna LU ; Ingelman, Gunnar ; Rathsman, Johan LU ; Stachel, Johanna and Wiedemann, Urs Achim (2009) In European Physical Journal C 60(4). p.617-632
Abstract

We have developed the Monte Carlo simulation program Jewel 1.0 (Jet Evolution With Energy Loss), which interfaces a perturbative final-state parton shower with medium effects occurring in ultra-relativistic heavy-ion collisions. This is done by comparing for each jet fragment the probability of further perturbative splitting with the density-dependent probability of scattering with the medium. A simple hadronisation mechanism is included. In the absence of medium effects, we validate Jewel against a set of benchmark jet measurements. For elastic interactions with the medium, we characterise not only the medium-induced modification of the jet, but also the jet-induced modification of the medium. Our main physical result is the... (More)

We have developed the Monte Carlo simulation program Jewel 1.0 (Jet Evolution With Energy Loss), which interfaces a perturbative final-state parton shower with medium effects occurring in ultra-relativistic heavy-ion collisions. This is done by comparing for each jet fragment the probability of further perturbative splitting with the density-dependent probability of scattering with the medium. A simple hadronisation mechanism is included. In the absence of medium effects, we validate Jewel against a set of benchmark jet measurements. For elastic interactions with the medium, we characterise not only the medium-induced modification of the jet, but also the jet-induced modification of the medium. Our main physical result is the observation that collisional and radiative medium modifications lead to characteristic differences in the jet fragmentation pattern, which persist above a soft background cut. We argue that this should allow one to disentangle collisional and radiative parton energy loss mechanisms by measuring the n-jet fraction or a class of jet shape observables.

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author
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publishing date
type
Contribution to journal
publication status
published
subject
in
European Physical Journal C
volume
60
issue
4
pages
16 pages
publisher
Springer
external identifiers
  • scopus:64849115455
ISSN
1434-6044
DOI
10.1140/epjc/s10052-009-0941-2
language
English
LU publication?
no
id
fc1a6746-bda2-405a-81f2-ffc4b8b8cbfa
date added to LUP
2019-05-14 13:40:17
date last changed
2022-04-18 04:54:07
@article{fc1a6746-bda2-405a-81f2-ffc4b8b8cbfa,
  abstract     = {{<p>We have developed the Monte Carlo simulation program Jewel 1.0 (Jet Evolution With Energy Loss), which interfaces a perturbative final-state parton shower with medium effects occurring in ultra-relativistic heavy-ion collisions. This is done by comparing for each jet fragment the probability of further perturbative splitting with the density-dependent probability of scattering with the medium. A simple hadronisation mechanism is included. In the absence of medium effects, we validate Jewel against a set of benchmark jet measurements. For elastic interactions with the medium, we characterise not only the medium-induced modification of the jet, but also the jet-induced modification of the medium. Our main physical result is the observation that collisional and radiative medium modifications lead to characteristic differences in the jet fragmentation pattern, which persist above a soft background cut. We argue that this should allow one to disentangle collisional and radiative parton energy loss mechanisms by measuring the n-jet fraction or a class of jet shape observables.</p>}},
  author       = {{Zapp, Korinna and Ingelman, Gunnar and Rathsman, Johan and Stachel, Johanna and Wiedemann, Urs Achim}},
  issn         = {{1434-6044}},
  language     = {{eng}},
  month        = {{04}},
  number       = {{4}},
  pages        = {{617--632}},
  publisher    = {{Springer}},
  series       = {{European Physical Journal C}},
  title        = {{A Monte Carlo model for 'jet quenching'}},
  url          = {{http://dx.doi.org/10.1140/epjc/s10052-009-0941-2}},
  doi          = {{10.1140/epjc/s10052-009-0941-2}},
  volume       = {{60}},
  year         = {{2009}},
}