Journal
PHYSICS LETTERS B
Volume 707, Issue 1, Pages 156-159Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2011.12.042
Keywords
Perturbative QCD; Jet physics; Jet quenching
Funding
- Ministerio de Ciencia e Innovacion of Spain
- Xunta de Galicia
- Spanish Consolider-Ingenio CPAN
- European Commission
- Swedish Research Council [621-2010-3326]
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We investigate soft gluon radiation off a quark-antiquark antenna in both color singlet and octet configurations traversing a dense medium. We demonstrate that, in both cases, multiple scatterings lead to a gradual decoherence of the antenna radiation as a function of the medium density. In particular, in the limit of a completely opaque medium, total decoherence is obtained, i.e., the quark and the antiquark radiate as independent emitters in vacuum, thus losing memory of their origin. (C) 2011 Elsevier B.V. All rights reserved.
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