Jets in QCD media: From color coherence to decoherence |
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Authors: | Yacine Mehtar-Tani |
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Affiliation: | a Departamento de Física de Partículas and IGFAE, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Galicia, Spain b Department of Astronomy and Theoretical Physics, Lund University, SE-223 62 Lund, Sweden |
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Abstract: | 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. |
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Keywords: | Perturbative QCD Jet physics Jet quenching |
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