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Jet-medium interactions at NLO in a weakly-coupled quark-gluon plasma

Ghiglieri, Jacopo ; Moore, Guy D. ; Teaney, Derek (2022)
Jet-medium interactions at NLO in a weakly-coupled quark-gluon plasma.
In: Journal of High Energy Physics, 2016, 2016 (3)
doi: 10.26083/tuprints-00012820
Artikel, Zweitveröffentlichung, Verlagsversion

Kurzbeschreibung (Abstract)

We present an extension to next-to-leading order in the strong coupling constant g of the AMY effective kinetic approach to the energy loss of high momentum particles in the quark-gluon plasma. At leading order, the transport of jet-like particles is determined by elastic scattering with the thermal constituents, and by inelastic collinear splittings induced by the medium. We reorganize this description into collinear splittings, highmomentum-transfer scatterings, drag and diffusion, and particle conversions (momentumpreserving identity-changing processes). We show that this reorganized description remains valid to NLO in g, and compute the appropriate modifications of the drag, diffusion, particle conversion, and inelastic splitting coefficients. In addition, a new kinematic regime opens at NLO for wider-angle collinear bremsstrahlung. These semi-collinear emissions smoothly interpolate between the leading order high-momentum-transfer scatterings and collinear splittings. To organize the calculation, we introduce a set of Wilson line operators on the light-cone which determine the diffusion and identity changing coefficients, and we show how to evaluate these operators at NLO.

Typ des Eintrags: Artikel
Erschienen: 2022
Autor(en): Ghiglieri, Jacopo ; Moore, Guy D. ; Teaney, Derek
Art des Eintrags: Zweitveröffentlichung
Titel: Jet-medium interactions at NLO in a weakly-coupled quark-gluon plasma
Sprache: Englisch
Publikationsjahr: 2022
Publikationsdatum der Erstveröffentlichung: 2016
Verlag: Springer
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Journal of High Energy Physics
Jahrgang/Volume einer Zeitschrift: 2016
(Heft-)Nummer: 3
Kollation: i, 56 Seiten
DOI: 10.26083/tuprints-00012820
URL / URN: https://tuprints.ulb.tu-darmstadt.de/12820
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Herkunft: Zweitveröffentlichung
Kurzbeschreibung (Abstract):

We present an extension to next-to-leading order in the strong coupling constant g of the AMY effective kinetic approach to the energy loss of high momentum particles in the quark-gluon plasma. At leading order, the transport of jet-like particles is determined by elastic scattering with the thermal constituents, and by inelastic collinear splittings induced by the medium. We reorganize this description into collinear splittings, highmomentum-transfer scatterings, drag and diffusion, and particle conversions (momentumpreserving identity-changing processes). We show that this reorganized description remains valid to NLO in g, and compute the appropriate modifications of the drag, diffusion, particle conversion, and inelastic splitting coefficients. In addition, a new kinematic regime opens at NLO for wider-angle collinear bremsstrahlung. These semi-collinear emissions smoothly interpolate between the leading order high-momentum-transfer scatterings and collinear splittings. To organize the calculation, we introduce a set of Wilson line operators on the light-cone which determine the diffusion and identity changing coefficients, and we show how to evaluate these operators at NLO.

Status: Verlagsversion
URN: urn:nbn:de:tuda-tuprints-128201
Sachgruppe der Dewey Dezimalklassifikatin (DDC): 500 Naturwissenschaften und Mathematik > 530 Physik
Fachbereich(e)/-gebiet(e): 05 Fachbereich Physik
05 Fachbereich Physik > Institut für Kernphysik
Hinterlegungsdatum: 02 Mär 2022 13:18
Letzte Änderung: 03 Mär 2022 09:32
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