SMuK 2021 – wissenschaftliches Programm
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MP: Fachverband Theoretische und Mathematische Grundlagen der Physik
MP 16: Strongly Interacting Quantum Field Theory
MP 16.1: Vortrag
Donnerstag, 2. September 2021, 15:00–15:25, H6
Non-perturbative contribution to the collisional broadening and medium induced radiation in QCD plasmas — Guy D. Moore1, Soeren Schlichting2, Niels Schlusser1,3, and •Ismail Soudi2 — 1Institut fur Kernphysik, Technische Universitat Darmstadt — 2Fakultat fur Physik, Universitat Bielefeld — 3Department of Physics & Helsinki Institute of Physics
Due to the famous infrared problem of finite temperature QCD, perturbative calculation of transport phenomena can receive large non-perturbative contributions.
Here, we investigate the impact of non-perturbative contributions to jet-medium interactions, by incorporating non-perturbative contributions to the collisional broadening kernel C(b⊥), which determines the rate of medium induced radiation.
We construct the collision kernel C(b⊥) non-perturbatively, by matching lattice EQCD calculations [1] with the correct ultraviolet behavior of QCD.
By comparing the results for medium induced radiation in infinite and finite QCD plasmas [2] to leading order and next to leading order calculations, we assess the importance of non-perturbative aspects of momentum broadening for jet quenching calculations.
[1] - G. D. Moore and N. Schlusser, Phys. Rev. D101, 014505(2020), [Erratum: Phys.Rev.D 101, 059903 (2020)], arXiv:1911.13127 [hep-lat]
[2]- G. D. Moore, S. Schlichting, N. Schlusser and I. Soudi [arXiv: 2105.01679]