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Medium-induced gluon radiation in hard forward parton scattering in the saturation formalism

2016/03/03 by S. Munier, Stéphane Munier, Stéphane Peigné +1
Physics and Astronomy · #Color-glass condensate #Formalism (music) #Geometry #Gluon #Hadron #High-Energy Particle Collisions Research #Opacity #Particle physics #Particle physics theoretical and experimental studies #Parton #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum electrodynamics #Quantum mechanics #Rotation formalisms in three dimensions #Saturation (graph theory) #Scattering #hep-ph

paper · pdf · doi:10.1103/physrevd.95.014014

published as Phys. Rev. D 95, 014014 (2017) · 25 pages, 2 figures

arxiv created 2016/03/03 · openalex created_date 2016/06/24 · openalex publication_date 2017/01/13 · arxiv updated 2017/01/18 · openalex updated_date 2026/08/05

Abstract

We derive the medium-induced, fully coherent soft gluon radiation spectrum associated with the hard forward scattering of an energetic parton off a nucleus, in the saturation formalism within the Gaussian approximation for the relevant correlators of Wilson lines and for finite number of colors. The validity range of the result is rigorously specified by keeping track of the order of magnitude of subleading contributions to the spectrum. The connection between the saturation formalism and the opacity expansion used in previous studies of the same observable is made apparent. Our calculation sets the basis for further studies of the interplay between saturation and fully coherent energy loss in hard forward parton scattering.

Citations