2020/08/31 by Soeren Schlichting, Ismail Soudi
Physics and Astronomy · #Cascade #Fragmentation (computing) #High-Energy Particle Collisions Research #Jet (fluid) #Kinetic energy #Particle physics theoretical and experimental studies #Parton #Quantum Chromodynamics and Particle Interactions #Radiative transfer #Spectral line #Thermal #hep-ph #nucl-th
paper · pdf · doi:10.1007/jhep07(2021)077
published as JHEP 07 (2021) 077 · 42 pages, 9 figures
openalex publication_date 2021/07/01 · arxiv created 2021/07/16 · arxiv updated 2021/07/19 · openalex created_date 2021/07/19 · openalex updated_date 2026/08/06
A bstract We investigate the energy loss and equilibration of highly energetic particles/jets inside a QCD medium. Based on an effective kinetic description of QCD, including 2 ↔ 2 elastic processes, radiative 1 ↔ 2 processes, as well as the back-reaction of jet constituents onto the thermal medium, we describe the in-medium evolution of jets from the energy scale of the jet ∼ E all the way to the medium scale ∼ T . While elastic processes and back-reaction are important to describe the equilibration of soft fragments of the jet, we find that the energy loss is dominated by an inverse turbulent cascade due to successive radiative branchings, which has interesting implications for the energy spectra and chemistry of jet fragments.