Away-from-jet energy flow

2002/06/30 by Andrea Banfi, A. Banfi, Giuseppe Marchesini +3 · 4 citations
Physics and Astronomy · #Energy (signal processing) #Energy flow #Flow (mathematics) #High-Energy Particle Collisions Research #Ideal (ethics) #Logarithm #Observable #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #hep-ph

paper · pdf · doi:10.1088/1126-6708/2002/08/006

published as JHEP0208:006,2002 · 29 pages, 2 figures, JHEP class included. Paper version

openalex publication_date 2002/08/05 · arxiv created 2002/08/24 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We consider interjet observables in hard QCD processes given by the energy flow E_out in a region away from all hard jets. Here the QCD radiation is depleted (E_out << Q), and therefore these observables provide ideal means to study non-perturbative effects. We derive an evolution equation (in the large N_c limit) which resums, for large Q/E_out, all leading terms arising from large angle soft emission (double logarithms are absent). We discuss the analytical features of the result and identify universal and geometry-dependent contributions. Our analysis confirms features found using numerical methods by Dasgupta and Salam.

Citations

• Evolution of color exchange in QCD hard scattering
• Asymptotic freedom in parton language
• One-loop radiative corrections to the helicity amplitudes of QCD processes involving four quarks and one gluon
• Power corrections and renormalons in Drell-Yan production
• Longitudinally-invariant k⊥-clustering algorithms for hadron-hadron collisions
• HERWIG 6: an event generator for hadron emission reactions with interfering gluons (including supersymmetric processes)

Cited by

• Exact solution of BFKL equation in jet-physics
• Factorized Groomed Jet Mass Distribution in Inclusive Jet Processes
• Non-global logarithms in filtered jet algorithms
• Jet energy drop