2008/06/20 by Lorenzo Magnea · 1 citation
Physics and Astronomy · #Exponentiation #Gluon #Gravitational singularity #High-Energy Particle Collisions Research #Logarithm #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Resummation #hep-ph #hep-th
paper · pdf · doi:10.1007/s12043-009-0006-y
published as Pramana 72:69-81,2009 · 15 pages, invited talk presented at the 10th Workshop in High Energy Physics Phenomenology (WHEPP X), Chennai, India, January 2008
arxiv created 2008/06/20 · openalex publication_date 2009/01/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
I briefly review some general features and some recent developments concerning the resummation of long-distance singularities in QCD and in more general non-abelian gauge theories. I emphasize the field-theoretical tools of the trade, and focus mostly on the exponentiation of infrared and collinear divergences in amplitudes, which underlies the resummation of large logarithms in the corresponding cross sections. I then describe some recent results concerning the conformal limit, notably the case of N = 4 superymmetric Yang-Mills theory