1995/05/26 by G.P. Korchemsky, G. P. Korchemsky, Korchemsky, G. P. +3 · 1 citation
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9505391
to appear in the Proceedings of the XXXth Rencontres de Moriond, ``QCD and High Energy Hadronic Interactions'', Les Arcs, France, March 1995; 9 pages, LaTeX style
arxiv created 1995/05/26 · openalex publication_date 1995/05/26 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We discuss the role of infrared renormalons in power corrections to hadronic cross sections, including their universality. We show how perturbative renormalon structure arises near kinematic boundaries in the thrust distribution, the Drell-Yan cross section and radiative B decays. The leading infrared renormalon in each case is associated with jet evolution. Demanding that the combination of perturbative and nonperturbative contributions be well-defined, we infer the form of the leading power corrections to each cross section. This is at the level 1/Q for the thrust distribution and Drell-Yan process, and 1/m2 for B decay. We discuss the universality of 1/Q corrections between Drell-Yan and thrust, and conclude that it is approximate, due to contributions from multijet configurations that may differ in the two cases.