1995/06/30 by Μ. Beneke, M. Beneke, V. M. Braun +1 · 4 citations
Physics and Astronomy · #Cross section (physics) #Drell–Yan process #Gluon #Hadron #High-Energy Particle Collisions Research #Logarithm #Particle physics #Particle physics theoretical and experimental studies #Parton #Perturbative QCD #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Renormalon #Resummation #Universality (dynamical systems) #hep-ph
paper · pdf · doi:10.1016/0550-3213(95)00439-y
published as Nucl.Phys. B454 (1995) 253-290 · 37 pages, LATEX, 3 figures as uudecoded file
arxiv created 1995/06/30 · openalex publication_date 1995/11/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The resummed Drell-Yan cross section in the double-logarithmic approximation suffers from infrared renormalons. Their presence was interpreted as an indication for non-perturbative corrections of order \lqcd/(Q(1-z)). We find that, once soft gluon emission is accurately taken into account, the leading renormalon divergence in the resummed cross section is cancelled by higher-order perturbative contributions in the exponent of the resummed cross section. From this evidence, `higher twist' corrections to the hard cross section in Drell-Yan production should therefore intervene only at order \lqcd2/((Q2 (1-z)2) in the entire perturbative domain Q (1-z) > \lqcd. We compare this result with hadronic event shape variables, comment on the potential universality of non-perturbative corrections to resummed cross sections, and on possible implications for phenomenology.