2003/04/17 by Matteo Beccaria, Fernand M. Renard, C. Verzegnassi +1 · 4 citations
Mathematics · Physics and Astronomy · #Center of mass (relativistic) #Combinatorics #Energy (signal processing) #High-Energy Particle Collisions Research #Logarithm #Loop (graph theory) #Mathematical analysis #Mathematics #Minimal Supersymmetric Standard Model #Nuclear physics #Order (exchange) #Particle physics #Particle physics theoretical and experimental studies #Physics #Power (physics) #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Reliability (semiconductor) #Supersymmetry #hep-ph
paper · pdf · doi:10.1016/s0550-3213(03)00413-9
published as Nucl.Phys. B663 (2003) 394-406 · 15 pages, 1 Encapsulated PostScript figure
arxiv created 2003/04/17 · openalex publication_date 2003/06/09 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We compare the logarithmic Sudakov expansions of the process e+e- --> W+W- in the one-loop approximation and in the resummed version, to subleading order accuracy, in the SM case and in a light SUSY scenario for the MSSM. We show that the two expansions are essentially identical below 1 TeV, but differ drastically at higher (2,3 TeV) center of mass energies. Starting from these conclusions, we argue that a complete one-loop calculation in the energy region below 1 TeV does not seem to need extra two-loop corrections, in spite of the relatively large size of the one-loop effects.