2014/04/30 by Nikolaos Kidonakis, Elwin Martin
Mathematics · Physics and Astronomy · #Gluon #High-Energy Particle Collisions Research #Logarithm #Mathematics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quark #Resummation #Top quark #hep-ph
paper · pdf · doi:10.1103/physrevd.90.054021
published as Phys. Rev. D 90, 054021 (2014) · 17 pages, 8 figures; a new section with two figures has been added
arxiv created 2014/08/18 · openalex publication_date 2014/09/22 · arxiv updated 2014/10/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
We present a calculation of soft-gluon corrections in flavor-changing neutral current top-quark production via anomalous t-q-g couplings. The soft anomalous dimension matrix is explicitly calculated at one-loop accuracy. This calculation allows threshold resummation at next-to-leading-logarithm accuracy. We also derive expressions for the soft-gluon corrections at next-to-leading order and at next-to-next-to-leading order.