1996/03/14 by K. G. Chetyrkin, K.G. Chetyrkin, André H. Hoang +6 · 3 citations
Engineering · Physics and Astronomy · #Particle Accelerators and Free-Electron Lasers #Particle physics theoretical and experimental studies #Superconducting Materials and Applications #hep-ph
paper · pdf · doi:10.1016/0370-2693(96)00789-7
published as Phys.Lett. B384 (1996) 233-240 · 9 pages, latex, 17 figures, the complete postscript file of this preprint, including figures, is available via anonymous ftp at ftp://www-ttp.physik.uni-karlsruhe.de/ttp96-04/ttp96-04.ps (129.13.102.139) or via www at http://www-ttp.physik.uni-karlsruhe.de/cgi-bin/preprints/
arxiv created 1996/03/14 · openalex publication_date 1996/09/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Second order \cal O(αs2) corrections to the heavy quark production cross-section due to massless quarks and coloured scalars are calculated for all energies above threshold. Based on the method introduced in this letter also the gauge non-invariant second order corrections due to the pure gluonic selfenergy insertion and a certain class of \calO(αs3) and \calO(αs4) corrections are determined. For the special choice of the gauge parameter, ξ=4, the leading threshold and high energy behaviour of the pure second order gluonic corrections to the cross-section are governed by the gluonic self energy insertion.