2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/185303We calculate the cross section of the process e^+e^- \to t\bar t near threshold by resumming Coulomb-like terms with next-to-next-to-leading (NNLO) accuracy. The nonrelativistic Green function formalism and the method of ``direct matching'' are used. The NNLO correction turns out to be large, of the same size as the NLO correction. It changes the position and the normalization of the 1S-peak. The obtained results are compared with results existing in the literature.LaTeX, 12 pages, 4 ps figures, journal versionHigh Energy Physics - Phenomenologytext