%0 Journal Article
%T Top quark production near threshold: NNLO QCD correction
%A Oleg Yakovlev
%J Physics
%D 1998
%I arXiv
%R 10.1016/S0370-2693(99)00507-9
%X We 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.
%U http://arxiv.org/abs/hep-ph/9808463v4