NNLO QCD subtraction for top-antitop production in the q q ¯ $$ q\overline{q} $$ channel
نویسندگان
چکیده
منابع مشابه
Top quark production near threshold: NNLO QCD correction
We calculate the cross section of the process e+e− → tt̄ 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...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2014
ISSN: 1029-8479
DOI: 10.1007/jhep08(2014)035