2 Heavy top limit and double - logarithmic contributions to
نویسنده
چکیده
Next-to-next-to-leading order (NNLO) QCD corrections to Higgs boson hadroproduction have recently been calculated in the heavy top-quark limit m t → ∞. The m t → ∞ limit introduces double-logarithmic corrections in ln x, with x ≡ m 2 H /s. We identify these corrections order by order in α s. As an application, we derive an analytic expression for the dominant x ≪ 1 part of the NNLO coefficient.
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تاریخ انتشار 2002