Top mass effects in Higgs production at next-to-next-to-leading order QCD: virtual corrections
arXiv:0907.2997 · doi:10.1016/j.physletb.2009.08.012
Abstract
Top quark mass suppressed terms are calculated for the virtual amplitude for Higgs production in gluon fusion at three-loop level, i.e. O(α_s^3). The method of asymptotic expansions in its automated form is used to evaluate the first three non-vanishing orders in terms of M_H^2/M_t^2, where the first order corresponds to the known results of the effective Lagrangian approach.
9 pages, 3 figures
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