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[en] We compute the one-loop amplitude for a Higgs boson, a quark-antiquark pair and a pair of gluons of negative helicity, i.e. for the next-to-maximally helicity violating (NMHV) case, A(H, 1-antiq, 2+q, 3-g, 4-g). The calculation is performed using an effective Lagrangian which is valid in the limit of very large top quark mass. As a result of this paper all amplitudes for the transition of a Higgs boson into 4 partons are now known analytically at one-loop order. (orig.)
Source
23 Oct 2009; 21 p; FERMILAB-PUB--09-505-T; IPPP--09-86; ISSN 0418-9833; 