paper

Analytic results for the one-loop NMHV Hqqgg amplitude

arXiv:0910.4481 · doi:10.1088/1126-6708/2009/12/035

Abstract

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, qbar-, q+, g-, 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.

21 pages, 1 figure

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