H-->ggg(gqqbar) at Two Loops in the Large-M_t Limit

Abstract

We present a calculation of the two-loop helicity amplitudes for the processes H-->ggg and H-->gqqbar in the large-M_t limit. In this limit the calculation can be performed in terms of one-loop diagrams containing an effective Hgg operator. These amplitudes are required for the next-to-leading order (NLO) corrections to the Higgs transverse momentum distribution and the next-to-next-to-leading order (NNLO) corrections to the Higgs production cross section via the gluon fusion mechanism.

13 pages Latex, 2 figures

References in corpus (2)

• Multi-Parton Amplitudes in Gauge Theories
• Higgs Decay to Order α_s^4

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