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

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

1997-07-24

arxiv.org/abs/hep-ph/9707448v1

Phys.Lett. B413 (1997) 391-395

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages Latex, 2 figures

Scientific paper

10.1016/S0370-2693(97)01102-7

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.

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