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arXiv · 1302.4379

Soft triple-real radiation for Higgs production at N3LO

Charalampos Anastasiou·Claude Duhr·Falko Dulat·Bernhard Mistlberger
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Abstract

We present the two first terms in the threshold expansion of Higgs production partonic cross-sections at hadron colliders for processes with three partons in the final state. These are contributions to the inclusive Higgs cross-section in gluon fusion at N3LO. We have developed a new technique for the expansion of the squared matrix-elements around the soft limit and for the reduction of the required phase-space integrals to only ten single-scale master integrals. We compute the master integrals building upon modern techniques for the integration of multidimensional integrals in dimensional regularization. Our results constitute an important step towards a systematic computation of the Higgs boson cross-section as an expansion around the threshold limit.

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Charalampos Anastasiou, Claude Duhr, Falko Dulat, Bernhard Mistlberger. 2013-02-18. Soft triple-real radiation for Higgs production at N3LO. https://doi.org/10.1007/jhep07(2013)003

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