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arXiv · 1610.03747

Two-loop $gg \to Hg$ amplitude mediated by a nearly massless quark

Kirill Melnikov·Lorenzo Tancredi·Christopher Wever
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Abstract

We analytically compute the two-loop scattering amplitude $gg \to Hg$ assuming that the mass of the quark, that mediates the ggH interaction, is vanishingly small. Our computation provides an important ingredient required to improve the theoretical description of the top-bottom interference effect in Higgs boson production in gluon fusion, and to elucidate its impact on the Higgs boson transverse momentum distribution.

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Kirill Melnikov, Lorenzo Tancredi, Christopher Wever. 2016-11-30. Two-loop $gg \to Hg$ amplitude mediated by a nearly massless quark. https://doi.org/10.1007/jhep11(2016)104

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