Two-loop $gg \to Hg$ amplitude mediated by a nearly massless quark
arXiv:1610.03747 · doi:10.1007/JHEP11(2016)104
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.
29 pages, 4 figures, analytical results attached as ancillary files, v2 minor typos corrected, published on JHEP