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Two-loop amplitude mediated by a nearly massless quark
Kirill Melnikov, Lorenzo Tancredi, Christopher Wever
We analytically compute the two-loop scattering amplitude assuming that the mass of the quark, that mediates the ggH interaction, is vanishingly small. Our computation…
Two-loop electroweak corrections to Higgs-gluon couplings to higher orders in the dimensional regularization parameter
Marco Bonetti, Kirill Melnikov, Lorenzo Tancredi
We compute the two-loop electroweak correction to the production of the Higgs boson in gluon fusion to higher orders in the dimensional-regularization parameter . We em…
QCD corrections to vector boson pair production in gluon fusion including interference effects with off-shell Higgs at the LHC
Fabrizio Caola, Matthew Dowling, Kirill Melnikov +2
We compute next-to-leading order (NLO) QCD corrections to the production of two massive electroweak bosons in gluon fusion. We consider both the prompt production process $gg \to V…
On the light quark mass effects in Higgs boson production in gluon fusion
Kirill Melnikov, Alexander Penin
Production of Higgs bosons at the LHC is affected by the contribution of light quarks, that mediate the gg \to Hg transition. Although their impact is suppressed by small Yukawa co…
Higgs boson decay to two photons and the dispersion relations
Kirill Melnikov, Arkady Vainshtein
We discuss the computation of the Higgs boson decay amplitude to two photons through the W-loop using dispersion relations. The imaginary part of the form factor F_W(s) that parame…