Mixed QCD-electroweak corrections to Higgs gluon fusion

by Marco Bonetti (Karlsruhe Institute of Technology (KIT))

Thursday 22 Feb 2018, 14:00 → 15:00 Europe/Zurich

Aula Caldirola (Dipartimento di Fisica, Università degli Studi di Milano)

The study of Higgs boson properties is one of the main tasks of contemporary high-energy physics. Higgs boson interaction with gluons is interesting since it is a dominant production mechanism at LHC and since it is sensitive to unknown additional elementary particles. One of the major sources of uncertainty in the theoretical description of $ggH$ coupling originates from mixed QCD-electroweak contributions. NLO QCD corrections to these contributions are currently known only in the limit of large mass for electroweak bosons, and an exact computation is desirable. I will present the analytic evaluation of NLO mixed QCD-electroweak three-loop virtual corrections to $gg\to H$ in the framework of differential equations for master integrals.

20180222_Bonetti.pdf