Joint INFN-UNIMI-UNIMIB Pheno Seminars

Mixed QCD-electroweak corrections to Higgs gluon fusion

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

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

Aula Caldirola

Dipartimento di Fisica, Università degli Studi di Milano

Via Giovanni Celoria, 16, 20133 Milano MI, Italia

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.