Speaker
Giuseppe Bevilacqua
(NCSR Demokritos)
Description
We present the computation of the NLO QCD corrections to the production of a Higgs boson in association with a top-antitop pair (ttH) in the di-lepton decay channel at the LHC, including relevant dimension-6 operators ($O_{t\phi}$, $O_{\phi G}$, $O_{tG}$, $O_{tW}$) from the Standard Model Effective Field Theory. In our study, higher-order corrections and effective operators are consistently included in the production part of the process as well as in top-quark decays. We perform a detailed study of linear, cross, and quadratic contributions and their uncertainties, including renormalisation group effects. All results have been obtained with the newly developed package HELAC-SMEFT.
Authors
Giuseppe Bevilacqua
(NCSR Demokritos)
Malgorzata Maria Worek
(Rheinisch Westfaelische Tech. Hoch. (DE))
Minos Reinartz
(RWTH Aachen)