Speaker
Description
Gluon fusion, gg → HH, is the dominant Higgs-pair production process at the Large Hadron Collider (LHC) and provides the first direct access to the trilinear Higgs self-coupling. The process is loop-induced, with the leading contribution arising from top-quark loops within the Standard Model. QCD corrections for this process have been calculated up to NNLO and are known to substantially enhance the cross section. With the anticipated accuracies achievable at the high-luminosity LHC (HL–LHC), the theoretical uncertainties will be of increased relevance to compete with the experimental precision at the level of less than 30%. In this work, we take the next steps towards the complete NLO EW corrections by calculating the full top-Yukawa and light-quark induced contributions. These corrections are found to modify the cross section moderately in the kinematic regimes of interest. I will present the results of these calculations, discuss their impact on the total and differential cross sections, and outline the status of the remaining contributions required to build the complete NLO EW result.