Speaker
Description
Higgs boson pair production (HH) is traditionally considered to be of particular interest for a measurement of the trilinear Higgs self-coupling. Yet it can offer insights into other couplings as well, since - in an effective field theory (EFT) parameterisation of potential new physics - both the production cross section and kinematical properties of the Higgs boson pair depend on various other Wilson coefficients of EFT operators.
This talk presents work recently performed and documented in a LHC Higgs Working Group note, which summarises the current efforts related to the development of EFT tools for HH in gluon fusion. It also includes recommendations for EFT parameterisations and updates to benchmark scenarios. A parameterisation of the next-to-leading order QCD corrections in terms of the EFT Wilson coefficients is presented and a reweighting procedure which can be used to speed up experimental analyses is validated.
