Prospects for measuring the Higgs trilinear self-coupling at the LHC and future colliders

by Mr Thibaud Vantalon (IFAE/DESY)

Monday 26 Mar 2018, 14:00 → 15:00 Europe/Berlin

Seminar Room 03 (DESY Hamburg)

After a brief comparison between the use of the kappa framework and effective field theory (EFT) to extract couplings at colliders, we discuss the prospects of measuring the elusive Higgs trilinear self-coupling at the LHC and future colliders. In order to achieve this goal in a (mostly) model-independent way we use EFT to parameterise potential new-physics effects. The bounds we extract take into account both the usual Higgs pair-production channel and the recently revived idea to use higher-order corrections to single-Higgs processes.

Slides seminar.pdf