Probing New Physics of Higgs Self-interactions

Overview

Despite the discovery of a SM-like Higgs boson h (125 GeV) at the Large Hadron Collider (LHC) Run-1, its self-interaction has fully evaded direct experimental probe so far. Such self-interaction is vital for the spontaneous electroweak symmetry breaking, vacuum stability, electroweak phase transition and the Higgs inflation. It is the most probable place to encode new physics beyond the standard model (SM). In this talk, the speaker will show how to parametrize such new physics by model-independent dimension-6 effective operators, how to test them via various di-Higgs production channels, and how to discriminate them with distinctive kinematic features, at the LHC(14TeV) and a future pp(100TeV) hadron collider. She will also present outlooks on further explorations of Higgs self-interactions.