Event

Sep 12, 2019 3:45 pm - Nielsen Hall 170 - Colloquium
Othmane Rifki - CERN
Higgs as a probe for dark matter

Dark matter particles, if sufficiently light, may be produced in decays of the Higgs boson. The total decay width of the Higgs boson is not constrained precisely, allowing for up to 30% of the branching fraction to be from invisible or undetected decays of the Higgs. A precise measurement of the invisible branching ratio of the Higgs can be interpreted as a search for dark matter. In this colloquium, I discuss the status of dark matter searches at the LHC, in particular searches for invisible decays of the Higgs in all production modes. I will discuss the complementarity between the collider approach of searching for dark matter and direct detection experiments.