Speaker
Jose Miguel No
(IFT-UAM/CSIC)
Description
We investigate semi-invisible Higgs decays $h \to Z X$ (with $X$ an invisible particle) as probes of the possible interactions of the Higgs boson with a dark sector. This possibility can occur in dark matter models with a low-mass pseudoscalar mediator to the dark sector, as well as in models of axion-like particles or dark photons interacting with the Higgs boson. The SM decay $h \to Z\nu\nu$ constitutes a "neutrino floor" for this type of search (and provides a sensitivity target for the search), and we study the window that is left for probing new physics via $h \to Z X$ at the LHC and future colliders.
Author
Jose Miguel No
(IFT-UAM/CSIC)