Ponente
Descripción
The origin of the matter antimatter asymmetry in the universe is one of the unsolved questions in physics. The CP-violating processes in the standard model are not enough to explain the full difference and some beyond the standard model extensions suggest CP-violation might arise in the Higgs sector. In particular, the Higgs coupling to fermions has not yet been proven to be invariant under CP transformations. In this talk I’ll cover the search for CP violation in the top Yukawa coupling using the production of a Higgs (H) boson in association with two top quarks. The measurement is performed n final states containing multiple electrons, muons, or tau leptons decaying to hadrons and a neutrino, using proton-proton collisions recorded at a center-of-mass energy of 13 TeV by the CMS experiment.
