John Stakely Keller (DESY (DE))
Observing Higgs boson production in association with a pair of top quarks would allow a direct measurement of the top quark Yukawa coupling and provide an important test of the Higgs mechanism within the Standard Model. A search for this process is presented using pp collisions at sqrt(s) = 13 TeV, collected with the ATLAS detector in 2015 and 2016. Higgs boson decays to two b quarks, and top pair decays with one or two leptons, are considered. The results are combined with ttH searches in other decay channels.
ATLAS Collaboration (CERN)