Speaker
Silvia Biondi
(Universita e INFN, Bologna (IT))
Description
The associated production of the Higgs boson with a pair of
top/anti-top quarks (ttH) is the only process providing the direct access to
the measurement of the Yukawa coupling between the Higgs boson and the top
quark. The presented results exploit the data collected during 2015 and 2016
by the ATLAS experiment during LHC collisions at a center-of-mass energy of
13 TeV. Multivariate analysis techniques are used in order to discriminate
the signal from the very large backgrounds arising mainly from top-quark
pair production. In addition, the analysis uses for the first time algorithms
specifically designed to cope with the challenging reconstruction of
hadronically decaying high-pT bosons and top quarks.
