The discovery of the Higgs boson in 2012 by the ATLAS and CMS experiments at CERN opened a phase of precision measurements of the properties of the Higgs boson, the keystone of the Standard Model (SM) of particle physics.
The ATLAS and CMS collaborations, involving teams from CEA/IRFU and CNRS/IN2P3, announced on 4 June 2018 at the LHCP conference the direct observation of the coupling of the quark top to the Higgs boson.
Data collected at the LHC (Cern) were processed to provide the most accurate assessment of an asymmetry in top quark and top antiquark production. The result is that the measured value is compatible with the prediction of the standard particle model.
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