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. In particular, the study of the Higgs boson pair production (HH) allows a parameter called Higgs boson self-coupling, the last one of the SM not yet measured, to be determined. This measurement provides a unique test of the mechanism that explains how particles acquire mass in the SM.
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