In the seventh part of the LHC Physics at Ten series, we look at the surprising phenomena of the Standard Model at high energies An event display of the highest-mass dijet event, (Event 4144227629, Run 305777) recorded in 2016 by the ATLAS Experiment. Without the signature of the experiment (Image: CERN) Robust” is what scientists working on the Large Hadron Collider (LHC) like to use to describe the Standard Model. By stubbornly probing it for weaknesses over the past 10 years, they have run up against the extreme solidity of this theory, which describes particles and forces. However, particle physicists are well aware that this model, finalised in the 1970s, has a few shortcomings. They are therefore searching for a wider theory that could resolve certain mysteries, and are banking on the LHC to help them find it. But apart from the triumphant discovery of the Higgs boson, no other new fundamental particle has been discovered, nor any extraordinary pheno