Roadmap at the LHC to the Higgs boson and beyond (Including highlights from ATLAS)

The journey for the search of the Standard Model Higgs boson at the LHC started more than two decades ago. During 2010-2012, experiments at the Large Hadron Collider (LHC) have started exploring physics at the high-energy frontier. Thanks to the superb turn-on of the LHC already a rich harvest of initial physics results has been obtained by the general-purpose experiments ATLAS and CMS. The initial data have allowed one to test, at the highest collision energies ever reached in a laboratory, the Standard Model (SM) of elementary particles, and to make many searches Beyond the Standard Model (BSM). Clearly the most important results have been obtained with the discovery of a (or ‘the’) Higgs boson, which establishes the postulated electro-weak symmetry breaking mechanism in the SM.