ABSTRACT
At the time of writing these proceedings (December 2009), we have just witnessed the successful re-start (after the sudden stop of operations in September 2008) of the world’s most powerful particle accelerator ever built. CERN’s Large Hadron Collider (LHC) has provided first collisions at injection energy (450 GeV per beam) and at the world’s record energy of 1.18 TeV/beam. The centre-of-mass energy was increased to 7 TeV for the runs in 2010 and 2011.
