A bumper year nears its end

摘要

After some 180 days of running and 4 ×10~(14) proton-proton collisions, the LHC's 2011 proton run came to an end at 5.15 p.m. on 30 October. For the second year running, the LHC team has largely surpassed its operational objectives, steadily increasing the rate at which the LHC has delivered data to the experiments.At the beginning of the year's run, the objective was to deliver an integrated luminosity of 1 fb~(-1) during the course of 2011.