CERN1 today announced that the LHC will run with a beam energy of 4 TeV this year, 0.5 TeV higher than in 2010 and 2011. This decision was taken by CERN management following the annual performance workshop held in Chamonix last week and a report delivered today by the external CERN Machine Advisory Committee (CMAC).
The Large Hadron Collider managers have decided to increase the energy of collisions to 4 TeV per beam, for a total energy of 8 TeV. Last year, the LHC smashed two beams of protons together at an energy of 3.5 teraelectronvolts (TeV) each, resulting in collisions with a total energy of 7 TeV.
Running at 8 instead of 7 TeV should boost the machine’s sensitivity to Higgs particles – assuming they are really there – by 30 to 40 per cent, says Greg Landsberg of Brown University in Providence, Rhode Island, who is involved in CMS, one of the LHC’s two main detectors.