LAUSR

The Standard Model (SM) of particle physics has had its triumphant moment when in 2012 the Higgs particle was discovered at the Large Hadron Collider (LHC). Since then the research program at CERN has focused on finding new physics beyond the standard model (BSM). Since even the recent experimental runs did not yield any obvious new particles or phenomena the emphasis now is on precision physics. One prerequisite for these BSM precision studies is the remarkable beam precision and stability at LHC. The beam energy is known to better than 0.1% and its changes during a run are within about 0.02%. Enormous technical expertise, equipment, and work went into reaching this accuracy. Up to today, however, no sign of BSM physics has been sighted.