Operation of the Betatron Squeeze at the LHC

The betatron squeeze is one of the most delicate operational phases at the Large Hadron Collider (LHC) as it entails changes of optics performed at top energy, with full intensities. Appropriate software was developed to handle the squeeze, which ensured an efficient commissioning down to a β* of 60 cm at 4 TeV, and a smooth operation. Several optics configurations could be commissioned and put in operation for physics. The operational experience of the LHC runs from 2010 until 2013 is presented and the overall squeeze performance reviewed