April 7, 2015

The ATLAS catching the particle "splashes" when one of the first beams passed through the Large Hadron Collider (Image courtesy CERN. All rights reserved)

This Easter represented for CERN the time of the Large Hadron Collider (LHC) full operation restart. After the testing that began a few weeks ago, in the morning of last Sunday a proton beam has covered all 27 kilometers (about 17.7 miles) of the giant ring. After less than two hours, a second beam was sent in the opposite direction. The energy was “only” 450 GeV but it was a major event for the restart of the scientific activity.