One of the first collisions with "stable beam" at 13 TeV recorded by CMS. Variants below.
From the CERN Press Release:
Today, CERN's Large Hadron Collider (LHC) started delivering physics data for the first time in 27 months. After an almost two year shutdown and several months re-commissioning, the LHC is now providing collisions to all of its experiments at the unprecedented energy of 13 TeV, almost double the collision energy of its first run. This marks the start of season 2 at the LHC, opening the way to new discoveries. The LHC will now run round the clock for the next three years.
“The collisions we are seeing today indicate that the work we have done in the past two years to prepare and improve our detector has been successful and marks the beginning of a new era of exploration of the secrets of nature,” said CMS spokesperson Tiziano Camporesi. “We can hardly express our excitement within the collaboration: this is especially true for the youngest colleagues.”
The images in the sidebar show one of the first collisions with "stable beam" at 13 TeV recorded by CMS. The animation below shows the same collision event (also available on CDS: https://cds.cern.ch/record/2021541).