Accelerator Report: A strong finish and a swift transition into the winter break
The 2025 run was successfully completed on 8 December at 6.00 a.m., signalling the start of the year-end technical stop for the LHC and the injector complex
Another year of outstanding accelerator complex performance
The extraordinary performance reflects decades of accumulated expertise, a culture of continuous development and improvement, and a sustained collective effort across all technical and operational domains
With only three weeks left until CERN’s annual closure, the end of the 2025 run is approaching fast. In less than two weeks, all the beams throughout the accelerator complex will be stopped
The two beams circulating in the LHC are currently running with different bunch intensities – an unexpected (but successful) premiere, giving us a good chance to reach last year’s luminosity record