The accelerators that feed into the Large Hadron Collider are ready to supply more intense beams

On 6 October, the total integrated luminosity passed the symbolic mark of 100 fb⁻¹, exceeding the forecast curve. This allowed the bunch intensity to be increased to explore the intensity reach and limitations in view of the HL-LHC era

Oliver Brüning, who has led the HL-LHC project since 2020, is handing the position of HL-LHC project leader over to Markus Zerlauth

The delivery of two huge compressors kicks off the installation of the new helium refrigerators for the High-Luminosity LHC

As the 2025 LHC run enters its final ten weeks, strong performance pushes luminosity past 90 inverse femtobarns, while lead-ion preparations are ahead of schedule

The LHC pre-injectors delivered excellent availability throughout recent weeks, while an SPS electrical fault and an LHC collimator vacuum leak have been overcome, allowing a successful return to full luminosity production

Five-year extensions to CERN’s CLEAR and MEDICIS platforms will boost the impact of cutting-edge accelerator technologies in areas ranging from advanced medical treatments to aerospace electronics

The past weeks brought a mix of hands-on interventions and forward-looking studies across the CERN accelerator complex, while the LHC continued to catch up with the forecast luminosity curve

So far the summer run has seen solid progress in luminosity production, but also some unexpected beam and machine behaviour. Careful monitoring revealed a hardware issue, now being closely watched as the LHC continues to perform at full capacity.

Trailblazing plasma wakefield experiment, AWAKE, begins its upgrade one year ahead of the rest of CERN’s accelerator complex