Accelerator highlights, challenges and successes in 2023

President of the French Republic Emmanuel Macron and President of the Swiss Confederation Alain Berset visited CERN on 16 November

Another few days and the last 2023 LHC beams will be dumped, hopefully by the machine protection system following a controlled magnet quench

Since the last Accelerator Report, lead-ion beams have been successfully provided to the SPS North Area, in particular to the NA61 experiment, which is their principal user

For the coming 5 weeks the LHC experiments will be taking data for their heavy-ion physics programmes

In about a week, lead ions will be sent from the SPS into the LHC to collide in the accelerator’s four big experiments

Despite challenging working conditions, the vacuum leak caused by the quench that occurred on 17 July was repaired in less than 10 days

Scroll through the photo diary to relive the repair of the LHC

New result from the ATLAS experiment at CERN reaches the unprecedented precision of 0.09%

On Monday, 17 July, the LHC beams were dumped after only 9 minutes in collision due to a radiofrequency interlock caused by an electrical perturbation

On Friday, 30 June, an exciting milestone was reached: the much-awaited antiproton physics season finally commenced

On Monday, 19 June, LHC operation was paused for one week to allow the technical teams to carry out preventive and corrective maintenance on the machine and its subsystems