The early morning of 8 December offered a reminder that, in accelerator operations, not everything always goes according to ...

The emergence of collective effects between the final state particles produced in heavy-ion collisions has long been considered a signature of the presence of a deconfined medium produced in these ...

Next time you walk by Building 40, you’ll notice a sinuous hedge on the lawn that has been left to grow into a meadow, along ...

The members of the CERN alumni network, who now number more than 10 000, had the opportunity to give feedback in the 2025 CERN alumni survey. With just under 1000 responses, the results highlighted ...

The Swiss Permanent Mission in Geneva would like to make staff members aware of the prohibitions and restrictions applicable ...

Particle collisions at the Large Hadron Collider (LHC) can reach temperatures over one hundred thousand times hotter than at ...

Gauge theories are the foundation of much of modern high-energy physics, from lattice QCD simulations to effective field theories that model complex phenomenology in high-energy experiments. Despite ...

After a few final laps around the ring, the beams of the Large Hadron Collider (LHC) were paused at 6.00 a.m. on Monday, 8 December for the usual year-end technical stop. Launched on 5 May, the LHC’s ...

General site services As always, in addition to the Fire and Rescue service (+41 22 76) 74444, the Security service remains operational every day (24/7) and can be reached at (+41 22 76) 76666. SCE ...

Illustration of a tetraquark composed of two charm quarks and two charm antiquarks. (Image: CERN) To date, the Large Hadron Collider (LHC) at CERN has discovered 80 particles. The most famous is the ...

In a paper published today in Nature Communications, researchers at the ALPHA experiment at CERN’s Antimatter Factory report a new technique that allows them to produce over 15 000 antihydrogen atoms ...

Following a recommendation by the Standing Concertation Committee at its meeting on 27 November 2025 and approval by the Director-General, please note that the Part-Time Work as a Pre-retirement ...