CERN Accelerating science

On 4 July 2012, the ATLAS and CMS experiments announced the observation of a new particle with a mass around 125 GeV: the Higgs boson.

The Trigger and Data Acquisition system ensures optimal data-taking conditions and selects the most interesting collision events for study.

The ATLAS software and computing system processes and stores the vast amounts of collision data collected by the detector.

Make your own Standard Model

Label the Detector

Follow particle decays through a maze

Particles vs. Antiparticles

Spot the Differences