Precise knowledge of the top-quark mass is of paramount importance to understand our world at the smallest scale

New ATLAS and CMS analyses place tight limits on the strength of the Higgs boson's interaction with the charm quark

President Áder visited the CMS cavern and the Globe of Science and Innovation to mark the anniversary of his country joining CERN

An exhibition centre in South Korea was “wrapped” in CMS for six months last year. The innovative science, art and education exhibition is still accessible online.

The collaborations have set stringent new bounds on the fraction of Higgs bosons transforming into invisible particles

The collaboration reports a value for the Higgs boson’s lifetime that has a small enough uncertainty to confirm that the particle has a tiny lifetime

CERN’s most ambitious emergency response exercise to date took place on 13 November at LHC Point 5, with the involvement of French, Swiss and CERNois safety and rescue teams

In a first for particle physics, the CMS collaboration has observed three J/ψ particles emerging from a single collision between two protons

Calabrese, Capricciosa, Diavola and Margherita – the four modules of the BRIL sub-system – were mounted on the CMS experiment in July 2021