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News

ATLAS closes in on rare Higgs decays

The ATLAS collaboration finds evidence of Higgs-boson decays to muons and improves sensitivity to Higgs-boson decays to a Z boson and a photon.

News
Physics
11 July, 2025
Physics
News
11 July, 2025

Elusive romance of top-quark pairs observed at the LHC 

The CMS and ATLAS experiments at CERN’s Large Hadron Collider have observed an unforeseen feature in the behaviour of top quarks that suggests that these heaviest of all elementary particles form a fleeting union

Press release
Physics
08 July, 2025
Physics
Press release
08 July, 2025

Venice event brings future of particle physics into focus

Discussions this week at the Open Symposium of the European Strategy for Particle Physics demonstrate strong progress towards ensuring that CERN remains a world leader in collider physics and technology

Press release
At CERN
27 June, 2025
At CERN
Press release
27 June, 2025

AI enhances Higgs boson’s charm

The CMS collaboration presents a new search for the decay of a Higgs boson into charm quarks, bringing physicists closer to unravelling how this unique particle endows matter with mass

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Physics
19 May, 2025
Physics
News
19 May, 2025

Ireland to become an Associate Member State of CERN

On 8 May 2025, CERN Director-General Fabiola Gianotti and Irish Minister for Further and Higher Education, Research, Innovation and Science James Lawless signed an agreement admitting Ireland as an Associate Member State of CERN

Press release
At CERN
08 May, 2025
At CERN
Press release
08 May, 2025

ALICE detects the conversion of lead into gold at the LHC

Near-miss collisions between high-energy lead nuclei at the LHC generate intense electromagnetic fields that can knock out protons and transform lead into fleeting quantities of gold nuclei

News
Physics
08 May, 2025

European Strategy for Particle Physics: community input received

Substantial contributions to the 2026 update of the European Strategy for Particle Physics set the stage for discussions that will define the next flagship collider at CERN

Press release
At CERN
17 April, 2025
At CERN
Press release
17 April, 2025

ATLAS gets under the hood of the Higgs mechanism

The detection of longitudinally polarised W boson production at the Large Hadron Collider is an important step towards understanding how the primordial electroweak symmetry broke, giving rise to the masses of elementary particles

News
Physics
10 April, 2025

The LHC experiment collaborations at CERN receive Breakthrough Prize

The Breakthrough Prize in Fundamental Physics was awarded to the ALICE, ATLAS, CMS and LHCb collaborations during a ceremony held in Los Angeles on 5 April

Press release
Knowledge sharing
07 April, 2025
Knowledge sharing
Press release
07 April, 2025

CERN releases report on the feasibility of a possible Future Circular Collider

Released today, a report of a study investigating the project’s feasibility will serve as input for the European Strategy for Particle Physics and be assessed by the CERN Council in the coming months

News
Accelerators
31 March, 2025