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Clocking nature’s heaviest elementary particle
Clocking nature’s heaviest elementary particleThe CMS detector (Image: CERN)In the first study of its kind at the Large Hadron Collider (LHC), the CMS collaboration has tested whether top quarks adhere...
View ArticleThe other 99%
The other 99%Atoms are made up of protons and neutrons orbited by electrons, which are thousands of times lighter. But that’s not the whole story. Protons and neutrons are themselves composed of trios...
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European Strategy for Particle Physics: Open Symposium in Venice
European Strategy for Particle Physics: Open Symposium in Venice Registration is now open for the Open Symposium on the 2026 update of the European Strategy for Particle Physics.The Symposium is a...
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Observing triplets of weak bosons
Observing triplets of weak bosonsA three-vector-boson event recorded by ATLAS, with one W boson decaying to an electron and a neutrino, one W boson decaying to a muon and a neutrino, and a Z boson...
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A bestiary of exotic hadrons
A bestiary of exotic hadronsA simplified visualisation of the 23 exotic hadrons discovered so far at the LHC. Each particle contains at least one charm quark and a mixture of up, down and strange...
View ArticleA new piece in the matter–antimatter puzzle
A new piece in the matter–antimatter puzzleYesterday, at the annual Rencontres de Moriond conference taking place in La Thuile, Italy, the LHCb collaboration at CERN reported a new milestone in our...
View ArticleSymmetry between up and down quarks is more broken than expected
Symmetry between up and down quarks is more broken than expected In late 2023, Wojciech Brylinski was analysing data from the NA61/SHINE collaboration at CERN for his thesis when he noticed an...
View ArticleCMS finds unexpected excess of top quarks
CMS finds unexpected excess of top quarks The CMS collaboration at CERN has observed an unexpected feature in data produced by the Large Hadron Collider (LHC), which could point to the existence of the...
View ArticleATLAS gets under the hood of the Higgs mechanism
ATLAS gets under the hood of the Higgs mechanismThe discovery of the Higgs boson by the ATLAS and CMS collaborations at CERN in 2012 opened a new window on the innermost workings of the Universe. It...
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Hans Gutbrod (1942 – 2025)
Hans Gutbrod (1942 – 2025) Hans Gutbrod at the celebration of 30 years of heavy ions at CERN, held on 9 November 2016. (Image: CERN)Hans Gutbrod, a pioneer of heavy-ion physics from its beginnings in...
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