News
News
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
CMS finds unexpected excess of top quarks
Data from the CMS experiment at CERN’s Large Hadron Collider reveals an intriguing excess of top-quark pairs, hinting at the first observation of a composite particle with unique properties
Symmetry between up and down quarks is more broken than expected
Surprising results from the NA61/SHINE collaboration at CERN show that this so-called isospin asymmetry could point to gaps in physicists’ understanding of how quarks and gluons combine
A new piece in the matter–antimatter puzzle
The LHCb experiment at CERN has revealed a fundamental asymmetry in the behaviour of particles called baryons
A bestiary of exotic hadrons
The LHC is engaged in a complex quest to understand the exotic offspring of one of the fundamental forces of nature
Observing triplets of weak bosons
ATLAS reports the first observation of a Z boson accompanied by two other carriers of the weak force
European Strategy for Particle Physics: Open Symposium in Venice
Registration is now open for the Open Symposium in Venice from 23 to 27 June 2025
The other 99%
Near-miss collisions at the Large Hadron Collider are shedding light on the dynamics of gluons, which contribute 99% to the mass of protons and neutrons
Clocking nature’s heaviest elementary particle
The CMS collaboration has tested whether top quarks play by Einstein’s rules all day and all night
The measurement of a lifetime
New ATLAS measurement of the lifetime of the electrically neutral beauty meson is the most precise to date