Two kilometers beneath the Canadian Shield, inside a nickel mine turned physics laboratory, a set of silicon and germanium ...

A new calculation helps narrow down the mass of the W boson, one of the heaviest fundamental particles in the universe ...

Fermilab’s Mu2e experiment has reached a critical assembly stage with its 60-ton cosmic-ray veto system in the detector hall, ...

Researchers at the US Department of Energy’s (DOE) Argonne National Laboratory have successfully commissioned a “giant cage” ...

When fundamental particles are heavier or lighter than expected, physicists' understanding of the universe can tip into the ...

Decades of weird experimental results appeared to support the existence of the sterile neutrino, a hypothetical particle that ...

The muon collider was once dismissed as impossible, but is now gaining steam as the successor to the Large Hadron Collider.

Behind every scientific breakthrough is a long trail of dead ends. Just ask particle physicists — or the Austrian farmer who ...

Researchers at the Large Hadron Collider (LHC) have discovered a new particle, the Ξ cc ⁺, (“Xi cc plus”), a heavier cousin of the proton. The particle’s fleeting existence had made it invisible for ...

An international collaboration, including Northwestern University, has reached a critical milestone in the search for dark matter, the mysterious substance that makes up about 85% of all matter in the ...