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

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

The new calculation, made at the Large Hadron Collider (LHC) near Geneva, could help solve a niggling mystery about this ...

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

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” ...

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 ...

A new hypothesis has been proposed suggesting that 'dark matter,' a concept that explains the birth of the universe and the ...

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

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 ...