After years of confusion, a new study confirms the proton is tinier than once thought. That enables a test of the standard model of particle physics.

Two independent lines of evidence from the world’s most powerful particle experiments are converging on the same ...

Scientists at CERN, the home of the Large Hadron Collider, have just observed an astoundingly rare phenomenon at the subatomic level that could lead to a new understanding of the standard model of ...

CERN’s calculation of the W boson’s mass agrees with theory, contradicting a previous anomaly that had raised the possibility of new physics. Particle’s surprise mass threatens to upend the standard ...