Particle's surprise mass threatens to upend the standard model

Data from an old experiment find that the mass of the W boson is higher than theory predicts, hinting at future breakthroughs. Data from an old experiment find that the mass of the W boson is higher than theory predicts, hinting at future breakthroughs.

Automated summary

Data from an old experiment show that the mass of the W boson is higher than predicted by theory, indicating potential future breakthroughs.