A recent measurement of a fundamental particle called the W boson appears to defy the Standard Model of particle physics, our current understanding of how the basic building blocks of the universe interact.
The scientists at the Fermilab Collider Detector (CDF) in Illinois, USA have found that elusive W boson has a slightly (1%) higher mass (80,433,000 electron volts) than predicted in the Standard Model (80,357,000 electron volts).
The difference is tiny but in the world of particle physics, it is a huge anomaly. This means that the Standard Model may be in for a massive overhaul.
