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Scientists just outside Chicago have found that the mass of a sub-atomic particle is not what it should be. The measurement is the first conclusive experimental result that is at odds with one of the most important and successful theories of modern physics. The team has found that the particle, known as a W boson, is more massive than the theories predicted. The scientists at the Fermilab Collider Detector (CDF) in Illinois have found only a tiny difference in the mass of the W Boson compared with what the theory says it should be - just 0.1%. But if confirmed...

The Fermilab Collider Detector obtained a result that could transform the current theory of physics Scientists just outside Chicago have found that the mass of a sub-atomic particle is not what it should be. The measurement is the first conclusive experimental result that is at odds with one of the most important and successful theories of modern physics. The team has found that the particle, known as a W boson, is more massive than the theories predicted. The result has been described as "shocking" by Prof David Toback, who is the project co-spokesperson. The discovery could lead to the development...