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Particle physics

Electrons are not ambidextrous

The best low-energy measurement yet obtained of the electroweak mixing angle — a central parameter of the standard model of particle physics — is the last hurrah for Stanford's powerful two-mile linear accelerator.

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Figure 1: Measurements of the weak mixing angle.

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Czarnecki, A., Marciano, W. Electrons are not ambidextrous. Nature 435, 437–438 (2005). https://doi.org/10.1038/435437a

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