An unexpected imbalance in how particles containing the heaviest quarks decay might reveal exotic influences — and perhaps help to explain why matter, rather than antimatter, dominates the Universe.
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Peskin, M. Song of the electroweak penguin. Nature 452, 293–294 (2008). https://doi.org/10.1038/452293a
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DOI: https://doi.org/10.1038/452293a
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