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Crack index in the Standard Model disappears in LHC data

Crack index in the Standard Model disappears in LHC data

A detector for the LHCb experiment under construction.Credit: Brice, Maximilian; CERN A once-promising clue to new physics from the Large Hadron Collider (LHC), the world’s largest particle accelerator, has melted, dashing one of physicists’ best hopes for a major discovery. The apparent anomaly was an unexpected difference in the behavior of electrons and their more …

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Studying muonium to reveal new physics beyond the Standard Model

Studying muonium to reveal new physics beyond the Standard Model

Muonium frequency sweep at 22.5 W in the range of 200 to 800 MHz. The adjusted black line is with, the gray line without the 3Scontribution. The error bars correspond to the statistical error of counting. The colored areas represent the underlying contributions of 2S−2P1/2 transitions, namely 583 MHz (blue), 1140 MHz (orange), 1326 MHz …

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