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Amoroso, S.; Andari, N.; Barter, W.; Bendavid, J.; Boonekamp, M.; Farry, S.; Grünewald, M.; Hays, C.; Hunter, R.; Kretzschmar, J.; Lupton, O.; Pili, M.; Ramos Pernas, M.; Tuchming, B.; Vesterinen, M.; Vicini, A.; Wang, C.; Xu, M.
European physical journal. C, Particles and fields, 05/2024, Volume: 84, Issue: 5Journal Article
The compatibility of W -boson mass measurements performed by the ATLAS, LHCb, CDF, and D0 experiments is studied using a coherent framework with theory uncertainty correlations. The measurements are combined using a number of recent sets of parton distribution functions (PDF), and are further combined with the average value of measurements from the Large Electron–Positron collider. The considered PDF sets generally have a low compatibility with a suite of global rapidity-sensitive Drell–Yan measurements. The most compatible set is CT18 due to its larger uncertainties. A combination of all m W measurements yields a value of m W = 80 , 394.6 ± 11.5 MeV with the CT18 set, but has a probability of compatibility of 0.5% and is therefore disfavoured. Combinations are performed removing each measurement individually, and a 91% probability of compatibility is obtained when the CDF measurement is removed. The corresponding value of the W boson mass is 80 , 369.2 ± 13.3 MeV, which differs by 3.6 σ from the CDF value determined using the same PDF set.
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