High precision measurement of the W-boson mass with the CDF II detector
October 20, 2022
June 15, 2023
The mass of the W boson, a mediator of the weak force between elementary particles, is tightly
constrained by the symmetries of the standard model of particle physics. We measure the W boson mass to be 80433.5 ± 9.4 MeV using data corresponding to 8.8/fb of integrated luminosity √s = 1.96 TeV with the CDF II detector at the Fermilab Tevatron collider. The measurement is in tension with the prediction of the standard collected in proton-antiproton collisions at model.
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