We summarize and combine direct measurements of the mass of the W boson in s√=1.96TeV proton-antiproton collision data collected by CDF and D0 experiments at the Fermilab Tevatron Collider. Earlier measurements from CDF and D0 are combined with the two latest, more precise measurements: a CDF measurement in the electron and muon channels using data corresponding to 2.2fb−1 of integrated luminosity, and a D0 measurement in the electron channel using data corresponding to 4.3fb−1 of integrated luminosity. The resulting Tevatron average for the mass of the W boson is $MW = 80,387 pm 16 ext{MeV}$. Including measurements obtained in electron-positron collisions at LEP yields the most precise value of $MW = 80,385 pm 15 ext{MeV}$.
Aaltonen, T., Vizan Garcia, J. M., The CDF Collaboration, & et al. (2013). Combination of CDF and D0 W-Boson Mass Measurements. Physical Review. D, Particles, Fields, Gravitation and Cosmology, 88(5), 052018 [11 pages]. https://doi.org/10.1103/PhysRevD.88.052018 (Original work published 2013)