Precise measurements of the W mass at the Tevatron and indirect   constraints on the Higgs mass
  I describe the latest D0 and CDF W boson mass measurements. The D0 measurement is performed with $4.3\, fb^{-1}$ of integrated luminosity in the electron decay channel with a data set of $1.68\times 10^{6}$ W candidates. The value of the W boson mass measured by D0 is $M_W = 80.375\pm 0.023\, GeV$ when combined with the previously analyzed $1\, fb^{-1}$ of integrated luminosity. The CDF measurement uses $2.2\, fb^{-1}$ of integrated luminosity in both electron and muon decay channels with a total of $1.1\times 10^{6}$ W candidates. The value of the W boson mass measured by CDF is $M_W = 80.387\pm 0.019\, GeV$. I report the combination of these two measurements with previous Tevatron measurements and with the LEP measurements of the W boson mass. The new world average is $M_W = 80.385\pm 0.015\, GeV$. I discuss the implications of the new measurement to the indirect measurement of the Standard Model Higgs boson mass. 
Rafael Lopes de Sa (for the CDF Collaboration, for the D0   Collaboration)
hep-ex