Measurement of theWboson mass

This paper presents a measurement of the mass of the W boson using data collected with the CDF detector during the 1992--1993 collider run at the Fermilab Tevatron. A fit to the transverse mass spectrum of a sample of 3268 W\\ensuremath{\\rightarrow}\\ensuremath{\\mu}\\ensuremath{\\nu} events recorded in an integrated luminosity of 19.7 ${\\mathrm{pb}}^{\\mathrm{\\ensuremath{-}}1}$ gives ${\\mathit{M}}_{\\mathit{W}}^{\\mathrm{\\ensuremath{\\mu}}}$=80.310\\ifmmode\\pm\\else\\textpm\\fi{}0.205 (stat)\\ifmmode\\pm\\else\\textpm\\fi{}0.130 (syst) GeV/${\\mathit{c}}^{2}$. A fit to the transverse mass spectrum of a sample of 5718 W\\ensuremath{\\rightarrow}e\\ensuremath{\\nu} events recorded in 18.2 ${\\mathrm{pb}}^{\\mathrm{\\ensuremath{-}}1}$ gives ${\\mathit{M}}_{\\mathit{W}}^{\\mathit{e}}$=80.490\\ifmmode\\pm\\else\\textpm\\fi{}0.145 (stat)\\ifmmode\\pm\\else\\textpm\\fi{}0.175 (syst) GeV/${\\mathit{c}}^{2}$. Combining the muon and electron results, accounting for correlated uncertainties, yields ${\\mathit{M}}_{\\mathit{W}}$=80.410\\ifmmode\\pm\\else\\textpm\\fi{}0.180 GeV/${\\mathit{c}}^{2}$.