Measurement of the W Boson Mass

Abstract

We present a measurement of the mass of the $W$ boson using data collected with the CDF detector during the 1992-93 collider run at the Fermilab Tevatron. A fit to the transverse mass spectrum of a sample of 3268 {\mbox{$W\to \mu \nu$}} events recorded in an integrated luminosity of 19.7 pb${}^{-1}$ gives a mass $M_{W}^μ=80.310\pm0.205\mbox{~(stat.)}\pm0.130\mbox{~(syst.)} \ \mbox{GeV/c}^{2}$. A fit to the transverse mass spectrum of a sample of 5718 {\mbox{$W\to e\nu$}} events recorded in 18.2 pb${}^{-1}$ gives a mass $M_{W}^{e}=80.490\pm0.145\mbox{~(stat.)}\pm0.175\mbox{~(syst.)} \ \mbox{GeV/c}^{2}$. Combining the electron and muon results, accounting for correlated uncertainties, yields a mass $M_{W}=80.410\pm0.180 \ \mbox{GeV/c}^{2}$.

13 pages for letter, URL: http://www-cdf.fnal.gov/physics/pub95/cdf2928_wmass_prl_subm.ps, article submitted to PRD is apparently to long to post, see URL: http://www-cdf.fnal.gov/physics/pub95/cdf2975_wmass_prd_subm.ps

References in corpus (2)

• Observation of Top Quark Production in Pbar-P Collisions
• The Charge Asymmetry in W-Boson Decays Produced in p-pbar Collisions at sqrt(s) = 1.8 TeV

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