A Measurement of the W Boson Mass

Details A Measurement of the W Boson Mass A Measurement of the W Boson Mass

1997-12-22

arxiv.org/abs/hep-ex/9712028v1

Phys.Rev.Lett.80:3008,1998

Physics

High Energy Physics

High Energy Physics - Experiment

11 pages, 5 figures

Scientific paper

10.1103/PhysRevLett.80.3008

We report a measurement of the W boson mass based on an integrated luminosity of 82 pb$^{-1}$ from \ppbar collisions at $\sqrt{s}=1.8$ TeV recorded in 1994--1995 by the \Dzero detector at the Fermilab Tevatron. We identify W bosons by their decays to $e\nu$ and extract the mass by fitting the transverse mass spectrum from 28,323 W boson candidates. A sample of 3,563 dielectron events, mostly due to Z to ee decays, constrains models of W boson production and the detector. We measure $\mw=80.44\pm0.10(stat)\pm0.07(syst)$~GeV. By combining this measurement with our result from the 1992--1993 data set, we obtain $\mw=80.43\pm0.11$ GeV.

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