English

A Measurement of the W Boson Mass

High Energy Physics - Experiment 2008-11-26 v1

Abstract

We present a measurement of the W boson mass using data collected by the D0 experiment at the Fermilab Tevatron during 1994--1995. We identify W bosons by their decays to eνe\nu final states. We extract the W mass, M(W), by fitting the transverse mass and transverse electron momentum spectra from a sample of 28,323 W to eνe\nu decay candidates. We use a sample of 3,563 dielectron events, mostly due to Z to ee decays, to constrain our model of the detector response. From the transverse mass fit we measure M(W) = 80.44±0.10(stat)±0.07(syst)80.44\pm0.10(stat)\pm0.07(syst) GeV. Combining this with our previously published result from data taken in 1992--1993, we obtain M(W) =80.43±0.11= 80.43\pm0.11 GeV.

Keywords

Cite

@article{arxiv.hep-ex/9712029,
  title  = {A Measurement of the W Boson Mass},
  author = {B. Abbott and M. Abolins and B. S. Acharya},
  journal= {arXiv preprint arXiv:hep-ex/9712029},
  year   = {2008}
}

Comments

49 pages, 77 figures