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Scientific article
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English

Measurement of the W boson mass with the Collider Detector at Fermilab

ContributorsCDF Collaboration
Publication date2001
Abstract

We present a measurement of the W boson mass using data collected with the CDF detector during the 1994–1995 collider run at the Fermilab Tevatron. A fit to the transverse mass spectrum of a sample of 30115 W⃗ eν events recorded in an integrated luminosity of 84 pb-1 gives a mass MW=80.473±0.065(stat)±0.092(syst)GeV/c2. A fit to the transverse mass spectrum of a sample of 14740 W⃗ μν events from 80 pb-1 gives a mass MW=80.465±0.100(stat)±0.103(syst)GeV/c2. The dominant contributions to the sys- tematic uncertainties are the uncertainties in the electron energy scale and the muon momentum scale, 0.075GeV/c2 and 0.085GeV/c2, respectively. The combined value for the electron and muon channel is MW=80.470±0.089GeV/c2. When combined with previously published CDF measurements, we obtain MW=80.433±0.079GeV/c2.

Citation (ISO format)
CDF Collaboration. Measurement of the <em>W</em> boson mass with the Collider Detector at Fermilab. In: Physical review. D. Particles, fields, gravitation, and cosmology, 2001, vol. 64, n° 05. doi: 10.1103/PhysRevD.64.052001
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accessLevelPublic
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ISSN of the journal1550-2368
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