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

CollaborationWith : Clark, Allan Geoffrey / Kambara, Hisanori / Speer, Thomas / Strumia Michelini, Federica / Wu, Xin
Published in Physical Review. D. 2001, vol. 64, no. 05
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.
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CDF COLLABORATION. Measurement of the W boson mass with the Collider Detector at Fermilab. In: Physical Review. D, 2001, vol. 64, n° 05. https://archive-ouverte.unige.ch/unige:37900

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Deposited on : 2014-06-17

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