Measurement of the W boson mass

Measurement of the W boson mass

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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 ev final states. We extract the W mass MW by fitting the transverse mass and transverse electron momentum spectra from a sample of...

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Bibliographic Details
Main Authors: Abbott, B, Abolins, M, Acharya, B, Adam, I, Adams, D, Adams, M, Ahn, S, Aihara, H, Alves, G, Amos, N, Anderson, E, Astur, R, Baarmand, M, Baden, A, Balamurali, V, Balderston, J, Baldin, B, Banerjee, S, Bantly, J, Barberis, E, Bartlett, J, Bazizi, K, Belyaev, A, Beri, S, Bertram, I
Format: Journal article
Language:English
Published: 1998
Description
Summary: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 ev final states. We extract the W mass MW by fitting the transverse mass and transverse electron momentum spectra from a sample of 28 323 W → ev decay candidates. We use a sample of 3563 dielectron events, mostly due to Z → ee decays, to constrain our model of the detector response. From the transverse mass fit we measure MW = 80.44±0.10(stat)±0.07(syst) GeV. Combining this with our previously published result from data taken in 1992-1993, we obtain MW = 80.43±0.11 GeV.

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