University of Birmingham > Talks@bham > Particle Physics Seminars > Precision Measurement of the W Boson Mass at CDF

Precision Measurement of the W Boson Mass at CDF

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If you have a question about this talk, please contact Prof Ian Kenyon.

The W boson mass is a crucial parameter in the standard model of particle physics, providing constraints on the mass of the Higgs boson as well as on new physics models via quantum loop corrections. We have measured the W boson mass using data corresponding to 2.2/fb of integrated luminosity collected with the CDF II detector at the Fermilab Tevatron. The measurement, performed using electron and muon decays of W bosons, yields a mass of 80387�19 MeV. This represents the single most precise measurement of the W boson mass ever performed, significantly surpassing the precision of all prior measurements combined. An updated world average of the W boson mass, including all recent Tevatron measurements, as well as the resulting standard model implications, will be presented.

This talk is part of the Particle Physics Seminars series.

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