Direct measurement of the W boson width
(2009) Physical Review Letters — Vol. 103 (2009)
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- et. al.
- Abstract
- We present a direct measurement of the width of the W boson using the shape of the transverse mass distribution of W->enu candidates selected in 1 fb-1 of data collected with the D0 detector at the Fermilab Tevatron collider in ppbar collisions at sqrt{s}=1.96 TeV. We use the same methods and data sample that were used for our recently published W boson mass measurement, except for the modeling of the recoil, which is done with a new method based on a recoil library. Our result, 2.028 +- 0.072 GeV, is in agreement with the predictions of the standard model and is the most precise direct measurement result from a single experiment to date.
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Citations
Tanasijczuk, A. J., D0, & et al. (2009). Direct measurement of the W boson width. Physical Review Letters, 103. https://doi.org/10.1103/PhysRevLett.103.231802 (Original work published 2009)