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A direct measurement of W boson decay width

Dzero Collaboration
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Abstract

Based on 85 pb$^{-1}$ data of \ppbar collisions at $\sqrt{s}=1.8$ \tev\ collected using the DØdetector at Fermilab during the 1994-1995 run of the Tevatron, we present a direct measurement of the total decay width of the \wb\ boson, $Γ_W$. The width is determined from the transverse mass spectrum in the $W \to e+ν_e$ decay channel and found to be $Γ_W = 2.23^{+ 0.15}_{- 0.14}$(stat.)$\pm 0.10$(syst.)GeV, consistent with the expectation from the standard model.

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Dzero Collaboration. 2002-04-08. A direct measurement of W boson decay width. https://doi.org/10.1103/physrevd.66.032008

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