A direct measurement of W boson decay width

Details A direct measurement of W boson decay width A direct measurement of W boson decay width

2002-04-08

arxiv.org/abs/hep-ex/0204009v1

Phys.Rev.D66:032008,2002

Physics

High Energy Physics

High Energy Physics - Experiment

12 pages, 6 figures

Scientific paper

10.1103/PhysRevD.66.032008

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

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