Extraction of the width of the W boson from measurements of sigma(p anti-p ---> W + X) x B(W ---> e neutrino) and sigma(p anti-p ---> Z + X) x B(Z ---> e e) and their ratio

The D0 collaboration
Phys.Rev.D 61 (2000) 072001, 2000.

Abstract (data abstract)
Fermilab-Collider. Measurement of the inclusive cross sections times branching fractions into electrons for W+- and Z0 bosons produced in PBAR P collisions at c.m. energy 1800 MeV (a smaller sample gives the cross sections at 630 GeV). The data were taken during the 1994-95 running period and have an integrated luminosity of 84.5 pb-1. The ratio of the cross sections is determined. Combining these data with the 1992-93 data gives a W boson width of 2.152 +- 0.066 GeV and a 95 pct C.L. upper limit of the invisible W width of 0.191 GeV.

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