W pair production cross-section and W branching fractions in e+ e- interactions at 183-GeV

Abreu, P.;Cortina Gil, Eduardo;DELPHI Collaboration;et.al.
(1999) Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics — Vol. 456, n° 2-4, p. 310-321 (1999)

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Abstract
The cross-section for the process e+e−→W+W− has been measured with the data sample collected by DELPHI at an average centre-of-mass energy of 182.65 GeV and corresponding to an integrated luminosity of 53 pb−1. Based on the 770 events selected as WW candidates, the cross-section for the doubly resonant process View the MathML source has been measured and found to be in good agreement with the Standard Model expectation. The branching fractions of the W decay were also measured. From these a value of the CKM mixing matrix element View the MathML source was derived. Our previously published WW cross-section measurements and the derived measurement of mW have been revised and updated with the present cross-section measurement to yield View the MathML source.
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Abreu, P., Cortina Gil, E., DELPHI Collaboration, & et al. (1999). W pair production cross-section and W branching fractions in e+ e- interactions at 183-GeV. Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, 456(2-4), 310-321. https://doi.org/10.1016/S0370-2693(99)00488-8 (Original work published 1999)