par Abreu, Pedro;Bertrand, Daniel 
; [et al.]
Référence Physics letters. Section B, 456, page (310-321)
Publication Publié, 1999
; [et al.]Référence Physics letters. Section B, 456, page (310-321)
Publication Publié, 1999
Article révisé par les pairs
| Résumé : | 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 δ(e+e-→W+W-) = 15.86 ± 0.69 (stat) ± 0.26 (syst)pb 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 \Vcs\ = 0.985 ± 0.073 (stat) ± 0.025 (syst) 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 mW = 80.49 ± 0.43(stat) ± 0.09(syst) ± 0.03(LEP)GeV/c2. © 1999 Published by Elsevier Science B.V. All rights reserved. |
