QCD and W Mass Determination at LEP
Abstract
Description
Measurements of hadronic final state interactions in W-pair events at LEP are presented. In particular, different scenarios of colour reconnection are studied. The data agree with moderate colour reconnection effects. Extreme scenarios are ruled out, limiting the systematic uncertainty on the LEP W mass determination due to this effect. An updated measurement of the mass of the W boson at LEP yields 80.412 +/- 0.042 GeV.
Proceedings of the XXXVIIIth Rencontres de Moriond, 2003, QCD and Hadronic Interactions at High Energy, Ed. J. Tran Thanh Van, 4 pages, 3 figures
Proceedings of the XXXVIIIth Rencontres de Moriond, 2003, QCD and Hadronic Interactions at High Energy, Ed. J. Tran Thanh Van, 4 pages, 3 figures