QCD and W Mass Determination at LEP

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...

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Detalles Bibliográficos
Autor principal: Straessner, Arno
Lenguaje:eng
Publicado: 2003
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/613912
Descripción
Sumario: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.

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