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Measurement of the W mass at LEP

The mass of the W boson is measured using W pair events collected with the ALEPH, DELPHI, L3 and OPAL detectors at LEP2. Three methods are used: the cross section method, the lepton energy spectrum method and the direct reconstruction method, where the latter is described more in detail. For data co...

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Detalles Bibliográficos
Autor principal: Przysiezniak, H
Lenguaje:eng
Publicado: 2000
Materias:
Acceso en línea:http://cds.cern.ch/record/516351
Descripción
Sumario:The mass of the W boson is measured using W pair events collected with the ALEPH, DELPHI, L3 and OPAL detectors at LEP2. Three methods are used: the cross section method, the lepton energy spectrum method and the direct reconstruction method, where the latter is described more in detail. For data collected at E/sub cm/=161, 172 and 183 GeV, the following combined preliminary result is obtained: M/sub W//sup LEP/=80.37+or-0.08 GeV/c/sup 2/. (5 refs).