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Preliminary charged particle multiplicity in $e^+e^- \rightarrow W^+W^-$

The charged particle multiplicity and momentum distribution of fully hadronic and semi-leptonic W+W- decays is measured at the ALEPH experiment from $\sqrt{s}$=189 GeV to 207 GeV. The data is compared with Monte Carlo simulations with and without colour reconnection. The combined data sample of 625...

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Detalles Bibliográficos
Autor principal: CERN. Geneva. ALEPH
Lenguaje:eng
Publicado: 2002
Materias:
XX
Acceso en línea:http://cds.cern.ch/record/644888
Descripción
Sumario:The charged particle multiplicity and momentum distribution of fully hadronic and semi-leptonic W+W- decays is measured at the ALEPH experiment from $\sqrt{s}$=189 GeV to 207 GeV. The data is compared with Monte Carlo simulations with and without colour reconnection. The combined data sample of 625 pb^-1 at $<\sqrt{s}>$=198 GeV is compatible with the Monte Carlo predictions over most of the momenta spectra.