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Article
Title Measurement of the mass of the W boson in e+e collisions using the fully leptonic channel
Author(s) OPAL Collaboration  Afficher les 257 auteurs
Affiliation (CERN)
Publication 2003
In: Eur. Phys. J. C 26, 3 (2003) pp.321-330
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LEP ; OPAL
Abstract A novel method of determining the mass of the W boson in the W/sup + /W/sup -/ to l nu l' nu ' channel is presented and applied to 667 pb /sup -1/ of data recorded at center-of-mass energies in the range 183-207 GeV with the OPAL detector at LEP. The measured energies of charged leptons and the results of a new procedure based on an approximate kinematic reconstruction of the events are combined to give: M/sub W/=80.41+or-0.41+or-0.13 geV, where the first error is statistical and the second is systematic. The systematic error is dominated by the uncertainty on the lepton energy, which is calibrated using data, and the parameterization of the variables used in the fitting, which is obtained using Monte Carlo events. Both of these are limited by statistics. (20 refs).

Corresponding record in: Inspire ; INSPIRE


 Notice créée le 2003-06-06, modifiée le 2018-07-27



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