par Clerbaux, Barbara 
; [et al.]
Référence European Physical Journal C. Particles and Fields, 47, page (309-335)
Publication Publié, 2006
; [et al.]Référence European Physical Journal C. Particles and Fields, 47, page (309-335)
Publication Publié, 2006
Article révisé par les pairs
| Résumé : | The mass of the W boson is determined from the direct reconstruction of W decays in WW→qq̄qq̄ and WW→ lνqq̄ events in e+e-collisions at LEP. The data sample corresponds to an integrated luminosity of 683 pb-1collected with the ALEPH detector at centre-of-mass energies up to 209 GeV. To minimise any effect from colour reconnection a new procedure is adopted in which low energy particles are not considered in the mass determination from the qq̄qq̄ channel. The combined result from all channels is equation presented, where FSI represents the possible effects of final state interactions in the qq̄qq̄ channel and LEP indicates the uncertainty in the beam energy. From two-parameter fits to the W mass and width, the W width is found to be equation presented. |
