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Measurements of mass, width and gauge couplings of the W boson at LEP

Document type: Articulo

Abstract

We report on measurements of mass and total decay width of the W boson and of triple-gauge-boson couplings, γWW and ZWW, with the L3 detector at LEP. W-pair events produced in e+e− interactions between 161 GeV and 172GeV centre-of-mass energy are selected in a data sample corresponding to a total luminosity of 21.2 pb−1. The mass and total decay width of the W boson are determined to be MW = 80.75−0.27+0.26(exp.) ± 0.03 (LEP) GeV and ΓW = 1.74−0.78+0.88(stat.) ± 0.25(syst.)GeV, respectively. Limits on anomalous triple-gauge-boson couplings, γWW and ZWW, are determined, in particular −1.5 < δZ < 1.9 (95% CL), excluding vanishing ZWW coupling at more than 95% confidence level.

General information

Issue date: 6 de noviembre de 1997
Document language: English
Journal: Physics Letters B; vol. 413, no. 1–2
Origin: Facultad de Ciencias Exactas
ISSN: 0370-2693
Pages: 176-190
xmlui.dri2xhtml.METS-1.0.item-dc-subject: Física ; W boson ; riple-gauge-boson couplings ; L3 detector
Subjects: Ciencias Exactas

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Created: 10 de julio de 2019
Available since: 10 de julio de 2019
Please, use one of this identificators(URI) for cite o linking this item:
  • http://sedici.unlp.edu.ar/handle/10915/77891
  • https://doi.org/10.1016/S0370-2693(97)01082-4

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