Measurement of the W-pair production cross section and W-decay branching fractions in e+e− interactions at √s = 189 GeV

The data collected by the L3 experiment at LEP at a centre-of-mass energy of 188.6 GeV are used to measure the W-pair production cross section and the W-boson decay branching fractions. These data correspond to an integrated luminosity of 176.8 pb−1. The total cross section for W-pair production, co...

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Detalles Bibliográficos
Autores principales:	Dova, María Teresa, L3 Collaboration
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2000
Materias:	Ciencias Exactas Física W-pair production cross section W-decay branching fractions L3 experiment at LEP
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/75726
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-75726
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Ciencias Exactas Física W-pair production cross section W-decay branching fractions L3 experiment at LEP
spellingShingle	Ciencias Exactas Física W-pair production cross section W-decay branching fractions L3 experiment at LEP Dova, María Teresa L3 Collaboration Measurement of the W-pair production cross section and W-decay branching fractions in e+e− interactions at √s = 189 GeV
topic_facet	Ciencias Exactas Física W-pair production cross section W-decay branching fractions L3 experiment at LEP
description	The data collected by the L3 experiment at LEP at a centre-of-mass energy of 188.6 GeV are used to measure the W-pair production cross section and the W-boson decay branching fractions. These data correspond to an integrated luminosity of 176.8 pb−1. The total cross section for W-pair production, combining all final states, is measured to be σWW = 16.24 ± 0.37 (stat.) ± 0.22 (syst.) pb. Including our data collected at lower centre-of-mass energies, the hadronic branching fraction of the W-boson is determined to be B(W → qq) = [68.20 ± 0.68 (stat.) ± 0.33 (syst.)]%. The results agree with the Standard Model predictions.
format	Articulo Articulo
author	Dova, María Teresa L3 Collaboration
author_facet	Dova, María Teresa L3 Collaboration
author_sort	Dova, María Teresa
title	Measurement of the W-pair production cross section and W-decay branching fractions in e+e− interactions at √s = 189 GeV
title_short	Measurement of the W-pair production cross section and W-decay branching fractions in e+e− interactions at √s = 189 GeV
title_full	Measurement of the W-pair production cross section and W-decay branching fractions in e+e− interactions at √s = 189 GeV
title_fullStr	Measurement of the W-pair production cross section and W-decay branching fractions in e+e− interactions at √s = 189 GeV
title_full_unstemmed	Measurement of the W-pair production cross section and W-decay branching fractions in e+e− interactions at √s = 189 GeV
title_sort	measurement of the w-pair production cross section and w-decay branching fractions in e+e− interactions at √s = 189 gev
publishDate	2000
url	http://sedici.unlp.edu.ar/handle/10915/75726
work_keys_str_mv	AT dovamariateresa measurementofthewpairproductioncrosssectionandwdecaybranchingfractionsineeinteractionsats189gev AT l3collaboration measurementofthewpairproductioncrosssectionandwdecaybranchingfractionsineeinteractionsats189gev
bdutipo_str	Repositorios
_version_	1764820486688079872

Measurement of the W-pair production cross section and W-decay branching fractions in e+e− interactions at √s = 189 GeV

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