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W pair production cross-section and W branching fractions in e(+)e(-) interactions at 189 GeV

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W pair production cross-section and W branching fractions in e(+)e(-) interactions at 189 GeV

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dc.contributor.author	DELPHI Collaboration
dc.contributor.author	Alemany Fernández, Reyes
dc.contributor.author	Cabrera Urbán, Susana
dc.contributor.author	Castillo Giménez, María Victoria
dc.contributor.author	Cortina Gil, Eduardo
dc.contributor.author	Costa Mezquita, María José
dc.contributor.author	Ferrer Soria, Antonio
dc.contributor.author	Fuster Verdú, Juan A.
dc.contributor.author	García García, Carmen
dc.contributor.author	Gil Botella, Inés
dc.contributor.author	Hernández Rey, Juan José
dc.contributor.author	Higón Rodríguez, Emilio
dc.contributor.author	Oyanguren Campos, Arantza
dc.contributor.author	Salt Cairols, José
dc.contributor.author	Tortosa Martínez, Pablo
dc.date.accessioned	2014-03-29T12:19:07Z
dc.date.available	2014-03-29T12:19:07Z
dc.date.issued	2000
dc.identifier.citation	DELPHI Collaboration Alemany, R. Cabrera Urbán, Susana Castillo Giménez, María Victoria Cortina, E. Costa, M. Ferrer Soria, Antonio Fuster Verdú, Juan A. García García, Carmen Gil, I. Hernández Rey, Juan José Higón Rodríguez, Emilio Oyanguren Campos, Arantza Salt Cairols, José ,Tortosa Martínez, Pablo, 2000 W pair production cross-section and W branching fractions in e(+)e(-) interactions at 189 GeV Physics Letters B 479 1-3 89 100
dc.identifier.uri	http://hdl.handle.net/10550/33799
dc.description.abstract	The cross-section for the process e+e- -> W+W- has been measured with the data sample collected by DELPHI at an average centre-of-mass energy of 189 GeV and corresponding to an integrated luminosity of 155 pb^{-1}. Based on the 2392 events selected as WW candidates, the cross-section for the doubly resonant process e+e- -> W+W- has been measured to be 15.83 +- 0.38 (stat) +- 0.20 (syst) pb. The branching fractions of the W decay were also measured and found to be in good agreement with the Standard Model expectation. From these a value of the CKM mixing matrix element \|V_{cs}\| = 1.001 +- 0.040 (stat) +- 0.020 (syst) was derived.
dc.relation.ispartof	Physics Letters B, 2000, vol. 479, num. 1-3, p. 89-100
dc.subject	Física nuclear
dc.subject	Partícules (Física nuclear)
dc.title	W pair production cross-section and W branching fractions in e(+)e(-) interactions at 189 GeV
dc.type	journal article	es_ES
dc.date.updated	2014-03-29T12:19:07Z
dc.identifier.doi	10.1016/S0370-2693(00)00314-2
dc.identifier.idgrec	006706
dc.rights.accessRights	open access	es_ES
dc.identifier.url	10.1016/S0370-2693(00)00314-2