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A Measurement of the tau leptonic branching fractions

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A Measurement of the tau leptonic branching fractions

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dc.contributor.author	DELPHI Collaboration
dc.contributor.author	Castillo Giménez, María Victoria
dc.contributor.author	Ferrer Soria, Antonio
dc.contributor.author	Higón Rodríguez, Emilio
dc.contributor.author	Chrin, J. T. M.
dc.contributor.author	Cortina Gil, Eduardo
dc.contributor.author	Ferrer Soria, Antonio
dc.contributor.author	Fuster Verdú, Juan A.
dc.contributor.author	García García, Carmen
dc.contributor.author	Gómez Cadenas, Juan José
dc.contributor.author	Hernández Rey, Juan José
dc.contributor.author	Hernando Morata, José Ángel
dc.contributor.author	Lacasta Llácer, Carlos
dc.contributor.author	Lozano Bahilo, José Julio
dc.contributor.author	Martínez Vidal, Fernando
dc.contributor.author	Martí García, Salvador
dc.contributor.author	Navas Concha, Sergio
dc.contributor.author	Salt Cairols, José
dc.contributor.author	Valls Ferrer, Juan Antonio
dc.date.accessioned	2014-04-29T12:12:01Z
dc.date.available	2014-04-29T12:12:01Z
dc.date.issued	1995
dc.identifier.citation	DELPHI Collaboration Castillo Giménez, María Victoria Ferrer Soria, Antonio Higón Rodríguez, Emilio 1995 A Measurement of the tau leptonic branching fractions Physics Letters B 357 4 715 724
dc.identifier.uri	http://hdl.handle.net/10550/34772
dc.description.abstract	A sample of 25000 \Z\rightarrow\tt events collected by the DELPHI experiment at LEP in 1991 and 1992 is used to measure the leptonic branching fractions of the \tau lepton. The results are B(\TEL) = (17.51 \pm 0.39)\% and B(\tau\rightarrow \mu\nu\bar{\nu}) = (17.02 \pm 0.31)\%. The ratio of the muon and electron couplings to the weak charged current is measured to be g_{\mu}/g_{e} = 1.000 \pm 0.013, satisfying e-\mu universality. The average leptonic branching fraction corrected to the value for a massless lepton, assuming e-\mu universality, is found to be B(\tau\rightarrow l \nu\bar{\nu}) = (17.50 \pm 0.25)\%.
dc.relation.ispartof	Physics Letters B, 1995, vol. 357, num. 4, p. 715-724
dc.subject	Física nuclear
dc.subject	Partícules (Física nuclear)
dc.title	A Measurement of the tau leptonic branching fractions
dc.type	journal article	es_ES
dc.date.updated	2014-04-29T12:12:01Z
dc.identifier.doi	10.1016/0370-2693(95)00987-V
dc.identifier.idgrec	006581
dc.rights.accessRights	open access	es_ES