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A precise measurement of the Tau lepton lifetime

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A precise measurement of the Tau lepton lifetime

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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	Alemany Fernández, Reyes
dc.contributor.author	Cabrera Urbán, Susana
dc.contributor.author	Cortina Gil, Eduardo
dc.contributor.author	Fuster Verdú, Juan A.
dc.contributor.author	García García, Carmen
dc.contributor.author	Hernández Rey, Juan José
dc.contributor.author	Lacasta Llácer, Carlos
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.date.accessioned	2014-04-08T10:45:53Z
dc.date.available	2014-04-08T10:45:53Z
dc.date.issued	1996
dc.identifier.citation	DELPHI Collaboration Castillo Giménez, María Victoria Ferrer Soria, Antonio Higón Rodríguez, Emilio 1996 A precise measurement of the Tau lepton lifetime Physics Letters B 365 1-4 448 460
dc.identifier.uri	http://hdl.handle.net/10550/34483
dc.description.abstract	The tau lepton lifetime has been measured using three different methods with the DELPHI detector. Two measurements of one-prong decays are combined, accounting for correlations, giving a result of ττ = 291.8 ± 3.3 (stat.) ± 2.0(sys.) fs while the decay length distribution of three-prong decays gives the result ττ = 286.7 ± 4.9 (stat.) ±3.3 (sys.) fs. Combining the results presented here with previous DELPHI measurements, we get ττ = 291.4 ± 3.0 fs and find that the ratio of the coupling constant for tau decay relative to that for muon decay is 0.990 ± 0.009, compatible with lepton universality.
dc.relation.ispartof	Physics Letters B, 1996, vol. 365, num. 1-4, p. 448-460
dc.subject	Física nuclear
dc.subject	Partícules (Física nuclear)
dc.title	A precise measurement of the Tau lepton lifetime
dc.type	journal article	es_ES
dc.date.updated	2014-04-08T10:45:53Z
dc.identifier.doi	10.1016/0370-2693(95)01434-9
dc.identifier.idgrec	006587
dc.rights.accessRights	open access	es_ES
dc.identifier.url	10.1016/0370-2693(95)01434-9