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Measurement of the Gamma (b anti-b) / Gamma (hadron) branching ratio of the Z by double hemisphere tagging

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Measurement of the Gamma (b anti-b) / Gamma (hadron) branching ratio of the Z by double hemisphere tagging

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dc.contributor.author	DELPHI Collaboration
dc.contributor.author	Cases Ruiz, Ramón
dc.contributor.author	Castillo Giménez, María Victoria
dc.contributor.author	Higón Rodríguez, Emilio
dc.contributor.author	Ferrer Soria, Antonio
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	2014-05-06T10:48:13Z
dc.date.available	2014-05-06T10:48:13Z
dc.date.issued	1995
dc.identifier.citation	DELPHI Collaboration Cases Ruiz, Manuel Ramón Castillo Giménez, María Victoria Higón Rodríguez, Emilio Ferrer Soria, Antonio 1995 Measurement of the Gamma (b anti-b) / Gamma (hadron) branching ratio of the Z by double hemisphere tagging Zeitschrift für Physik C-Particles and Fields 65 4 555 568
dc.identifier.uri	http://hdl.handle.net/10550/34919
dc.description.abstract	Two measurements of Γbb¯/Γhad are presented. Both measurements use 250000Z decays taken with the DELPHI detector in 1991 and rely mainly on the precision of the microvertex detector. One tagging method is as simple as possible so that background rates can be reliably predicted by simulation. The other one uses a more involved tagging technique and reduces the dependence on simulation as much as possible. Combining both results, Γbb¯/Γhad is found to be 0.2209±0.0041(stat.)±0.0042(syst.)±0.0018 Γcc¯ .
dc.relation.ispartof	Zeitschrift für Physik C-Particles and Fields, 1995, vol. 65, num. 4, p. 555-568
dc.subject	Partícules (Física nuclear)
dc.subject	Detectors de radiació
dc.title	Measurement of the Gamma (b anti-b) / Gamma (hadron) branching ratio of the Z by double hemisphere tagging
dc.type	journal article	es_ES
dc.date.updated	2014-05-06T10:48:13Z
dc.identifier.doi	10.1007/BF01578666
dc.identifier.idgrec	006562
dc.rights.accessRights	open access	es_ES