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Measurement of the multiplicity of gluons splitting to bottom quark in hadronic Z° decays

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Measurement of the multiplicity of gluons splitting to bottom quark in hadronic Z° decays

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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	Ferrer Soria, Antonio
dc.contributor.author	Fuster Verdú, Juan A.
dc.contributor.author	García García, Carmen
dc.contributor.author	Hernández Rey, Juan José
dc.contributor.author	Higón Rodríguez, Emilio
dc.contributor.author	Lacasta Llácer, Carlos
dc.contributor.author	Martínez Vidal, Fernando
dc.contributor.author	Navas Concha, Sergio
dc.contributor.author	Salt Cairols, José
dc.date.accessioned	2014-04-01T07:57:51Z
dc.date.available	2014-04-01T07:57:51Z
dc.date.issued	1997
dc.identifier.citation	DELPHI Collaboration Alemany, R. Cabrera Urbán, Susana Castillo Giménez, María Victoria Cortina, E. Ferrer Soria, Antonio Fuster Verdú, Juan A. García García, Carmen Hernández Rey, Juan José Higón Rodríguez, Emilio Lacasta Llácer, Carlos Martínez Vidal, Fernando Navas, S. Salt Cairols, José 1997 Measurement of the multiplicity of gluons splitting to bottom quark in hadronic Z° decays Physics Letters B 405 1-2 202 214
dc.identifier.uri	http://hdl.handle.net/10550/33894
dc.description.abstract	An inclusive measurement of the average multiplicity of bb pairs from gluons, gbb, in hadronic Z0 events collected by the DELPHI experiment at LEP, is presented. A counting technique, based on jet b-tagging in 4-jet events, has been used. Looking for secondary bottom production in events with production of any primary flavour, by requiring two b-tagged jets in well defined topological configurations, gave gbb = (0.21 +/- 0.11 (stat) +/- 0.09(syst)) %. This result was checked with a different method designed to select events with four b quarks in the final state. Agreement within the errors was found.
dc.relation.ispartof	Physics Letters B, 1997, vol. 405, num. 1-2, p. 202-214
dc.subject	Física nuclear
dc.subject	Partícules (Física nuclear)
dc.title	Measurement of the multiplicity of gluons splitting to bottom quark in hadronic Z° decays
dc.type	journal article	es_ES
dc.date.updated	2014-04-01T07:57:51Z
dc.identifier.doi	10.1016/S0370-2693(97)00608-4
dc.identifier.idgrec	006632
dc.rights.accessRights	open access	es_ES
dc.identifier.url	10.1016/S0370-2693(97)00608-4