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Measurement of the inclusive charmless and double-charm B branching ratios

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Measurement of the inclusive charmless and double-charm B branching ratios

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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	Colomer, M.
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	Lacasta Llácer, Carlos
dc.contributor.author	Martínez Vidal, Fernando
dc.contributor.author	Navas Concha, Sergio
dc.contributor.author	Ortuño, S.
dc.contributor.author	Salt Cairols, José
dc.date.accessioned	2014-03-31T10:10:10Z
dc.date.available	2014-03-31T10:10:10Z
dc.date.issued	1998
dc.identifier.citation	DELPHI Collaboration Alemany, R. Cabrera Urbán, Susana Castillo Giménez, María Victoria Cortina, E. Colomer, M. Ferrer Soria, Antonio Fuster Verdú, Juan A. García García, Carmen Gil, I. Hernández Rey, Juan José Higón Rodríguez, Emilio Lacasta, C. Martínez Vidal, Fernando Navas, S. Ortuño, S. Salt Cairols, José 1998 Measurement of the inclusive charmless and double-charm B branching ratios Physics Letters B 426 193 206
dc.identifier.uri	http://hdl.handle.net/10550/33834
dc.description.abstract	The DELPHI experiment at LEP has measured the inclusive charmless B hadron decay branching ratio, the B branching ratio into two charmed particles, and the total number of charmed particles per B decay, using the hadronic Z data taken between 1992 and 1995. The results are extracted from a fit to the b-tagging probability distribution based on the precise impact parameter measurements made using the microvertex detector. The inclusive charmless B branching ratio, including B decays into hidden charm (ccˉ), is measured to be 0.033±0.021. The B branching ratio into two open charmed particles is 0.136±0.042. The mean number of charmed particles per B decay (including hidden charm) is 1.147±0.041. After subtracting the B decay branching ratio into hidden charm, the charmless B branching ratio is found to be 0.007±0.021, compatible with the Standard Model expectation. Models that predict an additional contribution to the charmless B branching ratio of 0.037 or higher are excluded with at least 95\% confidence.
dc.relation.ispartof	Physics Letters B, 1998, vol. 426, p. 193-206
dc.subject	Física nuclear
dc.subject	Partícules (Física nuclear)
dc.title	Measurement of the inclusive charmless and double-charm B branching ratios
dc.type	journal article	es_ES
dc.date.updated	2014-03-31T10:10:10Z
dc.identifier.doi	10.1016/S0370-2693(98)00147-6
dc.identifier.idgrec	006648
dc.rights.accessRights	open access	es_ES
dc.identifier.url	10.1016/S0370-2693(98)00147-6