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Measurement of V-cb from the decay process (B)over-bar(0)-> D(*+)l(-)(nu)over-bar

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Measurement of V-cb from the decay process (B)over-bar(0)-> D(*+)l(-)(nu)over-bar

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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	Costa Mezquita, María José
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	Gil Botella, Inés
dc.contributor.author	Hernández Rey, Juan José
dc.contributor.author	Higón Rodríguez, Emilio
dc.contributor.author	Oyanguren Campos, Arantza
dc.contributor.author	Salt Cairols, José
dc.contributor.author	Tortosa Martínez, Pablo
dc.date.accessioned	2014-03-29T11:18:43Z
dc.date.available	2014-03-29T11:18:43Z
dc.date.issued	2001
dc.identifier.citation	DELPHI Collaboration Alemany, R. Cabrera, S. Castillo Giménez, María Victoria Costa Mezquita, María José Cortina, E. Ferrer Soria, Antonio Fuster Verdú, Juan A. García García, Carmen Gil, I. Hernández Rey, Juan José Higón Rodríguez, Emilio Oyanguren Campos, Arantza Salt Cairols, José ,Tortosa Martínez, Pablo, 2001 Measurement of V-cb from the decay process (B)over-bar(0)-> D(*+)l(-)(nu)over-bar Physics Letters B 510 1-4 55 74
dc.identifier.uri	http://hdl.handle.net/10550/33783
dc.description.abstract	A new precise measurement of \|V_{cb}\| and of the branching ratio BR(\bar{B^0} -> D^{+} \ell^- \bar{\nu_\ell}) has been performed using a sample of about 5000 semileptonic decays \bar{B^0} -> D^{+} \ell^- \bar{\nu_\ell}, selected by the DELPHI detector at LEP I by tagging the soft pion from D^{+} -> D^0 \pi^+. The results are: V_{cb}=(39.0 +/- 1.5 (stat.) ^{+2.5}_{-2.6} (syst. exp.) +/- 1.3 (syst. th.)) x 10^{-3} BR(\bar{B^0} -> D^{+} \ell^- \bar{\nu_\ell})=(4.70 +/- 0.13 (stat.) ^{+0.36}_{-0.31} (syst. exp.))% The analytic dependences of the differential cross-section and of the Isgur Wise form factor as functions of the variable w = v_{B^0}.v_{D^*} have also been obtained by unfolding the experimental resolution.
dc.relation.ispartof	Physics Letters B, 2001, vol. 510, num. 1-4, p. 55-74
dc.subject	Física nuclear
dc.subject	Partícules (Física nuclear)
dc.title	Measurement of V-cb from the decay process (B)over-bar(0)-> D(*+)l(-)(nu)over-bar
dc.type	journal article	es_ES
dc.date.updated	2014-03-29T11:18:43Z
dc.identifier.doi	10.1016/S0370-2693(01)00569-X
dc.identifier.idgrec	006737
dc.rights.accessRights	open access	es_ES
dc.identifier.url	10.1016/S0370-2693(01)00569-X