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A measurement of b+ and b-0 lifetimes using (d)over-bar-l(+) events

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A measurement of b+ and b-0 lifetimes using (d)over-bar-l(+) events

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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	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	2014-05-14T09:14:05Z
dc.date.available	2014-05-14T09:14:05Z
dc.date.issued	1995
dc.identifier.citation	DELPHI Collaboration Castillo Giménez, María Victoira Ferrer Soria, Antonio Higón Rodríguez, Emilio 1995 A measurement of b+ and b-0 lifetimes using (d)over-bar-l(+) events Zeitschrift für Physik C-Particles and Fields 68 1 13 23
dc.identifier.uri	http://hdl.handle.net/10550/35186
dc.description.abstract	A measurement of B meson lifetimes is presented using data collected from 1991 to 1993 by the DELPHI detector at the LEP collider. Samples of events with a D meson and a lepton in the same jet are selected where D¯0ℓ+ and D*ℓ+ events originate mainly from the semileptonic decays of B+ and B0 mesons, respectively. From the reconstructed B decay length and the estimated B momentum, taking into account the dilution due to B decays into D¯∗∗ℓ+v , the following B meson lifetimes and lifetime ratio are measured: τ(B+)=1.61+0.16−0.16(stat.)±0.12(syst.)psτ(B0)=1.61+0.14−0.13(stat.)±0.08(syst.)psτ(B+)/τ(B0)=1.00+0.17−0.15(stat.)±0.10(syst.) and an average lifetime of B+ and B0 mesons is obtained: τ(B)=1.61+0.08−0.07(stat.)±0.05(syst.)ps
dc.relation.ispartof	Zeitschrift für Physik C-Particles and Fields, 1995, vol. 68, num. 1, p. 13-23
dc.subject	Partícules (Física nuclear)
dc.subject	Detectors de radiació
dc.title	A measurement of b+ and b-0 lifetimes using (d)over-bar-l(+) events
dc.type	journal article	es_ES
dc.date.updated	2014-05-14T09:14:05Z
dc.identifier.doi	10.1007/BF01579800
dc.identifier.idgrec	006576
dc.rights.accessRights	open access	es_ES