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A measurement of the mean lifetimes of charged and neutral B-hadrons

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A measurement of the mean lifetimes of charged and neutral B-hadrons

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dc.contributor.author	DELPHI Collaboration
dc.contributor.author	Allen, Paul
dc.contributor.author	Chrin, J. T. M.
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	Fez Laso, M. D. M. de
dc.contributor.author	Gómez Cadenas, Juan José
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	Lozano Bahilo, José Julio
dc.contributor.author	Martí García, Salvador
dc.contributor.author	Salt Cairols, José
dc.contributor.author	Valls Ferrer, Juan Antonio
dc.contributor.author	Zúñiga Román, Juan
dc.date.accessioned	2016-05-26T12:30:04Z
dc.date.available	2016-05-26T12:30:04Z
dc.date.issued	1993
dc.identifier.citation	DELPHI Collaboration Allen, Paul Chrin, J. T. M. Castillo Giménez, María Victoria Cortina Gil, Eduardo Ferrer Soria, Antonio Fuster Verdú, Juan A. Fez Laso, M. D. M. de Gómez Cadenas, Juan José García García, Carmen Hernández Rey, Juan José Higón Rodríguez, Emilio Lacasta Llácer, Carlos Lozano Bahilo, José Julio Martí García, Salvador Salt Cairols, José Valls Ferrer, Juan Antonio Zúñiga Román, Juan 1993 A measurement of the mean lifetimes of charged and neutral B-hadrons Physics Letters B 312 1-2 253 266
dc.identifier.uri	http://hdl.handle.net/10550/53831
dc.description.abstract	The decays of B-hadrons have been reconstructed using the charged particles recorded in the DELPHI silicon microstrip detector. The sum of the charges of the secondaries determines the charge of the B-hadron parent. Some 232 114 multihadronic Z0 decays recorded during the 1991 run of LEP at centre-of-mass energies between 88.2 GeV and 94.2 GeV yield 253 B-hadron candidates with well-measured charge. From these the mean lifetimes of neutral and charged B-hadrons are found to be 1.44 +/- 0.21(stat.) +/- 0.14(syst.) ps and 1.56 +/- 0.19(stat.) +/- 0.13(syst.) ps respectively. The ratio of their lifetimes is 1.09(-0.23)+0.28 (Stat.) +/- 0.11 (syst.). Under some assumptions on the abundance and lifetime of the LAMBDA(b)0 and B(s)0 states, the B0 and B+ lifetimes are inferred.
dc.language.iso	eng
dc.relation.ispartof	Physics Letters B, 1993, vol. 312, num. 1-2, p. 253-266
dc.subject	Física nuclear
dc.title	A measurement of the mean lifetimes of charged and neutral B-hadrons
dc.type	journal article	es_ES
dc.date.updated	2016-05-26T12:30:04Z
dc.identifier.doi	10.1016/0370-2693(93)90520-R
dc.identifier.idgrec	070486
dc.rights.accessRights	open access	es_ES