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Measurement of the partial width of the decay of the Z0 into charm quark pairs

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Measurement of the partial width of the decay of the Z0 into charm quark pairs

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dc.contributor.author DELPHI Collaboration
dc.contributor.author Allen, Paul
dc.contributor.author Alted Abad, Francesc Josep
dc.contributor.author Benlloch Baviera, José María
dc.contributor.author Castillo Giménez, María Victoria
dc.contributor.author Contreras González, José Luis
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 Hernández Rey, Juan José
dc.contributor.author Higón Rodríguez, Emilio
dc.contributor.author Lozano Bahilo, José Julio
dc.contributor.author Llosá Reig, Rafael
dc.contributor.author Sanchis Peris, Enrique
dc.contributor.author Sebastiá Cortés, Angel
dc.contributor.author Sánchez Rojo, María Ester
dc.contributor.author Sánchez Martínez, Javier
dc.contributor.author Valls Ferrer, Juan Antonio
dc.contributor.author Velasco González, Jorge
dc.contributor.author Zúñiga Román, Juan
dc.date.accessioned 2016-05-23T11:32:41Z
dc.date.available 2016-05-23T11:32:41Z
dc.date.issued 1990
dc.identifier.citation DELPHI Collaboration Allen, Paul Alted Abad, Francesc Josep Benlloch Baviera, José María Castillo Giménez, María Victoria Contreras González, José Luis Ferrer Soria, Antonio Fuster Verdú, Juan A. Fez Laso, M. D. M. de Hernández Rey, Juan José Higón Rodríguez, Emilio Lozano Bahilo, José Julio Llosá Reig, Rafael Sanchis Peris, Enrique Sebastiá Cortés, Angel Sánchez Rojo, María Ester Sánchez Martínez, Javier Valls Ferrer, Juan Antonio Velasco González, Jorge Zúñiga Román, Juan 1990 Measurement of the partial width of the decay of the Z0 into charm quark pairs Physics Letters B 252 1 140 148
dc.identifier.uri http://hdl.handle.net/10550/53679
dc.description.abstract A determination of the partial width Γcc̄ of the Z0 boson into charm quark pairs is presented, based on a total sample of 36 900 Z0 hadronic decays measured with the DELPHI detector at the LEP collider. The production rate of cc̄ events is derived from the inclusive analysis of charged pions coming from the decay of charmed meson D∗+→D0π+ and D∗−→D̄0 π− where the π± is constrained by kinematics to have a low pT with respect to the axis. The probability to produce these π± from D∗± decay in cc̄ events is taken to be 0.31 ±_0.05 as measured at √s=10.55 GeV. The measured relative partial width Γcc̄Γh = 0.162± 0.030 (stat.) ±0.050 (syst.) is in good agreement with the standard moel value of 0.171. Together with our previous measurement of the total hadronic width Γh this implies Γcc̄ = 282±53 (stat.)±88(syst.) MeV.
dc.language.iso eng
dc.relation.ispartof Physics Letters B, 1990, vol. 252, num. 1, p. 140-148
dc.subject Física nuclear
dc.title Measurement of the partial width of the decay of the Z0 into charm quark pairs
dc.type journal article es_ES
dc.date.updated 2016-05-23T11:32:42Z
dc.identifier.doi 10.1016/0370-2693(90)91096-T
dc.identifier.idgrec 070965
dc.rights.accessRights open access es_ES

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