Improved measurements of cross-sections and asymmetries at the z(0) resonance
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Improved measurements of cross-sections and asymmetries at the z(0) resonance

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Improved measurements of cross-sections and asymmetries at the z(0) resonance

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DELPHI Collaboration; Castillo Giménez, María Victoria Perfil; Cases Ruiz, Ramón; Chrin, J. T. M.; Cortina Gil, Eduardo; Fez Laso, M. D. M. de; Ferrer Soria, Antonio Perfil; Fuster Verdú, Juan A. Perfil; García García, Carmen Perfil; Gómez Cadenas, Juan José Perfil; Higón Rodríguez, Emilio Perfil; Hernández Rey, Juan José Perfil; Hernando Morata, José Ángel; Lacasta Llácer, Carlos; Lozano Bahilo, José Julio; Martínez Vidal, Fernando Perfil; Martí García, Salvador; Salt Cairols, José Perfil; Valls Ferrer, Juan Antonio; Zúñiga Román, Juan
Aquest document és un/a article, creat/da en: 1994
During the 1992 running period of the LEP e+e- collider, the DELPHI experiment accumulated approximately 24 pb-1 of data at the Z0 peak. The decays into hadrons and charged leptons have been analysed to give values for the cross sections and leptonic forward-backward asymmetries which are significantly improved with respect to those previously published by the DELPHI collaboration. Incorporating these new data, more precise values for the Z0 resonance parameters are obtained from model-independent fits. The results are interpreted within the framework of the Standard Model, yielding for the top quark mass m(t) = 157(-48)+36(expt.)-20(+19)(Higgs) GeV, and for the effective mixing angle sin2 theta(eff)lept = 0.2328 +/- 0.0013 (expt.)-0.0003(+0.0001)(Higgs), where (Higgs) represents the variation due to Higgs boson mass in the range 60 to 1000 GeV, with central value 300 GeV.

    DELPHI Collaboration Castillo Giménez, María Victoria Cases Ruiz, Ramón Chrin, J. T. M. Cortina Gil, Eduardo Fez Laso, M. D. M. de Ferrer Soria, Antonio Fuster Verdú, Juan A. García García, Carmen Gómez Cadenas, Juan José Higón Rodríguez, Emilio Hernández Rey, Juan José Hernando Morata, José Ángel Lacasta Llácer, Carlos Lozano Bahilo, José Julio Martínez Vidal, Fernando Martí García, Salvador Salt Cairols, José Valls Ferrer, Juan Antonio Zúñiga Román, Juan 1994 Improved measurements of cross-sections and asymmetries at the z(0) resonance Nuclear Physics B 418 3 403 427
http://dx.doi.org/10.1016/0550-3213(94)90524-X
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