A search for neutral higgs particles in Z(0) decays

A search for neutral higgs particles in Z(0) decays

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A search for neutral higgs particles in Z(0) decays

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DELPHI Collaboration; Allen, Paul; Castillo Giménez, María Victoria Perfil; Chrin, J. T. M.; Fez Laso, M. D. M. de; Ferrer Soria, Antonio Perfil; Fuster Verdú, Juan A. Perfil; García García, Carmen Perfil; Gómez Cadenas, Juan José Perfil; Hernández Rey, Juan José Perfil; Higón Rodríguez, Emilio Perfil; Lozano Bahilo, José Julio; Lacasta Llácer, Carlos; Martí García, Salvador; Salt Cairols, José Perfil; Valls Ferrer, Juan Antonio; Zúñiga Román, Juan
This document is a artículoDate1992

Este documento está disponible también en : http://hdl.handle.net/10550/53834
The search in DELPHI data for neutral Higgs bosons is described. No candidate for the Standard Model Higgs is seen in Z0 decays to H-0-nu-nuBAR, H-0-mu+-mu- or H-0-tau+-tau- after selections that proved efficient for finding simulated H-0. One remaining candidate for Z0 --> H-0e+ e- is consistent with background. Together with our earlier studies, these results restrict the H-0 mass to be above 38 GeV/c2 at the 95% confidence level. No signal is found for decays of Minimal Supersymmetric Standard Model neutral Higgs bosons to tau+-tau-. Limits are obtained for their decays to produce four jets.

    DELPHI Collaboration Allen, Paul Castillo Giménez, María Victoria Chrin, J. T. M. Fez Laso, M. D. M. de Ferrer Soria, Antonio Fuster Verdú, Juan A. García García, Carmen Gómez Cadenas, Juan José Hernández Rey, Juan José Higón Rodríguez, Emilio Lozano Bahilo, José Julio Lacasta Llácer, Carlos Martí García, Salvador Salt Cairols, José Valls Ferrer, Juan Antonio Zúñiga Román, Juan 1992 A search for neutral higgs particles in Z(0) decays Nuclear Physics B 373 1 3 34

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