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Search for pair production of neutral higgs bosons in Z0 decays

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Search for pair production of neutral higgs bosons in Z0 decays

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DELPHI Collaboration; Allen, Paul; Alted Abad, Francesc Josep; Benlloch Baviera, José María; Castillo Giménez, María Victoria Perfil; Fez Laso, M. D. M. de; Ferrer Soria, Antonio Perfil; Fuster Verdú, Juan A. Perfil; Hernández Rey, Juan José Perfil; Higón Rodríguez, Emilio Perfil; Lozano Bahilo, José Julio; Sánchez Rojo, María Ester; Sánchez Martínez, Javier; Sanchis Peris, Enrique; Sebastiá Cortés, Angel; Llosá Reig, Rafael; Valls Ferrer, Juan Antonio; Velasco González, Jorge; Zúñiga Román, Juan

This document is a artículoDate1990

Este documento está disponible también en : http://hdl.handle.net/10550/53670

The pair production of the lightest scalar Higgs boson, h, and a pseudoscalar Higgs boson, A, was searched for in a data sample containing 10 000 hadronic Z 0 decays. The search involved both leptonic and purely hadronic decay channels of each Higgs boson. No signal was found, and limits on the Higgs boson masses, in the framework of the minimal supersymmetric extension of the standard model, ar reported up to 35 GeV/ c 2 at 95% CL, for both tan β 1 and tan β <1, where tan β is the ratio of the vacuum expectation values of the two Higgs doublets.

DELPHI Collaboration Allen, Paul Alted Abad, Francesc Josep Benlloch Baviera, José María Castillo Giménez, María Victoria Fez Laso, M. D. M. de Ferrer Soria, Antonio Fuster Verdú, Juan A. Hernández Rey, Juan José Higón Rodríguez, Emilio Lozano Bahilo, José Julio Sánchez Rojo, María Ester Sánchez Martínez, Javier Sanchis Peris, Enrique Sebastiá Cortés, Angel Llosá Reig, Rafael Valls Ferrer, Juan Antonio Velasco González, Jorge Zúñiga Román, Juan 1990 Search for pair production of neutral higgs bosons in Z0 decays Physics Letters B 245 2 276 288

http://dx.doi.org/10.1016/0370-2693(90)90147-X