An upper limit for Br(Z°→ggg) from symmetric 3-jet hadronic decays.
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An upper limit for Br(Z°→ggg) from symmetric 3-jet hadronic decays.

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An upper limit for Br(Z°→ggg) from symmetric 3-jet hadronic decays.

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DELPHI Collaboration; Alemany Fernández, Reyes; Cabrera Urbán, Susana Perfil; Castillo Giménez, María Victoria Perfil; Cortina Gil, Eduardo; Ferrer Soria, Antonio Perfil; Fuster Verdú, Juan A. Perfil; García García, Carmen Perfil; Hernández Rey, Juan José Perfil; Higón Rodríguez, Emilio Perfil; Lacasta Llácer, Carlos; Martínez Vidal, Fernando Perfil; Navas Concha, Sergio; Salt Cairols, José Perfil
This document is a artículoDate1996

Este documento está disponible también en : http://dx.doi.org/10.1016/S0370-2693(96)01450-5

Este documento está disponible también en : http://hdl.handle.net/10550/33899
An upper limit for BR(Z0 → 3g) is obtained from a correlation method, which distinguishes statistically between quark and gluon jets by using the difference in their charged particle multiplicity distributions. From the sample of threefold symmetric three-jet events collected by the DELPHI experiment at LEP during 1991¿1994, the 95% confidence level upper limit is deduced to be: BR(Z0 → 3g) ≤ 1.6 × 10−2 for the JADE and BR(Z0 → 3g) ≤ 1.5 × 10−2 for the DURHAM jet-finder.

    DELPHI Collaboration Alemany, R. Cabrera Urbán, Susana Castillo Giménez, María Victoria Cortina, E. Ferrer Soria, Antonio Fuster Verdú, Juan A. García García, Carmen Hernández Rey, Juan José Higón Rodríguez, Emilio Lacasta Llácer, Carlos Martínez Vidal, Fernando Navas, S. Salt Cairols, José 1996 An upper limit for Br(Z°→ggg) from symmetric 3-jet hadronic decays. Physics Letters B 389 2 405 415
http://dx.doi.org/10.1016/S0370-2693(96)01450-5

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