On the small contribution to the Z0 width of a new and elusive vector-like down quark singlet

F. Del Aguila, Ll Garrido, R. Miquel

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    We discuss the small contribution of a new vector-like down quark singlet to the Z0 hadronic width. Such a particle could be somewhat elusive, in particular at large hadron colliders, for it might be hidden in the hadronic background. It is also possible for appropriate values of the new (mass) parameters that this vector-like quark could be detected in missing transverse momentum distributions for pure hadronic events, as well as in dilepton mass distributions for events with no missing transverse momentum. © 1990.
    Original languageEnglish
    Pages (from-to)503-506
    JournalPhysics Letters B
    Issue number3-4
    Publication statusPublished - 14 Jun 1990

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