Is the f1(1420) Our First Hybrid Meson?

Abstract
It is argued that the f1 (1420) is probably a ground-state hybrid meson, ( uu + dd ) g /√2. The decay properties of the other members of ground-state hybrid-meson nonets with JPC =1 +- and (0,1,2) ++ are sudied in the framework of an extended covariant oscillator model. On this basis several plausible corresponding candidates are assigned.

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