Signals for compositeness atep colliders: “Leptogluons” and exotic colored vectorbosons

Abstract

Production rates and signals for coloroctet leptonsl ₈ atep machines like Hera and a$\sqrt s = 2$ TeV collider are presented. In case of very heavy leptogluons:m ₈≈0(100 GeV) we argue that rates based on direct electron-gluon fusion are possibly strongly overestimated in the literature. In composite models the appearance of leptogluons always implies the existence of color exotic vectorbosons. Therefore we considerl ₈ production in electron-quark scatterings. We find that even at HERA energies such reactions should be detectable if there is nearby compositeness (Λ _H ∼ several TeV) and the mass of the coloroctet neutrinom _v8<180 GeV. From such events it would be possible to extract information on the deeper structure of the preon model.