Color-singlet technipions at the Tevatron

Abstract

I discuss production and detection at the Tevatron collider of pairs of light (MπT = 100–200GeV) color-singlet technipions that are expected in all nonminimal models of technicolor. Gluon fusion production rates can be as large as O(1 pb). Topcolor-assisted technicolor is required to prevent top quarks from decaying at t → πT^+b. An intriguing consequence of this is that the decays πT^+ → τ+ντ, and may also be suppressed so that πT^+ → W^+γ and πT^0 → γγ are significant. These modes have spectactular signatures at the Tevatron.First author draf