Color-Singlet Technipions at the Tevatron

Abstract

I discuss production and detection at the Tevatron $\text{pbarp}$ collider of pairs of light ($\text{mpi}=100$--$200\text{gev}$) color--singlet technipions that are expected in all nonminimal models of technicolor. Gluon fusion production rates can be as large as $\text{CO}(1\text{pb})$. Topcolor--assisted technicolor is required to prevent top quarks from decaying as $t\text{ra}\text{tpip}b$. An intriguing consequence of this is that the decays $\text{tpip}\text{ra}{\tau }^{+}{\nu }_{\tau }$, $c\text{ol}s$ and $\text{tpiz}\text{ra}b\text{ol}b$ may also be suppressed so that $\text{tpip}\text{ra}{W}^{+}\gamma$ and $\text{tpiz}\text{ra}\gamma \gamma$ are significant. These modes have spectactular signatures at the Tevatron.

Comments: 12 pages, TeX using harmac macros; two uuencoded figures